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s390: qeth driver fixes: packet socket
[deliverable/linux.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
474 tasklet_schedule(&channel->irq_tasklet);
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
654static inline int
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
798static inline void
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
885static inline int
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
923static inline int
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
953static int
954qeth_register_ip_addresses(void *ptr)
955{
956 struct qeth_card *card;
957
958 card = (struct qeth_card *) ptr;
959 daemonize("qeth_reg_ip");
960 QETH_DBF_TEXT(trace,4,"regipth1");
961 if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
962 return 0;
963 QETH_DBF_TEXT(trace,4,"regipth2");
964 qeth_set_ip_addr_list(card);
965 qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
966 return 0;
967}
968
6c951b90
FP		 969/*
970 * Drive the SET_PROMISC_MODE thread
971 */
972static int
973qeth_set_promisc_mode(void *ptr)
974{
975 struct qeth_card *card = (struct qeth_card *) ptr;
976
977 daemonize("qeth_setprm");
978 QETH_DBF_TEXT(trace,4,"setprm1");
979 if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
980 return 0;
981 QETH_DBF_TEXT(trace,4,"setprm2");
982 qeth_setadp_promisc_mode(card);
983 qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
984 return 0;
985}
986
1da177e4
LT		 987static int
988qeth_recover(void *ptr)
989{
990 struct qeth_card *card;
991 int rc = 0;
992
993 card = (struct qeth_card *) ptr;
994 daemonize("qeth_recover");
995 QETH_DBF_TEXT(trace,2,"recover1");
996 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
997 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
998 return 0;
999 QETH_DBF_TEXT(trace,2,"recover2");
1000 PRINT_WARN("Recovery of device %s started ...\n",
1001 CARD_BUS_ID(card));
1002 card->use_hard_stop = 1;
05e08a2a
FP		 1003 __qeth_set_offline(card->gdev,1);
1004 rc = __qeth_set_online(card->gdev,1);
1da177e4
LT		 1005 if (!rc)
1006 PRINT_INFO("Device %s successfully recovered!\n",
1007 CARD_BUS_ID(card));
1008 else
1009 PRINT_INFO("Device %s could not be recovered!\n",
1010 CARD_BUS_ID(card));
1011 /* don't run another scheduled recovery */
1012 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1013 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1014 return 0;
1015}
1016
1017void
1018qeth_schedule_recovery(struct qeth_card *card)
1019{
1020 QETH_DBF_TEXT(trace,2,"startrec");
1da177e4
LT		 1021 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1022 schedule_work(&card->kernel_thread_starter);
1023}
1024
1025static int
1026qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1027{
1028 unsigned long flags;
1029 int rc = 0;
1030
1031 spin_lock_irqsave(&card->thread_mask_lock, flags);
1032 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1033 (u8) card->thread_start_mask,
1034 (u8) card->thread_allowed_mask,
1035 (u8) card->thread_running_mask);
1036 rc = (card->thread_start_mask & thread);
1037 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1038 return rc;
1039}
1040
1041static void
4927b3f7 1042qeth_start_kernel_thread(struct work_struct *work)
1da177e4 1043{
4927b3f7 1044 struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1da177e4
LT		 1045 QETH_DBF_TEXT(trace , 2, "strthrd");
1046
1047 if (card->read.state != CH_STATE_UP &&
1048 card->write.state != CH_STATE_UP)
1049 return;
1050
1051 if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1052 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
6c951b90
FP		 1053 if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1054 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1da177e4
LT		 1055 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1056 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1057}
1058
1059
1060static void
1061qeth_set_intial_options(struct qeth_card *card)
1062{
1063 card->options.route4.type = NO_ROUTER;
1064#ifdef CONFIG_QETH_IPV6
1065 card->options.route6.type = NO_ROUTER;
1066#endif /* QETH_IPV6 */
1067 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1068 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1069 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1070 card->options.fake_broadcast = 0;
1071 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1072 card->options.fake_ll = 0;
500f83ab
UB		 1073 if (card->info.type == QETH_CARD_TYPE_OSN)
1074 card->options.layer2 = 1;
1075 else
1076 card->options.layer2 = 0;
95c78c8b 1077 card->options.performance_stats = 0;
1da177e4
LT		 1078}
1079
1080/**
1081 * initialize channels ,card and all state machines
1082 */
1083static int
1084qeth_setup_card(struct qeth_card *card)
1085{
1086
1087 QETH_DBF_TEXT(setup, 2, "setupcrd");
1088 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1089
1090 card->read.state = CH_STATE_DOWN;
1091 card->write.state = CH_STATE_DOWN;
1092 card->data.state = CH_STATE_DOWN;
1093 card->state = CARD_STATE_DOWN;
1094 card->lan_online = 0;
1095 card->use_hard_stop = 0;
1096 card->dev = NULL;
1097#ifdef CONFIG_QETH_VLAN
1098 spin_lock_init(&card->vlanlock);
1099 card->vlangrp = NULL;
1100#endif
9123e0d7 1101 spin_lock_init(&card->lock);
1da177e4
LT		 1102 spin_lock_init(&card->ip_lock);
1103 spin_lock_init(&card->thread_mask_lock);
1104 card->thread_start_mask = 0;
1105 card->thread_allowed_mask = 0;
1106 card->thread_running_mask = 0;
4927b3f7 1107 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1da177e4
LT		 1108 INIT_LIST_HEAD(&card->ip_list);
1109 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1110 if (!card->ip_tbd_list) {
1111 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1112 return -ENOMEM;
1113 }
1114 INIT_LIST_HEAD(card->ip_tbd_list);
1115 INIT_LIST_HEAD(&card->cmd_waiter_list);
1116 init_waitqueue_head(&card->wait_q);
1117 /* intial options */
1118 qeth_set_intial_options(card);
1119 /* IP address takeover */
1120 INIT_LIST_HEAD(&card->ipato.entries);
1121 card->ipato.enabled = 0;
1122 card->ipato.invert4 = 0;
1123 card->ipato.invert6 = 0;
1124 /* init QDIO stuff */
1125 qeth_init_qdio_info(card);
1126 return 0;
1127}
1128
1129static int
1130is_1920_device (struct qeth_card *card)
1131{
1132 int single_queue = 0;
1133 struct ccw_device *ccwdev;
1134 struct channelPath_dsc {
1135 u8 flags;
1136 u8 lsn;
1137 u8 desc;
1138 u8 chpid;
1139 u8 swla;
1140 u8 zeroes;
1141 u8 chla;
1142 u8 chpp;
1143 } *chp_dsc;
1144
1145 QETH_DBF_TEXT(setup, 2, "chk_1920");
1146
1147 ccwdev = card->data.ccwdev;
1148 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1149 if (chp_dsc != NULL) {
1150 /* CHPP field bit 6 == 1 -> single queue */
1151 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1152 kfree(chp_dsc);
1153 }
1154 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1155 return single_queue;
1156}
1157
1158static int
1159qeth_determine_card_type(struct qeth_card *card)
1160{
1161 int i = 0;
1162
1163 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1164
500f83ab
UB		 1165 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1166 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1da177e4
LT		 1167 while (known_devices[i][4]) {
1168 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1169 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1170 card->info.type = known_devices[i][4];
500f83ab
UB		 1171 card->qdio.no_out_queues = known_devices[i][8];
1172 card->info.is_multicast_different = known_devices[i][9];
1da177e4
LT		 1173 if (is_1920_device(card)) {
1174 PRINT_INFO("Priority Queueing not able "
1175 "due to hardware limitations!\n");
1176 card->qdio.no_out_queues = 1;
1177 card->qdio.default_out_queue = 0;
e82b0f2c 1178 }
1da177e4
LT		 1179 return 0;
1180 }
1181 i++;
1182 }
1183 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1184 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1185 return -ENOENT;
1186}
1187
1188static int
1189qeth_probe_device(struct ccwgroup_device *gdev)
1190{
1191 struct qeth_card *card;
1192 struct device *dev;
1193 unsigned long flags;
1194 int rc;
1195
1196 QETH_DBF_TEXT(setup, 2, "probedev");
1197
1198 dev = &gdev->dev;
1199 if (!get_device(dev))
1200 return -ENODEV;
1201
500f83ab 1202 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
e82b0f2c 1203
1da177e4
LT		 1204 card = qeth_alloc_card();
1205 if (!card) {
1206 put_device(dev);
1207 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1208 return -ENOMEM;
1209 }
1210 card->read.ccwdev = gdev->cdev[0];
1211 card->write.ccwdev = gdev->cdev[1];
1212 card->data.ccwdev = gdev->cdev[2];
1da177e4
LT		 1213 gdev->dev.driver_data = card;
1214 card->gdev = gdev;
1215 gdev->cdev[0]->handler = qeth_irq;
1216 gdev->cdev[1]->handler = qeth_irq;
1217 gdev->cdev[2]->handler = qeth_irq;
1218
500f83ab
UB		 1219 if ((rc = qeth_determine_card_type(card))){
1220 PRINT_WARN("%s: not a valid card type\n", __func__);
1221 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1222 put_device(dev);
1223 qeth_free_card(card);
1224 return rc;
e82b0f2c 1225 }
500f83ab
UB		 1226 if ((rc = qeth_setup_card(card))){
1227 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1da177e4
LT		 1228 put_device(dev);
1229 qeth_free_card(card);
1230 return rc;
1231 }
500f83ab
UB		 1232 rc = qeth_create_device_attributes(dev);
1233 if (rc) {
1da177e4
LT		 1234 put_device(dev);
1235 qeth_free_card(card);
1236 return rc;
1237 }
1238 /* insert into our internal list */
1239 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1240 list_add_tail(&card->list, &qeth_card_list.list);
1241 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1242 return rc;
1243}
1244
1245
1246static int
1247qeth_get_unitaddr(struct qeth_card *card)
1248{
1249 int length;
1250 char *prcd;
1251 int rc;
1252
1253 QETH_DBF_TEXT(setup, 2, "getunit");
1254 rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1255 if (rc) {
1256 PRINT_ERR("read_conf_data for device %s returned %i\n",
1257 CARD_DDEV_ID(card), rc);
1258 return rc;
1259 }
1260 card->info.chpid = prcd[30];
1261 card->info.unit_addr2 = prcd[31];
1262 card->info.cula = prcd[63];
1263 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1264 (prcd[0x11] == _ascebc['M']));
1265 return 0;
1266}
1267
1268static void
1269qeth_init_tokens(struct qeth_card *card)
1270{
1271 card->token.issuer_rm_w = 0x00010103UL;
1272 card->token.cm_filter_w = 0x00010108UL;
1273 card->token.cm_connection_w = 0x0001010aUL;
1274 card->token.ulp_filter_w = 0x0001010bUL;
1275 card->token.ulp_connection_w = 0x0001010dUL;
1276}
1277
1278static inline __u16
1279raw_devno_from_bus_id(char *id)
1280{
1281 id += (strlen(id) - 4);
1282 return (__u16) simple_strtoul(id, &id, 16);
1283}
1284/**
1285 * setup channel
1286 */
1287static void
1288qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1289{
1290 struct qeth_card *card;
1291
1292 QETH_DBF_TEXT(trace, 4, "setupccw");
1293 card = CARD_FROM_CDEV(channel->ccwdev);
1294 if (channel == &card->read)
1295 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1296 else
1297 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1298 channel->ccw.count = len;
1299 channel->ccw.cda = (__u32) __pa(iob);
1300}
1301
1302/**
1303 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1304 */
1305static struct qeth_cmd_buffer *
1306__qeth_get_buffer(struct qeth_channel *channel)
1307{
1308 __u8 index;
1309
1310 QETH_DBF_TEXT(trace, 6, "getbuff");
1311 index = channel->io_buf_no;
1312 do {
1313 if (channel->iob[index].state == BUF_STATE_FREE) {
1314 channel->iob[index].state = BUF_STATE_LOCKED;
1315 channel->io_buf_no = (channel->io_buf_no + 1) %
1316 QETH_CMD_BUFFER_NO;
1317 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1318 return channel->iob + index;
1319 }
1320 index = (index + 1) % QETH_CMD_BUFFER_NO;
1321 } while(index != channel->io_buf_no);
1322
1323 return NULL;
1324}
1325
1326/**
1327 * release command buffer
1328 */
1329static void
1330qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1331{
1332 unsigned long flags;
1333
1334 QETH_DBF_TEXT(trace, 6, "relbuff");
1335 spin_lock_irqsave(&channel->iob_lock, flags);
1336 memset(iob->data, 0, QETH_BUFSIZE);
1337 iob->state = BUF_STATE_FREE;
1338 iob->callback = qeth_send_control_data_cb;
1339 iob->rc = 0;
1340 spin_unlock_irqrestore(&channel->iob_lock, flags);
1341}
1342
1343static struct qeth_cmd_buffer *
1344qeth_get_buffer(struct qeth_channel *channel)
1345{
1346 struct qeth_cmd_buffer *buffer = NULL;
1347 unsigned long flags;
1348
1349 spin_lock_irqsave(&channel->iob_lock, flags);
1350 buffer = __qeth_get_buffer(channel);
1351 spin_unlock_irqrestore(&channel->iob_lock, flags);
1352 return buffer;
1353}
1354
1355static struct qeth_cmd_buffer *
1356qeth_wait_for_buffer(struct qeth_channel *channel)
1357{
1358 struct qeth_cmd_buffer *buffer;
1359 wait_event(channel->wait_q,
1360 ((buffer = qeth_get_buffer(channel)) != NULL));
1361 return buffer;
1362}
1363
1364static void
1365qeth_clear_cmd_buffers(struct qeth_channel *channel)
1366{
1380fee2 1367 int cnt;
1da177e4
LT		 1368
1369 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1370 qeth_release_buffer(channel,&channel->iob[cnt]);
1371 channel->buf_no = 0;
1372 channel->io_buf_no = 0;
1373}
1374
1375/**
1376 * start IDX for read and write channel
1377 */
1378static int
1379qeth_idx_activate_get_answer(struct qeth_channel *channel,
1380 void (*idx_reply_cb)(struct qeth_channel *,
1381 struct qeth_cmd_buffer *))
1382{
1383 struct qeth_cmd_buffer *iob;
1384 unsigned long flags;
1385 int rc;
1386 struct qeth_card *card;
1387
1388 QETH_DBF_TEXT(setup, 2, "idxanswr");
1389 card = CARD_FROM_CDEV(channel->ccwdev);
1390 iob = qeth_get_buffer(channel);
1391 iob->callback = idx_reply_cb;
1392 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1393 channel->ccw.count = QETH_BUFSIZE;
1394 channel->ccw.cda = (__u32) __pa(iob->data);
1395
1396 wait_event(card->wait_q,
973bd993 1397 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1da177e4
LT		 1398 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1399 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1400 rc = ccw_device_start(channel->ccwdev,
1401 &channel->ccw,(addr_t) iob, 0, 0);
1402 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1403
1404 if (rc) {
1405 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1406 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1407 atomic_set(&channel->irq_pending, 0);
1408 wake_up(&card->wait_q);
1409 return rc;
1410 }
1411 rc = wait_event_interruptible_timeout(card->wait_q,
1412 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1413 if (rc == -ERESTARTSYS)
1414 return rc;
1415 if (channel->state != CH_STATE_UP){
1416 rc = -ETIME;
1417 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1418 qeth_clear_cmd_buffers(channel);
1419 } else
1420 rc = 0;
1421 return rc;
1422}
1423
1424static int
1425qeth_idx_activate_channel(struct qeth_channel *channel,
1426 void (*idx_reply_cb)(struct qeth_channel *,
1427 struct qeth_cmd_buffer *))
1428{
1429 struct qeth_card *card;
1430 struct qeth_cmd_buffer *iob;
1431 unsigned long flags;
1432 __u16 temp;
1433 int rc;
1434
1435 card = CARD_FROM_CDEV(channel->ccwdev);
1436
1437 QETH_DBF_TEXT(setup, 2, "idxactch");
1438
1439 iob = qeth_get_buffer(channel);
1440 iob->callback = idx_reply_cb;
1441 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1442 channel->ccw.count = IDX_ACTIVATE_SIZE;
1443 channel->ccw.cda = (__u32) __pa(iob->data);
1444 if (channel == &card->write) {
1445 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1446 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1447 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1448 card->seqno.trans_hdr++;
1449 } else {
1450 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1451 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1452 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1453 }
1454 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1455 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1456 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1457 &card->info.func_level,sizeof(__u16));
1458 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1459 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1460 temp = (card->info.cula << 8) + card->info.unit_addr2;
1461 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1462
1463 wait_event(card->wait_q,
973bd993 1464 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1da177e4
LT		 1465 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1466 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1467 rc = ccw_device_start(channel->ccwdev,
1468 &channel->ccw,(addr_t) iob, 0, 0);
1469 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1470
1471 if (rc) {
1472 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1473 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1474 atomic_set(&channel->irq_pending, 0);
1475 wake_up(&card->wait_q);
1476 return rc;
1477 }
1478 rc = wait_event_interruptible_timeout(card->wait_q,
1479 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1480 if (rc == -ERESTARTSYS)
1481 return rc;
1482 if (channel->state != CH_STATE_ACTIVATING) {
1483 PRINT_WARN("qeth: IDX activate timed out!\n");
1484 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1485 qeth_clear_cmd_buffers(channel);
1486 return -ETIME;
1487 }
1488 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1489}
1490
1491static int
1492qeth_peer_func_level(int level)
1493{
1494 if ((level & 0xff) == 8)
1495 return (level & 0xff) + 0x400;
1496 if (((level >> 8) & 3) == 1)
1497 return (level & 0xff) + 0x200;
1498 return level;
1499}
1500
1501static void
1502qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1503{
1504 struct qeth_card *card;
1505 __u16 temp;
1506
1507 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1508
1509 if (channel->state == CH_STATE_DOWN) {
1510 channel->state = CH_STATE_ACTIVATING;
1511 goto out;
1512 }
1513 card = CARD_FROM_CDEV(channel->ccwdev);
1514
1515 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1516 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1517 "reply\n", CARD_WDEV_ID(card));
1518 goto out;
1519 }
1520 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1521 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1522 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1523 "function level mismatch "
1524 "(sent: 0x%x, received: 0x%x)\n",
1525 CARD_WDEV_ID(card), card->info.func_level, temp);
1526 goto out;
1527 }
1528 channel->state = CH_STATE_UP;
1529out:
1530 qeth_release_buffer(channel, iob);
1531}
1532
1533static int
1534qeth_check_idx_response(unsigned char *buffer)
1535{
1536 if (!buffer)
1537 return 0;
1538
1539 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1540 if ((buffer[2] & 0xc0) == 0xc0) {
1541 PRINT_WARN("received an IDX TERMINATE "
1542 "with cause code 0x%02x%s\n",
1543 buffer[4],
1544 ((buffer[4] == 0x22) ?
1545 " -- try another portname" : ""));
1546 QETH_DBF_TEXT(trace, 2, "ckidxres");
1547 QETH_DBF_TEXT(trace, 2, " idxterm");
1548 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1549 return -EIO;
1550 }
1551 return 0;
1552}
1553
1554static void
1555qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1556{
1557 struct qeth_card *card;
1558 __u16 temp;
1559
1560 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1561 if (channel->state == CH_STATE_DOWN) {
1562 channel->state = CH_STATE_ACTIVATING;
1563 goto out;
1564 }
1565
1566 card = CARD_FROM_CDEV(channel->ccwdev);
1567 if (qeth_check_idx_response(iob->data)) {
1568 goto out;
1569 }
1570 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1571 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1572 "reply\n", CARD_RDEV_ID(card));
1573 goto out;
1574 }
1575
1576/**
1577 * temporary fix for microcode bug
1578 * to revert it,replace OR by AND
1579 */
1580 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1581 (card->info.type == QETH_CARD_TYPE_OSAE) )
1582 card->info.portname_required = 1;
1583
1584 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1585 if (temp != qeth_peer_func_level(card->info.func_level)) {
1586 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1587 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1588 CARD_RDEV_ID(card), card->info.func_level, temp);
1589 goto out;
1590 }
1591 memcpy(&card->token.issuer_rm_r,
1592 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1593 QETH_MPC_TOKEN_LENGTH);
1594 memcpy(&card->info.mcl_level[0],
1595 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1596 channel->state = CH_STATE_UP;
1597out:
1598 qeth_release_buffer(channel,iob);
1599}
1600
1601static int
1602qeth_issue_next_read(struct qeth_card *card)
1603{
1604 int rc;
1605 struct qeth_cmd_buffer *iob;
1606
1607 QETH_DBF_TEXT(trace,5,"issnxrd");
1608 if (card->read.state != CH_STATE_UP)
1609 return -EIO;
1610 iob = qeth_get_buffer(&card->read);
1611 if (!iob) {
1612 PRINT_WARN("issue_next_read failed: no iob available!\n");
1613 return -ENOMEM;
1614 }
1615 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1616 wait_event(card->wait_q,
973bd993 1617 atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1da177e4
LT		 1618 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1619 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1620 (addr_t) iob, 0, 0);
1621 if (rc) {
1622 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1623 atomic_set(&card->read.irq_pending, 0);
1624 qeth_schedule_recovery(card);
1625 wake_up(&card->wait_q);
1626 }
1627 return rc;
1628}
1629
1630static struct qeth_reply *
1631qeth_alloc_reply(struct qeth_card *card)
1632{
1633 struct qeth_reply *reply;
1634
88abaab4 1635 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1da177e4 1636 if (reply){
1da177e4
LT		 1637 atomic_set(&reply->refcnt, 1);
1638 reply->card = card;
1639 };
1640 return reply;
1641}
1642
1643static void
1644qeth_get_reply(struct qeth_reply *reply)
1645{
1646 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1647 atomic_inc(&reply->refcnt);
1648}
1649
1650static void
1651qeth_put_reply(struct qeth_reply *reply)
1652{
1653 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1654 if (atomic_dec_and_test(&reply->refcnt))
1655 kfree(reply);
1656}
1657
1658static void
1659qeth_cmd_timeout(unsigned long data)
1660{
1661 struct qeth_reply *reply, *list_reply, *r;
1662 unsigned long flags;
1663
1664 reply = (struct qeth_reply *) data;
1665 spin_lock_irqsave(&reply->card->lock, flags);
1666 list_for_each_entry_safe(list_reply, r,
1667 &reply->card->cmd_waiter_list, list) {
1668 if (reply == list_reply){
1669 qeth_get_reply(reply);
1670 list_del_init(&reply->list);
1671 spin_unlock_irqrestore(&reply->card->lock, flags);
1672 reply->rc = -ETIME;
1673 reply->received = 1;
1674 wake_up(&reply->wait_q);
1675 qeth_put_reply(reply);
1676 return;
1677 }
1678 }
1679 spin_unlock_irqrestore(&reply->card->lock, flags);
1680}
1681
66cc5d5a 1682
1da177e4
LT		 1683static struct qeth_ipa_cmd *
1684qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1685{
1686 struct qeth_ipa_cmd *cmd = NULL;
1687
1688 QETH_DBF_TEXT(trace,5,"chkipad");
1689 if (IS_IPA(iob->data)){
1690 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1691 if (IS_IPA_REPLY(cmd))
1692 return cmd;
1693 else {
1694 switch (cmd->hdr.command) {
1695 case IPA_CMD_STOPLAN:
1696 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1697 "there is a network problem or "
1698 "someone pulled the cable or "
1699 "disabled the port.\n",
1700 QETH_CARD_IFNAME(card),
1701 card->info.chpid);
1702 card->lan_online = 0;
66cc5d5a
FP		 1703 if (card->dev && netif_carrier_ok(card->dev))
1704 netif_carrier_off(card->dev);
1da177e4
LT		 1705 return NULL;
1706 case IPA_CMD_STARTLAN:
1707 PRINT_INFO("Link reestablished on %s "
1708 "(CHPID 0x%X). Scheduling "
1709 "IP address reset.\n",
1710 QETH_CARD_IFNAME(card),
1711 card->info.chpid);
330b6369 1712 netif_carrier_on(card->dev);
9123e0d7 1713 qeth_schedule_recovery(card);
1da177e4 1714 return NULL;
500f83ab
UB		 1715 case IPA_CMD_MODCCID:
1716 return cmd;
1da177e4
LT		 1717 case IPA_CMD_REGISTER_LOCAL_ADDR:
1718 QETH_DBF_TEXT(trace,3, "irla");
1719 break;
1720 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1721 QETH_DBF_TEXT(trace,3, "urla");
1722 break;
1723 default:
1724 PRINT_WARN("Received data is IPA "
1725 "but not a reply!\n");
1726 break;
1727 }
1728 }
1729 }
1730 return cmd;
1731}
1732
1733/**
1734 * wake all waiting ipa commands
1735 */
1736static void
1737qeth_clear_ipacmd_list(struct qeth_card *card)
1738{
1739 struct qeth_reply *reply, *r;
1740 unsigned long flags;
1741
1742 QETH_DBF_TEXT(trace, 4, "clipalst");
1743
1744 spin_lock_irqsave(&card->lock, flags);
1745 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1746 qeth_get_reply(reply);
1747 reply->rc = -EIO;
1748 reply->received = 1;
1749 list_del_init(&reply->list);
1750 wake_up(&reply->wait_q);
1751 qeth_put_reply(reply);
1752 }
1753 spin_unlock_irqrestore(&card->lock, flags);
1754}
1755
1756static void
1757qeth_send_control_data_cb(struct qeth_channel *channel,
1758 struct qeth_cmd_buffer *iob)
1759{
1760 struct qeth_card *card;
1761 struct qeth_reply *reply, *r;
1762 struct qeth_ipa_cmd *cmd;
1763 unsigned long flags;
1764 int keep_reply;
1765
1766 QETH_DBF_TEXT(trace,4,"sndctlcb");
1767
1768 card = CARD_FROM_CDEV(channel->ccwdev);
1769 if (qeth_check_idx_response(iob->data)) {
1770 qeth_clear_ipacmd_list(card);
1771 qeth_schedule_recovery(card);
1772 goto out;
1773 }
1774
1775 cmd = qeth_check_ipa_data(card, iob);
1776 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1777 goto out;
500f83ab
UB		 1778 /*in case of OSN : check if cmd is set */
1779 if (card->info.type == QETH_CARD_TYPE_OSN &&
1780 cmd &&
1781 cmd->hdr.command != IPA_CMD_STARTLAN &&
1782 card->osn_info.assist_cb != NULL) {
1783 card->osn_info.assist_cb(card->dev, cmd);
1784 goto out;
1785 }
1da177e4
LT		 1786
1787 spin_lock_irqsave(&card->lock, flags);
1788 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1789 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1790 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1791 qeth_get_reply(reply);
1792 list_del_init(&reply->list);
1793 spin_unlock_irqrestore(&card->lock, flags);
1794 keep_reply = 0;
1795 if (reply->callback != NULL) {
1796 if (cmd) {
1797 reply->offset = (__u16)((char*)cmd -
1798 (char *)iob->data);
1799 keep_reply = reply->callback(card,
1800 reply,
1801 (unsigned long)cmd);
500f83ab 1802 } else
1da177e4
LT		 1803 keep_reply = reply->callback(card,
1804 reply,
1805 (unsigned long)iob);
1806 }
1807 if (cmd)
1808 reply->rc = (u16) cmd->hdr.return_code;
1809 else if (iob->rc)
1810 reply->rc = iob->rc;
1811 if (keep_reply) {
1812 spin_lock_irqsave(&card->lock, flags);
1813 list_add_tail(&reply->list,
1814 &card->cmd_waiter_list);
1815 spin_unlock_irqrestore(&card->lock, flags);
1816 } else {
1817 reply->received = 1;
1818 wake_up(&reply->wait_q);
1819 }
1820 qeth_put_reply(reply);
1821 goto out;
1822 }
1823 }
1824 spin_unlock_irqrestore(&card->lock, flags);
1825out:
1826 memcpy(&card->seqno.pdu_hdr_ack,
1827 QETH_PDU_HEADER_SEQ_NO(iob->data),
1828 QETH_SEQ_NO_LENGTH);
1829 qeth_release_buffer(channel,iob);
1830}
1831
500f83ab
UB		 1832static inline void
1833qeth_prepare_control_data(struct qeth_card *card, int len,
1834struct qeth_cmd_buffer *iob)
1835{
1836 qeth_setup_ccw(&card->write,iob->data,len);
1837 iob->callback = qeth_release_buffer;
1838
1839 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1840 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1841 card->seqno.trans_hdr++;
1842 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1843 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1844 card->seqno.pdu_hdr++;
1845 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1846 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1847 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1848}
e82b0f2c 1849
1da177e4
LT		 1850static int
1851qeth_send_control_data(struct qeth_card *card, int len,
1852 struct qeth_cmd_buffer *iob,
1853 int (*reply_cb)
1854 (struct qeth_card *, struct qeth_reply*, unsigned long),
1855 void *reply_param)
1856
1857{
1858 int rc;
1859 unsigned long flags;
500f83ab 1860 struct qeth_reply *reply = NULL;
1da177e4
LT		 1861 struct timer_list timer;
1862
1863 QETH_DBF_TEXT(trace, 2, "sendctl");
1864
1da177e4
LT		 1865 reply = qeth_alloc_reply(card);
1866 if (!reply) {
1867 PRINT_WARN("Could no alloc qeth_reply!\n");
1868 return -ENOMEM;
1869 }
1870 reply->callback = reply_cb;
1871 reply->param = reply_param;
1872 if (card->state == CARD_STATE_DOWN)
1873 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1874 else
1875 reply->seqno = card->seqno.ipa++;
1876 init_timer(&timer);
1877 timer.function = qeth_cmd_timeout;
1878 timer.data = (unsigned long) reply;
1da177e4
LT		 1879 init_waitqueue_head(&reply->wait_q);
1880 spin_lock_irqsave(&card->lock, flags);
1881 list_add_tail(&reply->list, &card->cmd_waiter_list);
1882 spin_unlock_irqrestore(&card->lock, flags);
1883 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1884 wait_event(card->wait_q,
973bd993 1885 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
500f83ab
UB		 1886 qeth_prepare_control_data(card, len, iob);
1887 if (IS_IPA(iob->data))
1888 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1889 else
1890 timer.expires = jiffies + QETH_TIMEOUT;
1da177e4
LT		 1891 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1892 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1893 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1894 (addr_t) iob, 0, 0);
1895 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1896 if (rc){
1897 PRINT_WARN("qeth_send_control_data: "
1898 "ccw_device_start rc = %i\n", rc);
1899 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1900 spin_lock_irqsave(&card->lock, flags);
1901 list_del_init(&reply->list);
1902 qeth_put_reply(reply);
1903 spin_unlock_irqrestore(&card->lock, flags);
1904 qeth_release_buffer(iob->channel, iob);
1905 atomic_set(&card->write.irq_pending, 0);
1906 wake_up(&card->wait_q);
1907 return rc;
1908 }
1909 add_timer(&timer);
1910 wait_event(reply->wait_q, reply->received);
1911 del_timer_sync(&timer);
1912 rc = reply->rc;
1913 qeth_put_reply(reply);
1914 return rc;
1915}
1916
500f83ab
UB		 1917static int
1918qeth_osn_send_control_data(struct qeth_card *card, int len,
1919 struct qeth_cmd_buffer *iob)
1920{
1921 unsigned long flags;
1922 int rc = 0;
1923
1924 QETH_DBF_TEXT(trace, 5, "osndctrd");
1925
1926 wait_event(card->wait_q,
973bd993 1927 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
500f83ab
UB		 1928 qeth_prepare_control_data(card, len, iob);
1929 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1930 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1931 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1932 (addr_t) iob, 0, 0);
1933 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1934 if (rc){
1935 PRINT_WARN("qeth_osn_send_control_data: "
1936 "ccw_device_start rc = %i\n", rc);
1937 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1938 qeth_release_buffer(iob->channel, iob);
1939 atomic_set(&card->write.irq_pending, 0);
1940 wake_up(&card->wait_q);
1941 }
1942 return rc;
e82b0f2c 1943}
500f83ab
UB		 1944
1945static inline void
1946qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1947 char prot_type)
1948{
1949 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1950 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1951 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1952 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1953}
1954
1955static int
1956qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1957 int data_len)
1958{
1959 u16 s1, s2;
1960
4965e97f 1961 QETH_DBF_TEXT(trace,4,"osndipa");
500f83ab
UB		 1962
1963 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1964 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1965 s2 = (u16)data_len;
1966 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1967 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1968 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1969 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1970 return qeth_osn_send_control_data(card, s1, iob);
1971}
e82b0f2c 1972
1da177e4
LT		 1973static int
1974qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1975 int (*reply_cb)
1976 (struct qeth_card *,struct qeth_reply*, unsigned long),
1977 void *reply_param)
1978{
1979 int rc;
1980 char prot_type;
1981
1982 QETH_DBF_TEXT(trace,4,"sendipa");
1983
1da177e4 1984 if (card->options.layer2)
500f83ab
UB		 1985 if (card->info.type == QETH_CARD_TYPE_OSN)
1986 prot_type = QETH_PROT_OSN2;
1987 else
1988 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 1989 else
1990 prot_type = QETH_PROT_TCPIP;
500f83ab 1991 qeth_prepare_ipa_cmd(card,iob,prot_type);
1da177e4
LT		 1992 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1993 reply_cb, reply_param);
1994 return rc;
1995}
1996
1997
1998static int
1999qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2000 unsigned long data)
2001{
2002 struct qeth_cmd_buffer *iob;
2003
2004 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2005
2006 iob = (struct qeth_cmd_buffer *) data;
2007 memcpy(&card->token.cm_filter_r,
2008 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2009 QETH_MPC_TOKEN_LENGTH);
2010 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2011 return 0;
2012}
2013
2014static int
2015qeth_cm_enable(struct qeth_card *card)
2016{
2017 int rc;
2018 struct qeth_cmd_buffer *iob;
2019
2020 QETH_DBF_TEXT(setup,2,"cmenable");
2021
2022 iob = qeth_wait_for_buffer(&card->write);
2023 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2024 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2025 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2026 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2027 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2028
2029 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2030 qeth_cm_enable_cb, NULL);
2031 return rc;
2032}
2033
2034static int
2035qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2036 unsigned long data)
2037{
2038
2039 struct qeth_cmd_buffer *iob;
2040
2041 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2042
2043 iob = (struct qeth_cmd_buffer *) data;
2044 memcpy(&card->token.cm_connection_r,
2045 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2046 QETH_MPC_TOKEN_LENGTH);
2047 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2048 return 0;
2049}
2050
2051static int
2052qeth_cm_setup(struct qeth_card *card)
2053{
2054 int rc;
2055 struct qeth_cmd_buffer *iob;
2056
2057 QETH_DBF_TEXT(setup,2,"cmsetup");
2058
2059 iob = qeth_wait_for_buffer(&card->write);
2060 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2061 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2062 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2063 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2064 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2065 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2066 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2067 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2068 qeth_cm_setup_cb, NULL);
2069 return rc;
2070
2071}
2072
2073static int
2074qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2075 unsigned long data)
2076{
2077
2078 __u16 mtu, framesize;
2079 __u16 len;
2080 __u8 link_type;
2081 struct qeth_cmd_buffer *iob;
2082
2083 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2084
2085 iob = (struct qeth_cmd_buffer *) data;
2086 memcpy(&card->token.ulp_filter_r,
2087 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2088 QETH_MPC_TOKEN_LENGTH);
2089 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2090 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2091 mtu = qeth_get_mtu_outof_framesize(framesize);
2092 if (!mtu) {
2093 iob->rc = -EINVAL;
2094 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2095 return 0;
2096 }
2097 card->info.max_mtu = mtu;
2098 card->info.initial_mtu = mtu;
2099 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2100 } else {
2101 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2102 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2103 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2104 }
2105
2106 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2107 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2108 memcpy(&link_type,
2109 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2110 card->info.link_type = link_type;
2111 } else
2112 card->info.link_type = 0;
2113 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2114 return 0;
2115}
2116
2117static int
2118qeth_ulp_enable(struct qeth_card *card)
2119{
2120 int rc;
2121 char prot_type;
2122 struct qeth_cmd_buffer *iob;
2123
2124 /*FIXME: trace view callbacks*/
2125 QETH_DBF_TEXT(setup,2,"ulpenabl");
2126
2127 iob = qeth_wait_for_buffer(&card->write);
2128 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2129
2130 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2131 (__u8) card->info.portno;
2132 if (card->options.layer2)
500f83ab
UB		 2133 if (card->info.type == QETH_CARD_TYPE_OSN)
2134 prot_type = QETH_PROT_OSN2;
2135 else
2136 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 2137 else
2138 prot_type = QETH_PROT_TCPIP;
2139
2140 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2141 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2142 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2143 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2144 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2145 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2146 card->info.portname, 9);
2147 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2148 qeth_ulp_enable_cb, NULL);
2149 return rc;
2150
2151}
2152
2153static inline __u16
2154__raw_devno_from_bus_id(char *id)
2155{
2156 id += (strlen(id) - 4);
2157 return (__u16) simple_strtoul(id, &id, 16);
2158}
2159
2160static int
2161qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2162 unsigned long data)
2163{
2164 struct qeth_cmd_buffer *iob;
2165
2166 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2167
2168 iob = (struct qeth_cmd_buffer *) data;
2169 memcpy(&card->token.ulp_connection_r,
2170 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2171 QETH_MPC_TOKEN_LENGTH);
2172 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2173 return 0;
2174}
2175
2176static int
2177qeth_ulp_setup(struct qeth_card *card)
2178{
2179 int rc;
2180 __u16 temp;
2181 struct qeth_cmd_buffer *iob;
2182
2183 QETH_DBF_TEXT(setup,2,"ulpsetup");
2184
2185 iob = qeth_wait_for_buffer(&card->write);
2186 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2187
2188 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2189 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2190 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2191 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2192 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2193 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2194
2195 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2196 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2197 temp = (card->info.cula << 8) + card->info.unit_addr2;
2198 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2199 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2200 qeth_ulp_setup_cb, NULL);
2201 return rc;
2202}
2203
2204static inline int
6c6b3e7c
FP		 2205qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2206 unsigned int siga_error, const char *dbftext)
1da177e4 2207{
1da177e4 2208 if (qdio_error || siga_error) {
6c6b3e7c
FP		 2209 QETH_DBF_TEXT(trace, 2, dbftext);
2210 QETH_DBF_TEXT(qerr, 2, dbftext);
1da177e4 2211 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
6c6b3e7c 2212 buf->element[15].flags & 0xff);
1da177e4 2213 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
6c6b3e7c 2214 buf->element[14].flags & 0xff);
1da177e4
LT		 2215 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2216 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
6c6b3e7c 2217 return 1;
1da177e4 2218 }
6c6b3e7c 2219 return 0;
1da177e4
LT		 2220}
2221
2222static inline struct sk_buff *
500f83ab 2223qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
1da177e4
LT		 2224{
2225 struct sk_buff* skb;
500f83ab
UB		 2226 int add_len;
2227
2228 add_len = 0;
2229 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2230 add_len = sizeof(struct qeth_hdr);
1da177e4 2231#ifdef CONFIG_QETH_VLAN
500f83ab
UB		 2232 else
2233 add_len = VLAN_HLEN;
1da177e4 2234#endif
500f83ab
UB		 2235 skb = dev_alloc_skb(length + add_len);
2236 if (skb && add_len)
2237 skb_reserve(skb, add_len);
1da177e4
LT		 2238 return skb;
2239}
2240
2241static inline struct sk_buff *
2242qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2243 struct qdio_buffer_element **__element, int *__offset,
2244 struct qeth_hdr **hdr)
2245{
2246 struct qdio_buffer_element *element = *__element;
2247 int offset = *__offset;
2248 struct sk_buff *skb = NULL;
2249 int skb_len;
2250 void *data_ptr;
2251 int data_len;
2252
2253 QETH_DBF_TEXT(trace,6,"nextskb");
2254 /* qeth_hdr must not cross element boundaries */
2255 if (element->length < offset + sizeof(struct qeth_hdr)){
2256 if (qeth_is_last_sbale(element))
2257 return NULL;
2258 element++;
2259 offset = 0;
2260 if (element->length < sizeof(struct qeth_hdr))
2261 return NULL;
2262 }
2263 *hdr = element->addr + offset;
2264
2265 offset += sizeof(struct qeth_hdr);
2266 if (card->options.layer2)
500f83ab
UB		 2267 if (card->info.type == QETH_CARD_TYPE_OSN)
2268 skb_len = (*hdr)->hdr.osn.pdu_length;
2269 else
2270 skb_len = (*hdr)->hdr.l2.pkt_length;
1da177e4
LT		 2271 else
2272 skb_len = (*hdr)->hdr.l3.length;
2273
2274 if (!skb_len)
2275 return NULL;
2276 if (card->options.fake_ll){
e23dd9cd 2277 if(card->dev->type == ARPHRD_IEEE802_TR){
500f83ab 2278 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
e23dd9cd
FP		 2279 goto no_mem;
2280 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2281 } else {
500f83ab 2282 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
e23dd9cd
FP		 2283 goto no_mem;
2284 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2285 }
500f83ab 2286 } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
1da177e4
LT		 2287 goto no_mem;
2288 data_ptr = element->addr + offset;
2289 while (skb_len) {
2290 data_len = min(skb_len, (int)(element->length - offset));
2291 if (data_len)
2292 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2293 skb_len -= data_len;
2294 if (skb_len){
2295 if (qeth_is_last_sbale(element)){
2296 QETH_DBF_TEXT(trace,4,"unexeob");
2297 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2298 QETH_DBF_TEXT(qerr,2,"unexeob");
2299 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2300 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2301 dev_kfree_skb_any(skb);
2302 card->stats.rx_errors++;
2303 return NULL;
2304 }
2305 element++;
2306 offset = 0;
2307 data_ptr = element->addr;
2308 } else {
2309 offset += data_len;
2310 }
2311 }
2312 *__element = element;
2313 *__offset = offset;
2314 return skb;
2315no_mem:
2316 if (net_ratelimit()){
2317 PRINT_WARN("No memory for packet received on %s.\n",
2318 QETH_CARD_IFNAME(card));
2319 QETH_DBF_TEXT(trace,2,"noskbmem");
2320 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2321 }
2322 card->stats.rx_dropped++;
2323 return NULL;
2324}
2325
ab611487 2326static inline __be16
1da177e4
LT		 2327qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2328{
2329 struct qeth_card *card;
2330 struct ethhdr *eth;
2331
2332 QETH_DBF_TEXT(trace,6,"typtrans");
2333
2334 card = (struct qeth_card *)dev->priv;
2335#ifdef CONFIG_TR
2336 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2337 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2338 return tr_type_trans(skb,dev);
2339#endif /* CONFIG_TR */
2340 skb->mac.raw = skb->data;
2341 skb_pull(skb, ETH_HLEN );
2342 eth = eth_hdr(skb);
2343
2344 if (*eth->h_dest & 1) {
2345 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2346 skb->pkt_type = PACKET_BROADCAST;
2347 else
2348 skb->pkt_type = PACKET_MULTICAST;
2349 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2350 skb->pkt_type = PACKET_OTHERHOST;
2351
2352 if (ntohs(eth->h_proto) >= 1536)
2353 return eth->h_proto;
2354 if (*(unsigned short *) (skb->data) == 0xFFFF)
2355 return htons(ETH_P_802_3);
2356 return htons(ETH_P_802_2);
2357}
2358
2359static inline void
e23dd9cd
FP		 2360qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2361 struct qeth_hdr *hdr)
2362{
2363 struct trh_hdr *fake_hdr;
2364 struct trllc *fake_llc;
2365 struct iphdr *ip_hdr;
2366
2367 QETH_DBF_TEXT(trace,5,"skbfktr");
2368 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2369 /* this is a fake ethernet header */
2370 fake_hdr = (struct trh_hdr *) skb->mac.raw;
2371
2372 /* the destination MAC address */
2373 switch (skb->pkt_type){
2374 case PACKET_MULTICAST:
2375 switch (skb->protocol){
2376#ifdef CONFIG_QETH_IPV6
2377 case __constant_htons(ETH_P_IPV6):
2378 ndisc_mc_map((struct in6_addr *)
2379 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2380 fake_hdr->daddr, card->dev, 0);
2381 break;
2382#endif /* CONFIG_QETH_IPV6 */
2383 case __constant_htons(ETH_P_IP):
2384 ip_hdr = (struct iphdr *)skb->data;
2385 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2386 break;
2387 default:
2388 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2389 }
2390 break;
2391 case PACKET_BROADCAST:
2392 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2393 break;
2394 default:
2395 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2396 }
2397 /* the source MAC address */
2398 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2399 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2400 else
2401 memset(fake_hdr->saddr, 0, TR_ALEN);
2402 fake_hdr->rcf=0;
2403 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2404 fake_llc->dsap = EXTENDED_SAP;
2405 fake_llc->ssap = EXTENDED_SAP;
2406 fake_llc->llc = UI_CMD;
2407 fake_llc->protid[0] = 0;
2408 fake_llc->protid[1] = 0;
2409 fake_llc->protid[2] = 0;
2410 fake_llc->ethertype = ETH_P_IP;
2411}
2412
2413static inline void
2414qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
1da177e4
LT		 2415 struct qeth_hdr *hdr)
2416{
2417 struct ethhdr *fake_hdr;
2418 struct iphdr *ip_hdr;
2419
e23dd9cd
FP		 2420 QETH_DBF_TEXT(trace,5,"skbfketh");
2421 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
1da177e4
LT		 2422 /* this is a fake ethernet header */
2423 fake_hdr = (struct ethhdr *) skb->mac.raw;
2424
2425 /* the destination MAC address */
2426 switch (skb->pkt_type){
2427 case PACKET_MULTICAST:
2428 switch (skb->protocol){
2429#ifdef CONFIG_QETH_IPV6
2430 case __constant_htons(ETH_P_IPV6):
2431 ndisc_mc_map((struct in6_addr *)
2432 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2433 fake_hdr->h_dest, card->dev, 0);
2434 break;
2435#endif /* CONFIG_QETH_IPV6 */
2436 case __constant_htons(ETH_P_IP):
2437 ip_hdr = (struct iphdr *)skb->data;
e23dd9cd 2438 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
1da177e4
LT		 2439 break;
2440 default:
2441 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2442 }
2443 break;
2444 case PACKET_BROADCAST:
2445 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2446 break;
2447 default:
2448 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2449 }
2450 /* the source MAC address */
2451 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2452 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2453 else
2454 memset(fake_hdr->h_source, 0, ETH_ALEN);
2455 /* the protocol */
2456 fake_hdr->h_proto = skb->protocol;
2457}
2458
e23dd9cd
FP		 2459static inline void
2460qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2461 struct qeth_hdr *hdr)
2462{
2463 if (card->dev->type == ARPHRD_IEEE802_TR)
2464 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2465 else
2466 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2467}
2468
95c78c8b 2469static inline void
1da177e4
LT		 2470qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2471 struct qeth_hdr *hdr)
2472{
1da177e4
LT		 2473 skb->pkt_type = PACKET_HOST;
2474 skb->protocol = qeth_type_trans(skb, skb->dev);
2475 if (card->options.checksum_type == NO_CHECKSUMMING)
2476 skb->ip_summed = CHECKSUM_UNNECESSARY;
2477 else
2478 skb->ip_summed = CHECKSUM_NONE;
9123e0d7 2479 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
1da177e4
LT		 2480}
2481
330b6369 2482static inline __u16
1da177e4
LT		 2483qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2484 struct qeth_hdr *hdr)
2485{
330b6369 2486 unsigned short vlan_id = 0;
1da177e4
LT		 2487#ifdef CONFIG_QETH_IPV6
2488 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2489 skb->pkt_type = PACKET_HOST;
2490 skb->protocol = qeth_type_trans(skb, card->dev);
330b6369 2491 return 0;
1da177e4
LT		 2492 }
2493#endif /* CONFIG_QETH_IPV6 */
2494 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2495 ETH_P_IP);
2496 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2497 case QETH_CAST_UNICAST:
2498 skb->pkt_type = PACKET_HOST;
2499 break;
2500 case QETH_CAST_MULTICAST:
2501 skb->pkt_type = PACKET_MULTICAST;
2502 card->stats.multicast++;
2503 break;
2504 case QETH_CAST_BROADCAST:
2505 skb->pkt_type = PACKET_BROADCAST;
2506 card->stats.multicast++;
2507 break;
2508 case QETH_CAST_ANYCAST:
2509 case QETH_CAST_NOCAST:
2510 default:
2511 skb->pkt_type = PACKET_HOST;
2512 }
330b6369
FP		 2513
2514 if (hdr->hdr.l3.ext_flags &
2515 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2516 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2517 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2518 }
2519
1da177e4
LT		 2520 if (card->options.fake_ll)
2521 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2522 else
2523 skb->mac.raw = skb->data;
2524 skb->ip_summed = card->options.checksum_type;
2525 if (card->options.checksum_type == HW_CHECKSUMMING){
2526 if ( (hdr->hdr.l3.ext_flags &
2527 (QETH_HDR_EXT_CSUM_HDR_REQ |
2528 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2529 (QETH_HDR_EXT_CSUM_HDR_REQ |
2530 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2531 skb->ip_summed = CHECKSUM_UNNECESSARY;
2532 else
2533 skb->ip_summed = SW_CHECKSUMMING;
2534 }
330b6369 2535 return vlan_id;
1da177e4
LT		 2536}
2537
2538static inline void
2539qeth_process_inbound_buffer(struct qeth_card *card,
2540 struct qeth_qdio_buffer *buf, int index)
2541{
2542 struct qdio_buffer_element *element;
2543 struct sk_buff *skb;
2544 struct qeth_hdr *hdr;
2545 int offset;
2546 int rxrc;
2547 __u16 vlan_tag = 0;
2548
2549 /* get first element of current buffer */
2550 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2551 offset = 0;
09d2d38a
FP		 2552 if (card->options.performance_stats)
2553 card->perf_stats.bufs_rec++;
1da177e4
LT		 2554 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2555 &offset, &hdr))) {
2556 skb->dev = card->dev;
2557 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
95c78c8b 2558 qeth_layer2_rebuild_skb(card, skb, hdr);
e82b0f2c 2559 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
330b6369 2560 vlan_tag = qeth_rebuild_skb(card, skb, hdr);
500f83ab
UB		 2561 else { /*in case of OSN*/
2562 skb_push(skb, sizeof(struct qeth_hdr));
2563 memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2564 }
1da177e4
LT		 2565 /* is device UP ? */
2566 if (!(card->dev->flags & IFF_UP)){
2567 dev_kfree_skb_any(skb);
2568 continue;
2569 }
330b6369
FP		 2570 if (card->info.type == QETH_CARD_TYPE_OSN)
2571 rxrc = card->osn_info.data_cb(skb);
2572 else
1da177e4
LT		 2573#ifdef CONFIG_QETH_VLAN
2574 if (vlan_tag)
330b6369
FP		 2575 if (card->vlangrp)
2576 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2577 else {
2578 dev_kfree_skb_any(skb);
2579 continue;
2580 }
1da177e4
LT		 2581 else
2582#endif
500f83ab 2583 rxrc = netif_rx(skb);
1da177e4
LT		 2584 card->dev->last_rx = jiffies;
2585 card->stats.rx_packets++;
2586 card->stats.rx_bytes += skb->len;
2587 }
2588}
2589
2590static inline struct qeth_buffer_pool_entry *
2591qeth_get_buffer_pool_entry(struct qeth_card *card)
2592{
2593 struct qeth_buffer_pool_entry *entry;
2594
2595 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2596 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2597 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2598 struct qeth_buffer_pool_entry, list);
2599 list_del_init(&entry->list);
2600 return entry;
2601 }
2602 return NULL;
2603}
2604
2605static inline void
2606qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2607{
2608 struct qeth_buffer_pool_entry *pool_entry;
2609 int i;
09d2d38a 2610
1da177e4
LT		 2611 pool_entry = qeth_get_buffer_pool_entry(card);
2612 /*
2613 * since the buffer is accessed only from the input_tasklet
2614 * there shouldn't be a need to synchronize; also, since we use
2615 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2616 * buffers
2617 */
2618 BUG_ON(!pool_entry);
2619
2620 buf->pool_entry = pool_entry;
2621 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2622 buf->buffer->element[i].length = PAGE_SIZE;
2623 buf->buffer->element[i].addr = pool_entry->elements[i];
2624 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2625 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2626 else
2627 buf->buffer->element[i].flags = 0;
2628 }
2629 buf->state = QETH_QDIO_BUF_EMPTY;
2630}
2631
2632static inline void
2633qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2634 struct qeth_qdio_out_buffer *buf)
2635{
2636 int i;
2637 struct sk_buff *skb;
2638
2639 /* is PCI flag set on buffer? */
2640 if (buf->buffer->element[0].flags & 0x40)
2641 atomic_dec(&queue->set_pci_flags_count);
2642
2643 while ((skb = skb_dequeue(&buf->skb_list))){
2644 atomic_dec(&skb->users);
2645 dev_kfree_skb_any(skb);
2646 }
2647 qeth_eddp_buf_release_contexts(buf);
2648 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2649 buf->buffer->element[i].length = 0;
2650 buf->buffer->element[i].addr = NULL;
2651 buf->buffer->element[i].flags = 0;
2652 }
2653 buf->next_element_to_fill = 0;
2654 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2655}
2656
2657static inline void
2658qeth_queue_input_buffer(struct qeth_card *card, int index)
2659{
2660 struct qeth_qdio_q *queue = card->qdio.in_q;
2661 int count;
2662 int i;
2663 int rc;
2664
2665 QETH_DBF_TEXT(trace,6,"queinbuf");
2666 count = (index < queue->next_buf_to_init)?
2667 card->qdio.in_buf_pool.buf_count -
2668 (queue->next_buf_to_init - index) :
2669 card->qdio.in_buf_pool.buf_count -
2670 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2671 /* only requeue at a certain threshold to avoid SIGAs */
2672 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2673 for (i = queue->next_buf_to_init;
2674 i < queue->next_buf_to_init + count; ++i)
2675 qeth_init_input_buffer(card,
2676 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2677 /*
2678 * according to old code it should be avoided to requeue all
2679 * 128 buffers in order to benefit from PCI avoidance.
2680 * this function keeps at least one buffer (the buffer at
2681 * 'index') un-requeued -> this buffer is the first buffer that
2682 * will be requeued the next time
2683 */
09d2d38a
FP		 2684 if (card->options.performance_stats) {
2685 card->perf_stats.inbound_do_qdio_cnt++;
2686 card->perf_stats.inbound_do_qdio_start_time =
2687 qeth_get_micros();
2688 }
1da177e4
LT		 2689 rc = do_QDIO(CARD_DDEV(card),
2690 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2691 0, queue->next_buf_to_init, count, NULL);
09d2d38a
FP		 2692 if (card->options.performance_stats)
2693 card->perf_stats.inbound_do_qdio_time +=
2694 qeth_get_micros() -
2695 card->perf_stats.inbound_do_qdio_start_time;
1da177e4
LT		 2696 if (rc){
2697 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2698 "return %i (device %s).\n",
2699 rc, CARD_DDEV_ID(card));
2700 QETH_DBF_TEXT(trace,2,"qinberr");
2701 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2702 }
2703 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2704 QDIO_MAX_BUFFERS_PER_Q;
2705 }
2706}
2707
2708static inline void
2709qeth_put_buffer_pool_entry(struct qeth_card *card,
2710 struct qeth_buffer_pool_entry *entry)
2711{
2712 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2713 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2714}
2715
2716static void
2717qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2718 unsigned int qdio_err, unsigned int siga_err,
2719 unsigned int queue, int first_element, int count,
2720 unsigned long card_ptr)
2721{
2722 struct net_device *net_dev;
2723 struct qeth_card *card;
2724 struct qeth_qdio_buffer *buffer;
2725 int index;
2726 int i;
2727
2728 QETH_DBF_TEXT(trace, 6, "qdinput");
2729 card = (struct qeth_card *) card_ptr;
2730 net_dev = card->dev;
09d2d38a
FP		 2731 if (card->options.performance_stats) {
2732 card->perf_stats.inbound_cnt++;
2733 card->perf_stats.inbound_start_time = qeth_get_micros();
2734 }
1da177e4
LT		 2735 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2736 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2737 QETH_DBF_TEXT(trace, 1,"qdinchk");
2738 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2739 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2740 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2741 qeth_schedule_recovery(card);
2742 return;
2743 }
2744 }
2745 for (i = first_element; i < (first_element + count); ++i) {
2746 index = i % QDIO_MAX_BUFFERS_PER_Q;
2747 buffer = &card->qdio.in_q->bufs[index];
6c6b3e7c 2748 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
e82b0f2c 2749 qeth_check_qdio_errors(buffer->buffer,
6c6b3e7c 2750 qdio_err, siga_err,"qinerr")))
1da177e4
LT		 2751 qeth_process_inbound_buffer(card, buffer, index);
2752 /* clear buffer and give back to hardware */
2753 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2754 qeth_queue_input_buffer(card, index);
2755 }
09d2d38a
FP		 2756 if (card->options.performance_stats)
2757 card->perf_stats.inbound_time += qeth_get_micros() -
2758 card->perf_stats.inbound_start_time;
1da177e4
LT		 2759}
2760
2761static inline int
2762qeth_handle_send_error(struct qeth_card *card,
2763 struct qeth_qdio_out_buffer *buffer,
6c6b3e7c 2764 unsigned int qdio_err, unsigned int siga_err)
1da177e4
LT		 2765{
2766 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2767 int cc = siga_err & 3;
2768
2769 QETH_DBF_TEXT(trace, 6, "hdsnderr");
6c6b3e7c 2770 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
1da177e4
LT		 2771 switch (cc) {
2772 case 0:
2773 if (qdio_err){
2774 QETH_DBF_TEXT(trace, 1,"lnkfail");
2775 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2776 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2777 (u16)qdio_err, (u8)sbalf15);
2778 return QETH_SEND_ERROR_LINK_FAILURE;
2779 }
2780 return QETH_SEND_ERROR_NONE;
2781 case 2:
2782 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2783 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2784 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2785 return QETH_SEND_ERROR_KICK_IT;
2786 }
2787 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2788 return QETH_SEND_ERROR_RETRY;
2789 return QETH_SEND_ERROR_LINK_FAILURE;
2790 /* look at qdio_error and sbalf 15 */
2791 case 1:
2792 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2793 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2794 return QETH_SEND_ERROR_LINK_FAILURE;
2795 case 3:
1380fee2 2796 default:
1da177e4
LT		 2797 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2798 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2799 return QETH_SEND_ERROR_KICK_IT;
2800 }
1da177e4
LT		 2801}
2802
2803void
2804qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2805 int index, int count)
2806{
2807 struct qeth_qdio_out_buffer *buf;
2808 int rc;
2809 int i;
2810
2811 QETH_DBF_TEXT(trace, 6, "flushbuf");
2812
2813 for (i = index; i < index + count; ++i) {
2814 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2815 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2816 SBAL_FLAGS_LAST_ENTRY;
2817
2818 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2819 continue;
2820
2821 if (!queue->do_pack){
2822 if ((atomic_read(&queue->used_buffers) >=
2823 (QETH_HIGH_WATERMARK_PACK -
2824 QETH_WATERMARK_PACK_FUZZ)) &&
2825 !atomic_read(&queue->set_pci_flags_count)){
2826 /* it's likely that we'll go to packing
2827 * mode soon */
2828 atomic_inc(&queue->set_pci_flags_count);
2829 buf->buffer->element[0].flags |= 0x40;
2830 }
2831 } else {
2832 if (!atomic_read(&queue->set_pci_flags_count)){
2833 /*
2834 * there's no outstanding PCI any more, so we
2835 * have to request a PCI to be sure the the PCI
2836 * will wake at some time in the future then we
2837 * can flush packed buffers that might still be
2838 * hanging around, which can happen if no
2839 * further send was requested by the stack
2840 */
2841 atomic_inc(&queue->set_pci_flags_count);
2842 buf->buffer->element[0].flags |= 0x40;
2843 }
2844 }
2845 }
2846
2847 queue->card->dev->trans_start = jiffies;
09d2d38a
FP		 2848 if (queue->card->options.performance_stats) {
2849 queue->card->perf_stats.outbound_do_qdio_cnt++;
2850 queue->card->perf_stats.outbound_do_qdio_start_time =
2851 qeth_get_micros();
2852 }
1da177e4
LT		 2853 if (under_int)
2854 rc = do_QDIO(CARD_DDEV(queue->card),
2855 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2856 queue->queue_no, index, count, NULL);
2857 else
2858 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2859 queue->queue_no, index, count, NULL);
09d2d38a
FP		 2860 if (queue->card->options.performance_stats)
2861 queue->card->perf_stats.outbound_do_qdio_time +=
2862 qeth_get_micros() -
2863 queue->card->perf_stats.outbound_do_qdio_start_time;
1da177e4 2864 if (rc){
1da177e4
LT		 2865 QETH_DBF_TEXT(trace, 2, "flushbuf");
2866 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
f3d242e8 2867 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
1da177e4
LT		 2868 queue->card->stats.tx_errors += count;
2869 /* this must not happen under normal circumstances. if it
2870 * happens something is really wrong -> recover */
2871 qeth_schedule_recovery(queue->card);
2872 return;
2873 }
2874 atomic_add(count, &queue->used_buffers);
09d2d38a
FP		 2875 if (queue->card->options.performance_stats)
2876 queue->card->perf_stats.bufs_sent += count;
1da177e4
LT		 2877}
2878
2879/*
2880 * Switched to packing state if the number of used buffers on a queue
2881 * reaches a certain limit.
2882 */
2883static inline void
2884qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2885{
2886 if (!queue->do_pack) {
2887 if (atomic_read(&queue->used_buffers)
2888 >= QETH_HIGH_WATERMARK_PACK){
2889 /* switch non-PACKING -> PACKING */
2890 QETH_DBF_TEXT(trace, 6, "np->pack");
09d2d38a
FP		 2891 if (queue->card->options.performance_stats)
2892 queue->card->perf_stats.sc_dp_p++;
1da177e4
LT		 2893 queue->do_pack = 1;
2894 }
2895 }
2896}
2897
2898/*
2899 * Switches from packing to non-packing mode. If there is a packing
2900 * buffer on the queue this buffer will be prepared to be flushed.
2901 * In that case 1 is returned to inform the caller. If no buffer
2902 * has to be flushed, zero is returned.
2903 */
2904static inline int
2905qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2906{
2907 struct qeth_qdio_out_buffer *buffer;
2908 int flush_count = 0;
2909
2910 if (queue->do_pack) {
2911 if (atomic_read(&queue->used_buffers)
2912 <= QETH_LOW_WATERMARK_PACK) {
2913 /* switch PACKING -> non-PACKING */
2914 QETH_DBF_TEXT(trace, 6, "pack->np");
09d2d38a
FP		 2915 if (queue->card->options.performance_stats)
2916 queue->card->perf_stats.sc_p_dp++;
1da177e4
LT		 2917 queue->do_pack = 0;
2918 /* flush packing buffers */
2919 buffer = &queue->bufs[queue->next_buf_to_fill];
2920 if ((atomic_read(&buffer->state) ==
2921 QETH_QDIO_BUF_EMPTY) &&
2922 (buffer->next_element_to_fill > 0)) {
2923 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2924 flush_count++;
2925 queue->next_buf_to_fill =
2926 (queue->next_buf_to_fill + 1) %
2927 QDIO_MAX_BUFFERS_PER_Q;
09d2d38a 2928 }
1da177e4
LT		 2929 }
2930 }
2931 return flush_count;
2932}
2933
2934/*
2935 * Called to flush a packing buffer if no more pci flags are on the queue.
2936 * Checks if there is a packing buffer and prepares it to be flushed.
2937 * In that case returns 1, otherwise zero.
2938 */
2939static inline int
2940qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2941{
2942 struct qeth_qdio_out_buffer *buffer;
2943
2944 buffer = &queue->bufs[queue->next_buf_to_fill];
2945 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2946 (buffer->next_element_to_fill > 0)){
2947 /* it's a packing buffer */
2948 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2949 queue->next_buf_to_fill =
2950 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2951 return 1;
2952 }
2953 return 0;
2954}
2955
2956static inline void
2957qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2958{
2959 int index;
2960 int flush_cnt = 0;
2961 int q_was_packing = 0;
2962
2963 /*
2964 * check if weed have to switch to non-packing mode or if
2965 * we have to get a pci flag out on the queue
2966 */
2967 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2968 !atomic_read(&queue->set_pci_flags_count)){
9163bb2e 2969 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
1da177e4
LT		 2970 QETH_OUT_Q_UNLOCKED) {
2971 /*
2972 * If we get in here, there was no action in
2973 * do_send_packet. So, we check if there is a
2974 * packing buffer to be flushed here.
2975 */
2976 netif_stop_queue(queue->card->dev);
2977 index = queue->next_buf_to_fill;
2978 q_was_packing = queue->do_pack;
2979 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2980 if (!flush_cnt &&
2981 !atomic_read(&queue->set_pci_flags_count))
2982 flush_cnt +=
2983 qeth_flush_buffers_on_no_pci(queue);
09d2d38a
FP		 2984 if (queue->card->options.performance_stats &&
2985 q_was_packing)
1da177e4
LT		 2986 queue->card->perf_stats.bufs_sent_pack +=
2987 flush_cnt;
1da177e4
LT		 2988 if (flush_cnt)
2989 qeth_flush_buffers(queue, 1, index, flush_cnt);
2990 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2991 }
2992 }
2993}
2994
2995static void
2996qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2997 unsigned int qdio_error, unsigned int siga_error,
2998 unsigned int __queue, int first_element, int count,
2999 unsigned long card_ptr)
3000{
3001 struct qeth_card *card = (struct qeth_card *) card_ptr;
3002 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3003 struct qeth_qdio_out_buffer *buffer;
3004 int i;
3005
3006 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3007 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3008 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
f3d242e8
FP		 3009 QETH_DBF_TEXT(trace, 2, "achkcond");
3010 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
1da177e4
LT		 3011 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3012 netif_stop_queue(card->dev);
3013 qeth_schedule_recovery(card);
3014 return;
3015 }
3016 }
09d2d38a
FP		 3017 if (card->options.performance_stats) {
3018 card->perf_stats.outbound_handler_cnt++;
3019 card->perf_stats.outbound_handler_start_time =
3020 qeth_get_micros();
3021 }
1da177e4
LT		 3022 for(i = first_element; i < (first_element + count); ++i){
3023 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3024 /*we only handle the KICK_IT error by doing a recovery */
6c6b3e7c
FP		 3025 if (qeth_handle_send_error(card, buffer,
3026 qdio_error, siga_error)
1da177e4
LT		 3027 == QETH_SEND_ERROR_KICK_IT){
3028 netif_stop_queue(card->dev);
3029 qeth_schedule_recovery(card);
3030 return;
3031 }
3032 qeth_clear_output_buffer(queue, buffer);
3033 }
3034 atomic_sub(count, &queue->used_buffers);
3035 /* check if we need to do something on this outbound queue */
3036 if (card->info.type != QETH_CARD_TYPE_IQD)
3037 qeth_check_outbound_queue(queue);
3038
3039 netif_wake_queue(queue->card->dev);
09d2d38a
FP		 3040 if (card->options.performance_stats)
3041 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3042 card->perf_stats.outbound_handler_start_time;
1da177e4
LT		 3043}
3044
3045static void
3046qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3047{
3048
3049 param_field[0] = _ascebc['P'];
3050 param_field[1] = _ascebc['C'];
3051 param_field[2] = _ascebc['I'];
3052 param_field[3] = _ascebc['T'];
3053 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3054 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3055 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3056}
3057
3058static void
3059qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3060{
3061 param_field[16] = _ascebc['B'];
3062 param_field[17] = _ascebc['L'];
3063 param_field[18] = _ascebc['K'];
3064 param_field[19] = _ascebc['T'];
3065 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3066 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3067 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3068}
3069
3070static void
3071qeth_initialize_working_pool_list(struct qeth_card *card)
3072{
3073 struct qeth_buffer_pool_entry *entry;
3074
3075 QETH_DBF_TEXT(trace,5,"inwrklst");
3076
3077 list_for_each_entry(entry,
3078 &card->qdio.init_pool.entry_list, init_list) {
3079 qeth_put_buffer_pool_entry(card,entry);
3080 }
3081}
3082
3083static void
3084qeth_clear_working_pool_list(struct qeth_card *card)
3085{
3086 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3087
3088 QETH_DBF_TEXT(trace,5,"clwrklst");
3089 list_for_each_entry_safe(pool_entry, tmp,
3090 &card->qdio.in_buf_pool.entry_list, list){
3091 list_del(&pool_entry->list);
3092 }
3093}
3094
3095static void
3096qeth_free_buffer_pool(struct qeth_card *card)
3097{
3098 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3099 int i=0;
3100 QETH_DBF_TEXT(trace,5,"freepool");
3101 list_for_each_entry_safe(pool_entry, tmp,
3102 &card->qdio.init_pool.entry_list, init_list){
3103 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3104 free_page((unsigned long)pool_entry->elements[i]);
3105 list_del(&pool_entry->init_list);
3106 kfree(pool_entry);
3107 }
3108}
3109
3110static int
3111qeth_alloc_buffer_pool(struct qeth_card *card)
3112{
3113 struct qeth_buffer_pool_entry *pool_entry;
3114 void *ptr;
3115 int i, j;
3116
3117 QETH_DBF_TEXT(trace,5,"alocpool");
3118 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3119 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3120 if (!pool_entry){
3121 qeth_free_buffer_pool(card);
3122 return -ENOMEM;
3123 }
3124 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
9123e0d7 3125 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3126 if (!ptr) {
3127 while (j > 0)
3128 free_page((unsigned long)
3129 pool_entry->elements[--j]);
3130 kfree(pool_entry);
3131 qeth_free_buffer_pool(card);
3132 return -ENOMEM;
3133 }
3134 pool_entry->elements[j] = ptr;
3135 }
3136 list_add(&pool_entry->init_list,
3137 &card->qdio.init_pool.entry_list);
3138 }
3139 return 0;
3140}
3141
3142int
3143qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3144{
3145 QETH_DBF_TEXT(trace, 2, "realcbp");
3146
3147 if ((card->state != CARD_STATE_DOWN) &&
3148 (card->state != CARD_STATE_RECOVER))
3149 return -EPERM;
3150
3151 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3152 qeth_clear_working_pool_list(card);
3153 qeth_free_buffer_pool(card);
3154 card->qdio.in_buf_pool.buf_count = bufcnt;
3155 card->qdio.init_pool.buf_count = bufcnt;
3156 return qeth_alloc_buffer_pool(card);
3157}
3158
3159static int
3160qeth_alloc_qdio_buffers(struct qeth_card *card)
3161{
3162 int i, j;
3163
3164 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3165
f956b690
FP		 3166 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3167 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
1da177e4
LT		 3168 return 0;
3169
e82b0f2c 3170 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
9123e0d7 3171 GFP_KERNEL|GFP_DMA);
1da177e4 3172 if (!card->qdio.in_q)
f956b690 3173 goto out_nomem;
1da177e4
LT		 3174 QETH_DBF_TEXT(setup, 2, "inq");
3175 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3176 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3177 /* give inbound qeth_qdio_buffers their qdio_buffers */
3178 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3179 card->qdio.in_q->bufs[i].buffer =
3180 &card->qdio.in_q->qdio_bufs[i];
3181 /* inbound buffer pool */
f956b690
FP		 3182 if (qeth_alloc_buffer_pool(card))
3183 goto out_freeinq;
1da177e4
LT		 3184 /* outbound */
3185 card->qdio.out_qs =
3186 kmalloc(card->qdio.no_out_queues *
3187 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
f956b690
FP		 3188 if (!card->qdio.out_qs)
3189 goto out_freepool;
3190 for (i = 0; i < card->qdio.no_out_queues; ++i) {
1da177e4 3191 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
9123e0d7 3192 GFP_KERNEL|GFP_DMA);
f956b690
FP		 3193 if (!card->qdio.out_qs[i])
3194 goto out_freeoutq;
1da177e4
LT		 3195 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3196 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3197 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3198 card->qdio.out_qs[i]->queue_no = i;
3199 /* give outbound qeth_qdio_buffers their qdio_buffers */
3200 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3201 card->qdio.out_qs[i]->bufs[j].buffer =
3202 &card->qdio.out_qs[i]->qdio_bufs[j];
3203 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3204 skb_list);
91ebe2a9
HC		 3205 lockdep_set_class(
3206 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3207 &qdio_out_skb_queue_key);
1da177e4
LT		 3208 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3209 }
3210 }
1da177e4 3211 return 0;
f956b690
FP		 3212
3213out_freeoutq:
3214 while (i > 0)
3215 kfree(card->qdio.out_qs[--i]);
3216 kfree(card->qdio.out_qs);
3217out_freepool:
3218 qeth_free_buffer_pool(card);
3219out_freeinq:
3220 kfree(card->qdio.in_q);
3221out_nomem:
3222 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3223 return -ENOMEM;
1da177e4
LT		 3224}
3225
3226static void
3227qeth_free_qdio_buffers(struct qeth_card *card)
3228{
3229 int i, j;
3230
3231 QETH_DBF_TEXT(trace, 2, "freeqdbf");
9163bb2e 3232 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
f956b690 3233 QETH_QDIO_UNINITIALIZED)
1da177e4
LT		 3234 return;
3235 kfree(card->qdio.in_q);
3236 /* inbound buffer pool */
3237 qeth_free_buffer_pool(card);
3238 /* free outbound qdio_qs */
3239 for (i = 0; i < card->qdio.no_out_queues; ++i){
3240 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3241 qeth_clear_output_buffer(card->qdio.out_qs[i],
3242 &card->qdio.out_qs[i]->bufs[j]);
3243 kfree(card->qdio.out_qs[i]);
3244 }
3245 kfree(card->qdio.out_qs);
1da177e4
LT		 3246}
3247
3248static void
3249qeth_clear_qdio_buffers(struct qeth_card *card)
3250{
3251 int i, j;
3252
3253 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3254 /* clear outbound buffers to free skbs */
3255 for (i = 0; i < card->qdio.no_out_queues; ++i)
3256 if (card->qdio.out_qs[i]){
3257 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3258 qeth_clear_output_buffer(card->qdio.out_qs[i],
3259 &card->qdio.out_qs[i]->bufs[j]);
3260 }
3261}
3262
3263static void
3264qeth_init_qdio_info(struct qeth_card *card)
3265{
3266 QETH_DBF_TEXT(setup, 4, "intqdinf");
f956b690 3267 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1da177e4
LT		 3268 /* inbound */
3269 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3270 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3271 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3272 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3273 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1da177e4
LT		 3274}
3275
3276static int
3277qeth_init_qdio_queues(struct qeth_card *card)
3278{
3279 int i, j;
3280 int rc;
3281
3282 QETH_DBF_TEXT(setup, 2, "initqdqs");
3283
3284 /* inbound queue */
3285 memset(card->qdio.in_q->qdio_bufs, 0,
3286 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3287 qeth_initialize_working_pool_list(card);
3288 /*give only as many buffers to hardware as we have buffer pool entries*/
3289 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3290 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3291 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3292 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3293 card->qdio.in_buf_pool.buf_count - 1, NULL);
3294 if (rc) {
3295 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3296 return rc;
3297 }
3298 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3299 if (rc) {
3300 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3301 return rc;
3302 }
3303 /* outbound queue */
3304 for (i = 0; i < card->qdio.no_out_queues; ++i){
3305 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3306 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3307 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3308 qeth_clear_output_buffer(card->qdio.out_qs[i],
3309 &card->qdio.out_qs[i]->bufs[j]);
3310 }
3311 card->qdio.out_qs[i]->card = card;
3312 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3313 card->qdio.out_qs[i]->do_pack = 0;
3314 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3315 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3316 atomic_set(&card->qdio.out_qs[i]->state,
3317 QETH_OUT_Q_UNLOCKED);
3318 }
3319 return 0;
3320}
3321
3322static int
3323qeth_qdio_establish(struct qeth_card *card)
3324{
3325 struct qdio_initialize init_data;
3326 char *qib_param_field;
3327 struct qdio_buffer **in_sbal_ptrs;
3328 struct qdio_buffer **out_sbal_ptrs;
3329 int i, j, k;
f956b690 3330 int rc = 0;
1da177e4
LT		 3331
3332 QETH_DBF_TEXT(setup, 2, "qdioest");
3333
88abaab4 3334 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
1da177e4
LT		 3335 GFP_KERNEL);
3336 if (!qib_param_field)
3337 return -ENOMEM;
3338
1da177e4
LT		 3339 qeth_create_qib_param_field(card, qib_param_field);
3340 qeth_create_qib_param_field_blkt(card, qib_param_field);
3341
3342 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3343 GFP_KERNEL);
3344 if (!in_sbal_ptrs) {
3345 kfree(qib_param_field);
3346 return -ENOMEM;
3347 }
3348 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3349 in_sbal_ptrs[i] = (struct qdio_buffer *)
3350 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3351
3352 out_sbal_ptrs =
3353 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3354 sizeof(void *), GFP_KERNEL);
3355 if (!out_sbal_ptrs) {
3356 kfree(in_sbal_ptrs);
3357 kfree(qib_param_field);
3358 return -ENOMEM;
3359 }
3360 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3361 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3362 out_sbal_ptrs[k] = (struct qdio_buffer *)
3363 virt_to_phys(card->qdio.out_qs[i]->
3364 bufs[j].buffer);
3365 }
3366
3367 memset(&init_data, 0, sizeof(struct qdio_initialize));
3368 init_data.cdev = CARD_DDEV(card);
3369 init_data.q_format = qeth_get_qdio_q_format(card);
3370 init_data.qib_param_field_format = 0;
3371 init_data.qib_param_field = qib_param_field;
3372 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3373 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3374 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3375 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3376 init_data.no_input_qs = 1;
3377 init_data.no_output_qs = card->qdio.no_out_queues;
3378 init_data.input_handler = (qdio_handler_t *)
3379 qeth_qdio_input_handler;
3380 init_data.output_handler = (qdio_handler_t *)
3381 qeth_qdio_output_handler;
3382 init_data.int_parm = (unsigned long) card;
3383 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3384 QDIO_OUTBOUND_0COPY_SBALS |
3385 QDIO_USE_OUTBOUND_PCIS;
3386 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3387 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3388
f956b690
FP		 3389 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3390 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3391 if ((rc = qdio_initialize(&init_data)))
3392 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1da177e4
LT		 3393
3394 kfree(out_sbal_ptrs);
3395 kfree(in_sbal_ptrs);
3396 kfree(qib_param_field);
3397 return rc;
3398}
3399
3400static int
3401qeth_qdio_activate(struct qeth_card *card)
3402{
3403 QETH_DBF_TEXT(setup,3,"qdioact");
3404 return qdio_activate(CARD_DDEV(card), 0);
3405}
3406
3407static int
3408qeth_clear_channel(struct qeth_channel *channel)
3409{
3410 unsigned long flags;
3411 struct qeth_card *card;
3412 int rc;
3413
3414 QETH_DBF_TEXT(trace,3,"clearch");
3415 card = CARD_FROM_CDEV(channel->ccwdev);
3416 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3417 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3418 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3419
3420 if (rc)
3421 return rc;
3422 rc = wait_event_interruptible_timeout(card->wait_q,
3423 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3424 if (rc == -ERESTARTSYS)
3425 return rc;
3426 if (channel->state != CH_STATE_STOPPED)
3427 return -ETIME;
3428 channel->state = CH_STATE_DOWN;
3429 return 0;
3430}
3431
3432static int
3433qeth_halt_channel(struct qeth_channel *channel)
3434{
3435 unsigned long flags;
3436 struct qeth_card *card;
3437 int rc;
3438
3439 QETH_DBF_TEXT(trace,3,"haltch");
3440 card = CARD_FROM_CDEV(channel->ccwdev);
3441 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3442 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3443 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3444
3445 if (rc)
3446 return rc;
3447 rc = wait_event_interruptible_timeout(card->wait_q,
3448 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3449 if (rc == -ERESTARTSYS)
3450 return rc;
3451 if (channel->state != CH_STATE_HALTED)
3452 return -ETIME;
3453 return 0;
3454}
3455
3456static int
3457qeth_halt_channels(struct qeth_card *card)
3458{
f3d242e8 3459 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3460
3461 QETH_DBF_TEXT(trace,3,"haltchs");
f3d242e8
FP		 3462 rc1 = qeth_halt_channel(&card->read);
3463 rc2 = qeth_halt_channel(&card->write);
3464 rc3 = qeth_halt_channel(&card->data);
3465 if (rc1)
3466 return rc1;
e82b0f2c 3467 if (rc2)
f3d242e8
FP		 3468 return rc2;
3469 return rc3;
1da177e4
LT		 3470}
3471static int
3472qeth_clear_channels(struct qeth_card *card)
3473{
f3d242e8 3474 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3475
3476 QETH_DBF_TEXT(trace,3,"clearchs");
f3d242e8
FP		 3477 rc1 = qeth_clear_channel(&card->read);
3478 rc2 = qeth_clear_channel(&card->write);
3479 rc3 = qeth_clear_channel(&card->data);
3480 if (rc1)
3481 return rc1;
e82b0f2c 3482 if (rc2)
f3d242e8
FP		 3483 return rc2;
3484 return rc3;
1da177e4
LT		 3485}
3486
3487static int
3488qeth_clear_halt_card(struct qeth_card *card, int halt)
3489{
3490 int rc = 0;
3491
3492 QETH_DBF_TEXT(trace,3,"clhacrd");
3493 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3494
3495 if (halt)
3496 rc = qeth_halt_channels(card);
3497 if (rc)
3498 return rc;
3499 return qeth_clear_channels(card);
3500}
3501
3502static int
3503qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3504{
3505 int rc = 0;
3506
3507 QETH_DBF_TEXT(trace,3,"qdioclr");
f956b690
FP		 3508 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3509 QETH_QDIO_CLEANING)) {
3510 case QETH_QDIO_ESTABLISHED:
1da177e4 3511 if ((rc = qdio_cleanup(CARD_DDEV(card),
f956b690
FP		 3512 (card->info.type == QETH_CARD_TYPE_IQD) ?
3513 QDIO_FLAG_CLEANUP_USING_HALT :
3514 QDIO_FLAG_CLEANUP_USING_CLEAR)))
1da177e4 3515 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
f956b690
FP		 3516 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3517 break;
3518 case QETH_QDIO_CLEANING:
3519 return rc;
3520 default:
3521 break;
1da177e4
LT		 3522 }
3523 if ((rc = qeth_clear_halt_card(card, use_halt)))
3524 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3525 card->state = CARD_STATE_DOWN;
3526 return rc;
3527}
3528
3529static int
3530qeth_dm_act(struct qeth_card *card)
3531{
3532 int rc;
3533 struct qeth_cmd_buffer *iob;
3534
3535 QETH_DBF_TEXT(setup,2,"dmact");
3536
3537 iob = qeth_wait_for_buffer(&card->write);
3538 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3539
3540 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3541 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3542 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3543 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3544 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3545 return rc;
3546}
3547
3548static int
3549qeth_mpc_initialize(struct qeth_card *card)
3550{
3551 int rc;
3552
3553 QETH_DBF_TEXT(setup,2,"mpcinit");
3554
3555 if ((rc = qeth_issue_next_read(card))){
3556 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3557 return rc;
3558 }
3559 if ((rc = qeth_cm_enable(card))){
3560 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
f3d242e8 3561 goto out_qdio;
1da177e4
LT		 3562 }
3563 if ((rc = qeth_cm_setup(card))){
3564 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
f3d242e8 3565 goto out_qdio;
1da177e4
LT		 3566 }
3567 if ((rc = qeth_ulp_enable(card))){
3568 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
f3d242e8 3569 goto out_qdio;
1da177e4
LT		 3570 }
3571 if ((rc = qeth_ulp_setup(card))){
3572 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3573 goto out_qdio;
1da177e4
LT		 3574 }
3575 if ((rc = qeth_alloc_qdio_buffers(card))){
3576 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3577 goto out_qdio;
1da177e4
LT		 3578 }
3579 if ((rc = qeth_qdio_establish(card))){
3580 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3581 qeth_free_qdio_buffers(card);
3582 goto out_qdio;
3583 }
3584 if ((rc = qeth_qdio_activate(card))){
3585 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3586 goto out_qdio;
3587 }
3588 if ((rc = qeth_dm_act(card))){
3589 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3590 goto out_qdio;
3591 }
3592
3593 return 0;
3594out_qdio:
500f83ab 3595 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 3596 return rc;
3597}
3598
3599static struct net_device *
3600qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3601{
3602 struct net_device *dev = NULL;
3603
3604 switch (type) {
3605 case QETH_CARD_TYPE_OSAE:
3606 switch (linktype) {
3607 case QETH_LINK_TYPE_LANE_TR:
3608 case QETH_LINK_TYPE_HSTR:
3609#ifdef CONFIG_TR
3610 dev = alloc_trdev(0);
3611#endif /* CONFIG_TR */
3612 break;
3613 default:
3614 dev = alloc_etherdev(0);
3615 }
3616 break;
3617 case QETH_CARD_TYPE_IQD:
3618 dev = alloc_netdev(0, "hsi%d", ether_setup);
3619 break;
500f83ab
UB		 3620 case QETH_CARD_TYPE_OSN:
3621 dev = alloc_netdev(0, "osn%d", ether_setup);
3622 break;
1da177e4
LT		 3623 default:
3624 dev = alloc_etherdev(0);
3625 }
3626 return dev;
3627}
3628
3629/*hard_header fake function; used in case fake_ll is set */
3630static int
3631qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3632 unsigned short type, void *daddr, void *saddr,
3633 unsigned len)
3634{
e23dd9cd
FP		 3635 if(dev->type == ARPHRD_IEEE802_TR){
3636 struct trh_hdr *hdr;
3637 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3638 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3639 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3640 return QETH_FAKE_LL_LEN_TR;
3641
3642 } else {
3643 struct ethhdr *hdr;
3644 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3645 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3646 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3647 if (type != ETH_P_802_3)
3648 hdr->h_proto = htons(type);
3649 else
3650 hdr->h_proto = htons(len);
3651 return QETH_FAKE_LL_LEN_ETH;
1da177e4 3652
e23dd9cd 3653 }
1da177e4
LT		 3654}
3655
3656static inline int
3657qeth_send_packet(struct qeth_card *, struct sk_buff *);
3658
3659static int
3660qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3661{
3662 int rc;
3663 struct qeth_card *card;
3664
3665 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3666 card = (struct qeth_card *)dev->priv;
3667 if (skb==NULL) {
3668 card->stats.tx_dropped++;
3669 card->stats.tx_errors++;
3670 /* return OK; otherwise ksoftirqd goes to 100% */
3671 return NETDEV_TX_OK;
3672 }
3673 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3674 card->stats.tx_dropped++;
3675 card->stats.tx_errors++;
3676 card->stats.tx_carrier_errors++;
3677 dev_kfree_skb_any(skb);
3678 /* return OK; otherwise ksoftirqd goes to 100% */
3679 return NETDEV_TX_OK;
3680 }
09d2d38a
FP		 3681 if (card->options.performance_stats) {
3682 card->perf_stats.outbound_cnt++;
3683 card->perf_stats.outbound_start_time = qeth_get_micros();
3684 }
1da177e4
LT		 3685 netif_stop_queue(dev);
3686 if ((rc = qeth_send_packet(card, skb))) {
3687 if (rc == -EBUSY) {
3688 return NETDEV_TX_BUSY;
3689 } else {
3690 card->stats.tx_errors++;
3691 card->stats.tx_dropped++;
3692 dev_kfree_skb_any(skb);
3693 /*set to OK; otherwise ksoftirqd goes to 100% */
3694 rc = NETDEV_TX_OK;
3695 }
3696 }
3697 netif_wake_queue(dev);
09d2d38a
FP		 3698 if (card->options.performance_stats)
3699 card->perf_stats.outbound_time += qeth_get_micros() -
3700 card->perf_stats.outbound_start_time;
1da177e4
LT		 3701 return rc;
3702}
3703
3704static int
3705qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3706{
3707 int rc = 0;
3708#ifdef CONFIG_QETH_VLAN
3709 struct vlan_group *vg;
3710 int i;
3711
3712 if (!(vg = card->vlangrp))
3713 return rc;
3714
3715 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3716 if (vg->vlan_devices[i] == dev){
3717 rc = QETH_VLAN_CARD;
3718 break;
3719 }
3720 }
6c6b3e7c
FP		 3721 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3722 return 0;
3723
1da177e4
LT		 3724#endif
3725 return rc;
3726}
3727
3728static int
3729qeth_verify_dev(struct net_device *dev)
3730{
3731 struct qeth_card *card;
3732 unsigned long flags;
3733 int rc = 0;
3734
3735 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3736 list_for_each_entry(card, &qeth_card_list.list, list){
3737 if (card->dev == dev){
3738 rc = QETH_REAL_CARD;
3739 break;
3740 }
3741 rc = qeth_verify_vlan_dev(dev, card);
3742 if (rc)
3743 break;
3744 }
3745 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3746
3747 return rc;
3748}
3749
3750static struct qeth_card *
3751qeth_get_card_from_dev(struct net_device *dev)
3752{
3753 struct qeth_card *card = NULL;
3754 int rc;
3755
3756 rc = qeth_verify_dev(dev);
3757 if (rc == QETH_REAL_CARD)
3758 card = (struct qeth_card *)dev->priv;
3759 else if (rc == QETH_VLAN_CARD)
3760 card = (struct qeth_card *)
3761 VLAN_DEV_INFO(dev)->real_dev->priv;
3762
3763 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3764 return card ;
3765}
3766
3767static void
3768qeth_tx_timeout(struct net_device *dev)
3769{
3770 struct qeth_card *card;
3771
3772 card = (struct qeth_card *) dev->priv;
3773 card->stats.tx_errors++;
3774 qeth_schedule_recovery(card);
3775}
3776
3777static int
3778qeth_open(struct net_device *dev)
3779{
3780 struct qeth_card *card;
3781
3782 QETH_DBF_TEXT(trace, 4, "qethopen");
3783
3784 card = (struct qeth_card *) dev->priv;
3785
3786 if (card->state != CARD_STATE_SOFTSETUP)
3787 return -ENODEV;
3788
500f83ab
UB		 3789 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3790 (card->options.layer2) &&
e08d88cc 3791 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
1da177e4
LT		 3792 QETH_DBF_TEXT(trace,4,"nomacadr");
3793 return -EPERM;
3794 }
1da177e4
LT		 3795 card->data.state = CH_STATE_UP;
3796 card->state = CARD_STATE_UP;
ba1aa084
UB		 3797 card->dev->flags |= IFF_UP;
3798 netif_start_queue(dev);
e82b0f2c 3799
4965e97f
FP		 3800 if (!card->lan_online && netif_carrier_ok(dev))
3801 netif_carrier_off(dev);
1da177e4
LT		 3802 return 0;
3803}
3804
3805static int
3806qeth_stop(struct net_device *dev)
3807{
3808 struct qeth_card *card;
3809
3810 QETH_DBF_TEXT(trace, 4, "qethstop");
3811
3812 card = (struct qeth_card *) dev->priv;
3813
b85e1fa1 3814 netif_tx_disable(dev);
1da177e4
LT		 3815 card->dev->flags &= ~IFF_UP;
3816 if (card->state == CARD_STATE_UP)
3817 card->state = CARD_STATE_SOFTSETUP;
3818 return 0;
3819}
3820
3821static inline int
3822qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3823{
3824 int cast_type = RTN_UNSPEC;
3825
500f83ab
UB		 3826 if (card->info.type == QETH_CARD_TYPE_OSN)
3827 return cast_type;
3828
1da177e4
LT		 3829 if (skb->dst && skb->dst->neighbour){
3830 cast_type = skb->dst->neighbour->type;
3831 if ((cast_type == RTN_BROADCAST) ||
3832 (cast_type == RTN_MULTICAST) ||
3833 (cast_type == RTN_ANYCAST))
3834 return cast_type;
3835 else
3836 return RTN_UNSPEC;
3837 }
3838 /* try something else */
3839 if (skb->protocol == ETH_P_IPV6)
3840 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3841 else if (skb->protocol == ETH_P_IP)
3842 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3843 /* ... */
3844 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3845 return RTN_BROADCAST;
3846 else {
3847 u16 hdr_mac;
3848
3849 hdr_mac = *((u16 *)skb->data);
3850 /* tr multicast? */
3851 switch (card->info.link_type) {
3852 case QETH_LINK_TYPE_HSTR:
3853 case QETH_LINK_TYPE_LANE_TR:
3854 if ((hdr_mac == QETH_TR_MAC_NC) ||
3855 (hdr_mac == QETH_TR_MAC_C))
3856 return RTN_MULTICAST;
1380fee2 3857 break;
1da177e4
LT		 3858 /* eth or so multicast? */
3859 default:
3860 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3861 (hdr_mac == QETH_ETH_MAC_V6))
3862 return RTN_MULTICAST;
3863 }
3864 }
3865 return cast_type;
3866}
3867
3868static inline int
3869qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3870 int ipv, int cast_type)
3871{
3872 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3873 return card->qdio.default_out_queue;
3874 switch (card->qdio.no_out_queues) {
3875 case 4:
3876 if (cast_type && card->info.is_multicast_different)
3877 return card->info.is_multicast_different &
3878 (card->qdio.no_out_queues - 1);
3879 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3880 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3881 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3882 return 3;
3883 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3884 return 2;
3885 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3886 return 1;
3887 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3888 return 0;
3889 }
3890 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3891 return 3 - (skb->nh.iph->tos >> 6);
3892 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3893 /* TODO: IPv6!!! */
3894 }
3895 return card->qdio.default_out_queue;
3896 case 1: /* fallthrough for single-out-queue 1920-device */
3897 default:
3898 return card->qdio.default_out_queue;
3899 }
3900}
3901
3902static inline int
3903qeth_get_ip_version(struct sk_buff *skb)
3904{
3905 switch (skb->protocol) {
3906 case ETH_P_IPV6:
3907 return 6;
3908 case ETH_P_IP:
3909 return 4;
3910 default:
3911 return 0;
3912 }
3913}
3914
f7b65d70
FP		 3915static inline struct qeth_hdr *
3916__qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
1da177e4 3917{
1da177e4
LT		 3918#ifdef CONFIG_QETH_VLAN
3919 u16 *tag;
f7b65d70 3920 if (card->vlangrp && vlan_tx_tag_present(skb) &&
1da177e4
LT		 3921 ((ipv == 6) || card->options.layer2) ) {
3922 /*
3923 * Move the mac addresses (6 bytes src, 6 bytes dest)
3924 * to the beginning of the new header. We are using three
3925 * memcpys instead of one memmove to save cycles.
3926 */
f7b65d70
FP		 3927 skb_push(skb, VLAN_HLEN);
3928 memcpy(skb->data, skb->data + 4, 4);
3929 memcpy(skb->data + 4, skb->data + 8, 4);
3930 memcpy(skb->data + 8, skb->data + 12, 4);
3931 tag = (u16 *)(skb->data + 12);
1da177e4
LT		 3932 /*
3933 * first two bytes = ETH_P_8021Q (0x8100)
3934 * second two bytes = VLANID
3935 */
3936 *tag = __constant_htons(ETH_P_8021Q);
f7b65d70 3937 *(tag + 1) = htons(vlan_tx_tag_get(skb));
1da177e4
LT		 3938 }
3939#endif
f7b65d70
FP		 3940 return ((struct qeth_hdr *)
3941 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3942}
3943
3944static inline void
3945__qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3946{
3947 if (orig_skb != new_skb)
3948 dev_kfree_skb_any(new_skb);
3949}
3950
3951static inline struct sk_buff *
3952qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3953 struct qeth_hdr **hdr, int ipv)
3954{
2d36c16e 3955 struct sk_buff *new_skb, *new_skb2;
f7b65d70
FP		 3956
3957 QETH_DBF_TEXT(trace, 6, "prepskb");
2d36c16e
FB		 3958 new_skb = skb;
3959 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
3960 if (!new_skb)
f7b65d70 3961 return NULL;
2d36c16e
FB		 3962 new_skb2 = qeth_realloc_headroom(card, new_skb,
3963 sizeof(struct qeth_hdr));
3964 if (!new_skb2) {
3965 __qeth_free_new_skb(skb, new_skb);
3966 return NULL;
3967 }
3968 if (new_skb != skb)
3969 __qeth_free_new_skb(new_skb2, new_skb);
3970 new_skb = new_skb2;
f7b65d70
FP		 3971 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3972 if (*hdr == NULL) {
3973 __qeth_free_new_skb(skb, new_skb);
3974 return NULL;
3975 }
3976 return new_skb;
1da177e4
LT		 3977}
3978
3979static inline u8
3980qeth_get_qeth_hdr_flags4(int cast_type)
3981{
3982 if (cast_type == RTN_MULTICAST)
3983 return QETH_CAST_MULTICAST;
3984 if (cast_type == RTN_BROADCAST)
3985 return QETH_CAST_BROADCAST;
3986 return QETH_CAST_UNICAST;
3987}
3988
3989static inline u8
3990qeth_get_qeth_hdr_flags6(int cast_type)
3991{
3992 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3993 if (cast_type == RTN_MULTICAST)
3994 return ct | QETH_CAST_MULTICAST;
3995 if (cast_type == RTN_ANYCAST)
3996 return ct | QETH_CAST_ANYCAST;
3997 if (cast_type == RTN_BROADCAST)
3998 return ct | QETH_CAST_BROADCAST;
3999 return ct | QETH_CAST_UNICAST;
4000}
4001
4002static inline void
4003qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4004 struct sk_buff *skb)
4005{
4006 __u16 hdr_mac;
4007
4008 if (!memcmp(skb->data+QETH_HEADER_SIZE,
4009 skb->dev->broadcast,6)) { /* broadcast? */
4010 *(__u32 *)hdr->hdr.l2.flags |=
4011 QETH_LAYER2_FLAG_BROADCAST << 8;
4012 return;
4013 }
4014 hdr_mac=*((__u16*)skb->data);
4015 /* tr multicast? */
4016 switch (card->info.link_type) {
4017 case QETH_LINK_TYPE_HSTR:
4018 case QETH_LINK_TYPE_LANE_TR:
4019 if ((hdr_mac == QETH_TR_MAC_NC) ||
4020 (hdr_mac == QETH_TR_MAC_C) )
4021 *(__u32 *)hdr->hdr.l2.flags |=
4022 QETH_LAYER2_FLAG_MULTICAST << 8;
4023 else
4024 *(__u32 *)hdr->hdr.l2.flags |=
4025 QETH_LAYER2_FLAG_UNICAST << 8;
4026 break;
4027 /* eth or so multicast? */
4028 default:
4029 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4030 (hdr_mac==QETH_ETH_MAC_V6) )
4031 *(__u32 *)hdr->hdr.l2.flags |=
4032 QETH_LAYER2_FLAG_MULTICAST << 8;
4033 else
4034 *(__u32 *)hdr->hdr.l2.flags |=
4035 QETH_LAYER2_FLAG_UNICAST << 8;
4036 }
4037}
4038
4039static inline void
4040qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4041 struct sk_buff *skb, int cast_type)
4042{
4043 memset(hdr, 0, sizeof(struct qeth_hdr));
4044 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4045
4046 /* set byte 0 to "0x02" and byte 3 to casting flags */
4047 if (cast_type==RTN_MULTICAST)
4048 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4049 else if (cast_type==RTN_BROADCAST)
4050 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4051 else
4052 qeth_layer2_get_packet_type(card, hdr, skb);
4053
4054 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4055#ifdef CONFIG_QETH_VLAN
4056 /* VSWITCH relies on the VLAN
4057 * information to be present in
4058 * the QDIO header */
4059 if ((card->vlangrp != NULL) &&
4060 vlan_tx_tag_present(skb)) {
4061 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4062 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4063 }
4064#endif
4065}
4066
4067void
4068qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4069 struct sk_buff *skb, int ipv, int cast_type)
4070{
4071 QETH_DBF_TEXT(trace, 6, "fillhdr");
4072
4073 memset(hdr, 0, sizeof(struct qeth_hdr));
4074 if (card->options.layer2) {
4075 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4076 return;
4077 }
4078 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4079 hdr->hdr.l3.ext_flags = 0;
4080#ifdef CONFIG_QETH_VLAN
4081 /*
4082 * before we're going to overwrite this location with next hop ip.
4083 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4084 */
4085 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4086 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4087 QETH_HDR_EXT_VLAN_FRAME :
4088 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4089 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4090 }
4091#endif /* CONFIG_QETH_VLAN */
4092 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4093 if (ipv == 4) { /* IPv4 */
4094 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4095 memset(hdr->hdr.l3.dest_addr, 0, 12);
4096 if ((skb->dst) && (skb->dst->neighbour)) {
4097 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4098 *((u32 *) skb->dst->neighbour->primary_key);
4099 } else {
4100 /* fill in destination address used in ip header */
4101 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4102 }
4103 } else if (ipv == 6) { /* IPv6 or passthru */
4104 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4105 if ((skb->dst) && (skb->dst->neighbour)) {
4106 memcpy(hdr->hdr.l3.dest_addr,
4107 skb->dst->neighbour->primary_key, 16);
4108 } else {
4109 /* fill in destination address used in ip header */
4110 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4111 }
4112 } else { /* passthrough */
e23dd9cd 4113 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
e82b0f2c 4114 !memcmp(skb->data + sizeof(struct qeth_hdr) +
9a455819
FP		 4115 sizeof(__u16), skb->dev->broadcast, 6)) {
4116 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4117 QETH_HDR_PASSTHRU;
e23dd9cd 4118 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
1da177e4 4119 skb->dev->broadcast, 6)) { /* broadcast? */
e23dd9cd
FP		 4120 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4121 QETH_HDR_PASSTHRU;
1da177e4
LT		 4122 } else {
4123 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4124 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4125 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4126 }
4127 }
4128}
4129
1da177e4
LT		 4130static inline void
4131__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
05e08a2a 4132 int is_tso, int *next_element_to_fill)
1da177e4
LT		 4133{
4134 int length = skb->len;
4135 int length_here;
4136 int element;
4137 char *data;
05e08a2a 4138 int first_lap ;
1da177e4
LT		 4139
4140 element = *next_element_to_fill;
4141 data = skb->data;
05e08a2a
FP		 4142 first_lap = (is_tso == 0 ? 1 : 0);
4143
1da177e4
LT		 4144 while (length > 0) {
4145 /* length_here is the remaining amount of data in this page */
4146 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4147 if (length < length_here)
4148 length_here = length;
05e08a2a 4149
1da177e4
LT		 4150 buffer->element[element].addr = data;
4151 buffer->element[element].length = length_here;
4152 length -= length_here;
05e08a2a 4153 if (!length) {
1da177e4
LT		 4154 if (first_lap)
4155 buffer->element[element].flags = 0;
4156 else
4157 buffer->element[element].flags =
4158 SBAL_FLAGS_LAST_FRAG;
4159 } else {
4160 if (first_lap)
4161 buffer->element[element].flags =
4162 SBAL_FLAGS_FIRST_FRAG;
4163 else
4164 buffer->element[element].flags =
4165 SBAL_FLAGS_MIDDLE_FRAG;
4166 }
4167 data += length_here;
4168 element++;
4169 first_lap = 0;
4170 }
4171 *next_element_to_fill = element;
4172}
4173
4174static inline int
4175qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4176 struct qeth_qdio_out_buffer *buf,
4177 struct sk_buff *skb)
4178{
4179 struct qdio_buffer *buffer;
05e08a2a
FP		 4180 struct qeth_hdr_tso *hdr;
4181 int flush_cnt = 0, hdr_len, large_send = 0;
1da177e4
LT		 4182
4183 QETH_DBF_TEXT(trace, 6, "qdfillbf");
05e08a2a 4184
1da177e4
LT		 4185 buffer = buf->buffer;
4186 atomic_inc(&skb->users);
4187 skb_queue_tail(&buf->skb_list, skb);
05e08a2a
FP		 4188
4189 hdr = (struct qeth_hdr_tso *) skb->data;
4190 /*check first on TSO ....*/
4191 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4192 int element = buf->next_element_to_fill;
4193
4194 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4195 /*fill first buffer entry only with header information */
4196 buffer->element[element].addr = skb->data;
4197 buffer->element[element].length = hdr_len;
4198 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4199 buf->next_element_to_fill++;
4200 skb->data += hdr_len;
4201 skb->len -= hdr_len;
4202 large_send = 1;
4203 }
1da177e4 4204 if (skb_shinfo(skb)->nr_frags == 0)
05e08a2a 4205 __qeth_fill_buffer(skb, buffer, large_send,
1da177e4
LT		 4206 (int *)&buf->next_element_to_fill);
4207 else
05e08a2a 4208 __qeth_fill_buffer_frag(skb, buffer, large_send,
1da177e4
LT		 4209 (int *)&buf->next_element_to_fill);
4210
4211 if (!queue->do_pack) {
4212 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4213 /* set state to PRIMED -> will be flushed */
4214 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4215 flush_cnt = 1;
4216 } else {
4217 QETH_DBF_TEXT(trace, 6, "fillbfpa");
09d2d38a
FP		 4218 if (queue->card->options.performance_stats)
4219 queue->card->perf_stats.skbs_sent_pack++;
1da177e4
LT		 4220 if (buf->next_element_to_fill >=
4221 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4222 /*
4223 * packed buffer if full -> set state PRIMED
4224 * -> will be flushed
4225 */
4226 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4227 flush_cnt = 1;
4228 }
4229 }
4230 return flush_cnt;
4231}
4232
4233static inline int
4234qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4235 struct sk_buff *skb, struct qeth_hdr *hdr,
4236 int elements_needed,
4237 struct qeth_eddp_context *ctx)
4238{
4239 struct qeth_qdio_out_buffer *buffer;
4240 int buffers_needed = 0;
4241 int flush_cnt = 0;
4242 int index;
4243
4244 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4245
4246 /* spin until we get the queue ... */
973bd993
MS		 4247 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4248 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4249 /* ... now we've got the queue */
4250 index = queue->next_buf_to_fill;
4251 buffer = &queue->bufs[queue->next_buf_to_fill];
4252 /*
4253 * check if buffer is empty to make sure that we do not 'overtake'
4254 * ourselves and try to fill a buffer that is already primed
4255 */
f7b65d70
FP		 4256 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4257 goto out;
1da177e4
LT		 4258 if (ctx == NULL)
4259 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4260 QDIO_MAX_BUFFERS_PER_Q;
4261 else {
4262 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
f7b65d70
FP		 4263 if (buffers_needed < 0)
4264 goto out;
1da177e4
LT		 4265 queue->next_buf_to_fill =
4266 (queue->next_buf_to_fill + buffers_needed) %
4267 QDIO_MAX_BUFFERS_PER_Q;
4268 }
4269 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4270 if (ctx == NULL) {
4271 qeth_fill_buffer(queue, buffer, skb);
4272 qeth_flush_buffers(queue, 0, index, 1);
4273 } else {
4274 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4275 WARN_ON(buffers_needed != flush_cnt);
4276 qeth_flush_buffers(queue, 0, index, flush_cnt);
4277 }
4278 return 0;
f7b65d70
FP		 4279out:
4280 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4281 return -EBUSY;
1da177e4
LT		 4282}
4283
4284static inline int
4285qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4286 struct sk_buff *skb, struct qeth_hdr *hdr,
4287 int elements_needed, struct qeth_eddp_context *ctx)
4288{
4289 struct qeth_qdio_out_buffer *buffer;
4290 int start_index;
4291 int flush_count = 0;
4292 int do_pack = 0;
4293 int tmp;
4294 int rc = 0;
4295
4296 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4297
4298 /* spin until we get the queue ... */
973bd993
MS		 4299 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4300 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4301 start_index = queue->next_buf_to_fill;
4302 buffer = &queue->bufs[queue->next_buf_to_fill];
4303 /*
4304 * check if buffer is empty to make sure that we do not 'overtake'
4305 * ourselves and try to fill a buffer that is already primed
4306 */
f7b65d70 4307 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
1da177e4
LT		 4308 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4309 return -EBUSY;
4310 }
4311 /* check if we need to switch packing state of this queue */
4312 qeth_switch_to_packing_if_needed(queue);
4313 if (queue->do_pack){
4314 do_pack = 1;
4315 if (ctx == NULL) {
4316 /* does packet fit in current buffer? */
4317 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4318 buffer->next_element_to_fill) < elements_needed){
4319 /* ... no -> set state PRIMED */
4320 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4321 flush_count++;
4322 queue->next_buf_to_fill =
4323 (queue->next_buf_to_fill + 1) %
4324 QDIO_MAX_BUFFERS_PER_Q;
4325 buffer = &queue->bufs[queue->next_buf_to_fill];
4326 /* we did a step forward, so check buffer state
4327 * again */
4328 if (atomic_read(&buffer->state) !=
4329 QETH_QDIO_BUF_EMPTY){
1da177e4
LT		 4330 qeth_flush_buffers(queue, 0, start_index, flush_count);
4331 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4332 return -EBUSY;
4333 }
4334 }
4335 } else {
4336 /* check if we have enough elements (including following
4337 * free buffers) to handle eddp context */
4338 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4339 printk("eddp tx_dropped 1\n");
1da177e4
LT		 4340 rc = -EBUSY;
4341 goto out;
4342 }
4343 }
4344 }
4345 if (ctx == NULL)
4346 tmp = qeth_fill_buffer(queue, buffer, skb);
4347 else {
4348 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4349 if (tmp < 0) {
4350 printk("eddp tx_dropped 2\n");
1da177e4
LT		 4351 rc = - EBUSY;
4352 goto out;
4353 }
4354 }
4355 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4356 QDIO_MAX_BUFFERS_PER_Q;
4357 flush_count += tmp;
4358out:
4359 if (flush_count)
4360 qeth_flush_buffers(queue, 0, start_index, flush_count);
d805d7c6 4361 else if (!atomic_read(&queue->set_pci_flags_count))
9163bb2e 4362 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
1da177e4
LT		 4363 /*
4364 * queue->state will go from LOCKED -> UNLOCKED or from
4365 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4366 * (switch packing state or flush buffer to get another pci flag out).
4367 * In that case we will enter this loop
4368 */
4369 while (atomic_dec_return(&queue->state)){
4370 flush_count = 0;
4371 start_index = queue->next_buf_to_fill;
4372 /* check if we can go back to non-packing state */
4373 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4374 /*
4375 * check if we need to flush a packing buffer to get a pci
4376 * flag out on the queue
4377 */
4378 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4379 flush_count += qeth_flush_buffers_on_no_pci(queue);
4380 if (flush_count)
4381 qeth_flush_buffers(queue, 0, start_index, flush_count);
4382 }
4383 /* at this point the queue is UNLOCKED again */
09d2d38a 4384 if (queue->card->options.performance_stats && do_pack)
1da177e4 4385 queue->card->perf_stats.bufs_sent_pack += flush_count;
1da177e4
LT		 4386
4387 return rc;
4388}
4389
05e08a2a 4390static inline int
e82b0f2c 4391qeth_get_elements_no(struct qeth_card *card, void *hdr,
9cb90de8 4392 struct sk_buff *skb, int elems)
05e08a2a
FP		 4393{
4394 int elements_needed = 0;
4395
f7b65d70 4396 if (skb_shinfo(skb)->nr_frags > 0)
05e08a2a 4397 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
f7b65d70 4398 if (elements_needed == 0)
05e08a2a
FP		 4399 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4400 + skb->len) >> PAGE_SHIFT);
9cb90de8 4401 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
f7b65d70
FP		 4402 PRINT_ERR("Invalid size of IP packet "
4403 "(Number=%d / Length=%d). Discarded.\n",
9cb90de8 4404 (elements_needed+elems), skb->len);
05e08a2a
FP		 4405 return 0;
4406 }
4407 return elements_needed;
4408}
4409
f7b65d70 4410
1da177e4
LT		 4411static inline int
4412qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4413{
4414 int ipv = 0;
4415 int cast_type;
4416 struct qeth_qdio_out_q *queue;
f3d242e8 4417 struct qeth_hdr *hdr = NULL;
1da177e4
LT		 4418 int elements_needed = 0;
4419 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4420 struct qeth_eddp_context *ctx = NULL;
95f6b5a1 4421 int tx_bytes = skb->len;
ba1aa084 4422 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
7967168c 4423 unsigned short tso_size = skb_shinfo(skb)->gso_size;
f7b65d70 4424 struct sk_buff *new_skb, *new_skb2;
1da177e4
LT		 4425 int rc;
4426
4427 QETH_DBF_TEXT(trace, 6, "sendpkt");
4428
f7b65d70
FP		 4429 new_skb = skb;
4430 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4431 (skb->protocol == htons(ETH_P_IPV6)))
4432 return -EPERM;
4433 cast_type = qeth_get_cast_type(card, skb);
4434 if ((cast_type == RTN_BROADCAST) &&
4435 (card->info.broadcast_capable == 0))
4436 return -EPERM;
4437 queue = card->qdio.out_qs
4438 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
1da177e4
LT		 4439 if (!card->options.layer2) {
4440 ipv = qeth_get_ip_version(skb);
4441 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
f7b65d70
FP		 4442 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4443 if (!new_skb)
4444 return -ENOMEM;
e23dd9cd 4445 if(card->dev->type == ARPHRD_IEEE802_TR){
f7b65d70 4446 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
e23dd9cd 4447 } else {
f7b65d70 4448 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
e23dd9cd 4449 }
1da177e4
LT		 4450 }
4451 }
89114afd 4452 if (skb_is_gso(skb))
1da177e4 4453 large_send = card->options.large_send;
f7b65d70
FP		 4454 /* check on OSN device*/
4455 if (card->info.type == QETH_CARD_TYPE_OSN)
4456 hdr = (struct qeth_hdr *)new_skb->data;
4457 /*are we able to do TSO ? */
1da177e4
LT		 4458 if ((large_send == QETH_LARGE_SEND_TSO) &&
4459 (cast_type == RTN_UNSPEC)) {
f7b65d70 4460 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
05e08a2a 4461 if (rc) {
f7b65d70
FP		 4462 __qeth_free_new_skb(skb, new_skb);
4463 return rc;
e82b0f2c 4464 }
05e08a2a 4465 elements_needed++;
f7b65d70
FP		 4466 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4467 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4468 if (!new_skb2) {
4469 __qeth_free_new_skb(skb, new_skb);
4470 return -EINVAL;
05e08a2a 4471 }
f7b65d70
FP		 4472 if (new_skb != skb)
4473 __qeth_free_new_skb(new_skb2, new_skb);
4474 new_skb = new_skb2;
4475 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
1da177e4 4476 }
1da177e4 4477 if (large_send == QETH_LARGE_SEND_EDDP) {
f7b65d70 4478 ctx = qeth_eddp_create_context(card, new_skb, hdr);
1da177e4 4479 if (ctx == NULL) {
f7b65d70 4480 __qeth_free_new_skb(skb, new_skb);
1da177e4
LT		 4481 PRINT_WARN("could not create eddp context\n");
4482 return -EINVAL;
4483 }
4484 } else {
f7b65d70 4485 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
9cb90de8 4486 elements_needed);
f7b65d70
FP		 4487 if (!elems) {
4488 __qeth_free_new_skb(skb, new_skb);
1da177e4 4489 return -EINVAL;
f7b65d70 4490 }
9cb90de8 4491 elements_needed += elems;
1da177e4
LT		 4492 }
4493
4494 if (card->info.type != QETH_CARD_TYPE_IQD)
f7b65d70 4495 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
1da177e4
LT		 4496 elements_needed, ctx);
4497 else
f7b65d70 4498 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
1da177e4 4499 elements_needed, ctx);
f7b65d70 4500 if (!rc) {
1da177e4 4501 card->stats.tx_packets++;
95f6b5a1 4502 card->stats.tx_bytes += tx_bytes;
f7b65d70
FP		 4503 if (new_skb != skb)
4504 dev_kfree_skb_any(skb);
09d2d38a
FP		 4505 if (card->options.performance_stats) {
4506 if (tso_size &&
4507 !(large_send == QETH_LARGE_SEND_NO)) {
4508 card->perf_stats.large_send_bytes += tx_bytes;
4509 card->perf_stats.large_send_cnt++;
4510 }
4511 if (nr_frags > 0) {
4512 card->perf_stats.sg_skbs_sent++;
4513 /* nr_frags + skb->data */
4514 card->perf_stats.sg_frags_sent +=
4515 nr_frags + 1;
4516 }
1da177e4 4517 }
f7b65d70
FP		 4518 } else {
4519 card->stats.tx_dropped++;
4520 __qeth_free_new_skb(skb, new_skb);
1da177e4
LT		 4521 }
4522 if (ctx != NULL) {
4523 /* drop creator's reference */
4524 qeth_eddp_put_context(ctx);
4525 /* free skb; it's not referenced by a buffer */
f7b65d70
FP		 4526 if (!rc)
4527 dev_kfree_skb_any(new_skb);
1da177e4
LT		 4528 }
4529 return rc;
4530}
4531
4532static int
4533qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4534{
4535 struct qeth_card *card = (struct qeth_card *) dev->priv;
4536 int rc = 0;
4537
4538 switch(regnum){
4539 case MII_BMCR: /* Basic mode control register */
4540 rc = BMCR_FULLDPLX;
4541 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
500f83ab 4542 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
1da177e4
LT		 4543 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4544 rc |= BMCR_SPEED100;
4545 break;
4546 case MII_BMSR: /* Basic mode status register */
4547 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4548 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4549 BMSR_100BASE4;
4550 break;
4551 case MII_PHYSID1: /* PHYS ID 1 */
4552 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4553 dev->dev_addr[2];
4554 rc = (rc >> 5) & 0xFFFF;
4555 break;
4556 case MII_PHYSID2: /* PHYS ID 2 */
4557 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4558 break;
4559 case MII_ADVERTISE: /* Advertisement control reg */
4560 rc = ADVERTISE_ALL;
4561 break;
4562 case MII_LPA: /* Link partner ability reg */
4563 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4564 LPA_100BASE4 | LPA_LPACK;
4565 break;
4566 case MII_EXPANSION: /* Expansion register */
4567 break;
4568 case MII_DCOUNTER: /* disconnect counter */
4569 break;
4570 case MII_FCSCOUNTER: /* false carrier counter */
4571 break;
4572 case MII_NWAYTEST: /* N-way auto-neg test register */
4573 break;
4574 case MII_RERRCOUNTER: /* rx error counter */
4575 rc = card->stats.rx_errors;
4576 break;
4577 case MII_SREVISION: /* silicon revision */
4578 break;
4579 case MII_RESV1: /* reserved 1 */
4580 break;
4581 case MII_LBRERROR: /* loopback, rx, bypass error */
4582 break;
4583 case MII_PHYADDR: /* physical address */
4584 break;
4585 case MII_RESV2: /* reserved 2 */
4586 break;
4587 case MII_TPISTATUS: /* TPI status for 10mbps */
4588 break;
4589 case MII_NCONFIG: /* network interface config */
4590 break;
4591 default:
1da177e4
LT		 4592 break;
4593 }
4594 return rc;
4595}
4596
1da177e4
LT		 4597
4598static inline const char *
4599qeth_arp_get_error_cause(int *rc)
4600{
4601 switch (*rc) {
4602 case QETH_IPA_ARP_RC_FAILED:
4603 *rc = -EIO;
4604 return "operation failed";
4605 case QETH_IPA_ARP_RC_NOTSUPP:
4606 *rc = -EOPNOTSUPP;
4607 return "operation not supported";
4608 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4609 *rc = -EINVAL;
4610 return "argument out of range";
4611 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4612 *rc = -EOPNOTSUPP;
4613 return "query operation not supported";
4614 case QETH_IPA_ARP_RC_Q_NO_DATA:
4615 *rc = -ENOENT;
4616 return "no query data available";
4617 default:
4618 return "unknown error";
4619 }
4620}
4621
4622static int
4623qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4624 __u16, long);
4625
4626static int
4627qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4628{
4629 int tmp;
4630 int rc;
4631
4632 QETH_DBF_TEXT(trace,3,"arpstnoe");
4633
f3d242e8
FP		 4634 /*
4635 * currently GuestLAN only supports the ARP assist function
4636 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4637 * thus we say EOPNOTSUPP for this ARP function
4638 */
1da177e4
LT		 4639 if (card->info.guestlan)
4640 return -EOPNOTSUPP;
4641 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4642 PRINT_WARN("ARP processing not supported "
4643 "on %s!\n", QETH_CARD_IFNAME(card));
4644 return -EOPNOTSUPP;
4645 }
4646 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4647 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4648 no_entries);
4649 if (rc) {
4650 tmp = rc;
4651 PRINT_WARN("Could not set number of ARP entries on %s: "
4652 "%s (0x%x/%d)\n",
4653 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4654 tmp, tmp);
4655 }
4656 return rc;
4657}
4658
4659static inline void
4660qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4661 struct qeth_arp_query_data *qdata,
4662 int entry_size, int uentry_size)
4663{
4664 char *entry_ptr;
4665 char *uentry_ptr;
4666 int i;
4667
4668 entry_ptr = (char *)&qdata->data;
4669 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4670 for (i = 0; i < qdata->no_entries; ++i){
4671 /* strip off 32 bytes "media specific information" */
4672 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4673 entry_ptr += entry_size;
4674 uentry_ptr += uentry_size;
4675 }
4676}
4677
4678static int
4679qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4680 unsigned long data)
4681{
4682 struct qeth_ipa_cmd *cmd;
4683 struct qeth_arp_query_data *qdata;
4684 struct qeth_arp_query_info *qinfo;
4685 int entry_size;
4686 int uentry_size;
4687 int i;
4688
4689 QETH_DBF_TEXT(trace,4,"arpquecb");
4690
4691 qinfo = (struct qeth_arp_query_info *) reply->param;
4692 cmd = (struct qeth_ipa_cmd *) data;
4693 if (cmd->hdr.return_code) {
4694 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4695 return 0;
4696 }
4697 if (cmd->data.setassparms.hdr.return_code) {
4698 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4699 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4700 return 0;
4701 }
4702 qdata = &cmd->data.setassparms.data.query_arp;
4703 switch(qdata->reply_bits){
4704 case 5:
4705 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4706 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4707 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4708 break;
4709 case 7:
4710 /* fall through to default */
4711 default:
4712 /* tr is the same as eth -> entry7 */
4713 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4714 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4715 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4716 break;
4717 }
4718 /* check if there is enough room in userspace */
4719 if ((qinfo->udata_len - qinfo->udata_offset) <
4720 qdata->no_entries * uentry_size){
4721 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4722 cmd->hdr.return_code = -ENOMEM;
4723 PRINT_WARN("query ARP user space buffer is too small for "
4724 "the returned number of ARP entries. "
4725 "Aborting query!\n");
4726 goto out_error;
4727 }
4728 QETH_DBF_TEXT_(trace, 4, "anore%i",
4729 cmd->data.setassparms.hdr.number_of_replies);
4730 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4731 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4732
4733 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4734 /* strip off "media specific information" */
4735 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4736 uentry_size);
4737 } else
4738 /*copy entries to user buffer*/
4739 memcpy(qinfo->udata + qinfo->udata_offset,
4740 (char *)&qdata->data, qdata->no_entries*uentry_size);
4741
4742 qinfo->no_entries += qdata->no_entries;
4743 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4744 /* check if all replies received ... */
4745 if (cmd->data.setassparms.hdr.seq_no <
4746 cmd->data.setassparms.hdr.number_of_replies)
4747 return 1;
4748 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4749 /* keep STRIP_ENTRIES flag so the user program can distinguish
4750 * stripped entries from normal ones */
4751 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4752 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4753 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4754 return 0;
4755out_error:
4756 i = 0;
4757 memcpy(qinfo->udata, &i, 4);
4758 return 0;
4759}
4760
4761static int
4762qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4763 int len, int (*reply_cb)(struct qeth_card *,
4764 struct qeth_reply *,
4765 unsigned long),
4766 void *reply_param)
4767{
4768 QETH_DBF_TEXT(trace,4,"sendarp");
4769
4770 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4771 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4772 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4773 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4774 reply_cb, reply_param);
4775}
4776
4777static int
4778qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4779 int len, int (*reply_cb)(struct qeth_card *,
4780 struct qeth_reply *,
4781 unsigned long),
4782 void *reply_param)
4783{
4784 u16 s1, s2;
4785
4786 QETH_DBF_TEXT(trace,4,"sendsnmp");
4787
4788 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4789 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4790 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4791 /* adjust PDU length fields in IPA_PDU_HEADER */
4792 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4793 s2 = (u32) len;
4794 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4795 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4796 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4797 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4798 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4799 reply_cb, reply_param);
4800}
4801
4802static struct qeth_cmd_buffer *
4803qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4804 __u16, __u16, enum qeth_prot_versions);
4805static int
d2c993d8 4806qeth_arp_query(struct qeth_card *card, char __user *udata)
1da177e4
LT		 4807{
4808 struct qeth_cmd_buffer *iob;
4809 struct qeth_arp_query_info qinfo = {0, };
4810 int tmp;
4811 int rc;
4812
4813 QETH_DBF_TEXT(trace,3,"arpquery");
4814
1da177e4
LT		 4815 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4816 IPA_ARP_PROCESSING)) {
4817 PRINT_WARN("ARP processing not supported "
4818 "on %s!\n", QETH_CARD_IFNAME(card));
4819 return -EOPNOTSUPP;
4820 }
4821 /* get size of userspace buffer and mask_bits -> 6 bytes */
4822 if (copy_from_user(&qinfo, udata, 6))
4823 return -EFAULT;
88abaab4 4824 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
1da177e4 4825 return -ENOMEM;
1da177e4
LT		 4826 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4827 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4828 IPA_CMD_ASS_ARP_QUERY_INFO,
4829 sizeof(int),QETH_PROT_IPV4);
4830
4831 rc = qeth_send_ipa_arp_cmd(card, iob,
4832 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4833 qeth_arp_query_cb, (void *)&qinfo);
4834 if (rc) {
4835 tmp = rc;
4836 PRINT_WARN("Error while querying ARP cache on %s: %s "
4837 "(0x%x/%d)\n",
4838 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4839 tmp, tmp);
3a6b95c8
HC		 4840 if (copy_to_user(udata, qinfo.udata, 4))
4841 rc = -EFAULT;
1da177e4 4842 } else {
3a6b95c8
HC		 4843 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4844 rc = -EFAULT;
1da177e4
LT		 4845 }
4846 kfree(qinfo.udata);
4847 return rc;
4848}
4849
4850/**
4851 * SNMP command callback
4852 */
4853static int
4854qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4855 unsigned long sdata)
4856{
4857 struct qeth_ipa_cmd *cmd;
4858 struct qeth_arp_query_info *qinfo;
4859 struct qeth_snmp_cmd *snmp;
4860 unsigned char *data;
4861 __u16 data_len;
4862
4863 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4864
4865 cmd = (struct qeth_ipa_cmd *) sdata;
4866 data = (unsigned char *)((char *)cmd - reply->offset);
4867 qinfo = (struct qeth_arp_query_info *) reply->param;
4868 snmp = &cmd->data.setadapterparms.data.snmp;
4869
4870 if (cmd->hdr.return_code) {
4871 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4872 return 0;
4873 }
4874 if (cmd->data.setadapterparms.hdr.return_code) {
4875 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4876 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4877 return 0;
4878 }
4879 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4880 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4881 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4882 else
4883 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4884
4885 /* check if there is enough room in userspace */
4886 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4887 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4888 cmd->hdr.return_code = -ENOMEM;
4889 return 0;
4890 }
4891 QETH_DBF_TEXT_(trace, 4, "snore%i",
4892 cmd->data.setadapterparms.hdr.used_total);
4893 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4894 /*copy entries to user buffer*/
4895 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4896 memcpy(qinfo->udata + qinfo->udata_offset,
4897 (char *)snmp,
4898 data_len + offsetof(struct qeth_snmp_cmd,data));
4899 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4900 } else {
4901 memcpy(qinfo->udata + qinfo->udata_offset,
4902 (char *)&snmp->request, data_len);
4903 }
4904 qinfo->udata_offset += data_len;
4905 /* check if all replies received ... */
4906 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4907 cmd->data.setadapterparms.hdr.used_total);
4908 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4909 cmd->data.setadapterparms.hdr.seq_no);
4910 if (cmd->data.setadapterparms.hdr.seq_no <
4911 cmd->data.setadapterparms.hdr.used_total)
4912 return 1;
4913 return 0;
4914}
4915
4916static struct qeth_cmd_buffer *
4917qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4918 enum qeth_prot_versions );
4919
4920static struct qeth_cmd_buffer *
4921qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4922{
4923 struct qeth_cmd_buffer *iob;
4924 struct qeth_ipa_cmd *cmd;
4925
4926 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4927 QETH_PROT_IPV4);
4928 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4929 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4930 cmd->data.setadapterparms.hdr.command_code = command;
4931 cmd->data.setadapterparms.hdr.used_total = 1;
4932 cmd->data.setadapterparms.hdr.seq_no = 1;
4933
4934 return iob;
4935}
4936
4937/**
4938 * function to send SNMP commands to OSA-E card
4939 */
4940static int
d2c993d8 4941qeth_snmp_command(struct qeth_card *card, char __user *udata)
1da177e4
LT		 4942{
4943 struct qeth_cmd_buffer *iob;
4944 struct qeth_ipa_cmd *cmd;
4945 struct qeth_snmp_ureq *ureq;
4946 int req_len;
4947 struct qeth_arp_query_info qinfo = {0, };
4948 int rc = 0;
4949
4950 QETH_DBF_TEXT(trace,3,"snmpcmd");
4951
4952 if (card->info.guestlan)
4953 return -EOPNOTSUPP;
4954
4955 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4956 (!card->options.layer2) ) {
4957 PRINT_WARN("SNMP Query MIBS not supported "
4958 "on %s!\n", QETH_CARD_IFNAME(card));
4959 return -EOPNOTSUPP;
4960 }
4961 /* skip 4 bytes (data_len struct member) to get req_len */
4962 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4963 return -EFAULT;
4964 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4965 if (!ureq) {
4966 QETH_DBF_TEXT(trace, 2, "snmpnome");
4967 return -ENOMEM;
4968 }
4969 if (copy_from_user(ureq, udata,
4970 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4971 kfree(ureq);
4972 return -EFAULT;
4973 }
4974 qinfo.udata_len = ureq->hdr.data_len;
88abaab4 4975 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
1da177e4
LT		 4976 kfree(ureq);
4977 return -ENOMEM;
4978 }
1da177e4
LT		 4979 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4980
4981 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4982 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4983 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4984 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4985 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4986 qeth_snmp_command_cb, (void *)&qinfo);
4987 if (rc)
4988 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4989 QETH_CARD_IFNAME(card), rc);
3a6b95c8
HC		 4990 else {
4991 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4992 rc = -EFAULT;
4993 }
1da177e4
LT		 4994
4995 kfree(ureq);
4996 kfree(qinfo.udata);
4997 return rc;
4998}
4999
5000static int
5001qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5002 unsigned long);
5003
5004static int
6c951b90
FP		 5005qeth_default_setadapterparms_cb(struct qeth_card *card,
5006 struct qeth_reply *reply,
5007 unsigned long data);
5008static int
1da177e4
LT		 5009qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5010 __u16, long,
5011 int (*reply_cb)
5012 (struct qeth_card *, struct qeth_reply *, unsigned long),
5013 void *reply_param);
5014
5015static int
5016qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5017{
5018 struct qeth_cmd_buffer *iob;
5019 char buf[16];
5020 int tmp;
5021 int rc;
5022
5023 QETH_DBF_TEXT(trace,3,"arpadent");
5024
5025 /*
f3d242e8
FP		 5026 * currently GuestLAN only supports the ARP assist function
5027 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5028 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5029 */
5030 if (card->info.guestlan)
5031 return -EOPNOTSUPP;
5032 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5033 PRINT_WARN("ARP processing not supported "
5034 "on %s!\n", QETH_CARD_IFNAME(card));
5035 return -EOPNOTSUPP;
5036 }
5037
5038 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5039 IPA_CMD_ASS_ARP_ADD_ENTRY,
5040 sizeof(struct qeth_arp_cache_entry),
5041 QETH_PROT_IPV4);
5042 rc = qeth_send_setassparms(card, iob,
5043 sizeof(struct qeth_arp_cache_entry),
5044 (unsigned long) entry,
5045 qeth_default_setassparms_cb, NULL);
5046 if (rc) {
5047 tmp = rc;
5048 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5049 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5050 "%s (0x%x/%d)\n",
5051 buf, QETH_CARD_IFNAME(card),
5052 qeth_arp_get_error_cause(&rc), tmp, tmp);
5053 }
5054 return rc;
5055}
5056
5057static int
5058qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5059{
5060 struct qeth_cmd_buffer *iob;
5061 char buf[16] = {0, };
5062 int tmp;
5063 int rc;
5064
5065 QETH_DBF_TEXT(trace,3,"arprment");
5066
5067 /*
f3d242e8
FP		 5068 * currently GuestLAN only supports the ARP assist function
5069 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5070 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5071 */
5072 if (card->info.guestlan)
5073 return -EOPNOTSUPP;
5074 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5075 PRINT_WARN("ARP processing not supported "
5076 "on %s!\n", QETH_CARD_IFNAME(card));
5077 return -EOPNOTSUPP;
5078 }
5079 memcpy(buf, entry, 12);
5080 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5081 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5082 12,
5083 QETH_PROT_IPV4);
5084 rc = qeth_send_setassparms(card, iob,
5085 12, (unsigned long)buf,
5086 qeth_default_setassparms_cb, NULL);
5087 if (rc) {
5088 tmp = rc;
5089 memset(buf, 0, 16);
5090 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5091 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5092 "%s (0x%x/%d)\n",
5093 buf, QETH_CARD_IFNAME(card),
5094 qeth_arp_get_error_cause(&rc), tmp, tmp);
5095 }
5096 return rc;
5097}
5098
5099static int
5100qeth_arp_flush_cache(struct qeth_card *card)
5101{
5102 int rc;
5103 int tmp;
5104
5105 QETH_DBF_TEXT(trace,3,"arpflush");
5106
5107 /*
f3d242e8
FP		 5108 * currently GuestLAN only supports the ARP assist function
5109 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5110 * thus we say EOPNOTSUPP for this ARP function
5111 */
1da177e4
LT		 5112 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5113 return -EOPNOTSUPP;
5114 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5115 PRINT_WARN("ARP processing not supported "
5116 "on %s!\n", QETH_CARD_IFNAME(card));
5117 return -EOPNOTSUPP;
5118 }
5119 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5120 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5121 if (rc){
5122 tmp = rc;
5123 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5124 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5125 tmp, tmp);
5126 }
5127 return rc;
5128}
5129
5130static int
5131qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5132{
5133 struct qeth_card *card = (struct qeth_card *)dev->priv;
5134 struct qeth_arp_cache_entry arp_entry;
5135 struct mii_ioctl_data *mii_data;
5136 int rc = 0;
5137
5138 if (!card)
5139 return -ENODEV;
5140
5141 if ((card->state != CARD_STATE_UP) &&
5142 (card->state != CARD_STATE_SOFTSETUP))
5143 return -ENODEV;
5144
500f83ab
UB		 5145 if (card->info.type == QETH_CARD_TYPE_OSN)
5146 return -EPERM;
5147
1da177e4
LT		 5148 switch (cmd){
5149 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5150 if ( !capable(CAP_NET_ADMIN) ||
5151 (card->options.layer2) ) {
5152 rc = -EPERM;
5153 break;
5154 }
5155 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5156 break;
5157 case SIOC_QETH_ARP_QUERY_INFO:
5158 if ( !capable(CAP_NET_ADMIN) ||
5159 (card->options.layer2) ) {
5160 rc = -EPERM;
5161 break;
5162 }
5163 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5164 break;
5165 case SIOC_QETH_ARP_ADD_ENTRY:
5166 if ( !capable(CAP_NET_ADMIN) ||
5167 (card->options.layer2) ) {
5168 rc = -EPERM;
5169 break;
5170 }
5171 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5172 sizeof(struct qeth_arp_cache_entry)))
5173 rc = -EFAULT;
5174 else
5175 rc = qeth_arp_add_entry(card, &arp_entry);
5176 break;
5177 case SIOC_QETH_ARP_REMOVE_ENTRY:
5178 if ( !capable(CAP_NET_ADMIN) ||
5179 (card->options.layer2) ) {
5180 rc = -EPERM;
5181 break;
5182 }
5183 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5184 sizeof(struct qeth_arp_cache_entry)))
5185 rc = -EFAULT;
5186 else
5187 rc = qeth_arp_remove_entry(card, &arp_entry);
5188 break;
5189 case SIOC_QETH_ARP_FLUSH_CACHE:
5190 if ( !capable(CAP_NET_ADMIN) ||
5191 (card->options.layer2) ) {
5192 rc = -EPERM;
5193 break;
5194 }
5195 rc = qeth_arp_flush_cache(card);
5196 break;
5197 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5198 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5199 break;
5200 case SIOC_QETH_GET_CARD_TYPE:
5201 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5202 !card->info.guestlan)
5203 return 1;
5204 return 0;
5205 break;
5206 case SIOCGMIIPHY:
5207 mii_data = if_mii(rq);
5208 mii_data->phy_id = 0;
5209 break;
5210 case SIOCGMIIREG:
5211 mii_data = if_mii(rq);
5212 if (mii_data->phy_id != 0)
5213 rc = -EINVAL;
5214 else
5215 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5216 mii_data->reg_num);
5217 break;
1da177e4
LT		 5218 default:
5219 rc = -EOPNOTSUPP;
5220 }
5221 if (rc)
5222 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5223 return rc;
5224}
5225
5226static struct net_device_stats *
5227qeth_get_stats(struct net_device *dev)
5228{
5229 struct qeth_card *card;
5230
5231 card = (struct qeth_card *) (dev->priv);
5232
5233 QETH_DBF_TEXT(trace,5,"getstat");
5234
5235 return &card->stats;
5236}
5237
5238static int
5239qeth_change_mtu(struct net_device *dev, int new_mtu)
5240{
5241 struct qeth_card *card;
5242 char dbf_text[15];
5243
5244 card = (struct qeth_card *) (dev->priv);
5245
5246 QETH_DBF_TEXT(trace,4,"chgmtu");
5247 sprintf(dbf_text, "%8x", new_mtu);
5248 QETH_DBF_TEXT(trace,4,dbf_text);
5249
5250 if (new_mtu < 64)
5251 return -EINVAL;
5252 if (new_mtu > 65535)
5253 return -EINVAL;
5254 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5255 (!qeth_mtu_is_valid(card, new_mtu)))
5256 return -EINVAL;
5257 dev->mtu = new_mtu;
5258 return 0;
5259}
5260
5261#ifdef CONFIG_QETH_VLAN
5262static void
5263qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5264{
5265 struct qeth_card *card;
5266 unsigned long flags;
5267
5268 QETH_DBF_TEXT(trace,4,"vlanreg");
5269
5270 card = (struct qeth_card *) dev->priv;
5271 spin_lock_irqsave(&card->vlanlock, flags);
5272 card->vlangrp = grp;
5273 spin_unlock_irqrestore(&card->vlanlock, flags);
5274}
5275
5276static inline void
5277qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5278 unsigned short vid)
5279{
5280 int i;
5281 struct sk_buff *skb;
5282 struct sk_buff_head tmp_list;
5283
5284 skb_queue_head_init(&tmp_list);
91ebe2a9 5285 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
1da177e4
LT		 5286 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5287 while ((skb = skb_dequeue(&buf->skb_list))){
5288 if (vlan_tx_tag_present(skb) &&
5289 (vlan_tx_tag_get(skb) == vid)) {
5290 atomic_dec(&skb->users);
5291 dev_kfree_skb(skb);
5292 } else
5293 skb_queue_tail(&tmp_list, skb);
5294 }
5295 }
5296 while ((skb = skb_dequeue(&tmp_list)))
5297 skb_queue_tail(&buf->skb_list, skb);
5298}
5299
5300static void
5301qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5302{
5303 int i, j;
5304
5305 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5306 for (i = 0; i < card->qdio.no_out_queues; ++i){
5307 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5308 qeth_free_vlan_buffer(card, &card->qdio.
5309 out_qs[i]->bufs[j], vid);
5310 }
5311}
5312
5313static void
5314qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5315{
5316 struct in_device *in_dev;
5317 struct in_ifaddr *ifa;
5318 struct qeth_ipaddr *addr;
5319
5320 QETH_DBF_TEXT(trace, 4, "frvaddr4");
6c88ad2d 5321
1da177e4 5322 rcu_read_lock();
e5ed6399 5323 in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
1da177e4
LT		 5324 if (!in_dev)
5325 goto out;
5326 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5327 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5328 if (addr){
5329 addr->u.a4.addr = ifa->ifa_address;
5330 addr->u.a4.mask = ifa->ifa_mask;
5331 addr->type = QETH_IP_TYPE_NORMAL;
5332 if (!qeth_delete_ip(card, addr))
5333 kfree(addr);
5334 }
5335 }
5336out:
5337 rcu_read_unlock();
5338}
5339
5340static void
5341qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5342{
5343#ifdef CONFIG_QETH_IPV6
5344 struct inet6_dev *in6_dev;
5345 struct inet6_ifaddr *ifa;
5346 struct qeth_ipaddr *addr;
5347
5348 QETH_DBF_TEXT(trace, 4, "frvaddr6");
6c88ad2d 5349
1da177e4
LT		 5350 in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5351 if (!in6_dev)
5352 return;
5353 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5354 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5355 if (addr){
5356 memcpy(&addr->u.a6.addr, &ifa->addr,
5357 sizeof(struct in6_addr));
5358 addr->u.a6.pfxlen = ifa->prefix_len;
5359 addr->type = QETH_IP_TYPE_NORMAL;
5360 if (!qeth_delete_ip(card, addr))
5361 kfree(addr);
5362 }
5363 }
5364 in6_dev_put(in6_dev);
5365#endif /* CONFIG_QETH_IPV6 */
5366}
5367
6c88ad2d
FP		 5368static void
5369qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5370{
5371 if (card->options.layer2 || !card->vlangrp)
5372 return;
5373 qeth_free_vlan_addresses4(card, vid);
5374 qeth_free_vlan_addresses6(card, vid);
5375}
5376
508cc2b0
FP		 5377static int
5378qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5379 struct qeth_reply *reply,
5380 unsigned long data)
5381{
5382 struct qeth_ipa_cmd *cmd;
5383
5384 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5385 cmd = (struct qeth_ipa_cmd *) data;
5386 if (cmd->hdr.return_code) {
5387 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
e82b0f2c 5388 "Continuing\n",cmd->data.setdelvlan.vlan_id,
508cc2b0
FP		 5389 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5390 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5391 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5392 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5393 }
5394 return 0;
5395}
5396
5397static int
1da177e4
LT		 5398qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5399 enum qeth_ipa_cmds ipacmd)
5400{
1da177e4
LT		 5401 struct qeth_ipa_cmd *cmd;
5402 struct qeth_cmd_buffer *iob;
5403
5404 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5405 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5406 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5407 cmd->data.setdelvlan.vlan_id = i;
e82b0f2c 5408 return qeth_send_ipa_cmd(card, iob,
508cc2b0 5409 qeth_layer2_send_setdelvlan_cb, NULL);
1da177e4
LT		 5410}
5411
5412static void
5413qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5414{
5415 unsigned short i;
5416
5417 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5418
5419 if (!card->vlangrp)
5420 return;
5421 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5422 if (card->vlangrp->vlan_devices[i] == NULL)
5423 continue;
5424 if (clear)
5425 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5426 else
5427 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5428 }
5429}
5430
5431/*add_vid is layer 2 used only ....*/
5432static void
5433qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5434{
5435 struct qeth_card *card;
5436
5437 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5438
5439 card = (struct qeth_card *) dev->priv;
5440 if (!card->options.layer2)
5441 return;
5442 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5443}
5444
5445/*... kill_vid used for both modes*/
5446static void
5447qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5448{
5449 struct qeth_card *card;
5450 unsigned long flags;
5451
5452 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5453
5454 card = (struct qeth_card *) dev->priv;
5455 /* free all skbs for the vlan device */
5456 qeth_free_vlan_skbs(card, vid);
5457 spin_lock_irqsave(&card->vlanlock, flags);
5458 /* unregister IP addresses of vlan device */
6c88ad2d 5459 qeth_free_vlan_addresses(card, vid);
1da177e4
LT		 5460 if (card->vlangrp)
5461 card->vlangrp->vlan_devices[vid] = NULL;
5462 spin_unlock_irqrestore(&card->vlanlock, flags);
5463 if (card->options.layer2)
5464 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5465 qeth_set_multicast_list(card->dev);
5466}
5467#endif
6c951b90
FP		 5468/**
5469 * Examine hardware response to SET_PROMISC_MODE
5470 */
5471static int
e82b0f2c 5472qeth_setadp_promisc_mode_cb(struct qeth_card *card,
6c951b90
FP		 5473 struct qeth_reply *reply,
5474 unsigned long data)
5475{
5476 struct qeth_ipa_cmd *cmd;
5477 struct qeth_ipacmd_setadpparms *setparms;
5478
5479 QETH_DBF_TEXT(trace,4,"prmadpcb");
5480
5481 cmd = (struct qeth_ipa_cmd *) data;
5482 setparms = &(cmd->data.setadapterparms);
e82b0f2c 5483
6c951b90 5484 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
e82b0f2c
JG		 5485 if (cmd->hdr.return_code) {
5486 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
6c951b90
FP		 5487 setparms->data.mode = SET_PROMISC_MODE_OFF;
5488 }
5489 card->info.promisc_mode = setparms->data.mode;
5490 return 0;
5491}
5492/*
5493 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5494 */
5495static void
5496qeth_setadp_promisc_mode(struct qeth_card *card)
5497{
5498 enum qeth_ipa_promisc_modes mode;
5499 struct net_device *dev = card->dev;
5500 struct qeth_cmd_buffer *iob;
5501 struct qeth_ipa_cmd *cmd;
5502
5503 QETH_DBF_TEXT(trace, 4, "setprom");
5504
5505 if (((dev->flags & IFF_PROMISC) &&
5506 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5507 (!(dev->flags & IFF_PROMISC) &&
5508 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5509 return;
5510 mode = SET_PROMISC_MODE_OFF;
5511 if (dev->flags & IFF_PROMISC)
5512 mode = SET_PROMISC_MODE_ON;
5513 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5514
5515 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5516 sizeof(struct qeth_ipacmd_setadpparms));
5517 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5518 cmd->data.setadapterparms.data.mode = mode;
5519 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5520}
1da177e4
LT		 5521
5522/**
5523 * set multicast address on card
5524 */
5525static void
5526qeth_set_multicast_list(struct net_device *dev)
5527{
5528 struct qeth_card *card = (struct qeth_card *) dev->priv;
5529
500f83ab
UB		 5530 if (card->info.type == QETH_CARD_TYPE_OSN)
5531 return ;
e82b0f2c 5532
66cc5d5a 5533 QETH_DBF_TEXT(trace, 3, "setmulti");
1da177e4 5534 qeth_delete_mc_addresses(card);
6c88ad2d
FP		 5535 if (card->options.layer2) {
5536 qeth_layer2_add_multicast(card);
5537 goto out;
5538 }
1da177e4
LT		 5539 qeth_add_multicast_ipv4(card);
5540#ifdef CONFIG_QETH_IPV6
5541 qeth_add_multicast_ipv6(card);
5542#endif
6c88ad2d 5543out:
1da177e4
LT		 5544 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5545 schedule_work(&card->kernel_thread_starter);
6c951b90
FP		 5546 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5547 return;
5548 if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5549 schedule_work(&card->kernel_thread_starter);
1da177e4
LT		 5550}
5551
5552static int
5553qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5554{
5555 return 0;
5556}
5557
5558static void
5559qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5560{
5561 if (dev->type == ARPHRD_IEEE802_TR)
5562 ip_tr_mc_map(ipm, mac);
5563 else
5564 ip_eth_mc_map(ipm, mac);
5565}
5566
5567static struct qeth_ipaddr *
5568qeth_get_addr_buffer(enum qeth_prot_versions prot)
5569{
5570 struct qeth_ipaddr *addr;
5571
88abaab4 5572 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
1da177e4
LT		 5573 if (addr == NULL) {
5574 PRINT_WARN("Not enough memory to add address\n");
5575 return NULL;
5576 }
1da177e4
LT		 5577 addr->type = QETH_IP_TYPE_NORMAL;
5578 addr->proto = prot;
5579 return addr;
5580}
5581
500f83ab
UB		 5582int
5583qeth_osn_assist(struct net_device *dev,
5584 void *data,
5585 int data_len)
5586{
5587 struct qeth_cmd_buffer *iob;
5588 struct qeth_card *card;
5589 int rc;
e82b0f2c 5590
500f83ab
UB		 5591 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5592 if (!dev)
5593 return -ENODEV;
5594 card = (struct qeth_card *)dev->priv;
5595 if (!card)
5596 return -ENODEV;
5597 if ((card->state != CARD_STATE_UP) &&
5598 (card->state != CARD_STATE_SOFTSETUP))
5599 return -ENODEV;
5600 iob = qeth_wait_for_buffer(&card->write);
5601 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5602 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5603 return rc;
5604}
5605
5606static struct net_device *
5607qeth_netdev_by_devno(unsigned char *read_dev_no)
5608{
5609 struct qeth_card *card;
5610 struct net_device *ndev;
5611 unsigned char *readno;
5612 __u16 temp_dev_no, card_dev_no;
5613 char *endp;
5614 unsigned long flags;
5615
5616 ndev = NULL;
5617 memcpy(&temp_dev_no, read_dev_no, 2);
5618 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5619 list_for_each_entry(card, &qeth_card_list.list, list) {
5620 readno = CARD_RDEV_ID(card);
5621 readno += (strlen(readno) - 4);
5622 card_dev_no = simple_strtoul(readno, &endp, 16);
5623 if (card_dev_no == temp_dev_no) {
5624 ndev = card->dev;
5625 break;
5626 }
5627 }
5628 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5629 return ndev;
5630}
5631
5632int
5633qeth_osn_register(unsigned char *read_dev_no,
5634 struct net_device **dev,
5635 int (*assist_cb)(struct net_device *, void *),
5636 int (*data_cb)(struct sk_buff *))
5637{
5638 struct qeth_card * card;
5639
5640 QETH_DBF_TEXT(trace, 2, "osnreg");
5641 *dev = qeth_netdev_by_devno(read_dev_no);
5642 if (*dev == NULL)
5643 return -ENODEV;
5644 card = (struct qeth_card *)(*dev)->priv;
5645 if (!card)
5646 return -ENODEV;
5647 if ((assist_cb == NULL) || (data_cb == NULL))
5648 return -EINVAL;
5649 card->osn_info.assist_cb = assist_cb;
5650 card->osn_info.data_cb = data_cb;
5651 return 0;
5652}
5653
5654void
5655qeth_osn_deregister(struct net_device * dev)
5656{
5657 struct qeth_card *card;
5658
5659 QETH_DBF_TEXT(trace, 2, "osndereg");
5660 if (!dev)
5661 return;
5662 card = (struct qeth_card *)dev->priv;
5663 if (!card)
5664 return;
5665 card->osn_info.assist_cb = NULL;
5666 card->osn_info.data_cb = NULL;
5667 return;
5668}
e82b0f2c 5669
1da177e4
LT		 5670static void
5671qeth_delete_mc_addresses(struct qeth_card *card)
5672{
5673 struct qeth_ipaddr *iptodo;
5674 unsigned long flags;
5675
5676 QETH_DBF_TEXT(trace,4,"delmc");
5677 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5678 if (!iptodo) {
5679 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5680 return;
5681 }
5682 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5683 spin_lock_irqsave(&card->ip_lock, flags);
5684 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5685 kfree(iptodo);
5686 spin_unlock_irqrestore(&card->ip_lock, flags);
5687}
5688
5689static inline void
5690qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5691{
5692 struct qeth_ipaddr *ipm;
5693 struct ip_mc_list *im4;
5694 char buf[MAX_ADDR_LEN];
5695
5696 QETH_DBF_TEXT(trace,4,"addmc");
5697 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5698 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5699 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5700 if (!ipm)
5701 continue;
5702 ipm->u.a4.addr = im4->multiaddr;
5703 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5704 ipm->is_multicast = 1;
5705 if (!qeth_add_ip(card,ipm))
5706 kfree(ipm);
5707 }
5708}
5709
5710static inline void
5711qeth_add_vlan_mc(struct qeth_card *card)
5712{
5713#ifdef CONFIG_QETH_VLAN
5714 struct in_device *in_dev;
5715 struct vlan_group *vg;
5716 int i;
5717
5718 QETH_DBF_TEXT(trace,4,"addmcvl");
5719 if ( ((card->options.layer2 == 0) &&
5720 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5721 (card->vlangrp == NULL) )
5722 return ;
5723
5724 vg = card->vlangrp;
5725 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5726 if (vg->vlan_devices[i] == NULL ||
5727 !(vg->vlan_devices[i]->flags & IFF_UP))
5728 continue;
5729 in_dev = in_dev_get(vg->vlan_devices[i]);
5730 if (!in_dev)
5731 continue;
5732 read_lock(&in_dev->mc_list_lock);
5733 qeth_add_mc(card,in_dev);
5734 read_unlock(&in_dev->mc_list_lock);
5735 in_dev_put(in_dev);
5736 }
5737#endif
5738}
5739
5740static void
5741qeth_add_multicast_ipv4(struct qeth_card *card)
5742{
5743 struct in_device *in4_dev;
5744
5745 QETH_DBF_TEXT(trace,4,"chkmcv4");
5746 in4_dev = in_dev_get(card->dev);
5747 if (in4_dev == NULL)
5748 return;
5749 read_lock(&in4_dev->mc_list_lock);
5750 qeth_add_mc(card, in4_dev);
5751 qeth_add_vlan_mc(card);
5752 read_unlock(&in4_dev->mc_list_lock);
5753 in_dev_put(in4_dev);
5754}
5755
6c88ad2d
FP		 5756static void
5757qeth_layer2_add_multicast(struct qeth_card *card)
5758{
5759 struct qeth_ipaddr *ipm;
5760 struct dev_mc_list *dm;
5761
5762 QETH_DBF_TEXT(trace,4,"L2addmc");
5763 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5764 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5765 if (!ipm)
5766 continue;
5767 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5768 ipm->is_multicast = 1;
5769 if (!qeth_add_ip(card, ipm))
5770 kfree(ipm);
5771 }
5772}
5773
1da177e4
LT		 5774#ifdef CONFIG_QETH_IPV6
5775static inline void
5776qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5777{
5778 struct qeth_ipaddr *ipm;
5779 struct ifmcaddr6 *im6;
5780 char buf[MAX_ADDR_LEN];
5781
5782 QETH_DBF_TEXT(trace,4,"addmc6");
5783 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5784 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5785 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5786 if (!ipm)
5787 continue;
5788 ipm->is_multicast = 1;
5789 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5790 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5791 sizeof(struct in6_addr));
5792 if (!qeth_add_ip(card,ipm))
5793 kfree(ipm);
5794 }
5795}
5796
5797static inline void
5798qeth_add_vlan_mc6(struct qeth_card *card)
5799{
5800#ifdef CONFIG_QETH_VLAN
5801 struct inet6_dev *in_dev;
5802 struct vlan_group *vg;
5803 int i;
5804
5805 QETH_DBF_TEXT(trace,4,"admc6vl");
5806 if ( ((card->options.layer2 == 0) &&
5807 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5808 (card->vlangrp == NULL))
5809 return ;
5810
5811 vg = card->vlangrp;
5812 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5813 if (vg->vlan_devices[i] == NULL ||
5814 !(vg->vlan_devices[i]->flags & IFF_UP))
5815 continue;
5816 in_dev = in6_dev_get(vg->vlan_devices[i]);
5817 if (!in_dev)
5818 continue;
5819 read_lock(&in_dev->lock);
5820 qeth_add_mc6(card,in_dev);
5821 read_unlock(&in_dev->lock);
5822 in6_dev_put(in_dev);
5823 }
5824#endif /* CONFIG_QETH_VLAN */
5825}
5826
5827static void
5828qeth_add_multicast_ipv6(struct qeth_card *card)
5829{
5830 struct inet6_dev *in6_dev;
5831
5832 QETH_DBF_TEXT(trace,4,"chkmcv6");
e82b0f2c 5833 if (!qeth_is_supported(card, IPA_IPV6))
1da177e4 5834 return ;
1da177e4
LT		 5835 in6_dev = in6_dev_get(card->dev);
5836 if (in6_dev == NULL)
5837 return;
5838 read_lock(&in6_dev->lock);
5839 qeth_add_mc6(card, in6_dev);
5840 qeth_add_vlan_mc6(card);
5841 read_unlock(&in6_dev->lock);
5842 in6_dev_put(in6_dev);
5843}
5844#endif /* CONFIG_QETH_IPV6 */
5845
5846static int
5847qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5848 enum qeth_ipa_cmds ipacmd,
5849 int (*reply_cb) (struct qeth_card *,
5850 struct qeth_reply*,
5851 unsigned long))
5852{
5853 struct qeth_ipa_cmd *cmd;
5854 struct qeth_cmd_buffer *iob;
5855
5856 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5857 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5858 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5859 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5860 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5861 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5862}
5863
5864static int
5865qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5866 struct qeth_reply *reply,
5867 unsigned long data)
5868{
5869 struct qeth_ipa_cmd *cmd;
5870 __u8 *mac;
5871
5872 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5873 cmd = (struct qeth_ipa_cmd *) data;
5874 mac = &cmd->data.setdelmac.mac[0];
5875 /* MAC already registered, needed in couple/uncouple case */
5876 if (cmd->hdr.return_code == 0x2005) {
5877 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5878 "already existing on %s \n",
5879 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5880 QETH_CARD_IFNAME(card));
5881 cmd->hdr.return_code = 0;
5882 }
5883 if (cmd->hdr.return_code)
5884 PRINT_ERR("Could not set group MAC " \
5885 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5886 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5887 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5888 return 0;
5889}
5890
5891static int
5892qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5893{
5894 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5895 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5896 qeth_layer2_send_setgroupmac_cb);
5897}
5898
5899static int
5900qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5901 struct qeth_reply *reply,
5902 unsigned long data)
5903{
5904 struct qeth_ipa_cmd *cmd;
5905 __u8 *mac;
5906
5907 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5908 cmd = (struct qeth_ipa_cmd *) data;
5909 mac = &cmd->data.setdelmac.mac[0];
5910 if (cmd->hdr.return_code)
5911 PRINT_ERR("Could not delete group MAC " \
5912 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5913 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5914 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5915 return 0;
5916}
5917
5918static int
5919qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5920{
5921 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5922 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5923 qeth_layer2_send_delgroupmac_cb);
5924}
5925
5926static int
5927qeth_layer2_send_setmac_cb(struct qeth_card *card,
5928 struct qeth_reply *reply,
5929 unsigned long data)
5930{
5931 struct qeth_ipa_cmd *cmd;
5932
5933 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5934 cmd = (struct qeth_ipa_cmd *) data;
5935 if (cmd->hdr.return_code) {
5936 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5937 PRINT_WARN("Error in registering MAC address on " \
5938 "device %s: x%x\n", CARD_BUS_ID(card),
5939 cmd->hdr.return_code);
e08d88cc 5940 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5941 cmd->hdr.return_code = -EIO;
5942 } else {
e08d88cc 5943 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5944 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5945 OSA_ADDR_LEN);
5946 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5947 "successfully registered on device %s\n",
5948 card->dev->dev_addr[0], card->dev->dev_addr[1],
5949 card->dev->dev_addr[2], card->dev->dev_addr[3],
5950 card->dev->dev_addr[4], card->dev->dev_addr[5],
5951 card->dev->name);
5952 }
5953 return 0;
5954}
5955
5956static int
5957qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5958{
5959 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5960 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5961 qeth_layer2_send_setmac_cb);
5962}
5963
5964static int
5965qeth_layer2_send_delmac_cb(struct qeth_card *card,
5966 struct qeth_reply *reply,
5967 unsigned long data)
5968{
5969 struct qeth_ipa_cmd *cmd;
5970
5971 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5972 cmd = (struct qeth_ipa_cmd *) data;
5973 if (cmd->hdr.return_code) {
5974 PRINT_WARN("Error in deregistering MAC address on " \
5975 "device %s: x%x\n", CARD_BUS_ID(card),
5976 cmd->hdr.return_code);
5977 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5978 cmd->hdr.return_code = -EIO;
5979 return 0;
5980 }
e08d88cc 5981 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5982
5983 return 0;
5984}
5985static int
5986qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5987{
5988 QETH_DBF_TEXT(trace, 2, "L2Delmac");
e08d88cc 5989 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
1da177e4
LT		 5990 return 0;
5991 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5992 qeth_layer2_send_delmac_cb);
5993}
5994
5995static int
5996qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5997{
5998 struct sockaddr *addr = p;
5999 struct qeth_card *card;
6000 int rc = 0;
6001
6002 QETH_DBF_TEXT(trace, 3, "setmac");
6003
6004 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6005 QETH_DBF_TEXT(trace, 3, "setmcINV");
6006 return -EOPNOTSUPP;
6007 }
6008 card = (struct qeth_card *) dev->priv;
6009
6010 if (!card->options.layer2) {
e08d88cc 6011 PRINT_WARN("Setting MAC address on %s is not supported "
1da177e4
LT		 6012 "in Layer 3 mode.\n", dev->name);
6013 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6014 return -EOPNOTSUPP;
6015 }
500f83ab
UB		 6016 if (card->info.type == QETH_CARD_TYPE_OSN) {
6017 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6018 dev->name);
6019 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6020 return -EOPNOTSUPP;
6021 }
1da177e4
LT		 6022 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6023 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6024 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6025 if (!rc)
6026 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6027 return rc;
6028}
6029
6030static void
6031qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6032 __u8 command, enum qeth_prot_versions prot)
6033{
6034 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6035 cmd->hdr.command = command;
6036 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6037 cmd->hdr.seqno = card->seqno.ipa;
6038 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6039 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6040 if (card->options.layer2)
6041 cmd->hdr.prim_version_no = 2;
6042 else
6043 cmd->hdr.prim_version_no = 1;
6044 cmd->hdr.param_count = 1;
6045 cmd->hdr.prot_version = prot;
6046 cmd->hdr.ipa_supported = 0;
6047 cmd->hdr.ipa_enabled = 0;
6048}
6049
6050static struct qeth_cmd_buffer *
6051qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6052 enum qeth_prot_versions prot)
6053{
6054 struct qeth_cmd_buffer *iob;
6055 struct qeth_ipa_cmd *cmd;
6056
6057 iob = qeth_wait_for_buffer(&card->write);
6058 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6059 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6060
6061 return iob;
6062}
6063
6064static int
6065qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6066{
6067 int rc;
6068 struct qeth_cmd_buffer *iob;
6069 struct qeth_ipa_cmd *cmd;
6070
6071 QETH_DBF_TEXT(trace,4,"setdelmc");
6072
6073 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6074 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6075 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6076 if (addr->proto == QETH_PROT_IPV6)
6077 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6078 sizeof(struct in6_addr));
6079 else
6080 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6081
6082 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6083
6084 return rc;
6085}
6086static inline void
6087qeth_fill_netmask(u8 *netmask, unsigned int len)
6088{
6089 int i,j;
6090 for (i=0;i<16;i++) {
6091 j=(len)-(i*8);
6092 if (j >= 8)
6093 netmask[i] = 0xff;
6094 else if (j > 0)
6095 netmask[i] = (u8)(0xFF00>>j);
6096 else
6097 netmask[i] = 0;
6098 }
6099}
6100
6101static int
6102qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6103 int ipacmd, unsigned int flags)
6104{
6105 int rc;
6106 struct qeth_cmd_buffer *iob;
6107 struct qeth_ipa_cmd *cmd;
6108 __u8 netmask[16];
6109
6110 QETH_DBF_TEXT(trace,4,"setdelip");
6111 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6112
6113 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6114 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6115 if (addr->proto == QETH_PROT_IPV6) {
6116 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6117 sizeof(struct in6_addr));
6118 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6119 memcpy(cmd->data.setdelip6.mask, netmask,
6120 sizeof(struct in6_addr));
6121 cmd->data.setdelip6.flags = flags;
6122 } else {
6123 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6124 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6125 cmd->data.setdelip4.flags = flags;
6126 }
6127
6128 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6129
6130 return rc;
6131}
6132
6133static int
6134qeth_layer2_register_addr_entry(struct qeth_card *card,
6135 struct qeth_ipaddr *addr)
6136{
6137 if (!addr->is_multicast)
6138 return 0;
6139 QETH_DBF_TEXT(trace, 2, "setgmac");
6140 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6141 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6142}
6143
6144static int
6145qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6146 struct qeth_ipaddr *addr)
6147{
6148 if (!addr->is_multicast)
6149 return 0;
6150 QETH_DBF_TEXT(trace, 2, "delgmac");
6151 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6152 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6153}
6154
6155static int
6156qeth_layer3_register_addr_entry(struct qeth_card *card,
6157 struct qeth_ipaddr *addr)
6158{
6159 char buf[50];
6160 int rc;
6161 int cnt = 3;
6162
6163 if (addr->proto == QETH_PROT_IPV4) {
6164 QETH_DBF_TEXT(trace, 2,"setaddr4");
6165 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6166 } else if (addr->proto == QETH_PROT_IPV6) {
6167 QETH_DBF_TEXT(trace, 2, "setaddr6");
6168 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6169 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6170 } else {
6171 QETH_DBF_TEXT(trace, 2, "setaddr?");
6172 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6173 }
6174 do {
6175 if (addr->is_multicast)
6176 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6177 else
6178 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6179 addr->set_flags);
6180 if (rc)
6181 QETH_DBF_TEXT(trace, 2, "failed");
6182 } while ((--cnt > 0) && rc);
6183 if (rc){
6184 QETH_DBF_TEXT(trace, 2, "FAILED");
6185 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6186 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6187 buf, rc, rc);
6188 }
6189 return rc;
6190}
6191
6192static int
6193qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6194 struct qeth_ipaddr *addr)
6195{
6196 //char buf[50];
6197 int rc;
6198
6199 if (addr->proto == QETH_PROT_IPV4) {
6200 QETH_DBF_TEXT(trace, 2,"deladdr4");
6201 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6202 } else if (addr->proto == QETH_PROT_IPV6) {
6203 QETH_DBF_TEXT(trace, 2, "deladdr6");
6204 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6205 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6206 } else {
6207 QETH_DBF_TEXT(trace, 2, "deladdr?");
6208 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6209 }
6210 if (addr->is_multicast)
6211 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6212 else
6213 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6214 addr->del_flags);
6215 if (rc) {
6216 QETH_DBF_TEXT(trace, 2, "failed");
6217 /* TODO: re-activate this warning as soon as we have a
6218 * clean mirco code
6219 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6220 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6221 buf, rc);
6222 */
6223 }
6224 return rc;
6225}
6226
6227static int
6228qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6229{
6230 if (card->options.layer2)
6231 return qeth_layer2_register_addr_entry(card, addr);
6232
6233 return qeth_layer3_register_addr_entry(card, addr);
6234}
6235
6236static int
6237qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6238{
6239 if (card->options.layer2)
6240 return qeth_layer2_deregister_addr_entry(card, addr);
6241
6242 return qeth_layer3_deregister_addr_entry(card, addr);
6243}
6244
6245static u32
6246qeth_ethtool_get_tx_csum(struct net_device *dev)
6247{
6248 /* We may need to say that we support tx csum offload if
6249 * we do EDDP or TSO. There are discussions going on to
6250 * enforce rules in the stack and in ethtool that make
6251 * SG and TSO depend on HW_CSUM. At the moment there are
6252 * no such rules....
6253 * If we say yes here, we have to checksum outbound packets
6254 * any time. */
6255 return 0;
6256}
6257
6258static int
6259qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6260{
6261 return -EINVAL;
6262}
6263
6264static u32
6265qeth_ethtool_get_rx_csum(struct net_device *dev)
6266{
6267 struct qeth_card *card = (struct qeth_card *)dev->priv;
6268
6269 return (card->options.checksum_type == HW_CHECKSUMMING);
6270}
6271
6272static int
6273qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6274{
6275 struct qeth_card *card = (struct qeth_card *)dev->priv;
6276
6277 if ((card->state != CARD_STATE_DOWN) &&
6278 (card->state != CARD_STATE_RECOVER))
6279 return -EPERM;
6280 if (data)
6281 card->options.checksum_type = HW_CHECKSUMMING;
6282 else
6283 card->options.checksum_type = SW_CHECKSUMMING;
6284 return 0;
6285}
6286
6287static u32
6288qeth_ethtool_get_sg(struct net_device *dev)
6289{
6290 struct qeth_card *card = (struct qeth_card *)dev->priv;
6291
6292 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6293 (dev->features & NETIF_F_SG));
6294}
6295
6296static int
6297qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6298{
6299 struct qeth_card *card = (struct qeth_card *)dev->priv;
6300
6301 if (data) {
6302 if (card->options.large_send != QETH_LARGE_SEND_NO)
6303 dev->features |= NETIF_F_SG;
6304 else {
6305 dev->features &= ~NETIF_F_SG;
6306 return -EINVAL;
6307 }
6308 } else
6309 dev->features &= ~NETIF_F_SG;
6310 return 0;
6311}
6312
6313static u32
6314qeth_ethtool_get_tso(struct net_device *dev)
6315{
6316 struct qeth_card *card = (struct qeth_card *)dev->priv;
6317
6318 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6319 (dev->features & NETIF_F_TSO));
6320}
6321
6322static int
6323qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6324{
6325 struct qeth_card *card = (struct qeth_card *)dev->priv;
6326
6327 if (data) {
6328 if (card->options.large_send != QETH_LARGE_SEND_NO)
6329 dev->features |= NETIF_F_TSO;
6330 else {
6331 dev->features &= ~NETIF_F_TSO;
6332 return -EINVAL;
6333 }
6334 } else
6335 dev->features &= ~NETIF_F_TSO;
6336 return 0;
6337}
6338
6339static struct ethtool_ops qeth_ethtool_ops = {
6340 .get_tx_csum = qeth_ethtool_get_tx_csum,
6341 .set_tx_csum = qeth_ethtool_set_tx_csum,
6342 .get_rx_csum = qeth_ethtool_get_rx_csum,
6343 .set_rx_csum = qeth_ethtool_set_rx_csum,
6344 .get_sg = qeth_ethtool_get_sg,
6345 .set_sg = qeth_ethtool_set_sg,
6346 .get_tso = qeth_ethtool_get_tso,
6347 .set_tso = qeth_ethtool_set_tso,
6348};
6349
2d36c16e
FB		 6350static int
6351qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6352{
6353 struct qeth_card *card;
6354 struct ethhdr *eth;
6355
6356 card = qeth_get_card_from_dev(skb->dev);
6357 if (card->options.layer2)
6358 goto haveheader;
6359#ifdef CONFIG_QETH_IPV6
6360 /* cause of the manipulated arp constructor and the ARP
6361 flag for OSAE devices we have some nasty exceptions */
6362 if (card->info.type == QETH_CARD_TYPE_OSAE) {
6363 if (!card->options.fake_ll) {
6364 if ((skb->pkt_type==PACKET_OUTGOING) &&
6365 (skb->protocol==ETH_P_IPV6))
6366 goto haveheader;
6367 else
6368 return 0;
6369 } else {
6370 if ((skb->pkt_type==PACKET_OUTGOING) &&
6371 (skb->protocol==ETH_P_IP))
6372 return 0;
6373 else
6374 goto haveheader;
6375 }
6376 }
6377#endif
6378 if (!card->options.fake_ll)
6379 return 0;
6380haveheader:
6381 eth = eth_hdr(skb);
6382 memcpy(haddr, eth->h_source, ETH_ALEN);
6383 return ETH_ALEN;
6384}
6385
1da177e4
LT		 6386static int
6387qeth_netdev_init(struct net_device *dev)
6388{
6389 struct qeth_card *card;
6390
6391 card = (struct qeth_card *) dev->priv;
6392
6393 QETH_DBF_TEXT(trace,3,"initdev");
6394
6395 dev->tx_timeout = &qeth_tx_timeout;
6396 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6397 dev->open = qeth_open;
6398 dev->stop = qeth_stop;
6399 dev->hard_start_xmit = qeth_hard_start_xmit;
6400 dev->do_ioctl = qeth_do_ioctl;
6401 dev->get_stats = qeth_get_stats;
6402 dev->change_mtu = qeth_change_mtu;
6403 dev->neigh_setup = qeth_neigh_setup;
6404 dev->set_multicast_list = qeth_set_multicast_list;
6405#ifdef CONFIG_QETH_VLAN
6406 dev->vlan_rx_register = qeth_vlan_rx_register;
6407 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6408 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6409#endif
1da177e4
LT		 6410 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6411 dev->rebuild_header = NULL;
6412 dev->hard_header = NULL;
1da177e4
LT		 6413 dev->header_cache_update = NULL;
6414 dev->hard_header_cache = NULL;
6415 }
6416#ifdef CONFIG_QETH_IPV6
6417 /*IPv6 address autoconfiguration stuff*/
6418 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6419 card->dev->dev_id = card->info.unique_id & 0xffff;
6420#endif
e82b0f2c 6421 if (card->options.fake_ll &&
ba1aa084
UB		 6422 (qeth_get_netdev_flags(card) & IFF_NOARP))
6423 dev->hard_header = qeth_fake_header;
2d36c16e
FB		 6424 if (dev->type == ARPHRD_IEEE802_TR)
6425 dev->hard_header_parse = NULL;
6426 else
6427 dev->hard_header_parse = qeth_hard_header_parse;
1da177e4
LT		 6428 dev->set_mac_address = qeth_layer2_set_mac_address;
6429 dev->flags |= qeth_get_netdev_flags(card);
6430 if ((card->options.fake_broadcast) ||
6431 (card->info.broadcast_capable))
6432 dev->flags |= IFF_BROADCAST;
6433 dev->hard_header_len =
6434 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6435 dev->addr_len = OSA_ADDR_LEN;
6436 dev->mtu = card->info.initial_mtu;
500f83ab
UB		 6437 if (card->info.type != QETH_CARD_TYPE_OSN)
6438 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
1da177e4
LT		 6439 SET_MODULE_OWNER(dev);
6440 return 0;
6441}
6442
6443static void
6444qeth_init_func_level(struct qeth_card *card)
6445{
6446 if (card->ipato.enabled) {
6447 if (card->info.type == QETH_CARD_TYPE_IQD)
6448 card->info.func_level =
6449 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6450 else
6451 card->info.func_level =
6452 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6453 } else {
6454 if (card->info.type == QETH_CARD_TYPE_IQD)
500f83ab 6455 /*FIXME:why do we have same values for dis and ena for osae??? */
1da177e4
LT		 6456 card->info.func_level =
6457 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6458 else
6459 card->info.func_level =
6460 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6461 }
6462}
6463
6464/**
6465 * hardsetup card, initialize MPC and QDIO stuff
6466 */
6467static int
6468qeth_hardsetup_card(struct qeth_card *card)
6469{
6470 int retries = 3;
6471 int rc;
6472
6473 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6474
6475retry:
6476 if (retries < 3){
6477 PRINT_WARN("Retrying to do IDX activates.\n");
6478 ccw_device_set_offline(CARD_DDEV(card));
6479 ccw_device_set_offline(CARD_WDEV(card));
6480 ccw_device_set_offline(CARD_RDEV(card));
6481 ccw_device_set_online(CARD_RDEV(card));
6482 ccw_device_set_online(CARD_WDEV(card));
6483 ccw_device_set_online(CARD_DDEV(card));
6484 }
500f83ab 6485 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 6486 if (rc == -ERESTARTSYS) {
6487 QETH_DBF_TEXT(setup, 2, "break1");
6488 return rc;
6489 } else if (rc) {
6490 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6491 if (--retries < 0)
6492 goto out;
6493 else
6494 goto retry;
6495 }
6496 if ((rc = qeth_get_unitaddr(card))){
6497 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6498 return rc;
6499 }
6500 qeth_init_tokens(card);
6501 qeth_init_func_level(card);
6502 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6503 if (rc == -ERESTARTSYS) {
6504 QETH_DBF_TEXT(setup, 2, "break2");
6505 return rc;
6506 } else if (rc) {
6507 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6508 if (--retries < 0)
6509 goto out;
6510 else
6511 goto retry;
6512 }
6513 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6514 if (rc == -ERESTARTSYS) {
6515 QETH_DBF_TEXT(setup, 2, "break3");
6516 return rc;
6517 } else if (rc) {
6518 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6519 if (--retries < 0)
6520 goto out;
6521 else
6522 goto retry;
6523 }
6524 if ((rc = qeth_mpc_initialize(card))){
6525 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6526 goto out;
6527 }
6528 /*network device will be recovered*/
6529 if (card->dev) {
6530 card->dev->hard_header = card->orig_hard_header;
e82b0f2c 6531 if (card->options.fake_ll &&
b85e1fa1
UB		 6532 (qeth_get_netdev_flags(card) & IFF_NOARP))
6533 card->dev->hard_header = qeth_fake_header;
1da177e4
LT		 6534 return 0;
6535 }
6536 /* at first set_online allocate netdev */
6537 card->dev = qeth_get_netdevice(card->info.type,
6538 card->info.link_type);
6539 if (!card->dev){
500f83ab
UB		 6540 qeth_qdio_clear_card(card, card->info.type !=
6541 QETH_CARD_TYPE_IQD);
1da177e4
LT		 6542 rc = -ENODEV;
6543 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6544 goto out;
6545 }
6546 card->dev->priv = card;
6547 card->orig_hard_header = card->dev->hard_header;
6548 card->dev->type = qeth_get_arphdr_type(card->info.type,
6549 card->info.link_type);
6550 card->dev->init = qeth_netdev_init;
6551 return 0;
6552out:
6553 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6554 return rc;
6555}
6556
6557static int
6558qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6559 unsigned long data)
6560{
6561 struct qeth_ipa_cmd *cmd;
6562
6563 QETH_DBF_TEXT(trace,4,"defadpcb");
6564
6565 cmd = (struct qeth_ipa_cmd *) data;
6566 if (cmd->hdr.return_code == 0){
6567 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6568 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6569 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6570#ifdef CONFIG_QETH_IPV6
6571 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6572 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6573#endif
6574 }
6575 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6576 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6577 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6578 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6579 }
6580 return 0;
6581}
6582
6583static int
6584qeth_default_setadapterparms_cb(struct qeth_card *card,
6585 struct qeth_reply *reply,
6586 unsigned long data)
6587{
6588 struct qeth_ipa_cmd *cmd;
6589
6590 QETH_DBF_TEXT(trace,4,"defadpcb");
6591
6592 cmd = (struct qeth_ipa_cmd *) data;
6593 if (cmd->hdr.return_code == 0)
6594 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6595 return 0;
6596}
6597
6c951b90
FP		 6598
6599
1da177e4
LT		 6600static int
6601qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6602 unsigned long data)
6603{
6604 struct qeth_ipa_cmd *cmd;
6605
6606 QETH_DBF_TEXT(trace,3,"quyadpcb");
6607
6608 cmd = (struct qeth_ipa_cmd *) data;
6609 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6610 card->info.link_type =
6611 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6612 card->options.adp.supported_funcs =
6613 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6614 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6615}
6616
6617static int
6618qeth_query_setadapterparms(struct qeth_card *card)
6619{
6620 int rc;
6621 struct qeth_cmd_buffer *iob;
6622
6623 QETH_DBF_TEXT(trace,3,"queryadp");
6624 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6625 sizeof(struct qeth_ipacmd_setadpparms));
6626 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6627 return rc;
6628}
6629
6630static int
6631qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6632 struct qeth_reply *reply,
6633 unsigned long data)
6634{
6635 struct qeth_ipa_cmd *cmd;
6636
6637 QETH_DBF_TEXT(trace,4,"chgmaccb");
6638
6639 cmd = (struct qeth_ipa_cmd *) data;
e08d88cc 6640 if (!card->options.layer2 || card->info.guestlan ||
e82b0f2c 6641 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
e08d88cc
FP		 6642 memcpy(card->dev->dev_addr,
6643 &cmd->data.setadapterparms.data.change_addr.addr,
6644 OSA_ADDR_LEN);
6645 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6646 }
1da177e4
LT		 6647 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6648 return 0;
6649}
6650
6651static int
6652qeth_setadpparms_change_macaddr(struct qeth_card *card)
6653{
6654 int rc;
6655 struct qeth_cmd_buffer *iob;
6656 struct qeth_ipa_cmd *cmd;
6657
6658 QETH_DBF_TEXT(trace,4,"chgmac");
6659
6660 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6661 sizeof(struct qeth_ipacmd_setadpparms));
6662 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6663 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6664 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6665 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6666 card->dev->dev_addr, OSA_ADDR_LEN);
6667 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6668 NULL);
6669 return rc;
6670}
6671
6672static int
6673qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6674{
6675 int rc;
6676 struct qeth_cmd_buffer *iob;
6677 struct qeth_ipa_cmd *cmd;
6678
6679 QETH_DBF_TEXT(trace,4,"adpmode");
6680
6681 iob = qeth_get_adapter_cmd(card, command,
6682 sizeof(struct qeth_ipacmd_setadpparms));
6683 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6684 cmd->data.setadapterparms.data.mode = mode;
6685 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6686 NULL);
6687 return rc;
6688}
6689
6690static inline int
6691qeth_setadapter_hstr(struct qeth_card *card)
6692{
6693 int rc;
6694
6695 QETH_DBF_TEXT(trace,4,"adphstr");
6696
6697 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6698 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6699 card->options.broadcast_mode);
6700 if (rc)
6701 PRINT_WARN("couldn't set broadcast mode on "
6702 "device %s: x%x\n",
6703 CARD_BUS_ID(card), rc);
6704 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6705 card->options.macaddr_mode);
6706 if (rc)
6707 PRINT_WARN("couldn't set macaddr mode on "
6708 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6709 return rc;
6710 }
6711 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6712 PRINT_WARN("set adapter parameters not available "
6713 "to set broadcast mode, using ALLRINGS "
6714 "on device %s:\n", CARD_BUS_ID(card));
6715 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6716 PRINT_WARN("set adapter parameters not available "
6717 "to set macaddr mode, using NONCANONICAL "
6718 "on device %s:\n", CARD_BUS_ID(card));
6719 return 0;
6720}
6721
6722static int
6723qeth_setadapter_parms(struct qeth_card *card)
6724{
6725 int rc;
6726
6727 QETH_DBF_TEXT(setup, 2, "setadprm");
6728
6729 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6730 PRINT_WARN("set adapter parameters not supported "
6731 "on device %s.\n",
6732 CARD_BUS_ID(card));
6733 QETH_DBF_TEXT(setup, 2, " notsupp");
6734 return 0;
6735 }
6736 rc = qeth_query_setadapterparms(card);
6737 if (rc) {
6738 PRINT_WARN("couldn't set adapter parameters on device %s: "
6739 "x%x\n", CARD_BUS_ID(card), rc);
6740 return rc;
6741 }
6742 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6743 rc = qeth_setadpparms_change_macaddr(card);
6744 if (rc)
6745 PRINT_WARN("couldn't get MAC address on "
6746 "device %s: x%x\n",
6747 CARD_BUS_ID(card), rc);
6748 }
6749
6750 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6751 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6752 rc = qeth_setadapter_hstr(card);
6753
6754 return rc;
6755}
6756
6757static int
6758qeth_layer2_initialize(struct qeth_card *card)
6759{
6760 int rc = 0;
6761
6762
6763 QETH_DBF_TEXT(setup, 2, "doL2init");
6764 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6765
6c951b90
FP		 6766 rc = qeth_query_setadapterparms(card);
6767 if (rc) {
6768 PRINT_WARN("could not query adapter parameters on device %s: "
6769 "x%x\n", CARD_BUS_ID(card), rc);
6770 }
6771
1da177e4
LT		 6772 rc = qeth_setadpparms_change_macaddr(card);
6773 if (rc) {
6774 PRINT_WARN("couldn't get MAC address on "
6775 "device %s: x%x\n",
6776 CARD_BUS_ID(card), rc);
6777 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6778 return rc;
6779 }
6780 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6781
6782 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6783 if (rc)
6784 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6785 return 0;
6786}
6787
6788
6789static int
6790qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6791 enum qeth_prot_versions prot)
6792{
6793 int rc;
6794 struct qeth_cmd_buffer *iob;
6795
6796 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6797 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6798
6799 return rc;
6800}
6801
6802static int
6803qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6804{
6805 int rc;
6806
6807 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6808
6809 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6810 return rc;
6811}
6812
6813static int
6814qeth_send_stoplan(struct qeth_card *card)
6815{
6816 int rc = 0;
6817
6818 /*
6819 * TODO: according to the IPA format document page 14,
6820 * TCP/IP (we!) never issue a STOPLAN
6821 * is this right ?!?
6822 */
6823 QETH_DBF_TEXT(trace, 2, "stoplan");
6824
6825 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6826 return rc;
6827}
6828
6829static int
6830qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6831 unsigned long data)
6832{
6833 struct qeth_ipa_cmd *cmd;
6834
6835 QETH_DBF_TEXT(setup, 2, "qipasscb");
6836
6837 cmd = (struct qeth_ipa_cmd *) data;
6838 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6839 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6840 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
9123e0d7
UB		 6841 /* Disable IPV6 support hard coded for Hipersockets */
6842 if(card->info.type == QETH_CARD_TYPE_IQD)
6843 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
1da177e4
LT		 6844 } else {
6845#ifdef CONFIG_QETH_IPV6
6846 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6847 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6848#endif
6849 }
6850 QETH_DBF_TEXT(setup, 2, "suppenbl");
6851 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6852 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6853 return 0;
6854}
6855
6856static int
6857qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6858{
6859 int rc;
6860 struct qeth_cmd_buffer *iob;
6861
6862 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6863 if (card->options.layer2) {
6864 QETH_DBF_TEXT(setup, 2, "noprmly2");
6865 return -EPERM;
6866 }
6867
6868 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6869 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6870 return rc;
6871}
6872
6873static struct qeth_cmd_buffer *
6874qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6875 __u16 cmd_code, __u16 len,
6876 enum qeth_prot_versions prot)
6877{
6878 struct qeth_cmd_buffer *iob;
6879 struct qeth_ipa_cmd *cmd;
6880
6881 QETH_DBF_TEXT(trace,4,"getasscm");
6882 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6883
6884 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6885 cmd->data.setassparms.hdr.assist_no = ipa_func;
6886 cmd->data.setassparms.hdr.length = 8 + len;
6887 cmd->data.setassparms.hdr.command_code = cmd_code;
6888 cmd->data.setassparms.hdr.return_code = 0;
6889 cmd->data.setassparms.hdr.seq_no = 0;
6890
6891 return iob;
6892}
6893
6894static int
6895qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6896 __u16 len, long data,
6897 int (*reply_cb)
6898 (struct qeth_card *,struct qeth_reply *,unsigned long),
6899 void *reply_param)
6900{
6901 int rc;
6902 struct qeth_ipa_cmd *cmd;
6903
6904 QETH_DBF_TEXT(trace,4,"sendassp");
6905
6906 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6907 if (len <= sizeof(__u32))
6908 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1380fee2 6909 else /* (len > sizeof(__u32)) */
1da177e4
LT		 6910 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6911
6912 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6913 return rc;
6914}
6915
6916#ifdef CONFIG_QETH_IPV6
6917static int
6918qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6919 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6920
6921{
6922 int rc;
6923 struct qeth_cmd_buffer *iob;
6924
6925 QETH_DBF_TEXT(trace,4,"simassp6");
6926 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6927 0, QETH_PROT_IPV6);
6928 rc = qeth_send_setassparms(card, iob, 0, 0,
6929 qeth_default_setassparms_cb, NULL);
6930 return rc;
6931}
6932#endif
6933
6934static int
6935qeth_send_simple_setassparms(struct qeth_card *card,
6936 enum qeth_ipa_funcs ipa_func,
6937 __u16 cmd_code, long data)
6938{
6939 int rc;
6940 int length = 0;
6941 struct qeth_cmd_buffer *iob;
6942
6943 QETH_DBF_TEXT(trace,4,"simassp4");
6944 if (data)
6945 length = sizeof(__u32);
6946 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6947 length, QETH_PROT_IPV4);
6948 rc = qeth_send_setassparms(card, iob, length, data,
6949 qeth_default_setassparms_cb, NULL);
6950 return rc;
6951}
6952
6953static inline int
6954qeth_start_ipa_arp_processing(struct qeth_card *card)
6955{
6956 int rc;
6957
6958 QETH_DBF_TEXT(trace,3,"ipaarp");
6959
6960 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6961 PRINT_WARN("ARP processing not supported "
6962 "on %s!\n", QETH_CARD_IFNAME(card));
6963 return 0;
6964 }
6965 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6966 IPA_CMD_ASS_START, 0);
6967 if (rc) {
6968 PRINT_WARN("Could not start ARP processing "
6969 "assist on %s: 0x%x\n",
6970 QETH_CARD_IFNAME(card), rc);
6971 }
6972 return rc;
6973}
6974
6975static int
6976qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6977{
6978 int rc;
6979
6980 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6981
6982 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6983 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6984 QETH_CARD_IFNAME(card));
6985 return -EOPNOTSUPP;
6986 }
6987
6988 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6989 IPA_CMD_ASS_START, 0);
6990 if (rc) {
6991 PRINT_WARN("Could not start Hardware IP fragmentation "
6992 "assist on %s: 0x%x\n",
6993 QETH_CARD_IFNAME(card), rc);
6994 } else
6995 PRINT_INFO("Hardware IP fragmentation enabled \n");
6996 return rc;
6997}
6998
6999static int
7000qeth_start_ipa_source_mac(struct qeth_card *card)
7001{
7002 int rc;
7003
7004 QETH_DBF_TEXT(trace,3,"stsrcmac");
7005
7006 if (!card->options.fake_ll)
7007 return -EOPNOTSUPP;
7008
7009 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7010 PRINT_INFO("Inbound source address not "
7011 "supported on %s\n", QETH_CARD_IFNAME(card));
7012 return -EOPNOTSUPP;
7013 }
7014
7015 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7016 IPA_CMD_ASS_START, 0);
7017 if (rc)
7018 PRINT_WARN("Could not start inbound source "
7019 "assist on %s: 0x%x\n",
7020 QETH_CARD_IFNAME(card), rc);
7021 return rc;
7022}
7023
7024static int
7025qeth_start_ipa_vlan(struct qeth_card *card)
7026{
7027 int rc = 0;
7028
7029 QETH_DBF_TEXT(trace,3,"strtvlan");
7030
7031#ifdef CONFIG_QETH_VLAN
7032 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7033 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7034 return -EOPNOTSUPP;
7035 }
7036
7037 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7038 IPA_CMD_ASS_START,0);
7039 if (rc) {
7040 PRINT_WARN("Could not start vlan "
7041 "assist on %s: 0x%x\n",
7042 QETH_CARD_IFNAME(card), rc);
7043 } else {
7044 PRINT_INFO("VLAN enabled \n");
7045 card->dev->features |=
7046 NETIF_F_HW_VLAN_FILTER |
7047 NETIF_F_HW_VLAN_TX |
7048 NETIF_F_HW_VLAN_RX;
7049 }
7050#endif /* QETH_VLAN */
7051 return rc;
7052}
7053
7054static int
7055qeth_start_ipa_multicast(struct qeth_card *card)
7056{
7057 int rc;
7058
7059 QETH_DBF_TEXT(trace,3,"stmcast");
7060
7061 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7062 PRINT_WARN("Multicast not supported on %s\n",
7063 QETH_CARD_IFNAME(card));
7064 return -EOPNOTSUPP;
7065 }
7066
7067 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7068 IPA_CMD_ASS_START,0);
7069 if (rc) {
7070 PRINT_WARN("Could not start multicast "
7071 "assist on %s: rc=%i\n",
7072 QETH_CARD_IFNAME(card), rc);
7073 } else {
7074 PRINT_INFO("Multicast enabled\n");
7075 card->dev->flags |= IFF_MULTICAST;
7076 }
7077 return rc;
7078}
7079
7080#ifdef CONFIG_QETH_IPV6
7081static int
7082qeth_softsetup_ipv6(struct qeth_card *card)
7083{
7084 int rc;
7085
7086 QETH_DBF_TEXT(trace,3,"softipv6");
7087
1da177e4
LT		 7088 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7089 if (rc) {
7090 PRINT_ERR("IPv6 startlan failed on %s\n",
7091 QETH_CARD_IFNAME(card));
7092 return rc;
7093 }
1da177e4
LT		 7094 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7095 if (rc) {
7096 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7097 QETH_CARD_IFNAME(card));
7098 return rc;
7099 }
7100 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7101 IPA_CMD_ASS_START, 3);
7102 if (rc) {
7103 PRINT_WARN("IPv6 start assist (version 4) failed "
7104 "on %s: 0x%x\n",
7105 QETH_CARD_IFNAME(card), rc);
7106 return rc;
7107 }
7108 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7109 IPA_CMD_ASS_START);
7110 if (rc) {
7111 PRINT_WARN("IPV6 start assist (version 6) failed "
7112 "on %s: 0x%x\n",
7113 QETH_CARD_IFNAME(card), rc);
7114 return rc;
7115 }
7116 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7117 IPA_CMD_ASS_START);
7118 if (rc) {
7119 PRINT_WARN("Could not enable passthrough "
7120 "on %s: 0x%x\n",
7121 QETH_CARD_IFNAME(card), rc);
7122 return rc;
7123 }
7124 PRINT_INFO("IPV6 enabled \n");
7125 return 0;
7126}
7127
7128#endif
7129
7130static int
7131qeth_start_ipa_ipv6(struct qeth_card *card)
7132{
7133 int rc = 0;
7134#ifdef CONFIG_QETH_IPV6
7135 QETH_DBF_TEXT(trace,3,"strtipv6");
7136
7137 if (!qeth_is_supported(card, IPA_IPV6)) {
7138 PRINT_WARN("IPv6 not supported on %s\n",
7139 QETH_CARD_IFNAME(card));
7140 return 0;
7141 }
7142 rc = qeth_softsetup_ipv6(card);
7143#endif
7144 return rc ;
7145}
7146
7147static int
7148qeth_start_ipa_broadcast(struct qeth_card *card)
7149{
7150 int rc;
7151
7152 QETH_DBF_TEXT(trace,3,"stbrdcst");
7153 card->info.broadcast_capable = 0;
7154 if (!qeth_is_supported(card, IPA_FILTERING)) {
7155 PRINT_WARN("Broadcast not supported on %s\n",
7156 QETH_CARD_IFNAME(card));
7157 rc = -EOPNOTSUPP;
7158 goto out;
7159 }
7160 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7161 IPA_CMD_ASS_START, 0);
7162 if (rc) {
7163 PRINT_WARN("Could not enable broadcasting filtering "
7164 "on %s: 0x%x\n",
7165 QETH_CARD_IFNAME(card), rc);
7166 goto out;
7167 }
7168
7169 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7170 IPA_CMD_ASS_CONFIGURE, 1);
7171 if (rc) {
7172 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7173 QETH_CARD_IFNAME(card), rc);
7174 goto out;
7175 }
7176 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7177 PRINT_INFO("Broadcast enabled \n");
7178 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7179 IPA_CMD_ASS_ENABLE, 1);
7180 if (rc) {
7181 PRINT_WARN("Could not set up broadcast echo filtering on "
7182 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7183 goto out;
7184 }
7185 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7186out:
7187 if (card->info.broadcast_capable)
7188 card->dev->flags |= IFF_BROADCAST;
7189 else
7190 card->dev->flags &= ~IFF_BROADCAST;
7191 return rc;
7192}
7193
7194static int
7195qeth_send_checksum_command(struct qeth_card *card)
7196{
7197 int rc;
7198
7199 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7200 IPA_CMD_ASS_START, 0);
7201 if (rc) {
7202 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7203 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7204 QETH_CARD_IFNAME(card), rc);
7205 return rc;
7206 }
7207 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7208 IPA_CMD_ASS_ENABLE,
7209 card->info.csum_mask);
7210 if (rc) {
7211 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7212 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7213 QETH_CARD_IFNAME(card), rc);
7214 return rc;
7215 }
7216 return 0;
7217}
7218
7219static int
7220qeth_start_ipa_checksum(struct qeth_card *card)
7221{
7222 int rc = 0;
7223
7224 QETH_DBF_TEXT(trace,3,"strtcsum");
7225
7226 if (card->options.checksum_type == NO_CHECKSUMMING) {
7227 PRINT_WARN("Using no checksumming on %s.\n",
7228 QETH_CARD_IFNAME(card));
7229 return 0;
7230 }
7231 if (card->options.checksum_type == SW_CHECKSUMMING) {
7232 PRINT_WARN("Using SW checksumming on %s.\n",
7233 QETH_CARD_IFNAME(card));
7234 return 0;
7235 }
7236 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7237 PRINT_WARN("Inbound HW Checksumming not "
7238 "supported on %s,\ncontinuing "
7239 "using Inbound SW Checksumming\n",
7240 QETH_CARD_IFNAME(card));
7241 card->options.checksum_type = SW_CHECKSUMMING;
7242 return 0;
7243 }
7244 rc = qeth_send_checksum_command(card);
7245 if (!rc) {
7246 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7247 }
7248 return rc;
7249}
7250
7251static int
7252qeth_start_ipa_tso(struct qeth_card *card)
7253{
7254 int rc;
7255
7256 QETH_DBF_TEXT(trace,3,"sttso");
7257
7258 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7259 PRINT_WARN("Outbound TSO not supported on %s\n",
7260 QETH_CARD_IFNAME(card));
7261 rc = -EOPNOTSUPP;
7262 } else {
7263 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7264 IPA_CMD_ASS_START,0);
7265 if (rc)
7266 PRINT_WARN("Could not start outbound TSO "
7267 "assist on %s: rc=%i\n",
7268 QETH_CARD_IFNAME(card), rc);
7269 else
7270 PRINT_INFO("Outbound TSO enabled\n");
7271 }
7272 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7273 card->options.large_send = QETH_LARGE_SEND_NO;
7274 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7275 }
7276 return rc;
7277}
7278
7279static int
7280qeth_start_ipassists(struct qeth_card *card)
7281{
7282 QETH_DBF_TEXT(trace,3,"strtipas");
7283 qeth_start_ipa_arp_processing(card); /* go on*/
7284 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7285 qeth_start_ipa_source_mac(card); /* go on*/
7286 qeth_start_ipa_vlan(card); /* go on*/
7287 qeth_start_ipa_multicast(card); /* go on*/
7288 qeth_start_ipa_ipv6(card); /* go on*/
7289 qeth_start_ipa_broadcast(card); /* go on*/
7290 qeth_start_ipa_checksum(card); /* go on*/
7291 qeth_start_ipa_tso(card); /* go on*/
7292 return 0;
7293}
7294
7295static int
7296qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7297 enum qeth_prot_versions prot)
7298{
7299 int rc;
7300 struct qeth_ipa_cmd *cmd;
7301 struct qeth_cmd_buffer *iob;
7302
7303 QETH_DBF_TEXT(trace,4,"setroutg");
7304 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7305 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7306 cmd->data.setrtg.type = (type);
7307 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7308
7309 return rc;
7310
7311}
7312
7313static void
7314qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7315 enum qeth_prot_versions prot)
7316{
7317 if (card->info.type == QETH_CARD_TYPE_IQD) {
7318 switch (*type) {
7319 case NO_ROUTER:
7320 case PRIMARY_CONNECTOR:
7321 case SECONDARY_CONNECTOR:
7322 case MULTICAST_ROUTER:
7323 return;
7324 default:
7325 goto out_inval;
7326 }
7327 } else {
7328 switch (*type) {
7329 case NO_ROUTER:
7330 case PRIMARY_ROUTER:
7331 case SECONDARY_ROUTER:
7332 return;
7333 case MULTICAST_ROUTER:
7334 if (qeth_is_ipafunc_supported(card, prot,
7335 IPA_OSA_MC_ROUTER))
7336 return;
7337 default:
7338 goto out_inval;
7339 }
7340 }
7341out_inval:
7342 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7343 "Router status set to 'no router'.\n",
7344 ((*type == PRIMARY_ROUTER)? "primary router" :
7345 (*type == SECONDARY_ROUTER)? "secondary router" :
7346 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7347 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7348 (*type == MULTICAST_ROUTER)? "multicast router" :
7349 "unknown"),
7350 card->dev->name);
7351 *type = NO_ROUTER;
7352}
7353
7354int
7355qeth_setrouting_v4(struct qeth_card *card)
7356{
7357 int rc;
7358
7359 QETH_DBF_TEXT(trace,3,"setrtg4");
7360
7361 qeth_correct_routing_type(card, &card->options.route4.type,
7362 QETH_PROT_IPV4);
7363
7364 rc = qeth_send_setrouting(card, card->options.route4.type,
7365 QETH_PROT_IPV4);
7366 if (rc) {
7367 card->options.route4.type = NO_ROUTER;
7368 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7369 "Type set to 'no router'.\n",
7370 rc, QETH_CARD_IFNAME(card));
7371 }
7372 return rc;
7373}
7374
7375int
7376qeth_setrouting_v6(struct qeth_card *card)
7377{
7378 int rc = 0;
7379
7380 QETH_DBF_TEXT(trace,3,"setrtg6");
7381#ifdef CONFIG_QETH_IPV6
7382
8b98a37c
FP		 7383 if (!qeth_is_supported(card, IPA_IPV6))
7384 return 0;
1da177e4
LT		 7385 qeth_correct_routing_type(card, &card->options.route6.type,
7386 QETH_PROT_IPV6);
7387
1da177e4
LT		 7388 rc = qeth_send_setrouting(card, card->options.route6.type,
7389 QETH_PROT_IPV6);
7390 if (rc) {
7391 card->options.route6.type = NO_ROUTER;
7392 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7393 "Type set to 'no router'.\n",
7394 rc, QETH_CARD_IFNAME(card));
7395 }
7396#endif
7397 return rc;
7398}
7399
7400int
9cb90de8 7401qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
1da177e4
LT		 7402{
7403 int rc = 0;
7404
9cb90de8
FP		 7405 if (card->dev == NULL) {
7406 card->options.large_send = type;
1da177e4 7407 return 0;
9cb90de8 7408 }
b85e1fa1
UB		 7409 if (card->state == CARD_STATE_UP)
7410 netif_tx_disable(card->dev);
9cb90de8 7411 card->options.large_send = type;
1da177e4
LT		 7412 switch (card->options.large_send) {
7413 case QETH_LARGE_SEND_EDDP:
7414 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7415 break;
7416 case QETH_LARGE_SEND_TSO:
7417 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7418 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7419 } else {
7420 PRINT_WARN("TSO not supported on %s. "
7421 "large_send set to 'no'.\n",
7422 card->dev->name);
7423 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7424 card->options.large_send = QETH_LARGE_SEND_NO;
7425 rc = -EOPNOTSUPP;
7426 }
7427 break;
7428 default: /* includes QETH_LARGE_SEND_NO */
7429 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7430 break;
7431 }
b85e1fa1
UB		 7432 if (card->state == CARD_STATE_UP)
7433 netif_wake_queue(card->dev);
1da177e4
LT		 7434 return rc;
7435}
7436
7437/*
7438 * softsetup card: init IPA stuff
7439 */
7440static int
7441qeth_softsetup_card(struct qeth_card *card)
7442{
7443 int rc;
7444
7445 QETH_DBF_TEXT(setup, 2, "softsetp");
7446
7447 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7448 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7449 if (rc == 0xe080){
7450 PRINT_WARN("LAN on card %s if offline! "
7451 "Continuing softsetup.\n",
7452 CARD_BUS_ID(card));
7453 card->lan_online = 0;
7454 } else
7455 return rc;
7456 } else
7457 card->lan_online = 1;
500f83ab
UB		 7458 if (card->info.type==QETH_CARD_TYPE_OSN)
7459 goto out;
66cc5d5a 7460 qeth_set_large_send(card, card->options.large_send);
1da177e4
LT		 7461 if (card->options.layer2) {
7462 card->dev->features |=
7463 NETIF_F_HW_VLAN_FILTER |
7464 NETIF_F_HW_VLAN_TX |
7465 NETIF_F_HW_VLAN_RX;
7466 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7467 card->info.broadcast_capable=1;
7468 if ((rc = qeth_layer2_initialize(card))) {
7469 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7470 return rc;
7471 }
7472#ifdef CONFIG_QETH_VLAN
7473 qeth_layer2_process_vlans(card, 0);
7474#endif
7475 goto out;
7476 }
1da177e4
LT		 7477 if ((rc = qeth_setadapter_parms(card)))
7478 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7479 if ((rc = qeth_start_ipassists(card)))
7480 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7481 if ((rc = qeth_setrouting_v4(card)))
7482 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7483 if ((rc = qeth_setrouting_v6(card)))
7484 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7485out:
b85e1fa1 7486 netif_tx_disable(card->dev);
1da177e4
LT		 7487 return 0;
7488}
7489
7490#ifdef CONFIG_QETH_IPV6
7491static int
7492qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7493 unsigned long data)
7494{
7495 struct qeth_ipa_cmd *cmd;
7496
7497 cmd = (struct qeth_ipa_cmd *) data;
7498 if (cmd->hdr.return_code == 0)
7499 card->info.unique_id = *((__u16 *)
7500 &cmd->data.create_destroy_addr.unique_id[6]);
7501 else {
7502 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7503 UNIQUE_ID_NOT_BY_CARD;
7504 PRINT_WARN("couldn't get a unique id from the card on device "
7505 "%s (result=x%x), using default id. ipv6 "
7506 "autoconfig on other lpars may lead to duplicate "
7507 "ip addresses. please use manually "
7508 "configured ones.\n",
7509 CARD_BUS_ID(card), cmd->hdr.return_code);
7510 }
7511 return 0;
7512}
7513#endif
7514
7515static int
7516qeth_put_unique_id(struct qeth_card *card)
7517{
7518
7519 int rc = 0;
7520#ifdef CONFIG_QETH_IPV6
7521 struct qeth_cmd_buffer *iob;
7522 struct qeth_ipa_cmd *cmd;
7523
7524 QETH_DBF_TEXT(trace,2,"puniqeid");
7525
7526 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7527 UNIQUE_ID_NOT_BY_CARD)
7528 return -1;
7529 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7530 QETH_PROT_IPV6);
7531 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7532 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7533 card->info.unique_id;
7534 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7535 card->dev->dev_addr, OSA_ADDR_LEN);
7536 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7537#else
7538 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7539 UNIQUE_ID_NOT_BY_CARD;
7540#endif
7541 return rc;
7542}
7543
7544/**
7545 * Clear IP List
7546 */
7547static void
7548qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7549{
7550 struct qeth_ipaddr *addr, *tmp;
7551 unsigned long flags;
7552
7553 QETH_DBF_TEXT(trace,4,"clearip");
7554 spin_lock_irqsave(&card->ip_lock, flags);
7555 /* clear todo list */
7556 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7557 list_del(&addr->entry);
7558 kfree(addr);
7559 }
7560
7561 while (!list_empty(&card->ip_list)) {
7562 addr = list_entry(card->ip_list.next,
7563 struct qeth_ipaddr, entry);
7564 list_del_init(&addr->entry);
7565 if (clean) {
7566 spin_unlock_irqrestore(&card->ip_lock, flags);
7567 qeth_deregister_addr_entry(card, addr);
7568 spin_lock_irqsave(&card->ip_lock, flags);
7569 }
7570 if (!recover || addr->is_multicast) {
7571 kfree(addr);
7572 continue;
7573 }
7574 list_add_tail(&addr->entry, card->ip_tbd_list);
7575 }
7576 spin_unlock_irqrestore(&card->ip_lock, flags);
7577}
7578
7579static void
7580qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7581 int clear_start_mask)
7582{
7583 unsigned long flags;
7584
7585 spin_lock_irqsave(&card->thread_mask_lock, flags);
7586 card->thread_allowed_mask = threads;
7587 if (clear_start_mask)
7588 card->thread_start_mask &= threads;
7589 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7590 wake_up(&card->wait_q);
7591}
7592
7593static inline int
7594qeth_threads_running(struct qeth_card *card, unsigned long threads)
7595{
7596 unsigned long flags;
7597 int rc = 0;
7598
7599 spin_lock_irqsave(&card->thread_mask_lock, flags);
7600 rc = (card->thread_running_mask & threads);
7601 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7602 return rc;
7603}
7604
7605static int
7606qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7607{
7608 return wait_event_interruptible(card->wait_q,
7609 qeth_threads_running(card, threads) == 0);
7610}
7611
7612static int
05e08a2a 7613qeth_stop_card(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7614{
7615 int rc = 0;
7616
7617 QETH_DBF_TEXT(setup ,2,"stopcard");
7618 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7619
7620 qeth_set_allowed_threads(card, 0, 1);
7621 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7622 return -ERESTARTSYS;
7623 if (card->read.state == CH_STATE_UP &&
7624 card->write.state == CH_STATE_UP &&
7625 (card->state == CARD_STATE_UP)) {
e82b0f2c 7626 if (recovery_mode &&
500f83ab 7627 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7628 qeth_stop(card->dev);
7629 } else {
7630 rtnl_lock();
7631 dev_close(card->dev);
7632 rtnl_unlock();
7633 }
1da177e4
LT		 7634 if (!card->use_hard_stop) {
7635 __u8 *mac = &card->dev->dev_addr[0];
7636 rc = qeth_layer2_send_delmac(card, mac);
7637 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7638 if ((rc = qeth_send_stoplan(card)))
7639 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7640 }
7641 card->state = CARD_STATE_SOFTSETUP;
7642 }
7643 if (card->state == CARD_STATE_SOFTSETUP) {
7644#ifdef CONFIG_QETH_VLAN
7645 if (card->options.layer2)
7646 qeth_layer2_process_vlans(card, 1);
7647#endif
7648 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7649 qeth_clear_ipacmd_list(card);
7650 card->state = CARD_STATE_HARDSETUP;
7651 }
7652 if (card->state == CARD_STATE_HARDSETUP) {
7653 if ((!card->use_hard_stop) &&
7654 (!card->options.layer2))
7655 if ((rc = qeth_put_unique_id(card)))
7656 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7657 qeth_qdio_clear_card(card, 0);
7658 qeth_clear_qdio_buffers(card);
7659 qeth_clear_working_pool_list(card);
7660 card->state = CARD_STATE_DOWN;
7661 }
7662 if (card->state == CARD_STATE_DOWN) {
7663 qeth_clear_cmd_buffers(&card->read);
7664 qeth_clear_cmd_buffers(&card->write);
7665 }
7666 card->use_hard_stop = 0;
7667 return rc;
7668}
7669
7670
7671static int
7672qeth_get_unique_id(struct qeth_card *card)
7673{
7674 int rc = 0;
7675#ifdef CONFIG_QETH_IPV6
7676 struct qeth_cmd_buffer *iob;
7677 struct qeth_ipa_cmd *cmd;
7678
7679 QETH_DBF_TEXT(setup, 2, "guniqeid");
7680
7681 if (!qeth_is_supported(card,IPA_IPV6)) {
7682 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7683 UNIQUE_ID_NOT_BY_CARD;
7684 return 0;
7685 }
7686
7687 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7688 QETH_PROT_IPV6);
7689 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7690 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7691 card->info.unique_id;
7692
7693 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7694#else
7695 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7696 UNIQUE_ID_NOT_BY_CARD;
7697#endif
7698 return rc;
7699}
7700static void
7701qeth_print_status_with_portname(struct qeth_card *card)
7702{
7703 char dbf_text[15];
7704 int i;
7705
7706 sprintf(dbf_text, "%s", card->info.portname + 1);
7707 for (i = 0; i < 8; i++)
7708 dbf_text[i] =
7709 (char) _ebcasc[(__u8) dbf_text[i]];
7710 dbf_text[8] = 0;
7711 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7712 "with link type %s (portname: %s)\n",
7713 CARD_RDEV_ID(card),
7714 CARD_WDEV_ID(card),
7715 CARD_DDEV_ID(card),
7716 qeth_get_cardname(card),
7717 (card->info.mcl_level[0]) ? " (level: " : "",
7718 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7719 (card->info.mcl_level[0]) ? ")" : "",
7720 qeth_get_cardname_short(card),
7721 dbf_text);
7722
7723}
7724
7725static void
7726qeth_print_status_no_portname(struct qeth_card *card)
7727{
7728 if (card->info.portname[0])
7729 printk("qeth: Device %s/%s/%s is a%s "
7730 "card%s%s%s\nwith link type %s "
7731 "(no portname needed by interface).\n",
7732 CARD_RDEV_ID(card),
7733 CARD_WDEV_ID(card),
7734 CARD_DDEV_ID(card),
7735 qeth_get_cardname(card),
7736 (card->info.mcl_level[0]) ? " (level: " : "",
7737 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7738 (card->info.mcl_level[0]) ? ")" : "",
7739 qeth_get_cardname_short(card));
7740 else
7741 printk("qeth: Device %s/%s/%s is a%s "
7742 "card%s%s%s\nwith link type %s.\n",
7743 CARD_RDEV_ID(card),
7744 CARD_WDEV_ID(card),
7745 CARD_DDEV_ID(card),
7746 qeth_get_cardname(card),
7747 (card->info.mcl_level[0]) ? " (level: " : "",
7748 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7749 (card->info.mcl_level[0]) ? ")" : "",
7750 qeth_get_cardname_short(card));
7751}
7752
7753static void
7754qeth_print_status_message(struct qeth_card *card)
7755{
7756 switch (card->info.type) {
7757 case QETH_CARD_TYPE_OSAE:
7758 /* VM will use a non-zero first character
7759 * to indicate a HiperSockets like reporting
7760 * of the level OSA sets the first character to zero
7761 * */
7762 if (!card->info.mcl_level[0]) {
7763 sprintf(card->info.mcl_level,"%02x%02x",
7764 card->info.mcl_level[2],
7765 card->info.mcl_level[3]);
7766
7767 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7768 break;
7769 }
7770 /* fallthrough */
7771 case QETH_CARD_TYPE_IQD:
7772 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7773 card->info.mcl_level[0]];
7774 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7775 card->info.mcl_level[1]];
7776 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7777 card->info.mcl_level[2]];
7778 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7779 card->info.mcl_level[3]];
7780 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7781 break;
7782 default:
7783 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7784 }
7785 if (card->info.portname_required)
7786 qeth_print_status_with_portname(card);
7787 else
7788 qeth_print_status_no_portname(card);
7789}
7790
7791static int
7792qeth_register_netdev(struct qeth_card *card)
7793{
7794 QETH_DBF_TEXT(setup, 3, "regnetd");
e82b0f2c 7795 if (card->dev->reg_state != NETREG_UNINITIALIZED)
1da177e4 7796 return 0;
1da177e4
LT		 7797 /* sysfs magic */
7798 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7799 return register_netdev(card->dev);
7800}
7801
7802static void
05e08a2a 7803qeth_start_again(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7804{
7805 QETH_DBF_TEXT(setup ,2, "startag");
7806
e82b0f2c 7807 if (recovery_mode &&
500f83ab 7808 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7809 qeth_open(card->dev);
7810 } else {
7811 rtnl_lock();
7812 dev_open(card->dev);
7813 rtnl_unlock();
7814 }
1da177e4
LT		 7815 /* this also sets saved unicast addresses */
7816 qeth_set_multicast_list(card->dev);
7817}
7818
7819
7820/* Layer 2 specific stuff */
7821#define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7822 if (card->options.option == value) { \
7823 PRINT_ERR("%s not supported with layer 2 " \
7824 "functionality, ignoring option on read" \
7825 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7826 card->options.option = reset_value; \
7827 }
7828#define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7829 if (card->options.option != value) { \
7830 PRINT_ERR("%s not supported with layer 2 " \
7831 "functionality, ignoring option on read" \
7832 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7833 card->options.option = reset_value; \
7834 }
7835
7836
7837static void qeth_make_parameters_consistent(struct qeth_card *card)
7838{
7839
500f83ab
UB		 7840 if (card->options.layer2 == 0)
7841 return;
7842 if (card->info.type == QETH_CARD_TYPE_OSN)
7843 return;
7844 if (card->info.type == QETH_CARD_TYPE_IQD) {
7845 PRINT_ERR("Device %s does not support layer 2 functionality." \
7846 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7847 card->options.layer2 = 0;
7848 return;
7849 }
7850 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7851 "Routing options are");
1da177e4 7852#ifdef CONFIG_QETH_IPV6
500f83ab
UB		 7853 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7854 "Routing options are");
1da177e4 7855#endif
500f83ab
UB		 7856 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7857 QETH_CHECKSUM_DEFAULT,
7858 "Checksumming options are");
7859 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7860 QETH_TR_BROADCAST_ALLRINGS,
7861 "Broadcast mode options are");
7862 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7863 QETH_TR_MACADDR_NONCANONICAL,
7864 "Canonical MAC addr options are");
7865 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7866 "Broadcast faking options are");
7867 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7868 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7869 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
1da177e4
LT		 7870}
7871
7872
7873static int
05e08a2a 7874__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1da177e4
LT		 7875{
7876 struct qeth_card *card = gdev->dev.driver_data;
7877 int rc = 0;
7878 enum qeth_card_states recover_flag;
7879
7880 BUG_ON(!card);
7881 QETH_DBF_TEXT(setup ,2, "setonlin");
7882 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7883
7884 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7885 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7886 PRINT_WARN("set_online of card %s interrupted by user!\n",
7887 CARD_BUS_ID(card));
7888 return -ERESTARTSYS;
7889 }
7890
7891 recover_flag = card->state;
7892 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7893 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7894 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7895 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7896 return -EIO;
7897 }
7898
500f83ab 7899 qeth_make_parameters_consistent(card);
1da177e4
LT		 7900
7901 if ((rc = qeth_hardsetup_card(card))){
7902 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7903 goto out_remove;
7904 }
7905 card->state = CARD_STATE_HARDSETUP;
7906
7907 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7908 rc = qeth_get_unique_id(card);
7909
7910 if (rc && card->options.layer2 == 0) {
7911 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7912 goto out_remove;
7913 }
7914 qeth_print_status_message(card);
7915 if ((rc = qeth_register_netdev(card))){
7916 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7917 goto out_remove;
7918 }
7919 if ((rc = qeth_softsetup_card(card))){
7920 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7921 goto out_remove;
7922 }
1da177e4
LT		 7923
7924 if ((rc = qeth_init_qdio_queues(card))){
7925 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7926 goto out_remove;
7927 }
09d2d38a 7928 card->state = CARD_STATE_SOFTSETUP;
4965e97f
FP		 7929 netif_carrier_on(card->dev);
7930
1da177e4
LT		 7931 qeth_set_allowed_threads(card, 0xffffffff, 0);
7932 if (recover_flag == CARD_STATE_RECOVER)
05e08a2a 7933 qeth_start_again(card, recovery_mode);
1da177e4
LT		 7934 qeth_notify_processes();
7935 return 0;
7936out_remove:
7937 card->use_hard_stop = 1;
05e08a2a 7938 qeth_stop_card(card, 0);
1da177e4
LT		 7939 ccw_device_set_offline(CARD_DDEV(card));
7940 ccw_device_set_offline(CARD_WDEV(card));
7941 ccw_device_set_offline(CARD_RDEV(card));
7942 if (recover_flag == CARD_STATE_RECOVER)
7943 card->state = CARD_STATE_RECOVER;
7944 else
7945 card->state = CARD_STATE_DOWN;
7946 return -ENODEV;
7947}
7948
05e08a2a
FP		 7949static int
7950qeth_set_online(struct ccwgroup_device *gdev)
7951{
7952 return __qeth_set_online(gdev, 0);
7953}
7954
1da177e4 7955static struct ccw_device_id qeth_ids[] = {
d2c993d8
HC		 7956 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7957 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7958 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
1da177e4
LT		 7959 {},
7960};
7961MODULE_DEVICE_TABLE(ccw, qeth_ids);
7962
7963struct device *qeth_root_dev = NULL;
7964
7965struct ccwgroup_driver qeth_ccwgroup_driver = {
7966 .owner = THIS_MODULE,
7967 .name = "qeth",
7968 .driver_id = 0xD8C5E3C8,
7969 .probe = qeth_probe_device,
7970 .remove = qeth_remove_device,
7971 .set_online = qeth_set_online,
7972 .set_offline = qeth_set_offline,
7973};
7974
7975struct ccw_driver qeth_ccw_driver = {
7976 .name = "qeth",
7977 .ids = qeth_ids,
7978 .probe = ccwgroup_probe_ccwdev,
7979 .remove = ccwgroup_remove_ccwdev,
7980};
7981
7982
7983static void
7984qeth_unregister_dbf_views(void)
7985{
7986 if (qeth_dbf_setup)
7987 debug_unregister(qeth_dbf_setup);
7988 if (qeth_dbf_qerr)
7989 debug_unregister(qeth_dbf_qerr);
7990 if (qeth_dbf_sense)
7991 debug_unregister(qeth_dbf_sense);
7992 if (qeth_dbf_misc)
7993 debug_unregister(qeth_dbf_misc);
7994 if (qeth_dbf_data)
7995 debug_unregister(qeth_dbf_data);
7996 if (qeth_dbf_control)
7997 debug_unregister(qeth_dbf_control);
7998 if (qeth_dbf_trace)
7999 debug_unregister(qeth_dbf_trace);
8000}
8001static int
8002qeth_register_dbf_views(void)
8003{
8004 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
66a464db 8005 QETH_DBF_SETUP_PAGES,
1da177e4
LT		 8006 QETH_DBF_SETUP_NR_AREAS,
8007 QETH_DBF_SETUP_LEN);
8008 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
66a464db 8009 QETH_DBF_MISC_PAGES,
1da177e4
LT		 8010 QETH_DBF_MISC_NR_AREAS,
8011 QETH_DBF_MISC_LEN);
8012 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
66a464db 8013 QETH_DBF_DATA_PAGES,
1da177e4
LT		 8014 QETH_DBF_DATA_NR_AREAS,
8015 QETH_DBF_DATA_LEN);
8016 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
66a464db 8017 QETH_DBF_CONTROL_PAGES,
1da177e4
LT		 8018 QETH_DBF_CONTROL_NR_AREAS,
8019 QETH_DBF_CONTROL_LEN);
8020 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
66a464db 8021 QETH_DBF_SENSE_PAGES,
1da177e4
LT		 8022 QETH_DBF_SENSE_NR_AREAS,
8023 QETH_DBF_SENSE_LEN);
8024 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
66a464db 8025 QETH_DBF_QERR_PAGES,
1da177e4
LT		 8026 QETH_DBF_QERR_NR_AREAS,
8027 QETH_DBF_QERR_LEN);
8028 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
66a464db 8029 QETH_DBF_TRACE_PAGES,
1da177e4
LT		 8030 QETH_DBF_TRACE_NR_AREAS,
8031 QETH_DBF_TRACE_LEN);
8032
8033 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
8034 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
8035 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
8036 (qeth_dbf_trace == NULL)) {
8037 qeth_unregister_dbf_views();
8038 return -ENOMEM;
8039 }
8040 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8041 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8042
8043 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8044 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8045
8046 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8047 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8048
8049 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8050 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8051
8052 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8053 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8054
8055 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8056 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8057
8058 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8059 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8060
8061 return 0;
8062}
8063
8064#ifdef CONFIG_QETH_IPV6
8065extern struct neigh_table arp_tbl;
8066static struct neigh_ops *arp_direct_ops;
8067static int (*qeth_old_arp_constructor) (struct neighbour *);
8068
8069static struct neigh_ops arp_direct_ops_template = {
8070 .family = AF_INET,
1da177e4
LT		 8071 .solicit = NULL,
8072 .error_report = NULL,
8073 .output = dev_queue_xmit,
8074 .connected_output = dev_queue_xmit,
8075 .hh_output = dev_queue_xmit,
8076 .queue_xmit = dev_queue_xmit
8077};
8078
8079static int
8080qeth_arp_constructor(struct neighbour *neigh)
8081{
8082 struct net_device *dev = neigh->dev;
8083 struct in_device *in_dev;
8084 struct neigh_parms *parms;
8085 struct qeth_card *card;
8086
8087 card = qeth_get_card_from_dev(dev);
8088 if (card == NULL)
8089 goto out;
8090 if((card->options.layer2) ||
8091 (card->dev->hard_header == qeth_fake_header))
8092 goto out;
8093
8094 rcu_read_lock();
e5ed6399 8095 in_dev = __in_dev_get_rcu(dev);
1da177e4
LT		 8096 if (in_dev == NULL) {
8097 rcu_read_unlock();
8098 return -EINVAL;
8099 }
8100
8101 parms = in_dev->arp_parms;
8102 __neigh_parms_put(neigh->parms);
8103 neigh->parms = neigh_parms_clone(parms);
8104 rcu_read_unlock();
8105
fd683222 8106 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
1da177e4
LT		 8107 neigh->nud_state = NUD_NOARP;
8108 neigh->ops = arp_direct_ops;
8109 neigh->output = neigh->ops->queue_xmit;
8110 return 0;
8111out:
8112 return qeth_old_arp_constructor(neigh);
8113}
8114#endif /*CONFIG_QETH_IPV6*/
8115
8116/*
8117 * IP address takeover related functions
8118 */
8119static void
8120qeth_clear_ipato_list(struct qeth_card *card)
8121{
8122 struct qeth_ipato_entry *ipatoe, *tmp;
8123 unsigned long flags;
8124
8125 spin_lock_irqsave(&card->ip_lock, flags);
8126 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8127 list_del(&ipatoe->entry);
8128 kfree(ipatoe);
8129 }
8130 spin_unlock_irqrestore(&card->ip_lock, flags);
8131}
8132
8133int
8134qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8135{
8136 struct qeth_ipato_entry *ipatoe;
8137 unsigned long flags;
8138 int rc = 0;
8139
8140 QETH_DBF_TEXT(trace, 2, "addipato");
8141 spin_lock_irqsave(&card->ip_lock, flags);
8142 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8143 if (ipatoe->proto != new->proto)
8144 continue;
8145 if (!memcmp(ipatoe->addr, new->addr,
8146 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8147 (ipatoe->mask_bits == new->mask_bits)){
8148 PRINT_WARN("ipato entry already exists!\n");
8149 rc = -EEXIST;
8150 break;
8151 }
8152 }
8153 if (!rc) {
8154 list_add_tail(&new->entry, &card->ipato.entries);
8155 }
8156 spin_unlock_irqrestore(&card->ip_lock, flags);
8157 return rc;
8158}
8159
8160void
8161qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8162 u8 *addr, int mask_bits)
8163{
8164 struct qeth_ipato_entry *ipatoe, *tmp;
8165 unsigned long flags;
8166
8167 QETH_DBF_TEXT(trace, 2, "delipato");
8168 spin_lock_irqsave(&card->ip_lock, flags);
8169 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8170 if (ipatoe->proto != proto)
8171 continue;
8172 if (!memcmp(ipatoe->addr, addr,
8173 (proto == QETH_PROT_IPV4)? 4:16) &&
8174 (ipatoe->mask_bits == mask_bits)){
8175 list_del(&ipatoe->entry);
8176 kfree(ipatoe);
8177 }
8178 }
8179 spin_unlock_irqrestore(&card->ip_lock, flags);
8180}
8181
8182static inline void
8183qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8184{
8185 int i, j;
8186 u8 octet;
8187
8188 for (i = 0; i < len; ++i){
8189 octet = addr[i];
8190 for (j = 7; j >= 0; --j){
8191 bits[i*8 + j] = octet & 1;
8192 octet >>= 1;
8193 }
8194 }
8195}
8196
8197static int
8198qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8199{
8200 struct qeth_ipato_entry *ipatoe;
8201 u8 addr_bits[128] = {0, };
8202 u8 ipatoe_bits[128] = {0, };
8203 int rc = 0;
8204
8205 if (!card->ipato.enabled)
8206 return 0;
8207
8208 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8209 (addr->proto == QETH_PROT_IPV4)? 4:16);
8210 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8211 if (addr->proto != ipatoe->proto)
8212 continue;
8213 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8214 (ipatoe->proto==QETH_PROT_IPV4) ?
8215 4:16);
8216 if (addr->proto == QETH_PROT_IPV4)
8217 rc = !memcmp(addr_bits, ipatoe_bits,
8218 min(32, ipatoe->mask_bits));
8219 else
8220 rc = !memcmp(addr_bits, ipatoe_bits,
8221 min(128, ipatoe->mask_bits));
8222 if (rc)
8223 break;
8224 }
8225 /* invert? */
8226 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8227 rc = !rc;
8228 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8229 rc = !rc;
8230
8231 return rc;
8232}
8233
8234/*
8235 * VIPA related functions
8236 */
8237int
8238qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8239 const u8 *addr)
8240{
8241 struct qeth_ipaddr *ipaddr;
8242 unsigned long flags;
8243 int rc = 0;
8244
8245 ipaddr = qeth_get_addr_buffer(proto);
8246 if (ipaddr){
8247 if (proto == QETH_PROT_IPV4){
8248 QETH_DBF_TEXT(trace, 2, "addvipa4");
8249 memcpy(&ipaddr->u.a4.addr, addr, 4);
8250 ipaddr->u.a4.mask = 0;
8251#ifdef CONFIG_QETH_IPV6
8252 } else if (proto == QETH_PROT_IPV6){
8253 QETH_DBF_TEXT(trace, 2, "addvipa6");
8254 memcpy(&ipaddr->u.a6.addr, addr, 16);
8255 ipaddr->u.a6.pfxlen = 0;
8256#endif
8257 }
8258 ipaddr->type = QETH_IP_TYPE_VIPA;
8259 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8260 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8261 } else
8262 return -ENOMEM;
8263 spin_lock_irqsave(&card->ip_lock, flags);
8264 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8265 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8266 rc = -EEXIST;
8267 spin_unlock_irqrestore(&card->ip_lock, flags);
8268 if (rc){
8269 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8270 return rc;
8271 }
8272 if (!qeth_add_ip(card, ipaddr))
8273 kfree(ipaddr);
8274 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8275 schedule_work(&card->kernel_thread_starter);
8276 return rc;
8277}
8278
8279void
8280qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8281 const u8 *addr)
8282{
8283 struct qeth_ipaddr *ipaddr;
8284
8285 ipaddr = qeth_get_addr_buffer(proto);
8286 if (ipaddr){
8287 if (proto == QETH_PROT_IPV4){
8288 QETH_DBF_TEXT(trace, 2, "delvipa4");
8289 memcpy(&ipaddr->u.a4.addr, addr, 4);
8290 ipaddr->u.a4.mask = 0;
8291#ifdef CONFIG_QETH_IPV6
8292 } else if (proto == QETH_PROT_IPV6){
8293 QETH_DBF_TEXT(trace, 2, "delvipa6");
8294 memcpy(&ipaddr->u.a6.addr, addr, 16);
8295 ipaddr->u.a6.pfxlen = 0;
8296#endif
8297 }
8298 ipaddr->type = QETH_IP_TYPE_VIPA;
8299 } else
8300 return;
8301 if (!qeth_delete_ip(card, ipaddr))
8302 kfree(ipaddr);
8303 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8304 schedule_work(&card->kernel_thread_starter);
8305}
8306
8307/*
8308 * proxy ARP related functions
8309 */
8310int
8311qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8312 const u8 *addr)
8313{
8314 struct qeth_ipaddr *ipaddr;
8315 unsigned long flags;
8316 int rc = 0;
8317
8318 ipaddr = qeth_get_addr_buffer(proto);
8319 if (ipaddr){
8320 if (proto == QETH_PROT_IPV4){
8321 QETH_DBF_TEXT(trace, 2, "addrxip4");
8322 memcpy(&ipaddr->u.a4.addr, addr, 4);
8323 ipaddr->u.a4.mask = 0;
8324#ifdef CONFIG_QETH_IPV6
8325 } else if (proto == QETH_PROT_IPV6){
8326 QETH_DBF_TEXT(trace, 2, "addrxip6");
8327 memcpy(&ipaddr->u.a6.addr, addr, 16);
8328 ipaddr->u.a6.pfxlen = 0;
8329#endif
8330 }
8331 ipaddr->type = QETH_IP_TYPE_RXIP;
8332 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8333 ipaddr->del_flags = 0;
8334 } else
8335 return -ENOMEM;
8336 spin_lock_irqsave(&card->ip_lock, flags);
8337 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8338 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8339 rc = -EEXIST;
8340 spin_unlock_irqrestore(&card->ip_lock, flags);
8341 if (rc){
8342 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8343 return rc;
8344 }
8345 if (!qeth_add_ip(card, ipaddr))
8346 kfree(ipaddr);
8347 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8348 schedule_work(&card->kernel_thread_starter);
8349 return 0;
8350}
8351
8352void
8353qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8354 const u8 *addr)
8355{
8356 struct qeth_ipaddr *ipaddr;
8357
8358 ipaddr = qeth_get_addr_buffer(proto);
8359 if (ipaddr){
8360 if (proto == QETH_PROT_IPV4){
8361 QETH_DBF_TEXT(trace, 2, "addrxip4");
8362 memcpy(&ipaddr->u.a4.addr, addr, 4);
8363 ipaddr->u.a4.mask = 0;
8364#ifdef CONFIG_QETH_IPV6
8365 } else if (proto == QETH_PROT_IPV6){
8366 QETH_DBF_TEXT(trace, 2, "addrxip6");
8367 memcpy(&ipaddr->u.a6.addr, addr, 16);
8368 ipaddr->u.a6.pfxlen = 0;
8369#endif
8370 }
8371 ipaddr->type = QETH_IP_TYPE_RXIP;
8372 } else
8373 return;
8374 if (!qeth_delete_ip(card, ipaddr))
8375 kfree(ipaddr);
8376 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8377 schedule_work(&card->kernel_thread_starter);
8378}
8379
8380/**
8381 * IP event handler
8382 */
8383static int
8384qeth_ip_event(struct notifier_block *this,
8385 unsigned long event,void *ptr)
8386{
8387 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8388 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8389 struct qeth_ipaddr *addr;
8390 struct qeth_card *card;
8391
8392 QETH_DBF_TEXT(trace,3,"ipevent");
8393 card = qeth_get_card_from_dev(dev);
8394 if (!card)
8395 return NOTIFY_DONE;
8396 if (card->options.layer2)
8397 return NOTIFY_DONE;
8398
8399 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8400 if (addr != NULL) {
8401 addr->u.a4.addr = ifa->ifa_address;
8402 addr->u.a4.mask = ifa->ifa_mask;
8403 addr->type = QETH_IP_TYPE_NORMAL;
8404 } else
8405 goto out;
8406
8407 switch(event) {
8408 case NETDEV_UP:
8409 if (!qeth_add_ip(card, addr))
8410 kfree(addr);
8411 break;
8412 case NETDEV_DOWN:
8413 if (!qeth_delete_ip(card, addr))
8414 kfree(addr);
8415 break;
8416 default:
8417 break;
8418 }
8419 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8420 schedule_work(&card->kernel_thread_starter);
8421out:
8422 return NOTIFY_DONE;
8423}
8424
8425static struct notifier_block qeth_ip_notifier = {
8426 qeth_ip_event,
d2c993d8 8427 NULL,
1da177e4
LT		 8428};
8429
8430#ifdef CONFIG_QETH_IPV6
8431/**
8432 * IPv6 event handler
8433 */
8434static int
8435qeth_ip6_event(struct notifier_block *this,
8436 unsigned long event,void *ptr)
8437{
8438
8439 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8440 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8441 struct qeth_ipaddr *addr;
8442 struct qeth_card *card;
8443
8444 QETH_DBF_TEXT(trace,3,"ip6event");
8445
8446 card = qeth_get_card_from_dev(dev);
8447 if (!card)
8448 return NOTIFY_DONE;
8449 if (!qeth_is_supported(card, IPA_IPV6))
8450 return NOTIFY_DONE;
8451
8452 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8453 if (addr != NULL) {
8454 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8455 addr->u.a6.pfxlen = ifa->prefix_len;
8456 addr->type = QETH_IP_TYPE_NORMAL;
8457 } else
8458 goto out;
8459
8460 switch(event) {
8461 case NETDEV_UP:
8462 if (!qeth_add_ip(card, addr))
8463 kfree(addr);
8464 break;
8465 case NETDEV_DOWN:
8466 if (!qeth_delete_ip(card, addr))
8467 kfree(addr);
8468 break;
8469 default:
8470 break;
8471 }
8472 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8473 schedule_work(&card->kernel_thread_starter);
8474out:
8475 return NOTIFY_DONE;
8476}
8477
8478static struct notifier_block qeth_ip6_notifier = {
8479 qeth_ip6_event,
d2c993d8 8480 NULL,
1da177e4
LT		 8481};
8482#endif
8483
8484static int
66aea23f 8485__qeth_reboot_event_card(struct device *dev, void *data)
1da177e4 8486{
1da177e4
LT		 8487 struct qeth_card *card;
8488
66aea23f
CH		 8489 card = (struct qeth_card *) dev->driver_data;
8490 qeth_clear_ip_list(card, 0, 0);
8491 qeth_qdio_clear_card(card, 0);
8492 return 0;
8493}
8494
8495static int
8496qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8497{
d7cf0d57 8498 int ret;
66aea23f 8499
d7cf0d57
HC		 8500 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8501 __qeth_reboot_event_card);
8502 return ret ? NOTIFY_BAD : NOTIFY_DONE;
1da177e4
LT		 8503}
8504
8505
8506static struct notifier_block qeth_reboot_notifier = {
8507 qeth_reboot_event,
d2c993d8 8508 NULL,
1da177e4
LT		 8509};
8510
8511static int
8512qeth_register_notifiers(void)
8513{
8514 int r;
8515
8516 QETH_DBF_TEXT(trace,5,"regnotif");
8517 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8518 return r;
8519 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8520 goto out_reboot;
8521#ifdef CONFIG_QETH_IPV6
8522 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8523 goto out_ipv4;
8524#endif
8525 return 0;
8526
8527#ifdef CONFIG_QETH_IPV6
8528out_ipv4:
8529 unregister_inetaddr_notifier(&qeth_ip_notifier);
8530#endif
8531out_reboot:
8532 unregister_reboot_notifier(&qeth_reboot_notifier);
8533 return r;
8534}
8535
8536/**
8537 * unregister all event notifiers
8538 */
8539static void
8540qeth_unregister_notifiers(void)
8541{
8542
8543 QETH_DBF_TEXT(trace,5,"unregnot");
8544 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8545 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8546#ifdef CONFIG_QETH_IPV6
8547 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8548#endif /* QETH_IPV6 */
8549
8550}
8551
8552#ifdef CONFIG_QETH_IPV6
8553static int
8554qeth_ipv6_init(void)
8555{
8556 qeth_old_arp_constructor = arp_tbl.constructor;
3d8f3f3c 8557 write_lock_bh(&arp_tbl.lock);
1da177e4 8558 arp_tbl.constructor = qeth_arp_constructor;
3d8f3f3c 8559 write_unlock_bh(&arp_tbl.lock);
1da177e4
LT		 8560
8561 arp_direct_ops = (struct neigh_ops*)
8562 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8563 if (!arp_direct_ops)
8564 return -ENOMEM;
8565
8566 memcpy(arp_direct_ops, &arp_direct_ops_template,
8567 sizeof(struct neigh_ops));
8568
8569 return 0;
8570}
8571
8572static void
8573qeth_ipv6_uninit(void)
8574{
3d8f3f3c 8575 write_lock_bh(&arp_tbl.lock);
1da177e4 8576 arp_tbl.constructor = qeth_old_arp_constructor;
3d8f3f3c 8577 write_unlock_bh(&arp_tbl.lock);
1da177e4
LT		 8578 kfree(arp_direct_ops);
8579}
8580#endif /* CONFIG_QETH_IPV6 */
8581
8582static void
8583qeth_sysfs_unregister(void)
8584{
8b98a37c 8585 s390_root_dev_unregister(qeth_root_dev);
1da177e4
LT		 8586 qeth_remove_driver_attributes();
8587 ccw_driver_unregister(&qeth_ccw_driver);
8588 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
1da177e4 8589}
8b98a37c 8590
1da177e4
LT		 8591/**
8592 * register qeth at sysfs
8593 */
8594static int
8595qeth_sysfs_register(void)
8596{
8b98a37c 8597 int rc;
1da177e4
LT		 8598
8599 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8600 if (rc)
8b98a37c
FP		 8601 goto out;
8602
1da177e4
LT		 8603 rc = ccw_driver_register(&qeth_ccw_driver);
8604 if (rc)
8b98a37c
FP		 8605 goto out_ccw_driver;
8606
1da177e4
LT		 8607 rc = qeth_create_driver_attributes();
8608 if (rc)
8b98a37c
FP		 8609 goto out_qeth_attr;
8610
1da177e4 8611 qeth_root_dev = s390_root_dev_register("qeth");
8b98a37c
FP		 8612 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8613 if (!rc)
8614 goto out;
8615
8616 qeth_remove_driver_attributes();
8617out_qeth_attr:
8618 ccw_driver_unregister(&qeth_ccw_driver);
8619out_ccw_driver:
8620 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8621out:
8622 return rc;
1da177e4
LT		 8623}
8624
8625/***
8626 * init function
8627 */
8628static int __init
8629qeth_init(void)
8630{
8b98a37c 8631 int rc;
1da177e4 8632
e018ba1f 8633 PRINT_INFO("loading %s\n", version);
1da177e4
LT		 8634
8635 INIT_LIST_HEAD(&qeth_card_list.list);
8636 INIT_LIST_HEAD(&qeth_notify_list);
8637 spin_lock_init(&qeth_notify_lock);
8638 rwlock_init(&qeth_card_list.rwlock);
8639
8b98a37c
FP		 8640 rc = qeth_register_dbf_views();
8641 if (rc)
1da177e4 8642 goto out_err;
8b98a37c
FP		 8643
8644 rc = qeth_sysfs_register();
8645 if (rc)
8646 goto out_dbf;
1da177e4
LT		 8647
8648#ifdef CONFIG_QETH_IPV6
8b98a37c
FP		 8649 rc = qeth_ipv6_init();
8650 if (rc) {
8651 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
1da177e4
LT		 8652 goto out_sysfs;
8653 }
8654#endif /* QETH_IPV6 */
8b98a37c
FP		 8655 rc = qeth_register_notifiers();
8656 if (rc)
1da177e4 8657 goto out_ipv6;
8b98a37c
FP		 8658 rc = qeth_create_procfs_entries();
8659 if (rc)
1da177e4
LT		 8660 goto out_notifiers;
8661
8662 return rc;
8663
8664out_notifiers:
8665 qeth_unregister_notifiers();
8666out_ipv6:
8667#ifdef CONFIG_QETH_IPV6
8668 qeth_ipv6_uninit();
1da177e4 8669out_sysfs:
8b98a37c 8670#endif /* QETH_IPV6 */
1da177e4 8671 qeth_sysfs_unregister();
8b98a37c 8672out_dbf:
1da177e4
LT		 8673 qeth_unregister_dbf_views();
8674out_err:
8b98a37c 8675 PRINT_ERR("Initialization failed with code %d\n", rc);
1da177e4
LT		 8676 return rc;
8677}
8678
8679static void
8680__exit qeth_exit(void)
8681{
8682 struct qeth_card *card, *tmp;
8683 unsigned long flags;
8684
8685 QETH_DBF_TEXT(trace,1, "cleanup.");
8686
8687 /*
8688 * Weed would not need to clean up our devices here, because the
8689 * common device layer calls qeth_remove_device for each device
8690 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8691 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8692 * qeth_remove_device called by the common device layer would otherwise
8693 * do a "hard" shutdown (card->use_hard_stop is set to one in
8694 * qeth_remove_device).
8695 */
8696again:
8697 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8698 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8699 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8700 qeth_set_offline(card->gdev);
8701 qeth_remove_device(card->gdev);
8702 goto again;
8703 }
8704 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8705#ifdef CONFIG_QETH_IPV6
8706 qeth_ipv6_uninit();
8707#endif
8708 qeth_unregister_notifiers();
8709 qeth_remove_procfs_entries();
8710 qeth_sysfs_unregister();
8711 qeth_unregister_dbf_views();
8712 printk("qeth: removed\n");
8713}
8714
500f83ab
UB		 8715EXPORT_SYMBOL(qeth_osn_register);
8716EXPORT_SYMBOL(qeth_osn_deregister);
8717EXPORT_SYMBOL(qeth_osn_assist);
1da177e4
LT		 8718module_init(qeth_init);
8719module_exit(qeth_exit);
1387780f 8720MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
1da177e4
LT		 8721MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8722 "Copyright 2000,2003 IBM Corporation\n");
8723
8724MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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