[NET]: __be'ify *_type_trans()
[linux-2.6.git] / drivers / s390 / net / qeth_main.c
1 /*
2  *
3  * linux/drivers/s390/net/qeth_main.c ($Revision: 1.214 $)
4  *
5  * Linux on zSeries OSA Express and HiperSockets support
6  *
7  * Copyright 2000,2003 IBM Corporation
8  *
9  *    Author(s): Original Code written by
10  *                        Utz Bacher (utz.bacher@de.ibm.com)
11  *               Rewritten by
12  *                        Frank Pavlic (pavlic@de.ibm.com) and
13  *                        Thomas Spatzier <tspat@de.ibm.com>
14  *
15  *    $Revision: 1.214 $         $Date: 2005/05/04 20:19:18 $
16  *
17  * This program is free software; you can redistribute it and/or modify
18  * it under the terms of the GNU General Public License as published by
19  * the Free Software Foundation; either version 2, or (at your option)
20  * any later version.
21  *
22  * This program is distributed in the hope that it will be useful,
23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
25  * GNU General Public License for more details.
26  *
27  * You should have received a copy of the GNU General Public License
28  * along with this program; if not, write to the Free Software
29  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
30  */
31
32 /***
33  * eye catcher; just for debugging purposes
34  */
35 void volatile
36 qeth_eyecatcher(void)
37 {
38         return;
39 }
40
41 #include <linux/config.h>
42 #include <linux/module.h>
43 #include <linux/moduleparam.h>
44 #include <linux/string.h>
45 #include <linux/errno.h>
46 #include <linux/mm.h>
47 #include <linux/ip.h>
48 #include <linux/inetdevice.h>
49 #include <linux/netdevice.h>
50 #include <linux/sched.h>
51 #include <linux/workqueue.h>
52 #include <linux/kernel.h>
53 #include <linux/slab.h>
54 #include <linux/interrupt.h>
55 #include <linux/tcp.h>
56 #include <linux/icmp.h>
57 #include <linux/skbuff.h>
58 #include <linux/in.h>
59 #include <linux/igmp.h>
60 #include <linux/init.h>
61 #include <linux/reboot.h>
62 #include <linux/mii.h>
63 #include <linux/rcupdate.h>
64 #include <linux/ethtool.h>
65
66 #include <net/arp.h>
67 #include <net/ip.h>
68 #include <net/route.h>
69
70 #include <asm/ebcdic.h>
71 #include <asm/io.h>
72 #include <asm/qeth.h>
73 #include <asm/timex.h>
74 #include <asm/semaphore.h>
75 #include <asm/uaccess.h>
76
77 #include "qeth.h"
78 #include "qeth_mpc.h"
79 #include "qeth_fs.h"
80 #include "qeth_eddp.h"
81 #include "qeth_tso.h"
82
83 #define VERSION_QETH_C "$Revision: 1.214 $"
84 static const char *version = "qeth S/390 OSA-Express driver";
85
86 /**
87  * Debug Facility Stuff
88  */
89 static debug_info_t *qeth_dbf_setup = NULL;
90 static debug_info_t *qeth_dbf_data = NULL;
91 static debug_info_t *qeth_dbf_misc = NULL;
92 static debug_info_t *qeth_dbf_control = NULL;
93 debug_info_t *qeth_dbf_trace = NULL;
94 static debug_info_t *qeth_dbf_sense = NULL;
95 static debug_info_t *qeth_dbf_qerr = NULL;
96
97 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
98
99 /**
100  * some more definitions and declarations
101  */
102 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
103
104 /* list of our cards */
105 struct qeth_card_list_struct qeth_card_list;
106 /*process list want to be notified*/
107 spinlock_t qeth_notify_lock;
108 struct list_head qeth_notify_list;
109
110 static void qeth_send_control_data_cb(struct qeth_channel *,
111                                       struct qeth_cmd_buffer *);
112
113 /**
114  * here we go with function implementation
115  */
116 static void
117 qeth_init_qdio_info(struct qeth_card *card);
118
119 static int
120 qeth_init_qdio_queues(struct qeth_card *card);
121
122 static int
123 qeth_alloc_qdio_buffers(struct qeth_card *card);
124
125 static void
126 qeth_free_qdio_buffers(struct qeth_card *);
127
128 static void
129 qeth_clear_qdio_buffers(struct qeth_card *);
130
131 static void
132 qeth_clear_ip_list(struct qeth_card *, int, int);
133
134 static void
135 qeth_clear_ipacmd_list(struct qeth_card *);
136
137 static int
138 qeth_qdio_clear_card(struct qeth_card *, int);
139
140 static void
141 qeth_clear_working_pool_list(struct qeth_card *);
142
143 static void
144 qeth_clear_cmd_buffers(struct qeth_channel *);
145
146 static int
147 qeth_stop(struct net_device *);
148
149 static void
150 qeth_clear_ipato_list(struct qeth_card *);
151
152 static int
153 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
154
155 static void
156 qeth_irq_tasklet(unsigned long);
157
158 static int
159 qeth_set_online(struct ccwgroup_device *);
160
161 static int
162 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
163
164 static struct qeth_ipaddr *
165 qeth_get_addr_buffer(enum qeth_prot_versions);
166
167 static void
168 qeth_set_multicast_list(struct net_device *);
169
170 static void
171 qeth_notify_processes(void)
172 {
173         /*notify all  registered processes */
174         struct qeth_notify_list_struct *n_entry;
175
176         QETH_DBF_TEXT(trace,3,"procnoti");
177         spin_lock(&qeth_notify_lock);
178         list_for_each_entry(n_entry, &qeth_notify_list, list) {
179                 send_sig(n_entry->signum, n_entry->task, 1);
180         }
181         spin_unlock(&qeth_notify_lock);
182
183 }
184 int
185 qeth_notifier_unregister(struct task_struct *p)
186 {
187         struct qeth_notify_list_struct *n_entry, *tmp;
188
189         QETH_DBF_TEXT(trace, 2, "notunreg");
190         spin_lock(&qeth_notify_lock);
191         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
192                 if (n_entry->task == p) {
193                         list_del(&n_entry->list);
194                         kfree(n_entry);
195                         goto out;
196                 }
197         }
198 out:
199         spin_unlock(&qeth_notify_lock);
200         return 0;
201 }
202 int
203 qeth_notifier_register(struct task_struct *p, int signum)
204 {
205         struct qeth_notify_list_struct *n_entry;
206
207
208         /*check first if entry already exists*/
209         spin_lock(&qeth_notify_lock);
210         list_for_each_entry(n_entry, &qeth_notify_list, list) {
211                 if (n_entry->task == p) {
212                         n_entry->signum = signum;
213                         spin_unlock(&qeth_notify_lock);
214                         return 0;
215                 }
216         }
217         spin_unlock(&qeth_notify_lock);
218
219         n_entry = (struct qeth_notify_list_struct *)
220                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
221         if (!n_entry)
222                 return -ENOMEM;
223         n_entry->task = p;
224         n_entry->signum = signum;
225         spin_lock(&qeth_notify_lock);
226         list_add(&n_entry->list,&qeth_notify_list);
227         spin_unlock(&qeth_notify_lock);
228         return 0;
229 }
230
231
232 /**
233  * free channel command buffers
234  */
235 static void
236 qeth_clean_channel(struct qeth_channel *channel)
237 {
238         int cnt;
239
240         QETH_DBF_TEXT(setup, 2, "freech");
241         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
242                 kfree(channel->iob[cnt].data);
243 }
244
245 /**
246  * free card
247  */
248 static void
249 qeth_free_card(struct qeth_card *card)
250 {
251
252         QETH_DBF_TEXT(setup, 2, "freecrd");
253         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
254         qeth_clean_channel(&card->read);
255         qeth_clean_channel(&card->write);
256         if (card->dev)
257                 free_netdev(card->dev);
258         qeth_clear_ip_list(card, 0, 0);
259         qeth_clear_ipato_list(card);
260         kfree(card->ip_tbd_list);
261         qeth_free_qdio_buffers(card);
262         kfree(card);
263 }
264
265 /**
266  * alloc memory for command buffer per channel
267  */
268 static int
269 qeth_setup_channel(struct qeth_channel *channel)
270 {
271         int cnt;
272
273         QETH_DBF_TEXT(setup, 2, "setupch");
274         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
275                 channel->iob[cnt].data = (char *)
276                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
277                 if (channel->iob[cnt].data == NULL)
278                         break;
279                 channel->iob[cnt].state = BUF_STATE_FREE;
280                 channel->iob[cnt].channel = channel;
281                 channel->iob[cnt].callback = qeth_send_control_data_cb;
282                 channel->iob[cnt].rc = 0;
283         }
284         if (cnt < QETH_CMD_BUFFER_NO) {
285                 while (cnt-- > 0)
286                         kfree(channel->iob[cnt].data);
287                 return -ENOMEM;
288         }
289         channel->buf_no = 0;
290         channel->io_buf_no = 0;
291         atomic_set(&channel->irq_pending, 0);
292         spin_lock_init(&channel->iob_lock);
293
294         init_waitqueue_head(&channel->wait_q);
295         channel->irq_tasklet.data = (unsigned long) channel;
296         channel->irq_tasklet.func = qeth_irq_tasklet;
297         return 0;
298 }
299
300 /**
301  * alloc memory for card structure
302  */
303 static struct qeth_card *
304 qeth_alloc_card(void)
305 {
306         struct qeth_card *card;
307
308         QETH_DBF_TEXT(setup, 2, "alloccrd");
309         card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
310                                             GFP_DMA|GFP_KERNEL);
311         if (!card)
312                 return NULL;
313         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
314         memset(card, 0, sizeof(struct qeth_card));
315         if (qeth_setup_channel(&card->read)) {
316                 kfree(card);
317                 return NULL;
318         }
319         if (qeth_setup_channel(&card->write)) {
320                 qeth_clean_channel(&card->read);
321                 kfree(card);
322                 return NULL;
323         }
324         return card;
325 }
326
327 static long
328 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
329 {
330         if (!IS_ERR(irb))
331                 return 0;
332
333         switch (PTR_ERR(irb)) {
334         case -EIO:
335                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
336                 QETH_DBF_TEXT(trace, 2, "ckirberr");
337                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
338                 break;
339         case -ETIMEDOUT:
340                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
341                 QETH_DBF_TEXT(trace, 2, "ckirberr");
342                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
343                 break;
344         default:
345                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
346                            cdev->dev.bus_id);
347                 QETH_DBF_TEXT(trace, 2, "ckirberr");
348                 QETH_DBF_TEXT(trace, 2, "  rc???");
349         }
350         return PTR_ERR(irb);
351 }
352
353 static int
354 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
355 {
356         int dstat,cstat;
357         char *sense;
358
359         sense = (char *) irb->ecw;
360         cstat = irb->scsw.cstat;
361         dstat = irb->scsw.dstat;
362
363         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
364                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
365                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
366                 QETH_DBF_TEXT(trace,2, "CGENCHK");
367                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
368                            cdev->dev.bus_id, dstat, cstat);
369                 HEXDUMP16(WARN, "irb: ", irb);
370                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
371                 return 1;
372         }
373
374         if (dstat & DEV_STAT_UNIT_CHECK) {
375                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
376                     SENSE_RESETTING_EVENT_FLAG) {
377                         QETH_DBF_TEXT(trace,2,"REVIND");
378                         return 1;
379                 }
380                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
381                     SENSE_COMMAND_REJECT_FLAG) {
382                         QETH_DBF_TEXT(trace,2,"CMDREJi");
383                         return 0;
384                 }
385                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
386                         QETH_DBF_TEXT(trace,2,"AFFE");
387                         return 1;
388                 }
389                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
390                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
391                         return 0;
392                 }
393                 QETH_DBF_TEXT(trace,2,"DGENCHK");
394                         return 1;
395         }
396         return 0;
397 }
398 static int qeth_issue_next_read(struct qeth_card *);
399
400 /**
401  * interrupt handler
402  */
403 static void
404 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
405 {
406         int rc;
407         int cstat,dstat;
408         struct qeth_cmd_buffer *buffer;
409         struct qeth_channel *channel;
410         struct qeth_card *card;
411
412         QETH_DBF_TEXT(trace,5,"irq");
413
414         if (__qeth_check_irb_error(cdev, irb))
415                 return;
416         cstat = irb->scsw.cstat;
417         dstat = irb->scsw.dstat;
418
419         card = CARD_FROM_CDEV(cdev);
420         if (!card)
421                 return;
422
423         if (card->read.ccwdev == cdev){
424                 channel = &card->read;
425                 QETH_DBF_TEXT(trace,5,"read");
426         } else if (card->write.ccwdev == cdev) {
427                 channel = &card->write;
428                 QETH_DBF_TEXT(trace,5,"write");
429         } else {
430                 channel = &card->data;
431                 QETH_DBF_TEXT(trace,5,"data");
432         }
433         atomic_set(&channel->irq_pending, 0);
434
435         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
436                 channel->state = CH_STATE_STOPPED;
437
438         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
439                 channel->state = CH_STATE_HALTED;
440
441         /*let's wake up immediately on data channel*/
442         if ((channel == &card->data) && (intparm != 0))
443                 goto out;
444
445         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
446                 QETH_DBF_TEXT(trace, 6, "clrchpar");
447                 /* we don't have to handle this further */
448                 intparm = 0;
449         }
450         if (intparm == QETH_HALT_CHANNEL_PARM) {
451                 QETH_DBF_TEXT(trace, 6, "hltchpar");
452                 /* we don't have to handle this further */
453                 intparm = 0;
454         }
455         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
456             (dstat & DEV_STAT_UNIT_CHECK) ||
457             (cstat)) {
458                 if (irb->esw.esw0.erw.cons) {
459                         /* TODO: we should make this s390dbf */
460                         PRINT_WARN("sense data available on channel %s.\n",
461                                    CHANNEL_ID(channel));
462                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
463                         HEXDUMP16(WARN,"irb: ",irb);
464                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
465                 }
466                 rc = qeth_get_problem(cdev,irb);
467                 if (rc) {
468                         qeth_schedule_recovery(card);
469                         goto out;
470                 }
471         }
472
473         if (intparm) {
474                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
475                 buffer->state = BUF_STATE_PROCESSED;
476         }
477         if (channel == &card->data)
478                 return;
479
480         if (channel == &card->read &&
481             channel->state == CH_STATE_UP)
482                 qeth_issue_next_read(card);
483
484         tasklet_schedule(&channel->irq_tasklet);
485         return;
486 out:
487         wake_up(&card->wait_q);
488 }
489
490 /**
491  * tasklet function scheduled from irq handler
492  */
493 static void
494 qeth_irq_tasklet(unsigned long data)
495 {
496         struct qeth_card *card;
497         struct qeth_channel *channel;
498         struct qeth_cmd_buffer *iob;
499         __u8 index;
500
501         QETH_DBF_TEXT(trace,5,"irqtlet");
502         channel = (struct qeth_channel *) data;
503         iob = channel->iob;
504         index = channel->buf_no;
505         card = CARD_FROM_CDEV(channel->ccwdev);
506         while (iob[index].state == BUF_STATE_PROCESSED) {
507                 if (iob[index].callback !=NULL) {
508                         iob[index].callback(channel,iob + index);
509                 }
510                 index = (index + 1) % QETH_CMD_BUFFER_NO;
511         }
512         channel->buf_no = index;
513         wake_up(&card->wait_q);
514 }
515
516 static int qeth_stop_card(struct qeth_card *, int);
517
518 static int
519 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
520 {
521         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
522         int rc = 0;
523         enum qeth_card_states recover_flag;
524
525         QETH_DBF_TEXT(setup, 3, "setoffl");
526         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
527
528         recover_flag = card->state;
529         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
530                 PRINT_WARN("Stopping card %s interrupted by user!\n",
531                            CARD_BUS_ID(card));
532                 return -ERESTARTSYS;
533         }
534         if ((rc = ccw_device_set_offline(CARD_DDEV(card))) ||
535             (rc = ccw_device_set_offline(CARD_WDEV(card))) ||
536             (rc = ccw_device_set_offline(CARD_RDEV(card)))) {
537                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
538         }
539         if (recover_flag == CARD_STATE_UP)
540                 card->state = CARD_STATE_RECOVER;
541         qeth_notify_processes();
542         return 0;
543 }
544
545 static int
546 qeth_set_offline(struct ccwgroup_device *cgdev)
547 {
548         return  __qeth_set_offline(cgdev, 0);
549 }
550
551 static int
552 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
553
554
555 static void
556 qeth_remove_device(struct ccwgroup_device *cgdev)
557 {
558         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
559         unsigned long flags;
560
561         QETH_DBF_TEXT(setup, 3, "rmdev");
562         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
563
564         if (!card)
565                 return;
566
567         if (qeth_wait_for_threads(card, 0xffffffff))
568                 return;
569
570         if (cgdev->state == CCWGROUP_ONLINE){
571                 card->use_hard_stop = 1;
572                 qeth_set_offline(cgdev);
573         }
574         /* remove form our internal list */
575         write_lock_irqsave(&qeth_card_list.rwlock, flags);
576         list_del(&card->list);
577         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
578         if (card->dev)
579                 unregister_netdev(card->dev);
580         qeth_remove_device_attributes(&cgdev->dev);
581         qeth_free_card(card);
582         cgdev->dev.driver_data = NULL;
583         put_device(&cgdev->dev);
584 }
585
586 static int
587 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
588 static int
589 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
590
591 /**
592  * Add/remove address to/from card's ip list, i.e. try to add or remove
593  * reference to/from an IP address that is already registered on the card.
594  * Returns:
595  *      0  address was on card and its reference count has been adjusted,
596  *         but is still > 0, so nothing has to be done
597  *         also returns 0 if card was not on card and the todo was to delete
598  *         the address -> there is also nothing to be done
599  *      1  address was not on card and the todo is to add it to the card's ip
600  *         list
601  *      -1 address was on card and its reference count has been decremented
602  *         to <= 0 by the todo -> address must be removed from card
603  */
604 static int
605 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
606                       struct qeth_ipaddr **__addr)
607 {
608         struct qeth_ipaddr *addr;
609         int found = 0;
610
611         list_for_each_entry(addr, &card->ip_list, entry) {
612                 if ((addr->proto     == QETH_PROT_IPV4)  &&
613                     (todo->proto     == QETH_PROT_IPV4)  &&
614                     (addr->type      == todo->type)      &&
615                     (addr->u.a4.addr == todo->u.a4.addr) &&
616                     (addr->u.a4.mask == todo->u.a4.mask)   ){
617                         found = 1;
618                         break;
619                 }
620                 if ((addr->proto       == QETH_PROT_IPV6)     &&
621                     (todo->proto       == QETH_PROT_IPV6)     &&
622                     (addr->type        == todo->type)         &&
623                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
624                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
625                             sizeof(struct in6_addr)) == 0))     {
626                         found = 1;
627                         break;
628                 }
629         }
630         if (found){
631                 addr->users += todo->users;
632                 if (addr->users <= 0){
633                         *__addr = addr;
634                         return -1;
635                 } else {
636                         /* for VIPA and RXIP limit refcount to 1 */
637                         if (addr->type != QETH_IP_TYPE_NORMAL)
638                                 addr->users = 1;
639                         return 0;
640                 }
641         }
642         if (todo->users > 0){
643                 /* for VIPA and RXIP limit refcount to 1 */
644                 if (todo->type != QETH_IP_TYPE_NORMAL)
645                         todo->users = 1;
646                 return 1;
647         } else
648                 return 0;
649 }
650
651 static inline int
652 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
653                               int same_type)
654 {
655         struct qeth_ipaddr *tmp;
656
657         list_for_each_entry(tmp, list, entry) {
658                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
659                     (addr->proto    == QETH_PROT_IPV4)            &&
660                     ((same_type && (tmp->type == addr->type)) ||
661                      (!same_type && (tmp->type != addr->type))  ) &&
662                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
663                         return 1;
664                 }
665                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
666                     (addr->proto == QETH_PROT_IPV6)               &&
667                     ((same_type && (tmp->type == addr->type)) ||
668                      (!same_type && (tmp->type != addr->type))  ) &&
669                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
670                             sizeof(struct in6_addr)) == 0)          ) {
671                         return 1;
672                 }
673         }
674         return 0;
675 }
676
677 /*
678  * Add IP to be added to todo list. If there is already an "add todo"
679  * in this list we just incremenent the reference count.
680  * Returns 0 if we  just incremented reference count.
681  */
682 static int
683 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
684 {
685         struct qeth_ipaddr *tmp, *t;
686         int found = 0;
687
688         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
689                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
690                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
691                         return 0;
692                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
693                     (addr->proto       == QETH_PROT_IPV4)     &&
694                     (tmp->type         == addr->type)         &&
695                     (tmp->is_multicast == addr->is_multicast) &&
696                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
697                     (tmp->u.a4.mask    == addr->u.a4.mask)      ){
698                         found = 1;
699                         break;
700                 }
701                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
702                     (addr->proto       == QETH_PROT_IPV6)      &&
703                     (tmp->type         == addr->type)          &&
704                     (tmp->is_multicast == addr->is_multicast)  &&
705                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
706                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
707                             sizeof(struct in6_addr)) == 0)        ){
708                         found = 1;
709                         break;
710                 }
711         }
712         if (found){
713                 if (addr->users != 0)
714                         tmp->users += addr->users;
715                 else
716                         tmp->users += add? 1:-1;
717                 if (tmp->users == 0){
718                         list_del(&tmp->entry);
719                         kfree(tmp);
720                 }
721                 return 0;
722         } else {
723                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
724                         list_add(&addr->entry, card->ip_tbd_list);
725                 else {
726                         if (addr->users == 0)
727                                 addr->users += add? 1:-1;
728                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
729                             qeth_is_addr_covered_by_ipato(card, addr)){
730                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
731                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
732                         }
733                         list_add_tail(&addr->entry, card->ip_tbd_list);
734                 }
735                 return 1;
736         }
737 }
738
739 /**
740  * Remove IP address from list
741  */
742 static int
743 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
744 {
745         unsigned long flags;
746         int rc = 0;
747
748         QETH_DBF_TEXT(trace,4,"delip");
749         if (addr->proto == QETH_PROT_IPV4)
750                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
751         else {
752                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
753                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
754         }
755         spin_lock_irqsave(&card->ip_lock, flags);
756         rc = __qeth_insert_ip_todo(card, addr, 0);
757         spin_unlock_irqrestore(&card->ip_lock, flags);
758         return rc;
759 }
760
761 static int
762 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
763 {
764         unsigned long flags;
765         int rc = 0;
766
767         QETH_DBF_TEXT(trace,4,"addip");
768         if (addr->proto == QETH_PROT_IPV4)
769                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
770         else {
771                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
772                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
773         }
774         spin_lock_irqsave(&card->ip_lock, flags);
775         rc = __qeth_insert_ip_todo(card, addr, 1);
776         spin_unlock_irqrestore(&card->ip_lock, flags);
777         return rc;
778 }
779
780 static inline void
781 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
782 {
783         struct qeth_ipaddr *addr, *tmp;
784         int rc;
785
786         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
787                 if (addr->is_multicast) {
788                         spin_unlock_irqrestore(&card->ip_lock, *flags);
789                         rc = qeth_deregister_addr_entry(card, addr);
790                         spin_lock_irqsave(&card->ip_lock, *flags);
791                         if (!rc) {
792                                 list_del(&addr->entry);
793                                 kfree(addr);
794                         }
795                 }
796         }
797 }
798
799 static void
800 qeth_set_ip_addr_list(struct qeth_card *card)
801 {
802         struct list_head *tbd_list;
803         struct qeth_ipaddr *todo, *addr;
804         unsigned long flags;
805         int rc;
806
807         QETH_DBF_TEXT(trace, 2, "sdiplist");
808         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
809
810         spin_lock_irqsave(&card->ip_lock, flags);
811         tbd_list = card->ip_tbd_list;
812         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
813         if (!card->ip_tbd_list) {
814                 QETH_DBF_TEXT(trace, 0, "silnomem");
815                 card->ip_tbd_list = tbd_list;
816                 spin_unlock_irqrestore(&card->ip_lock, flags);
817                 return;
818         } else
819                 INIT_LIST_HEAD(card->ip_tbd_list);
820
821         while (!list_empty(tbd_list)){
822                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
823                 list_del(&todo->entry);
824                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
825                         __qeth_delete_all_mc(card, &flags);
826                         kfree(todo);
827                         continue;
828                 }
829                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
830                 if (rc == 0) {
831                         /* nothing to be done; only adjusted refcount */
832                         kfree(todo);
833                 } else if (rc == 1) {
834                         /* new entry to be added to on-card list */
835                         spin_unlock_irqrestore(&card->ip_lock, flags);
836                         rc = qeth_register_addr_entry(card, todo);
837                         spin_lock_irqsave(&card->ip_lock, flags);
838                         if (!rc)
839                                 list_add_tail(&todo->entry, &card->ip_list);
840                         else
841                                 kfree(todo);
842                 } else if (rc == -1) {
843                         /* on-card entry to be removed */
844                         list_del_init(&addr->entry);
845                         spin_unlock_irqrestore(&card->ip_lock, flags);
846                         rc = qeth_deregister_addr_entry(card, addr);
847                         spin_lock_irqsave(&card->ip_lock, flags);
848                         if (!rc)
849                                 kfree(addr);
850                         else
851                                 list_add_tail(&addr->entry, &card->ip_list);
852                         kfree(todo);
853                 }
854         }
855         spin_unlock_irqrestore(&card->ip_lock, flags);
856         kfree(tbd_list);
857 }
858
859 static void qeth_delete_mc_addresses(struct qeth_card *);
860 static void qeth_add_multicast_ipv4(struct qeth_card *);
861 #ifdef CONFIG_QETH_IPV6
862 static void qeth_add_multicast_ipv6(struct qeth_card *);
863 #endif
864
865 static inline int
866 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
867 {
868         unsigned long flags;
869
870         spin_lock_irqsave(&card->thread_mask_lock, flags);
871         if ( !(card->thread_allowed_mask & thread) ||
872               (card->thread_start_mask & thread) ) {
873                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
874                 return -EPERM;
875         }
876         card->thread_start_mask |= thread;
877         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
878         return 0;
879 }
880
881 static void
882 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
883 {
884         unsigned long flags;
885
886         spin_lock_irqsave(&card->thread_mask_lock, flags);
887         card->thread_start_mask &= ~thread;
888         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
889         wake_up(&card->wait_q);
890 }
891
892 static void
893 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
894 {
895         unsigned long flags;
896
897         spin_lock_irqsave(&card->thread_mask_lock, flags);
898         card->thread_running_mask &= ~thread;
899         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
900         wake_up(&card->wait_q);
901 }
902
903 static inline int
904 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
905 {
906         unsigned long flags;
907         int rc = 0;
908
909         spin_lock_irqsave(&card->thread_mask_lock, flags);
910         if (card->thread_start_mask & thread){
911                 if ((card->thread_allowed_mask & thread) &&
912                     !(card->thread_running_mask & thread)){
913                         rc = 1;
914                         card->thread_start_mask &= ~thread;
915                         card->thread_running_mask |= thread;
916                 } else
917                         rc = -EPERM;
918         }
919         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
920         return rc;
921 }
922
923 static int
924 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
925 {
926         int rc = 0;
927
928         wait_event(card->wait_q,
929                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
930         return rc;
931 }
932
933 static int
934 qeth_register_ip_addresses(void *ptr)
935 {
936         struct qeth_card *card;
937
938         card = (struct qeth_card *) ptr;
939         daemonize("qeth_reg_ip");
940         QETH_DBF_TEXT(trace,4,"regipth1");
941         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
942                 return 0;
943         QETH_DBF_TEXT(trace,4,"regipth2");
944         qeth_set_ip_addr_list(card);
945         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
946         return 0;
947 }
948
949 static int
950 qeth_recover(void *ptr)
951 {
952         struct qeth_card *card;
953         int rc = 0;
954
955         card = (struct qeth_card *) ptr;
956         daemonize("qeth_recover");
957         QETH_DBF_TEXT(trace,2,"recover1");
958         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
959         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
960                 return 0;
961         QETH_DBF_TEXT(trace,2,"recover2");
962         PRINT_WARN("Recovery of device %s started ...\n",
963                    CARD_BUS_ID(card));
964         card->use_hard_stop = 1;
965         __qeth_set_offline(card->gdev,1);
966         rc = __qeth_set_online(card->gdev,1);
967         if (!rc)
968                 PRINT_INFO("Device %s successfully recovered!\n",
969                            CARD_BUS_ID(card));
970         else
971                 PRINT_INFO("Device %s could not be recovered!\n",
972                            CARD_BUS_ID(card));
973         /* don't run another scheduled recovery */
974         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
975         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
976         return 0;
977 }
978
979 void
980 qeth_schedule_recovery(struct qeth_card *card)
981 {
982         QETH_DBF_TEXT(trace,2,"startrec");
983
984         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
985                 schedule_work(&card->kernel_thread_starter);
986 }
987
988 static int
989 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
990 {
991         unsigned long flags;
992         int rc = 0;
993
994         spin_lock_irqsave(&card->thread_mask_lock, flags);
995         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
996                         (u8) card->thread_start_mask,
997                         (u8) card->thread_allowed_mask,
998                         (u8) card->thread_running_mask);
999         rc = (card->thread_start_mask & thread);
1000         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1001         return rc;
1002 }
1003
1004 static void
1005 qeth_start_kernel_thread(struct qeth_card *card)
1006 {
1007         QETH_DBF_TEXT(trace , 2, "strthrd");
1008
1009         if (card->read.state != CH_STATE_UP &&
1010             card->write.state != CH_STATE_UP)
1011                 return;
1012
1013         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1014                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1015         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1016                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1017 }
1018
1019
1020 static void
1021 qeth_set_intial_options(struct qeth_card *card)
1022 {
1023         card->options.route4.type = NO_ROUTER;
1024 #ifdef CONFIG_QETH_IPV6
1025         card->options.route6.type = NO_ROUTER;
1026 #endif /* QETH_IPV6 */
1027         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1028         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1029         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1030         card->options.fake_broadcast = 0;
1031         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1032         card->options.fake_ll = 0;
1033         card->options.layer2 = 0;
1034 }
1035
1036 /**
1037  * initialize channels ,card and all state machines
1038  */
1039 static int
1040 qeth_setup_card(struct qeth_card *card)
1041 {
1042
1043         QETH_DBF_TEXT(setup, 2, "setupcrd");
1044         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1045
1046         card->read.state  = CH_STATE_DOWN;
1047         card->write.state = CH_STATE_DOWN;
1048         card->data.state  = CH_STATE_DOWN;
1049         card->state = CARD_STATE_DOWN;
1050         card->lan_online = 0;
1051         card->use_hard_stop = 0;
1052         card->dev = NULL;
1053 #ifdef CONFIG_QETH_VLAN
1054         spin_lock_init(&card->vlanlock);
1055         card->vlangrp = NULL;
1056 #endif
1057         spin_lock_init(&card->ip_lock);
1058         spin_lock_init(&card->thread_mask_lock);
1059         card->thread_start_mask = 0;
1060         card->thread_allowed_mask = 0;
1061         card->thread_running_mask = 0;
1062         INIT_WORK(&card->kernel_thread_starter,
1063                   (void *)qeth_start_kernel_thread,card);
1064         INIT_LIST_HEAD(&card->ip_list);
1065         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1066         if (!card->ip_tbd_list) {
1067                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1068                 return -ENOMEM;
1069         }
1070         INIT_LIST_HEAD(card->ip_tbd_list);
1071         INIT_LIST_HEAD(&card->cmd_waiter_list);
1072         init_waitqueue_head(&card->wait_q);
1073         /* intial options */
1074         qeth_set_intial_options(card);
1075         /* IP address takeover */
1076         INIT_LIST_HEAD(&card->ipato.entries);
1077         card->ipato.enabled = 0;
1078         card->ipato.invert4 = 0;
1079         card->ipato.invert6 = 0;
1080         /* init QDIO stuff */
1081         qeth_init_qdio_info(card);
1082         return 0;
1083 }
1084
1085 static int
1086 is_1920_device (struct qeth_card *card)
1087 {
1088         int single_queue = 0;
1089         struct ccw_device *ccwdev;
1090         struct channelPath_dsc {
1091                 u8 flags;
1092                 u8 lsn;
1093                 u8 desc;
1094                 u8 chpid;
1095                 u8 swla;
1096                 u8 zeroes;
1097                 u8 chla;
1098                 u8 chpp;
1099         } *chp_dsc;
1100
1101         QETH_DBF_TEXT(setup, 2, "chk_1920");
1102
1103         ccwdev = card->data.ccwdev;
1104         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1105         if (chp_dsc != NULL) {
1106                 /* CHPP field bit 6 == 1 -> single queue */
1107                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1108                 kfree(chp_dsc);
1109         }
1110         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1111         return single_queue;
1112 }
1113
1114 static int
1115 qeth_determine_card_type(struct qeth_card *card)
1116 {
1117         int i = 0;
1118
1119         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1120
1121         while (known_devices[i][4]) {
1122                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1123                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1124                         card->info.type = known_devices[i][4];
1125                         if (is_1920_device(card)) {
1126                                 PRINT_INFO("Priority Queueing not able "
1127                                            "due to hardware limitations!\n");
1128                                 card->qdio.no_out_queues = 1;
1129                                 card->qdio.default_out_queue = 0;
1130                         } else {
1131                                 card->qdio.no_out_queues = known_devices[i][8];
1132                         }
1133                         card->info.is_multicast_different = known_devices[i][9];
1134                         return 0;
1135                 }
1136                 i++;
1137         }
1138         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1139         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1140         return -ENOENT;
1141 }
1142
1143 static int
1144 qeth_probe_device(struct ccwgroup_device *gdev)
1145 {
1146         struct qeth_card *card;
1147         struct device *dev;
1148         unsigned long flags;
1149         int rc;
1150
1151         QETH_DBF_TEXT(setup, 2, "probedev");
1152
1153         dev = &gdev->dev;
1154         if (!get_device(dev))
1155                 return -ENODEV;
1156
1157         card = qeth_alloc_card();
1158         if (!card) {
1159                 put_device(dev);
1160                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1161                 return -ENOMEM;
1162         }
1163         card->read.ccwdev  = gdev->cdev[0];
1164         card->write.ccwdev = gdev->cdev[1];
1165         card->data.ccwdev  = gdev->cdev[2];
1166
1167         if ((rc = qeth_setup_card(card))){
1168                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1169                 put_device(dev);
1170                 qeth_free_card(card);
1171                 return rc;
1172         }
1173         gdev->dev.driver_data = card;
1174         card->gdev = gdev;
1175         gdev->cdev[0]->handler = qeth_irq;
1176         gdev->cdev[1]->handler = qeth_irq;
1177         gdev->cdev[2]->handler = qeth_irq;
1178
1179         rc = qeth_create_device_attributes(dev);
1180         if (rc) {
1181                 put_device(dev);
1182                 qeth_free_card(card);
1183                 return rc;
1184         }
1185         if ((rc = qeth_determine_card_type(card))){
1186                 PRINT_WARN("%s: not a valid card type\n", __func__);
1187                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1188                 put_device(dev);
1189                 qeth_free_card(card);
1190                 return rc;
1191         }
1192         /* insert into our internal list */
1193         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1194         list_add_tail(&card->list, &qeth_card_list.list);
1195         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1196         return rc;
1197 }
1198
1199
1200 static int
1201 qeth_get_unitaddr(struct qeth_card *card)
1202 {
1203         int length;
1204         char *prcd;
1205         int rc;
1206
1207         QETH_DBF_TEXT(setup, 2, "getunit");
1208         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1209         if (rc) {
1210                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1211                           CARD_DDEV_ID(card), rc);
1212                 return rc;
1213         }
1214         card->info.chpid = prcd[30];
1215         card->info.unit_addr2 = prcd[31];
1216         card->info.cula = prcd[63];
1217         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1218                                (prcd[0x11] == _ascebc['M']));
1219         return 0;
1220 }
1221
1222 static void
1223 qeth_init_tokens(struct qeth_card *card)
1224 {
1225         card->token.issuer_rm_w = 0x00010103UL;
1226         card->token.cm_filter_w = 0x00010108UL;
1227         card->token.cm_connection_w = 0x0001010aUL;
1228         card->token.ulp_filter_w = 0x0001010bUL;
1229         card->token.ulp_connection_w = 0x0001010dUL;
1230 }
1231
1232 static inline __u16
1233 raw_devno_from_bus_id(char *id)
1234 {
1235         id += (strlen(id) - 4);
1236         return (__u16) simple_strtoul(id, &id, 16);
1237 }
1238 /**
1239  * setup channel
1240  */
1241 static void
1242 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1243 {
1244         struct qeth_card *card;
1245
1246         QETH_DBF_TEXT(trace, 4, "setupccw");
1247         card = CARD_FROM_CDEV(channel->ccwdev);
1248         if (channel == &card->read)
1249                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1250         else
1251                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1252         channel->ccw.count = len;
1253         channel->ccw.cda = (__u32) __pa(iob);
1254 }
1255
1256 /**
1257  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1258  */
1259 static struct qeth_cmd_buffer *
1260 __qeth_get_buffer(struct qeth_channel *channel)
1261 {
1262         __u8 index;
1263
1264         QETH_DBF_TEXT(trace, 6, "getbuff");
1265         index = channel->io_buf_no;
1266         do {
1267                 if (channel->iob[index].state == BUF_STATE_FREE) {
1268                         channel->iob[index].state = BUF_STATE_LOCKED;
1269                         channel->io_buf_no = (channel->io_buf_no + 1) %
1270                                 QETH_CMD_BUFFER_NO;
1271                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1272                         return channel->iob + index;
1273                 }
1274                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1275         } while(index != channel->io_buf_no);
1276
1277         return NULL;
1278 }
1279
1280 /**
1281  * release command buffer
1282  */
1283 static void
1284 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1285 {
1286         unsigned long flags;
1287
1288         QETH_DBF_TEXT(trace, 6, "relbuff");
1289         spin_lock_irqsave(&channel->iob_lock, flags);
1290         memset(iob->data, 0, QETH_BUFSIZE);
1291         iob->state = BUF_STATE_FREE;
1292         iob->callback = qeth_send_control_data_cb;
1293         iob->rc = 0;
1294         spin_unlock_irqrestore(&channel->iob_lock, flags);
1295 }
1296
1297 static struct qeth_cmd_buffer *
1298 qeth_get_buffer(struct qeth_channel *channel)
1299 {
1300         struct qeth_cmd_buffer *buffer = NULL;
1301         unsigned long flags;
1302
1303         spin_lock_irqsave(&channel->iob_lock, flags);
1304         buffer = __qeth_get_buffer(channel);
1305         spin_unlock_irqrestore(&channel->iob_lock, flags);
1306         return buffer;
1307 }
1308
1309 static struct qeth_cmd_buffer *
1310 qeth_wait_for_buffer(struct qeth_channel *channel)
1311 {
1312         struct qeth_cmd_buffer *buffer;
1313         wait_event(channel->wait_q,
1314                    ((buffer = qeth_get_buffer(channel)) != NULL));
1315         return buffer;
1316 }
1317
1318 static void
1319 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1320 {
1321         int cnt = 0;
1322
1323         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1324                 qeth_release_buffer(channel,&channel->iob[cnt]);
1325         channel->buf_no = 0;
1326         channel->io_buf_no = 0;
1327 }
1328
1329 /**
1330  * start IDX for read and write channel
1331  */
1332 static int
1333 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1334                               void (*idx_reply_cb)(struct qeth_channel *,
1335                                                    struct qeth_cmd_buffer *))
1336 {
1337         struct qeth_cmd_buffer *iob;
1338         unsigned long flags;
1339         int rc;
1340         struct qeth_card *card;
1341
1342         QETH_DBF_TEXT(setup, 2, "idxanswr");
1343         card = CARD_FROM_CDEV(channel->ccwdev);
1344         iob = qeth_get_buffer(channel);
1345         iob->callback = idx_reply_cb;
1346         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1347         channel->ccw.count = QETH_BUFSIZE;
1348         channel->ccw.cda = (__u32) __pa(iob->data);
1349
1350         wait_event(card->wait_q,
1351                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1352         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1353         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1354         rc = ccw_device_start(channel->ccwdev,
1355                               &channel->ccw,(addr_t) iob, 0, 0);
1356         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1357
1358         if (rc) {
1359                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1360                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1361                 atomic_set(&channel->irq_pending, 0);
1362                 wake_up(&card->wait_q);
1363                 return rc;
1364         }
1365         rc = wait_event_interruptible_timeout(card->wait_q,
1366                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1367         if (rc == -ERESTARTSYS)
1368                 return rc;
1369         if (channel->state != CH_STATE_UP){
1370                 rc = -ETIME;
1371                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1372                 qeth_clear_cmd_buffers(channel);
1373         } else
1374                 rc = 0;
1375         return rc;
1376 }
1377
1378 static int
1379 qeth_idx_activate_channel(struct qeth_channel *channel,
1380                            void (*idx_reply_cb)(struct qeth_channel *,
1381                                                 struct qeth_cmd_buffer *))
1382 {
1383         struct qeth_card *card;
1384         struct qeth_cmd_buffer *iob;
1385         unsigned long flags;
1386         __u16 temp;
1387         int rc;
1388
1389         card = CARD_FROM_CDEV(channel->ccwdev);
1390
1391         QETH_DBF_TEXT(setup, 2, "idxactch");
1392
1393         iob = qeth_get_buffer(channel);
1394         iob->callback = idx_reply_cb;
1395         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1396         channel->ccw.count = IDX_ACTIVATE_SIZE;
1397         channel->ccw.cda = (__u32) __pa(iob->data);
1398         if (channel == &card->write) {
1399                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1400                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1401                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1402                 card->seqno.trans_hdr++;
1403         } else {
1404                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1405                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1406                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1407         }
1408         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1409                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1410         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1411                &card->info.func_level,sizeof(__u16));
1412         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1413         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1414         temp = (card->info.cula << 8) + card->info.unit_addr2;
1415         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1416
1417         wait_event(card->wait_q,
1418                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1419         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1420         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1421         rc = ccw_device_start(channel->ccwdev,
1422                               &channel->ccw,(addr_t) iob, 0, 0);
1423         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1424
1425         if (rc) {
1426                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1427                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1428                 atomic_set(&channel->irq_pending, 0);
1429                 wake_up(&card->wait_q);
1430                 return rc;
1431         }
1432         rc = wait_event_interruptible_timeout(card->wait_q,
1433                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1434         if (rc == -ERESTARTSYS)
1435                 return rc;
1436         if (channel->state != CH_STATE_ACTIVATING) {
1437                 PRINT_WARN("qeth: IDX activate timed out!\n");
1438                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1439                 qeth_clear_cmd_buffers(channel);
1440                 return -ETIME;
1441         }
1442         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1443 }
1444
1445 static int
1446 qeth_peer_func_level(int level)
1447 {
1448         if ((level & 0xff) == 8)
1449                 return (level & 0xff) + 0x400;
1450         if (((level >> 8) & 3) == 1)
1451                 return (level & 0xff) + 0x200;
1452         return level;
1453 }
1454
1455 static void
1456 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1457 {
1458         struct qeth_card *card;
1459         __u16 temp;
1460
1461         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1462
1463         if (channel->state == CH_STATE_DOWN) {
1464                 channel->state = CH_STATE_ACTIVATING;
1465                 goto out;
1466         }
1467         card = CARD_FROM_CDEV(channel->ccwdev);
1468
1469         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1470                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1471                           "reply\n", CARD_WDEV_ID(card));
1472                 goto out;
1473         }
1474         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1475         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1476                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1477                            "function level mismatch "
1478                            "(sent: 0x%x, received: 0x%x)\n",
1479                            CARD_WDEV_ID(card), card->info.func_level, temp);
1480                 goto out;
1481         }
1482         channel->state = CH_STATE_UP;
1483 out:
1484         qeth_release_buffer(channel, iob);
1485 }
1486
1487 static int
1488 qeth_check_idx_response(unsigned char *buffer)
1489 {
1490         if (!buffer)
1491                 return 0;
1492
1493         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1494         if ((buffer[2] & 0xc0) == 0xc0) {
1495                 PRINT_WARN("received an IDX TERMINATE "
1496                            "with cause code 0x%02x%s\n",
1497                            buffer[4],
1498                            ((buffer[4] == 0x22) ?
1499                             " -- try another portname" : ""));
1500                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1501                 QETH_DBF_TEXT(trace, 2, " idxterm");
1502                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1503                 return -EIO;
1504         }
1505         return 0;
1506 }
1507
1508 static void
1509 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1510 {
1511         struct qeth_card *card;
1512         __u16 temp;
1513
1514         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1515         if (channel->state == CH_STATE_DOWN) {
1516                 channel->state = CH_STATE_ACTIVATING;
1517                 goto out;
1518         }
1519
1520         card = CARD_FROM_CDEV(channel->ccwdev);
1521         if (qeth_check_idx_response(iob->data)) {
1522                         goto out;
1523         }
1524         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1525                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1526                           "reply\n", CARD_RDEV_ID(card));
1527                 goto out;
1528         }
1529
1530 /**
1531  * temporary fix for microcode bug
1532  * to revert it,replace OR by AND
1533  */
1534         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1535              (card->info.type == QETH_CARD_TYPE_OSAE) )
1536                 card->info.portname_required = 1;
1537
1538         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1539         if (temp != qeth_peer_func_level(card->info.func_level)) {
1540                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1541                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1542                            CARD_RDEV_ID(card), card->info.func_level, temp);
1543                 goto out;
1544         }
1545         memcpy(&card->token.issuer_rm_r,
1546                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1547                QETH_MPC_TOKEN_LENGTH);
1548         memcpy(&card->info.mcl_level[0],
1549                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1550         channel->state = CH_STATE_UP;
1551 out:
1552         qeth_release_buffer(channel,iob);
1553 }
1554
1555 static int
1556 qeth_issue_next_read(struct qeth_card *card)
1557 {
1558         int rc;
1559         struct qeth_cmd_buffer *iob;
1560
1561         QETH_DBF_TEXT(trace,5,"issnxrd");
1562         if (card->read.state != CH_STATE_UP)
1563                 return -EIO;
1564         iob = qeth_get_buffer(&card->read);
1565         if (!iob) {
1566                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1567                 return -ENOMEM;
1568         }
1569         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1570         wait_event(card->wait_q,
1571                    atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1572         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1573         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1574                               (addr_t) iob, 0, 0);
1575         if (rc) {
1576                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1577                 atomic_set(&card->read.irq_pending, 0);
1578                 qeth_schedule_recovery(card);
1579                 wake_up(&card->wait_q);
1580         }
1581         return rc;
1582 }
1583
1584 static struct qeth_reply *
1585 qeth_alloc_reply(struct qeth_card *card)
1586 {
1587         struct qeth_reply *reply;
1588
1589         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1590         if (reply){
1591                 memset(reply, 0, sizeof(struct qeth_reply));
1592                 atomic_set(&reply->refcnt, 1);
1593                 reply->card = card;
1594         };
1595         return reply;
1596 }
1597
1598 static void
1599 qeth_get_reply(struct qeth_reply *reply)
1600 {
1601         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1602         atomic_inc(&reply->refcnt);
1603 }
1604
1605 static void
1606 qeth_put_reply(struct qeth_reply *reply)
1607 {
1608         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1609         if (atomic_dec_and_test(&reply->refcnt))
1610                 kfree(reply);
1611 }
1612
1613 static void
1614 qeth_cmd_timeout(unsigned long data)
1615 {
1616         struct qeth_reply *reply, *list_reply, *r;
1617         unsigned long flags;
1618
1619         reply = (struct qeth_reply *) data;
1620         spin_lock_irqsave(&reply->card->lock, flags);
1621         list_for_each_entry_safe(list_reply, r,
1622                                  &reply->card->cmd_waiter_list, list) {
1623                 if (reply == list_reply){
1624                         qeth_get_reply(reply);
1625                         list_del_init(&reply->list);
1626                         spin_unlock_irqrestore(&reply->card->lock, flags);
1627                         reply->rc = -ETIME;
1628                         reply->received = 1;
1629                         wake_up(&reply->wait_q);
1630                         qeth_put_reply(reply);
1631                         return;
1632                 }
1633         }
1634         spin_unlock_irqrestore(&reply->card->lock, flags);
1635 }
1636
1637 static void
1638 qeth_reset_ip_addresses(struct qeth_card *card)
1639 {
1640         QETH_DBF_TEXT(trace, 2, "rstipadd");
1641
1642         qeth_clear_ip_list(card, 0, 1);
1643         /* this function will also schedule the SET_IP_THREAD */
1644         qeth_set_multicast_list(card->dev);
1645 }
1646
1647 static struct qeth_ipa_cmd *
1648 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1649 {
1650         struct qeth_ipa_cmd *cmd = NULL;
1651
1652         QETH_DBF_TEXT(trace,5,"chkipad");
1653         if (IS_IPA(iob->data)){
1654                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1655                 if (IS_IPA_REPLY(cmd))
1656                         return cmd;
1657                 else {
1658                         switch (cmd->hdr.command) {
1659                         case IPA_CMD_STOPLAN:
1660                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1661                                            "there is a network problem or "
1662                                            "someone pulled the cable or "
1663                                            "disabled the port.\n",
1664                                            QETH_CARD_IFNAME(card),
1665                                            card->info.chpid);
1666                                 card->lan_online = 0;
1667                                 netif_carrier_off(card->dev);
1668                                 return NULL;
1669                         case IPA_CMD_STARTLAN:
1670                                 PRINT_INFO("Link reestablished on %s "
1671                                            "(CHPID 0x%X). Scheduling "
1672                                            "IP address reset.\n",
1673                                            QETH_CARD_IFNAME(card),
1674                                            card->info.chpid);
1675                                 card->lan_online = 1;
1676                                 netif_carrier_on(card->dev);
1677                                 qeth_reset_ip_addresses(card);
1678                                 return NULL;
1679                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1680                                 QETH_DBF_TEXT(trace,3, "irla");
1681                                 break;
1682                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1683                                 QETH_DBF_TEXT(trace,3, "urla");
1684                                 break;
1685                         default:
1686                                 PRINT_WARN("Received data is IPA "
1687                                            "but not a reply!\n");
1688                                 break;
1689                         }
1690                 }
1691         }
1692         return cmd;
1693 }
1694
1695 /**
1696  * wake all waiting ipa commands
1697  */
1698 static void
1699 qeth_clear_ipacmd_list(struct qeth_card *card)
1700 {
1701         struct qeth_reply *reply, *r;
1702         unsigned long flags;
1703
1704         QETH_DBF_TEXT(trace, 4, "clipalst");
1705
1706         spin_lock_irqsave(&card->lock, flags);
1707         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1708                 qeth_get_reply(reply);
1709                 reply->rc = -EIO;
1710                 reply->received = 1;
1711                 list_del_init(&reply->list);
1712                 wake_up(&reply->wait_q);
1713                 qeth_put_reply(reply);
1714         }
1715         spin_unlock_irqrestore(&card->lock, flags);
1716 }
1717
1718 static void
1719 qeth_send_control_data_cb(struct qeth_channel *channel,
1720                           struct qeth_cmd_buffer *iob)
1721 {
1722         struct qeth_card *card;
1723         struct qeth_reply *reply, *r;
1724         struct qeth_ipa_cmd *cmd;
1725         unsigned long flags;
1726         int keep_reply;
1727
1728         QETH_DBF_TEXT(trace,4,"sndctlcb");
1729
1730         card = CARD_FROM_CDEV(channel->ccwdev);
1731         if (qeth_check_idx_response(iob->data)) {
1732                 qeth_clear_ipacmd_list(card);
1733                 qeth_schedule_recovery(card);
1734                 goto out;
1735         }
1736
1737         cmd = qeth_check_ipa_data(card, iob);
1738         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1739                 goto out;
1740
1741         spin_lock_irqsave(&card->lock, flags);
1742         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1743                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1744                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1745                         qeth_get_reply(reply);
1746                         list_del_init(&reply->list);
1747                         spin_unlock_irqrestore(&card->lock, flags);
1748                         keep_reply = 0;
1749                         if (reply->callback != NULL) {
1750                                 if (cmd) {
1751                                         reply->offset = (__u16)((char*)cmd -
1752                                                                 (char *)iob->data);
1753                                         keep_reply = reply->callback(card,
1754                                                         reply,
1755                                                         (unsigned long)cmd);
1756                                 }
1757                                 else
1758                                         keep_reply = reply->callback(card,
1759                                                         reply,
1760                                                         (unsigned long)iob);
1761                         }
1762                         if (cmd)
1763                                 reply->rc = (u16) cmd->hdr.return_code;
1764                         else if (iob->rc)
1765                                 reply->rc = iob->rc;
1766                         if (keep_reply) {
1767                                 spin_lock_irqsave(&card->lock, flags);
1768                                 list_add_tail(&reply->list,
1769                                               &card->cmd_waiter_list);
1770                                 spin_unlock_irqrestore(&card->lock, flags);
1771                         } else {
1772                                 reply->received = 1;
1773                                 wake_up(&reply->wait_q);
1774                         }
1775                         qeth_put_reply(reply);
1776                         goto out;
1777                 }
1778         }
1779         spin_unlock_irqrestore(&card->lock, flags);
1780 out:
1781         memcpy(&card->seqno.pdu_hdr_ack,
1782                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1783                 QETH_SEQ_NO_LENGTH);
1784         qeth_release_buffer(channel,iob);
1785 }
1786
1787 static int
1788 qeth_send_control_data(struct qeth_card *card, int len,
1789                        struct qeth_cmd_buffer *iob,
1790                        int (*reply_cb)
1791                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1792                        void *reply_param)
1793
1794 {
1795         int rc;
1796         unsigned long flags;
1797         struct qeth_reply *reply;
1798         struct timer_list timer;
1799
1800         QETH_DBF_TEXT(trace, 2, "sendctl");
1801
1802         qeth_setup_ccw(&card->write,iob->data,len);
1803
1804         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1805                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1806         card->seqno.trans_hdr++;
1807
1808         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1809                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1810         card->seqno.pdu_hdr++;
1811         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1812                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1813         iob->callback = qeth_release_buffer;
1814
1815         reply = qeth_alloc_reply(card);
1816         if (!reply) {
1817                 PRINT_WARN("Could no alloc qeth_reply!\n");
1818                 return -ENOMEM;
1819         }
1820         reply->callback = reply_cb;
1821         reply->param = reply_param;
1822         if (card->state == CARD_STATE_DOWN)
1823                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1824         else
1825                 reply->seqno = card->seqno.ipa++;
1826         init_timer(&timer);
1827         timer.function = qeth_cmd_timeout;
1828         timer.data = (unsigned long) reply;
1829         if (IS_IPA(iob->data))
1830                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1831         else
1832                 timer.expires = jiffies + QETH_TIMEOUT;
1833         init_waitqueue_head(&reply->wait_q);
1834         spin_lock_irqsave(&card->lock, flags);
1835         list_add_tail(&reply->list, &card->cmd_waiter_list);
1836         spin_unlock_irqrestore(&card->lock, flags);
1837         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1838         wait_event(card->wait_q,
1839                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1840         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1841         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1842         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1843                               (addr_t) iob, 0, 0);
1844         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1845         if (rc){
1846                 PRINT_WARN("qeth_send_control_data: "
1847                            "ccw_device_start rc = %i\n", rc);
1848                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1849                 spin_lock_irqsave(&card->lock, flags);
1850                 list_del_init(&reply->list);
1851                 qeth_put_reply(reply);
1852                 spin_unlock_irqrestore(&card->lock, flags);
1853                 qeth_release_buffer(iob->channel, iob);
1854                 atomic_set(&card->write.irq_pending, 0);
1855                 wake_up(&card->wait_q);
1856                 return rc;
1857         }
1858         add_timer(&timer);
1859         wait_event(reply->wait_q, reply->received);
1860         del_timer_sync(&timer);
1861         rc = reply->rc;
1862         qeth_put_reply(reply);
1863         return rc;
1864 }
1865
1866 static int
1867 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1868                   int (*reply_cb)
1869                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1870                   void *reply_param)
1871 {
1872         int rc;
1873         char prot_type;
1874
1875         QETH_DBF_TEXT(trace,4,"sendipa");
1876
1877         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1878
1879         if (card->options.layer2)
1880                 prot_type = QETH_PROT_LAYER2;
1881         else
1882                 prot_type = QETH_PROT_TCPIP;
1883
1884         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1885         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1886                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1887
1888         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1889                                     reply_cb, reply_param);
1890         return rc;
1891 }
1892
1893
1894 static int
1895 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1896                   unsigned long data)
1897 {
1898         struct qeth_cmd_buffer *iob;
1899
1900         QETH_DBF_TEXT(setup, 2, "cmenblcb");
1901
1902         iob = (struct qeth_cmd_buffer *) data;
1903         memcpy(&card->token.cm_filter_r,
1904                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1905                QETH_MPC_TOKEN_LENGTH);
1906         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1907         return 0;
1908 }
1909
1910 static int
1911 qeth_cm_enable(struct qeth_card *card)
1912 {
1913         int rc;
1914         struct qeth_cmd_buffer *iob;
1915
1916         QETH_DBF_TEXT(setup,2,"cmenable");
1917
1918         iob = qeth_wait_for_buffer(&card->write);
1919         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1920         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1921                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1922         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1923                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1924
1925         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1926                                     qeth_cm_enable_cb, NULL);
1927         return rc;
1928 }
1929
1930 static int
1931 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1932                  unsigned long data)
1933 {
1934
1935         struct qeth_cmd_buffer *iob;
1936
1937         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1938
1939         iob = (struct qeth_cmd_buffer *) data;
1940         memcpy(&card->token.cm_connection_r,
1941                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1942                QETH_MPC_TOKEN_LENGTH);
1943         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1944         return 0;
1945 }
1946
1947 static int
1948 qeth_cm_setup(struct qeth_card *card)
1949 {
1950         int rc;
1951         struct qeth_cmd_buffer *iob;
1952
1953         QETH_DBF_TEXT(setup,2,"cmsetup");
1954
1955         iob = qeth_wait_for_buffer(&card->write);
1956         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1957         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1958                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1959         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1960                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1961         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1962                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1963         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1964                                     qeth_cm_setup_cb, NULL);
1965         return rc;
1966
1967 }
1968
1969 static int
1970 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1971                    unsigned long data)
1972 {
1973
1974         __u16 mtu, framesize;
1975         __u16 len;
1976         __u8 link_type;
1977         struct qeth_cmd_buffer *iob;
1978
1979         QETH_DBF_TEXT(setup, 2, "ulpenacb");
1980
1981         iob = (struct qeth_cmd_buffer *) data;
1982         memcpy(&card->token.ulp_filter_r,
1983                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1984                QETH_MPC_TOKEN_LENGTH);
1985         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1986                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1987                 mtu = qeth_get_mtu_outof_framesize(framesize);
1988                 if (!mtu) {
1989                         iob->rc = -EINVAL;
1990                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1991                         return 0;
1992                 }
1993                 card->info.max_mtu = mtu;
1994                 card->info.initial_mtu = mtu;
1995                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1996         } else {
1997                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1998                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1999                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2000         }
2001
2002         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2003         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2004                 memcpy(&link_type,
2005                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2006                 card->info.link_type = link_type;
2007         } else
2008                 card->info.link_type = 0;
2009         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2010         return 0;
2011 }
2012
2013 static int
2014 qeth_ulp_enable(struct qeth_card *card)
2015 {
2016         int rc;
2017         char prot_type;
2018         struct qeth_cmd_buffer *iob;
2019
2020         /*FIXME: trace view callbacks*/
2021         QETH_DBF_TEXT(setup,2,"ulpenabl");
2022
2023         iob = qeth_wait_for_buffer(&card->write);
2024         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2025
2026         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2027                 (__u8) card->info.portno;
2028         if (card->options.layer2)
2029                 prot_type = QETH_PROT_LAYER2;
2030         else
2031                 prot_type = QETH_PROT_TCPIP;
2032
2033         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2034         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2035                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2036         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2037                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2038         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2039                card->info.portname, 9);
2040         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2041                                     qeth_ulp_enable_cb, NULL);
2042         return rc;
2043
2044 }
2045
2046 static inline __u16
2047 __raw_devno_from_bus_id(char *id)
2048 {
2049         id += (strlen(id) - 4);
2050         return (__u16) simple_strtoul(id, &id, 16);
2051 }
2052
2053 static int
2054 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2055                   unsigned long data)
2056 {
2057         struct qeth_cmd_buffer *iob;
2058
2059         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2060
2061         iob = (struct qeth_cmd_buffer *) data;
2062         memcpy(&card->token.ulp_connection_r,
2063                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2064                QETH_MPC_TOKEN_LENGTH);
2065         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2066         return 0;
2067 }
2068
2069 static int
2070 qeth_ulp_setup(struct qeth_card *card)
2071 {
2072         int rc;
2073         __u16 temp;
2074         struct qeth_cmd_buffer *iob;
2075
2076         QETH_DBF_TEXT(setup,2,"ulpsetup");
2077
2078         iob = qeth_wait_for_buffer(&card->write);
2079         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2080
2081         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2082                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2083         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2084                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2085         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2086                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2087
2088         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2089         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2090         temp = (card->info.cula << 8) + card->info.unit_addr2;
2091         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2092         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2093                                     qeth_ulp_setup_cb, NULL);
2094         return rc;
2095 }
2096
2097 static inline int
2098 qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2099                              unsigned int qdio_error,
2100                              unsigned int siga_error)
2101 {
2102         int rc = 0;
2103
2104         if (qdio_error || siga_error) {
2105                 QETH_DBF_TEXT(trace, 2, "qdinerr");
2106                 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2107                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2108                                buf->buffer->element[15].flags & 0xff);
2109                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2110                                buf->buffer->element[14].flags & 0xff);
2111                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2112                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2113                 rc = 1;
2114         }
2115         return rc;
2116 }
2117
2118 static inline struct sk_buff *
2119 qeth_get_skb(unsigned int length)
2120 {
2121         struct sk_buff* skb;
2122 #ifdef CONFIG_QETH_VLAN
2123         if ((skb = dev_alloc_skb(length + VLAN_HLEN)))
2124                 skb_reserve(skb, VLAN_HLEN);
2125 #else
2126         skb = dev_alloc_skb(length);
2127 #endif
2128         return skb;
2129 }
2130
2131 static inline struct sk_buff *
2132 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2133                   struct qdio_buffer_element **__element, int *__offset,
2134                   struct qeth_hdr **hdr)
2135 {
2136         struct qdio_buffer_element *element = *__element;
2137         int offset = *__offset;
2138         struct sk_buff *skb = NULL;
2139         int skb_len;
2140         void *data_ptr;
2141         int data_len;
2142
2143         QETH_DBF_TEXT(trace,6,"nextskb");
2144         /* qeth_hdr must not cross element boundaries */
2145         if (element->length < offset + sizeof(struct qeth_hdr)){
2146                 if (qeth_is_last_sbale(element))
2147                         return NULL;
2148                 element++;
2149                 offset = 0;
2150                 if (element->length < sizeof(struct qeth_hdr))
2151                         return NULL;
2152         }
2153         *hdr = element->addr + offset;
2154
2155         offset += sizeof(struct qeth_hdr);
2156         if (card->options.layer2)
2157                 skb_len = (*hdr)->hdr.l2.pkt_length;
2158         else
2159                 skb_len = (*hdr)->hdr.l3.length;
2160
2161         if (!skb_len)
2162                 return NULL;
2163         if (card->options.fake_ll){
2164                 if(card->dev->type == ARPHRD_IEEE802_TR){
2165                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR)))
2166                                 goto no_mem;
2167                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2168                 } else {
2169                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH)))
2170                                 goto no_mem;
2171                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2172                 }
2173         } else if (!(skb = qeth_get_skb(skb_len)))
2174                 goto no_mem;
2175         data_ptr = element->addr + offset;
2176         while (skb_len) {
2177                 data_len = min(skb_len, (int)(element->length - offset));
2178                 if (data_len)
2179                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2180                 skb_len -= data_len;
2181                 if (skb_len){
2182                         if (qeth_is_last_sbale(element)){
2183                                 QETH_DBF_TEXT(trace,4,"unexeob");
2184                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2185                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2186                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2187                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2188                                 dev_kfree_skb_any(skb);
2189                                 card->stats.rx_errors++;
2190                                 return NULL;
2191                         }
2192                         element++;
2193                         offset = 0;
2194                         data_ptr = element->addr;
2195                 } else {
2196                         offset += data_len;
2197                 }
2198         }
2199         *__element = element;
2200         *__offset = offset;
2201         return skb;
2202 no_mem:
2203         if (net_ratelimit()){
2204                 PRINT_WARN("No memory for packet received on %s.\n",
2205                            QETH_CARD_IFNAME(card));
2206                 QETH_DBF_TEXT(trace,2,"noskbmem");
2207                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2208         }
2209         card->stats.rx_dropped++;
2210         return NULL;
2211 }
2212
2213 static inline __be16
2214 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2215 {
2216         struct qeth_card *card;
2217         struct ethhdr *eth;
2218
2219         QETH_DBF_TEXT(trace,6,"typtrans");
2220
2221         card = (struct qeth_card *)dev->priv;
2222 #ifdef CONFIG_TR
2223         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2224             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2225                 return tr_type_trans(skb,dev);
2226 #endif /* CONFIG_TR */
2227         skb->mac.raw = skb->data;
2228         skb_pull(skb, ETH_HLEN );
2229         eth = eth_hdr(skb);
2230
2231         if (*eth->h_dest & 1) {
2232                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2233                         skb->pkt_type = PACKET_BROADCAST;
2234                 else
2235                         skb->pkt_type = PACKET_MULTICAST;
2236         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2237                 skb->pkt_type = PACKET_OTHERHOST;
2238
2239         if (ntohs(eth->h_proto) >= 1536)
2240                 return eth->h_proto;
2241         if (*(unsigned short *) (skb->data) == 0xFFFF)
2242                 return htons(ETH_P_802_3);
2243         return htons(ETH_P_802_2);
2244 }
2245
2246 static inline void
2247 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2248                          struct qeth_hdr *hdr)
2249 {
2250         struct trh_hdr *fake_hdr;
2251         struct trllc *fake_llc;
2252         struct iphdr *ip_hdr;
2253
2254         QETH_DBF_TEXT(trace,5,"skbfktr");
2255         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2256         /* this is a fake ethernet header */
2257         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2258
2259         /* the destination MAC address */
2260         switch (skb->pkt_type){
2261         case PACKET_MULTICAST:
2262                 switch (skb->protocol){
2263 #ifdef CONFIG_QETH_IPV6
2264                 case __constant_htons(ETH_P_IPV6):
2265                         ndisc_mc_map((struct in6_addr *)
2266                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2267                                      fake_hdr->daddr, card->dev, 0);
2268                         break;
2269 #endif /* CONFIG_QETH_IPV6 */
2270                 case __constant_htons(ETH_P_IP):
2271                         ip_hdr = (struct iphdr *)skb->data;
2272                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2273                         break;
2274                 default:
2275                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2276                 }
2277                 break;
2278         case PACKET_BROADCAST:
2279                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2280                 break;
2281         default:
2282                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2283         }
2284         /* the source MAC address */
2285         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2286                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2287         else
2288                 memset(fake_hdr->saddr, 0, TR_ALEN);
2289         fake_hdr->rcf=0;
2290         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2291         fake_llc->dsap = EXTENDED_SAP;
2292         fake_llc->ssap = EXTENDED_SAP;
2293         fake_llc->llc  = UI_CMD;
2294         fake_llc->protid[0] = 0;
2295         fake_llc->protid[1] = 0;
2296         fake_llc->protid[2] = 0;
2297         fake_llc->ethertype = ETH_P_IP;
2298 }
2299
2300 static inline void
2301 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2302                          struct qeth_hdr *hdr)
2303 {
2304         struct ethhdr *fake_hdr;
2305         struct iphdr *ip_hdr;
2306
2307         QETH_DBF_TEXT(trace,5,"skbfketh");
2308         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2309         /* this is a fake ethernet header */
2310         fake_hdr = (struct ethhdr *) skb->mac.raw;
2311
2312         /* the destination MAC address */
2313         switch (skb->pkt_type){
2314         case PACKET_MULTICAST:
2315                 switch (skb->protocol){
2316 #ifdef CONFIG_QETH_IPV6
2317                 case __constant_htons(ETH_P_IPV6):
2318                         ndisc_mc_map((struct in6_addr *)
2319                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2320                                      fake_hdr->h_dest, card->dev, 0);
2321                         break;
2322 #endif /* CONFIG_QETH_IPV6 */
2323                 case __constant_htons(ETH_P_IP):
2324                         ip_hdr = (struct iphdr *)skb->data;
2325                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2326                         break;
2327                 default:
2328                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2329                 }
2330                 break;
2331         case PACKET_BROADCAST:
2332                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2333                 break;
2334         default:
2335                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2336         }
2337         /* the source MAC address */
2338         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2339                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2340         else
2341                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2342         /* the protocol */
2343         fake_hdr->h_proto = skb->protocol;
2344 }
2345
2346 static inline void
2347 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2348                         struct qeth_hdr *hdr)
2349 {
2350         if (card->dev->type == ARPHRD_IEEE802_TR)
2351                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2352         else
2353                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2354 }
2355
2356 static inline void
2357 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2358                       struct qeth_hdr *hdr)
2359 {
2360 #ifdef CONFIG_QETH_VLAN
2361         u16 *vlan_tag;
2362
2363         if (hdr->hdr.l3.ext_flags &
2364             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2365                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2366                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2367                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2368                 *(vlan_tag + 1) = skb->protocol;
2369                 skb->protocol = __constant_htons(ETH_P_8021Q);
2370         }
2371 #endif /* CONFIG_QETH_VLAN */
2372 }
2373
2374 static inline __u16
2375 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2376                         struct qeth_hdr *hdr)
2377 {
2378         unsigned short vlan_id = 0;
2379 #ifdef CONFIG_QETH_VLAN
2380         struct vlan_hdr *vhdr;
2381 #endif
2382
2383         skb->pkt_type = PACKET_HOST;
2384         skb->protocol = qeth_type_trans(skb, skb->dev);
2385         if (card->options.checksum_type == NO_CHECKSUMMING)
2386                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2387         else
2388                 skb->ip_summed = CHECKSUM_NONE;
2389 #ifdef CONFIG_QETH_VLAN
2390         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2391                 vhdr = (struct vlan_hdr *) skb->data;
2392                 skb->protocol =
2393                         __constant_htons(vhdr->h_vlan_encapsulated_proto);
2394                 vlan_id = hdr->hdr.l2.vlan_id;
2395                 skb_pull(skb, VLAN_HLEN);
2396         }
2397 #endif
2398         return vlan_id;
2399 }
2400
2401 static inline void
2402 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2403                  struct qeth_hdr *hdr)
2404 {
2405 #ifdef CONFIG_QETH_IPV6
2406         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2407                 skb->pkt_type = PACKET_HOST;
2408                 skb->protocol = qeth_type_trans(skb, card->dev);
2409                 return;
2410         }
2411 #endif /* CONFIG_QETH_IPV6 */
2412         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2413                               ETH_P_IP);
2414         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2415         case QETH_CAST_UNICAST:
2416                 skb->pkt_type = PACKET_HOST;
2417                 break;
2418         case QETH_CAST_MULTICAST:
2419                 skb->pkt_type = PACKET_MULTICAST;
2420                 card->stats.multicast++;
2421                 break;
2422         case QETH_CAST_BROADCAST:
2423                 skb->pkt_type = PACKET_BROADCAST;
2424                 card->stats.multicast++;
2425                 break;
2426         case QETH_CAST_ANYCAST:
2427         case QETH_CAST_NOCAST:
2428         default:
2429                 skb->pkt_type = PACKET_HOST;
2430         }
2431         qeth_rebuild_skb_vlan(card, skb, hdr);
2432         if (card->options.fake_ll)
2433                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2434         else
2435                 skb->mac.raw = skb->data;
2436         skb->ip_summed = card->options.checksum_type;
2437         if (card->options.checksum_type == HW_CHECKSUMMING){
2438                 if ( (hdr->hdr.l3.ext_flags &
2439                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2440                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2441                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2442                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2443                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2444                 else
2445                         skb->ip_summed = SW_CHECKSUMMING;
2446         }
2447 }
2448
2449 static inline void
2450 qeth_process_inbound_buffer(struct qeth_card *card,
2451                             struct qeth_qdio_buffer *buf, int index)
2452 {
2453         struct qdio_buffer_element *element;
2454         struct sk_buff *skb;
2455         struct qeth_hdr *hdr;
2456         int offset;
2457         int rxrc;
2458         __u16 vlan_tag = 0;
2459
2460         /* get first element of current buffer */
2461         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2462         offset = 0;
2463 #ifdef CONFIG_QETH_PERF_STATS
2464         card->perf_stats.bufs_rec++;
2465 #endif
2466         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2467                                        &offset, &hdr))) {
2468                 skb->dev = card->dev;
2469                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2470                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2471                 else
2472                         qeth_rebuild_skb(card, skb, hdr);
2473                 /* is device UP ? */
2474                 if (!(card->dev->flags & IFF_UP)){
2475                         dev_kfree_skb_any(skb);
2476                         continue;
2477                 }
2478 #ifdef CONFIG_QETH_VLAN
2479                 if (vlan_tag)
2480                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2481                 else
2482 #endif
2483                 rxrc = netif_rx(skb);
2484                 card->dev->last_rx = jiffies;
2485                 card->stats.rx_packets++;
2486                 card->stats.rx_bytes += skb->len;
2487         }
2488 }
2489
2490 static inline struct qeth_buffer_pool_entry *
2491 qeth_get_buffer_pool_entry(struct qeth_card *card)
2492 {
2493         struct qeth_buffer_pool_entry *entry;
2494
2495         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2496         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2497                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2498                                 struct qeth_buffer_pool_entry, list);
2499                 list_del_init(&entry->list);
2500                 return entry;
2501         }
2502         return NULL;
2503 }
2504
2505 static inline void
2506 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2507 {
2508         struct qeth_buffer_pool_entry *pool_entry;
2509         int i;
2510
2511         pool_entry = qeth_get_buffer_pool_entry(card);
2512         /*
2513          * since the buffer is accessed only from the input_tasklet
2514          * there shouldn't be a need to synchronize; also, since we use
2515          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2516          * buffers
2517          */
2518         BUG_ON(!pool_entry);
2519
2520         buf->pool_entry = pool_entry;
2521         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2522                 buf->buffer->element[i].length = PAGE_SIZE;
2523                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2524                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2525                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2526                 else
2527                         buf->buffer->element[i].flags = 0;
2528         }
2529         buf->state = QETH_QDIO_BUF_EMPTY;
2530 }
2531
2532 static inline void
2533 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2534                          struct qeth_qdio_out_buffer *buf)
2535 {
2536         int i;
2537         struct sk_buff *skb;
2538
2539         /* is PCI flag set on buffer? */
2540         if (buf->buffer->element[0].flags & 0x40)
2541                 atomic_dec(&queue->set_pci_flags_count);
2542
2543         while ((skb = skb_dequeue(&buf->skb_list))){
2544                 atomic_dec(&skb->users);
2545                 dev_kfree_skb_any(skb);
2546         }
2547         qeth_eddp_buf_release_contexts(buf);
2548         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2549                 buf->buffer->element[i].length = 0;
2550                 buf->buffer->element[i].addr = NULL;
2551                 buf->buffer->element[i].flags = 0;
2552         }
2553         buf->next_element_to_fill = 0;
2554         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2555 }
2556
2557 static inline void
2558 qeth_queue_input_buffer(struct qeth_card *card, int index)
2559 {
2560         struct qeth_qdio_q *queue = card->qdio.in_q;
2561         int count;
2562         int i;
2563         int rc;
2564
2565         QETH_DBF_TEXT(trace,6,"queinbuf");
2566         count = (index < queue->next_buf_to_init)?
2567                 card->qdio.in_buf_pool.buf_count -
2568                 (queue->next_buf_to_init - index) :
2569                 card->qdio.in_buf_pool.buf_count -
2570                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2571         /* only requeue at a certain threshold to avoid SIGAs */
2572         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2573                 for (i = queue->next_buf_to_init;
2574                      i < queue->next_buf_to_init + count; ++i)
2575                         qeth_init_input_buffer(card,
2576                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2577                 /*
2578                  * according to old code it should be avoided to requeue all
2579                  * 128 buffers in order to benefit from PCI avoidance.
2580                  * this function keeps at least one buffer (the buffer at
2581                  * 'index') un-requeued -> this buffer is the first buffer that
2582                  * will be requeued the next time
2583                  */
2584 #ifdef CONFIG_QETH_PERF_STATS
2585                 card->perf_stats.inbound_do_qdio_cnt++;
2586                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2587 #endif
2588                 rc = do_QDIO(CARD_DDEV(card),
2589                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2590                              0, queue->next_buf_to_init, count, NULL);
2591 #ifdef CONFIG_QETH_PERF_STATS
2592                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2593                         card->perf_stats.inbound_do_qdio_start_time;
2594 #endif
2595                 if (rc){
2596                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2597                                    "return %i (device %s).\n",
2598                                    rc, CARD_DDEV_ID(card));
2599                         QETH_DBF_TEXT(trace,2,"qinberr");
2600                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2601                 }
2602                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2603                                           QDIO_MAX_BUFFERS_PER_Q;
2604         }
2605 }
2606
2607 static inline void
2608 qeth_put_buffer_pool_entry(struct qeth_card *card,
2609                            struct qeth_buffer_pool_entry *entry)
2610 {
2611         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2612         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2613 }
2614
2615 static void
2616 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2617                         unsigned int qdio_err, unsigned int siga_err,
2618                         unsigned int queue, int first_element, int count,
2619                         unsigned long card_ptr)
2620 {
2621         struct net_device *net_dev;
2622         struct qeth_card *card;
2623         struct qeth_qdio_buffer *buffer;
2624         int index;
2625         int i;
2626
2627         QETH_DBF_TEXT(trace, 6, "qdinput");
2628         card = (struct qeth_card *) card_ptr;
2629         net_dev = card->dev;
2630 #ifdef CONFIG_QETH_PERF_STATS
2631         card->perf_stats.inbound_cnt++;
2632         card->perf_stats.inbound_start_time = qeth_get_micros();
2633 #endif
2634         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2635                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2636                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2637                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2638                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2639                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2640                         qeth_schedule_recovery(card);
2641                         return;
2642                 }
2643         }
2644         for (i = first_element; i < (first_element + count); ++i) {
2645                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2646                 buffer = &card->qdio.in_q->bufs[index];
2647                 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2648                       qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2649                         qeth_process_inbound_buffer(card, buffer, index);
2650                 /* clear buffer and give back to hardware */
2651                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2652                 qeth_queue_input_buffer(card, index);
2653         }
2654 #ifdef CONFIG_QETH_PERF_STATS
2655         card->perf_stats.inbound_time += qeth_get_micros() -
2656                 card->perf_stats.inbound_start_time;
2657 #endif
2658 }
2659
2660 static inline int
2661 qeth_handle_send_error(struct qeth_card *card,
2662                        struct qeth_qdio_out_buffer *buffer,
2663                        int qdio_err, int siga_err)
2664 {
2665         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2666         int cc = siga_err & 3;
2667
2668         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2669         switch (cc) {
2670         case 0:
2671                 if (qdio_err){
2672                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2673                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2674                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2675                                        (u16)qdio_err, (u8)sbalf15);
2676                         return QETH_SEND_ERROR_LINK_FAILURE;
2677                 }
2678                 return QETH_SEND_ERROR_NONE;
2679         case 2:
2680                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2681                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2682                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2683                         return QETH_SEND_ERROR_KICK_IT;
2684                 }
2685                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2686                         return QETH_SEND_ERROR_RETRY;
2687                 return QETH_SEND_ERROR_LINK_FAILURE;
2688                 /* look at qdio_error and sbalf 15 */
2689         case 1:
2690                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2691                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2692                 return QETH_SEND_ERROR_LINK_FAILURE;
2693         case 3:
2694                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2695                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2696                 return QETH_SEND_ERROR_KICK_IT;
2697         }
2698         return QETH_SEND_ERROR_LINK_FAILURE;
2699 }
2700
2701 void
2702 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2703                    int index, int count)
2704 {
2705         struct qeth_qdio_out_buffer *buf;
2706         int rc;
2707         int i;
2708
2709         QETH_DBF_TEXT(trace, 6, "flushbuf");
2710
2711         for (i = index; i < index + count; ++i) {
2712                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2713                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2714                                 SBAL_FLAGS_LAST_ENTRY;
2715
2716                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2717                         continue;
2718
2719                 if (!queue->do_pack){
2720                         if ((atomic_read(&queue->used_buffers) >=
2721                                 (QETH_HIGH_WATERMARK_PACK -
2722                                  QETH_WATERMARK_PACK_FUZZ)) &&
2723                             !atomic_read(&queue->set_pci_flags_count)){
2724                                 /* it's likely that we'll go to packing
2725                                  * mode soon */
2726                                 atomic_inc(&queue->set_pci_flags_count);
2727                                 buf->buffer->element[0].flags |= 0x40;
2728                         }
2729                 } else {
2730                         if (!atomic_read(&queue->set_pci_flags_count)){
2731                                 /*
2732                                  * there's no outstanding PCI any more, so we
2733                                  * have to request a PCI to be sure the the PCI
2734                                  * will wake at some time in the future then we
2735                                  * can flush packed buffers that might still be
2736                                  * hanging around, which can happen if no
2737                                  * further send was requested by the stack
2738                                  */
2739                                 atomic_inc(&queue->set_pci_flags_count);
2740                                 buf->buffer->element[0].flags |= 0x40;
2741                         }
2742                 }
2743         }
2744
2745         queue->card->dev->trans_start = jiffies;
2746 #ifdef CONFIG_QETH_PERF_STATS
2747         queue->card->perf_stats.outbound_do_qdio_cnt++;
2748         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2749 #endif
2750         if (under_int)
2751                 rc = do_QDIO(CARD_DDEV(queue->card),
2752                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2753                              queue->queue_no, index, count, NULL);
2754         else
2755                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2756                              queue->queue_no, index, count, NULL);
2757 #ifdef CONFIG_QETH_PERF_STATS
2758         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2759                 queue->card->perf_stats.outbound_do_qdio_start_time;
2760 #endif
2761         if (rc){
2762                 QETH_DBF_SPRINTF(trace, 0, "qeth_flush_buffers: do_QDIO "
2763                                  "returned error (%i) on device %s.",
2764                                  rc, CARD_DDEV_ID(queue->card));
2765                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2766                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2767                 queue->card->stats.tx_errors += count;
2768                 /* this must not happen under normal circumstances. if it
2769                  * happens something is really wrong -> recover */
2770                 qeth_schedule_recovery(queue->card);
2771                 return;
2772         }
2773         atomic_add(count, &queue->used_buffers);
2774 #ifdef CONFIG_QETH_PERF_STATS
2775         queue->card->perf_stats.bufs_sent += count;
2776 #endif
2777 }
2778
2779 /*
2780  * Switched to packing state if the number of used buffers on a queue
2781  * reaches a certain limit.
2782  */
2783 static inline void
2784 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2785 {
2786         if (!queue->do_pack) {
2787                 if (atomic_read(&queue->used_buffers)
2788                     >= QETH_HIGH_WATERMARK_PACK){
2789                         /* switch non-PACKING -> PACKING */
2790                         QETH_DBF_TEXT(trace, 6, "np->pack");
2791 #ifdef CONFIG_QETH_PERF_STATS
2792                         queue->card->perf_stats.sc_dp_p++;
2793 #endif
2794                         queue->do_pack = 1;
2795                 }
2796         }
2797 }
2798
2799 /*
2800  * Switches from packing to non-packing mode. If there is a packing
2801  * buffer on the queue this buffer will be prepared to be flushed.
2802  * In that case 1 is returned to inform the caller. If no buffer
2803  * has to be flushed, zero is returned.
2804  */
2805 static inline int
2806 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2807 {
2808         struct qeth_qdio_out_buffer *buffer;
2809         int flush_count = 0;
2810
2811         if (queue->do_pack) {
2812                 if (atomic_read(&queue->used_buffers)
2813                     <= QETH_LOW_WATERMARK_PACK) {
2814                         /* switch PACKING -> non-PACKING */
2815                         QETH_DBF_TEXT(trace, 6, "pack->np");
2816 #ifdef CONFIG_QETH_PERF_STATS
2817                         queue->card->perf_stats.sc_p_dp++;
2818 #endif
2819                         queue->do_pack = 0;
2820                         /* flush packing buffers */
2821                         buffer = &queue->bufs[queue->next_buf_to_fill];
2822                         if ((atomic_read(&buffer->state) ==
2823                                                 QETH_QDIO_BUF_EMPTY) &&
2824                             (buffer->next_element_to_fill > 0)) {
2825                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2826                                 flush_count++;
2827                                 queue->next_buf_to_fill =
2828                                         (queue->next_buf_to_fill + 1) %
2829                                         QDIO_MAX_BUFFERS_PER_Q;
2830                         }
2831                 }
2832         }
2833         return flush_count;
2834 }
2835
2836 /*
2837  * Called to flush a packing buffer if no more pci flags are on the queue.
2838  * Checks if there is a packing buffer and prepares it to be flushed.
2839  * In that case returns 1, otherwise zero.
2840  */
2841 static inline int
2842 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2843 {
2844         struct qeth_qdio_out_buffer *buffer;
2845
2846         buffer = &queue->bufs[queue->next_buf_to_fill];
2847         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2848            (buffer->next_element_to_fill > 0)){
2849                 /* it's a packing buffer */
2850                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2851                 queue->next_buf_to_fill =
2852                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2853                 return 1;
2854         }
2855         return 0;
2856 }
2857
2858 static inline void
2859 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2860 {
2861         int index;
2862         int flush_cnt = 0;
2863         int q_was_packing = 0;
2864
2865         /*
2866          * check if weed have to switch to non-packing mode or if
2867          * we have to get a pci flag out on the queue
2868          */
2869         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2870             !atomic_read(&queue->set_pci_flags_count)){
2871                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2872                                 QETH_OUT_Q_UNLOCKED) {
2873                         /*
2874                          * If we get in here, there was no action in
2875                          * do_send_packet. So, we check if there is a
2876                          * packing buffer to be flushed here.
2877                          */
2878                         netif_stop_queue(queue->card->dev);
2879                         index = queue->next_buf_to_fill;
2880                         q_was_packing = queue->do_pack;
2881                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2882                         if (!flush_cnt &&
2883                             !atomic_read(&queue->set_pci_flags_count))
2884                                 flush_cnt +=
2885                                         qeth_flush_buffers_on_no_pci(queue);
2886 #ifdef CONFIG_QETH_PERF_STATS
2887                         if (q_was_packing)
2888                                 queue->card->perf_stats.bufs_sent_pack +=
2889                                         flush_cnt;
2890 #endif
2891                         if (flush_cnt)
2892                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2893                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2894                 }
2895         }
2896 }
2897
2898 static void
2899 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2900                         unsigned int qdio_error, unsigned int siga_error,
2901                         unsigned int __queue, int first_element, int count,
2902                         unsigned long card_ptr)
2903 {
2904         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2905         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2906         struct qeth_qdio_out_buffer *buffer;
2907         int i;
2908
2909         QETH_DBF_TEXT(trace, 6, "qdouhdl");
2910         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2911                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2912                         QETH_DBF_SPRINTF(trace, 2, "On device %s: "
2913                                          "received active check "
2914                                          "condition (0x%08x).",
2915                                          CARD_BUS_ID(card), status);
2916                         QETH_DBF_TEXT(trace, 2, "chkcond");
2917                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
2918                         netif_stop_queue(card->dev);
2919                         qeth_schedule_recovery(card);
2920                         return;
2921                 }
2922         }
2923 #ifdef CONFIG_QETH_PERF_STATS
2924         card->perf_stats.outbound_handler_cnt++;
2925         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
2926 #endif
2927         for(i = first_element; i < (first_element + count); ++i){
2928                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2929                 /*we only handle the KICK_IT error by doing a recovery */
2930                 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
2931                                 == QETH_SEND_ERROR_KICK_IT){
2932                         netif_stop_queue(card->dev);
2933                         qeth_schedule_recovery(card);
2934                         return;
2935                 }
2936                 qeth_clear_output_buffer(queue, buffer);
2937         }
2938         atomic_sub(count, &queue->used_buffers);
2939         /* check if we need to do something on this outbound queue */
2940         if (card->info.type != QETH_CARD_TYPE_IQD)
2941                 qeth_check_outbound_queue(queue);
2942
2943         netif_wake_queue(queue->card->dev);
2944 #ifdef CONFIG_QETH_PERF_STATS
2945         card->perf_stats.outbound_handler_time += qeth_get_micros() -
2946                 card->perf_stats.outbound_handler_start_time;
2947 #endif
2948 }
2949
2950 static void
2951 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
2952 {
2953
2954         param_field[0] = _ascebc['P'];
2955         param_field[1] = _ascebc['C'];
2956         param_field[2] = _ascebc['I'];
2957         param_field[3] = _ascebc['T'];
2958         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2959         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2960         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2961 }
2962
2963 static void
2964 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
2965 {
2966         param_field[16] = _ascebc['B'];
2967         param_field[17] = _ascebc['L'];
2968         param_field[18] = _ascebc['K'];
2969         param_field[19] = _ascebc['T'];
2970         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
2971         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
2972         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
2973 }
2974
2975 static void
2976 qeth_initialize_working_pool_list(struct qeth_card *card)
2977 {
2978         struct qeth_buffer_pool_entry *entry;
2979
2980         QETH_DBF_TEXT(trace,5,"inwrklst");
2981
2982         list_for_each_entry(entry,
2983                             &card->qdio.init_pool.entry_list, init_list) {
2984                 qeth_put_buffer_pool_entry(card,entry);
2985         }
2986 }
2987
2988 static void
2989 qeth_clear_working_pool_list(struct qeth_card *card)
2990 {
2991         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2992
2993         QETH_DBF_TEXT(trace,5,"clwrklst");
2994         list_for_each_entry_safe(pool_entry, tmp,
2995                             &card->qdio.in_buf_pool.entry_list, list){
2996                         list_del(&pool_entry->list);
2997         }
2998 }
2999
3000 static void
3001 qeth_free_buffer_pool(struct qeth_card *card)
3002 {
3003         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3004         int i=0;
3005         QETH_DBF_TEXT(trace,5,"freepool");
3006         list_for_each_entry_safe(pool_entry, tmp,
3007                                  &card->qdio.init_pool.entry_list, init_list){
3008                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3009                         free_page((unsigned long)pool_entry->elements[i]);
3010                 list_del(&pool_entry->init_list);
3011                 kfree(pool_entry);
3012         }
3013 }
3014
3015 static int
3016 qeth_alloc_buffer_pool(struct qeth_card *card)
3017 {
3018         struct qeth_buffer_pool_entry *pool_entry;
3019         void *ptr;
3020         int i, j;
3021
3022         QETH_DBF_TEXT(trace,5,"alocpool");
3023         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3024                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3025                 if (!pool_entry){
3026                         qeth_free_buffer_pool(card);
3027                         return -ENOMEM;
3028                 }
3029                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3030                         ptr = (void *) __get_free_page(GFP_KERNEL);
3031                         if (!ptr) {
3032                                 while (j > 0)
3033                                         free_page((unsigned long)
3034                                                   pool_entry->elements[--j]);
3035                                 kfree(pool_entry);
3036                                 qeth_free_buffer_pool(card);
3037                                 return -ENOMEM;
3038                         }
3039                         pool_entry->elements[j] = ptr;
3040                 }
3041                 list_add(&pool_entry->init_list,
3042                          &card->qdio.init_pool.entry_list);
3043         }
3044         return 0;
3045 }
3046
3047 int
3048 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3049 {
3050         QETH_DBF_TEXT(trace, 2, "realcbp");
3051
3052         if ((card->state != CARD_STATE_DOWN) &&
3053             (card->state != CARD_STATE_RECOVER))
3054                 return -EPERM;
3055
3056         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3057         qeth_clear_working_pool_list(card);
3058         qeth_free_buffer_pool(card);
3059         card->qdio.in_buf_pool.buf_count = bufcnt;
3060         card->qdio.init_pool.buf_count = bufcnt;
3061         return qeth_alloc_buffer_pool(card);
3062 }
3063
3064 static int
3065 qeth_alloc_qdio_buffers(struct qeth_card *card)
3066 {
3067         int i, j;
3068
3069         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3070
3071         if (card->qdio.state == QETH_QDIO_ALLOCATED)
3072                 return 0;
3073
3074         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL);
3075         if (!card->qdio.in_q)
3076                 return - ENOMEM;
3077         QETH_DBF_TEXT(setup, 2, "inq");
3078         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3079         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3080         /* give inbound qeth_qdio_buffers their qdio_buffers */
3081         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3082                 card->qdio.in_q->bufs[i].buffer =
3083                         &card->qdio.in_q->qdio_bufs[i];
3084         /* inbound buffer pool */
3085         if (qeth_alloc_buffer_pool(card)){
3086                 kfree(card->qdio.in_q);
3087                 return -ENOMEM;
3088         }
3089         /* outbound */
3090         card->qdio.out_qs =
3091                 kmalloc(card->qdio.no_out_queues *
3092                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3093         if (!card->qdio.out_qs){
3094                 qeth_free_buffer_pool(card);
3095                 return -ENOMEM;
3096         }
3097         for (i = 0; i < card->qdio.no_out_queues; ++i){
3098                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3099                                                GFP_KERNEL);
3100                 if (!card->qdio.out_qs[i]){
3101                         while (i > 0)
3102                                 kfree(card->qdio.out_qs[--i]);
3103                         kfree(card->qdio.out_qs);
3104                         return -ENOMEM;
3105                 }
3106                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3107                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3108                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3109                 card->qdio.out_qs[i]->queue_no = i;
3110                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3111                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3112                         card->qdio.out_qs[i]->bufs[j].buffer =
3113                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3114                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3115                                             skb_list);
3116                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3117                 }
3118         }
3119         card->qdio.state = QETH_QDIO_ALLOCATED;
3120         return 0;
3121 }
3122
3123 static void
3124 qeth_free_qdio_buffers(struct qeth_card *card)
3125 {
3126         int i, j;
3127
3128         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3129         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3130                 return;
3131         kfree(card->qdio.in_q);
3132         /* inbound buffer pool */
3133         qeth_free_buffer_pool(card);
3134         /* free outbound qdio_qs */
3135         for (i = 0; i < card->qdio.no_out_queues; ++i){
3136                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3137                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3138                                         &card->qdio.out_qs[i]->bufs[j]);
3139                 kfree(card->qdio.out_qs[i]);
3140         }
3141         kfree(card->qdio.out_qs);
3142         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3143 }
3144
3145 static void
3146 qeth_clear_qdio_buffers(struct qeth_card *card)
3147 {
3148         int i, j;
3149
3150         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3151         /* clear outbound buffers to free skbs */
3152         for (i = 0; i < card->qdio.no_out_queues; ++i)
3153                 if (card->qdio.out_qs[i]){
3154                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3155                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3156                                                 &card->qdio.out_qs[i]->bufs[j]);
3157                 }
3158 }
3159
3160 static void
3161 qeth_init_qdio_info(struct qeth_card *card)
3162 {
3163         QETH_DBF_TEXT(setup, 4, "intqdinf");
3164         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3165         /* inbound */
3166         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3167         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3168         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3169         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3170         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3171         /* outbound */
3172         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
3173         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
3174 }
3175
3176 static int
3177 qeth_init_qdio_queues(struct qeth_card *card)
3178 {
3179         int i, j;
3180         int rc;
3181
3182         QETH_DBF_TEXT(setup, 2, "initqdqs");
3183
3184         /* inbound queue */
3185         memset(card->qdio.in_q->qdio_bufs, 0,
3186                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3187         qeth_initialize_working_pool_list(card);
3188         /*give only as many buffers to hardware as we have buffer pool entries*/
3189         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3190                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3191         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3192         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3193                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3194         if (rc) {
3195                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3196                 return rc;
3197         }
3198         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3199         if (rc) {
3200                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3201                 return rc;
3202         }
3203         /* outbound queue */
3204         for (i = 0; i < card->qdio.no_out_queues; ++i){
3205                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3206                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3207                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3208                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3209                                         &card->qdio.out_qs[i]->bufs[j]);
3210                 }
3211                 card->qdio.out_qs[i]->card = card;
3212                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3213                 card->qdio.out_qs[i]->do_pack = 0;
3214                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3215                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3216                 atomic_set(&card->qdio.out_qs[i]->state,
3217                            QETH_OUT_Q_UNLOCKED);
3218         }
3219         return 0;
3220 }
3221
3222 static int
3223 qeth_qdio_establish(struct qeth_card *card)
3224 {
3225         struct qdio_initialize init_data;
3226         char *qib_param_field;
3227         struct qdio_buffer **in_sbal_ptrs;
3228         struct qdio_buffer **out_sbal_ptrs;
3229         int i, j, k;
3230         int rc;
3231
3232         QETH_DBF_TEXT(setup, 2, "qdioest");
3233
3234         qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3235                               GFP_KERNEL);
3236         if (!qib_param_field)
3237                 return -ENOMEM;
3238
3239         memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3240
3241         qeth_create_qib_param_field(card, qib_param_field);
3242         qeth_create_qib_param_field_blkt(card, qib_param_field);
3243
3244         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3245                                GFP_KERNEL);
3246         if (!in_sbal_ptrs) {
3247                 kfree(qib_param_field);
3248                 return -ENOMEM;
3249         }
3250         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3251                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3252                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3253
3254         out_sbal_ptrs =
3255                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3256                         sizeof(void *), GFP_KERNEL);
3257         if (!out_sbal_ptrs) {
3258                 kfree(in_sbal_ptrs);
3259                 kfree(qib_param_field);
3260                 return -ENOMEM;
3261         }
3262         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3263                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3264                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3265                                 virt_to_phys(card->qdio.out_qs[i]->
3266                                              bufs[j].buffer);
3267                 }
3268
3269         memset(&init_data, 0, sizeof(struct qdio_initialize));
3270         init_data.cdev                   = CARD_DDEV(card);
3271         init_data.q_format               = qeth_get_qdio_q_format(card);
3272         init_data.qib_param_field_format = 0;
3273         init_data.qib_param_field        = qib_param_field;
3274         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3275         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3276         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3277         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3278         init_data.no_input_qs            = 1;
3279         init_data.no_output_qs           = card->qdio.no_out_queues;
3280         init_data.input_handler          = (qdio_handler_t *)
3281                                            qeth_qdio_input_handler;
3282         init_data.output_handler         = (qdio_handler_t *)
3283                                            qeth_qdio_output_handler;
3284         init_data.int_parm               = (unsigned long) card;
3285         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3286                                            QDIO_OUTBOUND_0COPY_SBALS |
3287                                            QDIO_USE_OUTBOUND_PCIS;
3288         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3289         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3290
3291         if (!(rc = qdio_initialize(&init_data)))
3292                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3293
3294         kfree(out_sbal_ptrs);
3295         kfree(in_sbal_ptrs);
3296         kfree(qib_param_field);
3297         return rc;
3298 }
3299
3300 static int
3301 qeth_qdio_activate(struct qeth_card *card)
3302 {
3303         QETH_DBF_TEXT(setup,3,"qdioact");
3304         return qdio_activate(CARD_DDEV(card), 0);
3305 }
3306
3307 static int
3308 qeth_clear_channel(struct qeth_channel *channel)
3309 {
3310         unsigned long flags;
3311         struct qeth_card *card;
3312         int rc;
3313
3314         QETH_DBF_TEXT(trace,3,"clearch");
3315         card = CARD_FROM_CDEV(channel->ccwdev);
3316         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3317         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3318         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3319
3320         if (rc)
3321                 return rc;
3322         rc = wait_event_interruptible_timeout(card->wait_q,
3323                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3324         if (rc == -ERESTARTSYS)
3325                 return rc;
3326         if (channel->state != CH_STATE_STOPPED)
3327                 return -ETIME;
3328         channel->state = CH_STATE_DOWN;
3329         return 0;
3330 }
3331
3332 static int
3333 qeth_halt_channel(struct qeth_channel *channel)
3334 {
3335         unsigned long flags;
3336         struct qeth_card *card;
3337         int rc;
3338
3339         QETH_DBF_TEXT(trace,3,"haltch");
3340         card = CARD_FROM_CDEV(channel->ccwdev);
3341         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3342         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3343         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3344
3345         if (rc)
3346                 return rc;
3347         rc = wait_event_interruptible_timeout(card->wait_q,
3348                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3349         if (rc == -ERESTARTSYS)
3350                 return rc;
3351         if (channel->state != CH_STATE_HALTED)
3352                 return -ETIME;
3353         return 0;
3354 }
3355
3356 static int
3357 qeth_halt_channels(struct qeth_card *card)
3358 {
3359         int rc = 0;
3360
3361         QETH_DBF_TEXT(trace,3,"haltchs");
3362         if ((rc = qeth_halt_channel(&card->read)))
3363                 return rc;
3364         if ((rc = qeth_halt_channel(&card->write)))
3365                 return rc;
3366         return  qeth_halt_channel(&card->data);
3367 }
3368 static int
3369 qeth_clear_channels(struct qeth_card *card)
3370 {
3371         int rc = 0;
3372
3373         QETH_DBF_TEXT(trace,3,"clearchs");
3374         if ((rc = qeth_clear_channel(&card->read)))
3375                 return rc;
3376         if ((rc = qeth_clear_channel(&card->write)))
3377                 return rc;
3378         return  qeth_clear_channel(&card->data);
3379 }
3380
3381 static int
3382 qeth_clear_halt_card(struct qeth_card *card, int halt)
3383 {
3384         int rc = 0;
3385
3386         QETH_DBF_TEXT(trace,3,"clhacrd");
3387         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3388
3389         if (halt)
3390                 rc = qeth_halt_channels(card);
3391         if (rc)
3392                 return rc;
3393         return qeth_clear_channels(card);
3394 }
3395
3396 static int
3397 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3398 {
3399         int rc = 0;
3400
3401         QETH_DBF_TEXT(trace,3,"qdioclr");
3402         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3403                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3404                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3405                              QDIO_FLAG_CLEANUP_USING_HALT :
3406                              QDIO_FLAG_CLEANUP_USING_CLEAR)))
3407                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3408                 card->qdio.state = QETH_QDIO_ALLOCATED;
3409         }
3410         if ((rc = qeth_clear_halt_card(card, use_halt)))
3411                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3412         card->state = CARD_STATE_DOWN;
3413         return rc;
3414 }
3415
3416 static int
3417 qeth_dm_act(struct qeth_card *card)
3418 {
3419         int rc;
3420         struct qeth_cmd_buffer *iob;
3421
3422         QETH_DBF_TEXT(setup,2,"dmact");
3423
3424         iob = qeth_wait_for_buffer(&card->write);
3425         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3426
3427         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3428                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3429         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3430                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3431         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3432         return rc;
3433 }
3434
3435 static int
3436 qeth_mpc_initialize(struct qeth_card *card)
3437 {
3438         int rc;
3439
3440         QETH_DBF_TEXT(setup,2,"mpcinit");
3441
3442         if ((rc = qeth_issue_next_read(card))){
3443                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3444                 return rc;
3445         }
3446         if ((rc = qeth_cm_enable(card))){
3447                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3448                 return rc;
3449         }
3450         if ((rc = qeth_cm_setup(card))){
3451                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3452                 return rc;
3453         }
3454         if ((rc = qeth_ulp_enable(card))){
3455                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3456                 return rc;
3457         }
3458         if ((rc = qeth_ulp_setup(card))){
3459                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3460                 return rc;
3461         }
3462         if ((rc = qeth_alloc_qdio_buffers(card))){
3463                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3464                 return rc;
3465         }
3466         if ((rc = qeth_qdio_establish(card))){
3467                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3468                 qeth_free_qdio_buffers(card);
3469                 goto out_qdio;
3470         }
3471         if ((rc = qeth_qdio_activate(card))){
3472                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3473                 goto out_qdio;
3474         }
3475         if ((rc = qeth_dm_act(card))){
3476                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3477                 goto out_qdio;
3478         }
3479
3480         return 0;
3481 out_qdio:
3482         qeth_qdio_clear_card(card, card->info.type==QETH_CARD_TYPE_OSAE);
3483         return rc;
3484 }
3485
3486 static struct net_device *
3487 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3488 {
3489         struct net_device *dev = NULL;
3490
3491         switch (type) {
3492         case QETH_CARD_TYPE_OSAE:
3493                 switch (linktype) {
3494                 case QETH_LINK_TYPE_LANE_TR:
3495                 case QETH_LINK_TYPE_HSTR:
3496 #ifdef CONFIG_TR
3497                         dev = alloc_trdev(0);
3498 #endif /* CONFIG_TR */
3499                         break;
3500                 default:
3501                         dev = alloc_etherdev(0);
3502                 }
3503                 break;
3504         case QETH_CARD_TYPE_IQD:
3505                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3506                 break;
3507         default:
3508                 dev = alloc_etherdev(0);
3509         }
3510         return dev;
3511 }
3512
3513 /*hard_header fake function; used in case fake_ll is set */
3514 static int
3515 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3516                      unsigned short type, void *daddr, void *saddr,
3517                      unsigned len)
3518 {
3519         if(dev->type == ARPHRD_IEEE802_TR){
3520                 struct trh_hdr *hdr;
3521                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3522                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3523                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3524                 return QETH_FAKE_LL_LEN_TR;
3525
3526         } else {
3527                 struct ethhdr *hdr;
3528                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3529                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3530                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3531                 if (type != ETH_P_802_3)
3532                         hdr->h_proto = htons(type);
3533                 else
3534                         hdr->h_proto = htons(len);
3535                 return QETH_FAKE_LL_LEN_ETH;
3536
3537         }
3538 }
3539
3540 static inline int
3541 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3542
3543 static int
3544 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3545 {
3546         int rc;
3547         struct qeth_card *card;
3548
3549         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3550         card = (struct qeth_card *)dev->priv;
3551         if (skb==NULL) {
3552                 card->stats.tx_dropped++;
3553                 card->stats.tx_errors++;
3554                 /* return OK; otherwise ksoftirqd goes to 100% */
3555                 return NETDEV_TX_OK;
3556         }
3557         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3558                 card->stats.tx_dropped++;
3559                 card->stats.tx_errors++;
3560                 card->stats.tx_carrier_errors++;
3561                 dev_kfree_skb_any(skb);
3562                 /* return OK; otherwise ksoftirqd goes to 100% */
3563                 return NETDEV_TX_OK;
3564         }
3565 #ifdef CONFIG_QETH_PERF_STATS
3566         card->perf_stats.outbound_cnt++;
3567         card->perf_stats.outbound_start_time = qeth_get_micros();
3568 #endif
3569         netif_stop_queue(dev);
3570         if ((rc = qeth_send_packet(card, skb))) {
3571                 if (rc == -EBUSY) {
3572                         return NETDEV_TX_BUSY;
3573                 } else {
3574                         card->stats.tx_errors++;
3575                         card->stats.tx_dropped++;
3576                         dev_kfree_skb_any(skb);
3577                         /*set to OK; otherwise ksoftirqd goes to 100% */
3578                         rc = NETDEV_TX_OK;
3579                 }
3580         }
3581         netif_wake_queue(dev);
3582 #ifdef CONFIG_QETH_PERF_STATS
3583         card->perf_stats.outbound_time += qeth_get_micros() -
3584                 card->perf_stats.outbound_start_time;
3585 #endif
3586         return rc;
3587 }
3588
3589 static int
3590 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3591 {
3592         int rc = 0;
3593 #ifdef CONFIG_QETH_VLAN
3594         struct vlan_group *vg;
3595         int i;
3596
3597         if (!(vg = card->vlangrp))
3598                 return rc;
3599
3600         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3601                 if (vg->vlan_devices[i] == dev){
3602                         rc = QETH_VLAN_CARD;
3603                         break;
3604                 }
3605         }
3606 #endif
3607         return rc;
3608 }
3609
3610 static int
3611 qeth_verify_dev(struct net_device *dev)
3612 {
3613         struct qeth_card *card;
3614         unsigned long flags;
3615         int rc = 0;
3616
3617         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3618         list_for_each_entry(card, &qeth_card_list.list, list){
3619                 if (card->dev == dev){
3620                         rc = QETH_REAL_CARD;
3621                         break;
3622                 }
3623                 rc = qeth_verify_vlan_dev(dev, card);
3624                 if (rc)
3625                         break;
3626         }
3627         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3628
3629         return rc;
3630 }
3631
3632 static struct qeth_card *
3633 qeth_get_card_from_dev(struct net_device *dev)
3634 {
3635         struct qeth_card *card = NULL;
3636         int rc;
3637
3638         rc = qeth_verify_dev(dev);
3639         if (rc == QETH_REAL_CARD)
3640                 card = (struct qeth_card *)dev->priv;
3641         else if (rc == QETH_VLAN_CARD)
3642                 card = (struct qeth_card *)
3643                         VLAN_DEV_INFO(dev)->real_dev->priv;
3644
3645         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3646         return card ;
3647 }
3648
3649 static void
3650 qeth_tx_timeout(struct net_device *dev)
3651 {
3652         struct qeth_card *card;
3653
3654         card = (struct qeth_card *) dev->priv;
3655         card->stats.tx_errors++;
3656         qeth_schedule_recovery(card);
3657 }
3658
3659 static int
3660 qeth_open(struct net_device *dev)
3661 {
3662         struct qeth_card *card;
3663
3664         QETH_DBF_TEXT(trace, 4, "qethopen");
3665
3666         card = (struct qeth_card *) dev->priv;
3667
3668         if (card->state != CARD_STATE_SOFTSETUP)
3669                 return -ENODEV;
3670
3671         if ( (card->options.layer2) &&
3672              (!card->info.layer2_mac_registered)) {
3673                 QETH_DBF_TEXT(trace,4,"nomacadr");
3674                 return -EPERM;
3675         }
3676         card->dev->flags |= IFF_UP;
3677         netif_start_queue(dev);
3678         card->data.state = CH_STATE_UP;
3679         card->state = CARD_STATE_UP;
3680
3681         if (!card->lan_online){
3682                 if (netif_carrier_ok(dev))
3683                         netif_carrier_off(dev);
3684         }
3685         return 0;
3686 }
3687
3688 static int
3689 qeth_stop(struct net_device *dev)
3690 {
3691         struct qeth_card *card;
3692
3693         QETH_DBF_TEXT(trace, 4, "qethstop");
3694
3695         card = (struct qeth_card *) dev->priv;
3696
3697         netif_stop_queue(dev);
3698         card->dev->flags &= ~IFF_UP;
3699         if (card->state == CARD_STATE_UP)
3700                 card->state = CARD_STATE_SOFTSETUP;
3701         return 0;
3702 }
3703
3704 static inline int
3705 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3706 {
3707         int cast_type = RTN_UNSPEC;
3708
3709         if (skb->dst && skb->dst->neighbour){
3710                 cast_type = skb->dst->neighbour->type;
3711                 if ((cast_type == RTN_BROADCAST) ||
3712                     (cast_type == RTN_MULTICAST) ||
3713                     (cast_type == RTN_ANYCAST))
3714                         return cast_type;
3715                 else
3716                         return RTN_UNSPEC;
3717         }
3718         /* try something else */
3719         if (skb->protocol == ETH_P_IPV6)
3720                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3721         else if (skb->protocol == ETH_P_IP)
3722                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3723         /* ... */
3724         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3725                 return RTN_BROADCAST;
3726         else {
3727                 u16 hdr_mac;
3728
3729                 hdr_mac = *((u16 *)skb->data);
3730                 /* tr multicast? */
3731                 switch (card->info.link_type) {
3732                 case QETH_LINK_TYPE_HSTR:
3733                 case QETH_LINK_TYPE_LANE_TR:
3734                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3735                             (hdr_mac == QETH_TR_MAC_C))
3736                                 return RTN_MULTICAST;
3737                 /* eth or so multicast? */
3738                 default:
3739                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3740                             (hdr_mac == QETH_ETH_MAC_V6))
3741                                 return RTN_MULTICAST;
3742                 }
3743         }
3744         return cast_type;
3745 }
3746
3747 static inline int
3748 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3749                         int ipv, int cast_type)
3750 {
3751         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3752                 return card->qdio.default_out_queue;
3753         switch (card->qdio.no_out_queues) {
3754         case 4:
3755                 if (cast_type && card->info.is_multicast_different)
3756                         return card->info.is_multicast_different &
3757                                 (card->qdio.no_out_queues - 1);
3758                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3759                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3760                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3761                                         return 3;
3762                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3763                                         return 2;
3764                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3765                                         return 1;
3766                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3767                                         return 0;
3768                         }
3769                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3770                                 return 3 - (skb->nh.iph->tos >> 6);
3771                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3772                         /* TODO: IPv6!!! */
3773                 }
3774                 return card->qdio.default_out_queue;
3775         case 1: /* fallthrough for single-out-queue 1920-device */
3776         default:
3777                 return card->qdio.default_out_queue;
3778         }
3779 }
3780
3781 static inline int
3782 qeth_get_ip_version(struct sk_buff *skb)
3783 {
3784         switch (skb->protocol) {
3785         case ETH_P_IPV6:
3786                 return 6;
3787         case ETH_P_IP:
3788                 return 4;
3789         default:
3790                 return 0;
3791         }
3792 }
3793
3794 static inline int
3795 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3796                  struct qeth_hdr **hdr, int ipv)
3797 {
3798 #ifdef CONFIG_QETH_VLAN
3799         u16 *tag;
3800 #endif
3801
3802         QETH_DBF_TEXT(trace, 6, "prepskb");
3803
3804 #ifdef CONFIG_QETH_VLAN
3805         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3806             ((ipv == 6) || card->options.layer2) ) {
3807                 /*
3808                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3809                  * to the beginning of the new header.  We are using three
3810                  * memcpys instead of one memmove to save cycles.
3811                  */
3812                 skb_push(*skb, VLAN_HLEN);
3813                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3814                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3815                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3816                 tag = (u16 *)((*skb)->data + 12);
3817                 /*
3818                  * first two bytes  = ETH_P_8021Q (0x8100)
3819                  * second two bytes = VLANID
3820                  */
3821                 *tag = __constant_htons(ETH_P_8021Q);
3822                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3823         }
3824 #endif
3825         *hdr = (struct qeth_hdr *)
3826                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3827         if (hdr == NULL)
3828                 return -EINVAL;
3829         return 0;
3830 }
3831
3832 static inline u8
3833 qeth_get_qeth_hdr_flags4(int cast_type)
3834 {
3835         if (cast_type == RTN_MULTICAST)
3836                 return QETH_CAST_MULTICAST;
3837         if (cast_type == RTN_BROADCAST)
3838                 return QETH_CAST_BROADCAST;
3839         return QETH_CAST_UNICAST;
3840 }
3841
3842 static inline u8
3843 qeth_get_qeth_hdr_flags6(int cast_type)
3844 {
3845         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3846         if (cast_type == RTN_MULTICAST)
3847                 return ct | QETH_CAST_MULTICAST;
3848         if (cast_type == RTN_ANYCAST)
3849                 return ct | QETH_CAST_ANYCAST;
3850         if (cast_type == RTN_BROADCAST)
3851                 return ct | QETH_CAST_BROADCAST;
3852         return ct | QETH_CAST_UNICAST;
3853 }
3854
3855 static inline void
3856 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3857                             struct sk_buff *skb)
3858 {
3859         __u16 hdr_mac;
3860
3861         if (!memcmp(skb->data+QETH_HEADER_SIZE,
3862                     skb->dev->broadcast,6)) { /* broadcast? */
3863                 *(__u32 *)hdr->hdr.l2.flags |=
3864                          QETH_LAYER2_FLAG_BROADCAST << 8;
3865                 return;
3866         }
3867         hdr_mac=*((__u16*)skb->data);
3868         /* tr multicast? */
3869         switch (card->info.link_type) {
3870         case QETH_LINK_TYPE_HSTR:
3871         case QETH_LINK_TYPE_LANE_TR:
3872                 if ((hdr_mac == QETH_TR_MAC_NC) ||
3873                     (hdr_mac == QETH_TR_MAC_C) )
3874                         *(__u32 *)hdr->hdr.l2.flags |=
3875                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3876                 else
3877                         *(__u32 *)hdr->hdr.l2.flags |=
3878                                 QETH_LAYER2_FLAG_UNICAST << 8;
3879                 break;
3880                 /* eth or so multicast? */
3881         default:
3882                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3883                      (hdr_mac==QETH_ETH_MAC_V6) )
3884                         *(__u32 *)hdr->hdr.l2.flags |=
3885                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3886                 else
3887                         *(__u32 *)hdr->hdr.l2.flags |=
3888                                 QETH_LAYER2_FLAG_UNICAST << 8;
3889         }
3890 }
3891
3892 static inline void
3893 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3894                         struct sk_buff *skb, int cast_type)
3895 {
3896         memset(hdr, 0, sizeof(struct qeth_hdr));
3897         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
3898
3899         /* set byte 0 to "0x02" and byte 3 to casting flags */
3900         if (cast_type==RTN_MULTICAST)
3901                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
3902         else if (cast_type==RTN_BROADCAST)
3903                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
3904          else
3905                 qeth_layer2_get_packet_type(card, hdr, skb);
3906
3907         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
3908 #ifdef CONFIG_QETH_VLAN
3909         /* VSWITCH relies on the VLAN
3910          * information to be present in
3911          * the QDIO header */
3912         if ((card->vlangrp != NULL) &&
3913             vlan_tx_tag_present(skb)) {
3914                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
3915                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
3916         }
3917 #endif
3918 }
3919
3920 void
3921 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3922                 struct sk_buff *skb, int ipv, int cast_type)
3923 {
3924         QETH_DBF_TEXT(trace, 6, "fillhdr");
3925
3926         memset(hdr, 0, sizeof(struct qeth_hdr));
3927         if (card->options.layer2) {
3928                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
3929                 return;
3930         }
3931         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
3932         hdr->hdr.l3.ext_flags = 0;
3933 #ifdef CONFIG_QETH_VLAN
3934         /*
3935          * before we're going to overwrite this location with next hop ip.
3936          * v6 uses passthrough, v4 sets the tag in the QDIO header.
3937          */
3938         if (card->vlangrp && vlan_tx_tag_present(skb)) {
3939                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
3940                         QETH_HDR_EXT_VLAN_FRAME :
3941                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
3942                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
3943         }
3944 #endif /* CONFIG_QETH_VLAN */
3945         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
3946         if (ipv == 4) {  /* IPv4 */
3947                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
3948                 memset(hdr->hdr.l3.dest_addr, 0, 12);
3949                 if ((skb->dst) && (skb->dst->neighbour)) {
3950                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
3951                             *((u32 *) skb->dst->neighbour->primary_key);
3952                 } else {
3953                         /* fill in destination address used in ip header */
3954                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
3955                 }
3956         } else if (ipv == 6) { /* IPv6 or passthru */
3957                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
3958                 if ((skb->dst) && (skb->dst->neighbour)) {
3959                         memcpy(hdr->hdr.l3.dest_addr,
3960                                skb->dst->neighbour->primary_key, 16);
3961                 } else {
3962                         /* fill in destination address used in ip header */
3963                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
3964                 }
3965         } else { /* passthrough */
3966                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
3967                     !memcmp(skb->data + sizeof(struct qeth_hdr) + 
3968                     sizeof(__u16), skb->dev->broadcast, 6)) {
3969                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
3970                                                 QETH_HDR_PASSTHRU;
3971                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
3972                             skb->dev->broadcast, 6)) {   /* broadcast? */
3973                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
3974                                                 QETH_HDR_PASSTHRU;
3975                 } else {
3976                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
3977                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
3978                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
3979                 }
3980         }
3981 }
3982
3983 static inline void
3984 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
3985                    int is_tso, int *next_element_to_fill)
3986 {
3987         int length = skb->len;
3988         int length_here;
3989         int element;
3990         char *data;
3991         int first_lap ;
3992
3993         element = *next_element_to_fill;
3994         data = skb->data;
3995         first_lap = (is_tso == 0 ? 1 : 0);
3996
3997         while (length > 0) {
3998                 /* length_here is the remaining amount of data in this page */
3999                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4000                 if (length < length_here)
4001                         length_here = length;
4002
4003                 buffer->element[element].addr = data;
4004                 buffer->element[element].length = length_here;
4005                 length -= length_here;
4006                 if (!length) {
4007                         if (first_lap)
4008                                 buffer->element[element].flags = 0;
4009                         else
4010                                 buffer->element[element].flags =
4011                                     SBAL_FLAGS_LAST_FRAG;
4012                 } else {
4013                         if (first_lap)
4014                                 buffer->element[element].flags =
4015                                     SBAL_FLAGS_FIRST_FRAG;
4016                         else
4017                                 buffer->element[element].flags =
4018                                     SBAL_FLAGS_MIDDLE_FRAG;
4019                 }
4020                 data += length_here;
4021                 element++;
4022                 first_lap = 0;
4023         }
4024         *next_element_to_fill = element;
4025 }
4026
4027 static inline int
4028 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4029                  struct qeth_qdio_out_buffer *buf,
4030                  struct sk_buff *skb)
4031 {
4032         struct qdio_buffer *buffer;
4033         struct qeth_hdr_tso *hdr;
4034         int flush_cnt = 0, hdr_len, large_send = 0;
4035
4036         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4037
4038         buffer = buf->buffer;
4039         atomic_inc(&skb->users);
4040         skb_queue_tail(&buf->skb_list, skb);
4041
4042         hdr  = (struct qeth_hdr_tso *) skb->data;
4043         /*check first on TSO ....*/
4044         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4045                 int element = buf->next_element_to_fill;
4046
4047                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4048                 /*fill first buffer entry only with header information */
4049                 buffer->element[element].addr = skb->data;
4050                 buffer->element[element].length = hdr_len;
4051                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4052                 buf->next_element_to_fill++;
4053                 skb->data += hdr_len;
4054                 skb->len  -= hdr_len;
4055                 large_send = 1;
4056         }
4057         if (skb_shinfo(skb)->nr_frags == 0)
4058                 __qeth_fill_buffer(skb, buffer, large_send,
4059                                    (int *)&buf->next_element_to_fill);
4060         else
4061                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4062                                         (int *)&buf->next_element_to_fill);
4063
4064         if (!queue->do_pack) {
4065                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4066                 /* set state to PRIMED -> will be flushed */
4067                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4068                 flush_cnt = 1;
4069         } else {
4070                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4071 #ifdef CONFIG_QETH_PERF_STATS
4072                 queue->card->perf_stats.skbs_sent_pack++;
4073 #endif
4074                 if (buf->next_element_to_fill >=
4075                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4076                         /*
4077                          * packed buffer if full -> set state PRIMED
4078                          * -> will be flushed
4079                          */
4080                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4081                         flush_cnt = 1;
4082                 }
4083         }
4084         return flush_cnt;
4085 }
4086
4087 static inline int
4088 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4089                          struct sk_buff *skb, struct qeth_hdr *hdr,
4090                          int elements_needed,
4091                          struct qeth_eddp_context *ctx)
4092 {
4093         struct qeth_qdio_out_buffer *buffer;
4094         int buffers_needed = 0;
4095         int flush_cnt = 0;
4096         int index;
4097
4098         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4099
4100         /* spin until we get the queue ... */
4101         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4102                                        QETH_OUT_Q_LOCKED,
4103                                        &queue->state));
4104         /* ... now we've got the queue */
4105         index = queue->next_buf_to_fill;
4106         buffer = &queue->bufs[queue->next_buf_to_fill];
4107         /*
4108          * check if buffer is empty to make sure that we do not 'overtake'
4109          * ourselves and try to fill a buffer that is already primed
4110          */
4111         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4112                 card->stats.tx_dropped++;
4113                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4114                 return -EBUSY;
4115         }
4116         if (ctx == NULL)
4117                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4118                                           QDIO_MAX_BUFFERS_PER_Q;
4119         else {
4120                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4121                 if (buffers_needed < 0) {
4122                         card->stats.tx_dropped++;
4123                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4124                         return -EBUSY;
4125                 }
4126                 queue->next_buf_to_fill =
4127                         (queue->next_buf_to_fill + buffers_needed) %
4128                         QDIO_MAX_BUFFERS_PER_Q;
4129         }
4130         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4131         if (ctx == NULL) {
4132                 qeth_fill_buffer(queue, buffer, skb);
4133                 qeth_flush_buffers(queue, 0, index, 1);
4134         } else {
4135                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4136                 WARN_ON(buffers_needed != flush_cnt);
4137                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4138         }
4139         return 0;
4140 }
4141
4142 static inline int
4143 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4144                     struct sk_buff *skb, struct qeth_hdr *hdr,
4145                     int elements_needed, struct qeth_eddp_context *ctx)
4146 {
4147         struct qeth_qdio_out_buffer *buffer;
4148         int start_index;
4149         int flush_count = 0;
4150         int do_pack = 0;
4151         int tmp;
4152         int rc = 0;
4153
4154         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4155
4156         /* spin until we get the queue ... */
4157         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4158                                        QETH_OUT_Q_LOCKED,
4159                                        &queue->state));
4160         start_index = queue->next_buf_to_fill;
4161         buffer = &queue->bufs[queue->next_buf_to_fill];
4162         /*
4163          * check if buffer is empty to make sure that we do not 'overtake'
4164          * ourselves and try to fill a buffer that is already primed
4165          */
4166         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4167                 card->stats.tx_dropped++;
4168                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4169                 return -EBUSY;
4170         }
4171         /* check if we need to switch packing state of this queue */
4172         qeth_switch_to_packing_if_needed(queue);
4173         if (queue->do_pack){
4174                 do_pack = 1;
4175                 if (ctx == NULL) {
4176                         /* does packet fit in current buffer? */
4177                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4178                             buffer->next_element_to_fill) < elements_needed){
4179                                 /* ... no -> set state PRIMED */
4180                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4181                                 flush_count++;
4182                                 queue->next_buf_to_fill =
4183                                         (queue->next_buf_to_fill + 1) %
4184                                         QDIO_MAX_BUFFERS_PER_Q;
4185                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4186                                 /* we did a step forward, so check buffer state
4187                                  * again */
4188                                 if (atomic_read(&buffer->state) !=
4189                                                 QETH_QDIO_BUF_EMPTY){
4190                                         card->stats.tx_dropped++;
4191                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4192                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4193                                         return -EBUSY;
4194                                 }
4195                         }
4196                 } else {
4197                         /* check if we have enough elements (including following
4198                          * free buffers) to handle eddp context */
4199                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4200                                 printk("eddp tx_dropped 1\n");
4201                                 card->stats.tx_dropped++;
4202                                 rc = -EBUSY;
4203                                 goto out;
4204                         }
4205                 }
4206         }
4207         if (ctx == NULL)
4208                 tmp = qeth_fill_buffer(queue, buffer, skb);
4209         else {
4210                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4211                 if (tmp < 0) {
4212                         printk("eddp tx_dropped 2\n");
4213                         card->stats.tx_dropped++;
4214                         rc = - EBUSY;
4215                         goto out;
4216                 }
4217         }
4218         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4219                                   QDIO_MAX_BUFFERS_PER_Q;
4220         flush_count += tmp;
4221 out:
4222         if (flush_count)
4223                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4224         /*
4225          * queue->state will go from LOCKED -> UNLOCKED or from
4226          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4227          * (switch packing state or flush buffer to get another pci flag out).
4228          * In that case we will enter this loop
4229          */
4230         while (atomic_dec_return(&queue->state)){
4231                 flush_count = 0;
4232                 start_index = queue->next_buf_to_fill;
4233                 /* check if we can go back to non-packing state */
4234                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4235                 /*
4236                  * check if we need to flush a packing buffer to get a pci
4237                  * flag out on the queue
4238                  */
4239                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4240                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4241                 if (flush_count)
4242                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4243         }
4244         /* at this point the queue is UNLOCKED again */
4245 #ifdef CONFIG_QETH_PERF_STATS
4246         if (do_pack)
4247                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4248 #endif /* CONFIG_QETH_PERF_STATS */
4249
4250         return rc;
4251 }
4252
4253 static inline int
4254 qeth_get_elements_no(struct qeth_card *card, void *hdr, struct sk_buff *skb)
4255 {
4256         int elements_needed = 0;
4257
4258         if (skb_shinfo(skb)->nr_frags > 0) {
4259                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4260         }
4261         if (elements_needed == 0 )
4262                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4263                                         + skb->len) >> PAGE_SHIFT);
4264         if (elements_needed > QETH_MAX_BUFFER_ELEMENTS(card)){
4265                 PRINT_ERR("qeth_do_send_packet: invalid size of "
4266                           "IP packet. Discarded.");
4267                 return 0;
4268         }
4269         return elements_needed;
4270 }
4271
4272 static inline int
4273 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4274 {
4275         int ipv = 0;
4276         int cast_type;
4277         struct qeth_qdio_out_q *queue;
4278         struct qeth_hdr *hdr;
4279         int elements_needed = 0;
4280         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4281         struct qeth_eddp_context *ctx = NULL;
4282         int rc;
4283
4284         QETH_DBF_TEXT(trace, 6, "sendpkt");
4285
4286         if (!card->options.layer2) {
4287                 ipv = qeth_get_ip_version(skb);
4288                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4289                         if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4290                                 card->stats.tx_dropped++;
4291                                 dev_kfree_skb_irq(skb);
4292                                 return 0;
4293                         }
4294                         if(card->dev->type == ARPHRD_IEEE802_TR){
4295                                 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4296                         } else {
4297                                 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4298                         }
4299                 }
4300         }
4301         cast_type = qeth_get_cast_type(card, skb);
4302         if ((cast_type == RTN_BROADCAST) && (card->info.broadcast_capable == 0)){
4303                 card->stats.tx_dropped++;
4304                 card->stats.tx_errors++;
4305                 dev_kfree_skb_any(skb);
4306                 return NETDEV_TX_OK;
4307         }
4308         queue = card->qdio.out_qs
4309                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4310
4311         if (skb_shinfo(skb)->tso_size)
4312                 large_send = card->options.large_send;
4313
4314         /*are we able to do TSO ? If so ,prepare and send it from here */
4315         if ((large_send == QETH_LARGE_SEND_TSO) &&
4316             (cast_type == RTN_UNSPEC)) {
4317                 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4318                 if (rc) {
4319                         card->stats.tx_dropped++;
4320                         card->stats.tx_errors++;
4321                         dev_kfree_skb_any(skb);
4322                         return NETDEV_TX_OK;
4323                 } 
4324                 elements_needed++;
4325         } else {
4326                 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4327                         QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4328                         return rc;
4329                 }
4330                 qeth_fill_header(card, hdr, skb, ipv, cast_type);
4331         }
4332
4333         if (large_send == QETH_LARGE_SEND_EDDP) {
4334                 ctx = qeth_eddp_create_context(card, skb, hdr);
4335                 if (ctx == NULL) {
4336                         PRINT_WARN("could not create eddp context\n");
4337                         return -EINVAL;
4338                 }
4339         } else {
4340                 elements_needed += qeth_get_elements_no(card,(void*) hdr, skb);
4341                 if (!elements_needed)
4342                         return -EINVAL;
4343         }
4344
4345         if (card->info.type != QETH_CARD_TYPE_IQD)
4346                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4347                                          elements_needed, ctx);
4348         else
4349                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4350                                               elements_needed, ctx);
4351         if (!rc){
4352                 card->stats.tx_packets++;
4353                 card->stats.tx_bytes += skb->len;
4354 #ifdef CONFIG_QETH_PERF_STATS
4355                 if (skb_shinfo(skb)->tso_size &&
4356                    !(large_send == QETH_LARGE_SEND_NO)) {
4357                         card->perf_stats.large_send_bytes += skb->len;
4358                         card->perf_stats.large_send_cnt++;
4359                 }
4360                 if (skb_shinfo(skb)->nr_frags > 0){
4361                         card->perf_stats.sg_skbs_sent++;
4362                         /* nr_frags + skb->data */
4363                         card->perf_stats.sg_frags_sent +=
4364                                 skb_shinfo(skb)->nr_frags + 1;
4365                 }
4366 #endif /* CONFIG_QETH_PERF_STATS */
4367         }
4368         if (ctx != NULL) {
4369                 /* drop creator's reference */
4370                 qeth_eddp_put_context(ctx);
4371                 /* free skb; it's not referenced by a buffer */
4372                 if (rc == 0)
4373                         dev_kfree_skb_any(skb);
4374
4375         }
4376         return rc;
4377 }
4378
4379 static int
4380 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4381 {
4382         struct qeth_card *card = (struct qeth_card *) dev->priv;
4383         int rc = 0;
4384
4385         switch(regnum){
4386         case MII_BMCR: /* Basic mode control register */
4387                 rc = BMCR_FULLDPLX;
4388                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4389                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4390                         rc |= BMCR_SPEED100;
4391                 break;
4392         case MII_BMSR: /* Basic mode status register */
4393                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4394                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4395                      BMSR_100BASE4;
4396                 break;
4397         case MII_PHYSID1: /* PHYS ID 1 */
4398                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4399                      dev->dev_addr[2];
4400                 rc = (rc >> 5) & 0xFFFF;
4401                 break;
4402         case MII_PHYSID2: /* PHYS ID 2 */
4403                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4404                 break;
4405         case MII_ADVERTISE: /* Advertisement control reg */
4406                 rc = ADVERTISE_ALL;
4407                 break;
4408         case MII_LPA: /* Link partner ability reg */
4409                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4410                      LPA_100BASE4 | LPA_LPACK;
4411                 break;
4412         case MII_EXPANSION: /* Expansion register */
4413                 break;
4414         case MII_DCOUNTER: /* disconnect counter */
4415                 break;
4416         case MII_FCSCOUNTER: /* false carrier counter */
4417                 break;
4418         case MII_NWAYTEST: /* N-way auto-neg test register */
4419                 break;
4420         case MII_RERRCOUNTER: /* rx error counter */
4421                 rc = card->stats.rx_errors;
4422                 break;
4423         case MII_SREVISION: /* silicon revision */
4424                 break;
4425         case MII_RESV1: /* reserved 1 */
4426                 break;
4427         case MII_LBRERROR: /* loopback, rx, bypass error */
4428                 break;
4429         case MII_PHYADDR: /* physical address */
4430                 break;
4431         case MII_RESV2: /* reserved 2 */
4432                 break;
4433         case MII_TPISTATUS: /* TPI status for 10mbps */
4434                 break;
4435         case MII_NCONFIG: /* network interface config */
4436                 break;
4437         default:
4438                 rc = 0;
4439                 break;
4440         }
4441         return rc;
4442 }
4443
4444 static void
4445 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4446 {
4447         switch(regnum){
4448         case MII_BMCR: /* Basic mode control register */
4449         case MII_BMSR: /* Basic mode status register */
4450         case MII_PHYSID1: /* PHYS ID 1 */
4451         case MII_PHYSID2: /* PHYS ID 2 */
4452         case MII_ADVERTISE: /* Advertisement control reg */
4453         case MII_LPA: /* Link partner ability reg */
4454         case MII_EXPANSION: /* Expansion register */
4455         case MII_DCOUNTER: /* disconnect counter */
4456         case MII_FCSCOUNTER: /* false carrier counter */
4457         case MII_NWAYTEST: /* N-way auto-neg test register */
4458         case MII_RERRCOUNTER: /* rx error counter */
4459         case MII_SREVISION: /* silicon revision */
4460         case MII_RESV1: /* reserved 1 */
4461         case MII_LBRERROR: /* loopback, rx, bypass error */
4462         case MII_PHYADDR: /* physical address */
4463         case MII_RESV2: /* reserved 2 */
4464         case MII_TPISTATUS: /* TPI status for 10mbps */
4465         case MII_NCONFIG: /* network interface config */
4466         default:
4467                 break;
4468         }
4469 }
4470
4471 static inline const char *
4472 qeth_arp_get_error_cause(int *rc)
4473 {
4474         switch (*rc) {
4475         case QETH_IPA_ARP_RC_FAILED:
4476                 *rc = -EIO;
4477                 return "operation failed";
4478         case QETH_IPA_ARP_RC_NOTSUPP:
4479                 *rc = -EOPNOTSUPP;
4480                 return "operation not supported";
4481         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4482                 *rc = -EINVAL;
4483                 return "argument out of range";
4484         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4485                 *rc = -EOPNOTSUPP;
4486                 return "query operation not supported";
4487         case QETH_IPA_ARP_RC_Q_NO_DATA:
4488                 *rc = -ENOENT;
4489                 return "no query data available";
4490         default:
4491                 return "unknown error";
4492         }
4493 }
4494
4495 static int
4496 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4497                              __u16, long);
4498
4499 static int
4500 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4501 {
4502         int tmp;
4503         int rc;
4504
4505         QETH_DBF_TEXT(trace,3,"arpstnoe");
4506
4507         /* TODO: really not supported by GuestLAN? */
4508         if (card->info.guestlan)
4509                 return -EOPNOTSUPP;
4510         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4511                 PRINT_WARN("ARP processing not supported "
4512                            "on %s!\n", QETH_CARD_IFNAME(card));
4513                 return -EOPNOTSUPP;
4514         }
4515         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4516                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4517                                           no_entries);
4518         if (rc) {
4519                 tmp = rc;
4520                 PRINT_WARN("Could not set number of ARP entries on %s: "
4521                            "%s (0x%x/%d)\n",
4522                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4523                            tmp, tmp);
4524         }
4525         return rc;
4526 }
4527
4528 static inline void
4529 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4530                                struct qeth_arp_query_data *qdata,
4531                                int entry_size, int uentry_size)
4532 {
4533         char *entry_ptr;
4534         char *uentry_ptr;
4535         int i;
4536
4537         entry_ptr = (char *)&qdata->data;
4538         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4539         for (i = 0; i < qdata->no_entries; ++i){
4540                 /* strip off 32 bytes "media specific information" */
4541                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4542                 entry_ptr += entry_size;
4543                 uentry_ptr += uentry_size;
4544         }
4545 }
4546
4547 static int
4548 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4549                   unsigned long data)
4550 {
4551         struct qeth_ipa_cmd *cmd;
4552         struct qeth_arp_query_data *qdata;
4553         struct qeth_arp_query_info *qinfo;
4554         int entry_size;
4555         int uentry_size;
4556         int i;
4557
4558         QETH_DBF_TEXT(trace,4,"arpquecb");
4559
4560         qinfo = (struct qeth_arp_query_info *) reply->param;
4561         cmd = (struct qeth_ipa_cmd *) data;
4562         if (cmd->hdr.return_code) {
4563                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4564                 return 0;
4565         }
4566         if (cmd->data.setassparms.hdr.return_code) {
4567                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4568                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4569                 return 0;
4570         }
4571         qdata = &cmd->data.setassparms.data.query_arp;
4572         switch(qdata->reply_bits){
4573         case 5:
4574                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4575                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4576                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4577                 break;
4578         case 7:
4579                 /* fall through to default */
4580         default:
4581                 /* tr is the same as eth -> entry7 */
4582                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4583                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4584                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4585                 break;
4586         }
4587         /* check if there is enough room in userspace */
4588         if ((qinfo->udata_len - qinfo->udata_offset) <
4589                         qdata->no_entries * uentry_size){
4590                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4591                 cmd->hdr.return_code = -ENOMEM;
4592                 PRINT_WARN("query ARP user space buffer is too small for "
4593                            "the returned number of ARP entries. "
4594                            "Aborting query!\n");
4595                 goto out_error;
4596         }
4597         QETH_DBF_TEXT_(trace, 4, "anore%i",
4598                        cmd->data.setassparms.hdr.number_of_replies);
4599         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4600         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4601
4602         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4603                 /* strip off "media specific information" */
4604                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4605                                                uentry_size);
4606         } else
4607                 /*copy entries to user buffer*/
4608                 memcpy(qinfo->udata + qinfo->udata_offset,
4609                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4610
4611         qinfo->no_entries += qdata->no_entries;
4612         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4613         /* check if all replies received ... */
4614         if (cmd->data.setassparms.hdr.seq_no <
4615             cmd->data.setassparms.hdr.number_of_replies)
4616                 return 1;
4617         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4618         /* keep STRIP_ENTRIES flag so the user program can distinguish
4619          * stripped entries from normal ones */
4620         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4621                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4622         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4623         return 0;
4624 out_error:
4625         i = 0;
4626         memcpy(qinfo->udata, &i, 4);
4627         return 0;
4628 }
4629
4630 static int
4631 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4632                       int len, int (*reply_cb)(struct qeth_card *,
4633                                                struct qeth_reply *,
4634                                                unsigned long),
4635                       void *reply_param)
4636 {
4637         QETH_DBF_TEXT(trace,4,"sendarp");
4638
4639         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4640         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4641                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4642         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4643                                       reply_cb, reply_param);
4644 }
4645
4646 static int
4647 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4648                       int len, int (*reply_cb)(struct qeth_card *,
4649                                                struct qeth_reply *,
4650                                                unsigned long),
4651                       void *reply_param)
4652 {
4653         u16 s1, s2;
4654
4655         QETH_DBF_TEXT(trace,4,"sendsnmp");
4656
4657         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4658         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4659                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4660         /* adjust PDU length fields in IPA_PDU_HEADER */
4661         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4662         s2 = (u32) len;
4663         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4664         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4665         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4666         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4667         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4668                                       reply_cb, reply_param);
4669 }
4670
4671 static struct qeth_cmd_buffer *
4672 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4673                          __u16, __u16, enum qeth_prot_versions);
4674 static int
4675 qeth_arp_query(struct qeth_card *card, char *udata)
4676 {
4677         struct qeth_cmd_buffer *iob;
4678         struct qeth_arp_query_info qinfo = {0, };
4679         int tmp;
4680         int rc;
4681
4682         QETH_DBF_TEXT(trace,3,"arpquery");
4683
4684         /*
4685          * currently GuestLAN  does only deliver all zeros on query arp,
4686          * even though arp processing is supported (according to IPA supp.
4687          * funcs flags); since all zeros is no valueable information,
4688          * we say EOPNOTSUPP for all ARP functions
4689          */
4690         /*if (card->info.guestlan)
4691                 return -EOPNOTSUPP; */
4692         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4693                                IPA_ARP_PROCESSING)) {
4694                 PRINT_WARN("ARP processing not supported "
4695                            "on %s!\n", QETH_CARD_IFNAME(card));
4696                 return -EOPNOTSUPP;
4697         }
4698         /* get size of userspace buffer and mask_bits -> 6 bytes */
4699         if (copy_from_user(&qinfo, udata, 6))
4700                 return -EFAULT;
4701         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4702                 return -ENOMEM;
4703         memset(qinfo.udata, 0, qinfo.udata_len);
4704         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4705         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4706                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4707                                        sizeof(int),QETH_PROT_IPV4);
4708
4709         rc = qeth_send_ipa_arp_cmd(card, iob,
4710                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4711                                    qeth_arp_query_cb, (void *)&qinfo);
4712         if (rc) {
4713                 tmp = rc;
4714                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4715                            "(0x%x/%d)\n",
4716                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4717                            tmp, tmp);
4718                 copy_to_user(udata, qinfo.udata, 4);
4719         } else {
4720                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4721         }
4722         kfree(qinfo.udata);
4723         return rc;
4724 }
4725
4726 /**
4727  * SNMP command callback
4728  */
4729 static int
4730 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4731                      unsigned long sdata)
4732 {
4733         struct qeth_ipa_cmd *cmd;
4734         struct qeth_arp_query_info *qinfo;
4735         struct qeth_snmp_cmd *snmp;
4736         unsigned char *data;
4737         __u16 data_len;
4738
4739         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4740
4741         cmd = (struct qeth_ipa_cmd *) sdata;
4742         data = (unsigned char *)((char *)cmd - reply->offset);
4743         qinfo = (struct qeth_arp_query_info *) reply->param;
4744         snmp = &cmd->data.setadapterparms.data.snmp;
4745
4746         if (cmd->hdr.return_code) {
4747                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4748                 return 0;
4749         }
4750         if (cmd->data.setadapterparms.hdr.return_code) {
4751                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4752                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4753                 return 0;
4754         }
4755         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4756         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4757                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4758         else
4759                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4760
4761         /* check if there is enough room in userspace */
4762         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4763                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4764                 cmd->hdr.return_code = -ENOMEM;
4765                 return 0;
4766         }
4767         QETH_DBF_TEXT_(trace, 4, "snore%i",
4768                        cmd->data.setadapterparms.hdr.used_total);
4769         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4770         /*copy entries to user buffer*/
4771         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4772                 memcpy(qinfo->udata + qinfo->udata_offset,
4773                        (char *)snmp,
4774                        data_len + offsetof(struct qeth_snmp_cmd,data));
4775                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4776         } else {
4777                 memcpy(qinfo->udata + qinfo->udata_offset,
4778                        (char *)&snmp->request, data_len);
4779         }
4780         qinfo->udata_offset += data_len;
4781         /* check if all replies received ... */
4782                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4783                                cmd->data.setadapterparms.hdr.used_total);
4784                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4785                                cmd->data.setadapterparms.hdr.seq_no);
4786         if (cmd->data.setadapterparms.hdr.seq_no <
4787             cmd->data.setadapterparms.hdr.used_total)
4788                 return 1;
4789         return 0;
4790 }
4791
4792 static struct qeth_cmd_buffer *
4793 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4794                        enum qeth_prot_versions );
4795
4796 static struct qeth_cmd_buffer *
4797 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4798 {
4799         struct qeth_cmd_buffer *iob;
4800         struct qeth_ipa_cmd *cmd;
4801
4802         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4803                                      QETH_PROT_IPV4);
4804         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4805         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4806         cmd->data.setadapterparms.hdr.command_code = command;
4807         cmd->data.setadapterparms.hdr.used_total = 1;
4808         cmd->data.setadapterparms.hdr.seq_no = 1;
4809
4810         return iob;
4811 }
4812
4813 /**
4814  * function to send SNMP commands to OSA-E card
4815  */
4816 static int
4817 qeth_snmp_command(struct qeth_card *card, char *udata)
4818 {
4819         struct qeth_cmd_buffer *iob;
4820         struct qeth_ipa_cmd *cmd;
4821         struct qeth_snmp_ureq *ureq;
4822         int req_len;
4823         struct qeth_arp_query_info qinfo = {0, };
4824         int rc = 0;
4825
4826         QETH_DBF_TEXT(trace,3,"snmpcmd");
4827
4828         if (card->info.guestlan)
4829                 return -EOPNOTSUPP;
4830
4831         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4832             (!card->options.layer2) ) {
4833                 PRINT_WARN("SNMP Query MIBS not supported "
4834                            "on %s!\n", QETH_CARD_IFNAME(card));
4835                 return -EOPNOTSUPP;
4836         }
4837         /* skip 4 bytes (data_len struct member) to get req_len */
4838         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4839                 return -EFAULT;
4840         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4841         if (!ureq) {
4842                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4843                 return -ENOMEM;
4844         }
4845         if (copy_from_user(ureq, udata,
4846                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4847                 kfree(ureq);
4848                 return -EFAULT;
4849         }
4850         qinfo.udata_len = ureq->hdr.data_len;
4851         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4852                 kfree(ureq);
4853                 return -ENOMEM;
4854         }
4855         memset(qinfo.udata, 0, qinfo.udata_len);
4856         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4857
4858         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4859                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4860         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4861         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4862         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4863                                     qeth_snmp_command_cb, (void *)&qinfo);
4864         if (rc)
4865                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4866                            QETH_CARD_IFNAME(card), rc);
4867          else
4868                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4869
4870         kfree(ureq);
4871         kfree(qinfo.udata);
4872         return rc;
4873 }
4874
4875 static int
4876 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4877                             unsigned long);
4878
4879 static int
4880 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4881                       __u16, long,
4882                       int (*reply_cb)
4883                       (struct qeth_card *, struct qeth_reply *, unsigned long),
4884                       void *reply_param);
4885
4886 static int
4887 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4888 {
4889         struct qeth_cmd_buffer *iob;
4890         char buf[16];
4891         int tmp;
4892         int rc;
4893
4894         QETH_DBF_TEXT(trace,3,"arpadent");
4895
4896         /*
4897          * currently GuestLAN  does only deliver all zeros on query arp,
4898          * even though arp processing is supported (according to IPA supp.
4899          * funcs flags); since all zeros is no valueable information,
4900          * we say EOPNOTSUPP for all ARP functions
4901          */
4902         if (card->info.guestlan)
4903                 return -EOPNOTSUPP;
4904         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4905                 PRINT_WARN("ARP processing not supported "
4906                            "on %s!\n", QETH_CARD_IFNAME(card));
4907                 return -EOPNOTSUPP;
4908         }
4909
4910         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4911                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
4912                                        sizeof(struct qeth_arp_cache_entry),
4913                                        QETH_PROT_IPV4);
4914         rc = qeth_send_setassparms(card, iob,
4915                                    sizeof(struct qeth_arp_cache_entry),
4916                                    (unsigned long) entry,
4917                                    qeth_default_setassparms_cb, NULL);
4918         if (rc) {
4919                 tmp = rc;
4920                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4921                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4922                            "%s (0x%x/%d)\n",
4923                            buf, QETH_CARD_IFNAME(card),
4924                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4925         }
4926         return rc;
4927 }
4928
4929 static int
4930 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4931 {
4932         struct qeth_cmd_buffer *iob;
4933         char buf[16] = {0, };
4934         int tmp;
4935         int rc;
4936
4937         QETH_DBF_TEXT(trace,3,"arprment");
4938
4939         /*
4940          * currently GuestLAN  does only deliver all zeros on query arp,
4941          * even though arp processing is supported (according to IPA supp.
4942          * funcs flags); since all zeros is no valueable information,
4943          * we say EOPNOTSUPP for all ARP functions
4944          */
4945         if (card->info.guestlan)
4946                 return -EOPNOTSUPP;
4947         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4948                 PRINT_WARN("ARP processing not supported "
4949                            "on %s!\n", QETH_CARD_IFNAME(card));
4950                 return -EOPNOTSUPP;
4951         }
4952         memcpy(buf, entry, 12);
4953         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4954                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
4955                                        12,
4956                                        QETH_PROT_IPV4);
4957         rc = qeth_send_setassparms(card, iob,
4958                                    12, (unsigned long)buf,
4959                                    qeth_default_setassparms_cb, NULL);
4960         if (rc) {
4961                 tmp = rc;
4962                 memset(buf, 0, 16);
4963                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4964                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
4965                            "%s (0x%x/%d)\n",
4966                            buf, QETH_CARD_IFNAME(card),
4967                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4968         }
4969         return rc;
4970 }
4971
4972 static int
4973 qeth_arp_flush_cache(struct qeth_card *card)
4974 {
4975         int rc;
4976         int tmp;
4977
4978         QETH_DBF_TEXT(trace,3,"arpflush");
4979
4980         /*
4981          * currently GuestLAN  does only deliver all zeros on query arp,
4982          * even though arp processing is supported (according to IPA supp.
4983          * funcs flags); since all zeros is no valueable information,
4984          * we say EOPNOTSUPP for all ARP functions
4985          */
4986         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
4987                 return -EOPNOTSUPP;
4988         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4989                 PRINT_WARN("ARP processing not supported "
4990                            "on %s!\n", QETH_CARD_IFNAME(card));
4991                 return -EOPNOTSUPP;
4992         }
4993         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4994                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
4995         if (rc){
4996                 tmp = rc;
4997                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
4998                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4999                            tmp, tmp);
5000         }
5001         return rc;
5002 }
5003
5004 static int
5005 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5006 {
5007         struct qeth_card *card = (struct qeth_card *)dev->priv;
5008         struct qeth_arp_cache_entry arp_entry;
5009         struct mii_ioctl_data *mii_data;
5010         int rc = 0;
5011
5012         if (!card)
5013                 return -ENODEV;
5014
5015         if ((card->state != CARD_STATE_UP) &&
5016             (card->state != CARD_STATE_SOFTSETUP))
5017                 return -ENODEV;
5018
5019         switch (cmd){
5020         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5021                 if ( !capable(CAP_NET_ADMIN) ||
5022                      (card->options.layer2) ) {
5023                         rc = -EPERM;
5024                         break;
5025                 }
5026                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5027                 break;
5028         case SIOC_QETH_ARP_QUERY_INFO:
5029                 if ( !capable(CAP_NET_ADMIN) ||
5030                      (card->options.layer2) ) {
5031                         rc = -EPERM;
5032                         break;
5033                 }
5034                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5035                 break;
5036         case SIOC_QETH_ARP_ADD_ENTRY:
5037                 if ( !capable(CAP_NET_ADMIN) ||
5038                      (card->options.layer2) ) {
5039                         rc = -EPERM;
5040                         break;
5041                 }
5042                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5043                                    sizeof(struct qeth_arp_cache_entry)))
5044                         rc = -EFAULT;
5045                 else
5046                         rc = qeth_arp_add_entry(card, &arp_entry);
5047                 break;
5048         case SIOC_QETH_ARP_REMOVE_ENTRY:
5049                 if ( !capable(CAP_NET_ADMIN) ||
5050                      (card->options.layer2) ) {
5051                         rc = -EPERM;
5052                         break;
5053                 }
5054                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5055                                    sizeof(struct qeth_arp_cache_entry)))
5056                         rc = -EFAULT;
5057                 else
5058                         rc = qeth_arp_remove_entry(card, &arp_entry);
5059                 break;
5060         case SIOC_QETH_ARP_FLUSH_CACHE:
5061                 if ( !capable(CAP_NET_ADMIN) ||
5062                      (card->options.layer2) ) {
5063                         rc = -EPERM;
5064                         break;
5065                 }
5066                 rc = qeth_arp_flush_cache(card);
5067                 break;
5068         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5069                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5070                 break;
5071         case SIOC_QETH_GET_CARD_TYPE:
5072                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5073                     !card->info.guestlan)
5074                         return 1;
5075                 return 0;
5076                 break;
5077         case SIOCGMIIPHY:
5078                 mii_data = if_mii(rq);
5079                 mii_data->phy_id = 0;
5080                 break;
5081         case SIOCGMIIREG:
5082                 mii_data = if_mii(rq);
5083                 if (mii_data->phy_id != 0)
5084                         rc = -EINVAL;
5085                 else
5086                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5087                                                            mii_data->reg_num);
5088                 break;
5089         case SIOCSMIIREG:
5090                 rc = -EOPNOTSUPP;
5091                 break;
5092                 /* TODO: remove return if qeth_mdio_write does something */
5093                 if (!capable(CAP_NET_ADMIN)){
5094                         rc = -EPERM;
5095                         break;
5096                 }
5097                 mii_data = if_mii(rq);
5098                 if (mii_data->phy_id != 0)
5099                         rc = -EINVAL;
5100                 else
5101                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5102                                         mii_data->val_in);
5103                 break;
5104         default:
5105                 rc = -EOPNOTSUPP;
5106         }
5107         if (rc)
5108                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5109         return rc;
5110 }
5111
5112 static struct net_device_stats *
5113 qeth_get_stats(struct net_device *dev)
5114 {
5115         struct qeth_card *card;
5116
5117         card = (struct qeth_card *) (dev->priv);
5118
5119         QETH_DBF_TEXT(trace,5,"getstat");
5120
5121         return &card->stats;
5122 }
5123
5124 static int
5125 qeth_change_mtu(struct net_device *dev, int new_mtu)
5126 {
5127         struct qeth_card *card;
5128         char dbf_text[15];
5129
5130         card = (struct qeth_card *) (dev->priv);
5131
5132         QETH_DBF_TEXT(trace,4,"chgmtu");
5133         sprintf(dbf_text, "%8x", new_mtu);
5134         QETH_DBF_TEXT(trace,4,dbf_text);
5135
5136         if (new_mtu < 64)
5137                 return -EINVAL;
5138         if (new_mtu > 65535)
5139                 return -EINVAL;
5140         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5141             (!qeth_mtu_is_valid(card, new_mtu)))
5142                 return -EINVAL;
5143         dev->mtu = new_mtu;
5144         return 0;
5145 }
5146
5147 #ifdef CONFIG_QETH_VLAN
5148 static void
5149 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5150 {
5151         struct qeth_card *card;
5152         unsigned long flags;
5153
5154         QETH_DBF_TEXT(trace,4,"vlanreg");
5155
5156         card = (struct qeth_card *) dev->priv;
5157         spin_lock_irqsave(&card->vlanlock, flags);
5158         card->vlangrp = grp;
5159         spin_unlock_irqrestore(&card->vlanlock, flags);
5160 }
5161
5162 static inline void
5163 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5164                       unsigned short vid)
5165 {
5166         int i;
5167         struct sk_buff *skb;
5168         struct sk_buff_head tmp_list;
5169
5170         skb_queue_head_init(&tmp_list);
5171         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5172                 while ((skb = skb_dequeue(&buf->skb_list))){
5173                         if (vlan_tx_tag_present(skb) &&
5174                             (vlan_tx_tag_get(skb) == vid)) {
5175                                 atomic_dec(&skb->users);
5176                                 dev_kfree_skb(skb);
5177                         } else
5178                                 skb_queue_tail(&tmp_list, skb);
5179                 }
5180         }
5181         while ((skb = skb_dequeue(&tmp_list)))
5182                 skb_queue_tail(&buf->skb_list, skb);
5183 }
5184
5185 static void
5186 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5187 {
5188         int i, j;
5189
5190         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5191         for (i = 0; i < card->qdio.no_out_queues; ++i){
5192                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5193                         qeth_free_vlan_buffer(card, &card->qdio.
5194                                               out_qs[i]->bufs[j], vid);
5195         }
5196 }
5197
5198 static void
5199 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5200 {
5201         struct in_device *in_dev;
5202         struct in_ifaddr *ifa;
5203         struct qeth_ipaddr *addr;
5204
5205         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5206         if (!card->vlangrp)
5207                 return;
5208         rcu_read_lock();
5209         in_dev = __in_dev_get(card->vlangrp->vlan_devices[vid]);
5210         if (!in_dev)
5211                 goto out;
5212         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5213                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5214                 if (addr){
5215                         addr->u.a4.addr = ifa->ifa_address;
5216                         addr->u.a4.mask = ifa->ifa_mask;
5217                         addr->type = QETH_IP_TYPE_NORMAL;
5218                         if (!qeth_delete_ip(card, addr))
5219                                 kfree(addr);
5220                 }
5221         }
5222 out:
5223         rcu_read_unlock();
5224 }
5225
5226 static void
5227 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5228 {
5229 #ifdef CONFIG_QETH_IPV6
5230         struct inet6_dev *in6_dev;
5231         struct inet6_ifaddr *ifa;
5232         struct qeth_ipaddr *addr;
5233
5234         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5235         if (!card->vlangrp)
5236                 return;
5237         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5238         if (!in6_dev)
5239                 return;
5240         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5241                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5242                 if (addr){
5243                         memcpy(&addr->u.a6.addr, &ifa->addr,
5244                                sizeof(struct in6_addr));
5245                         addr->u.a6.pfxlen = ifa->prefix_len;
5246                         addr->type = QETH_IP_TYPE_NORMAL;
5247                         if (!qeth_delete_ip(card, addr))
5248                                 kfree(addr);
5249                 }
5250         }
5251         in6_dev_put(in6_dev);
5252 #endif /* CONFIG_QETH_IPV6 */
5253 }
5254
5255 static void
5256 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5257                             enum qeth_ipa_cmds ipacmd)
5258 {
5259         int rc;
5260         struct qeth_ipa_cmd *cmd;
5261         struct qeth_cmd_buffer *iob;
5262
5263         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5264         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5265         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5266         cmd->data.setdelvlan.vlan_id = i;
5267
5268         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5269         if (rc) {
5270                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5271                           "Continuing\n",i, QETH_CARD_IFNAME(card), rc);
5272                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", ipacmd);
5273                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5274                 QETH_DBF_TEXT_(trace, 2, "err%d", rc);
5275         }
5276 }
5277
5278 static void
5279 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5280 {
5281         unsigned short  i;
5282
5283         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5284
5285         if (!card->vlangrp)
5286                 return;
5287         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5288                 if (card->vlangrp->vlan_devices[i] == NULL)
5289                         continue;
5290                 if (clear)
5291                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5292                 else
5293                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5294         }
5295 }
5296
5297 /*add_vid is layer 2 used only ....*/
5298 static void
5299 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5300 {
5301         struct qeth_card *card;
5302
5303         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5304
5305         card = (struct qeth_card *) dev->priv;
5306         if (!card->options.layer2)
5307                 return;
5308         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5309 }
5310
5311 /*... kill_vid used for both modes*/
5312 static void
5313 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5314 {
5315         struct qeth_card *card;
5316         unsigned long flags;
5317
5318         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5319
5320         card = (struct qeth_card *) dev->priv;
5321         /* free all skbs for the vlan device */
5322         qeth_free_vlan_skbs(card, vid);
5323         spin_lock_irqsave(&card->vlanlock, flags);
5324         /* unregister IP addresses of vlan device */
5325         qeth_free_vlan_addresses4(card, vid);
5326         qeth_free_vlan_addresses6(card, vid);
5327         if (card->vlangrp)
5328                 card->vlangrp->vlan_devices[vid] = NULL;
5329         spin_unlock_irqrestore(&card->vlanlock, flags);
5330         if (card->options.layer2)
5331                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5332         qeth_set_multicast_list(card->dev);
5333 }
5334 #endif
5335
5336 /**
5337  * set multicast address on card
5338  */
5339 static void
5340 qeth_set_multicast_list(struct net_device *dev)
5341 {
5342         struct qeth_card *card = (struct qeth_card *) dev->priv;
5343
5344         QETH_DBF_TEXT(trace,3,"setmulti");
5345         qeth_delete_mc_addresses(card);
5346         qeth_add_multicast_ipv4(card);
5347 #ifdef CONFIG_QETH_IPV6
5348         qeth_add_multicast_ipv6(card);
5349 #endif
5350         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5351                 schedule_work(&card->kernel_thread_starter);
5352 }
5353
5354 static int
5355 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5356 {
5357         return 0;
5358 }
5359
5360 static void
5361 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5362 {
5363         if (dev->type == ARPHRD_IEEE802_TR)
5364                 ip_tr_mc_map(ipm, mac);
5365         else
5366                 ip_eth_mc_map(ipm, mac);
5367 }
5368
5369 static struct qeth_ipaddr *
5370 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5371 {
5372         struct qeth_ipaddr *addr;
5373
5374         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5375         if (addr == NULL) {
5376                 PRINT_WARN("Not enough memory to add address\n");
5377                 return NULL;
5378         }
5379         memset(addr,0,sizeof(struct qeth_ipaddr));
5380         addr->type = QETH_IP_TYPE_NORMAL;
5381         addr->proto = prot;
5382         return addr;
5383 }
5384
5385 static void
5386 qeth_delete_mc_addresses(struct qeth_card *card)
5387 {
5388         struct qeth_ipaddr *iptodo;
5389         unsigned long flags;
5390
5391         QETH_DBF_TEXT(trace,4,"delmc");
5392         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5393         if (!iptodo) {
5394                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5395                 return;
5396         }
5397         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5398         spin_lock_irqsave(&card->ip_lock, flags);
5399         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5400                 kfree(iptodo);
5401         spin_unlock_irqrestore(&card->ip_lock, flags);
5402 }
5403
5404 static inline void
5405 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5406 {
5407         struct qeth_ipaddr *ipm;
5408         struct ip_mc_list *im4;
5409         char buf[MAX_ADDR_LEN];
5410
5411         QETH_DBF_TEXT(trace,4,"addmc");
5412         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5413                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5414                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5415                 if (!ipm)
5416                         continue;
5417                 ipm->u.a4.addr = im4->multiaddr;
5418                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5419                 ipm->is_multicast = 1;
5420                 if (!qeth_add_ip(card,ipm))
5421                         kfree(ipm);
5422         }
5423 }
5424
5425 static inline void
5426 qeth_add_vlan_mc(struct qeth_card *card)
5427 {
5428 #ifdef CONFIG_QETH_VLAN
5429         struct in_device *in_dev;
5430         struct vlan_group *vg;
5431         int i;
5432
5433         QETH_DBF_TEXT(trace,4,"addmcvl");
5434         if ( ((card->options.layer2 == 0) &&
5435               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5436              (card->vlangrp == NULL) )
5437                 return ;
5438
5439         vg = card->vlangrp;
5440         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5441                 if (vg->vlan_devices[i] == NULL ||
5442                     !(vg->vlan_devices[i]->flags & IFF_UP))
5443                         continue;
5444                 in_dev = in_dev_get(vg->vlan_devices[i]);
5445                 if (!in_dev)
5446                         continue;
5447                 read_lock(&in_dev->mc_list_lock);
5448                 qeth_add_mc(card,in_dev);
5449                 read_unlock(&in_dev->mc_list_lock);
5450                 in_dev_put(in_dev);
5451         }
5452 #endif
5453 }
5454
5455 static void
5456 qeth_add_multicast_ipv4(struct qeth_card *card)
5457 {
5458         struct in_device *in4_dev;
5459
5460         QETH_DBF_TEXT(trace,4,"chkmcv4");
5461         in4_dev = in_dev_get(card->dev);
5462         if (in4_dev == NULL)
5463                 return;
5464         read_lock(&in4_dev->mc_list_lock);
5465         qeth_add_mc(card, in4_dev);
5466         qeth_add_vlan_mc(card);
5467         read_unlock(&in4_dev->mc_list_lock);
5468         in_dev_put(in4_dev);
5469 }
5470
5471 #ifdef CONFIG_QETH_IPV6
5472 static inline void
5473 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5474 {
5475         struct qeth_ipaddr *ipm;
5476         struct ifmcaddr6 *im6;
5477         char buf[MAX_ADDR_LEN];
5478
5479         QETH_DBF_TEXT(trace,4,"addmc6");
5480         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5481                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5482                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5483                 if (!ipm)
5484                         continue;
5485                 ipm->is_multicast = 1;
5486                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5487                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5488                        sizeof(struct in6_addr));
5489                 if (!qeth_add_ip(card,ipm))
5490                         kfree(ipm);
5491         }
5492 }
5493
5494 static inline void
5495 qeth_add_vlan_mc6(struct qeth_card *card)
5496 {
5497 #ifdef CONFIG_QETH_VLAN
5498         struct inet6_dev *in_dev;
5499         struct vlan_group *vg;
5500         int i;
5501
5502         QETH_DBF_TEXT(trace,4,"admc6vl");
5503         if ( ((card->options.layer2 == 0) &&
5504               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5505              (card->vlangrp == NULL))
5506                 return ;
5507
5508         vg = card->vlangrp;
5509         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5510                 if (vg->vlan_devices[i] == NULL ||
5511                     !(vg->vlan_devices[i]->flags & IFF_UP))
5512                         continue;
5513                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5514                 if (!in_dev)
5515                         continue;
5516                 read_lock(&in_dev->lock);
5517                 qeth_add_mc6(card,in_dev);
5518                 read_unlock(&in_dev->lock);
5519                 in6_dev_put(in_dev);
5520         }
5521 #endif /* CONFIG_QETH_VLAN */
5522 }
5523
5524 static void
5525 qeth_add_multicast_ipv6(struct qeth_card *card)
5526 {
5527         struct inet6_dev *in6_dev;
5528
5529         QETH_DBF_TEXT(trace,4,"chkmcv6");
5530         if ((card->options.layer2 == 0) &&
5531             (!qeth_is_supported(card, IPA_IPV6)) )
5532                 return ;
5533
5534         in6_dev = in6_dev_get(card->dev);
5535         if (in6_dev == NULL)
5536                 return;
5537         read_lock(&in6_dev->lock);
5538         qeth_add_mc6(card, in6_dev);
5539         qeth_add_vlan_mc6(card);
5540         read_unlock(&in6_dev->lock);
5541         in6_dev_put(in6_dev);
5542 }
5543 #endif /* CONFIG_QETH_IPV6 */
5544
5545 static int
5546 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5547                            enum qeth_ipa_cmds ipacmd,
5548                            int (*reply_cb) (struct qeth_card *,
5549                                             struct qeth_reply*,
5550                                             unsigned long))
5551 {
5552         struct qeth_ipa_cmd *cmd;
5553         struct qeth_cmd_buffer *iob;
5554
5555         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5556         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5557         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5558         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5559         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5560         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5561 }
5562
5563 static int
5564 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5565                                 struct qeth_reply *reply,
5566                                 unsigned long data)
5567 {
5568         struct qeth_ipa_cmd *cmd;
5569         __u8 *mac;
5570
5571         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5572         cmd = (struct qeth_ipa_cmd *) data;
5573         mac = &cmd->data.setdelmac.mac[0];
5574         /* MAC already registered, needed in couple/uncouple case */
5575         if (cmd->hdr.return_code == 0x2005) {
5576                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5577                           "already existing on %s \n",
5578                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5579                           QETH_CARD_IFNAME(card));
5580                 cmd->hdr.return_code = 0;
5581         }
5582         if (cmd->hdr.return_code)
5583                 PRINT_ERR("Could not set group MAC " \
5584                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5585                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5586                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5587         return 0;
5588 }
5589
5590 static int
5591 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5592 {
5593         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5594         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5595                                           qeth_layer2_send_setgroupmac_cb);
5596 }
5597
5598 static int
5599 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5600                                 struct qeth_reply *reply,
5601                                 unsigned long data)
5602 {
5603         struct qeth_ipa_cmd *cmd;
5604         __u8 *mac;
5605
5606         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5607         cmd = (struct qeth_ipa_cmd *) data;
5608         mac = &cmd->data.setdelmac.mac[0];
5609         if (cmd->hdr.return_code)
5610                 PRINT_ERR("Could not delete group MAC " \
5611                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5612                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5613                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5614         return 0;
5615 }
5616
5617 static int
5618 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5619 {
5620         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5621         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5622                                           qeth_layer2_send_delgroupmac_cb);
5623 }
5624
5625 static int
5626 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5627                            struct qeth_reply *reply,
5628                            unsigned long data)
5629 {
5630         struct qeth_ipa_cmd *cmd;
5631
5632         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5633         cmd = (struct qeth_ipa_cmd *) data;
5634         if (cmd->hdr.return_code) {
5635                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5636                 PRINT_WARN("Error in registering MAC address on " \
5637                            "device %s: x%x\n", CARD_BUS_ID(card),
5638                            cmd->hdr.return_code);
5639                 card->info.layer2_mac_registered = 0;
5640                 cmd->hdr.return_code = -EIO;
5641         } else {
5642                 card->info.layer2_mac_registered = 1;
5643                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5644                        OSA_ADDR_LEN);
5645                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5646                            "successfully registered on device %s\n",
5647                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5648                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5649                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5650                            card->dev->name);
5651         }
5652         return 0;
5653 }
5654
5655 static int
5656 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5657 {
5658         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5659         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5660                                           qeth_layer2_send_setmac_cb);
5661 }
5662
5663 static int
5664 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5665                            struct qeth_reply *reply,
5666                            unsigned long data)
5667 {
5668         struct qeth_ipa_cmd *cmd;
5669
5670         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5671         cmd = (struct qeth_ipa_cmd *) data;
5672         if (cmd->hdr.return_code) {
5673                 PRINT_WARN("Error in deregistering MAC address on " \
5674                            "device %s: x%x\n", CARD_BUS_ID(card),
5675                            cmd->hdr.return_code);
5676                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5677                 cmd->hdr.return_code = -EIO;
5678                 return 0;
5679         }
5680         card->info.layer2_mac_registered = 0;
5681
5682         return 0;
5683 }
5684 static int
5685 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5686 {
5687         QETH_DBF_TEXT(trace, 2, "L2Delmac");
5688         if (!card->info.layer2_mac_registered)
5689                 return 0;
5690         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5691                                           qeth_layer2_send_delmac_cb);
5692 }
5693
5694 static int
5695 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5696 {
5697         struct sockaddr *addr = p;
5698         struct qeth_card *card;
5699         int rc = 0;
5700
5701         QETH_DBF_TEXT(trace, 3, "setmac");
5702
5703         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5704                 QETH_DBF_TEXT(trace, 3, "setmcINV");
5705                 return -EOPNOTSUPP;
5706         }
5707         card = (struct qeth_card *) dev->priv;
5708
5709         if (!card->options.layer2) {
5710                 PRINT_WARN("Setting MAC address on %s is not supported"
5711                            "in Layer 3 mode.\n", dev->name);
5712                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5713                 return -EOPNOTSUPP;
5714         }
5715         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5716         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5717         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5718         if (!rc)
5719                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5720         return rc;
5721 }
5722
5723 static void
5724 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5725                         __u8 command, enum qeth_prot_versions prot)
5726 {
5727         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5728         cmd->hdr.command = command;
5729         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5730         cmd->hdr.seqno = card->seqno.ipa;
5731         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5732         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5733         if (card->options.layer2)
5734                 cmd->hdr.prim_version_no = 2;
5735         else
5736                 cmd->hdr.prim_version_no = 1;
5737         cmd->hdr.param_count = 1;
5738         cmd->hdr.prot_version = prot;
5739         cmd->hdr.ipa_supported = 0;
5740         cmd->hdr.ipa_enabled = 0;
5741 }
5742
5743 static struct qeth_cmd_buffer *
5744 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5745                        enum qeth_prot_versions prot)
5746 {
5747         struct qeth_cmd_buffer *iob;
5748         struct qeth_ipa_cmd *cmd;
5749
5750         iob = qeth_wait_for_buffer(&card->write);
5751         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5752         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
5753
5754         return iob;
5755 }
5756
5757 static int
5758 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
5759 {
5760         int rc;
5761         struct qeth_cmd_buffer *iob;
5762         struct qeth_ipa_cmd *cmd;
5763
5764         QETH_DBF_TEXT(trace,4,"setdelmc");
5765
5766         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5767         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5768         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
5769         if (addr->proto == QETH_PROT_IPV6)
5770                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
5771                        sizeof(struct in6_addr));
5772         else
5773                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
5774
5775         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5776
5777         return rc;
5778 }
5779 static inline void
5780 qeth_fill_netmask(u8 *netmask, unsigned int len)
5781 {
5782         int i,j;
5783         for (i=0;i<16;i++) {
5784                 j=(len)-(i*8);
5785                 if (j >= 8)
5786                         netmask[i] = 0xff;
5787                 else if (j > 0)
5788                         netmask[i] = (u8)(0xFF00>>j);
5789                 else
5790                         netmask[i] = 0;
5791         }
5792 }
5793
5794 static int
5795 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
5796                    int ipacmd, unsigned int flags)
5797 {
5798         int rc;
5799         struct qeth_cmd_buffer *iob;
5800         struct qeth_ipa_cmd *cmd;
5801         __u8 netmask[16];
5802
5803         QETH_DBF_TEXT(trace,4,"setdelip");
5804         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
5805
5806         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5807         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5808         if (addr->proto == QETH_PROT_IPV6) {
5809                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
5810                        sizeof(struct in6_addr));
5811                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
5812                 memcpy(cmd->data.setdelip6.mask, netmask,
5813                        sizeof(struct in6_addr));
5814                 cmd->data.setdelip6.flags = flags;
5815         } else {
5816                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
5817                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
5818                 cmd->data.setdelip4.flags = flags;
5819         }
5820
5821         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5822
5823         return rc;
5824 }
5825
5826 static int
5827 qeth_layer2_register_addr_entry(struct qeth_card *card,
5828                                 struct qeth_ipaddr *addr)
5829 {
5830         if (!addr->is_multicast)
5831                 return 0;
5832         QETH_DBF_TEXT(trace, 2, "setgmac");
5833         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
5834         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
5835 }
5836
5837 static int
5838 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
5839                                   struct qeth_ipaddr *addr)
5840 {
5841         if (!addr->is_multicast)
5842                 return 0;
5843         QETH_DBF_TEXT(trace, 2, "delgmac");
5844         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
5845         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
5846 }
5847
5848 static int
5849 qeth_layer3_register_addr_entry(struct qeth_card *card,
5850                                 struct qeth_ipaddr *addr)
5851 {
5852         char buf[50];
5853         int rc;
5854         int cnt = 3;
5855
5856         if (addr->proto == QETH_PROT_IPV4) {
5857                 QETH_DBF_TEXT(trace, 2,"setaddr4");
5858                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5859         } else if (addr->proto == QETH_PROT_IPV6) {
5860                 QETH_DBF_TEXT(trace, 2, "setaddr6");
5861                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5862                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5863         } else {
5864                 QETH_DBF_TEXT(trace, 2, "setaddr?");
5865                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5866         }
5867         do {
5868                 if (addr->is_multicast)
5869                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
5870                 else
5871                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
5872                                         addr->set_flags);
5873                 if (rc)
5874                         QETH_DBF_TEXT(trace, 2, "failed");
5875         } while ((--cnt > 0) && rc);
5876         if (rc){
5877                 QETH_DBF_TEXT(trace, 2, "FAILED");
5878                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5879                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
5880                            buf, rc, rc);
5881         }
5882         return rc;
5883 }
5884
5885 static int
5886 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
5887                                   struct qeth_ipaddr *addr)
5888 {
5889         //char buf[50];
5890         int rc;
5891
5892         if (addr->proto == QETH_PROT_IPV4) {
5893                 QETH_DBF_TEXT(trace, 2,"deladdr4");
5894                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5895         } else if (addr->proto == QETH_PROT_IPV6) {
5896                 QETH_DBF_TEXT(trace, 2, "deladdr6");
5897                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5898                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5899         } else {
5900                 QETH_DBF_TEXT(trace, 2, "deladdr?");
5901                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5902         }
5903         if (addr->is_multicast)
5904                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
5905         else
5906                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
5907                                         addr->del_flags);
5908         if (rc) {
5909                 QETH_DBF_TEXT(trace, 2, "failed");
5910                 /* TODO: re-activate this warning as soon as we have a
5911                  * clean mirco code
5912                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5913                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
5914                            buf, rc);
5915                 */
5916         }
5917         return rc;
5918 }
5919
5920 static int
5921 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5922 {
5923         if (card->options.layer2)
5924                 return qeth_layer2_register_addr_entry(card, addr);
5925
5926         return qeth_layer3_register_addr_entry(card, addr);
5927 }
5928
5929 static int
5930 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5931 {
5932         if (card->options.layer2)
5933                 return qeth_layer2_deregister_addr_entry(card, addr);
5934
5935         return qeth_layer3_deregister_addr_entry(card, addr);
5936 }
5937
5938 static u32
5939 qeth_ethtool_get_tx_csum(struct net_device *dev)
5940 {
5941         /* We may need to say that we support tx csum offload if
5942          * we do EDDP or TSO. There are discussions going on to
5943          * enforce rules in the stack and in ethtool that make
5944          * SG and TSO depend on HW_CSUM. At the moment there are
5945          * no such rules....
5946          * If we say yes here, we have to checksum outbound packets
5947          * any time. */
5948         return 0;
5949 }
5950
5951 static int
5952 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
5953 {
5954         return -EINVAL;
5955 }
5956
5957 static u32
5958 qeth_ethtool_get_rx_csum(struct net_device *dev)
5959 {
5960         struct qeth_card *card = (struct qeth_card *)dev->priv;
5961
5962         return (card->options.checksum_type == HW_CHECKSUMMING);
5963 }
5964
5965 static int
5966 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
5967 {
5968         struct qeth_card *card = (struct qeth_card *)dev->priv;
5969
5970         if ((card->state != CARD_STATE_DOWN) &&
5971             (card->state != CARD_STATE_RECOVER))
5972                 return -EPERM;
5973         if (data)
5974                 card->options.checksum_type = HW_CHECKSUMMING;
5975         else
5976                 card->options.checksum_type = SW_CHECKSUMMING;
5977         return 0;
5978 }
5979
5980 static u32
5981 qeth_ethtool_get_sg(struct net_device *dev)
5982 {
5983         struct qeth_card *card = (struct qeth_card *)dev->priv;
5984
5985         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
5986                 (dev->features & NETIF_F_SG));
5987 }
5988
5989 static int
5990 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
5991 {
5992         struct qeth_card *card = (struct qeth_card *)dev->priv;
5993
5994         if (data) {
5995                 if (card->options.large_send != QETH_LARGE_SEND_NO)
5996                         dev->features |= NETIF_F_SG;
5997                 else {
5998                         dev->features &= ~NETIF_F_SG;
5999                         return -EINVAL;
6000                 }
6001         } else
6002                 dev->features &= ~NETIF_F_SG;
6003         return 0;
6004 }
6005
6006 static u32
6007 qeth_ethtool_get_tso(struct net_device *dev)
6008 {
6009         struct qeth_card *card = (struct qeth_card *)dev->priv;
6010
6011         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6012                 (dev->features & NETIF_F_TSO));
6013 }
6014
6015 static int
6016 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6017 {
6018         struct qeth_card *card = (struct qeth_card *)dev->priv;
6019
6020         if (data) {
6021                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6022                         dev->features |= NETIF_F_TSO;
6023                 else {
6024                         dev->features &= ~NETIF_F_TSO;
6025                         return -EINVAL;
6026                 }
6027         } else
6028                 dev->features &= ~NETIF_F_TSO;
6029         return 0;
6030 }
6031
6032 static struct etht