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[PATCH] s390: qeth multicast address registration fixed
[deliverable/linux.git] / drivers / s390 / net / qeth_main.c
CommitLineData
1da177e4
LT		 1/*
2 *
6c88ad2d 3 * linux/drivers/s390/net/qeth_main.c ($Revision: 1.236 $)
1da177e4
LT		 4 *
5 * Linux on zSeries OSA Express and HiperSockets support
6 *
7 * Copyright 2000,2003 IBM Corporation
8 *
9 * Author(s): Original Code written by
10 * Utz Bacher (utz.bacher@de.ibm.com)
11 * Rewritten by
12 * Frank Pavlic (pavlic@de.ibm.com) and
13 * Thomas Spatzier <tspat@de.ibm.com>
14 *
6c88ad2d 15 * $Revision: 1.236 $ $Date: 2005/05/04 20:19:18 $
1da177e4
LT		 16 *
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2, or (at your option)
20 * any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
30 */
31
1da177e4
LT		 32
33#include <linux/config.h>
34#include <linux/module.h>
35#include <linux/moduleparam.h>
36#include <linux/string.h>
37#include <linux/errno.h>
38#include <linux/mm.h>
39#include <linux/ip.h>
40#include <linux/inetdevice.h>
41#include <linux/netdevice.h>
42#include <linux/sched.h>
43#include <linux/workqueue.h>
44#include <linux/kernel.h>
45#include <linux/slab.h>
46#include <linux/interrupt.h>
47#include <linux/tcp.h>
48#include <linux/icmp.h>
49#include <linux/skbuff.h>
50#include <linux/in.h>
51#include <linux/igmp.h>
52#include <linux/init.h>
53#include <linux/reboot.h>
54#include <linux/mii.h>
55#include <linux/rcupdate.h>
56#include <linux/ethtool.h>
57
58#include <net/arp.h>
59#include <net/ip.h>
60#include <net/route.h>
61
62#include <asm/ebcdic.h>
63#include <asm/io.h>
64#include <asm/qeth.h>
65#include <asm/timex.h>
66#include <asm/semaphore.h>
67#include <asm/uaccess.h>
68
69#include "qeth.h"
70#include "qeth_mpc.h"
71#include "qeth_fs.h"
72#include "qeth_eddp.h"
73#include "qeth_tso.h"
74
6c88ad2d 75#define VERSION_QETH_C "$Revision: 1.236 $"
1da177e4
LT		 76static const char *version = "qeth S/390 OSA-Express driver";
77
78/**
79 * Debug Facility Stuff
80 */
81static debug_info_t *qeth_dbf_setup = NULL;
82static debug_info_t *qeth_dbf_data = NULL;
83static debug_info_t *qeth_dbf_misc = NULL;
84static debug_info_t *qeth_dbf_control = NULL;
85debug_info_t *qeth_dbf_trace = NULL;
86static debug_info_t *qeth_dbf_sense = NULL;
87static debug_info_t *qeth_dbf_qerr = NULL;
88
89DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
90
91/**
92 * some more definitions and declarations
93 */
94static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
95
96/* list of our cards */
97struct qeth_card_list_struct qeth_card_list;
98/*process list want to be notified*/
99spinlock_t qeth_notify_lock;
100struct list_head qeth_notify_list;
101
102static void qeth_send_control_data_cb(struct qeth_channel *,
103 struct qeth_cmd_buffer *);
104
105/**
106 * here we go with function implementation
107 */
108static void
109qeth_init_qdio_info(struct qeth_card *card);
110
111static int
112qeth_init_qdio_queues(struct qeth_card *card);
113
114static int
115qeth_alloc_qdio_buffers(struct qeth_card *card);
116
117static void
118qeth_free_qdio_buffers(struct qeth_card *);
119
120static void
121qeth_clear_qdio_buffers(struct qeth_card *);
122
123static void
124qeth_clear_ip_list(struct qeth_card *, int, int);
125
126static void
127qeth_clear_ipacmd_list(struct qeth_card *);
128
129static int
130qeth_qdio_clear_card(struct qeth_card *, int);
131
132static void
133qeth_clear_working_pool_list(struct qeth_card *);
134
135static void
136qeth_clear_cmd_buffers(struct qeth_channel *);
137
138static int
139qeth_stop(struct net_device *);
140
141static void
142qeth_clear_ipato_list(struct qeth_card *);
143
144static int
145qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
146
147static void
148qeth_irq_tasklet(unsigned long);
149
150static int
151qeth_set_online(struct ccwgroup_device *);
152
05e08a2a
FP		 153static int
154__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
155
1da177e4
LT		 156static struct qeth_ipaddr *
157qeth_get_addr_buffer(enum qeth_prot_versions);
158
159static void
160qeth_set_multicast_list(struct net_device *);
161
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 *));
518
519 recover_flag = card->state;
05e08a2a 520 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
1da177e4
LT		 521 PRINT_WARN("Stopping card %s interrupted by user!\n",
522 CARD_BUS_ID(card));
523 return -ERESTARTSYS;
524 }
9123e0d7
UB		 525 rc = ccw_device_set_offline(CARD_DDEV(card));
526 rc2 = ccw_device_set_offline(CARD_WDEV(card));
527 rc3 = ccw_device_set_offline(CARD_RDEV(card));
528 if (!rc)
529 rc = (rc2) ? rc2 : rc3;
530 if (rc)
1da177e4 531 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1da177e4
LT		 532 if (recover_flag == CARD_STATE_UP)
533 card->state = CARD_STATE_RECOVER;
534 qeth_notify_processes();
535 return 0;
536}
537
05e08a2a
FP		 538static int
539qeth_set_offline(struct ccwgroup_device *cgdev)
540{
541 return __qeth_set_offline(cgdev, 0);
542}
543
1da177e4
LT		 544static int
545qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
546
547
548static void
549qeth_remove_device(struct ccwgroup_device *cgdev)
550{
551 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
552 unsigned long flags;
553
554 QETH_DBF_TEXT(setup, 3, "rmdev");
555 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
556
557 if (!card)
558 return;
559
560 if (qeth_wait_for_threads(card, 0xffffffff))
561 return;
562
563 if (cgdev->state == CCWGROUP_ONLINE){
564 card->use_hard_stop = 1;
565 qeth_set_offline(cgdev);
566 }
567 /* remove form our internal list */
568 write_lock_irqsave(&qeth_card_list.rwlock, flags);
569 list_del(&card->list);
570 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
571 if (card->dev)
572 unregister_netdev(card->dev);
573 qeth_remove_device_attributes(&cgdev->dev);
574 qeth_free_card(card);
575 cgdev->dev.driver_data = NULL;
576 put_device(&cgdev->dev);
577}
578
579static int
580qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
581static int
582qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
583
584/**
585 * Add/remove address to/from card's ip list, i.e. try to add or remove
586 * reference to/from an IP address that is already registered on the card.
587 * Returns:
588 * 0 address was on card and its reference count has been adjusted,
589 * but is still > 0, so nothing has to be done
590 * also returns 0 if card was not on card and the todo was to delete
591 * the address -> there is also nothing to be done
592 * 1 address was not on card and the todo is to add it to the card's ip
593 * list
594 * -1 address was on card and its reference count has been decremented
595 * to <= 0 by the todo -> address must be removed from card
596 */
597static int
598__qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
599 struct qeth_ipaddr **__addr)
600{
601 struct qeth_ipaddr *addr;
602 int found = 0;
603
604 list_for_each_entry(addr, &card->ip_list, entry) {
6c88ad2d
FP		 605 if (card->options.layer2) {
606 if ((addr->type == todo->type) &&
607 (memcmp(&addr->mac, &todo->mac,
608 OSA_ADDR_LEN) == 0)) {
609 found = 1;
610 break;
611 }
612 continue;
613 }
1da177e4
LT		 614 if ((addr->proto == QETH_PROT_IPV4) &&
615 (todo->proto == QETH_PROT_IPV4) &&
616 (addr->type == todo->type) &&
617 (addr->u.a4.addr == todo->u.a4.addr) &&
6c88ad2d 618 (addr->u.a4.mask == todo->u.a4.mask)) {
1da177e4
LT		 619 found = 1;
620 break;
621 }
622 if ((addr->proto == QETH_PROT_IPV6) &&
623 (todo->proto == QETH_PROT_IPV6) &&
624 (addr->type == todo->type) &&
625 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
626 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
6c88ad2d 627 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 628 found = 1;
629 break;
630 }
631 }
6c88ad2d 632 if (found) {
1da177e4
LT		 633 addr->users += todo->users;
634 if (addr->users <= 0){
635 *__addr = addr;
636 return -1;
637 } else {
638 /* for VIPA and RXIP limit refcount to 1 */
639 if (addr->type != QETH_IP_TYPE_NORMAL)
640 addr->users = 1;
641 return 0;
642 }
643 }
6c88ad2d 644 if (todo->users > 0) {
1da177e4
LT		 645 /* for VIPA and RXIP limit refcount to 1 */
646 if (todo->type != QETH_IP_TYPE_NORMAL)
647 todo->users = 1;
648 return 1;
649 } else
650 return 0;
651}
652
653static inline int
654__qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
655 int same_type)
656{
657 struct qeth_ipaddr *tmp;
658
659 list_for_each_entry(tmp, list, entry) {
660 if ((tmp->proto == QETH_PROT_IPV4) &&
661 (addr->proto == QETH_PROT_IPV4) &&
662 ((same_type && (tmp->type == addr->type)) ||
663 (!same_type && (tmp->type != addr->type)) ) &&
664 (tmp->u.a4.addr == addr->u.a4.addr) ){
665 return 1;
666 }
667 if ((tmp->proto == QETH_PROT_IPV6) &&
668 (addr->proto == QETH_PROT_IPV6) &&
669 ((same_type && (tmp->type == addr->type)) ||
670 (!same_type && (tmp->type != addr->type)) ) &&
671 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
672 sizeof(struct in6_addr)) == 0) ) {
673 return 1;
674 }
675 }
676 return 0;
677}
678
679/*
680 * Add IP to be added to todo list. If there is already an "add todo"
681 * in this list we just incremenent the reference count.
682 * Returns 0 if we just incremented reference count.
683 */
684static int
685__qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
686{
687 struct qeth_ipaddr *tmp, *t;
688 int found = 0;
689
690 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
691 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
692 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
693 return 0;
6c88ad2d
FP		 694 if (card->options.layer2) {
695 if ((tmp->type == addr->type) &&
696 (tmp->is_multicast == addr->is_multicast) &&
697 (memcmp(&tmp->mac, &addr->mac,
698 OSA_ADDR_LEN) == 0)) {
699 found = 1;
700 break;
701 }
702 continue;
703 }
1da177e4
LT		 704 if ((tmp->proto == QETH_PROT_IPV4) &&
705 (addr->proto == QETH_PROT_IPV4) &&
706 (tmp->type == addr->type) &&
707 (tmp->is_multicast == addr->is_multicast) &&
708 (tmp->u.a4.addr == addr->u.a4.addr) &&
6c88ad2d 709 (tmp->u.a4.mask == addr->u.a4.mask)) {
1da177e4
LT		 710 found = 1;
711 break;
712 }
713 if ((tmp->proto == QETH_PROT_IPV6) &&
714 (addr->proto == QETH_PROT_IPV6) &&
715 (tmp->type == addr->type) &&
716 (tmp->is_multicast == addr->is_multicast) &&
717 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
718 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
6c88ad2d 719 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 720 found = 1;
721 break;
722 }
723 }
724 if (found){
725 if (addr->users != 0)
726 tmp->users += addr->users;
727 else
728 tmp->users += add? 1:-1;
6c88ad2d 729 if (tmp->users == 0) {
1da177e4
LT		 730 list_del(&tmp->entry);
731 kfree(tmp);
732 }
733 return 0;
734 } else {
735 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
736 list_add(&addr->entry, card->ip_tbd_list);
737 else {
738 if (addr->users == 0)
739 addr->users += add? 1:-1;
740 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
741 qeth_is_addr_covered_by_ipato(card, addr)){
742 QETH_DBF_TEXT(trace, 2, "tkovaddr");
743 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
744 }
745 list_add_tail(&addr->entry, card->ip_tbd_list);
746 }
747 return 1;
748 }
749}
750
751/**
752 * Remove IP address from list
753 */
754static int
755qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
756{
757 unsigned long flags;
758 int rc = 0;
759
6c88ad2d
FP		 760 QETH_DBF_TEXT(trace, 4, "delip");
761
762 if (card->options.layer2)
763 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
764 else if (addr->proto == QETH_PROT_IPV4)
765 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 766 else {
6c88ad2d
FP		 767 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
768 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 769 }
770 spin_lock_irqsave(&card->ip_lock, flags);
771 rc = __qeth_insert_ip_todo(card, addr, 0);
772 spin_unlock_irqrestore(&card->ip_lock, flags);
773 return rc;
774}
775
776static int
777qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
778{
779 unsigned long flags;
780 int rc = 0;
781
6c88ad2d
FP		 782 QETH_DBF_TEXT(trace, 4, "addip");
783 if (card->options.layer2)
784 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
785 else if (addr->proto == QETH_PROT_IPV4)
786 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 787 else {
6c88ad2d
FP		 788 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
789 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 790 }
791 spin_lock_irqsave(&card->ip_lock, flags);
792 rc = __qeth_insert_ip_todo(card, addr, 1);
793 spin_unlock_irqrestore(&card->ip_lock, flags);
794 return rc;
795}
796
797static inline void
798__qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
799{
800 struct qeth_ipaddr *addr, *tmp;
801 int rc;
802
803 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
804 if (addr->is_multicast) {
805 spin_unlock_irqrestore(&card->ip_lock, *flags);
806 rc = qeth_deregister_addr_entry(card, addr);
807 spin_lock_irqsave(&card->ip_lock, *flags);
808 if (!rc) {
809 list_del(&addr->entry);
810 kfree(addr);
811 }
812 }
813 }
814}
815
816static void
817qeth_set_ip_addr_list(struct qeth_card *card)
818{
819 struct list_head *tbd_list;
820 struct qeth_ipaddr *todo, *addr;
821 unsigned long flags;
822 int rc;
823
824 QETH_DBF_TEXT(trace, 2, "sdiplist");
825 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
826
827 spin_lock_irqsave(&card->ip_lock, flags);
828 tbd_list = card->ip_tbd_list;
829 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
830 if (!card->ip_tbd_list) {
831 QETH_DBF_TEXT(trace, 0, "silnomem");
832 card->ip_tbd_list = tbd_list;
833 spin_unlock_irqrestore(&card->ip_lock, flags);
834 return;
835 } else
836 INIT_LIST_HEAD(card->ip_tbd_list);
837
838 while (!list_empty(tbd_list)){
839 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
840 list_del(&todo->entry);
841 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
842 __qeth_delete_all_mc(card, &flags);
843 kfree(todo);
844 continue;
845 }
846 rc = __qeth_ref_ip_on_card(card, todo, &addr);
847 if (rc == 0) {
848 /* nothing to be done; only adjusted refcount */
849 kfree(todo);
850 } else if (rc == 1) {
851 /* new entry to be added to on-card list */
852 spin_unlock_irqrestore(&card->ip_lock, flags);
853 rc = qeth_register_addr_entry(card, todo);
854 spin_lock_irqsave(&card->ip_lock, flags);
855 if (!rc)
856 list_add_tail(&todo->entry, &card->ip_list);
857 else
858 kfree(todo);
859 } else if (rc == -1) {
860 /* on-card entry to be removed */
861 list_del_init(&addr->entry);
862 spin_unlock_irqrestore(&card->ip_lock, flags);
863 rc = qeth_deregister_addr_entry(card, addr);
864 spin_lock_irqsave(&card->ip_lock, flags);
865 if (!rc)
866 kfree(addr);
867 else
868 list_add_tail(&addr->entry, &card->ip_list);
869 kfree(todo);
870 }
871 }
872 spin_unlock_irqrestore(&card->ip_lock, flags);
873 kfree(tbd_list);
874}
875
876static void qeth_delete_mc_addresses(struct qeth_card *);
877static void qeth_add_multicast_ipv4(struct qeth_card *);
6c88ad2d 878static void qeth_layer2_add_multicast(struct qeth_card *);
1da177e4
LT		 879#ifdef CONFIG_QETH_IPV6
880static void qeth_add_multicast_ipv6(struct qeth_card *);
881#endif
882
883static inline int
884qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
885{
886 unsigned long flags;
887
888 spin_lock_irqsave(&card->thread_mask_lock, flags);
889 if ( !(card->thread_allowed_mask & thread) ||
890 (card->thread_start_mask & thread) ) {
891 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
892 return -EPERM;
893 }
894 card->thread_start_mask |= thread;
895 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
896 return 0;
897}
898
899static void
900qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
901{
902 unsigned long flags;
903
904 spin_lock_irqsave(&card->thread_mask_lock, flags);
905 card->thread_start_mask &= ~thread;
906 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
907 wake_up(&card->wait_q);
908}
909
910static void
911qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
912{
913 unsigned long flags;
914
915 spin_lock_irqsave(&card->thread_mask_lock, flags);
916 card->thread_running_mask &= ~thread;
917 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
918 wake_up(&card->wait_q);
919}
920
921static inline int
922__qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
923{
924 unsigned long flags;
925 int rc = 0;
926
927 spin_lock_irqsave(&card->thread_mask_lock, flags);
928 if (card->thread_start_mask & thread){
929 if ((card->thread_allowed_mask & thread) &&
930 !(card->thread_running_mask & thread)){
931 rc = 1;
932 card->thread_start_mask &= ~thread;
933 card->thread_running_mask |= thread;
934 } else
935 rc = -EPERM;
936 }
937 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
938 return rc;
939}
940
941static int
942qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
943{
944 int rc = 0;
945
946 wait_event(card->wait_q,
947 (rc = __qeth_do_run_thread(card, thread)) >= 0);
948 return rc;
949}
950
951static int
952qeth_register_ip_addresses(void *ptr)
953{
954 struct qeth_card *card;
955
956 card = (struct qeth_card *) ptr;
957 daemonize("qeth_reg_ip");
958 QETH_DBF_TEXT(trace,4,"regipth1");
959 if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
960 return 0;
961 QETH_DBF_TEXT(trace,4,"regipth2");
962 qeth_set_ip_addr_list(card);
963 qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
964 return 0;
965}
966
967static int
968qeth_recover(void *ptr)
969{
970 struct qeth_card *card;
971 int rc = 0;
972
973 card = (struct qeth_card *) ptr;
974 daemonize("qeth_recover");
975 QETH_DBF_TEXT(trace,2,"recover1");
976 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
977 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
978 return 0;
979 QETH_DBF_TEXT(trace,2,"recover2");
980 PRINT_WARN("Recovery of device %s started ...\n",
981 CARD_BUS_ID(card));
982 card->use_hard_stop = 1;
05e08a2a
FP		 983 __qeth_set_offline(card->gdev,1);
984 rc = __qeth_set_online(card->gdev,1);
1da177e4
LT		 985 if (!rc)
986 PRINT_INFO("Device %s successfully recovered!\n",
987 CARD_BUS_ID(card));
988 else
989 PRINT_INFO("Device %s could not be recovered!\n",
990 CARD_BUS_ID(card));
991 /* don't run another scheduled recovery */
992 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
993 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
994 return 0;
995}
996
997void
998qeth_schedule_recovery(struct qeth_card *card)
999{
1000 QETH_DBF_TEXT(trace,2,"startrec");
1001
1002 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1003 schedule_work(&card->kernel_thread_starter);
1004}
1005
1006static int
1007qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1008{
1009 unsigned long flags;
1010 int rc = 0;
1011
1012 spin_lock_irqsave(&card->thread_mask_lock, flags);
1013 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1014 (u8) card->thread_start_mask,
1015 (u8) card->thread_allowed_mask,
1016 (u8) card->thread_running_mask);
1017 rc = (card->thread_start_mask & thread);
1018 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1019 return rc;
1020}
1021
1022static void
1023qeth_start_kernel_thread(struct qeth_card *card)
1024{
1025 QETH_DBF_TEXT(trace , 2, "strthrd");
1026
1027 if (card->read.state != CH_STATE_UP &&
1028 card->write.state != CH_STATE_UP)
1029 return;
1030
1031 if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1032 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1033 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1034 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1035}
1036
1037
1038static void
1039qeth_set_intial_options(struct qeth_card *card)
1040{
1041 card->options.route4.type = NO_ROUTER;
1042#ifdef CONFIG_QETH_IPV6
1043 card->options.route6.type = NO_ROUTER;
1044#endif /* QETH_IPV6 */
1045 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1046 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1047 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1048 card->options.fake_broadcast = 0;
1049 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1050 card->options.fake_ll = 0;
500f83ab
UB		 1051 if (card->info.type == QETH_CARD_TYPE_OSN)
1052 card->options.layer2 = 1;
1053 else
1054 card->options.layer2 = 0;
1da177e4
LT		 1055}
1056
1057/**
1058 * initialize channels ,card and all state machines
1059 */
1060static int
1061qeth_setup_card(struct qeth_card *card)
1062{
1063
1064 QETH_DBF_TEXT(setup, 2, "setupcrd");
1065 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1066
1067 card->read.state = CH_STATE_DOWN;
1068 card->write.state = CH_STATE_DOWN;
1069 card->data.state = CH_STATE_DOWN;
1070 card->state = CARD_STATE_DOWN;
1071 card->lan_online = 0;
1072 card->use_hard_stop = 0;
1073 card->dev = NULL;
1074#ifdef CONFIG_QETH_VLAN
1075 spin_lock_init(&card->vlanlock);
1076 card->vlangrp = NULL;
1077#endif
9123e0d7 1078 spin_lock_init(&card->lock);
1da177e4
LT		 1079 spin_lock_init(&card->ip_lock);
1080 spin_lock_init(&card->thread_mask_lock);
1081 card->thread_start_mask = 0;
1082 card->thread_allowed_mask = 0;
1083 card->thread_running_mask = 0;
1084 INIT_WORK(&card->kernel_thread_starter,
1085 (void *)qeth_start_kernel_thread,card);
1086 INIT_LIST_HEAD(&card->ip_list);
1087 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1088 if (!card->ip_tbd_list) {
1089 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1090 return -ENOMEM;
1091 }
1092 INIT_LIST_HEAD(card->ip_tbd_list);
1093 INIT_LIST_HEAD(&card->cmd_waiter_list);
1094 init_waitqueue_head(&card->wait_q);
1095 /* intial options */
1096 qeth_set_intial_options(card);
1097 /* IP address takeover */
1098 INIT_LIST_HEAD(&card->ipato.entries);
1099 card->ipato.enabled = 0;
1100 card->ipato.invert4 = 0;
1101 card->ipato.invert6 = 0;
1102 /* init QDIO stuff */
1103 qeth_init_qdio_info(card);
1104 return 0;
1105}
1106
1107static int
1108is_1920_device (struct qeth_card *card)
1109{
1110 int single_queue = 0;
1111 struct ccw_device *ccwdev;
1112 struct channelPath_dsc {
1113 u8 flags;
1114 u8 lsn;
1115 u8 desc;
1116 u8 chpid;
1117 u8 swla;
1118 u8 zeroes;
1119 u8 chla;
1120 u8 chpp;
1121 } *chp_dsc;
1122
1123 QETH_DBF_TEXT(setup, 2, "chk_1920");
1124
1125 ccwdev = card->data.ccwdev;
1126 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1127 if (chp_dsc != NULL) {
1128 /* CHPP field bit 6 == 1 -> single queue */
1129 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1130 kfree(chp_dsc);
1131 }
1132 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1133 return single_queue;
1134}
1135
1136static int
1137qeth_determine_card_type(struct qeth_card *card)
1138{
1139 int i = 0;
1140
1141 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1142
500f83ab
UB		 1143 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1144 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1da177e4
LT		 1145 while (known_devices[i][4]) {
1146 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1147 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1148 card->info.type = known_devices[i][4];
500f83ab
UB		 1149 card->qdio.no_out_queues = known_devices[i][8];
1150 card->info.is_multicast_different = known_devices[i][9];
1da177e4
LT		 1151 if (is_1920_device(card)) {
1152 PRINT_INFO("Priority Queueing not able "
1153 "due to hardware limitations!\n");
1154 card->qdio.no_out_queues = 1;
1155 card->qdio.default_out_queue = 0;
500f83ab 1156 }
1da177e4
LT		 1157 return 0;
1158 }
1159 i++;
1160 }
1161 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1162 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1163 return -ENOENT;
1164}
1165
1166static int
1167qeth_probe_device(struct ccwgroup_device *gdev)
1168{
1169 struct qeth_card *card;
1170 struct device *dev;
1171 unsigned long flags;
1172 int rc;
1173
1174 QETH_DBF_TEXT(setup, 2, "probedev");
1175
1176 dev = &gdev->dev;
1177 if (!get_device(dev))
1178 return -ENODEV;
1179
500f83ab
UB		 1180 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1181
1da177e4
LT		 1182 card = qeth_alloc_card();
1183 if (!card) {
1184 put_device(dev);
1185 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1186 return -ENOMEM;
1187 }
1188 card->read.ccwdev = gdev->cdev[0];
1189 card->write.ccwdev = gdev->cdev[1];
1190 card->data.ccwdev = gdev->cdev[2];
1da177e4
LT		 1191 gdev->dev.driver_data = card;
1192 card->gdev = gdev;
1193 gdev->cdev[0]->handler = qeth_irq;
1194 gdev->cdev[1]->handler = qeth_irq;
1195 gdev->cdev[2]->handler = qeth_irq;
1196
500f83ab
UB		 1197 if ((rc = qeth_determine_card_type(card))){
1198 PRINT_WARN("%s: not a valid card type\n", __func__);
1199 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1200 put_device(dev);
1201 qeth_free_card(card);
1202 return rc;
1203 }
1204 if ((rc = qeth_setup_card(card))){
1205 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1da177e4
LT		 1206 put_device(dev);
1207 qeth_free_card(card);
1208 return rc;
1209 }
500f83ab
UB		 1210 rc = qeth_create_device_attributes(dev);
1211 if (rc) {
1da177e4
LT		 1212 put_device(dev);
1213 qeth_free_card(card);
1214 return rc;
1215 }
1216 /* insert into our internal list */
1217 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1218 list_add_tail(&card->list, &qeth_card_list.list);
1219 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1220 return rc;
1221}
1222
1223
1224static int
1225qeth_get_unitaddr(struct qeth_card *card)
1226{
1227 int length;
1228 char *prcd;
1229 int rc;
1230
1231 QETH_DBF_TEXT(setup, 2, "getunit");
1232 rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1233 if (rc) {
1234 PRINT_ERR("read_conf_data for device %s returned %i\n",
1235 CARD_DDEV_ID(card), rc);
1236 return rc;
1237 }
1238 card->info.chpid = prcd[30];
1239 card->info.unit_addr2 = prcd[31];
1240 card->info.cula = prcd[63];
1241 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1242 (prcd[0x11] == _ascebc['M']));
1243 return 0;
1244}
1245
1246static void
1247qeth_init_tokens(struct qeth_card *card)
1248{
1249 card->token.issuer_rm_w = 0x00010103UL;
1250 card->token.cm_filter_w = 0x00010108UL;
1251 card->token.cm_connection_w = 0x0001010aUL;
1252 card->token.ulp_filter_w = 0x0001010bUL;
1253 card->token.ulp_connection_w = 0x0001010dUL;
1254}
1255
1256static inline __u16
1257raw_devno_from_bus_id(char *id)
1258{
1259 id += (strlen(id) - 4);
1260 return (__u16) simple_strtoul(id, &id, 16);
1261}
1262/**
1263 * setup channel
1264 */
1265static void
1266qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1267{
1268 struct qeth_card *card;
1269
1270 QETH_DBF_TEXT(trace, 4, "setupccw");
1271 card = CARD_FROM_CDEV(channel->ccwdev);
1272 if (channel == &card->read)
1273 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1274 else
1275 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1276 channel->ccw.count = len;
1277 channel->ccw.cda = (__u32) __pa(iob);
1278}
1279
1280/**
1281 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1282 */
1283static struct qeth_cmd_buffer *
1284__qeth_get_buffer(struct qeth_channel *channel)
1285{
1286 __u8 index;
1287
1288 QETH_DBF_TEXT(trace, 6, "getbuff");
1289 index = channel->io_buf_no;
1290 do {
1291 if (channel->iob[index].state == BUF_STATE_FREE) {
1292 channel->iob[index].state = BUF_STATE_LOCKED;
1293 channel->io_buf_no = (channel->io_buf_no + 1) %
1294 QETH_CMD_BUFFER_NO;
1295 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1296 return channel->iob + index;
1297 }
1298 index = (index + 1) % QETH_CMD_BUFFER_NO;
1299 } while(index != channel->io_buf_no);
1300
1301 return NULL;
1302}
1303
1304/**
1305 * release command buffer
1306 */
1307static void
1308qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1309{
1310 unsigned long flags;
1311
1312 QETH_DBF_TEXT(trace, 6, "relbuff");
1313 spin_lock_irqsave(&channel->iob_lock, flags);
1314 memset(iob->data, 0, QETH_BUFSIZE);
1315 iob->state = BUF_STATE_FREE;
1316 iob->callback = qeth_send_control_data_cb;
1317 iob->rc = 0;
1318 spin_unlock_irqrestore(&channel->iob_lock, flags);
1319}
1320
1321static struct qeth_cmd_buffer *
1322qeth_get_buffer(struct qeth_channel *channel)
1323{
1324 struct qeth_cmd_buffer *buffer = NULL;
1325 unsigned long flags;
1326
1327 spin_lock_irqsave(&channel->iob_lock, flags);
1328 buffer = __qeth_get_buffer(channel);
1329 spin_unlock_irqrestore(&channel->iob_lock, flags);
1330 return buffer;
1331}
1332
1333static struct qeth_cmd_buffer *
1334qeth_wait_for_buffer(struct qeth_channel *channel)
1335{
1336 struct qeth_cmd_buffer *buffer;
1337 wait_event(channel->wait_q,
1338 ((buffer = qeth_get_buffer(channel)) != NULL));
1339 return buffer;
1340}
1341
1342static void
1343qeth_clear_cmd_buffers(struct qeth_channel *channel)
1344{
1345 int cnt = 0;
1346
1347 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1348 qeth_release_buffer(channel,&channel->iob[cnt]);
1349 channel->buf_no = 0;
1350 channel->io_buf_no = 0;
1351}
1352
1353/**
1354 * start IDX for read and write channel
1355 */
1356static int
1357qeth_idx_activate_get_answer(struct qeth_channel *channel,
1358 void (*idx_reply_cb)(struct qeth_channel *,
1359 struct qeth_cmd_buffer *))
1360{
1361 struct qeth_cmd_buffer *iob;
1362 unsigned long flags;
1363 int rc;
1364 struct qeth_card *card;
1365
1366 QETH_DBF_TEXT(setup, 2, "idxanswr");
1367 card = CARD_FROM_CDEV(channel->ccwdev);
1368 iob = qeth_get_buffer(channel);
1369 iob->callback = idx_reply_cb;
1370 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1371 channel->ccw.count = QETH_BUFSIZE;
1372 channel->ccw.cda = (__u32) __pa(iob->data);
1373
1374 wait_event(card->wait_q,
1375 atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1376 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1377 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1378 rc = ccw_device_start(channel->ccwdev,
1379 &channel->ccw,(addr_t) iob, 0, 0);
1380 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1381
1382 if (rc) {
1383 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1384 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1385 atomic_set(&channel->irq_pending, 0);
1386 wake_up(&card->wait_q);
1387 return rc;
1388 }
1389 rc = wait_event_interruptible_timeout(card->wait_q,
1390 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1391 if (rc == -ERESTARTSYS)
1392 return rc;
1393 if (channel->state != CH_STATE_UP){
1394 rc = -ETIME;
1395 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1396 qeth_clear_cmd_buffers(channel);
1397 } else
1398 rc = 0;
1399 return rc;
1400}
1401
1402static int
1403qeth_idx_activate_channel(struct qeth_channel *channel,
1404 void (*idx_reply_cb)(struct qeth_channel *,
1405 struct qeth_cmd_buffer *))
1406{
1407 struct qeth_card *card;
1408 struct qeth_cmd_buffer *iob;
1409 unsigned long flags;
1410 __u16 temp;
1411 int rc;
1412
1413 card = CARD_FROM_CDEV(channel->ccwdev);
1414
1415 QETH_DBF_TEXT(setup, 2, "idxactch");
1416
1417 iob = qeth_get_buffer(channel);
1418 iob->callback = idx_reply_cb;
1419 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1420 channel->ccw.count = IDX_ACTIVATE_SIZE;
1421 channel->ccw.cda = (__u32) __pa(iob->data);
1422 if (channel == &card->write) {
1423 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1424 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1425 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1426 card->seqno.trans_hdr++;
1427 } else {
1428 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1429 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1430 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1431 }
1432 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1433 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1434 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1435 &card->info.func_level,sizeof(__u16));
1436 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1437 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1438 temp = (card->info.cula << 8) + card->info.unit_addr2;
1439 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1440
1441 wait_event(card->wait_q,
1442 atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1443 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1444 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1445 rc = ccw_device_start(channel->ccwdev,
1446 &channel->ccw,(addr_t) iob, 0, 0);
1447 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1448
1449 if (rc) {
1450 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1451 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1452 atomic_set(&channel->irq_pending, 0);
1453 wake_up(&card->wait_q);
1454 return rc;
1455 }
1456 rc = wait_event_interruptible_timeout(card->wait_q,
1457 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1458 if (rc == -ERESTARTSYS)
1459 return rc;
1460 if (channel->state != CH_STATE_ACTIVATING) {
1461 PRINT_WARN("qeth: IDX activate timed out!\n");
1462 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1463 qeth_clear_cmd_buffers(channel);
1464 return -ETIME;
1465 }
1466 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1467}
1468
1469static int
1470qeth_peer_func_level(int level)
1471{
1472 if ((level & 0xff) == 8)
1473 return (level & 0xff) + 0x400;
1474 if (((level >> 8) & 3) == 1)
1475 return (level & 0xff) + 0x200;
1476 return level;
1477}
1478
1479static void
1480qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1481{
1482 struct qeth_card *card;
1483 __u16 temp;
1484
1485 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1486
1487 if (channel->state == CH_STATE_DOWN) {
1488 channel->state = CH_STATE_ACTIVATING;
1489 goto out;
1490 }
1491 card = CARD_FROM_CDEV(channel->ccwdev);
1492
1493 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1494 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1495 "reply\n", CARD_WDEV_ID(card));
1496 goto out;
1497 }
1498 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1499 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1500 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1501 "function level mismatch "
1502 "(sent: 0x%x, received: 0x%x)\n",
1503 CARD_WDEV_ID(card), card->info.func_level, temp);
1504 goto out;
1505 }
1506 channel->state = CH_STATE_UP;
1507out:
1508 qeth_release_buffer(channel, iob);
1509}
1510
1511static int
1512qeth_check_idx_response(unsigned char *buffer)
1513{
1514 if (!buffer)
1515 return 0;
1516
1517 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1518 if ((buffer[2] & 0xc0) == 0xc0) {
1519 PRINT_WARN("received an IDX TERMINATE "
1520 "with cause code 0x%02x%s\n",
1521 buffer[4],
1522 ((buffer[4] == 0x22) ?
1523 " -- try another portname" : ""));
1524 QETH_DBF_TEXT(trace, 2, "ckidxres");
1525 QETH_DBF_TEXT(trace, 2, " idxterm");
1526 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1527 return -EIO;
1528 }
1529 return 0;
1530}
1531
1532static void
1533qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1534{
1535 struct qeth_card *card;
1536 __u16 temp;
1537
1538 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1539 if (channel->state == CH_STATE_DOWN) {
1540 channel->state = CH_STATE_ACTIVATING;
1541 goto out;
1542 }
1543
1544 card = CARD_FROM_CDEV(channel->ccwdev);
1545 if (qeth_check_idx_response(iob->data)) {
1546 goto out;
1547 }
1548 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1549 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1550 "reply\n", CARD_RDEV_ID(card));
1551 goto out;
1552 }
1553
1554/**
1555 * temporary fix for microcode bug
1556 * to revert it,replace OR by AND
1557 */
1558 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1559 (card->info.type == QETH_CARD_TYPE_OSAE) )
1560 card->info.portname_required = 1;
1561
1562 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1563 if (temp != qeth_peer_func_level(card->info.func_level)) {
1564 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1565 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1566 CARD_RDEV_ID(card), card->info.func_level, temp);
1567 goto out;
1568 }
1569 memcpy(&card->token.issuer_rm_r,
1570 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1571 QETH_MPC_TOKEN_LENGTH);
1572 memcpy(&card->info.mcl_level[0],
1573 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1574 channel->state = CH_STATE_UP;
1575out:
1576 qeth_release_buffer(channel,iob);
1577}
1578
1579static int
1580qeth_issue_next_read(struct qeth_card *card)
1581{
1582 int rc;
1583 struct qeth_cmd_buffer *iob;
1584
1585 QETH_DBF_TEXT(trace,5,"issnxrd");
1586 if (card->read.state != CH_STATE_UP)
1587 return -EIO;
1588 iob = qeth_get_buffer(&card->read);
1589 if (!iob) {
1590 PRINT_WARN("issue_next_read failed: no iob available!\n");
1591 return -ENOMEM;
1592 }
1593 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1594 wait_event(card->wait_q,
1595 atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1596 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1597 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1598 (addr_t) iob, 0, 0);
1599 if (rc) {
1600 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1601 atomic_set(&card->read.irq_pending, 0);
1602 qeth_schedule_recovery(card);
1603 wake_up(&card->wait_q);
1604 }
1605 return rc;
1606}
1607
1608static struct qeth_reply *
1609qeth_alloc_reply(struct qeth_card *card)
1610{
1611 struct qeth_reply *reply;
1612
1613 reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1614 if (reply){
1615 memset(reply, 0, sizeof(struct qeth_reply));
1616 atomic_set(&reply->refcnt, 1);
1617 reply->card = card;
1618 };
1619 return reply;
1620}
1621
1622static void
1623qeth_get_reply(struct qeth_reply *reply)
1624{
1625 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1626 atomic_inc(&reply->refcnt);
1627}
1628
1629static void
1630qeth_put_reply(struct qeth_reply *reply)
1631{
1632 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1633 if (atomic_dec_and_test(&reply->refcnt))
1634 kfree(reply);
1635}
1636
1637static void
1638qeth_cmd_timeout(unsigned long data)
1639{
1640 struct qeth_reply *reply, *list_reply, *r;
1641 unsigned long flags;
1642
1643 reply = (struct qeth_reply *) data;
1644 spin_lock_irqsave(&reply->card->lock, flags);
1645 list_for_each_entry_safe(list_reply, r,
1646 &reply->card->cmd_waiter_list, list) {
1647 if (reply == list_reply){
1648 qeth_get_reply(reply);
1649 list_del_init(&reply->list);
1650 spin_unlock_irqrestore(&reply->card->lock, flags);
1651 reply->rc = -ETIME;
1652 reply->received = 1;
1653 wake_up(&reply->wait_q);
1654 qeth_put_reply(reply);
1655 return;
1656 }
1657 }
1658 spin_unlock_irqrestore(&reply->card->lock, flags);
1659}
1660
1da177e4
LT		 1661static struct qeth_ipa_cmd *
1662qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1663{
1664 struct qeth_ipa_cmd *cmd = NULL;
1665
1666 QETH_DBF_TEXT(trace,5,"chkipad");
1667 if (IS_IPA(iob->data)){
1668 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1669 if (IS_IPA_REPLY(cmd))
1670 return cmd;
1671 else {
1672 switch (cmd->hdr.command) {
1673 case IPA_CMD_STOPLAN:
1674 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1675 "there is a network problem or "
1676 "someone pulled the cable or "
1677 "disabled the port.\n",
1678 QETH_CARD_IFNAME(card),
1679 card->info.chpid);
1680 card->lan_online = 0;
1681 netif_carrier_off(card->dev);
1682 return NULL;
1683 case IPA_CMD_STARTLAN:
1684 PRINT_INFO("Link reestablished on %s "
1685 "(CHPID 0x%X). Scheduling "
1686 "IP address reset.\n",
1687 QETH_CARD_IFNAME(card),
1688 card->info.chpid);
1da177e4 1689 netif_carrier_on(card->dev);
9123e0d7 1690 qeth_schedule_recovery(card);
1da177e4 1691 return NULL;
500f83ab
UB		 1692 case IPA_CMD_MODCCID:
1693 return cmd;
1da177e4
LT		 1694 case IPA_CMD_REGISTER_LOCAL_ADDR:
1695 QETH_DBF_TEXT(trace,3, "irla");
1696 break;
1697 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1698 QETH_DBF_TEXT(trace,3, "urla");
1699 break;
1700 default:
1701 PRINT_WARN("Received data is IPA "
1702 "but not a reply!\n");
1703 break;
1704 }
1705 }
1706 }
1707 return cmd;
1708}
1709
1710/**
1711 * wake all waiting ipa commands
1712 */
1713static void
1714qeth_clear_ipacmd_list(struct qeth_card *card)
1715{
1716 struct qeth_reply *reply, *r;
1717 unsigned long flags;
1718
1719 QETH_DBF_TEXT(trace, 4, "clipalst");
1720
1721 spin_lock_irqsave(&card->lock, flags);
1722 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1723 qeth_get_reply(reply);
1724 reply->rc = -EIO;
1725 reply->received = 1;
1726 list_del_init(&reply->list);
1727 wake_up(&reply->wait_q);
1728 qeth_put_reply(reply);
1729 }
1730 spin_unlock_irqrestore(&card->lock, flags);
1731}
1732
1733static void
1734qeth_send_control_data_cb(struct qeth_channel *channel,
1735 struct qeth_cmd_buffer *iob)
1736{
1737 struct qeth_card *card;
1738 struct qeth_reply *reply, *r;
1739 struct qeth_ipa_cmd *cmd;
1740 unsigned long flags;
1741 int keep_reply;
1742
1743 QETH_DBF_TEXT(trace,4,"sndctlcb");
1744
1745 card = CARD_FROM_CDEV(channel->ccwdev);
1746 if (qeth_check_idx_response(iob->data)) {
1747 qeth_clear_ipacmd_list(card);
1748 qeth_schedule_recovery(card);
1749 goto out;
1750 }
1751
1752 cmd = qeth_check_ipa_data(card, iob);
1753 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1754 goto out;
500f83ab
UB		 1755 /*in case of OSN : check if cmd is set */
1756 if (card->info.type == QETH_CARD_TYPE_OSN &&
1757 cmd &&
1758 cmd->hdr.command != IPA_CMD_STARTLAN &&
1759 card->osn_info.assist_cb != NULL) {
1760 card->osn_info.assist_cb(card->dev, cmd);
1761 goto out;
1762 }
1da177e4
LT		 1763
1764 spin_lock_irqsave(&card->lock, flags);
1765 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1766 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1767 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1768 qeth_get_reply(reply);
1769 list_del_init(&reply->list);
1770 spin_unlock_irqrestore(&card->lock, flags);
1771 keep_reply = 0;
1772 if (reply->callback != NULL) {
1773 if (cmd) {
1774 reply->offset = (__u16)((char*)cmd -
1775 (char *)iob->data);
1776 keep_reply = reply->callback(card,
1777 reply,
1778 (unsigned long)cmd);
500f83ab 1779 } else
1da177e4
LT		 1780 keep_reply = reply->callback(card,
1781 reply,
1782 (unsigned long)iob);
1783 }
1784 if (cmd)
1785 reply->rc = (u16) cmd->hdr.return_code;
1786 else if (iob->rc)
1787 reply->rc = iob->rc;
1788 if (keep_reply) {
1789 spin_lock_irqsave(&card->lock, flags);
1790 list_add_tail(&reply->list,
1791 &card->cmd_waiter_list);
1792 spin_unlock_irqrestore(&card->lock, flags);
1793 } else {
1794 reply->received = 1;
1795 wake_up(&reply->wait_q);
1796 }
1797 qeth_put_reply(reply);
1798 goto out;
1799 }
1800 }
1801 spin_unlock_irqrestore(&card->lock, flags);
1802out:
1803 memcpy(&card->seqno.pdu_hdr_ack,
1804 QETH_PDU_HEADER_SEQ_NO(iob->data),
1805 QETH_SEQ_NO_LENGTH);
1806 qeth_release_buffer(channel,iob);
1807}
1808
500f83ab
UB		 1809static inline void
1810qeth_prepare_control_data(struct qeth_card *card, int len,
1811struct qeth_cmd_buffer *iob)
1812{
1813 qeth_setup_ccw(&card->write,iob->data,len);
1814 iob->callback = qeth_release_buffer;
1815
1816 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1817 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1818 card->seqno.trans_hdr++;
1819 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1820 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1821 card->seqno.pdu_hdr++;
1822 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1823 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1824 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1825}
1826
1da177e4
LT		 1827static int
1828qeth_send_control_data(struct qeth_card *card, int len,
1829 struct qeth_cmd_buffer *iob,
1830 int (*reply_cb)
1831 (struct qeth_card *, struct qeth_reply*, unsigned long),
1832 void *reply_param)
1833
1834{
1835 int rc;
1836 unsigned long flags;
500f83ab 1837 struct qeth_reply *reply = NULL;
1da177e4
LT		 1838 struct timer_list timer;
1839
1840 QETH_DBF_TEXT(trace, 2, "sendctl");
1841
1da177e4
LT		 1842 reply = qeth_alloc_reply(card);
1843 if (!reply) {
1844 PRINT_WARN("Could no alloc qeth_reply!\n");
1845 return -ENOMEM;
1846 }
1847 reply->callback = reply_cb;
1848 reply->param = reply_param;
1849 if (card->state == CARD_STATE_DOWN)
1850 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1851 else
1852 reply->seqno = card->seqno.ipa++;
1853 init_timer(&timer);
1854 timer.function = qeth_cmd_timeout;
1855 timer.data = (unsigned long) reply;
1da177e4
LT		 1856 init_waitqueue_head(&reply->wait_q);
1857 spin_lock_irqsave(&card->lock, flags);
1858 list_add_tail(&reply->list, &card->cmd_waiter_list);
1859 spin_unlock_irqrestore(&card->lock, flags);
1860 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1861 wait_event(card->wait_q,
1862 atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
500f83ab
UB		 1863 qeth_prepare_control_data(card, len, iob);
1864 if (IS_IPA(iob->data))
1865 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1866 else
1867 timer.expires = jiffies + QETH_TIMEOUT;
1da177e4
LT		 1868 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1869 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1870 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1871 (addr_t) iob, 0, 0);
1872 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1873 if (rc){
1874 PRINT_WARN("qeth_send_control_data: "
1875 "ccw_device_start rc = %i\n", rc);
1876 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1877 spin_lock_irqsave(&card->lock, flags);
1878 list_del_init(&reply->list);
1879 qeth_put_reply(reply);
1880 spin_unlock_irqrestore(&card->lock, flags);
1881 qeth_release_buffer(iob->channel, iob);
1882 atomic_set(&card->write.irq_pending, 0);
1883 wake_up(&card->wait_q);
1884 return rc;
1885 }
1886 add_timer(&timer);
1887 wait_event(reply->wait_q, reply->received);
1888 del_timer_sync(&timer);
1889 rc = reply->rc;
1890 qeth_put_reply(reply);
1891 return rc;
1892}
1893
500f83ab
UB		 1894static int
1895qeth_osn_send_control_data(struct qeth_card *card, int len,
1896 struct qeth_cmd_buffer *iob)
1897{
1898 unsigned long flags;
1899 int rc = 0;
1900
1901 QETH_DBF_TEXT(trace, 5, "osndctrd");
1902
1903 wait_event(card->wait_q,
1904 atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1905 qeth_prepare_control_data(card, len, iob);
1906 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1907 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1908 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1909 (addr_t) iob, 0, 0);
1910 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1911 if (rc){
1912 PRINT_WARN("qeth_osn_send_control_data: "
1913 "ccw_device_start rc = %i\n", rc);
1914 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1915 qeth_release_buffer(iob->channel, iob);
1916 atomic_set(&card->write.irq_pending, 0);
1917 wake_up(&card->wait_q);
1918 }
1919 return rc;
1920}
1921
1922static inline void
1923qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1924 char prot_type)
1925{
1926 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1927 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1928 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1929 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1930}
1931
1932static int
1933qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1934 int data_len)
1935{
1936 u16 s1, s2;
1937
1938QETH_DBF_TEXT(trace,4,"osndipa");
1939
1940 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1941 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1942 s2 = (u16)data_len;
1943 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1944 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1945 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1946 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1947 return qeth_osn_send_control_data(card, s1, iob);
1948}
1949
1da177e4
LT		 1950static int
1951qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1952 int (*reply_cb)
1953 (struct qeth_card *,struct qeth_reply*, unsigned long),
1954 void *reply_param)
1955{
1956 int rc;
1957 char prot_type;
1958
1959 QETH_DBF_TEXT(trace,4,"sendipa");
1960
1da177e4 1961 if (card->options.layer2)
500f83ab
UB		 1962 if (card->info.type == QETH_CARD_TYPE_OSN)
1963 prot_type = QETH_PROT_OSN2;
1964 else
1965 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 1966 else
1967 prot_type = QETH_PROT_TCPIP;
500f83ab 1968 qeth_prepare_ipa_cmd(card,iob,prot_type);
1da177e4
LT		 1969 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1970 reply_cb, reply_param);
1971 return rc;
1972}
1973
1974
1975static int
1976qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1977 unsigned long data)
1978{
1979 struct qeth_cmd_buffer *iob;
1980
1981 QETH_DBF_TEXT(setup, 2, "cmenblcb");
1982
1983 iob = (struct qeth_cmd_buffer *) data;
1984 memcpy(&card->token.cm_filter_r,
1985 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1986 QETH_MPC_TOKEN_LENGTH);
1987 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
1988 return 0;
1989}
1990
1991static int
1992qeth_cm_enable(struct qeth_card *card)
1993{
1994 int rc;
1995 struct qeth_cmd_buffer *iob;
1996
1997 QETH_DBF_TEXT(setup,2,"cmenable");
1998
1999 iob = qeth_wait_for_buffer(&card->write);
2000 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2001 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2002 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2003 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2004 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2005
2006 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2007 qeth_cm_enable_cb, NULL);
2008 return rc;
2009}
2010
2011static int
2012qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2013 unsigned long data)
2014{
2015
2016 struct qeth_cmd_buffer *iob;
2017
2018 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2019
2020 iob = (struct qeth_cmd_buffer *) data;
2021 memcpy(&card->token.cm_connection_r,
2022 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2023 QETH_MPC_TOKEN_LENGTH);
2024 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2025 return 0;
2026}
2027
2028static int
2029qeth_cm_setup(struct qeth_card *card)
2030{
2031 int rc;
2032 struct qeth_cmd_buffer *iob;
2033
2034 QETH_DBF_TEXT(setup,2,"cmsetup");
2035
2036 iob = qeth_wait_for_buffer(&card->write);
2037 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2038 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2039 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2040 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2041 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2042 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2043 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2044 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2045 qeth_cm_setup_cb, NULL);
2046 return rc;
2047
2048}
2049
2050static int
2051qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2052 unsigned long data)
2053{
2054
2055 __u16 mtu, framesize;
2056 __u16 len;
2057 __u8 link_type;
2058 struct qeth_cmd_buffer *iob;
2059
2060 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2061
2062 iob = (struct qeth_cmd_buffer *) data;
2063 memcpy(&card->token.ulp_filter_r,
2064 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2065 QETH_MPC_TOKEN_LENGTH);
2066 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2067 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2068 mtu = qeth_get_mtu_outof_framesize(framesize);
2069 if (!mtu) {
2070 iob->rc = -EINVAL;
2071 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2072 return 0;
2073 }
2074 card->info.max_mtu = mtu;
2075 card->info.initial_mtu = mtu;
2076 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2077 } else {
2078 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2079 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2080 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2081 }
2082
2083 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2084 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2085 memcpy(&link_type,
2086 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2087 card->info.link_type = link_type;
2088 } else
2089 card->info.link_type = 0;
2090 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2091 return 0;
2092}
2093
2094static int
2095qeth_ulp_enable(struct qeth_card *card)
2096{
2097 int rc;
2098 char prot_type;
2099 struct qeth_cmd_buffer *iob;
2100
2101 /*FIXME: trace view callbacks*/
2102 QETH_DBF_TEXT(setup,2,"ulpenabl");
2103
2104 iob = qeth_wait_for_buffer(&card->write);
2105 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2106
2107 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2108 (__u8) card->info.portno;
2109 if (card->options.layer2)
500f83ab
UB		 2110 if (card->info.type == QETH_CARD_TYPE_OSN)
2111 prot_type = QETH_PROT_OSN2;
2112 else
2113 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 2114 else
2115 prot_type = QETH_PROT_TCPIP;
2116
2117 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2118 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2119 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2120 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2121 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2122 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2123 card->info.portname, 9);
2124 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2125 qeth_ulp_enable_cb, NULL);
2126 return rc;
2127
2128}
2129
2130static inline __u16
2131__raw_devno_from_bus_id(char *id)
2132{
2133 id += (strlen(id) - 4);
2134 return (__u16) simple_strtoul(id, &id, 16);
2135}
2136
2137static int
2138qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2139 unsigned long data)
2140{
2141 struct qeth_cmd_buffer *iob;
2142
2143 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2144
2145 iob = (struct qeth_cmd_buffer *) data;
2146 memcpy(&card->token.ulp_connection_r,
2147 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2148 QETH_MPC_TOKEN_LENGTH);
2149 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2150 return 0;
2151}
2152
2153static int
2154qeth_ulp_setup(struct qeth_card *card)
2155{
2156 int rc;
2157 __u16 temp;
2158 struct qeth_cmd_buffer *iob;
2159
2160 QETH_DBF_TEXT(setup,2,"ulpsetup");
2161
2162 iob = qeth_wait_for_buffer(&card->write);
2163 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2164
2165 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2166 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2167 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2168 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2169 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2170 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2171
2172 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2173 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2174 temp = (card->info.cula << 8) + card->info.unit_addr2;
2175 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2176 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2177 qeth_ulp_setup_cb, NULL);
2178 return rc;
2179}
2180
2181static inline int
2182qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2183 unsigned int qdio_error,
2184 unsigned int siga_error)
2185{
2186 int rc = 0;
2187
2188 if (qdio_error || siga_error) {
2189 QETH_DBF_TEXT(trace, 2, "qdinerr");
2190 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2191 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2192 buf->buffer->element[15].flags & 0xff);
2193 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2194 buf->buffer->element[14].flags & 0xff);
2195 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2196 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2197 rc = 1;
2198 }
2199 return rc;
2200}
2201
2202static inline struct sk_buff *
500f83ab 2203qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
1da177e4
LT		 2204{
2205 struct sk_buff* skb;
500f83ab
UB		 2206 int add_len;
2207
2208 add_len = 0;
2209 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2210 add_len = sizeof(struct qeth_hdr);
1da177e4 2211#ifdef CONFIG_QETH_VLAN
500f83ab
UB		 2212 else
2213 add_len = VLAN_HLEN;
1da177e4 2214#endif
500f83ab
UB		 2215 skb = dev_alloc_skb(length + add_len);
2216 if (skb && add_len)
2217 skb_reserve(skb, add_len);
1da177e4
LT		 2218 return skb;
2219}
2220
2221static inline struct sk_buff *
2222qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2223 struct qdio_buffer_element **__element, int *__offset,
2224 struct qeth_hdr **hdr)
2225{
2226 struct qdio_buffer_element *element = *__element;
2227 int offset = *__offset;
2228 struct sk_buff *skb = NULL;
2229 int skb_len;
2230 void *data_ptr;
2231 int data_len;
2232
2233 QETH_DBF_TEXT(trace,6,"nextskb");
2234 /* qeth_hdr must not cross element boundaries */
2235 if (element->length < offset + sizeof(struct qeth_hdr)){
2236 if (qeth_is_last_sbale(element))
2237 return NULL;
2238 element++;
2239 offset = 0;
2240 if (element->length < sizeof(struct qeth_hdr))
2241 return NULL;
2242 }
2243 *hdr = element->addr + offset;
2244
2245 offset += sizeof(struct qeth_hdr);
2246 if (card->options.layer2)
500f83ab
UB		 2247 if (card->info.type == QETH_CARD_TYPE_OSN)
2248 skb_len = (*hdr)->hdr.osn.pdu_length;
2249 else
2250 skb_len = (*hdr)->hdr.l2.pkt_length;
1da177e4
LT		 2251 else
2252 skb_len = (*hdr)->hdr.l3.length;
2253
2254 if (!skb_len)
2255 return NULL;
2256 if (card->options.fake_ll){
e23dd9cd 2257 if(card->dev->type == ARPHRD_IEEE802_TR){
500f83ab 2258 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
e23dd9cd
FP		 2259 goto no_mem;
2260 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2261 } else {
500f83ab 2262 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
e23dd9cd
FP		 2263 goto no_mem;
2264 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2265 }
500f83ab 2266 } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
1da177e4
LT		 2267 goto no_mem;
2268 data_ptr = element->addr + offset;
2269 while (skb_len) {
2270 data_len = min(skb_len, (int)(element->length - offset));
2271 if (data_len)
2272 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2273 skb_len -= data_len;
2274 if (skb_len){
2275 if (qeth_is_last_sbale(element)){
2276 QETH_DBF_TEXT(trace,4,"unexeob");
2277 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2278 QETH_DBF_TEXT(qerr,2,"unexeob");
2279 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2280 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2281 dev_kfree_skb_any(skb);
2282 card->stats.rx_errors++;
2283 return NULL;
2284 }
2285 element++;
2286 offset = 0;
2287 data_ptr = element->addr;
2288 } else {
2289 offset += data_len;
2290 }
2291 }
2292 *__element = element;
2293 *__offset = offset;
2294 return skb;
2295no_mem:
2296 if (net_ratelimit()){
2297 PRINT_WARN("No memory for packet received on %s.\n",
2298 QETH_CARD_IFNAME(card));
2299 QETH_DBF_TEXT(trace,2,"noskbmem");
2300 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2301 }
2302 card->stats.rx_dropped++;
2303 return NULL;
2304}
2305
ab611487 2306static inline __be16
1da177e4
LT		 2307qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2308{
2309 struct qeth_card *card;
2310 struct ethhdr *eth;
2311
2312 QETH_DBF_TEXT(trace,6,"typtrans");
2313
2314 card = (struct qeth_card *)dev->priv;
2315#ifdef CONFIG_TR
2316 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2317 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2318 return tr_type_trans(skb,dev);
2319#endif /* CONFIG_TR */
2320 skb->mac.raw = skb->data;
2321 skb_pull(skb, ETH_HLEN );
2322 eth = eth_hdr(skb);
2323
2324 if (*eth->h_dest & 1) {
2325 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2326 skb->pkt_type = PACKET_BROADCAST;
2327 else
2328 skb->pkt_type = PACKET_MULTICAST;
2329 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2330 skb->pkt_type = PACKET_OTHERHOST;
2331
2332 if (ntohs(eth->h_proto) >= 1536)
2333 return eth->h_proto;
2334 if (*(unsigned short *) (skb->data) == 0xFFFF)
2335 return htons(ETH_P_802_3);
2336 return htons(ETH_P_802_2);
2337}
2338
2339static inline void
e23dd9cd
FP		 2340qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2341 struct qeth_hdr *hdr)
2342{
2343 struct trh_hdr *fake_hdr;
2344 struct trllc *fake_llc;
2345 struct iphdr *ip_hdr;
2346
2347 QETH_DBF_TEXT(trace,5,"skbfktr");
2348 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2349 /* this is a fake ethernet header */
2350 fake_hdr = (struct trh_hdr *) skb->mac.raw;
2351
2352 /* the destination MAC address */
2353 switch (skb->pkt_type){
2354 case PACKET_MULTICAST:
2355 switch (skb->protocol){
2356#ifdef CONFIG_QETH_IPV6
2357 case __constant_htons(ETH_P_IPV6):
2358 ndisc_mc_map((struct in6_addr *)
2359 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2360 fake_hdr->daddr, card->dev, 0);
2361 break;
2362#endif /* CONFIG_QETH_IPV6 */
2363 case __constant_htons(ETH_P_IP):
2364 ip_hdr = (struct iphdr *)skb->data;
2365 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2366 break;
2367 default:
2368 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2369 }
2370 break;
2371 case PACKET_BROADCAST:
2372 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2373 break;
2374 default:
2375 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2376 }
2377 /* the source MAC address */
2378 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2379 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2380 else
2381 memset(fake_hdr->saddr, 0, TR_ALEN);
2382 fake_hdr->rcf=0;
2383 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2384 fake_llc->dsap = EXTENDED_SAP;
2385 fake_llc->ssap = EXTENDED_SAP;
2386 fake_llc->llc = UI_CMD;
2387 fake_llc->protid[0] = 0;
2388 fake_llc->protid[1] = 0;
2389 fake_llc->protid[2] = 0;
2390 fake_llc->ethertype = ETH_P_IP;
2391}
2392
2393static inline void
2394qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
1da177e4
LT		 2395 struct qeth_hdr *hdr)
2396{
2397 struct ethhdr *fake_hdr;
2398 struct iphdr *ip_hdr;
2399
e23dd9cd
FP		 2400 QETH_DBF_TEXT(trace,5,"skbfketh");
2401 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
1da177e4
LT		 2402 /* this is a fake ethernet header */
2403 fake_hdr = (struct ethhdr *) skb->mac.raw;
2404
2405 /* the destination MAC address */
2406 switch (skb->pkt_type){
2407 case PACKET_MULTICAST:
2408 switch (skb->protocol){
2409#ifdef CONFIG_QETH_IPV6
2410 case __constant_htons(ETH_P_IPV6):
2411 ndisc_mc_map((struct in6_addr *)
2412 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2413 fake_hdr->h_dest, card->dev, 0);
2414 break;
2415#endif /* CONFIG_QETH_IPV6 */
2416 case __constant_htons(ETH_P_IP):
2417 ip_hdr = (struct iphdr *)skb->data;
e23dd9cd 2418 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
1da177e4
LT		 2419 break;
2420 default:
2421 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2422 }
2423 break;
2424 case PACKET_BROADCAST:
2425 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2426 break;
2427 default:
2428 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2429 }
2430 /* the source MAC address */
2431 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2432 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2433 else
2434 memset(fake_hdr->h_source, 0, ETH_ALEN);
2435 /* the protocol */
2436 fake_hdr->h_proto = skb->protocol;
2437}
2438
e23dd9cd
FP		 2439static inline void
2440qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2441 struct qeth_hdr *hdr)
2442{
2443 if (card->dev->type == ARPHRD_IEEE802_TR)
2444 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2445 else
2446 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2447}
2448
1da177e4
LT		 2449static inline void
2450qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2451 struct qeth_hdr *hdr)
2452{
2453#ifdef CONFIG_QETH_VLAN
2454 u16 *vlan_tag;
2455
2456 if (hdr->hdr.l3.ext_flags &
2457 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2458 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2459 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2460 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2461 *(vlan_tag + 1) = skb->protocol;
2462 skb->protocol = __constant_htons(ETH_P_8021Q);
2463 }
2464#endif /* CONFIG_QETH_VLAN */
2465}
2466
2467static inline __u16
2468qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2469 struct qeth_hdr *hdr)
2470{
2471 unsigned short vlan_id = 0;
2472#ifdef CONFIG_QETH_VLAN
2473 struct vlan_hdr *vhdr;
2474#endif
2475
2476 skb->pkt_type = PACKET_HOST;
2477 skb->protocol = qeth_type_trans(skb, skb->dev);
2478 if (card->options.checksum_type == NO_CHECKSUMMING)
2479 skb->ip_summed = CHECKSUM_UNNECESSARY;
2480 else
2481 skb->ip_summed = CHECKSUM_NONE;
2482#ifdef CONFIG_QETH_VLAN
2483 if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2484 vhdr = (struct vlan_hdr *) skb->data;
2485 skb->protocol =
2486 __constant_htons(vhdr->h_vlan_encapsulated_proto);
2487 vlan_id = hdr->hdr.l2.vlan_id;
2488 skb_pull(skb, VLAN_HLEN);
2489 }
2490#endif
9123e0d7 2491 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
1da177e4
LT		 2492 return vlan_id;
2493}
2494
2495static inline void
2496qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2497 struct qeth_hdr *hdr)
2498{
2499#ifdef CONFIG_QETH_IPV6
2500 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2501 skb->pkt_type = PACKET_HOST;
2502 skb->protocol = qeth_type_trans(skb, card->dev);
2503 return;
2504 }
2505#endif /* CONFIG_QETH_IPV6 */
2506 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2507 ETH_P_IP);
2508 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2509 case QETH_CAST_UNICAST:
2510 skb->pkt_type = PACKET_HOST;
2511 break;
2512 case QETH_CAST_MULTICAST:
2513 skb->pkt_type = PACKET_MULTICAST;
2514 card->stats.multicast++;
2515 break;
2516 case QETH_CAST_BROADCAST:
2517 skb->pkt_type = PACKET_BROADCAST;
2518 card->stats.multicast++;
2519 break;
2520 case QETH_CAST_ANYCAST:
2521 case QETH_CAST_NOCAST:
2522 default:
2523 skb->pkt_type = PACKET_HOST;
2524 }
2525 qeth_rebuild_skb_vlan(card, skb, hdr);
2526 if (card->options.fake_ll)
2527 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2528 else
2529 skb->mac.raw = skb->data;
2530 skb->ip_summed = card->options.checksum_type;
2531 if (card->options.checksum_type == HW_CHECKSUMMING){
2532 if ( (hdr->hdr.l3.ext_flags &
2533 (QETH_HDR_EXT_CSUM_HDR_REQ |
2534 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2535 (QETH_HDR_EXT_CSUM_HDR_REQ |
2536 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2537 skb->ip_summed = CHECKSUM_UNNECESSARY;
2538 else
2539 skb->ip_summed = SW_CHECKSUMMING;
2540 }
2541}
2542
2543static inline void
2544qeth_process_inbound_buffer(struct qeth_card *card,
2545 struct qeth_qdio_buffer *buf, int index)
2546{
2547 struct qdio_buffer_element *element;
2548 struct sk_buff *skb;
2549 struct qeth_hdr *hdr;
2550 int offset;
2551 int rxrc;
2552 __u16 vlan_tag = 0;
2553
2554 /* get first element of current buffer */
2555 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2556 offset = 0;
2557#ifdef CONFIG_QETH_PERF_STATS
2558 card->perf_stats.bufs_rec++;
2559#endif
2560 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2561 &offset, &hdr))) {
2562 skb->dev = card->dev;
2563 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2564 vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
500f83ab 2565 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
1da177e4 2566 qeth_rebuild_skb(card, skb, hdr);
500f83ab
UB		 2567 else { /*in case of OSN*/
2568 skb_push(skb, sizeof(struct qeth_hdr));
2569 memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2570 }
1da177e4
LT		 2571 /* is device UP ? */
2572 if (!(card->dev->flags & IFF_UP)){
2573 dev_kfree_skb_any(skb);
2574 continue;
2575 }
2576#ifdef CONFIG_QETH_VLAN
2577 if (vlan_tag)
2578 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2579 else
2580#endif
500f83ab
UB		 2581 if (card->info.type == QETH_CARD_TYPE_OSN)
2582 rxrc = card->osn_info.data_cb(skb);
2583 else
2584 rxrc = netif_rx(skb);
1da177e4
LT		 2585 card->dev->last_rx = jiffies;
2586 card->stats.rx_packets++;
2587 card->stats.rx_bytes += skb->len;
2588 }
2589}
2590
2591static inline struct qeth_buffer_pool_entry *
2592qeth_get_buffer_pool_entry(struct qeth_card *card)
2593{
2594 struct qeth_buffer_pool_entry *entry;
2595
2596 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2597 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2598 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2599 struct qeth_buffer_pool_entry, list);
2600 list_del_init(&entry->list);
2601 return entry;
2602 }
2603 return NULL;
2604}
2605
2606static inline void
2607qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2608{
2609 struct qeth_buffer_pool_entry *pool_entry;
2610 int i;
2611
2612 pool_entry = qeth_get_buffer_pool_entry(card);
2613 /*
2614 * since the buffer is accessed only from the input_tasklet
2615 * there shouldn't be a need to synchronize; also, since we use
2616 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2617 * buffers
2618 */
2619 BUG_ON(!pool_entry);
2620
2621 buf->pool_entry = pool_entry;
2622 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2623 buf->buffer->element[i].length = PAGE_SIZE;
2624 buf->buffer->element[i].addr = pool_entry->elements[i];
2625 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2626 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2627 else
2628 buf->buffer->element[i].flags = 0;
2629 }
2630 buf->state = QETH_QDIO_BUF_EMPTY;
2631}
2632
2633static inline void
2634qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2635 struct qeth_qdio_out_buffer *buf)
2636{
2637 int i;
2638 struct sk_buff *skb;
2639
2640 /* is PCI flag set on buffer? */
2641 if (buf->buffer->element[0].flags & 0x40)
2642 atomic_dec(&queue->set_pci_flags_count);
2643
2644 while ((skb = skb_dequeue(&buf->skb_list))){
2645 atomic_dec(&skb->users);
2646 dev_kfree_skb_any(skb);
2647 }
2648 qeth_eddp_buf_release_contexts(buf);
2649 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2650 buf->buffer->element[i].length = 0;
2651 buf->buffer->element[i].addr = NULL;
2652 buf->buffer->element[i].flags = 0;
2653 }
2654 buf->next_element_to_fill = 0;
2655 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2656}
2657
2658static inline void
2659qeth_queue_input_buffer(struct qeth_card *card, int index)
2660{
2661 struct qeth_qdio_q *queue = card->qdio.in_q;
2662 int count;
2663 int i;
2664 int rc;
2665
2666 QETH_DBF_TEXT(trace,6,"queinbuf");
2667 count = (index < queue->next_buf_to_init)?
2668 card->qdio.in_buf_pool.buf_count -
2669 (queue->next_buf_to_init - index) :
2670 card->qdio.in_buf_pool.buf_count -
2671 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2672 /* only requeue at a certain threshold to avoid SIGAs */
2673 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2674 for (i = queue->next_buf_to_init;
2675 i < queue->next_buf_to_init + count; ++i)
2676 qeth_init_input_buffer(card,
2677 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2678 /*
2679 * according to old code it should be avoided to requeue all
2680 * 128 buffers in order to benefit from PCI avoidance.
2681 * this function keeps at least one buffer (the buffer at
2682 * 'index') un-requeued -> this buffer is the first buffer that
2683 * will be requeued the next time
2684 */
2685#ifdef CONFIG_QETH_PERF_STATS
2686 card->perf_stats.inbound_do_qdio_cnt++;
2687 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2688#endif
2689 rc = do_QDIO(CARD_DDEV(card),
2690 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2691 0, queue->next_buf_to_init, count, NULL);
2692#ifdef CONFIG_QETH_PERF_STATS
2693 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2694 card->perf_stats.inbound_do_qdio_start_time;
2695#endif
2696 if (rc){
2697 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2698 "return %i (device %s).\n",
2699 rc, CARD_DDEV_ID(card));
2700 QETH_DBF_TEXT(trace,2,"qinberr");
2701 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2702 }
2703 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2704 QDIO_MAX_BUFFERS_PER_Q;
2705 }
2706}
2707
2708static inline void
2709qeth_put_buffer_pool_entry(struct qeth_card *card,
2710 struct qeth_buffer_pool_entry *entry)
2711{
2712 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2713 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2714}
2715
2716static void
2717qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2718 unsigned int qdio_err, unsigned int siga_err,
2719 unsigned int queue, int first_element, int count,
2720 unsigned long card_ptr)
2721{
2722 struct net_device *net_dev;
2723 struct qeth_card *card;
2724 struct qeth_qdio_buffer *buffer;
2725 int index;
2726 int i;
2727
2728 QETH_DBF_TEXT(trace, 6, "qdinput");
2729 card = (struct qeth_card *) card_ptr;
2730 net_dev = card->dev;
2731#ifdef CONFIG_QETH_PERF_STATS
2732 card->perf_stats.inbound_cnt++;
2733 card->perf_stats.inbound_start_time = qeth_get_micros();
2734#endif
2735 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2736 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2737 QETH_DBF_TEXT(trace, 1,"qdinchk");
2738 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2739 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2740 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2741 qeth_schedule_recovery(card);
2742 return;
2743 }
2744 }
2745 for (i = first_element; i < (first_element + count); ++i) {
2746 index = i % QDIO_MAX_BUFFERS_PER_Q;
2747 buffer = &card->qdio.in_q->bufs[index];
2748 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2749 qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2750 qeth_process_inbound_buffer(card, buffer, index);
2751 /* clear buffer and give back to hardware */
2752 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2753 qeth_queue_input_buffer(card, index);
2754 }
2755#ifdef CONFIG_QETH_PERF_STATS
2756 card->perf_stats.inbound_time += qeth_get_micros() -
2757 card->perf_stats.inbound_start_time;
2758#endif
2759}
2760
2761static inline int
2762qeth_handle_send_error(struct qeth_card *card,
2763 struct qeth_qdio_out_buffer *buffer,
2764 int qdio_err, int siga_err)
2765{
2766 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2767 int cc = siga_err & 3;
2768
2769 QETH_DBF_TEXT(trace, 6, "hdsnderr");
2770 switch (cc) {
2771 case 0:
2772 if (qdio_err){
2773 QETH_DBF_TEXT(trace, 1,"lnkfail");
2774 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2775 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2776 (u16)qdio_err, (u8)sbalf15);
2777 return QETH_SEND_ERROR_LINK_FAILURE;
2778 }
2779 return QETH_SEND_ERROR_NONE;
2780 case 2:
2781 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2782 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2783 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2784 return QETH_SEND_ERROR_KICK_IT;
2785 }
2786 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2787 return QETH_SEND_ERROR_RETRY;
2788 return QETH_SEND_ERROR_LINK_FAILURE;
2789 /* look at qdio_error and sbalf 15 */
2790 case 1:
2791 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2792 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2793 return QETH_SEND_ERROR_LINK_FAILURE;
2794 case 3:
2795 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2796 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2797 return QETH_SEND_ERROR_KICK_IT;
2798 }
2799 return QETH_SEND_ERROR_LINK_FAILURE;
2800}
2801
2802void
2803qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2804 int index, int count)
2805{
2806 struct qeth_qdio_out_buffer *buf;
2807 int rc;
2808 int i;
2809
2810 QETH_DBF_TEXT(trace, 6, "flushbuf");
2811
2812 for (i = index; i < index + count; ++i) {
2813 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2814 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2815 SBAL_FLAGS_LAST_ENTRY;
2816
2817 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2818 continue;
2819
2820 if (!queue->do_pack){
2821 if ((atomic_read(&queue->used_buffers) >=
2822 (QETH_HIGH_WATERMARK_PACK -
2823 QETH_WATERMARK_PACK_FUZZ)) &&
2824 !atomic_read(&queue->set_pci_flags_count)){
2825 /* it's likely that we'll go to packing
2826 * mode soon */
2827 atomic_inc(&queue->set_pci_flags_count);
2828 buf->buffer->element[0].flags |= 0x40;
2829 }
2830 } else {
2831 if (!atomic_read(&queue->set_pci_flags_count)){
2832 /*
2833 * there's no outstanding PCI any more, so we
2834 * have to request a PCI to be sure the the PCI
2835 * will wake at some time in the future then we
2836 * can flush packed buffers that might still be
2837 * hanging around, which can happen if no
2838 * further send was requested by the stack
2839 */
2840 atomic_inc(&queue->set_pci_flags_count);
2841 buf->buffer->element[0].flags |= 0x40;
2842 }
2843 }
2844 }
2845
2846 queue->card->dev->trans_start = jiffies;
2847#ifdef CONFIG_QETH_PERF_STATS
2848 queue->card->perf_stats.outbound_do_qdio_cnt++;
2849 queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2850#endif
2851 if (under_int)
2852 rc = do_QDIO(CARD_DDEV(queue->card),
2853 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2854 queue->queue_no, index, count, NULL);
2855 else
2856 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2857 queue->queue_no, index, count, NULL);
2858#ifdef CONFIG_QETH_PERF_STATS
2859 queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2860 queue->card->perf_stats.outbound_do_qdio_start_time;
2861#endif
2862 if (rc){
1da177e4
LT		 2863 QETH_DBF_TEXT(trace, 2, "flushbuf");
2864 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
f3d242e8 2865 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
1da177e4
LT		 2866 queue->card->stats.tx_errors += count;
2867 /* this must not happen under normal circumstances. if it
2868 * happens something is really wrong -> recover */
2869 qeth_schedule_recovery(queue->card);
2870 return;
2871 }
2872 atomic_add(count, &queue->used_buffers);
2873#ifdef CONFIG_QETH_PERF_STATS
2874 queue->card->perf_stats.bufs_sent += count;
2875#endif
2876}
2877
2878/*
2879 * Switched to packing state if the number of used buffers on a queue
2880 * reaches a certain limit.
2881 */
2882static inline void
2883qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2884{
2885 if (!queue->do_pack) {
2886 if (atomic_read(&queue->used_buffers)
2887 >= QETH_HIGH_WATERMARK_PACK){
2888 /* switch non-PACKING -> PACKING */
2889 QETH_DBF_TEXT(trace, 6, "np->pack");
2890#ifdef CONFIG_QETH_PERF_STATS
2891 queue->card->perf_stats.sc_dp_p++;
2892#endif
2893 queue->do_pack = 1;
2894 }
2895 }
2896}
2897
2898/*
2899 * Switches from packing to non-packing mode. If there is a packing
2900 * buffer on the queue this buffer will be prepared to be flushed.
2901 * In that case 1 is returned to inform the caller. If no buffer
2902 * has to be flushed, zero is returned.
2903 */
2904static inline int
2905qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2906{
2907 struct qeth_qdio_out_buffer *buffer;
2908 int flush_count = 0;
2909
2910 if (queue->do_pack) {
2911 if (atomic_read(&queue->used_buffers)
2912 <= QETH_LOW_WATERMARK_PACK) {
2913 /* switch PACKING -> non-PACKING */
2914 QETH_DBF_TEXT(trace, 6, "pack->np");
2915#ifdef CONFIG_QETH_PERF_STATS
2916 queue->card->perf_stats.sc_p_dp++;
2917#endif
2918 queue->do_pack = 0;
2919 /* flush packing buffers */
2920 buffer = &queue->bufs[queue->next_buf_to_fill];
2921 if ((atomic_read(&buffer->state) ==
2922 QETH_QDIO_BUF_EMPTY) &&
2923 (buffer->next_element_to_fill > 0)) {
2924 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2925 flush_count++;
2926 queue->next_buf_to_fill =
2927 (queue->next_buf_to_fill + 1) %
2928 QDIO_MAX_BUFFERS_PER_Q;
2929 }
2930 }
2931 }
2932 return flush_count;
2933}
2934
2935/*
2936 * Called to flush a packing buffer if no more pci flags are on the queue.
2937 * Checks if there is a packing buffer and prepares it to be flushed.
2938 * In that case returns 1, otherwise zero.
2939 */
2940static inline int
2941qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2942{
2943 struct qeth_qdio_out_buffer *buffer;
2944
2945 buffer = &queue->bufs[queue->next_buf_to_fill];
2946 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2947 (buffer->next_element_to_fill > 0)){
2948 /* it's a packing buffer */
2949 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2950 queue->next_buf_to_fill =
2951 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2952 return 1;
2953 }
2954 return 0;
2955}
2956
2957static inline void
2958qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2959{
2960 int index;
2961 int flush_cnt = 0;
2962 int q_was_packing = 0;
2963
2964 /*
2965 * check if weed have to switch to non-packing mode or if
2966 * we have to get a pci flag out on the queue
2967 */
2968 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2969 !atomic_read(&queue->set_pci_flags_count)){
2970 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2971 QETH_OUT_Q_UNLOCKED) {
2972 /*
2973 * If we get in here, there was no action in
2974 * do_send_packet. So, we check if there is a
2975 * packing buffer to be flushed here.
2976 */
2977 netif_stop_queue(queue->card->dev);
2978 index = queue->next_buf_to_fill;
2979 q_was_packing = queue->do_pack;
2980 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2981 if (!flush_cnt &&
2982 !atomic_read(&queue->set_pci_flags_count))
2983 flush_cnt +=
2984 qeth_flush_buffers_on_no_pci(queue);
2985#ifdef CONFIG_QETH_PERF_STATS
2986 if (q_was_packing)
2987 queue->card->perf_stats.bufs_sent_pack +=
2988 flush_cnt;
2989#endif
2990 if (flush_cnt)
2991 qeth_flush_buffers(queue, 1, index, flush_cnt);
2992 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2993 }
2994 }
2995}
2996
2997static void
2998qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2999 unsigned int qdio_error, unsigned int siga_error,
3000 unsigned int __queue, int first_element, int count,
3001 unsigned long card_ptr)
3002{
3003 struct qeth_card *card = (struct qeth_card *) card_ptr;
3004 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3005 struct qeth_qdio_out_buffer *buffer;
3006 int i;
3007
3008 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3009 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3010 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
f3d242e8
FP		 3011 QETH_DBF_TEXT(trace, 2, "achkcond");
3012 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
1da177e4
LT		 3013 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3014 netif_stop_queue(card->dev);
3015 qeth_schedule_recovery(card);
3016 return;
3017 }
3018 }
3019#ifdef CONFIG_QETH_PERF_STATS
3020 card->perf_stats.outbound_handler_cnt++;
3021 card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3022#endif
3023 for(i = first_element; i < (first_element + count); ++i){
3024 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3025 /*we only handle the KICK_IT error by doing a recovery */
3026 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
3027 == QETH_SEND_ERROR_KICK_IT){
3028 netif_stop_queue(card->dev);
3029 qeth_schedule_recovery(card);
3030 return;
3031 }
3032 qeth_clear_output_buffer(queue, buffer);
3033 }
3034 atomic_sub(count, &queue->used_buffers);
3035 /* check if we need to do something on this outbound queue */
3036 if (card->info.type != QETH_CARD_TYPE_IQD)
3037 qeth_check_outbound_queue(queue);
3038
3039 netif_wake_queue(queue->card->dev);
3040#ifdef CONFIG_QETH_PERF_STATS
3041 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3042 card->perf_stats.outbound_handler_start_time;
3043#endif
3044}
3045
3046static void
3047qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3048{
3049
3050 param_field[0] = _ascebc['P'];
3051 param_field[1] = _ascebc['C'];
3052 param_field[2] = _ascebc['I'];
3053 param_field[3] = _ascebc['T'];
3054 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3055 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3056 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3057}
3058
3059static void
3060qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3061{
3062 param_field[16] = _ascebc['B'];
3063 param_field[17] = _ascebc['L'];
3064 param_field[18] = _ascebc['K'];
3065 param_field[19] = _ascebc['T'];
3066 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3067 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3068 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3069}
3070
3071static void
3072qeth_initialize_working_pool_list(struct qeth_card *card)
3073{
3074 struct qeth_buffer_pool_entry *entry;
3075
3076 QETH_DBF_TEXT(trace,5,"inwrklst");
3077
3078 list_for_each_entry(entry,
3079 &card->qdio.init_pool.entry_list, init_list) {
3080 qeth_put_buffer_pool_entry(card,entry);
3081 }
3082}
3083
3084static void
3085qeth_clear_working_pool_list(struct qeth_card *card)
3086{
3087 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3088
3089 QETH_DBF_TEXT(trace,5,"clwrklst");
3090 list_for_each_entry_safe(pool_entry, tmp,
3091 &card->qdio.in_buf_pool.entry_list, list){
3092 list_del(&pool_entry->list);
3093 }
3094}
3095
3096static void
3097qeth_free_buffer_pool(struct qeth_card *card)
3098{
3099 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3100 int i=0;
3101 QETH_DBF_TEXT(trace,5,"freepool");
3102 list_for_each_entry_safe(pool_entry, tmp,
3103 &card->qdio.init_pool.entry_list, init_list){
3104 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3105 free_page((unsigned long)pool_entry->elements[i]);
3106 list_del(&pool_entry->init_list);
3107 kfree(pool_entry);
3108 }
3109}
3110
3111static int
3112qeth_alloc_buffer_pool(struct qeth_card *card)
3113{
3114 struct qeth_buffer_pool_entry *pool_entry;
3115 void *ptr;
3116 int i, j;
3117
3118 QETH_DBF_TEXT(trace,5,"alocpool");
3119 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3120 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3121 if (!pool_entry){
3122 qeth_free_buffer_pool(card);
3123 return -ENOMEM;
3124 }
3125 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
9123e0d7 3126 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3127 if (!ptr) {
3128 while (j > 0)
3129 free_page((unsigned long)
3130 pool_entry->elements[--j]);
3131 kfree(pool_entry);
3132 qeth_free_buffer_pool(card);
3133 return -ENOMEM;
3134 }
3135 pool_entry->elements[j] = ptr;
3136 }
3137 list_add(&pool_entry->init_list,
3138 &card->qdio.init_pool.entry_list);
3139 }
3140 return 0;
3141}
3142
3143int
3144qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3145{
3146 QETH_DBF_TEXT(trace, 2, "realcbp");
3147
3148 if ((card->state != CARD_STATE_DOWN) &&
3149 (card->state != CARD_STATE_RECOVER))
3150 return -EPERM;
3151
3152 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3153 qeth_clear_working_pool_list(card);
3154 qeth_free_buffer_pool(card);
3155 card->qdio.in_buf_pool.buf_count = bufcnt;
3156 card->qdio.init_pool.buf_count = bufcnt;
3157 return qeth_alloc_buffer_pool(card);
3158}
3159
3160static int
3161qeth_alloc_qdio_buffers(struct qeth_card *card)
3162{
3163 int i, j;
3164
3165 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3166
3167 if (card->qdio.state == QETH_QDIO_ALLOCATED)
3168 return 0;
3169
9123e0d7
UB		 3170 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3171 GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3172 if (!card->qdio.in_q)
3173 return - ENOMEM;
3174 QETH_DBF_TEXT(setup, 2, "inq");
3175 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3176 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3177 /* give inbound qeth_qdio_buffers their qdio_buffers */
3178 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3179 card->qdio.in_q->bufs[i].buffer =
3180 &card->qdio.in_q->qdio_bufs[i];
3181 /* inbound buffer pool */
3182 if (qeth_alloc_buffer_pool(card)){
3183 kfree(card->qdio.in_q);
3184 return -ENOMEM;
3185 }
3186 /* outbound */
3187 card->qdio.out_qs =
3188 kmalloc(card->qdio.no_out_queues *
3189 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3190 if (!card->qdio.out_qs){
3191 qeth_free_buffer_pool(card);
3192 return -ENOMEM;
3193 }
3194 for (i = 0; i < card->qdio.no_out_queues; ++i){
3195 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
9123e0d7 3196 GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3197 if (!card->qdio.out_qs[i]){
3198 while (i > 0)
3199 kfree(card->qdio.out_qs[--i]);
3200 kfree(card->qdio.out_qs);
3201 return -ENOMEM;
3202 }
3203 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3204 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3205 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3206 card->qdio.out_qs[i]->queue_no = i;
3207 /* give outbound qeth_qdio_buffers their qdio_buffers */
3208 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3209 card->qdio.out_qs[i]->bufs[j].buffer =
3210 &card->qdio.out_qs[i]->qdio_bufs[j];
3211 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3212 skb_list);
3213 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3214 }
3215 }
3216 card->qdio.state = QETH_QDIO_ALLOCATED;
3217 return 0;
3218}
3219
3220static void
3221qeth_free_qdio_buffers(struct qeth_card *card)
3222{
3223 int i, j;
3224
3225 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3226 if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3227 return;
3228 kfree(card->qdio.in_q);
3229 /* inbound buffer pool */
3230 qeth_free_buffer_pool(card);
3231 /* free outbound qdio_qs */
3232 for (i = 0; i < card->qdio.no_out_queues; ++i){
3233 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3234 qeth_clear_output_buffer(card->qdio.out_qs[i],
3235 &card->qdio.out_qs[i]->bufs[j]);
3236 kfree(card->qdio.out_qs[i]);
3237 }
3238 kfree(card->qdio.out_qs);
3239 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3240}
3241
3242static void
3243qeth_clear_qdio_buffers(struct qeth_card *card)
3244{
3245 int i, j;
3246
3247 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3248 /* clear outbound buffers to free skbs */
3249 for (i = 0; i < card->qdio.no_out_queues; ++i)
3250 if (card->qdio.out_qs[i]){
3251 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3252 qeth_clear_output_buffer(card->qdio.out_qs[i],
3253 &card->qdio.out_qs[i]->bufs[j]);
3254 }
3255}
3256
3257static void
3258qeth_init_qdio_info(struct qeth_card *card)
3259{
3260 QETH_DBF_TEXT(setup, 4, "intqdinf");
3261 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3262 /* inbound */
3263 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3264 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3265 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3266 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3267 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3268 /* outbound */
1da177e4
LT		 3269}
3270
3271static int
3272qeth_init_qdio_queues(struct qeth_card *card)
3273{
3274 int i, j;
3275 int rc;
3276
3277 QETH_DBF_TEXT(setup, 2, "initqdqs");
3278
3279 /* inbound queue */
3280 memset(card->qdio.in_q->qdio_bufs, 0,
3281 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3282 qeth_initialize_working_pool_list(card);
3283 /*give only as many buffers to hardware as we have buffer pool entries*/
3284 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3285 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3286 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3287 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3288 card->qdio.in_buf_pool.buf_count - 1, NULL);
3289 if (rc) {
3290 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3291 return rc;
3292 }
3293 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3294 if (rc) {
3295 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3296 return rc;
3297 }
3298 /* outbound queue */
3299 for (i = 0; i < card->qdio.no_out_queues; ++i){
3300 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3301 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3302 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3303 qeth_clear_output_buffer(card->qdio.out_qs[i],
3304 &card->qdio.out_qs[i]->bufs[j]);
3305 }
3306 card->qdio.out_qs[i]->card = card;
3307 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3308 card->qdio.out_qs[i]->do_pack = 0;
3309 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3310 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3311 atomic_set(&card->qdio.out_qs[i]->state,
3312 QETH_OUT_Q_UNLOCKED);
3313 }
3314 return 0;
3315}
3316
3317static int
3318qeth_qdio_establish(struct qeth_card *card)
3319{
3320 struct qdio_initialize init_data;
3321 char *qib_param_field;
3322 struct qdio_buffer **in_sbal_ptrs;
3323 struct qdio_buffer **out_sbal_ptrs;
3324 int i, j, k;
3325 int rc;
3326
3327 QETH_DBF_TEXT(setup, 2, "qdioest");
3328
3329 qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3330 GFP_KERNEL);
3331 if (!qib_param_field)
3332 return -ENOMEM;
3333
3334 memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3335
3336 qeth_create_qib_param_field(card, qib_param_field);
3337 qeth_create_qib_param_field_blkt(card, qib_param_field);
3338
3339 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3340 GFP_KERNEL);
3341 if (!in_sbal_ptrs) {
3342 kfree(qib_param_field);
3343 return -ENOMEM;
3344 }
3345 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3346 in_sbal_ptrs[i] = (struct qdio_buffer *)
3347 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3348
3349 out_sbal_ptrs =
3350 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3351 sizeof(void *), GFP_KERNEL);
3352 if (!out_sbal_ptrs) {
3353 kfree(in_sbal_ptrs);
3354 kfree(qib_param_field);
3355 return -ENOMEM;
3356 }
3357 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3358 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3359 out_sbal_ptrs[k] = (struct qdio_buffer *)
3360 virt_to_phys(card->qdio.out_qs[i]->
3361 bufs[j].buffer);
3362 }
3363
3364 memset(&init_data, 0, sizeof(struct qdio_initialize));
3365 init_data.cdev = CARD_DDEV(card);
3366 init_data.q_format = qeth_get_qdio_q_format(card);
3367 init_data.qib_param_field_format = 0;
3368 init_data.qib_param_field = qib_param_field;
3369 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3370 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3371 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3372 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3373 init_data.no_input_qs = 1;
3374 init_data.no_output_qs = card->qdio.no_out_queues;
3375 init_data.input_handler = (qdio_handler_t *)
3376 qeth_qdio_input_handler;
3377 init_data.output_handler = (qdio_handler_t *)
3378 qeth_qdio_output_handler;
3379 init_data.int_parm = (unsigned long) card;
3380 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3381 QDIO_OUTBOUND_0COPY_SBALS |
3382 QDIO_USE_OUTBOUND_PCIS;
3383 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3384 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3385
3386 if (!(rc = qdio_initialize(&init_data)))
3387 card->qdio.state = QETH_QDIO_ESTABLISHED;
3388
3389 kfree(out_sbal_ptrs);
3390 kfree(in_sbal_ptrs);
3391 kfree(qib_param_field);
3392 return rc;
3393}
3394
3395static int
3396qeth_qdio_activate(struct qeth_card *card)
3397{
3398 QETH_DBF_TEXT(setup,3,"qdioact");
3399 return qdio_activate(CARD_DDEV(card), 0);
3400}
3401
3402static int
3403qeth_clear_channel(struct qeth_channel *channel)
3404{
3405 unsigned long flags;
3406 struct qeth_card *card;
3407 int rc;
3408
3409 QETH_DBF_TEXT(trace,3,"clearch");
3410 card = CARD_FROM_CDEV(channel->ccwdev);
3411 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3412 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3413 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3414
3415 if (rc)
3416 return rc;
3417 rc = wait_event_interruptible_timeout(card->wait_q,
3418 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3419 if (rc == -ERESTARTSYS)
3420 return rc;
3421 if (channel->state != CH_STATE_STOPPED)
3422 return -ETIME;
3423 channel->state = CH_STATE_DOWN;
3424 return 0;
3425}
3426
3427static int
3428qeth_halt_channel(struct qeth_channel *channel)
3429{
3430 unsigned long flags;
3431 struct qeth_card *card;
3432 int rc;
3433
3434 QETH_DBF_TEXT(trace,3,"haltch");
3435 card = CARD_FROM_CDEV(channel->ccwdev);
3436 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3437 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3438 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3439
3440 if (rc)
3441 return rc;
3442 rc = wait_event_interruptible_timeout(card->wait_q,
3443 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3444 if (rc == -ERESTARTSYS)
3445 return rc;
3446 if (channel->state != CH_STATE_HALTED)
3447 return -ETIME;
3448 return 0;
3449}
3450
3451static int
3452qeth_halt_channels(struct qeth_card *card)
3453{
f3d242e8 3454 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3455
3456 QETH_DBF_TEXT(trace,3,"haltchs");
f3d242e8
FP		 3457 rc1 = qeth_halt_channel(&card->read);
3458 rc2 = qeth_halt_channel(&card->write);
3459 rc3 = qeth_halt_channel(&card->data);
3460 if (rc1)
3461 return rc1;
3462 if (rc2)
3463 return rc2;
3464 return rc3;
1da177e4
LT		 3465}
3466static int
3467qeth_clear_channels(struct qeth_card *card)
3468{
f3d242e8 3469 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3470
3471 QETH_DBF_TEXT(trace,3,"clearchs");
f3d242e8
FP		 3472 rc1 = qeth_clear_channel(&card->read);
3473 rc2 = qeth_clear_channel(&card->write);
3474 rc3 = qeth_clear_channel(&card->data);
3475 if (rc1)
3476 return rc1;
3477 if (rc2)
3478 return rc2;
3479 return rc3;
1da177e4
LT		 3480}
3481
3482static int
3483qeth_clear_halt_card(struct qeth_card *card, int halt)
3484{
3485 int rc = 0;
3486
3487 QETH_DBF_TEXT(trace,3,"clhacrd");
3488 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3489
3490 if (halt)
3491 rc = qeth_halt_channels(card);
3492 if (rc)
3493 return rc;
3494 return qeth_clear_channels(card);
3495}
3496
3497static int
3498qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3499{
3500 int rc = 0;
3501
3502 QETH_DBF_TEXT(trace,3,"qdioclr");
3503 if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3504 if ((rc = qdio_cleanup(CARD_DDEV(card),
3505 (card->info.type == QETH_CARD_TYPE_IQD) ?
3506 QDIO_FLAG_CLEANUP_USING_HALT :
3507 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3508 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3509 card->qdio.state = QETH_QDIO_ALLOCATED;
3510 }
3511 if ((rc = qeth_clear_halt_card(card, use_halt)))
3512 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3513 card->state = CARD_STATE_DOWN;
3514 return rc;
3515}
3516
3517static int
3518qeth_dm_act(struct qeth_card *card)
3519{
3520 int rc;
3521 struct qeth_cmd_buffer *iob;
3522
3523 QETH_DBF_TEXT(setup,2,"dmact");
3524
3525 iob = qeth_wait_for_buffer(&card->write);
3526 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3527
3528 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3529 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3530 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3531 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3532 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3533 return rc;
3534}
3535
3536static int
3537qeth_mpc_initialize(struct qeth_card *card)
3538{
3539 int rc;
3540
3541 QETH_DBF_TEXT(setup,2,"mpcinit");
3542
3543 if ((rc = qeth_issue_next_read(card))){
3544 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3545 return rc;
3546 }
3547 if ((rc = qeth_cm_enable(card))){
3548 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
f3d242e8 3549 goto out_qdio;
1da177e4
LT		 3550 }
3551 if ((rc = qeth_cm_setup(card))){
3552 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
f3d242e8 3553 goto out_qdio;
1da177e4
LT		 3554 }
3555 if ((rc = qeth_ulp_enable(card))){
3556 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
f3d242e8 3557 goto out_qdio;
1da177e4
LT		 3558 }
3559 if ((rc = qeth_ulp_setup(card))){
3560 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3561 goto out_qdio;
1da177e4
LT		 3562 }
3563 if ((rc = qeth_alloc_qdio_buffers(card))){
3564 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3565 goto out_qdio;
1da177e4
LT		 3566 }
3567 if ((rc = qeth_qdio_establish(card))){
3568 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3569 qeth_free_qdio_buffers(card);
3570 goto out_qdio;
3571 }
3572 if ((rc = qeth_qdio_activate(card))){
3573 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3574 goto out_qdio;
3575 }
3576 if ((rc = qeth_dm_act(card))){
3577 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3578 goto out_qdio;
3579 }
3580
3581 return 0;
3582out_qdio:
500f83ab 3583 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 3584 return rc;
3585}
3586
3587static struct net_device *
3588qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3589{
3590 struct net_device *dev = NULL;
3591
3592 switch (type) {
3593 case QETH_CARD_TYPE_OSAE:
3594 switch (linktype) {
3595 case QETH_LINK_TYPE_LANE_TR:
3596 case QETH_LINK_TYPE_HSTR:
3597#ifdef CONFIG_TR
3598 dev = alloc_trdev(0);
3599#endif /* CONFIG_TR */
3600 break;
3601 default:
3602 dev = alloc_etherdev(0);
3603 }
3604 break;
3605 case QETH_CARD_TYPE_IQD:
3606 dev = alloc_netdev(0, "hsi%d", ether_setup);
3607 break;
500f83ab
UB		 3608 case QETH_CARD_TYPE_OSN:
3609 dev = alloc_netdev(0, "osn%d", ether_setup);
3610 break;
1da177e4
LT		 3611 default:
3612 dev = alloc_etherdev(0);
3613 }
3614 return dev;
3615}
3616
3617/*hard_header fake function; used in case fake_ll is set */
3618static int
3619qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3620 unsigned short type, void *daddr, void *saddr,
3621 unsigned len)
3622{
e23dd9cd
FP		 3623 if(dev->type == ARPHRD_IEEE802_TR){
3624 struct trh_hdr *hdr;
3625 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3626 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3627 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3628 return QETH_FAKE_LL_LEN_TR;
3629
3630 } else {
3631 struct ethhdr *hdr;
3632 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3633 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3634 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3635 if (type != ETH_P_802_3)
3636 hdr->h_proto = htons(type);
3637 else
3638 hdr->h_proto = htons(len);
3639 return QETH_FAKE_LL_LEN_ETH;
1da177e4 3640
e23dd9cd 3641 }
1da177e4
LT		 3642}
3643
3644static inline int
3645qeth_send_packet(struct qeth_card *, struct sk_buff *);
3646
3647static int
3648qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3649{
3650 int rc;
3651 struct qeth_card *card;
3652
3653 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3654 card = (struct qeth_card *)dev->priv;
3655 if (skb==NULL) {
3656 card->stats.tx_dropped++;
3657 card->stats.tx_errors++;
3658 /* return OK; otherwise ksoftirqd goes to 100% */
3659 return NETDEV_TX_OK;
3660 }
3661 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3662 card->stats.tx_dropped++;
3663 card->stats.tx_errors++;
3664 card->stats.tx_carrier_errors++;
3665 dev_kfree_skb_any(skb);
3666 /* return OK; otherwise ksoftirqd goes to 100% */
3667 return NETDEV_TX_OK;
3668 }
3669#ifdef CONFIG_QETH_PERF_STATS
3670 card->perf_stats.outbound_cnt++;
3671 card->perf_stats.outbound_start_time = qeth_get_micros();
3672#endif
3673 netif_stop_queue(dev);
3674 if ((rc = qeth_send_packet(card, skb))) {
3675 if (rc == -EBUSY) {
3676 return NETDEV_TX_BUSY;
3677 } else {
3678 card->stats.tx_errors++;
3679 card->stats.tx_dropped++;
3680 dev_kfree_skb_any(skb);
3681 /*set to OK; otherwise ksoftirqd goes to 100% */
3682 rc = NETDEV_TX_OK;
3683 }
3684 }
3685 netif_wake_queue(dev);
3686#ifdef CONFIG_QETH_PERF_STATS
3687 card->perf_stats.outbound_time += qeth_get_micros() -
3688 card->perf_stats.outbound_start_time;
3689#endif
3690 return rc;
3691}
3692
3693static int
3694qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3695{
3696 int rc = 0;
3697#ifdef CONFIG_QETH_VLAN
3698 struct vlan_group *vg;
3699 int i;
3700
3701 if (!(vg = card->vlangrp))
3702 return rc;
3703
3704 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3705 if (vg->vlan_devices[i] == dev){
3706 rc = QETH_VLAN_CARD;
3707 break;
3708 }
3709 }
3710#endif
3711 return rc;
3712}
3713
3714static int
3715qeth_verify_dev(struct net_device *dev)
3716{
3717 struct qeth_card *card;
3718 unsigned long flags;
3719 int rc = 0;
3720
3721 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3722 list_for_each_entry(card, &qeth_card_list.list, list){
3723 if (card->dev == dev){
3724 rc = QETH_REAL_CARD;
3725 break;
3726 }
3727 rc = qeth_verify_vlan_dev(dev, card);
3728 if (rc)
3729 break;
3730 }
3731 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3732
3733 return rc;
3734}
3735
3736static struct qeth_card *
3737qeth_get_card_from_dev(struct net_device *dev)
3738{
3739 struct qeth_card *card = NULL;
3740 int rc;
3741
3742 rc = qeth_verify_dev(dev);
3743 if (rc == QETH_REAL_CARD)
3744 card = (struct qeth_card *)dev->priv;
3745 else if (rc == QETH_VLAN_CARD)
3746 card = (struct qeth_card *)
3747 VLAN_DEV_INFO(dev)->real_dev->priv;
3748
3749 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3750 return card ;
3751}
3752
3753static void
3754qeth_tx_timeout(struct net_device *dev)
3755{
3756 struct qeth_card *card;
3757
3758 card = (struct qeth_card *) dev->priv;
3759 card->stats.tx_errors++;
3760 qeth_schedule_recovery(card);
3761}
3762
3763static int
3764qeth_open(struct net_device *dev)
3765{
3766 struct qeth_card *card;
3767
3768 QETH_DBF_TEXT(trace, 4, "qethopen");
3769
3770 card = (struct qeth_card *) dev->priv;
3771
3772 if (card->state != CARD_STATE_SOFTSETUP)
3773 return -ENODEV;
3774
500f83ab
UB		 3775 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3776 (card->options.layer2) &&
1da177e4
LT		 3777 (!card->info.layer2_mac_registered)) {
3778 QETH_DBF_TEXT(trace,4,"nomacadr");
3779 return -EPERM;
3780 }
3781 card->dev->flags |= IFF_UP;
3782 netif_start_queue(dev);
3783 card->data.state = CH_STATE_UP;
3784 card->state = CARD_STATE_UP;
3785
3786 if (!card->lan_online){
3787 if (netif_carrier_ok(dev))
3788 netif_carrier_off(dev);
3789 }
3790 return 0;
3791}
3792
3793static int
3794qeth_stop(struct net_device *dev)
3795{
3796 struct qeth_card *card;
3797
3798 QETH_DBF_TEXT(trace, 4, "qethstop");
3799
3800 card = (struct qeth_card *) dev->priv;
3801
3802 netif_stop_queue(dev);
3803 card->dev->flags &= ~IFF_UP;
3804 if (card->state == CARD_STATE_UP)
3805 card->state = CARD_STATE_SOFTSETUP;
3806 return 0;
3807}
3808
3809static inline int
3810qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3811{
3812 int cast_type = RTN_UNSPEC;
3813
500f83ab
UB		 3814 if (card->info.type == QETH_CARD_TYPE_OSN)
3815 return cast_type;
3816
1da177e4
LT		 3817 if (skb->dst && skb->dst->neighbour){
3818 cast_type = skb->dst->neighbour->type;
3819 if ((cast_type == RTN_BROADCAST) ||
3820 (cast_type == RTN_MULTICAST) ||
3821 (cast_type == RTN_ANYCAST))
3822 return cast_type;
3823 else
3824 return RTN_UNSPEC;
3825 }
3826 /* try something else */
3827 if (skb->protocol == ETH_P_IPV6)
3828 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3829 else if (skb->protocol == ETH_P_IP)
3830 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3831 /* ... */
3832 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3833 return RTN_BROADCAST;
3834 else {
3835 u16 hdr_mac;
3836
3837 hdr_mac = *((u16 *)skb->data);
3838 /* tr multicast? */
3839 switch (card->info.link_type) {
3840 case QETH_LINK_TYPE_HSTR:
3841 case QETH_LINK_TYPE_LANE_TR:
3842 if ((hdr_mac == QETH_TR_MAC_NC) ||
3843 (hdr_mac == QETH_TR_MAC_C))
3844 return RTN_MULTICAST;
3845 /* eth or so multicast? */
3846 default:
3847 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3848 (hdr_mac == QETH_ETH_MAC_V6))
3849 return RTN_MULTICAST;
3850 }
3851 }
3852 return cast_type;
3853}
3854
3855static inline int
3856qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3857 int ipv, int cast_type)
3858{
3859 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3860 return card->qdio.default_out_queue;
3861 switch (card->qdio.no_out_queues) {
3862 case 4:
3863 if (cast_type && card->info.is_multicast_different)
3864 return card->info.is_multicast_different &
3865 (card->qdio.no_out_queues - 1);
3866 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3867 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3868 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3869 return 3;
3870 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3871 return 2;
3872 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3873 return 1;
3874 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3875 return 0;
3876 }
3877 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3878 return 3 - (skb->nh.iph->tos >> 6);
3879 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3880 /* TODO: IPv6!!! */
3881 }
3882 return card->qdio.default_out_queue;
3883 case 1: /* fallthrough for single-out-queue 1920-device */
3884 default:
3885 return card->qdio.default_out_queue;
3886 }
3887}
3888
3889static inline int
3890qeth_get_ip_version(struct sk_buff *skb)
3891{
3892 switch (skb->protocol) {
3893 case ETH_P_IPV6:
3894 return 6;
3895 case ETH_P_IP:
3896 return 4;
3897 default:
3898 return 0;
3899 }
3900}
3901
3902static inline int
3903qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3904 struct qeth_hdr **hdr, int ipv)
3905{
500f83ab 3906 int rc = 0;
1da177e4
LT		 3907#ifdef CONFIG_QETH_VLAN
3908 u16 *tag;
3909#endif
3910
3911 QETH_DBF_TEXT(trace, 6, "prepskb");
500f83ab
UB		 3912 if (card->info.type == QETH_CARD_TYPE_OSN) {
3913 *hdr = (struct qeth_hdr *)(*skb)->data;
3914 return rc;
3915 }
9cb90de8
FP		 3916 rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3917 if (rc)
3918 return rc;
1da177e4
LT		 3919#ifdef CONFIG_QETH_VLAN
3920 if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3921 ((ipv == 6) || card->options.layer2) ) {
3922 /*
3923 * Move the mac addresses (6 bytes src, 6 bytes dest)
3924 * to the beginning of the new header. We are using three
3925 * memcpys instead of one memmove to save cycles.
3926 */
3927 skb_push(*skb, VLAN_HLEN);
3928 memcpy((*skb)->data, (*skb)->data + 4, 4);
3929 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3930 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3931 tag = (u16 *)((*skb)->data + 12);
3932 /*
3933 * first two bytes = ETH_P_8021Q (0x8100)
3934 * second two bytes = VLANID
3935 */
3936 *tag = __constant_htons(ETH_P_8021Q);
3937 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3938 }
3939#endif
3940 *hdr = (struct qeth_hdr *)
3941 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3942 if (hdr == NULL)
3943 return -EINVAL;
3944 return 0;
3945}
3946
3947static inline u8
3948qeth_get_qeth_hdr_flags4(int cast_type)
3949{
3950 if (cast_type == RTN_MULTICAST)
3951 return QETH_CAST_MULTICAST;
3952 if (cast_type == RTN_BROADCAST)
3953 return QETH_CAST_BROADCAST;
3954 return QETH_CAST_UNICAST;
3955}
3956
3957static inline u8
3958qeth_get_qeth_hdr_flags6(int cast_type)
3959{
3960 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3961 if (cast_type == RTN_MULTICAST)
3962 return ct | QETH_CAST_MULTICAST;
3963 if (cast_type == RTN_ANYCAST)
3964 return ct | QETH_CAST_ANYCAST;
3965 if (cast_type == RTN_BROADCAST)
3966 return ct | QETH_CAST_BROADCAST;
3967 return ct | QETH_CAST_UNICAST;
3968}
3969
3970static inline void
3971qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3972 struct sk_buff *skb)
3973{
3974 __u16 hdr_mac;
3975
3976 if (!memcmp(skb->data+QETH_HEADER_SIZE,
3977 skb->dev->broadcast,6)) { /* broadcast? */
3978 *(__u32 *)hdr->hdr.l2.flags |=
3979 QETH_LAYER2_FLAG_BROADCAST << 8;
3980 return;
3981 }
3982 hdr_mac=*((__u16*)skb->data);
3983 /* tr multicast? */
3984 switch (card->info.link_type) {
3985 case QETH_LINK_TYPE_HSTR:
3986 case QETH_LINK_TYPE_LANE_TR:
3987 if ((hdr_mac == QETH_TR_MAC_NC) ||
3988 (hdr_mac == QETH_TR_MAC_C) )
3989 *(__u32 *)hdr->hdr.l2.flags |=
3990 QETH_LAYER2_FLAG_MULTICAST << 8;
3991 else
3992 *(__u32 *)hdr->hdr.l2.flags |=
3993 QETH_LAYER2_FLAG_UNICAST << 8;
3994 break;
3995 /* eth or so multicast? */
3996 default:
3997 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3998 (hdr_mac==QETH_ETH_MAC_V6) )
3999 *(__u32 *)hdr->hdr.l2.flags |=
4000 QETH_LAYER2_FLAG_MULTICAST << 8;
4001 else
4002 *(__u32 *)hdr->hdr.l2.flags |=
4003 QETH_LAYER2_FLAG_UNICAST << 8;
4004 }
4005}
4006
4007static inline void
4008qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4009 struct sk_buff *skb, int cast_type)
4010{
4011 memset(hdr, 0, sizeof(struct qeth_hdr));
4012 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4013
4014 /* set byte 0 to "0x02" and byte 3 to casting flags */
4015 if (cast_type==RTN_MULTICAST)
4016 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4017 else if (cast_type==RTN_BROADCAST)
4018 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4019 else
4020 qeth_layer2_get_packet_type(card, hdr, skb);
4021
4022 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4023#ifdef CONFIG_QETH_VLAN
4024 /* VSWITCH relies on the VLAN
4025 * information to be present in
4026 * the QDIO header */
4027 if ((card->vlangrp != NULL) &&
4028 vlan_tx_tag_present(skb)) {
4029 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4030 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4031 }
4032#endif
4033}
4034
4035void
4036qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4037 struct sk_buff *skb, int ipv, int cast_type)
4038{
4039 QETH_DBF_TEXT(trace, 6, "fillhdr");
4040
4041 memset(hdr, 0, sizeof(struct qeth_hdr));
4042 if (card->options.layer2) {
4043 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4044 return;
4045 }
4046 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4047 hdr->hdr.l3.ext_flags = 0;
4048#ifdef CONFIG_QETH_VLAN
4049 /*
4050 * before we're going to overwrite this location with next hop ip.
4051 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4052 */
4053 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4054 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4055 QETH_HDR_EXT_VLAN_FRAME :
4056 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4057 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4058 }
4059#endif /* CONFIG_QETH_VLAN */
4060 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4061 if (ipv == 4) { /* IPv4 */
4062 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4063 memset(hdr->hdr.l3.dest_addr, 0, 12);
4064 if ((skb->dst) && (skb->dst->neighbour)) {
4065 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4066 *((u32 *) skb->dst->neighbour->primary_key);
4067 } else {
4068 /* fill in destination address used in ip header */
4069 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4070 }
4071 } else if (ipv == 6) { /* IPv6 or passthru */
4072 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4073 if ((skb->dst) && (skb->dst->neighbour)) {
4074 memcpy(hdr->hdr.l3.dest_addr,
4075 skb->dst->neighbour->primary_key, 16);
4076 } else {
4077 /* fill in destination address used in ip header */
4078 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4079 }
4080 } else { /* passthrough */
e23dd9cd 4081 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
9a455819
FP		 4082 !memcmp(skb->data + sizeof(struct qeth_hdr) +
4083 sizeof(__u16), skb->dev->broadcast, 6)) {
4084 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4085 QETH_HDR_PASSTHRU;
e23dd9cd 4086 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
1da177e4 4087 skb->dev->broadcast, 6)) { /* broadcast? */
e23dd9cd
FP		 4088 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4089 QETH_HDR_PASSTHRU;
1da177e4
LT		 4090 } else {
4091 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4092 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4093 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4094 }
4095 }
4096}
4097
1da177e4
LT		 4098static inline void
4099__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
05e08a2a 4100 int is_tso, int *next_element_to_fill)
1da177e4
LT		 4101{
4102 int length = skb->len;
4103 int length_here;
4104 int element;
4105 char *data;
05e08a2a 4106 int first_lap ;
1da177e4
LT		 4107
4108 element = *next_element_to_fill;
4109 data = skb->data;
05e08a2a
FP		 4110 first_lap = (is_tso == 0 ? 1 : 0);
4111
1da177e4
LT		 4112 while (length > 0) {
4113 /* length_here is the remaining amount of data in this page */
4114 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4115 if (length < length_here)
4116 length_here = length;
05e08a2a 4117
1da177e4
LT		 4118 buffer->element[element].addr = data;
4119 buffer->element[element].length = length_here;
4120 length -= length_here;
05e08a2a 4121 if (!length) {
1da177e4
LT		 4122 if (first_lap)
4123 buffer->element[element].flags = 0;
4124 else
4125 buffer->element[element].flags =
4126 SBAL_FLAGS_LAST_FRAG;
4127 } else {
4128 if (first_lap)
4129 buffer->element[element].flags =
4130 SBAL_FLAGS_FIRST_FRAG;
4131 else
4132 buffer->element[element].flags =
4133 SBAL_FLAGS_MIDDLE_FRAG;
4134 }
4135 data += length_here;
4136 element++;
4137 first_lap = 0;
4138 }
4139 *next_element_to_fill = element;
4140}
4141
4142static inline int
4143qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4144 struct qeth_qdio_out_buffer *buf,
4145 struct sk_buff *skb)
4146{
4147 struct qdio_buffer *buffer;
05e08a2a
FP		 4148 struct qeth_hdr_tso *hdr;
4149 int flush_cnt = 0, hdr_len, large_send = 0;
1da177e4
LT		 4150
4151 QETH_DBF_TEXT(trace, 6, "qdfillbf");
05e08a2a 4152
1da177e4
LT		 4153 buffer = buf->buffer;
4154 atomic_inc(&skb->users);
4155 skb_queue_tail(&buf->skb_list, skb);
05e08a2a
FP		 4156
4157 hdr = (struct qeth_hdr_tso *) skb->data;
4158 /*check first on TSO ....*/
4159 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4160 int element = buf->next_element_to_fill;
4161
4162 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4163 /*fill first buffer entry only with header information */
4164 buffer->element[element].addr = skb->data;
4165 buffer->element[element].length = hdr_len;
4166 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4167 buf->next_element_to_fill++;
4168 skb->data += hdr_len;
4169 skb->len -= hdr_len;
4170 large_send = 1;
4171 }
1da177e4 4172 if (skb_shinfo(skb)->nr_frags == 0)
05e08a2a 4173 __qeth_fill_buffer(skb, buffer, large_send,
1da177e4
LT		 4174 (int *)&buf->next_element_to_fill);
4175 else
05e08a2a 4176 __qeth_fill_buffer_frag(skb, buffer, large_send,
1da177e4
LT		 4177 (int *)&buf->next_element_to_fill);
4178
4179 if (!queue->do_pack) {
4180 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4181 /* set state to PRIMED -> will be flushed */
4182 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4183 flush_cnt = 1;
4184 } else {
4185 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4186#ifdef CONFIG_QETH_PERF_STATS
4187 queue->card->perf_stats.skbs_sent_pack++;
4188#endif
4189 if (buf->next_element_to_fill >=
4190 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4191 /*
4192 * packed buffer if full -> set state PRIMED
4193 * -> will be flushed
4194 */
4195 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4196 flush_cnt = 1;
4197 }
4198 }
4199 return flush_cnt;
4200}
4201
4202static inline int
4203qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4204 struct sk_buff *skb, struct qeth_hdr *hdr,
4205 int elements_needed,
4206 struct qeth_eddp_context *ctx)
4207{
4208 struct qeth_qdio_out_buffer *buffer;
4209 int buffers_needed = 0;
4210 int flush_cnt = 0;
4211 int index;
4212
4213 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4214
4215 /* spin until we get the queue ... */
4216 while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4217 QETH_OUT_Q_LOCKED,
4218 &queue->state));
4219 /* ... now we've got the queue */
4220 index = queue->next_buf_to_fill;
4221 buffer = &queue->bufs[queue->next_buf_to_fill];
4222 /*
4223 * check if buffer is empty to make sure that we do not 'overtake'
4224 * ourselves and try to fill a buffer that is already primed
4225 */
4226 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4227 card->stats.tx_dropped++;
4228 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4229 return -EBUSY;
4230 }
4231 if (ctx == NULL)
4232 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4233 QDIO_MAX_BUFFERS_PER_Q;
4234 else {
4235 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4236 if (buffers_needed < 0) {
4237 card->stats.tx_dropped++;
4238 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4239 return -EBUSY;
4240 }
4241 queue->next_buf_to_fill =
4242 (queue->next_buf_to_fill + buffers_needed) %
4243 QDIO_MAX_BUFFERS_PER_Q;
4244 }
4245 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4246 if (ctx == NULL) {
4247 qeth_fill_buffer(queue, buffer, skb);
4248 qeth_flush_buffers(queue, 0, index, 1);
4249 } else {
4250 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4251 WARN_ON(buffers_needed != flush_cnt);
4252 qeth_flush_buffers(queue, 0, index, flush_cnt);
4253 }
4254 return 0;
4255}
4256
4257static inline int
4258qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4259 struct sk_buff *skb, struct qeth_hdr *hdr,
4260 int elements_needed, struct qeth_eddp_context *ctx)
4261{
4262 struct qeth_qdio_out_buffer *buffer;
4263 int start_index;
4264 int flush_count = 0;
4265 int do_pack = 0;
4266 int tmp;
4267 int rc = 0;
4268
4269 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4270
4271 /* spin until we get the queue ... */
4272 while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4273 QETH_OUT_Q_LOCKED,
4274 &queue->state));
4275 start_index = queue->next_buf_to_fill;
4276 buffer = &queue->bufs[queue->next_buf_to_fill];
4277 /*
4278 * check if buffer is empty to make sure that we do not 'overtake'
4279 * ourselves and try to fill a buffer that is already primed
4280 */
4281 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4282 card->stats.tx_dropped++;
4283 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4284 return -EBUSY;
4285 }
4286 /* check if we need to switch packing state of this queue */
4287 qeth_switch_to_packing_if_needed(queue);
4288 if (queue->do_pack){
4289 do_pack = 1;
4290 if (ctx == NULL) {
4291 /* does packet fit in current buffer? */
4292 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4293 buffer->next_element_to_fill) < elements_needed){
4294 /* ... no -> set state PRIMED */
4295 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4296 flush_count++;
4297 queue->next_buf_to_fill =
4298 (queue->next_buf_to_fill + 1) %
4299 QDIO_MAX_BUFFERS_PER_Q;
4300 buffer = &queue->bufs[queue->next_buf_to_fill];
4301 /* we did a step forward, so check buffer state
4302 * again */
4303 if (atomic_read(&buffer->state) !=
4304 QETH_QDIO_BUF_EMPTY){
4305 card->stats.tx_dropped++;
4306 qeth_flush_buffers(queue, 0, start_index, flush_count);
4307 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4308 return -EBUSY;
4309 }
4310 }
4311 } else {
4312 /* check if we have enough elements (including following
4313 * free buffers) to handle eddp context */
4314 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4315 printk("eddp tx_dropped 1\n");
4316 card->stats.tx_dropped++;
4317 rc = -EBUSY;
4318 goto out;
4319 }
4320 }
4321 }
4322 if (ctx == NULL)
4323 tmp = qeth_fill_buffer(queue, buffer, skb);
4324 else {
4325 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4326 if (tmp < 0) {
4327 printk("eddp tx_dropped 2\n");
4328 card->stats.tx_dropped++;
4329 rc = - EBUSY;
4330 goto out;
4331 }
4332 }
4333 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4334 QDIO_MAX_BUFFERS_PER_Q;
4335 flush_count += tmp;
4336out:
4337 if (flush_count)
4338 qeth_flush_buffers(queue, 0, start_index, flush_count);
4339 /*
4340 * queue->state will go from LOCKED -> UNLOCKED or from
4341 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4342 * (switch packing state or flush buffer to get another pci flag out).
4343 * In that case we will enter this loop
4344 */
4345 while (atomic_dec_return(&queue->state)){
4346 flush_count = 0;
4347 start_index = queue->next_buf_to_fill;
4348 /* check if we can go back to non-packing state */
4349 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4350 /*
4351 * check if we need to flush a packing buffer to get a pci
4352 * flag out on the queue
4353 */
4354 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4355 flush_count += qeth_flush_buffers_on_no_pci(queue);
4356 if (flush_count)
4357 qeth_flush_buffers(queue, 0, start_index, flush_count);
4358 }
4359 /* at this point the queue is UNLOCKED again */
4360#ifdef CONFIG_QETH_PERF_STATS
4361 if (do_pack)
4362 queue->card->perf_stats.bufs_sent_pack += flush_count;
4363#endif /* CONFIG_QETH_PERF_STATS */
4364
4365 return rc;
4366}
4367
05e08a2a 4368static inline int
9cb90de8
FP		 4369qeth_get_elements_no(struct qeth_card *card, void *hdr,
4370 struct sk_buff *skb, int elems)
05e08a2a
FP		 4371{
4372 int elements_needed = 0;
4373
4374 if (skb_shinfo(skb)->nr_frags > 0) {
4375 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4376 }
4377 if (elements_needed == 0 )
4378 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4379 + skb->len) >> PAGE_SHIFT);
9cb90de8 4380 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
05e08a2a 4381 PRINT_ERR("qeth_do_send_packet: invalid size of "
9cb90de8
FP		 4382 "IP packet (Number=%d / Length=%d). Discarded.\n",
4383 (elements_needed+elems), skb->len);
05e08a2a
FP		 4384 return 0;
4385 }
4386 return elements_needed;
4387}
4388
1da177e4
LT		 4389static inline int
4390qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4391{
4392 int ipv = 0;
4393 int cast_type;
4394 struct qeth_qdio_out_q *queue;
f3d242e8 4395 struct qeth_hdr *hdr = NULL;
1da177e4
LT		 4396 int elements_needed = 0;
4397 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4398 struct qeth_eddp_context *ctx = NULL;
4399 int rc;
4400
4401 QETH_DBF_TEXT(trace, 6, "sendpkt");
4402
4403 if (!card->options.layer2) {
4404 ipv = qeth_get_ip_version(skb);
4405 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4406 if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4407 card->stats.tx_dropped++;
4408 dev_kfree_skb_irq(skb);
4409 return 0;
4410 }
e23dd9cd
FP		 4411 if(card->dev->type == ARPHRD_IEEE802_TR){
4412 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4413 } else {
4414 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4415 }
1da177e4
LT		 4416 }
4417 }
500f83ab
UB		 4418 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4419 (skb->protocol == htons(ETH_P_IPV6))) {
4420 dev_kfree_skb_any(skb);
4421 return 0;
4422 }
1da177e4 4423 cast_type = qeth_get_cast_type(card, skb);
500f83ab
UB		 4424 if ((cast_type == RTN_BROADCAST) &&
4425 (card->info.broadcast_capable == 0)){
1da177e4
LT		 4426 card->stats.tx_dropped++;
4427 card->stats.tx_errors++;
4428 dev_kfree_skb_any(skb);
4429 return NETDEV_TX_OK;
4430 }
4431 queue = card->qdio.out_qs
4432 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4433
4434 if (skb_shinfo(skb)->tso_size)
4435 large_send = card->options.large_send;
4436
1da177e4
LT		 4437 /*are we able to do TSO ? If so ,prepare and send it from here */
4438 if ((large_send == QETH_LARGE_SEND_TSO) &&
4439 (cast_type == RTN_UNSPEC)) {
05e08a2a
FP		 4440 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4441 if (rc) {
4442 card->stats.tx_dropped++;
4443 card->stats.tx_errors++;
4444 dev_kfree_skb_any(skb);
4445 return NETDEV_TX_OK;
4446 }
4447 elements_needed++;
4448 } else {
4449 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4450 QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4451 return rc;
4452 }
500f83ab
UB		 4453 if (card->info.type != QETH_CARD_TYPE_OSN)
4454 qeth_fill_header(card, hdr, skb, ipv, cast_type);
1da177e4
LT		 4455 }
4456
1da177e4
LT		 4457 if (large_send == QETH_LARGE_SEND_EDDP) {
4458 ctx = qeth_eddp_create_context(card, skb, hdr);
4459 if (ctx == NULL) {
4460 PRINT_WARN("could not create eddp context\n");
4461 return -EINVAL;
4462 }
4463 } else {
9cb90de8
FP		 4464 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4465 elements_needed);
4466 if (!elems)
1da177e4 4467 return -EINVAL;
9cb90de8 4468 elements_needed += elems;
1da177e4
LT		 4469 }
4470
4471 if (card->info.type != QETH_CARD_TYPE_IQD)
4472 rc = qeth_do_send_packet(card, queue, skb, hdr,
4473 elements_needed, ctx);
4474 else
4475 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4476 elements_needed, ctx);
1da177e4
LT		 4477 if (!rc){
4478 card->stats.tx_packets++;
4479 card->stats.tx_bytes += skb->len;
4480#ifdef CONFIG_QETH_PERF_STATS
05e08a2a
FP		 4481 if (skb_shinfo(skb)->tso_size &&
4482 !(large_send == QETH_LARGE_SEND_NO)) {
1da177e4
LT		 4483 card->perf_stats.large_send_bytes += skb->len;
4484 card->perf_stats.large_send_cnt++;
4485 }
4486 if (skb_shinfo(skb)->nr_frags > 0){
4487 card->perf_stats.sg_skbs_sent++;
4488 /* nr_frags + skb->data */
4489 card->perf_stats.sg_frags_sent +=
4490 skb_shinfo(skb)->nr_frags + 1;
4491 }
4492#endif /* CONFIG_QETH_PERF_STATS */
4493 }
4494 if (ctx != NULL) {
4495 /* drop creator's reference */
4496 qeth_eddp_put_context(ctx);
4497 /* free skb; it's not referenced by a buffer */
4498 if (rc == 0)
4499 dev_kfree_skb_any(skb);
4500
4501 }
4502 return rc;
4503}
4504
4505static int
4506qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4507{
4508 struct qeth_card *card = (struct qeth_card *) dev->priv;
4509 int rc = 0;
4510
4511 switch(regnum){
4512 case MII_BMCR: /* Basic mode control register */
4513 rc = BMCR_FULLDPLX;
4514 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
500f83ab 4515 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
1da177e4
LT		 4516 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4517 rc |= BMCR_SPEED100;
4518 break;
4519 case MII_BMSR: /* Basic mode status register */
4520 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4521 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4522 BMSR_100BASE4;
4523 break;
4524 case MII_PHYSID1: /* PHYS ID 1 */
4525 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4526 dev->dev_addr[2];
4527 rc = (rc >> 5) & 0xFFFF;
4528 break;
4529 case MII_PHYSID2: /* PHYS ID 2 */
4530 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4531 break;
4532 case MII_ADVERTISE: /* Advertisement control reg */
4533 rc = ADVERTISE_ALL;
4534 break;
4535 case MII_LPA: /* Link partner ability reg */
4536 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4537 LPA_100BASE4 | LPA_LPACK;
4538 break;
4539 case MII_EXPANSION: /* Expansion register */
4540 break;
4541 case MII_DCOUNTER: /* disconnect counter */
4542 break;
4543 case MII_FCSCOUNTER: /* false carrier counter */
4544 break;
4545 case MII_NWAYTEST: /* N-way auto-neg test register */
4546 break;
4547 case MII_RERRCOUNTER: /* rx error counter */
4548 rc = card->stats.rx_errors;
4549 break;
4550 case MII_SREVISION: /* silicon revision */
4551 break;
4552 case MII_RESV1: /* reserved 1 */
4553 break;
4554 case MII_LBRERROR: /* loopback, rx, bypass error */
4555 break;
4556 case MII_PHYADDR: /* physical address */
4557 break;
4558 case MII_RESV2: /* reserved 2 */
4559 break;
4560 case MII_TPISTATUS: /* TPI status for 10mbps */
4561 break;
4562 case MII_NCONFIG: /* network interface config */
4563 break;
4564 default:
4565 rc = 0;
4566 break;
4567 }
4568 return rc;
4569}
4570
4571static void
4572qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4573{
4574 switch(regnum){
4575 case MII_BMCR: /* Basic mode control register */
4576 case MII_BMSR: /* Basic mode status register */
4577 case MII_PHYSID1: /* PHYS ID 1 */
4578 case MII_PHYSID2: /* PHYS ID 2 */
4579 case MII_ADVERTISE: /* Advertisement control reg */
4580 case MII_LPA: /* Link partner ability reg */
4581 case MII_EXPANSION: /* Expansion register */
4582 case MII_DCOUNTER: /* disconnect counter */
4583 case MII_FCSCOUNTER: /* false carrier counter */
4584 case MII_NWAYTEST: /* N-way auto-neg test register */
4585 case MII_RERRCOUNTER: /* rx error counter */
4586 case MII_SREVISION: /* silicon revision */
4587 case MII_RESV1: /* reserved 1 */
4588 case MII_LBRERROR: /* loopback, rx, bypass error */
4589 case MII_PHYADDR: /* physical address */
4590 case MII_RESV2: /* reserved 2 */
4591 case MII_TPISTATUS: /* TPI status for 10mbps */
4592 case MII_NCONFIG: /* network interface config */
4593 default:
4594 break;
4595 }
4596}
4597
4598static inline const char *
4599qeth_arp_get_error_cause(int *rc)
4600{
4601 switch (*rc) {
4602 case QETH_IPA_ARP_RC_FAILED:
4603 *rc = -EIO;
4604 return "operation failed";
4605 case QETH_IPA_ARP_RC_NOTSUPP:
4606 *rc = -EOPNOTSUPP;
4607 return "operation not supported";
4608 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4609 *rc = -EINVAL;
4610 return "argument out of range";
4611 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4612 *rc = -EOPNOTSUPP;
4613 return "query operation not supported";
4614 case QETH_IPA_ARP_RC_Q_NO_DATA:
4615 *rc = -ENOENT;
4616 return "no query data available";
4617 default:
4618 return "unknown error";
4619 }
4620}
4621
4622static int
4623qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4624 __u16, long);
4625
4626static int
4627qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4628{
4629 int tmp;
4630 int rc;
4631
4632 QETH_DBF_TEXT(trace,3,"arpstnoe");
4633
f3d242e8
FP		 4634 /*
4635 * currently GuestLAN only supports the ARP assist function
4636 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4637 * thus we say EOPNOTSUPP for this ARP function
4638 */
1da177e4
LT		 4639 if (card->info.guestlan)
4640 return -EOPNOTSUPP;
4641 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4642 PRINT_WARN("ARP processing not supported "
4643 "on %s!\n", QETH_CARD_IFNAME(card));
4644 return -EOPNOTSUPP;
4645 }
4646 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4647 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4648 no_entries);
4649 if (rc) {
4650 tmp = rc;
4651 PRINT_WARN("Could not set number of ARP entries on %s: "
4652 "%s (0x%x/%d)\n",
4653 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4654 tmp, tmp);
4655 }
4656 return rc;
4657}
4658
4659static inline void
4660qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4661 struct qeth_arp_query_data *qdata,
4662 int entry_size, int uentry_size)
4663{
4664 char *entry_ptr;
4665 char *uentry_ptr;
4666 int i;
4667
4668 entry_ptr = (char *)&qdata->data;
4669 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4670 for (i = 0; i < qdata->no_entries; ++i){
4671 /* strip off 32 bytes "media specific information" */
4672 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4673 entry_ptr += entry_size;
4674 uentry_ptr += uentry_size;
4675 }
4676}
4677
4678static int
4679qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4680 unsigned long data)
4681{
4682 struct qeth_ipa_cmd *cmd;
4683 struct qeth_arp_query_data *qdata;
4684 struct qeth_arp_query_info *qinfo;
4685 int entry_size;
4686 int uentry_size;
4687 int i;
4688
4689 QETH_DBF_TEXT(trace,4,"arpquecb");
4690
4691 qinfo = (struct qeth_arp_query_info *) reply->param;
4692 cmd = (struct qeth_ipa_cmd *) data;
4693 if (cmd->hdr.return_code) {
4694 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4695 return 0;
4696 }
4697 if (cmd->data.setassparms.hdr.return_code) {
4698 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4699 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4700 return 0;
4701 }
4702 qdata = &cmd->data.setassparms.data.query_arp;
4703 switch(qdata->reply_bits){
4704 case 5:
4705 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4706 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4707 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4708 break;
4709 case 7:
4710 /* fall through to default */
4711 default:
4712 /* tr is the same as eth -> entry7 */
4713 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4714 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4715 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4716 break;
4717 }
4718 /* check if there is enough room in userspace */
4719 if ((qinfo->udata_len - qinfo->udata_offset) <
4720 qdata->no_entries * uentry_size){
4721 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4722 cmd->hdr.return_code = -ENOMEM;
4723 PRINT_WARN("query ARP user space buffer is too small for "
4724 "the returned number of ARP entries. "
4725 "Aborting query!\n");
4726 goto out_error;
4727 }
4728 QETH_DBF_TEXT_(trace, 4, "anore%i",
4729 cmd->data.setassparms.hdr.number_of_replies);
4730 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4731 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4732
4733 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4734 /* strip off "media specific information" */
4735 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4736 uentry_size);
4737 } else
4738 /*copy entries to user buffer*/
4739 memcpy(qinfo->udata + qinfo->udata_offset,
4740 (char *)&qdata->data, qdata->no_entries*uentry_size);
4741
4742 qinfo->no_entries += qdata->no_entries;
4743 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4744 /* check if all replies received ... */
4745 if (cmd->data.setassparms.hdr.seq_no <
4746 cmd->data.setassparms.hdr.number_of_replies)
4747 return 1;
4748 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4749 /* keep STRIP_ENTRIES flag so the user program can distinguish
4750 * stripped entries from normal ones */
4751 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4752 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4753 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4754 return 0;
4755out_error:
4756 i = 0;
4757 memcpy(qinfo->udata, &i, 4);
4758 return 0;
4759}
4760
4761static int
4762qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4763 int len, int (*reply_cb)(struct qeth_card *,
4764 struct qeth_reply *,
4765 unsigned long),
4766 void *reply_param)
4767{
4768 QETH_DBF_TEXT(trace,4,"sendarp");
4769
4770 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4771 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4772 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4773 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4774 reply_cb, reply_param);
4775}
4776
4777static int
4778qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4779 int len, int (*reply_cb)(struct qeth_card *,
4780 struct qeth_reply *,
4781 unsigned long),
4782 void *reply_param)
4783{
4784 u16 s1, s2;
4785
4786 QETH_DBF_TEXT(trace,4,"sendsnmp");
4787
4788 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4789 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4790 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4791 /* adjust PDU length fields in IPA_PDU_HEADER */
4792 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4793 s2 = (u32) len;
4794 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4795 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4796 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4797 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4798 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4799 reply_cb, reply_param);
4800}
4801
4802static struct qeth_cmd_buffer *
4803qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4804 __u16, __u16, enum qeth_prot_versions);
4805static int
4806qeth_arp_query(struct qeth_card *card, char *udata)
4807{
4808 struct qeth_cmd_buffer *iob;
4809 struct qeth_arp_query_info qinfo = {0, };
4810 int tmp;
4811 int rc;
4812
4813 QETH_DBF_TEXT(trace,3,"arpquery");
4814
1da177e4
LT		 4815 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4816 IPA_ARP_PROCESSING)) {
4817 PRINT_WARN("ARP processing not supported "
4818 "on %s!\n", QETH_CARD_IFNAME(card));
4819 return -EOPNOTSUPP;
4820 }
4821 /* get size of userspace buffer and mask_bits -> 6 bytes */
4822 if (copy_from_user(&qinfo, udata, 6))
4823 return -EFAULT;
4824 if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4825 return -ENOMEM;
4826 memset(qinfo.udata, 0, qinfo.udata_len);
4827 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4828 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4829 IPA_CMD_ASS_ARP_QUERY_INFO,
4830 sizeof(int),QETH_PROT_IPV4);
4831
4832 rc = qeth_send_ipa_arp_cmd(card, iob,
4833 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4834 qeth_arp_query_cb, (void *)&qinfo);
4835 if (rc) {
4836 tmp = rc;
4837 PRINT_WARN("Error while querying ARP cache on %s: %s "
4838 "(0x%x/%d)\n",
4839 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4840 tmp, tmp);
4841 copy_to_user(udata, qinfo.udata, 4);
4842 } else {
4843 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4844 }
4845 kfree(qinfo.udata);
4846 return rc;
4847}
4848
4849/**
4850 * SNMP command callback
4851 */
4852static int
4853qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4854 unsigned long sdata)
4855{
4856 struct qeth_ipa_cmd *cmd;
4857 struct qeth_arp_query_info *qinfo;
4858 struct qeth_snmp_cmd *snmp;
4859 unsigned char *data;
4860 __u16 data_len;
4861
4862 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4863
4864 cmd = (struct qeth_ipa_cmd *) sdata;
4865 data = (unsigned char *)((char *)cmd - reply->offset);
4866 qinfo = (struct qeth_arp_query_info *) reply->param;
4867 snmp = &cmd->data.setadapterparms.data.snmp;
4868
4869 if (cmd->hdr.return_code) {
4870 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4871 return 0;
4872 }
4873 if (cmd->data.setadapterparms.hdr.return_code) {
4874 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4875 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4876 return 0;
4877 }
4878 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4879 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4880 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4881 else
4882 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4883
4884 /* check if there is enough room in userspace */
4885 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4886 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4887 cmd->hdr.return_code = -ENOMEM;
4888 return 0;
4889 }
4890 QETH_DBF_TEXT_(trace, 4, "snore%i",
4891 cmd->data.setadapterparms.hdr.used_total);
4892 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4893 /*copy entries to user buffer*/
4894 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4895 memcpy(qinfo->udata + qinfo->udata_offset,
4896 (char *)snmp,
4897 data_len + offsetof(struct qeth_snmp_cmd,data));
4898 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4899 } else {
4900 memcpy(qinfo->udata + qinfo->udata_offset,
4901 (char *)&snmp->request, data_len);
4902 }
4903 qinfo->udata_offset += data_len;
4904 /* check if all replies received ... */
4905 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4906 cmd->data.setadapterparms.hdr.used_total);
4907 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4908 cmd->data.setadapterparms.hdr.seq_no);
4909 if (cmd->data.setadapterparms.hdr.seq_no <
4910 cmd->data.setadapterparms.hdr.used_total)
4911 return 1;
4912 return 0;
4913}
4914
4915static struct qeth_cmd_buffer *
4916qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4917 enum qeth_prot_versions );
4918
4919static struct qeth_cmd_buffer *
4920qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4921{
4922 struct qeth_cmd_buffer *iob;
4923 struct qeth_ipa_cmd *cmd;
4924
4925 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4926 QETH_PROT_IPV4);
4927 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4928 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4929 cmd->data.setadapterparms.hdr.command_code = command;
4930 cmd->data.setadapterparms.hdr.used_total = 1;
4931 cmd->data.setadapterparms.hdr.seq_no = 1;
4932
4933 return iob;
4934}
4935
4936/**
4937 * function to send SNMP commands to OSA-E card
4938 */
4939static int
4940qeth_snmp_command(struct qeth_card *card, char *udata)
4941{
4942 struct qeth_cmd_buffer *iob;
4943 struct qeth_ipa_cmd *cmd;
4944 struct qeth_snmp_ureq *ureq;
4945 int req_len;
4946 struct qeth_arp_query_info qinfo = {0, };
4947 int rc = 0;
4948
4949 QETH_DBF_TEXT(trace,3,"snmpcmd");
4950
4951 if (card->info.guestlan)
4952 return -EOPNOTSUPP;
4953
4954 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4955 (!card->options.layer2) ) {
4956 PRINT_WARN("SNMP Query MIBS not supported "
4957 "on %s!\n", QETH_CARD_IFNAME(card));
4958 return -EOPNOTSUPP;
4959 }
4960 /* skip 4 bytes (data_len struct member) to get req_len */
4961 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4962 return -EFAULT;
4963 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4964 if (!ureq) {
4965 QETH_DBF_TEXT(trace, 2, "snmpnome");
4966 return -ENOMEM;
4967 }
4968 if (copy_from_user(ureq, udata,
4969 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4970 kfree(ureq);
4971 return -EFAULT;
4972 }
4973 qinfo.udata_len = ureq->hdr.data_len;
4974 if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4975 kfree(ureq);
4976 return -ENOMEM;
4977 }
4978 memset(qinfo.udata, 0, qinfo.udata_len);
4979 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4980
4981 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4982 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4983 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4984 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4985 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4986 qeth_snmp_command_cb, (void *)&qinfo);
4987 if (rc)
4988 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4989 QETH_CARD_IFNAME(card), rc);
4990 else
4991 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4992
4993 kfree(ureq);
4994 kfree(qinfo.udata);
4995 return rc;
4996}
4997
4998static int
4999qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5000 unsigned long);
5001
5002static int
5003qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5004 __u16, long,
5005 int (*reply_cb)
5006 (struct qeth_card *, struct qeth_reply *, unsigned long),
5007 void *reply_param);
5008
5009static int
5010qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5011{
5012 struct qeth_cmd_buffer *iob;
5013 char buf[16];
5014 int tmp;
5015 int rc;
5016
5017 QETH_DBF_TEXT(trace,3,"arpadent");
5018
5019 /*
f3d242e8
FP		 5020 * currently GuestLAN only supports the ARP assist function
5021 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5022 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5023 */
5024 if (card->info.guestlan)
5025 return -EOPNOTSUPP;
5026 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5027 PRINT_WARN("ARP processing not supported "
5028 "on %s!\n", QETH_CARD_IFNAME(card));
5029 return -EOPNOTSUPP;
5030 }
5031
5032 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5033 IPA_CMD_ASS_ARP_ADD_ENTRY,
5034 sizeof(struct qeth_arp_cache_entry),
5035 QETH_PROT_IPV4);
5036 rc = qeth_send_setassparms(card, iob,
5037 sizeof(struct qeth_arp_cache_entry),
5038 (unsigned long) entry,
5039 qeth_default_setassparms_cb, NULL);
5040 if (rc) {
5041 tmp = rc;
5042 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5043 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5044 "%s (0x%x/%d)\n",
5045 buf, QETH_CARD_IFNAME(card),
5046 qeth_arp_get_error_cause(&rc), tmp, tmp);
5047 }
5048 return rc;
5049}
5050
5051static int
5052qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5053{
5054 struct qeth_cmd_buffer *iob;
5055 char buf[16] = {0, };
5056 int tmp;
5057 int rc;
5058
5059 QETH_DBF_TEXT(trace,3,"arprment");
5060
5061 /*
f3d242e8
FP		 5062 * currently GuestLAN only supports the ARP assist function
5063 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5064 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5065 */
5066 if (card->info.guestlan)
5067 return -EOPNOTSUPP;
5068 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5069 PRINT_WARN("ARP processing not supported "
5070 "on %s!\n", QETH_CARD_IFNAME(card));
5071 return -EOPNOTSUPP;
5072 }
5073 memcpy(buf, entry, 12);
5074 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5075 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5076 12,
5077 QETH_PROT_IPV4);
5078 rc = qeth_send_setassparms(card, iob,
5079 12, (unsigned long)buf,
5080 qeth_default_setassparms_cb, NULL);
5081 if (rc) {
5082 tmp = rc;
5083 memset(buf, 0, 16);
5084 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5085 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5086 "%s (0x%x/%d)\n",
5087 buf, QETH_CARD_IFNAME(card),
5088 qeth_arp_get_error_cause(&rc), tmp, tmp);
5089 }
5090 return rc;
5091}
5092
5093static int
5094qeth_arp_flush_cache(struct qeth_card *card)
5095{
5096 int rc;
5097 int tmp;
5098
5099 QETH_DBF_TEXT(trace,3,"arpflush");
5100
5101 /*
f3d242e8
FP		 5102 * currently GuestLAN only supports the ARP assist function
5103 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5104 * thus we say EOPNOTSUPP for this ARP function
5105 */
1da177e4
LT		 5106 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5107 return -EOPNOTSUPP;
5108 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5109 PRINT_WARN("ARP processing not supported "
5110 "on %s!\n", QETH_CARD_IFNAME(card));
5111 return -EOPNOTSUPP;
5112 }
5113 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5114 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5115 if (rc){
5116 tmp = rc;
5117 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5118 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5119 tmp, tmp);
5120 }
5121 return rc;
5122}
5123
5124static int
5125qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5126{
5127 struct qeth_card *card = (struct qeth_card *)dev->priv;
5128 struct qeth_arp_cache_entry arp_entry;
5129 struct mii_ioctl_data *mii_data;
5130 int rc = 0;
5131
5132 if (!card)
5133 return -ENODEV;
5134
5135 if ((card->state != CARD_STATE_UP) &&
5136 (card->state != CARD_STATE_SOFTSETUP))
5137 return -ENODEV;
5138
500f83ab
UB		 5139 if (card->info.type == QETH_CARD_TYPE_OSN)
5140 return -EPERM;
5141
1da177e4
LT		 5142 switch (cmd){
5143 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5144 if ( !capable(CAP_NET_ADMIN) ||
5145 (card->options.layer2) ) {
5146 rc = -EPERM;
5147 break;
5148 }
5149 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5150 break;
5151 case SIOC_QETH_ARP_QUERY_INFO:
5152 if ( !capable(CAP_NET_ADMIN) ||
5153 (card->options.layer2) ) {
5154 rc = -EPERM;
5155 break;
5156 }
5157 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5158 break;
5159 case SIOC_QETH_ARP_ADD_ENTRY:
5160 if ( !capable(CAP_NET_ADMIN) ||
5161 (card->options.layer2) ) {
5162 rc = -EPERM;
5163 break;
5164 }
5165 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5166 sizeof(struct qeth_arp_cache_entry)))
5167 rc = -EFAULT;
5168 else
5169 rc = qeth_arp_add_entry(card, &arp_entry);
5170 break;
5171 case SIOC_QETH_ARP_REMOVE_ENTRY:
5172 if ( !capable(CAP_NET_ADMIN) ||
5173 (card->options.layer2) ) {
5174 rc = -EPERM;
5175 break;
5176 }
5177 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5178 sizeof(struct qeth_arp_cache_entry)))
5179 rc = -EFAULT;
5180 else
5181 rc = qeth_arp_remove_entry(card, &arp_entry);
5182 break;
5183 case SIOC_QETH_ARP_FLUSH_CACHE:
5184 if ( !capable(CAP_NET_ADMIN) ||
5185 (card->options.layer2) ) {
5186 rc = -EPERM;
5187 break;
5188 }
5189 rc = qeth_arp_flush_cache(card);
5190 break;
5191 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5192 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5193 break;
5194 case SIOC_QETH_GET_CARD_TYPE:
5195 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5196 !card->info.guestlan)
5197 return 1;
5198 return 0;
5199 break;
5200 case SIOCGMIIPHY:
5201 mii_data = if_mii(rq);
5202 mii_data->phy_id = 0;
5203 break;
5204 case SIOCGMIIREG:
5205 mii_data = if_mii(rq);
5206 if (mii_data->phy_id != 0)
5207 rc = -EINVAL;
5208 else
5209 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5210 mii_data->reg_num);
5211 break;
5212 case SIOCSMIIREG:
5213 rc = -EOPNOTSUPP;
5214 break;
5215 /* TODO: remove return if qeth_mdio_write does something */
5216 if (!capable(CAP_NET_ADMIN)){
5217 rc = -EPERM;
5218 break;
5219 }
5220 mii_data = if_mii(rq);
5221 if (mii_data->phy_id != 0)
5222 rc = -EINVAL;
5223 else
5224 qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5225 mii_data->val_in);
5226 break;
5227 default:
5228 rc = -EOPNOTSUPP;
5229 }
5230 if (rc)
5231 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5232 return rc;
5233}
5234
5235static struct net_device_stats *
5236qeth_get_stats(struct net_device *dev)
5237{
5238 struct qeth_card *card;
5239
5240 card = (struct qeth_card *) (dev->priv);
5241
5242 QETH_DBF_TEXT(trace,5,"getstat");
5243
5244 return &card->stats;
5245}
5246
5247static int
5248qeth_change_mtu(struct net_device *dev, int new_mtu)
5249{
5250 struct qeth_card *card;
5251 char dbf_text[15];
5252
5253 card = (struct qeth_card *) (dev->priv);
5254
5255 QETH_DBF_TEXT(trace,4,"chgmtu");
5256 sprintf(dbf_text, "%8x", new_mtu);
5257 QETH_DBF_TEXT(trace,4,dbf_text);
5258
5259 if (new_mtu < 64)
5260 return -EINVAL;
5261 if (new_mtu > 65535)
5262 return -EINVAL;
5263 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5264 (!qeth_mtu_is_valid(card, new_mtu)))
5265 return -EINVAL;
5266 dev->mtu = new_mtu;
5267 return 0;
5268}
5269
5270#ifdef CONFIG_QETH_VLAN
5271static void
5272qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5273{
5274 struct qeth_card *card;
5275 unsigned long flags;
5276
5277 QETH_DBF_TEXT(trace,4,"vlanreg");
5278
5279 card = (struct qeth_card *) dev->priv;
5280 spin_lock_irqsave(&card->vlanlock, flags);
5281 card->vlangrp = grp;
5282 spin_unlock_irqrestore(&card->vlanlock, flags);
5283}
5284
5285static inline void
5286qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5287 unsigned short vid)
5288{
5289 int i;
5290 struct sk_buff *skb;
5291 struct sk_buff_head tmp_list;
5292
5293 skb_queue_head_init(&tmp_list);
5294 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5295 while ((skb = skb_dequeue(&buf->skb_list))){
5296 if (vlan_tx_tag_present(skb) &&
5297 (vlan_tx_tag_get(skb) == vid)) {
5298 atomic_dec(&skb->users);
5299 dev_kfree_skb(skb);
5300 } else
5301 skb_queue_tail(&tmp_list, skb);
5302 }
5303 }
5304 while ((skb = skb_dequeue(&tmp_list)))
5305 skb_queue_tail(&buf->skb_list, skb);
5306}
5307
5308static void
5309qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5310{
5311 int i, j;
5312
5313 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5314 for (i = 0; i < card->qdio.no_out_queues; ++i){
5315 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5316 qeth_free_vlan_buffer(card, &card->qdio.
5317 out_qs[i]->bufs[j], vid);
5318 }
5319}
5320
5321static void
5322qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5323{
5324 struct in_device *in_dev;
5325 struct in_ifaddr *ifa;
5326 struct qeth_ipaddr *addr;
5327
5328 QETH_DBF_TEXT(trace, 4, "frvaddr4");
6c88ad2d 5329
1da177e4 5330 rcu_read_lock();
e5ed6399 5331 in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
1da177e4
LT		 5332 if (!in_dev)
5333 goto out;
5334 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5335 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5336 if (addr){
5337 addr->u.a4.addr = ifa->ifa_address;
5338 addr->u.a4.mask = ifa->ifa_mask;
5339 addr->type = QETH_IP_TYPE_NORMAL;
5340 if (!qeth_delete_ip(card, addr))
5341 kfree(addr);
5342 }
5343 }
5344out:
5345 rcu_read_unlock();
5346}
5347
5348static void
5349qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5350{
5351#ifdef CONFIG_QETH_IPV6
5352 struct inet6_dev *in6_dev;
5353 struct inet6_ifaddr *ifa;
5354 struct qeth_ipaddr *addr;
5355
5356 QETH_DBF_TEXT(trace, 4, "frvaddr6");
6c88ad2d 5357
1da177e4
LT		 5358 in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5359 if (!in6_dev)
5360 return;
5361 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5362 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5363 if (addr){
5364 memcpy(&addr->u.a6.addr, &ifa->addr,
5365 sizeof(struct in6_addr));
5366 addr->u.a6.pfxlen = ifa->prefix_len;
5367 addr->type = QETH_IP_TYPE_NORMAL;
5368 if (!qeth_delete_ip(card, addr))
5369 kfree(addr);
5370 }
5371 }
5372 in6_dev_put(in6_dev);
5373#endif /* CONFIG_QETH_IPV6 */
5374}
5375
6c88ad2d
FP		 5376static void
5377qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5378{
5379 if (card->options.layer2 || !card->vlangrp)
5380 return;
5381 qeth_free_vlan_addresses4(card, vid);
5382 qeth_free_vlan_addresses6(card, vid);
5383}
5384
508cc2b0
FP		 5385static int
5386qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5387 struct qeth_reply *reply,
5388 unsigned long data)
5389{
5390 struct qeth_ipa_cmd *cmd;
5391
5392 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5393 cmd = (struct qeth_ipa_cmd *) data;
5394 if (cmd->hdr.return_code) {
5395 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5396 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5397 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5398 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5399 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5400 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5401 }
5402 return 0;
5403}
5404
5405static int
1da177e4
LT		 5406qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5407 enum qeth_ipa_cmds ipacmd)
5408{
1da177e4
LT		 5409 struct qeth_ipa_cmd *cmd;
5410 struct qeth_cmd_buffer *iob;
5411
5412 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5413 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5414 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5415 cmd->data.setdelvlan.vlan_id = i;
508cc2b0
FP		 5416 return qeth_send_ipa_cmd(card, iob,
5417 qeth_layer2_send_setdelvlan_cb, NULL);
1da177e4
LT		 5418}
5419
5420static void
5421qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5422{
5423 unsigned short i;
5424
5425 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5426
5427 if (!card->vlangrp)
5428 return;
5429 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5430 if (card->vlangrp->vlan_devices[i] == NULL)
5431 continue;
5432 if (clear)
5433 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5434 else
5435 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5436 }
5437}
5438
5439/*add_vid is layer 2 used only ....*/
5440static void
5441qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5442{
5443 struct qeth_card *card;
5444
5445 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5446
5447 card = (struct qeth_card *) dev->priv;
5448 if (!card->options.layer2)
5449 return;
5450 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5451}
5452
5453/*... kill_vid used for both modes*/
5454static void
5455qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5456{
5457 struct qeth_card *card;
5458 unsigned long flags;
5459
5460 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5461
5462 card = (struct qeth_card *) dev->priv;
5463 /* free all skbs for the vlan device */
5464 qeth_free_vlan_skbs(card, vid);
5465 spin_lock_irqsave(&card->vlanlock, flags);
5466 /* unregister IP addresses of vlan device */
6c88ad2d 5467 qeth_free_vlan_addresses(card, vid);
1da177e4
LT		 5468 if (card->vlangrp)
5469 card->vlangrp->vlan_devices[vid] = NULL;
5470 spin_unlock_irqrestore(&card->vlanlock, flags);
5471 if (card->options.layer2)
5472 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5473 qeth_set_multicast_list(card->dev);
5474}
5475#endif
5476
5477/**
5478 * set multicast address on card
5479 */
5480static void
5481qeth_set_multicast_list(struct net_device *dev)
5482{
5483 struct qeth_card *card = (struct qeth_card *) dev->priv;
5484
500f83ab
UB		 5485 if (card->info.type == QETH_CARD_TYPE_OSN)
5486 return ;
5487
1da177e4
LT		 5488 QETH_DBF_TEXT(trace,3,"setmulti");
5489 qeth_delete_mc_addresses(card);
6c88ad2d
FP		 5490 if (card->options.layer2) {
5491 qeth_layer2_add_multicast(card);
5492 goto out;
5493 }
1da177e4
LT		 5494 qeth_add_multicast_ipv4(card);
5495#ifdef CONFIG_QETH_IPV6
5496 qeth_add_multicast_ipv6(card);
5497#endif
6c88ad2d 5498out:
1da177e4
LT		 5499 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5500 schedule_work(&card->kernel_thread_starter);
5501}
5502
5503static int
5504qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5505{
5506 return 0;
5507}
5508
5509static void
5510qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5511{
5512 if (dev->type == ARPHRD_IEEE802_TR)
5513 ip_tr_mc_map(ipm, mac);
5514 else
5515 ip_eth_mc_map(ipm, mac);
5516}
5517
5518static struct qeth_ipaddr *
5519qeth_get_addr_buffer(enum qeth_prot_versions prot)
5520{
5521 struct qeth_ipaddr *addr;
5522
5523 addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5524 if (addr == NULL) {
5525 PRINT_WARN("Not enough memory to add address\n");
5526 return NULL;
5527 }
5528 memset(addr,0,sizeof(struct qeth_ipaddr));
5529 addr->type = QETH_IP_TYPE_NORMAL;
5530 addr->proto = prot;
5531 return addr;
5532}
5533
500f83ab
UB		 5534int
5535qeth_osn_assist(struct net_device *dev,
5536 void *data,
5537 int data_len)
5538{
5539 struct qeth_cmd_buffer *iob;
5540 struct qeth_card *card;
5541 int rc;
5542
5543 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5544 if (!dev)
5545 return -ENODEV;
5546 card = (struct qeth_card *)dev->priv;
5547 if (!card)
5548 return -ENODEV;
5549 if ((card->state != CARD_STATE_UP) &&
5550 (card->state != CARD_STATE_SOFTSETUP))
5551 return -ENODEV;
5552 iob = qeth_wait_for_buffer(&card->write);
5553 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5554 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5555 return rc;
5556}
5557
5558static struct net_device *
5559qeth_netdev_by_devno(unsigned char *read_dev_no)
5560{
5561 struct qeth_card *card;
5562 struct net_device *ndev;
5563 unsigned char *readno;
5564 __u16 temp_dev_no, card_dev_no;
5565 char *endp;
5566 unsigned long flags;
5567
5568 ndev = NULL;
5569 memcpy(&temp_dev_no, read_dev_no, 2);
5570 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5571 list_for_each_entry(card, &qeth_card_list.list, list) {
5572 readno = CARD_RDEV_ID(card);
5573 readno += (strlen(readno) - 4);
5574 card_dev_no = simple_strtoul(readno, &endp, 16);
5575 if (card_dev_no == temp_dev_no) {
5576 ndev = card->dev;
5577 break;
5578 }
5579 }
5580 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5581 return ndev;
5582}
5583
5584int
5585qeth_osn_register(unsigned char *read_dev_no,
5586 struct net_device **dev,
5587 int (*assist_cb)(struct net_device *, void *),
5588 int (*data_cb)(struct sk_buff *))
5589{
5590 struct qeth_card * card;
5591
5592 QETH_DBF_TEXT(trace, 2, "osnreg");
5593 *dev = qeth_netdev_by_devno(read_dev_no);
5594 if (*dev == NULL)
5595 return -ENODEV;
5596 card = (struct qeth_card *)(*dev)->priv;
5597 if (!card)
5598 return -ENODEV;
5599 if ((assist_cb == NULL) || (data_cb == NULL))
5600 return -EINVAL;
5601 card->osn_info.assist_cb = assist_cb;
5602 card->osn_info.data_cb = data_cb;
5603 return 0;
5604}
5605
5606void
5607qeth_osn_deregister(struct net_device * dev)
5608{
5609 struct qeth_card *card;
5610
5611 QETH_DBF_TEXT(trace, 2, "osndereg");
5612 if (!dev)
5613 return;
5614 card = (struct qeth_card *)dev->priv;
5615 if (!card)
5616 return;
5617 card->osn_info.assist_cb = NULL;
5618 card->osn_info.data_cb = NULL;
5619 return;
5620}
5621
1da177e4
LT		 5622static void
5623qeth_delete_mc_addresses(struct qeth_card *card)
5624{
5625 struct qeth_ipaddr *iptodo;
5626 unsigned long flags;
5627
5628 QETH_DBF_TEXT(trace,4,"delmc");
5629 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5630 if (!iptodo) {
5631 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5632 return;
5633 }
5634 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5635 spin_lock_irqsave(&card->ip_lock, flags);
5636 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5637 kfree(iptodo);
5638 spin_unlock_irqrestore(&card->ip_lock, flags);
5639}
5640
5641static inline void
5642qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5643{
5644 struct qeth_ipaddr *ipm;
5645 struct ip_mc_list *im4;
5646 char buf[MAX_ADDR_LEN];
5647
5648 QETH_DBF_TEXT(trace,4,"addmc");
5649 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5650 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5651 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5652 if (!ipm)
5653 continue;
5654 ipm->u.a4.addr = im4->multiaddr;
5655 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5656 ipm->is_multicast = 1;
5657 if (!qeth_add_ip(card,ipm))
5658 kfree(ipm);
5659 }
5660}
5661
5662static inline void
5663qeth_add_vlan_mc(struct qeth_card *card)
5664{
5665#ifdef CONFIG_QETH_VLAN
5666 struct in_device *in_dev;
5667 struct vlan_group *vg;
5668 int i;
5669
5670 QETH_DBF_TEXT(trace,4,"addmcvl");
5671 if ( ((card->options.layer2 == 0) &&
5672 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5673 (card->vlangrp == NULL) )
5674 return ;
5675
5676 vg = card->vlangrp;
5677 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5678 if (vg->vlan_devices[i] == NULL ||
5679 !(vg->vlan_devices[i]->flags & IFF_UP))
5680 continue;
5681 in_dev = in_dev_get(vg->vlan_devices[i]);
5682 if (!in_dev)
5683 continue;
5684 read_lock(&in_dev->mc_list_lock);
5685 qeth_add_mc(card,in_dev);
5686 read_unlock(&in_dev->mc_list_lock);
5687 in_dev_put(in_dev);
5688 }
5689#endif
5690}
5691
5692static void
5693qeth_add_multicast_ipv4(struct qeth_card *card)
5694{
5695 struct in_device *in4_dev;
5696
5697 QETH_DBF_TEXT(trace,4,"chkmcv4");
5698 in4_dev = in_dev_get(card->dev);
5699 if (in4_dev == NULL)
5700 return;
5701 read_lock(&in4_dev->mc_list_lock);
5702 qeth_add_mc(card, in4_dev);
5703 qeth_add_vlan_mc(card);
5704 read_unlock(&in4_dev->mc_list_lock);
5705 in_dev_put(in4_dev);
5706}
5707
6c88ad2d
FP		 5708static void
5709qeth_layer2_add_multicast(struct qeth_card *card)
5710{
5711 struct qeth_ipaddr *ipm;
5712 struct dev_mc_list *dm;
5713
5714 QETH_DBF_TEXT(trace,4,"L2addmc");
5715 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5716 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5717 if (!ipm)
5718 continue;
5719 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5720 ipm->is_multicast = 1;
5721 if (!qeth_add_ip(card, ipm))
5722 kfree(ipm);
5723 }
5724}
5725
1da177e4
LT		 5726#ifdef CONFIG_QETH_IPV6
5727static inline void
5728qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5729{
5730 struct qeth_ipaddr *ipm;
5731 struct ifmcaddr6 *im6;
5732 char buf[MAX_ADDR_LEN];
5733
5734 QETH_DBF_TEXT(trace,4,"addmc6");
5735 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5736 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5737 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5738 if (!ipm)
5739 continue;
5740 ipm->is_multicast = 1;
5741 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5742 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5743 sizeof(struct in6_addr));
5744 if (!qeth_add_ip(card,ipm))
5745 kfree(ipm);
5746 }
5747}
5748
5749static inline void
5750qeth_add_vlan_mc6(struct qeth_card *card)
5751{
5752#ifdef CONFIG_QETH_VLAN
5753 struct inet6_dev *in_dev;
5754 struct vlan_group *vg;
5755 int i;
5756
5757 QETH_DBF_TEXT(trace,4,"admc6vl");
5758 if ( ((card->options.layer2 == 0) &&
5759 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5760 (card->vlangrp == NULL))
5761 return ;
5762
5763 vg = card->vlangrp;
5764 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5765 if (vg->vlan_devices[i] == NULL ||
5766 !(vg->vlan_devices[i]->flags & IFF_UP))
5767 continue;
5768 in_dev = in6_dev_get(vg->vlan_devices[i]);
5769 if (!in_dev)
5770 continue;
5771 read_lock(&in_dev->lock);
5772 qeth_add_mc6(card,in_dev);
5773 read_unlock(&in_dev->lock);
5774 in6_dev_put(in_dev);
5775 }
5776#endif /* CONFIG_QETH_VLAN */
5777}
5778
5779static void
5780qeth_add_multicast_ipv6(struct qeth_card *card)
5781{
5782 struct inet6_dev *in6_dev;
5783
5784 QETH_DBF_TEXT(trace,4,"chkmcv6");
5785 if ((card->options.layer2 == 0) &&
5786 (!qeth_is_supported(card, IPA_IPV6)) )
5787 return ;
5788
5789 in6_dev = in6_dev_get(card->dev);
5790 if (in6_dev == NULL)
5791 return;
5792 read_lock(&in6_dev->lock);
5793 qeth_add_mc6(card, in6_dev);
5794 qeth_add_vlan_mc6(card);
5795 read_unlock(&in6_dev->lock);
5796 in6_dev_put(in6_dev);
5797}
5798#endif /* CONFIG_QETH_IPV6 */
5799
5800static int
5801qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5802 enum qeth_ipa_cmds ipacmd,
5803 int (*reply_cb) (struct qeth_card *,
5804 struct qeth_reply*,
5805 unsigned long))
5806{
5807 struct qeth_ipa_cmd *cmd;
5808 struct qeth_cmd_buffer *iob;
5809
5810 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5811 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5812 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5813 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5814 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5815 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5816}
5817
5818static int
5819qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5820 struct qeth_reply *reply,
5821 unsigned long data)
5822{
5823 struct qeth_ipa_cmd *cmd;
5824 __u8 *mac;
5825
5826 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5827 cmd = (struct qeth_ipa_cmd *) data;
5828 mac = &cmd->data.setdelmac.mac[0];
5829 /* MAC already registered, needed in couple/uncouple case */
5830 if (cmd->hdr.return_code == 0x2005) {
5831 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5832 "already existing on %s \n",
5833 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5834 QETH_CARD_IFNAME(card));
5835 cmd->hdr.return_code = 0;
5836 }
5837 if (cmd->hdr.return_code)
5838 PRINT_ERR("Could not set group MAC " \
5839 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5840 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5841 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5842 return 0;
5843}
5844
5845static int
5846qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5847{
5848 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5849 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5850 qeth_layer2_send_setgroupmac_cb);
5851}
5852
5853static int
5854qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5855 struct qeth_reply *reply,
5856 unsigned long data)
5857{
5858 struct qeth_ipa_cmd *cmd;
5859 __u8 *mac;
5860
5861 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5862 cmd = (struct qeth_ipa_cmd *) data;
5863 mac = &cmd->data.setdelmac.mac[0];
5864 if (cmd->hdr.return_code)
5865 PRINT_ERR("Could not delete group MAC " \
5866 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5867 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5868 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5869 return 0;
5870}
5871
5872static int
5873qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5874{
5875 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5876 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5877 qeth_layer2_send_delgroupmac_cb);
5878}
5879
5880static int
5881qeth_layer2_send_setmac_cb(struct qeth_card *card,
5882 struct qeth_reply *reply,
5883 unsigned long data)
5884{
5885 struct qeth_ipa_cmd *cmd;
5886
5887 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5888 cmd = (struct qeth_ipa_cmd *) data;
5889 if (cmd->hdr.return_code) {
5890 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5891 PRINT_WARN("Error in registering MAC address on " \
5892 "device %s: x%x\n", CARD_BUS_ID(card),
5893 cmd->hdr.return_code);
5894 card->info.layer2_mac_registered = 0;
5895 cmd->hdr.return_code = -EIO;
5896 } else {
5897 card->info.layer2_mac_registered = 1;
5898 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5899 OSA_ADDR_LEN);
5900 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5901 "successfully registered on device %s\n",
5902 card->dev->dev_addr[0], card->dev->dev_addr[1],
5903 card->dev->dev_addr[2], card->dev->dev_addr[3],
5904 card->dev->dev_addr[4], card->dev->dev_addr[5],
5905 card->dev->name);
5906 }
5907 return 0;
5908}
5909
5910static int
5911qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5912{
5913 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5914 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5915 qeth_layer2_send_setmac_cb);
5916}
5917
5918static int
5919qeth_layer2_send_delmac_cb(struct qeth_card *card,
5920 struct qeth_reply *reply,
5921 unsigned long data)
5922{
5923 struct qeth_ipa_cmd *cmd;
5924
5925 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5926 cmd = (struct qeth_ipa_cmd *) data;
5927 if (cmd->hdr.return_code) {
5928 PRINT_WARN("Error in deregistering MAC address on " \
5929 "device %s: x%x\n", CARD_BUS_ID(card),
5930 cmd->hdr.return_code);
5931 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5932 cmd->hdr.return_code = -EIO;
5933 return 0;
5934 }
5935 card->info.layer2_mac_registered = 0;
5936
5937 return 0;
5938}
5939static int
5940qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5941{
5942 QETH_DBF_TEXT(trace, 2, "L2Delmac");
5943 if (!card->info.layer2_mac_registered)
5944 return 0;
5945 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5946 qeth_layer2_send_delmac_cb);
5947}
5948
5949static int
5950qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5951{
5952 struct sockaddr *addr = p;
5953 struct qeth_card *card;
5954 int rc = 0;
5955
5956 QETH_DBF_TEXT(trace, 3, "setmac");
5957
5958 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5959 QETH_DBF_TEXT(trace, 3, "setmcINV");
5960 return -EOPNOTSUPP;
5961 }
5962 card = (struct qeth_card *) dev->priv;
5963
5964 if (!card->options.layer2) {
5965 PRINT_WARN("Setting MAC address on %s is not supported"
5966 "in Layer 3 mode.\n", dev->name);
5967 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5968 return -EOPNOTSUPP;
5969 }
500f83ab
UB		 5970 if (card->info.type == QETH_CARD_TYPE_OSN) {
5971 PRINT_WARN("Setting MAC address on %s is not supported.\n",
5972 dev->name);
5973 QETH_DBF_TEXT(trace, 3, "setmcOSN");
5974 return -EOPNOTSUPP;
5975 }
1da177e4
LT		 5976 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5977 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5978 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5979 if (!rc)
5980 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5981 return rc;
5982}
5983
5984static void
5985qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5986 __u8 command, enum qeth_prot_versions prot)
5987{
5988 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5989 cmd->hdr.command = command;
5990 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5991 cmd->hdr.seqno = card->seqno.ipa;
5992 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5993 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5994 if (card->options.layer2)
5995 cmd->hdr.prim_version_no = 2;
5996 else
5997 cmd->hdr.prim_version_no = 1;
5998 cmd->hdr.param_count = 1;
5999 cmd->hdr.prot_version = prot;
6000 cmd->hdr.ipa_supported = 0;
6001 cmd->hdr.ipa_enabled = 0;
6002}
6003
6004static struct qeth_cmd_buffer *
6005qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6006 enum qeth_prot_versions prot)
6007{
6008 struct qeth_cmd_buffer *iob;
6009 struct qeth_ipa_cmd *cmd;
6010
6011 iob = qeth_wait_for_buffer(&card->write);
6012 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6013 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6014
6015 return iob;
6016}
6017
6018static int
6019qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6020{
6021 int rc;
6022 struct qeth_cmd_buffer *iob;
6023 struct qeth_ipa_cmd *cmd;
6024
6025 QETH_DBF_TEXT(trace,4,"setdelmc");
6026
6027 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6028 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6029 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6030 if (addr->proto == QETH_PROT_IPV6)
6031 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6032 sizeof(struct in6_addr));
6033 else
6034 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6035
6036 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6037
6038 return rc;
6039}
6040static inline void
6041qeth_fill_netmask(u8 *netmask, unsigned int len)
6042{
6043 int i,j;
6044 for (i=0;i<16;i++) {
6045 j=(len)-(i*8);
6046 if (j >= 8)
6047 netmask[i] = 0xff;
6048 else if (j > 0)
6049 netmask[i] = (u8)(0xFF00>>j);
6050 else
6051 netmask[i] = 0;
6052 }
6053}
6054
6055static int
6056qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6057 int ipacmd, unsigned int flags)
6058{
6059 int rc;
6060 struct qeth_cmd_buffer *iob;
6061 struct qeth_ipa_cmd *cmd;
6062 __u8 netmask[16];
6063
6064 QETH_DBF_TEXT(trace,4,"setdelip");
6065 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6066
6067 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6068 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6069 if (addr->proto == QETH_PROT_IPV6) {
6070 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6071 sizeof(struct in6_addr));
6072 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6073 memcpy(cmd->data.setdelip6.mask, netmask,
6074 sizeof(struct in6_addr));
6075 cmd->data.setdelip6.flags = flags;
6076 } else {
6077 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6078 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6079 cmd->data.setdelip4.flags = flags;
6080 }
6081
6082 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6083
6084 return rc;
6085}
6086
6087static int
6088qeth_layer2_register_addr_entry(struct qeth_card *card,
6089 struct qeth_ipaddr *addr)
6090{
6091 if (!addr->is_multicast)
6092 return 0;
6093 QETH_DBF_TEXT(trace, 2, "setgmac");
6094 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6095 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6096}
6097
6098static int
6099qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6100 struct qeth_ipaddr *addr)
6101{
6102 if (!addr->is_multicast)
6103 return 0;
6104 QETH_DBF_TEXT(trace, 2, "delgmac");
6105 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6106 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6107}
6108
6109static int
6110qeth_layer3_register_addr_entry(struct qeth_card *card,
6111 struct qeth_ipaddr *addr)
6112{
6113 char buf[50];
6114 int rc;
6115 int cnt = 3;
6116
6117 if (addr->proto == QETH_PROT_IPV4) {
6118 QETH_DBF_TEXT(trace, 2,"setaddr4");
6119 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6120 } else if (addr->proto == QETH_PROT_IPV6) {
6121 QETH_DBF_TEXT(trace, 2, "setaddr6");
6122 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6123 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6124 } else {
6125 QETH_DBF_TEXT(trace, 2, "setaddr?");
6126 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6127 }
6128 do {
6129 if (addr->is_multicast)
6130 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6131 else
6132 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6133 addr->set_flags);
6134 if (rc)
6135 QETH_DBF_TEXT(trace, 2, "failed");
6136 } while ((--cnt > 0) && rc);
6137 if (rc){
6138 QETH_DBF_TEXT(trace, 2, "FAILED");
6139 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6140 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6141 buf, rc, rc);
6142 }
6143 return rc;
6144}
6145
6146static int
6147qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6148 struct qeth_ipaddr *addr)
6149{
6150 //char buf[50];
6151 int rc;
6152
6153 if (addr->proto == QETH_PROT_IPV4) {
6154 QETH_DBF_TEXT(trace, 2,"deladdr4");
6155 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6156 } else if (addr->proto == QETH_PROT_IPV6) {
6157 QETH_DBF_TEXT(trace, 2, "deladdr6");
6158 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6159 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6160 } else {
6161 QETH_DBF_TEXT(trace, 2, "deladdr?");
6162 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6163 }
6164 if (addr->is_multicast)
6165 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6166 else
6167 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6168 addr->del_flags);
6169 if (rc) {
6170 QETH_DBF_TEXT(trace, 2, "failed");
6171 /* TODO: re-activate this warning as soon as we have a
6172 * clean mirco code
6173 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6174 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6175 buf, rc);
6176 */
6177 }
6178 return rc;
6179}
6180
6181static int
6182qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6183{
6184 if (card->options.layer2)
6185 return qeth_layer2_register_addr_entry(card, addr);
6186
6187 return qeth_layer3_register_addr_entry(card, addr);
6188}
6189
6190static int
6191qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6192{
6193 if (card->options.layer2)
6194 return qeth_layer2_deregister_addr_entry(card, addr);
6195
6196 return qeth_layer3_deregister_addr_entry(card, addr);
6197}
6198
6199static u32
6200qeth_ethtool_get_tx_csum(struct net_device *dev)
6201{
6202 /* We may need to say that we support tx csum offload if
6203 * we do EDDP or TSO. There are discussions going on to
6204 * enforce rules in the stack and in ethtool that make
6205 * SG and TSO depend on HW_CSUM. At the moment there are
6206 * no such rules....
6207 * If we say yes here, we have to checksum outbound packets
6208 * any time. */
6209 return 0;
6210}
6211
6212static int
6213qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6214{
6215 return -EINVAL;
6216}
6217
6218static u32
6219qeth_ethtool_get_rx_csum(struct net_device *dev)
6220{
6221 struct qeth_card *card = (struct qeth_card *)dev->priv;
6222
6223 return (card->options.checksum_type == HW_CHECKSUMMING);
6224}
6225
6226static int
6227qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6228{
6229 struct qeth_card *card = (struct qeth_card *)dev->priv;
6230
6231 if ((card->state != CARD_STATE_DOWN) &&
6232 (card->state != CARD_STATE_RECOVER))
6233 return -EPERM;
6234 if (data)
6235 card->options.checksum_type = HW_CHECKSUMMING;
6236 else
6237 card->options.checksum_type = SW_CHECKSUMMING;
6238 return 0;
6239}
6240
6241static u32
6242qeth_ethtool_get_sg(struct net_device *dev)
6243{
6244 struct qeth_card *card = (struct qeth_card *)dev->priv;
6245
6246 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6247 (dev->features & NETIF_F_SG));
6248}
6249
6250static int
6251qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6252{
6253 struct qeth_card *card = (struct qeth_card *)dev->priv;
6254
6255 if (data) {
6256 if (card->options.large_send != QETH_LARGE_SEND_NO)
6257 dev->features |= NETIF_F_SG;
6258 else {
6259 dev->features &= ~NETIF_F_SG;
6260 return -EINVAL;
6261 }
6262 } else
6263 dev->features &= ~NETIF_F_SG;
6264 return 0;
6265}
6266
6267static u32
6268qeth_ethtool_get_tso(struct net_device *dev)
6269{
6270 struct qeth_card *card = (struct qeth_card *)dev->priv;
6271
6272 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6273 (dev->features & NETIF_F_TSO));
6274}
6275
6276static int
6277qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6278{
6279 struct qeth_card *card = (struct qeth_card *)dev->priv;
6280
6281 if (data) {
6282 if (card->options.large_send != QETH_LARGE_SEND_NO)
6283 dev->features |= NETIF_F_TSO;
6284 else {
6285 dev->features &= ~NETIF_F_TSO;
6286 return -EINVAL;
6287 }
6288 } else
6289 dev->features &= ~NETIF_F_TSO;
6290 return 0;
6291}
6292
6293static struct ethtool_ops qeth_ethtool_ops = {
6294 .get_tx_csum = qeth_ethtool_get_tx_csum,
6295 .set_tx_csum = qeth_ethtool_set_tx_csum,
6296 .get_rx_csum = qeth_ethtool_get_rx_csum,
6297 .set_rx_csum = qeth_ethtool_set_rx_csum,
6298 .get_sg = qeth_ethtool_get_sg,
6299 .set_sg = qeth_ethtool_set_sg,
6300 .get_tso = qeth_ethtool_get_tso,
6301 .set_tso = qeth_ethtool_set_tso,
6302};
6303
6304static int
6305qeth_netdev_init(struct net_device *dev)
6306{
6307 struct qeth_card *card;
6308
6309 card = (struct qeth_card *) dev->priv;
6310
6311 QETH_DBF_TEXT(trace,3,"initdev");
6312
6313 dev->tx_timeout = &qeth_tx_timeout;
6314 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6315 dev->open = qeth_open;
6316 dev->stop = qeth_stop;
6317 dev->hard_start_xmit = qeth_hard_start_xmit;
6318 dev->do_ioctl = qeth_do_ioctl;
6319 dev->get_stats = qeth_get_stats;
6320 dev->change_mtu = qeth_change_mtu;
6321 dev->neigh_setup = qeth_neigh_setup;
6322 dev->set_multicast_list = qeth_set_multicast_list;
6323#ifdef CONFIG_QETH_VLAN
6324 dev->vlan_rx_register = qeth_vlan_rx_register;
6325 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6326 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6327#endif
6328 dev->hard_header = card->orig_hard_header;
6329 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6330 dev->rebuild_header = NULL;
6331 dev->hard_header = NULL;
6332 if (card->options.fake_ll)
6333 dev->hard_header = qeth_fake_header;
6334 dev->header_cache_update = NULL;
6335 dev->hard_header_cache = NULL;
6336 }
6337#ifdef CONFIG_QETH_IPV6
6338 /*IPv6 address autoconfiguration stuff*/
6339 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6340 card->dev->dev_id = card->info.unique_id & 0xffff;
6341#endif
6342 dev->hard_header_parse = NULL;
6343 dev->set_mac_address = qeth_layer2_set_mac_address;
6344 dev->flags |= qeth_get_netdev_flags(card);
6345 if ((card->options.fake_broadcast) ||
6346 (card->info.broadcast_capable))
6347 dev->flags |= IFF_BROADCAST;
6348 dev->hard_header_len =
6349 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6350 dev->addr_len = OSA_ADDR_LEN;
6351 dev->mtu = card->info.initial_mtu;
500f83ab
UB		 6352 if (card->info.type != QETH_CARD_TYPE_OSN)
6353 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
1da177e4
LT		 6354 SET_MODULE_OWNER(dev);
6355 return 0;
6356}
6357
6358static void
6359qeth_init_func_level(struct qeth_card *card)
6360{
6361 if (card->ipato.enabled) {
6362 if (card->info.type == QETH_CARD_TYPE_IQD)
6363 card->info.func_level =
6364 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6365 else
6366 card->info.func_level =
6367 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6368 } else {
6369 if (card->info.type == QETH_CARD_TYPE_IQD)
500f83ab 6370 /*FIXME:why do we have same values for dis and ena for osae??? */
1da177e4
LT		 6371 card->info.func_level =
6372 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6373 else
6374 card->info.func_level =
6375 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6376 }
6377}
6378
6379/**
6380 * hardsetup card, initialize MPC and QDIO stuff
6381 */
6382static int
6383qeth_hardsetup_card(struct qeth_card *card)
6384{
6385 int retries = 3;
6386 int rc;
6387
6388 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6389
6390retry:
6391 if (retries < 3){
6392 PRINT_WARN("Retrying to do IDX activates.\n");
6393 ccw_device_set_offline(CARD_DDEV(card));
6394 ccw_device_set_offline(CARD_WDEV(card));
6395 ccw_device_set_offline(CARD_RDEV(card));
6396 ccw_device_set_online(CARD_RDEV(card));
6397 ccw_device_set_online(CARD_WDEV(card));
6398 ccw_device_set_online(CARD_DDEV(card));
6399 }
500f83ab 6400 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 6401 if (rc == -ERESTARTSYS) {
6402 QETH_DBF_TEXT(setup, 2, "break1");
6403 return rc;
6404 } else if (rc) {
6405 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6406 if (--retries < 0)
6407 goto out;
6408 else
6409 goto retry;
6410 }
6411 if ((rc = qeth_get_unitaddr(card))){
6412 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6413 return rc;
6414 }
6415 qeth_init_tokens(card);
6416 qeth_init_func_level(card);
6417 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6418 if (rc == -ERESTARTSYS) {
6419 QETH_DBF_TEXT(setup, 2, "break2");
6420 return rc;
6421 } else if (rc) {
6422 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6423 if (--retries < 0)
6424 goto out;
6425 else
6426 goto retry;
6427 }
6428 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6429 if (rc == -ERESTARTSYS) {
6430 QETH_DBF_TEXT(setup, 2, "break3");
6431 return rc;
6432 } else if (rc) {
6433 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6434 if (--retries < 0)
6435 goto out;
6436 else
6437 goto retry;
6438 }
6439 if ((rc = qeth_mpc_initialize(card))){
6440 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6441 goto out;
6442 }
6443 /*network device will be recovered*/
6444 if (card->dev) {
6445 card->dev->hard_header = card->orig_hard_header;
6446 return 0;
6447 }
6448 /* at first set_online allocate netdev */
6449 card->dev = qeth_get_netdevice(card->info.type,
6450 card->info.link_type);
6451 if (!card->dev){
500f83ab
UB		 6452 qeth_qdio_clear_card(card, card->info.type !=
6453 QETH_CARD_TYPE_IQD);
1da177e4
LT		 6454 rc = -ENODEV;
6455 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6456 goto out;
6457 }
6458 card->dev->priv = card;
6459 card->orig_hard_header = card->dev->hard_header;
6460 card->dev->type = qeth_get_arphdr_type(card->info.type,
6461 card->info.link_type);
6462 card->dev->init = qeth_netdev_init;
6463 return 0;
6464out:
6465 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6466 return rc;
6467}
6468
6469static int
6470qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6471 unsigned long data)
6472{
6473 struct qeth_ipa_cmd *cmd;
6474
6475 QETH_DBF_TEXT(trace,4,"defadpcb");
6476
6477 cmd = (struct qeth_ipa_cmd *) data;
6478 if (cmd->hdr.return_code == 0){
6479 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6480 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6481 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6482#ifdef CONFIG_QETH_IPV6
6483 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6484 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6485#endif
6486 }
6487 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6488 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6489 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6490 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6491 }
6492 return 0;
6493}
6494
6495static int
6496qeth_default_setadapterparms_cb(struct qeth_card *card,
6497 struct qeth_reply *reply,
6498 unsigned long data)
6499{
6500 struct qeth_ipa_cmd *cmd;
6501
6502 QETH_DBF_TEXT(trace,4,"defadpcb");
6503
6504 cmd = (struct qeth_ipa_cmd *) data;
6505 if (cmd->hdr.return_code == 0)
6506 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6507 return 0;
6508}
6509
6510static int
6511qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6512 unsigned long data)
6513{
6514 struct qeth_ipa_cmd *cmd;
6515
6516 QETH_DBF_TEXT(trace,3,"quyadpcb");
6517
6518 cmd = (struct qeth_ipa_cmd *) data;
6519 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6520 card->info.link_type =
6521 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6522 card->options.adp.supported_funcs =
6523 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6524 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6525}
6526
6527static int
6528qeth_query_setadapterparms(struct qeth_card *card)
6529{
6530 int rc;
6531 struct qeth_cmd_buffer *iob;
6532
6533 QETH_DBF_TEXT(trace,3,"queryadp");
6534 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6535 sizeof(struct qeth_ipacmd_setadpparms));
6536 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6537 return rc;
6538}
6539
6540static int
6541qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6542 struct qeth_reply *reply,
6543 unsigned long data)
6544{
6545 struct qeth_ipa_cmd *cmd;
6546
6547 QETH_DBF_TEXT(trace,4,"chgmaccb");
6548
6549 cmd = (struct qeth_ipa_cmd *) data;
6550 memcpy(card->dev->dev_addr,
6551 &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
6552 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6553 return 0;
6554}
6555
6556static int
6557qeth_setadpparms_change_macaddr(struct qeth_card *card)
6558{
6559 int rc;
6560 struct qeth_cmd_buffer *iob;
6561 struct qeth_ipa_cmd *cmd;
6562
6563 QETH_DBF_TEXT(trace,4,"chgmac");
6564
6565 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6566 sizeof(struct qeth_ipacmd_setadpparms));
6567 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6568 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6569 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6570 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6571 card->dev->dev_addr, OSA_ADDR_LEN);
6572 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6573 NULL);
6574 return rc;
6575}
6576
6577static int
6578qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6579{
6580 int rc;
6581 struct qeth_cmd_buffer *iob;
6582 struct qeth_ipa_cmd *cmd;
6583
6584 QETH_DBF_TEXT(trace,4,"adpmode");
6585
6586 iob = qeth_get_adapter_cmd(card, command,
6587 sizeof(struct qeth_ipacmd_setadpparms));
6588 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6589 cmd->data.setadapterparms.data.mode = mode;
6590 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6591 NULL);
6592 return rc;
6593}
6594
6595static inline int
6596qeth_setadapter_hstr(struct qeth_card *card)
6597{
6598 int rc;
6599
6600 QETH_DBF_TEXT(trace,4,"adphstr");
6601
6602 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6603 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6604 card->options.broadcast_mode);
6605 if (rc)
6606 PRINT_WARN("couldn't set broadcast mode on "
6607 "device %s: x%x\n",
6608 CARD_BUS_ID(card), rc);
6609 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6610 card->options.macaddr_mode);
6611 if (rc)
6612 PRINT_WARN("couldn't set macaddr mode on "
6613 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6614 return rc;
6615 }
6616 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6617 PRINT_WARN("set adapter parameters not available "
6618 "to set broadcast mode, using ALLRINGS "
6619 "on device %s:\n", CARD_BUS_ID(card));
6620 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6621 PRINT_WARN("set adapter parameters not available "
6622 "to set macaddr mode, using NONCANONICAL "
6623 "on device %s:\n", CARD_BUS_ID(card));
6624 return 0;
6625}
6626
6627static int
6628qeth_setadapter_parms(struct qeth_card *card)
6629{
6630 int rc;
6631
6632 QETH_DBF_TEXT(setup, 2, "setadprm");
6633
6634 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6635 PRINT_WARN("set adapter parameters not supported "
6636 "on device %s.\n",
6637 CARD_BUS_ID(card));
6638 QETH_DBF_TEXT(setup, 2, " notsupp");
6639 return 0;
6640 }
6641 rc = qeth_query_setadapterparms(card);
6642 if (rc) {
6643 PRINT_WARN("couldn't set adapter parameters on device %s: "
6644 "x%x\n", CARD_BUS_ID(card), rc);
6645 return rc;
6646 }
6647 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6648 rc = qeth_setadpparms_change_macaddr(card);
6649 if (rc)
6650 PRINT_WARN("couldn't get MAC address on "
6651 "device %s: x%x\n",
6652 CARD_BUS_ID(card), rc);
6653 }
6654
6655 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6656 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6657 rc = qeth_setadapter_hstr(card);
6658
6659 return rc;
6660}
6661
6662static int
6663qeth_layer2_initialize(struct qeth_card *card)
6664{
6665 int rc = 0;
6666
6667
6668 QETH_DBF_TEXT(setup, 2, "doL2init");
6669 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6670
6671 rc = qeth_setadpparms_change_macaddr(card);
6672 if (rc) {
6673 PRINT_WARN("couldn't get MAC address on "
6674 "device %s: x%x\n",
6675 CARD_BUS_ID(card), rc);
6676 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6677 return rc;
6678 }
6679 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6680
6681 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6682 if (rc)
6683 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6684 return 0;
6685}
6686
6687
6688static int
6689qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6690 enum qeth_prot_versions prot)
6691{
6692 int rc;
6693 struct qeth_cmd_buffer *iob;
6694
6695 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6696 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6697
6698 return rc;
6699}
6700
6701static int
6702qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6703{
6704 int rc;
6705
6706 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6707
6708 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6709 return rc;
6710}
6711
6712static int
6713qeth_send_stoplan(struct qeth_card *card)
6714{
6715 int rc = 0;
6716
6717 /*
6718 * TODO: according to the IPA format document page 14,
6719 * TCP/IP (we!) never issue a STOPLAN
6720 * is this right ?!?
6721 */
6722 QETH_DBF_TEXT(trace, 2, "stoplan");
6723
6724 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6725 return rc;
6726}
6727
6728static int
6729qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6730 unsigned long data)
6731{
6732 struct qeth_ipa_cmd *cmd;
6733
6734 QETH_DBF_TEXT(setup, 2, "qipasscb");
6735
6736 cmd = (struct qeth_ipa_cmd *) data;
6737 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6738 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6739 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
9123e0d7
UB		 6740 /* Disable IPV6 support hard coded for Hipersockets */
6741 if(card->info.type == QETH_CARD_TYPE_IQD)
6742 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
1da177e4
LT		 6743 } else {
6744#ifdef CONFIG_QETH_IPV6
6745 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6746 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6747#endif
6748 }
6749 QETH_DBF_TEXT(setup, 2, "suppenbl");
6750 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6751 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6752 return 0;
6753}
6754
6755static int
6756qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6757{
6758 int rc;
6759 struct qeth_cmd_buffer *iob;
6760
6761 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6762 if (card->options.layer2) {
6763 QETH_DBF_TEXT(setup, 2, "noprmly2");
6764 return -EPERM;
6765 }
6766
6767 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6768 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6769 return rc;
6770}
6771
6772static struct qeth_cmd_buffer *
6773qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6774 __u16 cmd_code, __u16 len,
6775 enum qeth_prot_versions prot)
6776{
6777 struct qeth_cmd_buffer *iob;
6778 struct qeth_ipa_cmd *cmd;
6779
6780 QETH_DBF_TEXT(trace,4,"getasscm");
6781 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6782
6783 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6784 cmd->data.setassparms.hdr.assist_no = ipa_func;
6785 cmd->data.setassparms.hdr.length = 8 + len;
6786 cmd->data.setassparms.hdr.command_code = cmd_code;
6787 cmd->data.setassparms.hdr.return_code = 0;
6788 cmd->data.setassparms.hdr.seq_no = 0;
6789
6790 return iob;
6791}
6792
6793static int
6794qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6795 __u16 len, long data,
6796 int (*reply_cb)
6797 (struct qeth_card *,struct qeth_reply *,unsigned long),
6798 void *reply_param)
6799{
6800 int rc;
6801 struct qeth_ipa_cmd *cmd;
6802
6803 QETH_DBF_TEXT(trace,4,"sendassp");
6804
6805 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6806 if (len <= sizeof(__u32))
6807 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6808 else if (len > sizeof(__u32))
6809 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6810
6811 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6812 return rc;
6813}
6814
6815#ifdef CONFIG_QETH_IPV6
6816static int
6817qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6818 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6819
6820{
6821 int rc;
6822 struct qeth_cmd_buffer *iob;
6823
6824 QETH_DBF_TEXT(trace,4,"simassp6");
6825 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6826 0, QETH_PROT_IPV6);
6827 rc = qeth_send_setassparms(card, iob, 0, 0,
6828 qeth_default_setassparms_cb, NULL);
6829 return rc;
6830}
6831#endif
6832
6833static int
6834qeth_send_simple_setassparms(struct qeth_card *card,
6835 enum qeth_ipa_funcs ipa_func,
6836 __u16 cmd_code, long data)
6837{
6838 int rc;
6839 int length = 0;
6840 struct qeth_cmd_buffer *iob;
6841
6842 QETH_DBF_TEXT(trace,4,"simassp4");
6843 if (data)
6844 length = sizeof(__u32);
6845 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6846 length, QETH_PROT_IPV4);
6847 rc = qeth_send_setassparms(card, iob, length, data,
6848 qeth_default_setassparms_cb, NULL);
6849 return rc;
6850}
6851
6852static inline int
6853qeth_start_ipa_arp_processing(struct qeth_card *card)
6854{
6855 int rc;
6856
6857 QETH_DBF_TEXT(trace,3,"ipaarp");
6858
6859 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6860 PRINT_WARN("ARP processing not supported "
6861 "on %s!\n", QETH_CARD_IFNAME(card));
6862 return 0;
6863 }
6864 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6865 IPA_CMD_ASS_START, 0);
6866 if (rc) {
6867 PRINT_WARN("Could not start ARP processing "
6868 "assist on %s: 0x%x\n",
6869 QETH_CARD_IFNAME(card), rc);
6870 }
6871 return rc;
6872}
6873
6874static int
6875qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6876{
6877 int rc;
6878
6879 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6880
6881 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6882 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6883 QETH_CARD_IFNAME(card));
6884 return -EOPNOTSUPP;
6885 }
6886
6887 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6888 IPA_CMD_ASS_START, 0);
6889 if (rc) {
6890 PRINT_WARN("Could not start Hardware IP fragmentation "
6891 "assist on %s: 0x%x\n",
6892 QETH_CARD_IFNAME(card), rc);
6893 } else
6894 PRINT_INFO("Hardware IP fragmentation enabled \n");
6895 return rc;
6896}
6897
6898static int
6899qeth_start_ipa_source_mac(struct qeth_card *card)
6900{
6901 int rc;
6902
6903 QETH_DBF_TEXT(trace,3,"stsrcmac");
6904
6905 if (!card->options.fake_ll)
6906 return -EOPNOTSUPP;
6907
6908 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6909 PRINT_INFO("Inbound source address not "
6910 "supported on %s\n", QETH_CARD_IFNAME(card));
6911 return -EOPNOTSUPP;
6912 }
6913
6914 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6915 IPA_CMD_ASS_START, 0);
6916 if (rc)
6917 PRINT_WARN("Could not start inbound source "
6918 "assist on %s: 0x%x\n",
6919 QETH_CARD_IFNAME(card), rc);
6920 return rc;
6921}
6922
6923static int
6924qeth_start_ipa_vlan(struct qeth_card *card)
6925{
6926 int rc = 0;
6927
6928 QETH_DBF_TEXT(trace,3,"strtvlan");
6929
6930#ifdef CONFIG_QETH_VLAN
6931 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6932 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6933 return -EOPNOTSUPP;
6934 }
6935
6936 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6937 IPA_CMD_ASS_START,0);
6938 if (rc) {
6939 PRINT_WARN("Could not start vlan "
6940 "assist on %s: 0x%x\n",
6941 QETH_CARD_IFNAME(card), rc);
6942 } else {
6943 PRINT_INFO("VLAN enabled \n");
6944 card->dev->features |=
6945 NETIF_F_HW_VLAN_FILTER |
6946 NETIF_F_HW_VLAN_TX |
6947 NETIF_F_HW_VLAN_RX;
6948 }
6949#endif /* QETH_VLAN */
6950 return rc;
6951}
6952
6953static int
6954qeth_start_ipa_multicast(struct qeth_card *card)
6955{
6956 int rc;
6957
6958 QETH_DBF_TEXT(trace,3,"stmcast");
6959
6960 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
6961 PRINT_WARN("Multicast not supported on %s\n",
6962 QETH_CARD_IFNAME(card));
6963 return -EOPNOTSUPP;
6964 }
6965
6966 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
6967 IPA_CMD_ASS_START,0);
6968 if (rc) {
6969 PRINT_WARN("Could not start multicast "
6970 "assist on %s: rc=%i\n",
6971 QETH_CARD_IFNAME(card), rc);
6972 } else {
6973 PRINT_INFO("Multicast enabled\n");
6974 card->dev->flags |= IFF_MULTICAST;
6975 }
6976 return rc;
6977}
6978
6979#ifdef CONFIG_QETH_IPV6
6980static int
6981qeth_softsetup_ipv6(struct qeth_card *card)
6982{
6983 int rc;
6984
6985 QETH_DBF_TEXT(trace,3,"softipv6");
6986
6987 netif_stop_queue(card->dev);
6988 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
6989 if (rc) {
6990 PRINT_ERR("IPv6 startlan failed on %s\n",
6991 QETH_CARD_IFNAME(card));
6992 return rc;
6993 }
6994 netif_wake_queue(card->dev);
6995 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
6996 if (rc) {
6997 PRINT_ERR("IPv6 query ipassist failed on %s\n",
6998 QETH_CARD_IFNAME(card));
6999 return rc;
7000 }
7001 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7002 IPA_CMD_ASS_START, 3);
7003 if (rc) {
7004 PRINT_WARN("IPv6 start assist (version 4) failed "
7005 "on %s: 0x%x\n",
7006 QETH_CARD_IFNAME(card), rc);
7007 return rc;
7008 }
7009 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7010 IPA_CMD_ASS_START);
7011 if (rc) {
7012 PRINT_WARN("IPV6 start assist (version 6) failed "
7013 "on %s: 0x%x\n",
7014 QETH_CARD_IFNAME(card), rc);
7015 return rc;
7016 }
7017 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7018 IPA_CMD_ASS_START);
7019 if (rc) {
7020 PRINT_WARN("Could not enable passthrough "
7021 "on %s: 0x%x\n",
7022 QETH_CARD_IFNAME(card), rc);
7023 return rc;
7024 }
7025 PRINT_INFO("IPV6 enabled \n");
7026 return 0;
7027}
7028
7029#endif
7030
7031static int
7032qeth_start_ipa_ipv6(struct qeth_card *card)
7033{
7034 int rc = 0;
7035#ifdef CONFIG_QETH_IPV6
7036 QETH_DBF_TEXT(trace,3,"strtipv6");
7037
7038 if (!qeth_is_supported(card, IPA_IPV6)) {
7039 PRINT_WARN("IPv6 not supported on %s\n",
7040 QETH_CARD_IFNAME(card));
7041 return 0;
7042 }
7043 rc = qeth_softsetup_ipv6(card);
7044#endif
7045 return rc ;
7046}
7047
7048static int
7049qeth_start_ipa_broadcast(struct qeth_card *card)
7050{
7051 int rc;
7052
7053 QETH_DBF_TEXT(trace,3,"stbrdcst");
7054 card->info.broadcast_capable = 0;
7055 if (!qeth_is_supported(card, IPA_FILTERING)) {
7056 PRINT_WARN("Broadcast not supported on %s\n",
7057 QETH_CARD_IFNAME(card));
7058 rc = -EOPNOTSUPP;
7059 goto out;
7060 }
7061 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7062 IPA_CMD_ASS_START, 0);
7063 if (rc) {
7064 PRINT_WARN("Could not enable broadcasting filtering "
7065 "on %s: 0x%x\n",
7066 QETH_CARD_IFNAME(card), rc);
7067 goto out;
7068 }
7069
7070 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7071 IPA_CMD_ASS_CONFIGURE, 1);
7072 if (rc) {
7073 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7074 QETH_CARD_IFNAME(card), rc);
7075 goto out;
7076 }
7077 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7078 PRINT_INFO("Broadcast enabled \n");
7079 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7080 IPA_CMD_ASS_ENABLE, 1);
7081 if (rc) {
7082 PRINT_WARN("Could not set up broadcast echo filtering on "
7083 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7084 goto out;
7085 }
7086 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7087out:
7088 if (card->info.broadcast_capable)
7089 card->dev->flags |= IFF_BROADCAST;
7090 else
7091 card->dev->flags &= ~IFF_BROADCAST;
7092 return rc;
7093}
7094
7095static int
7096qeth_send_checksum_command(struct qeth_card *card)
7097{
7098 int rc;
7099
7100 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7101 IPA_CMD_ASS_START, 0);
7102 if (rc) {
7103 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7104 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7105 QETH_CARD_IFNAME(card), rc);
7106 return rc;
7107 }
7108 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7109 IPA_CMD_ASS_ENABLE,
7110 card->info.csum_mask);
7111 if (rc) {
7112 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7113 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7114 QETH_CARD_IFNAME(card), rc);
7115 return rc;
7116 }
7117 return 0;
7118}
7119
7120static int
7121qeth_start_ipa_checksum(struct qeth_card *card)
7122{
7123 int rc = 0;
7124
7125 QETH_DBF_TEXT(trace,3,"strtcsum");
7126
7127 if (card->options.checksum_type == NO_CHECKSUMMING) {
7128 PRINT_WARN("Using no checksumming on %s.\n",
7129 QETH_CARD_IFNAME(card));
7130 return 0;
7131 }
7132 if (card->options.checksum_type == SW_CHECKSUMMING) {
7133 PRINT_WARN("Using SW checksumming on %s.\n",
7134 QETH_CARD_IFNAME(card));
7135 return 0;
7136 }
7137 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7138 PRINT_WARN("Inbound HW Checksumming not "
7139 "supported on %s,\ncontinuing "
7140 "using Inbound SW Checksumming\n",
7141 QETH_CARD_IFNAME(card));
7142 card->options.checksum_type = SW_CHECKSUMMING;
7143 return 0;
7144 }
7145 rc = qeth_send_checksum_command(card);
7146 if (!rc) {
7147 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7148 }
7149 return rc;
7150}
7151
7152static int
7153qeth_start_ipa_tso(struct qeth_card *card)
7154{
7155 int rc;
7156
7157 QETH_DBF_TEXT(trace,3,"sttso");
7158
7159 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7160 PRINT_WARN("Outbound TSO not supported on %s\n",
7161 QETH_CARD_IFNAME(card));
7162 rc = -EOPNOTSUPP;
7163 } else {
7164 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7165 IPA_CMD_ASS_START,0);
7166 if (rc)
7167 PRINT_WARN("Could not start outbound TSO "
7168 "assist on %s: rc=%i\n",
7169 QETH_CARD_IFNAME(card), rc);
7170 else
7171 PRINT_INFO("Outbound TSO enabled\n");
7172 }
7173 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7174 card->options.large_send = QETH_LARGE_SEND_NO;
7175 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7176 }
7177 return rc;
7178}
7179
7180static int
7181qeth_start_ipassists(struct qeth_card *card)
7182{
7183 QETH_DBF_TEXT(trace,3,"strtipas");
7184 qeth_start_ipa_arp_processing(card); /* go on*/
7185 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7186 qeth_start_ipa_source_mac(card); /* go on*/
7187 qeth_start_ipa_vlan(card); /* go on*/
7188 qeth_start_ipa_multicast(card); /* go on*/
7189 qeth_start_ipa_ipv6(card); /* go on*/
7190 qeth_start_ipa_broadcast(card); /* go on*/
7191 qeth_start_ipa_checksum(card); /* go on*/
7192 qeth_start_ipa_tso(card); /* go on*/
7193 return 0;
7194}
7195
7196static int
7197qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7198 enum qeth_prot_versions prot)
7199{
7200 int rc;
7201 struct qeth_ipa_cmd *cmd;
7202 struct qeth_cmd_buffer *iob;
7203
7204 QETH_DBF_TEXT(trace,4,"setroutg");
7205 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7206 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7207 cmd->data.setrtg.type = (type);
7208 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7209
7210 return rc;
7211
7212}
7213
7214static void
7215qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7216 enum qeth_prot_versions prot)
7217{
7218 if (card->info.type == QETH_CARD_TYPE_IQD) {
7219 switch (*type) {
7220 case NO_ROUTER:
7221 case PRIMARY_CONNECTOR:
7222 case SECONDARY_CONNECTOR:
7223 case MULTICAST_ROUTER:
7224 return;
7225 default:
7226 goto out_inval;
7227 }
7228 } else {
7229 switch (*type) {
7230 case NO_ROUTER:
7231 case PRIMARY_ROUTER:
7232 case SECONDARY_ROUTER:
7233 return;
7234 case MULTICAST_ROUTER:
7235 if (qeth_is_ipafunc_supported(card, prot,
7236 IPA_OSA_MC_ROUTER))
7237 return;
7238 default:
7239 goto out_inval;
7240 }
7241 }
7242out_inval:
7243 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7244 "Router status set to 'no router'.\n",
7245 ((*type == PRIMARY_ROUTER)? "primary router" :
7246 (*type == SECONDARY_ROUTER)? "secondary router" :
7247 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7248 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7249 (*type == MULTICAST_ROUTER)? "multicast router" :
7250 "unknown"),
7251 card->dev->name);
7252 *type = NO_ROUTER;
7253}
7254
7255int
7256qeth_setrouting_v4(struct qeth_card *card)
7257{
7258 int rc;
7259
7260 QETH_DBF_TEXT(trace,3,"setrtg4");
7261
7262 qeth_correct_routing_type(card, &card->options.route4.type,
7263 QETH_PROT_IPV4);
7264
7265 rc = qeth_send_setrouting(card, card->options.route4.type,
7266 QETH_PROT_IPV4);
7267 if (rc) {
7268 card->options.route4.type = NO_ROUTER;
7269 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7270 "Type set to 'no router'.\n",
7271 rc, QETH_CARD_IFNAME(card));
7272 }
7273 return rc;
7274}
7275
7276int
7277qeth_setrouting_v6(struct qeth_card *card)
7278{
7279 int rc = 0;
7280
7281 QETH_DBF_TEXT(trace,3,"setrtg6");
7282#ifdef CONFIG_QETH_IPV6
7283
7284 qeth_correct_routing_type(card, &card->options.route6.type,
7285 QETH_PROT_IPV6);
7286
7287 if ((card->options.route6.type == NO_ROUTER) ||
7288 ((card->info.type == QETH_CARD_TYPE_OSAE) &&
7289 (card->options.route6.type == MULTICAST_ROUTER) &&
7290 !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
7291 return 0;
7292 rc = qeth_send_setrouting(card, card->options.route6.type,
7293 QETH_PROT_IPV6);
7294 if (rc) {
7295 card->options.route6.type = NO_ROUTER;
7296 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7297 "Type set to 'no router'.\n",
7298 rc, QETH_CARD_IFNAME(card));
7299 }
7300#endif
7301 return rc;
7302}
7303
7304int
9cb90de8 7305qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
1da177e4
LT		 7306{
7307 int rc = 0;
7308
9cb90de8
FP		 7309 if (card->dev == NULL) {
7310 card->options.large_send = type;
1da177e4 7311 return 0;
9cb90de8 7312 }
1da177e4 7313 netif_stop_queue(card->dev);
9cb90de8 7314 card->options.large_send = type;
1da177e4
LT		 7315 switch (card->options.large_send) {
7316 case QETH_LARGE_SEND_EDDP:
7317 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7318 break;
7319 case QETH_LARGE_SEND_TSO:
7320 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7321 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7322 } else {
7323 PRINT_WARN("TSO not supported on %s. "
7324 "large_send set to 'no'.\n",
7325 card->dev->name);
7326 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7327 card->options.large_send = QETH_LARGE_SEND_NO;
7328 rc = -EOPNOTSUPP;
7329 }
7330 break;
7331 default: /* includes QETH_LARGE_SEND_NO */
7332 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7333 break;
7334 }
1da177e4
LT		 7335 netif_wake_queue(card->dev);
7336 return rc;
7337}
7338
7339/*
7340 * softsetup card: init IPA stuff
7341 */
7342static int
7343qeth_softsetup_card(struct qeth_card *card)
7344{
7345 int rc;
7346
7347 QETH_DBF_TEXT(setup, 2, "softsetp");
7348
7349 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7350 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7351 if (rc == 0xe080){
7352 PRINT_WARN("LAN on card %s if offline! "
7353 "Continuing softsetup.\n",
7354 CARD_BUS_ID(card));
7355 card->lan_online = 0;
7356 } else
7357 return rc;
7358 } else
7359 card->lan_online = 1;
500f83ab
UB		 7360 if (card->info.type==QETH_CARD_TYPE_OSN)
7361 goto out;
1da177e4
LT		 7362 if (card->options.layer2) {
7363 card->dev->features |=
7364 NETIF_F_HW_VLAN_FILTER |
7365 NETIF_F_HW_VLAN_TX |
7366 NETIF_F_HW_VLAN_RX;
7367 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7368 card->info.broadcast_capable=1;
7369 if ((rc = qeth_layer2_initialize(card))) {
7370 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7371 return rc;
7372 }
7373#ifdef CONFIG_QETH_VLAN
7374 qeth_layer2_process_vlans(card, 0);
7375#endif
7376 goto out;
7377 }
7378 if ((card->options.large_send == QETH_LARGE_SEND_EDDP) ||
7379 (card->options.large_send == QETH_LARGE_SEND_TSO))
7380 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7381 else
7382 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7383
7384 if ((rc = qeth_setadapter_parms(card)))
7385 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7386 if ((rc = qeth_start_ipassists(card)))
7387 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7388 if ((rc = qeth_setrouting_v4(card)))
7389 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7390 if ((rc = qeth_setrouting_v6(card)))
7391 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7392out:
7393 netif_stop_queue(card->dev);
7394 return 0;
7395}
7396
7397#ifdef CONFIG_QETH_IPV6
7398static int
7399qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7400 unsigned long data)
7401{
7402 struct qeth_ipa_cmd *cmd;
7403
7404 cmd = (struct qeth_ipa_cmd *) data;
7405 if (cmd->hdr.return_code == 0)
7406 card->info.unique_id = *((__u16 *)
7407 &cmd->data.create_destroy_addr.unique_id[6]);
7408 else {
7409 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7410 UNIQUE_ID_NOT_BY_CARD;
7411 PRINT_WARN("couldn't get a unique id from the card on device "
7412 "%s (result=x%x), using default id. ipv6 "
7413 "autoconfig on other lpars may lead to duplicate "
7414 "ip addresses. please use manually "
7415 "configured ones.\n",
7416 CARD_BUS_ID(card), cmd->hdr.return_code);
7417 }
7418 return 0;
7419}
7420#endif
7421
7422static int
7423qeth_put_unique_id(struct qeth_card *card)
7424{
7425
7426 int rc = 0;
7427#ifdef CONFIG_QETH_IPV6
7428 struct qeth_cmd_buffer *iob;
7429 struct qeth_ipa_cmd *cmd;
7430
7431 QETH_DBF_TEXT(trace,2,"puniqeid");
7432
7433 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7434 UNIQUE_ID_NOT_BY_CARD)
7435 return -1;
7436 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7437 QETH_PROT_IPV6);
7438 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7439 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7440 card->info.unique_id;
7441 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7442 card->dev->dev_addr, OSA_ADDR_LEN);
7443 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7444#else
7445 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7446 UNIQUE_ID_NOT_BY_CARD;
7447#endif
7448 return rc;
7449}
7450
7451/**
7452 * Clear IP List
7453 */
7454static void
7455qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7456{
7457 struct qeth_ipaddr *addr, *tmp;
7458 unsigned long flags;
7459
7460 QETH_DBF_TEXT(trace,4,"clearip");
7461 spin_lock_irqsave(&card->ip_lock, flags);
7462 /* clear todo list */
7463 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7464 list_del(&addr->entry);
7465 kfree(addr);
7466 }
7467
7468 while (!list_empty(&card->ip_list)) {
7469 addr = list_entry(card->ip_list.next,
7470 struct qeth_ipaddr, entry);
7471 list_del_init(&addr->entry);
7472 if (clean) {
7473 spin_unlock_irqrestore(&card->ip_lock, flags);
7474 qeth_deregister_addr_entry(card, addr);
7475 spin_lock_irqsave(&card->ip_lock, flags);
7476 }
7477 if (!recover || addr->is_multicast) {
7478 kfree(addr);
7479 continue;
7480 }
7481 list_add_tail(&addr->entry, card->ip_tbd_list);
7482 }
7483 spin_unlock_irqrestore(&card->ip_lock, flags);
7484}
7485
7486static void
7487qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7488 int clear_start_mask)
7489{
7490 unsigned long flags;
7491
7492 spin_lock_irqsave(&card->thread_mask_lock, flags);
7493 card->thread_allowed_mask = threads;
7494 if (clear_start_mask)
7495 card->thread_start_mask &= threads;
7496 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7497 wake_up(&card->wait_q);
7498}
7499
7500static inline int
7501qeth_threads_running(struct qeth_card *card, unsigned long threads)
7502{
7503 unsigned long flags;
7504 int rc = 0;
7505
7506 spin_lock_irqsave(&card->thread_mask_lock, flags);
7507 rc = (card->thread_running_mask & threads);
7508 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7509 return rc;
7510}
7511
7512static int
7513qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7514{
7515 return wait_event_interruptible(card->wait_q,
7516 qeth_threads_running(card, threads) == 0);
7517}
7518
7519static int
05e08a2a 7520qeth_stop_card(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7521{
7522 int rc = 0;
7523
7524 QETH_DBF_TEXT(setup ,2,"stopcard");
7525 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7526
7527 qeth_set_allowed_threads(card, 0, 1);
7528 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7529 return -ERESTARTSYS;
7530 if (card->read.state == CH_STATE_UP &&
7531 card->write.state == CH_STATE_UP &&
7532 (card->state == CARD_STATE_UP)) {
500f83ab
UB		 7533 if (recovery_mode &&
7534 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7535 qeth_stop(card->dev);
7536 } else {
7537 rtnl_lock();
7538 dev_close(card->dev);
7539 rtnl_unlock();
7540 }
1da177e4
LT		 7541 if (!card->use_hard_stop) {
7542 __u8 *mac = &card->dev->dev_addr[0];
7543 rc = qeth_layer2_send_delmac(card, mac);
7544 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7545 if ((rc = qeth_send_stoplan(card)))
7546 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7547 }
7548 card->state = CARD_STATE_SOFTSETUP;
7549 }
7550 if (card->state == CARD_STATE_SOFTSETUP) {
7551#ifdef CONFIG_QETH_VLAN
7552 if (card->options.layer2)
7553 qeth_layer2_process_vlans(card, 1);
7554#endif
7555 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7556 qeth_clear_ipacmd_list(card);
7557 card->state = CARD_STATE_HARDSETUP;
7558 }
7559 if (card->state == CARD_STATE_HARDSETUP) {
7560 if ((!card->use_hard_stop) &&
7561 (!card->options.layer2))
7562 if ((rc = qeth_put_unique_id(card)))
7563 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7564 qeth_qdio_clear_card(card, 0);
7565 qeth_clear_qdio_buffers(card);
7566 qeth_clear_working_pool_list(card);
7567 card->state = CARD_STATE_DOWN;
7568 }
7569 if (card->state == CARD_STATE_DOWN) {
7570 qeth_clear_cmd_buffers(&card->read);
7571 qeth_clear_cmd_buffers(&card->write);
7572 }
7573 card->use_hard_stop = 0;
7574 return rc;
7575}
7576
7577
7578static int
7579qeth_get_unique_id(struct qeth_card *card)
7580{
7581 int rc = 0;
7582#ifdef CONFIG_QETH_IPV6
7583 struct qeth_cmd_buffer *iob;
7584 struct qeth_ipa_cmd *cmd;
7585
7586 QETH_DBF_TEXT(setup, 2, "guniqeid");
7587
7588 if (!qeth_is_supported(card,IPA_IPV6)) {
7589 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7590 UNIQUE_ID_NOT_BY_CARD;
7591 return 0;
7592 }
7593
7594 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7595 QETH_PROT_IPV6);
7596 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7597 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7598 card->info.unique_id;
7599
7600 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7601#else
7602 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7603 UNIQUE_ID_NOT_BY_CARD;
7604#endif
7605 return rc;
7606}
7607static void
7608qeth_print_status_with_portname(struct qeth_card *card)
7609{
7610 char dbf_text[15];
7611 int i;
7612
7613 sprintf(dbf_text, "%s", card->info.portname + 1);
7614 for (i = 0; i < 8; i++)
7615 dbf_text[i] =
7616 (char) _ebcasc[(__u8) dbf_text[i]];
7617 dbf_text[8] = 0;
7618 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7619 "with link type %s (portname: %s)\n",
7620 CARD_RDEV_ID(card),
7621 CARD_WDEV_ID(card),
7622 CARD_DDEV_ID(card),
7623 qeth_get_cardname(card),
7624 (card->info.mcl_level[0]) ? " (level: " : "",
7625 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7626 (card->info.mcl_level[0]) ? ")" : "",
7627 qeth_get_cardname_short(card),
7628 dbf_text);
7629
7630}
7631
7632static void
7633qeth_print_status_no_portname(struct qeth_card *card)
7634{
7635 if (card->info.portname[0])
7636 printk("qeth: Device %s/%s/%s is a%s "
7637 "card%s%s%s\nwith link type %s "
7638 "(no portname needed by interface).\n",
7639 CARD_RDEV_ID(card),
7640 CARD_WDEV_ID(card),
7641 CARD_DDEV_ID(card),
7642 qeth_get_cardname(card),
7643 (card->info.mcl_level[0]) ? " (level: " : "",
7644 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7645 (card->info.mcl_level[0]) ? ")" : "",
7646 qeth_get_cardname_short(card));
7647 else
7648 printk("qeth: Device %s/%s/%s is a%s "
7649 "card%s%s%s\nwith link type %s.\n",
7650 CARD_RDEV_ID(card),
7651 CARD_WDEV_ID(card),
7652 CARD_DDEV_ID(card),
7653 qeth_get_cardname(card),
7654 (card->info.mcl_level[0]) ? " (level: " : "",
7655 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7656 (card->info.mcl_level[0]) ? ")" : "",
7657 qeth_get_cardname_short(card));
7658}
7659
7660static void
7661qeth_print_status_message(struct qeth_card *card)
7662{
7663 switch (card->info.type) {
7664 case QETH_CARD_TYPE_OSAE:
7665 /* VM will use a non-zero first character
7666 * to indicate a HiperSockets like reporting
7667 * of the level OSA sets the first character to zero
7668 * */
7669 if (!card->info.mcl_level[0]) {
7670 sprintf(card->info.mcl_level,"%02x%02x",
7671 card->info.mcl_level[2],
7672 card->info.mcl_level[3]);
7673
7674 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7675 break;
7676 }
7677 /* fallthrough */
7678 case QETH_CARD_TYPE_IQD:
7679 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7680 card->info.mcl_level[0]];
7681 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7682 card->info.mcl_level[1]];
7683 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7684 card->info.mcl_level[2]];
7685 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7686 card->info.mcl_level[3]];
7687 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7688 break;
7689 default:
7690 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7691 }
7692 if (card->info.portname_required)
7693 qeth_print_status_with_portname(card);
7694 else
7695 qeth_print_status_no_portname(card);
7696}
7697
7698static int
7699qeth_register_netdev(struct qeth_card *card)
7700{
7701 QETH_DBF_TEXT(setup, 3, "regnetd");
7702 if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7703 qeth_netdev_init(card->dev);
7704 return 0;
7705 }
7706 /* sysfs magic */
7707 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7708 return register_netdev(card->dev);
7709}
7710
7711static void
05e08a2a 7712qeth_start_again(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7713{
7714 QETH_DBF_TEXT(setup ,2, "startag");
7715
500f83ab
UB		 7716 if (recovery_mode &&
7717 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7718 qeth_open(card->dev);
7719 } else {
7720 rtnl_lock();
7721 dev_open(card->dev);
7722 rtnl_unlock();
7723 }
1da177e4
LT		 7724 /* this also sets saved unicast addresses */
7725 qeth_set_multicast_list(card->dev);
7726}
7727
7728
7729/* Layer 2 specific stuff */
7730#define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7731 if (card->options.option == value) { \
7732 PRINT_ERR("%s not supported with layer 2 " \
7733 "functionality, ignoring option on read" \
7734 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7735 card->options.option = reset_value; \
7736 }
7737#define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7738 if (card->options.option != value) { \
7739 PRINT_ERR("%s not supported with layer 2 " \
7740 "functionality, ignoring option on read" \
7741 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7742 card->options.option = reset_value; \
7743 }
7744
7745
7746static void qeth_make_parameters_consistent(struct qeth_card *card)
7747{
7748
500f83ab
UB		 7749 if (card->options.layer2 == 0)
7750 return;
7751 if (card->info.type == QETH_CARD_TYPE_OSN)
7752 return;
7753 if (card->info.type == QETH_CARD_TYPE_IQD) {
7754 PRINT_ERR("Device %s does not support layer 2 functionality." \
7755 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7756 card->options.layer2 = 0;
7757 return;
7758 }
7759 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7760 "Routing options are");
1da177e4 7761#ifdef CONFIG_QETH_IPV6
500f83ab
UB		 7762 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7763 "Routing options are");
1da177e4 7764#endif
500f83ab
UB		 7765 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7766 QETH_CHECKSUM_DEFAULT,
7767 "Checksumming options are");
7768 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7769 QETH_TR_BROADCAST_ALLRINGS,
7770 "Broadcast mode options are");
7771 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7772 QETH_TR_MACADDR_NONCANONICAL,
7773 "Canonical MAC addr options are");
7774 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7775 "Broadcast faking options are");
7776 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7777 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7778 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
1da177e4
LT		 7779}
7780
7781
7782static int
05e08a2a 7783__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1da177e4
LT		 7784{
7785 struct qeth_card *card = gdev->dev.driver_data;
7786 int rc = 0;
7787 enum qeth_card_states recover_flag;
7788
7789 BUG_ON(!card);
7790 QETH_DBF_TEXT(setup ,2, "setonlin");
7791 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7792
7793 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7794 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7795 PRINT_WARN("set_online of card %s interrupted by user!\n",
7796 CARD_BUS_ID(card));
7797 return -ERESTARTSYS;
7798 }
7799
7800 recover_flag = card->state;
7801 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7802 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7803 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7804 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7805 return -EIO;
7806 }
7807
500f83ab 7808 qeth_make_parameters_consistent(card);
1da177e4
LT		 7809
7810 if ((rc = qeth_hardsetup_card(card))){
7811 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7812 goto out_remove;
7813 }
7814 card->state = CARD_STATE_HARDSETUP;
7815
7816 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7817 rc = qeth_get_unique_id(card);
7818
7819 if (rc && card->options.layer2 == 0) {
7820 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7821 goto out_remove;
7822 }
7823 qeth_print_status_message(card);
7824 if ((rc = qeth_register_netdev(card))){
7825 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7826 goto out_remove;
7827 }
7828 if ((rc = qeth_softsetup_card(card))){
7829 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7830 goto out_remove;
7831 }
7832 card->state = CARD_STATE_SOFTSETUP;
7833
7834 if ((rc = qeth_init_qdio_queues(card))){
7835 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7836 goto out_remove;
7837 }
7838/*maybe it was set offline without ifconfig down
7839 * we can also use this state for recovery purposes*/
7840 qeth_set_allowed_threads(card, 0xffffffff, 0);
7841 if (recover_flag == CARD_STATE_RECOVER)
05e08a2a 7842 qeth_start_again(card, recovery_mode);
1da177e4
LT		 7843 qeth_notify_processes();
7844 return 0;
7845out_remove:
7846 card->use_hard_stop = 1;
05e08a2a 7847 qeth_stop_card(card, 0);
1da177e4
LT		 7848 ccw_device_set_offline(CARD_DDEV(card));
7849 ccw_device_set_offline(CARD_WDEV(card));
7850 ccw_device_set_offline(CARD_RDEV(card));
7851 if (recover_flag == CARD_STATE_RECOVER)
7852 card->state = CARD_STATE_RECOVER;
7853 else
7854 card->state = CARD_STATE_DOWN;
7855 return -ENODEV;
7856}
7857
05e08a2a
FP		 7858static int
7859qeth_set_online(struct ccwgroup_device *gdev)
7860{
7861 return __qeth_set_online(gdev, 0);
7862}
7863
1da177e4
LT		 7864static struct ccw_device_id qeth_ids[] = {
7865 {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7866 {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
500f83ab 7867 {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
1da177e4
LT		 7868 {},
7869};
7870MODULE_DEVICE_TABLE(ccw, qeth_ids);
7871
7872struct device *qeth_root_dev = NULL;
7873
7874struct ccwgroup_driver qeth_ccwgroup_driver = {
7875 .owner = THIS_MODULE,
7876 .name = "qeth",
7877 .driver_id = 0xD8C5E3C8,
7878 .probe = qeth_probe_device,
7879 .remove = qeth_remove_device,
7880 .set_online = qeth_set_online,
7881 .set_offline = qeth_set_offline,
7882};
7883
7884struct ccw_driver qeth_ccw_driver = {
7885 .name = "qeth",
7886 .ids = qeth_ids,
7887 .probe = ccwgroup_probe_ccwdev,
7888 .remove = ccwgroup_remove_ccwdev,
7889};
7890
7891
7892static void
7893qeth_unregister_dbf_views(void)
7894{
7895 if (qeth_dbf_setup)
7896 debug_unregister(qeth_dbf_setup);
7897 if (qeth_dbf_qerr)
7898 debug_unregister(qeth_dbf_qerr);
7899 if (qeth_dbf_sense)
7900 debug_unregister(qeth_dbf_sense);
7901 if (qeth_dbf_misc)
7902 debug_unregister(qeth_dbf_misc);
7903 if (qeth_dbf_data)
7904 debug_unregister(qeth_dbf_data);
7905 if (qeth_dbf_control)
7906 debug_unregister(qeth_dbf_control);
7907 if (qeth_dbf_trace)
7908 debug_unregister(qeth_dbf_trace);
7909}
7910static int
7911qeth_register_dbf_views(void)
7912{
7913 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
66a464db 7914 QETH_DBF_SETUP_PAGES,
1da177e4
LT		 7915 QETH_DBF_SETUP_NR_AREAS,
7916 QETH_DBF_SETUP_LEN);
7917 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
66a464db 7918 QETH_DBF_MISC_PAGES,
1da177e4
LT		 7919 QETH_DBF_MISC_NR_AREAS,
7920 QETH_DBF_MISC_LEN);
7921 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
66a464db 7922 QETH_DBF_DATA_PAGES,
1da177e4
LT		 7923 QETH_DBF_DATA_NR_AREAS,
7924 QETH_DBF_DATA_LEN);
7925 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
66a464db 7926 QETH_DBF_CONTROL_PAGES,
1da177e4
LT		 7927 QETH_DBF_CONTROL_NR_AREAS,
7928 QETH_DBF_CONTROL_LEN);
7929 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
66a464db 7930 QETH_DBF_SENSE_PAGES,
1da177e4
LT		 7931 QETH_DBF_SENSE_NR_AREAS,
7932 QETH_DBF_SENSE_LEN);
7933 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
66a464db 7934 QETH_DBF_QERR_PAGES,
1da177e4
LT		 7935 QETH_DBF_QERR_NR_AREAS,
7936 QETH_DBF_QERR_LEN);
7937 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
66a464db 7938 QETH_DBF_TRACE_PAGES,
1da177e4
LT		 7939 QETH_DBF_TRACE_NR_AREAS,
7940 QETH_DBF_TRACE_LEN);
7941
7942 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
7943 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
7944 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
7945 (qeth_dbf_trace == NULL)) {
7946 qeth_unregister_dbf_views();
7947 return -ENOMEM;
7948 }
7949 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7950 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7951
7952 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7953 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7954
7955 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7956 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7957
7958 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7959 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7960
7961 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
7962 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
7963
7964 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
7965 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
7966
7967 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
7968 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
7969
7970 return 0;
7971}
7972
7973#ifdef CONFIG_QETH_IPV6
7974extern struct neigh_table arp_tbl;
7975static struct neigh_ops *arp_direct_ops;
7976static int (*qeth_old_arp_constructor) (struct neighbour *);
7977
7978static struct neigh_ops arp_direct_ops_template = {
7979 .family = AF_INET,
7980 .destructor = NULL,
7981 .solicit = NULL,
7982 .error_report = NULL,
7983 .output = dev_queue_xmit,
7984 .connected_output = dev_queue_xmit,
7985 .hh_output = dev_queue_xmit,
7986 .queue_xmit = dev_queue_xmit
7987};
7988
7989static int
7990qeth_arp_constructor(struct neighbour *neigh)
7991{
7992 struct net_device *dev = neigh->dev;
7993 struct in_device *in_dev;
7994 struct neigh_parms *parms;
7995 struct qeth_card *card;
7996
7997 card = qeth_get_card_from_dev(dev);
7998 if (card == NULL)
7999 goto out;
8000 if((card->options.layer2) ||
8001 (card->dev->hard_header == qeth_fake_header))
8002 goto out;
8003
8004 rcu_read_lock();
e5ed6399 8005 in_dev = __in_dev_get_rcu(dev);
1da177e4
LT		 8006 if (in_dev == NULL) {
8007 rcu_read_unlock();
8008 return -EINVAL;
8009 }
8010
8011 parms = in_dev->arp_parms;
8012 __neigh_parms_put(neigh->parms);
8013 neigh->parms = neigh_parms_clone(parms);
8014 rcu_read_unlock();
8015
8016 neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8017 neigh->nud_state = NUD_NOARP;
8018 neigh->ops = arp_direct_ops;
8019 neigh->output = neigh->ops->queue_xmit;
8020 return 0;
8021out:
8022 return qeth_old_arp_constructor(neigh);
8023}
8024#endif /*CONFIG_QETH_IPV6*/
8025
8026/*
8027 * IP address takeover related functions
8028 */
8029static void
8030qeth_clear_ipato_list(struct qeth_card *card)
8031{
8032 struct qeth_ipato_entry *ipatoe, *tmp;
8033 unsigned long flags;
8034
8035 spin_lock_irqsave(&card->ip_lock, flags);
8036 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8037 list_del(&ipatoe->entry);
8038 kfree(ipatoe);
8039 }
8040 spin_unlock_irqrestore(&card->ip_lock, flags);
8041}
8042
8043int
8044qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8045{
8046 struct qeth_ipato_entry *ipatoe;
8047 unsigned long flags;
8048 int rc = 0;
8049
8050 QETH_DBF_TEXT(trace, 2, "addipato");
8051 spin_lock_irqsave(&card->ip_lock, flags);
8052 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8053 if (ipatoe->proto != new->proto)
8054 continue;
8055 if (!memcmp(ipatoe->addr, new->addr,
8056 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8057 (ipatoe->mask_bits == new->mask_bits)){
8058 PRINT_WARN("ipato entry already exists!\n");
8059 rc = -EEXIST;
8060 break;
8061 }
8062 }
8063 if (!rc) {
8064 list_add_tail(&new->entry, &card->ipato.entries);
8065 }
8066 spin_unlock_irqrestore(&card->ip_lock, flags);
8067 return rc;
8068}
8069
8070void
8071qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8072 u8 *addr, int mask_bits)
8073{
8074 struct qeth_ipato_entry *ipatoe, *tmp;
8075 unsigned long flags;
8076
8077 QETH_DBF_TEXT(trace, 2, "delipato");
8078 spin_lock_irqsave(&card->ip_lock, flags);
8079 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8080 if (ipatoe->proto != proto)
8081 continue;
8082 if (!memcmp(ipatoe->addr, addr,
8083 (proto == QETH_PROT_IPV4)? 4:16) &&
8084 (ipatoe->mask_bits == mask_bits)){
8085 list_del(&ipatoe->entry);
8086 kfree(ipatoe);
8087 }
8088 }
8089 spin_unlock_irqrestore(&card->ip_lock, flags);
8090}
8091
8092static inline void
8093qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8094{
8095 int i, j;
8096 u8 octet;
8097
8098 for (i = 0; i < len; ++i){
8099 octet = addr[i];
8100 for (j = 7; j >= 0; --j){
8101 bits[i*8 + j] = octet & 1;
8102 octet >>= 1;
8103 }
8104 }
8105}
8106
8107static int
8108qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8109{
8110 struct qeth_ipato_entry *ipatoe;
8111 u8 addr_bits[128] = {0, };
8112 u8 ipatoe_bits[128] = {0, };
8113 int rc = 0;
8114
8115 if (!card->ipato.enabled)
8116 return 0;
8117
8118 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8119 (addr->proto == QETH_PROT_IPV4)? 4:16);
8120 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8121 if (addr->proto != ipatoe->proto)
8122 continue;
8123 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8124 (ipatoe->proto==QETH_PROT_IPV4) ?
8125 4:16);
8126 if (addr->proto == QETH_PROT_IPV4)
8127 rc = !memcmp(addr_bits, ipatoe_bits,
8128 min(32, ipatoe->mask_bits));
8129 else
8130 rc = !memcmp(addr_bits, ipatoe_bits,
8131 min(128, ipatoe->mask_bits));
8132 if (rc)
8133 break;
8134 }
8135 /* invert? */
8136 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8137 rc = !rc;
8138 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8139 rc = !rc;
8140
8141 return rc;
8142}
8143
8144/*
8145 * VIPA related functions
8146 */
8147int
8148qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8149 const u8 *addr)
8150{
8151 struct qeth_ipaddr *ipaddr;
8152 unsigned long flags;
8153 int rc = 0;
8154
8155 ipaddr = qeth_get_addr_buffer(proto);
8156 if (ipaddr){
8157 if (proto == QETH_PROT_IPV4){
8158 QETH_DBF_TEXT(trace, 2, "addvipa4");
8159 memcpy(&ipaddr->u.a4.addr, addr, 4);
8160 ipaddr->u.a4.mask = 0;
8161#ifdef CONFIG_QETH_IPV6
8162 } else if (proto == QETH_PROT_IPV6){
8163 QETH_DBF_TEXT(trace, 2, "addvipa6");
8164 memcpy(&ipaddr->u.a6.addr, addr, 16);
8165 ipaddr->u.a6.pfxlen = 0;
8166#endif
8167 }
8168 ipaddr->type = QETH_IP_TYPE_VIPA;
8169 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8170 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8171 } else
8172 return -ENOMEM;
8173 spin_lock_irqsave(&card->ip_lock, flags);
8174 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8175 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8176 rc = -EEXIST;
8177 spin_unlock_irqrestore(&card->ip_lock, flags);
8178 if (rc){
8179 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8180 return rc;
8181 }
8182 if (!qeth_add_ip(card, ipaddr))
8183 kfree(ipaddr);
8184 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8185 schedule_work(&card->kernel_thread_starter);
8186 return rc;
8187}
8188
8189void
8190qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8191 const u8 *addr)
8192{
8193 struct qeth_ipaddr *ipaddr;
8194
8195 ipaddr = qeth_get_addr_buffer(proto);
8196 if (ipaddr){
8197 if (proto == QETH_PROT_IPV4){
8198 QETH_DBF_TEXT(trace, 2, "delvipa4");
8199 memcpy(&ipaddr->u.a4.addr, addr, 4);
8200 ipaddr->u.a4.mask = 0;
8201#ifdef CONFIG_QETH_IPV6
8202 } else if (proto == QETH_PROT_IPV6){
8203 QETH_DBF_TEXT(trace, 2, "delvipa6");
8204 memcpy(&ipaddr->u.a6.addr, addr, 16);
8205 ipaddr->u.a6.pfxlen = 0;
8206#endif
8207 }
8208 ipaddr->type = QETH_IP_TYPE_VIPA;
8209 } else
8210 return;
8211 if (!qeth_delete_ip(card, ipaddr))
8212 kfree(ipaddr);
8213 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8214 schedule_work(&card->kernel_thread_starter);
8215}
8216
8217/*
8218 * proxy ARP related functions
8219 */
8220int
8221qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8222 const u8 *addr)
8223{
8224 struct qeth_ipaddr *ipaddr;
8225 unsigned long flags;
8226 int rc = 0;
8227
8228 ipaddr = qeth_get_addr_buffer(proto);
8229 if (ipaddr){
8230 if (proto == QETH_PROT_IPV4){
8231 QETH_DBF_TEXT(trace, 2, "addrxip4");
8232 memcpy(&ipaddr->u.a4.addr, addr, 4);
8233 ipaddr->u.a4.mask = 0;
8234#ifdef CONFIG_QETH_IPV6
8235 } else if (proto == QETH_PROT_IPV6){
8236 QETH_DBF_TEXT(trace, 2, "addrxip6");
8237 memcpy(&ipaddr->u.a6.addr, addr, 16);
8238 ipaddr->u.a6.pfxlen = 0;
8239#endif
8240 }
8241 ipaddr->type = QETH_IP_TYPE_RXIP;
8242 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8243 ipaddr->del_flags = 0;
8244 } else
8245 return -ENOMEM;
8246 spin_lock_irqsave(&card->ip_lock, flags);
8247 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8248 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8249 rc = -EEXIST;
8250 spin_unlock_irqrestore(&card->ip_lock, flags);
8251 if (rc){
8252 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8253 return rc;
8254 }
8255 if (!qeth_add_ip(card, ipaddr))
8256 kfree(ipaddr);
8257 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8258 schedule_work(&card->kernel_thread_starter);
8259 return 0;
8260}
8261
8262void
8263qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8264 const u8 *addr)
8265{
8266 struct qeth_ipaddr *ipaddr;
8267
8268 ipaddr = qeth_get_addr_buffer(proto);
8269 if (ipaddr){
8270 if (proto == QETH_PROT_IPV4){
8271 QETH_DBF_TEXT(trace, 2, "addrxip4");
8272 memcpy(&ipaddr->u.a4.addr, addr, 4);
8273 ipaddr->u.a4.mask = 0;
8274#ifdef CONFIG_QETH_IPV6
8275 } else if (proto == QETH_PROT_IPV6){
8276 QETH_DBF_TEXT(trace, 2, "addrxip6");
8277 memcpy(&ipaddr->u.a6.addr, addr, 16);
8278 ipaddr->u.a6.pfxlen = 0;
8279#endif
8280 }
8281 ipaddr->type = QETH_IP_TYPE_RXIP;
8282 } else
8283 return;
8284 if (!qeth_delete_ip(card, ipaddr))
8285 kfree(ipaddr);
8286 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8287 schedule_work(&card->kernel_thread_starter);
8288}
8289
8290/**
8291 * IP event handler
8292 */
8293static int
8294qeth_ip_event(struct notifier_block *this,
8295 unsigned long event,void *ptr)
8296{
8297 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8298 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8299 struct qeth_ipaddr *addr;
8300 struct qeth_card *card;
8301
8302 QETH_DBF_TEXT(trace,3,"ipevent");
8303 card = qeth_get_card_from_dev(dev);
8304 if (!card)
8305 return NOTIFY_DONE;
8306 if (card->options.layer2)
8307 return NOTIFY_DONE;
8308
8309 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8310 if (addr != NULL) {
8311 addr->u.a4.addr = ifa->ifa_address;
8312 addr->u.a4.mask = ifa->ifa_mask;
8313 addr->type = QETH_IP_TYPE_NORMAL;
8314 } else
8315 goto out;
8316
8317 switch(event) {
8318 case NETDEV_UP:
8319 if (!qeth_add_ip(card, addr))
8320 kfree(addr);
8321 break;
8322 case NETDEV_DOWN:
8323 if (!qeth_delete_ip(card, addr))
8324 kfree(addr);
8325 break;
8326 default:
8327 break;
8328 }
8329 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8330 schedule_work(&card->kernel_thread_starter);
8331out:
8332 return NOTIFY_DONE;
8333}
8334
8335static struct notifier_block qeth_ip_notifier = {
8336 qeth_ip_event,
8337 0
8338};
8339
8340#ifdef CONFIG_QETH_IPV6
8341/**
8342 * IPv6 event handler
8343 */
8344static int
8345qeth_ip6_event(struct notifier_block *this,
8346 unsigned long event,void *ptr)
8347{
8348
8349 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8350 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8351 struct qeth_ipaddr *addr;
8352 struct qeth_card *card;
8353
8354 QETH_DBF_TEXT(trace,3,"ip6event");
8355
8356 card = qeth_get_card_from_dev(dev);
8357 if (!card)
8358 return NOTIFY_DONE;
8359 if (!qeth_is_supported(card, IPA_IPV6))
8360 return NOTIFY_DONE;
8361
8362 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8363 if (addr != NULL) {
8364 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8365 addr->u.a6.pfxlen = ifa->prefix_len;
8366 addr->type = QETH_IP_TYPE_NORMAL;
8367 } else
8368 goto out;
8369
8370 switch(event) {
8371 case NETDEV_UP:
8372 if (!qeth_add_ip(card, addr))
8373 kfree(addr);
8374 break;
8375 case NETDEV_DOWN:
8376 if (!qeth_delete_ip(card, addr))
8377 kfree(addr);
8378 break;
8379 default:
8380 break;
8381 }
8382 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8383 schedule_work(&card->kernel_thread_starter);
8384out:
8385 return NOTIFY_DONE;
8386}
8387
8388static struct notifier_block qeth_ip6_notifier = {
8389 qeth_ip6_event,
8390 0
8391};
8392#endif
8393
8394static int
66aea23f 8395__qeth_reboot_event_card(struct device *dev, void *data)
1da177e4 8396{
1da177e4
LT		 8397 struct qeth_card *card;
8398
66aea23f
CH		 8399 card = (struct qeth_card *) dev->driver_data;
8400 qeth_clear_ip_list(card, 0, 0);
8401 qeth_qdio_clear_card(card, 0);
8402 return 0;
8403}
8404
8405static int
8406qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8407{
8408
8409 driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8410 __qeth_reboot_event_card);
1da177e4
LT		 8411 return NOTIFY_DONE;
8412}
8413
8414
8415static struct notifier_block qeth_reboot_notifier = {
8416 qeth_reboot_event,
8417 0
8418};
8419
8420static int
8421qeth_register_notifiers(void)
8422{
8423 int r;
8424
8425 QETH_DBF_TEXT(trace,5,"regnotif");
8426 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8427 return r;
8428 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8429 goto out_reboot;
8430#ifdef CONFIG_QETH_IPV6
8431 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8432 goto out_ipv4;
8433#endif
8434 return 0;
8435
8436#ifdef CONFIG_QETH_IPV6
8437out_ipv4:
8438 unregister_inetaddr_notifier(&qeth_ip_notifier);
8439#endif
8440out_reboot:
8441 unregister_reboot_notifier(&qeth_reboot_notifier);
8442 return r;
8443}
8444
8445/**
8446 * unregister all event notifiers
8447 */
8448static void
8449qeth_unregister_notifiers(void)
8450{
8451
8452 QETH_DBF_TEXT(trace,5,"unregnot");
8453 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8454 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8455#ifdef CONFIG_QETH_IPV6
8456 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8457#endif /* QETH_IPV6 */
8458
8459}
8460
8461#ifdef CONFIG_QETH_IPV6
8462static int
8463qeth_ipv6_init(void)
8464{
8465 qeth_old_arp_constructor = arp_tbl.constructor;
8466 write_lock(&arp_tbl.lock);
8467 arp_tbl.constructor = qeth_arp_constructor;
8468 write_unlock(&arp_tbl.lock);
8469
8470 arp_direct_ops = (struct neigh_ops*)
8471 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8472 if (!arp_direct_ops)
8473 return -ENOMEM;
8474
8475 memcpy(arp_direct_ops, &arp_direct_ops_template,
8476 sizeof(struct neigh_ops));
8477
8478 return 0;
8479}
8480
8481static void
8482qeth_ipv6_uninit(void)
8483{
8484 write_lock(&arp_tbl.lock);
8485 arp_tbl.constructor = qeth_old_arp_constructor;
8486 write_unlock(&arp_tbl.lock);
8487 kfree(arp_direct_ops);
8488}
8489#endif /* CONFIG_QETH_IPV6 */
8490
8491static void
8492qeth_sysfs_unregister(void)
8493{
8494 qeth_remove_driver_attributes();
8495 ccw_driver_unregister(&qeth_ccw_driver);
8496 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8497 s390_root_dev_unregister(qeth_root_dev);
8498}
8499/**
8500 * register qeth at sysfs
8501 */
8502static int
8503qeth_sysfs_register(void)
8504{
8505 int rc=0;
8506
8507 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8508 if (rc)
8509 return rc;
8510 rc = ccw_driver_register(&qeth_ccw_driver);
8511 if (rc)
8512 return rc;
8513 rc = qeth_create_driver_attributes();
8514 if (rc)
8515 return rc;
8516 qeth_root_dev = s390_root_dev_register("qeth");
8517 if (IS_ERR(qeth_root_dev)) {
8518 rc = PTR_ERR(qeth_root_dev);
8519 return rc;
8520 }
8521 return 0;
8522}
8523
8524/***
8525 * init function
8526 */
8527static int __init
8528qeth_init(void)
8529{
8530 int rc=0;
8531
1da177e4
LT		 8532 PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
8533 version, VERSION_QETH_C, VERSION_QETH_H,
8534 VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
8535 VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
8536 VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
8537 QETH_VERSION_VLAN);
8538
8539 INIT_LIST_HEAD(&qeth_card_list.list);
8540 INIT_LIST_HEAD(&qeth_notify_list);
8541 spin_lock_init(&qeth_notify_lock);
8542 rwlock_init(&qeth_card_list.rwlock);
8543
8544 if (qeth_register_dbf_views())
8545 goto out_err;
8546 if (qeth_sysfs_register())
8547 goto out_sysfs;
8548
8549#ifdef CONFIG_QETH_IPV6
8550 if (qeth_ipv6_init()) {
8551 PRINT_ERR("Out of memory during ipv6 init.\n");
8552 goto out_sysfs;
8553 }
8554#endif /* QETH_IPV6 */
8555 if (qeth_register_notifiers())
8556 goto out_ipv6;
8557 if (qeth_create_procfs_entries())
8558 goto out_notifiers;
8559
8560 return rc;
8561
8562out_notifiers:
8563 qeth_unregister_notifiers();
8564out_ipv6:
8565#ifdef CONFIG_QETH_IPV6
8566 qeth_ipv6_uninit();
8567#endif /* QETH_IPV6 */
8568out_sysfs:
8569 qeth_sysfs_unregister();
8570 qeth_unregister_dbf_views();
8571out_err:
8572 PRINT_ERR("Initialization failed");
8573 return rc;
8574}
8575
8576static void
8577__exit qeth_exit(void)
8578{
8579 struct qeth_card *card, *tmp;
8580 unsigned long flags;
8581
8582 QETH_DBF_TEXT(trace,1, "cleanup.");
8583
8584 /*
8585 * Weed would not need to clean up our devices here, because the
8586 * common device layer calls qeth_remove_device for each device
8587 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8588 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8589 * qeth_remove_device called by the common device layer would otherwise
8590 * do a "hard" shutdown (card->use_hard_stop is set to one in
8591 * qeth_remove_device).
8592 */
8593again:
8594 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8595 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8596 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8597 qeth_set_offline(card->gdev);
8598 qeth_remove_device(card->gdev);
8599 goto again;
8600 }
8601 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8602#ifdef CONFIG_QETH_IPV6
8603 qeth_ipv6_uninit();
8604#endif
8605 qeth_unregister_notifiers();
8606 qeth_remove_procfs_entries();
8607 qeth_sysfs_unregister();
8608 qeth_unregister_dbf_views();
8609 printk("qeth: removed\n");
8610}
8611
500f83ab
UB		 8612EXPORT_SYMBOL(qeth_osn_register);
8613EXPORT_SYMBOL(qeth_osn_deregister);
8614EXPORT_SYMBOL(qeth_osn_assist);
1da177e4
LT		 8615module_init(qeth_init);
8616module_exit(qeth_exit);
8617MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
8618MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8619 "Copyright 2000,2003 IBM Corporation\n");
8620
8621MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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