git.oblomov.eu Git - linux-2.6/blob - 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 int
 164 qeth_hard_header_parse(const struct sk_buff *skb, unsigned char *haddr);
 165
 166 static void
 167 qeth_notify_processes(void)
 168 {
 169         /*notify all  registered processes */
 170         struct qeth_notify_list_struct *n_entry;
 171
 172         QETH_DBF_TEXT(trace,3,"procnoti");
 173         spin_lock(&qeth_notify_lock);
 174         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 175                 send_sig(n_entry->signum, n_entry->task, 1);
 176         }
 177         spin_unlock(&qeth_notify_lock);
 178
 179 }
 180 int
 181 qeth_notifier_unregister(struct task_struct *p)
 182 {
 183         struct qeth_notify_list_struct *n_entry, *tmp;
 184
 185         QETH_DBF_TEXT(trace, 2, "notunreg");
 186         spin_lock(&qeth_notify_lock);
 187         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 188                 if (n_entry->task == p) {
 189                         list_del(&n_entry->list);
 190                         kfree(n_entry);
 191                         goto out;
 192                 }
 193         }
 194 out:
 195         spin_unlock(&qeth_notify_lock);
 196         return 0;
 197 }
 198 int
 199 qeth_notifier_register(struct task_struct *p, int signum)
 200 {
 201         struct qeth_notify_list_struct *n_entry;
 202
 203         /*check first if entry already exists*/
 204         spin_lock(&qeth_notify_lock);
 205         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 206                 if (n_entry->task == p) {
 207                         n_entry->signum = signum;
 208                         spin_unlock(&qeth_notify_lock);
 209                         return 0;
 210                 }
 211         }
 212         spin_unlock(&qeth_notify_lock);
 213
 214         n_entry = (struct qeth_notify_list_struct *)
 215                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 216         if (!n_entry)
 217                 return -ENOMEM;
 218         n_entry->task = p;
 219         n_entry->signum = signum;
 220         spin_lock(&qeth_notify_lock);
 221         list_add(&n_entry->list,&qeth_notify_list);
 222         spin_unlock(&qeth_notify_lock);
 223         return 0;
 224 }
 225
 226
 227 /**
 228  * free channel command buffers
 229  */
 230 static void
 231 qeth_clean_channel(struct qeth_channel *channel)
 232 {
 233         int cnt;
 234
 235         QETH_DBF_TEXT(setup, 2, "freech");
 236         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 237                 kfree(channel->iob[cnt].data);
 238 }
 239
 240 /**
 241  * free card
 242  */
 243 static void
 244 qeth_free_card(struct qeth_card *card)
 245 {
 246
 247         QETH_DBF_TEXT(setup, 2, "freecrd");
 248         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 249         qeth_clean_channel(&card->read);
 250         qeth_clean_channel(&card->write);
 251         if (card->dev)
 252                 free_netdev(card->dev);
 253         qeth_clear_ip_list(card, 0, 0);
 254         qeth_clear_ipato_list(card);
 255         kfree(card->ip_tbd_list);
 256         qeth_free_qdio_buffers(card);
 257         kfree(card);
 258 }
 259
 260 /**
 261  * alloc memory for command buffer per channel
 262  */
 263 static int
 264 qeth_setup_channel(struct qeth_channel *channel)
 265 {
 266         int cnt;
 267
 268         QETH_DBF_TEXT(setup, 2, "setupch");
 269         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 270                 channel->iob[cnt].data = (char *)
 271                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 272                 if (channel->iob[cnt].data == NULL)
 273                         break;
 274                 channel->iob[cnt].state = BUF_STATE_FREE;
 275                 channel->iob[cnt].channel = channel;
 276                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 277                 channel->iob[cnt].rc = 0;
 278         }
 279         if (cnt < QETH_CMD_BUFFER_NO) {
 280                 while (cnt-- > 0)
 281                         kfree(channel->iob[cnt].data);
 282                 return -ENOMEM;
 283         }
 284         channel->buf_no = 0;
 285         channel->io_buf_no = 0;
 286         atomic_set(&channel->irq_pending, 0);
 287         spin_lock_init(&channel->iob_lock);
 288
 289         init_waitqueue_head(&channel->wait_q);
 290         channel->irq_tasklet.data = (unsigned long) channel;
 291         channel->irq_tasklet.func = qeth_irq_tasklet;
 292         return 0;
 293 }
 294
 295 /**
 296  * alloc memory for card structure
 297  */
 298 static struct qeth_card *
 299 qeth_alloc_card(void)
 300 {
 301         struct qeth_card *card;
 302
 303         QETH_DBF_TEXT(setup, 2, "alloccrd");
 304         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
 305         if (!card)
 306                 return NULL;
 307         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 308         if (qeth_setup_channel(&card->read)) {
 309                 kfree(card);
 310                 return NULL;
 311         }
 312         if (qeth_setup_channel(&card->write)) {
 313                 qeth_clean_channel(&card->read);
 314                 kfree(card);
 315                 return NULL;
 316         }
 317         return card;
 318 }
 319
 320 static long
 321 __qeth_check_irb_error(struct ccw_device *cdev, unsigned long intparm,
 322                        struct irb *irb)
 323 {
 324         if (!IS_ERR(irb))
 325                 return 0;
 326
 327         switch (PTR_ERR(irb)) {
 328         case -EIO:
 329                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 330                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 331                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 332                 break;
 333         case -ETIMEDOUT:
 334                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 335                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 336                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 337                 if (intparm == QETH_RCD_PARM) {
 338                         struct qeth_card *card = CARD_FROM_CDEV(cdev);
 339
 340                         if (card && (card->data.ccwdev == cdev)) {
 341                                 card->data.state = CH_STATE_DOWN;
 342                                 wake_up(&card->wait_q);
 343                         }
 344                 }
 345                 break;
 346         default:
 347                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 348                            cdev->dev.bus_id);
 349                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 350                 QETH_DBF_TEXT(trace, 2, "  rc???");
 351         }
 352         return PTR_ERR(irb);
 353 }
 354
 355 static int
 356 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 357 {
 358         int dstat,cstat;
 359         char *sense;
 360
 361         sense = (char *) irb->ecw;
 362         cstat = irb->scsw.cstat;
 363         dstat = irb->scsw.dstat;
 364
 365         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 366                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 367                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 368                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 369                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 370                            cdev->dev.bus_id, dstat, cstat);
 371                 HEXDUMP16(WARN, "irb: ", irb);
 372                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 373                 return 1;
 374         }
 375
 376         if (dstat & DEV_STAT_UNIT_CHECK) {
 377                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 378                     SENSE_RESETTING_EVENT_FLAG) {
 379                         QETH_DBF_TEXT(trace,2,"REVIND");
 380                         return 1;
 381                 }
 382                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 383                     SENSE_COMMAND_REJECT_FLAG) {
 384                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 385                         return 0;
 386                 }
 387                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 388                         QETH_DBF_TEXT(trace,2,"AFFE");
 389                         return 1;
 390                 }
 391                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 392                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 393                         return 0;
 394                 }
 395                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 396                         return 1;
 397         }
 398         return 0;
 399 }
 400 static int qeth_issue_next_read(struct qeth_card *);
 401
 402 /**
 403  * interrupt handler
 404  */
 405 static void
 406 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 407 {
 408         int rc;
 409         int cstat,dstat;
 410         struct qeth_cmd_buffer *buffer;
 411         struct qeth_channel *channel;
 412         struct qeth_card *card;
 413
 414         QETH_DBF_TEXT(trace,5,"irq");
 415
 416         if (__qeth_check_irb_error(cdev, intparm, irb))
 417                 return;
 418         cstat = irb->scsw.cstat;
 419         dstat = irb->scsw.dstat;
 420
 421         card = CARD_FROM_CDEV(cdev);
 422         if (!card)
 423                 return;
 424
 425         if (card->read.ccwdev == cdev){
 426                 channel = &card->read;
 427                 QETH_DBF_TEXT(trace,5,"read");
 428         } else if (card->write.ccwdev == cdev) {
 429                 channel = &card->write;
 430                 QETH_DBF_TEXT(trace,5,"write");
 431         } else {
 432                 channel = &card->data;
 433                 QETH_DBF_TEXT(trace,5,"data");
 434         }
 435         atomic_set(&channel->irq_pending, 0);
 436
 437         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 438                 channel->state = CH_STATE_STOPPED;
 439
 440         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 441                 channel->state = CH_STATE_HALTED;
 442
 443         /*let's wake up immediately on data channel*/
 444         if ((channel == &card->data) && (intparm != 0) &&
 445             (intparm != QETH_RCD_PARM))
 446                 goto out;
 447
 448         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 449                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 450                 /* we don't have to handle this further */
 451                 intparm = 0;
 452         }
 453         if (intparm == QETH_HALT_CHANNEL_PARM) {
 454                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 455                 /* we don't have to handle this further */
 456                 intparm = 0;
 457         }
 458         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 459             (dstat & DEV_STAT_UNIT_CHECK) ||
 460             (cstat)) {
 461                 if (irb->esw.esw0.erw.cons) {
 462                         /* TODO: we should make this s390dbf */
 463                         PRINT_WARN("sense data available on channel %s.\n",
 464                                    CHANNEL_ID(channel));
 465                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 466                         HEXDUMP16(WARN,"irb: ",irb);
 467                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 468                 }
 469                 if (intparm == QETH_RCD_PARM) {
 470                         channel->state = CH_STATE_DOWN;
 471                         goto out;
 472                 }
 473                 rc = qeth_get_problem(cdev,irb);
 474                 if (rc) {
 475                         qeth_schedule_recovery(card);
 476                         goto out;
 477                 }
 478         }
 479
 480         if (intparm == QETH_RCD_PARM) {
 481                 channel->state = CH_STATE_RCD_DONE;
 482                 goto out;
 483         }
 484         if (intparm) {
 485                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 486                 buffer->state = BUF_STATE_PROCESSED;
 487         }
 488         if (channel == &card->data)
 489                 return;
 490
 491         if (channel == &card->read &&
 492             channel->state == CH_STATE_UP)
 493                 qeth_issue_next_read(card);
 494
 495         qeth_irq_tasklet((unsigned long)channel);
 496         return;
 497 out:
 498         wake_up(&card->wait_q);
 499 }
 500
 501 /**
 502  * tasklet function scheduled from irq handler
 503  */
 504 static void
 505 qeth_irq_tasklet(unsigned long data)
 506 {
 507         struct qeth_card *card;
 508         struct qeth_channel *channel;
 509         struct qeth_cmd_buffer *iob;
 510         __u8 index;
 511
 512         QETH_DBF_TEXT(trace,5,"irqtlet");
 513         channel = (struct qeth_channel *) data;
 514         iob = channel->iob;
 515         index = channel->buf_no;
 516         card = CARD_FROM_CDEV(channel->ccwdev);
 517         while (iob[index].state == BUF_STATE_PROCESSED) {
 518                 if (iob[index].callback !=NULL) {
 519                         iob[index].callback(channel,iob + index);
 520                 }
 521                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 522         }
 523         channel->buf_no = index;
 524         wake_up(&card->wait_q);
 525 }
 526
 527 static int qeth_stop_card(struct qeth_card *, int);
 528
 529 static int
 530 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 531 {
 532         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 533         int rc = 0, rc2 = 0, rc3 = 0;
 534         enum qeth_card_states recover_flag;
 535
 536         QETH_DBF_TEXT(setup, 3, "setoffl");
 537         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 538
 539         if (card->dev && netif_carrier_ok(card->dev))
 540                 netif_carrier_off(card->dev);
 541         recover_flag = card->state;
 542         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 543                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 544                            CARD_BUS_ID(card));
 545                 return -ERESTARTSYS;
 546         }
 547         rc  = ccw_device_set_offline(CARD_DDEV(card));
 548         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 549         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 550         if (!rc)
 551                 rc = (rc2) ? rc2 : rc3;
 552         if (rc)
 553                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 554         if (recover_flag == CARD_STATE_UP)
 555                 card->state = CARD_STATE_RECOVER;
 556         qeth_notify_processes();
 557         return 0;
 558 }
 559
 560 static int
 561 qeth_set_offline(struct ccwgroup_device *cgdev)
 562 {
 563         return  __qeth_set_offline(cgdev, 0);
 564 }
 565
 566 static int
 567 qeth_threads_running(struct qeth_card *card, unsigned long threads);
 568
 569
 570 static void
 571 qeth_remove_device(struct ccwgroup_device *cgdev)
 572 {
 573         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 574         unsigned long flags;
 575
 576         QETH_DBF_TEXT(setup, 3, "rmdev");
 577         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 578
 579         if (!card)
 580                 return;
 581
 582         wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
 583
 584         if (cgdev->state == CCWGROUP_ONLINE){
 585                 card->use_hard_stop = 1;
 586                 qeth_set_offline(cgdev);
 587         }
 588         /* remove form our internal list */
 589         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 590         list_del(&card->list);
 591         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 592         if (card->dev)
 593                 unregister_netdev(card->dev);
 594         qeth_remove_device_attributes(&cgdev->dev);
 595         qeth_free_card(card);
 596         cgdev->dev.driver_data = NULL;
 597         put_device(&cgdev->dev);
 598 }
 599
 600 static int
 601 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 602 static int
 603 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 604
 605 /**
 606  * Add/remove address to/from card's ip list, i.e. try to add or remove
 607  * reference to/from an IP address that is already registered on the card.
 608  * Returns:
 609  *      0  address was on card and its reference count has been adjusted,
 610  *         but is still > 0, so nothing has to be done
 611  *         also returns 0 if card was not on card and the todo was to delete
 612  *         the address -> there is also nothing to be done
 613  *      1  address was not on card and the todo is to add it to the card's ip
 614  *         list
 615  *      -1 address was on card and its reference count has been decremented
 616  *         to <= 0 by the todo -> address must be removed from card
 617  */
 618 static int
 619 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 620                       struct qeth_ipaddr **__addr)
 621 {
 622         struct qeth_ipaddr *addr;
 623         int found = 0;
 624
 625         list_for_each_entry(addr, &card->ip_list, entry) {
 626                 if (card->options.layer2) {
 627                         if ((addr->type == todo->type) &&
 628                             (memcmp(&addr->mac, &todo->mac,
 629                                     OSA_ADDR_LEN) == 0)) {
 630                                 found = 1;
 631                                 break;
 632                         }
 633                         continue;
 634                 }
 635                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 636                     (todo->proto     == QETH_PROT_IPV4)  &&
 637                     (addr->type      == todo->type)      &&
 638                     (addr->u.a4.addr == todo->u.a4.addr) &&
 639                     (addr->u.a4.mask == todo->u.a4.mask)) {
 640                         found = 1;
 641                         break;
 642                 }
 643                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 644                     (todo->proto       == QETH_PROT_IPV6)     &&
 645                     (addr->type        == todo->type)         &&
 646                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 647                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 648                             sizeof(struct in6_addr)) == 0)) {
 649                         found = 1;
 650                         break;
 651                 }
 652         }
 653         if (found) {
 654                 addr->users += todo->users;
 655                 if (addr->users <= 0){
 656                         *__addr = addr;
 657                         return -1;
 658                 } else {
 659                         /* for VIPA and RXIP limit refcount to 1 */
 660                         if (addr->type != QETH_IP_TYPE_NORMAL)
 661                                 addr->users = 1;
 662                         return 0;
 663                 }
 664         }
 665         if (todo->users > 0) {
 666                 /* for VIPA and RXIP limit refcount to 1 */
 667                 if (todo->type != QETH_IP_TYPE_NORMAL)
 668                         todo->users = 1;
 669                 return 1;
 670         } else
 671                 return 0;
 672 }
 673
 674 static int
 675 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 676                               int same_type)
 677 {
 678         struct qeth_ipaddr *tmp;
 679
 680         list_for_each_entry(tmp, list, entry) {
 681                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 682                     (addr->proto    == QETH_PROT_IPV4)            &&
 683                     ((same_type && (tmp->type == addr->type)) ||
 684                      (!same_type && (tmp->type != addr->type))  ) &&
 685                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 686                         return 1;
 687                 }
 688                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 689                     (addr->proto == QETH_PROT_IPV6)               &&
 690                     ((same_type && (tmp->type == addr->type)) ||
 691                      (!same_type && (tmp->type != addr->type))  ) &&
 692                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 693                             sizeof(struct in6_addr)) == 0)          ) {
 694                         return 1;
 695                 }
 696         }
 697         return 0;
 698 }
 699
 700 /*
 701  * Add IP to be added to todo list. If there is already an "add todo"
 702  * in this list we just incremenent the reference count.
 703  * Returns 0 if we  just incremented reference count.
 704  */
 705 static int
 706 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 707 {
 708         struct qeth_ipaddr *tmp, *t;
 709         int found = 0;
 710
 711         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 712                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 713                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 714                         return 0;
 715                 if (card->options.layer2) {
 716                         if ((tmp->type  == addr->type)  &&
 717                             (tmp->is_multicast == addr->is_multicast) &&
 718                             (memcmp(&tmp->mac, &addr->mac,
 719                                     OSA_ADDR_LEN) == 0)) {
 720                                 found = 1;
 721                                 break;
 722                         }
 723                         continue;
 724                 }
 725                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 726                     (addr->proto       == QETH_PROT_IPV4)     &&
 727                     (tmp->type         == addr->type)         &&
 728                     (tmp->is_multicast == addr->is_multicast) &&
 729                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 730                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 731                         found = 1;
 732                         break;
 733                 }
 734                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 735                     (addr->proto       == QETH_PROT_IPV6)      &&
 736                     (tmp->type         == addr->type)          &&
 737                     (tmp->is_multicast == addr->is_multicast)  &&
 738                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 739                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 740                             sizeof(struct in6_addr)) == 0)) {
 741                         found = 1;
 742                         break;
 743                 }
 744         }
 745         if (found){
 746                 if (addr->users != 0)
 747                         tmp->users += addr->users;
 748                 else
 749                         tmp->users += add? 1:-1;
 750                 if (tmp->users == 0) {
 751                         list_del(&tmp->entry);
 752                         kfree(tmp);
 753                 }
 754                 return 0;
 755         } else {
 756                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 757                         list_add(&addr->entry, card->ip_tbd_list);
 758                 else {
 759                         if (addr->users == 0)
 760                                 addr->users += add? 1:-1;
 761                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 762                             qeth_is_addr_covered_by_ipato(card, addr)){
 763                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 764                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 765                         }
 766                         list_add_tail(&addr->entry, card->ip_tbd_list);
 767                 }
 768                 return 1;
 769         }
 770 }
 771
 772 /**
 773  * Remove IP address from list
 774  */
 775 static int
 776 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 777 {
 778         unsigned long flags;
 779         int rc = 0;
 780
 781         QETH_DBF_TEXT(trace, 4, "delip");
 782
 783         if (card->options.layer2)
 784                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 785         else if (addr->proto == QETH_PROT_IPV4)
 786                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 787         else {
 788                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 789                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 790         }
 791         spin_lock_irqsave(&card->ip_lock, flags);
 792         rc = __qeth_insert_ip_todo(card, addr, 0);
 793         spin_unlock_irqrestore(&card->ip_lock, flags);
 794         return rc;
 795 }
 796
 797 static int
 798 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 799 {
 800         unsigned long flags;
 801         int rc = 0;
 802
 803         QETH_DBF_TEXT(trace, 4, "addip");
 804         if (card->options.layer2)
 805                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 806         else if (addr->proto == QETH_PROT_IPV4)
 807                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 808         else {
 809                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 810                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 811         }
 812         spin_lock_irqsave(&card->ip_lock, flags);
 813         rc = __qeth_insert_ip_todo(card, addr, 1);
 814         spin_unlock_irqrestore(&card->ip_lock, flags);
 815         return rc;
 816 }
 817
 818 static void
 819 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 820 {
 821         struct qeth_ipaddr *addr, *tmp;
 822         int rc;
 823 again:
 824         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 825                 if (addr->is_multicast) {
 826                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 827                         rc = qeth_deregister_addr_entry(card, addr);
 828                         spin_lock_irqsave(&card->ip_lock, *flags);
 829                         if (!rc) {
 830                                 list_del(&addr->entry);
 831                                 kfree(addr);
 832                                 goto again;
 833                         }
 834                 }
 835         }
 836 }
 837
 838 static void
 839 qeth_set_ip_addr_list(struct qeth_card *card)
 840 {
 841         struct list_head *tbd_list;
 842         struct qeth_ipaddr *todo, *addr;
 843         unsigned long flags;
 844         int rc;
 845
 846         QETH_DBF_TEXT(trace, 2, "sdiplist");
 847         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 848
 849         spin_lock_irqsave(&card->ip_lock, flags);
 850         tbd_list = card->ip_tbd_list;
 851         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 852         if (!card->ip_tbd_list) {
 853                 QETH_DBF_TEXT(trace, 0, "silnomem");
 854                 card->ip_tbd_list = tbd_list;
 855                 spin_unlock_irqrestore(&card->ip_lock, flags);
 856                 return;
 857         } else
 858                 INIT_LIST_HEAD(card->ip_tbd_list);
 859
 860         while (!list_empty(tbd_list)){
 861                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 862                 list_del(&todo->entry);
 863                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 864                         __qeth_delete_all_mc(card, &flags);
 865                         kfree(todo);
 866                         continue;
 867                 }
 868                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 869                 if (rc == 0) {
 870                         /* nothing to be done; only adjusted refcount */
 871                         kfree(todo);
 872                 } else if (rc == 1) {
 873                         /* new entry to be added to on-card list */
 874                         spin_unlock_irqrestore(&card->ip_lock, flags);
 875                         rc = qeth_register_addr_entry(card, todo);
 876                         spin_lock_irqsave(&card->ip_lock, flags);
 877                         if (!rc)
 878                                 list_add_tail(&todo->entry, &card->ip_list);
 879                         else
 880                                 kfree(todo);
 881                 } else if (rc == -1) {
 882                         /* on-card entry to be removed */
 883                         list_del_init(&addr->entry);
 884                         spin_unlock_irqrestore(&card->ip_lock, flags);
 885                         rc = qeth_deregister_addr_entry(card, addr);
 886                         spin_lock_irqsave(&card->ip_lock, flags);
 887                         if (!rc)
 888                                 kfree(addr);
 889                         else
 890                                 list_add_tail(&addr->entry, &card->ip_list);
 891                         kfree(todo);
 892                 }
 893         }
 894         spin_unlock_irqrestore(&card->ip_lock, flags);
 895         kfree(tbd_list);
 896 }
 897
 898 static void qeth_delete_mc_addresses(struct qeth_card *);
 899 static void qeth_add_multicast_ipv4(struct qeth_card *);
 900 static void qeth_layer2_add_multicast(struct qeth_card *);
 901 #ifdef CONFIG_QETH_IPV6
 902 static void qeth_add_multicast_ipv6(struct qeth_card *);
 903 #endif
 904
 905 static int
 906 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 907 {
 908         unsigned long flags;
 909
 910         spin_lock_irqsave(&card->thread_mask_lock, flags);
 911         if ( !(card->thread_allowed_mask & thread) ||
 912               (card->thread_start_mask & thread) ) {
 913                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 914                 return -EPERM;
 915         }
 916         card->thread_start_mask |= thread;
 917         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 918         return 0;
 919 }
 920
 921 static void
 922 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 923 {
 924         unsigned long flags;
 925
 926         spin_lock_irqsave(&card->thread_mask_lock, flags);
 927         card->thread_start_mask &= ~thread;
 928         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 929         wake_up(&card->wait_q);
 930 }
 931
 932 static void
 933 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 934 {
 935         unsigned long flags;
 936
 937         spin_lock_irqsave(&card->thread_mask_lock, flags);
 938         card->thread_running_mask &= ~thread;
 939         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 940         wake_up(&card->wait_q);
 941 }
 942
 943 static int
 944 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 945 {
 946         unsigned long flags;
 947         int rc = 0;
 948
 949         spin_lock_irqsave(&card->thread_mask_lock, flags);
 950         if (card->thread_start_mask & thread){
 951                 if ((card->thread_allowed_mask & thread) &&
 952                     !(card->thread_running_mask & thread)){
 953                         rc = 1;
 954                         card->thread_start_mask &= ~thread;
 955                         card->thread_running_mask |= thread;
 956                 } else
 957                         rc = -EPERM;
 958         }
 959         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 960         return rc;
 961 }
 962
 963 static int
 964 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 965 {
 966         int rc = 0;
 967
 968         wait_event(card->wait_q,
 969                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 970         return rc;
 971 }
 972
 973 static int
 974 qeth_recover(void *ptr)
 975 {
 976         struct qeth_card *card;
 977         int rc = 0;
 978
 979         card = (struct qeth_card *) ptr;
 980         daemonize("qeth_recover");
 981         QETH_DBF_TEXT(trace,2,"recover1");
 982         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 983         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 984                 return 0;
 985         QETH_DBF_TEXT(trace,2,"recover2");
 986         PRINT_WARN("Recovery of device %s started ...\n",
 987                    CARD_BUS_ID(card));
 988         card->use_hard_stop = 1;
 989         __qeth_set_offline(card->gdev,1);
 990         rc = __qeth_set_online(card->gdev,1);
 991         /* don't run another scheduled recovery */
 992         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 993         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 994         if (!rc)
 995                 PRINT_INFO("Device %s successfully recovered!\n",
 996                            CARD_BUS_ID(card));
 997         else
 998                 PRINT_INFO("Device %s could not be recovered!\n",
 999                            CARD_BUS_ID(card));
1000         return 0;
1001 }
1002
1003 void
1004 qeth_schedule_recovery(struct qeth_card *card)
1005 {
1006         QETH_DBF_TEXT(trace,2,"startrec");
1007         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1008                 schedule_work(&card->kernel_thread_starter);
1009 }
1010
1011 static int
1012 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1013 {
1014         unsigned long flags;
1015         int rc = 0;
1016
1017         spin_lock_irqsave(&card->thread_mask_lock, flags);
1018         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1019                         (u8) card->thread_start_mask,
1020                         (u8) card->thread_allowed_mask,
1021                         (u8) card->thread_running_mask);
1022         rc = (card->thread_start_mask & thread);
1023         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1024         return rc;
1025 }
1026
1027 static void
1028 qeth_start_kernel_thread(struct work_struct *work)
1029 {
1030         struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1031         QETH_DBF_TEXT(trace , 2, "strthrd");
1032
1033         if (card->read.state != CH_STATE_UP &&
1034             card->write.state != CH_STATE_UP)
1035                 return;
1036         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1037                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1038 }
1039
1040
1041 static void
1042 qeth_set_intial_options(struct qeth_card *card)
1043 {
1044         card->options.route4.type = NO_ROUTER;
1045 #ifdef CONFIG_QETH_IPV6
1046         card->options.route6.type = NO_ROUTER;
1047 #endif /* QETH_IPV6 */
1048         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1049         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1050         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1051         card->options.fake_broadcast = 0;
1052         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1053         card->options.fake_ll = 0;
1054         if (card->info.type == QETH_CARD_TYPE_OSN)
1055                 card->options.layer2 = 1;
1056         else
1057                 card->options.layer2 = 0;
1058         card->options.performance_stats = 0;
1059         card->options.rx_sg_cb = QETH_RX_SG_CB;
1060 }
1061
1062 /**
1063  * initialize channels ,card and all state machines
1064  */
1065 static int
1066 qeth_setup_card(struct qeth_card *card)
1067 {
1068
1069         QETH_DBF_TEXT(setup, 2, "setupcrd");
1070         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1071
1072         card->read.state  = CH_STATE_DOWN;
1073         card->write.state = CH_STATE_DOWN;
1074         card->data.state  = CH_STATE_DOWN;
1075         card->state = CARD_STATE_DOWN;
1076         card->lan_online = 0;
1077         card->use_hard_stop = 0;
1078         card->dev = NULL;
1079 #ifdef CONFIG_QETH_VLAN
1080         spin_lock_init(&card->vlanlock);
1081         card->vlangrp = NULL;
1082 #endif
1083         spin_lock_init(&card->lock);
1084         spin_lock_init(&card->ip_lock);
1085         spin_lock_init(&card->thread_mask_lock);
1086         card->thread_start_mask = 0;
1087         card->thread_allowed_mask = 0;
1088         card->thread_running_mask = 0;
1089         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1090         INIT_LIST_HEAD(&card->ip_list);
1091         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1092         if (!card->ip_tbd_list) {
1093                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1094                 return -ENOMEM;
1095         }
1096         INIT_LIST_HEAD(card->ip_tbd_list);
1097         INIT_LIST_HEAD(&card->cmd_waiter_list);
1098         init_waitqueue_head(&card->wait_q);
1099         /* intial options */
1100         qeth_set_intial_options(card);
1101         /* IP address takeover */
1102         INIT_LIST_HEAD(&card->ipato.entries);
1103         card->ipato.enabled = 0;
1104         card->ipato.invert4 = 0;
1105         card->ipato.invert6 = 0;
1106         /* init QDIO stuff */
1107         qeth_init_qdio_info(card);
1108         return 0;
1109 }
1110
1111 static int
1112 is_1920_device (struct qeth_card *card)
1113 {
1114         int single_queue = 0;
1115         struct ccw_device *ccwdev;
1116         struct channelPath_dsc {
1117                 u8 flags;
1118                 u8 lsn;
1119                 u8 desc;
1120                 u8 chpid;
1121                 u8 swla;
1122                 u8 zeroes;
1123                 u8 chla;
1124                 u8 chpp;
1125         } *chp_dsc;
1126
1127         QETH_DBF_TEXT(setup, 2, "chk_1920");
1128
1129         ccwdev = card->data.ccwdev;
1130         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1131         if (chp_dsc != NULL) {
1132                 /* CHPP field bit 6 == 1 -> single queue */
1133                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1134                 kfree(chp_dsc);
1135         }
1136         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1137         return single_queue;
1138 }
1139
1140 static int
1141 qeth_determine_card_type(struct qeth_card *card)
1142 {
1143         int i = 0;
1144
1145         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1146
1147         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1148         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1149         while (known_devices[i][4]) {
1150                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1151                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1152                         card->info.type = known_devices[i][4];
1153                         card->qdio.no_out_queues = known_devices[i][8];
1154                         card->info.is_multicast_different = known_devices[i][9];
1155                         if (is_1920_device(card)) {
1156                                 PRINT_INFO("Priority Queueing not able "
1157                                            "due to hardware limitations!\n");
1158                                 card->qdio.no_out_queues = 1;
1159                                 card->qdio.default_out_queue = 0;
1160                         }
1161                         return 0;
1162                 }
1163                 i++;
1164         }
1165         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1166         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1167         return -ENOENT;
1168 }
1169
1170 static int
1171 qeth_probe_device(struct ccwgroup_device *gdev)
1172 {
1173         struct qeth_card *card;
1174         struct device *dev;
1175         unsigned long flags;
1176         int rc;
1177
1178         QETH_DBF_TEXT(setup, 2, "probedev");
1179
1180         dev = &gdev->dev;
1181         if (!get_device(dev))
1182                 return -ENODEV;
1183
1184         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1185
1186         card = qeth_alloc_card();
1187         if (!card) {
1188                 put_device(dev);
1189                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1190                 return -ENOMEM;
1191         }
1192         card->read.ccwdev  = gdev->cdev[0];
1193         card->write.ccwdev = gdev->cdev[1];
1194         card->data.ccwdev  = gdev->cdev[2];
1195         gdev->dev.driver_data = card;
1196         card->gdev = gdev;
1197         gdev->cdev[0]->handler = qeth_irq;
1198         gdev->cdev[1]->handler = qeth_irq;
1199         gdev->cdev[2]->handler = qeth_irq;
1200
1201         if ((rc = qeth_determine_card_type(card))){
1202                 PRINT_WARN("%s: not a valid card type\n", __func__);
1203                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1204                 put_device(dev);
1205                 qeth_free_card(card);
1206                 return rc;
1207         }
1208         if ((rc = qeth_setup_card(card))){
1209                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1210                 put_device(dev);
1211                 qeth_free_card(card);
1212                 return rc;
1213         }
1214         rc = qeth_create_device_attributes(dev);
1215         if (rc) {
1216                 put_device(dev);
1217                 qeth_free_card(card);
1218                 return rc;
1219         }
1220         /* insert into our internal list */
1221         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1222         list_add_tail(&card->list, &qeth_card_list.list);
1223         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1224         return rc;
1225 }
1226
1227
1228 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1229                                int *length)
1230 {
1231         struct ciw *ciw;
1232         char *rcd_buf;
1233         int ret;
1234         struct qeth_channel *channel = &card->data;
1235         unsigned long flags;
1236
1237         /*
1238          * scan for RCD command in extended SenseID data
1239          */
1240         ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1241         if (!ciw || ciw->cmd == 0)
1242                 return -EOPNOTSUPP;
1243         rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1244         if (!rcd_buf)
1245                 return -ENOMEM;
1246
1247         channel->ccw.cmd_code = ciw->cmd;
1248         channel->ccw.cda = (__u32) __pa (rcd_buf);
1249         channel->ccw.count = ciw->count;
1250         channel->ccw.flags = CCW_FLAG_SLI;
1251         channel->state = CH_STATE_RCD;
1252         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1253         ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1254                                        QETH_RCD_PARM, LPM_ANYPATH, 0,
1255                                        QETH_RCD_TIMEOUT);
1256         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1257         if (!ret)
1258                 wait_event(card->wait_q,
1259                            (channel->state == CH_STATE_RCD_DONE ||
1260                             channel->state == CH_STATE_DOWN));
1261         if (channel->state == CH_STATE_DOWN)
1262                 ret = -EIO;
1263         else
1264                 channel->state = CH_STATE_DOWN;
1265         if (ret) {
1266                 kfree(rcd_buf);
1267                 *buffer = NULL;
1268                 *length = 0;
1269         } else {
1270                 *length = ciw->count;
1271                 *buffer = rcd_buf;
1272         }
1273         return ret;
1274 }
1275
1276 static int
1277 qeth_get_unitaddr(struct qeth_card *card)
1278 {
1279         int length;
1280         char *prcd;
1281         int rc;
1282
1283         QETH_DBF_TEXT(setup, 2, "getunit");
1284         rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1285         if (rc) {
1286                 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1287                           CARD_DDEV_ID(card), rc);
1288                 return rc;
1289         }
1290         card->info.chpid = prcd[30];
1291         card->info.unit_addr2 = prcd[31];
1292         card->info.cula = prcd[63];
1293         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1294                                (prcd[0x11] == _ascebc['M']));
1295         kfree(prcd);
1296         return 0;
1297 }
1298
1299 static void
1300 qeth_init_tokens(struct qeth_card *card)
1301 {
1302         card->token.issuer_rm_w = 0x00010103UL;
1303         card->token.cm_filter_w = 0x00010108UL;
1304         card->token.cm_connection_w = 0x0001010aUL;
1305         card->token.ulp_filter_w = 0x0001010bUL;
1306         card->token.ulp_connection_w = 0x0001010dUL;
1307 }
1308
1309 static inline __u16
1310 raw_devno_from_bus_id(char *id)
1311 {
1312         id += (strlen(id) - 4);
1313         return (__u16) simple_strtoul(id, &id, 16);
1314 }
1315 /**
1316  * setup channel
1317  */
1318 static void
1319 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1320 {
1321         struct qeth_card *card;
1322
1323         QETH_DBF_TEXT(trace, 4, "setupccw");
1324         card = CARD_FROM_CDEV(channel->ccwdev);
1325         if (channel == &card->read)
1326                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1327         else
1328                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1329         channel->ccw.count = len;
1330         channel->ccw.cda = (__u32) __pa(iob);
1331 }
1332
1333 /**
1334  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1335  */
1336 static struct qeth_cmd_buffer *
1337 __qeth_get_buffer(struct qeth_channel *channel)
1338 {
1339         __u8 index;
1340
1341         QETH_DBF_TEXT(trace, 6, "getbuff");
1342         index = channel->io_buf_no;
1343         do {
1344                 if (channel->iob[index].state == BUF_STATE_FREE) {
1345                         channel->iob[index].state = BUF_STATE_LOCKED;
1346                         channel->io_buf_no = (channel->io_buf_no + 1) %
1347                                 QETH_CMD_BUFFER_NO;
1348                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1349                         return channel->iob + index;
1350                 }
1351                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1352         } while(index != channel->io_buf_no);
1353
1354         return NULL;
1355 }
1356
1357 /**
1358  * release command buffer
1359  */
1360 static void
1361 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1362 {
1363         unsigned long flags;
1364
1365         QETH_DBF_TEXT(trace, 6, "relbuff");
1366         spin_lock_irqsave(&channel->iob_lock, flags);
1367         memset(iob->data, 0, QETH_BUFSIZE);
1368         iob->state = BUF_STATE_FREE;
1369         iob->callback = qeth_send_control_data_cb;
1370         iob->rc = 0;
1371         spin_unlock_irqrestore(&channel->iob_lock, flags);
1372 }
1373
1374 static struct qeth_cmd_buffer *
1375 qeth_get_buffer(struct qeth_channel *channel)
1376 {
1377         struct qeth_cmd_buffer *buffer = NULL;
1378         unsigned long flags;
1379
1380         spin_lock_irqsave(&channel->iob_lock, flags);
1381         buffer = __qeth_get_buffer(channel);
1382         spin_unlock_irqrestore(&channel->iob_lock, flags);
1383         return buffer;
1384 }
1385
1386 static struct qeth_cmd_buffer *
1387 qeth_wait_for_buffer(struct qeth_channel *channel)
1388 {
1389         struct qeth_cmd_buffer *buffer;
1390         wait_event(channel->wait_q,
1391                    ((buffer = qeth_get_buffer(channel)) != NULL));
1392         return buffer;
1393 }
1394
1395 static void
1396 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1397 {
1398         int cnt;
1399
1400         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1401                 qeth_release_buffer(channel,&channel->iob[cnt]);
1402         channel->buf_no = 0;
1403         channel->io_buf_no = 0;
1404 }
1405
1406 /**
1407  * start IDX for read and write channel
1408  */
1409 static int
1410 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1411                               void (*idx_reply_cb)(struct qeth_channel *,
1412                                                    struct qeth_cmd_buffer *))
1413 {
1414         struct qeth_cmd_buffer *iob;
1415         unsigned long flags;
1416         int rc;
1417         struct qeth_card *card;
1418
1419         QETH_DBF_TEXT(setup, 2, "idxanswr");
1420         card = CARD_FROM_CDEV(channel->ccwdev);
1421         iob = qeth_get_buffer(channel);
1422         iob->callback = idx_reply_cb;
1423         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1424         channel->ccw.count = QETH_BUFSIZE;
1425         channel->ccw.cda = (__u32) __pa(iob->data);
1426
1427         wait_event(card->wait_q,
1428                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1429         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1430         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1431         rc = ccw_device_start(channel->ccwdev,
1432                               &channel->ccw,(addr_t) iob, 0, 0);
1433         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1434
1435         if (rc) {
1436                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1437                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1438                 atomic_set(&channel->irq_pending, 0);
1439                 wake_up(&card->wait_q);
1440                 return rc;
1441         }
1442         rc = wait_event_interruptible_timeout(card->wait_q,
1443                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1444         if (rc == -ERESTARTSYS)
1445                 return rc;
1446         if (channel->state != CH_STATE_UP){
1447                 rc = -ETIME;
1448                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1449                 qeth_clear_cmd_buffers(channel);
1450         } else
1451                 rc = 0;
1452         return rc;
1453 }
1454
1455 static int
1456 qeth_idx_activate_channel(struct qeth_channel *channel,
1457                            void (*idx_reply_cb)(struct qeth_channel *,
1458                                                 struct qeth_cmd_buffer *))
1459 {
1460         struct qeth_card *card;
1461         struct qeth_cmd_buffer *iob;
1462         unsigned long flags;
1463         __u16 temp;
1464         int rc;
1465
1466         card = CARD_FROM_CDEV(channel->ccwdev);
1467
1468         QETH_DBF_TEXT(setup, 2, "idxactch");
1469
1470         iob = qeth_get_buffer(channel);
1471         iob->callback = idx_reply_cb;
1472         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1473         channel->ccw.count = IDX_ACTIVATE_SIZE;
1474         channel->ccw.cda = (__u32) __pa(iob->data);
1475         if (channel == &card->write) {
1476                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1477                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1478                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1479                 card->seqno.trans_hdr++;
1480         } else {
1481                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1482                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1483                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1484         }
1485         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1486                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1487         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1488                &card->info.func_level,sizeof(__u16));
1489         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1490         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1491         temp = (card->info.cula << 8) + card->info.unit_addr2;
1492         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1493
1494         wait_event(card->wait_q,
1495                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1496         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1497         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1498         rc = ccw_device_start(channel->ccwdev,
1499                               &channel->ccw,(addr_t) iob, 0, 0);
1500         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1501
1502         if (rc) {
1503                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1504                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1505                 atomic_set(&channel->irq_pending, 0);
1506                 wake_up(&card->wait_q);
1507                 return rc;
1508         }
1509         rc = wait_event_interruptible_timeout(card->wait_q,
1510                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1511         if (rc == -ERESTARTSYS)
1512                 return rc;
1513         if (channel->state != CH_STATE_ACTIVATING) {
1514                 PRINT_WARN("qeth: IDX activate timed out!\n");
1515                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1516                 qeth_clear_cmd_buffers(channel);
1517                 return -ETIME;
1518         }
1519         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1520 }
1521
1522 static int
1523 qeth_peer_func_level(int level)
1524 {
1525         if ((level & 0xff) == 8)
1526                 return (level & 0xff) + 0x400;
1527         if (((level >> 8) & 3) == 1)
1528                 return (level & 0xff) + 0x200;
1529         return level;
1530 }
1531
1532 static void
1533 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1534 {
1535         struct qeth_card *card;
1536         __u16 temp;
1537
1538         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1539
1540         if (channel->state == CH_STATE_DOWN) {
1541                 channel->state = CH_STATE_ACTIVATING;
1542                 goto out;
1543         }
1544         card = CARD_FROM_CDEV(channel->ccwdev);
1545
1546         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1547                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1548                         PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1549                                 "adapter exclusively used by another host\n",
1550                                 CARD_WDEV_ID(card));
1551                 else
1552                         PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1553                                 "negative reply\n", CARD_WDEV_ID(card));
1554                 goto out;
1555         }
1556         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1557         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1558                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1559                         "function level mismatch "
1560                         "(sent: 0x%x, received: 0x%x)\n",
1561                         CARD_WDEV_ID(card), card->info.func_level, temp);
1562                 goto out;
1563         }
1564         channel->state = CH_STATE_UP;
1565 out:
1566         qeth_release_buffer(channel, iob);
1567 }
1568
1569 static int
1570 qeth_check_idx_response(unsigned char *buffer)
1571 {
1572         if (!buffer)
1573                 return 0;
1574
1575         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1576         if ((buffer[2] & 0xc0) == 0xc0) {
1577                 PRINT_WARN("received an IDX TERMINATE "
1578                            "with cause code 0x%02x%s\n",
1579                            buffer[4],
1580                            ((buffer[4] == 0x22) ?
1581                             " -- try another portname" : ""));
1582                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1583                 QETH_DBF_TEXT(trace, 2, " idxterm");
1584                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1585                 return -EIO;
1586         }
1587         return 0;
1588 }
1589
1590 static void
1591 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1592 {
1593         struct qeth_card *card;
1594         __u16 temp;
1595
1596         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1597         if (channel->state == CH_STATE_DOWN) {
1598                 channel->state = CH_STATE_ACTIVATING;
1599                 goto out;
1600         }
1601
1602         card = CARD_FROM_CDEV(channel->ccwdev);
1603         if (qeth_check_idx_response(iob->data)) {
1604                         goto out;
1605         }
1606         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1607                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1608                         PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1609                                 "adapter exclusively used by another host\n",
1610                                 CARD_RDEV_ID(card));
1611                 else
1612                         PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1613                                 "negative reply\n", CARD_RDEV_ID(card));
1614                 goto out;
1615         }
1616
1617 /**
1618  * temporary fix for microcode bug
1619  * to revert it,replace OR by AND
1620  */
1621         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1622              (card->info.type == QETH_CARD_TYPE_OSAE) )
1623                 card->info.portname_required = 1;
1624
1625         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1626         if (temp != qeth_peer_func_level(card->info.func_level)) {
1627                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1628                         "level mismatch (sent: 0x%x, received: 0x%x)\n",
1629                         CARD_RDEV_ID(card), card->info.func_level, temp);
1630                 goto out;
1631         }
1632         memcpy(&card->token.issuer_rm_r,
1633                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1634                QETH_MPC_TOKEN_LENGTH);
1635         memcpy(&card->info.mcl_level[0],
1636                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1637         channel->state = CH_STATE_UP;
1638 out:
1639         qeth_release_buffer(channel,iob);
1640 }
1641
1642 static int
1643 qeth_issue_next_read(struct qeth_card *card)
1644 {
1645         int rc;
1646         struct qeth_cmd_buffer *iob;
1647
1648         QETH_DBF_TEXT(trace,5,"issnxrd");
1649         if (card->read.state != CH_STATE_UP)
1650                 return -EIO;
1651         iob = qeth_get_buffer(&card->read);
1652         if (!iob) {
1653                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1654                 return -ENOMEM;
1655         }
1656         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1657         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1658         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1659                               (addr_t) iob, 0, 0);
1660         if (rc) {
1661                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1662                 atomic_set(&card->read.irq_pending, 0);
1663                 qeth_schedule_recovery(card);
1664                 wake_up(&card->wait_q);
1665         }
1666         return rc;
1667 }
1668
1669 static struct qeth_reply *
1670 qeth_alloc_reply(struct qeth_card *card)
1671 {
1672         struct qeth_reply *reply;
1673
1674         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1675         if (reply){
1676                 atomic_set(&reply->refcnt, 1);
1677                 atomic_set(&reply->received, 0);
1678                 reply->card = card;
1679         };
1680         return reply;
1681 }
1682
1683 static void
1684 qeth_get_reply(struct qeth_reply *reply)
1685 {
1686         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1687         atomic_inc(&reply->refcnt);
1688 }
1689
1690 static void
1691 qeth_put_reply(struct qeth_reply *reply)
1692 {
1693         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1694         if (atomic_dec_and_test(&reply->refcnt))
1695                 kfree(reply);
1696 }
1697
1698 static void
1699 qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, struct qeth_card *card)
1700 {
1701         int rc;
1702         int com;
1703         char * ipa_name;
1704
1705         com = cmd->hdr.command;
1706         rc  = cmd->hdr.return_code;
1707         ipa_name = qeth_get_ipa_cmd_name(com);
1708
1709         PRINT_ERR("%s(x%X) for %s returned x%X \"%s\"\n", ipa_name, com,
1710                    QETH_CARD_IFNAME(card), rc, qeth_get_ipa_msg(rc));
1711 }
1712
1713 static struct qeth_ipa_cmd *
1714 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1715 {
1716         struct qeth_ipa_cmd *cmd = NULL;
1717
1718         QETH_DBF_TEXT(trace,5,"chkipad");
1719         if (IS_IPA(iob->data)){
1720                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1721                 if (IS_IPA_REPLY(cmd)) {
1722                         if (cmd->hdr.return_code)
1723                                 qeth_issue_ipa_msg(cmd, card);
1724                         return cmd;
1725                 }
1726                 else {
1727                         switch (cmd->hdr.command) {
1728                         case IPA_CMD_STOPLAN:
1729                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1730                                            "there is a network problem or "
1731                                            "someone pulled the cable or "
1732                                            "disabled the port.\n",
1733                                            QETH_CARD_IFNAME(card),
1734                                            card->info.chpid);
1735                                 card->lan_online = 0;
1736                                 if (card->dev && netif_carrier_ok(card->dev))
1737                                         netif_carrier_off(card->dev);
1738                                 return NULL;
1739                         case IPA_CMD_STARTLAN:
1740                                 PRINT_INFO("Link reestablished on %s "
1741                                            "(CHPID 0x%X). Scheduling "
1742                                            "IP address reset.\n",
1743                                            QETH_CARD_IFNAME(card),
1744                                            card->info.chpid);
1745                                 netif_carrier_on(card->dev);
1746                                 qeth_schedule_recovery(card);
1747                                 return NULL;
1748                         case IPA_CMD_MODCCID:
1749                                 return cmd;
1750                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1751                                 QETH_DBF_TEXT(trace,3, "irla");
1752                                 break;
1753                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1754                                 QETH_DBF_TEXT(trace,3, "urla");
1755                                 break;
1756                         default:
1757                                 PRINT_WARN("Received data is IPA "
1758                                            "but not a reply!\n");
1759                                 break;
1760                         }
1761                 }
1762         }
1763         return cmd;
1764 }
1765
1766 /**
1767  * wake all waiting ipa commands
1768  */
1769 static void
1770 qeth_clear_ipacmd_list(struct qeth_card *card)
1771 {
1772         struct qeth_reply *reply, *r;
1773         unsigned long flags;
1774
1775         QETH_DBF_TEXT(trace, 4, "clipalst");
1776
1777         spin_lock_irqsave(&card->lock, flags);
1778         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1779                 qeth_get_reply(reply);
1780                 reply->rc = -EIO;
1781                 atomic_inc(&reply->received);
1782                 list_del_init(&reply->list);
1783                 wake_up(&reply->wait_q);
1784                 qeth_put_reply(reply);
1785         }
1786         spin_unlock_irqrestore(&card->lock, flags);
1787 }
1788
1789 static void
1790 qeth_send_control_data_cb(struct qeth_channel *channel,
1791                           struct qeth_cmd_buffer *iob)
1792 {
1793         struct qeth_card *card;
1794         struct qeth_reply *reply, *r;
1795         struct qeth_ipa_cmd *cmd;
1796         unsigned long flags;
1797         int keep_reply;
1798
1799         QETH_DBF_TEXT(trace,4,"sndctlcb");
1800
1801         card = CARD_FROM_CDEV(channel->ccwdev);
1802         if (qeth_check_idx_response(iob->data)) {
1803                 qeth_clear_ipacmd_list(card);
1804                 qeth_schedule_recovery(card);
1805                 goto out;
1806         }
1807
1808         cmd = qeth_check_ipa_data(card, iob);
1809         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1810                 goto out;
1811         /*in case of OSN : check if cmd is set */
1812         if (card->info.type == QETH_CARD_TYPE_OSN &&
1813             cmd &&
1814             cmd->hdr.command != IPA_CMD_STARTLAN &&
1815             card->osn_info.assist_cb != NULL) {
1816                 card->osn_info.assist_cb(card->dev, cmd);
1817                 goto out;
1818         }
1819
1820         spin_lock_irqsave(&card->lock, flags);
1821         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1822                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1823                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1824                         qeth_get_reply(reply);
1825                         list_del_init(&reply->list);
1826                         spin_unlock_irqrestore(&card->lock, flags);
1827                         keep_reply = 0;
1828                         if (reply->callback != NULL) {
1829                                 if (cmd) {
1830                                         reply->offset = (__u16)((char*)cmd -
1831                                                                 (char *)iob->data);
1832                                         keep_reply = reply->callback(card,
1833                                                         reply,
1834                                                         (unsigned long)cmd);
1835                                 } else
1836                                         keep_reply = reply->callback(card,
1837                                                         reply,
1838                                                         (unsigned long)iob);
1839                         }
1840                         if (cmd)
1841                                 reply->rc = (u16) cmd->hdr.return_code;
1842                         else if (iob->rc)
1843                                 reply->rc = iob->rc;
1844                         if (keep_reply) {
1845                                 spin_lock_irqsave(&card->lock, flags);
1846                                 list_add_tail(&reply->list,
1847                                               &card->cmd_waiter_list);
1848                                 spin_unlock_irqrestore(&card->lock, flags);
1849                         } else {
1850                                 atomic_inc(&reply->received);
1851                                 wake_up(&reply->wait_q);
1852                         }
1853                         qeth_put_reply(reply);
1854                         goto out;
1855                 }
1856         }
1857         spin_unlock_irqrestore(&card->lock, flags);
1858 out:
1859         memcpy(&card->seqno.pdu_hdr_ack,
1860                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1861                 QETH_SEQ_NO_LENGTH);
1862         qeth_release_buffer(channel,iob);
1863 }
1864
1865 static void
1866 qeth_prepare_control_data(struct qeth_card *card, int len,
1867                           struct qeth_cmd_buffer *iob)
1868 {
1869         qeth_setup_ccw(&card->write,iob->data,len);
1870         iob->callback = qeth_release_buffer;
1871
1872         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1873                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1874         card->seqno.trans_hdr++;
1875         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1876                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1877         card->seqno.pdu_hdr++;
1878         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1879                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1880         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1881 }
1882
1883 static int
1884 qeth_send_control_data(struct qeth_card *card, int len,
1885                        struct qeth_cmd_buffer *iob,
1886                        int (*reply_cb)
1887                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1888                        void *reply_param)
1889
1890 {
1891         int rc;
1892         unsigned long flags;
1893         struct qeth_reply *reply = NULL;
1894         unsigned long timeout;
1895
1896         QETH_DBF_TEXT(trace, 2, "sendctl");
1897
1898         reply = qeth_alloc_reply(card);
1899         if (!reply) {
1900                 PRINT_WARN("Could no alloc qeth_reply!\n");
1901                 return -ENOMEM;
1902         }
1903         reply->callback = reply_cb;
1904         reply->param = reply_param;
1905         if (card->state == CARD_STATE_DOWN)
1906                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1907         else
1908                 reply->seqno = card->seqno.ipa++;
1909         init_waitqueue_head(&reply->wait_q);
1910         spin_lock_irqsave(&card->lock, flags);
1911         list_add_tail(&reply->list, &card->cmd_waiter_list);
1912         spin_unlock_irqrestore(&card->lock, flags);
1913         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1914
1915         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1916         qeth_prepare_control_data(card, len, iob);
1917
1918         if (IS_IPA(iob->data))
1919                 timeout = jiffies + QETH_IPA_TIMEOUT;
1920         else
1921                 timeout = jiffies + QETH_TIMEOUT;
1922
1923         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1924         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1925         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1926                               (addr_t) iob, 0, 0);
1927         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1928         if (rc){
1929                 PRINT_WARN("qeth_send_control_data: "
1930                            "ccw_device_start rc = %i\n", rc);
1931                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1932                 spin_lock_irqsave(&card->lock, flags);
1933                 list_del_init(&reply->list);
1934                 qeth_put_reply(reply);
1935                 spin_unlock_irqrestore(&card->lock, flags);
1936                 qeth_release_buffer(iob->channel, iob);
1937                 atomic_set(&card->write.irq_pending, 0);
1938                 wake_up(&card->wait_q);
1939                 return rc;
1940         }
1941         while (!atomic_read(&reply->received)) {
1942                 if (time_after(jiffies, timeout)) {
1943                         spin_lock_irqsave(&reply->card->lock, flags);
1944                         list_del_init(&reply->list);
1945                         spin_unlock_irqrestore(&reply->card->lock, flags);
1946                         reply->rc = -ETIME;
1947                         atomic_inc(&reply->received);
1948                         wake_up(&reply->wait_q);
1949                 }
1950                 cpu_relax();
1951         };
1952         rc = reply->rc;
1953         qeth_put_reply(reply);
1954         return rc;
1955 }
1956
1957 static int
1958 qeth_osn_send_control_data(struct qeth_card *card, int len,
1959                            struct qeth_cmd_buffer *iob)
1960 {
1961         unsigned long flags;
1962         int rc = 0;
1963
1964         QETH_DBF_TEXT(trace, 5, "osndctrd");
1965
1966         wait_event(card->wait_q,
1967                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1968         qeth_prepare_control_data(card, len, iob);
1969         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1970         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1971         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1972                               (addr_t) iob, 0, 0);
1973         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1974         if (rc){
1975                 PRINT_WARN("qeth_osn_send_control_data: "
1976                            "ccw_device_start rc = %i\n", rc);
1977                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1978                 qeth_release_buffer(iob->channel, iob);
1979                 atomic_set(&card->write.irq_pending, 0);
1980                 wake_up(&card->wait_q);
1981         }
1982         return rc;
1983 }
1984
1985 static inline void
1986 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1987                      char prot_type)
1988 {
1989         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1990         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1991         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1992                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1993 }
1994
1995 static int
1996 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1997                       int data_len)
1998 {
1999         u16 s1, s2;
2000
2001         QETH_DBF_TEXT(trace,4,"osndipa");
2002
2003         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
2004         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
2005         s2 = (u16)data_len;
2006         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
2007         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
2008         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
2009         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
2010         return qeth_osn_send_control_data(card, s1, iob);
2011 }
2012
2013 static int
2014 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2015                   int (*reply_cb)
2016                   (struct qeth_card *,struct qeth_reply*, unsigned long),
2017                   void *reply_param)
2018 {
2019         int rc;
2020         char prot_type;
2021
2022         QETH_DBF_TEXT(trace,4,"sendipa");
2023
2024         if (card->options.layer2)
2025                 if (card->info.type == QETH_CARD_TYPE_OSN)
2026                         prot_type = QETH_PROT_OSN2;
2027                 else
2028                         prot_type = QETH_PROT_LAYER2;
2029         else
2030                 prot_type = QETH_PROT_TCPIP;
2031         qeth_prepare_ipa_cmd(card,iob,prot_type);
2032         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
2033                                     reply_cb, reply_param);
2034         return rc;
2035 }
2036
2037
2038 static int
2039 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2040                   unsigned long data)
2041 {
2042         struct qeth_cmd_buffer *iob;
2043
2044         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2045
2046         iob = (struct qeth_cmd_buffer *) data;
2047         memcpy(&card->token.cm_filter_r,
2048                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2049                QETH_MPC_TOKEN_LENGTH);
2050         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2051         return 0;
2052 }
2053
2054 static int
2055 qeth_cm_enable(struct qeth_card *card)
2056 {
2057         int rc;
2058         struct qeth_cmd_buffer *iob;
2059
2060         QETH_DBF_TEXT(setup,2,"cmenable");
2061
2062         iob = qeth_wait_for_buffer(&card->write);
2063         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2064         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2065                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2066         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2067                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2068
2069         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2070                                     qeth_cm_enable_cb, NULL);
2071         return rc;
2072 }
2073
2074 static int
2075 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2076                  unsigned long data)
2077 {
2078
2079         struct qeth_cmd_buffer *iob;
2080
2081         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2082
2083         iob = (struct qeth_cmd_buffer *) data;
2084         memcpy(&card->token.cm_connection_r,
2085                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2086                QETH_MPC_TOKEN_LENGTH);
2087         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2088         return 0;
2089 }
2090
2091 static int
2092 qeth_cm_setup(struct qeth_card *card)
2093 {
2094         int rc;
2095         struct qeth_cmd_buffer *iob;
2096
2097         QETH_DBF_TEXT(setup,2,"cmsetup");
2098
2099         iob = qeth_wait_for_buffer(&card->write);
2100         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2101         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2102                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2103         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2104                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2105         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2106                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2107         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2108                                     qeth_cm_setup_cb, NULL);
2109         return rc;
2110
2111 }
2112
2113 static int
2114 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2115                    unsigned long data)
2116 {
2117
2118         __u16 mtu, framesize;
2119         __u16 len;
2120         __u8 link_type;
2121         struct qeth_cmd_buffer *iob;
2122
2123         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2124
2125         iob = (struct qeth_cmd_buffer *) data;
2126         memcpy(&card->token.ulp_filter_r,
2127                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2128                QETH_MPC_TOKEN_LENGTH);
2129         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2130                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2131                 mtu = qeth_get_mtu_outof_framesize(framesize);
2132                 if (!mtu) {
2133                         iob->rc = -EINVAL;
2134                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2135                         return 0;
2136                 }
2137                 card->info.max_mtu = mtu;
2138                 card->info.initial_mtu = mtu;
2139                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2140         } else {
2141                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2142                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2143                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2144         }
2145
2146         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2147         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2148                 memcpy(&link_type,
2149                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2150                 card->info.link_type = link_type;
2151         } else
2152                 card->info.link_type = 0;
2153         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2154         return 0;
2155 }
2156
2157 static int
2158 qeth_ulp_enable(struct qeth_card *card)
2159 {
2160         int rc;
2161         char prot_type;
2162         struct qeth_cmd_buffer *iob;
2163
2164         /*FIXME: trace view callbacks*/
2165         QETH_DBF_TEXT(setup,2,"ulpenabl");
2166
2167         iob = qeth_wait_for_buffer(&card->write);
2168         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2169
2170         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2171                 (__u8) card->info.portno;
2172         if (card->options.layer2)
2173                 if (card->info.type == QETH_CARD_TYPE_OSN)
2174                         prot_type = QETH_PROT_OSN2;
2175                 else
2176                         prot_type = QETH_PROT_LAYER2;
2177         else
2178                 prot_type = QETH_PROT_TCPIP;
2179
2180         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2181         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2182                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2183         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2184                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2185         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2186                card->info.portname, 9);
2187         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2188                                     qeth_ulp_enable_cb, NULL);
2189         return rc;
2190
2191 }
2192
2193 static int
2194 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2195                   unsigned long data)
2196 {
2197         struct qeth_cmd_buffer *iob;
2198
2199         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2200
2201         iob = (struct qeth_cmd_buffer *) data;
2202         memcpy(&card->token.ulp_connection_r,
2203                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2204                QETH_MPC_TOKEN_LENGTH);
2205         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2206         return 0;
2207 }
2208
2209 static int
2210 qeth_ulp_setup(struct qeth_card *card)
2211 {
2212         int rc;
2213         __u16 temp;
2214         struct qeth_cmd_buffer *iob;
2215         struct ccw_dev_id dev_id;
2216
2217         QETH_DBF_TEXT(setup,2,"ulpsetup");
2218
2219         iob = qeth_wait_for_buffer(&card->write);
2220         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2221
2222         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2223                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2224         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2225                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2226         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2227                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2228
2229         ccw_device_get_id(CARD_DDEV(card), &dev_id);
2230         memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2231         temp = (card->info.cula << 8) + card->info.unit_addr2;
2232         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2233         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2234                                     qeth_ulp_setup_cb, NULL);
2235         return rc;
2236 }
2237
2238 static inline int
2239 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2240                        unsigned int siga_error, const char *dbftext)
2241 {
2242         if (qdio_error || siga_error) {
2243                 QETH_DBF_TEXT(trace, 2, dbftext);
2244                 QETH_DBF_TEXT(qerr, 2, dbftext);
2245                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2246                                buf->element[15].flags & 0xff);
2247                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2248                                buf->element[14].flags & 0xff);
2249                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2250                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2251                 return 1;
2252         }
2253         return 0;
2254 }
2255
2256 static struct sk_buff *
2257 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2258 {
2259         struct sk_buff* skb;
2260         int add_len;
2261
2262         add_len = 0;
2263         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2264                 add_len = sizeof(struct qeth_hdr);
2265 #ifdef CONFIG_QETH_VLAN
2266         else
2267                 add_len = VLAN_HLEN;
2268 #endif
2269         skb = dev_alloc_skb(length + add_len);
2270         if (skb && add_len)
2271                 skb_reserve(skb, add_len);
2272         return skb;
2273 }
2274
2275 static inline int
2276 qeth_create_skb_frag(struct qdio_buffer_element *element,
2277                      struct sk_buff **pskb,
2278                      int offset, int *pfrag, int data_len)
2279 {
2280         struct page *page = virt_to_page(element->addr);
2281         if (*pfrag == 0) {
2282                 /* the upper protocol layers assume that there is data in the
2283                  * skb itself. Copy a small amount (64 bytes) to make them
2284                  * happy. */
2285                 *pskb = dev_alloc_skb(64 + QETH_FAKE_LL_LEN_ETH);
2286                 if (!(*pskb))
2287                         return -ENOMEM;
2288                 skb_reserve(*pskb, QETH_FAKE_LL_LEN_ETH);
2289                 if (data_len <= 64) {
2290                         memcpy(skb_put(*pskb, data_len), element->addr + offset,
2291                                 data_len);
2292                 } else {
2293                         get_page(page);
2294                         memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
2295                         skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
2296                                 data_len - 64);
2297                         (*pskb)->data_len += data_len - 64;
2298                         (*pskb)->len      += data_len - 64;
2299                         (*pskb)->truesize += data_len - 64;
2300                 }
2301         } else {
2302                 get_page(page);
2303                 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
2304                 (*pskb)->data_len += data_len;
2305                 (*pskb)->len      += data_len;
2306                 (*pskb)->truesize += data_len;
2307         }
2308         (*pfrag)++;
2309         return 0;
2310 }
2311
2312 static inline struct qeth_buffer_pool_entry *
2313 qeth_find_free_buffer_pool_entry(struct qeth_card *card)
2314 {
2315         struct list_head *plh;
2316         struct qeth_buffer_pool_entry *entry;
2317         int i, free;
2318         struct page *page;
2319
2320         if (list_empty(&card->qdio.in_buf_pool.entry_list))
2321                 return NULL;
2322
2323         list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2324                 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2325                 free = 1;
2326                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2327                         if (page_count(virt_to_page(entry->elements[i])) > 1) {
2328                                 free = 0;
2329                                 break;
2330                         }
2331                 }
2332                 if (free) {
2333                         list_del_init(&entry->list);
2334                         return entry;
2335                 }
2336         }
2337
2338         /* no free buffer in pool so take first one and swap pages */
2339         entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2340                         struct qeth_buffer_pool_entry, list);
2341         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2342                 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2343                         page = alloc_page(GFP_ATOMIC|GFP_DMA);
2344                         if (!page) {
2345                                 return NULL;
2346                         } else {
2347                                 free_page((unsigned long)entry->elements[i]);
2348                                 entry->elements[i] = page_address(page);
2349                                 if (card->options.performance_stats)
2350                                         card->perf_stats.sg_alloc_page_rx++;
2351                         }
2352                 }
2353         }
2354         list_del_init(&entry->list);
2355         return entry;
2356 }
2357
2358 static struct sk_buff *
2359 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2360                   struct qdio_buffer_element **__element, int *__offset,
2361                   struct qeth_hdr **hdr)
2362 {
2363         struct qdio_buffer_element *element = *__element;
2364         int offset = *__offset;
2365         struct sk_buff *skb = NULL;
2366         int skb_len;
2367         void *data_ptr;
2368         int data_len;
2369         int use_rx_sg = 0;
2370         int frag = 0;
2371
2372         QETH_DBF_TEXT(trace,6,"nextskb");
2373         /* qeth_hdr must not cross element boundaries */
2374         if (element->length < offset + sizeof(struct qeth_hdr)){
2375                 if (qeth_is_last_sbale(element))
2376                         return NULL;
2377                 element++;
2378                 offset = 0;
2379                 if (element->length < sizeof(struct qeth_hdr))
2380                         return NULL;
2381         }
2382         *hdr = element->addr + offset;
2383
2384         offset += sizeof(struct qeth_hdr);
2385         if (card->options.layer2)
2386                 if (card->info.type == QETH_CARD_TYPE_OSN)
2387                         skb_len = (*hdr)->hdr.osn.pdu_length;
2388                 else
2389                         skb_len = (*hdr)->hdr.l2.pkt_length;
2390         else
2391                 skb_len = (*hdr)->hdr.l3.length;
2392
2393         if (!skb_len)
2394                 return NULL;
2395         if ((skb_len >= card->options.rx_sg_cb) &&
2396             (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
2397             (!atomic_read(&card->force_alloc_skb))) {
2398                 use_rx_sg = 1;
2399         } else {
2400                 if (card->options.fake_ll) {
2401                         if (card->dev->type == ARPHRD_IEEE802_TR) {
2402                                 if (!(skb = qeth_get_skb(skb_len +
2403                                                 QETH_FAKE_LL_LEN_TR, *hdr)))
2404                                         goto no_mem;
2405                                 skb_reserve(skb, QETH_FAKE_LL_LEN_TR);
2406                         } else {
2407                                 if (!(skb = qeth_get_skb(skb_len +
2408                                                 QETH_FAKE_LL_LEN_ETH, *hdr)))
2409                                         goto no_mem;
2410                                 skb_reserve(skb, QETH_FAKE_LL_LEN_ETH);
2411                         }
2412                 } else {
2413                         skb = qeth_get_skb(skb_len, *hdr);
2414                         if (!skb)
2415                                 goto no_mem;
2416                 }
2417         }
2418
2419         data_ptr = element->addr + offset;
2420         while (skb_len) {
2421                 data_len = min(skb_len, (int)(element->length - offset));
2422                 if (data_len) {
2423                         if (use_rx_sg) {
2424                                 if (qeth_create_skb_frag(element, &skb, offset,
2425                                     &frag, data_len))
2426                                         goto no_mem;
2427                         } else {
2428                                 memcpy(skb_put(skb, data_len), data_ptr,
2429                                         data_len);
2430                         }
2431                 }
2432                 skb_len -= data_len;
2433                 if (skb_len){
2434                         if (qeth_is_last_sbale(element)){
2435                                 QETH_DBF_TEXT(trace,4,"unexeob");
2436                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2437                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2438                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2439                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2440                                 dev_kfree_skb_any(skb);
2441                                 card->stats.rx_errors++;
2442                                 return NULL;
2443                         }
2444                         element++;
2445                         offset = 0;
2446                         data_ptr = element->addr;
2447                 } else {
2448                         offset += data_len;
2449                 }
2450         }
2451         *__element = element;
2452         *__offset = offset;
2453         if (use_rx_sg && card->options.performance_stats) {
2454                 card->perf_stats.sg_skbs_rx++;
2455                 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
2456         }
2457         return skb;
2458 no_mem:
2459         if (net_ratelimit()){
2460                 PRINT_WARN("No memory for packet received on %s.\n",
2461                            QETH_CARD_IFNAME(card));
2462                 QETH_DBF_TEXT(trace,2,"noskbmem");
2463                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2464         }
2465         card->stats.rx_dropped++;
2466         return NULL;
2467 }
2468
2469 static __be16
2470 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2471 {
2472         struct qeth_card *card;
2473         struct ethhdr *eth;
2474
2475         QETH_DBF_TEXT(trace,6,"typtrans");
2476
2477         card = (struct qeth_card *)dev->priv;
2478 #ifdef CONFIG_TR
2479         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2480             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2481                 return tr_type_trans(skb,dev);
2482 #endif /* CONFIG_TR */
2483         skb_reset_mac_header(skb);
2484         skb_pull(skb, ETH_HLEN );
2485         eth = eth_hdr(skb);
2486
2487         if (*eth->h_dest & 1) {
2488                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2489                         skb->pkt_type = PACKET_BROADCAST;
2490                 else
2491                         skb->pkt_type = PACKET_MULTICAST;
2492         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2493                 skb->pkt_type = PACKET_OTHERHOST;
2494
2495         if (ntohs(eth->h_proto) >= 1536)
2496                 return eth->h_proto;
2497         if (*(unsigned short *) (skb->data) == 0xFFFF)
2498                 return htons(ETH_P_802_3);
2499         return htons(ETH_P_802_2);
2500 }
2501
2502 static void
2503 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2504                          struct qeth_hdr *hdr)
2505 {
2506         struct trh_hdr *fake_hdr;
2507         struct trllc *fake_llc;
2508         struct iphdr *ip_hdr;
2509
2510         QETH_DBF_TEXT(trace,5,"skbfktr");
2511         skb_set_mac_header(skb, (int)-QETH_FAKE_LL_LEN_TR);
2512         /* this is a fake ethernet header */
2513         fake_hdr = tr_hdr(skb);
2514
2515         /* the destination MAC address */
2516         switch (skb->pkt_type){
2517         case PACKET_MULTICAST:
2518                 switch (skb->protocol){
2519 #ifdef CONFIG_QETH_IPV6
2520                 case __constant_htons(ETH_P_IPV6):
2521                         ndisc_mc_map((struct in6_addr *)
2522                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2523                                      fake_hdr->daddr, card->dev, 0);
2524                         break;
2525 #endif /* CONFIG_QETH_IPV6 */
2526                 case __constant_htons(ETH_P_IP):
2527                         ip_hdr = (struct iphdr *)skb->data;
2528                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2529                         break;
2530                 default:
2531                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2532                 }
2533                 break;
2534         case PACKET_BROADCAST:
2535                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2536                 break;
2537         default:
2538                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2539         }
2540         /* the source MAC address */
2541         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2542                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2543         else
2544                 memset(fake_hdr->saddr, 0, TR_ALEN);
2545         fake_hdr->rcf=0;
2546         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2547         fake_llc->dsap = EXTENDED_SAP;
2548         fake_llc->ssap = EXTENDED_SAP;
2549         fake_llc->llc  = UI_CMD;
2550         fake_llc->protid[0] = 0;
2551         fake_llc->protid[1] = 0;
2552         fake_llc->protid[2] = 0;
2553         fake_llc->ethertype = ETH_P_IP;
2554 }
2555
2556 static void
2557 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2558                          struct qeth_hdr *hdr)
2559 {
2560         struct ethhdr *fake_hdr;
2561         struct iphdr *ip_hdr;
2562
2563         QETH_DBF_TEXT(trace,5,"skbfketh");
2564         skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
2565         /* this is a fake ethernet header */
2566         fake_hdr = eth_hdr(skb);
2567
2568         /* the destination MAC address */
2569         switch (skb->pkt_type){
2570         case PACKET_MULTICAST:
2571                 switch (skb->protocol){
2572 #ifdef CONFIG_QETH_IPV6
2573                 case __constant_htons(ETH_P_IPV6):
2574                         ndisc_mc_map((struct in6_addr *)
2575                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2576                                      fake_hdr->h_dest, card->dev, 0);
2577                         break;
2578 #endif /* CONFIG_QETH_IPV6 */
2579                 case __constant_htons(ETH_P_IP):
2580                         ip_hdr = (struct iphdr *)skb->data;
2581                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2582                         break;
2583                 default:
2584                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2585                 }
2586                 break;
2587         case PACKET_BROADCAST:
2588                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2589                 break;
2590         default:
2591                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2592         }
2593         /* the source MAC address */
2594         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2595                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2596         else
2597                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2598         /* the protocol */
2599         fake_hdr->h_proto = skb->protocol;
2600 }
2601
2602 static inline void
2603 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2604                         struct qeth_hdr *hdr)
2605 {
2606         if (card->dev->type == ARPHRD_IEEE802_TR)
2607                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2608         else
2609                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2610 }
2611
2612 static inline void
2613 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2614                         struct qeth_hdr *hdr)
2615 {
2616         skb->pkt_type = PACKET_HOST;
2617         skb->protocol = qeth_type_trans(skb, skb->dev);
2618         if (card->options.checksum_type == NO_CHECKSUMMING)
2619                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2620         else
2621                 skb->ip_summed = CHECKSUM_NONE;
2622         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2623 }
2624
2625 static __u16
2626 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2627                  struct qeth_hdr *hdr)
2628 {
2629         unsigned short vlan_id = 0;
2630 #ifdef CONFIG_QETH_IPV6
2631         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2632                 skb->pkt_type = PACKET_HOST;
2633                 skb->protocol = qeth_type_trans(skb, card->dev);
2634                 return 0;
2635         }
2636 #endif /* CONFIG_QETH_IPV6 */
2637         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2638                               ETH_P_IP);
2639         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2640         case QETH_CAST_UNICAST:
2641                 skb->pkt_type = PACKET_HOST;
2642                 break;
2643         case QETH_CAST_MULTICAST:
2644                 skb->pkt_type = PACKET_MULTICAST;
2645                 card->stats.multicast++;
2646                 break;
2647         case QETH_CAST_BROADCAST:
2648                 skb->pkt_type = PACKET_BROADCAST;
2649                 card->stats.multicast++;
2650                 break;
2651         case QETH_CAST_ANYCAST:
2652         case QETH_CAST_NOCAST:
2653         default:
2654                 skb->pkt_type = PACKET_HOST;
2655         }
2656
2657         if (hdr->hdr.l3.ext_flags &
2658             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2659                 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2660                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2661         }
2662
2663         if (card->options.fake_ll)
2664                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2665         else
2666                 skb_reset_mac_header(skb);
2667         skb->ip_summed = card->options.checksum_type;
2668         if (card->options.checksum_type == HW_CHECKSUMMING){
2669                 if ( (hdr->hdr.l3.ext_flags &
2670                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2671                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2672                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2673                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2674                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2675                 else
2676                         skb->ip_summed = SW_CHECKSUMMING;
2677         }
2678         return vlan_id;
2679 }
2680
2681 static void
2682 qeth_process_inbound_buffer(struct qeth_card *card,
2683                             struct qeth_qdio_buffer *buf, int index)
2684 {
2685         struct qdio_buffer_element *element;
2686         struct sk_buff *skb;
2687         struct qeth_hdr *hdr;
2688         int offset;
2689         int rxrc;
2690         __u16 vlan_tag = 0;
2691
2692         /* get first element of current buffer */
2693         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2694         offset = 0;
2695         if (card->options.performance_stats)
2696                 card->perf_stats.bufs_rec++;
2697         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2698                                        &offset, &hdr))) {
2699                 skb->dev = card->dev;
2700                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2701                         qeth_layer2_rebuild_skb(card, skb, hdr);
2702                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2703                         vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2704                 else { /*in case of OSN*/
2705                         skb_push(skb, sizeof(struct qeth_hdr));
2706                         skb_copy_to_linear_data(skb, hdr,
2707                                                 sizeof(struct qeth_hdr));
2708                 }
2709                 /* is device UP ? */
2710                 if (!(card->dev->flags & IFF_UP)){
2711                         dev_kfree_skb_any(skb);
2712                         continue;
2713                 }
2714                 if (card->info.type == QETH_CARD_TYPE_OSN)
2715                         rxrc = card->osn_info.data_cb(skb);
2716                 else
2717 #ifdef CONFIG_QETH_VLAN
2718                 if (vlan_tag)
2719                         if (card->vlangrp)
2720                                 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2721                         else {
2722                                 dev_kfree_skb_any(skb);
2723                                 continue;
2724                         }
2725                 else
2726 #endif
2727                         rxrc = netif_rx(skb);
2728                 card->dev->last_rx = jiffies;
2729                 card->stats.rx_packets++;
2730                 card->stats.rx_bytes += skb->len;
2731         }
2732 }
2733
2734 static int
2735 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2736 {
2737         struct qeth_buffer_pool_entry *pool_entry;
2738         int i;
2739
2740         pool_entry = qeth_find_free_buffer_pool_entry(card);
2741         if (!pool_entry)
2742                 return 1;
2743         /*
2744          * since the buffer is accessed only from the input_tasklet
2745          * there shouldn't be a need to synchronize; also, since we use
2746          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2747          * buffers
2748          */
2749         BUG_ON(!pool_entry);
2750
2751         buf->pool_entry = pool_entry;
2752         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2753                 buf->buffer->element[i].length = PAGE_SIZE;
2754                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2755                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2756                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2757                 else
2758                         buf->buffer->element[i].flags = 0;
2759         }
2760         buf->state = QETH_QDIO_BUF_EMPTY;
2761         return 0;
2762 }
2763
2764 static void
2765 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2766                          struct qeth_qdio_out_buffer *buf)
2767 {
2768         int i;
2769         struct sk_buff *skb;
2770
2771         /* is PCI flag set on buffer? */
2772         if (buf->buffer->element[0].flags & 0x40)
2773                 atomic_dec(&queue->set_pci_flags_count);
2774
2775         while ((skb = skb_dequeue(&buf->skb_list))){
2776                 atomic_dec(&skb->users);
2777                 dev_kfree_skb_any(skb);
2778         }
2779         qeth_eddp_buf_release_contexts(buf);
2780         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2781                 buf->buffer->element[i].length = 0;
2782                 buf->buffer->element[i].addr = NULL;
2783                 buf->buffer->element[i].flags = 0;
2784         }
2785         buf->next_element_to_fill = 0;
2786         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2787 }
2788
2789 static void
2790 qeth_queue_input_buffer(struct qeth_card *card, int index)
2791 {
2792         struct qeth_qdio_q *queue = card->qdio.in_q;
2793         int count;
2794         int i;
2795         int rc;
2796         int newcount = 0;
2797
2798         QETH_DBF_TEXT(trace,6,"queinbuf");
2799         count = (index < queue->next_buf_to_init)?
2800                 card->qdio.in_buf_pool.buf_count -
2801                 (queue->next_buf_to_init - index) :
2802                 card->qdio.in_buf_pool.buf_count -
2803                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2804         /* only requeue at a certain threshold to avoid SIGAs */
2805         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2806                 for (i = queue->next_buf_to_init;
2807                      i < queue->next_buf_to_init + count; ++i) {
2808                         if (qeth_init_input_buffer(card,
2809                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2810                                 break;
2811                         } else {
2812                                 newcount++;
2813                         }
2814                 }
2815
2816                 if (newcount < count) {
2817                         /* we are in memory shortage so we switch back to
2818                            traditional skb allocation and drop packages */
2819                         if (!atomic_read(&card->force_alloc_skb) &&
2820                             net_ratelimit())
2821                                 PRINT_WARN("Switch to alloc skb\n");
2822                         atomic_set(&card->force_alloc_skb, 3);
2823                         count = newcount;
2824                 } else {
2825                         if ((atomic_read(&card->force_alloc_skb) == 1) &&
2826                             net_ratelimit())
2827                                 PRINT_WARN("Switch to sg\n");
2828                         atomic_add_unless(&card->force_alloc_skb, -1, 0);
2829                 }
2830
2831                 /*
2832                  * according to old code it should be avoided to requeue all
2833                  * 128 buffers in order to benefit from PCI avoidance.
2834                  * this function keeps at least one buffer (the buffer at
2835                  * 'index') un-requeued -> this buffer is the first buffer that
2836                  * will be requeued the next time
2837                  */
2838                 if (card->options.performance_stats) {
2839                         card->perf_stats.inbound_do_qdio_cnt++;
2840                         card->perf_stats.inbound_do_qdio_start_time =
2841                                 qeth_get_micros();
2842                 }
2843                 rc = do_QDIO(CARD_DDEV(card),
2844                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2845                              0, queue->next_buf_to_init, count, NULL);
2846                 if (card->options.performance_stats)
2847                         card->perf_stats.inbound_do_qdio_time +=
2848                                 qeth_get_micros() -
2849                                 card->perf_stats.inbound_do_qdio_start_time;
2850                 if (rc){
2851                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2852                                    "return %i (device %s).\n",
2853                                    rc, CARD_DDEV_ID(card));
2854                         QETH_DBF_TEXT(trace,2,"qinberr");
2855                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2856                 }
2857                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2858                                           QDIO_MAX_BUFFERS_PER_Q;
2859         }
2860 }
2861
2862 static inline void
2863 qeth_put_buffer_pool_entry(struct qeth_card *card,
2864                            struct qeth_buffer_pool_entry *entry)
2865 {
2866         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2867         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2868 }
2869
2870 static void
2871 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2872                         unsigned int qdio_err, unsigned int siga_err,
2873                         unsigned int queue, int first_element, int count,
2874                         unsigned long card_ptr)
2875 {
2876         struct net_device *net_dev;
2877         struct qeth_card *card;
2878         struct qeth_qdio_buffer *buffer;
2879         int index;
2880         int i;
2881
2882         QETH_DBF_TEXT(trace, 6, "qdinput");
2883         card = (struct qeth_card *) card_ptr;
2884         net_dev = card->dev;
2885         if (card->options.performance_stats) {
2886                 card->perf_stats.inbound_cnt++;
2887                 card->perf_stats.inbound_start_time = qeth_get_micros();
2888         }
2889         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2890                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2891                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2892                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2893                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2894                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2895                         qeth_schedule_recovery(card);
2896                         return;
2897                 }
2898         }
2899         for (i = first_element; i < (first_element + count); ++i) {
2900                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2901                 buffer = &card->qdio.in_q->bufs[index];
2902                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2903                       qeth_check_qdio_errors(buffer->buffer,
2904                                              qdio_err, siga_err,"qinerr")))
2905                         qeth_process_inbound_buffer(card, buffer, index);
2906                 /* clear buffer and give back to hardware */
2907                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2908                 qeth_queue_input_buffer(card, index);
2909         }
2910         if (card->options.performance_stats)
2911                 card->perf_stats.inbound_time += qeth_get_micros() -
2912                         card->perf_stats.inbound_start_time;
2913 }
2914
2915 static int
2916 qeth_handle_send_error(struct qeth_card *card,
2917                        struct qeth_qdio_out_buffer *buffer,
2918                        unsigned int qdio_err, unsigned int siga_err)
2919 {
2920         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2921         int cc = siga_err & 3;
2922
2923         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2924         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2925         switch (cc) {
2926         case 0:
2927                 if (qdio_err){
2928                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2929                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2930                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2931                                        (u16)qdio_err, (u8)sbalf15);
2932                         return QETH_SEND_ERROR_LINK_FAILURE;
2933                 }
2934                 return QETH_SEND_ERROR_NONE;
2935         case 2:
2936                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2937                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2938                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2939                         return QETH_SEND_ERROR_KICK_IT;
2940                 }
2941                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2942                         return QETH_SEND_ERROR_RETRY;
2943                 return QETH_SEND_ERROR_LINK_FAILURE;
2944                 /* look at qdio_error and sbalf 15 */
2945         case 1:
2946                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2947                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2948                 return QETH_SEND_ERROR_LINK_FAILURE;
2949         case 3:
2950         default:
2951                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2952                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2953                 return QETH_SEND_ERROR_KICK_IT;
2954         }
2955 }
2956
2957 void
2958 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2959                    int index, int count)
2960 {
2961         struct qeth_qdio_out_buffer *buf;
2962         int rc;
2963         int i;
2964         unsigned int qdio_flags;
2965
2966         QETH_DBF_TEXT(trace, 6, "flushbuf");
2967
2968         for (i = index; i < index + count; ++i) {
2969                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2970                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2971                                 SBAL_FLAGS_LAST_ENTRY;
2972
2973                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2974                         continue;
2975
2976                 if (!queue->do_pack){
2977                         if ((atomic_read(&queue->used_buffers) >=
2978                                 (QETH_HIGH_WATERMARK_PACK -
2979                                  QETH_WATERMARK_PACK_FUZZ)) &&
2980                             !atomic_read(&queue->set_pci_flags_count)){
2981                                 /* it's likely that we'll go to packing
2982                                  * mode soon */
2983                                 atomic_inc(&queue->set_pci_flags_count);
2984                                 buf->buffer->element[0].flags |= 0x40;
2985                         }
2986                 } else {
2987                         if (!atomic_read(&queue->set_pci_flags_count)){
2988                                 /*
2989                                  * there's no outstanding PCI any more, so we
2990                                  * have to request a PCI to be sure that the PCI
2991                                  * will wake at some time in the future then we
2992                                  * can flush packed buffers that might still be
2993                                  * hanging around, which can happen if no
2994                                  * further send was requested by the stack
2995                                  */
2996                                 atomic_inc(&queue->set_pci_flags_count);
2997                                 buf->buffer->element[0].flags |= 0x40;
2998                         }
2999                 }
3000         }
3001
3002         queue->card->dev->trans_start = jiffies;
3003         if (queue->card->options.performance_stats) {
3004                 queue->card->perf_stats.outbound_do_qdio_cnt++;
3005                 queue->card->perf_stats.outbound_do_qdio_start_time =
3006                         qeth_get_micros();
3007         }
3008         qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
3009         if (under_int)
3010                 qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT;
3011         if (atomic_read(&queue->set_pci_flags_count))
3012                 qdio_flags |= QDIO_FLAG_PCI_OUT;
3013         rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
3014                      queue->queue_no, index, count, NULL);
3015         if (queue->card->options.performance_stats)
3016                 queue->card->perf_stats.outbound_do_qdio_time +=
3017                         qeth_get_micros() -
3018                         queue->card->perf_stats.outbound_do_qdio_start_time;
3019         if (rc){
3020                 QETH_DBF_TEXT(trace, 2, "flushbuf");
3021                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
3022                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
3023                 queue->card->stats.tx_errors += count;
3024                 /* this must not happen under normal circumstances. if it
3025                  * happens something is really wrong -> recover */
3026                 qeth_schedule_recovery(queue->card);
3027                 return;
3028         }
3029         atomic_add(count, &queue->used_buffers);
3030         if (queue->card->options.performance_stats)
3031                 queue->card->perf_stats.bufs_sent += count;
3032 }
3033
3034 /*
3035  * Switched to packing state if the number of used buffers on a queue
3036  * reaches a certain limit.
3037  */
3038 static void
3039 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3040 {
3041         if (!queue->do_pack) {
3042                 if (atomic_read(&queue->used_buffers)
3043                     >= QETH_HIGH_WATERMARK_PACK){
3044                         /* switch non-PACKING -> PACKING */
3045                         QETH_DBF_TEXT(trace, 6, "np->pack");
3046                         if (queue->card->options.performance_stats)
3047                                 queue->card->perf_stats.sc_dp_p++;
3048                         queue->do_pack = 1;
3049                 }
3050         }
3051 }
3052
3053 /*
3054  * Switches from packing to non-packing mode. If there is a packing
3055  * buffer on the queue this buffer will be prepared to be flushed.
3056  * In that case 1 is returned to inform the caller. If no buffer
3057  * has to be flushed, zero is returned.
3058  */
3059 static int
3060 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3061 {
3062         struct qeth_qdio_out_buffer *buffer;
3063         int flush_count = 0;
3064
3065         if (queue->do_pack) {
3066                 if (atomic_read(&queue->used_buffers)
3067                     <= QETH_LOW_WATERMARK_PACK) {
3068                         /* switch PACKING -> non-PACKING */
3069                         QETH_DBF_TEXT(trace, 6, "pack->np");
3070                         if (queue->card->options.performance_stats)
3071                                 queue->card->perf_stats.sc_p_dp++;
3072                         queue->do_pack = 0;
3073                         /* flush packing buffers */
3074                         buffer = &queue->bufs[queue->next_buf_to_fill];
3075                         if ((atomic_read(&buffer->state) ==
3076                                                 QETH_QDIO_BUF_EMPTY) &&
3077                             (buffer->next_element_to_fill > 0)) {
3078                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
3079                                 flush_count++;
3080                                 queue->next_buf_to_fill =
3081                                         (queue->next_buf_to_fill + 1) %
3082                                         QDIO_MAX_BUFFERS_PER_Q;
3083                         }
3084                 }
3085         }
3086         return flush_count;
3087 }
3088
3089 /*
3090  * Called to flush a packing buffer if no more pci flags are on the queue.
3091  * Checks if there is a packing buffer and prepares it to be flushed.
3092  * In that case returns 1, otherwise zero.
3093  */
3094 static int
3095 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
3096 {
3097         struct qeth_qdio_out_buffer *buffer;
3098
3099         buffer = &queue->bufs[queue->next_buf_to_fill];
3100         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3101            (buffer->next_element_to_fill > 0)){
3102                 /* it's a packing buffer */
3103                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3104                 queue->next_buf_to_fill =
3105                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3106                 return 1;
3107         }
3108         return 0;
3109 }
3110
3111 static void
3112 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3113 {
3114         int index;
3115         int flush_cnt = 0;
3116         int q_was_packing = 0;
3117
3118         /*
3119          * check if weed have to switch to non-packing mode or if
3120          * we have to get a pci flag out on the queue
3121          */
3122         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3123             !atomic_read(&queue->set_pci_flags_count)){
3124                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3125                                 QETH_OUT_Q_UNLOCKED) {
3126                         /*
3127                          * If we get in here, there was no action in
3128                          * do_send_packet. So, we check if there is a
3129                          * packing buffer to be flushed here.
3130                          */
3131                         netif_stop_queue(queue->card->dev);
3132                         index = queue->next_buf_to_fill;
3133                         q_was_packing = queue->do_pack;
3134                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3135                         if (!flush_cnt &&
3136                             !atomic_read(&queue->set_pci_flags_count))
3137                                 flush_cnt +=
3138                                         qeth_flush_buffers_on_no_pci(queue);
3139                         if (queue->card->options.performance_stats &&
3140                             q_was_packing)
3141                                 queue->card->perf_stats.bufs_sent_pack +=
3142                                         flush_cnt;
3143                         if (flush_cnt)
3144                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
3145                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3146                 }
3147         }
3148 }
3149
3150 static void
3151 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3152                         unsigned int qdio_error, unsigned int siga_error,
3153                         unsigned int __queue, int first_element, int count,
3154                         unsigned long card_ptr)
3155 {
3156         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3157         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3158         struct qeth_qdio_out_buffer *buffer;
3159         int i;
3160
3161         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3162         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3163                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3164                         QETH_DBF_TEXT(trace, 2, "achkcond");
3165                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3166                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3167                         netif_stop_queue(card->dev);
3168                         qeth_schedule_recovery(card);
3169                         return;
3170                 }
3171         }
3172         if (card->options.performance_stats) {
3173                 card->perf_stats.outbound_handler_cnt++;
3174                 card->perf_stats.outbound_handler_start_time =
3175                         qeth_get_micros();
3176         }
3177         for(i = first_element; i < (first_element + count); ++i){
3178                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3179                 /*we only handle the KICK_IT error by doing a recovery */
3180                 if (qeth_handle_send_error(card, buffer,
3181                                            qdio_error, siga_error)
3182                                 == QETH_SEND_ERROR_KICK_IT){
3183                         netif_stop_queue(card->dev);
3184                         qeth_schedule_recovery(card);
3185                         return;
3186                 }
3187                 qeth_clear_output_buffer(queue, buffer);
3188         }
3189         atomic_sub(count, &queue->used_buffers);
3190         /* check if we need to do something on this outbound queue */
3191         if (card->info.type != QETH_CARD_TYPE_IQD)
3192                 qeth_check_outbound_queue(queue);
3193
3194         netif_wake_queue(queue->card->dev);
3195         if (card->options.performance_stats)
3196                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3197                         card->perf_stats.outbound_handler_start_time;
3198 }
3199
3200 static void
3201 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3202 {
3203
3204         param_field[0] = _ascebc['P'];
3205         param_field[1] = _ascebc['C'];
3206         param_field[2] = _ascebc['I'];
3207         param_field[3] = _ascebc['T'];
3208         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3209         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3210         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3211 }
3212
3213 static void
3214 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3215 {
3216         param_field[16] = _ascebc['B'];
3217         param_field[17] = _ascebc['L'];
3218         param_field[18] = _ascebc['K'];
3219         param_field[19] = _ascebc['T'];
3220         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3221         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3222         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3223 }
3224
3225 static void
3226 qeth_initialize_working_pool_list(struct qeth_card *card)
3227 {
3228         struct qeth_buffer_pool_entry *entry;
3229
3230         QETH_DBF_TEXT(trace,5,"inwrklst");
3231
3232         list_for_each_entry(entry,
3233                             &card->qdio.init_pool.entry_list, init_list) {
3234                 qeth_put_buffer_pool_entry(card,entry);
3235         }
3236 }
3237
3238 static void
3239 qeth_clear_working_pool_list(struct qeth_card *card)
3240 {
3241         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3242
3243         QETH_DBF_TEXT(trace,5,"clwrklst");
3244         list_for_each_entry_safe(pool_entry, tmp,
3245                             &card->qdio.in_buf_pool.entry_list, list){
3246                         list_del(&pool_entry->list);
3247         }
3248 }
3249
3250 static void
3251 qeth_free_buffer_pool(struct qeth_card *card)
3252 {
3253         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3254         int i=0;
3255         QETH_DBF_TEXT(trace,5,"freepool");
3256         list_for_each_entry_safe(pool_entry, tmp,
3257                                  &card->qdio.init_pool.entry_list, init_list){
3258                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3259                         free_page((unsigned long)pool_entry->elements[i]);
3260                 list_del(&pool_entry->init_list);
3261                 kfree(pool_entry);
3262         }
3263 }
3264
3265 static int
3266 qeth_alloc_buffer_pool(struct qeth_card *card)
3267 {
3268         struct qeth_buffer_pool_entry *pool_entry;
3269         void *ptr;
3270         int i, j;
3271
3272         QETH_DBF_TEXT(trace,5,"alocpool");
3273         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3274                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3275                 if (!pool_entry){
3276                         qeth_free_buffer_pool(card);
3277                         return -ENOMEM;
3278                 }
3279                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3280                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3281                         if (!ptr) {
3282                                 while (j > 0)
3283                                         free_page((unsigned long)
3284                                                   pool_entry->elements[--j]);
3285                                 kfree(pool_entry);
3286                                 qeth_free_buffer_pool(card);
3287                                 return -ENOMEM;
3288                         }
3289                         pool_entry->elements[j] = ptr;
3290                 }
3291                 list_add(&pool_entry->init_list,
3292                          &card->qdio.init_pool.entry_list);
3293         }
3294         return 0;
3295 }
3296
3297 int
3298 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3299 {
3300         QETH_DBF_TEXT(trace, 2, "realcbp");
3301
3302         if ((card->state != CARD_STATE_DOWN) &&
3303             (card->state != CARD_STATE_RECOVER))
3304                 return -EPERM;
3305
3306         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3307         qeth_clear_working_pool_list(card);
3308         qeth_free_buffer_pool(card);
3309         card->qdio.in_buf_pool.buf_count = bufcnt;
3310         card->qdio.init_pool.buf_count = bufcnt;
3311         return qeth_alloc_buffer_pool(card);
3312 }
3313
3314 static int
3315 qeth_alloc_qdio_buffers(struct qeth_card *card)
3316 {
3317         int i, j;
3318
3319         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3320
3321         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3322                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3323                 return 0;
3324
3325         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3326                                   GFP_KERNEL|GFP_DMA);
3327         if (!card->qdio.in_q)
3328                 goto out_nomem;
3329         QETH_DBF_TEXT(setup, 2, "inq");
3330         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3331         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3332         /* give inbound qeth_qdio_buffers their qdio_buffers */
3333         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3334                 card->qdio.in_q->bufs[i].buffer =
3335                         &card->qdio.in_q->qdio_bufs[i];
3336         /* inbound buffer pool */
3337         if (qeth_alloc_buffer_pool(card))
3338                 goto out_freeinq;
3339         /* outbound */
3340         card->qdio.out_qs =
3341                 kmalloc(card->qdio.no_out_queues *
3342                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3343         if (!card->qdio.out_qs)
3344                 goto out_freepool;
3345         for (i = 0; i < card->qdio.no_out_queues; ++i) {
3346                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3347                                                GFP_KERNEL|GFP_DMA);
3348                 if (!card->qdio.out_qs[i])
3349                         goto out_freeoutq;
3350                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3351                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3352                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3353                 card->qdio.out_qs[i]->queue_no = i;
3354                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3355                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3356                         card->qdio.out_qs[i]->bufs[j].buffer =
3357                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3358                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3359                                             skb_list);
3360                         lockdep_set_class(
3361                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3362                                 &qdio_out_skb_queue_key);
3363                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3364                 }
3365         }
3366         return 0;
3367
3368 out_freeoutq:
3369         while (i > 0)
3370                 kfree(card->qdio.out_qs[--i]);
3371         kfree(card->qdio.out_qs);
3372         card->qdio.out_qs = NULL;
3373 out_freepool:
3374         qeth_free_buffer_pool(card);
3375 out_freeinq:
3376         kfree(card->qdio.in_q);
3377         card->qdio.in_q = NULL;
3378 out_nomem:
3379         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3380         return -ENOMEM;
3381 }
3382
3383 static void
3384 qeth_free_qdio_buffers(struct qeth_card *card)
3385 {
3386         int i, j;
3387
3388         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3389         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3390                 QETH_QDIO_UNINITIALIZED)
3391                 return;
3392         kfree(card->qdio.in_q);
3393         card->qdio.in_q = NULL;
3394         /* inbound buffer pool */
3395         qeth_free_buffer_pool(card);
3396         /* free outbound qdio_qs */
3397         if (card->qdio.out_qs) {
3398                 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3399                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3400                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3401                                                 &card->qdio.out_qs[i]->bufs[j]);
3402                         kfree(card->qdio.out_qs[i]);
3403                 }
3404                 kfree(card->qdio.out_qs);
3405                 card->qdio.out_qs = NULL;
3406         }
3407 }
3408
3409 static void
3410 qeth_clear_qdio_buffers(struct qeth_card *card)
3411 {
3412         int i, j;
3413
3414         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3415         /* clear outbound buffers to free skbs */
3416         for (i = 0; i < card->qdio.no_out_queues; ++i)
3417                 if (card->qdio.out_qs && card->qdio.out_qs[i]) {
3418                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3419                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3420                                                 &card->qdio.out_qs[i]->bufs[j]);
3421                 }
3422 }
3423
3424 static void
3425 qeth_init_qdio_info(struct qeth_card *card)
3426 {
3427         QETH_DBF_TEXT(setup, 4, "intqdinf");
3428         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3429         /* inbound */
3430         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3431         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3432         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3433         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3434         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3435 }
3436
3437 static int
3438 qeth_init_qdio_queues(struct qeth_card *card)
3439 {
3440         int i, j;
3441         int rc;
3442
3443         QETH_DBF_TEXT(setup, 2, "initqdqs");
3444
3445         /* inbound queue */
3446         memset(card->qdio.in_q->qdio_bufs, 0,
3447                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3448         qeth_initialize_working_pool_list(card);
3449         /*give only as many buffers to hardware as we have buffer pool entries*/
3450         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3451                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3452         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3453         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3454                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3455         if (rc) {
3456                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3457                 return rc;
3458         }
3459         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3460         if (rc) {
3461                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3462                 return rc;
3463         }
3464         /* outbound queue */
3465         for (i = 0; i < card->qdio.no_out_queues; ++i){
3466                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3467                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3468                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3469                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3470                                         &card->qdio.out_qs[i]->bufs[j]);
3471                 }
3472                 card->qdio.out_qs[i]->card = card;
3473                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3474                 card->qdio.out_qs[i]->do_pack = 0;
3475                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3476                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3477                 atomic_set(&card->qdio.out_qs[i]->state,
3478                            QETH_OUT_Q_UNLOCKED);
3479         }
3480         return 0;
3481 }
3482
3483 static int
3484 qeth_qdio_establish(struct qeth_card *card)
3485 {
3486         struct qdio_initialize init_data;
3487         char *qib_param_field;
3488         struct qdio_buffer **in_sbal_ptrs;
3489         struct qdio_buffer **out_sbal_ptrs;
3490         int i, j, k;
3491         int rc = 0;
3492
3493         QETH_DBF_TEXT(setup, 2, "qdioest");
3494
3495         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3496                               GFP_KERNEL);
3497         if (!qib_param_field)
3498                 return -ENOMEM;
3499
3500         qeth_create_qib_param_field(card, qib_param_field);
3501         qeth_create_qib_param_field_blkt(card, qib_param_field);
3502
3503         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3504                                GFP_KERNEL);
3505         if (!in_sbal_ptrs) {
3506                 kfree(qib_param_field);
3507                 return -ENOMEM;
3508         }
3509         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3510                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3511                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3512
3513         out_sbal_ptrs =
3514                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3515                         sizeof(void *), GFP_KERNEL);
3516         if (!out_sbal_ptrs) {
3517                 kfree(in_sbal_ptrs);
3518                 kfree(qib_param_field);
3519                 return -ENOMEM;
3520         }
3521         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3522                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3523                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3524                                 virt_to_phys(card->qdio.out_qs[i]->
3525                                              bufs[j].buffer);
3526                 }
3527
3528         memset(&init_data, 0, sizeof(struct qdio_initialize));
3529         init_data.cdev                   = CARD_DDEV(card);
3530         init_data.q_format               = qeth_get_qdio_q_format(card);
3531         init_data.qib_param_field_format = 0;
3532         init_data.qib_param_field        = qib_param_field;
3533         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3534         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3535         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3536         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3537         init_data.no_input_qs            = 1;
3538         init_data.no_output_qs           = card->qdio.no_out_queues;
3539         init_data.input_handler          = (qdio_handler_t *)
3540                                            qeth_qdio_input_handler;
3541         init_data.output_handler         = (qdio_handler_t *)
3542                                            qeth_qdio_output_handler;
3543         init_data.int_parm               = (unsigned long) card;
3544         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3545                                            QDIO_OUTBOUND_0COPY_SBALS |
3546                                            QDIO_USE_OUTBOUND_PCIS;
3547         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3548         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3549
3550         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3551                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3552                 if ((rc = qdio_initialize(&init_data)))
3553                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3554
3555         kfree(out_sbal_ptrs);
3556         kfree(in_sbal_ptrs);
3557         kfree(qib_param_field);
3558         return rc;
3559 }
3560
3561 static int
3562 qeth_qdio_activate(struct qeth_card *card)
3563 {
3564         QETH_DBF_TEXT(setup,3,"qdioact");
3565         return qdio_activate(CARD_DDEV(card), 0);
3566 }
3567
3568 static int
3569 qeth_clear_channel(struct qeth_channel *channel)
3570 {
3571         unsigned long flags;
3572         struct qeth_card *card;
3573         int rc;
3574
3575         QETH_DBF_TEXT(trace,3,"clearch");
3576         card = CARD_FROM_CDEV(channel->ccwdev);
3577         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3578         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3579         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3580
3581         if (rc)
3582                 return rc;
3583         rc = wait_event_interruptible_timeout(card->wait_q,
3584                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3585         if (rc == -ERESTARTSYS)
3586                 return rc;
3587         if (channel->state != CH_STATE_STOPPED)
3588                 return -ETIME;
3589         channel->state = CH_STATE_DOWN;
3590         return 0;
3591 }
3592
3593 static int
3594 qeth_halt_channel(struct qeth_channel *channel)
3595 {
3596         unsigned long flags;
3597         struct qeth_card *card;
3598         int rc;
3599
3600         QETH_DBF_TEXT(trace,3,"haltch");
3601         card = CARD_FROM_CDEV(channel->ccwdev);
3602         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3603         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3604         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3605
3606         if (rc)
3607                 return rc;
3608         rc = wait_event_interruptible_timeout(card->wait_q,
3609                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3610         if (rc == -ERESTARTSYS)
3611                 return rc;
3612         if (channel->state != CH_STATE_HALTED)
3613                 return -ETIME;
3614         return 0;
3615 }
3616
3617 static int
3618 qeth_halt_channels(struct qeth_card *card)
3619 {
3620         int rc1 = 0, rc2=0, rc3 = 0;
3621
3622         QETH_DBF_TEXT(trace,3,"haltchs");
3623         rc1 = qeth_halt_channel(&card->read);
3624         rc2 = qeth_halt_channel(&card->write);
3625         rc3 = qeth_halt_channel(&card->data);
3626         if (rc1)
3627                 return rc1;
3628         if (rc2)
3629                 return rc2;
3630         return rc3;
3631 }
3632 static int
3633 qeth_clear_channels(struct qeth_card *card)
3634 {
3635         int rc1 = 0, rc2=0, rc3 = 0;
3636
3637         QETH_DBF_TEXT(trace,3,"clearchs");
3638         rc1 = qeth_clear_channel(&card->read);
3639         rc2 = qeth_clear_channel(&card->write);
3640         rc3 = qeth_clear_channel(&card->data);
3641         if (rc1)
3642                 return rc1;
3643         if (rc2)
3644                 return rc2;
3645         return rc3;
3646 }
3647
3648 static int
3649 qeth_clear_halt_card(struct qeth_card *card, int halt)
3650 {
3651         int rc = 0;
3652
3653         QETH_DBF_TEXT(trace,3,"clhacrd");
3654         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3655
3656         if (halt)
3657                 rc = qeth_halt_channels(card);
3658         if (rc)
3659                 return rc;
3660         return qeth_clear_channels(card);
3661 }
3662
3663 static int
3664 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3665 {
3666         int rc = 0;
3667
3668         QETH_DBF_TEXT(trace,3,"qdioclr");
3669         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3670                 QETH_QDIO_CLEANING)) {
3671         case QETH_QDIO_ESTABLISHED:
3672                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3673                                 (card->info.type == QETH_CARD_TYPE_IQD) ?
3674                                 QDIO_FLAG_CLEANUP_USING_HALT :
3675                                 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3676                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3677                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3678                 break;
3679         case QETH_QDIO_CLEANING:
3680                 return rc;
3681         default:
3682                 break;
3683         }
3684         if ((rc = qeth_clear_halt_card(card, use_halt)))
3685                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3686         card->state = CARD_STATE_DOWN;
3687         return rc;
3688 }
3689
3690 static int
3691 qeth_dm_act(struct qeth_card *card)
3692 {
3693         int rc;
3694         struct qeth_cmd_buffer *iob;
3695
3696         QETH_DBF_TEXT(setup,2,"dmact");
3697
3698         iob = qeth_wait_for_buffer(&card->write);
3699         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3700
3701         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3702                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3703         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3704                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3705         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3706         return rc;
3707 }
3708
3709 static int
3710 qeth_mpc_initialize(struct qeth_card *card)
3711 {
3712         int rc;
3713
3714         QETH_DBF_TEXT(setup,2,"mpcinit");
3715
3716         if ((rc = qeth_issue_next_read(card))){
3717                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3718                 return rc;
3719         }
3720         if ((rc = qeth_cm_enable(card))){
3721                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3722                 goto out_qdio;
3723         }
3724         if ((rc = qeth_cm_setup(card))){
3725                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3726                 goto out_qdio;
3727         }
3728         if ((rc = qeth_ulp_enable(card))){
3729                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3730                 goto out_qdio;
3731         }
3732         if ((rc = qeth_ulp_setup(card))){
3733                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3734                 goto out_qdio;
3735         }
3736         if ((rc = qeth_alloc_qdio_buffers(card))){
3737                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3738                 goto out_qdio;
3739         }
3740         if ((rc = qeth_qdio_establish(card))){
3741                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3742                 qeth_free_qdio_buffers(card);
3743                 goto out_qdio;
3744         }
3745         if ((rc = qeth_qdio_activate(card))){
3746                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3747                 goto out_qdio;
3748         }
3749         if ((rc = qeth_dm_act(card))){
3750                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3751                 goto out_qdio;
3752         }
3753
3754         return 0;
3755 out_qdio:
3756         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3757         return rc;
3758 }
3759
3760 static struct net_device *
3761 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3762 {
3763         struct net_device *dev = NULL;
3764
3765         switch (type) {
3766         case QETH_CARD_TYPE_OSAE:
3767                 switch (linktype) {
3768                 case QETH_LINK_TYPE_LANE_TR:
3769                 case QETH_LINK_TYPE_HSTR:
3770 #ifdef CONFIG_TR
3771                         dev = alloc_trdev(0);
3772 #endif /* CONFIG_TR */
3773                         break;
3774                 default:
3775                         dev = alloc_etherdev(0);
3776                 }
3777                 break;
3778         case QETH_CARD_TYPE_IQD:
3779                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3780                 break;
3781         case QETH_CARD_TYPE_OSN:
3782                 dev = alloc_netdev(0, "osn%d", ether_setup);
3783                 break;
3784         default:
3785                 dev = alloc_etherdev(0);
3786         }
3787         return dev;
3788 }
3789
3790 /*hard_header fake function; used in case fake_ll is set */
3791 static int
3792 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3793                  unsigned short type, const void *daddr, const void *saddr,
3794                  unsigned len)
3795 {
3796         if(dev->type == ARPHRD_IEEE802_TR){
3797                 struct trh_hdr *hdr;
3798                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3799                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3800                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3801                 return QETH_FAKE_LL_LEN_TR;
3802
3803         } else {
3804                 struct ethhdr *hdr;
3805                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3806                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3807                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3808                 if (type != ETH_P_802_3)
3809                         hdr->h_proto = htons(type);
3810                 else
3811                         hdr->h_proto = htons(len);
3812                 return QETH_FAKE_LL_LEN_ETH;
3813
3814         }
3815 }
3816
3817 static const struct header_ops qeth_fake_ops = {
3818         .create = qeth_fake_header,
3819         .parse  = qeth_hard_header_parse,
3820 };
3821
3822 static int
3823 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3824
3825 static int
3826 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3827 {
3828         int rc;
3829         struct qeth_card *card;
3830
3831         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3832         card = (struct qeth_card *)dev->priv;
3833         if (skb==NULL) {
3834                 card->stats.tx_dropped++;
3835                 card->stats.tx_errors++;
3836                 /* return OK; otherwise ksoftirqd goes to 100% */
3837                 return NETDEV_TX_OK;
3838         }
3839         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3840                 card->stats.tx_dropped++;
3841                 card->stats.tx_errors++;
3842                 card->stats.tx_carrier_errors++;
3843                 dev_kfree_skb_any(skb);
3844                 /* return OK; otherwise ksoftirqd goes to 100% */
3845                 return NETDEV_TX_OK;
3846         }
3847         if (card->options.performance_stats) {
3848                 card->perf_stats.outbound_cnt++;
3849                 card->perf_stats.outbound_start_time = qeth_get_micros();
3850         }
3851         netif_stop_queue(dev);
3852         if ((rc = qeth_send_packet(card, skb))) {
3853                 if (rc == -EBUSY) {
3854                         return NETDEV_TX_BUSY;
3855                 } else {
3856                         card->stats.tx_errors++;
3857                         card->stats.tx_dropped++;
3858                         dev_kfree_skb_any(skb);
3859                         /*set to OK; otherwise ksoftirqd goes to 100% */
3860                         rc = NETDEV_TX_OK;
3861                 }
3862         }
3863         netif_wake_queue(dev);
3864         if (card->options.performance_stats)
3865                 card->perf_stats.outbound_time += qeth_get_micros() -
3866                         card->perf_stats.outbound_start_time;
3867         return rc;
3868 }
3869
3870 static int
3871 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3872 {
3873         int rc = 0;
3874 #ifdef CONFIG_QETH_VLAN
3875         struct vlan_group *vg;
3876         int i;
3877
3878         if (!(vg = card->vlangrp))
3879                 return rc;
3880
3881         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3882                 if (vlan_group_get_device(vg, i) == dev){
3883                         rc = QETH_VLAN_CARD;
3884                         break;
3885                 }
3886         }
3887         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3888                 return 0;
3889
3890 #endif
3891         return rc;
3892 }
3893
3894 static int
3895 qeth_verify_dev(struct net_device *dev)
3896 {
3897         struct qeth_card *card;
3898         unsigned long flags;
3899         int rc = 0;
3900
3901         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3902         list_for_each_entry(card, &qeth_card_list.list, list){
3903                 if (card->dev == dev){
3904                         rc = QETH_REAL_CARD;
3905                         break;
3906                 }
3907                 rc = qeth_verify_vlan_dev(dev, card);
3908                 if (rc)
3909                         break;
3910         }
3911         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3912
3913         return rc;
3914 }
3915
3916 static struct qeth_card *
3917 qeth_get_card_from_dev(struct net_device *dev)
3918 {
3919         struct qeth_card *card = NULL;
3920         int rc;
3921
3922         rc = qeth_verify_dev(dev);
3923         if (rc == QETH_REAL_CARD)
3924                 card = (struct qeth_card *)dev->priv;
3925         else if (rc == QETH_VLAN_CARD)
3926                 card = (struct qeth_card *)
3927                         VLAN_DEV_INFO(dev)->real_dev->priv;
3928
3929         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3930         return card ;
3931 }
3932
3933 static void
3934 qeth_tx_timeout(struct net_device *dev)
3935 {
3936         struct qeth_card *card;
3937
3938         card = (struct qeth_card *) dev->priv;
3939         card->stats.tx_errors++;
3940         qeth_schedule_recovery(card);
3941 }
3942
3943 static int
3944 qeth_open(struct net_device *dev)
3945 {
3946         struct qeth_card *card;
3947
3948         QETH_DBF_TEXT(trace, 4, "qethopen");
3949
3950         card = (struct qeth_card *) dev->priv;
3951
3952         if (card->state != CARD_STATE_SOFTSETUP)
3953                 return -ENODEV;
3954
3955         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3956              (card->options.layer2) &&
3957              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3958                 QETH_DBF_TEXT(trace,4,"nomacadr");
3959                 return -EPERM;
3960         }
3961         card->data.state = CH_STATE_UP;
3962         card->state = CARD_STATE_UP;
3963         card->dev->flags |= IFF_UP;
3964         netif_start_queue(dev);
3965
3966         if (!card->lan_online && netif_carrier_ok(dev))
3967                 netif_carrier_off(dev);
3968         return 0;
3969 }
3970
3971 static int
3972 qeth_stop(struct net_device *dev)
3973 {
3974         struct qeth_card *card;
3975
3976         QETH_DBF_TEXT(trace, 4, "qethstop");
3977
3978         card = (struct qeth_card *) dev->priv;
3979
3980         netif_tx_disable(dev);
3981         card->dev->flags &= ~IFF_UP;
3982         if (card->state == CARD_STATE_UP)
3983                 card->state = CARD_STATE_SOFTSETUP;
3984         return 0;
3985 }
3986
3987 static int
3988 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3989 {
3990         int cast_type = RTN_UNSPEC;
3991
3992         if (card->info.type == QETH_CARD_TYPE_OSN)
3993                 return cast_type;
3994
3995         if (skb->dst && skb->dst->neighbour){
3996                 cast_type = skb->dst->neighbour->type;
3997                 if ((cast_type == RTN_BROADCAST) ||
3998                     (cast_type == RTN_MULTICAST) ||
3999                     (cast_type == RTN_ANYCAST))
4000                         return cast_type;
4001                 else
4002                         return RTN_UNSPEC;
4003         }
4004         /* try something else */
4005         if (skb->protocol == ETH_P_IPV6)
4006                 return (skb_network_header(skb)[24] == 0xff) ?
4007                                 RTN_MULTICAST : 0;
4008         else if (skb->protocol == ETH_P_IP)
4009                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
4010                                 RTN_MULTICAST : 0;
4011         /* ... */
4012         if (!memcmp(skb->data, skb->dev->broadcast, 6))
4013                 return RTN_BROADCAST;
4014         else {
4015                 u16 hdr_mac;
4016
4017                 hdr_mac = *((u16 *)skb->data);
4018                 /* tr multicast? */
4019                 switch (card->info.link_type) {
4020                 case QETH_LINK_TYPE_HSTR:
4021                 case QETH_LINK_TYPE_LANE_TR:
4022                         if ((hdr_mac == QETH_TR_MAC_NC) ||
4023                             (hdr_mac == QETH_TR_MAC_C))
4024                                 return RTN_MULTICAST;
4025                         break;
4026                 /* eth or so multicast? */
4027                 default:
4028                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
4029                             (hdr_mac == QETH_ETH_MAC_V6))
4030                                 return RTN_MULTICAST;
4031                 }
4032         }
4033         return cast_type;
4034 }
4035
4036 static int
4037 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
4038                         int ipv, int cast_type)
4039 {
4040         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
4041                 return card->qdio.default_out_queue;
4042         switch (card->qdio.no_out_queues) {
4043         case 4:
4044                 if (cast_type && card->info.is_multicast_different)
4045                         return card->info.is_multicast_different &
4046                                 (card->qdio.no_out_queues - 1);
4047                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
4048                         const u8 tos = ip_hdr(skb)->tos;
4049
4050                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
4051                                 if (tos & IP_TOS_NOTIMPORTANT)
4052                                         return 3;
4053                                 if (tos & IP_TOS_HIGHRELIABILITY)
4054                                         return 2;
4055                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
4056                                         return 1;
4057                                 if (tos & IP_TOS_LOWDELAY)
4058                                         return 0;
4059                         }
4060                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
4061                                 return 3 - (tos >> 6);
4062                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
4063                         /* TODO: IPv6!!! */
4064                 }
4065                 return card->qdio.default_out_queue;
4066         case 1: /* fallthrough for single-out-queue 1920-device */
4067         default:
4068                 return card->qdio.default_out_queue;
4069         }
4070 }
4071
4072 static inline int
4073 qeth_get_ip_version(struct sk_buff *skb)
4074 {
4075         switch (skb->protocol) {
4076         case ETH_P_IPV6:
4077                 return 6;
4078         case ETH_P_IP:
4079                 return 4;
4080         default:
4081                 return 0;
4082         }
4083 }
4084
4085 static struct qeth_hdr *
4086 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
4087 {
4088 #ifdef CONFIG_QETH_VLAN
4089         u16 *tag;
4090         if (card->vlangrp && vlan_tx_tag_present(skb) &&
4091             ((ipv == 6) || card->options.layer2) ) {
4092                 /*
4093                  * Move the mac addresses (6 bytes src, 6 bytes dest)
4094                  * to the beginning of the new header.  We are using three
4095                  * memcpys instead of one memmove to save cycles.
4096                  */
4097                 skb_push(skb, VLAN_HLEN);
4098                 skb_copy_to_linear_data(skb, skb->data + 4, 4);
4099                 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
4100                 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
4101                 tag = (u16 *)(skb->data + 12);
4102                 /*
4103                  * first two bytes  = ETH_P_8021Q (0x8100)
4104                  * second two bytes = VLANID
4105                  */
4106                 *tag = __constant_htons(ETH_P_8021Q);
4107                 *(tag + 1) = htons(vlan_tx_tag_get(skb));
4108         }
4109 #endif
4110         return ((struct qeth_hdr *)
4111                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
4112 }
4113
4114 static void
4115 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
4116 {
4117         if (orig_skb != new_skb)
4118                 dev_kfree_skb_any(new_skb);
4119 }
4120
4121 static struct sk_buff *
4122 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
4123                  struct qeth_hdr **hdr, int ipv)
4124 {
4125         struct sk_buff *new_skb, *new_skb2;
4126
4127         QETH_DBF_TEXT(trace, 6, "prepskb");
4128         new_skb = skb;
4129         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4130         if (!new_skb)
4131                 return NULL;
4132         new_skb2 = qeth_realloc_headroom(card, new_skb,
4133                                          sizeof(struct qeth_hdr));
4134         if (!new_skb2) {
4135                 __qeth_free_new_skb(skb, new_skb);
4136                 return NULL;
4137         }
4138         if (new_skb != skb)
4139                 __qeth_free_new_skb(new_skb2, new_skb);
4140         new_skb = new_skb2;
4141         *hdr = __qeth_prepare_skb(card, new_skb, ipv);
4142         if (*hdr == NULL) {
4143                 __qeth_free_new_skb(skb, new_skb);
4144                 return NULL;
4145         }
4146         return new_skb;
4147 }
4148
4149 static inline u8
4150 qeth_get_qeth_hdr_flags4(int cast_type)
4151 {
4152         if (cast_type == RTN_MULTICAST)
4153                 return QETH_CAST_MULTICAST;
4154         if (cast_type == RTN_BROADCAST)
4155                 return QETH_CAST_BROADCAST;
4156         return QETH_CAST_UNICAST;
4157 }
4158
4159 static inline u8
4160 qeth_get_qeth_hdr_flags6(int cast_type)
4161 {
4162         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
4163         if (cast_type == RTN_MULTICAST)
4164                 return ct | QETH_CAST_MULTICAST;
4165         if (cast_type == RTN_ANYCAST)
4166                 return ct | QETH_CAST_ANYCAST;
4167         if (cast_type == RTN_BROADCAST)
4168                 return ct | QETH_CAST_BROADCAST;
4169         return ct | QETH_CAST_UNICAST;
4170 }
4171
4172 static void
4173 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4174                             struct sk_buff *skb)
4175 {
4176         __u16 hdr_mac;
4177
4178         if (!memcmp(skb->data+QETH_HEADER_SIZE,
4179                     skb->dev->broadcast,6)) { /* broadcast? */
4180                 *(__u32 *)hdr->hdr.l2.flags |=
4181                          QETH_LAYER2_FLAG_BROADCAST << 8;
4182                 return;
4183         }
4184         hdr_mac=*((__u16*)skb->data);
4185         /* tr multicast? */
4186         switch (card->info.link_type) {
4187         case QETH_LINK_TYPE_HSTR:
4188         case QETH_LINK_TYPE_LANE_TR:
4189                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4190                     (hdr_mac == QETH_TR_MAC_C) )
4191                         *(__u32 *)hdr->hdr.l2.flags |=
4192                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4193                 else
4194                         *(__u32 *)hdr->hdr.l2.flags |=
4195                                 QETH_LAYER2_FLAG_UNICAST << 8;
4196                 break;
4197                 /* eth or so multicast? */
4198         default:
4199                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4200                      (hdr_mac==QETH_ETH_MAC_V6) )
4201                         *(__u32 *)hdr->hdr.l2.flags |=
4202                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4203                 else
4204                         *(__u32 *)hdr->hdr.l2.flags |=
4205                                 QETH_LAYER2_FLAG_UNICAST << 8;
4206         }
4207 }
4208
4209 static void
4210 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4211                         struct sk_buff *skb, int cast_type)
4212 {
4213         memset(hdr, 0, sizeof(struct qeth_hdr));
4214         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4215
4216         /* set byte 0 to "0x02" and byte 3 to casting flags */
4217         if (cast_type==RTN_MULTICAST)
4218                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4219         else if (cast_type==RTN_BROADCAST)
4220                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4221          else
4222                 qeth_layer2_get_packet_type(card, hdr, skb);
4223
4224         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4225 #ifdef CONFIG_QETH_VLAN
4226         /* VSWITCH relies on the VLAN
4227          * information to be present in
4228          * the QDIO header */
4229         if ((card->vlangrp != NULL) &&
4230             vlan_tx_tag_present(skb)) {
4231                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4232                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4233         }
4234 #endif
4235 }
4236
4237 void
4238 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4239                 struct sk_buff *skb, int ipv, int cast_type)
4240 {
4241         QETH_DBF_TEXT(trace, 6, "fillhdr");
4242
4243         memset(hdr, 0, sizeof(struct qeth_hdr));
4244         if (card->options.layer2) {
4245                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4246                 return;
4247         }
4248         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4249         hdr->hdr.l3.ext_flags = 0;
4250 #ifdef CONFIG_QETH_VLAN
4251         /*
4252          * before we're going to overwrite this location with next hop ip.
4253          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4254          */
4255         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4256                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4257                         QETH_HDR_EXT_VLAN_FRAME :
4258                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4259                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4260         }
4261 #endif /* CONFIG_QETH_VLAN */
4262         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4263         if (ipv == 4) {  /* IPv4 */
4264                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4265                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4266                 if ((skb->dst) && (skb->dst->neighbour)) {
4267                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4268                             *((u32 *) skb->dst->neighbour->primary_key);
4269                 } else {
4270                         /* fill in destination address used in ip header */
4271                         *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4272                                                            ip_hdr(skb)->daddr;
4273                 }
4274         } else if (ipv == 6) { /* IPv6 or passthru */
4275                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4276                 if ((skb->dst) && (skb->dst->neighbour)) {
4277                         memcpy(hdr->hdr.l3.dest_addr,
4278                                skb->dst->neighbour->primary_key, 16);
4279                 } else {
4280                         /* fill in destination address used in ip header */
4281                         memcpy(hdr->hdr.l3.dest_addr,
4282                                &ipv6_hdr(skb)->daddr, 16);
4283                 }
4284         } else { /* passthrough */
4285                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4286                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4287                     sizeof(__u16), skb->dev->broadcast, 6)) {
4288                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4289                                                 QETH_HDR_PASSTHRU;
4290                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4291                             skb->dev->broadcast, 6)) {   /* broadcast? */
4292                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4293                                                 QETH_HDR_PASSTHRU;
4294                 } else {
4295                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4296                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4297                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4298                 }
4299         }
4300 }
4301
4302 static void
4303 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4304                    int is_tso, int *next_element_to_fill)
4305 {
4306         int length = skb->len;
4307         int length_here;
4308         int element;
4309         char *data;
4310         int first_lap ;
4311
4312         element = *next_element_to_fill;
4313         data = skb->data;
4314         first_lap = (is_tso == 0 ? 1 : 0);
4315
4316         while (length > 0) {
4317                 /* length_here is the remaining amount of data in this page */
4318                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4319                 if (length < length_here)
4320                         length_here = length;
4321
4322                 buffer->element[element].addr = data;
4323                 buffer->element[element].length = length_here;
4324                 length -= length_here;
4325                 if (!length) {
4326                         if (first_lap)
4327                                 buffer->element[element].flags = 0;
4328                         else
4329                                 buffer->element[element].flags =
4330                                     SBAL_FLAGS_LAST_FRAG;
4331                 } else {
4332                         if (first_lap)
4333                                 buffer->element[element].flags =
4334                                     SBAL_FLAGS_FIRST_FRAG;
4335                         else
4336                                 buffer->element[element].flags =
4337                                     SBAL_FLAGS_MIDDLE_FRAG;
4338                 }
4339                 data += length_here;
4340                 element++;
4341                 first_lap = 0;
4342         }
4343         *next_element_to_fill = element;
4344 }
4345
4346 static int
4347 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4348                  struct qeth_qdio_out_buffer *buf,
4349                  struct sk_buff *skb)
4350 {
4351         struct qdio_buffer *buffer;
4352         struct qeth_hdr_tso *hdr;
4353         int flush_cnt = 0, hdr_len, large_send = 0;
4354
4355         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4356
4357         buffer = buf->buffer;
4358         atomic_inc(&skb->users);
4359         skb_queue_tail(&buf->skb_list, skb);
4360
4361         hdr  = (struct qeth_hdr_tso *) skb->data;
4362         /*check first on TSO ....*/
4363         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4364                 int element = buf->next_element_to_fill;
4365
4366                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4367                 /*fill first buffer entry only with header information */
4368                 buffer->element[element].addr = skb->data;
4369                 buffer->element[element].length = hdr_len;
4370                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4371                 buf->next_element_to_fill++;
4372                 skb->data += hdr_len;
4373                 skb->len  -= hdr_len;
4374                 large_send = 1;
4375         }
4376         if (skb_shinfo(skb)->nr_frags == 0)
4377                 __qeth_fill_buffer(skb, buffer, large_send,
4378                                    (int *)&buf->next_element_to_fill);
4379         else
4380                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4381                                         (int *)&buf->next_element_to_fill);
4382
4383         if (!queue->do_pack) {
4384                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4385                 /* set state to PRIMED -> will be flushed */
4386                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4387                 flush_cnt = 1;
4388         } else {
4389                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4390                 if (queue->card->options.performance_stats)
4391                         queue->card->perf_stats.skbs_sent_pack++;
4392                 if (buf->next_element_to_fill >=
4393                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4394                         /*
4395                          * packed buffer if full -> set state PRIMED
4396                          * -> will be flushed
4397                          */
4398                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4399                         flush_cnt = 1;
4400                 }
4401         }
4402         return flush_cnt;
4403 }
4404
4405 static int
4406 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4407                          struct sk_buff *skb, struct qeth_hdr *hdr,
4408                          int elements_needed,
4409                          struct qeth_eddp_context *ctx)
4410 {
4411         struct qeth_qdio_out_buffer *buffer;
4412         int buffers_needed = 0;
4413         int flush_cnt = 0;
4414         int index;
4415
4416         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4417
4418         /* spin until we get the queue ... */
4419         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4420                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4421         /* ... now we've got the queue */
4422         index = queue->next_buf_to_fill;
4423         buffer = &queue->bufs[queue->next_buf_to_fill];
4424         /*
4425          * check if buffer is empty to make sure that we do not 'overtake'
4426          * ourselves and try to fill a buffer that is already primed
4427          */
4428         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4429                 goto out;
4430         if (ctx == NULL)
4431                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4432                                           QDIO_MAX_BUFFERS_PER_Q;
4433         else {
4434                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4435                 if (buffers_needed < 0)
4436                         goto out;
4437                 queue->next_buf_to_fill =
4438                         (queue->next_buf_to_fill + buffers_needed) %
4439                         QDIO_MAX_BUFFERS_PER_Q;
4440         }
4441         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4442         if (ctx == NULL) {
4443                 qeth_fill_buffer(queue, buffer, skb);
4444                 qeth_flush_buffers(queue, 0, index, 1);
4445         } else {
4446                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4447                 WARN_ON(buffers_needed != flush_cnt);
4448                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4449         }
4450         return 0;
4451 out:
4452         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4453         return -EBUSY;
4454 }
4455
4456 static int
4457 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4458                     struct sk_buff *skb, struct qeth_hdr *hdr,
4459                     int elements_needed, struct qeth_eddp_context *ctx)
4460 {
4461         struct qeth_qdio_out_buffer *buffer;
4462         int start_index;
4463         int flush_count = 0;
4464         int do_pack = 0;
4465         int tmp;
4466         int rc = 0;
4467
4468         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4469
4470         /* spin until we get the queue ... */
4471         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4472                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4473         start_index = queue->next_buf_to_fill;
4474         buffer = &queue->bufs[queue->next_buf_to_fill];
4475         /*
4476          * check if buffer is empty to make sure that we do not 'overtake'
4477          * ourselves and try to fill a buffer that is already primed
4478          */
4479         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4480                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4481                 return -EBUSY;
4482         }
4483         /* check if we need to switch packing state of this queue */
4484         qeth_switch_to_packing_if_needed(queue);
4485         if (queue->do_pack){
4486                 do_pack = 1;
4487                 if (ctx == NULL) {
4488                         /* does packet fit in current buffer? */
4489                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4490                             buffer->next_element_to_fill) < elements_needed){
4491                                 /* ... no -> set state PRIMED */
4492                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4493                                 flush_count++;
4494                                 queue->next_buf_to_fill =
4495                                         (queue->next_buf_to_fill + 1) %
4496                                         QDIO_MAX_BUFFERS_PER_Q;
4497                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4498                                 /* we did a step forward, so check buffer state
4499                                  * again */
4500                                 if (atomic_read(&buffer->state) !=
4501                                                 QETH_QDIO_BUF_EMPTY){
4502                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4503                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4504                                         return -EBUSY;
4505                                 }
4506                         }
4507                 } else {
4508                         /* check if we have enough elements (including following
4509                          * free buffers) to handle eddp context */
4510                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4511                                 if (net_ratelimit())
4512                                         PRINT_WARN("eddp tx_dropped 1\n");
4513                                 rc = -EBUSY;
4514                                 goto out;
4515                         }
4516                 }
4517         }
4518         if (ctx == NULL)
4519                 tmp = qeth_fill_buffer(queue, buffer, skb);
4520         else {
4521                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4522                 if (tmp < 0) {
4523                         printk("eddp tx_dropped 2\n");
4524                         rc = - EBUSY;
4525                         goto out;
4526                 }
4527         }
4528         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4529                                   QDIO_MAX_BUFFERS_PER_Q;
4530         flush_count += tmp;
4531 out:
4532         if (flush_count)
4533                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4534         else if (!atomic_read(&queue->set_pci_flags_count))
4535                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4536         /*
4537          * queue->state will go from LOCKED -> UNLOCKED or from
4538          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4539          * (switch packing state or flush buffer to get another pci flag out).
4540          * In that case we will enter this loop
4541          */
4542         while (atomic_dec_return(&queue->state)){
4543                 flush_count = 0;
4544                 start_index = queue->next_buf_to_fill;
4545                 /* check if we can go back to non-packing state */
4546                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4547                 /*
4548                  * check if we need to flush a packing buffer to get a pci
4549                  * flag out on the queue
4550                  */
4551                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4552                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4553                 if (flush_count)
4554                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4555         }
4556         /* at this point the queue is UNLOCKED again */
4557         if (queue->card->options.performance_stats && do_pack)
4558                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4559
4560         return rc;
4561 }
4562
4563 static int
4564 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4565                      struct sk_buff *skb, int elems)
4566 {
4567         int elements_needed = 0;
4568
4569         if (skb_shinfo(skb)->nr_frags > 0)
4570                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4571         if (elements_needed == 0)
4572                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4573                                         + skb->len) >> PAGE_SHIFT);
4574         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4575                 PRINT_ERR("Invalid size of IP packet "
4576                           "(Number=%d / Length=%d). Discarded.\n",
4577                           (elements_needed+elems), skb->len);
4578                 return 0;
4579         }
4580         return elements_needed;
4581 }
4582
4583 static void qeth_tx_csum(struct sk_buff *skb)
4584 {
4585         int tlen;
4586
4587         if (skb->protocol == htons(ETH_P_IP)) {
4588                 tlen = ntohs(ip_hdr(skb)->tot_len) - (ip_hdr(skb)->ihl << 2);
4589                 switch (ip_hdr(skb)->protocol) {
4590                 case IPPROTO_TCP:
4591                         tcp_hdr(skb)->check = 0;
4592                         tcp_hdr(skb)->check = csum_tcpudp_magic(
4593                                 ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
4594                                 tlen, ip_hdr(skb)->protocol,
4595                                 skb_checksum(skb, skb_transport_offset(skb),
4596                                         tlen, 0));
4597                         break;
4598                 case IPPROTO_UDP:
4599                         udp_hdr(skb)->check = 0;
4600                         udp_hdr(skb)->check = csum_tcpudp_magic(
4601                                 ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
4602                                 tlen, ip_hdr(skb)->protocol,
4603                                 skb_checksum(skb, skb_transport_offset(skb),
4604                                         tlen, 0));
4605                         break;
4606                 }
4607         } else if (skb->protocol == htons(ETH_P_IPV6)) {
4608                 switch (ipv6_hdr(skb)->nexthdr) {
4609                 case IPPROTO_TCP:
4610                         tcp_hdr(skb)->check = 0;
4611                         tcp_hdr(skb)->check = csum_ipv6_magic(
4612                                 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
4613                                 ipv6_hdr(skb)->payload_len,
4614                                 ipv6_hdr(skb)->nexthdr,
4615                                 skb_checksum(skb, skb_transport_offset(skb),
4616                                         ipv6_hdr(skb)->payload_len, 0));
4617                         break;
4618                 case IPPROTO_UDP:
4619                         udp_hdr(skb)->check = 0;
4620                         udp_hdr(skb)->check = csum_ipv6_magic(
4621                                 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
4622                                 ipv6_hdr(skb)->payload_len,
4623                                 ipv6_hdr(skb)->nexthdr,
4624                                 skb_checksum(skb, skb_transport_offset(skb),
4625                                         ipv6_hdr(skb)->payload_len, 0));
4626                         break;
4627                 }
4628         }
4629 }
4630
4631 static int
4632 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4633 {
4634         int ipv = 0;
4635         int cast_type;
4636         struct qeth_qdio_out_q *queue;
4637         struct qeth_hdr *hdr = NULL;
4638         int elements_needed = 0;
4639         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4640         struct qeth_eddp_context *ctx = NULL;
4641         int tx_bytes = skb->len;
4642         unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4643         unsigned short tso_size = skb_shinfo(skb)->gso_size;
4644         struct sk_buff *new_skb, *new_skb2;
4645         int rc;
4646
4647         QETH_DBF_TEXT(trace, 6, "sendpkt");
4648
4649         new_skb = skb;
4650         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4651             (skb->protocol == htons(ETH_P_IPV6)))
4652                 return -EPERM;
4653         cast_type = qeth_get_cast_type(card, skb);
4654         if ((cast_type == RTN_BROADCAST) &&
4655             (card->info.broadcast_capable == 0))
4656                 return -EPERM;
4657         queue = card->qdio.out_qs
4658                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4659         if (!card->options.layer2) {
4660                 ipv = qeth_get_ip_version(skb);
4661                 if ((card->dev->header_ops == &qeth_fake_ops) && ipv) {
4662                         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4663                         if (!new_skb)
4664                                 return -ENOMEM;
4665                         if(card->dev->type == ARPHRD_IEEE802_TR){
4666                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4667                         } else {
4668                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4669                         }
4670                 }
4671         }
4672         if (skb_is_gso(skb))
4673                 large_send = card->options.large_send;
4674         /* check on OSN device*/
4675         if (card->info.type == QETH_CARD_TYPE_OSN)
4676                 hdr = (struct qeth_hdr *)new_skb->data;
4677         /*are we able to do TSO ? */
4678         if ((large_send == QETH_LARGE_SEND_TSO) &&
4679             (cast_type == RTN_UNSPEC)) {
4680                 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4681                 if (rc) {
4682                         __qeth_free_new_skb(skb, new_skb);
4683                         return rc;
4684                 }
4685                 elements_needed++;
4686         } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4687                 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4688                 if (!new_skb2) {
4689                         __qeth_free_new_skb(skb, new_skb);
4690                         return -EINVAL;
4691                 }
4692                 if (new_skb != skb)
4693                         __qeth_free_new_skb(new_skb2, new_skb);
4694                 new_skb = new_skb2;
4695                 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4696         }
4697         if (large_send == QETH_LARGE_SEND_EDDP) {
4698                 ctx = qeth_eddp_create_context(card, new_skb, hdr,
4699                                                skb->sk->sk_protocol);
4700                 if (ctx == NULL) {
4701                         __qeth_free_new_skb(skb, new_skb);
4702                         PRINT_WARN("could not create eddp context\n");
4703                         return -EINVAL;
4704                 }
4705         } else {
4706                 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4707                                                  elements_needed);
4708                 if (!elems) {
4709                         __qeth_free_new_skb(skb, new_skb);
4710                         return -EINVAL;
4711                 }
4712                 elements_needed += elems;
4713         }
4714
4715         if ((large_send == QETH_LARGE_SEND_NO) &&
4716             (skb->ip_summed == CHECKSUM_PARTIAL))
4717                 qeth_tx_csum(new_skb);
4718
4719         if (card->info.type != QETH_CARD_TYPE_IQD)
4720                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4721                                          elements_needed, ctx);
4722         else {
4723                 if ((!card->options.layer2) &&
4724                     (ipv == 0)) {
4725                         __qeth_free_new_skb(skb, new_skb);
4726                         return -EPERM;
4727                 }
4728                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4729                                               elements_needed, ctx);
4730         }
4731         if (!rc) {
4732                 card->stats.tx_packets++;
4733                 card->stats.tx_bytes += tx_bytes;
4734                 if (new_skb != skb)
4735                         dev_kfree_skb_any(skb);
4736                 if (card->options.performance_stats) {
4737                         if (tso_size &&
4738                             !(large_send == QETH_LARGE_SEND_NO)) {
4739                                 card->perf_stats.large_send_bytes += tx_bytes;
4740                                 card->perf_stats.large_send_cnt++;
4741                         }
4742                         if (nr_frags > 0) {
4743                                 card->perf_stats.sg_skbs_sent++;
4744                                 /* nr_frags + skb->data */
4745                                 card->perf_stats.sg_frags_sent +=
4746                                         nr_frags + 1;
4747                         }
4748                 }
4749         } else {
4750                 card->stats.tx_dropped++;
4751                 __qeth_free_new_skb(skb, new_skb);
4752         }
4753         if (ctx != NULL) {
4754                 /* drop creator's reference */
4755                 qeth_eddp_put_context(ctx);
4756                 /* free skb; it's not referenced by a buffer */
4757                 if (!rc)
4758                        dev_kfree_skb_any(new_skb);
4759         }
4760         return rc;
4761 }
4762
4763 static int
4764 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4765 {
4766         struct qeth_card *card = (struct qeth_card *) dev->priv;
4767         int rc = 0;
4768
4769         switch(regnum){
4770         case MII_BMCR: /* Basic mode control register */
4771                 rc = BMCR_FULLDPLX;
4772                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4773                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4774                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4775                         rc |= BMCR_SPEED100;
4776                 break;
4777         case MII_BMSR: /* Basic mode status register */
4778                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4779                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4780                      BMSR_100BASE4;
4781                 break;
4782         case MII_PHYSID1: /* PHYS ID 1 */
4783                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4784                      dev->dev_addr[2];
4785                 rc = (rc >> 5) & 0xFFFF;
4786                 break;
4787         case MII_PHYSID2: /* PHYS ID 2 */
4788                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4789                 break;
4790         case MII_ADVERTISE: /* Advertisement control reg */
4791                 rc = ADVERTISE_ALL;
4792                 break;
4793         case MII_LPA: /* Link partner ability reg */
4794                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4795                      LPA_100BASE4 | LPA_LPACK;
4796                 break;
4797         case MII_EXPANSION: /* Expansion register */
4798                 break;
4799         case MII_DCOUNTER: /* disconnect counter */
4800                 break;
4801         case MII_FCSCOUNTER: /* false carrier counter */
4802                 break;
4803         case MII_NWAYTEST: /* N-way auto-neg test register */
4804                 break;
4805         case MII_RERRCOUNTER: /* rx error counter */
4806                 rc = card->stats.rx_errors;
4807                 break;
4808         case MII_SREVISION: /* silicon revision */
4809                 break;
4810         case MII_RESV1: /* reserved 1 */
4811                 break;
4812         case MII_LBRERROR: /* loopback, rx, bypass error */
4813                 break;
4814         case MII_PHYADDR: /* physical address */
4815                 break;
4816         case MII_RESV2: /* reserved 2 */
4817                 break;
4818         case MII_TPISTATUS: /* TPI status for 10mbps */
4819                 break;
4820         case MII_NCONFIG: /* network interface config */
4821                 break;
4822         default:
4823                 break;
4824         }
4825         return rc;
4826 }
4827
4828
4829 static const char *
4830 qeth_arp_get_error_cause(int *rc)
4831 {
4832         switch (*rc) {
4833         case QETH_IPA_ARP_RC_FAILED:
4834                 *rc = -EIO;
4835                 return "operation failed";
4836         case QETH_IPA_ARP_RC_NOTSUPP:
4837                 *rc = -EOPNOTSUPP;
4838                 return "operation not supported";
4839         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4840                 *rc = -EINVAL;
4841                 return "argument out of range";
4842         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4843                 *rc = -EOPNOTSUPP;
4844                 return "query operation not supported";
4845         case QETH_IPA_ARP_RC_Q_NO_DATA:
4846                 *rc = -ENOENT;
4847                 return "no query data available";
4848         default:
4849                 return "unknown error";
4850         }
4851 }
4852
4853 static int
4854 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4855                              __u16, long);
4856
4857 static int
4858 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4859 {
4860         int tmp;
4861         int rc;
4862
4863         QETH_DBF_TEXT(trace,3,"arpstnoe");
4864
4865         /*
4866          * currently GuestLAN only supports the ARP assist function
4867          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4868          * thus we say EOPNOTSUPP for this ARP function
4869          */
4870         if (card->info.guestlan)
4871                 return -EOPNOTSUPP;
4872         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4873                 PRINT_WARN("ARP processing not supported "
4874                            "on %s!\n", QETH_CARD_IFNAME(card));
4875                 return -EOPNOTSUPP;
4876         }
4877         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4878                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4879                                           no_entries);
4880         if (rc) {
4881                 tmp = rc;
4882                 PRINT_WARN("Could not set number of ARP entries on %s: "
4883                            "%s (0x%x/%d)\n",
4884                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4885                            tmp, tmp);
4886         }
4887         return rc;
4888 }
4889
4890 static void
4891 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4892                                struct qeth_arp_query_data *qdata,
4893                                int entry_size, int uentry_size)
4894 {
4895         char *entry_ptr;
4896         char *uentry_ptr;
4897         int i;
4898
4899         entry_ptr = (char *)&qdata->data;
4900         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4901         for (i = 0; i < qdata->no_entries; ++i){
4902                 /* strip off 32 bytes "media specific information" */
4903                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4904                 entry_ptr += entry_size;
4905                 uentry_ptr += uentry_size;
4906         }
4907 }
4908
4909 static int
4910 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4911                   unsigned long data)
4912 {
4913         struct qeth_ipa_cmd *cmd;
4914         struct qeth_arp_query_data *qdata;
4915         struct qeth_arp_query_info *qinfo;
4916         int entry_size;
4917         int uentry_size;
4918         int i;
4919
4920         QETH_DBF_TEXT(trace,4,"arpquecb");
4921
4922         qinfo = (struct qeth_arp_query_info *) reply->param;
4923         cmd = (struct qeth_ipa_cmd *) data;
4924         if (cmd->hdr.return_code) {
4925                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4926                 return 0;
4927         }
4928         if (cmd->data.setassparms.hdr.return_code) {
4929                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4930                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4931                 return 0;
4932         }
4933         qdata = &cmd->data.setassparms.data.query_arp;
4934         switch(qdata->reply_bits){
4935         case 5:
4936                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4937                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4938                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4939                 break;
4940         case 7:
4941                 /* fall through to default */
4942         default:
4943                 /* tr is the same as eth -> entry7 */
4944                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4945                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4946                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4947                 break;
4948         }
4949         /* check if there is enough room in userspace */
4950         if ((qinfo->udata_len - qinfo->udata_offset) <
4951                         qdata->no_entries * uentry_size){
4952                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4953                 cmd->hdr.return_code = -ENOMEM;
4954                 PRINT_WARN("query ARP user space buffer is too small for "
4955                            "the returned number of ARP entries. "
4956                            "Aborting query!\n");
4957                 goto out_error;
4958         }
4959         QETH_DBF_TEXT_(trace, 4, "anore%i",
4960                        cmd->data.setassparms.hdr.number_of_replies);
4961         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4962         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4963
4964         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4965                 /* strip off "media specific information" */
4966                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4967                                                uentry_size);
4968         } else
4969                 /*copy entries to user buffer*/
4970                 memcpy(qinfo->udata + qinfo->udata_offset,
4971                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4972
4973         qinfo->no_entries += qdata->no_entries;
4974         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4975         /* check if all replies received ... */
4976         if (cmd->data.setassparms.hdr.seq_no <
4977             cmd->data.setassparms.hdr.number_of_replies)
4978                 return 1;
4979         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4980         /* keep STRIP_ENTRIES flag so the user program can distinguish
4981          * stripped entries from normal ones */
4982         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4983                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4984         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4985         return 0;
4986 out_error:
4987         i = 0;
4988         memcpy(qinfo->udata, &i, 4);
4989         return 0;
4990 }
4991
4992 static int
4993 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4994                       int len, int (*reply_cb)(struct qeth_card *,
4995                                                struct qeth_reply *,
4996                                                unsigned long),
4997                       void *reply_param)
4998 {
4999         QETH_DBF_TEXT(trace,4,"sendarp");
5000
5001         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
5002         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
5003                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
5004         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
5005                                       reply_cb, reply_param);
5006 }
5007
5008 static int
5009 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
5010                       int len, int (*reply_cb)(struct qeth_card *,
5011                                                struct qeth_reply *,
5012                                                unsigned long),
5013                       void *reply_param)
5014 {
5015         u16 s1, s2;
5016
5017         QETH_DBF_TEXT(trace,4,"sendsnmp");
5018
5019         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
5020         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
5021                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
5022         /* adjust PDU length fields in IPA_PDU_HEADER */
5023         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
5024         s2 = (u32) len;
5025         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
5026         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
5027         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
5028         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
5029         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
5030                                       reply_cb, reply_param);
5031 }
5032
5033 static struct qeth_cmd_buffer *
5034 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
5035                          __u16, __u16, enum qeth_prot_versions);
5036 static int
5037 qeth_arp_query(struct qeth_card *card, char __user *udata)
5038 {
5039         struct qeth_cmd_buffer *iob;
5040         struct qeth_arp_query_info qinfo = {0, };
5041         int tmp;
5042         int rc;
5043
5044         QETH_DBF_TEXT(trace,3,"arpquery");
5045
5046         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
5047                                IPA_ARP_PROCESSING)) {
5048                 PRINT_WARN("ARP processing not supported "
5049                            "on %s!\n", QETH_CARD_IFNAME(card));
5050                 return -EOPNOTSUPP;
5051         }
5052         /* get size of userspace buffer and mask_bits -> 6 bytes */
5053         if (copy_from_user(&qinfo, udata, 6))
5054                 return -EFAULT;
5055         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
5056                 return -ENOMEM;
5057         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
5058         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5059                                        IPA_CMD_ASS_ARP_QUERY_INFO,
5060                                        sizeof(int),QETH_PROT_IPV4);
5061
5062         rc = qeth_send_ipa_arp_cmd(card, iob,
5063                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
5064                                    qeth_arp_query_cb, (void *)&qinfo);
5065         if (rc) {
5066                 tmp = rc;
5067                 PRINT_WARN("Error while querying ARP cache on %s: %s "
5068                            "(0x%x/%d)\n",
5069                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5070                            tmp, tmp);
5071                 if (copy_to_user(udata, qinfo.udata, 4))
5072                         rc = -EFAULT;
5073         } else {
5074                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5075                         rc = -EFAULT;
5076         }
5077         kfree(qinfo.udata);
5078         return rc;
5079 }
5080
5081 /**
5082  * SNMP command callback
5083  */
5084 static int
5085 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
5086                      unsigned long sdata)
5087 {
5088         struct qeth_ipa_cmd *cmd;
5089         struct qeth_arp_query_info *qinfo;
5090         struct qeth_snmp_cmd *snmp;
5091         unsigned char *data;
5092         __u16 data_len;
5093
5094         QETH_DBF_TEXT(trace,3,"snpcmdcb");
5095
5096         cmd = (struct qeth_ipa_cmd *) sdata;
5097         data = (unsigned char *)((char *)cmd - reply->offset);
5098         qinfo = (struct qeth_arp_query_info *) reply->param;
5099         snmp = &cmd->data.setadapterparms.data.snmp;
5100
5101         if (cmd->hdr.return_code) {
5102                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
5103                 return 0;
5104         }
5105         if (cmd->data.setadapterparms.hdr.return_code) {
5106                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5107                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
5108                 return 0;
5109         }
5110         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
5111         if (cmd->data.setadapterparms.hdr.seq_no == 1)
5112                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
5113         else
5114                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
5115
5116         /* check if there is enough room in userspace */
5117         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
5118                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
5119                 cmd->hdr.return_code = -ENOMEM;
5120                 return 0;
5121         }
5122         QETH_DBF_TEXT_(trace, 4, "snore%i",
5123                        cmd->data.setadapterparms.hdr.used_total);
5124         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
5125         /*copy entries to user buffer*/
5126         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
5127                 memcpy(qinfo->udata + qinfo->udata_offset,
5128                        (char *)snmp,
5129                        data_len + offsetof(struct qeth_snmp_cmd,data));
5130                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
5131         } else {
5132                 memcpy(qinfo->udata + qinfo->udata_offset,
5133                        (char *)&snmp->request, data_len);
5134         }
5135         qinfo->udata_offset += data_len;
5136         /* check if all replies received ... */
5137                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
5138                                cmd->data.setadapterparms.hdr.used_total);
5139                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
5140                                cmd->data.setadapterparms.hdr.seq_no);
5141         if (cmd->data.setadapterparms.hdr.seq_no <
5142             cmd->data.setadapterparms.hdr.used_total)
5143                 return 1;
5144         return 0;
5145 }
5146
5147 static struct qeth_cmd_buffer *
5148 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
5149                        enum qeth_prot_versions );
5150
5151 static struct qeth_cmd_buffer *
5152 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
5153 {
5154         struct qeth_cmd_buffer *iob;
5155         struct qeth_ipa_cmd *cmd;
5156
5157         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
5158                                      QETH_PROT_IPV4);
5159         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5160         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
5161         cmd->data.setadapterparms.hdr.command_code = command;
5162         cmd->data.setadapterparms.hdr.used_total = 1;
5163         cmd->data.setadapterparms.hdr.seq_no = 1;
5164
5165         return iob;
5166 }
5167
5168 /**
5169  * function to send SNMP commands to OSA-E card
5170  */
5171 static int
5172 qeth_snmp_command(struct qeth_card *card, char __user *udata)
5173 {
5174         struct qeth_cmd_buffer *iob;
5175         struct qeth_ipa_cmd *cmd;
5176         struct qeth_snmp_ureq *ureq;
5177         int req_len;
5178         struct qeth_arp_query_info qinfo = {0, };
5179         int rc = 0;
5180
5181         QETH_DBF_TEXT(trace,3,"snmpcmd");
5182
5183         if (card->info.guestlan)
5184                 return -EOPNOTSUPP;
5185
5186         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
5187             (!card->options.layer2) ) {
5188                 PRINT_WARN("SNMP Query MIBS not supported "
5189                            "on %s!\n", QETH_CARD_IFNAME(card));
5190                 return -EOPNOTSUPP;
5191         }
5192         /* skip 4 bytes (data_len struct member) to get req_len */
5193         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
5194                 return -EFAULT;
5195         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
5196         if (!ureq) {
5197                 QETH_DBF_TEXT(trace, 2, "snmpnome");
5198                 return -ENOMEM;
5199         }
5200         if (copy_from_user(ureq, udata,
5201                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
5202                 kfree(ureq);
5203                 return -EFAULT;
5204         }
5205         qinfo.udata_len = ureq->hdr.data_len;
5206         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
5207                 kfree(ureq);
5208                 return -ENOMEM;
5209         }
5210         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5211
5212         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5213                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
5214         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5215         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5216         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5217                                     qeth_snmp_command_cb, (void *)&qinfo);
5218         if (rc)
5219                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5220                            QETH_CARD_IFNAME(card), rc);
5221         else {
5222                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5223                         rc = -EFAULT;
5224         }
5225
5226         kfree(ureq);
5227         kfree(qinfo.udata);
5228         return rc;
5229 }
5230
5231 static int
5232 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5233                             unsigned long);
5234
5235 static int
5236 qeth_default_setadapterparms_cb(struct qeth_card *card,
5237                                 struct qeth_reply *reply,
5238                                 unsigned long data);
5239 static int
5240 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5241                       __u16, long,
5242                       int (*reply_cb)
5243                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5244                       void *reply_param);
5245
5246 static int
5247 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5248 {
5249         struct qeth_cmd_buffer *iob;
5250         char buf[16];
5251         int tmp;
5252         int rc;
5253
5254         QETH_DBF_TEXT(trace,3,"arpadent");
5255
5256         /*
5257          * currently GuestLAN only supports the ARP assist function
5258          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5259          * thus we say EOPNOTSUPP for this ARP function
5260          */
5261         if (card->info.guestlan)
5262                 return -EOPNOTSUPP;
5263         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5264                 PRINT_WARN("ARP processing not supported "
5265                            "on %s!\n", QETH_CARD_IFNAME(card));
5266                 return -EOPNOTSUPP;
5267         }
5268
5269         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5270                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5271                                        sizeof(struct qeth_arp_cache_entry),
5272                                        QETH_PROT_IPV4);
5273         rc = qeth_send_setassparms(card, iob,
5274                                    sizeof(struct qeth_arp_cache_entry),
5275                                    (unsigned long) entry,
5276                                    qeth_default_setassparms_cb, NULL);
5277         if (rc) {
5278                 tmp = rc;
5279                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5280                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5281                            "%s (0x%x/%d)\n",
5282                            buf, QETH_CARD_IFNAME(card),
5283                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5284         }
5285         return rc;
5286 }
5287
5288 static int
5289 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5290 {
5291         struct qeth_cmd_buffer *iob;
5292         char buf[16] = {0, };
5293         int tmp;
5294         int rc;
5295
5296         QETH_DBF_TEXT(trace,3,"arprment");
5297
5298         /*
5299          * currently GuestLAN only supports the ARP assist function
5300          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5301          * thus we say EOPNOTSUPP for this ARP function
5302          */
5303         if (card->info.guestlan)
5304                 return -EOPNOTSUPP;
5305         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5306                 PRINT_WARN("ARP processing not supported "
5307                            "on %s!\n", QETH_CARD_IFNAME(card));
5308                 return -EOPNOTSUPP;
5309         }
5310         memcpy(buf, entry, 12);
5311         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5312                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5313                                        12,
5314                                        QETH_PROT_IPV4);
5315         rc = qeth_send_setassparms(card, iob,
5316                                    12, (unsigned long)buf,
5317                                    qeth_default_setassparms_cb, NULL);
5318         if (rc) {
5319                 tmp = rc;
5320                 memset(buf, 0, 16);
5321                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5322                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5323                            "%s (0x%x/%d)\n",
5324                            buf, QETH_CARD_IFNAME(card),
5325                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5326         }
5327         return rc;
5328 }
5329
5330 static int
5331 qeth_arp_flush_cache(struct qeth_card *card)
5332 {
5333         int rc;
5334         int tmp;
5335
5336         QETH_DBF_TEXT(trace,3,"arpflush");
5337
5338         /*
5339          * currently GuestLAN only supports the ARP assist function
5340          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5341          * thus we say EOPNOTSUPP for this ARP function
5342         */
5343         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5344                 return -EOPNOTSUPP;
5345         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5346                 PRINT_WARN("ARP processing not supported "
5347                            "on %s!\n", QETH_CARD_IFNAME(card));
5348                 return -EOPNOTSUPP;
5349         }
5350         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5351                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5352         if (rc){
5353                 tmp = rc;
5354                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5355                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5356                            tmp, tmp);
5357         }
5358         return rc;
5359 }
5360
5361 static int
5362 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5363 {
5364         struct qeth_card *card = (struct qeth_card *)dev->priv;
5365         struct qeth_arp_cache_entry arp_entry;
5366         struct mii_ioctl_data *mii_data;
5367         int rc = 0;
5368
5369         if (!card)
5370                 return -ENODEV;
5371
5372         if ((card->state != CARD_STATE_UP) &&
5373             (card->state != CARD_STATE_SOFTSETUP))
5374                 return -ENODEV;
5375
5376         if (card->info.type == QETH_CARD_TYPE_OSN)
5377                 return -EPERM;
5378
5379         switch (cmd){
5380         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5381                 if ( !capable(CAP_NET_ADMIN) ||
5382                      (card->options.layer2) ) {
5383                         rc = -EPERM;
5384                         break;
5385                 }
5386                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5387                 break;
5388         case SIOC_QETH_ARP_QUERY_INFO:
5389                 if ( !capable(CAP_NET_ADMIN) ||
5390                      (card->options.layer2) ) {
5391                         rc = -EPERM;
5392                         break;
5393                 }
5394                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5395                 break;
5396         case SIOC_QETH_ARP_ADD_ENTRY:
5397                 if ( !capable(CAP_NET_ADMIN) ||
5398                      (card->options.layer2) ) {
5399                         rc = -EPERM;
5400                         break;
5401                 }
5402                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5403                                    sizeof(struct qeth_arp_cache_entry)))
5404                         rc = -EFAULT;
5405                 else
5406                         rc = qeth_arp_add_entry(card, &arp_entry);
5407                 break;
5408         case SIOC_QETH_ARP_REMOVE_ENTRY:
5409                 if ( !capable(CAP_NET_ADMIN) ||
5410                      (card->options.layer2) ) {
5411                         rc = -EPERM;
5412                         break;
5413                 }
5414                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5415                                    sizeof(struct qeth_arp_cache_entry)))
5416                         rc = -EFAULT;
5417                 else
5418                         rc = qeth_arp_remove_entry(card, &arp_entry);
5419                 break;
5420         case SIOC_QETH_ARP_FLUSH_CACHE:
5421                 if ( !capable(CAP_NET_ADMIN) ||
5422                      (card->options.layer2) ) {
5423                         rc = -EPERM;
5424                         break;
5425                 }
5426                 rc = qeth_arp_flush_cache(card);
5427                 break;
5428         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5429                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5430                 break;
5431         case SIOC_QETH_GET_CARD_TYPE:
5432                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5433                     !card->info.guestlan)
5434                         return 1;
5435                 return 0;
5436                 break;
5437         case SIOCGMIIPHY:
5438                 mii_data = if_mii(rq);
5439                 mii_data->phy_id = 0;
5440                 break;
5441         case SIOCGMIIREG:
5442                 mii_data = if_mii(rq);
5443                 if (mii_data->phy_id != 0)
5444                         rc = -EINVAL;
5445                 else
5446                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5447                                                            mii_data->reg_num);
5448                 break;
5449         default:
5450                 rc = -EOPNOTSUPP;
5451         }
5452         if (rc)
5453                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5454         return rc;
5455 }
5456
5457 static struct net_device_stats *
5458 qeth_get_stats(struct net_device *dev)
5459 {
5460         struct qeth_card *card;
5461
5462         card = (struct qeth_card *) (dev->priv);
5463
5464         QETH_DBF_TEXT(trace,5,"getstat");
5465
5466         return &card->stats;
5467 }
5468
5469 static int
5470 qeth_change_mtu(struct net_device *dev, int new_mtu)
5471 {
5472         struct qeth_card *card;
5473         char dbf_text[15];
5474
5475         card = (struct qeth_card *) (dev->priv);
5476
5477         QETH_DBF_TEXT(trace,4,"chgmtu");
5478         sprintf(dbf_text, "%8x", new_mtu);
5479         QETH_DBF_TEXT(trace,4,dbf_text);
5480
5481         if (new_mtu < 64)
5482                 return -EINVAL;
5483         if (new_mtu > 65535)
5484                 return -EINVAL;
5485         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5486             (!qeth_mtu_is_valid(card, new_mtu)))
5487                 return -EINVAL;
5488         dev->mtu = new_mtu;
5489         return 0;
5490 }
5491
5492 #ifdef CONFIG_QETH_VLAN
5493 static void
5494 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5495 {
5496         struct qeth_card *card;
5497         unsigned long flags;
5498
5499         QETH_DBF_TEXT(trace,4,"vlanreg");
5500
5501         card = (struct qeth_card *) dev->priv;
5502         spin_lock_irqsave(&card->vlanlock, flags);
5503         card->vlangrp = grp;
5504         spin_unlock_irqrestore(&card->vlanlock, flags);
5505 }
5506
5507 static void
5508 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5509                       unsigned short vid)
5510 {
5511         int i;
5512         struct sk_buff *skb;
5513         struct sk_buff_head tmp_list;
5514
5515         skb_queue_head_init(&tmp_list);
5516         lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5517         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5518                 while ((skb = skb_dequeue(&buf->skb_list))){
5519                         if (vlan_tx_tag_present(skb) &&
5520                             (vlan_tx_tag_get(skb) == vid)) {
5521                                 atomic_dec(&skb->users);
5522                                 dev_kfree_skb(skb);
5523                         } else
5524                                 skb_queue_tail(&tmp_list, skb);
5525                 }
5526         }
5527         while ((skb = skb_dequeue(&tmp_list)))
5528                 skb_queue_tail(&buf->skb_list, skb);
5529 }
5530
5531 static void
5532 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5533 {
5534         int i, j;
5535
5536         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5537         for (i = 0; i < card->qdio.no_out_queues; ++i){
5538                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5539                         qeth_free_vlan_buffer(card, &card->qdio.
5540                                               out_qs[i]->bufs[j], vid);
5541         }
5542 }
5543
5544 static void
5545 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5546 {
5547         struct in_device *in_dev;
5548         struct in_ifaddr *ifa;
5549         struct qeth_ipaddr *addr;
5550
5551         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5552
5553         rcu_read_lock();
5554         in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
5555         if (!in_dev)
5556                 goto out;
5557         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5558                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5559                 if (addr){
5560                         addr->u.a4.addr = ifa->ifa_address;
5561                         addr->u.a4.mask = ifa->ifa_mask;
5562                         addr->type = QETH_IP_TYPE_NORMAL;
5563                         if (!qeth_delete_ip(card, addr))
5564                                 kfree(addr);
5565                 }
5566         }
5567 out:
5568         rcu_read_unlock();
5569 }
5570
5571 static void
5572 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5573 {
5574 #ifdef CONFIG_QETH_IPV6
5575         struct inet6_dev *in6_dev;
5576         struct inet6_ifaddr *ifa;
5577         struct qeth_ipaddr *addr;
5578
5579         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5580
5581         in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
5582         if (!in6_dev)
5583                 return;
5584         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5585                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5586                 if (addr){
5587                         memcpy(&addr->u.a6.addr, &ifa->addr,
5588                                sizeof(struct in6_addr));
5589                         addr->u.a6.pfxlen = ifa->prefix_len;
5590                         addr->type = QETH_IP_TYPE_NORMAL;
5591                         if (!qeth_delete_ip(card, addr))
5592                                 kfree(addr);
5593                 }
5594         }
5595         in6_dev_put(in6_dev);
5596 #endif /* CONFIG_QETH_IPV6 */
5597 }
5598
5599 static void
5600 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5601 {
5602         if (card->options.layer2 || !card->vlangrp)
5603                 return;
5604         qeth_free_vlan_addresses4(card, vid);
5605         qeth_free_vlan_addresses6(card, vid);
5606 }
5607
5608 static int
5609 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5610                                struct qeth_reply *reply,
5611                                unsigned long data)
5612 {
5613         struct qeth_ipa_cmd *cmd;
5614
5615         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5616         cmd = (struct qeth_ipa_cmd *) data;
5617         if (cmd->hdr.return_code) {
5618                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5619                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5620                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5621                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5622                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5623                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5624         }
5625         return 0;
5626 }
5627
5628 static int
5629 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5630                             enum qeth_ipa_cmds ipacmd)
5631 {
5632         struct qeth_ipa_cmd *cmd;
5633         struct qeth_cmd_buffer *iob;
5634
5635         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5636         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5637         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5638         cmd->data.setdelvlan.vlan_id = i;
5639         return qeth_send_ipa_cmd(card, iob,
5640                                  qeth_layer2_send_setdelvlan_cb, NULL);
5641 }
5642
5643 static void
5644 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5645 {
5646         unsigned short  i;
5647
5648         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5649
5650         if (!card->vlangrp)
5651                 return;
5652         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5653                 if (vlan_group_get_device(card->vlangrp, i) == NULL)
5654                         continue;
5655                 if (clear)
5656                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5657                 else
5658                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5659         }
5660 }
5661
5662 /*add_vid is layer 2 used only ....*/
5663 static void
5664 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5665 {
5666         struct qeth_card *card;
5667
5668         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5669
5670         card = (struct qeth_card *) dev->priv;
5671         if (!card->options.layer2)
5672                 return;
5673         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5674 }
5675
5676 /*... kill_vid used for both modes*/
5677 static void
5678 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5679 {
5680         struct qeth_card *card;
5681         unsigned long flags;
5682
5683         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5684
5685         card = (struct qeth_card *) dev->priv;
5686         /* free all skbs for the vlan device */
5687         qeth_free_vlan_skbs(card, vid);
5688         spin_lock_irqsave(&card->vlanlock, flags);
5689         /* unregister IP addresses of vlan device */
5690         qeth_free_vlan_addresses(card, vid);
5691         vlan_group_set_device(card->vlangrp, vid, NULL);
5692         spin_unlock_irqrestore(&card->vlanlock, flags);
5693         if (card->options.layer2)
5694                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5695         qeth_set_multicast_list(card->dev);
5696 }
5697 #endif
5698 /**
5699  * Examine hardware response to SET_PROMISC_MODE
5700  */
5701 static int
5702 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5703                             struct qeth_reply *reply,
5704                             unsigned long data)
5705 {
5706         struct qeth_ipa_cmd *cmd;
5707         struct qeth_ipacmd_setadpparms *setparms;
5708
5709         QETH_DBF_TEXT(trace,4,"prmadpcb");
5710
5711         cmd = (struct qeth_ipa_cmd *) data;
5712         setparms = &(cmd->data.setadapterparms);
5713
5714         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5715         if (cmd->hdr.return_code) {
5716                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5717                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5718         }
5719         card->info.promisc_mode = setparms->data.mode;
5720         return 0;
5721 }
5722 /*
5723  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5724  */
5725 static void
5726 qeth_setadp_promisc_mode(struct qeth_card *card)
5727 {
5728         enum qeth_ipa_promisc_modes mode;
5729         struct net_device *dev = card->dev;
5730         struct qeth_cmd_buffer *iob;
5731         struct qeth_ipa_cmd *cmd;
5732
5733         QETH_DBF_TEXT(trace, 4, "setprom");
5734
5735         if (((dev->flags & IFF_PROMISC) &&
5736              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5737             (!(dev->flags & IFF_PROMISC) &&
5738              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5739                 return;
5740         mode = SET_PROMISC_MODE_OFF;
5741         if (dev->flags & IFF_PROMISC)
5742                 mode = SET_PROMISC_MODE_ON;
5743         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5744
5745         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5746                         sizeof(struct qeth_ipacmd_setadpparms));
5747         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5748         cmd->data.setadapterparms.data.mode = mode;
5749         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5750 }
5751
5752 /**
5753  * set multicast address on card
5754  */
5755 static void
5756 qeth_set_multicast_list(struct net_device *dev)
5757 {
5758         struct qeth_card *card = (struct qeth_card *) dev->priv;
5759
5760         if (card->info.type == QETH_CARD_TYPE_OSN)
5761                 return ;
5762
5763         QETH_DBF_TEXT(trace, 3, "setmulti");
5764         qeth_delete_mc_addresses(card);
5765         if (card->options.layer2) {
5766                 qeth_layer2_add_multicast(card);
5767                 goto out;
5768         }
5769         qeth_add_multicast_ipv4(card);
5770 #ifdef CONFIG_QETH_IPV6
5771         qeth_add_multicast_ipv6(card);
5772 #endif
5773 out:
5774         qeth_set_ip_addr_list(card);
5775         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5776                 return;
5777         qeth_setadp_promisc_mode(card);
5778 }
5779
5780 static int
5781 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5782 {
5783         return 0;
5784 }
5785
5786 static void
5787 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5788 {
5789         if (dev->type == ARPHRD_IEEE802_TR)
5790                 ip_tr_mc_map(ipm, mac);
5791         else
5792                 ip_eth_mc_map(ipm, mac);
5793 }
5794
5795 static struct qeth_ipaddr *
5796 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5797 {
5798         struct qeth_ipaddr *addr;
5799
5800         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5801         if (addr == NULL) {
5802                 PRINT_WARN("Not enough memory to add address\n");
5803                 return NULL;
5804         }
5805         addr->type = QETH_IP_TYPE_NORMAL;
5806         addr->proto = prot;
5807         return addr;
5808 }
5809
5810 int
5811 qeth_osn_assist(struct net_device *dev,
5812                 void *data,
5813                 int data_len)
5814 {
5815         struct qeth_cmd_buffer *iob;
5816         struct qeth_card *card;
5817         int rc;
5818
5819         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5820         if (!dev)
5821                 return -ENODEV;
5822         card = (struct qeth_card *)dev->priv;
5823         if (!card)
5824                 return -ENODEV;
5825         if ((card->state != CARD_STATE_UP) &&
5826             (card->state != CARD_STATE_SOFTSETUP))
5827                 return -ENODEV;
5828         iob = qeth_wait_for_buffer(&card->write);
5829         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5830         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5831         return rc;
5832 }
5833
5834 static struct net_device *
5835 qeth_netdev_by_devno(unsigned char *read_dev_no)
5836 {
5837         struct qeth_card *card;
5838         struct net_device *ndev;
5839         unsigned char *readno;
5840         __u16 temp_dev_no, card_dev_no;
5841         char *endp;
5842         unsigned long flags;
5843
5844         ndev = NULL;
5845         memcpy(&temp_dev_no, read_dev_no, 2);
5846         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5847         list_for_each_entry(card, &qeth_card_list.list, list) {
5848                 readno = CARD_RDEV_ID(card);
5849                 readno += (strlen(readno) - 4);
5850                 card_dev_no = simple_strtoul(readno, &endp, 16);
5851                 if (card_dev_no == temp_dev_no) {
5852                         ndev = card->dev;
5853                         break;
5854                 }
5855         }
5856         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5857         return ndev;
5858 }
5859
5860 int
5861 qeth_osn_register(unsigned char *read_dev_no,
5862                   struct net_device **dev,
5863                   int (*assist_cb)(struct net_device *, void *),
5864                   int (*data_cb)(struct sk_buff *))
5865 {
5866         struct qeth_card * card;
5867
5868         QETH_DBF_TEXT(trace, 2, "osnreg");
5869         *dev = qeth_netdev_by_devno(read_dev_no);
5870         if (*dev == NULL)
5871                 return -ENODEV;
5872         card = (struct qeth_card *)(*dev)->priv;
5873         if (!card)
5874                 return -ENODEV;
5875         if ((assist_cb == NULL) || (data_cb == NULL))
5876                 return -EINVAL;
5877         card->osn_info.assist_cb = assist_cb;
5878         card->osn_info.data_cb = data_cb;
5879         return 0;
5880 }
5881
5882 void
5883 qeth_osn_deregister(struct net_device * dev)
5884 {
5885         struct qeth_card *card;
5886
5887         QETH_DBF_TEXT(trace, 2, "osndereg");
5888         if (!dev)
5889                 return;
5890         card = (struct qeth_card *)dev->priv;
5891         if (!card)
5892                 return;
5893         card->osn_info.assist_cb = NULL;
5894         card->osn_info.data_cb = NULL;
5895         return;
5896 }
5897
5898 static void
5899 qeth_delete_mc_addresses(struct qeth_card *card)
5900 {
5901         struct qeth_ipaddr *iptodo;
5902         unsigned long flags;
5903
5904         QETH_DBF_TEXT(trace,4,"delmc");
5905         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5906         if (!iptodo) {
5907                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5908                 return;
5909         }
5910         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5911         spin_lock_irqsave(&card->ip_lock, flags);
5912         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5913                 kfree(iptodo);
5914         spin_unlock_irqrestore(&card->ip_lock, flags);
5915 }
5916
5917 static void
5918 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5919 {
5920         struct qeth_ipaddr *ipm;
5921         struct ip_mc_list *im4;
5922         char buf[MAX_ADDR_LEN];
5923
5924         QETH_DBF_TEXT(trace,4,"addmc");
5925         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5926                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5927                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5928                 if (!ipm)
5929                         continue;
5930                 ipm->u.a4.addr = im4->multiaddr;
5931                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5932                 ipm->is_multicast = 1;
5933                 if (!qeth_add_ip(card,ipm))
5934                         kfree(ipm);
5935         }
5936 }
5937
5938 static inline void
5939 qeth_add_vlan_mc(struct qeth_card *card)
5940 {
5941 #ifdef CONFIG_QETH_VLAN
5942         struct in_device *in_dev;
5943         struct vlan_group *vg;
5944         int i;
5945
5946         QETH_DBF_TEXT(trace,4,"addmcvl");
5947         if ( ((card->options.layer2 == 0) &&
5948               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5949              (card->vlangrp == NULL) )
5950                 return ;
5951
5952         vg = card->vlangrp;
5953         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5954                 struct net_device *netdev = vlan_group_get_device(vg, i);
5955                 if (netdev == NULL ||
5956                     !(netdev->flags & IFF_UP))
5957                         continue;
5958                 in_dev = in_dev_get(netdev);
5959                 if (!in_dev)
5960                         continue;
5961                 read_lock(&in_dev->mc_list_lock);
5962                 qeth_add_mc(card,in_dev);
5963                 read_unlock(&in_dev->mc_list_lock);
5964                 in_dev_put(in_dev);
5965         }
5966 #endif
5967 }
5968
5969 static void
5970 qeth_add_multicast_ipv4(struct qeth_card *card)
5971 {
5972         struct in_device *in4_dev;
5973
5974         QETH_DBF_TEXT(trace,4,"chkmcv4");
5975         in4_dev = in_dev_get(card->dev);
5976         if (in4_dev == NULL)
5977                 return;
5978         read_lock(&in4_dev->mc_list_lock);
5979         qeth_add_mc(card, in4_dev);
5980         qeth_add_vlan_mc(card);
5981         read_unlock(&in4_dev->mc_list_lock);
5982         in_dev_put(in4_dev);
5983 }
5984
5985 static void
5986 qeth_layer2_add_multicast(struct qeth_card *card)
5987 {
5988         struct qeth_ipaddr *ipm;
5989         struct dev_mc_list *dm;
5990
5991         QETH_DBF_TEXT(trace,4,"L2addmc");
5992         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5993                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5994                 if (!ipm)
5995                         continue;
5996                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5997                 ipm->is_multicast = 1;
5998                 if (!qeth_add_ip(card, ipm))
5999                         kfree(ipm);
6000         }
6001 }
6002
6003 #ifdef CONFIG_QETH_IPV6
6004 static void
6005 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
6006 {
6007         struct qeth_ipaddr *ipm;
6008         struct ifmcaddr6 *im6;
6009         char buf[MAX_ADDR_LEN];
6010
6011         QETH_DBF_TEXT(trace,4,"addmc6");
6012         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
6013                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
6014                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
6015                 if (!ipm)
6016                         continue;
6017                 ipm->is_multicast = 1;
6018                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
6019                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
6020                        sizeof(struct in6_addr));
6021                 if (!qeth_add_ip(card,ipm))
6022                         kfree(ipm);
6023         }
6024 }
6025
6026 static inline void
6027 qeth_add_vlan_mc6(struct qeth_card *card)
6028 {
6029 #ifdef CONFIG_QETH_VLAN
6030         struct inet6_dev *in_dev;
6031         struct vlan_group *vg;
6032         int i;
6033
6034         QETH_DBF_TEXT(trace,4,"admc6vl");
6035         if ( ((card->options.layer2 == 0) &&
6036               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
6037              (card->vlangrp == NULL))
6038                 return ;
6039
6040         vg = card->vlangrp;
6041         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
6042                 struct net_device *netdev = vlan_group_get_device(vg, i);
6043                 if (netdev == NULL ||
6044                     !(netdev->flags & IFF_UP))
6045                         continue;
6046                 in_dev = in6_dev_get(netdev);
6047                 if (!in_dev)
6048                         continue;
6049                 read_lock_bh(&in_dev->lock);
6050                 qeth_add_mc6(card,in_dev);
6051                 read_unlock_bh(&in_dev->lock);
6052                 in6_dev_put(in_dev);
6053         }
6054 #endif /* CONFIG_QETH_VLAN */
6055 }
6056
6057 static void
6058 qeth_add_multicast_ipv6(struct qeth_card *card)
6059 {
6060         struct inet6_dev *in6_dev;
6061
6062         QETH_DBF_TEXT(trace,4,"chkmcv6");
6063         if (!qeth_is_supported(card, IPA_IPV6))
6064                 return ;
6065         in6_dev = in6_dev_get(card->dev);
6066         if (in6_dev == NULL)
6067                 return;
6068         read_lock_bh(&in6_dev->lock);
6069         qeth_add_mc6(card, in6_dev);
6070         qeth_add_vlan_mc6(card);
6071         read_unlock_bh(&in6_dev->lock);
6072         in6_dev_put(in6_dev);
6073 }
6074 #endif /* CONFIG_QETH_IPV6 */
6075
6076 static int
6077 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
6078                            enum qeth_ipa_cmds ipacmd,
6079                            int (*reply_cb) (struct qeth_card *,
6080                                             struct qeth_reply*,
6081                                             unsigned long))
6082 {
6083         struct qeth_ipa_cmd *cmd;
6084         struct qeth_cmd_buffer *iob;
6085
6086         QETH_DBF_TEXT(trace, 2, "L2sdmac");
6087         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
6088         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6089         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
6090         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
6091         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
6092 }
6093
6094 static int
6095 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
6096                                 struct qeth_reply *reply,
6097                                 unsigned long data)
6098 {
6099         struct qeth_ipa_cmd *cmd;
6100         __u8 *mac;
6101
6102         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
6103         cmd = (struct qeth_ipa_cmd *) data;
6104         mac = &cmd->data.setdelmac.mac[0];
6105         /* MAC already registered, needed in couple/uncouple case */
6106         if (cmd->hdr.return_code == 0x2005) {
6107                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
6108                           "already existing on %s \n",
6109                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6110                           QETH_CARD_IFNAME(card));
6111                 cmd->hdr.return_code = 0;
6112         }
6113         if (cmd->hdr.return_code)
6114                 PRINT_ERR("Could not set group MAC " \
6115                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6116                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6117                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
6118         return 0;
6119 }
6120
6121 static int
6122 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
6123 {
6124         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
6125         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
6126                                           qeth_layer2_send_setgroupmac_cb);
6127 }
6128
6129 static int
6130 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
6131                                 struct qeth_reply *reply,
6132                                 unsigned long data)
6133 {
6134         struct qeth_ipa_cmd *cmd;
6135         __u8 *mac;
6136
6137         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
6138         cmd = (struct qeth_ipa_cmd *) data;
6139         mac = &cmd->data.setdelmac.mac[0];
6140         if (cmd->hdr.return_code)
6141                 PRINT_ERR("Could not delete group MAC " \
6142                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6143                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6144                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
6145         return 0;
6146 }
6147
6148 static int
6149 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
6150 {
6151         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
6152         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
6153                                           qeth_layer2_send_delgroupmac_cb);
6154 }
6155
6156 static int
6157 qeth_layer2_send_setmac_cb(struct qeth_card *card,
6158                            struct qeth_reply *reply,
6159                            unsigned long data)
6160 {
6161         struct qeth_ipa_cmd *cmd;
6162
6163         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
6164         cmd = (struct qeth_ipa_cmd *) data;
6165         if (cmd->hdr.return_code) {
6166                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
6167                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6168                 cmd->hdr.return_code = -EIO;
6169         } else {
6170                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
6171                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
6172                        OSA_ADDR_LEN);
6173                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
6174                            "successfully registered on device %s\n",
6175                            card->dev->dev_addr[0], card->dev->dev_addr[1],
6176                            card->dev->dev_addr[2], card->dev->dev_addr[3],
6177                            card->dev->dev_addr[4], card->dev->dev_addr[5],
6178                            card->dev->name);
6179         }
6180         return 0;
6181 }
6182
6183 static int
6184 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
6185 {
6186         QETH_DBF_TEXT(trace, 2, "L2Setmac");
6187         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
6188                                           qeth_layer2_send_setmac_cb);
6189 }
6190
6191 static int
6192 qeth_layer2_send_delmac_cb(struct qeth_card *card,
6193                            struct qeth_reply *reply,
6194                            unsigned long data)
6195 {
6196         struct qeth_ipa_cmd *cmd;
6197
6198         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6199         cmd = (struct qeth_ipa_cmd *) data;
6200         if (cmd->hdr.return_code) {
6201                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6202                 cmd->hdr.return_code = -EIO;
6203                 return 0;
6204         }
6205         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6206
6207         return 0;
6208 }
6209 static int
6210 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6211 {
6212         QETH_DBF_TEXT(trace, 2, "L2Delmac");
6213         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6214                 return 0;
6215         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6216                                           qeth_layer2_send_delmac_cb);
6217 }
6218
6219 static int
6220 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6221 {
6222         struct sockaddr *addr = p;
6223         struct qeth_card *card;
6224         int rc = 0;
6225
6226         QETH_DBF_TEXT(trace, 3, "setmac");
6227
6228         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6229                 QETH_DBF_TEXT(trace, 3, "setmcINV");
6230                 return -EOPNOTSUPP;
6231         }
6232         card = (struct qeth_card *) dev->priv;
6233
6234         if (!card->options.layer2) {
6235                 PRINT_WARN("Setting MAC address on %s is not supported "
6236                            "in Layer 3 mode.\n", dev->name);
6237                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6238                 return -EOPNOTSUPP;
6239         }
6240         if (card->info.type == QETH_CARD_TYPE_OSN) {
6241                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6242                            dev->name);
6243                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6244                 return -EOPNOTSUPP;
6245         }
6246         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6247         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6248         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6249         if (!rc)
6250                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6251         return rc;
6252 }
6253
6254 static void
6255 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6256                         __u8 command, enum qeth_prot_versions prot)
6257 {
6258         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6259         cmd->hdr.command = command;
6260         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6261         cmd->hdr.seqno = card->seqno.ipa;
6262         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6263         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6264         if (card->options.layer2)
6265                 cmd->hdr.prim_version_no = 2;
6266         else
6267                 cmd->hdr.prim_version_no = 1;
6268         cmd->hdr.param_count = 1;
6269         cmd->hdr.prot_version = prot;
6270         cmd->hdr.ipa_supported = 0;
6271         cmd->hdr.ipa_enabled = 0;
6272 }
6273
6274 static struct qeth_cmd_buffer *
6275 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6276                        enum qeth_prot_versions prot)
6277 {
6278         struct qeth_cmd_buffer *iob;
6279         struct qeth_ipa_cmd *cmd;
6280
6281         iob = qeth_wait_for_buffer(&card->write);
6282         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6283         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6284
6285         return iob;
6286 }
6287
6288 static int
6289 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6290 {
6291         int rc;
6292         struct qeth_cmd_buffer *iob;
6293         struct qeth_ipa_cmd *cmd;
6294
6295         QETH_DBF_TEXT(trace,4,"setdelmc");
6296
6297         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6298         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6299         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6300         if (addr->proto == QETH_PROT_IPV6)
6301                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6302                        sizeof(struct in6_addr));
6303         else
6304                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6305
6306         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6307
6308         return rc;
6309 }
6310 static void
6311 qeth_fill_netmask(u8 *netmask, unsigned int len)
6312 {
6313         int i,j;
6314         for (i=0;i<16;i++) {
6315                 j=(len)-(i*8);
6316                 if (j >= 8)
6317                         netmask[i] = 0xff;
6318                 else if (j > 0)
6319                         netmask[i] = (u8)(0xFF00>>j);
6320                 else
6321                         netmask[i] = 0;
6322         }
6323 }
6324
6325 static int
6326 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6327                    int ipacmd, unsigned int flags)
6328 {
6329         int rc;
6330         struct qeth_cmd_buffer *iob;
6331         struct qeth_ipa_cmd *cmd;
6332         __u8 netmask[16];
6333
6334         QETH_DBF_TEXT(trace,4,"setdelip");
6335         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6336
6337         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6338         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6339         if (addr->proto == QETH_PROT_IPV6) {
6340                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6341                        sizeof(struct in6_addr));
6342                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6343                 memcpy(cmd->data.setdelip6.mask, netmask,
6344                        sizeof(struct in6_addr));
6345                 cmd->data.setdelip6.flags = flags;
6346         } else {
6347                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6348                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6349                 cmd->data.setdelip4.flags = flags;
6350         }
6351
6352         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6353
6354         return rc;
6355 }
6356
6357 static int
6358 qeth_layer2_register_addr_entry(struct qeth_card *card,
6359                                 struct qeth_ipaddr *addr)
6360 {
6361         if (!addr->is_multicast)
6362                 return 0;
6363         QETH_DBF_TEXT(trace, 2, "setgmac");
6364         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6365         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6366 }
6367
6368 static int
6369 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6370                                   struct qeth_ipaddr *addr)
6371 {
6372         if (!addr->is_multicast)
6373                 return 0;
6374         QETH_DBF_TEXT(trace, 2, "delgmac");
6375         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6376         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6377 }
6378
6379 static int
6380 qeth_layer3_register_addr_entry(struct qeth_card *card,
6381                                 struct qeth_ipaddr *addr)
6382 {
6383         char buf[50];
6384         int rc;
6385         int cnt = 3;
6386
6387         if (addr->proto == QETH_PROT_IPV4) {
6388                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6389                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6390         } else if (addr->proto == QETH_PROT_IPV6) {
6391                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6392                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6393                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6394         } else {
6395                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6396                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6397         }
6398         do {
6399                 if (addr->is_multicast)
6400                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6401                 else
6402                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6403                                         addr->set_flags);
6404                 if (rc)
6405                         QETH_DBF_TEXT(trace, 2, "failed");
6406         } while ((--cnt > 0) && rc);
6407         if (rc){
6408                 QETH_DBF_TEXT(trace, 2, "FAILED");
6409                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6410                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6411                            buf, rc, rc);
6412         }
6413         return rc;
6414 }
6415
6416 static int
6417 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6418                                   struct qeth_ipaddr *addr)
6419 {
6420         //char buf[50];
6421         int rc;
6422
6423         if (addr->proto == QETH_PROT_IPV4) {
6424                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6425                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6426         } else if (addr->proto == QETH_PROT_IPV6) {
6427                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6428                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6429                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6430         } else {
6431                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6432                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6433         }
6434         if (addr->is_multicast)
6435                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6436         else
6437                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6438                                         addr->del_flags);
6439         if (rc) {
6440                 QETH_DBF_TEXT(trace, 2, "failed");
6441                 /* TODO: re-activate this warning as soon as we have a
6442                  * clean mirco code
6443                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6444                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6445                            buf, rc);
6446                 */
6447         }
6448         return rc;
6449 }
6450
6451 static int
6452 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6453 {
6454         if (card->options.layer2)
6455                 return qeth_layer2_register_addr_entry(card, addr);
6456
6457         return qeth_layer3_register_addr_entry(card, addr);
6458 }
6459
6460 static int
6461 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6462 {
6463         if (card->options.layer2)
6464                 return qeth_layer2_deregister_addr_entry(card, addr);
6465
6466         return qeth_layer3_deregister_addr_entry(card, addr);
6467 }
6468
6469 static u32
6470 qeth_ethtool_get_tx_csum(struct net_device *dev)
6471 {
6472         return (dev->features & NETIF_F_HW_CSUM) != 0;
6473 }
6474
6475 static int
6476 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6477 {
6478         if (data)
6479                 dev->features |= NETIF_F_HW_CSUM;
6480         else
6481                 dev->features &= ~NETIF_F_HW_CSUM;
6482
6483         return 0;
6484 }
6485
6486 static u32
6487 qeth_ethtool_get_rx_csum(struct net_device *dev)
6488 {
6489         struct qeth_card *card = (struct qeth_card *)dev->priv;
6490
6491         return (card->options.checksum_type == HW_CHECKSUMMING);
6492 }
6493
6494 static int
6495 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6496 {
6497         struct qeth_card *card = (struct qeth_card *)dev->priv;
6498
6499         if ((card->state != CARD_STATE_DOWN) &&
6500             (card->state != CARD_STATE_RECOVER))
6501                 return -EPERM;
6502         if (data)
6503                 card->options.checksum_type = HW_CHECKSUMMING;
6504         else
6505                 card->options.checksum_type = SW_CHECKSUMMING;
6506         return 0;
6507 }
6508
6509 static u32
6510 qeth_ethtool_get_sg(struct net_device *dev)
6511 {
6512         struct qeth_card *card = (struct qeth_card *)dev->priv;
6513
6514         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6515                 (dev->features & NETIF_F_SG));
6516 }
6517
6518 static int
6519 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6520 {
6521         struct qeth_card *card = (struct qeth_card *)dev->priv;
6522
6523         if (data) {
6524                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6525                         dev->features |= NETIF_F_SG;
6526                 else {
6527                         dev->features &= ~NETIF_F_SG;
6528                         return -EINVAL;
6529                 }
6530         } else
6531                 dev->features &= ~NETIF_F_SG;
6532         return 0;
6533 }
6534
6535 static u32
6536 qeth_ethtool_get_tso(struct net_device *dev)
6537 {
6538         struct qeth_card *card = (struct qeth_card *)dev->priv;
6539
6540         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6541                 (dev->features & NETIF_F_TSO));
6542 }
6543
6544 static int
6545 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6546 {
6547         struct qeth_card *card = (struct qeth_card *)dev->priv;
6548
6549         if (data) {
6550                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6551                         dev->features |= NETIF_F_TSO;
6552                 else {
6553                         dev->features &= ~NETIF_F_TSO;
6554                         return -EINVAL;
6555                 }
6556         } else
6557                 dev->features &= ~NETIF_F_TSO;
6558         return 0;
6559 }
6560
6561 static struct ethtool_ops qeth_ethtool_ops = {
6562         .get_tx_csum = qeth_ethtool_get_tx_csum,
6563         .set_tx_csum = qeth_ethtool_set_tx_csum,
6564         .get_rx_csum = qeth_ethtool_get_rx_csum,
6565         .set_rx_csum = qeth_ethtool_set_rx_csum,
6566         .get_sg      = qeth_ethtool_get_sg,
6567         .set_sg      = qeth_ethtool_set_sg,
6568         .get_tso     = qeth_ethtool_get_tso,
6569         .set_tso     = qeth_ethtool_set_tso,
6570 };
6571
6572 static int
6573 qeth_hard_header_parse(const struct sk_buff *skb, unsigned char *haddr)
6574 {
6575         const struct qeth_card *card;
6576         const struct ethhdr *eth;
6577
6578         if (dev->type != ARPHRD_IEEE802_TR)
6579                 return 0;
6580
6581         card = qeth_get_card_from_dev(skb->dev);
6582         if (card->options.layer2)
6583                 goto haveheader;
6584 #ifdef CONFIG_QETH_IPV6
6585         /* cause of the manipulated arp constructor and the ARP
6586            flag for OSAE devices we have some nasty exceptions */
6587         if (card->info.type == QETH_CARD_TYPE_OSAE) {
6588                 if (!card->options.fake_ll) {
6589                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6590                             (skb->protocol==ETH_P_IPV6))
6591                                 goto haveheader;
6592                         else
6593                                 return 0;
6594                 } else {
6595                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6596                             (skb->protocol==ETH_P_IP))
6597                                 return 0;
6598                         else
6599                                 goto haveheader;
6600                 }
6601         }
6602 #endif
6603         if (!card->options.fake_ll)
6604                 return 0;
6605 haveheader:
6606         eth = eth_hdr(skb);
6607         memcpy(haddr, eth->h_source, ETH_ALEN);
6608         return ETH_ALEN;
6609 }
6610
6611 static const struct header_ops qeth_null_ops = {
6612         .parse = qeth_hard_header_parse,
6613 };
6614
6615 static int
6616 qeth_netdev_init(struct net_device *dev)
6617 {
6618         struct qeth_card *card;
6619
6620         card = (struct qeth_card *) dev->priv;
6621
6622         QETH_DBF_TEXT(trace,3,"initdev");
6623
6624         dev->tx_timeout = &qeth_tx_timeout;
6625         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6626         dev->open = qeth_open;
6627         dev->stop = qeth_stop;
6628         dev->hard_start_xmit = qeth_hard_start_xmit;
6629         dev->do_ioctl = qeth_do_ioctl;
6630         dev->get_stats = qeth_get_stats;
6631         dev->change_mtu = qeth_change_mtu;
6632         dev->neigh_setup = qeth_neigh_setup;
6633         dev->set_multicast_list = qeth_set_multicast_list;
6634 #ifdef CONFIG_QETH_VLAN
6635         dev->vlan_rx_register = qeth_vlan_rx_register;
6636         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6637         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6638 #endif
6639         dev->header_ops = &qeth_null_ops;
6640
6641 #ifdef CONFIG_QETH_IPV6
6642         /*IPv6 address autoconfiguration stuff*/
6643         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6644                 card->dev->dev_id = card->info.unique_id & 0xffff;
6645 #endif
6646         if (card->options.fake_ll &&
6647                 (qeth_get_netdev_flags(card) & IFF_NOARP))
6648                         dev->header_ops = &qeth_fake_ops;
6649
6650         dev->set_mac_address = qeth_layer2_set_mac_address;
6651         dev->flags |= qeth_get_netdev_flags(card);
6652         if ((card->options.fake_broadcast) ||
6653             (card->info.broadcast_capable))
6654                 dev->flags |= IFF_BROADCAST;
6655         dev->hard_header_len =
6656                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6657         dev->addr_len = OSA_ADDR_LEN;
6658         dev->mtu = card->info.initial_mtu;
6659         if (card->info.type != QETH_CARD_TYPE_OSN)
6660                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6661         return 0;
6662 }
6663
6664 static void
6665 qeth_init_func_level(struct qeth_card *card)
6666 {
6667         if (card->ipato.enabled) {
6668                 if (card->info.type == QETH_CARD_TYPE_IQD)
6669                                 card->info.func_level =
6670                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6671                 else
6672                                 card->info.func_level =
6673                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6674         } else {
6675                 if (card->info.type == QETH_CARD_TYPE_IQD)
6676                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6677                         card->info.func_level =
6678                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6679                 else
6680                         card->info.func_level =
6681                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6682         }
6683 }
6684
6685 /**
6686  * hardsetup card, initialize MPC and QDIO stuff
6687  */
6688 static int
6689 qeth_hardsetup_card(struct qeth_card *card)
6690 {
6691         int retries = 3;
6692         int rc;
6693
6694         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6695
6696         atomic_set(&card->force_alloc_skb, 0);
6697 retry:
6698         if (retries < 3){
6699                 PRINT_WARN("Retrying to do IDX activates.\n");
6700                 ccw_device_set_offline(CARD_DDEV(card));
6701                 ccw_device_set_offline(CARD_WDEV(card));
6702                 ccw_device_set_offline(CARD_RDEV(card));
6703                 ccw_device_set_online(CARD_RDEV(card));
6704                 ccw_device_set_online(CARD_WDEV(card));
6705                 ccw_device_set_online(CARD_DDEV(card));
6706         }
6707         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6708         if (rc == -ERESTARTSYS) {
6709                 QETH_DBF_TEXT(setup, 2, "break1");
6710                 return rc;
6711         } else if (rc) {
6712                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6713                 if (--retries < 0)
6714                         goto out;
6715                 else
6716                         goto retry;
6717         }
6718         if ((rc = qeth_get_unitaddr(card))){
6719                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6720                 return rc;
6721         }
6722         qeth_init_tokens(card);
6723         qeth_init_func_level(card);
6724         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6725         if (rc == -ERESTARTSYS) {
6726                 QETH_DBF_TEXT(setup, 2, "break2");
6727                 return rc;
6728         } else if (rc) {
6729                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6730                 if (--retries < 0)
6731                         goto out;
6732                 else
6733                         goto retry;
6734         }
6735         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6736         if (rc == -ERESTARTSYS) {
6737                 QETH_DBF_TEXT(setup, 2, "break3");
6738                 return rc;
6739         } else if (rc) {
6740                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6741                 if (--retries < 0)
6742                         goto out;
6743                 else
6744                         goto retry;
6745         }
6746         if ((rc = qeth_mpc_initialize(card))){
6747                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6748                 goto out;
6749         }
6750         /*network device will be recovered*/
6751         if (card->dev) {
6752                 card->dev->header_ops = card->orig_header_ops;
6753                 if (card->options.fake_ll &&
6754                     (qeth_get_netdev_flags(card) & IFF_NOARP))
6755                         card->dev->header_ops = &qeth_fake_ops;
6756                 return 0;
6757         }
6758         /* at first set_online allocate netdev */
6759         card->dev = qeth_get_netdevice(card->info.type,
6760                                        card->info.link_type);
6761         if (!card->dev){
6762                 qeth_qdio_clear_card(card, card->info.type !=
6763                                      QETH_CARD_TYPE_IQD);
6764                 rc = -ENODEV;
6765                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6766                 goto out;
6767         }
6768         card->dev->priv = card;
6769         card->orig_header_ops = card->dev->header_ops;
6770         card->dev->type = qeth_get_arphdr_type(card->info.type,
6771                                                card->info.link_type);
6772         card->dev->init = qeth_netdev_init;
6773         return 0;
6774 out:
6775         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6776         return rc;
6777 }
6778
6779 static int
6780 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6781                             unsigned long data)
6782 {
6783         struct qeth_ipa_cmd *cmd;
6784
6785         QETH_DBF_TEXT(trace,4,"defadpcb");
6786
6787         cmd = (struct qeth_ipa_cmd *) data;
6788         if (cmd->hdr.return_code == 0){
6789                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6790                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6791                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6792 #ifdef CONFIG_QETH_IPV6
6793                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6794                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6795 #endif
6796         }
6797         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6798             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6799                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6800                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6801         }
6802         return 0;
6803 }
6804
6805 static int
6806 qeth_default_setadapterparms_cb(struct qeth_card *card,
6807                                 struct qeth_reply *reply,
6808                                 unsigned long data)
6809 {
6810         struct qeth_ipa_cmd *cmd;
6811
6812         QETH_DBF_TEXT(trace,4,"defadpcb");
6813
6814         cmd = (struct qeth_ipa_cmd *) data;
6815         if (cmd->hdr.return_code == 0)
6816                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6817         return 0;
6818 }
6819
6820
6821
6822 static int
6823 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6824                               unsigned long data)
6825 {
6826         struct qeth_ipa_cmd *cmd;
6827
6828         QETH_DBF_TEXT(trace,3,"quyadpcb");
6829
6830         cmd = (struct qeth_ipa_cmd *) data;
6831         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6832                 card->info.link_type =
6833                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6834         card->options.adp.supported_funcs =
6835                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6836         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6837 }
6838
6839 static int
6840 qeth_query_setadapterparms(struct qeth_card *card)
6841 {
6842         int rc;
6843         struct qeth_cmd_buffer *iob;
6844
6845         QETH_DBF_TEXT(trace,3,"queryadp");
6846         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6847                                    sizeof(struct qeth_ipacmd_setadpparms));
6848         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6849         return rc;
6850 }
6851
6852 static int
6853 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6854                                    struct qeth_reply *reply,
6855                                    unsigned long data)
6856 {
6857         struct qeth_ipa_cmd *cmd;
6858
6859         QETH_DBF_TEXT(trace,4,"chgmaccb");
6860
6861         cmd = (struct qeth_ipa_cmd *) data;
6862         if (!card->options.layer2 ||
6863             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6864                 memcpy(card->dev->dev_addr,
6865                        &cmd->data.setadapterparms.data.change_addr.addr,
6866                        OSA_ADDR_LEN);
6867                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6868         }
6869         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6870         return 0;
6871 }
6872
6873 static int
6874 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6875 {
6876         int rc;
6877         struct qeth_cmd_buffer *iob;
6878         struct qeth_ipa_cmd *cmd;
6879
6880         QETH_DBF_TEXT(trace,4,"chgmac");
6881
6882         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6883                                    sizeof(struct qeth_ipacmd_setadpparms));
6884         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6885         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6886         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6887         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6888                card->dev->dev_addr, OSA_ADDR_LEN);
6889         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6890                                NULL);
6891         return rc;
6892 }
6893
6894 static int
6895 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6896 {
6897         int rc;
6898         struct qeth_cmd_buffer *iob;
6899         struct qeth_ipa_cmd *cmd;
6900
6901         QETH_DBF_TEXT(trace,4,"adpmode");
6902
6903         iob = qeth_get_adapter_cmd(card, command,
6904                                    sizeof(struct qeth_ipacmd_setadpparms));
6905         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6906         cmd->data.setadapterparms.data.mode = mode;
6907         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6908                                NULL);
6909         return rc;
6910 }
6911
6912 static int
6913 qeth_setadapter_hstr(struct qeth_card *card)
6914 {
6915         int rc;
6916
6917         QETH_DBF_TEXT(trace,4,"adphstr");
6918
6919         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6920                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6921                                            card->options.broadcast_mode);
6922                 if (rc)
6923                         PRINT_WARN("couldn't set broadcast mode on "
6924                                    "device %s: x%x\n",
6925                                    CARD_BUS_ID(card), rc);
6926                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6927                                            card->options.macaddr_mode);
6928                 if (rc)
6929                         PRINT_WARN("couldn't set macaddr mode on "
6930                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6931                 return rc;
6932         }
6933         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6934                 PRINT_WARN("set adapter parameters not available "
6935                            "to set broadcast mode, using ALLRINGS "
6936                            "on device %s:\n", CARD_BUS_ID(card));
6937         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6938                 PRINT_WARN("set adapter parameters not available "
6939                            "to set macaddr mode, using NONCANONICAL "
6940                            "on device %s:\n", CARD_BUS_ID(card));
6941         return 0;
6942 }
6943
6944 static int
6945 qeth_setadapter_parms(struct qeth_card *card)
6946 {
6947         int rc;
6948
6949         QETH_DBF_TEXT(setup, 2, "setadprm");
6950
6951         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6952                 PRINT_WARN("set adapter parameters not supported "
6953                            "on device %s.\n",
6954                            CARD_BUS_ID(card));
6955                 QETH_DBF_TEXT(setup, 2, " notsupp");
6956                 return 0;
6957         }
6958         rc = qeth_query_setadapterparms(card);
6959         if (rc) {
6960                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6961                            "x%x\n", CARD_BUS_ID(card), rc);
6962                 return rc;
6963         }
6964         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6965                 rc = qeth_setadpparms_change_macaddr(card);
6966                 if (rc)
6967                         PRINT_WARN("couldn't get MAC address on "
6968                                    "device %s: x%x\n",
6969                                    CARD_BUS_ID(card), rc);
6970         }
6971
6972         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6973             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6974                 rc = qeth_setadapter_hstr(card);
6975
6976         return rc;
6977 }
6978
6979 static int
6980 qeth_layer2_initialize(struct qeth_card *card)
6981 {
6982         int rc = 0;
6983
6984
6985         QETH_DBF_TEXT(setup, 2, "doL2init");
6986         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6987
6988         rc = qeth_query_setadapterparms(card);
6989         if (rc) {
6990                 PRINT_WARN("could not query adapter parameters on device %s: "
6991                            "x%x\n", CARD_BUS_ID(card), rc);
6992         }
6993
6994         rc = qeth_setadpparms_change_macaddr(card);
6995         if (rc) {
6996                 PRINT_WARN("couldn't get MAC address on "
6997                            "device %s: x%x\n",
6998                            CARD_BUS_ID(card), rc);
6999                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
7000                 return rc;
7001         }
7002         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
7003
7004         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
7005         if (rc)
7006                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
7007         return 0;
7008 }
7009
7010
7011 static int
7012 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
7013                        enum qeth_prot_versions prot)
7014 {
7015         int rc;
7016         struct qeth_cmd_buffer *iob;
7017
7018         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
7019         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7020
7021         return rc;
7022 }
7023
7024 static int
7025 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
7026 {
7027         int rc;
7028
7029         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
7030
7031         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
7032         return rc;
7033 }
7034
7035 static int
7036 qeth_send_stoplan(struct qeth_card *card)
7037 {
7038         int rc = 0;
7039
7040         /*
7041          * TODO: according to the IPA format document page 14,
7042          * TCP/IP (we!) never issue a STOPLAN
7043          * is this right ?!?
7044          */
7045         QETH_DBF_TEXT(trace, 2, "stoplan");
7046
7047         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
7048         return rc;
7049 }
7050
7051 static int
7052 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
7053                         unsigned long data)
7054 {
7055         struct qeth_ipa_cmd *cmd;
7056
7057         QETH_DBF_TEXT(setup, 2, "qipasscb");
7058
7059         cmd = (struct qeth_ipa_cmd *) data;
7060         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
7061                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
7062                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
7063                 /* Disable IPV6 support hard coded for Hipersockets */
7064                 if(card->info.type == QETH_CARD_TYPE_IQD)
7065                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
7066         } else {
7067 #ifdef CONFIG_QETH_IPV6
7068                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
7069                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
7070 #endif
7071         }
7072         QETH_DBF_TEXT(setup, 2, "suppenbl");
7073         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
7074         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
7075         return 0;
7076 }
7077
7078 static int
7079 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
7080 {
7081         int rc;
7082         struct qeth_cmd_buffer *iob;
7083
7084         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
7085         if (card->options.layer2) {
7086                 QETH_DBF_TEXT(setup, 2, "noprmly2");
7087                 return -EPERM;
7088         }
7089
7090         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
7091         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
7092         return rc;
7093 }
7094
7095 static struct qeth_cmd_buffer *
7096 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
7097                          __u16 cmd_code, __u16 len,
7098                          enum qeth_prot_versions prot)
7099 {
7100         struct qeth_cmd_buffer *iob;
7101         struct qeth_ipa_cmd *cmd;
7102
7103         QETH_DBF_TEXT(trace,4,"getasscm");
7104         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
7105
7106         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7107         cmd->data.setassparms.hdr.assist_no = ipa_func;
7108         cmd->data.setassparms.hdr.length = 8 + len;
7109         cmd->data.setassparms.hdr.command_code = cmd_code;
7110         cmd->data.setassparms.hdr.return_code = 0;
7111         cmd->data.setassparms.hdr.seq_no = 0;
7112
7113         return iob;
7114 }
7115
7116 static int
7117 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
7118                       __u16 len, long data,
7119                       int (*reply_cb)
7120                       (struct qeth_card *,struct qeth_reply *,unsigned long),
7121                       void *reply_param)
7122 {
7123         int rc;
7124         struct qeth_ipa_cmd *cmd;
7125
7126         QETH_DBF_TEXT(trace,4,"sendassp");
7127
7128         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7129         if (len <= sizeof(__u32))
7130                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
7131         else   /* (len > sizeof(__u32)) */
7132                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
7133
7134         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
7135         return rc;
7136 }
7137
7138 #ifdef CONFIG_QETH_IPV6
7139 static int
7140 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
7141                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
7142
7143 {
7144         int rc;
7145         struct qeth_cmd_buffer *iob;
7146
7147         QETH_DBF_TEXT(trace,4,"simassp6");
7148         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7149                                        0, QETH_PROT_IPV6);
7150         rc = qeth_send_setassparms(card, iob, 0, 0,
7151                                    qeth_default_setassparms_cb, NULL);
7152         return rc;
7153 }
7154 #endif
7155
7156 static int
7157 qeth_send_simple_setassparms(struct qeth_card *card,
7158                              enum qeth_ipa_funcs ipa_func,
7159                              __u16 cmd_code, long data)
7160 {
7161         int rc;
7162         int length = 0;
7163         struct qeth_cmd_buffer *iob;
7164
7165         QETH_DBF_TEXT(trace,4,"simassp4");
7166         if (data)
7167                 length = sizeof(__u32);
7168         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7169                                        length, QETH_PROT_IPV4);
7170         rc = qeth_send_setassparms(card, iob, length, data,
7171                                    qeth_default_setassparms_cb, NULL);
7172         return rc;
7173 }
7174
7175 static int
7176 qeth_start_ipa_arp_processing(struct qeth_card *card)
7177 {
7178         int rc;
7179
7180         QETH_DBF_TEXT(trace,3,"ipaarp");
7181
7182         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
7183                 PRINT_WARN("ARP processing not supported "
7184                            "on %s!\n", QETH_CARD_IFNAME(card));
7185                 return 0;
7186         }
7187         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
7188                                           IPA_CMD_ASS_START, 0);
7189         if (rc) {
7190                 PRINT_WARN("Could not start ARP processing "
7191                            "assist on %s: 0x%x\n",
7192                            QETH_CARD_IFNAME(card), rc);
7193         }
7194         return rc;
7195 }
7196
7197 static int
7198 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
7199 {
7200         int rc;
7201
7202         QETH_DBF_TEXT(trace,3,"ipaipfrg");
7203
7204         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
7205                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
7206                            QETH_CARD_IFNAME(card));
7207                 return  -EOPNOTSUPP;
7208         }
7209
7210         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
7211                                           IPA_CMD_ASS_START, 0);
7212         if (rc) {
7213                 PRINT_WARN("Could not start Hardware IP fragmentation "
7214                            "assist on %s: 0x%x\n",
7215                            QETH_CARD_IFNAME(card), rc);
7216         } else
7217                 PRINT_INFO("Hardware IP fragmentation enabled \n");
7218         return rc;
7219 }
7220
7221 static int
7222 qeth_start_ipa_source_mac(struct qeth_card *card)
7223 {
7224         int rc;
7225
7226         QETH_DBF_TEXT(trace,3,"stsrcmac");
7227
7228         if (!card->options.fake_ll)
7229                 return -EOPNOTSUPP;
7230
7231         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7232                 PRINT_INFO("Inbound source address not "
7233                            "supported on %s\n", QETH_CARD_IFNAME(card));
7234                 return -EOPNOTSUPP;
7235         }
7236
7237         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7238                                           IPA_CMD_ASS_START, 0);
7239         if (rc)
7240                 PRINT_WARN("Could not start inbound source "
7241                            "assist on %s: 0x%x\n",
7242                            QETH_CARD_IFNAME(card), rc);
7243         return rc;
7244 }
7245
7246 static int
7247 qeth_start_ipa_vlan(struct qeth_card *card)
7248 {
7249         int rc = 0;
7250
7251         QETH_DBF_TEXT(trace,3,"strtvlan");
7252
7253 #ifdef CONFIG_QETH_VLAN
7254         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7255                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7256                 return -EOPNOTSUPP;
7257         }
7258
7259         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7260                                           IPA_CMD_ASS_START,0);
7261         if (rc) {
7262                 PRINT_WARN("Could not start vlan "
7263                            "assist on %s: 0x%x\n",
7264                            QETH_CARD_IFNAME(card), rc);
7265         } else {
7266                 PRINT_INFO("VLAN enabled \n");
7267                 card->dev->features |=
7268                         NETIF_F_HW_VLAN_FILTER |
7269                         NETIF_F_HW_VLAN_TX |
7270                         NETIF_F_HW_VLAN_RX;
7271         }
7272 #endif /* QETH_VLAN */
7273         return rc;
7274 }
7275
7276 static int
7277 qeth_start_ipa_multicast(struct qeth_card *card)
7278 {
7279         int rc;
7280
7281         QETH_DBF_TEXT(trace,3,"stmcast");
7282
7283         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7284                 PRINT_WARN("Multicast not supported on %s\n",
7285                            QETH_CARD_IFNAME(card));
7286                 return -EOPNOTSUPP;
7287         }
7288
7289         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7290                                           IPA_CMD_ASS_START,0);
7291         if (rc) {
7292                 PRINT_WARN("Could not start multicast "
7293                            "assist on %s: rc=%i\n",
7294                            QETH_CARD_IFNAME(card), rc);
7295         } else {
7296                 PRINT_INFO("Multicast enabled\n");
7297                 card->dev->flags |= IFF_MULTICAST;
7298         }
7299         return rc;
7300 }
7301
7302 #ifdef CONFIG_QETH_IPV6
7303 static int
7304 qeth_softsetup_ipv6(struct qeth_card *card)
7305 {
7306         int rc;
7307
7308         QETH_DBF_TEXT(trace,3,"softipv6");
7309
7310         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7311         if (rc) {
7312                 PRINT_ERR("IPv6 startlan failed on %s\n",
7313                           QETH_CARD_IFNAME(card));
7314                 return rc;
7315         }
7316         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7317         if (rc) {
7318                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7319                           QETH_CARD_IFNAME(card));
7320                 return rc;
7321         }
7322         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7323                                           IPA_CMD_ASS_START, 3);
7324         if (rc) {
7325                 PRINT_WARN("IPv6 start assist (version 4) failed "
7326                            "on %s: 0x%x\n",
7327                            QETH_CARD_IFNAME(card), rc);
7328                 return rc;
7329         }
7330         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7331                                                IPA_CMD_ASS_START);
7332         if (rc) {
7333                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7334                            "on %s: 0x%x\n",
7335                            QETH_CARD_IFNAME(card), rc);
7336                 return rc;
7337         }
7338         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7339                                                IPA_CMD_ASS_START);
7340         if (rc) {
7341                 PRINT_WARN("Could not enable passthrough "
7342                            "on %s: 0x%x\n",
7343                            QETH_CARD_IFNAME(card), rc);
7344                 return rc;
7345         }
7346         PRINT_INFO("IPV6 enabled \n");
7347         return 0;
7348 }
7349
7350 #endif
7351
7352 static int
7353 qeth_start_ipa_ipv6(struct qeth_card *card)
7354 {
7355         int rc = 0;
7356 #ifdef CONFIG_QETH_IPV6
7357         QETH_DBF_TEXT(trace,3,"strtipv6");
7358
7359         if (!qeth_is_supported(card, IPA_IPV6)) {
7360                 PRINT_WARN("IPv6 not supported on %s\n",
7361                            QETH_CARD_IFNAME(card));
7362                 return 0;
7363         }
7364         rc = qeth_softsetup_ipv6(card);
7365 #endif
7366         return rc ;
7367 }
7368
7369 static int
7370 qeth_start_ipa_broadcast(struct qeth_card *card)
7371 {
7372         int rc;
7373
7374         QETH_DBF_TEXT(trace,3,"stbrdcst");
7375         card->info.broadcast_capable = 0;
7376         if (!qeth_is_supported(card, IPA_FILTERING)) {
7377                 PRINT_WARN("Broadcast not supported on %s\n",
7378                            QETH_CARD_IFNAME(card));
7379                 rc = -EOPNOTSUPP;
7380                 goto out;
7381         }
7382         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7383                                           IPA_CMD_ASS_START, 0);
7384         if (rc) {
7385                 PRINT_WARN("Could not enable broadcasting filtering "
7386                            "on %s: 0x%x\n",
7387                            QETH_CARD_IFNAME(card), rc);
7388                 goto out;
7389         }
7390
7391         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7392                                           IPA_CMD_ASS_CONFIGURE, 1);
7393         if (rc) {
7394                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7395                            QETH_CARD_IFNAME(card), rc);
7396                 goto out;
7397         }
7398         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7399         PRINT_INFO("Broadcast enabled \n");
7400         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7401                                           IPA_CMD_ASS_ENABLE, 1);
7402         if (rc) {
7403                 PRINT_WARN("Could not set up broadcast echo filtering on "
7404                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7405                 goto out;
7406         }
7407         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7408 out:
7409         if (card->info.broadcast_capable)
7410                 card->dev->flags |= IFF_BROADCAST;
7411         else
7412                 card->dev->flags &= ~IFF_BROADCAST;
7413         return rc;
7414 }
7415
7416 static int
7417 qeth_send_checksum_command(struct qeth_card *card)
7418 {
7419         int rc;
7420
7421         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7422                                           IPA_CMD_ASS_START, 0);
7423         if (rc) {
7424                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7425                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7426                            QETH_CARD_IFNAME(card), rc);
7427                 return rc;
7428         }
7429         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7430                                           IPA_CMD_ASS_ENABLE,
7431                                           card->info.csum_mask);
7432         if (rc) {
7433                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7434                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7435                            QETH_CARD_IFNAME(card), rc);
7436                 return rc;
7437         }
7438         return 0;
7439 }
7440
7441 static int
7442 qeth_start_ipa_checksum(struct qeth_card *card)
7443 {
7444         int rc = 0;
7445
7446         QETH_DBF_TEXT(trace,3,"strtcsum");
7447
7448         if (card->options.checksum_type == NO_CHECKSUMMING) {
7449                 PRINT_WARN("Using no checksumming on %s.\n",
7450                            QETH_CARD_IFNAME(card));
7451                 return 0;
7452         }
7453         if (card->options.checksum_type == SW_CHECKSUMMING) {
7454                 PRINT_WARN("Using SW checksumming on %s.\n",
7455                            QETH_CARD_IFNAME(card));
7456                 return 0;
7457         }
7458         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7459                 PRINT_WARN("Inbound HW Checksumming not "
7460                            "supported on %s,\ncontinuing "
7461                            "using Inbound SW Checksumming\n",
7462                            QETH_CARD_IFNAME(card));
7463                 card->options.checksum_type = SW_CHECKSUMMING;
7464                 return 0;
7465         }
7466         rc = qeth_send_checksum_command(card);
7467         if (!rc) {
7468                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7469         }
7470         return rc;
7471 }
7472
7473 static int
7474 qeth_start_ipa_tso(struct qeth_card *card)
7475 {
7476         int rc;
7477
7478         QETH_DBF_TEXT(trace,3,"sttso");
7479
7480         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7481                 PRINT_WARN("Outbound TSO not supported on %s\n",
7482                            QETH_CARD_IFNAME(card));
7483                 rc = -EOPNOTSUPP;
7484         } else {
7485                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7486                                                   IPA_CMD_ASS_START,0);
7487                 if (rc)
7488                         PRINT_WARN("Could not start outbound TSO "
7489                                    "assist on %s: rc=%i\n",
7490                                    QETH_CARD_IFNAME(card), rc);
7491                 else
7492                         PRINT_INFO("Outbound TSO enabled\n");
7493         }
7494         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7495                 card->options.large_send = QETH_LARGE_SEND_NO;
7496                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7497                                                 NETIF_F_HW_CSUM);
7498         }
7499         return rc;
7500 }
7501
7502 static int
7503 qeth_start_ipassists(struct qeth_card *card)
7504 {
7505         QETH_DBF_TEXT(trace,3,"strtipas");
7506         qeth_start_ipa_arp_processing(card);    /* go on*/
7507         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7508         qeth_start_ipa_source_mac(card);        /* go on*/
7509         qeth_start_ipa_vlan(card);              /* go on*/
7510         qeth_start_ipa_multicast(card);         /* go on*/
7511         qeth_start_ipa_ipv6(card);              /* go on*/
7512         qeth_start_ipa_broadcast(card);         /* go on*/
7513         qeth_start_ipa_checksum(card);          /* go on*/
7514         qeth_start_ipa_tso(card);               /* go on*/
7515         return 0;
7516 }
7517
7518 static int
7519 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7520                      enum qeth_prot_versions prot)
7521 {
7522         int rc;
7523         struct qeth_ipa_cmd *cmd;
7524         struct qeth_cmd_buffer *iob;
7525
7526         QETH_DBF_TEXT(trace,4,"setroutg");
7527         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7528         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7529         cmd->data.setrtg.type = (type);
7530         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7531
7532         return rc;
7533
7534 }
7535
7536 static void
7537 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7538                         enum qeth_prot_versions prot)
7539 {
7540         if (card->info.type == QETH_CARD_TYPE_IQD) {
7541                 switch (*type) {
7542                 case NO_ROUTER:
7543                 case PRIMARY_CONNECTOR:
7544                 case SECONDARY_CONNECTOR:
7545                 case MULTICAST_ROUTER:
7546                         return;
7547                 default:
7548                         goto out_inval;
7549                 }
7550         } else {
7551                 switch (*type) {
7552                 case NO_ROUTER:
7553                 case PRIMARY_ROUTER:
7554                 case SECONDARY_ROUTER:
7555                         return;
7556                 case MULTICAST_ROUTER:
7557                         if (qeth_is_ipafunc_supported(card, prot,
7558                                                       IPA_OSA_MC_ROUTER))
7559                                 return;
7560                 default:
7561                         goto out_inval;
7562                 }
7563         }
7564 out_inval:
7565         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7566                    "Router status set to 'no router'.\n",
7567                    ((*type == PRIMARY_ROUTER)? "primary router" :
7568                     (*type == SECONDARY_ROUTER)? "secondary router" :
7569                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7570                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7571                     (*type == MULTICAST_ROUTER)? "multicast router" :
7572                     "unknown"),
7573                    card->dev->name);
7574         *type = NO_ROUTER;
7575 }
7576
7577 int
7578 qeth_setrouting_v4(struct qeth_card *card)
7579 {
7580         int rc;
7581
7582         QETH_DBF_TEXT(trace,3,"setrtg4");
7583
7584         qeth_correct_routing_type(card, &card->options.route4.type,
7585                                   QETH_PROT_IPV4);
7586
7587         rc = qeth_send_setrouting(card, card->options.route4.type,
7588                                   QETH_PROT_IPV4);
7589         if (rc) {
7590                 card->options.route4.type = NO_ROUTER;
7591                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7592                            "Type set to 'no router'.\n",
7593                            rc, QETH_CARD_IFNAME(card));
7594         }
7595         return rc;
7596 }
7597
7598 int
7599 qeth_setrouting_v6(struct qeth_card *card)
7600 {
7601         int rc = 0;
7602
7603         QETH_DBF_TEXT(trace,3,"setrtg6");
7604 #ifdef CONFIG_QETH_IPV6
7605
7606         if (!qeth_is_supported(card, IPA_IPV6))
7607                 return 0;
7608         qeth_correct_routing_type(card, &card->options.route6.type,
7609                                   QETH_PROT_IPV6);
7610
7611         rc = qeth_send_setrouting(card, card->options.route6.type,
7612                                   QETH_PROT_IPV6);
7613         if (rc) {
7614                 card->options.route6.type = NO_ROUTER;
7615                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7616                            "Type set to 'no router'.\n",
7617                            rc, QETH_CARD_IFNAME(card));
7618         }
7619 #endif
7620         return rc;
7621 }
7622
7623 int
7624 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7625 {
7626         int rc = 0;
7627
7628         if (card->dev == NULL) {
7629                 card->options.large_send = type;
7630                 return 0;
7631         }
7632         if (card->state == CARD_STATE_UP)
7633                 netif_tx_disable(card->dev);
7634         card->options.large_send = type;
7635         switch (card->options.large_send) {
7636         case QETH_LARGE_SEND_EDDP:
7637                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
7638                                         NETIF_F_HW_CSUM;
7639                 break;
7640         case QETH_LARGE_SEND_TSO:
7641                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7642                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
7643                                                 NETIF_F_HW_CSUM;
7644                 } else {
7645                         PRINT_WARN("TSO not supported on %s. "
7646                                    "large_send set to 'no'.\n",
7647                                    card->dev->name);
7648                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7649                                                 NETIF_F_HW_CSUM);
7650                         card->options.large_send = QETH_LARGE_SEND_NO;
7651                         rc = -EOPNOTSUPP;
7652                 }
7653                 break;
7654         default: /* includes QETH_LARGE_SEND_NO */
7655                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7656                                         NETIF_F_HW_CSUM);
7657                 break;
7658         }
7659         if (card->state == CARD_STATE_UP)
7660                 netif_wake_queue(card->dev);
7661         return rc;
7662 }
7663
7664 /*
7665  * softsetup card: init IPA stuff
7666  */
7667 static int
7668 qeth_softsetup_card(struct qeth_card *card)
7669 {
7670         int rc;
7671
7672         QETH_DBF_TEXT(setup, 2, "softsetp");
7673
7674         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7675                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7676                 if (rc == 0xe080){
7677                         PRINT_WARN("LAN on card %s if offline! "
7678                                    "Waiting for STARTLAN from card.\n",
7679                                    CARD_BUS_ID(card));
7680                         card->lan_online = 0;
7681                 }
7682                 return rc;
7683         } else
7684                 card->lan_online = 1;
7685         if (card->info.type==QETH_CARD_TYPE_OSN)
7686                 goto out;
7687         qeth_set_large_send(card, card->options.large_send);
7688         if (card->options.layer2) {
7689                 card->dev->features |=
7690                         NETIF_F_HW_VLAN_FILTER |
7691                         NETIF_F_HW_VLAN_TX |
7692                         NETIF_F_HW_VLAN_RX;
7693                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7694                 card->info.broadcast_capable=1;
7695                 if ((rc = qeth_layer2_initialize(card))) {
7696                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7697                         return rc;
7698                 }
7699 #ifdef CONFIG_QETH_VLAN
7700                 qeth_layer2_process_vlans(card, 0);
7701 #endif
7702                 goto out;
7703         }
7704         if ((rc = qeth_setadapter_parms(card)))
7705                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7706         if ((rc = qeth_start_ipassists(card)))
7707                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7708         if ((rc = qeth_setrouting_v4(card)))
7709                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7710         if ((rc = qeth_setrouting_v6(card)))
7711                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7712 out:
7713         netif_tx_disable(card->dev);
7714         return 0;
7715 }
7716
7717 #ifdef CONFIG_QETH_IPV6
7718 static int
7719 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7720                       unsigned long data)
7721 {
7722         struct qeth_ipa_cmd *cmd;
7723
7724         cmd = (struct qeth_ipa_cmd *) data;
7725         if (cmd->hdr.return_code == 0)
7726                 card->info.unique_id = *((__u16 *)
7727                                 &cmd->data.create_destroy_addr.unique_id[6]);
7728         else {
7729                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7730                                         UNIQUE_ID_NOT_BY_CARD;
7731                 PRINT_WARN("couldn't get a unique id from the card on device "
7732                            "%s (result=x%x), using default id. ipv6 "
7733                            "autoconfig on other lpars may lead to duplicate "
7734                            "ip addresses. please use manually "
7735                            "configured ones.\n",
7736                            CARD_BUS_ID(card), cmd->hdr.return_code);
7737         }
7738         return 0;
7739 }
7740 #endif
7741
7742 static int
7743 qeth_put_unique_id(struct qeth_card *card)
7744 {
7745
7746         int rc = 0;
7747 #ifdef CONFIG_QETH_IPV6
7748         struct qeth_cmd_buffer *iob;
7749         struct qeth_ipa_cmd *cmd;
7750
7751         QETH_DBF_TEXT(trace,2,"puniqeid");
7752
7753         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7754                 UNIQUE_ID_NOT_BY_CARD)
7755                 return -1;
7756         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7757                                      QETH_PROT_IPV6);
7758         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7759         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7760                             card->info.unique_id;
7761         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7762                card->dev->dev_addr, OSA_ADDR_LEN);
7763         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7764 #else
7765         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7766                                 UNIQUE_ID_NOT_BY_CARD;
7767 #endif
7768         return rc;
7769 }
7770
7771 /**
7772  * Clear IP List
7773  */
7774 static void
7775 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7776 {
7777         struct qeth_ipaddr *addr, *tmp;
7778         unsigned long flags;
7779
7780         QETH_DBF_TEXT(trace,4,"clearip");
7781         spin_lock_irqsave(&card->ip_lock, flags);
7782         /* clear todo list */
7783         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7784                 list_del(&addr->entry);
7785                 kfree(addr);
7786         }
7787
7788         while (!list_empty(&card->ip_list)) {
7789                 addr = list_entry(card->ip_list.next,
7790                                   struct qeth_ipaddr, entry);
7791                 list_del_init(&addr->entry);
7792                 if (clean) {
7793                         spin_unlock_irqrestore(&card->ip_lock, flags);
7794                         qeth_deregister_addr_entry(card, addr);
7795                         spin_lock_irqsave(&card->ip_lock, flags);
7796                 }
7797                 if (!recover || addr->is_multicast) {
7798                         kfree(addr);
7799                         continue;
7800                 }
7801                 list_add_tail(&addr->entry, card->ip_tbd_list);
7802         }
7803         spin_unlock_irqrestore(&card->ip_lock, flags);
7804 }
7805
7806 static void
7807 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7808                          int clear_start_mask)
7809 {
7810         unsigned long flags;
7811
7812         spin_lock_irqsave(&card->thread_mask_lock, flags);
7813         card->thread_allowed_mask = threads;
7814         if (clear_start_mask)
7815                 card->thread_start_mask &= threads;
7816         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7817         wake_up(&card->wait_q);
7818 }
7819
7820 static int
7821 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7822 {
7823         unsigned long flags;
7824         int rc = 0;
7825
7826         spin_lock_irqsave(&card->thread_mask_lock, flags);
7827         rc = (card->thread_running_mask & threads);
7828         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7829         return rc;
7830 }
7831
7832 static int
7833 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7834 {
7835         return wait_event_interruptible(card->wait_q,
7836                         qeth_threads_running(card, threads) == 0);
7837 }
7838
7839 static int
7840 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7841 {
7842         int rc = 0;
7843
7844         QETH_DBF_TEXT(setup ,2,"stopcard");
7845         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7846
7847         qeth_set_allowed_threads(card, 0, 1);
7848         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7849                 return -ERESTARTSYS;
7850         if (card->read.state == CH_STATE_UP &&
7851             card->write.state == CH_STATE_UP &&
7852             (card->state == CARD_STATE_UP)) {
7853                 if (recovery_mode &&
7854                     card->info.type != QETH_CARD_TYPE_OSN) {
7855                         qeth_stop(card->dev);
7856                 } else {
7857                         rtnl_lock();
7858                         dev_close(card->dev);
7859                         rtnl_unlock();
7860                 }
7861                 if (!card->use_hard_stop) {
7862                         __u8 *mac = &card->dev->dev_addr[0];
7863                         rc = qeth_layer2_send_delmac(card, mac);
7864                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7865                         if ((rc = qeth_send_stoplan(card)))
7866                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7867                 }
7868                 card->state = CARD_STATE_SOFTSETUP;
7869         }
7870         if (card->state == CARD_STATE_SOFTSETUP) {
7871 #ifdef CONFIG_QETH_VLAN
7872                 if (card->options.layer2)
7873                         qeth_layer2_process_vlans(card, 1);
7874 #endif
7875                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7876                 qeth_clear_ipacmd_list(card);
7877                 card->state = CARD_STATE_HARDSETUP;
7878         }
7879         if (card->state == CARD_STATE_HARDSETUP) {
7880                 if ((!card->use_hard_stop) &&
7881                     (!card->options.layer2))
7882                         if ((rc = qeth_put_unique_id(card)))
7883                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7884                 qeth_qdio_clear_card(card, 0);
7885                 qeth_clear_qdio_buffers(card);
7886                 qeth_clear_working_pool_list(card);
7887                 card->state = CARD_STATE_DOWN;
7888         }
7889         if (card->state == CARD_STATE_DOWN) {
7890                 qeth_clear_cmd_buffers(&card->read);
7891                 qeth_clear_cmd_buffers(&card->write);
7892         }
7893         card->use_hard_stop = 0;
7894         return rc;
7895 }
7896
7897
7898 static int
7899 qeth_get_unique_id(struct qeth_card *card)
7900 {
7901         int rc = 0;
7902 #ifdef CONFIG_QETH_IPV6
7903         struct qeth_cmd_buffer *iob;
7904         struct qeth_ipa_cmd *cmd;
7905
7906         QETH_DBF_TEXT(setup, 2, "guniqeid");
7907
7908         if (!qeth_is_supported(card,IPA_IPV6)) {
7909                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7910                                         UNIQUE_ID_NOT_BY_CARD;
7911                 return 0;
7912         }
7913
7914         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7915                                      QETH_PROT_IPV6);
7916         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7917         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7918                             card->info.unique_id;
7919
7920         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7921 #else
7922         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7923                                 UNIQUE_ID_NOT_BY_CARD;
7924 #endif
7925         return rc;
7926 }
7927 static void
7928 qeth_print_status_with_portname(struct qeth_card *card)
7929 {
7930         char dbf_text[15];
7931         int i;
7932
7933         sprintf(dbf_text, "%s", card->info.portname + 1);
7934         for (i = 0; i < 8; i++)
7935                 dbf_text[i] =
7936                         (char) _ebcasc[(__u8) dbf_text[i]];
7937         dbf_text[8] = 0;
7938         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7939                "with link type %s (portname: %s)\n",
7940                CARD_RDEV_ID(card),
7941                CARD_WDEV_ID(card),
7942                CARD_DDEV_ID(card),
7943                qeth_get_cardname(card),
7944                (card->info.mcl_level[0]) ? " (level: " : "",
7945                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7946                (card->info.mcl_level[0]) ? ")" : "",
7947                qeth_get_cardname_short(card),
7948                dbf_text);
7949
7950 }
7951
7952 static void
7953 qeth_print_status_no_portname(struct qeth_card *card)
7954 {
7955         if (card->info.portname[0])
7956                 printk("qeth: Device %s/%s/%s is a%s "
7957                        "card%s%s%s\nwith link type %s "
7958                        "(no portname needed by interface).\n",
7959                        CARD_RDEV_ID(card),
7960                        CARD_WDEV_ID(card),
7961                        CARD_DDEV_ID(card),
7962                        qeth_get_cardname(card),
7963                        (card->info.mcl_level[0]) ? " (level: " : "",
7964                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7965                        (card->info.mcl_level[0]) ? ")" : "",
7966                        qeth_get_cardname_short(card));
7967         else
7968                 printk("qeth: Device %s/%s/%s is a%s "
7969                        "card%s%s%s\nwith link type %s.\n",
7970                        CARD_RDEV_ID(card),
7971                        CARD_WDEV_ID(card),
7972                        CARD_DDEV_ID(card),
7973                        qeth_get_cardname(card),
7974                        (card->info.mcl_level[0]) ? " (level: " : "",
7975                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7976                        (card->info.mcl_level[0]) ? ")" : "",
7977                        qeth_get_cardname_short(card));
7978 }
7979
7980 static void
7981 qeth_print_status_message(struct qeth_card *card)
7982 {
7983         switch (card->info.type) {
7984         case QETH_CARD_TYPE_OSAE:
7985                 /* VM will use a non-zero first character
7986                  * to indicate a HiperSockets like reporting
7987                  * of the level OSA sets the first character to zero
7988                  * */
7989                 if (!card->info.mcl_level[0]) {
7990                         sprintf(card->info.mcl_level,"%02x%02x",
7991                                 card->info.mcl_level[2],
7992                                 card->info.mcl_level[3]);
7993
7994                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7995                         break;
7996                 }
7997                 /* fallthrough */
7998         case QETH_CARD_TYPE_IQD:
7999                 if (card->info.guestlan) {
8000                         card->info.mcl_level[0] = (char) _ebcasc[(__u8)
8001                                 card->info.mcl_level[0]];
8002                         card->info.mcl_level[1] = (char) _ebcasc[(__u8)
8003                                 card->info.mcl_level[1]];
8004                         card->info.mcl_level[2] = (char) _ebcasc[(__u8)
8005                                 card->info.mcl_level[2]];
8006                         card->info.mcl_level[3] = (char) _ebcasc[(__u8)
8007                                 card->info.mcl_level[3]];
8008                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
8009                 }
8010                 break;
8011         default:
8012                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
8013         }
8014         if (card->info.portname_required)
8015                 qeth_print_status_with_portname(card);
8016         else
8017                 qeth_print_status_no_portname(card);
8018 }
8019
8020 static int
8021 qeth_register_netdev(struct qeth_card *card)
8022 {
8023         QETH_DBF_TEXT(setup, 3, "regnetd");
8024         if (card->dev->reg_state != NETREG_UNINITIALIZED)
8025                 return 0;
8026         /* sysfs magic */
8027         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
8028         return register_netdev(card->dev);
8029 }
8030
8031 static void
8032 qeth_start_again(struct qeth_card *card, int recovery_mode)
8033 {
8034         QETH_DBF_TEXT(setup ,2, "startag");
8035
8036         if (recovery_mode &&
8037             card->info.type != QETH_CARD_TYPE_OSN) {
8038                 qeth_open(card->dev);
8039         } else {
8040                 rtnl_lock();
8041                 dev_open(card->dev);
8042                 rtnl_unlock();
8043         }
8044         /* this also sets saved unicast addresses */
8045         qeth_set_multicast_list(card->dev);
8046 }
8047
8048
8049 /* Layer 2 specific stuff */
8050 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
8051         if (card->options.option == value) { \
8052                 PRINT_ERR("%s not supported with layer 2 " \
8053                           "functionality, ignoring option on read" \
8054                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
8055                 card->options.option = reset_value; \
8056         }
8057 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
8058         if (card->options.option != value) { \
8059                 PRINT_ERR("%s not supported with layer 2 " \
8060                           "functionality, ignoring option on read" \
8061                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
8062                 card->options.option = reset_value; \
8063         }
8064
8065
8066 static void qeth_make_parameters_consistent(struct qeth_card *card)
8067 {
8068
8069         if (card->options.layer2 == 0)
8070                 return;
8071         if (card->info.type == QETH_CARD_TYPE_OSN)
8072                 return;
8073         if (card->info.type == QETH_CARD_TYPE_IQD) {
8074                 PRINT_ERR("Device %s does not support layer 2 functionality." \
8075                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
8076                 card->options.layer2 = 0;
8077                 return;
8078         }
8079         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
8080                          "Routing options are");
8081 #ifdef CONFIG_QETH_IPV6
8082         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
8083                          "Routing options are");
8084 #endif
8085         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
8086                         QETH_CHECKSUM_DEFAULT,
8087                         "Checksumming options are");
8088         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
8089                          QETH_TR_BROADCAST_ALLRINGS,
8090                          "Broadcast mode options are");
8091         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
8092                          QETH_TR_MACADDR_NONCANONICAL,
8093                          "Canonical MAC addr options are");
8094         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
8095                          "Broadcast faking options are");
8096         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
8097                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
8098         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
8099 }
8100
8101
8102 static int
8103 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
8104 {
8105         struct qeth_card *card = gdev->dev.driver_data;
8106         int rc = 0;
8107         enum qeth_card_states recover_flag;
8108
8109         BUG_ON(!card);
8110         QETH_DBF_TEXT(setup ,2, "setonlin");
8111         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
8112
8113         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
8114         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
8115                 PRINT_WARN("set_online of card %s interrupted by user!\n",
8116                            CARD_BUS_ID(card));
8117                 return -ERESTARTSYS;
8118         }
8119
8120         recover_flag = card->state;
8121         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
8122             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
8123             (rc = ccw_device_set_online(CARD_DDEV(card)))){
8124                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
8125                 return -EIO;
8126         }
8127
8128         qeth_make_parameters_consistent(card);
8129
8130         if ((rc = qeth_hardsetup_card(card))){
8131                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
8132                 goto out_remove;
8133         }
8134         card->state = CARD_STATE_HARDSETUP;
8135
8136         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
8137                 rc = qeth_get_unique_id(card);
8138
8139         if (rc && card->options.layer2 == 0) {
8140                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
8141                 goto out_remove;
8142         }
8143         qeth_print_status_message(card);
8144         if ((rc = qeth_register_netdev(card))){
8145                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
8146                 goto out_remove;
8147         }
8148         if ((rc = qeth_softsetup_card(card))){
8149                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
8150                 goto out_remove;
8151         }
8152
8153         if ((rc = qeth_init_qdio_queues(card))){
8154                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
8155                 goto out_remove;
8156         }
8157         card->state = CARD_STATE_SOFTSETUP;
8158         netif_carrier_on(card->dev);
8159
8160         qeth_set_allowed_threads(card, 0xffffffff, 0);
8161         if (recover_flag == CARD_STATE_RECOVER)
8162                 qeth_start_again(card, recovery_mode);
8163         qeth_notify_processes();
8164         return 0;
8165 out_remove:
8166         card->use_hard_stop = 1;
8167         qeth_stop_card(card, 0);
8168         ccw_device_set_offline(CARD_DDEV(card));
8169         ccw_device_set_offline(CARD_WDEV(card));
8170         ccw_device_set_offline(CARD_RDEV(card));
8171         if (recover_flag == CARD_STATE_RECOVER)
8172                 card->state = CARD_STATE_RECOVER;
8173         else
8174                 card->state = CARD_STATE_DOWN;
8175         return -ENODEV;
8176 }
8177
8178 static int
8179 qeth_set_online(struct ccwgroup_device *gdev)
8180 {
8181         return __qeth_set_online(gdev, 0);
8182 }
8183
8184 static struct ccw_device_id qeth_ids[] = {
8185         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
8186         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
8187         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
8188         {},
8189 };
8190 MODULE_DEVICE_TABLE(ccw, qeth_ids);
8191
8192 struct device *qeth_root_dev = NULL;
8193
8194 struct ccwgroup_driver qeth_ccwgroup_driver = {
8195         .owner = THIS_MODULE,
8196         .name = "qeth",
8197         .driver_id = 0xD8C5E3C8,
8198         .probe = qeth_probe_device,
8199         .remove = qeth_remove_device,
8200         .set_online = qeth_set_online,
8201         .set_offline = qeth_set_offline,
8202 };
8203
8204 struct ccw_driver qeth_ccw_driver = {
8205         .name = "qeth",
8206         .ids = qeth_ids,
8207         .probe = ccwgroup_probe_ccwdev,
8208         .remove = ccwgroup_remove_ccwdev,
8209 };
8210
8211
8212 static void
8213 qeth_unregister_dbf_views(void)
8214 {
8215         if (qeth_dbf_setup)
8216                 debug_unregister(qeth_dbf_setup);
8217         if (qeth_dbf_qerr)
8218                 debug_unregister(qeth_dbf_qerr);
8219         if (qeth_dbf_sense)
8220                 debug_unregister(qeth_dbf_sense);
8221         if (qeth_dbf_misc)
8222                 debug_unregister(qeth_dbf_misc);
8223         if (qeth_dbf_data)
8224                 debug_unregister(qeth_dbf_data);
8225         if (qeth_dbf_control)
8226                 debug_unregister(qeth_dbf_control);
8227         if (qeth_dbf_trace)
8228                 debug_unregister(qeth_dbf_trace);
8229 }
8230 static int
8231 qeth_register_dbf_views(void)
8232 {
8233         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8234                                         QETH_DBF_SETUP_PAGES,
8235                                         QETH_DBF_SETUP_NR_AREAS,
8236                                         QETH_DBF_SETUP_LEN);
8237         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8238                                        QETH_DBF_MISC_PAGES,
8239                                        QETH_DBF_MISC_NR_AREAS,
8240                                        QETH_DBF_MISC_LEN);
8241         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8242                                        QETH_DBF_DATA_PAGES,
8243                                        QETH_DBF_DATA_NR_AREAS,
8244                                        QETH_DBF_DATA_LEN);
8245         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8246                                           QETH_DBF_CONTROL_PAGES,
8247                                           QETH_DBF_CONTROL_NR_AREAS,
8248                                           QETH_DBF_CONTROL_LEN);
8249         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8250                                         QETH_DBF_SENSE_PAGES,
8251                                         QETH_DBF_SENSE_NR_AREAS,
8252                                         QETH_DBF_SENSE_LEN);
8253         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8254                                        QETH_DBF_QERR_PAGES,
8255                                        QETH_DBF_QERR_NR_AREAS,
8256                                        QETH_DBF_QERR_LEN);
8257         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8258                                         QETH_DBF_TRACE_PAGES,
8259                                         QETH_DBF_TRACE_NR_AREAS,
8260                                         QETH_DBF_TRACE_LEN);
8261
8262         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
8263             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
8264             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
8265             (qeth_dbf_trace == NULL)) {
8266                 qeth_unregister_dbf_views();
8267                 return -ENOMEM;
8268         }
8269         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8270         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8271
8272         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8273         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8274
8275         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8276         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8277
8278         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8279         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8280
8281         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8282         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8283
8284         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8285         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8286
8287         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8288         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8289
8290         return 0;
8291 }
8292
8293 #ifdef CONFIG_QETH_IPV6
8294 extern struct neigh_table arp_tbl;
8295 static struct neigh_ops *arp_direct_ops;
8296 static int (*qeth_old_arp_constructor) (struct neighbour *);
8297
8298 static struct neigh_ops arp_direct_ops_template = {
8299         .family = AF_INET,
8300         .solicit = NULL,
8301         .error_report = NULL,
8302         .output = dev_queue_xmit,
8303         .connected_output = dev_queue_xmit,
8304         .hh_output = dev_queue_xmit,
8305         .queue_xmit = dev_queue_xmit
8306 };
8307
8308 static int
8309 qeth_arp_constructor(struct neighbour *neigh)
8310 {
8311         struct net_device *dev = neigh->dev;
8312         struct in_device *in_dev;
8313         struct neigh_parms *parms;
8314         struct qeth_card *card;
8315
8316         card = qeth_get_card_from_dev(dev);
8317         if (card == NULL)
8318                 goto out;
8319         if((card->options.layer2) ||
8320            (card->dev->header_ops == &qeth_fake_ops))
8321                 goto out;
8322
8323         rcu_read_lock();
8324         in_dev = __in_dev_get_rcu(dev);
8325         if (in_dev == NULL) {
8326                 rcu_read_unlock();
8327                 return -EINVAL;
8328         }
8329
8330         parms = in_dev->arp_parms;
8331         __neigh_parms_put(neigh->parms);
8332         neigh->parms = neigh_parms_clone(parms);
8333         rcu_read_unlock();
8334
8335         neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8336         neigh->nud_state = NUD_NOARP;
8337         neigh->ops = arp_direct_ops;
8338         neigh->output = neigh->ops->queue_xmit;
8339         return 0;
8340 out:
8341         return qeth_old_arp_constructor(neigh);
8342 }
8343 #endif  /*CONFIG_QETH_IPV6*/
8344
8345 /*
8346  * IP address takeover related functions
8347  */
8348 static void
8349 qeth_clear_ipato_list(struct qeth_card *card)
8350 {
8351         struct qeth_ipato_entry *ipatoe, *tmp;
8352         unsigned long flags;
8353
8354         spin_lock_irqsave(&card->ip_lock, flags);
8355         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8356                 list_del(&ipatoe->entry);
8357                 kfree(ipatoe);
8358         }
8359         spin_unlock_irqrestore(&card->ip_lock, flags);
8360 }
8361
8362 int
8363 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8364 {
8365         struct qeth_ipato_entry *ipatoe;
8366         unsigned long flags;
8367         int rc = 0;
8368
8369         QETH_DBF_TEXT(trace, 2, "addipato");
8370         spin_lock_irqsave(&card->ip_lock, flags);
8371         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8372                 if (ipatoe->proto != new->proto)
8373                         continue;
8374                 if (!memcmp(ipatoe->addr, new->addr,
8375                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8376                     (ipatoe->mask_bits == new->mask_bits)){
8377                         PRINT_WARN("ipato entry already exists!\n");
8378                         rc = -EEXIST;
8379                         break;
8380                 }
8381         }
8382         if (!rc) {
8383                 list_add_tail(&new->entry, &card->ipato.entries);
8384         }
8385         spin_unlock_irqrestore(&card->ip_lock, flags);
8386         return rc;
8387 }
8388
8389 void
8390 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8391                      u8 *addr, int mask_bits)
8392 {
8393         struct qeth_ipato_entry *ipatoe, *tmp;
8394         unsigned long flags;
8395
8396         QETH_DBF_TEXT(trace, 2, "delipato");
8397         spin_lock_irqsave(&card->ip_lock, flags);
8398         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8399                 if (ipatoe->proto != proto)
8400                         continue;
8401                 if (!memcmp(ipatoe->addr, addr,
8402                             (proto == QETH_PROT_IPV4)? 4:16) &&
8403                     (ipatoe->mask_bits == mask_bits)){
8404                         list_del(&ipatoe->entry);
8405                         kfree(ipatoe);
8406                 }
8407         }
8408         spin_unlock_irqrestore(&card->ip_lock, flags);
8409 }
8410
8411 static void
8412 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8413 {
8414         int i, j;
8415         u8 octet;
8416
8417         for (i = 0; i < len; ++i){
8418                 octet = addr[i];
8419                 for (j = 7; j >= 0; --j){
8420                         bits[i*8 + j] = octet & 1;
8421                         octet >>= 1;
8422                 }
8423         }
8424 }
8425
8426 static int
8427 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8428 {
8429         struct qeth_ipato_entry *ipatoe;
8430         u8 addr_bits[128] = {0, };
8431         u8 ipatoe_bits[128] = {0, };
8432         int rc = 0;
8433
8434         if (!card->ipato.enabled)
8435                 return 0;
8436
8437         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8438                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8439         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8440                 if (addr->proto != ipatoe->proto)
8441                         continue;
8442                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8443                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8444                                           4:16);
8445                 if (addr->proto == QETH_PROT_IPV4)
8446                         rc = !memcmp(addr_bits, ipatoe_bits,
8447                                      min(32, ipatoe->mask_bits));
8448                 else
8449                         rc = !memcmp(addr_bits, ipatoe_bits,
8450                                      min(128, ipatoe->mask_bits));
8451                 if (rc)
8452                         break;
8453         }
8454         /* invert? */
8455         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8456                 rc = !rc;
8457         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8458                 rc = !rc;
8459
8460         return rc;
8461 }
8462
8463 /*
8464  * VIPA related functions
8465  */
8466 int
8467 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8468               const u8 *addr)
8469 {
8470         struct qeth_ipaddr *ipaddr;
8471         unsigned long flags;
8472         int rc = 0;
8473
8474         ipaddr = qeth_get_addr_buffer(proto);
8475         if (ipaddr){
8476                 if (proto == QETH_PROT_IPV4){
8477                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8478                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8479                         ipaddr->u.a4.mask = 0;
8480 #ifdef CONFIG_QETH_IPV6
8481                 } else if (proto == QETH_PROT_IPV6){
8482                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8483                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8484                         ipaddr->u.a6.pfxlen = 0;
8485 #endif
8486                 }
8487                 ipaddr->type = QETH_IP_TYPE_VIPA;
8488                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8489                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8490         } else
8491                 return -ENOMEM;
8492         spin_lock_irqsave(&card->ip_lock, flags);
8493         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8494             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8495                 rc = -EEXIST;
8496         spin_unlock_irqrestore(&card->ip_lock, flags);
8497         if (rc){
8498                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8499                 return rc;
8500         }
8501         if (!qeth_add_ip(card, ipaddr))
8502                 kfree(ipaddr);
8503         qeth_set_ip_addr_list(card);
8504         return rc;
8505 }
8506
8507 void
8508 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8509               const u8 *addr)
8510 {
8511         struct qeth_ipaddr *ipaddr;
8512
8513         ipaddr = qeth_get_addr_buffer(proto);
8514         if (ipaddr){
8515                 if (proto == QETH_PROT_IPV4){
8516                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8517                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8518                         ipaddr->u.a4.mask = 0;
8519 #ifdef CONFIG_QETH_IPV6
8520                 } else if (proto == QETH_PROT_IPV6){
8521                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8522                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8523                         ipaddr->u.a6.pfxlen = 0;
8524 #endif
8525                 }
8526                 ipaddr->type = QETH_IP_TYPE_VIPA;
8527         } else
8528                 return;
8529         if (!qeth_delete_ip(card, ipaddr))
8530                 kfree(ipaddr);
8531         qeth_set_ip_addr_list(card);
8532 }
8533
8534 /*
8535  * proxy ARP related functions
8536  */
8537 int
8538 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8539               const u8 *addr)
8540 {
8541         struct qeth_ipaddr *ipaddr;
8542         unsigned long flags;
8543         int rc = 0;
8544
8545         ipaddr = qeth_get_addr_buffer(proto);
8546         if (ipaddr){
8547                 if (proto == QETH_PROT_IPV4){
8548                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8549                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8550                         ipaddr->u.a4.mask = 0;
8551 #ifdef CONFIG_QETH_IPV6
8552                 } else if (proto == QETH_PROT_IPV6){
8553                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8554                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8555                         ipaddr->u.a6.pfxlen = 0;
8556 #endif
8557                 }
8558                 ipaddr->type = QETH_IP_TYPE_RXIP;
8559                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8560                 ipaddr->del_flags = 0;
8561         } else
8562                 return -ENOMEM;
8563         spin_lock_irqsave(&card->ip_lock, flags);
8564         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8565             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8566                 rc = -EEXIST;
8567         spin_unlock_irqrestore(&card->ip_lock, flags);
8568         if (rc){
8569                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8570                 return rc;
8571         }
8572         if (!qeth_add_ip(card, ipaddr))
8573                 kfree(ipaddr);
8574         qeth_set_ip_addr_list(card);
8575         return 0;
8576 }
8577
8578 void
8579 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8580               const u8 *addr)
8581 {
8582         struct qeth_ipaddr *ipaddr;
8583
8584         ipaddr = qeth_get_addr_buffer(proto);
8585         if (ipaddr){
8586                 if (proto == QETH_PROT_IPV4){
8587                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8588                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8589                         ipaddr->u.a4.mask = 0;
8590 #ifdef CONFIG_QETH_IPV6
8591                 } else if (proto == QETH_PROT_IPV6){
8592                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8593                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8594                         ipaddr->u.a6.pfxlen = 0;
8595 #endif
8596                 }
8597                 ipaddr->type = QETH_IP_TYPE_RXIP;
8598         } else
8599                 return;
8600         if (!qeth_delete_ip(card, ipaddr))
8601                 kfree(ipaddr);
8602         qeth_set_ip_addr_list(card);
8603 }
8604
8605 /**
8606  * IP event handler
8607  */
8608 static int
8609 qeth_ip_event(struct notifier_block *this,
8610               unsigned long event,void *ptr)
8611 {
8612         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8613         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8614         struct qeth_ipaddr *addr;
8615         struct qeth_card *card;
8616
8617         QETH_DBF_TEXT(trace,3,"ipevent");
8618         card = qeth_get_card_from_dev(dev);
8619         if (!card)
8620                 return NOTIFY_DONE;
8621         if (card->options.layer2)
8622                 return NOTIFY_DONE;
8623
8624         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8625         if (addr != NULL) {
8626                 addr->u.a4.addr = ifa->ifa_address;
8627                 addr->u.a4.mask = ifa->ifa_mask;
8628                 addr->type = QETH_IP_TYPE_NORMAL;
8629         } else
8630                 goto out;
8631
8632         switch(event) {
8633         case NETDEV_UP:
8634                 if (!qeth_add_ip(card, addr))
8635                         kfree(addr);
8636                 break;
8637         case NETDEV_DOWN:
8638                 if (!qeth_delete_ip(card, addr))
8639                         kfree(addr);
8640                 break;
8641         default:
8642                 break;
8643         }
8644         qeth_set_ip_addr_list(card);
8645 out:
8646         return NOTIFY_DONE;
8647 }
8648
8649 static struct notifier_block qeth_ip_notifier = {
8650         qeth_ip_event,
8651         NULL,
8652 };
8653
8654 #ifdef CONFIG_QETH_IPV6
8655 /**
8656  * IPv6 event handler
8657  */
8658 static int
8659 qeth_ip6_event(struct notifier_block *this,
8660               unsigned long event,void *ptr)
8661 {
8662
8663         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8664         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8665         struct qeth_ipaddr *addr;
8666         struct qeth_card *card;
8667
8668         QETH_DBF_TEXT(trace,3,"ip6event");
8669
8670         card = qeth_get_card_from_dev(dev);
8671         if (!card)
8672                 return NOTIFY_DONE;
8673         if (!qeth_is_supported(card, IPA_IPV6))
8674                 return NOTIFY_DONE;
8675
8676         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8677         if (addr != NULL) {
8678                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8679                 addr->u.a6.pfxlen = ifa->prefix_len;
8680                 addr->type = QETH_IP_TYPE_NORMAL;
8681         } else
8682                 goto out;
8683
8684         switch(event) {
8685         case NETDEV_UP:
8686                 if (!qeth_add_ip(card, addr))
8687                         kfree(addr);
8688                 break;
8689         case NETDEV_DOWN:
8690                 if (!qeth_delete_ip(card, addr))
8691                         kfree(addr);
8692                 break;
8693         default:
8694                 break;
8695         }
8696         qeth_set_ip_addr_list(card);
8697 out:
8698         return NOTIFY_DONE;
8699 }
8700
8701 static struct notifier_block qeth_ip6_notifier = {
8702         qeth_ip6_event,
8703         NULL,
8704 };
8705 #endif
8706
8707 static int
8708 __qeth_reboot_event_card(struct device *dev, void *data)
8709 {
8710         struct qeth_card *card;
8711
8712         card = (struct qeth_card *) dev->driver_data;
8713         qeth_clear_ip_list(card, 0, 0);
8714         qeth_qdio_clear_card(card, 0);
8715         qeth_clear_qdio_buffers(card);
8716         return 0;
8717 }
8718
8719 static int
8720 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8721 {
8722         int ret;
8723
8724         ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8725                                      __qeth_reboot_event_card);
8726         return ret ? NOTIFY_BAD : NOTIFY_DONE;
8727 }
8728
8729
8730 static struct notifier_block qeth_reboot_notifier = {
8731         qeth_reboot_event,
8732         NULL,
8733 };
8734
8735 static int
8736 qeth_register_notifiers(void)
8737 {
8738         int r;
8739
8740         QETH_DBF_TEXT(trace,5,"regnotif");
8741         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8742                 return r;
8743         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8744                 goto out_reboot;
8745 #ifdef CONFIG_QETH_IPV6
8746         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8747                 goto out_ipv4;
8748 #endif
8749         return 0;
8750
8751 #ifdef CONFIG_QETH_IPV6
8752 out_ipv4:
8753         unregister_inetaddr_notifier(&qeth_ip_notifier);
8754 #endif
8755 out_reboot:
8756         unregister_reboot_notifier(&qeth_reboot_notifier);
8757         return r;
8758 }
8759
8760 /**
8761  * unregister all event notifiers
8762  */
8763 static void
8764 qeth_unregister_notifiers(void)
8765 {
8766
8767         QETH_DBF_TEXT(trace,5,"unregnot");
8768         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8769         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8770 #ifdef CONFIG_QETH_IPV6
8771         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8772 #endif /* QETH_IPV6 */
8773
8774 }
8775
8776 #ifdef CONFIG_QETH_IPV6
8777 static int
8778 qeth_ipv6_init(void)
8779 {
8780         qeth_old_arp_constructor = arp_tbl.constructor;
8781         write_lock_bh(&arp_tbl.lock);
8782         arp_tbl.constructor = qeth_arp_constructor;
8783         write_unlock_bh(&arp_tbl.lock);
8784
8785         arp_direct_ops = (struct neigh_ops*)
8786                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8787         if (!arp_direct_ops)
8788                 return -ENOMEM;
8789
8790         memcpy(arp_direct_ops, &arp_direct_ops_template,
8791                sizeof(struct neigh_ops));
8792
8793         return 0;
8794 }
8795
8796 static void
8797 qeth_ipv6_uninit(void)
8798 {
8799         write_lock_bh(&arp_tbl.lock);
8800         arp_tbl.constructor = qeth_old_arp_constructor;
8801         write_unlock_bh(&arp_tbl.lock);
8802         kfree(arp_direct_ops);
8803 }
8804 #endif /* CONFIG_QETH_IPV6 */
8805
8806 static void
8807 qeth_sysfs_unregister(void)
8808 {
8809         s390_root_dev_unregister(qeth_root_dev);
8810         qeth_remove_driver_attributes();
8811         ccw_driver_unregister(&qeth_ccw_driver);
8812         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8813 }
8814
8815 /**
8816  * register qeth at sysfs
8817  */
8818 static int
8819 qeth_sysfs_register(void)
8820 {
8821         int rc;
8822
8823         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8824         if (rc)
8825                 goto out;
8826
8827         rc = ccw_driver_register(&qeth_ccw_driver);
8828         if (rc)
8829                 goto out_ccw_driver;
8830
8831         rc = qeth_create_driver_attributes();
8832         if (rc)
8833                 goto out_qeth_attr;
8834
8835         qeth_root_dev = s390_root_dev_register("qeth");
8836         rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8837         if (!rc)
8838                 goto out;
8839
8840         qeth_remove_driver_attributes();
8841 out_qeth_attr:
8842         ccw_driver_unregister(&qeth_ccw_driver);
8843 out_ccw_driver:
8844         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8845 out:
8846         return rc;
8847 }
8848
8849 /***
8850  * init function
8851  */
8852 static int __init
8853 qeth_init(void)
8854 {
8855         int rc;
8856
8857         PRINT_INFO("loading %s\n", version);
8858
8859         INIT_LIST_HEAD(&qeth_card_list.list);
8860         INIT_LIST_HEAD(&qeth_notify_list);
8861         spin_lock_init(&qeth_notify_lock);
8862         rwlock_init(&qeth_card_list.rwlock);
8863
8864         rc = qeth_register_dbf_views();
8865         if (rc)
8866                 goto out_err;
8867
8868         rc = qeth_sysfs_register();
8869         if (rc)
8870                 goto out_dbf;
8871
8872 #ifdef CONFIG_QETH_IPV6
8873         rc = qeth_ipv6_init();
8874         if (rc) {
8875                 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8876                 goto out_sysfs;
8877         }
8878 #endif /* QETH_IPV6 */
8879         rc = qeth_register_notifiers();
8880         if (rc)
8881                 goto out_ipv6;
8882         rc = qeth_create_procfs_entries();
8883         if (rc)
8884                 goto out_notifiers;
8885
8886         return rc;
8887
8888 out_notifiers:
8889         qeth_unregister_notifiers();
8890 out_ipv6:
8891 #ifdef CONFIG_QETH_IPV6
8892         qeth_ipv6_uninit();
8893 out_sysfs:
8894 #endif /* QETH_IPV6 */
8895         qeth_sysfs_unregister();
8896 out_dbf:
8897         qeth_unregister_dbf_views();
8898 out_err:
8899         PRINT_ERR("Initialization failed with code %d\n", rc);
8900         return rc;
8901 }
8902
8903 static void
8904 __exit qeth_exit(void)
8905 {
8906         struct qeth_card *card, *tmp;
8907         unsigned long flags;
8908
8909         QETH_DBF_TEXT(trace,1, "cleanup.");
8910
8911         /*
8912          * Weed would not need to clean up our devices here, because the
8913          * common device layer calls qeth_remove_device for each device
8914          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8915          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8916          * qeth_remove_device called by the common device layer would otherwise
8917          * do a "hard" shutdown (card->use_hard_stop is set to one in
8918          * qeth_remove_device).
8919          */
8920 again:
8921         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8922         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8923                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8924                 qeth_set_offline(card->gdev);
8925                 qeth_remove_device(card->gdev);
8926                 goto again;
8927         }
8928         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8929 #ifdef CONFIG_QETH_IPV6
8930         qeth_ipv6_uninit();
8931 #endif
8932         qeth_unregister_notifiers();
8933         qeth_remove_procfs_entries();
8934         qeth_sysfs_unregister();
8935         qeth_unregister_dbf_views();
8936         printk("qeth: removed\n");
8937 }
8938
8939 EXPORT_SYMBOL(qeth_osn_register);
8940 EXPORT_SYMBOL(qeth_osn_deregister);
8941 EXPORT_SYMBOL(qeth_osn_assist);
8942 module_init(qeth_init);
8943 module_exit(qeth_exit);
8944 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8945 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8946                                       "Copyright 2000,2003 IBM Corporation\n");
8947
8948 MODULE_LICENSE("GPL");