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Merge master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6
[deliverable/linux.git] / drivers / s390 / net / qeth_main.c
1 /*
2 * linux/drivers/s390/net/qeth_main.c
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
11 * Frank Pavlic (fpavlic@de.ibm.com) and
12 * Thomas Spatzier <tspat@de.ibm.com>
13 *
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
29
30 #include <linux/module.h>
31 #include <linux/moduleparam.h>
32 #include <linux/string.h>
33 #include <linux/errno.h>
34 #include <linux/mm.h>
35 #include <linux/ip.h>
36 #include <linux/inetdevice.h>
37 #include <linux/netdevice.h>
38 #include <linux/sched.h>
39 #include <linux/workqueue.h>
40 #include <linux/kernel.h>
41 #include <linux/slab.h>
42 #include <linux/interrupt.h>
43 #include <linux/tcp.h>
44 #include <linux/icmp.h>
45 #include <linux/skbuff.h>
46 #include <linux/in.h>
47 #include <linux/igmp.h>
48 #include <linux/init.h>
49 #include <linux/reboot.h>
50 #include <linux/mii.h>
51 #include <linux/rcupdate.h>
52 #include <linux/ethtool.h>
53
54 #include <net/arp.h>
55 #include <net/ip.h>
56 #include <net/route.h>
57
58 #include <asm/ebcdic.h>
59 #include <asm/io.h>
60 #include <asm/qeth.h>
61 #include <asm/timex.h>
62 #include <asm/semaphore.h>
63 #include <asm/uaccess.h>
64 #include <asm/s390_rdev.h>
65
66 #include "qeth.h"
67 #include "qeth_mpc.h"
68 #include "qeth_fs.h"
69 #include "qeth_eddp.h"
70 #include "qeth_tso.h"
71
72 static const char *version = "qeth S/390 OSA-Express driver";
73
74 /**
75 * Debug Facility Stuff
76 */
77 static debug_info_t *qeth_dbf_setup = NULL;
78 static debug_info_t *qeth_dbf_data = NULL;
79 static debug_info_t *qeth_dbf_misc = NULL;
80 static debug_info_t *qeth_dbf_control = NULL;
81 debug_info_t *qeth_dbf_trace = NULL;
82 static debug_info_t *qeth_dbf_sense = NULL;
83 static debug_info_t *qeth_dbf_qerr = NULL;
84
85 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
86
87 static struct lock_class_key qdio_out_skb_queue_key;
88
89 /**
90 * some more definitions and declarations
91 */
92 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
93
94 /* list of our cards */
95 struct qeth_card_list_struct qeth_card_list;
96 /*process list want to be notified*/
97 spinlock_t qeth_notify_lock;
98 struct list_head qeth_notify_list;
99
100 static void qeth_send_control_data_cb(struct qeth_channel *,
101 struct qeth_cmd_buffer *);
102
103 /**
104 * here we go with function implementation
105 */
106 static void
107 qeth_init_qdio_info(struct qeth_card *card);
108
109 static int
110 qeth_init_qdio_queues(struct qeth_card *card);
111
112 static int
113 qeth_alloc_qdio_buffers(struct qeth_card *card);
114
115 static void
116 qeth_free_qdio_buffers(struct qeth_card *);
117
118 static void
119 qeth_clear_qdio_buffers(struct qeth_card *);
120
121 static void
122 qeth_clear_ip_list(struct qeth_card *, int, int);
123
124 static void
125 qeth_clear_ipacmd_list(struct qeth_card *);
126
127 static int
128 qeth_qdio_clear_card(struct qeth_card *, int);
129
130 static void
131 qeth_clear_working_pool_list(struct qeth_card *);
132
133 static void
134 qeth_clear_cmd_buffers(struct qeth_channel *);
135
136 static int
137 qeth_stop(struct net_device *);
138
139 static void
140 qeth_clear_ipato_list(struct qeth_card *);
141
142 static int
143 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
144
145 static void
146 qeth_irq_tasklet(unsigned long);
147
148 static int
149 qeth_set_online(struct ccwgroup_device *);
150
151 static int
152 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
153
154 static struct qeth_ipaddr *
155 qeth_get_addr_buffer(enum qeth_prot_versions);
156
157 static void
158 qeth_set_multicast_list(struct net_device *);
159
160 static void
161 qeth_setadp_promisc_mode(struct qeth_card *);
162
163 static void
164 qeth_notify_processes(void)
165 {
166 /*notify all registered processes */
167 struct qeth_notify_list_struct *n_entry;
168
169 QETH_DBF_TEXT(trace,3,"procnoti");
170 spin_lock(&qeth_notify_lock);
171 list_for_each_entry(n_entry, &qeth_notify_list, list) {
172 send_sig(n_entry->signum, n_entry->task, 1);
173 }
174 spin_unlock(&qeth_notify_lock);
175
176 }
177 int
178 qeth_notifier_unregister(struct task_struct *p)
179 {
180 struct qeth_notify_list_struct *n_entry, *tmp;
181
182 QETH_DBF_TEXT(trace, 2, "notunreg");
183 spin_lock(&qeth_notify_lock);
184 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
185 if (n_entry->task == p) {
186 list_del(&n_entry->list);
187 kfree(n_entry);
188 goto out;
189 }
190 }
191 out:
192 spin_unlock(&qeth_notify_lock);
193 return 0;
194 }
195 int
196 qeth_notifier_register(struct task_struct *p, int signum)
197 {
198 struct qeth_notify_list_struct *n_entry;
199
200 /*check first if entry already exists*/
201 spin_lock(&qeth_notify_lock);
202 list_for_each_entry(n_entry, &qeth_notify_list, list) {
203 if (n_entry->task == p) {
204 n_entry->signum = signum;
205 spin_unlock(&qeth_notify_lock);
206 return 0;
207 }
208 }
209 spin_unlock(&qeth_notify_lock);
210
211 n_entry = (struct qeth_notify_list_struct *)
212 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
213 if (!n_entry)
214 return -ENOMEM;
215 n_entry->task = p;
216 n_entry->signum = signum;
217 spin_lock(&qeth_notify_lock);
218 list_add(&n_entry->list,&qeth_notify_list);
219 spin_unlock(&qeth_notify_lock);
220 return 0;
221 }
222
223
224 /**
225 * free channel command buffers
226 */
227 static void
228 qeth_clean_channel(struct qeth_channel *channel)
229 {
230 int cnt;
231
232 QETH_DBF_TEXT(setup, 2, "freech");
233 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
234 kfree(channel->iob[cnt].data);
235 }
236
237 /**
238 * free card
239 */
240 static void
241 qeth_free_card(struct qeth_card *card)
242 {
243
244 QETH_DBF_TEXT(setup, 2, "freecrd");
245 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
246 qeth_clean_channel(&card->read);
247 qeth_clean_channel(&card->write);
248 if (card->dev)
249 free_netdev(card->dev);
250 qeth_clear_ip_list(card, 0, 0);
251 qeth_clear_ipato_list(card);
252 kfree(card->ip_tbd_list);
253 qeth_free_qdio_buffers(card);
254 kfree(card);
255 }
256
257 /**
258 * alloc memory for command buffer per channel
259 */
260 static int
261 qeth_setup_channel(struct qeth_channel *channel)
262 {
263 int cnt;
264
265 QETH_DBF_TEXT(setup, 2, "setupch");
266 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
267 channel->iob[cnt].data = (char *)
268 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
269 if (channel->iob[cnt].data == NULL)
270 break;
271 channel->iob[cnt].state = BUF_STATE_FREE;
272 channel->iob[cnt].channel = channel;
273 channel->iob[cnt].callback = qeth_send_control_data_cb;
274 channel->iob[cnt].rc = 0;
275 }
276 if (cnt < QETH_CMD_BUFFER_NO) {
277 while (cnt-- > 0)
278 kfree(channel->iob[cnt].data);
279 return -ENOMEM;
280 }
281 channel->buf_no = 0;
282 channel->io_buf_no = 0;
283 atomic_set(&channel->irq_pending, 0);
284 spin_lock_init(&channel->iob_lock);
285
286 init_waitqueue_head(&channel->wait_q);
287 channel->irq_tasklet.data = (unsigned long) channel;
288 channel->irq_tasklet.func = qeth_irq_tasklet;
289 return 0;
290 }
291
292 /**
293 * alloc memory for card structure
294 */
295 static struct qeth_card *
296 qeth_alloc_card(void)
297 {
298 struct qeth_card *card;
299
300 QETH_DBF_TEXT(setup, 2, "alloccrd");
301 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
302 if (!card)
303 return NULL;
304 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
305 if (qeth_setup_channel(&card->read)) {
306 kfree(card);
307 return NULL;
308 }
309 if (qeth_setup_channel(&card->write)) {
310 qeth_clean_channel(&card->read);
311 kfree(card);
312 return NULL;
313 }
314 return card;
315 }
316
317 static long
318 __qeth_check_irb_error(struct ccw_device *cdev, unsigned long intparm,
319 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 if (intparm == QETH_RCD_PARM) {
335 struct qeth_card *card = CARD_FROM_CDEV(cdev);
336
337 if (card && (card->data.ccwdev == cdev)) {
338 card->data.state = CH_STATE_DOWN;
339 wake_up(&card->wait_q);
340 }
341 }
342 break;
343 default:
344 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
345 cdev->dev.bus_id);
346 QETH_DBF_TEXT(trace, 2, "ckirberr");
347 QETH_DBF_TEXT(trace, 2, " rc???");
348 }
349 return PTR_ERR(irb);
350 }
351
352 static int
353 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
354 {
355 int dstat,cstat;
356 char *sense;
357
358 sense = (char *) irb->ecw;
359 cstat = irb->scsw.cstat;
360 dstat = irb->scsw.dstat;
361
362 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
363 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
364 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
365 QETH_DBF_TEXT(trace,2, "CGENCHK");
366 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
367 cdev->dev.bus_id, dstat, cstat);
368 HEXDUMP16(WARN, "irb: ", irb);
369 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
370 return 1;
371 }
372
373 if (dstat & DEV_STAT_UNIT_CHECK) {
374 if (sense[SENSE_RESETTING_EVENT_BYTE] &
375 SENSE_RESETTING_EVENT_FLAG) {
376 QETH_DBF_TEXT(trace,2,"REVIND");
377 return 1;
378 }
379 if (sense[SENSE_COMMAND_REJECT_BYTE] &
380 SENSE_COMMAND_REJECT_FLAG) {
381 QETH_DBF_TEXT(trace,2,"CMDREJi");
382 return 0;
383 }
384 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
385 QETH_DBF_TEXT(trace,2,"AFFE");
386 return 1;
387 }
388 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
389 QETH_DBF_TEXT(trace,2,"ZEROSEN");
390 return 0;
391 }
392 QETH_DBF_TEXT(trace,2,"DGENCHK");
393 return 1;
394 }
395 return 0;
396 }
397 static int qeth_issue_next_read(struct qeth_card *);
398
399 /**
400 * interrupt handler
401 */
402 static void
403 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
404 {
405 int rc;
406 int cstat,dstat;
407 struct qeth_cmd_buffer *buffer;
408 struct qeth_channel *channel;
409 struct qeth_card *card;
410
411 QETH_DBF_TEXT(trace,5,"irq");
412
413 if (__qeth_check_irb_error(cdev, intparm, irb))
414 return;
415 cstat = irb->scsw.cstat;
416 dstat = irb->scsw.dstat;
417
418 card = CARD_FROM_CDEV(cdev);
419 if (!card)
420 return;
421
422 if (card->read.ccwdev == cdev){
423 channel = &card->read;
424 QETH_DBF_TEXT(trace,5,"read");
425 } else if (card->write.ccwdev == cdev) {
426 channel = &card->write;
427 QETH_DBF_TEXT(trace,5,"write");
428 } else {
429 channel = &card->data;
430 QETH_DBF_TEXT(trace,5,"data");
431 }
432 atomic_set(&channel->irq_pending, 0);
433
434 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
435 channel->state = CH_STATE_STOPPED;
436
437 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
438 channel->state = CH_STATE_HALTED;
439
440 /*let's wake up immediately on data channel*/
441 if ((channel == &card->data) && (intparm != 0) &&
442 (intparm != QETH_RCD_PARM))
443 goto out;
444
445 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
446 QETH_DBF_TEXT(trace, 6, "clrchpar");
447 /* we don't have to handle this further */
448 intparm = 0;
449 }
450 if (intparm == QETH_HALT_CHANNEL_PARM) {
451 QETH_DBF_TEXT(trace, 6, "hltchpar");
452 /* we don't have to handle this further */
453 intparm = 0;
454 }
455 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
456 (dstat & DEV_STAT_UNIT_CHECK) ||
457 (cstat)) {
458 if (irb->esw.esw0.erw.cons) {
459 /* TODO: we should make this s390dbf */
460 PRINT_WARN("sense data available on channel %s.\n",
461 CHANNEL_ID(channel));
462 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
463 HEXDUMP16(WARN,"irb: ",irb);
464 HEXDUMP16(WARN,"sense data: ",irb->ecw);
465 }
466 if (intparm == QETH_RCD_PARM) {
467 channel->state = CH_STATE_DOWN;
468 goto out;
469 }
470 rc = qeth_get_problem(cdev,irb);
471 if (rc) {
472 qeth_schedule_recovery(card);
473 goto out;
474 }
475 }
476
477 if (intparm == QETH_RCD_PARM) {
478 channel->state = CH_STATE_RCD_DONE;
479 goto out;
480 }
481 if (intparm) {
482 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
483 buffer->state = BUF_STATE_PROCESSED;
484 }
485 if (channel == &card->data)
486 return;
487
488 if (channel == &card->read &&
489 channel->state == CH_STATE_UP)
490 qeth_issue_next_read(card);
491
492 qeth_irq_tasklet((unsigned long)channel);
493 return;
494 out:
495 wake_up(&card->wait_q);
496 }
497
498 /**
499 * tasklet function scheduled from irq handler
500 */
501 static void
502 qeth_irq_tasklet(unsigned long data)
503 {
504 struct qeth_card *card;
505 struct qeth_channel *channel;
506 struct qeth_cmd_buffer *iob;
507 __u8 index;
508
509 QETH_DBF_TEXT(trace,5,"irqtlet");
510 channel = (struct qeth_channel *) data;
511 iob = channel->iob;
512 index = channel->buf_no;
513 card = CARD_FROM_CDEV(channel->ccwdev);
514 while (iob[index].state == BUF_STATE_PROCESSED) {
515 if (iob[index].callback !=NULL) {
516 iob[index].callback(channel,iob + index);
517 }
518 index = (index + 1) % QETH_CMD_BUFFER_NO;
519 }
520 channel->buf_no = index;
521 wake_up(&card->wait_q);
522 }
523
524 static int qeth_stop_card(struct qeth_card *, int);
525
526 static int
527 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
528 {
529 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
530 int rc = 0, rc2 = 0, rc3 = 0;
531 enum qeth_card_states recover_flag;
532
533 QETH_DBF_TEXT(setup, 3, "setoffl");
534 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
535
536 if (card->dev && netif_carrier_ok(card->dev))
537 netif_carrier_off(card->dev);
538 recover_flag = card->state;
539 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
540 PRINT_WARN("Stopping card %s interrupted by user!\n",
541 CARD_BUS_ID(card));
542 return -ERESTARTSYS;
543 }
544 rc = ccw_device_set_offline(CARD_DDEV(card));
545 rc2 = ccw_device_set_offline(CARD_WDEV(card));
546 rc3 = ccw_device_set_offline(CARD_RDEV(card));
547 if (!rc)
548 rc = (rc2) ? rc2 : rc3;
549 if (rc)
550 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
551 if (recover_flag == CARD_STATE_UP)
552 card->state = CARD_STATE_RECOVER;
553 qeth_notify_processes();
554 return 0;
555 }
556
557 static int
558 qeth_set_offline(struct ccwgroup_device *cgdev)
559 {
560 return __qeth_set_offline(cgdev, 0);
561 }
562
563 static int
564 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
565
566
567 static void
568 qeth_remove_device(struct ccwgroup_device *cgdev)
569 {
570 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
571 unsigned long flags;
572
573 QETH_DBF_TEXT(setup, 3, "rmdev");
574 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
575
576 if (!card)
577 return;
578
579 if (qeth_wait_for_threads(card, 0xffffffff))
580 return;
581
582 if (cgdev->state == CCWGROUP_ONLINE){
583 card->use_hard_stop = 1;
584 qeth_set_offline(cgdev);
585 }
586 /* remove form our internal list */
587 write_lock_irqsave(&qeth_card_list.rwlock, flags);
588 list_del(&card->list);
589 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
590 if (card->dev)
591 unregister_netdev(card->dev);
592 qeth_remove_device_attributes(&cgdev->dev);
593 qeth_free_card(card);
594 cgdev->dev.driver_data = NULL;
595 put_device(&cgdev->dev);
596 }
597
598 static int
599 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
600 static int
601 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
602
603 /**
604 * Add/remove address to/from card's ip list, i.e. try to add or remove
605 * reference to/from an IP address that is already registered on the card.
606 * Returns:
607 * 0 address was on card and its reference count has been adjusted,
608 * but is still > 0, so nothing has to be done
609 * also returns 0 if card was not on card and the todo was to delete
610 * the address -> there is also nothing to be done
611 * 1 address was not on card and the todo is to add it to the card's ip
612 * list
613 * -1 address was on card and its reference count has been decremented
614 * to <= 0 by the todo -> address must be removed from card
615 */
616 static int
617 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
618 struct qeth_ipaddr **__addr)
619 {
620 struct qeth_ipaddr *addr;
621 int found = 0;
622
623 list_for_each_entry(addr, &card->ip_list, entry) {
624 if (card->options.layer2) {
625 if ((addr->type == todo->type) &&
626 (memcmp(&addr->mac, &todo->mac,
627 OSA_ADDR_LEN) == 0)) {
628 found = 1;
629 break;
630 }
631 continue;
632 }
633 if ((addr->proto == QETH_PROT_IPV4) &&
634 (todo->proto == QETH_PROT_IPV4) &&
635 (addr->type == todo->type) &&
636 (addr->u.a4.addr == todo->u.a4.addr) &&
637 (addr->u.a4.mask == todo->u.a4.mask)) {
638 found = 1;
639 break;
640 }
641 if ((addr->proto == QETH_PROT_IPV6) &&
642 (todo->proto == QETH_PROT_IPV6) &&
643 (addr->type == todo->type) &&
644 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
645 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
646 sizeof(struct in6_addr)) == 0)) {
647 found = 1;
648 break;
649 }
650 }
651 if (found) {
652 addr->users += todo->users;
653 if (addr->users <= 0){
654 *__addr = addr;
655 return -1;
656 } else {
657 /* for VIPA and RXIP limit refcount to 1 */
658 if (addr->type != QETH_IP_TYPE_NORMAL)
659 addr->users = 1;
660 return 0;
661 }
662 }
663 if (todo->users > 0) {
664 /* for VIPA and RXIP limit refcount to 1 */
665 if (todo->type != QETH_IP_TYPE_NORMAL)
666 todo->users = 1;
667 return 1;
668 } else
669 return 0;
670 }
671
672 static int
673 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
674 int same_type)
675 {
676 struct qeth_ipaddr *tmp;
677
678 list_for_each_entry(tmp, list, entry) {
679 if ((tmp->proto == QETH_PROT_IPV4) &&
680 (addr->proto == QETH_PROT_IPV4) &&
681 ((same_type && (tmp->type == addr->type)) ||
682 (!same_type && (tmp->type != addr->type)) ) &&
683 (tmp->u.a4.addr == addr->u.a4.addr) ){
684 return 1;
685 }
686 if ((tmp->proto == QETH_PROT_IPV6) &&
687 (addr->proto == QETH_PROT_IPV6) &&
688 ((same_type && (tmp->type == addr->type)) ||
689 (!same_type && (tmp->type != addr->type)) ) &&
690 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
691 sizeof(struct in6_addr)) == 0) ) {
692 return 1;
693 }
694 }
695 return 0;
696 }
697
698 /*
699 * Add IP to be added to todo list. If there is already an "add todo"
700 * in this list we just incremenent the reference count.
701 * Returns 0 if we just incremented reference count.
702 */
703 static int
704 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
705 {
706 struct qeth_ipaddr *tmp, *t;
707 int found = 0;
708
709 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
710 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
711 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
712 return 0;
713 if (card->options.layer2) {
714 if ((tmp->type == addr->type) &&
715 (tmp->is_multicast == addr->is_multicast) &&
716 (memcmp(&tmp->mac, &addr->mac,
717 OSA_ADDR_LEN) == 0)) {
718 found = 1;
719 break;
720 }
721 continue;
722 }
723 if ((tmp->proto == QETH_PROT_IPV4) &&
724 (addr->proto == QETH_PROT_IPV4) &&
725 (tmp->type == addr->type) &&
726 (tmp->is_multicast == addr->is_multicast) &&
727 (tmp->u.a4.addr == addr->u.a4.addr) &&
728 (tmp->u.a4.mask == addr->u.a4.mask)) {
729 found = 1;
730 break;
731 }
732 if ((tmp->proto == QETH_PROT_IPV6) &&
733 (addr->proto == QETH_PROT_IPV6) &&
734 (tmp->type == addr->type) &&
735 (tmp->is_multicast == addr->is_multicast) &&
736 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
737 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
738 sizeof(struct in6_addr)) == 0)) {
739 found = 1;
740 break;
741 }
742 }
743 if (found){
744 if (addr->users != 0)
745 tmp->users += addr->users;
746 else
747 tmp->users += add? 1:-1;
748 if (tmp->users == 0) {
749 list_del(&tmp->entry);
750 kfree(tmp);
751 }
752 return 0;
753 } else {
754 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
755 list_add(&addr->entry, card->ip_tbd_list);
756 else {
757 if (addr->users == 0)
758 addr->users += add? 1:-1;
759 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
760 qeth_is_addr_covered_by_ipato(card, addr)){
761 QETH_DBF_TEXT(trace, 2, "tkovaddr");
762 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
763 }
764 list_add_tail(&addr->entry, card->ip_tbd_list);
765 }
766 return 1;
767 }
768 }
769
770 /**
771 * Remove IP address from list
772 */
773 static int
774 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
775 {
776 unsigned long flags;
777 int rc = 0;
778
779 QETH_DBF_TEXT(trace, 4, "delip");
780
781 if (card->options.layer2)
782 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
783 else if (addr->proto == QETH_PROT_IPV4)
784 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
785 else {
786 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
787 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
788 }
789 spin_lock_irqsave(&card->ip_lock, flags);
790 rc = __qeth_insert_ip_todo(card, addr, 0);
791 spin_unlock_irqrestore(&card->ip_lock, flags);
792 return rc;
793 }
794
795 static int
796 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
797 {
798 unsigned long flags;
799 int rc = 0;
800
801 QETH_DBF_TEXT(trace, 4, "addip");
802 if (card->options.layer2)
803 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
804 else if (addr->proto == QETH_PROT_IPV4)
805 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
806 else {
807 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
808 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
809 }
810 spin_lock_irqsave(&card->ip_lock, flags);
811 rc = __qeth_insert_ip_todo(card, addr, 1);
812 spin_unlock_irqrestore(&card->ip_lock, flags);
813 return rc;
814 }
815
816 static void
817 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
818 {
819 struct qeth_ipaddr *addr, *tmp;
820 int rc;
821 again:
822 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
823 if (addr->is_multicast) {
824 spin_unlock_irqrestore(&card->ip_lock, *flags);
825 rc = qeth_deregister_addr_entry(card, addr);
826 spin_lock_irqsave(&card->ip_lock, *flags);
827 if (!rc) {
828 list_del(&addr->entry);
829 kfree(addr);
830 goto again;
831 }
832 }
833 }
834 }
835
836 static void
837 qeth_set_ip_addr_list(struct qeth_card *card)
838 {
839 struct list_head *tbd_list;
840 struct qeth_ipaddr *todo, *addr;
841 unsigned long flags;
842 int rc;
843
844 QETH_DBF_TEXT(trace, 2, "sdiplist");
845 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
846
847 spin_lock_irqsave(&card->ip_lock, flags);
848 tbd_list = card->ip_tbd_list;
849 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
850 if (!card->ip_tbd_list) {
851 QETH_DBF_TEXT(trace, 0, "silnomem");
852 card->ip_tbd_list = tbd_list;
853 spin_unlock_irqrestore(&card->ip_lock, flags);
854 return;
855 } else
856 INIT_LIST_HEAD(card->ip_tbd_list);
857
858 while (!list_empty(tbd_list)){
859 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
860 list_del(&todo->entry);
861 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
862 __qeth_delete_all_mc(card, &flags);
863 kfree(todo);
864 continue;
865 }
866 rc = __qeth_ref_ip_on_card(card, todo, &addr);
867 if (rc == 0) {
868 /* nothing to be done; only adjusted refcount */
869 kfree(todo);
870 } else if (rc == 1) {
871 /* new entry to be added to on-card list */
872 spin_unlock_irqrestore(&card->ip_lock, flags);
873 rc = qeth_register_addr_entry(card, todo);
874 spin_lock_irqsave(&card->ip_lock, flags);
875 if (!rc)
876 list_add_tail(&todo->entry, &card->ip_list);
877 else
878 kfree(todo);
879 } else if (rc == -1) {
880 /* on-card entry to be removed */
881 list_del_init(&addr->entry);
882 spin_unlock_irqrestore(&card->ip_lock, flags);
883 rc = qeth_deregister_addr_entry(card, addr);
884 spin_lock_irqsave(&card->ip_lock, flags);
885 if (!rc)
886 kfree(addr);
887 else
888 list_add_tail(&addr->entry, &card->ip_list);
889 kfree(todo);
890 }
891 }
892 spin_unlock_irqrestore(&card->ip_lock, flags);
893 kfree(tbd_list);
894 }
895
896 static void qeth_delete_mc_addresses(struct qeth_card *);
897 static void qeth_add_multicast_ipv4(struct qeth_card *);
898 static void qeth_layer2_add_multicast(struct qeth_card *);
899 #ifdef CONFIG_QETH_IPV6
900 static void qeth_add_multicast_ipv6(struct qeth_card *);
901 #endif
902
903 static int
904 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
905 {
906 unsigned long flags;
907
908 spin_lock_irqsave(&card->thread_mask_lock, flags);
909 if ( !(card->thread_allowed_mask & thread) ||
910 (card->thread_start_mask & thread) ) {
911 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
912 return -EPERM;
913 }
914 card->thread_start_mask |= thread;
915 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
916 return 0;
917 }
918
919 static void
920 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
921 {
922 unsigned long flags;
923
924 spin_lock_irqsave(&card->thread_mask_lock, flags);
925 card->thread_start_mask &= ~thread;
926 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
927 wake_up(&card->wait_q);
928 }
929
930 static void
931 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
932 {
933 unsigned long flags;
934
935 spin_lock_irqsave(&card->thread_mask_lock, flags);
936 card->thread_running_mask &= ~thread;
937 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
938 wake_up(&card->wait_q);
939 }
940
941 static int
942 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
943 {
944 unsigned long flags;
945 int rc = 0;
946
947 spin_lock_irqsave(&card->thread_mask_lock, flags);
948 if (card->thread_start_mask & thread){
949 if ((card->thread_allowed_mask & thread) &&
950 !(card->thread_running_mask & thread)){
951 rc = 1;
952 card->thread_start_mask &= ~thread;
953 card->thread_running_mask |= thread;
954 } else
955 rc = -EPERM;
956 }
957 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
958 return rc;
959 }
960
961 static int
962 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
963 {
964 int rc = 0;
965
966 wait_event(card->wait_q,
967 (rc = __qeth_do_run_thread(card, thread)) >= 0);
968 return rc;
969 }
970
971 static int
972 qeth_recover(void *ptr)
973 {
974 struct qeth_card *card;
975 int rc = 0;
976
977 card = (struct qeth_card *) ptr;
978 daemonize("qeth_recover");
979 QETH_DBF_TEXT(trace,2,"recover1");
980 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
981 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
982 return 0;
983 QETH_DBF_TEXT(trace,2,"recover2");
984 PRINT_WARN("Recovery of device %s started ...\n",
985 CARD_BUS_ID(card));
986 card->use_hard_stop = 1;
987 __qeth_set_offline(card->gdev,1);
988 rc = __qeth_set_online(card->gdev,1);
989 if (!rc)
990 PRINT_INFO("Device %s successfully recovered!\n",
991 CARD_BUS_ID(card));
992 else
993 PRINT_INFO("Device %s could not be recovered!\n",
994 CARD_BUS_ID(card));
995 /* don't run another scheduled recovery */
996 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
997 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
998 return 0;
999 }
1000
1001 void
1002 qeth_schedule_recovery(struct qeth_card *card)
1003 {
1004 QETH_DBF_TEXT(trace,2,"startrec");
1005 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1006 schedule_work(&card->kernel_thread_starter);
1007 }
1008
1009 static int
1010 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1011 {
1012 unsigned long flags;
1013 int rc = 0;
1014
1015 spin_lock_irqsave(&card->thread_mask_lock, flags);
1016 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1017 (u8) card->thread_start_mask,
1018 (u8) card->thread_allowed_mask,
1019 (u8) card->thread_running_mask);
1020 rc = (card->thread_start_mask & thread);
1021 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1022 return rc;
1023 }
1024
1025 static void
1026 qeth_start_kernel_thread(struct work_struct *work)
1027 {
1028 struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1029 QETH_DBF_TEXT(trace , 2, "strthrd");
1030
1031 if (card->read.state != CH_STATE_UP &&
1032 card->write.state != CH_STATE_UP)
1033 return;
1034 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1035 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1036 }
1037
1038
1039 static void
1040 qeth_set_intial_options(struct qeth_card *card)
1041 {
1042 card->options.route4.type = NO_ROUTER;
1043 #ifdef CONFIG_QETH_IPV6
1044 card->options.route6.type = NO_ROUTER;
1045 #endif /* QETH_IPV6 */
1046 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1047 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1048 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1049 card->options.fake_broadcast = 0;
1050 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1051 card->options.fake_ll = 0;
1052 if (card->info.type == QETH_CARD_TYPE_OSN)
1053 card->options.layer2 = 1;
1054 else
1055 card->options.layer2 = 0;
1056 card->options.performance_stats = 0;
1057 }
1058
1059 /**
1060 * initialize channels ,card and all state machines
1061 */
1062 static int
1063 qeth_setup_card(struct qeth_card *card)
1064 {
1065
1066 QETH_DBF_TEXT(setup, 2, "setupcrd");
1067 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1068
1069 card->read.state = CH_STATE_DOWN;
1070 card->write.state = CH_STATE_DOWN;
1071 card->data.state = CH_STATE_DOWN;
1072 card->state = CARD_STATE_DOWN;
1073 card->lan_online = 0;
1074 card->use_hard_stop = 0;
1075 card->dev = NULL;
1076 #ifdef CONFIG_QETH_VLAN
1077 spin_lock_init(&card->vlanlock);
1078 card->vlangrp = NULL;
1079 #endif
1080 spin_lock_init(&card->lock);
1081 spin_lock_init(&card->ip_lock);
1082 spin_lock_init(&card->thread_mask_lock);
1083 card->thread_start_mask = 0;
1084 card->thread_allowed_mask = 0;
1085 card->thread_running_mask = 0;
1086 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1087 INIT_LIST_HEAD(&card->ip_list);
1088 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1089 if (!card->ip_tbd_list) {
1090 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1091 return -ENOMEM;
1092 }
1093 INIT_LIST_HEAD(card->ip_tbd_list);
1094 INIT_LIST_HEAD(&card->cmd_waiter_list);
1095 init_waitqueue_head(&card->wait_q);
1096 /* intial options */
1097 qeth_set_intial_options(card);
1098 /* IP address takeover */
1099 INIT_LIST_HEAD(&card->ipato.entries);
1100 card->ipato.enabled = 0;
1101 card->ipato.invert4 = 0;
1102 card->ipato.invert6 = 0;
1103 /* init QDIO stuff */
1104 qeth_init_qdio_info(card);
1105 return 0;
1106 }
1107
1108 static int
1109 is_1920_device (struct qeth_card *card)
1110 {
1111 int single_queue = 0;
1112 struct ccw_device *ccwdev;
1113 struct channelPath_dsc {
1114 u8 flags;
1115 u8 lsn;
1116 u8 desc;
1117 u8 chpid;
1118 u8 swla;
1119 u8 zeroes;
1120 u8 chla;
1121 u8 chpp;
1122 } *chp_dsc;
1123
1124 QETH_DBF_TEXT(setup, 2, "chk_1920");
1125
1126 ccwdev = card->data.ccwdev;
1127 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1128 if (chp_dsc != NULL) {
1129 /* CHPP field bit 6 == 1 -> single queue */
1130 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1131 kfree(chp_dsc);
1132 }
1133 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1134 return single_queue;
1135 }
1136
1137 static int
1138 qeth_determine_card_type(struct qeth_card *card)
1139 {
1140 int i = 0;
1141
1142 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1143
1144 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1145 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1146 while (known_devices[i][4]) {
1147 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1148 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1149 card->info.type = known_devices[i][4];
1150 card->qdio.no_out_queues = known_devices[i][8];
1151 card->info.is_multicast_different = known_devices[i][9];
1152 if (is_1920_device(card)) {
1153 PRINT_INFO("Priority Queueing not able "
1154 "due to hardware limitations!\n");
1155 card->qdio.no_out_queues = 1;
1156 card->qdio.default_out_queue = 0;
1157 }
1158 return 0;
1159 }
1160 i++;
1161 }
1162 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1163 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1164 return -ENOENT;
1165 }
1166
1167 static int
1168 qeth_probe_device(struct ccwgroup_device *gdev)
1169 {
1170 struct qeth_card *card;
1171 struct device *dev;
1172 unsigned long flags;
1173 int rc;
1174
1175 QETH_DBF_TEXT(setup, 2, "probedev");
1176
1177 dev = &gdev->dev;
1178 if (!get_device(dev))
1179 return -ENODEV;
1180
1181 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1182
1183 card = qeth_alloc_card();
1184 if (!card) {
1185 put_device(dev);
1186 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1187 return -ENOMEM;
1188 }
1189 card->read.ccwdev = gdev->cdev[0];
1190 card->write.ccwdev = gdev->cdev[1];
1191 card->data.ccwdev = gdev->cdev[2];
1192 gdev->dev.driver_data = card;
1193 card->gdev = gdev;
1194 gdev->cdev[0]->handler = qeth_irq;
1195 gdev->cdev[1]->handler = qeth_irq;
1196 gdev->cdev[2]->handler = qeth_irq;
1197
1198 if ((rc = qeth_determine_card_type(card))){
1199 PRINT_WARN("%s: not a valid card type\n", __func__);
1200 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1201 put_device(dev);
1202 qeth_free_card(card);
1203 return rc;
1204 }
1205 if ((rc = qeth_setup_card(card))){
1206 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1207 put_device(dev);
1208 qeth_free_card(card);
1209 return rc;
1210 }
1211 rc = qeth_create_device_attributes(dev);
1212 if (rc) {
1213 put_device(dev);
1214 qeth_free_card(card);
1215 return rc;
1216 }
1217 /* insert into our internal list */
1218 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1219 list_add_tail(&card->list, &qeth_card_list.list);
1220 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1221 return rc;
1222 }
1223
1224
1225 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1226 int *length)
1227 {
1228 struct ciw *ciw;
1229 char *rcd_buf;
1230 int ret;
1231 struct qeth_channel *channel = &card->data;
1232 unsigned long flags;
1233
1234 /*
1235 * scan for RCD command in extended SenseID data
1236 */
1237 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1238 if (!ciw || ciw->cmd == 0)
1239 return -EOPNOTSUPP;
1240 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1241 if (!rcd_buf)
1242 return -ENOMEM;
1243
1244 channel->ccw.cmd_code = ciw->cmd;
1245 channel->ccw.cda = (__u32) __pa (rcd_buf);
1246 channel->ccw.count = ciw->count;
1247 channel->ccw.flags = CCW_FLAG_SLI;
1248 channel->state = CH_STATE_RCD;
1249 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1250 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1251 QETH_RCD_PARM, LPM_ANYPATH, 0,
1252 QETH_RCD_TIMEOUT);
1253 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1254 if (!ret)
1255 wait_event(card->wait_q,
1256 (channel->state == CH_STATE_RCD_DONE ||
1257 channel->state == CH_STATE_DOWN));
1258 if (channel->state == CH_STATE_DOWN)
1259 ret = -EIO;
1260 else
1261 channel->state = CH_STATE_DOWN;
1262 if (ret) {
1263 kfree(rcd_buf);
1264 *buffer = NULL;
1265 *length = 0;
1266 } else {
1267 *length = ciw->count;
1268 *buffer = rcd_buf;
1269 }
1270 return ret;
1271 }
1272
1273 static int
1274 qeth_get_unitaddr(struct qeth_card *card)
1275 {
1276 int length;
1277 char *prcd;
1278 int rc;
1279
1280 QETH_DBF_TEXT(setup, 2, "getunit");
1281 rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1282 if (rc) {
1283 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1284 CARD_DDEV_ID(card), rc);
1285 return rc;
1286 }
1287 card->info.chpid = prcd[30];
1288 card->info.unit_addr2 = prcd[31];
1289 card->info.cula = prcd[63];
1290 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1291 (prcd[0x11] == _ascebc['M']));
1292 kfree(prcd);
1293 return 0;
1294 }
1295
1296 static void
1297 qeth_init_tokens(struct qeth_card *card)
1298 {
1299 card->token.issuer_rm_w = 0x00010103UL;
1300 card->token.cm_filter_w = 0x00010108UL;
1301 card->token.cm_connection_w = 0x0001010aUL;
1302 card->token.ulp_filter_w = 0x0001010bUL;
1303 card->token.ulp_connection_w = 0x0001010dUL;
1304 }
1305
1306 static inline __u16
1307 raw_devno_from_bus_id(char *id)
1308 {
1309 id += (strlen(id) - 4);
1310 return (__u16) simple_strtoul(id, &id, 16);
1311 }
1312 /**
1313 * setup channel
1314 */
1315 static void
1316 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1317 {
1318 struct qeth_card *card;
1319
1320 QETH_DBF_TEXT(trace, 4, "setupccw");
1321 card = CARD_FROM_CDEV(channel->ccwdev);
1322 if (channel == &card->read)
1323 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1324 else
1325 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1326 channel->ccw.count = len;
1327 channel->ccw.cda = (__u32) __pa(iob);
1328 }
1329
1330 /**
1331 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1332 */
1333 static struct qeth_cmd_buffer *
1334 __qeth_get_buffer(struct qeth_channel *channel)
1335 {
1336 __u8 index;
1337
1338 QETH_DBF_TEXT(trace, 6, "getbuff");
1339 index = channel->io_buf_no;
1340 do {
1341 if (channel->iob[index].state == BUF_STATE_FREE) {
1342 channel->iob[index].state = BUF_STATE_LOCKED;
1343 channel->io_buf_no = (channel->io_buf_no + 1) %
1344 QETH_CMD_BUFFER_NO;
1345 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1346 return channel->iob + index;
1347 }
1348 index = (index + 1) % QETH_CMD_BUFFER_NO;
1349 } while(index != channel->io_buf_no);
1350
1351 return NULL;
1352 }
1353
1354 /**
1355 * release command buffer
1356 */
1357 static void
1358 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1359 {
1360 unsigned long flags;
1361
1362 QETH_DBF_TEXT(trace, 6, "relbuff");
1363 spin_lock_irqsave(&channel->iob_lock, flags);
1364 memset(iob->data, 0, QETH_BUFSIZE);
1365 iob->state = BUF_STATE_FREE;
1366 iob->callback = qeth_send_control_data_cb;
1367 iob->rc = 0;
1368 spin_unlock_irqrestore(&channel->iob_lock, flags);
1369 }
1370
1371 static struct qeth_cmd_buffer *
1372 qeth_get_buffer(struct qeth_channel *channel)
1373 {
1374 struct qeth_cmd_buffer *buffer = NULL;
1375 unsigned long flags;
1376
1377 spin_lock_irqsave(&channel->iob_lock, flags);
1378 buffer = __qeth_get_buffer(channel);
1379 spin_unlock_irqrestore(&channel->iob_lock, flags);
1380 return buffer;
1381 }
1382
1383 static struct qeth_cmd_buffer *
1384 qeth_wait_for_buffer(struct qeth_channel *channel)
1385 {
1386 struct qeth_cmd_buffer *buffer;
1387 wait_event(channel->wait_q,
1388 ((buffer = qeth_get_buffer(channel)) != NULL));
1389 return buffer;
1390 }
1391
1392 static void
1393 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1394 {
1395 int cnt;
1396
1397 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1398 qeth_release_buffer(channel,&channel->iob[cnt]);
1399 channel->buf_no = 0;
1400 channel->io_buf_no = 0;
1401 }
1402
1403 /**
1404 * start IDX for read and write channel
1405 */
1406 static int
1407 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1408 void (*idx_reply_cb)(struct qeth_channel *,
1409 struct qeth_cmd_buffer *))
1410 {
1411 struct qeth_cmd_buffer *iob;
1412 unsigned long flags;
1413 int rc;
1414 struct qeth_card *card;
1415
1416 QETH_DBF_TEXT(setup, 2, "idxanswr");
1417 card = CARD_FROM_CDEV(channel->ccwdev);
1418 iob = qeth_get_buffer(channel);
1419 iob->callback = idx_reply_cb;
1420 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1421 channel->ccw.count = QETH_BUFSIZE;
1422 channel->ccw.cda = (__u32) __pa(iob->data);
1423
1424 wait_event(card->wait_q,
1425 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1426 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1427 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1428 rc = ccw_device_start(channel->ccwdev,
1429 &channel->ccw,(addr_t) iob, 0, 0);
1430 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1431
1432 if (rc) {
1433 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1434 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1435 atomic_set(&channel->irq_pending, 0);
1436 wake_up(&card->wait_q);
1437 return rc;
1438 }
1439 rc = wait_event_interruptible_timeout(card->wait_q,
1440 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1441 if (rc == -ERESTARTSYS)
1442 return rc;
1443 if (channel->state != CH_STATE_UP){
1444 rc = -ETIME;
1445 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1446 qeth_clear_cmd_buffers(channel);
1447 } else
1448 rc = 0;
1449 return rc;
1450 }
1451
1452 static int
1453 qeth_idx_activate_channel(struct qeth_channel *channel,
1454 void (*idx_reply_cb)(struct qeth_channel *,
1455 struct qeth_cmd_buffer *))
1456 {
1457 struct qeth_card *card;
1458 struct qeth_cmd_buffer *iob;
1459 unsigned long flags;
1460 __u16 temp;
1461 int rc;
1462
1463 card = CARD_FROM_CDEV(channel->ccwdev);
1464
1465 QETH_DBF_TEXT(setup, 2, "idxactch");
1466
1467 iob = qeth_get_buffer(channel);
1468 iob->callback = idx_reply_cb;
1469 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1470 channel->ccw.count = IDX_ACTIVATE_SIZE;
1471 channel->ccw.cda = (__u32) __pa(iob->data);
1472 if (channel == &card->write) {
1473 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1474 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1475 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1476 card->seqno.trans_hdr++;
1477 } else {
1478 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1479 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1480 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1481 }
1482 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1483 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1484 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1485 &card->info.func_level,sizeof(__u16));
1486 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1487 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1488 temp = (card->info.cula << 8) + card->info.unit_addr2;
1489 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1490
1491 wait_event(card->wait_q,
1492 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1493 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1494 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1495 rc = ccw_device_start(channel->ccwdev,
1496 &channel->ccw,(addr_t) iob, 0, 0);
1497 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1498
1499 if (rc) {
1500 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1501 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1502 atomic_set(&channel->irq_pending, 0);
1503 wake_up(&card->wait_q);
1504 return rc;
1505 }
1506 rc = wait_event_interruptible_timeout(card->wait_q,
1507 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1508 if (rc == -ERESTARTSYS)
1509 return rc;
1510 if (channel->state != CH_STATE_ACTIVATING) {
1511 PRINT_WARN("qeth: IDX activate timed out!\n");
1512 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1513 qeth_clear_cmd_buffers(channel);
1514 return -ETIME;
1515 }
1516 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1517 }
1518
1519 static int
1520 qeth_peer_func_level(int level)
1521 {
1522 if ((level & 0xff) == 8)
1523 return (level & 0xff) + 0x400;
1524 if (((level >> 8) & 3) == 1)
1525 return (level & 0xff) + 0x200;
1526 return level;
1527 }
1528
1529 static void
1530 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1531 {
1532 struct qeth_card *card;
1533 __u16 temp;
1534
1535 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1536
1537 if (channel->state == CH_STATE_DOWN) {
1538 channel->state = CH_STATE_ACTIVATING;
1539 goto out;
1540 }
1541 card = CARD_FROM_CDEV(channel->ccwdev);
1542
1543 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1544 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1545 "reply\n", CARD_WDEV_ID(card));
1546 goto out;
1547 }
1548 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1549 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1550 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1551 "function level mismatch "
1552 "(sent: 0x%x, received: 0x%x)\n",
1553 CARD_WDEV_ID(card), card->info.func_level, temp);
1554 goto out;
1555 }
1556 channel->state = CH_STATE_UP;
1557 out:
1558 qeth_release_buffer(channel, iob);
1559 }
1560
1561 static int
1562 qeth_check_idx_response(unsigned char *buffer)
1563 {
1564 if (!buffer)
1565 return 0;
1566
1567 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1568 if ((buffer[2] & 0xc0) == 0xc0) {
1569 PRINT_WARN("received an IDX TERMINATE "
1570 "with cause code 0x%02x%s\n",
1571 buffer[4],
1572 ((buffer[4] == 0x22) ?
1573 " -- try another portname" : ""));
1574 QETH_DBF_TEXT(trace, 2, "ckidxres");
1575 QETH_DBF_TEXT(trace, 2, " idxterm");
1576 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1577 return -EIO;
1578 }
1579 return 0;
1580 }
1581
1582 static void
1583 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1584 {
1585 struct qeth_card *card;
1586 __u16 temp;
1587
1588 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1589 if (channel->state == CH_STATE_DOWN) {
1590 channel->state = CH_STATE_ACTIVATING;
1591 goto out;
1592 }
1593
1594 card = CARD_FROM_CDEV(channel->ccwdev);
1595 if (qeth_check_idx_response(iob->data)) {
1596 goto out;
1597 }
1598 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1599 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1600 "reply\n", CARD_RDEV_ID(card));
1601 goto out;
1602 }
1603
1604 /**
1605 * temporary fix for microcode bug
1606 * to revert it,replace OR by AND
1607 */
1608 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1609 (card->info.type == QETH_CARD_TYPE_OSAE) )
1610 card->info.portname_required = 1;
1611
1612 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1613 if (temp != qeth_peer_func_level(card->info.func_level)) {
1614 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1615 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1616 CARD_RDEV_ID(card), card->info.func_level, temp);
1617 goto out;
1618 }
1619 memcpy(&card->token.issuer_rm_r,
1620 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1621 QETH_MPC_TOKEN_LENGTH);
1622 memcpy(&card->info.mcl_level[0],
1623 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1624 channel->state = CH_STATE_UP;
1625 out:
1626 qeth_release_buffer(channel,iob);
1627 }
1628
1629 static int
1630 qeth_issue_next_read(struct qeth_card *card)
1631 {
1632 int rc;
1633 struct qeth_cmd_buffer *iob;
1634
1635 QETH_DBF_TEXT(trace,5,"issnxrd");
1636 if (card->read.state != CH_STATE_UP)
1637 return -EIO;
1638 iob = qeth_get_buffer(&card->read);
1639 if (!iob) {
1640 PRINT_WARN("issue_next_read failed: no iob available!\n");
1641 return -ENOMEM;
1642 }
1643 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1644 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1645 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1646 (addr_t) iob, 0, 0);
1647 if (rc) {
1648 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1649 atomic_set(&card->read.irq_pending, 0);
1650 qeth_schedule_recovery(card);
1651 wake_up(&card->wait_q);
1652 }
1653 return rc;
1654 }
1655
1656 static struct qeth_reply *
1657 qeth_alloc_reply(struct qeth_card *card)
1658 {
1659 struct qeth_reply *reply;
1660
1661 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1662 if (reply){
1663 atomic_set(&reply->refcnt, 1);
1664 atomic_set(&reply->received, 0);
1665 reply->card = card;
1666 };
1667 return reply;
1668 }
1669
1670 static void
1671 qeth_get_reply(struct qeth_reply *reply)
1672 {
1673 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1674 atomic_inc(&reply->refcnt);
1675 }
1676
1677 static void
1678 qeth_put_reply(struct qeth_reply *reply)
1679 {
1680 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1681 if (atomic_dec_and_test(&reply->refcnt))
1682 kfree(reply);
1683 }
1684
1685 static struct qeth_ipa_cmd *
1686 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1687 {
1688 struct qeth_ipa_cmd *cmd = NULL;
1689
1690 QETH_DBF_TEXT(trace,5,"chkipad");
1691 if (IS_IPA(iob->data)){
1692 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1693 if (IS_IPA_REPLY(cmd))
1694 return cmd;
1695 else {
1696 switch (cmd->hdr.command) {
1697 case IPA_CMD_STOPLAN:
1698 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1699 "there is a network problem or "
1700 "someone pulled the cable or "
1701 "disabled the port.\n",
1702 QETH_CARD_IFNAME(card),
1703 card->info.chpid);
1704 card->lan_online = 0;
1705 if (card->dev && netif_carrier_ok(card->dev))
1706 netif_carrier_off(card->dev);
1707 return NULL;
1708 case IPA_CMD_STARTLAN:
1709 PRINT_INFO("Link reestablished on %s "
1710 "(CHPID 0x%X). Scheduling "
1711 "IP address reset.\n",
1712 QETH_CARD_IFNAME(card),
1713 card->info.chpid);
1714 netif_carrier_on(card->dev);
1715 qeth_schedule_recovery(card);
1716 return NULL;
1717 case IPA_CMD_MODCCID:
1718 return cmd;
1719 case IPA_CMD_REGISTER_LOCAL_ADDR:
1720 QETH_DBF_TEXT(trace,3, "irla");
1721 break;
1722 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1723 QETH_DBF_TEXT(trace,3, "urla");
1724 break;
1725 default:
1726 PRINT_WARN("Received data is IPA "
1727 "but not a reply!\n");
1728 break;
1729 }
1730 }
1731 }
1732 return cmd;
1733 }
1734
1735 /**
1736 * wake all waiting ipa commands
1737 */
1738 static void
1739 qeth_clear_ipacmd_list(struct qeth_card *card)
1740 {
1741 struct qeth_reply *reply, *r;
1742 unsigned long flags;
1743
1744 QETH_DBF_TEXT(trace, 4, "clipalst");
1745
1746 spin_lock_irqsave(&card->lock, flags);
1747 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1748 qeth_get_reply(reply);
1749 reply->rc = -EIO;
1750 atomic_inc(&reply->received);
1751 list_del_init(&reply->list);
1752 wake_up(&reply->wait_q);
1753 qeth_put_reply(reply);
1754 }
1755 spin_unlock_irqrestore(&card->lock, flags);
1756 }
1757
1758 static void
1759 qeth_send_control_data_cb(struct qeth_channel *channel,
1760 struct qeth_cmd_buffer *iob)
1761 {
1762 struct qeth_card *card;
1763 struct qeth_reply *reply, *r;
1764 struct qeth_ipa_cmd *cmd;
1765 unsigned long flags;
1766 int keep_reply;
1767
1768 QETH_DBF_TEXT(trace,4,"sndctlcb");
1769
1770 card = CARD_FROM_CDEV(channel->ccwdev);
1771 if (qeth_check_idx_response(iob->data)) {
1772 qeth_clear_ipacmd_list(card);
1773 qeth_schedule_recovery(card);
1774 goto out;
1775 }
1776
1777 cmd = qeth_check_ipa_data(card, iob);
1778 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1779 goto out;
1780 /*in case of OSN : check if cmd is set */
1781 if (card->info.type == QETH_CARD_TYPE_OSN &&
1782 cmd &&
1783 cmd->hdr.command != IPA_CMD_STARTLAN &&
1784 card->osn_info.assist_cb != NULL) {
1785 card->osn_info.assist_cb(card->dev, cmd);
1786 goto out;
1787 }
1788
1789 spin_lock_irqsave(&card->lock, flags);
1790 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1791 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1792 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1793 qeth_get_reply(reply);
1794 list_del_init(&reply->list);
1795 spin_unlock_irqrestore(&card->lock, flags);
1796 keep_reply = 0;
1797 if (reply->callback != NULL) {
1798 if (cmd) {
1799 reply->offset = (__u16)((char*)cmd -
1800 (char *)iob->data);
1801 keep_reply = reply->callback(card,
1802 reply,
1803 (unsigned long)cmd);
1804 } else
1805 keep_reply = reply->callback(card,
1806 reply,
1807 (unsigned long)iob);
1808 }
1809 if (cmd)
1810 reply->rc = (u16) cmd->hdr.return_code;
1811 else if (iob->rc)
1812 reply->rc = iob->rc;
1813 if (keep_reply) {
1814 spin_lock_irqsave(&card->lock, flags);
1815 list_add_tail(&reply->list,
1816 &card->cmd_waiter_list);
1817 spin_unlock_irqrestore(&card->lock, flags);
1818 } else {
1819 atomic_inc(&reply->received);
1820 wake_up(&reply->wait_q);
1821 }
1822 qeth_put_reply(reply);
1823 goto out;
1824 }
1825 }
1826 spin_unlock_irqrestore(&card->lock, flags);
1827 out:
1828 memcpy(&card->seqno.pdu_hdr_ack,
1829 QETH_PDU_HEADER_SEQ_NO(iob->data),
1830 QETH_SEQ_NO_LENGTH);
1831 qeth_release_buffer(channel,iob);
1832 }
1833
1834 static void
1835 qeth_prepare_control_data(struct qeth_card *card, int len,
1836 struct qeth_cmd_buffer *iob)
1837 {
1838 qeth_setup_ccw(&card->write,iob->data,len);
1839 iob->callback = qeth_release_buffer;
1840
1841 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1842 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1843 card->seqno.trans_hdr++;
1844 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1845 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1846 card->seqno.pdu_hdr++;
1847 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1848 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1849 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1850 }
1851
1852 static int
1853 qeth_send_control_data(struct qeth_card *card, int len,
1854 struct qeth_cmd_buffer *iob,
1855 int (*reply_cb)
1856 (struct qeth_card *, struct qeth_reply*, unsigned long),
1857 void *reply_param)
1858
1859 {
1860 int rc;
1861 unsigned long flags;
1862 struct qeth_reply *reply = NULL;
1863 unsigned long timeout;
1864
1865 QETH_DBF_TEXT(trace, 2, "sendctl");
1866
1867 reply = qeth_alloc_reply(card);
1868 if (!reply) {
1869 PRINT_WARN("Could no alloc qeth_reply!\n");
1870 return -ENOMEM;
1871 }
1872 reply->callback = reply_cb;
1873 reply->param = reply_param;
1874 if (card->state == CARD_STATE_DOWN)
1875 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1876 else
1877 reply->seqno = card->seqno.ipa++;
1878 init_waitqueue_head(&reply->wait_q);
1879 spin_lock_irqsave(&card->lock, flags);
1880 list_add_tail(&reply->list, &card->cmd_waiter_list);
1881 spin_unlock_irqrestore(&card->lock, flags);
1882 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1883
1884 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1885 qeth_prepare_control_data(card, len, iob);
1886
1887 if (IS_IPA(iob->data))
1888 timeout = jiffies + QETH_IPA_TIMEOUT;
1889 else
1890 timeout = jiffies + QETH_TIMEOUT;
1891
1892 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1893 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1894 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1895 (addr_t) iob, 0, 0);
1896 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1897 if (rc){
1898 PRINT_WARN("qeth_send_control_data: "
1899 "ccw_device_start rc = %i\n", rc);
1900 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1901 spin_lock_irqsave(&card->lock, flags);
1902 list_del_init(&reply->list);
1903 qeth_put_reply(reply);
1904 spin_unlock_irqrestore(&card->lock, flags);
1905 qeth_release_buffer(iob->channel, iob);
1906 atomic_set(&card->write.irq_pending, 0);
1907 wake_up(&card->wait_q);
1908 return rc;
1909 }
1910 while (!atomic_read(&reply->received)) {
1911 if (time_after(jiffies, timeout)) {
1912 spin_lock_irqsave(&reply->card->lock, flags);
1913 list_del_init(&reply->list);
1914 spin_unlock_irqrestore(&reply->card->lock, flags);
1915 reply->rc = -ETIME;
1916 atomic_inc(&reply->received);
1917 wake_up(&reply->wait_q);
1918 }
1919 };
1920 rc = reply->rc;
1921 qeth_put_reply(reply);
1922 return rc;
1923 }
1924
1925 static int
1926 qeth_osn_send_control_data(struct qeth_card *card, int len,
1927 struct qeth_cmd_buffer *iob)
1928 {
1929 unsigned long flags;
1930 int rc = 0;
1931
1932 QETH_DBF_TEXT(trace, 5, "osndctrd");
1933
1934 wait_event(card->wait_q,
1935 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1936 qeth_prepare_control_data(card, len, iob);
1937 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1938 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1939 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1940 (addr_t) iob, 0, 0);
1941 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1942 if (rc){
1943 PRINT_WARN("qeth_osn_send_control_data: "
1944 "ccw_device_start rc = %i\n", rc);
1945 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1946 qeth_release_buffer(iob->channel, iob);
1947 atomic_set(&card->write.irq_pending, 0);
1948 wake_up(&card->wait_q);
1949 }
1950 return rc;
1951 }
1952
1953 static inline void
1954 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1955 char prot_type)
1956 {
1957 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1958 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1959 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1960 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1961 }
1962
1963 static int
1964 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1965 int data_len)
1966 {
1967 u16 s1, s2;
1968
1969 QETH_DBF_TEXT(trace,4,"osndipa");
1970
1971 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1972 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1973 s2 = (u16)data_len;
1974 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1975 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1976 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1977 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1978 return qeth_osn_send_control_data(card, s1, iob);
1979 }
1980
1981 static int
1982 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1983 int (*reply_cb)
1984 (struct qeth_card *,struct qeth_reply*, unsigned long),
1985 void *reply_param)
1986 {
1987 int rc;
1988 char prot_type;
1989
1990 QETH_DBF_TEXT(trace,4,"sendipa");
1991
1992 if (card->options.layer2)
1993 if (card->info.type == QETH_CARD_TYPE_OSN)
1994 prot_type = QETH_PROT_OSN2;
1995 else
1996 prot_type = QETH_PROT_LAYER2;
1997 else
1998 prot_type = QETH_PROT_TCPIP;
1999 qeth_prepare_ipa_cmd(card,iob,prot_type);
2000 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
2001 reply_cb, reply_param);
2002 return rc;
2003 }
2004
2005
2006 static int
2007 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2008 unsigned long data)
2009 {
2010 struct qeth_cmd_buffer *iob;
2011
2012 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2013
2014 iob = (struct qeth_cmd_buffer *) data;
2015 memcpy(&card->token.cm_filter_r,
2016 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2017 QETH_MPC_TOKEN_LENGTH);
2018 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2019 return 0;
2020 }
2021
2022 static int
2023 qeth_cm_enable(struct qeth_card *card)
2024 {
2025 int rc;
2026 struct qeth_cmd_buffer *iob;
2027
2028 QETH_DBF_TEXT(setup,2,"cmenable");
2029
2030 iob = qeth_wait_for_buffer(&card->write);
2031 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2032 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2033 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2034 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2035 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2036
2037 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2038 qeth_cm_enable_cb, NULL);
2039 return rc;
2040 }
2041
2042 static int
2043 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2044 unsigned long data)
2045 {
2046
2047 struct qeth_cmd_buffer *iob;
2048
2049 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2050
2051 iob = (struct qeth_cmd_buffer *) data;
2052 memcpy(&card->token.cm_connection_r,
2053 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2054 QETH_MPC_TOKEN_LENGTH);
2055 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2056 return 0;
2057 }
2058
2059 static int
2060 qeth_cm_setup(struct qeth_card *card)
2061 {
2062 int rc;
2063 struct qeth_cmd_buffer *iob;
2064
2065 QETH_DBF_TEXT(setup,2,"cmsetup");
2066
2067 iob = qeth_wait_for_buffer(&card->write);
2068 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2069 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2070 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2071 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2072 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2073 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2074 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2075 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2076 qeth_cm_setup_cb, NULL);
2077 return rc;
2078
2079 }
2080
2081 static int
2082 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2083 unsigned long data)
2084 {
2085
2086 __u16 mtu, framesize;
2087 __u16 len;
2088 __u8 link_type;
2089 struct qeth_cmd_buffer *iob;
2090
2091 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2092
2093 iob = (struct qeth_cmd_buffer *) data;
2094 memcpy(&card->token.ulp_filter_r,
2095 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2096 QETH_MPC_TOKEN_LENGTH);
2097 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2098 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2099 mtu = qeth_get_mtu_outof_framesize(framesize);
2100 if (!mtu) {
2101 iob->rc = -EINVAL;
2102 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2103 return 0;
2104 }
2105 card->info.max_mtu = mtu;
2106 card->info.initial_mtu = mtu;
2107 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2108 } else {
2109 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2110 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2111 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2112 }
2113
2114 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2115 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2116 memcpy(&link_type,
2117 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2118 card->info.link_type = link_type;
2119 } else
2120 card->info.link_type = 0;
2121 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2122 return 0;
2123 }
2124
2125 static int
2126 qeth_ulp_enable(struct qeth_card *card)
2127 {
2128 int rc;
2129 char prot_type;
2130 struct qeth_cmd_buffer *iob;
2131
2132 /*FIXME: trace view callbacks*/
2133 QETH_DBF_TEXT(setup,2,"ulpenabl");
2134
2135 iob = qeth_wait_for_buffer(&card->write);
2136 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2137
2138 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2139 (__u8) card->info.portno;
2140 if (card->options.layer2)
2141 if (card->info.type == QETH_CARD_TYPE_OSN)
2142 prot_type = QETH_PROT_OSN2;
2143 else
2144 prot_type = QETH_PROT_LAYER2;
2145 else
2146 prot_type = QETH_PROT_TCPIP;
2147
2148 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2149 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2150 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2151 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2152 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2153 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2154 card->info.portname, 9);
2155 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2156 qeth_ulp_enable_cb, NULL);
2157 return rc;
2158
2159 }
2160
2161 static inline __u16
2162 __raw_devno_from_bus_id(char *id)
2163 {
2164 id += (strlen(id) - 4);
2165 return (__u16) simple_strtoul(id, &id, 16);
2166 }
2167
2168 static int
2169 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2170 unsigned long data)
2171 {
2172 struct qeth_cmd_buffer *iob;
2173
2174 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2175
2176 iob = (struct qeth_cmd_buffer *) data;
2177 memcpy(&card->token.ulp_connection_r,
2178 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2179 QETH_MPC_TOKEN_LENGTH);
2180 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2181 return 0;
2182 }
2183
2184 static int
2185 qeth_ulp_setup(struct qeth_card *card)
2186 {
2187 int rc;
2188 __u16 temp;
2189 struct qeth_cmd_buffer *iob;
2190
2191 QETH_DBF_TEXT(setup,2,"ulpsetup");
2192
2193 iob = qeth_wait_for_buffer(&card->write);
2194 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2195
2196 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2197 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2198 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2199 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2200 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2201 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2202
2203 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2204 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2205 temp = (card->info.cula << 8) + card->info.unit_addr2;
2206 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2207 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2208 qeth_ulp_setup_cb, NULL);
2209 return rc;
2210 }
2211
2212 static inline int
2213 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2214 unsigned int siga_error, const char *dbftext)
2215 {
2216 if (qdio_error || siga_error) {
2217 QETH_DBF_TEXT(trace, 2, dbftext);
2218 QETH_DBF_TEXT(qerr, 2, dbftext);
2219 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2220 buf->element[15].flags & 0xff);
2221 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2222 buf->element[14].flags & 0xff);
2223 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2224 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2225 return 1;
2226 }
2227 return 0;
2228 }
2229
2230 static struct sk_buff *
2231 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2232 {
2233 struct sk_buff* skb;
2234 int add_len;
2235
2236 add_len = 0;
2237 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2238 add_len = sizeof(struct qeth_hdr);
2239 #ifdef CONFIG_QETH_VLAN
2240 else
2241 add_len = VLAN_HLEN;
2242 #endif
2243 skb = dev_alloc_skb(length + add_len);
2244 if (skb && add_len)
2245 skb_reserve(skb, add_len);
2246 return skb;
2247 }
2248
2249 static struct sk_buff *
2250 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2251 struct qdio_buffer_element **__element, int *__offset,
2252 struct qeth_hdr **hdr)
2253 {
2254 struct qdio_buffer_element *element = *__element;
2255 int offset = *__offset;
2256 struct sk_buff *skb = NULL;
2257 int skb_len;
2258 void *data_ptr;
2259 int data_len;
2260
2261 QETH_DBF_TEXT(trace,6,"nextskb");
2262 /* qeth_hdr must not cross element boundaries */
2263 if (element->length < offset + sizeof(struct qeth_hdr)){
2264 if (qeth_is_last_sbale(element))
2265 return NULL;
2266 element++;
2267 offset = 0;
2268 if (element->length < sizeof(struct qeth_hdr))
2269 return NULL;
2270 }
2271 *hdr = element->addr + offset;
2272
2273 offset += sizeof(struct qeth_hdr);
2274 if (card->options.layer2)
2275 if (card->info.type == QETH_CARD_TYPE_OSN)
2276 skb_len = (*hdr)->hdr.osn.pdu_length;
2277 else
2278 skb_len = (*hdr)->hdr.l2.pkt_length;
2279 else
2280 skb_len = (*hdr)->hdr.l3.length;
2281
2282 if (!skb_len)
2283 return NULL;
2284 if (card->options.fake_ll){
2285 if(card->dev->type == ARPHRD_IEEE802_TR){
2286 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2287 goto no_mem;
2288 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2289 } else {
2290 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2291 goto no_mem;
2292 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2293 }
2294 } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2295 goto no_mem;
2296 data_ptr = element->addr + offset;
2297 while (skb_len) {
2298 data_len = min(skb_len, (int)(element->length - offset));
2299 if (data_len)
2300 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2301 skb_len -= data_len;
2302 if (skb_len){
2303 if (qeth_is_last_sbale(element)){
2304 QETH_DBF_TEXT(trace,4,"unexeob");
2305 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2306 QETH_DBF_TEXT(qerr,2,"unexeob");
2307 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2308 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2309 dev_kfree_skb_any(skb);
2310 card->stats.rx_errors++;
2311 return NULL;
2312 }
2313 element++;
2314 offset = 0;
2315 data_ptr = element->addr;
2316 } else {
2317 offset += data_len;
2318 }
2319 }
2320 *__element = element;
2321 *__offset = offset;
2322 return skb;
2323 no_mem:
2324 if (net_ratelimit()){
2325 PRINT_WARN("No memory for packet received on %s.\n",
2326 QETH_CARD_IFNAME(card));
2327 QETH_DBF_TEXT(trace,2,"noskbmem");
2328 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2329 }
2330 card->stats.rx_dropped++;
2331 return NULL;
2332 }
2333
2334 static __be16
2335 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2336 {
2337 struct qeth_card *card;
2338 struct ethhdr *eth;
2339
2340 QETH_DBF_TEXT(trace,6,"typtrans");
2341
2342 card = (struct qeth_card *)dev->priv;
2343 #ifdef CONFIG_TR
2344 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2345 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2346 return tr_type_trans(skb,dev);
2347 #endif /* CONFIG_TR */
2348 skb_reset_mac_header(skb);
2349 skb_pull(skb, ETH_HLEN );
2350 eth = eth_hdr(skb);
2351
2352 if (*eth->h_dest & 1) {
2353 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2354 skb->pkt_type = PACKET_BROADCAST;
2355 else
2356 skb->pkt_type = PACKET_MULTICAST;
2357 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2358 skb->pkt_type = PACKET_OTHERHOST;
2359
2360 if (ntohs(eth->h_proto) >= 1536)
2361 return eth->h_proto;
2362 if (*(unsigned short *) (skb->data) == 0xFFFF)
2363 return htons(ETH_P_802_3);
2364 return htons(ETH_P_802_2);
2365 }
2366
2367 static void
2368 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2369 struct qeth_hdr *hdr)
2370 {
2371 struct trh_hdr *fake_hdr;
2372 struct trllc *fake_llc;
2373 struct iphdr *ip_hdr;
2374
2375 QETH_DBF_TEXT(trace,5,"skbfktr");
2376 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_TR);
2377 /* this is a fake ethernet header */
2378 fake_hdr = tr_hdr(skb);
2379
2380 /* the destination MAC address */
2381 switch (skb->pkt_type){
2382 case PACKET_MULTICAST:
2383 switch (skb->protocol){
2384 #ifdef CONFIG_QETH_IPV6
2385 case __constant_htons(ETH_P_IPV6):
2386 ndisc_mc_map((struct in6_addr *)
2387 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2388 fake_hdr->daddr, card->dev, 0);
2389 break;
2390 #endif /* CONFIG_QETH_IPV6 */
2391 case __constant_htons(ETH_P_IP):
2392 ip_hdr = (struct iphdr *)skb->data;
2393 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2394 break;
2395 default:
2396 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2397 }
2398 break;
2399 case PACKET_BROADCAST:
2400 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2401 break;
2402 default:
2403 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2404 }
2405 /* the source MAC address */
2406 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2407 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2408 else
2409 memset(fake_hdr->saddr, 0, TR_ALEN);
2410 fake_hdr->rcf=0;
2411 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2412 fake_llc->dsap = EXTENDED_SAP;
2413 fake_llc->ssap = EXTENDED_SAP;
2414 fake_llc->llc = UI_CMD;
2415 fake_llc->protid[0] = 0;
2416 fake_llc->protid[1] = 0;
2417 fake_llc->protid[2] = 0;
2418 fake_llc->ethertype = ETH_P_IP;
2419 }
2420
2421 static void
2422 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2423 struct qeth_hdr *hdr)
2424 {
2425 struct ethhdr *fake_hdr;
2426 struct iphdr *ip_hdr;
2427
2428 QETH_DBF_TEXT(trace,5,"skbfketh");
2429 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
2430 /* this is a fake ethernet header */
2431 fake_hdr = eth_hdr(skb);
2432
2433 /* the destination MAC address */
2434 switch (skb->pkt_type){
2435 case PACKET_MULTICAST:
2436 switch (skb->protocol){
2437 #ifdef CONFIG_QETH_IPV6
2438 case __constant_htons(ETH_P_IPV6):
2439 ndisc_mc_map((struct in6_addr *)
2440 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2441 fake_hdr->h_dest, card->dev, 0);
2442 break;
2443 #endif /* CONFIG_QETH_IPV6 */
2444 case __constant_htons(ETH_P_IP):
2445 ip_hdr = (struct iphdr *)skb->data;
2446 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2447 break;
2448 default:
2449 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2450 }
2451 break;
2452 case PACKET_BROADCAST:
2453 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2454 break;
2455 default:
2456 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2457 }
2458 /* the source MAC address */
2459 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2460 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2461 else
2462 memset(fake_hdr->h_source, 0, ETH_ALEN);
2463 /* the protocol */
2464 fake_hdr->h_proto = skb->protocol;
2465 }
2466
2467 static inline void
2468 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2469 struct qeth_hdr *hdr)
2470 {
2471 if (card->dev->type == ARPHRD_IEEE802_TR)
2472 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2473 else
2474 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2475 }
2476
2477 static inline void
2478 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2479 struct qeth_hdr *hdr)
2480 {
2481 skb->pkt_type = PACKET_HOST;
2482 skb->protocol = qeth_type_trans(skb, skb->dev);
2483 if (card->options.checksum_type == NO_CHECKSUMMING)
2484 skb->ip_summed = CHECKSUM_UNNECESSARY;
2485 else
2486 skb->ip_summed = CHECKSUM_NONE;
2487 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2488 }
2489
2490 static __u16
2491 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2492 struct qeth_hdr *hdr)
2493 {
2494 unsigned short vlan_id = 0;
2495 #ifdef CONFIG_QETH_IPV6
2496 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2497 skb->pkt_type = PACKET_HOST;
2498 skb->protocol = qeth_type_trans(skb, card->dev);
2499 return 0;
2500 }
2501 #endif /* CONFIG_QETH_IPV6 */
2502 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2503 ETH_P_IP);
2504 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2505 case QETH_CAST_UNICAST:
2506 skb->pkt_type = PACKET_HOST;
2507 break;
2508 case QETH_CAST_MULTICAST:
2509 skb->pkt_type = PACKET_MULTICAST;
2510 card->stats.multicast++;
2511 break;
2512 case QETH_CAST_BROADCAST:
2513 skb->pkt_type = PACKET_BROADCAST;
2514 card->stats.multicast++;
2515 break;
2516 case QETH_CAST_ANYCAST:
2517 case QETH_CAST_NOCAST:
2518 default:
2519 skb->pkt_type = PACKET_HOST;
2520 }
2521
2522 if (hdr->hdr.l3.ext_flags &
2523 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2524 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2525 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2526 }
2527
2528 if (card->options.fake_ll)
2529 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2530 else
2531 skb_reset_mac_header(skb);
2532 skb->ip_summed = card->options.checksum_type;
2533 if (card->options.checksum_type == HW_CHECKSUMMING){
2534 if ( (hdr->hdr.l3.ext_flags &
2535 (QETH_HDR_EXT_CSUM_HDR_REQ |
2536 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2537 (QETH_HDR_EXT_CSUM_HDR_REQ |
2538 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2539 skb->ip_summed = CHECKSUM_UNNECESSARY;
2540 else
2541 skb->ip_summed = SW_CHECKSUMMING;
2542 }
2543 return vlan_id;
2544 }
2545
2546 static void
2547 qeth_process_inbound_buffer(struct qeth_card *card,
2548 struct qeth_qdio_buffer *buf, int index)
2549 {
2550 struct qdio_buffer_element *element;
2551 struct sk_buff *skb;
2552 struct qeth_hdr *hdr;
2553 int offset;
2554 int rxrc;
2555 __u16 vlan_tag = 0;
2556
2557 /* get first element of current buffer */
2558 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2559 offset = 0;
2560 if (card->options.performance_stats)
2561 card->perf_stats.bufs_rec++;
2562 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2563 &offset, &hdr))) {
2564 skb->dev = card->dev;
2565 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2566 qeth_layer2_rebuild_skb(card, skb, hdr);
2567 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2568 vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2569 else { /*in case of OSN*/
2570 skb_push(skb, sizeof(struct qeth_hdr));
2571 skb_copy_to_linear_data(skb, hdr,
2572 sizeof(struct qeth_hdr));
2573 }
2574 /* is device UP ? */
2575 if (!(card->dev->flags & IFF_UP)){
2576 dev_kfree_skb_any(skb);
2577 continue;
2578 }
2579 if (card->info.type == QETH_CARD_TYPE_OSN)
2580 rxrc = card->osn_info.data_cb(skb);
2581 else
2582 #ifdef CONFIG_QETH_VLAN
2583 if (vlan_tag)
2584 if (card->vlangrp)
2585 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2586 else {
2587 dev_kfree_skb_any(skb);
2588 continue;
2589 }
2590 else
2591 #endif
2592 rxrc = netif_rx(skb);
2593 card->dev->last_rx = jiffies;
2594 card->stats.rx_packets++;
2595 card->stats.rx_bytes += skb->len;
2596 }
2597 }
2598
2599 static struct qeth_buffer_pool_entry *
2600 qeth_get_buffer_pool_entry(struct qeth_card *card)
2601 {
2602 struct qeth_buffer_pool_entry *entry;
2603
2604 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2605 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2606 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2607 struct qeth_buffer_pool_entry, list);
2608 list_del_init(&entry->list);
2609 return entry;
2610 }
2611 return NULL;
2612 }
2613
2614 static void
2615 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2616 {
2617 struct qeth_buffer_pool_entry *pool_entry;
2618 int i;
2619
2620 pool_entry = qeth_get_buffer_pool_entry(card);
2621 /*
2622 * since the buffer is accessed only from the input_tasklet
2623 * there shouldn't be a need to synchronize; also, since we use
2624 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2625 * buffers
2626 */
2627 BUG_ON(!pool_entry);
2628
2629 buf->pool_entry = pool_entry;
2630 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2631 buf->buffer->element[i].length = PAGE_SIZE;
2632 buf->buffer->element[i].addr = pool_entry->elements[i];
2633 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2634 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2635 else
2636 buf->buffer->element[i].flags = 0;
2637 }
2638 buf->state = QETH_QDIO_BUF_EMPTY;
2639 }
2640
2641 static void
2642 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2643 struct qeth_qdio_out_buffer *buf)
2644 {
2645 int i;
2646 struct sk_buff *skb;
2647
2648 /* is PCI flag set on buffer? */
2649 if (buf->buffer->element[0].flags & 0x40)
2650 atomic_dec(&queue->set_pci_flags_count);
2651
2652 while ((skb = skb_dequeue(&buf->skb_list))){
2653 atomic_dec(&skb->users);
2654 dev_kfree_skb_any(skb);
2655 }
2656 qeth_eddp_buf_release_contexts(buf);
2657 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2658 buf->buffer->element[i].length = 0;
2659 buf->buffer->element[i].addr = NULL;
2660 buf->buffer->element[i].flags = 0;
2661 }
2662 buf->next_element_to_fill = 0;
2663 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2664 }
2665
2666 static void
2667 qeth_queue_input_buffer(struct qeth_card *card, int index)
2668 {
2669 struct qeth_qdio_q *queue = card->qdio.in_q;
2670 int count;
2671 int i;
2672 int rc;
2673
2674 QETH_DBF_TEXT(trace,6,"queinbuf");
2675 count = (index < queue->next_buf_to_init)?
2676 card->qdio.in_buf_pool.buf_count -
2677 (queue->next_buf_to_init - index) :
2678 card->qdio.in_buf_pool.buf_count -
2679 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2680 /* only requeue at a certain threshold to avoid SIGAs */
2681 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2682 for (i = queue->next_buf_to_init;
2683 i < queue->next_buf_to_init + count; ++i)
2684 qeth_init_input_buffer(card,
2685 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2686 /*
2687 * according to old code it should be avoided to requeue all
2688 * 128 buffers in order to benefit from PCI avoidance.
2689 * this function keeps at least one buffer (the buffer at
2690 * 'index') un-requeued -> this buffer is the first buffer that
2691 * will be requeued the next time
2692 */
2693 if (card->options.performance_stats) {
2694 card->perf_stats.inbound_do_qdio_cnt++;
2695 card->perf_stats.inbound_do_qdio_start_time =
2696 qeth_get_micros();
2697 }
2698 rc = do_QDIO(CARD_DDEV(card),
2699 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2700 0, queue->next_buf_to_init, count, NULL);
2701 if (card->options.performance_stats)
2702 card->perf_stats.inbound_do_qdio_time +=
2703 qeth_get_micros() -
2704 card->perf_stats.inbound_do_qdio_start_time;
2705 if (rc){
2706 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2707 "return %i (device %s).\n",
2708 rc, CARD_DDEV_ID(card));
2709 QETH_DBF_TEXT(trace,2,"qinberr");
2710 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2711 }
2712 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2713 QDIO_MAX_BUFFERS_PER_Q;
2714 }
2715 }
2716
2717 static inline void
2718 qeth_put_buffer_pool_entry(struct qeth_card *card,
2719 struct qeth_buffer_pool_entry *entry)
2720 {
2721 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2722 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2723 }
2724
2725 static void
2726 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2727 unsigned int qdio_err, unsigned int siga_err,
2728 unsigned int queue, int first_element, int count,
2729 unsigned long card_ptr)
2730 {
2731 struct net_device *net_dev;
2732 struct qeth_card *card;
2733 struct qeth_qdio_buffer *buffer;
2734 int index;
2735 int i;
2736
2737 QETH_DBF_TEXT(trace, 6, "qdinput");
2738 card = (struct qeth_card *) card_ptr;
2739 net_dev = card->dev;
2740 if (card->options.performance_stats) {
2741 card->perf_stats.inbound_cnt++;
2742 card->perf_stats.inbound_start_time = qeth_get_micros();
2743 }
2744 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2745 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2746 QETH_DBF_TEXT(trace, 1,"qdinchk");
2747 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2748 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2749 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2750 qeth_schedule_recovery(card);
2751 return;
2752 }
2753 }
2754 for (i = first_element; i < (first_element + count); ++i) {
2755 index = i % QDIO_MAX_BUFFERS_PER_Q;
2756 buffer = &card->qdio.in_q->bufs[index];
2757 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2758 qeth_check_qdio_errors(buffer->buffer,
2759 qdio_err, siga_err,"qinerr")))
2760 qeth_process_inbound_buffer(card, buffer, index);
2761 /* clear buffer and give back to hardware */
2762 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2763 qeth_queue_input_buffer(card, index);
2764 }
2765 if (card->options.performance_stats)
2766 card->perf_stats.inbound_time += qeth_get_micros() -
2767 card->perf_stats.inbound_start_time;
2768 }
2769
2770 static int
2771 qeth_handle_send_error(struct qeth_card *card,
2772 struct qeth_qdio_out_buffer *buffer,
2773 unsigned int qdio_err, unsigned int siga_err)
2774 {
2775 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2776 int cc = siga_err & 3;
2777
2778 QETH_DBF_TEXT(trace, 6, "hdsnderr");
2779 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2780 switch (cc) {
2781 case 0:
2782 if (qdio_err){
2783 QETH_DBF_TEXT(trace, 1,"lnkfail");
2784 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2785 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2786 (u16)qdio_err, (u8)sbalf15);
2787 return QETH_SEND_ERROR_LINK_FAILURE;
2788 }
2789 return QETH_SEND_ERROR_NONE;
2790 case 2:
2791 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2792 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2793 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2794 return QETH_SEND_ERROR_KICK_IT;
2795 }
2796 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2797 return QETH_SEND_ERROR_RETRY;
2798 return QETH_SEND_ERROR_LINK_FAILURE;
2799 /* look at qdio_error and sbalf 15 */
2800 case 1:
2801 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2802 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2803 return QETH_SEND_ERROR_LINK_FAILURE;
2804 case 3:
2805 default:
2806 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2807 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2808 return QETH_SEND_ERROR_KICK_IT;
2809 }
2810 }
2811
2812 void
2813 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2814 int index, int count)
2815 {
2816 struct qeth_qdio_out_buffer *buf;
2817 int rc;
2818 int i;
2819
2820 QETH_DBF_TEXT(trace, 6, "flushbuf");
2821
2822 for (i = index; i < index + count; ++i) {
2823 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2824 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2825 SBAL_FLAGS_LAST_ENTRY;
2826
2827 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2828 continue;
2829
2830 if (!queue->do_pack){
2831 if ((atomic_read(&queue->used_buffers) >=
2832 (QETH_HIGH_WATERMARK_PACK -
2833 QETH_WATERMARK_PACK_FUZZ)) &&
2834 !atomic_read(&queue->set_pci_flags_count)){
2835 /* it's likely that we'll go to packing
2836 * mode soon */
2837 atomic_inc(&queue->set_pci_flags_count);
2838 buf->buffer->element[0].flags |= 0x40;
2839 }
2840 } else {
2841 if (!atomic_read(&queue->set_pci_flags_count)){
2842 /*
2843 * there's no outstanding PCI any more, so we
2844 * have to request a PCI to be sure the the PCI
2845 * will wake at some time in the future then we
2846 * can flush packed buffers that might still be
2847 * hanging around, which can happen if no
2848 * further send was requested by the stack
2849 */
2850 atomic_inc(&queue->set_pci_flags_count);
2851 buf->buffer->element[0].flags |= 0x40;
2852 }
2853 }
2854 }
2855
2856 queue->card->dev->trans_start = jiffies;
2857 if (queue->card->options.performance_stats) {
2858 queue->card->perf_stats.outbound_do_qdio_cnt++;
2859 queue->card->perf_stats.outbound_do_qdio_start_time =
2860 qeth_get_micros();
2861 }
2862 if (under_int)
2863 rc = do_QDIO(CARD_DDEV(queue->card),
2864 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2865 queue->queue_no, index, count, NULL);
2866 else
2867 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2868 queue->queue_no, index, count, NULL);
2869 if (queue->card->options.performance_stats)
2870 queue->card->perf_stats.outbound_do_qdio_time +=
2871 qeth_get_micros() -
2872 queue->card->perf_stats.outbound_do_qdio_start_time;
2873 if (rc){
2874 QETH_DBF_TEXT(trace, 2, "flushbuf");
2875 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2876 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2877 queue->card->stats.tx_errors += count;
2878 /* this must not happen under normal circumstances. if it
2879 * happens something is really wrong -> recover */
2880 qeth_schedule_recovery(queue->card);
2881 return;
2882 }
2883 atomic_add(count, &queue->used_buffers);
2884 if (queue->card->options.performance_stats)
2885 queue->card->perf_stats.bufs_sent += count;
2886 }
2887
2888 /*
2889 * Switched to packing state if the number of used buffers on a queue
2890 * reaches a certain limit.
2891 */
2892 static void
2893 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2894 {
2895 if (!queue->do_pack) {
2896 if (atomic_read(&queue->used_buffers)
2897 >= QETH_HIGH_WATERMARK_PACK){
2898 /* switch non-PACKING -> PACKING */
2899 QETH_DBF_TEXT(trace, 6, "np->pack");
2900 if (queue->card->options.performance_stats)
2901 queue->card->perf_stats.sc_dp_p++;
2902 queue->do_pack = 1;
2903 }
2904 }
2905 }
2906
2907 /*
2908 * Switches from packing to non-packing mode. If there is a packing
2909 * buffer on the queue this buffer will be prepared to be flushed.
2910 * In that case 1 is returned to inform the caller. If no buffer
2911 * has to be flushed, zero is returned.
2912 */
2913 static int
2914 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2915 {
2916 struct qeth_qdio_out_buffer *buffer;
2917 int flush_count = 0;
2918
2919 if (queue->do_pack) {
2920 if (atomic_read(&queue->used_buffers)
2921 <= QETH_LOW_WATERMARK_PACK) {
2922 /* switch PACKING -> non-PACKING */
2923 QETH_DBF_TEXT(trace, 6, "pack->np");
2924 if (queue->card->options.performance_stats)
2925 queue->card->perf_stats.sc_p_dp++;
2926 queue->do_pack = 0;
2927 /* flush packing buffers */
2928 buffer = &queue->bufs[queue->next_buf_to_fill];
2929 if ((atomic_read(&buffer->state) ==
2930 QETH_QDIO_BUF_EMPTY) &&
2931 (buffer->next_element_to_fill > 0)) {
2932 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2933 flush_count++;
2934 queue->next_buf_to_fill =
2935 (queue->next_buf_to_fill + 1) %
2936 QDIO_MAX_BUFFERS_PER_Q;
2937 }
2938 }
2939 }
2940 return flush_count;
2941 }
2942
2943 /*
2944 * Called to flush a packing buffer if no more pci flags are on the queue.
2945 * Checks if there is a packing buffer and prepares it to be flushed.
2946 * In that case returns 1, otherwise zero.
2947 */
2948 static int
2949 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2950 {
2951 struct qeth_qdio_out_buffer *buffer;
2952
2953 buffer = &queue->bufs[queue->next_buf_to_fill];
2954 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2955 (buffer->next_element_to_fill > 0)){
2956 /* it's a packing buffer */
2957 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2958 queue->next_buf_to_fill =
2959 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2960 return 1;
2961 }
2962 return 0;
2963 }
2964
2965 static void
2966 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2967 {
2968 int index;
2969 int flush_cnt = 0;
2970 int q_was_packing = 0;
2971
2972 /*
2973 * check if weed have to switch to non-packing mode or if
2974 * we have to get a pci flag out on the queue
2975 */
2976 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2977 !atomic_read(&queue->set_pci_flags_count)){
2978 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2979 QETH_OUT_Q_UNLOCKED) {
2980 /*
2981 * If we get in here, there was no action in
2982 * do_send_packet. So, we check if there is a
2983 * packing buffer to be flushed here.
2984 */
2985 netif_stop_queue(queue->card->dev);
2986 index = queue->next_buf_to_fill;
2987 q_was_packing = queue->do_pack;
2988 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2989 if (!flush_cnt &&
2990 !atomic_read(&queue->set_pci_flags_count))
2991 flush_cnt +=
2992 qeth_flush_buffers_on_no_pci(queue);
2993 if (queue->card->options.performance_stats &&
2994 q_was_packing)
2995 queue->card->perf_stats.bufs_sent_pack +=
2996 flush_cnt;
2997 if (flush_cnt)
2998 qeth_flush_buffers(queue, 1, index, flush_cnt);
2999 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3000 }
3001 }
3002 }
3003
3004 static void
3005 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3006 unsigned int qdio_error, unsigned int siga_error,
3007 unsigned int __queue, int first_element, int count,
3008 unsigned long card_ptr)
3009 {
3010 struct qeth_card *card = (struct qeth_card *) card_ptr;
3011 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3012 struct qeth_qdio_out_buffer *buffer;
3013 int i;
3014
3015 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3016 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3017 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3018 QETH_DBF_TEXT(trace, 2, "achkcond");
3019 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3020 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3021 netif_stop_queue(card->dev);
3022 qeth_schedule_recovery(card);
3023 return;
3024 }
3025 }
3026 if (card->options.performance_stats) {
3027 card->perf_stats.outbound_handler_cnt++;
3028 card->perf_stats.outbound_handler_start_time =
3029 qeth_get_micros();
3030 }
3031 for(i = first_element; i < (first_element + count); ++i){
3032 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3033 /*we only handle the KICK_IT error by doing a recovery */
3034 if (qeth_handle_send_error(card, buffer,
3035 qdio_error, siga_error)
3036 == QETH_SEND_ERROR_KICK_IT){
3037 netif_stop_queue(card->dev);
3038 qeth_schedule_recovery(card);
3039 return;
3040 }
3041 qeth_clear_output_buffer(queue, buffer);
3042 }
3043 atomic_sub(count, &queue->used_buffers);
3044 /* check if we need to do something on this outbound queue */
3045 if (card->info.type != QETH_CARD_TYPE_IQD)
3046 qeth_check_outbound_queue(queue);
3047
3048 netif_wake_queue(queue->card->dev);
3049 if (card->options.performance_stats)
3050 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3051 card->perf_stats.outbound_handler_start_time;
3052 }
3053
3054 static void
3055 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3056 {
3057
3058 param_field[0] = _ascebc['P'];
3059 param_field[1] = _ascebc['C'];
3060 param_field[2] = _ascebc['I'];
3061 param_field[3] = _ascebc['T'];
3062 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3063 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3064 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3065 }
3066
3067 static void
3068 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3069 {
3070 param_field[16] = _ascebc['B'];
3071 param_field[17] = _ascebc['L'];
3072 param_field[18] = _ascebc['K'];
3073 param_field[19] = _ascebc['T'];
3074 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3075 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3076 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3077 }
3078
3079 static void
3080 qeth_initialize_working_pool_list(struct qeth_card *card)
3081 {
3082 struct qeth_buffer_pool_entry *entry;
3083
3084 QETH_DBF_TEXT(trace,5,"inwrklst");
3085
3086 list_for_each_entry(entry,
3087 &card->qdio.init_pool.entry_list, init_list) {
3088 qeth_put_buffer_pool_entry(card,entry);
3089 }
3090 }
3091
3092 static void
3093 qeth_clear_working_pool_list(struct qeth_card *card)
3094 {
3095 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3096
3097 QETH_DBF_TEXT(trace,5,"clwrklst");
3098 list_for_each_entry_safe(pool_entry, tmp,
3099 &card->qdio.in_buf_pool.entry_list, list){
3100 list_del(&pool_entry->list);
3101 }
3102 }
3103
3104 static void
3105 qeth_free_buffer_pool(struct qeth_card *card)
3106 {
3107 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3108 int i=0;
3109 QETH_DBF_TEXT(trace,5,"freepool");
3110 list_for_each_entry_safe(pool_entry, tmp,
3111 &card->qdio.init_pool.entry_list, init_list){
3112 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3113 free_page((unsigned long)pool_entry->elements[i]);
3114 list_del(&pool_entry->init_list);
3115 kfree(pool_entry);
3116 }
3117 }
3118
3119 static int
3120 qeth_alloc_buffer_pool(struct qeth_card *card)
3121 {
3122 struct qeth_buffer_pool_entry *pool_entry;
3123 void *ptr;
3124 int i, j;
3125
3126 QETH_DBF_TEXT(trace,5,"alocpool");
3127 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3128 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3129 if (!pool_entry){
3130 qeth_free_buffer_pool(card);
3131 return -ENOMEM;
3132 }
3133 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3134 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3135 if (!ptr) {
3136 while (j > 0)
3137 free_page((unsigned long)
3138 pool_entry->elements[--j]);
3139 kfree(pool_entry);
3140 qeth_free_buffer_pool(card);
3141 return -ENOMEM;
3142 }
3143 pool_entry->elements[j] = ptr;
3144 }
3145 list_add(&pool_entry->init_list,
3146 &card->qdio.init_pool.entry_list);
3147 }
3148 return 0;
3149 }
3150
3151 int
3152 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3153 {
3154 QETH_DBF_TEXT(trace, 2, "realcbp");
3155
3156 if ((card->state != CARD_STATE_DOWN) &&
3157 (card->state != CARD_STATE_RECOVER))
3158 return -EPERM;
3159
3160 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3161 qeth_clear_working_pool_list(card);
3162 qeth_free_buffer_pool(card);
3163 card->qdio.in_buf_pool.buf_count = bufcnt;
3164 card->qdio.init_pool.buf_count = bufcnt;
3165 return qeth_alloc_buffer_pool(card);
3166 }
3167
3168 static int
3169 qeth_alloc_qdio_buffers(struct qeth_card *card)
3170 {
3171 int i, j;
3172
3173 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3174
3175 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3176 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3177 return 0;
3178
3179 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3180 GFP_KERNEL|GFP_DMA);
3181 if (!card->qdio.in_q)
3182 goto out_nomem;
3183 QETH_DBF_TEXT(setup, 2, "inq");
3184 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3185 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3186 /* give inbound qeth_qdio_buffers their qdio_buffers */
3187 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3188 card->qdio.in_q->bufs[i].buffer =
3189 &card->qdio.in_q->qdio_bufs[i];
3190 /* inbound buffer pool */
3191 if (qeth_alloc_buffer_pool(card))
3192 goto out_freeinq;
3193 /* outbound */
3194 card->qdio.out_qs =
3195 kmalloc(card->qdio.no_out_queues *
3196 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3197 if (!card->qdio.out_qs)
3198 goto out_freepool;
3199 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3200 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3201 GFP_KERNEL|GFP_DMA);
3202 if (!card->qdio.out_qs[i])
3203 goto out_freeoutq;
3204 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3205 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3206 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3207 card->qdio.out_qs[i]->queue_no = i;
3208 /* give outbound qeth_qdio_buffers their qdio_buffers */
3209 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3210 card->qdio.out_qs[i]->bufs[j].buffer =
3211 &card->qdio.out_qs[i]->qdio_bufs[j];
3212 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3213 skb_list);
3214 lockdep_set_class(
3215 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3216 &qdio_out_skb_queue_key);
3217 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3218 }
3219 }
3220 return 0;
3221
3222 out_freeoutq:
3223 while (i > 0)
3224 kfree(card->qdio.out_qs[--i]);
3225 kfree(card->qdio.out_qs);
3226 out_freepool:
3227 qeth_free_buffer_pool(card);
3228 out_freeinq:
3229 kfree(card->qdio.in_q);
3230 out_nomem:
3231 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3232 return -ENOMEM;
3233 }
3234
3235 static void
3236 qeth_free_qdio_buffers(struct qeth_card *card)
3237 {
3238 int i, j;
3239
3240 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3241 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3242 QETH_QDIO_UNINITIALIZED)
3243 return;
3244 kfree(card->qdio.in_q);
3245 /* inbound buffer pool */
3246 qeth_free_buffer_pool(card);
3247 /* free outbound qdio_qs */
3248 for (i = 0; i < card->qdio.no_out_queues; ++i){
3249 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3250 qeth_clear_output_buffer(card->qdio.out_qs[i],
3251 &card->qdio.out_qs[i]->bufs[j]);
3252 kfree(card->qdio.out_qs[i]);
3253 }
3254 kfree(card->qdio.out_qs);
3255 }
3256
3257 static void
3258 qeth_clear_qdio_buffers(struct qeth_card *card)
3259 {
3260 int i, j;
3261
3262 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3263 /* clear outbound buffers to free skbs */
3264 for (i = 0; i < card->qdio.no_out_queues; ++i)
3265 if (card->qdio.out_qs[i]){
3266 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3267 qeth_clear_output_buffer(card->qdio.out_qs[i],
3268 &card->qdio.out_qs[i]->bufs[j]);
3269 }
3270 }
3271
3272 static void
3273 qeth_init_qdio_info(struct qeth_card *card)
3274 {
3275 QETH_DBF_TEXT(setup, 4, "intqdinf");
3276 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3277 /* inbound */
3278 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3279 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3280 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3281 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3282 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3283 }
3284
3285 static int
3286 qeth_init_qdio_queues(struct qeth_card *card)
3287 {
3288 int i, j;
3289 int rc;
3290
3291 QETH_DBF_TEXT(setup, 2, "initqdqs");
3292
3293 /* inbound queue */
3294 memset(card->qdio.in_q->qdio_bufs, 0,
3295 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3296 qeth_initialize_working_pool_list(card);
3297 /*give only as many buffers to hardware as we have buffer pool entries*/
3298 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3299 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3300 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3301 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3302 card->qdio.in_buf_pool.buf_count - 1, NULL);
3303 if (rc) {
3304 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3305 return rc;
3306 }
3307 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3308 if (rc) {
3309 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3310 return rc;
3311 }
3312 /* outbound queue */
3313 for (i = 0; i < card->qdio.no_out_queues; ++i){
3314 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3315 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3316 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3317 qeth_clear_output_buffer(card->qdio.out_qs[i],
3318 &card->qdio.out_qs[i]->bufs[j]);
3319 }
3320 card->qdio.out_qs[i]->card = card;
3321 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3322 card->qdio.out_qs[i]->do_pack = 0;
3323 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3324 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3325 atomic_set(&card->qdio.out_qs[i]->state,
3326 QETH_OUT_Q_UNLOCKED);
3327 }
3328 return 0;
3329 }
3330
3331 static int
3332 qeth_qdio_establish(struct qeth_card *card)
3333 {
3334 struct qdio_initialize init_data;
3335 char *qib_param_field;
3336 struct qdio_buffer **in_sbal_ptrs;
3337 struct qdio_buffer **out_sbal_ptrs;
3338 int i, j, k;
3339 int rc = 0;
3340
3341 QETH_DBF_TEXT(setup, 2, "qdioest");
3342
3343 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3344 GFP_KERNEL);
3345 if (!qib_param_field)
3346 return -ENOMEM;
3347
3348 qeth_create_qib_param_field(card, qib_param_field);
3349 qeth_create_qib_param_field_blkt(card, qib_param_field);
3350
3351 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3352 GFP_KERNEL);
3353 if (!in_sbal_ptrs) {
3354 kfree(qib_param_field);
3355 return -ENOMEM;
3356 }
3357 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3358 in_sbal_ptrs[i] = (struct qdio_buffer *)
3359 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3360
3361 out_sbal_ptrs =
3362 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3363 sizeof(void *), GFP_KERNEL);
3364 if (!out_sbal_ptrs) {
3365 kfree(in_sbal_ptrs);
3366 kfree(qib_param_field);
3367 return -ENOMEM;
3368 }
3369 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3370 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3371 out_sbal_ptrs[k] = (struct qdio_buffer *)
3372 virt_to_phys(card->qdio.out_qs[i]->
3373 bufs[j].buffer);
3374 }
3375
3376 memset(&init_data, 0, sizeof(struct qdio_initialize));
3377 init_data.cdev = CARD_DDEV(card);
3378 init_data.q_format = qeth_get_qdio_q_format(card);
3379 init_data.qib_param_field_format = 0;
3380 init_data.qib_param_field = qib_param_field;
3381 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3382 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3383 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3384 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3385 init_data.no_input_qs = 1;
3386 init_data.no_output_qs = card->qdio.no_out_queues;
3387 init_data.input_handler = (qdio_handler_t *)
3388 qeth_qdio_input_handler;
3389 init_data.output_handler = (qdio_handler_t *)
3390 qeth_qdio_output_handler;
3391 init_data.int_parm = (unsigned long) card;
3392 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3393 QDIO_OUTBOUND_0COPY_SBALS |
3394 QDIO_USE_OUTBOUND_PCIS;
3395 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3396 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3397
3398 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3399 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3400 if ((rc = qdio_initialize(&init_data)))
3401 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3402
3403 kfree(out_sbal_ptrs);
3404 kfree(in_sbal_ptrs);
3405 kfree(qib_param_field);
3406 return rc;
3407 }
3408
3409 static int
3410 qeth_qdio_activate(struct qeth_card *card)
3411 {
3412 QETH_DBF_TEXT(setup,3,"qdioact");
3413 return qdio_activate(CARD_DDEV(card), 0);
3414 }
3415
3416 static int
3417 qeth_clear_channel(struct qeth_channel *channel)
3418 {
3419 unsigned long flags;
3420 struct qeth_card *card;
3421 int rc;
3422
3423 QETH_DBF_TEXT(trace,3,"clearch");
3424 card = CARD_FROM_CDEV(channel->ccwdev);
3425 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3426 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3427 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3428
3429 if (rc)
3430 return rc;
3431 rc = wait_event_interruptible_timeout(card->wait_q,
3432 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3433 if (rc == -ERESTARTSYS)
3434 return rc;
3435 if (channel->state != CH_STATE_STOPPED)
3436 return -ETIME;
3437 channel->state = CH_STATE_DOWN;
3438 return 0;
3439 }
3440
3441 static int
3442 qeth_halt_channel(struct qeth_channel *channel)
3443 {
3444 unsigned long flags;
3445 struct qeth_card *card;
3446 int rc;
3447
3448 QETH_DBF_TEXT(trace,3,"haltch");
3449 card = CARD_FROM_CDEV(channel->ccwdev);
3450 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3451 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3452 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3453
3454 if (rc)
3455 return rc;
3456 rc = wait_event_interruptible_timeout(card->wait_q,
3457 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3458 if (rc == -ERESTARTSYS)
3459 return rc;
3460 if (channel->state != CH_STATE_HALTED)
3461 return -ETIME;
3462 return 0;
3463 }
3464
3465 static int
3466 qeth_halt_channels(struct qeth_card *card)
3467 {
3468 int rc1 = 0, rc2=0, rc3 = 0;
3469
3470 QETH_DBF_TEXT(trace,3,"haltchs");
3471 rc1 = qeth_halt_channel(&card->read);
3472 rc2 = qeth_halt_channel(&card->write);
3473 rc3 = qeth_halt_channel(&card->data);
3474 if (rc1)
3475 return rc1;
3476 if (rc2)
3477 return rc2;
3478 return rc3;
3479 }
3480 static int
3481 qeth_clear_channels(struct qeth_card *card)
3482 {
3483 int rc1 = 0, rc2=0, rc3 = 0;
3484
3485 QETH_DBF_TEXT(trace,3,"clearchs");
3486 rc1 = qeth_clear_channel(&card->read);
3487 rc2 = qeth_clear_channel(&card->write);
3488 rc3 = qeth_clear_channel(&card->data);
3489 if (rc1)
3490 return rc1;
3491 if (rc2)
3492 return rc2;
3493 return rc3;
3494 }
3495
3496 static int
3497 qeth_clear_halt_card(struct qeth_card *card, int halt)
3498 {
3499 int rc = 0;
3500
3501 QETH_DBF_TEXT(trace,3,"clhacrd");
3502 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3503
3504 if (halt)
3505 rc = qeth_halt_channels(card);
3506 if (rc)
3507 return rc;
3508 return qeth_clear_channels(card);
3509 }
3510
3511 static int
3512 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3513 {
3514 int rc = 0;
3515
3516 QETH_DBF_TEXT(trace,3,"qdioclr");
3517 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3518 QETH_QDIO_CLEANING)) {
3519 case QETH_QDIO_ESTABLISHED:
3520 if ((rc = qdio_cleanup(CARD_DDEV(card),
3521 (card->info.type == QETH_CARD_TYPE_IQD) ?
3522 QDIO_FLAG_CLEANUP_USING_HALT :
3523 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3524 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3525 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3526 break;
3527 case QETH_QDIO_CLEANING:
3528 return rc;
3529 default:
3530 break;
3531 }
3532 if ((rc = qeth_clear_halt_card(card, use_halt)))
3533 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3534 card->state = CARD_STATE_DOWN;
3535 return rc;
3536 }
3537
3538 static int
3539 qeth_dm_act(struct qeth_card *card)
3540 {
3541 int rc;
3542 struct qeth_cmd_buffer *iob;
3543
3544 QETH_DBF_TEXT(setup,2,"dmact");
3545
3546 iob = qeth_wait_for_buffer(&card->write);
3547 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3548
3549 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3550 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3551 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3552 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3553 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3554 return rc;
3555 }
3556
3557 static int
3558 qeth_mpc_initialize(struct qeth_card *card)
3559 {
3560 int rc;
3561
3562 QETH_DBF_TEXT(setup,2,"mpcinit");
3563
3564 if ((rc = qeth_issue_next_read(card))){
3565 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3566 return rc;
3567 }
3568 if ((rc = qeth_cm_enable(card))){
3569 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3570 goto out_qdio;
3571 }
3572 if ((rc = qeth_cm_setup(card))){
3573 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3574 goto out_qdio;
3575 }
3576 if ((rc = qeth_ulp_enable(card))){
3577 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3578 goto out_qdio;
3579 }
3580 if ((rc = qeth_ulp_setup(card))){
3581 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3582 goto out_qdio;
3583 }
3584 if ((rc = qeth_alloc_qdio_buffers(card))){
3585 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3586 goto out_qdio;
3587 }
3588 if ((rc = qeth_qdio_establish(card))){
3589 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3590 qeth_free_qdio_buffers(card);
3591 goto out_qdio;
3592 }
3593 if ((rc = qeth_qdio_activate(card))){
3594 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3595 goto out_qdio;
3596 }
3597 if ((rc = qeth_dm_act(card))){
3598 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3599 goto out_qdio;
3600 }
3601
3602 return 0;
3603 out_qdio:
3604 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3605 return rc;
3606 }
3607
3608 static struct net_device *
3609 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3610 {
3611 struct net_device *dev = NULL;
3612
3613 switch (type) {
3614 case QETH_CARD_TYPE_OSAE:
3615 switch (linktype) {
3616 case QETH_LINK_TYPE_LANE_TR:
3617 case QETH_LINK_TYPE_HSTR:
3618 #ifdef CONFIG_TR
3619 dev = alloc_trdev(0);
3620 #endif /* CONFIG_TR */
3621 break;
3622 default:
3623 dev = alloc_etherdev(0);
3624 }
3625 break;
3626 case QETH_CARD_TYPE_IQD:
3627 dev = alloc_netdev(0, "hsi%d", ether_setup);
3628 break;
3629 case QETH_CARD_TYPE_OSN:
3630 dev = alloc_netdev(0, "osn%d", ether_setup);
3631 break;
3632 default:
3633 dev = alloc_etherdev(0);
3634 }
3635 return dev;
3636 }
3637
3638 /*hard_header fake function; used in case fake_ll is set */
3639 static int
3640 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3641 unsigned short type, void *daddr, void *saddr,
3642 unsigned len)
3643 {
3644 if(dev->type == ARPHRD_IEEE802_TR){
3645 struct trh_hdr *hdr;
3646 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3647 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3648 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3649 return QETH_FAKE_LL_LEN_TR;
3650
3651 } else {
3652 struct ethhdr *hdr;
3653 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3654 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3655 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3656 if (type != ETH_P_802_3)
3657 hdr->h_proto = htons(type);
3658 else
3659 hdr->h_proto = htons(len);
3660 return QETH_FAKE_LL_LEN_ETH;
3661
3662 }
3663 }
3664
3665 static int
3666 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3667
3668 static int
3669 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3670 {
3671 int rc;
3672 struct qeth_card *card;
3673
3674 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3675 card = (struct qeth_card *)dev->priv;
3676 if (skb==NULL) {
3677 card->stats.tx_dropped++;
3678 card->stats.tx_errors++;
3679 /* return OK; otherwise ksoftirqd goes to 100% */
3680 return NETDEV_TX_OK;
3681 }
3682 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3683 card->stats.tx_dropped++;
3684 card->stats.tx_errors++;
3685 card->stats.tx_carrier_errors++;
3686 dev_kfree_skb_any(skb);
3687 /* return OK; otherwise ksoftirqd goes to 100% */
3688 return NETDEV_TX_OK;
3689 }
3690 if (card->options.performance_stats) {
3691 card->perf_stats.outbound_cnt++;
3692 card->perf_stats.outbound_start_time = qeth_get_micros();
3693 }
3694 netif_stop_queue(dev);
3695 if ((rc = qeth_send_packet(card, skb))) {
3696 if (rc == -EBUSY) {
3697 return NETDEV_TX_BUSY;
3698 } else {
3699 card->stats.tx_errors++;
3700 card->stats.tx_dropped++;
3701 dev_kfree_skb_any(skb);
3702 /*set to OK; otherwise ksoftirqd goes to 100% */
3703 rc = NETDEV_TX_OK;
3704 }
3705 }
3706 netif_wake_queue(dev);
3707 if (card->options.performance_stats)
3708 card->perf_stats.outbound_time += qeth_get_micros() -
3709 card->perf_stats.outbound_start_time;
3710 return rc;
3711 }
3712
3713 static int
3714 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3715 {
3716 int rc = 0;
3717 #ifdef CONFIG_QETH_VLAN
3718 struct vlan_group *vg;
3719 int i;
3720
3721 if (!(vg = card->vlangrp))
3722 return rc;
3723
3724 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3725 if (vlan_group_get_device(vg, i) == dev){
3726 rc = QETH_VLAN_CARD;
3727 break;
3728 }
3729 }
3730 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3731 return 0;
3732
3733 #endif
3734 return rc;
3735 }
3736
3737 static int
3738 qeth_verify_dev(struct net_device *dev)
3739 {
3740 struct qeth_card *card;
3741 unsigned long flags;
3742 int rc = 0;
3743
3744 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3745 list_for_each_entry(card, &qeth_card_list.list, list){
3746 if (card->dev == dev){
3747 rc = QETH_REAL_CARD;
3748 break;
3749 }
3750 rc = qeth_verify_vlan_dev(dev, card);
3751 if (rc)
3752 break;
3753 }
3754 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3755
3756 return rc;
3757 }
3758
3759 static struct qeth_card *
3760 qeth_get_card_from_dev(struct net_device *dev)
3761 {
3762 struct qeth_card *card = NULL;
3763 int rc;
3764
3765 rc = qeth_verify_dev(dev);
3766 if (rc == QETH_REAL_CARD)
3767 card = (struct qeth_card *)dev->priv;
3768 else if (rc == QETH_VLAN_CARD)
3769 card = (struct qeth_card *)
3770 VLAN_DEV_INFO(dev)->real_dev->priv;
3771
3772 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3773 return card ;
3774 }
3775
3776 static void
3777 qeth_tx_timeout(struct net_device *dev)
3778 {
3779 struct qeth_card *card;
3780
3781 card = (struct qeth_card *) dev->priv;
3782 card->stats.tx_errors++;
3783 qeth_schedule_recovery(card);
3784 }
3785
3786 static int
3787 qeth_open(struct net_device *dev)
3788 {
3789 struct qeth_card *card;
3790
3791 QETH_DBF_TEXT(trace, 4, "qethopen");
3792
3793 card = (struct qeth_card *) dev->priv;
3794
3795 if (card->state != CARD_STATE_SOFTSETUP)
3796 return -ENODEV;
3797
3798 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3799 (card->options.layer2) &&
3800 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3801 QETH_DBF_TEXT(trace,4,"nomacadr");
3802 return -EPERM;
3803 }
3804 card->data.state = CH_STATE_UP;
3805 card->state = CARD_STATE_UP;
3806 card->dev->flags |= IFF_UP;
3807 netif_start_queue(dev);
3808
3809 if (!card->lan_online && netif_carrier_ok(dev))
3810 netif_carrier_off(dev);
3811 return 0;
3812 }
3813
3814 static int
3815 qeth_stop(struct net_device *dev)
3816 {
3817 struct qeth_card *card;
3818
3819 QETH_DBF_TEXT(trace, 4, "qethstop");
3820
3821 card = (struct qeth_card *) dev->priv;
3822
3823 netif_tx_disable(dev);
3824 card->dev->flags &= ~IFF_UP;
3825 if (card->state == CARD_STATE_UP)
3826 card->state = CARD_STATE_SOFTSETUP;
3827 return 0;
3828 }
3829
3830 static int
3831 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3832 {
3833 int cast_type = RTN_UNSPEC;
3834
3835 if (card->info.type == QETH_CARD_TYPE_OSN)
3836 return cast_type;
3837
3838 if (skb->dst && skb->dst->neighbour){
3839 cast_type = skb->dst->neighbour->type;
3840 if ((cast_type == RTN_BROADCAST) ||
3841 (cast_type == RTN_MULTICAST) ||
3842 (cast_type == RTN_ANYCAST))
3843 return cast_type;
3844 else
3845 return RTN_UNSPEC;
3846 }
3847 /* try something else */
3848 if (skb->protocol == ETH_P_IPV6)
3849 return (skb_network_header(skb)[24] == 0xff) ?
3850 RTN_MULTICAST : 0;
3851 else if (skb->protocol == ETH_P_IP)
3852 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
3853 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;
3868 break;
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
3879 static int
3880 qeth_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 const u8 tos = ip_hdr(skb)->tos;
3892
3893 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3894 if (tos & IP_TOS_NOTIMPORTANT)
3895 return 3;
3896 if (tos & IP_TOS_HIGHRELIABILITY)
3897 return 2;
3898 if (tos & IP_TOS_HIGHTHROUGHPUT)
3899 return 1;
3900 if (tos & IP_TOS_LOWDELAY)
3901 return 0;
3902 }
3903 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3904 return 3 - (tos >> 6);
3905 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3906 /* TODO: IPv6!!! */
3907 }
3908 return card->qdio.default_out_queue;
3909 case 1: /* fallthrough for single-out-queue 1920-device */
3910 default:
3911 return card->qdio.default_out_queue;
3912 }
3913 }
3914
3915 static inline int
3916 qeth_get_ip_version(struct sk_buff *skb)
3917 {
3918 switch (skb->protocol) {
3919 case ETH_P_IPV6:
3920 return 6;
3921 case ETH_P_IP:
3922 return 4;
3923 default:
3924 return 0;
3925 }
3926 }
3927
3928 static struct qeth_hdr *
3929 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
3930 {
3931 #ifdef CONFIG_QETH_VLAN
3932 u16 *tag;
3933 if (card->vlangrp && vlan_tx_tag_present(skb) &&
3934 ((ipv == 6) || card->options.layer2) ) {
3935 /*
3936 * Move the mac addresses (6 bytes src, 6 bytes dest)
3937 * to the beginning of the new header. We are using three
3938 * memcpys instead of one memmove to save cycles.
3939 */
3940 skb_push(skb, VLAN_HLEN);
3941 skb_copy_to_linear_data(skb, skb->data + 4, 4);
3942 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
3943 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
3944 tag = (u16 *)(skb->data + 12);
3945 /*
3946 * first two bytes = ETH_P_8021Q (0x8100)
3947 * second two bytes = VLANID
3948 */
3949 *tag = __constant_htons(ETH_P_8021Q);
3950 *(tag + 1) = htons(vlan_tx_tag_get(skb));
3951 }
3952 #endif
3953 return ((struct qeth_hdr *)
3954 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3955 }
3956
3957 static void
3958 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3959 {
3960 if (orig_skb != new_skb)
3961 dev_kfree_skb_any(new_skb);
3962 }
3963
3964 static struct sk_buff *
3965 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3966 struct qeth_hdr **hdr, int ipv)
3967 {
3968 struct sk_buff *new_skb, *new_skb2;
3969
3970 QETH_DBF_TEXT(trace, 6, "prepskb");
3971 new_skb = skb;
3972 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
3973 if (!new_skb)
3974 return NULL;
3975 new_skb2 = qeth_realloc_headroom(card, new_skb,
3976 sizeof(struct qeth_hdr));
3977 if (!new_skb2) {
3978 __qeth_free_new_skb(skb, new_skb);
3979 return NULL;
3980 }
3981 if (new_skb != skb)
3982 __qeth_free_new_skb(new_skb2, new_skb);
3983 new_skb = new_skb2;
3984 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3985 if (*hdr == NULL) {
3986 __qeth_free_new_skb(skb, new_skb);
3987 return NULL;
3988 }
3989 return new_skb;
3990 }
3991
3992 static inline u8
3993 qeth_get_qeth_hdr_flags4(int cast_type)
3994 {
3995 if (cast_type == RTN_MULTICAST)
3996 return QETH_CAST_MULTICAST;
3997 if (cast_type == RTN_BROADCAST)
3998 return QETH_CAST_BROADCAST;
3999 return QETH_CAST_UNICAST;
4000 }
4001
4002 static inline u8
4003 qeth_get_qeth_hdr_flags6(int cast_type)
4004 {
4005 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
4006 if (cast_type == RTN_MULTICAST)
4007 return ct | QETH_CAST_MULTICAST;
4008 if (cast_type == RTN_ANYCAST)
4009 return ct | QETH_CAST_ANYCAST;
4010 if (cast_type == RTN_BROADCAST)
4011 return ct | QETH_CAST_BROADCAST;
4012 return ct | QETH_CAST_UNICAST;
4013 }
4014
4015 static void
4016 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4017 struct sk_buff *skb)
4018 {
4019 __u16 hdr_mac;
4020
4021 if (!memcmp(skb->data+QETH_HEADER_SIZE,
4022 skb->dev->broadcast,6)) { /* broadcast? */
4023 *(__u32 *)hdr->hdr.l2.flags |=
4024 QETH_LAYER2_FLAG_BROADCAST << 8;
4025 return;
4026 }
4027 hdr_mac=*((__u16*)skb->data);
4028 /* tr multicast? */
4029 switch (card->info.link_type) {
4030 case QETH_LINK_TYPE_HSTR:
4031 case QETH_LINK_TYPE_LANE_TR:
4032 if ((hdr_mac == QETH_TR_MAC_NC) ||
4033 (hdr_mac == QETH_TR_MAC_C) )
4034 *(__u32 *)hdr->hdr.l2.flags |=
4035 QETH_LAYER2_FLAG_MULTICAST << 8;
4036 else
4037 *(__u32 *)hdr->hdr.l2.flags |=
4038 QETH_LAYER2_FLAG_UNICAST << 8;
4039 break;
4040 /* eth or so multicast? */
4041 default:
4042 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4043 (hdr_mac==QETH_ETH_MAC_V6) )
4044 *(__u32 *)hdr->hdr.l2.flags |=
4045 QETH_LAYER2_FLAG_MULTICAST << 8;
4046 else
4047 *(__u32 *)hdr->hdr.l2.flags |=
4048 QETH_LAYER2_FLAG_UNICAST << 8;
4049 }
4050 }
4051
4052 static void
4053 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4054 struct sk_buff *skb, int cast_type)
4055 {
4056 memset(hdr, 0, sizeof(struct qeth_hdr));
4057 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4058
4059 /* set byte 0 to "0x02" and byte 3 to casting flags */
4060 if (cast_type==RTN_MULTICAST)
4061 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4062 else if (cast_type==RTN_BROADCAST)
4063 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4064 else
4065 qeth_layer2_get_packet_type(card, hdr, skb);
4066
4067 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4068 #ifdef CONFIG_QETH_VLAN
4069 /* VSWITCH relies on the VLAN
4070 * information to be present in
4071 * the QDIO header */
4072 if ((card->vlangrp != NULL) &&
4073 vlan_tx_tag_present(skb)) {
4074 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4075 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4076 }
4077 #endif
4078 }
4079
4080 void
4081 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4082 struct sk_buff *skb, int ipv, int cast_type)
4083 {
4084 QETH_DBF_TEXT(trace, 6, "fillhdr");
4085
4086 memset(hdr, 0, sizeof(struct qeth_hdr));
4087 if (card->options.layer2) {
4088 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4089 return;
4090 }
4091 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4092 hdr->hdr.l3.ext_flags = 0;
4093 #ifdef CONFIG_QETH_VLAN
4094 /*
4095 * before we're going to overwrite this location with next hop ip.
4096 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4097 */
4098 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4099 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4100 QETH_HDR_EXT_VLAN_FRAME :
4101 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4102 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4103 }
4104 #endif /* CONFIG_QETH_VLAN */
4105 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4106 if (ipv == 4) { /* IPv4 */
4107 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4108 memset(hdr->hdr.l3.dest_addr, 0, 12);
4109 if ((skb->dst) && (skb->dst->neighbour)) {
4110 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4111 *((u32 *) skb->dst->neighbour->primary_key);
4112 } else {
4113 /* fill in destination address used in ip header */
4114 *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4115 ip_hdr(skb)->daddr;
4116 }
4117 } else if (ipv == 6) { /* IPv6 or passthru */
4118 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4119 if ((skb->dst) && (skb->dst->neighbour)) {
4120 memcpy(hdr->hdr.l3.dest_addr,
4121 skb->dst->neighbour->primary_key, 16);
4122 } else {
4123 /* fill in destination address used in ip header */
4124 memcpy(hdr->hdr.l3.dest_addr,
4125 &ipv6_hdr(skb)->daddr, 16);
4126 }
4127 } else { /* passthrough */
4128 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4129 !memcmp(skb->data + sizeof(struct qeth_hdr) +
4130 sizeof(__u16), skb->dev->broadcast, 6)) {
4131 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4132 QETH_HDR_PASSTHRU;
4133 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4134 skb->dev->broadcast, 6)) { /* broadcast? */
4135 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4136 QETH_HDR_PASSTHRU;
4137 } else {
4138 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4139 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4140 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4141 }
4142 }
4143 }
4144
4145 static void
4146 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4147 int is_tso, int *next_element_to_fill)
4148 {
4149 int length = skb->len;
4150 int length_here;
4151 int element;
4152 char *data;
4153 int first_lap ;
4154
4155 element = *next_element_to_fill;
4156 data = skb->data;
4157 first_lap = (is_tso == 0 ? 1 : 0);
4158
4159 while (length > 0) {
4160 /* length_here is the remaining amount of data in this page */
4161 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4162 if (length < length_here)
4163 length_here = length;
4164
4165 buffer->element[element].addr = data;
4166 buffer->element[element].length = length_here;
4167 length -= length_here;
4168 if (!length) {
4169 if (first_lap)
4170 buffer->element[element].flags = 0;
4171 else
4172 buffer->element[element].flags =
4173 SBAL_FLAGS_LAST_FRAG;
4174 } else {
4175 if (first_lap)
4176 buffer->element[element].flags =
4177 SBAL_FLAGS_FIRST_FRAG;
4178 else
4179 buffer->element[element].flags =
4180 SBAL_FLAGS_MIDDLE_FRAG;
4181 }
4182 data += length_here;
4183 element++;
4184 first_lap = 0;
4185 }
4186 *next_element_to_fill = element;
4187 }
4188
4189 static int
4190 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4191 struct qeth_qdio_out_buffer *buf,
4192 struct sk_buff *skb)
4193 {
4194 struct qdio_buffer *buffer;
4195 struct qeth_hdr_tso *hdr;
4196 int flush_cnt = 0, hdr_len, large_send = 0;
4197
4198 QETH_DBF_TEXT(trace, 6, "qdfillbf");
4199
4200 buffer = buf->buffer;
4201 atomic_inc(&skb->users);
4202 skb_queue_tail(&buf->skb_list, skb);
4203
4204 hdr = (struct qeth_hdr_tso *) skb->data;
4205 /*check first on TSO ....*/
4206 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4207 int element = buf->next_element_to_fill;
4208
4209 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4210 /*fill first buffer entry only with header information */
4211 buffer->element[element].addr = skb->data;
4212 buffer->element[element].length = hdr_len;
4213 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4214 buf->next_element_to_fill++;
4215 skb->data += hdr_len;
4216 skb->len -= hdr_len;
4217 large_send = 1;
4218 }
4219 if (skb_shinfo(skb)->nr_frags == 0)
4220 __qeth_fill_buffer(skb, buffer, large_send,
4221 (int *)&buf->next_element_to_fill);
4222 else
4223 __qeth_fill_buffer_frag(skb, buffer, large_send,
4224 (int *)&buf->next_element_to_fill);
4225
4226 if (!queue->do_pack) {
4227 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4228 /* set state to PRIMED -> will be flushed */
4229 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4230 flush_cnt = 1;
4231 } else {
4232 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4233 if (queue->card->options.performance_stats)
4234 queue->card->perf_stats.skbs_sent_pack++;
4235 if (buf->next_element_to_fill >=
4236 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4237 /*
4238 * packed buffer if full -> set state PRIMED
4239 * -> will be flushed
4240 */
4241 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4242 flush_cnt = 1;
4243 }
4244 }
4245 return flush_cnt;
4246 }
4247
4248 static int
4249 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4250 struct sk_buff *skb, struct qeth_hdr *hdr,
4251 int elements_needed,
4252 struct qeth_eddp_context *ctx)
4253 {
4254 struct qeth_qdio_out_buffer *buffer;
4255 int buffers_needed = 0;
4256 int flush_cnt = 0;
4257 int index;
4258
4259 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4260
4261 /* spin until we get the queue ... */
4262 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4263 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4264 /* ... now we've got the queue */
4265 index = queue->next_buf_to_fill;
4266 buffer = &queue->bufs[queue->next_buf_to_fill];
4267 /*
4268 * check if buffer is empty to make sure that we do not 'overtake'
4269 * ourselves and try to fill a buffer that is already primed
4270 */
4271 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4272 goto out;
4273 if (ctx == NULL)
4274 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4275 QDIO_MAX_BUFFERS_PER_Q;
4276 else {
4277 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4278 if (buffers_needed < 0)
4279 goto out;
4280 queue->next_buf_to_fill =
4281 (queue->next_buf_to_fill + buffers_needed) %
4282 QDIO_MAX_BUFFERS_PER_Q;
4283 }
4284 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4285 if (ctx == NULL) {
4286 qeth_fill_buffer(queue, buffer, skb);
4287 qeth_flush_buffers(queue, 0, index, 1);
4288 } else {
4289 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4290 WARN_ON(buffers_needed != flush_cnt);
4291 qeth_flush_buffers(queue, 0, index, flush_cnt);
4292 }
4293 return 0;
4294 out:
4295 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4296 return -EBUSY;
4297 }
4298
4299 static int
4300 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4301 struct sk_buff *skb, struct qeth_hdr *hdr,
4302 int elements_needed, struct qeth_eddp_context *ctx)
4303 {
4304 struct qeth_qdio_out_buffer *buffer;
4305 int start_index;
4306 int flush_count = 0;
4307 int do_pack = 0;
4308 int tmp;
4309 int rc = 0;
4310
4311 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4312
4313 /* spin until we get the queue ... */
4314 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4315 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4316 start_index = queue->next_buf_to_fill;
4317 buffer = &queue->bufs[queue->next_buf_to_fill];
4318 /*
4319 * check if buffer is empty to make sure that we do not 'overtake'
4320 * ourselves and try to fill a buffer that is already primed
4321 */
4322 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4323 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4324 return -EBUSY;
4325 }
4326 /* check if we need to switch packing state of this queue */
4327 qeth_switch_to_packing_if_needed(queue);
4328 if (queue->do_pack){
4329 do_pack = 1;
4330 if (ctx == NULL) {
4331 /* does packet fit in current buffer? */
4332 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4333 buffer->next_element_to_fill) < elements_needed){
4334 /* ... no -> set state PRIMED */
4335 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4336 flush_count++;
4337 queue->next_buf_to_fill =
4338 (queue->next_buf_to_fill + 1) %
4339 QDIO_MAX_BUFFERS_PER_Q;
4340 buffer = &queue->bufs[queue->next_buf_to_fill];
4341 /* we did a step forward, so check buffer state
4342 * again */
4343 if (atomic_read(&buffer->state) !=
4344 QETH_QDIO_BUF_EMPTY){
4345 qeth_flush_buffers(queue, 0, start_index, flush_count);
4346 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4347 return -EBUSY;
4348 }
4349 }
4350 } else {
4351 /* check if we have enough elements (including following
4352 * free buffers) to handle eddp context */
4353 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4354 printk("eddp tx_dropped 1\n");
4355 rc = -EBUSY;
4356 goto out;
4357 }
4358 }
4359 }
4360 if (ctx == NULL)
4361 tmp = qeth_fill_buffer(queue, buffer, skb);
4362 else {
4363 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4364 if (tmp < 0) {
4365 printk("eddp tx_dropped 2\n");
4366 rc = - EBUSY;
4367 goto out;
4368 }
4369 }
4370 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4371 QDIO_MAX_BUFFERS_PER_Q;
4372 flush_count += tmp;
4373 out:
4374 if (flush_count)
4375 qeth_flush_buffers(queue, 0, start_index, flush_count);
4376 else if (!atomic_read(&queue->set_pci_flags_count))
4377 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4378 /*
4379 * queue->state will go from LOCKED -> UNLOCKED or from
4380 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4381 * (switch packing state or flush buffer to get another pci flag out).
4382 * In that case we will enter this loop
4383 */
4384 while (atomic_dec_return(&queue->state)){
4385 flush_count = 0;
4386 start_index = queue->next_buf_to_fill;
4387 /* check if we can go back to non-packing state */
4388 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4389 /*
4390 * check if we need to flush a packing buffer to get a pci
4391 * flag out on the queue
4392 */
4393 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4394 flush_count += qeth_flush_buffers_on_no_pci(queue);
4395 if (flush_count)
4396 qeth_flush_buffers(queue, 0, start_index, flush_count);
4397 }
4398 /* at this point the queue is UNLOCKED again */
4399 if (queue->card->options.performance_stats && do_pack)
4400 queue->card->perf_stats.bufs_sent_pack += flush_count;
4401
4402 return rc;
4403 }
4404
4405 static int
4406 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4407 struct sk_buff *skb, int elems)
4408 {
4409 int elements_needed = 0;
4410
4411 if (skb_shinfo(skb)->nr_frags > 0)
4412 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4413 if (elements_needed == 0)
4414 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4415 + skb->len) >> PAGE_SHIFT);
4416 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4417 PRINT_ERR("Invalid size of IP packet "
4418 "(Number=%d / Length=%d). Discarded.\n",
4419 (elements_needed+elems), skb->len);
4420 return 0;
4421 }
4422 return elements_needed;
4423 }
4424
4425
4426 static int
4427 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4428 {
4429 int ipv = 0;
4430 int cast_type;
4431 struct qeth_qdio_out_q *queue;
4432 struct qeth_hdr *hdr = NULL;
4433 int elements_needed = 0;
4434 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4435 struct qeth_eddp_context *ctx = NULL;
4436 int tx_bytes = skb->len;
4437 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4438 unsigned short tso_size = skb_shinfo(skb)->gso_size;
4439 struct sk_buff *new_skb, *new_skb2;
4440 int rc;
4441
4442 QETH_DBF_TEXT(trace, 6, "sendpkt");
4443
4444 new_skb = skb;
4445 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4446 (skb->protocol == htons(ETH_P_IPV6)))
4447 return -EPERM;
4448 cast_type = qeth_get_cast_type(card, skb);
4449 if ((cast_type == RTN_BROADCAST) &&
4450 (card->info.broadcast_capable == 0))
4451 return -EPERM;
4452 queue = card->qdio.out_qs
4453 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4454 if (!card->options.layer2) {
4455 ipv = qeth_get_ip_version(skb);
4456 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4457 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4458 if (!new_skb)
4459 return -ENOMEM;
4460 if(card->dev->type == ARPHRD_IEEE802_TR){
4461 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4462 } else {
4463 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4464 }
4465 }
4466 }
4467 if (skb_is_gso(skb))
4468 large_send = card->options.large_send;
4469 /* check on OSN device*/
4470 if (card->info.type == QETH_CARD_TYPE_OSN)
4471 hdr = (struct qeth_hdr *)new_skb->data;
4472 /*are we able to do TSO ? */
4473 if ((large_send == QETH_LARGE_SEND_TSO) &&
4474 (cast_type == RTN_UNSPEC)) {
4475 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4476 if (rc) {
4477 __qeth_free_new_skb(skb, new_skb);
4478 return rc;
4479 }
4480 elements_needed++;
4481 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4482 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4483 if (!new_skb2) {
4484 __qeth_free_new_skb(skb, new_skb);
4485 return -EINVAL;
4486 }
4487 if (new_skb != skb)
4488 __qeth_free_new_skb(new_skb2, new_skb);
4489 new_skb = new_skb2;
4490 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4491 }
4492 if (large_send == QETH_LARGE_SEND_EDDP) {
4493 ctx = qeth_eddp_create_context(card, new_skb, hdr);
4494 if (ctx == NULL) {
4495 __qeth_free_new_skb(skb, new_skb);
4496 PRINT_WARN("could not create eddp context\n");
4497 return -EINVAL;
4498 }
4499 } else {
4500 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4501 elements_needed);
4502 if (!elems) {
4503 __qeth_free_new_skb(skb, new_skb);
4504 return -EINVAL;
4505 }
4506 elements_needed += elems;
4507 }
4508
4509 if (card->info.type != QETH_CARD_TYPE_IQD)
4510 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4511 elements_needed, ctx);
4512 else
4513 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4514 elements_needed, ctx);
4515 if (!rc) {
4516 card->stats.tx_packets++;
4517 card->stats.tx_bytes += tx_bytes;
4518 if (new_skb != skb)
4519 dev_kfree_skb_any(skb);
4520 if (card->options.performance_stats) {
4521 if (tso_size &&
4522 !(large_send == QETH_LARGE_SEND_NO)) {
4523 card->perf_stats.large_send_bytes += tx_bytes;
4524 card->perf_stats.large_send_cnt++;
4525 }
4526 if (nr_frags > 0) {
4527 card->perf_stats.sg_skbs_sent++;
4528 /* nr_frags + skb->data */
4529 card->perf_stats.sg_frags_sent +=
4530 nr_frags + 1;
4531 }
4532 }
4533 } else {
4534 card->stats.tx_dropped++;
4535 __qeth_free_new_skb(skb, new_skb);
4536 }
4537 if (ctx != NULL) {
4538 /* drop creator's reference */
4539 qeth_eddp_put_context(ctx);
4540 /* free skb; it's not referenced by a buffer */
4541 if (!rc)
4542 dev_kfree_skb_any(new_skb);
4543 }
4544 return rc;
4545 }
4546
4547 static int
4548 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4549 {
4550 struct qeth_card *card = (struct qeth_card *) dev->priv;
4551 int rc = 0;
4552
4553 switch(regnum){
4554 case MII_BMCR: /* Basic mode control register */
4555 rc = BMCR_FULLDPLX;
4556 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4557 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4558 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4559 rc |= BMCR_SPEED100;
4560 break;
4561 case MII_BMSR: /* Basic mode status register */
4562 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4563 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4564 BMSR_100BASE4;
4565 break;
4566 case MII_PHYSID1: /* PHYS ID 1 */
4567 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4568 dev->dev_addr[2];
4569 rc = (rc >> 5) & 0xFFFF;
4570 break;
4571 case MII_PHYSID2: /* PHYS ID 2 */
4572 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4573 break;
4574 case MII_ADVERTISE: /* Advertisement control reg */
4575 rc = ADVERTISE_ALL;
4576 break;
4577 case MII_LPA: /* Link partner ability reg */
4578 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4579 LPA_100BASE4 | LPA_LPACK;
4580 break;
4581 case MII_EXPANSION: /* Expansion register */
4582 break;
4583 case MII_DCOUNTER: /* disconnect counter */
4584 break;
4585 case MII_FCSCOUNTER: /* false carrier counter */
4586 break;
4587 case MII_NWAYTEST: /* N-way auto-neg test register */
4588 break;
4589 case MII_RERRCOUNTER: /* rx error counter */
4590 rc = card->stats.rx_errors;
4591 break;
4592 case MII_SREVISION: /* silicon revision */
4593 break;
4594 case MII_RESV1: /* reserved 1 */
4595 break;
4596 case MII_LBRERROR: /* loopback, rx, bypass error */
4597 break;
4598 case MII_PHYADDR: /* physical address */
4599 break;
4600 case MII_RESV2: /* reserved 2 */
4601 break;
4602 case MII_TPISTATUS: /* TPI status for 10mbps */
4603 break;
4604 case MII_NCONFIG: /* network interface config */
4605 break;
4606 default:
4607 break;
4608 }
4609 return rc;
4610 }
4611
4612
4613 static const char *
4614 qeth_arp_get_error_cause(int *rc)
4615 {
4616 switch (*rc) {
4617 case QETH_IPA_ARP_RC_FAILED:
4618 *rc = -EIO;
4619 return "operation failed";
4620 case QETH_IPA_ARP_RC_NOTSUPP:
4621 *rc = -EOPNOTSUPP;
4622 return "operation not supported";
4623 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4624 *rc = -EINVAL;
4625 return "argument out of range";
4626 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4627 *rc = -EOPNOTSUPP;
4628 return "query operation not supported";
4629 case QETH_IPA_ARP_RC_Q_NO_DATA:
4630 *rc = -ENOENT;
4631 return "no query data available";
4632 default:
4633 return "unknown error";
4634 }
4635 }
4636
4637 static int
4638 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4639 __u16, long);
4640
4641 static int
4642 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4643 {
4644 int tmp;
4645 int rc;
4646
4647 QETH_DBF_TEXT(trace,3,"arpstnoe");
4648
4649 /*
4650 * currently GuestLAN only supports the ARP assist function
4651 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4652 * thus we say EOPNOTSUPP for this ARP function
4653 */
4654 if (card->info.guestlan)
4655 return -EOPNOTSUPP;
4656 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4657 PRINT_WARN("ARP processing not supported "
4658 "on %s!\n", QETH_CARD_IFNAME(card));
4659 return -EOPNOTSUPP;
4660 }
4661 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4662 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4663 no_entries);
4664 if (rc) {
4665 tmp = rc;
4666 PRINT_WARN("Could not set number of ARP entries on %s: "
4667 "%s (0x%x/%d)\n",
4668 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4669 tmp, tmp);
4670 }
4671 return rc;
4672 }
4673
4674 static void
4675 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4676 struct qeth_arp_query_data *qdata,
4677 int entry_size, int uentry_size)
4678 {
4679 char *entry_ptr;
4680 char *uentry_ptr;
4681 int i;
4682
4683 entry_ptr = (char *)&qdata->data;
4684 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4685 for (i = 0; i < qdata->no_entries; ++i){
4686 /* strip off 32 bytes "media specific information" */
4687 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4688 entry_ptr += entry_size;
4689 uentry_ptr += uentry_size;
4690 }
4691 }
4692
4693 static int
4694 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4695 unsigned long data)
4696 {
4697 struct qeth_ipa_cmd *cmd;
4698 struct qeth_arp_query_data *qdata;
4699 struct qeth_arp_query_info *qinfo;
4700 int entry_size;
4701 int uentry_size;
4702 int i;
4703
4704 QETH_DBF_TEXT(trace,4,"arpquecb");
4705
4706 qinfo = (struct qeth_arp_query_info *) reply->param;
4707 cmd = (struct qeth_ipa_cmd *) data;
4708 if (cmd->hdr.return_code) {
4709 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4710 return 0;
4711 }
4712 if (cmd->data.setassparms.hdr.return_code) {
4713 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4714 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4715 return 0;
4716 }
4717 qdata = &cmd->data.setassparms.data.query_arp;
4718 switch(qdata->reply_bits){
4719 case 5:
4720 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4721 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4722 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4723 break;
4724 case 7:
4725 /* fall through to default */
4726 default:
4727 /* tr is the same as eth -> entry7 */
4728 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4729 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4730 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4731 break;
4732 }
4733 /* check if there is enough room in userspace */
4734 if ((qinfo->udata_len - qinfo->udata_offset) <
4735 qdata->no_entries * uentry_size){
4736 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4737 cmd->hdr.return_code = -ENOMEM;
4738 PRINT_WARN("query ARP user space buffer is too small for "
4739 "the returned number of ARP entries. "
4740 "Aborting query!\n");
4741 goto out_error;
4742 }
4743 QETH_DBF_TEXT_(trace, 4, "anore%i",
4744 cmd->data.setassparms.hdr.number_of_replies);
4745 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4746 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4747
4748 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4749 /* strip off "media specific information" */
4750 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4751 uentry_size);
4752 } else
4753 /*copy entries to user buffer*/
4754 memcpy(qinfo->udata + qinfo->udata_offset,
4755 (char *)&qdata->data, qdata->no_entries*uentry_size);
4756
4757 qinfo->no_entries += qdata->no_entries;
4758 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4759 /* check if all replies received ... */
4760 if (cmd->data.setassparms.hdr.seq_no <
4761 cmd->data.setassparms.hdr.number_of_replies)
4762 return 1;
4763 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4764 /* keep STRIP_ENTRIES flag so the user program can distinguish
4765 * stripped entries from normal ones */
4766 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4767 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4768 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4769 return 0;
4770 out_error:
4771 i = 0;
4772 memcpy(qinfo->udata, &i, 4);
4773 return 0;
4774 }
4775
4776 static int
4777 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4778 int len, int (*reply_cb)(struct qeth_card *,
4779 struct qeth_reply *,
4780 unsigned long),
4781 void *reply_param)
4782 {
4783 QETH_DBF_TEXT(trace,4,"sendarp");
4784
4785 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4786 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4787 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4788 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4789 reply_cb, reply_param);
4790 }
4791
4792 static int
4793 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4794 int len, int (*reply_cb)(struct qeth_card *,
4795 struct qeth_reply *,
4796 unsigned long),
4797 void *reply_param)
4798 {
4799 u16 s1, s2;
4800
4801 QETH_DBF_TEXT(trace,4,"sendsnmp");
4802
4803 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4804 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4805 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4806 /* adjust PDU length fields in IPA_PDU_HEADER */
4807 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4808 s2 = (u32) len;
4809 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4810 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4811 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4812 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4813 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4814 reply_cb, reply_param);
4815 }
4816
4817 static struct qeth_cmd_buffer *
4818 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4819 __u16, __u16, enum qeth_prot_versions);
4820 static int
4821 qeth_arp_query(struct qeth_card *card, char __user *udata)
4822 {
4823 struct qeth_cmd_buffer *iob;
4824 struct qeth_arp_query_info qinfo = {0, };
4825 int tmp;
4826 int rc;
4827
4828 QETH_DBF_TEXT(trace,3,"arpquery");
4829
4830 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4831 IPA_ARP_PROCESSING)) {
4832 PRINT_WARN("ARP processing not supported "
4833 "on %s!\n", QETH_CARD_IFNAME(card));
4834 return -EOPNOTSUPP;
4835 }
4836 /* get size of userspace buffer and mask_bits -> 6 bytes */
4837 if (copy_from_user(&qinfo, udata, 6))
4838 return -EFAULT;
4839 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4840 return -ENOMEM;
4841 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4842 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4843 IPA_CMD_ASS_ARP_QUERY_INFO,
4844 sizeof(int),QETH_PROT_IPV4);
4845
4846 rc = qeth_send_ipa_arp_cmd(card, iob,
4847 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4848 qeth_arp_query_cb, (void *)&qinfo);
4849 if (rc) {
4850 tmp = rc;
4851 PRINT_WARN("Error while querying ARP cache on %s: %s "
4852 "(0x%x/%d)\n",
4853 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4854 tmp, tmp);
4855 if (copy_to_user(udata, qinfo.udata, 4))
4856 rc = -EFAULT;
4857 } else {
4858 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4859 rc = -EFAULT;
4860 }
4861 kfree(qinfo.udata);
4862 return rc;
4863 }
4864
4865 /**
4866 * SNMP command callback
4867 */
4868 static int
4869 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4870 unsigned long sdata)
4871 {
4872 struct qeth_ipa_cmd *cmd;
4873 struct qeth_arp_query_info *qinfo;
4874 struct qeth_snmp_cmd *snmp;
4875 unsigned char *data;
4876 __u16 data_len;
4877
4878 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4879
4880 cmd = (struct qeth_ipa_cmd *) sdata;
4881 data = (unsigned char *)((char *)cmd - reply->offset);
4882 qinfo = (struct qeth_arp_query_info *) reply->param;
4883 snmp = &cmd->data.setadapterparms.data.snmp;
4884
4885 if (cmd->hdr.return_code) {
4886 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4887 return 0;
4888 }
4889 if (cmd->data.setadapterparms.hdr.return_code) {
4890 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4891 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4892 return 0;
4893 }
4894 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4895 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4896 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4897 else
4898 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4899
4900 /* check if there is enough room in userspace */
4901 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4902 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4903 cmd->hdr.return_code = -ENOMEM;
4904 return 0;
4905 }
4906 QETH_DBF_TEXT_(trace, 4, "snore%i",
4907 cmd->data.setadapterparms.hdr.used_total);
4908 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4909 /*copy entries to user buffer*/
4910 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4911 memcpy(qinfo->udata + qinfo->udata_offset,
4912 (char *)snmp,
4913 data_len + offsetof(struct qeth_snmp_cmd,data));
4914 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4915 } else {
4916 memcpy(qinfo->udata + qinfo->udata_offset,
4917 (char *)&snmp->request, data_len);
4918 }
4919 qinfo->udata_offset += data_len;
4920 /* check if all replies received ... */
4921 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4922 cmd->data.setadapterparms.hdr.used_total);
4923 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4924 cmd->data.setadapterparms.hdr.seq_no);
4925 if (cmd->data.setadapterparms.hdr.seq_no <
4926 cmd->data.setadapterparms.hdr.used_total)
4927 return 1;
4928 return 0;
4929 }
4930
4931 static struct qeth_cmd_buffer *
4932 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4933 enum qeth_prot_versions );
4934
4935 static struct qeth_cmd_buffer *
4936 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4937 {
4938 struct qeth_cmd_buffer *iob;
4939 struct qeth_ipa_cmd *cmd;
4940
4941 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4942 QETH_PROT_IPV4);
4943 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4944 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4945 cmd->data.setadapterparms.hdr.command_code = command;
4946 cmd->data.setadapterparms.hdr.used_total = 1;
4947 cmd->data.setadapterparms.hdr.seq_no = 1;
4948
4949 return iob;
4950 }
4951
4952 /**
4953 * function to send SNMP commands to OSA-E card
4954 */
4955 static int
4956 qeth_snmp_command(struct qeth_card *card, char __user *udata)
4957 {
4958 struct qeth_cmd_buffer *iob;
4959 struct qeth_ipa_cmd *cmd;
4960 struct qeth_snmp_ureq *ureq;
4961 int req_len;
4962 struct qeth_arp_query_info qinfo = {0, };
4963 int rc = 0;
4964
4965 QETH_DBF_TEXT(trace,3,"snmpcmd");
4966
4967 if (card->info.guestlan)
4968 return -EOPNOTSUPP;
4969
4970 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4971 (!card->options.layer2) ) {
4972 PRINT_WARN("SNMP Query MIBS not supported "
4973 "on %s!\n", QETH_CARD_IFNAME(card));
4974 return -EOPNOTSUPP;
4975 }
4976 /* skip 4 bytes (data_len struct member) to get req_len */
4977 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4978 return -EFAULT;
4979 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4980 if (!ureq) {
4981 QETH_DBF_TEXT(trace, 2, "snmpnome");
4982 return -ENOMEM;
4983 }
4984 if (copy_from_user(ureq, udata,
4985 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4986 kfree(ureq);
4987 return -EFAULT;
4988 }
4989 qinfo.udata_len = ureq->hdr.data_len;
4990 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
4991 kfree(ureq);
4992 return -ENOMEM;
4993 }
4994 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4995
4996 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4997 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4998 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4999 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5000 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5001 qeth_snmp_command_cb, (void *)&qinfo);
5002 if (rc)
5003 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5004 QETH_CARD_IFNAME(card), rc);
5005 else {
5006 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5007 rc = -EFAULT;
5008 }
5009
5010 kfree(ureq);
5011 kfree(qinfo.udata);
5012 return rc;
5013 }
5014
5015 static int
5016 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5017 unsigned long);
5018
5019 static int
5020 qeth_default_setadapterparms_cb(struct qeth_card *card,
5021 struct qeth_reply *reply,
5022 unsigned long data);
5023 static int
5024 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5025 __u16, long,
5026 int (*reply_cb)
5027 (struct qeth_card *, struct qeth_reply *, unsigned long),
5028 void *reply_param);
5029
5030 static int
5031 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5032 {
5033 struct qeth_cmd_buffer *iob;
5034 char buf[16];
5035 int tmp;
5036 int rc;
5037
5038 QETH_DBF_TEXT(trace,3,"arpadent");
5039
5040 /*
5041 * currently GuestLAN only supports the ARP assist function
5042 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5043 * thus we say EOPNOTSUPP for this ARP function
5044 */
5045 if (card->info.guestlan)
5046 return -EOPNOTSUPP;
5047 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5048 PRINT_WARN("ARP processing not supported "
5049 "on %s!\n", QETH_CARD_IFNAME(card));
5050 return -EOPNOTSUPP;
5051 }
5052
5053 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5054 IPA_CMD_ASS_ARP_ADD_ENTRY,
5055 sizeof(struct qeth_arp_cache_entry),
5056 QETH_PROT_IPV4);
5057 rc = qeth_send_setassparms(card, iob,
5058 sizeof(struct qeth_arp_cache_entry),
5059 (unsigned long) entry,
5060 qeth_default_setassparms_cb, NULL);
5061 if (rc) {
5062 tmp = rc;
5063 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5064 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5065 "%s (0x%x/%d)\n",
5066 buf, QETH_CARD_IFNAME(card),
5067 qeth_arp_get_error_cause(&rc), tmp, tmp);
5068 }
5069 return rc;
5070 }
5071
5072 static int
5073 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5074 {
5075 struct qeth_cmd_buffer *iob;
5076 char buf[16] = {0, };
5077 int tmp;
5078 int rc;
5079
5080 QETH_DBF_TEXT(trace,3,"arprment");
5081
5082 /*
5083 * currently GuestLAN only supports the ARP assist function
5084 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5085 * thus we say EOPNOTSUPP for this ARP function
5086 */
5087 if (card->info.guestlan)
5088 return -EOPNOTSUPP;
5089 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5090 PRINT_WARN("ARP processing not supported "
5091 "on %s!\n", QETH_CARD_IFNAME(card));
5092 return -EOPNOTSUPP;
5093 }
5094 memcpy(buf, entry, 12);
5095 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5096 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5097 12,
5098 QETH_PROT_IPV4);
5099 rc = qeth_send_setassparms(card, iob,
5100 12, (unsigned long)buf,
5101 qeth_default_setassparms_cb, NULL);
5102 if (rc) {
5103 tmp = rc;
5104 memset(buf, 0, 16);
5105 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5106 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5107 "%s (0x%x/%d)\n",
5108 buf, QETH_CARD_IFNAME(card),
5109 qeth_arp_get_error_cause(&rc), tmp, tmp);
5110 }
5111 return rc;
5112 }
5113
5114 static int
5115 qeth_arp_flush_cache(struct qeth_card *card)
5116 {
5117 int rc;
5118 int tmp;
5119
5120 QETH_DBF_TEXT(trace,3,"arpflush");
5121
5122 /*
5123 * currently GuestLAN only supports the ARP assist function
5124 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5125 * thus we say EOPNOTSUPP for this ARP function
5126 */
5127 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5128 return -EOPNOTSUPP;
5129 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5130 PRINT_WARN("ARP processing not supported "
5131 "on %s!\n", QETH_CARD_IFNAME(card));
5132 return -EOPNOTSUPP;
5133 }
5134 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5135 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5136 if (rc){
5137 tmp = rc;
5138 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5139 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5140 tmp, tmp);
5141 }
5142 return rc;
5143 }
5144
5145 static int
5146 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5147 {
5148 struct qeth_card *card = (struct qeth_card *)dev->priv;
5149 struct qeth_arp_cache_entry arp_entry;
5150 struct mii_ioctl_data *mii_data;
5151 int rc = 0;
5152
5153 if (!card)
5154 return -ENODEV;
5155
5156 if ((card->state != CARD_STATE_UP) &&
5157 (card->state != CARD_STATE_SOFTSETUP))
5158 return -ENODEV;
5159
5160 if (card->info.type == QETH_CARD_TYPE_OSN)
5161 return -EPERM;
5162
5163 switch (cmd){
5164 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5165 if ( !capable(CAP_NET_ADMIN) ||
5166 (card->options.layer2) ) {
5167 rc = -EPERM;
5168 break;
5169 }
5170 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5171 break;
5172 case SIOC_QETH_ARP_QUERY_INFO:
5173 if ( !capable(CAP_NET_ADMIN) ||
5174 (card->options.layer2) ) {
5175 rc = -EPERM;
5176 break;
5177 }
5178 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5179 break;
5180 case SIOC_QETH_ARP_ADD_ENTRY:
5181 if ( !capable(CAP_NET_ADMIN) ||
5182 (card->options.layer2) ) {
5183 rc = -EPERM;
5184 break;
5185 }
5186 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5187 sizeof(struct qeth_arp_cache_entry)))
5188 rc = -EFAULT;
5189 else
5190 rc = qeth_arp_add_entry(card, &arp_entry);
5191 break;
5192 case SIOC_QETH_ARP_REMOVE_ENTRY:
5193 if ( !capable(CAP_NET_ADMIN) ||
5194 (card->options.layer2) ) {
5195 rc = -EPERM;
5196 break;
5197 }
5198 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5199 sizeof(struct qeth_arp_cache_entry)))
5200 rc = -EFAULT;
5201 else
5202 rc = qeth_arp_remove_entry(card, &arp_entry);
5203 break;
5204 case SIOC_QETH_ARP_FLUSH_CACHE:
5205 if ( !capable(CAP_NET_ADMIN) ||
5206 (card->options.layer2) ) {
5207 rc = -EPERM;
5208 break;
5209 }
5210 rc = qeth_arp_flush_cache(card);
5211 break;
5212 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5213 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5214 break;
5215 case SIOC_QETH_GET_CARD_TYPE:
5216 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5217 !card->info.guestlan)
5218 return 1;
5219 return 0;
5220 break;
5221 case SIOCGMIIPHY:
5222 mii_data = if_mii(rq);
5223 mii_data->phy_id = 0;
5224 break;
5225 case SIOCGMIIREG:
5226 mii_data = if_mii(rq);
5227 if (mii_data->phy_id != 0)
5228 rc = -EINVAL;
5229 else
5230 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5231 mii_data->reg_num);
5232 break;
5233 default:
5234 rc = -EOPNOTSUPP;
5235 }
5236 if (rc)
5237 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5238 return rc;
5239 }
5240
5241 static struct net_device_stats *
5242 qeth_get_stats(struct net_device *dev)
5243 {
5244 struct qeth_card *card;
5245
5246 card = (struct qeth_card *) (dev->priv);
5247
5248 QETH_DBF_TEXT(trace,5,"getstat");
5249
5250 return &card->stats;
5251 }
5252
5253 static int
5254 qeth_change_mtu(struct net_device *dev, int new_mtu)
5255 {
5256 struct qeth_card *card;
5257 char dbf_text[15];
5258
5259 card = (struct qeth_card *) (dev->priv);
5260
5261 QETH_DBF_TEXT(trace,4,"chgmtu");
5262 sprintf(dbf_text, "%8x", new_mtu);
5263 QETH_DBF_TEXT(trace,4,dbf_text);
5264
5265 if (new_mtu < 64)
5266 return -EINVAL;
5267 if (new_mtu > 65535)
5268 return -EINVAL;
5269 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5270 (!qeth_mtu_is_valid(card, new_mtu)))
5271 return -EINVAL;
5272 dev->mtu = new_mtu;
5273 return 0;
5274 }
5275
5276 #ifdef CONFIG_QETH_VLAN
5277 static void
5278 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5279 {
5280 struct qeth_card *card;
5281 unsigned long flags;
5282
5283 QETH_DBF_TEXT(trace,4,"vlanreg");
5284
5285 card = (struct qeth_card *) dev->priv;
5286 spin_lock_irqsave(&card->vlanlock, flags);
5287 card->vlangrp = grp;
5288 spin_unlock_irqrestore(&card->vlanlock, flags);
5289 }
5290
5291 static void
5292 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5293 unsigned short vid)
5294 {
5295 int i;
5296 struct sk_buff *skb;
5297 struct sk_buff_head tmp_list;
5298
5299 skb_queue_head_init(&tmp_list);
5300 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5301 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5302 while ((skb = skb_dequeue(&buf->skb_list))){
5303 if (vlan_tx_tag_present(skb) &&
5304 (vlan_tx_tag_get(skb) == vid)) {
5305 atomic_dec(&skb->users);
5306 dev_kfree_skb(skb);
5307 } else
5308 skb_queue_tail(&tmp_list, skb);
5309 }
5310 }
5311 while ((skb = skb_dequeue(&tmp_list)))
5312 skb_queue_tail(&buf->skb_list, skb);
5313 }
5314
5315 static void
5316 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5317 {
5318 int i, j;
5319
5320 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5321 for (i = 0; i < card->qdio.no_out_queues; ++i){
5322 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5323 qeth_free_vlan_buffer(card, &card->qdio.
5324 out_qs[i]->bufs[j], vid);
5325 }
5326 }
5327
5328 static void
5329 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5330 {
5331 struct in_device *in_dev;
5332 struct in_ifaddr *ifa;
5333 struct qeth_ipaddr *addr;
5334
5335 QETH_DBF_TEXT(trace, 4, "frvaddr4");
5336
5337 rcu_read_lock();
5338 in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
5339 if (!in_dev)
5340 goto out;
5341 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5342 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5343 if (addr){
5344 addr->u.a4.addr = ifa->ifa_address;
5345 addr->u.a4.mask = ifa->ifa_mask;
5346 addr->type = QETH_IP_TYPE_NORMAL;
5347 if (!qeth_delete_ip(card, addr))
5348 kfree(addr);
5349 }
5350 }
5351 out:
5352 rcu_read_unlock();
5353 }
5354
5355 static void
5356 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5357 {
5358 #ifdef CONFIG_QETH_IPV6
5359 struct inet6_dev *in6_dev;
5360 struct inet6_ifaddr *ifa;
5361 struct qeth_ipaddr *addr;
5362
5363 QETH_DBF_TEXT(trace, 4, "frvaddr6");
5364
5365 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
5366 if (!in6_dev)
5367 return;
5368 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5369 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5370 if (addr){
5371 memcpy(&addr->u.a6.addr, &ifa->addr,
5372 sizeof(struct in6_addr));
5373 addr->u.a6.pfxlen = ifa->prefix_len;
5374 addr->type = QETH_IP_TYPE_NORMAL;
5375 if (!qeth_delete_ip(card, addr))
5376 kfree(addr);
5377 }
5378 }
5379 in6_dev_put(in6_dev);
5380 #endif /* CONFIG_QETH_IPV6 */
5381 }
5382
5383 static void
5384 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5385 {
5386 if (card->options.layer2 || !card->vlangrp)
5387 return;
5388 qeth_free_vlan_addresses4(card, vid);
5389 qeth_free_vlan_addresses6(card, vid);
5390 }
5391
5392 static int
5393 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5394 struct qeth_reply *reply,
5395 unsigned long data)
5396 {
5397 struct qeth_ipa_cmd *cmd;
5398
5399 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5400 cmd = (struct qeth_ipa_cmd *) data;
5401 if (cmd->hdr.return_code) {
5402 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5403 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5404 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5405 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5406 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5407 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5408 }
5409 return 0;
5410 }
5411
5412 static int
5413 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5414 enum qeth_ipa_cmds ipacmd)
5415 {
5416 struct qeth_ipa_cmd *cmd;
5417 struct qeth_cmd_buffer *iob;
5418
5419 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5420 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5421 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5422 cmd->data.setdelvlan.vlan_id = i;
5423 return qeth_send_ipa_cmd(card, iob,
5424 qeth_layer2_send_setdelvlan_cb, NULL);
5425 }
5426
5427 static void
5428 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5429 {
5430 unsigned short i;
5431
5432 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5433
5434 if (!card->vlangrp)
5435 return;
5436 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5437 if (vlan_group_get_device(card->vlangrp, i) == NULL)
5438 continue;
5439 if (clear)
5440 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5441 else
5442 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5443 }
5444 }
5445
5446 /*add_vid is layer 2 used only ....*/
5447 static void
5448 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5449 {
5450 struct qeth_card *card;
5451
5452 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5453
5454 card = (struct qeth_card *) dev->priv;
5455 if (!card->options.layer2)
5456 return;
5457 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5458 }
5459
5460 /*... kill_vid used for both modes*/
5461 static void
5462 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5463 {
5464 struct qeth_card *card;
5465 unsigned long flags;
5466
5467 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5468
5469 card = (struct qeth_card *) dev->priv;
5470 /* free all skbs for the vlan device */
5471 qeth_free_vlan_skbs(card, vid);
5472 spin_lock_irqsave(&card->vlanlock, flags);
5473 /* unregister IP addresses of vlan device */
5474 qeth_free_vlan_addresses(card, vid);
5475 vlan_group_set_device(card->vlangrp, vid, NULL);
5476 spin_unlock_irqrestore(&card->vlanlock, flags);
5477 if (card->options.layer2)
5478 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5479 qeth_set_multicast_list(card->dev);
5480 }
5481 #endif
5482 /**
5483 * Examine hardware response to SET_PROMISC_MODE
5484 */
5485 static int
5486 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5487 struct qeth_reply *reply,
5488 unsigned long data)
5489 {
5490 struct qeth_ipa_cmd *cmd;
5491 struct qeth_ipacmd_setadpparms *setparms;
5492
5493 QETH_DBF_TEXT(trace,4,"prmadpcb");
5494
5495 cmd = (struct qeth_ipa_cmd *) data;
5496 setparms = &(cmd->data.setadapterparms);
5497
5498 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5499 if (cmd->hdr.return_code) {
5500 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5501 setparms->data.mode = SET_PROMISC_MODE_OFF;
5502 }
5503 card->info.promisc_mode = setparms->data.mode;
5504 return 0;
5505 }
5506 /*
5507 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5508 */
5509 static void
5510 qeth_setadp_promisc_mode(struct qeth_card *card)
5511 {
5512 enum qeth_ipa_promisc_modes mode;
5513 struct net_device *dev = card->dev;
5514 struct qeth_cmd_buffer *iob;
5515 struct qeth_ipa_cmd *cmd;
5516
5517 QETH_DBF_TEXT(trace, 4, "setprom");
5518
5519 if (((dev->flags & IFF_PROMISC) &&
5520 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5521 (!(dev->flags & IFF_PROMISC) &&
5522 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5523 return;
5524 mode = SET_PROMISC_MODE_OFF;
5525 if (dev->flags & IFF_PROMISC)
5526 mode = SET_PROMISC_MODE_ON;
5527 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5528
5529 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5530 sizeof(struct qeth_ipacmd_setadpparms));
5531 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5532 cmd->data.setadapterparms.data.mode = mode;
5533 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5534 }
5535
5536 /**
5537 * set multicast address on card
5538 */
5539 static void
5540 qeth_set_multicast_list(struct net_device *dev)
5541 {
5542 struct qeth_card *card = (struct qeth_card *) dev->priv;
5543
5544 if (card->info.type == QETH_CARD_TYPE_OSN)
5545 return ;
5546
5547 QETH_DBF_TEXT(trace, 3, "setmulti");
5548 qeth_delete_mc_addresses(card);
5549 if (card->options.layer2) {
5550 qeth_layer2_add_multicast(card);
5551 goto out;
5552 }
5553 qeth_add_multicast_ipv4(card);
5554 #ifdef CONFIG_QETH_IPV6
5555 qeth_add_multicast_ipv6(card);
5556 #endif
5557 out:
5558 qeth_set_ip_addr_list(card);
5559 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5560 return;
5561 qeth_setadp_promisc_mode(card);
5562 }
5563
5564 static int
5565 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5566 {
5567 return 0;
5568 }
5569
5570 static void
5571 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5572 {
5573 if (dev->type == ARPHRD_IEEE802_TR)
5574 ip_tr_mc_map(ipm, mac);
5575 else
5576 ip_eth_mc_map(ipm, mac);
5577 }
5578
5579 static struct qeth_ipaddr *
5580 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5581 {
5582 struct qeth_ipaddr *addr;
5583
5584 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5585 if (addr == NULL) {
5586 PRINT_WARN("Not enough memory to add address\n");
5587 return NULL;
5588 }
5589 addr->type = QETH_IP_TYPE_NORMAL;
5590 addr->proto = prot;
5591 return addr;
5592 }
5593
5594 int
5595 qeth_osn_assist(struct net_device *dev,
5596 void *data,
5597 int data_len)
5598 {
5599 struct qeth_cmd_buffer *iob;
5600 struct qeth_card *card;
5601 int rc;
5602
5603 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5604 if (!dev)
5605 return -ENODEV;
5606 card = (struct qeth_card *)dev->priv;
5607 if (!card)
5608 return -ENODEV;
5609 if ((card->state != CARD_STATE_UP) &&
5610 (card->state != CARD_STATE_SOFTSETUP))
5611 return -ENODEV;
5612 iob = qeth_wait_for_buffer(&card->write);
5613 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5614 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5615 return rc;
5616 }
5617
5618 static struct net_device *
5619 qeth_netdev_by_devno(unsigned char *read_dev_no)
5620 {
5621 struct qeth_card *card;
5622 struct net_device *ndev;
5623 unsigned char *readno;
5624 __u16 temp_dev_no, card_dev_no;
5625 char *endp;
5626 unsigned long flags;
5627
5628 ndev = NULL;
5629 memcpy(&temp_dev_no, read_dev_no, 2);
5630 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5631 list_for_each_entry(card, &qeth_card_list.list, list) {
5632 readno = CARD_RDEV_ID(card);
5633 readno += (strlen(readno) - 4);
5634 card_dev_no = simple_strtoul(readno, &endp, 16);
5635 if (card_dev_no == temp_dev_no) {
5636 ndev = card->dev;
5637 break;
5638 }
5639 }
5640 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5641 return ndev;
5642 }
5643
5644 int
5645 qeth_osn_register(unsigned char *read_dev_no,
5646 struct net_device **dev,
5647 int (*assist_cb)(struct net_device *, void *),
5648 int (*data_cb)(struct sk_buff *))
5649 {
5650 struct qeth_card * card;
5651
5652 QETH_DBF_TEXT(trace, 2, "osnreg");
5653 *dev = qeth_netdev_by_devno(read_dev_no);
5654 if (*dev == NULL)
5655 return -ENODEV;
5656 card = (struct qeth_card *)(*dev)->priv;
5657 if (!card)
5658 return -ENODEV;
5659 if ((assist_cb == NULL) || (data_cb == NULL))
5660 return -EINVAL;
5661 card->osn_info.assist_cb = assist_cb;
5662 card->osn_info.data_cb = data_cb;
5663 return 0;
5664 }
5665
5666 void
5667 qeth_osn_deregister(struct net_device * dev)
5668 {
5669 struct qeth_card *card;
5670
5671 QETH_DBF_TEXT(trace, 2, "osndereg");
5672 if (!dev)
5673 return;
5674 card = (struct qeth_card *)dev->priv;
5675 if (!card)
5676 return;
5677 card->osn_info.assist_cb = NULL;
5678 card->osn_info.data_cb = NULL;
5679 return;
5680 }
5681
5682 static void
5683 qeth_delete_mc_addresses(struct qeth_card *card)
5684 {
5685 struct qeth_ipaddr *iptodo;
5686 unsigned long flags;
5687
5688 QETH_DBF_TEXT(trace,4,"delmc");
5689 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5690 if (!iptodo) {
5691 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5692 return;
5693 }
5694 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5695 spin_lock_irqsave(&card->ip_lock, flags);
5696 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5697 kfree(iptodo);
5698 spin_unlock_irqrestore(&card->ip_lock, flags);
5699 }
5700
5701 static void
5702 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5703 {
5704 struct qeth_ipaddr *ipm;
5705 struct ip_mc_list *im4;
5706 char buf[MAX_ADDR_LEN];
5707
5708 QETH_DBF_TEXT(trace,4,"addmc");
5709 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5710 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5711 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5712 if (!ipm)
5713 continue;
5714 ipm->u.a4.addr = im4->multiaddr;
5715 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5716 ipm->is_multicast = 1;
5717 if (!qeth_add_ip(card,ipm))
5718 kfree(ipm);
5719 }
5720 }
5721
5722 static inline void
5723 qeth_add_vlan_mc(struct qeth_card *card)
5724 {
5725 #ifdef CONFIG_QETH_VLAN
5726 struct in_device *in_dev;
5727 struct vlan_group *vg;
5728 int i;
5729
5730 QETH_DBF_TEXT(trace,4,"addmcvl");
5731 if ( ((card->options.layer2 == 0) &&
5732 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5733 (card->vlangrp == NULL) )
5734 return ;
5735
5736 vg = card->vlangrp;
5737 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5738 struct net_device *netdev = vlan_group_get_device(vg, i);
5739 if (netdev == NULL ||
5740 !(netdev->flags & IFF_UP))
5741 continue;
5742 in_dev = in_dev_get(netdev);
5743 if (!in_dev)
5744 continue;
5745 read_lock(&in_dev->mc_list_lock);
5746 qeth_add_mc(card,in_dev);
5747 read_unlock(&in_dev->mc_list_lock);
5748 in_dev_put(in_dev);
5749 }
5750 #endif
5751 }
5752
5753 static void
5754 qeth_add_multicast_ipv4(struct qeth_card *card)
5755 {
5756 struct in_device *in4_dev;
5757
5758 QETH_DBF_TEXT(trace,4,"chkmcv4");
5759 in4_dev = in_dev_get(card->dev);
5760 if (in4_dev == NULL)
5761 return;
5762 read_lock(&in4_dev->mc_list_lock);
5763 qeth_add_mc(card, in4_dev);
5764 qeth_add_vlan_mc(card);
5765 read_unlock(&in4_dev->mc_list_lock);
5766 in_dev_put(in4_dev);
5767 }
5768
5769 static void
5770 qeth_layer2_add_multicast(struct qeth_card *card)
5771 {
5772 struct qeth_ipaddr *ipm;
5773 struct dev_mc_list *dm;
5774
5775 QETH_DBF_TEXT(trace,4,"L2addmc");
5776 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5777 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5778 if (!ipm)
5779 continue;
5780 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5781 ipm->is_multicast = 1;
5782 if (!qeth_add_ip(card, ipm))
5783 kfree(ipm);
5784 }
5785 }
5786
5787 #ifdef CONFIG_QETH_IPV6
5788 static void
5789 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5790 {
5791 struct qeth_ipaddr *ipm;
5792 struct ifmcaddr6 *im6;
5793 char buf[MAX_ADDR_LEN];
5794
5795 QETH_DBF_TEXT(trace,4,"addmc6");
5796 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5797 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5798 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5799 if (!ipm)
5800 continue;
5801 ipm->is_multicast = 1;
5802 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5803 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5804 sizeof(struct in6_addr));
5805 if (!qeth_add_ip(card,ipm))
5806 kfree(ipm);
5807 }
5808 }
5809
5810 static inline void
5811 qeth_add_vlan_mc6(struct qeth_card *card)
5812 {
5813 #ifdef CONFIG_QETH_VLAN
5814 struct inet6_dev *in_dev;
5815 struct vlan_group *vg;
5816 int i;
5817
5818 QETH_DBF_TEXT(trace,4,"admc6vl");
5819 if ( ((card->options.layer2 == 0) &&
5820 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5821 (card->vlangrp == NULL))
5822 return ;
5823
5824 vg = card->vlangrp;
5825 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5826 struct net_device *netdev = vlan_group_get_device(vg, i);
5827 if (netdev == NULL ||
5828 !(netdev->flags & IFF_UP))
5829 continue;
5830 in_dev = in6_dev_get(netdev);
5831 if (!in_dev)
5832 continue;
5833 read_lock(&in_dev->lock);
5834 qeth_add_mc6(card,in_dev);
5835 read_unlock(&in_dev->lock);
5836 in6_dev_put(in_dev);
5837 }
5838 #endif /* CONFIG_QETH_VLAN */
5839 }
5840
5841 static void
5842 qeth_add_multicast_ipv6(struct qeth_card *card)
5843 {
5844 struct inet6_dev *in6_dev;
5845
5846 QETH_DBF_TEXT(trace,4,"chkmcv6");
5847 if (!qeth_is_supported(card, IPA_IPV6))
5848 return ;
5849 in6_dev = in6_dev_get(card->dev);
5850 if (in6_dev == NULL)
5851 return;
5852 read_lock(&in6_dev->lock);
5853 qeth_add_mc6(card, in6_dev);
5854 qeth_add_vlan_mc6(card);
5855 read_unlock(&in6_dev->lock);
5856 in6_dev_put(in6_dev);
5857 }
5858 #endif /* CONFIG_QETH_IPV6 */
5859
5860 static int
5861 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5862 enum qeth_ipa_cmds ipacmd,
5863 int (*reply_cb) (struct qeth_card *,
5864 struct qeth_reply*,
5865 unsigned long))
5866 {
5867 struct qeth_ipa_cmd *cmd;
5868 struct qeth_cmd_buffer *iob;
5869
5870 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5871 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5872 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5873 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5874 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5875 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5876 }
5877
5878 static int
5879 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5880 struct qeth_reply *reply,
5881 unsigned long data)
5882 {
5883 struct qeth_ipa_cmd *cmd;
5884 __u8 *mac;
5885
5886 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5887 cmd = (struct qeth_ipa_cmd *) data;
5888 mac = &cmd->data.setdelmac.mac[0];
5889 /* MAC already registered, needed in couple/uncouple case */
5890 if (cmd->hdr.return_code == 0x2005) {
5891 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5892 "already existing on %s \n",
5893 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5894 QETH_CARD_IFNAME(card));
5895 cmd->hdr.return_code = 0;
5896 }
5897 if (cmd->hdr.return_code)
5898 PRINT_ERR("Could not set group MAC " \
5899 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5900 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5901 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5902 return 0;
5903 }
5904
5905 static int
5906 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5907 {
5908 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5909 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5910 qeth_layer2_send_setgroupmac_cb);
5911 }
5912
5913 static int
5914 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5915 struct qeth_reply *reply,
5916 unsigned long data)
5917 {
5918 struct qeth_ipa_cmd *cmd;
5919 __u8 *mac;
5920
5921 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5922 cmd = (struct qeth_ipa_cmd *) data;
5923 mac = &cmd->data.setdelmac.mac[0];
5924 if (cmd->hdr.return_code)
5925 PRINT_ERR("Could not delete group MAC " \
5926 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5927 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5928 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5929 return 0;
5930 }
5931
5932 static int
5933 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5934 {
5935 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5936 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5937 qeth_layer2_send_delgroupmac_cb);
5938 }
5939
5940 static int
5941 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5942 struct qeth_reply *reply,
5943 unsigned long data)
5944 {
5945 struct qeth_ipa_cmd *cmd;
5946
5947 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5948 cmd = (struct qeth_ipa_cmd *) data;
5949 if (cmd->hdr.return_code) {
5950 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5951 PRINT_WARN("Error in registering MAC address on " \
5952 "device %s: x%x\n", CARD_BUS_ID(card),
5953 cmd->hdr.return_code);
5954 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5955 cmd->hdr.return_code = -EIO;
5956 } else {
5957 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5958 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5959 OSA_ADDR_LEN);
5960 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5961 "successfully registered on device %s\n",
5962 card->dev->dev_addr[0], card->dev->dev_addr[1],
5963 card->dev->dev_addr[2], card->dev->dev_addr[3],
5964 card->dev->dev_addr[4], card->dev->dev_addr[5],
5965 card->dev->name);
5966 }
5967 return 0;
5968 }
5969
5970 static int
5971 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5972 {
5973 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5974 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5975 qeth_layer2_send_setmac_cb);
5976 }
5977
5978 static int
5979 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5980 struct qeth_reply *reply,
5981 unsigned long data)
5982 {
5983 struct qeth_ipa_cmd *cmd;
5984
5985 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5986 cmd = (struct qeth_ipa_cmd *) data;
5987 if (cmd->hdr.return_code) {
5988 PRINT_WARN("Error in deregistering MAC address on " \
5989 "device %s: x%x\n", CARD_BUS_ID(card),
5990 cmd->hdr.return_code);
5991 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5992 cmd->hdr.return_code = -EIO;
5993 return 0;
5994 }
5995 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5996
5997 return 0;
5998 }
5999 static int
6000 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6001 {
6002 QETH_DBF_TEXT(trace, 2, "L2Delmac");
6003 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6004 return 0;
6005 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6006 qeth_layer2_send_delmac_cb);
6007 }
6008
6009 static int
6010 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6011 {
6012 struct sockaddr *addr = p;
6013 struct qeth_card *card;
6014 int rc = 0;
6015
6016 QETH_DBF_TEXT(trace, 3, "setmac");
6017
6018 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6019 QETH_DBF_TEXT(trace, 3, "setmcINV");
6020 return -EOPNOTSUPP;
6021 }
6022 card = (struct qeth_card *) dev->priv;
6023
6024 if (!card->options.layer2) {
6025 PRINT_WARN("Setting MAC address on %s is not supported "
6026 "in Layer 3 mode.\n", dev->name);
6027 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6028 return -EOPNOTSUPP;
6029 }
6030 if (card->info.type == QETH_CARD_TYPE_OSN) {
6031 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6032 dev->name);
6033 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6034 return -EOPNOTSUPP;
6035 }
6036 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6037 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6038 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6039 if (!rc)
6040 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6041 return rc;
6042 }
6043
6044 static void
6045 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6046 __u8 command, enum qeth_prot_versions prot)
6047 {
6048 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6049 cmd->hdr.command = command;
6050 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6051 cmd->hdr.seqno = card->seqno.ipa;
6052 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6053 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6054 if (card->options.layer2)
6055 cmd->hdr.prim_version_no = 2;
6056 else
6057 cmd->hdr.prim_version_no = 1;
6058 cmd->hdr.param_count = 1;
6059 cmd->hdr.prot_version = prot;
6060 cmd->hdr.ipa_supported = 0;
6061 cmd->hdr.ipa_enabled = 0;
6062 }
6063
6064 static struct qeth_cmd_buffer *
6065 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6066 enum qeth_prot_versions prot)
6067 {
6068 struct qeth_cmd_buffer *iob;
6069 struct qeth_ipa_cmd *cmd;
6070
6071 iob = qeth_wait_for_buffer(&card->write);
6072 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6073 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6074
6075 return iob;
6076 }
6077
6078 static int
6079 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6080 {
6081 int rc;
6082 struct qeth_cmd_buffer *iob;
6083 struct qeth_ipa_cmd *cmd;
6084
6085 QETH_DBF_TEXT(trace,4,"setdelmc");
6086
6087 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6088 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6089 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6090 if (addr->proto == QETH_PROT_IPV6)
6091 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6092 sizeof(struct in6_addr));
6093 else
6094 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6095
6096 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6097
6098 return rc;
6099 }
6100 static void
6101 qeth_fill_netmask(u8 *netmask, unsigned int len)
6102 {
6103 int i,j;
6104 for (i=0;i<16;i++) {
6105 j=(len)-(i*8);
6106 if (j >= 8)
6107 netmask[i] = 0xff;
6108 else if (j > 0)
6109 netmask[i] = (u8)(0xFF00>>j);
6110 else
6111 netmask[i] = 0;
6112 }
6113 }
6114
6115 static int
6116 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6117 int ipacmd, unsigned int flags)
6118 {
6119 int rc;
6120 struct qeth_cmd_buffer *iob;
6121 struct qeth_ipa_cmd *cmd;
6122 __u8 netmask[16];
6123
6124 QETH_DBF_TEXT(trace,4,"setdelip");
6125 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6126
6127 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6128 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6129 if (addr->proto == QETH_PROT_IPV6) {
6130 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6131 sizeof(struct in6_addr));
6132 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6133 memcpy(cmd->data.setdelip6.mask, netmask,
6134 sizeof(struct in6_addr));
6135 cmd->data.setdelip6.flags = flags;
6136 } else {
6137 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6138 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6139 cmd->data.setdelip4.flags = flags;
6140 }
6141
6142 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6143
6144 return rc;
6145 }
6146
6147 static int
6148 qeth_layer2_register_addr_entry(struct qeth_card *card,
6149 struct qeth_ipaddr *addr)
6150 {
6151 if (!addr->is_multicast)
6152 return 0;
6153 QETH_DBF_TEXT(trace, 2, "setgmac");
6154 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6155 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6156 }
6157
6158 static int
6159 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6160 struct qeth_ipaddr *addr)
6161 {
6162 if (!addr->is_multicast)
6163 return 0;
6164 QETH_DBF_TEXT(trace, 2, "delgmac");
6165 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6166 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6167 }
6168
6169 static int
6170 qeth_layer3_register_addr_entry(struct qeth_card *card,
6171 struct qeth_ipaddr *addr)
6172 {
6173 char buf[50];
6174 int rc;
6175 int cnt = 3;
6176
6177 if (addr->proto == QETH_PROT_IPV4) {
6178 QETH_DBF_TEXT(trace, 2,"setaddr4");
6179 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6180 } else if (addr->proto == QETH_PROT_IPV6) {
6181 QETH_DBF_TEXT(trace, 2, "setaddr6");
6182 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6183 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6184 } else {
6185 QETH_DBF_TEXT(trace, 2, "setaddr?");
6186 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6187 }
6188 do {
6189 if (addr->is_multicast)
6190 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6191 else
6192 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6193 addr->set_flags);
6194 if (rc)
6195 QETH_DBF_TEXT(trace, 2, "failed");
6196 } while ((--cnt > 0) && rc);
6197 if (rc){
6198 QETH_DBF_TEXT(trace, 2, "FAILED");
6199 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6200 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6201 buf, rc, rc);
6202 }
6203 return rc;
6204 }
6205
6206 static int
6207 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6208 struct qeth_ipaddr *addr)
6209 {
6210 //char buf[50];
6211 int rc;
6212
6213 if (addr->proto == QETH_PROT_IPV4) {
6214 QETH_DBF_TEXT(trace, 2,"deladdr4");
6215 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6216 } else if (addr->proto == QETH_PROT_IPV6) {
6217 QETH_DBF_TEXT(trace, 2, "deladdr6");
6218 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6219 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6220 } else {
6221 QETH_DBF_TEXT(trace, 2, "deladdr?");
6222 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6223 }
6224 if (addr->is_multicast)
6225 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6226 else
6227 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6228 addr->del_flags);
6229 if (rc) {
6230 QETH_DBF_TEXT(trace, 2, "failed");
6231 /* TODO: re-activate this warning as soon as we have a
6232 * clean mirco code
6233 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6234 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6235 buf, rc);
6236 */
6237 }
6238 return rc;
6239 }
6240
6241 static int
6242 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6243 {
6244 if (card->options.layer2)
6245 return qeth_layer2_register_addr_entry(card, addr);
6246
6247 return qeth_layer3_register_addr_entry(card, addr);
6248 }
6249
6250 static int
6251 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6252 {
6253 if (card->options.layer2)
6254 return qeth_layer2_deregister_addr_entry(card, addr);
6255
6256 return qeth_layer3_deregister_addr_entry(card, addr);
6257 }
6258
6259 static u32
6260 qeth_ethtool_get_tx_csum(struct net_device *dev)
6261 {
6262 /* We may need to say that we support tx csum offload if
6263 * we do EDDP or TSO. There are discussions going on to
6264 * enforce rules in the stack and in ethtool that make
6265 * SG and TSO depend on HW_CSUM. At the moment there are
6266 * no such rules....
6267 * If we say yes here, we have to checksum outbound packets
6268 * any time. */
6269 return 0;
6270 }
6271
6272 static int
6273 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6274 {
6275 return -EINVAL;
6276 }
6277
6278 static u32
6279 qeth_ethtool_get_rx_csum(struct net_device *dev)
6280 {
6281 struct qeth_card *card = (struct qeth_card *)dev->priv;
6282
6283 return (card->options.checksum_type == HW_CHECKSUMMING);
6284 }
6285
6286 static int
6287 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6288 {
6289 struct qeth_card *card = (struct qeth_card *)dev->priv;
6290
6291 if ((card->state != CARD_STATE_DOWN) &&
6292 (card->state != CARD_STATE_RECOVER))
6293 return -EPERM;
6294 if (data)
6295 card->options.checksum_type = HW_CHECKSUMMING;
6296 else
6297 card->options.checksum_type = SW_CHECKSUMMING;
6298 return 0;
6299 }
6300
6301 static u32
6302 qeth_ethtool_get_sg(struct net_device *dev)
6303 {
6304 struct qeth_card *card = (struct qeth_card *)dev->priv;
6305
6306 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6307 (dev->features & NETIF_F_SG));
6308 }
6309
6310 static int
6311 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6312 {
6313 struct qeth_card *card = (struct qeth_card *)dev->priv;
6314
6315 if (data) {
6316 if (card->options.large_send != QETH_LARGE_SEND_NO)
6317 dev->features |= NETIF_F_SG;
6318 else {
6319 dev->features &= ~NETIF_F_SG;
6320 return -EINVAL;
6321 }
6322 } else
6323 dev->features &= ~NETIF_F_SG;
6324 return 0;
6325 }
6326
6327 static u32
6328 qeth_ethtool_get_tso(struct net_device *dev)
6329 {
6330 struct qeth_card *card = (struct qeth_card *)dev->priv;
6331
6332 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6333 (dev->features & NETIF_F_TSO));
6334 }
6335
6336 static int
6337 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6338 {
6339 struct qeth_card *card = (struct qeth_card *)dev->priv;
6340
6341 if (data) {
6342 if (card->options.large_send != QETH_LARGE_SEND_NO)
6343 dev->features |= NETIF_F_TSO;
6344 else {
6345 dev->features &= ~NETIF_F_TSO;
6346 return -EINVAL;
6347 }
6348 } else
6349 dev->features &= ~NETIF_F_TSO;
6350 return 0;
6351 }
6352
6353 static struct ethtool_ops qeth_ethtool_ops = {
6354 .get_tx_csum = qeth_ethtool_get_tx_csum,
6355 .set_tx_csum = qeth_ethtool_set_tx_csum,
6356 .get_rx_csum = qeth_ethtool_get_rx_csum,
6357 .set_rx_csum = qeth_ethtool_set_rx_csum,
6358 .get_sg = qeth_ethtool_get_sg,
6359 .set_sg = qeth_ethtool_set_sg,
6360 .get_tso = qeth_ethtool_get_tso,
6361 .set_tso = qeth_ethtool_set_tso,
6362 };
6363
6364 static int
6365 qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6366 {
6367 struct qeth_card *card;
6368 struct ethhdr *eth;
6369
6370 card = qeth_get_card_from_dev(skb->dev);
6371 if (card->options.layer2)
6372 goto haveheader;
6373 #ifdef CONFIG_QETH_IPV6
6374 /* cause of the manipulated arp constructor and the ARP
6375 flag for OSAE devices we have some nasty exceptions */
6376 if (card->info.type == QETH_CARD_TYPE_OSAE) {
6377 if (!card->options.fake_ll) {
6378 if ((skb->pkt_type==PACKET_OUTGOING) &&
6379 (skb->protocol==ETH_P_IPV6))
6380 goto haveheader;
6381 else
6382 return 0;
6383 } else {
6384 if ((skb->pkt_type==PACKET_OUTGOING) &&
6385 (skb->protocol==ETH_P_IP))
6386 return 0;
6387 else
6388 goto haveheader;
6389 }
6390 }
6391 #endif
6392 if (!card->options.fake_ll)
6393 return 0;
6394 haveheader:
6395 eth = eth_hdr(skb);
6396 memcpy(haddr, eth->h_source, ETH_ALEN);
6397 return ETH_ALEN;
6398 }
6399
6400 static int
6401 qeth_netdev_init(struct net_device *dev)
6402 {
6403 struct qeth_card *card;
6404
6405 card = (struct qeth_card *) dev->priv;
6406
6407 QETH_DBF_TEXT(trace,3,"initdev");
6408
6409 dev->tx_timeout = &qeth_tx_timeout;
6410 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6411 dev->open = qeth_open;
6412 dev->stop = qeth_stop;
6413 dev->hard_start_xmit = qeth_hard_start_xmit;
6414 dev->do_ioctl = qeth_do_ioctl;
6415 dev->get_stats = qeth_get_stats;
6416 dev->change_mtu = qeth_change_mtu;
6417 dev->neigh_setup = qeth_neigh_setup;
6418 dev->set_multicast_list = qeth_set_multicast_list;
6419 #ifdef CONFIG_QETH_VLAN
6420 dev->vlan_rx_register = qeth_vlan_rx_register;
6421 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6422 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6423 #endif
6424 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6425 dev->rebuild_header = NULL;
6426 dev->hard_header = NULL;
6427 dev->header_cache_update = NULL;
6428 dev->hard_header_cache = NULL;
6429 }
6430 #ifdef CONFIG_QETH_IPV6
6431 /*IPv6 address autoconfiguration stuff*/
6432 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6433 card->dev->dev_id = card->info.unique_id & 0xffff;
6434 #endif
6435 if (card->options.fake_ll &&
6436 (qeth_get_netdev_flags(card) & IFF_NOARP))
6437 dev->hard_header = qeth_fake_header;
6438 if (dev->type == ARPHRD_IEEE802_TR)
6439 dev->hard_header_parse = NULL;
6440 else
6441 dev->hard_header_parse = qeth_hard_header_parse;
6442 dev->set_mac_address = qeth_layer2_set_mac_address;
6443 dev->flags |= qeth_get_netdev_flags(card);
6444 if ((card->options.fake_broadcast) ||
6445 (card->info.broadcast_capable))
6446 dev->flags |= IFF_BROADCAST;
6447 dev->hard_header_len =
6448 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6449 dev->addr_len = OSA_ADDR_LEN;
6450 dev->mtu = card->info.initial_mtu;
6451 if (card->info.type != QETH_CARD_TYPE_OSN)
6452 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6453 SET_MODULE_OWNER(dev);
6454 return 0;
6455 }
6456
6457 static void
6458 qeth_init_func_level(struct qeth_card *card)
6459 {
6460 if (card->ipato.enabled) {
6461 if (card->info.type == QETH_CARD_TYPE_IQD)
6462 card->info.func_level =
6463 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6464 else
6465 card->info.func_level =
6466 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6467 } else {
6468 if (card->info.type == QETH_CARD_TYPE_IQD)
6469 /*FIXME:why do we have same values for dis and ena for osae??? */
6470 card->info.func_level =
6471 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6472 else
6473 card->info.func_level =
6474 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6475 }
6476 }
6477
6478 /**
6479 * hardsetup card, initialize MPC and QDIO stuff
6480 */
6481 static int
6482 qeth_hardsetup_card(struct qeth_card *card)
6483 {
6484 int retries = 3;
6485 int rc;
6486
6487 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6488
6489 retry:
6490 if (retries < 3){
6491 PRINT_WARN("Retrying to do IDX activates.\n");
6492 ccw_device_set_offline(CARD_DDEV(card));
6493 ccw_device_set_offline(CARD_WDEV(card));
6494 ccw_device_set_offline(CARD_RDEV(card));
6495 ccw_device_set_online(CARD_RDEV(card));
6496 ccw_device_set_online(CARD_WDEV(card));
6497 ccw_device_set_online(CARD_DDEV(card));
6498 }
6499 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6500 if (rc == -ERESTARTSYS) {
6501 QETH_DBF_TEXT(setup, 2, "break1");
6502 return rc;
6503 } else if (rc) {
6504 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6505 if (--retries < 0)
6506 goto out;
6507 else
6508 goto retry;
6509 }
6510 if ((rc = qeth_get_unitaddr(card))){
6511 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6512 return rc;
6513 }
6514 qeth_init_tokens(card);
6515 qeth_init_func_level(card);
6516 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6517 if (rc == -ERESTARTSYS) {
6518 QETH_DBF_TEXT(setup, 2, "break2");
6519 return rc;
6520 } else if (rc) {
6521 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6522 if (--retries < 0)
6523 goto out;
6524 else
6525 goto retry;
6526 }
6527 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6528 if (rc == -ERESTARTSYS) {
6529 QETH_DBF_TEXT(setup, 2, "break3");
6530 return rc;
6531 } else if (rc) {
6532 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6533 if (--retries < 0)
6534 goto out;
6535 else
6536 goto retry;
6537 }
6538 if ((rc = qeth_mpc_initialize(card))){
6539 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6540 goto out;
6541 }
6542 /*network device will be recovered*/
6543 if (card->dev) {
6544 card->dev->hard_header = card->orig_hard_header;
6545 if (card->options.fake_ll &&
6546 (qeth_get_netdev_flags(card) & IFF_NOARP))
6547 card->dev->hard_header = qeth_fake_header;
6548 return 0;
6549 }
6550 /* at first set_online allocate netdev */
6551 card->dev = qeth_get_netdevice(card->info.type,
6552 card->info.link_type);
6553 if (!card->dev){
6554 qeth_qdio_clear_card(card, card->info.type !=
6555 QETH_CARD_TYPE_IQD);
6556 rc = -ENODEV;
6557 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6558 goto out;
6559 }
6560 card->dev->priv = card;
6561 card->orig_hard_header = card->dev->hard_header;
6562 card->dev->type = qeth_get_arphdr_type(card->info.type,
6563 card->info.link_type);
6564 card->dev->init = qeth_netdev_init;
6565 return 0;
6566 out:
6567 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6568 return rc;
6569 }
6570
6571 static int
6572 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6573 unsigned long data)
6574 {
6575 struct qeth_ipa_cmd *cmd;
6576
6577 QETH_DBF_TEXT(trace,4,"defadpcb");
6578
6579 cmd = (struct qeth_ipa_cmd *) data;
6580 if (cmd->hdr.return_code == 0){
6581 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6582 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6583 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6584 #ifdef CONFIG_QETH_IPV6
6585 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6586 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6587 #endif
6588 }
6589 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6590 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6591 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6592 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6593 }
6594 return 0;
6595 }
6596
6597 static int
6598 qeth_default_setadapterparms_cb(struct qeth_card *card,
6599 struct qeth_reply *reply,
6600 unsigned long data)
6601 {
6602 struct qeth_ipa_cmd *cmd;
6603
6604 QETH_DBF_TEXT(trace,4,"defadpcb");
6605
6606 cmd = (struct qeth_ipa_cmd *) data;
6607 if (cmd->hdr.return_code == 0)
6608 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6609 return 0;
6610 }
6611
6612
6613
6614 static int
6615 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6616 unsigned long data)
6617 {
6618 struct qeth_ipa_cmd *cmd;
6619
6620 QETH_DBF_TEXT(trace,3,"quyadpcb");
6621
6622 cmd = (struct qeth_ipa_cmd *) data;
6623 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6624 card->info.link_type =
6625 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6626 card->options.adp.supported_funcs =
6627 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6628 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6629 }
6630
6631 static int
6632 qeth_query_setadapterparms(struct qeth_card *card)
6633 {
6634 int rc;
6635 struct qeth_cmd_buffer *iob;
6636
6637 QETH_DBF_TEXT(trace,3,"queryadp");
6638 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6639 sizeof(struct qeth_ipacmd_setadpparms));
6640 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6641 return rc;
6642 }
6643
6644 static int
6645 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6646 struct qeth_reply *reply,
6647 unsigned long data)
6648 {
6649 struct qeth_ipa_cmd *cmd;
6650
6651 QETH_DBF_TEXT(trace,4,"chgmaccb");
6652
6653 cmd = (struct qeth_ipa_cmd *) data;
6654 if (!card->options.layer2 || card->info.guestlan ||
6655 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6656 memcpy(card->dev->dev_addr,
6657 &cmd->data.setadapterparms.data.change_addr.addr,
6658 OSA_ADDR_LEN);
6659 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6660 }
6661 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6662 return 0;
6663 }
6664
6665 static int
6666 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6667 {
6668 int rc;
6669 struct qeth_cmd_buffer *iob;
6670 struct qeth_ipa_cmd *cmd;
6671
6672 QETH_DBF_TEXT(trace,4,"chgmac");
6673
6674 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6675 sizeof(struct qeth_ipacmd_setadpparms));
6676 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6677 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6678 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6679 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6680 card->dev->dev_addr, OSA_ADDR_LEN);
6681 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6682 NULL);
6683 return rc;
6684 }
6685
6686 static int
6687 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6688 {
6689 int rc;
6690 struct qeth_cmd_buffer *iob;
6691 struct qeth_ipa_cmd *cmd;
6692
6693 QETH_DBF_TEXT(trace,4,"adpmode");
6694
6695 iob = qeth_get_adapter_cmd(card, command,
6696 sizeof(struct qeth_ipacmd_setadpparms));
6697 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6698 cmd->data.setadapterparms.data.mode = mode;
6699 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6700 NULL);
6701 return rc;
6702 }
6703
6704 static int
6705 qeth_setadapter_hstr(struct qeth_card *card)
6706 {
6707 int rc;
6708
6709 QETH_DBF_TEXT(trace,4,"adphstr");
6710
6711 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6712 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6713 card->options.broadcast_mode);
6714 if (rc)
6715 PRINT_WARN("couldn't set broadcast mode on "
6716 "device %s: x%x\n",
6717 CARD_BUS_ID(card), rc);
6718 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6719 card->options.macaddr_mode);
6720 if (rc)
6721 PRINT_WARN("couldn't set macaddr mode on "
6722 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6723 return rc;
6724 }
6725 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6726 PRINT_WARN("set adapter parameters not available "
6727 "to set broadcast mode, using ALLRINGS "
6728 "on device %s:\n", CARD_BUS_ID(card));
6729 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6730 PRINT_WARN("set adapter parameters not available "
6731 "to set macaddr mode, using NONCANONICAL "
6732 "on device %s:\n", CARD_BUS_ID(card));
6733 return 0;
6734 }
6735
6736 static int
6737 qeth_setadapter_parms(struct qeth_card *card)
6738 {
6739 int rc;
6740
6741 QETH_DBF_TEXT(setup, 2, "setadprm");
6742
6743 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6744 PRINT_WARN("set adapter parameters not supported "
6745 "on device %s.\n",
6746 CARD_BUS_ID(card));
6747 QETH_DBF_TEXT(setup, 2, " notsupp");
6748 return 0;
6749 }
6750 rc = qeth_query_setadapterparms(card);
6751 if (rc) {
6752 PRINT_WARN("couldn't set adapter parameters on device %s: "
6753 "x%x\n", CARD_BUS_ID(card), rc);
6754 return rc;
6755 }
6756 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6757 rc = qeth_setadpparms_change_macaddr(card);
6758 if (rc)
6759 PRINT_WARN("couldn't get MAC address on "
6760 "device %s: x%x\n",
6761 CARD_BUS_ID(card), rc);
6762 }
6763
6764 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6765 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6766 rc = qeth_setadapter_hstr(card);
6767
6768 return rc;
6769 }
6770
6771 static int
6772 qeth_layer2_initialize(struct qeth_card *card)
6773 {
6774 int rc = 0;
6775
6776
6777 QETH_DBF_TEXT(setup, 2, "doL2init");
6778 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6779
6780 rc = qeth_query_setadapterparms(card);
6781 if (rc) {
6782 PRINT_WARN("could not query adapter parameters on device %s: "
6783 "x%x\n", CARD_BUS_ID(card), rc);
6784 }
6785
6786 rc = qeth_setadpparms_change_macaddr(card);
6787 if (rc) {
6788 PRINT_WARN("couldn't get MAC address on "
6789 "device %s: x%x\n",
6790 CARD_BUS_ID(card), rc);
6791 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6792 return rc;
6793 }
6794 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6795
6796 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6797 if (rc)
6798 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6799 return 0;
6800 }
6801
6802
6803 static int
6804 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6805 enum qeth_prot_versions prot)
6806 {
6807 int rc;
6808 struct qeth_cmd_buffer *iob;
6809
6810 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6811 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6812
6813 return rc;
6814 }
6815
6816 static int
6817 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6818 {
6819 int rc;
6820
6821 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6822
6823 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6824 return rc;
6825 }
6826
6827 static int
6828 qeth_send_stoplan(struct qeth_card *card)
6829 {
6830 int rc = 0;
6831
6832 /*
6833 * TODO: according to the IPA format document page 14,
6834 * TCP/IP (we!) never issue a STOPLAN
6835 * is this right ?!?
6836 */
6837 QETH_DBF_TEXT(trace, 2, "stoplan");
6838
6839 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6840 return rc;
6841 }
6842
6843 static int
6844 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6845 unsigned long data)
6846 {
6847 struct qeth_ipa_cmd *cmd;
6848
6849 QETH_DBF_TEXT(setup, 2, "qipasscb");
6850
6851 cmd = (struct qeth_ipa_cmd *) data;
6852 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6853 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6854 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6855 /* Disable IPV6 support hard coded for Hipersockets */
6856 if(card->info.type == QETH_CARD_TYPE_IQD)
6857 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6858 } else {
6859 #ifdef CONFIG_QETH_IPV6
6860 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6861 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6862 #endif
6863 }
6864 QETH_DBF_TEXT(setup, 2, "suppenbl");
6865 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6866 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6867 return 0;
6868 }
6869
6870 static int
6871 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6872 {
6873 int rc;
6874 struct qeth_cmd_buffer *iob;
6875
6876 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6877 if (card->options.layer2) {
6878 QETH_DBF_TEXT(setup, 2, "noprmly2");
6879 return -EPERM;
6880 }
6881
6882 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6883 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6884 return rc;
6885 }
6886
6887 static struct qeth_cmd_buffer *
6888 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6889 __u16 cmd_code, __u16 len,
6890 enum qeth_prot_versions prot)
6891 {
6892 struct qeth_cmd_buffer *iob;
6893 struct qeth_ipa_cmd *cmd;
6894
6895 QETH_DBF_TEXT(trace,4,"getasscm");
6896 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6897
6898 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6899 cmd->data.setassparms.hdr.assist_no = ipa_func;
6900 cmd->data.setassparms.hdr.length = 8 + len;
6901 cmd->data.setassparms.hdr.command_code = cmd_code;
6902 cmd->data.setassparms.hdr.return_code = 0;
6903 cmd->data.setassparms.hdr.seq_no = 0;
6904
6905 return iob;
6906 }
6907
6908 static int
6909 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6910 __u16 len, long data,
6911 int (*reply_cb)
6912 (struct qeth_card *,struct qeth_reply *,unsigned long),
6913 void *reply_param)
6914 {
6915 int rc;
6916 struct qeth_ipa_cmd *cmd;
6917
6918 QETH_DBF_TEXT(trace,4,"sendassp");
6919
6920 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6921 if (len <= sizeof(__u32))
6922 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6923 else /* (len > sizeof(__u32)) */
6924 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6925
6926 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6927 return rc;
6928 }
6929
6930 #ifdef CONFIG_QETH_IPV6
6931 static int
6932 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6933 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6934
6935 {
6936 int rc;
6937 struct qeth_cmd_buffer *iob;
6938
6939 QETH_DBF_TEXT(trace,4,"simassp6");
6940 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6941 0, QETH_PROT_IPV6);
6942 rc = qeth_send_setassparms(card, iob, 0, 0,
6943 qeth_default_setassparms_cb, NULL);
6944 return rc;
6945 }
6946 #endif
6947
6948 static int
6949 qeth_send_simple_setassparms(struct qeth_card *card,
6950 enum qeth_ipa_funcs ipa_func,
6951 __u16 cmd_code, long data)
6952 {
6953 int rc;
6954 int length = 0;
6955 struct qeth_cmd_buffer *iob;
6956
6957 QETH_DBF_TEXT(trace,4,"simassp4");
6958 if (data)
6959 length = sizeof(__u32);
6960 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6961 length, QETH_PROT_IPV4);
6962 rc = qeth_send_setassparms(card, iob, length, data,
6963 qeth_default_setassparms_cb, NULL);
6964 return rc;
6965 }
6966
6967 static int
6968 qeth_start_ipa_arp_processing(struct qeth_card *card)
6969 {
6970 int rc;
6971
6972 QETH_DBF_TEXT(trace,3,"ipaarp");
6973
6974 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6975 PRINT_WARN("ARP processing not supported "
6976 "on %s!\n", QETH_CARD_IFNAME(card));
6977 return 0;
6978 }
6979 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6980 IPA_CMD_ASS_START, 0);
6981 if (rc) {
6982 PRINT_WARN("Could not start ARP processing "
6983 "assist on %s: 0x%x\n",
6984 QETH_CARD_IFNAME(card), rc);
6985 }
6986 return rc;
6987 }
6988
6989 static int
6990 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6991 {
6992 int rc;
6993
6994 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6995
6996 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6997 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6998 QETH_CARD_IFNAME(card));
6999 return -EOPNOTSUPP;
7000 }
7001
7002 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
7003 IPA_CMD_ASS_START, 0);
7004 if (rc) {
7005 PRINT_WARN("Could not start Hardware IP fragmentation "
7006 "assist on %s: 0x%x\n",
7007 QETH_CARD_IFNAME(card), rc);
7008 } else
7009 PRINT_INFO("Hardware IP fragmentation enabled \n");
7010 return rc;
7011 }
7012
7013 static int
7014 qeth_start_ipa_source_mac(struct qeth_card *card)
7015 {
7016 int rc;
7017
7018 QETH_DBF_TEXT(trace,3,"stsrcmac");
7019
7020 if (!card->options.fake_ll)
7021 return -EOPNOTSUPP;
7022
7023 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7024 PRINT_INFO("Inbound source address not "
7025 "supported on %s\n", QETH_CARD_IFNAME(card));
7026 return -EOPNOTSUPP;
7027 }
7028
7029 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7030 IPA_CMD_ASS_START, 0);
7031 if (rc)
7032 PRINT_WARN("Could not start inbound source "
7033 "assist on %s: 0x%x\n",
7034 QETH_CARD_IFNAME(card), rc);
7035 return rc;
7036 }
7037
7038 static int
7039 qeth_start_ipa_vlan(struct qeth_card *card)
7040 {
7041 int rc = 0;
7042
7043 QETH_DBF_TEXT(trace,3,"strtvlan");
7044
7045 #ifdef CONFIG_QETH_VLAN
7046 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7047 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7048 return -EOPNOTSUPP;
7049 }
7050
7051 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7052 IPA_CMD_ASS_START,0);
7053 if (rc) {
7054 PRINT_WARN("Could not start vlan "
7055 "assist on %s: 0x%x\n",
7056 QETH_CARD_IFNAME(card), rc);
7057 } else {
7058 PRINT_INFO("VLAN enabled \n");
7059 card->dev->features |=
7060 NETIF_F_HW_VLAN_FILTER |
7061 NETIF_F_HW_VLAN_TX |
7062 NETIF_F_HW_VLAN_RX;
7063 }
7064 #endif /* QETH_VLAN */
7065 return rc;
7066 }
7067
7068 static int
7069 qeth_start_ipa_multicast(struct qeth_card *card)
7070 {
7071 int rc;
7072
7073 QETH_DBF_TEXT(trace,3,"stmcast");
7074
7075 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7076 PRINT_WARN("Multicast not supported on %s\n",
7077 QETH_CARD_IFNAME(card));
7078 return -EOPNOTSUPP;
7079 }
7080
7081 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7082 IPA_CMD_ASS_START,0);
7083 if (rc) {
7084 PRINT_WARN("Could not start multicast "
7085 "assist on %s: rc=%i\n",
7086 QETH_CARD_IFNAME(card), rc);
7087 } else {
7088 PRINT_INFO("Multicast enabled\n");
7089 card->dev->flags |= IFF_MULTICAST;
7090 }
7091 return rc;
7092 }
7093
7094 #ifdef CONFIG_QETH_IPV6
7095 static int
7096 qeth_softsetup_ipv6(struct qeth_card *card)
7097 {
7098 int rc;
7099
7100 QETH_DBF_TEXT(trace,3,"softipv6");
7101
7102 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7103 if (rc) {
7104 PRINT_ERR("IPv6 startlan failed on %s\n",
7105 QETH_CARD_IFNAME(card));
7106 return rc;
7107 }
7108 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7109 if (rc) {
7110 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7111 QETH_CARD_IFNAME(card));
7112 return rc;
7113 }
7114 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7115 IPA_CMD_ASS_START, 3);
7116 if (rc) {
7117 PRINT_WARN("IPv6 start assist (version 4) failed "
7118 "on %s: 0x%x\n",
7119 QETH_CARD_IFNAME(card), rc);
7120 return rc;
7121 }
7122 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7123 IPA_CMD_ASS_START);
7124 if (rc) {
7125 PRINT_WARN("IPV6 start assist (version 6) failed "
7126 "on %s: 0x%x\n",
7127 QETH_CARD_IFNAME(card), rc);
7128 return rc;
7129 }
7130 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7131 IPA_CMD_ASS_START);
7132 if (rc) {
7133 PRINT_WARN("Could not enable passthrough "
7134 "on %s: 0x%x\n",
7135 QETH_CARD_IFNAME(card), rc);
7136 return rc;
7137 }
7138 PRINT_INFO("IPV6 enabled \n");
7139 return 0;
7140 }
7141
7142 #endif
7143
7144 static int
7145 qeth_start_ipa_ipv6(struct qeth_card *card)
7146 {
7147 int rc = 0;
7148 #ifdef CONFIG_QETH_IPV6
7149 QETH_DBF_TEXT(trace,3,"strtipv6");
7150
7151 if (!qeth_is_supported(card, IPA_IPV6)) {
7152 PRINT_WARN("IPv6 not supported on %s\n",
7153 QETH_CARD_IFNAME(card));
7154 return 0;
7155 }
7156 rc = qeth_softsetup_ipv6(card);
7157 #endif
7158 return rc ;
7159 }
7160
7161 static int
7162 qeth_start_ipa_broadcast(struct qeth_card *card)
7163 {
7164 int rc;
7165
7166 QETH_DBF_TEXT(trace,3,"stbrdcst");
7167 card->info.broadcast_capable = 0;
7168 if (!qeth_is_supported(card, IPA_FILTERING)) {
7169 PRINT_WARN("Broadcast not supported on %s\n",
7170 QETH_CARD_IFNAME(card));
7171 rc = -EOPNOTSUPP;
7172 goto out;
7173 }
7174 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7175 IPA_CMD_ASS_START, 0);
7176 if (rc) {
7177 PRINT_WARN("Could not enable broadcasting filtering "
7178 "on %s: 0x%x\n",
7179 QETH_CARD_IFNAME(card), rc);
7180 goto out;
7181 }
7182
7183 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7184 IPA_CMD_ASS_CONFIGURE, 1);
7185 if (rc) {
7186 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7187 QETH_CARD_IFNAME(card), rc);
7188 goto out;
7189 }
7190 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7191 PRINT_INFO("Broadcast enabled \n");
7192 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7193 IPA_CMD_ASS_ENABLE, 1);
7194 if (rc) {
7195 PRINT_WARN("Could not set up broadcast echo filtering on "
7196 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7197 goto out;
7198 }
7199 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7200 out:
7201 if (card->info.broadcast_capable)
7202 card->dev->flags |= IFF_BROADCAST;
7203 else
7204 card->dev->flags &= ~IFF_BROADCAST;
7205 return rc;
7206 }
7207
7208 static int
7209 qeth_send_checksum_command(struct qeth_card *card)
7210 {
7211 int rc;
7212
7213 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7214 IPA_CMD_ASS_START, 0);
7215 if (rc) {
7216 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7217 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7218 QETH_CARD_IFNAME(card), rc);
7219 return rc;
7220 }
7221 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7222 IPA_CMD_ASS_ENABLE,
7223 card->info.csum_mask);
7224 if (rc) {
7225 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7226 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7227 QETH_CARD_IFNAME(card), rc);
7228 return rc;
7229 }
7230 return 0;
7231 }
7232
7233 static int
7234 qeth_start_ipa_checksum(struct qeth_card *card)
7235 {
7236 int rc = 0;
7237
7238 QETH_DBF_TEXT(trace,3,"strtcsum");
7239
7240 if (card->options.checksum_type == NO_CHECKSUMMING) {
7241 PRINT_WARN("Using no checksumming on %s.\n",
7242 QETH_CARD_IFNAME(card));
7243 return 0;
7244 }
7245 if (card->options.checksum_type == SW_CHECKSUMMING) {
7246 PRINT_WARN("Using SW checksumming on %s.\n",
7247 QETH_CARD_IFNAME(card));
7248 return 0;
7249 }
7250 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7251 PRINT_WARN("Inbound HW Checksumming not "
7252 "supported on %s,\ncontinuing "
7253 "using Inbound SW Checksumming\n",
7254 QETH_CARD_IFNAME(card));
7255 card->options.checksum_type = SW_CHECKSUMMING;
7256 return 0;
7257 }
7258 rc = qeth_send_checksum_command(card);
7259 if (!rc) {
7260 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7261 }
7262 return rc;
7263 }
7264
7265 static int
7266 qeth_start_ipa_tso(struct qeth_card *card)
7267 {
7268 int rc;
7269
7270 QETH_DBF_TEXT(trace,3,"sttso");
7271
7272 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7273 PRINT_WARN("Outbound TSO not supported on %s\n",
7274 QETH_CARD_IFNAME(card));
7275 rc = -EOPNOTSUPP;
7276 } else {
7277 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7278 IPA_CMD_ASS_START,0);
7279 if (rc)
7280 PRINT_WARN("Could not start outbound TSO "
7281 "assist on %s: rc=%i\n",
7282 QETH_CARD_IFNAME(card), rc);
7283 else
7284 PRINT_INFO("Outbound TSO enabled\n");
7285 }
7286 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7287 card->options.large_send = QETH_LARGE_SEND_NO;
7288 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7289 }
7290 return rc;
7291 }
7292
7293 static int
7294 qeth_start_ipassists(struct qeth_card *card)
7295 {
7296 QETH_DBF_TEXT(trace,3,"strtipas");
7297 qeth_start_ipa_arp_processing(card); /* go on*/
7298 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7299 qeth_start_ipa_source_mac(card); /* go on*/
7300 qeth_start_ipa_vlan(card); /* go on*/
7301 qeth_start_ipa_multicast(card); /* go on*/
7302 qeth_start_ipa_ipv6(card); /* go on*/
7303 qeth_start_ipa_broadcast(card); /* go on*/
7304 qeth_start_ipa_checksum(card); /* go on*/
7305 qeth_start_ipa_tso(card); /* go on*/
7306 return 0;
7307 }
7308
7309 static int
7310 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7311 enum qeth_prot_versions prot)
7312 {
7313 int rc;
7314 struct qeth_ipa_cmd *cmd;
7315 struct qeth_cmd_buffer *iob;
7316
7317 QETH_DBF_TEXT(trace,4,"setroutg");
7318 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7319 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7320 cmd->data.setrtg.type = (type);
7321 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7322
7323 return rc;
7324
7325 }
7326
7327 static void
7328 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7329 enum qeth_prot_versions prot)
7330 {
7331 if (card->info.type == QETH_CARD_TYPE_IQD) {
7332 switch (*type) {
7333 case NO_ROUTER:
7334 case PRIMARY_CONNECTOR:
7335 case SECONDARY_CONNECTOR:
7336 case MULTICAST_ROUTER:
7337 return;
7338 default:
7339 goto out_inval;
7340 }
7341 } else {
7342 switch (*type) {
7343 case NO_ROUTER:
7344 case PRIMARY_ROUTER:
7345 case SECONDARY_ROUTER:
7346 return;
7347 case MULTICAST_ROUTER:
7348 if (qeth_is_ipafunc_supported(card, prot,
7349 IPA_OSA_MC_ROUTER))
7350 return;
7351 default:
7352 goto out_inval;
7353 }
7354 }
7355 out_inval:
7356 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7357 "Router status set to 'no router'.\n",
7358 ((*type == PRIMARY_ROUTER)? "primary router" :
7359 (*type == SECONDARY_ROUTER)? "secondary router" :
7360 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7361 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7362 (*type == MULTICAST_ROUTER)? "multicast router" :
7363 "unknown"),
7364 card->dev->name);
7365 *type = NO_ROUTER;
7366 }
7367
7368 int
7369 qeth_setrouting_v4(struct qeth_card *card)
7370 {
7371 int rc;
7372
7373 QETH_DBF_TEXT(trace,3,"setrtg4");
7374
7375 qeth_correct_routing_type(card, &card->options.route4.type,
7376 QETH_PROT_IPV4);
7377
7378 rc = qeth_send_setrouting(card, card->options.route4.type,
7379 QETH_PROT_IPV4);
7380 if (rc) {
7381 card->options.route4.type = NO_ROUTER;
7382 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7383 "Type set to 'no router'.\n",
7384 rc, QETH_CARD_IFNAME(card));
7385 }
7386 return rc;
7387 }
7388
7389 int
7390 qeth_setrouting_v6(struct qeth_card *card)
7391 {
7392 int rc = 0;
7393
7394 QETH_DBF_TEXT(trace,3,"setrtg6");
7395 #ifdef CONFIG_QETH_IPV6
7396
7397 if (!qeth_is_supported(card, IPA_IPV6))
7398 return 0;
7399 qeth_correct_routing_type(card, &card->options.route6.type,
7400 QETH_PROT_IPV6);
7401
7402 rc = qeth_send_setrouting(card, card->options.route6.type,
7403 QETH_PROT_IPV6);
7404 if (rc) {
7405 card->options.route6.type = NO_ROUTER;
7406 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7407 "Type set to 'no router'.\n",
7408 rc, QETH_CARD_IFNAME(card));
7409 }
7410 #endif
7411 return rc;
7412 }
7413
7414 int
7415 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7416 {
7417 int rc = 0;
7418
7419 if (card->dev == NULL) {
7420 card->options.large_send = type;
7421 return 0;
7422 }
7423 if (card->state == CARD_STATE_UP)
7424 netif_tx_disable(card->dev);
7425 card->options.large_send = type;
7426 switch (card->options.large_send) {
7427 case QETH_LARGE_SEND_EDDP:
7428 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7429 break;
7430 case QETH_LARGE_SEND_TSO:
7431 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7432 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7433 } else {
7434 PRINT_WARN("TSO not supported on %s. "
7435 "large_send set to 'no'.\n",
7436 card->dev->name);
7437 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7438 card->options.large_send = QETH_LARGE_SEND_NO;
7439 rc = -EOPNOTSUPP;
7440 }
7441 break;
7442 default: /* includes QETH_LARGE_SEND_NO */
7443 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7444 break;
7445 }
7446 if (card->state == CARD_STATE_UP)
7447 netif_wake_queue(card->dev);
7448 return rc;
7449 }
7450
7451 /*
7452 * softsetup card: init IPA stuff
7453 */
7454 static int
7455 qeth_softsetup_card(struct qeth_card *card)
7456 {
7457 int rc;
7458
7459 QETH_DBF_TEXT(setup, 2, "softsetp");
7460
7461 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7462 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7463 if (rc == 0xe080){
7464 PRINT_WARN("LAN on card %s if offline! "
7465 "Continuing softsetup.\n",
7466 CARD_BUS_ID(card));
7467 card->lan_online = 0;
7468 } else
7469 return rc;
7470 } else
7471 card->lan_online = 1;
7472 if (card->info.type==QETH_CARD_TYPE_OSN)
7473 goto out;
7474 qeth_set_large_send(card, card->options.large_send);
7475 if (card->options.layer2) {
7476 card->dev->features |=
7477 NETIF_F_HW_VLAN_FILTER |
7478 NETIF_F_HW_VLAN_TX |
7479 NETIF_F_HW_VLAN_RX;
7480 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7481 card->info.broadcast_capable=1;
7482 if ((rc = qeth_layer2_initialize(card))) {
7483 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7484 return rc;
7485 }
7486 #ifdef CONFIG_QETH_VLAN
7487 qeth_layer2_process_vlans(card, 0);
7488 #endif
7489 goto out;
7490 }
7491 if ((rc = qeth_setadapter_parms(card)))
7492 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7493 if ((rc = qeth_start_ipassists(card)))
7494 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7495 if ((rc = qeth_setrouting_v4(card)))
7496 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7497 if ((rc = qeth_setrouting_v6(card)))
7498 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7499 out:
7500 netif_tx_disable(card->dev);
7501 return 0;
7502 }
7503
7504 #ifdef CONFIG_QETH_IPV6
7505 static int
7506 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7507 unsigned long data)
7508 {
7509 struct qeth_ipa_cmd *cmd;
7510
7511 cmd = (struct qeth_ipa_cmd *) data;
7512 if (cmd->hdr.return_code == 0)
7513 card->info.unique_id = *((__u16 *)
7514 &cmd->data.create_destroy_addr.unique_id[6]);
7515 else {
7516 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7517 UNIQUE_ID_NOT_BY_CARD;
7518 PRINT_WARN("couldn't get a unique id from the card on device "
7519 "%s (result=x%x), using default id. ipv6 "
7520 "autoconfig on other lpars may lead to duplicate "
7521 "ip addresses. please use manually "
7522 "configured ones.\n",
7523 CARD_BUS_ID(card), cmd->hdr.return_code);
7524 }
7525 return 0;
7526 }
7527 #endif
7528
7529 static int
7530 qeth_put_unique_id(struct qeth_card *card)
7531 {
7532
7533 int rc = 0;
7534 #ifdef CONFIG_QETH_IPV6
7535 struct qeth_cmd_buffer *iob;
7536 struct qeth_ipa_cmd *cmd;
7537
7538 QETH_DBF_TEXT(trace,2,"puniqeid");
7539
7540 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7541 UNIQUE_ID_NOT_BY_CARD)
7542 return -1;
7543 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7544 QETH_PROT_IPV6);
7545 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7546 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7547 card->info.unique_id;
7548 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7549 card->dev->dev_addr, OSA_ADDR_LEN);
7550 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7551 #else
7552 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7553 UNIQUE_ID_NOT_BY_CARD;
7554 #endif
7555 return rc;
7556 }
7557
7558 /**
7559 * Clear IP List
7560 */
7561 static void
7562 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7563 {
7564 struct qeth_ipaddr *addr, *tmp;
7565 unsigned long flags;
7566
7567 QETH_DBF_TEXT(trace,4,"clearip");
7568 spin_lock_irqsave(&card->ip_lock, flags);
7569 /* clear todo list */
7570 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7571 list_del(&addr->entry);
7572 kfree(addr);
7573 }
7574
7575 while (!list_empty(&card->ip_list)) {
7576 addr = list_entry(card->ip_list.next,
7577 struct qeth_ipaddr, entry);
7578 list_del_init(&addr->entry);
7579 if (clean) {
7580 spin_unlock_irqrestore(&card->ip_lock, flags);
7581 qeth_deregister_addr_entry(card, addr);
7582 spin_lock_irqsave(&card->ip_lock, flags);
7583 }
7584 if (!recover || addr->is_multicast) {
7585 kfree(addr);
7586 continue;
7587 }
7588 list_add_tail(&addr->entry, card->ip_tbd_list);
7589 }
7590 spin_unlock_irqrestore(&card->ip_lock, flags);
7591 }
7592
7593 static void
7594 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7595 int clear_start_mask)
7596 {
7597 unsigned long flags;
7598
7599 spin_lock_irqsave(&card->thread_mask_lock, flags);
7600 card->thread_allowed_mask = threads;
7601 if (clear_start_mask)
7602 card->thread_start_mask &= threads;
7603 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7604 wake_up(&card->wait_q);
7605 }
7606
7607 static int
7608 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7609 {
7610 unsigned long flags;
7611 int rc = 0;
7612
7613 spin_lock_irqsave(&card->thread_mask_lock, flags);
7614 rc = (card->thread_running_mask & threads);
7615 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7616 return rc;
7617 }
7618
7619 static int
7620 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7621 {
7622 return wait_event_interruptible(card->wait_q,
7623 qeth_threads_running(card, threads) == 0);
7624 }
7625
7626 static int
7627 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7628 {
7629 int rc = 0;
7630
7631 QETH_DBF_TEXT(setup ,2,"stopcard");
7632 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7633
7634 qeth_set_allowed_threads(card, 0, 1);
7635 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7636 return -ERESTARTSYS;
7637 if (card->read.state == CH_STATE_UP &&
7638 card->write.state == CH_STATE_UP &&
7639 (card->state == CARD_STATE_UP)) {
7640 if (recovery_mode &&
7641 card->info.type != QETH_CARD_TYPE_OSN) {
7642 qeth_stop(card->dev);
7643 } else {
7644 rtnl_lock();
7645 dev_close(card->dev);
7646 rtnl_unlock();
7647 }
7648 if (!card->use_hard_stop) {
7649 __u8 *mac = &card->dev->dev_addr[0];
7650 rc = qeth_layer2_send_delmac(card, mac);
7651 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7652 if ((rc = qeth_send_stoplan(card)))
7653 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7654 }
7655 card->state = CARD_STATE_SOFTSETUP;
7656 }
7657 if (card->state == CARD_STATE_SOFTSETUP) {
7658 #ifdef CONFIG_QETH_VLAN
7659 if (card->options.layer2)
7660 qeth_layer2_process_vlans(card, 1);
7661 #endif
7662 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7663 qeth_clear_ipacmd_list(card);
7664 card->state = CARD_STATE_HARDSETUP;
7665 }
7666 if (card->state == CARD_STATE_HARDSETUP) {
7667 if ((!card->use_hard_stop) &&
7668 (!card->options.layer2))
7669 if ((rc = qeth_put_unique_id(card)))
7670 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7671 qeth_qdio_clear_card(card, 0);
7672 qeth_clear_qdio_buffers(card);
7673 qeth_clear_working_pool_list(card);
7674 card->state = CARD_STATE_DOWN;
7675 }
7676 if (card->state == CARD_STATE_DOWN) {
7677 qeth_clear_cmd_buffers(&card->read);
7678 qeth_clear_cmd_buffers(&card->write);
7679 }
7680 card->use_hard_stop = 0;
7681 return rc;
7682 }
7683
7684
7685 static int
7686 qeth_get_unique_id(struct qeth_card *card)
7687 {
7688 int rc = 0;
7689 #ifdef CONFIG_QETH_IPV6
7690 struct qeth_cmd_buffer *iob;
7691 struct qeth_ipa_cmd *cmd;
7692
7693 QETH_DBF_TEXT(setup, 2, "guniqeid");
7694
7695 if (!qeth_is_supported(card,IPA_IPV6)) {
7696 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7697 UNIQUE_ID_NOT_BY_CARD;
7698 return 0;
7699 }
7700
7701 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7702 QETH_PROT_IPV6);
7703 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7704 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7705 card->info.unique_id;
7706
7707 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7708 #else
7709 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7710 UNIQUE_ID_NOT_BY_CARD;
7711 #endif
7712 return rc;
7713 }
7714 static void
7715 qeth_print_status_with_portname(struct qeth_card *card)
7716 {
7717 char dbf_text[15];
7718 int i;
7719
7720 sprintf(dbf_text, "%s", card->info.portname + 1);
7721 for (i = 0; i < 8; i++)
7722 dbf_text[i] =
7723 (char) _ebcasc[(__u8) dbf_text[i]];
7724 dbf_text[8] = 0;
7725 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7726 "with link type %s (portname: %s)\n",
7727 CARD_RDEV_ID(card),
7728 CARD_WDEV_ID(card),
7729 CARD_DDEV_ID(card),
7730 qeth_get_cardname(card),
7731 (card->info.mcl_level[0]) ? " (level: " : "",
7732 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7733 (card->info.mcl_level[0]) ? ")" : "",
7734 qeth_get_cardname_short(card),
7735 dbf_text);
7736
7737 }
7738
7739 static void
7740 qeth_print_status_no_portname(struct qeth_card *card)
7741 {
7742 if (card->info.portname[0])
7743 printk("qeth: Device %s/%s/%s is a%s "
7744 "card%s%s%s\nwith link type %s "
7745 "(no portname needed by interface).\n",
7746 CARD_RDEV_ID(card),
7747 CARD_WDEV_ID(card),
7748 CARD_DDEV_ID(card),
7749 qeth_get_cardname(card),
7750 (card->info.mcl_level[0]) ? " (level: " : "",
7751 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7752 (card->info.mcl_level[0]) ? ")" : "",
7753 qeth_get_cardname_short(card));
7754 else
7755 printk("qeth: Device %s/%s/%s is a%s "
7756 "card%s%s%s\nwith link type %s.\n",
7757 CARD_RDEV_ID(card),
7758 CARD_WDEV_ID(card),
7759 CARD_DDEV_ID(card),
7760 qeth_get_cardname(card),
7761 (card->info.mcl_level[0]) ? " (level: " : "",
7762 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7763 (card->info.mcl_level[0]) ? ")" : "",
7764 qeth_get_cardname_short(card));
7765 }
7766
7767 static void
7768 qeth_print_status_message(struct qeth_card *card)
7769 {
7770 switch (card->info.type) {
7771 case QETH_CARD_TYPE_OSAE:
7772 /* VM will use a non-zero first character
7773 * to indicate a HiperSockets like reporting
7774 * of the level OSA sets the first character to zero
7775 * */
7776 if (!card->info.mcl_level[0]) {
7777 sprintf(card->info.mcl_level,"%02x%02x",
7778 card->info.mcl_level[2],
7779 card->info.mcl_level[3]);
7780
7781 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7782 break;
7783 }
7784 /* fallthrough */
7785 case QETH_CARD_TYPE_IQD:
7786 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7787 card->info.mcl_level[0]];
7788 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7789 card->info.mcl_level[1]];
7790 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7791 card->info.mcl_level[2]];
7792 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7793 card->info.mcl_level[3]];
7794 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7795 break;
7796 default:
7797 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7798 }
7799 if (card->info.portname_required)
7800 qeth_print_status_with_portname(card);
7801 else
7802 qeth_print_status_no_portname(card);
7803 }
7804
7805 static int
7806 qeth_register_netdev(struct qeth_card *card)
7807 {
7808 QETH_DBF_TEXT(setup, 3, "regnetd");
7809 if (card->dev->reg_state != NETREG_UNINITIALIZED)
7810 return 0;
7811 /* sysfs magic */
7812 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7813 return register_netdev(card->dev);
7814 }
7815
7816 static void
7817 qeth_start_again(struct qeth_card *card, int recovery_mode)
7818 {
7819 QETH_DBF_TEXT(setup ,2, "startag");
7820
7821 if (recovery_mode &&
7822 card->info.type != QETH_CARD_TYPE_OSN) {
7823 qeth_open(card->dev);
7824 } else {
7825 rtnl_lock();
7826 dev_open(card->dev);
7827 rtnl_unlock();
7828 }
7829 /* this also sets saved unicast addresses */
7830 qeth_set_multicast_list(card->dev);
7831 }
7832
7833
7834 /* Layer 2 specific stuff */
7835 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7836 if (card->options.option == value) { \
7837 PRINT_ERR("%s not supported with layer 2 " \
7838 "functionality, ignoring option on read" \
7839 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7840 card->options.option = reset_value; \
7841 }
7842 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7843 if (card->options.option != value) { \
7844 PRINT_ERR("%s not supported with layer 2 " \
7845 "functionality, ignoring option on read" \
7846 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7847 card->options.option = reset_value; \
7848 }
7849
7850
7851 static void qeth_make_parameters_consistent(struct qeth_card *card)
7852 {
7853
7854 if (card->options.layer2 == 0)
7855 return;
7856 if (card->info.type == QETH_CARD_TYPE_OSN)
7857 return;
7858 if (card->info.type == QETH_CARD_TYPE_IQD) {
7859 PRINT_ERR("Device %s does not support layer 2 functionality." \
7860 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7861 card->options.layer2 = 0;
7862 return;
7863 }
7864 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7865 "Routing options are");
7866 #ifdef CONFIG_QETH_IPV6
7867 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7868 "Routing options are");
7869 #endif
7870 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7871 QETH_CHECKSUM_DEFAULT,
7872 "Checksumming options are");
7873 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7874 QETH_TR_BROADCAST_ALLRINGS,
7875 "Broadcast mode options are");
7876 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7877 QETH_TR_MACADDR_NONCANONICAL,
7878 "Canonical MAC addr options are");
7879 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7880 "Broadcast faking options are");
7881 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7882 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7883 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7884 }
7885
7886
7887 static int
7888 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7889 {
7890 struct qeth_card *card = gdev->dev.driver_data;
7891 int rc = 0;
7892 enum qeth_card_states recover_flag;
7893
7894 BUG_ON(!card);
7895 QETH_DBF_TEXT(setup ,2, "setonlin");
7896 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7897
7898 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7899 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7900 PRINT_WARN("set_online of card %s interrupted by user!\n",
7901 CARD_BUS_ID(card));
7902 return -ERESTARTSYS;
7903 }
7904
7905 recover_flag = card->state;
7906 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7907 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7908 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7909 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7910 return -EIO;
7911 }
7912
7913 qeth_make_parameters_consistent(card);
7914
7915 if ((rc = qeth_hardsetup_card(card))){
7916 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7917 goto out_remove;
7918 }
7919 card->state = CARD_STATE_HARDSETUP;
7920
7921 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7922 rc = qeth_get_unique_id(card);
7923
7924 if (rc && card->options.layer2 == 0) {
7925 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7926 goto out_remove;
7927 }
7928 qeth_print_status_message(card);
7929 if ((rc = qeth_register_netdev(card))){
7930 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7931 goto out_remove;
7932 }
7933 if ((rc = qeth_softsetup_card(card))){
7934 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7935 goto out_remove;
7936 }
7937
7938 if ((rc = qeth_init_qdio_queues(card))){
7939 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7940 goto out_remove;
7941 }
7942 card->state = CARD_STATE_SOFTSETUP;
7943 netif_carrier_on(card->dev);
7944
7945 qeth_set_allowed_threads(card, 0xffffffff, 0);
7946 if (recover_flag == CARD_STATE_RECOVER)
7947 qeth_start_again(card, recovery_mode);
7948 qeth_notify_processes();
7949 return 0;
7950 out_remove:
7951 card->use_hard_stop = 1;
7952 qeth_stop_card(card, 0);
7953 ccw_device_set_offline(CARD_DDEV(card));
7954 ccw_device_set_offline(CARD_WDEV(card));
7955 ccw_device_set_offline(CARD_RDEV(card));
7956 if (recover_flag == CARD_STATE_RECOVER)
7957 card->state = CARD_STATE_RECOVER;
7958 else
7959 card->state = CARD_STATE_DOWN;
7960 return -ENODEV;
7961 }
7962
7963 static int
7964 qeth_set_online(struct ccwgroup_device *gdev)
7965 {
7966 return __qeth_set_online(gdev, 0);
7967 }
7968
7969 static struct ccw_device_id qeth_ids[] = {
7970 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7971 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7972 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
7973 {},
7974 };
7975 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7976
7977 struct device *qeth_root_dev = NULL;
7978
7979 struct ccwgroup_driver qeth_ccwgroup_driver = {
7980 .owner = THIS_MODULE,
7981 .name = "qeth",
7982 .driver_id = 0xD8C5E3C8,
7983 .probe = qeth_probe_device,
7984 .remove = qeth_remove_device,
7985 .set_online = qeth_set_online,
7986 .set_offline = qeth_set_offline,
7987 };
7988
7989 struct ccw_driver qeth_ccw_driver = {
7990 .name = "qeth",
7991 .ids = qeth_ids,
7992 .probe = ccwgroup_probe_ccwdev,
7993 .remove = ccwgroup_remove_ccwdev,
7994 };
7995
7996
7997 static void
7998 qeth_unregister_dbf_views(void)
7999 {
8000 if (qeth_dbf_setup)
8001 debug_unregister(qeth_dbf_setup);
8002 if (qeth_dbf_qerr)
8003 debug_unregister(qeth_dbf_qerr);
8004 if (qeth_dbf_sense)
8005 debug_unregister(qeth_dbf_sense);
8006 if (qeth_dbf_misc)
8007 debug_unregister(qeth_dbf_misc);
8008 if (qeth_dbf_data)
8009 debug_unregister(qeth_dbf_data);
8010 if (qeth_dbf_control)
8011 debug_unregister(qeth_dbf_control);
8012 if (qeth_dbf_trace)
8013 debug_unregister(qeth_dbf_trace);
8014 }
8015 static int
8016 qeth_register_dbf_views(void)
8017 {
8018 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8019 QETH_DBF_SETUP_PAGES,
8020 QETH_DBF_SETUP_NR_AREAS,
8021 QETH_DBF_SETUP_LEN);
8022 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8023 QETH_DBF_MISC_PAGES,
8024 QETH_DBF_MISC_NR_AREAS,
8025 QETH_DBF_MISC_LEN);
8026 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8027 QETH_DBF_DATA_PAGES,
8028 QETH_DBF_DATA_NR_AREAS,
8029 QETH_DBF_DATA_LEN);
8030 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8031 QETH_DBF_CONTROL_PAGES,
8032 QETH_DBF_CONTROL_NR_AREAS,
8033 QETH_DBF_CONTROL_LEN);
8034 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8035 QETH_DBF_SENSE_PAGES,
8036 QETH_DBF_SENSE_NR_AREAS,
8037 QETH_DBF_SENSE_LEN);
8038 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8039 QETH_DBF_QERR_PAGES,
8040 QETH_DBF_QERR_NR_AREAS,
8041 QETH_DBF_QERR_LEN);
8042 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8043 QETH_DBF_TRACE_PAGES,
8044 QETH_DBF_TRACE_NR_AREAS,
8045 QETH_DBF_TRACE_LEN);
8046
8047 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
8048 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
8049 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
8050 (qeth_dbf_trace == NULL)) {
8051 qeth_unregister_dbf_views();
8052 return -ENOMEM;
8053 }
8054 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8055 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8056
8057 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8058 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8059
8060 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8061 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8062
8063 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8064 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8065
8066 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8067 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8068
8069 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8070 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8071
8072 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8073 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8074
8075 return 0;
8076 }
8077
8078 #ifdef CONFIG_QETH_IPV6
8079 extern struct neigh_table arp_tbl;
8080 static struct neigh_ops *arp_direct_ops;
8081 static int (*qeth_old_arp_constructor) (struct neighbour *);
8082
8083 static struct neigh_ops arp_direct_ops_template = {
8084 .family = AF_INET,
8085 .solicit = NULL,
8086 .error_report = NULL,
8087 .output = dev_queue_xmit,
8088 .connected_output = dev_queue_xmit,
8089 .hh_output = dev_queue_xmit,
8090 .queue_xmit = dev_queue_xmit
8091 };
8092
8093 static int
8094 qeth_arp_constructor(struct neighbour *neigh)
8095 {
8096 struct net_device *dev = neigh->dev;
8097 struct in_device *in_dev;
8098 struct neigh_parms *parms;
8099 struct qeth_card *card;
8100
8101 card = qeth_get_card_from_dev(dev);
8102 if (card == NULL)
8103 goto out;
8104 if((card->options.layer2) ||
8105 (card->dev->hard_header == qeth_fake_header))
8106 goto out;
8107
8108 rcu_read_lock();
8109 in_dev = __in_dev_get_rcu(dev);
8110 if (in_dev == NULL) {
8111 rcu_read_unlock();
8112 return -EINVAL;
8113 }
8114
8115 parms = in_dev->arp_parms;
8116 __neigh_parms_put(neigh->parms);
8117 neigh->parms = neigh_parms_clone(parms);
8118 rcu_read_unlock();
8119
8120 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8121 neigh->nud_state = NUD_NOARP;
8122 neigh->ops = arp_direct_ops;
8123 neigh->output = neigh->ops->queue_xmit;
8124 return 0;
8125 out:
8126 return qeth_old_arp_constructor(neigh);
8127 }
8128 #endif /*CONFIG_QETH_IPV6*/
8129
8130 /*
8131 * IP address takeover related functions
8132 */
8133 static void
8134 qeth_clear_ipato_list(struct qeth_card *card)
8135 {
8136 struct qeth_ipato_entry *ipatoe, *tmp;
8137 unsigned long flags;
8138
8139 spin_lock_irqsave(&card->ip_lock, flags);
8140 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8141 list_del(&ipatoe->entry);
8142 kfree(ipatoe);
8143 }
8144 spin_unlock_irqrestore(&card->ip_lock, flags);
8145 }
8146
8147 int
8148 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8149 {
8150 struct qeth_ipato_entry *ipatoe;
8151 unsigned long flags;
8152 int rc = 0;
8153
8154 QETH_DBF_TEXT(trace, 2, "addipato");
8155 spin_lock_irqsave(&card->ip_lock, flags);
8156 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8157 if (ipatoe->proto != new->proto)
8158 continue;
8159 if (!memcmp(ipatoe->addr, new->addr,
8160 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8161 (ipatoe->mask_bits == new->mask_bits)){
8162 PRINT_WARN("ipato entry already exists!\n");
8163 rc = -EEXIST;
8164 break;
8165 }
8166 }
8167 if (!rc) {
8168 list_add_tail(&new->entry, &card->ipato.entries);
8169 }
8170 spin_unlock_irqrestore(&card->ip_lock, flags);
8171 return rc;
8172 }
8173
8174 void
8175 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8176 u8 *addr, int mask_bits)
8177 {
8178 struct qeth_ipato_entry *ipatoe, *tmp;
8179 unsigned long flags;
8180
8181 QETH_DBF_TEXT(trace, 2, "delipato");
8182 spin_lock_irqsave(&card->ip_lock, flags);
8183 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8184 if (ipatoe->proto != proto)
8185 continue;
8186 if (!memcmp(ipatoe->addr, addr,
8187 (proto == QETH_PROT_IPV4)? 4:16) &&
8188 (ipatoe->mask_bits == mask_bits)){
8189 list_del(&ipatoe->entry);
8190 kfree(ipatoe);
8191 }
8192 }
8193 spin_unlock_irqrestore(&card->ip_lock, flags);
8194 }
8195
8196 static void
8197 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8198 {
8199 int i, j;
8200 u8 octet;
8201
8202 for (i = 0; i < len; ++i){
8203 octet = addr[i];
8204 for (j = 7; j >= 0; --j){
8205 bits[i*8 + j] = octet & 1;
8206 octet >>= 1;
8207 }
8208 }
8209 }
8210
8211 static int
8212 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8213 {
8214 struct qeth_ipato_entry *ipatoe;
8215 u8 addr_bits[128] = {0, };
8216 u8 ipatoe_bits[128] = {0, };
8217 int rc = 0;
8218
8219 if (!card->ipato.enabled)
8220 return 0;
8221
8222 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8223 (addr->proto == QETH_PROT_IPV4)? 4:16);
8224 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8225 if (addr->proto != ipatoe->proto)
8226 continue;
8227 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8228 (ipatoe->proto==QETH_PROT_IPV4) ?
8229 4:16);
8230 if (addr->proto == QETH_PROT_IPV4)
8231 rc = !memcmp(addr_bits, ipatoe_bits,
8232 min(32, ipatoe->mask_bits));
8233 else
8234 rc = !memcmp(addr_bits, ipatoe_bits,
8235 min(128, ipatoe->mask_bits));
8236 if (rc)
8237 break;
8238 }
8239 /* invert? */
8240 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8241 rc = !rc;
8242 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8243 rc = !rc;
8244
8245 return rc;
8246 }
8247
8248 /*
8249 * VIPA related functions
8250 */
8251 int
8252 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8253 const u8 *addr)
8254 {
8255 struct qeth_ipaddr *ipaddr;
8256 unsigned long flags;
8257 int rc = 0;
8258
8259 ipaddr = qeth_get_addr_buffer(proto);
8260 if (ipaddr){
8261 if (proto == QETH_PROT_IPV4){
8262 QETH_DBF_TEXT(trace, 2, "addvipa4");
8263 memcpy(&ipaddr->u.a4.addr, addr, 4);
8264 ipaddr->u.a4.mask = 0;
8265 #ifdef CONFIG_QETH_IPV6
8266 } else if (proto == QETH_PROT_IPV6){
8267 QETH_DBF_TEXT(trace, 2, "addvipa6");
8268 memcpy(&ipaddr->u.a6.addr, addr, 16);
8269 ipaddr->u.a6.pfxlen = 0;
8270 #endif
8271 }
8272 ipaddr->type = QETH_IP_TYPE_VIPA;
8273 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8274 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8275 } else
8276 return -ENOMEM;
8277 spin_lock_irqsave(&card->ip_lock, flags);
8278 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8279 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8280 rc = -EEXIST;
8281 spin_unlock_irqrestore(&card->ip_lock, flags);
8282 if (rc){
8283 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8284 return rc;
8285 }
8286 if (!qeth_add_ip(card, ipaddr))
8287 kfree(ipaddr);
8288 qeth_set_ip_addr_list(card);
8289 return rc;
8290 }
8291
8292 void
8293 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8294 const u8 *addr)
8295 {
8296 struct qeth_ipaddr *ipaddr;
8297
8298 ipaddr = qeth_get_addr_buffer(proto);
8299 if (ipaddr){
8300 if (proto == QETH_PROT_IPV4){
8301 QETH_DBF_TEXT(trace, 2, "delvipa4");
8302 memcpy(&ipaddr->u.a4.addr, addr, 4);
8303 ipaddr->u.a4.mask = 0;
8304 #ifdef CONFIG_QETH_IPV6
8305 } else if (proto == QETH_PROT_IPV6){
8306 QETH_DBF_TEXT(trace, 2, "delvipa6");
8307 memcpy(&ipaddr->u.a6.addr, addr, 16);
8308 ipaddr->u.a6.pfxlen = 0;
8309 #endif
8310 }
8311 ipaddr->type = QETH_IP_TYPE_VIPA;
8312 } else
8313 return;
8314 if (!qeth_delete_ip(card, ipaddr))
8315 kfree(ipaddr);
8316 qeth_set_ip_addr_list(card);
8317 }
8318
8319 /*
8320 * proxy ARP related functions
8321 */
8322 int
8323 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8324 const u8 *addr)
8325 {
8326 struct qeth_ipaddr *ipaddr;
8327 unsigned long flags;
8328 int rc = 0;
8329
8330 ipaddr = qeth_get_addr_buffer(proto);
8331 if (ipaddr){
8332 if (proto == QETH_PROT_IPV4){
8333 QETH_DBF_TEXT(trace, 2, "addrxip4");
8334 memcpy(&ipaddr->u.a4.addr, addr, 4);
8335 ipaddr->u.a4.mask = 0;
8336 #ifdef CONFIG_QETH_IPV6
8337 } else if (proto == QETH_PROT_IPV6){
8338 QETH_DBF_TEXT(trace, 2, "addrxip6");
8339 memcpy(&ipaddr->u.a6.addr, addr, 16);
8340 ipaddr->u.a6.pfxlen = 0;
8341 #endif
8342 }
8343 ipaddr->type = QETH_IP_TYPE_RXIP;
8344 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8345 ipaddr->del_flags = 0;
8346 } else
8347 return -ENOMEM;
8348 spin_lock_irqsave(&card->ip_lock, flags);
8349 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8350 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8351 rc = -EEXIST;
8352 spin_unlock_irqrestore(&card->ip_lock, flags);
8353 if (rc){
8354 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8355 return rc;
8356 }
8357 if (!qeth_add_ip(card, ipaddr))
8358 kfree(ipaddr);
8359 qeth_set_ip_addr_list(card);
8360 return 0;
8361 }
8362
8363 void
8364 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8365 const u8 *addr)
8366 {
8367 struct qeth_ipaddr *ipaddr;
8368
8369 ipaddr = qeth_get_addr_buffer(proto);
8370 if (ipaddr){
8371 if (proto == QETH_PROT_IPV4){
8372 QETH_DBF_TEXT(trace, 2, "addrxip4");
8373 memcpy(&ipaddr->u.a4.addr, addr, 4);
8374 ipaddr->u.a4.mask = 0;
8375 #ifdef CONFIG_QETH_IPV6
8376 } else if (proto == QETH_PROT_IPV6){
8377 QETH_DBF_TEXT(trace, 2, "addrxip6");
8378 memcpy(&ipaddr->u.a6.addr, addr, 16);
8379 ipaddr->u.a6.pfxlen = 0;
8380 #endif
8381 }
8382 ipaddr->type = QETH_IP_TYPE_RXIP;
8383 } else
8384 return;
8385 if (!qeth_delete_ip(card, ipaddr))
8386 kfree(ipaddr);
8387 qeth_set_ip_addr_list(card);
8388 }
8389
8390 /**
8391 * IP event handler
8392 */
8393 static int
8394 qeth_ip_event(struct notifier_block *this,
8395 unsigned long event,void *ptr)
8396 {
8397 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8398 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8399 struct qeth_ipaddr *addr;
8400 struct qeth_card *card;
8401
8402 QETH_DBF_TEXT(trace,3,"ipevent");
8403 card = qeth_get_card_from_dev(dev);
8404 if (!card)
8405 return NOTIFY_DONE;
8406 if (card->options.layer2)
8407 return NOTIFY_DONE;
8408
8409 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8410 if (addr != NULL) {
8411 addr->u.a4.addr = ifa->ifa_address;
8412 addr->u.a4.mask = ifa->ifa_mask;
8413 addr->type = QETH_IP_TYPE_NORMAL;
8414 } else
8415 goto out;
8416
8417 switch(event) {
8418 case NETDEV_UP:
8419 if (!qeth_add_ip(card, addr))
8420 kfree(addr);
8421 break;
8422 case NETDEV_DOWN:
8423 if (!qeth_delete_ip(card, addr))
8424 kfree(addr);
8425 break;
8426 default:
8427 break;
8428 }
8429 qeth_set_ip_addr_list(card);
8430 out:
8431 return NOTIFY_DONE;
8432 }
8433
8434 static struct notifier_block qeth_ip_notifier = {
8435 qeth_ip_event,
8436 NULL,
8437 };
8438
8439 #ifdef CONFIG_QETH_IPV6
8440 /**
8441 * IPv6 event handler
8442 */
8443 static int
8444 qeth_ip6_event(struct notifier_block *this,
8445 unsigned long event,void *ptr)
8446 {
8447
8448 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8449 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8450 struct qeth_ipaddr *addr;
8451 struct qeth_card *card;
8452
8453 QETH_DBF_TEXT(trace,3,"ip6event");
8454
8455 card = qeth_get_card_from_dev(dev);
8456 if (!card)
8457 return NOTIFY_DONE;
8458 if (!qeth_is_supported(card, IPA_IPV6))
8459 return NOTIFY_DONE;
8460
8461 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8462 if (addr != NULL) {
8463 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8464 addr->u.a6.pfxlen = ifa->prefix_len;
8465 addr->type = QETH_IP_TYPE_NORMAL;
8466 } else
8467 goto out;
8468
8469 switch(event) {
8470 case NETDEV_UP:
8471 if (!qeth_add_ip(card, addr))
8472 kfree(addr);
8473 break;
8474 case NETDEV_DOWN:
8475 if (!qeth_delete_ip(card, addr))
8476 kfree(addr);
8477 break;
8478 default:
8479 break;
8480 }
8481 qeth_set_ip_addr_list(card);
8482 out:
8483 return NOTIFY_DONE;
8484 }
8485
8486 static struct notifier_block qeth_ip6_notifier = {
8487 qeth_ip6_event,
8488 NULL,
8489 };
8490 #endif
8491
8492 static int
8493 __qeth_reboot_event_card(struct device *dev, void *data)
8494 {
8495 struct qeth_card *card;
8496
8497 card = (struct qeth_card *) dev->driver_data;
8498 qeth_clear_ip_list(card, 0, 0);
8499 qeth_qdio_clear_card(card, 0);
8500 return 0;
8501 }
8502
8503 static int
8504 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8505 {
8506 int ret;
8507
8508 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8509 __qeth_reboot_event_card);
8510 return ret ? NOTIFY_BAD : NOTIFY_DONE;
8511 }
8512
8513
8514 static struct notifier_block qeth_reboot_notifier = {
8515 qeth_reboot_event,
8516 NULL,
8517 };
8518
8519 static int
8520 qeth_register_notifiers(void)
8521 {
8522 int r;
8523
8524 QETH_DBF_TEXT(trace,5,"regnotif");
8525 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8526 return r;
8527 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8528 goto out_reboot;
8529 #ifdef CONFIG_QETH_IPV6
8530 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8531 goto out_ipv4;
8532 #endif
8533 return 0;
8534
8535 #ifdef CONFIG_QETH_IPV6
8536 out_ipv4:
8537 unregister_inetaddr_notifier(&qeth_ip_notifier);
8538 #endif
8539 out_reboot:
8540 unregister_reboot_notifier(&qeth_reboot_notifier);
8541 return r;
8542 }
8543
8544 /**
8545 * unregister all event notifiers
8546 */
8547 static void
8548 qeth_unregister_notifiers(void)
8549 {
8550
8551 QETH_DBF_TEXT(trace,5,"unregnot");
8552 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8553 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8554 #ifdef CONFIG_QETH_IPV6
8555 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8556 #endif /* QETH_IPV6 */
8557
8558 }
8559
8560 #ifdef CONFIG_QETH_IPV6
8561 static int
8562 qeth_ipv6_init(void)
8563 {
8564 qeth_old_arp_constructor = arp_tbl.constructor;
8565 write_lock_bh(&arp_tbl.lock);
8566 arp_tbl.constructor = qeth_arp_constructor;
8567 write_unlock_bh(&arp_tbl.lock);
8568
8569 arp_direct_ops = (struct neigh_ops*)
8570 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8571 if (!arp_direct_ops)
8572 return -ENOMEM;
8573
8574 memcpy(arp_direct_ops, &arp_direct_ops_template,
8575 sizeof(struct neigh_ops));
8576
8577 return 0;
8578 }
8579
8580 static void
8581 qeth_ipv6_uninit(void)
8582 {
8583 write_lock_bh(&arp_tbl.lock);
8584 arp_tbl.constructor = qeth_old_arp_constructor;
8585 write_unlock_bh(&arp_tbl.lock);
8586 kfree(arp_direct_ops);
8587 }
8588 #endif /* CONFIG_QETH_IPV6 */
8589
8590 static void
8591 qeth_sysfs_unregister(void)
8592 {
8593 s390_root_dev_unregister(qeth_root_dev);
8594 qeth_remove_driver_attributes();
8595 ccw_driver_unregister(&qeth_ccw_driver);
8596 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8597 }
8598
8599 /**
8600 * register qeth at sysfs
8601 */
8602 static int
8603 qeth_sysfs_register(void)
8604 {
8605 int rc;
8606
8607 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8608 if (rc)
8609 goto out;
8610
8611 rc = ccw_driver_register(&qeth_ccw_driver);
8612 if (rc)
8613 goto out_ccw_driver;
8614
8615 rc = qeth_create_driver_attributes();
8616 if (rc)
8617 goto out_qeth_attr;
8618
8619 qeth_root_dev = s390_root_dev_register("qeth");
8620 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8621 if (!rc)
8622 goto out;
8623
8624 qeth_remove_driver_attributes();
8625 out_qeth_attr:
8626 ccw_driver_unregister(&qeth_ccw_driver);
8627 out_ccw_driver:
8628 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8629 out:
8630 return rc;
8631 }
8632
8633 /***
8634 * init function
8635 */
8636 static int __init
8637 qeth_init(void)
8638 {
8639 int rc;
8640
8641 PRINT_INFO("loading %s\n", version);
8642
8643 INIT_LIST_HEAD(&qeth_card_list.list);
8644 INIT_LIST_HEAD(&qeth_notify_list);
8645 spin_lock_init(&qeth_notify_lock);
8646 rwlock_init(&qeth_card_list.rwlock);
8647
8648 rc = qeth_register_dbf_views();
8649 if (rc)
8650 goto out_err;
8651
8652 rc = qeth_sysfs_register();
8653 if (rc)
8654 goto out_dbf;
8655
8656 #ifdef CONFIG_QETH_IPV6
8657 rc = qeth_ipv6_init();
8658 if (rc) {
8659 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8660 goto out_sysfs;
8661 }
8662 #endif /* QETH_IPV6 */
8663 rc = qeth_register_notifiers();
8664 if (rc)
8665 goto out_ipv6;
8666 rc = qeth_create_procfs_entries();
8667 if (rc)
8668 goto out_notifiers;
8669
8670 return rc;
8671
8672 out_notifiers:
8673 qeth_unregister_notifiers();
8674 out_ipv6:
8675 #ifdef CONFIG_QETH_IPV6
8676 qeth_ipv6_uninit();
8677 out_sysfs:
8678 #endif /* QETH_IPV6 */
8679 qeth_sysfs_unregister();
8680 out_dbf:
8681 qeth_unregister_dbf_views();
8682 out_err:
8683 PRINT_ERR("Initialization failed with code %d\n", rc);
8684 return rc;
8685 }
8686
8687 static void
8688 __exit qeth_exit(void)
8689 {
8690 struct qeth_card *card, *tmp;
8691 unsigned long flags;
8692
8693 QETH_DBF_TEXT(trace,1, "cleanup.");
8694
8695 /*
8696 * Weed would not need to clean up our devices here, because the
8697 * common device layer calls qeth_remove_device for each device
8698 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8699 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8700 * qeth_remove_device called by the common device layer would otherwise
8701 * do a "hard" shutdown (card->use_hard_stop is set to one in
8702 * qeth_remove_device).
8703 */
8704 again:
8705 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8706 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8707 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8708 qeth_set_offline(card->gdev);
8709 qeth_remove_device(card->gdev);
8710 goto again;
8711 }
8712 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8713 #ifdef CONFIG_QETH_IPV6
8714 qeth_ipv6_uninit();
8715 #endif
8716 qeth_unregister_notifiers();
8717 qeth_remove_procfs_entries();
8718 qeth_sysfs_unregister();
8719 qeth_unregister_dbf_views();
8720 printk("qeth: removed\n");
8721 }
8722
8723 EXPORT_SYMBOL(qeth_osn_register);
8724 EXPORT_SYMBOL(qeth_osn_deregister);
8725 EXPORT_SYMBOL(qeth_osn_assist);
8726 module_init(qeth_init);
8727 module_exit(qeth_exit);
8728 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8729 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8730 "Copyright 2000,2003 IBM Corporation\n");
8731
8732 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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