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[NET] driver/s390/net: Checksum annotations.
[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, struct irb *irb)
319 {
320 if (!IS_ERR(irb))
321 return 0;
322
323 switch (PTR_ERR(irb)) {
324 case -EIO:
325 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
326 QETH_DBF_TEXT(trace, 2, "ckirberr");
327 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
328 break;
329 case -ETIMEDOUT:
330 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
331 QETH_DBF_TEXT(trace, 2, "ckirberr");
332 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
333 break;
334 default:
335 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
336 cdev->dev.bus_id);
337 QETH_DBF_TEXT(trace, 2, "ckirberr");
338 QETH_DBF_TEXT(trace, 2, " rc???");
339 }
340 return PTR_ERR(irb);
341 }
342
343 static int
344 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
345 {
346 int dstat,cstat;
347 char *sense;
348
349 sense = (char *) irb->ecw;
350 cstat = irb->scsw.cstat;
351 dstat = irb->scsw.dstat;
352
353 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
354 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
355 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
356 QETH_DBF_TEXT(trace,2, "CGENCHK");
357 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
358 cdev->dev.bus_id, dstat, cstat);
359 HEXDUMP16(WARN, "irb: ", irb);
360 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
361 return 1;
362 }
363
364 if (dstat & DEV_STAT_UNIT_CHECK) {
365 if (sense[SENSE_RESETTING_EVENT_BYTE] &
366 SENSE_RESETTING_EVENT_FLAG) {
367 QETH_DBF_TEXT(trace,2,"REVIND");
368 return 1;
369 }
370 if (sense[SENSE_COMMAND_REJECT_BYTE] &
371 SENSE_COMMAND_REJECT_FLAG) {
372 QETH_DBF_TEXT(trace,2,"CMDREJi");
373 return 0;
374 }
375 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
376 QETH_DBF_TEXT(trace,2,"AFFE");
377 return 1;
378 }
379 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
380 QETH_DBF_TEXT(trace,2,"ZEROSEN");
381 return 0;
382 }
383 QETH_DBF_TEXT(trace,2,"DGENCHK");
384 return 1;
385 }
386 return 0;
387 }
388 static int qeth_issue_next_read(struct qeth_card *);
389
390 /**
391 * interrupt handler
392 */
393 static void
394 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
395 {
396 int rc;
397 int cstat,dstat;
398 struct qeth_cmd_buffer *buffer;
399 struct qeth_channel *channel;
400 struct qeth_card *card;
401
402 QETH_DBF_TEXT(trace,5,"irq");
403
404 if (__qeth_check_irb_error(cdev, irb))
405 return;
406 cstat = irb->scsw.cstat;
407 dstat = irb->scsw.dstat;
408
409 card = CARD_FROM_CDEV(cdev);
410 if (!card)
411 return;
412
413 if (card->read.ccwdev == cdev){
414 channel = &card->read;
415 QETH_DBF_TEXT(trace,5,"read");
416 } else if (card->write.ccwdev == cdev) {
417 channel = &card->write;
418 QETH_DBF_TEXT(trace,5,"write");
419 } else {
420 channel = &card->data;
421 QETH_DBF_TEXT(trace,5,"data");
422 }
423 atomic_set(&channel->irq_pending, 0);
424
425 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
426 channel->state = CH_STATE_STOPPED;
427
428 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
429 channel->state = CH_STATE_HALTED;
430
431 /*let's wake up immediately on data channel*/
432 if ((channel == &card->data) && (intparm != 0))
433 goto out;
434
435 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
436 QETH_DBF_TEXT(trace, 6, "clrchpar");
437 /* we don't have to handle this further */
438 intparm = 0;
439 }
440 if (intparm == QETH_HALT_CHANNEL_PARM) {
441 QETH_DBF_TEXT(trace, 6, "hltchpar");
442 /* we don't have to handle this further */
443 intparm = 0;
444 }
445 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
446 (dstat & DEV_STAT_UNIT_CHECK) ||
447 (cstat)) {
448 if (irb->esw.esw0.erw.cons) {
449 /* TODO: we should make this s390dbf */
450 PRINT_WARN("sense data available on channel %s.\n",
451 CHANNEL_ID(channel));
452 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
453 HEXDUMP16(WARN,"irb: ",irb);
454 HEXDUMP16(WARN,"sense data: ",irb->ecw);
455 }
456 rc = qeth_get_problem(cdev,irb);
457 if (rc) {
458 qeth_schedule_recovery(card);
459 goto out;
460 }
461 }
462
463 if (intparm) {
464 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
465 buffer->state = BUF_STATE_PROCESSED;
466 }
467 if (channel == &card->data)
468 return;
469
470 if (channel == &card->read &&
471 channel->state == CH_STATE_UP)
472 qeth_issue_next_read(card);
473
474 tasklet_schedule(&channel->irq_tasklet);
475 return;
476 out:
477 wake_up(&card->wait_q);
478 }
479
480 /**
481 * tasklet function scheduled from irq handler
482 */
483 static void
484 qeth_irq_tasklet(unsigned long data)
485 {
486 struct qeth_card *card;
487 struct qeth_channel *channel;
488 struct qeth_cmd_buffer *iob;
489 __u8 index;
490
491 QETH_DBF_TEXT(trace,5,"irqtlet");
492 channel = (struct qeth_channel *) data;
493 iob = channel->iob;
494 index = channel->buf_no;
495 card = CARD_FROM_CDEV(channel->ccwdev);
496 while (iob[index].state == BUF_STATE_PROCESSED) {
497 if (iob[index].callback !=NULL) {
498 iob[index].callback(channel,iob + index);
499 }
500 index = (index + 1) % QETH_CMD_BUFFER_NO;
501 }
502 channel->buf_no = index;
503 wake_up(&card->wait_q);
504 }
505
506 static int qeth_stop_card(struct qeth_card *, int);
507
508 static int
509 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
510 {
511 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
512 int rc = 0, rc2 = 0, rc3 = 0;
513 enum qeth_card_states recover_flag;
514
515 QETH_DBF_TEXT(setup, 3, "setoffl");
516 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
517
518 if (card->dev && netif_carrier_ok(card->dev))
519 netif_carrier_off(card->dev);
520 recover_flag = card->state;
521 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
522 PRINT_WARN("Stopping card %s interrupted by user!\n",
523 CARD_BUS_ID(card));
524 return -ERESTARTSYS;
525 }
526 rc = ccw_device_set_offline(CARD_DDEV(card));
527 rc2 = ccw_device_set_offline(CARD_WDEV(card));
528 rc3 = ccw_device_set_offline(CARD_RDEV(card));
529 if (!rc)
530 rc = (rc2) ? rc2 : rc3;
531 if (rc)
532 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
533 if (recover_flag == CARD_STATE_UP)
534 card->state = CARD_STATE_RECOVER;
535 qeth_notify_processes();
536 return 0;
537 }
538
539 static int
540 qeth_set_offline(struct ccwgroup_device *cgdev)
541 {
542 return __qeth_set_offline(cgdev, 0);
543 }
544
545 static int
546 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
547
548
549 static void
550 qeth_remove_device(struct ccwgroup_device *cgdev)
551 {
552 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
553 unsigned long flags;
554
555 QETH_DBF_TEXT(setup, 3, "rmdev");
556 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
557
558 if (!card)
559 return;
560
561 if (qeth_wait_for_threads(card, 0xffffffff))
562 return;
563
564 if (cgdev->state == CCWGROUP_ONLINE){
565 card->use_hard_stop = 1;
566 qeth_set_offline(cgdev);
567 }
568 /* remove form our internal list */
569 write_lock_irqsave(&qeth_card_list.rwlock, flags);
570 list_del(&card->list);
571 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
572 if (card->dev)
573 unregister_netdev(card->dev);
574 qeth_remove_device_attributes(&cgdev->dev);
575 qeth_free_card(card);
576 cgdev->dev.driver_data = NULL;
577 put_device(&cgdev->dev);
578 }
579
580 static int
581 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
582 static int
583 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
584
585 /**
586 * Add/remove address to/from card's ip list, i.e. try to add or remove
587 * reference to/from an IP address that is already registered on the card.
588 * Returns:
589 * 0 address was on card and its reference count has been adjusted,
590 * but is still > 0, so nothing has to be done
591 * also returns 0 if card was not on card and the todo was to delete
592 * the address -> there is also nothing to be done
593 * 1 address was not on card and the todo is to add it to the card's ip
594 * list
595 * -1 address was on card and its reference count has been decremented
596 * to <= 0 by the todo -> address must be removed from card
597 */
598 static int
599 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
600 struct qeth_ipaddr **__addr)
601 {
602 struct qeth_ipaddr *addr;
603 int found = 0;
604
605 list_for_each_entry(addr, &card->ip_list, entry) {
606 if (card->options.layer2) {
607 if ((addr->type == todo->type) &&
608 (memcmp(&addr->mac, &todo->mac,
609 OSA_ADDR_LEN) == 0)) {
610 found = 1;
611 break;
612 }
613 continue;
614 }
615 if ((addr->proto == QETH_PROT_IPV4) &&
616 (todo->proto == QETH_PROT_IPV4) &&
617 (addr->type == todo->type) &&
618 (addr->u.a4.addr == todo->u.a4.addr) &&
619 (addr->u.a4.mask == todo->u.a4.mask)) {
620 found = 1;
621 break;
622 }
623 if ((addr->proto == QETH_PROT_IPV6) &&
624 (todo->proto == QETH_PROT_IPV6) &&
625 (addr->type == todo->type) &&
626 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
627 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
628 sizeof(struct in6_addr)) == 0)) {
629 found = 1;
630 break;
631 }
632 }
633 if (found) {
634 addr->users += todo->users;
635 if (addr->users <= 0){
636 *__addr = addr;
637 return -1;
638 } else {
639 /* for VIPA and RXIP limit refcount to 1 */
640 if (addr->type != QETH_IP_TYPE_NORMAL)
641 addr->users = 1;
642 return 0;
643 }
644 }
645 if (todo->users > 0) {
646 /* for VIPA and RXIP limit refcount to 1 */
647 if (todo->type != QETH_IP_TYPE_NORMAL)
648 todo->users = 1;
649 return 1;
650 } else
651 return 0;
652 }
653
654 static inline int
655 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
656 int same_type)
657 {
658 struct qeth_ipaddr *tmp;
659
660 list_for_each_entry(tmp, list, entry) {
661 if ((tmp->proto == QETH_PROT_IPV4) &&
662 (addr->proto == QETH_PROT_IPV4) &&
663 ((same_type && (tmp->type == addr->type)) ||
664 (!same_type && (tmp->type != addr->type)) ) &&
665 (tmp->u.a4.addr == addr->u.a4.addr) ){
666 return 1;
667 }
668 if ((tmp->proto == QETH_PROT_IPV6) &&
669 (addr->proto == QETH_PROT_IPV6) &&
670 ((same_type && (tmp->type == addr->type)) ||
671 (!same_type && (tmp->type != addr->type)) ) &&
672 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
673 sizeof(struct in6_addr)) == 0) ) {
674 return 1;
675 }
676 }
677 return 0;
678 }
679
680 /*
681 * Add IP to be added to todo list. If there is already an "add todo"
682 * in this list we just incremenent the reference count.
683 * Returns 0 if we just incremented reference count.
684 */
685 static int
686 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
687 {
688 struct qeth_ipaddr *tmp, *t;
689 int found = 0;
690
691 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
692 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
693 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
694 return 0;
695 if (card->options.layer2) {
696 if ((tmp->type == addr->type) &&
697 (tmp->is_multicast == addr->is_multicast) &&
698 (memcmp(&tmp->mac, &addr->mac,
699 OSA_ADDR_LEN) == 0)) {
700 found = 1;
701 break;
702 }
703 continue;
704 }
705 if ((tmp->proto == QETH_PROT_IPV4) &&
706 (addr->proto == QETH_PROT_IPV4) &&
707 (tmp->type == addr->type) &&
708 (tmp->is_multicast == addr->is_multicast) &&
709 (tmp->u.a4.addr == addr->u.a4.addr) &&
710 (tmp->u.a4.mask == addr->u.a4.mask)) {
711 found = 1;
712 break;
713 }
714 if ((tmp->proto == QETH_PROT_IPV6) &&
715 (addr->proto == QETH_PROT_IPV6) &&
716 (tmp->type == addr->type) &&
717 (tmp->is_multicast == addr->is_multicast) &&
718 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
719 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
720 sizeof(struct in6_addr)) == 0)) {
721 found = 1;
722 break;
723 }
724 }
725 if (found){
726 if (addr->users != 0)
727 tmp->users += addr->users;
728 else
729 tmp->users += add? 1:-1;
730 if (tmp->users == 0) {
731 list_del(&tmp->entry);
732 kfree(tmp);
733 }
734 return 0;
735 } else {
736 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
737 list_add(&addr->entry, card->ip_tbd_list);
738 else {
739 if (addr->users == 0)
740 addr->users += add? 1:-1;
741 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
742 qeth_is_addr_covered_by_ipato(card, addr)){
743 QETH_DBF_TEXT(trace, 2, "tkovaddr");
744 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
745 }
746 list_add_tail(&addr->entry, card->ip_tbd_list);
747 }
748 return 1;
749 }
750 }
751
752 /**
753 * Remove IP address from list
754 */
755 static int
756 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
757 {
758 unsigned long flags;
759 int rc = 0;
760
761 QETH_DBF_TEXT(trace, 4, "delip");
762
763 if (card->options.layer2)
764 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
765 else if (addr->proto == QETH_PROT_IPV4)
766 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
767 else {
768 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
769 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
770 }
771 spin_lock_irqsave(&card->ip_lock, flags);
772 rc = __qeth_insert_ip_todo(card, addr, 0);
773 spin_unlock_irqrestore(&card->ip_lock, flags);
774 return rc;
775 }
776
777 static int
778 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
779 {
780 unsigned long flags;
781 int rc = 0;
782
783 QETH_DBF_TEXT(trace, 4, "addip");
784 if (card->options.layer2)
785 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
786 else if (addr->proto == QETH_PROT_IPV4)
787 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
788 else {
789 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
790 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
791 }
792 spin_lock_irqsave(&card->ip_lock, flags);
793 rc = __qeth_insert_ip_todo(card, addr, 1);
794 spin_unlock_irqrestore(&card->ip_lock, flags);
795 return rc;
796 }
797
798 static inline void
799 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
800 {
801 struct qeth_ipaddr *addr, *tmp;
802 int rc;
803 again:
804 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
805 if (addr->is_multicast) {
806 spin_unlock_irqrestore(&card->ip_lock, *flags);
807 rc = qeth_deregister_addr_entry(card, addr);
808 spin_lock_irqsave(&card->ip_lock, *flags);
809 if (!rc) {
810 list_del(&addr->entry);
811 kfree(addr);
812 goto again;
813 }
814 }
815 }
816 }
817
818 static void
819 qeth_set_ip_addr_list(struct qeth_card *card)
820 {
821 struct list_head *tbd_list;
822 struct qeth_ipaddr *todo, *addr;
823 unsigned long flags;
824 int rc;
825
826 QETH_DBF_TEXT(trace, 2, "sdiplist");
827 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
828
829 spin_lock_irqsave(&card->ip_lock, flags);
830 tbd_list = card->ip_tbd_list;
831 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
832 if (!card->ip_tbd_list) {
833 QETH_DBF_TEXT(trace, 0, "silnomem");
834 card->ip_tbd_list = tbd_list;
835 spin_unlock_irqrestore(&card->ip_lock, flags);
836 return;
837 } else
838 INIT_LIST_HEAD(card->ip_tbd_list);
839
840 while (!list_empty(tbd_list)){
841 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
842 list_del(&todo->entry);
843 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
844 __qeth_delete_all_mc(card, &flags);
845 kfree(todo);
846 continue;
847 }
848 rc = __qeth_ref_ip_on_card(card, todo, &addr);
849 if (rc == 0) {
850 /* nothing to be done; only adjusted refcount */
851 kfree(todo);
852 } else if (rc == 1) {
853 /* new entry to be added to on-card list */
854 spin_unlock_irqrestore(&card->ip_lock, flags);
855 rc = qeth_register_addr_entry(card, todo);
856 spin_lock_irqsave(&card->ip_lock, flags);
857 if (!rc)
858 list_add_tail(&todo->entry, &card->ip_list);
859 else
860 kfree(todo);
861 } else if (rc == -1) {
862 /* on-card entry to be removed */
863 list_del_init(&addr->entry);
864 spin_unlock_irqrestore(&card->ip_lock, flags);
865 rc = qeth_deregister_addr_entry(card, addr);
866 spin_lock_irqsave(&card->ip_lock, flags);
867 if (!rc)
868 kfree(addr);
869 else
870 list_add_tail(&addr->entry, &card->ip_list);
871 kfree(todo);
872 }
873 }
874 spin_unlock_irqrestore(&card->ip_lock, flags);
875 kfree(tbd_list);
876 }
877
878 static void qeth_delete_mc_addresses(struct qeth_card *);
879 static void qeth_add_multicast_ipv4(struct qeth_card *);
880 static void qeth_layer2_add_multicast(struct qeth_card *);
881 #ifdef CONFIG_QETH_IPV6
882 static void qeth_add_multicast_ipv6(struct qeth_card *);
883 #endif
884
885 static inline int
886 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
887 {
888 unsigned long flags;
889
890 spin_lock_irqsave(&card->thread_mask_lock, flags);
891 if ( !(card->thread_allowed_mask & thread) ||
892 (card->thread_start_mask & thread) ) {
893 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
894 return -EPERM;
895 }
896 card->thread_start_mask |= thread;
897 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
898 return 0;
899 }
900
901 static void
902 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
903 {
904 unsigned long flags;
905
906 spin_lock_irqsave(&card->thread_mask_lock, flags);
907 card->thread_start_mask &= ~thread;
908 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
909 wake_up(&card->wait_q);
910 }
911
912 static void
913 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
914 {
915 unsigned long flags;
916
917 spin_lock_irqsave(&card->thread_mask_lock, flags);
918 card->thread_running_mask &= ~thread;
919 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
920 wake_up(&card->wait_q);
921 }
922
923 static inline int
924 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
925 {
926 unsigned long flags;
927 int rc = 0;
928
929 spin_lock_irqsave(&card->thread_mask_lock, flags);
930 if (card->thread_start_mask & thread){
931 if ((card->thread_allowed_mask & thread) &&
932 !(card->thread_running_mask & thread)){
933 rc = 1;
934 card->thread_start_mask &= ~thread;
935 card->thread_running_mask |= thread;
936 } else
937 rc = -EPERM;
938 }
939 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
940 return rc;
941 }
942
943 static int
944 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
945 {
946 int rc = 0;
947
948 wait_event(card->wait_q,
949 (rc = __qeth_do_run_thread(card, thread)) >= 0);
950 return rc;
951 }
952
953 static int
954 qeth_register_ip_addresses(void *ptr)
955 {
956 struct qeth_card *card;
957
958 card = (struct qeth_card *) ptr;
959 daemonize("qeth_reg_ip");
960 QETH_DBF_TEXT(trace,4,"regipth1");
961 if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
962 return 0;
963 QETH_DBF_TEXT(trace,4,"regipth2");
964 qeth_set_ip_addr_list(card);
965 qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
966 return 0;
967 }
968
969 /*
970 * Drive the SET_PROMISC_MODE thread
971 */
972 static int
973 qeth_set_promisc_mode(void *ptr)
974 {
975 struct qeth_card *card = (struct qeth_card *) ptr;
976
977 daemonize("qeth_setprm");
978 QETH_DBF_TEXT(trace,4,"setprm1");
979 if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
980 return 0;
981 QETH_DBF_TEXT(trace,4,"setprm2");
982 qeth_setadp_promisc_mode(card);
983 qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
984 return 0;
985 }
986
987 static int
988 qeth_recover(void *ptr)
989 {
990 struct qeth_card *card;
991 int rc = 0;
992
993 card = (struct qeth_card *) ptr;
994 daemonize("qeth_recover");
995 QETH_DBF_TEXT(trace,2,"recover1");
996 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
997 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
998 return 0;
999 QETH_DBF_TEXT(trace,2,"recover2");
1000 PRINT_WARN("Recovery of device %s started ...\n",
1001 CARD_BUS_ID(card));
1002 card->use_hard_stop = 1;
1003 __qeth_set_offline(card->gdev,1);
1004 rc = __qeth_set_online(card->gdev,1);
1005 if (!rc)
1006 PRINT_INFO("Device %s successfully recovered!\n",
1007 CARD_BUS_ID(card));
1008 else
1009 PRINT_INFO("Device %s could not be recovered!\n",
1010 CARD_BUS_ID(card));
1011 /* don't run another scheduled recovery */
1012 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1013 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1014 return 0;
1015 }
1016
1017 void
1018 qeth_schedule_recovery(struct qeth_card *card)
1019 {
1020 QETH_DBF_TEXT(trace,2,"startrec");
1021 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1022 schedule_work(&card->kernel_thread_starter);
1023 }
1024
1025 static int
1026 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1027 {
1028 unsigned long flags;
1029 int rc = 0;
1030
1031 spin_lock_irqsave(&card->thread_mask_lock, flags);
1032 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1033 (u8) card->thread_start_mask,
1034 (u8) card->thread_allowed_mask,
1035 (u8) card->thread_running_mask);
1036 rc = (card->thread_start_mask & thread);
1037 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1038 return rc;
1039 }
1040
1041 static void
1042 qeth_start_kernel_thread(struct qeth_card *card)
1043 {
1044 QETH_DBF_TEXT(trace , 2, "strthrd");
1045
1046 if (card->read.state != CH_STATE_UP &&
1047 card->write.state != CH_STATE_UP)
1048 return;
1049
1050 if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1051 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1052 if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1053 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1054 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1055 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1056 }
1057
1058
1059 static void
1060 qeth_set_intial_options(struct qeth_card *card)
1061 {
1062 card->options.route4.type = NO_ROUTER;
1063 #ifdef CONFIG_QETH_IPV6
1064 card->options.route6.type = NO_ROUTER;
1065 #endif /* QETH_IPV6 */
1066 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1067 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1068 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1069 card->options.fake_broadcast = 0;
1070 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1071 card->options.fake_ll = 0;
1072 if (card->info.type == QETH_CARD_TYPE_OSN)
1073 card->options.layer2 = 1;
1074 else
1075 card->options.layer2 = 0;
1076 card->options.performance_stats = 1;
1077 }
1078
1079 /**
1080 * initialize channels ,card and all state machines
1081 */
1082 static int
1083 qeth_setup_card(struct qeth_card *card)
1084 {
1085
1086 QETH_DBF_TEXT(setup, 2, "setupcrd");
1087 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1088
1089 card->read.state = CH_STATE_DOWN;
1090 card->write.state = CH_STATE_DOWN;
1091 card->data.state = CH_STATE_DOWN;
1092 card->state = CARD_STATE_DOWN;
1093 card->lan_online = 0;
1094 card->use_hard_stop = 0;
1095 card->dev = NULL;
1096 #ifdef CONFIG_QETH_VLAN
1097 spin_lock_init(&card->vlanlock);
1098 card->vlangrp = NULL;
1099 #endif
1100 spin_lock_init(&card->lock);
1101 spin_lock_init(&card->ip_lock);
1102 spin_lock_init(&card->thread_mask_lock);
1103 card->thread_start_mask = 0;
1104 card->thread_allowed_mask = 0;
1105 card->thread_running_mask = 0;
1106 INIT_WORK(&card->kernel_thread_starter,
1107 (void *)qeth_start_kernel_thread,card);
1108 INIT_LIST_HEAD(&card->ip_list);
1109 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1110 if (!card->ip_tbd_list) {
1111 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1112 return -ENOMEM;
1113 }
1114 INIT_LIST_HEAD(card->ip_tbd_list);
1115 INIT_LIST_HEAD(&card->cmd_waiter_list);
1116 init_waitqueue_head(&card->wait_q);
1117 /* intial options */
1118 qeth_set_intial_options(card);
1119 /* IP address takeover */
1120 INIT_LIST_HEAD(&card->ipato.entries);
1121 card->ipato.enabled = 0;
1122 card->ipato.invert4 = 0;
1123 card->ipato.invert6 = 0;
1124 /* init QDIO stuff */
1125 qeth_init_qdio_info(card);
1126 return 0;
1127 }
1128
1129 static int
1130 is_1920_device (struct qeth_card *card)
1131 {
1132 int single_queue = 0;
1133 struct ccw_device *ccwdev;
1134 struct channelPath_dsc {
1135 u8 flags;
1136 u8 lsn;
1137 u8 desc;
1138 u8 chpid;
1139 u8 swla;
1140 u8 zeroes;
1141 u8 chla;
1142 u8 chpp;
1143 } *chp_dsc;
1144
1145 QETH_DBF_TEXT(setup, 2, "chk_1920");
1146
1147 ccwdev = card->data.ccwdev;
1148 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1149 if (chp_dsc != NULL) {
1150 /* CHPP field bit 6 == 1 -> single queue */
1151 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1152 kfree(chp_dsc);
1153 }
1154 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1155 return single_queue;
1156 }
1157
1158 static int
1159 qeth_determine_card_type(struct qeth_card *card)
1160 {
1161 int i = 0;
1162
1163 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1164
1165 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1166 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1167 while (known_devices[i][4]) {
1168 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1169 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1170 card->info.type = known_devices[i][4];
1171 card->qdio.no_out_queues = known_devices[i][8];
1172 card->info.is_multicast_different = known_devices[i][9];
1173 if (is_1920_device(card)) {
1174 PRINT_INFO("Priority Queueing not able "
1175 "due to hardware limitations!\n");
1176 card->qdio.no_out_queues = 1;
1177 card->qdio.default_out_queue = 0;
1178 }
1179 return 0;
1180 }
1181 i++;
1182 }
1183 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1184 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1185 return -ENOENT;
1186 }
1187
1188 static int
1189 qeth_probe_device(struct ccwgroup_device *gdev)
1190 {
1191 struct qeth_card *card;
1192 struct device *dev;
1193 unsigned long flags;
1194 int rc;
1195
1196 QETH_DBF_TEXT(setup, 2, "probedev");
1197
1198 dev = &gdev->dev;
1199 if (!get_device(dev))
1200 return -ENODEV;
1201
1202 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1203
1204 card = qeth_alloc_card();
1205 if (!card) {
1206 put_device(dev);
1207 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1208 return -ENOMEM;
1209 }
1210 card->read.ccwdev = gdev->cdev[0];
1211 card->write.ccwdev = gdev->cdev[1];
1212 card->data.ccwdev = gdev->cdev[2];
1213 gdev->dev.driver_data = card;
1214 card->gdev = gdev;
1215 gdev->cdev[0]->handler = qeth_irq;
1216 gdev->cdev[1]->handler = qeth_irq;
1217 gdev->cdev[2]->handler = qeth_irq;
1218
1219 if ((rc = qeth_determine_card_type(card))){
1220 PRINT_WARN("%s: not a valid card type\n", __func__);
1221 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1222 put_device(dev);
1223 qeth_free_card(card);
1224 return rc;
1225 }
1226 if ((rc = qeth_setup_card(card))){
1227 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1228 put_device(dev);
1229 qeth_free_card(card);
1230 return rc;
1231 }
1232 rc = qeth_create_device_attributes(dev);
1233 if (rc) {
1234 put_device(dev);
1235 qeth_free_card(card);
1236 return rc;
1237 }
1238 /* insert into our internal list */
1239 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1240 list_add_tail(&card->list, &qeth_card_list.list);
1241 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1242 return rc;
1243 }
1244
1245
1246 static int
1247 qeth_get_unitaddr(struct qeth_card *card)
1248 {
1249 int length;
1250 char *prcd;
1251 int rc;
1252
1253 QETH_DBF_TEXT(setup, 2, "getunit");
1254 rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1255 if (rc) {
1256 PRINT_ERR("read_conf_data for device %s returned %i\n",
1257 CARD_DDEV_ID(card), rc);
1258 return rc;
1259 }
1260 card->info.chpid = prcd[30];
1261 card->info.unit_addr2 = prcd[31];
1262 card->info.cula = prcd[63];
1263 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1264 (prcd[0x11] == _ascebc['M']));
1265 return 0;
1266 }
1267
1268 static void
1269 qeth_init_tokens(struct qeth_card *card)
1270 {
1271 card->token.issuer_rm_w = 0x00010103UL;
1272 card->token.cm_filter_w = 0x00010108UL;
1273 card->token.cm_connection_w = 0x0001010aUL;
1274 card->token.ulp_filter_w = 0x0001010bUL;
1275 card->token.ulp_connection_w = 0x0001010dUL;
1276 }
1277
1278 static inline __u16
1279 raw_devno_from_bus_id(char *id)
1280 {
1281 id += (strlen(id) - 4);
1282 return (__u16) simple_strtoul(id, &id, 16);
1283 }
1284 /**
1285 * setup channel
1286 */
1287 static void
1288 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1289 {
1290 struct qeth_card *card;
1291
1292 QETH_DBF_TEXT(trace, 4, "setupccw");
1293 card = CARD_FROM_CDEV(channel->ccwdev);
1294 if (channel == &card->read)
1295 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1296 else
1297 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1298 channel->ccw.count = len;
1299 channel->ccw.cda = (__u32) __pa(iob);
1300 }
1301
1302 /**
1303 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1304 */
1305 static struct qeth_cmd_buffer *
1306 __qeth_get_buffer(struct qeth_channel *channel)
1307 {
1308 __u8 index;
1309
1310 QETH_DBF_TEXT(trace, 6, "getbuff");
1311 index = channel->io_buf_no;
1312 do {
1313 if (channel->iob[index].state == BUF_STATE_FREE) {
1314 channel->iob[index].state = BUF_STATE_LOCKED;
1315 channel->io_buf_no = (channel->io_buf_no + 1) %
1316 QETH_CMD_BUFFER_NO;
1317 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1318 return channel->iob + index;
1319 }
1320 index = (index + 1) % QETH_CMD_BUFFER_NO;
1321 } while(index != channel->io_buf_no);
1322
1323 return NULL;
1324 }
1325
1326 /**
1327 * release command buffer
1328 */
1329 static void
1330 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1331 {
1332 unsigned long flags;
1333
1334 QETH_DBF_TEXT(trace, 6, "relbuff");
1335 spin_lock_irqsave(&channel->iob_lock, flags);
1336 memset(iob->data, 0, QETH_BUFSIZE);
1337 iob->state = BUF_STATE_FREE;
1338 iob->callback = qeth_send_control_data_cb;
1339 iob->rc = 0;
1340 spin_unlock_irqrestore(&channel->iob_lock, flags);
1341 }
1342
1343 static struct qeth_cmd_buffer *
1344 qeth_get_buffer(struct qeth_channel *channel)
1345 {
1346 struct qeth_cmd_buffer *buffer = NULL;
1347 unsigned long flags;
1348
1349 spin_lock_irqsave(&channel->iob_lock, flags);
1350 buffer = __qeth_get_buffer(channel);
1351 spin_unlock_irqrestore(&channel->iob_lock, flags);
1352 return buffer;
1353 }
1354
1355 static struct qeth_cmd_buffer *
1356 qeth_wait_for_buffer(struct qeth_channel *channel)
1357 {
1358 struct qeth_cmd_buffer *buffer;
1359 wait_event(channel->wait_q,
1360 ((buffer = qeth_get_buffer(channel)) != NULL));
1361 return buffer;
1362 }
1363
1364 static void
1365 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1366 {
1367 int cnt;
1368
1369 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1370 qeth_release_buffer(channel,&channel->iob[cnt]);
1371 channel->buf_no = 0;
1372 channel->io_buf_no = 0;
1373 }
1374
1375 /**
1376 * start IDX for read and write channel
1377 */
1378 static int
1379 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1380 void (*idx_reply_cb)(struct qeth_channel *,
1381 struct qeth_cmd_buffer *))
1382 {
1383 struct qeth_cmd_buffer *iob;
1384 unsigned long flags;
1385 int rc;
1386 struct qeth_card *card;
1387
1388 QETH_DBF_TEXT(setup, 2, "idxanswr");
1389 card = CARD_FROM_CDEV(channel->ccwdev);
1390 iob = qeth_get_buffer(channel);
1391 iob->callback = idx_reply_cb;
1392 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1393 channel->ccw.count = QETH_BUFSIZE;
1394 channel->ccw.cda = (__u32) __pa(iob->data);
1395
1396 wait_event(card->wait_q,
1397 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1398 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1399 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1400 rc = ccw_device_start(channel->ccwdev,
1401 &channel->ccw,(addr_t) iob, 0, 0);
1402 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1403
1404 if (rc) {
1405 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1406 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1407 atomic_set(&channel->irq_pending, 0);
1408 wake_up(&card->wait_q);
1409 return rc;
1410 }
1411 rc = wait_event_interruptible_timeout(card->wait_q,
1412 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1413 if (rc == -ERESTARTSYS)
1414 return rc;
1415 if (channel->state != CH_STATE_UP){
1416 rc = -ETIME;
1417 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1418 qeth_clear_cmd_buffers(channel);
1419 } else
1420 rc = 0;
1421 return rc;
1422 }
1423
1424 static int
1425 qeth_idx_activate_channel(struct qeth_channel *channel,
1426 void (*idx_reply_cb)(struct qeth_channel *,
1427 struct qeth_cmd_buffer *))
1428 {
1429 struct qeth_card *card;
1430 struct qeth_cmd_buffer *iob;
1431 unsigned long flags;
1432 __u16 temp;
1433 int rc;
1434
1435 card = CARD_FROM_CDEV(channel->ccwdev);
1436
1437 QETH_DBF_TEXT(setup, 2, "idxactch");
1438
1439 iob = qeth_get_buffer(channel);
1440 iob->callback = idx_reply_cb;
1441 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1442 channel->ccw.count = IDX_ACTIVATE_SIZE;
1443 channel->ccw.cda = (__u32) __pa(iob->data);
1444 if (channel == &card->write) {
1445 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1446 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1447 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1448 card->seqno.trans_hdr++;
1449 } else {
1450 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1451 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1452 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1453 }
1454 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1455 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1456 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1457 &card->info.func_level,sizeof(__u16));
1458 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1459 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1460 temp = (card->info.cula << 8) + card->info.unit_addr2;
1461 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1462
1463 wait_event(card->wait_q,
1464 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1465 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1466 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1467 rc = ccw_device_start(channel->ccwdev,
1468 &channel->ccw,(addr_t) iob, 0, 0);
1469 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1470
1471 if (rc) {
1472 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1473 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1474 atomic_set(&channel->irq_pending, 0);
1475 wake_up(&card->wait_q);
1476 return rc;
1477 }
1478 rc = wait_event_interruptible_timeout(card->wait_q,
1479 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1480 if (rc == -ERESTARTSYS)
1481 return rc;
1482 if (channel->state != CH_STATE_ACTIVATING) {
1483 PRINT_WARN("qeth: IDX activate timed out!\n");
1484 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1485 qeth_clear_cmd_buffers(channel);
1486 return -ETIME;
1487 }
1488 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1489 }
1490
1491 static int
1492 qeth_peer_func_level(int level)
1493 {
1494 if ((level & 0xff) == 8)
1495 return (level & 0xff) + 0x400;
1496 if (((level >> 8) & 3) == 1)
1497 return (level & 0xff) + 0x200;
1498 return level;
1499 }
1500
1501 static void
1502 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1503 {
1504 struct qeth_card *card;
1505 __u16 temp;
1506
1507 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1508
1509 if (channel->state == CH_STATE_DOWN) {
1510 channel->state = CH_STATE_ACTIVATING;
1511 goto out;
1512 }
1513 card = CARD_FROM_CDEV(channel->ccwdev);
1514
1515 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1516 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1517 "reply\n", CARD_WDEV_ID(card));
1518 goto out;
1519 }
1520 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1521 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1522 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1523 "function level mismatch "
1524 "(sent: 0x%x, received: 0x%x)\n",
1525 CARD_WDEV_ID(card), card->info.func_level, temp);
1526 goto out;
1527 }
1528 channel->state = CH_STATE_UP;
1529 out:
1530 qeth_release_buffer(channel, iob);
1531 }
1532
1533 static int
1534 qeth_check_idx_response(unsigned char *buffer)
1535 {
1536 if (!buffer)
1537 return 0;
1538
1539 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1540 if ((buffer[2] & 0xc0) == 0xc0) {
1541 PRINT_WARN("received an IDX TERMINATE "
1542 "with cause code 0x%02x%s\n",
1543 buffer[4],
1544 ((buffer[4] == 0x22) ?
1545 " -- try another portname" : ""));
1546 QETH_DBF_TEXT(trace, 2, "ckidxres");
1547 QETH_DBF_TEXT(trace, 2, " idxterm");
1548 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1549 return -EIO;
1550 }
1551 return 0;
1552 }
1553
1554 static void
1555 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1556 {
1557 struct qeth_card *card;
1558 __u16 temp;
1559
1560 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1561 if (channel->state == CH_STATE_DOWN) {
1562 channel->state = CH_STATE_ACTIVATING;
1563 goto out;
1564 }
1565
1566 card = CARD_FROM_CDEV(channel->ccwdev);
1567 if (qeth_check_idx_response(iob->data)) {
1568 goto out;
1569 }
1570 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1571 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1572 "reply\n", CARD_RDEV_ID(card));
1573 goto out;
1574 }
1575
1576 /**
1577 * temporary fix for microcode bug
1578 * to revert it,replace OR by AND
1579 */
1580 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1581 (card->info.type == QETH_CARD_TYPE_OSAE) )
1582 card->info.portname_required = 1;
1583
1584 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1585 if (temp != qeth_peer_func_level(card->info.func_level)) {
1586 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1587 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1588 CARD_RDEV_ID(card), card->info.func_level, temp);
1589 goto out;
1590 }
1591 memcpy(&card->token.issuer_rm_r,
1592 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1593 QETH_MPC_TOKEN_LENGTH);
1594 memcpy(&card->info.mcl_level[0],
1595 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1596 channel->state = CH_STATE_UP;
1597 out:
1598 qeth_release_buffer(channel,iob);
1599 }
1600
1601 static int
1602 qeth_issue_next_read(struct qeth_card *card)
1603 {
1604 int rc;
1605 struct qeth_cmd_buffer *iob;
1606
1607 QETH_DBF_TEXT(trace,5,"issnxrd");
1608 if (card->read.state != CH_STATE_UP)
1609 return -EIO;
1610 iob = qeth_get_buffer(&card->read);
1611 if (!iob) {
1612 PRINT_WARN("issue_next_read failed: no iob available!\n");
1613 return -ENOMEM;
1614 }
1615 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1616 wait_event(card->wait_q,
1617 atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1618 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1619 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1620 (addr_t) iob, 0, 0);
1621 if (rc) {
1622 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1623 atomic_set(&card->read.irq_pending, 0);
1624 qeth_schedule_recovery(card);
1625 wake_up(&card->wait_q);
1626 }
1627 return rc;
1628 }
1629
1630 static struct qeth_reply *
1631 qeth_alloc_reply(struct qeth_card *card)
1632 {
1633 struct qeth_reply *reply;
1634
1635 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1636 if (reply){
1637 atomic_set(&reply->refcnt, 1);
1638 reply->card = card;
1639 };
1640 return reply;
1641 }
1642
1643 static void
1644 qeth_get_reply(struct qeth_reply *reply)
1645 {
1646 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1647 atomic_inc(&reply->refcnt);
1648 }
1649
1650 static void
1651 qeth_put_reply(struct qeth_reply *reply)
1652 {
1653 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1654 if (atomic_dec_and_test(&reply->refcnt))
1655 kfree(reply);
1656 }
1657
1658 static void
1659 qeth_cmd_timeout(unsigned long data)
1660 {
1661 struct qeth_reply *reply, *list_reply, *r;
1662 unsigned long flags;
1663
1664 reply = (struct qeth_reply *) data;
1665 spin_lock_irqsave(&reply->card->lock, flags);
1666 list_for_each_entry_safe(list_reply, r,
1667 &reply->card->cmd_waiter_list, list) {
1668 if (reply == list_reply){
1669 qeth_get_reply(reply);
1670 list_del_init(&reply->list);
1671 spin_unlock_irqrestore(&reply->card->lock, flags);
1672 reply->rc = -ETIME;
1673 reply->received = 1;
1674 wake_up(&reply->wait_q);
1675 qeth_put_reply(reply);
1676 return;
1677 }
1678 }
1679 spin_unlock_irqrestore(&reply->card->lock, flags);
1680 }
1681
1682
1683 static struct qeth_ipa_cmd *
1684 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1685 {
1686 struct qeth_ipa_cmd *cmd = NULL;
1687
1688 QETH_DBF_TEXT(trace,5,"chkipad");
1689 if (IS_IPA(iob->data)){
1690 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1691 if (IS_IPA_REPLY(cmd))
1692 return cmd;
1693 else {
1694 switch (cmd->hdr.command) {
1695 case IPA_CMD_STOPLAN:
1696 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1697 "there is a network problem or "
1698 "someone pulled the cable or "
1699 "disabled the port.\n",
1700 QETH_CARD_IFNAME(card),
1701 card->info.chpid);
1702 card->lan_online = 0;
1703 if (card->dev && netif_carrier_ok(card->dev))
1704 netif_carrier_off(card->dev);
1705 return NULL;
1706 case IPA_CMD_STARTLAN:
1707 PRINT_INFO("Link reestablished on %s "
1708 "(CHPID 0x%X). Scheduling "
1709 "IP address reset.\n",
1710 QETH_CARD_IFNAME(card),
1711 card->info.chpid);
1712 netif_carrier_on(card->dev);
1713 qeth_schedule_recovery(card);
1714 return NULL;
1715 case IPA_CMD_MODCCID:
1716 return cmd;
1717 case IPA_CMD_REGISTER_LOCAL_ADDR:
1718 QETH_DBF_TEXT(trace,3, "irla");
1719 break;
1720 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1721 QETH_DBF_TEXT(trace,3, "urla");
1722 break;
1723 default:
1724 PRINT_WARN("Received data is IPA "
1725 "but not a reply!\n");
1726 break;
1727 }
1728 }
1729 }
1730 return cmd;
1731 }
1732
1733 /**
1734 * wake all waiting ipa commands
1735 */
1736 static void
1737 qeth_clear_ipacmd_list(struct qeth_card *card)
1738 {
1739 struct qeth_reply *reply, *r;
1740 unsigned long flags;
1741
1742 QETH_DBF_TEXT(trace, 4, "clipalst");
1743
1744 spin_lock_irqsave(&card->lock, flags);
1745 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1746 qeth_get_reply(reply);
1747 reply->rc = -EIO;
1748 reply->received = 1;
1749 list_del_init(&reply->list);
1750 wake_up(&reply->wait_q);
1751 qeth_put_reply(reply);
1752 }
1753 spin_unlock_irqrestore(&card->lock, flags);
1754 }
1755
1756 static void
1757 qeth_send_control_data_cb(struct qeth_channel *channel,
1758 struct qeth_cmd_buffer *iob)
1759 {
1760 struct qeth_card *card;
1761 struct qeth_reply *reply, *r;
1762 struct qeth_ipa_cmd *cmd;
1763 unsigned long flags;
1764 int keep_reply;
1765
1766 QETH_DBF_TEXT(trace,4,"sndctlcb");
1767
1768 card = CARD_FROM_CDEV(channel->ccwdev);
1769 if (qeth_check_idx_response(iob->data)) {
1770 qeth_clear_ipacmd_list(card);
1771 qeth_schedule_recovery(card);
1772 goto out;
1773 }
1774
1775 cmd = qeth_check_ipa_data(card, iob);
1776 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1777 goto out;
1778 /*in case of OSN : check if cmd is set */
1779 if (card->info.type == QETH_CARD_TYPE_OSN &&
1780 cmd &&
1781 cmd->hdr.command != IPA_CMD_STARTLAN &&
1782 card->osn_info.assist_cb != NULL) {
1783 card->osn_info.assist_cb(card->dev, cmd);
1784 goto out;
1785 }
1786
1787 spin_lock_irqsave(&card->lock, flags);
1788 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1789 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1790 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1791 qeth_get_reply(reply);
1792 list_del_init(&reply->list);
1793 spin_unlock_irqrestore(&card->lock, flags);
1794 keep_reply = 0;
1795 if (reply->callback != NULL) {
1796 if (cmd) {
1797 reply->offset = (__u16)((char*)cmd -
1798 (char *)iob->data);
1799 keep_reply = reply->callback(card,
1800 reply,
1801 (unsigned long)cmd);
1802 } else
1803 keep_reply = reply->callback(card,
1804 reply,
1805 (unsigned long)iob);
1806 }
1807 if (cmd)
1808 reply->rc = (u16) cmd->hdr.return_code;
1809 else if (iob->rc)
1810 reply->rc = iob->rc;
1811 if (keep_reply) {
1812 spin_lock_irqsave(&card->lock, flags);
1813 list_add_tail(&reply->list,
1814 &card->cmd_waiter_list);
1815 spin_unlock_irqrestore(&card->lock, flags);
1816 } else {
1817 reply->received = 1;
1818 wake_up(&reply->wait_q);
1819 }
1820 qeth_put_reply(reply);
1821 goto out;
1822 }
1823 }
1824 spin_unlock_irqrestore(&card->lock, flags);
1825 out:
1826 memcpy(&card->seqno.pdu_hdr_ack,
1827 QETH_PDU_HEADER_SEQ_NO(iob->data),
1828 QETH_SEQ_NO_LENGTH);
1829 qeth_release_buffer(channel,iob);
1830 }
1831
1832 static inline void
1833 qeth_prepare_control_data(struct qeth_card *card, int len,
1834 struct qeth_cmd_buffer *iob)
1835 {
1836 qeth_setup_ccw(&card->write,iob->data,len);
1837 iob->callback = qeth_release_buffer;
1838
1839 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1840 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1841 card->seqno.trans_hdr++;
1842 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1843 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1844 card->seqno.pdu_hdr++;
1845 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1846 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1847 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1848 }
1849
1850 static int
1851 qeth_send_control_data(struct qeth_card *card, int len,
1852 struct qeth_cmd_buffer *iob,
1853 int (*reply_cb)
1854 (struct qeth_card *, struct qeth_reply*, unsigned long),
1855 void *reply_param)
1856
1857 {
1858 int rc;
1859 unsigned long flags;
1860 struct qeth_reply *reply = NULL;
1861 struct timer_list timer;
1862
1863 QETH_DBF_TEXT(trace, 2, "sendctl");
1864
1865 reply = qeth_alloc_reply(card);
1866 if (!reply) {
1867 PRINT_WARN("Could no alloc qeth_reply!\n");
1868 return -ENOMEM;
1869 }
1870 reply->callback = reply_cb;
1871 reply->param = reply_param;
1872 if (card->state == CARD_STATE_DOWN)
1873 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1874 else
1875 reply->seqno = card->seqno.ipa++;
1876 init_timer(&timer);
1877 timer.function = qeth_cmd_timeout;
1878 timer.data = (unsigned long) reply;
1879 init_waitqueue_head(&reply->wait_q);
1880 spin_lock_irqsave(&card->lock, flags);
1881 list_add_tail(&reply->list, &card->cmd_waiter_list);
1882 spin_unlock_irqrestore(&card->lock, flags);
1883 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1884 wait_event(card->wait_q,
1885 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1886 qeth_prepare_control_data(card, len, iob);
1887 if (IS_IPA(iob->data))
1888 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1889 else
1890 timer.expires = jiffies + QETH_TIMEOUT;
1891 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1892 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1893 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1894 (addr_t) iob, 0, 0);
1895 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1896 if (rc){
1897 PRINT_WARN("qeth_send_control_data: "
1898 "ccw_device_start rc = %i\n", rc);
1899 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1900 spin_lock_irqsave(&card->lock, flags);
1901 list_del_init(&reply->list);
1902 qeth_put_reply(reply);
1903 spin_unlock_irqrestore(&card->lock, flags);
1904 qeth_release_buffer(iob->channel, iob);
1905 atomic_set(&card->write.irq_pending, 0);
1906 wake_up(&card->wait_q);
1907 return rc;
1908 }
1909 add_timer(&timer);
1910 wait_event(reply->wait_q, reply->received);
1911 del_timer_sync(&timer);
1912 rc = reply->rc;
1913 qeth_put_reply(reply);
1914 return rc;
1915 }
1916
1917 static int
1918 qeth_osn_send_control_data(struct qeth_card *card, int len,
1919 struct qeth_cmd_buffer *iob)
1920 {
1921 unsigned long flags;
1922 int rc = 0;
1923
1924 QETH_DBF_TEXT(trace, 5, "osndctrd");
1925
1926 wait_event(card->wait_q,
1927 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1928 qeth_prepare_control_data(card, len, iob);
1929 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1930 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1931 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1932 (addr_t) iob, 0, 0);
1933 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1934 if (rc){
1935 PRINT_WARN("qeth_osn_send_control_data: "
1936 "ccw_device_start rc = %i\n", rc);
1937 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1938 qeth_release_buffer(iob->channel, iob);
1939 atomic_set(&card->write.irq_pending, 0);
1940 wake_up(&card->wait_q);
1941 }
1942 return rc;
1943 }
1944
1945 static inline void
1946 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1947 char prot_type)
1948 {
1949 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1950 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1951 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1952 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1953 }
1954
1955 static int
1956 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1957 int data_len)
1958 {
1959 u16 s1, s2;
1960
1961 QETH_DBF_TEXT(trace,4,"osndipa");
1962
1963 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1964 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1965 s2 = (u16)data_len;
1966 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1967 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1968 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1969 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1970 return qeth_osn_send_control_data(card, s1, iob);
1971 }
1972
1973 static int
1974 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1975 int (*reply_cb)
1976 (struct qeth_card *,struct qeth_reply*, unsigned long),
1977 void *reply_param)
1978 {
1979 int rc;
1980 char prot_type;
1981
1982 QETH_DBF_TEXT(trace,4,"sendipa");
1983
1984 if (card->options.layer2)
1985 if (card->info.type == QETH_CARD_TYPE_OSN)
1986 prot_type = QETH_PROT_OSN2;
1987 else
1988 prot_type = QETH_PROT_LAYER2;
1989 else
1990 prot_type = QETH_PROT_TCPIP;
1991 qeth_prepare_ipa_cmd(card,iob,prot_type);
1992 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1993 reply_cb, reply_param);
1994 return rc;
1995 }
1996
1997
1998 static int
1999 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2000 unsigned long data)
2001 {
2002 struct qeth_cmd_buffer *iob;
2003
2004 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2005
2006 iob = (struct qeth_cmd_buffer *) data;
2007 memcpy(&card->token.cm_filter_r,
2008 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2009 QETH_MPC_TOKEN_LENGTH);
2010 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2011 return 0;
2012 }
2013
2014 static int
2015 qeth_cm_enable(struct qeth_card *card)
2016 {
2017 int rc;
2018 struct qeth_cmd_buffer *iob;
2019
2020 QETH_DBF_TEXT(setup,2,"cmenable");
2021
2022 iob = qeth_wait_for_buffer(&card->write);
2023 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2024 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2025 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2026 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2027 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2028
2029 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2030 qeth_cm_enable_cb, NULL);
2031 return rc;
2032 }
2033
2034 static int
2035 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2036 unsigned long data)
2037 {
2038
2039 struct qeth_cmd_buffer *iob;
2040
2041 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2042
2043 iob = (struct qeth_cmd_buffer *) data;
2044 memcpy(&card->token.cm_connection_r,
2045 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2046 QETH_MPC_TOKEN_LENGTH);
2047 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2048 return 0;
2049 }
2050
2051 static int
2052 qeth_cm_setup(struct qeth_card *card)
2053 {
2054 int rc;
2055 struct qeth_cmd_buffer *iob;
2056
2057 QETH_DBF_TEXT(setup,2,"cmsetup");
2058
2059 iob = qeth_wait_for_buffer(&card->write);
2060 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2061 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2062 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2063 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2064 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2065 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2066 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2067 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2068 qeth_cm_setup_cb, NULL);
2069 return rc;
2070
2071 }
2072
2073 static int
2074 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2075 unsigned long data)
2076 {
2077
2078 __u16 mtu, framesize;
2079 __u16 len;
2080 __u8 link_type;
2081 struct qeth_cmd_buffer *iob;
2082
2083 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2084
2085 iob = (struct qeth_cmd_buffer *) data;
2086 memcpy(&card->token.ulp_filter_r,
2087 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2088 QETH_MPC_TOKEN_LENGTH);
2089 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2090 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2091 mtu = qeth_get_mtu_outof_framesize(framesize);
2092 if (!mtu) {
2093 iob->rc = -EINVAL;
2094 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2095 return 0;
2096 }
2097 card->info.max_mtu = mtu;
2098 card->info.initial_mtu = mtu;
2099 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2100 } else {
2101 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2102 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2103 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2104 }
2105
2106 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2107 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2108 memcpy(&link_type,
2109 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2110 card->info.link_type = link_type;
2111 } else
2112 card->info.link_type = 0;
2113 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2114 return 0;
2115 }
2116
2117 static int
2118 qeth_ulp_enable(struct qeth_card *card)
2119 {
2120 int rc;
2121 char prot_type;
2122 struct qeth_cmd_buffer *iob;
2123
2124 /*FIXME: trace view callbacks*/
2125 QETH_DBF_TEXT(setup,2,"ulpenabl");
2126
2127 iob = qeth_wait_for_buffer(&card->write);
2128 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2129
2130 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2131 (__u8) card->info.portno;
2132 if (card->options.layer2)
2133 if (card->info.type == QETH_CARD_TYPE_OSN)
2134 prot_type = QETH_PROT_OSN2;
2135 else
2136 prot_type = QETH_PROT_LAYER2;
2137 else
2138 prot_type = QETH_PROT_TCPIP;
2139
2140 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2141 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2142 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2143 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2144 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2145 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2146 card->info.portname, 9);
2147 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2148 qeth_ulp_enable_cb, NULL);
2149 return rc;
2150
2151 }
2152
2153 static inline __u16
2154 __raw_devno_from_bus_id(char *id)
2155 {
2156 id += (strlen(id) - 4);
2157 return (__u16) simple_strtoul(id, &id, 16);
2158 }
2159
2160 static int
2161 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2162 unsigned long data)
2163 {
2164 struct qeth_cmd_buffer *iob;
2165
2166 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2167
2168 iob = (struct qeth_cmd_buffer *) data;
2169 memcpy(&card->token.ulp_connection_r,
2170 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2171 QETH_MPC_TOKEN_LENGTH);
2172 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2173 return 0;
2174 }
2175
2176 static int
2177 qeth_ulp_setup(struct qeth_card *card)
2178 {
2179 int rc;
2180 __u16 temp;
2181 struct qeth_cmd_buffer *iob;
2182
2183 QETH_DBF_TEXT(setup,2,"ulpsetup");
2184
2185 iob = qeth_wait_for_buffer(&card->write);
2186 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2187
2188 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2189 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2190 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2191 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2192 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2193 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2194
2195 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2196 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2197 temp = (card->info.cula << 8) + card->info.unit_addr2;
2198 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2199 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2200 qeth_ulp_setup_cb, NULL);
2201 return rc;
2202 }
2203
2204 static inline int
2205 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2206 unsigned int siga_error, const char *dbftext)
2207 {
2208 if (qdio_error || siga_error) {
2209 QETH_DBF_TEXT(trace, 2, dbftext);
2210 QETH_DBF_TEXT(qerr, 2, dbftext);
2211 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2212 buf->element[15].flags & 0xff);
2213 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2214 buf->element[14].flags & 0xff);
2215 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2216 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2217 return 1;
2218 }
2219 return 0;
2220 }
2221
2222 static inline struct sk_buff *
2223 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2224 {
2225 struct sk_buff* skb;
2226 int add_len;
2227
2228 add_len = 0;
2229 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2230 add_len = sizeof(struct qeth_hdr);
2231 #ifdef CONFIG_QETH_VLAN
2232 else
2233 add_len = VLAN_HLEN;
2234 #endif
2235 skb = dev_alloc_skb(length + add_len);
2236 if (skb && add_len)
2237 skb_reserve(skb, add_len);
2238 return skb;
2239 }
2240
2241 static inline struct sk_buff *
2242 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2243 struct qdio_buffer_element **__element, int *__offset,
2244 struct qeth_hdr **hdr)
2245 {
2246 struct qdio_buffer_element *element = *__element;
2247 int offset = *__offset;
2248 struct sk_buff *skb = NULL;
2249 int skb_len;
2250 void *data_ptr;
2251 int data_len;
2252
2253 QETH_DBF_TEXT(trace,6,"nextskb");
2254 /* qeth_hdr must not cross element boundaries */
2255 if (element->length < offset + sizeof(struct qeth_hdr)){
2256 if (qeth_is_last_sbale(element))
2257 return NULL;
2258 element++;
2259 offset = 0;
2260 if (element->length < sizeof(struct qeth_hdr))
2261 return NULL;
2262 }
2263 *hdr = element->addr + offset;
2264
2265 offset += sizeof(struct qeth_hdr);
2266 if (card->options.layer2)
2267 if (card->info.type == QETH_CARD_TYPE_OSN)
2268 skb_len = (*hdr)->hdr.osn.pdu_length;
2269 else
2270 skb_len = (*hdr)->hdr.l2.pkt_length;
2271 else
2272 skb_len = (*hdr)->hdr.l3.length;
2273
2274 if (!skb_len)
2275 return NULL;
2276 if (card->options.fake_ll){
2277 if(card->dev->type == ARPHRD_IEEE802_TR){
2278 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2279 goto no_mem;
2280 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2281 } else {
2282 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2283 goto no_mem;
2284 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2285 }
2286 } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2287 goto no_mem;
2288 data_ptr = element->addr + offset;
2289 while (skb_len) {
2290 data_len = min(skb_len, (int)(element->length - offset));
2291 if (data_len)
2292 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2293 skb_len -= data_len;
2294 if (skb_len){
2295 if (qeth_is_last_sbale(element)){
2296 QETH_DBF_TEXT(trace,4,"unexeob");
2297 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2298 QETH_DBF_TEXT(qerr,2,"unexeob");
2299 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2300 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2301 dev_kfree_skb_any(skb);
2302 card->stats.rx_errors++;
2303 return NULL;
2304 }
2305 element++;
2306 offset = 0;
2307 data_ptr = element->addr;
2308 } else {
2309 offset += data_len;
2310 }
2311 }
2312 *__element = element;
2313 *__offset = offset;
2314 return skb;
2315 no_mem:
2316 if (net_ratelimit()){
2317 PRINT_WARN("No memory for packet received on %s.\n",
2318 QETH_CARD_IFNAME(card));
2319 QETH_DBF_TEXT(trace,2,"noskbmem");
2320 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2321 }
2322 card->stats.rx_dropped++;
2323 return NULL;
2324 }
2325
2326 static inline __be16
2327 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2328 {
2329 struct qeth_card *card;
2330 struct ethhdr *eth;
2331
2332 QETH_DBF_TEXT(trace,6,"typtrans");
2333
2334 card = (struct qeth_card *)dev->priv;
2335 #ifdef CONFIG_TR
2336 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2337 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2338 return tr_type_trans(skb,dev);
2339 #endif /* CONFIG_TR */
2340 skb->mac.raw = skb->data;
2341 skb_pull(skb, ETH_HLEN );
2342 eth = eth_hdr(skb);
2343
2344 if (*eth->h_dest & 1) {
2345 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2346 skb->pkt_type = PACKET_BROADCAST;
2347 else
2348 skb->pkt_type = PACKET_MULTICAST;
2349 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2350 skb->pkt_type = PACKET_OTHERHOST;
2351
2352 if (ntohs(eth->h_proto) >= 1536)
2353 return eth->h_proto;
2354 if (*(unsigned short *) (skb->data) == 0xFFFF)
2355 return htons(ETH_P_802_3);
2356 return htons(ETH_P_802_2);
2357 }
2358
2359 static inline void
2360 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2361 struct qeth_hdr *hdr)
2362 {
2363 struct trh_hdr *fake_hdr;
2364 struct trllc *fake_llc;
2365 struct iphdr *ip_hdr;
2366
2367 QETH_DBF_TEXT(trace,5,"skbfktr");
2368 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2369 /* this is a fake ethernet header */
2370 fake_hdr = (struct trh_hdr *) skb->mac.raw;
2371
2372 /* the destination MAC address */
2373 switch (skb->pkt_type){
2374 case PACKET_MULTICAST:
2375 switch (skb->protocol){
2376 #ifdef CONFIG_QETH_IPV6
2377 case __constant_htons(ETH_P_IPV6):
2378 ndisc_mc_map((struct in6_addr *)
2379 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2380 fake_hdr->daddr, card->dev, 0);
2381 break;
2382 #endif /* CONFIG_QETH_IPV6 */
2383 case __constant_htons(ETH_P_IP):
2384 ip_hdr = (struct iphdr *)skb->data;
2385 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2386 break;
2387 default:
2388 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2389 }
2390 break;
2391 case PACKET_BROADCAST:
2392 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2393 break;
2394 default:
2395 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2396 }
2397 /* the source MAC address */
2398 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2399 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2400 else
2401 memset(fake_hdr->saddr, 0, TR_ALEN);
2402 fake_hdr->rcf=0;
2403 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2404 fake_llc->dsap = EXTENDED_SAP;
2405 fake_llc->ssap = EXTENDED_SAP;
2406 fake_llc->llc = UI_CMD;
2407 fake_llc->protid[0] = 0;
2408 fake_llc->protid[1] = 0;
2409 fake_llc->protid[2] = 0;
2410 fake_llc->ethertype = ETH_P_IP;
2411 }
2412
2413 static inline void
2414 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2415 struct qeth_hdr *hdr)
2416 {
2417 struct ethhdr *fake_hdr;
2418 struct iphdr *ip_hdr;
2419
2420 QETH_DBF_TEXT(trace,5,"skbfketh");
2421 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2422 /* this is a fake ethernet header */
2423 fake_hdr = (struct ethhdr *) skb->mac.raw;
2424
2425 /* the destination MAC address */
2426 switch (skb->pkt_type){
2427 case PACKET_MULTICAST:
2428 switch (skb->protocol){
2429 #ifdef CONFIG_QETH_IPV6
2430 case __constant_htons(ETH_P_IPV6):
2431 ndisc_mc_map((struct in6_addr *)
2432 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2433 fake_hdr->h_dest, card->dev, 0);
2434 break;
2435 #endif /* CONFIG_QETH_IPV6 */
2436 case __constant_htons(ETH_P_IP):
2437 ip_hdr = (struct iphdr *)skb->data;
2438 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2439 break;
2440 default:
2441 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2442 }
2443 break;
2444 case PACKET_BROADCAST:
2445 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2446 break;
2447 default:
2448 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2449 }
2450 /* the source MAC address */
2451 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2452 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2453 else
2454 memset(fake_hdr->h_source, 0, ETH_ALEN);
2455 /* the protocol */
2456 fake_hdr->h_proto = skb->protocol;
2457 }
2458
2459 static inline void
2460 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2461 struct qeth_hdr *hdr)
2462 {
2463 if (card->dev->type == ARPHRD_IEEE802_TR)
2464 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2465 else
2466 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2467 }
2468
2469 static inline __u16
2470 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2471 struct qeth_hdr *hdr)
2472 {
2473 unsigned short vlan_id = 0;
2474 #ifdef CONFIG_QETH_VLAN
2475 struct vlan_hdr *vhdr;
2476 #endif
2477
2478 skb->pkt_type = PACKET_HOST;
2479 skb->protocol = qeth_type_trans(skb, skb->dev);
2480 if (card->options.checksum_type == NO_CHECKSUMMING)
2481 skb->ip_summed = CHECKSUM_UNNECESSARY;
2482 else
2483 skb->ip_summed = CHECKSUM_NONE;
2484 #ifdef CONFIG_QETH_VLAN
2485 if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2486 vhdr = (struct vlan_hdr *) skb->data;
2487 skb->protocol =
2488 __constant_htons(vhdr->h_vlan_encapsulated_proto);
2489 vlan_id = hdr->hdr.l2.vlan_id;
2490 skb_pull(skb, VLAN_HLEN);
2491 }
2492 #endif
2493 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2494 return vlan_id;
2495 }
2496
2497 static inline __u16
2498 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2499 struct qeth_hdr *hdr)
2500 {
2501 unsigned short vlan_id = 0;
2502 #ifdef CONFIG_QETH_IPV6
2503 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2504 skb->pkt_type = PACKET_HOST;
2505 skb->protocol = qeth_type_trans(skb, card->dev);
2506 return 0;
2507 }
2508 #endif /* CONFIG_QETH_IPV6 */
2509 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2510 ETH_P_IP);
2511 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2512 case QETH_CAST_UNICAST:
2513 skb->pkt_type = PACKET_HOST;
2514 break;
2515 case QETH_CAST_MULTICAST:
2516 skb->pkt_type = PACKET_MULTICAST;
2517 card->stats.multicast++;
2518 break;
2519 case QETH_CAST_BROADCAST:
2520 skb->pkt_type = PACKET_BROADCAST;
2521 card->stats.multicast++;
2522 break;
2523 case QETH_CAST_ANYCAST:
2524 case QETH_CAST_NOCAST:
2525 default:
2526 skb->pkt_type = PACKET_HOST;
2527 }
2528
2529 if (hdr->hdr.l3.ext_flags &
2530 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2531 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2532 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2533 }
2534
2535 if (card->options.fake_ll)
2536 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2537 else
2538 skb->mac.raw = skb->data;
2539 skb->ip_summed = card->options.checksum_type;
2540 if (card->options.checksum_type == HW_CHECKSUMMING){
2541 if ( (hdr->hdr.l3.ext_flags &
2542 (QETH_HDR_EXT_CSUM_HDR_REQ |
2543 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2544 (QETH_HDR_EXT_CSUM_HDR_REQ |
2545 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2546 skb->ip_summed = CHECKSUM_UNNECESSARY;
2547 else
2548 skb->ip_summed = SW_CHECKSUMMING;
2549 }
2550 return vlan_id;
2551 }
2552
2553 static inline void
2554 qeth_process_inbound_buffer(struct qeth_card *card,
2555 struct qeth_qdio_buffer *buf, int index)
2556 {
2557 struct qdio_buffer_element *element;
2558 struct sk_buff *skb;
2559 struct qeth_hdr *hdr;
2560 int offset;
2561 int rxrc;
2562 __u16 vlan_tag = 0;
2563 __u16 *vlan_addr;
2564
2565 /* get first element of current buffer */
2566 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2567 offset = 0;
2568 if (card->options.performance_stats)
2569 card->perf_stats.bufs_rec++;
2570 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2571 &offset, &hdr))) {
2572 skb->dev = card->dev;
2573 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2574 vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2575 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2576 vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2577 else { /*in case of OSN*/
2578 skb_push(skb, sizeof(struct qeth_hdr));
2579 memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2580 }
2581 /* is device UP ? */
2582 if (!(card->dev->flags & IFF_UP)){
2583 dev_kfree_skb_any(skb);
2584 continue;
2585 }
2586 if (card->info.type == QETH_CARD_TYPE_OSN)
2587 rxrc = card->osn_info.data_cb(skb);
2588 else
2589 #ifdef CONFIG_QETH_VLAN
2590 if (vlan_tag)
2591 if (card->vlangrp)
2592 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2593 else {
2594 dev_kfree_skb_any(skb);
2595 continue;
2596 }
2597 else
2598 #endif
2599 rxrc = netif_rx(skb);
2600 card->dev->last_rx = jiffies;
2601 card->stats.rx_packets++;
2602 card->stats.rx_bytes += skb->len;
2603 }
2604 }
2605
2606 static inline struct qeth_buffer_pool_entry *
2607 qeth_get_buffer_pool_entry(struct qeth_card *card)
2608 {
2609 struct qeth_buffer_pool_entry *entry;
2610
2611 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2612 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2613 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2614 struct qeth_buffer_pool_entry, list);
2615 list_del_init(&entry->list);
2616 return entry;
2617 }
2618 return NULL;
2619 }
2620
2621 static inline void
2622 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2623 {
2624 struct qeth_buffer_pool_entry *pool_entry;
2625 int i;
2626
2627 pool_entry = qeth_get_buffer_pool_entry(card);
2628 /*
2629 * since the buffer is accessed only from the input_tasklet
2630 * there shouldn't be a need to synchronize; also, since we use
2631 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2632 * buffers
2633 */
2634 BUG_ON(!pool_entry);
2635
2636 buf->pool_entry = pool_entry;
2637 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2638 buf->buffer->element[i].length = PAGE_SIZE;
2639 buf->buffer->element[i].addr = pool_entry->elements[i];
2640 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2641 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2642 else
2643 buf->buffer->element[i].flags = 0;
2644 }
2645 buf->state = QETH_QDIO_BUF_EMPTY;
2646 }
2647
2648 static inline void
2649 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2650 struct qeth_qdio_out_buffer *buf)
2651 {
2652 int i;
2653 struct sk_buff *skb;
2654
2655 /* is PCI flag set on buffer? */
2656 if (buf->buffer->element[0].flags & 0x40)
2657 atomic_dec(&queue->set_pci_flags_count);
2658
2659 while ((skb = skb_dequeue(&buf->skb_list))){
2660 atomic_dec(&skb->users);
2661 dev_kfree_skb_any(skb);
2662 }
2663 qeth_eddp_buf_release_contexts(buf);
2664 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2665 buf->buffer->element[i].length = 0;
2666 buf->buffer->element[i].addr = NULL;
2667 buf->buffer->element[i].flags = 0;
2668 }
2669 buf->next_element_to_fill = 0;
2670 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2671 }
2672
2673 static inline void
2674 qeth_queue_input_buffer(struct qeth_card *card, int index)
2675 {
2676 struct qeth_qdio_q *queue = card->qdio.in_q;
2677 int count;
2678 int i;
2679 int rc;
2680
2681 QETH_DBF_TEXT(trace,6,"queinbuf");
2682 count = (index < queue->next_buf_to_init)?
2683 card->qdio.in_buf_pool.buf_count -
2684 (queue->next_buf_to_init - index) :
2685 card->qdio.in_buf_pool.buf_count -
2686 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2687 /* only requeue at a certain threshold to avoid SIGAs */
2688 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2689 for (i = queue->next_buf_to_init;
2690 i < queue->next_buf_to_init + count; ++i)
2691 qeth_init_input_buffer(card,
2692 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2693 /*
2694 * according to old code it should be avoided to requeue all
2695 * 128 buffers in order to benefit from PCI avoidance.
2696 * this function keeps at least one buffer (the buffer at
2697 * 'index') un-requeued -> this buffer is the first buffer that
2698 * will be requeued the next time
2699 */
2700 if (card->options.performance_stats) {
2701 card->perf_stats.inbound_do_qdio_cnt++;
2702 card->perf_stats.inbound_do_qdio_start_time =
2703 qeth_get_micros();
2704 }
2705 rc = do_QDIO(CARD_DDEV(card),
2706 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2707 0, queue->next_buf_to_init, count, NULL);
2708 if (card->options.performance_stats)
2709 card->perf_stats.inbound_do_qdio_time +=
2710 qeth_get_micros() -
2711 card->perf_stats.inbound_do_qdio_start_time;
2712 if (rc){
2713 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2714 "return %i (device %s).\n",
2715 rc, CARD_DDEV_ID(card));
2716 QETH_DBF_TEXT(trace,2,"qinberr");
2717 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2718 }
2719 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2720 QDIO_MAX_BUFFERS_PER_Q;
2721 }
2722 }
2723
2724 static inline void
2725 qeth_put_buffer_pool_entry(struct qeth_card *card,
2726 struct qeth_buffer_pool_entry *entry)
2727 {
2728 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2729 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2730 }
2731
2732 static void
2733 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2734 unsigned int qdio_err, unsigned int siga_err,
2735 unsigned int queue, int first_element, int count,
2736 unsigned long card_ptr)
2737 {
2738 struct net_device *net_dev;
2739 struct qeth_card *card;
2740 struct qeth_qdio_buffer *buffer;
2741 int index;
2742 int i;
2743
2744 QETH_DBF_TEXT(trace, 6, "qdinput");
2745 card = (struct qeth_card *) card_ptr;
2746 net_dev = card->dev;
2747 if (card->options.performance_stats) {
2748 card->perf_stats.inbound_cnt++;
2749 card->perf_stats.inbound_start_time = qeth_get_micros();
2750 }
2751 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2752 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2753 QETH_DBF_TEXT(trace, 1,"qdinchk");
2754 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2755 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2756 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2757 qeth_schedule_recovery(card);
2758 return;
2759 }
2760 }
2761 for (i = first_element; i < (first_element + count); ++i) {
2762 index = i % QDIO_MAX_BUFFERS_PER_Q;
2763 buffer = &card->qdio.in_q->bufs[index];
2764 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2765 qeth_check_qdio_errors(buffer->buffer,
2766 qdio_err, siga_err,"qinerr")))
2767 qeth_process_inbound_buffer(card, buffer, index);
2768 /* clear buffer and give back to hardware */
2769 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2770 qeth_queue_input_buffer(card, index);
2771 }
2772 if (card->options.performance_stats)
2773 card->perf_stats.inbound_time += qeth_get_micros() -
2774 card->perf_stats.inbound_start_time;
2775 }
2776
2777 static inline int
2778 qeth_handle_send_error(struct qeth_card *card,
2779 struct qeth_qdio_out_buffer *buffer,
2780 unsigned int qdio_err, unsigned int siga_err)
2781 {
2782 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2783 int cc = siga_err & 3;
2784
2785 QETH_DBF_TEXT(trace, 6, "hdsnderr");
2786 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2787 switch (cc) {
2788 case 0:
2789 if (qdio_err){
2790 QETH_DBF_TEXT(trace, 1,"lnkfail");
2791 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2792 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2793 (u16)qdio_err, (u8)sbalf15);
2794 return QETH_SEND_ERROR_LINK_FAILURE;
2795 }
2796 return QETH_SEND_ERROR_NONE;
2797 case 2:
2798 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2799 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2800 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2801 return QETH_SEND_ERROR_KICK_IT;
2802 }
2803 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2804 return QETH_SEND_ERROR_RETRY;
2805 return QETH_SEND_ERROR_LINK_FAILURE;
2806 /* look at qdio_error and sbalf 15 */
2807 case 1:
2808 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2809 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2810 return QETH_SEND_ERROR_LINK_FAILURE;
2811 case 3:
2812 default:
2813 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2814 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2815 return QETH_SEND_ERROR_KICK_IT;
2816 }
2817 }
2818
2819 void
2820 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2821 int index, int count)
2822 {
2823 struct qeth_qdio_out_buffer *buf;
2824 int rc;
2825 int i;
2826
2827 QETH_DBF_TEXT(trace, 6, "flushbuf");
2828
2829 for (i = index; i < index + count; ++i) {
2830 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2831 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2832 SBAL_FLAGS_LAST_ENTRY;
2833
2834 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2835 continue;
2836
2837 if (!queue->do_pack){
2838 if ((atomic_read(&queue->used_buffers) >=
2839 (QETH_HIGH_WATERMARK_PACK -
2840 QETH_WATERMARK_PACK_FUZZ)) &&
2841 !atomic_read(&queue->set_pci_flags_count)){
2842 /* it's likely that we'll go to packing
2843 * mode soon */
2844 atomic_inc(&queue->set_pci_flags_count);
2845 buf->buffer->element[0].flags |= 0x40;
2846 }
2847 } else {
2848 if (!atomic_read(&queue->set_pci_flags_count)){
2849 /*
2850 * there's no outstanding PCI any more, so we
2851 * have to request a PCI to be sure the the PCI
2852 * will wake at some time in the future then we
2853 * can flush packed buffers that might still be
2854 * hanging around, which can happen if no
2855 * further send was requested by the stack
2856 */
2857 atomic_inc(&queue->set_pci_flags_count);
2858 buf->buffer->element[0].flags |= 0x40;
2859 }
2860 }
2861 }
2862
2863 queue->card->dev->trans_start = jiffies;
2864 if (queue->card->options.performance_stats) {
2865 queue->card->perf_stats.outbound_do_qdio_cnt++;
2866 queue->card->perf_stats.outbound_do_qdio_start_time =
2867 qeth_get_micros();
2868 }
2869 if (under_int)
2870 rc = do_QDIO(CARD_DDEV(queue->card),
2871 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2872 queue->queue_no, index, count, NULL);
2873 else
2874 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2875 queue->queue_no, index, count, NULL);
2876 if (queue->card->options.performance_stats)
2877 queue->card->perf_stats.outbound_do_qdio_time +=
2878 qeth_get_micros() -
2879 queue->card->perf_stats.outbound_do_qdio_start_time;
2880 if (rc){
2881 QETH_DBF_TEXT(trace, 2, "flushbuf");
2882 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2883 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2884 queue->card->stats.tx_errors += count;
2885 /* this must not happen under normal circumstances. if it
2886 * happens something is really wrong -> recover */
2887 qeth_schedule_recovery(queue->card);
2888 return;
2889 }
2890 atomic_add(count, &queue->used_buffers);
2891 if (queue->card->options.performance_stats)
2892 queue->card->perf_stats.bufs_sent += count;
2893 }
2894
2895 /*
2896 * Switched to packing state if the number of used buffers on a queue
2897 * reaches a certain limit.
2898 */
2899 static inline void
2900 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2901 {
2902 if (!queue->do_pack) {
2903 if (atomic_read(&queue->used_buffers)
2904 >= QETH_HIGH_WATERMARK_PACK){
2905 /* switch non-PACKING -> PACKING */
2906 QETH_DBF_TEXT(trace, 6, "np->pack");
2907 if (queue->card->options.performance_stats)
2908 queue->card->perf_stats.sc_dp_p++;
2909 queue->do_pack = 1;
2910 }
2911 }
2912 }
2913
2914 /*
2915 * Switches from packing to non-packing mode. If there is a packing
2916 * buffer on the queue this buffer will be prepared to be flushed.
2917 * In that case 1 is returned to inform the caller. If no buffer
2918 * has to be flushed, zero is returned.
2919 */
2920 static inline int
2921 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2922 {
2923 struct qeth_qdio_out_buffer *buffer;
2924 int flush_count = 0;
2925
2926 if (queue->do_pack) {
2927 if (atomic_read(&queue->used_buffers)
2928 <= QETH_LOW_WATERMARK_PACK) {
2929 /* switch PACKING -> non-PACKING */
2930 QETH_DBF_TEXT(trace, 6, "pack->np");
2931 if (queue->card->options.performance_stats)
2932 queue->card->perf_stats.sc_p_dp++;
2933 queue->do_pack = 0;
2934 /* flush packing buffers */
2935 buffer = &queue->bufs[queue->next_buf_to_fill];
2936 if ((atomic_read(&buffer->state) ==
2937 QETH_QDIO_BUF_EMPTY) &&
2938 (buffer->next_element_to_fill > 0)) {
2939 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2940 flush_count++;
2941 queue->next_buf_to_fill =
2942 (queue->next_buf_to_fill + 1) %
2943 QDIO_MAX_BUFFERS_PER_Q;
2944 }
2945 }
2946 }
2947 return flush_count;
2948 }
2949
2950 /*
2951 * Called to flush a packing buffer if no more pci flags are on the queue.
2952 * Checks if there is a packing buffer and prepares it to be flushed.
2953 * In that case returns 1, otherwise zero.
2954 */
2955 static inline int
2956 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2957 {
2958 struct qeth_qdio_out_buffer *buffer;
2959
2960 buffer = &queue->bufs[queue->next_buf_to_fill];
2961 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2962 (buffer->next_element_to_fill > 0)){
2963 /* it's a packing buffer */
2964 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2965 queue->next_buf_to_fill =
2966 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2967 return 1;
2968 }
2969 return 0;
2970 }
2971
2972 static inline void
2973 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2974 {
2975 int index;
2976 int flush_cnt = 0;
2977 int q_was_packing = 0;
2978
2979 /*
2980 * check if weed have to switch to non-packing mode or if
2981 * we have to get a pci flag out on the queue
2982 */
2983 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2984 !atomic_read(&queue->set_pci_flags_count)){
2985 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2986 QETH_OUT_Q_UNLOCKED) {
2987 /*
2988 * If we get in here, there was no action in
2989 * do_send_packet. So, we check if there is a
2990 * packing buffer to be flushed here.
2991 */
2992 netif_stop_queue(queue->card->dev);
2993 index = queue->next_buf_to_fill;
2994 q_was_packing = queue->do_pack;
2995 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2996 if (!flush_cnt &&
2997 !atomic_read(&queue->set_pci_flags_count))
2998 flush_cnt +=
2999 qeth_flush_buffers_on_no_pci(queue);
3000 if (queue->card->options.performance_stats &&
3001 q_was_packing)
3002 queue->card->perf_stats.bufs_sent_pack +=
3003 flush_cnt;
3004 if (flush_cnt)
3005 qeth_flush_buffers(queue, 1, index, flush_cnt);
3006 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3007 }
3008 }
3009 }
3010
3011 static void
3012 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3013 unsigned int qdio_error, unsigned int siga_error,
3014 unsigned int __queue, int first_element, int count,
3015 unsigned long card_ptr)
3016 {
3017 struct qeth_card *card = (struct qeth_card *) card_ptr;
3018 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3019 struct qeth_qdio_out_buffer *buffer;
3020 int i;
3021
3022 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3023 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3024 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3025 QETH_DBF_TEXT(trace, 2, "achkcond");
3026 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3027 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3028 netif_stop_queue(card->dev);
3029 qeth_schedule_recovery(card);
3030 return;
3031 }
3032 }
3033 if (card->options.performance_stats) {
3034 card->perf_stats.outbound_handler_cnt++;
3035 card->perf_stats.outbound_handler_start_time =
3036 qeth_get_micros();
3037 }
3038 for(i = first_element; i < (first_element + count); ++i){
3039 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3040 /*we only handle the KICK_IT error by doing a recovery */
3041 if (qeth_handle_send_error(card, buffer,
3042 qdio_error, siga_error)
3043 == QETH_SEND_ERROR_KICK_IT){
3044 netif_stop_queue(card->dev);
3045 qeth_schedule_recovery(card);
3046 return;
3047 }
3048 qeth_clear_output_buffer(queue, buffer);
3049 }
3050 atomic_sub(count, &queue->used_buffers);
3051 /* check if we need to do something on this outbound queue */
3052 if (card->info.type != QETH_CARD_TYPE_IQD)
3053 qeth_check_outbound_queue(queue);
3054
3055 netif_wake_queue(queue->card->dev);
3056 if (card->options.performance_stats)
3057 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3058 card->perf_stats.outbound_handler_start_time;
3059 }
3060
3061 static void
3062 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3063 {
3064
3065 param_field[0] = _ascebc['P'];
3066 param_field[1] = _ascebc['C'];
3067 param_field[2] = _ascebc['I'];
3068 param_field[3] = _ascebc['T'];
3069 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3070 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3071 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3072 }
3073
3074 static void
3075 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3076 {
3077 param_field[16] = _ascebc['B'];
3078 param_field[17] = _ascebc['L'];
3079 param_field[18] = _ascebc['K'];
3080 param_field[19] = _ascebc['T'];
3081 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3082 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3083 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3084 }
3085
3086 static void
3087 qeth_initialize_working_pool_list(struct qeth_card *card)
3088 {
3089 struct qeth_buffer_pool_entry *entry;
3090
3091 QETH_DBF_TEXT(trace,5,"inwrklst");
3092
3093 list_for_each_entry(entry,
3094 &card->qdio.init_pool.entry_list, init_list) {
3095 qeth_put_buffer_pool_entry(card,entry);
3096 }
3097 }
3098
3099 static void
3100 qeth_clear_working_pool_list(struct qeth_card *card)
3101 {
3102 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3103
3104 QETH_DBF_TEXT(trace,5,"clwrklst");
3105 list_for_each_entry_safe(pool_entry, tmp,
3106 &card->qdio.in_buf_pool.entry_list, list){
3107 list_del(&pool_entry->list);
3108 }
3109 }
3110
3111 static void
3112 qeth_free_buffer_pool(struct qeth_card *card)
3113 {
3114 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3115 int i=0;
3116 QETH_DBF_TEXT(trace,5,"freepool");
3117 list_for_each_entry_safe(pool_entry, tmp,
3118 &card->qdio.init_pool.entry_list, init_list){
3119 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3120 free_page((unsigned long)pool_entry->elements[i]);
3121 list_del(&pool_entry->init_list);
3122 kfree(pool_entry);
3123 }
3124 }
3125
3126 static int
3127 qeth_alloc_buffer_pool(struct qeth_card *card)
3128 {
3129 struct qeth_buffer_pool_entry *pool_entry;
3130 void *ptr;
3131 int i, j;
3132
3133 QETH_DBF_TEXT(trace,5,"alocpool");
3134 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3135 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3136 if (!pool_entry){
3137 qeth_free_buffer_pool(card);
3138 return -ENOMEM;
3139 }
3140 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3141 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3142 if (!ptr) {
3143 while (j > 0)
3144 free_page((unsigned long)
3145 pool_entry->elements[--j]);
3146 kfree(pool_entry);
3147 qeth_free_buffer_pool(card);
3148 return -ENOMEM;
3149 }
3150 pool_entry->elements[j] = ptr;
3151 }
3152 list_add(&pool_entry->init_list,
3153 &card->qdio.init_pool.entry_list);
3154 }
3155 return 0;
3156 }
3157
3158 int
3159 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3160 {
3161 QETH_DBF_TEXT(trace, 2, "realcbp");
3162
3163 if ((card->state != CARD_STATE_DOWN) &&
3164 (card->state != CARD_STATE_RECOVER))
3165 return -EPERM;
3166
3167 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3168 qeth_clear_working_pool_list(card);
3169 qeth_free_buffer_pool(card);
3170 card->qdio.in_buf_pool.buf_count = bufcnt;
3171 card->qdio.init_pool.buf_count = bufcnt;
3172 return qeth_alloc_buffer_pool(card);
3173 }
3174
3175 static int
3176 qeth_alloc_qdio_buffers(struct qeth_card *card)
3177 {
3178 int i, j;
3179
3180 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3181
3182 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3183 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3184 return 0;
3185
3186 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3187 GFP_KERNEL|GFP_DMA);
3188 if (!card->qdio.in_q)
3189 goto out_nomem;
3190 QETH_DBF_TEXT(setup, 2, "inq");
3191 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3192 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3193 /* give inbound qeth_qdio_buffers their qdio_buffers */
3194 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3195 card->qdio.in_q->bufs[i].buffer =
3196 &card->qdio.in_q->qdio_bufs[i];
3197 /* inbound buffer pool */
3198 if (qeth_alloc_buffer_pool(card))
3199 goto out_freeinq;
3200 /* outbound */
3201 card->qdio.out_qs =
3202 kmalloc(card->qdio.no_out_queues *
3203 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3204 if (!card->qdio.out_qs)
3205 goto out_freepool;
3206 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3207 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3208 GFP_KERNEL|GFP_DMA);
3209 if (!card->qdio.out_qs[i])
3210 goto out_freeoutq;
3211 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3212 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3213 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3214 card->qdio.out_qs[i]->queue_no = i;
3215 /* give outbound qeth_qdio_buffers their qdio_buffers */
3216 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3217 card->qdio.out_qs[i]->bufs[j].buffer =
3218 &card->qdio.out_qs[i]->qdio_bufs[j];
3219 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3220 skb_list);
3221 lockdep_set_class(
3222 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3223 &qdio_out_skb_queue_key);
3224 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3225 }
3226 }
3227 return 0;
3228
3229 out_freeoutq:
3230 while (i > 0)
3231 kfree(card->qdio.out_qs[--i]);
3232 kfree(card->qdio.out_qs);
3233 out_freepool:
3234 qeth_free_buffer_pool(card);
3235 out_freeinq:
3236 kfree(card->qdio.in_q);
3237 out_nomem:
3238 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3239 return -ENOMEM;
3240 }
3241
3242 static void
3243 qeth_free_qdio_buffers(struct qeth_card *card)
3244 {
3245 int i, j;
3246
3247 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3248 if (atomic_swap(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3249 QETH_QDIO_UNINITIALIZED)
3250 return;
3251 kfree(card->qdio.in_q);
3252 /* inbound buffer pool */
3253 qeth_free_buffer_pool(card);
3254 /* free outbound qdio_qs */
3255 for (i = 0; i < card->qdio.no_out_queues; ++i){
3256 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3257 qeth_clear_output_buffer(card->qdio.out_qs[i],
3258 &card->qdio.out_qs[i]->bufs[j]);
3259 kfree(card->qdio.out_qs[i]);
3260 }
3261 kfree(card->qdio.out_qs);
3262 }
3263
3264 static void
3265 qeth_clear_qdio_buffers(struct qeth_card *card)
3266 {
3267 int i, j;
3268
3269 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3270 /* clear outbound buffers to free skbs */
3271 for (i = 0; i < card->qdio.no_out_queues; ++i)
3272 if (card->qdio.out_qs[i]){
3273 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3274 qeth_clear_output_buffer(card->qdio.out_qs[i],
3275 &card->qdio.out_qs[i]->bufs[j]);
3276 }
3277 }
3278
3279 static void
3280 qeth_init_qdio_info(struct qeth_card *card)
3281 {
3282 QETH_DBF_TEXT(setup, 4, "intqdinf");
3283 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3284 /* inbound */
3285 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3286 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3287 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3288 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3289 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3290 }
3291
3292 static int
3293 qeth_init_qdio_queues(struct qeth_card *card)
3294 {
3295 int i, j;
3296 int rc;
3297
3298 QETH_DBF_TEXT(setup, 2, "initqdqs");
3299
3300 /* inbound queue */
3301 memset(card->qdio.in_q->qdio_bufs, 0,
3302 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3303 qeth_initialize_working_pool_list(card);
3304 /*give only as many buffers to hardware as we have buffer pool entries*/
3305 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3306 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3307 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3308 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3309 card->qdio.in_buf_pool.buf_count - 1, NULL);
3310 if (rc) {
3311 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3312 return rc;
3313 }
3314 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3315 if (rc) {
3316 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3317 return rc;
3318 }
3319 /* outbound queue */
3320 for (i = 0; i < card->qdio.no_out_queues; ++i){
3321 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3322 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3323 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3324 qeth_clear_output_buffer(card->qdio.out_qs[i],
3325 &card->qdio.out_qs[i]->bufs[j]);
3326 }
3327 card->qdio.out_qs[i]->card = card;
3328 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3329 card->qdio.out_qs[i]->do_pack = 0;
3330 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3331 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3332 atomic_set(&card->qdio.out_qs[i]->state,
3333 QETH_OUT_Q_UNLOCKED);
3334 }
3335 return 0;
3336 }
3337
3338 static int
3339 qeth_qdio_establish(struct qeth_card *card)
3340 {
3341 struct qdio_initialize init_data;
3342 char *qib_param_field;
3343 struct qdio_buffer **in_sbal_ptrs;
3344 struct qdio_buffer **out_sbal_ptrs;
3345 int i, j, k;
3346 int rc = 0;
3347
3348 QETH_DBF_TEXT(setup, 2, "qdioest");
3349
3350 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3351 GFP_KERNEL);
3352 if (!qib_param_field)
3353 return -ENOMEM;
3354
3355 qeth_create_qib_param_field(card, qib_param_field);
3356 qeth_create_qib_param_field_blkt(card, qib_param_field);
3357
3358 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3359 GFP_KERNEL);
3360 if (!in_sbal_ptrs) {
3361 kfree(qib_param_field);
3362 return -ENOMEM;
3363 }
3364 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3365 in_sbal_ptrs[i] = (struct qdio_buffer *)
3366 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3367
3368 out_sbal_ptrs =
3369 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3370 sizeof(void *), GFP_KERNEL);
3371 if (!out_sbal_ptrs) {
3372 kfree(in_sbal_ptrs);
3373 kfree(qib_param_field);
3374 return -ENOMEM;
3375 }
3376 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3377 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3378 out_sbal_ptrs[k] = (struct qdio_buffer *)
3379 virt_to_phys(card->qdio.out_qs[i]->
3380 bufs[j].buffer);
3381 }
3382
3383 memset(&init_data, 0, sizeof(struct qdio_initialize));
3384 init_data.cdev = CARD_DDEV(card);
3385 init_data.q_format = qeth_get_qdio_q_format(card);
3386 init_data.qib_param_field_format = 0;
3387 init_data.qib_param_field = qib_param_field;
3388 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3389 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3390 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3391 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3392 init_data.no_input_qs = 1;
3393 init_data.no_output_qs = card->qdio.no_out_queues;
3394 init_data.input_handler = (qdio_handler_t *)
3395 qeth_qdio_input_handler;
3396 init_data.output_handler = (qdio_handler_t *)
3397 qeth_qdio_output_handler;
3398 init_data.int_parm = (unsigned long) card;
3399 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3400 QDIO_OUTBOUND_0COPY_SBALS |
3401 QDIO_USE_OUTBOUND_PCIS;
3402 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3403 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3404
3405 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3406 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3407 if ((rc = qdio_initialize(&init_data)))
3408 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3409
3410 kfree(out_sbal_ptrs);
3411 kfree(in_sbal_ptrs);
3412 kfree(qib_param_field);
3413 return rc;
3414 }
3415
3416 static int
3417 qeth_qdio_activate(struct qeth_card *card)
3418 {
3419 QETH_DBF_TEXT(setup,3,"qdioact");
3420 return qdio_activate(CARD_DDEV(card), 0);
3421 }
3422
3423 static int
3424 qeth_clear_channel(struct qeth_channel *channel)
3425 {
3426 unsigned long flags;
3427 struct qeth_card *card;
3428 int rc;
3429
3430 QETH_DBF_TEXT(trace,3,"clearch");
3431 card = CARD_FROM_CDEV(channel->ccwdev);
3432 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3433 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3434 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3435
3436 if (rc)
3437 return rc;
3438 rc = wait_event_interruptible_timeout(card->wait_q,
3439 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3440 if (rc == -ERESTARTSYS)
3441 return rc;
3442 if (channel->state != CH_STATE_STOPPED)
3443 return -ETIME;
3444 channel->state = CH_STATE_DOWN;
3445 return 0;
3446 }
3447
3448 static int
3449 qeth_halt_channel(struct qeth_channel *channel)
3450 {
3451 unsigned long flags;
3452 struct qeth_card *card;
3453 int rc;
3454
3455 QETH_DBF_TEXT(trace,3,"haltch");
3456 card = CARD_FROM_CDEV(channel->ccwdev);
3457 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3458 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3459 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3460
3461 if (rc)
3462 return rc;
3463 rc = wait_event_interruptible_timeout(card->wait_q,
3464 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3465 if (rc == -ERESTARTSYS)
3466 return rc;
3467 if (channel->state != CH_STATE_HALTED)
3468 return -ETIME;
3469 return 0;
3470 }
3471
3472 static int
3473 qeth_halt_channels(struct qeth_card *card)
3474 {
3475 int rc1 = 0, rc2=0, rc3 = 0;
3476
3477 QETH_DBF_TEXT(trace,3,"haltchs");
3478 rc1 = qeth_halt_channel(&card->read);
3479 rc2 = qeth_halt_channel(&card->write);
3480 rc3 = qeth_halt_channel(&card->data);
3481 if (rc1)
3482 return rc1;
3483 if (rc2)
3484 return rc2;
3485 return rc3;
3486 }
3487 static int
3488 qeth_clear_channels(struct qeth_card *card)
3489 {
3490 int rc1 = 0, rc2=0, rc3 = 0;
3491
3492 QETH_DBF_TEXT(trace,3,"clearchs");
3493 rc1 = qeth_clear_channel(&card->read);
3494 rc2 = qeth_clear_channel(&card->write);
3495 rc3 = qeth_clear_channel(&card->data);
3496 if (rc1)
3497 return rc1;
3498 if (rc2)
3499 return rc2;
3500 return rc3;
3501 }
3502
3503 static int
3504 qeth_clear_halt_card(struct qeth_card *card, int halt)
3505 {
3506 int rc = 0;
3507
3508 QETH_DBF_TEXT(trace,3,"clhacrd");
3509 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3510
3511 if (halt)
3512 rc = qeth_halt_channels(card);
3513 if (rc)
3514 return rc;
3515 return qeth_clear_channels(card);
3516 }
3517
3518 static int
3519 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3520 {
3521 int rc = 0;
3522
3523 QETH_DBF_TEXT(trace,3,"qdioclr");
3524 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3525 QETH_QDIO_CLEANING)) {
3526 case QETH_QDIO_ESTABLISHED:
3527 if ((rc = qdio_cleanup(CARD_DDEV(card),
3528 (card->info.type == QETH_CARD_TYPE_IQD) ?
3529 QDIO_FLAG_CLEANUP_USING_HALT :
3530 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3531 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3532 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3533 break;
3534 case QETH_QDIO_CLEANING:
3535 return rc;
3536 default:
3537 break;
3538 }
3539 if ((rc = qeth_clear_halt_card(card, use_halt)))
3540 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3541 card->state = CARD_STATE_DOWN;
3542 return rc;
3543 }
3544
3545 static int
3546 qeth_dm_act(struct qeth_card *card)
3547 {
3548 int rc;
3549 struct qeth_cmd_buffer *iob;
3550
3551 QETH_DBF_TEXT(setup,2,"dmact");
3552
3553 iob = qeth_wait_for_buffer(&card->write);
3554 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3555
3556 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3557 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3558 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3559 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3560 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3561 return rc;
3562 }
3563
3564 static int
3565 qeth_mpc_initialize(struct qeth_card *card)
3566 {
3567 int rc;
3568
3569 QETH_DBF_TEXT(setup,2,"mpcinit");
3570
3571 if ((rc = qeth_issue_next_read(card))){
3572 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3573 return rc;
3574 }
3575 if ((rc = qeth_cm_enable(card))){
3576 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3577 goto out_qdio;
3578 }
3579 if ((rc = qeth_cm_setup(card))){
3580 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3581 goto out_qdio;
3582 }
3583 if ((rc = qeth_ulp_enable(card))){
3584 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3585 goto out_qdio;
3586 }
3587 if ((rc = qeth_ulp_setup(card))){
3588 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3589 goto out_qdio;
3590 }
3591 if ((rc = qeth_alloc_qdio_buffers(card))){
3592 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3593 goto out_qdio;
3594 }
3595 if ((rc = qeth_qdio_establish(card))){
3596 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3597 qeth_free_qdio_buffers(card);
3598 goto out_qdio;
3599 }
3600 if ((rc = qeth_qdio_activate(card))){
3601 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3602 goto out_qdio;
3603 }
3604 if ((rc = qeth_dm_act(card))){
3605 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3606 goto out_qdio;
3607 }
3608
3609 return 0;
3610 out_qdio:
3611 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3612 return rc;
3613 }
3614
3615 static struct net_device *
3616 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3617 {
3618 struct net_device *dev = NULL;
3619
3620 switch (type) {
3621 case QETH_CARD_TYPE_OSAE:
3622 switch (linktype) {
3623 case QETH_LINK_TYPE_LANE_TR:
3624 case QETH_LINK_TYPE_HSTR:
3625 #ifdef CONFIG_TR
3626 dev = alloc_trdev(0);
3627 #endif /* CONFIG_TR */
3628 break;
3629 default:
3630 dev = alloc_etherdev(0);
3631 }
3632 break;
3633 case QETH_CARD_TYPE_IQD:
3634 dev = alloc_netdev(0, "hsi%d", ether_setup);
3635 break;
3636 case QETH_CARD_TYPE_OSN:
3637 dev = alloc_netdev(0, "osn%d", ether_setup);
3638 break;
3639 default:
3640 dev = alloc_etherdev(0);
3641 }
3642 return dev;
3643 }
3644
3645 /*hard_header fake function; used in case fake_ll is set */
3646 static int
3647 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3648 unsigned short type, void *daddr, void *saddr,
3649 unsigned len)
3650 {
3651 if(dev->type == ARPHRD_IEEE802_TR){
3652 struct trh_hdr *hdr;
3653 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3654 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3655 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3656 return QETH_FAKE_LL_LEN_TR;
3657
3658 } else {
3659 struct ethhdr *hdr;
3660 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3661 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3662 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3663 if (type != ETH_P_802_3)
3664 hdr->h_proto = htons(type);
3665 else
3666 hdr->h_proto = htons(len);
3667 return QETH_FAKE_LL_LEN_ETH;
3668
3669 }
3670 }
3671
3672 static inline int
3673 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3674
3675 static int
3676 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3677 {
3678 int rc;
3679 struct qeth_card *card;
3680
3681 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3682 card = (struct qeth_card *)dev->priv;
3683 if (skb==NULL) {
3684 card->stats.tx_dropped++;
3685 card->stats.tx_errors++;
3686 /* return OK; otherwise ksoftirqd goes to 100% */
3687 return NETDEV_TX_OK;
3688 }
3689 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3690 card->stats.tx_dropped++;
3691 card->stats.tx_errors++;
3692 card->stats.tx_carrier_errors++;
3693 dev_kfree_skb_any(skb);
3694 /* return OK; otherwise ksoftirqd goes to 100% */
3695 return NETDEV_TX_OK;
3696 }
3697 if (card->options.performance_stats) {
3698 card->perf_stats.outbound_cnt++;
3699 card->perf_stats.outbound_start_time = qeth_get_micros();
3700 }
3701 netif_stop_queue(dev);
3702 if ((rc = qeth_send_packet(card, skb))) {
3703 if (rc == -EBUSY) {
3704 return NETDEV_TX_BUSY;
3705 } else {
3706 card->stats.tx_errors++;
3707 card->stats.tx_dropped++;
3708 dev_kfree_skb_any(skb);
3709 /*set to OK; otherwise ksoftirqd goes to 100% */
3710 rc = NETDEV_TX_OK;
3711 }
3712 }
3713 netif_wake_queue(dev);
3714 if (card->options.performance_stats)
3715 card->perf_stats.outbound_time += qeth_get_micros() -
3716 card->perf_stats.outbound_start_time;
3717 return rc;
3718 }
3719
3720 static int
3721 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3722 {
3723 int rc = 0;
3724 #ifdef CONFIG_QETH_VLAN
3725 struct vlan_group *vg;
3726 int i;
3727
3728 if (!(vg = card->vlangrp))
3729 return rc;
3730
3731 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3732 if (vg->vlan_devices[i] == dev){
3733 rc = QETH_VLAN_CARD;
3734 break;
3735 }
3736 }
3737 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3738 return 0;
3739
3740 #endif
3741 return rc;
3742 }
3743
3744 static int
3745 qeth_verify_dev(struct net_device *dev)
3746 {
3747 struct qeth_card *card;
3748 unsigned long flags;
3749 int rc = 0;
3750
3751 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3752 list_for_each_entry(card, &qeth_card_list.list, list){
3753 if (card->dev == dev){
3754 rc = QETH_REAL_CARD;
3755 break;
3756 }
3757 rc = qeth_verify_vlan_dev(dev, card);
3758 if (rc)
3759 break;
3760 }
3761 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3762
3763 return rc;
3764 }
3765
3766 static struct qeth_card *
3767 qeth_get_card_from_dev(struct net_device *dev)
3768 {
3769 struct qeth_card *card = NULL;
3770 int rc;
3771
3772 rc = qeth_verify_dev(dev);
3773 if (rc == QETH_REAL_CARD)
3774 card = (struct qeth_card *)dev->priv;
3775 else if (rc == QETH_VLAN_CARD)
3776 card = (struct qeth_card *)
3777 VLAN_DEV_INFO(dev)->real_dev->priv;
3778
3779 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3780 return card ;
3781 }
3782
3783 static void
3784 qeth_tx_timeout(struct net_device *dev)
3785 {
3786 struct qeth_card *card;
3787
3788 card = (struct qeth_card *) dev->priv;
3789 card->stats.tx_errors++;
3790 qeth_schedule_recovery(card);
3791 }
3792
3793 static int
3794 qeth_open(struct net_device *dev)
3795 {
3796 struct qeth_card *card;
3797
3798 QETH_DBF_TEXT(trace, 4, "qethopen");
3799
3800 card = (struct qeth_card *) dev->priv;
3801
3802 if (card->state != CARD_STATE_SOFTSETUP)
3803 return -ENODEV;
3804
3805 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3806 (card->options.layer2) &&
3807 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3808 QETH_DBF_TEXT(trace,4,"nomacadr");
3809 return -EPERM;
3810 }
3811 card->data.state = CH_STATE_UP;
3812 card->state = CARD_STATE_UP;
3813 card->dev->flags |= IFF_UP;
3814 netif_start_queue(dev);
3815
3816 if (!card->lan_online && netif_carrier_ok(dev))
3817 netif_carrier_off(dev);
3818 return 0;
3819 }
3820
3821 static int
3822 qeth_stop(struct net_device *dev)
3823 {
3824 struct qeth_card *card;
3825
3826 QETH_DBF_TEXT(trace, 4, "qethstop");
3827
3828 card = (struct qeth_card *) dev->priv;
3829
3830 netif_tx_disable(dev);
3831 card->dev->flags &= ~IFF_UP;
3832 if (card->state == CARD_STATE_UP)
3833 card->state = CARD_STATE_SOFTSETUP;
3834 return 0;
3835 }
3836
3837 static inline int
3838 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3839 {
3840 int cast_type = RTN_UNSPEC;
3841
3842 if (card->info.type == QETH_CARD_TYPE_OSN)
3843 return cast_type;
3844
3845 if (skb->dst && skb->dst->neighbour){
3846 cast_type = skb->dst->neighbour->type;
3847 if ((cast_type == RTN_BROADCAST) ||
3848 (cast_type == RTN_MULTICAST) ||
3849 (cast_type == RTN_ANYCAST))
3850 return cast_type;
3851 else
3852 return RTN_UNSPEC;
3853 }
3854 /* try something else */
3855 if (skb->protocol == ETH_P_IPV6)
3856 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3857 else if (skb->protocol == ETH_P_IP)
3858 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3859 /* ... */
3860 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3861 return RTN_BROADCAST;
3862 else {
3863 u16 hdr_mac;
3864
3865 hdr_mac = *((u16 *)skb->data);
3866 /* tr multicast? */
3867 switch (card->info.link_type) {
3868 case QETH_LINK_TYPE_HSTR:
3869 case QETH_LINK_TYPE_LANE_TR:
3870 if ((hdr_mac == QETH_TR_MAC_NC) ||
3871 (hdr_mac == QETH_TR_MAC_C))
3872 return RTN_MULTICAST;
3873 break;
3874 /* eth or so multicast? */
3875 default:
3876 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3877 (hdr_mac == QETH_ETH_MAC_V6))
3878 return RTN_MULTICAST;
3879 }
3880 }
3881 return cast_type;
3882 }
3883
3884 static inline int
3885 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3886 int ipv, int cast_type)
3887 {
3888 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3889 return card->qdio.default_out_queue;
3890 switch (card->qdio.no_out_queues) {
3891 case 4:
3892 if (cast_type && card->info.is_multicast_different)
3893 return card->info.is_multicast_different &
3894 (card->qdio.no_out_queues - 1);
3895 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3896 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3897 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3898 return 3;
3899 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3900 return 2;
3901 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3902 return 1;
3903 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3904 return 0;
3905 }
3906 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3907 return 3 - (skb->nh.iph->tos >> 6);
3908 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3909 /* TODO: IPv6!!! */
3910 }
3911 return card->qdio.default_out_queue;
3912 case 1: /* fallthrough for single-out-queue 1920-device */
3913 default:
3914 return card->qdio.default_out_queue;
3915 }
3916 }
3917
3918 static inline int
3919 qeth_get_ip_version(struct sk_buff *skb)
3920 {
3921 switch (skb->protocol) {
3922 case ETH_P_IPV6:
3923 return 6;
3924 case ETH_P_IP:
3925 return 4;
3926 default:
3927 return 0;
3928 }
3929 }
3930
3931 static inline struct qeth_hdr *
3932 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
3933 {
3934 #ifdef CONFIG_QETH_VLAN
3935 u16 *tag;
3936 if (card->vlangrp && vlan_tx_tag_present(skb) &&
3937 ((ipv == 6) || card->options.layer2) ) {
3938 /*
3939 * Move the mac addresses (6 bytes src, 6 bytes dest)
3940 * to the beginning of the new header. We are using three
3941 * memcpys instead of one memmove to save cycles.
3942 */
3943 skb_push(skb, VLAN_HLEN);
3944 memcpy(skb->data, skb->data + 4, 4);
3945 memcpy(skb->data + 4, skb->data + 8, 4);
3946 memcpy(skb->data + 8, skb->data + 12, 4);
3947 tag = (u16 *)(skb->data + 12);
3948 /*
3949 * first two bytes = ETH_P_8021Q (0x8100)
3950 * second two bytes = VLANID
3951 */
3952 *tag = __constant_htons(ETH_P_8021Q);
3953 *(tag + 1) = htons(vlan_tx_tag_get(skb));
3954 }
3955 #endif
3956 return ((struct qeth_hdr *)
3957 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3958 }
3959
3960 static inline void
3961 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3962 {
3963 if (orig_skb != new_skb)
3964 dev_kfree_skb_any(new_skb);
3965 }
3966
3967 static inline struct sk_buff *
3968 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3969 struct qeth_hdr **hdr, int ipv)
3970 {
3971 struct sk_buff *new_skb;
3972
3973 QETH_DBF_TEXT(trace, 6, "prepskb");
3974
3975 new_skb = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3976 if (new_skb == NULL)
3977 return NULL;
3978 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3979 if (*hdr == NULL) {
3980 __qeth_free_new_skb(skb, new_skb);
3981 return NULL;
3982 }
3983 return new_skb;
3984 }
3985
3986 static inline u8
3987 qeth_get_qeth_hdr_flags4(int cast_type)
3988 {
3989 if (cast_type == RTN_MULTICAST)
3990 return QETH_CAST_MULTICAST;
3991 if (cast_type == RTN_BROADCAST)
3992 return QETH_CAST_BROADCAST;
3993 return QETH_CAST_UNICAST;
3994 }
3995
3996 static inline u8
3997 qeth_get_qeth_hdr_flags6(int cast_type)
3998 {
3999 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
4000 if (cast_type == RTN_MULTICAST)
4001 return ct | QETH_CAST_MULTICAST;
4002 if (cast_type == RTN_ANYCAST)
4003 return ct | QETH_CAST_ANYCAST;
4004 if (cast_type == RTN_BROADCAST)
4005 return ct | QETH_CAST_BROADCAST;
4006 return ct | QETH_CAST_UNICAST;
4007 }
4008
4009 static inline void
4010 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4011 struct sk_buff *skb)
4012 {
4013 __u16 hdr_mac;
4014
4015 if (!memcmp(skb->data+QETH_HEADER_SIZE,
4016 skb->dev->broadcast,6)) { /* broadcast? */
4017 *(__u32 *)hdr->hdr.l2.flags |=
4018 QETH_LAYER2_FLAG_BROADCAST << 8;
4019 return;
4020 }
4021 hdr_mac=*((__u16*)skb->data);
4022 /* tr multicast? */
4023 switch (card->info.link_type) {
4024 case QETH_LINK_TYPE_HSTR:
4025 case QETH_LINK_TYPE_LANE_TR:
4026 if ((hdr_mac == QETH_TR_MAC_NC) ||
4027 (hdr_mac == QETH_TR_MAC_C) )
4028 *(__u32 *)hdr->hdr.l2.flags |=
4029 QETH_LAYER2_FLAG_MULTICAST << 8;
4030 else
4031 *(__u32 *)hdr->hdr.l2.flags |=
4032 QETH_LAYER2_FLAG_UNICAST << 8;
4033 break;
4034 /* eth or so multicast? */
4035 default:
4036 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4037 (hdr_mac==QETH_ETH_MAC_V6) )
4038 *(__u32 *)hdr->hdr.l2.flags |=
4039 QETH_LAYER2_FLAG_MULTICAST << 8;
4040 else
4041 *(__u32 *)hdr->hdr.l2.flags |=
4042 QETH_LAYER2_FLAG_UNICAST << 8;
4043 }
4044 }
4045
4046 static inline void
4047 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4048 struct sk_buff *skb, int cast_type)
4049 {
4050 memset(hdr, 0, sizeof(struct qeth_hdr));
4051 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4052
4053 /* set byte 0 to "0x02" and byte 3 to casting flags */
4054 if (cast_type==RTN_MULTICAST)
4055 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4056 else if (cast_type==RTN_BROADCAST)
4057 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4058 else
4059 qeth_layer2_get_packet_type(card, hdr, skb);
4060
4061 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4062 #ifdef CONFIG_QETH_VLAN
4063 /* VSWITCH relies on the VLAN
4064 * information to be present in
4065 * the QDIO header */
4066 if ((card->vlangrp != NULL) &&
4067 vlan_tx_tag_present(skb)) {
4068 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4069 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4070 }
4071 #endif
4072 }
4073
4074 void
4075 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4076 struct sk_buff *skb, int ipv, int cast_type)
4077 {
4078 QETH_DBF_TEXT(trace, 6, "fillhdr");
4079
4080 memset(hdr, 0, sizeof(struct qeth_hdr));
4081 if (card->options.layer2) {
4082 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4083 return;
4084 }
4085 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4086 hdr->hdr.l3.ext_flags = 0;
4087 #ifdef CONFIG_QETH_VLAN
4088 /*
4089 * before we're going to overwrite this location with next hop ip.
4090 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4091 */
4092 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4093 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4094 QETH_HDR_EXT_VLAN_FRAME :
4095 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4096 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4097 }
4098 #endif /* CONFIG_QETH_VLAN */
4099 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4100 if (ipv == 4) { /* IPv4 */
4101 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4102 memset(hdr->hdr.l3.dest_addr, 0, 12);
4103 if ((skb->dst) && (skb->dst->neighbour)) {
4104 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4105 *((u32 *) skb->dst->neighbour->primary_key);
4106 } else {
4107 /* fill in destination address used in ip header */
4108 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4109 }
4110 } else if (ipv == 6) { /* IPv6 or passthru */
4111 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4112 if ((skb->dst) && (skb->dst->neighbour)) {
4113 memcpy(hdr->hdr.l3.dest_addr,
4114 skb->dst->neighbour->primary_key, 16);
4115 } else {
4116 /* fill in destination address used in ip header */
4117 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4118 }
4119 } else { /* passthrough */
4120 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4121 !memcmp(skb->data + sizeof(struct qeth_hdr) +
4122 sizeof(__u16), skb->dev->broadcast, 6)) {
4123 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4124 QETH_HDR_PASSTHRU;
4125 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4126 skb->dev->broadcast, 6)) { /* broadcast? */
4127 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4128 QETH_HDR_PASSTHRU;
4129 } else {
4130 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4131 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4132 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4133 }
4134 }
4135 }
4136
4137 static inline void
4138 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4139 int is_tso, int *next_element_to_fill)
4140 {
4141 int length = skb->len;
4142 int length_here;
4143 int element;
4144 char *data;
4145 int first_lap ;
4146
4147 element = *next_element_to_fill;
4148 data = skb->data;
4149 first_lap = (is_tso == 0 ? 1 : 0);
4150
4151 while (length > 0) {
4152 /* length_here is the remaining amount of data in this page */
4153 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4154 if (length < length_here)
4155 length_here = length;
4156
4157 buffer->element[element].addr = data;
4158 buffer->element[element].length = length_here;
4159 length -= length_here;
4160 if (!length) {
4161 if (first_lap)
4162 buffer->element[element].flags = 0;
4163 else
4164 buffer->element[element].flags =
4165 SBAL_FLAGS_LAST_FRAG;
4166 } else {
4167 if (first_lap)
4168 buffer->element[element].flags =
4169 SBAL_FLAGS_FIRST_FRAG;
4170 else
4171 buffer->element[element].flags =
4172 SBAL_FLAGS_MIDDLE_FRAG;
4173 }
4174 data += length_here;
4175 element++;
4176 first_lap = 0;
4177 }
4178 *next_element_to_fill = element;
4179 }
4180
4181 static inline int
4182 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4183 struct qeth_qdio_out_buffer *buf,
4184 struct sk_buff *skb)
4185 {
4186 struct qdio_buffer *buffer;
4187 struct qeth_hdr_tso *hdr;
4188 int flush_cnt = 0, hdr_len, large_send = 0;
4189
4190 QETH_DBF_TEXT(trace, 6, "qdfillbf");
4191
4192 buffer = buf->buffer;
4193 atomic_inc(&skb->users);
4194 skb_queue_tail(&buf->skb_list, skb);
4195
4196 hdr = (struct qeth_hdr_tso *) skb->data;
4197 /*check first on TSO ....*/
4198 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4199 int element = buf->next_element_to_fill;
4200
4201 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4202 /*fill first buffer entry only with header information */
4203 buffer->element[element].addr = skb->data;
4204 buffer->element[element].length = hdr_len;
4205 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4206 buf->next_element_to_fill++;
4207 skb->data += hdr_len;
4208 skb->len -= hdr_len;
4209 large_send = 1;
4210 }
4211 if (skb_shinfo(skb)->nr_frags == 0)
4212 __qeth_fill_buffer(skb, buffer, large_send,
4213 (int *)&buf->next_element_to_fill);
4214 else
4215 __qeth_fill_buffer_frag(skb, buffer, large_send,
4216 (int *)&buf->next_element_to_fill);
4217
4218 if (!queue->do_pack) {
4219 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4220 /* set state to PRIMED -> will be flushed */
4221 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4222 flush_cnt = 1;
4223 } else {
4224 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4225 if (queue->card->options.performance_stats)
4226 queue->card->perf_stats.skbs_sent_pack++;
4227 if (buf->next_element_to_fill >=
4228 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4229 /*
4230 * packed buffer if full -> set state PRIMED
4231 * -> will be flushed
4232 */
4233 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4234 flush_cnt = 1;
4235 }
4236 }
4237 return flush_cnt;
4238 }
4239
4240 static inline int
4241 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4242 struct sk_buff *skb, struct qeth_hdr *hdr,
4243 int elements_needed,
4244 struct qeth_eddp_context *ctx)
4245 {
4246 struct qeth_qdio_out_buffer *buffer;
4247 int buffers_needed = 0;
4248 int flush_cnt = 0;
4249 int index;
4250
4251 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4252
4253 /* spin until we get the queue ... */
4254 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4255 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4256 /* ... now we've got the queue */
4257 index = queue->next_buf_to_fill;
4258 buffer = &queue->bufs[queue->next_buf_to_fill];
4259 /*
4260 * check if buffer is empty to make sure that we do not 'overtake'
4261 * ourselves and try to fill a buffer that is already primed
4262 */
4263 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4264 goto out;
4265 if (ctx == NULL)
4266 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4267 QDIO_MAX_BUFFERS_PER_Q;
4268 else {
4269 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4270 if (buffers_needed < 0)
4271 goto out;
4272 queue->next_buf_to_fill =
4273 (queue->next_buf_to_fill + buffers_needed) %
4274 QDIO_MAX_BUFFERS_PER_Q;
4275 }
4276 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4277 if (ctx == NULL) {
4278 qeth_fill_buffer(queue, buffer, skb);
4279 qeth_flush_buffers(queue, 0, index, 1);
4280 } else {
4281 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4282 WARN_ON(buffers_needed != flush_cnt);
4283 qeth_flush_buffers(queue, 0, index, flush_cnt);
4284 }
4285 return 0;
4286 out:
4287 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4288 return -EBUSY;
4289 }
4290
4291 static inline int
4292 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4293 struct sk_buff *skb, struct qeth_hdr *hdr,
4294 int elements_needed, struct qeth_eddp_context *ctx)
4295 {
4296 struct qeth_qdio_out_buffer *buffer;
4297 int start_index;
4298 int flush_count = 0;
4299 int do_pack = 0;
4300 int tmp;
4301 int rc = 0;
4302
4303 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4304
4305 /* spin until we get the queue ... */
4306 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4307 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4308 start_index = queue->next_buf_to_fill;
4309 buffer = &queue->bufs[queue->next_buf_to_fill];
4310 /*
4311 * check if buffer is empty to make sure that we do not 'overtake'
4312 * ourselves and try to fill a buffer that is already primed
4313 */
4314 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4315 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4316 return -EBUSY;
4317 }
4318 /* check if we need to switch packing state of this queue */
4319 qeth_switch_to_packing_if_needed(queue);
4320 if (queue->do_pack){
4321 do_pack = 1;
4322 if (ctx == NULL) {
4323 /* does packet fit in current buffer? */
4324 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4325 buffer->next_element_to_fill) < elements_needed){
4326 /* ... no -> set state PRIMED */
4327 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4328 flush_count++;
4329 queue->next_buf_to_fill =
4330 (queue->next_buf_to_fill + 1) %
4331 QDIO_MAX_BUFFERS_PER_Q;
4332 buffer = &queue->bufs[queue->next_buf_to_fill];
4333 /* we did a step forward, so check buffer state
4334 * again */
4335 if (atomic_read(&buffer->state) !=
4336 QETH_QDIO_BUF_EMPTY){
4337 qeth_flush_buffers(queue, 0, start_index, flush_count);
4338 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4339 return -EBUSY;
4340 }
4341 }
4342 } else {
4343 /* check if we have enough elements (including following
4344 * free buffers) to handle eddp context */
4345 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4346 printk("eddp tx_dropped 1\n");
4347 rc = -EBUSY;
4348 goto out;
4349 }
4350 }
4351 }
4352 if (ctx == NULL)
4353 tmp = qeth_fill_buffer(queue, buffer, skb);
4354 else {
4355 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4356 if (tmp < 0) {
4357 printk("eddp tx_dropped 2\n");
4358 rc = - EBUSY;
4359 goto out;
4360 }
4361 }
4362 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4363 QDIO_MAX_BUFFERS_PER_Q;
4364 flush_count += tmp;
4365 out:
4366 if (flush_count)
4367 qeth_flush_buffers(queue, 0, start_index, flush_count);
4368 else if (!atomic_read(&queue->set_pci_flags_count))
4369 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4370 /*
4371 * queue->state will go from LOCKED -> UNLOCKED or from
4372 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4373 * (switch packing state or flush buffer to get another pci flag out).
4374 * In that case we will enter this loop
4375 */
4376 while (atomic_dec_return(&queue->state)){
4377 flush_count = 0;
4378 start_index = queue->next_buf_to_fill;
4379 /* check if we can go back to non-packing state */
4380 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4381 /*
4382 * check if we need to flush a packing buffer to get a pci
4383 * flag out on the queue
4384 */
4385 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4386 flush_count += qeth_flush_buffers_on_no_pci(queue);
4387 if (flush_count)
4388 qeth_flush_buffers(queue, 0, start_index, flush_count);
4389 }
4390 /* at this point the queue is UNLOCKED again */
4391 if (queue->card->options.performance_stats && do_pack)
4392 queue->card->perf_stats.bufs_sent_pack += flush_count;
4393
4394 return rc;
4395 }
4396
4397 static inline int
4398 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4399 struct sk_buff *skb, int elems)
4400 {
4401 int elements_needed = 0;
4402
4403 if (skb_shinfo(skb)->nr_frags > 0)
4404 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4405 if (elements_needed == 0)
4406 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4407 + skb->len) >> PAGE_SHIFT);
4408 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4409 PRINT_ERR("Invalid size of IP packet "
4410 "(Number=%d / Length=%d). Discarded.\n",
4411 (elements_needed+elems), skb->len);
4412 return 0;
4413 }
4414 return elements_needed;
4415 }
4416
4417
4418 static inline int
4419 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4420 {
4421 int ipv = 0;
4422 int cast_type;
4423 struct qeth_qdio_out_q *queue;
4424 struct qeth_hdr *hdr = NULL;
4425 int elements_needed = 0;
4426 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4427 struct qeth_eddp_context *ctx = NULL;
4428 int tx_bytes = skb->len;
4429 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4430 unsigned short tso_size = skb_shinfo(skb)->gso_size;
4431 struct sk_buff *new_skb, *new_skb2;
4432 int rc;
4433
4434 QETH_DBF_TEXT(trace, 6, "sendpkt");
4435
4436 new_skb = skb;
4437 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4438 (skb->protocol == htons(ETH_P_IPV6)))
4439 return -EPERM;
4440 cast_type = qeth_get_cast_type(card, skb);
4441 if ((cast_type == RTN_BROADCAST) &&
4442 (card->info.broadcast_capable == 0))
4443 return -EPERM;
4444 queue = card->qdio.out_qs
4445 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4446 if (!card->options.layer2) {
4447 ipv = qeth_get_ip_version(skb);
4448 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4449 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4450 if (!new_skb)
4451 return -ENOMEM;
4452 if(card->dev->type == ARPHRD_IEEE802_TR){
4453 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4454 } else {
4455 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4456 }
4457 }
4458 }
4459 if (skb_is_gso(skb))
4460 large_send = card->options.large_send;
4461 /* check on OSN device*/
4462 if (card->info.type == QETH_CARD_TYPE_OSN)
4463 hdr = (struct qeth_hdr *)new_skb->data;
4464 /*are we able to do TSO ? */
4465 if ((large_send == QETH_LARGE_SEND_TSO) &&
4466 (cast_type == RTN_UNSPEC)) {
4467 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4468 if (rc) {
4469 __qeth_free_new_skb(skb, new_skb);
4470 return rc;
4471 }
4472 elements_needed++;
4473 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4474 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4475 if (!new_skb2) {
4476 __qeth_free_new_skb(skb, new_skb);
4477 return -EINVAL;
4478 }
4479 if (new_skb != skb)
4480 __qeth_free_new_skb(new_skb2, new_skb);
4481 new_skb = new_skb2;
4482 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4483 }
4484 if (large_send == QETH_LARGE_SEND_EDDP) {
4485 ctx = qeth_eddp_create_context(card, new_skb, hdr);
4486 if (ctx == NULL) {
4487 __qeth_free_new_skb(skb, new_skb);
4488 PRINT_WARN("could not create eddp context\n");
4489 return -EINVAL;
4490 }
4491 } else {
4492 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4493 elements_needed);
4494 if (!elems) {
4495 __qeth_free_new_skb(skb, new_skb);
4496 return -EINVAL;
4497 }
4498 elements_needed += elems;
4499 }
4500
4501 if (card->info.type != QETH_CARD_TYPE_IQD)
4502 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4503 elements_needed, ctx);
4504 else
4505 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4506 elements_needed, ctx);
4507 if (!rc) {
4508 card->stats.tx_packets++;
4509 card->stats.tx_bytes += tx_bytes;
4510 if (new_skb != skb)
4511 dev_kfree_skb_any(skb);
4512 if (card->options.performance_stats) {
4513 if (tso_size &&
4514 !(large_send == QETH_LARGE_SEND_NO)) {
4515 card->perf_stats.large_send_bytes += tx_bytes;
4516 card->perf_stats.large_send_cnt++;
4517 }
4518 if (nr_frags > 0) {
4519 card->perf_stats.sg_skbs_sent++;
4520 /* nr_frags + skb->data */
4521 card->perf_stats.sg_frags_sent +=
4522 nr_frags + 1;
4523 }
4524 }
4525 } else {
4526 card->stats.tx_dropped++;
4527 __qeth_free_new_skb(skb, new_skb);
4528 }
4529 if (ctx != NULL) {
4530 /* drop creator's reference */
4531 qeth_eddp_put_context(ctx);
4532 /* free skb; it's not referenced by a buffer */
4533 if (!rc)
4534 dev_kfree_skb_any(new_skb);
4535 }
4536 return rc;
4537 }
4538
4539 static int
4540 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4541 {
4542 struct qeth_card *card = (struct qeth_card *) dev->priv;
4543 int rc = 0;
4544
4545 switch(regnum){
4546 case MII_BMCR: /* Basic mode control register */
4547 rc = BMCR_FULLDPLX;
4548 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4549 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4550 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4551 rc |= BMCR_SPEED100;
4552 break;
4553 case MII_BMSR: /* Basic mode status register */
4554 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4555 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4556 BMSR_100BASE4;
4557 break;
4558 case MII_PHYSID1: /* PHYS ID 1 */
4559 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4560 dev->dev_addr[2];
4561 rc = (rc >> 5) & 0xFFFF;
4562 break;
4563 case MII_PHYSID2: /* PHYS ID 2 */
4564 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4565 break;
4566 case MII_ADVERTISE: /* Advertisement control reg */
4567 rc = ADVERTISE_ALL;
4568 break;
4569 case MII_LPA: /* Link partner ability reg */
4570 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4571 LPA_100BASE4 | LPA_LPACK;
4572 break;
4573 case MII_EXPANSION: /* Expansion register */
4574 break;
4575 case MII_DCOUNTER: /* disconnect counter */
4576 break;
4577 case MII_FCSCOUNTER: /* false carrier counter */
4578 break;
4579 case MII_NWAYTEST: /* N-way auto-neg test register */
4580 break;
4581 case MII_RERRCOUNTER: /* rx error counter */
4582 rc = card->stats.rx_errors;
4583 break;
4584 case MII_SREVISION: /* silicon revision */
4585 break;
4586 case MII_RESV1: /* reserved 1 */
4587 break;
4588 case MII_LBRERROR: /* loopback, rx, bypass error */
4589 break;
4590 case MII_PHYADDR: /* physical address */
4591 break;
4592 case MII_RESV2: /* reserved 2 */
4593 break;
4594 case MII_TPISTATUS: /* TPI status for 10mbps */
4595 break;
4596 case MII_NCONFIG: /* network interface config */
4597 break;
4598 default:
4599 break;
4600 }
4601 return rc;
4602 }
4603
4604
4605 static inline const char *
4606 qeth_arp_get_error_cause(int *rc)
4607 {
4608 switch (*rc) {
4609 case QETH_IPA_ARP_RC_FAILED:
4610 *rc = -EIO;
4611 return "operation failed";
4612 case QETH_IPA_ARP_RC_NOTSUPP:
4613 *rc = -EOPNOTSUPP;
4614 return "operation not supported";
4615 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4616 *rc = -EINVAL;
4617 return "argument out of range";
4618 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4619 *rc = -EOPNOTSUPP;
4620 return "query operation not supported";
4621 case QETH_IPA_ARP_RC_Q_NO_DATA:
4622 *rc = -ENOENT;
4623 return "no query data available";
4624 default:
4625 return "unknown error";
4626 }
4627 }
4628
4629 static int
4630 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4631 __u16, long);
4632
4633 static int
4634 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4635 {
4636 int tmp;
4637 int rc;
4638
4639 QETH_DBF_TEXT(trace,3,"arpstnoe");
4640
4641 /*
4642 * currently GuestLAN only supports the ARP assist function
4643 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4644 * thus we say EOPNOTSUPP for this ARP function
4645 */
4646 if (card->info.guestlan)
4647 return -EOPNOTSUPP;
4648 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4649 PRINT_WARN("ARP processing not supported "
4650 "on %s!\n", QETH_CARD_IFNAME(card));
4651 return -EOPNOTSUPP;
4652 }
4653 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4654 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4655 no_entries);
4656 if (rc) {
4657 tmp = rc;
4658 PRINT_WARN("Could not set number of ARP entries on %s: "
4659 "%s (0x%x/%d)\n",
4660 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4661 tmp, tmp);
4662 }
4663 return rc;
4664 }
4665
4666 static inline void
4667 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4668 struct qeth_arp_query_data *qdata,
4669 int entry_size, int uentry_size)
4670 {
4671 char *entry_ptr;
4672 char *uentry_ptr;
4673 int i;
4674
4675 entry_ptr = (char *)&qdata->data;
4676 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4677 for (i = 0; i < qdata->no_entries; ++i){
4678 /* strip off 32 bytes "media specific information" */
4679 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4680 entry_ptr += entry_size;
4681 uentry_ptr += uentry_size;
4682 }
4683 }
4684
4685 static int
4686 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4687 unsigned long data)
4688 {
4689 struct qeth_ipa_cmd *cmd;
4690 struct qeth_arp_query_data *qdata;
4691 struct qeth_arp_query_info *qinfo;
4692 int entry_size;
4693 int uentry_size;
4694 int i;
4695
4696 QETH_DBF_TEXT(trace,4,"arpquecb");
4697
4698 qinfo = (struct qeth_arp_query_info *) reply->param;
4699 cmd = (struct qeth_ipa_cmd *) data;
4700 if (cmd->hdr.return_code) {
4701 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4702 return 0;
4703 }
4704 if (cmd->data.setassparms.hdr.return_code) {
4705 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4706 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4707 return 0;
4708 }
4709 qdata = &cmd->data.setassparms.data.query_arp;
4710 switch(qdata->reply_bits){
4711 case 5:
4712 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4713 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4714 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4715 break;
4716 case 7:
4717 /* fall through to default */
4718 default:
4719 /* tr is the same as eth -> entry7 */
4720 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4721 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4722 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4723 break;
4724 }
4725 /* check if there is enough room in userspace */
4726 if ((qinfo->udata_len - qinfo->udata_offset) <
4727 qdata->no_entries * uentry_size){
4728 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4729 cmd->hdr.return_code = -ENOMEM;
4730 PRINT_WARN("query ARP user space buffer is too small for "
4731 "the returned number of ARP entries. "
4732 "Aborting query!\n");
4733 goto out_error;
4734 }
4735 QETH_DBF_TEXT_(trace, 4, "anore%i",
4736 cmd->data.setassparms.hdr.number_of_replies);
4737 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4738 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4739
4740 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4741 /* strip off "media specific information" */
4742 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4743 uentry_size);
4744 } else
4745 /*copy entries to user buffer*/
4746 memcpy(qinfo->udata + qinfo->udata_offset,
4747 (char *)&qdata->data, qdata->no_entries*uentry_size);
4748
4749 qinfo->no_entries += qdata->no_entries;
4750 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4751 /* check if all replies received ... */
4752 if (cmd->data.setassparms.hdr.seq_no <
4753 cmd->data.setassparms.hdr.number_of_replies)
4754 return 1;
4755 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4756 /* keep STRIP_ENTRIES flag so the user program can distinguish
4757 * stripped entries from normal ones */
4758 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4759 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4760 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4761 return 0;
4762 out_error:
4763 i = 0;
4764 memcpy(qinfo->udata, &i, 4);
4765 return 0;
4766 }
4767
4768 static int
4769 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4770 int len, int (*reply_cb)(struct qeth_card *,
4771 struct qeth_reply *,
4772 unsigned long),
4773 void *reply_param)
4774 {
4775 QETH_DBF_TEXT(trace,4,"sendarp");
4776
4777 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4778 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4779 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4780 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4781 reply_cb, reply_param);
4782 }
4783
4784 static int
4785 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4786 int len, int (*reply_cb)(struct qeth_card *,
4787 struct qeth_reply *,
4788 unsigned long),
4789 void *reply_param)
4790 {
4791 u16 s1, s2;
4792
4793 QETH_DBF_TEXT(trace,4,"sendsnmp");
4794
4795 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4796 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4797 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4798 /* adjust PDU length fields in IPA_PDU_HEADER */
4799 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4800 s2 = (u32) len;
4801 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4802 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4803 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4804 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4805 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4806 reply_cb, reply_param);
4807 }
4808
4809 static struct qeth_cmd_buffer *
4810 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4811 __u16, __u16, enum qeth_prot_versions);
4812 static int
4813 qeth_arp_query(struct qeth_card *card, char __user *udata)
4814 {
4815 struct qeth_cmd_buffer *iob;
4816 struct qeth_arp_query_info qinfo = {0, };
4817 int tmp;
4818 int rc;
4819
4820 QETH_DBF_TEXT(trace,3,"arpquery");
4821
4822 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4823 IPA_ARP_PROCESSING)) {
4824 PRINT_WARN("ARP processing not supported "
4825 "on %s!\n", QETH_CARD_IFNAME(card));
4826 return -EOPNOTSUPP;
4827 }
4828 /* get size of userspace buffer and mask_bits -> 6 bytes */
4829 if (copy_from_user(&qinfo, udata, 6))
4830 return -EFAULT;
4831 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4832 return -ENOMEM;
4833 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4834 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4835 IPA_CMD_ASS_ARP_QUERY_INFO,
4836 sizeof(int),QETH_PROT_IPV4);
4837
4838 rc = qeth_send_ipa_arp_cmd(card, iob,
4839 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4840 qeth_arp_query_cb, (void *)&qinfo);
4841 if (rc) {
4842 tmp = rc;
4843 PRINT_WARN("Error while querying ARP cache on %s: %s "
4844 "(0x%x/%d)\n",
4845 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4846 tmp, tmp);
4847 copy_to_user(udata, qinfo.udata, 4);
4848 } else {
4849 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4850 }
4851 kfree(qinfo.udata);
4852 return rc;
4853 }
4854
4855 /**
4856 * SNMP command callback
4857 */
4858 static int
4859 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4860 unsigned long sdata)
4861 {
4862 struct qeth_ipa_cmd *cmd;
4863 struct qeth_arp_query_info *qinfo;
4864 struct qeth_snmp_cmd *snmp;
4865 unsigned char *data;
4866 __u16 data_len;
4867
4868 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4869
4870 cmd = (struct qeth_ipa_cmd *) sdata;
4871 data = (unsigned char *)((char *)cmd - reply->offset);
4872 qinfo = (struct qeth_arp_query_info *) reply->param;
4873 snmp = &cmd->data.setadapterparms.data.snmp;
4874
4875 if (cmd->hdr.return_code) {
4876 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4877 return 0;
4878 }
4879 if (cmd->data.setadapterparms.hdr.return_code) {
4880 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4881 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4882 return 0;
4883 }
4884 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4885 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4886 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4887 else
4888 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4889
4890 /* check if there is enough room in userspace */
4891 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4892 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4893 cmd->hdr.return_code = -ENOMEM;
4894 return 0;
4895 }
4896 QETH_DBF_TEXT_(trace, 4, "snore%i",
4897 cmd->data.setadapterparms.hdr.used_total);
4898 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4899 /*copy entries to user buffer*/
4900 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4901 memcpy(qinfo->udata + qinfo->udata_offset,
4902 (char *)snmp,
4903 data_len + offsetof(struct qeth_snmp_cmd,data));
4904 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4905 } else {
4906 memcpy(qinfo->udata + qinfo->udata_offset,
4907 (char *)&snmp->request, data_len);
4908 }
4909 qinfo->udata_offset += data_len;
4910 /* check if all replies received ... */
4911 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4912 cmd->data.setadapterparms.hdr.used_total);
4913 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4914 cmd->data.setadapterparms.hdr.seq_no);
4915 if (cmd->data.setadapterparms.hdr.seq_no <
4916 cmd->data.setadapterparms.hdr.used_total)
4917 return 1;
4918 return 0;
4919 }
4920
4921 static struct qeth_cmd_buffer *
4922 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4923 enum qeth_prot_versions );
4924
4925 static struct qeth_cmd_buffer *
4926 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4927 {
4928 struct qeth_cmd_buffer *iob;
4929 struct qeth_ipa_cmd *cmd;
4930
4931 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4932 QETH_PROT_IPV4);
4933 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4934 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4935 cmd->data.setadapterparms.hdr.command_code = command;
4936 cmd->data.setadapterparms.hdr.used_total = 1;
4937 cmd->data.setadapterparms.hdr.seq_no = 1;
4938
4939 return iob;
4940 }
4941
4942 /**
4943 * function to send SNMP commands to OSA-E card
4944 */
4945 static int
4946 qeth_snmp_command(struct qeth_card *card, char __user *udata)
4947 {
4948 struct qeth_cmd_buffer *iob;
4949 struct qeth_ipa_cmd *cmd;
4950 struct qeth_snmp_ureq *ureq;
4951 int req_len;
4952 struct qeth_arp_query_info qinfo = {0, };
4953 int rc = 0;
4954
4955 QETH_DBF_TEXT(trace,3,"snmpcmd");
4956
4957 if (card->info.guestlan)
4958 return -EOPNOTSUPP;
4959
4960 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4961 (!card->options.layer2) ) {
4962 PRINT_WARN("SNMP Query MIBS not supported "
4963 "on %s!\n", QETH_CARD_IFNAME(card));
4964 return -EOPNOTSUPP;
4965 }
4966 /* skip 4 bytes (data_len struct member) to get req_len */
4967 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4968 return -EFAULT;
4969 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4970 if (!ureq) {
4971 QETH_DBF_TEXT(trace, 2, "snmpnome");
4972 return -ENOMEM;
4973 }
4974 if (copy_from_user(ureq, udata,
4975 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4976 kfree(ureq);
4977 return -EFAULT;
4978 }
4979 qinfo.udata_len = ureq->hdr.data_len;
4980 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
4981 kfree(ureq);
4982 return -ENOMEM;
4983 }
4984 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4985
4986 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4987 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4988 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4989 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4990 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4991 qeth_snmp_command_cb, (void *)&qinfo);
4992 if (rc)
4993 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4994 QETH_CARD_IFNAME(card), rc);
4995 else
4996 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4997
4998 kfree(ureq);
4999 kfree(qinfo.udata);
5000 return rc;
5001 }
5002
5003 static int
5004 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5005 unsigned long);
5006
5007 static int
5008 qeth_default_setadapterparms_cb(struct qeth_card *card,
5009 struct qeth_reply *reply,
5010 unsigned long data);
5011 static int
5012 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5013 __u16, long,
5014 int (*reply_cb)
5015 (struct qeth_card *, struct qeth_reply *, unsigned long),
5016 void *reply_param);
5017
5018 static int
5019 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5020 {
5021 struct qeth_cmd_buffer *iob;
5022 char buf[16];
5023 int tmp;
5024 int rc;
5025
5026 QETH_DBF_TEXT(trace,3,"arpadent");
5027
5028 /*
5029 * currently GuestLAN only supports the ARP assist function
5030 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5031 * thus we say EOPNOTSUPP for this ARP function
5032 */
5033 if (card->info.guestlan)
5034 return -EOPNOTSUPP;
5035 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5036 PRINT_WARN("ARP processing not supported "
5037 "on %s!\n", QETH_CARD_IFNAME(card));
5038 return -EOPNOTSUPP;
5039 }
5040
5041 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5042 IPA_CMD_ASS_ARP_ADD_ENTRY,
5043 sizeof(struct qeth_arp_cache_entry),
5044 QETH_PROT_IPV4);
5045 rc = qeth_send_setassparms(card, iob,
5046 sizeof(struct qeth_arp_cache_entry),
5047 (unsigned long) entry,
5048 qeth_default_setassparms_cb, NULL);
5049 if (rc) {
5050 tmp = rc;
5051 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5052 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5053 "%s (0x%x/%d)\n",
5054 buf, QETH_CARD_IFNAME(card),
5055 qeth_arp_get_error_cause(&rc), tmp, tmp);
5056 }
5057 return rc;
5058 }
5059
5060 static int
5061 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5062 {
5063 struct qeth_cmd_buffer *iob;
5064 char buf[16] = {0, };
5065 int tmp;
5066 int rc;
5067
5068 QETH_DBF_TEXT(trace,3,"arprment");
5069
5070 /*
5071 * currently GuestLAN only supports the ARP assist function
5072 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5073 * thus we say EOPNOTSUPP for this ARP function
5074 */
5075 if (card->info.guestlan)
5076 return -EOPNOTSUPP;
5077 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5078 PRINT_WARN("ARP processing not supported "
5079 "on %s!\n", QETH_CARD_IFNAME(card));
5080 return -EOPNOTSUPP;
5081 }
5082 memcpy(buf, entry, 12);
5083 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5084 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5085 12,
5086 QETH_PROT_IPV4);
5087 rc = qeth_send_setassparms(card, iob,
5088 12, (unsigned long)buf,
5089 qeth_default_setassparms_cb, NULL);
5090 if (rc) {
5091 tmp = rc;
5092 memset(buf, 0, 16);
5093 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5094 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5095 "%s (0x%x/%d)\n",
5096 buf, QETH_CARD_IFNAME(card),
5097 qeth_arp_get_error_cause(&rc), tmp, tmp);
5098 }
5099 return rc;
5100 }
5101
5102 static int
5103 qeth_arp_flush_cache(struct qeth_card *card)
5104 {
5105 int rc;
5106 int tmp;
5107
5108 QETH_DBF_TEXT(trace,3,"arpflush");
5109
5110 /*
5111 * currently GuestLAN only supports the ARP assist function
5112 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5113 * thus we say EOPNOTSUPP for this ARP function
5114 */
5115 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5116 return -EOPNOTSUPP;
5117 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5118 PRINT_WARN("ARP processing not supported "
5119 "on %s!\n", QETH_CARD_IFNAME(card));
5120 return -EOPNOTSUPP;
5121 }
5122 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5123 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5124 if (rc){
5125 tmp = rc;
5126 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5127 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5128 tmp, tmp);
5129 }
5130 return rc;
5131 }
5132
5133 static int
5134 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5135 {
5136 struct qeth_card *card = (struct qeth_card *)dev->priv;
5137 struct qeth_arp_cache_entry arp_entry;
5138 struct mii_ioctl_data *mii_data;
5139 int rc = 0;
5140
5141 if (!card)
5142 return -ENODEV;
5143
5144 if ((card->state != CARD_STATE_UP) &&
5145 (card->state != CARD_STATE_SOFTSETUP))
5146 return -ENODEV;
5147
5148 if (card->info.type == QETH_CARD_TYPE_OSN)
5149 return -EPERM;
5150
5151 switch (cmd){
5152 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5153 if ( !capable(CAP_NET_ADMIN) ||
5154 (card->options.layer2) ) {
5155 rc = -EPERM;
5156 break;
5157 }
5158 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5159 break;
5160 case SIOC_QETH_ARP_QUERY_INFO:
5161 if ( !capable(CAP_NET_ADMIN) ||
5162 (card->options.layer2) ) {
5163 rc = -EPERM;
5164 break;
5165 }
5166 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5167 break;
5168 case SIOC_QETH_ARP_ADD_ENTRY:
5169 if ( !capable(CAP_NET_ADMIN) ||
5170 (card->options.layer2) ) {
5171 rc = -EPERM;
5172 break;
5173 }
5174 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5175 sizeof(struct qeth_arp_cache_entry)))
5176 rc = -EFAULT;
5177 else
5178 rc = qeth_arp_add_entry(card, &arp_entry);
5179 break;
5180 case SIOC_QETH_ARP_REMOVE_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_remove_entry(card, &arp_entry);
5191 break;
5192 case SIOC_QETH_ARP_FLUSH_CACHE:
5193 if ( !capable(CAP_NET_ADMIN) ||
5194 (card->options.layer2) ) {
5195 rc = -EPERM;
5196 break;
5197 }
5198 rc = qeth_arp_flush_cache(card);
5199 break;
5200 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5201 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5202 break;
5203 case SIOC_QETH_GET_CARD_TYPE:
5204 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5205 !card->info.guestlan)
5206 return 1;
5207 return 0;
5208 break;
5209 case SIOCGMIIPHY:
5210 mii_data = if_mii(rq);
5211 mii_data->phy_id = 0;
5212 break;
5213 case SIOCGMIIREG:
5214 mii_data = if_mii(rq);
5215 if (mii_data->phy_id != 0)
5216 rc = -EINVAL;
5217 else
5218 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5219 mii_data->reg_num);
5220 break;
5221 default:
5222 rc = -EOPNOTSUPP;
5223 }
5224 if (rc)
5225 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5226 return rc;
5227 }
5228
5229 static struct net_device_stats *
5230 qeth_get_stats(struct net_device *dev)
5231 {
5232 struct qeth_card *card;
5233
5234 card = (struct qeth_card *) (dev->priv);
5235
5236 QETH_DBF_TEXT(trace,5,"getstat");
5237
5238 return &card->stats;
5239 }
5240
5241 static int
5242 qeth_change_mtu(struct net_device *dev, int new_mtu)
5243 {
5244 struct qeth_card *card;
5245 char dbf_text[15];
5246
5247 card = (struct qeth_card *) (dev->priv);
5248
5249 QETH_DBF_TEXT(trace,4,"chgmtu");
5250 sprintf(dbf_text, "%8x", new_mtu);
5251 QETH_DBF_TEXT(trace,4,dbf_text);
5252
5253 if (new_mtu < 64)
5254 return -EINVAL;
5255 if (new_mtu > 65535)
5256 return -EINVAL;
5257 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5258 (!qeth_mtu_is_valid(card, new_mtu)))
5259 return -EINVAL;
5260 dev->mtu = new_mtu;
5261 return 0;
5262 }
5263
5264 #ifdef CONFIG_QETH_VLAN
5265 static void
5266 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5267 {
5268 struct qeth_card *card;
5269 unsigned long flags;
5270
5271 QETH_DBF_TEXT(trace,4,"vlanreg");
5272
5273 card = (struct qeth_card *) dev->priv;
5274 spin_lock_irqsave(&card->vlanlock, flags);
5275 card->vlangrp = grp;
5276 spin_unlock_irqrestore(&card->vlanlock, flags);
5277 }
5278
5279 static inline void
5280 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5281 unsigned short vid)
5282 {
5283 int i;
5284 struct sk_buff *skb;
5285 struct sk_buff_head tmp_list;
5286
5287 skb_queue_head_init(&tmp_list);
5288 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5289 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5290 while ((skb = skb_dequeue(&buf->skb_list))){
5291 if (vlan_tx_tag_present(skb) &&
5292 (vlan_tx_tag_get(skb) == vid)) {
5293 atomic_dec(&skb->users);
5294 dev_kfree_skb(skb);
5295 } else
5296 skb_queue_tail(&tmp_list, skb);
5297 }
5298 }
5299 while ((skb = skb_dequeue(&tmp_list)))
5300 skb_queue_tail(&buf->skb_list, skb);
5301 }
5302
5303 static void
5304 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5305 {
5306 int i, j;
5307
5308 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5309 for (i = 0; i < card->qdio.no_out_queues; ++i){
5310 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5311 qeth_free_vlan_buffer(card, &card->qdio.
5312 out_qs[i]->bufs[j], vid);
5313 }
5314 }
5315
5316 static void
5317 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5318 {
5319 struct in_device *in_dev;
5320 struct in_ifaddr *ifa;
5321 struct qeth_ipaddr *addr;
5322
5323 QETH_DBF_TEXT(trace, 4, "frvaddr4");
5324
5325 rcu_read_lock();
5326 in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5327 if (!in_dev)
5328 goto out;
5329 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5330 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5331 if (addr){
5332 addr->u.a4.addr = ifa->ifa_address;
5333 addr->u.a4.mask = ifa->ifa_mask;
5334 addr->type = QETH_IP_TYPE_NORMAL;
5335 if (!qeth_delete_ip(card, addr))
5336 kfree(addr);
5337 }
5338 }
5339 out:
5340 rcu_read_unlock();
5341 }
5342
5343 static void
5344 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5345 {
5346 #ifdef CONFIG_QETH_IPV6
5347 struct inet6_dev *in6_dev;
5348 struct inet6_ifaddr *ifa;
5349 struct qeth_ipaddr *addr;
5350
5351 QETH_DBF_TEXT(trace, 4, "frvaddr6");
5352
5353 in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5354 if (!in6_dev)
5355 return;
5356 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5357 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5358 if (addr){
5359 memcpy(&addr->u.a6.addr, &ifa->addr,
5360 sizeof(struct in6_addr));
5361 addr->u.a6.pfxlen = ifa->prefix_len;
5362 addr->type = QETH_IP_TYPE_NORMAL;
5363 if (!qeth_delete_ip(card, addr))
5364 kfree(addr);
5365 }
5366 }
5367 in6_dev_put(in6_dev);
5368 #endif /* CONFIG_QETH_IPV6 */
5369 }
5370
5371 static void
5372 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5373 {
5374 if (card->options.layer2 || !card->vlangrp)
5375 return;
5376 qeth_free_vlan_addresses4(card, vid);
5377 qeth_free_vlan_addresses6(card, vid);
5378 }
5379
5380 static int
5381 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5382 struct qeth_reply *reply,
5383 unsigned long data)
5384 {
5385 struct qeth_ipa_cmd *cmd;
5386
5387 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5388 cmd = (struct qeth_ipa_cmd *) data;
5389 if (cmd->hdr.return_code) {
5390 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5391 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5392 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5393 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5394 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5395 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5396 }
5397 return 0;
5398 }
5399
5400 static int
5401 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5402 enum qeth_ipa_cmds ipacmd)
5403 {
5404 struct qeth_ipa_cmd *cmd;
5405 struct qeth_cmd_buffer *iob;
5406
5407 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5408 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5409 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5410 cmd->data.setdelvlan.vlan_id = i;
5411 return qeth_send_ipa_cmd(card, iob,
5412 qeth_layer2_send_setdelvlan_cb, NULL);
5413 }
5414
5415 static void
5416 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5417 {
5418 unsigned short i;
5419
5420 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5421
5422 if (!card->vlangrp)
5423 return;
5424 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5425 if (card->vlangrp->vlan_devices[i] == NULL)
5426 continue;
5427 if (clear)
5428 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5429 else
5430 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5431 }
5432 }
5433
5434 /*add_vid is layer 2 used only ....*/
5435 static void
5436 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5437 {
5438 struct qeth_card *card;
5439
5440 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5441
5442 card = (struct qeth_card *) dev->priv;
5443 if (!card->options.layer2)
5444 return;
5445 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5446 }
5447
5448 /*... kill_vid used for both modes*/
5449 static void
5450 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5451 {
5452 struct qeth_card *card;
5453 unsigned long flags;
5454
5455 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5456
5457 card = (struct qeth_card *) dev->priv;
5458 /* free all skbs for the vlan device */
5459 qeth_free_vlan_skbs(card, vid);
5460 spin_lock_irqsave(&card->vlanlock, flags);
5461 /* unregister IP addresses of vlan device */
5462 qeth_free_vlan_addresses(card, vid);
5463 if (card->vlangrp)
5464 card->vlangrp->vlan_devices[vid] = NULL;
5465 spin_unlock_irqrestore(&card->vlanlock, flags);
5466 if (card->options.layer2)
5467 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5468 qeth_set_multicast_list(card->dev);
5469 }
5470 #endif
5471 /**
5472 * Examine hardware response to SET_PROMISC_MODE
5473 */
5474 static int
5475 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5476 struct qeth_reply *reply,
5477 unsigned long data)
5478 {
5479 struct qeth_ipa_cmd *cmd;
5480 struct qeth_ipacmd_setadpparms *setparms;
5481
5482 QETH_DBF_TEXT(trace,4,"prmadpcb");
5483
5484 cmd = (struct qeth_ipa_cmd *) data;
5485 setparms = &(cmd->data.setadapterparms);
5486
5487 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5488 if (cmd->hdr.return_code) {
5489 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5490 setparms->data.mode = SET_PROMISC_MODE_OFF;
5491 }
5492 card->info.promisc_mode = setparms->data.mode;
5493 return 0;
5494 }
5495 /*
5496 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5497 */
5498 static void
5499 qeth_setadp_promisc_mode(struct qeth_card *card)
5500 {
5501 enum qeth_ipa_promisc_modes mode;
5502 struct net_device *dev = card->dev;
5503 struct qeth_cmd_buffer *iob;
5504 struct qeth_ipa_cmd *cmd;
5505
5506 QETH_DBF_TEXT(trace, 4, "setprom");
5507
5508 if (((dev->flags & IFF_PROMISC) &&
5509 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5510 (!(dev->flags & IFF_PROMISC) &&
5511 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5512 return;
5513 mode = SET_PROMISC_MODE_OFF;
5514 if (dev->flags & IFF_PROMISC)
5515 mode = SET_PROMISC_MODE_ON;
5516 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5517
5518 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5519 sizeof(struct qeth_ipacmd_setadpparms));
5520 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5521 cmd->data.setadapterparms.data.mode = mode;
5522 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5523 }
5524
5525 /**
5526 * set multicast address on card
5527 */
5528 static void
5529 qeth_set_multicast_list(struct net_device *dev)
5530 {
5531 struct qeth_card *card = (struct qeth_card *) dev->priv;
5532
5533 if (card->info.type == QETH_CARD_TYPE_OSN)
5534 return ;
5535
5536 QETH_DBF_TEXT(trace, 3, "setmulti");
5537 qeth_delete_mc_addresses(card);
5538 if (card->options.layer2) {
5539 qeth_layer2_add_multicast(card);
5540 goto out;
5541 }
5542 qeth_add_multicast_ipv4(card);
5543 #ifdef CONFIG_QETH_IPV6
5544 qeth_add_multicast_ipv6(card);
5545 #endif
5546 out:
5547 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5548 schedule_work(&card->kernel_thread_starter);
5549 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5550 return;
5551 if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5552 schedule_work(&card->kernel_thread_starter);
5553 }
5554
5555 static int
5556 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5557 {
5558 return 0;
5559 }
5560
5561 static void
5562 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5563 {
5564 if (dev->type == ARPHRD_IEEE802_TR)
5565 ip_tr_mc_map(ipm, mac);
5566 else
5567 ip_eth_mc_map(ipm, mac);
5568 }
5569
5570 static struct qeth_ipaddr *
5571 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5572 {
5573 struct qeth_ipaddr *addr;
5574
5575 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5576 if (addr == NULL) {
5577 PRINT_WARN("Not enough memory to add address\n");
5578 return NULL;
5579 }
5580 addr->type = QETH_IP_TYPE_NORMAL;
5581 addr->proto = prot;
5582 return addr;
5583 }
5584
5585 int
5586 qeth_osn_assist(struct net_device *dev,
5587 void *data,
5588 int data_len)
5589 {
5590 struct qeth_cmd_buffer *iob;
5591 struct qeth_card *card;
5592 int rc;
5593
5594 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5595 if (!dev)
5596 return -ENODEV;
5597 card = (struct qeth_card *)dev->priv;
5598 if (!card)
5599 return -ENODEV;
5600 if ((card->state != CARD_STATE_UP) &&
5601 (card->state != CARD_STATE_SOFTSETUP))
5602 return -ENODEV;
5603 iob = qeth_wait_for_buffer(&card->write);
5604 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5605 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5606 return rc;
5607 }
5608
5609 static struct net_device *
5610 qeth_netdev_by_devno(unsigned char *read_dev_no)
5611 {
5612 struct qeth_card *card;
5613 struct net_device *ndev;
5614 unsigned char *readno;
5615 __u16 temp_dev_no, card_dev_no;
5616 char *endp;
5617 unsigned long flags;
5618
5619 ndev = NULL;
5620 memcpy(&temp_dev_no, read_dev_no, 2);
5621 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5622 list_for_each_entry(card, &qeth_card_list.list, list) {
5623 readno = CARD_RDEV_ID(card);
5624 readno += (strlen(readno) - 4);
5625 card_dev_no = simple_strtoul(readno, &endp, 16);
5626 if (card_dev_no == temp_dev_no) {
5627 ndev = card->dev;
5628 break;
5629 }
5630 }
5631 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5632 return ndev;
5633 }
5634
5635 int
5636 qeth_osn_register(unsigned char *read_dev_no,
5637 struct net_device **dev,
5638 int (*assist_cb)(struct net_device *, void *),
5639 int (*data_cb)(struct sk_buff *))
5640 {
5641 struct qeth_card * card;
5642
5643 QETH_DBF_TEXT(trace, 2, "osnreg");
5644 *dev = qeth_netdev_by_devno(read_dev_no);
5645 if (*dev == NULL)
5646 return -ENODEV;
5647 card = (struct qeth_card *)(*dev)->priv;
5648 if (!card)
5649 return -ENODEV;
5650 if ((assist_cb == NULL) || (data_cb == NULL))
5651 return -EINVAL;
5652 card->osn_info.assist_cb = assist_cb;
5653 card->osn_info.data_cb = data_cb;
5654 return 0;
5655 }
5656
5657 void
5658 qeth_osn_deregister(struct net_device * dev)
5659 {
5660 struct qeth_card *card;
5661
5662 QETH_DBF_TEXT(trace, 2, "osndereg");
5663 if (!dev)
5664 return;
5665 card = (struct qeth_card *)dev->priv;
5666 if (!card)
5667 return;
5668 card->osn_info.assist_cb = NULL;
5669 card->osn_info.data_cb = NULL;
5670 return;
5671 }
5672
5673 static void
5674 qeth_delete_mc_addresses(struct qeth_card *card)
5675 {
5676 struct qeth_ipaddr *iptodo;
5677 unsigned long flags;
5678
5679 QETH_DBF_TEXT(trace,4,"delmc");
5680 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5681 if (!iptodo) {
5682 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5683 return;
5684 }
5685 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5686 spin_lock_irqsave(&card->ip_lock, flags);
5687 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5688 kfree(iptodo);
5689 spin_unlock_irqrestore(&card->ip_lock, flags);
5690 }
5691
5692 static inline void
5693 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5694 {
5695 struct qeth_ipaddr *ipm;
5696 struct ip_mc_list *im4;
5697 char buf[MAX_ADDR_LEN];
5698
5699 QETH_DBF_TEXT(trace,4,"addmc");
5700 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5701 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5702 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5703 if (!ipm)
5704 continue;
5705 ipm->u.a4.addr = im4->multiaddr;
5706 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5707 ipm->is_multicast = 1;
5708 if (!qeth_add_ip(card,ipm))
5709 kfree(ipm);
5710 }
5711 }
5712
5713 static inline void
5714 qeth_add_vlan_mc(struct qeth_card *card)
5715 {
5716 #ifdef CONFIG_QETH_VLAN
5717 struct in_device *in_dev;
5718 struct vlan_group *vg;
5719 int i;
5720
5721 QETH_DBF_TEXT(trace,4,"addmcvl");
5722 if ( ((card->options.layer2 == 0) &&
5723 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5724 (card->vlangrp == NULL) )
5725 return ;
5726
5727 vg = card->vlangrp;
5728 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5729 if (vg->vlan_devices[i] == NULL ||
5730 !(vg->vlan_devices[i]->flags & IFF_UP))
5731 continue;
5732 in_dev = in_dev_get(vg->vlan_devices[i]);
5733 if (!in_dev)
5734 continue;
5735 read_lock(&in_dev->mc_list_lock);
5736 qeth_add_mc(card,in_dev);
5737 read_unlock(&in_dev->mc_list_lock);
5738 in_dev_put(in_dev);
5739 }
5740 #endif
5741 }
5742
5743 static void
5744 qeth_add_multicast_ipv4(struct qeth_card *card)
5745 {
5746 struct in_device *in4_dev;
5747
5748 QETH_DBF_TEXT(trace,4,"chkmcv4");
5749 in4_dev = in_dev_get(card->dev);
5750 if (in4_dev == NULL)
5751 return;
5752 read_lock(&in4_dev->mc_list_lock);
5753 qeth_add_mc(card, in4_dev);
5754 qeth_add_vlan_mc(card);
5755 read_unlock(&in4_dev->mc_list_lock);
5756 in_dev_put(in4_dev);
5757 }
5758
5759 static void
5760 qeth_layer2_add_multicast(struct qeth_card *card)
5761 {
5762 struct qeth_ipaddr *ipm;
5763 struct dev_mc_list *dm;
5764
5765 QETH_DBF_TEXT(trace,4,"L2addmc");
5766 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5767 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5768 if (!ipm)
5769 continue;
5770 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5771 ipm->is_multicast = 1;
5772 if (!qeth_add_ip(card, ipm))
5773 kfree(ipm);
5774 }
5775 }
5776
5777 #ifdef CONFIG_QETH_IPV6
5778 static inline void
5779 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5780 {
5781 struct qeth_ipaddr *ipm;
5782 struct ifmcaddr6 *im6;
5783 char buf[MAX_ADDR_LEN];
5784
5785 QETH_DBF_TEXT(trace,4,"addmc6");
5786 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5787 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5788 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5789 if (!ipm)
5790 continue;
5791 ipm->is_multicast = 1;
5792 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5793 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5794 sizeof(struct in6_addr));
5795 if (!qeth_add_ip(card,ipm))
5796 kfree(ipm);
5797 }
5798 }
5799
5800 static inline void
5801 qeth_add_vlan_mc6(struct qeth_card *card)
5802 {
5803 #ifdef CONFIG_QETH_VLAN
5804 struct inet6_dev *in_dev;
5805 struct vlan_group *vg;
5806 int i;
5807
5808 QETH_DBF_TEXT(trace,4,"admc6vl");
5809 if ( ((card->options.layer2 == 0) &&
5810 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5811 (card->vlangrp == NULL))
5812 return ;
5813
5814 vg = card->vlangrp;
5815 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5816 if (vg->vlan_devices[i] == NULL ||
5817 !(vg->vlan_devices[i]->flags & IFF_UP))
5818 continue;
5819 in_dev = in6_dev_get(vg->vlan_devices[i]);
5820 if (!in_dev)
5821 continue;
5822 read_lock(&in_dev->lock);
5823 qeth_add_mc6(card,in_dev);
5824 read_unlock(&in_dev->lock);
5825 in6_dev_put(in_dev);
5826 }
5827 #endif /* CONFIG_QETH_VLAN */
5828 }
5829
5830 static void
5831 qeth_add_multicast_ipv6(struct qeth_card *card)
5832 {
5833 struct inet6_dev *in6_dev;
5834
5835 QETH_DBF_TEXT(trace,4,"chkmcv6");
5836 if (!qeth_is_supported(card, IPA_IPV6))
5837 return ;
5838 in6_dev = in6_dev_get(card->dev);
5839 if (in6_dev == NULL)
5840 return;
5841 read_lock(&in6_dev->lock);
5842 qeth_add_mc6(card, in6_dev);
5843 qeth_add_vlan_mc6(card);
5844 read_unlock(&in6_dev->lock);
5845 in6_dev_put(in6_dev);
5846 }
5847 #endif /* CONFIG_QETH_IPV6 */
5848
5849 static int
5850 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5851 enum qeth_ipa_cmds ipacmd,
5852 int (*reply_cb) (struct qeth_card *,
5853 struct qeth_reply*,
5854 unsigned long))
5855 {
5856 struct qeth_ipa_cmd *cmd;
5857 struct qeth_cmd_buffer *iob;
5858
5859 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5860 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5861 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5862 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5863 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5864 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5865 }
5866
5867 static int
5868 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5869 struct qeth_reply *reply,
5870 unsigned long data)
5871 {
5872 struct qeth_ipa_cmd *cmd;
5873 __u8 *mac;
5874
5875 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5876 cmd = (struct qeth_ipa_cmd *) data;
5877 mac = &cmd->data.setdelmac.mac[0];
5878 /* MAC already registered, needed in couple/uncouple case */
5879 if (cmd->hdr.return_code == 0x2005) {
5880 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5881 "already existing on %s \n",
5882 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5883 QETH_CARD_IFNAME(card));
5884 cmd->hdr.return_code = 0;
5885 }
5886 if (cmd->hdr.return_code)
5887 PRINT_ERR("Could not set group MAC " \
5888 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5889 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5890 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5891 return 0;
5892 }
5893
5894 static int
5895 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5896 {
5897 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5898 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5899 qeth_layer2_send_setgroupmac_cb);
5900 }
5901
5902 static int
5903 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5904 struct qeth_reply *reply,
5905 unsigned long data)
5906 {
5907 struct qeth_ipa_cmd *cmd;
5908 __u8 *mac;
5909
5910 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5911 cmd = (struct qeth_ipa_cmd *) data;
5912 mac = &cmd->data.setdelmac.mac[0];
5913 if (cmd->hdr.return_code)
5914 PRINT_ERR("Could not delete group MAC " \
5915 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5916 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5917 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5918 return 0;
5919 }
5920
5921 static int
5922 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5923 {
5924 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5925 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5926 qeth_layer2_send_delgroupmac_cb);
5927 }
5928
5929 static int
5930 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5931 struct qeth_reply *reply,
5932 unsigned long data)
5933 {
5934 struct qeth_ipa_cmd *cmd;
5935
5936 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5937 cmd = (struct qeth_ipa_cmd *) data;
5938 if (cmd->hdr.return_code) {
5939 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5940 PRINT_WARN("Error in registering MAC address on " \
5941 "device %s: x%x\n", CARD_BUS_ID(card),
5942 cmd->hdr.return_code);
5943 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5944 cmd->hdr.return_code = -EIO;
5945 } else {
5946 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5947 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5948 OSA_ADDR_LEN);
5949 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5950 "successfully registered on device %s\n",
5951 card->dev->dev_addr[0], card->dev->dev_addr[1],
5952 card->dev->dev_addr[2], card->dev->dev_addr[3],
5953 card->dev->dev_addr[4], card->dev->dev_addr[5],
5954 card->dev->name);
5955 }
5956 return 0;
5957 }
5958
5959 static int
5960 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5961 {
5962 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5963 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5964 qeth_layer2_send_setmac_cb);
5965 }
5966
5967 static int
5968 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5969 struct qeth_reply *reply,
5970 unsigned long data)
5971 {
5972 struct qeth_ipa_cmd *cmd;
5973
5974 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5975 cmd = (struct qeth_ipa_cmd *) data;
5976 if (cmd->hdr.return_code) {
5977 PRINT_WARN("Error in deregistering MAC address on " \
5978 "device %s: x%x\n", CARD_BUS_ID(card),
5979 cmd->hdr.return_code);
5980 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5981 cmd->hdr.return_code = -EIO;
5982 return 0;
5983 }
5984 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5985
5986 return 0;
5987 }
5988 static int
5989 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5990 {
5991 QETH_DBF_TEXT(trace, 2, "L2Delmac");
5992 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
5993 return 0;
5994 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5995 qeth_layer2_send_delmac_cb);
5996 }
5997
5998 static int
5999 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6000 {
6001 struct sockaddr *addr = p;
6002 struct qeth_card *card;
6003 int rc = 0;
6004
6005 QETH_DBF_TEXT(trace, 3, "setmac");
6006
6007 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6008 QETH_DBF_TEXT(trace, 3, "setmcINV");
6009 return -EOPNOTSUPP;
6010 }
6011 card = (struct qeth_card *) dev->priv;
6012
6013 if (!card->options.layer2) {
6014 PRINT_WARN("Setting MAC address on %s is not supported "
6015 "in Layer 3 mode.\n", dev->name);
6016 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6017 return -EOPNOTSUPP;
6018 }
6019 if (card->info.type == QETH_CARD_TYPE_OSN) {
6020 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6021 dev->name);
6022 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6023 return -EOPNOTSUPP;
6024 }
6025 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6026 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6027 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6028 if (!rc)
6029 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6030 return rc;
6031 }
6032
6033 static void
6034 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6035 __u8 command, enum qeth_prot_versions prot)
6036 {
6037 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6038 cmd->hdr.command = command;
6039 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6040 cmd->hdr.seqno = card->seqno.ipa;
6041 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6042 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6043 if (card->options.layer2)
6044 cmd->hdr.prim_version_no = 2;
6045 else
6046 cmd->hdr.prim_version_no = 1;
6047 cmd->hdr.param_count = 1;
6048 cmd->hdr.prot_version = prot;
6049 cmd->hdr.ipa_supported = 0;
6050 cmd->hdr.ipa_enabled = 0;
6051 }
6052
6053 static struct qeth_cmd_buffer *
6054 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6055 enum qeth_prot_versions prot)
6056 {
6057 struct qeth_cmd_buffer *iob;
6058 struct qeth_ipa_cmd *cmd;
6059
6060 iob = qeth_wait_for_buffer(&card->write);
6061 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6062 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6063
6064 return iob;
6065 }
6066
6067 static int
6068 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6069 {
6070 int rc;
6071 struct qeth_cmd_buffer *iob;
6072 struct qeth_ipa_cmd *cmd;
6073
6074 QETH_DBF_TEXT(trace,4,"setdelmc");
6075
6076 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6077 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6078 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6079 if (addr->proto == QETH_PROT_IPV6)
6080 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6081 sizeof(struct in6_addr));
6082 else
6083 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6084
6085 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6086
6087 return rc;
6088 }
6089 static inline void
6090 qeth_fill_netmask(u8 *netmask, unsigned int len)
6091 {
6092 int i,j;
6093 for (i=0;i<16;i++) {
6094 j=(len)-(i*8);
6095 if (j >= 8)
6096 netmask[i] = 0xff;
6097 else if (j > 0)
6098 netmask[i] = (u8)(0xFF00>>j);
6099 else
6100 netmask[i] = 0;
6101 }
6102 }
6103
6104 static int
6105 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6106 int ipacmd, unsigned int flags)
6107 {
6108 int rc;
6109 struct qeth_cmd_buffer *iob;
6110 struct qeth_ipa_cmd *cmd;
6111 __u8 netmask[16];
6112
6113 QETH_DBF_TEXT(trace,4,"setdelip");
6114 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6115
6116 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6117 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6118 if (addr->proto == QETH_PROT_IPV6) {
6119 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6120 sizeof(struct in6_addr));
6121 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6122 memcpy(cmd->data.setdelip6.mask, netmask,
6123 sizeof(struct in6_addr));
6124 cmd->data.setdelip6.flags = flags;
6125 } else {
6126 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6127 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6128 cmd->data.setdelip4.flags = flags;
6129 }
6130
6131 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6132
6133 return rc;
6134 }
6135
6136 static int
6137 qeth_layer2_register_addr_entry(struct qeth_card *card,
6138 struct qeth_ipaddr *addr)
6139 {
6140 if (!addr->is_multicast)
6141 return 0;
6142 QETH_DBF_TEXT(trace, 2, "setgmac");
6143 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6144 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6145 }
6146
6147 static int
6148 qeth_layer2_deregister_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, "delgmac");
6154 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6155 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6156 }
6157
6158 static int
6159 qeth_layer3_register_addr_entry(struct qeth_card *card,
6160 struct qeth_ipaddr *addr)
6161 {
6162 char buf[50];
6163 int rc;
6164 int cnt = 3;
6165
6166 if (addr->proto == QETH_PROT_IPV4) {
6167 QETH_DBF_TEXT(trace, 2,"setaddr4");
6168 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6169 } else if (addr->proto == QETH_PROT_IPV6) {
6170 QETH_DBF_TEXT(trace, 2, "setaddr6");
6171 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6172 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6173 } else {
6174 QETH_DBF_TEXT(trace, 2, "setaddr?");
6175 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6176 }
6177 do {
6178 if (addr->is_multicast)
6179 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6180 else
6181 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6182 addr->set_flags);
6183 if (rc)
6184 QETH_DBF_TEXT(trace, 2, "failed");
6185 } while ((--cnt > 0) && rc);
6186 if (rc){
6187 QETH_DBF_TEXT(trace, 2, "FAILED");
6188 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6189 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6190 buf, rc, rc);
6191 }
6192 return rc;
6193 }
6194
6195 static int
6196 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6197 struct qeth_ipaddr *addr)
6198 {
6199 //char buf[50];
6200 int rc;
6201
6202 if (addr->proto == QETH_PROT_IPV4) {
6203 QETH_DBF_TEXT(trace, 2,"deladdr4");
6204 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6205 } else if (addr->proto == QETH_PROT_IPV6) {
6206 QETH_DBF_TEXT(trace, 2, "deladdr6");
6207 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6208 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6209 } else {
6210 QETH_DBF_TEXT(trace, 2, "deladdr?");
6211 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6212 }
6213 if (addr->is_multicast)
6214 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6215 else
6216 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6217 addr->del_flags);
6218 if (rc) {
6219 QETH_DBF_TEXT(trace, 2, "failed");
6220 /* TODO: re-activate this warning as soon as we have a
6221 * clean mirco code
6222 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6223 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6224 buf, rc);
6225 */
6226 }
6227 return rc;
6228 }
6229
6230 static int
6231 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6232 {
6233 if (card->options.layer2)
6234 return qeth_layer2_register_addr_entry(card, addr);
6235
6236 return qeth_layer3_register_addr_entry(card, addr);
6237 }
6238
6239 static int
6240 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6241 {
6242 if (card->options.layer2)
6243 return qeth_layer2_deregister_addr_entry(card, addr);
6244
6245 return qeth_layer3_deregister_addr_entry(card, addr);
6246 }
6247
6248 static u32
6249 qeth_ethtool_get_tx_csum(struct net_device *dev)
6250 {
6251 /* We may need to say that we support tx csum offload if
6252 * we do EDDP or TSO. There are discussions going on to
6253 * enforce rules in the stack and in ethtool that make
6254 * SG and TSO depend on HW_CSUM. At the moment there are
6255 * no such rules....
6256 * If we say yes here, we have to checksum outbound packets
6257 * any time. */
6258 return 0;
6259 }
6260
6261 static int
6262 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6263 {
6264 return -EINVAL;
6265 }
6266
6267 static u32
6268 qeth_ethtool_get_rx_csum(struct net_device *dev)
6269 {
6270 struct qeth_card *card = (struct qeth_card *)dev->priv;
6271
6272 return (card->options.checksum_type == HW_CHECKSUMMING);
6273 }
6274
6275 static int
6276 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6277 {
6278 struct qeth_card *card = (struct qeth_card *)dev->priv;
6279
6280 if ((card->state != CARD_STATE_DOWN) &&
6281 (card->state != CARD_STATE_RECOVER))
6282 return -EPERM;
6283 if (data)
6284 card->options.checksum_type = HW_CHECKSUMMING;
6285 else
6286 card->options.checksum_type = SW_CHECKSUMMING;
6287 return 0;
6288 }
6289
6290 static u32
6291 qeth_ethtool_get_sg(struct net_device *dev)
6292 {
6293 struct qeth_card *card = (struct qeth_card *)dev->priv;
6294
6295 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6296 (dev->features & NETIF_F_SG));
6297 }
6298
6299 static int
6300 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6301 {
6302 struct qeth_card *card = (struct qeth_card *)dev->priv;
6303
6304 if (data) {
6305 if (card->options.large_send != QETH_LARGE_SEND_NO)
6306 dev->features |= NETIF_F_SG;
6307 else {
6308 dev->features &= ~NETIF_F_SG;
6309 return -EINVAL;
6310 }
6311 } else
6312 dev->features &= ~NETIF_F_SG;
6313 return 0;
6314 }
6315
6316 static u32
6317 qeth_ethtool_get_tso(struct net_device *dev)
6318 {
6319 struct qeth_card *card = (struct qeth_card *)dev->priv;
6320
6321 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6322 (dev->features & NETIF_F_TSO));
6323 }
6324
6325 static int
6326 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6327 {
6328 struct qeth_card *card = (struct qeth_card *)dev->priv;
6329
6330 if (data) {
6331 if (card->options.large_send != QETH_LARGE_SEND_NO)
6332 dev->features |= NETIF_F_TSO;
6333 else {
6334 dev->features &= ~NETIF_F_TSO;
6335 return -EINVAL;
6336 }
6337 } else
6338 dev->features &= ~NETIF_F_TSO;
6339 return 0;
6340 }
6341
6342 static struct ethtool_ops qeth_ethtool_ops = {
6343 .get_tx_csum = qeth_ethtool_get_tx_csum,
6344 .set_tx_csum = qeth_ethtool_set_tx_csum,
6345 .get_rx_csum = qeth_ethtool_get_rx_csum,
6346 .set_rx_csum = qeth_ethtool_set_rx_csum,
6347 .get_sg = qeth_ethtool_get_sg,
6348 .set_sg = qeth_ethtool_set_sg,
6349 .get_tso = qeth_ethtool_get_tso,
6350 .set_tso = qeth_ethtool_set_tso,
6351 };
6352
6353 static int
6354 qeth_netdev_init(struct net_device *dev)
6355 {
6356 struct qeth_card *card;
6357
6358 card = (struct qeth_card *) dev->priv;
6359
6360 QETH_DBF_TEXT(trace,3,"initdev");
6361
6362 dev->tx_timeout = &qeth_tx_timeout;
6363 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6364 dev->open = qeth_open;
6365 dev->stop = qeth_stop;
6366 dev->hard_start_xmit = qeth_hard_start_xmit;
6367 dev->do_ioctl = qeth_do_ioctl;
6368 dev->get_stats = qeth_get_stats;
6369 dev->change_mtu = qeth_change_mtu;
6370 dev->neigh_setup = qeth_neigh_setup;
6371 dev->set_multicast_list = qeth_set_multicast_list;
6372 #ifdef CONFIG_QETH_VLAN
6373 dev->vlan_rx_register = qeth_vlan_rx_register;
6374 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6375 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6376 #endif
6377 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6378 dev->rebuild_header = NULL;
6379 dev->hard_header = NULL;
6380 dev->header_cache_update = NULL;
6381 dev->hard_header_cache = NULL;
6382 }
6383 #ifdef CONFIG_QETH_IPV6
6384 /*IPv6 address autoconfiguration stuff*/
6385 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6386 card->dev->dev_id = card->info.unique_id & 0xffff;
6387 #endif
6388 if (card->options.fake_ll &&
6389 (qeth_get_netdev_flags(card) & IFF_NOARP))
6390 dev->hard_header = qeth_fake_header;
6391 dev->hard_header_parse = NULL;
6392 dev->set_mac_address = qeth_layer2_set_mac_address;
6393 dev->flags |= qeth_get_netdev_flags(card);
6394 if ((card->options.fake_broadcast) ||
6395 (card->info.broadcast_capable))
6396 dev->flags |= IFF_BROADCAST;
6397 dev->hard_header_len =
6398 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6399 dev->addr_len = OSA_ADDR_LEN;
6400 dev->mtu = card->info.initial_mtu;
6401 if (card->info.type != QETH_CARD_TYPE_OSN)
6402 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6403 SET_MODULE_OWNER(dev);
6404 return 0;
6405 }
6406
6407 static void
6408 qeth_init_func_level(struct qeth_card *card)
6409 {
6410 if (card->ipato.enabled) {
6411 if (card->info.type == QETH_CARD_TYPE_IQD)
6412 card->info.func_level =
6413 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6414 else
6415 card->info.func_level =
6416 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6417 } else {
6418 if (card->info.type == QETH_CARD_TYPE_IQD)
6419 /*FIXME:why do we have same values for dis and ena for osae??? */
6420 card->info.func_level =
6421 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6422 else
6423 card->info.func_level =
6424 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6425 }
6426 }
6427
6428 /**
6429 * hardsetup card, initialize MPC and QDIO stuff
6430 */
6431 static int
6432 qeth_hardsetup_card(struct qeth_card *card)
6433 {
6434 int retries = 3;
6435 int rc;
6436
6437 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6438
6439 retry:
6440 if (retries < 3){
6441 PRINT_WARN("Retrying to do IDX activates.\n");
6442 ccw_device_set_offline(CARD_DDEV(card));
6443 ccw_device_set_offline(CARD_WDEV(card));
6444 ccw_device_set_offline(CARD_RDEV(card));
6445 ccw_device_set_online(CARD_RDEV(card));
6446 ccw_device_set_online(CARD_WDEV(card));
6447 ccw_device_set_online(CARD_DDEV(card));
6448 }
6449 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6450 if (rc == -ERESTARTSYS) {
6451 QETH_DBF_TEXT(setup, 2, "break1");
6452 return rc;
6453 } else if (rc) {
6454 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6455 if (--retries < 0)
6456 goto out;
6457 else
6458 goto retry;
6459 }
6460 if ((rc = qeth_get_unitaddr(card))){
6461 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6462 return rc;
6463 }
6464 qeth_init_tokens(card);
6465 qeth_init_func_level(card);
6466 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6467 if (rc == -ERESTARTSYS) {
6468 QETH_DBF_TEXT(setup, 2, "break2");
6469 return rc;
6470 } else if (rc) {
6471 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6472 if (--retries < 0)
6473 goto out;
6474 else
6475 goto retry;
6476 }
6477 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6478 if (rc == -ERESTARTSYS) {
6479 QETH_DBF_TEXT(setup, 2, "break3");
6480 return rc;
6481 } else if (rc) {
6482 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6483 if (--retries < 0)
6484 goto out;
6485 else
6486 goto retry;
6487 }
6488 if ((rc = qeth_mpc_initialize(card))){
6489 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6490 goto out;
6491 }
6492 /*network device will be recovered*/
6493 if (card->dev) {
6494 card->dev->hard_header = card->orig_hard_header;
6495 if (card->options.fake_ll &&
6496 (qeth_get_netdev_flags(card) & IFF_NOARP))
6497 card->dev->hard_header = qeth_fake_header;
6498 return 0;
6499 }
6500 /* at first set_online allocate netdev */
6501 card->dev = qeth_get_netdevice(card->info.type,
6502 card->info.link_type);
6503 if (!card->dev){
6504 qeth_qdio_clear_card(card, card->info.type !=
6505 QETH_CARD_TYPE_IQD);
6506 rc = -ENODEV;
6507 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6508 goto out;
6509 }
6510 card->dev->priv = card;
6511 card->orig_hard_header = card->dev->hard_header;
6512 card->dev->type = qeth_get_arphdr_type(card->info.type,
6513 card->info.link_type);
6514 card->dev->init = qeth_netdev_init;
6515 return 0;
6516 out:
6517 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6518 return rc;
6519 }
6520
6521 static int
6522 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6523 unsigned long data)
6524 {
6525 struct qeth_ipa_cmd *cmd;
6526
6527 QETH_DBF_TEXT(trace,4,"defadpcb");
6528
6529 cmd = (struct qeth_ipa_cmd *) data;
6530 if (cmd->hdr.return_code == 0){
6531 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6532 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6533 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6534 #ifdef CONFIG_QETH_IPV6
6535 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6536 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6537 #endif
6538 }
6539 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6540 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6541 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6542 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6543 }
6544 return 0;
6545 }
6546
6547 static int
6548 qeth_default_setadapterparms_cb(struct qeth_card *card,
6549 struct qeth_reply *reply,
6550 unsigned long data)
6551 {
6552 struct qeth_ipa_cmd *cmd;
6553
6554 QETH_DBF_TEXT(trace,4,"defadpcb");
6555
6556 cmd = (struct qeth_ipa_cmd *) data;
6557 if (cmd->hdr.return_code == 0)
6558 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6559 return 0;
6560 }
6561
6562
6563
6564 static int
6565 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6566 unsigned long data)
6567 {
6568 struct qeth_ipa_cmd *cmd;
6569
6570 QETH_DBF_TEXT(trace,3,"quyadpcb");
6571
6572 cmd = (struct qeth_ipa_cmd *) data;
6573 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6574 card->info.link_type =
6575 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6576 card->options.adp.supported_funcs =
6577 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6578 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6579 }
6580
6581 static int
6582 qeth_query_setadapterparms(struct qeth_card *card)
6583 {
6584 int rc;
6585 struct qeth_cmd_buffer *iob;
6586
6587 QETH_DBF_TEXT(trace,3,"queryadp");
6588 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6589 sizeof(struct qeth_ipacmd_setadpparms));
6590 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6591 return rc;
6592 }
6593
6594 static int
6595 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6596 struct qeth_reply *reply,
6597 unsigned long data)
6598 {
6599 struct qeth_ipa_cmd *cmd;
6600
6601 QETH_DBF_TEXT(trace,4,"chgmaccb");
6602
6603 cmd = (struct qeth_ipa_cmd *) data;
6604 if (!card->options.layer2 || card->info.guestlan ||
6605 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6606 memcpy(card->dev->dev_addr,
6607 &cmd->data.setadapterparms.data.change_addr.addr,
6608 OSA_ADDR_LEN);
6609 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6610 }
6611 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6612 return 0;
6613 }
6614
6615 static int
6616 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6617 {
6618 int rc;
6619 struct qeth_cmd_buffer *iob;
6620 struct qeth_ipa_cmd *cmd;
6621
6622 QETH_DBF_TEXT(trace,4,"chgmac");
6623
6624 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6625 sizeof(struct qeth_ipacmd_setadpparms));
6626 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6627 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6628 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6629 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6630 card->dev->dev_addr, OSA_ADDR_LEN);
6631 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6632 NULL);
6633 return rc;
6634 }
6635
6636 static int
6637 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6638 {
6639 int rc;
6640 struct qeth_cmd_buffer *iob;
6641 struct qeth_ipa_cmd *cmd;
6642
6643 QETH_DBF_TEXT(trace,4,"adpmode");
6644
6645 iob = qeth_get_adapter_cmd(card, command,
6646 sizeof(struct qeth_ipacmd_setadpparms));
6647 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6648 cmd->data.setadapterparms.data.mode = mode;
6649 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6650 NULL);
6651 return rc;
6652 }
6653
6654 static inline int
6655 qeth_setadapter_hstr(struct qeth_card *card)
6656 {
6657 int rc;
6658
6659 QETH_DBF_TEXT(trace,4,"adphstr");
6660
6661 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6662 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6663 card->options.broadcast_mode);
6664 if (rc)
6665 PRINT_WARN("couldn't set broadcast mode on "
6666 "device %s: x%x\n",
6667 CARD_BUS_ID(card), rc);
6668 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6669 card->options.macaddr_mode);
6670 if (rc)
6671 PRINT_WARN("couldn't set macaddr mode on "
6672 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6673 return rc;
6674 }
6675 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6676 PRINT_WARN("set adapter parameters not available "
6677 "to set broadcast mode, using ALLRINGS "
6678 "on device %s:\n", CARD_BUS_ID(card));
6679 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6680 PRINT_WARN("set adapter parameters not available "
6681 "to set macaddr mode, using NONCANONICAL "
6682 "on device %s:\n", CARD_BUS_ID(card));
6683 return 0;
6684 }
6685
6686 static int
6687 qeth_setadapter_parms(struct qeth_card *card)
6688 {
6689 int rc;
6690
6691 QETH_DBF_TEXT(setup, 2, "setadprm");
6692
6693 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6694 PRINT_WARN("set adapter parameters not supported "
6695 "on device %s.\n",
6696 CARD_BUS_ID(card));
6697 QETH_DBF_TEXT(setup, 2, " notsupp");
6698 return 0;
6699 }
6700 rc = qeth_query_setadapterparms(card);
6701 if (rc) {
6702 PRINT_WARN("couldn't set adapter parameters on device %s: "
6703 "x%x\n", CARD_BUS_ID(card), rc);
6704 return rc;
6705 }
6706 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6707 rc = qeth_setadpparms_change_macaddr(card);
6708 if (rc)
6709 PRINT_WARN("couldn't get MAC address on "
6710 "device %s: x%x\n",
6711 CARD_BUS_ID(card), rc);
6712 }
6713
6714 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6715 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6716 rc = qeth_setadapter_hstr(card);
6717
6718 return rc;
6719 }
6720
6721 static int
6722 qeth_layer2_initialize(struct qeth_card *card)
6723 {
6724 int rc = 0;
6725
6726
6727 QETH_DBF_TEXT(setup, 2, "doL2init");
6728 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6729
6730 rc = qeth_query_setadapterparms(card);
6731 if (rc) {
6732 PRINT_WARN("could not query adapter parameters on device %s: "
6733 "x%x\n", CARD_BUS_ID(card), rc);
6734 }
6735
6736 rc = qeth_setadpparms_change_macaddr(card);
6737 if (rc) {
6738 PRINT_WARN("couldn't get MAC address on "
6739 "device %s: x%x\n",
6740 CARD_BUS_ID(card), rc);
6741 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6742 return rc;
6743 }
6744 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6745
6746 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6747 if (rc)
6748 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6749 return 0;
6750 }
6751
6752
6753 static int
6754 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6755 enum qeth_prot_versions prot)
6756 {
6757 int rc;
6758 struct qeth_cmd_buffer *iob;
6759
6760 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6761 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6762
6763 return rc;
6764 }
6765
6766 static int
6767 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6768 {
6769 int rc;
6770
6771 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6772
6773 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6774 return rc;
6775 }
6776
6777 static int
6778 qeth_send_stoplan(struct qeth_card *card)
6779 {
6780 int rc = 0;
6781
6782 /*
6783 * TODO: according to the IPA format document page 14,
6784 * TCP/IP (we!) never issue a STOPLAN
6785 * is this right ?!?
6786 */
6787 QETH_DBF_TEXT(trace, 2, "stoplan");
6788
6789 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6790 return rc;
6791 }
6792
6793 static int
6794 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6795 unsigned long data)
6796 {
6797 struct qeth_ipa_cmd *cmd;
6798
6799 QETH_DBF_TEXT(setup, 2, "qipasscb");
6800
6801 cmd = (struct qeth_ipa_cmd *) data;
6802 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6803 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6804 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6805 /* Disable IPV6 support hard coded for Hipersockets */
6806 if(card->info.type == QETH_CARD_TYPE_IQD)
6807 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6808 } else {
6809 #ifdef CONFIG_QETH_IPV6
6810 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6811 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6812 #endif
6813 }
6814 QETH_DBF_TEXT(setup, 2, "suppenbl");
6815 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6816 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6817 return 0;
6818 }
6819
6820 static int
6821 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6822 {
6823 int rc;
6824 struct qeth_cmd_buffer *iob;
6825
6826 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6827 if (card->options.layer2) {
6828 QETH_DBF_TEXT(setup, 2, "noprmly2");
6829 return -EPERM;
6830 }
6831
6832 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6833 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6834 return rc;
6835 }
6836
6837 static struct qeth_cmd_buffer *
6838 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6839 __u16 cmd_code, __u16 len,
6840 enum qeth_prot_versions prot)
6841 {
6842 struct qeth_cmd_buffer *iob;
6843 struct qeth_ipa_cmd *cmd;
6844
6845 QETH_DBF_TEXT(trace,4,"getasscm");
6846 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6847
6848 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6849 cmd->data.setassparms.hdr.assist_no = ipa_func;
6850 cmd->data.setassparms.hdr.length = 8 + len;
6851 cmd->data.setassparms.hdr.command_code = cmd_code;
6852 cmd->data.setassparms.hdr.return_code = 0;
6853 cmd->data.setassparms.hdr.seq_no = 0;
6854
6855 return iob;
6856 }
6857
6858 static int
6859 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6860 __u16 len, long data,
6861 int (*reply_cb)
6862 (struct qeth_card *,struct qeth_reply *,unsigned long),
6863 void *reply_param)
6864 {
6865 int rc;
6866 struct qeth_ipa_cmd *cmd;
6867
6868 QETH_DBF_TEXT(trace,4,"sendassp");
6869
6870 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6871 if (len <= sizeof(__u32))
6872 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6873 else /* (len > sizeof(__u32)) */
6874 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6875
6876 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6877 return rc;
6878 }
6879
6880 #ifdef CONFIG_QETH_IPV6
6881 static int
6882 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6883 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6884
6885 {
6886 int rc;
6887 struct qeth_cmd_buffer *iob;
6888
6889 QETH_DBF_TEXT(trace,4,"simassp6");
6890 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6891 0, QETH_PROT_IPV6);
6892 rc = qeth_send_setassparms(card, iob, 0, 0,
6893 qeth_default_setassparms_cb, NULL);
6894 return rc;
6895 }
6896 #endif
6897
6898 static int
6899 qeth_send_simple_setassparms(struct qeth_card *card,
6900 enum qeth_ipa_funcs ipa_func,
6901 __u16 cmd_code, long data)
6902 {
6903 int rc;
6904 int length = 0;
6905 struct qeth_cmd_buffer *iob;
6906
6907 QETH_DBF_TEXT(trace,4,"simassp4");
6908 if (data)
6909 length = sizeof(__u32);
6910 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6911 length, QETH_PROT_IPV4);
6912 rc = qeth_send_setassparms(card, iob, length, data,
6913 qeth_default_setassparms_cb, NULL);
6914 return rc;
6915 }
6916
6917 static inline int
6918 qeth_start_ipa_arp_processing(struct qeth_card *card)
6919 {
6920 int rc;
6921
6922 QETH_DBF_TEXT(trace,3,"ipaarp");
6923
6924 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6925 PRINT_WARN("ARP processing not supported "
6926 "on %s!\n", QETH_CARD_IFNAME(card));
6927 return 0;
6928 }
6929 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6930 IPA_CMD_ASS_START, 0);
6931 if (rc) {
6932 PRINT_WARN("Could not start ARP processing "
6933 "assist on %s: 0x%x\n",
6934 QETH_CARD_IFNAME(card), rc);
6935 }
6936 return rc;
6937 }
6938
6939 static int
6940 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6941 {
6942 int rc;
6943
6944 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6945
6946 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6947 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6948 QETH_CARD_IFNAME(card));
6949 return -EOPNOTSUPP;
6950 }
6951
6952 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6953 IPA_CMD_ASS_START, 0);
6954 if (rc) {
6955 PRINT_WARN("Could not start Hardware IP fragmentation "
6956 "assist on %s: 0x%x\n",
6957 QETH_CARD_IFNAME(card), rc);
6958 } else
6959 PRINT_INFO("Hardware IP fragmentation enabled \n");
6960 return rc;
6961 }
6962
6963 static int
6964 qeth_start_ipa_source_mac(struct qeth_card *card)
6965 {
6966 int rc;
6967
6968 QETH_DBF_TEXT(trace,3,"stsrcmac");
6969
6970 if (!card->options.fake_ll)
6971 return -EOPNOTSUPP;
6972
6973 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6974 PRINT_INFO("Inbound source address not "
6975 "supported on %s\n", QETH_CARD_IFNAME(card));
6976 return -EOPNOTSUPP;
6977 }
6978
6979 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6980 IPA_CMD_ASS_START, 0);
6981 if (rc)
6982 PRINT_WARN("Could not start inbound source "
6983 "assist on %s: 0x%x\n",
6984 QETH_CARD_IFNAME(card), rc);
6985 return rc;
6986 }
6987
6988 static int
6989 qeth_start_ipa_vlan(struct qeth_card *card)
6990 {
6991 int rc = 0;
6992
6993 QETH_DBF_TEXT(trace,3,"strtvlan");
6994
6995 #ifdef CONFIG_QETH_VLAN
6996 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6997 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6998 return -EOPNOTSUPP;
6999 }
7000
7001 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7002 IPA_CMD_ASS_START,0);
7003 if (rc) {
7004 PRINT_WARN("Could not start vlan "
7005 "assist on %s: 0x%x\n",
7006 QETH_CARD_IFNAME(card), rc);
7007 } else {
7008 PRINT_INFO("VLAN enabled \n");
7009 card->dev->features |=
7010 NETIF_F_HW_VLAN_FILTER |
7011 NETIF_F_HW_VLAN_TX |
7012 NETIF_F_HW_VLAN_RX;
7013 }
7014 #endif /* QETH_VLAN */
7015 return rc;
7016 }
7017
7018 static int
7019 qeth_start_ipa_multicast(struct qeth_card *card)
7020 {
7021 int rc;
7022
7023 QETH_DBF_TEXT(trace,3,"stmcast");
7024
7025 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7026 PRINT_WARN("Multicast not supported on %s\n",
7027 QETH_CARD_IFNAME(card));
7028 return -EOPNOTSUPP;
7029 }
7030
7031 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7032 IPA_CMD_ASS_START,0);
7033 if (rc) {
7034 PRINT_WARN("Could not start multicast "
7035 "assist on %s: rc=%i\n",
7036 QETH_CARD_IFNAME(card), rc);
7037 } else {
7038 PRINT_INFO("Multicast enabled\n");
7039 card->dev->flags |= IFF_MULTICAST;
7040 }
7041 return rc;
7042 }
7043
7044 #ifdef CONFIG_QETH_IPV6
7045 static int
7046 qeth_softsetup_ipv6(struct qeth_card *card)
7047 {
7048 int rc;
7049
7050 QETH_DBF_TEXT(trace,3,"softipv6");
7051
7052 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7053 if (rc) {
7054 PRINT_ERR("IPv6 startlan failed on %s\n",
7055 QETH_CARD_IFNAME(card));
7056 return rc;
7057 }
7058 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7059 if (rc) {
7060 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7061 QETH_CARD_IFNAME(card));
7062 return rc;
7063 }
7064 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7065 IPA_CMD_ASS_START, 3);
7066 if (rc) {
7067 PRINT_WARN("IPv6 start assist (version 4) failed "
7068 "on %s: 0x%x\n",
7069 QETH_CARD_IFNAME(card), rc);
7070 return rc;
7071 }
7072 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7073 IPA_CMD_ASS_START);
7074 if (rc) {
7075 PRINT_WARN("IPV6 start assist (version 6) failed "
7076 "on %s: 0x%x\n",
7077 QETH_CARD_IFNAME(card), rc);
7078 return rc;
7079 }
7080 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7081 IPA_CMD_ASS_START);
7082 if (rc) {
7083 PRINT_WARN("Could not enable passthrough "
7084 "on %s: 0x%x\n",
7085 QETH_CARD_IFNAME(card), rc);
7086 return rc;
7087 }
7088 PRINT_INFO("IPV6 enabled \n");
7089 return 0;
7090 }
7091
7092 #endif
7093
7094 static int
7095 qeth_start_ipa_ipv6(struct qeth_card *card)
7096 {
7097 int rc = 0;
7098 #ifdef CONFIG_QETH_IPV6
7099 QETH_DBF_TEXT(trace,3,"strtipv6");
7100
7101 if (!qeth_is_supported(card, IPA_IPV6)) {
7102 PRINT_WARN("IPv6 not supported on %s\n",
7103 QETH_CARD_IFNAME(card));
7104 return 0;
7105 }
7106 rc = qeth_softsetup_ipv6(card);
7107 #endif
7108 return rc ;
7109 }
7110
7111 static int
7112 qeth_start_ipa_broadcast(struct qeth_card *card)
7113 {
7114 int rc;
7115
7116 QETH_DBF_TEXT(trace,3,"stbrdcst");
7117 card->info.broadcast_capable = 0;
7118 if (!qeth_is_supported(card, IPA_FILTERING)) {
7119 PRINT_WARN("Broadcast not supported on %s\n",
7120 QETH_CARD_IFNAME(card));
7121 rc = -EOPNOTSUPP;
7122 goto out;
7123 }
7124 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7125 IPA_CMD_ASS_START, 0);
7126 if (rc) {
7127 PRINT_WARN("Could not enable broadcasting filtering "
7128 "on %s: 0x%x\n",
7129 QETH_CARD_IFNAME(card), rc);
7130 goto out;
7131 }
7132
7133 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7134 IPA_CMD_ASS_CONFIGURE, 1);
7135 if (rc) {
7136 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7137 QETH_CARD_IFNAME(card), rc);
7138 goto out;
7139 }
7140 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7141 PRINT_INFO("Broadcast enabled \n");
7142 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7143 IPA_CMD_ASS_ENABLE, 1);
7144 if (rc) {
7145 PRINT_WARN("Could not set up broadcast echo filtering on "
7146 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7147 goto out;
7148 }
7149 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7150 out:
7151 if (card->info.broadcast_capable)
7152 card->dev->flags |= IFF_BROADCAST;
7153 else
7154 card->dev->flags &= ~IFF_BROADCAST;
7155 return rc;
7156 }
7157
7158 static int
7159 qeth_send_checksum_command(struct qeth_card *card)
7160 {
7161 int rc;
7162
7163 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7164 IPA_CMD_ASS_START, 0);
7165 if (rc) {
7166 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7167 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7168 QETH_CARD_IFNAME(card), rc);
7169 return rc;
7170 }
7171 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7172 IPA_CMD_ASS_ENABLE,
7173 card->info.csum_mask);
7174 if (rc) {
7175 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7176 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7177 QETH_CARD_IFNAME(card), rc);
7178 return rc;
7179 }
7180 return 0;
7181 }
7182
7183 static int
7184 qeth_start_ipa_checksum(struct qeth_card *card)
7185 {
7186 int rc = 0;
7187
7188 QETH_DBF_TEXT(trace,3,"strtcsum");
7189
7190 if (card->options.checksum_type == NO_CHECKSUMMING) {
7191 PRINT_WARN("Using no checksumming on %s.\n",
7192 QETH_CARD_IFNAME(card));
7193 return 0;
7194 }
7195 if (card->options.checksum_type == SW_CHECKSUMMING) {
7196 PRINT_WARN("Using SW checksumming on %s.\n",
7197 QETH_CARD_IFNAME(card));
7198 return 0;
7199 }
7200 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7201 PRINT_WARN("Inbound HW Checksumming not "
7202 "supported on %s,\ncontinuing "
7203 "using Inbound SW Checksumming\n",
7204 QETH_CARD_IFNAME(card));
7205 card->options.checksum_type = SW_CHECKSUMMING;
7206 return 0;
7207 }
7208 rc = qeth_send_checksum_command(card);
7209 if (!rc) {
7210 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7211 }
7212 return rc;
7213 }
7214
7215 static int
7216 qeth_start_ipa_tso(struct qeth_card *card)
7217 {
7218 int rc;
7219
7220 QETH_DBF_TEXT(trace,3,"sttso");
7221
7222 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7223 PRINT_WARN("Outbound TSO not supported on %s\n",
7224 QETH_CARD_IFNAME(card));
7225 rc = -EOPNOTSUPP;
7226 } else {
7227 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7228 IPA_CMD_ASS_START,0);
7229 if (rc)
7230 PRINT_WARN("Could not start outbound TSO "
7231 "assist on %s: rc=%i\n",
7232 QETH_CARD_IFNAME(card), rc);
7233 else
7234 PRINT_INFO("Outbound TSO enabled\n");
7235 }
7236 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7237 card->options.large_send = QETH_LARGE_SEND_NO;
7238 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7239 }
7240 return rc;
7241 }
7242
7243 static int
7244 qeth_start_ipassists(struct qeth_card *card)
7245 {
7246 QETH_DBF_TEXT(trace,3,"strtipas");
7247 qeth_start_ipa_arp_processing(card); /* go on*/
7248 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7249 qeth_start_ipa_source_mac(card); /* go on*/
7250 qeth_start_ipa_vlan(card); /* go on*/
7251 qeth_start_ipa_multicast(card); /* go on*/
7252 qeth_start_ipa_ipv6(card); /* go on*/
7253 qeth_start_ipa_broadcast(card); /* go on*/
7254 qeth_start_ipa_checksum(card); /* go on*/
7255 qeth_start_ipa_tso(card); /* go on*/
7256 return 0;
7257 }
7258
7259 static int
7260 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7261 enum qeth_prot_versions prot)
7262 {
7263 int rc;
7264 struct qeth_ipa_cmd *cmd;
7265 struct qeth_cmd_buffer *iob;
7266
7267 QETH_DBF_TEXT(trace,4,"setroutg");
7268 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7269 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7270 cmd->data.setrtg.type = (type);
7271 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7272
7273 return rc;
7274
7275 }
7276
7277 static void
7278 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7279 enum qeth_prot_versions prot)
7280 {
7281 if (card->info.type == QETH_CARD_TYPE_IQD) {
7282 switch (*type) {
7283 case NO_ROUTER:
7284 case PRIMARY_CONNECTOR:
7285 case SECONDARY_CONNECTOR:
7286 case MULTICAST_ROUTER:
7287 return;
7288 default:
7289 goto out_inval;
7290 }
7291 } else {
7292 switch (*type) {
7293 case NO_ROUTER:
7294 case PRIMARY_ROUTER:
7295 case SECONDARY_ROUTER:
7296 return;
7297 case MULTICAST_ROUTER:
7298 if (qeth_is_ipafunc_supported(card, prot,
7299 IPA_OSA_MC_ROUTER))
7300 return;
7301 default:
7302 goto out_inval;
7303 }
7304 }
7305 out_inval:
7306 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7307 "Router status set to 'no router'.\n",
7308 ((*type == PRIMARY_ROUTER)? "primary router" :
7309 (*type == SECONDARY_ROUTER)? "secondary router" :
7310 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7311 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7312 (*type == MULTICAST_ROUTER)? "multicast router" :
7313 "unknown"),
7314 card->dev->name);
7315 *type = NO_ROUTER;
7316 }
7317
7318 int
7319 qeth_setrouting_v4(struct qeth_card *card)
7320 {
7321 int rc;
7322
7323 QETH_DBF_TEXT(trace,3,"setrtg4");
7324
7325 qeth_correct_routing_type(card, &card->options.route4.type,
7326 QETH_PROT_IPV4);
7327
7328 rc = qeth_send_setrouting(card, card->options.route4.type,
7329 QETH_PROT_IPV4);
7330 if (rc) {
7331 card->options.route4.type = NO_ROUTER;
7332 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7333 "Type set to 'no router'.\n",
7334 rc, QETH_CARD_IFNAME(card));
7335 }
7336 return rc;
7337 }
7338
7339 int
7340 qeth_setrouting_v6(struct qeth_card *card)
7341 {
7342 int rc = 0;
7343
7344 QETH_DBF_TEXT(trace,3,"setrtg6");
7345 #ifdef CONFIG_QETH_IPV6
7346
7347 if (!qeth_is_supported(card, IPA_IPV6))
7348 return 0;
7349 qeth_correct_routing_type(card, &card->options.route6.type,
7350 QETH_PROT_IPV6);
7351
7352 rc = qeth_send_setrouting(card, card->options.route6.type,
7353 QETH_PROT_IPV6);
7354 if (rc) {
7355 card->options.route6.type = NO_ROUTER;
7356 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7357 "Type set to 'no router'.\n",
7358 rc, QETH_CARD_IFNAME(card));
7359 }
7360 #endif
7361 return rc;
7362 }
7363
7364 int
7365 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7366 {
7367 int rc = 0;
7368
7369 if (card->dev == NULL) {
7370 card->options.large_send = type;
7371 return 0;
7372 }
7373 if (card->state == CARD_STATE_UP)
7374 netif_tx_disable(card->dev);
7375 card->options.large_send = type;
7376 switch (card->options.large_send) {
7377 case QETH_LARGE_SEND_EDDP:
7378 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7379 break;
7380 case QETH_LARGE_SEND_TSO:
7381 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7382 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7383 } else {
7384 PRINT_WARN("TSO not supported on %s. "
7385 "large_send set to 'no'.\n",
7386 card->dev->name);
7387 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7388 card->options.large_send = QETH_LARGE_SEND_NO;
7389 rc = -EOPNOTSUPP;
7390 }
7391 break;
7392 default: /* includes QETH_LARGE_SEND_NO */
7393 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7394 break;
7395 }
7396 if (card->state == CARD_STATE_UP)
7397 netif_wake_queue(card->dev);
7398 return rc;
7399 }
7400
7401 /*
7402 * softsetup card: init IPA stuff
7403 */
7404 static int
7405 qeth_softsetup_card(struct qeth_card *card)
7406 {
7407 int rc;
7408
7409 QETH_DBF_TEXT(setup, 2, "softsetp");
7410
7411 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7412 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7413 if (rc == 0xe080){
7414 PRINT_WARN("LAN on card %s if offline! "
7415 "Continuing softsetup.\n",
7416 CARD_BUS_ID(card));
7417 card->lan_online = 0;
7418 } else
7419 return rc;
7420 } else
7421 card->lan_online = 1;
7422 if (card->info.type==QETH_CARD_TYPE_OSN)
7423 goto out;
7424 qeth_set_large_send(card, card->options.large_send);
7425 if (card->options.layer2) {
7426 card->dev->features |=
7427 NETIF_F_HW_VLAN_FILTER |
7428 NETIF_F_HW_VLAN_TX |
7429 NETIF_F_HW_VLAN_RX;
7430 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7431 card->info.broadcast_capable=1;
7432 if ((rc = qeth_layer2_initialize(card))) {
7433 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7434 return rc;
7435 }
7436 #ifdef CONFIG_QETH_VLAN
7437 qeth_layer2_process_vlans(card, 0);
7438 #endif
7439 goto out;
7440 }
7441 if ((rc = qeth_setadapter_parms(card)))
7442 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7443 if ((rc = qeth_start_ipassists(card)))
7444 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7445 if ((rc = qeth_setrouting_v4(card)))
7446 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7447 if ((rc = qeth_setrouting_v6(card)))
7448 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7449 out:
7450 netif_tx_disable(card->dev);
7451 return 0;
7452 }
7453
7454 #ifdef CONFIG_QETH_IPV6
7455 static int
7456 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7457 unsigned long data)
7458 {
7459 struct qeth_ipa_cmd *cmd;
7460
7461 cmd = (struct qeth_ipa_cmd *) data;
7462 if (cmd->hdr.return_code == 0)
7463 card->info.unique_id = *((__u16 *)
7464 &cmd->data.create_destroy_addr.unique_id[6]);
7465 else {
7466 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7467 UNIQUE_ID_NOT_BY_CARD;
7468 PRINT_WARN("couldn't get a unique id from the card on device "
7469 "%s (result=x%x), using default id. ipv6 "
7470 "autoconfig on other lpars may lead to duplicate "
7471 "ip addresses. please use manually "
7472 "configured ones.\n",
7473 CARD_BUS_ID(card), cmd->hdr.return_code);
7474 }
7475 return 0;
7476 }
7477 #endif
7478
7479 static int
7480 qeth_put_unique_id(struct qeth_card *card)
7481 {
7482
7483 int rc = 0;
7484 #ifdef CONFIG_QETH_IPV6
7485 struct qeth_cmd_buffer *iob;
7486 struct qeth_ipa_cmd *cmd;
7487
7488 QETH_DBF_TEXT(trace,2,"puniqeid");
7489
7490 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7491 UNIQUE_ID_NOT_BY_CARD)
7492 return -1;
7493 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7494 QETH_PROT_IPV6);
7495 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7496 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7497 card->info.unique_id;
7498 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7499 card->dev->dev_addr, OSA_ADDR_LEN);
7500 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7501 #else
7502 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7503 UNIQUE_ID_NOT_BY_CARD;
7504 #endif
7505 return rc;
7506 }
7507
7508 /**
7509 * Clear IP List
7510 */
7511 static void
7512 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7513 {
7514 struct qeth_ipaddr *addr, *tmp;
7515 unsigned long flags;
7516
7517 QETH_DBF_TEXT(trace,4,"clearip");
7518 spin_lock_irqsave(&card->ip_lock, flags);
7519 /* clear todo list */
7520 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7521 list_del(&addr->entry);
7522 kfree(addr);
7523 }
7524
7525 while (!list_empty(&card->ip_list)) {
7526 addr = list_entry(card->ip_list.next,
7527 struct qeth_ipaddr, entry);
7528 list_del_init(&addr->entry);
7529 if (clean) {
7530 spin_unlock_irqrestore(&card->ip_lock, flags);
7531 qeth_deregister_addr_entry(card, addr);
7532 spin_lock_irqsave(&card->ip_lock, flags);
7533 }
7534 if (!recover || addr->is_multicast) {
7535 kfree(addr);
7536 continue;
7537 }
7538 list_add_tail(&addr->entry, card->ip_tbd_list);
7539 }
7540 spin_unlock_irqrestore(&card->ip_lock, flags);
7541 }
7542
7543 static void
7544 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7545 int clear_start_mask)
7546 {
7547 unsigned long flags;
7548
7549 spin_lock_irqsave(&card->thread_mask_lock, flags);
7550 card->thread_allowed_mask = threads;
7551 if (clear_start_mask)
7552 card->thread_start_mask &= threads;
7553 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7554 wake_up(&card->wait_q);
7555 }
7556
7557 static inline int
7558 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7559 {
7560 unsigned long flags;
7561 int rc = 0;
7562
7563 spin_lock_irqsave(&card->thread_mask_lock, flags);
7564 rc = (card->thread_running_mask & threads);
7565 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7566 return rc;
7567 }
7568
7569 static int
7570 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7571 {
7572 return wait_event_interruptible(card->wait_q,
7573 qeth_threads_running(card, threads) == 0);
7574 }
7575
7576 static int
7577 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7578 {
7579 int rc = 0;
7580
7581 QETH_DBF_TEXT(setup ,2,"stopcard");
7582 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7583
7584 qeth_set_allowed_threads(card, 0, 1);
7585 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7586 return -ERESTARTSYS;
7587 if (card->read.state == CH_STATE_UP &&
7588 card->write.state == CH_STATE_UP &&
7589 (card->state == CARD_STATE_UP)) {
7590 if (recovery_mode &&
7591 card->info.type != QETH_CARD_TYPE_OSN) {
7592 qeth_stop(card->dev);
7593 } else {
7594 rtnl_lock();
7595 dev_close(card->dev);
7596 rtnl_unlock();
7597 }
7598 if (!card->use_hard_stop) {
7599 __u8 *mac = &card->dev->dev_addr[0];
7600 rc = qeth_layer2_send_delmac(card, mac);
7601 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7602 if ((rc = qeth_send_stoplan(card)))
7603 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7604 }
7605 card->state = CARD_STATE_SOFTSETUP;
7606 }
7607 if (card->state == CARD_STATE_SOFTSETUP) {
7608 #ifdef CONFIG_QETH_VLAN
7609 if (card->options.layer2)
7610 qeth_layer2_process_vlans(card, 1);
7611 #endif
7612 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7613 qeth_clear_ipacmd_list(card);
7614 card->state = CARD_STATE_HARDSETUP;
7615 }
7616 if (card->state == CARD_STATE_HARDSETUP) {
7617 if ((!card->use_hard_stop) &&
7618 (!card->options.layer2))
7619 if ((rc = qeth_put_unique_id(card)))
7620 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7621 qeth_qdio_clear_card(card, 0);
7622 qeth_clear_qdio_buffers(card);
7623 qeth_clear_working_pool_list(card);
7624 card->state = CARD_STATE_DOWN;
7625 }
7626 if (card->state == CARD_STATE_DOWN) {
7627 qeth_clear_cmd_buffers(&card->read);
7628 qeth_clear_cmd_buffers(&card->write);
7629 }
7630 card->use_hard_stop = 0;
7631 return rc;
7632 }
7633
7634
7635 static int
7636 qeth_get_unique_id(struct qeth_card *card)
7637 {
7638 int rc = 0;
7639 #ifdef CONFIG_QETH_IPV6
7640 struct qeth_cmd_buffer *iob;
7641 struct qeth_ipa_cmd *cmd;
7642
7643 QETH_DBF_TEXT(setup, 2, "guniqeid");
7644
7645 if (!qeth_is_supported(card,IPA_IPV6)) {
7646 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7647 UNIQUE_ID_NOT_BY_CARD;
7648 return 0;
7649 }
7650
7651 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7652 QETH_PROT_IPV6);
7653 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7654 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7655 card->info.unique_id;
7656
7657 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7658 #else
7659 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7660 UNIQUE_ID_NOT_BY_CARD;
7661 #endif
7662 return rc;
7663 }
7664 static void
7665 qeth_print_status_with_portname(struct qeth_card *card)
7666 {
7667 char dbf_text[15];
7668 int i;
7669
7670 sprintf(dbf_text, "%s", card->info.portname + 1);
7671 for (i = 0; i < 8; i++)
7672 dbf_text[i] =
7673 (char) _ebcasc[(__u8) dbf_text[i]];
7674 dbf_text[8] = 0;
7675 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7676 "with link type %s (portname: %s)\n",
7677 CARD_RDEV_ID(card),
7678 CARD_WDEV_ID(card),
7679 CARD_DDEV_ID(card),
7680 qeth_get_cardname(card),
7681 (card->info.mcl_level[0]) ? " (level: " : "",
7682 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7683 (card->info.mcl_level[0]) ? ")" : "",
7684 qeth_get_cardname_short(card),
7685 dbf_text);
7686
7687 }
7688
7689 static void
7690 qeth_print_status_no_portname(struct qeth_card *card)
7691 {
7692 if (card->info.portname[0])
7693 printk("qeth: Device %s/%s/%s is a%s "
7694 "card%s%s%s\nwith link type %s "
7695 "(no portname needed by interface).\n",
7696 CARD_RDEV_ID(card),
7697 CARD_WDEV_ID(card),
7698 CARD_DDEV_ID(card),
7699 qeth_get_cardname(card),
7700 (card->info.mcl_level[0]) ? " (level: " : "",
7701 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7702 (card->info.mcl_level[0]) ? ")" : "",
7703 qeth_get_cardname_short(card));
7704 else
7705 printk("qeth: Device %s/%s/%s is a%s "
7706 "card%s%s%s\nwith link type %s.\n",
7707 CARD_RDEV_ID(card),
7708 CARD_WDEV_ID(card),
7709 CARD_DDEV_ID(card),
7710 qeth_get_cardname(card),
7711 (card->info.mcl_level[0]) ? " (level: " : "",
7712 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7713 (card->info.mcl_level[0]) ? ")" : "",
7714 qeth_get_cardname_short(card));
7715 }
7716
7717 static void
7718 qeth_print_status_message(struct qeth_card *card)
7719 {
7720 switch (card->info.type) {
7721 case QETH_CARD_TYPE_OSAE:
7722 /* VM will use a non-zero first character
7723 * to indicate a HiperSockets like reporting
7724 * of the level OSA sets the first character to zero
7725 * */
7726 if (!card->info.mcl_level[0]) {
7727 sprintf(card->info.mcl_level,"%02x%02x",
7728 card->info.mcl_level[2],
7729 card->info.mcl_level[3]);
7730
7731 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7732 break;
7733 }
7734 /* fallthrough */
7735 case QETH_CARD_TYPE_IQD:
7736 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7737 card->info.mcl_level[0]];
7738 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7739 card->info.mcl_level[1]];
7740 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7741 card->info.mcl_level[2]];
7742 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7743 card->info.mcl_level[3]];
7744 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7745 break;
7746 default:
7747 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7748 }
7749 if (card->info.portname_required)
7750 qeth_print_status_with_portname(card);
7751 else
7752 qeth_print_status_no_portname(card);
7753 }
7754
7755 static int
7756 qeth_register_netdev(struct qeth_card *card)
7757 {
7758 QETH_DBF_TEXT(setup, 3, "regnetd");
7759 if (card->dev->reg_state != NETREG_UNINITIALIZED)
7760 return 0;
7761 /* sysfs magic */
7762 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7763 return register_netdev(card->dev);
7764 }
7765
7766 static void
7767 qeth_start_again(struct qeth_card *card, int recovery_mode)
7768 {
7769 QETH_DBF_TEXT(setup ,2, "startag");
7770
7771 if (recovery_mode &&
7772 card->info.type != QETH_CARD_TYPE_OSN) {
7773 qeth_open(card->dev);
7774 } else {
7775 rtnl_lock();
7776 dev_open(card->dev);
7777 rtnl_unlock();
7778 }
7779 /* this also sets saved unicast addresses */
7780 qeth_set_multicast_list(card->dev);
7781 }
7782
7783
7784 /* Layer 2 specific stuff */
7785 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7786 if (card->options.option == value) { \
7787 PRINT_ERR("%s not supported with layer 2 " \
7788 "functionality, ignoring option on read" \
7789 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7790 card->options.option = reset_value; \
7791 }
7792 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7793 if (card->options.option != value) { \
7794 PRINT_ERR("%s not supported with layer 2 " \
7795 "functionality, ignoring option on read" \
7796 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7797 card->options.option = reset_value; \
7798 }
7799
7800
7801 static void qeth_make_parameters_consistent(struct qeth_card *card)
7802 {
7803
7804 if (card->options.layer2 == 0)
7805 return;
7806 if (card->info.type == QETH_CARD_TYPE_OSN)
7807 return;
7808 if (card->info.type == QETH_CARD_TYPE_IQD) {
7809 PRINT_ERR("Device %s does not support layer 2 functionality." \
7810 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7811 card->options.layer2 = 0;
7812 return;
7813 }
7814 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7815 "Routing options are");
7816 #ifdef CONFIG_QETH_IPV6
7817 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7818 "Routing options are");
7819 #endif
7820 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7821 QETH_CHECKSUM_DEFAULT,
7822 "Checksumming options are");
7823 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7824 QETH_TR_BROADCAST_ALLRINGS,
7825 "Broadcast mode options are");
7826 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7827 QETH_TR_MACADDR_NONCANONICAL,
7828 "Canonical MAC addr options are");
7829 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7830 "Broadcast faking options are");
7831 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7832 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7833 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7834 }
7835
7836
7837 static int
7838 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7839 {
7840 struct qeth_card *card = gdev->dev.driver_data;
7841 int rc = 0;
7842 enum qeth_card_states recover_flag;
7843
7844 BUG_ON(!card);
7845 QETH_DBF_TEXT(setup ,2, "setonlin");
7846 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7847
7848 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7849 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7850 PRINT_WARN("set_online of card %s interrupted by user!\n",
7851 CARD_BUS_ID(card));
7852 return -ERESTARTSYS;
7853 }
7854
7855 recover_flag = card->state;
7856 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7857 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7858 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7859 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7860 return -EIO;
7861 }
7862
7863 qeth_make_parameters_consistent(card);
7864
7865 if ((rc = qeth_hardsetup_card(card))){
7866 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7867 goto out_remove;
7868 }
7869 card->state = CARD_STATE_HARDSETUP;
7870
7871 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7872 rc = qeth_get_unique_id(card);
7873
7874 if (rc && card->options.layer2 == 0) {
7875 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7876 goto out_remove;
7877 }
7878 qeth_print_status_message(card);
7879 if ((rc = qeth_register_netdev(card))){
7880 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7881 goto out_remove;
7882 }
7883 if ((rc = qeth_softsetup_card(card))){
7884 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7885 goto out_remove;
7886 }
7887
7888 if ((rc = qeth_init_qdio_queues(card))){
7889 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7890 goto out_remove;
7891 }
7892 card->state = CARD_STATE_SOFTSETUP;
7893 netif_carrier_on(card->dev);
7894
7895 qeth_set_allowed_threads(card, 0xffffffff, 0);
7896 if (recover_flag == CARD_STATE_RECOVER)
7897 qeth_start_again(card, recovery_mode);
7898 qeth_notify_processes();
7899 return 0;
7900 out_remove:
7901 card->use_hard_stop = 1;
7902 qeth_stop_card(card, 0);
7903 ccw_device_set_offline(CARD_DDEV(card));
7904 ccw_device_set_offline(CARD_WDEV(card));
7905 ccw_device_set_offline(CARD_RDEV(card));
7906 if (recover_flag == CARD_STATE_RECOVER)
7907 card->state = CARD_STATE_RECOVER;
7908 else
7909 card->state = CARD_STATE_DOWN;
7910 return -ENODEV;
7911 }
7912
7913 static int
7914 qeth_set_online(struct ccwgroup_device *gdev)
7915 {
7916 return __qeth_set_online(gdev, 0);
7917 }
7918
7919 static struct ccw_device_id qeth_ids[] = {
7920 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7921 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7922 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
7923 {},
7924 };
7925 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7926
7927 struct device *qeth_root_dev = NULL;
7928
7929 struct ccwgroup_driver qeth_ccwgroup_driver = {
7930 .owner = THIS_MODULE,
7931 .name = "qeth",
7932 .driver_id = 0xD8C5E3C8,
7933 .probe = qeth_probe_device,
7934 .remove = qeth_remove_device,
7935 .set_online = qeth_set_online,
7936 .set_offline = qeth_set_offline,
7937 };
7938
7939 struct ccw_driver qeth_ccw_driver = {
7940 .name = "qeth",
7941 .ids = qeth_ids,
7942 .probe = ccwgroup_probe_ccwdev,
7943 .remove = ccwgroup_remove_ccwdev,
7944 };
7945
7946
7947 static void
7948 qeth_unregister_dbf_views(void)
7949 {
7950 if (qeth_dbf_setup)
7951 debug_unregister(qeth_dbf_setup);
7952 if (qeth_dbf_qerr)
7953 debug_unregister(qeth_dbf_qerr);
7954 if (qeth_dbf_sense)
7955 debug_unregister(qeth_dbf_sense);
7956 if (qeth_dbf_misc)
7957 debug_unregister(qeth_dbf_misc);
7958 if (qeth_dbf_data)
7959 debug_unregister(qeth_dbf_data);
7960 if (qeth_dbf_control)
7961 debug_unregister(qeth_dbf_control);
7962 if (qeth_dbf_trace)
7963 debug_unregister(qeth_dbf_trace);
7964 }
7965 static int
7966 qeth_register_dbf_views(void)
7967 {
7968 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7969 QETH_DBF_SETUP_PAGES,
7970 QETH_DBF_SETUP_NR_AREAS,
7971 QETH_DBF_SETUP_LEN);
7972 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7973 QETH_DBF_MISC_PAGES,
7974 QETH_DBF_MISC_NR_AREAS,
7975 QETH_DBF_MISC_LEN);
7976 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7977 QETH_DBF_DATA_PAGES,
7978 QETH_DBF_DATA_NR_AREAS,
7979 QETH_DBF_DATA_LEN);
7980 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7981 QETH_DBF_CONTROL_PAGES,
7982 QETH_DBF_CONTROL_NR_AREAS,
7983 QETH_DBF_CONTROL_LEN);
7984 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7985 QETH_DBF_SENSE_PAGES,
7986 QETH_DBF_SENSE_NR_AREAS,
7987 QETH_DBF_SENSE_LEN);
7988 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7989 QETH_DBF_QERR_PAGES,
7990 QETH_DBF_QERR_NR_AREAS,
7991 QETH_DBF_QERR_LEN);
7992 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7993 QETH_DBF_TRACE_PAGES,
7994 QETH_DBF_TRACE_NR_AREAS,
7995 QETH_DBF_TRACE_LEN);
7996
7997 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
7998 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
7999 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
8000 (qeth_dbf_trace == NULL)) {
8001 qeth_unregister_dbf_views();
8002 return -ENOMEM;
8003 }
8004 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8005 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8006
8007 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8008 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8009
8010 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8011 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8012
8013 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8014 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8015
8016 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8017 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8018
8019 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8020 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8021
8022 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8023 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8024
8025 return 0;
8026 }
8027
8028 #ifdef CONFIG_QETH_IPV6
8029 extern struct neigh_table arp_tbl;
8030 static struct neigh_ops *arp_direct_ops;
8031 static int (*qeth_old_arp_constructor) (struct neighbour *);
8032
8033 static struct neigh_ops arp_direct_ops_template = {
8034 .family = AF_INET,
8035 .solicit = NULL,
8036 .error_report = NULL,
8037 .output = dev_queue_xmit,
8038 .connected_output = dev_queue_xmit,
8039 .hh_output = dev_queue_xmit,
8040 .queue_xmit = dev_queue_xmit
8041 };
8042
8043 static int
8044 qeth_arp_constructor(struct neighbour *neigh)
8045 {
8046 struct net_device *dev = neigh->dev;
8047 struct in_device *in_dev;
8048 struct neigh_parms *parms;
8049 struct qeth_card *card;
8050
8051 card = qeth_get_card_from_dev(dev);
8052 if (card == NULL)
8053 goto out;
8054 if((card->options.layer2) ||
8055 (card->dev->hard_header == qeth_fake_header))
8056 goto out;
8057
8058 rcu_read_lock();
8059 in_dev = __in_dev_get_rcu(dev);
8060 if (in_dev == NULL) {
8061 rcu_read_unlock();
8062 return -EINVAL;
8063 }
8064
8065 parms = in_dev->arp_parms;
8066 __neigh_parms_put(neigh->parms);
8067 neigh->parms = neigh_parms_clone(parms);
8068 rcu_read_unlock();
8069
8070 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8071 neigh->nud_state = NUD_NOARP;
8072 neigh->ops = arp_direct_ops;
8073 neigh->output = neigh->ops->queue_xmit;
8074 return 0;
8075 out:
8076 return qeth_old_arp_constructor(neigh);
8077 }
8078 #endif /*CONFIG_QETH_IPV6*/
8079
8080 /*
8081 * IP address takeover related functions
8082 */
8083 static void
8084 qeth_clear_ipato_list(struct qeth_card *card)
8085 {
8086 struct qeth_ipato_entry *ipatoe, *tmp;
8087 unsigned long flags;
8088
8089 spin_lock_irqsave(&card->ip_lock, flags);
8090 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8091 list_del(&ipatoe->entry);
8092 kfree(ipatoe);
8093 }
8094 spin_unlock_irqrestore(&card->ip_lock, flags);
8095 }
8096
8097 int
8098 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8099 {
8100 struct qeth_ipato_entry *ipatoe;
8101 unsigned long flags;
8102 int rc = 0;
8103
8104 QETH_DBF_TEXT(trace, 2, "addipato");
8105 spin_lock_irqsave(&card->ip_lock, flags);
8106 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8107 if (ipatoe->proto != new->proto)
8108 continue;
8109 if (!memcmp(ipatoe->addr, new->addr,
8110 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8111 (ipatoe->mask_bits == new->mask_bits)){
8112 PRINT_WARN("ipato entry already exists!\n");
8113 rc = -EEXIST;
8114 break;
8115 }
8116 }
8117 if (!rc) {
8118 list_add_tail(&new->entry, &card->ipato.entries);
8119 }
8120 spin_unlock_irqrestore(&card->ip_lock, flags);
8121 return rc;
8122 }
8123
8124 void
8125 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8126 u8 *addr, int mask_bits)
8127 {
8128 struct qeth_ipato_entry *ipatoe, *tmp;
8129 unsigned long flags;
8130
8131 QETH_DBF_TEXT(trace, 2, "delipato");
8132 spin_lock_irqsave(&card->ip_lock, flags);
8133 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8134 if (ipatoe->proto != proto)
8135 continue;
8136 if (!memcmp(ipatoe->addr, addr,
8137 (proto == QETH_PROT_IPV4)? 4:16) &&
8138 (ipatoe->mask_bits == mask_bits)){
8139 list_del(&ipatoe->entry);
8140 kfree(ipatoe);
8141 }
8142 }
8143 spin_unlock_irqrestore(&card->ip_lock, flags);
8144 }
8145
8146 static inline void
8147 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8148 {
8149 int i, j;
8150 u8 octet;
8151
8152 for (i = 0; i < len; ++i){
8153 octet = addr[i];
8154 for (j = 7; j >= 0; --j){
8155 bits[i*8 + j] = octet & 1;
8156 octet >>= 1;
8157 }
8158 }
8159 }
8160
8161 static int
8162 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8163 {
8164 struct qeth_ipato_entry *ipatoe;
8165 u8 addr_bits[128] = {0, };
8166 u8 ipatoe_bits[128] = {0, };
8167 int rc = 0;
8168
8169 if (!card->ipato.enabled)
8170 return 0;
8171
8172 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8173 (addr->proto == QETH_PROT_IPV4)? 4:16);
8174 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8175 if (addr->proto != ipatoe->proto)
8176 continue;
8177 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8178 (ipatoe->proto==QETH_PROT_IPV4) ?
8179 4:16);
8180 if (addr->proto == QETH_PROT_IPV4)
8181 rc = !memcmp(addr_bits, ipatoe_bits,
8182 min(32, ipatoe->mask_bits));
8183 else
8184 rc = !memcmp(addr_bits, ipatoe_bits,
8185 min(128, ipatoe->mask_bits));
8186 if (rc)
8187 break;
8188 }
8189 /* invert? */
8190 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8191 rc = !rc;
8192 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8193 rc = !rc;
8194
8195 return rc;
8196 }
8197
8198 /*
8199 * VIPA related functions
8200 */
8201 int
8202 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8203 const u8 *addr)
8204 {
8205 struct qeth_ipaddr *ipaddr;
8206 unsigned long flags;
8207 int rc = 0;
8208
8209 ipaddr = qeth_get_addr_buffer(proto);
8210 if (ipaddr){
8211 if (proto == QETH_PROT_IPV4){
8212 QETH_DBF_TEXT(trace, 2, "addvipa4");
8213 memcpy(&ipaddr->u.a4.addr, addr, 4);
8214 ipaddr->u.a4.mask = 0;
8215 #ifdef CONFIG_QETH_IPV6
8216 } else if (proto == QETH_PROT_IPV6){
8217 QETH_DBF_TEXT(trace, 2, "addvipa6");
8218 memcpy(&ipaddr->u.a6.addr, addr, 16);
8219 ipaddr->u.a6.pfxlen = 0;
8220 #endif
8221 }
8222 ipaddr->type = QETH_IP_TYPE_VIPA;
8223 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8224 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8225 } else
8226 return -ENOMEM;
8227 spin_lock_irqsave(&card->ip_lock, flags);
8228 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8229 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8230 rc = -EEXIST;
8231 spin_unlock_irqrestore(&card->ip_lock, flags);
8232 if (rc){
8233 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8234 return rc;
8235 }
8236 if (!qeth_add_ip(card, ipaddr))
8237 kfree(ipaddr);
8238 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8239 schedule_work(&card->kernel_thread_starter);
8240 return rc;
8241 }
8242
8243 void
8244 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8245 const u8 *addr)
8246 {
8247 struct qeth_ipaddr *ipaddr;
8248
8249 ipaddr = qeth_get_addr_buffer(proto);
8250 if (ipaddr){
8251 if (proto == QETH_PROT_IPV4){
8252 QETH_DBF_TEXT(trace, 2, "delvipa4");
8253 memcpy(&ipaddr->u.a4.addr, addr, 4);
8254 ipaddr->u.a4.mask = 0;
8255 #ifdef CONFIG_QETH_IPV6
8256 } else if (proto == QETH_PROT_IPV6){
8257 QETH_DBF_TEXT(trace, 2, "delvipa6");
8258 memcpy(&ipaddr->u.a6.addr, addr, 16);
8259 ipaddr->u.a6.pfxlen = 0;
8260 #endif
8261 }
8262 ipaddr->type = QETH_IP_TYPE_VIPA;
8263 } else
8264 return;
8265 if (!qeth_delete_ip(card, ipaddr))
8266 kfree(ipaddr);
8267 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8268 schedule_work(&card->kernel_thread_starter);
8269 }
8270
8271 /*
8272 * proxy ARP related functions
8273 */
8274 int
8275 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8276 const u8 *addr)
8277 {
8278 struct qeth_ipaddr *ipaddr;
8279 unsigned long flags;
8280 int rc = 0;
8281
8282 ipaddr = qeth_get_addr_buffer(proto);
8283 if (ipaddr){
8284 if (proto == QETH_PROT_IPV4){
8285 QETH_DBF_TEXT(trace, 2, "addrxip4");
8286 memcpy(&ipaddr->u.a4.addr, addr, 4);
8287 ipaddr->u.a4.mask = 0;
8288 #ifdef CONFIG_QETH_IPV6
8289 } else if (proto == QETH_PROT_IPV6){
8290 QETH_DBF_TEXT(trace, 2, "addrxip6");
8291 memcpy(&ipaddr->u.a6.addr, addr, 16);
8292 ipaddr->u.a6.pfxlen = 0;
8293 #endif
8294 }
8295 ipaddr->type = QETH_IP_TYPE_RXIP;
8296 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8297 ipaddr->del_flags = 0;
8298 } else
8299 return -ENOMEM;
8300 spin_lock_irqsave(&card->ip_lock, flags);
8301 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8302 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8303 rc = -EEXIST;
8304 spin_unlock_irqrestore(&card->ip_lock, flags);
8305 if (rc){
8306 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8307 return rc;
8308 }
8309 if (!qeth_add_ip(card, ipaddr))
8310 kfree(ipaddr);
8311 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8312 schedule_work(&card->kernel_thread_starter);
8313 return 0;
8314 }
8315
8316 void
8317 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8318 const u8 *addr)
8319 {
8320 struct qeth_ipaddr *ipaddr;
8321
8322 ipaddr = qeth_get_addr_buffer(proto);
8323 if (ipaddr){
8324 if (proto == QETH_PROT_IPV4){
8325 QETH_DBF_TEXT(trace, 2, "addrxip4");
8326 memcpy(&ipaddr->u.a4.addr, addr, 4);
8327 ipaddr->u.a4.mask = 0;
8328 #ifdef CONFIG_QETH_IPV6
8329 } else if (proto == QETH_PROT_IPV6){
8330 QETH_DBF_TEXT(trace, 2, "addrxip6");
8331 memcpy(&ipaddr->u.a6.addr, addr, 16);
8332 ipaddr->u.a6.pfxlen = 0;
8333 #endif
8334 }
8335 ipaddr->type = QETH_IP_TYPE_RXIP;
8336 } else
8337 return;
8338 if (!qeth_delete_ip(card, ipaddr))
8339 kfree(ipaddr);
8340 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8341 schedule_work(&card->kernel_thread_starter);
8342 }
8343
8344 /**
8345 * IP event handler
8346 */
8347 static int
8348 qeth_ip_event(struct notifier_block *this,
8349 unsigned long event,void *ptr)
8350 {
8351 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8352 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8353 struct qeth_ipaddr *addr;
8354 struct qeth_card *card;
8355
8356 QETH_DBF_TEXT(trace,3,"ipevent");
8357 card = qeth_get_card_from_dev(dev);
8358 if (!card)
8359 return NOTIFY_DONE;
8360 if (card->options.layer2)
8361 return NOTIFY_DONE;
8362
8363 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8364 if (addr != NULL) {
8365 addr->u.a4.addr = ifa->ifa_address;
8366 addr->u.a4.mask = ifa->ifa_mask;
8367 addr->type = QETH_IP_TYPE_NORMAL;
8368 } else
8369 goto out;
8370
8371 switch(event) {
8372 case NETDEV_UP:
8373 if (!qeth_add_ip(card, addr))
8374 kfree(addr);
8375 break;
8376 case NETDEV_DOWN:
8377 if (!qeth_delete_ip(card, addr))
8378 kfree(addr);
8379 break;
8380 default:
8381 break;
8382 }
8383 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8384 schedule_work(&card->kernel_thread_starter);
8385 out:
8386 return NOTIFY_DONE;
8387 }
8388
8389 static struct notifier_block qeth_ip_notifier = {
8390 qeth_ip_event,
8391 NULL,
8392 };
8393
8394 #ifdef CONFIG_QETH_IPV6
8395 /**
8396 * IPv6 event handler
8397 */
8398 static int
8399 qeth_ip6_event(struct notifier_block *this,
8400 unsigned long event,void *ptr)
8401 {
8402
8403 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8404 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8405 struct qeth_ipaddr *addr;
8406 struct qeth_card *card;
8407
8408 QETH_DBF_TEXT(trace,3,"ip6event");
8409
8410 card = qeth_get_card_from_dev(dev);
8411 if (!card)
8412 return NOTIFY_DONE;
8413 if (!qeth_is_supported(card, IPA_IPV6))
8414 return NOTIFY_DONE;
8415
8416 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8417 if (addr != NULL) {
8418 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8419 addr->u.a6.pfxlen = ifa->prefix_len;
8420 addr->type = QETH_IP_TYPE_NORMAL;
8421 } else
8422 goto out;
8423
8424 switch(event) {
8425 case NETDEV_UP:
8426 if (!qeth_add_ip(card, addr))
8427 kfree(addr);
8428 break;
8429 case NETDEV_DOWN:
8430 if (!qeth_delete_ip(card, addr))
8431 kfree(addr);
8432 break;
8433 default:
8434 break;
8435 }
8436 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8437 schedule_work(&card->kernel_thread_starter);
8438 out:
8439 return NOTIFY_DONE;
8440 }
8441
8442 static struct notifier_block qeth_ip6_notifier = {
8443 qeth_ip6_event,
8444 NULL,
8445 };
8446 #endif
8447
8448 static int
8449 __qeth_reboot_event_card(struct device *dev, void *data)
8450 {
8451 struct qeth_card *card;
8452
8453 card = (struct qeth_card *) dev->driver_data;
8454 qeth_clear_ip_list(card, 0, 0);
8455 qeth_qdio_clear_card(card, 0);
8456 return 0;
8457 }
8458
8459 static int
8460 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8461 {
8462 int ret;
8463
8464 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8465 __qeth_reboot_event_card);
8466 return ret ? NOTIFY_BAD : NOTIFY_DONE;
8467 }
8468
8469
8470 static struct notifier_block qeth_reboot_notifier = {
8471 qeth_reboot_event,
8472 NULL,
8473 };
8474
8475 static int
8476 qeth_register_notifiers(void)
8477 {
8478 int r;
8479
8480 QETH_DBF_TEXT(trace,5,"regnotif");
8481 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8482 return r;
8483 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8484 goto out_reboot;
8485 #ifdef CONFIG_QETH_IPV6
8486 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8487 goto out_ipv4;
8488 #endif
8489 return 0;
8490
8491 #ifdef CONFIG_QETH_IPV6
8492 out_ipv4:
8493 unregister_inetaddr_notifier(&qeth_ip_notifier);
8494 #endif
8495 out_reboot:
8496 unregister_reboot_notifier(&qeth_reboot_notifier);
8497 return r;
8498 }
8499
8500 /**
8501 * unregister all event notifiers
8502 */
8503 static void
8504 qeth_unregister_notifiers(void)
8505 {
8506
8507 QETH_DBF_TEXT(trace,5,"unregnot");
8508 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8509 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8510 #ifdef CONFIG_QETH_IPV6
8511 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8512 #endif /* QETH_IPV6 */
8513
8514 }
8515
8516 #ifdef CONFIG_QETH_IPV6
8517 static int
8518 qeth_ipv6_init(void)
8519 {
8520 qeth_old_arp_constructor = arp_tbl.constructor;
8521 write_lock_bh(&arp_tbl.lock);
8522 arp_tbl.constructor = qeth_arp_constructor;
8523 write_unlock_bh(&arp_tbl.lock);
8524
8525 arp_direct_ops = (struct neigh_ops*)
8526 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8527 if (!arp_direct_ops)
8528 return -ENOMEM;
8529
8530 memcpy(arp_direct_ops, &arp_direct_ops_template,
8531 sizeof(struct neigh_ops));
8532
8533 return 0;
8534 }
8535
8536 static void
8537 qeth_ipv6_uninit(void)
8538 {
8539 write_lock_bh(&arp_tbl.lock);
8540 arp_tbl.constructor = qeth_old_arp_constructor;
8541 write_unlock_bh(&arp_tbl.lock);
8542 kfree(arp_direct_ops);
8543 }
8544 #endif /* CONFIG_QETH_IPV6 */
8545
8546 static void
8547 qeth_sysfs_unregister(void)
8548 {
8549 s390_root_dev_unregister(qeth_root_dev);
8550 qeth_remove_driver_attributes();
8551 ccw_driver_unregister(&qeth_ccw_driver);
8552 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8553 }
8554
8555 /**
8556 * register qeth at sysfs
8557 */
8558 static int
8559 qeth_sysfs_register(void)
8560 {
8561 int rc;
8562
8563 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8564 if (rc)
8565 goto out;
8566
8567 rc = ccw_driver_register(&qeth_ccw_driver);
8568 if (rc)
8569 goto out_ccw_driver;
8570
8571 rc = qeth_create_driver_attributes();
8572 if (rc)
8573 goto out_qeth_attr;
8574
8575 qeth_root_dev = s390_root_dev_register("qeth");
8576 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8577 if (!rc)
8578 goto out;
8579
8580 qeth_remove_driver_attributes();
8581 out_qeth_attr:
8582 ccw_driver_unregister(&qeth_ccw_driver);
8583 out_ccw_driver:
8584 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8585 out:
8586 return rc;
8587 }
8588
8589 /***
8590 * init function
8591 */
8592 static int __init
8593 qeth_init(void)
8594 {
8595 int rc;
8596
8597 PRINT_INFO("loading %s\n", version);
8598
8599 INIT_LIST_HEAD(&qeth_card_list.list);
8600 INIT_LIST_HEAD(&qeth_notify_list);
8601 spin_lock_init(&qeth_notify_lock);
8602 rwlock_init(&qeth_card_list.rwlock);
8603
8604 rc = qeth_register_dbf_views();
8605 if (rc)
8606 goto out_err;
8607
8608 rc = qeth_sysfs_register();
8609 if (rc)
8610 goto out_dbf;
8611
8612 #ifdef CONFIG_QETH_IPV6
8613 rc = qeth_ipv6_init();
8614 if (rc) {
8615 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8616 goto out_sysfs;
8617 }
8618 #endif /* QETH_IPV6 */
8619 rc = qeth_register_notifiers();
8620 if (rc)
8621 goto out_ipv6;
8622 rc = qeth_create_procfs_entries();
8623 if (rc)
8624 goto out_notifiers;
8625
8626 return rc;
8627
8628 out_notifiers:
8629 qeth_unregister_notifiers();
8630 out_ipv6:
8631 #ifdef CONFIG_QETH_IPV6
8632 qeth_ipv6_uninit();
8633 out_sysfs:
8634 #endif /* QETH_IPV6 */
8635 qeth_sysfs_unregister();
8636 out_dbf:
8637 qeth_unregister_dbf_views();
8638 out_err:
8639 PRINT_ERR("Initialization failed with code %d\n", rc);
8640 return rc;
8641 }
8642
8643 static void
8644 __exit qeth_exit(void)
8645 {
8646 struct qeth_card *card, *tmp;
8647 unsigned long flags;
8648
8649 QETH_DBF_TEXT(trace,1, "cleanup.");
8650
8651 /*
8652 * Weed would not need to clean up our devices here, because the
8653 * common device layer calls qeth_remove_device for each device
8654 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8655 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8656 * qeth_remove_device called by the common device layer would otherwise
8657 * do a "hard" shutdown (card->use_hard_stop is set to one in
8658 * qeth_remove_device).
8659 */
8660 again:
8661 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8662 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8663 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8664 qeth_set_offline(card->gdev);
8665 qeth_remove_device(card->gdev);
8666 goto again;
8667 }
8668 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8669 #ifdef CONFIG_QETH_IPV6
8670 qeth_ipv6_uninit();
8671 #endif
8672 qeth_unregister_notifiers();
8673 qeth_remove_procfs_entries();
8674 qeth_sysfs_unregister();
8675 qeth_unregister_dbf_views();
8676 printk("qeth: removed\n");
8677 }
8678
8679 EXPORT_SYMBOL(qeth_osn_register);
8680 EXPORT_SYMBOL(qeth_osn_deregister);
8681 EXPORT_SYMBOL(qeth_osn_assist);
8682 module_init(qeth_init);
8683 module_exit(qeth_exit);
8684 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8685 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8686 "Copyright 2000,2003 IBM Corporation\n");
8687
8688 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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