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