]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/s390/net/qeth_main.c
git://bbs.cooldavid.org / net-next-2.6.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
[PATCH] AMD Au1xx0: fix Ethernet TX stats
[net-next-2.6.git] / drivers / s390 / net / qeth_main.c
CommitLineData
1da177e4 1/*
e018ba1f 2 * linux/drivers/s390/net/qeth_main.c
1da177e4
LT		 3 *
4 * Linux on zSeries OSA Express and HiperSockets support
5 *
6 * Copyright 2000,2003 IBM Corporation
7 *
8 * Author(s): Original Code written by
9 * Utz Bacher (utz.bacher@de.ibm.com)
10 * Rewritten by
1387780f 11 * Frank Pavlic (fpavlic@de.ibm.com) and
1da177e4
LT		 12 * Thomas Spatzier <tspat@de.ibm.com>
13 *
1da177e4
LT		 14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
1da177e4
LT		 29
30#include <linux/config.h>
31#include <linux/module.h>
32#include <linux/moduleparam.h>
33#include <linux/string.h>
34#include <linux/errno.h>
35#include <linux/mm.h>
36#include <linux/ip.h>
37#include <linux/inetdevice.h>
38#include <linux/netdevice.h>
39#include <linux/sched.h>
40#include <linux/workqueue.h>
41#include <linux/kernel.h>
42#include <linux/slab.h>
43#include <linux/interrupt.h>
44#include <linux/tcp.h>
45#include <linux/icmp.h>
46#include <linux/skbuff.h>
47#include <linux/in.h>
48#include <linux/igmp.h>
49#include <linux/init.h>
50#include <linux/reboot.h>
51#include <linux/mii.h>
52#include <linux/rcupdate.h>
53#include <linux/ethtool.h>
54
55#include <net/arp.h>
56#include <net/ip.h>
57#include <net/route.h>
58
59#include <asm/ebcdic.h>
60#include <asm/io.h>
61#include <asm/qeth.h>
62#include <asm/timex.h>
63#include <asm/semaphore.h>
64#include <asm/uaccess.h>
cfb1b555 65#include <asm/s390_rdev.h>
1da177e4
LT		 66
67#include "qeth.h"
68#include "qeth_mpc.h"
69#include "qeth_fs.h"
70#include "qeth_eddp.h"
71#include "qeth_tso.h"
72
1da177e4
LT		 73static const char *version = "qeth S/390 OSA-Express driver";
74
75/**
76 * Debug Facility Stuff
77 */
78static debug_info_t *qeth_dbf_setup = NULL;
79static debug_info_t *qeth_dbf_data = NULL;
80static debug_info_t *qeth_dbf_misc = NULL;
81static debug_info_t *qeth_dbf_control = NULL;
82debug_info_t *qeth_dbf_trace = NULL;
83static debug_info_t *qeth_dbf_sense = NULL;
84static debug_info_t *qeth_dbf_qerr = NULL;
85
86DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
87
88/**
89 * some more definitions and declarations
90 */
91static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
92
93/* list of our cards */
94struct qeth_card_list_struct qeth_card_list;
95/*process list want to be notified*/
96spinlock_t qeth_notify_lock;
97struct list_head qeth_notify_list;
98
99static void qeth_send_control_data_cb(struct qeth_channel *,
100 struct qeth_cmd_buffer *);
101
102/**
103 * here we go with function implementation
104 */
105static void
106qeth_init_qdio_info(struct qeth_card *card);
107
108static int
109qeth_init_qdio_queues(struct qeth_card *card);
110
111static int
112qeth_alloc_qdio_buffers(struct qeth_card *card);
113
114static void
115qeth_free_qdio_buffers(struct qeth_card *);
116
117static void
118qeth_clear_qdio_buffers(struct qeth_card *);
119
120static void
121qeth_clear_ip_list(struct qeth_card *, int, int);
122
123static void
124qeth_clear_ipacmd_list(struct qeth_card *);
125
126static int
127qeth_qdio_clear_card(struct qeth_card *, int);
128
129static void
130qeth_clear_working_pool_list(struct qeth_card *);
131
132static void
133qeth_clear_cmd_buffers(struct qeth_channel *);
134
135static int
136qeth_stop(struct net_device *);
137
138static void
139qeth_clear_ipato_list(struct qeth_card *);
140
141static int
142qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
143
144static void
145qeth_irq_tasklet(unsigned long);
146
147static int
148qeth_set_online(struct ccwgroup_device *);
149
05e08a2a
FP		 150static int
151__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
152
1da177e4
LT		 153static struct qeth_ipaddr *
154qeth_get_addr_buffer(enum qeth_prot_versions);
155
156static void
157qeth_set_multicast_list(struct net_device *);
158
6c951b90
FP		 159static void
160qeth_setadp_promisc_mode(struct qeth_card *);
161
1da177e4
LT		 162static void
163qeth_notify_processes(void)
164{
165 /*notify all registered processes */
166 struct qeth_notify_list_struct *n_entry;
167
168 QETH_DBF_TEXT(trace,3,"procnoti");
169 spin_lock(&qeth_notify_lock);
170 list_for_each_entry(n_entry, &qeth_notify_list, list) {
171 send_sig(n_entry->signum, n_entry->task, 1);
172 }
173 spin_unlock(&qeth_notify_lock);
174
175}
176int
177qeth_notifier_unregister(struct task_struct *p)
178{
179 struct qeth_notify_list_struct *n_entry, *tmp;
180
181 QETH_DBF_TEXT(trace, 2, "notunreg");
182 spin_lock(&qeth_notify_lock);
183 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
184 if (n_entry->task == p) {
185 list_del(&n_entry->list);
186 kfree(n_entry);
187 goto out;
188 }
189 }
190out:
191 spin_unlock(&qeth_notify_lock);
192 return 0;
193}
194int
195qeth_notifier_register(struct task_struct *p, int signum)
196{
197 struct qeth_notify_list_struct *n_entry;
198
1da177e4
LT		 199 /*check first if entry already exists*/
200 spin_lock(&qeth_notify_lock);
201 list_for_each_entry(n_entry, &qeth_notify_list, list) {
202 if (n_entry->task == p) {
203 n_entry->signum = signum;
204 spin_unlock(&qeth_notify_lock);
205 return 0;
206 }
207 }
208 spin_unlock(&qeth_notify_lock);
209
210 n_entry = (struct qeth_notify_list_struct *)
211 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
212 if (!n_entry)
213 return -ENOMEM;
214 n_entry->task = p;
215 n_entry->signum = signum;
216 spin_lock(&qeth_notify_lock);
217 list_add(&n_entry->list,&qeth_notify_list);
218 spin_unlock(&qeth_notify_lock);
219 return 0;
220}
221
222
223/**
224 * free channel command buffers
225 */
226static void
227qeth_clean_channel(struct qeth_channel *channel)
228{
229 int cnt;
230
231 QETH_DBF_TEXT(setup, 2, "freech");
232 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
233 kfree(channel->iob[cnt].data);
234}
235
236/**
237 * free card
238 */
239static void
240qeth_free_card(struct qeth_card *card)
241{
242
243 QETH_DBF_TEXT(setup, 2, "freecrd");
244 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
245 qeth_clean_channel(&card->read);
246 qeth_clean_channel(&card->write);
247 if (card->dev)
248 free_netdev(card->dev);
249 qeth_clear_ip_list(card, 0, 0);
250 qeth_clear_ipato_list(card);
251 kfree(card->ip_tbd_list);
252 qeth_free_qdio_buffers(card);
253 kfree(card);
254}
255
256/**
257 * alloc memory for command buffer per channel
258 */
259static int
260qeth_setup_channel(struct qeth_channel *channel)
261{
262 int cnt;
263
264 QETH_DBF_TEXT(setup, 2, "setupch");
265 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
266 channel->iob[cnt].data = (char *)
267 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
268 if (channel->iob[cnt].data == NULL)
269 break;
270 channel->iob[cnt].state = BUF_STATE_FREE;
271 channel->iob[cnt].channel = channel;
272 channel->iob[cnt].callback = qeth_send_control_data_cb;
273 channel->iob[cnt].rc = 0;
274 }
275 if (cnt < QETH_CMD_BUFFER_NO) {
276 while (cnt-- > 0)
277 kfree(channel->iob[cnt].data);
278 return -ENOMEM;
279 }
280 channel->buf_no = 0;
281 channel->io_buf_no = 0;
282 atomic_set(&channel->irq_pending, 0);
283 spin_lock_init(&channel->iob_lock);
284
285 init_waitqueue_head(&channel->wait_q);
286 channel->irq_tasklet.data = (unsigned long) channel;
287 channel->irq_tasklet.func = qeth_irq_tasklet;
288 return 0;
289}
290
291/**
292 * alloc memory for card structure
293 */
294static struct qeth_card *
295qeth_alloc_card(void)
296{
297 struct qeth_card *card;
298
299 QETH_DBF_TEXT(setup, 2, "alloccrd");
300 card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
301 GFP_DMA|GFP_KERNEL);
302 if (!card)
303 return NULL;
304 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
305 memset(card, 0, sizeof(struct qeth_card));
306 if (qeth_setup_channel(&card->read)) {
307 kfree(card);
308 return NULL;
309 }
310 if (qeth_setup_channel(&card->write)) {
311 qeth_clean_channel(&card->read);
312 kfree(card);
313 return NULL;
314 }
315 return card;
316}
317
318static long
319__qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
320{
321 if (!IS_ERR(irb))
322 return 0;
323
324 switch (PTR_ERR(irb)) {
325 case -EIO:
326 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
327 QETH_DBF_TEXT(trace, 2, "ckirberr");
328 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
329 break;
330 case -ETIMEDOUT:
331 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
332 QETH_DBF_TEXT(trace, 2, "ckirberr");
333 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
334 break;
335 default:
336 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
337 cdev->dev.bus_id);
338 QETH_DBF_TEXT(trace, 2, "ckirberr");
339 QETH_DBF_TEXT(trace, 2, " rc???");
340 }
341 return PTR_ERR(irb);
342}
343
344static int
345qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
346{
347 int dstat,cstat;
348 char *sense;
349
350 sense = (char *) irb->ecw;
351 cstat = irb->scsw.cstat;
352 dstat = irb->scsw.dstat;
353
354 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
355 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
356 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
357 QETH_DBF_TEXT(trace,2, "CGENCHK");
358 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
359 cdev->dev.bus_id, dstat, cstat);
360 HEXDUMP16(WARN, "irb: ", irb);
361 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
362 return 1;
363 }
364
365 if (dstat & DEV_STAT_UNIT_CHECK) {
366 if (sense[SENSE_RESETTING_EVENT_BYTE] &
367 SENSE_RESETTING_EVENT_FLAG) {
368 QETH_DBF_TEXT(trace,2,"REVIND");
369 return 1;
370 }
371 if (sense[SENSE_COMMAND_REJECT_BYTE] &
372 SENSE_COMMAND_REJECT_FLAG) {
373 QETH_DBF_TEXT(trace,2,"CMDREJi");
374 return 0;
375 }
376 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
377 QETH_DBF_TEXT(trace,2,"AFFE");
378 return 1;
379 }
380 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
381 QETH_DBF_TEXT(trace,2,"ZEROSEN");
382 return 0;
383 }
384 QETH_DBF_TEXT(trace,2,"DGENCHK");
385 return 1;
386 }
387 return 0;
388}
389static int qeth_issue_next_read(struct qeth_card *);
390
391/**
392 * interrupt handler
393 */
394static void
395qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
396{
397 int rc;
398 int cstat,dstat;
399 struct qeth_cmd_buffer *buffer;
400 struct qeth_channel *channel;
401 struct qeth_card *card;
402
403 QETH_DBF_TEXT(trace,5,"irq");
404
405 if (__qeth_check_irb_error(cdev, irb))
406 return;
407 cstat = irb->scsw.cstat;
408 dstat = irb->scsw.dstat;
409
410 card = CARD_FROM_CDEV(cdev);
411 if (!card)
412 return;
413
414 if (card->read.ccwdev == cdev){
415 channel = &card->read;
416 QETH_DBF_TEXT(trace,5,"read");
417 } else if (card->write.ccwdev == cdev) {
418 channel = &card->write;
419 QETH_DBF_TEXT(trace,5,"write");
420 } else {
421 channel = &card->data;
422 QETH_DBF_TEXT(trace,5,"data");
423 }
424 atomic_set(&channel->irq_pending, 0);
425
426 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
427 channel->state = CH_STATE_STOPPED;
428
429 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
430 channel->state = CH_STATE_HALTED;
431
432 /*let's wake up immediately on data channel*/
433 if ((channel == &card->data) && (intparm != 0))
434 goto out;
435
436 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
437 QETH_DBF_TEXT(trace, 6, "clrchpar");
438 /* we don't have to handle this further */
439 intparm = 0;
440 }
441 if (intparm == QETH_HALT_CHANNEL_PARM) {
442 QETH_DBF_TEXT(trace, 6, "hltchpar");
443 /* we don't have to handle this further */
444 intparm = 0;
445 }
446 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
447 (dstat & DEV_STAT_UNIT_CHECK) ||
448 (cstat)) {
449 if (irb->esw.esw0.erw.cons) {
450 /* TODO: we should make this s390dbf */
451 PRINT_WARN("sense data available on channel %s.\n",
452 CHANNEL_ID(channel));
453 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
454 HEXDUMP16(WARN,"irb: ",irb);
455 HEXDUMP16(WARN,"sense data: ",irb->ecw);
456 }
457 rc = qeth_get_problem(cdev,irb);
458 if (rc) {
459 qeth_schedule_recovery(card);
460 goto out;
461 }
462 }
463
464 if (intparm) {
465 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
466 buffer->state = BUF_STATE_PROCESSED;
467 }
468 if (channel == &card->data)
469 return;
470
471 if (channel == &card->read &&
472 channel->state == CH_STATE_UP)
473 qeth_issue_next_read(card);
474
475 tasklet_schedule(&channel->irq_tasklet);
476 return;
477out:
478 wake_up(&card->wait_q);
479}
480
481/**
482 * tasklet function scheduled from irq handler
483 */
484static void
485qeth_irq_tasklet(unsigned long data)
486{
487 struct qeth_card *card;
488 struct qeth_channel *channel;
489 struct qeth_cmd_buffer *iob;
490 __u8 index;
491
492 QETH_DBF_TEXT(trace,5,"irqtlet");
493 channel = (struct qeth_channel *) data;
494 iob = channel->iob;
495 index = channel->buf_no;
496 card = CARD_FROM_CDEV(channel->ccwdev);
497 while (iob[index].state == BUF_STATE_PROCESSED) {
498 if (iob[index].callback !=NULL) {
499 iob[index].callback(channel,iob + index);
500 }
501 index = (index + 1) % QETH_CMD_BUFFER_NO;
502 }
503 channel->buf_no = index;
504 wake_up(&card->wait_q);
505}
506
05e08a2a 507static int qeth_stop_card(struct qeth_card *, int);
1da177e4
LT		 508
509static int
05e08a2a 510__qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
1da177e4
LT		 511{
512 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
9123e0d7 513 int rc = 0, rc2 = 0, rc3 = 0;
1da177e4
LT		 514 enum qeth_card_states recover_flag;
515
516 QETH_DBF_TEXT(setup, 3, "setoffl");
517 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
4965e97f 518
66cc5d5a
FP		 519 if (card->dev && netif_carrier_ok(card->dev))
520 netif_carrier_off(card->dev);
1da177e4 521 recover_flag = card->state;
05e08a2a 522 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
1da177e4
LT		 523 PRINT_WARN("Stopping card %s interrupted by user!\n",
524 CARD_BUS_ID(card));
525 return -ERESTARTSYS;
526 }
9123e0d7
UB		 527 rc = ccw_device_set_offline(CARD_DDEV(card));
528 rc2 = ccw_device_set_offline(CARD_WDEV(card));
529 rc3 = ccw_device_set_offline(CARD_RDEV(card));
530 if (!rc)
531 rc = (rc2) ? rc2 : rc3;
532 if (rc)
1da177e4 533 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1da177e4
LT		 534 if (recover_flag == CARD_STATE_UP)
535 card->state = CARD_STATE_RECOVER;
536 qeth_notify_processes();
537 return 0;
538}
539
05e08a2a
FP		 540static int
541qeth_set_offline(struct ccwgroup_device *cgdev)
542{
543 return __qeth_set_offline(cgdev, 0);
544}
545
1da177e4
LT		 546static int
547qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
548
549
550static void
551qeth_remove_device(struct ccwgroup_device *cgdev)
552{
553 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
554 unsigned long flags;
555
556 QETH_DBF_TEXT(setup, 3, "rmdev");
557 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
558
559 if (!card)
560 return;
561
562 if (qeth_wait_for_threads(card, 0xffffffff))
563 return;
564
565 if (cgdev->state == CCWGROUP_ONLINE){
566 card->use_hard_stop = 1;
567 qeth_set_offline(cgdev);
568 }
569 /* remove form our internal list */
570 write_lock_irqsave(&qeth_card_list.rwlock, flags);
571 list_del(&card->list);
572 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
573 if (card->dev)
574 unregister_netdev(card->dev);
575 qeth_remove_device_attributes(&cgdev->dev);
576 qeth_free_card(card);
577 cgdev->dev.driver_data = NULL;
578 put_device(&cgdev->dev);
579}
580
581static int
582qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
583static int
584qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
585
586/**
587 * Add/remove address to/from card's ip list, i.e. try to add or remove
588 * reference to/from an IP address that is already registered on the card.
589 * Returns:
590 * 0 address was on card and its reference count has been adjusted,
591 * but is still > 0, so nothing has to be done
592 * also returns 0 if card was not on card and the todo was to delete
593 * the address -> there is also nothing to be done
594 * 1 address was not on card and the todo is to add it to the card's ip
595 * list
596 * -1 address was on card and its reference count has been decremented
597 * to <= 0 by the todo -> address must be removed from card
598 */
599static int
600__qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
601 struct qeth_ipaddr **__addr)
602{
603 struct qeth_ipaddr *addr;
604 int found = 0;
605
606 list_for_each_entry(addr, &card->ip_list, entry) {
6c88ad2d
FP		 607 if (card->options.layer2) {
608 if ((addr->type == todo->type) &&
609 (memcmp(&addr->mac, &todo->mac,
610 OSA_ADDR_LEN) == 0)) {
611 found = 1;
612 break;
613 }
614 continue;
615 }
1da177e4
LT		 616 if ((addr->proto == QETH_PROT_IPV4) &&
617 (todo->proto == QETH_PROT_IPV4) &&
618 (addr->type == todo->type) &&
619 (addr->u.a4.addr == todo->u.a4.addr) &&
6c88ad2d 620 (addr->u.a4.mask == todo->u.a4.mask)) {
1da177e4
LT		 621 found = 1;
622 break;
623 }
624 if ((addr->proto == QETH_PROT_IPV6) &&
625 (todo->proto == QETH_PROT_IPV6) &&
626 (addr->type == todo->type) &&
627 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
628 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
6c88ad2d 629 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 630 found = 1;
631 break;
632 }
633 }
6c88ad2d 634 if (found) {
1da177e4
LT		 635 addr->users += todo->users;
636 if (addr->users <= 0){
637 *__addr = addr;
638 return -1;
639 } else {
640 /* for VIPA and RXIP limit refcount to 1 */
641 if (addr->type != QETH_IP_TYPE_NORMAL)
642 addr->users = 1;
643 return 0;
644 }
645 }
6c88ad2d 646 if (todo->users > 0) {
1da177e4
LT		 647 /* for VIPA and RXIP limit refcount to 1 */
648 if (todo->type != QETH_IP_TYPE_NORMAL)
649 todo->users = 1;
650 return 1;
651 } else
652 return 0;
653}
654
655static inline int
656__qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
657 int same_type)
658{
659 struct qeth_ipaddr *tmp;
660
661 list_for_each_entry(tmp, list, entry) {
662 if ((tmp->proto == QETH_PROT_IPV4) &&
663 (addr->proto == QETH_PROT_IPV4) &&
664 ((same_type && (tmp->type == addr->type)) ||
665 (!same_type && (tmp->type != addr->type)) ) &&
666 (tmp->u.a4.addr == addr->u.a4.addr) ){
667 return 1;
668 }
669 if ((tmp->proto == QETH_PROT_IPV6) &&
670 (addr->proto == QETH_PROT_IPV6) &&
671 ((same_type && (tmp->type == addr->type)) ||
672 (!same_type && (tmp->type != addr->type)) ) &&
673 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
674 sizeof(struct in6_addr)) == 0) ) {
675 return 1;
676 }
677 }
678 return 0;
679}
680
681/*
682 * Add IP to be added to todo list. If there is already an "add todo"
683 * in this list we just incremenent the reference count.
684 * Returns 0 if we just incremented reference count.
685 */
686static int
687__qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
688{
689 struct qeth_ipaddr *tmp, *t;
690 int found = 0;
691
692 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
693 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
694 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
695 return 0;
6c88ad2d
FP		 696 if (card->options.layer2) {
697 if ((tmp->type == addr->type) &&
698 (tmp->is_multicast == addr->is_multicast) &&
699 (memcmp(&tmp->mac, &addr->mac,
700 OSA_ADDR_LEN) == 0)) {
701 found = 1;
702 break;
703 }
704 continue;
705 }
1da177e4
LT		 706 if ((tmp->proto == QETH_PROT_IPV4) &&
707 (addr->proto == QETH_PROT_IPV4) &&
708 (tmp->type == addr->type) &&
709 (tmp->is_multicast == addr->is_multicast) &&
710 (tmp->u.a4.addr == addr->u.a4.addr) &&
6c88ad2d 711 (tmp->u.a4.mask == addr->u.a4.mask)) {
1da177e4
LT		 712 found = 1;
713 break;
714 }
715 if ((tmp->proto == QETH_PROT_IPV6) &&
716 (addr->proto == QETH_PROT_IPV6) &&
717 (tmp->type == addr->type) &&
718 (tmp->is_multicast == addr->is_multicast) &&
719 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
720 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
6c88ad2d 721 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 722 found = 1;
723 break;
724 }
725 }
726 if (found){
727 if (addr->users != 0)
728 tmp->users += addr->users;
729 else
730 tmp->users += add? 1:-1;
6c88ad2d 731 if (tmp->users == 0) {
1da177e4
LT		 732 list_del(&tmp->entry);
733 kfree(tmp);
734 }
735 return 0;
736 } else {
737 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
738 list_add(&addr->entry, card->ip_tbd_list);
739 else {
740 if (addr->users == 0)
741 addr->users += add? 1:-1;
742 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
743 qeth_is_addr_covered_by_ipato(card, addr)){
744 QETH_DBF_TEXT(trace, 2, "tkovaddr");
745 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
746 }
747 list_add_tail(&addr->entry, card->ip_tbd_list);
748 }
749 return 1;
750 }
751}
752
753/**
754 * Remove IP address from list
755 */
756static int
757qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
758{
759 unsigned long flags;
760 int rc = 0;
761
6c88ad2d
FP		 762 QETH_DBF_TEXT(trace, 4, "delip");
763
764 if (card->options.layer2)
765 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
766 else if (addr->proto == QETH_PROT_IPV4)
767 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 768 else {
6c88ad2d
FP		 769 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
770 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 771 }
772 spin_lock_irqsave(&card->ip_lock, flags);
773 rc = __qeth_insert_ip_todo(card, addr, 0);
774 spin_unlock_irqrestore(&card->ip_lock, flags);
775 return rc;
776}
777
778static int
779qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
780{
781 unsigned long flags;
782 int rc = 0;
783
6c88ad2d
FP		 784 QETH_DBF_TEXT(trace, 4, "addip");
785 if (card->options.layer2)
786 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
787 else if (addr->proto == QETH_PROT_IPV4)
788 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 789 else {
6c88ad2d
FP		 790 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
791 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 792 }
793 spin_lock_irqsave(&card->ip_lock, flags);
794 rc = __qeth_insert_ip_todo(card, addr, 1);
795 spin_unlock_irqrestore(&card->ip_lock, flags);
796 return rc;
797}
798
799static inline void
800__qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
801{
802 struct qeth_ipaddr *addr, *tmp;
803 int rc;
d805d7c6 804again:
1da177e4
LT		 805 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
806 if (addr->is_multicast) {
807 spin_unlock_irqrestore(&card->ip_lock, *flags);
808 rc = qeth_deregister_addr_entry(card, addr);
809 spin_lock_irqsave(&card->ip_lock, *flags);
810 if (!rc) {
811 list_del(&addr->entry);
812 kfree(addr);
d805d7c6 813 goto again;
1da177e4
LT		 814 }
815 }
816 }
817}
818
819static void
820qeth_set_ip_addr_list(struct qeth_card *card)
821{
822 struct list_head *tbd_list;
823 struct qeth_ipaddr *todo, *addr;
824 unsigned long flags;
825 int rc;
826
827 QETH_DBF_TEXT(trace, 2, "sdiplist");
828 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
829
830 spin_lock_irqsave(&card->ip_lock, flags);
831 tbd_list = card->ip_tbd_list;
832 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
833 if (!card->ip_tbd_list) {
834 QETH_DBF_TEXT(trace, 0, "silnomem");
835 card->ip_tbd_list = tbd_list;
836 spin_unlock_irqrestore(&card->ip_lock, flags);
837 return;
838 } else
839 INIT_LIST_HEAD(card->ip_tbd_list);
840
841 while (!list_empty(tbd_list)){
842 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
843 list_del(&todo->entry);
844 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
845 __qeth_delete_all_mc(card, &flags);
846 kfree(todo);
847 continue;
848 }
849 rc = __qeth_ref_ip_on_card(card, todo, &addr);
850 if (rc == 0) {
851 /* nothing to be done; only adjusted refcount */
852 kfree(todo);
853 } else if (rc == 1) {
854 /* new entry to be added to on-card list */
855 spin_unlock_irqrestore(&card->ip_lock, flags);
856 rc = qeth_register_addr_entry(card, todo);
857 spin_lock_irqsave(&card->ip_lock, flags);
858 if (!rc)
859 list_add_tail(&todo->entry, &card->ip_list);
860 else
861 kfree(todo);
862 } else if (rc == -1) {
863 /* on-card entry to be removed */
864 list_del_init(&addr->entry);
865 spin_unlock_irqrestore(&card->ip_lock, flags);
866 rc = qeth_deregister_addr_entry(card, addr);
867 spin_lock_irqsave(&card->ip_lock, flags);
868 if (!rc)
869 kfree(addr);
870 else
871 list_add_tail(&addr->entry, &card->ip_list);
872 kfree(todo);
873 }
874 }
875 spin_unlock_irqrestore(&card->ip_lock, flags);
876 kfree(tbd_list);
877}
878
879static void qeth_delete_mc_addresses(struct qeth_card *);
880static void qeth_add_multicast_ipv4(struct qeth_card *);
6c88ad2d 881static void qeth_layer2_add_multicast(struct qeth_card *);
1da177e4
LT		 882#ifdef CONFIG_QETH_IPV6
883static void qeth_add_multicast_ipv6(struct qeth_card *);
884#endif
885
886static inline int
887qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
888{
889 unsigned long flags;
890
891 spin_lock_irqsave(&card->thread_mask_lock, flags);
892 if ( !(card->thread_allowed_mask & thread) ||
893 (card->thread_start_mask & thread) ) {
894 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
895 return -EPERM;
896 }
897 card->thread_start_mask |= thread;
898 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
899 return 0;
900}
901
902static void
903qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
904{
905 unsigned long flags;
906
907 spin_lock_irqsave(&card->thread_mask_lock, flags);
908 card->thread_start_mask &= ~thread;
909 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
910 wake_up(&card->wait_q);
911}
912
913static void
914qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
915{
916 unsigned long flags;
917
918 spin_lock_irqsave(&card->thread_mask_lock, flags);
919 card->thread_running_mask &= ~thread;
920 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
921 wake_up(&card->wait_q);
922}
923
924static inline int
925__qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
926{
927 unsigned long flags;
928 int rc = 0;
929
930 spin_lock_irqsave(&card->thread_mask_lock, flags);
931 if (card->thread_start_mask & thread){
932 if ((card->thread_allowed_mask & thread) &&
933 !(card->thread_running_mask & thread)){
934 rc = 1;
935 card->thread_start_mask &= ~thread;
936 card->thread_running_mask |= thread;
937 } else
938 rc = -EPERM;
939 }
940 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
941 return rc;
942}
943
944static int
945qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
946{
947 int rc = 0;
948
949 wait_event(card->wait_q,
950 (rc = __qeth_do_run_thread(card, thread)) >= 0);
951 return rc;
952}
953
954static int
955qeth_register_ip_addresses(void *ptr)
956{
957 struct qeth_card *card;
958
959 card = (struct qeth_card *) ptr;
960 daemonize("qeth_reg_ip");
961 QETH_DBF_TEXT(trace,4,"regipth1");
962 if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
963 return 0;
964 QETH_DBF_TEXT(trace,4,"regipth2");
965 qeth_set_ip_addr_list(card);
966 qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
967 return 0;
968}
969
6c951b90
FP		 970/*
971 * Drive the SET_PROMISC_MODE thread
972 */
973static int
974qeth_set_promisc_mode(void *ptr)
975{
976 struct qeth_card *card = (struct qeth_card *) ptr;
977
978 daemonize("qeth_setprm");
979 QETH_DBF_TEXT(trace,4,"setprm1");
980 if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
981 return 0;
982 QETH_DBF_TEXT(trace,4,"setprm2");
983 qeth_setadp_promisc_mode(card);
984 qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
985 return 0;
986}
987
1da177e4
LT		 988static int
989qeth_recover(void *ptr)
990{
991 struct qeth_card *card;
992 int rc = 0;
993
994 card = (struct qeth_card *) ptr;
995 daemonize("qeth_recover");
996 QETH_DBF_TEXT(trace,2,"recover1");
997 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
998 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
999 return 0;
1000 QETH_DBF_TEXT(trace,2,"recover2");
1001 PRINT_WARN("Recovery of device %s started ...\n",
1002 CARD_BUS_ID(card));
1003 card->use_hard_stop = 1;
05e08a2a
FP		 1004 __qeth_set_offline(card->gdev,1);
1005 rc = __qeth_set_online(card->gdev,1);
1da177e4
LT		 1006 if (!rc)
1007 PRINT_INFO("Device %s successfully recovered!\n",
1008 CARD_BUS_ID(card));
1009 else
1010 PRINT_INFO("Device %s could not be recovered!\n",
1011 CARD_BUS_ID(card));
1012 /* don't run another scheduled recovery */
1013 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1014 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1015 return 0;
1016}
1017
1018void
1019qeth_schedule_recovery(struct qeth_card *card)
1020{
1021 QETH_DBF_TEXT(trace,2,"startrec");
1da177e4
LT		 1022 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1023 schedule_work(&card->kernel_thread_starter);
1024}
1025
1026static int
1027qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1028{
1029 unsigned long flags;
1030 int rc = 0;
1031
1032 spin_lock_irqsave(&card->thread_mask_lock, flags);
1033 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1034 (u8) card->thread_start_mask,
1035 (u8) card->thread_allowed_mask,
1036 (u8) card->thread_running_mask);
1037 rc = (card->thread_start_mask & thread);
1038 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1039 return rc;
1040}
1041
1042static void
1043qeth_start_kernel_thread(struct qeth_card *card)
1044{
1045 QETH_DBF_TEXT(trace , 2, "strthrd");
1046
1047 if (card->read.state != CH_STATE_UP &&
1048 card->write.state != CH_STATE_UP)
1049 return;
1050
1051 if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1052 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
6c951b90
FP		 1053 if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1054 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1da177e4
LT		 1055 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1056 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1057}
1058
1059
1060static void
1061qeth_set_intial_options(struct qeth_card *card)
1062{
1063 card->options.route4.type = NO_ROUTER;
1064#ifdef CONFIG_QETH_IPV6
1065 card->options.route6.type = NO_ROUTER;
1066#endif /* QETH_IPV6 */
1067 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1068 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1069 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1070 card->options.fake_broadcast = 0;
1071 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1072 card->options.fake_ll = 0;
500f83ab
UB		 1073 if (card->info.type == QETH_CARD_TYPE_OSN)
1074 card->options.layer2 = 1;
1075 else
1076 card->options.layer2 = 0;
1da177e4
LT		 1077}
1078
1079/**
1080 * initialize channels ,card and all state machines
1081 */
1082static int
1083qeth_setup_card(struct qeth_card *card)
1084{
1085
1086 QETH_DBF_TEXT(setup, 2, "setupcrd");
1087 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1088
1089 card->read.state = CH_STATE_DOWN;
1090 card->write.state = CH_STATE_DOWN;
1091 card->data.state = CH_STATE_DOWN;
1092 card->state = CARD_STATE_DOWN;
1093 card->lan_online = 0;
1094 card->use_hard_stop = 0;
1095 card->dev = NULL;
1096#ifdef CONFIG_QETH_VLAN
1097 spin_lock_init(&card->vlanlock);
1098 card->vlangrp = NULL;
1099#endif
9123e0d7 1100 spin_lock_init(&card->lock);
1da177e4
LT		 1101 spin_lock_init(&card->ip_lock);
1102 spin_lock_init(&card->thread_mask_lock);
1103 card->thread_start_mask = 0;
1104 card->thread_allowed_mask = 0;
1105 card->thread_running_mask = 0;
1106 INIT_WORK(&card->kernel_thread_starter,
1107 (void *)qeth_start_kernel_thread,card);
1108 INIT_LIST_HEAD(&card->ip_list);
1109 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1110 if (!card->ip_tbd_list) {
1111 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1112 return -ENOMEM;
1113 }
1114 INIT_LIST_HEAD(card->ip_tbd_list);
1115 INIT_LIST_HEAD(&card->cmd_waiter_list);
1116 init_waitqueue_head(&card->wait_q);
1117 /* intial options */
1118 qeth_set_intial_options(card);
1119 /* IP address takeover */
1120 INIT_LIST_HEAD(&card->ipato.entries);
1121 card->ipato.enabled = 0;
1122 card->ipato.invert4 = 0;
1123 card->ipato.invert6 = 0;
1124 /* init QDIO stuff */
1125 qeth_init_qdio_info(card);
1126 return 0;
1127}
1128
1129static int
1130is_1920_device (struct qeth_card *card)
1131{
1132 int single_queue = 0;
1133 struct ccw_device *ccwdev;
1134 struct channelPath_dsc {
1135 u8 flags;
1136 u8 lsn;
1137 u8 desc;
1138 u8 chpid;
1139 u8 swla;
1140 u8 zeroes;
1141 u8 chla;
1142 u8 chpp;
1143 } *chp_dsc;
1144
1145 QETH_DBF_TEXT(setup, 2, "chk_1920");
1146
1147 ccwdev = card->data.ccwdev;
1148 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1149 if (chp_dsc != NULL) {
1150 /* CHPP field bit 6 == 1 -> single queue */
1151 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1152 kfree(chp_dsc);
1153 }
1154 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1155 return single_queue;
1156}
1157
1158static int
1159qeth_determine_card_type(struct qeth_card *card)
1160{
1161 int i = 0;
1162
1163 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1164
500f83ab
UB		 1165 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1166 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1da177e4
LT		 1167 while (known_devices[i][4]) {
1168 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1169 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1170 card->info.type = known_devices[i][4];
500f83ab
UB		 1171 card->qdio.no_out_queues = known_devices[i][8];
1172 card->info.is_multicast_different = known_devices[i][9];
1da177e4
LT		 1173 if (is_1920_device(card)) {
1174 PRINT_INFO("Priority Queueing not able "
1175 "due to hardware limitations!\n");
1176 card->qdio.no_out_queues = 1;
1177 card->qdio.default_out_queue = 0;
500f83ab 1178 }
1da177e4
LT		 1179 return 0;
1180 }
1181 i++;
1182 }
1183 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1184 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1185 return -ENOENT;
1186}
1187
1188static int
1189qeth_probe_device(struct ccwgroup_device *gdev)
1190{
1191 struct qeth_card *card;
1192 struct device *dev;
1193 unsigned long flags;
1194 int rc;
1195
1196 QETH_DBF_TEXT(setup, 2, "probedev");
1197
1198 dev = &gdev->dev;
1199 if (!get_device(dev))
1200 return -ENODEV;
1201
500f83ab
UB		 1202 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1203
1da177e4
LT		 1204 card = qeth_alloc_card();
1205 if (!card) {
1206 put_device(dev);
1207 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1208 return -ENOMEM;
1209 }
1210 card->read.ccwdev = gdev->cdev[0];
1211 card->write.ccwdev = gdev->cdev[1];
1212 card->data.ccwdev = gdev->cdev[2];
1da177e4
LT		 1213 gdev->dev.driver_data = card;
1214 card->gdev = gdev;
1215 gdev->cdev[0]->handler = qeth_irq;
1216 gdev->cdev[1]->handler = qeth_irq;
1217 gdev->cdev[2]->handler = qeth_irq;
1218
500f83ab
UB		 1219 if ((rc = qeth_determine_card_type(card))){
1220 PRINT_WARN("%s: not a valid card type\n", __func__);
1221 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1222 put_device(dev);
1223 qeth_free_card(card);
1224 return rc;
1225 }
1226 if ((rc = qeth_setup_card(card))){
1227 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1da177e4
LT		 1228 put_device(dev);
1229 qeth_free_card(card);
1230 return rc;
1231 }
500f83ab
UB		 1232 rc = qeth_create_device_attributes(dev);
1233 if (rc) {
1da177e4
LT		 1234 put_device(dev);
1235 qeth_free_card(card);
1236 return rc;
1237 }
1238 /* insert into our internal list */
1239 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1240 list_add_tail(&card->list, &qeth_card_list.list);
1241 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1242 return rc;
1243}
1244
1245
1246static int
1247qeth_get_unitaddr(struct qeth_card *card)
1248{
1249 int length;
1250 char *prcd;
1251 int rc;
1252
1253 QETH_DBF_TEXT(setup, 2, "getunit");
1254 rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1255 if (rc) {
1256 PRINT_ERR("read_conf_data for device %s returned %i\n",
1257 CARD_DDEV_ID(card), rc);
1258 return rc;
1259 }
1260 card->info.chpid = prcd[30];
1261 card->info.unit_addr2 = prcd[31];
1262 card->info.cula = prcd[63];
1263 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1264 (prcd[0x11] == _ascebc['M']));
1265 return 0;
1266}
1267
1268static void
1269qeth_init_tokens(struct qeth_card *card)
1270{
1271 card->token.issuer_rm_w = 0x00010103UL;
1272 card->token.cm_filter_w = 0x00010108UL;
1273 card->token.cm_connection_w = 0x0001010aUL;
1274 card->token.ulp_filter_w = 0x0001010bUL;
1275 card->token.ulp_connection_w = 0x0001010dUL;
1276}
1277
1278static inline __u16
1279raw_devno_from_bus_id(char *id)
1280{
1281 id += (strlen(id) - 4);
1282 return (__u16) simple_strtoul(id, &id, 16);
1283}
1284/**
1285 * setup channel
1286 */
1287static void
1288qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1289{
1290 struct qeth_card *card;
1291
1292 QETH_DBF_TEXT(trace, 4, "setupccw");
1293 card = CARD_FROM_CDEV(channel->ccwdev);
1294 if (channel == &card->read)
1295 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1296 else
1297 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1298 channel->ccw.count = len;
1299 channel->ccw.cda = (__u32) __pa(iob);
1300}
1301
1302/**
1303 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1304 */
1305static struct qeth_cmd_buffer *
1306__qeth_get_buffer(struct qeth_channel *channel)
1307{
1308 __u8 index;
1309
1310 QETH_DBF_TEXT(trace, 6, "getbuff");
1311 index = channel->io_buf_no;
1312 do {
1313 if (channel->iob[index].state == BUF_STATE_FREE) {
1314 channel->iob[index].state = BUF_STATE_LOCKED;
1315 channel->io_buf_no = (channel->io_buf_no + 1) %
1316 QETH_CMD_BUFFER_NO;
1317 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1318 return channel->iob + index;
1319 }
1320 index = (index + 1) % QETH_CMD_BUFFER_NO;
1321 } while(index != channel->io_buf_no);
1322
1323 return NULL;
1324}
1325
1326/**
1327 * release command buffer
1328 */
1329static void
1330qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1331{
1332 unsigned long flags;
1333
1334 QETH_DBF_TEXT(trace, 6, "relbuff");
1335 spin_lock_irqsave(&channel->iob_lock, flags);
1336 memset(iob->data, 0, QETH_BUFSIZE);
1337 iob->state = BUF_STATE_FREE;
1338 iob->callback = qeth_send_control_data_cb;
1339 iob->rc = 0;
1340 spin_unlock_irqrestore(&channel->iob_lock, flags);
1341}
1342
1343static struct qeth_cmd_buffer *
1344qeth_get_buffer(struct qeth_channel *channel)
1345{
1346 struct qeth_cmd_buffer *buffer = NULL;
1347 unsigned long flags;
1348
1349 spin_lock_irqsave(&channel->iob_lock, flags);
1350 buffer = __qeth_get_buffer(channel);
1351 spin_unlock_irqrestore(&channel->iob_lock, flags);
1352 return buffer;
1353}
1354
1355static struct qeth_cmd_buffer *
1356qeth_wait_for_buffer(struct qeth_channel *channel)
1357{
1358 struct qeth_cmd_buffer *buffer;
1359 wait_event(channel->wait_q,
1360 ((buffer = qeth_get_buffer(channel)) != NULL));
1361 return buffer;
1362}
1363
1364static void
1365qeth_clear_cmd_buffers(struct qeth_channel *channel)
1366{
1367 int cnt = 0;
1368
1369 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1370 qeth_release_buffer(channel,&channel->iob[cnt]);
1371 channel->buf_no = 0;
1372 channel->io_buf_no = 0;
1373}
1374
1375/**
1376 * start IDX for read and write channel
1377 */
1378static int
1379qeth_idx_activate_get_answer(struct qeth_channel *channel,
1380 void (*idx_reply_cb)(struct qeth_channel *,
1381 struct qeth_cmd_buffer *))
1382{
1383 struct qeth_cmd_buffer *iob;
1384 unsigned long flags;
1385 int rc;
1386 struct qeth_card *card;
1387
1388 QETH_DBF_TEXT(setup, 2, "idxanswr");
1389 card = CARD_FROM_CDEV(channel->ccwdev);
1390 iob = qeth_get_buffer(channel);
1391 iob->callback = idx_reply_cb;
1392 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1393 channel->ccw.count = QETH_BUFSIZE;
1394 channel->ccw.cda = (__u32) __pa(iob->data);
1395
1396 wait_event(card->wait_q,
973bd993 1397 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1da177e4
LT		 1398 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1399 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1400 rc = ccw_device_start(channel->ccwdev,
1401 &channel->ccw,(addr_t) iob, 0, 0);
1402 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1403
1404 if (rc) {
1405 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1406 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1407 atomic_set(&channel->irq_pending, 0);
1408 wake_up(&card->wait_q);
1409 return rc;
1410 }
1411 rc = wait_event_interruptible_timeout(card->wait_q,
1412 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1413 if (rc == -ERESTARTSYS)
1414 return rc;
1415 if (channel->state != CH_STATE_UP){
1416 rc = -ETIME;
1417 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1418 qeth_clear_cmd_buffers(channel);
1419 } else
1420 rc = 0;
1421 return rc;
1422}
1423
1424static int
1425qeth_idx_activate_channel(struct qeth_channel *channel,
1426 void (*idx_reply_cb)(struct qeth_channel *,
1427 struct qeth_cmd_buffer *))
1428{
1429 struct qeth_card *card;
1430 struct qeth_cmd_buffer *iob;
1431 unsigned long flags;
1432 __u16 temp;
1433 int rc;
1434
1435 card = CARD_FROM_CDEV(channel->ccwdev);
1436
1437 QETH_DBF_TEXT(setup, 2, "idxactch");
1438
1439 iob = qeth_get_buffer(channel);
1440 iob->callback = idx_reply_cb;
1441 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1442 channel->ccw.count = IDX_ACTIVATE_SIZE;
1443 channel->ccw.cda = (__u32) __pa(iob->data);
1444 if (channel == &card->write) {
1445 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1446 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1447 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1448 card->seqno.trans_hdr++;
1449 } else {
1450 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1451 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1452 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1453 }
1454 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1455 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1456 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1457 &card->info.func_level,sizeof(__u16));
1458 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1459 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1460 temp = (card->info.cula << 8) + card->info.unit_addr2;
1461 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1462
1463 wait_event(card->wait_q,
973bd993 1464 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1da177e4
LT		 1465 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1466 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1467 rc = ccw_device_start(channel->ccwdev,
1468 &channel->ccw,(addr_t) iob, 0, 0);
1469 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1470
1471 if (rc) {
1472 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1473 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1474 atomic_set(&channel->irq_pending, 0);
1475 wake_up(&card->wait_q);
1476 return rc;
1477 }
1478 rc = wait_event_interruptible_timeout(card->wait_q,
1479 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1480 if (rc == -ERESTARTSYS)
1481 return rc;
1482 if (channel->state != CH_STATE_ACTIVATING) {
1483 PRINT_WARN("qeth: IDX activate timed out!\n");
1484 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1485 qeth_clear_cmd_buffers(channel);
1486 return -ETIME;
1487 }
1488 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1489}
1490
1491static int
1492qeth_peer_func_level(int level)
1493{
1494 if ((level & 0xff) == 8)
1495 return (level & 0xff) + 0x400;
1496 if (((level >> 8) & 3) == 1)
1497 return (level & 0xff) + 0x200;
1498 return level;
1499}
1500
1501static void
1502qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1503{
1504 struct qeth_card *card;
1505 __u16 temp;
1506
1507 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1508
1509 if (channel->state == CH_STATE_DOWN) {
1510 channel->state = CH_STATE_ACTIVATING;
1511 goto out;
1512 }
1513 card = CARD_FROM_CDEV(channel->ccwdev);
1514
1515 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1516 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1517 "reply\n", CARD_WDEV_ID(card));
1518 goto out;
1519 }
1520 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1521 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1522 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1523 "function level mismatch "
1524 "(sent: 0x%x, received: 0x%x)\n",
1525 CARD_WDEV_ID(card), card->info.func_level, temp);
1526 goto out;
1527 }
1528 channel->state = CH_STATE_UP;
1529out:
1530 qeth_release_buffer(channel, iob);
1531}
1532
1533static int
1534qeth_check_idx_response(unsigned char *buffer)
1535{
1536 if (!buffer)
1537 return 0;
1538
1539 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1540 if ((buffer[2] & 0xc0) == 0xc0) {
1541 PRINT_WARN("received an IDX TERMINATE "
1542 "with cause code 0x%02x%s\n",
1543 buffer[4],
1544 ((buffer[4] == 0x22) ?
1545 " -- try another portname" : ""));
1546 QETH_DBF_TEXT(trace, 2, "ckidxres");
1547 QETH_DBF_TEXT(trace, 2, " idxterm");
1548 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1549 return -EIO;
1550 }
1551 return 0;
1552}
1553
1554static void
1555qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1556{
1557 struct qeth_card *card;
1558 __u16 temp;
1559
1560 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1561 if (channel->state == CH_STATE_DOWN) {
1562 channel->state = CH_STATE_ACTIVATING;
1563 goto out;
1564 }
1565
1566 card = CARD_FROM_CDEV(channel->ccwdev);
1567 if (qeth_check_idx_response(iob->data)) {
1568 goto out;
1569 }
1570 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1571 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1572 "reply\n", CARD_RDEV_ID(card));
1573 goto out;
1574 }
1575
1576/**
1577 * temporary fix for microcode bug
1578 * to revert it,replace OR by AND
1579 */
1580 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1581 (card->info.type == QETH_CARD_TYPE_OSAE) )
1582 card->info.portname_required = 1;
1583
1584 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1585 if (temp != qeth_peer_func_level(card->info.func_level)) {
1586 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1587 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1588 CARD_RDEV_ID(card), card->info.func_level, temp);
1589 goto out;
1590 }
1591 memcpy(&card->token.issuer_rm_r,
1592 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1593 QETH_MPC_TOKEN_LENGTH);
1594 memcpy(&card->info.mcl_level[0],
1595 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1596 channel->state = CH_STATE_UP;
1597out:
1598 qeth_release_buffer(channel,iob);
1599}
1600
1601static int
1602qeth_issue_next_read(struct qeth_card *card)
1603{
1604 int rc;
1605 struct qeth_cmd_buffer *iob;
1606
1607 QETH_DBF_TEXT(trace,5,"issnxrd");
1608 if (card->read.state != CH_STATE_UP)
1609 return -EIO;
1610 iob = qeth_get_buffer(&card->read);
1611 if (!iob) {
1612 PRINT_WARN("issue_next_read failed: no iob available!\n");
1613 return -ENOMEM;
1614 }
1615 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1616 wait_event(card->wait_q,
973bd993 1617 atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1da177e4
LT		 1618 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1619 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1620 (addr_t) iob, 0, 0);
1621 if (rc) {
1622 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1623 atomic_set(&card->read.irq_pending, 0);
1624 qeth_schedule_recovery(card);
1625 wake_up(&card->wait_q);
1626 }
1627 return rc;
1628}
1629
1630static struct qeth_reply *
1631qeth_alloc_reply(struct qeth_card *card)
1632{
1633 struct qeth_reply *reply;
1634
1635 reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1636 if (reply){
1637 memset(reply, 0, sizeof(struct qeth_reply));
1638 atomic_set(&reply->refcnt, 1);
1639 reply->card = card;
1640 };
1641 return reply;
1642}
1643
1644static void
1645qeth_get_reply(struct qeth_reply *reply)
1646{
1647 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1648 atomic_inc(&reply->refcnt);
1649}
1650
1651static void
1652qeth_put_reply(struct qeth_reply *reply)
1653{
1654 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1655 if (atomic_dec_and_test(&reply->refcnt))
1656 kfree(reply);
1657}
1658
1659static void
1660qeth_cmd_timeout(unsigned long data)
1661{
1662 struct qeth_reply *reply, *list_reply, *r;
1663 unsigned long flags;
1664
1665 reply = (struct qeth_reply *) data;
1666 spin_lock_irqsave(&reply->card->lock, flags);
1667 list_for_each_entry_safe(list_reply, r,
1668 &reply->card->cmd_waiter_list, list) {
1669 if (reply == list_reply){
1670 qeth_get_reply(reply);
1671 list_del_init(&reply->list);
1672 spin_unlock_irqrestore(&reply->card->lock, flags);
1673 reply->rc = -ETIME;
1674 reply->received = 1;
1675 wake_up(&reply->wait_q);
1676 qeth_put_reply(reply);
1677 return;
1678 }
1679 }
1680 spin_unlock_irqrestore(&reply->card->lock, flags);
1681}
1682
66cc5d5a 1683
1da177e4
LT		 1684static struct qeth_ipa_cmd *
1685qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1686{
1687 struct qeth_ipa_cmd *cmd = NULL;
1688
1689 QETH_DBF_TEXT(trace,5,"chkipad");
1690 if (IS_IPA(iob->data)){
1691 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1692 if (IS_IPA_REPLY(cmd))
1693 return cmd;
1694 else {
1695 switch (cmd->hdr.command) {
1696 case IPA_CMD_STOPLAN:
1697 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1698 "there is a network problem or "
1699 "someone pulled the cable or "
1700 "disabled the port.\n",
1701 QETH_CARD_IFNAME(card),
1702 card->info.chpid);
1703 card->lan_online = 0;
66cc5d5a
FP		 1704 if (card->dev && netif_carrier_ok(card->dev))
1705 netif_carrier_off(card->dev);
1da177e4
LT		 1706 return NULL;
1707 case IPA_CMD_STARTLAN:
1708 PRINT_INFO("Link reestablished on %s "
1709 "(CHPID 0x%X). Scheduling "
1710 "IP address reset.\n",
1711 QETH_CARD_IFNAME(card),
1712 card->info.chpid);
9123e0d7 1713 qeth_schedule_recovery(card);
1da177e4 1714 return NULL;
500f83ab
UB		 1715 case IPA_CMD_MODCCID:
1716 return cmd;
1da177e4
LT		 1717 case IPA_CMD_REGISTER_LOCAL_ADDR:
1718 QETH_DBF_TEXT(trace,3, "irla");
1719 break;
1720 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1721 QETH_DBF_TEXT(trace,3, "urla");
1722 break;
1723 default:
1724 PRINT_WARN("Received data is IPA "
1725 "but not a reply!\n");
1726 break;
1727 }
1728 }
1729 }
1730 return cmd;
1731}
1732
1733/**
1734 * wake all waiting ipa commands
1735 */
1736static void
1737qeth_clear_ipacmd_list(struct qeth_card *card)
1738{
1739 struct qeth_reply *reply, *r;
1740 unsigned long flags;
1741
1742 QETH_DBF_TEXT(trace, 4, "clipalst");
1743
1744 spin_lock_irqsave(&card->lock, flags);
1745 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1746 qeth_get_reply(reply);
1747 reply->rc = -EIO;
1748 reply->received = 1;
1749 list_del_init(&reply->list);
1750 wake_up(&reply->wait_q);
1751 qeth_put_reply(reply);
1752 }
1753 spin_unlock_irqrestore(&card->lock, flags);
1754}
1755
1756static void
1757qeth_send_control_data_cb(struct qeth_channel *channel,
1758 struct qeth_cmd_buffer *iob)
1759{
1760 struct qeth_card *card;
1761 struct qeth_reply *reply, *r;
1762 struct qeth_ipa_cmd *cmd;
1763 unsigned long flags;
1764 int keep_reply;
1765
1766 QETH_DBF_TEXT(trace,4,"sndctlcb");
1767
1768 card = CARD_FROM_CDEV(channel->ccwdev);
1769 if (qeth_check_idx_response(iob->data)) {
1770 qeth_clear_ipacmd_list(card);
1771 qeth_schedule_recovery(card);
1772 goto out;
1773 }
1774
1775 cmd = qeth_check_ipa_data(card, iob);
1776 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1777 goto out;
500f83ab
UB		 1778 /*in case of OSN : check if cmd is set */
1779 if (card->info.type == QETH_CARD_TYPE_OSN &&
1780 cmd &&
1781 cmd->hdr.command != IPA_CMD_STARTLAN &&
1782 card->osn_info.assist_cb != NULL) {
1783 card->osn_info.assist_cb(card->dev, cmd);
1784 goto out;
1785 }
1da177e4
LT		 1786
1787 spin_lock_irqsave(&card->lock, flags);
1788 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1789 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1790 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1791 qeth_get_reply(reply);
1792 list_del_init(&reply->list);
1793 spin_unlock_irqrestore(&card->lock, flags);
1794 keep_reply = 0;
1795 if (reply->callback != NULL) {
1796 if (cmd) {
1797 reply->offset = (__u16)((char*)cmd -
1798 (char *)iob->data);
1799 keep_reply = reply->callback(card,
1800 reply,
1801 (unsigned long)cmd);
500f83ab 1802 } else
1da177e4
LT		 1803 keep_reply = reply->callback(card,
1804 reply,
1805 (unsigned long)iob);
1806 }
1807 if (cmd)
1808 reply->rc = (u16) cmd->hdr.return_code;
1809 else if (iob->rc)
1810 reply->rc = iob->rc;
1811 if (keep_reply) {
1812 spin_lock_irqsave(&card->lock, flags);
1813 list_add_tail(&reply->list,
1814 &card->cmd_waiter_list);
1815 spin_unlock_irqrestore(&card->lock, flags);
1816 } else {
1817 reply->received = 1;
1818 wake_up(&reply->wait_q);
1819 }
1820 qeth_put_reply(reply);
1821 goto out;
1822 }
1823 }
1824 spin_unlock_irqrestore(&card->lock, flags);
1825out:
1826 memcpy(&card->seqno.pdu_hdr_ack,
1827 QETH_PDU_HEADER_SEQ_NO(iob->data),
1828 QETH_SEQ_NO_LENGTH);
1829 qeth_release_buffer(channel,iob);
1830}
1831
500f83ab
UB		 1832static inline void
1833qeth_prepare_control_data(struct qeth_card *card, int len,
1834struct qeth_cmd_buffer *iob)
1835{
1836 qeth_setup_ccw(&card->write,iob->data,len);
1837 iob->callback = qeth_release_buffer;
1838
1839 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1840 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1841 card->seqno.trans_hdr++;
1842 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1843 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1844 card->seqno.pdu_hdr++;
1845 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1846 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1847 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1848}
1849
1da177e4
LT		 1850static int
1851qeth_send_control_data(struct qeth_card *card, int len,
1852 struct qeth_cmd_buffer *iob,
1853 int (*reply_cb)
1854 (struct qeth_card *, struct qeth_reply*, unsigned long),
1855 void *reply_param)
1856
1857{
1858 int rc;
1859 unsigned long flags;
500f83ab 1860 struct qeth_reply *reply = NULL;
1da177e4
LT		 1861 struct timer_list timer;
1862
1863 QETH_DBF_TEXT(trace, 2, "sendctl");
1864
1da177e4
LT		 1865 reply = qeth_alloc_reply(card);
1866 if (!reply) {
1867 PRINT_WARN("Could no alloc qeth_reply!\n");
1868 return -ENOMEM;
1869 }
1870 reply->callback = reply_cb;
1871 reply->param = reply_param;
1872 if (card->state == CARD_STATE_DOWN)
1873 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1874 else
1875 reply->seqno = card->seqno.ipa++;
1876 init_timer(&timer);
1877 timer.function = qeth_cmd_timeout;
1878 timer.data = (unsigned long) reply;
1da177e4
LT		 1879 init_waitqueue_head(&reply->wait_q);
1880 spin_lock_irqsave(&card->lock, flags);
1881 list_add_tail(&reply->list, &card->cmd_waiter_list);
1882 spin_unlock_irqrestore(&card->lock, flags);
1883 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1884 wait_event(card->wait_q,
973bd993 1885 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
500f83ab
UB		 1886 qeth_prepare_control_data(card, len, iob);
1887 if (IS_IPA(iob->data))
1888 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1889 else
1890 timer.expires = jiffies + QETH_TIMEOUT;
1da177e4
LT		 1891 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1892 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1893 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1894 (addr_t) iob, 0, 0);
1895 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1896 if (rc){
1897 PRINT_WARN("qeth_send_control_data: "
1898 "ccw_device_start rc = %i\n", rc);
1899 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1900 spin_lock_irqsave(&card->lock, flags);
1901 list_del_init(&reply->list);
1902 qeth_put_reply(reply);
1903 spin_unlock_irqrestore(&card->lock, flags);
1904 qeth_release_buffer(iob->channel, iob);
1905 atomic_set(&card->write.irq_pending, 0);
1906 wake_up(&card->wait_q);
1907 return rc;
1908 }
1909 add_timer(&timer);
1910 wait_event(reply->wait_q, reply->received);
1911 del_timer_sync(&timer);
1912 rc = reply->rc;
1913 qeth_put_reply(reply);
1914 return rc;
1915}
1916
500f83ab
UB		 1917static int
1918qeth_osn_send_control_data(struct qeth_card *card, int len,
1919 struct qeth_cmd_buffer *iob)
1920{
1921 unsigned long flags;
1922 int rc = 0;
1923
1924 QETH_DBF_TEXT(trace, 5, "osndctrd");
1925
1926 wait_event(card->wait_q,
973bd993 1927 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
500f83ab
UB		 1928 qeth_prepare_control_data(card, len, iob);
1929 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1930 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1931 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1932 (addr_t) iob, 0, 0);
1933 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1934 if (rc){
1935 PRINT_WARN("qeth_osn_send_control_data: "
1936 "ccw_device_start rc = %i\n", rc);
1937 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1938 qeth_release_buffer(iob->channel, iob);
1939 atomic_set(&card->write.irq_pending, 0);
1940 wake_up(&card->wait_q);
1941 }
1942 return rc;
1943}
1944
1945static inline void
1946qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1947 char prot_type)
1948{
1949 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1950 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1951 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1952 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1953}
1954
1955static int
1956qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1957 int data_len)
1958{
1959 u16 s1, s2;
1960
4965e97f 1961 QETH_DBF_TEXT(trace,4,"osndipa");
500f83ab
UB		 1962
1963 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1964 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1965 s2 = (u16)data_len;
1966 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1967 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1968 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1969 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1970 return qeth_osn_send_control_data(card, s1, iob);
1971}
1972
1da177e4
LT		 1973static int
1974qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1975 int (*reply_cb)
1976 (struct qeth_card *,struct qeth_reply*, unsigned long),
1977 void *reply_param)
1978{
1979 int rc;
1980 char prot_type;
1981
1982 QETH_DBF_TEXT(trace,4,"sendipa");
1983
1da177e4 1984 if (card->options.layer2)
500f83ab
UB		 1985 if (card->info.type == QETH_CARD_TYPE_OSN)
1986 prot_type = QETH_PROT_OSN2;
1987 else
1988 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 1989 else
1990 prot_type = QETH_PROT_TCPIP;
500f83ab 1991 qeth_prepare_ipa_cmd(card,iob,prot_type);
1da177e4
LT		 1992 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1993 reply_cb, reply_param);
1994 return rc;
1995}
1996
1997
1998static int
1999qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2000 unsigned long data)
2001{
2002 struct qeth_cmd_buffer *iob;
2003
2004 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2005
2006 iob = (struct qeth_cmd_buffer *) data;
2007 memcpy(&card->token.cm_filter_r,
2008 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2009 QETH_MPC_TOKEN_LENGTH);
2010 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2011 return 0;
2012}
2013
2014static int
2015qeth_cm_enable(struct qeth_card *card)
2016{
2017 int rc;
2018 struct qeth_cmd_buffer *iob;
2019
2020 QETH_DBF_TEXT(setup,2,"cmenable");
2021
2022 iob = qeth_wait_for_buffer(&card->write);
2023 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2024 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2025 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2026 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2027 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2028
2029 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2030 qeth_cm_enable_cb, NULL);
2031 return rc;
2032}
2033
2034static int
2035qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2036 unsigned long data)
2037{
2038
2039 struct qeth_cmd_buffer *iob;
2040
2041 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2042
2043 iob = (struct qeth_cmd_buffer *) data;
2044 memcpy(&card->token.cm_connection_r,
2045 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2046 QETH_MPC_TOKEN_LENGTH);
2047 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2048 return 0;
2049}
2050
2051static int
2052qeth_cm_setup(struct qeth_card *card)
2053{
2054 int rc;
2055 struct qeth_cmd_buffer *iob;
2056
2057 QETH_DBF_TEXT(setup,2,"cmsetup");
2058
2059 iob = qeth_wait_for_buffer(&card->write);
2060 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2061 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2062 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2063 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2064 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2065 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2066 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2067 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2068 qeth_cm_setup_cb, NULL);
2069 return rc;
2070
2071}
2072
2073static int
2074qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2075 unsigned long data)
2076{
2077
2078 __u16 mtu, framesize;
2079 __u16 len;
2080 __u8 link_type;
2081 struct qeth_cmd_buffer *iob;
2082
2083 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2084
2085 iob = (struct qeth_cmd_buffer *) data;
2086 memcpy(&card->token.ulp_filter_r,
2087 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2088 QETH_MPC_TOKEN_LENGTH);
2089 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2090 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2091 mtu = qeth_get_mtu_outof_framesize(framesize);
2092 if (!mtu) {
2093 iob->rc = -EINVAL;
2094 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2095 return 0;
2096 }
2097 card->info.max_mtu = mtu;
2098 card->info.initial_mtu = mtu;
2099 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2100 } else {
2101 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2102 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2103 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2104 }
2105
2106 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2107 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2108 memcpy(&link_type,
2109 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2110 card->info.link_type = link_type;
2111 } else
2112 card->info.link_type = 0;
2113 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2114 return 0;
2115}
2116
2117static int
2118qeth_ulp_enable(struct qeth_card *card)
2119{
2120 int rc;
2121 char prot_type;
2122 struct qeth_cmd_buffer *iob;
2123
2124 /*FIXME: trace view callbacks*/
2125 QETH_DBF_TEXT(setup,2,"ulpenabl");
2126
2127 iob = qeth_wait_for_buffer(&card->write);
2128 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2129
2130 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2131 (__u8) card->info.portno;
2132 if (card->options.layer2)
500f83ab
UB		 2133 if (card->info.type == QETH_CARD_TYPE_OSN)
2134 prot_type = QETH_PROT_OSN2;
2135 else
2136 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 2137 else
2138 prot_type = QETH_PROT_TCPIP;
2139
2140 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2141 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2142 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2143 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2144 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2145 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2146 card->info.portname, 9);
2147 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2148 qeth_ulp_enable_cb, NULL);
2149 return rc;
2150
2151}
2152
2153static inline __u16
2154__raw_devno_from_bus_id(char *id)
2155{
2156 id += (strlen(id) - 4);
2157 return (__u16) simple_strtoul(id, &id, 16);
2158}
2159
2160static int
2161qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2162 unsigned long data)
2163{
2164 struct qeth_cmd_buffer *iob;
2165
2166 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2167
2168 iob = (struct qeth_cmd_buffer *) data;
2169 memcpy(&card->token.ulp_connection_r,
2170 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2171 QETH_MPC_TOKEN_LENGTH);
2172 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2173 return 0;
2174}
2175
2176static int
2177qeth_ulp_setup(struct qeth_card *card)
2178{
2179 int rc;
2180 __u16 temp;
2181 struct qeth_cmd_buffer *iob;
2182
2183 QETH_DBF_TEXT(setup,2,"ulpsetup");
2184
2185 iob = qeth_wait_for_buffer(&card->write);
2186 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2187
2188 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2189 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2190 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2191 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2192 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2193 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2194
2195 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2196 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2197 temp = (card->info.cula << 8) + card->info.unit_addr2;
2198 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2199 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2200 qeth_ulp_setup_cb, NULL);
2201 return rc;
2202}
2203
2204static inline int
6c6b3e7c
FP		 2205qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2206 unsigned int siga_error, const char *dbftext)
1da177e4 2207{
1da177e4 2208 if (qdio_error || siga_error) {
6c6b3e7c
FP		 2209 QETH_DBF_TEXT(trace, 2, dbftext);
2210 QETH_DBF_TEXT(qerr, 2, dbftext);
1da177e4 2211 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
6c6b3e7c 2212 buf->element[15].flags & 0xff);
1da177e4 2213 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
6c6b3e7c 2214 buf->element[14].flags & 0xff);
1da177e4
LT		 2215 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2216 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
6c6b3e7c 2217 return 1;
1da177e4 2218 }
6c6b3e7c 2219 return 0;
1da177e4
LT		 2220}
2221
2222static inline struct sk_buff *
500f83ab 2223qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
1da177e4
LT		 2224{
2225 struct sk_buff* skb;
500f83ab
UB		 2226 int add_len;
2227
2228 add_len = 0;
2229 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2230 add_len = sizeof(struct qeth_hdr);
1da177e4 2231#ifdef CONFIG_QETH_VLAN
500f83ab
UB		 2232 else
2233 add_len = VLAN_HLEN;
1da177e4 2234#endif
500f83ab
UB		 2235 skb = dev_alloc_skb(length + add_len);
2236 if (skb && add_len)
2237 skb_reserve(skb, add_len);
1da177e4
LT		 2238 return skb;
2239}
2240
2241static inline struct sk_buff *
2242qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2243 struct qdio_buffer_element **__element, int *__offset,
2244 struct qeth_hdr **hdr)
2245{
2246 struct qdio_buffer_element *element = *__element;
2247 int offset = *__offset;
2248 struct sk_buff *skb = NULL;
2249 int skb_len;
2250 void *data_ptr;
2251 int data_len;
2252
2253 QETH_DBF_TEXT(trace,6,"nextskb");
2254 /* qeth_hdr must not cross element boundaries */
2255 if (element->length < offset + sizeof(struct qeth_hdr)){
2256 if (qeth_is_last_sbale(element))
2257 return NULL;
2258 element++;
2259 offset = 0;
2260 if (element->length < sizeof(struct qeth_hdr))
2261 return NULL;
2262 }
2263 *hdr = element->addr + offset;
2264
2265 offset += sizeof(struct qeth_hdr);
2266 if (card->options.layer2)
500f83ab
UB		 2267 if (card->info.type == QETH_CARD_TYPE_OSN)
2268 skb_len = (*hdr)->hdr.osn.pdu_length;
2269 else
2270 skb_len = (*hdr)->hdr.l2.pkt_length;
1da177e4
LT		 2271 else
2272 skb_len = (*hdr)->hdr.l3.length;
2273
2274 if (!skb_len)
2275 return NULL;
2276 if (card->options.fake_ll){
e23dd9cd 2277 if(card->dev->type == ARPHRD_IEEE802_TR){
500f83ab 2278 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
e23dd9cd
FP		 2279 goto no_mem;
2280 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2281 } else {
500f83ab 2282 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
e23dd9cd
FP		 2283 goto no_mem;
2284 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2285 }
500f83ab 2286 } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
1da177e4
LT		 2287 goto no_mem;
2288 data_ptr = element->addr + offset;
2289 while (skb_len) {
2290 data_len = min(skb_len, (int)(element->length - offset));
2291 if (data_len)
2292 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2293 skb_len -= data_len;
2294 if (skb_len){
2295 if (qeth_is_last_sbale(element)){
2296 QETH_DBF_TEXT(trace,4,"unexeob");
2297 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2298 QETH_DBF_TEXT(qerr,2,"unexeob");
2299 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2300 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2301 dev_kfree_skb_any(skb);
2302 card->stats.rx_errors++;
2303 return NULL;
2304 }
2305 element++;
2306 offset = 0;
2307 data_ptr = element->addr;
2308 } else {
2309 offset += data_len;
2310 }
2311 }
2312 *__element = element;
2313 *__offset = offset;
2314 return skb;
2315no_mem:
2316 if (net_ratelimit()){
2317 PRINT_WARN("No memory for packet received on %s.\n",
2318 QETH_CARD_IFNAME(card));
2319 QETH_DBF_TEXT(trace,2,"noskbmem");
2320 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2321 }
2322 card->stats.rx_dropped++;
2323 return NULL;
2324}
2325
ab611487 2326static inline __be16
1da177e4
LT		 2327qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2328{
2329 struct qeth_card *card;
2330 struct ethhdr *eth;
2331
2332 QETH_DBF_TEXT(trace,6,"typtrans");
2333
2334 card = (struct qeth_card *)dev->priv;
2335#ifdef CONFIG_TR
2336 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2337 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2338 return tr_type_trans(skb,dev);
2339#endif /* CONFIG_TR */
2340 skb->mac.raw = skb->data;
2341 skb_pull(skb, ETH_HLEN );
2342 eth = eth_hdr(skb);
2343
2344 if (*eth->h_dest & 1) {
2345 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2346 skb->pkt_type = PACKET_BROADCAST;
2347 else
2348 skb->pkt_type = PACKET_MULTICAST;
2349 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2350 skb->pkt_type = PACKET_OTHERHOST;
2351
2352 if (ntohs(eth->h_proto) >= 1536)
2353 return eth->h_proto;
2354 if (*(unsigned short *) (skb->data) == 0xFFFF)
2355 return htons(ETH_P_802_3);
2356 return htons(ETH_P_802_2);
2357}
2358
2359static inline void
e23dd9cd
FP		 2360qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2361 struct qeth_hdr *hdr)
2362{
2363 struct trh_hdr *fake_hdr;
2364 struct trllc *fake_llc;
2365 struct iphdr *ip_hdr;
2366
2367 QETH_DBF_TEXT(trace,5,"skbfktr");
2368 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2369 /* this is a fake ethernet header */
2370 fake_hdr = (struct trh_hdr *) skb->mac.raw;
2371
2372 /* the destination MAC address */
2373 switch (skb->pkt_type){
2374 case PACKET_MULTICAST:
2375 switch (skb->protocol){
2376#ifdef CONFIG_QETH_IPV6
2377 case __constant_htons(ETH_P_IPV6):
2378 ndisc_mc_map((struct in6_addr *)
2379 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2380 fake_hdr->daddr, card->dev, 0);
2381 break;
2382#endif /* CONFIG_QETH_IPV6 */
2383 case __constant_htons(ETH_P_IP):
2384 ip_hdr = (struct iphdr *)skb->data;
2385 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2386 break;
2387 default:
2388 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2389 }
2390 break;
2391 case PACKET_BROADCAST:
2392 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2393 break;
2394 default:
2395 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2396 }
2397 /* the source MAC address */
2398 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2399 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2400 else
2401 memset(fake_hdr->saddr, 0, TR_ALEN);
2402 fake_hdr->rcf=0;
2403 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2404 fake_llc->dsap = EXTENDED_SAP;
2405 fake_llc->ssap = EXTENDED_SAP;
2406 fake_llc->llc = UI_CMD;
2407 fake_llc->protid[0] = 0;
2408 fake_llc->protid[1] = 0;
2409 fake_llc->protid[2] = 0;
2410 fake_llc->ethertype = ETH_P_IP;
2411}
2412
2413static inline void
2414qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
1da177e4
LT		 2415 struct qeth_hdr *hdr)
2416{
2417 struct ethhdr *fake_hdr;
2418 struct iphdr *ip_hdr;
2419
e23dd9cd
FP		 2420 QETH_DBF_TEXT(trace,5,"skbfketh");
2421 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
1da177e4
LT		 2422 /* this is a fake ethernet header */
2423 fake_hdr = (struct ethhdr *) skb->mac.raw;
2424
2425 /* the destination MAC address */
2426 switch (skb->pkt_type){
2427 case PACKET_MULTICAST:
2428 switch (skb->protocol){
2429#ifdef CONFIG_QETH_IPV6
2430 case __constant_htons(ETH_P_IPV6):
2431 ndisc_mc_map((struct in6_addr *)
2432 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2433 fake_hdr->h_dest, card->dev, 0);
2434 break;
2435#endif /* CONFIG_QETH_IPV6 */
2436 case __constant_htons(ETH_P_IP):
2437 ip_hdr = (struct iphdr *)skb->data;
e23dd9cd 2438 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
1da177e4
LT		 2439 break;
2440 default:
2441 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2442 }
2443 break;
2444 case PACKET_BROADCAST:
2445 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2446 break;
2447 default:
2448 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2449 }
2450 /* the source MAC address */
2451 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2452 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2453 else
2454 memset(fake_hdr->h_source, 0, ETH_ALEN);
2455 /* the protocol */
2456 fake_hdr->h_proto = skb->protocol;
2457}
2458
e23dd9cd
FP		 2459static inline void
2460qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2461 struct qeth_hdr *hdr)
2462{
2463 if (card->dev->type == ARPHRD_IEEE802_TR)
2464 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2465 else
2466 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2467}
2468
1da177e4
LT		 2469static inline void
2470qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2471 struct qeth_hdr *hdr)
2472{
2473#ifdef CONFIG_QETH_VLAN
2474 u16 *vlan_tag;
2475
2476 if (hdr->hdr.l3.ext_flags &
2477 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2478 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2479 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2480 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2481 *(vlan_tag + 1) = skb->protocol;
2482 skb->protocol = __constant_htons(ETH_P_8021Q);
2483 }
2484#endif /* CONFIG_QETH_VLAN */
2485}
2486
2487static inline __u16
2488qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2489 struct qeth_hdr *hdr)
2490{
2491 unsigned short vlan_id = 0;
2492#ifdef CONFIG_QETH_VLAN
2493 struct vlan_hdr *vhdr;
2494#endif
2495
2496 skb->pkt_type = PACKET_HOST;
2497 skb->protocol = qeth_type_trans(skb, skb->dev);
2498 if (card->options.checksum_type == NO_CHECKSUMMING)
2499 skb->ip_summed = CHECKSUM_UNNECESSARY;
2500 else
2501 skb->ip_summed = CHECKSUM_NONE;
2502#ifdef CONFIG_QETH_VLAN
2503 if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2504 vhdr = (struct vlan_hdr *) skb->data;
2505 skb->protocol =
2506 __constant_htons(vhdr->h_vlan_encapsulated_proto);
2507 vlan_id = hdr->hdr.l2.vlan_id;
2508 skb_pull(skb, VLAN_HLEN);
2509 }
2510#endif
9123e0d7 2511 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
1da177e4
LT		 2512 return vlan_id;
2513}
2514
2515static inline void
2516qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2517 struct qeth_hdr *hdr)
2518{
2519#ifdef CONFIG_QETH_IPV6
2520 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2521 skb->pkt_type = PACKET_HOST;
2522 skb->protocol = qeth_type_trans(skb, card->dev);
2523 return;
2524 }
2525#endif /* CONFIG_QETH_IPV6 */
2526 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2527 ETH_P_IP);
2528 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2529 case QETH_CAST_UNICAST:
2530 skb->pkt_type = PACKET_HOST;
2531 break;
2532 case QETH_CAST_MULTICAST:
2533 skb->pkt_type = PACKET_MULTICAST;
2534 card->stats.multicast++;
2535 break;
2536 case QETH_CAST_BROADCAST:
2537 skb->pkt_type = PACKET_BROADCAST;
2538 card->stats.multicast++;
2539 break;
2540 case QETH_CAST_ANYCAST:
2541 case QETH_CAST_NOCAST:
2542 default:
2543 skb->pkt_type = PACKET_HOST;
2544 }
2545 qeth_rebuild_skb_vlan(card, skb, hdr);
2546 if (card->options.fake_ll)
2547 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2548 else
2549 skb->mac.raw = skb->data;
2550 skb->ip_summed = card->options.checksum_type;
2551 if (card->options.checksum_type == HW_CHECKSUMMING){
2552 if ( (hdr->hdr.l3.ext_flags &
2553 (QETH_HDR_EXT_CSUM_HDR_REQ |
2554 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2555 (QETH_HDR_EXT_CSUM_HDR_REQ |
2556 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2557 skb->ip_summed = CHECKSUM_UNNECESSARY;
2558 else
2559 skb->ip_summed = SW_CHECKSUMMING;
2560 }
2561}
2562
2563static inline void
2564qeth_process_inbound_buffer(struct qeth_card *card,
2565 struct qeth_qdio_buffer *buf, int index)
2566{
2567 struct qdio_buffer_element *element;
2568 struct sk_buff *skb;
2569 struct qeth_hdr *hdr;
2570 int offset;
2571 int rxrc;
2572 __u16 vlan_tag = 0;
2573
2574 /* get first element of current buffer */
2575 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2576 offset = 0;
2577#ifdef CONFIG_QETH_PERF_STATS
2578 card->perf_stats.bufs_rec++;
2579#endif
2580 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2581 &offset, &hdr))) {
2582 skb->dev = card->dev;
2583 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2584 vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
500f83ab 2585 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
1da177e4 2586 qeth_rebuild_skb(card, skb, hdr);
500f83ab
UB		 2587 else { /*in case of OSN*/
2588 skb_push(skb, sizeof(struct qeth_hdr));
2589 memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2590 }
1da177e4
LT		 2591 /* is device UP ? */
2592 if (!(card->dev->flags & IFF_UP)){
2593 dev_kfree_skb_any(skb);
2594 continue;
2595 }
2596#ifdef CONFIG_QETH_VLAN
2597 if (vlan_tag)
2598 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2599 else
2600#endif
500f83ab
UB		 2601 if (card->info.type == QETH_CARD_TYPE_OSN)
2602 rxrc = card->osn_info.data_cb(skb);
2603 else
2604 rxrc = netif_rx(skb);
1da177e4
LT		 2605 card->dev->last_rx = jiffies;
2606 card->stats.rx_packets++;
2607 card->stats.rx_bytes += skb->len;
2608 }
2609}
2610
2611static inline struct qeth_buffer_pool_entry *
2612qeth_get_buffer_pool_entry(struct qeth_card *card)
2613{
2614 struct qeth_buffer_pool_entry *entry;
2615
2616 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2617 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2618 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2619 struct qeth_buffer_pool_entry, list);
2620 list_del_init(&entry->list);
2621 return entry;
2622 }
2623 return NULL;
2624}
2625
2626static inline void
2627qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2628{
2629 struct qeth_buffer_pool_entry *pool_entry;
2630 int i;
2631
2632 pool_entry = qeth_get_buffer_pool_entry(card);
2633 /*
2634 * since the buffer is accessed only from the input_tasklet
2635 * there shouldn't be a need to synchronize; also, since we use
2636 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2637 * buffers
2638 */
2639 BUG_ON(!pool_entry);
2640
2641 buf->pool_entry = pool_entry;
2642 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2643 buf->buffer->element[i].length = PAGE_SIZE;
2644 buf->buffer->element[i].addr = pool_entry->elements[i];
2645 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2646 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2647 else
2648 buf->buffer->element[i].flags = 0;
2649 }
2650 buf->state = QETH_QDIO_BUF_EMPTY;
2651}
2652
2653static inline void
2654qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2655 struct qeth_qdio_out_buffer *buf)
2656{
2657 int i;
2658 struct sk_buff *skb;
2659
2660 /* is PCI flag set on buffer? */
2661 if (buf->buffer->element[0].flags & 0x40)
2662 atomic_dec(&queue->set_pci_flags_count);
2663
2664 while ((skb = skb_dequeue(&buf->skb_list))){
2665 atomic_dec(&skb->users);
2666 dev_kfree_skb_any(skb);
2667 }
2668 qeth_eddp_buf_release_contexts(buf);
2669 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2670 buf->buffer->element[i].length = 0;
2671 buf->buffer->element[i].addr = NULL;
2672 buf->buffer->element[i].flags = 0;
2673 }
2674 buf->next_element_to_fill = 0;
2675 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2676}
2677
2678static inline void
2679qeth_queue_input_buffer(struct qeth_card *card, int index)
2680{
2681 struct qeth_qdio_q *queue = card->qdio.in_q;
2682 int count;
2683 int i;
2684 int rc;
2685
2686 QETH_DBF_TEXT(trace,6,"queinbuf");
2687 count = (index < queue->next_buf_to_init)?
2688 card->qdio.in_buf_pool.buf_count -
2689 (queue->next_buf_to_init - index) :
2690 card->qdio.in_buf_pool.buf_count -
2691 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2692 /* only requeue at a certain threshold to avoid SIGAs */
2693 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2694 for (i = queue->next_buf_to_init;
2695 i < queue->next_buf_to_init + count; ++i)
2696 qeth_init_input_buffer(card,
2697 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2698 /*
2699 * according to old code it should be avoided to requeue all
2700 * 128 buffers in order to benefit from PCI avoidance.
2701 * this function keeps at least one buffer (the buffer at
2702 * 'index') un-requeued -> this buffer is the first buffer that
2703 * will be requeued the next time
2704 */
2705#ifdef CONFIG_QETH_PERF_STATS
2706 card->perf_stats.inbound_do_qdio_cnt++;
2707 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2708#endif
2709 rc = do_QDIO(CARD_DDEV(card),
2710 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2711 0, queue->next_buf_to_init, count, NULL);
2712#ifdef CONFIG_QETH_PERF_STATS
2713 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2714 card->perf_stats.inbound_do_qdio_start_time;
2715#endif
2716 if (rc){
2717 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2718 "return %i (device %s).\n",
2719 rc, CARD_DDEV_ID(card));
2720 QETH_DBF_TEXT(trace,2,"qinberr");
2721 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2722 }
2723 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2724 QDIO_MAX_BUFFERS_PER_Q;
2725 }
2726}
2727
2728static inline void
2729qeth_put_buffer_pool_entry(struct qeth_card *card,
2730 struct qeth_buffer_pool_entry *entry)
2731{
2732 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2733 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2734}
2735
2736static void
2737qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2738 unsigned int qdio_err, unsigned int siga_err,
2739 unsigned int queue, int first_element, int count,
2740 unsigned long card_ptr)
2741{
2742 struct net_device *net_dev;
2743 struct qeth_card *card;
2744 struct qeth_qdio_buffer *buffer;
2745 int index;
2746 int i;
2747
2748 QETH_DBF_TEXT(trace, 6, "qdinput");
2749 card = (struct qeth_card *) card_ptr;
2750 net_dev = card->dev;
2751#ifdef CONFIG_QETH_PERF_STATS
2752 card->perf_stats.inbound_cnt++;
2753 card->perf_stats.inbound_start_time = qeth_get_micros();
2754#endif
2755 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2756 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2757 QETH_DBF_TEXT(trace, 1,"qdinchk");
2758 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2759 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2760 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2761 qeth_schedule_recovery(card);
2762 return;
2763 }
2764 }
2765 for (i = first_element; i < (first_element + count); ++i) {
2766 index = i % QDIO_MAX_BUFFERS_PER_Q;
2767 buffer = &card->qdio.in_q->bufs[index];
6c6b3e7c
FP		 2768 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2769 qeth_check_qdio_errors(buffer->buffer,
2770 qdio_err, siga_err,"qinerr")))
1da177e4
LT		 2771 qeth_process_inbound_buffer(card, buffer, index);
2772 /* clear buffer and give back to hardware */
2773 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2774 qeth_queue_input_buffer(card, index);
2775 }
2776#ifdef CONFIG_QETH_PERF_STATS
2777 card->perf_stats.inbound_time += qeth_get_micros() -
2778 card->perf_stats.inbound_start_time;
2779#endif
2780}
2781
2782static inline int
2783qeth_handle_send_error(struct qeth_card *card,
2784 struct qeth_qdio_out_buffer *buffer,
6c6b3e7c 2785 unsigned int qdio_err, unsigned int siga_err)
1da177e4
LT		 2786{
2787 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2788 int cc = siga_err & 3;
2789
2790 QETH_DBF_TEXT(trace, 6, "hdsnderr");
6c6b3e7c 2791 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
1da177e4
LT		 2792 switch (cc) {
2793 case 0:
2794 if (qdio_err){
2795 QETH_DBF_TEXT(trace, 1,"lnkfail");
2796 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2797 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2798 (u16)qdio_err, (u8)sbalf15);
2799 return QETH_SEND_ERROR_LINK_FAILURE;
2800 }
2801 return QETH_SEND_ERROR_NONE;
2802 case 2:
2803 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2804 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2805 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2806 return QETH_SEND_ERROR_KICK_IT;
2807 }
2808 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2809 return QETH_SEND_ERROR_RETRY;
2810 return QETH_SEND_ERROR_LINK_FAILURE;
2811 /* look at qdio_error and sbalf 15 */
2812 case 1:
2813 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2814 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2815 return QETH_SEND_ERROR_LINK_FAILURE;
2816 case 3:
2817 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2818 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2819 return QETH_SEND_ERROR_KICK_IT;
2820 }
2821 return QETH_SEND_ERROR_LINK_FAILURE;
2822}
2823
2824void
2825qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2826 int index, int count)
2827{
2828 struct qeth_qdio_out_buffer *buf;
2829 int rc;
2830 int i;
2831
2832 QETH_DBF_TEXT(trace, 6, "flushbuf");
2833
2834 for (i = index; i < index + count; ++i) {
2835 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2836 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2837 SBAL_FLAGS_LAST_ENTRY;
2838
2839 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2840 continue;
2841
2842 if (!queue->do_pack){
2843 if ((atomic_read(&queue->used_buffers) >=
2844 (QETH_HIGH_WATERMARK_PACK -
2845 QETH_WATERMARK_PACK_FUZZ)) &&
2846 !atomic_read(&queue->set_pci_flags_count)){
2847 /* it's likely that we'll go to packing
2848 * mode soon */
2849 atomic_inc(&queue->set_pci_flags_count);
2850 buf->buffer->element[0].flags |= 0x40;
2851 }
2852 } else {
2853 if (!atomic_read(&queue->set_pci_flags_count)){
2854 /*
2855 * there's no outstanding PCI any more, so we
2856 * have to request a PCI to be sure the the PCI
2857 * will wake at some time in the future then we
2858 * can flush packed buffers that might still be
2859 * hanging around, which can happen if no
2860 * further send was requested by the stack
2861 */
2862 atomic_inc(&queue->set_pci_flags_count);
2863 buf->buffer->element[0].flags |= 0x40;
2864 }
2865 }
2866 }
2867
2868 queue->card->dev->trans_start = jiffies;
2869#ifdef CONFIG_QETH_PERF_STATS
2870 queue->card->perf_stats.outbound_do_qdio_cnt++;
2871 queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2872#endif
2873 if (under_int)
2874 rc = do_QDIO(CARD_DDEV(queue->card),
2875 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2876 queue->queue_no, index, count, NULL);
2877 else
2878 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2879 queue->queue_no, index, count, NULL);
2880#ifdef CONFIG_QETH_PERF_STATS
2881 queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2882 queue->card->perf_stats.outbound_do_qdio_start_time;
2883#endif
2884 if (rc){
1da177e4
LT		 2885 QETH_DBF_TEXT(trace, 2, "flushbuf");
2886 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
f3d242e8 2887 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
1da177e4
LT		 2888 queue->card->stats.tx_errors += count;
2889 /* this must not happen under normal circumstances. if it
2890 * happens something is really wrong -> recover */
2891 qeth_schedule_recovery(queue->card);
2892 return;
2893 }
2894 atomic_add(count, &queue->used_buffers);
2895#ifdef CONFIG_QETH_PERF_STATS
2896 queue->card->perf_stats.bufs_sent += count;
2897#endif
2898}
2899
2900/*
2901 * Switched to packing state if the number of used buffers on a queue
2902 * reaches a certain limit.
2903 */
2904static inline void
2905qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2906{
2907 if (!queue->do_pack) {
2908 if (atomic_read(&queue->used_buffers)
2909 >= QETH_HIGH_WATERMARK_PACK){
2910 /* switch non-PACKING -> PACKING */
2911 QETH_DBF_TEXT(trace, 6, "np->pack");
2912#ifdef CONFIG_QETH_PERF_STATS
2913 queue->card->perf_stats.sc_dp_p++;
2914#endif
2915 queue->do_pack = 1;
2916 }
2917 }
2918}
2919
2920/*
2921 * Switches from packing to non-packing mode. If there is a packing
2922 * buffer on the queue this buffer will be prepared to be flushed.
2923 * In that case 1 is returned to inform the caller. If no buffer
2924 * has to be flushed, zero is returned.
2925 */
2926static inline int
2927qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2928{
2929 struct qeth_qdio_out_buffer *buffer;
2930 int flush_count = 0;
2931
2932 if (queue->do_pack) {
2933 if (atomic_read(&queue->used_buffers)
2934 <= QETH_LOW_WATERMARK_PACK) {
2935 /* switch PACKING -> non-PACKING */
2936 QETH_DBF_TEXT(trace, 6, "pack->np");
2937#ifdef CONFIG_QETH_PERF_STATS
2938 queue->card->perf_stats.sc_p_dp++;
2939#endif
2940 queue->do_pack = 0;
2941 /* flush packing buffers */
2942 buffer = &queue->bufs[queue->next_buf_to_fill];
2943 if ((atomic_read(&buffer->state) ==
2944 QETH_QDIO_BUF_EMPTY) &&
2945 (buffer->next_element_to_fill > 0)) {
2946 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2947 flush_count++;
2948 queue->next_buf_to_fill =
2949 (queue->next_buf_to_fill + 1) %
2950 QDIO_MAX_BUFFERS_PER_Q;
2951 }
2952 }
2953 }
2954 return flush_count;
2955}
2956
2957/*
2958 * Called to flush a packing buffer if no more pci flags are on the queue.
2959 * Checks if there is a packing buffer and prepares it to be flushed.
2960 * In that case returns 1, otherwise zero.
2961 */
2962static inline int
2963qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2964{
2965 struct qeth_qdio_out_buffer *buffer;
2966
2967 buffer = &queue->bufs[queue->next_buf_to_fill];
2968 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2969 (buffer->next_element_to_fill > 0)){
2970 /* it's a packing buffer */
2971 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2972 queue->next_buf_to_fill =
2973 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2974 return 1;
2975 }
2976 return 0;
2977}
2978
2979static inline void
2980qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2981{
2982 int index;
2983 int flush_cnt = 0;
2984 int q_was_packing = 0;
2985
2986 /*
2987 * check if weed have to switch to non-packing mode or if
2988 * we have to get a pci flag out on the queue
2989 */
2990 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2991 !atomic_read(&queue->set_pci_flags_count)){
2992 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2993 QETH_OUT_Q_UNLOCKED) {
2994 /*
2995 * If we get in here, there was no action in
2996 * do_send_packet. So, we check if there is a
2997 * packing buffer to be flushed here.
2998 */
2999 netif_stop_queue(queue->card->dev);
3000 index = queue->next_buf_to_fill;
3001 q_was_packing = queue->do_pack;
3002 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3003 if (!flush_cnt &&
3004 !atomic_read(&queue->set_pci_flags_count))
3005 flush_cnt +=
3006 qeth_flush_buffers_on_no_pci(queue);
3007#ifdef CONFIG_QETH_PERF_STATS
3008 if (q_was_packing)
3009 queue->card->perf_stats.bufs_sent_pack +=
3010 flush_cnt;
3011#endif
3012 if (flush_cnt)
3013 qeth_flush_buffers(queue, 1, index, flush_cnt);
3014 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3015 }
3016 }
3017}
3018
3019static void
3020qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3021 unsigned int qdio_error, unsigned int siga_error,
3022 unsigned int __queue, int first_element, int count,
3023 unsigned long card_ptr)
3024{
3025 struct qeth_card *card = (struct qeth_card *) card_ptr;
3026 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3027 struct qeth_qdio_out_buffer *buffer;
3028 int i;
3029
3030 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3031 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3032 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
f3d242e8
FP		 3033 QETH_DBF_TEXT(trace, 2, "achkcond");
3034 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
1da177e4
LT		 3035 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3036 netif_stop_queue(card->dev);
3037 qeth_schedule_recovery(card);
3038 return;
3039 }
3040 }
3041#ifdef CONFIG_QETH_PERF_STATS
3042 card->perf_stats.outbound_handler_cnt++;
3043 card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3044#endif
3045 for(i = first_element; i < (first_element + count); ++i){
3046 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3047 /*we only handle the KICK_IT error by doing a recovery */
6c6b3e7c
FP		 3048 if (qeth_handle_send_error(card, buffer,
3049 qdio_error, siga_error)
1da177e4
LT		 3050 == QETH_SEND_ERROR_KICK_IT){
3051 netif_stop_queue(card->dev);
3052 qeth_schedule_recovery(card);
3053 return;
3054 }
3055 qeth_clear_output_buffer(queue, buffer);
3056 }
3057 atomic_sub(count, &queue->used_buffers);
3058 /* check if we need to do something on this outbound queue */
3059 if (card->info.type != QETH_CARD_TYPE_IQD)
3060 qeth_check_outbound_queue(queue);
3061
3062 netif_wake_queue(queue->card->dev);
3063#ifdef CONFIG_QETH_PERF_STATS
3064 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3065 card->perf_stats.outbound_handler_start_time;
3066#endif
3067}
3068
3069static void
3070qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3071{
3072
3073 param_field[0] = _ascebc['P'];
3074 param_field[1] = _ascebc['C'];
3075 param_field[2] = _ascebc['I'];
3076 param_field[3] = _ascebc['T'];
3077 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3078 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3079 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3080}
3081
3082static void
3083qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3084{
3085 param_field[16] = _ascebc['B'];
3086 param_field[17] = _ascebc['L'];
3087 param_field[18] = _ascebc['K'];
3088 param_field[19] = _ascebc['T'];
3089 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3090 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3091 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3092}
3093
3094static void
3095qeth_initialize_working_pool_list(struct qeth_card *card)
3096{
3097 struct qeth_buffer_pool_entry *entry;
3098
3099 QETH_DBF_TEXT(trace,5,"inwrklst");
3100
3101 list_for_each_entry(entry,
3102 &card->qdio.init_pool.entry_list, init_list) {
3103 qeth_put_buffer_pool_entry(card,entry);
3104 }
3105}
3106
3107static void
3108qeth_clear_working_pool_list(struct qeth_card *card)
3109{
3110 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3111
3112 QETH_DBF_TEXT(trace,5,"clwrklst");
3113 list_for_each_entry_safe(pool_entry, tmp,
3114 &card->qdio.in_buf_pool.entry_list, list){
3115 list_del(&pool_entry->list);
3116 }
3117}
3118
3119static void
3120qeth_free_buffer_pool(struct qeth_card *card)
3121{
3122 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3123 int i=0;
3124 QETH_DBF_TEXT(trace,5,"freepool");
3125 list_for_each_entry_safe(pool_entry, tmp,
3126 &card->qdio.init_pool.entry_list, init_list){
3127 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3128 free_page((unsigned long)pool_entry->elements[i]);
3129 list_del(&pool_entry->init_list);
3130 kfree(pool_entry);
3131 }
3132}
3133
3134static int
3135qeth_alloc_buffer_pool(struct qeth_card *card)
3136{
3137 struct qeth_buffer_pool_entry *pool_entry;
3138 void *ptr;
3139 int i, j;
3140
3141 QETH_DBF_TEXT(trace,5,"alocpool");
3142 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3143 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3144 if (!pool_entry){
3145 qeth_free_buffer_pool(card);
3146 return -ENOMEM;
3147 }
3148 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
9123e0d7 3149 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3150 if (!ptr) {
3151 while (j > 0)
3152 free_page((unsigned long)
3153 pool_entry->elements[--j]);
3154 kfree(pool_entry);
3155 qeth_free_buffer_pool(card);
3156 return -ENOMEM;
3157 }
3158 pool_entry->elements[j] = ptr;
3159 }
3160 list_add(&pool_entry->init_list,
3161 &card->qdio.init_pool.entry_list);
3162 }
3163 return 0;
3164}
3165
3166int
3167qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3168{
3169 QETH_DBF_TEXT(trace, 2, "realcbp");
3170
3171 if ((card->state != CARD_STATE_DOWN) &&
3172 (card->state != CARD_STATE_RECOVER))
3173 return -EPERM;
3174
3175 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3176 qeth_clear_working_pool_list(card);
3177 qeth_free_buffer_pool(card);
3178 card->qdio.in_buf_pool.buf_count = bufcnt;
3179 card->qdio.init_pool.buf_count = bufcnt;
3180 return qeth_alloc_buffer_pool(card);
3181}
3182
3183static int
3184qeth_alloc_qdio_buffers(struct qeth_card *card)
3185{
3186 int i, j;
3187
3188 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3189
3190 if (card->qdio.state == QETH_QDIO_ALLOCATED)
3191 return 0;
3192
9123e0d7
UB		 3193 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3194 GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3195 if (!card->qdio.in_q)
3196 return - ENOMEM;
3197 QETH_DBF_TEXT(setup, 2, "inq");
3198 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3199 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3200 /* give inbound qeth_qdio_buffers their qdio_buffers */
3201 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3202 card->qdio.in_q->bufs[i].buffer =
3203 &card->qdio.in_q->qdio_bufs[i];
3204 /* inbound buffer pool */
3205 if (qeth_alloc_buffer_pool(card)){
3206 kfree(card->qdio.in_q);
3207 return -ENOMEM;
3208 }
3209 /* outbound */
3210 card->qdio.out_qs =
3211 kmalloc(card->qdio.no_out_queues *
3212 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3213 if (!card->qdio.out_qs){
3214 qeth_free_buffer_pool(card);
3215 return -ENOMEM;
3216 }
3217 for (i = 0; i < card->qdio.no_out_queues; ++i){
3218 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
9123e0d7 3219 GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3220 if (!card->qdio.out_qs[i]){
3221 while (i > 0)
3222 kfree(card->qdio.out_qs[--i]);
3223 kfree(card->qdio.out_qs);
3224 return -ENOMEM;
3225 }
3226 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3227 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3228 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3229 card->qdio.out_qs[i]->queue_no = i;
3230 /* give outbound qeth_qdio_buffers their qdio_buffers */
3231 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3232 card->qdio.out_qs[i]->bufs[j].buffer =
3233 &card->qdio.out_qs[i]->qdio_bufs[j];
3234 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3235 skb_list);
3236 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3237 }
3238 }
3239 card->qdio.state = QETH_QDIO_ALLOCATED;
3240 return 0;
3241}
3242
3243static void
3244qeth_free_qdio_buffers(struct qeth_card *card)
3245{
3246 int i, j;
3247
3248 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3249 if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3250 return;
3251 kfree(card->qdio.in_q);
3252 /* inbound buffer pool */
3253 qeth_free_buffer_pool(card);
3254 /* free outbound qdio_qs */
3255 for (i = 0; i < card->qdio.no_out_queues; ++i){
3256 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3257 qeth_clear_output_buffer(card->qdio.out_qs[i],
3258 &card->qdio.out_qs[i]->bufs[j]);
3259 kfree(card->qdio.out_qs[i]);
3260 }
3261 kfree(card->qdio.out_qs);
3262 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3263}
3264
3265static void
3266qeth_clear_qdio_buffers(struct qeth_card *card)
3267{
3268 int i, j;
3269
3270 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3271 /* clear outbound buffers to free skbs */
3272 for (i = 0; i < card->qdio.no_out_queues; ++i)
3273 if (card->qdio.out_qs[i]){
3274 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3275 qeth_clear_output_buffer(card->qdio.out_qs[i],
3276 &card->qdio.out_qs[i]->bufs[j]);
3277 }
3278}
3279
3280static void
3281qeth_init_qdio_info(struct qeth_card *card)
3282{
3283 QETH_DBF_TEXT(setup, 4, "intqdinf");
3284 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3285 /* inbound */
3286 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3287 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3288 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3289 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3290 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1da177e4
LT		 3291}
3292
3293static int
3294qeth_init_qdio_queues(struct qeth_card *card)
3295{
3296 int i, j;
3297 int rc;
3298
3299 QETH_DBF_TEXT(setup, 2, "initqdqs");
3300
3301 /* inbound queue */
3302 memset(card->qdio.in_q->qdio_bufs, 0,
3303 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3304 qeth_initialize_working_pool_list(card);
3305 /*give only as many buffers to hardware as we have buffer pool entries*/
3306 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3307 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3308 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3309 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3310 card->qdio.in_buf_pool.buf_count - 1, NULL);
3311 if (rc) {
3312 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3313 return rc;
3314 }
3315 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3316 if (rc) {
3317 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3318 return rc;
3319 }
3320 /* outbound queue */
3321 for (i = 0; i < card->qdio.no_out_queues; ++i){
3322 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3323 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3324 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3325 qeth_clear_output_buffer(card->qdio.out_qs[i],
3326 &card->qdio.out_qs[i]->bufs[j]);
3327 }
3328 card->qdio.out_qs[i]->card = card;
3329 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3330 card->qdio.out_qs[i]->do_pack = 0;
3331 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3332 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3333 atomic_set(&card->qdio.out_qs[i]->state,
3334 QETH_OUT_Q_UNLOCKED);
3335 }
3336 return 0;
3337}
3338
3339static int
3340qeth_qdio_establish(struct qeth_card *card)
3341{
3342 struct qdio_initialize init_data;
3343 char *qib_param_field;
3344 struct qdio_buffer **in_sbal_ptrs;
3345 struct qdio_buffer **out_sbal_ptrs;
3346 int i, j, k;
3347 int rc;
3348
3349 QETH_DBF_TEXT(setup, 2, "qdioest");
3350
3351 qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3352 GFP_KERNEL);
3353 if (!qib_param_field)
3354 return -ENOMEM;
3355
3356 memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3357
3358 qeth_create_qib_param_field(card, qib_param_field);
3359 qeth_create_qib_param_field_blkt(card, qib_param_field);
3360
3361 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3362 GFP_KERNEL);
3363 if (!in_sbal_ptrs) {
3364 kfree(qib_param_field);
3365 return -ENOMEM;
3366 }
3367 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3368 in_sbal_ptrs[i] = (struct qdio_buffer *)
3369 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3370
3371 out_sbal_ptrs =
3372 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3373 sizeof(void *), GFP_KERNEL);
3374 if (!out_sbal_ptrs) {
3375 kfree(in_sbal_ptrs);
3376 kfree(qib_param_field);
3377 return -ENOMEM;
3378 }
3379 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3380 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3381 out_sbal_ptrs[k] = (struct qdio_buffer *)
3382 virt_to_phys(card->qdio.out_qs[i]->
3383 bufs[j].buffer);
3384 }
3385
3386 memset(&init_data, 0, sizeof(struct qdio_initialize));
3387 init_data.cdev = CARD_DDEV(card);
3388 init_data.q_format = qeth_get_qdio_q_format(card);
3389 init_data.qib_param_field_format = 0;
3390 init_data.qib_param_field = qib_param_field;
3391 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3392 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3393 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3394 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3395 init_data.no_input_qs = 1;
3396 init_data.no_output_qs = card->qdio.no_out_queues;
3397 init_data.input_handler = (qdio_handler_t *)
3398 qeth_qdio_input_handler;
3399 init_data.output_handler = (qdio_handler_t *)
3400 qeth_qdio_output_handler;
3401 init_data.int_parm = (unsigned long) card;
3402 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3403 QDIO_OUTBOUND_0COPY_SBALS |
3404 QDIO_USE_OUTBOUND_PCIS;
3405 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3406 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3407
3408 if (!(rc = qdio_initialize(&init_data)))
3409 card->qdio.state = QETH_QDIO_ESTABLISHED;
3410
3411 kfree(out_sbal_ptrs);
3412 kfree(in_sbal_ptrs);
3413 kfree(qib_param_field);
3414 return rc;
3415}
3416
3417static int
3418qeth_qdio_activate(struct qeth_card *card)
3419{
3420 QETH_DBF_TEXT(setup,3,"qdioact");
3421 return qdio_activate(CARD_DDEV(card), 0);
3422}
3423
3424static int
3425qeth_clear_channel(struct qeth_channel *channel)
3426{
3427 unsigned long flags;
3428 struct qeth_card *card;
3429 int rc;
3430
3431 QETH_DBF_TEXT(trace,3,"clearch");
3432 card = CARD_FROM_CDEV(channel->ccwdev);
3433 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3434 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3435 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3436
3437 if (rc)
3438 return rc;
3439 rc = wait_event_interruptible_timeout(card->wait_q,
3440 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3441 if (rc == -ERESTARTSYS)
3442 return rc;
3443 if (channel->state != CH_STATE_STOPPED)
3444 return -ETIME;
3445 channel->state = CH_STATE_DOWN;
3446 return 0;
3447}
3448
3449static int
3450qeth_halt_channel(struct qeth_channel *channel)
3451{
3452 unsigned long flags;
3453 struct qeth_card *card;
3454 int rc;
3455
3456 QETH_DBF_TEXT(trace,3,"haltch");
3457 card = CARD_FROM_CDEV(channel->ccwdev);
3458 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3459 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3460 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3461
3462 if (rc)
3463 return rc;
3464 rc = wait_event_interruptible_timeout(card->wait_q,
3465 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3466 if (rc == -ERESTARTSYS)
3467 return rc;
3468 if (channel->state != CH_STATE_HALTED)
3469 return -ETIME;
3470 return 0;
3471}
3472
3473static int
3474qeth_halt_channels(struct qeth_card *card)
3475{
f3d242e8 3476 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3477
3478 QETH_DBF_TEXT(trace,3,"haltchs");
f3d242e8
FP		 3479 rc1 = qeth_halt_channel(&card->read);
3480 rc2 = qeth_halt_channel(&card->write);
3481 rc3 = qeth_halt_channel(&card->data);
3482 if (rc1)
3483 return rc1;
3484 if (rc2)
3485 return rc2;
3486 return rc3;
1da177e4
LT		 3487}
3488static int
3489qeth_clear_channels(struct qeth_card *card)
3490{
f3d242e8 3491 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3492
3493 QETH_DBF_TEXT(trace,3,"clearchs");
f3d242e8
FP		 3494 rc1 = qeth_clear_channel(&card->read);
3495 rc2 = qeth_clear_channel(&card->write);
3496 rc3 = qeth_clear_channel(&card->data);
3497 if (rc1)
3498 return rc1;
3499 if (rc2)
3500 return rc2;
3501 return rc3;
1da177e4
LT		 3502}
3503
3504static int
3505qeth_clear_halt_card(struct qeth_card *card, int halt)
3506{
3507 int rc = 0;
3508
3509 QETH_DBF_TEXT(trace,3,"clhacrd");
3510 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3511
3512 if (halt)
3513 rc = qeth_halt_channels(card);
3514 if (rc)
3515 return rc;
3516 return qeth_clear_channels(card);
3517}
3518
3519static int
3520qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3521{
3522 int rc = 0;
3523
3524 QETH_DBF_TEXT(trace,3,"qdioclr");
3525 if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3526 if ((rc = qdio_cleanup(CARD_DDEV(card),
3527 (card->info.type == QETH_CARD_TYPE_IQD) ?
3528 QDIO_FLAG_CLEANUP_USING_HALT :
3529 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3530 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3531 card->qdio.state = QETH_QDIO_ALLOCATED;
3532 }
3533 if ((rc = qeth_clear_halt_card(card, use_halt)))
3534 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3535 card->state = CARD_STATE_DOWN;
3536 return rc;
3537}
3538
3539static int
3540qeth_dm_act(struct qeth_card *card)
3541{
3542 int rc;
3543 struct qeth_cmd_buffer *iob;
3544
3545 QETH_DBF_TEXT(setup,2,"dmact");
3546
3547 iob = qeth_wait_for_buffer(&card->write);
3548 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3549
3550 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3551 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3552 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3553 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3554 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3555 return rc;
3556}
3557
3558static int
3559qeth_mpc_initialize(struct qeth_card *card)
3560{
3561 int rc;
3562
3563 QETH_DBF_TEXT(setup,2,"mpcinit");
3564
3565 if ((rc = qeth_issue_next_read(card))){
3566 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3567 return rc;
3568 }
3569 if ((rc = qeth_cm_enable(card))){
3570 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
f3d242e8 3571 goto out_qdio;
1da177e4
LT		 3572 }
3573 if ((rc = qeth_cm_setup(card))){
3574 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
f3d242e8 3575 goto out_qdio;
1da177e4
LT		 3576 }
3577 if ((rc = qeth_ulp_enable(card))){
3578 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
f3d242e8 3579 goto out_qdio;
1da177e4
LT		 3580 }
3581 if ((rc = qeth_ulp_setup(card))){
3582 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3583 goto out_qdio;
1da177e4
LT		 3584 }
3585 if ((rc = qeth_alloc_qdio_buffers(card))){
3586 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3587 goto out_qdio;
1da177e4
LT		 3588 }
3589 if ((rc = qeth_qdio_establish(card))){
3590 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3591 qeth_free_qdio_buffers(card);
3592 goto out_qdio;
3593 }
3594 if ((rc = qeth_qdio_activate(card))){
3595 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3596 goto out_qdio;
3597 }
3598 if ((rc = qeth_dm_act(card))){
3599 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3600 goto out_qdio;
3601 }
3602
3603 return 0;
3604out_qdio:
500f83ab 3605 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 3606 return rc;
3607}
3608
3609static struct net_device *
3610qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3611{
3612 struct net_device *dev = NULL;
3613
3614 switch (type) {
3615 case QETH_CARD_TYPE_OSAE:
3616 switch (linktype) {
3617 case QETH_LINK_TYPE_LANE_TR:
3618 case QETH_LINK_TYPE_HSTR:
3619#ifdef CONFIG_TR
3620 dev = alloc_trdev(0);
3621#endif /* CONFIG_TR */
3622 break;
3623 default:
3624 dev = alloc_etherdev(0);
3625 }
3626 break;
3627 case QETH_CARD_TYPE_IQD:
3628 dev = alloc_netdev(0, "hsi%d", ether_setup);
3629 break;
500f83ab
UB		 3630 case QETH_CARD_TYPE_OSN:
3631 dev = alloc_netdev(0, "osn%d", ether_setup);
3632 break;
1da177e4
LT		 3633 default:
3634 dev = alloc_etherdev(0);
3635 }
3636 return dev;
3637}
3638
3639/*hard_header fake function; used in case fake_ll is set */
3640static int
3641qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3642 unsigned short type, void *daddr, void *saddr,
3643 unsigned len)
3644{
e23dd9cd
FP		 3645 if(dev->type == ARPHRD_IEEE802_TR){
3646 struct trh_hdr *hdr;
3647 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3648 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3649 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3650 return QETH_FAKE_LL_LEN_TR;
3651
3652 } else {
3653 struct ethhdr *hdr;
3654 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3655 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3656 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3657 if (type != ETH_P_802_3)
3658 hdr->h_proto = htons(type);
3659 else
3660 hdr->h_proto = htons(len);
3661 return QETH_FAKE_LL_LEN_ETH;
1da177e4 3662
e23dd9cd 3663 }
1da177e4
LT		 3664}
3665
3666static inline int
3667qeth_send_packet(struct qeth_card *, struct sk_buff *);
3668
3669static int
3670qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3671{
3672 int rc;
3673 struct qeth_card *card;
3674
3675 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3676 card = (struct qeth_card *)dev->priv;
3677 if (skb==NULL) {
3678 card->stats.tx_dropped++;
3679 card->stats.tx_errors++;
3680 /* return OK; otherwise ksoftirqd goes to 100% */
3681 return NETDEV_TX_OK;
3682 }
3683 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3684 card->stats.tx_dropped++;
3685 card->stats.tx_errors++;
3686 card->stats.tx_carrier_errors++;
3687 dev_kfree_skb_any(skb);
3688 /* return OK; otherwise ksoftirqd goes to 100% */
3689 return NETDEV_TX_OK;
3690 }
3691#ifdef CONFIG_QETH_PERF_STATS
3692 card->perf_stats.outbound_cnt++;
3693 card->perf_stats.outbound_start_time = qeth_get_micros();
3694#endif
3695 netif_stop_queue(dev);
3696 if ((rc = qeth_send_packet(card, skb))) {
3697 if (rc == -EBUSY) {
3698 return NETDEV_TX_BUSY;
3699 } else {
3700 card->stats.tx_errors++;
3701 card->stats.tx_dropped++;
3702 dev_kfree_skb_any(skb);
3703 /*set to OK; otherwise ksoftirqd goes to 100% */
3704 rc = NETDEV_TX_OK;
3705 }
3706 }
3707 netif_wake_queue(dev);
3708#ifdef CONFIG_QETH_PERF_STATS
3709 card->perf_stats.outbound_time += qeth_get_micros() -
3710 card->perf_stats.outbound_start_time;
3711#endif
3712 return rc;
3713}
3714
3715static int
3716qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3717{
3718 int rc = 0;
3719#ifdef CONFIG_QETH_VLAN
3720 struct vlan_group *vg;
3721 int i;
3722
3723 if (!(vg = card->vlangrp))
3724 return rc;
3725
3726 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3727 if (vg->vlan_devices[i] == dev){
3728 rc = QETH_VLAN_CARD;
3729 break;
3730 }
3731 }
6c6b3e7c
FP		 3732 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3733 return 0;
3734
1da177e4
LT		 3735#endif
3736 return rc;
3737}
3738
3739static int
3740qeth_verify_dev(struct net_device *dev)
3741{
3742 struct qeth_card *card;
3743 unsigned long flags;
3744 int rc = 0;
3745
3746 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3747 list_for_each_entry(card, &qeth_card_list.list, list){
3748 if (card->dev == dev){
3749 rc = QETH_REAL_CARD;
3750 break;
3751 }
3752 rc = qeth_verify_vlan_dev(dev, card);
3753 if (rc)
3754 break;
3755 }
3756 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3757
3758 return rc;
3759}
3760
3761static struct qeth_card *
3762qeth_get_card_from_dev(struct net_device *dev)
3763{
3764 struct qeth_card *card = NULL;
3765 int rc;
3766
3767 rc = qeth_verify_dev(dev);
3768 if (rc == QETH_REAL_CARD)
3769 card = (struct qeth_card *)dev->priv;
3770 else if (rc == QETH_VLAN_CARD)
3771 card = (struct qeth_card *)
3772 VLAN_DEV_INFO(dev)->real_dev->priv;
3773
3774 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3775 return card ;
3776}
3777
3778static void
3779qeth_tx_timeout(struct net_device *dev)
3780{
3781 struct qeth_card *card;
3782
3783 card = (struct qeth_card *) dev->priv;
3784 card->stats.tx_errors++;
3785 qeth_schedule_recovery(card);
3786}
3787
3788static int
3789qeth_open(struct net_device *dev)
3790{
3791 struct qeth_card *card;
3792
3793 QETH_DBF_TEXT(trace, 4, "qethopen");
3794
3795 card = (struct qeth_card *) dev->priv;
3796
3797 if (card->state != CARD_STATE_SOFTSETUP)
3798 return -ENODEV;
3799
500f83ab
UB		 3800 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3801 (card->options.layer2) &&
e08d88cc 3802 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
1da177e4
LT		 3803 QETH_DBF_TEXT(trace,4,"nomacadr");
3804 return -EPERM;
3805 }
3806 card->dev->flags |= IFF_UP;
3807 netif_start_queue(dev);
3808 card->data.state = CH_STATE_UP;
3809 card->state = CARD_STATE_UP;
3810
4965e97f
FP		 3811 if (!card->lan_online && netif_carrier_ok(dev))
3812 netif_carrier_off(dev);
1da177e4
LT		 3813 return 0;
3814}
3815
3816static int
3817qeth_stop(struct net_device *dev)
3818{
3819 struct qeth_card *card;
3820
3821 QETH_DBF_TEXT(trace, 4, "qethstop");
3822
3823 card = (struct qeth_card *) dev->priv;
3824
3825 netif_stop_queue(dev);
3826 card->dev->flags &= ~IFF_UP;
3827 if (card->state == CARD_STATE_UP)
3828 card->state = CARD_STATE_SOFTSETUP;
3829 return 0;
3830}
3831
3832static inline int
3833qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3834{
3835 int cast_type = RTN_UNSPEC;
3836
500f83ab
UB		 3837 if (card->info.type == QETH_CARD_TYPE_OSN)
3838 return cast_type;
3839
1da177e4
LT		 3840 if (skb->dst && skb->dst->neighbour){
3841 cast_type = skb->dst->neighbour->type;
3842 if ((cast_type == RTN_BROADCAST) ||
3843 (cast_type == RTN_MULTICAST) ||
3844 (cast_type == RTN_ANYCAST))
3845 return cast_type;
3846 else
3847 return RTN_UNSPEC;
3848 }
3849 /* try something else */
3850 if (skb->protocol == ETH_P_IPV6)
3851 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3852 else if (skb->protocol == ETH_P_IP)
3853 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3854 /* ... */
3855 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3856 return RTN_BROADCAST;
3857 else {
3858 u16 hdr_mac;
3859
3860 hdr_mac = *((u16 *)skb->data);
3861 /* tr multicast? */
3862 switch (card->info.link_type) {
3863 case QETH_LINK_TYPE_HSTR:
3864 case QETH_LINK_TYPE_LANE_TR:
3865 if ((hdr_mac == QETH_TR_MAC_NC) ||
3866 (hdr_mac == QETH_TR_MAC_C))
3867 return RTN_MULTICAST;
3868 /* eth or so multicast? */
3869 default:
3870 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3871 (hdr_mac == QETH_ETH_MAC_V6))
3872 return RTN_MULTICAST;
3873 }
3874 }
3875 return cast_type;
3876}
3877
3878static inline int
3879qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3880 int ipv, int cast_type)
3881{
3882 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3883 return card->qdio.default_out_queue;
3884 switch (card->qdio.no_out_queues) {
3885 case 4:
3886 if (cast_type && card->info.is_multicast_different)
3887 return card->info.is_multicast_different &
3888 (card->qdio.no_out_queues - 1);
3889 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3890 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3891 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3892 return 3;
3893 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3894 return 2;
3895 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3896 return 1;
3897 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3898 return 0;
3899 }
3900 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3901 return 3 - (skb->nh.iph->tos >> 6);
3902 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3903 /* TODO: IPv6!!! */
3904 }
3905 return card->qdio.default_out_queue;
3906 case 1: /* fallthrough for single-out-queue 1920-device */
3907 default:
3908 return card->qdio.default_out_queue;
3909 }
3910}
3911
3912static inline int
3913qeth_get_ip_version(struct sk_buff *skb)
3914{
3915 switch (skb->protocol) {
3916 case ETH_P_IPV6:
3917 return 6;
3918 case ETH_P_IP:
3919 return 4;
3920 default:
3921 return 0;
3922 }
3923}
3924
3925static inline int
3926qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3927 struct qeth_hdr **hdr, int ipv)
3928{
500f83ab 3929 int rc = 0;
1da177e4
LT		 3930#ifdef CONFIG_QETH_VLAN
3931 u16 *tag;
3932#endif
3933
3934 QETH_DBF_TEXT(trace, 6, "prepskb");
500f83ab
UB		 3935 if (card->info.type == QETH_CARD_TYPE_OSN) {
3936 *hdr = (struct qeth_hdr *)(*skb)->data;
3937 return rc;
3938 }
9cb90de8
FP		 3939 rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3940 if (rc)
3941 return rc;
1da177e4
LT		 3942#ifdef CONFIG_QETH_VLAN
3943 if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3944 ((ipv == 6) || card->options.layer2) ) {
3945 /*
3946 * Move the mac addresses (6 bytes src, 6 bytes dest)
3947 * to the beginning of the new header. We are using three
3948 * memcpys instead of one memmove to save cycles.
3949 */
3950 skb_push(*skb, VLAN_HLEN);
3951 memcpy((*skb)->data, (*skb)->data + 4, 4);
3952 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3953 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3954 tag = (u16 *)((*skb)->data + 12);
3955 /*
3956 * first two bytes = ETH_P_8021Q (0x8100)
3957 * second two bytes = VLANID
3958 */
3959 *tag = __constant_htons(ETH_P_8021Q);
3960 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3961 }
3962#endif
3963 *hdr = (struct qeth_hdr *)
3964 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3965 if (hdr == NULL)
3966 return -EINVAL;
3967 return 0;
3968}
3969
3970static inline u8
3971qeth_get_qeth_hdr_flags4(int cast_type)
3972{
3973 if (cast_type == RTN_MULTICAST)
3974 return QETH_CAST_MULTICAST;
3975 if (cast_type == RTN_BROADCAST)
3976 return QETH_CAST_BROADCAST;
3977 return QETH_CAST_UNICAST;
3978}
3979
3980static inline u8
3981qeth_get_qeth_hdr_flags6(int cast_type)
3982{
3983 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3984 if (cast_type == RTN_MULTICAST)
3985 return ct | QETH_CAST_MULTICAST;
3986 if (cast_type == RTN_ANYCAST)
3987 return ct | QETH_CAST_ANYCAST;
3988 if (cast_type == RTN_BROADCAST)
3989 return ct | QETH_CAST_BROADCAST;
3990 return ct | QETH_CAST_UNICAST;
3991}
3992
3993static inline void
3994qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3995 struct sk_buff *skb)
3996{
3997 __u16 hdr_mac;
3998
3999 if (!memcmp(skb->data+QETH_HEADER_SIZE,
4000 skb->dev->broadcast,6)) { /* broadcast? */
4001 *(__u32 *)hdr->hdr.l2.flags |=
4002 QETH_LAYER2_FLAG_BROADCAST << 8;
4003 return;
4004 }
4005 hdr_mac=*((__u16*)skb->data);
4006 /* tr multicast? */
4007 switch (card->info.link_type) {
4008 case QETH_LINK_TYPE_HSTR:
4009 case QETH_LINK_TYPE_LANE_TR:
4010 if ((hdr_mac == QETH_TR_MAC_NC) ||
4011 (hdr_mac == QETH_TR_MAC_C) )
4012 *(__u32 *)hdr->hdr.l2.flags |=
4013 QETH_LAYER2_FLAG_MULTICAST << 8;
4014 else
4015 *(__u32 *)hdr->hdr.l2.flags |=
4016 QETH_LAYER2_FLAG_UNICAST << 8;
4017 break;
4018 /* eth or so multicast? */
4019 default:
4020 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4021 (hdr_mac==QETH_ETH_MAC_V6) )
4022 *(__u32 *)hdr->hdr.l2.flags |=
4023 QETH_LAYER2_FLAG_MULTICAST << 8;
4024 else
4025 *(__u32 *)hdr->hdr.l2.flags |=
4026 QETH_LAYER2_FLAG_UNICAST << 8;
4027 }
4028}
4029
4030static inline void
4031qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4032 struct sk_buff *skb, int cast_type)
4033{
4034 memset(hdr, 0, sizeof(struct qeth_hdr));
4035 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4036
4037 /* set byte 0 to "0x02" and byte 3 to casting flags */
4038 if (cast_type==RTN_MULTICAST)
4039 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4040 else if (cast_type==RTN_BROADCAST)
4041 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4042 else
4043 qeth_layer2_get_packet_type(card, hdr, skb);
4044
4045 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4046#ifdef CONFIG_QETH_VLAN
4047 /* VSWITCH relies on the VLAN
4048 * information to be present in
4049 * the QDIO header */
4050 if ((card->vlangrp != NULL) &&
4051 vlan_tx_tag_present(skb)) {
4052 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4053 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4054 }
4055#endif
4056}
4057
4058void
4059qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4060 struct sk_buff *skb, int ipv, int cast_type)
4061{
4062 QETH_DBF_TEXT(trace, 6, "fillhdr");
4063
4064 memset(hdr, 0, sizeof(struct qeth_hdr));
4065 if (card->options.layer2) {
4066 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4067 return;
4068 }
4069 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4070 hdr->hdr.l3.ext_flags = 0;
4071#ifdef CONFIG_QETH_VLAN
4072 /*
4073 * before we're going to overwrite this location with next hop ip.
4074 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4075 */
4076 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4077 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4078 QETH_HDR_EXT_VLAN_FRAME :
4079 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4080 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4081 }
4082#endif /* CONFIG_QETH_VLAN */
4083 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4084 if (ipv == 4) { /* IPv4 */
4085 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4086 memset(hdr->hdr.l3.dest_addr, 0, 12);
4087 if ((skb->dst) && (skb->dst->neighbour)) {
4088 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4089 *((u32 *) skb->dst->neighbour->primary_key);
4090 } else {
4091 /* fill in destination address used in ip header */
4092 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4093 }
4094 } else if (ipv == 6) { /* IPv6 or passthru */
4095 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4096 if ((skb->dst) && (skb->dst->neighbour)) {
4097 memcpy(hdr->hdr.l3.dest_addr,
4098 skb->dst->neighbour->primary_key, 16);
4099 } else {
4100 /* fill in destination address used in ip header */
4101 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4102 }
4103 } else { /* passthrough */
e23dd9cd 4104 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
9a455819
FP		 4105 !memcmp(skb->data + sizeof(struct qeth_hdr) +
4106 sizeof(__u16), skb->dev->broadcast, 6)) {
4107 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4108 QETH_HDR_PASSTHRU;
e23dd9cd 4109 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
1da177e4 4110 skb->dev->broadcast, 6)) { /* broadcast? */
e23dd9cd
FP		 4111 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4112 QETH_HDR_PASSTHRU;
1da177e4
LT		 4113 } else {
4114 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4115 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4116 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4117 }
4118 }
4119}
4120
1da177e4
LT		 4121static inline void
4122__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
05e08a2a 4123 int is_tso, int *next_element_to_fill)
1da177e4
LT		 4124{
4125 int length = skb->len;
4126 int length_here;
4127 int element;
4128 char *data;
05e08a2a 4129 int first_lap ;
1da177e4
LT		 4130
4131 element = *next_element_to_fill;
4132 data = skb->data;
05e08a2a
FP		 4133 first_lap = (is_tso == 0 ? 1 : 0);
4134
1da177e4
LT		 4135 while (length > 0) {
4136 /* length_here is the remaining amount of data in this page */
4137 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4138 if (length < length_here)
4139 length_here = length;
05e08a2a 4140
1da177e4
LT		 4141 buffer->element[element].addr = data;
4142 buffer->element[element].length = length_here;
4143 length -= length_here;
05e08a2a 4144 if (!length) {
1da177e4
LT		 4145 if (first_lap)
4146 buffer->element[element].flags = 0;
4147 else
4148 buffer->element[element].flags =
4149 SBAL_FLAGS_LAST_FRAG;
4150 } else {
4151 if (first_lap)
4152 buffer->element[element].flags =
4153 SBAL_FLAGS_FIRST_FRAG;
4154 else
4155 buffer->element[element].flags =
4156 SBAL_FLAGS_MIDDLE_FRAG;
4157 }
4158 data += length_here;
4159 element++;
4160 first_lap = 0;
4161 }
4162 *next_element_to_fill = element;
4163}
4164
4165static inline int
4166qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4167 struct qeth_qdio_out_buffer *buf,
4168 struct sk_buff *skb)
4169{
4170 struct qdio_buffer *buffer;
05e08a2a
FP		 4171 struct qeth_hdr_tso *hdr;
4172 int flush_cnt = 0, hdr_len, large_send = 0;
1da177e4
LT		 4173
4174 QETH_DBF_TEXT(trace, 6, "qdfillbf");
05e08a2a 4175
1da177e4
LT		 4176 buffer = buf->buffer;
4177 atomic_inc(&skb->users);
4178 skb_queue_tail(&buf->skb_list, skb);
05e08a2a
FP		 4179
4180 hdr = (struct qeth_hdr_tso *) skb->data;
4181 /*check first on TSO ....*/
4182 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4183 int element = buf->next_element_to_fill;
4184
4185 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4186 /*fill first buffer entry only with header information */
4187 buffer->element[element].addr = skb->data;
4188 buffer->element[element].length = hdr_len;
4189 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4190 buf->next_element_to_fill++;
4191 skb->data += hdr_len;
4192 skb->len -= hdr_len;
4193 large_send = 1;
4194 }
1da177e4 4195 if (skb_shinfo(skb)->nr_frags == 0)
05e08a2a 4196 __qeth_fill_buffer(skb, buffer, large_send,
1da177e4
LT		 4197 (int *)&buf->next_element_to_fill);
4198 else
05e08a2a 4199 __qeth_fill_buffer_frag(skb, buffer, large_send,
1da177e4
LT		 4200 (int *)&buf->next_element_to_fill);
4201
4202 if (!queue->do_pack) {
4203 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4204 /* set state to PRIMED -> will be flushed */
4205 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4206 flush_cnt = 1;
4207 } else {
4208 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4209#ifdef CONFIG_QETH_PERF_STATS
4210 queue->card->perf_stats.skbs_sent_pack++;
4211#endif
4212 if (buf->next_element_to_fill >=
4213 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4214 /*
4215 * packed buffer if full -> set state PRIMED
4216 * -> will be flushed
4217 */
4218 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4219 flush_cnt = 1;
4220 }
4221 }
4222 return flush_cnt;
4223}
4224
4225static inline int
4226qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4227 struct sk_buff *skb, struct qeth_hdr *hdr,
4228 int elements_needed,
4229 struct qeth_eddp_context *ctx)
4230{
4231 struct qeth_qdio_out_buffer *buffer;
4232 int buffers_needed = 0;
4233 int flush_cnt = 0;
4234 int index;
4235
4236 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4237
4238 /* spin until we get the queue ... */
973bd993
MS		 4239 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4240 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4241 /* ... now we've got the queue */
4242 index = queue->next_buf_to_fill;
4243 buffer = &queue->bufs[queue->next_buf_to_fill];
4244 /*
4245 * check if buffer is empty to make sure that we do not 'overtake'
4246 * ourselves and try to fill a buffer that is already primed
4247 */
4248 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4249 card->stats.tx_dropped++;
4250 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4251 return -EBUSY;
4252 }
4253 if (ctx == NULL)
4254 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4255 QDIO_MAX_BUFFERS_PER_Q;
4256 else {
4257 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4258 if (buffers_needed < 0) {
4259 card->stats.tx_dropped++;
4260 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4261 return -EBUSY;
4262 }
4263 queue->next_buf_to_fill =
4264 (queue->next_buf_to_fill + buffers_needed) %
4265 QDIO_MAX_BUFFERS_PER_Q;
4266 }
4267 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4268 if (ctx == NULL) {
4269 qeth_fill_buffer(queue, buffer, skb);
4270 qeth_flush_buffers(queue, 0, index, 1);
4271 } else {
4272 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4273 WARN_ON(buffers_needed != flush_cnt);
4274 qeth_flush_buffers(queue, 0, index, flush_cnt);
4275 }
4276 return 0;
4277}
4278
4279static inline int
4280qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4281 struct sk_buff *skb, struct qeth_hdr *hdr,
4282 int elements_needed, struct qeth_eddp_context *ctx)
4283{
4284 struct qeth_qdio_out_buffer *buffer;
4285 int start_index;
4286 int flush_count = 0;
4287 int do_pack = 0;
4288 int tmp;
4289 int rc = 0;
4290
4291 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4292
4293 /* spin until we get the queue ... */
973bd993
MS		 4294 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4295 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4296 start_index = queue->next_buf_to_fill;
4297 buffer = &queue->bufs[queue->next_buf_to_fill];
4298 /*
4299 * check if buffer is empty to make sure that we do not 'overtake'
4300 * ourselves and try to fill a buffer that is already primed
4301 */
4302 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4303 card->stats.tx_dropped++;
4304 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4305 return -EBUSY;
4306 }
4307 /* check if we need to switch packing state of this queue */
4308 qeth_switch_to_packing_if_needed(queue);
4309 if (queue->do_pack){
4310 do_pack = 1;
4311 if (ctx == NULL) {
4312 /* does packet fit in current buffer? */
4313 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4314 buffer->next_element_to_fill) < elements_needed){
4315 /* ... no -> set state PRIMED */
4316 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4317 flush_count++;
4318 queue->next_buf_to_fill =
4319 (queue->next_buf_to_fill + 1) %
4320 QDIO_MAX_BUFFERS_PER_Q;
4321 buffer = &queue->bufs[queue->next_buf_to_fill];
4322 /* we did a step forward, so check buffer state
4323 * again */
4324 if (atomic_read(&buffer->state) !=
4325 QETH_QDIO_BUF_EMPTY){
4326 card->stats.tx_dropped++;
4327 qeth_flush_buffers(queue, 0, start_index, flush_count);
4328 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4329 return -EBUSY;
4330 }
4331 }
4332 } else {
4333 /* check if we have enough elements (including following
4334 * free buffers) to handle eddp context */
4335 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4336 printk("eddp tx_dropped 1\n");
4337 card->stats.tx_dropped++;
4338 rc = -EBUSY;
4339 goto out;
4340 }
4341 }
4342 }
4343 if (ctx == NULL)
4344 tmp = qeth_fill_buffer(queue, buffer, skb);
4345 else {
4346 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4347 if (tmp < 0) {
4348 printk("eddp tx_dropped 2\n");
4349 card->stats.tx_dropped++;
4350 rc = - EBUSY;
4351 goto out;
4352 }
4353 }
4354 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4355 QDIO_MAX_BUFFERS_PER_Q;
4356 flush_count += tmp;
4357out:
4358 if (flush_count)
4359 qeth_flush_buffers(queue, 0, start_index, flush_count);
d805d7c6
FP		 4360 else if (!atomic_read(&queue->set_pci_flags_count))
4361 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
1da177e4
LT		 4362 /*
4363 * queue->state will go from LOCKED -> UNLOCKED or from
4364 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4365 * (switch packing state or flush buffer to get another pci flag out).
4366 * In that case we will enter this loop
4367 */
4368 while (atomic_dec_return(&queue->state)){
4369 flush_count = 0;
4370 start_index = queue->next_buf_to_fill;
4371 /* check if we can go back to non-packing state */
4372 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4373 /*
4374 * check if we need to flush a packing buffer to get a pci
4375 * flag out on the queue
4376 */
4377 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4378 flush_count += qeth_flush_buffers_on_no_pci(queue);
4379 if (flush_count)
4380 qeth_flush_buffers(queue, 0, start_index, flush_count);
4381 }
4382 /* at this point the queue is UNLOCKED again */
4383#ifdef CONFIG_QETH_PERF_STATS
4384 if (do_pack)
4385 queue->card->perf_stats.bufs_sent_pack += flush_count;
4386#endif /* CONFIG_QETH_PERF_STATS */
4387
4388 return rc;
4389}
4390
05e08a2a 4391static inline int
9cb90de8
FP		 4392qeth_get_elements_no(struct qeth_card *card, void *hdr,
4393 struct sk_buff *skb, int elems)
05e08a2a
FP		 4394{
4395 int elements_needed = 0;
4396
4397 if (skb_shinfo(skb)->nr_frags > 0) {
4398 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4399 }
4400 if (elements_needed == 0 )
4401 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4402 + skb->len) >> PAGE_SHIFT);
9cb90de8 4403 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
05e08a2a 4404 PRINT_ERR("qeth_do_send_packet: invalid size of "
9cb90de8
FP		 4405 "IP packet (Number=%d / Length=%d). Discarded.\n",
4406 (elements_needed+elems), skb->len);
05e08a2a
FP		 4407 return 0;
4408 }
4409 return elements_needed;
4410}
4411
1da177e4
LT		 4412static inline int
4413qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4414{
4415 int ipv = 0;
4416 int cast_type;
4417 struct qeth_qdio_out_q *queue;
f3d242e8 4418 struct qeth_hdr *hdr = NULL;
1da177e4
LT		 4419 int elements_needed = 0;
4420 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4421 struct qeth_eddp_context *ctx = NULL;
4422 int rc;
4423
4424 QETH_DBF_TEXT(trace, 6, "sendpkt");
4425
4426 if (!card->options.layer2) {
4427 ipv = qeth_get_ip_version(skb);
4428 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4429 if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4430 card->stats.tx_dropped++;
4431 dev_kfree_skb_irq(skb);
4432 return 0;
4433 }
e23dd9cd
FP		 4434 if(card->dev->type == ARPHRD_IEEE802_TR){
4435 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4436 } else {
4437 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4438 }
1da177e4
LT		 4439 }
4440 }
500f83ab
UB		 4441 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4442 (skb->protocol == htons(ETH_P_IPV6))) {
4443 dev_kfree_skb_any(skb);
4444 return 0;
4445 }
1da177e4 4446 cast_type = qeth_get_cast_type(card, skb);
500f83ab
UB		 4447 if ((cast_type == RTN_BROADCAST) &&
4448 (card->info.broadcast_capable == 0)){
1da177e4
LT		 4449 card->stats.tx_dropped++;
4450 card->stats.tx_errors++;
4451 dev_kfree_skb_any(skb);
4452 return NETDEV_TX_OK;
4453 }
4454 queue = card->qdio.out_qs
4455 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4456
4457 if (skb_shinfo(skb)->tso_size)
4458 large_send = card->options.large_send;
4459
1da177e4
LT		 4460 /*are we able to do TSO ? If so ,prepare and send it from here */
4461 if ((large_send == QETH_LARGE_SEND_TSO) &&
4462 (cast_type == RTN_UNSPEC)) {
05e08a2a
FP		 4463 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4464 if (rc) {
4465 card->stats.tx_dropped++;
4466 card->stats.tx_errors++;
4467 dev_kfree_skb_any(skb);
4468 return NETDEV_TX_OK;
4469 }
4470 elements_needed++;
4471 } else {
4472 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4473 QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4474 return rc;
4475 }
500f83ab
UB		 4476 if (card->info.type != QETH_CARD_TYPE_OSN)
4477 qeth_fill_header(card, hdr, skb, ipv, cast_type);
1da177e4
LT		 4478 }
4479
1da177e4
LT		 4480 if (large_send == QETH_LARGE_SEND_EDDP) {
4481 ctx = qeth_eddp_create_context(card, skb, hdr);
4482 if (ctx == NULL) {
4483 PRINT_WARN("could not create eddp context\n");
4484 return -EINVAL;
4485 }
4486 } else {
9cb90de8
FP		 4487 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4488 elements_needed);
4489 if (!elems)
1da177e4 4490 return -EINVAL;
9cb90de8 4491 elements_needed += elems;
1da177e4
LT		 4492 }
4493
4494 if (card->info.type != QETH_CARD_TYPE_IQD)
4495 rc = qeth_do_send_packet(card, queue, skb, hdr,
4496 elements_needed, ctx);
4497 else
4498 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4499 elements_needed, ctx);
1da177e4
LT		 4500 if (!rc){
4501 card->stats.tx_packets++;
4502 card->stats.tx_bytes += skb->len;
4503#ifdef CONFIG_QETH_PERF_STATS
05e08a2a
FP		 4504 if (skb_shinfo(skb)->tso_size &&
4505 !(large_send == QETH_LARGE_SEND_NO)) {
1da177e4
LT		 4506 card->perf_stats.large_send_bytes += skb->len;
4507 card->perf_stats.large_send_cnt++;
4508 }
4509 if (skb_shinfo(skb)->nr_frags > 0){
4510 card->perf_stats.sg_skbs_sent++;
4511 /* nr_frags + skb->data */
4512 card->perf_stats.sg_frags_sent +=
4513 skb_shinfo(skb)->nr_frags + 1;
4514 }
4515#endif /* CONFIG_QETH_PERF_STATS */
4516 }
4517 if (ctx != NULL) {
4518 /* drop creator's reference */
4519 qeth_eddp_put_context(ctx);
4520 /* free skb; it's not referenced by a buffer */
4521 if (rc == 0)
4522 dev_kfree_skb_any(skb);
4523
4524 }
4525 return rc;
4526}
4527
4528static int
4529qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4530{
4531 struct qeth_card *card = (struct qeth_card *) dev->priv;
4532 int rc = 0;
4533
4534 switch(regnum){
4535 case MII_BMCR: /* Basic mode control register */
4536 rc = BMCR_FULLDPLX;
4537 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
500f83ab 4538 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
1da177e4
LT		 4539 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4540 rc |= BMCR_SPEED100;
4541 break;
4542 case MII_BMSR: /* Basic mode status register */
4543 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4544 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4545 BMSR_100BASE4;
4546 break;
4547 case MII_PHYSID1: /* PHYS ID 1 */
4548 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4549 dev->dev_addr[2];
4550 rc = (rc >> 5) & 0xFFFF;
4551 break;
4552 case MII_PHYSID2: /* PHYS ID 2 */
4553 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4554 break;
4555 case MII_ADVERTISE: /* Advertisement control reg */
4556 rc = ADVERTISE_ALL;
4557 break;
4558 case MII_LPA: /* Link partner ability reg */
4559 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4560 LPA_100BASE4 | LPA_LPACK;
4561 break;
4562 case MII_EXPANSION: /* Expansion register */
4563 break;
4564 case MII_DCOUNTER: /* disconnect counter */
4565 break;
4566 case MII_FCSCOUNTER: /* false carrier counter */
4567 break;
4568 case MII_NWAYTEST: /* N-way auto-neg test register */
4569 break;
4570 case MII_RERRCOUNTER: /* rx error counter */
4571 rc = card->stats.rx_errors;
4572 break;
4573 case MII_SREVISION: /* silicon revision */
4574 break;
4575 case MII_RESV1: /* reserved 1 */
4576 break;
4577 case MII_LBRERROR: /* loopback, rx, bypass error */
4578 break;
4579 case MII_PHYADDR: /* physical address */
4580 break;
4581 case MII_RESV2: /* reserved 2 */
4582 break;
4583 case MII_TPISTATUS: /* TPI status for 10mbps */
4584 break;
4585 case MII_NCONFIG: /* network interface config */
4586 break;
4587 default:
4588 rc = 0;
4589 break;
4590 }
4591 return rc;
4592}
4593
4594static void
4595qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4596{
4597 switch(regnum){
4598 case MII_BMCR: /* Basic mode control register */
4599 case MII_BMSR: /* Basic mode status register */
4600 case MII_PHYSID1: /* PHYS ID 1 */
4601 case MII_PHYSID2: /* PHYS ID 2 */
4602 case MII_ADVERTISE: /* Advertisement control reg */
4603 case MII_LPA: /* Link partner ability reg */
4604 case MII_EXPANSION: /* Expansion register */
4605 case MII_DCOUNTER: /* disconnect counter */
4606 case MII_FCSCOUNTER: /* false carrier counter */
4607 case MII_NWAYTEST: /* N-way auto-neg test register */
4608 case MII_RERRCOUNTER: /* rx error counter */
4609 case MII_SREVISION: /* silicon revision */
4610 case MII_RESV1: /* reserved 1 */
4611 case MII_LBRERROR: /* loopback, rx, bypass error */
4612 case MII_PHYADDR: /* physical address */
4613 case MII_RESV2: /* reserved 2 */
4614 case MII_TPISTATUS: /* TPI status for 10mbps */
4615 case MII_NCONFIG: /* network interface config */
4616 default:
4617 break;
4618 }
4619}
4620
4621static inline const char *
4622qeth_arp_get_error_cause(int *rc)
4623{
4624 switch (*rc) {
4625 case QETH_IPA_ARP_RC_FAILED:
4626 *rc = -EIO;
4627 return "operation failed";
4628 case QETH_IPA_ARP_RC_NOTSUPP:
4629 *rc = -EOPNOTSUPP;
4630 return "operation not supported";
4631 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4632 *rc = -EINVAL;
4633 return "argument out of range";
4634 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4635 *rc = -EOPNOTSUPP;
4636 return "query operation not supported";
4637 case QETH_IPA_ARP_RC_Q_NO_DATA:
4638 *rc = -ENOENT;
4639 return "no query data available";
4640 default:
4641 return "unknown error";
4642 }
4643}
4644
4645static int
4646qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4647 __u16, long);
4648
4649static int
4650qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4651{
4652 int tmp;
4653 int rc;
4654
4655 QETH_DBF_TEXT(trace,3,"arpstnoe");
4656
f3d242e8
FP		 4657 /*
4658 * currently GuestLAN only supports the ARP assist function
4659 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4660 * thus we say EOPNOTSUPP for this ARP function
4661 */
1da177e4
LT		 4662 if (card->info.guestlan)
4663 return -EOPNOTSUPP;
4664 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4665 PRINT_WARN("ARP processing not supported "
4666 "on %s!\n", QETH_CARD_IFNAME(card));
4667 return -EOPNOTSUPP;
4668 }
4669 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4670 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4671 no_entries);
4672 if (rc) {
4673 tmp = rc;
4674 PRINT_WARN("Could not set number of ARP entries on %s: "
4675 "%s (0x%x/%d)\n",
4676 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4677 tmp, tmp);
4678 }
4679 return rc;
4680}
4681
4682static inline void
4683qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4684 struct qeth_arp_query_data *qdata,
4685 int entry_size, int uentry_size)
4686{
4687 char *entry_ptr;
4688 char *uentry_ptr;
4689 int i;
4690
4691 entry_ptr = (char *)&qdata->data;
4692 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4693 for (i = 0; i < qdata->no_entries; ++i){
4694 /* strip off 32 bytes "media specific information" */
4695 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4696 entry_ptr += entry_size;
4697 uentry_ptr += uentry_size;
4698 }
4699}
4700
4701static int
4702qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4703 unsigned long data)
4704{
4705 struct qeth_ipa_cmd *cmd;
4706 struct qeth_arp_query_data *qdata;
4707 struct qeth_arp_query_info *qinfo;
4708 int entry_size;
4709 int uentry_size;
4710 int i;
4711
4712 QETH_DBF_TEXT(trace,4,"arpquecb");
4713
4714 qinfo = (struct qeth_arp_query_info *) reply->param;
4715 cmd = (struct qeth_ipa_cmd *) data;
4716 if (cmd->hdr.return_code) {
4717 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4718 return 0;
4719 }
4720 if (cmd->data.setassparms.hdr.return_code) {
4721 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4722 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4723 return 0;
4724 }
4725 qdata = &cmd->data.setassparms.data.query_arp;
4726 switch(qdata->reply_bits){
4727 case 5:
4728 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4729 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4730 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4731 break;
4732 case 7:
4733 /* fall through to default */
4734 default:
4735 /* tr is the same as eth -> entry7 */
4736 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4737 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4738 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4739 break;
4740 }
4741 /* check if there is enough room in userspace */
4742 if ((qinfo->udata_len - qinfo->udata_offset) <
4743 qdata->no_entries * uentry_size){
4744 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4745 cmd->hdr.return_code = -ENOMEM;
4746 PRINT_WARN("query ARP user space buffer is too small for "
4747 "the returned number of ARP entries. "
4748 "Aborting query!\n");
4749 goto out_error;
4750 }
4751 QETH_DBF_TEXT_(trace, 4, "anore%i",
4752 cmd->data.setassparms.hdr.number_of_replies);
4753 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4754 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4755
4756 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4757 /* strip off "media specific information" */
4758 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4759 uentry_size);
4760 } else
4761 /*copy entries to user buffer*/
4762 memcpy(qinfo->udata + qinfo->udata_offset,
4763 (char *)&qdata->data, qdata->no_entries*uentry_size);
4764
4765 qinfo->no_entries += qdata->no_entries;
4766 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4767 /* check if all replies received ... */
4768 if (cmd->data.setassparms.hdr.seq_no <
4769 cmd->data.setassparms.hdr.number_of_replies)
4770 return 1;
4771 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4772 /* keep STRIP_ENTRIES flag so the user program can distinguish
4773 * stripped entries from normal ones */
4774 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4775 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4776 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4777 return 0;
4778out_error:
4779 i = 0;
4780 memcpy(qinfo->udata, &i, 4);
4781 return 0;
4782}
4783
4784static int
4785qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4786 int len, int (*reply_cb)(struct qeth_card *,
4787 struct qeth_reply *,
4788 unsigned long),
4789 void *reply_param)
4790{
4791 QETH_DBF_TEXT(trace,4,"sendarp");
4792
4793 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4794 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4795 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4796 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4797 reply_cb, reply_param);
4798}
4799
4800static int
4801qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4802 int len, int (*reply_cb)(struct qeth_card *,
4803 struct qeth_reply *,
4804 unsigned long),
4805 void *reply_param)
4806{
4807 u16 s1, s2;
4808
4809 QETH_DBF_TEXT(trace,4,"sendsnmp");
4810
4811 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4812 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4813 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4814 /* adjust PDU length fields in IPA_PDU_HEADER */
4815 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4816 s2 = (u32) len;
4817 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4818 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4819 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4820 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4821 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4822 reply_cb, reply_param);
4823}
4824
4825static struct qeth_cmd_buffer *
4826qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4827 __u16, __u16, enum qeth_prot_versions);
4828static int
4829qeth_arp_query(struct qeth_card *card, char *udata)
4830{
4831 struct qeth_cmd_buffer *iob;
4832 struct qeth_arp_query_info qinfo = {0, };
4833 int tmp;
4834 int rc;
4835
4836 QETH_DBF_TEXT(trace,3,"arpquery");
4837
1da177e4
LT		 4838 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4839 IPA_ARP_PROCESSING)) {
4840 PRINT_WARN("ARP processing not supported "
4841 "on %s!\n", QETH_CARD_IFNAME(card));
4842 return -EOPNOTSUPP;
4843 }
4844 /* get size of userspace buffer and mask_bits -> 6 bytes */
4845 if (copy_from_user(&qinfo, udata, 6))
4846 return -EFAULT;
4847 if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4848 return -ENOMEM;
4849 memset(qinfo.udata, 0, qinfo.udata_len);
4850 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4851 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4852 IPA_CMD_ASS_ARP_QUERY_INFO,
4853 sizeof(int),QETH_PROT_IPV4);
4854
4855 rc = qeth_send_ipa_arp_cmd(card, iob,
4856 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4857 qeth_arp_query_cb, (void *)&qinfo);
4858 if (rc) {
4859 tmp = rc;
4860 PRINT_WARN("Error while querying ARP cache on %s: %s "
4861 "(0x%x/%d)\n",
4862 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4863 tmp, tmp);
4864 copy_to_user(udata, qinfo.udata, 4);
4865 } else {
4866 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4867 }
4868 kfree(qinfo.udata);
4869 return rc;
4870}
4871
4872/**
4873 * SNMP command callback
4874 */
4875static int
4876qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4877 unsigned long sdata)
4878{
4879 struct qeth_ipa_cmd *cmd;
4880 struct qeth_arp_query_info *qinfo;
4881 struct qeth_snmp_cmd *snmp;
4882 unsigned char *data;
4883 __u16 data_len;
4884
4885 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4886
4887 cmd = (struct qeth_ipa_cmd *) sdata;
4888 data = (unsigned char *)((char *)cmd - reply->offset);
4889 qinfo = (struct qeth_arp_query_info *) reply->param;
4890 snmp = &cmd->data.setadapterparms.data.snmp;
4891
4892 if (cmd->hdr.return_code) {
4893 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4894 return 0;
4895 }
4896 if (cmd->data.setadapterparms.hdr.return_code) {
4897 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4898 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4899 return 0;
4900 }
4901 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4902 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4903 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4904 else
4905 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4906
4907 /* check if there is enough room in userspace */
4908 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4909 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4910 cmd->hdr.return_code = -ENOMEM;
4911 return 0;
4912 }
4913 QETH_DBF_TEXT_(trace, 4, "snore%i",
4914 cmd->data.setadapterparms.hdr.used_total);
4915 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4916 /*copy entries to user buffer*/
4917 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4918 memcpy(qinfo->udata + qinfo->udata_offset,
4919 (char *)snmp,
4920 data_len + offsetof(struct qeth_snmp_cmd,data));
4921 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4922 } else {
4923 memcpy(qinfo->udata + qinfo->udata_offset,
4924 (char *)&snmp->request, data_len);
4925 }
4926 qinfo->udata_offset += data_len;
4927 /* check if all replies received ... */
4928 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4929 cmd->data.setadapterparms.hdr.used_total);
4930 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4931 cmd->data.setadapterparms.hdr.seq_no);
4932 if (cmd->data.setadapterparms.hdr.seq_no <
4933 cmd->data.setadapterparms.hdr.used_total)
4934 return 1;
4935 return 0;
4936}
4937
4938static struct qeth_cmd_buffer *
4939qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4940 enum qeth_prot_versions );
4941
4942static struct qeth_cmd_buffer *
4943qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4944{
4945 struct qeth_cmd_buffer *iob;
4946 struct qeth_ipa_cmd *cmd;
4947
4948 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4949 QETH_PROT_IPV4);
4950 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4951 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4952 cmd->data.setadapterparms.hdr.command_code = command;
4953 cmd->data.setadapterparms.hdr.used_total = 1;
4954 cmd->data.setadapterparms.hdr.seq_no = 1;
4955
4956 return iob;
4957}
4958
4959/**
4960 * function to send SNMP commands to OSA-E card
4961 */
4962static int
4963qeth_snmp_command(struct qeth_card *card, char *udata)
4964{
4965 struct qeth_cmd_buffer *iob;
4966 struct qeth_ipa_cmd *cmd;
4967 struct qeth_snmp_ureq *ureq;
4968 int req_len;
4969 struct qeth_arp_query_info qinfo = {0, };
4970 int rc = 0;
4971
4972 QETH_DBF_TEXT(trace,3,"snmpcmd");
4973
4974 if (card->info.guestlan)
4975 return -EOPNOTSUPP;
4976
4977 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4978 (!card->options.layer2) ) {
4979 PRINT_WARN("SNMP Query MIBS not supported "
4980 "on %s!\n", QETH_CARD_IFNAME(card));
4981 return -EOPNOTSUPP;
4982 }
4983 /* skip 4 bytes (data_len struct member) to get req_len */
4984 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4985 return -EFAULT;
4986 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4987 if (!ureq) {
4988 QETH_DBF_TEXT(trace, 2, "snmpnome");
4989 return -ENOMEM;
4990 }
4991 if (copy_from_user(ureq, udata,
4992 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4993 kfree(ureq);
4994 return -EFAULT;
4995 }
4996 qinfo.udata_len = ureq->hdr.data_len;
4997 if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4998 kfree(ureq);
4999 return -ENOMEM;
5000 }
5001 memset(qinfo.udata, 0, qinfo.udata_len);
5002 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5003
5004 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5005 QETH_SNMP_SETADP_CMDLENGTH + req_len);
5006 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5007 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5008 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5009 qeth_snmp_command_cb, (void *)&qinfo);
5010 if (rc)
5011 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5012 QETH_CARD_IFNAME(card), rc);
5013 else
5014 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
5015
5016 kfree(ureq);
5017 kfree(qinfo.udata);
5018 return rc;
5019}
5020
5021static int
5022qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5023 unsigned long);
5024
5025static int
6c951b90
FP		 5026qeth_default_setadapterparms_cb(struct qeth_card *card,
5027 struct qeth_reply *reply,
5028 unsigned long data);
5029static int
1da177e4
LT		 5030qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5031 __u16, long,
5032 int (*reply_cb)
5033 (struct qeth_card *, struct qeth_reply *, unsigned long),
5034 void *reply_param);
5035
5036static int
5037qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5038{
5039 struct qeth_cmd_buffer *iob;
5040 char buf[16];
5041 int tmp;
5042 int rc;
5043
5044 QETH_DBF_TEXT(trace,3,"arpadent");
5045
5046 /*
f3d242e8
FP		 5047 * currently GuestLAN only supports the ARP assist function
5048 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5049 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5050 */
5051 if (card->info.guestlan)
5052 return -EOPNOTSUPP;
5053 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5054 PRINT_WARN("ARP processing not supported "
5055 "on %s!\n", QETH_CARD_IFNAME(card));
5056 return -EOPNOTSUPP;
5057 }
5058
5059 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5060 IPA_CMD_ASS_ARP_ADD_ENTRY,
5061 sizeof(struct qeth_arp_cache_entry),
5062 QETH_PROT_IPV4);
5063 rc = qeth_send_setassparms(card, iob,
5064 sizeof(struct qeth_arp_cache_entry),
5065 (unsigned long) entry,
5066 qeth_default_setassparms_cb, NULL);
5067 if (rc) {
5068 tmp = rc;
5069 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5070 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5071 "%s (0x%x/%d)\n",
5072 buf, QETH_CARD_IFNAME(card),
5073 qeth_arp_get_error_cause(&rc), tmp, tmp);
5074 }
5075 return rc;
5076}
5077
5078static int
5079qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5080{
5081 struct qeth_cmd_buffer *iob;
5082 char buf[16] = {0, };
5083 int tmp;
5084 int rc;
5085
5086 QETH_DBF_TEXT(trace,3,"arprment");
5087
5088 /*
f3d242e8
FP		 5089 * currently GuestLAN only supports the ARP assist function
5090 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5091 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5092 */
5093 if (card->info.guestlan)
5094 return -EOPNOTSUPP;
5095 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5096 PRINT_WARN("ARP processing not supported "
5097 "on %s!\n", QETH_CARD_IFNAME(card));
5098 return -EOPNOTSUPP;
5099 }
5100 memcpy(buf, entry, 12);
5101 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5102 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5103 12,
5104 QETH_PROT_IPV4);
5105 rc = qeth_send_setassparms(card, iob,
5106 12, (unsigned long)buf,
5107 qeth_default_setassparms_cb, NULL);
5108 if (rc) {
5109 tmp = rc;
5110 memset(buf, 0, 16);
5111 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5112 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5113 "%s (0x%x/%d)\n",
5114 buf, QETH_CARD_IFNAME(card),
5115 qeth_arp_get_error_cause(&rc), tmp, tmp);
5116 }
5117 return rc;
5118}
5119
5120static int
5121qeth_arp_flush_cache(struct qeth_card *card)
5122{
5123 int rc;
5124 int tmp;
5125
5126 QETH_DBF_TEXT(trace,3,"arpflush");
5127
5128 /*
f3d242e8
FP		 5129 * currently GuestLAN only supports the ARP assist function
5130 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5131 * thus we say EOPNOTSUPP for this ARP function
5132 */
1da177e4
LT		 5133 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5134 return -EOPNOTSUPP;
5135 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5136 PRINT_WARN("ARP processing not supported "
5137 "on %s!\n", QETH_CARD_IFNAME(card));
5138 return -EOPNOTSUPP;
5139 }
5140 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5141 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5142 if (rc){
5143 tmp = rc;
5144 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5145 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5146 tmp, tmp);
5147 }
5148 return rc;
5149}
5150
5151static int
5152qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5153{
5154 struct qeth_card *card = (struct qeth_card *)dev->priv;
5155 struct qeth_arp_cache_entry arp_entry;
5156 struct mii_ioctl_data *mii_data;
5157 int rc = 0;
5158
5159 if (!card)
5160 return -ENODEV;
5161
5162 if ((card->state != CARD_STATE_UP) &&
5163 (card->state != CARD_STATE_SOFTSETUP))
5164 return -ENODEV;
5165
500f83ab
UB		 5166 if (card->info.type == QETH_CARD_TYPE_OSN)
5167 return -EPERM;
5168
1da177e4
LT		 5169 switch (cmd){
5170 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5171 if ( !capable(CAP_NET_ADMIN) ||
5172 (card->options.layer2) ) {
5173 rc = -EPERM;
5174 break;
5175 }
5176 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5177 break;
5178 case SIOC_QETH_ARP_QUERY_INFO:
5179 if ( !capable(CAP_NET_ADMIN) ||
5180 (card->options.layer2) ) {
5181 rc = -EPERM;
5182 break;
5183 }
5184 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5185 break;
5186 case SIOC_QETH_ARP_ADD_ENTRY:
5187 if ( !capable(CAP_NET_ADMIN) ||
5188 (card->options.layer2) ) {
5189 rc = -EPERM;
5190 break;
5191 }
5192 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5193 sizeof(struct qeth_arp_cache_entry)))
5194 rc = -EFAULT;
5195 else
5196 rc = qeth_arp_add_entry(card, &arp_entry);
5197 break;
5198 case SIOC_QETH_ARP_REMOVE_ENTRY:
5199 if ( !capable(CAP_NET_ADMIN) ||
5200 (card->options.layer2) ) {
5201 rc = -EPERM;
5202 break;
5203 }
5204 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5205 sizeof(struct qeth_arp_cache_entry)))
5206 rc = -EFAULT;
5207 else
5208 rc = qeth_arp_remove_entry(card, &arp_entry);
5209 break;
5210 case SIOC_QETH_ARP_FLUSH_CACHE:
5211 if ( !capable(CAP_NET_ADMIN) ||
5212 (card->options.layer2) ) {
5213 rc = -EPERM;
5214 break;
5215 }
5216 rc = qeth_arp_flush_cache(card);
5217 break;
5218 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5219 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5220 break;
5221 case SIOC_QETH_GET_CARD_TYPE:
5222 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5223 !card->info.guestlan)
5224 return 1;
5225 return 0;
5226 break;
5227 case SIOCGMIIPHY:
5228 mii_data = if_mii(rq);
5229 mii_data->phy_id = 0;
5230 break;
5231 case SIOCGMIIREG:
5232 mii_data = if_mii(rq);
5233 if (mii_data->phy_id != 0)
5234 rc = -EINVAL;
5235 else
5236 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5237 mii_data->reg_num);
5238 break;
5239 case SIOCSMIIREG:
5240 rc = -EOPNOTSUPP;
5241 break;
5242 /* TODO: remove return if qeth_mdio_write does something */
5243 if (!capable(CAP_NET_ADMIN)){
5244 rc = -EPERM;
5245 break;
5246 }
5247 mii_data = if_mii(rq);
5248 if (mii_data->phy_id != 0)
5249 rc = -EINVAL;
5250 else
5251 qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5252 mii_data->val_in);
5253 break;
5254 default:
5255 rc = -EOPNOTSUPP;
5256 }
5257 if (rc)
5258 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5259 return rc;
5260}
5261
5262static struct net_device_stats *
5263qeth_get_stats(struct net_device *dev)
5264{
5265 struct qeth_card *card;
5266
5267 card = (struct qeth_card *) (dev->priv);
5268
5269 QETH_DBF_TEXT(trace,5,"getstat");
5270
5271 return &card->stats;
5272}
5273
5274static int
5275qeth_change_mtu(struct net_device *dev, int new_mtu)
5276{
5277 struct qeth_card *card;
5278 char dbf_text[15];
5279
5280 card = (struct qeth_card *) (dev->priv);
5281
5282 QETH_DBF_TEXT(trace,4,"chgmtu");
5283 sprintf(dbf_text, "%8x", new_mtu);
5284 QETH_DBF_TEXT(trace,4,dbf_text);
5285
5286 if (new_mtu < 64)
5287 return -EINVAL;
5288 if (new_mtu > 65535)
5289 return -EINVAL;
5290 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5291 (!qeth_mtu_is_valid(card, new_mtu)))
5292 return -EINVAL;
5293 dev->mtu = new_mtu;
5294 return 0;
5295}
5296
5297#ifdef CONFIG_QETH_VLAN
5298static void
5299qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5300{
5301 struct qeth_card *card;
5302 unsigned long flags;
5303
5304 QETH_DBF_TEXT(trace,4,"vlanreg");
5305
5306 card = (struct qeth_card *) dev->priv;
5307 spin_lock_irqsave(&card->vlanlock, flags);
5308 card->vlangrp = grp;
5309 spin_unlock_irqrestore(&card->vlanlock, flags);
5310}
5311
5312static inline void
5313qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5314 unsigned short vid)
5315{
5316 int i;
5317 struct sk_buff *skb;
5318 struct sk_buff_head tmp_list;
5319
5320 skb_queue_head_init(&tmp_list);
5321 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5322 while ((skb = skb_dequeue(&buf->skb_list))){
5323 if (vlan_tx_tag_present(skb) &&
5324 (vlan_tx_tag_get(skb) == vid)) {
5325 atomic_dec(&skb->users);
5326 dev_kfree_skb(skb);
5327 } else
5328 skb_queue_tail(&tmp_list, skb);
5329 }
5330 }
5331 while ((skb = skb_dequeue(&tmp_list)))
5332 skb_queue_tail(&buf->skb_list, skb);
5333}
5334
5335static void
5336qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5337{
5338 int i, j;
5339
5340 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5341 for (i = 0; i < card->qdio.no_out_queues; ++i){
5342 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5343 qeth_free_vlan_buffer(card, &card->qdio.
5344 out_qs[i]->bufs[j], vid);
5345 }
5346}
5347
5348static void
5349qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5350{
5351 struct in_device *in_dev;
5352 struct in_ifaddr *ifa;
5353 struct qeth_ipaddr *addr;
5354
5355 QETH_DBF_TEXT(trace, 4, "frvaddr4");
6c88ad2d 5356
1da177e4 5357 rcu_read_lock();
e5ed6399 5358 in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
1da177e4
LT		 5359 if (!in_dev)
5360 goto out;
5361 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5362 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5363 if (addr){
5364 addr->u.a4.addr = ifa->ifa_address;
5365 addr->u.a4.mask = ifa->ifa_mask;
5366 addr->type = QETH_IP_TYPE_NORMAL;
5367 if (!qeth_delete_ip(card, addr))
5368 kfree(addr);
5369 }
5370 }
5371out:
5372 rcu_read_unlock();
5373}
5374
5375static void
5376qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5377{
5378#ifdef CONFIG_QETH_IPV6
5379 struct inet6_dev *in6_dev;
5380 struct inet6_ifaddr *ifa;
5381 struct qeth_ipaddr *addr;
5382
5383 QETH_DBF_TEXT(trace, 4, "frvaddr6");
6c88ad2d 5384
1da177e4
LT		 5385 in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5386 if (!in6_dev)
5387 return;
5388 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5389 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5390 if (addr){
5391 memcpy(&addr->u.a6.addr, &ifa->addr,
5392 sizeof(struct in6_addr));
5393 addr->u.a6.pfxlen = ifa->prefix_len;
5394 addr->type = QETH_IP_TYPE_NORMAL;
5395 if (!qeth_delete_ip(card, addr))
5396 kfree(addr);
5397 }
5398 }
5399 in6_dev_put(in6_dev);
5400#endif /* CONFIG_QETH_IPV6 */
5401}
5402
6c88ad2d
FP		 5403static void
5404qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5405{
5406 if (card->options.layer2 || !card->vlangrp)
5407 return;
5408 qeth_free_vlan_addresses4(card, vid);
5409 qeth_free_vlan_addresses6(card, vid);
5410}
5411
508cc2b0
FP		 5412static int
5413qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5414 struct qeth_reply *reply,
5415 unsigned long data)
5416{
5417 struct qeth_ipa_cmd *cmd;
5418
5419 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5420 cmd = (struct qeth_ipa_cmd *) data;
5421 if (cmd->hdr.return_code) {
5422 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5423 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5424 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5425 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5426 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5427 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5428 }
5429 return 0;
5430}
5431
5432static int
1da177e4
LT		 5433qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5434 enum qeth_ipa_cmds ipacmd)
5435{
1da177e4
LT		 5436 struct qeth_ipa_cmd *cmd;
5437 struct qeth_cmd_buffer *iob;
5438
5439 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5440 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5441 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5442 cmd->data.setdelvlan.vlan_id = i;
508cc2b0
FP		 5443 return qeth_send_ipa_cmd(card, iob,
5444 qeth_layer2_send_setdelvlan_cb, NULL);
1da177e4
LT		 5445}
5446
5447static void
5448qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5449{
5450 unsigned short i;
5451
5452 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5453
5454 if (!card->vlangrp)
5455 return;
5456 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5457 if (card->vlangrp->vlan_devices[i] == NULL)
5458 continue;
5459 if (clear)
5460 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5461 else
5462 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5463 }
5464}
5465
5466/*add_vid is layer 2 used only ....*/
5467static void
5468qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5469{
5470 struct qeth_card *card;
5471
5472 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5473
5474 card = (struct qeth_card *) dev->priv;
5475 if (!card->options.layer2)
5476 return;
5477 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5478}
5479
5480/*... kill_vid used for both modes*/
5481static void
5482qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5483{
5484 struct qeth_card *card;
5485 unsigned long flags;
5486
5487 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5488
5489 card = (struct qeth_card *) dev->priv;
5490 /* free all skbs for the vlan device */
5491 qeth_free_vlan_skbs(card, vid);
5492 spin_lock_irqsave(&card->vlanlock, flags);
5493 /* unregister IP addresses of vlan device */
6c88ad2d 5494 qeth_free_vlan_addresses(card, vid);
1da177e4
LT		 5495 if (card->vlangrp)
5496 card->vlangrp->vlan_devices[vid] = NULL;
5497 spin_unlock_irqrestore(&card->vlanlock, flags);
5498 if (card->options.layer2)
5499 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5500 qeth_set_multicast_list(card->dev);
5501}
5502#endif
6c951b90
FP		 5503/**
5504 * Examine hardware response to SET_PROMISC_MODE
5505 */
5506static int
5507qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5508 struct qeth_reply *reply,
5509 unsigned long data)
5510{
5511 struct qeth_ipa_cmd *cmd;
5512 struct qeth_ipacmd_setadpparms *setparms;
5513
5514 QETH_DBF_TEXT(trace,4,"prmadpcb");
5515
5516 cmd = (struct qeth_ipa_cmd *) data;
5517 setparms = &(cmd->data.setadapterparms);
5518
5519 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5520 if (cmd->hdr.return_code) {
5521 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5522 setparms->data.mode = SET_PROMISC_MODE_OFF;
5523 }
5524 card->info.promisc_mode = setparms->data.mode;
5525 return 0;
5526}
5527/*
5528 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5529 */
5530static void
5531qeth_setadp_promisc_mode(struct qeth_card *card)
5532{
5533 enum qeth_ipa_promisc_modes mode;
5534 struct net_device *dev = card->dev;
5535 struct qeth_cmd_buffer *iob;
5536 struct qeth_ipa_cmd *cmd;
5537
5538 QETH_DBF_TEXT(trace, 4, "setprom");
5539
5540 if (((dev->flags & IFF_PROMISC) &&
5541 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5542 (!(dev->flags & IFF_PROMISC) &&
5543 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5544 return;
5545 mode = SET_PROMISC_MODE_OFF;
5546 if (dev->flags & IFF_PROMISC)
5547 mode = SET_PROMISC_MODE_ON;
5548 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5549
5550 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5551 sizeof(struct qeth_ipacmd_setadpparms));
5552 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5553 cmd->data.setadapterparms.data.mode = mode;
5554 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5555}
1da177e4
LT		 5556
5557/**
5558 * set multicast address on card
5559 */
5560static void
5561qeth_set_multicast_list(struct net_device *dev)
5562{
5563 struct qeth_card *card = (struct qeth_card *) dev->priv;
5564
500f83ab
UB		 5565 if (card->info.type == QETH_CARD_TYPE_OSN)
5566 return ;
5567
66cc5d5a 5568 QETH_DBF_TEXT(trace, 3, "setmulti");
1da177e4 5569 qeth_delete_mc_addresses(card);
6c88ad2d
FP		 5570 if (card->options.layer2) {
5571 qeth_layer2_add_multicast(card);
5572 goto out;
5573 }
1da177e4
LT		 5574 qeth_add_multicast_ipv4(card);
5575#ifdef CONFIG_QETH_IPV6
5576 qeth_add_multicast_ipv6(card);
5577#endif
6c88ad2d 5578out:
1da177e4
LT		 5579 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5580 schedule_work(&card->kernel_thread_starter);
6c951b90
FP		 5581 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5582 return;
5583 if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5584 schedule_work(&card->kernel_thread_starter);
1da177e4
LT		 5585}
5586
5587static int
5588qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5589{
5590 return 0;
5591}
5592
5593static void
5594qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5595{
5596 if (dev->type == ARPHRD_IEEE802_TR)
5597 ip_tr_mc_map(ipm, mac);
5598 else
5599 ip_eth_mc_map(ipm, mac);
5600}
5601
5602static struct qeth_ipaddr *
5603qeth_get_addr_buffer(enum qeth_prot_versions prot)
5604{
5605 struct qeth_ipaddr *addr;
5606
5607 addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5608 if (addr == NULL) {
5609 PRINT_WARN("Not enough memory to add address\n");
5610 return NULL;
5611 }
5612 memset(addr,0,sizeof(struct qeth_ipaddr));
5613 addr->type = QETH_IP_TYPE_NORMAL;
5614 addr->proto = prot;
5615 return addr;
5616}
5617
500f83ab
UB		 5618int
5619qeth_osn_assist(struct net_device *dev,
5620 void *data,
5621 int data_len)
5622{
5623 struct qeth_cmd_buffer *iob;
5624 struct qeth_card *card;
5625 int rc;
5626
5627 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5628 if (!dev)
5629 return -ENODEV;
5630 card = (struct qeth_card *)dev->priv;
5631 if (!card)
5632 return -ENODEV;
5633 if ((card->state != CARD_STATE_UP) &&
5634 (card->state != CARD_STATE_SOFTSETUP))
5635 return -ENODEV;
5636 iob = qeth_wait_for_buffer(&card->write);
5637 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5638 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5639 return rc;
5640}
5641
5642static struct net_device *
5643qeth_netdev_by_devno(unsigned char *read_dev_no)
5644{
5645 struct qeth_card *card;
5646 struct net_device *ndev;
5647 unsigned char *readno;
5648 __u16 temp_dev_no, card_dev_no;
5649 char *endp;
5650 unsigned long flags;
5651
5652 ndev = NULL;
5653 memcpy(&temp_dev_no, read_dev_no, 2);
5654 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5655 list_for_each_entry(card, &qeth_card_list.list, list) {
5656 readno = CARD_RDEV_ID(card);
5657 readno += (strlen(readno) - 4);
5658 card_dev_no = simple_strtoul(readno, &endp, 16);
5659 if (card_dev_no == temp_dev_no) {
5660 ndev = card->dev;
5661 break;
5662 }
5663 }
5664 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5665 return ndev;
5666}
5667
5668int
5669qeth_osn_register(unsigned char *read_dev_no,
5670 struct net_device **dev,
5671 int (*assist_cb)(struct net_device *, void *),
5672 int (*data_cb)(struct sk_buff *))
5673{
5674 struct qeth_card * card;
5675
5676 QETH_DBF_TEXT(trace, 2, "osnreg");
5677 *dev = qeth_netdev_by_devno(read_dev_no);
5678 if (*dev == NULL)
5679 return -ENODEV;
5680 card = (struct qeth_card *)(*dev)->priv;
5681 if (!card)
5682 return -ENODEV;
5683 if ((assist_cb == NULL) || (data_cb == NULL))
5684 return -EINVAL;
5685 card->osn_info.assist_cb = assist_cb;
5686 card->osn_info.data_cb = data_cb;
5687 return 0;
5688}
5689
5690void
5691qeth_osn_deregister(struct net_device * dev)
5692{
5693 struct qeth_card *card;
5694
5695 QETH_DBF_TEXT(trace, 2, "osndereg");
5696 if (!dev)
5697 return;
5698 card = (struct qeth_card *)dev->priv;
5699 if (!card)
5700 return;
5701 card->osn_info.assist_cb = NULL;
5702 card->osn_info.data_cb = NULL;
5703 return;
5704}
5705
1da177e4
LT		 5706static void
5707qeth_delete_mc_addresses(struct qeth_card *card)
5708{
5709 struct qeth_ipaddr *iptodo;
5710 unsigned long flags;
5711
5712 QETH_DBF_TEXT(trace,4,"delmc");
5713 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5714 if (!iptodo) {
5715 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5716 return;
5717 }
5718 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5719 spin_lock_irqsave(&card->ip_lock, flags);
5720 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5721 kfree(iptodo);
5722 spin_unlock_irqrestore(&card->ip_lock, flags);
5723}
5724
5725static inline void
5726qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5727{
5728 struct qeth_ipaddr *ipm;
5729 struct ip_mc_list *im4;
5730 char buf[MAX_ADDR_LEN];
5731
5732 QETH_DBF_TEXT(trace,4,"addmc");
5733 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5734 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5735 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5736 if (!ipm)
5737 continue;
5738 ipm->u.a4.addr = im4->multiaddr;
5739 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5740 ipm->is_multicast = 1;
5741 if (!qeth_add_ip(card,ipm))
5742 kfree(ipm);
5743 }
5744}
5745
5746static inline void
5747qeth_add_vlan_mc(struct qeth_card *card)
5748{
5749#ifdef CONFIG_QETH_VLAN
5750 struct in_device *in_dev;
5751 struct vlan_group *vg;
5752 int i;
5753
5754 QETH_DBF_TEXT(trace,4,"addmcvl");
5755 if ( ((card->options.layer2 == 0) &&
5756 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5757 (card->vlangrp == NULL) )
5758 return ;
5759
5760 vg = card->vlangrp;
5761 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5762 if (vg->vlan_devices[i] == NULL ||
5763 !(vg->vlan_devices[i]->flags & IFF_UP))
5764 continue;
5765 in_dev = in_dev_get(vg->vlan_devices[i]);
5766 if (!in_dev)
5767 continue;
5768 read_lock(&in_dev->mc_list_lock);
5769 qeth_add_mc(card,in_dev);
5770 read_unlock(&in_dev->mc_list_lock);
5771 in_dev_put(in_dev);
5772 }
5773#endif
5774}
5775
5776static void
5777qeth_add_multicast_ipv4(struct qeth_card *card)
5778{
5779 struct in_device *in4_dev;
5780
5781 QETH_DBF_TEXT(trace,4,"chkmcv4");
5782 in4_dev = in_dev_get(card->dev);
5783 if (in4_dev == NULL)
5784 return;
5785 read_lock(&in4_dev->mc_list_lock);
5786 qeth_add_mc(card, in4_dev);
5787 qeth_add_vlan_mc(card);
5788 read_unlock(&in4_dev->mc_list_lock);
5789 in_dev_put(in4_dev);
5790}
5791
6c88ad2d
FP		 5792static void
5793qeth_layer2_add_multicast(struct qeth_card *card)
5794{
5795 struct qeth_ipaddr *ipm;
5796 struct dev_mc_list *dm;
5797
5798 QETH_DBF_TEXT(trace,4,"L2addmc");
5799 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5800 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5801 if (!ipm)
5802 continue;
5803 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5804 ipm->is_multicast = 1;
5805 if (!qeth_add_ip(card, ipm))
5806 kfree(ipm);
5807 }
5808}
5809
1da177e4
LT		 5810#ifdef CONFIG_QETH_IPV6
5811static inline void
5812qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5813{
5814 struct qeth_ipaddr *ipm;
5815 struct ifmcaddr6 *im6;
5816 char buf[MAX_ADDR_LEN];
5817
5818 QETH_DBF_TEXT(trace,4,"addmc6");
5819 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5820 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5821 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5822 if (!ipm)
5823 continue;
5824 ipm->is_multicast = 1;
5825 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5826 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5827 sizeof(struct in6_addr));
5828 if (!qeth_add_ip(card,ipm))
5829 kfree(ipm);
5830 }
5831}
5832
5833static inline void
5834qeth_add_vlan_mc6(struct qeth_card *card)
5835{
5836#ifdef CONFIG_QETH_VLAN
5837 struct inet6_dev *in_dev;
5838 struct vlan_group *vg;
5839 int i;
5840
5841 QETH_DBF_TEXT(trace,4,"admc6vl");
5842 if ( ((card->options.layer2 == 0) &&
5843 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5844 (card->vlangrp == NULL))
5845 return ;
5846
5847 vg = card->vlangrp;
5848 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5849 if (vg->vlan_devices[i] == NULL ||
5850 !(vg->vlan_devices[i]->flags & IFF_UP))
5851 continue;
5852 in_dev = in6_dev_get(vg->vlan_devices[i]);
5853 if (!in_dev)
5854 continue;
5855 read_lock(&in_dev->lock);
5856 qeth_add_mc6(card,in_dev);
5857 read_unlock(&in_dev->lock);
5858 in6_dev_put(in_dev);
5859 }
5860#endif /* CONFIG_QETH_VLAN */
5861}
5862
5863static void
5864qeth_add_multicast_ipv6(struct qeth_card *card)
5865{
5866 struct inet6_dev *in6_dev;
5867
5868 QETH_DBF_TEXT(trace,4,"chkmcv6");
6c6b3e7c 5869 if (!qeth_is_supported(card, IPA_IPV6))
1da177e4 5870 return ;
1da177e4
LT		 5871 in6_dev = in6_dev_get(card->dev);
5872 if (in6_dev == NULL)
5873 return;
5874 read_lock(&in6_dev->lock);
5875 qeth_add_mc6(card, in6_dev);
5876 qeth_add_vlan_mc6(card);
5877 read_unlock(&in6_dev->lock);
5878 in6_dev_put(in6_dev);
5879}
5880#endif /* CONFIG_QETH_IPV6 */
5881
5882static int
5883qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5884 enum qeth_ipa_cmds ipacmd,
5885 int (*reply_cb) (struct qeth_card *,
5886 struct qeth_reply*,
5887 unsigned long))
5888{
5889 struct qeth_ipa_cmd *cmd;
5890 struct qeth_cmd_buffer *iob;
5891
5892 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5893 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5894 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5895 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5896 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5897 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5898}
5899
5900static int
5901qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5902 struct qeth_reply *reply,
5903 unsigned long data)
5904{
5905 struct qeth_ipa_cmd *cmd;
5906 __u8 *mac;
5907
5908 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5909 cmd = (struct qeth_ipa_cmd *) data;
5910 mac = &cmd->data.setdelmac.mac[0];
5911 /* MAC already registered, needed in couple/uncouple case */
5912 if (cmd->hdr.return_code == 0x2005) {
5913 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5914 "already existing on %s \n",
5915 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5916 QETH_CARD_IFNAME(card));
5917 cmd->hdr.return_code = 0;
5918 }
5919 if (cmd->hdr.return_code)
5920 PRINT_ERR("Could not set group MAC " \
5921 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5922 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5923 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5924 return 0;
5925}
5926
5927static int
5928qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5929{
5930 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5931 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5932 qeth_layer2_send_setgroupmac_cb);
5933}
5934
5935static int
5936qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5937 struct qeth_reply *reply,
5938 unsigned long data)
5939{
5940 struct qeth_ipa_cmd *cmd;
5941 __u8 *mac;
5942
5943 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5944 cmd = (struct qeth_ipa_cmd *) data;
5945 mac = &cmd->data.setdelmac.mac[0];
5946 if (cmd->hdr.return_code)
5947 PRINT_ERR("Could not delete group MAC " \
5948 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5949 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5950 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5951 return 0;
5952}
5953
5954static int
5955qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5956{
5957 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5958 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5959 qeth_layer2_send_delgroupmac_cb);
5960}
5961
5962static int
5963qeth_layer2_send_setmac_cb(struct qeth_card *card,
5964 struct qeth_reply *reply,
5965 unsigned long data)
5966{
5967 struct qeth_ipa_cmd *cmd;
5968
5969 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5970 cmd = (struct qeth_ipa_cmd *) data;
5971 if (cmd->hdr.return_code) {
5972 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5973 PRINT_WARN("Error in registering MAC address on " \
5974 "device %s: x%x\n", CARD_BUS_ID(card),
5975 cmd->hdr.return_code);
e08d88cc 5976 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5977 cmd->hdr.return_code = -EIO;
5978 } else {
e08d88cc 5979 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5980 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5981 OSA_ADDR_LEN);
5982 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5983 "successfully registered on device %s\n",
5984 card->dev->dev_addr[0], card->dev->dev_addr[1],
5985 card->dev->dev_addr[2], card->dev->dev_addr[3],
5986 card->dev->dev_addr[4], card->dev->dev_addr[5],
5987 card->dev->name);
5988 }
5989 return 0;
5990}
5991
5992static int
5993qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5994{
5995 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5996 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5997 qeth_layer2_send_setmac_cb);
5998}
5999
6000static int
6001qeth_layer2_send_delmac_cb(struct qeth_card *card,
6002 struct qeth_reply *reply,
6003 unsigned long data)
6004{
6005 struct qeth_ipa_cmd *cmd;
6006
6007 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6008 cmd = (struct qeth_ipa_cmd *) data;
6009 if (cmd->hdr.return_code) {
6010 PRINT_WARN("Error in deregistering MAC address on " \
6011 "device %s: x%x\n", CARD_BUS_ID(card),
6012 cmd->hdr.return_code);
6013 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6014 cmd->hdr.return_code = -EIO;
6015 return 0;
6016 }
e08d88cc 6017 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 6018
6019 return 0;
6020}
6021static int
6022qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6023{
6024 QETH_DBF_TEXT(trace, 2, "L2Delmac");
e08d88cc 6025 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
1da177e4
LT		 6026 return 0;
6027 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6028 qeth_layer2_send_delmac_cb);
6029}
6030
6031static int
6032qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6033{
6034 struct sockaddr *addr = p;
6035 struct qeth_card *card;
6036 int rc = 0;
6037
6038 QETH_DBF_TEXT(trace, 3, "setmac");
6039
6040 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6041 QETH_DBF_TEXT(trace, 3, "setmcINV");
6042 return -EOPNOTSUPP;
6043 }
6044 card = (struct qeth_card *) dev->priv;
6045
6046 if (!card->options.layer2) {
e08d88cc 6047 PRINT_WARN("Setting MAC address on %s is not supported "
1da177e4
LT		 6048 "in Layer 3 mode.\n", dev->name);
6049 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6050 return -EOPNOTSUPP;
6051 }
500f83ab
UB		 6052 if (card->info.type == QETH_CARD_TYPE_OSN) {
6053 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6054 dev->name);
6055 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6056 return -EOPNOTSUPP;
6057 }
1da177e4
LT		 6058 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6059 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6060 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6061 if (!rc)
6062 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6063 return rc;
6064}
6065
6066static void
6067qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6068 __u8 command, enum qeth_prot_versions prot)
6069{
6070 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6071 cmd->hdr.command = command;
6072 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6073 cmd->hdr.seqno = card->seqno.ipa;
6074 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6075 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6076 if (card->options.layer2)
6077 cmd->hdr.prim_version_no = 2;
6078 else
6079 cmd->hdr.prim_version_no = 1;
6080 cmd->hdr.param_count = 1;
6081 cmd->hdr.prot_version = prot;
6082 cmd->hdr.ipa_supported = 0;
6083 cmd->hdr.ipa_enabled = 0;
6084}
6085
6086static struct qeth_cmd_buffer *
6087qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6088 enum qeth_prot_versions prot)
6089{
6090 struct qeth_cmd_buffer *iob;
6091 struct qeth_ipa_cmd *cmd;
6092
6093 iob = qeth_wait_for_buffer(&card->write);
6094 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6095 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6096
6097 return iob;
6098}
6099
6100static int
6101qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6102{
6103 int rc;
6104 struct qeth_cmd_buffer *iob;
6105 struct qeth_ipa_cmd *cmd;
6106
6107 QETH_DBF_TEXT(trace,4,"setdelmc");
6108
6109 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6110 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6111 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6112 if (addr->proto == QETH_PROT_IPV6)
6113 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6114 sizeof(struct in6_addr));
6115 else
6116 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6117
6118 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6119
6120 return rc;
6121}
6122static inline void
6123qeth_fill_netmask(u8 *netmask, unsigned int len)
6124{
6125 int i,j;
6126 for (i=0;i<16;i++) {
6127 j=(len)-(i*8);
6128 if (j >= 8)
6129 netmask[i] = 0xff;
6130 else if (j > 0)
6131 netmask[i] = (u8)(0xFF00>>j);
6132 else
6133 netmask[i] = 0;
6134 }
6135}
6136
6137static int
6138qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6139 int ipacmd, unsigned int flags)
6140{
6141 int rc;
6142 struct qeth_cmd_buffer *iob;
6143 struct qeth_ipa_cmd *cmd;
6144 __u8 netmask[16];
6145
6146 QETH_DBF_TEXT(trace,4,"setdelip");
6147 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6148
6149 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6150 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6151 if (addr->proto == QETH_PROT_IPV6) {
6152 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6153 sizeof(struct in6_addr));
6154 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6155 memcpy(cmd->data.setdelip6.mask, netmask,
6156 sizeof(struct in6_addr));
6157 cmd->data.setdelip6.flags = flags;
6158 } else {
6159 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6160 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6161 cmd->data.setdelip4.flags = flags;
6162 }
6163
6164 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6165
6166 return rc;
6167}
6168
6169static int
6170qeth_layer2_register_addr_entry(struct qeth_card *card,
6171 struct qeth_ipaddr *addr)
6172{
6173 if (!addr->is_multicast)
6174 return 0;
6175 QETH_DBF_TEXT(trace, 2, "setgmac");
6176 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6177 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6178}
6179
6180static int
6181qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6182 struct qeth_ipaddr *addr)
6183{
6184 if (!addr->is_multicast)
6185 return 0;
6186 QETH_DBF_TEXT(trace, 2, "delgmac");
6187 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6188 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6189}
6190
6191static int
6192qeth_layer3_register_addr_entry(struct qeth_card *card,
6193 struct qeth_ipaddr *addr)
6194{
6195 char buf[50];
6196 int rc;
6197 int cnt = 3;
6198
6199 if (addr->proto == QETH_PROT_IPV4) {
6200 QETH_DBF_TEXT(trace, 2,"setaddr4");
6201 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6202 } else if (addr->proto == QETH_PROT_IPV6) {
6203 QETH_DBF_TEXT(trace, 2, "setaddr6");
6204 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6205 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6206 } else {
6207 QETH_DBF_TEXT(trace, 2, "setaddr?");
6208 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6209 }
6210 do {
6211 if (addr->is_multicast)
6212 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6213 else
6214 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6215 addr->set_flags);
6216 if (rc)
6217 QETH_DBF_TEXT(trace, 2, "failed");
6218 } while ((--cnt > 0) && rc);
6219 if (rc){
6220 QETH_DBF_TEXT(trace, 2, "FAILED");
6221 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6222 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6223 buf, rc, rc);
6224 }
6225 return rc;
6226}
6227
6228static int
6229qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6230 struct qeth_ipaddr *addr)
6231{
6232 //char buf[50];
6233 int rc;
6234
6235 if (addr->proto == QETH_PROT_IPV4) {
6236 QETH_DBF_TEXT(trace, 2,"deladdr4");
6237 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6238 } else if (addr->proto == QETH_PROT_IPV6) {
6239 QETH_DBF_TEXT(trace, 2, "deladdr6");
6240 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6241 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6242 } else {
6243 QETH_DBF_TEXT(trace, 2, "deladdr?");
6244 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6245 }
6246 if (addr->is_multicast)
6247 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6248 else
6249 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6250 addr->del_flags);
6251 if (rc) {
6252 QETH_DBF_TEXT(trace, 2, "failed");
6253 /* TODO: re-activate this warning as soon as we have a
6254 * clean mirco code
6255 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6256 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6257 buf, rc);
6258 */
6259 }
6260 return rc;
6261}
6262
6263static int
6264qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6265{
6266 if (card->options.layer2)
6267 return qeth_layer2_register_addr_entry(card, addr);
6268
6269 return qeth_layer3_register_addr_entry(card, addr);
6270}
6271
6272static int
6273qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6274{
6275 if (card->options.layer2)
6276 return qeth_layer2_deregister_addr_entry(card, addr);
6277
6278 return qeth_layer3_deregister_addr_entry(card, addr);
6279}
6280
6281static u32
6282qeth_ethtool_get_tx_csum(struct net_device *dev)
6283{
6284 /* We may need to say that we support tx csum offload if
6285 * we do EDDP or TSO. There are discussions going on to
6286 * enforce rules in the stack and in ethtool that make
6287 * SG and TSO depend on HW_CSUM. At the moment there are
6288 * no such rules....
6289 * If we say yes here, we have to checksum outbound packets
6290 * any time. */
6291 return 0;
6292}
6293
6294static int
6295qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6296{
6297 return -EINVAL;
6298}
6299
6300static u32
6301qeth_ethtool_get_rx_csum(struct net_device *dev)
6302{
6303 struct qeth_card *card = (struct qeth_card *)dev->priv;
6304
6305 return (card->options.checksum_type == HW_CHECKSUMMING);
6306}
6307
6308static int
6309qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6310{
6311 struct qeth_card *card = (struct qeth_card *)dev->priv;
6312
6313 if ((card->state != CARD_STATE_DOWN) &&
6314 (card->state != CARD_STATE_RECOVER))
6315 return -EPERM;
6316 if (data)
6317 card->options.checksum_type = HW_CHECKSUMMING;
6318 else
6319 card->options.checksum_type = SW_CHECKSUMMING;
6320 return 0;
6321}
6322
6323static u32
6324qeth_ethtool_get_sg(struct net_device *dev)
6325{
6326 struct qeth_card *card = (struct qeth_card *)dev->priv;
6327
6328 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6329 (dev->features & NETIF_F_SG));
6330}
6331
6332static int
6333qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6334{
6335 struct qeth_card *card = (struct qeth_card *)dev->priv;
6336
6337 if (data) {
6338 if (card->options.large_send != QETH_LARGE_SEND_NO)
6339 dev->features |= NETIF_F_SG;
6340 else {
6341 dev->features &= ~NETIF_F_SG;
6342 return -EINVAL;
6343 }
6344 } else
6345 dev->features &= ~NETIF_F_SG;
6346 return 0;
6347}
6348
6349static u32
6350qeth_ethtool_get_tso(struct net_device *dev)
6351{
6352 struct qeth_card *card = (struct qeth_card *)dev->priv;
6353
6354 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6355 (dev->features & NETIF_F_TSO));
6356}
6357
6358static int
6359qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6360{
6361 struct qeth_card *card = (struct qeth_card *)dev->priv;
6362
6363 if (data) {
6364 if (card->options.large_send != QETH_LARGE_SEND_NO)
6365 dev->features |= NETIF_F_TSO;
6366 else {
6367 dev->features &= ~NETIF_F_TSO;
6368 return -EINVAL;
6369 }
6370 } else
6371 dev->features &= ~NETIF_F_TSO;
6372 return 0;
6373}
6374
6375static struct ethtool_ops qeth_ethtool_ops = {
6376 .get_tx_csum = qeth_ethtool_get_tx_csum,
6377 .set_tx_csum = qeth_ethtool_set_tx_csum,
6378 .get_rx_csum = qeth_ethtool_get_rx_csum,
6379 .set_rx_csum = qeth_ethtool_set_rx_csum,
6380 .get_sg = qeth_ethtool_get_sg,
6381 .set_sg = qeth_ethtool_set_sg,
6382 .get_tso = qeth_ethtool_get_tso,
6383 .set_tso = qeth_ethtool_set_tso,
6384};
6385
6386static int
6387qeth_netdev_init(struct net_device *dev)
6388{
6389 struct qeth_card *card;
6390
6391 card = (struct qeth_card *) dev->priv;
6392
6393 QETH_DBF_TEXT(trace,3,"initdev");
6394
6395 dev->tx_timeout = &qeth_tx_timeout;
6396 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6397 dev->open = qeth_open;
6398 dev->stop = qeth_stop;
6399 dev->hard_start_xmit = qeth_hard_start_xmit;
6400 dev->do_ioctl = qeth_do_ioctl;
6401 dev->get_stats = qeth_get_stats;
6402 dev->change_mtu = qeth_change_mtu;
6403 dev->neigh_setup = qeth_neigh_setup;
6404 dev->set_multicast_list = qeth_set_multicast_list;
6405#ifdef CONFIG_QETH_VLAN
6406 dev->vlan_rx_register = qeth_vlan_rx_register;
6407 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6408 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6409#endif
6410 dev->hard_header = card->orig_hard_header;
6411 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6412 dev->rebuild_header = NULL;
6413 dev->hard_header = NULL;
6414 if (card->options.fake_ll)
6415 dev->hard_header = qeth_fake_header;
6416 dev->header_cache_update = NULL;
6417 dev->hard_header_cache = NULL;
6418 }
6419#ifdef CONFIG_QETH_IPV6
6420 /*IPv6 address autoconfiguration stuff*/
6421 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6422 card->dev->dev_id = card->info.unique_id & 0xffff;
6423#endif
6424 dev->hard_header_parse = NULL;
6425 dev->set_mac_address = qeth_layer2_set_mac_address;
6426 dev->flags |= qeth_get_netdev_flags(card);
6427 if ((card->options.fake_broadcast) ||
6428 (card->info.broadcast_capable))
6429 dev->flags |= IFF_BROADCAST;
6430 dev->hard_header_len =
6431 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6432 dev->addr_len = OSA_ADDR_LEN;
6433 dev->mtu = card->info.initial_mtu;
500f83ab
UB		 6434 if (card->info.type != QETH_CARD_TYPE_OSN)
6435 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
1da177e4
LT		 6436 SET_MODULE_OWNER(dev);
6437 return 0;
6438}
6439
6440static void
6441qeth_init_func_level(struct qeth_card *card)
6442{
6443 if (card->ipato.enabled) {
6444 if (card->info.type == QETH_CARD_TYPE_IQD)
6445 card->info.func_level =
6446 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6447 else
6448 card->info.func_level =
6449 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6450 } else {
6451 if (card->info.type == QETH_CARD_TYPE_IQD)
500f83ab 6452 /*FIXME:why do we have same values for dis and ena for osae??? */
1da177e4
LT		 6453 card->info.func_level =
6454 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6455 else
6456 card->info.func_level =
6457 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6458 }
6459}
6460
6461/**
6462 * hardsetup card, initialize MPC and QDIO stuff
6463 */
6464static int
6465qeth_hardsetup_card(struct qeth_card *card)
6466{
6467 int retries = 3;
6468 int rc;
6469
6470 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6471
6472retry:
6473 if (retries < 3){
6474 PRINT_WARN("Retrying to do IDX activates.\n");
6475 ccw_device_set_offline(CARD_DDEV(card));
6476 ccw_device_set_offline(CARD_WDEV(card));
6477 ccw_device_set_offline(CARD_RDEV(card));
6478 ccw_device_set_online(CARD_RDEV(card));
6479 ccw_device_set_online(CARD_WDEV(card));
6480 ccw_device_set_online(CARD_DDEV(card));
6481 }
500f83ab 6482 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 6483 if (rc == -ERESTARTSYS) {
6484 QETH_DBF_TEXT(setup, 2, "break1");
6485 return rc;
6486 } else if (rc) {
6487 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6488 if (--retries < 0)
6489 goto out;
6490 else
6491 goto retry;
6492 }
6493 if ((rc = qeth_get_unitaddr(card))){
6494 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6495 return rc;
6496 }
6497 qeth_init_tokens(card);
6498 qeth_init_func_level(card);
6499 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6500 if (rc == -ERESTARTSYS) {
6501 QETH_DBF_TEXT(setup, 2, "break2");
6502 return rc;
6503 } else if (rc) {
6504 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6505 if (--retries < 0)
6506 goto out;
6507 else
6508 goto retry;
6509 }
6510 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6511 if (rc == -ERESTARTSYS) {
6512 QETH_DBF_TEXT(setup, 2, "break3");
6513 return rc;
6514 } else if (rc) {
6515 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6516 if (--retries < 0)
6517 goto out;
6518 else
6519 goto retry;
6520 }
6521 if ((rc = qeth_mpc_initialize(card))){
6522 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6523 goto out;
6524 }
6525 /*network device will be recovered*/
6526 if (card->dev) {
6527 card->dev->hard_header = card->orig_hard_header;
6528 return 0;
6529 }
6530 /* at first set_online allocate netdev */
6531 card->dev = qeth_get_netdevice(card->info.type,
6532 card->info.link_type);
6533 if (!card->dev){
500f83ab
UB		 6534 qeth_qdio_clear_card(card, card->info.type !=
6535 QETH_CARD_TYPE_IQD);
1da177e4
LT		 6536 rc = -ENODEV;
6537 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6538 goto out;
6539 }
6540 card->dev->priv = card;
6541 card->orig_hard_header = card->dev->hard_header;
6542 card->dev->type = qeth_get_arphdr_type(card->info.type,
6543 card->info.link_type);
6544 card->dev->init = qeth_netdev_init;
6545 return 0;
6546out:
6547 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6548 return rc;
6549}
6550
6551static int
6552qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6553 unsigned long data)
6554{
6555 struct qeth_ipa_cmd *cmd;
6556
6557 QETH_DBF_TEXT(trace,4,"defadpcb");
6558
6559 cmd = (struct qeth_ipa_cmd *) data;
6560 if (cmd->hdr.return_code == 0){
6561 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6562 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6563 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6564#ifdef CONFIG_QETH_IPV6
6565 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6566 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6567#endif
6568 }
6569 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6570 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6571 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6572 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6573 }
6574 return 0;
6575}
6576
6577static int
6578qeth_default_setadapterparms_cb(struct qeth_card *card,
6579 struct qeth_reply *reply,
6580 unsigned long data)
6581{
6582 struct qeth_ipa_cmd *cmd;
6583
6584 QETH_DBF_TEXT(trace,4,"defadpcb");
6585
6586 cmd = (struct qeth_ipa_cmd *) data;
6587 if (cmd->hdr.return_code == 0)
6588 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6589 return 0;
6590}
6591
6c951b90
FP		 6592
6593
1da177e4
LT		 6594static int
6595qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6596 unsigned long data)
6597{
6598 struct qeth_ipa_cmd *cmd;
6599
6600 QETH_DBF_TEXT(trace,3,"quyadpcb");
6601
6602 cmd = (struct qeth_ipa_cmd *) data;
6603 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6604 card->info.link_type =
6605 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6606 card->options.adp.supported_funcs =
6607 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6608 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6609}
6610
6611static int
6612qeth_query_setadapterparms(struct qeth_card *card)
6613{
6614 int rc;
6615 struct qeth_cmd_buffer *iob;
6616
6617 QETH_DBF_TEXT(trace,3,"queryadp");
6618 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6619 sizeof(struct qeth_ipacmd_setadpparms));
6620 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6621 return rc;
6622}
6623
6624static int
6625qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6626 struct qeth_reply *reply,
6627 unsigned long data)
6628{
6629 struct qeth_ipa_cmd *cmd;
6630
6631 QETH_DBF_TEXT(trace,4,"chgmaccb");
6632
6633 cmd = (struct qeth_ipa_cmd *) data;
e08d88cc
FP		 6634 if (!card->options.layer2 || card->info.guestlan ||
6635 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6636 memcpy(card->dev->dev_addr,
6637 &cmd->data.setadapterparms.data.change_addr.addr,
6638 OSA_ADDR_LEN);
6639 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6640 }
1da177e4
LT		 6641 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6642 return 0;
6643}
6644
6645static int
6646qeth_setadpparms_change_macaddr(struct qeth_card *card)
6647{
6648 int rc;
6649 struct qeth_cmd_buffer *iob;
6650 struct qeth_ipa_cmd *cmd;
6651
6652 QETH_DBF_TEXT(trace,4,"chgmac");
6653
6654 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6655 sizeof(struct qeth_ipacmd_setadpparms));
6656 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6657 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6658 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6659 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6660 card->dev->dev_addr, OSA_ADDR_LEN);
6661 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6662 NULL);
6663 return rc;
6664}
6665
6666static int
6667qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6668{
6669 int rc;
6670 struct qeth_cmd_buffer *iob;
6671 struct qeth_ipa_cmd *cmd;
6672
6673 QETH_DBF_TEXT(trace,4,"adpmode");
6674
6675 iob = qeth_get_adapter_cmd(card, command,
6676 sizeof(struct qeth_ipacmd_setadpparms));
6677 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6678 cmd->data.setadapterparms.data.mode = mode;
6679 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6680 NULL);
6681 return rc;
6682}
6683
6684static inline int
6685qeth_setadapter_hstr(struct qeth_card *card)
6686{
6687 int rc;
6688
6689 QETH_DBF_TEXT(trace,4,"adphstr");
6690
6691 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6692 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6693 card->options.broadcast_mode);
6694 if (rc)
6695 PRINT_WARN("couldn't set broadcast mode on "
6696 "device %s: x%x\n",
6697 CARD_BUS_ID(card), rc);
6698 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6699 card->options.macaddr_mode);
6700 if (rc)
6701 PRINT_WARN("couldn't set macaddr mode on "
6702 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6703 return rc;
6704 }
6705 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6706 PRINT_WARN("set adapter parameters not available "
6707 "to set broadcast mode, using ALLRINGS "
6708 "on device %s:\n", CARD_BUS_ID(card));
6709 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6710 PRINT_WARN("set adapter parameters not available "
6711 "to set macaddr mode, using NONCANONICAL "
6712 "on device %s:\n", CARD_BUS_ID(card));
6713 return 0;
6714}
6715
6716static int
6717qeth_setadapter_parms(struct qeth_card *card)
6718{
6719 int rc;
6720
6721 QETH_DBF_TEXT(setup, 2, "setadprm");
6722
6723 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6724 PRINT_WARN("set adapter parameters not supported "
6725 "on device %s.\n",
6726 CARD_BUS_ID(card));
6727 QETH_DBF_TEXT(setup, 2, " notsupp");
6728 return 0;
6729 }
6730 rc = qeth_query_setadapterparms(card);
6731 if (rc) {
6732 PRINT_WARN("couldn't set adapter parameters on device %s: "
6733 "x%x\n", CARD_BUS_ID(card), rc);
6734 return rc;
6735 }
6736 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6737 rc = qeth_setadpparms_change_macaddr(card);
6738 if (rc)
6739 PRINT_WARN("couldn't get MAC address on "
6740 "device %s: x%x\n",
6741 CARD_BUS_ID(card), rc);
6742 }
6743
6744 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6745 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6746 rc = qeth_setadapter_hstr(card);
6747
6748 return rc;
6749}
6750
6751static int
6752qeth_layer2_initialize(struct qeth_card *card)
6753{
6754 int rc = 0;
6755
6756
6757 QETH_DBF_TEXT(setup, 2, "doL2init");
6758 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6759
6c951b90
FP		 6760 rc = qeth_query_setadapterparms(card);
6761 if (rc) {
6762 PRINT_WARN("could not query adapter parameters on device %s: "
6763 "x%x\n", CARD_BUS_ID(card), rc);
6764 }
6765
1da177e4
LT		 6766 rc = qeth_setadpparms_change_macaddr(card);
6767 if (rc) {
6768 PRINT_WARN("couldn't get MAC address on "
6769 "device %s: x%x\n",
6770 CARD_BUS_ID(card), rc);
6771 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6772 return rc;
6773 }
6774 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6775
6776 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6777 if (rc)
6778 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6779 return 0;
6780}
6781
6782
6783static int
6784qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6785 enum qeth_prot_versions prot)
6786{
6787 int rc;
6788 struct qeth_cmd_buffer *iob;
6789
6790 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6791 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6792
6793 return rc;
6794}
6795
6796static int
6797qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6798{
6799 int rc;
6800
6801 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6802
6803 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6804 return rc;
6805}
6806
6807static int
6808qeth_send_stoplan(struct qeth_card *card)
6809{
6810 int rc = 0;
6811
6812 /*
6813 * TODO: according to the IPA format document page 14,
6814 * TCP/IP (we!) never issue a STOPLAN
6815 * is this right ?!?
6816 */
6817 QETH_DBF_TEXT(trace, 2, "stoplan");
6818
6819 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6820 return rc;
6821}
6822
6823static int
6824qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6825 unsigned long data)
6826{
6827 struct qeth_ipa_cmd *cmd;
6828
6829 QETH_DBF_TEXT(setup, 2, "qipasscb");
6830
6831 cmd = (struct qeth_ipa_cmd *) data;
6832 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6833 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6834 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
9123e0d7
UB		 6835 /* Disable IPV6 support hard coded for Hipersockets */
6836 if(card->info.type == QETH_CARD_TYPE_IQD)
6837 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
1da177e4
LT		 6838 } else {
6839#ifdef CONFIG_QETH_IPV6
6840 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6841 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6842#endif
6843 }
6844 QETH_DBF_TEXT(setup, 2, "suppenbl");
6845 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6846 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6847 return 0;
6848}
6849
6850static int
6851qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6852{
6853 int rc;
6854 struct qeth_cmd_buffer *iob;
6855
6856 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6857 if (card->options.layer2) {
6858 QETH_DBF_TEXT(setup, 2, "noprmly2");
6859 return -EPERM;
6860 }
6861
6862 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6863 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6864 return rc;
6865}
6866
6867static struct qeth_cmd_buffer *
6868qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6869 __u16 cmd_code, __u16 len,
6870 enum qeth_prot_versions prot)
6871{
6872 struct qeth_cmd_buffer *iob;
6873 struct qeth_ipa_cmd *cmd;
6874
6875 QETH_DBF_TEXT(trace,4,"getasscm");
6876 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6877
6878 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6879 cmd->data.setassparms.hdr.assist_no = ipa_func;
6880 cmd->data.setassparms.hdr.length = 8 + len;
6881 cmd->data.setassparms.hdr.command_code = cmd_code;
6882 cmd->data.setassparms.hdr.return_code = 0;
6883 cmd->data.setassparms.hdr.seq_no = 0;
6884
6885 return iob;
6886}
6887
6888static int
6889qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6890 __u16 len, long data,
6891 int (*reply_cb)
6892 (struct qeth_card *,struct qeth_reply *,unsigned long),
6893 void *reply_param)
6894{
6895 int rc;
6896 struct qeth_ipa_cmd *cmd;
6897
6898 QETH_DBF_TEXT(trace,4,"sendassp");
6899
6900 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6901 if (len <= sizeof(__u32))
6902 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6903 else if (len > sizeof(__u32))
6904 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6905
6906 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6907 return rc;
6908}
6909
6910#ifdef CONFIG_QETH_IPV6
6911static int
6912qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6913 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6914
6915{
6916 int rc;
6917 struct qeth_cmd_buffer *iob;
6918
6919 QETH_DBF_TEXT(trace,4,"simassp6");
6920 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6921 0, QETH_PROT_IPV6);
6922 rc = qeth_send_setassparms(card, iob, 0, 0,
6923 qeth_default_setassparms_cb, NULL);
6924 return rc;
6925}
6926#endif
6927
6928static int
6929qeth_send_simple_setassparms(struct qeth_card *card,
6930 enum qeth_ipa_funcs ipa_func,
6931 __u16 cmd_code, long data)
6932{
6933 int rc;
6934 int length = 0;
6935 struct qeth_cmd_buffer *iob;
6936
6937 QETH_DBF_TEXT(trace,4,"simassp4");
6938 if (data)
6939 length = sizeof(__u32);
6940 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6941 length, QETH_PROT_IPV4);
6942 rc = qeth_send_setassparms(card, iob, length, data,
6943 qeth_default_setassparms_cb, NULL);
6944 return rc;
6945}
6946
6947static inline int
6948qeth_start_ipa_arp_processing(struct qeth_card *card)
6949{
6950 int rc;
6951
6952 QETH_DBF_TEXT(trace,3,"ipaarp");
6953
6954 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6955 PRINT_WARN("ARP processing not supported "
6956 "on %s!\n", QETH_CARD_IFNAME(card));
6957 return 0;
6958 }
6959 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6960 IPA_CMD_ASS_START, 0);
6961 if (rc) {
6962 PRINT_WARN("Could not start ARP processing "
6963 "assist on %s: 0x%x\n",
6964 QETH_CARD_IFNAME(card), rc);
6965 }
6966 return rc;
6967}
6968
6969static int
6970qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6971{
6972 int rc;
6973
6974 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6975
6976 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6977 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6978 QETH_CARD_IFNAME(card));
6979 return -EOPNOTSUPP;
6980 }
6981
6982 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6983 IPA_CMD_ASS_START, 0);
6984 if (rc) {
6985 PRINT_WARN("Could not start Hardware IP fragmentation "
6986 "assist on %s: 0x%x\n",
6987 QETH_CARD_IFNAME(card), rc);
6988 } else
6989 PRINT_INFO("Hardware IP fragmentation enabled \n");
6990 return rc;
6991}
6992
6993static int
6994qeth_start_ipa_source_mac(struct qeth_card *card)
6995{
6996 int rc;
6997
6998 QETH_DBF_TEXT(trace,3,"stsrcmac");
6999
7000 if (!card->options.fake_ll)
7001 return -EOPNOTSUPP;
7002
7003 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7004 PRINT_INFO("Inbound source address not "
7005 "supported on %s\n", QETH_CARD_IFNAME(card));
7006 return -EOPNOTSUPP;
7007 }
7008
7009 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7010 IPA_CMD_ASS_START, 0);
7011 if (rc)
7012 PRINT_WARN("Could not start inbound source "
7013 "assist on %s: 0x%x\n",
7014 QETH_CARD_IFNAME(card), rc);
7015 return rc;
7016}
7017
7018static int
7019qeth_start_ipa_vlan(struct qeth_card *card)
7020{
7021 int rc = 0;
7022
7023 QETH_DBF_TEXT(trace,3,"strtvlan");
7024
7025#ifdef CONFIG_QETH_VLAN
7026 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7027 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7028 return -EOPNOTSUPP;
7029 }
7030
7031 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7032 IPA_CMD_ASS_START,0);
7033 if (rc) {
7034 PRINT_WARN("Could not start vlan "
7035 "assist on %s: 0x%x\n",
7036 QETH_CARD_IFNAME(card), rc);
7037 } else {
7038 PRINT_INFO("VLAN enabled \n");
7039 card->dev->features |=
7040 NETIF_F_HW_VLAN_FILTER |
7041 NETIF_F_HW_VLAN_TX |
7042 NETIF_F_HW_VLAN_RX;
7043 }
7044#endif /* QETH_VLAN */
7045 return rc;
7046}
7047
7048static int
7049qeth_start_ipa_multicast(struct qeth_card *card)
7050{
7051 int rc;
7052
7053 QETH_DBF_TEXT(trace,3,"stmcast");
7054
7055 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7056 PRINT_WARN("Multicast not supported on %s\n",
7057 QETH_CARD_IFNAME(card));
7058 return -EOPNOTSUPP;
7059 }
7060
7061 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7062 IPA_CMD_ASS_START,0);
7063 if (rc) {
7064 PRINT_WARN("Could not start multicast "
7065 "assist on %s: rc=%i\n",
7066 QETH_CARD_IFNAME(card), rc);
7067 } else {
7068 PRINT_INFO("Multicast enabled\n");
7069 card->dev->flags |= IFF_MULTICAST;
7070 }
7071 return rc;
7072}
7073
7074#ifdef CONFIG_QETH_IPV6
7075static int
7076qeth_softsetup_ipv6(struct qeth_card *card)
7077{
7078 int rc;
7079
7080 QETH_DBF_TEXT(trace,3,"softipv6");
7081
7082 netif_stop_queue(card->dev);
7083 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7084 if (rc) {
7085 PRINT_ERR("IPv6 startlan failed on %s\n",
7086 QETH_CARD_IFNAME(card));
7087 return rc;
7088 }
7089 netif_wake_queue(card->dev);
7090 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7091 if (rc) {
7092 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7093 QETH_CARD_IFNAME(card));
7094 return rc;
7095 }
7096 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7097 IPA_CMD_ASS_START, 3);
7098 if (rc) {
7099 PRINT_WARN("IPv6 start assist (version 4) failed "
7100 "on %s: 0x%x\n",
7101 QETH_CARD_IFNAME(card), rc);
7102 return rc;
7103 }
7104 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7105 IPA_CMD_ASS_START);
7106 if (rc) {
7107 PRINT_WARN("IPV6 start assist (version 6) failed "
7108 "on %s: 0x%x\n",
7109 QETH_CARD_IFNAME(card), rc);
7110 return rc;
7111 }
7112 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7113 IPA_CMD_ASS_START);
7114 if (rc) {
7115 PRINT_WARN("Could not enable passthrough "
7116 "on %s: 0x%x\n",
7117 QETH_CARD_IFNAME(card), rc);
7118 return rc;
7119 }
7120 PRINT_INFO("IPV6 enabled \n");
7121 return 0;
7122}
7123
7124#endif
7125
7126static int
7127qeth_start_ipa_ipv6(struct qeth_card *card)
7128{
7129 int rc = 0;
7130#ifdef CONFIG_QETH_IPV6
7131 QETH_DBF_TEXT(trace,3,"strtipv6");
7132
7133 if (!qeth_is_supported(card, IPA_IPV6)) {
7134 PRINT_WARN("IPv6 not supported on %s\n",
7135 QETH_CARD_IFNAME(card));
7136 return 0;
7137 }
7138 rc = qeth_softsetup_ipv6(card);
7139#endif
7140 return rc ;
7141}
7142
7143static int
7144qeth_start_ipa_broadcast(struct qeth_card *card)
7145{
7146 int rc;
7147
7148 QETH_DBF_TEXT(trace,3,"stbrdcst");
7149 card->info.broadcast_capable = 0;
7150 if (!qeth_is_supported(card, IPA_FILTERING)) {
7151 PRINT_WARN("Broadcast not supported on %s\n",
7152 QETH_CARD_IFNAME(card));
7153 rc = -EOPNOTSUPP;
7154 goto out;
7155 }
7156 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7157 IPA_CMD_ASS_START, 0);
7158 if (rc) {
7159 PRINT_WARN("Could not enable broadcasting filtering "
7160 "on %s: 0x%x\n",
7161 QETH_CARD_IFNAME(card), rc);
7162 goto out;
7163 }
7164
7165 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7166 IPA_CMD_ASS_CONFIGURE, 1);
7167 if (rc) {
7168 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7169 QETH_CARD_IFNAME(card), rc);
7170 goto out;
7171 }
7172 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7173 PRINT_INFO("Broadcast enabled \n");
7174 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7175 IPA_CMD_ASS_ENABLE, 1);
7176 if (rc) {
7177 PRINT_WARN("Could not set up broadcast echo filtering on "
7178 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7179 goto out;
7180 }
7181 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7182out:
7183 if (card->info.broadcast_capable)
7184 card->dev->flags |= IFF_BROADCAST;
7185 else
7186 card->dev->flags &= ~IFF_BROADCAST;
7187 return rc;
7188}
7189
7190static int
7191qeth_send_checksum_command(struct qeth_card *card)
7192{
7193 int rc;
7194
7195 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7196 IPA_CMD_ASS_START, 0);
7197 if (rc) {
7198 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7199 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7200 QETH_CARD_IFNAME(card), rc);
7201 return rc;
7202 }
7203 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7204 IPA_CMD_ASS_ENABLE,
7205 card->info.csum_mask);
7206 if (rc) {
7207 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7208 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7209 QETH_CARD_IFNAME(card), rc);
7210 return rc;
7211 }
7212 return 0;
7213}
7214
7215static int
7216qeth_start_ipa_checksum(struct qeth_card *card)
7217{
7218 int rc = 0;
7219
7220 QETH_DBF_TEXT(trace,3,"strtcsum");
7221
7222 if (card->options.checksum_type == NO_CHECKSUMMING) {
7223 PRINT_WARN("Using no checksumming on %s.\n",
7224 QETH_CARD_IFNAME(card));
7225 return 0;
7226 }
7227 if (card->options.checksum_type == SW_CHECKSUMMING) {
7228 PRINT_WARN("Using SW checksumming on %s.\n",
7229 QETH_CARD_IFNAME(card));
7230 return 0;
7231 }
7232 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7233 PRINT_WARN("Inbound HW Checksumming not "
7234 "supported on %s,\ncontinuing "
7235 "using Inbound SW Checksumming\n",
7236 QETH_CARD_IFNAME(card));
7237 card->options.checksum_type = SW_CHECKSUMMING;
7238 return 0;
7239 }
7240 rc = qeth_send_checksum_command(card);
7241 if (!rc) {
7242 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7243 }
7244 return rc;
7245}
7246
7247static int
7248qeth_start_ipa_tso(struct qeth_card *card)
7249{
7250 int rc;
7251
7252 QETH_DBF_TEXT(trace,3,"sttso");
7253
7254 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7255 PRINT_WARN("Outbound TSO not supported on %s\n",
7256 QETH_CARD_IFNAME(card));
7257 rc = -EOPNOTSUPP;
7258 } else {
7259 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7260 IPA_CMD_ASS_START,0);
7261 if (rc)
7262 PRINT_WARN("Could not start outbound TSO "
7263 "assist on %s: rc=%i\n",
7264 QETH_CARD_IFNAME(card), rc);
7265 else
7266 PRINT_INFO("Outbound TSO enabled\n");
7267 }
7268 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7269 card->options.large_send = QETH_LARGE_SEND_NO;
7270 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7271 }
7272 return rc;
7273}
7274
7275static int
7276qeth_start_ipassists(struct qeth_card *card)
7277{
7278 QETH_DBF_TEXT(trace,3,"strtipas");
7279 qeth_start_ipa_arp_processing(card); /* go on*/
7280 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7281 qeth_start_ipa_source_mac(card); /* go on*/
7282 qeth_start_ipa_vlan(card); /* go on*/
7283 qeth_start_ipa_multicast(card); /* go on*/
7284 qeth_start_ipa_ipv6(card); /* go on*/
7285 qeth_start_ipa_broadcast(card); /* go on*/
7286 qeth_start_ipa_checksum(card); /* go on*/
7287 qeth_start_ipa_tso(card); /* go on*/
7288 return 0;
7289}
7290
7291static int
7292qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7293 enum qeth_prot_versions prot)
7294{
7295 int rc;
7296 struct qeth_ipa_cmd *cmd;
7297 struct qeth_cmd_buffer *iob;
7298
7299 QETH_DBF_TEXT(trace,4,"setroutg");
7300 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7301 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7302 cmd->data.setrtg.type = (type);
7303 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7304
7305 return rc;
7306
7307}
7308
7309static void
7310qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7311 enum qeth_prot_versions prot)
7312{
7313 if (card->info.type == QETH_CARD_TYPE_IQD) {
7314 switch (*type) {
7315 case NO_ROUTER:
7316 case PRIMARY_CONNECTOR:
7317 case SECONDARY_CONNECTOR:
7318 case MULTICAST_ROUTER:
7319 return;
7320 default:
7321 goto out_inval;
7322 }
7323 } else {
7324 switch (*type) {
7325 case NO_ROUTER:
7326 case PRIMARY_ROUTER:
7327 case SECONDARY_ROUTER:
7328 return;
7329 case MULTICAST_ROUTER:
7330 if (qeth_is_ipafunc_supported(card, prot,
7331 IPA_OSA_MC_ROUTER))
7332 return;
7333 default:
7334 goto out_inval;
7335 }
7336 }
7337out_inval:
7338 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7339 "Router status set to 'no router'.\n",
7340 ((*type == PRIMARY_ROUTER)? "primary router" :
7341 (*type == SECONDARY_ROUTER)? "secondary router" :
7342 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7343 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7344 (*type == MULTICAST_ROUTER)? "multicast router" :
7345 "unknown"),
7346 card->dev->name);
7347 *type = NO_ROUTER;
7348}
7349
7350int
7351qeth_setrouting_v4(struct qeth_card *card)
7352{
7353 int rc;
7354
7355 QETH_DBF_TEXT(trace,3,"setrtg4");
7356
7357 qeth_correct_routing_type(card, &card->options.route4.type,
7358 QETH_PROT_IPV4);
7359
7360 rc = qeth_send_setrouting(card, card->options.route4.type,
7361 QETH_PROT_IPV4);
7362 if (rc) {
7363 card->options.route4.type = NO_ROUTER;
7364 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7365 "Type set to 'no router'.\n",
7366 rc, QETH_CARD_IFNAME(card));
7367 }
7368 return rc;
7369}
7370
7371int
7372qeth_setrouting_v6(struct qeth_card *card)
7373{
7374 int rc = 0;
7375
7376 QETH_DBF_TEXT(trace,3,"setrtg6");
7377#ifdef CONFIG_QETH_IPV6
7378
7379 qeth_correct_routing_type(card, &card->options.route6.type,
7380 QETH_PROT_IPV6);
7381
7382 if ((card->options.route6.type == NO_ROUTER) ||
7383 ((card->info.type == QETH_CARD_TYPE_OSAE) &&
7384 (card->options.route6.type == MULTICAST_ROUTER) &&
7385 !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
7386 return 0;
7387 rc = qeth_send_setrouting(card, card->options.route6.type,
7388 QETH_PROT_IPV6);
7389 if (rc) {
7390 card->options.route6.type = NO_ROUTER;
7391 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7392 "Type set to 'no router'.\n",
7393 rc, QETH_CARD_IFNAME(card));
7394 }
7395#endif
7396 return rc;
7397}
7398
7399int
9cb90de8 7400qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
1da177e4
LT		 7401{
7402 int rc = 0;
7403
9cb90de8
FP		 7404 if (card->dev == NULL) {
7405 card->options.large_send = type;
1da177e4 7406 return 0;
9cb90de8 7407 }
1da177e4 7408 netif_stop_queue(card->dev);
9cb90de8 7409 card->options.large_send = type;
1da177e4
LT		 7410 switch (card->options.large_send) {
7411 case QETH_LARGE_SEND_EDDP:
7412 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7413 break;
7414 case QETH_LARGE_SEND_TSO:
7415 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7416 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7417 } else {
7418 PRINT_WARN("TSO not supported on %s. "
7419 "large_send set to 'no'.\n",
7420 card->dev->name);
7421 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7422 card->options.large_send = QETH_LARGE_SEND_NO;
7423 rc = -EOPNOTSUPP;
7424 }
7425 break;
7426 default: /* includes QETH_LARGE_SEND_NO */
7427 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7428 break;
7429 }
1da177e4
LT		 7430 netif_wake_queue(card->dev);
7431 return rc;
7432}
7433
7434/*
7435 * softsetup card: init IPA stuff
7436 */
7437static int
7438qeth_softsetup_card(struct qeth_card *card)
7439{
7440 int rc;
7441
7442 QETH_DBF_TEXT(setup, 2, "softsetp");
7443
7444 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7445 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7446 if (rc == 0xe080){
7447 PRINT_WARN("LAN on card %s if offline! "
7448 "Continuing softsetup.\n",
7449 CARD_BUS_ID(card));
7450 card->lan_online = 0;
7451 } else
7452 return rc;
7453 } else
7454 card->lan_online = 1;
500f83ab
UB		 7455 if (card->info.type==QETH_CARD_TYPE_OSN)
7456 goto out;
66cc5d5a 7457 qeth_set_large_send(card, card->options.large_send);
1da177e4
LT		 7458 if (card->options.layer2) {
7459 card->dev->features |=
7460 NETIF_F_HW_VLAN_FILTER |
7461 NETIF_F_HW_VLAN_TX |
7462 NETIF_F_HW_VLAN_RX;
7463 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7464 card->info.broadcast_capable=1;
7465 if ((rc = qeth_layer2_initialize(card))) {
7466 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7467 return rc;
7468 }
7469#ifdef CONFIG_QETH_VLAN
7470 qeth_layer2_process_vlans(card, 0);
7471#endif
7472 goto out;
7473 }
1da177e4
LT		 7474 if ((rc = qeth_setadapter_parms(card)))
7475 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7476 if ((rc = qeth_start_ipassists(card)))
7477 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7478 if ((rc = qeth_setrouting_v4(card)))
7479 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7480 if ((rc = qeth_setrouting_v6(card)))
7481 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7482out:
7483 netif_stop_queue(card->dev);
7484 return 0;
7485}
7486
7487#ifdef CONFIG_QETH_IPV6
7488static int
7489qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7490 unsigned long data)
7491{
7492 struct qeth_ipa_cmd *cmd;
7493
7494 cmd = (struct qeth_ipa_cmd *) data;
7495 if (cmd->hdr.return_code == 0)
7496 card->info.unique_id = *((__u16 *)
7497 &cmd->data.create_destroy_addr.unique_id[6]);
7498 else {
7499 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7500 UNIQUE_ID_NOT_BY_CARD;
7501 PRINT_WARN("couldn't get a unique id from the card on device "
7502 "%s (result=x%x), using default id. ipv6 "
7503 "autoconfig on other lpars may lead to duplicate "
7504 "ip addresses. please use manually "
7505 "configured ones.\n",
7506 CARD_BUS_ID(card), cmd->hdr.return_code);
7507 }
7508 return 0;
7509}
7510#endif
7511
7512static int
7513qeth_put_unique_id(struct qeth_card *card)
7514{
7515
7516 int rc = 0;
7517#ifdef CONFIG_QETH_IPV6
7518 struct qeth_cmd_buffer *iob;
7519 struct qeth_ipa_cmd *cmd;
7520
7521 QETH_DBF_TEXT(trace,2,"puniqeid");
7522
7523 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7524 UNIQUE_ID_NOT_BY_CARD)
7525 return -1;
7526 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7527 QETH_PROT_IPV6);
7528 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7529 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7530 card->info.unique_id;
7531 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7532 card->dev->dev_addr, OSA_ADDR_LEN);
7533 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7534#else
7535 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7536 UNIQUE_ID_NOT_BY_CARD;
7537#endif
7538 return rc;
7539}
7540
7541/**
7542 * Clear IP List
7543 */
7544static void
7545qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7546{
7547 struct qeth_ipaddr *addr, *tmp;
7548 unsigned long flags;
7549
7550 QETH_DBF_TEXT(trace,4,"clearip");
7551 spin_lock_irqsave(&card->ip_lock, flags);
7552 /* clear todo list */
7553 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7554 list_del(&addr->entry);
7555 kfree(addr);
7556 }
7557
7558 while (!list_empty(&card->ip_list)) {
7559 addr = list_entry(card->ip_list.next,
7560 struct qeth_ipaddr, entry);
7561 list_del_init(&addr->entry);
7562 if (clean) {
7563 spin_unlock_irqrestore(&card->ip_lock, flags);
7564 qeth_deregister_addr_entry(card, addr);
7565 spin_lock_irqsave(&card->ip_lock, flags);
7566 }
7567 if (!recover || addr->is_multicast) {
7568 kfree(addr);
7569 continue;
7570 }
7571 list_add_tail(&addr->entry, card->ip_tbd_list);
7572 }
7573 spin_unlock_irqrestore(&card->ip_lock, flags);
7574}
7575
7576static void
7577qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7578 int clear_start_mask)
7579{
7580 unsigned long flags;
7581
7582 spin_lock_irqsave(&card->thread_mask_lock, flags);
7583 card->thread_allowed_mask = threads;
7584 if (clear_start_mask)
7585 card->thread_start_mask &= threads;
7586 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7587 wake_up(&card->wait_q);
7588}
7589
7590static inline int
7591qeth_threads_running(struct qeth_card *card, unsigned long threads)
7592{
7593 unsigned long flags;
7594 int rc = 0;
7595
7596 spin_lock_irqsave(&card->thread_mask_lock, flags);
7597 rc = (card->thread_running_mask & threads);
7598 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7599 return rc;
7600}
7601
7602static int
7603qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7604{
7605 return wait_event_interruptible(card->wait_q,
7606 qeth_threads_running(card, threads) == 0);
7607}
7608
7609static int
05e08a2a 7610qeth_stop_card(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7611{
7612 int rc = 0;
7613
7614 QETH_DBF_TEXT(setup ,2,"stopcard");
7615 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7616
7617 qeth_set_allowed_threads(card, 0, 1);
7618 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7619 return -ERESTARTSYS;
7620 if (card->read.state == CH_STATE_UP &&
7621 card->write.state == CH_STATE_UP &&
7622 (card->state == CARD_STATE_UP)) {
500f83ab
UB		 7623 if (recovery_mode &&
7624 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7625 qeth_stop(card->dev);
7626 } else {
7627 rtnl_lock();
7628 dev_close(card->dev);
7629 rtnl_unlock();
7630 }
1da177e4
LT		 7631 if (!card->use_hard_stop) {
7632 __u8 *mac = &card->dev->dev_addr[0];
7633 rc = qeth_layer2_send_delmac(card, mac);
7634 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7635 if ((rc = qeth_send_stoplan(card)))
7636 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7637 }
7638 card->state = CARD_STATE_SOFTSETUP;
7639 }
7640 if (card->state == CARD_STATE_SOFTSETUP) {
7641#ifdef CONFIG_QETH_VLAN
7642 if (card->options.layer2)
7643 qeth_layer2_process_vlans(card, 1);
7644#endif
7645 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7646 qeth_clear_ipacmd_list(card);
7647 card->state = CARD_STATE_HARDSETUP;
7648 }
7649 if (card->state == CARD_STATE_HARDSETUP) {
7650 if ((!card->use_hard_stop) &&
7651 (!card->options.layer2))
7652 if ((rc = qeth_put_unique_id(card)))
7653 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7654 qeth_qdio_clear_card(card, 0);
7655 qeth_clear_qdio_buffers(card);
7656 qeth_clear_working_pool_list(card);
7657 card->state = CARD_STATE_DOWN;
7658 }
7659 if (card->state == CARD_STATE_DOWN) {
7660 qeth_clear_cmd_buffers(&card->read);
7661 qeth_clear_cmd_buffers(&card->write);
7662 }
7663 card->use_hard_stop = 0;
7664 return rc;
7665}
7666
7667
7668static int
7669qeth_get_unique_id(struct qeth_card *card)
7670{
7671 int rc = 0;
7672#ifdef CONFIG_QETH_IPV6
7673 struct qeth_cmd_buffer *iob;
7674 struct qeth_ipa_cmd *cmd;
7675
7676 QETH_DBF_TEXT(setup, 2, "guniqeid");
7677
7678 if (!qeth_is_supported(card,IPA_IPV6)) {
7679 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7680 UNIQUE_ID_NOT_BY_CARD;
7681 return 0;
7682 }
7683
7684 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7685 QETH_PROT_IPV6);
7686 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7687 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7688 card->info.unique_id;
7689
7690 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7691#else
7692 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7693 UNIQUE_ID_NOT_BY_CARD;
7694#endif
7695 return rc;
7696}
7697static void
7698qeth_print_status_with_portname(struct qeth_card *card)
7699{
7700 char dbf_text[15];
7701 int i;
7702
7703 sprintf(dbf_text, "%s", card->info.portname + 1);
7704 for (i = 0; i < 8; i++)
7705 dbf_text[i] =
7706 (char) _ebcasc[(__u8) dbf_text[i]];
7707 dbf_text[8] = 0;
7708 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7709 "with link type %s (portname: %s)\n",
7710 CARD_RDEV_ID(card),
7711 CARD_WDEV_ID(card),
7712 CARD_DDEV_ID(card),
7713 qeth_get_cardname(card),
7714 (card->info.mcl_level[0]) ? " (level: " : "",
7715 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7716 (card->info.mcl_level[0]) ? ")" : "",
7717 qeth_get_cardname_short(card),
7718 dbf_text);
7719
7720}
7721
7722static void
7723qeth_print_status_no_portname(struct qeth_card *card)
7724{
7725 if (card->info.portname[0])
7726 printk("qeth: Device %s/%s/%s is a%s "
7727 "card%s%s%s\nwith link type %s "
7728 "(no portname needed by interface).\n",
7729 CARD_RDEV_ID(card),
7730 CARD_WDEV_ID(card),
7731 CARD_DDEV_ID(card),
7732 qeth_get_cardname(card),
7733 (card->info.mcl_level[0]) ? " (level: " : "",
7734 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7735 (card->info.mcl_level[0]) ? ")" : "",
7736 qeth_get_cardname_short(card));
7737 else
7738 printk("qeth: Device %s/%s/%s is a%s "
7739 "card%s%s%s\nwith link type %s.\n",
7740 CARD_RDEV_ID(card),
7741 CARD_WDEV_ID(card),
7742 CARD_DDEV_ID(card),
7743 qeth_get_cardname(card),
7744 (card->info.mcl_level[0]) ? " (level: " : "",
7745 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7746 (card->info.mcl_level[0]) ? ")" : "",
7747 qeth_get_cardname_short(card));
7748}
7749
7750static void
7751qeth_print_status_message(struct qeth_card *card)
7752{
7753 switch (card->info.type) {
7754 case QETH_CARD_TYPE_OSAE:
7755 /* VM will use a non-zero first character
7756 * to indicate a HiperSockets like reporting
7757 * of the level OSA sets the first character to zero
7758 * */
7759 if (!card->info.mcl_level[0]) {
7760 sprintf(card->info.mcl_level,"%02x%02x",
7761 card->info.mcl_level[2],
7762 card->info.mcl_level[3]);
7763
7764 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7765 break;
7766 }
7767 /* fallthrough */
7768 case QETH_CARD_TYPE_IQD:
7769 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7770 card->info.mcl_level[0]];
7771 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7772 card->info.mcl_level[1]];
7773 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7774 card->info.mcl_level[2]];
7775 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7776 card->info.mcl_level[3]];
7777 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7778 break;
7779 default:
7780 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7781 }
7782 if (card->info.portname_required)
7783 qeth_print_status_with_portname(card);
7784 else
7785 qeth_print_status_no_portname(card);
7786}
7787
7788static int
7789qeth_register_netdev(struct qeth_card *card)
7790{
7791 QETH_DBF_TEXT(setup, 3, "regnetd");
7792 if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7793 qeth_netdev_init(card->dev);
7794 return 0;
7795 }
7796 /* sysfs magic */
7797 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7798 return register_netdev(card->dev);
7799}
7800
7801static void
05e08a2a 7802qeth_start_again(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7803{
7804 QETH_DBF_TEXT(setup ,2, "startag");
7805
500f83ab
UB		 7806 if (recovery_mode &&
7807 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7808 qeth_open(card->dev);
7809 } else {
7810 rtnl_lock();
7811 dev_open(card->dev);
7812 rtnl_unlock();
7813 }
1da177e4
LT		 7814 /* this also sets saved unicast addresses */
7815 qeth_set_multicast_list(card->dev);
7816}
7817
7818
7819/* Layer 2 specific stuff */
7820#define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7821 if (card->options.option == value) { \
7822 PRINT_ERR("%s not supported with layer 2 " \
7823 "functionality, ignoring option on read" \
7824 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7825 card->options.option = reset_value; \
7826 }
7827#define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7828 if (card->options.option != value) { \
7829 PRINT_ERR("%s not supported with layer 2 " \
7830 "functionality, ignoring option on read" \
7831 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7832 card->options.option = reset_value; \
7833 }
7834
7835
7836static void qeth_make_parameters_consistent(struct qeth_card *card)
7837{
7838
500f83ab
UB		 7839 if (card->options.layer2 == 0)
7840 return;
7841 if (card->info.type == QETH_CARD_TYPE_OSN)
7842 return;
7843 if (card->info.type == QETH_CARD_TYPE_IQD) {
7844 PRINT_ERR("Device %s does not support layer 2 functionality." \
7845 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7846 card->options.layer2 = 0;
7847 return;
7848 }
7849 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7850 "Routing options are");
1da177e4 7851#ifdef CONFIG_QETH_IPV6
500f83ab
UB		 7852 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7853 "Routing options are");
1da177e4 7854#endif
500f83ab
UB		 7855 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7856 QETH_CHECKSUM_DEFAULT,
7857 "Checksumming options are");
7858 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7859 QETH_TR_BROADCAST_ALLRINGS,
7860 "Broadcast mode options are");
7861 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7862 QETH_TR_MACADDR_NONCANONICAL,
7863 "Canonical MAC addr options are");
7864 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7865 "Broadcast faking options are");
7866 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7867 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7868 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
1da177e4
LT		 7869}
7870
7871
7872static int
05e08a2a 7873__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1da177e4
LT		 7874{
7875 struct qeth_card *card = gdev->dev.driver_data;
7876 int rc = 0;
7877 enum qeth_card_states recover_flag;
7878
7879 BUG_ON(!card);
7880 QETH_DBF_TEXT(setup ,2, "setonlin");
7881 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7882
7883 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7884 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7885 PRINT_WARN("set_online of card %s interrupted by user!\n",
7886 CARD_BUS_ID(card));
7887 return -ERESTARTSYS;
7888 }
7889
7890 recover_flag = card->state;
7891 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7892 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7893 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7894 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7895 return -EIO;
7896 }
7897
500f83ab 7898 qeth_make_parameters_consistent(card);
1da177e4
LT		 7899
7900 if ((rc = qeth_hardsetup_card(card))){
7901 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7902 goto out_remove;
7903 }
7904 card->state = CARD_STATE_HARDSETUP;
7905
7906 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7907 rc = qeth_get_unique_id(card);
7908
7909 if (rc && card->options.layer2 == 0) {
7910 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7911 goto out_remove;
7912 }
7913 qeth_print_status_message(card);
7914 if ((rc = qeth_register_netdev(card))){
7915 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7916 goto out_remove;
7917 }
7918 if ((rc = qeth_softsetup_card(card))){
7919 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7920 goto out_remove;
7921 }
7922 card->state = CARD_STATE_SOFTSETUP;
7923
7924 if ((rc = qeth_init_qdio_queues(card))){
7925 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7926 goto out_remove;
7927 }
4965e97f
FP		 7928 netif_carrier_on(card->dev);
7929
1da177e4
LT		 7930 qeth_set_allowed_threads(card, 0xffffffff, 0);
7931 if (recover_flag == CARD_STATE_RECOVER)
05e08a2a 7932 qeth_start_again(card, recovery_mode);
1da177e4
LT		 7933 qeth_notify_processes();
7934 return 0;
7935out_remove:
7936 card->use_hard_stop = 1;
05e08a2a 7937 qeth_stop_card(card, 0);
1da177e4
LT		 7938 ccw_device_set_offline(CARD_DDEV(card));
7939 ccw_device_set_offline(CARD_WDEV(card));
7940 ccw_device_set_offline(CARD_RDEV(card));
7941 if (recover_flag == CARD_STATE_RECOVER)
7942 card->state = CARD_STATE_RECOVER;
7943 else
7944 card->state = CARD_STATE_DOWN;
7945 return -ENODEV;
7946}
7947
05e08a2a
FP		 7948static int
7949qeth_set_online(struct ccwgroup_device *gdev)
7950{
7951 return __qeth_set_online(gdev, 0);
7952}
7953
1da177e4
LT		 7954static struct ccw_device_id qeth_ids[] = {
7955 {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7956 {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
500f83ab 7957 {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
1da177e4
LT		 7958 {},
7959};
7960MODULE_DEVICE_TABLE(ccw, qeth_ids);
7961
7962struct device *qeth_root_dev = NULL;
7963
7964struct ccwgroup_driver qeth_ccwgroup_driver = {
7965 .owner = THIS_MODULE,
7966 .name = "qeth",
7967 .driver_id = 0xD8C5E3C8,
7968 .probe = qeth_probe_device,
7969 .remove = qeth_remove_device,
7970 .set_online = qeth_set_online,
7971 .set_offline = qeth_set_offline,
7972};
7973
7974struct ccw_driver qeth_ccw_driver = {
7975 .name = "qeth",
7976 .ids = qeth_ids,
7977 .probe = ccwgroup_probe_ccwdev,
7978 .remove = ccwgroup_remove_ccwdev,
7979};
7980
7981
7982static void
7983qeth_unregister_dbf_views(void)
7984{
7985 if (qeth_dbf_setup)
7986 debug_unregister(qeth_dbf_setup);
7987 if (qeth_dbf_qerr)
7988 debug_unregister(qeth_dbf_qerr);
7989 if (qeth_dbf_sense)
7990 debug_unregister(qeth_dbf_sense);
7991 if (qeth_dbf_misc)
7992 debug_unregister(qeth_dbf_misc);
7993 if (qeth_dbf_data)
7994 debug_unregister(qeth_dbf_data);
7995 if (qeth_dbf_control)
7996 debug_unregister(qeth_dbf_control);
7997 if (qeth_dbf_trace)
7998 debug_unregister(qeth_dbf_trace);
7999}
8000static int
8001qeth_register_dbf_views(void)
8002{
8003 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
66a464db 8004 QETH_DBF_SETUP_PAGES,
1da177e4
LT		 8005 QETH_DBF_SETUP_NR_AREAS,
8006 QETH_DBF_SETUP_LEN);
8007 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
66a464db 8008 QETH_DBF_MISC_PAGES,
1da177e4
LT		 8009 QETH_DBF_MISC_NR_AREAS,
8010 QETH_DBF_MISC_LEN);
8011 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
66a464db 8012 QETH_DBF_DATA_PAGES,
1da177e4
LT		 8013 QETH_DBF_DATA_NR_AREAS,
8014 QETH_DBF_DATA_LEN);
8015 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
66a464db 8016 QETH_DBF_CONTROL_PAGES,
1da177e4
LT		 8017 QETH_DBF_CONTROL_NR_AREAS,
8018 QETH_DBF_CONTROL_LEN);
8019 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
66a464db 8020 QETH_DBF_SENSE_PAGES,
1da177e4
LT		 8021 QETH_DBF_SENSE_NR_AREAS,
8022 QETH_DBF_SENSE_LEN);
8023 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
66a464db 8024 QETH_DBF_QERR_PAGES,
1da177e4
LT		 8025 QETH_DBF_QERR_NR_AREAS,
8026 QETH_DBF_QERR_LEN);
8027 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
66a464db 8028 QETH_DBF_TRACE_PAGES,
1da177e4
LT		 8029 QETH_DBF_TRACE_NR_AREAS,
8030 QETH_DBF_TRACE_LEN);
8031
8032 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
8033 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
8034 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
8035 (qeth_dbf_trace == NULL)) {
8036 qeth_unregister_dbf_views();
8037 return -ENOMEM;
8038 }
8039 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8040 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8041
8042 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8043 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8044
8045 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8046 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8047
8048 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8049 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8050
8051 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8052 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8053
8054 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8055 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8056
8057 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8058 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8059
8060 return 0;
8061}
8062
8063#ifdef CONFIG_QETH_IPV6
8064extern struct neigh_table arp_tbl;
8065static struct neigh_ops *arp_direct_ops;
8066static int (*qeth_old_arp_constructor) (struct neighbour *);
8067
8068static struct neigh_ops arp_direct_ops_template = {
8069 .family = AF_INET,
8070 .destructor = NULL,
8071 .solicit = NULL,
8072 .error_report = NULL,
8073 .output = dev_queue_xmit,
8074 .connected_output = dev_queue_xmit,
8075 .hh_output = dev_queue_xmit,
8076 .queue_xmit = dev_queue_xmit
8077};
8078
8079static int
8080qeth_arp_constructor(struct neighbour *neigh)
8081{
8082 struct net_device *dev = neigh->dev;
8083 struct in_device *in_dev;
8084 struct neigh_parms *parms;
8085 struct qeth_card *card;
8086
8087 card = qeth_get_card_from_dev(dev);
8088 if (card == NULL)
8089 goto out;
8090 if((card->options.layer2) ||
8091 (card->dev->hard_header == qeth_fake_header))
8092 goto out;
8093
8094 rcu_read_lock();
e5ed6399 8095 in_dev = __in_dev_get_rcu(dev);
1da177e4
LT		 8096 if (in_dev == NULL) {
8097 rcu_read_unlock();
8098 return -EINVAL;
8099 }
8100
8101 parms = in_dev->arp_parms;
8102 __neigh_parms_put(neigh->parms);
8103 neigh->parms = neigh_parms_clone(parms);
8104 rcu_read_unlock();
8105
8106 neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8107 neigh->nud_state = NUD_NOARP;
8108 neigh->ops = arp_direct_ops;
8109 neigh->output = neigh->ops->queue_xmit;
8110 return 0;
8111out:
8112 return qeth_old_arp_constructor(neigh);
8113}
8114#endif /*CONFIG_QETH_IPV6*/
8115
8116/*
8117 * IP address takeover related functions
8118 */
8119static void
8120qeth_clear_ipato_list(struct qeth_card *card)
8121{
8122 struct qeth_ipato_entry *ipatoe, *tmp;
8123 unsigned long flags;
8124
8125 spin_lock_irqsave(&card->ip_lock, flags);
8126 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8127 list_del(&ipatoe->entry);
8128 kfree(ipatoe);
8129 }
8130 spin_unlock_irqrestore(&card->ip_lock, flags);
8131}
8132
8133int
8134qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8135{
8136 struct qeth_ipato_entry *ipatoe;
8137 unsigned long flags;
8138 int rc = 0;
8139
8140 QETH_DBF_TEXT(trace, 2, "addipato");
8141 spin_lock_irqsave(&card->ip_lock, flags);
8142 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8143 if (ipatoe->proto != new->proto)
8144 continue;
8145 if (!memcmp(ipatoe->addr, new->addr,
8146 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8147 (ipatoe->mask_bits == new->mask_bits)){
8148 PRINT_WARN("ipato entry already exists!\n");
8149 rc = -EEXIST;
8150 break;
8151 }
8152 }
8153 if (!rc) {
8154 list_add_tail(&new->entry, &card->ipato.entries);
8155 }
8156 spin_unlock_irqrestore(&card->ip_lock, flags);
8157 return rc;
8158}
8159
8160void
8161qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8162 u8 *addr, int mask_bits)
8163{
8164 struct qeth_ipato_entry *ipatoe, *tmp;
8165 unsigned long flags;
8166
8167 QETH_DBF_TEXT(trace, 2, "delipato");
8168 spin_lock_irqsave(&card->ip_lock, flags);
8169 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8170 if (ipatoe->proto != proto)
8171 continue;
8172 if (!memcmp(ipatoe->addr, addr,
8173 (proto == QETH_PROT_IPV4)? 4:16) &&
8174 (ipatoe->mask_bits == mask_bits)){
8175 list_del(&ipatoe->entry);
8176 kfree(ipatoe);
8177 }
8178 }
8179 spin_unlock_irqrestore(&card->ip_lock, flags);
8180}
8181
8182static inline void
8183qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8184{
8185 int i, j;
8186 u8 octet;
8187
8188 for (i = 0; i < len; ++i){
8189 octet = addr[i];
8190 for (j = 7; j >= 0; --j){
8191 bits[i*8 + j] = octet & 1;
8192 octet >>= 1;
8193 }
8194 }
8195}
8196
8197static int
8198qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8199{
8200 struct qeth_ipato_entry *ipatoe;
8201 u8 addr_bits[128] = {0, };
8202 u8 ipatoe_bits[128] = {0, };
8203 int rc = 0;
8204
8205 if (!card->ipato.enabled)
8206 return 0;
8207
8208 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8209 (addr->proto == QETH_PROT_IPV4)? 4:16);
8210 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8211 if (addr->proto != ipatoe->proto)
8212 continue;
8213 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8214 (ipatoe->proto==QETH_PROT_IPV4) ?
8215 4:16);
8216 if (addr->proto == QETH_PROT_IPV4)
8217 rc = !memcmp(addr_bits, ipatoe_bits,
8218 min(32, ipatoe->mask_bits));
8219 else
8220 rc = !memcmp(addr_bits, ipatoe_bits,
8221 min(128, ipatoe->mask_bits));
8222 if (rc)
8223 break;
8224 }
8225 /* invert? */
8226 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8227 rc = !rc;
8228 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8229 rc = !rc;
8230
8231 return rc;
8232}
8233
8234/*
8235 * VIPA related functions
8236 */
8237int
8238qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8239 const u8 *addr)
8240{
8241 struct qeth_ipaddr *ipaddr;
8242 unsigned long flags;
8243 int rc = 0;
8244
8245 ipaddr = qeth_get_addr_buffer(proto);
8246 if (ipaddr){
8247 if (proto == QETH_PROT_IPV4){
8248 QETH_DBF_TEXT(trace, 2, "addvipa4");
8249 memcpy(&ipaddr->u.a4.addr, addr, 4);
8250 ipaddr->u.a4.mask = 0;
8251#ifdef CONFIG_QETH_IPV6
8252 } else if (proto == QETH_PROT_IPV6){
8253 QETH_DBF_TEXT(trace, 2, "addvipa6");
8254 memcpy(&ipaddr->u.a6.addr, addr, 16);
8255 ipaddr->u.a6.pfxlen = 0;
8256#endif
8257 }
8258 ipaddr->type = QETH_IP_TYPE_VIPA;
8259 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8260 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8261 } else
8262 return -ENOMEM;
8263 spin_lock_irqsave(&card->ip_lock, flags);
8264 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8265 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8266 rc = -EEXIST;
8267 spin_unlock_irqrestore(&card->ip_lock, flags);
8268 if (rc){
8269 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8270 return rc;
8271 }
8272 if (!qeth_add_ip(card, ipaddr))
8273 kfree(ipaddr);
8274 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8275 schedule_work(&card->kernel_thread_starter);
8276 return rc;
8277}
8278
8279void
8280qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8281 const u8 *addr)
8282{
8283 struct qeth_ipaddr *ipaddr;
8284
8285 ipaddr = qeth_get_addr_buffer(proto);
8286 if (ipaddr){
8287 if (proto == QETH_PROT_IPV4){
8288 QETH_DBF_TEXT(trace, 2, "delvipa4");
8289 memcpy(&ipaddr->u.a4.addr, addr, 4);
8290 ipaddr->u.a4.mask = 0;
8291#ifdef CONFIG_QETH_IPV6
8292 } else if (proto == QETH_PROT_IPV6){
8293 QETH_DBF_TEXT(trace, 2, "delvipa6");
8294 memcpy(&ipaddr->u.a6.addr, addr, 16);
8295 ipaddr->u.a6.pfxlen = 0;
8296#endif
8297 }
8298 ipaddr->type = QETH_IP_TYPE_VIPA;
8299 } else
8300 return;
8301 if (!qeth_delete_ip(card, ipaddr))
8302 kfree(ipaddr);
8303 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8304 schedule_work(&card->kernel_thread_starter);
8305}
8306
8307/*
8308 * proxy ARP related functions
8309 */
8310int
8311qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8312 const u8 *addr)
8313{
8314 struct qeth_ipaddr *ipaddr;
8315 unsigned long flags;
8316 int rc = 0;
8317
8318 ipaddr = qeth_get_addr_buffer(proto);
8319 if (ipaddr){
8320 if (proto == QETH_PROT_IPV4){
8321 QETH_DBF_TEXT(trace, 2, "addrxip4");
8322 memcpy(&ipaddr->u.a4.addr, addr, 4);
8323 ipaddr->u.a4.mask = 0;
8324#ifdef CONFIG_QETH_IPV6
8325 } else if (proto == QETH_PROT_IPV6){
8326 QETH_DBF_TEXT(trace, 2, "addrxip6");
8327 memcpy(&ipaddr->u.a6.addr, addr, 16);
8328 ipaddr->u.a6.pfxlen = 0;
8329#endif
8330 }
8331 ipaddr->type = QETH_IP_TYPE_RXIP;
8332 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8333 ipaddr->del_flags = 0;
8334 } else
8335 return -ENOMEM;
8336 spin_lock_irqsave(&card->ip_lock, flags);
8337 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8338 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8339 rc = -EEXIST;
8340 spin_unlock_irqrestore(&card->ip_lock, flags);
8341 if (rc){
8342 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8343 return rc;
8344 }
8345 if (!qeth_add_ip(card, ipaddr))
8346 kfree(ipaddr);
8347 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8348 schedule_work(&card->kernel_thread_starter);
8349 return 0;
8350}
8351
8352void
8353qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8354 const u8 *addr)
8355{
8356 struct qeth_ipaddr *ipaddr;
8357
8358 ipaddr = qeth_get_addr_buffer(proto);
8359 if (ipaddr){
8360 if (proto == QETH_PROT_IPV4){
8361 QETH_DBF_TEXT(trace, 2, "addrxip4");
8362 memcpy(&ipaddr->u.a4.addr, addr, 4);
8363 ipaddr->u.a4.mask = 0;
8364#ifdef CONFIG_QETH_IPV6
8365 } else if (proto == QETH_PROT_IPV6){
8366 QETH_DBF_TEXT(trace, 2, "addrxip6");
8367 memcpy(&ipaddr->u.a6.addr, addr, 16);
8368 ipaddr->u.a6.pfxlen = 0;
8369#endif
8370 }
8371 ipaddr->type = QETH_IP_TYPE_RXIP;
8372 } else
8373 return;
8374 if (!qeth_delete_ip(card, ipaddr))
8375 kfree(ipaddr);
8376 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8377 schedule_work(&card->kernel_thread_starter);
8378}
8379
8380/**
8381 * IP event handler
8382 */
8383static int
8384qeth_ip_event(struct notifier_block *this,
8385 unsigned long event,void *ptr)
8386{
8387 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8388 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8389 struct qeth_ipaddr *addr;
8390 struct qeth_card *card;
8391
8392 QETH_DBF_TEXT(trace,3,"ipevent");
8393 card = qeth_get_card_from_dev(dev);
8394 if (!card)
8395 return NOTIFY_DONE;
8396 if (card->options.layer2)
8397 return NOTIFY_DONE;
8398
8399 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8400 if (addr != NULL) {
8401 addr->u.a4.addr = ifa->ifa_address;
8402 addr->u.a4.mask = ifa->ifa_mask;
8403 addr->type = QETH_IP_TYPE_NORMAL;
8404 } else
8405 goto out;
8406
8407 switch(event) {
8408 case NETDEV_UP:
8409 if (!qeth_add_ip(card, addr))
8410 kfree(addr);
8411 break;
8412 case NETDEV_DOWN:
8413 if (!qeth_delete_ip(card, addr))
8414 kfree(addr);
8415 break;
8416 default:
8417 break;
8418 }
8419 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8420 schedule_work(&card->kernel_thread_starter);
8421out:
8422 return NOTIFY_DONE;
8423}
8424
8425static struct notifier_block qeth_ip_notifier = {
8426 qeth_ip_event,
8427 0
8428};
8429
8430#ifdef CONFIG_QETH_IPV6
8431/**
8432 * IPv6 event handler
8433 */
8434static int
8435qeth_ip6_event(struct notifier_block *this,
8436 unsigned long event,void *ptr)
8437{
8438
8439 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8440 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8441 struct qeth_ipaddr *addr;
8442 struct qeth_card *card;
8443
8444 QETH_DBF_TEXT(trace,3,"ip6event");
8445
8446 card = qeth_get_card_from_dev(dev);
8447 if (!card)
8448 return NOTIFY_DONE;
8449 if (!qeth_is_supported(card, IPA_IPV6))
8450 return NOTIFY_DONE;
8451
8452 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8453 if (addr != NULL) {
8454 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8455 addr->u.a6.pfxlen = ifa->prefix_len;
8456 addr->type = QETH_IP_TYPE_NORMAL;
8457 } else
8458 goto out;
8459
8460 switch(event) {
8461 case NETDEV_UP:
8462 if (!qeth_add_ip(card, addr))
8463 kfree(addr);
8464 break;
8465 case NETDEV_DOWN:
8466 if (!qeth_delete_ip(card, addr))
8467 kfree(addr);
8468 break;
8469 default:
8470 break;
8471 }
8472 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8473 schedule_work(&card->kernel_thread_starter);
8474out:
8475 return NOTIFY_DONE;
8476}
8477
8478static struct notifier_block qeth_ip6_notifier = {
8479 qeth_ip6_event,
8480 0
8481};
8482#endif
8483
8484static int
66aea23f 8485__qeth_reboot_event_card(struct device *dev, void *data)
1da177e4 8486{
1da177e4
LT		 8487 struct qeth_card *card;
8488
66aea23f
CH		 8489 card = (struct qeth_card *) dev->driver_data;
8490 qeth_clear_ip_list(card, 0, 0);
8491 qeth_qdio_clear_card(card, 0);
8492 return 0;
8493}
8494
8495static int
8496qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8497{
8498
8499 driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8500 __qeth_reboot_event_card);
1da177e4
LT		 8501 return NOTIFY_DONE;
8502}
8503
8504
8505static struct notifier_block qeth_reboot_notifier = {
8506 qeth_reboot_event,
8507 0
8508};
8509
8510static int
8511qeth_register_notifiers(void)
8512{
8513 int r;
8514
8515 QETH_DBF_TEXT(trace,5,"regnotif");
8516 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8517 return r;
8518 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8519 goto out_reboot;
8520#ifdef CONFIG_QETH_IPV6
8521 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8522 goto out_ipv4;
8523#endif
8524 return 0;
8525
8526#ifdef CONFIG_QETH_IPV6
8527out_ipv4:
8528 unregister_inetaddr_notifier(&qeth_ip_notifier);
8529#endif
8530out_reboot:
8531 unregister_reboot_notifier(&qeth_reboot_notifier);
8532 return r;
8533}
8534
8535/**
8536 * unregister all event notifiers
8537 */
8538static void
8539qeth_unregister_notifiers(void)
8540{
8541
8542 QETH_DBF_TEXT(trace,5,"unregnot");
8543 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8544 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8545#ifdef CONFIG_QETH_IPV6
8546 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8547#endif /* QETH_IPV6 */
8548
8549}
8550
8551#ifdef CONFIG_QETH_IPV6
8552static int
8553qeth_ipv6_init(void)
8554{
8555 qeth_old_arp_constructor = arp_tbl.constructor;
8556 write_lock(&arp_tbl.lock);
8557 arp_tbl.constructor = qeth_arp_constructor;
8558 write_unlock(&arp_tbl.lock);
8559
8560 arp_direct_ops = (struct neigh_ops*)
8561 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8562 if (!arp_direct_ops)
8563 return -ENOMEM;
8564
8565 memcpy(arp_direct_ops, &arp_direct_ops_template,
8566 sizeof(struct neigh_ops));
8567
8568 return 0;
8569}
8570
8571static void
8572qeth_ipv6_uninit(void)
8573{
8574 write_lock(&arp_tbl.lock);
8575 arp_tbl.constructor = qeth_old_arp_constructor;
8576 write_unlock(&arp_tbl.lock);
8577 kfree(arp_direct_ops);
8578}
8579#endif /* CONFIG_QETH_IPV6 */
8580
8581static void
8582qeth_sysfs_unregister(void)
8583{
8584 qeth_remove_driver_attributes();
8585 ccw_driver_unregister(&qeth_ccw_driver);
8586 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8587 s390_root_dev_unregister(qeth_root_dev);
8588}
8589/**
8590 * register qeth at sysfs
8591 */
8592static int
8593qeth_sysfs_register(void)
8594{
8595 int rc=0;
8596
8597 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8598 if (rc)
8599 return rc;
8600 rc = ccw_driver_register(&qeth_ccw_driver);
8601 if (rc)
8602 return rc;
8603 rc = qeth_create_driver_attributes();
8604 if (rc)
8605 return rc;
8606 qeth_root_dev = s390_root_dev_register("qeth");
8607 if (IS_ERR(qeth_root_dev)) {
8608 rc = PTR_ERR(qeth_root_dev);
8609 return rc;
8610 }
8611 return 0;
8612}
8613
8614/***
8615 * init function
8616 */
8617static int __init
8618qeth_init(void)
8619{
8620 int rc=0;
8621
e018ba1f 8622 PRINT_INFO("loading %s\n", version);
1da177e4
LT		 8623
8624 INIT_LIST_HEAD(&qeth_card_list.list);
8625 INIT_LIST_HEAD(&qeth_notify_list);
8626 spin_lock_init(&qeth_notify_lock);
8627 rwlock_init(&qeth_card_list.rwlock);
8628
8629 if (qeth_register_dbf_views())
8630 goto out_err;
8631 if (qeth_sysfs_register())
8632 goto out_sysfs;
8633
8634#ifdef CONFIG_QETH_IPV6
8635 if (qeth_ipv6_init()) {
8636 PRINT_ERR("Out of memory during ipv6 init.\n");
8637 goto out_sysfs;
8638 }
8639#endif /* QETH_IPV6 */
8640 if (qeth_register_notifiers())
8641 goto out_ipv6;
8642 if (qeth_create_procfs_entries())
8643 goto out_notifiers;
8644
8645 return rc;
8646
8647out_notifiers:
8648 qeth_unregister_notifiers();
8649out_ipv6:
8650#ifdef CONFIG_QETH_IPV6
8651 qeth_ipv6_uninit();
8652#endif /* QETH_IPV6 */
8653out_sysfs:
8654 qeth_sysfs_unregister();
8655 qeth_unregister_dbf_views();
8656out_err:
8657 PRINT_ERR("Initialization failed");
8658 return rc;
8659}
8660
8661static void
8662__exit qeth_exit(void)
8663{
8664 struct qeth_card *card, *tmp;
8665 unsigned long flags;
8666
8667 QETH_DBF_TEXT(trace,1, "cleanup.");
8668
8669 /*
8670 * Weed would not need to clean up our devices here, because the
8671 * common device layer calls qeth_remove_device for each device
8672 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8673 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8674 * qeth_remove_device called by the common device layer would otherwise
8675 * do a "hard" shutdown (card->use_hard_stop is set to one in
8676 * qeth_remove_device).
8677 */
8678again:
8679 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8680 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8681 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8682 qeth_set_offline(card->gdev);
8683 qeth_remove_device(card->gdev);
8684 goto again;
8685 }
8686 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8687#ifdef CONFIG_QETH_IPV6
8688 qeth_ipv6_uninit();
8689#endif
8690 qeth_unregister_notifiers();
8691 qeth_remove_procfs_entries();
8692 qeth_sysfs_unregister();
8693 qeth_unregister_dbf_views();
8694 printk("qeth: removed\n");
8695}
8696
500f83ab
UB		 8697EXPORT_SYMBOL(qeth_osn_register);
8698EXPORT_SYMBOL(qeth_osn_deregister);
8699EXPORT_SYMBOL(qeth_osn_assist);
1da177e4
LT		 8700module_init(qeth_init);
8701module_exit(qeth_exit);
1387780f 8702MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
1da177e4
LT		 8703MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8704 "Copyright 2000,2003 IBM Corporation\n");
8705
8706MODULE_LICENSE("GPL");
Clone of davem's net-next-2.6 tree