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[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}
[net-next-2.6.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
91ebe2a9
HC		 87static struct lock_class_key qdio_out_skb_queue_key;
88
1da177e4
LT		 89/**
90 * some more definitions and declarations
91 */
92static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
93
94/* list of our cards */
95struct qeth_card_list_struct qeth_card_list;
96/*process list want to be notified*/
97spinlock_t qeth_notify_lock;
98struct list_head qeth_notify_list;
99
100static void qeth_send_control_data_cb(struct qeth_channel *,
101 struct qeth_cmd_buffer *);
102
103/**
104 * here we go with function implementation
105 */
106static void
107qeth_init_qdio_info(struct qeth_card *card);
108
109static int
110qeth_init_qdio_queues(struct qeth_card *card);
111
112static int
113qeth_alloc_qdio_buffers(struct qeth_card *card);
114
115static void
116qeth_free_qdio_buffers(struct qeth_card *);
117
118static void
119qeth_clear_qdio_buffers(struct qeth_card *);
120
121static void
122qeth_clear_ip_list(struct qeth_card *, int, int);
123
124static void
125qeth_clear_ipacmd_list(struct qeth_card *);
126
127static int
128qeth_qdio_clear_card(struct qeth_card *, int);
129
130static void
131qeth_clear_working_pool_list(struct qeth_card *);
132
133static void
134qeth_clear_cmd_buffers(struct qeth_channel *);
135
136static int
137qeth_stop(struct net_device *);
138
139static void
140qeth_clear_ipato_list(struct qeth_card *);
141
142static int
143qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
144
145static void
146qeth_irq_tasklet(unsigned long);
147
148static int
149qeth_set_online(struct ccwgroup_device *);
150
05e08a2a
FP		 151static int
152__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
153
1da177e4
LT		 154static struct qeth_ipaddr *
155qeth_get_addr_buffer(enum qeth_prot_versions);
156
157static void
158qeth_set_multicast_list(struct net_device *);
159
6c951b90
FP		 160static void
161qeth_setadp_promisc_mode(struct qeth_card *);
162
1da177e4
LT		 163static void
164qeth_notify_processes(void)
165{
166 /*notify all registered processes */
167 struct qeth_notify_list_struct *n_entry;
168
169 QETH_DBF_TEXT(trace,3,"procnoti");
170 spin_lock(&qeth_notify_lock);
171 list_for_each_entry(n_entry, &qeth_notify_list, list) {
172 send_sig(n_entry->signum, n_entry->task, 1);
173 }
174 spin_unlock(&qeth_notify_lock);
175
176}
177int
178qeth_notifier_unregister(struct task_struct *p)
179{
180 struct qeth_notify_list_struct *n_entry, *tmp;
181
182 QETH_DBF_TEXT(trace, 2, "notunreg");
183 spin_lock(&qeth_notify_lock);
184 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
185 if (n_entry->task == p) {
186 list_del(&n_entry->list);
187 kfree(n_entry);
188 goto out;
189 }
190 }
191out:
192 spin_unlock(&qeth_notify_lock);
193 return 0;
194}
195int
196qeth_notifier_register(struct task_struct *p, int signum)
197{
198 struct qeth_notify_list_struct *n_entry;
199
1da177e4
LT		 200 /*check first if entry already exists*/
201 spin_lock(&qeth_notify_lock);
202 list_for_each_entry(n_entry, &qeth_notify_list, list) {
203 if (n_entry->task == p) {
204 n_entry->signum = signum;
205 spin_unlock(&qeth_notify_lock);
206 return 0;
207 }
208 }
209 spin_unlock(&qeth_notify_lock);
210
211 n_entry = (struct qeth_notify_list_struct *)
212 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
213 if (!n_entry)
214 return -ENOMEM;
215 n_entry->task = p;
216 n_entry->signum = signum;
217 spin_lock(&qeth_notify_lock);
218 list_add(&n_entry->list,&qeth_notify_list);
219 spin_unlock(&qeth_notify_lock);
220 return 0;
221}
222
223
224/**
225 * free channel command buffers
226 */
227static void
228qeth_clean_channel(struct qeth_channel *channel)
229{
230 int cnt;
231
232 QETH_DBF_TEXT(setup, 2, "freech");
233 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
234 kfree(channel->iob[cnt].data);
235}
236
237/**
238 * free card
239 */
240static void
241qeth_free_card(struct qeth_card *card)
242{
243
244 QETH_DBF_TEXT(setup, 2, "freecrd");
245 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
246 qeth_clean_channel(&card->read);
247 qeth_clean_channel(&card->write);
248 if (card->dev)
249 free_netdev(card->dev);
250 qeth_clear_ip_list(card, 0, 0);
251 qeth_clear_ipato_list(card);
252 kfree(card->ip_tbd_list);
253 qeth_free_qdio_buffers(card);
254 kfree(card);
255}
256
257/**
258 * alloc memory for command buffer per channel
259 */
260static int
261qeth_setup_channel(struct qeth_channel *channel)
262{
263 int cnt;
264
265 QETH_DBF_TEXT(setup, 2, "setupch");
266 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
267 channel->iob[cnt].data = (char *)
268 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
269 if (channel->iob[cnt].data == NULL)
270 break;
271 channel->iob[cnt].state = BUF_STATE_FREE;
272 channel->iob[cnt].channel = channel;
273 channel->iob[cnt].callback = qeth_send_control_data_cb;
274 channel->iob[cnt].rc = 0;
275 }
276 if (cnt < QETH_CMD_BUFFER_NO) {
277 while (cnt-- > 0)
278 kfree(channel->iob[cnt].data);
279 return -ENOMEM;
280 }
281 channel->buf_no = 0;
282 channel->io_buf_no = 0;
283 atomic_set(&channel->irq_pending, 0);
284 spin_lock_init(&channel->iob_lock);
285
286 init_waitqueue_head(&channel->wait_q);
287 channel->irq_tasklet.data = (unsigned long) channel;
288 channel->irq_tasklet.func = qeth_irq_tasklet;
289 return 0;
290}
291
292/**
293 * alloc memory for card structure
294 */
295static struct qeth_card *
296qeth_alloc_card(void)
297{
298 struct qeth_card *card;
299
300 QETH_DBF_TEXT(setup, 2, "alloccrd");
88abaab4 301 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1da177e4
LT		 302 if (!card)
303 return NULL;
304 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1da177e4
LT		 305 if (qeth_setup_channel(&card->read)) {
306 kfree(card);
307 return NULL;
308 }
309 if (qeth_setup_channel(&card->write)) {
310 qeth_clean_channel(&card->read);
311 kfree(card);
312 return NULL;
313 }
314 return card;
315}
316
317static long
318__qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
319{
320 if (!IS_ERR(irb))
321 return 0;
322
323 switch (PTR_ERR(irb)) {
324 case -EIO:
325 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
326 QETH_DBF_TEXT(trace, 2, "ckirberr");
327 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
328 break;
329 case -ETIMEDOUT:
330 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
331 QETH_DBF_TEXT(trace, 2, "ckirberr");
332 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
333 break;
334 default:
335 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
336 cdev->dev.bus_id);
337 QETH_DBF_TEXT(trace, 2, "ckirberr");
338 QETH_DBF_TEXT(trace, 2, " rc???");
339 }
340 return PTR_ERR(irb);
341}
342
343static int
344qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
345{
346 int dstat,cstat;
347 char *sense;
348
349 sense = (char *) irb->ecw;
350 cstat = irb->scsw.cstat;
351 dstat = irb->scsw.dstat;
352
353 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
354 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
355 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
356 QETH_DBF_TEXT(trace,2, "CGENCHK");
357 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
358 cdev->dev.bus_id, dstat, cstat);
359 HEXDUMP16(WARN, "irb: ", irb);
360 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
361 return 1;
362 }
363
364 if (dstat & DEV_STAT_UNIT_CHECK) {
365 if (sense[SENSE_RESETTING_EVENT_BYTE] &
366 SENSE_RESETTING_EVENT_FLAG) {
367 QETH_DBF_TEXT(trace,2,"REVIND");
368 return 1;
369 }
370 if (sense[SENSE_COMMAND_REJECT_BYTE] &
371 SENSE_COMMAND_REJECT_FLAG) {
372 QETH_DBF_TEXT(trace,2,"CMDREJi");
373 return 0;
374 }
375 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
376 QETH_DBF_TEXT(trace,2,"AFFE");
377 return 1;
378 }
379 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
380 QETH_DBF_TEXT(trace,2,"ZEROSEN");
381 return 0;
382 }
383 QETH_DBF_TEXT(trace,2,"DGENCHK");
384 return 1;
385 }
386 return 0;
387}
388static int qeth_issue_next_read(struct qeth_card *);
389
390/**
391 * interrupt handler
392 */
393static void
394qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
395{
396 int rc;
397 int cstat,dstat;
398 struct qeth_cmd_buffer *buffer;
399 struct qeth_channel *channel;
400 struct qeth_card *card;
401
402 QETH_DBF_TEXT(trace,5,"irq");
403
404 if (__qeth_check_irb_error(cdev, irb))
405 return;
406 cstat = irb->scsw.cstat;
407 dstat = irb->scsw.dstat;
408
409 card = CARD_FROM_CDEV(cdev);
410 if (!card)
411 return;
412
413 if (card->read.ccwdev == cdev){
414 channel = &card->read;
415 QETH_DBF_TEXT(trace,5,"read");
416 } else if (card->write.ccwdev == cdev) {
417 channel = &card->write;
418 QETH_DBF_TEXT(trace,5,"write");
419 } else {
420 channel = &card->data;
421 QETH_DBF_TEXT(trace,5,"data");
422 }
423 atomic_set(&channel->irq_pending, 0);
424
425 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
426 channel->state = CH_STATE_STOPPED;
427
428 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
429 channel->state = CH_STATE_HALTED;
430
431 /*let's wake up immediately on data channel*/
432 if ((channel == &card->data) && (intparm != 0))
433 goto out;
434
435 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
436 QETH_DBF_TEXT(trace, 6, "clrchpar");
437 /* we don't have to handle this further */
438 intparm = 0;
439 }
440 if (intparm == QETH_HALT_CHANNEL_PARM) {
441 QETH_DBF_TEXT(trace, 6, "hltchpar");
442 /* we don't have to handle this further */
443 intparm = 0;
444 }
445 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
446 (dstat & DEV_STAT_UNIT_CHECK) ||
447 (cstat)) {
448 if (irb->esw.esw0.erw.cons) {
449 /* TODO: we should make this s390dbf */
450 PRINT_WARN("sense data available on channel %s.\n",
451 CHANNEL_ID(channel));
452 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
453 HEXDUMP16(WARN,"irb: ",irb);
454 HEXDUMP16(WARN,"sense data: ",irb->ecw);
455 }
456 rc = qeth_get_problem(cdev,irb);
457 if (rc) {
458 qeth_schedule_recovery(card);
459 goto out;
460 }
461 }
462
463 if (intparm) {
464 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
465 buffer->state = BUF_STATE_PROCESSED;
466 }
467 if (channel == &card->data)
468 return;
469
470 if (channel == &card->read &&
471 channel->state == CH_STATE_UP)
472 qeth_issue_next_read(card);
473
ee2db684 474 qeth_irq_tasklet((unsigned long)channel);
1da177e4
LT		 475 return;
476out:
477 wake_up(&card->wait_q);
478}
479
480/**
481 * tasklet function scheduled from irq handler
482 */
483static void
484qeth_irq_tasklet(unsigned long data)
485{
486 struct qeth_card *card;
487 struct qeth_channel *channel;
488 struct qeth_cmd_buffer *iob;
489 __u8 index;
490
491 QETH_DBF_TEXT(trace,5,"irqtlet");
492 channel = (struct qeth_channel *) data;
493 iob = channel->iob;
494 index = channel->buf_no;
495 card = CARD_FROM_CDEV(channel->ccwdev);
496 while (iob[index].state == BUF_STATE_PROCESSED) {
497 if (iob[index].callback !=NULL) {
498 iob[index].callback(channel,iob + index);
499 }
500 index = (index + 1) % QETH_CMD_BUFFER_NO;
501 }
502 channel->buf_no = index;
503 wake_up(&card->wait_q);
504}
505
05e08a2a 506static int qeth_stop_card(struct qeth_card *, int);
1da177e4
LT		 507
508static int
05e08a2a 509__qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
1da177e4
LT		 510{
511 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
9123e0d7 512 int rc = 0, rc2 = 0, rc3 = 0;
1da177e4
LT		 513 enum qeth_card_states recover_flag;
514
515 QETH_DBF_TEXT(setup, 3, "setoffl");
516 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
e82b0f2c 517
66cc5d5a
FP		 518 if (card->dev && netif_carrier_ok(card->dev))
519 netif_carrier_off(card->dev);
1da177e4 520 recover_flag = card->state;
05e08a2a 521 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
1da177e4
LT		 522 PRINT_WARN("Stopping card %s interrupted by user!\n",
523 CARD_BUS_ID(card));
524 return -ERESTARTSYS;
525 }
9123e0d7
UB		 526 rc = ccw_device_set_offline(CARD_DDEV(card));
527 rc2 = ccw_device_set_offline(CARD_WDEV(card));
528 rc3 = ccw_device_set_offline(CARD_RDEV(card));
529 if (!rc)
530 rc = (rc2) ? rc2 : rc3;
531 if (rc)
1da177e4 532 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1da177e4
LT		 533 if (recover_flag == CARD_STATE_UP)
534 card->state = CARD_STATE_RECOVER;
535 qeth_notify_processes();
536 return 0;
537}
538
05e08a2a
FP		 539static int
540qeth_set_offline(struct ccwgroup_device *cgdev)
541{
542 return __qeth_set_offline(cgdev, 0);
543}
544
1da177e4
LT		 545static int
546qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
547
548
549static void
550qeth_remove_device(struct ccwgroup_device *cgdev)
551{
552 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
553 unsigned long flags;
554
555 QETH_DBF_TEXT(setup, 3, "rmdev");
556 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
557
558 if (!card)
559 return;
560
561 if (qeth_wait_for_threads(card, 0xffffffff))
562 return;
563
564 if (cgdev->state == CCWGROUP_ONLINE){
565 card->use_hard_stop = 1;
566 qeth_set_offline(cgdev);
567 }
568 /* remove form our internal list */
569 write_lock_irqsave(&qeth_card_list.rwlock, flags);
570 list_del(&card->list);
571 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
572 if (card->dev)
573 unregister_netdev(card->dev);
574 qeth_remove_device_attributes(&cgdev->dev);
575 qeth_free_card(card);
576 cgdev->dev.driver_data = NULL;
577 put_device(&cgdev->dev);
578}
579
580static int
581qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
582static int
583qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
584
585/**
586 * Add/remove address to/from card's ip list, i.e. try to add or remove
587 * reference to/from an IP address that is already registered on the card.
588 * Returns:
589 * 0 address was on card and its reference count has been adjusted,
590 * but is still > 0, so nothing has to be done
591 * also returns 0 if card was not on card and the todo was to delete
592 * the address -> there is also nothing to be done
593 * 1 address was not on card and the todo is to add it to the card's ip
594 * list
595 * -1 address was on card and its reference count has been decremented
596 * to <= 0 by the todo -> address must be removed from card
597 */
598static int
599__qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
600 struct qeth_ipaddr **__addr)
601{
602 struct qeth_ipaddr *addr;
603 int found = 0;
604
605 list_for_each_entry(addr, &card->ip_list, entry) {
6c88ad2d
FP		 606 if (card->options.layer2) {
607 if ((addr->type == todo->type) &&
e82b0f2c 608 (memcmp(&addr->mac, &todo->mac,
6c88ad2d
FP		 609 OSA_ADDR_LEN) == 0)) {
610 found = 1;
611 break;
612 }
613 continue;
e82b0f2c 614 }
1da177e4
LT		 615 if ((addr->proto == QETH_PROT_IPV4) &&
616 (todo->proto == QETH_PROT_IPV4) &&
617 (addr->type == todo->type) &&
618 (addr->u.a4.addr == todo->u.a4.addr) &&
6c88ad2d 619 (addr->u.a4.mask == todo->u.a4.mask)) {
1da177e4
LT		 620 found = 1;
621 break;
622 }
623 if ((addr->proto == QETH_PROT_IPV6) &&
624 (todo->proto == QETH_PROT_IPV6) &&
625 (addr->type == todo->type) &&
626 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
627 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
6c88ad2d 628 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 629 found = 1;
630 break;
631 }
632 }
6c88ad2d 633 if (found) {
1da177e4
LT		 634 addr->users += todo->users;
635 if (addr->users <= 0){
636 *__addr = addr;
637 return -1;
638 } else {
639 /* for VIPA and RXIP limit refcount to 1 */
640 if (addr->type != QETH_IP_TYPE_NORMAL)
641 addr->users = 1;
642 return 0;
643 }
644 }
6c88ad2d 645 if (todo->users > 0) {
1da177e4
LT		 646 /* for VIPA and RXIP limit refcount to 1 */
647 if (todo->type != QETH_IP_TYPE_NORMAL)
648 todo->users = 1;
649 return 1;
650 } else
651 return 0;
652}
653
4d284cac 654static int
1da177e4
LT		 655__qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
656 int same_type)
657{
658 struct qeth_ipaddr *tmp;
659
660 list_for_each_entry(tmp, list, entry) {
661 if ((tmp->proto == QETH_PROT_IPV4) &&
662 (addr->proto == QETH_PROT_IPV4) &&
663 ((same_type && (tmp->type == addr->type)) ||
664 (!same_type && (tmp->type != addr->type)) ) &&
665 (tmp->u.a4.addr == addr->u.a4.addr) ){
666 return 1;
667 }
668 if ((tmp->proto == QETH_PROT_IPV6) &&
669 (addr->proto == QETH_PROT_IPV6) &&
670 ((same_type && (tmp->type == addr->type)) ||
671 (!same_type && (tmp->type != addr->type)) ) &&
672 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
673 sizeof(struct in6_addr)) == 0) ) {
674 return 1;
675 }
676 }
677 return 0;
678}
679
680/*
681 * Add IP to be added to todo list. If there is already an "add todo"
682 * in this list we just incremenent the reference count.
683 * Returns 0 if we just incremented reference count.
684 */
685static int
686__qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
687{
688 struct qeth_ipaddr *tmp, *t;
689 int found = 0;
690
691 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
692 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
693 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
694 return 0;
6c88ad2d
FP		 695 if (card->options.layer2) {
696 if ((tmp->type == addr->type) &&
697 (tmp->is_multicast == addr->is_multicast) &&
e82b0f2c 698 (memcmp(&tmp->mac, &addr->mac,
6c88ad2d
FP		 699 OSA_ADDR_LEN) == 0)) {
700 found = 1;
701 break;
702 }
703 continue;
e82b0f2c 704 }
1da177e4
LT		 705 if ((tmp->proto == QETH_PROT_IPV4) &&
706 (addr->proto == QETH_PROT_IPV4) &&
707 (tmp->type == addr->type) &&
708 (tmp->is_multicast == addr->is_multicast) &&
709 (tmp->u.a4.addr == addr->u.a4.addr) &&
6c88ad2d 710 (tmp->u.a4.mask == addr->u.a4.mask)) {
1da177e4
LT		 711 found = 1;
712 break;
713 }
714 if ((tmp->proto == QETH_PROT_IPV6) &&
715 (addr->proto == QETH_PROT_IPV6) &&
716 (tmp->type == addr->type) &&
717 (tmp->is_multicast == addr->is_multicast) &&
718 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
719 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
6c88ad2d 720 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 721 found = 1;
722 break;
723 }
724 }
725 if (found){
726 if (addr->users != 0)
727 tmp->users += addr->users;
728 else
729 tmp->users += add? 1:-1;
6c88ad2d 730 if (tmp->users == 0) {
1da177e4
LT		 731 list_del(&tmp->entry);
732 kfree(tmp);
733 }
734 return 0;
735 } else {
736 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
737 list_add(&addr->entry, card->ip_tbd_list);
738 else {
739 if (addr->users == 0)
740 addr->users += add? 1:-1;
741 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
742 qeth_is_addr_covered_by_ipato(card, addr)){
743 QETH_DBF_TEXT(trace, 2, "tkovaddr");
744 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
745 }
746 list_add_tail(&addr->entry, card->ip_tbd_list);
747 }
748 return 1;
749 }
750}
751
752/**
753 * Remove IP address from list
754 */
755static int
756qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
757{
758 unsigned long flags;
759 int rc = 0;
760
6c88ad2d
FP		 761 QETH_DBF_TEXT(trace, 4, "delip");
762
763 if (card->options.layer2)
764 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
765 else if (addr->proto == QETH_PROT_IPV4)
766 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 767 else {
6c88ad2d
FP		 768 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
769 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 770 }
771 spin_lock_irqsave(&card->ip_lock, flags);
772 rc = __qeth_insert_ip_todo(card, addr, 0);
773 spin_unlock_irqrestore(&card->ip_lock, flags);
774 return rc;
775}
776
777static int
778qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
779{
780 unsigned long flags;
781 int rc = 0;
782
6c88ad2d
FP		 783 QETH_DBF_TEXT(trace, 4, "addip");
784 if (card->options.layer2)
785 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
786 else if (addr->proto == QETH_PROT_IPV4)
787 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 788 else {
6c88ad2d
FP		 789 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
790 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 791 }
792 spin_lock_irqsave(&card->ip_lock, flags);
793 rc = __qeth_insert_ip_todo(card, addr, 1);
794 spin_unlock_irqrestore(&card->ip_lock, flags);
795 return rc;
796}
797
4d284cac 798static void
1da177e4
LT		 799__qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
800{
801 struct qeth_ipaddr *addr, *tmp;
802 int rc;
d805d7c6 803again:
1da177e4
LT		 804 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
805 if (addr->is_multicast) {
806 spin_unlock_irqrestore(&card->ip_lock, *flags);
807 rc = qeth_deregister_addr_entry(card, addr);
808 spin_lock_irqsave(&card->ip_lock, *flags);
809 if (!rc) {
810 list_del(&addr->entry);
811 kfree(addr);
d805d7c6 812 goto again;
1da177e4
LT		 813 }
814 }
815 }
816}
817
818static void
819qeth_set_ip_addr_list(struct qeth_card *card)
820{
821 struct list_head *tbd_list;
822 struct qeth_ipaddr *todo, *addr;
823 unsigned long flags;
824 int rc;
825
826 QETH_DBF_TEXT(trace, 2, "sdiplist");
827 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
828
829 spin_lock_irqsave(&card->ip_lock, flags);
830 tbd_list = card->ip_tbd_list;
831 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
832 if (!card->ip_tbd_list) {
833 QETH_DBF_TEXT(trace, 0, "silnomem");
834 card->ip_tbd_list = tbd_list;
835 spin_unlock_irqrestore(&card->ip_lock, flags);
836 return;
837 } else
838 INIT_LIST_HEAD(card->ip_tbd_list);
839
840 while (!list_empty(tbd_list)){
841 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
842 list_del(&todo->entry);
843 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
844 __qeth_delete_all_mc(card, &flags);
845 kfree(todo);
846 continue;
847 }
848 rc = __qeth_ref_ip_on_card(card, todo, &addr);
849 if (rc == 0) {
850 /* nothing to be done; only adjusted refcount */
851 kfree(todo);
852 } else if (rc == 1) {
853 /* new entry to be added to on-card list */
854 spin_unlock_irqrestore(&card->ip_lock, flags);
855 rc = qeth_register_addr_entry(card, todo);
856 spin_lock_irqsave(&card->ip_lock, flags);
857 if (!rc)
858 list_add_tail(&todo->entry, &card->ip_list);
859 else
860 kfree(todo);
861 } else if (rc == -1) {
862 /* on-card entry to be removed */
863 list_del_init(&addr->entry);
864 spin_unlock_irqrestore(&card->ip_lock, flags);
865 rc = qeth_deregister_addr_entry(card, addr);
866 spin_lock_irqsave(&card->ip_lock, flags);
867 if (!rc)
868 kfree(addr);
869 else
870 list_add_tail(&addr->entry, &card->ip_list);
871 kfree(todo);
872 }
873 }
874 spin_unlock_irqrestore(&card->ip_lock, flags);
875 kfree(tbd_list);
876}
877
878static void qeth_delete_mc_addresses(struct qeth_card *);
879static void qeth_add_multicast_ipv4(struct qeth_card *);
6c88ad2d 880static void qeth_layer2_add_multicast(struct qeth_card *);
1da177e4
LT		 881#ifdef CONFIG_QETH_IPV6
882static void qeth_add_multicast_ipv6(struct qeth_card *);
883#endif
884
4d284cac 885static int
1da177e4
LT		 886qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
887{
888 unsigned long flags;
889
890 spin_lock_irqsave(&card->thread_mask_lock, flags);
891 if ( !(card->thread_allowed_mask & thread) ||
892 (card->thread_start_mask & thread) ) {
893 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
894 return -EPERM;
895 }
896 card->thread_start_mask |= thread;
897 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
898 return 0;
899}
900
901static void
902qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
903{
904 unsigned long flags;
905
906 spin_lock_irqsave(&card->thread_mask_lock, flags);
907 card->thread_start_mask &= ~thread;
908 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
909 wake_up(&card->wait_q);
910}
911
912static void
913qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
914{
915 unsigned long flags;
916
917 spin_lock_irqsave(&card->thread_mask_lock, flags);
918 card->thread_running_mask &= ~thread;
919 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
920 wake_up(&card->wait_q);
921}
922
4d284cac 923static int
1da177e4
LT		 924__qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
925{
926 unsigned long flags;
927 int rc = 0;
928
929 spin_lock_irqsave(&card->thread_mask_lock, flags);
930 if (card->thread_start_mask & thread){
931 if ((card->thread_allowed_mask & thread) &&
932 !(card->thread_running_mask & thread)){
933 rc = 1;
934 card->thread_start_mask &= ~thread;
935 card->thread_running_mask |= thread;
936 } else
937 rc = -EPERM;
938 }
939 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
940 return rc;
941}
942
943static int
944qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
945{
946 int rc = 0;
947
948 wait_event(card->wait_q,
949 (rc = __qeth_do_run_thread(card, thread)) >= 0);
950 return rc;
951}
952
1da177e4
LT		 953static int
954qeth_recover(void *ptr)
955{
956 struct qeth_card *card;
957 int rc = 0;
958
959 card = (struct qeth_card *) ptr;
960 daemonize("qeth_recover");
961 QETH_DBF_TEXT(trace,2,"recover1");
962 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
963 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
964 return 0;
965 QETH_DBF_TEXT(trace,2,"recover2");
966 PRINT_WARN("Recovery of device %s started ...\n",
967 CARD_BUS_ID(card));
968 card->use_hard_stop = 1;
05e08a2a
FP		 969 __qeth_set_offline(card->gdev,1);
970 rc = __qeth_set_online(card->gdev,1);
1da177e4
LT		 971 if (!rc)
972 PRINT_INFO("Device %s successfully recovered!\n",
973 CARD_BUS_ID(card));
974 else
975 PRINT_INFO("Device %s could not be recovered!\n",
976 CARD_BUS_ID(card));
977 /* don't run another scheduled recovery */
978 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
979 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
980 return 0;
981}
982
983void
984qeth_schedule_recovery(struct qeth_card *card)
985{
986 QETH_DBF_TEXT(trace,2,"startrec");
1da177e4
LT		 987 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
988 schedule_work(&card->kernel_thread_starter);
989}
990
991static int
992qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
993{
994 unsigned long flags;
995 int rc = 0;
996
997 spin_lock_irqsave(&card->thread_mask_lock, flags);
998 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
999 (u8) card->thread_start_mask,
1000 (u8) card->thread_allowed_mask,
1001 (u8) card->thread_running_mask);
1002 rc = (card->thread_start_mask & thread);
1003 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1004 return rc;
1005}
1006
1007static void
4927b3f7 1008qeth_start_kernel_thread(struct work_struct *work)
1da177e4 1009{
4927b3f7 1010 struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1da177e4
LT		 1011 QETH_DBF_TEXT(trace , 2, "strthrd");
1012
1013 if (card->read.state != CH_STATE_UP &&
1014 card->write.state != CH_STATE_UP)
1015 return;
1da177e4
LT		 1016 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1017 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1018}
1019
1020
1021static void
1022qeth_set_intial_options(struct qeth_card *card)
1023{
1024 card->options.route4.type = NO_ROUTER;
1025#ifdef CONFIG_QETH_IPV6
1026 card->options.route6.type = NO_ROUTER;
1027#endif /* QETH_IPV6 */
1028 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1029 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1030 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1031 card->options.fake_broadcast = 0;
1032 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1033 card->options.fake_ll = 0;
500f83ab
UB		 1034 if (card->info.type == QETH_CARD_TYPE_OSN)
1035 card->options.layer2 = 1;
1036 else
1037 card->options.layer2 = 0;
95c78c8b 1038 card->options.performance_stats = 0;
1da177e4
LT		 1039}
1040
1041/**
1042 * initialize channels ,card and all state machines
1043 */
1044static int
1045qeth_setup_card(struct qeth_card *card)
1046{
1047
1048 QETH_DBF_TEXT(setup, 2, "setupcrd");
1049 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1050
1051 card->read.state = CH_STATE_DOWN;
1052 card->write.state = CH_STATE_DOWN;
1053 card->data.state = CH_STATE_DOWN;
1054 card->state = CARD_STATE_DOWN;
1055 card->lan_online = 0;
1056 card->use_hard_stop = 0;
1057 card->dev = NULL;
1058#ifdef CONFIG_QETH_VLAN
1059 spin_lock_init(&card->vlanlock);
1060 card->vlangrp = NULL;
1061#endif
9123e0d7 1062 spin_lock_init(&card->lock);
1da177e4
LT		 1063 spin_lock_init(&card->ip_lock);
1064 spin_lock_init(&card->thread_mask_lock);
1065 card->thread_start_mask = 0;
1066 card->thread_allowed_mask = 0;
1067 card->thread_running_mask = 0;
4927b3f7 1068 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1da177e4
LT		 1069 INIT_LIST_HEAD(&card->ip_list);
1070 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1071 if (!card->ip_tbd_list) {
1072 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1073 return -ENOMEM;
1074 }
1075 INIT_LIST_HEAD(card->ip_tbd_list);
1076 INIT_LIST_HEAD(&card->cmd_waiter_list);
1077 init_waitqueue_head(&card->wait_q);
1078 /* intial options */
1079 qeth_set_intial_options(card);
1080 /* IP address takeover */
1081 INIT_LIST_HEAD(&card->ipato.entries);
1082 card->ipato.enabled = 0;
1083 card->ipato.invert4 = 0;
1084 card->ipato.invert6 = 0;
1085 /* init QDIO stuff */
1086 qeth_init_qdio_info(card);
1087 return 0;
1088}
1089
1090static int
1091is_1920_device (struct qeth_card *card)
1092{
1093 int single_queue = 0;
1094 struct ccw_device *ccwdev;
1095 struct channelPath_dsc {
1096 u8 flags;
1097 u8 lsn;
1098 u8 desc;
1099 u8 chpid;
1100 u8 swla;
1101 u8 zeroes;
1102 u8 chla;
1103 u8 chpp;
1104 } *chp_dsc;
1105
1106 QETH_DBF_TEXT(setup, 2, "chk_1920");
1107
1108 ccwdev = card->data.ccwdev;
1109 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1110 if (chp_dsc != NULL) {
1111 /* CHPP field bit 6 == 1 -> single queue */
1112 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1113 kfree(chp_dsc);
1114 }
1115 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1116 return single_queue;
1117}
1118
1119static int
1120qeth_determine_card_type(struct qeth_card *card)
1121{
1122 int i = 0;
1123
1124 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1125
500f83ab
UB		 1126 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1127 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1da177e4
LT		 1128 while (known_devices[i][4]) {
1129 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1130 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1131 card->info.type = known_devices[i][4];
500f83ab
UB		 1132 card->qdio.no_out_queues = known_devices[i][8];
1133 card->info.is_multicast_different = known_devices[i][9];
1da177e4
LT		 1134 if (is_1920_device(card)) {
1135 PRINT_INFO("Priority Queueing not able "
1136 "due to hardware limitations!\n");
1137 card->qdio.no_out_queues = 1;
1138 card->qdio.default_out_queue = 0;
e82b0f2c 1139 }
1da177e4
LT		 1140 return 0;
1141 }
1142 i++;
1143 }
1144 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1145 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1146 return -ENOENT;
1147}
1148
1149static int
1150qeth_probe_device(struct ccwgroup_device *gdev)
1151{
1152 struct qeth_card *card;
1153 struct device *dev;
1154 unsigned long flags;
1155 int rc;
1156
1157 QETH_DBF_TEXT(setup, 2, "probedev");
1158
1159 dev = &gdev->dev;
1160 if (!get_device(dev))
1161 return -ENODEV;
1162
500f83ab 1163 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
e82b0f2c 1164
1da177e4
LT		 1165 card = qeth_alloc_card();
1166 if (!card) {
1167 put_device(dev);
1168 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1169 return -ENOMEM;
1170 }
1171 card->read.ccwdev = gdev->cdev[0];
1172 card->write.ccwdev = gdev->cdev[1];
1173 card->data.ccwdev = gdev->cdev[2];
1da177e4
LT		 1174 gdev->dev.driver_data = card;
1175 card->gdev = gdev;
1176 gdev->cdev[0]->handler = qeth_irq;
1177 gdev->cdev[1]->handler = qeth_irq;
1178 gdev->cdev[2]->handler = qeth_irq;
1179
500f83ab
UB		 1180 if ((rc = qeth_determine_card_type(card))){
1181 PRINT_WARN("%s: not a valid card type\n", __func__);
1182 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1183 put_device(dev);
1184 qeth_free_card(card);
1185 return rc;
e82b0f2c 1186 }
500f83ab
UB		 1187 if ((rc = qeth_setup_card(card))){
1188 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1da177e4
LT		 1189 put_device(dev);
1190 qeth_free_card(card);
1191 return rc;
1192 }
500f83ab
UB		 1193 rc = qeth_create_device_attributes(dev);
1194 if (rc) {
1da177e4
LT		 1195 put_device(dev);
1196 qeth_free_card(card);
1197 return rc;
1198 }
1199 /* insert into our internal list */
1200 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1201 list_add_tail(&card->list, &qeth_card_list.list);
1202 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1203 return rc;
1204}
1205
1206
1207static int
1208qeth_get_unitaddr(struct qeth_card *card)
1209{
1210 int length;
1211 char *prcd;
1212 int rc;
1213
1214 QETH_DBF_TEXT(setup, 2, "getunit");
1215 rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1216 if (rc) {
1217 PRINT_ERR("read_conf_data for device %s returned %i\n",
1218 CARD_DDEV_ID(card), rc);
1219 return rc;
1220 }
1221 card->info.chpid = prcd[30];
1222 card->info.unit_addr2 = prcd[31];
1223 card->info.cula = prcd[63];
1224 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1225 (prcd[0x11] == _ascebc['M']));
1226 return 0;
1227}
1228
1229static void
1230qeth_init_tokens(struct qeth_card *card)
1231{
1232 card->token.issuer_rm_w = 0x00010103UL;
1233 card->token.cm_filter_w = 0x00010108UL;
1234 card->token.cm_connection_w = 0x0001010aUL;
1235 card->token.ulp_filter_w = 0x0001010bUL;
1236 card->token.ulp_connection_w = 0x0001010dUL;
1237}
1238
1239static inline __u16
1240raw_devno_from_bus_id(char *id)
1241{
1242 id += (strlen(id) - 4);
1243 return (__u16) simple_strtoul(id, &id, 16);
1244}
1245/**
1246 * setup channel
1247 */
1248static void
1249qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1250{
1251 struct qeth_card *card;
1252
1253 QETH_DBF_TEXT(trace, 4, "setupccw");
1254 card = CARD_FROM_CDEV(channel->ccwdev);
1255 if (channel == &card->read)
1256 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1257 else
1258 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1259 channel->ccw.count = len;
1260 channel->ccw.cda = (__u32) __pa(iob);
1261}
1262
1263/**
1264 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1265 */
1266static struct qeth_cmd_buffer *
1267__qeth_get_buffer(struct qeth_channel *channel)
1268{
1269 __u8 index;
1270
1271 QETH_DBF_TEXT(trace, 6, "getbuff");
1272 index = channel->io_buf_no;
1273 do {
1274 if (channel->iob[index].state == BUF_STATE_FREE) {
1275 channel->iob[index].state = BUF_STATE_LOCKED;
1276 channel->io_buf_no = (channel->io_buf_no + 1) %
1277 QETH_CMD_BUFFER_NO;
1278 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1279 return channel->iob + index;
1280 }
1281 index = (index + 1) % QETH_CMD_BUFFER_NO;
1282 } while(index != channel->io_buf_no);
1283
1284 return NULL;
1285}
1286
1287/**
1288 * release command buffer
1289 */
1290static void
1291qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1292{
1293 unsigned long flags;
1294
1295 QETH_DBF_TEXT(trace, 6, "relbuff");
1296 spin_lock_irqsave(&channel->iob_lock, flags);
1297 memset(iob->data, 0, QETH_BUFSIZE);
1298 iob->state = BUF_STATE_FREE;
1299 iob->callback = qeth_send_control_data_cb;
1300 iob->rc = 0;
1301 spin_unlock_irqrestore(&channel->iob_lock, flags);
1302}
1303
1304static struct qeth_cmd_buffer *
1305qeth_get_buffer(struct qeth_channel *channel)
1306{
1307 struct qeth_cmd_buffer *buffer = NULL;
1308 unsigned long flags;
1309
1310 spin_lock_irqsave(&channel->iob_lock, flags);
1311 buffer = __qeth_get_buffer(channel);
1312 spin_unlock_irqrestore(&channel->iob_lock, flags);
1313 return buffer;
1314}
1315
1316static struct qeth_cmd_buffer *
1317qeth_wait_for_buffer(struct qeth_channel *channel)
1318{
1319 struct qeth_cmd_buffer *buffer;
1320 wait_event(channel->wait_q,
1321 ((buffer = qeth_get_buffer(channel)) != NULL));
1322 return buffer;
1323}
1324
1325static void
1326qeth_clear_cmd_buffers(struct qeth_channel *channel)
1327{
1380fee2 1328 int cnt;
1da177e4
LT		 1329
1330 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1331 qeth_release_buffer(channel,&channel->iob[cnt]);
1332 channel->buf_no = 0;
1333 channel->io_buf_no = 0;
1334}
1335
1336/**
1337 * start IDX for read and write channel
1338 */
1339static int
1340qeth_idx_activate_get_answer(struct qeth_channel *channel,
1341 void (*idx_reply_cb)(struct qeth_channel *,
1342 struct qeth_cmd_buffer *))
1343{
1344 struct qeth_cmd_buffer *iob;
1345 unsigned long flags;
1346 int rc;
1347 struct qeth_card *card;
1348
1349 QETH_DBF_TEXT(setup, 2, "idxanswr");
1350 card = CARD_FROM_CDEV(channel->ccwdev);
1351 iob = qeth_get_buffer(channel);
1352 iob->callback = idx_reply_cb;
1353 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1354 channel->ccw.count = QETH_BUFSIZE;
1355 channel->ccw.cda = (__u32) __pa(iob->data);
1356
1357 wait_event(card->wait_q,
973bd993 1358 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1da177e4
LT		 1359 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1360 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1361 rc = ccw_device_start(channel->ccwdev,
1362 &channel->ccw,(addr_t) iob, 0, 0);
1363 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1364
1365 if (rc) {
1366 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1367 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1368 atomic_set(&channel->irq_pending, 0);
1369 wake_up(&card->wait_q);
1370 return rc;
1371 }
1372 rc = wait_event_interruptible_timeout(card->wait_q,
1373 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1374 if (rc == -ERESTARTSYS)
1375 return rc;
1376 if (channel->state != CH_STATE_UP){
1377 rc = -ETIME;
1378 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1379 qeth_clear_cmd_buffers(channel);
1380 } else
1381 rc = 0;
1382 return rc;
1383}
1384
1385static int
1386qeth_idx_activate_channel(struct qeth_channel *channel,
1387 void (*idx_reply_cb)(struct qeth_channel *,
1388 struct qeth_cmd_buffer *))
1389{
1390 struct qeth_card *card;
1391 struct qeth_cmd_buffer *iob;
1392 unsigned long flags;
1393 __u16 temp;
1394 int rc;
1395
1396 card = CARD_FROM_CDEV(channel->ccwdev);
1397
1398 QETH_DBF_TEXT(setup, 2, "idxactch");
1399
1400 iob = qeth_get_buffer(channel);
1401 iob->callback = idx_reply_cb;
1402 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1403 channel->ccw.count = IDX_ACTIVATE_SIZE;
1404 channel->ccw.cda = (__u32) __pa(iob->data);
1405 if (channel == &card->write) {
1406 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1407 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1408 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1409 card->seqno.trans_hdr++;
1410 } else {
1411 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1412 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1413 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1414 }
1415 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1416 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1417 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1418 &card->info.func_level,sizeof(__u16));
1419 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1420 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1421 temp = (card->info.cula << 8) + card->info.unit_addr2;
1422 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1423
1424 wait_event(card->wait_q,
973bd993 1425 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1da177e4
LT		 1426 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1427 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1428 rc = ccw_device_start(channel->ccwdev,
1429 &channel->ccw,(addr_t) iob, 0, 0);
1430 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1431
1432 if (rc) {
1433 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1434 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1435 atomic_set(&channel->irq_pending, 0);
1436 wake_up(&card->wait_q);
1437 return rc;
1438 }
1439 rc = wait_event_interruptible_timeout(card->wait_q,
1440 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1441 if (rc == -ERESTARTSYS)
1442 return rc;
1443 if (channel->state != CH_STATE_ACTIVATING) {
1444 PRINT_WARN("qeth: IDX activate timed out!\n");
1445 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1446 qeth_clear_cmd_buffers(channel);
1447 return -ETIME;
1448 }
1449 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1450}
1451
1452static int
1453qeth_peer_func_level(int level)
1454{
1455 if ((level & 0xff) == 8)
1456 return (level & 0xff) + 0x400;
1457 if (((level >> 8) & 3) == 1)
1458 return (level & 0xff) + 0x200;
1459 return level;
1460}
1461
1462static void
1463qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1464{
1465 struct qeth_card *card;
1466 __u16 temp;
1467
1468 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1469
1470 if (channel->state == CH_STATE_DOWN) {
1471 channel->state = CH_STATE_ACTIVATING;
1472 goto out;
1473 }
1474 card = CARD_FROM_CDEV(channel->ccwdev);
1475
1476 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1477 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1478 "reply\n", CARD_WDEV_ID(card));
1479 goto out;
1480 }
1481 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1482 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1483 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1484 "function level mismatch "
1485 "(sent: 0x%x, received: 0x%x)\n",
1486 CARD_WDEV_ID(card), card->info.func_level, temp);
1487 goto out;
1488 }
1489 channel->state = CH_STATE_UP;
1490out:
1491 qeth_release_buffer(channel, iob);
1492}
1493
1494static int
1495qeth_check_idx_response(unsigned char *buffer)
1496{
1497 if (!buffer)
1498 return 0;
1499
1500 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1501 if ((buffer[2] & 0xc0) == 0xc0) {
1502 PRINT_WARN("received an IDX TERMINATE "
1503 "with cause code 0x%02x%s\n",
1504 buffer[4],
1505 ((buffer[4] == 0x22) ?
1506 " -- try another portname" : ""));
1507 QETH_DBF_TEXT(trace, 2, "ckidxres");
1508 QETH_DBF_TEXT(trace, 2, " idxterm");
1509 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1510 return -EIO;
1511 }
1512 return 0;
1513}
1514
1515static void
1516qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1517{
1518 struct qeth_card *card;
1519 __u16 temp;
1520
1521 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1522 if (channel->state == CH_STATE_DOWN) {
1523 channel->state = CH_STATE_ACTIVATING;
1524 goto out;
1525 }
1526
1527 card = CARD_FROM_CDEV(channel->ccwdev);
1528 if (qeth_check_idx_response(iob->data)) {
1529 goto out;
1530 }
1531 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1532 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1533 "reply\n", CARD_RDEV_ID(card));
1534 goto out;
1535 }
1536
1537/**
1538 * temporary fix for microcode bug
1539 * to revert it,replace OR by AND
1540 */
1541 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1542 (card->info.type == QETH_CARD_TYPE_OSAE) )
1543 card->info.portname_required = 1;
1544
1545 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1546 if (temp != qeth_peer_func_level(card->info.func_level)) {
1547 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1548 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1549 CARD_RDEV_ID(card), card->info.func_level, temp);
1550 goto out;
1551 }
1552 memcpy(&card->token.issuer_rm_r,
1553 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1554 QETH_MPC_TOKEN_LENGTH);
1555 memcpy(&card->info.mcl_level[0],
1556 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1557 channel->state = CH_STATE_UP;
1558out:
1559 qeth_release_buffer(channel,iob);
1560}
1561
1562static int
1563qeth_issue_next_read(struct qeth_card *card)
1564{
1565 int rc;
1566 struct qeth_cmd_buffer *iob;
1567
1568 QETH_DBF_TEXT(trace,5,"issnxrd");
1569 if (card->read.state != CH_STATE_UP)
1570 return -EIO;
1571 iob = qeth_get_buffer(&card->read);
1572 if (!iob) {
1573 PRINT_WARN("issue_next_read failed: no iob available!\n");
1574 return -ENOMEM;
1575 }
1576 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1da177e4
LT		 1577 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1578 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1579 (addr_t) iob, 0, 0);
1580 if (rc) {
1581 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1582 atomic_set(&card->read.irq_pending, 0);
1583 qeth_schedule_recovery(card);
1584 wake_up(&card->wait_q);
1585 }
1586 return rc;
1587}
1588
1589static struct qeth_reply *
1590qeth_alloc_reply(struct qeth_card *card)
1591{
1592 struct qeth_reply *reply;
1593
88abaab4 1594 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1da177e4 1595 if (reply){
1da177e4 1596 atomic_set(&reply->refcnt, 1);
ee2db684 1597 atomic_set(&reply->received, 0);
1da177e4
LT		 1598 reply->card = card;
1599 };
1600 return reply;
1601}
1602
1603static void
1604qeth_get_reply(struct qeth_reply *reply)
1605{
1606 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1607 atomic_inc(&reply->refcnt);
1608}
1609
1610static void
1611qeth_put_reply(struct qeth_reply *reply)
1612{
1613 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1614 if (atomic_dec_and_test(&reply->refcnt))
1615 kfree(reply);
1616}
1617
1da177e4
LT		 1618static struct qeth_ipa_cmd *
1619qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1620{
1621 struct qeth_ipa_cmd *cmd = NULL;
1622
1623 QETH_DBF_TEXT(trace,5,"chkipad");
1624 if (IS_IPA(iob->data)){
1625 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1626 if (IS_IPA_REPLY(cmd))
1627 return cmd;
1628 else {
1629 switch (cmd->hdr.command) {
1630 case IPA_CMD_STOPLAN:
1631 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1632 "there is a network problem or "
1633 "someone pulled the cable or "
1634 "disabled the port.\n",
1635 QETH_CARD_IFNAME(card),
1636 card->info.chpid);
1637 card->lan_online = 0;
66cc5d5a
FP		 1638 if (card->dev && netif_carrier_ok(card->dev))
1639 netif_carrier_off(card->dev);
1da177e4
LT		 1640 return NULL;
1641 case IPA_CMD_STARTLAN:
1642 PRINT_INFO("Link reestablished on %s "
1643 "(CHPID 0x%X). Scheduling "
1644 "IP address reset.\n",
1645 QETH_CARD_IFNAME(card),
1646 card->info.chpid);
330b6369 1647 netif_carrier_on(card->dev);
9123e0d7 1648 qeth_schedule_recovery(card);
1da177e4 1649 return NULL;
500f83ab
UB		 1650 case IPA_CMD_MODCCID:
1651 return cmd;
1da177e4
LT		 1652 case IPA_CMD_REGISTER_LOCAL_ADDR:
1653 QETH_DBF_TEXT(trace,3, "irla");
1654 break;
1655 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1656 QETH_DBF_TEXT(trace,3, "urla");
1657 break;
1658 default:
1659 PRINT_WARN("Received data is IPA "
1660 "but not a reply!\n");
1661 break;
1662 }
1663 }
1664 }
1665 return cmd;
1666}
1667
1668/**
1669 * wake all waiting ipa commands
1670 */
1671static void
1672qeth_clear_ipacmd_list(struct qeth_card *card)
1673{
1674 struct qeth_reply *reply, *r;
1675 unsigned long flags;
1676
1677 QETH_DBF_TEXT(trace, 4, "clipalst");
1678
1679 spin_lock_irqsave(&card->lock, flags);
1680 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1681 qeth_get_reply(reply);
1682 reply->rc = -EIO;
ee2db684 1683 atomic_inc(&reply->received);
1da177e4
LT		 1684 list_del_init(&reply->list);
1685 wake_up(&reply->wait_q);
1686 qeth_put_reply(reply);
1687 }
1688 spin_unlock_irqrestore(&card->lock, flags);
1689}
1690
1691static void
1692qeth_send_control_data_cb(struct qeth_channel *channel,
1693 struct qeth_cmd_buffer *iob)
1694{
1695 struct qeth_card *card;
1696 struct qeth_reply *reply, *r;
1697 struct qeth_ipa_cmd *cmd;
1698 unsigned long flags;
1699 int keep_reply;
1700
1701 QETH_DBF_TEXT(trace,4,"sndctlcb");
1702
1703 card = CARD_FROM_CDEV(channel->ccwdev);
1704 if (qeth_check_idx_response(iob->data)) {
1705 qeth_clear_ipacmd_list(card);
1706 qeth_schedule_recovery(card);
1707 goto out;
1708 }
1709
1710 cmd = qeth_check_ipa_data(card, iob);
1711 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1712 goto out;
500f83ab
UB		 1713 /*in case of OSN : check if cmd is set */
1714 if (card->info.type == QETH_CARD_TYPE_OSN &&
1715 cmd &&
1716 cmd->hdr.command != IPA_CMD_STARTLAN &&
1717 card->osn_info.assist_cb != NULL) {
1718 card->osn_info.assist_cb(card->dev, cmd);
1719 goto out;
1720 }
1da177e4
LT		 1721
1722 spin_lock_irqsave(&card->lock, flags);
1723 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1724 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1725 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1726 qeth_get_reply(reply);
1727 list_del_init(&reply->list);
1728 spin_unlock_irqrestore(&card->lock, flags);
1729 keep_reply = 0;
1730 if (reply->callback != NULL) {
1731 if (cmd) {
1732 reply->offset = (__u16)((char*)cmd -
1733 (char *)iob->data);
1734 keep_reply = reply->callback(card,
1735 reply,
1736 (unsigned long)cmd);
500f83ab 1737 } else
1da177e4
LT		 1738 keep_reply = reply->callback(card,
1739 reply,
1740 (unsigned long)iob);
1741 }
1742 if (cmd)
1743 reply->rc = (u16) cmd->hdr.return_code;
1744 else if (iob->rc)
1745 reply->rc = iob->rc;
1746 if (keep_reply) {
1747 spin_lock_irqsave(&card->lock, flags);
1748 list_add_tail(&reply->list,
1749 &card->cmd_waiter_list);
1750 spin_unlock_irqrestore(&card->lock, flags);
1751 } else {
ee2db684 1752 atomic_inc(&reply->received);
1da177e4
LT		 1753 wake_up(&reply->wait_q);
1754 }
1755 qeth_put_reply(reply);
1756 goto out;
1757 }
1758 }
1759 spin_unlock_irqrestore(&card->lock, flags);
1760out:
1761 memcpy(&card->seqno.pdu_hdr_ack,
1762 QETH_PDU_HEADER_SEQ_NO(iob->data),
1763 QETH_SEQ_NO_LENGTH);
1764 qeth_release_buffer(channel,iob);
1765}
1766
4d284cac 1767static void
500f83ab 1768qeth_prepare_control_data(struct qeth_card *card, int len,
4d284cac 1769 struct qeth_cmd_buffer *iob)
500f83ab
UB		 1770{
1771 qeth_setup_ccw(&card->write,iob->data,len);
1772 iob->callback = qeth_release_buffer;
1773
1774 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1775 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1776 card->seqno.trans_hdr++;
1777 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1778 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1779 card->seqno.pdu_hdr++;
1780 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1781 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1782 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1783}
e82b0f2c 1784
1da177e4
LT		 1785static int
1786qeth_send_control_data(struct qeth_card *card, int len,
1787 struct qeth_cmd_buffer *iob,
1788 int (*reply_cb)
1789 (struct qeth_card *, struct qeth_reply*, unsigned long),
1790 void *reply_param)
1791
1792{
1793 int rc;
1794 unsigned long flags;
500f83ab 1795 struct qeth_reply *reply = NULL;
ee2db684 1796 unsigned long timeout;
1da177e4
LT		 1797
1798 QETH_DBF_TEXT(trace, 2, "sendctl");
1799
1da177e4
LT		 1800 reply = qeth_alloc_reply(card);
1801 if (!reply) {
1802 PRINT_WARN("Could no alloc qeth_reply!\n");
1803 return -ENOMEM;
1804 }
1805 reply->callback = reply_cb;
1806 reply->param = reply_param;
1807 if (card->state == CARD_STATE_DOWN)
1808 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1809 else
1810 reply->seqno = card->seqno.ipa++;
1da177e4
LT		 1811 init_waitqueue_head(&reply->wait_q);
1812 spin_lock_irqsave(&card->lock, flags);
1813 list_add_tail(&reply->list, &card->cmd_waiter_list);
1814 spin_unlock_irqrestore(&card->lock, flags);
1815 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
ee2db684
FB		 1816
1817 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
500f83ab 1818 qeth_prepare_control_data(card, len, iob);
ee2db684 1819
500f83ab 1820 if (IS_IPA(iob->data))
ee2db684 1821 timeout = jiffies + QETH_IPA_TIMEOUT;
500f83ab 1822 else
ee2db684
FB		 1823 timeout = jiffies + QETH_TIMEOUT;
1824
1da177e4
LT		 1825 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1826 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1827 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1828 (addr_t) iob, 0, 0);
1829 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1830 if (rc){
1831 PRINT_WARN("qeth_send_control_data: "
1832 "ccw_device_start rc = %i\n", rc);
1833 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1834 spin_lock_irqsave(&card->lock, flags);
1835 list_del_init(&reply->list);
1836 qeth_put_reply(reply);
1837 spin_unlock_irqrestore(&card->lock, flags);
1838 qeth_release_buffer(iob->channel, iob);
1839 atomic_set(&card->write.irq_pending, 0);
1840 wake_up(&card->wait_q);
1841 return rc;
1842 }
ee2db684
FB		 1843 while (!atomic_read(&reply->received)) {
1844 if (time_after(jiffies, timeout)) {
1845 spin_lock_irqsave(&reply->card->lock, flags);
1846 list_del_init(&reply->list);
1847 spin_unlock_irqrestore(&reply->card->lock, flags);
1848 reply->rc = -ETIME;
1849 atomic_inc(&reply->received);
1850 wake_up(&reply->wait_q);
1851 }
1852 };
1da177e4
LT		 1853 rc = reply->rc;
1854 qeth_put_reply(reply);
1855 return rc;
1856}
1857
500f83ab
UB		 1858static int
1859qeth_osn_send_control_data(struct qeth_card *card, int len,
1860 struct qeth_cmd_buffer *iob)
1861{
1862 unsigned long flags;
1863 int rc = 0;
1864
1865 QETH_DBF_TEXT(trace, 5, "osndctrd");
1866
1867 wait_event(card->wait_q,
973bd993 1868 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
500f83ab
UB		 1869 qeth_prepare_control_data(card, len, iob);
1870 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1871 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1872 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1873 (addr_t) iob, 0, 0);
1874 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1875 if (rc){
1876 PRINT_WARN("qeth_osn_send_control_data: "
1877 "ccw_device_start rc = %i\n", rc);
1878 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1879 qeth_release_buffer(iob->channel, iob);
1880 atomic_set(&card->write.irq_pending, 0);
1881 wake_up(&card->wait_q);
1882 }
1883 return rc;
e82b0f2c 1884}
500f83ab
UB		 1885
1886static inline void
1887qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1888 char prot_type)
1889{
1890 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1891 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1892 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1893 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1894}
1895
1896static int
1897qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1898 int data_len)
1899{
1900 u16 s1, s2;
1901
4965e97f 1902 QETH_DBF_TEXT(trace,4,"osndipa");
500f83ab
UB		 1903
1904 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1905 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1906 s2 = (u16)data_len;
1907 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1908 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1909 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1910 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1911 return qeth_osn_send_control_data(card, s1, iob);
1912}
e82b0f2c 1913
1da177e4
LT		 1914static int
1915qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1916 int (*reply_cb)
1917 (struct qeth_card *,struct qeth_reply*, unsigned long),
1918 void *reply_param)
1919{
1920 int rc;
1921 char prot_type;
1922
1923 QETH_DBF_TEXT(trace,4,"sendipa");
1924
1da177e4 1925 if (card->options.layer2)
500f83ab
UB		 1926 if (card->info.type == QETH_CARD_TYPE_OSN)
1927 prot_type = QETH_PROT_OSN2;
1928 else
1929 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 1930 else
1931 prot_type = QETH_PROT_TCPIP;
500f83ab 1932 qeth_prepare_ipa_cmd(card,iob,prot_type);
1da177e4
LT		 1933 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1934 reply_cb, reply_param);
1935 return rc;
1936}
1937
1938
1939static int
1940qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1941 unsigned long data)
1942{
1943 struct qeth_cmd_buffer *iob;
1944
1945 QETH_DBF_TEXT(setup, 2, "cmenblcb");
1946
1947 iob = (struct qeth_cmd_buffer *) data;
1948 memcpy(&card->token.cm_filter_r,
1949 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1950 QETH_MPC_TOKEN_LENGTH);
1951 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
1952 return 0;
1953}
1954
1955static int
1956qeth_cm_enable(struct qeth_card *card)
1957{
1958 int rc;
1959 struct qeth_cmd_buffer *iob;
1960
1961 QETH_DBF_TEXT(setup,2,"cmenable");
1962
1963 iob = qeth_wait_for_buffer(&card->write);
1964 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1965 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1966 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1967 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1968 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1969
1970 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1971 qeth_cm_enable_cb, NULL);
1972 return rc;
1973}
1974
1975static int
1976qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1977 unsigned long data)
1978{
1979
1980 struct qeth_cmd_buffer *iob;
1981
1982 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1983
1984 iob = (struct qeth_cmd_buffer *) data;
1985 memcpy(&card->token.cm_connection_r,
1986 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1987 QETH_MPC_TOKEN_LENGTH);
1988 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
1989 return 0;
1990}
1991
1992static int
1993qeth_cm_setup(struct qeth_card *card)
1994{
1995 int rc;
1996 struct qeth_cmd_buffer *iob;
1997
1998 QETH_DBF_TEXT(setup,2,"cmsetup");
1999
2000 iob = qeth_wait_for_buffer(&card->write);
2001 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2002 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2003 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2004 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2005 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2006 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2007 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2008 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2009 qeth_cm_setup_cb, NULL);
2010 return rc;
2011
2012}
2013
2014static int
2015qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2016 unsigned long data)
2017{
2018
2019 __u16 mtu, framesize;
2020 __u16 len;
2021 __u8 link_type;
2022 struct qeth_cmd_buffer *iob;
2023
2024 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2025
2026 iob = (struct qeth_cmd_buffer *) data;
2027 memcpy(&card->token.ulp_filter_r,
2028 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2029 QETH_MPC_TOKEN_LENGTH);
2030 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2031 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2032 mtu = qeth_get_mtu_outof_framesize(framesize);
2033 if (!mtu) {
2034 iob->rc = -EINVAL;
2035 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2036 return 0;
2037 }
2038 card->info.max_mtu = mtu;
2039 card->info.initial_mtu = mtu;
2040 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2041 } else {
2042 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2043 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2044 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2045 }
2046
2047 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2048 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2049 memcpy(&link_type,
2050 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2051 card->info.link_type = link_type;
2052 } else
2053 card->info.link_type = 0;
2054 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2055 return 0;
2056}
2057
2058static int
2059qeth_ulp_enable(struct qeth_card *card)
2060{
2061 int rc;
2062 char prot_type;
2063 struct qeth_cmd_buffer *iob;
2064
2065 /*FIXME: trace view callbacks*/
2066 QETH_DBF_TEXT(setup,2,"ulpenabl");
2067
2068 iob = qeth_wait_for_buffer(&card->write);
2069 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2070
2071 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2072 (__u8) card->info.portno;
2073 if (card->options.layer2)
500f83ab
UB		 2074 if (card->info.type == QETH_CARD_TYPE_OSN)
2075 prot_type = QETH_PROT_OSN2;
2076 else
2077 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 2078 else
2079 prot_type = QETH_PROT_TCPIP;
2080
2081 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2082 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2083 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2084 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2085 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2086 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2087 card->info.portname, 9);
2088 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2089 qeth_ulp_enable_cb, NULL);
2090 return rc;
2091
2092}
2093
2094static inline __u16
2095__raw_devno_from_bus_id(char *id)
2096{
2097 id += (strlen(id) - 4);
2098 return (__u16) simple_strtoul(id, &id, 16);
2099}
2100
2101static int
2102qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2103 unsigned long data)
2104{
2105 struct qeth_cmd_buffer *iob;
2106
2107 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2108
2109 iob = (struct qeth_cmd_buffer *) data;
2110 memcpy(&card->token.ulp_connection_r,
2111 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2112 QETH_MPC_TOKEN_LENGTH);
2113 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2114 return 0;
2115}
2116
2117static int
2118qeth_ulp_setup(struct qeth_card *card)
2119{
2120 int rc;
2121 __u16 temp;
2122 struct qeth_cmd_buffer *iob;
2123
2124 QETH_DBF_TEXT(setup,2,"ulpsetup");
2125
2126 iob = qeth_wait_for_buffer(&card->write);
2127 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2128
2129 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2130 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2131 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2132 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2133 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2134 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2135
2136 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2137 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2138 temp = (card->info.cula << 8) + card->info.unit_addr2;
2139 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2140 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2141 qeth_ulp_setup_cb, NULL);
2142 return rc;
2143}
2144
2145static inline int
6c6b3e7c
FP		 2146qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2147 unsigned int siga_error, const char *dbftext)
1da177e4 2148{
1da177e4 2149 if (qdio_error || siga_error) {
6c6b3e7c
FP		 2150 QETH_DBF_TEXT(trace, 2, dbftext);
2151 QETH_DBF_TEXT(qerr, 2, dbftext);
1da177e4 2152 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
6c6b3e7c 2153 buf->element[15].flags & 0xff);
1da177e4 2154 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
6c6b3e7c 2155 buf->element[14].flags & 0xff);
1da177e4
LT		 2156 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2157 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
6c6b3e7c 2158 return 1;
1da177e4 2159 }
6c6b3e7c 2160 return 0;
1da177e4
LT		 2161}
2162
4d284cac 2163static struct sk_buff *
500f83ab 2164qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
1da177e4
LT		 2165{
2166 struct sk_buff* skb;
500f83ab
UB		 2167 int add_len;
2168
2169 add_len = 0;
2170 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2171 add_len = sizeof(struct qeth_hdr);
1da177e4 2172#ifdef CONFIG_QETH_VLAN
500f83ab
UB		 2173 else
2174 add_len = VLAN_HLEN;
1da177e4 2175#endif
500f83ab
UB		 2176 skb = dev_alloc_skb(length + add_len);
2177 if (skb && add_len)
2178 skb_reserve(skb, add_len);
1da177e4
LT		 2179 return skb;
2180}
2181
4d284cac 2182static struct sk_buff *
1da177e4
LT		 2183qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2184 struct qdio_buffer_element **__element, int *__offset,
2185 struct qeth_hdr **hdr)
2186{
2187 struct qdio_buffer_element *element = *__element;
2188 int offset = *__offset;
2189 struct sk_buff *skb = NULL;
2190 int skb_len;
2191 void *data_ptr;
2192 int data_len;
2193
2194 QETH_DBF_TEXT(trace,6,"nextskb");
2195 /* qeth_hdr must not cross element boundaries */
2196 if (element->length < offset + sizeof(struct qeth_hdr)){
2197 if (qeth_is_last_sbale(element))
2198 return NULL;
2199 element++;
2200 offset = 0;
2201 if (element->length < sizeof(struct qeth_hdr))
2202 return NULL;
2203 }
2204 *hdr = element->addr + offset;
2205
2206 offset += sizeof(struct qeth_hdr);
2207 if (card->options.layer2)
500f83ab
UB		 2208 if (card->info.type == QETH_CARD_TYPE_OSN)
2209 skb_len = (*hdr)->hdr.osn.pdu_length;
2210 else
2211 skb_len = (*hdr)->hdr.l2.pkt_length;
1da177e4
LT		 2212 else
2213 skb_len = (*hdr)->hdr.l3.length;
2214
2215 if (!skb_len)
2216 return NULL;
2217 if (card->options.fake_ll){
e23dd9cd 2218 if(card->dev->type == ARPHRD_IEEE802_TR){
500f83ab 2219 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
e23dd9cd
FP		 2220 goto no_mem;
2221 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2222 } else {
500f83ab 2223 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
e23dd9cd
FP		 2224 goto no_mem;
2225 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2226 }
500f83ab 2227 } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
1da177e4
LT		 2228 goto no_mem;
2229 data_ptr = element->addr + offset;
2230 while (skb_len) {
2231 data_len = min(skb_len, (int)(element->length - offset));
2232 if (data_len)
2233 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2234 skb_len -= data_len;
2235 if (skb_len){
2236 if (qeth_is_last_sbale(element)){
2237 QETH_DBF_TEXT(trace,4,"unexeob");
2238 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2239 QETH_DBF_TEXT(qerr,2,"unexeob");
2240 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2241 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2242 dev_kfree_skb_any(skb);
2243 card->stats.rx_errors++;
2244 return NULL;
2245 }
2246 element++;
2247 offset = 0;
2248 data_ptr = element->addr;
2249 } else {
2250 offset += data_len;
2251 }
2252 }
2253 *__element = element;
2254 *__offset = offset;
2255 return skb;
2256no_mem:
2257 if (net_ratelimit()){
2258 PRINT_WARN("No memory for packet received on %s.\n",
2259 QETH_CARD_IFNAME(card));
2260 QETH_DBF_TEXT(trace,2,"noskbmem");
2261 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2262 }
2263 card->stats.rx_dropped++;
2264 return NULL;
2265}
2266
4d284cac 2267static __be16
1da177e4
LT		 2268qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2269{
2270 struct qeth_card *card;
2271 struct ethhdr *eth;
2272
2273 QETH_DBF_TEXT(trace,6,"typtrans");
2274
2275 card = (struct qeth_card *)dev->priv;
2276#ifdef CONFIG_TR
2277 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2278 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2279 return tr_type_trans(skb,dev);
2280#endif /* CONFIG_TR */
459a98ed 2281 skb_reset_mac_header(skb);
1da177e4
LT		 2282 skb_pull(skb, ETH_HLEN );
2283 eth = eth_hdr(skb);
2284
2285 if (*eth->h_dest & 1) {
2286 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2287 skb->pkt_type = PACKET_BROADCAST;
2288 else
2289 skb->pkt_type = PACKET_MULTICAST;
2290 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2291 skb->pkt_type = PACKET_OTHERHOST;
2292
2293 if (ntohs(eth->h_proto) >= 1536)
2294 return eth->h_proto;
2295 if (*(unsigned short *) (skb->data) == 0xFFFF)
2296 return htons(ETH_P_802_3);
2297 return htons(ETH_P_802_2);
2298}
2299
4d284cac 2300static void
e23dd9cd
FP		 2301qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2302 struct qeth_hdr *hdr)
2303{
2304 struct trh_hdr *fake_hdr;
2305 struct trllc *fake_llc;
2306 struct iphdr *ip_hdr;
2307
2308 QETH_DBF_TEXT(trace,5,"skbfktr");
48d49d0c 2309 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_TR);
e23dd9cd 2310 /* this is a fake ethernet header */
c1a4b86e 2311 fake_hdr = tr_hdr(skb);
e23dd9cd
FP		 2312
2313 /* the destination MAC address */
2314 switch (skb->pkt_type){
2315 case PACKET_MULTICAST:
2316 switch (skb->protocol){
2317#ifdef CONFIG_QETH_IPV6
2318 case __constant_htons(ETH_P_IPV6):
2319 ndisc_mc_map((struct in6_addr *)
2320 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2321 fake_hdr->daddr, card->dev, 0);
2322 break;
2323#endif /* CONFIG_QETH_IPV6 */
2324 case __constant_htons(ETH_P_IP):
2325 ip_hdr = (struct iphdr *)skb->data;
2326 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2327 break;
2328 default:
2329 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2330 }
2331 break;
2332 case PACKET_BROADCAST:
2333 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2334 break;
2335 default:
2336 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2337 }
2338 /* the source MAC address */
2339 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2340 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2341 else
2342 memset(fake_hdr->saddr, 0, TR_ALEN);
2343 fake_hdr->rcf=0;
2344 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2345 fake_llc->dsap = EXTENDED_SAP;
2346 fake_llc->ssap = EXTENDED_SAP;
2347 fake_llc->llc = UI_CMD;
2348 fake_llc->protid[0] = 0;
2349 fake_llc->protid[1] = 0;
2350 fake_llc->protid[2] = 0;
2351 fake_llc->ethertype = ETH_P_IP;
2352}
2353
4d284cac 2354static void
e23dd9cd 2355qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
1da177e4
LT		 2356 struct qeth_hdr *hdr)
2357{
2358 struct ethhdr *fake_hdr;
2359 struct iphdr *ip_hdr;
2360
e23dd9cd 2361 QETH_DBF_TEXT(trace,5,"skbfketh");
48d49d0c 2362 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
1da177e4 2363 /* this is a fake ethernet header */
4839fcce 2364 fake_hdr = eth_hdr(skb);
1da177e4
LT		 2365
2366 /* the destination MAC address */
2367 switch (skb->pkt_type){
2368 case PACKET_MULTICAST:
2369 switch (skb->protocol){
2370#ifdef CONFIG_QETH_IPV6
2371 case __constant_htons(ETH_P_IPV6):
2372 ndisc_mc_map((struct in6_addr *)
2373 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2374 fake_hdr->h_dest, card->dev, 0);
2375 break;
2376#endif /* CONFIG_QETH_IPV6 */
2377 case __constant_htons(ETH_P_IP):
2378 ip_hdr = (struct iphdr *)skb->data;
e23dd9cd 2379 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
1da177e4
LT		 2380 break;
2381 default:
2382 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2383 }
2384 break;
2385 case PACKET_BROADCAST:
2386 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2387 break;
2388 default:
2389 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2390 }
2391 /* the source MAC address */
2392 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2393 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2394 else
2395 memset(fake_hdr->h_source, 0, ETH_ALEN);
2396 /* the protocol */
2397 fake_hdr->h_proto = skb->protocol;
2398}
2399
e23dd9cd
FP		 2400static inline void
2401qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2402 struct qeth_hdr *hdr)
2403{
2404 if (card->dev->type == ARPHRD_IEEE802_TR)
2405 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2406 else
2407 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2408}
2409
95c78c8b 2410static inline void
1da177e4
LT		 2411qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2412 struct qeth_hdr *hdr)
2413{
1da177e4
LT		 2414 skb->pkt_type = PACKET_HOST;
2415 skb->protocol = qeth_type_trans(skb, skb->dev);
2416 if (card->options.checksum_type == NO_CHECKSUMMING)
2417 skb->ip_summed = CHECKSUM_UNNECESSARY;
2418 else
2419 skb->ip_summed = CHECKSUM_NONE;
9123e0d7 2420 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
1da177e4
LT		 2421}
2422
4d284cac 2423static __u16
1da177e4
LT		 2424qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2425 struct qeth_hdr *hdr)
2426{
330b6369 2427 unsigned short vlan_id = 0;
1da177e4
LT		 2428#ifdef CONFIG_QETH_IPV6
2429 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2430 skb->pkt_type = PACKET_HOST;
2431 skb->protocol = qeth_type_trans(skb, card->dev);
330b6369 2432 return 0;
1da177e4
LT		 2433 }
2434#endif /* CONFIG_QETH_IPV6 */
2435 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2436 ETH_P_IP);
2437 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2438 case QETH_CAST_UNICAST:
2439 skb->pkt_type = PACKET_HOST;
2440 break;
2441 case QETH_CAST_MULTICAST:
2442 skb->pkt_type = PACKET_MULTICAST;
2443 card->stats.multicast++;
2444 break;
2445 case QETH_CAST_BROADCAST:
2446 skb->pkt_type = PACKET_BROADCAST;
2447 card->stats.multicast++;
2448 break;
2449 case QETH_CAST_ANYCAST:
2450 case QETH_CAST_NOCAST:
2451 default:
2452 skb->pkt_type = PACKET_HOST;
2453 }
330b6369
FP		 2454
2455 if (hdr->hdr.l3.ext_flags &
2456 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2457 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2458 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2459 }
2460
1da177e4
LT		 2461 if (card->options.fake_ll)
2462 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2463 else
459a98ed 2464 skb_reset_mac_header(skb);
1da177e4
LT		 2465 skb->ip_summed = card->options.checksum_type;
2466 if (card->options.checksum_type == HW_CHECKSUMMING){
2467 if ( (hdr->hdr.l3.ext_flags &
2468 (QETH_HDR_EXT_CSUM_HDR_REQ |
2469 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2470 (QETH_HDR_EXT_CSUM_HDR_REQ |
2471 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2472 skb->ip_summed = CHECKSUM_UNNECESSARY;
2473 else
2474 skb->ip_summed = SW_CHECKSUMMING;
2475 }
330b6369 2476 return vlan_id;
1da177e4
LT		 2477}
2478
4d284cac 2479static void
1da177e4
LT		 2480qeth_process_inbound_buffer(struct qeth_card *card,
2481 struct qeth_qdio_buffer *buf, int index)
2482{
2483 struct qdio_buffer_element *element;
2484 struct sk_buff *skb;
2485 struct qeth_hdr *hdr;
2486 int offset;
2487 int rxrc;
2488 __u16 vlan_tag = 0;
2489
2490 /* get first element of current buffer */
2491 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2492 offset = 0;
09d2d38a
FP		 2493 if (card->options.performance_stats)
2494 card->perf_stats.bufs_rec++;
1da177e4
LT		 2495 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2496 &offset, &hdr))) {
2497 skb->dev = card->dev;
2498 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
95c78c8b 2499 qeth_layer2_rebuild_skb(card, skb, hdr);
e82b0f2c 2500 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
330b6369 2501 vlan_tag = qeth_rebuild_skb(card, skb, hdr);
500f83ab
UB		 2502 else { /*in case of OSN*/
2503 skb_push(skb, sizeof(struct qeth_hdr));
27d7ff46
ACM		 2504 skb_copy_to_linear_data(skb, hdr,
2505 sizeof(struct qeth_hdr));
500f83ab 2506 }
1da177e4
LT		 2507 /* is device UP ? */
2508 if (!(card->dev->flags & IFF_UP)){
2509 dev_kfree_skb_any(skb);
2510 continue;
2511 }
330b6369
FP		 2512 if (card->info.type == QETH_CARD_TYPE_OSN)
2513 rxrc = card->osn_info.data_cb(skb);
2514 else
1da177e4
LT		 2515#ifdef CONFIG_QETH_VLAN
2516 if (vlan_tag)
330b6369
FP		 2517 if (card->vlangrp)
2518 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2519 else {
2520 dev_kfree_skb_any(skb);
2521 continue;
2522 }
1da177e4
LT		 2523 else
2524#endif
500f83ab 2525 rxrc = netif_rx(skb);
1da177e4
LT		 2526 card->dev->last_rx = jiffies;
2527 card->stats.rx_packets++;
2528 card->stats.rx_bytes += skb->len;
2529 }
2530}
2531
4d284cac 2532static struct qeth_buffer_pool_entry *
1da177e4
LT		 2533qeth_get_buffer_pool_entry(struct qeth_card *card)
2534{
2535 struct qeth_buffer_pool_entry *entry;
2536
2537 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2538 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2539 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2540 struct qeth_buffer_pool_entry, list);
2541 list_del_init(&entry->list);
2542 return entry;
2543 }
2544 return NULL;
2545}
2546
4d284cac 2547static void
1da177e4
LT		 2548qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2549{
2550 struct qeth_buffer_pool_entry *pool_entry;
2551 int i;
09d2d38a 2552
1da177e4
LT		 2553 pool_entry = qeth_get_buffer_pool_entry(card);
2554 /*
2555 * since the buffer is accessed only from the input_tasklet
2556 * there shouldn't be a need to synchronize; also, since we use
2557 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2558 * buffers
2559 */
2560 BUG_ON(!pool_entry);
2561
2562 buf->pool_entry = pool_entry;
2563 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2564 buf->buffer->element[i].length = PAGE_SIZE;
2565 buf->buffer->element[i].addr = pool_entry->elements[i];
2566 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2567 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2568 else
2569 buf->buffer->element[i].flags = 0;
2570 }
2571 buf->state = QETH_QDIO_BUF_EMPTY;
2572}
2573
4d284cac 2574static void
1da177e4
LT		 2575qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2576 struct qeth_qdio_out_buffer *buf)
2577{
2578 int i;
2579 struct sk_buff *skb;
2580
2581 /* is PCI flag set on buffer? */
2582 if (buf->buffer->element[0].flags & 0x40)
2583 atomic_dec(&queue->set_pci_flags_count);
2584
2585 while ((skb = skb_dequeue(&buf->skb_list))){
2586 atomic_dec(&skb->users);
2587 dev_kfree_skb_any(skb);
2588 }
2589 qeth_eddp_buf_release_contexts(buf);
2590 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2591 buf->buffer->element[i].length = 0;
2592 buf->buffer->element[i].addr = NULL;
2593 buf->buffer->element[i].flags = 0;
2594 }
2595 buf->next_element_to_fill = 0;
2596 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2597}
2598
4d284cac 2599static void
1da177e4
LT		 2600qeth_queue_input_buffer(struct qeth_card *card, int index)
2601{
2602 struct qeth_qdio_q *queue = card->qdio.in_q;
2603 int count;
2604 int i;
2605 int rc;
2606
2607 QETH_DBF_TEXT(trace,6,"queinbuf");
2608 count = (index < queue->next_buf_to_init)?
2609 card->qdio.in_buf_pool.buf_count -
2610 (queue->next_buf_to_init - index) :
2611 card->qdio.in_buf_pool.buf_count -
2612 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2613 /* only requeue at a certain threshold to avoid SIGAs */
2614 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2615 for (i = queue->next_buf_to_init;
2616 i < queue->next_buf_to_init + count; ++i)
2617 qeth_init_input_buffer(card,
2618 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2619 /*
2620 * according to old code it should be avoided to requeue all
2621 * 128 buffers in order to benefit from PCI avoidance.
2622 * this function keeps at least one buffer (the buffer at
2623 * 'index') un-requeued -> this buffer is the first buffer that
2624 * will be requeued the next time
2625 */
09d2d38a
FP		 2626 if (card->options.performance_stats) {
2627 card->perf_stats.inbound_do_qdio_cnt++;
2628 card->perf_stats.inbound_do_qdio_start_time =
2629 qeth_get_micros();
2630 }
1da177e4
LT		 2631 rc = do_QDIO(CARD_DDEV(card),
2632 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2633 0, queue->next_buf_to_init, count, NULL);
09d2d38a
FP		 2634 if (card->options.performance_stats)
2635 card->perf_stats.inbound_do_qdio_time +=
2636 qeth_get_micros() -
2637 card->perf_stats.inbound_do_qdio_start_time;
1da177e4
LT		 2638 if (rc){
2639 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2640 "return %i (device %s).\n",
2641 rc, CARD_DDEV_ID(card));
2642 QETH_DBF_TEXT(trace,2,"qinberr");
2643 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2644 }
2645 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2646 QDIO_MAX_BUFFERS_PER_Q;
2647 }
2648}
2649
2650static inline void
2651qeth_put_buffer_pool_entry(struct qeth_card *card,
2652 struct qeth_buffer_pool_entry *entry)
2653{
2654 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2655 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2656}
2657
2658static void
2659qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2660 unsigned int qdio_err, unsigned int siga_err,
2661 unsigned int queue, int first_element, int count,
2662 unsigned long card_ptr)
2663{
2664 struct net_device *net_dev;
2665 struct qeth_card *card;
2666 struct qeth_qdio_buffer *buffer;
2667 int index;
2668 int i;
2669
2670 QETH_DBF_TEXT(trace, 6, "qdinput");
2671 card = (struct qeth_card *) card_ptr;
2672 net_dev = card->dev;
09d2d38a
FP		 2673 if (card->options.performance_stats) {
2674 card->perf_stats.inbound_cnt++;
2675 card->perf_stats.inbound_start_time = qeth_get_micros();
2676 }
1da177e4
LT		 2677 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2678 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2679 QETH_DBF_TEXT(trace, 1,"qdinchk");
2680 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2681 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2682 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2683 qeth_schedule_recovery(card);
2684 return;
2685 }
2686 }
2687 for (i = first_element; i < (first_element + count); ++i) {
2688 index = i % QDIO_MAX_BUFFERS_PER_Q;
2689 buffer = &card->qdio.in_q->bufs[index];
6c6b3e7c 2690 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
e82b0f2c 2691 qeth_check_qdio_errors(buffer->buffer,
6c6b3e7c 2692 qdio_err, siga_err,"qinerr")))
1da177e4
LT		 2693 qeth_process_inbound_buffer(card, buffer, index);
2694 /* clear buffer and give back to hardware */
2695 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2696 qeth_queue_input_buffer(card, index);
2697 }
09d2d38a
FP		 2698 if (card->options.performance_stats)
2699 card->perf_stats.inbound_time += qeth_get_micros() -
2700 card->perf_stats.inbound_start_time;
1da177e4
LT		 2701}
2702
4d284cac 2703static int
1da177e4
LT		 2704qeth_handle_send_error(struct qeth_card *card,
2705 struct qeth_qdio_out_buffer *buffer,
6c6b3e7c 2706 unsigned int qdio_err, unsigned int siga_err)
1da177e4
LT		 2707{
2708 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2709 int cc = siga_err & 3;
2710
2711 QETH_DBF_TEXT(trace, 6, "hdsnderr");
6c6b3e7c 2712 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
1da177e4
LT		 2713 switch (cc) {
2714 case 0:
2715 if (qdio_err){
2716 QETH_DBF_TEXT(trace, 1,"lnkfail");
2717 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2718 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2719 (u16)qdio_err, (u8)sbalf15);
2720 return QETH_SEND_ERROR_LINK_FAILURE;
2721 }
2722 return QETH_SEND_ERROR_NONE;
2723 case 2:
2724 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2725 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2726 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2727 return QETH_SEND_ERROR_KICK_IT;
2728 }
2729 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2730 return QETH_SEND_ERROR_RETRY;
2731 return QETH_SEND_ERROR_LINK_FAILURE;
2732 /* look at qdio_error and sbalf 15 */
2733 case 1:
2734 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2735 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2736 return QETH_SEND_ERROR_LINK_FAILURE;
2737 case 3:
1380fee2 2738 default:
1da177e4
LT		 2739 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2740 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2741 return QETH_SEND_ERROR_KICK_IT;
2742 }
1da177e4
LT		 2743}
2744
2745void
2746qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2747 int index, int count)
2748{
2749 struct qeth_qdio_out_buffer *buf;
2750 int rc;
2751 int i;
2752
2753 QETH_DBF_TEXT(trace, 6, "flushbuf");
2754
2755 for (i = index; i < index + count; ++i) {
2756 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2757 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2758 SBAL_FLAGS_LAST_ENTRY;
2759
2760 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2761 continue;
2762
2763 if (!queue->do_pack){
2764 if ((atomic_read(&queue->used_buffers) >=
2765 (QETH_HIGH_WATERMARK_PACK -
2766 QETH_WATERMARK_PACK_FUZZ)) &&
2767 !atomic_read(&queue->set_pci_flags_count)){
2768 /* it's likely that we'll go to packing
2769 * mode soon */
2770 atomic_inc(&queue->set_pci_flags_count);
2771 buf->buffer->element[0].flags |= 0x40;
2772 }
2773 } else {
2774 if (!atomic_read(&queue->set_pci_flags_count)){
2775 /*
2776 * there's no outstanding PCI any more, so we
2777 * have to request a PCI to be sure the the PCI
2778 * will wake at some time in the future then we
2779 * can flush packed buffers that might still be
2780 * hanging around, which can happen if no
2781 * further send was requested by the stack
2782 */
2783 atomic_inc(&queue->set_pci_flags_count);
2784 buf->buffer->element[0].flags |= 0x40;
2785 }
2786 }
2787 }
2788
2789 queue->card->dev->trans_start = jiffies;
09d2d38a
FP		 2790 if (queue->card->options.performance_stats) {
2791 queue->card->perf_stats.outbound_do_qdio_cnt++;
2792 queue->card->perf_stats.outbound_do_qdio_start_time =
2793 qeth_get_micros();
2794 }
1da177e4
LT		 2795 if (under_int)
2796 rc = do_QDIO(CARD_DDEV(queue->card),
2797 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2798 queue->queue_no, index, count, NULL);
2799 else
2800 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2801 queue->queue_no, index, count, NULL);
09d2d38a
FP		 2802 if (queue->card->options.performance_stats)
2803 queue->card->perf_stats.outbound_do_qdio_time +=
2804 qeth_get_micros() -
2805 queue->card->perf_stats.outbound_do_qdio_start_time;
1da177e4 2806 if (rc){
1da177e4
LT		 2807 QETH_DBF_TEXT(trace, 2, "flushbuf");
2808 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
f3d242e8 2809 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
1da177e4
LT		 2810 queue->card->stats.tx_errors += count;
2811 /* this must not happen under normal circumstances. if it
2812 * happens something is really wrong -> recover */
2813 qeth_schedule_recovery(queue->card);
2814 return;
2815 }
2816 atomic_add(count, &queue->used_buffers);
09d2d38a
FP		 2817 if (queue->card->options.performance_stats)
2818 queue->card->perf_stats.bufs_sent += count;
1da177e4
LT		 2819}
2820
2821/*
2822 * Switched to packing state if the number of used buffers on a queue
2823 * reaches a certain limit.
2824 */
4d284cac 2825static void
1da177e4
LT		 2826qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2827{
2828 if (!queue->do_pack) {
2829 if (atomic_read(&queue->used_buffers)
2830 >= QETH_HIGH_WATERMARK_PACK){
2831 /* switch non-PACKING -> PACKING */
2832 QETH_DBF_TEXT(trace, 6, "np->pack");
09d2d38a
FP		 2833 if (queue->card->options.performance_stats)
2834 queue->card->perf_stats.sc_dp_p++;
1da177e4
LT		 2835 queue->do_pack = 1;
2836 }
2837 }
2838}
2839
2840/*
2841 * Switches from packing to non-packing mode. If there is a packing
2842 * buffer on the queue this buffer will be prepared to be flushed.
2843 * In that case 1 is returned to inform the caller. If no buffer
2844 * has to be flushed, zero is returned.
2845 */
4d284cac 2846static int
1da177e4
LT		 2847qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2848{
2849 struct qeth_qdio_out_buffer *buffer;
2850 int flush_count = 0;
2851
2852 if (queue->do_pack) {
2853 if (atomic_read(&queue->used_buffers)
2854 <= QETH_LOW_WATERMARK_PACK) {
2855 /* switch PACKING -> non-PACKING */
2856 QETH_DBF_TEXT(trace, 6, "pack->np");
09d2d38a
FP		 2857 if (queue->card->options.performance_stats)
2858 queue->card->perf_stats.sc_p_dp++;
1da177e4
LT		 2859 queue->do_pack = 0;
2860 /* flush packing buffers */
2861 buffer = &queue->bufs[queue->next_buf_to_fill];
2862 if ((atomic_read(&buffer->state) ==
2863 QETH_QDIO_BUF_EMPTY) &&
2864 (buffer->next_element_to_fill > 0)) {
2865 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2866 flush_count++;
2867 queue->next_buf_to_fill =
2868 (queue->next_buf_to_fill + 1) %
2869 QDIO_MAX_BUFFERS_PER_Q;
09d2d38a 2870 }
1da177e4
LT		 2871 }
2872 }
2873 return flush_count;
2874}
2875
2876/*
2877 * Called to flush a packing buffer if no more pci flags are on the queue.
2878 * Checks if there is a packing buffer and prepares it to be flushed.
2879 * In that case returns 1, otherwise zero.
2880 */
4d284cac 2881static int
1da177e4
LT		 2882qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2883{
2884 struct qeth_qdio_out_buffer *buffer;
2885
2886 buffer = &queue->bufs[queue->next_buf_to_fill];
2887 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2888 (buffer->next_element_to_fill > 0)){
2889 /* it's a packing buffer */
2890 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2891 queue->next_buf_to_fill =
2892 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2893 return 1;
2894 }
2895 return 0;
2896}
2897
4d284cac 2898static void
1da177e4
LT		 2899qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2900{
2901 int index;
2902 int flush_cnt = 0;
2903 int q_was_packing = 0;
2904
2905 /*
2906 * check if weed have to switch to non-packing mode or if
2907 * we have to get a pci flag out on the queue
2908 */
2909 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2910 !atomic_read(&queue->set_pci_flags_count)){
9163bb2e 2911 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
1da177e4
LT		 2912 QETH_OUT_Q_UNLOCKED) {
2913 /*
2914 * If we get in here, there was no action in
2915 * do_send_packet. So, we check if there is a
2916 * packing buffer to be flushed here.
2917 */
2918 netif_stop_queue(queue->card->dev);
2919 index = queue->next_buf_to_fill;
2920 q_was_packing = queue->do_pack;
2921 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2922 if (!flush_cnt &&
2923 !atomic_read(&queue->set_pci_flags_count))
2924 flush_cnt +=
2925 qeth_flush_buffers_on_no_pci(queue);
09d2d38a
FP		 2926 if (queue->card->options.performance_stats &&
2927 q_was_packing)
1da177e4
LT		 2928 queue->card->perf_stats.bufs_sent_pack +=
2929 flush_cnt;
1da177e4
LT		 2930 if (flush_cnt)
2931 qeth_flush_buffers(queue, 1, index, flush_cnt);
2932 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2933 }
2934 }
2935}
2936
2937static void
2938qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2939 unsigned int qdio_error, unsigned int siga_error,
2940 unsigned int __queue, int first_element, int count,
2941 unsigned long card_ptr)
2942{
2943 struct qeth_card *card = (struct qeth_card *) card_ptr;
2944 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2945 struct qeth_qdio_out_buffer *buffer;
2946 int i;
2947
2948 QETH_DBF_TEXT(trace, 6, "qdouhdl");
2949 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2950 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
f3d242e8
FP		 2951 QETH_DBF_TEXT(trace, 2, "achkcond");
2952 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
1da177e4
LT		 2953 QETH_DBF_TEXT_(trace, 2, "%08x", status);
2954 netif_stop_queue(card->dev);
2955 qeth_schedule_recovery(card);
2956 return;
2957 }
2958 }
09d2d38a
FP		 2959 if (card->options.performance_stats) {
2960 card->perf_stats.outbound_handler_cnt++;
2961 card->perf_stats.outbound_handler_start_time =
2962 qeth_get_micros();
2963 }
1da177e4
LT		 2964 for(i = first_element; i < (first_element + count); ++i){
2965 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2966 /*we only handle the KICK_IT error by doing a recovery */
6c6b3e7c
FP		 2967 if (qeth_handle_send_error(card, buffer,
2968 qdio_error, siga_error)
1da177e4
LT		 2969 == QETH_SEND_ERROR_KICK_IT){
2970 netif_stop_queue(card->dev);
2971 qeth_schedule_recovery(card);
2972 return;
2973 }
2974 qeth_clear_output_buffer(queue, buffer);
2975 }
2976 atomic_sub(count, &queue->used_buffers);
2977 /* check if we need to do something on this outbound queue */
2978 if (card->info.type != QETH_CARD_TYPE_IQD)
2979 qeth_check_outbound_queue(queue);
2980
2981 netif_wake_queue(queue->card->dev);
09d2d38a
FP		 2982 if (card->options.performance_stats)
2983 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2984 card->perf_stats.outbound_handler_start_time;
1da177e4
LT		 2985}
2986
2987static void
2988qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
2989{
2990
2991 param_field[0] = _ascebc['P'];
2992 param_field[1] = _ascebc['C'];
2993 param_field[2] = _ascebc['I'];
2994 param_field[3] = _ascebc['T'];
2995 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2996 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2997 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2998}
2999
3000static void
3001qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3002{
3003 param_field[16] = _ascebc['B'];
3004 param_field[17] = _ascebc['L'];
3005 param_field[18] = _ascebc['K'];
3006 param_field[19] = _ascebc['T'];
3007 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3008 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3009 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3010}
3011
3012static void
3013qeth_initialize_working_pool_list(struct qeth_card *card)
3014{
3015 struct qeth_buffer_pool_entry *entry;
3016
3017 QETH_DBF_TEXT(trace,5,"inwrklst");
3018
3019 list_for_each_entry(entry,
3020 &card->qdio.init_pool.entry_list, init_list) {
3021 qeth_put_buffer_pool_entry(card,entry);
3022 }
3023}
3024
3025static void
3026qeth_clear_working_pool_list(struct qeth_card *card)
3027{
3028 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3029
3030 QETH_DBF_TEXT(trace,5,"clwrklst");
3031 list_for_each_entry_safe(pool_entry, tmp,
3032 &card->qdio.in_buf_pool.entry_list, list){
3033 list_del(&pool_entry->list);
3034 }
3035}
3036
3037static void
3038qeth_free_buffer_pool(struct qeth_card *card)
3039{
3040 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3041 int i=0;
3042 QETH_DBF_TEXT(trace,5,"freepool");
3043 list_for_each_entry_safe(pool_entry, tmp,
3044 &card->qdio.init_pool.entry_list, init_list){
3045 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3046 free_page((unsigned long)pool_entry->elements[i]);
3047 list_del(&pool_entry->init_list);
3048 kfree(pool_entry);
3049 }
3050}
3051
3052static int
3053qeth_alloc_buffer_pool(struct qeth_card *card)
3054{
3055 struct qeth_buffer_pool_entry *pool_entry;
3056 void *ptr;
3057 int i, j;
3058
3059 QETH_DBF_TEXT(trace,5,"alocpool");
3060 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3061 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3062 if (!pool_entry){
3063 qeth_free_buffer_pool(card);
3064 return -ENOMEM;
3065 }
3066 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
9123e0d7 3067 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3068 if (!ptr) {
3069 while (j > 0)
3070 free_page((unsigned long)
3071 pool_entry->elements[--j]);
3072 kfree(pool_entry);
3073 qeth_free_buffer_pool(card);
3074 return -ENOMEM;
3075 }
3076 pool_entry->elements[j] = ptr;
3077 }
3078 list_add(&pool_entry->init_list,
3079 &card->qdio.init_pool.entry_list);
3080 }
3081 return 0;
3082}
3083
3084int
3085qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3086{
3087 QETH_DBF_TEXT(trace, 2, "realcbp");
3088
3089 if ((card->state != CARD_STATE_DOWN) &&
3090 (card->state != CARD_STATE_RECOVER))
3091 return -EPERM;
3092
3093 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3094 qeth_clear_working_pool_list(card);
3095 qeth_free_buffer_pool(card);
3096 card->qdio.in_buf_pool.buf_count = bufcnt;
3097 card->qdio.init_pool.buf_count = bufcnt;
3098 return qeth_alloc_buffer_pool(card);
3099}
3100
3101static int
3102qeth_alloc_qdio_buffers(struct qeth_card *card)
3103{
3104 int i, j;
3105
3106 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3107
f956b690
FP		 3108 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3109 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
1da177e4
LT		 3110 return 0;
3111
e82b0f2c 3112 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
9123e0d7 3113 GFP_KERNEL|GFP_DMA);
1da177e4 3114 if (!card->qdio.in_q)
f956b690 3115 goto out_nomem;
1da177e4
LT		 3116 QETH_DBF_TEXT(setup, 2, "inq");
3117 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3118 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3119 /* give inbound qeth_qdio_buffers their qdio_buffers */
3120 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3121 card->qdio.in_q->bufs[i].buffer =
3122 &card->qdio.in_q->qdio_bufs[i];
3123 /* inbound buffer pool */
f956b690
FP		 3124 if (qeth_alloc_buffer_pool(card))
3125 goto out_freeinq;
1da177e4
LT		 3126 /* outbound */
3127 card->qdio.out_qs =
3128 kmalloc(card->qdio.no_out_queues *
3129 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
f956b690
FP		 3130 if (!card->qdio.out_qs)
3131 goto out_freepool;
3132 for (i = 0; i < card->qdio.no_out_queues; ++i) {
1da177e4 3133 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
9123e0d7 3134 GFP_KERNEL|GFP_DMA);
f956b690
FP		 3135 if (!card->qdio.out_qs[i])
3136 goto out_freeoutq;
1da177e4
LT		 3137 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3138 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3139 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3140 card->qdio.out_qs[i]->queue_no = i;
3141 /* give outbound qeth_qdio_buffers their qdio_buffers */
3142 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3143 card->qdio.out_qs[i]->bufs[j].buffer =
3144 &card->qdio.out_qs[i]->qdio_bufs[j];
3145 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3146 skb_list);
91ebe2a9
HC		 3147 lockdep_set_class(
3148 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3149 &qdio_out_skb_queue_key);
1da177e4
LT		 3150 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3151 }
3152 }
1da177e4 3153 return 0;
f956b690
FP		 3154
3155out_freeoutq:
3156 while (i > 0)
3157 kfree(card->qdio.out_qs[--i]);
3158 kfree(card->qdio.out_qs);
3159out_freepool:
3160 qeth_free_buffer_pool(card);
3161out_freeinq:
3162 kfree(card->qdio.in_q);
3163out_nomem:
3164 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3165 return -ENOMEM;
1da177e4
LT		 3166}
3167
3168static void
3169qeth_free_qdio_buffers(struct qeth_card *card)
3170{
3171 int i, j;
3172
3173 QETH_DBF_TEXT(trace, 2, "freeqdbf");
9163bb2e 3174 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
f956b690 3175 QETH_QDIO_UNINITIALIZED)
1da177e4
LT		 3176 return;
3177 kfree(card->qdio.in_q);
3178 /* inbound buffer pool */
3179 qeth_free_buffer_pool(card);
3180 /* free outbound qdio_qs */
3181 for (i = 0; i < card->qdio.no_out_queues; ++i){
3182 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3183 qeth_clear_output_buffer(card->qdio.out_qs[i],
3184 &card->qdio.out_qs[i]->bufs[j]);
3185 kfree(card->qdio.out_qs[i]);
3186 }
3187 kfree(card->qdio.out_qs);
1da177e4
LT		 3188}
3189
3190static void
3191qeth_clear_qdio_buffers(struct qeth_card *card)
3192{
3193 int i, j;
3194
3195 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3196 /* clear outbound buffers to free skbs */
3197 for (i = 0; i < card->qdio.no_out_queues; ++i)
3198 if (card->qdio.out_qs[i]){
3199 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3200 qeth_clear_output_buffer(card->qdio.out_qs[i],
3201 &card->qdio.out_qs[i]->bufs[j]);
3202 }
3203}
3204
3205static void
3206qeth_init_qdio_info(struct qeth_card *card)
3207{
3208 QETH_DBF_TEXT(setup, 4, "intqdinf");
f956b690 3209 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1da177e4
LT		 3210 /* inbound */
3211 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3212 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3213 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3214 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3215 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1da177e4
LT		 3216}
3217
3218static int
3219qeth_init_qdio_queues(struct qeth_card *card)
3220{
3221 int i, j;
3222 int rc;
3223
3224 QETH_DBF_TEXT(setup, 2, "initqdqs");
3225
3226 /* inbound queue */
3227 memset(card->qdio.in_q->qdio_bufs, 0,
3228 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3229 qeth_initialize_working_pool_list(card);
3230 /*give only as many buffers to hardware as we have buffer pool entries*/
3231 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3232 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3233 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3234 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3235 card->qdio.in_buf_pool.buf_count - 1, NULL);
3236 if (rc) {
3237 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3238 return rc;
3239 }
3240 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3241 if (rc) {
3242 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3243 return rc;
3244 }
3245 /* outbound queue */
3246 for (i = 0; i < card->qdio.no_out_queues; ++i){
3247 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3248 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3249 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3250 qeth_clear_output_buffer(card->qdio.out_qs[i],
3251 &card->qdio.out_qs[i]->bufs[j]);
3252 }
3253 card->qdio.out_qs[i]->card = card;
3254 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3255 card->qdio.out_qs[i]->do_pack = 0;
3256 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3257 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3258 atomic_set(&card->qdio.out_qs[i]->state,
3259 QETH_OUT_Q_UNLOCKED);
3260 }
3261 return 0;
3262}
3263
3264static int
3265qeth_qdio_establish(struct qeth_card *card)
3266{
3267 struct qdio_initialize init_data;
3268 char *qib_param_field;
3269 struct qdio_buffer **in_sbal_ptrs;
3270 struct qdio_buffer **out_sbal_ptrs;
3271 int i, j, k;
f956b690 3272 int rc = 0;
1da177e4
LT		 3273
3274 QETH_DBF_TEXT(setup, 2, "qdioest");
3275
88abaab4 3276 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
1da177e4
LT		 3277 GFP_KERNEL);
3278 if (!qib_param_field)
3279 return -ENOMEM;
3280
1da177e4
LT		 3281 qeth_create_qib_param_field(card, qib_param_field);
3282 qeth_create_qib_param_field_blkt(card, qib_param_field);
3283
3284 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3285 GFP_KERNEL);
3286 if (!in_sbal_ptrs) {
3287 kfree(qib_param_field);
3288 return -ENOMEM;
3289 }
3290 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3291 in_sbal_ptrs[i] = (struct qdio_buffer *)
3292 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3293
3294 out_sbal_ptrs =
3295 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3296 sizeof(void *), GFP_KERNEL);
3297 if (!out_sbal_ptrs) {
3298 kfree(in_sbal_ptrs);
3299 kfree(qib_param_field);
3300 return -ENOMEM;
3301 }
3302 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3303 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3304 out_sbal_ptrs[k] = (struct qdio_buffer *)
3305 virt_to_phys(card->qdio.out_qs[i]->
3306 bufs[j].buffer);
3307 }
3308
3309 memset(&init_data, 0, sizeof(struct qdio_initialize));
3310 init_data.cdev = CARD_DDEV(card);
3311 init_data.q_format = qeth_get_qdio_q_format(card);
3312 init_data.qib_param_field_format = 0;
3313 init_data.qib_param_field = qib_param_field;
3314 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3315 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3316 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3317 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3318 init_data.no_input_qs = 1;
3319 init_data.no_output_qs = card->qdio.no_out_queues;
3320 init_data.input_handler = (qdio_handler_t *)
3321 qeth_qdio_input_handler;
3322 init_data.output_handler = (qdio_handler_t *)
3323 qeth_qdio_output_handler;
3324 init_data.int_parm = (unsigned long) card;
3325 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3326 QDIO_OUTBOUND_0COPY_SBALS |
3327 QDIO_USE_OUTBOUND_PCIS;
3328 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3329 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3330
f956b690
FP		 3331 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3332 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3333 if ((rc = qdio_initialize(&init_data)))
3334 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1da177e4
LT		 3335
3336 kfree(out_sbal_ptrs);
3337 kfree(in_sbal_ptrs);
3338 kfree(qib_param_field);
3339 return rc;
3340}
3341
3342static int
3343qeth_qdio_activate(struct qeth_card *card)
3344{
3345 QETH_DBF_TEXT(setup,3,"qdioact");
3346 return qdio_activate(CARD_DDEV(card), 0);
3347}
3348
3349static int
3350qeth_clear_channel(struct qeth_channel *channel)
3351{
3352 unsigned long flags;
3353 struct qeth_card *card;
3354 int rc;
3355
3356 QETH_DBF_TEXT(trace,3,"clearch");
3357 card = CARD_FROM_CDEV(channel->ccwdev);
3358 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3359 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3360 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3361
3362 if (rc)
3363 return rc;
3364 rc = wait_event_interruptible_timeout(card->wait_q,
3365 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3366 if (rc == -ERESTARTSYS)
3367 return rc;
3368 if (channel->state != CH_STATE_STOPPED)
3369 return -ETIME;
3370 channel->state = CH_STATE_DOWN;
3371 return 0;
3372}
3373
3374static int
3375qeth_halt_channel(struct qeth_channel *channel)
3376{
3377 unsigned long flags;
3378 struct qeth_card *card;
3379 int rc;
3380
3381 QETH_DBF_TEXT(trace,3,"haltch");
3382 card = CARD_FROM_CDEV(channel->ccwdev);
3383 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3384 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3385 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3386
3387 if (rc)
3388 return rc;
3389 rc = wait_event_interruptible_timeout(card->wait_q,
3390 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3391 if (rc == -ERESTARTSYS)
3392 return rc;
3393 if (channel->state != CH_STATE_HALTED)
3394 return -ETIME;
3395 return 0;
3396}
3397
3398static int
3399qeth_halt_channels(struct qeth_card *card)
3400{
f3d242e8 3401 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3402
3403 QETH_DBF_TEXT(trace,3,"haltchs");
f3d242e8
FP		 3404 rc1 = qeth_halt_channel(&card->read);
3405 rc2 = qeth_halt_channel(&card->write);
3406 rc3 = qeth_halt_channel(&card->data);
3407 if (rc1)
3408 return rc1;
e82b0f2c 3409 if (rc2)
f3d242e8
FP		 3410 return rc2;
3411 return rc3;
1da177e4
LT		 3412}
3413static int
3414qeth_clear_channels(struct qeth_card *card)
3415{
f3d242e8 3416 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3417
3418 QETH_DBF_TEXT(trace,3,"clearchs");
f3d242e8
FP		 3419 rc1 = qeth_clear_channel(&card->read);
3420 rc2 = qeth_clear_channel(&card->write);
3421 rc3 = qeth_clear_channel(&card->data);
3422 if (rc1)
3423 return rc1;
e82b0f2c 3424 if (rc2)
f3d242e8
FP		 3425 return rc2;
3426 return rc3;
1da177e4
LT		 3427}
3428
3429static int
3430qeth_clear_halt_card(struct qeth_card *card, int halt)
3431{
3432 int rc = 0;
3433
3434 QETH_DBF_TEXT(trace,3,"clhacrd");
3435 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3436
3437 if (halt)
3438 rc = qeth_halt_channels(card);
3439 if (rc)
3440 return rc;
3441 return qeth_clear_channels(card);
3442}
3443
3444static int
3445qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3446{
3447 int rc = 0;
3448
3449 QETH_DBF_TEXT(trace,3,"qdioclr");
f956b690
FP		 3450 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3451 QETH_QDIO_CLEANING)) {
3452 case QETH_QDIO_ESTABLISHED:
1da177e4 3453 if ((rc = qdio_cleanup(CARD_DDEV(card),
f956b690
FP		 3454 (card->info.type == QETH_CARD_TYPE_IQD) ?
3455 QDIO_FLAG_CLEANUP_USING_HALT :
3456 QDIO_FLAG_CLEANUP_USING_CLEAR)))
1da177e4 3457 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
f956b690
FP		 3458 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3459 break;
3460 case QETH_QDIO_CLEANING:
3461 return rc;
3462 default:
3463 break;
1da177e4
LT		 3464 }
3465 if ((rc = qeth_clear_halt_card(card, use_halt)))
3466 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3467 card->state = CARD_STATE_DOWN;
3468 return rc;
3469}
3470
3471static int
3472qeth_dm_act(struct qeth_card *card)
3473{
3474 int rc;
3475 struct qeth_cmd_buffer *iob;
3476
3477 QETH_DBF_TEXT(setup,2,"dmact");
3478
3479 iob = qeth_wait_for_buffer(&card->write);
3480 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3481
3482 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3483 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3484 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3485 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3486 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3487 return rc;
3488}
3489
3490static int
3491qeth_mpc_initialize(struct qeth_card *card)
3492{
3493 int rc;
3494
3495 QETH_DBF_TEXT(setup,2,"mpcinit");
3496
3497 if ((rc = qeth_issue_next_read(card))){
3498 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3499 return rc;
3500 }
3501 if ((rc = qeth_cm_enable(card))){
3502 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
f3d242e8 3503 goto out_qdio;
1da177e4
LT		 3504 }
3505 if ((rc = qeth_cm_setup(card))){
3506 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
f3d242e8 3507 goto out_qdio;
1da177e4
LT		 3508 }
3509 if ((rc = qeth_ulp_enable(card))){
3510 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
f3d242e8 3511 goto out_qdio;
1da177e4
LT		 3512 }
3513 if ((rc = qeth_ulp_setup(card))){
3514 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3515 goto out_qdio;
1da177e4
LT		 3516 }
3517 if ((rc = qeth_alloc_qdio_buffers(card))){
3518 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3519 goto out_qdio;
1da177e4
LT		 3520 }
3521 if ((rc = qeth_qdio_establish(card))){
3522 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3523 qeth_free_qdio_buffers(card);
3524 goto out_qdio;
3525 }
3526 if ((rc = qeth_qdio_activate(card))){
3527 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3528 goto out_qdio;
3529 }
3530 if ((rc = qeth_dm_act(card))){
3531 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3532 goto out_qdio;
3533 }
3534
3535 return 0;
3536out_qdio:
500f83ab 3537 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 3538 return rc;
3539}
3540
3541static struct net_device *
3542qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3543{
3544 struct net_device *dev = NULL;
3545
3546 switch (type) {
3547 case QETH_CARD_TYPE_OSAE:
3548 switch (linktype) {
3549 case QETH_LINK_TYPE_LANE_TR:
3550 case QETH_LINK_TYPE_HSTR:
3551#ifdef CONFIG_TR
3552 dev = alloc_trdev(0);
3553#endif /* CONFIG_TR */
3554 break;
3555 default:
3556 dev = alloc_etherdev(0);
3557 }
3558 break;
3559 case QETH_CARD_TYPE_IQD:
3560 dev = alloc_netdev(0, "hsi%d", ether_setup);
3561 break;
500f83ab
UB		 3562 case QETH_CARD_TYPE_OSN:
3563 dev = alloc_netdev(0, "osn%d", ether_setup);
3564 break;
1da177e4
LT		 3565 default:
3566 dev = alloc_etherdev(0);
3567 }
3568 return dev;
3569}
3570
3571/*hard_header fake function; used in case fake_ll is set */
3572static int
3573qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3574 unsigned short type, void *daddr, void *saddr,
3575 unsigned len)
3576{
e23dd9cd
FP		 3577 if(dev->type == ARPHRD_IEEE802_TR){
3578 struct trh_hdr *hdr;
3579 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3580 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3581 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3582 return QETH_FAKE_LL_LEN_TR;
3583
3584 } else {
3585 struct ethhdr *hdr;
3586 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3587 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3588 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3589 if (type != ETH_P_802_3)
3590 hdr->h_proto = htons(type);
3591 else
3592 hdr->h_proto = htons(len);
3593 return QETH_FAKE_LL_LEN_ETH;
1da177e4 3594
e23dd9cd 3595 }
1da177e4
LT		 3596}
3597
4d284cac 3598static int
1da177e4
LT		 3599qeth_send_packet(struct qeth_card *, struct sk_buff *);
3600
3601static int
3602qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3603{
3604 int rc;
3605 struct qeth_card *card;
3606
3607 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3608 card = (struct qeth_card *)dev->priv;
3609 if (skb==NULL) {
3610 card->stats.tx_dropped++;
3611 card->stats.tx_errors++;
3612 /* return OK; otherwise ksoftirqd goes to 100% */
3613 return NETDEV_TX_OK;
3614 }
3615 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3616 card->stats.tx_dropped++;
3617 card->stats.tx_errors++;
3618 card->stats.tx_carrier_errors++;
3619 dev_kfree_skb_any(skb);
3620 /* return OK; otherwise ksoftirqd goes to 100% */
3621 return NETDEV_TX_OK;
3622 }
09d2d38a
FP		 3623 if (card->options.performance_stats) {
3624 card->perf_stats.outbound_cnt++;
3625 card->perf_stats.outbound_start_time = qeth_get_micros();
3626 }
1da177e4
LT		 3627 netif_stop_queue(dev);
3628 if ((rc = qeth_send_packet(card, skb))) {
3629 if (rc == -EBUSY) {
3630 return NETDEV_TX_BUSY;
3631 } else {
3632 card->stats.tx_errors++;
3633 card->stats.tx_dropped++;
3634 dev_kfree_skb_any(skb);
3635 /*set to OK; otherwise ksoftirqd goes to 100% */
3636 rc = NETDEV_TX_OK;
3637 }
3638 }
3639 netif_wake_queue(dev);
09d2d38a
FP		 3640 if (card->options.performance_stats)
3641 card->perf_stats.outbound_time += qeth_get_micros() -
3642 card->perf_stats.outbound_start_time;
1da177e4
LT		 3643 return rc;
3644}
3645
3646static int
3647qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3648{
3649 int rc = 0;
3650#ifdef CONFIG_QETH_VLAN
3651 struct vlan_group *vg;
3652 int i;
3653
3654 if (!(vg = card->vlangrp))
3655 return rc;
3656
3657 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
5c15bdec 3658 if (vlan_group_get_device(vg, i) == dev){
1da177e4
LT		 3659 rc = QETH_VLAN_CARD;
3660 break;
3661 }
3662 }
6c6b3e7c
FP		 3663 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3664 return 0;
3665
1da177e4
LT		 3666#endif
3667 return rc;
3668}
3669
3670static int
3671qeth_verify_dev(struct net_device *dev)
3672{
3673 struct qeth_card *card;
3674 unsigned long flags;
3675 int rc = 0;
3676
3677 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3678 list_for_each_entry(card, &qeth_card_list.list, list){
3679 if (card->dev == dev){
3680 rc = QETH_REAL_CARD;
3681 break;
3682 }
3683 rc = qeth_verify_vlan_dev(dev, card);
3684 if (rc)
3685 break;
3686 }
3687 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3688
3689 return rc;
3690}
3691
3692static struct qeth_card *
3693qeth_get_card_from_dev(struct net_device *dev)
3694{
3695 struct qeth_card *card = NULL;
3696 int rc;
3697
3698 rc = qeth_verify_dev(dev);
3699 if (rc == QETH_REAL_CARD)
3700 card = (struct qeth_card *)dev->priv;
3701 else if (rc == QETH_VLAN_CARD)
3702 card = (struct qeth_card *)
3703 VLAN_DEV_INFO(dev)->real_dev->priv;
3704
3705 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3706 return card ;
3707}
3708
3709static void
3710qeth_tx_timeout(struct net_device *dev)
3711{
3712 struct qeth_card *card;
3713
3714 card = (struct qeth_card *) dev->priv;
3715 card->stats.tx_errors++;
3716 qeth_schedule_recovery(card);
3717}
3718
3719static int
3720qeth_open(struct net_device *dev)
3721{
3722 struct qeth_card *card;
3723
3724 QETH_DBF_TEXT(trace, 4, "qethopen");
3725
3726 card = (struct qeth_card *) dev->priv;
3727
3728 if (card->state != CARD_STATE_SOFTSETUP)
3729 return -ENODEV;
3730
500f83ab
UB		 3731 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3732 (card->options.layer2) &&
e08d88cc 3733 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
1da177e4
LT		 3734 QETH_DBF_TEXT(trace,4,"nomacadr");
3735 return -EPERM;
3736 }
1da177e4
LT		 3737 card->data.state = CH_STATE_UP;
3738 card->state = CARD_STATE_UP;
ba1aa084
UB		 3739 card->dev->flags |= IFF_UP;
3740 netif_start_queue(dev);
e82b0f2c 3741
4965e97f
FP		 3742 if (!card->lan_online && netif_carrier_ok(dev))
3743 netif_carrier_off(dev);
1da177e4
LT		 3744 return 0;
3745}
3746
3747static int
3748qeth_stop(struct net_device *dev)
3749{
3750 struct qeth_card *card;
3751
3752 QETH_DBF_TEXT(trace, 4, "qethstop");
3753
3754 card = (struct qeth_card *) dev->priv;
3755
b85e1fa1 3756 netif_tx_disable(dev);
1da177e4
LT		 3757 card->dev->flags &= ~IFF_UP;
3758 if (card->state == CARD_STATE_UP)
3759 card->state = CARD_STATE_SOFTSETUP;
3760 return 0;
3761}
3762
4d284cac 3763static int
1da177e4
LT		 3764qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3765{
3766 int cast_type = RTN_UNSPEC;
3767
500f83ab
UB		 3768 if (card->info.type == QETH_CARD_TYPE_OSN)
3769 return cast_type;
3770
1da177e4
LT		 3771 if (skb->dst && skb->dst->neighbour){
3772 cast_type = skb->dst->neighbour->type;
3773 if ((cast_type == RTN_BROADCAST) ||
3774 (cast_type == RTN_MULTICAST) ||
3775 (cast_type == RTN_ANYCAST))
3776 return cast_type;
3777 else
3778 return RTN_UNSPEC;
3779 }
3780 /* try something else */
3781 if (skb->protocol == ETH_P_IPV6)
d56f90a7
ACM		 3782 return (skb_network_header(skb)[24] == 0xff) ?
3783 RTN_MULTICAST : 0;
1da177e4 3784 else if (skb->protocol == ETH_P_IP)
d56f90a7
ACM		 3785 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
3786 RTN_MULTICAST : 0;
1da177e4
LT		 3787 /* ... */
3788 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3789 return RTN_BROADCAST;
3790 else {
3791 u16 hdr_mac;
3792
3793 hdr_mac = *((u16 *)skb->data);
3794 /* tr multicast? */
3795 switch (card->info.link_type) {
3796 case QETH_LINK_TYPE_HSTR:
3797 case QETH_LINK_TYPE_LANE_TR:
3798 if ((hdr_mac == QETH_TR_MAC_NC) ||
3799 (hdr_mac == QETH_TR_MAC_C))
3800 return RTN_MULTICAST;
1380fee2 3801 break;
1da177e4
LT		 3802 /* eth or so multicast? */
3803 default:
3804 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3805 (hdr_mac == QETH_ETH_MAC_V6))
3806 return RTN_MULTICAST;
3807 }
3808 }
3809 return cast_type;
3810}
3811
4d284cac 3812static int
1da177e4
LT		 3813qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3814 int ipv, int cast_type)
3815{
3816 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3817 return card->qdio.default_out_queue;
3818 switch (card->qdio.no_out_queues) {
3819 case 4:
3820 if (cast_type && card->info.is_multicast_different)
3821 return card->info.is_multicast_different &
3822 (card->qdio.no_out_queues - 1);
3823 if (card->qdio.do_prio_queueing && (ipv == 4)) {
eddc9ec5
ACM		 3824 const u8 tos = ip_hdr(skb)->tos;
3825
1da177e4 3826 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
eddc9ec5 3827 if (tos & IP_TOS_NOTIMPORTANT)
1da177e4 3828 return 3;
eddc9ec5 3829 if (tos & IP_TOS_HIGHRELIABILITY)
1da177e4 3830 return 2;
eddc9ec5 3831 if (tos & IP_TOS_HIGHTHROUGHPUT)
1da177e4 3832 return 1;
eddc9ec5 3833 if (tos & IP_TOS_LOWDELAY)
1da177e4
LT		 3834 return 0;
3835 }
3836 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
eddc9ec5 3837 return 3 - (tos >> 6);
1da177e4
LT		 3838 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3839 /* TODO: IPv6!!! */
3840 }
3841 return card->qdio.default_out_queue;
3842 case 1: /* fallthrough for single-out-queue 1920-device */
3843 default:
3844 return card->qdio.default_out_queue;
3845 }
3846}
3847
3848static inline int
3849qeth_get_ip_version(struct sk_buff *skb)
3850{
3851 switch (skb->protocol) {
3852 case ETH_P_IPV6:
3853 return 6;
3854 case ETH_P_IP:
3855 return 4;
3856 default:
3857 return 0;
3858 }
3859}
3860
4d284cac 3861static struct qeth_hdr *
f7b65d70 3862__qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
1da177e4 3863{
1da177e4
LT		 3864#ifdef CONFIG_QETH_VLAN
3865 u16 *tag;
f7b65d70 3866 if (card->vlangrp && vlan_tx_tag_present(skb) &&
1da177e4
LT		 3867 ((ipv == 6) || card->options.layer2) ) {
3868 /*
3869 * Move the mac addresses (6 bytes src, 6 bytes dest)
3870 * to the beginning of the new header. We are using three
3871 * memcpys instead of one memmove to save cycles.
3872 */
f7b65d70 3873 skb_push(skb, VLAN_HLEN);
27d7ff46
ACM		 3874 skb_copy_to_linear_data(skb, skb->data + 4, 4);
3875 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
3876 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
f7b65d70 3877 tag = (u16 *)(skb->data + 12);
1da177e4
LT		 3878 /*
3879 * first two bytes = ETH_P_8021Q (0x8100)
3880 * second two bytes = VLANID
3881 */
3882 *tag = __constant_htons(ETH_P_8021Q);
f7b65d70 3883 *(tag + 1) = htons(vlan_tx_tag_get(skb));
1da177e4
LT		 3884 }
3885#endif
f7b65d70
FP		 3886 return ((struct qeth_hdr *)
3887 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3888}
3889
4d284cac 3890static void
f7b65d70
FP		 3891__qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3892{
3893 if (orig_skb != new_skb)
3894 dev_kfree_skb_any(new_skb);
3895}
3896
4d284cac 3897static struct sk_buff *
f7b65d70
FP		 3898qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3899 struct qeth_hdr **hdr, int ipv)
3900{
2d36c16e 3901 struct sk_buff *new_skb, *new_skb2;
f7b65d70
FP		 3902
3903 QETH_DBF_TEXT(trace, 6, "prepskb");
2d36c16e
FB		 3904 new_skb = skb;
3905 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
3906 if (!new_skb)
f7b65d70 3907 return NULL;
2d36c16e
FB		 3908 new_skb2 = qeth_realloc_headroom(card, new_skb,
3909 sizeof(struct qeth_hdr));
3910 if (!new_skb2) {
3911 __qeth_free_new_skb(skb, new_skb);
3912 return NULL;
3913 }
3914 if (new_skb != skb)
3915 __qeth_free_new_skb(new_skb2, new_skb);
3916 new_skb = new_skb2;
f7b65d70
FP		 3917 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3918 if (*hdr == NULL) {
3919 __qeth_free_new_skb(skb, new_skb);
3920 return NULL;
3921 }
3922 return new_skb;
1da177e4
LT		 3923}
3924
3925static inline u8
3926qeth_get_qeth_hdr_flags4(int cast_type)
3927{
3928 if (cast_type == RTN_MULTICAST)
3929 return QETH_CAST_MULTICAST;
3930 if (cast_type == RTN_BROADCAST)
3931 return QETH_CAST_BROADCAST;
3932 return QETH_CAST_UNICAST;
3933}
3934
3935static inline u8
3936qeth_get_qeth_hdr_flags6(int cast_type)
3937{
3938 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3939 if (cast_type == RTN_MULTICAST)
3940 return ct | QETH_CAST_MULTICAST;
3941 if (cast_type == RTN_ANYCAST)
3942 return ct | QETH_CAST_ANYCAST;
3943 if (cast_type == RTN_BROADCAST)
3944 return ct | QETH_CAST_BROADCAST;
3945 return ct | QETH_CAST_UNICAST;
3946}
3947
4d284cac 3948static void
1da177e4
LT		 3949qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3950 struct sk_buff *skb)
3951{
3952 __u16 hdr_mac;
3953
3954 if (!memcmp(skb->data+QETH_HEADER_SIZE,
3955 skb->dev->broadcast,6)) { /* broadcast? */
3956 *(__u32 *)hdr->hdr.l2.flags |=
3957 QETH_LAYER2_FLAG_BROADCAST << 8;
3958 return;
3959 }
3960 hdr_mac=*((__u16*)skb->data);
3961 /* tr multicast? */
3962 switch (card->info.link_type) {
3963 case QETH_LINK_TYPE_HSTR:
3964 case QETH_LINK_TYPE_LANE_TR:
3965 if ((hdr_mac == QETH_TR_MAC_NC) ||
3966 (hdr_mac == QETH_TR_MAC_C) )
3967 *(__u32 *)hdr->hdr.l2.flags |=
3968 QETH_LAYER2_FLAG_MULTICAST << 8;
3969 else
3970 *(__u32 *)hdr->hdr.l2.flags |=
3971 QETH_LAYER2_FLAG_UNICAST << 8;
3972 break;
3973 /* eth or so multicast? */
3974 default:
3975 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3976 (hdr_mac==QETH_ETH_MAC_V6) )
3977 *(__u32 *)hdr->hdr.l2.flags |=
3978 QETH_LAYER2_FLAG_MULTICAST << 8;
3979 else
3980 *(__u32 *)hdr->hdr.l2.flags |=
3981 QETH_LAYER2_FLAG_UNICAST << 8;
3982 }
3983}
3984
4d284cac 3985static void
1da177e4
LT		 3986qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3987 struct sk_buff *skb, int cast_type)
3988{
3989 memset(hdr, 0, sizeof(struct qeth_hdr));
3990 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
3991
3992 /* set byte 0 to "0x02" and byte 3 to casting flags */
3993 if (cast_type==RTN_MULTICAST)
3994 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
3995 else if (cast_type==RTN_BROADCAST)
3996 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
3997 else
3998 qeth_layer2_get_packet_type(card, hdr, skb);
3999
4000 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4001#ifdef CONFIG_QETH_VLAN
4002 /* VSWITCH relies on the VLAN
4003 * information to be present in
4004 * the QDIO header */
4005 if ((card->vlangrp != NULL) &&
4006 vlan_tx_tag_present(skb)) {
4007 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4008 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4009 }
4010#endif
4011}
4012
4013void
4014qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4015 struct sk_buff *skb, int ipv, int cast_type)
4016{
4017 QETH_DBF_TEXT(trace, 6, "fillhdr");
4018
4019 memset(hdr, 0, sizeof(struct qeth_hdr));
4020 if (card->options.layer2) {
4021 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4022 return;
4023 }
4024 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4025 hdr->hdr.l3.ext_flags = 0;
4026#ifdef CONFIG_QETH_VLAN
4027 /*
4028 * before we're going to overwrite this location with next hop ip.
4029 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4030 */
4031 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4032 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4033 QETH_HDR_EXT_VLAN_FRAME :
4034 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4035 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4036 }
4037#endif /* CONFIG_QETH_VLAN */
4038 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4039 if (ipv == 4) { /* IPv4 */
4040 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4041 memset(hdr->hdr.l3.dest_addr, 0, 12);
4042 if ((skb->dst) && (skb->dst->neighbour)) {
4043 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4044 *((u32 *) skb->dst->neighbour->primary_key);
4045 } else {
4046 /* fill in destination address used in ip header */
eddc9ec5
ACM		 4047 *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4048 ip_hdr(skb)->daddr;
1da177e4
LT		 4049 }
4050 } else if (ipv == 6) { /* IPv6 or passthru */
4051 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4052 if ((skb->dst) && (skb->dst->neighbour)) {
4053 memcpy(hdr->hdr.l3.dest_addr,
4054 skb->dst->neighbour->primary_key, 16);
4055 } else {
4056 /* fill in destination address used in ip header */
0660e03f
ACM		 4057 memcpy(hdr->hdr.l3.dest_addr,
4058 &ipv6_hdr(skb)->daddr, 16);
1da177e4
LT		 4059 }
4060 } else { /* passthrough */
e23dd9cd 4061 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
e82b0f2c 4062 !memcmp(skb->data + sizeof(struct qeth_hdr) +
9a455819
FP		 4063 sizeof(__u16), skb->dev->broadcast, 6)) {
4064 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4065 QETH_HDR_PASSTHRU;
e23dd9cd 4066 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
1da177e4 4067 skb->dev->broadcast, 6)) { /* broadcast? */
e23dd9cd
FP		 4068 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4069 QETH_HDR_PASSTHRU;
1da177e4
LT		 4070 } else {
4071 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4072 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4073 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4074 }
4075 }
4076}
4077
4d284cac 4078static void
1da177e4 4079__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
05e08a2a 4080 int is_tso, int *next_element_to_fill)
1da177e4
LT		 4081{
4082 int length = skb->len;
4083 int length_here;
4084 int element;
4085 char *data;
05e08a2a 4086 int first_lap ;
1da177e4
LT		 4087
4088 element = *next_element_to_fill;
4089 data = skb->data;
05e08a2a
FP		 4090 first_lap = (is_tso == 0 ? 1 : 0);
4091
1da177e4
LT		 4092 while (length > 0) {
4093 /* length_here is the remaining amount of data in this page */
4094 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4095 if (length < length_here)
4096 length_here = length;
05e08a2a 4097
1da177e4
LT		 4098 buffer->element[element].addr = data;
4099 buffer->element[element].length = length_here;
4100 length -= length_here;
05e08a2a 4101 if (!length) {
1da177e4
LT		 4102 if (first_lap)
4103 buffer->element[element].flags = 0;
4104 else
4105 buffer->element[element].flags =
4106 SBAL_FLAGS_LAST_FRAG;
4107 } else {
4108 if (first_lap)
4109 buffer->element[element].flags =
4110 SBAL_FLAGS_FIRST_FRAG;
4111 else
4112 buffer->element[element].flags =
4113 SBAL_FLAGS_MIDDLE_FRAG;
4114 }
4115 data += length_here;
4116 element++;
4117 first_lap = 0;
4118 }
4119 *next_element_to_fill = element;
4120}
4121
4d284cac 4122static int
1da177e4
LT		 4123qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4124 struct qeth_qdio_out_buffer *buf,
4125 struct sk_buff *skb)
4126{
4127 struct qdio_buffer *buffer;
05e08a2a
FP		 4128 struct qeth_hdr_tso *hdr;
4129 int flush_cnt = 0, hdr_len, large_send = 0;
1da177e4
LT		 4130
4131 QETH_DBF_TEXT(trace, 6, "qdfillbf");
05e08a2a 4132
1da177e4
LT		 4133 buffer = buf->buffer;
4134 atomic_inc(&skb->users);
4135 skb_queue_tail(&buf->skb_list, skb);
05e08a2a
FP		 4136
4137 hdr = (struct qeth_hdr_tso *) skb->data;
4138 /*check first on TSO ....*/
4139 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4140 int element = buf->next_element_to_fill;
4141
4142 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4143 /*fill first buffer entry only with header information */
4144 buffer->element[element].addr = skb->data;
4145 buffer->element[element].length = hdr_len;
4146 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4147 buf->next_element_to_fill++;
4148 skb->data += hdr_len;
4149 skb->len -= hdr_len;
4150 large_send = 1;
4151 }
1da177e4 4152 if (skb_shinfo(skb)->nr_frags == 0)
05e08a2a 4153 __qeth_fill_buffer(skb, buffer, large_send,
1da177e4
LT		 4154 (int *)&buf->next_element_to_fill);
4155 else
05e08a2a 4156 __qeth_fill_buffer_frag(skb, buffer, large_send,
1da177e4
LT		 4157 (int *)&buf->next_element_to_fill);
4158
4159 if (!queue->do_pack) {
4160 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4161 /* set state to PRIMED -> will be flushed */
4162 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4163 flush_cnt = 1;
4164 } else {
4165 QETH_DBF_TEXT(trace, 6, "fillbfpa");
09d2d38a
FP		 4166 if (queue->card->options.performance_stats)
4167 queue->card->perf_stats.skbs_sent_pack++;
1da177e4
LT		 4168 if (buf->next_element_to_fill >=
4169 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4170 /*
4171 * packed buffer if full -> set state PRIMED
4172 * -> will be flushed
4173 */
4174 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4175 flush_cnt = 1;
4176 }
4177 }
4178 return flush_cnt;
4179}
4180
4d284cac 4181static int
1da177e4
LT		 4182qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4183 struct sk_buff *skb, struct qeth_hdr *hdr,
4184 int elements_needed,
4185 struct qeth_eddp_context *ctx)
4186{
4187 struct qeth_qdio_out_buffer *buffer;
4188 int buffers_needed = 0;
4189 int flush_cnt = 0;
4190 int index;
4191
4192 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4193
4194 /* spin until we get the queue ... */
973bd993
MS		 4195 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4196 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4197 /* ... now we've got the queue */
4198 index = queue->next_buf_to_fill;
4199 buffer = &queue->bufs[queue->next_buf_to_fill];
4200 /*
4201 * check if buffer is empty to make sure that we do not 'overtake'
4202 * ourselves and try to fill a buffer that is already primed
4203 */
f7b65d70
FP		 4204 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4205 goto out;
1da177e4
LT		 4206 if (ctx == NULL)
4207 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4208 QDIO_MAX_BUFFERS_PER_Q;
4209 else {
4210 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
f7b65d70
FP		 4211 if (buffers_needed < 0)
4212 goto out;
1da177e4
LT		 4213 queue->next_buf_to_fill =
4214 (queue->next_buf_to_fill + buffers_needed) %
4215 QDIO_MAX_BUFFERS_PER_Q;
4216 }
4217 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4218 if (ctx == NULL) {
4219 qeth_fill_buffer(queue, buffer, skb);
4220 qeth_flush_buffers(queue, 0, index, 1);
4221 } else {
4222 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4223 WARN_ON(buffers_needed != flush_cnt);
4224 qeth_flush_buffers(queue, 0, index, flush_cnt);
4225 }
4226 return 0;
f7b65d70
FP		 4227out:
4228 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4229 return -EBUSY;
1da177e4
LT		 4230}
4231
4d284cac 4232static int
1da177e4
LT		 4233qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4234 struct sk_buff *skb, struct qeth_hdr *hdr,
4235 int elements_needed, struct qeth_eddp_context *ctx)
4236{
4237 struct qeth_qdio_out_buffer *buffer;
4238 int start_index;
4239 int flush_count = 0;
4240 int do_pack = 0;
4241 int tmp;
4242 int rc = 0;
4243
4244 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4245
4246 /* spin until we get the queue ... */
973bd993
MS		 4247 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4248 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4249 start_index = queue->next_buf_to_fill;
4250 buffer = &queue->bufs[queue->next_buf_to_fill];
4251 /*
4252 * check if buffer is empty to make sure that we do not 'overtake'
4253 * ourselves and try to fill a buffer that is already primed
4254 */
f7b65d70 4255 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
1da177e4
LT		 4256 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4257 return -EBUSY;
4258 }
4259 /* check if we need to switch packing state of this queue */
4260 qeth_switch_to_packing_if_needed(queue);
4261 if (queue->do_pack){
4262 do_pack = 1;
4263 if (ctx == NULL) {
4264 /* does packet fit in current buffer? */
4265 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4266 buffer->next_element_to_fill) < elements_needed){
4267 /* ... no -> set state PRIMED */
4268 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4269 flush_count++;
4270 queue->next_buf_to_fill =
4271 (queue->next_buf_to_fill + 1) %
4272 QDIO_MAX_BUFFERS_PER_Q;
4273 buffer = &queue->bufs[queue->next_buf_to_fill];
4274 /* we did a step forward, so check buffer state
4275 * again */
4276 if (atomic_read(&buffer->state) !=
4277 QETH_QDIO_BUF_EMPTY){
1da177e4
LT		 4278 qeth_flush_buffers(queue, 0, start_index, flush_count);
4279 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4280 return -EBUSY;
4281 }
4282 }
4283 } else {
4284 /* check if we have enough elements (including following
4285 * free buffers) to handle eddp context */
4286 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4287 printk("eddp tx_dropped 1\n");
1da177e4
LT		 4288 rc = -EBUSY;
4289 goto out;
4290 }
4291 }
4292 }
4293 if (ctx == NULL)
4294 tmp = qeth_fill_buffer(queue, buffer, skb);
4295 else {
4296 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4297 if (tmp < 0) {
4298 printk("eddp tx_dropped 2\n");
1da177e4
LT		 4299 rc = - EBUSY;
4300 goto out;
4301 }
4302 }
4303 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4304 QDIO_MAX_BUFFERS_PER_Q;
4305 flush_count += tmp;
4306out:
4307 if (flush_count)
4308 qeth_flush_buffers(queue, 0, start_index, flush_count);
d805d7c6 4309 else if (!atomic_read(&queue->set_pci_flags_count))
9163bb2e 4310 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
1da177e4
LT		 4311 /*
4312 * queue->state will go from LOCKED -> UNLOCKED or from
4313 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4314 * (switch packing state or flush buffer to get another pci flag out).
4315 * In that case we will enter this loop
4316 */
4317 while (atomic_dec_return(&queue->state)){
4318 flush_count = 0;
4319 start_index = queue->next_buf_to_fill;
4320 /* check if we can go back to non-packing state */
4321 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4322 /*
4323 * check if we need to flush a packing buffer to get a pci
4324 * flag out on the queue
4325 */
4326 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4327 flush_count += qeth_flush_buffers_on_no_pci(queue);
4328 if (flush_count)
4329 qeth_flush_buffers(queue, 0, start_index, flush_count);
4330 }
4331 /* at this point the queue is UNLOCKED again */
09d2d38a 4332 if (queue->card->options.performance_stats && do_pack)
1da177e4 4333 queue->card->perf_stats.bufs_sent_pack += flush_count;
1da177e4
LT		 4334
4335 return rc;
4336}
4337
4d284cac 4338static int
e82b0f2c 4339qeth_get_elements_no(struct qeth_card *card, void *hdr,
9cb90de8 4340 struct sk_buff *skb, int elems)
05e08a2a
FP		 4341{
4342 int elements_needed = 0;
4343
f7b65d70 4344 if (skb_shinfo(skb)->nr_frags > 0)
05e08a2a 4345 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
f7b65d70 4346 if (elements_needed == 0)
05e08a2a
FP		 4347 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4348 + skb->len) >> PAGE_SHIFT);
9cb90de8 4349 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
f7b65d70
FP		 4350 PRINT_ERR("Invalid size of IP packet "
4351 "(Number=%d / Length=%d). Discarded.\n",
9cb90de8 4352 (elements_needed+elems), skb->len);
05e08a2a
FP		 4353 return 0;
4354 }
4355 return elements_needed;
4356}
4357
f7b65d70 4358
4d284cac 4359static int
1da177e4
LT		 4360qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4361{
4362 int ipv = 0;
4363 int cast_type;
4364 struct qeth_qdio_out_q *queue;
f3d242e8 4365 struct qeth_hdr *hdr = NULL;
1da177e4
LT		 4366 int elements_needed = 0;
4367 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4368 struct qeth_eddp_context *ctx = NULL;
95f6b5a1 4369 int tx_bytes = skb->len;
ba1aa084 4370 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
7967168c 4371 unsigned short tso_size = skb_shinfo(skb)->gso_size;
f7b65d70 4372 struct sk_buff *new_skb, *new_skb2;
1da177e4
LT		 4373 int rc;
4374
4375 QETH_DBF_TEXT(trace, 6, "sendpkt");
4376
f7b65d70
FP		 4377 new_skb = skb;
4378 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4379 (skb->protocol == htons(ETH_P_IPV6)))
4380 return -EPERM;
4381 cast_type = qeth_get_cast_type(card, skb);
4382 if ((cast_type == RTN_BROADCAST) &&
4383 (card->info.broadcast_capable == 0))
4384 return -EPERM;
4385 queue = card->qdio.out_qs
4386 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
1da177e4
LT		 4387 if (!card->options.layer2) {
4388 ipv = qeth_get_ip_version(skb);
4389 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
f7b65d70
FP		 4390 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4391 if (!new_skb)
4392 return -ENOMEM;
e23dd9cd 4393 if(card->dev->type == ARPHRD_IEEE802_TR){
f7b65d70 4394 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
e23dd9cd 4395 } else {
f7b65d70 4396 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
e23dd9cd 4397 }
1da177e4
LT		 4398 }
4399 }
89114afd 4400 if (skb_is_gso(skb))
1da177e4 4401 large_send = card->options.large_send;
f7b65d70
FP		 4402 /* check on OSN device*/
4403 if (card->info.type == QETH_CARD_TYPE_OSN)
4404 hdr = (struct qeth_hdr *)new_skb->data;
4405 /*are we able to do TSO ? */
1da177e4
LT		 4406 if ((large_send == QETH_LARGE_SEND_TSO) &&
4407 (cast_type == RTN_UNSPEC)) {
f7b65d70 4408 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
05e08a2a 4409 if (rc) {
f7b65d70
FP		 4410 __qeth_free_new_skb(skb, new_skb);
4411 return rc;
e82b0f2c 4412 }
05e08a2a 4413 elements_needed++;
f7b65d70
FP		 4414 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4415 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4416 if (!new_skb2) {
4417 __qeth_free_new_skb(skb, new_skb);
4418 return -EINVAL;
05e08a2a 4419 }
f7b65d70
FP		 4420 if (new_skb != skb)
4421 __qeth_free_new_skb(new_skb2, new_skb);
4422 new_skb = new_skb2;
4423 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
1da177e4 4424 }
1da177e4 4425 if (large_send == QETH_LARGE_SEND_EDDP) {
f7b65d70 4426 ctx = qeth_eddp_create_context(card, new_skb, hdr);
1da177e4 4427 if (ctx == NULL) {
f7b65d70 4428 __qeth_free_new_skb(skb, new_skb);
1da177e4
LT		 4429 PRINT_WARN("could not create eddp context\n");
4430 return -EINVAL;
4431 }
4432 } else {
f7b65d70 4433 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
9cb90de8 4434 elements_needed);
f7b65d70
FP		 4435 if (!elems) {
4436 __qeth_free_new_skb(skb, new_skb);
1da177e4 4437 return -EINVAL;
f7b65d70 4438 }
9cb90de8 4439 elements_needed += elems;
1da177e4
LT		 4440 }
4441
4442 if (card->info.type != QETH_CARD_TYPE_IQD)
f7b65d70 4443 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
1da177e4
LT		 4444 elements_needed, ctx);
4445 else
f7b65d70 4446 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
1da177e4 4447 elements_needed, ctx);
f7b65d70 4448 if (!rc) {
1da177e4 4449 card->stats.tx_packets++;
95f6b5a1 4450 card->stats.tx_bytes += tx_bytes;
f7b65d70
FP		 4451 if (new_skb != skb)
4452 dev_kfree_skb_any(skb);
09d2d38a
FP		 4453 if (card->options.performance_stats) {
4454 if (tso_size &&
4455 !(large_send == QETH_LARGE_SEND_NO)) {
4456 card->perf_stats.large_send_bytes += tx_bytes;
4457 card->perf_stats.large_send_cnt++;
4458 }
4459 if (nr_frags > 0) {
4460 card->perf_stats.sg_skbs_sent++;
4461 /* nr_frags + skb->data */
4462 card->perf_stats.sg_frags_sent +=
4463 nr_frags + 1;
4464 }
1da177e4 4465 }
f7b65d70
FP		 4466 } else {
4467 card->stats.tx_dropped++;
4468 __qeth_free_new_skb(skb, new_skb);
1da177e4
LT		 4469 }
4470 if (ctx != NULL) {
4471 /* drop creator's reference */
4472 qeth_eddp_put_context(ctx);
4473 /* free skb; it's not referenced by a buffer */
f7b65d70
FP		 4474 if (!rc)
4475 dev_kfree_skb_any(new_skb);
1da177e4
LT		 4476 }
4477 return rc;
4478}
4479
4480static int
4481qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4482{
4483 struct qeth_card *card = (struct qeth_card *) dev->priv;
4484 int rc = 0;
4485
4486 switch(regnum){
4487 case MII_BMCR: /* Basic mode control register */
4488 rc = BMCR_FULLDPLX;
4489 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
500f83ab 4490 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
1da177e4
LT		 4491 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4492 rc |= BMCR_SPEED100;
4493 break;
4494 case MII_BMSR: /* Basic mode status register */
4495 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4496 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4497 BMSR_100BASE4;
4498 break;
4499 case MII_PHYSID1: /* PHYS ID 1 */
4500 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4501 dev->dev_addr[2];
4502 rc = (rc >> 5) & 0xFFFF;
4503 break;
4504 case MII_PHYSID2: /* PHYS ID 2 */
4505 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4506 break;
4507 case MII_ADVERTISE: /* Advertisement control reg */
4508 rc = ADVERTISE_ALL;
4509 break;
4510 case MII_LPA: /* Link partner ability reg */
4511 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4512 LPA_100BASE4 | LPA_LPACK;
4513 break;
4514 case MII_EXPANSION: /* Expansion register */
4515 break;
4516 case MII_DCOUNTER: /* disconnect counter */
4517 break;
4518 case MII_FCSCOUNTER: /* false carrier counter */
4519 break;
4520 case MII_NWAYTEST: /* N-way auto-neg test register */
4521 break;
4522 case MII_RERRCOUNTER: /* rx error counter */
4523 rc = card->stats.rx_errors;
4524 break;
4525 case MII_SREVISION: /* silicon revision */
4526 break;
4527 case MII_RESV1: /* reserved 1 */
4528 break;
4529 case MII_LBRERROR: /* loopback, rx, bypass error */
4530 break;
4531 case MII_PHYADDR: /* physical address */
4532 break;
4533 case MII_RESV2: /* reserved 2 */
4534 break;
4535 case MII_TPISTATUS: /* TPI status for 10mbps */
4536 break;
4537 case MII_NCONFIG: /* network interface config */
4538 break;
4539 default:
1da177e4
LT		 4540 break;
4541 }
4542 return rc;
4543}
4544
1da177e4 4545
4d284cac 4546static const char *
1da177e4
LT		 4547qeth_arp_get_error_cause(int *rc)
4548{
4549 switch (*rc) {
4550 case QETH_IPA_ARP_RC_FAILED:
4551 *rc = -EIO;
4552 return "operation failed";
4553 case QETH_IPA_ARP_RC_NOTSUPP:
4554 *rc = -EOPNOTSUPP;
4555 return "operation not supported";
4556 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4557 *rc = -EINVAL;
4558 return "argument out of range";
4559 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4560 *rc = -EOPNOTSUPP;
4561 return "query operation not supported";
4562 case QETH_IPA_ARP_RC_Q_NO_DATA:
4563 *rc = -ENOENT;
4564 return "no query data available";
4565 default:
4566 return "unknown error";
4567 }
4568}
4569
4570static int
4571qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4572 __u16, long);
4573
4574static int
4575qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4576{
4577 int tmp;
4578 int rc;
4579
4580 QETH_DBF_TEXT(trace,3,"arpstnoe");
4581
f3d242e8
FP		 4582 /*
4583 * currently GuestLAN only supports the ARP assist function
4584 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4585 * thus we say EOPNOTSUPP for this ARP function
4586 */
1da177e4
LT		 4587 if (card->info.guestlan)
4588 return -EOPNOTSUPP;
4589 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4590 PRINT_WARN("ARP processing not supported "
4591 "on %s!\n", QETH_CARD_IFNAME(card));
4592 return -EOPNOTSUPP;
4593 }
4594 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4595 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4596 no_entries);
4597 if (rc) {
4598 tmp = rc;
4599 PRINT_WARN("Could not set number of ARP entries on %s: "
4600 "%s (0x%x/%d)\n",
4601 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4602 tmp, tmp);
4603 }
4604 return rc;
4605}
4606
4d284cac 4607static void
1da177e4
LT		 4608qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4609 struct qeth_arp_query_data *qdata,
4610 int entry_size, int uentry_size)
4611{
4612 char *entry_ptr;
4613 char *uentry_ptr;
4614 int i;
4615
4616 entry_ptr = (char *)&qdata->data;
4617 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4618 for (i = 0; i < qdata->no_entries; ++i){
4619 /* strip off 32 bytes "media specific information" */
4620 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4621 entry_ptr += entry_size;
4622 uentry_ptr += uentry_size;
4623 }
4624}
4625
4626static int
4627qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4628 unsigned long data)
4629{
4630 struct qeth_ipa_cmd *cmd;
4631 struct qeth_arp_query_data *qdata;
4632 struct qeth_arp_query_info *qinfo;
4633 int entry_size;
4634 int uentry_size;
4635 int i;
4636
4637 QETH_DBF_TEXT(trace,4,"arpquecb");
4638
4639 qinfo = (struct qeth_arp_query_info *) reply->param;
4640 cmd = (struct qeth_ipa_cmd *) data;
4641 if (cmd->hdr.return_code) {
4642 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4643 return 0;
4644 }
4645 if (cmd->data.setassparms.hdr.return_code) {
4646 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4647 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4648 return 0;
4649 }
4650 qdata = &cmd->data.setassparms.data.query_arp;
4651 switch(qdata->reply_bits){
4652 case 5:
4653 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4654 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4655 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4656 break;
4657 case 7:
4658 /* fall through to default */
4659 default:
4660 /* tr is the same as eth -> entry7 */
4661 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4662 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4663 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4664 break;
4665 }
4666 /* check if there is enough room in userspace */
4667 if ((qinfo->udata_len - qinfo->udata_offset) <
4668 qdata->no_entries * uentry_size){
4669 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4670 cmd->hdr.return_code = -ENOMEM;
4671 PRINT_WARN("query ARP user space buffer is too small for "
4672 "the returned number of ARP entries. "
4673 "Aborting query!\n");
4674 goto out_error;
4675 }
4676 QETH_DBF_TEXT_(trace, 4, "anore%i",
4677 cmd->data.setassparms.hdr.number_of_replies);
4678 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4679 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4680
4681 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4682 /* strip off "media specific information" */
4683 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4684 uentry_size);
4685 } else
4686 /*copy entries to user buffer*/
4687 memcpy(qinfo->udata + qinfo->udata_offset,
4688 (char *)&qdata->data, qdata->no_entries*uentry_size);
4689
4690 qinfo->no_entries += qdata->no_entries;
4691 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4692 /* check if all replies received ... */
4693 if (cmd->data.setassparms.hdr.seq_no <
4694 cmd->data.setassparms.hdr.number_of_replies)
4695 return 1;
4696 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4697 /* keep STRIP_ENTRIES flag so the user program can distinguish
4698 * stripped entries from normal ones */
4699 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4700 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4701 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4702 return 0;
4703out_error:
4704 i = 0;
4705 memcpy(qinfo->udata, &i, 4);
4706 return 0;
4707}
4708
4709static int
4710qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4711 int len, int (*reply_cb)(struct qeth_card *,
4712 struct qeth_reply *,
4713 unsigned long),
4714 void *reply_param)
4715{
4716 QETH_DBF_TEXT(trace,4,"sendarp");
4717
4718 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4719 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4720 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4721 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4722 reply_cb, reply_param);
4723}
4724
4725static int
4726qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4727 int len, int (*reply_cb)(struct qeth_card *,
4728 struct qeth_reply *,
4729 unsigned long),
4730 void *reply_param)
4731{
4732 u16 s1, s2;
4733
4734 QETH_DBF_TEXT(trace,4,"sendsnmp");
4735
4736 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4737 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4738 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4739 /* adjust PDU length fields in IPA_PDU_HEADER */
4740 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4741 s2 = (u32) len;
4742 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4743 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4744 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4745 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4746 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4747 reply_cb, reply_param);
4748}
4749
4750static struct qeth_cmd_buffer *
4751qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4752 __u16, __u16, enum qeth_prot_versions);
4753static int
d2c993d8 4754qeth_arp_query(struct qeth_card *card, char __user *udata)
1da177e4
LT		 4755{
4756 struct qeth_cmd_buffer *iob;
4757 struct qeth_arp_query_info qinfo = {0, };
4758 int tmp;
4759 int rc;
4760
4761 QETH_DBF_TEXT(trace,3,"arpquery");
4762
1da177e4
LT		 4763 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4764 IPA_ARP_PROCESSING)) {
4765 PRINT_WARN("ARP processing not supported "
4766 "on %s!\n", QETH_CARD_IFNAME(card));
4767 return -EOPNOTSUPP;
4768 }
4769 /* get size of userspace buffer and mask_bits -> 6 bytes */
4770 if (copy_from_user(&qinfo, udata, 6))
4771 return -EFAULT;
88abaab4 4772 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
1da177e4 4773 return -ENOMEM;
1da177e4
LT		 4774 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4775 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4776 IPA_CMD_ASS_ARP_QUERY_INFO,
4777 sizeof(int),QETH_PROT_IPV4);
4778
4779 rc = qeth_send_ipa_arp_cmd(card, iob,
4780 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4781 qeth_arp_query_cb, (void *)&qinfo);
4782 if (rc) {
4783 tmp = rc;
4784 PRINT_WARN("Error while querying ARP cache on %s: %s "
4785 "(0x%x/%d)\n",
4786 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4787 tmp, tmp);
3a6b95c8
HC		 4788 if (copy_to_user(udata, qinfo.udata, 4))
4789 rc = -EFAULT;
1da177e4 4790 } else {
3a6b95c8
HC		 4791 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4792 rc = -EFAULT;
1da177e4
LT		 4793 }
4794 kfree(qinfo.udata);
4795 return rc;
4796}
4797
4798/**
4799 * SNMP command callback
4800 */
4801static int
4802qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4803 unsigned long sdata)
4804{
4805 struct qeth_ipa_cmd *cmd;
4806 struct qeth_arp_query_info *qinfo;
4807 struct qeth_snmp_cmd *snmp;
4808 unsigned char *data;
4809 __u16 data_len;
4810
4811 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4812
4813 cmd = (struct qeth_ipa_cmd *) sdata;
4814 data = (unsigned char *)((char *)cmd - reply->offset);
4815 qinfo = (struct qeth_arp_query_info *) reply->param;
4816 snmp = &cmd->data.setadapterparms.data.snmp;
4817
4818 if (cmd->hdr.return_code) {
4819 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4820 return 0;
4821 }
4822 if (cmd->data.setadapterparms.hdr.return_code) {
4823 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4824 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4825 return 0;
4826 }
4827 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4828 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4829 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4830 else
4831 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4832
4833 /* check if there is enough room in userspace */
4834 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4835 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4836 cmd->hdr.return_code = -ENOMEM;
4837 return 0;
4838 }
4839 QETH_DBF_TEXT_(trace, 4, "snore%i",
4840 cmd->data.setadapterparms.hdr.used_total);
4841 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4842 /*copy entries to user buffer*/
4843 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4844 memcpy(qinfo->udata + qinfo->udata_offset,
4845 (char *)snmp,
4846 data_len + offsetof(struct qeth_snmp_cmd,data));
4847 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4848 } else {
4849 memcpy(qinfo->udata + qinfo->udata_offset,
4850 (char *)&snmp->request, data_len);
4851 }
4852 qinfo->udata_offset += data_len;
4853 /* check if all replies received ... */
4854 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4855 cmd->data.setadapterparms.hdr.used_total);
4856 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4857 cmd->data.setadapterparms.hdr.seq_no);
4858 if (cmd->data.setadapterparms.hdr.seq_no <
4859 cmd->data.setadapterparms.hdr.used_total)
4860 return 1;
4861 return 0;
4862}
4863
4864static struct qeth_cmd_buffer *
4865qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4866 enum qeth_prot_versions );
4867
4868static struct qeth_cmd_buffer *
4869qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4870{
4871 struct qeth_cmd_buffer *iob;
4872 struct qeth_ipa_cmd *cmd;
4873
4874 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4875 QETH_PROT_IPV4);
4876 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4877 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4878 cmd->data.setadapterparms.hdr.command_code = command;
4879 cmd->data.setadapterparms.hdr.used_total = 1;
4880 cmd->data.setadapterparms.hdr.seq_no = 1;
4881
4882 return iob;
4883}
4884
4885/**
4886 * function to send SNMP commands to OSA-E card
4887 */
4888static int
d2c993d8 4889qeth_snmp_command(struct qeth_card *card, char __user *udata)
1da177e4
LT		 4890{
4891 struct qeth_cmd_buffer *iob;
4892 struct qeth_ipa_cmd *cmd;
4893 struct qeth_snmp_ureq *ureq;
4894 int req_len;
4895 struct qeth_arp_query_info qinfo = {0, };
4896 int rc = 0;
4897
4898 QETH_DBF_TEXT(trace,3,"snmpcmd");
4899
4900 if (card->info.guestlan)
4901 return -EOPNOTSUPP;
4902
4903 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4904 (!card->options.layer2) ) {
4905 PRINT_WARN("SNMP Query MIBS not supported "
4906 "on %s!\n", QETH_CARD_IFNAME(card));
4907 return -EOPNOTSUPP;
4908 }
4909 /* skip 4 bytes (data_len struct member) to get req_len */
4910 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4911 return -EFAULT;
4912 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4913 if (!ureq) {
4914 QETH_DBF_TEXT(trace, 2, "snmpnome");
4915 return -ENOMEM;
4916 }
4917 if (copy_from_user(ureq, udata,
4918 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4919 kfree(ureq);
4920 return -EFAULT;
4921 }
4922 qinfo.udata_len = ureq->hdr.data_len;
88abaab4 4923 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
1da177e4
LT		 4924 kfree(ureq);
4925 return -ENOMEM;
4926 }
1da177e4
LT		 4927 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4928
4929 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4930 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4931 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4932 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4933 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4934 qeth_snmp_command_cb, (void *)&qinfo);
4935 if (rc)
4936 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4937 QETH_CARD_IFNAME(card), rc);
3a6b95c8
HC		 4938 else {
4939 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4940 rc = -EFAULT;
4941 }
1da177e4
LT		 4942
4943 kfree(ureq);
4944 kfree(qinfo.udata);
4945 return rc;
4946}
4947
4948static int
4949qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4950 unsigned long);
4951
4952static int
6c951b90
FP		 4953qeth_default_setadapterparms_cb(struct qeth_card *card,
4954 struct qeth_reply *reply,
4955 unsigned long data);
4956static int
1da177e4
LT		 4957qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4958 __u16, long,
4959 int (*reply_cb)
4960 (struct qeth_card *, struct qeth_reply *, unsigned long),
4961 void *reply_param);
4962
4963static int
4964qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4965{
4966 struct qeth_cmd_buffer *iob;
4967 char buf[16];
4968 int tmp;
4969 int rc;
4970
4971 QETH_DBF_TEXT(trace,3,"arpadent");
4972
4973 /*
f3d242e8
FP		 4974 * currently GuestLAN only supports the ARP assist function
4975 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
4976 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 4977 */
4978 if (card->info.guestlan)
4979 return -EOPNOTSUPP;
4980 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4981 PRINT_WARN("ARP processing not supported "
4982 "on %s!\n", QETH_CARD_IFNAME(card));
4983 return -EOPNOTSUPP;
4984 }
4985
4986 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4987 IPA_CMD_ASS_ARP_ADD_ENTRY,
4988 sizeof(struct qeth_arp_cache_entry),
4989 QETH_PROT_IPV4);
4990 rc = qeth_send_setassparms(card, iob,
4991 sizeof(struct qeth_arp_cache_entry),
4992 (unsigned long) entry,
4993 qeth_default_setassparms_cb, NULL);
4994 if (rc) {
4995 tmp = rc;
4996 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4997 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4998 "%s (0x%x/%d)\n",
4999 buf, QETH_CARD_IFNAME(card),
5000 qeth_arp_get_error_cause(&rc), tmp, tmp);
5001 }
5002 return rc;
5003}
5004
5005static int
5006qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5007{
5008 struct qeth_cmd_buffer *iob;
5009 char buf[16] = {0, };
5010 int tmp;
5011 int rc;
5012
5013 QETH_DBF_TEXT(trace,3,"arprment");
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_REMOVE_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 memcpy(buf, entry, 12);
5028 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5029 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5030 12,
5031 QETH_PROT_IPV4);
5032 rc = qeth_send_setassparms(card, iob,
5033 12, (unsigned long)buf,
5034 qeth_default_setassparms_cb, NULL);
5035 if (rc) {
5036 tmp = rc;
5037 memset(buf, 0, 16);
5038 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5039 PRINT_WARN("Could not delete 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_flush_cache(struct qeth_card *card)
5049{
5050 int rc;
5051 int tmp;
5052
5053 QETH_DBF_TEXT(trace,3,"arpflush");
5054
5055 /*
f3d242e8
FP		 5056 * currently GuestLAN only supports the ARP assist function
5057 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5058 * thus we say EOPNOTSUPP for this ARP function
5059 */
1da177e4
LT		 5060 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5061 return -EOPNOTSUPP;
5062 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5063 PRINT_WARN("ARP processing not supported "
5064 "on %s!\n", QETH_CARD_IFNAME(card));
5065 return -EOPNOTSUPP;
5066 }
5067 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5068 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5069 if (rc){
5070 tmp = rc;
5071 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5072 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5073 tmp, tmp);
5074 }
5075 return rc;
5076}
5077
5078static int
5079qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5080{
5081 struct qeth_card *card = (struct qeth_card *)dev->priv;
5082 struct qeth_arp_cache_entry arp_entry;
5083 struct mii_ioctl_data *mii_data;
5084 int rc = 0;
5085
5086 if (!card)
5087 return -ENODEV;
5088
5089 if ((card->state != CARD_STATE_UP) &&
5090 (card->state != CARD_STATE_SOFTSETUP))
5091 return -ENODEV;
5092
500f83ab
UB		 5093 if (card->info.type == QETH_CARD_TYPE_OSN)
5094 return -EPERM;
5095
1da177e4
LT		 5096 switch (cmd){
5097 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5098 if ( !capable(CAP_NET_ADMIN) ||
5099 (card->options.layer2) ) {
5100 rc = -EPERM;
5101 break;
5102 }
5103 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5104 break;
5105 case SIOC_QETH_ARP_QUERY_INFO:
5106 if ( !capable(CAP_NET_ADMIN) ||
5107 (card->options.layer2) ) {
5108 rc = -EPERM;
5109 break;
5110 }
5111 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5112 break;
5113 case SIOC_QETH_ARP_ADD_ENTRY:
5114 if ( !capable(CAP_NET_ADMIN) ||
5115 (card->options.layer2) ) {
5116 rc = -EPERM;
5117 break;
5118 }
5119 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5120 sizeof(struct qeth_arp_cache_entry)))
5121 rc = -EFAULT;
5122 else
5123 rc = qeth_arp_add_entry(card, &arp_entry);
5124 break;
5125 case SIOC_QETH_ARP_REMOVE_ENTRY:
5126 if ( !capable(CAP_NET_ADMIN) ||
5127 (card->options.layer2) ) {
5128 rc = -EPERM;
5129 break;
5130 }
5131 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5132 sizeof(struct qeth_arp_cache_entry)))
5133 rc = -EFAULT;
5134 else
5135 rc = qeth_arp_remove_entry(card, &arp_entry);
5136 break;
5137 case SIOC_QETH_ARP_FLUSH_CACHE:
5138 if ( !capable(CAP_NET_ADMIN) ||
5139 (card->options.layer2) ) {
5140 rc = -EPERM;
5141 break;
5142 }
5143 rc = qeth_arp_flush_cache(card);
5144 break;
5145 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5146 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5147 break;
5148 case SIOC_QETH_GET_CARD_TYPE:
5149 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5150 !card->info.guestlan)
5151 return 1;
5152 return 0;
5153 break;
5154 case SIOCGMIIPHY:
5155 mii_data = if_mii(rq);
5156 mii_data->phy_id = 0;
5157 break;
5158 case SIOCGMIIREG:
5159 mii_data = if_mii(rq);
5160 if (mii_data->phy_id != 0)
5161 rc = -EINVAL;
5162 else
5163 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5164 mii_data->reg_num);
5165 break;
1da177e4
LT		 5166 default:
5167 rc = -EOPNOTSUPP;
5168 }
5169 if (rc)
5170 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5171 return rc;
5172}
5173
5174static struct net_device_stats *
5175qeth_get_stats(struct net_device *dev)
5176{
5177 struct qeth_card *card;
5178
5179 card = (struct qeth_card *) (dev->priv);
5180
5181 QETH_DBF_TEXT(trace,5,"getstat");
5182
5183 return &card->stats;
5184}
5185
5186static int
5187qeth_change_mtu(struct net_device *dev, int new_mtu)
5188{
5189 struct qeth_card *card;
5190 char dbf_text[15];
5191
5192 card = (struct qeth_card *) (dev->priv);
5193
5194 QETH_DBF_TEXT(trace,4,"chgmtu");
5195 sprintf(dbf_text, "%8x", new_mtu);
5196 QETH_DBF_TEXT(trace,4,dbf_text);
5197
5198 if (new_mtu < 64)
5199 return -EINVAL;
5200 if (new_mtu > 65535)
5201 return -EINVAL;
5202 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5203 (!qeth_mtu_is_valid(card, new_mtu)))
5204 return -EINVAL;
5205 dev->mtu = new_mtu;
5206 return 0;
5207}
5208
5209#ifdef CONFIG_QETH_VLAN
5210static void
5211qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5212{
5213 struct qeth_card *card;
5214 unsigned long flags;
5215
5216 QETH_DBF_TEXT(trace,4,"vlanreg");
5217
5218 card = (struct qeth_card *) dev->priv;
5219 spin_lock_irqsave(&card->vlanlock, flags);
5220 card->vlangrp = grp;
5221 spin_unlock_irqrestore(&card->vlanlock, flags);
5222}
5223
4d284cac 5224static void
1da177e4
LT		 5225qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5226 unsigned short vid)
5227{
5228 int i;
5229 struct sk_buff *skb;
5230 struct sk_buff_head tmp_list;
5231
5232 skb_queue_head_init(&tmp_list);
91ebe2a9 5233 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
1da177e4
LT		 5234 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5235 while ((skb = skb_dequeue(&buf->skb_list))){
5236 if (vlan_tx_tag_present(skb) &&
5237 (vlan_tx_tag_get(skb) == vid)) {
5238 atomic_dec(&skb->users);
5239 dev_kfree_skb(skb);
5240 } else
5241 skb_queue_tail(&tmp_list, skb);
5242 }
5243 }
5244 while ((skb = skb_dequeue(&tmp_list)))
5245 skb_queue_tail(&buf->skb_list, skb);
5246}
5247
5248static void
5249qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5250{
5251 int i, j;
5252
5253 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5254 for (i = 0; i < card->qdio.no_out_queues; ++i){
5255 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5256 qeth_free_vlan_buffer(card, &card->qdio.
5257 out_qs[i]->bufs[j], vid);
5258 }
5259}
5260
5261static void
5262qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5263{
5264 struct in_device *in_dev;
5265 struct in_ifaddr *ifa;
5266 struct qeth_ipaddr *addr;
5267
5268 QETH_DBF_TEXT(trace, 4, "frvaddr4");
6c88ad2d 5269
1da177e4 5270 rcu_read_lock();
5c15bdec 5271 in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
1da177e4
LT		 5272 if (!in_dev)
5273 goto out;
5274 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5275 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5276 if (addr){
5277 addr->u.a4.addr = ifa->ifa_address;
5278 addr->u.a4.mask = ifa->ifa_mask;
5279 addr->type = QETH_IP_TYPE_NORMAL;
5280 if (!qeth_delete_ip(card, addr))
5281 kfree(addr);
5282 }
5283 }
5284out:
5285 rcu_read_unlock();
5286}
5287
5288static void
5289qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5290{
5291#ifdef CONFIG_QETH_IPV6
5292 struct inet6_dev *in6_dev;
5293 struct inet6_ifaddr *ifa;
5294 struct qeth_ipaddr *addr;
5295
5296 QETH_DBF_TEXT(trace, 4, "frvaddr6");
6c88ad2d 5297
5c15bdec 5298 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1da177e4
LT		 5299 if (!in6_dev)
5300 return;
5301 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5302 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5303 if (addr){
5304 memcpy(&addr->u.a6.addr, &ifa->addr,
5305 sizeof(struct in6_addr));
5306 addr->u.a6.pfxlen = ifa->prefix_len;
5307 addr->type = QETH_IP_TYPE_NORMAL;
5308 if (!qeth_delete_ip(card, addr))
5309 kfree(addr);
5310 }
5311 }
5312 in6_dev_put(in6_dev);
5313#endif /* CONFIG_QETH_IPV6 */
5314}
5315
6c88ad2d
FP		 5316static void
5317qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5318{
5319 if (card->options.layer2 || !card->vlangrp)
5320 return;
5321 qeth_free_vlan_addresses4(card, vid);
5322 qeth_free_vlan_addresses6(card, vid);
5323}
5324
508cc2b0
FP		 5325static int
5326qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5327 struct qeth_reply *reply,
5328 unsigned long data)
5329{
5330 struct qeth_ipa_cmd *cmd;
5331
5332 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5333 cmd = (struct qeth_ipa_cmd *) data;
5334 if (cmd->hdr.return_code) {
5335 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
e82b0f2c 5336 "Continuing\n",cmd->data.setdelvlan.vlan_id,
508cc2b0
FP		 5337 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5338 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5339 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5340 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5341 }
5342 return 0;
5343}
5344
5345static int
1da177e4
LT		 5346qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5347 enum qeth_ipa_cmds ipacmd)
5348{
1da177e4
LT		 5349 struct qeth_ipa_cmd *cmd;
5350 struct qeth_cmd_buffer *iob;
5351
5352 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5353 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5354 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5355 cmd->data.setdelvlan.vlan_id = i;
e82b0f2c 5356 return qeth_send_ipa_cmd(card, iob,
508cc2b0 5357 qeth_layer2_send_setdelvlan_cb, NULL);
1da177e4
LT		 5358}
5359
5360static void
5361qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5362{
5363 unsigned short i;
5364
5365 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5366
5367 if (!card->vlangrp)
5368 return;
5369 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5c15bdec 5370 if (vlan_group_get_device(card->vlangrp, i) == NULL)
1da177e4
LT		 5371 continue;
5372 if (clear)
5373 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5374 else
5375 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5376 }
5377}
5378
5379/*add_vid is layer 2 used only ....*/
5380static void
5381qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5382{
5383 struct qeth_card *card;
5384
5385 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5386
5387 card = (struct qeth_card *) dev->priv;
5388 if (!card->options.layer2)
5389 return;
5390 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5391}
5392
5393/*... kill_vid used for both modes*/
5394static void
5395qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5396{
5397 struct qeth_card *card;
5398 unsigned long flags;
5399
5400 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5401
5402 card = (struct qeth_card *) dev->priv;
5403 /* free all skbs for the vlan device */
5404 qeth_free_vlan_skbs(card, vid);
5405 spin_lock_irqsave(&card->vlanlock, flags);
5406 /* unregister IP addresses of vlan device */
6c88ad2d 5407 qeth_free_vlan_addresses(card, vid);
5c15bdec 5408 vlan_group_set_device(card->vlangrp, vid, NULL);
1da177e4
LT		 5409 spin_unlock_irqrestore(&card->vlanlock, flags);
5410 if (card->options.layer2)
5411 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5412 qeth_set_multicast_list(card->dev);
5413}
5414#endif
6c951b90
FP		 5415/**
5416 * Examine hardware response to SET_PROMISC_MODE
5417 */
5418static int
e82b0f2c 5419qeth_setadp_promisc_mode_cb(struct qeth_card *card,
6c951b90
FP		 5420 struct qeth_reply *reply,
5421 unsigned long data)
5422{
5423 struct qeth_ipa_cmd *cmd;
5424 struct qeth_ipacmd_setadpparms *setparms;
5425
5426 QETH_DBF_TEXT(trace,4,"prmadpcb");
5427
5428 cmd = (struct qeth_ipa_cmd *) data;
5429 setparms = &(cmd->data.setadapterparms);
e82b0f2c 5430
6c951b90 5431 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
e82b0f2c
JG		 5432 if (cmd->hdr.return_code) {
5433 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
6c951b90
FP		 5434 setparms->data.mode = SET_PROMISC_MODE_OFF;
5435 }
5436 card->info.promisc_mode = setparms->data.mode;
5437 return 0;
5438}
5439/*
5440 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5441 */
5442static void
5443qeth_setadp_promisc_mode(struct qeth_card *card)
5444{
5445 enum qeth_ipa_promisc_modes mode;
5446 struct net_device *dev = card->dev;
5447 struct qeth_cmd_buffer *iob;
5448 struct qeth_ipa_cmd *cmd;
5449
5450 QETH_DBF_TEXT(trace, 4, "setprom");
5451
5452 if (((dev->flags & IFF_PROMISC) &&
5453 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5454 (!(dev->flags & IFF_PROMISC) &&
5455 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5456 return;
5457 mode = SET_PROMISC_MODE_OFF;
5458 if (dev->flags & IFF_PROMISC)
5459 mode = SET_PROMISC_MODE_ON;
5460 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5461
5462 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5463 sizeof(struct qeth_ipacmd_setadpparms));
5464 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5465 cmd->data.setadapterparms.data.mode = mode;
5466 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5467}
1da177e4
LT		 5468
5469/**
5470 * set multicast address on card
5471 */
5472static void
5473qeth_set_multicast_list(struct net_device *dev)
5474{
5475 struct qeth_card *card = (struct qeth_card *) dev->priv;
5476
500f83ab
UB		 5477 if (card->info.type == QETH_CARD_TYPE_OSN)
5478 return ;
e82b0f2c 5479
66cc5d5a 5480 QETH_DBF_TEXT(trace, 3, "setmulti");
1da177e4 5481 qeth_delete_mc_addresses(card);
6c88ad2d
FP		 5482 if (card->options.layer2) {
5483 qeth_layer2_add_multicast(card);
5484 goto out;
5485 }
1da177e4
LT		 5486 qeth_add_multicast_ipv4(card);
5487#ifdef CONFIG_QETH_IPV6
5488 qeth_add_multicast_ipv6(card);
5489#endif
6c88ad2d 5490out:
ee2db684 5491 qeth_set_ip_addr_list(card);
6c951b90
FP		 5492 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5493 return;
ee2db684 5494 qeth_setadp_promisc_mode(card);
1da177e4
LT		 5495}
5496
5497static int
5498qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5499{
5500 return 0;
5501}
5502
5503static void
5504qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5505{
5506 if (dev->type == ARPHRD_IEEE802_TR)
5507 ip_tr_mc_map(ipm, mac);
5508 else
5509 ip_eth_mc_map(ipm, mac);
5510}
5511
5512static struct qeth_ipaddr *
5513qeth_get_addr_buffer(enum qeth_prot_versions prot)
5514{
5515 struct qeth_ipaddr *addr;
5516
88abaab4 5517 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
1da177e4
LT		 5518 if (addr == NULL) {
5519 PRINT_WARN("Not enough memory to add address\n");
5520 return NULL;
5521 }
1da177e4
LT		 5522 addr->type = QETH_IP_TYPE_NORMAL;
5523 addr->proto = prot;
5524 return addr;
5525}
5526
500f83ab
UB		 5527int
5528qeth_osn_assist(struct net_device *dev,
5529 void *data,
5530 int data_len)
5531{
5532 struct qeth_cmd_buffer *iob;
5533 struct qeth_card *card;
5534 int rc;
e82b0f2c 5535
500f83ab
UB		 5536 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5537 if (!dev)
5538 return -ENODEV;
5539 card = (struct qeth_card *)dev->priv;
5540 if (!card)
5541 return -ENODEV;
5542 if ((card->state != CARD_STATE_UP) &&
5543 (card->state != CARD_STATE_SOFTSETUP))
5544 return -ENODEV;
5545 iob = qeth_wait_for_buffer(&card->write);
5546 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5547 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5548 return rc;
5549}
5550
5551static struct net_device *
5552qeth_netdev_by_devno(unsigned char *read_dev_no)
5553{
5554 struct qeth_card *card;
5555 struct net_device *ndev;
5556 unsigned char *readno;
5557 __u16 temp_dev_no, card_dev_no;
5558 char *endp;
5559 unsigned long flags;
5560
5561 ndev = NULL;
5562 memcpy(&temp_dev_no, read_dev_no, 2);
5563 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5564 list_for_each_entry(card, &qeth_card_list.list, list) {
5565 readno = CARD_RDEV_ID(card);
5566 readno += (strlen(readno) - 4);
5567 card_dev_no = simple_strtoul(readno, &endp, 16);
5568 if (card_dev_no == temp_dev_no) {
5569 ndev = card->dev;
5570 break;
5571 }
5572 }
5573 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5574 return ndev;
5575}
5576
5577int
5578qeth_osn_register(unsigned char *read_dev_no,
5579 struct net_device **dev,
5580 int (*assist_cb)(struct net_device *, void *),
5581 int (*data_cb)(struct sk_buff *))
5582{
5583 struct qeth_card * card;
5584
5585 QETH_DBF_TEXT(trace, 2, "osnreg");
5586 *dev = qeth_netdev_by_devno(read_dev_no);
5587 if (*dev == NULL)
5588 return -ENODEV;
5589 card = (struct qeth_card *)(*dev)->priv;
5590 if (!card)
5591 return -ENODEV;
5592 if ((assist_cb == NULL) || (data_cb == NULL))
5593 return -EINVAL;
5594 card->osn_info.assist_cb = assist_cb;
5595 card->osn_info.data_cb = data_cb;
5596 return 0;
5597}
5598
5599void
5600qeth_osn_deregister(struct net_device * dev)
5601{
5602 struct qeth_card *card;
5603
5604 QETH_DBF_TEXT(trace, 2, "osndereg");
5605 if (!dev)
5606 return;
5607 card = (struct qeth_card *)dev->priv;
5608 if (!card)
5609 return;
5610 card->osn_info.assist_cb = NULL;
5611 card->osn_info.data_cb = NULL;
5612 return;
5613}
e82b0f2c 5614
1da177e4
LT		 5615static void
5616qeth_delete_mc_addresses(struct qeth_card *card)
5617{
5618 struct qeth_ipaddr *iptodo;
5619 unsigned long flags;
5620
5621 QETH_DBF_TEXT(trace,4,"delmc");
5622 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5623 if (!iptodo) {
5624 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5625 return;
5626 }
5627 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5628 spin_lock_irqsave(&card->ip_lock, flags);
5629 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5630 kfree(iptodo);
5631 spin_unlock_irqrestore(&card->ip_lock, flags);
5632}
5633
4d284cac 5634static void
1da177e4
LT		 5635qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5636{
5637 struct qeth_ipaddr *ipm;
5638 struct ip_mc_list *im4;
5639 char buf[MAX_ADDR_LEN];
5640
5641 QETH_DBF_TEXT(trace,4,"addmc");
5642 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5643 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5644 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5645 if (!ipm)
5646 continue;
5647 ipm->u.a4.addr = im4->multiaddr;
5648 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5649 ipm->is_multicast = 1;
5650 if (!qeth_add_ip(card,ipm))
5651 kfree(ipm);
5652 }
5653}
5654
5655static inline void
5656qeth_add_vlan_mc(struct qeth_card *card)
5657{
5658#ifdef CONFIG_QETH_VLAN
5659 struct in_device *in_dev;
5660 struct vlan_group *vg;
5661 int i;
5662
5663 QETH_DBF_TEXT(trace,4,"addmcvl");
5664 if ( ((card->options.layer2 == 0) &&
5665 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5666 (card->vlangrp == NULL) )
5667 return ;
5668
5669 vg = card->vlangrp;
5670 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5c15bdec
DA		 5671 struct net_device *netdev = vlan_group_get_device(vg, i);
5672 if (netdev == NULL ||
5673 !(netdev->flags & IFF_UP))
1da177e4 5674 continue;
5c15bdec 5675 in_dev = in_dev_get(netdev);
1da177e4
LT		 5676 if (!in_dev)
5677 continue;
5678 read_lock(&in_dev->mc_list_lock);
5679 qeth_add_mc(card,in_dev);
5680 read_unlock(&in_dev->mc_list_lock);
5681 in_dev_put(in_dev);
5682 }
5683#endif
5684}
5685
5686static void
5687qeth_add_multicast_ipv4(struct qeth_card *card)
5688{
5689 struct in_device *in4_dev;
5690
5691 QETH_DBF_TEXT(trace,4,"chkmcv4");
5692 in4_dev = in_dev_get(card->dev);
5693 if (in4_dev == NULL)
5694 return;
5695 read_lock(&in4_dev->mc_list_lock);
5696 qeth_add_mc(card, in4_dev);
5697 qeth_add_vlan_mc(card);
5698 read_unlock(&in4_dev->mc_list_lock);
5699 in_dev_put(in4_dev);
5700}
5701
6c88ad2d
FP		 5702static void
5703qeth_layer2_add_multicast(struct qeth_card *card)
5704{
5705 struct qeth_ipaddr *ipm;
5706 struct dev_mc_list *dm;
5707
5708 QETH_DBF_TEXT(trace,4,"L2addmc");
5709 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5710 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5711 if (!ipm)
5712 continue;
5713 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5714 ipm->is_multicast = 1;
5715 if (!qeth_add_ip(card, ipm))
5716 kfree(ipm);
5717 }
5718}
5719
1da177e4 5720#ifdef CONFIG_QETH_IPV6
4d284cac 5721static void
1da177e4
LT		 5722qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5723{
5724 struct qeth_ipaddr *ipm;
5725 struct ifmcaddr6 *im6;
5726 char buf[MAX_ADDR_LEN];
5727
5728 QETH_DBF_TEXT(trace,4,"addmc6");
5729 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5730 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5731 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5732 if (!ipm)
5733 continue;
5734 ipm->is_multicast = 1;
5735 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5736 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5737 sizeof(struct in6_addr));
5738 if (!qeth_add_ip(card,ipm))
5739 kfree(ipm);
5740 }
5741}
5742
5743static inline void
5744qeth_add_vlan_mc6(struct qeth_card *card)
5745{
5746#ifdef CONFIG_QETH_VLAN
5747 struct inet6_dev *in_dev;
5748 struct vlan_group *vg;
5749 int i;
5750
5751 QETH_DBF_TEXT(trace,4,"admc6vl");
5752 if ( ((card->options.layer2 == 0) &&
5753 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5754 (card->vlangrp == NULL))
5755 return ;
5756
5757 vg = card->vlangrp;
5758 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5c15bdec
DA		 5759 struct net_device *netdev = vlan_group_get_device(vg, i);
5760 if (netdev == NULL ||
5761 !(netdev->flags & IFF_UP))
1da177e4 5762 continue;
5c15bdec 5763 in_dev = in6_dev_get(netdev);
1da177e4
LT		 5764 if (!in_dev)
5765 continue;
5766 read_lock(&in_dev->lock);
5767 qeth_add_mc6(card,in_dev);
5768 read_unlock(&in_dev->lock);
5769 in6_dev_put(in_dev);
5770 }
5771#endif /* CONFIG_QETH_VLAN */
5772}
5773
5774static void
5775qeth_add_multicast_ipv6(struct qeth_card *card)
5776{
5777 struct inet6_dev *in6_dev;
5778
5779 QETH_DBF_TEXT(trace,4,"chkmcv6");
e82b0f2c 5780 if (!qeth_is_supported(card, IPA_IPV6))
1da177e4 5781 return ;
1da177e4
LT		 5782 in6_dev = in6_dev_get(card->dev);
5783 if (in6_dev == NULL)
5784 return;
5785 read_lock(&in6_dev->lock);
5786 qeth_add_mc6(card, in6_dev);
5787 qeth_add_vlan_mc6(card);
5788 read_unlock(&in6_dev->lock);
5789 in6_dev_put(in6_dev);
5790}
5791#endif /* CONFIG_QETH_IPV6 */
5792
5793static int
5794qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5795 enum qeth_ipa_cmds ipacmd,
5796 int (*reply_cb) (struct qeth_card *,
5797 struct qeth_reply*,
5798 unsigned long))
5799{
5800 struct qeth_ipa_cmd *cmd;
5801 struct qeth_cmd_buffer *iob;
5802
5803 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5804 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5805 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5806 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5807 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5808 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5809}
5810
5811static int
5812qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5813 struct qeth_reply *reply,
5814 unsigned long data)
5815{
5816 struct qeth_ipa_cmd *cmd;
5817 __u8 *mac;
5818
5819 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5820 cmd = (struct qeth_ipa_cmd *) data;
5821 mac = &cmd->data.setdelmac.mac[0];
5822 /* MAC already registered, needed in couple/uncouple case */
5823 if (cmd->hdr.return_code == 0x2005) {
5824 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5825 "already existing on %s \n",
5826 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5827 QETH_CARD_IFNAME(card));
5828 cmd->hdr.return_code = 0;
5829 }
5830 if (cmd->hdr.return_code)
5831 PRINT_ERR("Could not set group MAC " \
5832 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5833 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5834 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5835 return 0;
5836}
5837
5838static int
5839qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5840{
5841 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5842 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5843 qeth_layer2_send_setgroupmac_cb);
5844}
5845
5846static int
5847qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5848 struct qeth_reply *reply,
5849 unsigned long data)
5850{
5851 struct qeth_ipa_cmd *cmd;
5852 __u8 *mac;
5853
5854 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5855 cmd = (struct qeth_ipa_cmd *) data;
5856 mac = &cmd->data.setdelmac.mac[0];
5857 if (cmd->hdr.return_code)
5858 PRINT_ERR("Could not delete group MAC " \
5859 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5860 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5861 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5862 return 0;
5863}
5864
5865static int
5866qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5867{
5868 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5869 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5870 qeth_layer2_send_delgroupmac_cb);
5871}
5872
5873static int
5874qeth_layer2_send_setmac_cb(struct qeth_card *card,
5875 struct qeth_reply *reply,
5876 unsigned long data)
5877{
5878 struct qeth_ipa_cmd *cmd;
5879
5880 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5881 cmd = (struct qeth_ipa_cmd *) data;
5882 if (cmd->hdr.return_code) {
5883 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5884 PRINT_WARN("Error in registering MAC address on " \
5885 "device %s: x%x\n", CARD_BUS_ID(card),
5886 cmd->hdr.return_code);
e08d88cc 5887 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5888 cmd->hdr.return_code = -EIO;
5889 } else {
e08d88cc 5890 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5891 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5892 OSA_ADDR_LEN);
5893 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5894 "successfully registered on device %s\n",
5895 card->dev->dev_addr[0], card->dev->dev_addr[1],
5896 card->dev->dev_addr[2], card->dev->dev_addr[3],
5897 card->dev->dev_addr[4], card->dev->dev_addr[5],
5898 card->dev->name);
5899 }
5900 return 0;
5901}
5902
5903static int
5904qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5905{
5906 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5907 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5908 qeth_layer2_send_setmac_cb);
5909}
5910
5911static int
5912qeth_layer2_send_delmac_cb(struct qeth_card *card,
5913 struct qeth_reply *reply,
5914 unsigned long data)
5915{
5916 struct qeth_ipa_cmd *cmd;
5917
5918 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5919 cmd = (struct qeth_ipa_cmd *) data;
5920 if (cmd->hdr.return_code) {
5921 PRINT_WARN("Error in deregistering MAC address on " \
5922 "device %s: x%x\n", CARD_BUS_ID(card),
5923 cmd->hdr.return_code);
5924 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5925 cmd->hdr.return_code = -EIO;
5926 return 0;
5927 }
e08d88cc 5928 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5929
5930 return 0;
5931}
5932static int
5933qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5934{
5935 QETH_DBF_TEXT(trace, 2, "L2Delmac");
e08d88cc 5936 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
1da177e4
LT		 5937 return 0;
5938 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5939 qeth_layer2_send_delmac_cb);
5940}
5941
5942static int
5943qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5944{
5945 struct sockaddr *addr = p;
5946 struct qeth_card *card;
5947 int rc = 0;
5948
5949 QETH_DBF_TEXT(trace, 3, "setmac");
5950
5951 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5952 QETH_DBF_TEXT(trace, 3, "setmcINV");
5953 return -EOPNOTSUPP;
5954 }
5955 card = (struct qeth_card *) dev->priv;
5956
5957 if (!card->options.layer2) {
e08d88cc 5958 PRINT_WARN("Setting MAC address on %s is not supported "
1da177e4
LT		 5959 "in Layer 3 mode.\n", dev->name);
5960 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5961 return -EOPNOTSUPP;
5962 }
500f83ab
UB		 5963 if (card->info.type == QETH_CARD_TYPE_OSN) {
5964 PRINT_WARN("Setting MAC address on %s is not supported.\n",
5965 dev->name);
5966 QETH_DBF_TEXT(trace, 3, "setmcOSN");
5967 return -EOPNOTSUPP;
5968 }
1da177e4
LT		 5969 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5970 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5971 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5972 if (!rc)
5973 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5974 return rc;
5975}
5976
5977static void
5978qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5979 __u8 command, enum qeth_prot_versions prot)
5980{
5981 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5982 cmd->hdr.command = command;
5983 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5984 cmd->hdr.seqno = card->seqno.ipa;
5985 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5986 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5987 if (card->options.layer2)
5988 cmd->hdr.prim_version_no = 2;
5989 else
5990 cmd->hdr.prim_version_no = 1;
5991 cmd->hdr.param_count = 1;
5992 cmd->hdr.prot_version = prot;
5993 cmd->hdr.ipa_supported = 0;
5994 cmd->hdr.ipa_enabled = 0;
5995}
5996
5997static struct qeth_cmd_buffer *
5998qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5999 enum qeth_prot_versions prot)
6000{
6001 struct qeth_cmd_buffer *iob;
6002 struct qeth_ipa_cmd *cmd;
6003
6004 iob = qeth_wait_for_buffer(&card->write);
6005 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6006 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6007
6008 return iob;
6009}
6010
6011static int
6012qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6013{
6014 int rc;
6015 struct qeth_cmd_buffer *iob;
6016 struct qeth_ipa_cmd *cmd;
6017
6018 QETH_DBF_TEXT(trace,4,"setdelmc");
6019
6020 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6021 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6022 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6023 if (addr->proto == QETH_PROT_IPV6)
6024 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6025 sizeof(struct in6_addr));
6026 else
6027 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6028
6029 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6030
6031 return rc;
6032}
4d284cac 6033static void
1da177e4
LT		 6034qeth_fill_netmask(u8 *netmask, unsigned int len)
6035{
6036 int i,j;
6037 for (i=0;i<16;i++) {
6038 j=(len)-(i*8);
6039 if (j >= 8)
6040 netmask[i] = 0xff;
6041 else if (j > 0)
6042 netmask[i] = (u8)(0xFF00>>j);
6043 else
6044 netmask[i] = 0;
6045 }
6046}
6047
6048static int
6049qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6050 int ipacmd, unsigned int flags)
6051{
6052 int rc;
6053 struct qeth_cmd_buffer *iob;
6054 struct qeth_ipa_cmd *cmd;
6055 __u8 netmask[16];
6056
6057 QETH_DBF_TEXT(trace,4,"setdelip");
6058 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6059
6060 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6061 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6062 if (addr->proto == QETH_PROT_IPV6) {
6063 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6064 sizeof(struct in6_addr));
6065 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6066 memcpy(cmd->data.setdelip6.mask, netmask,
6067 sizeof(struct in6_addr));
6068 cmd->data.setdelip6.flags = flags;
6069 } else {
6070 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6071 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6072 cmd->data.setdelip4.flags = flags;
6073 }
6074
6075 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6076
6077 return rc;
6078}
6079
6080static int
6081qeth_layer2_register_addr_entry(struct qeth_card *card,
6082 struct qeth_ipaddr *addr)
6083{
6084 if (!addr->is_multicast)
6085 return 0;
6086 QETH_DBF_TEXT(trace, 2, "setgmac");
6087 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6088 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6089}
6090
6091static int
6092qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6093 struct qeth_ipaddr *addr)
6094{
6095 if (!addr->is_multicast)
6096 return 0;
6097 QETH_DBF_TEXT(trace, 2, "delgmac");
6098 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6099 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6100}
6101
6102static int
6103qeth_layer3_register_addr_entry(struct qeth_card *card,
6104 struct qeth_ipaddr *addr)
6105{
6106 char buf[50];
6107 int rc;
6108 int cnt = 3;
6109
6110 if (addr->proto == QETH_PROT_IPV4) {
6111 QETH_DBF_TEXT(trace, 2,"setaddr4");
6112 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6113 } else if (addr->proto == QETH_PROT_IPV6) {
6114 QETH_DBF_TEXT(trace, 2, "setaddr6");
6115 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6116 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6117 } else {
6118 QETH_DBF_TEXT(trace, 2, "setaddr?");
6119 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6120 }
6121 do {
6122 if (addr->is_multicast)
6123 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6124 else
6125 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6126 addr->set_flags);
6127 if (rc)
6128 QETH_DBF_TEXT(trace, 2, "failed");
6129 } while ((--cnt > 0) && rc);
6130 if (rc){
6131 QETH_DBF_TEXT(trace, 2, "FAILED");
6132 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6133 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6134 buf, rc, rc);
6135 }
6136 return rc;
6137}
6138
6139static int
6140qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6141 struct qeth_ipaddr *addr)
6142{
6143 //char buf[50];
6144 int rc;
6145
6146 if (addr->proto == QETH_PROT_IPV4) {
6147 QETH_DBF_TEXT(trace, 2,"deladdr4");
6148 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6149 } else if (addr->proto == QETH_PROT_IPV6) {
6150 QETH_DBF_TEXT(trace, 2, "deladdr6");
6151 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6152 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6153 } else {
6154 QETH_DBF_TEXT(trace, 2, "deladdr?");
6155 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6156 }
6157 if (addr->is_multicast)
6158 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6159 else
6160 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6161 addr->del_flags);
6162 if (rc) {
6163 QETH_DBF_TEXT(trace, 2, "failed");
6164 /* TODO: re-activate this warning as soon as we have a
6165 * clean mirco code
6166 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6167 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6168 buf, rc);
6169 */
6170 }
6171 return rc;
6172}
6173
6174static int
6175qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6176{
6177 if (card->options.layer2)
6178 return qeth_layer2_register_addr_entry(card, addr);
6179
6180 return qeth_layer3_register_addr_entry(card, addr);
6181}
6182
6183static int
6184qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6185{
6186 if (card->options.layer2)
6187 return qeth_layer2_deregister_addr_entry(card, addr);
6188
6189 return qeth_layer3_deregister_addr_entry(card, addr);
6190}
6191
6192static u32
6193qeth_ethtool_get_tx_csum(struct net_device *dev)
6194{
6195 /* We may need to say that we support tx csum offload if
6196 * we do EDDP or TSO. There are discussions going on to
6197 * enforce rules in the stack and in ethtool that make
6198 * SG and TSO depend on HW_CSUM. At the moment there are
6199 * no such rules....
6200 * If we say yes here, we have to checksum outbound packets
6201 * any time. */
6202 return 0;
6203}
6204
6205static int
6206qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6207{
6208 return -EINVAL;
6209}
6210
6211static u32
6212qeth_ethtool_get_rx_csum(struct net_device *dev)
6213{
6214 struct qeth_card *card = (struct qeth_card *)dev->priv;
6215
6216 return (card->options.checksum_type == HW_CHECKSUMMING);
6217}
6218
6219static int
6220qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6221{
6222 struct qeth_card *card = (struct qeth_card *)dev->priv;
6223
6224 if ((card->state != CARD_STATE_DOWN) &&
6225 (card->state != CARD_STATE_RECOVER))
6226 return -EPERM;
6227 if (data)
6228 card->options.checksum_type = HW_CHECKSUMMING;
6229 else
6230 card->options.checksum_type = SW_CHECKSUMMING;
6231 return 0;
6232}
6233
6234static u32
6235qeth_ethtool_get_sg(struct net_device *dev)
6236{
6237 struct qeth_card *card = (struct qeth_card *)dev->priv;
6238
6239 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6240 (dev->features & NETIF_F_SG));
6241}
6242
6243static int
6244qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6245{
6246 struct qeth_card *card = (struct qeth_card *)dev->priv;
6247
6248 if (data) {
6249 if (card->options.large_send != QETH_LARGE_SEND_NO)
6250 dev->features |= NETIF_F_SG;
6251 else {
6252 dev->features &= ~NETIF_F_SG;
6253 return -EINVAL;
6254 }
6255 } else
6256 dev->features &= ~NETIF_F_SG;
6257 return 0;
6258}
6259
6260static u32
6261qeth_ethtool_get_tso(struct net_device *dev)
6262{
6263 struct qeth_card *card = (struct qeth_card *)dev->priv;
6264
6265 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6266 (dev->features & NETIF_F_TSO));
6267}
6268
6269static int
6270qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6271{
6272 struct qeth_card *card = (struct qeth_card *)dev->priv;
6273
6274 if (data) {
6275 if (card->options.large_send != QETH_LARGE_SEND_NO)
6276 dev->features |= NETIF_F_TSO;
6277 else {
6278 dev->features &= ~NETIF_F_TSO;
6279 return -EINVAL;
6280 }
6281 } else
6282 dev->features &= ~NETIF_F_TSO;
6283 return 0;
6284}
6285
6286static struct ethtool_ops qeth_ethtool_ops = {
6287 .get_tx_csum = qeth_ethtool_get_tx_csum,
6288 .set_tx_csum = qeth_ethtool_set_tx_csum,
6289 .get_rx_csum = qeth_ethtool_get_rx_csum,
6290 .set_rx_csum = qeth_ethtool_set_rx_csum,
6291 .get_sg = qeth_ethtool_get_sg,
6292 .set_sg = qeth_ethtool_set_sg,
6293 .get_tso = qeth_ethtool_get_tso,
6294 .set_tso = qeth_ethtool_set_tso,
6295};
6296
2d36c16e
FB		 6297static int
6298qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6299{
6300 struct qeth_card *card;
6301 struct ethhdr *eth;
6302
6303 card = qeth_get_card_from_dev(skb->dev);
6304 if (card->options.layer2)
6305 goto haveheader;
6306#ifdef CONFIG_QETH_IPV6
6307 /* cause of the manipulated arp constructor and the ARP
6308 flag for OSAE devices we have some nasty exceptions */
6309 if (card->info.type == QETH_CARD_TYPE_OSAE) {
6310 if (!card->options.fake_ll) {
6311 if ((skb->pkt_type==PACKET_OUTGOING) &&
6312 (skb->protocol==ETH_P_IPV6))
6313 goto haveheader;
6314 else
6315 return 0;
6316 } else {
6317 if ((skb->pkt_type==PACKET_OUTGOING) &&
6318 (skb->protocol==ETH_P_IP))
6319 return 0;
6320 else
6321 goto haveheader;
6322 }
6323 }
6324#endif
6325 if (!card->options.fake_ll)
6326 return 0;
6327haveheader:
6328 eth = eth_hdr(skb);
6329 memcpy(haddr, eth->h_source, ETH_ALEN);
6330 return ETH_ALEN;
6331}
6332
1da177e4
LT		 6333static int
6334qeth_netdev_init(struct net_device *dev)
6335{
6336 struct qeth_card *card;
6337
6338 card = (struct qeth_card *) dev->priv;
6339
6340 QETH_DBF_TEXT(trace,3,"initdev");
6341
6342 dev->tx_timeout = &qeth_tx_timeout;
6343 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6344 dev->open = qeth_open;
6345 dev->stop = qeth_stop;
6346 dev->hard_start_xmit = qeth_hard_start_xmit;
6347 dev->do_ioctl = qeth_do_ioctl;
6348 dev->get_stats = qeth_get_stats;
6349 dev->change_mtu = qeth_change_mtu;
6350 dev->neigh_setup = qeth_neigh_setup;
6351 dev->set_multicast_list = qeth_set_multicast_list;
6352#ifdef CONFIG_QETH_VLAN
6353 dev->vlan_rx_register = qeth_vlan_rx_register;
6354 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6355 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6356#endif
1da177e4
LT		 6357 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6358 dev->rebuild_header = NULL;
6359 dev->hard_header = NULL;
1da177e4
LT		 6360 dev->header_cache_update = NULL;
6361 dev->hard_header_cache = NULL;
6362 }
6363#ifdef CONFIG_QETH_IPV6
6364 /*IPv6 address autoconfiguration stuff*/
6365 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6366 card->dev->dev_id = card->info.unique_id & 0xffff;
6367#endif
e82b0f2c 6368 if (card->options.fake_ll &&
ba1aa084
UB		 6369 (qeth_get_netdev_flags(card) & IFF_NOARP))
6370 dev->hard_header = qeth_fake_header;
2d36c16e
FB		 6371 if (dev->type == ARPHRD_IEEE802_TR)
6372 dev->hard_header_parse = NULL;
6373 else
6374 dev->hard_header_parse = qeth_hard_header_parse;
1da177e4
LT		 6375 dev->set_mac_address = qeth_layer2_set_mac_address;
6376 dev->flags |= qeth_get_netdev_flags(card);
6377 if ((card->options.fake_broadcast) ||
6378 (card->info.broadcast_capable))
6379 dev->flags |= IFF_BROADCAST;
6380 dev->hard_header_len =
6381 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6382 dev->addr_len = OSA_ADDR_LEN;
6383 dev->mtu = card->info.initial_mtu;
500f83ab
UB		 6384 if (card->info.type != QETH_CARD_TYPE_OSN)
6385 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
1da177e4
LT		 6386 SET_MODULE_OWNER(dev);
6387 return 0;
6388}
6389
6390static void
6391qeth_init_func_level(struct qeth_card *card)
6392{
6393 if (card->ipato.enabled) {
6394 if (card->info.type == QETH_CARD_TYPE_IQD)
6395 card->info.func_level =
6396 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6397 else
6398 card->info.func_level =
6399 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6400 } else {
6401 if (card->info.type == QETH_CARD_TYPE_IQD)
500f83ab 6402 /*FIXME:why do we have same values for dis and ena for osae??? */
1da177e4
LT		 6403 card->info.func_level =
6404 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6405 else
6406 card->info.func_level =
6407 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6408 }
6409}
6410
6411/**
6412 * hardsetup card, initialize MPC and QDIO stuff
6413 */
6414static int
6415qeth_hardsetup_card(struct qeth_card *card)
6416{
6417 int retries = 3;
6418 int rc;
6419
6420 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6421
6422retry:
6423 if (retries < 3){
6424 PRINT_WARN("Retrying to do IDX activates.\n");
6425 ccw_device_set_offline(CARD_DDEV(card));
6426 ccw_device_set_offline(CARD_WDEV(card));
6427 ccw_device_set_offline(CARD_RDEV(card));
6428 ccw_device_set_online(CARD_RDEV(card));
6429 ccw_device_set_online(CARD_WDEV(card));
6430 ccw_device_set_online(CARD_DDEV(card));
6431 }
500f83ab 6432 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 6433 if (rc == -ERESTARTSYS) {
6434 QETH_DBF_TEXT(setup, 2, "break1");
6435 return rc;
6436 } else if (rc) {
6437 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6438 if (--retries < 0)
6439 goto out;
6440 else
6441 goto retry;
6442 }
6443 if ((rc = qeth_get_unitaddr(card))){
6444 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6445 return rc;
6446 }
6447 qeth_init_tokens(card);
6448 qeth_init_func_level(card);
6449 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6450 if (rc == -ERESTARTSYS) {
6451 QETH_DBF_TEXT(setup, 2, "break2");
6452 return rc;
6453 } else if (rc) {
6454 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6455 if (--retries < 0)
6456 goto out;
6457 else
6458 goto retry;
6459 }
6460 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6461 if (rc == -ERESTARTSYS) {
6462 QETH_DBF_TEXT(setup, 2, "break3");
6463 return rc;
6464 } else if (rc) {
6465 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6466 if (--retries < 0)
6467 goto out;
6468 else
6469 goto retry;
6470 }
6471 if ((rc = qeth_mpc_initialize(card))){
6472 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6473 goto out;
6474 }
6475 /*network device will be recovered*/
6476 if (card->dev) {
6477 card->dev->hard_header = card->orig_hard_header;
e82b0f2c 6478 if (card->options.fake_ll &&
b85e1fa1
UB		 6479 (qeth_get_netdev_flags(card) & IFF_NOARP))
6480 card->dev->hard_header = qeth_fake_header;
1da177e4
LT		 6481 return 0;
6482 }
6483 /* at first set_online allocate netdev */
6484 card->dev = qeth_get_netdevice(card->info.type,
6485 card->info.link_type);
6486 if (!card->dev){
500f83ab
UB		 6487 qeth_qdio_clear_card(card, card->info.type !=
6488 QETH_CARD_TYPE_IQD);
1da177e4
LT		 6489 rc = -ENODEV;
6490 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6491 goto out;
6492 }
6493 card->dev->priv = card;
6494 card->orig_hard_header = card->dev->hard_header;
6495 card->dev->type = qeth_get_arphdr_type(card->info.type,
6496 card->info.link_type);
6497 card->dev->init = qeth_netdev_init;
6498 return 0;
6499out:
6500 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6501 return rc;
6502}
6503
6504static int
6505qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6506 unsigned long data)
6507{
6508 struct qeth_ipa_cmd *cmd;
6509
6510 QETH_DBF_TEXT(trace,4,"defadpcb");
6511
6512 cmd = (struct qeth_ipa_cmd *) data;
6513 if (cmd->hdr.return_code == 0){
6514 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6515 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6516 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6517#ifdef CONFIG_QETH_IPV6
6518 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6519 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6520#endif
6521 }
6522 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6523 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6524 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6525 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6526 }
6527 return 0;
6528}
6529
6530static int
6531qeth_default_setadapterparms_cb(struct qeth_card *card,
6532 struct qeth_reply *reply,
6533 unsigned long data)
6534{
6535 struct qeth_ipa_cmd *cmd;
6536
6537 QETH_DBF_TEXT(trace,4,"defadpcb");
6538
6539 cmd = (struct qeth_ipa_cmd *) data;
6540 if (cmd->hdr.return_code == 0)
6541 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6542 return 0;
6543}
6544
6c951b90
FP		 6545
6546
1da177e4
LT		 6547static int
6548qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6549 unsigned long data)
6550{
6551 struct qeth_ipa_cmd *cmd;
6552
6553 QETH_DBF_TEXT(trace,3,"quyadpcb");
6554
6555 cmd = (struct qeth_ipa_cmd *) data;
6556 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6557 card->info.link_type =
6558 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6559 card->options.adp.supported_funcs =
6560 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6561 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6562}
6563
6564static int
6565qeth_query_setadapterparms(struct qeth_card *card)
6566{
6567 int rc;
6568 struct qeth_cmd_buffer *iob;
6569
6570 QETH_DBF_TEXT(trace,3,"queryadp");
6571 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6572 sizeof(struct qeth_ipacmd_setadpparms));
6573 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6574 return rc;
6575}
6576
6577static int
6578qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6579 struct qeth_reply *reply,
6580 unsigned long data)
6581{
6582 struct qeth_ipa_cmd *cmd;
6583
6584 QETH_DBF_TEXT(trace,4,"chgmaccb");
6585
6586 cmd = (struct qeth_ipa_cmd *) data;
e08d88cc 6587 if (!card->options.layer2 || card->info.guestlan ||
e82b0f2c 6588 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
e08d88cc
FP		 6589 memcpy(card->dev->dev_addr,
6590 &cmd->data.setadapterparms.data.change_addr.addr,
6591 OSA_ADDR_LEN);
6592 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6593 }
1da177e4
LT		 6594 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6595 return 0;
6596}
6597
6598static int
6599qeth_setadpparms_change_macaddr(struct qeth_card *card)
6600{
6601 int rc;
6602 struct qeth_cmd_buffer *iob;
6603 struct qeth_ipa_cmd *cmd;
6604
6605 QETH_DBF_TEXT(trace,4,"chgmac");
6606
6607 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6608 sizeof(struct qeth_ipacmd_setadpparms));
6609 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6610 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6611 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6612 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6613 card->dev->dev_addr, OSA_ADDR_LEN);
6614 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6615 NULL);
6616 return rc;
6617}
6618
6619static int
6620qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6621{
6622 int rc;
6623 struct qeth_cmd_buffer *iob;
6624 struct qeth_ipa_cmd *cmd;
6625
6626 QETH_DBF_TEXT(trace,4,"adpmode");
6627
6628 iob = qeth_get_adapter_cmd(card, command,
6629 sizeof(struct qeth_ipacmd_setadpparms));
6630 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6631 cmd->data.setadapterparms.data.mode = mode;
6632 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6633 NULL);
6634 return rc;
6635}
6636
4d284cac 6637static int
1da177e4
LT		 6638qeth_setadapter_hstr(struct qeth_card *card)
6639{
6640 int rc;
6641
6642 QETH_DBF_TEXT(trace,4,"adphstr");
6643
6644 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6645 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6646 card->options.broadcast_mode);
6647 if (rc)
6648 PRINT_WARN("couldn't set broadcast mode on "
6649 "device %s: x%x\n",
6650 CARD_BUS_ID(card), rc);
6651 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6652 card->options.macaddr_mode);
6653 if (rc)
6654 PRINT_WARN("couldn't set macaddr mode on "
6655 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6656 return rc;
6657 }
6658 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6659 PRINT_WARN("set adapter parameters not available "
6660 "to set broadcast mode, using ALLRINGS "
6661 "on device %s:\n", CARD_BUS_ID(card));
6662 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6663 PRINT_WARN("set adapter parameters not available "
6664 "to set macaddr mode, using NONCANONICAL "
6665 "on device %s:\n", CARD_BUS_ID(card));
6666 return 0;
6667}
6668
6669static int
6670qeth_setadapter_parms(struct qeth_card *card)
6671{
6672 int rc;
6673
6674 QETH_DBF_TEXT(setup, 2, "setadprm");
6675
6676 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6677 PRINT_WARN("set adapter parameters not supported "
6678 "on device %s.\n",
6679 CARD_BUS_ID(card));
6680 QETH_DBF_TEXT(setup, 2, " notsupp");
6681 return 0;
6682 }
6683 rc = qeth_query_setadapterparms(card);
6684 if (rc) {
6685 PRINT_WARN("couldn't set adapter parameters on device %s: "
6686 "x%x\n", CARD_BUS_ID(card), rc);
6687 return rc;
6688 }
6689 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6690 rc = qeth_setadpparms_change_macaddr(card);
6691 if (rc)
6692 PRINT_WARN("couldn't get MAC address on "
6693 "device %s: x%x\n",
6694 CARD_BUS_ID(card), rc);
6695 }
6696
6697 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6698 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6699 rc = qeth_setadapter_hstr(card);
6700
6701 return rc;
6702}
6703
6704static int
6705qeth_layer2_initialize(struct qeth_card *card)
6706{
6707 int rc = 0;
6708
6709
6710 QETH_DBF_TEXT(setup, 2, "doL2init");
6711 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6712
6c951b90
FP		 6713 rc = qeth_query_setadapterparms(card);
6714 if (rc) {
6715 PRINT_WARN("could not query adapter parameters on device %s: "
6716 "x%x\n", CARD_BUS_ID(card), rc);
6717 }
6718
1da177e4
LT		 6719 rc = qeth_setadpparms_change_macaddr(card);
6720 if (rc) {
6721 PRINT_WARN("couldn't get MAC address on "
6722 "device %s: x%x\n",
6723 CARD_BUS_ID(card), rc);
6724 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6725 return rc;
6726 }
6727 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6728
6729 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6730 if (rc)
6731 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6732 return 0;
6733}
6734
6735
6736static int
6737qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6738 enum qeth_prot_versions prot)
6739{
6740 int rc;
6741 struct qeth_cmd_buffer *iob;
6742
6743 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6744 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6745
6746 return rc;
6747}
6748
6749static int
6750qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6751{
6752 int rc;
6753
6754 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6755
6756 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6757 return rc;
6758}
6759
6760static int
6761qeth_send_stoplan(struct qeth_card *card)
6762{
6763 int rc = 0;
6764
6765 /*
6766 * TODO: according to the IPA format document page 14,
6767 * TCP/IP (we!) never issue a STOPLAN
6768 * is this right ?!?
6769 */
6770 QETH_DBF_TEXT(trace, 2, "stoplan");
6771
6772 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6773 return rc;
6774}
6775
6776static int
6777qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6778 unsigned long data)
6779{
6780 struct qeth_ipa_cmd *cmd;
6781
6782 QETH_DBF_TEXT(setup, 2, "qipasscb");
6783
6784 cmd = (struct qeth_ipa_cmd *) data;
6785 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6786 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6787 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
9123e0d7
UB		 6788 /* Disable IPV6 support hard coded for Hipersockets */
6789 if(card->info.type == QETH_CARD_TYPE_IQD)
6790 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
1da177e4
LT		 6791 } else {
6792#ifdef CONFIG_QETH_IPV6
6793 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6794 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6795#endif
6796 }
6797 QETH_DBF_TEXT(setup, 2, "suppenbl");
6798 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6799 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6800 return 0;
6801}
6802
6803static int
6804qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6805{
6806 int rc;
6807 struct qeth_cmd_buffer *iob;
6808
6809 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6810 if (card->options.layer2) {
6811 QETH_DBF_TEXT(setup, 2, "noprmly2");
6812 return -EPERM;
6813 }
6814
6815 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6816 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6817 return rc;
6818}
6819
6820static struct qeth_cmd_buffer *
6821qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6822 __u16 cmd_code, __u16 len,
6823 enum qeth_prot_versions prot)
6824{
6825 struct qeth_cmd_buffer *iob;
6826 struct qeth_ipa_cmd *cmd;
6827
6828 QETH_DBF_TEXT(trace,4,"getasscm");
6829 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6830
6831 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6832 cmd->data.setassparms.hdr.assist_no = ipa_func;
6833 cmd->data.setassparms.hdr.length = 8 + len;
6834 cmd->data.setassparms.hdr.command_code = cmd_code;
6835 cmd->data.setassparms.hdr.return_code = 0;
6836 cmd->data.setassparms.hdr.seq_no = 0;
6837
6838 return iob;
6839}
6840
6841static int
6842qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6843 __u16 len, long data,
6844 int (*reply_cb)
6845 (struct qeth_card *,struct qeth_reply *,unsigned long),
6846 void *reply_param)
6847{
6848 int rc;
6849 struct qeth_ipa_cmd *cmd;
6850
6851 QETH_DBF_TEXT(trace,4,"sendassp");
6852
6853 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6854 if (len <= sizeof(__u32))
6855 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1380fee2 6856 else /* (len > sizeof(__u32)) */
1da177e4
LT		 6857 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6858
6859 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6860 return rc;
6861}
6862
6863#ifdef CONFIG_QETH_IPV6
6864static int
6865qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6866 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6867
6868{
6869 int rc;
6870 struct qeth_cmd_buffer *iob;
6871
6872 QETH_DBF_TEXT(trace,4,"simassp6");
6873 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6874 0, QETH_PROT_IPV6);
6875 rc = qeth_send_setassparms(card, iob, 0, 0,
6876 qeth_default_setassparms_cb, NULL);
6877 return rc;
6878}
6879#endif
6880
6881static int
6882qeth_send_simple_setassparms(struct qeth_card *card,
6883 enum qeth_ipa_funcs ipa_func,
6884 __u16 cmd_code, long data)
6885{
6886 int rc;
6887 int length = 0;
6888 struct qeth_cmd_buffer *iob;
6889
6890 QETH_DBF_TEXT(trace,4,"simassp4");
6891 if (data)
6892 length = sizeof(__u32);
6893 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6894 length, QETH_PROT_IPV4);
6895 rc = qeth_send_setassparms(card, iob, length, data,
6896 qeth_default_setassparms_cb, NULL);
6897 return rc;
6898}
6899
4d284cac 6900static int
1da177e4
LT		 6901qeth_start_ipa_arp_processing(struct qeth_card *card)
6902{
6903 int rc;
6904
6905 QETH_DBF_TEXT(trace,3,"ipaarp");
6906
6907 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6908 PRINT_WARN("ARP processing not supported "
6909 "on %s!\n", QETH_CARD_IFNAME(card));
6910 return 0;
6911 }
6912 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6913 IPA_CMD_ASS_START, 0);
6914 if (rc) {
6915 PRINT_WARN("Could not start ARP processing "
6916 "assist on %s: 0x%x\n",
6917 QETH_CARD_IFNAME(card), rc);
6918 }
6919 return rc;
6920}
6921
6922static int
6923qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6924{
6925 int rc;
6926
6927 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6928
6929 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6930 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6931 QETH_CARD_IFNAME(card));
6932 return -EOPNOTSUPP;
6933 }
6934
6935 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6936 IPA_CMD_ASS_START, 0);
6937 if (rc) {
6938 PRINT_WARN("Could not start Hardware IP fragmentation "
6939 "assist on %s: 0x%x\n",
6940 QETH_CARD_IFNAME(card), rc);
6941 } else
6942 PRINT_INFO("Hardware IP fragmentation enabled \n");
6943 return rc;
6944}
6945
6946static int
6947qeth_start_ipa_source_mac(struct qeth_card *card)
6948{
6949 int rc;
6950
6951 QETH_DBF_TEXT(trace,3,"stsrcmac");
6952
6953 if (!card->options.fake_ll)
6954 return -EOPNOTSUPP;
6955
6956 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6957 PRINT_INFO("Inbound source address not "
6958 "supported on %s\n", QETH_CARD_IFNAME(card));
6959 return -EOPNOTSUPP;
6960 }
6961
6962 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6963 IPA_CMD_ASS_START, 0);
6964 if (rc)
6965 PRINT_WARN("Could not start inbound source "
6966 "assist on %s: 0x%x\n",
6967 QETH_CARD_IFNAME(card), rc);
6968 return rc;
6969}
6970
6971static int
6972qeth_start_ipa_vlan(struct qeth_card *card)
6973{
6974 int rc = 0;
6975
6976 QETH_DBF_TEXT(trace,3,"strtvlan");
6977
6978#ifdef CONFIG_QETH_VLAN
6979 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6980 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6981 return -EOPNOTSUPP;
6982 }
6983
6984 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6985 IPA_CMD_ASS_START,0);
6986 if (rc) {
6987 PRINT_WARN("Could not start vlan "
6988 "assist on %s: 0x%x\n",
6989 QETH_CARD_IFNAME(card), rc);
6990 } else {
6991 PRINT_INFO("VLAN enabled \n");
6992 card->dev->features |=
6993 NETIF_F_HW_VLAN_FILTER |
6994 NETIF_F_HW_VLAN_TX |
6995 NETIF_F_HW_VLAN_RX;
6996 }
6997#endif /* QETH_VLAN */
6998 return rc;
6999}
7000
7001static int
7002qeth_start_ipa_multicast(struct qeth_card *card)
7003{
7004 int rc;
7005
7006 QETH_DBF_TEXT(trace,3,"stmcast");
7007
7008 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7009 PRINT_WARN("Multicast not supported on %s\n",
7010 QETH_CARD_IFNAME(card));
7011 return -EOPNOTSUPP;
7012 }
7013
7014 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7015 IPA_CMD_ASS_START,0);
7016 if (rc) {
7017 PRINT_WARN("Could not start multicast "
7018 "assist on %s: rc=%i\n",
7019 QETH_CARD_IFNAME(card), rc);
7020 } else {
7021 PRINT_INFO("Multicast enabled\n");
7022 card->dev->flags |= IFF_MULTICAST;
7023 }
7024 return rc;
7025}
7026
7027#ifdef CONFIG_QETH_IPV6
7028static int
7029qeth_softsetup_ipv6(struct qeth_card *card)
7030{
7031 int rc;
7032
7033 QETH_DBF_TEXT(trace,3,"softipv6");
7034
1da177e4
LT		 7035 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7036 if (rc) {
7037 PRINT_ERR("IPv6 startlan failed on %s\n",
7038 QETH_CARD_IFNAME(card));
7039 return rc;
7040 }
1da177e4
LT		 7041 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7042 if (rc) {
7043 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7044 QETH_CARD_IFNAME(card));
7045 return rc;
7046 }
7047 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7048 IPA_CMD_ASS_START, 3);
7049 if (rc) {
7050 PRINT_WARN("IPv6 start assist (version 4) failed "
7051 "on %s: 0x%x\n",
7052 QETH_CARD_IFNAME(card), rc);
7053 return rc;
7054 }
7055 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7056 IPA_CMD_ASS_START);
7057 if (rc) {
7058 PRINT_WARN("IPV6 start assist (version 6) failed "
7059 "on %s: 0x%x\n",
7060 QETH_CARD_IFNAME(card), rc);
7061 return rc;
7062 }
7063 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7064 IPA_CMD_ASS_START);
7065 if (rc) {
7066 PRINT_WARN("Could not enable passthrough "
7067 "on %s: 0x%x\n",
7068 QETH_CARD_IFNAME(card), rc);
7069 return rc;
7070 }
7071 PRINT_INFO("IPV6 enabled \n");
7072 return 0;
7073}
7074
7075#endif
7076
7077static int
7078qeth_start_ipa_ipv6(struct qeth_card *card)
7079{
7080 int rc = 0;
7081#ifdef CONFIG_QETH_IPV6
7082 QETH_DBF_TEXT(trace,3,"strtipv6");
7083
7084 if (!qeth_is_supported(card, IPA_IPV6)) {
7085 PRINT_WARN("IPv6 not supported on %s\n",
7086 QETH_CARD_IFNAME(card));
7087 return 0;
7088 }
7089 rc = qeth_softsetup_ipv6(card);
7090#endif
7091 return rc ;
7092}
7093
7094static int
7095qeth_start_ipa_broadcast(struct qeth_card *card)
7096{
7097 int rc;
7098
7099 QETH_DBF_TEXT(trace,3,"stbrdcst");
7100 card->info.broadcast_capable = 0;
7101 if (!qeth_is_supported(card, IPA_FILTERING)) {
7102 PRINT_WARN("Broadcast not supported on %s\n",
7103 QETH_CARD_IFNAME(card));
7104 rc = -EOPNOTSUPP;
7105 goto out;
7106 }
7107 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7108 IPA_CMD_ASS_START, 0);
7109 if (rc) {
7110 PRINT_WARN("Could not enable broadcasting filtering "
7111 "on %s: 0x%x\n",
7112 QETH_CARD_IFNAME(card), rc);
7113 goto out;
7114 }
7115
7116 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7117 IPA_CMD_ASS_CONFIGURE, 1);
7118 if (rc) {
7119 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7120 QETH_CARD_IFNAME(card), rc);
7121 goto out;
7122 }
7123 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7124 PRINT_INFO("Broadcast enabled \n");
7125 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7126 IPA_CMD_ASS_ENABLE, 1);
7127 if (rc) {
7128 PRINT_WARN("Could not set up broadcast echo filtering on "
7129 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7130 goto out;
7131 }
7132 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7133out:
7134 if (card->info.broadcast_capable)
7135 card->dev->flags |= IFF_BROADCAST;
7136 else
7137 card->dev->flags &= ~IFF_BROADCAST;
7138 return rc;
7139}
7140
7141static int
7142qeth_send_checksum_command(struct qeth_card *card)
7143{
7144 int rc;
7145
7146 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7147 IPA_CMD_ASS_START, 0);
7148 if (rc) {
7149 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7150 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7151 QETH_CARD_IFNAME(card), rc);
7152 return rc;
7153 }
7154 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7155 IPA_CMD_ASS_ENABLE,
7156 card->info.csum_mask);
7157 if (rc) {
7158 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7159 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7160 QETH_CARD_IFNAME(card), rc);
7161 return rc;
7162 }
7163 return 0;
7164}
7165
7166static int
7167qeth_start_ipa_checksum(struct qeth_card *card)
7168{
7169 int rc = 0;
7170
7171 QETH_DBF_TEXT(trace,3,"strtcsum");
7172
7173 if (card->options.checksum_type == NO_CHECKSUMMING) {
7174 PRINT_WARN("Using no checksumming on %s.\n",
7175 QETH_CARD_IFNAME(card));
7176 return 0;
7177 }
7178 if (card->options.checksum_type == SW_CHECKSUMMING) {
7179 PRINT_WARN("Using SW checksumming on %s.\n",
7180 QETH_CARD_IFNAME(card));
7181 return 0;
7182 }
7183 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7184 PRINT_WARN("Inbound HW Checksumming not "
7185 "supported on %s,\ncontinuing "
7186 "using Inbound SW Checksumming\n",
7187 QETH_CARD_IFNAME(card));
7188 card->options.checksum_type = SW_CHECKSUMMING;
7189 return 0;
7190 }
7191 rc = qeth_send_checksum_command(card);
7192 if (!rc) {
7193 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7194 }
7195 return rc;
7196}
7197
7198static int
7199qeth_start_ipa_tso(struct qeth_card *card)
7200{
7201 int rc;
7202
7203 QETH_DBF_TEXT(trace,3,"sttso");
7204
7205 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7206 PRINT_WARN("Outbound TSO not supported on %s\n",
7207 QETH_CARD_IFNAME(card));
7208 rc = -EOPNOTSUPP;
7209 } else {
7210 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7211 IPA_CMD_ASS_START,0);
7212 if (rc)
7213 PRINT_WARN("Could not start outbound TSO "
7214 "assist on %s: rc=%i\n",
7215 QETH_CARD_IFNAME(card), rc);
7216 else
7217 PRINT_INFO("Outbound TSO enabled\n");
7218 }
7219 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7220 card->options.large_send = QETH_LARGE_SEND_NO;
7221 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7222 }
7223 return rc;
7224}
7225
7226static int
7227qeth_start_ipassists(struct qeth_card *card)
7228{
7229 QETH_DBF_TEXT(trace,3,"strtipas");
7230 qeth_start_ipa_arp_processing(card); /* go on*/
7231 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7232 qeth_start_ipa_source_mac(card); /* go on*/
7233 qeth_start_ipa_vlan(card); /* go on*/
7234 qeth_start_ipa_multicast(card); /* go on*/
7235 qeth_start_ipa_ipv6(card); /* go on*/
7236 qeth_start_ipa_broadcast(card); /* go on*/
7237 qeth_start_ipa_checksum(card); /* go on*/
7238 qeth_start_ipa_tso(card); /* go on*/
7239 return 0;
7240}
7241
7242static int
7243qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7244 enum qeth_prot_versions prot)
7245{
7246 int rc;
7247 struct qeth_ipa_cmd *cmd;
7248 struct qeth_cmd_buffer *iob;
7249
7250 QETH_DBF_TEXT(trace,4,"setroutg");
7251 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7252 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7253 cmd->data.setrtg.type = (type);
7254 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7255
7256 return rc;
7257
7258}
7259
7260static void
7261qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7262 enum qeth_prot_versions prot)
7263{
7264 if (card->info.type == QETH_CARD_TYPE_IQD) {
7265 switch (*type) {
7266 case NO_ROUTER:
7267 case PRIMARY_CONNECTOR:
7268 case SECONDARY_CONNECTOR:
7269 case MULTICAST_ROUTER:
7270 return;
7271 default:
7272 goto out_inval;
7273 }
7274 } else {
7275 switch (*type) {
7276 case NO_ROUTER:
7277 case PRIMARY_ROUTER:
7278 case SECONDARY_ROUTER:
7279 return;
7280 case MULTICAST_ROUTER:
7281 if (qeth_is_ipafunc_supported(card, prot,
7282 IPA_OSA_MC_ROUTER))
7283 return;
7284 default:
7285 goto out_inval;
7286 }
7287 }
7288out_inval:
7289 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7290 "Router status set to 'no router'.\n",
7291 ((*type == PRIMARY_ROUTER)? "primary router" :
7292 (*type == SECONDARY_ROUTER)? "secondary router" :
7293 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7294 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7295 (*type == MULTICAST_ROUTER)? "multicast router" :
7296 "unknown"),
7297 card->dev->name);
7298 *type = NO_ROUTER;
7299}
7300
7301int
7302qeth_setrouting_v4(struct qeth_card *card)
7303{
7304 int rc;
7305
7306 QETH_DBF_TEXT(trace,3,"setrtg4");
7307
7308 qeth_correct_routing_type(card, &card->options.route4.type,
7309 QETH_PROT_IPV4);
7310
7311 rc = qeth_send_setrouting(card, card->options.route4.type,
7312 QETH_PROT_IPV4);
7313 if (rc) {
7314 card->options.route4.type = NO_ROUTER;
7315 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7316 "Type set to 'no router'.\n",
7317 rc, QETH_CARD_IFNAME(card));
7318 }
7319 return rc;
7320}
7321
7322int
7323qeth_setrouting_v6(struct qeth_card *card)
7324{
7325 int rc = 0;
7326
7327 QETH_DBF_TEXT(trace,3,"setrtg6");
7328#ifdef CONFIG_QETH_IPV6
7329
8b98a37c
FP		 7330 if (!qeth_is_supported(card, IPA_IPV6))
7331 return 0;
1da177e4
LT		 7332 qeth_correct_routing_type(card, &card->options.route6.type,
7333 QETH_PROT_IPV6);
7334
1da177e4
LT		 7335 rc = qeth_send_setrouting(card, card->options.route6.type,
7336 QETH_PROT_IPV6);
7337 if (rc) {
7338 card->options.route6.type = NO_ROUTER;
7339 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7340 "Type set to 'no router'.\n",
7341 rc, QETH_CARD_IFNAME(card));
7342 }
7343#endif
7344 return rc;
7345}
7346
7347int
9cb90de8 7348qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
1da177e4
LT		 7349{
7350 int rc = 0;
7351
9cb90de8
FP		 7352 if (card->dev == NULL) {
7353 card->options.large_send = type;
1da177e4 7354 return 0;
9cb90de8 7355 }
b85e1fa1
UB		 7356 if (card->state == CARD_STATE_UP)
7357 netif_tx_disable(card->dev);
9cb90de8 7358 card->options.large_send = type;
1da177e4
LT		 7359 switch (card->options.large_send) {
7360 case QETH_LARGE_SEND_EDDP:
7361 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7362 break;
7363 case QETH_LARGE_SEND_TSO:
7364 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7365 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7366 } else {
7367 PRINT_WARN("TSO not supported on %s. "
7368 "large_send set to 'no'.\n",
7369 card->dev->name);
7370 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7371 card->options.large_send = QETH_LARGE_SEND_NO;
7372 rc = -EOPNOTSUPP;
7373 }
7374 break;
7375 default: /* includes QETH_LARGE_SEND_NO */
7376 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7377 break;
7378 }
b85e1fa1
UB		 7379 if (card->state == CARD_STATE_UP)
7380 netif_wake_queue(card->dev);
1da177e4
LT		 7381 return rc;
7382}
7383
7384/*
7385 * softsetup card: init IPA stuff
7386 */
7387static int
7388qeth_softsetup_card(struct qeth_card *card)
7389{
7390 int rc;
7391
7392 QETH_DBF_TEXT(setup, 2, "softsetp");
7393
7394 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7395 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7396 if (rc == 0xe080){
7397 PRINT_WARN("LAN on card %s if offline! "
7398 "Continuing softsetup.\n",
7399 CARD_BUS_ID(card));
7400 card->lan_online = 0;
7401 } else
7402 return rc;
7403 } else
7404 card->lan_online = 1;
500f83ab
UB		 7405 if (card->info.type==QETH_CARD_TYPE_OSN)
7406 goto out;
66cc5d5a 7407 qeth_set_large_send(card, card->options.large_send);
1da177e4
LT		 7408 if (card->options.layer2) {
7409 card->dev->features |=
7410 NETIF_F_HW_VLAN_FILTER |
7411 NETIF_F_HW_VLAN_TX |
7412 NETIF_F_HW_VLAN_RX;
7413 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7414 card->info.broadcast_capable=1;
7415 if ((rc = qeth_layer2_initialize(card))) {
7416 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7417 return rc;
7418 }
7419#ifdef CONFIG_QETH_VLAN
7420 qeth_layer2_process_vlans(card, 0);
7421#endif
7422 goto out;
7423 }
1da177e4
LT		 7424 if ((rc = qeth_setadapter_parms(card)))
7425 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7426 if ((rc = qeth_start_ipassists(card)))
7427 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7428 if ((rc = qeth_setrouting_v4(card)))
7429 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7430 if ((rc = qeth_setrouting_v6(card)))
7431 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7432out:
b85e1fa1 7433 netif_tx_disable(card->dev);
1da177e4
LT		 7434 return 0;
7435}
7436
7437#ifdef CONFIG_QETH_IPV6
7438static int
7439qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7440 unsigned long data)
7441{
7442 struct qeth_ipa_cmd *cmd;
7443
7444 cmd = (struct qeth_ipa_cmd *) data;
7445 if (cmd->hdr.return_code == 0)
7446 card->info.unique_id = *((__u16 *)
7447 &cmd->data.create_destroy_addr.unique_id[6]);
7448 else {
7449 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7450 UNIQUE_ID_NOT_BY_CARD;
7451 PRINT_WARN("couldn't get a unique id from the card on device "
7452 "%s (result=x%x), using default id. ipv6 "
7453 "autoconfig on other lpars may lead to duplicate "
7454 "ip addresses. please use manually "
7455 "configured ones.\n",
7456 CARD_BUS_ID(card), cmd->hdr.return_code);
7457 }
7458 return 0;
7459}
7460#endif
7461
7462static int
7463qeth_put_unique_id(struct qeth_card *card)
7464{
7465
7466 int rc = 0;
7467#ifdef CONFIG_QETH_IPV6
7468 struct qeth_cmd_buffer *iob;
7469 struct qeth_ipa_cmd *cmd;
7470
7471 QETH_DBF_TEXT(trace,2,"puniqeid");
7472
7473 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7474 UNIQUE_ID_NOT_BY_CARD)
7475 return -1;
7476 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7477 QETH_PROT_IPV6);
7478 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7479 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7480 card->info.unique_id;
7481 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7482 card->dev->dev_addr, OSA_ADDR_LEN);
7483 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7484#else
7485 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7486 UNIQUE_ID_NOT_BY_CARD;
7487#endif
7488 return rc;
7489}
7490
7491/**
7492 * Clear IP List
7493 */
7494static void
7495qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7496{
7497 struct qeth_ipaddr *addr, *tmp;
7498 unsigned long flags;
7499
7500 QETH_DBF_TEXT(trace,4,"clearip");
7501 spin_lock_irqsave(&card->ip_lock, flags);
7502 /* clear todo list */
7503 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7504 list_del(&addr->entry);
7505 kfree(addr);
7506 }
7507
7508 while (!list_empty(&card->ip_list)) {
7509 addr = list_entry(card->ip_list.next,
7510 struct qeth_ipaddr, entry);
7511 list_del_init(&addr->entry);
7512 if (clean) {
7513 spin_unlock_irqrestore(&card->ip_lock, flags);
7514 qeth_deregister_addr_entry(card, addr);
7515 spin_lock_irqsave(&card->ip_lock, flags);
7516 }
7517 if (!recover || addr->is_multicast) {
7518 kfree(addr);
7519 continue;
7520 }
7521 list_add_tail(&addr->entry, card->ip_tbd_list);
7522 }
7523 spin_unlock_irqrestore(&card->ip_lock, flags);
7524}
7525
7526static void
7527qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7528 int clear_start_mask)
7529{
7530 unsigned long flags;
7531
7532 spin_lock_irqsave(&card->thread_mask_lock, flags);
7533 card->thread_allowed_mask = threads;
7534 if (clear_start_mask)
7535 card->thread_start_mask &= threads;
7536 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7537 wake_up(&card->wait_q);
7538}
7539
4d284cac 7540static int
1da177e4
LT		 7541qeth_threads_running(struct qeth_card *card, unsigned long threads)
7542{
7543 unsigned long flags;
7544 int rc = 0;
7545
7546 spin_lock_irqsave(&card->thread_mask_lock, flags);
7547 rc = (card->thread_running_mask & threads);
7548 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7549 return rc;
7550}
7551
7552static int
7553qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7554{
7555 return wait_event_interruptible(card->wait_q,
7556 qeth_threads_running(card, threads) == 0);
7557}
7558
7559static int
05e08a2a 7560qeth_stop_card(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7561{
7562 int rc = 0;
7563
7564 QETH_DBF_TEXT(setup ,2,"stopcard");
7565 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7566
7567 qeth_set_allowed_threads(card, 0, 1);
7568 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7569 return -ERESTARTSYS;
7570 if (card->read.state == CH_STATE_UP &&
7571 card->write.state == CH_STATE_UP &&
7572 (card->state == CARD_STATE_UP)) {
e82b0f2c 7573 if (recovery_mode &&
500f83ab 7574 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7575 qeth_stop(card->dev);
7576 } else {
7577 rtnl_lock();
7578 dev_close(card->dev);
7579 rtnl_unlock();
7580 }
1da177e4
LT		 7581 if (!card->use_hard_stop) {
7582 __u8 *mac = &card->dev->dev_addr[0];
7583 rc = qeth_layer2_send_delmac(card, mac);
7584 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7585 if ((rc = qeth_send_stoplan(card)))
7586 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7587 }
7588 card->state = CARD_STATE_SOFTSETUP;
7589 }
7590 if (card->state == CARD_STATE_SOFTSETUP) {
7591#ifdef CONFIG_QETH_VLAN
7592 if (card->options.layer2)
7593 qeth_layer2_process_vlans(card, 1);
7594#endif
7595 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7596 qeth_clear_ipacmd_list(card);
7597 card->state = CARD_STATE_HARDSETUP;
7598 }
7599 if (card->state == CARD_STATE_HARDSETUP) {
7600 if ((!card->use_hard_stop) &&
7601 (!card->options.layer2))
7602 if ((rc = qeth_put_unique_id(card)))
7603 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7604 qeth_qdio_clear_card(card, 0);
7605 qeth_clear_qdio_buffers(card);
7606 qeth_clear_working_pool_list(card);
7607 card->state = CARD_STATE_DOWN;
7608 }
7609 if (card->state == CARD_STATE_DOWN) {
7610 qeth_clear_cmd_buffers(&card->read);
7611 qeth_clear_cmd_buffers(&card->write);
7612 }
7613 card->use_hard_stop = 0;
7614 return rc;
7615}
7616
7617
7618static int
7619qeth_get_unique_id(struct qeth_card *card)
7620{
7621 int rc = 0;
7622#ifdef CONFIG_QETH_IPV6
7623 struct qeth_cmd_buffer *iob;
7624 struct qeth_ipa_cmd *cmd;
7625
7626 QETH_DBF_TEXT(setup, 2, "guniqeid");
7627
7628 if (!qeth_is_supported(card,IPA_IPV6)) {
7629 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7630 UNIQUE_ID_NOT_BY_CARD;
7631 return 0;
7632 }
7633
7634 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7635 QETH_PROT_IPV6);
7636 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7637 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7638 card->info.unique_id;
7639
7640 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7641#else
7642 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7643 UNIQUE_ID_NOT_BY_CARD;
7644#endif
7645 return rc;
7646}
7647static void
7648qeth_print_status_with_portname(struct qeth_card *card)
7649{
7650 char dbf_text[15];
7651 int i;
7652
7653 sprintf(dbf_text, "%s", card->info.portname + 1);
7654 for (i = 0; i < 8; i++)
7655 dbf_text[i] =
7656 (char) _ebcasc[(__u8) dbf_text[i]];
7657 dbf_text[8] = 0;
7658 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7659 "with link type %s (portname: %s)\n",
7660 CARD_RDEV_ID(card),
7661 CARD_WDEV_ID(card),
7662 CARD_DDEV_ID(card),
7663 qeth_get_cardname(card),
7664 (card->info.mcl_level[0]) ? " (level: " : "",
7665 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7666 (card->info.mcl_level[0]) ? ")" : "",
7667 qeth_get_cardname_short(card),
7668 dbf_text);
7669
7670}
7671
7672static void
7673qeth_print_status_no_portname(struct qeth_card *card)
7674{
7675 if (card->info.portname[0])
7676 printk("qeth: Device %s/%s/%s is a%s "
7677 "card%s%s%s\nwith link type %s "
7678 "(no portname needed by interface).\n",
7679 CARD_RDEV_ID(card),
7680 CARD_WDEV_ID(card),
7681 CARD_DDEV_ID(card),
7682 qeth_get_cardname(card),
7683 (card->info.mcl_level[0]) ? " (level: " : "",
7684 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7685 (card->info.mcl_level[0]) ? ")" : "",
7686 qeth_get_cardname_short(card));
7687 else
7688 printk("qeth: Device %s/%s/%s is a%s "
7689 "card%s%s%s\nwith link type %s.\n",
7690 CARD_RDEV_ID(card),
7691 CARD_WDEV_ID(card),
7692 CARD_DDEV_ID(card),
7693 qeth_get_cardname(card),
7694 (card->info.mcl_level[0]) ? " (level: " : "",
7695 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7696 (card->info.mcl_level[0]) ? ")" : "",
7697 qeth_get_cardname_short(card));
7698}
7699
7700static void
7701qeth_print_status_message(struct qeth_card *card)
7702{
7703 switch (card->info.type) {
7704 case QETH_CARD_TYPE_OSAE:
7705 /* VM will use a non-zero first character
7706 * to indicate a HiperSockets like reporting
7707 * of the level OSA sets the first character to zero
7708 * */
7709 if (!card->info.mcl_level[0]) {
7710 sprintf(card->info.mcl_level,"%02x%02x",
7711 card->info.mcl_level[2],
7712 card->info.mcl_level[3]);
7713
7714 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7715 break;
7716 }
7717 /* fallthrough */
7718 case QETH_CARD_TYPE_IQD:
7719 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7720 card->info.mcl_level[0]];
7721 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7722 card->info.mcl_level[1]];
7723 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7724 card->info.mcl_level[2]];
7725 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7726 card->info.mcl_level[3]];
7727 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7728 break;
7729 default:
7730 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7731 }
7732 if (card->info.portname_required)
7733 qeth_print_status_with_portname(card);
7734 else
7735 qeth_print_status_no_portname(card);
7736}
7737
7738static int
7739qeth_register_netdev(struct qeth_card *card)
7740{
7741 QETH_DBF_TEXT(setup, 3, "regnetd");
e82b0f2c 7742 if (card->dev->reg_state != NETREG_UNINITIALIZED)
1da177e4 7743 return 0;
1da177e4
LT		 7744 /* sysfs magic */
7745 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7746 return register_netdev(card->dev);
7747}
7748
7749static void
05e08a2a 7750qeth_start_again(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7751{
7752 QETH_DBF_TEXT(setup ,2, "startag");
7753
e82b0f2c 7754 if (recovery_mode &&
500f83ab 7755 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7756 qeth_open(card->dev);
7757 } else {
7758 rtnl_lock();
7759 dev_open(card->dev);
7760 rtnl_unlock();
7761 }
1da177e4
LT		 7762 /* this also sets saved unicast addresses */
7763 qeth_set_multicast_list(card->dev);
7764}
7765
7766
7767/* Layer 2 specific stuff */
7768#define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7769 if (card->options.option == value) { \
7770 PRINT_ERR("%s not supported with layer 2 " \
7771 "functionality, ignoring option on read" \
7772 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7773 card->options.option = reset_value; \
7774 }
7775#define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7776 if (card->options.option != value) { \
7777 PRINT_ERR("%s not supported with layer 2 " \
7778 "functionality, ignoring option on read" \
7779 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7780 card->options.option = reset_value; \
7781 }
7782
7783
7784static void qeth_make_parameters_consistent(struct qeth_card *card)
7785{
7786
500f83ab
UB		 7787 if (card->options.layer2 == 0)
7788 return;
7789 if (card->info.type == QETH_CARD_TYPE_OSN)
7790 return;
7791 if (card->info.type == QETH_CARD_TYPE_IQD) {
7792 PRINT_ERR("Device %s does not support layer 2 functionality." \
7793 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7794 card->options.layer2 = 0;
7795 return;
7796 }
7797 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7798 "Routing options are");
1da177e4 7799#ifdef CONFIG_QETH_IPV6
500f83ab
UB		 7800 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7801 "Routing options are");
1da177e4 7802#endif
500f83ab
UB		 7803 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7804 QETH_CHECKSUM_DEFAULT,
7805 "Checksumming options are");
7806 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7807 QETH_TR_BROADCAST_ALLRINGS,
7808 "Broadcast mode options are");
7809 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7810 QETH_TR_MACADDR_NONCANONICAL,
7811 "Canonical MAC addr options are");
7812 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7813 "Broadcast faking options are");
7814 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7815 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7816 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
1da177e4
LT		 7817}
7818
7819
7820static int
05e08a2a 7821__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1da177e4
LT		 7822{
7823 struct qeth_card *card = gdev->dev.driver_data;
7824 int rc = 0;
7825 enum qeth_card_states recover_flag;
7826
7827 BUG_ON(!card);
7828 QETH_DBF_TEXT(setup ,2, "setonlin");
7829 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7830
7831 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7832 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7833 PRINT_WARN("set_online of card %s interrupted by user!\n",
7834 CARD_BUS_ID(card));
7835 return -ERESTARTSYS;
7836 }
7837
7838 recover_flag = card->state;
7839 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7840 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7841 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7842 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7843 return -EIO;
7844 }
7845
500f83ab 7846 qeth_make_parameters_consistent(card);
1da177e4
LT		 7847
7848 if ((rc = qeth_hardsetup_card(card))){
7849 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7850 goto out_remove;
7851 }
7852 card->state = CARD_STATE_HARDSETUP;
7853
7854 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7855 rc = qeth_get_unique_id(card);
7856
7857 if (rc && card->options.layer2 == 0) {
7858 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7859 goto out_remove;
7860 }
7861 qeth_print_status_message(card);
7862 if ((rc = qeth_register_netdev(card))){
7863 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7864 goto out_remove;
7865 }
7866 if ((rc = qeth_softsetup_card(card))){
7867 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7868 goto out_remove;
7869 }
1da177e4
LT		 7870
7871 if ((rc = qeth_init_qdio_queues(card))){
7872 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7873 goto out_remove;
7874 }
09d2d38a 7875 card->state = CARD_STATE_SOFTSETUP;
4965e97f
FP		 7876 netif_carrier_on(card->dev);
7877
1da177e4
LT		 7878 qeth_set_allowed_threads(card, 0xffffffff, 0);
7879 if (recover_flag == CARD_STATE_RECOVER)
05e08a2a 7880 qeth_start_again(card, recovery_mode);
1da177e4
LT		 7881 qeth_notify_processes();
7882 return 0;
7883out_remove:
7884 card->use_hard_stop = 1;
05e08a2a 7885 qeth_stop_card(card, 0);
1da177e4
LT		 7886 ccw_device_set_offline(CARD_DDEV(card));
7887 ccw_device_set_offline(CARD_WDEV(card));
7888 ccw_device_set_offline(CARD_RDEV(card));
7889 if (recover_flag == CARD_STATE_RECOVER)
7890 card->state = CARD_STATE_RECOVER;
7891 else
7892 card->state = CARD_STATE_DOWN;
7893 return -ENODEV;
7894}
7895
05e08a2a
FP		 7896static int
7897qeth_set_online(struct ccwgroup_device *gdev)
7898{
7899 return __qeth_set_online(gdev, 0);
7900}
7901
1da177e4 7902static struct ccw_device_id qeth_ids[] = {
d2c993d8
HC		 7903 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7904 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7905 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
1da177e4
LT		 7906 {},
7907};
7908MODULE_DEVICE_TABLE(ccw, qeth_ids);
7909
7910struct device *qeth_root_dev = NULL;
7911
7912struct ccwgroup_driver qeth_ccwgroup_driver = {
7913 .owner = THIS_MODULE,
7914 .name = "qeth",
7915 .driver_id = 0xD8C5E3C8,
7916 .probe = qeth_probe_device,
7917 .remove = qeth_remove_device,
7918 .set_online = qeth_set_online,
7919 .set_offline = qeth_set_offline,
7920};
7921
7922struct ccw_driver qeth_ccw_driver = {
7923 .name = "qeth",
7924 .ids = qeth_ids,
7925 .probe = ccwgroup_probe_ccwdev,
7926 .remove = ccwgroup_remove_ccwdev,
7927};
7928
7929
7930static void
7931qeth_unregister_dbf_views(void)
7932{
7933 if (qeth_dbf_setup)
7934 debug_unregister(qeth_dbf_setup);
7935 if (qeth_dbf_qerr)
7936 debug_unregister(qeth_dbf_qerr);
7937 if (qeth_dbf_sense)
7938 debug_unregister(qeth_dbf_sense);
7939 if (qeth_dbf_misc)
7940 debug_unregister(qeth_dbf_misc);
7941 if (qeth_dbf_data)
7942 debug_unregister(qeth_dbf_data);
7943 if (qeth_dbf_control)
7944 debug_unregister(qeth_dbf_control);
7945 if (qeth_dbf_trace)
7946 debug_unregister(qeth_dbf_trace);
7947}
7948static int
7949qeth_register_dbf_views(void)
7950{
7951 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
66a464db 7952 QETH_DBF_SETUP_PAGES,
1da177e4
LT		 7953 QETH_DBF_SETUP_NR_AREAS,
7954 QETH_DBF_SETUP_LEN);
7955 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
66a464db 7956 QETH_DBF_MISC_PAGES,
1da177e4
LT		 7957 QETH_DBF_MISC_NR_AREAS,
7958 QETH_DBF_MISC_LEN);
7959 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
66a464db 7960 QETH_DBF_DATA_PAGES,
1da177e4
LT		 7961 QETH_DBF_DATA_NR_AREAS,
7962 QETH_DBF_DATA_LEN);
7963 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
66a464db 7964 QETH_DBF_CONTROL_PAGES,
1da177e4
LT		 7965 QETH_DBF_CONTROL_NR_AREAS,
7966 QETH_DBF_CONTROL_LEN);
7967 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
66a464db 7968 QETH_DBF_SENSE_PAGES,
1da177e4
LT		 7969 QETH_DBF_SENSE_NR_AREAS,
7970 QETH_DBF_SENSE_LEN);
7971 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
66a464db 7972 QETH_DBF_QERR_PAGES,
1da177e4
LT		 7973 QETH_DBF_QERR_NR_AREAS,
7974 QETH_DBF_QERR_LEN);
7975 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
66a464db 7976 QETH_DBF_TRACE_PAGES,
1da177e4
LT		 7977 QETH_DBF_TRACE_NR_AREAS,
7978 QETH_DBF_TRACE_LEN);
7979
7980 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
7981 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
7982 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
7983 (qeth_dbf_trace == NULL)) {
7984 qeth_unregister_dbf_views();
7985 return -ENOMEM;
7986 }
7987 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7988 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7989
7990 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7991 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7992
7993 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7994 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7995
7996 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7997 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7998
7999 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8000 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8001
8002 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8003 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8004
8005 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8006 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8007
8008 return 0;
8009}
8010
8011#ifdef CONFIG_QETH_IPV6
8012extern struct neigh_table arp_tbl;
8013static struct neigh_ops *arp_direct_ops;
8014static int (*qeth_old_arp_constructor) (struct neighbour *);
8015
8016static struct neigh_ops arp_direct_ops_template = {
8017 .family = AF_INET,
1da177e4
LT		 8018 .solicit = NULL,
8019 .error_report = NULL,
8020 .output = dev_queue_xmit,
8021 .connected_output = dev_queue_xmit,
8022 .hh_output = dev_queue_xmit,
8023 .queue_xmit = dev_queue_xmit
8024};
8025
8026static int
8027qeth_arp_constructor(struct neighbour *neigh)
8028{
8029 struct net_device *dev = neigh->dev;
8030 struct in_device *in_dev;
8031 struct neigh_parms *parms;
8032 struct qeth_card *card;
8033
8034 card = qeth_get_card_from_dev(dev);
8035 if (card == NULL)
8036 goto out;
8037 if((card->options.layer2) ||
8038 (card->dev->hard_header == qeth_fake_header))
8039 goto out;
8040
8041 rcu_read_lock();
e5ed6399 8042 in_dev = __in_dev_get_rcu(dev);
1da177e4
LT		 8043 if (in_dev == NULL) {
8044 rcu_read_unlock();
8045 return -EINVAL;
8046 }
8047
8048 parms = in_dev->arp_parms;
8049 __neigh_parms_put(neigh->parms);
8050 neigh->parms = neigh_parms_clone(parms);
8051 rcu_read_unlock();
8052
fd683222 8053 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
1da177e4
LT		 8054 neigh->nud_state = NUD_NOARP;
8055 neigh->ops = arp_direct_ops;
8056 neigh->output = neigh->ops->queue_xmit;
8057 return 0;
8058out:
8059 return qeth_old_arp_constructor(neigh);
8060}
8061#endif /*CONFIG_QETH_IPV6*/
8062
8063/*
8064 * IP address takeover related functions
8065 */
8066static void
8067qeth_clear_ipato_list(struct qeth_card *card)
8068{
8069 struct qeth_ipato_entry *ipatoe, *tmp;
8070 unsigned long flags;
8071
8072 spin_lock_irqsave(&card->ip_lock, flags);
8073 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8074 list_del(&ipatoe->entry);
8075 kfree(ipatoe);
8076 }
8077 spin_unlock_irqrestore(&card->ip_lock, flags);
8078}
8079
8080int
8081qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8082{
8083 struct qeth_ipato_entry *ipatoe;
8084 unsigned long flags;
8085 int rc = 0;
8086
8087 QETH_DBF_TEXT(trace, 2, "addipato");
8088 spin_lock_irqsave(&card->ip_lock, flags);
8089 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8090 if (ipatoe->proto != new->proto)
8091 continue;
8092 if (!memcmp(ipatoe->addr, new->addr,
8093 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8094 (ipatoe->mask_bits == new->mask_bits)){
8095 PRINT_WARN("ipato entry already exists!\n");
8096 rc = -EEXIST;
8097 break;
8098 }
8099 }
8100 if (!rc) {
8101 list_add_tail(&new->entry, &card->ipato.entries);
8102 }
8103 spin_unlock_irqrestore(&card->ip_lock, flags);
8104 return rc;
8105}
8106
8107void
8108qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8109 u8 *addr, int mask_bits)
8110{
8111 struct qeth_ipato_entry *ipatoe, *tmp;
8112 unsigned long flags;
8113
8114 QETH_DBF_TEXT(trace, 2, "delipato");
8115 spin_lock_irqsave(&card->ip_lock, flags);
8116 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8117 if (ipatoe->proto != proto)
8118 continue;
8119 if (!memcmp(ipatoe->addr, addr,
8120 (proto == QETH_PROT_IPV4)? 4:16) &&
8121 (ipatoe->mask_bits == mask_bits)){
8122 list_del(&ipatoe->entry);
8123 kfree(ipatoe);
8124 }
8125 }
8126 spin_unlock_irqrestore(&card->ip_lock, flags);
8127}
8128
4d284cac 8129static void
1da177e4
LT		 8130qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8131{
8132 int i, j;
8133 u8 octet;
8134
8135 for (i = 0; i < len; ++i){
8136 octet = addr[i];
8137 for (j = 7; j >= 0; --j){
8138 bits[i*8 + j] = octet & 1;
8139 octet >>= 1;
8140 }
8141 }
8142}
8143
8144static int
8145qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8146{
8147 struct qeth_ipato_entry *ipatoe;
8148 u8 addr_bits[128] = {0, };
8149 u8 ipatoe_bits[128] = {0, };
8150 int rc = 0;
8151
8152 if (!card->ipato.enabled)
8153 return 0;
8154
8155 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8156 (addr->proto == QETH_PROT_IPV4)? 4:16);
8157 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8158 if (addr->proto != ipatoe->proto)
8159 continue;
8160 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8161 (ipatoe->proto==QETH_PROT_IPV4) ?
8162 4:16);
8163 if (addr->proto == QETH_PROT_IPV4)
8164 rc = !memcmp(addr_bits, ipatoe_bits,
8165 min(32, ipatoe->mask_bits));
8166 else
8167 rc = !memcmp(addr_bits, ipatoe_bits,
8168 min(128, ipatoe->mask_bits));
8169 if (rc)
8170 break;
8171 }
8172 /* invert? */
8173 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8174 rc = !rc;
8175 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8176 rc = !rc;
8177
8178 return rc;
8179}
8180
8181/*
8182 * VIPA related functions
8183 */
8184int
8185qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8186 const u8 *addr)
8187{
8188 struct qeth_ipaddr *ipaddr;
8189 unsigned long flags;
8190 int rc = 0;
8191
8192 ipaddr = qeth_get_addr_buffer(proto);
8193 if (ipaddr){
8194 if (proto == QETH_PROT_IPV4){
8195 QETH_DBF_TEXT(trace, 2, "addvipa4");
8196 memcpy(&ipaddr->u.a4.addr, addr, 4);
8197 ipaddr->u.a4.mask = 0;
8198#ifdef CONFIG_QETH_IPV6
8199 } else if (proto == QETH_PROT_IPV6){
8200 QETH_DBF_TEXT(trace, 2, "addvipa6");
8201 memcpy(&ipaddr->u.a6.addr, addr, 16);
8202 ipaddr->u.a6.pfxlen = 0;
8203#endif
8204 }
8205 ipaddr->type = QETH_IP_TYPE_VIPA;
8206 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8207 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8208 } else
8209 return -ENOMEM;
8210 spin_lock_irqsave(&card->ip_lock, flags);
8211 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8212 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8213 rc = -EEXIST;
8214 spin_unlock_irqrestore(&card->ip_lock, flags);
8215 if (rc){
8216 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8217 return rc;
8218 }
8219 if (!qeth_add_ip(card, ipaddr))
8220 kfree(ipaddr);
ee2db684 8221 qeth_set_ip_addr_list(card);
1da177e4
LT		 8222 return rc;
8223}
8224
8225void
8226qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8227 const u8 *addr)
8228{
8229 struct qeth_ipaddr *ipaddr;
8230
8231 ipaddr = qeth_get_addr_buffer(proto);
8232 if (ipaddr){
8233 if (proto == QETH_PROT_IPV4){
8234 QETH_DBF_TEXT(trace, 2, "delvipa4");
8235 memcpy(&ipaddr->u.a4.addr, addr, 4);
8236 ipaddr->u.a4.mask = 0;
8237#ifdef CONFIG_QETH_IPV6
8238 } else if (proto == QETH_PROT_IPV6){
8239 QETH_DBF_TEXT(trace, 2, "delvipa6");
8240 memcpy(&ipaddr->u.a6.addr, addr, 16);
8241 ipaddr->u.a6.pfxlen = 0;
8242#endif
8243 }
8244 ipaddr->type = QETH_IP_TYPE_VIPA;
8245 } else
8246 return;
8247 if (!qeth_delete_ip(card, ipaddr))
8248 kfree(ipaddr);
ee2db684 8249 qeth_set_ip_addr_list(card);
1da177e4
LT		 8250}
8251
8252/*
8253 * proxy ARP related functions
8254 */
8255int
8256qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8257 const u8 *addr)
8258{
8259 struct qeth_ipaddr *ipaddr;
8260 unsigned long flags;
8261 int rc = 0;
8262
8263 ipaddr = qeth_get_addr_buffer(proto);
8264 if (ipaddr){
8265 if (proto == QETH_PROT_IPV4){
8266 QETH_DBF_TEXT(trace, 2, "addrxip4");
8267 memcpy(&ipaddr->u.a4.addr, addr, 4);
8268 ipaddr->u.a4.mask = 0;
8269#ifdef CONFIG_QETH_IPV6
8270 } else if (proto == QETH_PROT_IPV6){
8271 QETH_DBF_TEXT(trace, 2, "addrxip6");
8272 memcpy(&ipaddr->u.a6.addr, addr, 16);
8273 ipaddr->u.a6.pfxlen = 0;
8274#endif
8275 }
8276 ipaddr->type = QETH_IP_TYPE_RXIP;
8277 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8278 ipaddr->del_flags = 0;
8279 } else
8280 return -ENOMEM;
8281 spin_lock_irqsave(&card->ip_lock, flags);
8282 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8283 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8284 rc = -EEXIST;
8285 spin_unlock_irqrestore(&card->ip_lock, flags);
8286 if (rc){
8287 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8288 return rc;
8289 }
8290 if (!qeth_add_ip(card, ipaddr))
8291 kfree(ipaddr);
ee2db684 8292 qeth_set_ip_addr_list(card);
1da177e4
LT		 8293 return 0;
8294}
8295
8296void
8297qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8298 const u8 *addr)
8299{
8300 struct qeth_ipaddr *ipaddr;
8301
8302 ipaddr = qeth_get_addr_buffer(proto);
8303 if (ipaddr){
8304 if (proto == QETH_PROT_IPV4){
8305 QETH_DBF_TEXT(trace, 2, "addrxip4");
8306 memcpy(&ipaddr->u.a4.addr, addr, 4);
8307 ipaddr->u.a4.mask = 0;
8308#ifdef CONFIG_QETH_IPV6
8309 } else if (proto == QETH_PROT_IPV6){
8310 QETH_DBF_TEXT(trace, 2, "addrxip6");
8311 memcpy(&ipaddr->u.a6.addr, addr, 16);
8312 ipaddr->u.a6.pfxlen = 0;
8313#endif
8314 }
8315 ipaddr->type = QETH_IP_TYPE_RXIP;
8316 } else
8317 return;
8318 if (!qeth_delete_ip(card, ipaddr))
8319 kfree(ipaddr);
ee2db684 8320 qeth_set_ip_addr_list(card);
1da177e4
LT		 8321}
8322
8323/**
8324 * IP event handler
8325 */
8326static int
8327qeth_ip_event(struct notifier_block *this,
8328 unsigned long event,void *ptr)
8329{
8330 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8331 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8332 struct qeth_ipaddr *addr;
8333 struct qeth_card *card;
8334
8335 QETH_DBF_TEXT(trace,3,"ipevent");
8336 card = qeth_get_card_from_dev(dev);
8337 if (!card)
8338 return NOTIFY_DONE;
8339 if (card->options.layer2)
8340 return NOTIFY_DONE;
8341
8342 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8343 if (addr != NULL) {
8344 addr->u.a4.addr = ifa->ifa_address;
8345 addr->u.a4.mask = ifa->ifa_mask;
8346 addr->type = QETH_IP_TYPE_NORMAL;
8347 } else
8348 goto out;
8349
8350 switch(event) {
8351 case NETDEV_UP:
8352 if (!qeth_add_ip(card, addr))
8353 kfree(addr);
8354 break;
8355 case NETDEV_DOWN:
8356 if (!qeth_delete_ip(card, addr))
8357 kfree(addr);
8358 break;
8359 default:
8360 break;
8361 }
ee2db684 8362 qeth_set_ip_addr_list(card);
1da177e4
LT		 8363out:
8364 return NOTIFY_DONE;
8365}
8366
8367static struct notifier_block qeth_ip_notifier = {
8368 qeth_ip_event,
d2c993d8 8369 NULL,
1da177e4
LT		 8370};
8371
8372#ifdef CONFIG_QETH_IPV6
8373/**
8374 * IPv6 event handler
8375 */
8376static int
8377qeth_ip6_event(struct notifier_block *this,
8378 unsigned long event,void *ptr)
8379{
8380
8381 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8382 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8383 struct qeth_ipaddr *addr;
8384 struct qeth_card *card;
8385
8386 QETH_DBF_TEXT(trace,3,"ip6event");
8387
8388 card = qeth_get_card_from_dev(dev);
8389 if (!card)
8390 return NOTIFY_DONE;
8391 if (!qeth_is_supported(card, IPA_IPV6))
8392 return NOTIFY_DONE;
8393
8394 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8395 if (addr != NULL) {
8396 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8397 addr->u.a6.pfxlen = ifa->prefix_len;
8398 addr->type = QETH_IP_TYPE_NORMAL;
8399 } else
8400 goto out;
8401
8402 switch(event) {
8403 case NETDEV_UP:
8404 if (!qeth_add_ip(card, addr))
8405 kfree(addr);
8406 break;
8407 case NETDEV_DOWN:
8408 if (!qeth_delete_ip(card, addr))
8409 kfree(addr);
8410 break;
8411 default:
8412 break;
8413 }
ee2db684 8414 qeth_set_ip_addr_list(card);
1da177e4
LT		 8415out:
8416 return NOTIFY_DONE;
8417}
8418
8419static struct notifier_block qeth_ip6_notifier = {
8420 qeth_ip6_event,
d2c993d8 8421 NULL,
1da177e4
LT		 8422};
8423#endif
8424
8425static int
66aea23f 8426__qeth_reboot_event_card(struct device *dev, void *data)
1da177e4 8427{
1da177e4
LT		 8428 struct qeth_card *card;
8429
66aea23f
CH		 8430 card = (struct qeth_card *) dev->driver_data;
8431 qeth_clear_ip_list(card, 0, 0);
8432 qeth_qdio_clear_card(card, 0);
8433 return 0;
8434}
8435
8436static int
8437qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8438{
d7cf0d57 8439 int ret;
66aea23f 8440
d7cf0d57
HC		 8441 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8442 __qeth_reboot_event_card);
8443 return ret ? NOTIFY_BAD : NOTIFY_DONE;
1da177e4
LT		 8444}
8445
8446
8447static struct notifier_block qeth_reboot_notifier = {
8448 qeth_reboot_event,
d2c993d8 8449 NULL,
1da177e4
LT		 8450};
8451
8452static int
8453qeth_register_notifiers(void)
8454{
8455 int r;
8456
8457 QETH_DBF_TEXT(trace,5,"regnotif");
8458 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8459 return r;
8460 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8461 goto out_reboot;
8462#ifdef CONFIG_QETH_IPV6
8463 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8464 goto out_ipv4;
8465#endif
8466 return 0;
8467
8468#ifdef CONFIG_QETH_IPV6
8469out_ipv4:
8470 unregister_inetaddr_notifier(&qeth_ip_notifier);
8471#endif
8472out_reboot:
8473 unregister_reboot_notifier(&qeth_reboot_notifier);
8474 return r;
8475}
8476
8477/**
8478 * unregister all event notifiers
8479 */
8480static void
8481qeth_unregister_notifiers(void)
8482{
8483
8484 QETH_DBF_TEXT(trace,5,"unregnot");
8485 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8486 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8487#ifdef CONFIG_QETH_IPV6
8488 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8489#endif /* QETH_IPV6 */
8490
8491}
8492
8493#ifdef CONFIG_QETH_IPV6
8494static int
8495qeth_ipv6_init(void)
8496{
8497 qeth_old_arp_constructor = arp_tbl.constructor;
3d8f3f3c 8498 write_lock_bh(&arp_tbl.lock);
1da177e4 8499 arp_tbl.constructor = qeth_arp_constructor;
3d8f3f3c 8500 write_unlock_bh(&arp_tbl.lock);
1da177e4
LT		 8501
8502 arp_direct_ops = (struct neigh_ops*)
8503 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8504 if (!arp_direct_ops)
8505 return -ENOMEM;
8506
8507 memcpy(arp_direct_ops, &arp_direct_ops_template,
8508 sizeof(struct neigh_ops));
8509
8510 return 0;
8511}
8512
8513static void
8514qeth_ipv6_uninit(void)
8515{
3d8f3f3c 8516 write_lock_bh(&arp_tbl.lock);
1da177e4 8517 arp_tbl.constructor = qeth_old_arp_constructor;
3d8f3f3c 8518 write_unlock_bh(&arp_tbl.lock);
1da177e4
LT		 8519 kfree(arp_direct_ops);
8520}
8521#endif /* CONFIG_QETH_IPV6 */
8522
8523static void
8524qeth_sysfs_unregister(void)
8525{
8b98a37c 8526 s390_root_dev_unregister(qeth_root_dev);
1da177e4
LT		 8527 qeth_remove_driver_attributes();
8528 ccw_driver_unregister(&qeth_ccw_driver);
8529 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
1da177e4 8530}
8b98a37c 8531
1da177e4
LT		 8532/**
8533 * register qeth at sysfs
8534 */
8535static int
8536qeth_sysfs_register(void)
8537{
8b98a37c 8538 int rc;
1da177e4
LT		 8539
8540 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8541 if (rc)
8b98a37c
FP		 8542 goto out;
8543
1da177e4
LT		 8544 rc = ccw_driver_register(&qeth_ccw_driver);
8545 if (rc)
8b98a37c
FP		 8546 goto out_ccw_driver;
8547
1da177e4
LT		 8548 rc = qeth_create_driver_attributes();
8549 if (rc)
8b98a37c
FP		 8550 goto out_qeth_attr;
8551
1da177e4 8552 qeth_root_dev = s390_root_dev_register("qeth");
8b98a37c
FP		 8553 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8554 if (!rc)
8555 goto out;
8556
8557 qeth_remove_driver_attributes();
8558out_qeth_attr:
8559 ccw_driver_unregister(&qeth_ccw_driver);
8560out_ccw_driver:
8561 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8562out:
8563 return rc;
1da177e4
LT		 8564}
8565
8566/***
8567 * init function
8568 */
8569static int __init
8570qeth_init(void)
8571{
8b98a37c 8572 int rc;
1da177e4 8573
e018ba1f 8574 PRINT_INFO("loading %s\n", version);
1da177e4
LT		 8575
8576 INIT_LIST_HEAD(&qeth_card_list.list);
8577 INIT_LIST_HEAD(&qeth_notify_list);
8578 spin_lock_init(&qeth_notify_lock);
8579 rwlock_init(&qeth_card_list.rwlock);
8580
8b98a37c
FP		 8581 rc = qeth_register_dbf_views();
8582 if (rc)
1da177e4 8583 goto out_err;
8b98a37c
FP		 8584
8585 rc = qeth_sysfs_register();
8586 if (rc)
8587 goto out_dbf;
1da177e4
LT		 8588
8589#ifdef CONFIG_QETH_IPV6
8b98a37c
FP		 8590 rc = qeth_ipv6_init();
8591 if (rc) {
8592 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
1da177e4
LT		 8593 goto out_sysfs;
8594 }
8595#endif /* QETH_IPV6 */
8b98a37c
FP		 8596 rc = qeth_register_notifiers();
8597 if (rc)
1da177e4 8598 goto out_ipv6;
8b98a37c
FP		 8599 rc = qeth_create_procfs_entries();
8600 if (rc)
1da177e4
LT		 8601 goto out_notifiers;
8602
8603 return rc;
8604
8605out_notifiers:
8606 qeth_unregister_notifiers();
8607out_ipv6:
8608#ifdef CONFIG_QETH_IPV6
8609 qeth_ipv6_uninit();
1da177e4 8610out_sysfs:
8b98a37c 8611#endif /* QETH_IPV6 */
1da177e4 8612 qeth_sysfs_unregister();
8b98a37c 8613out_dbf:
1da177e4
LT		 8614 qeth_unregister_dbf_views();
8615out_err:
8b98a37c 8616 PRINT_ERR("Initialization failed with code %d\n", rc);
1da177e4
LT		 8617 return rc;
8618}
8619
8620static void
8621__exit qeth_exit(void)
8622{
8623 struct qeth_card *card, *tmp;
8624 unsigned long flags;
8625
8626 QETH_DBF_TEXT(trace,1, "cleanup.");
8627
8628 /*
8629 * Weed would not need to clean up our devices here, because the
8630 * common device layer calls qeth_remove_device for each device
8631 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8632 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8633 * qeth_remove_device called by the common device layer would otherwise
8634 * do a "hard" shutdown (card->use_hard_stop is set to one in
8635 * qeth_remove_device).
8636 */
8637again:
8638 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8639 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8640 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8641 qeth_set_offline(card->gdev);
8642 qeth_remove_device(card->gdev);
8643 goto again;
8644 }
8645 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8646#ifdef CONFIG_QETH_IPV6
8647 qeth_ipv6_uninit();
8648#endif
8649 qeth_unregister_notifiers();
8650 qeth_remove_procfs_entries();
8651 qeth_sysfs_unregister();
8652 qeth_unregister_dbf_views();
8653 printk("qeth: removed\n");
8654}
8655
500f83ab
UB		 8656EXPORT_SYMBOL(qeth_osn_register);
8657EXPORT_SYMBOL(qeth_osn_deregister);
8658EXPORT_SYMBOL(qeth_osn_assist);
1da177e4
LT		 8659module_init(qeth_init);
8660module_exit(qeth_exit);
1387780f 8661MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
1da177e4
LT		 8662MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8663 "Copyright 2000,2003 IBM Corporation\n");
8664
8665MODULE_LICENSE("GPL");
Clone of davem's net-next-2.6 tree