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Remove obsolete #include <linux/config.h>
[mirror_ubuntu-jammy-kernel.git] / drivers / s390 / net / qeth_main.c
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1da177e4 1/*
e018ba1f 2 * linux/drivers/s390/net/qeth_main.c
1da177e4
LT		 3 *
4 * Linux on zSeries OSA Express and HiperSockets support
5 *
6 * Copyright 2000,2003 IBM Corporation
7 *
8 * Author(s): Original Code written by
9 * Utz Bacher (utz.bacher@de.ibm.com)
10 * Rewritten by
1387780f 11 * Frank Pavlic (fpavlic@de.ibm.com) and
1da177e4
LT		 12 * Thomas Spatzier <tspat@de.ibm.com>
13 *
1da177e4
LT		 14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
1da177e4 29
1da177e4
LT		 30#include <linux/module.h>
31#include <linux/moduleparam.h>
32#include <linux/string.h>
33#include <linux/errno.h>
34#include <linux/mm.h>
35#include <linux/ip.h>
36#include <linux/inetdevice.h>
37#include <linux/netdevice.h>
38#include <linux/sched.h>
39#include <linux/workqueue.h>
40#include <linux/kernel.h>
41#include <linux/slab.h>
42#include <linux/interrupt.h>
43#include <linux/tcp.h>
44#include <linux/icmp.h>
45#include <linux/skbuff.h>
46#include <linux/in.h>
47#include <linux/igmp.h>
48#include <linux/init.h>
49#include <linux/reboot.h>
50#include <linux/mii.h>
51#include <linux/rcupdate.h>
52#include <linux/ethtool.h>
53
54#include <net/arp.h>
55#include <net/ip.h>
56#include <net/route.h>
57
58#include <asm/ebcdic.h>
59#include <asm/io.h>
60#include <asm/qeth.h>
61#include <asm/timex.h>
62#include <asm/semaphore.h>
63#include <asm/uaccess.h>
cfb1b555 64#include <asm/s390_rdev.h>
1da177e4
LT		 65
66#include "qeth.h"
67#include "qeth_mpc.h"
68#include "qeth_fs.h"
69#include "qeth_eddp.h"
70#include "qeth_tso.h"
71
1da177e4
LT		 72static const char *version = "qeth S/390 OSA-Express driver";
73
74/**
75 * Debug Facility Stuff
76 */
77static debug_info_t *qeth_dbf_setup = NULL;
78static debug_info_t *qeth_dbf_data = NULL;
79static debug_info_t *qeth_dbf_misc = NULL;
80static debug_info_t *qeth_dbf_control = NULL;
81debug_info_t *qeth_dbf_trace = NULL;
82static debug_info_t *qeth_dbf_sense = NULL;
83static debug_info_t *qeth_dbf_qerr = NULL;
84
85DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
86
87/**
88 * some more definitions and declarations
89 */
90static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
91
92/* list of our cards */
93struct qeth_card_list_struct qeth_card_list;
94/*process list want to be notified*/
95spinlock_t qeth_notify_lock;
96struct list_head qeth_notify_list;
97
98static void qeth_send_control_data_cb(struct qeth_channel *,
99 struct qeth_cmd_buffer *);
100
101/**
102 * here we go with function implementation
103 */
104static void
105qeth_init_qdio_info(struct qeth_card *card);
106
107static int
108qeth_init_qdio_queues(struct qeth_card *card);
109
110static int
111qeth_alloc_qdio_buffers(struct qeth_card *card);
112
113static void
114qeth_free_qdio_buffers(struct qeth_card *);
115
116static void
117qeth_clear_qdio_buffers(struct qeth_card *);
118
119static void
120qeth_clear_ip_list(struct qeth_card *, int, int);
121
122static void
123qeth_clear_ipacmd_list(struct qeth_card *);
124
125static int
126qeth_qdio_clear_card(struct qeth_card *, int);
127
128static void
129qeth_clear_working_pool_list(struct qeth_card *);
130
131static void
132qeth_clear_cmd_buffers(struct qeth_channel *);
133
134static int
135qeth_stop(struct net_device *);
136
137static void
138qeth_clear_ipato_list(struct qeth_card *);
139
140static int
141qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
142
143static void
144qeth_irq_tasklet(unsigned long);
145
146static int
147qeth_set_online(struct ccwgroup_device *);
148
05e08a2a
FP		 149static int
150__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
151
1da177e4
LT		 152static struct qeth_ipaddr *
153qeth_get_addr_buffer(enum qeth_prot_versions);
154
155static void
156qeth_set_multicast_list(struct net_device *);
157
6c951b90
FP		 158static void
159qeth_setadp_promisc_mode(struct qeth_card *);
160
1da177e4
LT		 161static void
162qeth_notify_processes(void)
163{
164 /*notify all registered processes */
165 struct qeth_notify_list_struct *n_entry;
166
167 QETH_DBF_TEXT(trace,3,"procnoti");
168 spin_lock(&qeth_notify_lock);
169 list_for_each_entry(n_entry, &qeth_notify_list, list) {
170 send_sig(n_entry->signum, n_entry->task, 1);
171 }
172 spin_unlock(&qeth_notify_lock);
173
174}
175int
176qeth_notifier_unregister(struct task_struct *p)
177{
178 struct qeth_notify_list_struct *n_entry, *tmp;
179
180 QETH_DBF_TEXT(trace, 2, "notunreg");
181 spin_lock(&qeth_notify_lock);
182 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
183 if (n_entry->task == p) {
184 list_del(&n_entry->list);
185 kfree(n_entry);
186 goto out;
187 }
188 }
189out:
190 spin_unlock(&qeth_notify_lock);
191 return 0;
192}
193int
194qeth_notifier_register(struct task_struct *p, int signum)
195{
196 struct qeth_notify_list_struct *n_entry;
197
1da177e4
LT		 198 /*check first if entry already exists*/
199 spin_lock(&qeth_notify_lock);
200 list_for_each_entry(n_entry, &qeth_notify_list, list) {
201 if (n_entry->task == p) {
202 n_entry->signum = signum;
203 spin_unlock(&qeth_notify_lock);
204 return 0;
205 }
206 }
207 spin_unlock(&qeth_notify_lock);
208
209 n_entry = (struct qeth_notify_list_struct *)
210 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
211 if (!n_entry)
212 return -ENOMEM;
213 n_entry->task = p;
214 n_entry->signum = signum;
215 spin_lock(&qeth_notify_lock);
216 list_add(&n_entry->list,&qeth_notify_list);
217 spin_unlock(&qeth_notify_lock);
218 return 0;
219}
220
221
222/**
223 * free channel command buffers
224 */
225static void
226qeth_clean_channel(struct qeth_channel *channel)
227{
228 int cnt;
229
230 QETH_DBF_TEXT(setup, 2, "freech");
231 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
232 kfree(channel->iob[cnt].data);
233}
234
235/**
236 * free card
237 */
238static void
239qeth_free_card(struct qeth_card *card)
240{
241
242 QETH_DBF_TEXT(setup, 2, "freecrd");
243 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
244 qeth_clean_channel(&card->read);
245 qeth_clean_channel(&card->write);
246 if (card->dev)
247 free_netdev(card->dev);
248 qeth_clear_ip_list(card, 0, 0);
249 qeth_clear_ipato_list(card);
250 kfree(card->ip_tbd_list);
251 qeth_free_qdio_buffers(card);
252 kfree(card);
253}
254
255/**
256 * alloc memory for command buffer per channel
257 */
258static int
259qeth_setup_channel(struct qeth_channel *channel)
260{
261 int cnt;
262
263 QETH_DBF_TEXT(setup, 2, "setupch");
264 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
265 channel->iob[cnt].data = (char *)
266 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
267 if (channel->iob[cnt].data == NULL)
268 break;
269 channel->iob[cnt].state = BUF_STATE_FREE;
270 channel->iob[cnt].channel = channel;
271 channel->iob[cnt].callback = qeth_send_control_data_cb;
272 channel->iob[cnt].rc = 0;
273 }
274 if (cnt < QETH_CMD_BUFFER_NO) {
275 while (cnt-- > 0)
276 kfree(channel->iob[cnt].data);
277 return -ENOMEM;
278 }
279 channel->buf_no = 0;
280 channel->io_buf_no = 0;
281 atomic_set(&channel->irq_pending, 0);
282 spin_lock_init(&channel->iob_lock);
283
284 init_waitqueue_head(&channel->wait_q);
285 channel->irq_tasklet.data = (unsigned long) channel;
286 channel->irq_tasklet.func = qeth_irq_tasklet;
287 return 0;
288}
289
290/**
291 * alloc memory for card structure
292 */
293static struct qeth_card *
294qeth_alloc_card(void)
295{
296 struct qeth_card *card;
297
298 QETH_DBF_TEXT(setup, 2, "alloccrd");
88abaab4 299 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1da177e4
LT		 300 if (!card)
301 return NULL;
302 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1da177e4
LT		 303 if (qeth_setup_channel(&card->read)) {
304 kfree(card);
305 return NULL;
306 }
307 if (qeth_setup_channel(&card->write)) {
308 qeth_clean_channel(&card->read);
309 kfree(card);
310 return NULL;
311 }
312 return card;
313}
314
315static long
316__qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
317{
318 if (!IS_ERR(irb))
319 return 0;
320
321 switch (PTR_ERR(irb)) {
322 case -EIO:
323 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
324 QETH_DBF_TEXT(trace, 2, "ckirberr");
325 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
326 break;
327 case -ETIMEDOUT:
328 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
329 QETH_DBF_TEXT(trace, 2, "ckirberr");
330 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
331 break;
332 default:
333 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
334 cdev->dev.bus_id);
335 QETH_DBF_TEXT(trace, 2, "ckirberr");
336 QETH_DBF_TEXT(trace, 2, " rc???");
337 }
338 return PTR_ERR(irb);
339}
340
341static int
342qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
343{
344 int dstat,cstat;
345 char *sense;
346
347 sense = (char *) irb->ecw;
348 cstat = irb->scsw.cstat;
349 dstat = irb->scsw.dstat;
350
351 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
352 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
353 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
354 QETH_DBF_TEXT(trace,2, "CGENCHK");
355 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
356 cdev->dev.bus_id, dstat, cstat);
357 HEXDUMP16(WARN, "irb: ", irb);
358 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
359 return 1;
360 }
361
362 if (dstat & DEV_STAT_UNIT_CHECK) {
363 if (sense[SENSE_RESETTING_EVENT_BYTE] &
364 SENSE_RESETTING_EVENT_FLAG) {
365 QETH_DBF_TEXT(trace,2,"REVIND");
366 return 1;
367 }
368 if (sense[SENSE_COMMAND_REJECT_BYTE] &
369 SENSE_COMMAND_REJECT_FLAG) {
370 QETH_DBF_TEXT(trace,2,"CMDREJi");
371 return 0;
372 }
373 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
374 QETH_DBF_TEXT(trace,2,"AFFE");
375 return 1;
376 }
377 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
378 QETH_DBF_TEXT(trace,2,"ZEROSEN");
379 return 0;
380 }
381 QETH_DBF_TEXT(trace,2,"DGENCHK");
382 return 1;
383 }
384 return 0;
385}
386static int qeth_issue_next_read(struct qeth_card *);
387
388/**
389 * interrupt handler
390 */
391static void
392qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
393{
394 int rc;
395 int cstat,dstat;
396 struct qeth_cmd_buffer *buffer;
397 struct qeth_channel *channel;
398 struct qeth_card *card;
399
400 QETH_DBF_TEXT(trace,5,"irq");
401
402 if (__qeth_check_irb_error(cdev, irb))
403 return;
404 cstat = irb->scsw.cstat;
405 dstat = irb->scsw.dstat;
406
407 card = CARD_FROM_CDEV(cdev);
408 if (!card)
409 return;
410
411 if (card->read.ccwdev == cdev){
412 channel = &card->read;
413 QETH_DBF_TEXT(trace,5,"read");
414 } else if (card->write.ccwdev == cdev) {
415 channel = &card->write;
416 QETH_DBF_TEXT(trace,5,"write");
417 } else {
418 channel = &card->data;
419 QETH_DBF_TEXT(trace,5,"data");
420 }
421 atomic_set(&channel->irq_pending, 0);
422
423 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
424 channel->state = CH_STATE_STOPPED;
425
426 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
427 channel->state = CH_STATE_HALTED;
428
429 /*let's wake up immediately on data channel*/
430 if ((channel == &card->data) && (intparm != 0))
431 goto out;
432
433 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
434 QETH_DBF_TEXT(trace, 6, "clrchpar");
435 /* we don't have to handle this further */
436 intparm = 0;
437 }
438 if (intparm == QETH_HALT_CHANNEL_PARM) {
439 QETH_DBF_TEXT(trace, 6, "hltchpar");
440 /* we don't have to handle this further */
441 intparm = 0;
442 }
443 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
444 (dstat & DEV_STAT_UNIT_CHECK) ||
445 (cstat)) {
446 if (irb->esw.esw0.erw.cons) {
447 /* TODO: we should make this s390dbf */
448 PRINT_WARN("sense data available on channel %s.\n",
449 CHANNEL_ID(channel));
450 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
451 HEXDUMP16(WARN,"irb: ",irb);
452 HEXDUMP16(WARN,"sense data: ",irb->ecw);
453 }
454 rc = qeth_get_problem(cdev,irb);
455 if (rc) {
456 qeth_schedule_recovery(card);
457 goto out;
458 }
459 }
460
461 if (intparm) {
462 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
463 buffer->state = BUF_STATE_PROCESSED;
464 }
465 if (channel == &card->data)
466 return;
467
468 if (channel == &card->read &&
469 channel->state == CH_STATE_UP)
470 qeth_issue_next_read(card);
471
472 tasklet_schedule(&channel->irq_tasklet);
473 return;
474out:
475 wake_up(&card->wait_q);
476}
477
478/**
479 * tasklet function scheduled from irq handler
480 */
481static void
482qeth_irq_tasklet(unsigned long data)
483{
484 struct qeth_card *card;
485 struct qeth_channel *channel;
486 struct qeth_cmd_buffer *iob;
487 __u8 index;
488
489 QETH_DBF_TEXT(trace,5,"irqtlet");
490 channel = (struct qeth_channel *) data;
491 iob = channel->iob;
492 index = channel->buf_no;
493 card = CARD_FROM_CDEV(channel->ccwdev);
494 while (iob[index].state == BUF_STATE_PROCESSED) {
495 if (iob[index].callback !=NULL) {
496 iob[index].callback(channel,iob + index);
497 }
498 index = (index + 1) % QETH_CMD_BUFFER_NO;
499 }
500 channel->buf_no = index;
501 wake_up(&card->wait_q);
502}
503
05e08a2a 504static int qeth_stop_card(struct qeth_card *, int);
1da177e4
LT		 505
506static int
05e08a2a 507__qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
1da177e4
LT		 508{
509 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
9123e0d7 510 int rc = 0, rc2 = 0, rc3 = 0;
1da177e4
LT		 511 enum qeth_card_states recover_flag;
512
513 QETH_DBF_TEXT(setup, 3, "setoffl");
514 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
e82b0f2c 515
66cc5d5a
FP		 516 if (card->dev && netif_carrier_ok(card->dev))
517 netif_carrier_off(card->dev);
1da177e4 518 recover_flag = card->state;
05e08a2a 519 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
1da177e4
LT		 520 PRINT_WARN("Stopping card %s interrupted by user!\n",
521 CARD_BUS_ID(card));
522 return -ERESTARTSYS;
523 }
9123e0d7
UB		 524 rc = ccw_device_set_offline(CARD_DDEV(card));
525 rc2 = ccw_device_set_offline(CARD_WDEV(card));
526 rc3 = ccw_device_set_offline(CARD_RDEV(card));
527 if (!rc)
528 rc = (rc2) ? rc2 : rc3;
529 if (rc)
1da177e4 530 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1da177e4
LT		 531 if (recover_flag == CARD_STATE_UP)
532 card->state = CARD_STATE_RECOVER;
533 qeth_notify_processes();
534 return 0;
535}
536
05e08a2a
FP		 537static int
538qeth_set_offline(struct ccwgroup_device *cgdev)
539{
540 return __qeth_set_offline(cgdev, 0);
541}
542
1da177e4
LT		 543static int
544qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
545
546
547static void
548qeth_remove_device(struct ccwgroup_device *cgdev)
549{
550 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
551 unsigned long flags;
552
553 QETH_DBF_TEXT(setup, 3, "rmdev");
554 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
555
556 if (!card)
557 return;
558
559 if (qeth_wait_for_threads(card, 0xffffffff))
560 return;
561
562 if (cgdev->state == CCWGROUP_ONLINE){
563 card->use_hard_stop = 1;
564 qeth_set_offline(cgdev);
565 }
566 /* remove form our internal list */
567 write_lock_irqsave(&qeth_card_list.rwlock, flags);
568 list_del(&card->list);
569 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
570 if (card->dev)
571 unregister_netdev(card->dev);
572 qeth_remove_device_attributes(&cgdev->dev);
573 qeth_free_card(card);
574 cgdev->dev.driver_data = NULL;
575 put_device(&cgdev->dev);
576}
577
578static int
579qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
580static int
581qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
582
583/**
584 * Add/remove address to/from card's ip list, i.e. try to add or remove
585 * reference to/from an IP address that is already registered on the card.
586 * Returns:
587 * 0 address was on card and its reference count has been adjusted,
588 * but is still > 0, so nothing has to be done
589 * also returns 0 if card was not on card and the todo was to delete
590 * the address -> there is also nothing to be done
591 * 1 address was not on card and the todo is to add it to the card's ip
592 * list
593 * -1 address was on card and its reference count has been decremented
594 * to <= 0 by the todo -> address must be removed from card
595 */
596static int
597__qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
598 struct qeth_ipaddr **__addr)
599{
600 struct qeth_ipaddr *addr;
601 int found = 0;
602
603 list_for_each_entry(addr, &card->ip_list, entry) {
6c88ad2d
FP		 604 if (card->options.layer2) {
605 if ((addr->type == todo->type) &&
e82b0f2c 606 (memcmp(&addr->mac, &todo->mac,
6c88ad2d
FP		 607 OSA_ADDR_LEN) == 0)) {
608 found = 1;
609 break;
610 }
611 continue;
e82b0f2c 612 }
1da177e4
LT		 613 if ((addr->proto == QETH_PROT_IPV4) &&
614 (todo->proto == QETH_PROT_IPV4) &&
615 (addr->type == todo->type) &&
616 (addr->u.a4.addr == todo->u.a4.addr) &&
6c88ad2d 617 (addr->u.a4.mask == todo->u.a4.mask)) {
1da177e4
LT		 618 found = 1;
619 break;
620 }
621 if ((addr->proto == QETH_PROT_IPV6) &&
622 (todo->proto == QETH_PROT_IPV6) &&
623 (addr->type == todo->type) &&
624 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
625 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
6c88ad2d 626 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 627 found = 1;
628 break;
629 }
630 }
6c88ad2d 631 if (found) {
1da177e4
LT		 632 addr->users += todo->users;
633 if (addr->users <= 0){
634 *__addr = addr;
635 return -1;
636 } else {
637 /* for VIPA and RXIP limit refcount to 1 */
638 if (addr->type != QETH_IP_TYPE_NORMAL)
639 addr->users = 1;
640 return 0;
641 }
642 }
6c88ad2d 643 if (todo->users > 0) {
1da177e4
LT		 644 /* for VIPA and RXIP limit refcount to 1 */
645 if (todo->type != QETH_IP_TYPE_NORMAL)
646 todo->users = 1;
647 return 1;
648 } else
649 return 0;
650}
651
652static inline int
653__qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
654 int same_type)
655{
656 struct qeth_ipaddr *tmp;
657
658 list_for_each_entry(tmp, list, entry) {
659 if ((tmp->proto == QETH_PROT_IPV4) &&
660 (addr->proto == QETH_PROT_IPV4) &&
661 ((same_type && (tmp->type == addr->type)) ||
662 (!same_type && (tmp->type != addr->type)) ) &&
663 (tmp->u.a4.addr == addr->u.a4.addr) ){
664 return 1;
665 }
666 if ((tmp->proto == QETH_PROT_IPV6) &&
667 (addr->proto == QETH_PROT_IPV6) &&
668 ((same_type && (tmp->type == addr->type)) ||
669 (!same_type && (tmp->type != addr->type)) ) &&
670 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
671 sizeof(struct in6_addr)) == 0) ) {
672 return 1;
673 }
674 }
675 return 0;
676}
677
678/*
679 * Add IP to be added to todo list. If there is already an "add todo"
680 * in this list we just incremenent the reference count.
681 * Returns 0 if we just incremented reference count.
682 */
683static int
684__qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
685{
686 struct qeth_ipaddr *tmp, *t;
687 int found = 0;
688
689 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
690 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
691 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
692 return 0;
6c88ad2d
FP		 693 if (card->options.layer2) {
694 if ((tmp->type == addr->type) &&
695 (tmp->is_multicast == addr->is_multicast) &&
e82b0f2c 696 (memcmp(&tmp->mac, &addr->mac,
6c88ad2d
FP		 697 OSA_ADDR_LEN) == 0)) {
698 found = 1;
699 break;
700 }
701 continue;
e82b0f2c 702 }
1da177e4
LT		 703 if ((tmp->proto == QETH_PROT_IPV4) &&
704 (addr->proto == QETH_PROT_IPV4) &&
705 (tmp->type == addr->type) &&
706 (tmp->is_multicast == addr->is_multicast) &&
707 (tmp->u.a4.addr == addr->u.a4.addr) &&
6c88ad2d 708 (tmp->u.a4.mask == addr->u.a4.mask)) {
1da177e4
LT		 709 found = 1;
710 break;
711 }
712 if ((tmp->proto == QETH_PROT_IPV6) &&
713 (addr->proto == QETH_PROT_IPV6) &&
714 (tmp->type == addr->type) &&
715 (tmp->is_multicast == addr->is_multicast) &&
716 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
717 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
6c88ad2d 718 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 719 found = 1;
720 break;
721 }
722 }
723 if (found){
724 if (addr->users != 0)
725 tmp->users += addr->users;
726 else
727 tmp->users += add? 1:-1;
6c88ad2d 728 if (tmp->users == 0) {
1da177e4
LT		 729 list_del(&tmp->entry);
730 kfree(tmp);
731 }
732 return 0;
733 } else {
734 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
735 list_add(&addr->entry, card->ip_tbd_list);
736 else {
737 if (addr->users == 0)
738 addr->users += add? 1:-1;
739 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
740 qeth_is_addr_covered_by_ipato(card, addr)){
741 QETH_DBF_TEXT(trace, 2, "tkovaddr");
742 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
743 }
744 list_add_tail(&addr->entry, card->ip_tbd_list);
745 }
746 return 1;
747 }
748}
749
750/**
751 * Remove IP address from list
752 */
753static int
754qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
755{
756 unsigned long flags;
757 int rc = 0;
758
6c88ad2d
FP		 759 QETH_DBF_TEXT(trace, 4, "delip");
760
761 if (card->options.layer2)
762 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
763 else if (addr->proto == QETH_PROT_IPV4)
764 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 765 else {
6c88ad2d
FP		 766 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
767 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 768 }
769 spin_lock_irqsave(&card->ip_lock, flags);
770 rc = __qeth_insert_ip_todo(card, addr, 0);
771 spin_unlock_irqrestore(&card->ip_lock, flags);
772 return rc;
773}
774
775static int
776qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
777{
778 unsigned long flags;
779 int rc = 0;
780
6c88ad2d
FP		 781 QETH_DBF_TEXT(trace, 4, "addip");
782 if (card->options.layer2)
783 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
784 else if (addr->proto == QETH_PROT_IPV4)
785 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 786 else {
6c88ad2d
FP		 787 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
788 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 789 }
790 spin_lock_irqsave(&card->ip_lock, flags);
791 rc = __qeth_insert_ip_todo(card, addr, 1);
792 spin_unlock_irqrestore(&card->ip_lock, flags);
793 return rc;
794}
795
796static inline void
797__qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
798{
799 struct qeth_ipaddr *addr, *tmp;
800 int rc;
d805d7c6 801again:
1da177e4
LT		 802 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
803 if (addr->is_multicast) {
804 spin_unlock_irqrestore(&card->ip_lock, *flags);
805 rc = qeth_deregister_addr_entry(card, addr);
806 spin_lock_irqsave(&card->ip_lock, *flags);
807 if (!rc) {
808 list_del(&addr->entry);
809 kfree(addr);
d805d7c6 810 goto again;
1da177e4
LT		 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
6c951b90
FP		 967/*
968 * Drive the SET_PROMISC_MODE thread
969 */
970static int
971qeth_set_promisc_mode(void *ptr)
972{
973 struct qeth_card *card = (struct qeth_card *) ptr;
974
975 daemonize("qeth_setprm");
976 QETH_DBF_TEXT(trace,4,"setprm1");
977 if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
978 return 0;
979 QETH_DBF_TEXT(trace,4,"setprm2");
980 qeth_setadp_promisc_mode(card);
981 qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
982 return 0;
983}
984
1da177e4
LT		 985static int
986qeth_recover(void *ptr)
987{
988 struct qeth_card *card;
989 int rc = 0;
990
991 card = (struct qeth_card *) ptr;
992 daemonize("qeth_recover");
993 QETH_DBF_TEXT(trace,2,"recover1");
994 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
995 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
996 return 0;
997 QETH_DBF_TEXT(trace,2,"recover2");
998 PRINT_WARN("Recovery of device %s started ...\n",
999 CARD_BUS_ID(card));
1000 card->use_hard_stop = 1;
05e08a2a
FP		 1001 __qeth_set_offline(card->gdev,1);
1002 rc = __qeth_set_online(card->gdev,1);
1da177e4
LT		 1003 if (!rc)
1004 PRINT_INFO("Device %s successfully recovered!\n",
1005 CARD_BUS_ID(card));
1006 else
1007 PRINT_INFO("Device %s could not be recovered!\n",
1008 CARD_BUS_ID(card));
1009 /* don't run another scheduled recovery */
1010 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1011 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1012 return 0;
1013}
1014
1015void
1016qeth_schedule_recovery(struct qeth_card *card)
1017{
1018 QETH_DBF_TEXT(trace,2,"startrec");
1da177e4
LT		 1019 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1020 schedule_work(&card->kernel_thread_starter);
1021}
1022
1023static int
1024qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1025{
1026 unsigned long flags;
1027 int rc = 0;
1028
1029 spin_lock_irqsave(&card->thread_mask_lock, flags);
1030 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1031 (u8) card->thread_start_mask,
1032 (u8) card->thread_allowed_mask,
1033 (u8) card->thread_running_mask);
1034 rc = (card->thread_start_mask & thread);
1035 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1036 return rc;
1037}
1038
1039static void
1040qeth_start_kernel_thread(struct qeth_card *card)
1041{
1042 QETH_DBF_TEXT(trace , 2, "strthrd");
1043
1044 if (card->read.state != CH_STATE_UP &&
1045 card->write.state != CH_STATE_UP)
1046 return;
1047
1048 if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1049 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
6c951b90
FP		 1050 if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1051 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1da177e4
LT		 1052 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1053 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1054}
1055
1056
1057static void
1058qeth_set_intial_options(struct qeth_card *card)
1059{
1060 card->options.route4.type = NO_ROUTER;
1061#ifdef CONFIG_QETH_IPV6
1062 card->options.route6.type = NO_ROUTER;
1063#endif /* QETH_IPV6 */
1064 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1065 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1066 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1067 card->options.fake_broadcast = 0;
1068 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1069 card->options.fake_ll = 0;
500f83ab
UB		 1070 if (card->info.type == QETH_CARD_TYPE_OSN)
1071 card->options.layer2 = 1;
1072 else
1073 card->options.layer2 = 0;
1da177e4
LT		 1074}
1075
1076/**
1077 * initialize channels ,card and all state machines
1078 */
1079static int
1080qeth_setup_card(struct qeth_card *card)
1081{
1082
1083 QETH_DBF_TEXT(setup, 2, "setupcrd");
1084 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1085
1086 card->read.state = CH_STATE_DOWN;
1087 card->write.state = CH_STATE_DOWN;
1088 card->data.state = CH_STATE_DOWN;
1089 card->state = CARD_STATE_DOWN;
1090 card->lan_online = 0;
1091 card->use_hard_stop = 0;
1092 card->dev = NULL;
1093#ifdef CONFIG_QETH_VLAN
1094 spin_lock_init(&card->vlanlock);
1095 card->vlangrp = NULL;
1096#endif
9123e0d7 1097 spin_lock_init(&card->lock);
1da177e4
LT		 1098 spin_lock_init(&card->ip_lock);
1099 spin_lock_init(&card->thread_mask_lock);
1100 card->thread_start_mask = 0;
1101 card->thread_allowed_mask = 0;
1102 card->thread_running_mask = 0;
1103 INIT_WORK(&card->kernel_thread_starter,
1104 (void *)qeth_start_kernel_thread,card);
1105 INIT_LIST_HEAD(&card->ip_list);
1106 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1107 if (!card->ip_tbd_list) {
1108 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1109 return -ENOMEM;
1110 }
1111 INIT_LIST_HEAD(card->ip_tbd_list);
1112 INIT_LIST_HEAD(&card->cmd_waiter_list);
1113 init_waitqueue_head(&card->wait_q);
1114 /* intial options */
1115 qeth_set_intial_options(card);
1116 /* IP address takeover */
1117 INIT_LIST_HEAD(&card->ipato.entries);
1118 card->ipato.enabled = 0;
1119 card->ipato.invert4 = 0;
1120 card->ipato.invert6 = 0;
1121 /* init QDIO stuff */
1122 qeth_init_qdio_info(card);
1123 return 0;
1124}
1125
1126static int
1127is_1920_device (struct qeth_card *card)
1128{
1129 int single_queue = 0;
1130 struct ccw_device *ccwdev;
1131 struct channelPath_dsc {
1132 u8 flags;
1133 u8 lsn;
1134 u8 desc;
1135 u8 chpid;
1136 u8 swla;
1137 u8 zeroes;
1138 u8 chla;
1139 u8 chpp;
1140 } *chp_dsc;
1141
1142 QETH_DBF_TEXT(setup, 2, "chk_1920");
1143
1144 ccwdev = card->data.ccwdev;
1145 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1146 if (chp_dsc != NULL) {
1147 /* CHPP field bit 6 == 1 -> single queue */
1148 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1149 kfree(chp_dsc);
1150 }
1151 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1152 return single_queue;
1153}
1154
1155static int
1156qeth_determine_card_type(struct qeth_card *card)
1157{
1158 int i = 0;
1159
1160 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1161
500f83ab
UB		 1162 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1163 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1da177e4
LT		 1164 while (known_devices[i][4]) {
1165 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1166 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1167 card->info.type = known_devices[i][4];
500f83ab
UB		 1168 card->qdio.no_out_queues = known_devices[i][8];
1169 card->info.is_multicast_different = known_devices[i][9];
1da177e4
LT		 1170 if (is_1920_device(card)) {
1171 PRINT_INFO("Priority Queueing not able "
1172 "due to hardware limitations!\n");
1173 card->qdio.no_out_queues = 1;
1174 card->qdio.default_out_queue = 0;
e82b0f2c 1175 }
1da177e4
LT		 1176 return 0;
1177 }
1178 i++;
1179 }
1180 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1181 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1182 return -ENOENT;
1183}
1184
1185static int
1186qeth_probe_device(struct ccwgroup_device *gdev)
1187{
1188 struct qeth_card *card;
1189 struct device *dev;
1190 unsigned long flags;
1191 int rc;
1192
1193 QETH_DBF_TEXT(setup, 2, "probedev");
1194
1195 dev = &gdev->dev;
1196 if (!get_device(dev))
1197 return -ENODEV;
1198
500f83ab 1199 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
e82b0f2c 1200
1da177e4
LT		 1201 card = qeth_alloc_card();
1202 if (!card) {
1203 put_device(dev);
1204 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1205 return -ENOMEM;
1206 }
1207 card->read.ccwdev = gdev->cdev[0];
1208 card->write.ccwdev = gdev->cdev[1];
1209 card->data.ccwdev = gdev->cdev[2];
1da177e4
LT		 1210 gdev->dev.driver_data = card;
1211 card->gdev = gdev;
1212 gdev->cdev[0]->handler = qeth_irq;
1213 gdev->cdev[1]->handler = qeth_irq;
1214 gdev->cdev[2]->handler = qeth_irq;
1215
500f83ab
UB		 1216 if ((rc = qeth_determine_card_type(card))){
1217 PRINT_WARN("%s: not a valid card type\n", __func__);
1218 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1219 put_device(dev);
1220 qeth_free_card(card);
1221 return rc;
e82b0f2c 1222 }
500f83ab
UB		 1223 if ((rc = qeth_setup_card(card))){
1224 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1da177e4
LT		 1225 put_device(dev);
1226 qeth_free_card(card);
1227 return rc;
1228 }
500f83ab
UB		 1229 rc = qeth_create_device_attributes(dev);
1230 if (rc) {
1da177e4
LT		 1231 put_device(dev);
1232 qeth_free_card(card);
1233 return rc;
1234 }
1235 /* insert into our internal list */
1236 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1237 list_add_tail(&card->list, &qeth_card_list.list);
1238 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1239 return rc;
1240}
1241
1242
1243static int
1244qeth_get_unitaddr(struct qeth_card *card)
1245{
1246 int length;
1247 char *prcd;
1248 int rc;
1249
1250 QETH_DBF_TEXT(setup, 2, "getunit");
1251 rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1252 if (rc) {
1253 PRINT_ERR("read_conf_data for device %s returned %i\n",
1254 CARD_DDEV_ID(card), rc);
1255 return rc;
1256 }
1257 card->info.chpid = prcd[30];
1258 card->info.unit_addr2 = prcd[31];
1259 card->info.cula = prcd[63];
1260 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1261 (prcd[0x11] == _ascebc['M']));
1262 return 0;
1263}
1264
1265static void
1266qeth_init_tokens(struct qeth_card *card)
1267{
1268 card->token.issuer_rm_w = 0x00010103UL;
1269 card->token.cm_filter_w = 0x00010108UL;
1270 card->token.cm_connection_w = 0x0001010aUL;
1271 card->token.ulp_filter_w = 0x0001010bUL;
1272 card->token.ulp_connection_w = 0x0001010dUL;
1273}
1274
1275static inline __u16
1276raw_devno_from_bus_id(char *id)
1277{
1278 id += (strlen(id) - 4);
1279 return (__u16) simple_strtoul(id, &id, 16);
1280}
1281/**
1282 * setup channel
1283 */
1284static void
1285qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1286{
1287 struct qeth_card *card;
1288
1289 QETH_DBF_TEXT(trace, 4, "setupccw");
1290 card = CARD_FROM_CDEV(channel->ccwdev);
1291 if (channel == &card->read)
1292 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1293 else
1294 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1295 channel->ccw.count = len;
1296 channel->ccw.cda = (__u32) __pa(iob);
1297}
1298
1299/**
1300 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1301 */
1302static struct qeth_cmd_buffer *
1303__qeth_get_buffer(struct qeth_channel *channel)
1304{
1305 __u8 index;
1306
1307 QETH_DBF_TEXT(trace, 6, "getbuff");
1308 index = channel->io_buf_no;
1309 do {
1310 if (channel->iob[index].state == BUF_STATE_FREE) {
1311 channel->iob[index].state = BUF_STATE_LOCKED;
1312 channel->io_buf_no = (channel->io_buf_no + 1) %
1313 QETH_CMD_BUFFER_NO;
1314 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1315 return channel->iob + index;
1316 }
1317 index = (index + 1) % QETH_CMD_BUFFER_NO;
1318 } while(index != channel->io_buf_no);
1319
1320 return NULL;
1321}
1322
1323/**
1324 * release command buffer
1325 */
1326static void
1327qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1328{
1329 unsigned long flags;
1330
1331 QETH_DBF_TEXT(trace, 6, "relbuff");
1332 spin_lock_irqsave(&channel->iob_lock, flags);
1333 memset(iob->data, 0, QETH_BUFSIZE);
1334 iob->state = BUF_STATE_FREE;
1335 iob->callback = qeth_send_control_data_cb;
1336 iob->rc = 0;
1337 spin_unlock_irqrestore(&channel->iob_lock, flags);
1338}
1339
1340static struct qeth_cmd_buffer *
1341qeth_get_buffer(struct qeth_channel *channel)
1342{
1343 struct qeth_cmd_buffer *buffer = NULL;
1344 unsigned long flags;
1345
1346 spin_lock_irqsave(&channel->iob_lock, flags);
1347 buffer = __qeth_get_buffer(channel);
1348 spin_unlock_irqrestore(&channel->iob_lock, flags);
1349 return buffer;
1350}
1351
1352static struct qeth_cmd_buffer *
1353qeth_wait_for_buffer(struct qeth_channel *channel)
1354{
1355 struct qeth_cmd_buffer *buffer;
1356 wait_event(channel->wait_q,
1357 ((buffer = qeth_get_buffer(channel)) != NULL));
1358 return buffer;
1359}
1360
1361static void
1362qeth_clear_cmd_buffers(struct qeth_channel *channel)
1363{
1380fee2 1364 int cnt;
1da177e4
LT		 1365
1366 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1367 qeth_release_buffer(channel,&channel->iob[cnt]);
1368 channel->buf_no = 0;
1369 channel->io_buf_no = 0;
1370}
1371
1372/**
1373 * start IDX for read and write channel
1374 */
1375static int
1376qeth_idx_activate_get_answer(struct qeth_channel *channel,
1377 void (*idx_reply_cb)(struct qeth_channel *,
1378 struct qeth_cmd_buffer *))
1379{
1380 struct qeth_cmd_buffer *iob;
1381 unsigned long flags;
1382 int rc;
1383 struct qeth_card *card;
1384
1385 QETH_DBF_TEXT(setup, 2, "idxanswr");
1386 card = CARD_FROM_CDEV(channel->ccwdev);
1387 iob = qeth_get_buffer(channel);
1388 iob->callback = idx_reply_cb;
1389 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1390 channel->ccw.count = QETH_BUFSIZE;
1391 channel->ccw.cda = (__u32) __pa(iob->data);
1392
1393 wait_event(card->wait_q,
973bd993 1394 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1da177e4
LT		 1395 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1396 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1397 rc = ccw_device_start(channel->ccwdev,
1398 &channel->ccw,(addr_t) iob, 0, 0);
1399 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1400
1401 if (rc) {
1402 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1403 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1404 atomic_set(&channel->irq_pending, 0);
1405 wake_up(&card->wait_q);
1406 return rc;
1407 }
1408 rc = wait_event_interruptible_timeout(card->wait_q,
1409 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1410 if (rc == -ERESTARTSYS)
1411 return rc;
1412 if (channel->state != CH_STATE_UP){
1413 rc = -ETIME;
1414 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1415 qeth_clear_cmd_buffers(channel);
1416 } else
1417 rc = 0;
1418 return rc;
1419}
1420
1421static int
1422qeth_idx_activate_channel(struct qeth_channel *channel,
1423 void (*idx_reply_cb)(struct qeth_channel *,
1424 struct qeth_cmd_buffer *))
1425{
1426 struct qeth_card *card;
1427 struct qeth_cmd_buffer *iob;
1428 unsigned long flags;
1429 __u16 temp;
1430 int rc;
1431
1432 card = CARD_FROM_CDEV(channel->ccwdev);
1433
1434 QETH_DBF_TEXT(setup, 2, "idxactch");
1435
1436 iob = qeth_get_buffer(channel);
1437 iob->callback = idx_reply_cb;
1438 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1439 channel->ccw.count = IDX_ACTIVATE_SIZE;
1440 channel->ccw.cda = (__u32) __pa(iob->data);
1441 if (channel == &card->write) {
1442 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1443 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1444 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1445 card->seqno.trans_hdr++;
1446 } else {
1447 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1448 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1449 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1450 }
1451 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1452 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1453 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1454 &card->info.func_level,sizeof(__u16));
1455 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1456 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1457 temp = (card->info.cula << 8) + card->info.unit_addr2;
1458 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1459
1460 wait_event(card->wait_q,
973bd993 1461 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1da177e4
LT		 1462 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1463 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1464 rc = ccw_device_start(channel->ccwdev,
1465 &channel->ccw,(addr_t) iob, 0, 0);
1466 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1467
1468 if (rc) {
1469 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1470 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1471 atomic_set(&channel->irq_pending, 0);
1472 wake_up(&card->wait_q);
1473 return rc;
1474 }
1475 rc = wait_event_interruptible_timeout(card->wait_q,
1476 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1477 if (rc == -ERESTARTSYS)
1478 return rc;
1479 if (channel->state != CH_STATE_ACTIVATING) {
1480 PRINT_WARN("qeth: IDX activate timed out!\n");
1481 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1482 qeth_clear_cmd_buffers(channel);
1483 return -ETIME;
1484 }
1485 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1486}
1487
1488static int
1489qeth_peer_func_level(int level)
1490{
1491 if ((level & 0xff) == 8)
1492 return (level & 0xff) + 0x400;
1493 if (((level >> 8) & 3) == 1)
1494 return (level & 0xff) + 0x200;
1495 return level;
1496}
1497
1498static void
1499qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1500{
1501 struct qeth_card *card;
1502 __u16 temp;
1503
1504 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1505
1506 if (channel->state == CH_STATE_DOWN) {
1507 channel->state = CH_STATE_ACTIVATING;
1508 goto out;
1509 }
1510 card = CARD_FROM_CDEV(channel->ccwdev);
1511
1512 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1513 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1514 "reply\n", CARD_WDEV_ID(card));
1515 goto out;
1516 }
1517 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1518 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1519 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1520 "function level mismatch "
1521 "(sent: 0x%x, received: 0x%x)\n",
1522 CARD_WDEV_ID(card), card->info.func_level, temp);
1523 goto out;
1524 }
1525 channel->state = CH_STATE_UP;
1526out:
1527 qeth_release_buffer(channel, iob);
1528}
1529
1530static int
1531qeth_check_idx_response(unsigned char *buffer)
1532{
1533 if (!buffer)
1534 return 0;
1535
1536 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1537 if ((buffer[2] & 0xc0) == 0xc0) {
1538 PRINT_WARN("received an IDX TERMINATE "
1539 "with cause code 0x%02x%s\n",
1540 buffer[4],
1541 ((buffer[4] == 0x22) ?
1542 " -- try another portname" : ""));
1543 QETH_DBF_TEXT(trace, 2, "ckidxres");
1544 QETH_DBF_TEXT(trace, 2, " idxterm");
1545 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1546 return -EIO;
1547 }
1548 return 0;
1549}
1550
1551static void
1552qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1553{
1554 struct qeth_card *card;
1555 __u16 temp;
1556
1557 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1558 if (channel->state == CH_STATE_DOWN) {
1559 channel->state = CH_STATE_ACTIVATING;
1560 goto out;
1561 }
1562
1563 card = CARD_FROM_CDEV(channel->ccwdev);
1564 if (qeth_check_idx_response(iob->data)) {
1565 goto out;
1566 }
1567 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1568 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1569 "reply\n", CARD_RDEV_ID(card));
1570 goto out;
1571 }
1572
1573/**
1574 * temporary fix for microcode bug
1575 * to revert it,replace OR by AND
1576 */
1577 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1578 (card->info.type == QETH_CARD_TYPE_OSAE) )
1579 card->info.portname_required = 1;
1580
1581 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1582 if (temp != qeth_peer_func_level(card->info.func_level)) {
1583 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1584 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1585 CARD_RDEV_ID(card), card->info.func_level, temp);
1586 goto out;
1587 }
1588 memcpy(&card->token.issuer_rm_r,
1589 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1590 QETH_MPC_TOKEN_LENGTH);
1591 memcpy(&card->info.mcl_level[0],
1592 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1593 channel->state = CH_STATE_UP;
1594out:
1595 qeth_release_buffer(channel,iob);
1596}
1597
1598static int
1599qeth_issue_next_read(struct qeth_card *card)
1600{
1601 int rc;
1602 struct qeth_cmd_buffer *iob;
1603
1604 QETH_DBF_TEXT(trace,5,"issnxrd");
1605 if (card->read.state != CH_STATE_UP)
1606 return -EIO;
1607 iob = qeth_get_buffer(&card->read);
1608 if (!iob) {
1609 PRINT_WARN("issue_next_read failed: no iob available!\n");
1610 return -ENOMEM;
1611 }
1612 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1613 wait_event(card->wait_q,
973bd993 1614 atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1da177e4
LT		 1615 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1616 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1617 (addr_t) iob, 0, 0);
1618 if (rc) {
1619 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1620 atomic_set(&card->read.irq_pending, 0);
1621 qeth_schedule_recovery(card);
1622 wake_up(&card->wait_q);
1623 }
1624 return rc;
1625}
1626
1627static struct qeth_reply *
1628qeth_alloc_reply(struct qeth_card *card)
1629{
1630 struct qeth_reply *reply;
1631
88abaab4 1632 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1da177e4 1633 if (reply){
1da177e4
LT		 1634 atomic_set(&reply->refcnt, 1);
1635 reply->card = card;
1636 };
1637 return reply;
1638}
1639
1640static void
1641qeth_get_reply(struct qeth_reply *reply)
1642{
1643 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1644 atomic_inc(&reply->refcnt);
1645}
1646
1647static void
1648qeth_put_reply(struct qeth_reply *reply)
1649{
1650 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1651 if (atomic_dec_and_test(&reply->refcnt))
1652 kfree(reply);
1653}
1654
1655static void
1656qeth_cmd_timeout(unsigned long data)
1657{
1658 struct qeth_reply *reply, *list_reply, *r;
1659 unsigned long flags;
1660
1661 reply = (struct qeth_reply *) data;
1662 spin_lock_irqsave(&reply->card->lock, flags);
1663 list_for_each_entry_safe(list_reply, r,
1664 &reply->card->cmd_waiter_list, list) {
1665 if (reply == list_reply){
1666 qeth_get_reply(reply);
1667 list_del_init(&reply->list);
1668 spin_unlock_irqrestore(&reply->card->lock, flags);
1669 reply->rc = -ETIME;
1670 reply->received = 1;
1671 wake_up(&reply->wait_q);
1672 qeth_put_reply(reply);
1673 return;
1674 }
1675 }
1676 spin_unlock_irqrestore(&reply->card->lock, flags);
1677}
1678
66cc5d5a 1679
1da177e4
LT		 1680static struct qeth_ipa_cmd *
1681qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1682{
1683 struct qeth_ipa_cmd *cmd = NULL;
1684
1685 QETH_DBF_TEXT(trace,5,"chkipad");
1686 if (IS_IPA(iob->data)){
1687 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1688 if (IS_IPA_REPLY(cmd))
1689 return cmd;
1690 else {
1691 switch (cmd->hdr.command) {
1692 case IPA_CMD_STOPLAN:
1693 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1694 "there is a network problem or "
1695 "someone pulled the cable or "
1696 "disabled the port.\n",
1697 QETH_CARD_IFNAME(card),
1698 card->info.chpid);
1699 card->lan_online = 0;
66cc5d5a
FP		 1700 if (card->dev && netif_carrier_ok(card->dev))
1701 netif_carrier_off(card->dev);
1da177e4
LT		 1702 return NULL;
1703 case IPA_CMD_STARTLAN:
1704 PRINT_INFO("Link reestablished on %s "
1705 "(CHPID 0x%X). Scheduling "
1706 "IP address reset.\n",
1707 QETH_CARD_IFNAME(card),
1708 card->info.chpid);
9123e0d7 1709 qeth_schedule_recovery(card);
1da177e4 1710 return NULL;
500f83ab
UB		 1711 case IPA_CMD_MODCCID:
1712 return cmd;
1da177e4
LT		 1713 case IPA_CMD_REGISTER_LOCAL_ADDR:
1714 QETH_DBF_TEXT(trace,3, "irla");
1715 break;
1716 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1717 QETH_DBF_TEXT(trace,3, "urla");
1718 break;
1719 default:
1720 PRINT_WARN("Received data is IPA "
1721 "but not a reply!\n");
1722 break;
1723 }
1724 }
1725 }
1726 return cmd;
1727}
1728
1729/**
1730 * wake all waiting ipa commands
1731 */
1732static void
1733qeth_clear_ipacmd_list(struct qeth_card *card)
1734{
1735 struct qeth_reply *reply, *r;
1736 unsigned long flags;
1737
1738 QETH_DBF_TEXT(trace, 4, "clipalst");
1739
1740 spin_lock_irqsave(&card->lock, flags);
1741 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1742 qeth_get_reply(reply);
1743 reply->rc = -EIO;
1744 reply->received = 1;
1745 list_del_init(&reply->list);
1746 wake_up(&reply->wait_q);
1747 qeth_put_reply(reply);
1748 }
1749 spin_unlock_irqrestore(&card->lock, flags);
1750}
1751
1752static void
1753qeth_send_control_data_cb(struct qeth_channel *channel,
1754 struct qeth_cmd_buffer *iob)
1755{
1756 struct qeth_card *card;
1757 struct qeth_reply *reply, *r;
1758 struct qeth_ipa_cmd *cmd;
1759 unsigned long flags;
1760 int keep_reply;
1761
1762 QETH_DBF_TEXT(trace,4,"sndctlcb");
1763
1764 card = CARD_FROM_CDEV(channel->ccwdev);
1765 if (qeth_check_idx_response(iob->data)) {
1766 qeth_clear_ipacmd_list(card);
1767 qeth_schedule_recovery(card);
1768 goto out;
1769 }
1770
1771 cmd = qeth_check_ipa_data(card, iob);
1772 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1773 goto out;
500f83ab
UB		 1774 /*in case of OSN : check if cmd is set */
1775 if (card->info.type == QETH_CARD_TYPE_OSN &&
1776 cmd &&
1777 cmd->hdr.command != IPA_CMD_STARTLAN &&
1778 card->osn_info.assist_cb != NULL) {
1779 card->osn_info.assist_cb(card->dev, cmd);
1780 goto out;
1781 }
1da177e4
LT		 1782
1783 spin_lock_irqsave(&card->lock, flags);
1784 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1785 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1786 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1787 qeth_get_reply(reply);
1788 list_del_init(&reply->list);
1789 spin_unlock_irqrestore(&card->lock, flags);
1790 keep_reply = 0;
1791 if (reply->callback != NULL) {
1792 if (cmd) {
1793 reply->offset = (__u16)((char*)cmd -
1794 (char *)iob->data);
1795 keep_reply = reply->callback(card,
1796 reply,
1797 (unsigned long)cmd);
500f83ab 1798 } else
1da177e4
LT		 1799 keep_reply = reply->callback(card,
1800 reply,
1801 (unsigned long)iob);
1802 }
1803 if (cmd)
1804 reply->rc = (u16) cmd->hdr.return_code;
1805 else if (iob->rc)
1806 reply->rc = iob->rc;
1807 if (keep_reply) {
1808 spin_lock_irqsave(&card->lock, flags);
1809 list_add_tail(&reply->list,
1810 &card->cmd_waiter_list);
1811 spin_unlock_irqrestore(&card->lock, flags);
1812 } else {
1813 reply->received = 1;
1814 wake_up(&reply->wait_q);
1815 }
1816 qeth_put_reply(reply);
1817 goto out;
1818 }
1819 }
1820 spin_unlock_irqrestore(&card->lock, flags);
1821out:
1822 memcpy(&card->seqno.pdu_hdr_ack,
1823 QETH_PDU_HEADER_SEQ_NO(iob->data),
1824 QETH_SEQ_NO_LENGTH);
1825 qeth_release_buffer(channel,iob);
1826}
1827
500f83ab
UB		 1828static inline void
1829qeth_prepare_control_data(struct qeth_card *card, int len,
1830struct qeth_cmd_buffer *iob)
1831{
1832 qeth_setup_ccw(&card->write,iob->data,len);
1833 iob->callback = qeth_release_buffer;
1834
1835 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1836 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1837 card->seqno.trans_hdr++;
1838 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1839 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1840 card->seqno.pdu_hdr++;
1841 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1842 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1843 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1844}
e82b0f2c 1845
1da177e4
LT		 1846static int
1847qeth_send_control_data(struct qeth_card *card, int len,
1848 struct qeth_cmd_buffer *iob,
1849 int (*reply_cb)
1850 (struct qeth_card *, struct qeth_reply*, unsigned long),
1851 void *reply_param)
1852
1853{
1854 int rc;
1855 unsigned long flags;
500f83ab 1856 struct qeth_reply *reply = NULL;
1da177e4
LT		 1857 struct timer_list timer;
1858
1859 QETH_DBF_TEXT(trace, 2, "sendctl");
1860
1da177e4
LT		 1861 reply = qeth_alloc_reply(card);
1862 if (!reply) {
1863 PRINT_WARN("Could no alloc qeth_reply!\n");
1864 return -ENOMEM;
1865 }
1866 reply->callback = reply_cb;
1867 reply->param = reply_param;
1868 if (card->state == CARD_STATE_DOWN)
1869 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1870 else
1871 reply->seqno = card->seqno.ipa++;
1872 init_timer(&timer);
1873 timer.function = qeth_cmd_timeout;
1874 timer.data = (unsigned long) reply;
1da177e4
LT		 1875 init_waitqueue_head(&reply->wait_q);
1876 spin_lock_irqsave(&card->lock, flags);
1877 list_add_tail(&reply->list, &card->cmd_waiter_list);
1878 spin_unlock_irqrestore(&card->lock, flags);
1879 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1880 wait_event(card->wait_q,
973bd993 1881 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
500f83ab
UB		 1882 qeth_prepare_control_data(card, len, iob);
1883 if (IS_IPA(iob->data))
1884 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1885 else
1886 timer.expires = jiffies + QETH_TIMEOUT;
1da177e4
LT		 1887 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1888 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1889 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1890 (addr_t) iob, 0, 0);
1891 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1892 if (rc){
1893 PRINT_WARN("qeth_send_control_data: "
1894 "ccw_device_start rc = %i\n", rc);
1895 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1896 spin_lock_irqsave(&card->lock, flags);
1897 list_del_init(&reply->list);
1898 qeth_put_reply(reply);
1899 spin_unlock_irqrestore(&card->lock, flags);
1900 qeth_release_buffer(iob->channel, iob);
1901 atomic_set(&card->write.irq_pending, 0);
1902 wake_up(&card->wait_q);
1903 return rc;
1904 }
1905 add_timer(&timer);
1906 wait_event(reply->wait_q, reply->received);
1907 del_timer_sync(&timer);
1908 rc = reply->rc;
1909 qeth_put_reply(reply);
1910 return rc;
1911}
1912
500f83ab
UB		 1913static int
1914qeth_osn_send_control_data(struct qeth_card *card, int len,
1915 struct qeth_cmd_buffer *iob)
1916{
1917 unsigned long flags;
1918 int rc = 0;
1919
1920 QETH_DBF_TEXT(trace, 5, "osndctrd");
1921
1922 wait_event(card->wait_q,
973bd993 1923 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
500f83ab
UB		 1924 qeth_prepare_control_data(card, len, iob);
1925 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1926 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1927 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1928 (addr_t) iob, 0, 0);
1929 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1930 if (rc){
1931 PRINT_WARN("qeth_osn_send_control_data: "
1932 "ccw_device_start rc = %i\n", rc);
1933 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1934 qeth_release_buffer(iob->channel, iob);
1935 atomic_set(&card->write.irq_pending, 0);
1936 wake_up(&card->wait_q);
1937 }
1938 return rc;
e82b0f2c 1939}
500f83ab
UB		 1940
1941static inline void
1942qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1943 char prot_type)
1944{
1945 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1946 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1947 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1948 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1949}
1950
1951static int
1952qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1953 int data_len)
1954{
1955 u16 s1, s2;
1956
4965e97f 1957 QETH_DBF_TEXT(trace,4,"osndipa");
500f83ab
UB		 1958
1959 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1960 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1961 s2 = (u16)data_len;
1962 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1963 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1964 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1965 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1966 return qeth_osn_send_control_data(card, s1, iob);
1967}
e82b0f2c 1968
1da177e4
LT		 1969static int
1970qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1971 int (*reply_cb)
1972 (struct qeth_card *,struct qeth_reply*, unsigned long),
1973 void *reply_param)
1974{
1975 int rc;
1976 char prot_type;
1977
1978 QETH_DBF_TEXT(trace,4,"sendipa");
1979
1da177e4 1980 if (card->options.layer2)
500f83ab
UB		 1981 if (card->info.type == QETH_CARD_TYPE_OSN)
1982 prot_type = QETH_PROT_OSN2;
1983 else
1984 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 1985 else
1986 prot_type = QETH_PROT_TCPIP;
500f83ab 1987 qeth_prepare_ipa_cmd(card,iob,prot_type);
1da177e4
LT		 1988 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1989 reply_cb, reply_param);
1990 return rc;
1991}
1992
1993
1994static int
1995qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1996 unsigned long data)
1997{
1998 struct qeth_cmd_buffer *iob;
1999
2000 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2001
2002 iob = (struct qeth_cmd_buffer *) data;
2003 memcpy(&card->token.cm_filter_r,
2004 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2005 QETH_MPC_TOKEN_LENGTH);
2006 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2007 return 0;
2008}
2009
2010static int
2011qeth_cm_enable(struct qeth_card *card)
2012{
2013 int rc;
2014 struct qeth_cmd_buffer *iob;
2015
2016 QETH_DBF_TEXT(setup,2,"cmenable");
2017
2018 iob = qeth_wait_for_buffer(&card->write);
2019 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2020 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2021 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2022 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2023 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2024
2025 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2026 qeth_cm_enable_cb, NULL);
2027 return rc;
2028}
2029
2030static int
2031qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2032 unsigned long data)
2033{
2034
2035 struct qeth_cmd_buffer *iob;
2036
2037 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2038
2039 iob = (struct qeth_cmd_buffer *) data;
2040 memcpy(&card->token.cm_connection_r,
2041 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2042 QETH_MPC_TOKEN_LENGTH);
2043 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2044 return 0;
2045}
2046
2047static int
2048qeth_cm_setup(struct qeth_card *card)
2049{
2050 int rc;
2051 struct qeth_cmd_buffer *iob;
2052
2053 QETH_DBF_TEXT(setup,2,"cmsetup");
2054
2055 iob = qeth_wait_for_buffer(&card->write);
2056 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2057 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2058 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2059 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2060 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2061 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2062 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2063 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2064 qeth_cm_setup_cb, NULL);
2065 return rc;
2066
2067}
2068
2069static int
2070qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2071 unsigned long data)
2072{
2073
2074 __u16 mtu, framesize;
2075 __u16 len;
2076 __u8 link_type;
2077 struct qeth_cmd_buffer *iob;
2078
2079 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2080
2081 iob = (struct qeth_cmd_buffer *) data;
2082 memcpy(&card->token.ulp_filter_r,
2083 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2084 QETH_MPC_TOKEN_LENGTH);
2085 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2086 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2087 mtu = qeth_get_mtu_outof_framesize(framesize);
2088 if (!mtu) {
2089 iob->rc = -EINVAL;
2090 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2091 return 0;
2092 }
2093 card->info.max_mtu = mtu;
2094 card->info.initial_mtu = mtu;
2095 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2096 } else {
2097 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2098 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2099 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2100 }
2101
2102 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2103 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2104 memcpy(&link_type,
2105 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2106 card->info.link_type = link_type;
2107 } else
2108 card->info.link_type = 0;
2109 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2110 return 0;
2111}
2112
2113static int
2114qeth_ulp_enable(struct qeth_card *card)
2115{
2116 int rc;
2117 char prot_type;
2118 struct qeth_cmd_buffer *iob;
2119
2120 /*FIXME: trace view callbacks*/
2121 QETH_DBF_TEXT(setup,2,"ulpenabl");
2122
2123 iob = qeth_wait_for_buffer(&card->write);
2124 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2125
2126 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2127 (__u8) card->info.portno;
2128 if (card->options.layer2)
500f83ab
UB		 2129 if (card->info.type == QETH_CARD_TYPE_OSN)
2130 prot_type = QETH_PROT_OSN2;
2131 else
2132 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 2133 else
2134 prot_type = QETH_PROT_TCPIP;
2135
2136 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2137 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2138 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2139 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2140 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2141 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2142 card->info.portname, 9);
2143 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2144 qeth_ulp_enable_cb, NULL);
2145 return rc;
2146
2147}
2148
2149static inline __u16
2150__raw_devno_from_bus_id(char *id)
2151{
2152 id += (strlen(id) - 4);
2153 return (__u16) simple_strtoul(id, &id, 16);
2154}
2155
2156static int
2157qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2158 unsigned long data)
2159{
2160 struct qeth_cmd_buffer *iob;
2161
2162 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2163
2164 iob = (struct qeth_cmd_buffer *) data;
2165 memcpy(&card->token.ulp_connection_r,
2166 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2167 QETH_MPC_TOKEN_LENGTH);
2168 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2169 return 0;
2170}
2171
2172static int
2173qeth_ulp_setup(struct qeth_card *card)
2174{
2175 int rc;
2176 __u16 temp;
2177 struct qeth_cmd_buffer *iob;
2178
2179 QETH_DBF_TEXT(setup,2,"ulpsetup");
2180
2181 iob = qeth_wait_for_buffer(&card->write);
2182 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2183
2184 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2185 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2186 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2187 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2188 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2189 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2190
2191 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2192 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2193 temp = (card->info.cula << 8) + card->info.unit_addr2;
2194 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2195 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2196 qeth_ulp_setup_cb, NULL);
2197 return rc;
2198}
2199
2200static inline int
6c6b3e7c
FP		 2201qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2202 unsigned int siga_error, const char *dbftext)
1da177e4 2203{
1da177e4 2204 if (qdio_error || siga_error) {
6c6b3e7c
FP		 2205 QETH_DBF_TEXT(trace, 2, dbftext);
2206 QETH_DBF_TEXT(qerr, 2, dbftext);
1da177e4 2207 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
6c6b3e7c 2208 buf->element[15].flags & 0xff);
1da177e4 2209 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
6c6b3e7c 2210 buf->element[14].flags & 0xff);
1da177e4
LT		 2211 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2212 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
6c6b3e7c 2213 return 1;
1da177e4 2214 }
6c6b3e7c 2215 return 0;
1da177e4
LT		 2216}
2217
2218static inline struct sk_buff *
500f83ab 2219qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
1da177e4
LT		 2220{
2221 struct sk_buff* skb;
500f83ab
UB		 2222 int add_len;
2223
2224 add_len = 0;
2225 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2226 add_len = sizeof(struct qeth_hdr);
1da177e4 2227#ifdef CONFIG_QETH_VLAN
500f83ab
UB		 2228 else
2229 add_len = VLAN_HLEN;
1da177e4 2230#endif
500f83ab
UB		 2231 skb = dev_alloc_skb(length + add_len);
2232 if (skb && add_len)
2233 skb_reserve(skb, add_len);
1da177e4
LT		 2234 return skb;
2235}
2236
2237static inline struct sk_buff *
2238qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2239 struct qdio_buffer_element **__element, int *__offset,
2240 struct qeth_hdr **hdr)
2241{
2242 struct qdio_buffer_element *element = *__element;
2243 int offset = *__offset;
2244 struct sk_buff *skb = NULL;
2245 int skb_len;
2246 void *data_ptr;
2247 int data_len;
2248
2249 QETH_DBF_TEXT(trace,6,"nextskb");
2250 /* qeth_hdr must not cross element boundaries */
2251 if (element->length < offset + sizeof(struct qeth_hdr)){
2252 if (qeth_is_last_sbale(element))
2253 return NULL;
2254 element++;
2255 offset = 0;
2256 if (element->length < sizeof(struct qeth_hdr))
2257 return NULL;
2258 }
2259 *hdr = element->addr + offset;
2260
2261 offset += sizeof(struct qeth_hdr);
2262 if (card->options.layer2)
500f83ab
UB		 2263 if (card->info.type == QETH_CARD_TYPE_OSN)
2264 skb_len = (*hdr)->hdr.osn.pdu_length;
2265 else
2266 skb_len = (*hdr)->hdr.l2.pkt_length;
1da177e4
LT		 2267 else
2268 skb_len = (*hdr)->hdr.l3.length;
2269
2270 if (!skb_len)
2271 return NULL;
2272 if (card->options.fake_ll){
e23dd9cd 2273 if(card->dev->type == ARPHRD_IEEE802_TR){
500f83ab 2274 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
e23dd9cd
FP		 2275 goto no_mem;
2276 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2277 } else {
500f83ab 2278 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
e23dd9cd
FP		 2279 goto no_mem;
2280 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2281 }
500f83ab 2282 } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
1da177e4
LT		 2283 goto no_mem;
2284 data_ptr = element->addr + offset;
2285 while (skb_len) {
2286 data_len = min(skb_len, (int)(element->length - offset));
2287 if (data_len)
2288 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2289 skb_len -= data_len;
2290 if (skb_len){
2291 if (qeth_is_last_sbale(element)){
2292 QETH_DBF_TEXT(trace,4,"unexeob");
2293 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2294 QETH_DBF_TEXT(qerr,2,"unexeob");
2295 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2296 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2297 dev_kfree_skb_any(skb);
2298 card->stats.rx_errors++;
2299 return NULL;
2300 }
2301 element++;
2302 offset = 0;
2303 data_ptr = element->addr;
2304 } else {
2305 offset += data_len;
2306 }
2307 }
2308 *__element = element;
2309 *__offset = offset;
2310 return skb;
2311no_mem:
2312 if (net_ratelimit()){
2313 PRINT_WARN("No memory for packet received on %s.\n",
2314 QETH_CARD_IFNAME(card));
2315 QETH_DBF_TEXT(trace,2,"noskbmem");
2316 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2317 }
2318 card->stats.rx_dropped++;
2319 return NULL;
2320}
2321
ab611487 2322static inline __be16
1da177e4
LT		 2323qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2324{
2325 struct qeth_card *card;
2326 struct ethhdr *eth;
2327
2328 QETH_DBF_TEXT(trace,6,"typtrans");
2329
2330 card = (struct qeth_card *)dev->priv;
2331#ifdef CONFIG_TR
2332 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2333 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2334 return tr_type_trans(skb,dev);
2335#endif /* CONFIG_TR */
2336 skb->mac.raw = skb->data;
2337 skb_pull(skb, ETH_HLEN );
2338 eth = eth_hdr(skb);
2339
2340 if (*eth->h_dest & 1) {
2341 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2342 skb->pkt_type = PACKET_BROADCAST;
2343 else
2344 skb->pkt_type = PACKET_MULTICAST;
2345 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2346 skb->pkt_type = PACKET_OTHERHOST;
2347
2348 if (ntohs(eth->h_proto) >= 1536)
2349 return eth->h_proto;
2350 if (*(unsigned short *) (skb->data) == 0xFFFF)
2351 return htons(ETH_P_802_3);
2352 return htons(ETH_P_802_2);
2353}
2354
2355static inline void
e23dd9cd
FP		 2356qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2357 struct qeth_hdr *hdr)
2358{
2359 struct trh_hdr *fake_hdr;
2360 struct trllc *fake_llc;
2361 struct iphdr *ip_hdr;
2362
2363 QETH_DBF_TEXT(trace,5,"skbfktr");
2364 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2365 /* this is a fake ethernet header */
2366 fake_hdr = (struct trh_hdr *) skb->mac.raw;
2367
2368 /* the destination MAC address */
2369 switch (skb->pkt_type){
2370 case PACKET_MULTICAST:
2371 switch (skb->protocol){
2372#ifdef CONFIG_QETH_IPV6
2373 case __constant_htons(ETH_P_IPV6):
2374 ndisc_mc_map((struct in6_addr *)
2375 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2376 fake_hdr->daddr, card->dev, 0);
2377 break;
2378#endif /* CONFIG_QETH_IPV6 */
2379 case __constant_htons(ETH_P_IP):
2380 ip_hdr = (struct iphdr *)skb->data;
2381 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2382 break;
2383 default:
2384 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2385 }
2386 break;
2387 case PACKET_BROADCAST:
2388 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2389 break;
2390 default:
2391 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2392 }
2393 /* the source MAC address */
2394 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2395 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2396 else
2397 memset(fake_hdr->saddr, 0, TR_ALEN);
2398 fake_hdr->rcf=0;
2399 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2400 fake_llc->dsap = EXTENDED_SAP;
2401 fake_llc->ssap = EXTENDED_SAP;
2402 fake_llc->llc = UI_CMD;
2403 fake_llc->protid[0] = 0;
2404 fake_llc->protid[1] = 0;
2405 fake_llc->protid[2] = 0;
2406 fake_llc->ethertype = ETH_P_IP;
2407}
2408
2409static inline void
2410qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
1da177e4
LT		 2411 struct qeth_hdr *hdr)
2412{
2413 struct ethhdr *fake_hdr;
2414 struct iphdr *ip_hdr;
2415
e23dd9cd
FP		 2416 QETH_DBF_TEXT(trace,5,"skbfketh");
2417 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
1da177e4
LT		 2418 /* this is a fake ethernet header */
2419 fake_hdr = (struct ethhdr *) skb->mac.raw;
2420
2421 /* the destination MAC address */
2422 switch (skb->pkt_type){
2423 case PACKET_MULTICAST:
2424 switch (skb->protocol){
2425#ifdef CONFIG_QETH_IPV6
2426 case __constant_htons(ETH_P_IPV6):
2427 ndisc_mc_map((struct in6_addr *)
2428 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2429 fake_hdr->h_dest, card->dev, 0);
2430 break;
2431#endif /* CONFIG_QETH_IPV6 */
2432 case __constant_htons(ETH_P_IP):
2433 ip_hdr = (struct iphdr *)skb->data;
e23dd9cd 2434 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
1da177e4
LT		 2435 break;
2436 default:
2437 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2438 }
2439 break;
2440 case PACKET_BROADCAST:
2441 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2442 break;
2443 default:
2444 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2445 }
2446 /* the source MAC address */
2447 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2448 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2449 else
2450 memset(fake_hdr->h_source, 0, ETH_ALEN);
2451 /* the protocol */
2452 fake_hdr->h_proto = skb->protocol;
2453}
2454
e23dd9cd
FP		 2455static inline void
2456qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2457 struct qeth_hdr *hdr)
2458{
2459 if (card->dev->type == ARPHRD_IEEE802_TR)
2460 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2461 else
2462 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2463}
2464
1da177e4
LT		 2465static inline void
2466qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2467 struct qeth_hdr *hdr)
2468{
2469#ifdef CONFIG_QETH_VLAN
2470 u16 *vlan_tag;
2471
2472 if (hdr->hdr.l3.ext_flags &
2473 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2474 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2475 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2476 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2477 *(vlan_tag + 1) = skb->protocol;
2478 skb->protocol = __constant_htons(ETH_P_8021Q);
2479 }
2480#endif /* CONFIG_QETH_VLAN */
2481}
2482
2483static inline __u16
2484qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2485 struct qeth_hdr *hdr)
2486{
2487 unsigned short vlan_id = 0;
2488#ifdef CONFIG_QETH_VLAN
2489 struct vlan_hdr *vhdr;
2490#endif
2491
2492 skb->pkt_type = PACKET_HOST;
2493 skb->protocol = qeth_type_trans(skb, skb->dev);
2494 if (card->options.checksum_type == NO_CHECKSUMMING)
2495 skb->ip_summed = CHECKSUM_UNNECESSARY;
2496 else
2497 skb->ip_summed = CHECKSUM_NONE;
2498#ifdef CONFIG_QETH_VLAN
2499 if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2500 vhdr = (struct vlan_hdr *) skb->data;
2501 skb->protocol =
2502 __constant_htons(vhdr->h_vlan_encapsulated_proto);
2503 vlan_id = hdr->hdr.l2.vlan_id;
2504 skb_pull(skb, VLAN_HLEN);
2505 }
2506#endif
9123e0d7 2507 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
1da177e4
LT		 2508 return vlan_id;
2509}
2510
2511static inline void
2512qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2513 struct qeth_hdr *hdr)
2514{
2515#ifdef CONFIG_QETH_IPV6
2516 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2517 skb->pkt_type = PACKET_HOST;
2518 skb->protocol = qeth_type_trans(skb, card->dev);
2519 return;
2520 }
2521#endif /* CONFIG_QETH_IPV6 */
2522 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2523 ETH_P_IP);
2524 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2525 case QETH_CAST_UNICAST:
2526 skb->pkt_type = PACKET_HOST;
2527 break;
2528 case QETH_CAST_MULTICAST:
2529 skb->pkt_type = PACKET_MULTICAST;
2530 card->stats.multicast++;
2531 break;
2532 case QETH_CAST_BROADCAST:
2533 skb->pkt_type = PACKET_BROADCAST;
2534 card->stats.multicast++;
2535 break;
2536 case QETH_CAST_ANYCAST:
2537 case QETH_CAST_NOCAST:
2538 default:
2539 skb->pkt_type = PACKET_HOST;
2540 }
2541 qeth_rebuild_skb_vlan(card, skb, hdr);
2542 if (card->options.fake_ll)
2543 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2544 else
2545 skb->mac.raw = skb->data;
2546 skb->ip_summed = card->options.checksum_type;
2547 if (card->options.checksum_type == HW_CHECKSUMMING){
2548 if ( (hdr->hdr.l3.ext_flags &
2549 (QETH_HDR_EXT_CSUM_HDR_REQ |
2550 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2551 (QETH_HDR_EXT_CSUM_HDR_REQ |
2552 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2553 skb->ip_summed = CHECKSUM_UNNECESSARY;
2554 else
2555 skb->ip_summed = SW_CHECKSUMMING;
2556 }
2557}
2558
2559static inline void
2560qeth_process_inbound_buffer(struct qeth_card *card,
2561 struct qeth_qdio_buffer *buf, int index)
2562{
2563 struct qdio_buffer_element *element;
2564 struct sk_buff *skb;
2565 struct qeth_hdr *hdr;
2566 int offset;
2567 int rxrc;
2568 __u16 vlan_tag = 0;
2569
2570 /* get first element of current buffer */
2571 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2572 offset = 0;
2573#ifdef CONFIG_QETH_PERF_STATS
2574 card->perf_stats.bufs_rec++;
2575#endif
2576 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2577 &offset, &hdr))) {
2578 skb->dev = card->dev;
2579 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2580 vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
e82b0f2c 2581 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
1da177e4 2582 qeth_rebuild_skb(card, skb, hdr);
500f83ab
UB		 2583 else { /*in case of OSN*/
2584 skb_push(skb, sizeof(struct qeth_hdr));
2585 memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2586 }
1da177e4
LT		 2587 /* is device UP ? */
2588 if (!(card->dev->flags & IFF_UP)){
2589 dev_kfree_skb_any(skb);
2590 continue;
2591 }
2592#ifdef CONFIG_QETH_VLAN
2593 if (vlan_tag)
2594 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2595 else
2596#endif
500f83ab
UB		 2597 if (card->info.type == QETH_CARD_TYPE_OSN)
2598 rxrc = card->osn_info.data_cb(skb);
2599 else
2600 rxrc = netif_rx(skb);
1da177e4
LT		 2601 card->dev->last_rx = jiffies;
2602 card->stats.rx_packets++;
2603 card->stats.rx_bytes += skb->len;
2604 }
2605}
2606
2607static inline struct qeth_buffer_pool_entry *
2608qeth_get_buffer_pool_entry(struct qeth_card *card)
2609{
2610 struct qeth_buffer_pool_entry *entry;
2611
2612 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2613 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2614 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2615 struct qeth_buffer_pool_entry, list);
2616 list_del_init(&entry->list);
2617 return entry;
2618 }
2619 return NULL;
2620}
2621
2622static inline void
2623qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2624{
2625 struct qeth_buffer_pool_entry *pool_entry;
2626 int i;
2627
2628 pool_entry = qeth_get_buffer_pool_entry(card);
2629 /*
2630 * since the buffer is accessed only from the input_tasklet
2631 * there shouldn't be a need to synchronize; also, since we use
2632 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2633 * buffers
2634 */
2635 BUG_ON(!pool_entry);
2636
2637 buf->pool_entry = pool_entry;
2638 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2639 buf->buffer->element[i].length = PAGE_SIZE;
2640 buf->buffer->element[i].addr = pool_entry->elements[i];
2641 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2642 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2643 else
2644 buf->buffer->element[i].flags = 0;
2645 }
2646 buf->state = QETH_QDIO_BUF_EMPTY;
2647}
2648
2649static inline void
2650qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2651 struct qeth_qdio_out_buffer *buf)
2652{
2653 int i;
2654 struct sk_buff *skb;
2655
2656 /* is PCI flag set on buffer? */
2657 if (buf->buffer->element[0].flags & 0x40)
2658 atomic_dec(&queue->set_pci_flags_count);
2659
2660 while ((skb = skb_dequeue(&buf->skb_list))){
2661 atomic_dec(&skb->users);
2662 dev_kfree_skb_any(skb);
2663 }
2664 qeth_eddp_buf_release_contexts(buf);
2665 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2666 buf->buffer->element[i].length = 0;
2667 buf->buffer->element[i].addr = NULL;
2668 buf->buffer->element[i].flags = 0;
2669 }
2670 buf->next_element_to_fill = 0;
2671 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2672}
2673
2674static inline void
2675qeth_queue_input_buffer(struct qeth_card *card, int index)
2676{
2677 struct qeth_qdio_q *queue = card->qdio.in_q;
2678 int count;
2679 int i;
2680 int rc;
2681
2682 QETH_DBF_TEXT(trace,6,"queinbuf");
2683 count = (index < queue->next_buf_to_init)?
2684 card->qdio.in_buf_pool.buf_count -
2685 (queue->next_buf_to_init - index) :
2686 card->qdio.in_buf_pool.buf_count -
2687 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2688 /* only requeue at a certain threshold to avoid SIGAs */
2689 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2690 for (i = queue->next_buf_to_init;
2691 i < queue->next_buf_to_init + count; ++i)
2692 qeth_init_input_buffer(card,
2693 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2694 /*
2695 * according to old code it should be avoided to requeue all
2696 * 128 buffers in order to benefit from PCI avoidance.
2697 * this function keeps at least one buffer (the buffer at
2698 * 'index') un-requeued -> this buffer is the first buffer that
2699 * will be requeued the next time
2700 */
2701#ifdef CONFIG_QETH_PERF_STATS
2702 card->perf_stats.inbound_do_qdio_cnt++;
2703 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2704#endif
2705 rc = do_QDIO(CARD_DDEV(card),
2706 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2707 0, queue->next_buf_to_init, count, NULL);
2708#ifdef CONFIG_QETH_PERF_STATS
2709 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2710 card->perf_stats.inbound_do_qdio_start_time;
2711#endif
2712 if (rc){
2713 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2714 "return %i (device %s).\n",
2715 rc, CARD_DDEV_ID(card));
2716 QETH_DBF_TEXT(trace,2,"qinberr");
2717 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2718 }
2719 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2720 QDIO_MAX_BUFFERS_PER_Q;
2721 }
2722}
2723
2724static inline void
2725qeth_put_buffer_pool_entry(struct qeth_card *card,
2726 struct qeth_buffer_pool_entry *entry)
2727{
2728 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2729 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2730}
2731
2732static void
2733qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2734 unsigned int qdio_err, unsigned int siga_err,
2735 unsigned int queue, int first_element, int count,
2736 unsigned long card_ptr)
2737{
2738 struct net_device *net_dev;
2739 struct qeth_card *card;
2740 struct qeth_qdio_buffer *buffer;
2741 int index;
2742 int i;
2743
2744 QETH_DBF_TEXT(trace, 6, "qdinput");
2745 card = (struct qeth_card *) card_ptr;
2746 net_dev = card->dev;
2747#ifdef CONFIG_QETH_PERF_STATS
2748 card->perf_stats.inbound_cnt++;
2749 card->perf_stats.inbound_start_time = qeth_get_micros();
2750#endif
2751 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2752 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2753 QETH_DBF_TEXT(trace, 1,"qdinchk");
2754 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2755 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2756 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2757 qeth_schedule_recovery(card);
2758 return;
2759 }
2760 }
2761 for (i = first_element; i < (first_element + count); ++i) {
2762 index = i % QDIO_MAX_BUFFERS_PER_Q;
2763 buffer = &card->qdio.in_q->bufs[index];
6c6b3e7c 2764 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
e82b0f2c 2765 qeth_check_qdio_errors(buffer->buffer,
6c6b3e7c 2766 qdio_err, siga_err,"qinerr")))
1da177e4
LT		 2767 qeth_process_inbound_buffer(card, buffer, index);
2768 /* clear buffer and give back to hardware */
2769 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2770 qeth_queue_input_buffer(card, index);
2771 }
2772#ifdef CONFIG_QETH_PERF_STATS
2773 card->perf_stats.inbound_time += qeth_get_micros() -
2774 card->perf_stats.inbound_start_time;
2775#endif
2776}
2777
2778static inline int
2779qeth_handle_send_error(struct qeth_card *card,
2780 struct qeth_qdio_out_buffer *buffer,
6c6b3e7c 2781 unsigned int qdio_err, unsigned int siga_err)
1da177e4
LT		 2782{
2783 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2784 int cc = siga_err & 3;
2785
2786 QETH_DBF_TEXT(trace, 6, "hdsnderr");
6c6b3e7c 2787 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
1da177e4
LT		 2788 switch (cc) {
2789 case 0:
2790 if (qdio_err){
2791 QETH_DBF_TEXT(trace, 1,"lnkfail");
2792 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2793 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2794 (u16)qdio_err, (u8)sbalf15);
2795 return QETH_SEND_ERROR_LINK_FAILURE;
2796 }
2797 return QETH_SEND_ERROR_NONE;
2798 case 2:
2799 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2800 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2801 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2802 return QETH_SEND_ERROR_KICK_IT;
2803 }
2804 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2805 return QETH_SEND_ERROR_RETRY;
2806 return QETH_SEND_ERROR_LINK_FAILURE;
2807 /* look at qdio_error and sbalf 15 */
2808 case 1:
2809 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2810 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2811 return QETH_SEND_ERROR_LINK_FAILURE;
2812 case 3:
1380fee2 2813 default:
1da177e4
LT		 2814 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2815 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2816 return QETH_SEND_ERROR_KICK_IT;
2817 }
1da177e4
LT		 2818}
2819
2820void
2821qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2822 int index, int count)
2823{
2824 struct qeth_qdio_out_buffer *buf;
2825 int rc;
2826 int i;
2827
2828 QETH_DBF_TEXT(trace, 6, "flushbuf");
2829
2830 for (i = index; i < index + count; ++i) {
2831 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2832 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2833 SBAL_FLAGS_LAST_ENTRY;
2834
2835 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2836 continue;
2837
2838 if (!queue->do_pack){
2839 if ((atomic_read(&queue->used_buffers) >=
2840 (QETH_HIGH_WATERMARK_PACK -
2841 QETH_WATERMARK_PACK_FUZZ)) &&
2842 !atomic_read(&queue->set_pci_flags_count)){
2843 /* it's likely that we'll go to packing
2844 * mode soon */
2845 atomic_inc(&queue->set_pci_flags_count);
2846 buf->buffer->element[0].flags |= 0x40;
2847 }
2848 } else {
2849 if (!atomic_read(&queue->set_pci_flags_count)){
2850 /*
2851 * there's no outstanding PCI any more, so we
2852 * have to request a PCI to be sure the the PCI
2853 * will wake at some time in the future then we
2854 * can flush packed buffers that might still be
2855 * hanging around, which can happen if no
2856 * further send was requested by the stack
2857 */
2858 atomic_inc(&queue->set_pci_flags_count);
2859 buf->buffer->element[0].flags |= 0x40;
2860 }
2861 }
2862 }
2863
2864 queue->card->dev->trans_start = jiffies;
2865#ifdef CONFIG_QETH_PERF_STATS
2866 queue->card->perf_stats.outbound_do_qdio_cnt++;
2867 queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2868#endif
2869 if (under_int)
2870 rc = do_QDIO(CARD_DDEV(queue->card),
2871 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2872 queue->queue_no, index, count, NULL);
2873 else
2874 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2875 queue->queue_no, index, count, NULL);
2876#ifdef CONFIG_QETH_PERF_STATS
2877 queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2878 queue->card->perf_stats.outbound_do_qdio_start_time;
2879#endif
2880 if (rc){
1da177e4
LT		 2881 QETH_DBF_TEXT(trace, 2, "flushbuf");
2882 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
f3d242e8 2883 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
1da177e4
LT		 2884 queue->card->stats.tx_errors += count;
2885 /* this must not happen under normal circumstances. if it
2886 * happens something is really wrong -> recover */
2887 qeth_schedule_recovery(queue->card);
2888 return;
2889 }
2890 atomic_add(count, &queue->used_buffers);
2891#ifdef CONFIG_QETH_PERF_STATS
2892 queue->card->perf_stats.bufs_sent += count;
2893#endif
2894}
2895
2896/*
2897 * Switched to packing state if the number of used buffers on a queue
2898 * reaches a certain limit.
2899 */
2900static inline void
2901qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2902{
2903 if (!queue->do_pack) {
2904 if (atomic_read(&queue->used_buffers)
2905 >= QETH_HIGH_WATERMARK_PACK){
2906 /* switch non-PACKING -> PACKING */
2907 QETH_DBF_TEXT(trace, 6, "np->pack");
2908#ifdef CONFIG_QETH_PERF_STATS
2909 queue->card->perf_stats.sc_dp_p++;
2910#endif
2911 queue->do_pack = 1;
2912 }
2913 }
2914}
2915
2916/*
2917 * Switches from packing to non-packing mode. If there is a packing
2918 * buffer on the queue this buffer will be prepared to be flushed.
2919 * In that case 1 is returned to inform the caller. If no buffer
2920 * has to be flushed, zero is returned.
2921 */
2922static inline int
2923qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2924{
2925 struct qeth_qdio_out_buffer *buffer;
2926 int flush_count = 0;
2927
2928 if (queue->do_pack) {
2929 if (atomic_read(&queue->used_buffers)
2930 <= QETH_LOW_WATERMARK_PACK) {
2931 /* switch PACKING -> non-PACKING */
2932 QETH_DBF_TEXT(trace, 6, "pack->np");
2933#ifdef CONFIG_QETH_PERF_STATS
2934 queue->card->perf_stats.sc_p_dp++;
2935#endif
2936 queue->do_pack = 0;
2937 /* flush packing buffers */
2938 buffer = &queue->bufs[queue->next_buf_to_fill];
2939 if ((atomic_read(&buffer->state) ==
2940 QETH_QDIO_BUF_EMPTY) &&
2941 (buffer->next_element_to_fill > 0)) {
2942 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2943 flush_count++;
2944 queue->next_buf_to_fill =
2945 (queue->next_buf_to_fill + 1) %
2946 QDIO_MAX_BUFFERS_PER_Q;
2947 }
2948 }
2949 }
2950 return flush_count;
2951}
2952
2953/*
2954 * Called to flush a packing buffer if no more pci flags are on the queue.
2955 * Checks if there is a packing buffer and prepares it to be flushed.
2956 * In that case returns 1, otherwise zero.
2957 */
2958static inline int
2959qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2960{
2961 struct qeth_qdio_out_buffer *buffer;
2962
2963 buffer = &queue->bufs[queue->next_buf_to_fill];
2964 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2965 (buffer->next_element_to_fill > 0)){
2966 /* it's a packing buffer */
2967 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2968 queue->next_buf_to_fill =
2969 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2970 return 1;
2971 }
2972 return 0;
2973}
2974
2975static inline void
2976qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2977{
2978 int index;
2979 int flush_cnt = 0;
2980 int q_was_packing = 0;
2981
2982 /*
2983 * check if weed have to switch to non-packing mode or if
2984 * we have to get a pci flag out on the queue
2985 */
2986 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2987 !atomic_read(&queue->set_pci_flags_count)){
2988 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2989 QETH_OUT_Q_UNLOCKED) {
2990 /*
2991 * If we get in here, there was no action in
2992 * do_send_packet. So, we check if there is a
2993 * packing buffer to be flushed here.
2994 */
2995 netif_stop_queue(queue->card->dev);
2996 index = queue->next_buf_to_fill;
2997 q_was_packing = queue->do_pack;
2998 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2999 if (!flush_cnt &&
3000 !atomic_read(&queue->set_pci_flags_count))
3001 flush_cnt +=
3002 qeth_flush_buffers_on_no_pci(queue);
3003#ifdef CONFIG_QETH_PERF_STATS
3004 if (q_was_packing)
3005 queue->card->perf_stats.bufs_sent_pack +=
3006 flush_cnt;
3007#endif
3008 if (flush_cnt)
3009 qeth_flush_buffers(queue, 1, index, flush_cnt);
3010 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3011 }
3012 }
3013}
3014
3015static void
3016qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3017 unsigned int qdio_error, unsigned int siga_error,
3018 unsigned int __queue, int first_element, int count,
3019 unsigned long card_ptr)
3020{
3021 struct qeth_card *card = (struct qeth_card *) card_ptr;
3022 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3023 struct qeth_qdio_out_buffer *buffer;
3024 int i;
3025
3026 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3027 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3028 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
f3d242e8
FP		 3029 QETH_DBF_TEXT(trace, 2, "achkcond");
3030 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
1da177e4
LT		 3031 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3032 netif_stop_queue(card->dev);
3033 qeth_schedule_recovery(card);
3034 return;
3035 }
3036 }
3037#ifdef CONFIG_QETH_PERF_STATS
3038 card->perf_stats.outbound_handler_cnt++;
3039 card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3040#endif
3041 for(i = first_element; i < (first_element + count); ++i){
3042 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3043 /*we only handle the KICK_IT error by doing a recovery */
6c6b3e7c
FP		 3044 if (qeth_handle_send_error(card, buffer,
3045 qdio_error, siga_error)
1da177e4
LT		 3046 == QETH_SEND_ERROR_KICK_IT){
3047 netif_stop_queue(card->dev);
3048 qeth_schedule_recovery(card);
3049 return;
3050 }
3051 qeth_clear_output_buffer(queue, buffer);
3052 }
3053 atomic_sub(count, &queue->used_buffers);
3054 /* check if we need to do something on this outbound queue */
3055 if (card->info.type != QETH_CARD_TYPE_IQD)
3056 qeth_check_outbound_queue(queue);
3057
3058 netif_wake_queue(queue->card->dev);
3059#ifdef CONFIG_QETH_PERF_STATS
3060 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3061 card->perf_stats.outbound_handler_start_time;
3062#endif
3063}
3064
3065static void
3066qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3067{
3068
3069 param_field[0] = _ascebc['P'];
3070 param_field[1] = _ascebc['C'];
3071 param_field[2] = _ascebc['I'];
3072 param_field[3] = _ascebc['T'];
3073 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3074 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3075 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3076}
3077
3078static void
3079qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3080{
3081 param_field[16] = _ascebc['B'];
3082 param_field[17] = _ascebc['L'];
3083 param_field[18] = _ascebc['K'];
3084 param_field[19] = _ascebc['T'];
3085 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3086 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3087 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3088}
3089
3090static void
3091qeth_initialize_working_pool_list(struct qeth_card *card)
3092{
3093 struct qeth_buffer_pool_entry *entry;
3094
3095 QETH_DBF_TEXT(trace,5,"inwrklst");
3096
3097 list_for_each_entry(entry,
3098 &card->qdio.init_pool.entry_list, init_list) {
3099 qeth_put_buffer_pool_entry(card,entry);
3100 }
3101}
3102
3103static void
3104qeth_clear_working_pool_list(struct qeth_card *card)
3105{
3106 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3107
3108 QETH_DBF_TEXT(trace,5,"clwrklst");
3109 list_for_each_entry_safe(pool_entry, tmp,
3110 &card->qdio.in_buf_pool.entry_list, list){
3111 list_del(&pool_entry->list);
3112 }
3113}
3114
3115static void
3116qeth_free_buffer_pool(struct qeth_card *card)
3117{
3118 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3119 int i=0;
3120 QETH_DBF_TEXT(trace,5,"freepool");
3121 list_for_each_entry_safe(pool_entry, tmp,
3122 &card->qdio.init_pool.entry_list, init_list){
3123 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3124 free_page((unsigned long)pool_entry->elements[i]);
3125 list_del(&pool_entry->init_list);
3126 kfree(pool_entry);
3127 }
3128}
3129
3130static int
3131qeth_alloc_buffer_pool(struct qeth_card *card)
3132{
3133 struct qeth_buffer_pool_entry *pool_entry;
3134 void *ptr;
3135 int i, j;
3136
3137 QETH_DBF_TEXT(trace,5,"alocpool");
3138 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3139 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3140 if (!pool_entry){
3141 qeth_free_buffer_pool(card);
3142 return -ENOMEM;
3143 }
3144 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
9123e0d7 3145 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3146 if (!ptr) {
3147 while (j > 0)
3148 free_page((unsigned long)
3149 pool_entry->elements[--j]);
3150 kfree(pool_entry);
3151 qeth_free_buffer_pool(card);
3152 return -ENOMEM;
3153 }
3154 pool_entry->elements[j] = ptr;
3155 }
3156 list_add(&pool_entry->init_list,
3157 &card->qdio.init_pool.entry_list);
3158 }
3159 return 0;
3160}
3161
3162int
3163qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3164{
3165 QETH_DBF_TEXT(trace, 2, "realcbp");
3166
3167 if ((card->state != CARD_STATE_DOWN) &&
3168 (card->state != CARD_STATE_RECOVER))
3169 return -EPERM;
3170
3171 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3172 qeth_clear_working_pool_list(card);
3173 qeth_free_buffer_pool(card);
3174 card->qdio.in_buf_pool.buf_count = bufcnt;
3175 card->qdio.init_pool.buf_count = bufcnt;
3176 return qeth_alloc_buffer_pool(card);
3177}
3178
3179static int
3180qeth_alloc_qdio_buffers(struct qeth_card *card)
3181{
3182 int i, j;
3183
3184 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3185
3186 if (card->qdio.state == QETH_QDIO_ALLOCATED)
3187 return 0;
3188
e82b0f2c 3189 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
9123e0d7 3190 GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3191 if (!card->qdio.in_q)
3192 return - ENOMEM;
3193 QETH_DBF_TEXT(setup, 2, "inq");
3194 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3195 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3196 /* give inbound qeth_qdio_buffers their qdio_buffers */
3197 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3198 card->qdio.in_q->bufs[i].buffer =
3199 &card->qdio.in_q->qdio_bufs[i];
3200 /* inbound buffer pool */
3201 if (qeth_alloc_buffer_pool(card)){
3202 kfree(card->qdio.in_q);
3203 return -ENOMEM;
3204 }
3205 /* outbound */
3206 card->qdio.out_qs =
3207 kmalloc(card->qdio.no_out_queues *
3208 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3209 if (!card->qdio.out_qs){
3210 qeth_free_buffer_pool(card);
3211 return -ENOMEM;
3212 }
3213 for (i = 0; i < card->qdio.no_out_queues; ++i){
3214 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
9123e0d7 3215 GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3216 if (!card->qdio.out_qs[i]){
3217 while (i > 0)
3218 kfree(card->qdio.out_qs[--i]);
3219 kfree(card->qdio.out_qs);
3220 return -ENOMEM;
3221 }
3222 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3223 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3224 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3225 card->qdio.out_qs[i]->queue_no = i;
3226 /* give outbound qeth_qdio_buffers their qdio_buffers */
3227 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3228 card->qdio.out_qs[i]->bufs[j].buffer =
3229 &card->qdio.out_qs[i]->qdio_bufs[j];
3230 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3231 skb_list);
3232 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3233 }
3234 }
3235 card->qdio.state = QETH_QDIO_ALLOCATED;
3236 return 0;
3237}
3238
3239static void
3240qeth_free_qdio_buffers(struct qeth_card *card)
3241{
3242 int i, j;
3243
3244 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3245 if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3246 return;
3247 kfree(card->qdio.in_q);
3248 /* inbound buffer pool */
3249 qeth_free_buffer_pool(card);
3250 /* free outbound qdio_qs */
3251 for (i = 0; i < card->qdio.no_out_queues; ++i){
3252 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3253 qeth_clear_output_buffer(card->qdio.out_qs[i],
3254 &card->qdio.out_qs[i]->bufs[j]);
3255 kfree(card->qdio.out_qs[i]);
3256 }
3257 kfree(card->qdio.out_qs);
3258 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3259}
3260
3261static void
3262qeth_clear_qdio_buffers(struct qeth_card *card)
3263{
3264 int i, j;
3265
3266 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3267 /* clear outbound buffers to free skbs */
3268 for (i = 0; i < card->qdio.no_out_queues; ++i)
3269 if (card->qdio.out_qs[i]){
3270 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3271 qeth_clear_output_buffer(card->qdio.out_qs[i],
3272 &card->qdio.out_qs[i]->bufs[j]);
3273 }
3274}
3275
3276static void
3277qeth_init_qdio_info(struct qeth_card *card)
3278{
3279 QETH_DBF_TEXT(setup, 4, "intqdinf");
3280 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3281 /* inbound */
3282 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3283 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3284 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3285 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3286 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1da177e4
LT		 3287}
3288
3289static int
3290qeth_init_qdio_queues(struct qeth_card *card)
3291{
3292 int i, j;
3293 int rc;
3294
3295 QETH_DBF_TEXT(setup, 2, "initqdqs");
3296
3297 /* inbound queue */
3298 memset(card->qdio.in_q->qdio_bufs, 0,
3299 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3300 qeth_initialize_working_pool_list(card);
3301 /*give only as many buffers to hardware as we have buffer pool entries*/
3302 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3303 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3304 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3305 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3306 card->qdio.in_buf_pool.buf_count - 1, NULL);
3307 if (rc) {
3308 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3309 return rc;
3310 }
3311 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3312 if (rc) {
3313 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3314 return rc;
3315 }
3316 /* outbound queue */
3317 for (i = 0; i < card->qdio.no_out_queues; ++i){
3318 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3319 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3320 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3321 qeth_clear_output_buffer(card->qdio.out_qs[i],
3322 &card->qdio.out_qs[i]->bufs[j]);
3323 }
3324 card->qdio.out_qs[i]->card = card;
3325 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3326 card->qdio.out_qs[i]->do_pack = 0;
3327 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3328 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3329 atomic_set(&card->qdio.out_qs[i]->state,
3330 QETH_OUT_Q_UNLOCKED);
3331 }
3332 return 0;
3333}
3334
3335static int
3336qeth_qdio_establish(struct qeth_card *card)
3337{
3338 struct qdio_initialize init_data;
3339 char *qib_param_field;
3340 struct qdio_buffer **in_sbal_ptrs;
3341 struct qdio_buffer **out_sbal_ptrs;
3342 int i, j, k;
3343 int rc;
3344
3345 QETH_DBF_TEXT(setup, 2, "qdioest");
3346
88abaab4 3347 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
1da177e4
LT		 3348 GFP_KERNEL);
3349 if (!qib_param_field)
3350 return -ENOMEM;
3351
1da177e4
LT		 3352 qeth_create_qib_param_field(card, qib_param_field);
3353 qeth_create_qib_param_field_blkt(card, qib_param_field);
3354
3355 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3356 GFP_KERNEL);
3357 if (!in_sbal_ptrs) {
3358 kfree(qib_param_field);
3359 return -ENOMEM;
3360 }
3361 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3362 in_sbal_ptrs[i] = (struct qdio_buffer *)
3363 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3364
3365 out_sbal_ptrs =
3366 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3367 sizeof(void *), GFP_KERNEL);
3368 if (!out_sbal_ptrs) {
3369 kfree(in_sbal_ptrs);
3370 kfree(qib_param_field);
3371 return -ENOMEM;
3372 }
3373 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3374 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3375 out_sbal_ptrs[k] = (struct qdio_buffer *)
3376 virt_to_phys(card->qdio.out_qs[i]->
3377 bufs[j].buffer);
3378 }
3379
3380 memset(&init_data, 0, sizeof(struct qdio_initialize));
3381 init_data.cdev = CARD_DDEV(card);
3382 init_data.q_format = qeth_get_qdio_q_format(card);
3383 init_data.qib_param_field_format = 0;
3384 init_data.qib_param_field = qib_param_field;
3385 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3386 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3387 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3388 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3389 init_data.no_input_qs = 1;
3390 init_data.no_output_qs = card->qdio.no_out_queues;
3391 init_data.input_handler = (qdio_handler_t *)
3392 qeth_qdio_input_handler;
3393 init_data.output_handler = (qdio_handler_t *)
3394 qeth_qdio_output_handler;
3395 init_data.int_parm = (unsigned long) card;
3396 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3397 QDIO_OUTBOUND_0COPY_SBALS |
3398 QDIO_USE_OUTBOUND_PCIS;
3399 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3400 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3401
3402 if (!(rc = qdio_initialize(&init_data)))
3403 card->qdio.state = QETH_QDIO_ESTABLISHED;
3404
3405 kfree(out_sbal_ptrs);
3406 kfree(in_sbal_ptrs);
3407 kfree(qib_param_field);
3408 return rc;
3409}
3410
3411static int
3412qeth_qdio_activate(struct qeth_card *card)
3413{
3414 QETH_DBF_TEXT(setup,3,"qdioact");
3415 return qdio_activate(CARD_DDEV(card), 0);
3416}
3417
3418static int
3419qeth_clear_channel(struct qeth_channel *channel)
3420{
3421 unsigned long flags;
3422 struct qeth_card *card;
3423 int rc;
3424
3425 QETH_DBF_TEXT(trace,3,"clearch");
3426 card = CARD_FROM_CDEV(channel->ccwdev);
3427 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3428 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3429 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3430
3431 if (rc)
3432 return rc;
3433 rc = wait_event_interruptible_timeout(card->wait_q,
3434 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3435 if (rc == -ERESTARTSYS)
3436 return rc;
3437 if (channel->state != CH_STATE_STOPPED)
3438 return -ETIME;
3439 channel->state = CH_STATE_DOWN;
3440 return 0;
3441}
3442
3443static int
3444qeth_halt_channel(struct qeth_channel *channel)
3445{
3446 unsigned long flags;
3447 struct qeth_card *card;
3448 int rc;
3449
3450 QETH_DBF_TEXT(trace,3,"haltch");
3451 card = CARD_FROM_CDEV(channel->ccwdev);
3452 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3453 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3454 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3455
3456 if (rc)
3457 return rc;
3458 rc = wait_event_interruptible_timeout(card->wait_q,
3459 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3460 if (rc == -ERESTARTSYS)
3461 return rc;
3462 if (channel->state != CH_STATE_HALTED)
3463 return -ETIME;
3464 return 0;
3465}
3466
3467static int
3468qeth_halt_channels(struct qeth_card *card)
3469{
f3d242e8 3470 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3471
3472 QETH_DBF_TEXT(trace,3,"haltchs");
f3d242e8
FP		 3473 rc1 = qeth_halt_channel(&card->read);
3474 rc2 = qeth_halt_channel(&card->write);
3475 rc3 = qeth_halt_channel(&card->data);
3476 if (rc1)
3477 return rc1;
e82b0f2c 3478 if (rc2)
f3d242e8
FP		 3479 return rc2;
3480 return rc3;
1da177e4
LT		 3481}
3482static int
3483qeth_clear_channels(struct qeth_card *card)
3484{
f3d242e8 3485 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3486
3487 QETH_DBF_TEXT(trace,3,"clearchs");
f3d242e8
FP		 3488 rc1 = qeth_clear_channel(&card->read);
3489 rc2 = qeth_clear_channel(&card->write);
3490 rc3 = qeth_clear_channel(&card->data);
3491 if (rc1)
3492 return rc1;
e82b0f2c 3493 if (rc2)
f3d242e8
FP		 3494 return rc2;
3495 return rc3;
1da177e4
LT		 3496}
3497
3498static int
3499qeth_clear_halt_card(struct qeth_card *card, int halt)
3500{
3501 int rc = 0;
3502
3503 QETH_DBF_TEXT(trace,3,"clhacrd");
3504 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3505
3506 if (halt)
3507 rc = qeth_halt_channels(card);
3508 if (rc)
3509 return rc;
3510 return qeth_clear_channels(card);
3511}
3512
3513static int
3514qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3515{
3516 int rc = 0;
3517
3518 QETH_DBF_TEXT(trace,3,"qdioclr");
3519 if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3520 if ((rc = qdio_cleanup(CARD_DDEV(card),
3521 (card->info.type == QETH_CARD_TYPE_IQD) ?
3522 QDIO_FLAG_CLEANUP_USING_HALT :
3523 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3524 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3525 card->qdio.state = QETH_QDIO_ALLOCATED;
3526 }
3527 if ((rc = qeth_clear_halt_card(card, use_halt)))
3528 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3529 card->state = CARD_STATE_DOWN;
3530 return rc;
3531}
3532
3533static int
3534qeth_dm_act(struct qeth_card *card)
3535{
3536 int rc;
3537 struct qeth_cmd_buffer *iob;
3538
3539 QETH_DBF_TEXT(setup,2,"dmact");
3540
3541 iob = qeth_wait_for_buffer(&card->write);
3542 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3543
3544 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3545 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3546 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3547 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3548 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3549 return rc;
3550}
3551
3552static int
3553qeth_mpc_initialize(struct qeth_card *card)
3554{
3555 int rc;
3556
3557 QETH_DBF_TEXT(setup,2,"mpcinit");
3558
3559 if ((rc = qeth_issue_next_read(card))){
3560 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3561 return rc;
3562 }
3563 if ((rc = qeth_cm_enable(card))){
3564 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
f3d242e8 3565 goto out_qdio;
1da177e4
LT		 3566 }
3567 if ((rc = qeth_cm_setup(card))){
3568 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
f3d242e8 3569 goto out_qdio;
1da177e4
LT		 3570 }
3571 if ((rc = qeth_ulp_enable(card))){
3572 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
f3d242e8 3573 goto out_qdio;
1da177e4
LT		 3574 }
3575 if ((rc = qeth_ulp_setup(card))){
3576 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3577 goto out_qdio;
1da177e4
LT		 3578 }
3579 if ((rc = qeth_alloc_qdio_buffers(card))){
3580 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3581 goto out_qdio;
1da177e4
LT		 3582 }
3583 if ((rc = qeth_qdio_establish(card))){
3584 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3585 qeth_free_qdio_buffers(card);
3586 goto out_qdio;
3587 }
3588 if ((rc = qeth_qdio_activate(card))){
3589 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3590 goto out_qdio;
3591 }
3592 if ((rc = qeth_dm_act(card))){
3593 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3594 goto out_qdio;
3595 }
3596
3597 return 0;
3598out_qdio:
500f83ab 3599 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 3600 return rc;
3601}
3602
3603static struct net_device *
3604qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3605{
3606 struct net_device *dev = NULL;
3607
3608 switch (type) {
3609 case QETH_CARD_TYPE_OSAE:
3610 switch (linktype) {
3611 case QETH_LINK_TYPE_LANE_TR:
3612 case QETH_LINK_TYPE_HSTR:
3613#ifdef CONFIG_TR
3614 dev = alloc_trdev(0);
3615#endif /* CONFIG_TR */
3616 break;
3617 default:
3618 dev = alloc_etherdev(0);
3619 }
3620 break;
3621 case QETH_CARD_TYPE_IQD:
3622 dev = alloc_netdev(0, "hsi%d", ether_setup);
3623 break;
500f83ab
UB		 3624 case QETH_CARD_TYPE_OSN:
3625 dev = alloc_netdev(0, "osn%d", ether_setup);
3626 break;
1da177e4
LT		 3627 default:
3628 dev = alloc_etherdev(0);
3629 }
3630 return dev;
3631}
3632
3633/*hard_header fake function; used in case fake_ll is set */
3634static int
3635qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3636 unsigned short type, void *daddr, void *saddr,
3637 unsigned len)
3638{
e23dd9cd
FP		 3639 if(dev->type == ARPHRD_IEEE802_TR){
3640 struct trh_hdr *hdr;
3641 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3642 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3643 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3644 return QETH_FAKE_LL_LEN_TR;
3645
3646 } else {
3647 struct ethhdr *hdr;
3648 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3649 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3650 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3651 if (type != ETH_P_802_3)
3652 hdr->h_proto = htons(type);
3653 else
3654 hdr->h_proto = htons(len);
3655 return QETH_FAKE_LL_LEN_ETH;
1da177e4 3656
e23dd9cd 3657 }
1da177e4
LT		 3658}
3659
3660static inline int
3661qeth_send_packet(struct qeth_card *, struct sk_buff *);
3662
3663static int
3664qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3665{
3666 int rc;
3667 struct qeth_card *card;
3668
3669 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3670 card = (struct qeth_card *)dev->priv;
3671 if (skb==NULL) {
3672 card->stats.tx_dropped++;
3673 card->stats.tx_errors++;
3674 /* return OK; otherwise ksoftirqd goes to 100% */
3675 return NETDEV_TX_OK;
3676 }
3677 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3678 card->stats.tx_dropped++;
3679 card->stats.tx_errors++;
3680 card->stats.tx_carrier_errors++;
3681 dev_kfree_skb_any(skb);
3682 /* return OK; otherwise ksoftirqd goes to 100% */
3683 return NETDEV_TX_OK;
3684 }
3685#ifdef CONFIG_QETH_PERF_STATS
3686 card->perf_stats.outbound_cnt++;
3687 card->perf_stats.outbound_start_time = qeth_get_micros();
3688#endif
3689 netif_stop_queue(dev);
3690 if ((rc = qeth_send_packet(card, skb))) {
3691 if (rc == -EBUSY) {
3692 return NETDEV_TX_BUSY;
3693 } else {
3694 card->stats.tx_errors++;
3695 card->stats.tx_dropped++;
3696 dev_kfree_skb_any(skb);
3697 /*set to OK; otherwise ksoftirqd goes to 100% */
3698 rc = NETDEV_TX_OK;
3699 }
3700 }
3701 netif_wake_queue(dev);
3702#ifdef CONFIG_QETH_PERF_STATS
3703 card->perf_stats.outbound_time += qeth_get_micros() -
3704 card->perf_stats.outbound_start_time;
3705#endif
3706 return rc;
3707}
3708
3709static int
3710qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3711{
3712 int rc = 0;
3713#ifdef CONFIG_QETH_VLAN
3714 struct vlan_group *vg;
3715 int i;
3716
3717 if (!(vg = card->vlangrp))
3718 return rc;
3719
3720 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3721 if (vg->vlan_devices[i] == dev){
3722 rc = QETH_VLAN_CARD;
3723 break;
3724 }
3725 }
6c6b3e7c
FP		 3726 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3727 return 0;
3728
1da177e4
LT		 3729#endif
3730 return rc;
3731}
3732
3733static int
3734qeth_verify_dev(struct net_device *dev)
3735{
3736 struct qeth_card *card;
3737 unsigned long flags;
3738 int rc = 0;
3739
3740 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3741 list_for_each_entry(card, &qeth_card_list.list, list){
3742 if (card->dev == dev){
3743 rc = QETH_REAL_CARD;
3744 break;
3745 }
3746 rc = qeth_verify_vlan_dev(dev, card);
3747 if (rc)
3748 break;
3749 }
3750 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3751
3752 return rc;
3753}
3754
3755static struct qeth_card *
3756qeth_get_card_from_dev(struct net_device *dev)
3757{
3758 struct qeth_card *card = NULL;
3759 int rc;
3760
3761 rc = qeth_verify_dev(dev);
3762 if (rc == QETH_REAL_CARD)
3763 card = (struct qeth_card *)dev->priv;
3764 else if (rc == QETH_VLAN_CARD)
3765 card = (struct qeth_card *)
3766 VLAN_DEV_INFO(dev)->real_dev->priv;
3767
3768 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3769 return card ;
3770}
3771
3772static void
3773qeth_tx_timeout(struct net_device *dev)
3774{
3775 struct qeth_card *card;
3776
3777 card = (struct qeth_card *) dev->priv;
3778 card->stats.tx_errors++;
3779 qeth_schedule_recovery(card);
3780}
3781
3782static int
3783qeth_open(struct net_device *dev)
3784{
3785 struct qeth_card *card;
3786
3787 QETH_DBF_TEXT(trace, 4, "qethopen");
3788
3789 card = (struct qeth_card *) dev->priv;
3790
3791 if (card->state != CARD_STATE_SOFTSETUP)
3792 return -ENODEV;
3793
500f83ab
UB		 3794 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3795 (card->options.layer2) &&
e08d88cc 3796 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
1da177e4
LT		 3797 QETH_DBF_TEXT(trace,4,"nomacadr");
3798 return -EPERM;
3799 }
1da177e4
LT		 3800 card->data.state = CH_STATE_UP;
3801 card->state = CARD_STATE_UP;
ba1aa084
UB		 3802 card->dev->flags |= IFF_UP;
3803 netif_start_queue(dev);
e82b0f2c 3804
4965e97f
FP		 3805 if (!card->lan_online && netif_carrier_ok(dev))
3806 netif_carrier_off(dev);
1da177e4
LT		 3807 return 0;
3808}
3809
3810static int
3811qeth_stop(struct net_device *dev)
3812{
3813 struct qeth_card *card;
3814
3815 QETH_DBF_TEXT(trace, 4, "qethstop");
3816
3817 card = (struct qeth_card *) dev->priv;
3818
b85e1fa1 3819 netif_tx_disable(dev);
1da177e4
LT		 3820 card->dev->flags &= ~IFF_UP;
3821 if (card->state == CARD_STATE_UP)
3822 card->state = CARD_STATE_SOFTSETUP;
3823 return 0;
3824}
3825
3826static inline int
3827qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3828{
3829 int cast_type = RTN_UNSPEC;
3830
500f83ab
UB		 3831 if (card->info.type == QETH_CARD_TYPE_OSN)
3832 return cast_type;
3833
1da177e4
LT		 3834 if (skb->dst && skb->dst->neighbour){
3835 cast_type = skb->dst->neighbour->type;
3836 if ((cast_type == RTN_BROADCAST) ||
3837 (cast_type == RTN_MULTICAST) ||
3838 (cast_type == RTN_ANYCAST))
3839 return cast_type;
3840 else
3841 return RTN_UNSPEC;
3842 }
3843 /* try something else */
3844 if (skb->protocol == ETH_P_IPV6)
3845 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3846 else if (skb->protocol == ETH_P_IP)
3847 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3848 /* ... */
3849 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3850 return RTN_BROADCAST;
3851 else {
3852 u16 hdr_mac;
3853
3854 hdr_mac = *((u16 *)skb->data);
3855 /* tr multicast? */
3856 switch (card->info.link_type) {
3857 case QETH_LINK_TYPE_HSTR:
3858 case QETH_LINK_TYPE_LANE_TR:
3859 if ((hdr_mac == QETH_TR_MAC_NC) ||
3860 (hdr_mac == QETH_TR_MAC_C))
3861 return RTN_MULTICAST;
1380fee2 3862 break;
1da177e4
LT		 3863 /* eth or so multicast? */
3864 default:
3865 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3866 (hdr_mac == QETH_ETH_MAC_V6))
3867 return RTN_MULTICAST;
3868 }
3869 }
3870 return cast_type;
3871}
3872
3873static inline int
3874qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3875 int ipv, int cast_type)
3876{
3877 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3878 return card->qdio.default_out_queue;
3879 switch (card->qdio.no_out_queues) {
3880 case 4:
3881 if (cast_type && card->info.is_multicast_different)
3882 return card->info.is_multicast_different &
3883 (card->qdio.no_out_queues - 1);
3884 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3885 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3886 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3887 return 3;
3888 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3889 return 2;
3890 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3891 return 1;
3892 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3893 return 0;
3894 }
3895 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3896 return 3 - (skb->nh.iph->tos >> 6);
3897 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3898 /* TODO: IPv6!!! */
3899 }
3900 return card->qdio.default_out_queue;
3901 case 1: /* fallthrough for single-out-queue 1920-device */
3902 default:
3903 return card->qdio.default_out_queue;
3904 }
3905}
3906
3907static inline int
3908qeth_get_ip_version(struct sk_buff *skb)
3909{
3910 switch (skb->protocol) {
3911 case ETH_P_IPV6:
3912 return 6;
3913 case ETH_P_IP:
3914 return 4;
3915 default:
3916 return 0;
3917 }
3918}
3919
3920static inline int
3921qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3922 struct qeth_hdr **hdr, int ipv)
3923{
500f83ab 3924 int rc = 0;
1da177e4
LT		 3925#ifdef CONFIG_QETH_VLAN
3926 u16 *tag;
3927#endif
3928
3929 QETH_DBF_TEXT(trace, 6, "prepskb");
500f83ab
UB		 3930 if (card->info.type == QETH_CARD_TYPE_OSN) {
3931 *hdr = (struct qeth_hdr *)(*skb)->data;
3932 return rc;
3933 }
9cb90de8
FP		 3934 rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3935 if (rc)
3936 return rc;
1da177e4
LT		 3937#ifdef CONFIG_QETH_VLAN
3938 if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3939 ((ipv == 6) || card->options.layer2) ) {
3940 /*
3941 * Move the mac addresses (6 bytes src, 6 bytes dest)
3942 * to the beginning of the new header. We are using three
3943 * memcpys instead of one memmove to save cycles.
3944 */
3945 skb_push(*skb, VLAN_HLEN);
3946 memcpy((*skb)->data, (*skb)->data + 4, 4);
3947 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3948 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3949 tag = (u16 *)((*skb)->data + 12);
3950 /*
3951 * first two bytes = ETH_P_8021Q (0x8100)
3952 * second two bytes = VLANID
3953 */
3954 *tag = __constant_htons(ETH_P_8021Q);
3955 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3956 }
3957#endif
3958 *hdr = (struct qeth_hdr *)
3959 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
ba1aa084 3960 if (*hdr == NULL)
1da177e4
LT		 3961 return -EINVAL;
3962 return 0;
3963}
3964
3965static inline u8
3966qeth_get_qeth_hdr_flags4(int cast_type)
3967{
3968 if (cast_type == RTN_MULTICAST)
3969 return QETH_CAST_MULTICAST;
3970 if (cast_type == RTN_BROADCAST)
3971 return QETH_CAST_BROADCAST;
3972 return QETH_CAST_UNICAST;
3973}
3974
3975static inline u8
3976qeth_get_qeth_hdr_flags6(int cast_type)
3977{
3978 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3979 if (cast_type == RTN_MULTICAST)
3980 return ct | QETH_CAST_MULTICAST;
3981 if (cast_type == RTN_ANYCAST)
3982 return ct | QETH_CAST_ANYCAST;
3983 if (cast_type == RTN_BROADCAST)
3984 return ct | QETH_CAST_BROADCAST;
3985 return ct | QETH_CAST_UNICAST;
3986}
3987
3988static inline void
3989qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3990 struct sk_buff *skb)
3991{
3992 __u16 hdr_mac;
3993
3994 if (!memcmp(skb->data+QETH_HEADER_SIZE,
3995 skb->dev->broadcast,6)) { /* broadcast? */
3996 *(__u32 *)hdr->hdr.l2.flags |=
3997 QETH_LAYER2_FLAG_BROADCAST << 8;
3998 return;
3999 }
4000 hdr_mac=*((__u16*)skb->data);
4001 /* tr multicast? */
4002 switch (card->info.link_type) {
4003 case QETH_LINK_TYPE_HSTR:
4004 case QETH_LINK_TYPE_LANE_TR:
4005 if ((hdr_mac == QETH_TR_MAC_NC) ||
4006 (hdr_mac == QETH_TR_MAC_C) )
4007 *(__u32 *)hdr->hdr.l2.flags |=
4008 QETH_LAYER2_FLAG_MULTICAST << 8;
4009 else
4010 *(__u32 *)hdr->hdr.l2.flags |=
4011 QETH_LAYER2_FLAG_UNICAST << 8;
4012 break;
4013 /* eth or so multicast? */
4014 default:
4015 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4016 (hdr_mac==QETH_ETH_MAC_V6) )
4017 *(__u32 *)hdr->hdr.l2.flags |=
4018 QETH_LAYER2_FLAG_MULTICAST << 8;
4019 else
4020 *(__u32 *)hdr->hdr.l2.flags |=
4021 QETH_LAYER2_FLAG_UNICAST << 8;
4022 }
4023}
4024
4025static inline void
4026qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4027 struct sk_buff *skb, int cast_type)
4028{
4029 memset(hdr, 0, sizeof(struct qeth_hdr));
4030 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4031
4032 /* set byte 0 to "0x02" and byte 3 to casting flags */
4033 if (cast_type==RTN_MULTICAST)
4034 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4035 else if (cast_type==RTN_BROADCAST)
4036 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4037 else
4038 qeth_layer2_get_packet_type(card, hdr, skb);
4039
4040 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4041#ifdef CONFIG_QETH_VLAN
4042 /* VSWITCH relies on the VLAN
4043 * information to be present in
4044 * the QDIO header */
4045 if ((card->vlangrp != NULL) &&
4046 vlan_tx_tag_present(skb)) {
4047 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4048 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4049 }
4050#endif
4051}
4052
4053void
4054qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4055 struct sk_buff *skb, int ipv, int cast_type)
4056{
4057 QETH_DBF_TEXT(trace, 6, "fillhdr");
4058
4059 memset(hdr, 0, sizeof(struct qeth_hdr));
4060 if (card->options.layer2) {
4061 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4062 return;
4063 }
4064 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4065 hdr->hdr.l3.ext_flags = 0;
4066#ifdef CONFIG_QETH_VLAN
4067 /*
4068 * before we're going to overwrite this location with next hop ip.
4069 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4070 */
4071 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4072 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4073 QETH_HDR_EXT_VLAN_FRAME :
4074 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4075 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4076 }
4077#endif /* CONFIG_QETH_VLAN */
4078 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4079 if (ipv == 4) { /* IPv4 */
4080 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4081 memset(hdr->hdr.l3.dest_addr, 0, 12);
4082 if ((skb->dst) && (skb->dst->neighbour)) {
4083 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4084 *((u32 *) skb->dst->neighbour->primary_key);
4085 } else {
4086 /* fill in destination address used in ip header */
4087 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4088 }
4089 } else if (ipv == 6) { /* IPv6 or passthru */
4090 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4091 if ((skb->dst) && (skb->dst->neighbour)) {
4092 memcpy(hdr->hdr.l3.dest_addr,
4093 skb->dst->neighbour->primary_key, 16);
4094 } else {
4095 /* fill in destination address used in ip header */
4096 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4097 }
4098 } else { /* passthrough */
e23dd9cd 4099 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
e82b0f2c 4100 !memcmp(skb->data + sizeof(struct qeth_hdr) +
9a455819
FP		 4101 sizeof(__u16), skb->dev->broadcast, 6)) {
4102 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4103 QETH_HDR_PASSTHRU;
e23dd9cd 4104 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
1da177e4 4105 skb->dev->broadcast, 6)) { /* broadcast? */
e23dd9cd
FP		 4106 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4107 QETH_HDR_PASSTHRU;
1da177e4
LT		 4108 } else {
4109 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4110 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4111 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4112 }
4113 }
4114}
4115
1da177e4
LT		 4116static inline void
4117__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
05e08a2a 4118 int is_tso, int *next_element_to_fill)
1da177e4
LT		 4119{
4120 int length = skb->len;
4121 int length_here;
4122 int element;
4123 char *data;
05e08a2a 4124 int first_lap ;
1da177e4
LT		 4125
4126 element = *next_element_to_fill;
4127 data = skb->data;
05e08a2a
FP		 4128 first_lap = (is_tso == 0 ? 1 : 0);
4129
1da177e4
LT		 4130 while (length > 0) {
4131 /* length_here is the remaining amount of data in this page */
4132 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4133 if (length < length_here)
4134 length_here = length;
05e08a2a 4135
1da177e4
LT		 4136 buffer->element[element].addr = data;
4137 buffer->element[element].length = length_here;
4138 length -= length_here;
05e08a2a 4139 if (!length) {
1da177e4
LT		 4140 if (first_lap)
4141 buffer->element[element].flags = 0;
4142 else
4143 buffer->element[element].flags =
4144 SBAL_FLAGS_LAST_FRAG;
4145 } else {
4146 if (first_lap)
4147 buffer->element[element].flags =
4148 SBAL_FLAGS_FIRST_FRAG;
4149 else
4150 buffer->element[element].flags =
4151 SBAL_FLAGS_MIDDLE_FRAG;
4152 }
4153 data += length_here;
4154 element++;
4155 first_lap = 0;
4156 }
4157 *next_element_to_fill = element;
4158}
4159
4160static inline int
4161qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4162 struct qeth_qdio_out_buffer *buf,
4163 struct sk_buff *skb)
4164{
4165 struct qdio_buffer *buffer;
05e08a2a
FP		 4166 struct qeth_hdr_tso *hdr;
4167 int flush_cnt = 0, hdr_len, large_send = 0;
1da177e4
LT		 4168
4169 QETH_DBF_TEXT(trace, 6, "qdfillbf");
05e08a2a 4170
1da177e4
LT		 4171 buffer = buf->buffer;
4172 atomic_inc(&skb->users);
4173 skb_queue_tail(&buf->skb_list, skb);
05e08a2a
FP		 4174
4175 hdr = (struct qeth_hdr_tso *) skb->data;
4176 /*check first on TSO ....*/
4177 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4178 int element = buf->next_element_to_fill;
4179
4180 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4181 /*fill first buffer entry only with header information */
4182 buffer->element[element].addr = skb->data;
4183 buffer->element[element].length = hdr_len;
4184 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4185 buf->next_element_to_fill++;
4186 skb->data += hdr_len;
4187 skb->len -= hdr_len;
4188 large_send = 1;
4189 }
1da177e4 4190 if (skb_shinfo(skb)->nr_frags == 0)
05e08a2a 4191 __qeth_fill_buffer(skb, buffer, large_send,
1da177e4
LT		 4192 (int *)&buf->next_element_to_fill);
4193 else
05e08a2a 4194 __qeth_fill_buffer_frag(skb, buffer, large_send,
1da177e4
LT		 4195 (int *)&buf->next_element_to_fill);
4196
4197 if (!queue->do_pack) {
4198 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4199 /* set state to PRIMED -> will be flushed */
4200 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4201 flush_cnt = 1;
4202 } else {
4203 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4204#ifdef CONFIG_QETH_PERF_STATS
4205 queue->card->perf_stats.skbs_sent_pack++;
4206#endif
4207 if (buf->next_element_to_fill >=
4208 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4209 /*
4210 * packed buffer if full -> set state PRIMED
4211 * -> will be flushed
4212 */
4213 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4214 flush_cnt = 1;
4215 }
4216 }
4217 return flush_cnt;
4218}
4219
4220static inline int
4221qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4222 struct sk_buff *skb, struct qeth_hdr *hdr,
4223 int elements_needed,
4224 struct qeth_eddp_context *ctx)
4225{
4226 struct qeth_qdio_out_buffer *buffer;
4227 int buffers_needed = 0;
4228 int flush_cnt = 0;
4229 int index;
4230
4231 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4232
4233 /* spin until we get the queue ... */
973bd993
MS		 4234 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4235 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4236 /* ... now we've got the queue */
4237 index = queue->next_buf_to_fill;
4238 buffer = &queue->bufs[queue->next_buf_to_fill];
4239 /*
4240 * check if buffer is empty to make sure that we do not 'overtake'
4241 * ourselves and try to fill a buffer that is already primed
4242 */
4243 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4244 card->stats.tx_dropped++;
4245 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4246 return -EBUSY;
4247 }
4248 if (ctx == NULL)
4249 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4250 QDIO_MAX_BUFFERS_PER_Q;
4251 else {
4252 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4253 if (buffers_needed < 0) {
4254 card->stats.tx_dropped++;
4255 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4256 return -EBUSY;
4257 }
4258 queue->next_buf_to_fill =
4259 (queue->next_buf_to_fill + buffers_needed) %
4260 QDIO_MAX_BUFFERS_PER_Q;
4261 }
4262 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4263 if (ctx == NULL) {
4264 qeth_fill_buffer(queue, buffer, skb);
4265 qeth_flush_buffers(queue, 0, index, 1);
4266 } else {
4267 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4268 WARN_ON(buffers_needed != flush_cnt);
4269 qeth_flush_buffers(queue, 0, index, flush_cnt);
4270 }
4271 return 0;
4272}
4273
4274static inline int
4275qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4276 struct sk_buff *skb, struct qeth_hdr *hdr,
4277 int elements_needed, struct qeth_eddp_context *ctx)
4278{
4279 struct qeth_qdio_out_buffer *buffer;
4280 int start_index;
4281 int flush_count = 0;
4282 int do_pack = 0;
4283 int tmp;
4284 int rc = 0;
4285
4286 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4287
4288 /* spin until we get the queue ... */
973bd993
MS		 4289 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4290 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4291 start_index = queue->next_buf_to_fill;
4292 buffer = &queue->bufs[queue->next_buf_to_fill];
4293 /*
4294 * check if buffer is empty to make sure that we do not 'overtake'
4295 * ourselves and try to fill a buffer that is already primed
4296 */
4297 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4298 card->stats.tx_dropped++;
4299 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4300 return -EBUSY;
4301 }
4302 /* check if we need to switch packing state of this queue */
4303 qeth_switch_to_packing_if_needed(queue);
4304 if (queue->do_pack){
4305 do_pack = 1;
4306 if (ctx == NULL) {
4307 /* does packet fit in current buffer? */
4308 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4309 buffer->next_element_to_fill) < elements_needed){
4310 /* ... no -> set state PRIMED */
4311 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4312 flush_count++;
4313 queue->next_buf_to_fill =
4314 (queue->next_buf_to_fill + 1) %
4315 QDIO_MAX_BUFFERS_PER_Q;
4316 buffer = &queue->bufs[queue->next_buf_to_fill];
4317 /* we did a step forward, so check buffer state
4318 * again */
4319 if (atomic_read(&buffer->state) !=
4320 QETH_QDIO_BUF_EMPTY){
4321 card->stats.tx_dropped++;
4322 qeth_flush_buffers(queue, 0, start_index, flush_count);
4323 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4324 return -EBUSY;
4325 }
4326 }
4327 } else {
4328 /* check if we have enough elements (including following
4329 * free buffers) to handle eddp context */
4330 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4331 printk("eddp tx_dropped 1\n");
4332 card->stats.tx_dropped++;
4333 rc = -EBUSY;
4334 goto out;
4335 }
4336 }
4337 }
4338 if (ctx == NULL)
4339 tmp = qeth_fill_buffer(queue, buffer, skb);
4340 else {
4341 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4342 if (tmp < 0) {
4343 printk("eddp tx_dropped 2\n");
4344 card->stats.tx_dropped++;
4345 rc = - EBUSY;
4346 goto out;
4347 }
4348 }
4349 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4350 QDIO_MAX_BUFFERS_PER_Q;
4351 flush_count += tmp;
4352out:
4353 if (flush_count)
4354 qeth_flush_buffers(queue, 0, start_index, flush_count);
d805d7c6
FP		 4355 else if (!atomic_read(&queue->set_pci_flags_count))
4356 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
1da177e4
LT		 4357 /*
4358 * queue->state will go from LOCKED -> UNLOCKED or from
4359 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4360 * (switch packing state or flush buffer to get another pci flag out).
4361 * In that case we will enter this loop
4362 */
4363 while (atomic_dec_return(&queue->state)){
4364 flush_count = 0;
4365 start_index = queue->next_buf_to_fill;
4366 /* check if we can go back to non-packing state */
4367 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4368 /*
4369 * check if we need to flush a packing buffer to get a pci
4370 * flag out on the queue
4371 */
4372 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4373 flush_count += qeth_flush_buffers_on_no_pci(queue);
4374 if (flush_count)
4375 qeth_flush_buffers(queue, 0, start_index, flush_count);
4376 }
4377 /* at this point the queue is UNLOCKED again */
4378#ifdef CONFIG_QETH_PERF_STATS
4379 if (do_pack)
4380 queue->card->perf_stats.bufs_sent_pack += flush_count;
4381#endif /* CONFIG_QETH_PERF_STATS */
4382
4383 return rc;
4384}
4385
05e08a2a 4386static inline int
e82b0f2c 4387qeth_get_elements_no(struct qeth_card *card, void *hdr,
9cb90de8 4388 struct sk_buff *skb, int elems)
05e08a2a
FP		 4389{
4390 int elements_needed = 0;
4391
4392 if (skb_shinfo(skb)->nr_frags > 0) {
4393 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4394 }
4395 if (elements_needed == 0 )
4396 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4397 + skb->len) >> PAGE_SHIFT);
9cb90de8 4398 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
05e08a2a 4399 PRINT_ERR("qeth_do_send_packet: invalid size of "
9cb90de8
FP		 4400 "IP packet (Number=%d / Length=%d). Discarded.\n",
4401 (elements_needed+elems), skb->len);
05e08a2a
FP		 4402 return 0;
4403 }
4404 return elements_needed;
4405}
4406
1da177e4
LT		 4407static inline int
4408qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4409{
4410 int ipv = 0;
4411 int cast_type;
4412 struct qeth_qdio_out_q *queue;
f3d242e8 4413 struct qeth_hdr *hdr = NULL;
1da177e4
LT		 4414 int elements_needed = 0;
4415 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4416 struct qeth_eddp_context *ctx = NULL;
95f6b5a1 4417 int tx_bytes = skb->len;
ba1aa084 4418 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
7967168c 4419 unsigned short tso_size = skb_shinfo(skb)->gso_size;
1da177e4
LT		 4420 int rc;
4421
4422 QETH_DBF_TEXT(trace, 6, "sendpkt");
4423
4424 if (!card->options.layer2) {
4425 ipv = qeth_get_ip_version(skb);
4426 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4427 if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4428 card->stats.tx_dropped++;
4429 dev_kfree_skb_irq(skb);
4430 return 0;
4431 }
e23dd9cd
FP		 4432 if(card->dev->type == ARPHRD_IEEE802_TR){
4433 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4434 } else {
4435 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4436 }
1da177e4
LT		 4437 }
4438 }
500f83ab
UB		 4439 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4440 (skb->protocol == htons(ETH_P_IPV6))) {
4441 dev_kfree_skb_any(skb);
4442 return 0;
4443 }
1da177e4 4444 cast_type = qeth_get_cast_type(card, skb);
e82b0f2c 4445 if ((cast_type == RTN_BROADCAST) &&
500f83ab 4446 (card->info.broadcast_capable == 0)){
1da177e4
LT		 4447 card->stats.tx_dropped++;
4448 card->stats.tx_errors++;
4449 dev_kfree_skb_any(skb);
4450 return NETDEV_TX_OK;
4451 }
4452 queue = card->qdio.out_qs
4453 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4454
7967168c 4455 if (skb_shinfo(skb)->gso_size)
1da177e4
LT		 4456 large_send = card->options.large_send;
4457
1da177e4
LT		 4458 /*are we able to do TSO ? If so ,prepare and send it from here */
4459 if ((large_send == QETH_LARGE_SEND_TSO) &&
4460 (cast_type == RTN_UNSPEC)) {
05e08a2a
FP		 4461 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4462 if (rc) {
4463 card->stats.tx_dropped++;
4464 card->stats.tx_errors++;
4465 dev_kfree_skb_any(skb);
4466 return NETDEV_TX_OK;
e82b0f2c 4467 }
05e08a2a
FP		 4468 elements_needed++;
4469 } else {
4470 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4471 QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4472 return rc;
4473 }
500f83ab
UB		 4474 if (card->info.type != QETH_CARD_TYPE_OSN)
4475 qeth_fill_header(card, hdr, skb, ipv, cast_type);
1da177e4
LT		 4476 }
4477
1da177e4
LT		 4478 if (large_send == QETH_LARGE_SEND_EDDP) {
4479 ctx = qeth_eddp_create_context(card, skb, hdr);
4480 if (ctx == NULL) {
4481 PRINT_WARN("could not create eddp context\n");
4482 return -EINVAL;
4483 }
4484 } else {
9cb90de8
FP		 4485 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4486 elements_needed);
4487 if (!elems)
1da177e4 4488 return -EINVAL;
9cb90de8 4489 elements_needed += elems;
1da177e4
LT		 4490 }
4491
4492 if (card->info.type != QETH_CARD_TYPE_IQD)
4493 rc = qeth_do_send_packet(card, queue, skb, hdr,
4494 elements_needed, ctx);
4495 else
4496 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4497 elements_needed, ctx);
1da177e4
LT		 4498 if (!rc){
4499 card->stats.tx_packets++;
95f6b5a1 4500 card->stats.tx_bytes += tx_bytes;
1da177e4 4501#ifdef CONFIG_QETH_PERF_STATS
ba1aa084 4502 if (tso_size &&
05e08a2a 4503 !(large_send == QETH_LARGE_SEND_NO)) {
ba1aa084 4504 card->perf_stats.large_send_bytes += tx_bytes;
1da177e4
LT		 4505 card->perf_stats.large_send_cnt++;
4506 }
ba1aa084 4507 if (nr_frags > 0){
1da177e4
LT		 4508 card->perf_stats.sg_skbs_sent++;
4509 /* nr_frags + skb->data */
4510 card->perf_stats.sg_frags_sent +=
ba1aa084 4511 nr_frags + 1;
1da177e4
LT		 4512 }
4513#endif /* CONFIG_QETH_PERF_STATS */
4514 }
4515 if (ctx != NULL) {
4516 /* drop creator's reference */
4517 qeth_eddp_put_context(ctx);
4518 /* free skb; it's not referenced by a buffer */
4519 if (rc == 0)
4520 dev_kfree_skb_any(skb);
4521
4522 }
4523 return rc;
4524}
4525
4526static int
4527qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4528{
4529 struct qeth_card *card = (struct qeth_card *) dev->priv;
4530 int rc = 0;
4531
4532 switch(regnum){
4533 case MII_BMCR: /* Basic mode control register */
4534 rc = BMCR_FULLDPLX;
4535 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
500f83ab 4536 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
1da177e4
LT		 4537 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4538 rc |= BMCR_SPEED100;
4539 break;
4540 case MII_BMSR: /* Basic mode status register */
4541 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4542 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4543 BMSR_100BASE4;
4544 break;
4545 case MII_PHYSID1: /* PHYS ID 1 */
4546 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4547 dev->dev_addr[2];
4548 rc = (rc >> 5) & 0xFFFF;
4549 break;
4550 case MII_PHYSID2: /* PHYS ID 2 */
4551 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4552 break;
4553 case MII_ADVERTISE: /* Advertisement control reg */
4554 rc = ADVERTISE_ALL;
4555 break;
4556 case MII_LPA: /* Link partner ability reg */
4557 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4558 LPA_100BASE4 | LPA_LPACK;
4559 break;
4560 case MII_EXPANSION: /* Expansion register */
4561 break;
4562 case MII_DCOUNTER: /* disconnect counter */
4563 break;
4564 case MII_FCSCOUNTER: /* false carrier counter */
4565 break;
4566 case MII_NWAYTEST: /* N-way auto-neg test register */
4567 break;
4568 case MII_RERRCOUNTER: /* rx error counter */
4569 rc = card->stats.rx_errors;
4570 break;
4571 case MII_SREVISION: /* silicon revision */
4572 break;
4573 case MII_RESV1: /* reserved 1 */
4574 break;
4575 case MII_LBRERROR: /* loopback, rx, bypass error */
4576 break;
4577 case MII_PHYADDR: /* physical address */
4578 break;
4579 case MII_RESV2: /* reserved 2 */
4580 break;
4581 case MII_TPISTATUS: /* TPI status for 10mbps */
4582 break;
4583 case MII_NCONFIG: /* network interface config */
4584 break;
4585 default:
1da177e4
LT		 4586 break;
4587 }
4588 return rc;
4589}
4590
1da177e4
LT		 4591
4592static inline const char *
4593qeth_arp_get_error_cause(int *rc)
4594{
4595 switch (*rc) {
4596 case QETH_IPA_ARP_RC_FAILED:
4597 *rc = -EIO;
4598 return "operation failed";
4599 case QETH_IPA_ARP_RC_NOTSUPP:
4600 *rc = -EOPNOTSUPP;
4601 return "operation not supported";
4602 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4603 *rc = -EINVAL;
4604 return "argument out of range";
4605 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4606 *rc = -EOPNOTSUPP;
4607 return "query operation not supported";
4608 case QETH_IPA_ARP_RC_Q_NO_DATA:
4609 *rc = -ENOENT;
4610 return "no query data available";
4611 default:
4612 return "unknown error";
4613 }
4614}
4615
4616static int
4617qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4618 __u16, long);
4619
4620static int
4621qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4622{
4623 int tmp;
4624 int rc;
4625
4626 QETH_DBF_TEXT(trace,3,"arpstnoe");
4627
f3d242e8
FP		 4628 /*
4629 * currently GuestLAN only supports the ARP assist function
4630 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4631 * thus we say EOPNOTSUPP for this ARP function
4632 */
1da177e4
LT		 4633 if (card->info.guestlan)
4634 return -EOPNOTSUPP;
4635 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4636 PRINT_WARN("ARP processing not supported "
4637 "on %s!\n", QETH_CARD_IFNAME(card));
4638 return -EOPNOTSUPP;
4639 }
4640 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4641 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4642 no_entries);
4643 if (rc) {
4644 tmp = rc;
4645 PRINT_WARN("Could not set number of ARP entries on %s: "
4646 "%s (0x%x/%d)\n",
4647 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4648 tmp, tmp);
4649 }
4650 return rc;
4651}
4652
4653static inline void
4654qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4655 struct qeth_arp_query_data *qdata,
4656 int entry_size, int uentry_size)
4657{
4658 char *entry_ptr;
4659 char *uentry_ptr;
4660 int i;
4661
4662 entry_ptr = (char *)&qdata->data;
4663 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4664 for (i = 0; i < qdata->no_entries; ++i){
4665 /* strip off 32 bytes "media specific information" */
4666 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4667 entry_ptr += entry_size;
4668 uentry_ptr += uentry_size;
4669 }
4670}
4671
4672static int
4673qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4674 unsigned long data)
4675{
4676 struct qeth_ipa_cmd *cmd;
4677 struct qeth_arp_query_data *qdata;
4678 struct qeth_arp_query_info *qinfo;
4679 int entry_size;
4680 int uentry_size;
4681 int i;
4682
4683 QETH_DBF_TEXT(trace,4,"arpquecb");
4684
4685 qinfo = (struct qeth_arp_query_info *) reply->param;
4686 cmd = (struct qeth_ipa_cmd *) data;
4687 if (cmd->hdr.return_code) {
4688 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4689 return 0;
4690 }
4691 if (cmd->data.setassparms.hdr.return_code) {
4692 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4693 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4694 return 0;
4695 }
4696 qdata = &cmd->data.setassparms.data.query_arp;
4697 switch(qdata->reply_bits){
4698 case 5:
4699 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4700 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4701 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4702 break;
4703 case 7:
4704 /* fall through to default */
4705 default:
4706 /* tr is the same as eth -> entry7 */
4707 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4708 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4709 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4710 break;
4711 }
4712 /* check if there is enough room in userspace */
4713 if ((qinfo->udata_len - qinfo->udata_offset) <
4714 qdata->no_entries * uentry_size){
4715 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4716 cmd->hdr.return_code = -ENOMEM;
4717 PRINT_WARN("query ARP user space buffer is too small for "
4718 "the returned number of ARP entries. "
4719 "Aborting query!\n");
4720 goto out_error;
4721 }
4722 QETH_DBF_TEXT_(trace, 4, "anore%i",
4723 cmd->data.setassparms.hdr.number_of_replies);
4724 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4725 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4726
4727 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4728 /* strip off "media specific information" */
4729 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4730 uentry_size);
4731 } else
4732 /*copy entries to user buffer*/
4733 memcpy(qinfo->udata + qinfo->udata_offset,
4734 (char *)&qdata->data, qdata->no_entries*uentry_size);
4735
4736 qinfo->no_entries += qdata->no_entries;
4737 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4738 /* check if all replies received ... */
4739 if (cmd->data.setassparms.hdr.seq_no <
4740 cmd->data.setassparms.hdr.number_of_replies)
4741 return 1;
4742 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4743 /* keep STRIP_ENTRIES flag so the user program can distinguish
4744 * stripped entries from normal ones */
4745 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4746 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4747 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4748 return 0;
4749out_error:
4750 i = 0;
4751 memcpy(qinfo->udata, &i, 4);
4752 return 0;
4753}
4754
4755static int
4756qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4757 int len, int (*reply_cb)(struct qeth_card *,
4758 struct qeth_reply *,
4759 unsigned long),
4760 void *reply_param)
4761{
4762 QETH_DBF_TEXT(trace,4,"sendarp");
4763
4764 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4765 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4766 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4767 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4768 reply_cb, reply_param);
4769}
4770
4771static int
4772qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4773 int len, int (*reply_cb)(struct qeth_card *,
4774 struct qeth_reply *,
4775 unsigned long),
4776 void *reply_param)
4777{
4778 u16 s1, s2;
4779
4780 QETH_DBF_TEXT(trace,4,"sendsnmp");
4781
4782 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4783 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4784 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4785 /* adjust PDU length fields in IPA_PDU_HEADER */
4786 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4787 s2 = (u32) len;
4788 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4789 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4790 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4791 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4792 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4793 reply_cb, reply_param);
4794}
4795
4796static struct qeth_cmd_buffer *
4797qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4798 __u16, __u16, enum qeth_prot_versions);
4799static int
4800qeth_arp_query(struct qeth_card *card, char *udata)
4801{
4802 struct qeth_cmd_buffer *iob;
4803 struct qeth_arp_query_info qinfo = {0, };
4804 int tmp;
4805 int rc;
4806
4807 QETH_DBF_TEXT(trace,3,"arpquery");
4808
1da177e4
LT		 4809 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4810 IPA_ARP_PROCESSING)) {
4811 PRINT_WARN("ARP processing not supported "
4812 "on %s!\n", QETH_CARD_IFNAME(card));
4813 return -EOPNOTSUPP;
4814 }
4815 /* get size of userspace buffer and mask_bits -> 6 bytes */
4816 if (copy_from_user(&qinfo, udata, 6))
4817 return -EFAULT;
88abaab4 4818 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
1da177e4 4819 return -ENOMEM;
1da177e4
LT		 4820 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4821 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4822 IPA_CMD_ASS_ARP_QUERY_INFO,
4823 sizeof(int),QETH_PROT_IPV4);
4824
4825 rc = qeth_send_ipa_arp_cmd(card, iob,
4826 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4827 qeth_arp_query_cb, (void *)&qinfo);
4828 if (rc) {
4829 tmp = rc;
4830 PRINT_WARN("Error while querying ARP cache on %s: %s "
4831 "(0x%x/%d)\n",
4832 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4833 tmp, tmp);
4834 copy_to_user(udata, qinfo.udata, 4);
4835 } else {
4836 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4837 }
4838 kfree(qinfo.udata);
4839 return rc;
4840}
4841
4842/**
4843 * SNMP command callback
4844 */
4845static int
4846qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4847 unsigned long sdata)
4848{
4849 struct qeth_ipa_cmd *cmd;
4850 struct qeth_arp_query_info *qinfo;
4851 struct qeth_snmp_cmd *snmp;
4852 unsigned char *data;
4853 __u16 data_len;
4854
4855 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4856
4857 cmd = (struct qeth_ipa_cmd *) sdata;
4858 data = (unsigned char *)((char *)cmd - reply->offset);
4859 qinfo = (struct qeth_arp_query_info *) reply->param;
4860 snmp = &cmd->data.setadapterparms.data.snmp;
4861
4862 if (cmd->hdr.return_code) {
4863 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4864 return 0;
4865 }
4866 if (cmd->data.setadapterparms.hdr.return_code) {
4867 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4868 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4869 return 0;
4870 }
4871 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4872 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4873 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4874 else
4875 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4876
4877 /* check if there is enough room in userspace */
4878 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4879 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4880 cmd->hdr.return_code = -ENOMEM;
4881 return 0;
4882 }
4883 QETH_DBF_TEXT_(trace, 4, "snore%i",
4884 cmd->data.setadapterparms.hdr.used_total);
4885 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4886 /*copy entries to user buffer*/
4887 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4888 memcpy(qinfo->udata + qinfo->udata_offset,
4889 (char *)snmp,
4890 data_len + offsetof(struct qeth_snmp_cmd,data));
4891 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4892 } else {
4893 memcpy(qinfo->udata + qinfo->udata_offset,
4894 (char *)&snmp->request, data_len);
4895 }
4896 qinfo->udata_offset += data_len;
4897 /* check if all replies received ... */
4898 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4899 cmd->data.setadapterparms.hdr.used_total);
4900 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4901 cmd->data.setadapterparms.hdr.seq_no);
4902 if (cmd->data.setadapterparms.hdr.seq_no <
4903 cmd->data.setadapterparms.hdr.used_total)
4904 return 1;
4905 return 0;
4906}
4907
4908static struct qeth_cmd_buffer *
4909qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4910 enum qeth_prot_versions );
4911
4912static struct qeth_cmd_buffer *
4913qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4914{
4915 struct qeth_cmd_buffer *iob;
4916 struct qeth_ipa_cmd *cmd;
4917
4918 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4919 QETH_PROT_IPV4);
4920 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4921 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4922 cmd->data.setadapterparms.hdr.command_code = command;
4923 cmd->data.setadapterparms.hdr.used_total = 1;
4924 cmd->data.setadapterparms.hdr.seq_no = 1;
4925
4926 return iob;
4927}
4928
4929/**
4930 * function to send SNMP commands to OSA-E card
4931 */
4932static int
4933qeth_snmp_command(struct qeth_card *card, char *udata)
4934{
4935 struct qeth_cmd_buffer *iob;
4936 struct qeth_ipa_cmd *cmd;
4937 struct qeth_snmp_ureq *ureq;
4938 int req_len;
4939 struct qeth_arp_query_info qinfo = {0, };
4940 int rc = 0;
4941
4942 QETH_DBF_TEXT(trace,3,"snmpcmd");
4943
4944 if (card->info.guestlan)
4945 return -EOPNOTSUPP;
4946
4947 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4948 (!card->options.layer2) ) {
4949 PRINT_WARN("SNMP Query MIBS not supported "
4950 "on %s!\n", QETH_CARD_IFNAME(card));
4951 return -EOPNOTSUPP;
4952 }
4953 /* skip 4 bytes (data_len struct member) to get req_len */
4954 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4955 return -EFAULT;
4956 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4957 if (!ureq) {
4958 QETH_DBF_TEXT(trace, 2, "snmpnome");
4959 return -ENOMEM;
4960 }
4961 if (copy_from_user(ureq, udata,
4962 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4963 kfree(ureq);
4964 return -EFAULT;
4965 }
4966 qinfo.udata_len = ureq->hdr.data_len;
88abaab4 4967 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
1da177e4
LT		 4968 kfree(ureq);
4969 return -ENOMEM;
4970 }
1da177e4
LT		 4971 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4972
4973 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4974 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4975 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4976 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4977 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4978 qeth_snmp_command_cb, (void *)&qinfo);
4979 if (rc)
4980 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4981 QETH_CARD_IFNAME(card), rc);
4982 else
4983 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4984
4985 kfree(ureq);
4986 kfree(qinfo.udata);
4987 return rc;
4988}
4989
4990static int
4991qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4992 unsigned long);
4993
4994static int
6c951b90
FP		 4995qeth_default_setadapterparms_cb(struct qeth_card *card,
4996 struct qeth_reply *reply,
4997 unsigned long data);
4998static int
1da177e4
LT		 4999qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5000 __u16, long,
5001 int (*reply_cb)
5002 (struct qeth_card *, struct qeth_reply *, unsigned long),
5003 void *reply_param);
5004
5005static int
5006qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5007{
5008 struct qeth_cmd_buffer *iob;
5009 char buf[16];
5010 int tmp;
5011 int rc;
5012
5013 QETH_DBF_TEXT(trace,3,"arpadent");
5014
5015 /*
f3d242e8
FP		 5016 * currently GuestLAN only supports the ARP assist function
5017 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5018 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5019 */
5020 if (card->info.guestlan)
5021 return -EOPNOTSUPP;
5022 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5023 PRINT_WARN("ARP processing not supported "
5024 "on %s!\n", QETH_CARD_IFNAME(card));
5025 return -EOPNOTSUPP;
5026 }
5027
5028 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5029 IPA_CMD_ASS_ARP_ADD_ENTRY,
5030 sizeof(struct qeth_arp_cache_entry),
5031 QETH_PROT_IPV4);
5032 rc = qeth_send_setassparms(card, iob,
5033 sizeof(struct qeth_arp_cache_entry),
5034 (unsigned long) entry,
5035 qeth_default_setassparms_cb, NULL);
5036 if (rc) {
5037 tmp = rc;
5038 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5039 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5040 "%s (0x%x/%d)\n",
5041 buf, QETH_CARD_IFNAME(card),
5042 qeth_arp_get_error_cause(&rc), tmp, tmp);
5043 }
5044 return rc;
5045}
5046
5047static int
5048qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5049{
5050 struct qeth_cmd_buffer *iob;
5051 char buf[16] = {0, };
5052 int tmp;
5053 int rc;
5054
5055 QETH_DBF_TEXT(trace,3,"arprment");
5056
5057 /*
f3d242e8
FP		 5058 * currently GuestLAN only supports the ARP assist function
5059 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5060 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5061 */
5062 if (card->info.guestlan)
5063 return -EOPNOTSUPP;
5064 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5065 PRINT_WARN("ARP processing not supported "
5066 "on %s!\n", QETH_CARD_IFNAME(card));
5067 return -EOPNOTSUPP;
5068 }
5069 memcpy(buf, entry, 12);
5070 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5071 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5072 12,
5073 QETH_PROT_IPV4);
5074 rc = qeth_send_setassparms(card, iob,
5075 12, (unsigned long)buf,
5076 qeth_default_setassparms_cb, NULL);
5077 if (rc) {
5078 tmp = rc;
5079 memset(buf, 0, 16);
5080 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5081 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5082 "%s (0x%x/%d)\n",
5083 buf, QETH_CARD_IFNAME(card),
5084 qeth_arp_get_error_cause(&rc), tmp, tmp);
5085 }
5086 return rc;
5087}
5088
5089static int
5090qeth_arp_flush_cache(struct qeth_card *card)
5091{
5092 int rc;
5093 int tmp;
5094
5095 QETH_DBF_TEXT(trace,3,"arpflush");
5096
5097 /*
f3d242e8
FP		 5098 * currently GuestLAN only supports the ARP assist function
5099 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5100 * thus we say EOPNOTSUPP for this ARP function
5101 */
1da177e4
LT		 5102 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5103 return -EOPNOTSUPP;
5104 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5105 PRINT_WARN("ARP processing not supported "
5106 "on %s!\n", QETH_CARD_IFNAME(card));
5107 return -EOPNOTSUPP;
5108 }
5109 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5110 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5111 if (rc){
5112 tmp = rc;
5113 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5114 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5115 tmp, tmp);
5116 }
5117 return rc;
5118}
5119
5120static int
5121qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5122{
5123 struct qeth_card *card = (struct qeth_card *)dev->priv;
5124 struct qeth_arp_cache_entry arp_entry;
5125 struct mii_ioctl_data *mii_data;
5126 int rc = 0;
5127
5128 if (!card)
5129 return -ENODEV;
5130
5131 if ((card->state != CARD_STATE_UP) &&
5132 (card->state != CARD_STATE_SOFTSETUP))
5133 return -ENODEV;
5134
500f83ab
UB		 5135 if (card->info.type == QETH_CARD_TYPE_OSN)
5136 return -EPERM;
5137
1da177e4
LT		 5138 switch (cmd){
5139 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5140 if ( !capable(CAP_NET_ADMIN) ||
5141 (card->options.layer2) ) {
5142 rc = -EPERM;
5143 break;
5144 }
5145 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5146 break;
5147 case SIOC_QETH_ARP_QUERY_INFO:
5148 if ( !capable(CAP_NET_ADMIN) ||
5149 (card->options.layer2) ) {
5150 rc = -EPERM;
5151 break;
5152 }
5153 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5154 break;
5155 case SIOC_QETH_ARP_ADD_ENTRY:
5156 if ( !capable(CAP_NET_ADMIN) ||
5157 (card->options.layer2) ) {
5158 rc = -EPERM;
5159 break;
5160 }
5161 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5162 sizeof(struct qeth_arp_cache_entry)))
5163 rc = -EFAULT;
5164 else
5165 rc = qeth_arp_add_entry(card, &arp_entry);
5166 break;
5167 case SIOC_QETH_ARP_REMOVE_ENTRY:
5168 if ( !capable(CAP_NET_ADMIN) ||
5169 (card->options.layer2) ) {
5170 rc = -EPERM;
5171 break;
5172 }
5173 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5174 sizeof(struct qeth_arp_cache_entry)))
5175 rc = -EFAULT;
5176 else
5177 rc = qeth_arp_remove_entry(card, &arp_entry);
5178 break;
5179 case SIOC_QETH_ARP_FLUSH_CACHE:
5180 if ( !capable(CAP_NET_ADMIN) ||
5181 (card->options.layer2) ) {
5182 rc = -EPERM;
5183 break;
5184 }
5185 rc = qeth_arp_flush_cache(card);
5186 break;
5187 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5188 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5189 break;
5190 case SIOC_QETH_GET_CARD_TYPE:
5191 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5192 !card->info.guestlan)
5193 return 1;
5194 return 0;
5195 break;
5196 case SIOCGMIIPHY:
5197 mii_data = if_mii(rq);
5198 mii_data->phy_id = 0;
5199 break;
5200 case SIOCGMIIREG:
5201 mii_data = if_mii(rq);
5202 if (mii_data->phy_id != 0)
5203 rc = -EINVAL;
5204 else
5205 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5206 mii_data->reg_num);
5207 break;
1da177e4
LT		 5208 default:
5209 rc = -EOPNOTSUPP;
5210 }
5211 if (rc)
5212 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5213 return rc;
5214}
5215
5216static struct net_device_stats *
5217qeth_get_stats(struct net_device *dev)
5218{
5219 struct qeth_card *card;
5220
5221 card = (struct qeth_card *) (dev->priv);
5222
5223 QETH_DBF_TEXT(trace,5,"getstat");
5224
5225 return &card->stats;
5226}
5227
5228static int
5229qeth_change_mtu(struct net_device *dev, int new_mtu)
5230{
5231 struct qeth_card *card;
5232 char dbf_text[15];
5233
5234 card = (struct qeth_card *) (dev->priv);
5235
5236 QETH_DBF_TEXT(trace,4,"chgmtu");
5237 sprintf(dbf_text, "%8x", new_mtu);
5238 QETH_DBF_TEXT(trace,4,dbf_text);
5239
5240 if (new_mtu < 64)
5241 return -EINVAL;
5242 if (new_mtu > 65535)
5243 return -EINVAL;
5244 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5245 (!qeth_mtu_is_valid(card, new_mtu)))
5246 return -EINVAL;
5247 dev->mtu = new_mtu;
5248 return 0;
5249}
5250
5251#ifdef CONFIG_QETH_VLAN
5252static void
5253qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5254{
5255 struct qeth_card *card;
5256 unsigned long flags;
5257
5258 QETH_DBF_TEXT(trace,4,"vlanreg");
5259
5260 card = (struct qeth_card *) dev->priv;
5261 spin_lock_irqsave(&card->vlanlock, flags);
5262 card->vlangrp = grp;
5263 spin_unlock_irqrestore(&card->vlanlock, flags);
5264}
5265
5266static inline void
5267qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5268 unsigned short vid)
5269{
5270 int i;
5271 struct sk_buff *skb;
5272 struct sk_buff_head tmp_list;
5273
5274 skb_queue_head_init(&tmp_list);
5275 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5276 while ((skb = skb_dequeue(&buf->skb_list))){
5277 if (vlan_tx_tag_present(skb) &&
5278 (vlan_tx_tag_get(skb) == vid)) {
5279 atomic_dec(&skb->users);
5280 dev_kfree_skb(skb);
5281 } else
5282 skb_queue_tail(&tmp_list, skb);
5283 }
5284 }
5285 while ((skb = skb_dequeue(&tmp_list)))
5286 skb_queue_tail(&buf->skb_list, skb);
5287}
5288
5289static void
5290qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5291{
5292 int i, j;
5293
5294 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5295 for (i = 0; i < card->qdio.no_out_queues; ++i){
5296 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5297 qeth_free_vlan_buffer(card, &card->qdio.
5298 out_qs[i]->bufs[j], vid);
5299 }
5300}
5301
5302static void
5303qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5304{
5305 struct in_device *in_dev;
5306 struct in_ifaddr *ifa;
5307 struct qeth_ipaddr *addr;
5308
5309 QETH_DBF_TEXT(trace, 4, "frvaddr4");
6c88ad2d 5310
1da177e4 5311 rcu_read_lock();
e5ed6399 5312 in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
1da177e4
LT		 5313 if (!in_dev)
5314 goto out;
5315 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5316 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5317 if (addr){
5318 addr->u.a4.addr = ifa->ifa_address;
5319 addr->u.a4.mask = ifa->ifa_mask;
5320 addr->type = QETH_IP_TYPE_NORMAL;
5321 if (!qeth_delete_ip(card, addr))
5322 kfree(addr);
5323 }
5324 }
5325out:
5326 rcu_read_unlock();
5327}
5328
5329static void
5330qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5331{
5332#ifdef CONFIG_QETH_IPV6
5333 struct inet6_dev *in6_dev;
5334 struct inet6_ifaddr *ifa;
5335 struct qeth_ipaddr *addr;
5336
5337 QETH_DBF_TEXT(trace, 4, "frvaddr6");
6c88ad2d 5338
1da177e4
LT		 5339 in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5340 if (!in6_dev)
5341 return;
5342 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5343 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5344 if (addr){
5345 memcpy(&addr->u.a6.addr, &ifa->addr,
5346 sizeof(struct in6_addr));
5347 addr->u.a6.pfxlen = ifa->prefix_len;
5348 addr->type = QETH_IP_TYPE_NORMAL;
5349 if (!qeth_delete_ip(card, addr))
5350 kfree(addr);
5351 }
5352 }
5353 in6_dev_put(in6_dev);
5354#endif /* CONFIG_QETH_IPV6 */
5355}
5356
6c88ad2d
FP		 5357static void
5358qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5359{
5360 if (card->options.layer2 || !card->vlangrp)
5361 return;
5362 qeth_free_vlan_addresses4(card, vid);
5363 qeth_free_vlan_addresses6(card, vid);
5364}
5365
508cc2b0
FP		 5366static int
5367qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5368 struct qeth_reply *reply,
5369 unsigned long data)
5370{
5371 struct qeth_ipa_cmd *cmd;
5372
5373 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5374 cmd = (struct qeth_ipa_cmd *) data;
5375 if (cmd->hdr.return_code) {
5376 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
e82b0f2c 5377 "Continuing\n",cmd->data.setdelvlan.vlan_id,
508cc2b0
FP		 5378 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5379 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5380 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5381 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5382 }
5383 return 0;
5384}
5385
5386static int
1da177e4
LT		 5387qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5388 enum qeth_ipa_cmds ipacmd)
5389{
1da177e4
LT		 5390 struct qeth_ipa_cmd *cmd;
5391 struct qeth_cmd_buffer *iob;
5392
5393 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5394 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5395 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5396 cmd->data.setdelvlan.vlan_id = i;
e82b0f2c 5397 return qeth_send_ipa_cmd(card, iob,
508cc2b0 5398 qeth_layer2_send_setdelvlan_cb, NULL);
1da177e4
LT		 5399}
5400
5401static void
5402qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5403{
5404 unsigned short i;
5405
5406 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5407
5408 if (!card->vlangrp)
5409 return;
5410 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5411 if (card->vlangrp->vlan_devices[i] == NULL)
5412 continue;
5413 if (clear)
5414 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5415 else
5416 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5417 }
5418}
5419
5420/*add_vid is layer 2 used only ....*/
5421static void
5422qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5423{
5424 struct qeth_card *card;
5425
5426 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5427
5428 card = (struct qeth_card *) dev->priv;
5429 if (!card->options.layer2)
5430 return;
5431 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5432}
5433
5434/*... kill_vid used for both modes*/
5435static void
5436qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5437{
5438 struct qeth_card *card;
5439 unsigned long flags;
5440
5441 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5442
5443 card = (struct qeth_card *) dev->priv;
5444 /* free all skbs for the vlan device */
5445 qeth_free_vlan_skbs(card, vid);
5446 spin_lock_irqsave(&card->vlanlock, flags);
5447 /* unregister IP addresses of vlan device */
6c88ad2d 5448 qeth_free_vlan_addresses(card, vid);
1da177e4
LT		 5449 if (card->vlangrp)
5450 card->vlangrp->vlan_devices[vid] = NULL;
5451 spin_unlock_irqrestore(&card->vlanlock, flags);
5452 if (card->options.layer2)
5453 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5454 qeth_set_multicast_list(card->dev);
5455}
5456#endif
6c951b90
FP		 5457/**
5458 * Examine hardware response to SET_PROMISC_MODE
5459 */
5460static int
e82b0f2c 5461qeth_setadp_promisc_mode_cb(struct qeth_card *card,
6c951b90
FP		 5462 struct qeth_reply *reply,
5463 unsigned long data)
5464{
5465 struct qeth_ipa_cmd *cmd;
5466 struct qeth_ipacmd_setadpparms *setparms;
5467
5468 QETH_DBF_TEXT(trace,4,"prmadpcb");
5469
5470 cmd = (struct qeth_ipa_cmd *) data;
5471 setparms = &(cmd->data.setadapterparms);
e82b0f2c 5472
6c951b90 5473 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
e82b0f2c
JG		 5474 if (cmd->hdr.return_code) {
5475 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
6c951b90
FP		 5476 setparms->data.mode = SET_PROMISC_MODE_OFF;
5477 }
5478 card->info.promisc_mode = setparms->data.mode;
5479 return 0;
5480}
5481/*
5482 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5483 */
5484static void
5485qeth_setadp_promisc_mode(struct qeth_card *card)
5486{
5487 enum qeth_ipa_promisc_modes mode;
5488 struct net_device *dev = card->dev;
5489 struct qeth_cmd_buffer *iob;
5490 struct qeth_ipa_cmd *cmd;
5491
5492 QETH_DBF_TEXT(trace, 4, "setprom");
5493
5494 if (((dev->flags & IFF_PROMISC) &&
5495 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5496 (!(dev->flags & IFF_PROMISC) &&
5497 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5498 return;
5499 mode = SET_PROMISC_MODE_OFF;
5500 if (dev->flags & IFF_PROMISC)
5501 mode = SET_PROMISC_MODE_ON;
5502 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5503
5504 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5505 sizeof(struct qeth_ipacmd_setadpparms));
5506 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5507 cmd->data.setadapterparms.data.mode = mode;
5508 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5509}
1da177e4
LT		 5510
5511/**
5512 * set multicast address on card
5513 */
5514static void
5515qeth_set_multicast_list(struct net_device *dev)
5516{
5517 struct qeth_card *card = (struct qeth_card *) dev->priv;
5518
500f83ab
UB		 5519 if (card->info.type == QETH_CARD_TYPE_OSN)
5520 return ;
e82b0f2c 5521
66cc5d5a 5522 QETH_DBF_TEXT(trace, 3, "setmulti");
1da177e4 5523 qeth_delete_mc_addresses(card);
6c88ad2d
FP		 5524 if (card->options.layer2) {
5525 qeth_layer2_add_multicast(card);
5526 goto out;
5527 }
1da177e4
LT		 5528 qeth_add_multicast_ipv4(card);
5529#ifdef CONFIG_QETH_IPV6
5530 qeth_add_multicast_ipv6(card);
5531#endif
6c88ad2d 5532out:
1da177e4
LT		 5533 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5534 schedule_work(&card->kernel_thread_starter);
6c951b90
FP		 5535 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5536 return;
5537 if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5538 schedule_work(&card->kernel_thread_starter);
1da177e4
LT		 5539}
5540
5541static int
5542qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5543{
5544 return 0;
5545}
5546
5547static void
5548qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5549{
5550 if (dev->type == ARPHRD_IEEE802_TR)
5551 ip_tr_mc_map(ipm, mac);
5552 else
5553 ip_eth_mc_map(ipm, mac);
5554}
5555
5556static struct qeth_ipaddr *
5557qeth_get_addr_buffer(enum qeth_prot_versions prot)
5558{
5559 struct qeth_ipaddr *addr;
5560
88abaab4 5561 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
1da177e4
LT		 5562 if (addr == NULL) {
5563 PRINT_WARN("Not enough memory to add address\n");
5564 return NULL;
5565 }
1da177e4
LT		 5566 addr->type = QETH_IP_TYPE_NORMAL;
5567 addr->proto = prot;
5568 return addr;
5569}
5570
500f83ab
UB		 5571int
5572qeth_osn_assist(struct net_device *dev,
5573 void *data,
5574 int data_len)
5575{
5576 struct qeth_cmd_buffer *iob;
5577 struct qeth_card *card;
5578 int rc;
e82b0f2c 5579
500f83ab
UB		 5580 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5581 if (!dev)
5582 return -ENODEV;
5583 card = (struct qeth_card *)dev->priv;
5584 if (!card)
5585 return -ENODEV;
5586 if ((card->state != CARD_STATE_UP) &&
5587 (card->state != CARD_STATE_SOFTSETUP))
5588 return -ENODEV;
5589 iob = qeth_wait_for_buffer(&card->write);
5590 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5591 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5592 return rc;
5593}
5594
5595static struct net_device *
5596qeth_netdev_by_devno(unsigned char *read_dev_no)
5597{
5598 struct qeth_card *card;
5599 struct net_device *ndev;
5600 unsigned char *readno;
5601 __u16 temp_dev_no, card_dev_no;
5602 char *endp;
5603 unsigned long flags;
5604
5605 ndev = NULL;
5606 memcpy(&temp_dev_no, read_dev_no, 2);
5607 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5608 list_for_each_entry(card, &qeth_card_list.list, list) {
5609 readno = CARD_RDEV_ID(card);
5610 readno += (strlen(readno) - 4);
5611 card_dev_no = simple_strtoul(readno, &endp, 16);
5612 if (card_dev_no == temp_dev_no) {
5613 ndev = card->dev;
5614 break;
5615 }
5616 }
5617 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5618 return ndev;
5619}
5620
5621int
5622qeth_osn_register(unsigned char *read_dev_no,
5623 struct net_device **dev,
5624 int (*assist_cb)(struct net_device *, void *),
5625 int (*data_cb)(struct sk_buff *))
5626{
5627 struct qeth_card * card;
5628
5629 QETH_DBF_TEXT(trace, 2, "osnreg");
5630 *dev = qeth_netdev_by_devno(read_dev_no);
5631 if (*dev == NULL)
5632 return -ENODEV;
5633 card = (struct qeth_card *)(*dev)->priv;
5634 if (!card)
5635 return -ENODEV;
5636 if ((assist_cb == NULL) || (data_cb == NULL))
5637 return -EINVAL;
5638 card->osn_info.assist_cb = assist_cb;
5639 card->osn_info.data_cb = data_cb;
5640 return 0;
5641}
5642
5643void
5644qeth_osn_deregister(struct net_device * dev)
5645{
5646 struct qeth_card *card;
5647
5648 QETH_DBF_TEXT(trace, 2, "osndereg");
5649 if (!dev)
5650 return;
5651 card = (struct qeth_card *)dev->priv;
5652 if (!card)
5653 return;
5654 card->osn_info.assist_cb = NULL;
5655 card->osn_info.data_cb = NULL;
5656 return;
5657}
e82b0f2c 5658
1da177e4
LT		 5659static void
5660qeth_delete_mc_addresses(struct qeth_card *card)
5661{
5662 struct qeth_ipaddr *iptodo;
5663 unsigned long flags;
5664
5665 QETH_DBF_TEXT(trace,4,"delmc");
5666 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5667 if (!iptodo) {
5668 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5669 return;
5670 }
5671 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5672 spin_lock_irqsave(&card->ip_lock, flags);
5673 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5674 kfree(iptodo);
5675 spin_unlock_irqrestore(&card->ip_lock, flags);
5676}
5677
5678static inline void
5679qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5680{
5681 struct qeth_ipaddr *ipm;
5682 struct ip_mc_list *im4;
5683 char buf[MAX_ADDR_LEN];
5684
5685 QETH_DBF_TEXT(trace,4,"addmc");
5686 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5687 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5688 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5689 if (!ipm)
5690 continue;
5691 ipm->u.a4.addr = im4->multiaddr;
5692 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5693 ipm->is_multicast = 1;
5694 if (!qeth_add_ip(card,ipm))
5695 kfree(ipm);
5696 }
5697}
5698
5699static inline void
5700qeth_add_vlan_mc(struct qeth_card *card)
5701{
5702#ifdef CONFIG_QETH_VLAN
5703 struct in_device *in_dev;
5704 struct vlan_group *vg;
5705 int i;
5706
5707 QETH_DBF_TEXT(trace,4,"addmcvl");
5708 if ( ((card->options.layer2 == 0) &&
5709 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5710 (card->vlangrp == NULL) )
5711 return ;
5712
5713 vg = card->vlangrp;
5714 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5715 if (vg->vlan_devices[i] == NULL ||
5716 !(vg->vlan_devices[i]->flags & IFF_UP))
5717 continue;
5718 in_dev = in_dev_get(vg->vlan_devices[i]);
5719 if (!in_dev)
5720 continue;
5721 read_lock(&in_dev->mc_list_lock);
5722 qeth_add_mc(card,in_dev);
5723 read_unlock(&in_dev->mc_list_lock);
5724 in_dev_put(in_dev);
5725 }
5726#endif
5727}
5728
5729static void
5730qeth_add_multicast_ipv4(struct qeth_card *card)
5731{
5732 struct in_device *in4_dev;
5733
5734 QETH_DBF_TEXT(trace,4,"chkmcv4");
5735 in4_dev = in_dev_get(card->dev);
5736 if (in4_dev == NULL)
5737 return;
5738 read_lock(&in4_dev->mc_list_lock);
5739 qeth_add_mc(card, in4_dev);
5740 qeth_add_vlan_mc(card);
5741 read_unlock(&in4_dev->mc_list_lock);
5742 in_dev_put(in4_dev);
5743}
5744
6c88ad2d
FP		 5745static void
5746qeth_layer2_add_multicast(struct qeth_card *card)
5747{
5748 struct qeth_ipaddr *ipm;
5749 struct dev_mc_list *dm;
5750
5751 QETH_DBF_TEXT(trace,4,"L2addmc");
5752 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5753 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5754 if (!ipm)
5755 continue;
5756 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5757 ipm->is_multicast = 1;
5758 if (!qeth_add_ip(card, ipm))
5759 kfree(ipm);
5760 }
5761}
5762
1da177e4
LT		 5763#ifdef CONFIG_QETH_IPV6
5764static inline void
5765qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5766{
5767 struct qeth_ipaddr *ipm;
5768 struct ifmcaddr6 *im6;
5769 char buf[MAX_ADDR_LEN];
5770
5771 QETH_DBF_TEXT(trace,4,"addmc6");
5772 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5773 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5774 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5775 if (!ipm)
5776 continue;
5777 ipm->is_multicast = 1;
5778 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5779 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5780 sizeof(struct in6_addr));
5781 if (!qeth_add_ip(card,ipm))
5782 kfree(ipm);
5783 }
5784}
5785
5786static inline void
5787qeth_add_vlan_mc6(struct qeth_card *card)
5788{
5789#ifdef CONFIG_QETH_VLAN
5790 struct inet6_dev *in_dev;
5791 struct vlan_group *vg;
5792 int i;
5793
5794 QETH_DBF_TEXT(trace,4,"admc6vl");
5795 if ( ((card->options.layer2 == 0) &&
5796 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5797 (card->vlangrp == NULL))
5798 return ;
5799
5800 vg = card->vlangrp;
5801 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5802 if (vg->vlan_devices[i] == NULL ||
5803 !(vg->vlan_devices[i]->flags & IFF_UP))
5804 continue;
5805 in_dev = in6_dev_get(vg->vlan_devices[i]);
5806 if (!in_dev)
5807 continue;
5808 read_lock(&in_dev->lock);
5809 qeth_add_mc6(card,in_dev);
5810 read_unlock(&in_dev->lock);
5811 in6_dev_put(in_dev);
5812 }
5813#endif /* CONFIG_QETH_VLAN */
5814}
5815
5816static void
5817qeth_add_multicast_ipv6(struct qeth_card *card)
5818{
5819 struct inet6_dev *in6_dev;
5820
5821 QETH_DBF_TEXT(trace,4,"chkmcv6");
e82b0f2c 5822 if (!qeth_is_supported(card, IPA_IPV6))
1da177e4 5823 return ;
1da177e4
LT		 5824 in6_dev = in6_dev_get(card->dev);
5825 if (in6_dev == NULL)
5826 return;
5827 read_lock(&in6_dev->lock);
5828 qeth_add_mc6(card, in6_dev);
5829 qeth_add_vlan_mc6(card);
5830 read_unlock(&in6_dev->lock);
5831 in6_dev_put(in6_dev);
5832}
5833#endif /* CONFIG_QETH_IPV6 */
5834
5835static int
5836qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5837 enum qeth_ipa_cmds ipacmd,
5838 int (*reply_cb) (struct qeth_card *,
5839 struct qeth_reply*,
5840 unsigned long))
5841{
5842 struct qeth_ipa_cmd *cmd;
5843 struct qeth_cmd_buffer *iob;
5844
5845 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5846 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5847 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5848 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5849 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5850 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5851}
5852
5853static int
5854qeth_layer2_send_setgroupmac_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, "L2Sgmacb");
5862 cmd = (struct qeth_ipa_cmd *) data;
5863 mac = &cmd->data.setdelmac.mac[0];
5864 /* MAC already registered, needed in couple/uncouple case */
5865 if (cmd->hdr.return_code == 0x2005) {
5866 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5867 "already existing on %s \n",
5868 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5869 QETH_CARD_IFNAME(card));
5870 cmd->hdr.return_code = 0;
5871 }
5872 if (cmd->hdr.return_code)
5873 PRINT_ERR("Could not set group MAC " \
5874 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5875 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5876 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5877 return 0;
5878}
5879
5880static int
5881qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5882{
5883 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5884 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5885 qeth_layer2_send_setgroupmac_cb);
5886}
5887
5888static int
5889qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5890 struct qeth_reply *reply,
5891 unsigned long data)
5892{
5893 struct qeth_ipa_cmd *cmd;
5894 __u8 *mac;
5895
5896 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5897 cmd = (struct qeth_ipa_cmd *) data;
5898 mac = &cmd->data.setdelmac.mac[0];
5899 if (cmd->hdr.return_code)
5900 PRINT_ERR("Could not delete group MAC " \
5901 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5902 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5903 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5904 return 0;
5905}
5906
5907static int
5908qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5909{
5910 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5911 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5912 qeth_layer2_send_delgroupmac_cb);
5913}
5914
5915static int
5916qeth_layer2_send_setmac_cb(struct qeth_card *card,
5917 struct qeth_reply *reply,
5918 unsigned long data)
5919{
5920 struct qeth_ipa_cmd *cmd;
5921
5922 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5923 cmd = (struct qeth_ipa_cmd *) data;
5924 if (cmd->hdr.return_code) {
5925 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5926 PRINT_WARN("Error in registering MAC address on " \
5927 "device %s: x%x\n", CARD_BUS_ID(card),
5928 cmd->hdr.return_code);
e08d88cc 5929 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5930 cmd->hdr.return_code = -EIO;
5931 } else {
e08d88cc 5932 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5933 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5934 OSA_ADDR_LEN);
5935 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5936 "successfully registered on device %s\n",
5937 card->dev->dev_addr[0], card->dev->dev_addr[1],
5938 card->dev->dev_addr[2], card->dev->dev_addr[3],
5939 card->dev->dev_addr[4], card->dev->dev_addr[5],
5940 card->dev->name);
5941 }
5942 return 0;
5943}
5944
5945static int
5946qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5947{
5948 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5949 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5950 qeth_layer2_send_setmac_cb);
5951}
5952
5953static int
5954qeth_layer2_send_delmac_cb(struct qeth_card *card,
5955 struct qeth_reply *reply,
5956 unsigned long data)
5957{
5958 struct qeth_ipa_cmd *cmd;
5959
5960 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5961 cmd = (struct qeth_ipa_cmd *) data;
5962 if (cmd->hdr.return_code) {
5963 PRINT_WARN("Error in deregistering MAC address on " \
5964 "device %s: x%x\n", CARD_BUS_ID(card),
5965 cmd->hdr.return_code);
5966 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5967 cmd->hdr.return_code = -EIO;
5968 return 0;
5969 }
e08d88cc 5970 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5971
5972 return 0;
5973}
5974static int
5975qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5976{
5977 QETH_DBF_TEXT(trace, 2, "L2Delmac");
e08d88cc 5978 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
1da177e4
LT		 5979 return 0;
5980 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5981 qeth_layer2_send_delmac_cb);
5982}
5983
5984static int
5985qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5986{
5987 struct sockaddr *addr = p;
5988 struct qeth_card *card;
5989 int rc = 0;
5990
5991 QETH_DBF_TEXT(trace, 3, "setmac");
5992
5993 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5994 QETH_DBF_TEXT(trace, 3, "setmcINV");
5995 return -EOPNOTSUPP;
5996 }
5997 card = (struct qeth_card *) dev->priv;
5998
5999 if (!card->options.layer2) {
e08d88cc 6000 PRINT_WARN("Setting MAC address on %s is not supported "
1da177e4
LT		 6001 "in Layer 3 mode.\n", dev->name);
6002 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6003 return -EOPNOTSUPP;
6004 }
500f83ab
UB		 6005 if (card->info.type == QETH_CARD_TYPE_OSN) {
6006 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6007 dev->name);
6008 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6009 return -EOPNOTSUPP;
6010 }
1da177e4
LT		 6011 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6012 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6013 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6014 if (!rc)
6015 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6016 return rc;
6017}
6018
6019static void
6020qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6021 __u8 command, enum qeth_prot_versions prot)
6022{
6023 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6024 cmd->hdr.command = command;
6025 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6026 cmd->hdr.seqno = card->seqno.ipa;
6027 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6028 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6029 if (card->options.layer2)
6030 cmd->hdr.prim_version_no = 2;
6031 else
6032 cmd->hdr.prim_version_no = 1;
6033 cmd->hdr.param_count = 1;
6034 cmd->hdr.prot_version = prot;
6035 cmd->hdr.ipa_supported = 0;
6036 cmd->hdr.ipa_enabled = 0;
6037}
6038
6039static struct qeth_cmd_buffer *
6040qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6041 enum qeth_prot_versions prot)
6042{
6043 struct qeth_cmd_buffer *iob;
6044 struct qeth_ipa_cmd *cmd;
6045
6046 iob = qeth_wait_for_buffer(&card->write);
6047 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6048 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6049
6050 return iob;
6051}
6052
6053static int
6054qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6055{
6056 int rc;
6057 struct qeth_cmd_buffer *iob;
6058 struct qeth_ipa_cmd *cmd;
6059
6060 QETH_DBF_TEXT(trace,4,"setdelmc");
6061
6062 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6063 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6064 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6065 if (addr->proto == QETH_PROT_IPV6)
6066 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6067 sizeof(struct in6_addr));
6068 else
6069 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6070
6071 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6072
6073 return rc;
6074}
6075static inline void
6076qeth_fill_netmask(u8 *netmask, unsigned int len)
6077{
6078 int i,j;
6079 for (i=0;i<16;i++) {
6080 j=(len)-(i*8);
6081 if (j >= 8)
6082 netmask[i] = 0xff;
6083 else if (j > 0)
6084 netmask[i] = (u8)(0xFF00>>j);
6085 else
6086 netmask[i] = 0;
6087 }
6088}
6089
6090static int
6091qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6092 int ipacmd, unsigned int flags)
6093{
6094 int rc;
6095 struct qeth_cmd_buffer *iob;
6096 struct qeth_ipa_cmd *cmd;
6097 __u8 netmask[16];
6098
6099 QETH_DBF_TEXT(trace,4,"setdelip");
6100 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6101
6102 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6103 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6104 if (addr->proto == QETH_PROT_IPV6) {
6105 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6106 sizeof(struct in6_addr));
6107 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6108 memcpy(cmd->data.setdelip6.mask, netmask,
6109 sizeof(struct in6_addr));
6110 cmd->data.setdelip6.flags = flags;
6111 } else {
6112 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6113 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6114 cmd->data.setdelip4.flags = flags;
6115 }
6116
6117 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6118
6119 return rc;
6120}
6121
6122static int
6123qeth_layer2_register_addr_entry(struct qeth_card *card,
6124 struct qeth_ipaddr *addr)
6125{
6126 if (!addr->is_multicast)
6127 return 0;
6128 QETH_DBF_TEXT(trace, 2, "setgmac");
6129 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6130 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6131}
6132
6133static int
6134qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6135 struct qeth_ipaddr *addr)
6136{
6137 if (!addr->is_multicast)
6138 return 0;
6139 QETH_DBF_TEXT(trace, 2, "delgmac");
6140 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6141 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6142}
6143
6144static int
6145qeth_layer3_register_addr_entry(struct qeth_card *card,
6146 struct qeth_ipaddr *addr)
6147{
6148 char buf[50];
6149 int rc;
6150 int cnt = 3;
6151
6152 if (addr->proto == QETH_PROT_IPV4) {
6153 QETH_DBF_TEXT(trace, 2,"setaddr4");
6154 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6155 } else if (addr->proto == QETH_PROT_IPV6) {
6156 QETH_DBF_TEXT(trace, 2, "setaddr6");
6157 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6158 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6159 } else {
6160 QETH_DBF_TEXT(trace, 2, "setaddr?");
6161 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6162 }
6163 do {
6164 if (addr->is_multicast)
6165 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6166 else
6167 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6168 addr->set_flags);
6169 if (rc)
6170 QETH_DBF_TEXT(trace, 2, "failed");
6171 } while ((--cnt > 0) && rc);
6172 if (rc){
6173 QETH_DBF_TEXT(trace, 2, "FAILED");
6174 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6175 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6176 buf, rc, rc);
6177 }
6178 return rc;
6179}
6180
6181static int
6182qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6183 struct qeth_ipaddr *addr)
6184{
6185 //char buf[50];
6186 int rc;
6187
6188 if (addr->proto == QETH_PROT_IPV4) {
6189 QETH_DBF_TEXT(trace, 2,"deladdr4");
6190 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6191 } else if (addr->proto == QETH_PROT_IPV6) {
6192 QETH_DBF_TEXT(trace, 2, "deladdr6");
6193 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6194 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6195 } else {
6196 QETH_DBF_TEXT(trace, 2, "deladdr?");
6197 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6198 }
6199 if (addr->is_multicast)
6200 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6201 else
6202 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6203 addr->del_flags);
6204 if (rc) {
6205 QETH_DBF_TEXT(trace, 2, "failed");
6206 /* TODO: re-activate this warning as soon as we have a
6207 * clean mirco code
6208 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6209 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6210 buf, rc);
6211 */
6212 }
6213 return rc;
6214}
6215
6216static int
6217qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6218{
6219 if (card->options.layer2)
6220 return qeth_layer2_register_addr_entry(card, addr);
6221
6222 return qeth_layer3_register_addr_entry(card, addr);
6223}
6224
6225static int
6226qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6227{
6228 if (card->options.layer2)
6229 return qeth_layer2_deregister_addr_entry(card, addr);
6230
6231 return qeth_layer3_deregister_addr_entry(card, addr);
6232}
6233
6234static u32
6235qeth_ethtool_get_tx_csum(struct net_device *dev)
6236{
6237 /* We may need to say that we support tx csum offload if
6238 * we do EDDP or TSO. There are discussions going on to
6239 * enforce rules in the stack and in ethtool that make
6240 * SG and TSO depend on HW_CSUM. At the moment there are
6241 * no such rules....
6242 * If we say yes here, we have to checksum outbound packets
6243 * any time. */
6244 return 0;
6245}
6246
6247static int
6248qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6249{
6250 return -EINVAL;
6251}
6252
6253static u32
6254qeth_ethtool_get_rx_csum(struct net_device *dev)
6255{
6256 struct qeth_card *card = (struct qeth_card *)dev->priv;
6257
6258 return (card->options.checksum_type == HW_CHECKSUMMING);
6259}
6260
6261static int
6262qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6263{
6264 struct qeth_card *card = (struct qeth_card *)dev->priv;
6265
6266 if ((card->state != CARD_STATE_DOWN) &&
6267 (card->state != CARD_STATE_RECOVER))
6268 return -EPERM;
6269 if (data)
6270 card->options.checksum_type = HW_CHECKSUMMING;
6271 else
6272 card->options.checksum_type = SW_CHECKSUMMING;
6273 return 0;
6274}
6275
6276static u32
6277qeth_ethtool_get_sg(struct net_device *dev)
6278{
6279 struct qeth_card *card = (struct qeth_card *)dev->priv;
6280
6281 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6282 (dev->features & NETIF_F_SG));
6283}
6284
6285static int
6286qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6287{
6288 struct qeth_card *card = (struct qeth_card *)dev->priv;
6289
6290 if (data) {
6291 if (card->options.large_send != QETH_LARGE_SEND_NO)
6292 dev->features |= NETIF_F_SG;
6293 else {
6294 dev->features &= ~NETIF_F_SG;
6295 return -EINVAL;
6296 }
6297 } else
6298 dev->features &= ~NETIF_F_SG;
6299 return 0;
6300}
6301
6302static u32
6303qeth_ethtool_get_tso(struct net_device *dev)
6304{
6305 struct qeth_card *card = (struct qeth_card *)dev->priv;
6306
6307 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6308 (dev->features & NETIF_F_TSO));
6309}
6310
6311static int
6312qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6313{
6314 struct qeth_card *card = (struct qeth_card *)dev->priv;
6315
6316 if (data) {
6317 if (card->options.large_send != QETH_LARGE_SEND_NO)
6318 dev->features |= NETIF_F_TSO;
6319 else {
6320 dev->features &= ~NETIF_F_TSO;
6321 return -EINVAL;
6322 }
6323 } else
6324 dev->features &= ~NETIF_F_TSO;
6325 return 0;
6326}
6327
6328static struct ethtool_ops qeth_ethtool_ops = {
6329 .get_tx_csum = qeth_ethtool_get_tx_csum,
6330 .set_tx_csum = qeth_ethtool_set_tx_csum,
6331 .get_rx_csum = qeth_ethtool_get_rx_csum,
6332 .set_rx_csum = qeth_ethtool_set_rx_csum,
6333 .get_sg = qeth_ethtool_get_sg,
6334 .set_sg = qeth_ethtool_set_sg,
6335 .get_tso = qeth_ethtool_get_tso,
6336 .set_tso = qeth_ethtool_set_tso,
6337};
6338
6339static int
6340qeth_netdev_init(struct net_device *dev)
6341{
6342 struct qeth_card *card;
6343
6344 card = (struct qeth_card *) dev->priv;
6345
6346 QETH_DBF_TEXT(trace,3,"initdev");
6347
6348 dev->tx_timeout = &qeth_tx_timeout;
6349 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6350 dev->open = qeth_open;
6351 dev->stop = qeth_stop;
6352 dev->hard_start_xmit = qeth_hard_start_xmit;
6353 dev->do_ioctl = qeth_do_ioctl;
6354 dev->get_stats = qeth_get_stats;
6355 dev->change_mtu = qeth_change_mtu;
6356 dev->neigh_setup = qeth_neigh_setup;
6357 dev->set_multicast_list = qeth_set_multicast_list;
6358#ifdef CONFIG_QETH_VLAN
6359 dev->vlan_rx_register = qeth_vlan_rx_register;
6360 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6361 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6362#endif
1da177e4
LT		 6363 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6364 dev->rebuild_header = NULL;
6365 dev->hard_header = NULL;
1da177e4
LT		 6366 dev->header_cache_update = NULL;
6367 dev->hard_header_cache = NULL;
6368 }
6369#ifdef CONFIG_QETH_IPV6
6370 /*IPv6 address autoconfiguration stuff*/
6371 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6372 card->dev->dev_id = card->info.unique_id & 0xffff;
6373#endif
e82b0f2c 6374 if (card->options.fake_ll &&
ba1aa084
UB		 6375 (qeth_get_netdev_flags(card) & IFF_NOARP))
6376 dev->hard_header = qeth_fake_header;
1da177e4
LT		 6377 dev->hard_header_parse = NULL;
6378 dev->set_mac_address = qeth_layer2_set_mac_address;
6379 dev->flags |= qeth_get_netdev_flags(card);
6380 if ((card->options.fake_broadcast) ||
6381 (card->info.broadcast_capable))
6382 dev->flags |= IFF_BROADCAST;
6383 dev->hard_header_len =
6384 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6385 dev->addr_len = OSA_ADDR_LEN;
6386 dev->mtu = card->info.initial_mtu;
500f83ab
UB		 6387 if (card->info.type != QETH_CARD_TYPE_OSN)
6388 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
1da177e4
LT		 6389 SET_MODULE_OWNER(dev);
6390 return 0;
6391}
6392
6393static void
6394qeth_init_func_level(struct qeth_card *card)
6395{
6396 if (card->ipato.enabled) {
6397 if (card->info.type == QETH_CARD_TYPE_IQD)
6398 card->info.func_level =
6399 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6400 else
6401 card->info.func_level =
6402 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6403 } else {
6404 if (card->info.type == QETH_CARD_TYPE_IQD)
500f83ab 6405 /*FIXME:why do we have same values for dis and ena for osae??? */
1da177e4
LT		 6406 card->info.func_level =
6407 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6408 else
6409 card->info.func_level =
6410 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6411 }
6412}
6413
6414/**
6415 * hardsetup card, initialize MPC and QDIO stuff
6416 */
6417static int
6418qeth_hardsetup_card(struct qeth_card *card)
6419{
6420 int retries = 3;
6421 int rc;
6422
6423 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6424
6425retry:
6426 if (retries < 3){
6427 PRINT_WARN("Retrying to do IDX activates.\n");
6428 ccw_device_set_offline(CARD_DDEV(card));
6429 ccw_device_set_offline(CARD_WDEV(card));
6430 ccw_device_set_offline(CARD_RDEV(card));
6431 ccw_device_set_online(CARD_RDEV(card));
6432 ccw_device_set_online(CARD_WDEV(card));
6433 ccw_device_set_online(CARD_DDEV(card));
6434 }
500f83ab 6435 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 6436 if (rc == -ERESTARTSYS) {
6437 QETH_DBF_TEXT(setup, 2, "break1");
6438 return rc;
6439 } else if (rc) {
6440 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6441 if (--retries < 0)
6442 goto out;
6443 else
6444 goto retry;
6445 }
6446 if ((rc = qeth_get_unitaddr(card))){
6447 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6448 return rc;
6449 }
6450 qeth_init_tokens(card);
6451 qeth_init_func_level(card);
6452 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6453 if (rc == -ERESTARTSYS) {
6454 QETH_DBF_TEXT(setup, 2, "break2");
6455 return rc;
6456 } else if (rc) {
6457 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6458 if (--retries < 0)
6459 goto out;
6460 else
6461 goto retry;
6462 }
6463 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6464 if (rc == -ERESTARTSYS) {
6465 QETH_DBF_TEXT(setup, 2, "break3");
6466 return rc;
6467 } else if (rc) {
6468 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6469 if (--retries < 0)
6470 goto out;
6471 else
6472 goto retry;
6473 }
6474 if ((rc = qeth_mpc_initialize(card))){
6475 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6476 goto out;
6477 }
6478 /*network device will be recovered*/
6479 if (card->dev) {
6480 card->dev->hard_header = card->orig_hard_header;
e82b0f2c 6481 if (card->options.fake_ll &&
b85e1fa1
UB		 6482 (qeth_get_netdev_flags(card) & IFF_NOARP))
6483 card->dev->hard_header = qeth_fake_header;
1da177e4
LT		 6484 return 0;
6485 }
6486 /* at first set_online allocate netdev */
6487 card->dev = qeth_get_netdevice(card->info.type,
6488 card->info.link_type);
6489 if (!card->dev){
500f83ab
UB		 6490 qeth_qdio_clear_card(card, card->info.type !=
6491 QETH_CARD_TYPE_IQD);
1da177e4
LT		 6492 rc = -ENODEV;
6493 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6494 goto out;
6495 }
6496 card->dev->priv = card;
6497 card->orig_hard_header = card->dev->hard_header;
6498 card->dev->type = qeth_get_arphdr_type(card->info.type,
6499 card->info.link_type);
6500 card->dev->init = qeth_netdev_init;
6501 return 0;
6502out:
6503 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6504 return rc;
6505}
6506
6507static int
6508qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6509 unsigned long data)
6510{
6511 struct qeth_ipa_cmd *cmd;
6512
6513 QETH_DBF_TEXT(trace,4,"defadpcb");
6514
6515 cmd = (struct qeth_ipa_cmd *) data;
6516 if (cmd->hdr.return_code == 0){
6517 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6518 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6519 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6520#ifdef CONFIG_QETH_IPV6
6521 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6522 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6523#endif
6524 }
6525 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6526 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6527 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6528 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6529 }
6530 return 0;
6531}
6532
6533static int
6534qeth_default_setadapterparms_cb(struct qeth_card *card,
6535 struct qeth_reply *reply,
6536 unsigned long data)
6537{
6538 struct qeth_ipa_cmd *cmd;
6539
6540 QETH_DBF_TEXT(trace,4,"defadpcb");
6541
6542 cmd = (struct qeth_ipa_cmd *) data;
6543 if (cmd->hdr.return_code == 0)
6544 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6545 return 0;
6546}
6547
6c951b90
FP		 6548
6549
1da177e4
LT		 6550static int
6551qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6552 unsigned long data)
6553{
6554 struct qeth_ipa_cmd *cmd;
6555
6556 QETH_DBF_TEXT(trace,3,"quyadpcb");
6557
6558 cmd = (struct qeth_ipa_cmd *) data;
6559 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6560 card->info.link_type =
6561 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6562 card->options.adp.supported_funcs =
6563 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6564 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6565}
6566
6567static int
6568qeth_query_setadapterparms(struct qeth_card *card)
6569{
6570 int rc;
6571 struct qeth_cmd_buffer *iob;
6572
6573 QETH_DBF_TEXT(trace,3,"queryadp");
6574 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6575 sizeof(struct qeth_ipacmd_setadpparms));
6576 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6577 return rc;
6578}
6579
6580static int
6581qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6582 struct qeth_reply *reply,
6583 unsigned long data)
6584{
6585 struct qeth_ipa_cmd *cmd;
6586
6587 QETH_DBF_TEXT(trace,4,"chgmaccb");
6588
6589 cmd = (struct qeth_ipa_cmd *) data;
e08d88cc 6590 if (!card->options.layer2 || card->info.guestlan ||
e82b0f2c 6591 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
e08d88cc
FP		 6592 memcpy(card->dev->dev_addr,
6593 &cmd->data.setadapterparms.data.change_addr.addr,
6594 OSA_ADDR_LEN);
6595 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6596 }
1da177e4
LT		 6597 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6598 return 0;
6599}
6600
6601static int
6602qeth_setadpparms_change_macaddr(struct qeth_card *card)
6603{
6604 int rc;
6605 struct qeth_cmd_buffer *iob;
6606 struct qeth_ipa_cmd *cmd;
6607
6608 QETH_DBF_TEXT(trace,4,"chgmac");
6609
6610 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6611 sizeof(struct qeth_ipacmd_setadpparms));
6612 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6613 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6614 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6615 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6616 card->dev->dev_addr, OSA_ADDR_LEN);
6617 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6618 NULL);
6619 return rc;
6620}
6621
6622static int
6623qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6624{
6625 int rc;
6626 struct qeth_cmd_buffer *iob;
6627 struct qeth_ipa_cmd *cmd;
6628
6629 QETH_DBF_TEXT(trace,4,"adpmode");
6630
6631 iob = qeth_get_adapter_cmd(card, command,
6632 sizeof(struct qeth_ipacmd_setadpparms));
6633 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6634 cmd->data.setadapterparms.data.mode = mode;
6635 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6636 NULL);
6637 return rc;
6638}
6639
6640static inline int
6641qeth_setadapter_hstr(struct qeth_card *card)
6642{
6643 int rc;
6644
6645 QETH_DBF_TEXT(trace,4,"adphstr");
6646
6647 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6648 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6649 card->options.broadcast_mode);
6650 if (rc)
6651 PRINT_WARN("couldn't set broadcast mode on "
6652 "device %s: x%x\n",
6653 CARD_BUS_ID(card), rc);
6654 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6655 card->options.macaddr_mode);
6656 if (rc)
6657 PRINT_WARN("couldn't set macaddr mode on "
6658 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6659 return rc;
6660 }
6661 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6662 PRINT_WARN("set adapter parameters not available "
6663 "to set broadcast mode, using ALLRINGS "
6664 "on device %s:\n", CARD_BUS_ID(card));
6665 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6666 PRINT_WARN("set adapter parameters not available "
6667 "to set macaddr mode, using NONCANONICAL "
6668 "on device %s:\n", CARD_BUS_ID(card));
6669 return 0;
6670}
6671
6672static int
6673qeth_setadapter_parms(struct qeth_card *card)
6674{
6675 int rc;
6676
6677 QETH_DBF_TEXT(setup, 2, "setadprm");
6678
6679 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6680 PRINT_WARN("set adapter parameters not supported "
6681 "on device %s.\n",
6682 CARD_BUS_ID(card));
6683 QETH_DBF_TEXT(setup, 2, " notsupp");
6684 return 0;
6685 }
6686 rc = qeth_query_setadapterparms(card);
6687 if (rc) {
6688 PRINT_WARN("couldn't set adapter parameters on device %s: "
6689 "x%x\n", CARD_BUS_ID(card), rc);
6690 return rc;
6691 }
6692 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6693 rc = qeth_setadpparms_change_macaddr(card);
6694 if (rc)
6695 PRINT_WARN("couldn't get MAC address on "
6696 "device %s: x%x\n",
6697 CARD_BUS_ID(card), rc);
6698 }
6699
6700 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6701 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6702 rc = qeth_setadapter_hstr(card);
6703
6704 return rc;
6705}
6706
6707static int
6708qeth_layer2_initialize(struct qeth_card *card)
6709{
6710 int rc = 0;
6711
6712
6713 QETH_DBF_TEXT(setup, 2, "doL2init");
6714 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6715
6c951b90
FP		 6716 rc = qeth_query_setadapterparms(card);
6717 if (rc) {
6718 PRINT_WARN("could not query adapter parameters on device %s: "
6719 "x%x\n", CARD_BUS_ID(card), rc);
6720 }
6721
1da177e4
LT		 6722 rc = qeth_setadpparms_change_macaddr(card);
6723 if (rc) {
6724 PRINT_WARN("couldn't get MAC address on "
6725 "device %s: x%x\n",
6726 CARD_BUS_ID(card), rc);
6727 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6728 return rc;
6729 }
6730 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6731
6732 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6733 if (rc)
6734 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6735 return 0;
6736}
6737
6738
6739static int
6740qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6741 enum qeth_prot_versions prot)
6742{
6743 int rc;
6744 struct qeth_cmd_buffer *iob;
6745
6746 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6747 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6748
6749 return rc;
6750}
6751
6752static int
6753qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6754{
6755 int rc;
6756
6757 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6758
6759 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6760 return rc;
6761}
6762
6763static int
6764qeth_send_stoplan(struct qeth_card *card)
6765{
6766 int rc = 0;
6767
6768 /*
6769 * TODO: according to the IPA format document page 14,
6770 * TCP/IP (we!) never issue a STOPLAN
6771 * is this right ?!?
6772 */
6773 QETH_DBF_TEXT(trace, 2, "stoplan");
6774
6775 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6776 return rc;
6777}
6778
6779static int
6780qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6781 unsigned long data)
6782{
6783 struct qeth_ipa_cmd *cmd;
6784
6785 QETH_DBF_TEXT(setup, 2, "qipasscb");
6786
6787 cmd = (struct qeth_ipa_cmd *) data;
6788 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6789 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6790 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
9123e0d7
UB		 6791 /* Disable IPV6 support hard coded for Hipersockets */
6792 if(card->info.type == QETH_CARD_TYPE_IQD)
6793 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
1da177e4
LT		 6794 } else {
6795#ifdef CONFIG_QETH_IPV6
6796 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6797 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6798#endif
6799 }
6800 QETH_DBF_TEXT(setup, 2, "suppenbl");
6801 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6802 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6803 return 0;
6804}
6805
6806static int
6807qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6808{
6809 int rc;
6810 struct qeth_cmd_buffer *iob;
6811
6812 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6813 if (card->options.layer2) {
6814 QETH_DBF_TEXT(setup, 2, "noprmly2");
6815 return -EPERM;
6816 }
6817
6818 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6819 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6820 return rc;
6821}
6822
6823static struct qeth_cmd_buffer *
6824qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6825 __u16 cmd_code, __u16 len,
6826 enum qeth_prot_versions prot)
6827{
6828 struct qeth_cmd_buffer *iob;
6829 struct qeth_ipa_cmd *cmd;
6830
6831 QETH_DBF_TEXT(trace,4,"getasscm");
6832 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6833
6834 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6835 cmd->data.setassparms.hdr.assist_no = ipa_func;
6836 cmd->data.setassparms.hdr.length = 8 + len;
6837 cmd->data.setassparms.hdr.command_code = cmd_code;
6838 cmd->data.setassparms.hdr.return_code = 0;
6839 cmd->data.setassparms.hdr.seq_no = 0;
6840
6841 return iob;
6842}
6843
6844static int
6845qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6846 __u16 len, long data,
6847 int (*reply_cb)
6848 (struct qeth_card *,struct qeth_reply *,unsigned long),
6849 void *reply_param)
6850{
6851 int rc;
6852 struct qeth_ipa_cmd *cmd;
6853
6854 QETH_DBF_TEXT(trace,4,"sendassp");
6855
6856 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6857 if (len <= sizeof(__u32))
6858 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1380fee2 6859 else /* (len > sizeof(__u32)) */
1da177e4
LT		 6860 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6861
6862 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6863 return rc;
6864}
6865
6866#ifdef CONFIG_QETH_IPV6
6867static int
6868qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6869 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6870
6871{
6872 int rc;
6873 struct qeth_cmd_buffer *iob;
6874
6875 QETH_DBF_TEXT(trace,4,"simassp6");
6876 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6877 0, QETH_PROT_IPV6);
6878 rc = qeth_send_setassparms(card, iob, 0, 0,
6879 qeth_default_setassparms_cb, NULL);
6880 return rc;
6881}
6882#endif
6883
6884static int
6885qeth_send_simple_setassparms(struct qeth_card *card,
6886 enum qeth_ipa_funcs ipa_func,
6887 __u16 cmd_code, long data)
6888{
6889 int rc;
6890 int length = 0;
6891 struct qeth_cmd_buffer *iob;
6892
6893 QETH_DBF_TEXT(trace,4,"simassp4");
6894 if (data)
6895 length = sizeof(__u32);
6896 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6897 length, QETH_PROT_IPV4);
6898 rc = qeth_send_setassparms(card, iob, length, data,
6899 qeth_default_setassparms_cb, NULL);
6900 return rc;
6901}
6902
6903static inline int
6904qeth_start_ipa_arp_processing(struct qeth_card *card)
6905{
6906 int rc;
6907
6908 QETH_DBF_TEXT(trace,3,"ipaarp");
6909
6910 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6911 PRINT_WARN("ARP processing not supported "
6912 "on %s!\n", QETH_CARD_IFNAME(card));
6913 return 0;
6914 }
6915 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6916 IPA_CMD_ASS_START, 0);
6917 if (rc) {
6918 PRINT_WARN("Could not start ARP processing "
6919 "assist on %s: 0x%x\n",
6920 QETH_CARD_IFNAME(card), rc);
6921 }
6922 return rc;
6923}
6924
6925static int
6926qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6927{
6928 int rc;
6929
6930 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6931
6932 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6933 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6934 QETH_CARD_IFNAME(card));
6935 return -EOPNOTSUPP;
6936 }
6937
6938 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6939 IPA_CMD_ASS_START, 0);
6940 if (rc) {
6941 PRINT_WARN("Could not start Hardware IP fragmentation "
6942 "assist on %s: 0x%x\n",
6943 QETH_CARD_IFNAME(card), rc);
6944 } else
6945 PRINT_INFO("Hardware IP fragmentation enabled \n");
6946 return rc;
6947}
6948
6949static int
6950qeth_start_ipa_source_mac(struct qeth_card *card)
6951{
6952 int rc;
6953
6954 QETH_DBF_TEXT(trace,3,"stsrcmac");
6955
6956 if (!card->options.fake_ll)
6957 return -EOPNOTSUPP;
6958
6959 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6960 PRINT_INFO("Inbound source address not "
6961 "supported on %s\n", QETH_CARD_IFNAME(card));
6962 return -EOPNOTSUPP;
6963 }
6964
6965 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6966 IPA_CMD_ASS_START, 0);
6967 if (rc)
6968 PRINT_WARN("Could not start inbound source "
6969 "assist on %s: 0x%x\n",
6970 QETH_CARD_IFNAME(card), rc);
6971 return rc;
6972}
6973
6974static int
6975qeth_start_ipa_vlan(struct qeth_card *card)
6976{
6977 int rc = 0;
6978
6979 QETH_DBF_TEXT(trace,3,"strtvlan");
6980
6981#ifdef CONFIG_QETH_VLAN
6982 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6983 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6984 return -EOPNOTSUPP;
6985 }
6986
6987 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6988 IPA_CMD_ASS_START,0);
6989 if (rc) {
6990 PRINT_WARN("Could not start vlan "
6991 "assist on %s: 0x%x\n",
6992 QETH_CARD_IFNAME(card), rc);
6993 } else {
6994 PRINT_INFO("VLAN enabled \n");
6995 card->dev->features |=
6996 NETIF_F_HW_VLAN_FILTER |
6997 NETIF_F_HW_VLAN_TX |
6998 NETIF_F_HW_VLAN_RX;
6999 }
7000#endif /* QETH_VLAN */
7001 return rc;
7002}
7003
7004static int
7005qeth_start_ipa_multicast(struct qeth_card *card)
7006{
7007 int rc;
7008
7009 QETH_DBF_TEXT(trace,3,"stmcast");
7010
7011 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7012 PRINT_WARN("Multicast not supported on %s\n",
7013 QETH_CARD_IFNAME(card));
7014 return -EOPNOTSUPP;
7015 }
7016
7017 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7018 IPA_CMD_ASS_START,0);
7019 if (rc) {
7020 PRINT_WARN("Could not start multicast "
7021 "assist on %s: rc=%i\n",
7022 QETH_CARD_IFNAME(card), rc);
7023 } else {
7024 PRINT_INFO("Multicast enabled\n");
7025 card->dev->flags |= IFF_MULTICAST;
7026 }
7027 return rc;
7028}
7029
7030#ifdef CONFIG_QETH_IPV6
7031static int
7032qeth_softsetup_ipv6(struct qeth_card *card)
7033{
7034 int rc;
7035
7036 QETH_DBF_TEXT(trace,3,"softipv6");
7037
1da177e4
LT		 7038 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7039 if (rc) {
7040 PRINT_ERR("IPv6 startlan failed on %s\n",
7041 QETH_CARD_IFNAME(card));
7042 return rc;
7043 }
1da177e4
LT		 7044 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7045 if (rc) {
7046 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7047 QETH_CARD_IFNAME(card));
7048 return rc;
7049 }
7050 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7051 IPA_CMD_ASS_START, 3);
7052 if (rc) {
7053 PRINT_WARN("IPv6 start assist (version 4) failed "
7054 "on %s: 0x%x\n",
7055 QETH_CARD_IFNAME(card), rc);
7056 return rc;
7057 }
7058 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7059 IPA_CMD_ASS_START);
7060 if (rc) {
7061 PRINT_WARN("IPV6 start assist (version 6) failed "
7062 "on %s: 0x%x\n",
7063 QETH_CARD_IFNAME(card), rc);
7064 return rc;
7065 }
7066 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7067 IPA_CMD_ASS_START);
7068 if (rc) {
7069 PRINT_WARN("Could not enable passthrough "
7070 "on %s: 0x%x\n",
7071 QETH_CARD_IFNAME(card), rc);
7072 return rc;
7073 }
7074 PRINT_INFO("IPV6 enabled \n");
7075 return 0;
7076}
7077
7078#endif
7079
7080static int
7081qeth_start_ipa_ipv6(struct qeth_card *card)
7082{
7083 int rc = 0;
7084#ifdef CONFIG_QETH_IPV6
7085 QETH_DBF_TEXT(trace,3,"strtipv6");
7086
7087 if (!qeth_is_supported(card, IPA_IPV6)) {
7088 PRINT_WARN("IPv6 not supported on %s\n",
7089 QETH_CARD_IFNAME(card));
7090 return 0;
7091 }
7092 rc = qeth_softsetup_ipv6(card);
7093#endif
7094 return rc ;
7095}
7096
7097static int
7098qeth_start_ipa_broadcast(struct qeth_card *card)
7099{
7100 int rc;
7101
7102 QETH_DBF_TEXT(trace,3,"stbrdcst");
7103 card->info.broadcast_capable = 0;
7104 if (!qeth_is_supported(card, IPA_FILTERING)) {
7105 PRINT_WARN("Broadcast not supported on %s\n",
7106 QETH_CARD_IFNAME(card));
7107 rc = -EOPNOTSUPP;
7108 goto out;
7109 }
7110 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7111 IPA_CMD_ASS_START, 0);
7112 if (rc) {
7113 PRINT_WARN("Could not enable broadcasting filtering "
7114 "on %s: 0x%x\n",
7115 QETH_CARD_IFNAME(card), rc);
7116 goto out;
7117 }
7118
7119 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7120 IPA_CMD_ASS_CONFIGURE, 1);
7121 if (rc) {
7122 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7123 QETH_CARD_IFNAME(card), rc);
7124 goto out;
7125 }
7126 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7127 PRINT_INFO("Broadcast enabled \n");
7128 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7129 IPA_CMD_ASS_ENABLE, 1);
7130 if (rc) {
7131 PRINT_WARN("Could not set up broadcast echo filtering on "
7132 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7133 goto out;
7134 }
7135 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7136out:
7137 if (card->info.broadcast_capable)
7138 card->dev->flags |= IFF_BROADCAST;
7139 else
7140 card->dev->flags &= ~IFF_BROADCAST;
7141 return rc;
7142}
7143
7144static int
7145qeth_send_checksum_command(struct qeth_card *card)
7146{
7147 int rc;
7148
7149 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7150 IPA_CMD_ASS_START, 0);
7151 if (rc) {
7152 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7153 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7154 QETH_CARD_IFNAME(card), rc);
7155 return rc;
7156 }
7157 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7158 IPA_CMD_ASS_ENABLE,
7159 card->info.csum_mask);
7160 if (rc) {
7161 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7162 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7163 QETH_CARD_IFNAME(card), rc);
7164 return rc;
7165 }
7166 return 0;
7167}
7168
7169static int
7170qeth_start_ipa_checksum(struct qeth_card *card)
7171{
7172 int rc = 0;
7173
7174 QETH_DBF_TEXT(trace,3,"strtcsum");
7175
7176 if (card->options.checksum_type == NO_CHECKSUMMING) {
7177 PRINT_WARN("Using no checksumming on %s.\n",
7178 QETH_CARD_IFNAME(card));
7179 return 0;
7180 }
7181 if (card->options.checksum_type == SW_CHECKSUMMING) {
7182 PRINT_WARN("Using SW checksumming on %s.\n",
7183 QETH_CARD_IFNAME(card));
7184 return 0;
7185 }
7186 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7187 PRINT_WARN("Inbound HW Checksumming not "
7188 "supported on %s,\ncontinuing "
7189 "using Inbound SW Checksumming\n",
7190 QETH_CARD_IFNAME(card));
7191 card->options.checksum_type = SW_CHECKSUMMING;
7192 return 0;
7193 }
7194 rc = qeth_send_checksum_command(card);
7195 if (!rc) {
7196 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7197 }
7198 return rc;
7199}
7200
7201static int
7202qeth_start_ipa_tso(struct qeth_card *card)
7203{
7204 int rc;
7205
7206 QETH_DBF_TEXT(trace,3,"sttso");
7207
7208 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7209 PRINT_WARN("Outbound TSO not supported on %s\n",
7210 QETH_CARD_IFNAME(card));
7211 rc = -EOPNOTSUPP;
7212 } else {
7213 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7214 IPA_CMD_ASS_START,0);
7215 if (rc)
7216 PRINT_WARN("Could not start outbound TSO "
7217 "assist on %s: rc=%i\n",
7218 QETH_CARD_IFNAME(card), rc);
7219 else
7220 PRINT_INFO("Outbound TSO enabled\n");
7221 }
7222 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7223 card->options.large_send = QETH_LARGE_SEND_NO;
7224 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7225 }
7226 return rc;
7227}
7228
7229static int
7230qeth_start_ipassists(struct qeth_card *card)
7231{
7232 QETH_DBF_TEXT(trace,3,"strtipas");
7233 qeth_start_ipa_arp_processing(card); /* go on*/
7234 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7235 qeth_start_ipa_source_mac(card); /* go on*/
7236 qeth_start_ipa_vlan(card); /* go on*/
7237 qeth_start_ipa_multicast(card); /* go on*/
7238 qeth_start_ipa_ipv6(card); /* go on*/
7239 qeth_start_ipa_broadcast(card); /* go on*/
7240 qeth_start_ipa_checksum(card); /* go on*/
7241 qeth_start_ipa_tso(card); /* go on*/
7242 return 0;
7243}
7244
7245static int
7246qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7247 enum qeth_prot_versions prot)
7248{
7249 int rc;
7250 struct qeth_ipa_cmd *cmd;
7251 struct qeth_cmd_buffer *iob;
7252
7253 QETH_DBF_TEXT(trace,4,"setroutg");
7254 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7255 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7256 cmd->data.setrtg.type = (type);
7257 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7258
7259 return rc;
7260
7261}
7262
7263static void
7264qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7265 enum qeth_prot_versions prot)
7266{
7267 if (card->info.type == QETH_CARD_TYPE_IQD) {
7268 switch (*type) {
7269 case NO_ROUTER:
7270 case PRIMARY_CONNECTOR:
7271 case SECONDARY_CONNECTOR:
7272 case MULTICAST_ROUTER:
7273 return;
7274 default:
7275 goto out_inval;
7276 }
7277 } else {
7278 switch (*type) {
7279 case NO_ROUTER:
7280 case PRIMARY_ROUTER:
7281 case SECONDARY_ROUTER:
7282 return;
7283 case MULTICAST_ROUTER:
7284 if (qeth_is_ipafunc_supported(card, prot,
7285 IPA_OSA_MC_ROUTER))
7286 return;
7287 default:
7288 goto out_inval;
7289 }
7290 }
7291out_inval:
7292 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7293 "Router status set to 'no router'.\n",
7294 ((*type == PRIMARY_ROUTER)? "primary router" :
7295 (*type == SECONDARY_ROUTER)? "secondary router" :
7296 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7297 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7298 (*type == MULTICAST_ROUTER)? "multicast router" :
7299 "unknown"),
7300 card->dev->name);
7301 *type = NO_ROUTER;
7302}
7303
7304int
7305qeth_setrouting_v4(struct qeth_card *card)
7306{
7307 int rc;
7308
7309 QETH_DBF_TEXT(trace,3,"setrtg4");
7310
7311 qeth_correct_routing_type(card, &card->options.route4.type,
7312 QETH_PROT_IPV4);
7313
7314 rc = qeth_send_setrouting(card, card->options.route4.type,
7315 QETH_PROT_IPV4);
7316 if (rc) {
7317 card->options.route4.type = NO_ROUTER;
7318 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7319 "Type set to 'no router'.\n",
7320 rc, QETH_CARD_IFNAME(card));
7321 }
7322 return rc;
7323}
7324
7325int
7326qeth_setrouting_v6(struct qeth_card *card)
7327{
7328 int rc = 0;
7329
7330 QETH_DBF_TEXT(trace,3,"setrtg6");
7331#ifdef CONFIG_QETH_IPV6
7332
7333 qeth_correct_routing_type(card, &card->options.route6.type,
7334 QETH_PROT_IPV6);
7335
1da177e4
LT		 7336 rc = qeth_send_setrouting(card, card->options.route6.type,
7337 QETH_PROT_IPV6);
7338 if (rc) {
7339 card->options.route6.type = NO_ROUTER;
7340 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7341 "Type set to 'no router'.\n",
7342 rc, QETH_CARD_IFNAME(card));
7343 }
7344#endif
7345 return rc;
7346}
7347
7348int
9cb90de8 7349qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
1da177e4
LT		 7350{
7351 int rc = 0;
7352
9cb90de8
FP		 7353 if (card->dev == NULL) {
7354 card->options.large_send = type;
1da177e4 7355 return 0;
9cb90de8 7356 }
b85e1fa1
UB		 7357 if (card->state == CARD_STATE_UP)
7358 netif_tx_disable(card->dev);
9cb90de8 7359 card->options.large_send = type;
1da177e4
LT		 7360 switch (card->options.large_send) {
7361 case QETH_LARGE_SEND_EDDP:
7362 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7363 break;
7364 case QETH_LARGE_SEND_TSO:
7365 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7366 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7367 } else {
7368 PRINT_WARN("TSO not supported on %s. "
7369 "large_send set to 'no'.\n",
7370 card->dev->name);
7371 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7372 card->options.large_send = QETH_LARGE_SEND_NO;
7373 rc = -EOPNOTSUPP;
7374 }
7375 break;
7376 default: /* includes QETH_LARGE_SEND_NO */
7377 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7378 break;
7379 }
b85e1fa1
UB		 7380 if (card->state == CARD_STATE_UP)
7381 netif_wake_queue(card->dev);
1da177e4
LT		 7382 return rc;
7383}
7384
7385/*
7386 * softsetup card: init IPA stuff
7387 */
7388static int
7389qeth_softsetup_card(struct qeth_card *card)
7390{
7391 int rc;
7392
7393 QETH_DBF_TEXT(setup, 2, "softsetp");
7394
7395 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7396 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7397 if (rc == 0xe080){
7398 PRINT_WARN("LAN on card %s if offline! "
7399 "Continuing softsetup.\n",
7400 CARD_BUS_ID(card));
7401 card->lan_online = 0;
7402 } else
7403 return rc;
7404 } else
7405 card->lan_online = 1;
500f83ab
UB		 7406 if (card->info.type==QETH_CARD_TYPE_OSN)
7407 goto out;
66cc5d5a 7408 qeth_set_large_send(card, card->options.large_send);
1da177e4
LT		 7409 if (card->options.layer2) {
7410 card->dev->features |=
7411 NETIF_F_HW_VLAN_FILTER |
7412 NETIF_F_HW_VLAN_TX |
7413 NETIF_F_HW_VLAN_RX;
7414 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7415 card->info.broadcast_capable=1;
7416 if ((rc = qeth_layer2_initialize(card))) {
7417 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7418 return rc;
7419 }
7420#ifdef CONFIG_QETH_VLAN
7421 qeth_layer2_process_vlans(card, 0);
7422#endif
7423 goto out;
7424 }
1da177e4
LT		 7425 if ((rc = qeth_setadapter_parms(card)))
7426 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7427 if ((rc = qeth_start_ipassists(card)))
7428 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7429 if ((rc = qeth_setrouting_v4(card)))
7430 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7431 if ((rc = qeth_setrouting_v6(card)))
7432 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7433out:
b85e1fa1 7434 netif_tx_disable(card->dev);
1da177e4
LT		 7435 return 0;
7436}
7437
7438#ifdef CONFIG_QETH_IPV6
7439static int
7440qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7441 unsigned long data)
7442{
7443 struct qeth_ipa_cmd *cmd;
7444
7445 cmd = (struct qeth_ipa_cmd *) data;
7446 if (cmd->hdr.return_code == 0)
7447 card->info.unique_id = *((__u16 *)
7448 &cmd->data.create_destroy_addr.unique_id[6]);
7449 else {
7450 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7451 UNIQUE_ID_NOT_BY_CARD;
7452 PRINT_WARN("couldn't get a unique id from the card on device "
7453 "%s (result=x%x), using default id. ipv6 "
7454 "autoconfig on other lpars may lead to duplicate "
7455 "ip addresses. please use manually "
7456 "configured ones.\n",
7457 CARD_BUS_ID(card), cmd->hdr.return_code);
7458 }
7459 return 0;
7460}
7461#endif
7462
7463static int
7464qeth_put_unique_id(struct qeth_card *card)
7465{
7466
7467 int rc = 0;
7468#ifdef CONFIG_QETH_IPV6
7469 struct qeth_cmd_buffer *iob;
7470 struct qeth_ipa_cmd *cmd;
7471
7472 QETH_DBF_TEXT(trace,2,"puniqeid");
7473
7474 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7475 UNIQUE_ID_NOT_BY_CARD)
7476 return -1;
7477 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7478 QETH_PROT_IPV6);
7479 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7480 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7481 card->info.unique_id;
7482 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7483 card->dev->dev_addr, OSA_ADDR_LEN);
7484 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7485#else
7486 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7487 UNIQUE_ID_NOT_BY_CARD;
7488#endif
7489 return rc;
7490}
7491
7492/**
7493 * Clear IP List
7494 */
7495static void
7496qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7497{
7498 struct qeth_ipaddr *addr, *tmp;
7499 unsigned long flags;
7500
7501 QETH_DBF_TEXT(trace,4,"clearip");
7502 spin_lock_irqsave(&card->ip_lock, flags);
7503 /* clear todo list */
7504 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7505 list_del(&addr->entry);
7506 kfree(addr);
7507 }
7508
7509 while (!list_empty(&card->ip_list)) {
7510 addr = list_entry(card->ip_list.next,
7511 struct qeth_ipaddr, entry);
7512 list_del_init(&addr->entry);
7513 if (clean) {
7514 spin_unlock_irqrestore(&card->ip_lock, flags);
7515 qeth_deregister_addr_entry(card, addr);
7516 spin_lock_irqsave(&card->ip_lock, flags);
7517 }
7518 if (!recover || addr->is_multicast) {
7519 kfree(addr);
7520 continue;
7521 }
7522 list_add_tail(&addr->entry, card->ip_tbd_list);
7523 }
7524 spin_unlock_irqrestore(&card->ip_lock, flags);
7525}
7526
7527static void
7528qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7529 int clear_start_mask)
7530{
7531 unsigned long flags;
7532
7533 spin_lock_irqsave(&card->thread_mask_lock, flags);
7534 card->thread_allowed_mask = threads;
7535 if (clear_start_mask)
7536 card->thread_start_mask &= threads;
7537 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7538 wake_up(&card->wait_q);
7539}
7540
7541static inline int
7542qeth_threads_running(struct qeth_card *card, unsigned long threads)
7543{
7544 unsigned long flags;
7545 int rc = 0;
7546
7547 spin_lock_irqsave(&card->thread_mask_lock, flags);
7548 rc = (card->thread_running_mask & threads);
7549 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7550 return rc;
7551}
7552
7553static int
7554qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7555{
7556 return wait_event_interruptible(card->wait_q,
7557 qeth_threads_running(card, threads) == 0);
7558}
7559
7560static int
05e08a2a 7561qeth_stop_card(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7562{
7563 int rc = 0;
7564
7565 QETH_DBF_TEXT(setup ,2,"stopcard");
7566 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7567
7568 qeth_set_allowed_threads(card, 0, 1);
7569 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7570 return -ERESTARTSYS;
7571 if (card->read.state == CH_STATE_UP &&
7572 card->write.state == CH_STATE_UP &&
7573 (card->state == CARD_STATE_UP)) {
e82b0f2c 7574 if (recovery_mode &&
500f83ab 7575 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7576 qeth_stop(card->dev);
7577 } else {
7578 rtnl_lock();
7579 dev_close(card->dev);
7580 rtnl_unlock();
7581 }
1da177e4
LT		 7582 if (!card->use_hard_stop) {
7583 __u8 *mac = &card->dev->dev_addr[0];
7584 rc = qeth_layer2_send_delmac(card, mac);
7585 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7586 if ((rc = qeth_send_stoplan(card)))
7587 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7588 }
7589 card->state = CARD_STATE_SOFTSETUP;
7590 }
7591 if (card->state == CARD_STATE_SOFTSETUP) {
7592#ifdef CONFIG_QETH_VLAN
7593 if (card->options.layer2)
7594 qeth_layer2_process_vlans(card, 1);
7595#endif
7596 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7597 qeth_clear_ipacmd_list(card);
7598 card->state = CARD_STATE_HARDSETUP;
7599 }
7600 if (card->state == CARD_STATE_HARDSETUP) {
7601 if ((!card->use_hard_stop) &&
7602 (!card->options.layer2))
7603 if ((rc = qeth_put_unique_id(card)))
7604 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7605 qeth_qdio_clear_card(card, 0);
7606 qeth_clear_qdio_buffers(card);
7607 qeth_clear_working_pool_list(card);
7608 card->state = CARD_STATE_DOWN;
7609 }
7610 if (card->state == CARD_STATE_DOWN) {
7611 qeth_clear_cmd_buffers(&card->read);
7612 qeth_clear_cmd_buffers(&card->write);
7613 }
7614 card->use_hard_stop = 0;
7615 return rc;
7616}
7617
7618
7619static int
7620qeth_get_unique_id(struct qeth_card *card)
7621{
7622 int rc = 0;
7623#ifdef CONFIG_QETH_IPV6
7624 struct qeth_cmd_buffer *iob;
7625 struct qeth_ipa_cmd *cmd;
7626
7627 QETH_DBF_TEXT(setup, 2, "guniqeid");
7628
7629 if (!qeth_is_supported(card,IPA_IPV6)) {
7630 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7631 UNIQUE_ID_NOT_BY_CARD;
7632 return 0;
7633 }
7634
7635 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7636 QETH_PROT_IPV6);
7637 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7638 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7639 card->info.unique_id;
7640
7641 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7642#else
7643 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7644 UNIQUE_ID_NOT_BY_CARD;
7645#endif
7646 return rc;
7647}
7648static void
7649qeth_print_status_with_portname(struct qeth_card *card)
7650{
7651 char dbf_text[15];
7652 int i;
7653
7654 sprintf(dbf_text, "%s", card->info.portname + 1);
7655 for (i = 0; i < 8; i++)
7656 dbf_text[i] =
7657 (char) _ebcasc[(__u8) dbf_text[i]];
7658 dbf_text[8] = 0;
7659 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7660 "with link type %s (portname: %s)\n",
7661 CARD_RDEV_ID(card),
7662 CARD_WDEV_ID(card),
7663 CARD_DDEV_ID(card),
7664 qeth_get_cardname(card),
7665 (card->info.mcl_level[0]) ? " (level: " : "",
7666 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7667 (card->info.mcl_level[0]) ? ")" : "",
7668 qeth_get_cardname_short(card),
7669 dbf_text);
7670
7671}
7672
7673static void
7674qeth_print_status_no_portname(struct qeth_card *card)
7675{
7676 if (card->info.portname[0])
7677 printk("qeth: Device %s/%s/%s is a%s "
7678 "card%s%s%s\nwith link type %s "
7679 "(no portname needed by interface).\n",
7680 CARD_RDEV_ID(card),
7681 CARD_WDEV_ID(card),
7682 CARD_DDEV_ID(card),
7683 qeth_get_cardname(card),
7684 (card->info.mcl_level[0]) ? " (level: " : "",
7685 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7686 (card->info.mcl_level[0]) ? ")" : "",
7687 qeth_get_cardname_short(card));
7688 else
7689 printk("qeth: Device %s/%s/%s is a%s "
7690 "card%s%s%s\nwith link type %s.\n",
7691 CARD_RDEV_ID(card),
7692 CARD_WDEV_ID(card),
7693 CARD_DDEV_ID(card),
7694 qeth_get_cardname(card),
7695 (card->info.mcl_level[0]) ? " (level: " : "",
7696 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7697 (card->info.mcl_level[0]) ? ")" : "",
7698 qeth_get_cardname_short(card));
7699}
7700
7701static void
7702qeth_print_status_message(struct qeth_card *card)
7703{
7704 switch (card->info.type) {
7705 case QETH_CARD_TYPE_OSAE:
7706 /* VM will use a non-zero first character
7707 * to indicate a HiperSockets like reporting
7708 * of the level OSA sets the first character to zero
7709 * */
7710 if (!card->info.mcl_level[0]) {
7711 sprintf(card->info.mcl_level,"%02x%02x",
7712 card->info.mcl_level[2],
7713 card->info.mcl_level[3]);
7714
7715 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7716 break;
7717 }
7718 /* fallthrough */
7719 case QETH_CARD_TYPE_IQD:
7720 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7721 card->info.mcl_level[0]];
7722 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7723 card->info.mcl_level[1]];
7724 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7725 card->info.mcl_level[2]];
7726 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7727 card->info.mcl_level[3]];
7728 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7729 break;
7730 default:
7731 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7732 }
7733 if (card->info.portname_required)
7734 qeth_print_status_with_portname(card);
7735 else
7736 qeth_print_status_no_portname(card);
7737}
7738
7739static int
7740qeth_register_netdev(struct qeth_card *card)
7741{
7742 QETH_DBF_TEXT(setup, 3, "regnetd");
e82b0f2c 7743 if (card->dev->reg_state != NETREG_UNINITIALIZED)
1da177e4 7744 return 0;
1da177e4
LT		 7745 /* sysfs magic */
7746 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7747 return register_netdev(card->dev);
7748}
7749
7750static void
05e08a2a 7751qeth_start_again(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7752{
7753 QETH_DBF_TEXT(setup ,2, "startag");
7754
e82b0f2c 7755 if (recovery_mode &&
500f83ab 7756 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7757 qeth_open(card->dev);
7758 } else {
7759 rtnl_lock();
7760 dev_open(card->dev);
7761 rtnl_unlock();
7762 }
1da177e4
LT		 7763 /* this also sets saved unicast addresses */
7764 qeth_set_multicast_list(card->dev);
7765}
7766
7767
7768/* Layer 2 specific stuff */
7769#define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7770 if (card->options.option == value) { \
7771 PRINT_ERR("%s not supported with layer 2 " \
7772 "functionality, ignoring option on read" \
7773 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7774 card->options.option = reset_value; \
7775 }
7776#define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7777 if (card->options.option != value) { \
7778 PRINT_ERR("%s not supported with layer 2 " \
7779 "functionality, ignoring option on read" \
7780 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7781 card->options.option = reset_value; \
7782 }
7783
7784
7785static void qeth_make_parameters_consistent(struct qeth_card *card)
7786{
7787
500f83ab
UB		 7788 if (card->options.layer2 == 0)
7789 return;
7790 if (card->info.type == QETH_CARD_TYPE_OSN)
7791 return;
7792 if (card->info.type == QETH_CARD_TYPE_IQD) {
7793 PRINT_ERR("Device %s does not support layer 2 functionality." \
7794 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7795 card->options.layer2 = 0;
7796 return;
7797 }
7798 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7799 "Routing options are");
1da177e4 7800#ifdef CONFIG_QETH_IPV6
500f83ab
UB		 7801 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7802 "Routing options are");
1da177e4 7803#endif
500f83ab
UB		 7804 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7805 QETH_CHECKSUM_DEFAULT,
7806 "Checksumming options are");
7807 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7808 QETH_TR_BROADCAST_ALLRINGS,
7809 "Broadcast mode options are");
7810 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7811 QETH_TR_MACADDR_NONCANONICAL,
7812 "Canonical MAC addr options are");
7813 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7814 "Broadcast faking options are");
7815 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7816 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7817 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
1da177e4
LT		 7818}
7819
7820
7821static int
05e08a2a 7822__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1da177e4
LT		 7823{
7824 struct qeth_card *card = gdev->dev.driver_data;
7825 int rc = 0;
7826 enum qeth_card_states recover_flag;
7827
7828 BUG_ON(!card);
7829 QETH_DBF_TEXT(setup ,2, "setonlin");
7830 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7831
7832 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7833 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7834 PRINT_WARN("set_online of card %s interrupted by user!\n",
7835 CARD_BUS_ID(card));
7836 return -ERESTARTSYS;
7837 }
7838
7839 recover_flag = card->state;
7840 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7841 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7842 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7843 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7844 return -EIO;
7845 }
7846
500f83ab 7847 qeth_make_parameters_consistent(card);
1da177e4
LT		 7848
7849 if ((rc = qeth_hardsetup_card(card))){
7850 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7851 goto out_remove;
7852 }
7853 card->state = CARD_STATE_HARDSETUP;
7854
7855 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7856 rc = qeth_get_unique_id(card);
7857
7858 if (rc && card->options.layer2 == 0) {
7859 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7860 goto out_remove;
7861 }
7862 qeth_print_status_message(card);
7863 if ((rc = qeth_register_netdev(card))){
7864 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7865 goto out_remove;
7866 }
7867 if ((rc = qeth_softsetup_card(card))){
7868 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7869 goto out_remove;
7870 }
7871 card->state = CARD_STATE_SOFTSETUP;
7872
7873 if ((rc = qeth_init_qdio_queues(card))){
7874 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7875 goto out_remove;
7876 }
4965e97f
FP		 7877 netif_carrier_on(card->dev);
7878
1da177e4
LT		 7879 qeth_set_allowed_threads(card, 0xffffffff, 0);
7880 if (recover_flag == CARD_STATE_RECOVER)
05e08a2a 7881 qeth_start_again(card, recovery_mode);
1da177e4
LT		 7882 qeth_notify_processes();
7883 return 0;
7884out_remove:
7885 card->use_hard_stop = 1;
05e08a2a 7886 qeth_stop_card(card, 0);
1da177e4
LT		 7887 ccw_device_set_offline(CARD_DDEV(card));
7888 ccw_device_set_offline(CARD_WDEV(card));
7889 ccw_device_set_offline(CARD_RDEV(card));
7890 if (recover_flag == CARD_STATE_RECOVER)
7891 card->state = CARD_STATE_RECOVER;
7892 else
7893 card->state = CARD_STATE_DOWN;
7894 return -ENODEV;
7895}
7896
05e08a2a
FP		 7897static int
7898qeth_set_online(struct ccwgroup_device *gdev)
7899{
7900 return __qeth_set_online(gdev, 0);
7901}
7902
1da177e4
LT		 7903static struct ccw_device_id qeth_ids[] = {
7904 {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7905 {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
500f83ab 7906 {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
1da177e4
LT		 7907 {},
7908};
7909MODULE_DEVICE_TABLE(ccw, qeth_ids);
7910
7911struct device *qeth_root_dev = NULL;
7912
7913struct ccwgroup_driver qeth_ccwgroup_driver = {
7914 .owner = THIS_MODULE,
7915 .name = "qeth",
7916 .driver_id = 0xD8C5E3C8,
7917 .probe = qeth_probe_device,
7918 .remove = qeth_remove_device,
7919 .set_online = qeth_set_online,
7920 .set_offline = qeth_set_offline,
7921};
7922
7923struct ccw_driver qeth_ccw_driver = {
7924 .name = "qeth",
7925 .ids = qeth_ids,
7926 .probe = ccwgroup_probe_ccwdev,
7927 .remove = ccwgroup_remove_ccwdev,
7928};
7929
7930
7931static void
7932qeth_unregister_dbf_views(void)
7933{
7934 if (qeth_dbf_setup)
7935 debug_unregister(qeth_dbf_setup);
7936 if (qeth_dbf_qerr)
7937 debug_unregister(qeth_dbf_qerr);
7938 if (qeth_dbf_sense)
7939 debug_unregister(qeth_dbf_sense);
7940 if (qeth_dbf_misc)
7941 debug_unregister(qeth_dbf_misc);
7942 if (qeth_dbf_data)
7943 debug_unregister(qeth_dbf_data);
7944 if (qeth_dbf_control)
7945 debug_unregister(qeth_dbf_control);
7946 if (qeth_dbf_trace)
7947 debug_unregister(qeth_dbf_trace);
7948}
7949static int
7950qeth_register_dbf_views(void)
7951{
7952 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
66a464db 7953 QETH_DBF_SETUP_PAGES,
1da177e4
LT		 7954 QETH_DBF_SETUP_NR_AREAS,
7955 QETH_DBF_SETUP_LEN);
7956 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
66a464db 7957 QETH_DBF_MISC_PAGES,
1da177e4
LT		 7958 QETH_DBF_MISC_NR_AREAS,
7959 QETH_DBF_MISC_LEN);
7960 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
66a464db 7961 QETH_DBF_DATA_PAGES,
1da177e4
LT		 7962 QETH_DBF_DATA_NR_AREAS,
7963 QETH_DBF_DATA_LEN);
7964 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
66a464db 7965 QETH_DBF_CONTROL_PAGES,
1da177e4
LT		 7966 QETH_DBF_CONTROL_NR_AREAS,
7967 QETH_DBF_CONTROL_LEN);
7968 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
66a464db 7969 QETH_DBF_SENSE_PAGES,
1da177e4
LT		 7970 QETH_DBF_SENSE_NR_AREAS,
7971 QETH_DBF_SENSE_LEN);
7972 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
66a464db 7973 QETH_DBF_QERR_PAGES,
1da177e4
LT		 7974 QETH_DBF_QERR_NR_AREAS,
7975 QETH_DBF_QERR_LEN);
7976 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
66a464db 7977 QETH_DBF_TRACE_PAGES,
1da177e4
LT		 7978 QETH_DBF_TRACE_NR_AREAS,
7979 QETH_DBF_TRACE_LEN);
7980
7981 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
7982 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
7983 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
7984 (qeth_dbf_trace == NULL)) {
7985 qeth_unregister_dbf_views();
7986 return -ENOMEM;
7987 }
7988 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7989 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7990
7991 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7992 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7993
7994 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7995 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7996
7997 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7998 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7999
8000 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8001 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8002
8003 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8004 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8005
8006 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8007 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8008
8009 return 0;
8010}
8011
8012#ifdef CONFIG_QETH_IPV6
8013extern struct neigh_table arp_tbl;
8014static struct neigh_ops *arp_direct_ops;
8015static int (*qeth_old_arp_constructor) (struct neighbour *);
8016
8017static struct neigh_ops arp_direct_ops_template = {
8018 .family = AF_INET,
1da177e4
LT		 8019 .solicit = NULL,
8020 .error_report = NULL,
8021 .output = dev_queue_xmit,
8022 .connected_output = dev_queue_xmit,
8023 .hh_output = dev_queue_xmit,
8024 .queue_xmit = dev_queue_xmit
8025};
8026
8027static int
8028qeth_arp_constructor(struct neighbour *neigh)
8029{
8030 struct net_device *dev = neigh->dev;
8031 struct in_device *in_dev;
8032 struct neigh_parms *parms;
8033 struct qeth_card *card;
8034
8035 card = qeth_get_card_from_dev(dev);
8036 if (card == NULL)
8037 goto out;
8038 if((card->options.layer2) ||
8039 (card->dev->hard_header == qeth_fake_header))
8040 goto out;
8041
8042 rcu_read_lock();
e5ed6399 8043 in_dev = __in_dev_get_rcu(dev);
1da177e4
LT		 8044 if (in_dev == NULL) {
8045 rcu_read_unlock();
8046 return -EINVAL;
8047 }
8048
8049 parms = in_dev->arp_parms;
8050 __neigh_parms_put(neigh->parms);
8051 neigh->parms = neigh_parms_clone(parms);
8052 rcu_read_unlock();
8053
8054 neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8055 neigh->nud_state = NUD_NOARP;
8056 neigh->ops = arp_direct_ops;
8057 neigh->output = neigh->ops->queue_xmit;
8058 return 0;
8059out:
8060 return qeth_old_arp_constructor(neigh);
8061}
8062#endif /*CONFIG_QETH_IPV6*/
8063
8064/*
8065 * IP address takeover related functions
8066 */
8067static void
8068qeth_clear_ipato_list(struct qeth_card *card)
8069{
8070 struct qeth_ipato_entry *ipatoe, *tmp;
8071 unsigned long flags;
8072
8073 spin_lock_irqsave(&card->ip_lock, flags);
8074 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8075 list_del(&ipatoe->entry);
8076 kfree(ipatoe);
8077 }
8078 spin_unlock_irqrestore(&card->ip_lock, flags);
8079}
8080
8081int
8082qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8083{
8084 struct qeth_ipato_entry *ipatoe;
8085 unsigned long flags;
8086 int rc = 0;
8087
8088 QETH_DBF_TEXT(trace, 2, "addipato");
8089 spin_lock_irqsave(&card->ip_lock, flags);
8090 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8091 if (ipatoe->proto != new->proto)
8092 continue;
8093 if (!memcmp(ipatoe->addr, new->addr,
8094 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8095 (ipatoe->mask_bits == new->mask_bits)){
8096 PRINT_WARN("ipato entry already exists!\n");
8097 rc = -EEXIST;
8098 break;
8099 }
8100 }
8101 if (!rc) {
8102 list_add_tail(&new->entry, &card->ipato.entries);
8103 }
8104 spin_unlock_irqrestore(&card->ip_lock, flags);
8105 return rc;
8106}
8107
8108void
8109qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8110 u8 *addr, int mask_bits)
8111{
8112 struct qeth_ipato_entry *ipatoe, *tmp;
8113 unsigned long flags;
8114
8115 QETH_DBF_TEXT(trace, 2, "delipato");
8116 spin_lock_irqsave(&card->ip_lock, flags);
8117 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8118 if (ipatoe->proto != proto)
8119 continue;
8120 if (!memcmp(ipatoe->addr, addr,
8121 (proto == QETH_PROT_IPV4)? 4:16) &&
8122 (ipatoe->mask_bits == mask_bits)){
8123 list_del(&ipatoe->entry);
8124 kfree(ipatoe);
8125 }
8126 }
8127 spin_unlock_irqrestore(&card->ip_lock, flags);
8128}
8129
8130static inline void
8131qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8132{
8133 int i, j;
8134 u8 octet;
8135
8136 for (i = 0; i < len; ++i){
8137 octet = addr[i];
8138 for (j = 7; j >= 0; --j){
8139 bits[i*8 + j] = octet & 1;
8140 octet >>= 1;
8141 }
8142 }
8143}
8144
8145static int
8146qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8147{
8148 struct qeth_ipato_entry *ipatoe;
8149 u8 addr_bits[128] = {0, };
8150 u8 ipatoe_bits[128] = {0, };
8151 int rc = 0;
8152
8153 if (!card->ipato.enabled)
8154 return 0;
8155
8156 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8157 (addr->proto == QETH_PROT_IPV4)? 4:16);
8158 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8159 if (addr->proto != ipatoe->proto)
8160 continue;
8161 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8162 (ipatoe->proto==QETH_PROT_IPV4) ?
8163 4:16);
8164 if (addr->proto == QETH_PROT_IPV4)
8165 rc = !memcmp(addr_bits, ipatoe_bits,
8166 min(32, ipatoe->mask_bits));
8167 else
8168 rc = !memcmp(addr_bits, ipatoe_bits,
8169 min(128, ipatoe->mask_bits));
8170 if (rc)
8171 break;
8172 }
8173 /* invert? */
8174 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8175 rc = !rc;
8176 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8177 rc = !rc;
8178
8179 return rc;
8180}
8181
8182/*
8183 * VIPA related functions
8184 */
8185int
8186qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8187 const u8 *addr)
8188{
8189 struct qeth_ipaddr *ipaddr;
8190 unsigned long flags;
8191 int rc = 0;
8192
8193 ipaddr = qeth_get_addr_buffer(proto);
8194 if (ipaddr){
8195 if (proto == QETH_PROT_IPV4){
8196 QETH_DBF_TEXT(trace, 2, "addvipa4");
8197 memcpy(&ipaddr->u.a4.addr, addr, 4);
8198 ipaddr->u.a4.mask = 0;
8199#ifdef CONFIG_QETH_IPV6
8200 } else if (proto == QETH_PROT_IPV6){
8201 QETH_DBF_TEXT(trace, 2, "addvipa6");
8202 memcpy(&ipaddr->u.a6.addr, addr, 16);
8203 ipaddr->u.a6.pfxlen = 0;
8204#endif
8205 }
8206 ipaddr->type = QETH_IP_TYPE_VIPA;
8207 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8208 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8209 } else
8210 return -ENOMEM;
8211 spin_lock_irqsave(&card->ip_lock, flags);
8212 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8213 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8214 rc = -EEXIST;
8215 spin_unlock_irqrestore(&card->ip_lock, flags);
8216 if (rc){
8217 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8218 return rc;
8219 }
8220 if (!qeth_add_ip(card, ipaddr))
8221 kfree(ipaddr);
8222 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8223 schedule_work(&card->kernel_thread_starter);
8224 return rc;
8225}
8226
8227void
8228qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8229 const u8 *addr)
8230{
8231 struct qeth_ipaddr *ipaddr;
8232
8233 ipaddr = qeth_get_addr_buffer(proto);
8234 if (ipaddr){
8235 if (proto == QETH_PROT_IPV4){
8236 QETH_DBF_TEXT(trace, 2, "delvipa4");
8237 memcpy(&ipaddr->u.a4.addr, addr, 4);
8238 ipaddr->u.a4.mask = 0;
8239#ifdef CONFIG_QETH_IPV6
8240 } else if (proto == QETH_PROT_IPV6){
8241 QETH_DBF_TEXT(trace, 2, "delvipa6");
8242 memcpy(&ipaddr->u.a6.addr, addr, 16);
8243 ipaddr->u.a6.pfxlen = 0;
8244#endif
8245 }
8246 ipaddr->type = QETH_IP_TYPE_VIPA;
8247 } else
8248 return;
8249 if (!qeth_delete_ip(card, ipaddr))
8250 kfree(ipaddr);
8251 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8252 schedule_work(&card->kernel_thread_starter);
8253}
8254
8255/*
8256 * proxy ARP related functions
8257 */
8258int
8259qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8260 const u8 *addr)
8261{
8262 struct qeth_ipaddr *ipaddr;
8263 unsigned long flags;
8264 int rc = 0;
8265
8266 ipaddr = qeth_get_addr_buffer(proto);
8267 if (ipaddr){
8268 if (proto == QETH_PROT_IPV4){
8269 QETH_DBF_TEXT(trace, 2, "addrxip4");
8270 memcpy(&ipaddr->u.a4.addr, addr, 4);
8271 ipaddr->u.a4.mask = 0;
8272#ifdef CONFIG_QETH_IPV6
8273 } else if (proto == QETH_PROT_IPV6){
8274 QETH_DBF_TEXT(trace, 2, "addrxip6");
8275 memcpy(&ipaddr->u.a6.addr, addr, 16);
8276 ipaddr->u.a6.pfxlen = 0;
8277#endif
8278 }
8279 ipaddr->type = QETH_IP_TYPE_RXIP;
8280 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8281 ipaddr->del_flags = 0;
8282 } else
8283 return -ENOMEM;
8284 spin_lock_irqsave(&card->ip_lock, flags);
8285 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8286 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8287 rc = -EEXIST;
8288 spin_unlock_irqrestore(&card->ip_lock, flags);
8289 if (rc){
8290 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8291 return rc;
8292 }
8293 if (!qeth_add_ip(card, ipaddr))
8294 kfree(ipaddr);
8295 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8296 schedule_work(&card->kernel_thread_starter);
8297 return 0;
8298}
8299
8300void
8301qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8302 const u8 *addr)
8303{
8304 struct qeth_ipaddr *ipaddr;
8305
8306 ipaddr = qeth_get_addr_buffer(proto);
8307 if (ipaddr){
8308 if (proto == QETH_PROT_IPV4){
8309 QETH_DBF_TEXT(trace, 2, "addrxip4");
8310 memcpy(&ipaddr->u.a4.addr, addr, 4);
8311 ipaddr->u.a4.mask = 0;
8312#ifdef CONFIG_QETH_IPV6
8313 } else if (proto == QETH_PROT_IPV6){
8314 QETH_DBF_TEXT(trace, 2, "addrxip6");
8315 memcpy(&ipaddr->u.a6.addr, addr, 16);
8316 ipaddr->u.a6.pfxlen = 0;
8317#endif
8318 }
8319 ipaddr->type = QETH_IP_TYPE_RXIP;
8320 } else
8321 return;
8322 if (!qeth_delete_ip(card, ipaddr))
8323 kfree(ipaddr);
8324 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8325 schedule_work(&card->kernel_thread_starter);
8326}
8327
8328/**
8329 * IP event handler
8330 */
8331static int
8332qeth_ip_event(struct notifier_block *this,
8333 unsigned long event,void *ptr)
8334{
8335 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8336 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8337 struct qeth_ipaddr *addr;
8338 struct qeth_card *card;
8339
8340 QETH_DBF_TEXT(trace,3,"ipevent");
8341 card = qeth_get_card_from_dev(dev);
8342 if (!card)
8343 return NOTIFY_DONE;
8344 if (card->options.layer2)
8345 return NOTIFY_DONE;
8346
8347 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8348 if (addr != NULL) {
8349 addr->u.a4.addr = ifa->ifa_address;
8350 addr->u.a4.mask = ifa->ifa_mask;
8351 addr->type = QETH_IP_TYPE_NORMAL;
8352 } else
8353 goto out;
8354
8355 switch(event) {
8356 case NETDEV_UP:
8357 if (!qeth_add_ip(card, addr))
8358 kfree(addr);
8359 break;
8360 case NETDEV_DOWN:
8361 if (!qeth_delete_ip(card, addr))
8362 kfree(addr);
8363 break;
8364 default:
8365 break;
8366 }
8367 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8368 schedule_work(&card->kernel_thread_starter);
8369out:
8370 return NOTIFY_DONE;
8371}
8372
8373static struct notifier_block qeth_ip_notifier = {
8374 qeth_ip_event,
8375 0
8376};
8377
8378#ifdef CONFIG_QETH_IPV6
8379/**
8380 * IPv6 event handler
8381 */
8382static int
8383qeth_ip6_event(struct notifier_block *this,
8384 unsigned long event,void *ptr)
8385{
8386
8387 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8388 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8389 struct qeth_ipaddr *addr;
8390 struct qeth_card *card;
8391
8392 QETH_DBF_TEXT(trace,3,"ip6event");
8393
8394 card = qeth_get_card_from_dev(dev);
8395 if (!card)
8396 return NOTIFY_DONE;
8397 if (!qeth_is_supported(card, IPA_IPV6))
8398 return NOTIFY_DONE;
8399
8400 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8401 if (addr != NULL) {
8402 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8403 addr->u.a6.pfxlen = ifa->prefix_len;
8404 addr->type = QETH_IP_TYPE_NORMAL;
8405 } else
8406 goto out;
8407
8408 switch(event) {
8409 case NETDEV_UP:
8410 if (!qeth_add_ip(card, addr))
8411 kfree(addr);
8412 break;
8413 case NETDEV_DOWN:
8414 if (!qeth_delete_ip(card, addr))
8415 kfree(addr);
8416 break;
8417 default:
8418 break;
8419 }
8420 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8421 schedule_work(&card->kernel_thread_starter);
8422out:
8423 return NOTIFY_DONE;
8424}
8425
8426static struct notifier_block qeth_ip6_notifier = {
8427 qeth_ip6_event,
8428 0
8429};
8430#endif
8431
8432static int
66aea23f 8433__qeth_reboot_event_card(struct device *dev, void *data)
1da177e4 8434{
1da177e4
LT		 8435 struct qeth_card *card;
8436
66aea23f
CH		 8437 card = (struct qeth_card *) dev->driver_data;
8438 qeth_clear_ip_list(card, 0, 0);
8439 qeth_qdio_clear_card(card, 0);
8440 return 0;
8441}
8442
8443static int
8444qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8445{
8446
8447 driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8448 __qeth_reboot_event_card);
1da177e4
LT		 8449 return NOTIFY_DONE;
8450}
8451
8452
8453static struct notifier_block qeth_reboot_notifier = {
8454 qeth_reboot_event,
8455 0
8456};
8457
8458static int
8459qeth_register_notifiers(void)
8460{
8461 int r;
8462
8463 QETH_DBF_TEXT(trace,5,"regnotif");
8464 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8465 return r;
8466 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8467 goto out_reboot;
8468#ifdef CONFIG_QETH_IPV6
8469 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8470 goto out_ipv4;
8471#endif
8472 return 0;
8473
8474#ifdef CONFIG_QETH_IPV6
8475out_ipv4:
8476 unregister_inetaddr_notifier(&qeth_ip_notifier);
8477#endif
8478out_reboot:
8479 unregister_reboot_notifier(&qeth_reboot_notifier);
8480 return r;
8481}
8482
8483/**
8484 * unregister all event notifiers
8485 */
8486static void
8487qeth_unregister_notifiers(void)
8488{
8489
8490 QETH_DBF_TEXT(trace,5,"unregnot");
8491 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8492 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8493#ifdef CONFIG_QETH_IPV6
8494 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8495#endif /* QETH_IPV6 */
8496
8497}
8498
8499#ifdef CONFIG_QETH_IPV6
8500static int
8501qeth_ipv6_init(void)
8502{
8503 qeth_old_arp_constructor = arp_tbl.constructor;
8504 write_lock(&arp_tbl.lock);
8505 arp_tbl.constructor = qeth_arp_constructor;
8506 write_unlock(&arp_tbl.lock);
8507
8508 arp_direct_ops = (struct neigh_ops*)
8509 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8510 if (!arp_direct_ops)
8511 return -ENOMEM;
8512
8513 memcpy(arp_direct_ops, &arp_direct_ops_template,
8514 sizeof(struct neigh_ops));
8515
8516 return 0;
8517}
8518
8519static void
8520qeth_ipv6_uninit(void)
8521{
8522 write_lock(&arp_tbl.lock);
8523 arp_tbl.constructor = qeth_old_arp_constructor;
8524 write_unlock(&arp_tbl.lock);
8525 kfree(arp_direct_ops);
8526}
8527#endif /* CONFIG_QETH_IPV6 */
8528
8529static void
8530qeth_sysfs_unregister(void)
8531{
8532 qeth_remove_driver_attributes();
8533 ccw_driver_unregister(&qeth_ccw_driver);
8534 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8535 s390_root_dev_unregister(qeth_root_dev);
8536}
8537/**
8538 * register qeth at sysfs
8539 */
8540static int
8541qeth_sysfs_register(void)
8542{
8543 int rc=0;
8544
8545 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8546 if (rc)
8547 return rc;
8548 rc = ccw_driver_register(&qeth_ccw_driver);
8549 if (rc)
8550 return rc;
8551 rc = qeth_create_driver_attributes();
8552 if (rc)
8553 return rc;
8554 qeth_root_dev = s390_root_dev_register("qeth");
8555 if (IS_ERR(qeth_root_dev)) {
8556 rc = PTR_ERR(qeth_root_dev);
8557 return rc;
8558 }
8559 return 0;
8560}
8561
8562/***
8563 * init function
8564 */
8565static int __init
8566qeth_init(void)
8567{
8568 int rc=0;
8569
e018ba1f 8570 PRINT_INFO("loading %s\n", version);
1da177e4
LT		 8571
8572 INIT_LIST_HEAD(&qeth_card_list.list);
8573 INIT_LIST_HEAD(&qeth_notify_list);
8574 spin_lock_init(&qeth_notify_lock);
8575 rwlock_init(&qeth_card_list.rwlock);
8576
8577 if (qeth_register_dbf_views())
8578 goto out_err;
8579 if (qeth_sysfs_register())
8580 goto out_sysfs;
8581
8582#ifdef CONFIG_QETH_IPV6
8583 if (qeth_ipv6_init()) {
8584 PRINT_ERR("Out of memory during ipv6 init.\n");
8585 goto out_sysfs;
8586 }
8587#endif /* QETH_IPV6 */
8588 if (qeth_register_notifiers())
8589 goto out_ipv6;
8590 if (qeth_create_procfs_entries())
8591 goto out_notifiers;
8592
8593 return rc;
8594
8595out_notifiers:
8596 qeth_unregister_notifiers();
8597out_ipv6:
8598#ifdef CONFIG_QETH_IPV6
8599 qeth_ipv6_uninit();
8600#endif /* QETH_IPV6 */
8601out_sysfs:
8602 qeth_sysfs_unregister();
8603 qeth_unregister_dbf_views();
8604out_err:
8605 PRINT_ERR("Initialization failed");
8606 return rc;
8607}
8608
8609static void
8610__exit qeth_exit(void)
8611{
8612 struct qeth_card *card, *tmp;
8613 unsigned long flags;
8614
8615 QETH_DBF_TEXT(trace,1, "cleanup.");
8616
8617 /*
8618 * Weed would not need to clean up our devices here, because the
8619 * common device layer calls qeth_remove_device for each device
8620 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8621 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8622 * qeth_remove_device called by the common device layer would otherwise
8623 * do a "hard" shutdown (card->use_hard_stop is set to one in
8624 * qeth_remove_device).
8625 */
8626again:
8627 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8628 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8629 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8630 qeth_set_offline(card->gdev);
8631 qeth_remove_device(card->gdev);
8632 goto again;
8633 }
8634 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8635#ifdef CONFIG_QETH_IPV6
8636 qeth_ipv6_uninit();
8637#endif
8638 qeth_unregister_notifiers();
8639 qeth_remove_procfs_entries();
8640 qeth_sysfs_unregister();
8641 qeth_unregister_dbf_views();
8642 printk("qeth: removed\n");
8643}
8644
500f83ab
UB		 8645EXPORT_SYMBOL(qeth_osn_register);
8646EXPORT_SYMBOL(qeth_osn_deregister);
8647EXPORT_SYMBOL(qeth_osn_assist);
1da177e4
LT		 8648module_init(qeth_init);
8649module_exit(qeth_exit);
1387780f 8650MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
1da177e4
LT		 8651MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8652 "Copyright 2000,2003 IBM Corporation\n");
8653
8654MODULE_LICENSE("GPL");
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