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[net-next-2.6.git] / drivers / s390 / net / qeth_main.c
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1da177e4 1/*
e018ba1f 2 * linux/drivers/s390/net/qeth_main.c
1da177e4
LT		 3 *
4 * Linux on zSeries OSA Express and HiperSockets support
5 *
6 * Copyright 2000,2003 IBM Corporation
7 *
8 * Author(s): Original Code written by
9 * Utz Bacher (utz.bacher@de.ibm.com)
10 * Rewritten by
1387780f 11 * Frank Pavlic (fpavlic@de.ibm.com) and
1da177e4
LT		 12 * Thomas Spatzier <tspat@de.ibm.com>
13 *
1da177e4
LT		 14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
1da177e4
LT		 29
30#include <linux/config.h>
31#include <linux/module.h>
32#include <linux/moduleparam.h>
33#include <linux/string.h>
34#include <linux/errno.h>
35#include <linux/mm.h>
36#include <linux/ip.h>
37#include <linux/inetdevice.h>
38#include <linux/netdevice.h>
39#include <linux/sched.h>
40#include <linux/workqueue.h>
41#include <linux/kernel.h>
42#include <linux/slab.h>
43#include <linux/interrupt.h>
44#include <linux/tcp.h>
45#include <linux/icmp.h>
46#include <linux/skbuff.h>
47#include <linux/in.h>
48#include <linux/igmp.h>
49#include <linux/init.h>
50#include <linux/reboot.h>
51#include <linux/mii.h>
52#include <linux/rcupdate.h>
53#include <linux/ethtool.h>
54
55#include <net/arp.h>
56#include <net/ip.h>
57#include <net/route.h>
58
59#include <asm/ebcdic.h>
60#include <asm/io.h>
61#include <asm/qeth.h>
62#include <asm/timex.h>
63#include <asm/semaphore.h>
64#include <asm/uaccess.h>
cfb1b555 65#include <asm/s390_rdev.h>
1da177e4
LT		 66
67#include "qeth.h"
68#include "qeth_mpc.h"
69#include "qeth_fs.h"
70#include "qeth_eddp.h"
71#include "qeth_tso.h"
72
1da177e4
LT		 73static const char *version = "qeth S/390 OSA-Express driver";
74
75/**
76 * Debug Facility Stuff
77 */
78static debug_info_t *qeth_dbf_setup = NULL;
79static debug_info_t *qeth_dbf_data = NULL;
80static debug_info_t *qeth_dbf_misc = NULL;
81static debug_info_t *qeth_dbf_control = NULL;
82debug_info_t *qeth_dbf_trace = NULL;
83static debug_info_t *qeth_dbf_sense = NULL;
84static debug_info_t *qeth_dbf_qerr = NULL;
85
86DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
87
88/**
89 * some more definitions and declarations
90 */
91static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
92
93/* list of our cards */
94struct qeth_card_list_struct qeth_card_list;
95/*process list want to be notified*/
96spinlock_t qeth_notify_lock;
97struct list_head qeth_notify_list;
98
99static void qeth_send_control_data_cb(struct qeth_channel *,
100 struct qeth_cmd_buffer *);
101
102/**
103 * here we go with function implementation
104 */
105static void
106qeth_init_qdio_info(struct qeth_card *card);
107
108static int
109qeth_init_qdio_queues(struct qeth_card *card);
110
111static int
112qeth_alloc_qdio_buffers(struct qeth_card *card);
113
114static void
115qeth_free_qdio_buffers(struct qeth_card *);
116
117static void
118qeth_clear_qdio_buffers(struct qeth_card *);
119
120static void
121qeth_clear_ip_list(struct qeth_card *, int, int);
122
123static void
124qeth_clear_ipacmd_list(struct qeth_card *);
125
126static int
127qeth_qdio_clear_card(struct qeth_card *, int);
128
129static void
130qeth_clear_working_pool_list(struct qeth_card *);
131
132static void
133qeth_clear_cmd_buffers(struct qeth_channel *);
134
135static int
136qeth_stop(struct net_device *);
137
138static void
139qeth_clear_ipato_list(struct qeth_card *);
140
141static int
142qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
143
144static void
145qeth_irq_tasklet(unsigned long);
146
147static int
148qeth_set_online(struct ccwgroup_device *);
149
05e08a2a
FP		 150static int
151__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
152
1da177e4
LT		 153static struct qeth_ipaddr *
154qeth_get_addr_buffer(enum qeth_prot_versions);
155
156static void
157qeth_set_multicast_list(struct net_device *);
158
6c951b90
FP		 159static void
160qeth_setadp_promisc_mode(struct qeth_card *);
161
1da177e4
LT		 162static void
163qeth_notify_processes(void)
164{
165 /*notify all registered processes */
166 struct qeth_notify_list_struct *n_entry;
167
168 QETH_DBF_TEXT(trace,3,"procnoti");
169 spin_lock(&qeth_notify_lock);
170 list_for_each_entry(n_entry, &qeth_notify_list, list) {
171 send_sig(n_entry->signum, n_entry->task, 1);
172 }
173 spin_unlock(&qeth_notify_lock);
174
175}
176int
177qeth_notifier_unregister(struct task_struct *p)
178{
179 struct qeth_notify_list_struct *n_entry, *tmp;
180
181 QETH_DBF_TEXT(trace, 2, "notunreg");
182 spin_lock(&qeth_notify_lock);
183 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
184 if (n_entry->task == p) {
185 list_del(&n_entry->list);
186 kfree(n_entry);
187 goto out;
188 }
189 }
190out:
191 spin_unlock(&qeth_notify_lock);
192 return 0;
193}
194int
195qeth_notifier_register(struct task_struct *p, int signum)
196{
197 struct qeth_notify_list_struct *n_entry;
198
1da177e4
LT		 199 /*check first if entry already exists*/
200 spin_lock(&qeth_notify_lock);
201 list_for_each_entry(n_entry, &qeth_notify_list, list) {
202 if (n_entry->task == p) {
203 n_entry->signum = signum;
204 spin_unlock(&qeth_notify_lock);
205 return 0;
206 }
207 }
208 spin_unlock(&qeth_notify_lock);
209
210 n_entry = (struct qeth_notify_list_struct *)
211 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
212 if (!n_entry)
213 return -ENOMEM;
214 n_entry->task = p;
215 n_entry->signum = signum;
216 spin_lock(&qeth_notify_lock);
217 list_add(&n_entry->list,&qeth_notify_list);
218 spin_unlock(&qeth_notify_lock);
219 return 0;
220}
221
222
223/**
224 * free channel command buffers
225 */
226static void
227qeth_clean_channel(struct qeth_channel *channel)
228{
229 int cnt;
230
231 QETH_DBF_TEXT(setup, 2, "freech");
232 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
233 kfree(channel->iob[cnt].data);
234}
235
236/**
237 * free card
238 */
239static void
240qeth_free_card(struct qeth_card *card)
241{
242
243 QETH_DBF_TEXT(setup, 2, "freecrd");
244 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
245 qeth_clean_channel(&card->read);
246 qeth_clean_channel(&card->write);
247 if (card->dev)
248 free_netdev(card->dev);
249 qeth_clear_ip_list(card, 0, 0);
250 qeth_clear_ipato_list(card);
251 kfree(card->ip_tbd_list);
252 qeth_free_qdio_buffers(card);
253 kfree(card);
254}
255
256/**
257 * alloc memory for command buffer per channel
258 */
259static int
260qeth_setup_channel(struct qeth_channel *channel)
261{
262 int cnt;
263
264 QETH_DBF_TEXT(setup, 2, "setupch");
265 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
266 channel->iob[cnt].data = (char *)
267 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
268 if (channel->iob[cnt].data == NULL)
269 break;
270 channel->iob[cnt].state = BUF_STATE_FREE;
271 channel->iob[cnt].channel = channel;
272 channel->iob[cnt].callback = qeth_send_control_data_cb;
273 channel->iob[cnt].rc = 0;
274 }
275 if (cnt < QETH_CMD_BUFFER_NO) {
276 while (cnt-- > 0)
277 kfree(channel->iob[cnt].data);
278 return -ENOMEM;
279 }
280 channel->buf_no = 0;
281 channel->io_buf_no = 0;
282 atomic_set(&channel->irq_pending, 0);
283 spin_lock_init(&channel->iob_lock);
284
285 init_waitqueue_head(&channel->wait_q);
286 channel->irq_tasklet.data = (unsigned long) channel;
287 channel->irq_tasklet.func = qeth_irq_tasklet;
288 return 0;
289}
290
291/**
292 * alloc memory for card structure
293 */
294static struct qeth_card *
295qeth_alloc_card(void)
296{
297 struct qeth_card *card;
298
299 QETH_DBF_TEXT(setup, 2, "alloccrd");
300 card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
301 GFP_DMA|GFP_KERNEL);
302 if (!card)
303 return NULL;
304 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
305 memset(card, 0, sizeof(struct qeth_card));
306 if (qeth_setup_channel(&card->read)) {
307 kfree(card);
308 return NULL;
309 }
310 if (qeth_setup_channel(&card->write)) {
311 qeth_clean_channel(&card->read);
312 kfree(card);
313 return NULL;
314 }
315 return card;
316}
317
318static long
319__qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
320{
321 if (!IS_ERR(irb))
322 return 0;
323
324 switch (PTR_ERR(irb)) {
325 case -EIO:
326 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
327 QETH_DBF_TEXT(trace, 2, "ckirberr");
328 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
329 break;
330 case -ETIMEDOUT:
331 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
332 QETH_DBF_TEXT(trace, 2, "ckirberr");
333 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
334 break;
335 default:
336 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
337 cdev->dev.bus_id);
338 QETH_DBF_TEXT(trace, 2, "ckirberr");
339 QETH_DBF_TEXT(trace, 2, " rc???");
340 }
341 return PTR_ERR(irb);
342}
343
344static int
345qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
346{
347 int dstat,cstat;
348 char *sense;
349
350 sense = (char *) irb->ecw;
351 cstat = irb->scsw.cstat;
352 dstat = irb->scsw.dstat;
353
354 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
355 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
356 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
357 QETH_DBF_TEXT(trace,2, "CGENCHK");
358 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
359 cdev->dev.bus_id, dstat, cstat);
360 HEXDUMP16(WARN, "irb: ", irb);
361 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
362 return 1;
363 }
364
365 if (dstat & DEV_STAT_UNIT_CHECK) {
366 if (sense[SENSE_RESETTING_EVENT_BYTE] &
367 SENSE_RESETTING_EVENT_FLAG) {
368 QETH_DBF_TEXT(trace,2,"REVIND");
369 return 1;
370 }
371 if (sense[SENSE_COMMAND_REJECT_BYTE] &
372 SENSE_COMMAND_REJECT_FLAG) {
373 QETH_DBF_TEXT(trace,2,"CMDREJi");
374 return 0;
375 }
376 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
377 QETH_DBF_TEXT(trace,2,"AFFE");
378 return 1;
379 }
380 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
381 QETH_DBF_TEXT(trace,2,"ZEROSEN");
382 return 0;
383 }
384 QETH_DBF_TEXT(trace,2,"DGENCHK");
385 return 1;
386 }
387 return 0;
388}
389static int qeth_issue_next_read(struct qeth_card *);
390
391/**
392 * interrupt handler
393 */
394static void
395qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
396{
397 int rc;
398 int cstat,dstat;
399 struct qeth_cmd_buffer *buffer;
400 struct qeth_channel *channel;
401 struct qeth_card *card;
402
403 QETH_DBF_TEXT(trace,5,"irq");
404
405 if (__qeth_check_irb_error(cdev, irb))
406 return;
407 cstat = irb->scsw.cstat;
408 dstat = irb->scsw.dstat;
409
410 card = CARD_FROM_CDEV(cdev);
411 if (!card)
412 return;
413
414 if (card->read.ccwdev == cdev){
415 channel = &card->read;
416 QETH_DBF_TEXT(trace,5,"read");
417 } else if (card->write.ccwdev == cdev) {
418 channel = &card->write;
419 QETH_DBF_TEXT(trace,5,"write");
420 } else {
421 channel = &card->data;
422 QETH_DBF_TEXT(trace,5,"data");
423 }
424 atomic_set(&channel->irq_pending, 0);
425
426 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
427 channel->state = CH_STATE_STOPPED;
428
429 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
430 channel->state = CH_STATE_HALTED;
431
432 /*let's wake up immediately on data channel*/
433 if ((channel == &card->data) && (intparm != 0))
434 goto out;
435
436 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
437 QETH_DBF_TEXT(trace, 6, "clrchpar");
438 /* we don't have to handle this further */
439 intparm = 0;
440 }
441 if (intparm == QETH_HALT_CHANNEL_PARM) {
442 QETH_DBF_TEXT(trace, 6, "hltchpar");
443 /* we don't have to handle this further */
444 intparm = 0;
445 }
446 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
447 (dstat & DEV_STAT_UNIT_CHECK) ||
448 (cstat)) {
449 if (irb->esw.esw0.erw.cons) {
450 /* TODO: we should make this s390dbf */
451 PRINT_WARN("sense data available on channel %s.\n",
452 CHANNEL_ID(channel));
453 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
454 HEXDUMP16(WARN,"irb: ",irb);
455 HEXDUMP16(WARN,"sense data: ",irb->ecw);
456 }
457 rc = qeth_get_problem(cdev,irb);
458 if (rc) {
459 qeth_schedule_recovery(card);
460 goto out;
461 }
462 }
463
464 if (intparm) {
465 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
466 buffer->state = BUF_STATE_PROCESSED;
467 }
468 if (channel == &card->data)
469 return;
470
471 if (channel == &card->read &&
472 channel->state == CH_STATE_UP)
473 qeth_issue_next_read(card);
474
475 tasklet_schedule(&channel->irq_tasklet);
476 return;
477out:
478 wake_up(&card->wait_q);
479}
480
481/**
482 * tasklet function scheduled from irq handler
483 */
484static void
485qeth_irq_tasklet(unsigned long data)
486{
487 struct qeth_card *card;
488 struct qeth_channel *channel;
489 struct qeth_cmd_buffer *iob;
490 __u8 index;
491
492 QETH_DBF_TEXT(trace,5,"irqtlet");
493 channel = (struct qeth_channel *) data;
494 iob = channel->iob;
495 index = channel->buf_no;
496 card = CARD_FROM_CDEV(channel->ccwdev);
497 while (iob[index].state == BUF_STATE_PROCESSED) {
498 if (iob[index].callback !=NULL) {
499 iob[index].callback(channel,iob + index);
500 }
501 index = (index + 1) % QETH_CMD_BUFFER_NO;
502 }
503 channel->buf_no = index;
504 wake_up(&card->wait_q);
505}
506
05e08a2a 507static int qeth_stop_card(struct qeth_card *, int);
1da177e4
LT		 508
509static int
05e08a2a 510__qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
1da177e4
LT		 511{
512 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
9123e0d7 513 int rc = 0, rc2 = 0, rc3 = 0;
1da177e4
LT		 514 enum qeth_card_states recover_flag;
515
516 QETH_DBF_TEXT(setup, 3, "setoffl");
517 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
4965e97f 518
66cc5d5a
FP		 519 if (card->dev && netif_carrier_ok(card->dev))
520 netif_carrier_off(card->dev);
1da177e4 521 recover_flag = card->state;
05e08a2a 522 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
1da177e4
LT		 523 PRINT_WARN("Stopping card %s interrupted by user!\n",
524 CARD_BUS_ID(card));
525 return -ERESTARTSYS;
526 }
9123e0d7
UB		 527 rc = ccw_device_set_offline(CARD_DDEV(card));
528 rc2 = ccw_device_set_offline(CARD_WDEV(card));
529 rc3 = ccw_device_set_offline(CARD_RDEV(card));
530 if (!rc)
531 rc = (rc2) ? rc2 : rc3;
532 if (rc)
1da177e4 533 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1da177e4
LT		 534 if (recover_flag == CARD_STATE_UP)
535 card->state = CARD_STATE_RECOVER;
536 qeth_notify_processes();
537 return 0;
538}
539
05e08a2a
FP		 540static int
541qeth_set_offline(struct ccwgroup_device *cgdev)
542{
543 return __qeth_set_offline(cgdev, 0);
544}
545
1da177e4
LT		 546static int
547qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
548
549
550static void
551qeth_remove_device(struct ccwgroup_device *cgdev)
552{
553 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
554 unsigned long flags;
555
556 QETH_DBF_TEXT(setup, 3, "rmdev");
557 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
558
559 if (!card)
560 return;
561
562 if (qeth_wait_for_threads(card, 0xffffffff))
563 return;
564
565 if (cgdev->state == CCWGROUP_ONLINE){
566 card->use_hard_stop = 1;
567 qeth_set_offline(cgdev);
568 }
569 /* remove form our internal list */
570 write_lock_irqsave(&qeth_card_list.rwlock, flags);
571 list_del(&card->list);
572 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
573 if (card->dev)
574 unregister_netdev(card->dev);
575 qeth_remove_device_attributes(&cgdev->dev);
576 qeth_free_card(card);
577 cgdev->dev.driver_data = NULL;
578 put_device(&cgdev->dev);
579}
580
581static int
582qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
583static int
584qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
585
586/**
587 * Add/remove address to/from card's ip list, i.e. try to add or remove
588 * reference to/from an IP address that is already registered on the card.
589 * Returns:
590 * 0 address was on card and its reference count has been adjusted,
591 * but is still > 0, so nothing has to be done
592 * also returns 0 if card was not on card and the todo was to delete
593 * the address -> there is also nothing to be done
594 * 1 address was not on card and the todo is to add it to the card's ip
595 * list
596 * -1 address was on card and its reference count has been decremented
597 * to <= 0 by the todo -> address must be removed from card
598 */
599static int
600__qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
601 struct qeth_ipaddr **__addr)
602{
603 struct qeth_ipaddr *addr;
604 int found = 0;
605
606 list_for_each_entry(addr, &card->ip_list, entry) {
6c88ad2d
FP		 607 if (card->options.layer2) {
608 if ((addr->type == todo->type) &&
609 (memcmp(&addr->mac, &todo->mac,
610 OSA_ADDR_LEN) == 0)) {
611 found = 1;
612 break;
613 }
614 continue;
615 }
1da177e4
LT		 616 if ((addr->proto == QETH_PROT_IPV4) &&
617 (todo->proto == QETH_PROT_IPV4) &&
618 (addr->type == todo->type) &&
619 (addr->u.a4.addr == todo->u.a4.addr) &&
6c88ad2d 620 (addr->u.a4.mask == todo->u.a4.mask)) {
1da177e4
LT		 621 found = 1;
622 break;
623 }
624 if ((addr->proto == QETH_PROT_IPV6) &&
625 (todo->proto == QETH_PROT_IPV6) &&
626 (addr->type == todo->type) &&
627 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
628 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
6c88ad2d 629 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 630 found = 1;
631 break;
632 }
633 }
6c88ad2d 634 if (found) {
1da177e4
LT		 635 addr->users += todo->users;
636 if (addr->users <= 0){
637 *__addr = addr;
638 return -1;
639 } else {
640 /* for VIPA and RXIP limit refcount to 1 */
641 if (addr->type != QETH_IP_TYPE_NORMAL)
642 addr->users = 1;
643 return 0;
644 }
645 }
6c88ad2d 646 if (todo->users > 0) {
1da177e4
LT		 647 /* for VIPA and RXIP limit refcount to 1 */
648 if (todo->type != QETH_IP_TYPE_NORMAL)
649 todo->users = 1;
650 return 1;
651 } else
652 return 0;
653}
654
655static inline int
656__qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
657 int same_type)
658{
659 struct qeth_ipaddr *tmp;
660
661 list_for_each_entry(tmp, list, entry) {
662 if ((tmp->proto == QETH_PROT_IPV4) &&
663 (addr->proto == QETH_PROT_IPV4) &&
664 ((same_type && (tmp->type == addr->type)) ||
665 (!same_type && (tmp->type != addr->type)) ) &&
666 (tmp->u.a4.addr == addr->u.a4.addr) ){
667 return 1;
668 }
669 if ((tmp->proto == QETH_PROT_IPV6) &&
670 (addr->proto == QETH_PROT_IPV6) &&
671 ((same_type && (tmp->type == addr->type)) ||
672 (!same_type && (tmp->type != addr->type)) ) &&
673 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
674 sizeof(struct in6_addr)) == 0) ) {
675 return 1;
676 }
677 }
678 return 0;
679}
680
681/*
682 * Add IP to be added to todo list. If there is already an "add todo"
683 * in this list we just incremenent the reference count.
684 * Returns 0 if we just incremented reference count.
685 */
686static int
687__qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
688{
689 struct qeth_ipaddr *tmp, *t;
690 int found = 0;
691
692 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
693 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
694 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
695 return 0;
6c88ad2d
FP		 696 if (card->options.layer2) {
697 if ((tmp->type == addr->type) &&
698 (tmp->is_multicast == addr->is_multicast) &&
699 (memcmp(&tmp->mac, &addr->mac,
700 OSA_ADDR_LEN) == 0)) {
701 found = 1;
702 break;
703 }
704 continue;
705 }
1da177e4
LT		 706 if ((tmp->proto == QETH_PROT_IPV4) &&
707 (addr->proto == QETH_PROT_IPV4) &&
708 (tmp->type == addr->type) &&
709 (tmp->is_multicast == addr->is_multicast) &&
710 (tmp->u.a4.addr == addr->u.a4.addr) &&
6c88ad2d 711 (tmp->u.a4.mask == addr->u.a4.mask)) {
1da177e4
LT		 712 found = 1;
713 break;
714 }
715 if ((tmp->proto == QETH_PROT_IPV6) &&
716 (addr->proto == QETH_PROT_IPV6) &&
717 (tmp->type == addr->type) &&
718 (tmp->is_multicast == addr->is_multicast) &&
719 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
720 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
6c88ad2d 721 sizeof(struct in6_addr)) == 0)) {
1da177e4
LT		 722 found = 1;
723 break;
724 }
725 }
726 if (found){
727 if (addr->users != 0)
728 tmp->users += addr->users;
729 else
730 tmp->users += add? 1:-1;
6c88ad2d 731 if (tmp->users == 0) {
1da177e4
LT		 732 list_del(&tmp->entry);
733 kfree(tmp);
734 }
735 return 0;
736 } else {
737 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
738 list_add(&addr->entry, card->ip_tbd_list);
739 else {
740 if (addr->users == 0)
741 addr->users += add? 1:-1;
742 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
743 qeth_is_addr_covered_by_ipato(card, addr)){
744 QETH_DBF_TEXT(trace, 2, "tkovaddr");
745 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
746 }
747 list_add_tail(&addr->entry, card->ip_tbd_list);
748 }
749 return 1;
750 }
751}
752
753/**
754 * Remove IP address from list
755 */
756static int
757qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
758{
759 unsigned long flags;
760 int rc = 0;
761
6c88ad2d
FP		 762 QETH_DBF_TEXT(trace, 4, "delip");
763
764 if (card->options.layer2)
765 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
766 else if (addr->proto == QETH_PROT_IPV4)
767 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 768 else {
6c88ad2d
FP		 769 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
770 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 771 }
772 spin_lock_irqsave(&card->ip_lock, flags);
773 rc = __qeth_insert_ip_todo(card, addr, 0);
774 spin_unlock_irqrestore(&card->ip_lock, flags);
775 return rc;
776}
777
778static int
779qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
780{
781 unsigned long flags;
782 int rc = 0;
783
6c88ad2d
FP		 784 QETH_DBF_TEXT(trace, 4, "addip");
785 if (card->options.layer2)
786 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
787 else if (addr->proto == QETH_PROT_IPV4)
788 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
1da177e4 789 else {
6c88ad2d
FP		 790 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
791 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
1da177e4
LT		 792 }
793 spin_lock_irqsave(&card->ip_lock, flags);
794 rc = __qeth_insert_ip_todo(card, addr, 1);
795 spin_unlock_irqrestore(&card->ip_lock, flags);
796 return rc;
797}
798
799static inline void
800__qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
801{
802 struct qeth_ipaddr *addr, *tmp;
803 int rc;
d805d7c6 804again:
1da177e4
LT		 805 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
806 if (addr->is_multicast) {
807 spin_unlock_irqrestore(&card->ip_lock, *flags);
808 rc = qeth_deregister_addr_entry(card, addr);
809 spin_lock_irqsave(&card->ip_lock, *flags);
810 if (!rc) {
811 list_del(&addr->entry);
812 kfree(addr);
d805d7c6 813 goto again;
1da177e4
LT		 814 }
815 }
816 }
817}
818
819static void
820qeth_set_ip_addr_list(struct qeth_card *card)
821{
822 struct list_head *tbd_list;
823 struct qeth_ipaddr *todo, *addr;
824 unsigned long flags;
825 int rc;
826
827 QETH_DBF_TEXT(trace, 2, "sdiplist");
828 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
829
830 spin_lock_irqsave(&card->ip_lock, flags);
831 tbd_list = card->ip_tbd_list;
832 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
833 if (!card->ip_tbd_list) {
834 QETH_DBF_TEXT(trace, 0, "silnomem");
835 card->ip_tbd_list = tbd_list;
836 spin_unlock_irqrestore(&card->ip_lock, flags);
837 return;
838 } else
839 INIT_LIST_HEAD(card->ip_tbd_list);
840
841 while (!list_empty(tbd_list)){
842 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
843 list_del(&todo->entry);
844 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
845 __qeth_delete_all_mc(card, &flags);
846 kfree(todo);
847 continue;
848 }
849 rc = __qeth_ref_ip_on_card(card, todo, &addr);
850 if (rc == 0) {
851 /* nothing to be done; only adjusted refcount */
852 kfree(todo);
853 } else if (rc == 1) {
854 /* new entry to be added to on-card list */
855 spin_unlock_irqrestore(&card->ip_lock, flags);
856 rc = qeth_register_addr_entry(card, todo);
857 spin_lock_irqsave(&card->ip_lock, flags);
858 if (!rc)
859 list_add_tail(&todo->entry, &card->ip_list);
860 else
861 kfree(todo);
862 } else if (rc == -1) {
863 /* on-card entry to be removed */
864 list_del_init(&addr->entry);
865 spin_unlock_irqrestore(&card->ip_lock, flags);
866 rc = qeth_deregister_addr_entry(card, addr);
867 spin_lock_irqsave(&card->ip_lock, flags);
868 if (!rc)
869 kfree(addr);
870 else
871 list_add_tail(&addr->entry, &card->ip_list);
872 kfree(todo);
873 }
874 }
875 spin_unlock_irqrestore(&card->ip_lock, flags);
876 kfree(tbd_list);
877}
878
879static void qeth_delete_mc_addresses(struct qeth_card *);
880static void qeth_add_multicast_ipv4(struct qeth_card *);
6c88ad2d 881static void qeth_layer2_add_multicast(struct qeth_card *);
1da177e4
LT		 882#ifdef CONFIG_QETH_IPV6
883static void qeth_add_multicast_ipv6(struct qeth_card *);
884#endif
885
886static inline int
887qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
888{
889 unsigned long flags;
890
891 spin_lock_irqsave(&card->thread_mask_lock, flags);
892 if ( !(card->thread_allowed_mask & thread) ||
893 (card->thread_start_mask & thread) ) {
894 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
895 return -EPERM;
896 }
897 card->thread_start_mask |= thread;
898 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
899 return 0;
900}
901
902static void
903qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
904{
905 unsigned long flags;
906
907 spin_lock_irqsave(&card->thread_mask_lock, flags);
908 card->thread_start_mask &= ~thread;
909 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
910 wake_up(&card->wait_q);
911}
912
913static void
914qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
915{
916 unsigned long flags;
917
918 spin_lock_irqsave(&card->thread_mask_lock, flags);
919 card->thread_running_mask &= ~thread;
920 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
921 wake_up(&card->wait_q);
922}
923
924static inline int
925__qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
926{
927 unsigned long flags;
928 int rc = 0;
929
930 spin_lock_irqsave(&card->thread_mask_lock, flags);
931 if (card->thread_start_mask & thread){
932 if ((card->thread_allowed_mask & thread) &&
933 !(card->thread_running_mask & thread)){
934 rc = 1;
935 card->thread_start_mask &= ~thread;
936 card->thread_running_mask |= thread;
937 } else
938 rc = -EPERM;
939 }
940 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
941 return rc;
942}
943
944static int
945qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
946{
947 int rc = 0;
948
949 wait_event(card->wait_q,
950 (rc = __qeth_do_run_thread(card, thread)) >= 0);
951 return rc;
952}
953
954static int
955qeth_register_ip_addresses(void *ptr)
956{
957 struct qeth_card *card;
958
959 card = (struct qeth_card *) ptr;
960 daemonize("qeth_reg_ip");
961 QETH_DBF_TEXT(trace,4,"regipth1");
962 if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
963 return 0;
964 QETH_DBF_TEXT(trace,4,"regipth2");
965 qeth_set_ip_addr_list(card);
966 qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
967 return 0;
968}
969
6c951b90
FP		 970/*
971 * Drive the SET_PROMISC_MODE thread
972 */
973static int
974qeth_set_promisc_mode(void *ptr)
975{
976 struct qeth_card *card = (struct qeth_card *) ptr;
977
978 daemonize("qeth_setprm");
979 QETH_DBF_TEXT(trace,4,"setprm1");
980 if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
981 return 0;
982 QETH_DBF_TEXT(trace,4,"setprm2");
983 qeth_setadp_promisc_mode(card);
984 qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
985 return 0;
986}
987
1da177e4
LT		 988static int
989qeth_recover(void *ptr)
990{
991 struct qeth_card *card;
992 int rc = 0;
993
994 card = (struct qeth_card *) ptr;
995 daemonize("qeth_recover");
996 QETH_DBF_TEXT(trace,2,"recover1");
997 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
998 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
999 return 0;
1000 QETH_DBF_TEXT(trace,2,"recover2");
1001 PRINT_WARN("Recovery of device %s started ...\n",
1002 CARD_BUS_ID(card));
1003 card->use_hard_stop = 1;
05e08a2a
FP		 1004 __qeth_set_offline(card->gdev,1);
1005 rc = __qeth_set_online(card->gdev,1);
1da177e4
LT		 1006 if (!rc)
1007 PRINT_INFO("Device %s successfully recovered!\n",
1008 CARD_BUS_ID(card));
1009 else
1010 PRINT_INFO("Device %s could not be recovered!\n",
1011 CARD_BUS_ID(card));
1012 /* don't run another scheduled recovery */
1013 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1014 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1015 return 0;
1016}
1017
1018void
1019qeth_schedule_recovery(struct qeth_card *card)
1020{
1021 QETH_DBF_TEXT(trace,2,"startrec");
1da177e4
LT		 1022 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1023 schedule_work(&card->kernel_thread_starter);
1024}
1025
1026static int
1027qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1028{
1029 unsigned long flags;
1030 int rc = 0;
1031
1032 spin_lock_irqsave(&card->thread_mask_lock, flags);
1033 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1034 (u8) card->thread_start_mask,
1035 (u8) card->thread_allowed_mask,
1036 (u8) card->thread_running_mask);
1037 rc = (card->thread_start_mask & thread);
1038 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1039 return rc;
1040}
1041
1042static void
1043qeth_start_kernel_thread(struct qeth_card *card)
1044{
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;
1da177e4
LT		 1077}
1078
1079/**
1080 * initialize channels ,card and all state machines
1081 */
1082static int
1083qeth_setup_card(struct qeth_card *card)
1084{
1085
1086 QETH_DBF_TEXT(setup, 2, "setupcrd");
1087 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1088
1089 card->read.state = CH_STATE_DOWN;
1090 card->write.state = CH_STATE_DOWN;
1091 card->data.state = CH_STATE_DOWN;
1092 card->state = CARD_STATE_DOWN;
1093 card->lan_online = 0;
1094 card->use_hard_stop = 0;
1095 card->dev = NULL;
1096#ifdef CONFIG_QETH_VLAN
1097 spin_lock_init(&card->vlanlock);
1098 card->vlangrp = NULL;
1099#endif
9123e0d7 1100 spin_lock_init(&card->lock);
1da177e4
LT		 1101 spin_lock_init(&card->ip_lock);
1102 spin_lock_init(&card->thread_mask_lock);
1103 card->thread_start_mask = 0;
1104 card->thread_allowed_mask = 0;
1105 card->thread_running_mask = 0;
1106 INIT_WORK(&card->kernel_thread_starter,
1107 (void *)qeth_start_kernel_thread,card);
1108 INIT_LIST_HEAD(&card->ip_list);
1109 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1110 if (!card->ip_tbd_list) {
1111 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1112 return -ENOMEM;
1113 }
1114 INIT_LIST_HEAD(card->ip_tbd_list);
1115 INIT_LIST_HEAD(&card->cmd_waiter_list);
1116 init_waitqueue_head(&card->wait_q);
1117 /* intial options */
1118 qeth_set_intial_options(card);
1119 /* IP address takeover */
1120 INIT_LIST_HEAD(&card->ipato.entries);
1121 card->ipato.enabled = 0;
1122 card->ipato.invert4 = 0;
1123 card->ipato.invert6 = 0;
1124 /* init QDIO stuff */
1125 qeth_init_qdio_info(card);
1126 return 0;
1127}
1128
1129static int
1130is_1920_device (struct qeth_card *card)
1131{
1132 int single_queue = 0;
1133 struct ccw_device *ccwdev;
1134 struct channelPath_dsc {
1135 u8 flags;
1136 u8 lsn;
1137 u8 desc;
1138 u8 chpid;
1139 u8 swla;
1140 u8 zeroes;
1141 u8 chla;
1142 u8 chpp;
1143 } *chp_dsc;
1144
1145 QETH_DBF_TEXT(setup, 2, "chk_1920");
1146
1147 ccwdev = card->data.ccwdev;
1148 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1149 if (chp_dsc != NULL) {
1150 /* CHPP field bit 6 == 1 -> single queue */
1151 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1152 kfree(chp_dsc);
1153 }
1154 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1155 return single_queue;
1156}
1157
1158static int
1159qeth_determine_card_type(struct qeth_card *card)
1160{
1161 int i = 0;
1162
1163 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1164
500f83ab
UB		 1165 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1166 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1da177e4
LT		 1167 while (known_devices[i][4]) {
1168 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1169 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1170 card->info.type = known_devices[i][4];
500f83ab
UB		 1171 card->qdio.no_out_queues = known_devices[i][8];
1172 card->info.is_multicast_different = known_devices[i][9];
1da177e4
LT		 1173 if (is_1920_device(card)) {
1174 PRINT_INFO("Priority Queueing not able "
1175 "due to hardware limitations!\n");
1176 card->qdio.no_out_queues = 1;
1177 card->qdio.default_out_queue = 0;
500f83ab 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
UB		 1202 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
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;
1225 }
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
1635 reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1636 if (reply){
1637 memset(reply, 0, sizeof(struct qeth_reply));
1638 atomic_set(&reply->refcnt, 1);
1639 reply->card = card;
1640 };
1641 return reply;
1642}
1643
1644static void
1645qeth_get_reply(struct qeth_reply *reply)
1646{
1647 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1648 atomic_inc(&reply->refcnt);
1649}
1650
1651static void
1652qeth_put_reply(struct qeth_reply *reply)
1653{
1654 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1655 if (atomic_dec_and_test(&reply->refcnt))
1656 kfree(reply);
1657}
1658
1659static void
1660qeth_cmd_timeout(unsigned long data)
1661{
1662 struct qeth_reply *reply, *list_reply, *r;
1663 unsigned long flags;
1664
1665 reply = (struct qeth_reply *) data;
1666 spin_lock_irqsave(&reply->card->lock, flags);
1667 list_for_each_entry_safe(list_reply, r,
1668 &reply->card->cmd_waiter_list, list) {
1669 if (reply == list_reply){
1670 qeth_get_reply(reply);
1671 list_del_init(&reply->list);
1672 spin_unlock_irqrestore(&reply->card->lock, flags);
1673 reply->rc = -ETIME;
1674 reply->received = 1;
1675 wake_up(&reply->wait_q);
1676 qeth_put_reply(reply);
1677 return;
1678 }
1679 }
1680 spin_unlock_irqrestore(&reply->card->lock, flags);
1681}
1682
66cc5d5a 1683
1da177e4
LT		 1684static struct qeth_ipa_cmd *
1685qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1686{
1687 struct qeth_ipa_cmd *cmd = NULL;
1688
1689 QETH_DBF_TEXT(trace,5,"chkipad");
1690 if (IS_IPA(iob->data)){
1691 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1692 if (IS_IPA_REPLY(cmd))
1693 return cmd;
1694 else {
1695 switch (cmd->hdr.command) {
1696 case IPA_CMD_STOPLAN:
1697 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1698 "there is a network problem or "
1699 "someone pulled the cable or "
1700 "disabled the port.\n",
1701 QETH_CARD_IFNAME(card),
1702 card->info.chpid);
1703 card->lan_online = 0;
66cc5d5a
FP		 1704 if (card->dev && netif_carrier_ok(card->dev))
1705 netif_carrier_off(card->dev);
1da177e4
LT		 1706 return NULL;
1707 case IPA_CMD_STARTLAN:
1708 PRINT_INFO("Link reestablished on %s "
1709 "(CHPID 0x%X). Scheduling "
1710 "IP address reset.\n",
1711 QETH_CARD_IFNAME(card),
1712 card->info.chpid);
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}
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;
1943}
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}
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 void
2470qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2471 struct qeth_hdr *hdr)
2472{
2473#ifdef CONFIG_QETH_VLAN
2474 u16 *vlan_tag;
2475
2476 if (hdr->hdr.l3.ext_flags &
2477 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2478 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2479 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2480 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2481 *(vlan_tag + 1) = skb->protocol;
2482 skb->protocol = __constant_htons(ETH_P_8021Q);
2483 }
2484#endif /* CONFIG_QETH_VLAN */
2485}
2486
2487static inline __u16
2488qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2489 struct qeth_hdr *hdr)
2490{
2491 unsigned short vlan_id = 0;
2492#ifdef CONFIG_QETH_VLAN
2493 struct vlan_hdr *vhdr;
2494#endif
2495
2496 skb->pkt_type = PACKET_HOST;
2497 skb->protocol = qeth_type_trans(skb, skb->dev);
2498 if (card->options.checksum_type == NO_CHECKSUMMING)
2499 skb->ip_summed = CHECKSUM_UNNECESSARY;
2500 else
2501 skb->ip_summed = CHECKSUM_NONE;
2502#ifdef CONFIG_QETH_VLAN
2503 if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2504 vhdr = (struct vlan_hdr *) skb->data;
2505 skb->protocol =
2506 __constant_htons(vhdr->h_vlan_encapsulated_proto);
2507 vlan_id = hdr->hdr.l2.vlan_id;
2508 skb_pull(skb, VLAN_HLEN);
2509 }
2510#endif
9123e0d7 2511 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
1da177e4
LT		 2512 return vlan_id;
2513}
2514
2515static inline void
2516qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2517 struct qeth_hdr *hdr)
2518{
2519#ifdef CONFIG_QETH_IPV6
2520 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2521 skb->pkt_type = PACKET_HOST;
2522 skb->protocol = qeth_type_trans(skb, card->dev);
2523 return;
2524 }
2525#endif /* CONFIG_QETH_IPV6 */
2526 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2527 ETH_P_IP);
2528 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2529 case QETH_CAST_UNICAST:
2530 skb->pkt_type = PACKET_HOST;
2531 break;
2532 case QETH_CAST_MULTICAST:
2533 skb->pkt_type = PACKET_MULTICAST;
2534 card->stats.multicast++;
2535 break;
2536 case QETH_CAST_BROADCAST:
2537 skb->pkt_type = PACKET_BROADCAST;
2538 card->stats.multicast++;
2539 break;
2540 case QETH_CAST_ANYCAST:
2541 case QETH_CAST_NOCAST:
2542 default:
2543 skb->pkt_type = PACKET_HOST;
2544 }
2545 qeth_rebuild_skb_vlan(card, skb, hdr);
2546 if (card->options.fake_ll)
2547 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2548 else
2549 skb->mac.raw = skb->data;
2550 skb->ip_summed = card->options.checksum_type;
2551 if (card->options.checksum_type == HW_CHECKSUMMING){
2552 if ( (hdr->hdr.l3.ext_flags &
2553 (QETH_HDR_EXT_CSUM_HDR_REQ |
2554 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2555 (QETH_HDR_EXT_CSUM_HDR_REQ |
2556 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2557 skb->ip_summed = CHECKSUM_UNNECESSARY;
2558 else
2559 skb->ip_summed = SW_CHECKSUMMING;
2560 }
2561}
2562
2563static inline void
2564qeth_process_inbound_buffer(struct qeth_card *card,
2565 struct qeth_qdio_buffer *buf, int index)
2566{
2567 struct qdio_buffer_element *element;
2568 struct sk_buff *skb;
2569 struct qeth_hdr *hdr;
2570 int offset;
2571 int rxrc;
2572 __u16 vlan_tag = 0;
2573
2574 /* get first element of current buffer */
2575 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2576 offset = 0;
2577#ifdef CONFIG_QETH_PERF_STATS
2578 card->perf_stats.bufs_rec++;
2579#endif
2580 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2581 &offset, &hdr))) {
2582 skb->dev = card->dev;
2583 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2584 vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
500f83ab 2585 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
1da177e4 2586 qeth_rebuild_skb(card, skb, hdr);
500f83ab
UB		 2587 else { /*in case of OSN*/
2588 skb_push(skb, sizeof(struct qeth_hdr));
2589 memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2590 }
1da177e4
LT		 2591 /* is device UP ? */
2592 if (!(card->dev->flags & IFF_UP)){
2593 dev_kfree_skb_any(skb);
2594 continue;
2595 }
2596#ifdef CONFIG_QETH_VLAN
2597 if (vlan_tag)
2598 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2599 else
2600#endif
500f83ab
UB		 2601 if (card->info.type == QETH_CARD_TYPE_OSN)
2602 rxrc = card->osn_info.data_cb(skb);
2603 else
2604 rxrc = netif_rx(skb);
1da177e4
LT		 2605 card->dev->last_rx = jiffies;
2606 card->stats.rx_packets++;
2607 card->stats.rx_bytes += skb->len;
2608 }
2609}
2610
2611static inline struct qeth_buffer_pool_entry *
2612qeth_get_buffer_pool_entry(struct qeth_card *card)
2613{
2614 struct qeth_buffer_pool_entry *entry;
2615
2616 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2617 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2618 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2619 struct qeth_buffer_pool_entry, list);
2620 list_del_init(&entry->list);
2621 return entry;
2622 }
2623 return NULL;
2624}
2625
2626static inline void
2627qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2628{
2629 struct qeth_buffer_pool_entry *pool_entry;
2630 int i;
2631
2632 pool_entry = qeth_get_buffer_pool_entry(card);
2633 /*
2634 * since the buffer is accessed only from the input_tasklet
2635 * there shouldn't be a need to synchronize; also, since we use
2636 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2637 * buffers
2638 */
2639 BUG_ON(!pool_entry);
2640
2641 buf->pool_entry = pool_entry;
2642 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2643 buf->buffer->element[i].length = PAGE_SIZE;
2644 buf->buffer->element[i].addr = pool_entry->elements[i];
2645 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2646 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2647 else
2648 buf->buffer->element[i].flags = 0;
2649 }
2650 buf->state = QETH_QDIO_BUF_EMPTY;
2651}
2652
2653static inline void
2654qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2655 struct qeth_qdio_out_buffer *buf)
2656{
2657 int i;
2658 struct sk_buff *skb;
2659
2660 /* is PCI flag set on buffer? */
2661 if (buf->buffer->element[0].flags & 0x40)
2662 atomic_dec(&queue->set_pci_flags_count);
2663
2664 while ((skb = skb_dequeue(&buf->skb_list))){
2665 atomic_dec(&skb->users);
2666 dev_kfree_skb_any(skb);
2667 }
2668 qeth_eddp_buf_release_contexts(buf);
2669 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2670 buf->buffer->element[i].length = 0;
2671 buf->buffer->element[i].addr = NULL;
2672 buf->buffer->element[i].flags = 0;
2673 }
2674 buf->next_element_to_fill = 0;
2675 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2676}
2677
2678static inline void
2679qeth_queue_input_buffer(struct qeth_card *card, int index)
2680{
2681 struct qeth_qdio_q *queue = card->qdio.in_q;
2682 int count;
2683 int i;
2684 int rc;
2685
2686 QETH_DBF_TEXT(trace,6,"queinbuf");
2687 count = (index < queue->next_buf_to_init)?
2688 card->qdio.in_buf_pool.buf_count -
2689 (queue->next_buf_to_init - index) :
2690 card->qdio.in_buf_pool.buf_count -
2691 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2692 /* only requeue at a certain threshold to avoid SIGAs */
2693 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2694 for (i = queue->next_buf_to_init;
2695 i < queue->next_buf_to_init + count; ++i)
2696 qeth_init_input_buffer(card,
2697 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2698 /*
2699 * according to old code it should be avoided to requeue all
2700 * 128 buffers in order to benefit from PCI avoidance.
2701 * this function keeps at least one buffer (the buffer at
2702 * 'index') un-requeued -> this buffer is the first buffer that
2703 * will be requeued the next time
2704 */
2705#ifdef CONFIG_QETH_PERF_STATS
2706 card->perf_stats.inbound_do_qdio_cnt++;
2707 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2708#endif
2709 rc = do_QDIO(CARD_DDEV(card),
2710 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2711 0, queue->next_buf_to_init, count, NULL);
2712#ifdef CONFIG_QETH_PERF_STATS
2713 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2714 card->perf_stats.inbound_do_qdio_start_time;
2715#endif
2716 if (rc){
2717 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2718 "return %i (device %s).\n",
2719 rc, CARD_DDEV_ID(card));
2720 QETH_DBF_TEXT(trace,2,"qinberr");
2721 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2722 }
2723 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2724 QDIO_MAX_BUFFERS_PER_Q;
2725 }
2726}
2727
2728static inline void
2729qeth_put_buffer_pool_entry(struct qeth_card *card,
2730 struct qeth_buffer_pool_entry *entry)
2731{
2732 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2733 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2734}
2735
2736static void
2737qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2738 unsigned int qdio_err, unsigned int siga_err,
2739 unsigned int queue, int first_element, int count,
2740 unsigned long card_ptr)
2741{
2742 struct net_device *net_dev;
2743 struct qeth_card *card;
2744 struct qeth_qdio_buffer *buffer;
2745 int index;
2746 int i;
2747
2748 QETH_DBF_TEXT(trace, 6, "qdinput");
2749 card = (struct qeth_card *) card_ptr;
2750 net_dev = card->dev;
2751#ifdef CONFIG_QETH_PERF_STATS
2752 card->perf_stats.inbound_cnt++;
2753 card->perf_stats.inbound_start_time = qeth_get_micros();
2754#endif
2755 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2756 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2757 QETH_DBF_TEXT(trace, 1,"qdinchk");
2758 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2759 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2760 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2761 qeth_schedule_recovery(card);
2762 return;
2763 }
2764 }
2765 for (i = first_element; i < (first_element + count); ++i) {
2766 index = i % QDIO_MAX_BUFFERS_PER_Q;
2767 buffer = &card->qdio.in_q->bufs[index];
6c6b3e7c
FP		 2768 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2769 qeth_check_qdio_errors(buffer->buffer,
2770 qdio_err, siga_err,"qinerr")))
1da177e4
LT		 2771 qeth_process_inbound_buffer(card, buffer, index);
2772 /* clear buffer and give back to hardware */
2773 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2774 qeth_queue_input_buffer(card, index);
2775 }
2776#ifdef CONFIG_QETH_PERF_STATS
2777 card->perf_stats.inbound_time += qeth_get_micros() -
2778 card->perf_stats.inbound_start_time;
2779#endif
2780}
2781
2782static inline int
2783qeth_handle_send_error(struct qeth_card *card,
2784 struct qeth_qdio_out_buffer *buffer,
6c6b3e7c 2785 unsigned int qdio_err, unsigned int siga_err)
1da177e4
LT		 2786{
2787 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2788 int cc = siga_err & 3;
2789
2790 QETH_DBF_TEXT(trace, 6, "hdsnderr");
6c6b3e7c 2791 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
1da177e4
LT		 2792 switch (cc) {
2793 case 0:
2794 if (qdio_err){
2795 QETH_DBF_TEXT(trace, 1,"lnkfail");
2796 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2797 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2798 (u16)qdio_err, (u8)sbalf15);
2799 return QETH_SEND_ERROR_LINK_FAILURE;
2800 }
2801 return QETH_SEND_ERROR_NONE;
2802 case 2:
2803 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2804 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2805 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2806 return QETH_SEND_ERROR_KICK_IT;
2807 }
2808 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2809 return QETH_SEND_ERROR_RETRY;
2810 return QETH_SEND_ERROR_LINK_FAILURE;
2811 /* look at qdio_error and sbalf 15 */
2812 case 1:
2813 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2814 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2815 return QETH_SEND_ERROR_LINK_FAILURE;
2816 case 3:
1380fee2 2817 default:
1da177e4
LT		 2818 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2819 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2820 return QETH_SEND_ERROR_KICK_IT;
2821 }
1da177e4
LT		 2822}
2823
2824void
2825qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2826 int index, int count)
2827{
2828 struct qeth_qdio_out_buffer *buf;
2829 int rc;
2830 int i;
2831
2832 QETH_DBF_TEXT(trace, 6, "flushbuf");
2833
2834 for (i = index; i < index + count; ++i) {
2835 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2836 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2837 SBAL_FLAGS_LAST_ENTRY;
2838
2839 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2840 continue;
2841
2842 if (!queue->do_pack){
2843 if ((atomic_read(&queue->used_buffers) >=
2844 (QETH_HIGH_WATERMARK_PACK -
2845 QETH_WATERMARK_PACK_FUZZ)) &&
2846 !atomic_read(&queue->set_pci_flags_count)){
2847 /* it's likely that we'll go to packing
2848 * mode soon */
2849 atomic_inc(&queue->set_pci_flags_count);
2850 buf->buffer->element[0].flags |= 0x40;
2851 }
2852 } else {
2853 if (!atomic_read(&queue->set_pci_flags_count)){
2854 /*
2855 * there's no outstanding PCI any more, so we
2856 * have to request a PCI to be sure the the PCI
2857 * will wake at some time in the future then we
2858 * can flush packed buffers that might still be
2859 * hanging around, which can happen if no
2860 * further send was requested by the stack
2861 */
2862 atomic_inc(&queue->set_pci_flags_count);
2863 buf->buffer->element[0].flags |= 0x40;
2864 }
2865 }
2866 }
2867
2868 queue->card->dev->trans_start = jiffies;
2869#ifdef CONFIG_QETH_PERF_STATS
2870 queue->card->perf_stats.outbound_do_qdio_cnt++;
2871 queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2872#endif
2873 if (under_int)
2874 rc = do_QDIO(CARD_DDEV(queue->card),
2875 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2876 queue->queue_no, index, count, NULL);
2877 else
2878 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2879 queue->queue_no, index, count, NULL);
2880#ifdef CONFIG_QETH_PERF_STATS
2881 queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2882 queue->card->perf_stats.outbound_do_qdio_start_time;
2883#endif
2884 if (rc){
1da177e4
LT		 2885 QETH_DBF_TEXT(trace, 2, "flushbuf");
2886 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
f3d242e8 2887 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
1da177e4
LT		 2888 queue->card->stats.tx_errors += count;
2889 /* this must not happen under normal circumstances. if it
2890 * happens something is really wrong -> recover */
2891 qeth_schedule_recovery(queue->card);
2892 return;
2893 }
2894 atomic_add(count, &queue->used_buffers);
2895#ifdef CONFIG_QETH_PERF_STATS
2896 queue->card->perf_stats.bufs_sent += count;
2897#endif
2898}
2899
2900/*
2901 * Switched to packing state if the number of used buffers on a queue
2902 * reaches a certain limit.
2903 */
2904static inline void
2905qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2906{
2907 if (!queue->do_pack) {
2908 if (atomic_read(&queue->used_buffers)
2909 >= QETH_HIGH_WATERMARK_PACK){
2910 /* switch non-PACKING -> PACKING */
2911 QETH_DBF_TEXT(trace, 6, "np->pack");
2912#ifdef CONFIG_QETH_PERF_STATS
2913 queue->card->perf_stats.sc_dp_p++;
2914#endif
2915 queue->do_pack = 1;
2916 }
2917 }
2918}
2919
2920/*
2921 * Switches from packing to non-packing mode. If there is a packing
2922 * buffer on the queue this buffer will be prepared to be flushed.
2923 * In that case 1 is returned to inform the caller. If no buffer
2924 * has to be flushed, zero is returned.
2925 */
2926static inline int
2927qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2928{
2929 struct qeth_qdio_out_buffer *buffer;
2930 int flush_count = 0;
2931
2932 if (queue->do_pack) {
2933 if (atomic_read(&queue->used_buffers)
2934 <= QETH_LOW_WATERMARK_PACK) {
2935 /* switch PACKING -> non-PACKING */
2936 QETH_DBF_TEXT(trace, 6, "pack->np");
2937#ifdef CONFIG_QETH_PERF_STATS
2938 queue->card->perf_stats.sc_p_dp++;
2939#endif
2940 queue->do_pack = 0;
2941 /* flush packing buffers */
2942 buffer = &queue->bufs[queue->next_buf_to_fill];
2943 if ((atomic_read(&buffer->state) ==
2944 QETH_QDIO_BUF_EMPTY) &&
2945 (buffer->next_element_to_fill > 0)) {
2946 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2947 flush_count++;
2948 queue->next_buf_to_fill =
2949 (queue->next_buf_to_fill + 1) %
2950 QDIO_MAX_BUFFERS_PER_Q;
2951 }
2952 }
2953 }
2954 return flush_count;
2955}
2956
2957/*
2958 * Called to flush a packing buffer if no more pci flags are on the queue.
2959 * Checks if there is a packing buffer and prepares it to be flushed.
2960 * In that case returns 1, otherwise zero.
2961 */
2962static inline int
2963qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2964{
2965 struct qeth_qdio_out_buffer *buffer;
2966
2967 buffer = &queue->bufs[queue->next_buf_to_fill];
2968 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2969 (buffer->next_element_to_fill > 0)){
2970 /* it's a packing buffer */
2971 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2972 queue->next_buf_to_fill =
2973 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2974 return 1;
2975 }
2976 return 0;
2977}
2978
2979static inline void
2980qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2981{
2982 int index;
2983 int flush_cnt = 0;
2984 int q_was_packing = 0;
2985
2986 /*
2987 * check if weed have to switch to non-packing mode or if
2988 * we have to get a pci flag out on the queue
2989 */
2990 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2991 !atomic_read(&queue->set_pci_flags_count)){
2992 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2993 QETH_OUT_Q_UNLOCKED) {
2994 /*
2995 * If we get in here, there was no action in
2996 * do_send_packet. So, we check if there is a
2997 * packing buffer to be flushed here.
2998 */
2999 netif_stop_queue(queue->card->dev);
3000 index = queue->next_buf_to_fill;
3001 q_was_packing = queue->do_pack;
3002 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3003 if (!flush_cnt &&
3004 !atomic_read(&queue->set_pci_flags_count))
3005 flush_cnt +=
3006 qeth_flush_buffers_on_no_pci(queue);
3007#ifdef CONFIG_QETH_PERF_STATS
3008 if (q_was_packing)
3009 queue->card->perf_stats.bufs_sent_pack +=
3010 flush_cnt;
3011#endif
3012 if (flush_cnt)
3013 qeth_flush_buffers(queue, 1, index, flush_cnt);
3014 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3015 }
3016 }
3017}
3018
3019static void
3020qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3021 unsigned int qdio_error, unsigned int siga_error,
3022 unsigned int __queue, int first_element, int count,
3023 unsigned long card_ptr)
3024{
3025 struct qeth_card *card = (struct qeth_card *) card_ptr;
3026 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3027 struct qeth_qdio_out_buffer *buffer;
3028 int i;
3029
3030 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3031 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3032 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
f3d242e8
FP		 3033 QETH_DBF_TEXT(trace, 2, "achkcond");
3034 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
1da177e4
LT		 3035 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3036 netif_stop_queue(card->dev);
3037 qeth_schedule_recovery(card);
3038 return;
3039 }
3040 }
3041#ifdef CONFIG_QETH_PERF_STATS
3042 card->perf_stats.outbound_handler_cnt++;
3043 card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3044#endif
3045 for(i = first_element; i < (first_element + count); ++i){
3046 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3047 /*we only handle the KICK_IT error by doing a recovery */
6c6b3e7c
FP		 3048 if (qeth_handle_send_error(card, buffer,
3049 qdio_error, siga_error)
1da177e4
LT		 3050 == QETH_SEND_ERROR_KICK_IT){
3051 netif_stop_queue(card->dev);
3052 qeth_schedule_recovery(card);
3053 return;
3054 }
3055 qeth_clear_output_buffer(queue, buffer);
3056 }
3057 atomic_sub(count, &queue->used_buffers);
3058 /* check if we need to do something on this outbound queue */
3059 if (card->info.type != QETH_CARD_TYPE_IQD)
3060 qeth_check_outbound_queue(queue);
3061
3062 netif_wake_queue(queue->card->dev);
3063#ifdef CONFIG_QETH_PERF_STATS
3064 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3065 card->perf_stats.outbound_handler_start_time;
3066#endif
3067}
3068
3069static void
3070qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3071{
3072
3073 param_field[0] = _ascebc['P'];
3074 param_field[1] = _ascebc['C'];
3075 param_field[2] = _ascebc['I'];
3076 param_field[3] = _ascebc['T'];
3077 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3078 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3079 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3080}
3081
3082static void
3083qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3084{
3085 param_field[16] = _ascebc['B'];
3086 param_field[17] = _ascebc['L'];
3087 param_field[18] = _ascebc['K'];
3088 param_field[19] = _ascebc['T'];
3089 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3090 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3091 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3092}
3093
3094static void
3095qeth_initialize_working_pool_list(struct qeth_card *card)
3096{
3097 struct qeth_buffer_pool_entry *entry;
3098
3099 QETH_DBF_TEXT(trace,5,"inwrklst");
3100
3101 list_for_each_entry(entry,
3102 &card->qdio.init_pool.entry_list, init_list) {
3103 qeth_put_buffer_pool_entry(card,entry);
3104 }
3105}
3106
3107static void
3108qeth_clear_working_pool_list(struct qeth_card *card)
3109{
3110 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3111
3112 QETH_DBF_TEXT(trace,5,"clwrklst");
3113 list_for_each_entry_safe(pool_entry, tmp,
3114 &card->qdio.in_buf_pool.entry_list, list){
3115 list_del(&pool_entry->list);
3116 }
3117}
3118
3119static void
3120qeth_free_buffer_pool(struct qeth_card *card)
3121{
3122 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3123 int i=0;
3124 QETH_DBF_TEXT(trace,5,"freepool");
3125 list_for_each_entry_safe(pool_entry, tmp,
3126 &card->qdio.init_pool.entry_list, init_list){
3127 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3128 free_page((unsigned long)pool_entry->elements[i]);
3129 list_del(&pool_entry->init_list);
3130 kfree(pool_entry);
3131 }
3132}
3133
3134static int
3135qeth_alloc_buffer_pool(struct qeth_card *card)
3136{
3137 struct qeth_buffer_pool_entry *pool_entry;
3138 void *ptr;
3139 int i, j;
3140
3141 QETH_DBF_TEXT(trace,5,"alocpool");
3142 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3143 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3144 if (!pool_entry){
3145 qeth_free_buffer_pool(card);
3146 return -ENOMEM;
3147 }
3148 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
9123e0d7 3149 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3150 if (!ptr) {
3151 while (j > 0)
3152 free_page((unsigned long)
3153 pool_entry->elements[--j]);
3154 kfree(pool_entry);
3155 qeth_free_buffer_pool(card);
3156 return -ENOMEM;
3157 }
3158 pool_entry->elements[j] = ptr;
3159 }
3160 list_add(&pool_entry->init_list,
3161 &card->qdio.init_pool.entry_list);
3162 }
3163 return 0;
3164}
3165
3166int
3167qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3168{
3169 QETH_DBF_TEXT(trace, 2, "realcbp");
3170
3171 if ((card->state != CARD_STATE_DOWN) &&
3172 (card->state != CARD_STATE_RECOVER))
3173 return -EPERM;
3174
3175 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3176 qeth_clear_working_pool_list(card);
3177 qeth_free_buffer_pool(card);
3178 card->qdio.in_buf_pool.buf_count = bufcnt;
3179 card->qdio.init_pool.buf_count = bufcnt;
3180 return qeth_alloc_buffer_pool(card);
3181}
3182
3183static int
3184qeth_alloc_qdio_buffers(struct qeth_card *card)
3185{
3186 int i, j;
3187
3188 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3189
3190 if (card->qdio.state == QETH_QDIO_ALLOCATED)
3191 return 0;
3192
9123e0d7
UB		 3193 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3194 GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3195 if (!card->qdio.in_q)
3196 return - ENOMEM;
3197 QETH_DBF_TEXT(setup, 2, "inq");
3198 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3199 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3200 /* give inbound qeth_qdio_buffers their qdio_buffers */
3201 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3202 card->qdio.in_q->bufs[i].buffer =
3203 &card->qdio.in_q->qdio_bufs[i];
3204 /* inbound buffer pool */
3205 if (qeth_alloc_buffer_pool(card)){
3206 kfree(card->qdio.in_q);
3207 return -ENOMEM;
3208 }
3209 /* outbound */
3210 card->qdio.out_qs =
3211 kmalloc(card->qdio.no_out_queues *
3212 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3213 if (!card->qdio.out_qs){
3214 qeth_free_buffer_pool(card);
3215 return -ENOMEM;
3216 }
3217 for (i = 0; i < card->qdio.no_out_queues; ++i){
3218 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
9123e0d7 3219 GFP_KERNEL|GFP_DMA);
1da177e4
LT		 3220 if (!card->qdio.out_qs[i]){
3221 while (i > 0)
3222 kfree(card->qdio.out_qs[--i]);
3223 kfree(card->qdio.out_qs);
3224 return -ENOMEM;
3225 }
3226 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3227 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3228 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3229 card->qdio.out_qs[i]->queue_no = i;
3230 /* give outbound qeth_qdio_buffers their qdio_buffers */
3231 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3232 card->qdio.out_qs[i]->bufs[j].buffer =
3233 &card->qdio.out_qs[i]->qdio_bufs[j];
3234 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3235 skb_list);
3236 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3237 }
3238 }
3239 card->qdio.state = QETH_QDIO_ALLOCATED;
3240 return 0;
3241}
3242
3243static void
3244qeth_free_qdio_buffers(struct qeth_card *card)
3245{
3246 int i, j;
3247
3248 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3249 if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3250 return;
3251 kfree(card->qdio.in_q);
3252 /* inbound buffer pool */
3253 qeth_free_buffer_pool(card);
3254 /* free outbound qdio_qs */
3255 for (i = 0; i < card->qdio.no_out_queues; ++i){
3256 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3257 qeth_clear_output_buffer(card->qdio.out_qs[i],
3258 &card->qdio.out_qs[i]->bufs[j]);
3259 kfree(card->qdio.out_qs[i]);
3260 }
3261 kfree(card->qdio.out_qs);
3262 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3263}
3264
3265static void
3266qeth_clear_qdio_buffers(struct qeth_card *card)
3267{
3268 int i, j;
3269
3270 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3271 /* clear outbound buffers to free skbs */
3272 for (i = 0; i < card->qdio.no_out_queues; ++i)
3273 if (card->qdio.out_qs[i]){
3274 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3275 qeth_clear_output_buffer(card->qdio.out_qs[i],
3276 &card->qdio.out_qs[i]->bufs[j]);
3277 }
3278}
3279
3280static void
3281qeth_init_qdio_info(struct qeth_card *card)
3282{
3283 QETH_DBF_TEXT(setup, 4, "intqdinf");
3284 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3285 /* inbound */
3286 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3287 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3288 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3289 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3290 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1da177e4
LT		 3291}
3292
3293static int
3294qeth_init_qdio_queues(struct qeth_card *card)
3295{
3296 int i, j;
3297 int rc;
3298
3299 QETH_DBF_TEXT(setup, 2, "initqdqs");
3300
3301 /* inbound queue */
3302 memset(card->qdio.in_q->qdio_bufs, 0,
3303 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3304 qeth_initialize_working_pool_list(card);
3305 /*give only as many buffers to hardware as we have buffer pool entries*/
3306 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3307 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3308 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3309 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3310 card->qdio.in_buf_pool.buf_count - 1, NULL);
3311 if (rc) {
3312 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3313 return rc;
3314 }
3315 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3316 if (rc) {
3317 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3318 return rc;
3319 }
3320 /* outbound queue */
3321 for (i = 0; i < card->qdio.no_out_queues; ++i){
3322 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3323 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3324 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3325 qeth_clear_output_buffer(card->qdio.out_qs[i],
3326 &card->qdio.out_qs[i]->bufs[j]);
3327 }
3328 card->qdio.out_qs[i]->card = card;
3329 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3330 card->qdio.out_qs[i]->do_pack = 0;
3331 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3332 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3333 atomic_set(&card->qdio.out_qs[i]->state,
3334 QETH_OUT_Q_UNLOCKED);
3335 }
3336 return 0;
3337}
3338
3339static int
3340qeth_qdio_establish(struct qeth_card *card)
3341{
3342 struct qdio_initialize init_data;
3343 char *qib_param_field;
3344 struct qdio_buffer **in_sbal_ptrs;
3345 struct qdio_buffer **out_sbal_ptrs;
3346 int i, j, k;
3347 int rc;
3348
3349 QETH_DBF_TEXT(setup, 2, "qdioest");
3350
3351 qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3352 GFP_KERNEL);
3353 if (!qib_param_field)
3354 return -ENOMEM;
3355
3356 memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3357
3358 qeth_create_qib_param_field(card, qib_param_field);
3359 qeth_create_qib_param_field_blkt(card, qib_param_field);
3360
3361 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3362 GFP_KERNEL);
3363 if (!in_sbal_ptrs) {
3364 kfree(qib_param_field);
3365 return -ENOMEM;
3366 }
3367 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3368 in_sbal_ptrs[i] = (struct qdio_buffer *)
3369 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3370
3371 out_sbal_ptrs =
3372 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3373 sizeof(void *), GFP_KERNEL);
3374 if (!out_sbal_ptrs) {
3375 kfree(in_sbal_ptrs);
3376 kfree(qib_param_field);
3377 return -ENOMEM;
3378 }
3379 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3380 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3381 out_sbal_ptrs[k] = (struct qdio_buffer *)
3382 virt_to_phys(card->qdio.out_qs[i]->
3383 bufs[j].buffer);
3384 }
3385
3386 memset(&init_data, 0, sizeof(struct qdio_initialize));
3387 init_data.cdev = CARD_DDEV(card);
3388 init_data.q_format = qeth_get_qdio_q_format(card);
3389 init_data.qib_param_field_format = 0;
3390 init_data.qib_param_field = qib_param_field;
3391 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3392 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3393 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3394 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3395 init_data.no_input_qs = 1;
3396 init_data.no_output_qs = card->qdio.no_out_queues;
3397 init_data.input_handler = (qdio_handler_t *)
3398 qeth_qdio_input_handler;
3399 init_data.output_handler = (qdio_handler_t *)
3400 qeth_qdio_output_handler;
3401 init_data.int_parm = (unsigned long) card;
3402 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3403 QDIO_OUTBOUND_0COPY_SBALS |
3404 QDIO_USE_OUTBOUND_PCIS;
3405 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3406 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3407
3408 if (!(rc = qdio_initialize(&init_data)))
3409 card->qdio.state = QETH_QDIO_ESTABLISHED;
3410
3411 kfree(out_sbal_ptrs);
3412 kfree(in_sbal_ptrs);
3413 kfree(qib_param_field);
3414 return rc;
3415}
3416
3417static int
3418qeth_qdio_activate(struct qeth_card *card)
3419{
3420 QETH_DBF_TEXT(setup,3,"qdioact");
3421 return qdio_activate(CARD_DDEV(card), 0);
3422}
3423
3424static int
3425qeth_clear_channel(struct qeth_channel *channel)
3426{
3427 unsigned long flags;
3428 struct qeth_card *card;
3429 int rc;
3430
3431 QETH_DBF_TEXT(trace,3,"clearch");
3432 card = CARD_FROM_CDEV(channel->ccwdev);
3433 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3434 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3435 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3436
3437 if (rc)
3438 return rc;
3439 rc = wait_event_interruptible_timeout(card->wait_q,
3440 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3441 if (rc == -ERESTARTSYS)
3442 return rc;
3443 if (channel->state != CH_STATE_STOPPED)
3444 return -ETIME;
3445 channel->state = CH_STATE_DOWN;
3446 return 0;
3447}
3448
3449static int
3450qeth_halt_channel(struct qeth_channel *channel)
3451{
3452 unsigned long flags;
3453 struct qeth_card *card;
3454 int rc;
3455
3456 QETH_DBF_TEXT(trace,3,"haltch");
3457 card = CARD_FROM_CDEV(channel->ccwdev);
3458 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3459 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3460 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3461
3462 if (rc)
3463 return rc;
3464 rc = wait_event_interruptible_timeout(card->wait_q,
3465 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3466 if (rc == -ERESTARTSYS)
3467 return rc;
3468 if (channel->state != CH_STATE_HALTED)
3469 return -ETIME;
3470 return 0;
3471}
3472
3473static int
3474qeth_halt_channels(struct qeth_card *card)
3475{
f3d242e8 3476 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3477
3478 QETH_DBF_TEXT(trace,3,"haltchs");
f3d242e8
FP		 3479 rc1 = qeth_halt_channel(&card->read);
3480 rc2 = qeth_halt_channel(&card->write);
3481 rc3 = qeth_halt_channel(&card->data);
3482 if (rc1)
3483 return rc1;
3484 if (rc2)
3485 return rc2;
3486 return rc3;
1da177e4
LT		 3487}
3488static int
3489qeth_clear_channels(struct qeth_card *card)
3490{
f3d242e8 3491 int rc1 = 0, rc2=0, rc3 = 0;
1da177e4
LT		 3492
3493 QETH_DBF_TEXT(trace,3,"clearchs");
f3d242e8
FP		 3494 rc1 = qeth_clear_channel(&card->read);
3495 rc2 = qeth_clear_channel(&card->write);
3496 rc3 = qeth_clear_channel(&card->data);
3497 if (rc1)
3498 return rc1;
3499 if (rc2)
3500 return rc2;
3501 return rc3;
1da177e4
LT		 3502}
3503
3504static int
3505qeth_clear_halt_card(struct qeth_card *card, int halt)
3506{
3507 int rc = 0;
3508
3509 QETH_DBF_TEXT(trace,3,"clhacrd");
3510 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3511
3512 if (halt)
3513 rc = qeth_halt_channels(card);
3514 if (rc)
3515 return rc;
3516 return qeth_clear_channels(card);
3517}
3518
3519static int
3520qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3521{
3522 int rc = 0;
3523
3524 QETH_DBF_TEXT(trace,3,"qdioclr");
3525 if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3526 if ((rc = qdio_cleanup(CARD_DDEV(card),
3527 (card->info.type == QETH_CARD_TYPE_IQD) ?
3528 QDIO_FLAG_CLEANUP_USING_HALT :
3529 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3530 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3531 card->qdio.state = QETH_QDIO_ALLOCATED;
3532 }
3533 if ((rc = qeth_clear_halt_card(card, use_halt)))
3534 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3535 card->state = CARD_STATE_DOWN;
3536 return rc;
3537}
3538
3539static int
3540qeth_dm_act(struct qeth_card *card)
3541{
3542 int rc;
3543 struct qeth_cmd_buffer *iob;
3544
3545 QETH_DBF_TEXT(setup,2,"dmact");
3546
3547 iob = qeth_wait_for_buffer(&card->write);
3548 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3549
3550 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3551 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3552 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3553 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3554 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3555 return rc;
3556}
3557
3558static int
3559qeth_mpc_initialize(struct qeth_card *card)
3560{
3561 int rc;
3562
3563 QETH_DBF_TEXT(setup,2,"mpcinit");
3564
3565 if ((rc = qeth_issue_next_read(card))){
3566 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3567 return rc;
3568 }
3569 if ((rc = qeth_cm_enable(card))){
3570 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
f3d242e8 3571 goto out_qdio;
1da177e4
LT		 3572 }
3573 if ((rc = qeth_cm_setup(card))){
3574 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
f3d242e8 3575 goto out_qdio;
1da177e4
LT		 3576 }
3577 if ((rc = qeth_ulp_enable(card))){
3578 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
f3d242e8 3579 goto out_qdio;
1da177e4
LT		 3580 }
3581 if ((rc = qeth_ulp_setup(card))){
3582 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3583 goto out_qdio;
1da177e4
LT		 3584 }
3585 if ((rc = qeth_alloc_qdio_buffers(card))){
3586 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
f3d242e8 3587 goto out_qdio;
1da177e4
LT		 3588 }
3589 if ((rc = qeth_qdio_establish(card))){
3590 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3591 qeth_free_qdio_buffers(card);
3592 goto out_qdio;
3593 }
3594 if ((rc = qeth_qdio_activate(card))){
3595 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3596 goto out_qdio;
3597 }
3598 if ((rc = qeth_dm_act(card))){
3599 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3600 goto out_qdio;
3601 }
3602
3603 return 0;
3604out_qdio:
500f83ab 3605 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 3606 return rc;
3607}
3608
3609static struct net_device *
3610qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3611{
3612 struct net_device *dev = NULL;
3613
3614 switch (type) {
3615 case QETH_CARD_TYPE_OSAE:
3616 switch (linktype) {
3617 case QETH_LINK_TYPE_LANE_TR:
3618 case QETH_LINK_TYPE_HSTR:
3619#ifdef CONFIG_TR
3620 dev = alloc_trdev(0);
3621#endif /* CONFIG_TR */
3622 break;
3623 default:
3624 dev = alloc_etherdev(0);
3625 }
3626 break;
3627 case QETH_CARD_TYPE_IQD:
3628 dev = alloc_netdev(0, "hsi%d", ether_setup);
3629 break;
500f83ab
UB		 3630 case QETH_CARD_TYPE_OSN:
3631 dev = alloc_netdev(0, "osn%d", ether_setup);
3632 break;
1da177e4
LT		 3633 default:
3634 dev = alloc_etherdev(0);
3635 }
3636 return dev;
3637}
3638
3639/*hard_header fake function; used in case fake_ll is set */
3640static int
3641qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3642 unsigned short type, void *daddr, void *saddr,
3643 unsigned len)
3644{
e23dd9cd
FP		 3645 if(dev->type == ARPHRD_IEEE802_TR){
3646 struct trh_hdr *hdr;
3647 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3648 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3649 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3650 return QETH_FAKE_LL_LEN_TR;
3651
3652 } else {
3653 struct ethhdr *hdr;
3654 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3655 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3656 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3657 if (type != ETH_P_802_3)
3658 hdr->h_proto = htons(type);
3659 else
3660 hdr->h_proto = htons(len);
3661 return QETH_FAKE_LL_LEN_ETH;
1da177e4 3662
e23dd9cd 3663 }
1da177e4
LT		 3664}
3665
3666static inline int
3667qeth_send_packet(struct qeth_card *, struct sk_buff *);
3668
3669static int
3670qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3671{
3672 int rc;
3673 struct qeth_card *card;
3674
3675 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3676 card = (struct qeth_card *)dev->priv;
3677 if (skb==NULL) {
3678 card->stats.tx_dropped++;
3679 card->stats.tx_errors++;
3680 /* return OK; otherwise ksoftirqd goes to 100% */
3681 return NETDEV_TX_OK;
3682 }
3683 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3684 card->stats.tx_dropped++;
3685 card->stats.tx_errors++;
3686 card->stats.tx_carrier_errors++;
3687 dev_kfree_skb_any(skb);
3688 /* return OK; otherwise ksoftirqd goes to 100% */
3689 return NETDEV_TX_OK;
3690 }
3691#ifdef CONFIG_QETH_PERF_STATS
3692 card->perf_stats.outbound_cnt++;
3693 card->perf_stats.outbound_start_time = qeth_get_micros();
3694#endif
3695 netif_stop_queue(dev);
3696 if ((rc = qeth_send_packet(card, skb))) {
3697 if (rc == -EBUSY) {
3698 return NETDEV_TX_BUSY;
3699 } else {
3700 card->stats.tx_errors++;
3701 card->stats.tx_dropped++;
3702 dev_kfree_skb_any(skb);
3703 /*set to OK; otherwise ksoftirqd goes to 100% */
3704 rc = NETDEV_TX_OK;
3705 }
3706 }
3707 netif_wake_queue(dev);
3708#ifdef CONFIG_QETH_PERF_STATS
3709 card->perf_stats.outbound_time += qeth_get_micros() -
3710 card->perf_stats.outbound_start_time;
3711#endif
3712 return rc;
3713}
3714
3715static int
3716qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3717{
3718 int rc = 0;
3719#ifdef CONFIG_QETH_VLAN
3720 struct vlan_group *vg;
3721 int i;
3722
3723 if (!(vg = card->vlangrp))
3724 return rc;
3725
3726 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3727 if (vg->vlan_devices[i] == dev){
3728 rc = QETH_VLAN_CARD;
3729 break;
3730 }
3731 }
6c6b3e7c
FP		 3732 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3733 return 0;
3734
1da177e4
LT		 3735#endif
3736 return rc;
3737}
3738
3739static int
3740qeth_verify_dev(struct net_device *dev)
3741{
3742 struct qeth_card *card;
3743 unsigned long flags;
3744 int rc = 0;
3745
3746 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3747 list_for_each_entry(card, &qeth_card_list.list, list){
3748 if (card->dev == dev){
3749 rc = QETH_REAL_CARD;
3750 break;
3751 }
3752 rc = qeth_verify_vlan_dev(dev, card);
3753 if (rc)
3754 break;
3755 }
3756 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3757
3758 return rc;
3759}
3760
3761static struct qeth_card *
3762qeth_get_card_from_dev(struct net_device *dev)
3763{
3764 struct qeth_card *card = NULL;
3765 int rc;
3766
3767 rc = qeth_verify_dev(dev);
3768 if (rc == QETH_REAL_CARD)
3769 card = (struct qeth_card *)dev->priv;
3770 else if (rc == QETH_VLAN_CARD)
3771 card = (struct qeth_card *)
3772 VLAN_DEV_INFO(dev)->real_dev->priv;
3773
3774 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3775 return card ;
3776}
3777
3778static void
3779qeth_tx_timeout(struct net_device *dev)
3780{
3781 struct qeth_card *card;
3782
3783 card = (struct qeth_card *) dev->priv;
3784 card->stats.tx_errors++;
3785 qeth_schedule_recovery(card);
3786}
3787
3788static int
3789qeth_open(struct net_device *dev)
3790{
3791 struct qeth_card *card;
3792
3793 QETH_DBF_TEXT(trace, 4, "qethopen");
3794
3795 card = (struct qeth_card *) dev->priv;
3796
3797 if (card->state != CARD_STATE_SOFTSETUP)
3798 return -ENODEV;
3799
500f83ab
UB		 3800 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3801 (card->options.layer2) &&
e08d88cc 3802 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
1da177e4
LT		 3803 QETH_DBF_TEXT(trace,4,"nomacadr");
3804 return -EPERM;
3805 }
3806 card->dev->flags |= IFF_UP;
3807 netif_start_queue(dev);
3808 card->data.state = CH_STATE_UP;
3809 card->state = CARD_STATE_UP;
3810
4965e97f
FP		 3811 if (!card->lan_online && netif_carrier_ok(dev))
3812 netif_carrier_off(dev);
1da177e4
LT		 3813 return 0;
3814}
3815
3816static int
3817qeth_stop(struct net_device *dev)
3818{
3819 struct qeth_card *card;
3820
3821 QETH_DBF_TEXT(trace, 4, "qethstop");
3822
3823 card = (struct qeth_card *) dev->priv;
3824
3825 netif_stop_queue(dev);
3826 card->dev->flags &= ~IFF_UP;
3827 if (card->state == CARD_STATE_UP)
3828 card->state = CARD_STATE_SOFTSETUP;
3829 return 0;
3830}
3831
3832static inline int
3833qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3834{
3835 int cast_type = RTN_UNSPEC;
3836
500f83ab
UB		 3837 if (card->info.type == QETH_CARD_TYPE_OSN)
3838 return cast_type;
3839
1da177e4
LT		 3840 if (skb->dst && skb->dst->neighbour){
3841 cast_type = skb->dst->neighbour->type;
3842 if ((cast_type == RTN_BROADCAST) ||
3843 (cast_type == RTN_MULTICAST) ||
3844 (cast_type == RTN_ANYCAST))
3845 return cast_type;
3846 else
3847 return RTN_UNSPEC;
3848 }
3849 /* try something else */
3850 if (skb->protocol == ETH_P_IPV6)
3851 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3852 else if (skb->protocol == ETH_P_IP)
3853 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3854 /* ... */
3855 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3856 return RTN_BROADCAST;
3857 else {
3858 u16 hdr_mac;
3859
3860 hdr_mac = *((u16 *)skb->data);
3861 /* tr multicast? */
3862 switch (card->info.link_type) {
3863 case QETH_LINK_TYPE_HSTR:
3864 case QETH_LINK_TYPE_LANE_TR:
3865 if ((hdr_mac == QETH_TR_MAC_NC) ||
3866 (hdr_mac == QETH_TR_MAC_C))
3867 return RTN_MULTICAST;
1380fee2 3868 break;
1da177e4
LT		 3869 /* eth or so multicast? */
3870 default:
3871 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3872 (hdr_mac == QETH_ETH_MAC_V6))
3873 return RTN_MULTICAST;
3874 }
3875 }
3876 return cast_type;
3877}
3878
3879static inline int
3880qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3881 int ipv, int cast_type)
3882{
3883 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3884 return card->qdio.default_out_queue;
3885 switch (card->qdio.no_out_queues) {
3886 case 4:
3887 if (cast_type && card->info.is_multicast_different)
3888 return card->info.is_multicast_different &
3889 (card->qdio.no_out_queues - 1);
3890 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3891 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3892 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3893 return 3;
3894 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3895 return 2;
3896 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3897 return 1;
3898 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3899 return 0;
3900 }
3901 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3902 return 3 - (skb->nh.iph->tos >> 6);
3903 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3904 /* TODO: IPv6!!! */
3905 }
3906 return card->qdio.default_out_queue;
3907 case 1: /* fallthrough for single-out-queue 1920-device */
3908 default:
3909 return card->qdio.default_out_queue;
3910 }
3911}
3912
3913static inline int
3914qeth_get_ip_version(struct sk_buff *skb)
3915{
3916 switch (skb->protocol) {
3917 case ETH_P_IPV6:
3918 return 6;
3919 case ETH_P_IP:
3920 return 4;
3921 default:
3922 return 0;
3923 }
3924}
3925
3926static inline int
3927qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3928 struct qeth_hdr **hdr, int ipv)
3929{
500f83ab 3930 int rc = 0;
1da177e4
LT		 3931#ifdef CONFIG_QETH_VLAN
3932 u16 *tag;
3933#endif
3934
3935 QETH_DBF_TEXT(trace, 6, "prepskb");
500f83ab
UB		 3936 if (card->info.type == QETH_CARD_TYPE_OSN) {
3937 *hdr = (struct qeth_hdr *)(*skb)->data;
3938 return rc;
3939 }
9cb90de8
FP		 3940 rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3941 if (rc)
3942 return rc;
1da177e4
LT		 3943#ifdef CONFIG_QETH_VLAN
3944 if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3945 ((ipv == 6) || card->options.layer2) ) {
3946 /*
3947 * Move the mac addresses (6 bytes src, 6 bytes dest)
3948 * to the beginning of the new header. We are using three
3949 * memcpys instead of one memmove to save cycles.
3950 */
3951 skb_push(*skb, VLAN_HLEN);
3952 memcpy((*skb)->data, (*skb)->data + 4, 4);
3953 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3954 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3955 tag = (u16 *)((*skb)->data + 12);
3956 /*
3957 * first two bytes = ETH_P_8021Q (0x8100)
3958 * second two bytes = VLANID
3959 */
3960 *tag = __constant_htons(ETH_P_8021Q);
3961 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3962 }
3963#endif
3964 *hdr = (struct qeth_hdr *)
3965 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3966 if (hdr == NULL)
3967 return -EINVAL;
3968 return 0;
3969}
3970
3971static inline u8
3972qeth_get_qeth_hdr_flags4(int cast_type)
3973{
3974 if (cast_type == RTN_MULTICAST)
3975 return QETH_CAST_MULTICAST;
3976 if (cast_type == RTN_BROADCAST)
3977 return QETH_CAST_BROADCAST;
3978 return QETH_CAST_UNICAST;
3979}
3980
3981static inline u8
3982qeth_get_qeth_hdr_flags6(int cast_type)
3983{
3984 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3985 if (cast_type == RTN_MULTICAST)
3986 return ct | QETH_CAST_MULTICAST;
3987 if (cast_type == RTN_ANYCAST)
3988 return ct | QETH_CAST_ANYCAST;
3989 if (cast_type == RTN_BROADCAST)
3990 return ct | QETH_CAST_BROADCAST;
3991 return ct | QETH_CAST_UNICAST;
3992}
3993
3994static inline void
3995qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3996 struct sk_buff *skb)
3997{
3998 __u16 hdr_mac;
3999
4000 if (!memcmp(skb->data+QETH_HEADER_SIZE,
4001 skb->dev->broadcast,6)) { /* broadcast? */
4002 *(__u32 *)hdr->hdr.l2.flags |=
4003 QETH_LAYER2_FLAG_BROADCAST << 8;
4004 return;
4005 }
4006 hdr_mac=*((__u16*)skb->data);
4007 /* tr multicast? */
4008 switch (card->info.link_type) {
4009 case QETH_LINK_TYPE_HSTR:
4010 case QETH_LINK_TYPE_LANE_TR:
4011 if ((hdr_mac == QETH_TR_MAC_NC) ||
4012 (hdr_mac == QETH_TR_MAC_C) )
4013 *(__u32 *)hdr->hdr.l2.flags |=
4014 QETH_LAYER2_FLAG_MULTICAST << 8;
4015 else
4016 *(__u32 *)hdr->hdr.l2.flags |=
4017 QETH_LAYER2_FLAG_UNICAST << 8;
4018 break;
4019 /* eth or so multicast? */
4020 default:
4021 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4022 (hdr_mac==QETH_ETH_MAC_V6) )
4023 *(__u32 *)hdr->hdr.l2.flags |=
4024 QETH_LAYER2_FLAG_MULTICAST << 8;
4025 else
4026 *(__u32 *)hdr->hdr.l2.flags |=
4027 QETH_LAYER2_FLAG_UNICAST << 8;
4028 }
4029}
4030
4031static inline void
4032qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4033 struct sk_buff *skb, int cast_type)
4034{
4035 memset(hdr, 0, sizeof(struct qeth_hdr));
4036 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4037
4038 /* set byte 0 to "0x02" and byte 3 to casting flags */
4039 if (cast_type==RTN_MULTICAST)
4040 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4041 else if (cast_type==RTN_BROADCAST)
4042 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4043 else
4044 qeth_layer2_get_packet_type(card, hdr, skb);
4045
4046 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4047#ifdef CONFIG_QETH_VLAN
4048 /* VSWITCH relies on the VLAN
4049 * information to be present in
4050 * the QDIO header */
4051 if ((card->vlangrp != NULL) &&
4052 vlan_tx_tag_present(skb)) {
4053 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4054 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4055 }
4056#endif
4057}
4058
4059void
4060qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4061 struct sk_buff *skb, int ipv, int cast_type)
4062{
4063 QETH_DBF_TEXT(trace, 6, "fillhdr");
4064
4065 memset(hdr, 0, sizeof(struct qeth_hdr));
4066 if (card->options.layer2) {
4067 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4068 return;
4069 }
4070 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4071 hdr->hdr.l3.ext_flags = 0;
4072#ifdef CONFIG_QETH_VLAN
4073 /*
4074 * before we're going to overwrite this location with next hop ip.
4075 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4076 */
4077 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4078 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4079 QETH_HDR_EXT_VLAN_FRAME :
4080 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4081 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4082 }
4083#endif /* CONFIG_QETH_VLAN */
4084 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4085 if (ipv == 4) { /* IPv4 */
4086 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4087 memset(hdr->hdr.l3.dest_addr, 0, 12);
4088 if ((skb->dst) && (skb->dst->neighbour)) {
4089 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4090 *((u32 *) skb->dst->neighbour->primary_key);
4091 } else {
4092 /* fill in destination address used in ip header */
4093 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4094 }
4095 } else if (ipv == 6) { /* IPv6 or passthru */
4096 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4097 if ((skb->dst) && (skb->dst->neighbour)) {
4098 memcpy(hdr->hdr.l3.dest_addr,
4099 skb->dst->neighbour->primary_key, 16);
4100 } else {
4101 /* fill in destination address used in ip header */
4102 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4103 }
4104 } else { /* passthrough */
e23dd9cd 4105 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
9a455819
FP		 4106 !memcmp(skb->data + sizeof(struct qeth_hdr) +
4107 sizeof(__u16), skb->dev->broadcast, 6)) {
4108 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4109 QETH_HDR_PASSTHRU;
e23dd9cd 4110 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
1da177e4 4111 skb->dev->broadcast, 6)) { /* broadcast? */
e23dd9cd
FP		 4112 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4113 QETH_HDR_PASSTHRU;
1da177e4
LT		 4114 } else {
4115 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4116 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4117 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4118 }
4119 }
4120}
4121
1da177e4
LT		 4122static inline void
4123__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
05e08a2a 4124 int is_tso, int *next_element_to_fill)
1da177e4
LT		 4125{
4126 int length = skb->len;
4127 int length_here;
4128 int element;
4129 char *data;
05e08a2a 4130 int first_lap ;
1da177e4
LT		 4131
4132 element = *next_element_to_fill;
4133 data = skb->data;
05e08a2a
FP		 4134 first_lap = (is_tso == 0 ? 1 : 0);
4135
1da177e4
LT		 4136 while (length > 0) {
4137 /* length_here is the remaining amount of data in this page */
4138 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4139 if (length < length_here)
4140 length_here = length;
05e08a2a 4141
1da177e4
LT		 4142 buffer->element[element].addr = data;
4143 buffer->element[element].length = length_here;
4144 length -= length_here;
05e08a2a 4145 if (!length) {
1da177e4
LT		 4146 if (first_lap)
4147 buffer->element[element].flags = 0;
4148 else
4149 buffer->element[element].flags =
4150 SBAL_FLAGS_LAST_FRAG;
4151 } else {
4152 if (first_lap)
4153 buffer->element[element].flags =
4154 SBAL_FLAGS_FIRST_FRAG;
4155 else
4156 buffer->element[element].flags =
4157 SBAL_FLAGS_MIDDLE_FRAG;
4158 }
4159 data += length_here;
4160 element++;
4161 first_lap = 0;
4162 }
4163 *next_element_to_fill = element;
4164}
4165
4166static inline int
4167qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4168 struct qeth_qdio_out_buffer *buf,
4169 struct sk_buff *skb)
4170{
4171 struct qdio_buffer *buffer;
05e08a2a
FP		 4172 struct qeth_hdr_tso *hdr;
4173 int flush_cnt = 0, hdr_len, large_send = 0;
1da177e4
LT		 4174
4175 QETH_DBF_TEXT(trace, 6, "qdfillbf");
05e08a2a 4176
1da177e4
LT		 4177 buffer = buf->buffer;
4178 atomic_inc(&skb->users);
4179 skb_queue_tail(&buf->skb_list, skb);
05e08a2a
FP		 4180
4181 hdr = (struct qeth_hdr_tso *) skb->data;
4182 /*check first on TSO ....*/
4183 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4184 int element = buf->next_element_to_fill;
4185
4186 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4187 /*fill first buffer entry only with header information */
4188 buffer->element[element].addr = skb->data;
4189 buffer->element[element].length = hdr_len;
4190 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4191 buf->next_element_to_fill++;
4192 skb->data += hdr_len;
4193 skb->len -= hdr_len;
4194 large_send = 1;
4195 }
1da177e4 4196 if (skb_shinfo(skb)->nr_frags == 0)
05e08a2a 4197 __qeth_fill_buffer(skb, buffer, large_send,
1da177e4
LT		 4198 (int *)&buf->next_element_to_fill);
4199 else
05e08a2a 4200 __qeth_fill_buffer_frag(skb, buffer, large_send,
1da177e4
LT		 4201 (int *)&buf->next_element_to_fill);
4202
4203 if (!queue->do_pack) {
4204 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4205 /* set state to PRIMED -> will be flushed */
4206 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4207 flush_cnt = 1;
4208 } else {
4209 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4210#ifdef CONFIG_QETH_PERF_STATS
4211 queue->card->perf_stats.skbs_sent_pack++;
4212#endif
4213 if (buf->next_element_to_fill >=
4214 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4215 /*
4216 * packed buffer if full -> set state PRIMED
4217 * -> will be flushed
4218 */
4219 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4220 flush_cnt = 1;
4221 }
4222 }
4223 return flush_cnt;
4224}
4225
4226static inline int
4227qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4228 struct sk_buff *skb, struct qeth_hdr *hdr,
4229 int elements_needed,
4230 struct qeth_eddp_context *ctx)
4231{
4232 struct qeth_qdio_out_buffer *buffer;
4233 int buffers_needed = 0;
4234 int flush_cnt = 0;
4235 int index;
4236
4237 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4238
4239 /* spin until we get the queue ... */
973bd993
MS		 4240 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4241 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4242 /* ... now we've got the queue */
4243 index = queue->next_buf_to_fill;
4244 buffer = &queue->bufs[queue->next_buf_to_fill];
4245 /*
4246 * check if buffer is empty to make sure that we do not 'overtake'
4247 * ourselves and try to fill a buffer that is already primed
4248 */
4249 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4250 card->stats.tx_dropped++;
4251 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4252 return -EBUSY;
4253 }
4254 if (ctx == NULL)
4255 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4256 QDIO_MAX_BUFFERS_PER_Q;
4257 else {
4258 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4259 if (buffers_needed < 0) {
4260 card->stats.tx_dropped++;
4261 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4262 return -EBUSY;
4263 }
4264 queue->next_buf_to_fill =
4265 (queue->next_buf_to_fill + buffers_needed) %
4266 QDIO_MAX_BUFFERS_PER_Q;
4267 }
4268 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4269 if (ctx == NULL) {
4270 qeth_fill_buffer(queue, buffer, skb);
4271 qeth_flush_buffers(queue, 0, index, 1);
4272 } else {
4273 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4274 WARN_ON(buffers_needed != flush_cnt);
4275 qeth_flush_buffers(queue, 0, index, flush_cnt);
4276 }
4277 return 0;
4278}
4279
4280static inline int
4281qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4282 struct sk_buff *skb, struct qeth_hdr *hdr,
4283 int elements_needed, struct qeth_eddp_context *ctx)
4284{
4285 struct qeth_qdio_out_buffer *buffer;
4286 int start_index;
4287 int flush_count = 0;
4288 int do_pack = 0;
4289 int tmp;
4290 int rc = 0;
4291
4292 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4293
4294 /* spin until we get the queue ... */
973bd993
MS		 4295 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4296 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
1da177e4
LT		 4297 start_index = queue->next_buf_to_fill;
4298 buffer = &queue->bufs[queue->next_buf_to_fill];
4299 /*
4300 * check if buffer is empty to make sure that we do not 'overtake'
4301 * ourselves and try to fill a buffer that is already primed
4302 */
4303 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4304 card->stats.tx_dropped++;
4305 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4306 return -EBUSY;
4307 }
4308 /* check if we need to switch packing state of this queue */
4309 qeth_switch_to_packing_if_needed(queue);
4310 if (queue->do_pack){
4311 do_pack = 1;
4312 if (ctx == NULL) {
4313 /* does packet fit in current buffer? */
4314 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4315 buffer->next_element_to_fill) < elements_needed){
4316 /* ... no -> set state PRIMED */
4317 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4318 flush_count++;
4319 queue->next_buf_to_fill =
4320 (queue->next_buf_to_fill + 1) %
4321 QDIO_MAX_BUFFERS_PER_Q;
4322 buffer = &queue->bufs[queue->next_buf_to_fill];
4323 /* we did a step forward, so check buffer state
4324 * again */
4325 if (atomic_read(&buffer->state) !=
4326 QETH_QDIO_BUF_EMPTY){
4327 card->stats.tx_dropped++;
4328 qeth_flush_buffers(queue, 0, start_index, flush_count);
4329 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4330 return -EBUSY;
4331 }
4332 }
4333 } else {
4334 /* check if we have enough elements (including following
4335 * free buffers) to handle eddp context */
4336 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4337 printk("eddp tx_dropped 1\n");
4338 card->stats.tx_dropped++;
4339 rc = -EBUSY;
4340 goto out;
4341 }
4342 }
4343 }
4344 if (ctx == NULL)
4345 tmp = qeth_fill_buffer(queue, buffer, skb);
4346 else {
4347 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4348 if (tmp < 0) {
4349 printk("eddp tx_dropped 2\n");
4350 card->stats.tx_dropped++;
4351 rc = - EBUSY;
4352 goto out;
4353 }
4354 }
4355 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4356 QDIO_MAX_BUFFERS_PER_Q;
4357 flush_count += tmp;
4358out:
4359 if (flush_count)
4360 qeth_flush_buffers(queue, 0, start_index, flush_count);
d805d7c6
FP		 4361 else if (!atomic_read(&queue->set_pci_flags_count))
4362 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
1da177e4
LT		 4363 /*
4364 * queue->state will go from LOCKED -> UNLOCKED or from
4365 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4366 * (switch packing state or flush buffer to get another pci flag out).
4367 * In that case we will enter this loop
4368 */
4369 while (atomic_dec_return(&queue->state)){
4370 flush_count = 0;
4371 start_index = queue->next_buf_to_fill;
4372 /* check if we can go back to non-packing state */
4373 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4374 /*
4375 * check if we need to flush a packing buffer to get a pci
4376 * flag out on the queue
4377 */
4378 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4379 flush_count += qeth_flush_buffers_on_no_pci(queue);
4380 if (flush_count)
4381 qeth_flush_buffers(queue, 0, start_index, flush_count);
4382 }
4383 /* at this point the queue is UNLOCKED again */
4384#ifdef CONFIG_QETH_PERF_STATS
4385 if (do_pack)
4386 queue->card->perf_stats.bufs_sent_pack += flush_count;
4387#endif /* CONFIG_QETH_PERF_STATS */
4388
4389 return rc;
4390}
4391
05e08a2a 4392static inline int
9cb90de8
FP		 4393qeth_get_elements_no(struct qeth_card *card, void *hdr,
4394 struct sk_buff *skb, int elems)
05e08a2a
FP		 4395{
4396 int elements_needed = 0;
4397
4398 if (skb_shinfo(skb)->nr_frags > 0) {
4399 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4400 }
4401 if (elements_needed == 0 )
4402 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4403 + skb->len) >> PAGE_SHIFT);
9cb90de8 4404 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
05e08a2a 4405 PRINT_ERR("qeth_do_send_packet: invalid size of "
9cb90de8
FP		 4406 "IP packet (Number=%d / Length=%d). Discarded.\n",
4407 (elements_needed+elems), skb->len);
05e08a2a
FP		 4408 return 0;
4409 }
4410 return elements_needed;
4411}
4412
1da177e4
LT		 4413static inline int
4414qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4415{
4416 int ipv = 0;
4417 int cast_type;
4418 struct qeth_qdio_out_q *queue;
f3d242e8 4419 struct qeth_hdr *hdr = NULL;
1da177e4
LT		 4420 int elements_needed = 0;
4421 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4422 struct qeth_eddp_context *ctx = NULL;
95f6b5a1 4423 int tx_bytes = skb->len;
1da177e4
LT		 4424 int rc;
4425
4426 QETH_DBF_TEXT(trace, 6, "sendpkt");
4427
4428 if (!card->options.layer2) {
4429 ipv = qeth_get_ip_version(skb);
4430 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4431 if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4432 card->stats.tx_dropped++;
4433 dev_kfree_skb_irq(skb);
4434 return 0;
4435 }
e23dd9cd
FP		 4436 if(card->dev->type == ARPHRD_IEEE802_TR){
4437 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4438 } else {
4439 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4440 }
1da177e4
LT		 4441 }
4442 }
500f83ab
UB		 4443 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4444 (skb->protocol == htons(ETH_P_IPV6))) {
4445 dev_kfree_skb_any(skb);
4446 return 0;
4447 }
1da177e4 4448 cast_type = qeth_get_cast_type(card, skb);
500f83ab
UB		 4449 if ((cast_type == RTN_BROADCAST) &&
4450 (card->info.broadcast_capable == 0)){
1da177e4
LT		 4451 card->stats.tx_dropped++;
4452 card->stats.tx_errors++;
4453 dev_kfree_skb_any(skb);
4454 return NETDEV_TX_OK;
4455 }
4456 queue = card->qdio.out_qs
4457 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4458
4459 if (skb_shinfo(skb)->tso_size)
4460 large_send = card->options.large_send;
4461
1da177e4
LT		 4462 /*are we able to do TSO ? If so ,prepare and send it from here */
4463 if ((large_send == QETH_LARGE_SEND_TSO) &&
4464 (cast_type == RTN_UNSPEC)) {
05e08a2a
FP		 4465 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4466 if (rc) {
4467 card->stats.tx_dropped++;
4468 card->stats.tx_errors++;
4469 dev_kfree_skb_any(skb);
4470 return NETDEV_TX_OK;
4471 }
4472 elements_needed++;
4473 } else {
4474 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4475 QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4476 return rc;
4477 }
500f83ab
UB		 4478 if (card->info.type != QETH_CARD_TYPE_OSN)
4479 qeth_fill_header(card, hdr, skb, ipv, cast_type);
1da177e4
LT		 4480 }
4481
1da177e4
LT		 4482 if (large_send == QETH_LARGE_SEND_EDDP) {
4483 ctx = qeth_eddp_create_context(card, skb, hdr);
4484 if (ctx == NULL) {
4485 PRINT_WARN("could not create eddp context\n");
4486 return -EINVAL;
4487 }
4488 } else {
9cb90de8
FP		 4489 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4490 elements_needed);
4491 if (!elems)
1da177e4 4492 return -EINVAL;
9cb90de8 4493 elements_needed += elems;
1da177e4
LT		 4494 }
4495
4496 if (card->info.type != QETH_CARD_TYPE_IQD)
4497 rc = qeth_do_send_packet(card, queue, skb, hdr,
4498 elements_needed, ctx);
4499 else
4500 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4501 elements_needed, ctx);
1da177e4
LT		 4502 if (!rc){
4503 card->stats.tx_packets++;
95f6b5a1 4504 card->stats.tx_bytes += tx_bytes;
1da177e4 4505#ifdef CONFIG_QETH_PERF_STATS
05e08a2a
FP		 4506 if (skb_shinfo(skb)->tso_size &&
4507 !(large_send == QETH_LARGE_SEND_NO)) {
1da177e4
LT		 4508 card->perf_stats.large_send_bytes += skb->len;
4509 card->perf_stats.large_send_cnt++;
4510 }
4511 if (skb_shinfo(skb)->nr_frags > 0){
4512 card->perf_stats.sg_skbs_sent++;
4513 /* nr_frags + skb->data */
4514 card->perf_stats.sg_frags_sent +=
4515 skb_shinfo(skb)->nr_frags + 1;
4516 }
4517#endif /* CONFIG_QETH_PERF_STATS */
4518 }
4519 if (ctx != NULL) {
4520 /* drop creator's reference */
4521 qeth_eddp_put_context(ctx);
4522 /* free skb; it's not referenced by a buffer */
4523 if (rc == 0)
4524 dev_kfree_skb_any(skb);
4525
4526 }
4527 return rc;
4528}
4529
4530static int
4531qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4532{
4533 struct qeth_card *card = (struct qeth_card *) dev->priv;
4534 int rc = 0;
4535
4536 switch(regnum){
4537 case MII_BMCR: /* Basic mode control register */
4538 rc = BMCR_FULLDPLX;
4539 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
500f83ab 4540 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
1da177e4
LT		 4541 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4542 rc |= BMCR_SPEED100;
4543 break;
4544 case MII_BMSR: /* Basic mode status register */
4545 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4546 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4547 BMSR_100BASE4;
4548 break;
4549 case MII_PHYSID1: /* PHYS ID 1 */
4550 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4551 dev->dev_addr[2];
4552 rc = (rc >> 5) & 0xFFFF;
4553 break;
4554 case MII_PHYSID2: /* PHYS ID 2 */
4555 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4556 break;
4557 case MII_ADVERTISE: /* Advertisement control reg */
4558 rc = ADVERTISE_ALL;
4559 break;
4560 case MII_LPA: /* Link partner ability reg */
4561 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4562 LPA_100BASE4 | LPA_LPACK;
4563 break;
4564 case MII_EXPANSION: /* Expansion register */
4565 break;
4566 case MII_DCOUNTER: /* disconnect counter */
4567 break;
4568 case MII_FCSCOUNTER: /* false carrier counter */
4569 break;
4570 case MII_NWAYTEST: /* N-way auto-neg test register */
4571 break;
4572 case MII_RERRCOUNTER: /* rx error counter */
4573 rc = card->stats.rx_errors;
4574 break;
4575 case MII_SREVISION: /* silicon revision */
4576 break;
4577 case MII_RESV1: /* reserved 1 */
4578 break;
4579 case MII_LBRERROR: /* loopback, rx, bypass error */
4580 break;
4581 case MII_PHYADDR: /* physical address */
4582 break;
4583 case MII_RESV2: /* reserved 2 */
4584 break;
4585 case MII_TPISTATUS: /* TPI status for 10mbps */
4586 break;
4587 case MII_NCONFIG: /* network interface config */
4588 break;
4589 default:
1da177e4
LT		 4590 break;
4591 }
4592 return rc;
4593}
4594
1da177e4
LT		 4595
4596static inline const char *
4597qeth_arp_get_error_cause(int *rc)
4598{
4599 switch (*rc) {
4600 case QETH_IPA_ARP_RC_FAILED:
4601 *rc = -EIO;
4602 return "operation failed";
4603 case QETH_IPA_ARP_RC_NOTSUPP:
4604 *rc = -EOPNOTSUPP;
4605 return "operation not supported";
4606 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4607 *rc = -EINVAL;
4608 return "argument out of range";
4609 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4610 *rc = -EOPNOTSUPP;
4611 return "query operation not supported";
4612 case QETH_IPA_ARP_RC_Q_NO_DATA:
4613 *rc = -ENOENT;
4614 return "no query data available";
4615 default:
4616 return "unknown error";
4617 }
4618}
4619
4620static int
4621qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4622 __u16, long);
4623
4624static int
4625qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4626{
4627 int tmp;
4628 int rc;
4629
4630 QETH_DBF_TEXT(trace,3,"arpstnoe");
4631
f3d242e8
FP		 4632 /*
4633 * currently GuestLAN only supports the ARP assist function
4634 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4635 * thus we say EOPNOTSUPP for this ARP function
4636 */
1da177e4
LT		 4637 if (card->info.guestlan)
4638 return -EOPNOTSUPP;
4639 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4640 PRINT_WARN("ARP processing not supported "
4641 "on %s!\n", QETH_CARD_IFNAME(card));
4642 return -EOPNOTSUPP;
4643 }
4644 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4645 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4646 no_entries);
4647 if (rc) {
4648 tmp = rc;
4649 PRINT_WARN("Could not set number of ARP entries on %s: "
4650 "%s (0x%x/%d)\n",
4651 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4652 tmp, tmp);
4653 }
4654 return rc;
4655}
4656
4657static inline void
4658qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4659 struct qeth_arp_query_data *qdata,
4660 int entry_size, int uentry_size)
4661{
4662 char *entry_ptr;
4663 char *uentry_ptr;
4664 int i;
4665
4666 entry_ptr = (char *)&qdata->data;
4667 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4668 for (i = 0; i < qdata->no_entries; ++i){
4669 /* strip off 32 bytes "media specific information" */
4670 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4671 entry_ptr += entry_size;
4672 uentry_ptr += uentry_size;
4673 }
4674}
4675
4676static int
4677qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4678 unsigned long data)
4679{
4680 struct qeth_ipa_cmd *cmd;
4681 struct qeth_arp_query_data *qdata;
4682 struct qeth_arp_query_info *qinfo;
4683 int entry_size;
4684 int uentry_size;
4685 int i;
4686
4687 QETH_DBF_TEXT(trace,4,"arpquecb");
4688
4689 qinfo = (struct qeth_arp_query_info *) reply->param;
4690 cmd = (struct qeth_ipa_cmd *) data;
4691 if (cmd->hdr.return_code) {
4692 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4693 return 0;
4694 }
4695 if (cmd->data.setassparms.hdr.return_code) {
4696 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4697 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4698 return 0;
4699 }
4700 qdata = &cmd->data.setassparms.data.query_arp;
4701 switch(qdata->reply_bits){
4702 case 5:
4703 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4704 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4705 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4706 break;
4707 case 7:
4708 /* fall through to default */
4709 default:
4710 /* tr is the same as eth -> entry7 */
4711 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4712 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4713 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4714 break;
4715 }
4716 /* check if there is enough room in userspace */
4717 if ((qinfo->udata_len - qinfo->udata_offset) <
4718 qdata->no_entries * uentry_size){
4719 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4720 cmd->hdr.return_code = -ENOMEM;
4721 PRINT_WARN("query ARP user space buffer is too small for "
4722 "the returned number of ARP entries. "
4723 "Aborting query!\n");
4724 goto out_error;
4725 }
4726 QETH_DBF_TEXT_(trace, 4, "anore%i",
4727 cmd->data.setassparms.hdr.number_of_replies);
4728 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4729 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4730
4731 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4732 /* strip off "media specific information" */
4733 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4734 uentry_size);
4735 } else
4736 /*copy entries to user buffer*/
4737 memcpy(qinfo->udata + qinfo->udata_offset,
4738 (char *)&qdata->data, qdata->no_entries*uentry_size);
4739
4740 qinfo->no_entries += qdata->no_entries;
4741 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4742 /* check if all replies received ... */
4743 if (cmd->data.setassparms.hdr.seq_no <
4744 cmd->data.setassparms.hdr.number_of_replies)
4745 return 1;
4746 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4747 /* keep STRIP_ENTRIES flag so the user program can distinguish
4748 * stripped entries from normal ones */
4749 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4750 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4751 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4752 return 0;
4753out_error:
4754 i = 0;
4755 memcpy(qinfo->udata, &i, 4);
4756 return 0;
4757}
4758
4759static int
4760qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4761 int len, int (*reply_cb)(struct qeth_card *,
4762 struct qeth_reply *,
4763 unsigned long),
4764 void *reply_param)
4765{
4766 QETH_DBF_TEXT(trace,4,"sendarp");
4767
4768 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4769 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4770 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4771 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4772 reply_cb, reply_param);
4773}
4774
4775static int
4776qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4777 int len, int (*reply_cb)(struct qeth_card *,
4778 struct qeth_reply *,
4779 unsigned long),
4780 void *reply_param)
4781{
4782 u16 s1, s2;
4783
4784 QETH_DBF_TEXT(trace,4,"sendsnmp");
4785
4786 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4787 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4788 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4789 /* adjust PDU length fields in IPA_PDU_HEADER */
4790 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4791 s2 = (u32) len;
4792 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4793 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4794 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4795 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4796 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4797 reply_cb, reply_param);
4798}
4799
4800static struct qeth_cmd_buffer *
4801qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4802 __u16, __u16, enum qeth_prot_versions);
4803static int
4804qeth_arp_query(struct qeth_card *card, char *udata)
4805{
4806 struct qeth_cmd_buffer *iob;
4807 struct qeth_arp_query_info qinfo = {0, };
4808 int tmp;
4809 int rc;
4810
4811 QETH_DBF_TEXT(trace,3,"arpquery");
4812
1da177e4
LT		 4813 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4814 IPA_ARP_PROCESSING)) {
4815 PRINT_WARN("ARP processing not supported "
4816 "on %s!\n", QETH_CARD_IFNAME(card));
4817 return -EOPNOTSUPP;
4818 }
4819 /* get size of userspace buffer and mask_bits -> 6 bytes */
4820 if (copy_from_user(&qinfo, udata, 6))
4821 return -EFAULT;
4822 if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4823 return -ENOMEM;
4824 memset(qinfo.udata, 0, qinfo.udata_len);
4825 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4826 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4827 IPA_CMD_ASS_ARP_QUERY_INFO,
4828 sizeof(int),QETH_PROT_IPV4);
4829
4830 rc = qeth_send_ipa_arp_cmd(card, iob,
4831 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4832 qeth_arp_query_cb, (void *)&qinfo);
4833 if (rc) {
4834 tmp = rc;
4835 PRINT_WARN("Error while querying ARP cache on %s: %s "
4836 "(0x%x/%d)\n",
4837 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4838 tmp, tmp);
4839 copy_to_user(udata, qinfo.udata, 4);
4840 } else {
4841 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4842 }
4843 kfree(qinfo.udata);
4844 return rc;
4845}
4846
4847/**
4848 * SNMP command callback
4849 */
4850static int
4851qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4852 unsigned long sdata)
4853{
4854 struct qeth_ipa_cmd *cmd;
4855 struct qeth_arp_query_info *qinfo;
4856 struct qeth_snmp_cmd *snmp;
4857 unsigned char *data;
4858 __u16 data_len;
4859
4860 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4861
4862 cmd = (struct qeth_ipa_cmd *) sdata;
4863 data = (unsigned char *)((char *)cmd - reply->offset);
4864 qinfo = (struct qeth_arp_query_info *) reply->param;
4865 snmp = &cmd->data.setadapterparms.data.snmp;
4866
4867 if (cmd->hdr.return_code) {
4868 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4869 return 0;
4870 }
4871 if (cmd->data.setadapterparms.hdr.return_code) {
4872 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4873 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4874 return 0;
4875 }
4876 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4877 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4878 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4879 else
4880 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4881
4882 /* check if there is enough room in userspace */
4883 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4884 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4885 cmd->hdr.return_code = -ENOMEM;
4886 return 0;
4887 }
4888 QETH_DBF_TEXT_(trace, 4, "snore%i",
4889 cmd->data.setadapterparms.hdr.used_total);
4890 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4891 /*copy entries to user buffer*/
4892 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4893 memcpy(qinfo->udata + qinfo->udata_offset,
4894 (char *)snmp,
4895 data_len + offsetof(struct qeth_snmp_cmd,data));
4896 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4897 } else {
4898 memcpy(qinfo->udata + qinfo->udata_offset,
4899 (char *)&snmp->request, data_len);
4900 }
4901 qinfo->udata_offset += data_len;
4902 /* check if all replies received ... */
4903 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4904 cmd->data.setadapterparms.hdr.used_total);
4905 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4906 cmd->data.setadapterparms.hdr.seq_no);
4907 if (cmd->data.setadapterparms.hdr.seq_no <
4908 cmd->data.setadapterparms.hdr.used_total)
4909 return 1;
4910 return 0;
4911}
4912
4913static struct qeth_cmd_buffer *
4914qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4915 enum qeth_prot_versions );
4916
4917static struct qeth_cmd_buffer *
4918qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4919{
4920 struct qeth_cmd_buffer *iob;
4921 struct qeth_ipa_cmd *cmd;
4922
4923 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4924 QETH_PROT_IPV4);
4925 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4926 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4927 cmd->data.setadapterparms.hdr.command_code = command;
4928 cmd->data.setadapterparms.hdr.used_total = 1;
4929 cmd->data.setadapterparms.hdr.seq_no = 1;
4930
4931 return iob;
4932}
4933
4934/**
4935 * function to send SNMP commands to OSA-E card
4936 */
4937static int
4938qeth_snmp_command(struct qeth_card *card, char *udata)
4939{
4940 struct qeth_cmd_buffer *iob;
4941 struct qeth_ipa_cmd *cmd;
4942 struct qeth_snmp_ureq *ureq;
4943 int req_len;
4944 struct qeth_arp_query_info qinfo = {0, };
4945 int rc = 0;
4946
4947 QETH_DBF_TEXT(trace,3,"snmpcmd");
4948
4949 if (card->info.guestlan)
4950 return -EOPNOTSUPP;
4951
4952 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4953 (!card->options.layer2) ) {
4954 PRINT_WARN("SNMP Query MIBS not supported "
4955 "on %s!\n", QETH_CARD_IFNAME(card));
4956 return -EOPNOTSUPP;
4957 }
4958 /* skip 4 bytes (data_len struct member) to get req_len */
4959 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4960 return -EFAULT;
4961 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4962 if (!ureq) {
4963 QETH_DBF_TEXT(trace, 2, "snmpnome");
4964 return -ENOMEM;
4965 }
4966 if (copy_from_user(ureq, udata,
4967 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4968 kfree(ureq);
4969 return -EFAULT;
4970 }
4971 qinfo.udata_len = ureq->hdr.data_len;
4972 if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4973 kfree(ureq);
4974 return -ENOMEM;
4975 }
4976 memset(qinfo.udata, 0, qinfo.udata_len);
4977 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4978
4979 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4980 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4981 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4982 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4983 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4984 qeth_snmp_command_cb, (void *)&qinfo);
4985 if (rc)
4986 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4987 QETH_CARD_IFNAME(card), rc);
4988 else
4989 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4990
4991 kfree(ureq);
4992 kfree(qinfo.udata);
4993 return rc;
4994}
4995
4996static int
4997qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4998 unsigned long);
4999
5000static int
6c951b90
FP		 5001qeth_default_setadapterparms_cb(struct qeth_card *card,
5002 struct qeth_reply *reply,
5003 unsigned long data);
5004static int
1da177e4
LT		 5005qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5006 __u16, long,
5007 int (*reply_cb)
5008 (struct qeth_card *, struct qeth_reply *, unsigned long),
5009 void *reply_param);
5010
5011static int
5012qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5013{
5014 struct qeth_cmd_buffer *iob;
5015 char buf[16];
5016 int tmp;
5017 int rc;
5018
5019 QETH_DBF_TEXT(trace,3,"arpadent");
5020
5021 /*
f3d242e8
FP		 5022 * currently GuestLAN only supports the ARP assist function
5023 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5024 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5025 */
5026 if (card->info.guestlan)
5027 return -EOPNOTSUPP;
5028 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5029 PRINT_WARN("ARP processing not supported "
5030 "on %s!\n", QETH_CARD_IFNAME(card));
5031 return -EOPNOTSUPP;
5032 }
5033
5034 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5035 IPA_CMD_ASS_ARP_ADD_ENTRY,
5036 sizeof(struct qeth_arp_cache_entry),
5037 QETH_PROT_IPV4);
5038 rc = qeth_send_setassparms(card, iob,
5039 sizeof(struct qeth_arp_cache_entry),
5040 (unsigned long) entry,
5041 qeth_default_setassparms_cb, NULL);
5042 if (rc) {
5043 tmp = rc;
5044 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5045 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5046 "%s (0x%x/%d)\n",
5047 buf, QETH_CARD_IFNAME(card),
5048 qeth_arp_get_error_cause(&rc), tmp, tmp);
5049 }
5050 return rc;
5051}
5052
5053static int
5054qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5055{
5056 struct qeth_cmd_buffer *iob;
5057 char buf[16] = {0, };
5058 int tmp;
5059 int rc;
5060
5061 QETH_DBF_TEXT(trace,3,"arprment");
5062
5063 /*
f3d242e8
FP		 5064 * currently GuestLAN only supports the ARP assist function
5065 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5066 * thus we say EOPNOTSUPP for this ARP function
1da177e4
LT		 5067 */
5068 if (card->info.guestlan)
5069 return -EOPNOTSUPP;
5070 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5071 PRINT_WARN("ARP processing not supported "
5072 "on %s!\n", QETH_CARD_IFNAME(card));
5073 return -EOPNOTSUPP;
5074 }
5075 memcpy(buf, entry, 12);
5076 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5077 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5078 12,
5079 QETH_PROT_IPV4);
5080 rc = qeth_send_setassparms(card, iob,
5081 12, (unsigned long)buf,
5082 qeth_default_setassparms_cb, NULL);
5083 if (rc) {
5084 tmp = rc;
5085 memset(buf, 0, 16);
5086 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5087 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5088 "%s (0x%x/%d)\n",
5089 buf, QETH_CARD_IFNAME(card),
5090 qeth_arp_get_error_cause(&rc), tmp, tmp);
5091 }
5092 return rc;
5093}
5094
5095static int
5096qeth_arp_flush_cache(struct qeth_card *card)
5097{
5098 int rc;
5099 int tmp;
5100
5101 QETH_DBF_TEXT(trace,3,"arpflush");
5102
5103 /*
f3d242e8
FP		 5104 * currently GuestLAN only supports the ARP assist function
5105 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5106 * thus we say EOPNOTSUPP for this ARP function
5107 */
1da177e4
LT		 5108 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5109 return -EOPNOTSUPP;
5110 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5111 PRINT_WARN("ARP processing not supported "
5112 "on %s!\n", QETH_CARD_IFNAME(card));
5113 return -EOPNOTSUPP;
5114 }
5115 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5116 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5117 if (rc){
5118 tmp = rc;
5119 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5120 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5121 tmp, tmp);
5122 }
5123 return rc;
5124}
5125
5126static int
5127qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5128{
5129 struct qeth_card *card = (struct qeth_card *)dev->priv;
5130 struct qeth_arp_cache_entry arp_entry;
5131 struct mii_ioctl_data *mii_data;
5132 int rc = 0;
5133
5134 if (!card)
5135 return -ENODEV;
5136
5137 if ((card->state != CARD_STATE_UP) &&
5138 (card->state != CARD_STATE_SOFTSETUP))
5139 return -ENODEV;
5140
500f83ab
UB		 5141 if (card->info.type == QETH_CARD_TYPE_OSN)
5142 return -EPERM;
5143
1da177e4
LT		 5144 switch (cmd){
5145 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5146 if ( !capable(CAP_NET_ADMIN) ||
5147 (card->options.layer2) ) {
5148 rc = -EPERM;
5149 break;
5150 }
5151 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5152 break;
5153 case SIOC_QETH_ARP_QUERY_INFO:
5154 if ( !capable(CAP_NET_ADMIN) ||
5155 (card->options.layer2) ) {
5156 rc = -EPERM;
5157 break;
5158 }
5159 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5160 break;
5161 case SIOC_QETH_ARP_ADD_ENTRY:
5162 if ( !capable(CAP_NET_ADMIN) ||
5163 (card->options.layer2) ) {
5164 rc = -EPERM;
5165 break;
5166 }
5167 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5168 sizeof(struct qeth_arp_cache_entry)))
5169 rc = -EFAULT;
5170 else
5171 rc = qeth_arp_add_entry(card, &arp_entry);
5172 break;
5173 case SIOC_QETH_ARP_REMOVE_ENTRY:
5174 if ( !capable(CAP_NET_ADMIN) ||
5175 (card->options.layer2) ) {
5176 rc = -EPERM;
5177 break;
5178 }
5179 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5180 sizeof(struct qeth_arp_cache_entry)))
5181 rc = -EFAULT;
5182 else
5183 rc = qeth_arp_remove_entry(card, &arp_entry);
5184 break;
5185 case SIOC_QETH_ARP_FLUSH_CACHE:
5186 if ( !capable(CAP_NET_ADMIN) ||
5187 (card->options.layer2) ) {
5188 rc = -EPERM;
5189 break;
5190 }
5191 rc = qeth_arp_flush_cache(card);
5192 break;
5193 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5194 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5195 break;
5196 case SIOC_QETH_GET_CARD_TYPE:
5197 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5198 !card->info.guestlan)
5199 return 1;
5200 return 0;
5201 break;
5202 case SIOCGMIIPHY:
5203 mii_data = if_mii(rq);
5204 mii_data->phy_id = 0;
5205 break;
5206 case SIOCGMIIREG:
5207 mii_data = if_mii(rq);
5208 if (mii_data->phy_id != 0)
5209 rc = -EINVAL;
5210 else
5211 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5212 mii_data->reg_num);
5213 break;
1da177e4
LT		 5214 default:
5215 rc = -EOPNOTSUPP;
5216 }
5217 if (rc)
5218 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5219 return rc;
5220}
5221
5222static struct net_device_stats *
5223qeth_get_stats(struct net_device *dev)
5224{
5225 struct qeth_card *card;
5226
5227 card = (struct qeth_card *) (dev->priv);
5228
5229 QETH_DBF_TEXT(trace,5,"getstat");
5230
5231 return &card->stats;
5232}
5233
5234static int
5235qeth_change_mtu(struct net_device *dev, int new_mtu)
5236{
5237 struct qeth_card *card;
5238 char dbf_text[15];
5239
5240 card = (struct qeth_card *) (dev->priv);
5241
5242 QETH_DBF_TEXT(trace,4,"chgmtu");
5243 sprintf(dbf_text, "%8x", new_mtu);
5244 QETH_DBF_TEXT(trace,4,dbf_text);
5245
5246 if (new_mtu < 64)
5247 return -EINVAL;
5248 if (new_mtu > 65535)
5249 return -EINVAL;
5250 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5251 (!qeth_mtu_is_valid(card, new_mtu)))
5252 return -EINVAL;
5253 dev->mtu = new_mtu;
5254 return 0;
5255}
5256
5257#ifdef CONFIG_QETH_VLAN
5258static void
5259qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5260{
5261 struct qeth_card *card;
5262 unsigned long flags;
5263
5264 QETH_DBF_TEXT(trace,4,"vlanreg");
5265
5266 card = (struct qeth_card *) dev->priv;
5267 spin_lock_irqsave(&card->vlanlock, flags);
5268 card->vlangrp = grp;
5269 spin_unlock_irqrestore(&card->vlanlock, flags);
5270}
5271
5272static inline void
5273qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5274 unsigned short vid)
5275{
5276 int i;
5277 struct sk_buff *skb;
5278 struct sk_buff_head tmp_list;
5279
5280 skb_queue_head_init(&tmp_list);
5281 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5282 while ((skb = skb_dequeue(&buf->skb_list))){
5283 if (vlan_tx_tag_present(skb) &&
5284 (vlan_tx_tag_get(skb) == vid)) {
5285 atomic_dec(&skb->users);
5286 dev_kfree_skb(skb);
5287 } else
5288 skb_queue_tail(&tmp_list, skb);
5289 }
5290 }
5291 while ((skb = skb_dequeue(&tmp_list)))
5292 skb_queue_tail(&buf->skb_list, skb);
5293}
5294
5295static void
5296qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5297{
5298 int i, j;
5299
5300 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5301 for (i = 0; i < card->qdio.no_out_queues; ++i){
5302 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5303 qeth_free_vlan_buffer(card, &card->qdio.
5304 out_qs[i]->bufs[j], vid);
5305 }
5306}
5307
5308static void
5309qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5310{
5311 struct in_device *in_dev;
5312 struct in_ifaddr *ifa;
5313 struct qeth_ipaddr *addr;
5314
5315 QETH_DBF_TEXT(trace, 4, "frvaddr4");
6c88ad2d 5316
1da177e4 5317 rcu_read_lock();
e5ed6399 5318 in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
1da177e4
LT		 5319 if (!in_dev)
5320 goto out;
5321 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5322 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5323 if (addr){
5324 addr->u.a4.addr = ifa->ifa_address;
5325 addr->u.a4.mask = ifa->ifa_mask;
5326 addr->type = QETH_IP_TYPE_NORMAL;
5327 if (!qeth_delete_ip(card, addr))
5328 kfree(addr);
5329 }
5330 }
5331out:
5332 rcu_read_unlock();
5333}
5334
5335static void
5336qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5337{
5338#ifdef CONFIG_QETH_IPV6
5339 struct inet6_dev *in6_dev;
5340 struct inet6_ifaddr *ifa;
5341 struct qeth_ipaddr *addr;
5342
5343 QETH_DBF_TEXT(trace, 4, "frvaddr6");
6c88ad2d 5344
1da177e4
LT		 5345 in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5346 if (!in6_dev)
5347 return;
5348 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5349 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5350 if (addr){
5351 memcpy(&addr->u.a6.addr, &ifa->addr,
5352 sizeof(struct in6_addr));
5353 addr->u.a6.pfxlen = ifa->prefix_len;
5354 addr->type = QETH_IP_TYPE_NORMAL;
5355 if (!qeth_delete_ip(card, addr))
5356 kfree(addr);
5357 }
5358 }
5359 in6_dev_put(in6_dev);
5360#endif /* CONFIG_QETH_IPV6 */
5361}
5362
6c88ad2d
FP		 5363static void
5364qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5365{
5366 if (card->options.layer2 || !card->vlangrp)
5367 return;
5368 qeth_free_vlan_addresses4(card, vid);
5369 qeth_free_vlan_addresses6(card, vid);
5370}
5371
508cc2b0
FP		 5372static int
5373qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5374 struct qeth_reply *reply,
5375 unsigned long data)
5376{
5377 struct qeth_ipa_cmd *cmd;
5378
5379 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5380 cmd = (struct qeth_ipa_cmd *) data;
5381 if (cmd->hdr.return_code) {
5382 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5383 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5384 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5385 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5386 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5387 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5388 }
5389 return 0;
5390}
5391
5392static int
1da177e4
LT		 5393qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5394 enum qeth_ipa_cmds ipacmd)
5395{
1da177e4
LT		 5396 struct qeth_ipa_cmd *cmd;
5397 struct qeth_cmd_buffer *iob;
5398
5399 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5400 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5401 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5402 cmd->data.setdelvlan.vlan_id = i;
508cc2b0
FP		 5403 return qeth_send_ipa_cmd(card, iob,
5404 qeth_layer2_send_setdelvlan_cb, NULL);
1da177e4
LT		 5405}
5406
5407static void
5408qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5409{
5410 unsigned short i;
5411
5412 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5413
5414 if (!card->vlangrp)
5415 return;
5416 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5417 if (card->vlangrp->vlan_devices[i] == NULL)
5418 continue;
5419 if (clear)
5420 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5421 else
5422 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5423 }
5424}
5425
5426/*add_vid is layer 2 used only ....*/
5427static void
5428qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5429{
5430 struct qeth_card *card;
5431
5432 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5433
5434 card = (struct qeth_card *) dev->priv;
5435 if (!card->options.layer2)
5436 return;
5437 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5438}
5439
5440/*... kill_vid used for both modes*/
5441static void
5442qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5443{
5444 struct qeth_card *card;
5445 unsigned long flags;
5446
5447 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5448
5449 card = (struct qeth_card *) dev->priv;
5450 /* free all skbs for the vlan device */
5451 qeth_free_vlan_skbs(card, vid);
5452 spin_lock_irqsave(&card->vlanlock, flags);
5453 /* unregister IP addresses of vlan device */
6c88ad2d 5454 qeth_free_vlan_addresses(card, vid);
1da177e4
LT		 5455 if (card->vlangrp)
5456 card->vlangrp->vlan_devices[vid] = NULL;
5457 spin_unlock_irqrestore(&card->vlanlock, flags);
5458 if (card->options.layer2)
5459 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5460 qeth_set_multicast_list(card->dev);
5461}
5462#endif
6c951b90
FP		 5463/**
5464 * Examine hardware response to SET_PROMISC_MODE
5465 */
5466static int
5467qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5468 struct qeth_reply *reply,
5469 unsigned long data)
5470{
5471 struct qeth_ipa_cmd *cmd;
5472 struct qeth_ipacmd_setadpparms *setparms;
5473
5474 QETH_DBF_TEXT(trace,4,"prmadpcb");
5475
5476 cmd = (struct qeth_ipa_cmd *) data;
5477 setparms = &(cmd->data.setadapterparms);
5478
5479 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5480 if (cmd->hdr.return_code) {
5481 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5482 setparms->data.mode = SET_PROMISC_MODE_OFF;
5483 }
5484 card->info.promisc_mode = setparms->data.mode;
5485 return 0;
5486}
5487/*
5488 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5489 */
5490static void
5491qeth_setadp_promisc_mode(struct qeth_card *card)
5492{
5493 enum qeth_ipa_promisc_modes mode;
5494 struct net_device *dev = card->dev;
5495 struct qeth_cmd_buffer *iob;
5496 struct qeth_ipa_cmd *cmd;
5497
5498 QETH_DBF_TEXT(trace, 4, "setprom");
5499
5500 if (((dev->flags & IFF_PROMISC) &&
5501 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5502 (!(dev->flags & IFF_PROMISC) &&
5503 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5504 return;
5505 mode = SET_PROMISC_MODE_OFF;
5506 if (dev->flags & IFF_PROMISC)
5507 mode = SET_PROMISC_MODE_ON;
5508 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5509
5510 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5511 sizeof(struct qeth_ipacmd_setadpparms));
5512 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5513 cmd->data.setadapterparms.data.mode = mode;
5514 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5515}
1da177e4
LT		 5516
5517/**
5518 * set multicast address on card
5519 */
5520static void
5521qeth_set_multicast_list(struct net_device *dev)
5522{
5523 struct qeth_card *card = (struct qeth_card *) dev->priv;
5524
500f83ab
UB		 5525 if (card->info.type == QETH_CARD_TYPE_OSN)
5526 return ;
5527
66cc5d5a 5528 QETH_DBF_TEXT(trace, 3, "setmulti");
1da177e4 5529 qeth_delete_mc_addresses(card);
6c88ad2d
FP		 5530 if (card->options.layer2) {
5531 qeth_layer2_add_multicast(card);
5532 goto out;
5533 }
1da177e4
LT		 5534 qeth_add_multicast_ipv4(card);
5535#ifdef CONFIG_QETH_IPV6
5536 qeth_add_multicast_ipv6(card);
5537#endif
6c88ad2d 5538out:
1da177e4
LT		 5539 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5540 schedule_work(&card->kernel_thread_starter);
6c951b90
FP		 5541 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5542 return;
5543 if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5544 schedule_work(&card->kernel_thread_starter);
1da177e4
LT		 5545}
5546
5547static int
5548qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5549{
5550 return 0;
5551}
5552
5553static void
5554qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5555{
5556 if (dev->type == ARPHRD_IEEE802_TR)
5557 ip_tr_mc_map(ipm, mac);
5558 else
5559 ip_eth_mc_map(ipm, mac);
5560}
5561
5562static struct qeth_ipaddr *
5563qeth_get_addr_buffer(enum qeth_prot_versions prot)
5564{
5565 struct qeth_ipaddr *addr;
5566
5567 addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5568 if (addr == NULL) {
5569 PRINT_WARN("Not enough memory to add address\n");
5570 return NULL;
5571 }
5572 memset(addr,0,sizeof(struct qeth_ipaddr));
5573 addr->type = QETH_IP_TYPE_NORMAL;
5574 addr->proto = prot;
5575 return addr;
5576}
5577
500f83ab
UB		 5578int
5579qeth_osn_assist(struct net_device *dev,
5580 void *data,
5581 int data_len)
5582{
5583 struct qeth_cmd_buffer *iob;
5584 struct qeth_card *card;
5585 int rc;
5586
5587 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5588 if (!dev)
5589 return -ENODEV;
5590 card = (struct qeth_card *)dev->priv;
5591 if (!card)
5592 return -ENODEV;
5593 if ((card->state != CARD_STATE_UP) &&
5594 (card->state != CARD_STATE_SOFTSETUP))
5595 return -ENODEV;
5596 iob = qeth_wait_for_buffer(&card->write);
5597 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5598 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5599 return rc;
5600}
5601
5602static struct net_device *
5603qeth_netdev_by_devno(unsigned char *read_dev_no)
5604{
5605 struct qeth_card *card;
5606 struct net_device *ndev;
5607 unsigned char *readno;
5608 __u16 temp_dev_no, card_dev_no;
5609 char *endp;
5610 unsigned long flags;
5611
5612 ndev = NULL;
5613 memcpy(&temp_dev_no, read_dev_no, 2);
5614 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5615 list_for_each_entry(card, &qeth_card_list.list, list) {
5616 readno = CARD_RDEV_ID(card);
5617 readno += (strlen(readno) - 4);
5618 card_dev_no = simple_strtoul(readno, &endp, 16);
5619 if (card_dev_no == temp_dev_no) {
5620 ndev = card->dev;
5621 break;
5622 }
5623 }
5624 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5625 return ndev;
5626}
5627
5628int
5629qeth_osn_register(unsigned char *read_dev_no,
5630 struct net_device **dev,
5631 int (*assist_cb)(struct net_device *, void *),
5632 int (*data_cb)(struct sk_buff *))
5633{
5634 struct qeth_card * card;
5635
5636 QETH_DBF_TEXT(trace, 2, "osnreg");
5637 *dev = qeth_netdev_by_devno(read_dev_no);
5638 if (*dev == NULL)
5639 return -ENODEV;
5640 card = (struct qeth_card *)(*dev)->priv;
5641 if (!card)
5642 return -ENODEV;
5643 if ((assist_cb == NULL) || (data_cb == NULL))
5644 return -EINVAL;
5645 card->osn_info.assist_cb = assist_cb;
5646 card->osn_info.data_cb = data_cb;
5647 return 0;
5648}
5649
5650void
5651qeth_osn_deregister(struct net_device * dev)
5652{
5653 struct qeth_card *card;
5654
5655 QETH_DBF_TEXT(trace, 2, "osndereg");
5656 if (!dev)
5657 return;
5658 card = (struct qeth_card *)dev->priv;
5659 if (!card)
5660 return;
5661 card->osn_info.assist_cb = NULL;
5662 card->osn_info.data_cb = NULL;
5663 return;
5664}
5665
1da177e4
LT		 5666static void
5667qeth_delete_mc_addresses(struct qeth_card *card)
5668{
5669 struct qeth_ipaddr *iptodo;
5670 unsigned long flags;
5671
5672 QETH_DBF_TEXT(trace,4,"delmc");
5673 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5674 if (!iptodo) {
5675 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5676 return;
5677 }
5678 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5679 spin_lock_irqsave(&card->ip_lock, flags);
5680 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5681 kfree(iptodo);
5682 spin_unlock_irqrestore(&card->ip_lock, flags);
5683}
5684
5685static inline void
5686qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5687{
5688 struct qeth_ipaddr *ipm;
5689 struct ip_mc_list *im4;
5690 char buf[MAX_ADDR_LEN];
5691
5692 QETH_DBF_TEXT(trace,4,"addmc");
5693 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5694 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5695 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5696 if (!ipm)
5697 continue;
5698 ipm->u.a4.addr = im4->multiaddr;
5699 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5700 ipm->is_multicast = 1;
5701 if (!qeth_add_ip(card,ipm))
5702 kfree(ipm);
5703 }
5704}
5705
5706static inline void
5707qeth_add_vlan_mc(struct qeth_card *card)
5708{
5709#ifdef CONFIG_QETH_VLAN
5710 struct in_device *in_dev;
5711 struct vlan_group *vg;
5712 int i;
5713
5714 QETH_DBF_TEXT(trace,4,"addmcvl");
5715 if ( ((card->options.layer2 == 0) &&
5716 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5717 (card->vlangrp == NULL) )
5718 return ;
5719
5720 vg = card->vlangrp;
5721 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5722 if (vg->vlan_devices[i] == NULL ||
5723 !(vg->vlan_devices[i]->flags & IFF_UP))
5724 continue;
5725 in_dev = in_dev_get(vg->vlan_devices[i]);
5726 if (!in_dev)
5727 continue;
5728 read_lock(&in_dev->mc_list_lock);
5729 qeth_add_mc(card,in_dev);
5730 read_unlock(&in_dev->mc_list_lock);
5731 in_dev_put(in_dev);
5732 }
5733#endif
5734}
5735
5736static void
5737qeth_add_multicast_ipv4(struct qeth_card *card)
5738{
5739 struct in_device *in4_dev;
5740
5741 QETH_DBF_TEXT(trace,4,"chkmcv4");
5742 in4_dev = in_dev_get(card->dev);
5743 if (in4_dev == NULL)
5744 return;
5745 read_lock(&in4_dev->mc_list_lock);
5746 qeth_add_mc(card, in4_dev);
5747 qeth_add_vlan_mc(card);
5748 read_unlock(&in4_dev->mc_list_lock);
5749 in_dev_put(in4_dev);
5750}
5751
6c88ad2d
FP		 5752static void
5753qeth_layer2_add_multicast(struct qeth_card *card)
5754{
5755 struct qeth_ipaddr *ipm;
5756 struct dev_mc_list *dm;
5757
5758 QETH_DBF_TEXT(trace,4,"L2addmc");
5759 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5760 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5761 if (!ipm)
5762 continue;
5763 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5764 ipm->is_multicast = 1;
5765 if (!qeth_add_ip(card, ipm))
5766 kfree(ipm);
5767 }
5768}
5769
1da177e4
LT		 5770#ifdef CONFIG_QETH_IPV6
5771static inline void
5772qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5773{
5774 struct qeth_ipaddr *ipm;
5775 struct ifmcaddr6 *im6;
5776 char buf[MAX_ADDR_LEN];
5777
5778 QETH_DBF_TEXT(trace,4,"addmc6");
5779 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5780 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5781 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5782 if (!ipm)
5783 continue;
5784 ipm->is_multicast = 1;
5785 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5786 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5787 sizeof(struct in6_addr));
5788 if (!qeth_add_ip(card,ipm))
5789 kfree(ipm);
5790 }
5791}
5792
5793static inline void
5794qeth_add_vlan_mc6(struct qeth_card *card)
5795{
5796#ifdef CONFIG_QETH_VLAN
5797 struct inet6_dev *in_dev;
5798 struct vlan_group *vg;
5799 int i;
5800
5801 QETH_DBF_TEXT(trace,4,"admc6vl");
5802 if ( ((card->options.layer2 == 0) &&
5803 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5804 (card->vlangrp == NULL))
5805 return ;
5806
5807 vg = card->vlangrp;
5808 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5809 if (vg->vlan_devices[i] == NULL ||
5810 !(vg->vlan_devices[i]->flags & IFF_UP))
5811 continue;
5812 in_dev = in6_dev_get(vg->vlan_devices[i]);
5813 if (!in_dev)
5814 continue;
5815 read_lock(&in_dev->lock);
5816 qeth_add_mc6(card,in_dev);
5817 read_unlock(&in_dev->lock);
5818 in6_dev_put(in_dev);
5819 }
5820#endif /* CONFIG_QETH_VLAN */
5821}
5822
5823static void
5824qeth_add_multicast_ipv6(struct qeth_card *card)
5825{
5826 struct inet6_dev *in6_dev;
5827
5828 QETH_DBF_TEXT(trace,4,"chkmcv6");
6c6b3e7c 5829 if (!qeth_is_supported(card, IPA_IPV6))
1da177e4 5830 return ;
1da177e4
LT		 5831 in6_dev = in6_dev_get(card->dev);
5832 if (in6_dev == NULL)
5833 return;
5834 read_lock(&in6_dev->lock);
5835 qeth_add_mc6(card, in6_dev);
5836 qeth_add_vlan_mc6(card);
5837 read_unlock(&in6_dev->lock);
5838 in6_dev_put(in6_dev);
5839}
5840#endif /* CONFIG_QETH_IPV6 */
5841
5842static int
5843qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5844 enum qeth_ipa_cmds ipacmd,
5845 int (*reply_cb) (struct qeth_card *,
5846 struct qeth_reply*,
5847 unsigned long))
5848{
5849 struct qeth_ipa_cmd *cmd;
5850 struct qeth_cmd_buffer *iob;
5851
5852 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5853 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5854 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5855 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5856 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5857 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5858}
5859
5860static int
5861qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5862 struct qeth_reply *reply,
5863 unsigned long data)
5864{
5865 struct qeth_ipa_cmd *cmd;
5866 __u8 *mac;
5867
5868 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5869 cmd = (struct qeth_ipa_cmd *) data;
5870 mac = &cmd->data.setdelmac.mac[0];
5871 /* MAC already registered, needed in couple/uncouple case */
5872 if (cmd->hdr.return_code == 0x2005) {
5873 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5874 "already existing on %s \n",
5875 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5876 QETH_CARD_IFNAME(card));
5877 cmd->hdr.return_code = 0;
5878 }
5879 if (cmd->hdr.return_code)
5880 PRINT_ERR("Could not set group MAC " \
5881 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5882 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5883 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5884 return 0;
5885}
5886
5887static int
5888qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5889{
5890 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5891 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5892 qeth_layer2_send_setgroupmac_cb);
5893}
5894
5895static int
5896qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5897 struct qeth_reply *reply,
5898 unsigned long data)
5899{
5900 struct qeth_ipa_cmd *cmd;
5901 __u8 *mac;
5902
5903 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5904 cmd = (struct qeth_ipa_cmd *) data;
5905 mac = &cmd->data.setdelmac.mac[0];
5906 if (cmd->hdr.return_code)
5907 PRINT_ERR("Could not delete group MAC " \
5908 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5909 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5910 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5911 return 0;
5912}
5913
5914static int
5915qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5916{
5917 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5918 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5919 qeth_layer2_send_delgroupmac_cb);
5920}
5921
5922static int
5923qeth_layer2_send_setmac_cb(struct qeth_card *card,
5924 struct qeth_reply *reply,
5925 unsigned long data)
5926{
5927 struct qeth_ipa_cmd *cmd;
5928
5929 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5930 cmd = (struct qeth_ipa_cmd *) data;
5931 if (cmd->hdr.return_code) {
5932 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5933 PRINT_WARN("Error in registering MAC address on " \
5934 "device %s: x%x\n", CARD_BUS_ID(card),
5935 cmd->hdr.return_code);
e08d88cc 5936 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5937 cmd->hdr.return_code = -EIO;
5938 } else {
e08d88cc 5939 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5940 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5941 OSA_ADDR_LEN);
5942 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5943 "successfully registered on device %s\n",
5944 card->dev->dev_addr[0], card->dev->dev_addr[1],
5945 card->dev->dev_addr[2], card->dev->dev_addr[3],
5946 card->dev->dev_addr[4], card->dev->dev_addr[5],
5947 card->dev->name);
5948 }
5949 return 0;
5950}
5951
5952static int
5953qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5954{
5955 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5956 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5957 qeth_layer2_send_setmac_cb);
5958}
5959
5960static int
5961qeth_layer2_send_delmac_cb(struct qeth_card *card,
5962 struct qeth_reply *reply,
5963 unsigned long data)
5964{
5965 struct qeth_ipa_cmd *cmd;
5966
5967 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5968 cmd = (struct qeth_ipa_cmd *) data;
5969 if (cmd->hdr.return_code) {
5970 PRINT_WARN("Error in deregistering MAC address on " \
5971 "device %s: x%x\n", CARD_BUS_ID(card),
5972 cmd->hdr.return_code);
5973 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5974 cmd->hdr.return_code = -EIO;
5975 return 0;
5976 }
e08d88cc 5977 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
1da177e4
LT		 5978
5979 return 0;
5980}
5981static int
5982qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5983{
5984 QETH_DBF_TEXT(trace, 2, "L2Delmac");
e08d88cc 5985 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
1da177e4
LT		 5986 return 0;
5987 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5988 qeth_layer2_send_delmac_cb);
5989}
5990
5991static int
5992qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5993{
5994 struct sockaddr *addr = p;
5995 struct qeth_card *card;
5996 int rc = 0;
5997
5998 QETH_DBF_TEXT(trace, 3, "setmac");
5999
6000 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6001 QETH_DBF_TEXT(trace, 3, "setmcINV");
6002 return -EOPNOTSUPP;
6003 }
6004 card = (struct qeth_card *) dev->priv;
6005
6006 if (!card->options.layer2) {
e08d88cc 6007 PRINT_WARN("Setting MAC address on %s is not supported "
1da177e4
LT		 6008 "in Layer 3 mode.\n", dev->name);
6009 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6010 return -EOPNOTSUPP;
6011 }
500f83ab
UB		 6012 if (card->info.type == QETH_CARD_TYPE_OSN) {
6013 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6014 dev->name);
6015 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6016 return -EOPNOTSUPP;
6017 }
1da177e4
LT		 6018 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6019 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6020 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6021 if (!rc)
6022 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6023 return rc;
6024}
6025
6026static void
6027qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6028 __u8 command, enum qeth_prot_versions prot)
6029{
6030 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6031 cmd->hdr.command = command;
6032 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6033 cmd->hdr.seqno = card->seqno.ipa;
6034 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6035 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6036 if (card->options.layer2)
6037 cmd->hdr.prim_version_no = 2;
6038 else
6039 cmd->hdr.prim_version_no = 1;
6040 cmd->hdr.param_count = 1;
6041 cmd->hdr.prot_version = prot;
6042 cmd->hdr.ipa_supported = 0;
6043 cmd->hdr.ipa_enabled = 0;
6044}
6045
6046static struct qeth_cmd_buffer *
6047qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6048 enum qeth_prot_versions prot)
6049{
6050 struct qeth_cmd_buffer *iob;
6051 struct qeth_ipa_cmd *cmd;
6052
6053 iob = qeth_wait_for_buffer(&card->write);
6054 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6055 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6056
6057 return iob;
6058}
6059
6060static int
6061qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6062{
6063 int rc;
6064 struct qeth_cmd_buffer *iob;
6065 struct qeth_ipa_cmd *cmd;
6066
6067 QETH_DBF_TEXT(trace,4,"setdelmc");
6068
6069 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6070 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6071 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6072 if (addr->proto == QETH_PROT_IPV6)
6073 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6074 sizeof(struct in6_addr));
6075 else
6076 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6077
6078 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6079
6080 return rc;
6081}
6082static inline void
6083qeth_fill_netmask(u8 *netmask, unsigned int len)
6084{
6085 int i,j;
6086 for (i=0;i<16;i++) {
6087 j=(len)-(i*8);
6088 if (j >= 8)
6089 netmask[i] = 0xff;
6090 else if (j > 0)
6091 netmask[i] = (u8)(0xFF00>>j);
6092 else
6093 netmask[i] = 0;
6094 }
6095}
6096
6097static int
6098qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6099 int ipacmd, unsigned int flags)
6100{
6101 int rc;
6102 struct qeth_cmd_buffer *iob;
6103 struct qeth_ipa_cmd *cmd;
6104 __u8 netmask[16];
6105
6106 QETH_DBF_TEXT(trace,4,"setdelip");
6107 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6108
6109 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6110 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6111 if (addr->proto == QETH_PROT_IPV6) {
6112 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6113 sizeof(struct in6_addr));
6114 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6115 memcpy(cmd->data.setdelip6.mask, netmask,
6116 sizeof(struct in6_addr));
6117 cmd->data.setdelip6.flags = flags;
6118 } else {
6119 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6120 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6121 cmd->data.setdelip4.flags = flags;
6122 }
6123
6124 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6125
6126 return rc;
6127}
6128
6129static int
6130qeth_layer2_register_addr_entry(struct qeth_card *card,
6131 struct qeth_ipaddr *addr)
6132{
6133 if (!addr->is_multicast)
6134 return 0;
6135 QETH_DBF_TEXT(trace, 2, "setgmac");
6136 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6137 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6138}
6139
6140static int
6141qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6142 struct qeth_ipaddr *addr)
6143{
6144 if (!addr->is_multicast)
6145 return 0;
6146 QETH_DBF_TEXT(trace, 2, "delgmac");
6147 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6148 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6149}
6150
6151static int
6152qeth_layer3_register_addr_entry(struct qeth_card *card,
6153 struct qeth_ipaddr *addr)
6154{
6155 char buf[50];
6156 int rc;
6157 int cnt = 3;
6158
6159 if (addr->proto == QETH_PROT_IPV4) {
6160 QETH_DBF_TEXT(trace, 2,"setaddr4");
6161 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6162 } else if (addr->proto == QETH_PROT_IPV6) {
6163 QETH_DBF_TEXT(trace, 2, "setaddr6");
6164 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6165 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6166 } else {
6167 QETH_DBF_TEXT(trace, 2, "setaddr?");
6168 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6169 }
6170 do {
6171 if (addr->is_multicast)
6172 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6173 else
6174 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6175 addr->set_flags);
6176 if (rc)
6177 QETH_DBF_TEXT(trace, 2, "failed");
6178 } while ((--cnt > 0) && rc);
6179 if (rc){
6180 QETH_DBF_TEXT(trace, 2, "FAILED");
6181 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6182 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6183 buf, rc, rc);
6184 }
6185 return rc;
6186}
6187
6188static int
6189qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6190 struct qeth_ipaddr *addr)
6191{
6192 //char buf[50];
6193 int rc;
6194
6195 if (addr->proto == QETH_PROT_IPV4) {
6196 QETH_DBF_TEXT(trace, 2,"deladdr4");
6197 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6198 } else if (addr->proto == QETH_PROT_IPV6) {
6199 QETH_DBF_TEXT(trace, 2, "deladdr6");
6200 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6201 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6202 } else {
6203 QETH_DBF_TEXT(trace, 2, "deladdr?");
6204 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6205 }
6206 if (addr->is_multicast)
6207 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6208 else
6209 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6210 addr->del_flags);
6211 if (rc) {
6212 QETH_DBF_TEXT(trace, 2, "failed");
6213 /* TODO: re-activate this warning as soon as we have a
6214 * clean mirco code
6215 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6216 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6217 buf, rc);
6218 */
6219 }
6220 return rc;
6221}
6222
6223static int
6224qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6225{
6226 if (card->options.layer2)
6227 return qeth_layer2_register_addr_entry(card, addr);
6228
6229 return qeth_layer3_register_addr_entry(card, addr);
6230}
6231
6232static int
6233qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6234{
6235 if (card->options.layer2)
6236 return qeth_layer2_deregister_addr_entry(card, addr);
6237
6238 return qeth_layer3_deregister_addr_entry(card, addr);
6239}
6240
6241static u32
6242qeth_ethtool_get_tx_csum(struct net_device *dev)
6243{
6244 /* We may need to say that we support tx csum offload if
6245 * we do EDDP or TSO. There are discussions going on to
6246 * enforce rules in the stack and in ethtool that make
6247 * SG and TSO depend on HW_CSUM. At the moment there are
6248 * no such rules....
6249 * If we say yes here, we have to checksum outbound packets
6250 * any time. */
6251 return 0;
6252}
6253
6254static int
6255qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6256{
6257 return -EINVAL;
6258}
6259
6260static u32
6261qeth_ethtool_get_rx_csum(struct net_device *dev)
6262{
6263 struct qeth_card *card = (struct qeth_card *)dev->priv;
6264
6265 return (card->options.checksum_type == HW_CHECKSUMMING);
6266}
6267
6268static int
6269qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6270{
6271 struct qeth_card *card = (struct qeth_card *)dev->priv;
6272
6273 if ((card->state != CARD_STATE_DOWN) &&
6274 (card->state != CARD_STATE_RECOVER))
6275 return -EPERM;
6276 if (data)
6277 card->options.checksum_type = HW_CHECKSUMMING;
6278 else
6279 card->options.checksum_type = SW_CHECKSUMMING;
6280 return 0;
6281}
6282
6283static u32
6284qeth_ethtool_get_sg(struct net_device *dev)
6285{
6286 struct qeth_card *card = (struct qeth_card *)dev->priv;
6287
6288 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6289 (dev->features & NETIF_F_SG));
6290}
6291
6292static int
6293qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6294{
6295 struct qeth_card *card = (struct qeth_card *)dev->priv;
6296
6297 if (data) {
6298 if (card->options.large_send != QETH_LARGE_SEND_NO)
6299 dev->features |= NETIF_F_SG;
6300 else {
6301 dev->features &= ~NETIF_F_SG;
6302 return -EINVAL;
6303 }
6304 } else
6305 dev->features &= ~NETIF_F_SG;
6306 return 0;
6307}
6308
6309static u32
6310qeth_ethtool_get_tso(struct net_device *dev)
6311{
6312 struct qeth_card *card = (struct qeth_card *)dev->priv;
6313
6314 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6315 (dev->features & NETIF_F_TSO));
6316}
6317
6318static int
6319qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6320{
6321 struct qeth_card *card = (struct qeth_card *)dev->priv;
6322
6323 if (data) {
6324 if (card->options.large_send != QETH_LARGE_SEND_NO)
6325 dev->features |= NETIF_F_TSO;
6326 else {
6327 dev->features &= ~NETIF_F_TSO;
6328 return -EINVAL;
6329 }
6330 } else
6331 dev->features &= ~NETIF_F_TSO;
6332 return 0;
6333}
6334
6335static struct ethtool_ops qeth_ethtool_ops = {
6336 .get_tx_csum = qeth_ethtool_get_tx_csum,
6337 .set_tx_csum = qeth_ethtool_set_tx_csum,
6338 .get_rx_csum = qeth_ethtool_get_rx_csum,
6339 .set_rx_csum = qeth_ethtool_set_rx_csum,
6340 .get_sg = qeth_ethtool_get_sg,
6341 .set_sg = qeth_ethtool_set_sg,
6342 .get_tso = qeth_ethtool_get_tso,
6343 .set_tso = qeth_ethtool_set_tso,
6344};
6345
6346static int
6347qeth_netdev_init(struct net_device *dev)
6348{
6349 struct qeth_card *card;
6350
6351 card = (struct qeth_card *) dev->priv;
6352
6353 QETH_DBF_TEXT(trace,3,"initdev");
6354
6355 dev->tx_timeout = &qeth_tx_timeout;
6356 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6357 dev->open = qeth_open;
6358 dev->stop = qeth_stop;
6359 dev->hard_start_xmit = qeth_hard_start_xmit;
6360 dev->do_ioctl = qeth_do_ioctl;
6361 dev->get_stats = qeth_get_stats;
6362 dev->change_mtu = qeth_change_mtu;
6363 dev->neigh_setup = qeth_neigh_setup;
6364 dev->set_multicast_list = qeth_set_multicast_list;
6365#ifdef CONFIG_QETH_VLAN
6366 dev->vlan_rx_register = qeth_vlan_rx_register;
6367 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6368 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6369#endif
6370 dev->hard_header = card->orig_hard_header;
6371 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6372 dev->rebuild_header = NULL;
6373 dev->hard_header = NULL;
6374 if (card->options.fake_ll)
6375 dev->hard_header = qeth_fake_header;
6376 dev->header_cache_update = NULL;
6377 dev->hard_header_cache = NULL;
6378 }
6379#ifdef CONFIG_QETH_IPV6
6380 /*IPv6 address autoconfiguration stuff*/
6381 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6382 card->dev->dev_id = card->info.unique_id & 0xffff;
6383#endif
6384 dev->hard_header_parse = NULL;
6385 dev->set_mac_address = qeth_layer2_set_mac_address;
6386 dev->flags |= qeth_get_netdev_flags(card);
6387 if ((card->options.fake_broadcast) ||
6388 (card->info.broadcast_capable))
6389 dev->flags |= IFF_BROADCAST;
6390 dev->hard_header_len =
6391 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6392 dev->addr_len = OSA_ADDR_LEN;
6393 dev->mtu = card->info.initial_mtu;
500f83ab
UB		 6394 if (card->info.type != QETH_CARD_TYPE_OSN)
6395 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
1da177e4
LT		 6396 SET_MODULE_OWNER(dev);
6397 return 0;
6398}
6399
6400static void
6401qeth_init_func_level(struct qeth_card *card)
6402{
6403 if (card->ipato.enabled) {
6404 if (card->info.type == QETH_CARD_TYPE_IQD)
6405 card->info.func_level =
6406 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6407 else
6408 card->info.func_level =
6409 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6410 } else {
6411 if (card->info.type == QETH_CARD_TYPE_IQD)
500f83ab 6412 /*FIXME:why do we have same values for dis and ena for osae??? */
1da177e4
LT		 6413 card->info.func_level =
6414 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6415 else
6416 card->info.func_level =
6417 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6418 }
6419}
6420
6421/**
6422 * hardsetup card, initialize MPC and QDIO stuff
6423 */
6424static int
6425qeth_hardsetup_card(struct qeth_card *card)
6426{
6427 int retries = 3;
6428 int rc;
6429
6430 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6431
6432retry:
6433 if (retries < 3){
6434 PRINT_WARN("Retrying to do IDX activates.\n");
6435 ccw_device_set_offline(CARD_DDEV(card));
6436 ccw_device_set_offline(CARD_WDEV(card));
6437 ccw_device_set_offline(CARD_RDEV(card));
6438 ccw_device_set_online(CARD_RDEV(card));
6439 ccw_device_set_online(CARD_WDEV(card));
6440 ccw_device_set_online(CARD_DDEV(card));
6441 }
500f83ab 6442 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
1da177e4
LT		 6443 if (rc == -ERESTARTSYS) {
6444 QETH_DBF_TEXT(setup, 2, "break1");
6445 return rc;
6446 } else if (rc) {
6447 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6448 if (--retries < 0)
6449 goto out;
6450 else
6451 goto retry;
6452 }
6453 if ((rc = qeth_get_unitaddr(card))){
6454 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6455 return rc;
6456 }
6457 qeth_init_tokens(card);
6458 qeth_init_func_level(card);
6459 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6460 if (rc == -ERESTARTSYS) {
6461 QETH_DBF_TEXT(setup, 2, "break2");
6462 return rc;
6463 } else if (rc) {
6464 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6465 if (--retries < 0)
6466 goto out;
6467 else
6468 goto retry;
6469 }
6470 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6471 if (rc == -ERESTARTSYS) {
6472 QETH_DBF_TEXT(setup, 2, "break3");
6473 return rc;
6474 } else if (rc) {
6475 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6476 if (--retries < 0)
6477 goto out;
6478 else
6479 goto retry;
6480 }
6481 if ((rc = qeth_mpc_initialize(card))){
6482 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6483 goto out;
6484 }
6485 /*network device will be recovered*/
6486 if (card->dev) {
6487 card->dev->hard_header = card->orig_hard_header;
6488 return 0;
6489 }
6490 /* at first set_online allocate netdev */
6491 card->dev = qeth_get_netdevice(card->info.type,
6492 card->info.link_type);
6493 if (!card->dev){
500f83ab
UB		 6494 qeth_qdio_clear_card(card, card->info.type !=
6495 QETH_CARD_TYPE_IQD);
1da177e4
LT		 6496 rc = -ENODEV;
6497 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6498 goto out;
6499 }
6500 card->dev->priv = card;
6501 card->orig_hard_header = card->dev->hard_header;
6502 card->dev->type = qeth_get_arphdr_type(card->info.type,
6503 card->info.link_type);
6504 card->dev->init = qeth_netdev_init;
6505 return 0;
6506out:
6507 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6508 return rc;
6509}
6510
6511static int
6512qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6513 unsigned long data)
6514{
6515 struct qeth_ipa_cmd *cmd;
6516
6517 QETH_DBF_TEXT(trace,4,"defadpcb");
6518
6519 cmd = (struct qeth_ipa_cmd *) data;
6520 if (cmd->hdr.return_code == 0){
6521 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6522 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6523 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6524#ifdef CONFIG_QETH_IPV6
6525 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6526 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6527#endif
6528 }
6529 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6530 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6531 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6532 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6533 }
6534 return 0;
6535}
6536
6537static int
6538qeth_default_setadapterparms_cb(struct qeth_card *card,
6539 struct qeth_reply *reply,
6540 unsigned long data)
6541{
6542 struct qeth_ipa_cmd *cmd;
6543
6544 QETH_DBF_TEXT(trace,4,"defadpcb");
6545
6546 cmd = (struct qeth_ipa_cmd *) data;
6547 if (cmd->hdr.return_code == 0)
6548 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6549 return 0;
6550}
6551
6c951b90
FP		 6552
6553
1da177e4
LT		 6554static int
6555qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6556 unsigned long data)
6557{
6558 struct qeth_ipa_cmd *cmd;
6559
6560 QETH_DBF_TEXT(trace,3,"quyadpcb");
6561
6562 cmd = (struct qeth_ipa_cmd *) data;
6563 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6564 card->info.link_type =
6565 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6566 card->options.adp.supported_funcs =
6567 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6568 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6569}
6570
6571static int
6572qeth_query_setadapterparms(struct qeth_card *card)
6573{
6574 int rc;
6575 struct qeth_cmd_buffer *iob;
6576
6577 QETH_DBF_TEXT(trace,3,"queryadp");
6578 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6579 sizeof(struct qeth_ipacmd_setadpparms));
6580 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6581 return rc;
6582}
6583
6584static int
6585qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6586 struct qeth_reply *reply,
6587 unsigned long data)
6588{
6589 struct qeth_ipa_cmd *cmd;
6590
6591 QETH_DBF_TEXT(trace,4,"chgmaccb");
6592
6593 cmd = (struct qeth_ipa_cmd *) data;
e08d88cc
FP		 6594 if (!card->options.layer2 || card->info.guestlan ||
6595 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6596 memcpy(card->dev->dev_addr,
6597 &cmd->data.setadapterparms.data.change_addr.addr,
6598 OSA_ADDR_LEN);
6599 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6600 }
1da177e4
LT		 6601 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6602 return 0;
6603}
6604
6605static int
6606qeth_setadpparms_change_macaddr(struct qeth_card *card)
6607{
6608 int rc;
6609 struct qeth_cmd_buffer *iob;
6610 struct qeth_ipa_cmd *cmd;
6611
6612 QETH_DBF_TEXT(trace,4,"chgmac");
6613
6614 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6615 sizeof(struct qeth_ipacmd_setadpparms));
6616 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6617 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6618 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6619 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6620 card->dev->dev_addr, OSA_ADDR_LEN);
6621 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6622 NULL);
6623 return rc;
6624}
6625
6626static int
6627qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6628{
6629 int rc;
6630 struct qeth_cmd_buffer *iob;
6631 struct qeth_ipa_cmd *cmd;
6632
6633 QETH_DBF_TEXT(trace,4,"adpmode");
6634
6635 iob = qeth_get_adapter_cmd(card, command,
6636 sizeof(struct qeth_ipacmd_setadpparms));
6637 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6638 cmd->data.setadapterparms.data.mode = mode;
6639 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6640 NULL);
6641 return rc;
6642}
6643
6644static inline int
6645qeth_setadapter_hstr(struct qeth_card *card)
6646{
6647 int rc;
6648
6649 QETH_DBF_TEXT(trace,4,"adphstr");
6650
6651 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6652 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6653 card->options.broadcast_mode);
6654 if (rc)
6655 PRINT_WARN("couldn't set broadcast mode on "
6656 "device %s: x%x\n",
6657 CARD_BUS_ID(card), rc);
6658 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6659 card->options.macaddr_mode);
6660 if (rc)
6661 PRINT_WARN("couldn't set macaddr mode on "
6662 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6663 return rc;
6664 }
6665 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6666 PRINT_WARN("set adapter parameters not available "
6667 "to set broadcast mode, using ALLRINGS "
6668 "on device %s:\n", CARD_BUS_ID(card));
6669 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6670 PRINT_WARN("set adapter parameters not available "
6671 "to set macaddr mode, using NONCANONICAL "
6672 "on device %s:\n", CARD_BUS_ID(card));
6673 return 0;
6674}
6675
6676static int
6677qeth_setadapter_parms(struct qeth_card *card)
6678{
6679 int rc;
6680
6681 QETH_DBF_TEXT(setup, 2, "setadprm");
6682
6683 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6684 PRINT_WARN("set adapter parameters not supported "
6685 "on device %s.\n",
6686 CARD_BUS_ID(card));
6687 QETH_DBF_TEXT(setup, 2, " notsupp");
6688 return 0;
6689 }
6690 rc = qeth_query_setadapterparms(card);
6691 if (rc) {
6692 PRINT_WARN("couldn't set adapter parameters on device %s: "
6693 "x%x\n", CARD_BUS_ID(card), rc);
6694 return rc;
6695 }
6696 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6697 rc = qeth_setadpparms_change_macaddr(card);
6698 if (rc)
6699 PRINT_WARN("couldn't get MAC address on "
6700 "device %s: x%x\n",
6701 CARD_BUS_ID(card), rc);
6702 }
6703
6704 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6705 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6706 rc = qeth_setadapter_hstr(card);
6707
6708 return rc;
6709}
6710
6711static int
6712qeth_layer2_initialize(struct qeth_card *card)
6713{
6714 int rc = 0;
6715
6716
6717 QETH_DBF_TEXT(setup, 2, "doL2init");
6718 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6719
6c951b90
FP		 6720 rc = qeth_query_setadapterparms(card);
6721 if (rc) {
6722 PRINT_WARN("could not query adapter parameters on device %s: "
6723 "x%x\n", CARD_BUS_ID(card), rc);
6724 }
6725
1da177e4
LT		 6726 rc = qeth_setadpparms_change_macaddr(card);
6727 if (rc) {
6728 PRINT_WARN("couldn't get MAC address on "
6729 "device %s: x%x\n",
6730 CARD_BUS_ID(card), rc);
6731 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6732 return rc;
6733 }
6734 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6735
6736 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6737 if (rc)
6738 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6739 return 0;
6740}
6741
6742
6743static int
6744qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6745 enum qeth_prot_versions prot)
6746{
6747 int rc;
6748 struct qeth_cmd_buffer *iob;
6749
6750 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6751 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6752
6753 return rc;
6754}
6755
6756static int
6757qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6758{
6759 int rc;
6760
6761 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6762
6763 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6764 return rc;
6765}
6766
6767static int
6768qeth_send_stoplan(struct qeth_card *card)
6769{
6770 int rc = 0;
6771
6772 /*
6773 * TODO: according to the IPA format document page 14,
6774 * TCP/IP (we!) never issue a STOPLAN
6775 * is this right ?!?
6776 */
6777 QETH_DBF_TEXT(trace, 2, "stoplan");
6778
6779 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6780 return rc;
6781}
6782
6783static int
6784qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6785 unsigned long data)
6786{
6787 struct qeth_ipa_cmd *cmd;
6788
6789 QETH_DBF_TEXT(setup, 2, "qipasscb");
6790
6791 cmd = (struct qeth_ipa_cmd *) data;
6792 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6793 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6794 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
9123e0d7
UB		 6795 /* Disable IPV6 support hard coded for Hipersockets */
6796 if(card->info.type == QETH_CARD_TYPE_IQD)
6797 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
1da177e4
LT		 6798 } else {
6799#ifdef CONFIG_QETH_IPV6
6800 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6801 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6802#endif
6803 }
6804 QETH_DBF_TEXT(setup, 2, "suppenbl");
6805 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6806 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6807 return 0;
6808}
6809
6810static int
6811qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6812{
6813 int rc;
6814 struct qeth_cmd_buffer *iob;
6815
6816 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6817 if (card->options.layer2) {
6818 QETH_DBF_TEXT(setup, 2, "noprmly2");
6819 return -EPERM;
6820 }
6821
6822 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6823 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6824 return rc;
6825}
6826
6827static struct qeth_cmd_buffer *
6828qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6829 __u16 cmd_code, __u16 len,
6830 enum qeth_prot_versions prot)
6831{
6832 struct qeth_cmd_buffer *iob;
6833 struct qeth_ipa_cmd *cmd;
6834
6835 QETH_DBF_TEXT(trace,4,"getasscm");
6836 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6837
6838 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6839 cmd->data.setassparms.hdr.assist_no = ipa_func;
6840 cmd->data.setassparms.hdr.length = 8 + len;
6841 cmd->data.setassparms.hdr.command_code = cmd_code;
6842 cmd->data.setassparms.hdr.return_code = 0;
6843 cmd->data.setassparms.hdr.seq_no = 0;
6844
6845 return iob;
6846}
6847
6848static int
6849qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6850 __u16 len, long data,
6851 int (*reply_cb)
6852 (struct qeth_card *,struct qeth_reply *,unsigned long),
6853 void *reply_param)
6854{
6855 int rc;
6856 struct qeth_ipa_cmd *cmd;
6857
6858 QETH_DBF_TEXT(trace,4,"sendassp");
6859
6860 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6861 if (len <= sizeof(__u32))
6862 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1380fee2 6863 else /* (len > sizeof(__u32)) */
1da177e4
LT		 6864 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6865
6866 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6867 return rc;
6868}
6869
6870#ifdef CONFIG_QETH_IPV6
6871static int
6872qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6873 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6874
6875{
6876 int rc;
6877 struct qeth_cmd_buffer *iob;
6878
6879 QETH_DBF_TEXT(trace,4,"simassp6");
6880 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6881 0, QETH_PROT_IPV6);
6882 rc = qeth_send_setassparms(card, iob, 0, 0,
6883 qeth_default_setassparms_cb, NULL);
6884 return rc;
6885}
6886#endif
6887
6888static int
6889qeth_send_simple_setassparms(struct qeth_card *card,
6890 enum qeth_ipa_funcs ipa_func,
6891 __u16 cmd_code, long data)
6892{
6893 int rc;
6894 int length = 0;
6895 struct qeth_cmd_buffer *iob;
6896
6897 QETH_DBF_TEXT(trace,4,"simassp4");
6898 if (data)
6899 length = sizeof(__u32);
6900 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6901 length, QETH_PROT_IPV4);
6902 rc = qeth_send_setassparms(card, iob, length, data,
6903 qeth_default_setassparms_cb, NULL);
6904 return rc;
6905}
6906
6907static inline int
6908qeth_start_ipa_arp_processing(struct qeth_card *card)
6909{
6910 int rc;
6911
6912 QETH_DBF_TEXT(trace,3,"ipaarp");
6913
6914 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6915 PRINT_WARN("ARP processing not supported "
6916 "on %s!\n", QETH_CARD_IFNAME(card));
6917 return 0;
6918 }
6919 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6920 IPA_CMD_ASS_START, 0);
6921 if (rc) {
6922 PRINT_WARN("Could not start ARP processing "
6923 "assist on %s: 0x%x\n",
6924 QETH_CARD_IFNAME(card), rc);
6925 }
6926 return rc;
6927}
6928
6929static int
6930qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6931{
6932 int rc;
6933
6934 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6935
6936 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6937 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6938 QETH_CARD_IFNAME(card));
6939 return -EOPNOTSUPP;
6940 }
6941
6942 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6943 IPA_CMD_ASS_START, 0);
6944 if (rc) {
6945 PRINT_WARN("Could not start Hardware IP fragmentation "
6946 "assist on %s: 0x%x\n",
6947 QETH_CARD_IFNAME(card), rc);
6948 } else
6949 PRINT_INFO("Hardware IP fragmentation enabled \n");
6950 return rc;
6951}
6952
6953static int
6954qeth_start_ipa_source_mac(struct qeth_card *card)
6955{
6956 int rc;
6957
6958 QETH_DBF_TEXT(trace,3,"stsrcmac");
6959
6960 if (!card->options.fake_ll)
6961 return -EOPNOTSUPP;
6962
6963 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6964 PRINT_INFO("Inbound source address not "
6965 "supported on %s\n", QETH_CARD_IFNAME(card));
6966 return -EOPNOTSUPP;
6967 }
6968
6969 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6970 IPA_CMD_ASS_START, 0);
6971 if (rc)
6972 PRINT_WARN("Could not start inbound source "
6973 "assist on %s: 0x%x\n",
6974 QETH_CARD_IFNAME(card), rc);
6975 return rc;
6976}
6977
6978static int
6979qeth_start_ipa_vlan(struct qeth_card *card)
6980{
6981 int rc = 0;
6982
6983 QETH_DBF_TEXT(trace,3,"strtvlan");
6984
6985#ifdef CONFIG_QETH_VLAN
6986 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6987 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6988 return -EOPNOTSUPP;
6989 }
6990
6991 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6992 IPA_CMD_ASS_START,0);
6993 if (rc) {
6994 PRINT_WARN("Could not start vlan "
6995 "assist on %s: 0x%x\n",
6996 QETH_CARD_IFNAME(card), rc);
6997 } else {
6998 PRINT_INFO("VLAN enabled \n");
6999 card->dev->features |=
7000 NETIF_F_HW_VLAN_FILTER |
7001 NETIF_F_HW_VLAN_TX |
7002 NETIF_F_HW_VLAN_RX;
7003 }
7004#endif /* QETH_VLAN */
7005 return rc;
7006}
7007
7008static int
7009qeth_start_ipa_multicast(struct qeth_card *card)
7010{
7011 int rc;
7012
7013 QETH_DBF_TEXT(trace,3,"stmcast");
7014
7015 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7016 PRINT_WARN("Multicast not supported on %s\n",
7017 QETH_CARD_IFNAME(card));
7018 return -EOPNOTSUPP;
7019 }
7020
7021 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7022 IPA_CMD_ASS_START,0);
7023 if (rc) {
7024 PRINT_WARN("Could not start multicast "
7025 "assist on %s: rc=%i\n",
7026 QETH_CARD_IFNAME(card), rc);
7027 } else {
7028 PRINT_INFO("Multicast enabled\n");
7029 card->dev->flags |= IFF_MULTICAST;
7030 }
7031 return rc;
7032}
7033
7034#ifdef CONFIG_QETH_IPV6
7035static int
7036qeth_softsetup_ipv6(struct qeth_card *card)
7037{
7038 int rc;
7039
7040 QETH_DBF_TEXT(trace,3,"softipv6");
7041
7042 netif_stop_queue(card->dev);
7043 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7044 if (rc) {
7045 PRINT_ERR("IPv6 startlan failed on %s\n",
7046 QETH_CARD_IFNAME(card));
7047 return rc;
7048 }
7049 netif_wake_queue(card->dev);
7050 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7051 if (rc) {
7052 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7053 QETH_CARD_IFNAME(card));
7054 return rc;
7055 }
7056 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7057 IPA_CMD_ASS_START, 3);
7058 if (rc) {
7059 PRINT_WARN("IPv6 start assist (version 4) failed "
7060 "on %s: 0x%x\n",
7061 QETH_CARD_IFNAME(card), rc);
7062 return rc;
7063 }
7064 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7065 IPA_CMD_ASS_START);
7066 if (rc) {
7067 PRINT_WARN("IPV6 start assist (version 6) failed "
7068 "on %s: 0x%x\n",
7069 QETH_CARD_IFNAME(card), rc);
7070 return rc;
7071 }
7072 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7073 IPA_CMD_ASS_START);
7074 if (rc) {
7075 PRINT_WARN("Could not enable passthrough "
7076 "on %s: 0x%x\n",
7077 QETH_CARD_IFNAME(card), rc);
7078 return rc;
7079 }
7080 PRINT_INFO("IPV6 enabled \n");
7081 return 0;
7082}
7083
7084#endif
7085
7086static int
7087qeth_start_ipa_ipv6(struct qeth_card *card)
7088{
7089 int rc = 0;
7090#ifdef CONFIG_QETH_IPV6
7091 QETH_DBF_TEXT(trace,3,"strtipv6");
7092
7093 if (!qeth_is_supported(card, IPA_IPV6)) {
7094 PRINT_WARN("IPv6 not supported on %s\n",
7095 QETH_CARD_IFNAME(card));
7096 return 0;
7097 }
7098 rc = qeth_softsetup_ipv6(card);
7099#endif
7100 return rc ;
7101}
7102
7103static int
7104qeth_start_ipa_broadcast(struct qeth_card *card)
7105{
7106 int rc;
7107
7108 QETH_DBF_TEXT(trace,3,"stbrdcst");
7109 card->info.broadcast_capable = 0;
7110 if (!qeth_is_supported(card, IPA_FILTERING)) {
7111 PRINT_WARN("Broadcast not supported on %s\n",
7112 QETH_CARD_IFNAME(card));
7113 rc = -EOPNOTSUPP;
7114 goto out;
7115 }
7116 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7117 IPA_CMD_ASS_START, 0);
7118 if (rc) {
7119 PRINT_WARN("Could not enable broadcasting filtering "
7120 "on %s: 0x%x\n",
7121 QETH_CARD_IFNAME(card), rc);
7122 goto out;
7123 }
7124
7125 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7126 IPA_CMD_ASS_CONFIGURE, 1);
7127 if (rc) {
7128 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7129 QETH_CARD_IFNAME(card), rc);
7130 goto out;
7131 }
7132 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7133 PRINT_INFO("Broadcast enabled \n");
7134 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7135 IPA_CMD_ASS_ENABLE, 1);
7136 if (rc) {
7137 PRINT_WARN("Could not set up broadcast echo filtering on "
7138 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7139 goto out;
7140 }
7141 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7142out:
7143 if (card->info.broadcast_capable)
7144 card->dev->flags |= IFF_BROADCAST;
7145 else
7146 card->dev->flags &= ~IFF_BROADCAST;
7147 return rc;
7148}
7149
7150static int
7151qeth_send_checksum_command(struct qeth_card *card)
7152{
7153 int rc;
7154
7155 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7156 IPA_CMD_ASS_START, 0);
7157 if (rc) {
7158 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7159 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7160 QETH_CARD_IFNAME(card), rc);
7161 return rc;
7162 }
7163 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7164 IPA_CMD_ASS_ENABLE,
7165 card->info.csum_mask);
7166 if (rc) {
7167 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7168 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7169 QETH_CARD_IFNAME(card), rc);
7170 return rc;
7171 }
7172 return 0;
7173}
7174
7175static int
7176qeth_start_ipa_checksum(struct qeth_card *card)
7177{
7178 int rc = 0;
7179
7180 QETH_DBF_TEXT(trace,3,"strtcsum");
7181
7182 if (card->options.checksum_type == NO_CHECKSUMMING) {
7183 PRINT_WARN("Using no checksumming on %s.\n",
7184 QETH_CARD_IFNAME(card));
7185 return 0;
7186 }
7187 if (card->options.checksum_type == SW_CHECKSUMMING) {
7188 PRINT_WARN("Using SW checksumming on %s.\n",
7189 QETH_CARD_IFNAME(card));
7190 return 0;
7191 }
7192 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7193 PRINT_WARN("Inbound HW Checksumming not "
7194 "supported on %s,\ncontinuing "
7195 "using Inbound SW Checksumming\n",
7196 QETH_CARD_IFNAME(card));
7197 card->options.checksum_type = SW_CHECKSUMMING;
7198 return 0;
7199 }
7200 rc = qeth_send_checksum_command(card);
7201 if (!rc) {
7202 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7203 }
7204 return rc;
7205}
7206
7207static int
7208qeth_start_ipa_tso(struct qeth_card *card)
7209{
7210 int rc;
7211
7212 QETH_DBF_TEXT(trace,3,"sttso");
7213
7214 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7215 PRINT_WARN("Outbound TSO not supported on %s\n",
7216 QETH_CARD_IFNAME(card));
7217 rc = -EOPNOTSUPP;
7218 } else {
7219 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7220 IPA_CMD_ASS_START,0);
7221 if (rc)
7222 PRINT_WARN("Could not start outbound TSO "
7223 "assist on %s: rc=%i\n",
7224 QETH_CARD_IFNAME(card), rc);
7225 else
7226 PRINT_INFO("Outbound TSO enabled\n");
7227 }
7228 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7229 card->options.large_send = QETH_LARGE_SEND_NO;
7230 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7231 }
7232 return rc;
7233}
7234
7235static int
7236qeth_start_ipassists(struct qeth_card *card)
7237{
7238 QETH_DBF_TEXT(trace,3,"strtipas");
7239 qeth_start_ipa_arp_processing(card); /* go on*/
7240 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7241 qeth_start_ipa_source_mac(card); /* go on*/
7242 qeth_start_ipa_vlan(card); /* go on*/
7243 qeth_start_ipa_multicast(card); /* go on*/
7244 qeth_start_ipa_ipv6(card); /* go on*/
7245 qeth_start_ipa_broadcast(card); /* go on*/
7246 qeth_start_ipa_checksum(card); /* go on*/
7247 qeth_start_ipa_tso(card); /* go on*/
7248 return 0;
7249}
7250
7251static int
7252qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7253 enum qeth_prot_versions prot)
7254{
7255 int rc;
7256 struct qeth_ipa_cmd *cmd;
7257 struct qeth_cmd_buffer *iob;
7258
7259 QETH_DBF_TEXT(trace,4,"setroutg");
7260 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7261 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7262 cmd->data.setrtg.type = (type);
7263 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7264
7265 return rc;
7266
7267}
7268
7269static void
7270qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7271 enum qeth_prot_versions prot)
7272{
7273 if (card->info.type == QETH_CARD_TYPE_IQD) {
7274 switch (*type) {
7275 case NO_ROUTER:
7276 case PRIMARY_CONNECTOR:
7277 case SECONDARY_CONNECTOR:
7278 case MULTICAST_ROUTER:
7279 return;
7280 default:
7281 goto out_inval;
7282 }
7283 } else {
7284 switch (*type) {
7285 case NO_ROUTER:
7286 case PRIMARY_ROUTER:
7287 case SECONDARY_ROUTER:
7288 return;
7289 case MULTICAST_ROUTER:
7290 if (qeth_is_ipafunc_supported(card, prot,
7291 IPA_OSA_MC_ROUTER))
7292 return;
7293 default:
7294 goto out_inval;
7295 }
7296 }
7297out_inval:
7298 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7299 "Router status set to 'no router'.\n",
7300 ((*type == PRIMARY_ROUTER)? "primary router" :
7301 (*type == SECONDARY_ROUTER)? "secondary router" :
7302 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7303 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7304 (*type == MULTICAST_ROUTER)? "multicast router" :
7305 "unknown"),
7306 card->dev->name);
7307 *type = NO_ROUTER;
7308}
7309
7310int
7311qeth_setrouting_v4(struct qeth_card *card)
7312{
7313 int rc;
7314
7315 QETH_DBF_TEXT(trace,3,"setrtg4");
7316
7317 qeth_correct_routing_type(card, &card->options.route4.type,
7318 QETH_PROT_IPV4);
7319
7320 rc = qeth_send_setrouting(card, card->options.route4.type,
7321 QETH_PROT_IPV4);
7322 if (rc) {
7323 card->options.route4.type = NO_ROUTER;
7324 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7325 "Type set to 'no router'.\n",
7326 rc, QETH_CARD_IFNAME(card));
7327 }
7328 return rc;
7329}
7330
7331int
7332qeth_setrouting_v6(struct qeth_card *card)
7333{
7334 int rc = 0;
7335
7336 QETH_DBF_TEXT(trace,3,"setrtg6");
7337#ifdef CONFIG_QETH_IPV6
7338
7339 qeth_correct_routing_type(card, &card->options.route6.type,
7340 QETH_PROT_IPV6);
7341
1da177e4
LT		 7342 rc = qeth_send_setrouting(card, card->options.route6.type,
7343 QETH_PROT_IPV6);
7344 if (rc) {
7345 card->options.route6.type = NO_ROUTER;
7346 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7347 "Type set to 'no router'.\n",
7348 rc, QETH_CARD_IFNAME(card));
7349 }
7350#endif
7351 return rc;
7352}
7353
7354int
9cb90de8 7355qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
1da177e4
LT		 7356{
7357 int rc = 0;
7358
9cb90de8
FP		 7359 if (card->dev == NULL) {
7360 card->options.large_send = type;
1da177e4 7361 return 0;
9cb90de8 7362 }
1da177e4 7363 netif_stop_queue(card->dev);
9cb90de8 7364 card->options.large_send = type;
1da177e4
LT		 7365 switch (card->options.large_send) {
7366 case QETH_LARGE_SEND_EDDP:
7367 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7368 break;
7369 case QETH_LARGE_SEND_TSO:
7370 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7371 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7372 } else {
7373 PRINT_WARN("TSO not supported on %s. "
7374 "large_send set to 'no'.\n",
7375 card->dev->name);
7376 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7377 card->options.large_send = QETH_LARGE_SEND_NO;
7378 rc = -EOPNOTSUPP;
7379 }
7380 break;
7381 default: /* includes QETH_LARGE_SEND_NO */
7382 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7383 break;
7384 }
1da177e4
LT		 7385 netif_wake_queue(card->dev);
7386 return rc;
7387}
7388
7389/*
7390 * softsetup card: init IPA stuff
7391 */
7392static int
7393qeth_softsetup_card(struct qeth_card *card)
7394{
7395 int rc;
7396
7397 QETH_DBF_TEXT(setup, 2, "softsetp");
7398
7399 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7400 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7401 if (rc == 0xe080){
7402 PRINT_WARN("LAN on card %s if offline! "
7403 "Continuing softsetup.\n",
7404 CARD_BUS_ID(card));
7405 card->lan_online = 0;
7406 } else
7407 return rc;
7408 } else
7409 card->lan_online = 1;
500f83ab
UB		 7410 if (card->info.type==QETH_CARD_TYPE_OSN)
7411 goto out;
66cc5d5a 7412 qeth_set_large_send(card, card->options.large_send);
1da177e4
LT		 7413 if (card->options.layer2) {
7414 card->dev->features |=
7415 NETIF_F_HW_VLAN_FILTER |
7416 NETIF_F_HW_VLAN_TX |
7417 NETIF_F_HW_VLAN_RX;
7418 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7419 card->info.broadcast_capable=1;
7420 if ((rc = qeth_layer2_initialize(card))) {
7421 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7422 return rc;
7423 }
7424#ifdef CONFIG_QETH_VLAN
7425 qeth_layer2_process_vlans(card, 0);
7426#endif
7427 goto out;
7428 }
1da177e4
LT		 7429 if ((rc = qeth_setadapter_parms(card)))
7430 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7431 if ((rc = qeth_start_ipassists(card)))
7432 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7433 if ((rc = qeth_setrouting_v4(card)))
7434 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7435 if ((rc = qeth_setrouting_v6(card)))
7436 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7437out:
7438 netif_stop_queue(card->dev);
7439 return 0;
7440}
7441
7442#ifdef CONFIG_QETH_IPV6
7443static int
7444qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7445 unsigned long data)
7446{
7447 struct qeth_ipa_cmd *cmd;
7448
7449 cmd = (struct qeth_ipa_cmd *) data;
7450 if (cmd->hdr.return_code == 0)
7451 card->info.unique_id = *((__u16 *)
7452 &cmd->data.create_destroy_addr.unique_id[6]);
7453 else {
7454 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7455 UNIQUE_ID_NOT_BY_CARD;
7456 PRINT_WARN("couldn't get a unique id from the card on device "
7457 "%s (result=x%x), using default id. ipv6 "
7458 "autoconfig on other lpars may lead to duplicate "
7459 "ip addresses. please use manually "
7460 "configured ones.\n",
7461 CARD_BUS_ID(card), cmd->hdr.return_code);
7462 }
7463 return 0;
7464}
7465#endif
7466
7467static int
7468qeth_put_unique_id(struct qeth_card *card)
7469{
7470
7471 int rc = 0;
7472#ifdef CONFIG_QETH_IPV6
7473 struct qeth_cmd_buffer *iob;
7474 struct qeth_ipa_cmd *cmd;
7475
7476 QETH_DBF_TEXT(trace,2,"puniqeid");
7477
7478 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7479 UNIQUE_ID_NOT_BY_CARD)
7480 return -1;
7481 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7482 QETH_PROT_IPV6);
7483 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7484 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7485 card->info.unique_id;
7486 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7487 card->dev->dev_addr, OSA_ADDR_LEN);
7488 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7489#else
7490 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7491 UNIQUE_ID_NOT_BY_CARD;
7492#endif
7493 return rc;
7494}
7495
7496/**
7497 * Clear IP List
7498 */
7499static void
7500qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7501{
7502 struct qeth_ipaddr *addr, *tmp;
7503 unsigned long flags;
7504
7505 QETH_DBF_TEXT(trace,4,"clearip");
7506 spin_lock_irqsave(&card->ip_lock, flags);
7507 /* clear todo list */
7508 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7509 list_del(&addr->entry);
7510 kfree(addr);
7511 }
7512
7513 while (!list_empty(&card->ip_list)) {
7514 addr = list_entry(card->ip_list.next,
7515 struct qeth_ipaddr, entry);
7516 list_del_init(&addr->entry);
7517 if (clean) {
7518 spin_unlock_irqrestore(&card->ip_lock, flags);
7519 qeth_deregister_addr_entry(card, addr);
7520 spin_lock_irqsave(&card->ip_lock, flags);
7521 }
7522 if (!recover || addr->is_multicast) {
7523 kfree(addr);
7524 continue;
7525 }
7526 list_add_tail(&addr->entry, card->ip_tbd_list);
7527 }
7528 spin_unlock_irqrestore(&card->ip_lock, flags);
7529}
7530
7531static void
7532qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7533 int clear_start_mask)
7534{
7535 unsigned long flags;
7536
7537 spin_lock_irqsave(&card->thread_mask_lock, flags);
7538 card->thread_allowed_mask = threads;
7539 if (clear_start_mask)
7540 card->thread_start_mask &= threads;
7541 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7542 wake_up(&card->wait_q);
7543}
7544
7545static inline int
7546qeth_threads_running(struct qeth_card *card, unsigned long threads)
7547{
7548 unsigned long flags;
7549 int rc = 0;
7550
7551 spin_lock_irqsave(&card->thread_mask_lock, flags);
7552 rc = (card->thread_running_mask & threads);
7553 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7554 return rc;
7555}
7556
7557static int
7558qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7559{
7560 return wait_event_interruptible(card->wait_q,
7561 qeth_threads_running(card, threads) == 0);
7562}
7563
7564static int
05e08a2a 7565qeth_stop_card(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7566{
7567 int rc = 0;
7568
7569 QETH_DBF_TEXT(setup ,2,"stopcard");
7570 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7571
7572 qeth_set_allowed_threads(card, 0, 1);
7573 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7574 return -ERESTARTSYS;
7575 if (card->read.state == CH_STATE_UP &&
7576 card->write.state == CH_STATE_UP &&
7577 (card->state == CARD_STATE_UP)) {
500f83ab
UB		 7578 if (recovery_mode &&
7579 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7580 qeth_stop(card->dev);
7581 } else {
7582 rtnl_lock();
7583 dev_close(card->dev);
7584 rtnl_unlock();
7585 }
1da177e4
LT		 7586 if (!card->use_hard_stop) {
7587 __u8 *mac = &card->dev->dev_addr[0];
7588 rc = qeth_layer2_send_delmac(card, mac);
7589 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7590 if ((rc = qeth_send_stoplan(card)))
7591 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7592 }
7593 card->state = CARD_STATE_SOFTSETUP;
7594 }
7595 if (card->state == CARD_STATE_SOFTSETUP) {
7596#ifdef CONFIG_QETH_VLAN
7597 if (card->options.layer2)
7598 qeth_layer2_process_vlans(card, 1);
7599#endif
7600 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7601 qeth_clear_ipacmd_list(card);
7602 card->state = CARD_STATE_HARDSETUP;
7603 }
7604 if (card->state == CARD_STATE_HARDSETUP) {
7605 if ((!card->use_hard_stop) &&
7606 (!card->options.layer2))
7607 if ((rc = qeth_put_unique_id(card)))
7608 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7609 qeth_qdio_clear_card(card, 0);
7610 qeth_clear_qdio_buffers(card);
7611 qeth_clear_working_pool_list(card);
7612 card->state = CARD_STATE_DOWN;
7613 }
7614 if (card->state == CARD_STATE_DOWN) {
7615 qeth_clear_cmd_buffers(&card->read);
7616 qeth_clear_cmd_buffers(&card->write);
7617 }
7618 card->use_hard_stop = 0;
7619 return rc;
7620}
7621
7622
7623static int
7624qeth_get_unique_id(struct qeth_card *card)
7625{
7626 int rc = 0;
7627#ifdef CONFIG_QETH_IPV6
7628 struct qeth_cmd_buffer *iob;
7629 struct qeth_ipa_cmd *cmd;
7630
7631 QETH_DBF_TEXT(setup, 2, "guniqeid");
7632
7633 if (!qeth_is_supported(card,IPA_IPV6)) {
7634 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7635 UNIQUE_ID_NOT_BY_CARD;
7636 return 0;
7637 }
7638
7639 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7640 QETH_PROT_IPV6);
7641 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7642 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7643 card->info.unique_id;
7644
7645 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7646#else
7647 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7648 UNIQUE_ID_NOT_BY_CARD;
7649#endif
7650 return rc;
7651}
7652static void
7653qeth_print_status_with_portname(struct qeth_card *card)
7654{
7655 char dbf_text[15];
7656 int i;
7657
7658 sprintf(dbf_text, "%s", card->info.portname + 1);
7659 for (i = 0; i < 8; i++)
7660 dbf_text[i] =
7661 (char) _ebcasc[(__u8) dbf_text[i]];
7662 dbf_text[8] = 0;
7663 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7664 "with link type %s (portname: %s)\n",
7665 CARD_RDEV_ID(card),
7666 CARD_WDEV_ID(card),
7667 CARD_DDEV_ID(card),
7668 qeth_get_cardname(card),
7669 (card->info.mcl_level[0]) ? " (level: " : "",
7670 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7671 (card->info.mcl_level[0]) ? ")" : "",
7672 qeth_get_cardname_short(card),
7673 dbf_text);
7674
7675}
7676
7677static void
7678qeth_print_status_no_portname(struct qeth_card *card)
7679{
7680 if (card->info.portname[0])
7681 printk("qeth: Device %s/%s/%s is a%s "
7682 "card%s%s%s\nwith link type %s "
7683 "(no portname needed by interface).\n",
7684 CARD_RDEV_ID(card),
7685 CARD_WDEV_ID(card),
7686 CARD_DDEV_ID(card),
7687 qeth_get_cardname(card),
7688 (card->info.mcl_level[0]) ? " (level: " : "",
7689 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7690 (card->info.mcl_level[0]) ? ")" : "",
7691 qeth_get_cardname_short(card));
7692 else
7693 printk("qeth: Device %s/%s/%s is a%s "
7694 "card%s%s%s\nwith link type %s.\n",
7695 CARD_RDEV_ID(card),
7696 CARD_WDEV_ID(card),
7697 CARD_DDEV_ID(card),
7698 qeth_get_cardname(card),
7699 (card->info.mcl_level[0]) ? " (level: " : "",
7700 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7701 (card->info.mcl_level[0]) ? ")" : "",
7702 qeth_get_cardname_short(card));
7703}
7704
7705static void
7706qeth_print_status_message(struct qeth_card *card)
7707{
7708 switch (card->info.type) {
7709 case QETH_CARD_TYPE_OSAE:
7710 /* VM will use a non-zero first character
7711 * to indicate a HiperSockets like reporting
7712 * of the level OSA sets the first character to zero
7713 * */
7714 if (!card->info.mcl_level[0]) {
7715 sprintf(card->info.mcl_level,"%02x%02x",
7716 card->info.mcl_level[2],
7717 card->info.mcl_level[3]);
7718
7719 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7720 break;
7721 }
7722 /* fallthrough */
7723 case QETH_CARD_TYPE_IQD:
7724 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7725 card->info.mcl_level[0]];
7726 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7727 card->info.mcl_level[1]];
7728 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7729 card->info.mcl_level[2]];
7730 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7731 card->info.mcl_level[3]];
7732 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7733 break;
7734 default:
7735 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7736 }
7737 if (card->info.portname_required)
7738 qeth_print_status_with_portname(card);
7739 else
7740 qeth_print_status_no_portname(card);
7741}
7742
7743static int
7744qeth_register_netdev(struct qeth_card *card)
7745{
7746 QETH_DBF_TEXT(setup, 3, "regnetd");
7747 if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7748 qeth_netdev_init(card->dev);
7749 return 0;
7750 }
7751 /* sysfs magic */
7752 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7753 return register_netdev(card->dev);
7754}
7755
7756static void
05e08a2a 7757qeth_start_again(struct qeth_card *card, int recovery_mode)
1da177e4
LT		 7758{
7759 QETH_DBF_TEXT(setup ,2, "startag");
7760
500f83ab
UB		 7761 if (recovery_mode &&
7762 card->info.type != QETH_CARD_TYPE_OSN) {
05e08a2a
FP		 7763 qeth_open(card->dev);
7764 } else {
7765 rtnl_lock();
7766 dev_open(card->dev);
7767 rtnl_unlock();
7768 }
1da177e4
LT		 7769 /* this also sets saved unicast addresses */
7770 qeth_set_multicast_list(card->dev);
7771}
7772
7773
7774/* Layer 2 specific stuff */
7775#define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7776 if (card->options.option == value) { \
7777 PRINT_ERR("%s not supported with layer 2 " \
7778 "functionality, ignoring option on read" \
7779 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7780 card->options.option = reset_value; \
7781 }
7782#define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7783 if (card->options.option != value) { \
7784 PRINT_ERR("%s not supported with layer 2 " \
7785 "functionality, ignoring option on read" \
7786 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7787 card->options.option = reset_value; \
7788 }
7789
7790
7791static void qeth_make_parameters_consistent(struct qeth_card *card)
7792{
7793
500f83ab
UB		 7794 if (card->options.layer2 == 0)
7795 return;
7796 if (card->info.type == QETH_CARD_TYPE_OSN)
7797 return;
7798 if (card->info.type == QETH_CARD_TYPE_IQD) {
7799 PRINT_ERR("Device %s does not support layer 2 functionality." \
7800 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7801 card->options.layer2 = 0;
7802 return;
7803 }
7804 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7805 "Routing options are");
1da177e4 7806#ifdef CONFIG_QETH_IPV6
500f83ab
UB		 7807 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7808 "Routing options are");
1da177e4 7809#endif
500f83ab
UB		 7810 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7811 QETH_CHECKSUM_DEFAULT,
7812 "Checksumming options are");
7813 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7814 QETH_TR_BROADCAST_ALLRINGS,
7815 "Broadcast mode options are");
7816 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7817 QETH_TR_MACADDR_NONCANONICAL,
7818 "Canonical MAC addr options are");
7819 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7820 "Broadcast faking options are");
7821 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7822 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7823 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
1da177e4
LT		 7824}
7825
7826
7827static int
05e08a2a 7828__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
1da177e4
LT		 7829{
7830 struct qeth_card *card = gdev->dev.driver_data;
7831 int rc = 0;
7832 enum qeth_card_states recover_flag;
7833
7834 BUG_ON(!card);
7835 QETH_DBF_TEXT(setup ,2, "setonlin");
7836 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7837
7838 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7839 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7840 PRINT_WARN("set_online of card %s interrupted by user!\n",
7841 CARD_BUS_ID(card));
7842 return -ERESTARTSYS;
7843 }
7844
7845 recover_flag = card->state;
7846 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7847 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7848 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7849 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7850 return -EIO;
7851 }
7852
500f83ab 7853 qeth_make_parameters_consistent(card);
1da177e4
LT		 7854
7855 if ((rc = qeth_hardsetup_card(card))){
7856 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7857 goto out_remove;
7858 }
7859 card->state = CARD_STATE_HARDSETUP;
7860
7861 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7862 rc = qeth_get_unique_id(card);
7863
7864 if (rc && card->options.layer2 == 0) {
7865 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7866 goto out_remove;
7867 }
7868 qeth_print_status_message(card);
7869 if ((rc = qeth_register_netdev(card))){
7870 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7871 goto out_remove;
7872 }
7873 if ((rc = qeth_softsetup_card(card))){
7874 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7875 goto out_remove;
7876 }
7877 card->state = CARD_STATE_SOFTSETUP;
7878
7879 if ((rc = qeth_init_qdio_queues(card))){
7880 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7881 goto out_remove;
7882 }
4965e97f
FP		 7883 netif_carrier_on(card->dev);
7884
1da177e4
LT		 7885 qeth_set_allowed_threads(card, 0xffffffff, 0);
7886 if (recover_flag == CARD_STATE_RECOVER)
05e08a2a 7887 qeth_start_again(card, recovery_mode);
1da177e4
LT		 7888 qeth_notify_processes();
7889 return 0;
7890out_remove:
7891 card->use_hard_stop = 1;
05e08a2a 7892 qeth_stop_card(card, 0);
1da177e4
LT		 7893 ccw_device_set_offline(CARD_DDEV(card));
7894 ccw_device_set_offline(CARD_WDEV(card));
7895 ccw_device_set_offline(CARD_RDEV(card));
7896 if (recover_flag == CARD_STATE_RECOVER)
7897 card->state = CARD_STATE_RECOVER;
7898 else
7899 card->state = CARD_STATE_DOWN;
7900 return -ENODEV;
7901}
7902
05e08a2a
FP		 7903static int
7904qeth_set_online(struct ccwgroup_device *gdev)
7905{
7906 return __qeth_set_online(gdev, 0);
7907}
7908
1da177e4
LT		 7909static struct ccw_device_id qeth_ids[] = {
7910 {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7911 {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
500f83ab 7912 {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
1da177e4
LT		 7913 {},
7914};
7915MODULE_DEVICE_TABLE(ccw, qeth_ids);
7916
7917struct device *qeth_root_dev = NULL;
7918
7919struct ccwgroup_driver qeth_ccwgroup_driver = {
7920 .owner = THIS_MODULE,
7921 .name = "qeth",
7922 .driver_id = 0xD8C5E3C8,
7923 .probe = qeth_probe_device,
7924 .remove = qeth_remove_device,
7925 .set_online = qeth_set_online,
7926 .set_offline = qeth_set_offline,
7927};
7928
7929struct ccw_driver qeth_ccw_driver = {
7930 .name = "qeth",
7931 .ids = qeth_ids,
7932 .probe = ccwgroup_probe_ccwdev,
7933 .remove = ccwgroup_remove_ccwdev,
7934};
7935
7936
7937static void
7938qeth_unregister_dbf_views(void)
7939{
7940 if (qeth_dbf_setup)
7941 debug_unregister(qeth_dbf_setup);
7942 if (qeth_dbf_qerr)
7943 debug_unregister(qeth_dbf_qerr);
7944 if (qeth_dbf_sense)
7945 debug_unregister(qeth_dbf_sense);
7946 if (qeth_dbf_misc)
7947 debug_unregister(qeth_dbf_misc);
7948 if (qeth_dbf_data)
7949 debug_unregister(qeth_dbf_data);
7950 if (qeth_dbf_control)
7951 debug_unregister(qeth_dbf_control);
7952 if (qeth_dbf_trace)
7953 debug_unregister(qeth_dbf_trace);
7954}
7955static int
7956qeth_register_dbf_views(void)
7957{
7958 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
66a464db 7959 QETH_DBF_SETUP_PAGES,
1da177e4
LT		 7960 QETH_DBF_SETUP_NR_AREAS,
7961 QETH_DBF_SETUP_LEN);
7962 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
66a464db 7963 QETH_DBF_MISC_PAGES,
1da177e4
LT		 7964 QETH_DBF_MISC_NR_AREAS,
7965 QETH_DBF_MISC_LEN);
7966 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
66a464db 7967 QETH_DBF_DATA_PAGES,
1da177e4
LT		 7968 QETH_DBF_DATA_NR_AREAS,
7969 QETH_DBF_DATA_LEN);
7970 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
66a464db 7971 QETH_DBF_CONTROL_PAGES,
1da177e4
LT		 7972 QETH_DBF_CONTROL_NR_AREAS,
7973 QETH_DBF_CONTROL_LEN);
7974 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
66a464db 7975 QETH_DBF_SENSE_PAGES,
1da177e4
LT		 7976 QETH_DBF_SENSE_NR_AREAS,
7977 QETH_DBF_SENSE_LEN);
7978 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
66a464db 7979 QETH_DBF_QERR_PAGES,
1da177e4
LT		 7980 QETH_DBF_QERR_NR_AREAS,
7981 QETH_DBF_QERR_LEN);
7982 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
66a464db 7983 QETH_DBF_TRACE_PAGES,
1da177e4
LT		 7984 QETH_DBF_TRACE_NR_AREAS,
7985 QETH_DBF_TRACE_LEN);
7986
7987 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
7988 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
7989 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
7990 (qeth_dbf_trace == NULL)) {
7991 qeth_unregister_dbf_views();
7992 return -ENOMEM;
7993 }
7994 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7995 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7996
7997 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7998 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7999
8000 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8001 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8002
8003 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8004 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8005
8006 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8007 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8008
8009 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8010 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8011
8012 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8013 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8014
8015 return 0;
8016}
8017
8018#ifdef CONFIG_QETH_IPV6
8019extern struct neigh_table arp_tbl;
8020static struct neigh_ops *arp_direct_ops;
8021static int (*qeth_old_arp_constructor) (struct neighbour *);
8022
8023static struct neigh_ops arp_direct_ops_template = {
8024 .family = AF_INET,
8025 .destructor = NULL,
8026 .solicit = NULL,
8027 .error_report = NULL,
8028 .output = dev_queue_xmit,
8029 .connected_output = dev_queue_xmit,
8030 .hh_output = dev_queue_xmit,
8031 .queue_xmit = dev_queue_xmit
8032};
8033
8034static int
8035qeth_arp_constructor(struct neighbour *neigh)
8036{
8037 struct net_device *dev = neigh->dev;
8038 struct in_device *in_dev;
8039 struct neigh_parms *parms;
8040 struct qeth_card *card;
8041
8042 card = qeth_get_card_from_dev(dev);
8043 if (card == NULL)
8044 goto out;
8045 if((card->options.layer2) ||
8046 (card->dev->hard_header == qeth_fake_header))
8047 goto out;
8048
8049 rcu_read_lock();
e5ed6399 8050 in_dev = __in_dev_get_rcu(dev);
1da177e4
LT		 8051 if (in_dev == NULL) {
8052 rcu_read_unlock();
8053 return -EINVAL;
8054 }
8055
8056 parms = in_dev->arp_parms;
8057 __neigh_parms_put(neigh->parms);
8058 neigh->parms = neigh_parms_clone(parms);
8059 rcu_read_unlock();
8060
8061 neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8062 neigh->nud_state = NUD_NOARP;
8063 neigh->ops = arp_direct_ops;
8064 neigh->output = neigh->ops->queue_xmit;
8065 return 0;
8066out:
8067 return qeth_old_arp_constructor(neigh);
8068}
8069#endif /*CONFIG_QETH_IPV6*/
8070
8071/*
8072 * IP address takeover related functions
8073 */
8074static void
8075qeth_clear_ipato_list(struct qeth_card *card)
8076{
8077 struct qeth_ipato_entry *ipatoe, *tmp;
8078 unsigned long flags;
8079
8080 spin_lock_irqsave(&card->ip_lock, flags);
8081 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8082 list_del(&ipatoe->entry);
8083 kfree(ipatoe);
8084 }
8085 spin_unlock_irqrestore(&card->ip_lock, flags);
8086}
8087
8088int
8089qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8090{
8091 struct qeth_ipato_entry *ipatoe;
8092 unsigned long flags;
8093 int rc = 0;
8094
8095 QETH_DBF_TEXT(trace, 2, "addipato");
8096 spin_lock_irqsave(&card->ip_lock, flags);
8097 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8098 if (ipatoe->proto != new->proto)
8099 continue;
8100 if (!memcmp(ipatoe->addr, new->addr,
8101 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8102 (ipatoe->mask_bits == new->mask_bits)){
8103 PRINT_WARN("ipato entry already exists!\n");
8104 rc = -EEXIST;
8105 break;
8106 }
8107 }
8108 if (!rc) {
8109 list_add_tail(&new->entry, &card->ipato.entries);
8110 }
8111 spin_unlock_irqrestore(&card->ip_lock, flags);
8112 return rc;
8113}
8114
8115void
8116qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8117 u8 *addr, int mask_bits)
8118{
8119 struct qeth_ipato_entry *ipatoe, *tmp;
8120 unsigned long flags;
8121
8122 QETH_DBF_TEXT(trace, 2, "delipato");
8123 spin_lock_irqsave(&card->ip_lock, flags);
8124 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8125 if (ipatoe->proto != proto)
8126 continue;
8127 if (!memcmp(ipatoe->addr, addr,
8128 (proto == QETH_PROT_IPV4)? 4:16) &&
8129 (ipatoe->mask_bits == mask_bits)){
8130 list_del(&ipatoe->entry);
8131 kfree(ipatoe);
8132 }
8133 }
8134 spin_unlock_irqrestore(&card->ip_lock, flags);
8135}
8136
8137static inline void
8138qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8139{
8140 int i, j;
8141 u8 octet;
8142
8143 for (i = 0; i < len; ++i){
8144 octet = addr[i];
8145 for (j = 7; j >= 0; --j){
8146 bits[i*8 + j] = octet & 1;
8147 octet >>= 1;
8148 }
8149 }
8150}
8151
8152static int
8153qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8154{
8155 struct qeth_ipato_entry *ipatoe;
8156 u8 addr_bits[128] = {0, };
8157 u8 ipatoe_bits[128] = {0, };
8158 int rc = 0;
8159
8160 if (!card->ipato.enabled)
8161 return 0;
8162
8163 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8164 (addr->proto == QETH_PROT_IPV4)? 4:16);
8165 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8166 if (addr->proto != ipatoe->proto)
8167 continue;
8168 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8169 (ipatoe->proto==QETH_PROT_IPV4) ?
8170 4:16);
8171 if (addr->proto == QETH_PROT_IPV4)
8172 rc = !memcmp(addr_bits, ipatoe_bits,
8173 min(32, ipatoe->mask_bits));
8174 else
8175 rc = !memcmp(addr_bits, ipatoe_bits,
8176 min(128, ipatoe->mask_bits));
8177 if (rc)
8178 break;
8179 }
8180 /* invert? */
8181 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8182 rc = !rc;
8183 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8184 rc = !rc;
8185
8186 return rc;
8187}
8188
8189/*
8190 * VIPA related functions
8191 */
8192int
8193qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8194 const u8 *addr)
8195{
8196 struct qeth_ipaddr *ipaddr;
8197 unsigned long flags;
8198 int rc = 0;
8199
8200 ipaddr = qeth_get_addr_buffer(proto);
8201 if (ipaddr){
8202 if (proto == QETH_PROT_IPV4){
8203 QETH_DBF_TEXT(trace, 2, "addvipa4");
8204 memcpy(&ipaddr->u.a4.addr, addr, 4);
8205 ipaddr->u.a4.mask = 0;
8206#ifdef CONFIG_QETH_IPV6
8207 } else if (proto == QETH_PROT_IPV6){
8208 QETH_DBF_TEXT(trace, 2, "addvipa6");
8209 memcpy(&ipaddr->u.a6.addr, addr, 16);
8210 ipaddr->u.a6.pfxlen = 0;
8211#endif
8212 }
8213 ipaddr->type = QETH_IP_TYPE_VIPA;
8214 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8215 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8216 } else
8217 return -ENOMEM;
8218 spin_lock_irqsave(&card->ip_lock, flags);
8219 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8220 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8221 rc = -EEXIST;
8222 spin_unlock_irqrestore(&card->ip_lock, flags);
8223 if (rc){
8224 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8225 return rc;
8226 }
8227 if (!qeth_add_ip(card, ipaddr))
8228 kfree(ipaddr);
8229 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8230 schedule_work(&card->kernel_thread_starter);
8231 return rc;
8232}
8233
8234void
8235qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8236 const u8 *addr)
8237{
8238 struct qeth_ipaddr *ipaddr;
8239
8240 ipaddr = qeth_get_addr_buffer(proto);
8241 if (ipaddr){
8242 if (proto == QETH_PROT_IPV4){
8243 QETH_DBF_TEXT(trace, 2, "delvipa4");
8244 memcpy(&ipaddr->u.a4.addr, addr, 4);
8245 ipaddr->u.a4.mask = 0;
8246#ifdef CONFIG_QETH_IPV6
8247 } else if (proto == QETH_PROT_IPV6){
8248 QETH_DBF_TEXT(trace, 2, "delvipa6");
8249 memcpy(&ipaddr->u.a6.addr, addr, 16);
8250 ipaddr->u.a6.pfxlen = 0;
8251#endif
8252 }
8253 ipaddr->type = QETH_IP_TYPE_VIPA;
8254 } else
8255 return;
8256 if (!qeth_delete_ip(card, ipaddr))
8257 kfree(ipaddr);
8258 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8259 schedule_work(&card->kernel_thread_starter);
8260}
8261
8262/*
8263 * proxy ARP related functions
8264 */
8265int
8266qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8267 const u8 *addr)
8268{
8269 struct qeth_ipaddr *ipaddr;
8270 unsigned long flags;
8271 int rc = 0;
8272
8273 ipaddr = qeth_get_addr_buffer(proto);
8274 if (ipaddr){
8275 if (proto == QETH_PROT_IPV4){
8276 QETH_DBF_TEXT(trace, 2, "addrxip4");
8277 memcpy(&ipaddr->u.a4.addr, addr, 4);
8278 ipaddr->u.a4.mask = 0;
8279#ifdef CONFIG_QETH_IPV6
8280 } else if (proto == QETH_PROT_IPV6){
8281 QETH_DBF_TEXT(trace, 2, "addrxip6");
8282 memcpy(&ipaddr->u.a6.addr, addr, 16);
8283 ipaddr->u.a6.pfxlen = 0;
8284#endif
8285 }
8286 ipaddr->type = QETH_IP_TYPE_RXIP;
8287 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8288 ipaddr->del_flags = 0;
8289 } else
8290 return -ENOMEM;
8291 spin_lock_irqsave(&card->ip_lock, flags);
8292 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8293 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8294 rc = -EEXIST;
8295 spin_unlock_irqrestore(&card->ip_lock, flags);
8296 if (rc){
8297 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8298 return rc;
8299 }
8300 if (!qeth_add_ip(card, ipaddr))
8301 kfree(ipaddr);
8302 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8303 schedule_work(&card->kernel_thread_starter);
8304 return 0;
8305}
8306
8307void
8308qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8309 const u8 *addr)
8310{
8311 struct qeth_ipaddr *ipaddr;
8312
8313 ipaddr = qeth_get_addr_buffer(proto);
8314 if (ipaddr){
8315 if (proto == QETH_PROT_IPV4){
8316 QETH_DBF_TEXT(trace, 2, "addrxip4");
8317 memcpy(&ipaddr->u.a4.addr, addr, 4);
8318 ipaddr->u.a4.mask = 0;
8319#ifdef CONFIG_QETH_IPV6
8320 } else if (proto == QETH_PROT_IPV6){
8321 QETH_DBF_TEXT(trace, 2, "addrxip6");
8322 memcpy(&ipaddr->u.a6.addr, addr, 16);
8323 ipaddr->u.a6.pfxlen = 0;
8324#endif
8325 }
8326 ipaddr->type = QETH_IP_TYPE_RXIP;
8327 } else
8328 return;
8329 if (!qeth_delete_ip(card, ipaddr))
8330 kfree(ipaddr);
8331 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8332 schedule_work(&card->kernel_thread_starter);
8333}
8334
8335/**
8336 * IP event handler
8337 */
8338static int
8339qeth_ip_event(struct notifier_block *this,
8340 unsigned long event,void *ptr)
8341{
8342 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8343 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8344 struct qeth_ipaddr *addr;
8345 struct qeth_card *card;
8346
8347 QETH_DBF_TEXT(trace,3,"ipevent");
8348 card = qeth_get_card_from_dev(dev);
8349 if (!card)
8350 return NOTIFY_DONE;
8351 if (card->options.layer2)
8352 return NOTIFY_DONE;
8353
8354 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8355 if (addr != NULL) {
8356 addr->u.a4.addr = ifa->ifa_address;
8357 addr->u.a4.mask = ifa->ifa_mask;
8358 addr->type = QETH_IP_TYPE_NORMAL;
8359 } else
8360 goto out;
8361
8362 switch(event) {
8363 case NETDEV_UP:
8364 if (!qeth_add_ip(card, addr))
8365 kfree(addr);
8366 break;
8367 case NETDEV_DOWN:
8368 if (!qeth_delete_ip(card, addr))
8369 kfree(addr);
8370 break;
8371 default:
8372 break;
8373 }
8374 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8375 schedule_work(&card->kernel_thread_starter);
8376out:
8377 return NOTIFY_DONE;
8378}
8379
8380static struct notifier_block qeth_ip_notifier = {
8381 qeth_ip_event,
8382 0
8383};
8384
8385#ifdef CONFIG_QETH_IPV6
8386/**
8387 * IPv6 event handler
8388 */
8389static int
8390qeth_ip6_event(struct notifier_block *this,
8391 unsigned long event,void *ptr)
8392{
8393
8394 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8395 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8396 struct qeth_ipaddr *addr;
8397 struct qeth_card *card;
8398
8399 QETH_DBF_TEXT(trace,3,"ip6event");
8400
8401 card = qeth_get_card_from_dev(dev);
8402 if (!card)
8403 return NOTIFY_DONE;
8404 if (!qeth_is_supported(card, IPA_IPV6))
8405 return NOTIFY_DONE;
8406
8407 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8408 if (addr != NULL) {
8409 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8410 addr->u.a6.pfxlen = ifa->prefix_len;
8411 addr->type = QETH_IP_TYPE_NORMAL;
8412 } else
8413 goto out;
8414
8415 switch(event) {
8416 case NETDEV_UP:
8417 if (!qeth_add_ip(card, addr))
8418 kfree(addr);
8419 break;
8420 case NETDEV_DOWN:
8421 if (!qeth_delete_ip(card, addr))
8422 kfree(addr);
8423 break;
8424 default:
8425 break;
8426 }
8427 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8428 schedule_work(&card->kernel_thread_starter);
8429out:
8430 return NOTIFY_DONE;
8431}
8432
8433static struct notifier_block qeth_ip6_notifier = {
8434 qeth_ip6_event,
8435 0
8436};
8437#endif
8438
8439static int
66aea23f 8440__qeth_reboot_event_card(struct device *dev, void *data)
1da177e4 8441{
1da177e4
LT		 8442 struct qeth_card *card;
8443
66aea23f
CH		 8444 card = (struct qeth_card *) dev->driver_data;
8445 qeth_clear_ip_list(card, 0, 0);
8446 qeth_qdio_clear_card(card, 0);
8447 return 0;
8448}
8449
8450static int
8451qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8452{
8453
8454 driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8455 __qeth_reboot_event_card);
1da177e4
LT		 8456 return NOTIFY_DONE;
8457}
8458
8459
8460static struct notifier_block qeth_reboot_notifier = {
8461 qeth_reboot_event,
8462 0
8463};
8464
8465static int
8466qeth_register_notifiers(void)
8467{
8468 int r;
8469
8470 QETH_DBF_TEXT(trace,5,"regnotif");
8471 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8472 return r;
8473 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8474 goto out_reboot;
8475#ifdef CONFIG_QETH_IPV6
8476 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8477 goto out_ipv4;
8478#endif
8479 return 0;
8480
8481#ifdef CONFIG_QETH_IPV6
8482out_ipv4:
8483 unregister_inetaddr_notifier(&qeth_ip_notifier);
8484#endif
8485out_reboot:
8486 unregister_reboot_notifier(&qeth_reboot_notifier);
8487 return r;
8488}
8489
8490/**
8491 * unregister all event notifiers
8492 */
8493static void
8494qeth_unregister_notifiers(void)
8495{
8496
8497 QETH_DBF_TEXT(trace,5,"unregnot");
8498 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8499 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8500#ifdef CONFIG_QETH_IPV6
8501 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8502#endif /* QETH_IPV6 */
8503
8504}
8505
8506#ifdef CONFIG_QETH_IPV6
8507static int
8508qeth_ipv6_init(void)
8509{
8510 qeth_old_arp_constructor = arp_tbl.constructor;
8511 write_lock(&arp_tbl.lock);
8512 arp_tbl.constructor = qeth_arp_constructor;
8513 write_unlock(&arp_tbl.lock);
8514
8515 arp_direct_ops = (struct neigh_ops*)
8516 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8517 if (!arp_direct_ops)
8518 return -ENOMEM;
8519
8520 memcpy(arp_direct_ops, &arp_direct_ops_template,
8521 sizeof(struct neigh_ops));
8522
8523 return 0;
8524}
8525
8526static void
8527qeth_ipv6_uninit(void)
8528{
8529 write_lock(&arp_tbl.lock);
8530 arp_tbl.constructor = qeth_old_arp_constructor;
8531 write_unlock(&arp_tbl.lock);
8532 kfree(arp_direct_ops);
8533}
8534#endif /* CONFIG_QETH_IPV6 */
8535
8536static void
8537qeth_sysfs_unregister(void)
8538{
8539 qeth_remove_driver_attributes();
8540 ccw_driver_unregister(&qeth_ccw_driver);
8541 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8542 s390_root_dev_unregister(qeth_root_dev);
8543}
8544/**
8545 * register qeth at sysfs
8546 */
8547static int
8548qeth_sysfs_register(void)
8549{
8550 int rc=0;
8551
8552 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8553 if (rc)
8554 return rc;
8555 rc = ccw_driver_register(&qeth_ccw_driver);
8556 if (rc)
8557 return rc;
8558 rc = qeth_create_driver_attributes();
8559 if (rc)
8560 return rc;
8561 qeth_root_dev = s390_root_dev_register("qeth");
8562 if (IS_ERR(qeth_root_dev)) {
8563 rc = PTR_ERR(qeth_root_dev);
8564 return rc;
8565 }
8566 return 0;
8567}
8568
8569/***
8570 * init function
8571 */
8572static int __init
8573qeth_init(void)
8574{
8575 int rc=0;
8576
e018ba1f 8577 PRINT_INFO("loading %s\n", version);
1da177e4
LT		 8578
8579 INIT_LIST_HEAD(&qeth_card_list.list);
8580 INIT_LIST_HEAD(&qeth_notify_list);
8581 spin_lock_init(&qeth_notify_lock);
8582 rwlock_init(&qeth_card_list.rwlock);
8583
8584 if (qeth_register_dbf_views())
8585 goto out_err;
8586 if (qeth_sysfs_register())
8587 goto out_sysfs;
8588
8589#ifdef CONFIG_QETH_IPV6
8590 if (qeth_ipv6_init()) {
8591 PRINT_ERR("Out of memory during ipv6 init.\n");
8592 goto out_sysfs;
8593 }
8594#endif /* QETH_IPV6 */
8595 if (qeth_register_notifiers())
8596 goto out_ipv6;
8597 if (qeth_create_procfs_entries())
8598 goto out_notifiers;
8599
8600 return rc;
8601
8602out_notifiers:
8603 qeth_unregister_notifiers();
8604out_ipv6:
8605#ifdef CONFIG_QETH_IPV6
8606 qeth_ipv6_uninit();
8607#endif /* QETH_IPV6 */
8608out_sysfs:
8609 qeth_sysfs_unregister();
8610 qeth_unregister_dbf_views();
8611out_err:
8612 PRINT_ERR("Initialization failed");
8613 return rc;
8614}
8615
8616static void
8617__exit qeth_exit(void)
8618{
8619 struct qeth_card *card, *tmp;
8620 unsigned long flags;
8621
8622 QETH_DBF_TEXT(trace,1, "cleanup.");
8623
8624 /*
8625 * Weed would not need to clean up our devices here, because the
8626 * common device layer calls qeth_remove_device for each device
8627 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8628 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8629 * qeth_remove_device called by the common device layer would otherwise
8630 * do a "hard" shutdown (card->use_hard_stop is set to one in
8631 * qeth_remove_device).
8632 */
8633again:
8634 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8635 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8636 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8637 qeth_set_offline(card->gdev);
8638 qeth_remove_device(card->gdev);
8639 goto again;
8640 }
8641 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8642#ifdef CONFIG_QETH_IPV6
8643 qeth_ipv6_uninit();
8644#endif
8645 qeth_unregister_notifiers();
8646 qeth_remove_procfs_entries();
8647 qeth_sysfs_unregister();
8648 qeth_unregister_dbf_views();
8649 printk("qeth: removed\n");
8650}
8651
500f83ab
UB		 8652EXPORT_SYMBOL(qeth_osn_register);
8653EXPORT_SYMBOL(qeth_osn_deregister);
8654EXPORT_SYMBOL(qeth_osn_assist);
1da177e4
LT		 8655module_init(qeth_init);
8656module_exit(qeth_exit);
1387780f 8657MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
1da177e4
LT		 8658MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8659 "Copyright 2000,2003 IBM Corporation\n");
8660
8661MODULE_LICENSE("GPL");
Clone of davem's net-next-2.6 tree