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[SK_BUFF]: Introduce skb_network_header()
[GitHub/mt8127/android_kernel_alcatel_ttab.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));
2504 memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2505 }
1da177e4
LT		 2506 /* is device UP ? */
2507 if (!(card->dev->flags & IFF_UP)){
2508 dev_kfree_skb_any(skb);
2509 continue;
2510 }
330b6369
FP		 2511 if (card->info.type == QETH_CARD_TYPE_OSN)
2512 rxrc = card->osn_info.data_cb(skb);
2513 else
1da177e4
LT		 2514#ifdef CONFIG_QETH_VLAN
2515 if (vlan_tag)
330b6369
FP		 2516 if (card->vlangrp)
2517 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2518 else {
2519 dev_kfree_skb_any(skb);
2520 continue;
2521 }
1da177e4
LT		 2522 else
2523#endif
500f83ab 2524 rxrc = netif_rx(skb);
1da177e4
LT		 2525 card->dev->last_rx = jiffies;
2526 card->stats.rx_packets++;
2527 card->stats.rx_bytes += skb->len;
2528 }
2529}
2530
4d284cac 2531static struct qeth_buffer_pool_entry *
1da177e4
LT		 2532qeth_get_buffer_pool_entry(struct qeth_card *card)
2533{
2534 struct qeth_buffer_pool_entry *entry;
2535
2536 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2537 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2538 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2539 struct qeth_buffer_pool_entry, list);
2540 list_del_init(&entry->list);
2541 return entry;
2542 }
2543 return NULL;
2544}
2545
4d284cac 2546static void
1da177e4
LT		 2547qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2548{
2549 struct qeth_buffer_pool_entry *pool_entry;
2550 int i;
09d2d38a 2551
1da177e4
LT		 2552 pool_entry = qeth_get_buffer_pool_entry(card);
2553 /*
2554 * since the buffer is accessed only from the input_tasklet
2555 * there shouldn't be a need to synchronize; also, since we use
2556 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2557 * buffers
2558 */
2559 BUG_ON(!pool_entry);
2560
2561 buf->pool_entry = pool_entry;
2562 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2563 buf->buffer->element[i].length = PAGE_SIZE;
2564 buf->buffer->element[i].addr = pool_entry->elements[i];
2565 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2566 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2567 else
2568 buf->buffer->element[i].flags = 0;
2569 }
2570 buf->state = QETH_QDIO_BUF_EMPTY;
2571}
2572
4d284cac 2573static void
1da177e4
LT		 2574qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2575 struct qeth_qdio_out_buffer *buf)
2576{
2577 int i;
2578 struct sk_buff *skb;
2579
2580 /* is PCI flag set on buffer? */
2581 if (buf->buffer->element[0].flags & 0x40)
2582 atomic_dec(&queue->set_pci_flags_count);
2583
2584 while ((skb = skb_dequeue(&buf->skb_list))){
2585 atomic_dec(&skb->users);
2586 dev_kfree_skb_any(skb);
2587 }
2588 qeth_eddp_buf_release_contexts(buf);
2589 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2590 buf->buffer->element[i].length = 0;
2591 buf->buffer->element[i].addr = NULL;
2592 buf->buffer->element[i].flags = 0;
2593 }
2594 buf->next_element_to_fill = 0;
2595 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2596}
2597
4d284cac 2598static void
1da177e4
LT		 2599qeth_queue_input_buffer(struct qeth_card *card, int index)
2600{
2601 struct qeth_qdio_q *queue = card->qdio.in_q;
2602 int count;
2603 int i;
2604 int rc;
2605
2606 QETH_DBF_TEXT(trace,6,"queinbuf");
2607 count = (index < queue->next_buf_to_init)?
2608 card->qdio.in_buf_pool.buf_count -
2609 (queue->next_buf_to_init - index) :
2610 card->qdio.in_buf_pool.buf_count -
2611 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2612 /* only requeue at a certain threshold to avoid SIGAs */
2613 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2614 for (i = queue->next_buf_to_init;
2615 i < queue->next_buf_to_init + count; ++i)
2616 qeth_init_input_buffer(card,
2617 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2618 /*
2619 * according to old code it should be avoided to requeue all
2620 * 128 buffers in order to benefit from PCI avoidance.
2621 * this function keeps at least one buffer (the buffer at
2622 * 'index') un-requeued -> this buffer is the first buffer that
2623 * will be requeued the next time
2624 */
09d2d38a
FP		 2625 if (card->options.performance_stats) {
2626 card->perf_stats.inbound_do_qdio_cnt++;
2627 card->perf_stats.inbound_do_qdio_start_time =
2628 qeth_get_micros();
2629 }
1da177e4
LT		 2630 rc = do_QDIO(CARD_DDEV(card),
2631 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2632 0, queue->next_buf_to_init, count, NULL);
09d2d38a
FP		 2633 if (card->options.performance_stats)
2634 card->perf_stats.inbound_do_qdio_time +=
2635 qeth_get_micros() -
2636 card->perf_stats.inbound_do_qdio_start_time;
1da177e4
LT		 2637 if (rc){
2638 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2639 "return %i (device %s).\n",
2640 rc, CARD_DDEV_ID(card));
2641 QETH_DBF_TEXT(trace,2,"qinberr");
2642 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2643 }
2644 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2645 QDIO_MAX_BUFFERS_PER_Q;
2646 }
2647}
2648
2649static inline void
2650qeth_put_buffer_pool_entry(struct qeth_card *card,
2651 struct qeth_buffer_pool_entry *entry)
2652{
2653 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2654 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2655}
2656
2657static void
2658qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2659 unsigned int qdio_err, unsigned int siga_err,
2660 unsigned int queue, int first_element, int count,
2661 unsigned long card_ptr)
2662{
2663 struct net_device *net_dev;
2664 struct qeth_card *card;
2665 struct qeth_qdio_buffer *buffer;
2666 int index;
2667 int i;
2668
2669 QETH_DBF_TEXT(trace, 6, "qdinput");
2670 card = (struct qeth_card *) card_ptr;
2671 net_dev = card->dev;
09d2d38a
FP		 2672 if (card->options.performance_stats) {
2673 card->perf_stats.inbound_cnt++;
2674 card->perf_stats.inbound_start_time = qeth_get_micros();
2675 }
1da177e4
LT		 2676 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2677 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2678 QETH_DBF_TEXT(trace, 1,"qdinchk");
2679 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2680 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2681 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2682 qeth_schedule_recovery(card);
2683 return;
2684 }
2685 }
2686 for (i = first_element; i < (first_element + count); ++i) {
2687 index = i % QDIO_MAX_BUFFERS_PER_Q;
2688 buffer = &card->qdio.in_q->bufs[index];
6c6b3e7c 2689 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
e82b0f2c 2690 qeth_check_qdio_errors(buffer->buffer,
6c6b3e7c 2691 qdio_err, siga_err,"qinerr")))
1da177e4
LT		 2692 qeth_process_inbound_buffer(card, buffer, index);
2693 /* clear buffer and give back to hardware */
2694 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2695 qeth_queue_input_buffer(card, index);
2696 }
09d2d38a
FP		 2697 if (card->options.performance_stats)
2698 card->perf_stats.inbound_time += qeth_get_micros() -
2699 card->perf_stats.inbound_start_time;
1da177e4
LT		 2700}
2701
4d284cac 2702static int
1da177e4
LT		 2703qeth_handle_send_error(struct qeth_card *card,
2704 struct qeth_qdio_out_buffer *buffer,
6c6b3e7c 2705 unsigned int qdio_err, unsigned int siga_err)
1da177e4
LT		 2706{
2707 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2708 int cc = siga_err & 3;
2709
2710 QETH_DBF_TEXT(trace, 6, "hdsnderr");
6c6b3e7c 2711 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
1da177e4
LT		 2712 switch (cc) {
2713 case 0:
2714 if (qdio_err){
2715 QETH_DBF_TEXT(trace, 1,"lnkfail");
2716 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2717 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2718 (u16)qdio_err, (u8)sbalf15);
2719 return QETH_SEND_ERROR_LINK_FAILURE;
2720 }
2721 return QETH_SEND_ERROR_NONE;
2722 case 2:
2723 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2724 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2725 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2726 return QETH_SEND_ERROR_KICK_IT;
2727 }
2728 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2729 return QETH_SEND_ERROR_RETRY;
2730 return QETH_SEND_ERROR_LINK_FAILURE;
2731 /* look at qdio_error and sbalf 15 */
2732 case 1:
2733 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2734 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2735 return QETH_SEND_ERROR_LINK_FAILURE;
2736 case 3:
1380fee2 2737 default:
1da177e4
LT		 2738 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2739 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2740 return QETH_SEND_ERROR_KICK_IT;
2741 }
1da177e4
LT		 2742}
2743
2744void
2745qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2746 int index, int count)
2747{
2748 struct qeth_qdio_out_buffer *buf;
2749 int rc;
2750 int i;
2751
2752 QETH_DBF_TEXT(trace, 6, "flushbuf");
2753
2754 for (i = index; i < index + count; ++i) {
2755 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2756 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2757 SBAL_FLAGS_LAST_ENTRY;
2758
2759 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2760 continue;
2761
2762 if (!queue->do_pack){
2763 if ((atomic_read(&queue->used_buffers) >=
2764 (QETH_HIGH_WATERMARK_PACK -
2765 QETH_WATERMARK_PACK_FUZZ)) &&
2766 !atomic_read(&queue->set_pci_flags_count)){
2767 /* it's likely that we'll go to packing
2768 * mode soon */
2769 atomic_inc(&queue->set_pci_flags_count);
2770 buf->buffer->element[0].flags |= 0x40;
2771 }
2772 } else {
2773 if (!atomic_read(&queue->set_pci_flags_count)){
2774 /*
2775 * there's no outstanding PCI any more, so we
2776 * have to request a PCI to be sure the the PCI
2777 * will wake at some time in the future then we
2778 * can flush packed buffers that might still be
2779 * hanging around, which can happen if no
2780 * further send was requested by the stack
2781 */
2782 atomic_inc(&queue->set_pci_flags_count);
2783 buf->buffer->element[0].flags |= 0x40;
2784 }
2785 }
2786 }
2787
2788 queue->card->dev->trans_start = jiffies;
09d2d38a
FP		 2789 if (queue->card->options.performance_stats) {
2790 queue->card->perf_stats.outbound_do_qdio_cnt++;
2791 queue->card->perf_stats.outbound_do_qdio_start_time =
2792 qeth_get_micros();
2793 }
1da177e4
LT		 2794 if (under_int)
2795 rc = do_QDIO(CARD_DDEV(queue->card),
2796 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2797 queue->queue_no, index, count, NULL);
2798 else
2799 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2800 queue->queue_no, index, count, NULL);
09d2d38a
FP		 2801 if (queue->card->options.performance_stats)
2802 queue->card->perf_stats.outbound_do_qdio_time +=
2803 qeth_get_micros() -
2804 queue->card->perf_stats.outbound_do_qdio_start_time;
1da177e4 2805 if (rc){
1da177e4
LT		 2806 QETH_DBF_TEXT(trace, 2, "flushbuf");
2807 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
f3d242e8 2808 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
1da177e4
LT		 2809 queue->card->stats.tx_errors += count;
2810 /* this must not happen under normal circumstances. if it
2811 * happens something is really wrong -> recover */
2812 qeth_schedule_recovery(queue->card);
2813 return;
2814 }
2815 atomic_add(count, &queue->used_buffers);
09d2d38a
FP		 2816 if (queue->card->options.performance_stats)
2817 queue->card->perf_stats.bufs_sent += count;
1da177e4
LT		 2818}
2819
2820/*
2821 * Switched to packing state if the number of used buffers on a queue
2822 * reaches a certain limit.
2823 */
4d284cac 2824static void
1da177e4
LT		 2825qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2826{
2827 if (!queue->do_pack) {
2828 if (atomic_read(&queue->used_buffers)
2829 >= QETH_HIGH_WATERMARK_PACK){
2830 /* switch non-PACKING -> PACKING */
2831 QETH_DBF_TEXT(trace, 6, "np->pack");
09d2d38a
FP		 2832 if (queue->card->options.performance_stats)
2833 queue->card->perf_stats.sc_dp_p++;
1da177e4
LT		 2834 queue->do_pack = 1;
2835 }
2836 }
2837}
2838
2839/*
2840 * Switches from packing to non-packing mode. If there is a packing
2841 * buffer on the queue this buffer will be prepared to be flushed.
2842 * In that case 1 is returned to inform the caller. If no buffer
2843 * has to be flushed, zero is returned.
2844 */
4d284cac 2845static int
1da177e4
LT		 2846qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2847{
2848 struct qeth_qdio_out_buffer *buffer;
2849 int flush_count = 0;
2850
2851 if (queue->do_pack) {
2852 if (atomic_read(&queue->used_buffers)
2853 <= QETH_LOW_WATERMARK_PACK) {
2854 /* switch PACKING -> non-PACKING */
2855 QETH_DBF_TEXT(trace, 6, "pack->np");
09d2d38a
FP		 2856 if (queue->card->options.performance_stats)
2857 queue->card->perf_stats.sc_p_dp++;
1da177e4
LT		 2858 queue->do_pack = 0;
2859 /* flush packing buffers */
2860 buffer = &queue->bufs[queue->next_buf_to_fill];
2861 if ((atomic_read(&buffer->state) ==
2862 QETH_QDIO_BUF_EMPTY) &&
2863 (buffer->next_element_to_fill > 0)) {
2864 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2865 flush_count++;
2866 queue->next_buf_to_fill =
2867 (queue->next_buf_to_fill + 1) %
2868 QDIO_MAX_BUFFERS_PER_Q;
09d2d38a 2869 }
1da177e4
LT		 2870 }
2871 }
2872 return flush_count;
2873}
2874
2875/*
2876 * Called to flush a packing buffer if no more pci flags are on the queue.
2877 * Checks if there is a packing buffer and prepares it to be flushed.
2878 * In that case returns 1, otherwise zero.
2879 */
4d284cac 2880static int
1da177e4
LT		 2881qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2882{
2883 struct qeth_qdio_out_buffer *buffer;
2884
2885 buffer = &queue->bufs[queue->next_buf_to_fill];
2886 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2887 (buffer->next_element_to_fill > 0)){
2888 /* it's a packing buffer */
2889 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2890 queue->next_buf_to_fill =
2891 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2892 return 1;
2893 }
2894 return 0;
2895}
2896
4d284cac 2897static void
1da177e4
LT		 2898qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2899{
2900 int index;
2901 int flush_cnt = 0;
2902 int q_was_packing = 0;
2903
2904 /*
2905 * check if weed have to switch to non-packing mode or if
2906 * we have to get a pci flag out on the queue
2907 */
2908 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2909 !atomic_read(&queue->set_pci_flags_count)){
9163bb2e 2910 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
1da177e4
LT		 2911 QETH_OUT_Q_UNLOCKED) {
2912 /*
2913 * If we get in here, there was no action in
2914 * do_send_packet. So, we check if there is a
2915 * packing buffer to be flushed here.
2916 */
2917 netif_stop_queue(queue->card->dev);
2918 index = queue->next_buf_to_fill;
2919 q_was_packing = queue->do_pack;
2920 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2921 if (!flush_cnt &&
2922 !atomic_read(&queue->set_pci_flags_count))
2923 flush_cnt +=
2924 qeth_flush_buffers_on_no_pci(queue);
09d2d38a
FP		 2925 if (queue->card->options.performance_stats &&
2926 q_was_packing)
1da177e4
LT		 2927 queue->card->perf_stats.bufs_sent_pack +=
2928 flush_cnt;
1da177e4
LT		 2929 if (flush_cnt)
2930 qeth_flush_buffers(queue, 1, index, flush_cnt);
2931 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2932 }
2933 }
2934}
2935
2936static void
2937qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2938 unsigned int qdio_error, unsigned int siga_error,
2939 unsigned int __queue, int first_element, int count,
2940 unsigned long card_ptr)
2941{
2942 struct qeth_card *card = (struct qeth_card *) card_ptr;
2943 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2944 struct qeth_qdio_out_buffer *buffer;
2945 int i;
2946
2947 QETH_DBF_TEXT(trace, 6, "qdouhdl");
2948 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2949 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
f3d242e8
FP		 2950 QETH_DBF_TEXT(trace, 2, "achkcond");
2951 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
1da177e4
LT		 2952 QETH_DBF_TEXT_(trace, 2, "%08x", status);
2953 netif_stop_queue(card->dev);
2954 qeth_schedule_recovery(card);
2955 return;
2956 }
2957 }
09d2d38a
FP		 2958 if (card->options.performance_stats) {
2959 card->perf_stats.outbound_handler_cnt++;
2960 card->perf_stats.outbound_handler_start_time =
2961 qeth_get_micros();
2962 }
1da177e4
LT		 2963 for(i = first_element; i < (first_element + count); ++i){
2964 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2965 /*we only handle the KICK_IT error by doing a recovery */
6c6b3e7c
FP		 2966 if (qeth_handle_send_error(card, buffer,
2967 qdio_error, siga_error)
1da177e4
LT		 2968 == QETH_SEND_ERROR_KICK_IT){
2969 netif_stop_queue(card->dev);
2970 qeth_schedule_recovery(card);
2971 return;
2972 }
2973 qeth_clear_output_buffer(queue, buffer);
2974 }
2975 atomic_sub(count, &queue->used_buffers);
2976 /* check if we need to do something on this outbound queue */
2977 if (card->info.type != QETH_CARD_TYPE_IQD)
2978 qeth_check_outbound_queue(queue);
2979
2980 netif_wake_queue(queue->card->dev);
09d2d38a
FP		 2981 if (card->options.performance_stats)
2982 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2983 card->perf_stats.outbound_handler_start_time;
1da177e4
LT		 2984}
2985
2986static void
2987qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
2988{
2989
2990 param_field[0] = _ascebc['P'];
2991 param_field[1] = _ascebc['C'];
2992 param_field[2] = _ascebc['I'];
2993 param_field[3] = _ascebc['T'];
2994 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2995 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2996 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2997}
2998
2999static void
3000qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3001{
3002 param_field[16] = _ascebc['B'];
3003 param_field[17] = _ascebc['L'];
3004 param_field[18] = _ascebc['K'];
3005 param_field[19] = _ascebc['T'];
3006 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3007 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3008 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3009}
3010
3011static void
3012qeth_initialize_working_pool_list(struct qeth_card *card)
3013{
3014 struct qeth_buffer_pool_entry *entry;
3015
3016 QETH_DBF_TEXT(trace,5,"inwrklst");
3017
3018 list_for_each_entry(entry,
3019 &card->qdio.init_pool.entry_list, init_list) {
3020 qeth_put_buffer_pool_entry(card,entry);
3021 }
3022}
3023
3024static void
3025qeth_clear_working_pool_list(struct qeth_card *card)
3026{
3027 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3028
3029 QETH_DBF_TEXT(trace,5,"clwrklst");
3030 list_for_each_entry_safe(pool_entry, tmp,
3031 &card->qdio.in_buf_pool.entry_list, list){
3032 list_del(&pool_entry->list);
3033 }
3034}
3035
3036static void
3037qeth_free_buffer_pool(struct qeth_card *card)
3038{
3039 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3040 int i=0;
3041 QETH_DBF_TEXT(trace,5,"freepool");
3042 list_for_each_entry_safe(pool_entry, tmp,
3043 &card->qdio.init_pool.entry_list, init_list){
3044 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3045 free_page((unsigned long)pool_entry->elements[i]);
3046 list_del(&pool_entry->init_list);
3047 kfree(pool_entry);
3048 }
3049}
3050
3051static int
3052qeth_alloc_buffer_pool(struct qeth_card *card)
3053{
3054 struct qeth_buffer_pool_entry *pool_entry;
3055 void *ptr;
3056 int i, j;
3057
3058 QETH_DBF_TEXT(trace,5,"alocpool");
3059 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3060 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3061 if (!pool_entry){
3062 qeth_free_buffer_pool(card);
3063 return -ENOMEM;
3064 }
3065 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
9123e0d7 3066 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3067 if (!ptr) {
3068 while (j > 0)
3069 free_page((unsigned long)
3070 pool_entry->elements[--j]);
3071 kfree(pool_entry);
3072 qeth_free_buffer_pool(card);
3073 return -ENOMEM;
3074 }
3075 pool_entry->elements[j] = ptr;
3076 }
3077 list_add(&pool_entry->init_list,
3078 &card->qdio.init_pool.entry_list);
3079 }
3080 return 0;
3081}
3082
3083int
3084qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3085{
3086 QETH_DBF_TEXT(trace, 2, "realcbp");
3087
3088 if ((card->state != CARD_STATE_DOWN) &&
3089 (card->state != CARD_STATE_RECOVER))
3090 return -EPERM;
3091
3092 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3093 qeth_clear_working_pool_list(card);
3094 qeth_free_buffer_pool(card);
3095 card->qdio.in_buf_pool.buf_count = bufcnt;
3096 card->qdio.init_pool.buf_count = bufcnt;
3097 return qeth_alloc_buffer_pool(card);
3098}
3099
3100static int
3101qeth_alloc_qdio_buffers(struct qeth_card *card)
3102{
3103 int i, j;
3104
3105 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3106
f956b690
FP		 3107 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3108 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
1da177e4
LT		 3109 return 0;
3110
e82b0f2c 3111 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
9123e0d7 3112 GFP_KERNEL|GFP_DMA);
1da177e4 3113 if (!card->qdio.in_q)
f956b690 3114 goto out_nomem;
1da177e4
LT		 3115 QETH_DBF_TEXT(setup, 2, "inq");
3116 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3117 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3118 /* give inbound qeth_qdio_buffers their qdio_buffers */
3119 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3120 card->qdio.in_q->bufs[i].buffer =
3121 &card->qdio.in_q->qdio_bufs[i];
3122 /* inbound buffer pool */
f956b690
FP		 3123 if (qeth_alloc_buffer_pool(card))
3124 goto out_freeinq;
1da177e4
LT		 3125 /* outbound */
3126 card->qdio.out_qs =
3127 kmalloc(card->qdio.no_out_queues *
3128 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
f956b690
FP		 3129 if (!card->qdio.out_qs)
3130 goto out_freepool;
3131 for (i = 0; i < card->qdio.no_out_queues; ++i) {
1da177e4 3132 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
9123e0d7 3133 GFP_KERNEL|GFP_DMA);
f956b690
FP		 3134 if (!card->qdio.out_qs[i])
3135 goto out_freeoutq;
1da177e4
LT		 3136 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3137 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3138 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3139 card->qdio.out_qs[i]->queue_no = i;
3140 /* give outbound qeth_qdio_buffers their qdio_buffers */
3141 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3142 card->qdio.out_qs[i]->bufs[j].buffer =
3143 &card->qdio.out_qs[i]->qdio_bufs[j];
3144 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3145 skb_list);
91ebe2a9
HC		 3146 lockdep_set_class(
3147 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3148 &qdio_out_skb_queue_key);
1da177e4
LT		 3149 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3150 }
3151 }
1da177e4 3152 return 0;
f956b690
FP		 3153
3154out_freeoutq:
3155 while (i > 0)
3156 kfree(card->qdio.out_qs[--i]);
3157 kfree(card->qdio.out_qs);
3158out_freepool:
3159 qeth_free_buffer_pool(card);
3160out_freeinq:
3161 kfree(card->qdio.in_q);
3162out_nomem:
3163 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3164 return -ENOMEM;
1da177e4
LT		 3165}
3166
3167static void
3168qeth_free_qdio_buffers(struct qeth_card *card)
3169{
3170 int i, j;
3171
3172 QETH_DBF_TEXT(trace, 2, "freeqdbf");
9163bb2e 3173 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
f956b690 3174 QETH_QDIO_UNINITIALIZED)
1da177e4
LT		 3175 return;
3176 kfree(card->qdio.in_q);
3177 /* inbound buffer pool */
3178 qeth_free_buffer_pool(card);
3179 /* free outbound qdio_qs */
3180 for (i = 0; i < card->qdio.no_out_queues; ++i){
3181 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3182 qeth_clear_output_buffer(card->qdio.out_qs[i],
3183 &card->qdio.out_qs[i]->bufs[j]);
3184 kfree(card->qdio.out_qs[i]);
3185 }
3186 kfree(card->qdio.out_qs);
1da177e4
LT		 3187}
3188
3189static void
3190qeth_clear_qdio_buffers(struct qeth_card *card)
3191{
3192 int i, j;
3193
3194 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3195 /* clear outbound buffers to free skbs */
3196 for (i = 0; i < card->qdio.no_out_queues; ++i)
3197 if (card->qdio.out_qs[i]){
3198 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3199 qeth_clear_output_buffer(card->qdio.out_qs[i],
3200 &card->qdio.out_qs[i]->bufs[j]);
3201 }
3202}
3203
3204static void
3205qeth_init_qdio_info(struct qeth_card *card)
3206{
3207 QETH_DBF_TEXT(setup, 4, "intqdinf");
f956b690 3208 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1da177e4
LT		 3209 /* inbound */
3210 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3211 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3212 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3213 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3214 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1da177e4
LT		 3215}
3216
3217static int
3218qeth_init_qdio_queues(struct qeth_card *card)
3219{
3220 int i, j;
3221 int rc;
3222
3223 QETH_DBF_TEXT(setup, 2, "initqdqs");
3224
3225 /* inbound queue */
3226 memset(card->qdio.in_q->qdio_bufs, 0,
3227 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3228 qeth_initialize_working_pool_list(card);
3229 /*give only as many buffers to hardware as we have buffer pool entries*/
3230 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3231 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3232 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3233 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3234 card->qdio.in_buf_pool.buf_count - 1, NULL);
3235 if (rc) {
3236 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3237 return rc;
3238 }
3239 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3240 if (rc) {
3241 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3242 return rc;
3243 }
3244 /* outbound queue */
3245 for (i = 0; i < card->qdio.no_out_queues; ++i){
3246 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3247 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3248 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3249 qeth_clear_output_buffer(card->qdio.out_qs[i],
3250 &card->qdio.out_qs[i]->bufs[j]);
3251 }
3252 card->qdio.out_qs[i]->card = card;
3253 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3254 card->qdio.out_qs[i]->do_pack = 0;
3255 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3256 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3257 atomic_set(&card->qdio.out_qs[i]->state,
3258 QETH_OUT_Q_UNLOCKED);
3259 }
3260 return 0;
3261}
3262
3263static int
3264qeth_qdio_establish(struct qeth_card *card)
3265{
3266 struct qdio_initialize init_data;
3267 char *qib_param_field;
3268 struct qdio_buffer **in_sbal_ptrs;
3269 struct qdio_buffer **out_sbal_ptrs;
3270 int i, j, k;
f956b690 3271 int rc = 0;
1da177e4
LT		 3272
3273 QETH_DBF_TEXT(setup, 2, "qdioest");
3274
88abaab4 3275 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
1da177e4
LT		 3276 GFP_KERNEL);
3277 if (!qib_param_field)
3278 return -ENOMEM;
3279
1da177e4
LT		 3280 qeth_create_qib_param_field(card, qib_param_field);
3281 qeth_create_qib_param_field_blkt(card, qib_param_field);
3282
3283 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3284 GFP_KERNEL);
3285 if (!in_sbal_ptrs) {
3286 kfree(qib_param_field);
3287 return -ENOMEM;
3288 }
3289 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3290 in_sbal_ptrs[i] = (struct qdio_buffer *)
3291 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3292
3293 out_sbal_ptrs =
3294 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3295 sizeof(void *), GFP_KERNEL);
3296 if (!out_sbal_ptrs) {
3297 kfree(in_sbal_ptrs);
3298 kfree(qib_param_field);
3299 return -ENOMEM;
3300 }
3301 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3302 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3303 out_sbal_ptrs[k] = (struct qdio_buffer *)
3304 virt_to_phys(card->qdio.out_qs[i]->
3305 bufs[j].buffer);
3306 }
3307
3308 memset(&init_data, 0, sizeof(struct qdio_initialize));
3309 init_data.cdev = CARD_DDEV(card);
3310 init_data.q_format = qeth_get_qdio_q_format(card);
3311 init_data.qib_param_field_format = 0;
3312 init_data.qib_param_field = qib_param_field;
3313 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3314 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3315 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3316 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3317 init_data.no_input_qs = 1;
3318 init_data.no_output_qs = card->qdio.no_out_queues;
3319 init_data.input_handler = (qdio_handler_t *)
3320 qeth_qdio_input_handler;
3321 init_data.output_handler = (qdio_handler_t *)
3322 qeth_qdio_output_handler;
3323 init_data.int_parm = (unsigned long) card;
3324 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3325 QDIO_OUTBOUND_0COPY_SBALS |
3326 QDIO_USE_OUTBOUND_PCIS;
3327 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3328 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3329
f956b690
FP		 3330 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3331 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3332 if ((rc = qdio_initialize(&init_data)))
3333 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1da177e4
LT		 3334
3335 kfree(out_sbal_ptrs);
3336 kfree(in_sbal_ptrs);
3337 kfree(qib_param_field);
3338 return rc;
3339}
3340
3341static int
3342qeth_qdio_activate(struct qeth_card *card)
3343{
3344 QETH_DBF_TEXT(setup,3,"qdioact");
3345 return qdio_activate(CARD_DDEV(card), 0);
3346}
3347
3348static int
3349qeth_clear_channel(struct qeth_channel *channel)
3350{
3351 unsigned long flags;
3352 struct qeth_card *card;
3353 int rc;
3354
3355 QETH_DBF_TEXT(trace,3,"clearch");
3356 card = CARD_FROM_CDEV(channel->ccwdev);
3357 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3358 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3359 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3360
3361 if (rc)
3362 return rc;
3363 rc = wait_event_interruptible_timeout(card->wait_q,
3364 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3365 if (rc == -ERESTARTSYS)
3366 return rc;
3367 if (channel->state != CH_STATE_STOPPED)
3368 return -ETIME;
3369 channel->state = CH_STATE_DOWN;
3370 return 0;
3371}
3372
3373static int
3374qeth_halt_channel(struct qeth_channel *channel)
3375{
3376 unsigned long flags;
3377 struct qeth_card *card;
3378 int rc;
3379
3380 QETH_DBF_TEXT(trace,3,"haltch");
3381 card = CARD_FROM_CDEV(channel->ccwdev);
3382 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3383 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3384 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3385
3386 if (rc)
3387 return rc;
3388 rc = wait_event_interruptible_timeout(card->wait_q,
3389 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3390 if (rc == -ERESTARTSYS)
3391 return rc;
3392 if (channel->state != CH_STATE_HALTED)
3393 return -ETIME;
3394 return 0;
3395}
3396
3397static int
3398qeth_halt_channels(struct qeth_card *card)
3399{
f3d242e8 3400 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3401
3402 QETH_DBF_TEXT(trace,3,"haltchs");
f3d242e8
FP		 3403 rc1 = qeth_halt_channel(&card->read);
3404 rc2 = qeth_halt_channel(&card->write);
3405 rc3 = qeth_halt_channel(&card->data);
3406 if (rc1)
3407 return rc1;
e82b0f2c 3408 if (rc2)
f3d242e8
FP		 3409 return rc2;
3410 return rc3;
1da177e4
LT		 3411}
3412static int
3413qeth_clear_channels(struct qeth_card *card)
3414{
f3d242e8 3415 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3416
3417 QETH_DBF_TEXT(trace,3,"clearchs");
f3d242e8
FP		 3418 rc1 = qeth_clear_channel(&card->read);
3419 rc2 = qeth_clear_channel(&card->write);
3420 rc3 = qeth_clear_channel(&card->data);
3421 if (rc1)
3422 return rc1;
e82b0f2c 3423 if (rc2)
f3d242e8
FP		 3424 return rc2;
3425 return rc3;
1da177e4
LT		 3426}
3427
3428static int
3429qeth_clear_halt_card(struct qeth_card *card, int halt)
3430{
3431 int rc = 0;
3432
3433 QETH_DBF_TEXT(trace,3,"clhacrd");
3434 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3435
3436 if (halt)
3437 rc = qeth_halt_channels(card);
3438 if (rc)
3439 return rc;
3440 return qeth_clear_channels(card);
3441}
3442
3443static int
3444qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3445{
3446 int rc = 0;
3447
3448 QETH_DBF_TEXT(trace,3,"qdioclr");
f956b690
FP		 3449 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3450 QETH_QDIO_CLEANING)) {
3451 case QETH_QDIO_ESTABLISHED:
1da177e4 3452 if ((rc = qdio_cleanup(CARD_DDEV(card),
f956b690
FP		 3453 (card->info.type == QETH_CARD_TYPE_IQD) ?
3454 QDIO_FLAG_CLEANUP_USING_HALT :
3455 QDIO_FLAG_CLEANUP_USING_CLEAR)))
1da177e4 3456 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
f956b690
FP		 3457 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3458 break;
3459 case QETH_QDIO_CLEANING:
3460 return rc;
3461 default:
3462 break;
1da177e4
LT		 3463 }
3464 if ((rc = qeth_clear_halt_card(card, use_halt)))
3465 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3466 card->state = CARD_STATE_DOWN;
3467 return rc;
3468}
3469
3470static int
3471qeth_dm_act(struct qeth_card *card)
3472{
3473 int rc;
3474 struct qeth_cmd_buffer *iob;
3475
3476 QETH_DBF_TEXT(setup,2,"dmact");
3477
3478 iob = qeth_wait_for_buffer(&card->write);
3479 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3480
3481 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3482 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3483 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3484 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3485 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3486 return rc;
3487}
3488
3489static int
3490qeth_mpc_initialize(struct qeth_card *card)
3491{
3492 int rc;
3493
3494 QETH_DBF_TEXT(setup,2,"mpcinit");
3495
3496 if ((rc = qeth_issue_next_read(card))){
3497 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3498 return rc;
3499 }
3500 if ((rc = qeth_cm_enable(card))){
3501 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
f3d242e8 3502 goto out_qdio;
1da177e4
LT		 3503 }
3504 if ((rc = qeth_cm_setup(card))){
3505 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
f3d242e8 3506 goto out_qdio;
1da177e4
LT		 3507 }
3508 if ((rc = qeth_ulp_enable(card))){
3509 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
f3d242e8 3510 goto out_qdio;
1da177e4
LT		 3511 }
3512 if ((rc = qeth_ulp_setup(card))){
3513 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3514 goto out_qdio;
1da177e4
LT		 3515 }
3516 if ((rc = qeth_alloc_qdio_buffers(card))){
3517 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3518 goto out_qdio;
1da177e4
LT		 3519 }
3520 if ((rc = qeth_qdio_establish(card))){
3521 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3522 qeth_free_qdio_buffers(card);
3523 goto out_qdio;
3524 }
3525 if ((rc = qeth_qdio_activate(card))){
3526 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3527 goto out_qdio;
3528 }
3529 if ((rc = qeth_dm_act(card))){
3530 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3531 goto out_qdio;
3532 }
3533
3534 return 0;
3535out_qdio:
500f83ab 3536 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 3537 return rc;
3538}
3539
3540static struct net_device *
3541qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3542{
3543 struct net_device *dev = NULL;
3544
3545 switch (type) {
3546 case QETH_CARD_TYPE_OSAE:
3547 switch (linktype) {
3548 case QETH_LINK_TYPE_LANE_TR:
3549 case QETH_LINK_TYPE_HSTR:
3550#ifdef CONFIG_TR
3551 dev = alloc_trdev(0);
3552#endif /* CONFIG_TR */
3553 break;
3554 default:
3555 dev = alloc_etherdev(0);
3556 }
3557 break;
3558 case QETH_CARD_TYPE_IQD:
3559 dev = alloc_netdev(0, "hsi%d", ether_setup);
3560 break;
500f83ab
UB		 3561 case QETH_CARD_TYPE_OSN:
3562 dev = alloc_netdev(0, "osn%d", ether_setup);
3563 break;
1da177e4
LT		 3564 default:
3565 dev = alloc_etherdev(0);
3566 }
3567 return dev;
3568}
3569
3570/*hard_header fake function; used in case fake_ll is set */
3571static int
3572qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3573 unsigned short type, void *daddr, void *saddr,
3574 unsigned len)
3575{
e23dd9cd
FP		 3576 if(dev->type == ARPHRD_IEEE802_TR){
3577 struct trh_hdr *hdr;
3578 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3579 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3580 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3581 return QETH_FAKE_LL_LEN_TR;
3582
3583 } else {
3584 struct ethhdr *hdr;
3585 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3586 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3587 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3588 if (type != ETH_P_802_3)
3589 hdr->h_proto = htons(type);
3590 else
3591 hdr->h_proto = htons(len);
3592 return QETH_FAKE_LL_LEN_ETH;
1da177e4 3593
e23dd9cd 3594 }
1da177e4
LT		 3595}
3596
4d284cac 3597static int
1da177e4
LT		 3598qeth_send_packet(struct qeth_card *, struct sk_buff *);
3599
3600static int
3601qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3602{
3603 int rc;
3604 struct qeth_card *card;
3605
3606 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3607 card = (struct qeth_card *)dev->priv;
3608 if (skb==NULL) {
3609 card->stats.tx_dropped++;
3610 card->stats.tx_errors++;
3611 /* return OK; otherwise ksoftirqd goes to 100% */
3612 return NETDEV_TX_OK;
3613 }
3614 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3615 card->stats.tx_dropped++;
3616 card->stats.tx_errors++;
3617 card->stats.tx_carrier_errors++;
3618 dev_kfree_skb_any(skb);
3619 /* return OK; otherwise ksoftirqd goes to 100% */
3620 return NETDEV_TX_OK;
3621 }
09d2d38a
FP		 3622 if (card->options.performance_stats) {
3623 card->perf_stats.outbound_cnt++;
3624 card->perf_stats.outbound_start_time = qeth_get_micros();
3625 }
1da177e4
LT		 3626 netif_stop_queue(dev);
3627 if ((rc = qeth_send_packet(card, skb))) {
3628 if (rc == -EBUSY) {
3629 return NETDEV_TX_BUSY;
3630 } else {
3631 card->stats.tx_errors++;
3632 card->stats.tx_dropped++;
3633 dev_kfree_skb_any(skb);
3634 /*set to OK; otherwise ksoftirqd goes to 100% */
3635 rc = NETDEV_TX_OK;
3636 }
3637 }
3638 netif_wake_queue(dev);
09d2d38a
FP		 3639 if (card->options.performance_stats)
3640 card->perf_stats.outbound_time += qeth_get_micros() -
3641 card->perf_stats.outbound_start_time;
1da177e4
LT		 3642 return rc;
3643}
3644
3645static int
3646qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3647{
3648 int rc = 0;
3649#ifdef CONFIG_QETH_VLAN
3650 struct vlan_group *vg;
3651 int i;
3652
3653 if (!(vg = card->vlangrp))
3654 return rc;
3655
3656 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
5c15bdec 3657 if (vlan_group_get_device(vg, i) == dev){
1da177e4
LT		 3658 rc = QETH_VLAN_CARD;
3659 break;
3660 }
3661 }
6c6b3e7c
FP		 3662 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3663 return 0;
3664
1da177e4
LT		 3665#endif
3666 return rc;
3667}
3668
3669static int
3670qeth_verify_dev(struct net_device *dev)
3671{
3672 struct qeth_card *card;
3673 unsigned long flags;
3674 int rc = 0;
3675
3676 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3677 list_for_each_entry(card, &qeth_card_list.list, list){
3678 if (card->dev == dev){
3679 rc = QETH_REAL_CARD;
3680 break;
3681 }
3682 rc = qeth_verify_vlan_dev(dev, card);
3683 if (rc)
3684 break;
3685 }
3686 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3687
3688 return rc;
3689}
3690
3691static struct qeth_card *
3692qeth_get_card_from_dev(struct net_device *dev)
3693{
3694 struct qeth_card *card = NULL;
3695 int rc;
3696
3697 rc = qeth_verify_dev(dev);
3698 if (rc == QETH_REAL_CARD)
3699 card = (struct qeth_card *)dev->priv;
3700 else if (rc == QETH_VLAN_CARD)
3701 card = (struct qeth_card *)
3702 VLAN_DEV_INFO(dev)->real_dev->priv;
3703
3704 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3705 return card ;
3706}
3707
3708static void
3709qeth_tx_timeout(struct net_device *dev)
3710{
3711 struct qeth_card *card;
3712
3713 card = (struct qeth_card *) dev->priv;
3714 card->stats.tx_errors++;
3715 qeth_schedule_recovery(card);
3716}
3717
3718static int
3719qeth_open(struct net_device *dev)
3720{
3721 struct qeth_card *card;
3722
3723 QETH_DBF_TEXT(trace, 4, "qethopen");
3724
3725 card = (struct qeth_card *) dev->priv;
3726
3727 if (card->state != CARD_STATE_SOFTSETUP)
3728 return -ENODEV;
3729
500f83ab
UB		 3730 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3731 (card->options.layer2) &&
e08d88cc 3732 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
1da177e4
LT		 3733 QETH_DBF_TEXT(trace,4,"nomacadr");
3734 return -EPERM;
3735 }
1da177e4
LT		 3736 card->data.state = CH_STATE_UP;
3737 card->state = CARD_STATE_UP;
ba1aa084
UB		 3738 card->dev->flags |= IFF_UP;
3739 netif_start_queue(dev);
e82b0f2c 3740
4965e97f
FP		 3741 if (!card->lan_online && netif_carrier_ok(dev))
3742 netif_carrier_off(dev);
1da177e4
LT		 3743 return 0;
3744}
3745
3746static int
3747qeth_stop(struct net_device *dev)
3748{
3749 struct qeth_card *card;
3750
3751 QETH_DBF_TEXT(trace, 4, "qethstop");
3752
3753 card = (struct qeth_card *) dev->priv;
3754
b85e1fa1 3755 netif_tx_disable(dev);
1da177e4
LT		 3756 card->dev->flags &= ~IFF_UP;
3757 if (card->state == CARD_STATE_UP)
3758 card->state = CARD_STATE_SOFTSETUP;
3759 return 0;
3760}
3761
4d284cac 3762static int
1da177e4
LT		 3763qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3764{
3765 int cast_type = RTN_UNSPEC;
3766
500f83ab
UB		 3767 if (card->info.type == QETH_CARD_TYPE_OSN)
3768 return cast_type;
3769
1da177e4
LT		 3770 if (skb->dst && skb->dst->neighbour){
3771 cast_type = skb->dst->neighbour->type;
3772 if ((cast_type == RTN_BROADCAST) ||
3773 (cast_type == RTN_MULTICAST) ||
3774 (cast_type == RTN_ANYCAST))
3775 return cast_type;
3776 else
3777 return RTN_UNSPEC;
3778 }
3779 /* try something else */
3780 if (skb->protocol == ETH_P_IPV6)
d56f90a7
ACM		 3781 return (skb_network_header(skb)[24] == 0xff) ?
3782 RTN_MULTICAST : 0;
1da177e4 3783 else if (skb->protocol == ETH_P_IP)
d56f90a7
ACM		 3784 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
3785 RTN_MULTICAST : 0;
1da177e4
LT		 3786 /* ... */
3787 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3788 return RTN_BROADCAST;
3789 else {
3790 u16 hdr_mac;
3791
3792 hdr_mac = *((u16 *)skb->data);
3793 /* tr multicast? */
3794 switch (card->info.link_type) {
3795 case QETH_LINK_TYPE_HSTR:
3796 case QETH_LINK_TYPE_LANE_TR:
3797 if ((hdr_mac == QETH_TR_MAC_NC) ||
3798 (hdr_mac == QETH_TR_MAC_C))
3799 return RTN_MULTICAST;
1380fee2 3800 break;
1da177e4
LT		 3801 /* eth or so multicast? */
3802 default:
3803 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3804 (hdr_mac == QETH_ETH_MAC_V6))
3805 return RTN_MULTICAST;
3806 }
3807 }
3808 return cast_type;
3809}
3810
4d284cac 3811static int
1da177e4
LT		 3812qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3813 int ipv, int cast_type)
3814{
3815 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3816 return card->qdio.default_out_queue;
3817 switch (card->qdio.no_out_queues) {
3818 case 4:
3819 if (cast_type && card->info.is_multicast_different)
3820 return card->info.is_multicast_different &
3821 (card->qdio.no_out_queues - 1);
3822 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3823 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3824 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3825 return 3;
3826 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3827 return 2;
3828 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3829 return 1;
3830 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3831 return 0;
3832 }
3833 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3834 return 3 - (skb->nh.iph->tos >> 6);
3835 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3836 /* TODO: IPv6!!! */
3837 }
3838 return card->qdio.default_out_queue;
3839 case 1: /* fallthrough for single-out-queue 1920-device */
3840 default:
3841 return card->qdio.default_out_queue;
3842 }
3843}
3844
3845static inline int
3846qeth_get_ip_version(struct sk_buff *skb)
3847{
3848 switch (skb->protocol) {
3849 case ETH_P_IPV6:
3850 return 6;
3851 case ETH_P_IP:
3852 return 4;
3853 default:
3854 return 0;
3855 }
3856}
3857
4d284cac 3858static struct qeth_hdr *
f7b65d70 3859__qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
1da177e4 3860{
1da177e4
LT		 3861#ifdef CONFIG_QETH_VLAN
3862 u16 *tag;
f7b65d70 3863 if (card->vlangrp && vlan_tx_tag_present(skb) &&
1da177e4
LT		 3864 ((ipv == 6) || card->options.layer2) ) {
3865 /*
3866 * Move the mac addresses (6 bytes src, 6 bytes dest)
3867 * to the beginning of the new header. We are using three
3868 * memcpys instead of one memmove to save cycles.
3869 */
f7b65d70
FP		 3870 skb_push(skb, VLAN_HLEN);
3871 memcpy(skb->data, skb->data + 4, 4);
3872 memcpy(skb->data + 4, skb->data + 8, 4);
3873 memcpy(skb->data + 8, skb->data + 12, 4);
3874 tag = (u16 *)(skb->data + 12);
1da177e4
LT		 3875 /*
3876 * first two bytes = ETH_P_8021Q (0x8100)
3877 * second two bytes = VLANID
3878 */
3879 *tag = __constant_htons(ETH_P_8021Q);
f7b65d70 3880 *(tag + 1) = htons(vlan_tx_tag_get(skb));
1da177e4
LT		 3881 }
3882#endif
f7b65d70
FP		 3883 return ((struct qeth_hdr *)
3884 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3885}
3886
4d284cac 3887static void
f7b65d70
FP		 3888__qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3889{
3890 if (orig_skb != new_skb)
3891 dev_kfree_skb_any(new_skb);
3892}
3893
4d284cac 3894static struct sk_buff *
f7b65d70
FP		 3895qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3896 struct qeth_hdr **hdr, int ipv)
3897{
2d36c16e 3898 struct sk_buff *new_skb, *new_skb2;
f7b65d70
FP		 3899
3900 QETH_DBF_TEXT(trace, 6, "prepskb");
2d36c16e
FB		 3901 new_skb = skb;
3902 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
3903 if (!new_skb)
f7b65d70 3904 return NULL;
2d36c16e
FB		 3905 new_skb2 = qeth_realloc_headroom(card, new_skb,
3906 sizeof(struct qeth_hdr));
3907 if (!new_skb2) {
3908 __qeth_free_new_skb(skb, new_skb);
3909 return NULL;
3910 }
3911 if (new_skb != skb)
3912 __qeth_free_new_skb(new_skb2, new_skb);
3913 new_skb = new_skb2;
f7b65d70
FP		 3914 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3915 if (*hdr == NULL) {
3916 __qeth_free_new_skb(skb, new_skb);
3917 return NULL;
3918 }
3919 return new_skb;
1da177e4
LT		 3920}
3921
3922static inline u8
3923qeth_get_qeth_hdr_flags4(int cast_type)
3924{
3925 if (cast_type == RTN_MULTICAST)
3926 return QETH_CAST_MULTICAST;
3927 if (cast_type == RTN_BROADCAST)
3928 return QETH_CAST_BROADCAST;
3929 return QETH_CAST_UNICAST;
3930}
3931
3932static inline u8
3933qeth_get_qeth_hdr_flags6(int cast_type)
3934{
3935 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3936 if (cast_type == RTN_MULTICAST)
3937 return ct | QETH_CAST_MULTICAST;
3938 if (cast_type == RTN_ANYCAST)
3939 return ct | QETH_CAST_ANYCAST;
3940 if (cast_type == RTN_BROADCAST)
3941 return ct | QETH_CAST_BROADCAST;
3942 return ct | QETH_CAST_UNICAST;
3943}
3944
4d284cac 3945static void
1da177e4
LT		 3946qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3947 struct sk_buff *skb)
3948{
3949 __u16 hdr_mac;
3950
3951 if (!memcmp(skb->data+QETH_HEADER_SIZE,
3952 skb->dev->broadcast,6)) { /* broadcast? */
3953 *(__u32 *)hdr->hdr.l2.flags |=
3954 QETH_LAYER2_FLAG_BROADCAST << 8;
3955 return;
3956 }
3957 hdr_mac=*((__u16*)skb->data);
3958 /* tr multicast? */
3959 switch (card->info.link_type) {
3960 case QETH_LINK_TYPE_HSTR:
3961 case QETH_LINK_TYPE_LANE_TR:
3962 if ((hdr_mac == QETH_TR_MAC_NC) ||
3963 (hdr_mac == QETH_TR_MAC_C) )
3964 *(__u32 *)hdr->hdr.l2.flags |=
3965 QETH_LAYER2_FLAG_MULTICAST << 8;
3966 else
3967 *(__u32 *)hdr->hdr.l2.flags |=
3968 QETH_LAYER2_FLAG_UNICAST << 8;
3969 break;
3970 /* eth or so multicast? */
3971 default:
3972 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3973 (hdr_mac==QETH_ETH_MAC_V6) )
3974 *(__u32 *)hdr->hdr.l2.flags |=
3975 QETH_LAYER2_FLAG_MULTICAST << 8;
3976 else
3977 *(__u32 *)hdr->hdr.l2.flags |=
3978 QETH_LAYER2_FLAG_UNICAST << 8;
3979 }
3980}
3981
4d284cac 3982static void
1da177e4
LT		 3983qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3984 struct sk_buff *skb, int cast_type)
3985{
3986 memset(hdr, 0, sizeof(struct qeth_hdr));
3987 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
3988
3989 /* set byte 0 to "0x02" and byte 3 to casting flags */
3990 if (cast_type==RTN_MULTICAST)
3991 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
3992 else if (cast_type==RTN_BROADCAST)
3993 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
3994 else
3995 qeth_layer2_get_packet_type(card, hdr, skb);
3996
3997 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
3998#ifdef CONFIG_QETH_VLAN
3999 /* VSWITCH relies on the VLAN
4000 * information to be present in
4001 * the QDIO header */
4002 if ((card->vlangrp != NULL) &&
4003 vlan_tx_tag_present(skb)) {
4004 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4005 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4006 }
4007#endif
4008}
4009
4010void
4011qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4012 struct sk_buff *skb, int ipv, int cast_type)
4013{
4014 QETH_DBF_TEXT(trace, 6, "fillhdr");
4015
4016 memset(hdr, 0, sizeof(struct qeth_hdr));
4017 if (card->options.layer2) {
4018 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4019 return;
4020 }
4021 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4022 hdr->hdr.l3.ext_flags = 0;
4023#ifdef CONFIG_QETH_VLAN
4024 /*
4025 * before we're going to overwrite this location with next hop ip.
4026 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4027 */
4028 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4029 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4030 QETH_HDR_EXT_VLAN_FRAME :
4031 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4032 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4033 }
4034#endif /* CONFIG_QETH_VLAN */
4035 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4036 if (ipv == 4) { /* IPv4 */
4037 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4038 memset(hdr->hdr.l3.dest_addr, 0, 12);
4039 if ((skb->dst) && (skb->dst->neighbour)) {
4040 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4041 *((u32 *) skb->dst->neighbour->primary_key);
4042 } else {
4043 /* fill in destination address used in ip header */
4044 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4045 }
4046 } else if (ipv == 6) { /* IPv6 or passthru */
4047 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4048 if ((skb->dst) && (skb->dst->neighbour)) {
4049 memcpy(hdr->hdr.l3.dest_addr,
4050 skb->dst->neighbour->primary_key, 16);
4051 } else {
4052 /* fill in destination address used in ip header */
4053 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4054 }
4055 } else { /* passthrough */
e23dd9cd 4056 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
e82b0f2c 4057 !memcmp(skb->data + sizeof(struct qeth_hdr) +
9a455819
FP		 4058 sizeof(__u16), skb->dev->broadcast, 6)) {
4059 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4060 QETH_HDR_PASSTHRU;
e23dd9cd 4061 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
1da177e4 4062 skb->dev->broadcast, 6)) { /* broadcast? */
e23dd9cd
FP		 4063 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4064 QETH_HDR_PASSTHRU;
1da177e4
LT		 4065 } else {
4066 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4067 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4068 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4069 }
4070 }
4071}
4072
4d284cac 4073static void
1da177e4 4074__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
05e08a2a 4075 int is_tso, int *next_element_to_fill)
1da177e4
LT		 4076{
4077 int length = skb->len;
4078 int length_here;
4079 int element;
4080 char *data;
05e08a2a 4081 int first_lap ;
1da177e4
LT		 4082
4083 element = *next_element_to_fill;
4084 data = skb->data;
05e08a2a
FP		 4085 first_lap = (is_tso == 0 ? 1 : 0);
4086
1da177e4
LT		 4087 while (length > 0) {
4088 /* length_here is the remaining amount of data in this page */
4089 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4090 if (length < length_here)
4091 length_here = length;
05e08a2a 4092
1da177e4
LT		 4093 buffer->element[element].addr = data;
4094 buffer->element[element].length = length_here;
4095 length -= length_here;
05e08a2a 4096 if (!length) {
1da177e4
LT		 4097 if (first_lap)
4098 buffer->element[element].flags = 0;
4099 else
4100 buffer->element[element].flags =
4101 SBAL_FLAGS_LAST_FRAG;
4102 } else {
4103 if (first_lap)
4104 buffer->element[element].flags =
4105 SBAL_FLAGS_FIRST_FRAG;
4106 else
4107 buffer->element[element].flags =
4108 SBAL_FLAGS_MIDDLE_FRAG;
4109 }
4110 data += length_here;
4111 element++;
4112 first_lap = 0;
4113 }
4114 *next_element_to_fill = element;
4115}
4116
4d284cac 4117static int
1da177e4
LT		 4118qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4119 struct qeth_qdio_out_buffer *buf,
4120 struct sk_buff *skb)
4121{
4122 struct qdio_buffer *buffer;
05e08a2a
FP		 4123 struct qeth_hdr_tso *hdr;
4124 int flush_cnt = 0, hdr_len, large_send = 0;
1da177e4
LT		 4125
4126 QETH_DBF_TEXT(trace, 6, "qdfillbf");
05e08a2a 4127
1da177e4
LT		 4128 buffer = buf->buffer;
4129 atomic_inc(&skb->users);
4130 skb_queue_tail(&buf->skb_list, skb);
05e08a2a
FP		 4131
4132 hdr = (struct qeth_hdr_tso *) skb->data;
4133 /*check first on TSO ....*/
4134 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4135 int element = buf->next_element_to_fill;
4136
4137 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4138 /*fill first buffer entry only with header information */
4139 buffer->element[element].addr = skb->data;
4140 buffer->element[element].length = hdr_len;
4141 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4142 buf->next_element_to_fill++;
4143 skb->data += hdr_len;
4144 skb->len -= hdr_len;
4145 large_send = 1;
4146 }
1da177e4 4147 if (skb_shinfo(skb)->nr_frags == 0)
05e08a2a 4148 __qeth_fill_buffer(skb, buffer, large_send,
1da177e4
LT		 4149 (int *)&buf->next_element_to_fill);
4150 else
05e08a2a 4151 __qeth_fill_buffer_frag(skb, buffer, large_send,
1da177e4
LT		 4152 (int *)&buf->next_element_to_fill);
4153
4154 if (!queue->do_pack) {
4155 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4156 /* set state to PRIMED -> will be flushed */
4157 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4158 flush_cnt = 1;
4159 } else {
4160 QETH_DBF_TEXT(trace, 6, "fillbfpa");
09d2d38a
FP		 4161 if (queue->card->options.performance_stats)
4162 queue->card->perf_stats.skbs_sent_pack++;
1da177e4
LT		 4163 if (buf->next_element_to_fill >=
4164 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4165 /*
4166 * packed buffer if full -> set state PRIMED
4167 * -> will be flushed
4168 */
4169 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4170 flush_cnt = 1;
4171 }
4172 }
4173 return flush_cnt;
4174}
4175
4d284cac 4176static int
1da177e4
LT		 4177qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4178 struct sk_buff *skb, struct qeth_hdr *hdr,
4179 int elements_needed,
4180 struct qeth_eddp_context *ctx)
4181{
4182 struct qeth_qdio_out_buffer *buffer;
4183 int buffers_needed = 0;
4184 int flush_cnt = 0;
4185 int index;
4186
4187 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4188
4189 /* spin until we get the queue ... */
973bd993
MS		 4190 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4191 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4192 /* ... now we've got the queue */
4193 index = queue->next_buf_to_fill;
4194 buffer = &queue->bufs[queue->next_buf_to_fill];
4195 /*
4196 * check if buffer is empty to make sure that we do not 'overtake'
4197 * ourselves and try to fill a buffer that is already primed
4198 */
f7b65d70
FP		 4199 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4200 goto out;
1da177e4
LT		 4201 if (ctx == NULL)
4202 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4203 QDIO_MAX_BUFFERS_PER_Q;
4204 else {
4205 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
f7b65d70
FP		 4206 if (buffers_needed < 0)
4207 goto out;
1da177e4
LT		 4208 queue->next_buf_to_fill =
4209 (queue->next_buf_to_fill + buffers_needed) %
4210 QDIO_MAX_BUFFERS_PER_Q;
4211 }
4212 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4213 if (ctx == NULL) {
4214 qeth_fill_buffer(queue, buffer, skb);
4215 qeth_flush_buffers(queue, 0, index, 1);
4216 } else {
4217 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4218 WARN_ON(buffers_needed != flush_cnt);
4219 qeth_flush_buffers(queue, 0, index, flush_cnt);
4220 }
4221 return 0;
f7b65d70
FP		 4222out:
4223 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4224 return -EBUSY;
1da177e4
LT		 4225}
4226
4d284cac 4227static int
1da177e4
LT		 4228qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4229 struct sk_buff *skb, struct qeth_hdr *hdr,
4230 int elements_needed, struct qeth_eddp_context *ctx)
4231{
4232 struct qeth_qdio_out_buffer *buffer;
4233 int start_index;
4234 int flush_count = 0;
4235 int do_pack = 0;
4236 int tmp;
4237 int rc = 0;
4238
4239 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4240
4241 /* spin until we get the queue ... */
973bd993
MS		 4242 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4243 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4244 start_index = queue->next_buf_to_fill;
4245 buffer = &queue->bufs[queue->next_buf_to_fill];
4246 /*
4247 * check if buffer is empty to make sure that we do not 'overtake'
4248 * ourselves and try to fill a buffer that is already primed
4249 */
f7b65d70 4250 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
1da177e4
LT		 4251 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4252 return -EBUSY;
4253 }
4254 /* check if we need to switch packing state of this queue */
4255 qeth_switch_to_packing_if_needed(queue);
4256 if (queue->do_pack){
4257 do_pack = 1;
4258 if (ctx == NULL) {
4259 /* does packet fit in current buffer? */
4260 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4261 buffer->next_element_to_fill) < elements_needed){
4262 /* ... no -> set state PRIMED */
4263 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4264 flush_count++;
4265 queue->next_buf_to_fill =
4266 (queue->next_buf_to_fill + 1) %
4267 QDIO_MAX_BUFFERS_PER_Q;
4268 buffer = &queue->bufs[queue->next_buf_to_fill];
4269 /* we did a step forward, so check buffer state
4270 * again */
4271 if (atomic_read(&buffer->state) !=
4272 QETH_QDIO_BUF_EMPTY){
1da177e4
LT		 4273 qeth_flush_buffers(queue, 0, start_index, flush_count);
4274 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4275 return -EBUSY;
4276 }
4277 }
4278 } else {
4279 /* check if we have enough elements (including following
4280 * free buffers) to handle eddp context */
4281 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4282 printk("eddp tx_dropped 1\n");
1da177e4
LT		 4283 rc = -EBUSY;
4284 goto out;
4285 }
4286 }
4287 }
4288 if (ctx == NULL)
4289 tmp = qeth_fill_buffer(queue, buffer, skb);
4290 else {
4291 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4292 if (tmp < 0) {
4293 printk("eddp tx_dropped 2\n");
1da177e4
LT		 4294 rc = - EBUSY;
4295 goto out;
4296 }
4297 }
4298 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4299 QDIO_MAX_BUFFERS_PER_Q;
4300 flush_count += tmp;
4301out:
4302 if (flush_count)
4303 qeth_flush_buffers(queue, 0, start_index, flush_count);
d805d7c6 4304 else if (!atomic_read(&queue->set_pci_flags_count))
9163bb2e 4305 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
1da177e4
LT		 4306 /*
4307 * queue->state will go from LOCKED -> UNLOCKED or from
4308 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4309 * (switch packing state or flush buffer to get another pci flag out).
4310 * In that case we will enter this loop
4311 */
4312 while (atomic_dec_return(&queue->state)){
4313 flush_count = 0;
4314 start_index = queue->next_buf_to_fill;
4315 /* check if we can go back to non-packing state */
4316 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4317 /*
4318 * check if we need to flush a packing buffer to get a pci
4319 * flag out on the queue
4320 */
4321 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4322 flush_count += qeth_flush_buffers_on_no_pci(queue);
4323 if (flush_count)
4324 qeth_flush_buffers(queue, 0, start_index, flush_count);
4325 }
4326 /* at this point the queue is UNLOCKED again */
09d2d38a 4327 if (queue->card->options.performance_stats && do_pack)
1da177e4 4328 queue->card->perf_stats.bufs_sent_pack += flush_count;
1da177e4
LT		 4329
4330 return rc;
4331}
4332
4d284cac 4333static int
e82b0f2c 4334qeth_get_elements_no(struct qeth_card *card, void *hdr,
9cb90de8 4335 struct sk_buff *skb, int elems)
05e08a2a
FP		 4336{
4337 int elements_needed = 0;
4338
f7b65d70 4339 if (skb_shinfo(skb)->nr_frags > 0)
05e08a2a 4340 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
f7b65d70 4341 if (elements_needed == 0)
05e08a2a
FP		 4342 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4343 + skb->len) >> PAGE_SHIFT);
9cb90de8 4344 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
f7b65d70
FP		 4345 PRINT_ERR("Invalid size of IP packet "
4346 "(Number=%d / Length=%d). Discarded.\n",
9cb90de8 4347 (elements_needed+elems), skb->len);
05e08a2a
FP		 4348 return 0;
4349 }
4350 return elements_needed;
4351}
4352
f7b65d70 4353
4d284cac 4354static int
1da177e4
LT		 4355qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4356{
4357 int ipv = 0;
4358 int cast_type;
4359 struct qeth_qdio_out_q *queue;
f3d242e8 4360 struct qeth_hdr *hdr = NULL;
1da177e4
LT		 4361 int elements_needed = 0;
4362 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4363 struct qeth_eddp_context *ctx = NULL;
95f6b5a1 4364 int tx_bytes = skb->len;
ba1aa084 4365 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
7967168c 4366 unsigned short tso_size = skb_shinfo(skb)->gso_size;
f7b65d70 4367 struct sk_buff *new_skb, *new_skb2;
1da177e4
LT		 4368 int rc;
4369
4370 QETH_DBF_TEXT(trace, 6, "sendpkt");
4371
f7b65d70
FP		 4372 new_skb = skb;
4373 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4374 (skb->protocol == htons(ETH_P_IPV6)))
4375 return -EPERM;
4376 cast_type = qeth_get_cast_type(card, skb);
4377 if ((cast_type == RTN_BROADCAST) &&
4378 (card->info.broadcast_capable == 0))
4379 return -EPERM;
4380 queue = card->qdio.out_qs
4381 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
1da177e4
LT		 4382 if (!card->options.layer2) {
4383 ipv = qeth_get_ip_version(skb);
4384 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
f7b65d70
FP		 4385 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4386 if (!new_skb)
4387 return -ENOMEM;
e23dd9cd 4388 if(card->dev->type == ARPHRD_IEEE802_TR){
f7b65d70 4389 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
e23dd9cd 4390 } else {
f7b65d70 4391 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
e23dd9cd 4392 }
1da177e4
LT		 4393 }
4394 }
89114afd 4395 if (skb_is_gso(skb))
1da177e4 4396 large_send = card->options.large_send;
f7b65d70
FP		 4397 /* check on OSN device*/
4398 if (card->info.type == QETH_CARD_TYPE_OSN)
4399 hdr = (struct qeth_hdr *)new_skb->data;
4400 /*are we able to do TSO ? */
1da177e4
LT		 4401 if ((large_send == QETH_LARGE_SEND_TSO) &&
4402 (cast_type == RTN_UNSPEC)) {
f7b65d70 4403 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
05e08a2a 4404 if (rc) {
f7b65d70
FP		 4405 __qeth_free_new_skb(skb, new_skb);
4406 return rc;
e82b0f2c 4407 }
05e08a2a 4408 elements_needed++;
f7b65d70
FP		 4409 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4410 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4411 if (!new_skb2) {
4412 __qeth_free_new_skb(skb, new_skb);
4413 return -EINVAL;
05e08a2a 4414 }
f7b65d70
FP		 4415 if (new_skb != skb)
4416 __qeth_free_new_skb(new_skb2, new_skb);
4417 new_skb = new_skb2;
4418 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
1da177e4 4419 }
1da177e4 4420 if (large_send == QETH_LARGE_SEND_EDDP) {
f7b65d70 4421 ctx = qeth_eddp_create_context(card, new_skb, hdr);
1da177e4 4422 if (ctx == NULL) {
f7b65d70 4423 __qeth_free_new_skb(skb, new_skb);
1da177e4
LT		 4424 PRINT_WARN("could not create eddp context\n");
4425 return -EINVAL;
4426 }
4427 } else {
f7b65d70 4428 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
9cb90de8 4429 elements_needed);
f7b65d70
FP		 4430 if (!elems) {
4431 __qeth_free_new_skb(skb, new_skb);
1da177e4 4432 return -EINVAL;
f7b65d70 4433 }
9cb90de8 4434 elements_needed += elems;
1da177e4
LT		 4435 }
4436
4437 if (card->info.type != QETH_CARD_TYPE_IQD)
f7b65d70 4438 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
1da177e4
LT		 4439 elements_needed, ctx);
4440 else
f7b65d70 4441 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
1da177e4 4442 elements_needed, ctx);
f7b65d70 4443 if (!rc) {
1da177e4 4444 card->stats.tx_packets++;
95f6b5a1 4445 card->stats.tx_bytes += tx_bytes;
f7b65d70
FP		 4446 if (new_skb != skb)
4447 dev_kfree_skb_any(skb);
09d2d38a
FP		 4448 if (card->options.performance_stats) {
4449 if (tso_size &&
4450 !(large_send == QETH_LARGE_SEND_NO)) {
4451 card->perf_stats.large_send_bytes += tx_bytes;
4452 card->perf_stats.large_send_cnt++;
4453 }
4454 if (nr_frags > 0) {
4455 card->perf_stats.sg_skbs_sent++;
4456 /* nr_frags + skb->data */
4457 card->perf_stats.sg_frags_sent +=
4458 nr_frags + 1;
4459 }
1da177e4 4460 }
f7b65d70
FP		 4461 } else {
4462 card->stats.tx_dropped++;
4463 __qeth_free_new_skb(skb, new_skb);
1da177e4
LT		 4464 }
4465 if (ctx != NULL) {
4466 /* drop creator's reference */
4467 qeth_eddp_put_context(ctx);
4468 /* free skb; it's not referenced by a buffer */
f7b65d70
FP		 4469 if (!rc)
4470 dev_kfree_skb_any(new_skb);
1da177e4
LT		 4471 }
4472 return rc;
4473}
4474
4475static int
4476qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4477{
4478 struct qeth_card *card = (struct qeth_card *) dev->priv;
4479 int rc = 0;
4480
4481 switch(regnum){
4482 case MII_BMCR: /* Basic mode control register */
4483 rc = BMCR_FULLDPLX;
4484 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
500f83ab 4485 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
1da177e4
LT		 4486 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4487 rc |= BMCR_SPEED100;
4488 break;
4489 case MII_BMSR: /* Basic mode status register */
4490 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4491 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4492 BMSR_100BASE4;
4493 break;
4494 case MII_PHYSID1: /* PHYS ID 1 */
4495 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4496 dev->dev_addr[2];
4497 rc = (rc >> 5) & 0xFFFF;
4498 break;
4499 case MII_PHYSID2: /* PHYS ID 2 */
4500 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4501 break;
4502 case MII_ADVERTISE: /* Advertisement control reg */
4503 rc = ADVERTISE_ALL;
4504 break;
4505 case MII_LPA: /* Link partner ability reg */
4506 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4507 LPA_100BASE4 | LPA_LPACK;
4508 break;
4509 case MII_EXPANSION: /* Expansion register */
4510 break;
4511 case MII_DCOUNTER: /* disconnect counter */
4512 break;
4513 case MII_FCSCOUNTER: /* false carrier counter */
4514 break;
4515 case MII_NWAYTEST: /* N-way auto-neg test register */
4516 break;
4517 case MII_RERRCOUNTER: /* rx error counter */
4518 rc = card->stats.rx_errors;
4519 break;
4520 case MII_SREVISION: /* silicon revision */
4521 break;
4522 case MII_RESV1: /* reserved 1 */
4523 break;
4524 case MII_LBRERROR: /* loopback, rx, bypass error */
4525 break;
4526 case MII_PHYADDR: /* physical address */
4527 break;
4528 case MII_RESV2: /* reserved 2 */
4529 break;
4530 case MII_TPISTATUS: /* TPI status for 10mbps */
4531 break;
4532 case MII_NCONFIG: /* network interface config */
4533 break;
4534 default:
1da177e4
LT		 4535 break;
4536 }
4537 return rc;
4538}
4539
1da177e4 4540
4d284cac 4541static const char *
1da177e4
LT		 4542qeth_arp_get_error_cause(int *rc)
4543{
4544 switch (*rc) {
4545 case QETH_IPA_ARP_RC_FAILED:
4546 *rc = -EIO;
4547 return "operation failed";
4548 case QETH_IPA_ARP_RC_NOTSUPP:
4549 *rc = -EOPNOTSUPP;
4550 return "operation not supported";
4551 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4552 *rc = -EINVAL;
4553 return "argument out of range";
4554 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4555 *rc = -EOPNOTSUPP;
4556 return "query operation not supported";
4557 case QETH_IPA_ARP_RC_Q_NO_DATA:
4558 *rc = -ENOENT;
4559 return "no query data available";
4560 default:
4561 return "unknown error";
4562 }
4563}
4564
4565static int
4566qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4567 __u16, long);
4568
4569static int
4570qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4571{
4572 int tmp;
4573 int rc;
4574
4575 QETH_DBF_TEXT(trace,3,"arpstnoe");
4576
f3d242e8
FP		 4577 /*
4578 * currently GuestLAN only supports the ARP assist function
4579 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4580 * thus we say EOPNOTSUPP for this ARP function
4581 */
1da177e4
LT		 4582 if (card->info.guestlan)
4583 return -EOPNOTSUPP;
4584 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4585 PRINT_WARN("ARP processing not supported "
4586 "on %s!\n", QETH_CARD_IFNAME(card));
4587 return -EOPNOTSUPP;
4588 }
4589 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4590 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4591 no_entries);
4592 if (rc) {
4593 tmp = rc;
4594 PRINT_WARN("Could not set number of ARP entries on %s: "
4595 "%s (0x%x/%d)\n",
4596 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4597 tmp, tmp);
4598 }
4599 return rc;
4600}
4601
4d284cac 4602static void
1da177e4
LT		 4603qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4604 struct qeth_arp_query_data *qdata,
4605 int entry_size, int uentry_size)
4606{
4607 char *entry_ptr;
4608 char *uentry_ptr;
4609 int i;
4610
4611 entry_ptr = (char *)&qdata->data;
4612 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4613 for (i = 0; i < qdata->no_entries; ++i){
4614 /* strip off 32 bytes "media specific information" */
4615 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4616 entry_ptr += entry_size;
4617 uentry_ptr += uentry_size;
4618 }
4619}
4620
4621static int
4622qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4623 unsigned long data)
4624{
4625 struct qeth_ipa_cmd *cmd;
4626 struct qeth_arp_query_data *qdata;
4627 struct qeth_arp_query_info *qinfo;
4628 int entry_size;
4629 int uentry_size;
4630 int i;
4631
4632 QETH_DBF_TEXT(trace,4,"arpquecb");
4633
4634 qinfo = (struct qeth_arp_query_info *) reply->param;
4635 cmd = (struct qeth_ipa_cmd *) data;
4636 if (cmd->hdr.return_code) {
4637 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4638 return 0;
4639 }
4640 if (cmd->data.setassparms.hdr.return_code) {
4641 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4642 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4643 return 0;
4644 }
4645 qdata = &cmd->data.setassparms.data.query_arp;
4646 switch(qdata->reply_bits){
4647 case 5:
4648 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4649 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4650 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4651 break;
4652 case 7:
4653 /* fall through to default */
4654 default:
4655 /* tr is the same as eth -> entry7 */
4656 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4657 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4658 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4659 break;
4660 }
4661 /* check if there is enough room in userspace */
4662 if ((qinfo->udata_len - qinfo->udata_offset) <
4663 qdata->no_entries * uentry_size){
4664 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4665 cmd->hdr.return_code = -ENOMEM;
4666 PRINT_WARN("query ARP user space buffer is too small for "
4667 "the returned number of ARP entries. "
4668 "Aborting query!\n");
4669 goto out_error;
4670 }
4671 QETH_DBF_TEXT_(trace, 4, "anore%i",
4672 cmd->data.setassparms.hdr.number_of_replies);
4673 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4674 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4675
4676 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4677 /* strip off "media specific information" */
4678 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4679 uentry_size);
4680 } else
4681 /*copy entries to user buffer*/
4682 memcpy(qinfo->udata + qinfo->udata_offset,
4683 (char *)&qdata->data, qdata->no_entries*uentry_size);
4684
4685 qinfo->no_entries += qdata->no_entries;
4686 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4687 /* check if all replies received ... */
4688 if (cmd->data.setassparms.hdr.seq_no <
4689 cmd->data.setassparms.hdr.number_of_replies)
4690 return 1;
4691 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4692 /* keep STRIP_ENTRIES flag so the user program can distinguish
4693 * stripped entries from normal ones */
4694 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4695 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4696 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4697 return 0;
4698out_error:
4699 i = 0;
4700 memcpy(qinfo->udata, &i, 4);
4701 return 0;
4702}
4703
4704static int
4705qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4706 int len, int (*reply_cb)(struct qeth_card *,
4707 struct qeth_reply *,
4708 unsigned long),
4709 void *reply_param)
4710{
4711 QETH_DBF_TEXT(trace,4,"sendarp");
4712
4713 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4714 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4715 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4716 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4717 reply_cb, reply_param);
4718}
4719
4720static int
4721qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4722 int len, int (*reply_cb)(struct qeth_card *,
4723 struct qeth_reply *,
4724 unsigned long),
4725 void *reply_param)
4726{
4727 u16 s1, s2;
4728
4729 QETH_DBF_TEXT(trace,4,"sendsnmp");
4730
4731 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4732 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4733 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4734 /* adjust PDU length fields in IPA_PDU_HEADER */
4735 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4736 s2 = (u32) len;
4737 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4738 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4739 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4740 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4741 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4742 reply_cb, reply_param);
4743}
4744
4745static struct qeth_cmd_buffer *
4746qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4747 __u16, __u16, enum qeth_prot_versions);
4748static int
d2c993d8 4749qeth_arp_query(struct qeth_card *card, char __user *udata)
1da177e4
LT		 4750{
4751 struct qeth_cmd_buffer *iob;
4752 struct qeth_arp_query_info qinfo = {0, };
4753 int tmp;
4754 int rc;
4755
4756 QETH_DBF_TEXT(trace,3,"arpquery");
4757
1da177e4
LT		 4758 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4759 IPA_ARP_PROCESSING)) {
4760 PRINT_WARN("ARP processing not supported "
4761 "on %s!\n", QETH_CARD_IFNAME(card));
4762 return -EOPNOTSUPP;
4763 }
4764 /* get size of userspace buffer and mask_bits -> 6 bytes */
4765 if (copy_from_user(&qinfo, udata, 6))
4766 return -EFAULT;
88abaab4 4767 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
1da177e4 4768 return -ENOMEM;
1da177e4
LT		 4769 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4770 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4771 IPA_CMD_ASS_ARP_QUERY_INFO,
4772 sizeof(int),QETH_PROT_IPV4);
4773
4774 rc = qeth_send_ipa_arp_cmd(card, iob,
4775 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4776 qeth_arp_query_cb, (void *)&qinfo);
4777 if (rc) {
4778 tmp = rc;
4779 PRINT_WARN("Error while querying ARP cache on %s: %s "
4780 "(0x%x/%d)\n",
4781 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4782 tmp, tmp);
3a6b95c8
HC		 4783 if (copy_to_user(udata, qinfo.udata, 4))
4784 rc = -EFAULT;
1da177e4 4785 } else {
3a6b95c8
HC		 4786 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4787 rc = -EFAULT;
1da177e4
LT		 4788 }
4789 kfree(qinfo.udata);
4790 return rc;
4791}
4792
4793/**
4794 * SNMP command callback
4795 */
4796static int
4797qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4798 unsigned long sdata)
4799{
4800 struct qeth_ipa_cmd *cmd;
4801 struct qeth_arp_query_info *qinfo;
4802 struct qeth_snmp_cmd *snmp;
4803 unsigned char *data;
4804 __u16 data_len;
4805
4806 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4807
4808 cmd = (struct qeth_ipa_cmd *) sdata;
4809 data = (unsigned char *)((char *)cmd - reply->offset);
4810 qinfo = (struct qeth_arp_query_info *) reply->param;
4811 snmp = &cmd->data.setadapterparms.data.snmp;
4812
4813 if (cmd->hdr.return_code) {
4814 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4815 return 0;
4816 }
4817 if (cmd->data.setadapterparms.hdr.return_code) {
4818 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4819 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4820 return 0;
4821 }
4822 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4823 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4824 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4825 else
4826 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4827
4828 /* check if there is enough room in userspace */
4829 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4830 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4831 cmd->hdr.return_code = -ENOMEM;
4832 return 0;
4833 }
4834 QETH_DBF_TEXT_(trace, 4, "snore%i",
4835 cmd->data.setadapterparms.hdr.used_total);
4836 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4837 /*copy entries to user buffer*/
4838 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4839 memcpy(qinfo->udata + qinfo->udata_offset,
4840 (char *)snmp,
4841 data_len + offsetof(struct qeth_snmp_cmd,data));
4842 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4843 } else {
4844 memcpy(qinfo->udata + qinfo->udata_offset,
4845 (char *)&snmp->request, data_len);
4846 }
4847 qinfo->udata_offset += data_len;
4848 /* check if all replies received ... */
4849 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4850 cmd->data.setadapterparms.hdr.used_total);
4851 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4852 cmd->data.setadapterparms.hdr.seq_no);
4853 if (cmd->data.setadapterparms.hdr.seq_no <
4854 cmd->data.setadapterparms.hdr.used_total)
4855 return 1;
4856 return 0;
4857}
4858
4859static struct qeth_cmd_buffer *
4860qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4861 enum qeth_prot_versions );
4862
4863static struct qeth_cmd_buffer *
4864qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4865{
4866 struct qeth_cmd_buffer *iob;
4867 struct qeth_ipa_cmd *cmd;
4868
4869 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4870 QETH_PROT_IPV4);
4871 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4872 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4873 cmd->data.setadapterparms.hdr.command_code = command;
4874 cmd->data.setadapterparms.hdr.used_total = 1;
4875 cmd->data.setadapterparms.hdr.seq_no = 1;
4876
4877 return iob;
4878}
4879
4880/**
4881 * function to send SNMP commands to OSA-E card
4882 */
4883static int
d2c993d8 4884qeth_snmp_command(struct qeth_card *card, char __user *udata)
1da177e4
LT		 4885{
4886 struct qeth_cmd_buffer *iob;
4887 struct qeth_ipa_cmd *cmd;
4888 struct qeth_snmp_ureq *ureq;
4889 int req_len;
4890 struct qeth_arp_query_info qinfo = {0, };
4891 int rc = 0;
4892
4893 QETH_DBF_TEXT(trace,3,"snmpcmd");
4894
4895 if (card->info.guestlan)
4896 return -EOPNOTSUPP;
4897
4898 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4899 (!card->options.layer2) ) {
4900 PRINT_WARN("SNMP Query MIBS not supported "
4901 "on %s!\n", QETH_CARD_IFNAME(card));
4902 return -EOPNOTSUPP;
4903 }
4904 /* skip 4 bytes (data_len struct member) to get req_len */
4905 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4906 return -EFAULT;
4907 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4908 if (!ureq) {
4909 QETH_DBF_TEXT(trace, 2, "snmpnome");
4910 return -ENOMEM;
4911 }
4912 if (copy_from_user(ureq, udata,
4913 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4914 kfree(ureq);
4915 return -EFAULT;
4916 }
4917 qinfo.udata_len = ureq->hdr.data_len;
88abaab4 4918 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
1da177e4
LT		 4919 kfree(ureq);
4920 return -ENOMEM;
4921 }
1da177e4
LT		 4922 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4923
4924 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4925 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4926 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4927 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4928 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4929 qeth_snmp_command_cb, (void *)&qinfo);
4930 if (rc)
4931 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4932 QETH_CARD_IFNAME(card), rc);
3a6b95c8
HC		 4933 else {
4934 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4935 rc = -EFAULT;
4936 }
1da177e4
LT		 4937
4938 kfree(ureq);
4939 kfree(qinfo.udata);
4940 return rc;
4941}
4942
4943static int
4944qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4945 unsigned long);
4946
4947static int
6c951b90
FP		 4948qeth_default_setadapterparms_cb(struct qeth_card *card,
4949 struct qeth_reply *reply,
4950 unsigned long data);
4951static int
1da177e4
LT		 4952qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4953 __u16, long,
4954 int (*reply_cb)
4955 (struct qeth_card *, struct qeth_reply *, unsigned long),
4956 void *reply_param);
4957
4958static int
4959qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4960{
4961 struct qeth_cmd_buffer *iob;
4962 char buf[16];
4963 int tmp;
4964 int rc;
4965
4966 QETH_DBF_TEXT(trace,3,"arpadent");
4967
4968 /*
f3d242e8
FP		 4969 * currently GuestLAN only supports the ARP assist function
4970 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
4971 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 4972 */
4973 if (card->info.guestlan)
4974 return -EOPNOTSUPP;
4975 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4976 PRINT_WARN("ARP processing not supported "
4977 "on %s!\n", QETH_CARD_IFNAME(card));
4978 return -EOPNOTSUPP;
4979 }
4980
4981 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4982 IPA_CMD_ASS_ARP_ADD_ENTRY,
4983 sizeof(struct qeth_arp_cache_entry),
4984 QETH_PROT_IPV4);
4985 rc = qeth_send_setassparms(card, iob,
4986 sizeof(struct qeth_arp_cache_entry),
4987 (unsigned long) entry,
4988 qeth_default_setassparms_cb, NULL);
4989 if (rc) {
4990 tmp = rc;
4991 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4992 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4993 "%s (0x%x/%d)\n",
4994 buf, QETH_CARD_IFNAME(card),
4995 qeth_arp_get_error_cause(&rc), tmp, tmp);
4996 }
4997 return rc;
4998}
4999
5000static int
5001qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5002{
5003 struct qeth_cmd_buffer *iob;
5004 char buf[16] = {0, };
5005 int tmp;
5006 int rc;
5007
5008 QETH_DBF_TEXT(trace,3,"arprment");
5009
5010 /*
f3d242e8
FP		 5011 * currently GuestLAN only supports the ARP assist function
5012 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5013 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5014 */
5015 if (card->info.guestlan)
5016 return -EOPNOTSUPP;
5017 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5018 PRINT_WARN("ARP processing not supported "
5019 "on %s!\n", QETH_CARD_IFNAME(card));
5020 return -EOPNOTSUPP;
5021 }
5022 memcpy(buf, entry, 12);
5023 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5024 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5025 12,
5026 QETH_PROT_IPV4);
5027 rc = qeth_send_setassparms(card, iob,
5028 12, (unsigned long)buf,
5029 qeth_default_setassparms_cb, NULL);
5030 if (rc) {
5031 tmp = rc;
5032 memset(buf, 0, 16);
5033 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5034 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5035 "%s (0x%x/%d)\n",
5036 buf, QETH_CARD_IFNAME(card),
5037 qeth_arp_get_error_cause(&rc), tmp, tmp);
5038 }
5039 return rc;
5040}
5041
5042static int
5043qeth_arp_flush_cache(struct qeth_card *card)
5044{
5045 int rc;
5046 int tmp;
5047
5048 QETH_DBF_TEXT(trace,3,"arpflush");
5049
5050 /*
f3d242e8
FP		 5051 * currently GuestLAN only supports the ARP assist function
5052 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5053 * thus we say EOPNOTSUPP for this ARP function
5054 */
1da177e4
LT		 5055 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5056 return -EOPNOTSUPP;
5057 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5058 PRINT_WARN("ARP processing not supported "
5059 "on %s!\n", QETH_CARD_IFNAME(card));
5060 return -EOPNOTSUPP;
5061 }
5062 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5063 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5064 if (rc){
5065 tmp = rc;
5066 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5067 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5068 tmp, tmp);
5069 }
5070 return rc;
5071}
5072
5073static int
5074qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5075{
5076 struct qeth_card *card = (struct qeth_card *)dev->priv;
5077 struct qeth_arp_cache_entry arp_entry;
5078 struct mii_ioctl_data *mii_data;
5079 int rc = 0;
5080
5081 if (!card)
5082 return -ENODEV;
5083
5084 if ((card->state != CARD_STATE_UP) &&
5085 (card->state != CARD_STATE_SOFTSETUP))
5086 return -ENODEV;
5087
500f83ab
UB		 5088 if (card->info.type == QETH_CARD_TYPE_OSN)
5089 return -EPERM;
5090
1da177e4
LT		 5091 switch (cmd){
5092 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5093 if ( !capable(CAP_NET_ADMIN) ||
5094 (card->options.layer2) ) {
5095 rc = -EPERM;
5096 break;
5097 }
5098 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5099 break;
5100 case SIOC_QETH_ARP_QUERY_INFO:
5101 if ( !capable(CAP_NET_ADMIN) ||
5102 (card->options.layer2) ) {
5103 rc = -EPERM;
5104 break;
5105 }
5106 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5107 break;
5108 case SIOC_QETH_ARP_ADD_ENTRY:
5109 if ( !capable(CAP_NET_ADMIN) ||
5110 (card->options.layer2) ) {
5111 rc = -EPERM;
5112 break;
5113 }
5114 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5115 sizeof(struct qeth_arp_cache_entry)))
5116 rc = -EFAULT;
5117 else
5118 rc = qeth_arp_add_entry(card, &arp_entry);
5119 break;
5120 case SIOC_QETH_ARP_REMOVE_ENTRY:
5121 if ( !capable(CAP_NET_ADMIN) ||
5122 (card->options.layer2) ) {
5123 rc = -EPERM;
5124 break;
5125 }
5126 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5127 sizeof(struct qeth_arp_cache_entry)))
5128 rc = -EFAULT;
5129 else
5130 rc = qeth_arp_remove_entry(card, &arp_entry);
5131 break;
5132 case SIOC_QETH_ARP_FLUSH_CACHE:
5133 if ( !capable(CAP_NET_ADMIN) ||
5134 (card->options.layer2) ) {
5135 rc = -EPERM;
5136 break;
5137 }
5138 rc = qeth_arp_flush_cache(card);
5139 break;
5140 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5141 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5142 break;
5143 case SIOC_QETH_GET_CARD_TYPE:
5144 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5145 !card->info.guestlan)
5146 return 1;
5147 return 0;
5148 break;
5149 case SIOCGMIIPHY:
5150 mii_data = if_mii(rq);
5151 mii_data->phy_id = 0;
5152 break;
5153 case SIOCGMIIREG:
5154 mii_data = if_mii(rq);
5155 if (mii_data->phy_id != 0)
5156 rc = -EINVAL;
5157 else
5158 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5159 mii_data->reg_num);
5160 break;
1da177e4
LT		 5161 default:
5162 rc = -EOPNOTSUPP;
5163 }
5164 if (rc)
5165 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5166 return rc;
5167}
5168
5169static struct net_device_stats *
5170qeth_get_stats(struct net_device *dev)
5171{
5172 struct qeth_card *card;
5173
5174 card = (struct qeth_card *) (dev->priv);
5175
5176 QETH_DBF_TEXT(trace,5,"getstat");
5177
5178 return &card->stats;
5179}
5180
5181static int
5182qeth_change_mtu(struct net_device *dev, int new_mtu)
5183{
5184 struct qeth_card *card;
5185 char dbf_text[15];
5186
5187 card = (struct qeth_card *) (dev->priv);
5188
5189 QETH_DBF_TEXT(trace,4,"chgmtu");
5190 sprintf(dbf_text, "%8x", new_mtu);
5191 QETH_DBF_TEXT(trace,4,dbf_text);
5192
5193 if (new_mtu < 64)
5194 return -EINVAL;
5195 if (new_mtu > 65535)
5196 return -EINVAL;
5197 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5198 (!qeth_mtu_is_valid(card, new_mtu)))
5199 return -EINVAL;
5200 dev->mtu = new_mtu;
5201 return 0;
5202}
5203
5204#ifdef CONFIG_QETH_VLAN
5205static void
5206qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5207{
5208 struct qeth_card *card;
5209 unsigned long flags;
5210
5211 QETH_DBF_TEXT(trace,4,"vlanreg");
5212
5213 card = (struct qeth_card *) dev->priv;
5214 spin_lock_irqsave(&card->vlanlock, flags);
5215 card->vlangrp = grp;
5216 spin_unlock_irqrestore(&card->vlanlock, flags);
5217}
5218
4d284cac 5219static void
1da177e4
LT		 5220qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5221 unsigned short vid)
5222{
5223 int i;
5224 struct sk_buff *skb;
5225 struct sk_buff_head tmp_list;
5226
5227 skb_queue_head_init(&tmp_list);
91ebe2a9 5228 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
1da177e4
LT		 5229 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5230 while ((skb = skb_dequeue(&buf->skb_list))){
5231 if (vlan_tx_tag_present(skb) &&
5232 (vlan_tx_tag_get(skb) == vid)) {
5233 atomic_dec(&skb->users);
5234 dev_kfree_skb(skb);
5235 } else
5236 skb_queue_tail(&tmp_list, skb);
5237 }
5238 }
5239 while ((skb = skb_dequeue(&tmp_list)))
5240 skb_queue_tail(&buf->skb_list, skb);
5241}
5242
5243static void
5244qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5245{
5246 int i, j;
5247
5248 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5249 for (i = 0; i < card->qdio.no_out_queues; ++i){
5250 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5251 qeth_free_vlan_buffer(card, &card->qdio.
5252 out_qs[i]->bufs[j], vid);
5253 }
5254}
5255
5256static void
5257qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5258{
5259 struct in_device *in_dev;
5260 struct in_ifaddr *ifa;
5261 struct qeth_ipaddr *addr;
5262
5263 QETH_DBF_TEXT(trace, 4, "frvaddr4");
6c88ad2d 5264
1da177e4 5265 rcu_read_lock();
5c15bdec 5266 in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
1da177e4
LT		 5267 if (!in_dev)
5268 goto out;
5269 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5270 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5271 if (addr){
5272 addr->u.a4.addr = ifa->ifa_address;
5273 addr->u.a4.mask = ifa->ifa_mask;
5274 addr->type = QETH_IP_TYPE_NORMAL;
5275 if (!qeth_delete_ip(card, addr))
5276 kfree(addr);
5277 }
5278 }
5279out:
5280 rcu_read_unlock();
5281}
5282
5283static void
5284qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5285{
5286#ifdef CONFIG_QETH_IPV6
5287 struct inet6_dev *in6_dev;
5288 struct inet6_ifaddr *ifa;
5289 struct qeth_ipaddr *addr;
5290
5291 QETH_DBF_TEXT(trace, 4, "frvaddr6");
6c88ad2d 5292
5c15bdec 5293 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1da177e4
LT		 5294 if (!in6_dev)
5295 return;
5296 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5297 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5298 if (addr){
5299 memcpy(&addr->u.a6.addr, &ifa->addr,
5300 sizeof(struct in6_addr));
5301 addr->u.a6.pfxlen = ifa->prefix_len;
5302 addr->type = QETH_IP_TYPE_NORMAL;
5303 if (!qeth_delete_ip(card, addr))
5304 kfree(addr);
5305 }
5306 }
5307 in6_dev_put(in6_dev);
5308#endif /* CONFIG_QETH_IPV6 */
5309}
5310
6c88ad2d
FP		 5311static void
5312qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5313{
5314 if (card->options.layer2 || !card->vlangrp)
5315 return;
5316 qeth_free_vlan_addresses4(card, vid);
5317 qeth_free_vlan_addresses6(card, vid);
5318}
5319
508cc2b0
FP		 5320static int
5321qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5322 struct qeth_reply *reply,
5323 unsigned long data)
5324{
5325 struct qeth_ipa_cmd *cmd;
5326
5327 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5328 cmd = (struct qeth_ipa_cmd *) data;
5329 if (cmd->hdr.return_code) {
5330 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
e82b0f2c 5331 "Continuing\n",cmd->data.setdelvlan.vlan_id,
508cc2b0
FP		 5332 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5333 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5334 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5335 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5336 }
5337 return 0;
5338}
5339
5340static int
1da177e4
LT		 5341qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5342 enum qeth_ipa_cmds ipacmd)
5343{
1da177e4
LT		 5344 struct qeth_ipa_cmd *cmd;
5345 struct qeth_cmd_buffer *iob;
5346
5347 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5348 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5349 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5350 cmd->data.setdelvlan.vlan_id = i;
e82b0f2c 5351 return qeth_send_ipa_cmd(card, iob,
508cc2b0 5352 qeth_layer2_send_setdelvlan_cb, NULL);
1da177e4
LT		 5353}
5354
5355static void
5356qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5357{
5358 unsigned short i;
5359
5360 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5361
5362 if (!card->vlangrp)
5363 return;
5364 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5c15bdec 5365 if (vlan_group_get_device(card->vlangrp, i) == NULL)
1da177e4
LT		 5366 continue;
5367 if (clear)
5368 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5369 else
5370 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5371 }
5372}
5373
5374/*add_vid is layer 2 used only ....*/
5375static void
5376qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5377{
5378 struct qeth_card *card;
5379
5380 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5381
5382 card = (struct qeth_card *) dev->priv;
5383 if (!card->options.layer2)
5384 return;
5385 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5386}
5387
5388/*... kill_vid used for both modes*/
5389static void
5390qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5391{
5392 struct qeth_card *card;
5393 unsigned long flags;
5394
5395 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5396
5397 card = (struct qeth_card *) dev->priv;
5398 /* free all skbs for the vlan device */
5399 qeth_free_vlan_skbs(card, vid);
5400 spin_lock_irqsave(&card->vlanlock, flags);
5401 /* unregister IP addresses of vlan device */
6c88ad2d 5402 qeth_free_vlan_addresses(card, vid);
5c15bdec 5403 vlan_group_set_device(card->vlangrp, vid, NULL);
1da177e4
LT		 5404 spin_unlock_irqrestore(&card->vlanlock, flags);
5405 if (card->options.layer2)
5406 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5407 qeth_set_multicast_list(card->dev);
5408}
5409#endif
6c951b90
FP		 5410/**
5411 * Examine hardware response to SET_PROMISC_MODE
5412 */
5413static int
e82b0f2c 5414qeth_setadp_promisc_mode_cb(struct qeth_card *card,
6c951b90
FP		 5415 struct qeth_reply *reply,
5416 unsigned long data)
5417{
5418 struct qeth_ipa_cmd *cmd;
5419 struct qeth_ipacmd_setadpparms *setparms;
5420
5421 QETH_DBF_TEXT(trace,4,"prmadpcb");
5422
5423 cmd = (struct qeth_ipa_cmd *) data;
5424 setparms = &(cmd->data.setadapterparms);
e82b0f2c 5425
6c951b90 5426 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
e82b0f2c
JG		 5427 if (cmd->hdr.return_code) {
5428 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
6c951b90
FP		 5429 setparms->data.mode = SET_PROMISC_MODE_OFF;
5430 }
5431 card->info.promisc_mode = setparms->data.mode;
5432 return 0;
5433}
5434/*
5435 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5436 */
5437static void
5438qeth_setadp_promisc_mode(struct qeth_card *card)
5439{
5440 enum qeth_ipa_promisc_modes mode;
5441 struct net_device *dev = card->dev;
5442 struct qeth_cmd_buffer *iob;
5443 struct qeth_ipa_cmd *cmd;
5444
5445 QETH_DBF_TEXT(trace, 4, "setprom");
5446
5447 if (((dev->flags & IFF_PROMISC) &&
5448 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5449 (!(dev->flags & IFF_PROMISC) &&
5450 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5451 return;
5452 mode = SET_PROMISC_MODE_OFF;
5453 if (dev->flags & IFF_PROMISC)
5454 mode = SET_PROMISC_MODE_ON;
5455 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5456
5457 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5458 sizeof(struct qeth_ipacmd_setadpparms));
5459 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5460 cmd->data.setadapterparms.data.mode = mode;
5461 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5462}
1da177e4
LT		 5463
5464/**
5465 * set multicast address on card
5466 */
5467static void
5468qeth_set_multicast_list(struct net_device *dev)
5469{
5470 struct qeth_card *card = (struct qeth_card *) dev->priv;
5471
500f83ab
UB		 5472 if (card->info.type == QETH_CARD_TYPE_OSN)
5473 return ;
e82b0f2c 5474
66cc5d5a 5475 QETH_DBF_TEXT(trace, 3, "setmulti");
1da177e4 5476 qeth_delete_mc_addresses(card);
6c88ad2d
FP		 5477 if (card->options.layer2) {
5478 qeth_layer2_add_multicast(card);
5479 goto out;
5480 }
1da177e4
LT		 5481 qeth_add_multicast_ipv4(card);
5482#ifdef CONFIG_QETH_IPV6
5483 qeth_add_multicast_ipv6(card);
5484#endif
6c88ad2d 5485out:
ee2db684 5486 qeth_set_ip_addr_list(card);
6c951b90
FP		 5487 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5488 return;
ee2db684 5489 qeth_setadp_promisc_mode(card);
1da177e4
LT		 5490}
5491
5492static int
5493qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5494{
5495 return 0;
5496}
5497
5498static void
5499qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5500{
5501 if (dev->type == ARPHRD_IEEE802_TR)
5502 ip_tr_mc_map(ipm, mac);
5503 else
5504 ip_eth_mc_map(ipm, mac);
5505}
5506
5507static struct qeth_ipaddr *
5508qeth_get_addr_buffer(enum qeth_prot_versions prot)
5509{
5510 struct qeth_ipaddr *addr;
5511
88abaab4 5512 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
1da177e4
LT		 5513 if (addr == NULL) {
5514 PRINT_WARN("Not enough memory to add address\n");
5515 return NULL;
5516 }
1da177e4
LT		 5517 addr->type = QETH_IP_TYPE_NORMAL;
5518 addr->proto = prot;
5519 return addr;
5520}
5521
500f83ab
UB		 5522int
5523qeth_osn_assist(struct net_device *dev,
5524 void *data,
5525 int data_len)
5526{
5527 struct qeth_cmd_buffer *iob;
5528 struct qeth_card *card;
5529 int rc;
e82b0f2c 5530
500f83ab
UB		 5531 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5532 if (!dev)
5533 return -ENODEV;
5534 card = (struct qeth_card *)dev->priv;
5535 if (!card)
5536 return -ENODEV;
5537 if ((card->state != CARD_STATE_UP) &&
5538 (card->state != CARD_STATE_SOFTSETUP))
5539 return -ENODEV;
5540 iob = qeth_wait_for_buffer(&card->write);
5541 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5542 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5543 return rc;
5544}
5545
5546static struct net_device *
5547qeth_netdev_by_devno(unsigned char *read_dev_no)
5548{
5549 struct qeth_card *card;
5550 struct net_device *ndev;
5551 unsigned char *readno;
5552 __u16 temp_dev_no, card_dev_no;
5553 char *endp;
5554 unsigned long flags;
5555
5556 ndev = NULL;
5557 memcpy(&temp_dev_no, read_dev_no, 2);
5558 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5559 list_for_each_entry(card, &qeth_card_list.list, list) {
5560 readno = CARD_RDEV_ID(card);
5561 readno += (strlen(readno) - 4);
5562 card_dev_no = simple_strtoul(readno, &endp, 16);
5563 if (card_dev_no == temp_dev_no) {
5564 ndev = card->dev;
5565 break;
5566 }
5567 }
5568 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5569 return ndev;
5570}
5571
5572int
5573qeth_osn_register(unsigned char *read_dev_no,
5574 struct net_device **dev,
5575 int (*assist_cb)(struct net_device *, void *),
5576 int (*data_cb)(struct sk_buff *))
5577{
5578 struct qeth_card * card;
5579
5580 QETH_DBF_TEXT(trace, 2, "osnreg");
5581 *dev = qeth_netdev_by_devno(read_dev_no);
5582 if (*dev == NULL)
5583 return -ENODEV;
5584 card = (struct qeth_card *)(*dev)->priv;
5585 if (!card)
5586 return -ENODEV;
5587 if ((assist_cb == NULL) || (data_cb == NULL))
5588 return -EINVAL;
5589 card->osn_info.assist_cb = assist_cb;
5590 card->osn_info.data_cb = data_cb;
5591 return 0;
5592}
5593
5594void
5595qeth_osn_deregister(struct net_device * dev)
5596{
5597 struct qeth_card *card;
5598
5599 QETH_DBF_TEXT(trace, 2, "osndereg");
5600 if (!dev)
5601 return;
5602 card = (struct qeth_card *)dev->priv;
5603 if (!card)
5604 return;
5605 card->osn_info.assist_cb = NULL;
5606 card->osn_info.data_cb = NULL;
5607 return;
5608}
e82b0f2c 5609
1da177e4
LT		 5610static void
5611qeth_delete_mc_addresses(struct qeth_card *card)
5612{
5613 struct qeth_ipaddr *iptodo;
5614 unsigned long flags;
5615
5616 QETH_DBF_TEXT(trace,4,"delmc");
5617 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5618 if (!iptodo) {
5619 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5620 return;
5621 }
5622 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5623 spin_lock_irqsave(&card->ip_lock, flags);
5624 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5625 kfree(iptodo);
5626 spin_unlock_irqrestore(&card->ip_lock, flags);
5627}
5628
4d284cac 5629static void
1da177e4
LT		 5630qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5631{
5632 struct qeth_ipaddr *ipm;
5633 struct ip_mc_list *im4;
5634 char buf[MAX_ADDR_LEN];
5635
5636 QETH_DBF_TEXT(trace,4,"addmc");
5637 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5638 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5639 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5640 if (!ipm)
5641 continue;
5642 ipm->u.a4.addr = im4->multiaddr;
5643 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5644 ipm->is_multicast = 1;
5645 if (!qeth_add_ip(card,ipm))
5646 kfree(ipm);
5647 }
5648}
5649
5650static inline void
5651qeth_add_vlan_mc(struct qeth_card *card)
5652{
5653#ifdef CONFIG_QETH_VLAN
5654 struct in_device *in_dev;
5655 struct vlan_group *vg;
5656 int i;
5657
5658 QETH_DBF_TEXT(trace,4,"addmcvl");
5659 if ( ((card->options.layer2 == 0) &&
5660 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5661 (card->vlangrp == NULL) )
5662 return ;
5663
5664 vg = card->vlangrp;
5665 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5c15bdec
DA		 5666 struct net_device *netdev = vlan_group_get_device(vg, i);
5667 if (netdev == NULL ||
5668 !(netdev->flags & IFF_UP))
1da177e4 5669 continue;
5c15bdec 5670 in_dev = in_dev_get(netdev);
1da177e4
LT		 5671 if (!in_dev)
5672 continue;
5673 read_lock(&in_dev->mc_list_lock);
5674 qeth_add_mc(card,in_dev);
5675 read_unlock(&in_dev->mc_list_lock);
5676 in_dev_put(in_dev);
5677 }
5678#endif
5679}
5680
5681static void
5682qeth_add_multicast_ipv4(struct qeth_card *card)
5683{
5684 struct in_device *in4_dev;
5685
5686 QETH_DBF_TEXT(trace,4,"chkmcv4");
5687 in4_dev = in_dev_get(card->dev);
5688 if (in4_dev == NULL)
5689 return;
5690 read_lock(&in4_dev->mc_list_lock);
5691 qeth_add_mc(card, in4_dev);
5692 qeth_add_vlan_mc(card);
5693 read_unlock(&in4_dev->mc_list_lock);
5694 in_dev_put(in4_dev);
5695}
5696
6c88ad2d
FP		 5697static void
5698qeth_layer2_add_multicast(struct qeth_card *card)
5699{
5700 struct qeth_ipaddr *ipm;
5701 struct dev_mc_list *dm;
5702
5703 QETH_DBF_TEXT(trace,4,"L2addmc");
5704 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5705 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5706 if (!ipm)
5707 continue;
5708 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5709 ipm->is_multicast = 1;
5710 if (!qeth_add_ip(card, ipm))
5711 kfree(ipm);
5712 }
5713}
5714
1da177e4 5715#ifdef CONFIG_QETH_IPV6
4d284cac 5716static void
1da177e4
LT		 5717qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5718{
5719 struct qeth_ipaddr *ipm;
5720 struct ifmcaddr6 *im6;
5721 char buf[MAX_ADDR_LEN];
5722
5723 QETH_DBF_TEXT(trace,4,"addmc6");
5724 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5725 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5726 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5727 if (!ipm)
5728 continue;
5729 ipm->is_multicast = 1;
5730 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5731 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5732 sizeof(struct in6_addr));
5733 if (!qeth_add_ip(card,ipm))
5734 kfree(ipm);
5735 }
5736}
5737
5738static inline void
5739qeth_add_vlan_mc6(struct qeth_card *card)
5740{
5741#ifdef CONFIG_QETH_VLAN
5742 struct inet6_dev *in_dev;
5743 struct vlan_group *vg;
5744 int i;
5745
5746 QETH_DBF_TEXT(trace,4,"admc6vl");
5747 if ( ((card->options.layer2 == 0) &&
5748 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5749 (card->vlangrp == NULL))
5750 return ;
5751
5752 vg = card->vlangrp;
5753 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5c15bdec
DA		 5754 struct net_device *netdev = vlan_group_get_device(vg, i);
5755 if (netdev == NULL ||
5756 !(netdev->flags & IFF_UP))
1da177e4 5757 continue;
5c15bdec 5758 in_dev = in6_dev_get(netdev);
1da177e4
LT		 5759 if (!in_dev)
5760 continue;
5761 read_lock(&in_dev->lock);
5762 qeth_add_mc6(card,in_dev);
5763 read_unlock(&in_dev->lock);
5764 in6_dev_put(in_dev);
5765 }
5766#endif /* CONFIG_QETH_VLAN */
5767}
5768
5769static void
5770qeth_add_multicast_ipv6(struct qeth_card *card)
5771{
5772 struct inet6_dev *in6_dev;
5773
5774 QETH_DBF_TEXT(trace,4,"chkmcv6");
e82b0f2c 5775 if (!qeth_is_supported(card, IPA_IPV6))
1da177e4 5776 return ;
1da177e4
LT		 5777 in6_dev = in6_dev_get(card->dev);
5778 if (in6_dev == NULL)
5779 return;
5780 read_lock(&in6_dev->lock);
5781 qeth_add_mc6(card, in6_dev);
5782 qeth_add_vlan_mc6(card);
5783 read_unlock(&in6_dev->lock);
5784 in6_dev_put(in6_dev);
5785}
5786#endif /* CONFIG_QETH_IPV6 */
5787
5788static int
5789qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5790 enum qeth_ipa_cmds ipacmd,
5791 int (*reply_cb) (struct qeth_card *,
5792 struct qeth_reply*,
5793 unsigned long))
5794{
5795 struct qeth_ipa_cmd *cmd;
5796 struct qeth_cmd_buffer *iob;
5797
5798 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5799 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5800 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5801 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5802 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5803 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5804}
5805
5806static int
5807qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5808 struct qeth_reply *reply,
5809 unsigned long data)
5810{
5811 struct qeth_ipa_cmd *cmd;
5812 __u8 *mac;
5813
5814 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5815 cmd = (struct qeth_ipa_cmd *) data;
5816 mac = &cmd->data.setdelmac.mac[0];
5817 /* MAC already registered, needed in couple/uncouple case */
5818 if (cmd->hdr.return_code == 0x2005) {
5819 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5820 "already existing on %s \n",
5821 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5822 QETH_CARD_IFNAME(card));
5823 cmd->hdr.return_code = 0;
5824 }
5825 if (cmd->hdr.return_code)
5826 PRINT_ERR("Could not set group MAC " \
5827 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5828 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5829 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5830 return 0;
5831}
5832
5833static int
5834qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5835{
5836 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5837 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5838 qeth_layer2_send_setgroupmac_cb);
5839}
5840
5841static int
5842qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5843 struct qeth_reply *reply,
5844 unsigned long data)
5845{
5846 struct qeth_ipa_cmd *cmd;
5847 __u8 *mac;
5848
5849 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5850 cmd = (struct qeth_ipa_cmd *) data;
5851 mac = &cmd->data.setdelmac.mac[0];
5852 if (cmd->hdr.return_code)
5853 PRINT_ERR("Could not delete group MAC " \
5854 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5855 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5856 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5857 return 0;
5858}
5859
5860static int
5861qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5862{
5863 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5864 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5865 qeth_layer2_send_delgroupmac_cb);
5866}
5867
5868static int
5869qeth_layer2_send_setmac_cb(struct qeth_card *card,
5870 struct qeth_reply *reply,
5871 unsigned long data)
5872{
5873 struct qeth_ipa_cmd *cmd;
5874
5875 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5876 cmd = (struct qeth_ipa_cmd *) data;
5877 if (cmd->hdr.return_code) {
5878 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5879 PRINT_WARN("Error in registering MAC address on " \
5880 "device %s: x%x\n", CARD_BUS_ID(card),
5881 cmd->hdr.return_code);
e08d88cc 5882 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5883 cmd->hdr.return_code = -EIO;
5884 } else {
e08d88cc 5885 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5886 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5887 OSA_ADDR_LEN);
5888 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5889 "successfully registered on device %s\n",
5890 card->dev->dev_addr[0], card->dev->dev_addr[1],
5891 card->dev->dev_addr[2], card->dev->dev_addr[3],
5892 card->dev->dev_addr[4], card->dev->dev_addr[5],
5893 card->dev->name);
5894 }
5895 return 0;
5896}
5897
5898static int
5899qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5900{
5901 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5902 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5903 qeth_layer2_send_setmac_cb);
5904}
5905
5906static int
5907qeth_layer2_send_delmac_cb(struct qeth_card *card,
5908 struct qeth_reply *reply,
5909 unsigned long data)
5910{
5911 struct qeth_ipa_cmd *cmd;
5912
5913 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5914 cmd = (struct qeth_ipa_cmd *) data;
5915 if (cmd->hdr.return_code) {
5916 PRINT_WARN("Error in deregistering MAC address on " \
5917 "device %s: x%x\n", CARD_BUS_ID(card),
5918 cmd->hdr.return_code);
5919 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5920 cmd->hdr.return_code = -EIO;
5921 return 0;
5922 }
e08d88cc 5923 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5924
5925 return 0;
5926}
5927static int
5928qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5929{
5930 QETH_DBF_TEXT(trace, 2, "L2Delmac");
e08d88cc 5931 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
1da177e4
LT		 5932 return 0;
5933 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5934 qeth_layer2_send_delmac_cb);
5935}
5936
5937static int
5938qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5939{
5940 struct sockaddr *addr = p;
5941 struct qeth_card *card;
5942 int rc = 0;
5943
5944 QETH_DBF_TEXT(trace, 3, "setmac");
5945
5946 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5947 QETH_DBF_TEXT(trace, 3, "setmcINV");
5948 return -EOPNOTSUPP;
5949 }
5950 card = (struct qeth_card *) dev->priv;
5951
5952 if (!card->options.layer2) {
e08d88cc 5953 PRINT_WARN("Setting MAC address on %s is not supported "
1da177e4
LT		 5954 "in Layer 3 mode.\n", dev->name);
5955 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5956 return -EOPNOTSUPP;
5957 }
500f83ab
UB		 5958 if (card->info.type == QETH_CARD_TYPE_OSN) {
5959 PRINT_WARN("Setting MAC address on %s is not supported.\n",
5960 dev->name);
5961 QETH_DBF_TEXT(trace, 3, "setmcOSN");
5962 return -EOPNOTSUPP;
5963 }
1da177e4
LT		 5964 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5965 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5966 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5967 if (!rc)
5968 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5969 return rc;
5970}
5971
5972static void
5973qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5974 __u8 command, enum qeth_prot_versions prot)
5975{
5976 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5977 cmd->hdr.command = command;
5978 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5979 cmd->hdr.seqno = card->seqno.ipa;
5980 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5981 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5982 if (card->options.layer2)
5983 cmd->hdr.prim_version_no = 2;
5984 else
5985 cmd->hdr.prim_version_no = 1;
5986 cmd->hdr.param_count = 1;
5987 cmd->hdr.prot_version = prot;
5988 cmd->hdr.ipa_supported = 0;
5989 cmd->hdr.ipa_enabled = 0;
5990}
5991
5992static struct qeth_cmd_buffer *
5993qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5994 enum qeth_prot_versions prot)
5995{
5996 struct qeth_cmd_buffer *iob;
5997 struct qeth_ipa_cmd *cmd;
5998
5999 iob = qeth_wait_for_buffer(&card->write);
6000 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6001 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6002
6003 return iob;
6004}
6005
6006static int
6007qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6008{
6009 int rc;
6010 struct qeth_cmd_buffer *iob;
6011 struct qeth_ipa_cmd *cmd;
6012
6013 QETH_DBF_TEXT(trace,4,"setdelmc");
6014
6015 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6016 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6017 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6018 if (addr->proto == QETH_PROT_IPV6)
6019 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6020 sizeof(struct in6_addr));
6021 else
6022 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6023
6024 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6025
6026 return rc;
6027}
4d284cac 6028static void
1da177e4
LT		 6029qeth_fill_netmask(u8 *netmask, unsigned int len)
6030{
6031 int i,j;
6032 for (i=0;i<16;i++) {
6033 j=(len)-(i*8);
6034 if (j >= 8)
6035 netmask[i] = 0xff;
6036 else if (j > 0)
6037 netmask[i] = (u8)(0xFF00>>j);
6038 else
6039 netmask[i] = 0;
6040 }
6041}
6042
6043static int
6044qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6045 int ipacmd, unsigned int flags)
6046{
6047 int rc;
6048 struct qeth_cmd_buffer *iob;
6049 struct qeth_ipa_cmd *cmd;
6050 __u8 netmask[16];
6051
6052 QETH_DBF_TEXT(trace,4,"setdelip");
6053 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6054
6055 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6056 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6057 if (addr->proto == QETH_PROT_IPV6) {
6058 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6059 sizeof(struct in6_addr));
6060 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6061 memcpy(cmd->data.setdelip6.mask, netmask,
6062 sizeof(struct in6_addr));
6063 cmd->data.setdelip6.flags = flags;
6064 } else {
6065 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6066 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6067 cmd->data.setdelip4.flags = flags;
6068 }
6069
6070 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6071
6072 return rc;
6073}
6074
6075static int
6076qeth_layer2_register_addr_entry(struct qeth_card *card,
6077 struct qeth_ipaddr *addr)
6078{
6079 if (!addr->is_multicast)
6080 return 0;
6081 QETH_DBF_TEXT(trace, 2, "setgmac");
6082 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6083 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6084}
6085
6086static int
6087qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6088 struct qeth_ipaddr *addr)
6089{
6090 if (!addr->is_multicast)
6091 return 0;
6092 QETH_DBF_TEXT(trace, 2, "delgmac");
6093 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6094 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6095}
6096
6097static int
6098qeth_layer3_register_addr_entry(struct qeth_card *card,
6099 struct qeth_ipaddr *addr)
6100{
6101 char buf[50];
6102 int rc;
6103 int cnt = 3;
6104
6105 if (addr->proto == QETH_PROT_IPV4) {
6106 QETH_DBF_TEXT(trace, 2,"setaddr4");
6107 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6108 } else if (addr->proto == QETH_PROT_IPV6) {
6109 QETH_DBF_TEXT(trace, 2, "setaddr6");
6110 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6111 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6112 } else {
6113 QETH_DBF_TEXT(trace, 2, "setaddr?");
6114 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6115 }
6116 do {
6117 if (addr->is_multicast)
6118 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6119 else
6120 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6121 addr->set_flags);
6122 if (rc)
6123 QETH_DBF_TEXT(trace, 2, "failed");
6124 } while ((--cnt > 0) && rc);
6125 if (rc){
6126 QETH_DBF_TEXT(trace, 2, "FAILED");
6127 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6128 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6129 buf, rc, rc);
6130 }
6131 return rc;
6132}
6133
6134static int
6135qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6136 struct qeth_ipaddr *addr)
6137{
6138 //char buf[50];
6139 int rc;
6140
6141 if (addr->proto == QETH_PROT_IPV4) {
6142 QETH_DBF_TEXT(trace, 2,"deladdr4");
6143 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6144 } else if (addr->proto == QETH_PROT_IPV6) {
6145 QETH_DBF_TEXT(trace, 2, "deladdr6");
6146 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6147 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6148 } else {
6149 QETH_DBF_TEXT(trace, 2, "deladdr?");
6150 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6151 }
6152 if (addr->is_multicast)
6153 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6154 else
6155 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6156 addr->del_flags);
6157 if (rc) {
6158 QETH_DBF_TEXT(trace, 2, "failed");
6159 /* TODO: re-activate this warning as soon as we have a
6160 * clean mirco code
6161 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6162 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6163 buf, rc);
6164 */
6165 }
6166 return rc;
6167}
6168
6169static int
6170qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6171{
6172 if (card->options.layer2)
6173 return qeth_layer2_register_addr_entry(card, addr);
6174
6175 return qeth_layer3_register_addr_entry(card, addr);
6176}
6177
6178static int
6179qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6180{
6181 if (card->options.layer2)
6182 return qeth_layer2_deregister_addr_entry(card, addr);
6183
6184 return qeth_layer3_deregister_addr_entry(card, addr);
6185}
6186
6187static u32
6188qeth_ethtool_get_tx_csum(struct net_device *dev)
6189{
6190 /* We may need to say that we support tx csum offload if
6191 * we do EDDP or TSO. There are discussions going on to
6192 * enforce rules in the stack and in ethtool that make
6193 * SG and TSO depend on HW_CSUM. At the moment there are
6194 * no such rules....
6195 * If we say yes here, we have to checksum outbound packets
6196 * any time. */
6197 return 0;
6198}
6199
6200static int
6201qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6202{
6203 return -EINVAL;
6204}
6205
6206static u32
6207qeth_ethtool_get_rx_csum(struct net_device *dev)
6208{
6209 struct qeth_card *card = (struct qeth_card *)dev->priv;
6210
6211 return (card->options.checksum_type == HW_CHECKSUMMING);
6212}
6213
6214static int
6215qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6216{
6217 struct qeth_card *card = (struct qeth_card *)dev->priv;
6218
6219 if ((card->state != CARD_STATE_DOWN) &&
6220 (card->state != CARD_STATE_RECOVER))
6221 return -EPERM;
6222 if (data)
6223 card->options.checksum_type = HW_CHECKSUMMING;
6224 else
6225 card->options.checksum_type = SW_CHECKSUMMING;
6226 return 0;
6227}
6228
6229static u32
6230qeth_ethtool_get_sg(struct net_device *dev)
6231{
6232 struct qeth_card *card = (struct qeth_card *)dev->priv;
6233
6234 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6235 (dev->features & NETIF_F_SG));
6236}
6237
6238static int
6239qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6240{
6241 struct qeth_card *card = (struct qeth_card *)dev->priv;
6242
6243 if (data) {
6244 if (card->options.large_send != QETH_LARGE_SEND_NO)
6245 dev->features |= NETIF_F_SG;
6246 else {
6247 dev->features &= ~NETIF_F_SG;
6248 return -EINVAL;
6249 }
6250 } else
6251 dev->features &= ~NETIF_F_SG;
6252 return 0;
6253}
6254
6255static u32
6256qeth_ethtool_get_tso(struct net_device *dev)
6257{
6258 struct qeth_card *card = (struct qeth_card *)dev->priv;
6259
6260 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6261 (dev->features & NETIF_F_TSO));
6262}
6263
6264static int
6265qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6266{
6267 struct qeth_card *card = (struct qeth_card *)dev->priv;
6268
6269 if (data) {
6270 if (card->options.large_send != QETH_LARGE_SEND_NO)
6271 dev->features |= NETIF_F_TSO;
6272 else {
6273 dev->features &= ~NETIF_F_TSO;
6274 return -EINVAL;
6275 }
6276 } else
6277 dev->features &= ~NETIF_F_TSO;
6278 return 0;
6279}
6280
6281static struct ethtool_ops qeth_ethtool_ops = {
6282 .get_tx_csum = qeth_ethtool_get_tx_csum,
6283 .set_tx_csum = qeth_ethtool_set_tx_csum,
6284 .get_rx_csum = qeth_ethtool_get_rx_csum,
6285 .set_rx_csum = qeth_ethtool_set_rx_csum,
6286 .get_sg = qeth_ethtool_get_sg,
6287 .set_sg = qeth_ethtool_set_sg,
6288 .get_tso = qeth_ethtool_get_tso,
6289 .set_tso = qeth_ethtool_set_tso,
6290};
6291
2d36c16e
FB		 6292static int
6293qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6294{
6295 struct qeth_card *card;
6296 struct ethhdr *eth;
6297
6298 card = qeth_get_card_from_dev(skb->dev);
6299 if (card->options.layer2)
6300 goto haveheader;
6301#ifdef CONFIG_QETH_IPV6
6302 /* cause of the manipulated arp constructor and the ARP
6303 flag for OSAE devices we have some nasty exceptions */
6304 if (card->info.type == QETH_CARD_TYPE_OSAE) {
6305 if (!card->options.fake_ll) {
6306 if ((skb->pkt_type==PACKET_OUTGOING) &&
6307 (skb->protocol==ETH_P_IPV6))
6308 goto haveheader;
6309 else
6310 return 0;
6311 } else {
6312 if ((skb->pkt_type==PACKET_OUTGOING) &&
6313 (skb->protocol==ETH_P_IP))
6314 return 0;
6315 else
6316 goto haveheader;
6317 }
6318 }
6319#endif
6320 if (!card->options.fake_ll)
6321 return 0;
6322haveheader:
6323 eth = eth_hdr(skb);
6324 memcpy(haddr, eth->h_source, ETH_ALEN);
6325 return ETH_ALEN;
6326}
6327
1da177e4
LT		 6328static int
6329qeth_netdev_init(struct net_device *dev)
6330{
6331 struct qeth_card *card;
6332
6333 card = (struct qeth_card *) dev->priv;
6334
6335 QETH_DBF_TEXT(trace,3,"initdev");
6336
6337 dev->tx_timeout = &qeth_tx_timeout;
6338 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6339 dev->open = qeth_open;
6340 dev->stop = qeth_stop;
6341 dev->hard_start_xmit = qeth_hard_start_xmit;
6342 dev->do_ioctl = qeth_do_ioctl;
6343 dev->get_stats = qeth_get_stats;
6344 dev->change_mtu = qeth_change_mtu;
6345 dev->neigh_setup = qeth_neigh_setup;
6346 dev->set_multicast_list = qeth_set_multicast_list;
6347#ifdef CONFIG_QETH_VLAN
6348 dev->vlan_rx_register = qeth_vlan_rx_register;
6349 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6350 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6351#endif
1da177e4
LT		 6352 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6353 dev->rebuild_header = NULL;
6354 dev->hard_header = NULL;
1da177e4
LT		 6355 dev->header_cache_update = NULL;
6356 dev->hard_header_cache = NULL;
6357 }
6358#ifdef CONFIG_QETH_IPV6
6359 /*IPv6 address autoconfiguration stuff*/
6360 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6361 card->dev->dev_id = card->info.unique_id & 0xffff;
6362#endif
e82b0f2c 6363 if (card->options.fake_ll &&
ba1aa084
UB		 6364 (qeth_get_netdev_flags(card) & IFF_NOARP))
6365 dev->hard_header = qeth_fake_header;
2d36c16e
FB		 6366 if (dev->type == ARPHRD_IEEE802_TR)
6367 dev->hard_header_parse = NULL;
6368 else
6369 dev->hard_header_parse = qeth_hard_header_parse;
1da177e4
LT		 6370 dev->set_mac_address = qeth_layer2_set_mac_address;
6371 dev->flags |= qeth_get_netdev_flags(card);
6372 if ((card->options.fake_broadcast) ||
6373 (card->info.broadcast_capable))
6374 dev->flags |= IFF_BROADCAST;
6375 dev->hard_header_len =
6376 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6377 dev->addr_len = OSA_ADDR_LEN;
6378 dev->mtu = card->info.initial_mtu;
500f83ab
UB		 6379 if (card->info.type != QETH_CARD_TYPE_OSN)
6380 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
1da177e4
LT		 6381 SET_MODULE_OWNER(dev);
6382 return 0;
6383}
6384
6385static void
6386qeth_init_func_level(struct qeth_card *card)
6387{
6388 if (card->ipato.enabled) {
6389 if (card->info.type == QETH_CARD_TYPE_IQD)
6390 card->info.func_level =
6391 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6392 else
6393 card->info.func_level =
6394 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6395 } else {
6396 if (card->info.type == QETH_CARD_TYPE_IQD)
500f83ab 6397 /*FIXME:why do we have same values for dis and ena for osae??? */
1da177e4
LT		 6398 card->info.func_level =
6399 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6400 else
6401 card->info.func_level =
6402 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6403 }
6404}
6405
6406/**
6407 * hardsetup card, initialize MPC and QDIO stuff
6408 */
6409static int
6410qeth_hardsetup_card(struct qeth_card *card)
6411{
6412 int retries = 3;
6413 int rc;
6414
6415 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6416
6417retry:
6418 if (retries < 3){
6419 PRINT_WARN("Retrying to do IDX activates.\n");
6420 ccw_device_set_offline(CARD_DDEV(card));
6421 ccw_device_set_offline(CARD_WDEV(card));
6422 ccw_device_set_offline(CARD_RDEV(card));
6423 ccw_device_set_online(CARD_RDEV(card));
6424 ccw_device_set_online(CARD_WDEV(card));
6425 ccw_device_set_online(CARD_DDEV(card));
6426 }
500f83ab 6427 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 6428 if (rc == -ERESTARTSYS) {
6429 QETH_DBF_TEXT(setup, 2, "break1");
6430 return rc;
6431 } else if (rc) {
6432 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6433 if (--retries < 0)
6434 goto out;
6435 else
6436 goto retry;
6437 }
6438 if ((rc = qeth_get_unitaddr(card))){
6439 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6440 return rc;
6441 }
6442 qeth_init_tokens(card);
6443 qeth_init_func_level(card);
6444 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6445 if (rc == -ERESTARTSYS) {
6446 QETH_DBF_TEXT(setup, 2, "break2");
6447 return rc;
6448 } else if (rc) {
6449 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6450 if (--retries < 0)
6451 goto out;
6452 else
6453 goto retry;
6454 }
6455 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6456 if (rc == -ERESTARTSYS) {
6457 QETH_DBF_TEXT(setup, 2, "break3");
6458 return rc;
6459 } else if (rc) {
6460 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6461 if (--retries < 0)
6462 goto out;
6463 else
6464 goto retry;
6465 }
6466 if ((rc = qeth_mpc_initialize(card))){
6467 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6468 goto out;
6469 }
6470 /*network device will be recovered*/
6471 if (card->dev) {
6472 card->dev->hard_header = card->orig_hard_header;
e82b0f2c 6473 if (card->options.fake_ll &&
b85e1fa1
UB		 6474 (qeth_get_netdev_flags(card) & IFF_NOARP))
6475 card->dev->hard_header = qeth_fake_header;
1da177e4
LT		 6476 return 0;
6477 }
6478 /* at first set_online allocate netdev */
6479 card->dev = qeth_get_netdevice(card->info.type,
6480 card->info.link_type);
6481 if (!card->dev){
500f83ab
UB		 6482 qeth_qdio_clear_card(card, card->info.type !=
6483 QETH_CARD_TYPE_IQD);
1da177e4
LT		 6484 rc = -ENODEV;
6485 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6486 goto out;
6487 }
6488 card->dev->priv = card;
6489 card->orig_hard_header = card->dev->hard_header;
6490 card->dev->type = qeth_get_arphdr_type(card->info.type,
6491 card->info.link_type);
6492 card->dev->init = qeth_netdev_init;
6493 return 0;
6494out:
6495 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6496 return rc;
6497}
6498
6499static int
6500qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6501 unsigned long data)
6502{
6503 struct qeth_ipa_cmd *cmd;
6504
6505 QETH_DBF_TEXT(trace,4,"defadpcb");
6506
6507 cmd = (struct qeth_ipa_cmd *) data;
6508 if (cmd->hdr.return_code == 0){
6509 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6510 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6511 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6512#ifdef CONFIG_QETH_IPV6
6513 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6514 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6515#endif
6516 }
6517 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6518 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6519 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6520 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6521 }
6522 return 0;
6523}
6524
6525static int
6526qeth_default_setadapterparms_cb(struct qeth_card *card,
6527 struct qeth_reply *reply,
6528 unsigned long data)
6529{
6530 struct qeth_ipa_cmd *cmd;
6531
6532 QETH_DBF_TEXT(trace,4,"defadpcb");
6533
6534 cmd = (struct qeth_ipa_cmd *) data;
6535 if (cmd->hdr.return_code == 0)
6536 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6537 return 0;
6538}
6539
6c951b90
FP		 6540
6541
1da177e4
LT		 6542static int
6543qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6544 unsigned long data)
6545{
6546 struct qeth_ipa_cmd *cmd;
6547
6548 QETH_DBF_TEXT(trace,3,"quyadpcb");
6549
6550 cmd = (struct qeth_ipa_cmd *) data;
6551 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6552 card->info.link_type =
6553 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6554 card->options.adp.supported_funcs =
6555 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6556 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6557}
6558
6559static int
6560qeth_query_setadapterparms(struct qeth_card *card)
6561{
6562 int rc;
6563 struct qeth_cmd_buffer *iob;
6564
6565 QETH_DBF_TEXT(trace,3,"queryadp");
6566 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6567 sizeof(struct qeth_ipacmd_setadpparms));
6568 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6569 return rc;
6570}
6571
6572static int
6573qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6574 struct qeth_reply *reply,
6575 unsigned long data)
6576{
6577 struct qeth_ipa_cmd *cmd;
6578
6579 QETH_DBF_TEXT(trace,4,"chgmaccb");
6580
6581 cmd = (struct qeth_ipa_cmd *) data;
e08d88cc 6582 if (!card->options.layer2 || card->info.guestlan ||
e82b0f2c 6583 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
e08d88cc
FP		 6584 memcpy(card->dev->dev_addr,
6585 &cmd->data.setadapterparms.data.change_addr.addr,
6586 OSA_ADDR_LEN);
6587 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6588 }
1da177e4
LT		 6589 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6590 return 0;
6591}
6592
6593static int
6594qeth_setadpparms_change_macaddr(struct qeth_card *card)
6595{
6596 int rc;
6597 struct qeth_cmd_buffer *iob;
6598 struct qeth_ipa_cmd *cmd;
6599
6600 QETH_DBF_TEXT(trace,4,"chgmac");
6601
6602 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6603 sizeof(struct qeth_ipacmd_setadpparms));
6604 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6605 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6606 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6607 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6608 card->dev->dev_addr, OSA_ADDR_LEN);
6609 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6610 NULL);
6611 return rc;
6612}
6613
6614static int
6615qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6616{
6617 int rc;
6618 struct qeth_cmd_buffer *iob;
6619 struct qeth_ipa_cmd *cmd;
6620
6621 QETH_DBF_TEXT(trace,4,"adpmode");
6622
6623 iob = qeth_get_adapter_cmd(card, command,
6624 sizeof(struct qeth_ipacmd_setadpparms));
6625 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6626 cmd->data.setadapterparms.data.mode = mode;
6627 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6628 NULL);
6629 return rc;
6630}
6631
4d284cac 6632static int
1da177e4
LT		 6633qeth_setadapter_hstr(struct qeth_card *card)
6634{
6635 int rc;
6636
6637 QETH_DBF_TEXT(trace,4,"adphstr");
6638
6639 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6640 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6641 card->options.broadcast_mode);
6642 if (rc)
6643 PRINT_WARN("couldn't set broadcast mode on "
6644 "device %s: x%x\n",
6645 CARD_BUS_ID(card), rc);
6646 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6647 card->options.macaddr_mode);
6648 if (rc)
6649 PRINT_WARN("couldn't set macaddr mode on "
6650 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6651 return rc;
6652 }
6653 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6654 PRINT_WARN("set adapter parameters not available "
6655 "to set broadcast mode, using ALLRINGS "
6656 "on device %s:\n", CARD_BUS_ID(card));
6657 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6658 PRINT_WARN("set adapter parameters not available "
6659 "to set macaddr mode, using NONCANONICAL "
6660 "on device %s:\n", CARD_BUS_ID(card));
6661 return 0;
6662}
6663
6664static int
6665qeth_setadapter_parms(struct qeth_card *card)
6666{
6667 int rc;
6668
6669 QETH_DBF_TEXT(setup, 2, "setadprm");
6670
6671 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6672 PRINT_WARN("set adapter parameters not supported "
6673 "on device %s.\n",
6674 CARD_BUS_ID(card));
6675 QETH_DBF_TEXT(setup, 2, " notsupp");
6676 return 0;
6677 }
6678 rc = qeth_query_setadapterparms(card);
6679 if (rc) {
6680 PRINT_WARN("couldn't set adapter parameters on device %s: "
6681 "x%x\n", CARD_BUS_ID(card), rc);
6682 return rc;
6683 }
6684 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6685 rc = qeth_setadpparms_change_macaddr(card);
6686 if (rc)
6687 PRINT_WARN("couldn't get MAC address on "
6688 "device %s: x%x\n",
6689 CARD_BUS_ID(card), rc);
6690 }
6691
6692 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6693 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6694 rc = qeth_setadapter_hstr(card);
6695
6696 return rc;
6697}
6698
6699static int
6700qeth_layer2_initialize(struct qeth_card *card)
6701{
6702 int rc = 0;
6703
6704
6705 QETH_DBF_TEXT(setup, 2, "doL2init");
6706 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6707
6c951b90
FP		 6708 rc = qeth_query_setadapterparms(card);
6709 if (rc) {
6710 PRINT_WARN("could not query adapter parameters on device %s: "
6711 "x%x\n", CARD_BUS_ID(card), rc);
6712 }
6713
1da177e4
LT		 6714 rc = qeth_setadpparms_change_macaddr(card);
6715 if (rc) {
6716 PRINT_WARN("couldn't get MAC address on "
6717 "device %s: x%x\n",
6718 CARD_BUS_ID(card), rc);
6719 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6720 return rc;
6721 }
6722 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6723
6724 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6725 if (rc)
6726 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6727 return 0;
6728}
6729
6730
6731static int
6732qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6733 enum qeth_prot_versions prot)
6734{
6735 int rc;
6736 struct qeth_cmd_buffer *iob;
6737
6738 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6739 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6740
6741 return rc;
6742}
6743
6744static int
6745qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6746{
6747 int rc;
6748
6749 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6750
6751 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6752 return rc;
6753}
6754
6755static int
6756qeth_send_stoplan(struct qeth_card *card)
6757{
6758 int rc = 0;
6759
6760 /*
6761 * TODO: according to the IPA format document page 14,
6762 * TCP/IP (we!) never issue a STOPLAN
6763 * is this right ?!?
6764 */
6765 QETH_DBF_TEXT(trace, 2, "stoplan");
6766
6767 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6768 return rc;
6769}
6770
6771static int
6772qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6773 unsigned long data)
6774{
6775 struct qeth_ipa_cmd *cmd;
6776
6777 QETH_DBF_TEXT(setup, 2, "qipasscb");
6778
6779 cmd = (struct qeth_ipa_cmd *) data;
6780 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6781 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6782 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
9123e0d7
UB		 6783 /* Disable IPV6 support hard coded for Hipersockets */
6784 if(card->info.type == QETH_CARD_TYPE_IQD)
6785 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
1da177e4
LT		 6786 } else {
6787#ifdef CONFIG_QETH_IPV6
6788 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6789 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6790#endif
6791 }
6792 QETH_DBF_TEXT(setup, 2, "suppenbl");
6793 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6794 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6795 return 0;
6796}
6797
6798static int
6799qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6800{
6801 int rc;
6802 struct qeth_cmd_buffer *iob;
6803
6804 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6805 if (card->options.layer2) {
6806 QETH_DBF_TEXT(setup, 2, "noprmly2");
6807 return -EPERM;
6808 }
6809
6810 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6811 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6812 return rc;
6813}
6814
6815static struct qeth_cmd_buffer *
6816qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6817 __u16 cmd_code, __u16 len,
6818 enum qeth_prot_versions prot)
6819{
6820 struct qeth_cmd_buffer *iob;
6821 struct qeth_ipa_cmd *cmd;
6822
6823 QETH_DBF_TEXT(trace,4,"getasscm");
6824 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6825
6826 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6827 cmd->data.setassparms.hdr.assist_no = ipa_func;
6828 cmd->data.setassparms.hdr.length = 8 + len;
6829 cmd->data.setassparms.hdr.command_code = cmd_code;
6830 cmd->data.setassparms.hdr.return_code = 0;
6831 cmd->data.setassparms.hdr.seq_no = 0;
6832
6833 return iob;
6834}
6835
6836static int
6837qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6838 __u16 len, long data,
6839 int (*reply_cb)
6840 (struct qeth_card *,struct qeth_reply *,unsigned long),
6841 void *reply_param)
6842{
6843 int rc;
6844 struct qeth_ipa_cmd *cmd;
6845
6846 QETH_DBF_TEXT(trace,4,"sendassp");
6847
6848 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6849 if (len <= sizeof(__u32))
6850 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1380fee2 6851 else /* (len > sizeof(__u32)) */
1da177e4
LT		 6852 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6853
6854 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6855 return rc;
6856}
6857
6858#ifdef CONFIG_QETH_IPV6
6859static int
6860qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6861 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6862
6863{
6864 int rc;
6865 struct qeth_cmd_buffer *iob;
6866
6867 QETH_DBF_TEXT(trace,4,"simassp6");
6868 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6869 0, QETH_PROT_IPV6);
6870 rc = qeth_send_setassparms(card, iob, 0, 0,
6871 qeth_default_setassparms_cb, NULL);
6872 return rc;
6873}
6874#endif
6875
6876static int
6877qeth_send_simple_setassparms(struct qeth_card *card,
6878 enum qeth_ipa_funcs ipa_func,
6879 __u16 cmd_code, long data)
6880{
6881 int rc;
6882 int length = 0;
6883 struct qeth_cmd_buffer *iob;
6884
6885 QETH_DBF_TEXT(trace,4,"simassp4");
6886 if (data)
6887 length = sizeof(__u32);
6888 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6889 length, QETH_PROT_IPV4);
6890 rc = qeth_send_setassparms(card, iob, length, data,
6891 qeth_default_setassparms_cb, NULL);
6892 return rc;
6893}
6894
4d284cac 6895static int
1da177e4
LT		 6896qeth_start_ipa_arp_processing(struct qeth_card *card)
6897{
6898 int rc;
6899
6900 QETH_DBF_TEXT(trace,3,"ipaarp");
6901
6902 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6903 PRINT_WARN("ARP processing not supported "
6904 "on %s!\n", QETH_CARD_IFNAME(card));
6905 return 0;
6906 }
6907 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6908 IPA_CMD_ASS_START, 0);
6909 if (rc) {
6910 PRINT_WARN("Could not start ARP processing "
6911 "assist on %s: 0x%x\n",
6912 QETH_CARD_IFNAME(card), rc);
6913 }
6914 return rc;
6915}
6916
6917static int
6918qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6919{
6920 int rc;
6921
6922 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6923
6924 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6925 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6926 QETH_CARD_IFNAME(card));
6927 return -EOPNOTSUPP;
6928 }
6929
6930 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6931 IPA_CMD_ASS_START, 0);
6932 if (rc) {
6933 PRINT_WARN("Could not start Hardware IP fragmentation "
6934 "assist on %s: 0x%x\n",
6935 QETH_CARD_IFNAME(card), rc);
6936 } else
6937 PRINT_INFO("Hardware IP fragmentation enabled \n");
6938 return rc;
6939}
6940
6941static int
6942qeth_start_ipa_source_mac(struct qeth_card *card)
6943{
6944 int rc;
6945
6946 QETH_DBF_TEXT(trace,3,"stsrcmac");
6947
6948 if (!card->options.fake_ll)
6949 return -EOPNOTSUPP;
6950
6951 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6952 PRINT_INFO("Inbound source address not "
6953 "supported on %s\n", QETH_CARD_IFNAME(card));
6954 return -EOPNOTSUPP;
6955 }
6956
6957 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6958 IPA_CMD_ASS_START, 0);
6959 if (rc)
6960 PRINT_WARN("Could not start inbound source "
6961 "assist on %s: 0x%x\n",
6962 QETH_CARD_IFNAME(card), rc);
6963 return rc;
6964}
6965
6966static int
6967qeth_start_ipa_vlan(struct qeth_card *card)
6968{
6969 int rc = 0;
6970
6971 QETH_DBF_TEXT(trace,3,"strtvlan");
6972
6973#ifdef CONFIG_QETH_VLAN
6974 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6975 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6976 return -EOPNOTSUPP;
6977 }
6978
6979 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6980 IPA_CMD_ASS_START,0);
6981 if (rc) {
6982 PRINT_WARN("Could not start vlan "
6983 "assist on %s: 0x%x\n",
6984 QETH_CARD_IFNAME(card), rc);
6985 } else {
6986 PRINT_INFO("VLAN enabled \n");
6987 card->dev->features |=
6988 NETIF_F_HW_VLAN_FILTER |
6989 NETIF_F_HW_VLAN_TX |
6990 NETIF_F_HW_VLAN_RX;
6991 }
6992#endif /* QETH_VLAN */
6993 return rc;
6994}
6995
6996static int
6997qeth_start_ipa_multicast(struct qeth_card *card)
6998{
6999 int rc;
7000
7001 QETH_DBF_TEXT(trace,3,"stmcast");
7002
7003 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7004 PRINT_WARN("Multicast not supported on %s\n",
7005 QETH_CARD_IFNAME(card));
7006 return -EOPNOTSUPP;
7007 }
7008
7009 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7010 IPA_CMD_ASS_START,0);
7011 if (rc) {
7012 PRINT_WARN("Could not start multicast "
7013 "assist on %s: rc=%i\n",
7014 QETH_CARD_IFNAME(card), rc);
7015 } else {
7016 PRINT_INFO("Multicast enabled\n");
7017 card->dev->flags |= IFF_MULTICAST;
7018 }
7019 return rc;
7020}
7021
7022#ifdef CONFIG_QETH_IPV6
7023static int
7024qeth_softsetup_ipv6(struct qeth_card *card)
7025{
7026 int rc;
7027
7028 QETH_DBF_TEXT(trace,3,"softipv6");
7029
1da177e4
LT		 7030 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7031 if (rc) {
7032 PRINT_ERR("IPv6 startlan failed on %s\n",
7033 QETH_CARD_IFNAME(card));
7034 return rc;
7035 }
1da177e4
LT		 7036 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7037 if (rc) {
7038 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7039 QETH_CARD_IFNAME(card));
7040 return rc;
7041 }
7042 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7043 IPA_CMD_ASS_START, 3);
7044 if (rc) {
7045 PRINT_WARN("IPv6 start assist (version 4) failed "
7046 "on %s: 0x%x\n",
7047 QETH_CARD_IFNAME(card), rc);
7048 return rc;
7049 }
7050 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7051 IPA_CMD_ASS_START);
7052 if (rc) {
7053 PRINT_WARN("IPV6 start assist (version 6) failed "
7054 "on %s: 0x%x\n",
7055 QETH_CARD_IFNAME(card), rc);
7056 return rc;
7057 }
7058 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7059 IPA_CMD_ASS_START);
7060 if (rc) {
7061 PRINT_WARN("Could not enable passthrough "
7062 "on %s: 0x%x\n",
7063 QETH_CARD_IFNAME(card), rc);
7064 return rc;
7065 }
7066 PRINT_INFO("IPV6 enabled \n");
7067 return 0;
7068}
7069
7070#endif
7071
7072static int
7073qeth_start_ipa_ipv6(struct qeth_card *card)
7074{
7075 int rc = 0;
7076#ifdef CONFIG_QETH_IPV6
7077 QETH_DBF_TEXT(trace,3,"strtipv6");
7078
7079 if (!qeth_is_supported(card, IPA_IPV6)) {
7080 PRINT_WARN("IPv6 not supported on %s\n",
7081 QETH_CARD_IFNAME(card));
7082 return 0;
7083 }
7084 rc = qeth_softsetup_ipv6(card);
7085#endif
7086 return rc ;
7087}
7088
7089static int
7090qeth_start_ipa_broadcast(struct qeth_card *card)
7091{
7092 int rc;
7093
7094 QETH_DBF_TEXT(trace,3,"stbrdcst");
7095 card->info.broadcast_capable = 0;
7096 if (!qeth_is_supported(card, IPA_FILTERING)) {
7097 PRINT_WARN("Broadcast not supported on %s\n",
7098 QETH_CARD_IFNAME(card));
7099 rc = -EOPNOTSUPP;
7100 goto out;
7101 }
7102 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7103 IPA_CMD_ASS_START, 0);
7104 if (rc) {
7105 PRINT_WARN("Could not enable broadcasting filtering "
7106 "on %s: 0x%x\n",
7107 QETH_CARD_IFNAME(card), rc);
7108 goto out;
7109 }
7110
7111 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7112 IPA_CMD_ASS_CONFIGURE, 1);
7113 if (rc) {
7114 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7115 QETH_CARD_IFNAME(card), rc);
7116 goto out;
7117 }
7118 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7119 PRINT_INFO("Broadcast enabled \n");
7120 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7121 IPA_CMD_ASS_ENABLE, 1);
7122 if (rc) {
7123 PRINT_WARN("Could not set up broadcast echo filtering on "
7124 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7125 goto out;
7126 }
7127 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7128out:
7129 if (card->info.broadcast_capable)
7130 card->dev->flags |= IFF_BROADCAST;
7131 else
7132 card->dev->flags &= ~IFF_BROADCAST;
7133 return rc;
7134}
7135
7136static int
7137qeth_send_checksum_command(struct qeth_card *card)
7138{
7139 int rc;
7140
7141 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7142 IPA_CMD_ASS_START, 0);
7143 if (rc) {
7144 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7145 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7146 QETH_CARD_IFNAME(card), rc);
7147 return rc;
7148 }
7149 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7150 IPA_CMD_ASS_ENABLE,
7151 card->info.csum_mask);
7152 if (rc) {
7153 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7154 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7155 QETH_CARD_IFNAME(card), rc);
7156 return rc;
7157 }
7158 return 0;
7159}
7160
7161static int
7162qeth_start_ipa_checksum(struct qeth_card *card)
7163{
7164 int rc = 0;
7165
7166 QETH_DBF_TEXT(trace,3,"strtcsum");
7167
7168 if (card->options.checksum_type == NO_CHECKSUMMING) {
7169 PRINT_WARN("Using no checksumming on %s.\n",
7170 QETH_CARD_IFNAME(card));
7171 return 0;
7172 }
7173 if (card->options.checksum_type == SW_CHECKSUMMING) {
7174 PRINT_WARN("Using SW checksumming on %s.\n",
7175 QETH_CARD_IFNAME(card));
7176 return 0;
7177 }
7178 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7179 PRINT_WARN("Inbound HW Checksumming not "
7180 "supported on %s,\ncontinuing "
7181 "using Inbound SW Checksumming\n",
7182 QETH_CARD_IFNAME(card));
7183 card->options.checksum_type = SW_CHECKSUMMING;
7184 return 0;
7185 }
7186 rc = qeth_send_checksum_command(card);
7187 if (!rc) {
7188 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7189 }
7190 return rc;
7191}
7192
7193static int
7194qeth_start_ipa_tso(struct qeth_card *card)
7195{
7196 int rc;
7197
7198 QETH_DBF_TEXT(trace,3,"sttso");
7199
7200 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7201 PRINT_WARN("Outbound TSO not supported on %s\n",
7202 QETH_CARD_IFNAME(card));
7203 rc = -EOPNOTSUPP;
7204 } else {
7205 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7206 IPA_CMD_ASS_START,0);
7207 if (rc)
7208 PRINT_WARN("Could not start outbound TSO "
7209 "assist on %s: rc=%i\n",
7210 QETH_CARD_IFNAME(card), rc);
7211 else
7212 PRINT_INFO("Outbound TSO enabled\n");
7213 }
7214 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7215 card->options.large_send = QETH_LARGE_SEND_NO;
7216 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7217 }
7218 return rc;
7219}
7220
7221static int
7222qeth_start_ipassists(struct qeth_card *card)
7223{
7224 QETH_DBF_TEXT(trace,3,"strtipas");
7225 qeth_start_ipa_arp_processing(card); /* go on*/
7226 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7227 qeth_start_ipa_source_mac(card); /* go on*/
7228 qeth_start_ipa_vlan(card); /* go on*/
7229 qeth_start_ipa_multicast(card); /* go on*/
7230 qeth_start_ipa_ipv6(card); /* go on*/
7231 qeth_start_ipa_broadcast(card); /* go on*/
7232 qeth_start_ipa_checksum(card); /* go on*/
7233 qeth_start_ipa_tso(card); /* go on*/
7234 return 0;
7235}
7236
7237static int
7238qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7239 enum qeth_prot_versions prot)
7240{
7241 int rc;
7242 struct qeth_ipa_cmd *cmd;
7243 struct qeth_cmd_buffer *iob;
7244
7245 QETH_DBF_TEXT(trace,4,"setroutg");
7246 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7247 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7248 cmd->data.setrtg.type = (type);
7249 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7250
7251 return rc;
7252
7253}
7254
7255static void
7256qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7257 enum qeth_prot_versions prot)
7258{
7259 if (card->info.type == QETH_CARD_TYPE_IQD) {
7260 switch (*type) {
7261 case NO_ROUTER:
7262 case PRIMARY_CONNECTOR:
7263 case SECONDARY_CONNECTOR:
7264 case MULTICAST_ROUTER:
7265 return;
7266 default:
7267 goto out_inval;
7268 }
7269 } else {
7270 switch (*type) {
7271 case NO_ROUTER:
7272 case PRIMARY_ROUTER:
7273 case SECONDARY_ROUTER:
7274 return;
7275 case MULTICAST_ROUTER:
7276 if (qeth_is_ipafunc_supported(card, prot,
7277 IPA_OSA_MC_ROUTER))
7278 return;
7279 default:
7280 goto out_inval;
7281 }
7282 }
7283out_inval:
7284 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7285 "Router status set to 'no router'.\n",
7286 ((*type == PRIMARY_ROUTER)? "primary router" :
7287 (*type == SECONDARY_ROUTER)? "secondary router" :
7288 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7289 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7290 (*type == MULTICAST_ROUTER)? "multicast router" :
7291 "unknown"),
7292 card->dev->name);
7293 *type = NO_ROUTER;
7294}
7295
7296int
7297qeth_setrouting_v4(struct qeth_card *card)
7298{
7299 int rc;
7300
7301 QETH_DBF_TEXT(trace,3,"setrtg4");
7302
7303 qeth_correct_routing_type(card, &card->options.route4.type,
7304 QETH_PROT_IPV4);
7305
7306 rc = qeth_send_setrouting(card, card->options.route4.type,
7307 QETH_PROT_IPV4);
7308 if (rc) {
7309 card->options.route4.type = NO_ROUTER;
7310 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7311 "Type set to 'no router'.\n",
7312 rc, QETH_CARD_IFNAME(card));
7313 }
7314 return rc;
7315}
7316
7317int
7318qeth_setrouting_v6(struct qeth_card *card)
7319{
7320 int rc = 0;
7321
7322 QETH_DBF_TEXT(trace,3,"setrtg6");
7323#ifdef CONFIG_QETH_IPV6
7324
8b98a37c
FP		 7325 if (!qeth_is_supported(card, IPA_IPV6))
7326 return 0;
1da177e4
LT		 7327 qeth_correct_routing_type(card, &card->options.route6.type,
7328 QETH_PROT_IPV6);
7329
1da177e4
LT		 7330 rc = qeth_send_setrouting(card, card->options.route6.type,
7331 QETH_PROT_IPV6);
7332 if (rc) {
7333 card->options.route6.type = NO_ROUTER;
7334 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7335 "Type set to 'no router'.\n",
7336 rc, QETH_CARD_IFNAME(card));
7337 }
7338#endif
7339 return rc;
7340}
7341
7342int
9cb90de8 7343qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
1da177e4
LT		 7344{
7345 int rc = 0;
7346
9cb90de8
FP		 7347 if (card->dev == NULL) {
7348 card->options.large_send = type;
1da177e4 7349 return 0;
9cb90de8 7350 }
b85e1fa1
UB		 7351 if (card->state == CARD_STATE_UP)
7352 netif_tx_disable(card->dev);
9cb90de8 7353 card->options.large_send = type;
1da177e4
LT		 7354 switch (card->options.large_send) {
7355 case QETH_LARGE_SEND_EDDP:
7356 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7357 break;
7358 case QETH_LARGE_SEND_TSO:
7359 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7360 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7361 } else {
7362 PRINT_WARN("TSO not supported on %s. "
7363 "large_send set to 'no'.\n",
7364 card->dev->name);
7365 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7366 card->options.large_send = QETH_LARGE_SEND_NO;
7367 rc = -EOPNOTSUPP;
7368 }
7369 break;
7370 default: /* includes QETH_LARGE_SEND_NO */
7371 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7372 break;
7373 }
b85e1fa1
UB		 7374 if (card->state == CARD_STATE_UP)
7375 netif_wake_queue(card->dev);
1da177e4
LT		 7376 return rc;
7377}
7378
7379/*
7380 * softsetup card: init IPA stuff
7381 */
7382static int
7383qeth_softsetup_card(struct qeth_card *card)
7384{
7385 int rc;
7386
7387 QETH_DBF_TEXT(setup, 2, "softsetp");
7388
7389 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7390 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7391 if (rc == 0xe080){
7392 PRINT_WARN("LAN on card %s if offline! "
7393 "Continuing softsetup.\n",
7394 CARD_BUS_ID(card));
7395 card->lan_online = 0;
7396 } else
7397 return rc;
7398 } else
7399 card->lan_online = 1;
500f83ab
UB		 7400 if (card->info.type==QETH_CARD_TYPE_OSN)
7401 goto out;
66cc5d5a 7402 qeth_set_large_send(card, card->options.large_send);
1da177e4
LT		 7403 if (card->options.layer2) {
7404 card->dev->features |=
7405 NETIF_F_HW_VLAN_FILTER |
7406 NETIF_F_HW_VLAN_TX |
7407 NETIF_F_HW_VLAN_RX;
7408 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7409 card->info.broadcast_capable=1;
7410 if ((rc = qeth_layer2_initialize(card))) {
7411 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7412 return rc;
7413 }
7414#ifdef CONFIG_QETH_VLAN
7415 qeth_layer2_process_vlans(card, 0);
7416#endif
7417 goto out;
7418 }
1da177e4
LT		 7419 if ((rc = qeth_setadapter_parms(card)))
7420 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7421 if ((rc = qeth_start_ipassists(card)))
7422 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7423 if ((rc = qeth_setrouting_v4(card)))
7424 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7425 if ((rc = qeth_setrouting_v6(card)))
7426 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7427out:
b85e1fa1 7428 netif_tx_disable(card->dev);
1da177e4
LT		 7429 return 0;
7430}
7431
7432#ifdef CONFIG_QETH_IPV6
7433static int
7434qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7435 unsigned long data)
7436{
7437 struct qeth_ipa_cmd *cmd;
7438
7439 cmd = (struct qeth_ipa_cmd *) data;
7440 if (cmd->hdr.return_code == 0)
7441 card->info.unique_id = *((__u16 *)
7442 &cmd->data.create_destroy_addr.unique_id[6]);
7443 else {
7444 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7445 UNIQUE_ID_NOT_BY_CARD;
7446 PRINT_WARN("couldn't get a unique id from the card on device "
7447 "%s (result=x%x), using default id. ipv6 "
7448 "autoconfig on other lpars may lead to duplicate "
7449 "ip addresses. please use manually "
7450 "configured ones.\n",
7451 CARD_BUS_ID(card), cmd->hdr.return_code);
7452 }
7453 return 0;
7454}
7455#endif
7456
7457static int
7458qeth_put_unique_id(struct qeth_card *card)
7459{
7460
7461 int rc = 0;
7462#ifdef CONFIG_QETH_IPV6
7463 struct qeth_cmd_buffer *iob;
7464 struct qeth_ipa_cmd *cmd;
7465
7466 QETH_DBF_TEXT(trace,2,"puniqeid");
7467
7468 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7469 UNIQUE_ID_NOT_BY_CARD)
7470 return -1;
7471 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7472 QETH_PROT_IPV6);
7473 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7474 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7475 card->info.unique_id;
7476 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7477 card->dev->dev_addr, OSA_ADDR_LEN);
7478 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7479#else
7480 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7481 UNIQUE_ID_NOT_BY_CARD;
7482#endif
7483 return rc;
7484}
7485
7486/**
7487 * Clear IP List
7488 */
7489static void
7490qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7491{
7492 struct qeth_ipaddr *addr, *tmp;
7493 unsigned long flags;
7494
7495 QETH_DBF_TEXT(trace,4,"clearip");
7496 spin_lock_irqsave(&card->ip_lock, flags);
7497 /* clear todo list */
7498 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7499 list_del(&addr->entry);
7500 kfree(addr);
7501 }
7502
7503 while (!list_empty(&card->ip_list)) {
7504 addr = list_entry(card->ip_list.next,
7505 struct qeth_ipaddr, entry);
7506 list_del_init(&addr->entry);
7507 if (clean) {
7508 spin_unlock_irqrestore(&card->ip_lock, flags);
7509 qeth_deregister_addr_entry(card, addr);
7510 spin_lock_irqsave(&card->ip_lock, flags);
7511 }
7512 if (!recover || addr->is_multicast) {
7513 kfree(addr);
7514 continue;
7515 }
7516 list_add_tail(&addr->entry, card->ip_tbd_list);
7517 }
7518 spin_unlock_irqrestore(&card->ip_lock, flags);
7519}
7520
7521static void
7522qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7523 int clear_start_mask)
7524{
7525 unsigned long flags;
7526
7527 spin_lock_irqsave(&card->thread_mask_lock, flags);
7528 card->thread_allowed_mask = threads;
7529 if (clear_start_mask)
7530 card->thread_start_mask &= threads;
7531 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7532 wake_up(&card->wait_q);
7533}
7534
4d284cac 7535static int
1da177e4
LT		 7536qeth_threads_running(struct qeth_card *card, unsigned long threads)
7537{
7538 unsigned long flags;
7539 int rc = 0;
7540
7541 spin_lock_irqsave(&card->thread_mask_lock, flags);
7542 rc = (card->thread_running_mask & threads);
7543 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7544 return rc;
7545}
7546
7547static int
7548qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7549{
7550 return wait_event_interruptible(card->wait_q,
7551 qeth_threads_running(card, threads) == 0);
7552}
7553
7554static int
05e08a2a 7555qeth_stop_card(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7556{
7557 int rc = 0;
7558
7559 QETH_DBF_TEXT(setup ,2,"stopcard");
7560 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7561
7562 qeth_set_allowed_threads(card, 0, 1);
7563 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7564 return -ERESTARTSYS;
7565 if (card->read.state == CH_STATE_UP &&
7566 card->write.state == CH_STATE_UP &&
7567 (card->state == CARD_STATE_UP)) {
e82b0f2c 7568 if (recovery_mode &&
500f83ab 7569 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7570 qeth_stop(card->dev);
7571 } else {
7572 rtnl_lock();
7573 dev_close(card->dev);
7574 rtnl_unlock();
7575 }
1da177e4
LT		 7576 if (!card->use_hard_stop) {
7577 __u8 *mac = &card->dev->dev_addr[0];
7578 rc = qeth_layer2_send_delmac(card, mac);
7579 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7580 if ((rc = qeth_send_stoplan(card)))
7581 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7582 }
7583 card->state = CARD_STATE_SOFTSETUP;
7584 }
7585 if (card->state == CARD_STATE_SOFTSETUP) {
7586#ifdef CONFIG_QETH_VLAN
7587 if (card->options.layer2)
7588 qeth_layer2_process_vlans(card, 1);
7589#endif
7590 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7591 qeth_clear_ipacmd_list(card);
7592 card->state = CARD_STATE_HARDSETUP;
7593 }
7594 if (card->state == CARD_STATE_HARDSETUP) {
7595 if ((!card->use_hard_stop) &&
7596 (!card->options.layer2))
7597 if ((rc = qeth_put_unique_id(card)))
7598 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7599 qeth_qdio_clear_card(card, 0);
7600 qeth_clear_qdio_buffers(card);
7601 qeth_clear_working_pool_list(card);
7602 card->state = CARD_STATE_DOWN;
7603 }
7604 if (card->state == CARD_STATE_DOWN) {
7605 qeth_clear_cmd_buffers(&card->read);
7606 qeth_clear_cmd_buffers(&card->write);
7607 }
7608 card->use_hard_stop = 0;
7609 return rc;
7610}
7611
7612
7613static int
7614qeth_get_unique_id(struct qeth_card *card)
7615{
7616 int rc = 0;
7617#ifdef CONFIG_QETH_IPV6
7618 struct qeth_cmd_buffer *iob;
7619 struct qeth_ipa_cmd *cmd;
7620
7621 QETH_DBF_TEXT(setup, 2, "guniqeid");
7622
7623 if (!qeth_is_supported(card,IPA_IPV6)) {
7624 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7625 UNIQUE_ID_NOT_BY_CARD;
7626 return 0;
7627 }
7628
7629 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7630 QETH_PROT_IPV6);
7631 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7632 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7633 card->info.unique_id;
7634
7635 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7636#else
7637 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7638 UNIQUE_ID_NOT_BY_CARD;
7639#endif
7640 return rc;
7641}
7642static void
7643qeth_print_status_with_portname(struct qeth_card *card)
7644{
7645 char dbf_text[15];
7646 int i;
7647
7648 sprintf(dbf_text, "%s", card->info.portname + 1);
7649 for (i = 0; i < 8; i++)
7650 dbf_text[i] =
7651 (char) _ebcasc[(__u8) dbf_text[i]];
7652 dbf_text[8] = 0;
7653 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7654 "with link type %s (portname: %s)\n",
7655 CARD_RDEV_ID(card),
7656 CARD_WDEV_ID(card),
7657 CARD_DDEV_ID(card),
7658 qeth_get_cardname(card),
7659 (card->info.mcl_level[0]) ? " (level: " : "",
7660 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7661 (card->info.mcl_level[0]) ? ")" : "",
7662 qeth_get_cardname_short(card),
7663 dbf_text);
7664
7665}
7666
7667static void
7668qeth_print_status_no_portname(struct qeth_card *card)
7669{
7670 if (card->info.portname[0])
7671 printk("qeth: Device %s/%s/%s is a%s "
7672 "card%s%s%s\nwith link type %s "
7673 "(no portname needed by interface).\n",
7674 CARD_RDEV_ID(card),
7675 CARD_WDEV_ID(card),
7676 CARD_DDEV_ID(card),
7677 qeth_get_cardname(card),
7678 (card->info.mcl_level[0]) ? " (level: " : "",
7679 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7680 (card->info.mcl_level[0]) ? ")" : "",
7681 qeth_get_cardname_short(card));
7682 else
7683 printk("qeth: Device %s/%s/%s is a%s "
7684 "card%s%s%s\nwith link type %s.\n",
7685 CARD_RDEV_ID(card),
7686 CARD_WDEV_ID(card),
7687 CARD_DDEV_ID(card),
7688 qeth_get_cardname(card),
7689 (card->info.mcl_level[0]) ? " (level: " : "",
7690 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7691 (card->info.mcl_level[0]) ? ")" : "",
7692 qeth_get_cardname_short(card));
7693}
7694
7695static void
7696qeth_print_status_message(struct qeth_card *card)
7697{
7698 switch (card->info.type) {
7699 case QETH_CARD_TYPE_OSAE:
7700 /* VM will use a non-zero first character
7701 * to indicate a HiperSockets like reporting
7702 * of the level OSA sets the first character to zero
7703 * */
7704 if (!card->info.mcl_level[0]) {
7705 sprintf(card->info.mcl_level,"%02x%02x",
7706 card->info.mcl_level[2],
7707 card->info.mcl_level[3]);
7708
7709 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7710 break;
7711 }
7712 /* fallthrough */
7713 case QETH_CARD_TYPE_IQD:
7714 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7715 card->info.mcl_level[0]];
7716 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7717 card->info.mcl_level[1]];
7718 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7719 card->info.mcl_level[2]];
7720 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7721 card->info.mcl_level[3]];
7722 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7723 break;
7724 default:
7725 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7726 }
7727 if (card->info.portname_required)
7728 qeth_print_status_with_portname(card);
7729 else
7730 qeth_print_status_no_portname(card);
7731}
7732
7733static int
7734qeth_register_netdev(struct qeth_card *card)
7735{
7736 QETH_DBF_TEXT(setup, 3, "regnetd");
e82b0f2c 7737 if (card->dev->reg_state != NETREG_UNINITIALIZED)
1da177e4 7738 return 0;
1da177e4
LT		 7739 /* sysfs magic */
7740 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7741 return register_netdev(card->dev);
7742}
7743
7744static void
05e08a2a 7745qeth_start_again(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7746{
7747 QETH_DBF_TEXT(setup ,2, "startag");
7748
e82b0f2c 7749 if (recovery_mode &&
500f83ab 7750 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7751 qeth_open(card->dev);
7752 } else {
7753 rtnl_lock();
7754 dev_open(card->dev);
7755 rtnl_unlock();
7756 }
1da177e4
LT		 7757 /* this also sets saved unicast addresses */
7758 qeth_set_multicast_list(card->dev);
7759}
7760
7761
7762/* Layer 2 specific stuff */
7763#define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7764 if (card->options.option == value) { \
7765 PRINT_ERR("%s not supported with layer 2 " \
7766 "functionality, ignoring option on read" \
7767 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7768 card->options.option = reset_value; \
7769 }
7770#define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7771 if (card->options.option != value) { \
7772 PRINT_ERR("%s not supported with layer 2 " \
7773 "functionality, ignoring option on read" \
7774 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7775 card->options.option = reset_value; \
7776 }
7777
7778
7779static void qeth_make_parameters_consistent(struct qeth_card *card)
7780{
7781
500f83ab
UB		 7782 if (card->options.layer2 == 0)
7783 return;
7784 if (card->info.type == QETH_CARD_TYPE_OSN)
7785 return;
7786 if (card->info.type == QETH_CARD_TYPE_IQD) {
7787 PRINT_ERR("Device %s does not support layer 2 functionality." \
7788 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7789 card->options.layer2 = 0;
7790 return;
7791 }
7792 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7793 "Routing options are");
1da177e4 7794#ifdef CONFIG_QETH_IPV6
500f83ab
UB		 7795 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7796 "Routing options are");
1da177e4 7797#endif
500f83ab
UB		 7798 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7799 QETH_CHECKSUM_DEFAULT,
7800 "Checksumming options are");
7801 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7802 QETH_TR_BROADCAST_ALLRINGS,
7803 "Broadcast mode options are");
7804 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7805 QETH_TR_MACADDR_NONCANONICAL,
7806 "Canonical MAC addr options are");
7807 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7808 "Broadcast faking options are");
7809 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7810 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7811 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
1da177e4
LT		 7812}
7813
7814
7815static int
05e08a2a 7816__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1da177e4
LT		 7817{
7818 struct qeth_card *card = gdev->dev.driver_data;
7819 int rc = 0;
7820 enum qeth_card_states recover_flag;
7821
7822 BUG_ON(!card);
7823 QETH_DBF_TEXT(setup ,2, "setonlin");
7824 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7825
7826 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7827 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7828 PRINT_WARN("set_online of card %s interrupted by user!\n",
7829 CARD_BUS_ID(card));
7830 return -ERESTARTSYS;
7831 }
7832
7833 recover_flag = card->state;
7834 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7835 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7836 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7837 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7838 return -EIO;
7839 }
7840
500f83ab 7841 qeth_make_parameters_consistent(card);
1da177e4
LT		 7842
7843 if ((rc = qeth_hardsetup_card(card))){
7844 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7845 goto out_remove;
7846 }
7847 card->state = CARD_STATE_HARDSETUP;
7848
7849 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7850 rc = qeth_get_unique_id(card);
7851
7852 if (rc && card->options.layer2 == 0) {
7853 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7854 goto out_remove;
7855 }
7856 qeth_print_status_message(card);
7857 if ((rc = qeth_register_netdev(card))){
7858 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7859 goto out_remove;
7860 }
7861 if ((rc = qeth_softsetup_card(card))){
7862 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7863 goto out_remove;
7864 }
1da177e4
LT		 7865
7866 if ((rc = qeth_init_qdio_queues(card))){
7867 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7868 goto out_remove;
7869 }
09d2d38a 7870 card->state = CARD_STATE_SOFTSETUP;
4965e97f
FP		 7871 netif_carrier_on(card->dev);
7872
1da177e4
LT		 7873 qeth_set_allowed_threads(card, 0xffffffff, 0);
7874 if (recover_flag == CARD_STATE_RECOVER)
05e08a2a 7875 qeth_start_again(card, recovery_mode);
1da177e4
LT		 7876 qeth_notify_processes();
7877 return 0;
7878out_remove:
7879 card->use_hard_stop = 1;
05e08a2a 7880 qeth_stop_card(card, 0);
1da177e4
LT		 7881 ccw_device_set_offline(CARD_DDEV(card));
7882 ccw_device_set_offline(CARD_WDEV(card));
7883 ccw_device_set_offline(CARD_RDEV(card));
7884 if (recover_flag == CARD_STATE_RECOVER)
7885 card->state = CARD_STATE_RECOVER;
7886 else
7887 card->state = CARD_STATE_DOWN;
7888 return -ENODEV;
7889}
7890
05e08a2a
FP		 7891static int
7892qeth_set_online(struct ccwgroup_device *gdev)
7893{
7894 return __qeth_set_online(gdev, 0);
7895}
7896
1da177e4 7897static struct ccw_device_id qeth_ids[] = {
d2c993d8
HC		 7898 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7899 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7900 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
1da177e4
LT		 7901 {},
7902};
7903MODULE_DEVICE_TABLE(ccw, qeth_ids);
7904
7905struct device *qeth_root_dev = NULL;
7906
7907struct ccwgroup_driver qeth_ccwgroup_driver = {
7908 .owner = THIS_MODULE,
7909 .name = "qeth",
7910 .driver_id = 0xD8C5E3C8,
7911 .probe = qeth_probe_device,
7912 .remove = qeth_remove_device,
7913 .set_online = qeth_set_online,
7914 .set_offline = qeth_set_offline,
7915};
7916
7917struct ccw_driver qeth_ccw_driver = {
7918 .name = "qeth",
7919 .ids = qeth_ids,
7920 .probe = ccwgroup_probe_ccwdev,
7921 .remove = ccwgroup_remove_ccwdev,
7922};
7923
7924
7925static void
7926qeth_unregister_dbf_views(void)
7927{
7928 if (qeth_dbf_setup)
7929 debug_unregister(qeth_dbf_setup);
7930 if (qeth_dbf_qerr)
7931 debug_unregister(qeth_dbf_qerr);
7932 if (qeth_dbf_sense)
7933 debug_unregister(qeth_dbf_sense);
7934 if (qeth_dbf_misc)
7935 debug_unregister(qeth_dbf_misc);
7936 if (qeth_dbf_data)
7937 debug_unregister(qeth_dbf_data);
7938 if (qeth_dbf_control)
7939 debug_unregister(qeth_dbf_control);
7940 if (qeth_dbf_trace)
7941 debug_unregister(qeth_dbf_trace);
7942}
7943static int
7944qeth_register_dbf_views(void)
7945{
7946 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
66a464db 7947 QETH_DBF_SETUP_PAGES,
1da177e4
LT		 7948 QETH_DBF_SETUP_NR_AREAS,
7949 QETH_DBF_SETUP_LEN);
7950 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
66a464db 7951 QETH_DBF_MISC_PAGES,
1da177e4
LT		 7952 QETH_DBF_MISC_NR_AREAS,
7953 QETH_DBF_MISC_LEN);
7954 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
66a464db 7955 QETH_DBF_DATA_PAGES,
1da177e4
LT		 7956 QETH_DBF_DATA_NR_AREAS,
7957 QETH_DBF_DATA_LEN);
7958 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
66a464db 7959 QETH_DBF_CONTROL_PAGES,
1da177e4
LT		 7960 QETH_DBF_CONTROL_NR_AREAS,
7961 QETH_DBF_CONTROL_LEN);
7962 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
66a464db 7963 QETH_DBF_SENSE_PAGES,
1da177e4
LT		 7964 QETH_DBF_SENSE_NR_AREAS,
7965 QETH_DBF_SENSE_LEN);
7966 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
66a464db 7967 QETH_DBF_QERR_PAGES,
1da177e4
LT		 7968 QETH_DBF_QERR_NR_AREAS,
7969 QETH_DBF_QERR_LEN);
7970 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
66a464db 7971 QETH_DBF_TRACE_PAGES,
1da177e4
LT		 7972 QETH_DBF_TRACE_NR_AREAS,
7973 QETH_DBF_TRACE_LEN);
7974
7975 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
7976 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
7977 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
7978 (qeth_dbf_trace == NULL)) {
7979 qeth_unregister_dbf_views();
7980 return -ENOMEM;
7981 }
7982 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7983 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7984
7985 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7986 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7987
7988 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7989 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7990
7991 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7992 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7993
7994 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
7995 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
7996
7997 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
7998 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
7999
8000 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8001 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8002
8003 return 0;
8004}
8005
8006#ifdef CONFIG_QETH_IPV6
8007extern struct neigh_table arp_tbl;
8008static struct neigh_ops *arp_direct_ops;
8009static int (*qeth_old_arp_constructor) (struct neighbour *);
8010
8011static struct neigh_ops arp_direct_ops_template = {
8012 .family = AF_INET,
1da177e4
LT		 8013 .solicit = NULL,
8014 .error_report = NULL,
8015 .output = dev_queue_xmit,
8016 .connected_output = dev_queue_xmit,
8017 .hh_output = dev_queue_xmit,
8018 .queue_xmit = dev_queue_xmit
8019};
8020
8021static int
8022qeth_arp_constructor(struct neighbour *neigh)
8023{
8024 struct net_device *dev = neigh->dev;
8025 struct in_device *in_dev;
8026 struct neigh_parms *parms;
8027 struct qeth_card *card;
8028
8029 card = qeth_get_card_from_dev(dev);
8030 if (card == NULL)
8031 goto out;
8032 if((card->options.layer2) ||
8033 (card->dev->hard_header == qeth_fake_header))
8034 goto out;
8035
8036 rcu_read_lock();
e5ed6399 8037 in_dev = __in_dev_get_rcu(dev);
1da177e4
LT		 8038 if (in_dev == NULL) {
8039 rcu_read_unlock();
8040 return -EINVAL;
8041 }
8042
8043 parms = in_dev->arp_parms;
8044 __neigh_parms_put(neigh->parms);
8045 neigh->parms = neigh_parms_clone(parms);
8046 rcu_read_unlock();
8047
fd683222 8048 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
1da177e4
LT		 8049 neigh->nud_state = NUD_NOARP;
8050 neigh->ops = arp_direct_ops;
8051 neigh->output = neigh->ops->queue_xmit;
8052 return 0;
8053out:
8054 return qeth_old_arp_constructor(neigh);
8055}
8056#endif /*CONFIG_QETH_IPV6*/
8057
8058/*
8059 * IP address takeover related functions
8060 */
8061static void
8062qeth_clear_ipato_list(struct qeth_card *card)
8063{
8064 struct qeth_ipato_entry *ipatoe, *tmp;
8065 unsigned long flags;
8066
8067 spin_lock_irqsave(&card->ip_lock, flags);
8068 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8069 list_del(&ipatoe->entry);
8070 kfree(ipatoe);
8071 }
8072 spin_unlock_irqrestore(&card->ip_lock, flags);
8073}
8074
8075int
8076qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8077{
8078 struct qeth_ipato_entry *ipatoe;
8079 unsigned long flags;
8080 int rc = 0;
8081
8082 QETH_DBF_TEXT(trace, 2, "addipato");
8083 spin_lock_irqsave(&card->ip_lock, flags);
8084 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8085 if (ipatoe->proto != new->proto)
8086 continue;
8087 if (!memcmp(ipatoe->addr, new->addr,
8088 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8089 (ipatoe->mask_bits == new->mask_bits)){
8090 PRINT_WARN("ipato entry already exists!\n");
8091 rc = -EEXIST;
8092 break;
8093 }
8094 }
8095 if (!rc) {
8096 list_add_tail(&new->entry, &card->ipato.entries);
8097 }
8098 spin_unlock_irqrestore(&card->ip_lock, flags);
8099 return rc;
8100}
8101
8102void
8103qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8104 u8 *addr, int mask_bits)
8105{
8106 struct qeth_ipato_entry *ipatoe, *tmp;
8107 unsigned long flags;
8108
8109 QETH_DBF_TEXT(trace, 2, "delipato");
8110 spin_lock_irqsave(&card->ip_lock, flags);
8111 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8112 if (ipatoe->proto != proto)
8113 continue;
8114 if (!memcmp(ipatoe->addr, addr,
8115 (proto == QETH_PROT_IPV4)? 4:16) &&
8116 (ipatoe->mask_bits == mask_bits)){
8117 list_del(&ipatoe->entry);
8118 kfree(ipatoe);
8119 }
8120 }
8121 spin_unlock_irqrestore(&card->ip_lock, flags);
8122}
8123
4d284cac 8124static void
1da177e4
LT		 8125qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8126{
8127 int i, j;
8128 u8 octet;
8129
8130 for (i = 0; i < len; ++i){
8131 octet = addr[i];
8132 for (j = 7; j >= 0; --j){
8133 bits[i*8 + j] = octet & 1;
8134 octet >>= 1;
8135 }
8136 }
8137}
8138
8139static int
8140qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8141{
8142 struct qeth_ipato_entry *ipatoe;
8143 u8 addr_bits[128] = {0, };
8144 u8 ipatoe_bits[128] = {0, };
8145 int rc = 0;
8146
8147 if (!card->ipato.enabled)
8148 return 0;
8149
8150 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8151 (addr->proto == QETH_PROT_IPV4)? 4:16);
8152 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8153 if (addr->proto != ipatoe->proto)
8154 continue;
8155 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8156 (ipatoe->proto==QETH_PROT_IPV4) ?
8157 4:16);
8158 if (addr->proto == QETH_PROT_IPV4)
8159 rc = !memcmp(addr_bits, ipatoe_bits,
8160 min(32, ipatoe->mask_bits));
8161 else
8162 rc = !memcmp(addr_bits, ipatoe_bits,
8163 min(128, ipatoe->mask_bits));
8164 if (rc)
8165 break;
8166 }
8167 /* invert? */
8168 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8169 rc = !rc;
8170 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8171 rc = !rc;
8172
8173 return rc;
8174}
8175
8176/*
8177 * VIPA related functions
8178 */
8179int
8180qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8181 const u8 *addr)
8182{
8183 struct qeth_ipaddr *ipaddr;
8184 unsigned long flags;
8185 int rc = 0;
8186
8187 ipaddr = qeth_get_addr_buffer(proto);
8188 if (ipaddr){
8189 if (proto == QETH_PROT_IPV4){
8190 QETH_DBF_TEXT(trace, 2, "addvipa4");
8191 memcpy(&ipaddr->u.a4.addr, addr, 4);
8192 ipaddr->u.a4.mask = 0;
8193#ifdef CONFIG_QETH_IPV6
8194 } else if (proto == QETH_PROT_IPV6){
8195 QETH_DBF_TEXT(trace, 2, "addvipa6");
8196 memcpy(&ipaddr->u.a6.addr, addr, 16);
8197 ipaddr->u.a6.pfxlen = 0;
8198#endif
8199 }
8200 ipaddr->type = QETH_IP_TYPE_VIPA;
8201 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8202 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8203 } else
8204 return -ENOMEM;
8205 spin_lock_irqsave(&card->ip_lock, flags);
8206 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8207 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8208 rc = -EEXIST;
8209 spin_unlock_irqrestore(&card->ip_lock, flags);
8210 if (rc){
8211 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8212 return rc;
8213 }
8214 if (!qeth_add_ip(card, ipaddr))
8215 kfree(ipaddr);
ee2db684 8216 qeth_set_ip_addr_list(card);
1da177e4
LT		 8217 return rc;
8218}
8219
8220void
8221qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8222 const u8 *addr)
8223{
8224 struct qeth_ipaddr *ipaddr;
8225
8226 ipaddr = qeth_get_addr_buffer(proto);
8227 if (ipaddr){
8228 if (proto == QETH_PROT_IPV4){
8229 QETH_DBF_TEXT(trace, 2, "delvipa4");
8230 memcpy(&ipaddr->u.a4.addr, addr, 4);
8231 ipaddr->u.a4.mask = 0;
8232#ifdef CONFIG_QETH_IPV6
8233 } else if (proto == QETH_PROT_IPV6){
8234 QETH_DBF_TEXT(trace, 2, "delvipa6");
8235 memcpy(&ipaddr->u.a6.addr, addr, 16);
8236 ipaddr->u.a6.pfxlen = 0;
8237#endif
8238 }
8239 ipaddr->type = QETH_IP_TYPE_VIPA;
8240 } else
8241 return;
8242 if (!qeth_delete_ip(card, ipaddr))
8243 kfree(ipaddr);
ee2db684 8244 qeth_set_ip_addr_list(card);
1da177e4
LT		 8245}
8246
8247/*
8248 * proxy ARP related functions
8249 */
8250int
8251qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8252 const u8 *addr)
8253{
8254 struct qeth_ipaddr *ipaddr;
8255 unsigned long flags;
8256 int rc = 0;
8257
8258 ipaddr = qeth_get_addr_buffer(proto);
8259 if (ipaddr){
8260 if (proto == QETH_PROT_IPV4){
8261 QETH_DBF_TEXT(trace, 2, "addrxip4");
8262 memcpy(&ipaddr->u.a4.addr, addr, 4);
8263 ipaddr->u.a4.mask = 0;
8264#ifdef CONFIG_QETH_IPV6
8265 } else if (proto == QETH_PROT_IPV6){
8266 QETH_DBF_TEXT(trace, 2, "addrxip6");
8267 memcpy(&ipaddr->u.a6.addr, addr, 16);
8268 ipaddr->u.a6.pfxlen = 0;
8269#endif
8270 }
8271 ipaddr->type = QETH_IP_TYPE_RXIP;
8272 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8273 ipaddr->del_flags = 0;
8274 } else
8275 return -ENOMEM;
8276 spin_lock_irqsave(&card->ip_lock, flags);
8277 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8278 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8279 rc = -EEXIST;
8280 spin_unlock_irqrestore(&card->ip_lock, flags);
8281 if (rc){
8282 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8283 return rc;
8284 }
8285 if (!qeth_add_ip(card, ipaddr))
8286 kfree(ipaddr);
ee2db684 8287 qeth_set_ip_addr_list(card);
1da177e4
LT		 8288 return 0;
8289}
8290
8291void
8292qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8293 const u8 *addr)
8294{
8295 struct qeth_ipaddr *ipaddr;
8296
8297 ipaddr = qeth_get_addr_buffer(proto);
8298 if (ipaddr){
8299 if (proto == QETH_PROT_IPV4){
8300 QETH_DBF_TEXT(trace, 2, "addrxip4");
8301 memcpy(&ipaddr->u.a4.addr, addr, 4);
8302 ipaddr->u.a4.mask = 0;
8303#ifdef CONFIG_QETH_IPV6
8304 } else if (proto == QETH_PROT_IPV6){
8305 QETH_DBF_TEXT(trace, 2, "addrxip6");
8306 memcpy(&ipaddr->u.a6.addr, addr, 16);
8307 ipaddr->u.a6.pfxlen = 0;
8308#endif
8309 }
8310 ipaddr->type = QETH_IP_TYPE_RXIP;
8311 } else
8312 return;
8313 if (!qeth_delete_ip(card, ipaddr))
8314 kfree(ipaddr);
ee2db684 8315 qeth_set_ip_addr_list(card);
1da177e4
LT		 8316}
8317
8318/**
8319 * IP event handler
8320 */
8321static int
8322qeth_ip_event(struct notifier_block *this,
8323 unsigned long event,void *ptr)
8324{
8325 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8326 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8327 struct qeth_ipaddr *addr;
8328 struct qeth_card *card;
8329
8330 QETH_DBF_TEXT(trace,3,"ipevent");
8331 card = qeth_get_card_from_dev(dev);
8332 if (!card)
8333 return NOTIFY_DONE;
8334 if (card->options.layer2)
8335 return NOTIFY_DONE;
8336
8337 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8338 if (addr != NULL) {
8339 addr->u.a4.addr = ifa->ifa_address;
8340 addr->u.a4.mask = ifa->ifa_mask;
8341 addr->type = QETH_IP_TYPE_NORMAL;
8342 } else
8343 goto out;
8344
8345 switch(event) {
8346 case NETDEV_UP:
8347 if (!qeth_add_ip(card, addr))
8348 kfree(addr);
8349 break;
8350 case NETDEV_DOWN:
8351 if (!qeth_delete_ip(card, addr))
8352 kfree(addr);
8353 break;
8354 default:
8355 break;
8356 }
ee2db684 8357 qeth_set_ip_addr_list(card);
1da177e4
LT		 8358out:
8359 return NOTIFY_DONE;
8360}
8361
8362static struct notifier_block qeth_ip_notifier = {
8363 qeth_ip_event,
d2c993d8 8364 NULL,
1da177e4
LT		 8365};
8366
8367#ifdef CONFIG_QETH_IPV6
8368/**
8369 * IPv6 event handler
8370 */
8371static int
8372qeth_ip6_event(struct notifier_block *this,
8373 unsigned long event,void *ptr)
8374{
8375
8376 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8377 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8378 struct qeth_ipaddr *addr;
8379 struct qeth_card *card;
8380
8381 QETH_DBF_TEXT(trace,3,"ip6event");
8382
8383 card = qeth_get_card_from_dev(dev);
8384 if (!card)
8385 return NOTIFY_DONE;
8386 if (!qeth_is_supported(card, IPA_IPV6))
8387 return NOTIFY_DONE;
8388
8389 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8390 if (addr != NULL) {
8391 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8392 addr->u.a6.pfxlen = ifa->prefix_len;
8393 addr->type = QETH_IP_TYPE_NORMAL;
8394 } else
8395 goto out;
8396
8397 switch(event) {
8398 case NETDEV_UP:
8399 if (!qeth_add_ip(card, addr))
8400 kfree(addr);
8401 break;
8402 case NETDEV_DOWN:
8403 if (!qeth_delete_ip(card, addr))
8404 kfree(addr);
8405 break;
8406 default:
8407 break;
8408 }
ee2db684 8409 qeth_set_ip_addr_list(card);
1da177e4
LT		 8410out:
8411 return NOTIFY_DONE;
8412}
8413
8414static struct notifier_block qeth_ip6_notifier = {
8415 qeth_ip6_event,
d2c993d8 8416 NULL,
1da177e4
LT		 8417};
8418#endif
8419
8420static int
66aea23f 8421__qeth_reboot_event_card(struct device *dev, void *data)
1da177e4 8422{
1da177e4
LT		 8423 struct qeth_card *card;
8424
66aea23f
CH		 8425 card = (struct qeth_card *) dev->driver_data;
8426 qeth_clear_ip_list(card, 0, 0);
8427 qeth_qdio_clear_card(card, 0);
8428 return 0;
8429}
8430
8431static int
8432qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8433{
d7cf0d57 8434 int ret;
66aea23f 8435
d7cf0d57
HC		 8436 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8437 __qeth_reboot_event_card);
8438 return ret ? NOTIFY_BAD : NOTIFY_DONE;
1da177e4
LT		 8439}
8440
8441
8442static struct notifier_block qeth_reboot_notifier = {
8443 qeth_reboot_event,
d2c993d8 8444 NULL,
1da177e4
LT		 8445};
8446
8447static int
8448qeth_register_notifiers(void)
8449{
8450 int r;
8451
8452 QETH_DBF_TEXT(trace,5,"regnotif");
8453 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8454 return r;
8455 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8456 goto out_reboot;
8457#ifdef CONFIG_QETH_IPV6
8458 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8459 goto out_ipv4;
8460#endif
8461 return 0;
8462
8463#ifdef CONFIG_QETH_IPV6
8464out_ipv4:
8465 unregister_inetaddr_notifier(&qeth_ip_notifier);
8466#endif
8467out_reboot:
8468 unregister_reboot_notifier(&qeth_reboot_notifier);
8469 return r;
8470}
8471
8472/**
8473 * unregister all event notifiers
8474 */
8475static void
8476qeth_unregister_notifiers(void)
8477{
8478
8479 QETH_DBF_TEXT(trace,5,"unregnot");
8480 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8481 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8482#ifdef CONFIG_QETH_IPV6
8483 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8484#endif /* QETH_IPV6 */
8485
8486}
8487
8488#ifdef CONFIG_QETH_IPV6
8489static int
8490qeth_ipv6_init(void)
8491{
8492 qeth_old_arp_constructor = arp_tbl.constructor;
3d8f3f3c 8493 write_lock_bh(&arp_tbl.lock);
1da177e4 8494 arp_tbl.constructor = qeth_arp_constructor;
3d8f3f3c 8495 write_unlock_bh(&arp_tbl.lock);
1da177e4
LT		 8496
8497 arp_direct_ops = (struct neigh_ops*)
8498 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8499 if (!arp_direct_ops)
8500 return -ENOMEM;
8501
8502 memcpy(arp_direct_ops, &arp_direct_ops_template,
8503 sizeof(struct neigh_ops));
8504
8505 return 0;
8506}
8507
8508static void
8509qeth_ipv6_uninit(void)
8510{
3d8f3f3c 8511 write_lock_bh(&arp_tbl.lock);
1da177e4 8512 arp_tbl.constructor = qeth_old_arp_constructor;
3d8f3f3c 8513 write_unlock_bh(&arp_tbl.lock);
1da177e4
LT		 8514 kfree(arp_direct_ops);
8515}
8516#endif /* CONFIG_QETH_IPV6 */
8517
8518static void
8519qeth_sysfs_unregister(void)
8520{
8b98a37c 8521 s390_root_dev_unregister(qeth_root_dev);
1da177e4
LT		 8522 qeth_remove_driver_attributes();
8523 ccw_driver_unregister(&qeth_ccw_driver);
8524 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
1da177e4 8525}
8b98a37c 8526
1da177e4
LT		 8527/**
8528 * register qeth at sysfs
8529 */
8530static int
8531qeth_sysfs_register(void)
8532{
8b98a37c 8533 int rc;
1da177e4
LT		 8534
8535 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8536 if (rc)
8b98a37c
FP		 8537 goto out;
8538
1da177e4
LT		 8539 rc = ccw_driver_register(&qeth_ccw_driver);
8540 if (rc)
8b98a37c
FP		 8541 goto out_ccw_driver;
8542
1da177e4
LT		 8543 rc = qeth_create_driver_attributes();
8544 if (rc)
8b98a37c
FP		 8545 goto out_qeth_attr;
8546
1da177e4 8547 qeth_root_dev = s390_root_dev_register("qeth");
8b98a37c
FP		 8548 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8549 if (!rc)
8550 goto out;
8551
8552 qeth_remove_driver_attributes();
8553out_qeth_attr:
8554 ccw_driver_unregister(&qeth_ccw_driver);
8555out_ccw_driver:
8556 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8557out:
8558 return rc;
1da177e4
LT		 8559}
8560
8561/***
8562 * init function
8563 */
8564static int __init
8565qeth_init(void)
8566{
8b98a37c 8567 int rc;
1da177e4 8568
e018ba1f 8569 PRINT_INFO("loading %s\n", version);
1da177e4
LT		 8570
8571 INIT_LIST_HEAD(&qeth_card_list.list);
8572 INIT_LIST_HEAD(&qeth_notify_list);
8573 spin_lock_init(&qeth_notify_lock);
8574 rwlock_init(&qeth_card_list.rwlock);
8575
8b98a37c
FP		 8576 rc = qeth_register_dbf_views();
8577 if (rc)
1da177e4 8578 goto out_err;
8b98a37c
FP		 8579
8580 rc = qeth_sysfs_register();
8581 if (rc)
8582 goto out_dbf;
1da177e4
LT		 8583
8584#ifdef CONFIG_QETH_IPV6
8b98a37c
FP		 8585 rc = qeth_ipv6_init();
8586 if (rc) {
8587 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
1da177e4
LT		 8588 goto out_sysfs;
8589 }
8590#endif /* QETH_IPV6 */
8b98a37c
FP		 8591 rc = qeth_register_notifiers();
8592 if (rc)
1da177e4 8593 goto out_ipv6;
8b98a37c
FP		 8594 rc = qeth_create_procfs_entries();
8595 if (rc)
1da177e4
LT		 8596 goto out_notifiers;
8597
8598 return rc;
8599
8600out_notifiers:
8601 qeth_unregister_notifiers();
8602out_ipv6:
8603#ifdef CONFIG_QETH_IPV6
8604 qeth_ipv6_uninit();
1da177e4 8605out_sysfs:
8b98a37c 8606#endif /* QETH_IPV6 */
1da177e4 8607 qeth_sysfs_unregister();
8b98a37c 8608out_dbf:
1da177e4
LT		 8609 qeth_unregister_dbf_views();
8610out_err:
8b98a37c 8611 PRINT_ERR("Initialization failed with code %d\n", rc);
1da177e4
LT		 8612 return rc;
8613}
8614
8615static void
8616__exit qeth_exit(void)
8617{
8618 struct qeth_card *card, *tmp;
8619 unsigned long flags;
8620
8621 QETH_DBF_TEXT(trace,1, "cleanup.");
8622
8623 /*
8624 * Weed would not need to clean up our devices here, because the
8625 * common device layer calls qeth_remove_device for each device
8626 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8627 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8628 * qeth_remove_device called by the common device layer would otherwise
8629 * do a "hard" shutdown (card->use_hard_stop is set to one in
8630 * qeth_remove_device).
8631 */
8632again:
8633 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8634 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8635 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8636 qeth_set_offline(card->gdev);
8637 qeth_remove_device(card->gdev);
8638 goto again;
8639 }
8640 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8641#ifdef CONFIG_QETH_IPV6
8642 qeth_ipv6_uninit();
8643#endif
8644 qeth_unregister_notifiers();
8645 qeth_remove_procfs_entries();
8646 qeth_sysfs_unregister();
8647 qeth_unregister_dbf_views();
8648 printk("qeth: removed\n");
8649}
8650
500f83ab
UB		 8651EXPORT_SYMBOL(qeth_osn_register);
8652EXPORT_SYMBOL(qeth_osn_deregister);
8653EXPORT_SYMBOL(qeth_osn_assist);
1da177e4
LT		 8654module_init(qeth_init);
8655module_exit(qeth_exit);
1387780f 8656MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
1da177e4
LT		 8657MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8658 "Copyright 2000,2003 IBM Corporation\n");
8659
8660MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)