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forcedeth: sideband management fix
[deliverable/linux.git] / drivers / s390 / net / qeth_main.c
CommitLineData
1da177e4 1/*
e018ba1f 2 * linux/drivers/s390/net/qeth_main.c
1da177e4
LT		 3 *
4 * Linux on zSeries OSA Express and HiperSockets support
5 *
6 * Copyright 2000,2003 IBM Corporation
7 *
8 * Author(s): Original Code written by
9 * Utz Bacher (utz.bacher@de.ibm.com)
10 * Rewritten by
1387780f 11 * Frank Pavlic (fpavlic@de.ibm.com) and
1da177e4
LT		 12 * Thomas Spatzier <tspat@de.ibm.com>
13 *
1da177e4
LT		 14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
1da177e4 29
1da177e4
LT		 30#include <linux/module.h>
31#include <linux/moduleparam.h>
32#include <linux/string.h>
33#include <linux/errno.h>
34#include <linux/mm.h>
35#include <linux/ip.h>
36#include <linux/inetdevice.h>
37#include <linux/netdevice.h>
38#include <linux/sched.h>
39#include <linux/workqueue.h>
40#include <linux/kernel.h>
41#include <linux/slab.h>
42#include <linux/interrupt.h>
43#include <linux/tcp.h>
44#include <linux/icmp.h>
45#include <linux/skbuff.h>
46#include <linux/in.h>
47#include <linux/igmp.h>
48#include <linux/init.h>
49#include <linux/reboot.h>
50#include <linux/mii.h>
51#include <linux/rcupdate.h>
52#include <linux/ethtool.h>
53
54#include <net/arp.h>
55#include <net/ip.h>
56#include <net/route.h>
57
58#include <asm/ebcdic.h>
59#include <asm/io.h>
60#include <asm/qeth.h>
61#include <asm/timex.h>
62#include <asm/semaphore.h>
63#include <asm/uaccess.h>
cfb1b555 64#include <asm/s390_rdev.h>
1da177e4
LT		 65
66#include "qeth.h"
67#include "qeth_mpc.h"
68#include "qeth_fs.h"
69#include "qeth_eddp.h"
70#include "qeth_tso.h"
71
1da177e4
LT		 72static const char *version = "qeth S/390 OSA-Express driver";
73
74/**
75 * Debug Facility Stuff
76 */
77static debug_info_t *qeth_dbf_setup = NULL;
78static debug_info_t *qeth_dbf_data = NULL;
79static debug_info_t *qeth_dbf_misc = NULL;
80static debug_info_t *qeth_dbf_control = NULL;
81debug_info_t *qeth_dbf_trace = NULL;
82static debug_info_t *qeth_dbf_sense = NULL;
83static debug_info_t *qeth_dbf_qerr = NULL;
84
85DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
86
91ebe2a9
HC		 87static struct lock_class_key qdio_out_skb_queue_key;
88
1da177e4
LT		 89/**
90 * some more definitions and declarations
91 */
92static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
93
94/* list of our cards */
95struct qeth_card_list_struct qeth_card_list;
96/*process list want to be notified*/
97spinlock_t qeth_notify_lock;
98struct list_head qeth_notify_list;
99
100static void qeth_send_control_data_cb(struct qeth_channel *,
101 struct qeth_cmd_buffer *);
102
103/**
104 * here we go with function implementation
105 */
106static void
107qeth_init_qdio_info(struct qeth_card *card);
108
109static int
110qeth_init_qdio_queues(struct qeth_card *card);
111
112static int
113qeth_alloc_qdio_buffers(struct qeth_card *card);
114
115static void
116qeth_free_qdio_buffers(struct qeth_card *);
117
118static void
119qeth_clear_qdio_buffers(struct qeth_card *);
120
121static void
122qeth_clear_ip_list(struct qeth_card *, int, int);
123
124static void
125qeth_clear_ipacmd_list(struct qeth_card *);
126
127static int
128qeth_qdio_clear_card(struct qeth_card *, int);
129
130static void
131qeth_clear_working_pool_list(struct qeth_card *);
132
133static void
134qeth_clear_cmd_buffers(struct qeth_channel *);
135
136static int
137qeth_stop(struct net_device *);
138
139static void
140qeth_clear_ipato_list(struct qeth_card *);
141
142static int
143qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
144
145static void
146qeth_irq_tasklet(unsigned long);
147
148static int
149qeth_set_online(struct ccwgroup_device *);
150
05e08a2a
FP		 151static int
152__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
153
1da177e4
LT		 154static struct qeth_ipaddr *
155qeth_get_addr_buffer(enum qeth_prot_versions);
156
157static void
158qeth_set_multicast_list(struct net_device *);
159
6c951b90
FP		 160static void
161qeth_setadp_promisc_mode(struct qeth_card *);
162
1da177e4
LT		 163static void
164qeth_notify_processes(void)
165{
166 /*notify all registered processes */
167 struct qeth_notify_list_struct *n_entry;
168
169 QETH_DBF_TEXT(trace,3,"procnoti");
170 spin_lock(&qeth_notify_lock);
171 list_for_each_entry(n_entry, &qeth_notify_list, list) {
172 send_sig(n_entry->signum, n_entry->task, 1);
173 }
174 spin_unlock(&qeth_notify_lock);
175
176}
177int
178qeth_notifier_unregister(struct task_struct *p)
179{
180 struct qeth_notify_list_struct *n_entry, *tmp;
181
182 QETH_DBF_TEXT(trace, 2, "notunreg");
183 spin_lock(&qeth_notify_lock);
184 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
185 if (n_entry->task == p) {
186 list_del(&n_entry->list);
187 kfree(n_entry);
188 goto out;
189 }
190 }
191out:
192 spin_unlock(&qeth_notify_lock);
193 return 0;
194}
195int
196qeth_notifier_register(struct task_struct *p, int signum)
197{
198 struct qeth_notify_list_struct *n_entry;
199
1da177e4
LT		 200 /*check first if entry already exists*/
201 spin_lock(&qeth_notify_lock);
202 list_for_each_entry(n_entry, &qeth_notify_list, list) {
203 if (n_entry->task == p) {
204 n_entry->signum = signum;
205 spin_unlock(&qeth_notify_lock);
206 return 0;
207 }
208 }
209 spin_unlock(&qeth_notify_lock);
210
211 n_entry = (struct qeth_notify_list_struct *)
212 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
213 if (!n_entry)
214 return -ENOMEM;
215 n_entry->task = p;
216 n_entry->signum = signum;
217 spin_lock(&qeth_notify_lock);
218 list_add(&n_entry->list,&qeth_notify_list);
219 spin_unlock(&qeth_notify_lock);
220 return 0;
221}
222
223
224/**
225 * free channel command buffers
226 */
227static void
228qeth_clean_channel(struct qeth_channel *channel)
229{
230 int cnt;
231
232 QETH_DBF_TEXT(setup, 2, "freech");
233 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
234 kfree(channel->iob[cnt].data);
235}
236
237/**
238 * free card
239 */
240static void
241qeth_free_card(struct qeth_card *card)
242{
243
244 QETH_DBF_TEXT(setup, 2, "freecrd");
245 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
246 qeth_clean_channel(&card->read);
247 qeth_clean_channel(&card->write);
248 if (card->dev)
249 free_netdev(card->dev);
250 qeth_clear_ip_list(card, 0, 0);
251 qeth_clear_ipato_list(card);
252 kfree(card->ip_tbd_list);
253 qeth_free_qdio_buffers(card);
254 kfree(card);
255}
256
257/**
258 * alloc memory for command buffer per channel
259 */
260static int
261qeth_setup_channel(struct qeth_channel *channel)
262{
263 int cnt;
264
265 QETH_DBF_TEXT(setup, 2, "setupch");
266 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
267 channel->iob[cnt].data = (char *)
268 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
269 if (channel->iob[cnt].data == NULL)
270 break;
271 channel->iob[cnt].state = BUF_STATE_FREE;
272 channel->iob[cnt].channel = channel;
273 channel->iob[cnt].callback = qeth_send_control_data_cb;
274 channel->iob[cnt].rc = 0;
275 }
276 if (cnt < QETH_CMD_BUFFER_NO) {
277 while (cnt-- > 0)
278 kfree(channel->iob[cnt].data);
279 return -ENOMEM;
280 }
281 channel->buf_no = 0;
282 channel->io_buf_no = 0;
283 atomic_set(&channel->irq_pending, 0);
284 spin_lock_init(&channel->iob_lock);
285
286 init_waitqueue_head(&channel->wait_q);
287 channel->irq_tasklet.data = (unsigned long) channel;
288 channel->irq_tasklet.func = qeth_irq_tasklet;
289 return 0;
290}
291
292/**
293 * alloc memory for card structure
294 */
295static struct qeth_card *
296qeth_alloc_card(void)
297{
298 struct qeth_card *card;
299
300 QETH_DBF_TEXT(setup, 2, "alloccrd");
88abaab4 301 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1da177e4
LT		 302 if (!card)
303 return NULL;
304 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1da177e4
LT		 305 if (qeth_setup_channel(&card->read)) {
306 kfree(card);
307 return NULL;
308 }
309 if (qeth_setup_channel(&card->write)) {
310 qeth_clean_channel(&card->read);
311 kfree(card);
312 return NULL;
313 }
314 return card;
315}
316
317static long
318__qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
319{
320 if (!IS_ERR(irb))
321 return 0;
322
323 switch (PTR_ERR(irb)) {
324 case -EIO:
325 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
326 QETH_DBF_TEXT(trace, 2, "ckirberr");
327 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
328 break;
329 case -ETIMEDOUT:
330 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
331 QETH_DBF_TEXT(trace, 2, "ckirberr");
332 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
333 break;
334 default:
335 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
336 cdev->dev.bus_id);
337 QETH_DBF_TEXT(trace, 2, "ckirberr");
338 QETH_DBF_TEXT(trace, 2, " rc???");
339 }
340 return PTR_ERR(irb);
341}
342
343static int
344qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
345{
346 int dstat,cstat;
347 char *sense;
348
349 sense = (char *) irb->ecw;
350 cstat = irb->scsw.cstat;
351 dstat = irb->scsw.dstat;
352
353 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
354 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
355 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
356 QETH_DBF_TEXT(trace,2, "CGENCHK");
357 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
358 cdev->dev.bus_id, dstat, cstat);
359 HEXDUMP16(WARN, "irb: ", irb);
360 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
361 return 1;
362 }
363
364 if (dstat & DEV_STAT_UNIT_CHECK) {
365 if (sense[SENSE_RESETTING_EVENT_BYTE] &
366 SENSE_RESETTING_EVENT_FLAG) {
367 QETH_DBF_TEXT(trace,2,"REVIND");
368 return 1;
369 }
370 if (sense[SENSE_COMMAND_REJECT_BYTE] &
371 SENSE_COMMAND_REJECT_FLAG) {
372 QETH_DBF_TEXT(trace,2,"CMDREJi");
373 return 0;
374 }
375 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
376 QETH_DBF_TEXT(trace,2,"AFFE");
377 return 1;
378 }
379 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
380 QETH_DBF_TEXT(trace,2,"ZEROSEN");
381 return 0;
382 }
383 QETH_DBF_TEXT(trace,2,"DGENCHK");
384 return 1;
385 }
386 return 0;
387}
388static int qeth_issue_next_read(struct qeth_card *);
389
390/**
391 * interrupt handler
392 */
393static void
394qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
395{
396 int rc;
397 int cstat,dstat;
398 struct qeth_cmd_buffer *buffer;
399 struct qeth_channel *channel;
400 struct qeth_card *card;
401
402 QETH_DBF_TEXT(trace,5,"irq");
403
404 if (__qeth_check_irb_error(cdev, irb))
405 return;
406 cstat = irb->scsw.cstat;
407 dstat = irb->scsw.dstat;
408
409 card = CARD_FROM_CDEV(cdev);
410 if (!card)
411 return;
412
413 if (card->read.ccwdev == cdev){
414 channel = &card->read;
415 QETH_DBF_TEXT(trace,5,"read");
416 } else if (card->write.ccwdev == cdev) {
417 channel = &card->write;
418 QETH_DBF_TEXT(trace,5,"write");
419 } else {
420 channel = &card->data;
421 QETH_DBF_TEXT(trace,5,"data");
422 }
423 atomic_set(&channel->irq_pending, 0);
424
425 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
426 channel->state = CH_STATE_STOPPED;
427
428 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
429 channel->state = CH_STATE_HALTED;
430
431 /*let's wake up immediately on data channel*/
432 if ((channel == &card->data) && (intparm != 0))
433 goto out;
434
435 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
436 QETH_DBF_TEXT(trace, 6, "clrchpar");
437 /* we don't have to handle this further */
438 intparm = 0;
439 }
440 if (intparm == QETH_HALT_CHANNEL_PARM) {
441 QETH_DBF_TEXT(trace, 6, "hltchpar");
442 /* we don't have to handle this further */
443 intparm = 0;
444 }
445 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
446 (dstat & DEV_STAT_UNIT_CHECK) ||
447 (cstat)) {
448 if (irb->esw.esw0.erw.cons) {
449 /* TODO: we should make this s390dbf */
450 PRINT_WARN("sense data available on channel %s.\n",
451 CHANNEL_ID(channel));
452 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
453 HEXDUMP16(WARN,"irb: ",irb);
454 HEXDUMP16(WARN,"sense data: ",irb->ecw);
455 }
456 rc = qeth_get_problem(cdev,irb);
457 if (rc) {
458 qeth_schedule_recovery(card);
459 goto out;
460 }
461 }
462
463 if (intparm) {
464 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
465 buffer->state = BUF_STATE_PROCESSED;
466 }
467 if (channel == &card->data)
468 return;
469
470 if (channel == &card->read &&
471 channel->state == CH_STATE_UP)
472 qeth_issue_next_read(card);
473
474 tasklet_schedule(&channel->irq_tasklet);
475 return;
476out:
477 wake_up(&card->wait_q);
478}
479
480/**
481 * tasklet function scheduled from irq handler
482 */
483static void
484qeth_irq_tasklet(unsigned long data)
485{
486 struct qeth_card *card;
487 struct qeth_channel *channel;
488 struct qeth_cmd_buffer *iob;
489 __u8 index;
490
491 QETH_DBF_TEXT(trace,5,"irqtlet");
492 channel = (struct qeth_channel *) data;
493 iob = channel->iob;
494 index = channel->buf_no;
495 card = CARD_FROM_CDEV(channel->ccwdev);
496 while (iob[index].state == BUF_STATE_PROCESSED) {
497 if (iob[index].callback !=NULL) {
498 iob[index].callback(channel,iob + index);
499 }
500 index = (index + 1) % QETH_CMD_BUFFER_NO;
501 }
502 channel->buf_no = index;
503 wake_up(&card->wait_q);
504}
505
05e08a2a 506static int qeth_stop_card(struct qeth_card *, int);
1da177e4
LT		 507
508static int
05e08a2a 509__qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
1da177e4
LT		 510{
511 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
9123e0d7 512 int rc = 0, rc2 = 0, rc3 = 0;
1da177e4
LT		 513 enum qeth_card_states recover_flag;
514
515 QETH_DBF_TEXT(setup, 3, "setoffl");
516 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
e82b0f2c 517
66cc5d5a
FP		 518 if (card->dev && netif_carrier_ok(card->dev))
519 netif_carrier_off(card->dev);
1da177e4 520 recover_flag = card->state;
05e08a2a 521 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
1da177e4
LT		 522 PRINT_WARN("Stopping card %s interrupted by user!\n",
523 CARD_BUS_ID(card));
524 return -ERESTARTSYS;
525 }
9123e0d7
UB		 526 rc = ccw_device_set_offline(CARD_DDEV(card));
527 rc2 = ccw_device_set_offline(CARD_WDEV(card));
528 rc3 = ccw_device_set_offline(CARD_RDEV(card));
529 if (!rc)
530 rc = (rc2) ? rc2 : rc3;
531 if (rc)
1da177e4 532 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1da177e4
LT		 533 if (recover_flag == CARD_STATE_UP)
534 card->state = CARD_STATE_RECOVER;
535 qeth_notify_processes();
536 return 0;
537}
538
05e08a2a
FP		 539static int
540qeth_set_offline(struct ccwgroup_device *cgdev)
541{
542 return __qeth_set_offline(cgdev, 0);
543}
544
1da177e4
LT		 545static int
546qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
547
548
549static void
550qeth_remove_device(struct ccwgroup_device *cgdev)
551{
552 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
553 unsigned long flags;
554
555 QETH_DBF_TEXT(setup, 3, "rmdev");
556 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
557
558 if (!card)
559 return;
560
561 if (qeth_wait_for_threads(card, 0xffffffff))
562 return;
563
564 if (cgdev->state == CCWGROUP_ONLINE){
565 card->use_hard_stop = 1;
566 qeth_set_offline(cgdev);
567 }
568 /* remove form our internal list */
569 write_lock_irqsave(&qeth_card_list.rwlock, flags);
570 list_del(&card->list);
571 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
572 if (card->dev)
573 unregister_netdev(card->dev);
574 qeth_remove_device_attributes(&cgdev->dev);
575 qeth_free_card(card);
576 cgdev->dev.driver_data = NULL;
577 put_device(&cgdev->dev);
578}
579
580static int
581qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
582static int
583qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
584
585/**
586 * Add/remove address to/from card's ip list, i.e. try to add or remove
587 * reference to/from an IP address that is already registered on the card.
588 * Returns:
589 * 0 address was on card and its reference count has been adjusted,
590 * but is still > 0, so nothing has to be done
591 * also returns 0 if card was not on card and the todo was to delete
592 * the address -> there is also nothing to be done
593 * 1 address was not on card and the todo is to add it to the card's ip
594 * list
595 * -1 address was on card and its reference count has been decremented
596 * to <= 0 by the todo -> address must be removed from card
597 */
598static int
599__qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
600 struct qeth_ipaddr **__addr)
601{
602 struct qeth_ipaddr *addr;
603 int found = 0;
604
605 list_for_each_entry(addr, &card->ip_list, entry) {
6c88ad2d
FP		 606 if (card->options.layer2) {
607 if ((addr->type == todo->type) &&
e82b0f2c 608 (memcmp(&addr->mac, &todo->mac,
6c88ad2d
FP		 609 OSA_ADDR_LEN) == 0)) {
610 found = 1;
611 break;
612 }
613 continue;
e82b0f2c 614 }
1da177e4
LT		 615 if ((addr->proto == QETH_PROT_IPV4) &&
616 (todo->proto == QETH_PROT_IPV4) &&
617 (addr->type == todo->type) &&
618 (addr->u.a4.addr == todo->u.a4.addr) &&
6c88ad2d 619 (addr->u.a4.mask == todo->u.a4.mask)) {
1da177e4
LT		 620 found = 1;
621 break;
622 }
623 if ((addr->proto == QETH_PROT_IPV6) &&
624 (todo->proto == QETH_PROT_IPV6) &&
625 (addr->type == todo->type) &&
626 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
627 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
6c88ad2d 628 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 629 found = 1;
630 break;
631 }
632 }
6c88ad2d 633 if (found) {
1da177e4
LT		 634 addr->users += todo->users;
635 if (addr->users <= 0){
636 *__addr = addr;
637 return -1;
638 } else {
639 /* for VIPA and RXIP limit refcount to 1 */
640 if (addr->type != QETH_IP_TYPE_NORMAL)
641 addr->users = 1;
642 return 0;
643 }
644 }
6c88ad2d 645 if (todo->users > 0) {
1da177e4
LT		 646 /* for VIPA and RXIP limit refcount to 1 */
647 if (todo->type != QETH_IP_TYPE_NORMAL)
648 todo->users = 1;
649 return 1;
650 } else
651 return 0;
652}
653
654static inline int
655__qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
656 int same_type)
657{
658 struct qeth_ipaddr *tmp;
659
660 list_for_each_entry(tmp, list, entry) {
661 if ((tmp->proto == QETH_PROT_IPV4) &&
662 (addr->proto == QETH_PROT_IPV4) &&
663 ((same_type && (tmp->type == addr->type)) ||
664 (!same_type && (tmp->type != addr->type)) ) &&
665 (tmp->u.a4.addr == addr->u.a4.addr) ){
666 return 1;
667 }
668 if ((tmp->proto == QETH_PROT_IPV6) &&
669 (addr->proto == QETH_PROT_IPV6) &&
670 ((same_type && (tmp->type == addr->type)) ||
671 (!same_type && (tmp->type != addr->type)) ) &&
672 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
673 sizeof(struct in6_addr)) == 0) ) {
674 return 1;
675 }
676 }
677 return 0;
678}
679
680/*
681 * Add IP to be added to todo list. If there is already an "add todo"
682 * in this list we just incremenent the reference count.
683 * Returns 0 if we just incremented reference count.
684 */
685static int
686__qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
687{
688 struct qeth_ipaddr *tmp, *t;
689 int found = 0;
690
691 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
692 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
693 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
694 return 0;
6c88ad2d
FP		 695 if (card->options.layer2) {
696 if ((tmp->type == addr->type) &&
697 (tmp->is_multicast == addr->is_multicast) &&
e82b0f2c 698 (memcmp(&tmp->mac, &addr->mac,
6c88ad2d
FP		 699 OSA_ADDR_LEN) == 0)) {
700 found = 1;
701 break;
702 }
703 continue;
e82b0f2c 704 }
1da177e4
LT		 705 if ((tmp->proto == QETH_PROT_IPV4) &&
706 (addr->proto == QETH_PROT_IPV4) &&
707 (tmp->type == addr->type) &&
708 (tmp->is_multicast == addr->is_multicast) &&
709 (tmp->u.a4.addr == addr->u.a4.addr) &&
6c88ad2d 710 (tmp->u.a4.mask == addr->u.a4.mask)) {
1da177e4
LT		 711 found = 1;
712 break;
713 }
714 if ((tmp->proto == QETH_PROT_IPV6) &&
715 (addr->proto == QETH_PROT_IPV6) &&
716 (tmp->type == addr->type) &&
717 (tmp->is_multicast == addr->is_multicast) &&
718 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
719 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
6c88ad2d 720 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 721 found = 1;
722 break;
723 }
724 }
725 if (found){
726 if (addr->users != 0)
727 tmp->users += addr->users;
728 else
729 tmp->users += add? 1:-1;
6c88ad2d 730 if (tmp->users == 0) {
1da177e4
LT		 731 list_del(&tmp->entry);
732 kfree(tmp);
733 }
734 return 0;
735 } else {
736 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
737 list_add(&addr->entry, card->ip_tbd_list);
738 else {
739 if (addr->users == 0)
740 addr->users += add? 1:-1;
741 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
742 qeth_is_addr_covered_by_ipato(card, addr)){
743 QETH_DBF_TEXT(trace, 2, "tkovaddr");
744 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
745 }
746 list_add_tail(&addr->entry, card->ip_tbd_list);
747 }
748 return 1;
749 }
750}
751
752/**
753 * Remove IP address from list
754 */
755static int
756qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
757{
758 unsigned long flags;
759 int rc = 0;
760
6c88ad2d
FP		 761 QETH_DBF_TEXT(trace, 4, "delip");
762
763 if (card->options.layer2)
764 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
765 else if (addr->proto == QETH_PROT_IPV4)
766 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 767 else {
6c88ad2d
FP		 768 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
769 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 770 }
771 spin_lock_irqsave(&card->ip_lock, flags);
772 rc = __qeth_insert_ip_todo(card, addr, 0);
773 spin_unlock_irqrestore(&card->ip_lock, flags);
774 return rc;
775}
776
777static int
778qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
779{
780 unsigned long flags;
781 int rc = 0;
782
6c88ad2d
FP		 783 QETH_DBF_TEXT(trace, 4, "addip");
784 if (card->options.layer2)
785 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
786 else if (addr->proto == QETH_PROT_IPV4)
787 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 788 else {
6c88ad2d
FP		 789 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
790 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 791 }
792 spin_lock_irqsave(&card->ip_lock, flags);
793 rc = __qeth_insert_ip_todo(card, addr, 1);
794 spin_unlock_irqrestore(&card->ip_lock, flags);
795 return rc;
796}
797
798static inline void
799__qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
800{
801 struct qeth_ipaddr *addr, *tmp;
802 int rc;
d805d7c6 803again:
1da177e4
LT		 804 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
805 if (addr->is_multicast) {
806 spin_unlock_irqrestore(&card->ip_lock, *flags);
807 rc = qeth_deregister_addr_entry(card, addr);
808 spin_lock_irqsave(&card->ip_lock, *flags);
809 if (!rc) {
810 list_del(&addr->entry);
811 kfree(addr);
d805d7c6 812 goto again;
1da177e4
LT		 813 }
814 }
815 }
816}
817
818static void
819qeth_set_ip_addr_list(struct qeth_card *card)
820{
821 struct list_head *tbd_list;
822 struct qeth_ipaddr *todo, *addr;
823 unsigned long flags;
824 int rc;
825
826 QETH_DBF_TEXT(trace, 2, "sdiplist");
827 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
828
829 spin_lock_irqsave(&card->ip_lock, flags);
830 tbd_list = card->ip_tbd_list;
831 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
832 if (!card->ip_tbd_list) {
833 QETH_DBF_TEXT(trace, 0, "silnomem");
834 card->ip_tbd_list = tbd_list;
835 spin_unlock_irqrestore(&card->ip_lock, flags);
836 return;
837 } else
838 INIT_LIST_HEAD(card->ip_tbd_list);
839
840 while (!list_empty(tbd_list)){
841 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
842 list_del(&todo->entry);
843 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
844 __qeth_delete_all_mc(card, &flags);
845 kfree(todo);
846 continue;
847 }
848 rc = __qeth_ref_ip_on_card(card, todo, &addr);
849 if (rc == 0) {
850 /* nothing to be done; only adjusted refcount */
851 kfree(todo);
852 } else if (rc == 1) {
853 /* new entry to be added to on-card list */
854 spin_unlock_irqrestore(&card->ip_lock, flags);
855 rc = qeth_register_addr_entry(card, todo);
856 spin_lock_irqsave(&card->ip_lock, flags);
857 if (!rc)
858 list_add_tail(&todo->entry, &card->ip_list);
859 else
860 kfree(todo);
861 } else if (rc == -1) {
862 /* on-card entry to be removed */
863 list_del_init(&addr->entry);
864 spin_unlock_irqrestore(&card->ip_lock, flags);
865 rc = qeth_deregister_addr_entry(card, addr);
866 spin_lock_irqsave(&card->ip_lock, flags);
867 if (!rc)
868 kfree(addr);
869 else
870 list_add_tail(&addr->entry, &card->ip_list);
871 kfree(todo);
872 }
873 }
874 spin_unlock_irqrestore(&card->ip_lock, flags);
875 kfree(tbd_list);
876}
877
878static void qeth_delete_mc_addresses(struct qeth_card *);
879static void qeth_add_multicast_ipv4(struct qeth_card *);
6c88ad2d 880static void qeth_layer2_add_multicast(struct qeth_card *);
1da177e4
LT		 881#ifdef CONFIG_QETH_IPV6
882static void qeth_add_multicast_ipv6(struct qeth_card *);
883#endif
884
885static inline int
886qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
887{
888 unsigned long flags;
889
890 spin_lock_irqsave(&card->thread_mask_lock, flags);
891 if ( !(card->thread_allowed_mask & thread) ||
892 (card->thread_start_mask & thread) ) {
893 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
894 return -EPERM;
895 }
896 card->thread_start_mask |= thread;
897 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
898 return 0;
899}
900
901static void
902qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
903{
904 unsigned long flags;
905
906 spin_lock_irqsave(&card->thread_mask_lock, flags);
907 card->thread_start_mask &= ~thread;
908 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
909 wake_up(&card->wait_q);
910}
911
912static void
913qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
914{
915 unsigned long flags;
916
917 spin_lock_irqsave(&card->thread_mask_lock, flags);
918 card->thread_running_mask &= ~thread;
919 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
920 wake_up(&card->wait_q);
921}
922
923static inline int
924__qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
925{
926 unsigned long flags;
927 int rc = 0;
928
929 spin_lock_irqsave(&card->thread_mask_lock, flags);
930 if (card->thread_start_mask & thread){
931 if ((card->thread_allowed_mask & thread) &&
932 !(card->thread_running_mask & thread)){
933 rc = 1;
934 card->thread_start_mask &= ~thread;
935 card->thread_running_mask |= thread;
936 } else
937 rc = -EPERM;
938 }
939 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
940 return rc;
941}
942
943static int
944qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
945{
946 int rc = 0;
947
948 wait_event(card->wait_q,
949 (rc = __qeth_do_run_thread(card, thread)) >= 0);
950 return rc;
951}
952
953static int
954qeth_register_ip_addresses(void *ptr)
955{
956 struct qeth_card *card;
957
958 card = (struct qeth_card *) ptr;
959 daemonize("qeth_reg_ip");
960 QETH_DBF_TEXT(trace,4,"regipth1");
961 if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
962 return 0;
963 QETH_DBF_TEXT(trace,4,"regipth2");
964 qeth_set_ip_addr_list(card);
965 qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
966 return 0;
967}
968
6c951b90
FP		 969/*
970 * Drive the SET_PROMISC_MODE thread
971 */
972static int
973qeth_set_promisc_mode(void *ptr)
974{
975 struct qeth_card *card = (struct qeth_card *) ptr;
976
977 daemonize("qeth_setprm");
978 QETH_DBF_TEXT(trace,4,"setprm1");
979 if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
980 return 0;
981 QETH_DBF_TEXT(trace,4,"setprm2");
982 qeth_setadp_promisc_mode(card);
983 qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
984 return 0;
985}
986
1da177e4
LT		 987static int
988qeth_recover(void *ptr)
989{
990 struct qeth_card *card;
991 int rc = 0;
992
993 card = (struct qeth_card *) ptr;
994 daemonize("qeth_recover");
995 QETH_DBF_TEXT(trace,2,"recover1");
996 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
997 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
998 return 0;
999 QETH_DBF_TEXT(trace,2,"recover2");
1000 PRINT_WARN("Recovery of device %s started ...\n",
1001 CARD_BUS_ID(card));
1002 card->use_hard_stop = 1;
05e08a2a
FP		 1003 __qeth_set_offline(card->gdev,1);
1004 rc = __qeth_set_online(card->gdev,1);
1da177e4
LT		 1005 if (!rc)
1006 PRINT_INFO("Device %s successfully recovered!\n",
1007 CARD_BUS_ID(card));
1008 else
1009 PRINT_INFO("Device %s could not be recovered!\n",
1010 CARD_BUS_ID(card));
1011 /* don't run another scheduled recovery */
1012 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1013 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1014 return 0;
1015}
1016
1017void
1018qeth_schedule_recovery(struct qeth_card *card)
1019{
1020 QETH_DBF_TEXT(trace,2,"startrec");
1da177e4
LT		 1021 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1022 schedule_work(&card->kernel_thread_starter);
1023}
1024
1025static int
1026qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1027{
1028 unsigned long flags;
1029 int rc = 0;
1030
1031 spin_lock_irqsave(&card->thread_mask_lock, flags);
1032 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1033 (u8) card->thread_start_mask,
1034 (u8) card->thread_allowed_mask,
1035 (u8) card->thread_running_mask);
1036 rc = (card->thread_start_mask & thread);
1037 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1038 return rc;
1039}
1040
1041static void
4927b3f7 1042qeth_start_kernel_thread(struct work_struct *work)
1da177e4 1043{
4927b3f7 1044 struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1da177e4
LT		 1045 QETH_DBF_TEXT(trace , 2, "strthrd");
1046
1047 if (card->read.state != CH_STATE_UP &&
1048 card->write.state != CH_STATE_UP)
1049 return;
1050
1051 if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1052 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
6c951b90
FP		 1053 if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1054 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1da177e4
LT		 1055 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1056 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1057}
1058
1059
1060static void
1061qeth_set_intial_options(struct qeth_card *card)
1062{
1063 card->options.route4.type = NO_ROUTER;
1064#ifdef CONFIG_QETH_IPV6
1065 card->options.route6.type = NO_ROUTER;
1066#endif /* QETH_IPV6 */
1067 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1068 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1069 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1070 card->options.fake_broadcast = 0;
1071 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1072 card->options.fake_ll = 0;
500f83ab
UB		 1073 if (card->info.type == QETH_CARD_TYPE_OSN)
1074 card->options.layer2 = 1;
1075 else
1076 card->options.layer2 = 0;
09d2d38a 1077 card->options.performance_stats = 1;
1da177e4
LT		 1078}
1079
1080/**
1081 * initialize channels ,card and all state machines
1082 */
1083static int
1084qeth_setup_card(struct qeth_card *card)
1085{
1086
1087 QETH_DBF_TEXT(setup, 2, "setupcrd");
1088 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1089
1090 card->read.state = CH_STATE_DOWN;
1091 card->write.state = CH_STATE_DOWN;
1092 card->data.state = CH_STATE_DOWN;
1093 card->state = CARD_STATE_DOWN;
1094 card->lan_online = 0;
1095 card->use_hard_stop = 0;
1096 card->dev = NULL;
1097#ifdef CONFIG_QETH_VLAN
1098 spin_lock_init(&card->vlanlock);
1099 card->vlangrp = NULL;
1100#endif
9123e0d7 1101 spin_lock_init(&card->lock);
1da177e4
LT		 1102 spin_lock_init(&card->ip_lock);
1103 spin_lock_init(&card->thread_mask_lock);
1104 card->thread_start_mask = 0;
1105 card->thread_allowed_mask = 0;
1106 card->thread_running_mask = 0;
4927b3f7 1107 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1da177e4
LT		 1108 INIT_LIST_HEAD(&card->ip_list);
1109 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1110 if (!card->ip_tbd_list) {
1111 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1112 return -ENOMEM;
1113 }
1114 INIT_LIST_HEAD(card->ip_tbd_list);
1115 INIT_LIST_HEAD(&card->cmd_waiter_list);
1116 init_waitqueue_head(&card->wait_q);
1117 /* intial options */
1118 qeth_set_intial_options(card);
1119 /* IP address takeover */
1120 INIT_LIST_HEAD(&card->ipato.entries);
1121 card->ipato.enabled = 0;
1122 card->ipato.invert4 = 0;
1123 card->ipato.invert6 = 0;
1124 /* init QDIO stuff */
1125 qeth_init_qdio_info(card);
1126 return 0;
1127}
1128
1129static int
1130is_1920_device (struct qeth_card *card)
1131{
1132 int single_queue = 0;
1133 struct ccw_device *ccwdev;
1134 struct channelPath_dsc {
1135 u8 flags;
1136 u8 lsn;
1137 u8 desc;
1138 u8 chpid;
1139 u8 swla;
1140 u8 zeroes;
1141 u8 chla;
1142 u8 chpp;
1143 } *chp_dsc;
1144
1145 QETH_DBF_TEXT(setup, 2, "chk_1920");
1146
1147 ccwdev = card->data.ccwdev;
1148 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1149 if (chp_dsc != NULL) {
1150 /* CHPP field bit 6 == 1 -> single queue */
1151 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1152 kfree(chp_dsc);
1153 }
1154 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1155 return single_queue;
1156}
1157
1158static int
1159qeth_determine_card_type(struct qeth_card *card)
1160{
1161 int i = 0;
1162
1163 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1164
500f83ab
UB		 1165 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1166 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1da177e4
LT		 1167 while (known_devices[i][4]) {
1168 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1169 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1170 card->info.type = known_devices[i][4];
500f83ab
UB		 1171 card->qdio.no_out_queues = known_devices[i][8];
1172 card->info.is_multicast_different = known_devices[i][9];
1da177e4
LT		 1173 if (is_1920_device(card)) {
1174 PRINT_INFO("Priority Queueing not able "
1175 "due to hardware limitations!\n");
1176 card->qdio.no_out_queues = 1;
1177 card->qdio.default_out_queue = 0;
e82b0f2c 1178 }
1da177e4
LT		 1179 return 0;
1180 }
1181 i++;
1182 }
1183 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1184 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1185 return -ENOENT;
1186}
1187
1188static int
1189qeth_probe_device(struct ccwgroup_device *gdev)
1190{
1191 struct qeth_card *card;
1192 struct device *dev;
1193 unsigned long flags;
1194 int rc;
1195
1196 QETH_DBF_TEXT(setup, 2, "probedev");
1197
1198 dev = &gdev->dev;
1199 if (!get_device(dev))
1200 return -ENODEV;
1201
500f83ab 1202 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
e82b0f2c 1203
1da177e4
LT		 1204 card = qeth_alloc_card();
1205 if (!card) {
1206 put_device(dev);
1207 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1208 return -ENOMEM;
1209 }
1210 card->read.ccwdev = gdev->cdev[0];
1211 card->write.ccwdev = gdev->cdev[1];
1212 card->data.ccwdev = gdev->cdev[2];
1da177e4
LT		 1213 gdev->dev.driver_data = card;
1214 card->gdev = gdev;
1215 gdev->cdev[0]->handler = qeth_irq;
1216 gdev->cdev[1]->handler = qeth_irq;
1217 gdev->cdev[2]->handler = qeth_irq;
1218
500f83ab
UB		 1219 if ((rc = qeth_determine_card_type(card))){
1220 PRINT_WARN("%s: not a valid card type\n", __func__);
1221 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1222 put_device(dev);
1223 qeth_free_card(card);
1224 return rc;
e82b0f2c 1225 }
500f83ab
UB		 1226 if ((rc = qeth_setup_card(card))){
1227 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1da177e4
LT		 1228 put_device(dev);
1229 qeth_free_card(card);
1230 return rc;
1231 }
500f83ab
UB		 1232 rc = qeth_create_device_attributes(dev);
1233 if (rc) {
1da177e4
LT		 1234 put_device(dev);
1235 qeth_free_card(card);
1236 return rc;
1237 }
1238 /* insert into our internal list */
1239 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1240 list_add_tail(&card->list, &qeth_card_list.list);
1241 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1242 return rc;
1243}
1244
1245
1246static int
1247qeth_get_unitaddr(struct qeth_card *card)
1248{
1249 int length;
1250 char *prcd;
1251 int rc;
1252
1253 QETH_DBF_TEXT(setup, 2, "getunit");
1254 rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1255 if (rc) {
1256 PRINT_ERR("read_conf_data for device %s returned %i\n",
1257 CARD_DDEV_ID(card), rc);
1258 return rc;
1259 }
1260 card->info.chpid = prcd[30];
1261 card->info.unit_addr2 = prcd[31];
1262 card->info.cula = prcd[63];
1263 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1264 (prcd[0x11] == _ascebc['M']));
1265 return 0;
1266}
1267
1268static void
1269qeth_init_tokens(struct qeth_card *card)
1270{
1271 card->token.issuer_rm_w = 0x00010103UL;
1272 card->token.cm_filter_w = 0x00010108UL;
1273 card->token.cm_connection_w = 0x0001010aUL;
1274 card->token.ulp_filter_w = 0x0001010bUL;
1275 card->token.ulp_connection_w = 0x0001010dUL;
1276}
1277
1278static inline __u16
1279raw_devno_from_bus_id(char *id)
1280{
1281 id += (strlen(id) - 4);
1282 return (__u16) simple_strtoul(id, &id, 16);
1283}
1284/**
1285 * setup channel
1286 */
1287static void
1288qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1289{
1290 struct qeth_card *card;
1291
1292 QETH_DBF_TEXT(trace, 4, "setupccw");
1293 card = CARD_FROM_CDEV(channel->ccwdev);
1294 if (channel == &card->read)
1295 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1296 else
1297 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1298 channel->ccw.count = len;
1299 channel->ccw.cda = (__u32) __pa(iob);
1300}
1301
1302/**
1303 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1304 */
1305static struct qeth_cmd_buffer *
1306__qeth_get_buffer(struct qeth_channel *channel)
1307{
1308 __u8 index;
1309
1310 QETH_DBF_TEXT(trace, 6, "getbuff");
1311 index = channel->io_buf_no;
1312 do {
1313 if (channel->iob[index].state == BUF_STATE_FREE) {
1314 channel->iob[index].state = BUF_STATE_LOCKED;
1315 channel->io_buf_no = (channel->io_buf_no + 1) %
1316 QETH_CMD_BUFFER_NO;
1317 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1318 return channel->iob + index;
1319 }
1320 index = (index + 1) % QETH_CMD_BUFFER_NO;
1321 } while(index != channel->io_buf_no);
1322
1323 return NULL;
1324}
1325
1326/**
1327 * release command buffer
1328 */
1329static void
1330qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1331{
1332 unsigned long flags;
1333
1334 QETH_DBF_TEXT(trace, 6, "relbuff");
1335 spin_lock_irqsave(&channel->iob_lock, flags);
1336 memset(iob->data, 0, QETH_BUFSIZE);
1337 iob->state = BUF_STATE_FREE;
1338 iob->callback = qeth_send_control_data_cb;
1339 iob->rc = 0;
1340 spin_unlock_irqrestore(&channel->iob_lock, flags);
1341}
1342
1343static struct qeth_cmd_buffer *
1344qeth_get_buffer(struct qeth_channel *channel)
1345{
1346 struct qeth_cmd_buffer *buffer = NULL;
1347 unsigned long flags;
1348
1349 spin_lock_irqsave(&channel->iob_lock, flags);
1350 buffer = __qeth_get_buffer(channel);
1351 spin_unlock_irqrestore(&channel->iob_lock, flags);
1352 return buffer;
1353}
1354
1355static struct qeth_cmd_buffer *
1356qeth_wait_for_buffer(struct qeth_channel *channel)
1357{
1358 struct qeth_cmd_buffer *buffer;
1359 wait_event(channel->wait_q,
1360 ((buffer = qeth_get_buffer(channel)) != NULL));
1361 return buffer;
1362}
1363
1364static void
1365qeth_clear_cmd_buffers(struct qeth_channel *channel)
1366{
1380fee2 1367 int cnt;
1da177e4
LT		 1368
1369 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1370 qeth_release_buffer(channel,&channel->iob[cnt]);
1371 channel->buf_no = 0;
1372 channel->io_buf_no = 0;
1373}
1374
1375/**
1376 * start IDX for read and write channel
1377 */
1378static int
1379qeth_idx_activate_get_answer(struct qeth_channel *channel,
1380 void (*idx_reply_cb)(struct qeth_channel *,
1381 struct qeth_cmd_buffer *))
1382{
1383 struct qeth_cmd_buffer *iob;
1384 unsigned long flags;
1385 int rc;
1386 struct qeth_card *card;
1387
1388 QETH_DBF_TEXT(setup, 2, "idxanswr");
1389 card = CARD_FROM_CDEV(channel->ccwdev);
1390 iob = qeth_get_buffer(channel);
1391 iob->callback = idx_reply_cb;
1392 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1393 channel->ccw.count = QETH_BUFSIZE;
1394 channel->ccw.cda = (__u32) __pa(iob->data);
1395
1396 wait_event(card->wait_q,
973bd993 1397 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1da177e4
LT		 1398 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1399 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1400 rc = ccw_device_start(channel->ccwdev,
1401 &channel->ccw,(addr_t) iob, 0, 0);
1402 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1403
1404 if (rc) {
1405 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1406 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1407 atomic_set(&channel->irq_pending, 0);
1408 wake_up(&card->wait_q);
1409 return rc;
1410 }
1411 rc = wait_event_interruptible_timeout(card->wait_q,
1412 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1413 if (rc == -ERESTARTSYS)
1414 return rc;
1415 if (channel->state != CH_STATE_UP){
1416 rc = -ETIME;
1417 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1418 qeth_clear_cmd_buffers(channel);
1419 } else
1420 rc = 0;
1421 return rc;
1422}
1423
1424static int
1425qeth_idx_activate_channel(struct qeth_channel *channel,
1426 void (*idx_reply_cb)(struct qeth_channel *,
1427 struct qeth_cmd_buffer *))
1428{
1429 struct qeth_card *card;
1430 struct qeth_cmd_buffer *iob;
1431 unsigned long flags;
1432 __u16 temp;
1433 int rc;
1434
1435 card = CARD_FROM_CDEV(channel->ccwdev);
1436
1437 QETH_DBF_TEXT(setup, 2, "idxactch");
1438
1439 iob = qeth_get_buffer(channel);
1440 iob->callback = idx_reply_cb;
1441 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1442 channel->ccw.count = IDX_ACTIVATE_SIZE;
1443 channel->ccw.cda = (__u32) __pa(iob->data);
1444 if (channel == &card->write) {
1445 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1446 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1447 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1448 card->seqno.trans_hdr++;
1449 } else {
1450 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1451 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1452 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1453 }
1454 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1455 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1456 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1457 &card->info.func_level,sizeof(__u16));
1458 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1459 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1460 temp = (card->info.cula << 8) + card->info.unit_addr2;
1461 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1462
1463 wait_event(card->wait_q,
973bd993 1464 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1da177e4
LT		 1465 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1466 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1467 rc = ccw_device_start(channel->ccwdev,
1468 &channel->ccw,(addr_t) iob, 0, 0);
1469 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1470
1471 if (rc) {
1472 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1473 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1474 atomic_set(&channel->irq_pending, 0);
1475 wake_up(&card->wait_q);
1476 return rc;
1477 }
1478 rc = wait_event_interruptible_timeout(card->wait_q,
1479 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1480 if (rc == -ERESTARTSYS)
1481 return rc;
1482 if (channel->state != CH_STATE_ACTIVATING) {
1483 PRINT_WARN("qeth: IDX activate timed out!\n");
1484 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1485 qeth_clear_cmd_buffers(channel);
1486 return -ETIME;
1487 }
1488 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1489}
1490
1491static int
1492qeth_peer_func_level(int level)
1493{
1494 if ((level & 0xff) == 8)
1495 return (level & 0xff) + 0x400;
1496 if (((level >> 8) & 3) == 1)
1497 return (level & 0xff) + 0x200;
1498 return level;
1499}
1500
1501static void
1502qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1503{
1504 struct qeth_card *card;
1505 __u16 temp;
1506
1507 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1508
1509 if (channel->state == CH_STATE_DOWN) {
1510 channel->state = CH_STATE_ACTIVATING;
1511 goto out;
1512 }
1513 card = CARD_FROM_CDEV(channel->ccwdev);
1514
1515 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1516 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1517 "reply\n", CARD_WDEV_ID(card));
1518 goto out;
1519 }
1520 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1521 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1522 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1523 "function level mismatch "
1524 "(sent: 0x%x, received: 0x%x)\n",
1525 CARD_WDEV_ID(card), card->info.func_level, temp);
1526 goto out;
1527 }
1528 channel->state = CH_STATE_UP;
1529out:
1530 qeth_release_buffer(channel, iob);
1531}
1532
1533static int
1534qeth_check_idx_response(unsigned char *buffer)
1535{
1536 if (!buffer)
1537 return 0;
1538
1539 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1540 if ((buffer[2] & 0xc0) == 0xc0) {
1541 PRINT_WARN("received an IDX TERMINATE "
1542 "with cause code 0x%02x%s\n",
1543 buffer[4],
1544 ((buffer[4] == 0x22) ?
1545 " -- try another portname" : ""));
1546 QETH_DBF_TEXT(trace, 2, "ckidxres");
1547 QETH_DBF_TEXT(trace, 2, " idxterm");
1548 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1549 return -EIO;
1550 }
1551 return 0;
1552}
1553
1554static void
1555qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1556{
1557 struct qeth_card *card;
1558 __u16 temp;
1559
1560 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1561 if (channel->state == CH_STATE_DOWN) {
1562 channel->state = CH_STATE_ACTIVATING;
1563 goto out;
1564 }
1565
1566 card = CARD_FROM_CDEV(channel->ccwdev);
1567 if (qeth_check_idx_response(iob->data)) {
1568 goto out;
1569 }
1570 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1571 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1572 "reply\n", CARD_RDEV_ID(card));
1573 goto out;
1574 }
1575
1576/**
1577 * temporary fix for microcode bug
1578 * to revert it,replace OR by AND
1579 */
1580 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1581 (card->info.type == QETH_CARD_TYPE_OSAE) )
1582 card->info.portname_required = 1;
1583
1584 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1585 if (temp != qeth_peer_func_level(card->info.func_level)) {
1586 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1587 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1588 CARD_RDEV_ID(card), card->info.func_level, temp);
1589 goto out;
1590 }
1591 memcpy(&card->token.issuer_rm_r,
1592 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1593 QETH_MPC_TOKEN_LENGTH);
1594 memcpy(&card->info.mcl_level[0],
1595 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1596 channel->state = CH_STATE_UP;
1597out:
1598 qeth_release_buffer(channel,iob);
1599}
1600
1601static int
1602qeth_issue_next_read(struct qeth_card *card)
1603{
1604 int rc;
1605 struct qeth_cmd_buffer *iob;
1606
1607 QETH_DBF_TEXT(trace,5,"issnxrd");
1608 if (card->read.state != CH_STATE_UP)
1609 return -EIO;
1610 iob = qeth_get_buffer(&card->read);
1611 if (!iob) {
1612 PRINT_WARN("issue_next_read failed: no iob available!\n");
1613 return -ENOMEM;
1614 }
1615 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1616 wait_event(card->wait_q,
973bd993 1617 atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1da177e4
LT		 1618 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1619 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1620 (addr_t) iob, 0, 0);
1621 if (rc) {
1622 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1623 atomic_set(&card->read.irq_pending, 0);
1624 qeth_schedule_recovery(card);
1625 wake_up(&card->wait_q);
1626 }
1627 return rc;
1628}
1629
1630static struct qeth_reply *
1631qeth_alloc_reply(struct qeth_card *card)
1632{
1633 struct qeth_reply *reply;
1634
88abaab4 1635 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1da177e4 1636 if (reply){
1da177e4
LT		 1637 atomic_set(&reply->refcnt, 1);
1638 reply->card = card;
1639 };
1640 return reply;
1641}
1642
1643static void
1644qeth_get_reply(struct qeth_reply *reply)
1645{
1646 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1647 atomic_inc(&reply->refcnt);
1648}
1649
1650static void
1651qeth_put_reply(struct qeth_reply *reply)
1652{
1653 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1654 if (atomic_dec_and_test(&reply->refcnt))
1655 kfree(reply);
1656}
1657
1658static void
1659qeth_cmd_timeout(unsigned long data)
1660{
1661 struct qeth_reply *reply, *list_reply, *r;
1662 unsigned long flags;
1663
1664 reply = (struct qeth_reply *) data;
1665 spin_lock_irqsave(&reply->card->lock, flags);
1666 list_for_each_entry_safe(list_reply, r,
1667 &reply->card->cmd_waiter_list, list) {
1668 if (reply == list_reply){
1669 qeth_get_reply(reply);
1670 list_del_init(&reply->list);
1671 spin_unlock_irqrestore(&reply->card->lock, flags);
1672 reply->rc = -ETIME;
1673 reply->received = 1;
1674 wake_up(&reply->wait_q);
1675 qeth_put_reply(reply);
1676 return;
1677 }
1678 }
1679 spin_unlock_irqrestore(&reply->card->lock, flags);
1680}
1681
66cc5d5a 1682
1da177e4
LT		 1683static struct qeth_ipa_cmd *
1684qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1685{
1686 struct qeth_ipa_cmd *cmd = NULL;
1687
1688 QETH_DBF_TEXT(trace,5,"chkipad");
1689 if (IS_IPA(iob->data)){
1690 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1691 if (IS_IPA_REPLY(cmd))
1692 return cmd;
1693 else {
1694 switch (cmd->hdr.command) {
1695 case IPA_CMD_STOPLAN:
1696 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1697 "there is a network problem or "
1698 "someone pulled the cable or "
1699 "disabled the port.\n",
1700 QETH_CARD_IFNAME(card),
1701 card->info.chpid);
1702 card->lan_online = 0;
66cc5d5a
FP		 1703 if (card->dev && netif_carrier_ok(card->dev))
1704 netif_carrier_off(card->dev);
1da177e4
LT		 1705 return NULL;
1706 case IPA_CMD_STARTLAN:
1707 PRINT_INFO("Link reestablished on %s "
1708 "(CHPID 0x%X). Scheduling "
1709 "IP address reset.\n",
1710 QETH_CARD_IFNAME(card),
1711 card->info.chpid);
330b6369 1712 netif_carrier_on(card->dev);
9123e0d7 1713 qeth_schedule_recovery(card);
1da177e4 1714 return NULL;
500f83ab
UB		 1715 case IPA_CMD_MODCCID:
1716 return cmd;
1da177e4
LT		 1717 case IPA_CMD_REGISTER_LOCAL_ADDR:
1718 QETH_DBF_TEXT(trace,3, "irla");
1719 break;
1720 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1721 QETH_DBF_TEXT(trace,3, "urla");
1722 break;
1723 default:
1724 PRINT_WARN("Received data is IPA "
1725 "but not a reply!\n");
1726 break;
1727 }
1728 }
1729 }
1730 return cmd;
1731}
1732
1733/**
1734 * wake all waiting ipa commands
1735 */
1736static void
1737qeth_clear_ipacmd_list(struct qeth_card *card)
1738{
1739 struct qeth_reply *reply, *r;
1740 unsigned long flags;
1741
1742 QETH_DBF_TEXT(trace, 4, "clipalst");
1743
1744 spin_lock_irqsave(&card->lock, flags);
1745 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1746 qeth_get_reply(reply);
1747 reply->rc = -EIO;
1748 reply->received = 1;
1749 list_del_init(&reply->list);
1750 wake_up(&reply->wait_q);
1751 qeth_put_reply(reply);
1752 }
1753 spin_unlock_irqrestore(&card->lock, flags);
1754}
1755
1756static void
1757qeth_send_control_data_cb(struct qeth_channel *channel,
1758 struct qeth_cmd_buffer *iob)
1759{
1760 struct qeth_card *card;
1761 struct qeth_reply *reply, *r;
1762 struct qeth_ipa_cmd *cmd;
1763 unsigned long flags;
1764 int keep_reply;
1765
1766 QETH_DBF_TEXT(trace,4,"sndctlcb");
1767
1768 card = CARD_FROM_CDEV(channel->ccwdev);
1769 if (qeth_check_idx_response(iob->data)) {
1770 qeth_clear_ipacmd_list(card);
1771 qeth_schedule_recovery(card);
1772 goto out;
1773 }
1774
1775 cmd = qeth_check_ipa_data(card, iob);
1776 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1777 goto out;
500f83ab
UB		 1778 /*in case of OSN : check if cmd is set */
1779 if (card->info.type == QETH_CARD_TYPE_OSN &&
1780 cmd &&
1781 cmd->hdr.command != IPA_CMD_STARTLAN &&
1782 card->osn_info.assist_cb != NULL) {
1783 card->osn_info.assist_cb(card->dev, cmd);
1784 goto out;
1785 }
1da177e4
LT		 1786
1787 spin_lock_irqsave(&card->lock, flags);
1788 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1789 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1790 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1791 qeth_get_reply(reply);
1792 list_del_init(&reply->list);
1793 spin_unlock_irqrestore(&card->lock, flags);
1794 keep_reply = 0;
1795 if (reply->callback != NULL) {
1796 if (cmd) {
1797 reply->offset = (__u16)((char*)cmd -
1798 (char *)iob->data);
1799 keep_reply = reply->callback(card,
1800 reply,
1801 (unsigned long)cmd);
500f83ab 1802 } else
1da177e4
LT		 1803 keep_reply = reply->callback(card,
1804 reply,
1805 (unsigned long)iob);
1806 }
1807 if (cmd)
1808 reply->rc = (u16) cmd->hdr.return_code;
1809 else if (iob->rc)
1810 reply->rc = iob->rc;
1811 if (keep_reply) {
1812 spin_lock_irqsave(&card->lock, flags);
1813 list_add_tail(&reply->list,
1814 &card->cmd_waiter_list);
1815 spin_unlock_irqrestore(&card->lock, flags);
1816 } else {
1817 reply->received = 1;
1818 wake_up(&reply->wait_q);
1819 }
1820 qeth_put_reply(reply);
1821 goto out;
1822 }
1823 }
1824 spin_unlock_irqrestore(&card->lock, flags);
1825out:
1826 memcpy(&card->seqno.pdu_hdr_ack,
1827 QETH_PDU_HEADER_SEQ_NO(iob->data),
1828 QETH_SEQ_NO_LENGTH);
1829 qeth_release_buffer(channel,iob);
1830}
1831
500f83ab
UB		 1832static inline void
1833qeth_prepare_control_data(struct qeth_card *card, int len,
1834struct qeth_cmd_buffer *iob)
1835{
1836 qeth_setup_ccw(&card->write,iob->data,len);
1837 iob->callback = qeth_release_buffer;
1838
1839 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1840 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1841 card->seqno.trans_hdr++;
1842 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1843 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1844 card->seqno.pdu_hdr++;
1845 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1846 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1847 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1848}
e82b0f2c 1849
1da177e4
LT		 1850static int
1851qeth_send_control_data(struct qeth_card *card, int len,
1852 struct qeth_cmd_buffer *iob,
1853 int (*reply_cb)
1854 (struct qeth_card *, struct qeth_reply*, unsigned long),
1855 void *reply_param)
1856
1857{
1858 int rc;
1859 unsigned long flags;
500f83ab 1860 struct qeth_reply *reply = NULL;
1da177e4
LT		 1861 struct timer_list timer;
1862
1863 QETH_DBF_TEXT(trace, 2, "sendctl");
1864
1da177e4
LT		 1865 reply = qeth_alloc_reply(card);
1866 if (!reply) {
1867 PRINT_WARN("Could no alloc qeth_reply!\n");
1868 return -ENOMEM;
1869 }
1870 reply->callback = reply_cb;
1871 reply->param = reply_param;
1872 if (card->state == CARD_STATE_DOWN)
1873 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1874 else
1875 reply->seqno = card->seqno.ipa++;
1876 init_timer(&timer);
1877 timer.function = qeth_cmd_timeout;
1878 timer.data = (unsigned long) reply;
1da177e4
LT		 1879 init_waitqueue_head(&reply->wait_q);
1880 spin_lock_irqsave(&card->lock, flags);
1881 list_add_tail(&reply->list, &card->cmd_waiter_list);
1882 spin_unlock_irqrestore(&card->lock, flags);
1883 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1884 wait_event(card->wait_q,
973bd993 1885 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
500f83ab
UB		 1886 qeth_prepare_control_data(card, len, iob);
1887 if (IS_IPA(iob->data))
1888 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1889 else
1890 timer.expires = jiffies + QETH_TIMEOUT;
1da177e4
LT		 1891 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1892 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1893 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1894 (addr_t) iob, 0, 0);
1895 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1896 if (rc){
1897 PRINT_WARN("qeth_send_control_data: "
1898 "ccw_device_start rc = %i\n", rc);
1899 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1900 spin_lock_irqsave(&card->lock, flags);
1901 list_del_init(&reply->list);
1902 qeth_put_reply(reply);
1903 spin_unlock_irqrestore(&card->lock, flags);
1904 qeth_release_buffer(iob->channel, iob);
1905 atomic_set(&card->write.irq_pending, 0);
1906 wake_up(&card->wait_q);
1907 return rc;
1908 }
1909 add_timer(&timer);
1910 wait_event(reply->wait_q, reply->received);
1911 del_timer_sync(&timer);
1912 rc = reply->rc;
1913 qeth_put_reply(reply);
1914 return rc;
1915}
1916
500f83ab
UB		 1917static int
1918qeth_osn_send_control_data(struct qeth_card *card, int len,
1919 struct qeth_cmd_buffer *iob)
1920{
1921 unsigned long flags;
1922 int rc = 0;
1923
1924 QETH_DBF_TEXT(trace, 5, "osndctrd");
1925
1926 wait_event(card->wait_q,
973bd993 1927 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
500f83ab
UB		 1928 qeth_prepare_control_data(card, len, iob);
1929 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1930 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1931 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1932 (addr_t) iob, 0, 0);
1933 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1934 if (rc){
1935 PRINT_WARN("qeth_osn_send_control_data: "
1936 "ccw_device_start rc = %i\n", rc);
1937 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1938 qeth_release_buffer(iob->channel, iob);
1939 atomic_set(&card->write.irq_pending, 0);
1940 wake_up(&card->wait_q);
1941 }
1942 return rc;
e82b0f2c 1943}
500f83ab
UB		 1944
1945static inline void
1946qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1947 char prot_type)
1948{
1949 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1950 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1951 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1952 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1953}
1954
1955static int
1956qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1957 int data_len)
1958{
1959 u16 s1, s2;
1960
4965e97f 1961 QETH_DBF_TEXT(trace,4,"osndipa");
500f83ab
UB		 1962
1963 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1964 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1965 s2 = (u16)data_len;
1966 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1967 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1968 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1969 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1970 return qeth_osn_send_control_data(card, s1, iob);
1971}
e82b0f2c 1972
1da177e4
LT		 1973static int
1974qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1975 int (*reply_cb)
1976 (struct qeth_card *,struct qeth_reply*, unsigned long),
1977 void *reply_param)
1978{
1979 int rc;
1980 char prot_type;
1981
1982 QETH_DBF_TEXT(trace,4,"sendipa");
1983
1da177e4 1984 if (card->options.layer2)
500f83ab
UB		 1985 if (card->info.type == QETH_CARD_TYPE_OSN)
1986 prot_type = QETH_PROT_OSN2;
1987 else
1988 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 1989 else
1990 prot_type = QETH_PROT_TCPIP;
500f83ab 1991 qeth_prepare_ipa_cmd(card,iob,prot_type);
1da177e4
LT		 1992 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1993 reply_cb, reply_param);
1994 return rc;
1995}
1996
1997
1998static int
1999qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2000 unsigned long data)
2001{
2002 struct qeth_cmd_buffer *iob;
2003
2004 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2005
2006 iob = (struct qeth_cmd_buffer *) data;
2007 memcpy(&card->token.cm_filter_r,
2008 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2009 QETH_MPC_TOKEN_LENGTH);
2010 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2011 return 0;
2012}
2013
2014static int
2015qeth_cm_enable(struct qeth_card *card)
2016{
2017 int rc;
2018 struct qeth_cmd_buffer *iob;
2019
2020 QETH_DBF_TEXT(setup,2,"cmenable");
2021
2022 iob = qeth_wait_for_buffer(&card->write);
2023 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2024 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2025 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2026 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2027 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2028
2029 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2030 qeth_cm_enable_cb, NULL);
2031 return rc;
2032}
2033
2034static int
2035qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2036 unsigned long data)
2037{
2038
2039 struct qeth_cmd_buffer *iob;
2040
2041 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2042
2043 iob = (struct qeth_cmd_buffer *) data;
2044 memcpy(&card->token.cm_connection_r,
2045 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2046 QETH_MPC_TOKEN_LENGTH);
2047 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2048 return 0;
2049}
2050
2051static int
2052qeth_cm_setup(struct qeth_card *card)
2053{
2054 int rc;
2055 struct qeth_cmd_buffer *iob;
2056
2057 QETH_DBF_TEXT(setup,2,"cmsetup");
2058
2059 iob = qeth_wait_for_buffer(&card->write);
2060 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2061 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2062 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2063 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2064 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2065 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2066 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2067 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2068 qeth_cm_setup_cb, NULL);
2069 return rc;
2070
2071}
2072
2073static int
2074qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2075 unsigned long data)
2076{
2077
2078 __u16 mtu, framesize;
2079 __u16 len;
2080 __u8 link_type;
2081 struct qeth_cmd_buffer *iob;
2082
2083 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2084
2085 iob = (struct qeth_cmd_buffer *) data;
2086 memcpy(&card->token.ulp_filter_r,
2087 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2088 QETH_MPC_TOKEN_LENGTH);
2089 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2090 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2091 mtu = qeth_get_mtu_outof_framesize(framesize);
2092 if (!mtu) {
2093 iob->rc = -EINVAL;
2094 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2095 return 0;
2096 }
2097 card->info.max_mtu = mtu;
2098 card->info.initial_mtu = mtu;
2099 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2100 } else {
2101 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2102 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2103 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2104 }
2105
2106 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2107 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2108 memcpy(&link_type,
2109 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2110 card->info.link_type = link_type;
2111 } else
2112 card->info.link_type = 0;
2113 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2114 return 0;
2115}
2116
2117static int
2118qeth_ulp_enable(struct qeth_card *card)
2119{
2120 int rc;
2121 char prot_type;
2122 struct qeth_cmd_buffer *iob;
2123
2124 /*FIXME: trace view callbacks*/
2125 QETH_DBF_TEXT(setup,2,"ulpenabl");
2126
2127 iob = qeth_wait_for_buffer(&card->write);
2128 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2129
2130 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2131 (__u8) card->info.portno;
2132 if (card->options.layer2)
500f83ab
UB		 2133 if (card->info.type == QETH_CARD_TYPE_OSN)
2134 prot_type = QETH_PROT_OSN2;
2135 else
2136 prot_type = QETH_PROT_LAYER2;
1da177e4
LT		 2137 else
2138 prot_type = QETH_PROT_TCPIP;
2139
2140 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2141 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2142 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2143 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2144 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2145 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2146 card->info.portname, 9);
2147 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2148 qeth_ulp_enable_cb, NULL);
2149 return rc;
2150
2151}
2152
2153static inline __u16
2154__raw_devno_from_bus_id(char *id)
2155{
2156 id += (strlen(id) - 4);
2157 return (__u16) simple_strtoul(id, &id, 16);
2158}
2159
2160static int
2161qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2162 unsigned long data)
2163{
2164 struct qeth_cmd_buffer *iob;
2165
2166 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2167
2168 iob = (struct qeth_cmd_buffer *) data;
2169 memcpy(&card->token.ulp_connection_r,
2170 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2171 QETH_MPC_TOKEN_LENGTH);
2172 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2173 return 0;
2174}
2175
2176static int
2177qeth_ulp_setup(struct qeth_card *card)
2178{
2179 int rc;
2180 __u16 temp;
2181 struct qeth_cmd_buffer *iob;
2182
2183 QETH_DBF_TEXT(setup,2,"ulpsetup");
2184
2185 iob = qeth_wait_for_buffer(&card->write);
2186 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2187
2188 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2189 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2190 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2191 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2192 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2193 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2194
2195 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2196 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2197 temp = (card->info.cula << 8) + card->info.unit_addr2;
2198 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2199 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2200 qeth_ulp_setup_cb, NULL);
2201 return rc;
2202}
2203
2204static inline int
6c6b3e7c
FP		 2205qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2206 unsigned int siga_error, const char *dbftext)
1da177e4 2207{
1da177e4 2208 if (qdio_error || siga_error) {
6c6b3e7c
FP		 2209 QETH_DBF_TEXT(trace, 2, dbftext);
2210 QETH_DBF_TEXT(qerr, 2, dbftext);
1da177e4 2211 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
6c6b3e7c 2212 buf->element[15].flags & 0xff);
1da177e4 2213 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
6c6b3e7c 2214 buf->element[14].flags & 0xff);
1da177e4
LT		 2215 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2216 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
6c6b3e7c 2217 return 1;
1da177e4 2218 }
6c6b3e7c 2219 return 0;
1da177e4
LT		 2220}
2221
2222static inline struct sk_buff *
500f83ab 2223qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
1da177e4
LT		 2224{
2225 struct sk_buff* skb;
500f83ab
UB		 2226 int add_len;
2227
2228 add_len = 0;
2229 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2230 add_len = sizeof(struct qeth_hdr);
1da177e4 2231#ifdef CONFIG_QETH_VLAN
500f83ab
UB		 2232 else
2233 add_len = VLAN_HLEN;
1da177e4 2234#endif
500f83ab
UB		 2235 skb = dev_alloc_skb(length + add_len);
2236 if (skb && add_len)
2237 skb_reserve(skb, add_len);
1da177e4
LT		 2238 return skb;
2239}
2240
2241static inline struct sk_buff *
2242qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2243 struct qdio_buffer_element **__element, int *__offset,
2244 struct qeth_hdr **hdr)
2245{
2246 struct qdio_buffer_element *element = *__element;
2247 int offset = *__offset;
2248 struct sk_buff *skb = NULL;
2249 int skb_len;
2250 void *data_ptr;
2251 int data_len;
2252
2253 QETH_DBF_TEXT(trace,6,"nextskb");
2254 /* qeth_hdr must not cross element boundaries */
2255 if (element->length < offset + sizeof(struct qeth_hdr)){
2256 if (qeth_is_last_sbale(element))
2257 return NULL;
2258 element++;
2259 offset = 0;
2260 if (element->length < sizeof(struct qeth_hdr))
2261 return NULL;
2262 }
2263 *hdr = element->addr + offset;
2264
2265 offset += sizeof(struct qeth_hdr);
2266 if (card->options.layer2)
500f83ab
UB		 2267 if (card->info.type == QETH_CARD_TYPE_OSN)
2268 skb_len = (*hdr)->hdr.osn.pdu_length;
2269 else
2270 skb_len = (*hdr)->hdr.l2.pkt_length;
1da177e4
LT		 2271 else
2272 skb_len = (*hdr)->hdr.l3.length;
2273
2274 if (!skb_len)
2275 return NULL;
2276 if (card->options.fake_ll){
e23dd9cd 2277 if(card->dev->type == ARPHRD_IEEE802_TR){
500f83ab 2278 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
e23dd9cd
FP		 2279 goto no_mem;
2280 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2281 } else {
500f83ab 2282 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
e23dd9cd
FP		 2283 goto no_mem;
2284 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2285 }
500f83ab 2286 } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
1da177e4
LT		 2287 goto no_mem;
2288 data_ptr = element->addr + offset;
2289 while (skb_len) {
2290 data_len = min(skb_len, (int)(element->length - offset));
2291 if (data_len)
2292 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2293 skb_len -= data_len;
2294 if (skb_len){
2295 if (qeth_is_last_sbale(element)){
2296 QETH_DBF_TEXT(trace,4,"unexeob");
2297 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2298 QETH_DBF_TEXT(qerr,2,"unexeob");
2299 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2300 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2301 dev_kfree_skb_any(skb);
2302 card->stats.rx_errors++;
2303 return NULL;
2304 }
2305 element++;
2306 offset = 0;
2307 data_ptr = element->addr;
2308 } else {
2309 offset += data_len;
2310 }
2311 }
2312 *__element = element;
2313 *__offset = offset;
2314 return skb;
2315no_mem:
2316 if (net_ratelimit()){
2317 PRINT_WARN("No memory for packet received on %s.\n",
2318 QETH_CARD_IFNAME(card));
2319 QETH_DBF_TEXT(trace,2,"noskbmem");
2320 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2321 }
2322 card->stats.rx_dropped++;
2323 return NULL;
2324}
2325
ab611487 2326static inline __be16
1da177e4
LT		 2327qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2328{
2329 struct qeth_card *card;
2330 struct ethhdr *eth;
2331
2332 QETH_DBF_TEXT(trace,6,"typtrans");
2333
2334 card = (struct qeth_card *)dev->priv;
2335#ifdef CONFIG_TR
2336 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2337 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2338 return tr_type_trans(skb,dev);
2339#endif /* CONFIG_TR */
2340 skb->mac.raw = skb->data;
2341 skb_pull(skb, ETH_HLEN );
2342 eth = eth_hdr(skb);
2343
2344 if (*eth->h_dest & 1) {
2345 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2346 skb->pkt_type = PACKET_BROADCAST;
2347 else
2348 skb->pkt_type = PACKET_MULTICAST;
2349 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2350 skb->pkt_type = PACKET_OTHERHOST;
2351
2352 if (ntohs(eth->h_proto) >= 1536)
2353 return eth->h_proto;
2354 if (*(unsigned short *) (skb->data) == 0xFFFF)
2355 return htons(ETH_P_802_3);
2356 return htons(ETH_P_802_2);
2357}
2358
2359static inline void
e23dd9cd
FP		 2360qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2361 struct qeth_hdr *hdr)
2362{
2363 struct trh_hdr *fake_hdr;
2364 struct trllc *fake_llc;
2365 struct iphdr *ip_hdr;
2366
2367 QETH_DBF_TEXT(trace,5,"skbfktr");
2368 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2369 /* this is a fake ethernet header */
2370 fake_hdr = (struct trh_hdr *) skb->mac.raw;
2371
2372 /* the destination MAC address */
2373 switch (skb->pkt_type){
2374 case PACKET_MULTICAST:
2375 switch (skb->protocol){
2376#ifdef CONFIG_QETH_IPV6
2377 case __constant_htons(ETH_P_IPV6):
2378 ndisc_mc_map((struct in6_addr *)
2379 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2380 fake_hdr->daddr, card->dev, 0);
2381 break;
2382#endif /* CONFIG_QETH_IPV6 */
2383 case __constant_htons(ETH_P_IP):
2384 ip_hdr = (struct iphdr *)skb->data;
2385 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2386 break;
2387 default:
2388 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2389 }
2390 break;
2391 case PACKET_BROADCAST:
2392 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2393 break;
2394 default:
2395 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2396 }
2397 /* the source MAC address */
2398 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2399 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2400 else
2401 memset(fake_hdr->saddr, 0, TR_ALEN);
2402 fake_hdr->rcf=0;
2403 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2404 fake_llc->dsap = EXTENDED_SAP;
2405 fake_llc->ssap = EXTENDED_SAP;
2406 fake_llc->llc = UI_CMD;
2407 fake_llc->protid[0] = 0;
2408 fake_llc->protid[1] = 0;
2409 fake_llc->protid[2] = 0;
2410 fake_llc->ethertype = ETH_P_IP;
2411}
2412
2413static inline void
2414qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
1da177e4
LT		 2415 struct qeth_hdr *hdr)
2416{
2417 struct ethhdr *fake_hdr;
2418 struct iphdr *ip_hdr;
2419
e23dd9cd
FP		 2420 QETH_DBF_TEXT(trace,5,"skbfketh");
2421 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
1da177e4
LT		 2422 /* this is a fake ethernet header */
2423 fake_hdr = (struct ethhdr *) skb->mac.raw;
2424
2425 /* the destination MAC address */
2426 switch (skb->pkt_type){
2427 case PACKET_MULTICAST:
2428 switch (skb->protocol){
2429#ifdef CONFIG_QETH_IPV6
2430 case __constant_htons(ETH_P_IPV6):
2431 ndisc_mc_map((struct in6_addr *)
2432 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2433 fake_hdr->h_dest, card->dev, 0);
2434 break;
2435#endif /* CONFIG_QETH_IPV6 */
2436 case __constant_htons(ETH_P_IP):
2437 ip_hdr = (struct iphdr *)skb->data;
e23dd9cd 2438 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
1da177e4
LT		 2439 break;
2440 default:
2441 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2442 }
2443 break;
2444 case PACKET_BROADCAST:
2445 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2446 break;
2447 default:
2448 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2449 }
2450 /* the source MAC address */
2451 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2452 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2453 else
2454 memset(fake_hdr->h_source, 0, ETH_ALEN);
2455 /* the protocol */
2456 fake_hdr->h_proto = skb->protocol;
2457}
2458
e23dd9cd
FP		 2459static inline void
2460qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2461 struct qeth_hdr *hdr)
2462{
2463 if (card->dev->type == ARPHRD_IEEE802_TR)
2464 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2465 else
2466 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2467}
2468
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;
2563
2564 /* get first element of current buffer */
2565 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2566 offset = 0;
09d2d38a
FP		 2567 if (card->options.performance_stats)
2568 card->perf_stats.bufs_rec++;
1da177e4
LT		 2569 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2570 &offset, &hdr))) {
2571 skb->dev = card->dev;
2572 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2573 vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
e82b0f2c 2574 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
330b6369 2575 vlan_tag = qeth_rebuild_skb(card, skb, hdr);
500f83ab
UB		 2576 else { /*in case of OSN*/
2577 skb_push(skb, sizeof(struct qeth_hdr));
2578 memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2579 }
1da177e4
LT		 2580 /* is device UP ? */
2581 if (!(card->dev->flags & IFF_UP)){
2582 dev_kfree_skb_any(skb);
2583 continue;
2584 }
330b6369
FP		 2585 if (card->info.type == QETH_CARD_TYPE_OSN)
2586 rxrc = card->osn_info.data_cb(skb);
2587 else
1da177e4
LT		 2588#ifdef CONFIG_QETH_VLAN
2589 if (vlan_tag)
330b6369
FP		 2590 if (card->vlangrp)
2591 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2592 else {
2593 dev_kfree_skb_any(skb);
2594 continue;
2595 }
1da177e4
LT		 2596 else
2597#endif
500f83ab 2598 rxrc = netif_rx(skb);
1da177e4
LT		 2599 card->dev->last_rx = jiffies;
2600 card->stats.rx_packets++;
2601 card->stats.rx_bytes += skb->len;
2602 }
2603}
2604
2605static inline struct qeth_buffer_pool_entry *
2606qeth_get_buffer_pool_entry(struct qeth_card *card)
2607{
2608 struct qeth_buffer_pool_entry *entry;
2609
2610 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2611 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2612 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2613 struct qeth_buffer_pool_entry, list);
2614 list_del_init(&entry->list);
2615 return entry;
2616 }
2617 return NULL;
2618}
2619
2620static inline void
2621qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2622{
2623 struct qeth_buffer_pool_entry *pool_entry;
2624 int i;
09d2d38a 2625
1da177e4
LT		 2626 pool_entry = qeth_get_buffer_pool_entry(card);
2627 /*
2628 * since the buffer is accessed only from the input_tasklet
2629 * there shouldn't be a need to synchronize; also, since we use
2630 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2631 * buffers
2632 */
2633 BUG_ON(!pool_entry);
2634
2635 buf->pool_entry = pool_entry;
2636 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2637 buf->buffer->element[i].length = PAGE_SIZE;
2638 buf->buffer->element[i].addr = pool_entry->elements[i];
2639 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2640 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2641 else
2642 buf->buffer->element[i].flags = 0;
2643 }
2644 buf->state = QETH_QDIO_BUF_EMPTY;
2645}
2646
2647static inline void
2648qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2649 struct qeth_qdio_out_buffer *buf)
2650{
2651 int i;
2652 struct sk_buff *skb;
2653
2654 /* is PCI flag set on buffer? */
2655 if (buf->buffer->element[0].flags & 0x40)
2656 atomic_dec(&queue->set_pci_flags_count);
2657
2658 while ((skb = skb_dequeue(&buf->skb_list))){
2659 atomic_dec(&skb->users);
2660 dev_kfree_skb_any(skb);
2661 }
2662 qeth_eddp_buf_release_contexts(buf);
2663 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2664 buf->buffer->element[i].length = 0;
2665 buf->buffer->element[i].addr = NULL;
2666 buf->buffer->element[i].flags = 0;
2667 }
2668 buf->next_element_to_fill = 0;
2669 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2670}
2671
2672static inline void
2673qeth_queue_input_buffer(struct qeth_card *card, int index)
2674{
2675 struct qeth_qdio_q *queue = card->qdio.in_q;
2676 int count;
2677 int i;
2678 int rc;
2679
2680 QETH_DBF_TEXT(trace,6,"queinbuf");
2681 count = (index < queue->next_buf_to_init)?
2682 card->qdio.in_buf_pool.buf_count -
2683 (queue->next_buf_to_init - index) :
2684 card->qdio.in_buf_pool.buf_count -
2685 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2686 /* only requeue at a certain threshold to avoid SIGAs */
2687 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2688 for (i = queue->next_buf_to_init;
2689 i < queue->next_buf_to_init + count; ++i)
2690 qeth_init_input_buffer(card,
2691 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2692 /*
2693 * according to old code it should be avoided to requeue all
2694 * 128 buffers in order to benefit from PCI avoidance.
2695 * this function keeps at least one buffer (the buffer at
2696 * 'index') un-requeued -> this buffer is the first buffer that
2697 * will be requeued the next time
2698 */
09d2d38a
FP		 2699 if (card->options.performance_stats) {
2700 card->perf_stats.inbound_do_qdio_cnt++;
2701 card->perf_stats.inbound_do_qdio_start_time =
2702 qeth_get_micros();
2703 }
1da177e4
LT		 2704 rc = do_QDIO(CARD_DDEV(card),
2705 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2706 0, queue->next_buf_to_init, count, NULL);
09d2d38a
FP		 2707 if (card->options.performance_stats)
2708 card->perf_stats.inbound_do_qdio_time +=
2709 qeth_get_micros() -
2710 card->perf_stats.inbound_do_qdio_start_time;
1da177e4
LT		 2711 if (rc){
2712 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2713 "return %i (device %s).\n",
2714 rc, CARD_DDEV_ID(card));
2715 QETH_DBF_TEXT(trace,2,"qinberr");
2716 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2717 }
2718 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2719 QDIO_MAX_BUFFERS_PER_Q;
2720 }
2721}
2722
2723static inline void
2724qeth_put_buffer_pool_entry(struct qeth_card *card,
2725 struct qeth_buffer_pool_entry *entry)
2726{
2727 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2728 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2729}
2730
2731static void
2732qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2733 unsigned int qdio_err, unsigned int siga_err,
2734 unsigned int queue, int first_element, int count,
2735 unsigned long card_ptr)
2736{
2737 struct net_device *net_dev;
2738 struct qeth_card *card;
2739 struct qeth_qdio_buffer *buffer;
2740 int index;
2741 int i;
2742
2743 QETH_DBF_TEXT(trace, 6, "qdinput");
2744 card = (struct qeth_card *) card_ptr;
2745 net_dev = card->dev;
09d2d38a
FP		 2746 if (card->options.performance_stats) {
2747 card->perf_stats.inbound_cnt++;
2748 card->perf_stats.inbound_start_time = qeth_get_micros();
2749 }
1da177e4
LT		 2750 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2751 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2752 QETH_DBF_TEXT(trace, 1,"qdinchk");
2753 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2754 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2755 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2756 qeth_schedule_recovery(card);
2757 return;
2758 }
2759 }
2760 for (i = first_element; i < (first_element + count); ++i) {
2761 index = i % QDIO_MAX_BUFFERS_PER_Q;
2762 buffer = &card->qdio.in_q->bufs[index];
6c6b3e7c 2763 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
e82b0f2c 2764 qeth_check_qdio_errors(buffer->buffer,
6c6b3e7c 2765 qdio_err, siga_err,"qinerr")))
1da177e4
LT		 2766 qeth_process_inbound_buffer(card, buffer, index);
2767 /* clear buffer and give back to hardware */
2768 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2769 qeth_queue_input_buffer(card, index);
2770 }
09d2d38a
FP		 2771 if (card->options.performance_stats)
2772 card->perf_stats.inbound_time += qeth_get_micros() -
2773 card->perf_stats.inbound_start_time;
1da177e4
LT		 2774}
2775
2776static inline int
2777qeth_handle_send_error(struct qeth_card *card,
2778 struct qeth_qdio_out_buffer *buffer,
6c6b3e7c 2779 unsigned int qdio_err, unsigned int siga_err)
1da177e4
LT		 2780{
2781 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2782 int cc = siga_err & 3;
2783
2784 QETH_DBF_TEXT(trace, 6, "hdsnderr");
6c6b3e7c 2785 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
1da177e4
LT		 2786 switch (cc) {
2787 case 0:
2788 if (qdio_err){
2789 QETH_DBF_TEXT(trace, 1,"lnkfail");
2790 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2791 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2792 (u16)qdio_err, (u8)sbalf15);
2793 return QETH_SEND_ERROR_LINK_FAILURE;
2794 }
2795 return QETH_SEND_ERROR_NONE;
2796 case 2:
2797 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2798 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2799 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2800 return QETH_SEND_ERROR_KICK_IT;
2801 }
2802 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2803 return QETH_SEND_ERROR_RETRY;
2804 return QETH_SEND_ERROR_LINK_FAILURE;
2805 /* look at qdio_error and sbalf 15 */
2806 case 1:
2807 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2808 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2809 return QETH_SEND_ERROR_LINK_FAILURE;
2810 case 3:
1380fee2 2811 default:
1da177e4
LT		 2812 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2813 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2814 return QETH_SEND_ERROR_KICK_IT;
2815 }
1da177e4
LT		 2816}
2817
2818void
2819qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2820 int index, int count)
2821{
2822 struct qeth_qdio_out_buffer *buf;
2823 int rc;
2824 int i;
2825
2826 QETH_DBF_TEXT(trace, 6, "flushbuf");
2827
2828 for (i = index; i < index + count; ++i) {
2829 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2830 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2831 SBAL_FLAGS_LAST_ENTRY;
2832
2833 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2834 continue;
2835
2836 if (!queue->do_pack){
2837 if ((atomic_read(&queue->used_buffers) >=
2838 (QETH_HIGH_WATERMARK_PACK -
2839 QETH_WATERMARK_PACK_FUZZ)) &&
2840 !atomic_read(&queue->set_pci_flags_count)){
2841 /* it's likely that we'll go to packing
2842 * mode soon */
2843 atomic_inc(&queue->set_pci_flags_count);
2844 buf->buffer->element[0].flags |= 0x40;
2845 }
2846 } else {
2847 if (!atomic_read(&queue->set_pci_flags_count)){
2848 /*
2849 * there's no outstanding PCI any more, so we
2850 * have to request a PCI to be sure the the PCI
2851 * will wake at some time in the future then we
2852 * can flush packed buffers that might still be
2853 * hanging around, which can happen if no
2854 * further send was requested by the stack
2855 */
2856 atomic_inc(&queue->set_pci_flags_count);
2857 buf->buffer->element[0].flags |= 0x40;
2858 }
2859 }
2860 }
2861
2862 queue->card->dev->trans_start = jiffies;
09d2d38a
FP		 2863 if (queue->card->options.performance_stats) {
2864 queue->card->perf_stats.outbound_do_qdio_cnt++;
2865 queue->card->perf_stats.outbound_do_qdio_start_time =
2866 qeth_get_micros();
2867 }
1da177e4
LT		 2868 if (under_int)
2869 rc = do_QDIO(CARD_DDEV(queue->card),
2870 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2871 queue->queue_no, index, count, NULL);
2872 else
2873 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2874 queue->queue_no, index, count, NULL);
09d2d38a
FP		 2875 if (queue->card->options.performance_stats)
2876 queue->card->perf_stats.outbound_do_qdio_time +=
2877 qeth_get_micros() -
2878 queue->card->perf_stats.outbound_do_qdio_start_time;
1da177e4 2879 if (rc){
1da177e4
LT		 2880 QETH_DBF_TEXT(trace, 2, "flushbuf");
2881 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
f3d242e8 2882 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
1da177e4
LT		 2883 queue->card->stats.tx_errors += count;
2884 /* this must not happen under normal circumstances. if it
2885 * happens something is really wrong -> recover */
2886 qeth_schedule_recovery(queue->card);
2887 return;
2888 }
2889 atomic_add(count, &queue->used_buffers);
09d2d38a
FP		 2890 if (queue->card->options.performance_stats)
2891 queue->card->perf_stats.bufs_sent += count;
1da177e4
LT		 2892}
2893
2894/*
2895 * Switched to packing state if the number of used buffers on a queue
2896 * reaches a certain limit.
2897 */
2898static inline void
2899qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2900{
2901 if (!queue->do_pack) {
2902 if (atomic_read(&queue->used_buffers)
2903 >= QETH_HIGH_WATERMARK_PACK){
2904 /* switch non-PACKING -> PACKING */
2905 QETH_DBF_TEXT(trace, 6, "np->pack");
09d2d38a
FP		 2906 if (queue->card->options.performance_stats)
2907 queue->card->perf_stats.sc_dp_p++;
1da177e4
LT		 2908 queue->do_pack = 1;
2909 }
2910 }
2911}
2912
2913/*
2914 * Switches from packing to non-packing mode. If there is a packing
2915 * buffer on the queue this buffer will be prepared to be flushed.
2916 * In that case 1 is returned to inform the caller. If no buffer
2917 * has to be flushed, zero is returned.
2918 */
2919static inline int
2920qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2921{
2922 struct qeth_qdio_out_buffer *buffer;
2923 int flush_count = 0;
2924
2925 if (queue->do_pack) {
2926 if (atomic_read(&queue->used_buffers)
2927 <= QETH_LOW_WATERMARK_PACK) {
2928 /* switch PACKING -> non-PACKING */
2929 QETH_DBF_TEXT(trace, 6, "pack->np");
09d2d38a
FP		 2930 if (queue->card->options.performance_stats)
2931 queue->card->perf_stats.sc_p_dp++;
1da177e4
LT		 2932 queue->do_pack = 0;
2933 /* flush packing buffers */
2934 buffer = &queue->bufs[queue->next_buf_to_fill];
2935 if ((atomic_read(&buffer->state) ==
2936 QETH_QDIO_BUF_EMPTY) &&
2937 (buffer->next_element_to_fill > 0)) {
2938 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2939 flush_count++;
2940 queue->next_buf_to_fill =
2941 (queue->next_buf_to_fill + 1) %
2942 QDIO_MAX_BUFFERS_PER_Q;
09d2d38a 2943 }
1da177e4
LT		 2944 }
2945 }
2946 return flush_count;
2947}
2948
2949/*
2950 * Called to flush a packing buffer if no more pci flags are on the queue.
2951 * Checks if there is a packing buffer and prepares it to be flushed.
2952 * In that case returns 1, otherwise zero.
2953 */
2954static inline int
2955qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2956{
2957 struct qeth_qdio_out_buffer *buffer;
2958
2959 buffer = &queue->bufs[queue->next_buf_to_fill];
2960 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2961 (buffer->next_element_to_fill > 0)){
2962 /* it's a packing buffer */
2963 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2964 queue->next_buf_to_fill =
2965 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2966 return 1;
2967 }
2968 return 0;
2969}
2970
2971static inline void
2972qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2973{
2974 int index;
2975 int flush_cnt = 0;
2976 int q_was_packing = 0;
2977
2978 /*
2979 * check if weed have to switch to non-packing mode or if
2980 * we have to get a pci flag out on the queue
2981 */
2982 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2983 !atomic_read(&queue->set_pci_flags_count)){
9163bb2e 2984 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
1da177e4
LT		 2985 QETH_OUT_Q_UNLOCKED) {
2986 /*
2987 * If we get in here, there was no action in
2988 * do_send_packet. So, we check if there is a
2989 * packing buffer to be flushed here.
2990 */
2991 netif_stop_queue(queue->card->dev);
2992 index = queue->next_buf_to_fill;
2993 q_was_packing = queue->do_pack;
2994 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2995 if (!flush_cnt &&
2996 !atomic_read(&queue->set_pci_flags_count))
2997 flush_cnt +=
2998 qeth_flush_buffers_on_no_pci(queue);
09d2d38a
FP		 2999 if (queue->card->options.performance_stats &&
3000 q_was_packing)
1da177e4
LT		 3001 queue->card->perf_stats.bufs_sent_pack +=
3002 flush_cnt;
1da177e4
LT		 3003 if (flush_cnt)
3004 qeth_flush_buffers(queue, 1, index, flush_cnt);
3005 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3006 }
3007 }
3008}
3009
3010static void
3011qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3012 unsigned int qdio_error, unsigned int siga_error,
3013 unsigned int __queue, int first_element, int count,
3014 unsigned long card_ptr)
3015{
3016 struct qeth_card *card = (struct qeth_card *) card_ptr;
3017 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3018 struct qeth_qdio_out_buffer *buffer;
3019 int i;
3020
3021 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3022 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3023 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
f3d242e8
FP		 3024 QETH_DBF_TEXT(trace, 2, "achkcond");
3025 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
1da177e4
LT		 3026 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3027 netif_stop_queue(card->dev);
3028 qeth_schedule_recovery(card);
3029 return;
3030 }
3031 }
09d2d38a
FP		 3032 if (card->options.performance_stats) {
3033 card->perf_stats.outbound_handler_cnt++;
3034 card->perf_stats.outbound_handler_start_time =
3035 qeth_get_micros();
3036 }
1da177e4
LT		 3037 for(i = first_element; i < (first_element + count); ++i){
3038 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3039 /*we only handle the KICK_IT error by doing a recovery */
6c6b3e7c
FP		 3040 if (qeth_handle_send_error(card, buffer,
3041 qdio_error, siga_error)
1da177e4
LT		 3042 == QETH_SEND_ERROR_KICK_IT){
3043 netif_stop_queue(card->dev);
3044 qeth_schedule_recovery(card);
3045 return;
3046 }
3047 qeth_clear_output_buffer(queue, buffer);
3048 }
3049 atomic_sub(count, &queue->used_buffers);
3050 /* check if we need to do something on this outbound queue */
3051 if (card->info.type != QETH_CARD_TYPE_IQD)
3052 qeth_check_outbound_queue(queue);
3053
3054 netif_wake_queue(queue->card->dev);
09d2d38a
FP		 3055 if (card->options.performance_stats)
3056 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3057 card->perf_stats.outbound_handler_start_time;
1da177e4
LT		 3058}
3059
3060static void
3061qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3062{
3063
3064 param_field[0] = _ascebc['P'];
3065 param_field[1] = _ascebc['C'];
3066 param_field[2] = _ascebc['I'];
3067 param_field[3] = _ascebc['T'];
3068 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3069 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3070 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3071}
3072
3073static void
3074qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3075{
3076 param_field[16] = _ascebc['B'];
3077 param_field[17] = _ascebc['L'];
3078 param_field[18] = _ascebc['K'];
3079 param_field[19] = _ascebc['T'];
3080 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3081 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3082 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3083}
3084
3085static void
3086qeth_initialize_working_pool_list(struct qeth_card *card)
3087{
3088 struct qeth_buffer_pool_entry *entry;
3089
3090 QETH_DBF_TEXT(trace,5,"inwrklst");
3091
3092 list_for_each_entry(entry,
3093 &card->qdio.init_pool.entry_list, init_list) {
3094 qeth_put_buffer_pool_entry(card,entry);
3095 }
3096}
3097
3098static void
3099qeth_clear_working_pool_list(struct qeth_card *card)
3100{
3101 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3102
3103 QETH_DBF_TEXT(trace,5,"clwrklst");
3104 list_for_each_entry_safe(pool_entry, tmp,
3105 &card->qdio.in_buf_pool.entry_list, list){
3106 list_del(&pool_entry->list);
3107 }
3108}
3109
3110static void
3111qeth_free_buffer_pool(struct qeth_card *card)
3112{
3113 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3114 int i=0;
3115 QETH_DBF_TEXT(trace,5,"freepool");
3116 list_for_each_entry_safe(pool_entry, tmp,
3117 &card->qdio.init_pool.entry_list, init_list){
3118 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3119 free_page((unsigned long)pool_entry->elements[i]);
3120 list_del(&pool_entry->init_list);
3121 kfree(pool_entry);
3122 }
3123}
3124
3125static int
3126qeth_alloc_buffer_pool(struct qeth_card *card)
3127{
3128 struct qeth_buffer_pool_entry *pool_entry;
3129 void *ptr;
3130 int i, j;
3131
3132 QETH_DBF_TEXT(trace,5,"alocpool");
3133 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3134 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3135 if (!pool_entry){
3136 qeth_free_buffer_pool(card);
3137 return -ENOMEM;
3138 }
3139 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
9123e0d7 3140 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3141 if (!ptr) {
3142 while (j > 0)
3143 free_page((unsigned long)
3144 pool_entry->elements[--j]);
3145 kfree(pool_entry);
3146 qeth_free_buffer_pool(card);
3147 return -ENOMEM;
3148 }
3149 pool_entry->elements[j] = ptr;
3150 }
3151 list_add(&pool_entry->init_list,
3152 &card->qdio.init_pool.entry_list);
3153 }
3154 return 0;
3155}
3156
3157int
3158qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3159{
3160 QETH_DBF_TEXT(trace, 2, "realcbp");
3161
3162 if ((card->state != CARD_STATE_DOWN) &&
3163 (card->state != CARD_STATE_RECOVER))
3164 return -EPERM;
3165
3166 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3167 qeth_clear_working_pool_list(card);
3168 qeth_free_buffer_pool(card);
3169 card->qdio.in_buf_pool.buf_count = bufcnt;
3170 card->qdio.init_pool.buf_count = bufcnt;
3171 return qeth_alloc_buffer_pool(card);
3172}
3173
3174static int
3175qeth_alloc_qdio_buffers(struct qeth_card *card)
3176{
3177 int i, j;
3178
3179 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3180
f956b690
FP		 3181 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3182 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
1da177e4
LT		 3183 return 0;
3184
e82b0f2c 3185 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
9123e0d7 3186 GFP_KERNEL|GFP_DMA);
1da177e4 3187 if (!card->qdio.in_q)
f956b690 3188 goto out_nomem;
1da177e4
LT		 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 */
f956b690
FP		 3197 if (qeth_alloc_buffer_pool(card))
3198 goto out_freeinq;
1da177e4
LT		 3199 /* outbound */
3200 card->qdio.out_qs =
3201 kmalloc(card->qdio.no_out_queues *
3202 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
f956b690
FP		 3203 if (!card->qdio.out_qs)
3204 goto out_freepool;
3205 for (i = 0; i < card->qdio.no_out_queues; ++i) {
1da177e4 3206 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
9123e0d7 3207 GFP_KERNEL|GFP_DMA);
f956b690
FP		 3208 if (!card->qdio.out_qs[i])
3209 goto out_freeoutq;
1da177e4
LT		 3210 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3211 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3212 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3213 card->qdio.out_qs[i]->queue_no = i;
3214 /* give outbound qeth_qdio_buffers their qdio_buffers */
3215 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3216 card->qdio.out_qs[i]->bufs[j].buffer =
3217 &card->qdio.out_qs[i]->qdio_bufs[j];
3218 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3219 skb_list);
91ebe2a9
HC		 3220 lockdep_set_class(
3221 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3222 &qdio_out_skb_queue_key);
1da177e4
LT		 3223 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3224 }
3225 }
1da177e4 3226 return 0;
f956b690
FP		 3227
3228out_freeoutq:
3229 while (i > 0)
3230 kfree(card->qdio.out_qs[--i]);
3231 kfree(card->qdio.out_qs);
3232out_freepool:
3233 qeth_free_buffer_pool(card);
3234out_freeinq:
3235 kfree(card->qdio.in_q);
3236out_nomem:
3237 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3238 return -ENOMEM;
1da177e4
LT		 3239}
3240
3241static void
3242qeth_free_qdio_buffers(struct qeth_card *card)
3243{
3244 int i, j;
3245
3246 QETH_DBF_TEXT(trace, 2, "freeqdbf");
9163bb2e 3247 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
f956b690 3248 QETH_QDIO_UNINITIALIZED)
1da177e4
LT		 3249 return;
3250 kfree(card->qdio.in_q);
3251 /* inbound buffer pool */
3252 qeth_free_buffer_pool(card);
3253 /* free outbound qdio_qs */
3254 for (i = 0; i < card->qdio.no_out_queues; ++i){
3255 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3256 qeth_clear_output_buffer(card->qdio.out_qs[i],
3257 &card->qdio.out_qs[i]->bufs[j]);
3258 kfree(card->qdio.out_qs[i]);
3259 }
3260 kfree(card->qdio.out_qs);
1da177e4
LT		 3261}
3262
3263static void
3264qeth_clear_qdio_buffers(struct qeth_card *card)
3265{
3266 int i, j;
3267
3268 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3269 /* clear outbound buffers to free skbs */
3270 for (i = 0; i < card->qdio.no_out_queues; ++i)
3271 if (card->qdio.out_qs[i]){
3272 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3273 qeth_clear_output_buffer(card->qdio.out_qs[i],
3274 &card->qdio.out_qs[i]->bufs[j]);
3275 }
3276}
3277
3278static void
3279qeth_init_qdio_info(struct qeth_card *card)
3280{
3281 QETH_DBF_TEXT(setup, 4, "intqdinf");
f956b690 3282 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1da177e4
LT		 3283 /* inbound */
3284 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3285 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3286 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3287 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3288 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1da177e4
LT		 3289}
3290
3291static int
3292qeth_init_qdio_queues(struct qeth_card *card)
3293{
3294 int i, j;
3295 int rc;
3296
3297 QETH_DBF_TEXT(setup, 2, "initqdqs");
3298
3299 /* inbound queue */
3300 memset(card->qdio.in_q->qdio_bufs, 0,
3301 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3302 qeth_initialize_working_pool_list(card);
3303 /*give only as many buffers to hardware as we have buffer pool entries*/
3304 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3305 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3306 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3307 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3308 card->qdio.in_buf_pool.buf_count - 1, NULL);
3309 if (rc) {
3310 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3311 return rc;
3312 }
3313 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3314 if (rc) {
3315 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3316 return rc;
3317 }
3318 /* outbound queue */
3319 for (i = 0; i < card->qdio.no_out_queues; ++i){
3320 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3321 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3322 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3323 qeth_clear_output_buffer(card->qdio.out_qs[i],
3324 &card->qdio.out_qs[i]->bufs[j]);
3325 }
3326 card->qdio.out_qs[i]->card = card;
3327 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3328 card->qdio.out_qs[i]->do_pack = 0;
3329 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3330 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3331 atomic_set(&card->qdio.out_qs[i]->state,
3332 QETH_OUT_Q_UNLOCKED);
3333 }
3334 return 0;
3335}
3336
3337static int
3338qeth_qdio_establish(struct qeth_card *card)
3339{
3340 struct qdio_initialize init_data;
3341 char *qib_param_field;
3342 struct qdio_buffer **in_sbal_ptrs;
3343 struct qdio_buffer **out_sbal_ptrs;
3344 int i, j, k;
f956b690 3345 int rc = 0;
1da177e4
LT		 3346
3347 QETH_DBF_TEXT(setup, 2, "qdioest");
3348
88abaab4 3349 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
1da177e4
LT		 3350 GFP_KERNEL);
3351 if (!qib_param_field)
3352 return -ENOMEM;
3353
1da177e4
LT		 3354 qeth_create_qib_param_field(card, qib_param_field);
3355 qeth_create_qib_param_field_blkt(card, qib_param_field);
3356
3357 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3358 GFP_KERNEL);
3359 if (!in_sbal_ptrs) {
3360 kfree(qib_param_field);
3361 return -ENOMEM;
3362 }
3363 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3364 in_sbal_ptrs[i] = (struct qdio_buffer *)
3365 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3366
3367 out_sbal_ptrs =
3368 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3369 sizeof(void *), GFP_KERNEL);
3370 if (!out_sbal_ptrs) {
3371 kfree(in_sbal_ptrs);
3372 kfree(qib_param_field);
3373 return -ENOMEM;
3374 }
3375 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3376 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3377 out_sbal_ptrs[k] = (struct qdio_buffer *)
3378 virt_to_phys(card->qdio.out_qs[i]->
3379 bufs[j].buffer);
3380 }
3381
3382 memset(&init_data, 0, sizeof(struct qdio_initialize));
3383 init_data.cdev = CARD_DDEV(card);
3384 init_data.q_format = qeth_get_qdio_q_format(card);
3385 init_data.qib_param_field_format = 0;
3386 init_data.qib_param_field = qib_param_field;
3387 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3388 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3389 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3390 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3391 init_data.no_input_qs = 1;
3392 init_data.no_output_qs = card->qdio.no_out_queues;
3393 init_data.input_handler = (qdio_handler_t *)
3394 qeth_qdio_input_handler;
3395 init_data.output_handler = (qdio_handler_t *)
3396 qeth_qdio_output_handler;
3397 init_data.int_parm = (unsigned long) card;
3398 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3399 QDIO_OUTBOUND_0COPY_SBALS |
3400 QDIO_USE_OUTBOUND_PCIS;
3401 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3402 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3403
f956b690
FP		 3404 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3405 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3406 if ((rc = qdio_initialize(&init_data)))
3407 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1da177e4
LT		 3408
3409 kfree(out_sbal_ptrs);
3410 kfree(in_sbal_ptrs);
3411 kfree(qib_param_field);
3412 return rc;
3413}
3414
3415static int
3416qeth_qdio_activate(struct qeth_card *card)
3417{
3418 QETH_DBF_TEXT(setup,3,"qdioact");
3419 return qdio_activate(CARD_DDEV(card), 0);
3420}
3421
3422static int
3423qeth_clear_channel(struct qeth_channel *channel)
3424{
3425 unsigned long flags;
3426 struct qeth_card *card;
3427 int rc;
3428
3429 QETH_DBF_TEXT(trace,3,"clearch");
3430 card = CARD_FROM_CDEV(channel->ccwdev);
3431 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3432 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3433 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3434
3435 if (rc)
3436 return rc;
3437 rc = wait_event_interruptible_timeout(card->wait_q,
3438 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3439 if (rc == -ERESTARTSYS)
3440 return rc;
3441 if (channel->state != CH_STATE_STOPPED)
3442 return -ETIME;
3443 channel->state = CH_STATE_DOWN;
3444 return 0;
3445}
3446
3447static int
3448qeth_halt_channel(struct qeth_channel *channel)
3449{
3450 unsigned long flags;
3451 struct qeth_card *card;
3452 int rc;
3453
3454 QETH_DBF_TEXT(trace,3,"haltch");
3455 card = CARD_FROM_CDEV(channel->ccwdev);
3456 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3457 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3458 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3459
3460 if (rc)
3461 return rc;
3462 rc = wait_event_interruptible_timeout(card->wait_q,
3463 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3464 if (rc == -ERESTARTSYS)
3465 return rc;
3466 if (channel->state != CH_STATE_HALTED)
3467 return -ETIME;
3468 return 0;
3469}
3470
3471static int
3472qeth_halt_channels(struct qeth_card *card)
3473{
f3d242e8 3474 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3475
3476 QETH_DBF_TEXT(trace,3,"haltchs");
f3d242e8
FP		 3477 rc1 = qeth_halt_channel(&card->read);
3478 rc2 = qeth_halt_channel(&card->write);
3479 rc3 = qeth_halt_channel(&card->data);
3480 if (rc1)
3481 return rc1;
e82b0f2c 3482 if (rc2)
f3d242e8
FP		 3483 return rc2;
3484 return rc3;
1da177e4
LT		 3485}
3486static int
3487qeth_clear_channels(struct qeth_card *card)
3488{
f3d242e8 3489 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3490
3491 QETH_DBF_TEXT(trace,3,"clearchs");
f3d242e8
FP		 3492 rc1 = qeth_clear_channel(&card->read);
3493 rc2 = qeth_clear_channel(&card->write);
3494 rc3 = qeth_clear_channel(&card->data);
3495 if (rc1)
3496 return rc1;
e82b0f2c 3497 if (rc2)
f3d242e8
FP		 3498 return rc2;
3499 return rc3;
1da177e4
LT		 3500}
3501
3502static int
3503qeth_clear_halt_card(struct qeth_card *card, int halt)
3504{
3505 int rc = 0;
3506
3507 QETH_DBF_TEXT(trace,3,"clhacrd");
3508 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3509
3510 if (halt)
3511 rc = qeth_halt_channels(card);
3512 if (rc)
3513 return rc;
3514 return qeth_clear_channels(card);
3515}
3516
3517static int
3518qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3519{
3520 int rc = 0;
3521
3522 QETH_DBF_TEXT(trace,3,"qdioclr");
f956b690
FP		 3523 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3524 QETH_QDIO_CLEANING)) {
3525 case QETH_QDIO_ESTABLISHED:
1da177e4 3526 if ((rc = qdio_cleanup(CARD_DDEV(card),
f956b690
FP		 3527 (card->info.type == QETH_CARD_TYPE_IQD) ?
3528 QDIO_FLAG_CLEANUP_USING_HALT :
3529 QDIO_FLAG_CLEANUP_USING_CLEAR)))
1da177e4 3530 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
f956b690
FP		 3531 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3532 break;
3533 case QETH_QDIO_CLEANING:
3534 return rc;
3535 default:
3536 break;
1da177e4
LT		 3537 }
3538 if ((rc = qeth_clear_halt_card(card, use_halt)))
3539 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3540 card->state = CARD_STATE_DOWN;
3541 return rc;
3542}
3543
3544static int
3545qeth_dm_act(struct qeth_card *card)
3546{
3547 int rc;
3548 struct qeth_cmd_buffer *iob;
3549
3550 QETH_DBF_TEXT(setup,2,"dmact");
3551
3552 iob = qeth_wait_for_buffer(&card->write);
3553 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3554
3555 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3556 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3557 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3558 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3559 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3560 return rc;
3561}
3562
3563static int
3564qeth_mpc_initialize(struct qeth_card *card)
3565{
3566 int rc;
3567
3568 QETH_DBF_TEXT(setup,2,"mpcinit");
3569
3570 if ((rc = qeth_issue_next_read(card))){
3571 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3572 return rc;
3573 }
3574 if ((rc = qeth_cm_enable(card))){
3575 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
f3d242e8 3576 goto out_qdio;
1da177e4
LT		 3577 }
3578 if ((rc = qeth_cm_setup(card))){
3579 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
f3d242e8 3580 goto out_qdio;
1da177e4
LT		 3581 }
3582 if ((rc = qeth_ulp_enable(card))){
3583 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
f3d242e8 3584 goto out_qdio;
1da177e4
LT		 3585 }
3586 if ((rc = qeth_ulp_setup(card))){
3587 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3588 goto out_qdio;
1da177e4
LT		 3589 }
3590 if ((rc = qeth_alloc_qdio_buffers(card))){
3591 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3592 goto out_qdio;
1da177e4
LT		 3593 }
3594 if ((rc = qeth_qdio_establish(card))){
3595 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3596 qeth_free_qdio_buffers(card);
3597 goto out_qdio;
3598 }
3599 if ((rc = qeth_qdio_activate(card))){
3600 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3601 goto out_qdio;
3602 }
3603 if ((rc = qeth_dm_act(card))){
3604 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3605 goto out_qdio;
3606 }
3607
3608 return 0;
3609out_qdio:
500f83ab 3610 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 3611 return rc;
3612}
3613
3614static struct net_device *
3615qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3616{
3617 struct net_device *dev = NULL;
3618
3619 switch (type) {
3620 case QETH_CARD_TYPE_OSAE:
3621 switch (linktype) {
3622 case QETH_LINK_TYPE_LANE_TR:
3623 case QETH_LINK_TYPE_HSTR:
3624#ifdef CONFIG_TR
3625 dev = alloc_trdev(0);
3626#endif /* CONFIG_TR */
3627 break;
3628 default:
3629 dev = alloc_etherdev(0);
3630 }
3631 break;
3632 case QETH_CARD_TYPE_IQD:
3633 dev = alloc_netdev(0, "hsi%d", ether_setup);
3634 break;
500f83ab
UB		 3635 case QETH_CARD_TYPE_OSN:
3636 dev = alloc_netdev(0, "osn%d", ether_setup);
3637 break;
1da177e4
LT		 3638 default:
3639 dev = alloc_etherdev(0);
3640 }
3641 return dev;
3642}
3643
3644/*hard_header fake function; used in case fake_ll is set */
3645static int
3646qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3647 unsigned short type, void *daddr, void *saddr,
3648 unsigned len)
3649{
e23dd9cd
FP		 3650 if(dev->type == ARPHRD_IEEE802_TR){
3651 struct trh_hdr *hdr;
3652 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3653 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3654 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3655 return QETH_FAKE_LL_LEN_TR;
3656
3657 } else {
3658 struct ethhdr *hdr;
3659 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3660 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3661 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3662 if (type != ETH_P_802_3)
3663 hdr->h_proto = htons(type);
3664 else
3665 hdr->h_proto = htons(len);
3666 return QETH_FAKE_LL_LEN_ETH;
1da177e4 3667
e23dd9cd 3668 }
1da177e4
LT		 3669}
3670
3671static inline int
3672qeth_send_packet(struct qeth_card *, struct sk_buff *);
3673
3674static int
3675qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3676{
3677 int rc;
3678 struct qeth_card *card;
3679
3680 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3681 card = (struct qeth_card *)dev->priv;
3682 if (skb==NULL) {
3683 card->stats.tx_dropped++;
3684 card->stats.tx_errors++;
3685 /* return OK; otherwise ksoftirqd goes to 100% */
3686 return NETDEV_TX_OK;
3687 }
3688 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3689 card->stats.tx_dropped++;
3690 card->stats.tx_errors++;
3691 card->stats.tx_carrier_errors++;
3692 dev_kfree_skb_any(skb);
3693 /* return OK; otherwise ksoftirqd goes to 100% */
3694 return NETDEV_TX_OK;
3695 }
09d2d38a
FP		 3696 if (card->options.performance_stats) {
3697 card->perf_stats.outbound_cnt++;
3698 card->perf_stats.outbound_start_time = qeth_get_micros();
3699 }
1da177e4
LT		 3700 netif_stop_queue(dev);
3701 if ((rc = qeth_send_packet(card, skb))) {
3702 if (rc == -EBUSY) {
3703 return NETDEV_TX_BUSY;
3704 } else {
3705 card->stats.tx_errors++;
3706 card->stats.tx_dropped++;
3707 dev_kfree_skb_any(skb);
3708 /*set to OK; otherwise ksoftirqd goes to 100% */
3709 rc = NETDEV_TX_OK;
3710 }
3711 }
3712 netif_wake_queue(dev);
09d2d38a
FP		 3713 if (card->options.performance_stats)
3714 card->perf_stats.outbound_time += qeth_get_micros() -
3715 card->perf_stats.outbound_start_time;
1da177e4
LT		 3716 return rc;
3717}
3718
3719static int
3720qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3721{
3722 int rc = 0;
3723#ifdef CONFIG_QETH_VLAN
3724 struct vlan_group *vg;
3725 int i;
3726
3727 if (!(vg = card->vlangrp))
3728 return rc;
3729
3730 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3731 if (vg->vlan_devices[i] == dev){
3732 rc = QETH_VLAN_CARD;
3733 break;
3734 }
3735 }
6c6b3e7c
FP		 3736 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3737 return 0;
3738
1da177e4
LT		 3739#endif
3740 return rc;
3741}
3742
3743static int
3744qeth_verify_dev(struct net_device *dev)
3745{
3746 struct qeth_card *card;
3747 unsigned long flags;
3748 int rc = 0;
3749
3750 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3751 list_for_each_entry(card, &qeth_card_list.list, list){
3752 if (card->dev == dev){
3753 rc = QETH_REAL_CARD;
3754 break;
3755 }
3756 rc = qeth_verify_vlan_dev(dev, card);
3757 if (rc)
3758 break;
3759 }
3760 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3761
3762 return rc;
3763}
3764
3765static struct qeth_card *
3766qeth_get_card_from_dev(struct net_device *dev)
3767{
3768 struct qeth_card *card = NULL;
3769 int rc;
3770
3771 rc = qeth_verify_dev(dev);
3772 if (rc == QETH_REAL_CARD)
3773 card = (struct qeth_card *)dev->priv;
3774 else if (rc == QETH_VLAN_CARD)
3775 card = (struct qeth_card *)
3776 VLAN_DEV_INFO(dev)->real_dev->priv;
3777
3778 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3779 return card ;
3780}
3781
3782static void
3783qeth_tx_timeout(struct net_device *dev)
3784{
3785 struct qeth_card *card;
3786
3787 card = (struct qeth_card *) dev->priv;
3788 card->stats.tx_errors++;
3789 qeth_schedule_recovery(card);
3790}
3791
3792static int
3793qeth_open(struct net_device *dev)
3794{
3795 struct qeth_card *card;
3796
3797 QETH_DBF_TEXT(trace, 4, "qethopen");
3798
3799 card = (struct qeth_card *) dev->priv;
3800
3801 if (card->state != CARD_STATE_SOFTSETUP)
3802 return -ENODEV;
3803
500f83ab
UB		 3804 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3805 (card->options.layer2) &&
e08d88cc 3806 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
1da177e4
LT		 3807 QETH_DBF_TEXT(trace,4,"nomacadr");
3808 return -EPERM;
3809 }
1da177e4
LT		 3810 card->data.state = CH_STATE_UP;
3811 card->state = CARD_STATE_UP;
ba1aa084
UB		 3812 card->dev->flags |= IFF_UP;
3813 netif_start_queue(dev);
e82b0f2c 3814
4965e97f
FP		 3815 if (!card->lan_online && netif_carrier_ok(dev))
3816 netif_carrier_off(dev);
1da177e4
LT		 3817 return 0;
3818}
3819
3820static int
3821qeth_stop(struct net_device *dev)
3822{
3823 struct qeth_card *card;
3824
3825 QETH_DBF_TEXT(trace, 4, "qethstop");
3826
3827 card = (struct qeth_card *) dev->priv;
3828
b85e1fa1 3829 netif_tx_disable(dev);
1da177e4
LT		 3830 card->dev->flags &= ~IFF_UP;
3831 if (card->state == CARD_STATE_UP)
3832 card->state = CARD_STATE_SOFTSETUP;
3833 return 0;
3834}
3835
3836static inline int
3837qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3838{
3839 int cast_type = RTN_UNSPEC;
3840
500f83ab
UB		 3841 if (card->info.type == QETH_CARD_TYPE_OSN)
3842 return cast_type;
3843
1da177e4
LT		 3844 if (skb->dst && skb->dst->neighbour){
3845 cast_type = skb->dst->neighbour->type;
3846 if ((cast_type == RTN_BROADCAST) ||
3847 (cast_type == RTN_MULTICAST) ||
3848 (cast_type == RTN_ANYCAST))
3849 return cast_type;
3850 else
3851 return RTN_UNSPEC;
3852 }
3853 /* try something else */
3854 if (skb->protocol == ETH_P_IPV6)
3855 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3856 else if (skb->protocol == ETH_P_IP)
3857 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3858 /* ... */
3859 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3860 return RTN_BROADCAST;
3861 else {
3862 u16 hdr_mac;
3863
3864 hdr_mac = *((u16 *)skb->data);
3865 /* tr multicast? */
3866 switch (card->info.link_type) {
3867 case QETH_LINK_TYPE_HSTR:
3868 case QETH_LINK_TYPE_LANE_TR:
3869 if ((hdr_mac == QETH_TR_MAC_NC) ||
3870 (hdr_mac == QETH_TR_MAC_C))
3871 return RTN_MULTICAST;
1380fee2 3872 break;
1da177e4
LT		 3873 /* eth or so multicast? */
3874 default:
3875 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3876 (hdr_mac == QETH_ETH_MAC_V6))
3877 return RTN_MULTICAST;
3878 }
3879 }
3880 return cast_type;
3881}
3882
3883static inline int
3884qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3885 int ipv, int cast_type)
3886{
3887 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3888 return card->qdio.default_out_queue;
3889 switch (card->qdio.no_out_queues) {
3890 case 4:
3891 if (cast_type && card->info.is_multicast_different)
3892 return card->info.is_multicast_different &
3893 (card->qdio.no_out_queues - 1);
3894 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3895 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3896 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3897 return 3;
3898 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3899 return 2;
3900 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3901 return 1;
3902 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3903 return 0;
3904 }
3905 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3906 return 3 - (skb->nh.iph->tos >> 6);
3907 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3908 /* TODO: IPv6!!! */
3909 }
3910 return card->qdio.default_out_queue;
3911 case 1: /* fallthrough for single-out-queue 1920-device */
3912 default:
3913 return card->qdio.default_out_queue;
3914 }
3915}
3916
3917static inline int
3918qeth_get_ip_version(struct sk_buff *skb)
3919{
3920 switch (skb->protocol) {
3921 case ETH_P_IPV6:
3922 return 6;
3923 case ETH_P_IP:
3924 return 4;
3925 default:
3926 return 0;
3927 }
3928}
3929
f7b65d70
FP		 3930static inline struct qeth_hdr *
3931__qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
1da177e4 3932{
1da177e4
LT		 3933#ifdef CONFIG_QETH_VLAN
3934 u16 *tag;
f7b65d70 3935 if (card->vlangrp && vlan_tx_tag_present(skb) &&
1da177e4
LT		 3936 ((ipv == 6) || card->options.layer2) ) {
3937 /*
3938 * Move the mac addresses (6 bytes src, 6 bytes dest)
3939 * to the beginning of the new header. We are using three
3940 * memcpys instead of one memmove to save cycles.
3941 */
f7b65d70
FP		 3942 skb_push(skb, VLAN_HLEN);
3943 memcpy(skb->data, skb->data + 4, 4);
3944 memcpy(skb->data + 4, skb->data + 8, 4);
3945 memcpy(skb->data + 8, skb->data + 12, 4);
3946 tag = (u16 *)(skb->data + 12);
1da177e4
LT		 3947 /*
3948 * first two bytes = ETH_P_8021Q (0x8100)
3949 * second two bytes = VLANID
3950 */
3951 *tag = __constant_htons(ETH_P_8021Q);
f7b65d70 3952 *(tag + 1) = htons(vlan_tx_tag_get(skb));
1da177e4
LT		 3953 }
3954#endif
f7b65d70
FP		 3955 return ((struct qeth_hdr *)
3956 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3957}
3958
3959static inline void
3960__qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3961{
3962 if (orig_skb != new_skb)
3963 dev_kfree_skb_any(new_skb);
3964}
3965
3966static inline struct sk_buff *
3967qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3968 struct qeth_hdr **hdr, int ipv)
3969{
3970 struct sk_buff *new_skb;
3971
3972 QETH_DBF_TEXT(trace, 6, "prepskb");
3973
3974 new_skb = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3975 if (new_skb == NULL)
3976 return NULL;
3977 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3978 if (*hdr == NULL) {
3979 __qeth_free_new_skb(skb, new_skb);
3980 return NULL;
3981 }
3982 return new_skb;
1da177e4
LT		 3983}
3984
3985static inline u8
3986qeth_get_qeth_hdr_flags4(int cast_type)
3987{
3988 if (cast_type == RTN_MULTICAST)
3989 return QETH_CAST_MULTICAST;
3990 if (cast_type == RTN_BROADCAST)
3991 return QETH_CAST_BROADCAST;
3992 return QETH_CAST_UNICAST;
3993}
3994
3995static inline u8
3996qeth_get_qeth_hdr_flags6(int cast_type)
3997{
3998 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3999 if (cast_type == RTN_MULTICAST)
4000 return ct | QETH_CAST_MULTICAST;
4001 if (cast_type == RTN_ANYCAST)
4002 return ct | QETH_CAST_ANYCAST;
4003 if (cast_type == RTN_BROADCAST)
4004 return ct | QETH_CAST_BROADCAST;
4005 return ct | QETH_CAST_UNICAST;
4006}
4007
4008static inline void
4009qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4010 struct sk_buff *skb)
4011{
4012 __u16 hdr_mac;
4013
4014 if (!memcmp(skb->data+QETH_HEADER_SIZE,
4015 skb->dev->broadcast,6)) { /* broadcast? */
4016 *(__u32 *)hdr->hdr.l2.flags |=
4017 QETH_LAYER2_FLAG_BROADCAST << 8;
4018 return;
4019 }
4020 hdr_mac=*((__u16*)skb->data);
4021 /* tr multicast? */
4022 switch (card->info.link_type) {
4023 case QETH_LINK_TYPE_HSTR:
4024 case QETH_LINK_TYPE_LANE_TR:
4025 if ((hdr_mac == QETH_TR_MAC_NC) ||
4026 (hdr_mac == QETH_TR_MAC_C) )
4027 *(__u32 *)hdr->hdr.l2.flags |=
4028 QETH_LAYER2_FLAG_MULTICAST << 8;
4029 else
4030 *(__u32 *)hdr->hdr.l2.flags |=
4031 QETH_LAYER2_FLAG_UNICAST << 8;
4032 break;
4033 /* eth or so multicast? */
4034 default:
4035 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4036 (hdr_mac==QETH_ETH_MAC_V6) )
4037 *(__u32 *)hdr->hdr.l2.flags |=
4038 QETH_LAYER2_FLAG_MULTICAST << 8;
4039 else
4040 *(__u32 *)hdr->hdr.l2.flags |=
4041 QETH_LAYER2_FLAG_UNICAST << 8;
4042 }
4043}
4044
4045static inline void
4046qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4047 struct sk_buff *skb, int cast_type)
4048{
4049 memset(hdr, 0, sizeof(struct qeth_hdr));
4050 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4051
4052 /* set byte 0 to "0x02" and byte 3 to casting flags */
4053 if (cast_type==RTN_MULTICAST)
4054 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4055 else if (cast_type==RTN_BROADCAST)
4056 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4057 else
4058 qeth_layer2_get_packet_type(card, hdr, skb);
4059
4060 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4061#ifdef CONFIG_QETH_VLAN
4062 /* VSWITCH relies on the VLAN
4063 * information to be present in
4064 * the QDIO header */
4065 if ((card->vlangrp != NULL) &&
4066 vlan_tx_tag_present(skb)) {
4067 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4068 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4069 }
4070#endif
4071}
4072
4073void
4074qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4075 struct sk_buff *skb, int ipv, int cast_type)
4076{
4077 QETH_DBF_TEXT(trace, 6, "fillhdr");
4078
4079 memset(hdr, 0, sizeof(struct qeth_hdr));
4080 if (card->options.layer2) {
4081 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4082 return;
4083 }
4084 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4085 hdr->hdr.l3.ext_flags = 0;
4086#ifdef CONFIG_QETH_VLAN
4087 /*
4088 * before we're going to overwrite this location with next hop ip.
4089 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4090 */
4091 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4092 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4093 QETH_HDR_EXT_VLAN_FRAME :
4094 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4095 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4096 }
4097#endif /* CONFIG_QETH_VLAN */
4098 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4099 if (ipv == 4) { /* IPv4 */
4100 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4101 memset(hdr->hdr.l3.dest_addr, 0, 12);
4102 if ((skb->dst) && (skb->dst->neighbour)) {
4103 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4104 *((u32 *) skb->dst->neighbour->primary_key);
4105 } else {
4106 /* fill in destination address used in ip header */
4107 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4108 }
4109 } else if (ipv == 6) { /* IPv6 or passthru */
4110 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4111 if ((skb->dst) && (skb->dst->neighbour)) {
4112 memcpy(hdr->hdr.l3.dest_addr,
4113 skb->dst->neighbour->primary_key, 16);
4114 } else {
4115 /* fill in destination address used in ip header */
4116 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4117 }
4118 } else { /* passthrough */
e23dd9cd 4119 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
e82b0f2c 4120 !memcmp(skb->data + sizeof(struct qeth_hdr) +
9a455819
FP		 4121 sizeof(__u16), skb->dev->broadcast, 6)) {
4122 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4123 QETH_HDR_PASSTHRU;
e23dd9cd 4124 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
1da177e4 4125 skb->dev->broadcast, 6)) { /* broadcast? */
e23dd9cd
FP		 4126 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4127 QETH_HDR_PASSTHRU;
1da177e4
LT		 4128 } else {
4129 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4130 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4131 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4132 }
4133 }
4134}
4135
1da177e4
LT		 4136static inline void
4137__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
05e08a2a 4138 int is_tso, int *next_element_to_fill)
1da177e4
LT		 4139{
4140 int length = skb->len;
4141 int length_here;
4142 int element;
4143 char *data;
05e08a2a 4144 int first_lap ;
1da177e4
LT		 4145
4146 element = *next_element_to_fill;
4147 data = skb->data;
05e08a2a
FP		 4148 first_lap = (is_tso == 0 ? 1 : 0);
4149
1da177e4
LT		 4150 while (length > 0) {
4151 /* length_here is the remaining amount of data in this page */
4152 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4153 if (length < length_here)
4154 length_here = length;
05e08a2a 4155
1da177e4
LT		 4156 buffer->element[element].addr = data;
4157 buffer->element[element].length = length_here;
4158 length -= length_here;
05e08a2a 4159 if (!length) {
1da177e4
LT		 4160 if (first_lap)
4161 buffer->element[element].flags = 0;
4162 else
4163 buffer->element[element].flags =
4164 SBAL_FLAGS_LAST_FRAG;
4165 } else {
4166 if (first_lap)
4167 buffer->element[element].flags =
4168 SBAL_FLAGS_FIRST_FRAG;
4169 else
4170 buffer->element[element].flags =
4171 SBAL_FLAGS_MIDDLE_FRAG;
4172 }
4173 data += length_here;
4174 element++;
4175 first_lap = 0;
4176 }
4177 *next_element_to_fill = element;
4178}
4179
4180static inline int
4181qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4182 struct qeth_qdio_out_buffer *buf,
4183 struct sk_buff *skb)
4184{
4185 struct qdio_buffer *buffer;
05e08a2a
FP		 4186 struct qeth_hdr_tso *hdr;
4187 int flush_cnt = 0, hdr_len, large_send = 0;
1da177e4
LT		 4188
4189 QETH_DBF_TEXT(trace, 6, "qdfillbf");
05e08a2a 4190
1da177e4
LT		 4191 buffer = buf->buffer;
4192 atomic_inc(&skb->users);
4193 skb_queue_tail(&buf->skb_list, skb);
05e08a2a
FP		 4194
4195 hdr = (struct qeth_hdr_tso *) skb->data;
4196 /*check first on TSO ....*/
4197 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4198 int element = buf->next_element_to_fill;
4199
4200 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4201 /*fill first buffer entry only with header information */
4202 buffer->element[element].addr = skb->data;
4203 buffer->element[element].length = hdr_len;
4204 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4205 buf->next_element_to_fill++;
4206 skb->data += hdr_len;
4207 skb->len -= hdr_len;
4208 large_send = 1;
4209 }
1da177e4 4210 if (skb_shinfo(skb)->nr_frags == 0)
05e08a2a 4211 __qeth_fill_buffer(skb, buffer, large_send,
1da177e4
LT		 4212 (int *)&buf->next_element_to_fill);
4213 else
05e08a2a 4214 __qeth_fill_buffer_frag(skb, buffer, large_send,
1da177e4
LT		 4215 (int *)&buf->next_element_to_fill);
4216
4217 if (!queue->do_pack) {
4218 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4219 /* set state to PRIMED -> will be flushed */
4220 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4221 flush_cnt = 1;
4222 } else {
4223 QETH_DBF_TEXT(trace, 6, "fillbfpa");
09d2d38a
FP		 4224 if (queue->card->options.performance_stats)
4225 queue->card->perf_stats.skbs_sent_pack++;
1da177e4
LT		 4226 if (buf->next_element_to_fill >=
4227 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4228 /*
4229 * packed buffer if full -> set state PRIMED
4230 * -> will be flushed
4231 */
4232 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4233 flush_cnt = 1;
4234 }
4235 }
4236 return flush_cnt;
4237}
4238
4239static inline int
4240qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4241 struct sk_buff *skb, struct qeth_hdr *hdr,
4242 int elements_needed,
4243 struct qeth_eddp_context *ctx)
4244{
4245 struct qeth_qdio_out_buffer *buffer;
4246 int buffers_needed = 0;
4247 int flush_cnt = 0;
4248 int index;
4249
4250 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4251
4252 /* spin until we get the queue ... */
973bd993
MS		 4253 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4254 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4255 /* ... now we've got the queue */
4256 index = queue->next_buf_to_fill;
4257 buffer = &queue->bufs[queue->next_buf_to_fill];
4258 /*
4259 * check if buffer is empty to make sure that we do not 'overtake'
4260 * ourselves and try to fill a buffer that is already primed
4261 */
f7b65d70
FP		 4262 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4263 goto out;
1da177e4
LT		 4264 if (ctx == NULL)
4265 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4266 QDIO_MAX_BUFFERS_PER_Q;
4267 else {
4268 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
f7b65d70
FP		 4269 if (buffers_needed < 0)
4270 goto out;
1da177e4
LT		 4271 queue->next_buf_to_fill =
4272 (queue->next_buf_to_fill + buffers_needed) %
4273 QDIO_MAX_BUFFERS_PER_Q;
4274 }
4275 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4276 if (ctx == NULL) {
4277 qeth_fill_buffer(queue, buffer, skb);
4278 qeth_flush_buffers(queue, 0, index, 1);
4279 } else {
4280 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4281 WARN_ON(buffers_needed != flush_cnt);
4282 qeth_flush_buffers(queue, 0, index, flush_cnt);
4283 }
4284 return 0;
f7b65d70
FP		 4285out:
4286 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4287 return -EBUSY;
1da177e4
LT		 4288}
4289
4290static inline int
4291qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4292 struct sk_buff *skb, struct qeth_hdr *hdr,
4293 int elements_needed, struct qeth_eddp_context *ctx)
4294{
4295 struct qeth_qdio_out_buffer *buffer;
4296 int start_index;
4297 int flush_count = 0;
4298 int do_pack = 0;
4299 int tmp;
4300 int rc = 0;
4301
4302 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4303
4304 /* spin until we get the queue ... */
973bd993
MS		 4305 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4306 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4307 start_index = queue->next_buf_to_fill;
4308 buffer = &queue->bufs[queue->next_buf_to_fill];
4309 /*
4310 * check if buffer is empty to make sure that we do not 'overtake'
4311 * ourselves and try to fill a buffer that is already primed
4312 */
f7b65d70 4313 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
1da177e4
LT		 4314 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4315 return -EBUSY;
4316 }
4317 /* check if we need to switch packing state of this queue */
4318 qeth_switch_to_packing_if_needed(queue);
4319 if (queue->do_pack){
4320 do_pack = 1;
4321 if (ctx == NULL) {
4322 /* does packet fit in current buffer? */
4323 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4324 buffer->next_element_to_fill) < elements_needed){
4325 /* ... no -> set state PRIMED */
4326 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4327 flush_count++;
4328 queue->next_buf_to_fill =
4329 (queue->next_buf_to_fill + 1) %
4330 QDIO_MAX_BUFFERS_PER_Q;
4331 buffer = &queue->bufs[queue->next_buf_to_fill];
4332 /* we did a step forward, so check buffer state
4333 * again */
4334 if (atomic_read(&buffer->state) !=
4335 QETH_QDIO_BUF_EMPTY){
1da177e4
LT		 4336 qeth_flush_buffers(queue, 0, start_index, flush_count);
4337 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4338 return -EBUSY;
4339 }
4340 }
4341 } else {
4342 /* check if we have enough elements (including following
4343 * free buffers) to handle eddp context */
4344 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4345 printk("eddp tx_dropped 1\n");
1da177e4
LT		 4346 rc = -EBUSY;
4347 goto out;
4348 }
4349 }
4350 }
4351 if (ctx == NULL)
4352 tmp = qeth_fill_buffer(queue, buffer, skb);
4353 else {
4354 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4355 if (tmp < 0) {
4356 printk("eddp tx_dropped 2\n");
1da177e4
LT		 4357 rc = - EBUSY;
4358 goto out;
4359 }
4360 }
4361 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4362 QDIO_MAX_BUFFERS_PER_Q;
4363 flush_count += tmp;
4364out:
4365 if (flush_count)
4366 qeth_flush_buffers(queue, 0, start_index, flush_count);
d805d7c6 4367 else if (!atomic_read(&queue->set_pci_flags_count))
9163bb2e 4368 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
1da177e4
LT		 4369 /*
4370 * queue->state will go from LOCKED -> UNLOCKED or from
4371 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4372 * (switch packing state or flush buffer to get another pci flag out).
4373 * In that case we will enter this loop
4374 */
4375 while (atomic_dec_return(&queue->state)){
4376 flush_count = 0;
4377 start_index = queue->next_buf_to_fill;
4378 /* check if we can go back to non-packing state */
4379 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4380 /*
4381 * check if we need to flush a packing buffer to get a pci
4382 * flag out on the queue
4383 */
4384 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4385 flush_count += qeth_flush_buffers_on_no_pci(queue);
4386 if (flush_count)
4387 qeth_flush_buffers(queue, 0, start_index, flush_count);
4388 }
4389 /* at this point the queue is UNLOCKED again */
09d2d38a 4390 if (queue->card->options.performance_stats && do_pack)
1da177e4 4391 queue->card->perf_stats.bufs_sent_pack += flush_count;
1da177e4
LT		 4392
4393 return rc;
4394}
4395
05e08a2a 4396static inline int
e82b0f2c 4397qeth_get_elements_no(struct qeth_card *card, void *hdr,
9cb90de8 4398 struct sk_buff *skb, int elems)
05e08a2a
FP		 4399{
4400 int elements_needed = 0;
4401
f7b65d70 4402 if (skb_shinfo(skb)->nr_frags > 0)
05e08a2a 4403 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
f7b65d70 4404 if (elements_needed == 0)
05e08a2a
FP		 4405 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4406 + skb->len) >> PAGE_SHIFT);
9cb90de8 4407 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
f7b65d70
FP		 4408 PRINT_ERR("Invalid size of IP packet "
4409 "(Number=%d / Length=%d). Discarded.\n",
9cb90de8 4410 (elements_needed+elems), skb->len);
05e08a2a
FP		 4411 return 0;
4412 }
4413 return elements_needed;
4414}
4415
f7b65d70 4416
1da177e4
LT		 4417static inline int
4418qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4419{
4420 int ipv = 0;
4421 int cast_type;
4422 struct qeth_qdio_out_q *queue;
f3d242e8 4423 struct qeth_hdr *hdr = NULL;
1da177e4
LT		 4424 int elements_needed = 0;
4425 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4426 struct qeth_eddp_context *ctx = NULL;
95f6b5a1 4427 int tx_bytes = skb->len;
ba1aa084 4428 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
7967168c 4429 unsigned short tso_size = skb_shinfo(skb)->gso_size;
f7b65d70 4430 struct sk_buff *new_skb, *new_skb2;
1da177e4
LT		 4431 int rc;
4432
4433 QETH_DBF_TEXT(trace, 6, "sendpkt");
4434
f7b65d70
FP		 4435 new_skb = skb;
4436 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4437 (skb->protocol == htons(ETH_P_IPV6)))
4438 return -EPERM;
4439 cast_type = qeth_get_cast_type(card, skb);
4440 if ((cast_type == RTN_BROADCAST) &&
4441 (card->info.broadcast_capable == 0))
4442 return -EPERM;
4443 queue = card->qdio.out_qs
4444 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
1da177e4
LT		 4445 if (!card->options.layer2) {
4446 ipv = qeth_get_ip_version(skb);
4447 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
f7b65d70
FP		 4448 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4449 if (!new_skb)
4450 return -ENOMEM;
e23dd9cd 4451 if(card->dev->type == ARPHRD_IEEE802_TR){
f7b65d70 4452 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
e23dd9cd 4453 } else {
f7b65d70 4454 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
e23dd9cd 4455 }
1da177e4
LT		 4456 }
4457 }
89114afd 4458 if (skb_is_gso(skb))
1da177e4 4459 large_send = card->options.large_send;
f7b65d70
FP		 4460 /* check on OSN device*/
4461 if (card->info.type == QETH_CARD_TYPE_OSN)
4462 hdr = (struct qeth_hdr *)new_skb->data;
4463 /*are we able to do TSO ? */
1da177e4
LT		 4464 if ((large_send == QETH_LARGE_SEND_TSO) &&
4465 (cast_type == RTN_UNSPEC)) {
f7b65d70 4466 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
05e08a2a 4467 if (rc) {
f7b65d70
FP		 4468 __qeth_free_new_skb(skb, new_skb);
4469 return rc;
e82b0f2c 4470 }
05e08a2a 4471 elements_needed++;
f7b65d70
FP		 4472 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4473 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4474 if (!new_skb2) {
4475 __qeth_free_new_skb(skb, new_skb);
4476 return -EINVAL;
05e08a2a 4477 }
f7b65d70
FP		 4478 if (new_skb != skb)
4479 __qeth_free_new_skb(new_skb2, new_skb);
4480 new_skb = new_skb2;
4481 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
1da177e4 4482 }
1da177e4 4483 if (large_send == QETH_LARGE_SEND_EDDP) {
f7b65d70 4484 ctx = qeth_eddp_create_context(card, new_skb, hdr);
1da177e4 4485 if (ctx == NULL) {
f7b65d70 4486 __qeth_free_new_skb(skb, new_skb);
1da177e4
LT		 4487 PRINT_WARN("could not create eddp context\n");
4488 return -EINVAL;
4489 }
4490 } else {
f7b65d70 4491 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
9cb90de8 4492 elements_needed);
f7b65d70
FP		 4493 if (!elems) {
4494 __qeth_free_new_skb(skb, new_skb);
1da177e4 4495 return -EINVAL;
f7b65d70 4496 }
9cb90de8 4497 elements_needed += elems;
1da177e4
LT		 4498 }
4499
4500 if (card->info.type != QETH_CARD_TYPE_IQD)
f7b65d70 4501 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
1da177e4
LT		 4502 elements_needed, ctx);
4503 else
f7b65d70 4504 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
1da177e4 4505 elements_needed, ctx);
f7b65d70 4506 if (!rc) {
1da177e4 4507 card->stats.tx_packets++;
95f6b5a1 4508 card->stats.tx_bytes += tx_bytes;
f7b65d70
FP		 4509 if (new_skb != skb)
4510 dev_kfree_skb_any(skb);
09d2d38a
FP		 4511 if (card->options.performance_stats) {
4512 if (tso_size &&
4513 !(large_send == QETH_LARGE_SEND_NO)) {
4514 card->perf_stats.large_send_bytes += tx_bytes;
4515 card->perf_stats.large_send_cnt++;
4516 }
4517 if (nr_frags > 0) {
4518 card->perf_stats.sg_skbs_sent++;
4519 /* nr_frags + skb->data */
4520 card->perf_stats.sg_frags_sent +=
4521 nr_frags + 1;
4522 }
1da177e4 4523 }
f7b65d70
FP		 4524 } else {
4525 card->stats.tx_dropped++;
4526 __qeth_free_new_skb(skb, new_skb);
1da177e4
LT		 4527 }
4528 if (ctx != NULL) {
4529 /* drop creator's reference */
4530 qeth_eddp_put_context(ctx);
4531 /* free skb; it's not referenced by a buffer */
f7b65d70
FP		 4532 if (!rc)
4533 dev_kfree_skb_any(new_skb);
1da177e4
LT		 4534 }
4535 return rc;
4536}
4537
4538static int
4539qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4540{
4541 struct qeth_card *card = (struct qeth_card *) dev->priv;
4542 int rc = 0;
4543
4544 switch(regnum){
4545 case MII_BMCR: /* Basic mode control register */
4546 rc = BMCR_FULLDPLX;
4547 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
500f83ab 4548 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
1da177e4
LT		 4549 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4550 rc |= BMCR_SPEED100;
4551 break;
4552 case MII_BMSR: /* Basic mode status register */
4553 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4554 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4555 BMSR_100BASE4;
4556 break;
4557 case MII_PHYSID1: /* PHYS ID 1 */
4558 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4559 dev->dev_addr[2];
4560 rc = (rc >> 5) & 0xFFFF;
4561 break;
4562 case MII_PHYSID2: /* PHYS ID 2 */
4563 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4564 break;
4565 case MII_ADVERTISE: /* Advertisement control reg */
4566 rc = ADVERTISE_ALL;
4567 break;
4568 case MII_LPA: /* Link partner ability reg */
4569 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4570 LPA_100BASE4 | LPA_LPACK;
4571 break;
4572 case MII_EXPANSION: /* Expansion register */
4573 break;
4574 case MII_DCOUNTER: /* disconnect counter */
4575 break;
4576 case MII_FCSCOUNTER: /* false carrier counter */
4577 break;
4578 case MII_NWAYTEST: /* N-way auto-neg test register */
4579 break;
4580 case MII_RERRCOUNTER: /* rx error counter */
4581 rc = card->stats.rx_errors;
4582 break;
4583 case MII_SREVISION: /* silicon revision */
4584 break;
4585 case MII_RESV1: /* reserved 1 */
4586 break;
4587 case MII_LBRERROR: /* loopback, rx, bypass error */
4588 break;
4589 case MII_PHYADDR: /* physical address */
4590 break;
4591 case MII_RESV2: /* reserved 2 */
4592 break;
4593 case MII_TPISTATUS: /* TPI status for 10mbps */
4594 break;
4595 case MII_NCONFIG: /* network interface config */
4596 break;
4597 default:
1da177e4
LT		 4598 break;
4599 }
4600 return rc;
4601}
4602
1da177e4
LT		 4603
4604static inline const char *
4605qeth_arp_get_error_cause(int *rc)
4606{
4607 switch (*rc) {
4608 case QETH_IPA_ARP_RC_FAILED:
4609 *rc = -EIO;
4610 return "operation failed";
4611 case QETH_IPA_ARP_RC_NOTSUPP:
4612 *rc = -EOPNOTSUPP;
4613 return "operation not supported";
4614 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4615 *rc = -EINVAL;
4616 return "argument out of range";
4617 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4618 *rc = -EOPNOTSUPP;
4619 return "query operation not supported";
4620 case QETH_IPA_ARP_RC_Q_NO_DATA:
4621 *rc = -ENOENT;
4622 return "no query data available";
4623 default:
4624 return "unknown error";
4625 }
4626}
4627
4628static int
4629qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4630 __u16, long);
4631
4632static int
4633qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4634{
4635 int tmp;
4636 int rc;
4637
4638 QETH_DBF_TEXT(trace,3,"arpstnoe");
4639
f3d242e8
FP		 4640 /*
4641 * currently GuestLAN only supports the ARP assist function
4642 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4643 * thus we say EOPNOTSUPP for this ARP function
4644 */
1da177e4
LT		 4645 if (card->info.guestlan)
4646 return -EOPNOTSUPP;
4647 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4648 PRINT_WARN("ARP processing not supported "
4649 "on %s!\n", QETH_CARD_IFNAME(card));
4650 return -EOPNOTSUPP;
4651 }
4652 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4653 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4654 no_entries);
4655 if (rc) {
4656 tmp = rc;
4657 PRINT_WARN("Could not set number of ARP entries on %s: "
4658 "%s (0x%x/%d)\n",
4659 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4660 tmp, tmp);
4661 }
4662 return rc;
4663}
4664
4665static inline void
4666qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4667 struct qeth_arp_query_data *qdata,
4668 int entry_size, int uentry_size)
4669{
4670 char *entry_ptr;
4671 char *uentry_ptr;
4672 int i;
4673
4674 entry_ptr = (char *)&qdata->data;
4675 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4676 for (i = 0; i < qdata->no_entries; ++i){
4677 /* strip off 32 bytes "media specific information" */
4678 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4679 entry_ptr += entry_size;
4680 uentry_ptr += uentry_size;
4681 }
4682}
4683
4684static int
4685qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4686 unsigned long data)
4687{
4688 struct qeth_ipa_cmd *cmd;
4689 struct qeth_arp_query_data *qdata;
4690 struct qeth_arp_query_info *qinfo;
4691 int entry_size;
4692 int uentry_size;
4693 int i;
4694
4695 QETH_DBF_TEXT(trace,4,"arpquecb");
4696
4697 qinfo = (struct qeth_arp_query_info *) reply->param;
4698 cmd = (struct qeth_ipa_cmd *) data;
4699 if (cmd->hdr.return_code) {
4700 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4701 return 0;
4702 }
4703 if (cmd->data.setassparms.hdr.return_code) {
4704 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4705 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4706 return 0;
4707 }
4708 qdata = &cmd->data.setassparms.data.query_arp;
4709 switch(qdata->reply_bits){
4710 case 5:
4711 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4712 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4713 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4714 break;
4715 case 7:
4716 /* fall through to default */
4717 default:
4718 /* tr is the same as eth -> entry7 */
4719 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4720 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4721 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4722 break;
4723 }
4724 /* check if there is enough room in userspace */
4725 if ((qinfo->udata_len - qinfo->udata_offset) <
4726 qdata->no_entries * uentry_size){
4727 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4728 cmd->hdr.return_code = -ENOMEM;
4729 PRINT_WARN("query ARP user space buffer is too small for "
4730 "the returned number of ARP entries. "
4731 "Aborting query!\n");
4732 goto out_error;
4733 }
4734 QETH_DBF_TEXT_(trace, 4, "anore%i",
4735 cmd->data.setassparms.hdr.number_of_replies);
4736 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4737 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4738
4739 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4740 /* strip off "media specific information" */
4741 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4742 uentry_size);
4743 } else
4744 /*copy entries to user buffer*/
4745 memcpy(qinfo->udata + qinfo->udata_offset,
4746 (char *)&qdata->data, qdata->no_entries*uentry_size);
4747
4748 qinfo->no_entries += qdata->no_entries;
4749 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4750 /* check if all replies received ... */
4751 if (cmd->data.setassparms.hdr.seq_no <
4752 cmd->data.setassparms.hdr.number_of_replies)
4753 return 1;
4754 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4755 /* keep STRIP_ENTRIES flag so the user program can distinguish
4756 * stripped entries from normal ones */
4757 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4758 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4759 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4760 return 0;
4761out_error:
4762 i = 0;
4763 memcpy(qinfo->udata, &i, 4);
4764 return 0;
4765}
4766
4767static int
4768qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4769 int len, int (*reply_cb)(struct qeth_card *,
4770 struct qeth_reply *,
4771 unsigned long),
4772 void *reply_param)
4773{
4774 QETH_DBF_TEXT(trace,4,"sendarp");
4775
4776 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4777 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4778 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4779 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4780 reply_cb, reply_param);
4781}
4782
4783static int
4784qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4785 int len, int (*reply_cb)(struct qeth_card *,
4786 struct qeth_reply *,
4787 unsigned long),
4788 void *reply_param)
4789{
4790 u16 s1, s2;
4791
4792 QETH_DBF_TEXT(trace,4,"sendsnmp");
4793
4794 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4795 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4796 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4797 /* adjust PDU length fields in IPA_PDU_HEADER */
4798 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4799 s2 = (u32) len;
4800 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4801 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4802 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4803 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4804 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4805 reply_cb, reply_param);
4806}
4807
4808static struct qeth_cmd_buffer *
4809qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4810 __u16, __u16, enum qeth_prot_versions);
4811static int
d2c993d8 4812qeth_arp_query(struct qeth_card *card, char __user *udata)
1da177e4
LT		 4813{
4814 struct qeth_cmd_buffer *iob;
4815 struct qeth_arp_query_info qinfo = {0, };
4816 int tmp;
4817 int rc;
4818
4819 QETH_DBF_TEXT(trace,3,"arpquery");
4820
1da177e4
LT		 4821 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4822 IPA_ARP_PROCESSING)) {
4823 PRINT_WARN("ARP processing not supported "
4824 "on %s!\n", QETH_CARD_IFNAME(card));
4825 return -EOPNOTSUPP;
4826 }
4827 /* get size of userspace buffer and mask_bits -> 6 bytes */
4828 if (copy_from_user(&qinfo, udata, 6))
4829 return -EFAULT;
88abaab4 4830 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
1da177e4 4831 return -ENOMEM;
1da177e4
LT		 4832 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4833 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4834 IPA_CMD_ASS_ARP_QUERY_INFO,
4835 sizeof(int),QETH_PROT_IPV4);
4836
4837 rc = qeth_send_ipa_arp_cmd(card, iob,
4838 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4839 qeth_arp_query_cb, (void *)&qinfo);
4840 if (rc) {
4841 tmp = rc;
4842 PRINT_WARN("Error while querying ARP cache on %s: %s "
4843 "(0x%x/%d)\n",
4844 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4845 tmp, tmp);
3a6b95c8
HC		 4846 if (copy_to_user(udata, qinfo.udata, 4))
4847 rc = -EFAULT;
1da177e4 4848 } else {
3a6b95c8
HC		 4849 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4850 rc = -EFAULT;
1da177e4
LT		 4851 }
4852 kfree(qinfo.udata);
4853 return rc;
4854}
4855
4856/**
4857 * SNMP command callback
4858 */
4859static int
4860qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4861 unsigned long sdata)
4862{
4863 struct qeth_ipa_cmd *cmd;
4864 struct qeth_arp_query_info *qinfo;
4865 struct qeth_snmp_cmd *snmp;
4866 unsigned char *data;
4867 __u16 data_len;
4868
4869 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4870
4871 cmd = (struct qeth_ipa_cmd *) sdata;
4872 data = (unsigned char *)((char *)cmd - reply->offset);
4873 qinfo = (struct qeth_arp_query_info *) reply->param;
4874 snmp = &cmd->data.setadapterparms.data.snmp;
4875
4876 if (cmd->hdr.return_code) {
4877 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4878 return 0;
4879 }
4880 if (cmd->data.setadapterparms.hdr.return_code) {
4881 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4882 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4883 return 0;
4884 }
4885 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4886 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4887 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4888 else
4889 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4890
4891 /* check if there is enough room in userspace */
4892 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4893 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4894 cmd->hdr.return_code = -ENOMEM;
4895 return 0;
4896 }
4897 QETH_DBF_TEXT_(trace, 4, "snore%i",
4898 cmd->data.setadapterparms.hdr.used_total);
4899 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4900 /*copy entries to user buffer*/
4901 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4902 memcpy(qinfo->udata + qinfo->udata_offset,
4903 (char *)snmp,
4904 data_len + offsetof(struct qeth_snmp_cmd,data));
4905 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4906 } else {
4907 memcpy(qinfo->udata + qinfo->udata_offset,
4908 (char *)&snmp->request, data_len);
4909 }
4910 qinfo->udata_offset += data_len;
4911 /* check if all replies received ... */
4912 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4913 cmd->data.setadapterparms.hdr.used_total);
4914 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4915 cmd->data.setadapterparms.hdr.seq_no);
4916 if (cmd->data.setadapterparms.hdr.seq_no <
4917 cmd->data.setadapterparms.hdr.used_total)
4918 return 1;
4919 return 0;
4920}
4921
4922static struct qeth_cmd_buffer *
4923qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4924 enum qeth_prot_versions );
4925
4926static struct qeth_cmd_buffer *
4927qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4928{
4929 struct qeth_cmd_buffer *iob;
4930 struct qeth_ipa_cmd *cmd;
4931
4932 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4933 QETH_PROT_IPV4);
4934 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4935 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4936 cmd->data.setadapterparms.hdr.command_code = command;
4937 cmd->data.setadapterparms.hdr.used_total = 1;
4938 cmd->data.setadapterparms.hdr.seq_no = 1;
4939
4940 return iob;
4941}
4942
4943/**
4944 * function to send SNMP commands to OSA-E card
4945 */
4946static int
d2c993d8 4947qeth_snmp_command(struct qeth_card *card, char __user *udata)
1da177e4
LT		 4948{
4949 struct qeth_cmd_buffer *iob;
4950 struct qeth_ipa_cmd *cmd;
4951 struct qeth_snmp_ureq *ureq;
4952 int req_len;
4953 struct qeth_arp_query_info qinfo = {0, };
4954 int rc = 0;
4955
4956 QETH_DBF_TEXT(trace,3,"snmpcmd");
4957
4958 if (card->info.guestlan)
4959 return -EOPNOTSUPP;
4960
4961 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4962 (!card->options.layer2) ) {
4963 PRINT_WARN("SNMP Query MIBS not supported "
4964 "on %s!\n", QETH_CARD_IFNAME(card));
4965 return -EOPNOTSUPP;
4966 }
4967 /* skip 4 bytes (data_len struct member) to get req_len */
4968 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4969 return -EFAULT;
4970 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4971 if (!ureq) {
4972 QETH_DBF_TEXT(trace, 2, "snmpnome");
4973 return -ENOMEM;
4974 }
4975 if (copy_from_user(ureq, udata,
4976 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4977 kfree(ureq);
4978 return -EFAULT;
4979 }
4980 qinfo.udata_len = ureq->hdr.data_len;
88abaab4 4981 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
1da177e4
LT		 4982 kfree(ureq);
4983 return -ENOMEM;
4984 }
1da177e4
LT		 4985 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4986
4987 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4988 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4989 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4990 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4991 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4992 qeth_snmp_command_cb, (void *)&qinfo);
4993 if (rc)
4994 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4995 QETH_CARD_IFNAME(card), rc);
3a6b95c8
HC		 4996 else {
4997 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4998 rc = -EFAULT;
4999 }
1da177e4
LT		 5000
5001 kfree(ureq);
5002 kfree(qinfo.udata);
5003 return rc;
5004}
5005
5006static int
5007qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5008 unsigned long);
5009
5010static int
6c951b90
FP		 5011qeth_default_setadapterparms_cb(struct qeth_card *card,
5012 struct qeth_reply *reply,
5013 unsigned long data);
5014static int
1da177e4
LT		 5015qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5016 __u16, long,
5017 int (*reply_cb)
5018 (struct qeth_card *, struct qeth_reply *, unsigned long),
5019 void *reply_param);
5020
5021static int
5022qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5023{
5024 struct qeth_cmd_buffer *iob;
5025 char buf[16];
5026 int tmp;
5027 int rc;
5028
5029 QETH_DBF_TEXT(trace,3,"arpadent");
5030
5031 /*
f3d242e8
FP		 5032 * currently GuestLAN only supports the ARP assist function
5033 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5034 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5035 */
5036 if (card->info.guestlan)
5037 return -EOPNOTSUPP;
5038 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5039 PRINT_WARN("ARP processing not supported "
5040 "on %s!\n", QETH_CARD_IFNAME(card));
5041 return -EOPNOTSUPP;
5042 }
5043
5044 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5045 IPA_CMD_ASS_ARP_ADD_ENTRY,
5046 sizeof(struct qeth_arp_cache_entry),
5047 QETH_PROT_IPV4);
5048 rc = qeth_send_setassparms(card, iob,
5049 sizeof(struct qeth_arp_cache_entry),
5050 (unsigned long) entry,
5051 qeth_default_setassparms_cb, NULL);
5052 if (rc) {
5053 tmp = rc;
5054 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5055 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5056 "%s (0x%x/%d)\n",
5057 buf, QETH_CARD_IFNAME(card),
5058 qeth_arp_get_error_cause(&rc), tmp, tmp);
5059 }
5060 return rc;
5061}
5062
5063static int
5064qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5065{
5066 struct qeth_cmd_buffer *iob;
5067 char buf[16] = {0, };
5068 int tmp;
5069 int rc;
5070
5071 QETH_DBF_TEXT(trace,3,"arprment");
5072
5073 /*
f3d242e8
FP		 5074 * currently GuestLAN only supports the ARP assist function
5075 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5076 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5077 */
5078 if (card->info.guestlan)
5079 return -EOPNOTSUPP;
5080 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5081 PRINT_WARN("ARP processing not supported "
5082 "on %s!\n", QETH_CARD_IFNAME(card));
5083 return -EOPNOTSUPP;
5084 }
5085 memcpy(buf, entry, 12);
5086 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5087 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5088 12,
5089 QETH_PROT_IPV4);
5090 rc = qeth_send_setassparms(card, iob,
5091 12, (unsigned long)buf,
5092 qeth_default_setassparms_cb, NULL);
5093 if (rc) {
5094 tmp = rc;
5095 memset(buf, 0, 16);
5096 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5097 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5098 "%s (0x%x/%d)\n",
5099 buf, QETH_CARD_IFNAME(card),
5100 qeth_arp_get_error_cause(&rc), tmp, tmp);
5101 }
5102 return rc;
5103}
5104
5105static int
5106qeth_arp_flush_cache(struct qeth_card *card)
5107{
5108 int rc;
5109 int tmp;
5110
5111 QETH_DBF_TEXT(trace,3,"arpflush");
5112
5113 /*
f3d242e8
FP		 5114 * currently GuestLAN only supports the ARP assist function
5115 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5116 * thus we say EOPNOTSUPP for this ARP function
5117 */
1da177e4
LT		 5118 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5119 return -EOPNOTSUPP;
5120 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5121 PRINT_WARN("ARP processing not supported "
5122 "on %s!\n", QETH_CARD_IFNAME(card));
5123 return -EOPNOTSUPP;
5124 }
5125 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5126 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5127 if (rc){
5128 tmp = rc;
5129 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5130 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5131 tmp, tmp);
5132 }
5133 return rc;
5134}
5135
5136static int
5137qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5138{
5139 struct qeth_card *card = (struct qeth_card *)dev->priv;
5140 struct qeth_arp_cache_entry arp_entry;
5141 struct mii_ioctl_data *mii_data;
5142 int rc = 0;
5143
5144 if (!card)
5145 return -ENODEV;
5146
5147 if ((card->state != CARD_STATE_UP) &&
5148 (card->state != CARD_STATE_SOFTSETUP))
5149 return -ENODEV;
5150
500f83ab
UB		 5151 if (card->info.type == QETH_CARD_TYPE_OSN)
5152 return -EPERM;
5153
1da177e4
LT		 5154 switch (cmd){
5155 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5156 if ( !capable(CAP_NET_ADMIN) ||
5157 (card->options.layer2) ) {
5158 rc = -EPERM;
5159 break;
5160 }
5161 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5162 break;
5163 case SIOC_QETH_ARP_QUERY_INFO:
5164 if ( !capable(CAP_NET_ADMIN) ||
5165 (card->options.layer2) ) {
5166 rc = -EPERM;
5167 break;
5168 }
5169 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5170 break;
5171 case SIOC_QETH_ARP_ADD_ENTRY:
5172 if ( !capable(CAP_NET_ADMIN) ||
5173 (card->options.layer2) ) {
5174 rc = -EPERM;
5175 break;
5176 }
5177 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5178 sizeof(struct qeth_arp_cache_entry)))
5179 rc = -EFAULT;
5180 else
5181 rc = qeth_arp_add_entry(card, &arp_entry);
5182 break;
5183 case SIOC_QETH_ARP_REMOVE_ENTRY:
5184 if ( !capable(CAP_NET_ADMIN) ||
5185 (card->options.layer2) ) {
5186 rc = -EPERM;
5187 break;
5188 }
5189 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5190 sizeof(struct qeth_arp_cache_entry)))
5191 rc = -EFAULT;
5192 else
5193 rc = qeth_arp_remove_entry(card, &arp_entry);
5194 break;
5195 case SIOC_QETH_ARP_FLUSH_CACHE:
5196 if ( !capable(CAP_NET_ADMIN) ||
5197 (card->options.layer2) ) {
5198 rc = -EPERM;
5199 break;
5200 }
5201 rc = qeth_arp_flush_cache(card);
5202 break;
5203 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5204 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5205 break;
5206 case SIOC_QETH_GET_CARD_TYPE:
5207 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5208 !card->info.guestlan)
5209 return 1;
5210 return 0;
5211 break;
5212 case SIOCGMIIPHY:
5213 mii_data = if_mii(rq);
5214 mii_data->phy_id = 0;
5215 break;
5216 case SIOCGMIIREG:
5217 mii_data = if_mii(rq);
5218 if (mii_data->phy_id != 0)
5219 rc = -EINVAL;
5220 else
5221 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5222 mii_data->reg_num);
5223 break;
1da177e4
LT		 5224 default:
5225 rc = -EOPNOTSUPP;
5226 }
5227 if (rc)
5228 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5229 return rc;
5230}
5231
5232static struct net_device_stats *
5233qeth_get_stats(struct net_device *dev)
5234{
5235 struct qeth_card *card;
5236
5237 card = (struct qeth_card *) (dev->priv);
5238
5239 QETH_DBF_TEXT(trace,5,"getstat");
5240
5241 return &card->stats;
5242}
5243
5244static int
5245qeth_change_mtu(struct net_device *dev, int new_mtu)
5246{
5247 struct qeth_card *card;
5248 char dbf_text[15];
5249
5250 card = (struct qeth_card *) (dev->priv);
5251
5252 QETH_DBF_TEXT(trace,4,"chgmtu");
5253 sprintf(dbf_text, "%8x", new_mtu);
5254 QETH_DBF_TEXT(trace,4,dbf_text);
5255
5256 if (new_mtu < 64)
5257 return -EINVAL;
5258 if (new_mtu > 65535)
5259 return -EINVAL;
5260 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5261 (!qeth_mtu_is_valid(card, new_mtu)))
5262 return -EINVAL;
5263 dev->mtu = new_mtu;
5264 return 0;
5265}
5266
5267#ifdef CONFIG_QETH_VLAN
5268static void
5269qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5270{
5271 struct qeth_card *card;
5272 unsigned long flags;
5273
5274 QETH_DBF_TEXT(trace,4,"vlanreg");
5275
5276 card = (struct qeth_card *) dev->priv;
5277 spin_lock_irqsave(&card->vlanlock, flags);
5278 card->vlangrp = grp;
5279 spin_unlock_irqrestore(&card->vlanlock, flags);
5280}
5281
5282static inline void
5283qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5284 unsigned short vid)
5285{
5286 int i;
5287 struct sk_buff *skb;
5288 struct sk_buff_head tmp_list;
5289
5290 skb_queue_head_init(&tmp_list);
91ebe2a9 5291 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
1da177e4
LT		 5292 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5293 while ((skb = skb_dequeue(&buf->skb_list))){
5294 if (vlan_tx_tag_present(skb) &&
5295 (vlan_tx_tag_get(skb) == vid)) {
5296 atomic_dec(&skb->users);
5297 dev_kfree_skb(skb);
5298 } else
5299 skb_queue_tail(&tmp_list, skb);
5300 }
5301 }
5302 while ((skb = skb_dequeue(&tmp_list)))
5303 skb_queue_tail(&buf->skb_list, skb);
5304}
5305
5306static void
5307qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5308{
5309 int i, j;
5310
5311 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5312 for (i = 0; i < card->qdio.no_out_queues; ++i){
5313 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5314 qeth_free_vlan_buffer(card, &card->qdio.
5315 out_qs[i]->bufs[j], vid);
5316 }
5317}
5318
5319static void
5320qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5321{
5322 struct in_device *in_dev;
5323 struct in_ifaddr *ifa;
5324 struct qeth_ipaddr *addr;
5325
5326 QETH_DBF_TEXT(trace, 4, "frvaddr4");
6c88ad2d 5327
1da177e4 5328 rcu_read_lock();
e5ed6399 5329 in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
1da177e4
LT		 5330 if (!in_dev)
5331 goto out;
5332 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5333 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5334 if (addr){
5335 addr->u.a4.addr = ifa->ifa_address;
5336 addr->u.a4.mask = ifa->ifa_mask;
5337 addr->type = QETH_IP_TYPE_NORMAL;
5338 if (!qeth_delete_ip(card, addr))
5339 kfree(addr);
5340 }
5341 }
5342out:
5343 rcu_read_unlock();
5344}
5345
5346static void
5347qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5348{
5349#ifdef CONFIG_QETH_IPV6
5350 struct inet6_dev *in6_dev;
5351 struct inet6_ifaddr *ifa;
5352 struct qeth_ipaddr *addr;
5353
5354 QETH_DBF_TEXT(trace, 4, "frvaddr6");
6c88ad2d 5355
1da177e4
LT		 5356 in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5357 if (!in6_dev)
5358 return;
5359 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5360 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5361 if (addr){
5362 memcpy(&addr->u.a6.addr, &ifa->addr,
5363 sizeof(struct in6_addr));
5364 addr->u.a6.pfxlen = ifa->prefix_len;
5365 addr->type = QETH_IP_TYPE_NORMAL;
5366 if (!qeth_delete_ip(card, addr))
5367 kfree(addr);
5368 }
5369 }
5370 in6_dev_put(in6_dev);
5371#endif /* CONFIG_QETH_IPV6 */
5372}
5373
6c88ad2d
FP		 5374static void
5375qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5376{
5377 if (card->options.layer2 || !card->vlangrp)
5378 return;
5379 qeth_free_vlan_addresses4(card, vid);
5380 qeth_free_vlan_addresses6(card, vid);
5381}
5382
508cc2b0
FP		 5383static int
5384qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5385 struct qeth_reply *reply,
5386 unsigned long data)
5387{
5388 struct qeth_ipa_cmd *cmd;
5389
5390 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5391 cmd = (struct qeth_ipa_cmd *) data;
5392 if (cmd->hdr.return_code) {
5393 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
e82b0f2c 5394 "Continuing\n",cmd->data.setdelvlan.vlan_id,
508cc2b0
FP		 5395 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5396 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5397 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5398 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5399 }
5400 return 0;
5401}
5402
5403static int
1da177e4
LT		 5404qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5405 enum qeth_ipa_cmds ipacmd)
5406{
1da177e4
LT		 5407 struct qeth_ipa_cmd *cmd;
5408 struct qeth_cmd_buffer *iob;
5409
5410 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5411 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5412 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5413 cmd->data.setdelvlan.vlan_id = i;
e82b0f2c 5414 return qeth_send_ipa_cmd(card, iob,
508cc2b0 5415 qeth_layer2_send_setdelvlan_cb, NULL);
1da177e4
LT		 5416}
5417
5418static void
5419qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5420{
5421 unsigned short i;
5422
5423 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5424
5425 if (!card->vlangrp)
5426 return;
5427 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5428 if (card->vlangrp->vlan_devices[i] == NULL)
5429 continue;
5430 if (clear)
5431 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5432 else
5433 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5434 }
5435}
5436
5437/*add_vid is layer 2 used only ....*/
5438static void
5439qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5440{
5441 struct qeth_card *card;
5442
5443 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5444
5445 card = (struct qeth_card *) dev->priv;
5446 if (!card->options.layer2)
5447 return;
5448 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5449}
5450
5451/*... kill_vid used for both modes*/
5452static void
5453qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5454{
5455 struct qeth_card *card;
5456 unsigned long flags;
5457
5458 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5459
5460 card = (struct qeth_card *) dev->priv;
5461 /* free all skbs for the vlan device */
5462 qeth_free_vlan_skbs(card, vid);
5463 spin_lock_irqsave(&card->vlanlock, flags);
5464 /* unregister IP addresses of vlan device */
6c88ad2d 5465 qeth_free_vlan_addresses(card, vid);
1da177e4
LT		 5466 if (card->vlangrp)
5467 card->vlangrp->vlan_devices[vid] = NULL;
5468 spin_unlock_irqrestore(&card->vlanlock, flags);
5469 if (card->options.layer2)
5470 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5471 qeth_set_multicast_list(card->dev);
5472}
5473#endif
6c951b90
FP		 5474/**
5475 * Examine hardware response to SET_PROMISC_MODE
5476 */
5477static int
e82b0f2c 5478qeth_setadp_promisc_mode_cb(struct qeth_card *card,
6c951b90
FP		 5479 struct qeth_reply *reply,
5480 unsigned long data)
5481{
5482 struct qeth_ipa_cmd *cmd;
5483 struct qeth_ipacmd_setadpparms *setparms;
5484
5485 QETH_DBF_TEXT(trace,4,"prmadpcb");
5486
5487 cmd = (struct qeth_ipa_cmd *) data;
5488 setparms = &(cmd->data.setadapterparms);
e82b0f2c 5489
6c951b90 5490 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
e82b0f2c
JG		 5491 if (cmd->hdr.return_code) {
5492 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
6c951b90
FP		 5493 setparms->data.mode = SET_PROMISC_MODE_OFF;
5494 }
5495 card->info.promisc_mode = setparms->data.mode;
5496 return 0;
5497}
5498/*
5499 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5500 */
5501static void
5502qeth_setadp_promisc_mode(struct qeth_card *card)
5503{
5504 enum qeth_ipa_promisc_modes mode;
5505 struct net_device *dev = card->dev;
5506 struct qeth_cmd_buffer *iob;
5507 struct qeth_ipa_cmd *cmd;
5508
5509 QETH_DBF_TEXT(trace, 4, "setprom");
5510
5511 if (((dev->flags & IFF_PROMISC) &&
5512 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5513 (!(dev->flags & IFF_PROMISC) &&
5514 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5515 return;
5516 mode = SET_PROMISC_MODE_OFF;
5517 if (dev->flags & IFF_PROMISC)
5518 mode = SET_PROMISC_MODE_ON;
5519 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5520
5521 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5522 sizeof(struct qeth_ipacmd_setadpparms));
5523 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5524 cmd->data.setadapterparms.data.mode = mode;
5525 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5526}
1da177e4
LT		 5527
5528/**
5529 * set multicast address on card
5530 */
5531static void
5532qeth_set_multicast_list(struct net_device *dev)
5533{
5534 struct qeth_card *card = (struct qeth_card *) dev->priv;
5535
500f83ab
UB		 5536 if (card->info.type == QETH_CARD_TYPE_OSN)
5537 return ;
e82b0f2c 5538
66cc5d5a 5539 QETH_DBF_TEXT(trace, 3, "setmulti");
1da177e4 5540 qeth_delete_mc_addresses(card);
6c88ad2d
FP		 5541 if (card->options.layer2) {
5542 qeth_layer2_add_multicast(card);
5543 goto out;
5544 }
1da177e4
LT		 5545 qeth_add_multicast_ipv4(card);
5546#ifdef CONFIG_QETH_IPV6
5547 qeth_add_multicast_ipv6(card);
5548#endif
6c88ad2d 5549out:
1da177e4
LT		 5550 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5551 schedule_work(&card->kernel_thread_starter);
6c951b90
FP		 5552 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5553 return;
5554 if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5555 schedule_work(&card->kernel_thread_starter);
1da177e4
LT		 5556}
5557
5558static int
5559qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5560{
5561 return 0;
5562}
5563
5564static void
5565qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5566{
5567 if (dev->type == ARPHRD_IEEE802_TR)
5568 ip_tr_mc_map(ipm, mac);
5569 else
5570 ip_eth_mc_map(ipm, mac);
5571}
5572
5573static struct qeth_ipaddr *
5574qeth_get_addr_buffer(enum qeth_prot_versions prot)
5575{
5576 struct qeth_ipaddr *addr;
5577
88abaab4 5578 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
1da177e4
LT		 5579 if (addr == NULL) {
5580 PRINT_WARN("Not enough memory to add address\n");
5581 return NULL;
5582 }
1da177e4
LT		 5583 addr->type = QETH_IP_TYPE_NORMAL;
5584 addr->proto = prot;
5585 return addr;
5586}
5587
500f83ab
UB		 5588int
5589qeth_osn_assist(struct net_device *dev,
5590 void *data,
5591 int data_len)
5592{
5593 struct qeth_cmd_buffer *iob;
5594 struct qeth_card *card;
5595 int rc;
e82b0f2c 5596
500f83ab
UB		 5597 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5598 if (!dev)
5599 return -ENODEV;
5600 card = (struct qeth_card *)dev->priv;
5601 if (!card)
5602 return -ENODEV;
5603 if ((card->state != CARD_STATE_UP) &&
5604 (card->state != CARD_STATE_SOFTSETUP))
5605 return -ENODEV;
5606 iob = qeth_wait_for_buffer(&card->write);
5607 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5608 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5609 return rc;
5610}
5611
5612static struct net_device *
5613qeth_netdev_by_devno(unsigned char *read_dev_no)
5614{
5615 struct qeth_card *card;
5616 struct net_device *ndev;
5617 unsigned char *readno;
5618 __u16 temp_dev_no, card_dev_no;
5619 char *endp;
5620 unsigned long flags;
5621
5622 ndev = NULL;
5623 memcpy(&temp_dev_no, read_dev_no, 2);
5624 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5625 list_for_each_entry(card, &qeth_card_list.list, list) {
5626 readno = CARD_RDEV_ID(card);
5627 readno += (strlen(readno) - 4);
5628 card_dev_no = simple_strtoul(readno, &endp, 16);
5629 if (card_dev_no == temp_dev_no) {
5630 ndev = card->dev;
5631 break;
5632 }
5633 }
5634 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5635 return ndev;
5636}
5637
5638int
5639qeth_osn_register(unsigned char *read_dev_no,
5640 struct net_device **dev,
5641 int (*assist_cb)(struct net_device *, void *),
5642 int (*data_cb)(struct sk_buff *))
5643{
5644 struct qeth_card * card;
5645
5646 QETH_DBF_TEXT(trace, 2, "osnreg");
5647 *dev = qeth_netdev_by_devno(read_dev_no);
5648 if (*dev == NULL)
5649 return -ENODEV;
5650 card = (struct qeth_card *)(*dev)->priv;
5651 if (!card)
5652 return -ENODEV;
5653 if ((assist_cb == NULL) || (data_cb == NULL))
5654 return -EINVAL;
5655 card->osn_info.assist_cb = assist_cb;
5656 card->osn_info.data_cb = data_cb;
5657 return 0;
5658}
5659
5660void
5661qeth_osn_deregister(struct net_device * dev)
5662{
5663 struct qeth_card *card;
5664
5665 QETH_DBF_TEXT(trace, 2, "osndereg");
5666 if (!dev)
5667 return;
5668 card = (struct qeth_card *)dev->priv;
5669 if (!card)
5670 return;
5671 card->osn_info.assist_cb = NULL;
5672 card->osn_info.data_cb = NULL;
5673 return;
5674}
e82b0f2c 5675
1da177e4
LT		 5676static void
5677qeth_delete_mc_addresses(struct qeth_card *card)
5678{
5679 struct qeth_ipaddr *iptodo;
5680 unsigned long flags;
5681
5682 QETH_DBF_TEXT(trace,4,"delmc");
5683 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5684 if (!iptodo) {
5685 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5686 return;
5687 }
5688 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5689 spin_lock_irqsave(&card->ip_lock, flags);
5690 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5691 kfree(iptodo);
5692 spin_unlock_irqrestore(&card->ip_lock, flags);
5693}
5694
5695static inline void
5696qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5697{
5698 struct qeth_ipaddr *ipm;
5699 struct ip_mc_list *im4;
5700 char buf[MAX_ADDR_LEN];
5701
5702 QETH_DBF_TEXT(trace,4,"addmc");
5703 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5704 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5705 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5706 if (!ipm)
5707 continue;
5708 ipm->u.a4.addr = im4->multiaddr;
5709 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5710 ipm->is_multicast = 1;
5711 if (!qeth_add_ip(card,ipm))
5712 kfree(ipm);
5713 }
5714}
5715
5716static inline void
5717qeth_add_vlan_mc(struct qeth_card *card)
5718{
5719#ifdef CONFIG_QETH_VLAN
5720 struct in_device *in_dev;
5721 struct vlan_group *vg;
5722 int i;
5723
5724 QETH_DBF_TEXT(trace,4,"addmcvl");
5725 if ( ((card->options.layer2 == 0) &&
5726 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5727 (card->vlangrp == NULL) )
5728 return ;
5729
5730 vg = card->vlangrp;
5731 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5732 if (vg->vlan_devices[i] == NULL ||
5733 !(vg->vlan_devices[i]->flags & IFF_UP))
5734 continue;
5735 in_dev = in_dev_get(vg->vlan_devices[i]);
5736 if (!in_dev)
5737 continue;
5738 read_lock(&in_dev->mc_list_lock);
5739 qeth_add_mc(card,in_dev);
5740 read_unlock(&in_dev->mc_list_lock);
5741 in_dev_put(in_dev);
5742 }
5743#endif
5744}
5745
5746static void
5747qeth_add_multicast_ipv4(struct qeth_card *card)
5748{
5749 struct in_device *in4_dev;
5750
5751 QETH_DBF_TEXT(trace,4,"chkmcv4");
5752 in4_dev = in_dev_get(card->dev);
5753 if (in4_dev == NULL)
5754 return;
5755 read_lock(&in4_dev->mc_list_lock);
5756 qeth_add_mc(card, in4_dev);
5757 qeth_add_vlan_mc(card);
5758 read_unlock(&in4_dev->mc_list_lock);
5759 in_dev_put(in4_dev);
5760}
5761
6c88ad2d
FP		 5762static void
5763qeth_layer2_add_multicast(struct qeth_card *card)
5764{
5765 struct qeth_ipaddr *ipm;
5766 struct dev_mc_list *dm;
5767
5768 QETH_DBF_TEXT(trace,4,"L2addmc");
5769 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5770 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5771 if (!ipm)
5772 continue;
5773 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5774 ipm->is_multicast = 1;
5775 if (!qeth_add_ip(card, ipm))
5776 kfree(ipm);
5777 }
5778}
5779
1da177e4
LT		 5780#ifdef CONFIG_QETH_IPV6
5781static inline void
5782qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5783{
5784 struct qeth_ipaddr *ipm;
5785 struct ifmcaddr6 *im6;
5786 char buf[MAX_ADDR_LEN];
5787
5788 QETH_DBF_TEXT(trace,4,"addmc6");
5789 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5790 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5791 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5792 if (!ipm)
5793 continue;
5794 ipm->is_multicast = 1;
5795 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5796 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5797 sizeof(struct in6_addr));
5798 if (!qeth_add_ip(card,ipm))
5799 kfree(ipm);
5800 }
5801}
5802
5803static inline void
5804qeth_add_vlan_mc6(struct qeth_card *card)
5805{
5806#ifdef CONFIG_QETH_VLAN
5807 struct inet6_dev *in_dev;
5808 struct vlan_group *vg;
5809 int i;
5810
5811 QETH_DBF_TEXT(trace,4,"admc6vl");
5812 if ( ((card->options.layer2 == 0) &&
5813 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5814 (card->vlangrp == NULL))
5815 return ;
5816
5817 vg = card->vlangrp;
5818 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5819 if (vg->vlan_devices[i] == NULL ||
5820 !(vg->vlan_devices[i]->flags & IFF_UP))
5821 continue;
5822 in_dev = in6_dev_get(vg->vlan_devices[i]);
5823 if (!in_dev)
5824 continue;
5825 read_lock(&in_dev->lock);
5826 qeth_add_mc6(card,in_dev);
5827 read_unlock(&in_dev->lock);
5828 in6_dev_put(in_dev);
5829 }
5830#endif /* CONFIG_QETH_VLAN */
5831}
5832
5833static void
5834qeth_add_multicast_ipv6(struct qeth_card *card)
5835{
5836 struct inet6_dev *in6_dev;
5837
5838 QETH_DBF_TEXT(trace,4,"chkmcv6");
e82b0f2c 5839 if (!qeth_is_supported(card, IPA_IPV6))
1da177e4 5840 return ;
1da177e4
LT		 5841 in6_dev = in6_dev_get(card->dev);
5842 if (in6_dev == NULL)
5843 return;
5844 read_lock(&in6_dev->lock);
5845 qeth_add_mc6(card, in6_dev);
5846 qeth_add_vlan_mc6(card);
5847 read_unlock(&in6_dev->lock);
5848 in6_dev_put(in6_dev);
5849}
5850#endif /* CONFIG_QETH_IPV6 */
5851
5852static int
5853qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5854 enum qeth_ipa_cmds ipacmd,
5855 int (*reply_cb) (struct qeth_card *,
5856 struct qeth_reply*,
5857 unsigned long))
5858{
5859 struct qeth_ipa_cmd *cmd;
5860 struct qeth_cmd_buffer *iob;
5861
5862 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5863 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5864 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5865 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5866 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5867 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5868}
5869
5870static int
5871qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5872 struct qeth_reply *reply,
5873 unsigned long data)
5874{
5875 struct qeth_ipa_cmd *cmd;
5876 __u8 *mac;
5877
5878 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5879 cmd = (struct qeth_ipa_cmd *) data;
5880 mac = &cmd->data.setdelmac.mac[0];
5881 /* MAC already registered, needed in couple/uncouple case */
5882 if (cmd->hdr.return_code == 0x2005) {
5883 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5884 "already existing on %s \n",
5885 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5886 QETH_CARD_IFNAME(card));
5887 cmd->hdr.return_code = 0;
5888 }
5889 if (cmd->hdr.return_code)
5890 PRINT_ERR("Could not set group MAC " \
5891 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5892 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5893 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5894 return 0;
5895}
5896
5897static int
5898qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5899{
5900 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5901 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5902 qeth_layer2_send_setgroupmac_cb);
5903}
5904
5905static int
5906qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5907 struct qeth_reply *reply,
5908 unsigned long data)
5909{
5910 struct qeth_ipa_cmd *cmd;
5911 __u8 *mac;
5912
5913 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5914 cmd = (struct qeth_ipa_cmd *) data;
5915 mac = &cmd->data.setdelmac.mac[0];
5916 if (cmd->hdr.return_code)
5917 PRINT_ERR("Could not delete group MAC " \
5918 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5919 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5920 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5921 return 0;
5922}
5923
5924static int
5925qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5926{
5927 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5928 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5929 qeth_layer2_send_delgroupmac_cb);
5930}
5931
5932static int
5933qeth_layer2_send_setmac_cb(struct qeth_card *card,
5934 struct qeth_reply *reply,
5935 unsigned long data)
5936{
5937 struct qeth_ipa_cmd *cmd;
5938
5939 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5940 cmd = (struct qeth_ipa_cmd *) data;
5941 if (cmd->hdr.return_code) {
5942 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5943 PRINT_WARN("Error in registering MAC address on " \
5944 "device %s: x%x\n", CARD_BUS_ID(card),
5945 cmd->hdr.return_code);
e08d88cc 5946 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5947 cmd->hdr.return_code = -EIO;
5948 } else {
e08d88cc 5949 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5950 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5951 OSA_ADDR_LEN);
5952 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5953 "successfully registered on device %s\n",
5954 card->dev->dev_addr[0], card->dev->dev_addr[1],
5955 card->dev->dev_addr[2], card->dev->dev_addr[3],
5956 card->dev->dev_addr[4], card->dev->dev_addr[5],
5957 card->dev->name);
5958 }
5959 return 0;
5960}
5961
5962static int
5963qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5964{
5965 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5966 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5967 qeth_layer2_send_setmac_cb);
5968}
5969
5970static int
5971qeth_layer2_send_delmac_cb(struct qeth_card *card,
5972 struct qeth_reply *reply,
5973 unsigned long data)
5974{
5975 struct qeth_ipa_cmd *cmd;
5976
5977 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5978 cmd = (struct qeth_ipa_cmd *) data;
5979 if (cmd->hdr.return_code) {
5980 PRINT_WARN("Error in deregistering MAC address on " \
5981 "device %s: x%x\n", CARD_BUS_ID(card),
5982 cmd->hdr.return_code);
5983 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5984 cmd->hdr.return_code = -EIO;
5985 return 0;
5986 }
e08d88cc 5987 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5988
5989 return 0;
5990}
5991static int
5992qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5993{
5994 QETH_DBF_TEXT(trace, 2, "L2Delmac");
e08d88cc 5995 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
1da177e4
LT		 5996 return 0;
5997 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5998 qeth_layer2_send_delmac_cb);
5999}
6000
6001static int
6002qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6003{
6004 struct sockaddr *addr = p;
6005 struct qeth_card *card;
6006 int rc = 0;
6007
6008 QETH_DBF_TEXT(trace, 3, "setmac");
6009
6010 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6011 QETH_DBF_TEXT(trace, 3, "setmcINV");
6012 return -EOPNOTSUPP;
6013 }
6014 card = (struct qeth_card *) dev->priv;
6015
6016 if (!card->options.layer2) {
e08d88cc 6017 PRINT_WARN("Setting MAC address on %s is not supported "
1da177e4
LT		 6018 "in Layer 3 mode.\n", dev->name);
6019 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6020 return -EOPNOTSUPP;
6021 }
500f83ab
UB		 6022 if (card->info.type == QETH_CARD_TYPE_OSN) {
6023 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6024 dev->name);
6025 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6026 return -EOPNOTSUPP;
6027 }
1da177e4
LT		 6028 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6029 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6030 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6031 if (!rc)
6032 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6033 return rc;
6034}
6035
6036static void
6037qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6038 __u8 command, enum qeth_prot_versions prot)
6039{
6040 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6041 cmd->hdr.command = command;
6042 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6043 cmd->hdr.seqno = card->seqno.ipa;
6044 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6045 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6046 if (card->options.layer2)
6047 cmd->hdr.prim_version_no = 2;
6048 else
6049 cmd->hdr.prim_version_no = 1;
6050 cmd->hdr.param_count = 1;
6051 cmd->hdr.prot_version = prot;
6052 cmd->hdr.ipa_supported = 0;
6053 cmd->hdr.ipa_enabled = 0;
6054}
6055
6056static struct qeth_cmd_buffer *
6057qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6058 enum qeth_prot_versions prot)
6059{
6060 struct qeth_cmd_buffer *iob;
6061 struct qeth_ipa_cmd *cmd;
6062
6063 iob = qeth_wait_for_buffer(&card->write);
6064 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6065 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6066
6067 return iob;
6068}
6069
6070static int
6071qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6072{
6073 int rc;
6074 struct qeth_cmd_buffer *iob;
6075 struct qeth_ipa_cmd *cmd;
6076
6077 QETH_DBF_TEXT(trace,4,"setdelmc");
6078
6079 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6080 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6081 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6082 if (addr->proto == QETH_PROT_IPV6)
6083 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6084 sizeof(struct in6_addr));
6085 else
6086 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6087
6088 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6089
6090 return rc;
6091}
6092static inline void
6093qeth_fill_netmask(u8 *netmask, unsigned int len)
6094{
6095 int i,j;
6096 for (i=0;i<16;i++) {
6097 j=(len)-(i*8);
6098 if (j >= 8)
6099 netmask[i] = 0xff;
6100 else if (j > 0)
6101 netmask[i] = (u8)(0xFF00>>j);
6102 else
6103 netmask[i] = 0;
6104 }
6105}
6106
6107static int
6108qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6109 int ipacmd, unsigned int flags)
6110{
6111 int rc;
6112 struct qeth_cmd_buffer *iob;
6113 struct qeth_ipa_cmd *cmd;
6114 __u8 netmask[16];
6115
6116 QETH_DBF_TEXT(trace,4,"setdelip");
6117 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6118
6119 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6120 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6121 if (addr->proto == QETH_PROT_IPV6) {
6122 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6123 sizeof(struct in6_addr));
6124 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6125 memcpy(cmd->data.setdelip6.mask, netmask,
6126 sizeof(struct in6_addr));
6127 cmd->data.setdelip6.flags = flags;
6128 } else {
6129 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6130 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6131 cmd->data.setdelip4.flags = flags;
6132 }
6133
6134 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6135
6136 return rc;
6137}
6138
6139static int
6140qeth_layer2_register_addr_entry(struct qeth_card *card,
6141 struct qeth_ipaddr *addr)
6142{
6143 if (!addr->is_multicast)
6144 return 0;
6145 QETH_DBF_TEXT(trace, 2, "setgmac");
6146 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6147 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6148}
6149
6150static int
6151qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6152 struct qeth_ipaddr *addr)
6153{
6154 if (!addr->is_multicast)
6155 return 0;
6156 QETH_DBF_TEXT(trace, 2, "delgmac");
6157 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6158 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6159}
6160
6161static int
6162qeth_layer3_register_addr_entry(struct qeth_card *card,
6163 struct qeth_ipaddr *addr)
6164{
6165 char buf[50];
6166 int rc;
6167 int cnt = 3;
6168
6169 if (addr->proto == QETH_PROT_IPV4) {
6170 QETH_DBF_TEXT(trace, 2,"setaddr4");
6171 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6172 } else if (addr->proto == QETH_PROT_IPV6) {
6173 QETH_DBF_TEXT(trace, 2, "setaddr6");
6174 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6175 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6176 } else {
6177 QETH_DBF_TEXT(trace, 2, "setaddr?");
6178 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6179 }
6180 do {
6181 if (addr->is_multicast)
6182 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6183 else
6184 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6185 addr->set_flags);
6186 if (rc)
6187 QETH_DBF_TEXT(trace, 2, "failed");
6188 } while ((--cnt > 0) && rc);
6189 if (rc){
6190 QETH_DBF_TEXT(trace, 2, "FAILED");
6191 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6192 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6193 buf, rc, rc);
6194 }
6195 return rc;
6196}
6197
6198static int
6199qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6200 struct qeth_ipaddr *addr)
6201{
6202 //char buf[50];
6203 int rc;
6204
6205 if (addr->proto == QETH_PROT_IPV4) {
6206 QETH_DBF_TEXT(trace, 2,"deladdr4");
6207 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6208 } else if (addr->proto == QETH_PROT_IPV6) {
6209 QETH_DBF_TEXT(trace, 2, "deladdr6");
6210 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6211 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6212 } else {
6213 QETH_DBF_TEXT(trace, 2, "deladdr?");
6214 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6215 }
6216 if (addr->is_multicast)
6217 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6218 else
6219 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6220 addr->del_flags);
6221 if (rc) {
6222 QETH_DBF_TEXT(trace, 2, "failed");
6223 /* TODO: re-activate this warning as soon as we have a
6224 * clean mirco code
6225 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6226 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6227 buf, rc);
6228 */
6229 }
6230 return rc;
6231}
6232
6233static int
6234qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6235{
6236 if (card->options.layer2)
6237 return qeth_layer2_register_addr_entry(card, addr);
6238
6239 return qeth_layer3_register_addr_entry(card, addr);
6240}
6241
6242static int
6243qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6244{
6245 if (card->options.layer2)
6246 return qeth_layer2_deregister_addr_entry(card, addr);
6247
6248 return qeth_layer3_deregister_addr_entry(card, addr);
6249}
6250
6251static u32
6252qeth_ethtool_get_tx_csum(struct net_device *dev)
6253{
6254 /* We may need to say that we support tx csum offload if
6255 * we do EDDP or TSO. There are discussions going on to
6256 * enforce rules in the stack and in ethtool that make
6257 * SG and TSO depend on HW_CSUM. At the moment there are
6258 * no such rules....
6259 * If we say yes here, we have to checksum outbound packets
6260 * any time. */
6261 return 0;
6262}
6263
6264static int
6265qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6266{
6267 return -EINVAL;
6268}
6269
6270static u32
6271qeth_ethtool_get_rx_csum(struct net_device *dev)
6272{
6273 struct qeth_card *card = (struct qeth_card *)dev->priv;
6274
6275 return (card->options.checksum_type == HW_CHECKSUMMING);
6276}
6277
6278static int
6279qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6280{
6281 struct qeth_card *card = (struct qeth_card *)dev->priv;
6282
6283 if ((card->state != CARD_STATE_DOWN) &&
6284 (card->state != CARD_STATE_RECOVER))
6285 return -EPERM;
6286 if (data)
6287 card->options.checksum_type = HW_CHECKSUMMING;
6288 else
6289 card->options.checksum_type = SW_CHECKSUMMING;
6290 return 0;
6291}
6292
6293static u32
6294qeth_ethtool_get_sg(struct net_device *dev)
6295{
6296 struct qeth_card *card = (struct qeth_card *)dev->priv;
6297
6298 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6299 (dev->features & NETIF_F_SG));
6300}
6301
6302static int
6303qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6304{
6305 struct qeth_card *card = (struct qeth_card *)dev->priv;
6306
6307 if (data) {
6308 if (card->options.large_send != QETH_LARGE_SEND_NO)
6309 dev->features |= NETIF_F_SG;
6310 else {
6311 dev->features &= ~NETIF_F_SG;
6312 return -EINVAL;
6313 }
6314 } else
6315 dev->features &= ~NETIF_F_SG;
6316 return 0;
6317}
6318
6319static u32
6320qeth_ethtool_get_tso(struct net_device *dev)
6321{
6322 struct qeth_card *card = (struct qeth_card *)dev->priv;
6323
6324 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6325 (dev->features & NETIF_F_TSO));
6326}
6327
6328static int
6329qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6330{
6331 struct qeth_card *card = (struct qeth_card *)dev->priv;
6332
6333 if (data) {
6334 if (card->options.large_send != QETH_LARGE_SEND_NO)
6335 dev->features |= NETIF_F_TSO;
6336 else {
6337 dev->features &= ~NETIF_F_TSO;
6338 return -EINVAL;
6339 }
6340 } else
6341 dev->features &= ~NETIF_F_TSO;
6342 return 0;
6343}
6344
6345static struct ethtool_ops qeth_ethtool_ops = {
6346 .get_tx_csum = qeth_ethtool_get_tx_csum,
6347 .set_tx_csum = qeth_ethtool_set_tx_csum,
6348 .get_rx_csum = qeth_ethtool_get_rx_csum,
6349 .set_rx_csum = qeth_ethtool_set_rx_csum,
6350 .get_sg = qeth_ethtool_get_sg,
6351 .set_sg = qeth_ethtool_set_sg,
6352 .get_tso = qeth_ethtool_get_tso,
6353 .set_tso = qeth_ethtool_set_tso,
6354};
6355
6356static int
6357qeth_netdev_init(struct net_device *dev)
6358{
6359 struct qeth_card *card;
6360
6361 card = (struct qeth_card *) dev->priv;
6362
6363 QETH_DBF_TEXT(trace,3,"initdev");
6364
6365 dev->tx_timeout = &qeth_tx_timeout;
6366 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6367 dev->open = qeth_open;
6368 dev->stop = qeth_stop;
6369 dev->hard_start_xmit = qeth_hard_start_xmit;
6370 dev->do_ioctl = qeth_do_ioctl;
6371 dev->get_stats = qeth_get_stats;
6372 dev->change_mtu = qeth_change_mtu;
6373 dev->neigh_setup = qeth_neigh_setup;
6374 dev->set_multicast_list = qeth_set_multicast_list;
6375#ifdef CONFIG_QETH_VLAN
6376 dev->vlan_rx_register = qeth_vlan_rx_register;
6377 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6378 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6379#endif
1da177e4
LT		 6380 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6381 dev->rebuild_header = NULL;
6382 dev->hard_header = NULL;
1da177e4
LT		 6383 dev->header_cache_update = NULL;
6384 dev->hard_header_cache = NULL;
6385 }
6386#ifdef CONFIG_QETH_IPV6
6387 /*IPv6 address autoconfiguration stuff*/
6388 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6389 card->dev->dev_id = card->info.unique_id & 0xffff;
6390#endif
e82b0f2c 6391 if (card->options.fake_ll &&
ba1aa084
UB		 6392 (qeth_get_netdev_flags(card) & IFF_NOARP))
6393 dev->hard_header = qeth_fake_header;
1da177e4
LT		 6394 dev->hard_header_parse = NULL;
6395 dev->set_mac_address = qeth_layer2_set_mac_address;
6396 dev->flags |= qeth_get_netdev_flags(card);
6397 if ((card->options.fake_broadcast) ||
6398 (card->info.broadcast_capable))
6399 dev->flags |= IFF_BROADCAST;
6400 dev->hard_header_len =
6401 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6402 dev->addr_len = OSA_ADDR_LEN;
6403 dev->mtu = card->info.initial_mtu;
500f83ab
UB		 6404 if (card->info.type != QETH_CARD_TYPE_OSN)
6405 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
1da177e4
LT		 6406 SET_MODULE_OWNER(dev);
6407 return 0;
6408}
6409
6410static void
6411qeth_init_func_level(struct qeth_card *card)
6412{
6413 if (card->ipato.enabled) {
6414 if (card->info.type == QETH_CARD_TYPE_IQD)
6415 card->info.func_level =
6416 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6417 else
6418 card->info.func_level =
6419 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6420 } else {
6421 if (card->info.type == QETH_CARD_TYPE_IQD)
500f83ab 6422 /*FIXME:why do we have same values for dis and ena for osae??? */
1da177e4
LT		 6423 card->info.func_level =
6424 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6425 else
6426 card->info.func_level =
6427 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6428 }
6429}
6430
6431/**
6432 * hardsetup card, initialize MPC and QDIO stuff
6433 */
6434static int
6435qeth_hardsetup_card(struct qeth_card *card)
6436{
6437 int retries = 3;
6438 int rc;
6439
6440 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6441
6442retry:
6443 if (retries < 3){
6444 PRINT_WARN("Retrying to do IDX activates.\n");
6445 ccw_device_set_offline(CARD_DDEV(card));
6446 ccw_device_set_offline(CARD_WDEV(card));
6447 ccw_device_set_offline(CARD_RDEV(card));
6448 ccw_device_set_online(CARD_RDEV(card));
6449 ccw_device_set_online(CARD_WDEV(card));
6450 ccw_device_set_online(CARD_DDEV(card));
6451 }
500f83ab 6452 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 6453 if (rc == -ERESTARTSYS) {
6454 QETH_DBF_TEXT(setup, 2, "break1");
6455 return rc;
6456 } else if (rc) {
6457 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6458 if (--retries < 0)
6459 goto out;
6460 else
6461 goto retry;
6462 }
6463 if ((rc = qeth_get_unitaddr(card))){
6464 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6465 return rc;
6466 }
6467 qeth_init_tokens(card);
6468 qeth_init_func_level(card);
6469 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6470 if (rc == -ERESTARTSYS) {
6471 QETH_DBF_TEXT(setup, 2, "break2");
6472 return rc;
6473 } else if (rc) {
6474 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6475 if (--retries < 0)
6476 goto out;
6477 else
6478 goto retry;
6479 }
6480 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6481 if (rc == -ERESTARTSYS) {
6482 QETH_DBF_TEXT(setup, 2, "break3");
6483 return rc;
6484 } else if (rc) {
6485 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6486 if (--retries < 0)
6487 goto out;
6488 else
6489 goto retry;
6490 }
6491 if ((rc = qeth_mpc_initialize(card))){
6492 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6493 goto out;
6494 }
6495 /*network device will be recovered*/
6496 if (card->dev) {
6497 card->dev->hard_header = card->orig_hard_header;
e82b0f2c 6498 if (card->options.fake_ll &&
b85e1fa1
UB		 6499 (qeth_get_netdev_flags(card) & IFF_NOARP))
6500 card->dev->hard_header = qeth_fake_header;
1da177e4
LT		 6501 return 0;
6502 }
6503 /* at first set_online allocate netdev */
6504 card->dev = qeth_get_netdevice(card->info.type,
6505 card->info.link_type);
6506 if (!card->dev){
500f83ab
UB		 6507 qeth_qdio_clear_card(card, card->info.type !=
6508 QETH_CARD_TYPE_IQD);
1da177e4
LT		 6509 rc = -ENODEV;
6510 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6511 goto out;
6512 }
6513 card->dev->priv = card;
6514 card->orig_hard_header = card->dev->hard_header;
6515 card->dev->type = qeth_get_arphdr_type(card->info.type,
6516 card->info.link_type);
6517 card->dev->init = qeth_netdev_init;
6518 return 0;
6519out:
6520 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6521 return rc;
6522}
6523
6524static int
6525qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6526 unsigned long data)
6527{
6528 struct qeth_ipa_cmd *cmd;
6529
6530 QETH_DBF_TEXT(trace,4,"defadpcb");
6531
6532 cmd = (struct qeth_ipa_cmd *) data;
6533 if (cmd->hdr.return_code == 0){
6534 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6535 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6536 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6537#ifdef CONFIG_QETH_IPV6
6538 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6539 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6540#endif
6541 }
6542 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6543 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6544 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6545 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6546 }
6547 return 0;
6548}
6549
6550static int
6551qeth_default_setadapterparms_cb(struct qeth_card *card,
6552 struct qeth_reply *reply,
6553 unsigned long data)
6554{
6555 struct qeth_ipa_cmd *cmd;
6556
6557 QETH_DBF_TEXT(trace,4,"defadpcb");
6558
6559 cmd = (struct qeth_ipa_cmd *) data;
6560 if (cmd->hdr.return_code == 0)
6561 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6562 return 0;
6563}
6564
6c951b90
FP		 6565
6566
1da177e4
LT		 6567static int
6568qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6569 unsigned long data)
6570{
6571 struct qeth_ipa_cmd *cmd;
6572
6573 QETH_DBF_TEXT(trace,3,"quyadpcb");
6574
6575 cmd = (struct qeth_ipa_cmd *) data;
6576 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6577 card->info.link_type =
6578 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6579 card->options.adp.supported_funcs =
6580 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6581 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6582}
6583
6584static int
6585qeth_query_setadapterparms(struct qeth_card *card)
6586{
6587 int rc;
6588 struct qeth_cmd_buffer *iob;
6589
6590 QETH_DBF_TEXT(trace,3,"queryadp");
6591 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6592 sizeof(struct qeth_ipacmd_setadpparms));
6593 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6594 return rc;
6595}
6596
6597static int
6598qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6599 struct qeth_reply *reply,
6600 unsigned long data)
6601{
6602 struct qeth_ipa_cmd *cmd;
6603
6604 QETH_DBF_TEXT(trace,4,"chgmaccb");
6605
6606 cmd = (struct qeth_ipa_cmd *) data;
e08d88cc 6607 if (!card->options.layer2 || card->info.guestlan ||
e82b0f2c 6608 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
e08d88cc
FP		 6609 memcpy(card->dev->dev_addr,
6610 &cmd->data.setadapterparms.data.change_addr.addr,
6611 OSA_ADDR_LEN);
6612 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6613 }
1da177e4
LT		 6614 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6615 return 0;
6616}
6617
6618static int
6619qeth_setadpparms_change_macaddr(struct qeth_card *card)
6620{
6621 int rc;
6622 struct qeth_cmd_buffer *iob;
6623 struct qeth_ipa_cmd *cmd;
6624
6625 QETH_DBF_TEXT(trace,4,"chgmac");
6626
6627 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6628 sizeof(struct qeth_ipacmd_setadpparms));
6629 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6630 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6631 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6632 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6633 card->dev->dev_addr, OSA_ADDR_LEN);
6634 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6635 NULL);
6636 return rc;
6637}
6638
6639static int
6640qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6641{
6642 int rc;
6643 struct qeth_cmd_buffer *iob;
6644 struct qeth_ipa_cmd *cmd;
6645
6646 QETH_DBF_TEXT(trace,4,"adpmode");
6647
6648 iob = qeth_get_adapter_cmd(card, command,
6649 sizeof(struct qeth_ipacmd_setadpparms));
6650 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6651 cmd->data.setadapterparms.data.mode = mode;
6652 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6653 NULL);
6654 return rc;
6655}
6656
6657static inline int
6658qeth_setadapter_hstr(struct qeth_card *card)
6659{
6660 int rc;
6661
6662 QETH_DBF_TEXT(trace,4,"adphstr");
6663
6664 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6665 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6666 card->options.broadcast_mode);
6667 if (rc)
6668 PRINT_WARN("couldn't set broadcast mode on "
6669 "device %s: x%x\n",
6670 CARD_BUS_ID(card), rc);
6671 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6672 card->options.macaddr_mode);
6673 if (rc)
6674 PRINT_WARN("couldn't set macaddr mode on "
6675 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6676 return rc;
6677 }
6678 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6679 PRINT_WARN("set adapter parameters not available "
6680 "to set broadcast mode, using ALLRINGS "
6681 "on device %s:\n", CARD_BUS_ID(card));
6682 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6683 PRINT_WARN("set adapter parameters not available "
6684 "to set macaddr mode, using NONCANONICAL "
6685 "on device %s:\n", CARD_BUS_ID(card));
6686 return 0;
6687}
6688
6689static int
6690qeth_setadapter_parms(struct qeth_card *card)
6691{
6692 int rc;
6693
6694 QETH_DBF_TEXT(setup, 2, "setadprm");
6695
6696 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6697 PRINT_WARN("set adapter parameters not supported "
6698 "on device %s.\n",
6699 CARD_BUS_ID(card));
6700 QETH_DBF_TEXT(setup, 2, " notsupp");
6701 return 0;
6702 }
6703 rc = qeth_query_setadapterparms(card);
6704 if (rc) {
6705 PRINT_WARN("couldn't set adapter parameters on device %s: "
6706 "x%x\n", CARD_BUS_ID(card), rc);
6707 return rc;
6708 }
6709 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6710 rc = qeth_setadpparms_change_macaddr(card);
6711 if (rc)
6712 PRINT_WARN("couldn't get MAC address on "
6713 "device %s: x%x\n",
6714 CARD_BUS_ID(card), rc);
6715 }
6716
6717 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6718 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6719 rc = qeth_setadapter_hstr(card);
6720
6721 return rc;
6722}
6723
6724static int
6725qeth_layer2_initialize(struct qeth_card *card)
6726{
6727 int rc = 0;
6728
6729
6730 QETH_DBF_TEXT(setup, 2, "doL2init");
6731 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6732
6c951b90
FP		 6733 rc = qeth_query_setadapterparms(card);
6734 if (rc) {
6735 PRINT_WARN("could not query adapter parameters on device %s: "
6736 "x%x\n", CARD_BUS_ID(card), rc);
6737 }
6738
1da177e4
LT		 6739 rc = qeth_setadpparms_change_macaddr(card);
6740 if (rc) {
6741 PRINT_WARN("couldn't get MAC address on "
6742 "device %s: x%x\n",
6743 CARD_BUS_ID(card), rc);
6744 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6745 return rc;
6746 }
6747 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6748
6749 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6750 if (rc)
6751 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6752 return 0;
6753}
6754
6755
6756static int
6757qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6758 enum qeth_prot_versions prot)
6759{
6760 int rc;
6761 struct qeth_cmd_buffer *iob;
6762
6763 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6764 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6765
6766 return rc;
6767}
6768
6769static int
6770qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6771{
6772 int rc;
6773
6774 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6775
6776 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6777 return rc;
6778}
6779
6780static int
6781qeth_send_stoplan(struct qeth_card *card)
6782{
6783 int rc = 0;
6784
6785 /*
6786 * TODO: according to the IPA format document page 14,
6787 * TCP/IP (we!) never issue a STOPLAN
6788 * is this right ?!?
6789 */
6790 QETH_DBF_TEXT(trace, 2, "stoplan");
6791
6792 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6793 return rc;
6794}
6795
6796static int
6797qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6798 unsigned long data)
6799{
6800 struct qeth_ipa_cmd *cmd;
6801
6802 QETH_DBF_TEXT(setup, 2, "qipasscb");
6803
6804 cmd = (struct qeth_ipa_cmd *) data;
6805 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6806 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6807 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
9123e0d7
UB		 6808 /* Disable IPV6 support hard coded for Hipersockets */
6809 if(card->info.type == QETH_CARD_TYPE_IQD)
6810 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
1da177e4
LT		 6811 } else {
6812#ifdef CONFIG_QETH_IPV6
6813 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6814 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6815#endif
6816 }
6817 QETH_DBF_TEXT(setup, 2, "suppenbl");
6818 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6819 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6820 return 0;
6821}
6822
6823static int
6824qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6825{
6826 int rc;
6827 struct qeth_cmd_buffer *iob;
6828
6829 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6830 if (card->options.layer2) {
6831 QETH_DBF_TEXT(setup, 2, "noprmly2");
6832 return -EPERM;
6833 }
6834
6835 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6836 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6837 return rc;
6838}
6839
6840static struct qeth_cmd_buffer *
6841qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6842 __u16 cmd_code, __u16 len,
6843 enum qeth_prot_versions prot)
6844{
6845 struct qeth_cmd_buffer *iob;
6846 struct qeth_ipa_cmd *cmd;
6847
6848 QETH_DBF_TEXT(trace,4,"getasscm");
6849 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6850
6851 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6852 cmd->data.setassparms.hdr.assist_no = ipa_func;
6853 cmd->data.setassparms.hdr.length = 8 + len;
6854 cmd->data.setassparms.hdr.command_code = cmd_code;
6855 cmd->data.setassparms.hdr.return_code = 0;
6856 cmd->data.setassparms.hdr.seq_no = 0;
6857
6858 return iob;
6859}
6860
6861static int
6862qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6863 __u16 len, long data,
6864 int (*reply_cb)
6865 (struct qeth_card *,struct qeth_reply *,unsigned long),
6866 void *reply_param)
6867{
6868 int rc;
6869 struct qeth_ipa_cmd *cmd;
6870
6871 QETH_DBF_TEXT(trace,4,"sendassp");
6872
6873 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6874 if (len <= sizeof(__u32))
6875 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1380fee2 6876 else /* (len > sizeof(__u32)) */
1da177e4
LT		 6877 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6878
6879 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6880 return rc;
6881}
6882
6883#ifdef CONFIG_QETH_IPV6
6884static int
6885qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6886 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6887
6888{
6889 int rc;
6890 struct qeth_cmd_buffer *iob;
6891
6892 QETH_DBF_TEXT(trace,4,"simassp6");
6893 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6894 0, QETH_PROT_IPV6);
6895 rc = qeth_send_setassparms(card, iob, 0, 0,
6896 qeth_default_setassparms_cb, NULL);
6897 return rc;
6898}
6899#endif
6900
6901static int
6902qeth_send_simple_setassparms(struct qeth_card *card,
6903 enum qeth_ipa_funcs ipa_func,
6904 __u16 cmd_code, long data)
6905{
6906 int rc;
6907 int length = 0;
6908 struct qeth_cmd_buffer *iob;
6909
6910 QETH_DBF_TEXT(trace,4,"simassp4");
6911 if (data)
6912 length = sizeof(__u32);
6913 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6914 length, QETH_PROT_IPV4);
6915 rc = qeth_send_setassparms(card, iob, length, data,
6916 qeth_default_setassparms_cb, NULL);
6917 return rc;
6918}
6919
6920static inline int
6921qeth_start_ipa_arp_processing(struct qeth_card *card)
6922{
6923 int rc;
6924
6925 QETH_DBF_TEXT(trace,3,"ipaarp");
6926
6927 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6928 PRINT_WARN("ARP processing not supported "
6929 "on %s!\n", QETH_CARD_IFNAME(card));
6930 return 0;
6931 }
6932 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6933 IPA_CMD_ASS_START, 0);
6934 if (rc) {
6935 PRINT_WARN("Could not start ARP processing "
6936 "assist on %s: 0x%x\n",
6937 QETH_CARD_IFNAME(card), rc);
6938 }
6939 return rc;
6940}
6941
6942static int
6943qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6944{
6945 int rc;
6946
6947 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6948
6949 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6950 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6951 QETH_CARD_IFNAME(card));
6952 return -EOPNOTSUPP;
6953 }
6954
6955 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6956 IPA_CMD_ASS_START, 0);
6957 if (rc) {
6958 PRINT_WARN("Could not start Hardware IP fragmentation "
6959 "assist on %s: 0x%x\n",
6960 QETH_CARD_IFNAME(card), rc);
6961 } else
6962 PRINT_INFO("Hardware IP fragmentation enabled \n");
6963 return rc;
6964}
6965
6966static int
6967qeth_start_ipa_source_mac(struct qeth_card *card)
6968{
6969 int rc;
6970
6971 QETH_DBF_TEXT(trace,3,"stsrcmac");
6972
6973 if (!card->options.fake_ll)
6974 return -EOPNOTSUPP;
6975
6976 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6977 PRINT_INFO("Inbound source address not "
6978 "supported on %s\n", QETH_CARD_IFNAME(card));
6979 return -EOPNOTSUPP;
6980 }
6981
6982 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6983 IPA_CMD_ASS_START, 0);
6984 if (rc)
6985 PRINT_WARN("Could not start inbound source "
6986 "assist on %s: 0x%x\n",
6987 QETH_CARD_IFNAME(card), rc);
6988 return rc;
6989}
6990
6991static int
6992qeth_start_ipa_vlan(struct qeth_card *card)
6993{
6994 int rc = 0;
6995
6996 QETH_DBF_TEXT(trace,3,"strtvlan");
6997
6998#ifdef CONFIG_QETH_VLAN
6999 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7000 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7001 return -EOPNOTSUPP;
7002 }
7003
7004 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7005 IPA_CMD_ASS_START,0);
7006 if (rc) {
7007 PRINT_WARN("Could not start vlan "
7008 "assist on %s: 0x%x\n",
7009 QETH_CARD_IFNAME(card), rc);
7010 } else {
7011 PRINT_INFO("VLAN enabled \n");
7012 card->dev->features |=
7013 NETIF_F_HW_VLAN_FILTER |
7014 NETIF_F_HW_VLAN_TX |
7015 NETIF_F_HW_VLAN_RX;
7016 }
7017#endif /* QETH_VLAN */
7018 return rc;
7019}
7020
7021static int
7022qeth_start_ipa_multicast(struct qeth_card *card)
7023{
7024 int rc;
7025
7026 QETH_DBF_TEXT(trace,3,"stmcast");
7027
7028 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7029 PRINT_WARN("Multicast not supported on %s\n",
7030 QETH_CARD_IFNAME(card));
7031 return -EOPNOTSUPP;
7032 }
7033
7034 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7035 IPA_CMD_ASS_START,0);
7036 if (rc) {
7037 PRINT_WARN("Could not start multicast "
7038 "assist on %s: rc=%i\n",
7039 QETH_CARD_IFNAME(card), rc);
7040 } else {
7041 PRINT_INFO("Multicast enabled\n");
7042 card->dev->flags |= IFF_MULTICAST;
7043 }
7044 return rc;
7045}
7046
7047#ifdef CONFIG_QETH_IPV6
7048static int
7049qeth_softsetup_ipv6(struct qeth_card *card)
7050{
7051 int rc;
7052
7053 QETH_DBF_TEXT(trace,3,"softipv6");
7054
1da177e4
LT		 7055 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7056 if (rc) {
7057 PRINT_ERR("IPv6 startlan failed on %s\n",
7058 QETH_CARD_IFNAME(card));
7059 return rc;
7060 }
1da177e4
LT		 7061 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7062 if (rc) {
7063 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7064 QETH_CARD_IFNAME(card));
7065 return rc;
7066 }
7067 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7068 IPA_CMD_ASS_START, 3);
7069 if (rc) {
7070 PRINT_WARN("IPv6 start assist (version 4) failed "
7071 "on %s: 0x%x\n",
7072 QETH_CARD_IFNAME(card), rc);
7073 return rc;
7074 }
7075 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7076 IPA_CMD_ASS_START);
7077 if (rc) {
7078 PRINT_WARN("IPV6 start assist (version 6) failed "
7079 "on %s: 0x%x\n",
7080 QETH_CARD_IFNAME(card), rc);
7081 return rc;
7082 }
7083 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7084 IPA_CMD_ASS_START);
7085 if (rc) {
7086 PRINT_WARN("Could not enable passthrough "
7087 "on %s: 0x%x\n",
7088 QETH_CARD_IFNAME(card), rc);
7089 return rc;
7090 }
7091 PRINT_INFO("IPV6 enabled \n");
7092 return 0;
7093}
7094
7095#endif
7096
7097static int
7098qeth_start_ipa_ipv6(struct qeth_card *card)
7099{
7100 int rc = 0;
7101#ifdef CONFIG_QETH_IPV6
7102 QETH_DBF_TEXT(trace,3,"strtipv6");
7103
7104 if (!qeth_is_supported(card, IPA_IPV6)) {
7105 PRINT_WARN("IPv6 not supported on %s\n",
7106 QETH_CARD_IFNAME(card));
7107 return 0;
7108 }
7109 rc = qeth_softsetup_ipv6(card);
7110#endif
7111 return rc ;
7112}
7113
7114static int
7115qeth_start_ipa_broadcast(struct qeth_card *card)
7116{
7117 int rc;
7118
7119 QETH_DBF_TEXT(trace,3,"stbrdcst");
7120 card->info.broadcast_capable = 0;
7121 if (!qeth_is_supported(card, IPA_FILTERING)) {
7122 PRINT_WARN("Broadcast not supported on %s\n",
7123 QETH_CARD_IFNAME(card));
7124 rc = -EOPNOTSUPP;
7125 goto out;
7126 }
7127 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7128 IPA_CMD_ASS_START, 0);
7129 if (rc) {
7130 PRINT_WARN("Could not enable broadcasting filtering "
7131 "on %s: 0x%x\n",
7132 QETH_CARD_IFNAME(card), rc);
7133 goto out;
7134 }
7135
7136 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7137 IPA_CMD_ASS_CONFIGURE, 1);
7138 if (rc) {
7139 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7140 QETH_CARD_IFNAME(card), rc);
7141 goto out;
7142 }
7143 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7144 PRINT_INFO("Broadcast enabled \n");
7145 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7146 IPA_CMD_ASS_ENABLE, 1);
7147 if (rc) {
7148 PRINT_WARN("Could not set up broadcast echo filtering on "
7149 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7150 goto out;
7151 }
7152 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7153out:
7154 if (card->info.broadcast_capable)
7155 card->dev->flags |= IFF_BROADCAST;
7156 else
7157 card->dev->flags &= ~IFF_BROADCAST;
7158 return rc;
7159}
7160
7161static int
7162qeth_send_checksum_command(struct qeth_card *card)
7163{
7164 int rc;
7165
7166 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7167 IPA_CMD_ASS_START, 0);
7168 if (rc) {
7169 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7170 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7171 QETH_CARD_IFNAME(card), rc);
7172 return rc;
7173 }
7174 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7175 IPA_CMD_ASS_ENABLE,
7176 card->info.csum_mask);
7177 if (rc) {
7178 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7179 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7180 QETH_CARD_IFNAME(card), rc);
7181 return rc;
7182 }
7183 return 0;
7184}
7185
7186static int
7187qeth_start_ipa_checksum(struct qeth_card *card)
7188{
7189 int rc = 0;
7190
7191 QETH_DBF_TEXT(trace,3,"strtcsum");
7192
7193 if (card->options.checksum_type == NO_CHECKSUMMING) {
7194 PRINT_WARN("Using no checksumming on %s.\n",
7195 QETH_CARD_IFNAME(card));
7196 return 0;
7197 }
7198 if (card->options.checksum_type == SW_CHECKSUMMING) {
7199 PRINT_WARN("Using SW checksumming on %s.\n",
7200 QETH_CARD_IFNAME(card));
7201 return 0;
7202 }
7203 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7204 PRINT_WARN("Inbound HW Checksumming not "
7205 "supported on %s,\ncontinuing "
7206 "using Inbound SW Checksumming\n",
7207 QETH_CARD_IFNAME(card));
7208 card->options.checksum_type = SW_CHECKSUMMING;
7209 return 0;
7210 }
7211 rc = qeth_send_checksum_command(card);
7212 if (!rc) {
7213 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7214 }
7215 return rc;
7216}
7217
7218static int
7219qeth_start_ipa_tso(struct qeth_card *card)
7220{
7221 int rc;
7222
7223 QETH_DBF_TEXT(trace,3,"sttso");
7224
7225 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7226 PRINT_WARN("Outbound TSO not supported on %s\n",
7227 QETH_CARD_IFNAME(card));
7228 rc = -EOPNOTSUPP;
7229 } else {
7230 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7231 IPA_CMD_ASS_START,0);
7232 if (rc)
7233 PRINT_WARN("Could not start outbound TSO "
7234 "assist on %s: rc=%i\n",
7235 QETH_CARD_IFNAME(card), rc);
7236 else
7237 PRINT_INFO("Outbound TSO enabled\n");
7238 }
7239 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7240 card->options.large_send = QETH_LARGE_SEND_NO;
7241 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7242 }
7243 return rc;
7244}
7245
7246static int
7247qeth_start_ipassists(struct qeth_card *card)
7248{
7249 QETH_DBF_TEXT(trace,3,"strtipas");
7250 qeth_start_ipa_arp_processing(card); /* go on*/
7251 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7252 qeth_start_ipa_source_mac(card); /* go on*/
7253 qeth_start_ipa_vlan(card); /* go on*/
7254 qeth_start_ipa_multicast(card); /* go on*/
7255 qeth_start_ipa_ipv6(card); /* go on*/
7256 qeth_start_ipa_broadcast(card); /* go on*/
7257 qeth_start_ipa_checksum(card); /* go on*/
7258 qeth_start_ipa_tso(card); /* go on*/
7259 return 0;
7260}
7261
7262static int
7263qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7264 enum qeth_prot_versions prot)
7265{
7266 int rc;
7267 struct qeth_ipa_cmd *cmd;
7268 struct qeth_cmd_buffer *iob;
7269
7270 QETH_DBF_TEXT(trace,4,"setroutg");
7271 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7272 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7273 cmd->data.setrtg.type = (type);
7274 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7275
7276 return rc;
7277
7278}
7279
7280static void
7281qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7282 enum qeth_prot_versions prot)
7283{
7284 if (card->info.type == QETH_CARD_TYPE_IQD) {
7285 switch (*type) {
7286 case NO_ROUTER:
7287 case PRIMARY_CONNECTOR:
7288 case SECONDARY_CONNECTOR:
7289 case MULTICAST_ROUTER:
7290 return;
7291 default:
7292 goto out_inval;
7293 }
7294 } else {
7295 switch (*type) {
7296 case NO_ROUTER:
7297 case PRIMARY_ROUTER:
7298 case SECONDARY_ROUTER:
7299 return;
7300 case MULTICAST_ROUTER:
7301 if (qeth_is_ipafunc_supported(card, prot,
7302 IPA_OSA_MC_ROUTER))
7303 return;
7304 default:
7305 goto out_inval;
7306 }
7307 }
7308out_inval:
7309 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7310 "Router status set to 'no router'.\n",
7311 ((*type == PRIMARY_ROUTER)? "primary router" :
7312 (*type == SECONDARY_ROUTER)? "secondary router" :
7313 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7314 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7315 (*type == MULTICAST_ROUTER)? "multicast router" :
7316 "unknown"),
7317 card->dev->name);
7318 *type = NO_ROUTER;
7319}
7320
7321int
7322qeth_setrouting_v4(struct qeth_card *card)
7323{
7324 int rc;
7325
7326 QETH_DBF_TEXT(trace,3,"setrtg4");
7327
7328 qeth_correct_routing_type(card, &card->options.route4.type,
7329 QETH_PROT_IPV4);
7330
7331 rc = qeth_send_setrouting(card, card->options.route4.type,
7332 QETH_PROT_IPV4);
7333 if (rc) {
7334 card->options.route4.type = NO_ROUTER;
7335 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7336 "Type set to 'no router'.\n",
7337 rc, QETH_CARD_IFNAME(card));
7338 }
7339 return rc;
7340}
7341
7342int
7343qeth_setrouting_v6(struct qeth_card *card)
7344{
7345 int rc = 0;
7346
7347 QETH_DBF_TEXT(trace,3,"setrtg6");
7348#ifdef CONFIG_QETH_IPV6
7349
8b98a37c
FP		 7350 if (!qeth_is_supported(card, IPA_IPV6))
7351 return 0;
1da177e4
LT		 7352 qeth_correct_routing_type(card, &card->options.route6.type,
7353 QETH_PROT_IPV6);
7354
1da177e4
LT		 7355 rc = qeth_send_setrouting(card, card->options.route6.type,
7356 QETH_PROT_IPV6);
7357 if (rc) {
7358 card->options.route6.type = NO_ROUTER;
7359 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7360 "Type set to 'no router'.\n",
7361 rc, QETH_CARD_IFNAME(card));
7362 }
7363#endif
7364 return rc;
7365}
7366
7367int
9cb90de8 7368qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
1da177e4
LT		 7369{
7370 int rc = 0;
7371
9cb90de8
FP		 7372 if (card->dev == NULL) {
7373 card->options.large_send = type;
1da177e4 7374 return 0;
9cb90de8 7375 }
b85e1fa1
UB		 7376 if (card->state == CARD_STATE_UP)
7377 netif_tx_disable(card->dev);
9cb90de8 7378 card->options.large_send = type;
1da177e4
LT		 7379 switch (card->options.large_send) {
7380 case QETH_LARGE_SEND_EDDP:
7381 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7382 break;
7383 case QETH_LARGE_SEND_TSO:
7384 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7385 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7386 } else {
7387 PRINT_WARN("TSO not supported on %s. "
7388 "large_send set to 'no'.\n",
7389 card->dev->name);
7390 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7391 card->options.large_send = QETH_LARGE_SEND_NO;
7392 rc = -EOPNOTSUPP;
7393 }
7394 break;
7395 default: /* includes QETH_LARGE_SEND_NO */
7396 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7397 break;
7398 }
b85e1fa1
UB		 7399 if (card->state == CARD_STATE_UP)
7400 netif_wake_queue(card->dev);
1da177e4
LT		 7401 return rc;
7402}
7403
7404/*
7405 * softsetup card: init IPA stuff
7406 */
7407static int
7408qeth_softsetup_card(struct qeth_card *card)
7409{
7410 int rc;
7411
7412 QETH_DBF_TEXT(setup, 2, "softsetp");
7413
7414 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7415 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7416 if (rc == 0xe080){
7417 PRINT_WARN("LAN on card %s if offline! "
7418 "Continuing softsetup.\n",
7419 CARD_BUS_ID(card));
7420 card->lan_online = 0;
7421 } else
7422 return rc;
7423 } else
7424 card->lan_online = 1;
500f83ab
UB		 7425 if (card->info.type==QETH_CARD_TYPE_OSN)
7426 goto out;
66cc5d5a 7427 qeth_set_large_send(card, card->options.large_send);
1da177e4
LT		 7428 if (card->options.layer2) {
7429 card->dev->features |=
7430 NETIF_F_HW_VLAN_FILTER |
7431 NETIF_F_HW_VLAN_TX |
7432 NETIF_F_HW_VLAN_RX;
7433 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7434 card->info.broadcast_capable=1;
7435 if ((rc = qeth_layer2_initialize(card))) {
7436 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7437 return rc;
7438 }
7439#ifdef CONFIG_QETH_VLAN
7440 qeth_layer2_process_vlans(card, 0);
7441#endif
7442 goto out;
7443 }
1da177e4
LT		 7444 if ((rc = qeth_setadapter_parms(card)))
7445 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7446 if ((rc = qeth_start_ipassists(card)))
7447 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7448 if ((rc = qeth_setrouting_v4(card)))
7449 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7450 if ((rc = qeth_setrouting_v6(card)))
7451 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7452out:
b85e1fa1 7453 netif_tx_disable(card->dev);
1da177e4
LT		 7454 return 0;
7455}
7456
7457#ifdef CONFIG_QETH_IPV6
7458static int
7459qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7460 unsigned long data)
7461{
7462 struct qeth_ipa_cmd *cmd;
7463
7464 cmd = (struct qeth_ipa_cmd *) data;
7465 if (cmd->hdr.return_code == 0)
7466 card->info.unique_id = *((__u16 *)
7467 &cmd->data.create_destroy_addr.unique_id[6]);
7468 else {
7469 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7470 UNIQUE_ID_NOT_BY_CARD;
7471 PRINT_WARN("couldn't get a unique id from the card on device "
7472 "%s (result=x%x), using default id. ipv6 "
7473 "autoconfig on other lpars may lead to duplicate "
7474 "ip addresses. please use manually "
7475 "configured ones.\n",
7476 CARD_BUS_ID(card), cmd->hdr.return_code);
7477 }
7478 return 0;
7479}
7480#endif
7481
7482static int
7483qeth_put_unique_id(struct qeth_card *card)
7484{
7485
7486 int rc = 0;
7487#ifdef CONFIG_QETH_IPV6
7488 struct qeth_cmd_buffer *iob;
7489 struct qeth_ipa_cmd *cmd;
7490
7491 QETH_DBF_TEXT(trace,2,"puniqeid");
7492
7493 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7494 UNIQUE_ID_NOT_BY_CARD)
7495 return -1;
7496 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7497 QETH_PROT_IPV6);
7498 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7499 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7500 card->info.unique_id;
7501 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7502 card->dev->dev_addr, OSA_ADDR_LEN);
7503 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7504#else
7505 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7506 UNIQUE_ID_NOT_BY_CARD;
7507#endif
7508 return rc;
7509}
7510
7511/**
7512 * Clear IP List
7513 */
7514static void
7515qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7516{
7517 struct qeth_ipaddr *addr, *tmp;
7518 unsigned long flags;
7519
7520 QETH_DBF_TEXT(trace,4,"clearip");
7521 spin_lock_irqsave(&card->ip_lock, flags);
7522 /* clear todo list */
7523 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7524 list_del(&addr->entry);
7525 kfree(addr);
7526 }
7527
7528 while (!list_empty(&card->ip_list)) {
7529 addr = list_entry(card->ip_list.next,
7530 struct qeth_ipaddr, entry);
7531 list_del_init(&addr->entry);
7532 if (clean) {
7533 spin_unlock_irqrestore(&card->ip_lock, flags);
7534 qeth_deregister_addr_entry(card, addr);
7535 spin_lock_irqsave(&card->ip_lock, flags);
7536 }
7537 if (!recover || addr->is_multicast) {
7538 kfree(addr);
7539 continue;
7540 }
7541 list_add_tail(&addr->entry, card->ip_tbd_list);
7542 }
7543 spin_unlock_irqrestore(&card->ip_lock, flags);
7544}
7545
7546static void
7547qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7548 int clear_start_mask)
7549{
7550 unsigned long flags;
7551
7552 spin_lock_irqsave(&card->thread_mask_lock, flags);
7553 card->thread_allowed_mask = threads;
7554 if (clear_start_mask)
7555 card->thread_start_mask &= threads;
7556 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7557 wake_up(&card->wait_q);
7558}
7559
7560static inline int
7561qeth_threads_running(struct qeth_card *card, unsigned long threads)
7562{
7563 unsigned long flags;
7564 int rc = 0;
7565
7566 spin_lock_irqsave(&card->thread_mask_lock, flags);
7567 rc = (card->thread_running_mask & threads);
7568 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7569 return rc;
7570}
7571
7572static int
7573qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7574{
7575 return wait_event_interruptible(card->wait_q,
7576 qeth_threads_running(card, threads) == 0);
7577}
7578
7579static int
05e08a2a 7580qeth_stop_card(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7581{
7582 int rc = 0;
7583
7584 QETH_DBF_TEXT(setup ,2,"stopcard");
7585 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7586
7587 qeth_set_allowed_threads(card, 0, 1);
7588 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7589 return -ERESTARTSYS;
7590 if (card->read.state == CH_STATE_UP &&
7591 card->write.state == CH_STATE_UP &&
7592 (card->state == CARD_STATE_UP)) {
e82b0f2c 7593 if (recovery_mode &&
500f83ab 7594 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7595 qeth_stop(card->dev);
7596 } else {
7597 rtnl_lock();
7598 dev_close(card->dev);
7599 rtnl_unlock();
7600 }
1da177e4
LT		 7601 if (!card->use_hard_stop) {
7602 __u8 *mac = &card->dev->dev_addr[0];
7603 rc = qeth_layer2_send_delmac(card, mac);
7604 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7605 if ((rc = qeth_send_stoplan(card)))
7606 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7607 }
7608 card->state = CARD_STATE_SOFTSETUP;
7609 }
7610 if (card->state == CARD_STATE_SOFTSETUP) {
7611#ifdef CONFIG_QETH_VLAN
7612 if (card->options.layer2)
7613 qeth_layer2_process_vlans(card, 1);
7614#endif
7615 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7616 qeth_clear_ipacmd_list(card);
7617 card->state = CARD_STATE_HARDSETUP;
7618 }
7619 if (card->state == CARD_STATE_HARDSETUP) {
7620 if ((!card->use_hard_stop) &&
7621 (!card->options.layer2))
7622 if ((rc = qeth_put_unique_id(card)))
7623 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7624 qeth_qdio_clear_card(card, 0);
7625 qeth_clear_qdio_buffers(card);
7626 qeth_clear_working_pool_list(card);
7627 card->state = CARD_STATE_DOWN;
7628 }
7629 if (card->state == CARD_STATE_DOWN) {
7630 qeth_clear_cmd_buffers(&card->read);
7631 qeth_clear_cmd_buffers(&card->write);
7632 }
7633 card->use_hard_stop = 0;
7634 return rc;
7635}
7636
7637
7638static int
7639qeth_get_unique_id(struct qeth_card *card)
7640{
7641 int rc = 0;
7642#ifdef CONFIG_QETH_IPV6
7643 struct qeth_cmd_buffer *iob;
7644 struct qeth_ipa_cmd *cmd;
7645
7646 QETH_DBF_TEXT(setup, 2, "guniqeid");
7647
7648 if (!qeth_is_supported(card,IPA_IPV6)) {
7649 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7650 UNIQUE_ID_NOT_BY_CARD;
7651 return 0;
7652 }
7653
7654 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7655 QETH_PROT_IPV6);
7656 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7657 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7658 card->info.unique_id;
7659
7660 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7661#else
7662 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7663 UNIQUE_ID_NOT_BY_CARD;
7664#endif
7665 return rc;
7666}
7667static void
7668qeth_print_status_with_portname(struct qeth_card *card)
7669{
7670 char dbf_text[15];
7671 int i;
7672
7673 sprintf(dbf_text, "%s", card->info.portname + 1);
7674 for (i = 0; i < 8; i++)
7675 dbf_text[i] =
7676 (char) _ebcasc[(__u8) dbf_text[i]];
7677 dbf_text[8] = 0;
7678 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7679 "with link type %s (portname: %s)\n",
7680 CARD_RDEV_ID(card),
7681 CARD_WDEV_ID(card),
7682 CARD_DDEV_ID(card),
7683 qeth_get_cardname(card),
7684 (card->info.mcl_level[0]) ? " (level: " : "",
7685 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7686 (card->info.mcl_level[0]) ? ")" : "",
7687 qeth_get_cardname_short(card),
7688 dbf_text);
7689
7690}
7691
7692static void
7693qeth_print_status_no_portname(struct qeth_card *card)
7694{
7695 if (card->info.portname[0])
7696 printk("qeth: Device %s/%s/%s is a%s "
7697 "card%s%s%s\nwith link type %s "
7698 "(no portname needed by interface).\n",
7699 CARD_RDEV_ID(card),
7700 CARD_WDEV_ID(card),
7701 CARD_DDEV_ID(card),
7702 qeth_get_cardname(card),
7703 (card->info.mcl_level[0]) ? " (level: " : "",
7704 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7705 (card->info.mcl_level[0]) ? ")" : "",
7706 qeth_get_cardname_short(card));
7707 else
7708 printk("qeth: Device %s/%s/%s is a%s "
7709 "card%s%s%s\nwith link type %s.\n",
7710 CARD_RDEV_ID(card),
7711 CARD_WDEV_ID(card),
7712 CARD_DDEV_ID(card),
7713 qeth_get_cardname(card),
7714 (card->info.mcl_level[0]) ? " (level: " : "",
7715 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7716 (card->info.mcl_level[0]) ? ")" : "",
7717 qeth_get_cardname_short(card));
7718}
7719
7720static void
7721qeth_print_status_message(struct qeth_card *card)
7722{
7723 switch (card->info.type) {
7724 case QETH_CARD_TYPE_OSAE:
7725 /* VM will use a non-zero first character
7726 * to indicate a HiperSockets like reporting
7727 * of the level OSA sets the first character to zero
7728 * */
7729 if (!card->info.mcl_level[0]) {
7730 sprintf(card->info.mcl_level,"%02x%02x",
7731 card->info.mcl_level[2],
7732 card->info.mcl_level[3]);
7733
7734 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7735 break;
7736 }
7737 /* fallthrough */
7738 case QETH_CARD_TYPE_IQD:
7739 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7740 card->info.mcl_level[0]];
7741 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7742 card->info.mcl_level[1]];
7743 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7744 card->info.mcl_level[2]];
7745 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7746 card->info.mcl_level[3]];
7747 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7748 break;
7749 default:
7750 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7751 }
7752 if (card->info.portname_required)
7753 qeth_print_status_with_portname(card);
7754 else
7755 qeth_print_status_no_portname(card);
7756}
7757
7758static int
7759qeth_register_netdev(struct qeth_card *card)
7760{
7761 QETH_DBF_TEXT(setup, 3, "regnetd");
e82b0f2c 7762 if (card->dev->reg_state != NETREG_UNINITIALIZED)
1da177e4 7763 return 0;
1da177e4
LT		 7764 /* sysfs magic */
7765 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7766 return register_netdev(card->dev);
7767}
7768
7769static void
05e08a2a 7770qeth_start_again(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7771{
7772 QETH_DBF_TEXT(setup ,2, "startag");
7773
e82b0f2c 7774 if (recovery_mode &&
500f83ab 7775 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7776 qeth_open(card->dev);
7777 } else {
7778 rtnl_lock();
7779 dev_open(card->dev);
7780 rtnl_unlock();
7781 }
1da177e4
LT		 7782 /* this also sets saved unicast addresses */
7783 qeth_set_multicast_list(card->dev);
7784}
7785
7786
7787/* Layer 2 specific stuff */
7788#define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7789 if (card->options.option == value) { \
7790 PRINT_ERR("%s not supported with layer 2 " \
7791 "functionality, ignoring option on read" \
7792 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7793 card->options.option = reset_value; \
7794 }
7795#define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7796 if (card->options.option != value) { \
7797 PRINT_ERR("%s not supported with layer 2 " \
7798 "functionality, ignoring option on read" \
7799 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7800 card->options.option = reset_value; \
7801 }
7802
7803
7804static void qeth_make_parameters_consistent(struct qeth_card *card)
7805{
7806
500f83ab
UB		 7807 if (card->options.layer2 == 0)
7808 return;
7809 if (card->info.type == QETH_CARD_TYPE_OSN)
7810 return;
7811 if (card->info.type == QETH_CARD_TYPE_IQD) {
7812 PRINT_ERR("Device %s does not support layer 2 functionality." \
7813 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7814 card->options.layer2 = 0;
7815 return;
7816 }
7817 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7818 "Routing options are");
1da177e4 7819#ifdef CONFIG_QETH_IPV6
500f83ab
UB		 7820 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7821 "Routing options are");
1da177e4 7822#endif
500f83ab
UB		 7823 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7824 QETH_CHECKSUM_DEFAULT,
7825 "Checksumming options are");
7826 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7827 QETH_TR_BROADCAST_ALLRINGS,
7828 "Broadcast mode options are");
7829 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7830 QETH_TR_MACADDR_NONCANONICAL,
7831 "Canonical MAC addr options are");
7832 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7833 "Broadcast faking options are");
7834 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7835 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7836 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
1da177e4
LT		 7837}
7838
7839
7840static int
05e08a2a 7841__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1da177e4
LT		 7842{
7843 struct qeth_card *card = gdev->dev.driver_data;
7844 int rc = 0;
7845 enum qeth_card_states recover_flag;
7846
7847 BUG_ON(!card);
7848 QETH_DBF_TEXT(setup ,2, "setonlin");
7849 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7850
7851 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7852 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7853 PRINT_WARN("set_online of card %s interrupted by user!\n",
7854 CARD_BUS_ID(card));
7855 return -ERESTARTSYS;
7856 }
7857
7858 recover_flag = card->state;
7859 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7860 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7861 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7862 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7863 return -EIO;
7864 }
7865
500f83ab 7866 qeth_make_parameters_consistent(card);
1da177e4
LT		 7867
7868 if ((rc = qeth_hardsetup_card(card))){
7869 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7870 goto out_remove;
7871 }
7872 card->state = CARD_STATE_HARDSETUP;
7873
7874 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7875 rc = qeth_get_unique_id(card);
7876
7877 if (rc && card->options.layer2 == 0) {
7878 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7879 goto out_remove;
7880 }
7881 qeth_print_status_message(card);
7882 if ((rc = qeth_register_netdev(card))){
7883 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7884 goto out_remove;
7885 }
7886 if ((rc = qeth_softsetup_card(card))){
7887 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7888 goto out_remove;
7889 }
1da177e4
LT		 7890
7891 if ((rc = qeth_init_qdio_queues(card))){
7892 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7893 goto out_remove;
7894 }
09d2d38a 7895 card->state = CARD_STATE_SOFTSETUP;
4965e97f
FP		 7896 netif_carrier_on(card->dev);
7897
1da177e4
LT		 7898 qeth_set_allowed_threads(card, 0xffffffff, 0);
7899 if (recover_flag == CARD_STATE_RECOVER)
05e08a2a 7900 qeth_start_again(card, recovery_mode);
1da177e4
LT		 7901 qeth_notify_processes();
7902 return 0;
7903out_remove:
7904 card->use_hard_stop = 1;
05e08a2a 7905 qeth_stop_card(card, 0);
1da177e4
LT		 7906 ccw_device_set_offline(CARD_DDEV(card));
7907 ccw_device_set_offline(CARD_WDEV(card));
7908 ccw_device_set_offline(CARD_RDEV(card));
7909 if (recover_flag == CARD_STATE_RECOVER)
7910 card->state = CARD_STATE_RECOVER;
7911 else
7912 card->state = CARD_STATE_DOWN;
7913 return -ENODEV;
7914}
7915
05e08a2a
FP		 7916static int
7917qeth_set_online(struct ccwgroup_device *gdev)
7918{
7919 return __qeth_set_online(gdev, 0);
7920}
7921
1da177e4 7922static struct ccw_device_id qeth_ids[] = {
d2c993d8
HC		 7923 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7924 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7925 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
1da177e4
LT		 7926 {},
7927};
7928MODULE_DEVICE_TABLE(ccw, qeth_ids);
7929
7930struct device *qeth_root_dev = NULL;
7931
7932struct ccwgroup_driver qeth_ccwgroup_driver = {
7933 .owner = THIS_MODULE,
7934 .name = "qeth",
7935 .driver_id = 0xD8C5E3C8,
7936 .probe = qeth_probe_device,
7937 .remove = qeth_remove_device,
7938 .set_online = qeth_set_online,
7939 .set_offline = qeth_set_offline,
7940};
7941
7942struct ccw_driver qeth_ccw_driver = {
7943 .name = "qeth",
7944 .ids = qeth_ids,
7945 .probe = ccwgroup_probe_ccwdev,
7946 .remove = ccwgroup_remove_ccwdev,
7947};
7948
7949
7950static void
7951qeth_unregister_dbf_views(void)
7952{
7953 if (qeth_dbf_setup)
7954 debug_unregister(qeth_dbf_setup);
7955 if (qeth_dbf_qerr)
7956 debug_unregister(qeth_dbf_qerr);
7957 if (qeth_dbf_sense)
7958 debug_unregister(qeth_dbf_sense);
7959 if (qeth_dbf_misc)
7960 debug_unregister(qeth_dbf_misc);
7961 if (qeth_dbf_data)
7962 debug_unregister(qeth_dbf_data);
7963 if (qeth_dbf_control)
7964 debug_unregister(qeth_dbf_control);
7965 if (qeth_dbf_trace)
7966 debug_unregister(qeth_dbf_trace);
7967}
7968static int
7969qeth_register_dbf_views(void)
7970{
7971 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
66a464db 7972 QETH_DBF_SETUP_PAGES,
1da177e4
LT		 7973 QETH_DBF_SETUP_NR_AREAS,
7974 QETH_DBF_SETUP_LEN);
7975 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
66a464db 7976 QETH_DBF_MISC_PAGES,
1da177e4
LT		 7977 QETH_DBF_MISC_NR_AREAS,
7978 QETH_DBF_MISC_LEN);
7979 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
66a464db 7980 QETH_DBF_DATA_PAGES,
1da177e4
LT		 7981 QETH_DBF_DATA_NR_AREAS,
7982 QETH_DBF_DATA_LEN);
7983 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
66a464db 7984 QETH_DBF_CONTROL_PAGES,
1da177e4
LT		 7985 QETH_DBF_CONTROL_NR_AREAS,
7986 QETH_DBF_CONTROL_LEN);
7987 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
66a464db 7988 QETH_DBF_SENSE_PAGES,
1da177e4
LT		 7989 QETH_DBF_SENSE_NR_AREAS,
7990 QETH_DBF_SENSE_LEN);
7991 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
66a464db 7992 QETH_DBF_QERR_PAGES,
1da177e4
LT		 7993 QETH_DBF_QERR_NR_AREAS,
7994 QETH_DBF_QERR_LEN);
7995 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
66a464db 7996 QETH_DBF_TRACE_PAGES,
1da177e4
LT		 7997 QETH_DBF_TRACE_NR_AREAS,
7998 QETH_DBF_TRACE_LEN);
7999
8000 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
8001 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
8002 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
8003 (qeth_dbf_trace == NULL)) {
8004 qeth_unregister_dbf_views();
8005 return -ENOMEM;
8006 }
8007 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8008 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8009
8010 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8011 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8012
8013 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8014 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8015
8016 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8017 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8018
8019 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8020 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8021
8022 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8023 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8024
8025 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8026 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8027
8028 return 0;
8029}
8030
8031#ifdef CONFIG_QETH_IPV6
8032extern struct neigh_table arp_tbl;
8033static struct neigh_ops *arp_direct_ops;
8034static int (*qeth_old_arp_constructor) (struct neighbour *);
8035
8036static struct neigh_ops arp_direct_ops_template = {
8037 .family = AF_INET,
1da177e4
LT		 8038 .solicit = NULL,
8039 .error_report = NULL,
8040 .output = dev_queue_xmit,
8041 .connected_output = dev_queue_xmit,
8042 .hh_output = dev_queue_xmit,
8043 .queue_xmit = dev_queue_xmit
8044};
8045
8046static int
8047qeth_arp_constructor(struct neighbour *neigh)
8048{
8049 struct net_device *dev = neigh->dev;
8050 struct in_device *in_dev;
8051 struct neigh_parms *parms;
8052 struct qeth_card *card;
8053
8054 card = qeth_get_card_from_dev(dev);
8055 if (card == NULL)
8056 goto out;
8057 if((card->options.layer2) ||
8058 (card->dev->hard_header == qeth_fake_header))
8059 goto out;
8060
8061 rcu_read_lock();
e5ed6399 8062 in_dev = __in_dev_get_rcu(dev);
1da177e4
LT		 8063 if (in_dev == NULL) {
8064 rcu_read_unlock();
8065 return -EINVAL;
8066 }
8067
8068 parms = in_dev->arp_parms;
8069 __neigh_parms_put(neigh->parms);
8070 neigh->parms = neigh_parms_clone(parms);
8071 rcu_read_unlock();
8072
fd683222 8073 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
1da177e4
LT		 8074 neigh->nud_state = NUD_NOARP;
8075 neigh->ops = arp_direct_ops;
8076 neigh->output = neigh->ops->queue_xmit;
8077 return 0;
8078out:
8079 return qeth_old_arp_constructor(neigh);
8080}
8081#endif /*CONFIG_QETH_IPV6*/
8082
8083/*
8084 * IP address takeover related functions
8085 */
8086static void
8087qeth_clear_ipato_list(struct qeth_card *card)
8088{
8089 struct qeth_ipato_entry *ipatoe, *tmp;
8090 unsigned long flags;
8091
8092 spin_lock_irqsave(&card->ip_lock, flags);
8093 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8094 list_del(&ipatoe->entry);
8095 kfree(ipatoe);
8096 }
8097 spin_unlock_irqrestore(&card->ip_lock, flags);
8098}
8099
8100int
8101qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8102{
8103 struct qeth_ipato_entry *ipatoe;
8104 unsigned long flags;
8105 int rc = 0;
8106
8107 QETH_DBF_TEXT(trace, 2, "addipato");
8108 spin_lock_irqsave(&card->ip_lock, flags);
8109 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8110 if (ipatoe->proto != new->proto)
8111 continue;
8112 if (!memcmp(ipatoe->addr, new->addr,
8113 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8114 (ipatoe->mask_bits == new->mask_bits)){
8115 PRINT_WARN("ipato entry already exists!\n");
8116 rc = -EEXIST;
8117 break;
8118 }
8119 }
8120 if (!rc) {
8121 list_add_tail(&new->entry, &card->ipato.entries);
8122 }
8123 spin_unlock_irqrestore(&card->ip_lock, flags);
8124 return rc;
8125}
8126
8127void
8128qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8129 u8 *addr, int mask_bits)
8130{
8131 struct qeth_ipato_entry *ipatoe, *tmp;
8132 unsigned long flags;
8133
8134 QETH_DBF_TEXT(trace, 2, "delipato");
8135 spin_lock_irqsave(&card->ip_lock, flags);
8136 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8137 if (ipatoe->proto != proto)
8138 continue;
8139 if (!memcmp(ipatoe->addr, addr,
8140 (proto == QETH_PROT_IPV4)? 4:16) &&
8141 (ipatoe->mask_bits == mask_bits)){
8142 list_del(&ipatoe->entry);
8143 kfree(ipatoe);
8144 }
8145 }
8146 spin_unlock_irqrestore(&card->ip_lock, flags);
8147}
8148
8149static inline void
8150qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8151{
8152 int i, j;
8153 u8 octet;
8154
8155 for (i = 0; i < len; ++i){
8156 octet = addr[i];
8157 for (j = 7; j >= 0; --j){
8158 bits[i*8 + j] = octet & 1;
8159 octet >>= 1;
8160 }
8161 }
8162}
8163
8164static int
8165qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8166{
8167 struct qeth_ipato_entry *ipatoe;
8168 u8 addr_bits[128] = {0, };
8169 u8 ipatoe_bits[128] = {0, };
8170 int rc = 0;
8171
8172 if (!card->ipato.enabled)
8173 return 0;
8174
8175 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8176 (addr->proto == QETH_PROT_IPV4)? 4:16);
8177 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8178 if (addr->proto != ipatoe->proto)
8179 continue;
8180 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8181 (ipatoe->proto==QETH_PROT_IPV4) ?
8182 4:16);
8183 if (addr->proto == QETH_PROT_IPV4)
8184 rc = !memcmp(addr_bits, ipatoe_bits,
8185 min(32, ipatoe->mask_bits));
8186 else
8187 rc = !memcmp(addr_bits, ipatoe_bits,
8188 min(128, ipatoe->mask_bits));
8189 if (rc)
8190 break;
8191 }
8192 /* invert? */
8193 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8194 rc = !rc;
8195 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8196 rc = !rc;
8197
8198 return rc;
8199}
8200
8201/*
8202 * VIPA related functions
8203 */
8204int
8205qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8206 const u8 *addr)
8207{
8208 struct qeth_ipaddr *ipaddr;
8209 unsigned long flags;
8210 int rc = 0;
8211
8212 ipaddr = qeth_get_addr_buffer(proto);
8213 if (ipaddr){
8214 if (proto == QETH_PROT_IPV4){
8215 QETH_DBF_TEXT(trace, 2, "addvipa4");
8216 memcpy(&ipaddr->u.a4.addr, addr, 4);
8217 ipaddr->u.a4.mask = 0;
8218#ifdef CONFIG_QETH_IPV6
8219 } else if (proto == QETH_PROT_IPV6){
8220 QETH_DBF_TEXT(trace, 2, "addvipa6");
8221 memcpy(&ipaddr->u.a6.addr, addr, 16);
8222 ipaddr->u.a6.pfxlen = 0;
8223#endif
8224 }
8225 ipaddr->type = QETH_IP_TYPE_VIPA;
8226 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8227 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8228 } else
8229 return -ENOMEM;
8230 spin_lock_irqsave(&card->ip_lock, flags);
8231 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8232 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8233 rc = -EEXIST;
8234 spin_unlock_irqrestore(&card->ip_lock, flags);
8235 if (rc){
8236 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8237 return rc;
8238 }
8239 if (!qeth_add_ip(card, ipaddr))
8240 kfree(ipaddr);
8241 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8242 schedule_work(&card->kernel_thread_starter);
8243 return rc;
8244}
8245
8246void
8247qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8248 const u8 *addr)
8249{
8250 struct qeth_ipaddr *ipaddr;
8251
8252 ipaddr = qeth_get_addr_buffer(proto);
8253 if (ipaddr){
8254 if (proto == QETH_PROT_IPV4){
8255 QETH_DBF_TEXT(trace, 2, "delvipa4");
8256 memcpy(&ipaddr->u.a4.addr, addr, 4);
8257 ipaddr->u.a4.mask = 0;
8258#ifdef CONFIG_QETH_IPV6
8259 } else if (proto == QETH_PROT_IPV6){
8260 QETH_DBF_TEXT(trace, 2, "delvipa6");
8261 memcpy(&ipaddr->u.a6.addr, addr, 16);
8262 ipaddr->u.a6.pfxlen = 0;
8263#endif
8264 }
8265 ipaddr->type = QETH_IP_TYPE_VIPA;
8266 } else
8267 return;
8268 if (!qeth_delete_ip(card, ipaddr))
8269 kfree(ipaddr);
8270 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8271 schedule_work(&card->kernel_thread_starter);
8272}
8273
8274/*
8275 * proxy ARP related functions
8276 */
8277int
8278qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8279 const u8 *addr)
8280{
8281 struct qeth_ipaddr *ipaddr;
8282 unsigned long flags;
8283 int rc = 0;
8284
8285 ipaddr = qeth_get_addr_buffer(proto);
8286 if (ipaddr){
8287 if (proto == QETH_PROT_IPV4){
8288 QETH_DBF_TEXT(trace, 2, "addrxip4");
8289 memcpy(&ipaddr->u.a4.addr, addr, 4);
8290 ipaddr->u.a4.mask = 0;
8291#ifdef CONFIG_QETH_IPV6
8292 } else if (proto == QETH_PROT_IPV6){
8293 QETH_DBF_TEXT(trace, 2, "addrxip6");
8294 memcpy(&ipaddr->u.a6.addr, addr, 16);
8295 ipaddr->u.a6.pfxlen = 0;
8296#endif
8297 }
8298 ipaddr->type = QETH_IP_TYPE_RXIP;
8299 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8300 ipaddr->del_flags = 0;
8301 } else
8302 return -ENOMEM;
8303 spin_lock_irqsave(&card->ip_lock, flags);
8304 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8305 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8306 rc = -EEXIST;
8307 spin_unlock_irqrestore(&card->ip_lock, flags);
8308 if (rc){
8309 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8310 return rc;
8311 }
8312 if (!qeth_add_ip(card, ipaddr))
8313 kfree(ipaddr);
8314 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8315 schedule_work(&card->kernel_thread_starter);
8316 return 0;
8317}
8318
8319void
8320qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8321 const u8 *addr)
8322{
8323 struct qeth_ipaddr *ipaddr;
8324
8325 ipaddr = qeth_get_addr_buffer(proto);
8326 if (ipaddr){
8327 if (proto == QETH_PROT_IPV4){
8328 QETH_DBF_TEXT(trace, 2, "addrxip4");
8329 memcpy(&ipaddr->u.a4.addr, addr, 4);
8330 ipaddr->u.a4.mask = 0;
8331#ifdef CONFIG_QETH_IPV6
8332 } else if (proto == QETH_PROT_IPV6){
8333 QETH_DBF_TEXT(trace, 2, "addrxip6");
8334 memcpy(&ipaddr->u.a6.addr, addr, 16);
8335 ipaddr->u.a6.pfxlen = 0;
8336#endif
8337 }
8338 ipaddr->type = QETH_IP_TYPE_RXIP;
8339 } else
8340 return;
8341 if (!qeth_delete_ip(card, ipaddr))
8342 kfree(ipaddr);
8343 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8344 schedule_work(&card->kernel_thread_starter);
8345}
8346
8347/**
8348 * IP event handler
8349 */
8350static int
8351qeth_ip_event(struct notifier_block *this,
8352 unsigned long event,void *ptr)
8353{
8354 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8355 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8356 struct qeth_ipaddr *addr;
8357 struct qeth_card *card;
8358
8359 QETH_DBF_TEXT(trace,3,"ipevent");
8360 card = qeth_get_card_from_dev(dev);
8361 if (!card)
8362 return NOTIFY_DONE;
8363 if (card->options.layer2)
8364 return NOTIFY_DONE;
8365
8366 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8367 if (addr != NULL) {
8368 addr->u.a4.addr = ifa->ifa_address;
8369 addr->u.a4.mask = ifa->ifa_mask;
8370 addr->type = QETH_IP_TYPE_NORMAL;
8371 } else
8372 goto out;
8373
8374 switch(event) {
8375 case NETDEV_UP:
8376 if (!qeth_add_ip(card, addr))
8377 kfree(addr);
8378 break;
8379 case NETDEV_DOWN:
8380 if (!qeth_delete_ip(card, addr))
8381 kfree(addr);
8382 break;
8383 default:
8384 break;
8385 }
8386 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8387 schedule_work(&card->kernel_thread_starter);
8388out:
8389 return NOTIFY_DONE;
8390}
8391
8392static struct notifier_block qeth_ip_notifier = {
8393 qeth_ip_event,
d2c993d8 8394 NULL,
1da177e4
LT		 8395};
8396
8397#ifdef CONFIG_QETH_IPV6
8398/**
8399 * IPv6 event handler
8400 */
8401static int
8402qeth_ip6_event(struct notifier_block *this,
8403 unsigned long event,void *ptr)
8404{
8405
8406 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8407 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8408 struct qeth_ipaddr *addr;
8409 struct qeth_card *card;
8410
8411 QETH_DBF_TEXT(trace,3,"ip6event");
8412
8413 card = qeth_get_card_from_dev(dev);
8414 if (!card)
8415 return NOTIFY_DONE;
8416 if (!qeth_is_supported(card, IPA_IPV6))
8417 return NOTIFY_DONE;
8418
8419 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8420 if (addr != NULL) {
8421 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8422 addr->u.a6.pfxlen = ifa->prefix_len;
8423 addr->type = QETH_IP_TYPE_NORMAL;
8424 } else
8425 goto out;
8426
8427 switch(event) {
8428 case NETDEV_UP:
8429 if (!qeth_add_ip(card, addr))
8430 kfree(addr);
8431 break;
8432 case NETDEV_DOWN:
8433 if (!qeth_delete_ip(card, addr))
8434 kfree(addr);
8435 break;
8436 default:
8437 break;
8438 }
8439 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8440 schedule_work(&card->kernel_thread_starter);
8441out:
8442 return NOTIFY_DONE;
8443}
8444
8445static struct notifier_block qeth_ip6_notifier = {
8446 qeth_ip6_event,
d2c993d8 8447 NULL,
1da177e4
LT		 8448};
8449#endif
8450
8451static int
66aea23f 8452__qeth_reboot_event_card(struct device *dev, void *data)
1da177e4 8453{
1da177e4
LT		 8454 struct qeth_card *card;
8455
66aea23f
CH		 8456 card = (struct qeth_card *) dev->driver_data;
8457 qeth_clear_ip_list(card, 0, 0);
8458 qeth_qdio_clear_card(card, 0);
8459 return 0;
8460}
8461
8462static int
8463qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8464{
d7cf0d57 8465 int ret;
66aea23f 8466
d7cf0d57
HC		 8467 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8468 __qeth_reboot_event_card);
8469 return ret ? NOTIFY_BAD : NOTIFY_DONE;
1da177e4
LT		 8470}
8471
8472
8473static struct notifier_block qeth_reboot_notifier = {
8474 qeth_reboot_event,
d2c993d8 8475 NULL,
1da177e4
LT		 8476};
8477
8478static int
8479qeth_register_notifiers(void)
8480{
8481 int r;
8482
8483 QETH_DBF_TEXT(trace,5,"regnotif");
8484 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8485 return r;
8486 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8487 goto out_reboot;
8488#ifdef CONFIG_QETH_IPV6
8489 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8490 goto out_ipv4;
8491#endif
8492 return 0;
8493
8494#ifdef CONFIG_QETH_IPV6
8495out_ipv4:
8496 unregister_inetaddr_notifier(&qeth_ip_notifier);
8497#endif
8498out_reboot:
8499 unregister_reboot_notifier(&qeth_reboot_notifier);
8500 return r;
8501}
8502
8503/**
8504 * unregister all event notifiers
8505 */
8506static void
8507qeth_unregister_notifiers(void)
8508{
8509
8510 QETH_DBF_TEXT(trace,5,"unregnot");
8511 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8512 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8513#ifdef CONFIG_QETH_IPV6
8514 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8515#endif /* QETH_IPV6 */
8516
8517}
8518
8519#ifdef CONFIG_QETH_IPV6
8520static int
8521qeth_ipv6_init(void)
8522{
8523 qeth_old_arp_constructor = arp_tbl.constructor;
3d8f3f3c 8524 write_lock_bh(&arp_tbl.lock);
1da177e4 8525 arp_tbl.constructor = qeth_arp_constructor;
3d8f3f3c 8526 write_unlock_bh(&arp_tbl.lock);
1da177e4
LT		 8527
8528 arp_direct_ops = (struct neigh_ops*)
8529 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8530 if (!arp_direct_ops)
8531 return -ENOMEM;
8532
8533 memcpy(arp_direct_ops, &arp_direct_ops_template,
8534 sizeof(struct neigh_ops));
8535
8536 return 0;
8537}
8538
8539static void
8540qeth_ipv6_uninit(void)
8541{
3d8f3f3c 8542 write_lock_bh(&arp_tbl.lock);
1da177e4 8543 arp_tbl.constructor = qeth_old_arp_constructor;
3d8f3f3c 8544 write_unlock_bh(&arp_tbl.lock);
1da177e4
LT		 8545 kfree(arp_direct_ops);
8546}
8547#endif /* CONFIG_QETH_IPV6 */
8548
8549static void
8550qeth_sysfs_unregister(void)
8551{
8b98a37c 8552 s390_root_dev_unregister(qeth_root_dev);
1da177e4
LT		 8553 qeth_remove_driver_attributes();
8554 ccw_driver_unregister(&qeth_ccw_driver);
8555 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
1da177e4 8556}
8b98a37c 8557
1da177e4
LT		 8558/**
8559 * register qeth at sysfs
8560 */
8561static int
8562qeth_sysfs_register(void)
8563{
8b98a37c 8564 int rc;
1da177e4
LT		 8565
8566 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8567 if (rc)
8b98a37c
FP		 8568 goto out;
8569
1da177e4
LT		 8570 rc = ccw_driver_register(&qeth_ccw_driver);
8571 if (rc)
8b98a37c
FP		 8572 goto out_ccw_driver;
8573
1da177e4
LT		 8574 rc = qeth_create_driver_attributes();
8575 if (rc)
8b98a37c
FP		 8576 goto out_qeth_attr;
8577
1da177e4 8578 qeth_root_dev = s390_root_dev_register("qeth");
8b98a37c
FP		 8579 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8580 if (!rc)
8581 goto out;
8582
8583 qeth_remove_driver_attributes();
8584out_qeth_attr:
8585 ccw_driver_unregister(&qeth_ccw_driver);
8586out_ccw_driver:
8587 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8588out:
8589 return rc;
1da177e4
LT		 8590}
8591
8592/***
8593 * init function
8594 */
8595static int __init
8596qeth_init(void)
8597{
8b98a37c 8598 int rc;
1da177e4 8599
e018ba1f 8600 PRINT_INFO("loading %s\n", version);
1da177e4
LT		 8601
8602 INIT_LIST_HEAD(&qeth_card_list.list);
8603 INIT_LIST_HEAD(&qeth_notify_list);
8604 spin_lock_init(&qeth_notify_lock);
8605 rwlock_init(&qeth_card_list.rwlock);
8606
8b98a37c
FP		 8607 rc = qeth_register_dbf_views();
8608 if (rc)
1da177e4 8609 goto out_err;
8b98a37c
FP		 8610
8611 rc = qeth_sysfs_register();
8612 if (rc)
8613 goto out_dbf;
1da177e4
LT		 8614
8615#ifdef CONFIG_QETH_IPV6
8b98a37c
FP		 8616 rc = qeth_ipv6_init();
8617 if (rc) {
8618 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
1da177e4
LT		 8619 goto out_sysfs;
8620 }
8621#endif /* QETH_IPV6 */
8b98a37c
FP		 8622 rc = qeth_register_notifiers();
8623 if (rc)
1da177e4 8624 goto out_ipv6;
8b98a37c
FP		 8625 rc = qeth_create_procfs_entries();
8626 if (rc)
1da177e4
LT		 8627 goto out_notifiers;
8628
8629 return rc;
8630
8631out_notifiers:
8632 qeth_unregister_notifiers();
8633out_ipv6:
8634#ifdef CONFIG_QETH_IPV6
8635 qeth_ipv6_uninit();
1da177e4 8636out_sysfs:
8b98a37c 8637#endif /* QETH_IPV6 */
1da177e4 8638 qeth_sysfs_unregister();
8b98a37c 8639out_dbf:
1da177e4
LT		 8640 qeth_unregister_dbf_views();
8641out_err:
8b98a37c 8642 PRINT_ERR("Initialization failed with code %d\n", rc);
1da177e4
LT		 8643 return rc;
8644}
8645
8646static void
8647__exit qeth_exit(void)
8648{
8649 struct qeth_card *card, *tmp;
8650 unsigned long flags;
8651
8652 QETH_DBF_TEXT(trace,1, "cleanup.");
8653
8654 /*
8655 * Weed would not need to clean up our devices here, because the
8656 * common device layer calls qeth_remove_device for each device
8657 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8658 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8659 * qeth_remove_device called by the common device layer would otherwise
8660 * do a "hard" shutdown (card->use_hard_stop is set to one in
8661 * qeth_remove_device).
8662 */
8663again:
8664 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8665 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8666 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8667 qeth_set_offline(card->gdev);
8668 qeth_remove_device(card->gdev);
8669 goto again;
8670 }
8671 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8672#ifdef CONFIG_QETH_IPV6
8673 qeth_ipv6_uninit();
8674#endif
8675 qeth_unregister_notifiers();
8676 qeth_remove_procfs_entries();
8677 qeth_sysfs_unregister();
8678 qeth_unregister_dbf_views();
8679 printk("qeth: removed\n");
8680}
8681
500f83ab
UB		 8682EXPORT_SYMBOL(qeth_osn_register);
8683EXPORT_SYMBOL(qeth_osn_deregister);
8684EXPORT_SYMBOL(qeth_osn_assist);
1da177e4
LT		 8685module_init(qeth_init);
8686module_exit(qeth_exit);
1387780f 8687MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
1da177e4
LT		 8688MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8689 "Copyright 2000,2003 IBM Corporation\n");
8690
8691MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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