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Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / s390 / net / qeth_main.c
CommitLineData
1da177e4 1/*
e018ba1f 2 * linux/drivers/s390/net/qeth_main.c
1da177e4
LT		 3 *
4 * Linux on zSeries OSA Express and HiperSockets support
5 *
6 * Copyright 2000,2003 IBM Corporation
7 *
8 * Author(s): Original Code written by
9 * Utz Bacher (utz.bacher@de.ibm.com)
10 * Rewritten by
1387780f 11 * Frank Pavlic (fpavlic@de.ibm.com) and
1da177e4
LT		 12 * Thomas Spatzier <tspat@de.ibm.com>
13 *
1da177e4
LT		 14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
1da177e4 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 */
2281 skb->mac.raw = skb->data;
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");
2309 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2310 /* this is a fake ethernet header */
2311 fake_hdr = (struct trh_hdr *) skb->mac.raw;
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
FP		 2361 QETH_DBF_TEXT(trace,5,"skbfketh");
2362 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
1da177e4
LT		 2363 /* this is a fake ethernet header */
2364 fake_hdr = (struct ethhdr *) skb->mac.raw;
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
2464 skb->mac.raw = skb->data;
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++){
3657 if (vg->vlan_devices[i] == dev){
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)
3781 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3782 else if (skb->protocol == ETH_P_IP)
3783 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3784 /* ... */
3785 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3786 return RTN_BROADCAST;
3787 else {
3788 u16 hdr_mac;
3789
3790 hdr_mac = *((u16 *)skb->data);
3791 /* tr multicast? */
3792 switch (card->info.link_type) {
3793 case QETH_LINK_TYPE_HSTR:
3794 case QETH_LINK_TYPE_LANE_TR:
3795 if ((hdr_mac == QETH_TR_MAC_NC) ||
3796 (hdr_mac == QETH_TR_MAC_C))
3797 return RTN_MULTICAST;
1380fee2 3798 break;
1da177e4
LT		 3799 /* eth or so multicast? */
3800 default:
3801 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3802 (hdr_mac == QETH_ETH_MAC_V6))
3803 return RTN_MULTICAST;
3804 }
3805 }
3806 return cast_type;
3807}
3808
4d284cac 3809static int
1da177e4
LT		 3810qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3811 int ipv, int cast_type)
3812{
3813 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3814 return card->qdio.default_out_queue;
3815 switch (card->qdio.no_out_queues) {
3816 case 4:
3817 if (cast_type && card->info.is_multicast_different)
3818 return card->info.is_multicast_different &
3819 (card->qdio.no_out_queues - 1);
3820 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3821 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3822 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3823 return 3;
3824 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3825 return 2;
3826 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3827 return 1;
3828 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3829 return 0;
3830 }
3831 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3832 return 3 - (skb->nh.iph->tos >> 6);
3833 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3834 /* TODO: IPv6!!! */
3835 }
3836 return card->qdio.default_out_queue;
3837 case 1: /* fallthrough for single-out-queue 1920-device */
3838 default:
3839 return card->qdio.default_out_queue;
3840 }
3841}
3842
3843static inline int
3844qeth_get_ip_version(struct sk_buff *skb)
3845{
3846 switch (skb->protocol) {
3847 case ETH_P_IPV6:
3848 return 6;
3849 case ETH_P_IP:
3850 return 4;
3851 default:
3852 return 0;
3853 }
3854}
3855
4d284cac 3856static struct qeth_hdr *
f7b65d70 3857__qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
1da177e4 3858{
1da177e4
LT		 3859#ifdef CONFIG_QETH_VLAN
3860 u16 *tag;
f7b65d70 3861 if (card->vlangrp && vlan_tx_tag_present(skb) &&
1da177e4
LT		 3862 ((ipv == 6) || card->options.layer2) ) {
3863 /*
3864 * Move the mac addresses (6 bytes src, 6 bytes dest)
3865 * to the beginning of the new header. We are using three
3866 * memcpys instead of one memmove to save cycles.
3867 */
f7b65d70
FP		 3868 skb_push(skb, VLAN_HLEN);
3869 memcpy(skb->data, skb->data + 4, 4);
3870 memcpy(skb->data + 4, skb->data + 8, 4);
3871 memcpy(skb->data + 8, skb->data + 12, 4);
3872 tag = (u16 *)(skb->data + 12);
1da177e4
LT		 3873 /*
3874 * first two bytes = ETH_P_8021Q (0x8100)
3875 * second two bytes = VLANID
3876 */
3877 *tag = __constant_htons(ETH_P_8021Q);
f7b65d70 3878 *(tag + 1) = htons(vlan_tx_tag_get(skb));
1da177e4
LT		 3879 }
3880#endif
f7b65d70
FP		 3881 return ((struct qeth_hdr *)
3882 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3883}
3884
4d284cac 3885static void
f7b65d70
FP		 3886__qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3887{
3888 if (orig_skb != new_skb)
3889 dev_kfree_skb_any(new_skb);
3890}
3891
4d284cac 3892static struct sk_buff *
f7b65d70
FP		 3893qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3894 struct qeth_hdr **hdr, int ipv)
3895{
2d36c16e 3896 struct sk_buff *new_skb, *new_skb2;
f7b65d70
FP		 3897
3898 QETH_DBF_TEXT(trace, 6, "prepskb");
2d36c16e
FB		 3899 new_skb = skb;
3900 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
3901 if (!new_skb)
f7b65d70 3902 return NULL;
2d36c16e
FB		 3903 new_skb2 = qeth_realloc_headroom(card, new_skb,
3904 sizeof(struct qeth_hdr));
3905 if (!new_skb2) {
3906 __qeth_free_new_skb(skb, new_skb);
3907 return NULL;
3908 }
3909 if (new_skb != skb)
3910 __qeth_free_new_skb(new_skb2, new_skb);
3911 new_skb = new_skb2;
f7b65d70
FP		 3912 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3913 if (*hdr == NULL) {
3914 __qeth_free_new_skb(skb, new_skb);
3915 return NULL;
3916 }
3917 return new_skb;
1da177e4
LT		 3918}
3919
3920static inline u8
3921qeth_get_qeth_hdr_flags4(int cast_type)
3922{
3923 if (cast_type == RTN_MULTICAST)
3924 return QETH_CAST_MULTICAST;
3925 if (cast_type == RTN_BROADCAST)
3926 return QETH_CAST_BROADCAST;
3927 return QETH_CAST_UNICAST;
3928}
3929
3930static inline u8
3931qeth_get_qeth_hdr_flags6(int cast_type)
3932{
3933 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3934 if (cast_type == RTN_MULTICAST)
3935 return ct | QETH_CAST_MULTICAST;
3936 if (cast_type == RTN_ANYCAST)
3937 return ct | QETH_CAST_ANYCAST;
3938 if (cast_type == RTN_BROADCAST)
3939 return ct | QETH_CAST_BROADCAST;
3940 return ct | QETH_CAST_UNICAST;
3941}
3942
4d284cac 3943static void
1da177e4
LT		 3944qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3945 struct sk_buff *skb)
3946{
3947 __u16 hdr_mac;
3948
3949 if (!memcmp(skb->data+QETH_HEADER_SIZE,
3950 skb->dev->broadcast,6)) { /* broadcast? */
3951 *(__u32 *)hdr->hdr.l2.flags |=
3952 QETH_LAYER2_FLAG_BROADCAST << 8;
3953 return;
3954 }
3955 hdr_mac=*((__u16*)skb->data);
3956 /* tr multicast? */
3957 switch (card->info.link_type) {
3958 case QETH_LINK_TYPE_HSTR:
3959 case QETH_LINK_TYPE_LANE_TR:
3960 if ((hdr_mac == QETH_TR_MAC_NC) ||
3961 (hdr_mac == QETH_TR_MAC_C) )
3962 *(__u32 *)hdr->hdr.l2.flags |=
3963 QETH_LAYER2_FLAG_MULTICAST << 8;
3964 else
3965 *(__u32 *)hdr->hdr.l2.flags |=
3966 QETH_LAYER2_FLAG_UNICAST << 8;
3967 break;
3968 /* eth or so multicast? */
3969 default:
3970 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3971 (hdr_mac==QETH_ETH_MAC_V6) )
3972 *(__u32 *)hdr->hdr.l2.flags |=
3973 QETH_LAYER2_FLAG_MULTICAST << 8;
3974 else
3975 *(__u32 *)hdr->hdr.l2.flags |=
3976 QETH_LAYER2_FLAG_UNICAST << 8;
3977 }
3978}
3979
4d284cac 3980static void
1da177e4
LT		 3981qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3982 struct sk_buff *skb, int cast_type)
3983{
3984 memset(hdr, 0, sizeof(struct qeth_hdr));
3985 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
3986
3987 /* set byte 0 to "0x02" and byte 3 to casting flags */
3988 if (cast_type==RTN_MULTICAST)
3989 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
3990 else if (cast_type==RTN_BROADCAST)
3991 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
3992 else
3993 qeth_layer2_get_packet_type(card, hdr, skb);
3994
3995 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
3996#ifdef CONFIG_QETH_VLAN
3997 /* VSWITCH relies on the VLAN
3998 * information to be present in
3999 * the QDIO header */
4000 if ((card->vlangrp != NULL) &&
4001 vlan_tx_tag_present(skb)) {
4002 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4003 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4004 }
4005#endif
4006}
4007
4008void
4009qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4010 struct sk_buff *skb, int ipv, int cast_type)
4011{
4012 QETH_DBF_TEXT(trace, 6, "fillhdr");
4013
4014 memset(hdr, 0, sizeof(struct qeth_hdr));
4015 if (card->options.layer2) {
4016 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4017 return;
4018 }
4019 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4020 hdr->hdr.l3.ext_flags = 0;
4021#ifdef CONFIG_QETH_VLAN
4022 /*
4023 * before we're going to overwrite this location with next hop ip.
4024 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4025 */
4026 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4027 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4028 QETH_HDR_EXT_VLAN_FRAME :
4029 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4030 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4031 }
4032#endif /* CONFIG_QETH_VLAN */
4033 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4034 if (ipv == 4) { /* IPv4 */
4035 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4036 memset(hdr->hdr.l3.dest_addr, 0, 12);
4037 if ((skb->dst) && (skb->dst->neighbour)) {
4038 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4039 *((u32 *) skb->dst->neighbour->primary_key);
4040 } else {
4041 /* fill in destination address used in ip header */
4042 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4043 }
4044 } else if (ipv == 6) { /* IPv6 or passthru */
4045 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4046 if ((skb->dst) && (skb->dst->neighbour)) {
4047 memcpy(hdr->hdr.l3.dest_addr,
4048 skb->dst->neighbour->primary_key, 16);
4049 } else {
4050 /* fill in destination address used in ip header */
4051 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4052 }
4053 } else { /* passthrough */
e23dd9cd 4054 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
e82b0f2c 4055 !memcmp(skb->data + sizeof(struct qeth_hdr) +
9a455819
FP		 4056 sizeof(__u16), skb->dev->broadcast, 6)) {
4057 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4058 QETH_HDR_PASSTHRU;
e23dd9cd 4059 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
1da177e4 4060 skb->dev->broadcast, 6)) { /* broadcast? */
e23dd9cd
FP		 4061 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4062 QETH_HDR_PASSTHRU;
1da177e4
LT		 4063 } else {
4064 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4065 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4066 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4067 }
4068 }
4069}
4070
4d284cac 4071static void
1da177e4 4072__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
05e08a2a 4073 int is_tso, int *next_element_to_fill)
1da177e4
LT		 4074{
4075 int length = skb->len;
4076 int length_here;
4077 int element;
4078 char *data;
05e08a2a 4079 int first_lap ;
1da177e4
LT		 4080
4081 element = *next_element_to_fill;
4082 data = skb->data;
05e08a2a
FP		 4083 first_lap = (is_tso == 0 ? 1 : 0);
4084
1da177e4
LT		 4085 while (length > 0) {
4086 /* length_here is the remaining amount of data in this page */
4087 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4088 if (length < length_here)
4089 length_here = length;
05e08a2a 4090
1da177e4
LT		 4091 buffer->element[element].addr = data;
4092 buffer->element[element].length = length_here;
4093 length -= length_here;
05e08a2a 4094 if (!length) {
1da177e4
LT		 4095 if (first_lap)
4096 buffer->element[element].flags = 0;
4097 else
4098 buffer->element[element].flags =
4099 SBAL_FLAGS_LAST_FRAG;
4100 } else {
4101 if (first_lap)
4102 buffer->element[element].flags =
4103 SBAL_FLAGS_FIRST_FRAG;
4104 else
4105 buffer->element[element].flags =
4106 SBAL_FLAGS_MIDDLE_FRAG;
4107 }
4108 data += length_here;
4109 element++;
4110 first_lap = 0;
4111 }
4112 *next_element_to_fill = element;
4113}
4114
4d284cac 4115static int
1da177e4
LT		 4116qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4117 struct qeth_qdio_out_buffer *buf,
4118 struct sk_buff *skb)
4119{
4120 struct qdio_buffer *buffer;
05e08a2a
FP		 4121 struct qeth_hdr_tso *hdr;
4122 int flush_cnt = 0, hdr_len, large_send = 0;
1da177e4
LT		 4123
4124 QETH_DBF_TEXT(trace, 6, "qdfillbf");
05e08a2a 4125
1da177e4
LT		 4126 buffer = buf->buffer;
4127 atomic_inc(&skb->users);
4128 skb_queue_tail(&buf->skb_list, skb);
05e08a2a
FP		 4129
4130 hdr = (struct qeth_hdr_tso *) skb->data;
4131 /*check first on TSO ....*/
4132 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4133 int element = buf->next_element_to_fill;
4134
4135 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4136 /*fill first buffer entry only with header information */
4137 buffer->element[element].addr = skb->data;
4138 buffer->element[element].length = hdr_len;
4139 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4140 buf->next_element_to_fill++;
4141 skb->data += hdr_len;
4142 skb->len -= hdr_len;
4143 large_send = 1;
4144 }
1da177e4 4145 if (skb_shinfo(skb)->nr_frags == 0)
05e08a2a 4146 __qeth_fill_buffer(skb, buffer, large_send,
1da177e4
LT		 4147 (int *)&buf->next_element_to_fill);
4148 else
05e08a2a 4149 __qeth_fill_buffer_frag(skb, buffer, large_send,
1da177e4
LT		 4150 (int *)&buf->next_element_to_fill);
4151
4152 if (!queue->do_pack) {
4153 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4154 /* set state to PRIMED -> will be flushed */
4155 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4156 flush_cnt = 1;
4157 } else {
4158 QETH_DBF_TEXT(trace, 6, "fillbfpa");
09d2d38a
FP		 4159 if (queue->card->options.performance_stats)
4160 queue->card->perf_stats.skbs_sent_pack++;
1da177e4
LT		 4161 if (buf->next_element_to_fill >=
4162 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4163 /*
4164 * packed buffer if full -> set state PRIMED
4165 * -> will be flushed
4166 */
4167 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4168 flush_cnt = 1;
4169 }
4170 }
4171 return flush_cnt;
4172}
4173
4d284cac 4174static int
1da177e4
LT		 4175qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4176 struct sk_buff *skb, struct qeth_hdr *hdr,
4177 int elements_needed,
4178 struct qeth_eddp_context *ctx)
4179{
4180 struct qeth_qdio_out_buffer *buffer;
4181 int buffers_needed = 0;
4182 int flush_cnt = 0;
4183 int index;
4184
4185 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4186
4187 /* spin until we get the queue ... */
973bd993
MS		 4188 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4189 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4190 /* ... now we've got the queue */
4191 index = queue->next_buf_to_fill;
4192 buffer = &queue->bufs[queue->next_buf_to_fill];
4193 /*
4194 * check if buffer is empty to make sure that we do not 'overtake'
4195 * ourselves and try to fill a buffer that is already primed
4196 */
f7b65d70
FP		 4197 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4198 goto out;
1da177e4
LT		 4199 if (ctx == NULL)
4200 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4201 QDIO_MAX_BUFFERS_PER_Q;
4202 else {
4203 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
f7b65d70
FP		 4204 if (buffers_needed < 0)
4205 goto out;
1da177e4
LT		 4206 queue->next_buf_to_fill =
4207 (queue->next_buf_to_fill + buffers_needed) %
4208 QDIO_MAX_BUFFERS_PER_Q;
4209 }
4210 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4211 if (ctx == NULL) {
4212 qeth_fill_buffer(queue, buffer, skb);
4213 qeth_flush_buffers(queue, 0, index, 1);
4214 } else {
4215 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4216 WARN_ON(buffers_needed != flush_cnt);
4217 qeth_flush_buffers(queue, 0, index, flush_cnt);
4218 }
4219 return 0;
f7b65d70
FP		 4220out:
4221 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4222 return -EBUSY;
1da177e4
LT		 4223}
4224
4d284cac 4225static int
1da177e4
LT		 4226qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4227 struct sk_buff *skb, struct qeth_hdr *hdr,
4228 int elements_needed, struct qeth_eddp_context *ctx)
4229{
4230 struct qeth_qdio_out_buffer *buffer;
4231 int start_index;
4232 int flush_count = 0;
4233 int do_pack = 0;
4234 int tmp;
4235 int rc = 0;
4236
4237 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4238
4239 /* spin until we get the queue ... */
973bd993
MS		 4240 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4241 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4242 start_index = queue->next_buf_to_fill;
4243 buffer = &queue->bufs[queue->next_buf_to_fill];
4244 /*
4245 * check if buffer is empty to make sure that we do not 'overtake'
4246 * ourselves and try to fill a buffer that is already primed
4247 */
f7b65d70 4248 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
1da177e4
LT		 4249 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4250 return -EBUSY;
4251 }
4252 /* check if we need to switch packing state of this queue */
4253 qeth_switch_to_packing_if_needed(queue);
4254 if (queue->do_pack){
4255 do_pack = 1;
4256 if (ctx == NULL) {
4257 /* does packet fit in current buffer? */
4258 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4259 buffer->next_element_to_fill) < elements_needed){
4260 /* ... no -> set state PRIMED */
4261 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4262 flush_count++;
4263 queue->next_buf_to_fill =
4264 (queue->next_buf_to_fill + 1) %
4265 QDIO_MAX_BUFFERS_PER_Q;
4266 buffer = &queue->bufs[queue->next_buf_to_fill];
4267 /* we did a step forward, so check buffer state
4268 * again */
4269 if (atomic_read(&buffer->state) !=
4270 QETH_QDIO_BUF_EMPTY){
1da177e4
LT		 4271 qeth_flush_buffers(queue, 0, start_index, flush_count);
4272 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4273 return -EBUSY;
4274 }
4275 }
4276 } else {
4277 /* check if we have enough elements (including following
4278 * free buffers) to handle eddp context */
4279 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4280 printk("eddp tx_dropped 1\n");
1da177e4
LT		 4281 rc = -EBUSY;
4282 goto out;
4283 }
4284 }
4285 }
4286 if (ctx == NULL)
4287 tmp = qeth_fill_buffer(queue, buffer, skb);
4288 else {
4289 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4290 if (tmp < 0) {
4291 printk("eddp tx_dropped 2\n");
1da177e4
LT		 4292 rc = - EBUSY;
4293 goto out;
4294 }
4295 }
4296 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4297 QDIO_MAX_BUFFERS_PER_Q;
4298 flush_count += tmp;
4299out:
4300 if (flush_count)
4301 qeth_flush_buffers(queue, 0, start_index, flush_count);
d805d7c6 4302 else if (!atomic_read(&queue->set_pci_flags_count))
9163bb2e 4303 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
1da177e4
LT		 4304 /*
4305 * queue->state will go from LOCKED -> UNLOCKED or from
4306 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4307 * (switch packing state or flush buffer to get another pci flag out).
4308 * In that case we will enter this loop
4309 */
4310 while (atomic_dec_return(&queue->state)){
4311 flush_count = 0;
4312 start_index = queue->next_buf_to_fill;
4313 /* check if we can go back to non-packing state */
4314 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4315 /*
4316 * check if we need to flush a packing buffer to get a pci
4317 * flag out on the queue
4318 */
4319 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4320 flush_count += qeth_flush_buffers_on_no_pci(queue);
4321 if (flush_count)
4322 qeth_flush_buffers(queue, 0, start_index, flush_count);
4323 }
4324 /* at this point the queue is UNLOCKED again */
09d2d38a 4325 if (queue->card->options.performance_stats && do_pack)
1da177e4 4326 queue->card->perf_stats.bufs_sent_pack += flush_count;
1da177e4
LT		 4327
4328 return rc;
4329}
4330
4d284cac 4331static int
e82b0f2c 4332qeth_get_elements_no(struct qeth_card *card, void *hdr,
9cb90de8 4333 struct sk_buff *skb, int elems)
05e08a2a
FP		 4334{
4335 int elements_needed = 0;
4336
f7b65d70 4337 if (skb_shinfo(skb)->nr_frags > 0)
05e08a2a 4338 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
f7b65d70 4339 if (elements_needed == 0)
05e08a2a
FP		 4340 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4341 + skb->len) >> PAGE_SHIFT);
9cb90de8 4342 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
f7b65d70
FP		 4343 PRINT_ERR("Invalid size of IP packet "
4344 "(Number=%d / Length=%d). Discarded.\n",
9cb90de8 4345 (elements_needed+elems), skb->len);
05e08a2a
FP		 4346 return 0;
4347 }
4348 return elements_needed;
4349}
4350
f7b65d70 4351
4d284cac 4352static int
1da177e4
LT		 4353qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4354{
4355 int ipv = 0;
4356 int cast_type;
4357 struct qeth_qdio_out_q *queue;
f3d242e8 4358 struct qeth_hdr *hdr = NULL;
1da177e4
LT		 4359 int elements_needed = 0;
4360 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4361 struct qeth_eddp_context *ctx = NULL;
95f6b5a1 4362 int tx_bytes = skb->len;
ba1aa084 4363 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
7967168c 4364 unsigned short tso_size = skb_shinfo(skb)->gso_size;
f7b65d70 4365 struct sk_buff *new_skb, *new_skb2;
1da177e4
LT		 4366 int rc;
4367
4368 QETH_DBF_TEXT(trace, 6, "sendpkt");
4369
f7b65d70
FP		 4370 new_skb = skb;
4371 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4372 (skb->protocol == htons(ETH_P_IPV6)))
4373 return -EPERM;
4374 cast_type = qeth_get_cast_type(card, skb);
4375 if ((cast_type == RTN_BROADCAST) &&
4376 (card->info.broadcast_capable == 0))
4377 return -EPERM;
4378 queue = card->qdio.out_qs
4379 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
1da177e4
LT		 4380 if (!card->options.layer2) {
4381 ipv = qeth_get_ip_version(skb);
4382 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
f7b65d70
FP		 4383 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4384 if (!new_skb)
4385 return -ENOMEM;
e23dd9cd 4386 if(card->dev->type == ARPHRD_IEEE802_TR){
f7b65d70 4387 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
e23dd9cd 4388 } else {
f7b65d70 4389 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
e23dd9cd 4390 }
1da177e4
LT		 4391 }
4392 }
89114afd 4393 if (skb_is_gso(skb))
1da177e4 4394 large_send = card->options.large_send;
f7b65d70
FP		 4395 /* check on OSN device*/
4396 if (card->info.type == QETH_CARD_TYPE_OSN)
4397 hdr = (struct qeth_hdr *)new_skb->data;
4398 /*are we able to do TSO ? */
1da177e4
LT		 4399 if ((large_send == QETH_LARGE_SEND_TSO) &&
4400 (cast_type == RTN_UNSPEC)) {
f7b65d70 4401 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
05e08a2a 4402 if (rc) {
f7b65d70
FP		 4403 __qeth_free_new_skb(skb, new_skb);
4404 return rc;
e82b0f2c 4405 }
05e08a2a 4406 elements_needed++;
f7b65d70
FP		 4407 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4408 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4409 if (!new_skb2) {
4410 __qeth_free_new_skb(skb, new_skb);
4411 return -EINVAL;
05e08a2a 4412 }
f7b65d70
FP		 4413 if (new_skb != skb)
4414 __qeth_free_new_skb(new_skb2, new_skb);
4415 new_skb = new_skb2;
4416 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
1da177e4 4417 }
1da177e4 4418 if (large_send == QETH_LARGE_SEND_EDDP) {
f7b65d70 4419 ctx = qeth_eddp_create_context(card, new_skb, hdr);
1da177e4 4420 if (ctx == NULL) {
f7b65d70 4421 __qeth_free_new_skb(skb, new_skb);
1da177e4
LT		 4422 PRINT_WARN("could not create eddp context\n");
4423 return -EINVAL;
4424 }
4425 } else {
f7b65d70 4426 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
9cb90de8 4427 elements_needed);
f7b65d70
FP		 4428 if (!elems) {
4429 __qeth_free_new_skb(skb, new_skb);
1da177e4 4430 return -EINVAL;
f7b65d70 4431 }
9cb90de8 4432 elements_needed += elems;
1da177e4
LT		 4433 }
4434
4435 if (card->info.type != QETH_CARD_TYPE_IQD)
f7b65d70 4436 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
1da177e4
LT		 4437 elements_needed, ctx);
4438 else
f7b65d70 4439 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
1da177e4 4440 elements_needed, ctx);
f7b65d70 4441 if (!rc) {
1da177e4 4442 card->stats.tx_packets++;
95f6b5a1 4443 card->stats.tx_bytes += tx_bytes;
f7b65d70
FP		 4444 if (new_skb != skb)
4445 dev_kfree_skb_any(skb);
09d2d38a
FP		 4446 if (card->options.performance_stats) {
4447 if (tso_size &&
4448 !(large_send == QETH_LARGE_SEND_NO)) {
4449 card->perf_stats.large_send_bytes += tx_bytes;
4450 card->perf_stats.large_send_cnt++;
4451 }
4452 if (nr_frags > 0) {
4453 card->perf_stats.sg_skbs_sent++;
4454 /* nr_frags + skb->data */
4455 card->perf_stats.sg_frags_sent +=
4456 nr_frags + 1;
4457 }
1da177e4 4458 }
f7b65d70
FP		 4459 } else {
4460 card->stats.tx_dropped++;
4461 __qeth_free_new_skb(skb, new_skb);
1da177e4
LT		 4462 }
4463 if (ctx != NULL) {
4464 /* drop creator's reference */
4465 qeth_eddp_put_context(ctx);
4466 /* free skb; it's not referenced by a buffer */
f7b65d70
FP		 4467 if (!rc)
4468 dev_kfree_skb_any(new_skb);
1da177e4
LT		 4469 }
4470 return rc;
4471}
4472
4473static int
4474qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4475{
4476 struct qeth_card *card = (struct qeth_card *) dev->priv;
4477 int rc = 0;
4478
4479 switch(regnum){
4480 case MII_BMCR: /* Basic mode control register */
4481 rc = BMCR_FULLDPLX;
4482 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
500f83ab 4483 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
1da177e4
LT		 4484 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4485 rc |= BMCR_SPEED100;
4486 break;
4487 case MII_BMSR: /* Basic mode status register */
4488 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4489 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4490 BMSR_100BASE4;
4491 break;
4492 case MII_PHYSID1: /* PHYS ID 1 */
4493 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4494 dev->dev_addr[2];
4495 rc = (rc >> 5) & 0xFFFF;
4496 break;
4497 case MII_PHYSID2: /* PHYS ID 2 */
4498 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4499 break;
4500 case MII_ADVERTISE: /* Advertisement control reg */
4501 rc = ADVERTISE_ALL;
4502 break;
4503 case MII_LPA: /* Link partner ability reg */
4504 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4505 LPA_100BASE4 | LPA_LPACK;
4506 break;
4507 case MII_EXPANSION: /* Expansion register */
4508 break;
4509 case MII_DCOUNTER: /* disconnect counter */
4510 break;
4511 case MII_FCSCOUNTER: /* false carrier counter */
4512 break;
4513 case MII_NWAYTEST: /* N-way auto-neg test register */
4514 break;
4515 case MII_RERRCOUNTER: /* rx error counter */
4516 rc = card->stats.rx_errors;
4517 break;
4518 case MII_SREVISION: /* silicon revision */
4519 break;
4520 case MII_RESV1: /* reserved 1 */
4521 break;
4522 case MII_LBRERROR: /* loopback, rx, bypass error */
4523 break;
4524 case MII_PHYADDR: /* physical address */
4525 break;
4526 case MII_RESV2: /* reserved 2 */
4527 break;
4528 case MII_TPISTATUS: /* TPI status for 10mbps */
4529 break;
4530 case MII_NCONFIG: /* network interface config */
4531 break;
4532 default:
1da177e4
LT		 4533 break;
4534 }
4535 return rc;
4536}
4537
1da177e4 4538
4d284cac 4539static const char *
1da177e4
LT		 4540qeth_arp_get_error_cause(int *rc)
4541{
4542 switch (*rc) {
4543 case QETH_IPA_ARP_RC_FAILED:
4544 *rc = -EIO;
4545 return "operation failed";
4546 case QETH_IPA_ARP_RC_NOTSUPP:
4547 *rc = -EOPNOTSUPP;
4548 return "operation not supported";
4549 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4550 *rc = -EINVAL;
4551 return "argument out of range";
4552 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4553 *rc = -EOPNOTSUPP;
4554 return "query operation not supported";
4555 case QETH_IPA_ARP_RC_Q_NO_DATA:
4556 *rc = -ENOENT;
4557 return "no query data available";
4558 default:
4559 return "unknown error";
4560 }
4561}
4562
4563static int
4564qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4565 __u16, long);
4566
4567static int
4568qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4569{
4570 int tmp;
4571 int rc;
4572
4573 QETH_DBF_TEXT(trace,3,"arpstnoe");
4574
f3d242e8
FP		 4575 /*
4576 * currently GuestLAN only supports the ARP assist function
4577 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4578 * thus we say EOPNOTSUPP for this ARP function
4579 */
1da177e4
LT		 4580 if (card->info.guestlan)
4581 return -EOPNOTSUPP;
4582 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4583 PRINT_WARN("ARP processing not supported "
4584 "on %s!\n", QETH_CARD_IFNAME(card));
4585 return -EOPNOTSUPP;
4586 }
4587 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4588 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4589 no_entries);
4590 if (rc) {
4591 tmp = rc;
4592 PRINT_WARN("Could not set number of ARP entries on %s: "
4593 "%s (0x%x/%d)\n",
4594 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4595 tmp, tmp);
4596 }
4597 return rc;
4598}
4599
4d284cac 4600static void
1da177e4
LT		 4601qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4602 struct qeth_arp_query_data *qdata,
4603 int entry_size, int uentry_size)
4604{
4605 char *entry_ptr;
4606 char *uentry_ptr;
4607 int i;
4608
4609 entry_ptr = (char *)&qdata->data;
4610 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4611 for (i = 0; i < qdata->no_entries; ++i){
4612 /* strip off 32 bytes "media specific information" */
4613 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4614 entry_ptr += entry_size;
4615 uentry_ptr += uentry_size;
4616 }
4617}
4618
4619static int
4620qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4621 unsigned long data)
4622{
4623 struct qeth_ipa_cmd *cmd;
4624 struct qeth_arp_query_data *qdata;
4625 struct qeth_arp_query_info *qinfo;
4626 int entry_size;
4627 int uentry_size;
4628 int i;
4629
4630 QETH_DBF_TEXT(trace,4,"arpquecb");
4631
4632 qinfo = (struct qeth_arp_query_info *) reply->param;
4633 cmd = (struct qeth_ipa_cmd *) data;
4634 if (cmd->hdr.return_code) {
4635 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4636 return 0;
4637 }
4638 if (cmd->data.setassparms.hdr.return_code) {
4639 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4640 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4641 return 0;
4642 }
4643 qdata = &cmd->data.setassparms.data.query_arp;
4644 switch(qdata->reply_bits){
4645 case 5:
4646 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4647 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4648 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4649 break;
4650 case 7:
4651 /* fall through to default */
4652 default:
4653 /* tr is the same as eth -> entry7 */
4654 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4655 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4656 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4657 break;
4658 }
4659 /* check if there is enough room in userspace */
4660 if ((qinfo->udata_len - qinfo->udata_offset) <
4661 qdata->no_entries * uentry_size){
4662 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4663 cmd->hdr.return_code = -ENOMEM;
4664 PRINT_WARN("query ARP user space buffer is too small for "
4665 "the returned number of ARP entries. "
4666 "Aborting query!\n");
4667 goto out_error;
4668 }
4669 QETH_DBF_TEXT_(trace, 4, "anore%i",
4670 cmd->data.setassparms.hdr.number_of_replies);
4671 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4672 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4673
4674 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4675 /* strip off "media specific information" */
4676 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4677 uentry_size);
4678 } else
4679 /*copy entries to user buffer*/
4680 memcpy(qinfo->udata + qinfo->udata_offset,
4681 (char *)&qdata->data, qdata->no_entries*uentry_size);
4682
4683 qinfo->no_entries += qdata->no_entries;
4684 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4685 /* check if all replies received ... */
4686 if (cmd->data.setassparms.hdr.seq_no <
4687 cmd->data.setassparms.hdr.number_of_replies)
4688 return 1;
4689 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4690 /* keep STRIP_ENTRIES flag so the user program can distinguish
4691 * stripped entries from normal ones */
4692 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4693 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4694 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4695 return 0;
4696out_error:
4697 i = 0;
4698 memcpy(qinfo->udata, &i, 4);
4699 return 0;
4700}
4701
4702static int
4703qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4704 int len, int (*reply_cb)(struct qeth_card *,
4705 struct qeth_reply *,
4706 unsigned long),
4707 void *reply_param)
4708{
4709 QETH_DBF_TEXT(trace,4,"sendarp");
4710
4711 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4712 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4713 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4714 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4715 reply_cb, reply_param);
4716}
4717
4718static int
4719qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4720 int len, int (*reply_cb)(struct qeth_card *,
4721 struct qeth_reply *,
4722 unsigned long),
4723 void *reply_param)
4724{
4725 u16 s1, s2;
4726
4727 QETH_DBF_TEXT(trace,4,"sendsnmp");
4728
4729 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4730 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4731 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4732 /* adjust PDU length fields in IPA_PDU_HEADER */
4733 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4734 s2 = (u32) len;
4735 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4736 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4737 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4738 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4739 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4740 reply_cb, reply_param);
4741}
4742
4743static struct qeth_cmd_buffer *
4744qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4745 __u16, __u16, enum qeth_prot_versions);
4746static int
d2c993d8 4747qeth_arp_query(struct qeth_card *card, char __user *udata)
1da177e4
LT		 4748{
4749 struct qeth_cmd_buffer *iob;
4750 struct qeth_arp_query_info qinfo = {0, };
4751 int tmp;
4752 int rc;
4753
4754 QETH_DBF_TEXT(trace,3,"arpquery");
4755
1da177e4
LT		 4756 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4757 IPA_ARP_PROCESSING)) {
4758 PRINT_WARN("ARP processing not supported "
4759 "on %s!\n", QETH_CARD_IFNAME(card));
4760 return -EOPNOTSUPP;
4761 }
4762 /* get size of userspace buffer and mask_bits -> 6 bytes */
4763 if (copy_from_user(&qinfo, udata, 6))
4764 return -EFAULT;
88abaab4 4765 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
1da177e4 4766 return -ENOMEM;
1da177e4
LT		 4767 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4768 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4769 IPA_CMD_ASS_ARP_QUERY_INFO,
4770 sizeof(int),QETH_PROT_IPV4);
4771
4772 rc = qeth_send_ipa_arp_cmd(card, iob,
4773 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4774 qeth_arp_query_cb, (void *)&qinfo);
4775 if (rc) {
4776 tmp = rc;
4777 PRINT_WARN("Error while querying ARP cache on %s: %s "
4778 "(0x%x/%d)\n",
4779 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4780 tmp, tmp);
3a6b95c8
HC		 4781 if (copy_to_user(udata, qinfo.udata, 4))
4782 rc = -EFAULT;
1da177e4 4783 } else {
3a6b95c8
HC		 4784 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4785 rc = -EFAULT;
1da177e4
LT		 4786 }
4787 kfree(qinfo.udata);
4788 return rc;
4789}
4790
4791/**
4792 * SNMP command callback
4793 */
4794static int
4795qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4796 unsigned long sdata)
4797{
4798 struct qeth_ipa_cmd *cmd;
4799 struct qeth_arp_query_info *qinfo;
4800 struct qeth_snmp_cmd *snmp;
4801 unsigned char *data;
4802 __u16 data_len;
4803
4804 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4805
4806 cmd = (struct qeth_ipa_cmd *) sdata;
4807 data = (unsigned char *)((char *)cmd - reply->offset);
4808 qinfo = (struct qeth_arp_query_info *) reply->param;
4809 snmp = &cmd->data.setadapterparms.data.snmp;
4810
4811 if (cmd->hdr.return_code) {
4812 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4813 return 0;
4814 }
4815 if (cmd->data.setadapterparms.hdr.return_code) {
4816 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4817 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4818 return 0;
4819 }
4820 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4821 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4822 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4823 else
4824 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4825
4826 /* check if there is enough room in userspace */
4827 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4828 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4829 cmd->hdr.return_code = -ENOMEM;
4830 return 0;
4831 }
4832 QETH_DBF_TEXT_(trace, 4, "snore%i",
4833 cmd->data.setadapterparms.hdr.used_total);
4834 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4835 /*copy entries to user buffer*/
4836 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4837 memcpy(qinfo->udata + qinfo->udata_offset,
4838 (char *)snmp,
4839 data_len + offsetof(struct qeth_snmp_cmd,data));
4840 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4841 } else {
4842 memcpy(qinfo->udata + qinfo->udata_offset,
4843 (char *)&snmp->request, data_len);
4844 }
4845 qinfo->udata_offset += data_len;
4846 /* check if all replies received ... */
4847 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4848 cmd->data.setadapterparms.hdr.used_total);
4849 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4850 cmd->data.setadapterparms.hdr.seq_no);
4851 if (cmd->data.setadapterparms.hdr.seq_no <
4852 cmd->data.setadapterparms.hdr.used_total)
4853 return 1;
4854 return 0;
4855}
4856
4857static struct qeth_cmd_buffer *
4858qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4859 enum qeth_prot_versions );
4860
4861static struct qeth_cmd_buffer *
4862qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4863{
4864 struct qeth_cmd_buffer *iob;
4865 struct qeth_ipa_cmd *cmd;
4866
4867 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4868 QETH_PROT_IPV4);
4869 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4870 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4871 cmd->data.setadapterparms.hdr.command_code = command;
4872 cmd->data.setadapterparms.hdr.used_total = 1;
4873 cmd->data.setadapterparms.hdr.seq_no = 1;
4874
4875 return iob;
4876}
4877
4878/**
4879 * function to send SNMP commands to OSA-E card
4880 */
4881static int
d2c993d8 4882qeth_snmp_command(struct qeth_card *card, char __user *udata)
1da177e4
LT		 4883{
4884 struct qeth_cmd_buffer *iob;
4885 struct qeth_ipa_cmd *cmd;
4886 struct qeth_snmp_ureq *ureq;
4887 int req_len;
4888 struct qeth_arp_query_info qinfo = {0, };
4889 int rc = 0;
4890
4891 QETH_DBF_TEXT(trace,3,"snmpcmd");
4892
4893 if (card->info.guestlan)
4894 return -EOPNOTSUPP;
4895
4896 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4897 (!card->options.layer2) ) {
4898 PRINT_WARN("SNMP Query MIBS not supported "
4899 "on %s!\n", QETH_CARD_IFNAME(card));
4900 return -EOPNOTSUPP;
4901 }
4902 /* skip 4 bytes (data_len struct member) to get req_len */
4903 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4904 return -EFAULT;
4905 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4906 if (!ureq) {
4907 QETH_DBF_TEXT(trace, 2, "snmpnome");
4908 return -ENOMEM;
4909 }
4910 if (copy_from_user(ureq, udata,
4911 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4912 kfree(ureq);
4913 return -EFAULT;
4914 }
4915 qinfo.udata_len = ureq->hdr.data_len;
88abaab4 4916 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
1da177e4
LT		 4917 kfree(ureq);
4918 return -ENOMEM;
4919 }
1da177e4
LT		 4920 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4921
4922 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4923 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4924 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4925 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4926 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4927 qeth_snmp_command_cb, (void *)&qinfo);
4928 if (rc)
4929 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4930 QETH_CARD_IFNAME(card), rc);
3a6b95c8
HC		 4931 else {
4932 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4933 rc = -EFAULT;
4934 }
1da177e4
LT		 4935
4936 kfree(ureq);
4937 kfree(qinfo.udata);
4938 return rc;
4939}
4940
4941static int
4942qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4943 unsigned long);
4944
4945static int
6c951b90
FP		 4946qeth_default_setadapterparms_cb(struct qeth_card *card,
4947 struct qeth_reply *reply,
4948 unsigned long data);
4949static int
1da177e4
LT		 4950qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4951 __u16, long,
4952 int (*reply_cb)
4953 (struct qeth_card *, struct qeth_reply *, unsigned long),
4954 void *reply_param);
4955
4956static int
4957qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4958{
4959 struct qeth_cmd_buffer *iob;
4960 char buf[16];
4961 int tmp;
4962 int rc;
4963
4964 QETH_DBF_TEXT(trace,3,"arpadent");
4965
4966 /*
f3d242e8
FP		 4967 * currently GuestLAN only supports the ARP assist function
4968 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
4969 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 4970 */
4971 if (card->info.guestlan)
4972 return -EOPNOTSUPP;
4973 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4974 PRINT_WARN("ARP processing not supported "
4975 "on %s!\n", QETH_CARD_IFNAME(card));
4976 return -EOPNOTSUPP;
4977 }
4978
4979 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4980 IPA_CMD_ASS_ARP_ADD_ENTRY,
4981 sizeof(struct qeth_arp_cache_entry),
4982 QETH_PROT_IPV4);
4983 rc = qeth_send_setassparms(card, iob,
4984 sizeof(struct qeth_arp_cache_entry),
4985 (unsigned long) entry,
4986 qeth_default_setassparms_cb, NULL);
4987 if (rc) {
4988 tmp = rc;
4989 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4990 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4991 "%s (0x%x/%d)\n",
4992 buf, QETH_CARD_IFNAME(card),
4993 qeth_arp_get_error_cause(&rc), tmp, tmp);
4994 }
4995 return rc;
4996}
4997
4998static int
4999qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5000{
5001 struct qeth_cmd_buffer *iob;
5002 char buf[16] = {0, };
5003 int tmp;
5004 int rc;
5005
5006 QETH_DBF_TEXT(trace,3,"arprment");
5007
5008 /*
f3d242e8
FP		 5009 * currently GuestLAN only supports the ARP assist function
5010 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5011 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5012 */
5013 if (card->info.guestlan)
5014 return -EOPNOTSUPP;
5015 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5016 PRINT_WARN("ARP processing not supported "
5017 "on %s!\n", QETH_CARD_IFNAME(card));
5018 return -EOPNOTSUPP;
5019 }
5020 memcpy(buf, entry, 12);
5021 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5022 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5023 12,
5024 QETH_PROT_IPV4);
5025 rc = qeth_send_setassparms(card, iob,
5026 12, (unsigned long)buf,
5027 qeth_default_setassparms_cb, NULL);
5028 if (rc) {
5029 tmp = rc;
5030 memset(buf, 0, 16);
5031 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5032 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5033 "%s (0x%x/%d)\n",
5034 buf, QETH_CARD_IFNAME(card),
5035 qeth_arp_get_error_cause(&rc), tmp, tmp);
5036 }
5037 return rc;
5038}
5039
5040static int
5041qeth_arp_flush_cache(struct qeth_card *card)
5042{
5043 int rc;
5044 int tmp;
5045
5046 QETH_DBF_TEXT(trace,3,"arpflush");
5047
5048 /*
f3d242e8
FP		 5049 * currently GuestLAN only supports the ARP assist function
5050 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5051 * thus we say EOPNOTSUPP for this ARP function
5052 */
1da177e4
LT		 5053 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5054 return -EOPNOTSUPP;
5055 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5056 PRINT_WARN("ARP processing not supported "
5057 "on %s!\n", QETH_CARD_IFNAME(card));
5058 return -EOPNOTSUPP;
5059 }
5060 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5061 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5062 if (rc){
5063 tmp = rc;
5064 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5065 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5066 tmp, tmp);
5067 }
5068 return rc;
5069}
5070
5071static int
5072qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5073{
5074 struct qeth_card *card = (struct qeth_card *)dev->priv;
5075 struct qeth_arp_cache_entry arp_entry;
5076 struct mii_ioctl_data *mii_data;
5077 int rc = 0;
5078
5079 if (!card)
5080 return -ENODEV;
5081
5082 if ((card->state != CARD_STATE_UP) &&
5083 (card->state != CARD_STATE_SOFTSETUP))
5084 return -ENODEV;
5085
500f83ab
UB		 5086 if (card->info.type == QETH_CARD_TYPE_OSN)
5087 return -EPERM;
5088
1da177e4
LT		 5089 switch (cmd){
5090 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5091 if ( !capable(CAP_NET_ADMIN) ||
5092 (card->options.layer2) ) {
5093 rc = -EPERM;
5094 break;
5095 }
5096 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5097 break;
5098 case SIOC_QETH_ARP_QUERY_INFO:
5099 if ( !capable(CAP_NET_ADMIN) ||
5100 (card->options.layer2) ) {
5101 rc = -EPERM;
5102 break;
5103 }
5104 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5105 break;
5106 case SIOC_QETH_ARP_ADD_ENTRY:
5107 if ( !capable(CAP_NET_ADMIN) ||
5108 (card->options.layer2) ) {
5109 rc = -EPERM;
5110 break;
5111 }
5112 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5113 sizeof(struct qeth_arp_cache_entry)))
5114 rc = -EFAULT;
5115 else
5116 rc = qeth_arp_add_entry(card, &arp_entry);
5117 break;
5118 case SIOC_QETH_ARP_REMOVE_ENTRY:
5119 if ( !capable(CAP_NET_ADMIN) ||
5120 (card->options.layer2) ) {
5121 rc = -EPERM;
5122 break;
5123 }
5124 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5125 sizeof(struct qeth_arp_cache_entry)))
5126 rc = -EFAULT;
5127 else
5128 rc = qeth_arp_remove_entry(card, &arp_entry);
5129 break;
5130 case SIOC_QETH_ARP_FLUSH_CACHE:
5131 if ( !capable(CAP_NET_ADMIN) ||
5132 (card->options.layer2) ) {
5133 rc = -EPERM;
5134 break;
5135 }
5136 rc = qeth_arp_flush_cache(card);
5137 break;
5138 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5139 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5140 break;
5141 case SIOC_QETH_GET_CARD_TYPE:
5142 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5143 !card->info.guestlan)
5144 return 1;
5145 return 0;
5146 break;
5147 case SIOCGMIIPHY:
5148 mii_data = if_mii(rq);
5149 mii_data->phy_id = 0;
5150 break;
5151 case SIOCGMIIREG:
5152 mii_data = if_mii(rq);
5153 if (mii_data->phy_id != 0)
5154 rc = -EINVAL;
5155 else
5156 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5157 mii_data->reg_num);
5158 break;
1da177e4
LT		 5159 default:
5160 rc = -EOPNOTSUPP;
5161 }
5162 if (rc)
5163 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5164 return rc;
5165}
5166
5167static struct net_device_stats *
5168qeth_get_stats(struct net_device *dev)
5169{
5170 struct qeth_card *card;
5171
5172 card = (struct qeth_card *) (dev->priv);
5173
5174 QETH_DBF_TEXT(trace,5,"getstat");
5175
5176 return &card->stats;
5177}
5178
5179static int
5180qeth_change_mtu(struct net_device *dev, int new_mtu)
5181{
5182 struct qeth_card *card;
5183 char dbf_text[15];
5184
5185 card = (struct qeth_card *) (dev->priv);
5186
5187 QETH_DBF_TEXT(trace,4,"chgmtu");
5188 sprintf(dbf_text, "%8x", new_mtu);
5189 QETH_DBF_TEXT(trace,4,dbf_text);
5190
5191 if (new_mtu < 64)
5192 return -EINVAL;
5193 if (new_mtu > 65535)
5194 return -EINVAL;
5195 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5196 (!qeth_mtu_is_valid(card, new_mtu)))
5197 return -EINVAL;
5198 dev->mtu = new_mtu;
5199 return 0;
5200}
5201
5202#ifdef CONFIG_QETH_VLAN
5203static void
5204qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5205{
5206 struct qeth_card *card;
5207 unsigned long flags;
5208
5209 QETH_DBF_TEXT(trace,4,"vlanreg");
5210
5211 card = (struct qeth_card *) dev->priv;
5212 spin_lock_irqsave(&card->vlanlock, flags);
5213 card->vlangrp = grp;
5214 spin_unlock_irqrestore(&card->vlanlock, flags);
5215}
5216
4d284cac 5217static void
1da177e4
LT		 5218qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5219 unsigned short vid)
5220{
5221 int i;
5222 struct sk_buff *skb;
5223 struct sk_buff_head tmp_list;
5224
5225 skb_queue_head_init(&tmp_list);
91ebe2a9 5226 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
1da177e4
LT		 5227 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5228 while ((skb = skb_dequeue(&buf->skb_list))){
5229 if (vlan_tx_tag_present(skb) &&
5230 (vlan_tx_tag_get(skb) == vid)) {
5231 atomic_dec(&skb->users);
5232 dev_kfree_skb(skb);
5233 } else
5234 skb_queue_tail(&tmp_list, skb);
5235 }
5236 }
5237 while ((skb = skb_dequeue(&tmp_list)))
5238 skb_queue_tail(&buf->skb_list, skb);
5239}
5240
5241static void
5242qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5243{
5244 int i, j;
5245
5246 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5247 for (i = 0; i < card->qdio.no_out_queues; ++i){
5248 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5249 qeth_free_vlan_buffer(card, &card->qdio.
5250 out_qs[i]->bufs[j], vid);
5251 }
5252}
5253
5254static void
5255qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5256{
5257 struct in_device *in_dev;
5258 struct in_ifaddr *ifa;
5259 struct qeth_ipaddr *addr;
5260
5261 QETH_DBF_TEXT(trace, 4, "frvaddr4");
6c88ad2d 5262
1da177e4 5263 rcu_read_lock();
e5ed6399 5264 in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
1da177e4
LT		 5265 if (!in_dev)
5266 goto out;
5267 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5268 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5269 if (addr){
5270 addr->u.a4.addr = ifa->ifa_address;
5271 addr->u.a4.mask = ifa->ifa_mask;
5272 addr->type = QETH_IP_TYPE_NORMAL;
5273 if (!qeth_delete_ip(card, addr))
5274 kfree(addr);
5275 }
5276 }
5277out:
5278 rcu_read_unlock();
5279}
5280
5281static void
5282qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5283{
5284#ifdef CONFIG_QETH_IPV6
5285 struct inet6_dev *in6_dev;
5286 struct inet6_ifaddr *ifa;
5287 struct qeth_ipaddr *addr;
5288
5289 QETH_DBF_TEXT(trace, 4, "frvaddr6");
6c88ad2d 5290
1da177e4
LT		 5291 in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5292 if (!in6_dev)
5293 return;
5294 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5295 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5296 if (addr){
5297 memcpy(&addr->u.a6.addr, &ifa->addr,
5298 sizeof(struct in6_addr));
5299 addr->u.a6.pfxlen = ifa->prefix_len;
5300 addr->type = QETH_IP_TYPE_NORMAL;
5301 if (!qeth_delete_ip(card, addr))
5302 kfree(addr);
5303 }
5304 }
5305 in6_dev_put(in6_dev);
5306#endif /* CONFIG_QETH_IPV6 */
5307}
5308
6c88ad2d
FP		 5309static void
5310qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5311{
5312 if (card->options.layer2 || !card->vlangrp)
5313 return;
5314 qeth_free_vlan_addresses4(card, vid);
5315 qeth_free_vlan_addresses6(card, vid);
5316}
5317
508cc2b0
FP		 5318static int
5319qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5320 struct qeth_reply *reply,
5321 unsigned long data)
5322{
5323 struct qeth_ipa_cmd *cmd;
5324
5325 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5326 cmd = (struct qeth_ipa_cmd *) data;
5327 if (cmd->hdr.return_code) {
5328 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
e82b0f2c 5329 "Continuing\n",cmd->data.setdelvlan.vlan_id,
508cc2b0
FP		 5330 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5331 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5332 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5333 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5334 }
5335 return 0;
5336}
5337
5338static int
1da177e4
LT		 5339qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5340 enum qeth_ipa_cmds ipacmd)
5341{
1da177e4
LT		 5342 struct qeth_ipa_cmd *cmd;
5343 struct qeth_cmd_buffer *iob;
5344
5345 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5346 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5347 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5348 cmd->data.setdelvlan.vlan_id = i;
e82b0f2c 5349 return qeth_send_ipa_cmd(card, iob,
508cc2b0 5350 qeth_layer2_send_setdelvlan_cb, NULL);
1da177e4
LT		 5351}
5352
5353static void
5354qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5355{
5356 unsigned short i;
5357
5358 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5359
5360 if (!card->vlangrp)
5361 return;
5362 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5363 if (card->vlangrp->vlan_devices[i] == NULL)
5364 continue;
5365 if (clear)
5366 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5367 else
5368 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5369 }
5370}
5371
5372/*add_vid is layer 2 used only ....*/
5373static void
5374qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5375{
5376 struct qeth_card *card;
5377
5378 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5379
5380 card = (struct qeth_card *) dev->priv;
5381 if (!card->options.layer2)
5382 return;
5383 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5384}
5385
5386/*... kill_vid used for both modes*/
5387static void
5388qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5389{
5390 struct qeth_card *card;
5391 unsigned long flags;
5392
5393 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5394
5395 card = (struct qeth_card *) dev->priv;
5396 /* free all skbs for the vlan device */
5397 qeth_free_vlan_skbs(card, vid);
5398 spin_lock_irqsave(&card->vlanlock, flags);
5399 /* unregister IP addresses of vlan device */
6c88ad2d 5400 qeth_free_vlan_addresses(card, vid);
1da177e4
LT		 5401 if (card->vlangrp)
5402 card->vlangrp->vlan_devices[vid] = NULL;
5403 spin_unlock_irqrestore(&card->vlanlock, flags);
5404 if (card->options.layer2)
5405 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5406 qeth_set_multicast_list(card->dev);
5407}
5408#endif
6c951b90
FP		 5409/**
5410 * Examine hardware response to SET_PROMISC_MODE
5411 */
5412static int
e82b0f2c 5413qeth_setadp_promisc_mode_cb(struct qeth_card *card,
6c951b90
FP		 5414 struct qeth_reply *reply,
5415 unsigned long data)
5416{
5417 struct qeth_ipa_cmd *cmd;
5418 struct qeth_ipacmd_setadpparms *setparms;
5419
5420 QETH_DBF_TEXT(trace,4,"prmadpcb");
5421
5422 cmd = (struct qeth_ipa_cmd *) data;
5423 setparms = &(cmd->data.setadapterparms);
e82b0f2c 5424
6c951b90 5425 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
e82b0f2c
JG		 5426 if (cmd->hdr.return_code) {
5427 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
6c951b90
FP		 5428 setparms->data.mode = SET_PROMISC_MODE_OFF;
5429 }
5430 card->info.promisc_mode = setparms->data.mode;
5431 return 0;
5432}
5433/*
5434 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5435 */
5436static void
5437qeth_setadp_promisc_mode(struct qeth_card *card)
5438{
5439 enum qeth_ipa_promisc_modes mode;
5440 struct net_device *dev = card->dev;
5441 struct qeth_cmd_buffer *iob;
5442 struct qeth_ipa_cmd *cmd;
5443
5444 QETH_DBF_TEXT(trace, 4, "setprom");
5445
5446 if (((dev->flags & IFF_PROMISC) &&
5447 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5448 (!(dev->flags & IFF_PROMISC) &&
5449 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5450 return;
5451 mode = SET_PROMISC_MODE_OFF;
5452 if (dev->flags & IFF_PROMISC)
5453 mode = SET_PROMISC_MODE_ON;
5454 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5455
5456 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5457 sizeof(struct qeth_ipacmd_setadpparms));
5458 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5459 cmd->data.setadapterparms.data.mode = mode;
5460 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5461}
1da177e4
LT		 5462
5463/**
5464 * set multicast address on card
5465 */
5466static void
5467qeth_set_multicast_list(struct net_device *dev)
5468{
5469 struct qeth_card *card = (struct qeth_card *) dev->priv;
5470
500f83ab
UB		 5471 if (card->info.type == QETH_CARD_TYPE_OSN)
5472 return ;
e82b0f2c 5473
66cc5d5a 5474 QETH_DBF_TEXT(trace, 3, "setmulti");
1da177e4 5475 qeth_delete_mc_addresses(card);
6c88ad2d
FP		 5476 if (card->options.layer2) {
5477 qeth_layer2_add_multicast(card);
5478 goto out;
5479 }
1da177e4
LT		 5480 qeth_add_multicast_ipv4(card);
5481#ifdef CONFIG_QETH_IPV6
5482 qeth_add_multicast_ipv6(card);
5483#endif
6c88ad2d 5484out:
ee2db684 5485 qeth_set_ip_addr_list(card);
6c951b90
FP		 5486 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5487 return;
ee2db684 5488 qeth_setadp_promisc_mode(card);
1da177e4
LT		 5489}
5490
5491static int
5492qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5493{
5494 return 0;
5495}
5496
5497static void
5498qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5499{
5500 if (dev->type == ARPHRD_IEEE802_TR)
5501 ip_tr_mc_map(ipm, mac);
5502 else
5503 ip_eth_mc_map(ipm, mac);
5504}
5505
5506static struct qeth_ipaddr *
5507qeth_get_addr_buffer(enum qeth_prot_versions prot)
5508{
5509 struct qeth_ipaddr *addr;
5510
88abaab4 5511 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
1da177e4
LT		 5512 if (addr == NULL) {
5513 PRINT_WARN("Not enough memory to add address\n");
5514 return NULL;
5515 }
1da177e4
LT		 5516 addr->type = QETH_IP_TYPE_NORMAL;
5517 addr->proto = prot;
5518 return addr;
5519}
5520
500f83ab
UB		 5521int
5522qeth_osn_assist(struct net_device *dev,
5523 void *data,
5524 int data_len)
5525{
5526 struct qeth_cmd_buffer *iob;
5527 struct qeth_card *card;
5528 int rc;
e82b0f2c 5529
500f83ab
UB		 5530 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5531 if (!dev)
5532 return -ENODEV;
5533 card = (struct qeth_card *)dev->priv;
5534 if (!card)
5535 return -ENODEV;
5536 if ((card->state != CARD_STATE_UP) &&
5537 (card->state != CARD_STATE_SOFTSETUP))
5538 return -ENODEV;
5539 iob = qeth_wait_for_buffer(&card->write);
5540 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5541 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5542 return rc;
5543}
5544
5545static struct net_device *
5546qeth_netdev_by_devno(unsigned char *read_dev_no)
5547{
5548 struct qeth_card *card;
5549 struct net_device *ndev;
5550 unsigned char *readno;
5551 __u16 temp_dev_no, card_dev_no;
5552 char *endp;
5553 unsigned long flags;
5554
5555 ndev = NULL;
5556 memcpy(&temp_dev_no, read_dev_no, 2);
5557 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5558 list_for_each_entry(card, &qeth_card_list.list, list) {
5559 readno = CARD_RDEV_ID(card);
5560 readno += (strlen(readno) - 4);
5561 card_dev_no = simple_strtoul(readno, &endp, 16);
5562 if (card_dev_no == temp_dev_no) {
5563 ndev = card->dev;
5564 break;
5565 }
5566 }
5567 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5568 return ndev;
5569}
5570
5571int
5572qeth_osn_register(unsigned char *read_dev_no,
5573 struct net_device **dev,
5574 int (*assist_cb)(struct net_device *, void *),
5575 int (*data_cb)(struct sk_buff *))
5576{
5577 struct qeth_card * card;
5578
5579 QETH_DBF_TEXT(trace, 2, "osnreg");
5580 *dev = qeth_netdev_by_devno(read_dev_no);
5581 if (*dev == NULL)
5582 return -ENODEV;
5583 card = (struct qeth_card *)(*dev)->priv;
5584 if (!card)
5585 return -ENODEV;
5586 if ((assist_cb == NULL) || (data_cb == NULL))
5587 return -EINVAL;
5588 card->osn_info.assist_cb = assist_cb;
5589 card->osn_info.data_cb = data_cb;
5590 return 0;
5591}
5592
5593void
5594qeth_osn_deregister(struct net_device * dev)
5595{
5596 struct qeth_card *card;
5597
5598 QETH_DBF_TEXT(trace, 2, "osndereg");
5599 if (!dev)
5600 return;
5601 card = (struct qeth_card *)dev->priv;
5602 if (!card)
5603 return;
5604 card->osn_info.assist_cb = NULL;
5605 card->osn_info.data_cb = NULL;
5606 return;
5607}
e82b0f2c 5608
1da177e4
LT		 5609static void
5610qeth_delete_mc_addresses(struct qeth_card *card)
5611{
5612 struct qeth_ipaddr *iptodo;
5613 unsigned long flags;
5614
5615 QETH_DBF_TEXT(trace,4,"delmc");
5616 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5617 if (!iptodo) {
5618 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5619 return;
5620 }
5621 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5622 spin_lock_irqsave(&card->ip_lock, flags);
5623 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5624 kfree(iptodo);
5625 spin_unlock_irqrestore(&card->ip_lock, flags);
5626}
5627
4d284cac 5628static void
1da177e4
LT		 5629qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5630{
5631 struct qeth_ipaddr *ipm;
5632 struct ip_mc_list *im4;
5633 char buf[MAX_ADDR_LEN];
5634
5635 QETH_DBF_TEXT(trace,4,"addmc");
5636 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5637 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5638 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5639 if (!ipm)
5640 continue;
5641 ipm->u.a4.addr = im4->multiaddr;
5642 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5643 ipm->is_multicast = 1;
5644 if (!qeth_add_ip(card,ipm))
5645 kfree(ipm);
5646 }
5647}
5648
5649static inline void
5650qeth_add_vlan_mc(struct qeth_card *card)
5651{
5652#ifdef CONFIG_QETH_VLAN
5653 struct in_device *in_dev;
5654 struct vlan_group *vg;
5655 int i;
5656
5657 QETH_DBF_TEXT(trace,4,"addmcvl");
5658 if ( ((card->options.layer2 == 0) &&
5659 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5660 (card->vlangrp == NULL) )
5661 return ;
5662
5663 vg = card->vlangrp;
5664 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5665 if (vg->vlan_devices[i] == NULL ||
5666 !(vg->vlan_devices[i]->flags & IFF_UP))
5667 continue;
5668 in_dev = in_dev_get(vg->vlan_devices[i]);
5669 if (!in_dev)
5670 continue;
5671 read_lock(&in_dev->mc_list_lock);
5672 qeth_add_mc(card,in_dev);
5673 read_unlock(&in_dev->mc_list_lock);
5674 in_dev_put(in_dev);
5675 }
5676#endif
5677}
5678
5679static void
5680qeth_add_multicast_ipv4(struct qeth_card *card)
5681{
5682 struct in_device *in4_dev;
5683
5684 QETH_DBF_TEXT(trace,4,"chkmcv4");
5685 in4_dev = in_dev_get(card->dev);
5686 if (in4_dev == NULL)
5687 return;
5688 read_lock(&in4_dev->mc_list_lock);
5689 qeth_add_mc(card, in4_dev);
5690 qeth_add_vlan_mc(card);
5691 read_unlock(&in4_dev->mc_list_lock);
5692 in_dev_put(in4_dev);
5693}
5694
6c88ad2d
FP		 5695static void
5696qeth_layer2_add_multicast(struct qeth_card *card)
5697{
5698 struct qeth_ipaddr *ipm;
5699 struct dev_mc_list *dm;
5700
5701 QETH_DBF_TEXT(trace,4,"L2addmc");
5702 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5703 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5704 if (!ipm)
5705 continue;
5706 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5707 ipm->is_multicast = 1;
5708 if (!qeth_add_ip(card, ipm))
5709 kfree(ipm);
5710 }
5711}
5712
1da177e4 5713#ifdef CONFIG_QETH_IPV6
4d284cac 5714static void
1da177e4
LT		 5715qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5716{
5717 struct qeth_ipaddr *ipm;
5718 struct ifmcaddr6 *im6;
5719 char buf[MAX_ADDR_LEN];
5720
5721 QETH_DBF_TEXT(trace,4,"addmc6");
5722 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5723 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5724 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5725 if (!ipm)
5726 continue;
5727 ipm->is_multicast = 1;
5728 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5729 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5730 sizeof(struct in6_addr));
5731 if (!qeth_add_ip(card,ipm))
5732 kfree(ipm);
5733 }
5734}
5735
5736static inline void
5737qeth_add_vlan_mc6(struct qeth_card *card)
5738{
5739#ifdef CONFIG_QETH_VLAN
5740 struct inet6_dev *in_dev;
5741 struct vlan_group *vg;
5742 int i;
5743
5744 QETH_DBF_TEXT(trace,4,"admc6vl");
5745 if ( ((card->options.layer2 == 0) &&
5746 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5747 (card->vlangrp == NULL))
5748 return ;
5749
5750 vg = card->vlangrp;
5751 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5752 if (vg->vlan_devices[i] == NULL ||
5753 !(vg->vlan_devices[i]->flags & IFF_UP))
5754 continue;
5755 in_dev = in6_dev_get(vg->vlan_devices[i]);
5756 if (!in_dev)
5757 continue;
5758 read_lock(&in_dev->lock);
5759 qeth_add_mc6(card,in_dev);
5760 read_unlock(&in_dev->lock);
5761 in6_dev_put(in_dev);
5762 }
5763#endif /* CONFIG_QETH_VLAN */
5764}
5765
5766static void
5767qeth_add_multicast_ipv6(struct qeth_card *card)
5768{
5769 struct inet6_dev *in6_dev;
5770
5771 QETH_DBF_TEXT(trace,4,"chkmcv6");
e82b0f2c 5772 if (!qeth_is_supported(card, IPA_IPV6))
1da177e4 5773 return ;
1da177e4
LT		 5774 in6_dev = in6_dev_get(card->dev);
5775 if (in6_dev == NULL)
5776 return;
5777 read_lock(&in6_dev->lock);
5778 qeth_add_mc6(card, in6_dev);
5779 qeth_add_vlan_mc6(card);
5780 read_unlock(&in6_dev->lock);
5781 in6_dev_put(in6_dev);
5782}
5783#endif /* CONFIG_QETH_IPV6 */
5784
5785static int
5786qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5787 enum qeth_ipa_cmds ipacmd,
5788 int (*reply_cb) (struct qeth_card *,
5789 struct qeth_reply*,
5790 unsigned long))
5791{
5792 struct qeth_ipa_cmd *cmd;
5793 struct qeth_cmd_buffer *iob;
5794
5795 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5796 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5797 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5798 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5799 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5800 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5801}
5802
5803static int
5804qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5805 struct qeth_reply *reply,
5806 unsigned long data)
5807{
5808 struct qeth_ipa_cmd *cmd;
5809 __u8 *mac;
5810
5811 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5812 cmd = (struct qeth_ipa_cmd *) data;
5813 mac = &cmd->data.setdelmac.mac[0];
5814 /* MAC already registered, needed in couple/uncouple case */
5815 if (cmd->hdr.return_code == 0x2005) {
5816 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5817 "already existing on %s \n",
5818 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5819 QETH_CARD_IFNAME(card));
5820 cmd->hdr.return_code = 0;
5821 }
5822 if (cmd->hdr.return_code)
5823 PRINT_ERR("Could not set group MAC " \
5824 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5825 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5826 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5827 return 0;
5828}
5829
5830static int
5831qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5832{
5833 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5834 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5835 qeth_layer2_send_setgroupmac_cb);
5836}
5837
5838static int
5839qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5840 struct qeth_reply *reply,
5841 unsigned long data)
5842{
5843 struct qeth_ipa_cmd *cmd;
5844 __u8 *mac;
5845
5846 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5847 cmd = (struct qeth_ipa_cmd *) data;
5848 mac = &cmd->data.setdelmac.mac[0];
5849 if (cmd->hdr.return_code)
5850 PRINT_ERR("Could not delete group MAC " \
5851 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5852 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5853 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5854 return 0;
5855}
5856
5857static int
5858qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5859{
5860 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5861 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5862 qeth_layer2_send_delgroupmac_cb);
5863}
5864
5865static int
5866qeth_layer2_send_setmac_cb(struct qeth_card *card,
5867 struct qeth_reply *reply,
5868 unsigned long data)
5869{
5870 struct qeth_ipa_cmd *cmd;
5871
5872 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5873 cmd = (struct qeth_ipa_cmd *) data;
5874 if (cmd->hdr.return_code) {
5875 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5876 PRINT_WARN("Error in registering MAC address on " \
5877 "device %s: x%x\n", CARD_BUS_ID(card),
5878 cmd->hdr.return_code);
e08d88cc 5879 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5880 cmd->hdr.return_code = -EIO;
5881 } else {
e08d88cc 5882 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5883 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5884 OSA_ADDR_LEN);
5885 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5886 "successfully registered on device %s\n",
5887 card->dev->dev_addr[0], card->dev->dev_addr[1],
5888 card->dev->dev_addr[2], card->dev->dev_addr[3],
5889 card->dev->dev_addr[4], card->dev->dev_addr[5],
5890 card->dev->name);
5891 }
5892 return 0;
5893}
5894
5895static int
5896qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5897{
5898 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5899 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5900 qeth_layer2_send_setmac_cb);
5901}
5902
5903static int
5904qeth_layer2_send_delmac_cb(struct qeth_card *card,
5905 struct qeth_reply *reply,
5906 unsigned long data)
5907{
5908 struct qeth_ipa_cmd *cmd;
5909
5910 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5911 cmd = (struct qeth_ipa_cmd *) data;
5912 if (cmd->hdr.return_code) {
5913 PRINT_WARN("Error in deregistering MAC address on " \
5914 "device %s: x%x\n", CARD_BUS_ID(card),
5915 cmd->hdr.return_code);
5916 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5917 cmd->hdr.return_code = -EIO;
5918 return 0;
5919 }
e08d88cc 5920 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5921
5922 return 0;
5923}
5924static int
5925qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5926{
5927 QETH_DBF_TEXT(trace, 2, "L2Delmac");
e08d88cc 5928 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
1da177e4
LT		 5929 return 0;
5930 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5931 qeth_layer2_send_delmac_cb);
5932}
5933
5934static int
5935qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5936{
5937 struct sockaddr *addr = p;
5938 struct qeth_card *card;
5939 int rc = 0;
5940
5941 QETH_DBF_TEXT(trace, 3, "setmac");
5942
5943 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5944 QETH_DBF_TEXT(trace, 3, "setmcINV");
5945 return -EOPNOTSUPP;
5946 }
5947 card = (struct qeth_card *) dev->priv;
5948
5949 if (!card->options.layer2) {
e08d88cc 5950 PRINT_WARN("Setting MAC address on %s is not supported "
1da177e4
LT		 5951 "in Layer 3 mode.\n", dev->name);
5952 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5953 return -EOPNOTSUPP;
5954 }
500f83ab
UB		 5955 if (card->info.type == QETH_CARD_TYPE_OSN) {
5956 PRINT_WARN("Setting MAC address on %s is not supported.\n",
5957 dev->name);
5958 QETH_DBF_TEXT(trace, 3, "setmcOSN");
5959 return -EOPNOTSUPP;
5960 }
1da177e4
LT		 5961 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5962 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5963 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5964 if (!rc)
5965 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5966 return rc;
5967}
5968
5969static void
5970qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5971 __u8 command, enum qeth_prot_versions prot)
5972{
5973 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5974 cmd->hdr.command = command;
5975 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5976 cmd->hdr.seqno = card->seqno.ipa;
5977 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5978 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5979 if (card->options.layer2)
5980 cmd->hdr.prim_version_no = 2;
5981 else
5982 cmd->hdr.prim_version_no = 1;
5983 cmd->hdr.param_count = 1;
5984 cmd->hdr.prot_version = prot;
5985 cmd->hdr.ipa_supported = 0;
5986 cmd->hdr.ipa_enabled = 0;
5987}
5988
5989static struct qeth_cmd_buffer *
5990qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5991 enum qeth_prot_versions prot)
5992{
5993 struct qeth_cmd_buffer *iob;
5994 struct qeth_ipa_cmd *cmd;
5995
5996 iob = qeth_wait_for_buffer(&card->write);
5997 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5998 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
5999
6000 return iob;
6001}
6002
6003static int
6004qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6005{
6006 int rc;
6007 struct qeth_cmd_buffer *iob;
6008 struct qeth_ipa_cmd *cmd;
6009
6010 QETH_DBF_TEXT(trace,4,"setdelmc");
6011
6012 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6013 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6014 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6015 if (addr->proto == QETH_PROT_IPV6)
6016 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6017 sizeof(struct in6_addr));
6018 else
6019 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6020
6021 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6022
6023 return rc;
6024}
4d284cac 6025static void
1da177e4
LT		 6026qeth_fill_netmask(u8 *netmask, unsigned int len)
6027{
6028 int i,j;
6029 for (i=0;i<16;i++) {
6030 j=(len)-(i*8);
6031 if (j >= 8)
6032 netmask[i] = 0xff;
6033 else if (j > 0)
6034 netmask[i] = (u8)(0xFF00>>j);
6035 else
6036 netmask[i] = 0;
6037 }
6038}
6039
6040static int
6041qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6042 int ipacmd, unsigned int flags)
6043{
6044 int rc;
6045 struct qeth_cmd_buffer *iob;
6046 struct qeth_ipa_cmd *cmd;
6047 __u8 netmask[16];
6048
6049 QETH_DBF_TEXT(trace,4,"setdelip");
6050 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6051
6052 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6053 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6054 if (addr->proto == QETH_PROT_IPV6) {
6055 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6056 sizeof(struct in6_addr));
6057 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6058 memcpy(cmd->data.setdelip6.mask, netmask,
6059 sizeof(struct in6_addr));
6060 cmd->data.setdelip6.flags = flags;
6061 } else {
6062 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6063 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6064 cmd->data.setdelip4.flags = flags;
6065 }
6066
6067 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6068
6069 return rc;
6070}
6071
6072static int
6073qeth_layer2_register_addr_entry(struct qeth_card *card,
6074 struct qeth_ipaddr *addr)
6075{
6076 if (!addr->is_multicast)
6077 return 0;
6078 QETH_DBF_TEXT(trace, 2, "setgmac");
6079 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6080 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6081}
6082
6083static int
6084qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6085 struct qeth_ipaddr *addr)
6086{
6087 if (!addr->is_multicast)
6088 return 0;
6089 QETH_DBF_TEXT(trace, 2, "delgmac");
6090 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6091 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6092}
6093
6094static int
6095qeth_layer3_register_addr_entry(struct qeth_card *card,
6096 struct qeth_ipaddr *addr)
6097{
6098 char buf[50];
6099 int rc;
6100 int cnt = 3;
6101
6102 if (addr->proto == QETH_PROT_IPV4) {
6103 QETH_DBF_TEXT(trace, 2,"setaddr4");
6104 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6105 } else if (addr->proto == QETH_PROT_IPV6) {
6106 QETH_DBF_TEXT(trace, 2, "setaddr6");
6107 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6108 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6109 } else {
6110 QETH_DBF_TEXT(trace, 2, "setaddr?");
6111 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6112 }
6113 do {
6114 if (addr->is_multicast)
6115 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6116 else
6117 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6118 addr->set_flags);
6119 if (rc)
6120 QETH_DBF_TEXT(trace, 2, "failed");
6121 } while ((--cnt > 0) && rc);
6122 if (rc){
6123 QETH_DBF_TEXT(trace, 2, "FAILED");
6124 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6125 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6126 buf, rc, rc);
6127 }
6128 return rc;
6129}
6130
6131static int
6132qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6133 struct qeth_ipaddr *addr)
6134{
6135 //char buf[50];
6136 int rc;
6137
6138 if (addr->proto == QETH_PROT_IPV4) {
6139 QETH_DBF_TEXT(trace, 2,"deladdr4");
6140 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6141 } else if (addr->proto == QETH_PROT_IPV6) {
6142 QETH_DBF_TEXT(trace, 2, "deladdr6");
6143 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6144 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6145 } else {
6146 QETH_DBF_TEXT(trace, 2, "deladdr?");
6147 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6148 }
6149 if (addr->is_multicast)
6150 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6151 else
6152 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6153 addr->del_flags);
6154 if (rc) {
6155 QETH_DBF_TEXT(trace, 2, "failed");
6156 /* TODO: re-activate this warning as soon as we have a
6157 * clean mirco code
6158 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6159 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6160 buf, rc);
6161 */
6162 }
6163 return rc;
6164}
6165
6166static int
6167qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6168{
6169 if (card->options.layer2)
6170 return qeth_layer2_register_addr_entry(card, addr);
6171
6172 return qeth_layer3_register_addr_entry(card, addr);
6173}
6174
6175static int
6176qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6177{
6178 if (card->options.layer2)
6179 return qeth_layer2_deregister_addr_entry(card, addr);
6180
6181 return qeth_layer3_deregister_addr_entry(card, addr);
6182}
6183
6184static u32
6185qeth_ethtool_get_tx_csum(struct net_device *dev)
6186{
6187 /* We may need to say that we support tx csum offload if
6188 * we do EDDP or TSO. There are discussions going on to
6189 * enforce rules in the stack and in ethtool that make
6190 * SG and TSO depend on HW_CSUM. At the moment there are
6191 * no such rules....
6192 * If we say yes here, we have to checksum outbound packets
6193 * any time. */
6194 return 0;
6195}
6196
6197static int
6198qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6199{
6200 return -EINVAL;
6201}
6202
6203static u32
6204qeth_ethtool_get_rx_csum(struct net_device *dev)
6205{
6206 struct qeth_card *card = (struct qeth_card *)dev->priv;
6207
6208 return (card->options.checksum_type == HW_CHECKSUMMING);
6209}
6210
6211static int
6212qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6213{
6214 struct qeth_card *card = (struct qeth_card *)dev->priv;
6215
6216 if ((card->state != CARD_STATE_DOWN) &&
6217 (card->state != CARD_STATE_RECOVER))
6218 return -EPERM;
6219 if (data)
6220 card->options.checksum_type = HW_CHECKSUMMING;
6221 else
6222 card->options.checksum_type = SW_CHECKSUMMING;
6223 return 0;
6224}
6225
6226static u32
6227qeth_ethtool_get_sg(struct net_device *dev)
6228{
6229 struct qeth_card *card = (struct qeth_card *)dev->priv;
6230
6231 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6232 (dev->features & NETIF_F_SG));
6233}
6234
6235static int
6236qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6237{
6238 struct qeth_card *card = (struct qeth_card *)dev->priv;
6239
6240 if (data) {
6241 if (card->options.large_send != QETH_LARGE_SEND_NO)
6242 dev->features |= NETIF_F_SG;
6243 else {
6244 dev->features &= ~NETIF_F_SG;
6245 return -EINVAL;
6246 }
6247 } else
6248 dev->features &= ~NETIF_F_SG;
6249 return 0;
6250}
6251
6252static u32
6253qeth_ethtool_get_tso(struct net_device *dev)
6254{
6255 struct qeth_card *card = (struct qeth_card *)dev->priv;
6256
6257 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6258 (dev->features & NETIF_F_TSO));
6259}
6260
6261static int
6262qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6263{
6264 struct qeth_card *card = (struct qeth_card *)dev->priv;
6265
6266 if (data) {
6267 if (card->options.large_send != QETH_LARGE_SEND_NO)
6268 dev->features |= NETIF_F_TSO;
6269 else {
6270 dev->features &= ~NETIF_F_TSO;
6271 return -EINVAL;
6272 }
6273 } else
6274 dev->features &= ~NETIF_F_TSO;
6275 return 0;
6276}
6277
6278static struct ethtool_ops qeth_ethtool_ops = {
6279 .get_tx_csum = qeth_ethtool_get_tx_csum,
6280 .set_tx_csum = qeth_ethtool_set_tx_csum,
6281 .get_rx_csum = qeth_ethtool_get_rx_csum,
6282 .set_rx_csum = qeth_ethtool_set_rx_csum,
6283 .get_sg = qeth_ethtool_get_sg,
6284 .set_sg = qeth_ethtool_set_sg,
6285 .get_tso = qeth_ethtool_get_tso,
6286 .set_tso = qeth_ethtool_set_tso,
6287};
6288
2d36c16e
FB		 6289static int
6290qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6291{
6292 struct qeth_card *card;
6293 struct ethhdr *eth;
6294
6295 card = qeth_get_card_from_dev(skb->dev);
6296 if (card->options.layer2)
6297 goto haveheader;
6298#ifdef CONFIG_QETH_IPV6
6299 /* cause of the manipulated arp constructor and the ARP
6300 flag for OSAE devices we have some nasty exceptions */
6301 if (card->info.type == QETH_CARD_TYPE_OSAE) {
6302 if (!card->options.fake_ll) {
6303 if ((skb->pkt_type==PACKET_OUTGOING) &&
6304 (skb->protocol==ETH_P_IPV6))
6305 goto haveheader;
6306 else
6307 return 0;
6308 } else {
6309 if ((skb->pkt_type==PACKET_OUTGOING) &&
6310 (skb->protocol==ETH_P_IP))
6311 return 0;
6312 else
6313 goto haveheader;
6314 }
6315 }
6316#endif
6317 if (!card->options.fake_ll)
6318 return 0;
6319haveheader:
6320 eth = eth_hdr(skb);
6321 memcpy(haddr, eth->h_source, ETH_ALEN);
6322 return ETH_ALEN;
6323}
6324
1da177e4
LT		 6325static int
6326qeth_netdev_init(struct net_device *dev)
6327{
6328 struct qeth_card *card;
6329
6330 card = (struct qeth_card *) dev->priv;
6331
6332 QETH_DBF_TEXT(trace,3,"initdev");
6333
6334 dev->tx_timeout = &qeth_tx_timeout;
6335 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6336 dev->open = qeth_open;
6337 dev->stop = qeth_stop;
6338 dev->hard_start_xmit = qeth_hard_start_xmit;
6339 dev->do_ioctl = qeth_do_ioctl;
6340 dev->get_stats = qeth_get_stats;
6341 dev->change_mtu = qeth_change_mtu;
6342 dev->neigh_setup = qeth_neigh_setup;
6343 dev->set_multicast_list = qeth_set_multicast_list;
6344#ifdef CONFIG_QETH_VLAN
6345 dev->vlan_rx_register = qeth_vlan_rx_register;
6346 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6347 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6348#endif
1da177e4
LT		 6349 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6350 dev->rebuild_header = NULL;
6351 dev->hard_header = NULL;
1da177e4
LT		 6352 dev->header_cache_update = NULL;
6353 dev->hard_header_cache = NULL;
6354 }
6355#ifdef CONFIG_QETH_IPV6
6356 /*IPv6 address autoconfiguration stuff*/
6357 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6358 card->dev->dev_id = card->info.unique_id & 0xffff;
6359#endif
e82b0f2c 6360 if (card->options.fake_ll &&
ba1aa084
UB		 6361 (qeth_get_netdev_flags(card) & IFF_NOARP))
6362 dev->hard_header = qeth_fake_header;
2d36c16e
FB		 6363 if (dev->type == ARPHRD_IEEE802_TR)
6364 dev->hard_header_parse = NULL;
6365 else
6366 dev->hard_header_parse = qeth_hard_header_parse;
1da177e4
LT		 6367 dev->set_mac_address = qeth_layer2_set_mac_address;
6368 dev->flags |= qeth_get_netdev_flags(card);
6369 if ((card->options.fake_broadcast) ||
6370 (card->info.broadcast_capable))
6371 dev->flags |= IFF_BROADCAST;
6372 dev->hard_header_len =
6373 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6374 dev->addr_len = OSA_ADDR_LEN;
6375 dev->mtu = card->info.initial_mtu;
500f83ab
UB		 6376 if (card->info.type != QETH_CARD_TYPE_OSN)
6377 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
1da177e4
LT		 6378 SET_MODULE_OWNER(dev);
6379 return 0;
6380}
6381
6382static void
6383qeth_init_func_level(struct qeth_card *card)
6384{
6385 if (card->ipato.enabled) {
6386 if (card->info.type == QETH_CARD_TYPE_IQD)
6387 card->info.func_level =
6388 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6389 else
6390 card->info.func_level =
6391 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6392 } else {
6393 if (card->info.type == QETH_CARD_TYPE_IQD)
500f83ab 6394 /*FIXME:why do we have same values for dis and ena for osae??? */
1da177e4
LT		 6395 card->info.func_level =
6396 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6397 else
6398 card->info.func_level =
6399 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6400 }
6401}
6402
6403/**
6404 * hardsetup card, initialize MPC and QDIO stuff
6405 */
6406static int
6407qeth_hardsetup_card(struct qeth_card *card)
6408{
6409 int retries = 3;
6410 int rc;
6411
6412 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6413
6414retry:
6415 if (retries < 3){
6416 PRINT_WARN("Retrying to do IDX activates.\n");
6417 ccw_device_set_offline(CARD_DDEV(card));
6418 ccw_device_set_offline(CARD_WDEV(card));
6419 ccw_device_set_offline(CARD_RDEV(card));
6420 ccw_device_set_online(CARD_RDEV(card));
6421 ccw_device_set_online(CARD_WDEV(card));
6422 ccw_device_set_online(CARD_DDEV(card));
6423 }
500f83ab 6424 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 6425 if (rc == -ERESTARTSYS) {
6426 QETH_DBF_TEXT(setup, 2, "break1");
6427 return rc;
6428 } else if (rc) {
6429 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6430 if (--retries < 0)
6431 goto out;
6432 else
6433 goto retry;
6434 }
6435 if ((rc = qeth_get_unitaddr(card))){
6436 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6437 return rc;
6438 }
6439 qeth_init_tokens(card);
6440 qeth_init_func_level(card);
6441 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6442 if (rc == -ERESTARTSYS) {
6443 QETH_DBF_TEXT(setup, 2, "break2");
6444 return rc;
6445 } else if (rc) {
6446 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6447 if (--retries < 0)
6448 goto out;
6449 else
6450 goto retry;
6451 }
6452 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6453 if (rc == -ERESTARTSYS) {
6454 QETH_DBF_TEXT(setup, 2, "break3");
6455 return rc;
6456 } else if (rc) {
6457 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6458 if (--retries < 0)
6459 goto out;
6460 else
6461 goto retry;
6462 }
6463 if ((rc = qeth_mpc_initialize(card))){
6464 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6465 goto out;
6466 }
6467 /*network device will be recovered*/
6468 if (card->dev) {
6469 card->dev->hard_header = card->orig_hard_header;
e82b0f2c 6470 if (card->options.fake_ll &&
b85e1fa1
UB		 6471 (qeth_get_netdev_flags(card) & IFF_NOARP))
6472 card->dev->hard_header = qeth_fake_header;
1da177e4
LT		 6473 return 0;
6474 }
6475 /* at first set_online allocate netdev */
6476 card->dev = qeth_get_netdevice(card->info.type,
6477 card->info.link_type);
6478 if (!card->dev){
500f83ab
UB		 6479 qeth_qdio_clear_card(card, card->info.type !=
6480 QETH_CARD_TYPE_IQD);
1da177e4
LT		 6481 rc = -ENODEV;
6482 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6483 goto out;
6484 }
6485 card->dev->priv = card;
6486 card->orig_hard_header = card->dev->hard_header;
6487 card->dev->type = qeth_get_arphdr_type(card->info.type,
6488 card->info.link_type);
6489 card->dev->init = qeth_netdev_init;
6490 return 0;
6491out:
6492 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6493 return rc;
6494}
6495
6496static int
6497qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6498 unsigned long data)
6499{
6500 struct qeth_ipa_cmd *cmd;
6501
6502 QETH_DBF_TEXT(trace,4,"defadpcb");
6503
6504 cmd = (struct qeth_ipa_cmd *) data;
6505 if (cmd->hdr.return_code == 0){
6506 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6507 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6508 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6509#ifdef CONFIG_QETH_IPV6
6510 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6511 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6512#endif
6513 }
6514 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6515 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6516 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6517 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6518 }
6519 return 0;
6520}
6521
6522static int
6523qeth_default_setadapterparms_cb(struct qeth_card *card,
6524 struct qeth_reply *reply,
6525 unsigned long data)
6526{
6527 struct qeth_ipa_cmd *cmd;
6528
6529 QETH_DBF_TEXT(trace,4,"defadpcb");
6530
6531 cmd = (struct qeth_ipa_cmd *) data;
6532 if (cmd->hdr.return_code == 0)
6533 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6534 return 0;
6535}
6536
6c951b90
FP		 6537
6538
1da177e4
LT		 6539static int
6540qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6541 unsigned long data)
6542{
6543 struct qeth_ipa_cmd *cmd;
6544
6545 QETH_DBF_TEXT(trace,3,"quyadpcb");
6546
6547 cmd = (struct qeth_ipa_cmd *) data;
6548 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6549 card->info.link_type =
6550 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6551 card->options.adp.supported_funcs =
6552 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6553 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6554}
6555
6556static int
6557qeth_query_setadapterparms(struct qeth_card *card)
6558{
6559 int rc;
6560 struct qeth_cmd_buffer *iob;
6561
6562 QETH_DBF_TEXT(trace,3,"queryadp");
6563 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6564 sizeof(struct qeth_ipacmd_setadpparms));
6565 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6566 return rc;
6567}
6568
6569static int
6570qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6571 struct qeth_reply *reply,
6572 unsigned long data)
6573{
6574 struct qeth_ipa_cmd *cmd;
6575
6576 QETH_DBF_TEXT(trace,4,"chgmaccb");
6577
6578 cmd = (struct qeth_ipa_cmd *) data;
e08d88cc 6579 if (!card->options.layer2 || card->info.guestlan ||
e82b0f2c 6580 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
e08d88cc
FP		 6581 memcpy(card->dev->dev_addr,
6582 &cmd->data.setadapterparms.data.change_addr.addr,
6583 OSA_ADDR_LEN);
6584 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6585 }
1da177e4
LT		 6586 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6587 return 0;
6588}
6589
6590static int
6591qeth_setadpparms_change_macaddr(struct qeth_card *card)
6592{
6593 int rc;
6594 struct qeth_cmd_buffer *iob;
6595 struct qeth_ipa_cmd *cmd;
6596
6597 QETH_DBF_TEXT(trace,4,"chgmac");
6598
6599 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6600 sizeof(struct qeth_ipacmd_setadpparms));
6601 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6602 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6603 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6604 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6605 card->dev->dev_addr, OSA_ADDR_LEN);
6606 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6607 NULL);
6608 return rc;
6609}
6610
6611static int
6612qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6613{
6614 int rc;
6615 struct qeth_cmd_buffer *iob;
6616 struct qeth_ipa_cmd *cmd;
6617
6618 QETH_DBF_TEXT(trace,4,"adpmode");
6619
6620 iob = qeth_get_adapter_cmd(card, command,
6621 sizeof(struct qeth_ipacmd_setadpparms));
6622 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6623 cmd->data.setadapterparms.data.mode = mode;
6624 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6625 NULL);
6626 return rc;
6627}
6628
4d284cac 6629static int
1da177e4
LT		 6630qeth_setadapter_hstr(struct qeth_card *card)
6631{
6632 int rc;
6633
6634 QETH_DBF_TEXT(trace,4,"adphstr");
6635
6636 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6637 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6638 card->options.broadcast_mode);
6639 if (rc)
6640 PRINT_WARN("couldn't set broadcast mode on "
6641 "device %s: x%x\n",
6642 CARD_BUS_ID(card), rc);
6643 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6644 card->options.macaddr_mode);
6645 if (rc)
6646 PRINT_WARN("couldn't set macaddr mode on "
6647 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6648 return rc;
6649 }
6650 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6651 PRINT_WARN("set adapter parameters not available "
6652 "to set broadcast mode, using ALLRINGS "
6653 "on device %s:\n", CARD_BUS_ID(card));
6654 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6655 PRINT_WARN("set adapter parameters not available "
6656 "to set macaddr mode, using NONCANONICAL "
6657 "on device %s:\n", CARD_BUS_ID(card));
6658 return 0;
6659}
6660
6661static int
6662qeth_setadapter_parms(struct qeth_card *card)
6663{
6664 int rc;
6665
6666 QETH_DBF_TEXT(setup, 2, "setadprm");
6667
6668 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6669 PRINT_WARN("set adapter parameters not supported "
6670 "on device %s.\n",
6671 CARD_BUS_ID(card));
6672 QETH_DBF_TEXT(setup, 2, " notsupp");
6673 return 0;
6674 }
6675 rc = qeth_query_setadapterparms(card);
6676 if (rc) {
6677 PRINT_WARN("couldn't set adapter parameters on device %s: "
6678 "x%x\n", CARD_BUS_ID(card), rc);
6679 return rc;
6680 }
6681 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6682 rc = qeth_setadpparms_change_macaddr(card);
6683 if (rc)
6684 PRINT_WARN("couldn't get MAC address on "
6685 "device %s: x%x\n",
6686 CARD_BUS_ID(card), rc);
6687 }
6688
6689 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6690 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6691 rc = qeth_setadapter_hstr(card);
6692
6693 return rc;
6694}
6695
6696static int
6697qeth_layer2_initialize(struct qeth_card *card)
6698{
6699 int rc = 0;
6700
6701
6702 QETH_DBF_TEXT(setup, 2, "doL2init");
6703 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6704
6c951b90
FP		 6705 rc = qeth_query_setadapterparms(card);
6706 if (rc) {
6707 PRINT_WARN("could not query adapter parameters on device %s: "
6708 "x%x\n", CARD_BUS_ID(card), rc);
6709 }
6710
1da177e4
LT		 6711 rc = qeth_setadpparms_change_macaddr(card);
6712 if (rc) {
6713 PRINT_WARN("couldn't get MAC address on "
6714 "device %s: x%x\n",
6715 CARD_BUS_ID(card), rc);
6716 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6717 return rc;
6718 }
6719 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6720
6721 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6722 if (rc)
6723 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6724 return 0;
6725}
6726
6727
6728static int
6729qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6730 enum qeth_prot_versions prot)
6731{
6732 int rc;
6733 struct qeth_cmd_buffer *iob;
6734
6735 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6736 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6737
6738 return rc;
6739}
6740
6741static int
6742qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6743{
6744 int rc;
6745
6746 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6747
6748 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6749 return rc;
6750}
6751
6752static int
6753qeth_send_stoplan(struct qeth_card *card)
6754{
6755 int rc = 0;
6756
6757 /*
6758 * TODO: according to the IPA format document page 14,
6759 * TCP/IP (we!) never issue a STOPLAN
6760 * is this right ?!?
6761 */
6762 QETH_DBF_TEXT(trace, 2, "stoplan");
6763
6764 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6765 return rc;
6766}
6767
6768static int
6769qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6770 unsigned long data)
6771{
6772 struct qeth_ipa_cmd *cmd;
6773
6774 QETH_DBF_TEXT(setup, 2, "qipasscb");
6775
6776 cmd = (struct qeth_ipa_cmd *) data;
6777 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6778 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6779 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
9123e0d7
UB		 6780 /* Disable IPV6 support hard coded for Hipersockets */
6781 if(card->info.type == QETH_CARD_TYPE_IQD)
6782 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
1da177e4
LT		 6783 } else {
6784#ifdef CONFIG_QETH_IPV6
6785 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6786 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6787#endif
6788 }
6789 QETH_DBF_TEXT(setup, 2, "suppenbl");
6790 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6791 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6792 return 0;
6793}
6794
6795static int
6796qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6797{
6798 int rc;
6799 struct qeth_cmd_buffer *iob;
6800
6801 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6802 if (card->options.layer2) {
6803 QETH_DBF_TEXT(setup, 2, "noprmly2");
6804 return -EPERM;
6805 }
6806
6807 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6808 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6809 return rc;
6810}
6811
6812static struct qeth_cmd_buffer *
6813qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6814 __u16 cmd_code, __u16 len,
6815 enum qeth_prot_versions prot)
6816{
6817 struct qeth_cmd_buffer *iob;
6818 struct qeth_ipa_cmd *cmd;
6819
6820 QETH_DBF_TEXT(trace,4,"getasscm");
6821 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6822
6823 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6824 cmd->data.setassparms.hdr.assist_no = ipa_func;
6825 cmd->data.setassparms.hdr.length = 8 + len;
6826 cmd->data.setassparms.hdr.command_code = cmd_code;
6827 cmd->data.setassparms.hdr.return_code = 0;
6828 cmd->data.setassparms.hdr.seq_no = 0;
6829
6830 return iob;
6831}
6832
6833static int
6834qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6835 __u16 len, long data,
6836 int (*reply_cb)
6837 (struct qeth_card *,struct qeth_reply *,unsigned long),
6838 void *reply_param)
6839{
6840 int rc;
6841 struct qeth_ipa_cmd *cmd;
6842
6843 QETH_DBF_TEXT(trace,4,"sendassp");
6844
6845 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6846 if (len <= sizeof(__u32))
6847 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1380fee2 6848 else /* (len > sizeof(__u32)) */
1da177e4
LT		 6849 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6850
6851 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6852 return rc;
6853}
6854
6855#ifdef CONFIG_QETH_IPV6
6856static int
6857qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6858 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6859
6860{
6861 int rc;
6862 struct qeth_cmd_buffer *iob;
6863
6864 QETH_DBF_TEXT(trace,4,"simassp6");
6865 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6866 0, QETH_PROT_IPV6);
6867 rc = qeth_send_setassparms(card, iob, 0, 0,
6868 qeth_default_setassparms_cb, NULL);
6869 return rc;
6870}
6871#endif
6872
6873static int
6874qeth_send_simple_setassparms(struct qeth_card *card,
6875 enum qeth_ipa_funcs ipa_func,
6876 __u16 cmd_code, long data)
6877{
6878 int rc;
6879 int length = 0;
6880 struct qeth_cmd_buffer *iob;
6881
6882 QETH_DBF_TEXT(trace,4,"simassp4");
6883 if (data)
6884 length = sizeof(__u32);
6885 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6886 length, QETH_PROT_IPV4);
6887 rc = qeth_send_setassparms(card, iob, length, data,
6888 qeth_default_setassparms_cb, NULL);
6889 return rc;
6890}
6891
4d284cac 6892static int
1da177e4
LT		 6893qeth_start_ipa_arp_processing(struct qeth_card *card)
6894{
6895 int rc;
6896
6897 QETH_DBF_TEXT(trace,3,"ipaarp");
6898
6899 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6900 PRINT_WARN("ARP processing not supported "
6901 "on %s!\n", QETH_CARD_IFNAME(card));
6902 return 0;
6903 }
6904 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6905 IPA_CMD_ASS_START, 0);
6906 if (rc) {
6907 PRINT_WARN("Could not start ARP processing "
6908 "assist on %s: 0x%x\n",
6909 QETH_CARD_IFNAME(card), rc);
6910 }
6911 return rc;
6912}
6913
6914static int
6915qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6916{
6917 int rc;
6918
6919 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6920
6921 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6922 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6923 QETH_CARD_IFNAME(card));
6924 return -EOPNOTSUPP;
6925 }
6926
6927 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6928 IPA_CMD_ASS_START, 0);
6929 if (rc) {
6930 PRINT_WARN("Could not start Hardware IP fragmentation "
6931 "assist on %s: 0x%x\n",
6932 QETH_CARD_IFNAME(card), rc);
6933 } else
6934 PRINT_INFO("Hardware IP fragmentation enabled \n");
6935 return rc;
6936}
6937
6938static int
6939qeth_start_ipa_source_mac(struct qeth_card *card)
6940{
6941 int rc;
6942
6943 QETH_DBF_TEXT(trace,3,"stsrcmac");
6944
6945 if (!card->options.fake_ll)
6946 return -EOPNOTSUPP;
6947
6948 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6949 PRINT_INFO("Inbound source address not "
6950 "supported on %s\n", QETH_CARD_IFNAME(card));
6951 return -EOPNOTSUPP;
6952 }
6953
6954 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6955 IPA_CMD_ASS_START, 0);
6956 if (rc)
6957 PRINT_WARN("Could not start inbound source "
6958 "assist on %s: 0x%x\n",
6959 QETH_CARD_IFNAME(card), rc);
6960 return rc;
6961}
6962
6963static int
6964qeth_start_ipa_vlan(struct qeth_card *card)
6965{
6966 int rc = 0;
6967
6968 QETH_DBF_TEXT(trace,3,"strtvlan");
6969
6970#ifdef CONFIG_QETH_VLAN
6971 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6972 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6973 return -EOPNOTSUPP;
6974 }
6975
6976 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6977 IPA_CMD_ASS_START,0);
6978 if (rc) {
6979 PRINT_WARN("Could not start vlan "
6980 "assist on %s: 0x%x\n",
6981 QETH_CARD_IFNAME(card), rc);
6982 } else {
6983 PRINT_INFO("VLAN enabled \n");
6984 card->dev->features |=
6985 NETIF_F_HW_VLAN_FILTER |
6986 NETIF_F_HW_VLAN_TX |
6987 NETIF_F_HW_VLAN_RX;
6988 }
6989#endif /* QETH_VLAN */
6990 return rc;
6991}
6992
6993static int
6994qeth_start_ipa_multicast(struct qeth_card *card)
6995{
6996 int rc;
6997
6998 QETH_DBF_TEXT(trace,3,"stmcast");
6999
7000 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7001 PRINT_WARN("Multicast not supported on %s\n",
7002 QETH_CARD_IFNAME(card));
7003 return -EOPNOTSUPP;
7004 }
7005
7006 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7007 IPA_CMD_ASS_START,0);
7008 if (rc) {
7009 PRINT_WARN("Could not start multicast "
7010 "assist on %s: rc=%i\n",
7011 QETH_CARD_IFNAME(card), rc);
7012 } else {
7013 PRINT_INFO("Multicast enabled\n");
7014 card->dev->flags |= IFF_MULTICAST;
7015 }
7016 return rc;
7017}
7018
7019#ifdef CONFIG_QETH_IPV6
7020static int
7021qeth_softsetup_ipv6(struct qeth_card *card)
7022{
7023 int rc;
7024
7025 QETH_DBF_TEXT(trace,3,"softipv6");
7026
1da177e4
LT		 7027 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7028 if (rc) {
7029 PRINT_ERR("IPv6 startlan failed on %s\n",
7030 QETH_CARD_IFNAME(card));
7031 return rc;
7032 }
1da177e4
LT		 7033 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7034 if (rc) {
7035 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7036 QETH_CARD_IFNAME(card));
7037 return rc;
7038 }
7039 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7040 IPA_CMD_ASS_START, 3);
7041 if (rc) {
7042 PRINT_WARN("IPv6 start assist (version 4) failed "
7043 "on %s: 0x%x\n",
7044 QETH_CARD_IFNAME(card), rc);
7045 return rc;
7046 }
7047 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7048 IPA_CMD_ASS_START);
7049 if (rc) {
7050 PRINT_WARN("IPV6 start assist (version 6) failed "
7051 "on %s: 0x%x\n",
7052 QETH_CARD_IFNAME(card), rc);
7053 return rc;
7054 }
7055 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7056 IPA_CMD_ASS_START);
7057 if (rc) {
7058 PRINT_WARN("Could not enable passthrough "
7059 "on %s: 0x%x\n",
7060 QETH_CARD_IFNAME(card), rc);
7061 return rc;
7062 }
7063 PRINT_INFO("IPV6 enabled \n");
7064 return 0;
7065}
7066
7067#endif
7068
7069static int
7070qeth_start_ipa_ipv6(struct qeth_card *card)
7071{
7072 int rc = 0;
7073#ifdef CONFIG_QETH_IPV6
7074 QETH_DBF_TEXT(trace,3,"strtipv6");
7075
7076 if (!qeth_is_supported(card, IPA_IPV6)) {
7077 PRINT_WARN("IPv6 not supported on %s\n",
7078 QETH_CARD_IFNAME(card));
7079 return 0;
7080 }
7081 rc = qeth_softsetup_ipv6(card);
7082#endif
7083 return rc ;
7084}
7085
7086static int
7087qeth_start_ipa_broadcast(struct qeth_card *card)
7088{
7089 int rc;
7090
7091 QETH_DBF_TEXT(trace,3,"stbrdcst");
7092 card->info.broadcast_capable = 0;
7093 if (!qeth_is_supported(card, IPA_FILTERING)) {
7094 PRINT_WARN("Broadcast not supported on %s\n",
7095 QETH_CARD_IFNAME(card));
7096 rc = -EOPNOTSUPP;
7097 goto out;
7098 }
7099 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7100 IPA_CMD_ASS_START, 0);
7101 if (rc) {
7102 PRINT_WARN("Could not enable broadcasting filtering "
7103 "on %s: 0x%x\n",
7104 QETH_CARD_IFNAME(card), rc);
7105 goto out;
7106 }
7107
7108 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7109 IPA_CMD_ASS_CONFIGURE, 1);
7110 if (rc) {
7111 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7112 QETH_CARD_IFNAME(card), rc);
7113 goto out;
7114 }
7115 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7116 PRINT_INFO("Broadcast enabled \n");
7117 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7118 IPA_CMD_ASS_ENABLE, 1);
7119 if (rc) {
7120 PRINT_WARN("Could not set up broadcast echo filtering on "
7121 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7122 goto out;
7123 }
7124 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7125out:
7126 if (card->info.broadcast_capable)
7127 card->dev->flags |= IFF_BROADCAST;
7128 else
7129 card->dev->flags &= ~IFF_BROADCAST;
7130 return rc;
7131}
7132
7133static int
7134qeth_send_checksum_command(struct qeth_card *card)
7135{
7136 int rc;
7137
7138 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7139 IPA_CMD_ASS_START, 0);
7140 if (rc) {
7141 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7142 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7143 QETH_CARD_IFNAME(card), rc);
7144 return rc;
7145 }
7146 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7147 IPA_CMD_ASS_ENABLE,
7148 card->info.csum_mask);
7149 if (rc) {
7150 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7151 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7152 QETH_CARD_IFNAME(card), rc);
7153 return rc;
7154 }
7155 return 0;
7156}
7157
7158static int
7159qeth_start_ipa_checksum(struct qeth_card *card)
7160{
7161 int rc = 0;
7162
7163 QETH_DBF_TEXT(trace,3,"strtcsum");
7164
7165 if (card->options.checksum_type == NO_CHECKSUMMING) {
7166 PRINT_WARN("Using no checksumming on %s.\n",
7167 QETH_CARD_IFNAME(card));
7168 return 0;
7169 }
7170 if (card->options.checksum_type == SW_CHECKSUMMING) {
7171 PRINT_WARN("Using SW checksumming on %s.\n",
7172 QETH_CARD_IFNAME(card));
7173 return 0;
7174 }
7175 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7176 PRINT_WARN("Inbound HW Checksumming not "
7177 "supported on %s,\ncontinuing "
7178 "using Inbound SW Checksumming\n",
7179 QETH_CARD_IFNAME(card));
7180 card->options.checksum_type = SW_CHECKSUMMING;
7181 return 0;
7182 }
7183 rc = qeth_send_checksum_command(card);
7184 if (!rc) {
7185 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7186 }
7187 return rc;
7188}
7189
7190static int
7191qeth_start_ipa_tso(struct qeth_card *card)
7192{
7193 int rc;
7194
7195 QETH_DBF_TEXT(trace,3,"sttso");
7196
7197 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7198 PRINT_WARN("Outbound TSO not supported on %s\n",
7199 QETH_CARD_IFNAME(card));
7200 rc = -EOPNOTSUPP;
7201 } else {
7202 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7203 IPA_CMD_ASS_START,0);
7204 if (rc)
7205 PRINT_WARN("Could not start outbound TSO "
7206 "assist on %s: rc=%i\n",
7207 QETH_CARD_IFNAME(card), rc);
7208 else
7209 PRINT_INFO("Outbound TSO enabled\n");
7210 }
7211 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7212 card->options.large_send = QETH_LARGE_SEND_NO;
7213 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7214 }
7215 return rc;
7216}
7217
7218static int
7219qeth_start_ipassists(struct qeth_card *card)
7220{
7221 QETH_DBF_TEXT(trace,3,"strtipas");
7222 qeth_start_ipa_arp_processing(card); /* go on*/
7223 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7224 qeth_start_ipa_source_mac(card); /* go on*/
7225 qeth_start_ipa_vlan(card); /* go on*/
7226 qeth_start_ipa_multicast(card); /* go on*/
7227 qeth_start_ipa_ipv6(card); /* go on*/
7228 qeth_start_ipa_broadcast(card); /* go on*/
7229 qeth_start_ipa_checksum(card); /* go on*/
7230 qeth_start_ipa_tso(card); /* go on*/
7231 return 0;
7232}
7233
7234static int
7235qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7236 enum qeth_prot_versions prot)
7237{
7238 int rc;
7239 struct qeth_ipa_cmd *cmd;
7240 struct qeth_cmd_buffer *iob;
7241
7242 QETH_DBF_TEXT(trace,4,"setroutg");
7243 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7244 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7245 cmd->data.setrtg.type = (type);
7246 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7247
7248 return rc;
7249
7250}
7251
7252static void
7253qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7254 enum qeth_prot_versions prot)
7255{
7256 if (card->info.type == QETH_CARD_TYPE_IQD) {
7257 switch (*type) {
7258 case NO_ROUTER:
7259 case PRIMARY_CONNECTOR:
7260 case SECONDARY_CONNECTOR:
7261 case MULTICAST_ROUTER:
7262 return;
7263 default:
7264 goto out_inval;
7265 }
7266 } else {
7267 switch (*type) {
7268 case NO_ROUTER:
7269 case PRIMARY_ROUTER:
7270 case SECONDARY_ROUTER:
7271 return;
7272 case MULTICAST_ROUTER:
7273 if (qeth_is_ipafunc_supported(card, prot,
7274 IPA_OSA_MC_ROUTER))
7275 return;
7276 default:
7277 goto out_inval;
7278 }
7279 }
7280out_inval:
7281 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7282 "Router status set to 'no router'.\n",
7283 ((*type == PRIMARY_ROUTER)? "primary router" :
7284 (*type == SECONDARY_ROUTER)? "secondary router" :
7285 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7286 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7287 (*type == MULTICAST_ROUTER)? "multicast router" :
7288 "unknown"),
7289 card->dev->name);
7290 *type = NO_ROUTER;
7291}
7292
7293int
7294qeth_setrouting_v4(struct qeth_card *card)
7295{
7296 int rc;
7297
7298 QETH_DBF_TEXT(trace,3,"setrtg4");
7299
7300 qeth_correct_routing_type(card, &card->options.route4.type,
7301 QETH_PROT_IPV4);
7302
7303 rc = qeth_send_setrouting(card, card->options.route4.type,
7304 QETH_PROT_IPV4);
7305 if (rc) {
7306 card->options.route4.type = NO_ROUTER;
7307 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7308 "Type set to 'no router'.\n",
7309 rc, QETH_CARD_IFNAME(card));
7310 }
7311 return rc;
7312}
7313
7314int
7315qeth_setrouting_v6(struct qeth_card *card)
7316{
7317 int rc = 0;
7318
7319 QETH_DBF_TEXT(trace,3,"setrtg6");
7320#ifdef CONFIG_QETH_IPV6
7321
8b98a37c
FP		 7322 if (!qeth_is_supported(card, IPA_IPV6))
7323 return 0;
1da177e4
LT		 7324 qeth_correct_routing_type(card, &card->options.route6.type,
7325 QETH_PROT_IPV6);
7326
1da177e4
LT		 7327 rc = qeth_send_setrouting(card, card->options.route6.type,
7328 QETH_PROT_IPV6);
7329 if (rc) {
7330 card->options.route6.type = NO_ROUTER;
7331 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7332 "Type set to 'no router'.\n",
7333 rc, QETH_CARD_IFNAME(card));
7334 }
7335#endif
7336 return rc;
7337}
7338
7339int
9cb90de8 7340qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
1da177e4
LT		 7341{
7342 int rc = 0;
7343
9cb90de8
FP		 7344 if (card->dev == NULL) {
7345 card->options.large_send = type;
1da177e4 7346 return 0;
9cb90de8 7347 }
b85e1fa1
UB		 7348 if (card->state == CARD_STATE_UP)
7349 netif_tx_disable(card->dev);
9cb90de8 7350 card->options.large_send = type;
1da177e4
LT		 7351 switch (card->options.large_send) {
7352 case QETH_LARGE_SEND_EDDP:
7353 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7354 break;
7355 case QETH_LARGE_SEND_TSO:
7356 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7357 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7358 } else {
7359 PRINT_WARN("TSO not supported on %s. "
7360 "large_send set to 'no'.\n",
7361 card->dev->name);
7362 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7363 card->options.large_send = QETH_LARGE_SEND_NO;
7364 rc = -EOPNOTSUPP;
7365 }
7366 break;
7367 default: /* includes QETH_LARGE_SEND_NO */
7368 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7369 break;
7370 }
b85e1fa1
UB		 7371 if (card->state == CARD_STATE_UP)
7372 netif_wake_queue(card->dev);
1da177e4
LT		 7373 return rc;
7374}
7375
7376/*
7377 * softsetup card: init IPA stuff
7378 */
7379static int
7380qeth_softsetup_card(struct qeth_card *card)
7381{
7382 int rc;
7383
7384 QETH_DBF_TEXT(setup, 2, "softsetp");
7385
7386 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7387 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7388 if (rc == 0xe080){
7389 PRINT_WARN("LAN on card %s if offline! "
7390 "Continuing softsetup.\n",
7391 CARD_BUS_ID(card));
7392 card->lan_online = 0;
7393 } else
7394 return rc;
7395 } else
7396 card->lan_online = 1;
500f83ab
UB		 7397 if (card->info.type==QETH_CARD_TYPE_OSN)
7398 goto out;
66cc5d5a 7399 qeth_set_large_send(card, card->options.large_send);
1da177e4
LT		 7400 if (card->options.layer2) {
7401 card->dev->features |=
7402 NETIF_F_HW_VLAN_FILTER |
7403 NETIF_F_HW_VLAN_TX |
7404 NETIF_F_HW_VLAN_RX;
7405 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7406 card->info.broadcast_capable=1;
7407 if ((rc = qeth_layer2_initialize(card))) {
7408 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7409 return rc;
7410 }
7411#ifdef CONFIG_QETH_VLAN
7412 qeth_layer2_process_vlans(card, 0);
7413#endif
7414 goto out;
7415 }
1da177e4
LT		 7416 if ((rc = qeth_setadapter_parms(card)))
7417 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7418 if ((rc = qeth_start_ipassists(card)))
7419 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7420 if ((rc = qeth_setrouting_v4(card)))
7421 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7422 if ((rc = qeth_setrouting_v6(card)))
7423 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7424out:
b85e1fa1 7425 netif_tx_disable(card->dev);
1da177e4
LT		 7426 return 0;
7427}
7428
7429#ifdef CONFIG_QETH_IPV6
7430static int
7431qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7432 unsigned long data)
7433{
7434 struct qeth_ipa_cmd *cmd;
7435
7436 cmd = (struct qeth_ipa_cmd *) data;
7437 if (cmd->hdr.return_code == 0)
7438 card->info.unique_id = *((__u16 *)
7439 &cmd->data.create_destroy_addr.unique_id[6]);
7440 else {
7441 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7442 UNIQUE_ID_NOT_BY_CARD;
7443 PRINT_WARN("couldn't get a unique id from the card on device "
7444 "%s (result=x%x), using default id. ipv6 "
7445 "autoconfig on other lpars may lead to duplicate "
7446 "ip addresses. please use manually "
7447 "configured ones.\n",
7448 CARD_BUS_ID(card), cmd->hdr.return_code);
7449 }
7450 return 0;
7451}
7452#endif
7453
7454static int
7455qeth_put_unique_id(struct qeth_card *card)
7456{
7457
7458 int rc = 0;
7459#ifdef CONFIG_QETH_IPV6
7460 struct qeth_cmd_buffer *iob;
7461 struct qeth_ipa_cmd *cmd;
7462
7463 QETH_DBF_TEXT(trace,2,"puniqeid");
7464
7465 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7466 UNIQUE_ID_NOT_BY_CARD)
7467 return -1;
7468 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7469 QETH_PROT_IPV6);
7470 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7471 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7472 card->info.unique_id;
7473 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7474 card->dev->dev_addr, OSA_ADDR_LEN);
7475 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7476#else
7477 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7478 UNIQUE_ID_NOT_BY_CARD;
7479#endif
7480 return rc;
7481}
7482
7483/**
7484 * Clear IP List
7485 */
7486static void
7487qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7488{
7489 struct qeth_ipaddr *addr, *tmp;
7490 unsigned long flags;
7491
7492 QETH_DBF_TEXT(trace,4,"clearip");
7493 spin_lock_irqsave(&card->ip_lock, flags);
7494 /* clear todo list */
7495 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7496 list_del(&addr->entry);
7497 kfree(addr);
7498 }
7499
7500 while (!list_empty(&card->ip_list)) {
7501 addr = list_entry(card->ip_list.next,
7502 struct qeth_ipaddr, entry);
7503 list_del_init(&addr->entry);
7504 if (clean) {
7505 spin_unlock_irqrestore(&card->ip_lock, flags);
7506 qeth_deregister_addr_entry(card, addr);
7507 spin_lock_irqsave(&card->ip_lock, flags);
7508 }
7509 if (!recover || addr->is_multicast) {
7510 kfree(addr);
7511 continue;
7512 }
7513 list_add_tail(&addr->entry, card->ip_tbd_list);
7514 }
7515 spin_unlock_irqrestore(&card->ip_lock, flags);
7516}
7517
7518static void
7519qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7520 int clear_start_mask)
7521{
7522 unsigned long flags;
7523
7524 spin_lock_irqsave(&card->thread_mask_lock, flags);
7525 card->thread_allowed_mask = threads;
7526 if (clear_start_mask)
7527 card->thread_start_mask &= threads;
7528 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7529 wake_up(&card->wait_q);
7530}
7531
4d284cac 7532static int
1da177e4
LT		 7533qeth_threads_running(struct qeth_card *card, unsigned long threads)
7534{
7535 unsigned long flags;
7536 int rc = 0;
7537
7538 spin_lock_irqsave(&card->thread_mask_lock, flags);
7539 rc = (card->thread_running_mask & threads);
7540 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7541 return rc;
7542}
7543
7544static int
7545qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7546{
7547 return wait_event_interruptible(card->wait_q,
7548 qeth_threads_running(card, threads) == 0);
7549}
7550
7551static int
05e08a2a 7552qeth_stop_card(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7553{
7554 int rc = 0;
7555
7556 QETH_DBF_TEXT(setup ,2,"stopcard");
7557 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7558
7559 qeth_set_allowed_threads(card, 0, 1);
7560 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7561 return -ERESTARTSYS;
7562 if (card->read.state == CH_STATE_UP &&
7563 card->write.state == CH_STATE_UP &&
7564 (card->state == CARD_STATE_UP)) {
e82b0f2c 7565 if (recovery_mode &&
500f83ab 7566 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7567 qeth_stop(card->dev);
7568 } else {
7569 rtnl_lock();
7570 dev_close(card->dev);
7571 rtnl_unlock();
7572 }
1da177e4
LT		 7573 if (!card->use_hard_stop) {
7574 __u8 *mac = &card->dev->dev_addr[0];
7575 rc = qeth_layer2_send_delmac(card, mac);
7576 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7577 if ((rc = qeth_send_stoplan(card)))
7578 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7579 }
7580 card->state = CARD_STATE_SOFTSETUP;
7581 }
7582 if (card->state == CARD_STATE_SOFTSETUP) {
7583#ifdef CONFIG_QETH_VLAN
7584 if (card->options.layer2)
7585 qeth_layer2_process_vlans(card, 1);
7586#endif
7587 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7588 qeth_clear_ipacmd_list(card);
7589 card->state = CARD_STATE_HARDSETUP;
7590 }
7591 if (card->state == CARD_STATE_HARDSETUP) {
7592 if ((!card->use_hard_stop) &&
7593 (!card->options.layer2))
7594 if ((rc = qeth_put_unique_id(card)))
7595 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7596 qeth_qdio_clear_card(card, 0);
7597 qeth_clear_qdio_buffers(card);
7598 qeth_clear_working_pool_list(card);
7599 card->state = CARD_STATE_DOWN;
7600 }
7601 if (card->state == CARD_STATE_DOWN) {
7602 qeth_clear_cmd_buffers(&card->read);
7603 qeth_clear_cmd_buffers(&card->write);
7604 }
7605 card->use_hard_stop = 0;
7606 return rc;
7607}
7608
7609
7610static int
7611qeth_get_unique_id(struct qeth_card *card)
7612{
7613 int rc = 0;
7614#ifdef CONFIG_QETH_IPV6
7615 struct qeth_cmd_buffer *iob;
7616 struct qeth_ipa_cmd *cmd;
7617
7618 QETH_DBF_TEXT(setup, 2, "guniqeid");
7619
7620 if (!qeth_is_supported(card,IPA_IPV6)) {
7621 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7622 UNIQUE_ID_NOT_BY_CARD;
7623 return 0;
7624 }
7625
7626 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7627 QETH_PROT_IPV6);
7628 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7629 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7630 card->info.unique_id;
7631
7632 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7633#else
7634 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7635 UNIQUE_ID_NOT_BY_CARD;
7636#endif
7637 return rc;
7638}
7639static void
7640qeth_print_status_with_portname(struct qeth_card *card)
7641{
7642 char dbf_text[15];
7643 int i;
7644
7645 sprintf(dbf_text, "%s", card->info.portname + 1);
7646 for (i = 0; i < 8; i++)
7647 dbf_text[i] =
7648 (char) _ebcasc[(__u8) dbf_text[i]];
7649 dbf_text[8] = 0;
7650 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7651 "with link type %s (portname: %s)\n",
7652 CARD_RDEV_ID(card),
7653 CARD_WDEV_ID(card),
7654 CARD_DDEV_ID(card),
7655 qeth_get_cardname(card),
7656 (card->info.mcl_level[0]) ? " (level: " : "",
7657 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7658 (card->info.mcl_level[0]) ? ")" : "",
7659 qeth_get_cardname_short(card),
7660 dbf_text);
7661
7662}
7663
7664static void
7665qeth_print_status_no_portname(struct qeth_card *card)
7666{
7667 if (card->info.portname[0])
7668 printk("qeth: Device %s/%s/%s is a%s "
7669 "card%s%s%s\nwith link type %s "
7670 "(no portname needed by interface).\n",
7671 CARD_RDEV_ID(card),
7672 CARD_WDEV_ID(card),
7673 CARD_DDEV_ID(card),
7674 qeth_get_cardname(card),
7675 (card->info.mcl_level[0]) ? " (level: " : "",
7676 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7677 (card->info.mcl_level[0]) ? ")" : "",
7678 qeth_get_cardname_short(card));
7679 else
7680 printk("qeth: Device %s/%s/%s is a%s "
7681 "card%s%s%s\nwith link type %s.\n",
7682 CARD_RDEV_ID(card),
7683 CARD_WDEV_ID(card),
7684 CARD_DDEV_ID(card),
7685 qeth_get_cardname(card),
7686 (card->info.mcl_level[0]) ? " (level: " : "",
7687 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7688 (card->info.mcl_level[0]) ? ")" : "",
7689 qeth_get_cardname_short(card));
7690}
7691
7692static void
7693qeth_print_status_message(struct qeth_card *card)
7694{
7695 switch (card->info.type) {
7696 case QETH_CARD_TYPE_OSAE:
7697 /* VM will use a non-zero first character
7698 * to indicate a HiperSockets like reporting
7699 * of the level OSA sets the first character to zero
7700 * */
7701 if (!card->info.mcl_level[0]) {
7702 sprintf(card->info.mcl_level,"%02x%02x",
7703 card->info.mcl_level[2],
7704 card->info.mcl_level[3]);
7705
7706 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7707 break;
7708 }
7709 /* fallthrough */
7710 case QETH_CARD_TYPE_IQD:
7711 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7712 card->info.mcl_level[0]];
7713 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7714 card->info.mcl_level[1]];
7715 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7716 card->info.mcl_level[2]];
7717 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7718 card->info.mcl_level[3]];
7719 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7720 break;
7721 default:
7722 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7723 }
7724 if (card->info.portname_required)
7725 qeth_print_status_with_portname(card);
7726 else
7727 qeth_print_status_no_portname(card);
7728}
7729
7730static int
7731qeth_register_netdev(struct qeth_card *card)
7732{
7733 QETH_DBF_TEXT(setup, 3, "regnetd");
e82b0f2c 7734 if (card->dev->reg_state != NETREG_UNINITIALIZED)
1da177e4 7735 return 0;
1da177e4
LT		 7736 /* sysfs magic */
7737 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7738 return register_netdev(card->dev);
7739}
7740
7741static void
05e08a2a 7742qeth_start_again(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7743{
7744 QETH_DBF_TEXT(setup ,2, "startag");
7745
e82b0f2c 7746 if (recovery_mode &&
500f83ab 7747 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7748 qeth_open(card->dev);
7749 } else {
7750 rtnl_lock();
7751 dev_open(card->dev);
7752 rtnl_unlock();
7753 }
1da177e4
LT		 7754 /* this also sets saved unicast addresses */
7755 qeth_set_multicast_list(card->dev);
7756}
7757
7758
7759/* Layer 2 specific stuff */
7760#define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7761 if (card->options.option == value) { \
7762 PRINT_ERR("%s not supported with layer 2 " \
7763 "functionality, ignoring option on read" \
7764 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7765 card->options.option = reset_value; \
7766 }
7767#define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7768 if (card->options.option != value) { \
7769 PRINT_ERR("%s not supported with layer 2 " \
7770 "functionality, ignoring option on read" \
7771 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7772 card->options.option = reset_value; \
7773 }
7774
7775
7776static void qeth_make_parameters_consistent(struct qeth_card *card)
7777{
7778
500f83ab
UB		 7779 if (card->options.layer2 == 0)
7780 return;
7781 if (card->info.type == QETH_CARD_TYPE_OSN)
7782 return;
7783 if (card->info.type == QETH_CARD_TYPE_IQD) {
7784 PRINT_ERR("Device %s does not support layer 2 functionality." \
7785 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7786 card->options.layer2 = 0;
7787 return;
7788 }
7789 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7790 "Routing options are");
1da177e4 7791#ifdef CONFIG_QETH_IPV6
500f83ab
UB		 7792 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7793 "Routing options are");
1da177e4 7794#endif
500f83ab
UB		 7795 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7796 QETH_CHECKSUM_DEFAULT,
7797 "Checksumming options are");
7798 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7799 QETH_TR_BROADCAST_ALLRINGS,
7800 "Broadcast mode options are");
7801 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7802 QETH_TR_MACADDR_NONCANONICAL,
7803 "Canonical MAC addr options are");
7804 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7805 "Broadcast faking options are");
7806 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7807 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7808 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
1da177e4
LT		 7809}
7810
7811
7812static int
05e08a2a 7813__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1da177e4
LT		 7814{
7815 struct qeth_card *card = gdev->dev.driver_data;
7816 int rc = 0;
7817 enum qeth_card_states recover_flag;
7818
7819 BUG_ON(!card);
7820 QETH_DBF_TEXT(setup ,2, "setonlin");
7821 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7822
7823 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7824 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7825 PRINT_WARN("set_online of card %s interrupted by user!\n",
7826 CARD_BUS_ID(card));
7827 return -ERESTARTSYS;
7828 }
7829
7830 recover_flag = card->state;
7831 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7832 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7833 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7834 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7835 return -EIO;
7836 }
7837
500f83ab 7838 qeth_make_parameters_consistent(card);
1da177e4
LT		 7839
7840 if ((rc = qeth_hardsetup_card(card))){
7841 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7842 goto out_remove;
7843 }
7844 card->state = CARD_STATE_HARDSETUP;
7845
7846 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7847 rc = qeth_get_unique_id(card);
7848
7849 if (rc && card->options.layer2 == 0) {
7850 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7851 goto out_remove;
7852 }
7853 qeth_print_status_message(card);
7854 if ((rc = qeth_register_netdev(card))){
7855 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7856 goto out_remove;
7857 }
7858 if ((rc = qeth_softsetup_card(card))){
7859 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7860 goto out_remove;
7861 }
1da177e4
LT		 7862
7863 if ((rc = qeth_init_qdio_queues(card))){
7864 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7865 goto out_remove;
7866 }
09d2d38a 7867 card->state = CARD_STATE_SOFTSETUP;
4965e97f
FP		 7868 netif_carrier_on(card->dev);
7869
1da177e4
LT		 7870 qeth_set_allowed_threads(card, 0xffffffff, 0);
7871 if (recover_flag == CARD_STATE_RECOVER)
05e08a2a 7872 qeth_start_again(card, recovery_mode);
1da177e4
LT		 7873 qeth_notify_processes();
7874 return 0;
7875out_remove:
7876 card->use_hard_stop = 1;
05e08a2a 7877 qeth_stop_card(card, 0);
1da177e4
LT		 7878 ccw_device_set_offline(CARD_DDEV(card));
7879 ccw_device_set_offline(CARD_WDEV(card));
7880 ccw_device_set_offline(CARD_RDEV(card));
7881 if (recover_flag == CARD_STATE_RECOVER)
7882 card->state = CARD_STATE_RECOVER;
7883 else
7884 card->state = CARD_STATE_DOWN;
7885 return -ENODEV;
7886}
7887
05e08a2a
FP		 7888static int
7889qeth_set_online(struct ccwgroup_device *gdev)
7890{
7891 return __qeth_set_online(gdev, 0);
7892}
7893
1da177e4 7894static struct ccw_device_id qeth_ids[] = {
d2c993d8
HC		 7895 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7896 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7897 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
1da177e4
LT		 7898 {},
7899};
7900MODULE_DEVICE_TABLE(ccw, qeth_ids);
7901
7902struct device *qeth_root_dev = NULL;
7903
7904struct ccwgroup_driver qeth_ccwgroup_driver = {
7905 .owner = THIS_MODULE,
7906 .name = "qeth",
7907 .driver_id = 0xD8C5E3C8,
7908 .probe = qeth_probe_device,
7909 .remove = qeth_remove_device,
7910 .set_online = qeth_set_online,
7911 .set_offline = qeth_set_offline,
7912};
7913
7914struct ccw_driver qeth_ccw_driver = {
7915 .name = "qeth",
7916 .ids = qeth_ids,
7917 .probe = ccwgroup_probe_ccwdev,
7918 .remove = ccwgroup_remove_ccwdev,
7919};
7920
7921
7922static void
7923qeth_unregister_dbf_views(void)
7924{
7925 if (qeth_dbf_setup)
7926 debug_unregister(qeth_dbf_setup);
7927 if (qeth_dbf_qerr)
7928 debug_unregister(qeth_dbf_qerr);
7929 if (qeth_dbf_sense)
7930 debug_unregister(qeth_dbf_sense);
7931 if (qeth_dbf_misc)
7932 debug_unregister(qeth_dbf_misc);
7933 if (qeth_dbf_data)
7934 debug_unregister(qeth_dbf_data);
7935 if (qeth_dbf_control)
7936 debug_unregister(qeth_dbf_control);
7937 if (qeth_dbf_trace)
7938 debug_unregister(qeth_dbf_trace);
7939}
7940static int
7941qeth_register_dbf_views(void)
7942{
7943 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
66a464db 7944 QETH_DBF_SETUP_PAGES,
1da177e4
LT		 7945 QETH_DBF_SETUP_NR_AREAS,
7946 QETH_DBF_SETUP_LEN);
7947 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
66a464db 7948 QETH_DBF_MISC_PAGES,
1da177e4
LT		 7949 QETH_DBF_MISC_NR_AREAS,
7950 QETH_DBF_MISC_LEN);
7951 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
66a464db 7952 QETH_DBF_DATA_PAGES,
1da177e4
LT		 7953 QETH_DBF_DATA_NR_AREAS,
7954 QETH_DBF_DATA_LEN);
7955 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
66a464db 7956 QETH_DBF_CONTROL_PAGES,
1da177e4
LT		 7957 QETH_DBF_CONTROL_NR_AREAS,
7958 QETH_DBF_CONTROL_LEN);
7959 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
66a464db 7960 QETH_DBF_SENSE_PAGES,
1da177e4
LT		 7961 QETH_DBF_SENSE_NR_AREAS,
7962 QETH_DBF_SENSE_LEN);
7963 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
66a464db 7964 QETH_DBF_QERR_PAGES,
1da177e4
LT		 7965 QETH_DBF_QERR_NR_AREAS,
7966 QETH_DBF_QERR_LEN);
7967 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
66a464db 7968 QETH_DBF_TRACE_PAGES,
1da177e4
LT		 7969 QETH_DBF_TRACE_NR_AREAS,
7970 QETH_DBF_TRACE_LEN);
7971
7972 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
7973 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
7974 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
7975 (qeth_dbf_trace == NULL)) {
7976 qeth_unregister_dbf_views();
7977 return -ENOMEM;
7978 }
7979 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7980 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7981
7982 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7983 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7984
7985 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7986 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7987
7988 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7989 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7990
7991 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
7992 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
7993
7994 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
7995 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
7996
7997 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
7998 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
7999
8000 return 0;
8001}
8002
8003#ifdef CONFIG_QETH_IPV6
8004extern struct neigh_table arp_tbl;
8005static struct neigh_ops *arp_direct_ops;
8006static int (*qeth_old_arp_constructor) (struct neighbour *);
8007
8008static struct neigh_ops arp_direct_ops_template = {
8009 .family = AF_INET,
1da177e4
LT		 8010 .solicit = NULL,
8011 .error_report = NULL,
8012 .output = dev_queue_xmit,
8013 .connected_output = dev_queue_xmit,
8014 .hh_output = dev_queue_xmit,
8015 .queue_xmit = dev_queue_xmit
8016};
8017
8018static int
8019qeth_arp_constructor(struct neighbour *neigh)
8020{
8021 struct net_device *dev = neigh->dev;
8022 struct in_device *in_dev;
8023 struct neigh_parms *parms;
8024 struct qeth_card *card;
8025
8026 card = qeth_get_card_from_dev(dev);
8027 if (card == NULL)
8028 goto out;
8029 if((card->options.layer2) ||
8030 (card->dev->hard_header == qeth_fake_header))
8031 goto out;
8032
8033 rcu_read_lock();
e5ed6399 8034 in_dev = __in_dev_get_rcu(dev);
1da177e4
LT		 8035 if (in_dev == NULL) {
8036 rcu_read_unlock();
8037 return -EINVAL;
8038 }
8039
8040 parms = in_dev->arp_parms;
8041 __neigh_parms_put(neigh->parms);
8042 neigh->parms = neigh_parms_clone(parms);
8043 rcu_read_unlock();
8044
fd683222 8045 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
1da177e4
LT		 8046 neigh->nud_state = NUD_NOARP;
8047 neigh->ops = arp_direct_ops;
8048 neigh->output = neigh->ops->queue_xmit;
8049 return 0;
8050out:
8051 return qeth_old_arp_constructor(neigh);
8052}
8053#endif /*CONFIG_QETH_IPV6*/
8054
8055/*
8056 * IP address takeover related functions
8057 */
8058static void
8059qeth_clear_ipato_list(struct qeth_card *card)
8060{
8061 struct qeth_ipato_entry *ipatoe, *tmp;
8062 unsigned long flags;
8063
8064 spin_lock_irqsave(&card->ip_lock, flags);
8065 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8066 list_del(&ipatoe->entry);
8067 kfree(ipatoe);
8068 }
8069 spin_unlock_irqrestore(&card->ip_lock, flags);
8070}
8071
8072int
8073qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8074{
8075 struct qeth_ipato_entry *ipatoe;
8076 unsigned long flags;
8077 int rc = 0;
8078
8079 QETH_DBF_TEXT(trace, 2, "addipato");
8080 spin_lock_irqsave(&card->ip_lock, flags);
8081 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8082 if (ipatoe->proto != new->proto)
8083 continue;
8084 if (!memcmp(ipatoe->addr, new->addr,
8085 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8086 (ipatoe->mask_bits == new->mask_bits)){
8087 PRINT_WARN("ipato entry already exists!\n");
8088 rc = -EEXIST;
8089 break;
8090 }
8091 }
8092 if (!rc) {
8093 list_add_tail(&new->entry, &card->ipato.entries);
8094 }
8095 spin_unlock_irqrestore(&card->ip_lock, flags);
8096 return rc;
8097}
8098
8099void
8100qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8101 u8 *addr, int mask_bits)
8102{
8103 struct qeth_ipato_entry *ipatoe, *tmp;
8104 unsigned long flags;
8105
8106 QETH_DBF_TEXT(trace, 2, "delipato");
8107 spin_lock_irqsave(&card->ip_lock, flags);
8108 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8109 if (ipatoe->proto != proto)
8110 continue;
8111 if (!memcmp(ipatoe->addr, addr,
8112 (proto == QETH_PROT_IPV4)? 4:16) &&
8113 (ipatoe->mask_bits == mask_bits)){
8114 list_del(&ipatoe->entry);
8115 kfree(ipatoe);
8116 }
8117 }
8118 spin_unlock_irqrestore(&card->ip_lock, flags);
8119}
8120
4d284cac 8121static void
1da177e4
LT		 8122qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8123{
8124 int i, j;
8125 u8 octet;
8126
8127 for (i = 0; i < len; ++i){
8128 octet = addr[i];
8129 for (j = 7; j >= 0; --j){
8130 bits[i*8 + j] = octet & 1;
8131 octet >>= 1;
8132 }
8133 }
8134}
8135
8136static int
8137qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8138{
8139 struct qeth_ipato_entry *ipatoe;
8140 u8 addr_bits[128] = {0, };
8141 u8 ipatoe_bits[128] = {0, };
8142 int rc = 0;
8143
8144 if (!card->ipato.enabled)
8145 return 0;
8146
8147 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8148 (addr->proto == QETH_PROT_IPV4)? 4:16);
8149 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8150 if (addr->proto != ipatoe->proto)
8151 continue;
8152 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8153 (ipatoe->proto==QETH_PROT_IPV4) ?
8154 4:16);
8155 if (addr->proto == QETH_PROT_IPV4)
8156 rc = !memcmp(addr_bits, ipatoe_bits,
8157 min(32, ipatoe->mask_bits));
8158 else
8159 rc = !memcmp(addr_bits, ipatoe_bits,
8160 min(128, ipatoe->mask_bits));
8161 if (rc)
8162 break;
8163 }
8164 /* invert? */
8165 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8166 rc = !rc;
8167 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8168 rc = !rc;
8169
8170 return rc;
8171}
8172
8173/*
8174 * VIPA related functions
8175 */
8176int
8177qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8178 const u8 *addr)
8179{
8180 struct qeth_ipaddr *ipaddr;
8181 unsigned long flags;
8182 int rc = 0;
8183
8184 ipaddr = qeth_get_addr_buffer(proto);
8185 if (ipaddr){
8186 if (proto == QETH_PROT_IPV4){
8187 QETH_DBF_TEXT(trace, 2, "addvipa4");
8188 memcpy(&ipaddr->u.a4.addr, addr, 4);
8189 ipaddr->u.a4.mask = 0;
8190#ifdef CONFIG_QETH_IPV6
8191 } else if (proto == QETH_PROT_IPV6){
8192 QETH_DBF_TEXT(trace, 2, "addvipa6");
8193 memcpy(&ipaddr->u.a6.addr, addr, 16);
8194 ipaddr->u.a6.pfxlen = 0;
8195#endif
8196 }
8197 ipaddr->type = QETH_IP_TYPE_VIPA;
8198 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8199 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8200 } else
8201 return -ENOMEM;
8202 spin_lock_irqsave(&card->ip_lock, flags);
8203 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8204 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8205 rc = -EEXIST;
8206 spin_unlock_irqrestore(&card->ip_lock, flags);
8207 if (rc){
8208 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8209 return rc;
8210 }
8211 if (!qeth_add_ip(card, ipaddr))
8212 kfree(ipaddr);
ee2db684 8213 qeth_set_ip_addr_list(card);
1da177e4
LT		 8214 return rc;
8215}
8216
8217void
8218qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8219 const u8 *addr)
8220{
8221 struct qeth_ipaddr *ipaddr;
8222
8223 ipaddr = qeth_get_addr_buffer(proto);
8224 if (ipaddr){
8225 if (proto == QETH_PROT_IPV4){
8226 QETH_DBF_TEXT(trace, 2, "delvipa4");
8227 memcpy(&ipaddr->u.a4.addr, addr, 4);
8228 ipaddr->u.a4.mask = 0;
8229#ifdef CONFIG_QETH_IPV6
8230 } else if (proto == QETH_PROT_IPV6){
8231 QETH_DBF_TEXT(trace, 2, "delvipa6");
8232 memcpy(&ipaddr->u.a6.addr, addr, 16);
8233 ipaddr->u.a6.pfxlen = 0;
8234#endif
8235 }
8236 ipaddr->type = QETH_IP_TYPE_VIPA;
8237 } else
8238 return;
8239 if (!qeth_delete_ip(card, ipaddr))
8240 kfree(ipaddr);
ee2db684 8241 qeth_set_ip_addr_list(card);
1da177e4
LT		 8242}
8243
8244/*
8245 * proxy ARP related functions
8246 */
8247int
8248qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8249 const u8 *addr)
8250{
8251 struct qeth_ipaddr *ipaddr;
8252 unsigned long flags;
8253 int rc = 0;
8254
8255 ipaddr = qeth_get_addr_buffer(proto);
8256 if (ipaddr){
8257 if (proto == QETH_PROT_IPV4){
8258 QETH_DBF_TEXT(trace, 2, "addrxip4");
8259 memcpy(&ipaddr->u.a4.addr, addr, 4);
8260 ipaddr->u.a4.mask = 0;
8261#ifdef CONFIG_QETH_IPV6
8262 } else if (proto == QETH_PROT_IPV6){
8263 QETH_DBF_TEXT(trace, 2, "addrxip6");
8264 memcpy(&ipaddr->u.a6.addr, addr, 16);
8265 ipaddr->u.a6.pfxlen = 0;
8266#endif
8267 }
8268 ipaddr->type = QETH_IP_TYPE_RXIP;
8269 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8270 ipaddr->del_flags = 0;
8271 } else
8272 return -ENOMEM;
8273 spin_lock_irqsave(&card->ip_lock, flags);
8274 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8275 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8276 rc = -EEXIST;
8277 spin_unlock_irqrestore(&card->ip_lock, flags);
8278 if (rc){
8279 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8280 return rc;
8281 }
8282 if (!qeth_add_ip(card, ipaddr))
8283 kfree(ipaddr);
ee2db684 8284 qeth_set_ip_addr_list(card);
1da177e4
LT		 8285 return 0;
8286}
8287
8288void
8289qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8290 const u8 *addr)
8291{
8292 struct qeth_ipaddr *ipaddr;
8293
8294 ipaddr = qeth_get_addr_buffer(proto);
8295 if (ipaddr){
8296 if (proto == QETH_PROT_IPV4){
8297 QETH_DBF_TEXT(trace, 2, "addrxip4");
8298 memcpy(&ipaddr->u.a4.addr, addr, 4);
8299 ipaddr->u.a4.mask = 0;
8300#ifdef CONFIG_QETH_IPV6
8301 } else if (proto == QETH_PROT_IPV6){
8302 QETH_DBF_TEXT(trace, 2, "addrxip6");
8303 memcpy(&ipaddr->u.a6.addr, addr, 16);
8304 ipaddr->u.a6.pfxlen = 0;
8305#endif
8306 }
8307 ipaddr->type = QETH_IP_TYPE_RXIP;
8308 } else
8309 return;
8310 if (!qeth_delete_ip(card, ipaddr))
8311 kfree(ipaddr);
ee2db684 8312 qeth_set_ip_addr_list(card);
1da177e4
LT		 8313}
8314
8315/**
8316 * IP event handler
8317 */
8318static int
8319qeth_ip_event(struct notifier_block *this,
8320 unsigned long event,void *ptr)
8321{
8322 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8323 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8324 struct qeth_ipaddr *addr;
8325 struct qeth_card *card;
8326
8327 QETH_DBF_TEXT(trace,3,"ipevent");
8328 card = qeth_get_card_from_dev(dev);
8329 if (!card)
8330 return NOTIFY_DONE;
8331 if (card->options.layer2)
8332 return NOTIFY_DONE;
8333
8334 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8335 if (addr != NULL) {
8336 addr->u.a4.addr = ifa->ifa_address;
8337 addr->u.a4.mask = ifa->ifa_mask;
8338 addr->type = QETH_IP_TYPE_NORMAL;
8339 } else
8340 goto out;
8341
8342 switch(event) {
8343 case NETDEV_UP:
8344 if (!qeth_add_ip(card, addr))
8345 kfree(addr);
8346 break;
8347 case NETDEV_DOWN:
8348 if (!qeth_delete_ip(card, addr))
8349 kfree(addr);
8350 break;
8351 default:
8352 break;
8353 }
ee2db684 8354 qeth_set_ip_addr_list(card);
1da177e4
LT		 8355out:
8356 return NOTIFY_DONE;
8357}
8358
8359static struct notifier_block qeth_ip_notifier = {
8360 qeth_ip_event,
d2c993d8 8361 NULL,
1da177e4
LT		 8362};
8363
8364#ifdef CONFIG_QETH_IPV6
8365/**
8366 * IPv6 event handler
8367 */
8368static int
8369qeth_ip6_event(struct notifier_block *this,
8370 unsigned long event,void *ptr)
8371{
8372
8373 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8374 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8375 struct qeth_ipaddr *addr;
8376 struct qeth_card *card;
8377
8378 QETH_DBF_TEXT(trace,3,"ip6event");
8379
8380 card = qeth_get_card_from_dev(dev);
8381 if (!card)
8382 return NOTIFY_DONE;
8383 if (!qeth_is_supported(card, IPA_IPV6))
8384 return NOTIFY_DONE;
8385
8386 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8387 if (addr != NULL) {
8388 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8389 addr->u.a6.pfxlen = ifa->prefix_len;
8390 addr->type = QETH_IP_TYPE_NORMAL;
8391 } else
8392 goto out;
8393
8394 switch(event) {
8395 case NETDEV_UP:
8396 if (!qeth_add_ip(card, addr))
8397 kfree(addr);
8398 break;
8399 case NETDEV_DOWN:
8400 if (!qeth_delete_ip(card, addr))
8401 kfree(addr);
8402 break;
8403 default:
8404 break;
8405 }
ee2db684 8406 qeth_set_ip_addr_list(card);
1da177e4
LT		 8407out:
8408 return NOTIFY_DONE;
8409}
8410
8411static struct notifier_block qeth_ip6_notifier = {
8412 qeth_ip6_event,
d2c993d8 8413 NULL,
1da177e4
LT		 8414};
8415#endif
8416
8417static int
66aea23f 8418__qeth_reboot_event_card(struct device *dev, void *data)
1da177e4 8419{
1da177e4
LT		 8420 struct qeth_card *card;
8421
66aea23f
CH		 8422 card = (struct qeth_card *) dev->driver_data;
8423 qeth_clear_ip_list(card, 0, 0);
8424 qeth_qdio_clear_card(card, 0);
8425 return 0;
8426}
8427
8428static int
8429qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8430{
d7cf0d57 8431 int ret;
66aea23f 8432
d7cf0d57
HC		 8433 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8434 __qeth_reboot_event_card);
8435 return ret ? NOTIFY_BAD : NOTIFY_DONE;
1da177e4
LT		 8436}
8437
8438
8439static struct notifier_block qeth_reboot_notifier = {
8440 qeth_reboot_event,
d2c993d8 8441 NULL,
1da177e4
LT		 8442};
8443
8444static int
8445qeth_register_notifiers(void)
8446{
8447 int r;
8448
8449 QETH_DBF_TEXT(trace,5,"regnotif");
8450 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8451 return r;
8452 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8453 goto out_reboot;
8454#ifdef CONFIG_QETH_IPV6
8455 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8456 goto out_ipv4;
8457#endif
8458 return 0;
8459
8460#ifdef CONFIG_QETH_IPV6
8461out_ipv4:
8462 unregister_inetaddr_notifier(&qeth_ip_notifier);
8463#endif
8464out_reboot:
8465 unregister_reboot_notifier(&qeth_reboot_notifier);
8466 return r;
8467}
8468
8469/**
8470 * unregister all event notifiers
8471 */
8472static void
8473qeth_unregister_notifiers(void)
8474{
8475
8476 QETH_DBF_TEXT(trace,5,"unregnot");
8477 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8478 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8479#ifdef CONFIG_QETH_IPV6
8480 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8481#endif /* QETH_IPV6 */
8482
8483}
8484
8485#ifdef CONFIG_QETH_IPV6
8486static int
8487qeth_ipv6_init(void)
8488{
8489 qeth_old_arp_constructor = arp_tbl.constructor;
3d8f3f3c 8490 write_lock_bh(&arp_tbl.lock);
1da177e4 8491 arp_tbl.constructor = qeth_arp_constructor;
3d8f3f3c 8492 write_unlock_bh(&arp_tbl.lock);
1da177e4
LT		 8493
8494 arp_direct_ops = (struct neigh_ops*)
8495 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8496 if (!arp_direct_ops)
8497 return -ENOMEM;
8498
8499 memcpy(arp_direct_ops, &arp_direct_ops_template,
8500 sizeof(struct neigh_ops));
8501
8502 return 0;
8503}
8504
8505static void
8506qeth_ipv6_uninit(void)
8507{
3d8f3f3c 8508 write_lock_bh(&arp_tbl.lock);
1da177e4 8509 arp_tbl.constructor = qeth_old_arp_constructor;
3d8f3f3c 8510 write_unlock_bh(&arp_tbl.lock);
1da177e4
LT		 8511 kfree(arp_direct_ops);
8512}
8513#endif /* CONFIG_QETH_IPV6 */
8514
8515static void
8516qeth_sysfs_unregister(void)
8517{
8b98a37c 8518 s390_root_dev_unregister(qeth_root_dev);
1da177e4
LT		 8519 qeth_remove_driver_attributes();
8520 ccw_driver_unregister(&qeth_ccw_driver);
8521 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
1da177e4 8522}
8b98a37c 8523
1da177e4
LT		 8524/**
8525 * register qeth at sysfs
8526 */
8527static int
8528qeth_sysfs_register(void)
8529{
8b98a37c 8530 int rc;
1da177e4
LT		 8531
8532 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8533 if (rc)
8b98a37c
FP		 8534 goto out;
8535
1da177e4
LT		 8536 rc = ccw_driver_register(&qeth_ccw_driver);
8537 if (rc)
8b98a37c
FP		 8538 goto out_ccw_driver;
8539
1da177e4
LT		 8540 rc = qeth_create_driver_attributes();
8541 if (rc)
8b98a37c
FP		 8542 goto out_qeth_attr;
8543
1da177e4 8544 qeth_root_dev = s390_root_dev_register("qeth");
8b98a37c
FP		 8545 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8546 if (!rc)
8547 goto out;
8548
8549 qeth_remove_driver_attributes();
8550out_qeth_attr:
8551 ccw_driver_unregister(&qeth_ccw_driver);
8552out_ccw_driver:
8553 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8554out:
8555 return rc;
1da177e4
LT		 8556}
8557
8558/***
8559 * init function
8560 */
8561static int __init
8562qeth_init(void)
8563{
8b98a37c 8564 int rc;
1da177e4 8565
e018ba1f 8566 PRINT_INFO("loading %s\n", version);
1da177e4
LT		 8567
8568 INIT_LIST_HEAD(&qeth_card_list.list);
8569 INIT_LIST_HEAD(&qeth_notify_list);
8570 spin_lock_init(&qeth_notify_lock);
8571 rwlock_init(&qeth_card_list.rwlock);
8572
8b98a37c
FP		 8573 rc = qeth_register_dbf_views();
8574 if (rc)
1da177e4 8575 goto out_err;
8b98a37c
FP		 8576
8577 rc = qeth_sysfs_register();
8578 if (rc)
8579 goto out_dbf;
1da177e4
LT		 8580
8581#ifdef CONFIG_QETH_IPV6
8b98a37c
FP		 8582 rc = qeth_ipv6_init();
8583 if (rc) {
8584 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
1da177e4
LT		 8585 goto out_sysfs;
8586 }
8587#endif /* QETH_IPV6 */
8b98a37c
FP		 8588 rc = qeth_register_notifiers();
8589 if (rc)
1da177e4 8590 goto out_ipv6;
8b98a37c
FP		 8591 rc = qeth_create_procfs_entries();
8592 if (rc)
1da177e4
LT		 8593 goto out_notifiers;
8594
8595 return rc;
8596
8597out_notifiers:
8598 qeth_unregister_notifiers();
8599out_ipv6:
8600#ifdef CONFIG_QETH_IPV6
8601 qeth_ipv6_uninit();
1da177e4 8602out_sysfs:
8b98a37c 8603#endif /* QETH_IPV6 */
1da177e4 8604 qeth_sysfs_unregister();
8b98a37c 8605out_dbf:
1da177e4
LT		 8606 qeth_unregister_dbf_views();
8607out_err:
8b98a37c 8608 PRINT_ERR("Initialization failed with code %d\n", rc);
1da177e4
LT		 8609 return rc;
8610}
8611
8612static void
8613__exit qeth_exit(void)
8614{
8615 struct qeth_card *card, *tmp;
8616 unsigned long flags;
8617
8618 QETH_DBF_TEXT(trace,1, "cleanup.");
8619
8620 /*
8621 * Weed would not need to clean up our devices here, because the
8622 * common device layer calls qeth_remove_device for each device
8623 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8624 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8625 * qeth_remove_device called by the common device layer would otherwise
8626 * do a "hard" shutdown (card->use_hard_stop is set to one in
8627 * qeth_remove_device).
8628 */
8629again:
8630 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8631 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8632 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8633 qeth_set_offline(card->gdev);
8634 qeth_remove_device(card->gdev);
8635 goto again;
8636 }
8637 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8638#ifdef CONFIG_QETH_IPV6
8639 qeth_ipv6_uninit();
8640#endif
8641 qeth_unregister_notifiers();
8642 qeth_remove_procfs_entries();
8643 qeth_sysfs_unregister();
8644 qeth_unregister_dbf_views();
8645 printk("qeth: removed\n");
8646}
8647
500f83ab
UB		 8648EXPORT_SYMBOL(qeth_osn_register);
8649EXPORT_SYMBOL(qeth_osn_deregister);
8650EXPORT_SYMBOL(qeth_osn_assist);
1da177e4
LT		 8651module_init(qeth_init);
8652module_exit(qeth_exit);
1387780f 8653MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
1da177e4
LT		 8654MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8655 "Copyright 2000,2003 IBM Corporation\n");
8656
8657MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)