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[mirror_ubuntu-bionic-kernel.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 qeth_irq_tasklet((unsigned long)channel);
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 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 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 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 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_recover(void *ptr)
955 {
956 struct qeth_card *card;
957 int rc = 0;
958
959 card = (struct qeth_card *) ptr;
960 daemonize("qeth_recover");
961 QETH_DBF_TEXT(trace,2,"recover1");
962 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
963 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
964 return 0;
965 QETH_DBF_TEXT(trace,2,"recover2");
966 PRINT_WARN("Recovery of device %s started ...\n",
967 CARD_BUS_ID(card));
968 card->use_hard_stop = 1;
969 __qeth_set_offline(card->gdev,1);
970 rc = __qeth_set_online(card->gdev,1);
971 if (!rc)
972 PRINT_INFO("Device %s successfully recovered!\n",
973 CARD_BUS_ID(card));
974 else
975 PRINT_INFO("Device %s could not be recovered!\n",
976 CARD_BUS_ID(card));
977 /* don't run another scheduled recovery */
978 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
979 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
980 return 0;
981 }
982
983 void
984 qeth_schedule_recovery(struct qeth_card *card)
985 {
986 QETH_DBF_TEXT(trace,2,"startrec");
987 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
988 schedule_work(&card->kernel_thread_starter);
989 }
990
991 static int
992 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
993 {
994 unsigned long flags;
995 int rc = 0;
996
997 spin_lock_irqsave(&card->thread_mask_lock, flags);
998 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
999 (u8) card->thread_start_mask,
1000 (u8) card->thread_allowed_mask,
1001 (u8) card->thread_running_mask);
1002 rc = (card->thread_start_mask & thread);
1003 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1004 return rc;
1005 }
1006
1007 static void
1008 qeth_start_kernel_thread(struct work_struct *work)
1009 {
1010 struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1011 QETH_DBF_TEXT(trace , 2, "strthrd");
1012
1013 if (card->read.state != CH_STATE_UP &&
1014 card->write.state != CH_STATE_UP)
1015 return;
1016 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1017 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1018 }
1019
1020
1021 static void
1022 qeth_set_intial_options(struct qeth_card *card)
1023 {
1024 card->options.route4.type = NO_ROUTER;
1025 #ifdef CONFIG_QETH_IPV6
1026 card->options.route6.type = NO_ROUTER;
1027 #endif /* QETH_IPV6 */
1028 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1029 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1030 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1031 card->options.fake_broadcast = 0;
1032 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1033 card->options.fake_ll = 0;
1034 if (card->info.type == QETH_CARD_TYPE_OSN)
1035 card->options.layer2 = 1;
1036 else
1037 card->options.layer2 = 0;
1038 card->options.performance_stats = 0;
1039 }
1040
1041 /**
1042 * initialize channels ,card and all state machines
1043 */
1044 static int
1045 qeth_setup_card(struct qeth_card *card)
1046 {
1047
1048 QETH_DBF_TEXT(setup, 2, "setupcrd");
1049 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1050
1051 card->read.state = CH_STATE_DOWN;
1052 card->write.state = CH_STATE_DOWN;
1053 card->data.state = CH_STATE_DOWN;
1054 card->state = CARD_STATE_DOWN;
1055 card->lan_online = 0;
1056 card->use_hard_stop = 0;
1057 card->dev = NULL;
1058 #ifdef CONFIG_QETH_VLAN
1059 spin_lock_init(&card->vlanlock);
1060 card->vlangrp = NULL;
1061 #endif
1062 spin_lock_init(&card->lock);
1063 spin_lock_init(&card->ip_lock);
1064 spin_lock_init(&card->thread_mask_lock);
1065 card->thread_start_mask = 0;
1066 card->thread_allowed_mask = 0;
1067 card->thread_running_mask = 0;
1068 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1069 INIT_LIST_HEAD(&card->ip_list);
1070 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1071 if (!card->ip_tbd_list) {
1072 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1073 return -ENOMEM;
1074 }
1075 INIT_LIST_HEAD(card->ip_tbd_list);
1076 INIT_LIST_HEAD(&card->cmd_waiter_list);
1077 init_waitqueue_head(&card->wait_q);
1078 /* intial options */
1079 qeth_set_intial_options(card);
1080 /* IP address takeover */
1081 INIT_LIST_HEAD(&card->ipato.entries);
1082 card->ipato.enabled = 0;
1083 card->ipato.invert4 = 0;
1084 card->ipato.invert6 = 0;
1085 /* init QDIO stuff */
1086 qeth_init_qdio_info(card);
1087 return 0;
1088 }
1089
1090 static int
1091 is_1920_device (struct qeth_card *card)
1092 {
1093 int single_queue = 0;
1094 struct ccw_device *ccwdev;
1095 struct channelPath_dsc {
1096 u8 flags;
1097 u8 lsn;
1098 u8 desc;
1099 u8 chpid;
1100 u8 swla;
1101 u8 zeroes;
1102 u8 chla;
1103 u8 chpp;
1104 } *chp_dsc;
1105
1106 QETH_DBF_TEXT(setup, 2, "chk_1920");
1107
1108 ccwdev = card->data.ccwdev;
1109 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1110 if (chp_dsc != NULL) {
1111 /* CHPP field bit 6 == 1 -> single queue */
1112 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1113 kfree(chp_dsc);
1114 }
1115 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1116 return single_queue;
1117 }
1118
1119 static int
1120 qeth_determine_card_type(struct qeth_card *card)
1121 {
1122 int i = 0;
1123
1124 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1125
1126 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1127 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1128 while (known_devices[i][4]) {
1129 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1130 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1131 card->info.type = known_devices[i][4];
1132 card->qdio.no_out_queues = known_devices[i][8];
1133 card->info.is_multicast_different = known_devices[i][9];
1134 if (is_1920_device(card)) {
1135 PRINT_INFO("Priority Queueing not able "
1136 "due to hardware limitations!\n");
1137 card->qdio.no_out_queues = 1;
1138 card->qdio.default_out_queue = 0;
1139 }
1140 return 0;
1141 }
1142 i++;
1143 }
1144 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1145 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1146 return -ENOENT;
1147 }
1148
1149 static int
1150 qeth_probe_device(struct ccwgroup_device *gdev)
1151 {
1152 struct qeth_card *card;
1153 struct device *dev;
1154 unsigned long flags;
1155 int rc;
1156
1157 QETH_DBF_TEXT(setup, 2, "probedev");
1158
1159 dev = &gdev->dev;
1160 if (!get_device(dev))
1161 return -ENODEV;
1162
1163 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1164
1165 card = qeth_alloc_card();
1166 if (!card) {
1167 put_device(dev);
1168 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1169 return -ENOMEM;
1170 }
1171 card->read.ccwdev = gdev->cdev[0];
1172 card->write.ccwdev = gdev->cdev[1];
1173 card->data.ccwdev = gdev->cdev[2];
1174 gdev->dev.driver_data = card;
1175 card->gdev = gdev;
1176 gdev->cdev[0]->handler = qeth_irq;
1177 gdev->cdev[1]->handler = qeth_irq;
1178 gdev->cdev[2]->handler = qeth_irq;
1179
1180 if ((rc = qeth_determine_card_type(card))){
1181 PRINT_WARN("%s: not a valid card type\n", __func__);
1182 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1183 put_device(dev);
1184 qeth_free_card(card);
1185 return rc;
1186 }
1187 if ((rc = qeth_setup_card(card))){
1188 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1189 put_device(dev);
1190 qeth_free_card(card);
1191 return rc;
1192 }
1193 rc = qeth_create_device_attributes(dev);
1194 if (rc) {
1195 put_device(dev);
1196 qeth_free_card(card);
1197 return rc;
1198 }
1199 /* insert into our internal list */
1200 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1201 list_add_tail(&card->list, &qeth_card_list.list);
1202 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1203 return rc;
1204 }
1205
1206
1207 static int
1208 qeth_get_unitaddr(struct qeth_card *card)
1209 {
1210 int length;
1211 char *prcd;
1212 int rc;
1213
1214 QETH_DBF_TEXT(setup, 2, "getunit");
1215 rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1216 if (rc) {
1217 PRINT_ERR("read_conf_data for device %s returned %i\n",
1218 CARD_DDEV_ID(card), rc);
1219 return rc;
1220 }
1221 card->info.chpid = prcd[30];
1222 card->info.unit_addr2 = prcd[31];
1223 card->info.cula = prcd[63];
1224 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1225 (prcd[0x11] == _ascebc['M']));
1226 return 0;
1227 }
1228
1229 static void
1230 qeth_init_tokens(struct qeth_card *card)
1231 {
1232 card->token.issuer_rm_w = 0x00010103UL;
1233 card->token.cm_filter_w = 0x00010108UL;
1234 card->token.cm_connection_w = 0x0001010aUL;
1235 card->token.ulp_filter_w = 0x0001010bUL;
1236 card->token.ulp_connection_w = 0x0001010dUL;
1237 }
1238
1239 static inline __u16
1240 raw_devno_from_bus_id(char *id)
1241 {
1242 id += (strlen(id) - 4);
1243 return (__u16) simple_strtoul(id, &id, 16);
1244 }
1245 /**
1246 * setup channel
1247 */
1248 static void
1249 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1250 {
1251 struct qeth_card *card;
1252
1253 QETH_DBF_TEXT(trace, 4, "setupccw");
1254 card = CARD_FROM_CDEV(channel->ccwdev);
1255 if (channel == &card->read)
1256 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1257 else
1258 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1259 channel->ccw.count = len;
1260 channel->ccw.cda = (__u32) __pa(iob);
1261 }
1262
1263 /**
1264 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1265 */
1266 static struct qeth_cmd_buffer *
1267 __qeth_get_buffer(struct qeth_channel *channel)
1268 {
1269 __u8 index;
1270
1271 QETH_DBF_TEXT(trace, 6, "getbuff");
1272 index = channel->io_buf_no;
1273 do {
1274 if (channel->iob[index].state == BUF_STATE_FREE) {
1275 channel->iob[index].state = BUF_STATE_LOCKED;
1276 channel->io_buf_no = (channel->io_buf_no + 1) %
1277 QETH_CMD_BUFFER_NO;
1278 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1279 return channel->iob + index;
1280 }
1281 index = (index + 1) % QETH_CMD_BUFFER_NO;
1282 } while(index != channel->io_buf_no);
1283
1284 return NULL;
1285 }
1286
1287 /**
1288 * release command buffer
1289 */
1290 static void
1291 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1292 {
1293 unsigned long flags;
1294
1295 QETH_DBF_TEXT(trace, 6, "relbuff");
1296 spin_lock_irqsave(&channel->iob_lock, flags);
1297 memset(iob->data, 0, QETH_BUFSIZE);
1298 iob->state = BUF_STATE_FREE;
1299 iob->callback = qeth_send_control_data_cb;
1300 iob->rc = 0;
1301 spin_unlock_irqrestore(&channel->iob_lock, flags);
1302 }
1303
1304 static struct qeth_cmd_buffer *
1305 qeth_get_buffer(struct qeth_channel *channel)
1306 {
1307 struct qeth_cmd_buffer *buffer = NULL;
1308 unsigned long flags;
1309
1310 spin_lock_irqsave(&channel->iob_lock, flags);
1311 buffer = __qeth_get_buffer(channel);
1312 spin_unlock_irqrestore(&channel->iob_lock, flags);
1313 return buffer;
1314 }
1315
1316 static struct qeth_cmd_buffer *
1317 qeth_wait_for_buffer(struct qeth_channel *channel)
1318 {
1319 struct qeth_cmd_buffer *buffer;
1320 wait_event(channel->wait_q,
1321 ((buffer = qeth_get_buffer(channel)) != NULL));
1322 return buffer;
1323 }
1324
1325 static void
1326 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1327 {
1328 int cnt;
1329
1330 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1331 qeth_release_buffer(channel,&channel->iob[cnt]);
1332 channel->buf_no = 0;
1333 channel->io_buf_no = 0;
1334 }
1335
1336 /**
1337 * start IDX for read and write channel
1338 */
1339 static int
1340 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1341 void (*idx_reply_cb)(struct qeth_channel *,
1342 struct qeth_cmd_buffer *))
1343 {
1344 struct qeth_cmd_buffer *iob;
1345 unsigned long flags;
1346 int rc;
1347 struct qeth_card *card;
1348
1349 QETH_DBF_TEXT(setup, 2, "idxanswr");
1350 card = CARD_FROM_CDEV(channel->ccwdev);
1351 iob = qeth_get_buffer(channel);
1352 iob->callback = idx_reply_cb;
1353 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1354 channel->ccw.count = QETH_BUFSIZE;
1355 channel->ccw.cda = (__u32) __pa(iob->data);
1356
1357 wait_event(card->wait_q,
1358 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1359 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1360 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1361 rc = ccw_device_start(channel->ccwdev,
1362 &channel->ccw,(addr_t) iob, 0, 0);
1363 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1364
1365 if (rc) {
1366 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1367 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1368 atomic_set(&channel->irq_pending, 0);
1369 wake_up(&card->wait_q);
1370 return rc;
1371 }
1372 rc = wait_event_interruptible_timeout(card->wait_q,
1373 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1374 if (rc == -ERESTARTSYS)
1375 return rc;
1376 if (channel->state != CH_STATE_UP){
1377 rc = -ETIME;
1378 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1379 qeth_clear_cmd_buffers(channel);
1380 } else
1381 rc = 0;
1382 return rc;
1383 }
1384
1385 static int
1386 qeth_idx_activate_channel(struct qeth_channel *channel,
1387 void (*idx_reply_cb)(struct qeth_channel *,
1388 struct qeth_cmd_buffer *))
1389 {
1390 struct qeth_card *card;
1391 struct qeth_cmd_buffer *iob;
1392 unsigned long flags;
1393 __u16 temp;
1394 int rc;
1395
1396 card = CARD_FROM_CDEV(channel->ccwdev);
1397
1398 QETH_DBF_TEXT(setup, 2, "idxactch");
1399
1400 iob = qeth_get_buffer(channel);
1401 iob->callback = idx_reply_cb;
1402 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1403 channel->ccw.count = IDX_ACTIVATE_SIZE;
1404 channel->ccw.cda = (__u32) __pa(iob->data);
1405 if (channel == &card->write) {
1406 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1407 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1408 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1409 card->seqno.trans_hdr++;
1410 } else {
1411 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1412 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1413 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1414 }
1415 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1416 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1417 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1418 &card->info.func_level,sizeof(__u16));
1419 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1420 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1421 temp = (card->info.cula << 8) + card->info.unit_addr2;
1422 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1423
1424 wait_event(card->wait_q,
1425 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1426 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1427 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1428 rc = ccw_device_start(channel->ccwdev,
1429 &channel->ccw,(addr_t) iob, 0, 0);
1430 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1431
1432 if (rc) {
1433 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1434 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1435 atomic_set(&channel->irq_pending, 0);
1436 wake_up(&card->wait_q);
1437 return rc;
1438 }
1439 rc = wait_event_interruptible_timeout(card->wait_q,
1440 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1441 if (rc == -ERESTARTSYS)
1442 return rc;
1443 if (channel->state != CH_STATE_ACTIVATING) {
1444 PRINT_WARN("qeth: IDX activate timed out!\n");
1445 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1446 qeth_clear_cmd_buffers(channel);
1447 return -ETIME;
1448 }
1449 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1450 }
1451
1452 static int
1453 qeth_peer_func_level(int level)
1454 {
1455 if ((level & 0xff) == 8)
1456 return (level & 0xff) + 0x400;
1457 if (((level >> 8) & 3) == 1)
1458 return (level & 0xff) + 0x200;
1459 return level;
1460 }
1461
1462 static void
1463 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1464 {
1465 struct qeth_card *card;
1466 __u16 temp;
1467
1468 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1469
1470 if (channel->state == CH_STATE_DOWN) {
1471 channel->state = CH_STATE_ACTIVATING;
1472 goto out;
1473 }
1474 card = CARD_FROM_CDEV(channel->ccwdev);
1475
1476 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1477 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1478 "reply\n", CARD_WDEV_ID(card));
1479 goto out;
1480 }
1481 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1482 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1483 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1484 "function level mismatch "
1485 "(sent: 0x%x, received: 0x%x)\n",
1486 CARD_WDEV_ID(card), card->info.func_level, temp);
1487 goto out;
1488 }
1489 channel->state = CH_STATE_UP;
1490 out:
1491 qeth_release_buffer(channel, iob);
1492 }
1493
1494 static int
1495 qeth_check_idx_response(unsigned char *buffer)
1496 {
1497 if (!buffer)
1498 return 0;
1499
1500 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1501 if ((buffer[2] & 0xc0) == 0xc0) {
1502 PRINT_WARN("received an IDX TERMINATE "
1503 "with cause code 0x%02x%s\n",
1504 buffer[4],
1505 ((buffer[4] == 0x22) ?
1506 " -- try another portname" : ""));
1507 QETH_DBF_TEXT(trace, 2, "ckidxres");
1508 QETH_DBF_TEXT(trace, 2, " idxterm");
1509 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1510 return -EIO;
1511 }
1512 return 0;
1513 }
1514
1515 static void
1516 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1517 {
1518 struct qeth_card *card;
1519 __u16 temp;
1520
1521 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1522 if (channel->state == CH_STATE_DOWN) {
1523 channel->state = CH_STATE_ACTIVATING;
1524 goto out;
1525 }
1526
1527 card = CARD_FROM_CDEV(channel->ccwdev);
1528 if (qeth_check_idx_response(iob->data)) {
1529 goto out;
1530 }
1531 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1532 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1533 "reply\n", CARD_RDEV_ID(card));
1534 goto out;
1535 }
1536
1537 /**
1538 * temporary fix for microcode bug
1539 * to revert it,replace OR by AND
1540 */
1541 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1542 (card->info.type == QETH_CARD_TYPE_OSAE) )
1543 card->info.portname_required = 1;
1544
1545 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1546 if (temp != qeth_peer_func_level(card->info.func_level)) {
1547 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1548 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1549 CARD_RDEV_ID(card), card->info.func_level, temp);
1550 goto out;
1551 }
1552 memcpy(&card->token.issuer_rm_r,
1553 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1554 QETH_MPC_TOKEN_LENGTH);
1555 memcpy(&card->info.mcl_level[0],
1556 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1557 channel->state = CH_STATE_UP;
1558 out:
1559 qeth_release_buffer(channel,iob);
1560 }
1561
1562 static int
1563 qeth_issue_next_read(struct qeth_card *card)
1564 {
1565 int rc;
1566 struct qeth_cmd_buffer *iob;
1567
1568 QETH_DBF_TEXT(trace,5,"issnxrd");
1569 if (card->read.state != CH_STATE_UP)
1570 return -EIO;
1571 iob = qeth_get_buffer(&card->read);
1572 if (!iob) {
1573 PRINT_WARN("issue_next_read failed: no iob available!\n");
1574 return -ENOMEM;
1575 }
1576 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1577 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1578 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1579 (addr_t) iob, 0, 0);
1580 if (rc) {
1581 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1582 atomic_set(&card->read.irq_pending, 0);
1583 qeth_schedule_recovery(card);
1584 wake_up(&card->wait_q);
1585 }
1586 return rc;
1587 }
1588
1589 static struct qeth_reply *
1590 qeth_alloc_reply(struct qeth_card *card)
1591 {
1592 struct qeth_reply *reply;
1593
1594 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1595 if (reply){
1596 atomic_set(&reply->refcnt, 1);
1597 atomic_set(&reply->received, 0);
1598 reply->card = card;
1599 };
1600 return reply;
1601 }
1602
1603 static void
1604 qeth_get_reply(struct qeth_reply *reply)
1605 {
1606 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1607 atomic_inc(&reply->refcnt);
1608 }
1609
1610 static void
1611 qeth_put_reply(struct qeth_reply *reply)
1612 {
1613 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1614 if (atomic_dec_and_test(&reply->refcnt))
1615 kfree(reply);
1616 }
1617
1618 static struct qeth_ipa_cmd *
1619 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1620 {
1621 struct qeth_ipa_cmd *cmd = NULL;
1622
1623 QETH_DBF_TEXT(trace,5,"chkipad");
1624 if (IS_IPA(iob->data)){
1625 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1626 if (IS_IPA_REPLY(cmd))
1627 return cmd;
1628 else {
1629 switch (cmd->hdr.command) {
1630 case IPA_CMD_STOPLAN:
1631 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1632 "there is a network problem or "
1633 "someone pulled the cable or "
1634 "disabled the port.\n",
1635 QETH_CARD_IFNAME(card),
1636 card->info.chpid);
1637 card->lan_online = 0;
1638 if (card->dev && netif_carrier_ok(card->dev))
1639 netif_carrier_off(card->dev);
1640 return NULL;
1641 case IPA_CMD_STARTLAN:
1642 PRINT_INFO("Link reestablished on %s "
1643 "(CHPID 0x%X). Scheduling "
1644 "IP address reset.\n",
1645 QETH_CARD_IFNAME(card),
1646 card->info.chpid);
1647 netif_carrier_on(card->dev);
1648 qeth_schedule_recovery(card);
1649 return NULL;
1650 case IPA_CMD_MODCCID:
1651 return cmd;
1652 case IPA_CMD_REGISTER_LOCAL_ADDR:
1653 QETH_DBF_TEXT(trace,3, "irla");
1654 break;
1655 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1656 QETH_DBF_TEXT(trace,3, "urla");
1657 break;
1658 default:
1659 PRINT_WARN("Received data is IPA "
1660 "but not a reply!\n");
1661 break;
1662 }
1663 }
1664 }
1665 return cmd;
1666 }
1667
1668 /**
1669 * wake all waiting ipa commands
1670 */
1671 static void
1672 qeth_clear_ipacmd_list(struct qeth_card *card)
1673 {
1674 struct qeth_reply *reply, *r;
1675 unsigned long flags;
1676
1677 QETH_DBF_TEXT(trace, 4, "clipalst");
1678
1679 spin_lock_irqsave(&card->lock, flags);
1680 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1681 qeth_get_reply(reply);
1682 reply->rc = -EIO;
1683 atomic_inc(&reply->received);
1684 list_del_init(&reply->list);
1685 wake_up(&reply->wait_q);
1686 qeth_put_reply(reply);
1687 }
1688 spin_unlock_irqrestore(&card->lock, flags);
1689 }
1690
1691 static void
1692 qeth_send_control_data_cb(struct qeth_channel *channel,
1693 struct qeth_cmd_buffer *iob)
1694 {
1695 struct qeth_card *card;
1696 struct qeth_reply *reply, *r;
1697 struct qeth_ipa_cmd *cmd;
1698 unsigned long flags;
1699 int keep_reply;
1700
1701 QETH_DBF_TEXT(trace,4,"sndctlcb");
1702
1703 card = CARD_FROM_CDEV(channel->ccwdev);
1704 if (qeth_check_idx_response(iob->data)) {
1705 qeth_clear_ipacmd_list(card);
1706 qeth_schedule_recovery(card);
1707 goto out;
1708 }
1709
1710 cmd = qeth_check_ipa_data(card, iob);
1711 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1712 goto out;
1713 /*in case of OSN : check if cmd is set */
1714 if (card->info.type == QETH_CARD_TYPE_OSN &&
1715 cmd &&
1716 cmd->hdr.command != IPA_CMD_STARTLAN &&
1717 card->osn_info.assist_cb != NULL) {
1718 card->osn_info.assist_cb(card->dev, cmd);
1719 goto out;
1720 }
1721
1722 spin_lock_irqsave(&card->lock, flags);
1723 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1724 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1725 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1726 qeth_get_reply(reply);
1727 list_del_init(&reply->list);
1728 spin_unlock_irqrestore(&card->lock, flags);
1729 keep_reply = 0;
1730 if (reply->callback != NULL) {
1731 if (cmd) {
1732 reply->offset = (__u16)((char*)cmd -
1733 (char *)iob->data);
1734 keep_reply = reply->callback(card,
1735 reply,
1736 (unsigned long)cmd);
1737 } else
1738 keep_reply = reply->callback(card,
1739 reply,
1740 (unsigned long)iob);
1741 }
1742 if (cmd)
1743 reply->rc = (u16) cmd->hdr.return_code;
1744 else if (iob->rc)
1745 reply->rc = iob->rc;
1746 if (keep_reply) {
1747 spin_lock_irqsave(&card->lock, flags);
1748 list_add_tail(&reply->list,
1749 &card->cmd_waiter_list);
1750 spin_unlock_irqrestore(&card->lock, flags);
1751 } else {
1752 atomic_inc(&reply->received);
1753 wake_up(&reply->wait_q);
1754 }
1755 qeth_put_reply(reply);
1756 goto out;
1757 }
1758 }
1759 spin_unlock_irqrestore(&card->lock, flags);
1760 out:
1761 memcpy(&card->seqno.pdu_hdr_ack,
1762 QETH_PDU_HEADER_SEQ_NO(iob->data),
1763 QETH_SEQ_NO_LENGTH);
1764 qeth_release_buffer(channel,iob);
1765 }
1766
1767 static void
1768 qeth_prepare_control_data(struct qeth_card *card, int len,
1769 struct qeth_cmd_buffer *iob)
1770 {
1771 qeth_setup_ccw(&card->write,iob->data,len);
1772 iob->callback = qeth_release_buffer;
1773
1774 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1775 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1776 card->seqno.trans_hdr++;
1777 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1778 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1779 card->seqno.pdu_hdr++;
1780 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1781 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1782 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1783 }
1784
1785 static int
1786 qeth_send_control_data(struct qeth_card *card, int len,
1787 struct qeth_cmd_buffer *iob,
1788 int (*reply_cb)
1789 (struct qeth_card *, struct qeth_reply*, unsigned long),
1790 void *reply_param)
1791
1792 {
1793 int rc;
1794 unsigned long flags;
1795 struct qeth_reply *reply = NULL;
1796 unsigned long timeout;
1797
1798 QETH_DBF_TEXT(trace, 2, "sendctl");
1799
1800 reply = qeth_alloc_reply(card);
1801 if (!reply) {
1802 PRINT_WARN("Could no alloc qeth_reply!\n");
1803 return -ENOMEM;
1804 }
1805 reply->callback = reply_cb;
1806 reply->param = reply_param;
1807 if (card->state == CARD_STATE_DOWN)
1808 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1809 else
1810 reply->seqno = card->seqno.ipa++;
1811 init_waitqueue_head(&reply->wait_q);
1812 spin_lock_irqsave(&card->lock, flags);
1813 list_add_tail(&reply->list, &card->cmd_waiter_list);
1814 spin_unlock_irqrestore(&card->lock, flags);
1815 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1816
1817 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1818 qeth_prepare_control_data(card, len, iob);
1819
1820 if (IS_IPA(iob->data))
1821 timeout = jiffies + QETH_IPA_TIMEOUT;
1822 else
1823 timeout = jiffies + QETH_TIMEOUT;
1824
1825 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1826 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1827 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1828 (addr_t) iob, 0, 0);
1829 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1830 if (rc){
1831 PRINT_WARN("qeth_send_control_data: "
1832 "ccw_device_start rc = %i\n", rc);
1833 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1834 spin_lock_irqsave(&card->lock, flags);
1835 list_del_init(&reply->list);
1836 qeth_put_reply(reply);
1837 spin_unlock_irqrestore(&card->lock, flags);
1838 qeth_release_buffer(iob->channel, iob);
1839 atomic_set(&card->write.irq_pending, 0);
1840 wake_up(&card->wait_q);
1841 return rc;
1842 }
1843 while (!atomic_read(&reply->received)) {
1844 if (time_after(jiffies, timeout)) {
1845 spin_lock_irqsave(&reply->card->lock, flags);
1846 list_del_init(&reply->list);
1847 spin_unlock_irqrestore(&reply->card->lock, flags);
1848 reply->rc = -ETIME;
1849 atomic_inc(&reply->received);
1850 wake_up(&reply->wait_q);
1851 }
1852 };
1853 rc = reply->rc;
1854 qeth_put_reply(reply);
1855 return rc;
1856 }
1857
1858 static int
1859 qeth_osn_send_control_data(struct qeth_card *card, int len,
1860 struct qeth_cmd_buffer *iob)
1861 {
1862 unsigned long flags;
1863 int rc = 0;
1864
1865 QETH_DBF_TEXT(trace, 5, "osndctrd");
1866
1867 wait_event(card->wait_q,
1868 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1869 qeth_prepare_control_data(card, len, iob);
1870 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1871 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1872 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1873 (addr_t) iob, 0, 0);
1874 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1875 if (rc){
1876 PRINT_WARN("qeth_osn_send_control_data: "
1877 "ccw_device_start rc = %i\n", rc);
1878 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1879 qeth_release_buffer(iob->channel, iob);
1880 atomic_set(&card->write.irq_pending, 0);
1881 wake_up(&card->wait_q);
1882 }
1883 return rc;
1884 }
1885
1886 static inline void
1887 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1888 char prot_type)
1889 {
1890 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1891 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1892 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1893 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1894 }
1895
1896 static int
1897 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1898 int data_len)
1899 {
1900 u16 s1, s2;
1901
1902 QETH_DBF_TEXT(trace,4,"osndipa");
1903
1904 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1905 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1906 s2 = (u16)data_len;
1907 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1908 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1909 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1910 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1911 return qeth_osn_send_control_data(card, s1, iob);
1912 }
1913
1914 static int
1915 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1916 int (*reply_cb)
1917 (struct qeth_card *,struct qeth_reply*, unsigned long),
1918 void *reply_param)
1919 {
1920 int rc;
1921 char prot_type;
1922
1923 QETH_DBF_TEXT(trace,4,"sendipa");
1924
1925 if (card->options.layer2)
1926 if (card->info.type == QETH_CARD_TYPE_OSN)
1927 prot_type = QETH_PROT_OSN2;
1928 else
1929 prot_type = QETH_PROT_LAYER2;
1930 else
1931 prot_type = QETH_PROT_TCPIP;
1932 qeth_prepare_ipa_cmd(card,iob,prot_type);
1933 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1934 reply_cb, reply_param);
1935 return rc;
1936 }
1937
1938
1939 static int
1940 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1941 unsigned long data)
1942 {
1943 struct qeth_cmd_buffer *iob;
1944
1945 QETH_DBF_TEXT(setup, 2, "cmenblcb");
1946
1947 iob = (struct qeth_cmd_buffer *) data;
1948 memcpy(&card->token.cm_filter_r,
1949 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1950 QETH_MPC_TOKEN_LENGTH);
1951 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
1952 return 0;
1953 }
1954
1955 static int
1956 qeth_cm_enable(struct qeth_card *card)
1957 {
1958 int rc;
1959 struct qeth_cmd_buffer *iob;
1960
1961 QETH_DBF_TEXT(setup,2,"cmenable");
1962
1963 iob = qeth_wait_for_buffer(&card->write);
1964 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1965 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1966 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1967 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1968 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1969
1970 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1971 qeth_cm_enable_cb, NULL);
1972 return rc;
1973 }
1974
1975 static int
1976 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1977 unsigned long data)
1978 {
1979
1980 struct qeth_cmd_buffer *iob;
1981
1982 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1983
1984 iob = (struct qeth_cmd_buffer *) data;
1985 memcpy(&card->token.cm_connection_r,
1986 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1987 QETH_MPC_TOKEN_LENGTH);
1988 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
1989 return 0;
1990 }
1991
1992 static int
1993 qeth_cm_setup(struct qeth_card *card)
1994 {
1995 int rc;
1996 struct qeth_cmd_buffer *iob;
1997
1998 QETH_DBF_TEXT(setup,2,"cmsetup");
1999
2000 iob = qeth_wait_for_buffer(&card->write);
2001 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2002 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2003 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2004 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2005 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2006 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2007 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2008 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2009 qeth_cm_setup_cb, NULL);
2010 return rc;
2011
2012 }
2013
2014 static int
2015 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2016 unsigned long data)
2017 {
2018
2019 __u16 mtu, framesize;
2020 __u16 len;
2021 __u8 link_type;
2022 struct qeth_cmd_buffer *iob;
2023
2024 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2025
2026 iob = (struct qeth_cmd_buffer *) data;
2027 memcpy(&card->token.ulp_filter_r,
2028 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2029 QETH_MPC_TOKEN_LENGTH);
2030 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2031 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2032 mtu = qeth_get_mtu_outof_framesize(framesize);
2033 if (!mtu) {
2034 iob->rc = -EINVAL;
2035 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2036 return 0;
2037 }
2038 card->info.max_mtu = mtu;
2039 card->info.initial_mtu = mtu;
2040 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2041 } else {
2042 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2043 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2044 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2045 }
2046
2047 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2048 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2049 memcpy(&link_type,
2050 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2051 card->info.link_type = link_type;
2052 } else
2053 card->info.link_type = 0;
2054 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2055 return 0;
2056 }
2057
2058 static int
2059 qeth_ulp_enable(struct qeth_card *card)
2060 {
2061 int rc;
2062 char prot_type;
2063 struct qeth_cmd_buffer *iob;
2064
2065 /*FIXME: trace view callbacks*/
2066 QETH_DBF_TEXT(setup,2,"ulpenabl");
2067
2068 iob = qeth_wait_for_buffer(&card->write);
2069 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2070
2071 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2072 (__u8) card->info.portno;
2073 if (card->options.layer2)
2074 if (card->info.type == QETH_CARD_TYPE_OSN)
2075 prot_type = QETH_PROT_OSN2;
2076 else
2077 prot_type = QETH_PROT_LAYER2;
2078 else
2079 prot_type = QETH_PROT_TCPIP;
2080
2081 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2082 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2083 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2084 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2085 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2086 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2087 card->info.portname, 9);
2088 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2089 qeth_ulp_enable_cb, NULL);
2090 return rc;
2091
2092 }
2093
2094 static inline __u16
2095 __raw_devno_from_bus_id(char *id)
2096 {
2097 id += (strlen(id) - 4);
2098 return (__u16) simple_strtoul(id, &id, 16);
2099 }
2100
2101 static int
2102 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2103 unsigned long data)
2104 {
2105 struct qeth_cmd_buffer *iob;
2106
2107 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2108
2109 iob = (struct qeth_cmd_buffer *) data;
2110 memcpy(&card->token.ulp_connection_r,
2111 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2112 QETH_MPC_TOKEN_LENGTH);
2113 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2114 return 0;
2115 }
2116
2117 static int
2118 qeth_ulp_setup(struct qeth_card *card)
2119 {
2120 int rc;
2121 __u16 temp;
2122 struct qeth_cmd_buffer *iob;
2123
2124 QETH_DBF_TEXT(setup,2,"ulpsetup");
2125
2126 iob = qeth_wait_for_buffer(&card->write);
2127 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2128
2129 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2130 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2131 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2132 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2133 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2134 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2135
2136 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2137 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2138 temp = (card->info.cula << 8) + card->info.unit_addr2;
2139 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2140 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2141 qeth_ulp_setup_cb, NULL);
2142 return rc;
2143 }
2144
2145 static inline int
2146 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2147 unsigned int siga_error, const char *dbftext)
2148 {
2149 if (qdio_error || siga_error) {
2150 QETH_DBF_TEXT(trace, 2, dbftext);
2151 QETH_DBF_TEXT(qerr, 2, dbftext);
2152 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2153 buf->element[15].flags & 0xff);
2154 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2155 buf->element[14].flags & 0xff);
2156 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2157 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2158 return 1;
2159 }
2160 return 0;
2161 }
2162
2163 static struct sk_buff *
2164 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2165 {
2166 struct sk_buff* skb;
2167 int add_len;
2168
2169 add_len = 0;
2170 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2171 add_len = sizeof(struct qeth_hdr);
2172 #ifdef CONFIG_QETH_VLAN
2173 else
2174 add_len = VLAN_HLEN;
2175 #endif
2176 skb = dev_alloc_skb(length + add_len);
2177 if (skb && add_len)
2178 skb_reserve(skb, add_len);
2179 return skb;
2180 }
2181
2182 static struct sk_buff *
2183 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2184 struct qdio_buffer_element **__element, int *__offset,
2185 struct qeth_hdr **hdr)
2186 {
2187 struct qdio_buffer_element *element = *__element;
2188 int offset = *__offset;
2189 struct sk_buff *skb = NULL;
2190 int skb_len;
2191 void *data_ptr;
2192 int data_len;
2193
2194 QETH_DBF_TEXT(trace,6,"nextskb");
2195 /* qeth_hdr must not cross element boundaries */
2196 if (element->length < offset + sizeof(struct qeth_hdr)){
2197 if (qeth_is_last_sbale(element))
2198 return NULL;
2199 element++;
2200 offset = 0;
2201 if (element->length < sizeof(struct qeth_hdr))
2202 return NULL;
2203 }
2204 *hdr = element->addr + offset;
2205
2206 offset += sizeof(struct qeth_hdr);
2207 if (card->options.layer2)
2208 if (card->info.type == QETH_CARD_TYPE_OSN)
2209 skb_len = (*hdr)->hdr.osn.pdu_length;
2210 else
2211 skb_len = (*hdr)->hdr.l2.pkt_length;
2212 else
2213 skb_len = (*hdr)->hdr.l3.length;
2214
2215 if (!skb_len)
2216 return NULL;
2217 if (card->options.fake_ll){
2218 if(card->dev->type == ARPHRD_IEEE802_TR){
2219 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2220 goto no_mem;
2221 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2222 } else {
2223 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2224 goto no_mem;
2225 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2226 }
2227 } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2228 goto no_mem;
2229 data_ptr = element->addr + offset;
2230 while (skb_len) {
2231 data_len = min(skb_len, (int)(element->length - offset));
2232 if (data_len)
2233 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2234 skb_len -= data_len;
2235 if (skb_len){
2236 if (qeth_is_last_sbale(element)){
2237 QETH_DBF_TEXT(trace,4,"unexeob");
2238 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2239 QETH_DBF_TEXT(qerr,2,"unexeob");
2240 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2241 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2242 dev_kfree_skb_any(skb);
2243 card->stats.rx_errors++;
2244 return NULL;
2245 }
2246 element++;
2247 offset = 0;
2248 data_ptr = element->addr;
2249 } else {
2250 offset += data_len;
2251 }
2252 }
2253 *__element = element;
2254 *__offset = offset;
2255 return skb;
2256 no_mem:
2257 if (net_ratelimit()){
2258 PRINT_WARN("No memory for packet received on %s.\n",
2259 QETH_CARD_IFNAME(card));
2260 QETH_DBF_TEXT(trace,2,"noskbmem");
2261 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2262 }
2263 card->stats.rx_dropped++;
2264 return NULL;
2265 }
2266
2267 static __be16
2268 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2269 {
2270 struct qeth_card *card;
2271 struct ethhdr *eth;
2272
2273 QETH_DBF_TEXT(trace,6,"typtrans");
2274
2275 card = (struct qeth_card *)dev->priv;
2276 #ifdef CONFIG_TR
2277 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2278 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2279 return tr_type_trans(skb,dev);
2280 #endif /* CONFIG_TR */
2281 skb_reset_mac_header(skb);
2282 skb_pull(skb, ETH_HLEN );
2283 eth = eth_hdr(skb);
2284
2285 if (*eth->h_dest & 1) {
2286 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2287 skb->pkt_type = PACKET_BROADCAST;
2288 else
2289 skb->pkt_type = PACKET_MULTICAST;
2290 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2291 skb->pkt_type = PACKET_OTHERHOST;
2292
2293 if (ntohs(eth->h_proto) >= 1536)
2294 return eth->h_proto;
2295 if (*(unsigned short *) (skb->data) == 0xFFFF)
2296 return htons(ETH_P_802_3);
2297 return htons(ETH_P_802_2);
2298 }
2299
2300 static void
2301 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2302 struct qeth_hdr *hdr)
2303 {
2304 struct trh_hdr *fake_hdr;
2305 struct trllc *fake_llc;
2306 struct iphdr *ip_hdr;
2307
2308 QETH_DBF_TEXT(trace,5,"skbfktr");
2309 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_TR);
2310 /* this is a fake ethernet header */
2311 fake_hdr = tr_hdr(skb);
2312
2313 /* the destination MAC address */
2314 switch (skb->pkt_type){
2315 case PACKET_MULTICAST:
2316 switch (skb->protocol){
2317 #ifdef CONFIG_QETH_IPV6
2318 case __constant_htons(ETH_P_IPV6):
2319 ndisc_mc_map((struct in6_addr *)
2320 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2321 fake_hdr->daddr, card->dev, 0);
2322 break;
2323 #endif /* CONFIG_QETH_IPV6 */
2324 case __constant_htons(ETH_P_IP):
2325 ip_hdr = (struct iphdr *)skb->data;
2326 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2327 break;
2328 default:
2329 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2330 }
2331 break;
2332 case PACKET_BROADCAST:
2333 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2334 break;
2335 default:
2336 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2337 }
2338 /* the source MAC address */
2339 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2340 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2341 else
2342 memset(fake_hdr->saddr, 0, TR_ALEN);
2343 fake_hdr->rcf=0;
2344 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2345 fake_llc->dsap = EXTENDED_SAP;
2346 fake_llc->ssap = EXTENDED_SAP;
2347 fake_llc->llc = UI_CMD;
2348 fake_llc->protid[0] = 0;
2349 fake_llc->protid[1] = 0;
2350 fake_llc->protid[2] = 0;
2351 fake_llc->ethertype = ETH_P_IP;
2352 }
2353
2354 static void
2355 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2356 struct qeth_hdr *hdr)
2357 {
2358 struct ethhdr *fake_hdr;
2359 struct iphdr *ip_hdr;
2360
2361 QETH_DBF_TEXT(trace,5,"skbfketh");
2362 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
2363 /* this is a fake ethernet header */
2364 fake_hdr = eth_hdr(skb);
2365
2366 /* the destination MAC address */
2367 switch (skb->pkt_type){
2368 case PACKET_MULTICAST:
2369 switch (skb->protocol){
2370 #ifdef CONFIG_QETH_IPV6
2371 case __constant_htons(ETH_P_IPV6):
2372 ndisc_mc_map((struct in6_addr *)
2373 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2374 fake_hdr->h_dest, card->dev, 0);
2375 break;
2376 #endif /* CONFIG_QETH_IPV6 */
2377 case __constant_htons(ETH_P_IP):
2378 ip_hdr = (struct iphdr *)skb->data;
2379 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2380 break;
2381 default:
2382 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2383 }
2384 break;
2385 case PACKET_BROADCAST:
2386 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2387 break;
2388 default:
2389 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2390 }
2391 /* the source MAC address */
2392 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2393 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2394 else
2395 memset(fake_hdr->h_source, 0, ETH_ALEN);
2396 /* the protocol */
2397 fake_hdr->h_proto = skb->protocol;
2398 }
2399
2400 static inline void
2401 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2402 struct qeth_hdr *hdr)
2403 {
2404 if (card->dev->type == ARPHRD_IEEE802_TR)
2405 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2406 else
2407 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2408 }
2409
2410 static inline void
2411 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2412 struct qeth_hdr *hdr)
2413 {
2414 skb->pkt_type = PACKET_HOST;
2415 skb->protocol = qeth_type_trans(skb, skb->dev);
2416 if (card->options.checksum_type == NO_CHECKSUMMING)
2417 skb->ip_summed = CHECKSUM_UNNECESSARY;
2418 else
2419 skb->ip_summed = CHECKSUM_NONE;
2420 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2421 }
2422
2423 static __u16
2424 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2425 struct qeth_hdr *hdr)
2426 {
2427 unsigned short vlan_id = 0;
2428 #ifdef CONFIG_QETH_IPV6
2429 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2430 skb->pkt_type = PACKET_HOST;
2431 skb->protocol = qeth_type_trans(skb, card->dev);
2432 return 0;
2433 }
2434 #endif /* CONFIG_QETH_IPV6 */
2435 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2436 ETH_P_IP);
2437 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2438 case QETH_CAST_UNICAST:
2439 skb->pkt_type = PACKET_HOST;
2440 break;
2441 case QETH_CAST_MULTICAST:
2442 skb->pkt_type = PACKET_MULTICAST;
2443 card->stats.multicast++;
2444 break;
2445 case QETH_CAST_BROADCAST:
2446 skb->pkt_type = PACKET_BROADCAST;
2447 card->stats.multicast++;
2448 break;
2449 case QETH_CAST_ANYCAST:
2450 case QETH_CAST_NOCAST:
2451 default:
2452 skb->pkt_type = PACKET_HOST;
2453 }
2454
2455 if (hdr->hdr.l3.ext_flags &
2456 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2457 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2458 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2459 }
2460
2461 if (card->options.fake_ll)
2462 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2463 else
2464 skb_reset_mac_header(skb);
2465 skb->ip_summed = card->options.checksum_type;
2466 if (card->options.checksum_type == HW_CHECKSUMMING){
2467 if ( (hdr->hdr.l3.ext_flags &
2468 (QETH_HDR_EXT_CSUM_HDR_REQ |
2469 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2470 (QETH_HDR_EXT_CSUM_HDR_REQ |
2471 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2472 skb->ip_summed = CHECKSUM_UNNECESSARY;
2473 else
2474 skb->ip_summed = SW_CHECKSUMMING;
2475 }
2476 return vlan_id;
2477 }
2478
2479 static void
2480 qeth_process_inbound_buffer(struct qeth_card *card,
2481 struct qeth_qdio_buffer *buf, int index)
2482 {
2483 struct qdio_buffer_element *element;
2484 struct sk_buff *skb;
2485 struct qeth_hdr *hdr;
2486 int offset;
2487 int rxrc;
2488 __u16 vlan_tag = 0;
2489
2490 /* get first element of current buffer */
2491 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2492 offset = 0;
2493 if (card->options.performance_stats)
2494 card->perf_stats.bufs_rec++;
2495 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2496 &offset, &hdr))) {
2497 skb->dev = card->dev;
2498 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2499 qeth_layer2_rebuild_skb(card, skb, hdr);
2500 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2501 vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2502 else { /*in case of OSN*/
2503 skb_push(skb, sizeof(struct qeth_hdr));
2504 memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2505 }
2506 /* is device UP ? */
2507 if (!(card->dev->flags & IFF_UP)){
2508 dev_kfree_skb_any(skb);
2509 continue;
2510 }
2511 if (card->info.type == QETH_CARD_TYPE_OSN)
2512 rxrc = card->osn_info.data_cb(skb);
2513 else
2514 #ifdef CONFIG_QETH_VLAN
2515 if (vlan_tag)
2516 if (card->vlangrp)
2517 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2518 else {
2519 dev_kfree_skb_any(skb);
2520 continue;
2521 }
2522 else
2523 #endif
2524 rxrc = netif_rx(skb);
2525 card->dev->last_rx = jiffies;
2526 card->stats.rx_packets++;
2527 card->stats.rx_bytes += skb->len;
2528 }
2529 }
2530
2531 static struct qeth_buffer_pool_entry *
2532 qeth_get_buffer_pool_entry(struct qeth_card *card)
2533 {
2534 struct qeth_buffer_pool_entry *entry;
2535
2536 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2537 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2538 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2539 struct qeth_buffer_pool_entry, list);
2540 list_del_init(&entry->list);
2541 return entry;
2542 }
2543 return NULL;
2544 }
2545
2546 static void
2547 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2548 {
2549 struct qeth_buffer_pool_entry *pool_entry;
2550 int i;
2551
2552 pool_entry = qeth_get_buffer_pool_entry(card);
2553 /*
2554 * since the buffer is accessed only from the input_tasklet
2555 * there shouldn't be a need to synchronize; also, since we use
2556 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2557 * buffers
2558 */
2559 BUG_ON(!pool_entry);
2560
2561 buf->pool_entry = pool_entry;
2562 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2563 buf->buffer->element[i].length = PAGE_SIZE;
2564 buf->buffer->element[i].addr = pool_entry->elements[i];
2565 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2566 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2567 else
2568 buf->buffer->element[i].flags = 0;
2569 }
2570 buf->state = QETH_QDIO_BUF_EMPTY;
2571 }
2572
2573 static void
2574 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2575 struct qeth_qdio_out_buffer *buf)
2576 {
2577 int i;
2578 struct sk_buff *skb;
2579
2580 /* is PCI flag set on buffer? */
2581 if (buf->buffer->element[0].flags & 0x40)
2582 atomic_dec(&queue->set_pci_flags_count);
2583
2584 while ((skb = skb_dequeue(&buf->skb_list))){
2585 atomic_dec(&skb->users);
2586 dev_kfree_skb_any(skb);
2587 }
2588 qeth_eddp_buf_release_contexts(buf);
2589 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2590 buf->buffer->element[i].length = 0;
2591 buf->buffer->element[i].addr = NULL;
2592 buf->buffer->element[i].flags = 0;
2593 }
2594 buf->next_element_to_fill = 0;
2595 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2596 }
2597
2598 static void
2599 qeth_queue_input_buffer(struct qeth_card *card, int index)
2600 {
2601 struct qeth_qdio_q *queue = card->qdio.in_q;
2602 int count;
2603 int i;
2604 int rc;
2605
2606 QETH_DBF_TEXT(trace,6,"queinbuf");
2607 count = (index < queue->next_buf_to_init)?
2608 card->qdio.in_buf_pool.buf_count -
2609 (queue->next_buf_to_init - index) :
2610 card->qdio.in_buf_pool.buf_count -
2611 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2612 /* only requeue at a certain threshold to avoid SIGAs */
2613 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2614 for (i = queue->next_buf_to_init;
2615 i < queue->next_buf_to_init + count; ++i)
2616 qeth_init_input_buffer(card,
2617 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2618 /*
2619 * according to old code it should be avoided to requeue all
2620 * 128 buffers in order to benefit from PCI avoidance.
2621 * this function keeps at least one buffer (the buffer at
2622 * 'index') un-requeued -> this buffer is the first buffer that
2623 * will be requeued the next time
2624 */
2625 if (card->options.performance_stats) {
2626 card->perf_stats.inbound_do_qdio_cnt++;
2627 card->perf_stats.inbound_do_qdio_start_time =
2628 qeth_get_micros();
2629 }
2630 rc = do_QDIO(CARD_DDEV(card),
2631 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2632 0, queue->next_buf_to_init, count, NULL);
2633 if (card->options.performance_stats)
2634 card->perf_stats.inbound_do_qdio_time +=
2635 qeth_get_micros() -
2636 card->perf_stats.inbound_do_qdio_start_time;
2637 if (rc){
2638 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2639 "return %i (device %s).\n",
2640 rc, CARD_DDEV_ID(card));
2641 QETH_DBF_TEXT(trace,2,"qinberr");
2642 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2643 }
2644 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2645 QDIO_MAX_BUFFERS_PER_Q;
2646 }
2647 }
2648
2649 static inline void
2650 qeth_put_buffer_pool_entry(struct qeth_card *card,
2651 struct qeth_buffer_pool_entry *entry)
2652 {
2653 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2654 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2655 }
2656
2657 static void
2658 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2659 unsigned int qdio_err, unsigned int siga_err,
2660 unsigned int queue, int first_element, int count,
2661 unsigned long card_ptr)
2662 {
2663 struct net_device *net_dev;
2664 struct qeth_card *card;
2665 struct qeth_qdio_buffer *buffer;
2666 int index;
2667 int i;
2668
2669 QETH_DBF_TEXT(trace, 6, "qdinput");
2670 card = (struct qeth_card *) card_ptr;
2671 net_dev = card->dev;
2672 if (card->options.performance_stats) {
2673 card->perf_stats.inbound_cnt++;
2674 card->perf_stats.inbound_start_time = qeth_get_micros();
2675 }
2676 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2677 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2678 QETH_DBF_TEXT(trace, 1,"qdinchk");
2679 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2680 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2681 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2682 qeth_schedule_recovery(card);
2683 return;
2684 }
2685 }
2686 for (i = first_element; i < (first_element + count); ++i) {
2687 index = i % QDIO_MAX_BUFFERS_PER_Q;
2688 buffer = &card->qdio.in_q->bufs[index];
2689 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2690 qeth_check_qdio_errors(buffer->buffer,
2691 qdio_err, siga_err,"qinerr")))
2692 qeth_process_inbound_buffer(card, buffer, index);
2693 /* clear buffer and give back to hardware */
2694 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2695 qeth_queue_input_buffer(card, index);
2696 }
2697 if (card->options.performance_stats)
2698 card->perf_stats.inbound_time += qeth_get_micros() -
2699 card->perf_stats.inbound_start_time;
2700 }
2701
2702 static int
2703 qeth_handle_send_error(struct qeth_card *card,
2704 struct qeth_qdio_out_buffer *buffer,
2705 unsigned int qdio_err, unsigned int siga_err)
2706 {
2707 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2708 int cc = siga_err & 3;
2709
2710 QETH_DBF_TEXT(trace, 6, "hdsnderr");
2711 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2712 switch (cc) {
2713 case 0:
2714 if (qdio_err){
2715 QETH_DBF_TEXT(trace, 1,"lnkfail");
2716 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2717 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2718 (u16)qdio_err, (u8)sbalf15);
2719 return QETH_SEND_ERROR_LINK_FAILURE;
2720 }
2721 return QETH_SEND_ERROR_NONE;
2722 case 2:
2723 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2724 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2725 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2726 return QETH_SEND_ERROR_KICK_IT;
2727 }
2728 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2729 return QETH_SEND_ERROR_RETRY;
2730 return QETH_SEND_ERROR_LINK_FAILURE;
2731 /* look at qdio_error and sbalf 15 */
2732 case 1:
2733 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2734 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2735 return QETH_SEND_ERROR_LINK_FAILURE;
2736 case 3:
2737 default:
2738 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2739 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2740 return QETH_SEND_ERROR_KICK_IT;
2741 }
2742 }
2743
2744 void
2745 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2746 int index, int count)
2747 {
2748 struct qeth_qdio_out_buffer *buf;
2749 int rc;
2750 int i;
2751
2752 QETH_DBF_TEXT(trace, 6, "flushbuf");
2753
2754 for (i = index; i < index + count; ++i) {
2755 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2756 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2757 SBAL_FLAGS_LAST_ENTRY;
2758
2759 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2760 continue;
2761
2762 if (!queue->do_pack){
2763 if ((atomic_read(&queue->used_buffers) >=
2764 (QETH_HIGH_WATERMARK_PACK -
2765 QETH_WATERMARK_PACK_FUZZ)) &&
2766 !atomic_read(&queue->set_pci_flags_count)){
2767 /* it's likely that we'll go to packing
2768 * mode soon */
2769 atomic_inc(&queue->set_pci_flags_count);
2770 buf->buffer->element[0].flags |= 0x40;
2771 }
2772 } else {
2773 if (!atomic_read(&queue->set_pci_flags_count)){
2774 /*
2775 * there's no outstanding PCI any more, so we
2776 * have to request a PCI to be sure the the PCI
2777 * will wake at some time in the future then we
2778 * can flush packed buffers that might still be
2779 * hanging around, which can happen if no
2780 * further send was requested by the stack
2781 */
2782 atomic_inc(&queue->set_pci_flags_count);
2783 buf->buffer->element[0].flags |= 0x40;
2784 }
2785 }
2786 }
2787
2788 queue->card->dev->trans_start = jiffies;
2789 if (queue->card->options.performance_stats) {
2790 queue->card->perf_stats.outbound_do_qdio_cnt++;
2791 queue->card->perf_stats.outbound_do_qdio_start_time =
2792 qeth_get_micros();
2793 }
2794 if (under_int)
2795 rc = do_QDIO(CARD_DDEV(queue->card),
2796 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2797 queue->queue_no, index, count, NULL);
2798 else
2799 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2800 queue->queue_no, index, count, NULL);
2801 if (queue->card->options.performance_stats)
2802 queue->card->perf_stats.outbound_do_qdio_time +=
2803 qeth_get_micros() -
2804 queue->card->perf_stats.outbound_do_qdio_start_time;
2805 if (rc){
2806 QETH_DBF_TEXT(trace, 2, "flushbuf");
2807 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2808 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2809 queue->card->stats.tx_errors += count;
2810 /* this must not happen under normal circumstances. if it
2811 * happens something is really wrong -> recover */
2812 qeth_schedule_recovery(queue->card);
2813 return;
2814 }
2815 atomic_add(count, &queue->used_buffers);
2816 if (queue->card->options.performance_stats)
2817 queue->card->perf_stats.bufs_sent += count;
2818 }
2819
2820 /*
2821 * Switched to packing state if the number of used buffers on a queue
2822 * reaches a certain limit.
2823 */
2824 static void
2825 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2826 {
2827 if (!queue->do_pack) {
2828 if (atomic_read(&queue->used_buffers)
2829 >= QETH_HIGH_WATERMARK_PACK){
2830 /* switch non-PACKING -> PACKING */
2831 QETH_DBF_TEXT(trace, 6, "np->pack");
2832 if (queue->card->options.performance_stats)
2833 queue->card->perf_stats.sc_dp_p++;
2834 queue->do_pack = 1;
2835 }
2836 }
2837 }
2838
2839 /*
2840 * Switches from packing to non-packing mode. If there is a packing
2841 * buffer on the queue this buffer will be prepared to be flushed.
2842 * In that case 1 is returned to inform the caller. If no buffer
2843 * has to be flushed, zero is returned.
2844 */
2845 static int
2846 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2847 {
2848 struct qeth_qdio_out_buffer *buffer;
2849 int flush_count = 0;
2850
2851 if (queue->do_pack) {
2852 if (atomic_read(&queue->used_buffers)
2853 <= QETH_LOW_WATERMARK_PACK) {
2854 /* switch PACKING -> non-PACKING */
2855 QETH_DBF_TEXT(trace, 6, "pack->np");
2856 if (queue->card->options.performance_stats)
2857 queue->card->perf_stats.sc_p_dp++;
2858 queue->do_pack = 0;
2859 /* flush packing buffers */
2860 buffer = &queue->bufs[queue->next_buf_to_fill];
2861 if ((atomic_read(&buffer->state) ==
2862 QETH_QDIO_BUF_EMPTY) &&
2863 (buffer->next_element_to_fill > 0)) {
2864 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2865 flush_count++;
2866 queue->next_buf_to_fill =
2867 (queue->next_buf_to_fill + 1) %
2868 QDIO_MAX_BUFFERS_PER_Q;
2869 }
2870 }
2871 }
2872 return flush_count;
2873 }
2874
2875 /*
2876 * Called to flush a packing buffer if no more pci flags are on the queue.
2877 * Checks if there is a packing buffer and prepares it to be flushed.
2878 * In that case returns 1, otherwise zero.
2879 */
2880 static int
2881 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2882 {
2883 struct qeth_qdio_out_buffer *buffer;
2884
2885 buffer = &queue->bufs[queue->next_buf_to_fill];
2886 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2887 (buffer->next_element_to_fill > 0)){
2888 /* it's a packing buffer */
2889 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2890 queue->next_buf_to_fill =
2891 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2892 return 1;
2893 }
2894 return 0;
2895 }
2896
2897 static void
2898 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2899 {
2900 int index;
2901 int flush_cnt = 0;
2902 int q_was_packing = 0;
2903
2904 /*
2905 * check if weed have to switch to non-packing mode or if
2906 * we have to get a pci flag out on the queue
2907 */
2908 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2909 !atomic_read(&queue->set_pci_flags_count)){
2910 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2911 QETH_OUT_Q_UNLOCKED) {
2912 /*
2913 * If we get in here, there was no action in
2914 * do_send_packet. So, we check if there is a
2915 * packing buffer to be flushed here.
2916 */
2917 netif_stop_queue(queue->card->dev);
2918 index = queue->next_buf_to_fill;
2919 q_was_packing = queue->do_pack;
2920 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2921 if (!flush_cnt &&
2922 !atomic_read(&queue->set_pci_flags_count))
2923 flush_cnt +=
2924 qeth_flush_buffers_on_no_pci(queue);
2925 if (queue->card->options.performance_stats &&
2926 q_was_packing)
2927 queue->card->perf_stats.bufs_sent_pack +=
2928 flush_cnt;
2929 if (flush_cnt)
2930 qeth_flush_buffers(queue, 1, index, flush_cnt);
2931 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2932 }
2933 }
2934 }
2935
2936 static void
2937 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2938 unsigned int qdio_error, unsigned int siga_error,
2939 unsigned int __queue, int first_element, int count,
2940 unsigned long card_ptr)
2941 {
2942 struct qeth_card *card = (struct qeth_card *) card_ptr;
2943 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2944 struct qeth_qdio_out_buffer *buffer;
2945 int i;
2946
2947 QETH_DBF_TEXT(trace, 6, "qdouhdl");
2948 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2949 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2950 QETH_DBF_TEXT(trace, 2, "achkcond");
2951 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
2952 QETH_DBF_TEXT_(trace, 2, "%08x", status);
2953 netif_stop_queue(card->dev);
2954 qeth_schedule_recovery(card);
2955 return;
2956 }
2957 }
2958 if (card->options.performance_stats) {
2959 card->perf_stats.outbound_handler_cnt++;
2960 card->perf_stats.outbound_handler_start_time =
2961 qeth_get_micros();
2962 }
2963 for(i = first_element; i < (first_element + count); ++i){
2964 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2965 /*we only handle the KICK_IT error by doing a recovery */
2966 if (qeth_handle_send_error(card, buffer,
2967 qdio_error, siga_error)
2968 == QETH_SEND_ERROR_KICK_IT){
2969 netif_stop_queue(card->dev);
2970 qeth_schedule_recovery(card);
2971 return;
2972 }
2973 qeth_clear_output_buffer(queue, buffer);
2974 }
2975 atomic_sub(count, &queue->used_buffers);
2976 /* check if we need to do something on this outbound queue */
2977 if (card->info.type != QETH_CARD_TYPE_IQD)
2978 qeth_check_outbound_queue(queue);
2979
2980 netif_wake_queue(queue->card->dev);
2981 if (card->options.performance_stats)
2982 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2983 card->perf_stats.outbound_handler_start_time;
2984 }
2985
2986 static void
2987 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
2988 {
2989
2990 param_field[0] = _ascebc['P'];
2991 param_field[1] = _ascebc['C'];
2992 param_field[2] = _ascebc['I'];
2993 param_field[3] = _ascebc['T'];
2994 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2995 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2996 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2997 }
2998
2999 static void
3000 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3001 {
3002 param_field[16] = _ascebc['B'];
3003 param_field[17] = _ascebc['L'];
3004 param_field[18] = _ascebc['K'];
3005 param_field[19] = _ascebc['T'];
3006 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3007 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3008 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3009 }
3010
3011 static void
3012 qeth_initialize_working_pool_list(struct qeth_card *card)
3013 {
3014 struct qeth_buffer_pool_entry *entry;
3015
3016 QETH_DBF_TEXT(trace,5,"inwrklst");
3017
3018 list_for_each_entry(entry,
3019 &card->qdio.init_pool.entry_list, init_list) {
3020 qeth_put_buffer_pool_entry(card,entry);
3021 }
3022 }
3023
3024 static void
3025 qeth_clear_working_pool_list(struct qeth_card *card)
3026 {
3027 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3028
3029 QETH_DBF_TEXT(trace,5,"clwrklst");
3030 list_for_each_entry_safe(pool_entry, tmp,
3031 &card->qdio.in_buf_pool.entry_list, list){
3032 list_del(&pool_entry->list);
3033 }
3034 }
3035
3036 static void
3037 qeth_free_buffer_pool(struct qeth_card *card)
3038 {
3039 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3040 int i=0;
3041 QETH_DBF_TEXT(trace,5,"freepool");
3042 list_for_each_entry_safe(pool_entry, tmp,
3043 &card->qdio.init_pool.entry_list, init_list){
3044 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3045 free_page((unsigned long)pool_entry->elements[i]);
3046 list_del(&pool_entry->init_list);
3047 kfree(pool_entry);
3048 }
3049 }
3050
3051 static int
3052 qeth_alloc_buffer_pool(struct qeth_card *card)
3053 {
3054 struct qeth_buffer_pool_entry *pool_entry;
3055 void *ptr;
3056 int i, j;
3057
3058 QETH_DBF_TEXT(trace,5,"alocpool");
3059 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3060 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3061 if (!pool_entry){
3062 qeth_free_buffer_pool(card);
3063 return -ENOMEM;
3064 }
3065 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3066 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3067 if (!ptr) {
3068 while (j > 0)
3069 free_page((unsigned long)
3070 pool_entry->elements[--j]);
3071 kfree(pool_entry);
3072 qeth_free_buffer_pool(card);
3073 return -ENOMEM;
3074 }
3075 pool_entry->elements[j] = ptr;
3076 }
3077 list_add(&pool_entry->init_list,
3078 &card->qdio.init_pool.entry_list);
3079 }
3080 return 0;
3081 }
3082
3083 int
3084 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3085 {
3086 QETH_DBF_TEXT(trace, 2, "realcbp");
3087
3088 if ((card->state != CARD_STATE_DOWN) &&
3089 (card->state != CARD_STATE_RECOVER))
3090 return -EPERM;
3091
3092 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3093 qeth_clear_working_pool_list(card);
3094 qeth_free_buffer_pool(card);
3095 card->qdio.in_buf_pool.buf_count = bufcnt;
3096 card->qdio.init_pool.buf_count = bufcnt;
3097 return qeth_alloc_buffer_pool(card);
3098 }
3099
3100 static int
3101 qeth_alloc_qdio_buffers(struct qeth_card *card)
3102 {
3103 int i, j;
3104
3105 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3106
3107 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3108 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3109 return 0;
3110
3111 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3112 GFP_KERNEL|GFP_DMA);
3113 if (!card->qdio.in_q)
3114 goto out_nomem;
3115 QETH_DBF_TEXT(setup, 2, "inq");
3116 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3117 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3118 /* give inbound qeth_qdio_buffers their qdio_buffers */
3119 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3120 card->qdio.in_q->bufs[i].buffer =
3121 &card->qdio.in_q->qdio_bufs[i];
3122 /* inbound buffer pool */
3123 if (qeth_alloc_buffer_pool(card))
3124 goto out_freeinq;
3125 /* outbound */
3126 card->qdio.out_qs =
3127 kmalloc(card->qdio.no_out_queues *
3128 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3129 if (!card->qdio.out_qs)
3130 goto out_freepool;
3131 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3132 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3133 GFP_KERNEL|GFP_DMA);
3134 if (!card->qdio.out_qs[i])
3135 goto out_freeoutq;
3136 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3137 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3138 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3139 card->qdio.out_qs[i]->queue_no = i;
3140 /* give outbound qeth_qdio_buffers their qdio_buffers */
3141 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3142 card->qdio.out_qs[i]->bufs[j].buffer =
3143 &card->qdio.out_qs[i]->qdio_bufs[j];
3144 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3145 skb_list);
3146 lockdep_set_class(
3147 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3148 &qdio_out_skb_queue_key);
3149 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3150 }
3151 }
3152 return 0;
3153
3154 out_freeoutq:
3155 while (i > 0)
3156 kfree(card->qdio.out_qs[--i]);
3157 kfree(card->qdio.out_qs);
3158 out_freepool:
3159 qeth_free_buffer_pool(card);
3160 out_freeinq:
3161 kfree(card->qdio.in_q);
3162 out_nomem:
3163 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3164 return -ENOMEM;
3165 }
3166
3167 static void
3168 qeth_free_qdio_buffers(struct qeth_card *card)
3169 {
3170 int i, j;
3171
3172 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3173 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3174 QETH_QDIO_UNINITIALIZED)
3175 return;
3176 kfree(card->qdio.in_q);
3177 /* inbound buffer pool */
3178 qeth_free_buffer_pool(card);
3179 /* free outbound qdio_qs */
3180 for (i = 0; i < card->qdio.no_out_queues; ++i){
3181 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3182 qeth_clear_output_buffer(card->qdio.out_qs[i],
3183 &card->qdio.out_qs[i]->bufs[j]);
3184 kfree(card->qdio.out_qs[i]);
3185 }
3186 kfree(card->qdio.out_qs);
3187 }
3188
3189 static void
3190 qeth_clear_qdio_buffers(struct qeth_card *card)
3191 {
3192 int i, j;
3193
3194 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3195 /* clear outbound buffers to free skbs */
3196 for (i = 0; i < card->qdio.no_out_queues; ++i)
3197 if (card->qdio.out_qs[i]){
3198 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3199 qeth_clear_output_buffer(card->qdio.out_qs[i],
3200 &card->qdio.out_qs[i]->bufs[j]);
3201 }
3202 }
3203
3204 static void
3205 qeth_init_qdio_info(struct qeth_card *card)
3206 {
3207 QETH_DBF_TEXT(setup, 4, "intqdinf");
3208 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3209 /* inbound */
3210 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3211 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3212 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3213 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3214 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3215 }
3216
3217 static int
3218 qeth_init_qdio_queues(struct qeth_card *card)
3219 {
3220 int i, j;
3221 int rc;
3222
3223 QETH_DBF_TEXT(setup, 2, "initqdqs");
3224
3225 /* inbound queue */
3226 memset(card->qdio.in_q->qdio_bufs, 0,
3227 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3228 qeth_initialize_working_pool_list(card);
3229 /*give only as many buffers to hardware as we have buffer pool entries*/
3230 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3231 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3232 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3233 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3234 card->qdio.in_buf_pool.buf_count - 1, NULL);
3235 if (rc) {
3236 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3237 return rc;
3238 }
3239 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3240 if (rc) {
3241 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3242 return rc;
3243 }
3244 /* outbound queue */
3245 for (i = 0; i < card->qdio.no_out_queues; ++i){
3246 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3247 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3248 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3249 qeth_clear_output_buffer(card->qdio.out_qs[i],
3250 &card->qdio.out_qs[i]->bufs[j]);
3251 }
3252 card->qdio.out_qs[i]->card = card;
3253 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3254 card->qdio.out_qs[i]->do_pack = 0;
3255 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3256 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3257 atomic_set(&card->qdio.out_qs[i]->state,
3258 QETH_OUT_Q_UNLOCKED);
3259 }
3260 return 0;
3261 }
3262
3263 static int
3264 qeth_qdio_establish(struct qeth_card *card)
3265 {
3266 struct qdio_initialize init_data;
3267 char *qib_param_field;
3268 struct qdio_buffer **in_sbal_ptrs;
3269 struct qdio_buffer **out_sbal_ptrs;
3270 int i, j, k;
3271 int rc = 0;
3272
3273 QETH_DBF_TEXT(setup, 2, "qdioest");
3274
3275 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3276 GFP_KERNEL);
3277 if (!qib_param_field)
3278 return -ENOMEM;
3279
3280 qeth_create_qib_param_field(card, qib_param_field);
3281 qeth_create_qib_param_field_blkt(card, qib_param_field);
3282
3283 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3284 GFP_KERNEL);
3285 if (!in_sbal_ptrs) {
3286 kfree(qib_param_field);
3287 return -ENOMEM;
3288 }
3289 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3290 in_sbal_ptrs[i] = (struct qdio_buffer *)
3291 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3292
3293 out_sbal_ptrs =
3294 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3295 sizeof(void *), GFP_KERNEL);
3296 if (!out_sbal_ptrs) {
3297 kfree(in_sbal_ptrs);
3298 kfree(qib_param_field);
3299 return -ENOMEM;
3300 }
3301 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3302 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3303 out_sbal_ptrs[k] = (struct qdio_buffer *)
3304 virt_to_phys(card->qdio.out_qs[i]->
3305 bufs[j].buffer);
3306 }
3307
3308 memset(&init_data, 0, sizeof(struct qdio_initialize));
3309 init_data.cdev = CARD_DDEV(card);
3310 init_data.q_format = qeth_get_qdio_q_format(card);
3311 init_data.qib_param_field_format = 0;
3312 init_data.qib_param_field = qib_param_field;
3313 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3314 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3315 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3316 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3317 init_data.no_input_qs = 1;
3318 init_data.no_output_qs = card->qdio.no_out_queues;
3319 init_data.input_handler = (qdio_handler_t *)
3320 qeth_qdio_input_handler;
3321 init_data.output_handler = (qdio_handler_t *)
3322 qeth_qdio_output_handler;
3323 init_data.int_parm = (unsigned long) card;
3324 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3325 QDIO_OUTBOUND_0COPY_SBALS |
3326 QDIO_USE_OUTBOUND_PCIS;
3327 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3328 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3329
3330 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3331 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3332 if ((rc = qdio_initialize(&init_data)))
3333 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3334
3335 kfree(out_sbal_ptrs);
3336 kfree(in_sbal_ptrs);
3337 kfree(qib_param_field);
3338 return rc;
3339 }
3340
3341 static int
3342 qeth_qdio_activate(struct qeth_card *card)
3343 {
3344 QETH_DBF_TEXT(setup,3,"qdioact");
3345 return qdio_activate(CARD_DDEV(card), 0);
3346 }
3347
3348 static int
3349 qeth_clear_channel(struct qeth_channel *channel)
3350 {
3351 unsigned long flags;
3352 struct qeth_card *card;
3353 int rc;
3354
3355 QETH_DBF_TEXT(trace,3,"clearch");
3356 card = CARD_FROM_CDEV(channel->ccwdev);
3357 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3358 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3359 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3360
3361 if (rc)
3362 return rc;
3363 rc = wait_event_interruptible_timeout(card->wait_q,
3364 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3365 if (rc == -ERESTARTSYS)
3366 return rc;
3367 if (channel->state != CH_STATE_STOPPED)
3368 return -ETIME;
3369 channel->state = CH_STATE_DOWN;
3370 return 0;
3371 }
3372
3373 static int
3374 qeth_halt_channel(struct qeth_channel *channel)
3375 {
3376 unsigned long flags;
3377 struct qeth_card *card;
3378 int rc;
3379
3380 QETH_DBF_TEXT(trace,3,"haltch");
3381 card = CARD_FROM_CDEV(channel->ccwdev);
3382 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3383 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3384 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3385
3386 if (rc)
3387 return rc;
3388 rc = wait_event_interruptible_timeout(card->wait_q,
3389 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3390 if (rc == -ERESTARTSYS)
3391 return rc;
3392 if (channel->state != CH_STATE_HALTED)
3393 return -ETIME;
3394 return 0;
3395 }
3396
3397 static int
3398 qeth_halt_channels(struct qeth_card *card)
3399 {
3400 int rc1 = 0, rc2=0, rc3 = 0;
3401
3402 QETH_DBF_TEXT(trace,3,"haltchs");
3403 rc1 = qeth_halt_channel(&card->read);
3404 rc2 = qeth_halt_channel(&card->write);
3405 rc3 = qeth_halt_channel(&card->data);
3406 if (rc1)
3407 return rc1;
3408 if (rc2)
3409 return rc2;
3410 return rc3;
3411 }
3412 static int
3413 qeth_clear_channels(struct qeth_card *card)
3414 {
3415 int rc1 = 0, rc2=0, rc3 = 0;
3416
3417 QETH_DBF_TEXT(trace,3,"clearchs");
3418 rc1 = qeth_clear_channel(&card->read);
3419 rc2 = qeth_clear_channel(&card->write);
3420 rc3 = qeth_clear_channel(&card->data);
3421 if (rc1)
3422 return rc1;
3423 if (rc2)
3424 return rc2;
3425 return rc3;
3426 }
3427
3428 static int
3429 qeth_clear_halt_card(struct qeth_card *card, int halt)
3430 {
3431 int rc = 0;
3432
3433 QETH_DBF_TEXT(trace,3,"clhacrd");
3434 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3435
3436 if (halt)
3437 rc = qeth_halt_channels(card);
3438 if (rc)
3439 return rc;
3440 return qeth_clear_channels(card);
3441 }
3442
3443 static int
3444 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3445 {
3446 int rc = 0;
3447
3448 QETH_DBF_TEXT(trace,3,"qdioclr");
3449 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3450 QETH_QDIO_CLEANING)) {
3451 case QETH_QDIO_ESTABLISHED:
3452 if ((rc = qdio_cleanup(CARD_DDEV(card),
3453 (card->info.type == QETH_CARD_TYPE_IQD) ?
3454 QDIO_FLAG_CLEANUP_USING_HALT :
3455 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3456 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3457 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3458 break;
3459 case QETH_QDIO_CLEANING:
3460 return rc;
3461 default:
3462 break;
3463 }
3464 if ((rc = qeth_clear_halt_card(card, use_halt)))
3465 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3466 card->state = CARD_STATE_DOWN;
3467 return rc;
3468 }
3469
3470 static int
3471 qeth_dm_act(struct qeth_card *card)
3472 {
3473 int rc;
3474 struct qeth_cmd_buffer *iob;
3475
3476 QETH_DBF_TEXT(setup,2,"dmact");
3477
3478 iob = qeth_wait_for_buffer(&card->write);
3479 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3480
3481 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3482 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3483 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3484 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3485 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3486 return rc;
3487 }
3488
3489 static int
3490 qeth_mpc_initialize(struct qeth_card *card)
3491 {
3492 int rc;
3493
3494 QETH_DBF_TEXT(setup,2,"mpcinit");
3495
3496 if ((rc = qeth_issue_next_read(card))){
3497 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3498 return rc;
3499 }
3500 if ((rc = qeth_cm_enable(card))){
3501 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3502 goto out_qdio;
3503 }
3504 if ((rc = qeth_cm_setup(card))){
3505 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3506 goto out_qdio;
3507 }
3508 if ((rc = qeth_ulp_enable(card))){
3509 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3510 goto out_qdio;
3511 }
3512 if ((rc = qeth_ulp_setup(card))){
3513 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3514 goto out_qdio;
3515 }
3516 if ((rc = qeth_alloc_qdio_buffers(card))){
3517 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3518 goto out_qdio;
3519 }
3520 if ((rc = qeth_qdio_establish(card))){
3521 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3522 qeth_free_qdio_buffers(card);
3523 goto out_qdio;
3524 }
3525 if ((rc = qeth_qdio_activate(card))){
3526 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3527 goto out_qdio;
3528 }
3529 if ((rc = qeth_dm_act(card))){
3530 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3531 goto out_qdio;
3532 }
3533
3534 return 0;
3535 out_qdio:
3536 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3537 return rc;
3538 }
3539
3540 static struct net_device *
3541 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3542 {
3543 struct net_device *dev = NULL;
3544
3545 switch (type) {
3546 case QETH_CARD_TYPE_OSAE:
3547 switch (linktype) {
3548 case QETH_LINK_TYPE_LANE_TR:
3549 case QETH_LINK_TYPE_HSTR:
3550 #ifdef CONFIG_TR
3551 dev = alloc_trdev(0);
3552 #endif /* CONFIG_TR */
3553 break;
3554 default:
3555 dev = alloc_etherdev(0);
3556 }
3557 break;
3558 case QETH_CARD_TYPE_IQD:
3559 dev = alloc_netdev(0, "hsi%d", ether_setup);
3560 break;
3561 case QETH_CARD_TYPE_OSN:
3562 dev = alloc_netdev(0, "osn%d", ether_setup);
3563 break;
3564 default:
3565 dev = alloc_etherdev(0);
3566 }
3567 return dev;
3568 }
3569
3570 /*hard_header fake function; used in case fake_ll is set */
3571 static int
3572 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3573 unsigned short type, void *daddr, void *saddr,
3574 unsigned len)
3575 {
3576 if(dev->type == ARPHRD_IEEE802_TR){
3577 struct trh_hdr *hdr;
3578 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3579 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3580 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3581 return QETH_FAKE_LL_LEN_TR;
3582
3583 } else {
3584 struct ethhdr *hdr;
3585 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3586 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3587 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3588 if (type != ETH_P_802_3)
3589 hdr->h_proto = htons(type);
3590 else
3591 hdr->h_proto = htons(len);
3592 return QETH_FAKE_LL_LEN_ETH;
3593
3594 }
3595 }
3596
3597 static int
3598 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3599
3600 static int
3601 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3602 {
3603 int rc;
3604 struct qeth_card *card;
3605
3606 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3607 card = (struct qeth_card *)dev->priv;
3608 if (skb==NULL) {
3609 card->stats.tx_dropped++;
3610 card->stats.tx_errors++;
3611 /* return OK; otherwise ksoftirqd goes to 100% */
3612 return NETDEV_TX_OK;
3613 }
3614 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3615 card->stats.tx_dropped++;
3616 card->stats.tx_errors++;
3617 card->stats.tx_carrier_errors++;
3618 dev_kfree_skb_any(skb);
3619 /* return OK; otherwise ksoftirqd goes to 100% */
3620 return NETDEV_TX_OK;
3621 }
3622 if (card->options.performance_stats) {
3623 card->perf_stats.outbound_cnt++;
3624 card->perf_stats.outbound_start_time = qeth_get_micros();
3625 }
3626 netif_stop_queue(dev);
3627 if ((rc = qeth_send_packet(card, skb))) {
3628 if (rc == -EBUSY) {
3629 return NETDEV_TX_BUSY;
3630 } else {
3631 card->stats.tx_errors++;
3632 card->stats.tx_dropped++;
3633 dev_kfree_skb_any(skb);
3634 /*set to OK; otherwise ksoftirqd goes to 100% */
3635 rc = NETDEV_TX_OK;
3636 }
3637 }
3638 netif_wake_queue(dev);
3639 if (card->options.performance_stats)
3640 card->perf_stats.outbound_time += qeth_get_micros() -
3641 card->perf_stats.outbound_start_time;
3642 return rc;
3643 }
3644
3645 static int
3646 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3647 {
3648 int rc = 0;
3649 #ifdef CONFIG_QETH_VLAN
3650 struct vlan_group *vg;
3651 int i;
3652
3653 if (!(vg = card->vlangrp))
3654 return rc;
3655
3656 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3657 if (vlan_group_get_device(vg, i) == dev){
3658 rc = QETH_VLAN_CARD;
3659 break;
3660 }
3661 }
3662 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3663 return 0;
3664
3665 #endif
3666 return rc;
3667 }
3668
3669 static int
3670 qeth_verify_dev(struct net_device *dev)
3671 {
3672 struct qeth_card *card;
3673 unsigned long flags;
3674 int rc = 0;
3675
3676 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3677 list_for_each_entry(card, &qeth_card_list.list, list){
3678 if (card->dev == dev){
3679 rc = QETH_REAL_CARD;
3680 break;
3681 }
3682 rc = qeth_verify_vlan_dev(dev, card);
3683 if (rc)
3684 break;
3685 }
3686 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3687
3688 return rc;
3689 }
3690
3691 static struct qeth_card *
3692 qeth_get_card_from_dev(struct net_device *dev)
3693 {
3694 struct qeth_card *card = NULL;
3695 int rc;
3696
3697 rc = qeth_verify_dev(dev);
3698 if (rc == QETH_REAL_CARD)
3699 card = (struct qeth_card *)dev->priv;
3700 else if (rc == QETH_VLAN_CARD)
3701 card = (struct qeth_card *)
3702 VLAN_DEV_INFO(dev)->real_dev->priv;
3703
3704 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3705 return card ;
3706 }
3707
3708 static void
3709 qeth_tx_timeout(struct net_device *dev)
3710 {
3711 struct qeth_card *card;
3712
3713 card = (struct qeth_card *) dev->priv;
3714 card->stats.tx_errors++;
3715 qeth_schedule_recovery(card);
3716 }
3717
3718 static int
3719 qeth_open(struct net_device *dev)
3720 {
3721 struct qeth_card *card;
3722
3723 QETH_DBF_TEXT(trace, 4, "qethopen");
3724
3725 card = (struct qeth_card *) dev->priv;
3726
3727 if (card->state != CARD_STATE_SOFTSETUP)
3728 return -ENODEV;
3729
3730 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3731 (card->options.layer2) &&
3732 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3733 QETH_DBF_TEXT(trace,4,"nomacadr");
3734 return -EPERM;
3735 }
3736 card->data.state = CH_STATE_UP;
3737 card->state = CARD_STATE_UP;
3738 card->dev->flags |= IFF_UP;
3739 netif_start_queue(dev);
3740
3741 if (!card->lan_online && netif_carrier_ok(dev))
3742 netif_carrier_off(dev);
3743 return 0;
3744 }
3745
3746 static int
3747 qeth_stop(struct net_device *dev)
3748 {
3749 struct qeth_card *card;
3750
3751 QETH_DBF_TEXT(trace, 4, "qethstop");
3752
3753 card = (struct qeth_card *) dev->priv;
3754
3755 netif_tx_disable(dev);
3756 card->dev->flags &= ~IFF_UP;
3757 if (card->state == CARD_STATE_UP)
3758 card->state = CARD_STATE_SOFTSETUP;
3759 return 0;
3760 }
3761
3762 static int
3763 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3764 {
3765 int cast_type = RTN_UNSPEC;
3766
3767 if (card->info.type == QETH_CARD_TYPE_OSN)
3768 return cast_type;
3769
3770 if (skb->dst && skb->dst->neighbour){
3771 cast_type = skb->dst->neighbour->type;
3772 if ((cast_type == RTN_BROADCAST) ||
3773 (cast_type == RTN_MULTICAST) ||
3774 (cast_type == RTN_ANYCAST))
3775 return cast_type;
3776 else
3777 return RTN_UNSPEC;
3778 }
3779 /* try something else */
3780 if (skb->protocol == ETH_P_IPV6)
3781 return (skb_network_header(skb)[24] == 0xff) ?
3782 RTN_MULTICAST : 0;
3783 else if (skb->protocol == ETH_P_IP)
3784 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
3785 RTN_MULTICAST : 0;
3786 /* ... */
3787 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3788 return RTN_BROADCAST;
3789 else {
3790 u16 hdr_mac;
3791
3792 hdr_mac = *((u16 *)skb->data);
3793 /* tr multicast? */
3794 switch (card->info.link_type) {
3795 case QETH_LINK_TYPE_HSTR:
3796 case QETH_LINK_TYPE_LANE_TR:
3797 if ((hdr_mac == QETH_TR_MAC_NC) ||
3798 (hdr_mac == QETH_TR_MAC_C))
3799 return RTN_MULTICAST;
3800 break;
3801 /* eth or so multicast? */
3802 default:
3803 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3804 (hdr_mac == QETH_ETH_MAC_V6))
3805 return RTN_MULTICAST;
3806 }
3807 }
3808 return cast_type;
3809 }
3810
3811 static int
3812 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3813 int ipv, int cast_type)
3814 {
3815 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3816 return card->qdio.default_out_queue;
3817 switch (card->qdio.no_out_queues) {
3818 case 4:
3819 if (cast_type && card->info.is_multicast_different)
3820 return card->info.is_multicast_different &
3821 (card->qdio.no_out_queues - 1);
3822 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3823 const u8 tos = ip_hdr(skb)->tos;
3824
3825 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3826 if (tos & IP_TOS_NOTIMPORTANT)
3827 return 3;
3828 if (tos & IP_TOS_HIGHRELIABILITY)
3829 return 2;
3830 if (tos & IP_TOS_HIGHTHROUGHPUT)
3831 return 1;
3832 if (tos & IP_TOS_LOWDELAY)
3833 return 0;
3834 }
3835 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3836 return 3 - (tos >> 6);
3837 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3838 /* TODO: IPv6!!! */
3839 }
3840 return card->qdio.default_out_queue;
3841 case 1: /* fallthrough for single-out-queue 1920-device */
3842 default:
3843 return card->qdio.default_out_queue;
3844 }
3845 }
3846
3847 static inline int
3848 qeth_get_ip_version(struct sk_buff *skb)
3849 {
3850 switch (skb->protocol) {
3851 case ETH_P_IPV6:
3852 return 6;
3853 case ETH_P_IP:
3854 return 4;
3855 default:
3856 return 0;
3857 }
3858 }
3859
3860 static struct qeth_hdr *
3861 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
3862 {
3863 #ifdef CONFIG_QETH_VLAN
3864 u16 *tag;
3865 if (card->vlangrp && vlan_tx_tag_present(skb) &&
3866 ((ipv == 6) || card->options.layer2) ) {
3867 /*
3868 * Move the mac addresses (6 bytes src, 6 bytes dest)
3869 * to the beginning of the new header. We are using three
3870 * memcpys instead of one memmove to save cycles.
3871 */
3872 skb_push(skb, VLAN_HLEN);
3873 memcpy(skb->data, skb->data + 4, 4);
3874 memcpy(skb->data + 4, skb->data + 8, 4);
3875 memcpy(skb->data + 8, skb->data + 12, 4);
3876 tag = (u16 *)(skb->data + 12);
3877 /*
3878 * first two bytes = ETH_P_8021Q (0x8100)
3879 * second two bytes = VLANID
3880 */
3881 *tag = __constant_htons(ETH_P_8021Q);
3882 *(tag + 1) = htons(vlan_tx_tag_get(skb));
3883 }
3884 #endif
3885 return ((struct qeth_hdr *)
3886 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3887 }
3888
3889 static void
3890 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3891 {
3892 if (orig_skb != new_skb)
3893 dev_kfree_skb_any(new_skb);
3894 }
3895
3896 static struct sk_buff *
3897 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3898 struct qeth_hdr **hdr, int ipv)
3899 {
3900 struct sk_buff *new_skb, *new_skb2;
3901
3902 QETH_DBF_TEXT(trace, 6, "prepskb");
3903 new_skb = skb;
3904 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
3905 if (!new_skb)
3906 return NULL;
3907 new_skb2 = qeth_realloc_headroom(card, new_skb,
3908 sizeof(struct qeth_hdr));
3909 if (!new_skb2) {
3910 __qeth_free_new_skb(skb, new_skb);
3911 return NULL;
3912 }
3913 if (new_skb != skb)
3914 __qeth_free_new_skb(new_skb2, new_skb);
3915 new_skb = new_skb2;
3916 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3917 if (*hdr == NULL) {
3918 __qeth_free_new_skb(skb, new_skb);
3919 return NULL;
3920 }
3921 return new_skb;
3922 }
3923
3924 static inline u8
3925 qeth_get_qeth_hdr_flags4(int cast_type)
3926 {
3927 if (cast_type == RTN_MULTICAST)
3928 return QETH_CAST_MULTICAST;
3929 if (cast_type == RTN_BROADCAST)
3930 return QETH_CAST_BROADCAST;
3931 return QETH_CAST_UNICAST;
3932 }
3933
3934 static inline u8
3935 qeth_get_qeth_hdr_flags6(int cast_type)
3936 {
3937 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3938 if (cast_type == RTN_MULTICAST)
3939 return ct | QETH_CAST_MULTICAST;
3940 if (cast_type == RTN_ANYCAST)
3941 return ct | QETH_CAST_ANYCAST;
3942 if (cast_type == RTN_BROADCAST)
3943 return ct | QETH_CAST_BROADCAST;
3944 return ct | QETH_CAST_UNICAST;
3945 }
3946
3947 static void
3948 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3949 struct sk_buff *skb)
3950 {
3951 __u16 hdr_mac;
3952
3953 if (!memcmp(skb->data+QETH_HEADER_SIZE,
3954 skb->dev->broadcast,6)) { /* broadcast? */
3955 *(__u32 *)hdr->hdr.l2.flags |=
3956 QETH_LAYER2_FLAG_BROADCAST << 8;
3957 return;
3958 }
3959 hdr_mac=*((__u16*)skb->data);
3960 /* tr multicast? */
3961 switch (card->info.link_type) {
3962 case QETH_LINK_TYPE_HSTR:
3963 case QETH_LINK_TYPE_LANE_TR:
3964 if ((hdr_mac == QETH_TR_MAC_NC) ||
3965 (hdr_mac == QETH_TR_MAC_C) )
3966 *(__u32 *)hdr->hdr.l2.flags |=
3967 QETH_LAYER2_FLAG_MULTICAST << 8;
3968 else
3969 *(__u32 *)hdr->hdr.l2.flags |=
3970 QETH_LAYER2_FLAG_UNICAST << 8;
3971 break;
3972 /* eth or so multicast? */
3973 default:
3974 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3975 (hdr_mac==QETH_ETH_MAC_V6) )
3976 *(__u32 *)hdr->hdr.l2.flags |=
3977 QETH_LAYER2_FLAG_MULTICAST << 8;
3978 else
3979 *(__u32 *)hdr->hdr.l2.flags |=
3980 QETH_LAYER2_FLAG_UNICAST << 8;
3981 }
3982 }
3983
3984 static void
3985 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3986 struct sk_buff *skb, int cast_type)
3987 {
3988 memset(hdr, 0, sizeof(struct qeth_hdr));
3989 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
3990
3991 /* set byte 0 to "0x02" and byte 3 to casting flags */
3992 if (cast_type==RTN_MULTICAST)
3993 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
3994 else if (cast_type==RTN_BROADCAST)
3995 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
3996 else
3997 qeth_layer2_get_packet_type(card, hdr, skb);
3998
3999 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4000 #ifdef CONFIG_QETH_VLAN
4001 /* VSWITCH relies on the VLAN
4002 * information to be present in
4003 * the QDIO header */
4004 if ((card->vlangrp != NULL) &&
4005 vlan_tx_tag_present(skb)) {
4006 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4007 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4008 }
4009 #endif
4010 }
4011
4012 void
4013 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4014 struct sk_buff *skb, int ipv, int cast_type)
4015 {
4016 QETH_DBF_TEXT(trace, 6, "fillhdr");
4017
4018 memset(hdr, 0, sizeof(struct qeth_hdr));
4019 if (card->options.layer2) {
4020 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4021 return;
4022 }
4023 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4024 hdr->hdr.l3.ext_flags = 0;
4025 #ifdef CONFIG_QETH_VLAN
4026 /*
4027 * before we're going to overwrite this location with next hop ip.
4028 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4029 */
4030 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4031 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4032 QETH_HDR_EXT_VLAN_FRAME :
4033 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4034 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4035 }
4036 #endif /* CONFIG_QETH_VLAN */
4037 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4038 if (ipv == 4) { /* IPv4 */
4039 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4040 memset(hdr->hdr.l3.dest_addr, 0, 12);
4041 if ((skb->dst) && (skb->dst->neighbour)) {
4042 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4043 *((u32 *) skb->dst->neighbour->primary_key);
4044 } else {
4045 /* fill in destination address used in ip header */
4046 *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4047 ip_hdr(skb)->daddr;
4048 }
4049 } else if (ipv == 6) { /* IPv6 or passthru */
4050 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4051 if ((skb->dst) && (skb->dst->neighbour)) {
4052 memcpy(hdr->hdr.l3.dest_addr,
4053 skb->dst->neighbour->primary_key, 16);
4054 } else {
4055 /* fill in destination address used in ip header */
4056 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4057 }
4058 } else { /* passthrough */
4059 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4060 !memcmp(skb->data + sizeof(struct qeth_hdr) +
4061 sizeof(__u16), skb->dev->broadcast, 6)) {
4062 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4063 QETH_HDR_PASSTHRU;
4064 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4065 skb->dev->broadcast, 6)) { /* broadcast? */
4066 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4067 QETH_HDR_PASSTHRU;
4068 } else {
4069 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4070 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4071 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4072 }
4073 }
4074 }
4075
4076 static void
4077 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4078 int is_tso, int *next_element_to_fill)
4079 {
4080 int length = skb->len;
4081 int length_here;
4082 int element;
4083 char *data;
4084 int first_lap ;
4085
4086 element = *next_element_to_fill;
4087 data = skb->data;
4088 first_lap = (is_tso == 0 ? 1 : 0);
4089
4090 while (length > 0) {
4091 /* length_here is the remaining amount of data in this page */
4092 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4093 if (length < length_here)
4094 length_here = length;
4095
4096 buffer->element[element].addr = data;
4097 buffer->element[element].length = length_here;
4098 length -= length_here;
4099 if (!length) {
4100 if (first_lap)
4101 buffer->element[element].flags = 0;
4102 else
4103 buffer->element[element].flags =
4104 SBAL_FLAGS_LAST_FRAG;
4105 } else {
4106 if (first_lap)
4107 buffer->element[element].flags =
4108 SBAL_FLAGS_FIRST_FRAG;
4109 else
4110 buffer->element[element].flags =
4111 SBAL_FLAGS_MIDDLE_FRAG;
4112 }
4113 data += length_here;
4114 element++;
4115 first_lap = 0;
4116 }
4117 *next_element_to_fill = element;
4118 }
4119
4120 static int
4121 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4122 struct qeth_qdio_out_buffer *buf,
4123 struct sk_buff *skb)
4124 {
4125 struct qdio_buffer *buffer;
4126 struct qeth_hdr_tso *hdr;
4127 int flush_cnt = 0, hdr_len, large_send = 0;
4128
4129 QETH_DBF_TEXT(trace, 6, "qdfillbf");
4130
4131 buffer = buf->buffer;
4132 atomic_inc(&skb->users);
4133 skb_queue_tail(&buf->skb_list, skb);
4134
4135 hdr = (struct qeth_hdr_tso *) skb->data;
4136 /*check first on TSO ....*/
4137 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4138 int element = buf->next_element_to_fill;
4139
4140 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4141 /*fill first buffer entry only with header information */
4142 buffer->element[element].addr = skb->data;
4143 buffer->element[element].length = hdr_len;
4144 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4145 buf->next_element_to_fill++;
4146 skb->data += hdr_len;
4147 skb->len -= hdr_len;
4148 large_send = 1;
4149 }
4150 if (skb_shinfo(skb)->nr_frags == 0)
4151 __qeth_fill_buffer(skb, buffer, large_send,
4152 (int *)&buf->next_element_to_fill);
4153 else
4154 __qeth_fill_buffer_frag(skb, buffer, large_send,
4155 (int *)&buf->next_element_to_fill);
4156
4157 if (!queue->do_pack) {
4158 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4159 /* set state to PRIMED -> will be flushed */
4160 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4161 flush_cnt = 1;
4162 } else {
4163 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4164 if (queue->card->options.performance_stats)
4165 queue->card->perf_stats.skbs_sent_pack++;
4166 if (buf->next_element_to_fill >=
4167 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4168 /*
4169 * packed buffer if full -> set state PRIMED
4170 * -> will be flushed
4171 */
4172 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4173 flush_cnt = 1;
4174 }
4175 }
4176 return flush_cnt;
4177 }
4178
4179 static int
4180 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4181 struct sk_buff *skb, struct qeth_hdr *hdr,
4182 int elements_needed,
4183 struct qeth_eddp_context *ctx)
4184 {
4185 struct qeth_qdio_out_buffer *buffer;
4186 int buffers_needed = 0;
4187 int flush_cnt = 0;
4188 int index;
4189
4190 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4191
4192 /* spin until we get the queue ... */
4193 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4194 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4195 /* ... now we've got the queue */
4196 index = queue->next_buf_to_fill;
4197 buffer = &queue->bufs[queue->next_buf_to_fill];
4198 /*
4199 * check if buffer is empty to make sure that we do not 'overtake'
4200 * ourselves and try to fill a buffer that is already primed
4201 */
4202 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4203 goto out;
4204 if (ctx == NULL)
4205 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4206 QDIO_MAX_BUFFERS_PER_Q;
4207 else {
4208 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4209 if (buffers_needed < 0)
4210 goto out;
4211 queue->next_buf_to_fill =
4212 (queue->next_buf_to_fill + buffers_needed) %
4213 QDIO_MAX_BUFFERS_PER_Q;
4214 }
4215 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4216 if (ctx == NULL) {
4217 qeth_fill_buffer(queue, buffer, skb);
4218 qeth_flush_buffers(queue, 0, index, 1);
4219 } else {
4220 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4221 WARN_ON(buffers_needed != flush_cnt);
4222 qeth_flush_buffers(queue, 0, index, flush_cnt);
4223 }
4224 return 0;
4225 out:
4226 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4227 return -EBUSY;
4228 }
4229
4230 static int
4231 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4232 struct sk_buff *skb, struct qeth_hdr *hdr,
4233 int elements_needed, struct qeth_eddp_context *ctx)
4234 {
4235 struct qeth_qdio_out_buffer *buffer;
4236 int start_index;
4237 int flush_count = 0;
4238 int do_pack = 0;
4239 int tmp;
4240 int rc = 0;
4241
4242 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4243
4244 /* spin until we get the queue ... */
4245 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4246 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4247 start_index = queue->next_buf_to_fill;
4248 buffer = &queue->bufs[queue->next_buf_to_fill];
4249 /*
4250 * check if buffer is empty to make sure that we do not 'overtake'
4251 * ourselves and try to fill a buffer that is already primed
4252 */
4253 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4254 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4255 return -EBUSY;
4256 }
4257 /* check if we need to switch packing state of this queue */
4258 qeth_switch_to_packing_if_needed(queue);
4259 if (queue->do_pack){
4260 do_pack = 1;
4261 if (ctx == NULL) {
4262 /* does packet fit in current buffer? */
4263 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4264 buffer->next_element_to_fill) < elements_needed){
4265 /* ... no -> set state PRIMED */
4266 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4267 flush_count++;
4268 queue->next_buf_to_fill =
4269 (queue->next_buf_to_fill + 1) %
4270 QDIO_MAX_BUFFERS_PER_Q;
4271 buffer = &queue->bufs[queue->next_buf_to_fill];
4272 /* we did a step forward, so check buffer state
4273 * again */
4274 if (atomic_read(&buffer->state) !=
4275 QETH_QDIO_BUF_EMPTY){
4276 qeth_flush_buffers(queue, 0, start_index, flush_count);
4277 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4278 return -EBUSY;
4279 }
4280 }
4281 } else {
4282 /* check if we have enough elements (including following
4283 * free buffers) to handle eddp context */
4284 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4285 printk("eddp tx_dropped 1\n");
4286 rc = -EBUSY;
4287 goto out;
4288 }
4289 }
4290 }
4291 if (ctx == NULL)
4292 tmp = qeth_fill_buffer(queue, buffer, skb);
4293 else {
4294 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4295 if (tmp < 0) {
4296 printk("eddp tx_dropped 2\n");
4297 rc = - EBUSY;
4298 goto out;
4299 }
4300 }
4301 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4302 QDIO_MAX_BUFFERS_PER_Q;
4303 flush_count += tmp;
4304 out:
4305 if (flush_count)
4306 qeth_flush_buffers(queue, 0, start_index, flush_count);
4307 else if (!atomic_read(&queue->set_pci_flags_count))
4308 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4309 /*
4310 * queue->state will go from LOCKED -> UNLOCKED or from
4311 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4312 * (switch packing state or flush buffer to get another pci flag out).
4313 * In that case we will enter this loop
4314 */
4315 while (atomic_dec_return(&queue->state)){
4316 flush_count = 0;
4317 start_index = queue->next_buf_to_fill;
4318 /* check if we can go back to non-packing state */
4319 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4320 /*
4321 * check if we need to flush a packing buffer to get a pci
4322 * flag out on the queue
4323 */
4324 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4325 flush_count += qeth_flush_buffers_on_no_pci(queue);
4326 if (flush_count)
4327 qeth_flush_buffers(queue, 0, start_index, flush_count);
4328 }
4329 /* at this point the queue is UNLOCKED again */
4330 if (queue->card->options.performance_stats && do_pack)
4331 queue->card->perf_stats.bufs_sent_pack += flush_count;
4332
4333 return rc;
4334 }
4335
4336 static int
4337 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4338 struct sk_buff *skb, int elems)
4339 {
4340 int elements_needed = 0;
4341
4342 if (skb_shinfo(skb)->nr_frags > 0)
4343 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4344 if (elements_needed == 0)
4345 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4346 + skb->len) >> PAGE_SHIFT);
4347 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4348 PRINT_ERR("Invalid size of IP packet "
4349 "(Number=%d / Length=%d). Discarded.\n",
4350 (elements_needed+elems), skb->len);
4351 return 0;
4352 }
4353 return elements_needed;
4354 }
4355
4356
4357 static int
4358 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4359 {
4360 int ipv = 0;
4361 int cast_type;
4362 struct qeth_qdio_out_q *queue;
4363 struct qeth_hdr *hdr = NULL;
4364 int elements_needed = 0;
4365 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4366 struct qeth_eddp_context *ctx = NULL;
4367 int tx_bytes = skb->len;
4368 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4369 unsigned short tso_size = skb_shinfo(skb)->gso_size;
4370 struct sk_buff *new_skb, *new_skb2;
4371 int rc;
4372
4373 QETH_DBF_TEXT(trace, 6, "sendpkt");
4374
4375 new_skb = skb;
4376 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4377 (skb->protocol == htons(ETH_P_IPV6)))
4378 return -EPERM;
4379 cast_type = qeth_get_cast_type(card, skb);
4380 if ((cast_type == RTN_BROADCAST) &&
4381 (card->info.broadcast_capable == 0))
4382 return -EPERM;
4383 queue = card->qdio.out_qs
4384 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4385 if (!card->options.layer2) {
4386 ipv = qeth_get_ip_version(skb);
4387 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4388 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4389 if (!new_skb)
4390 return -ENOMEM;
4391 if(card->dev->type == ARPHRD_IEEE802_TR){
4392 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4393 } else {
4394 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4395 }
4396 }
4397 }
4398 if (skb_is_gso(skb))
4399 large_send = card->options.large_send;
4400 /* check on OSN device*/
4401 if (card->info.type == QETH_CARD_TYPE_OSN)
4402 hdr = (struct qeth_hdr *)new_skb->data;
4403 /*are we able to do TSO ? */
4404 if ((large_send == QETH_LARGE_SEND_TSO) &&
4405 (cast_type == RTN_UNSPEC)) {
4406 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4407 if (rc) {
4408 __qeth_free_new_skb(skb, new_skb);
4409 return rc;
4410 }
4411 elements_needed++;
4412 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4413 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4414 if (!new_skb2) {
4415 __qeth_free_new_skb(skb, new_skb);
4416 return -EINVAL;
4417 }
4418 if (new_skb != skb)
4419 __qeth_free_new_skb(new_skb2, new_skb);
4420 new_skb = new_skb2;
4421 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4422 }
4423 if (large_send == QETH_LARGE_SEND_EDDP) {
4424 ctx = qeth_eddp_create_context(card, new_skb, hdr);
4425 if (ctx == NULL) {
4426 __qeth_free_new_skb(skb, new_skb);
4427 PRINT_WARN("could not create eddp context\n");
4428 return -EINVAL;
4429 }
4430 } else {
4431 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4432 elements_needed);
4433 if (!elems) {
4434 __qeth_free_new_skb(skb, new_skb);
4435 return -EINVAL;
4436 }
4437 elements_needed += elems;
4438 }
4439
4440 if (card->info.type != QETH_CARD_TYPE_IQD)
4441 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4442 elements_needed, ctx);
4443 else
4444 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4445 elements_needed, ctx);
4446 if (!rc) {
4447 card->stats.tx_packets++;
4448 card->stats.tx_bytes += tx_bytes;
4449 if (new_skb != skb)
4450 dev_kfree_skb_any(skb);
4451 if (card->options.performance_stats) {
4452 if (tso_size &&
4453 !(large_send == QETH_LARGE_SEND_NO)) {
4454 card->perf_stats.large_send_bytes += tx_bytes;
4455 card->perf_stats.large_send_cnt++;
4456 }
4457 if (nr_frags > 0) {
4458 card->perf_stats.sg_skbs_sent++;
4459 /* nr_frags + skb->data */
4460 card->perf_stats.sg_frags_sent +=
4461 nr_frags + 1;
4462 }
4463 }
4464 } else {
4465 card->stats.tx_dropped++;
4466 __qeth_free_new_skb(skb, new_skb);
4467 }
4468 if (ctx != NULL) {
4469 /* drop creator's reference */
4470 qeth_eddp_put_context(ctx);
4471 /* free skb; it's not referenced by a buffer */
4472 if (!rc)
4473 dev_kfree_skb_any(new_skb);
4474 }
4475 return rc;
4476 }
4477
4478 static int
4479 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4480 {
4481 struct qeth_card *card = (struct qeth_card *) dev->priv;
4482 int rc = 0;
4483
4484 switch(regnum){
4485 case MII_BMCR: /* Basic mode control register */
4486 rc = BMCR_FULLDPLX;
4487 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4488 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4489 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4490 rc |= BMCR_SPEED100;
4491 break;
4492 case MII_BMSR: /* Basic mode status register */
4493 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4494 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4495 BMSR_100BASE4;
4496 break;
4497 case MII_PHYSID1: /* PHYS ID 1 */
4498 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4499 dev->dev_addr[2];
4500 rc = (rc >> 5) & 0xFFFF;
4501 break;
4502 case MII_PHYSID2: /* PHYS ID 2 */
4503 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4504 break;
4505 case MII_ADVERTISE: /* Advertisement control reg */
4506 rc = ADVERTISE_ALL;
4507 break;
4508 case MII_LPA: /* Link partner ability reg */
4509 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4510 LPA_100BASE4 | LPA_LPACK;
4511 break;
4512 case MII_EXPANSION: /* Expansion register */
4513 break;
4514 case MII_DCOUNTER: /* disconnect counter */
4515 break;
4516 case MII_FCSCOUNTER: /* false carrier counter */
4517 break;
4518 case MII_NWAYTEST: /* N-way auto-neg test register */
4519 break;
4520 case MII_RERRCOUNTER: /* rx error counter */
4521 rc = card->stats.rx_errors;
4522 break;
4523 case MII_SREVISION: /* silicon revision */
4524 break;
4525 case MII_RESV1: /* reserved 1 */
4526 break;
4527 case MII_LBRERROR: /* loopback, rx, bypass error */
4528 break;
4529 case MII_PHYADDR: /* physical address */
4530 break;
4531 case MII_RESV2: /* reserved 2 */
4532 break;
4533 case MII_TPISTATUS: /* TPI status for 10mbps */
4534 break;
4535 case MII_NCONFIG: /* network interface config */
4536 break;
4537 default:
4538 break;
4539 }
4540 return rc;
4541 }
4542
4543
4544 static const char *
4545 qeth_arp_get_error_cause(int *rc)
4546 {
4547 switch (*rc) {
4548 case QETH_IPA_ARP_RC_FAILED:
4549 *rc = -EIO;
4550 return "operation failed";
4551 case QETH_IPA_ARP_RC_NOTSUPP:
4552 *rc = -EOPNOTSUPP;
4553 return "operation not supported";
4554 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4555 *rc = -EINVAL;
4556 return "argument out of range";
4557 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4558 *rc = -EOPNOTSUPP;
4559 return "query operation not supported";
4560 case QETH_IPA_ARP_RC_Q_NO_DATA:
4561 *rc = -ENOENT;
4562 return "no query data available";
4563 default:
4564 return "unknown error";
4565 }
4566 }
4567
4568 static int
4569 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4570 __u16, long);
4571
4572 static int
4573 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4574 {
4575 int tmp;
4576 int rc;
4577
4578 QETH_DBF_TEXT(trace,3,"arpstnoe");
4579
4580 /*
4581 * currently GuestLAN only supports the ARP assist function
4582 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4583 * thus we say EOPNOTSUPP for this ARP function
4584 */
4585 if (card->info.guestlan)
4586 return -EOPNOTSUPP;
4587 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4588 PRINT_WARN("ARP processing not supported "
4589 "on %s!\n", QETH_CARD_IFNAME(card));
4590 return -EOPNOTSUPP;
4591 }
4592 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4593 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4594 no_entries);
4595 if (rc) {
4596 tmp = rc;
4597 PRINT_WARN("Could not set number of ARP entries on %s: "
4598 "%s (0x%x/%d)\n",
4599 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4600 tmp, tmp);
4601 }
4602 return rc;
4603 }
4604
4605 static void
4606 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4607 struct qeth_arp_query_data *qdata,
4608 int entry_size, int uentry_size)
4609 {
4610 char *entry_ptr;
4611 char *uentry_ptr;
4612 int i;
4613
4614 entry_ptr = (char *)&qdata->data;
4615 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4616 for (i = 0; i < qdata->no_entries; ++i){
4617 /* strip off 32 bytes "media specific information" */
4618 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4619 entry_ptr += entry_size;
4620 uentry_ptr += uentry_size;
4621 }
4622 }
4623
4624 static int
4625 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4626 unsigned long data)
4627 {
4628 struct qeth_ipa_cmd *cmd;
4629 struct qeth_arp_query_data *qdata;
4630 struct qeth_arp_query_info *qinfo;
4631 int entry_size;
4632 int uentry_size;
4633 int i;
4634
4635 QETH_DBF_TEXT(trace,4,"arpquecb");
4636
4637 qinfo = (struct qeth_arp_query_info *) reply->param;
4638 cmd = (struct qeth_ipa_cmd *) data;
4639 if (cmd->hdr.return_code) {
4640 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4641 return 0;
4642 }
4643 if (cmd->data.setassparms.hdr.return_code) {
4644 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4645 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4646 return 0;
4647 }
4648 qdata = &cmd->data.setassparms.data.query_arp;
4649 switch(qdata->reply_bits){
4650 case 5:
4651 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4652 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4653 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4654 break;
4655 case 7:
4656 /* fall through to default */
4657 default:
4658 /* tr is the same as eth -> entry7 */
4659 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4660 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4661 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4662 break;
4663 }
4664 /* check if there is enough room in userspace */
4665 if ((qinfo->udata_len - qinfo->udata_offset) <
4666 qdata->no_entries * uentry_size){
4667 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4668 cmd->hdr.return_code = -ENOMEM;
4669 PRINT_WARN("query ARP user space buffer is too small for "
4670 "the returned number of ARP entries. "
4671 "Aborting query!\n");
4672 goto out_error;
4673 }
4674 QETH_DBF_TEXT_(trace, 4, "anore%i",
4675 cmd->data.setassparms.hdr.number_of_replies);
4676 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4677 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4678
4679 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4680 /* strip off "media specific information" */
4681 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4682 uentry_size);
4683 } else
4684 /*copy entries to user buffer*/
4685 memcpy(qinfo->udata + qinfo->udata_offset,
4686 (char *)&qdata->data, qdata->no_entries*uentry_size);
4687
4688 qinfo->no_entries += qdata->no_entries;
4689 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4690 /* check if all replies received ... */
4691 if (cmd->data.setassparms.hdr.seq_no <
4692 cmd->data.setassparms.hdr.number_of_replies)
4693 return 1;
4694 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4695 /* keep STRIP_ENTRIES flag so the user program can distinguish
4696 * stripped entries from normal ones */
4697 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4698 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4699 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4700 return 0;
4701 out_error:
4702 i = 0;
4703 memcpy(qinfo->udata, &i, 4);
4704 return 0;
4705 }
4706
4707 static int
4708 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4709 int len, int (*reply_cb)(struct qeth_card *,
4710 struct qeth_reply *,
4711 unsigned long),
4712 void *reply_param)
4713 {
4714 QETH_DBF_TEXT(trace,4,"sendarp");
4715
4716 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4717 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4718 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4719 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4720 reply_cb, reply_param);
4721 }
4722
4723 static int
4724 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4725 int len, int (*reply_cb)(struct qeth_card *,
4726 struct qeth_reply *,
4727 unsigned long),
4728 void *reply_param)
4729 {
4730 u16 s1, s2;
4731
4732 QETH_DBF_TEXT(trace,4,"sendsnmp");
4733
4734 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4735 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4736 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4737 /* adjust PDU length fields in IPA_PDU_HEADER */
4738 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4739 s2 = (u32) len;
4740 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4741 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4742 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4743 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4744 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4745 reply_cb, reply_param);
4746 }
4747
4748 static struct qeth_cmd_buffer *
4749 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4750 __u16, __u16, enum qeth_prot_versions);
4751 static int
4752 qeth_arp_query(struct qeth_card *card, char __user *udata)
4753 {
4754 struct qeth_cmd_buffer *iob;
4755 struct qeth_arp_query_info qinfo = {0, };
4756 int tmp;
4757 int rc;
4758
4759 QETH_DBF_TEXT(trace,3,"arpquery");
4760
4761 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4762 IPA_ARP_PROCESSING)) {
4763 PRINT_WARN("ARP processing not supported "
4764 "on %s!\n", QETH_CARD_IFNAME(card));
4765 return -EOPNOTSUPP;
4766 }
4767 /* get size of userspace buffer and mask_bits -> 6 bytes */
4768 if (copy_from_user(&qinfo, udata, 6))
4769 return -EFAULT;
4770 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4771 return -ENOMEM;
4772 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4773 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4774 IPA_CMD_ASS_ARP_QUERY_INFO,
4775 sizeof(int),QETH_PROT_IPV4);
4776
4777 rc = qeth_send_ipa_arp_cmd(card, iob,
4778 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4779 qeth_arp_query_cb, (void *)&qinfo);
4780 if (rc) {
4781 tmp = rc;
4782 PRINT_WARN("Error while querying ARP cache on %s: %s "
4783 "(0x%x/%d)\n",
4784 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4785 tmp, tmp);
4786 if (copy_to_user(udata, qinfo.udata, 4))
4787 rc = -EFAULT;
4788 } else {
4789 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4790 rc = -EFAULT;
4791 }
4792 kfree(qinfo.udata);
4793 return rc;
4794 }
4795
4796 /**
4797 * SNMP command callback
4798 */
4799 static int
4800 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4801 unsigned long sdata)
4802 {
4803 struct qeth_ipa_cmd *cmd;
4804 struct qeth_arp_query_info *qinfo;
4805 struct qeth_snmp_cmd *snmp;
4806 unsigned char *data;
4807 __u16 data_len;
4808
4809 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4810
4811 cmd = (struct qeth_ipa_cmd *) sdata;
4812 data = (unsigned char *)((char *)cmd - reply->offset);
4813 qinfo = (struct qeth_arp_query_info *) reply->param;
4814 snmp = &cmd->data.setadapterparms.data.snmp;
4815
4816 if (cmd->hdr.return_code) {
4817 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4818 return 0;
4819 }
4820 if (cmd->data.setadapterparms.hdr.return_code) {
4821 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4822 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4823 return 0;
4824 }
4825 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4826 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4827 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4828 else
4829 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4830
4831 /* check if there is enough room in userspace */
4832 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4833 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4834 cmd->hdr.return_code = -ENOMEM;
4835 return 0;
4836 }
4837 QETH_DBF_TEXT_(trace, 4, "snore%i",
4838 cmd->data.setadapterparms.hdr.used_total);
4839 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4840 /*copy entries to user buffer*/
4841 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4842 memcpy(qinfo->udata + qinfo->udata_offset,
4843 (char *)snmp,
4844 data_len + offsetof(struct qeth_snmp_cmd,data));
4845 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4846 } else {
4847 memcpy(qinfo->udata + qinfo->udata_offset,
4848 (char *)&snmp->request, data_len);
4849 }
4850 qinfo->udata_offset += data_len;
4851 /* check if all replies received ... */
4852 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4853 cmd->data.setadapterparms.hdr.used_total);
4854 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4855 cmd->data.setadapterparms.hdr.seq_no);
4856 if (cmd->data.setadapterparms.hdr.seq_no <
4857 cmd->data.setadapterparms.hdr.used_total)
4858 return 1;
4859 return 0;
4860 }
4861
4862 static struct qeth_cmd_buffer *
4863 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4864 enum qeth_prot_versions );
4865
4866 static struct qeth_cmd_buffer *
4867 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4868 {
4869 struct qeth_cmd_buffer *iob;
4870 struct qeth_ipa_cmd *cmd;
4871
4872 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4873 QETH_PROT_IPV4);
4874 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4875 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4876 cmd->data.setadapterparms.hdr.command_code = command;
4877 cmd->data.setadapterparms.hdr.used_total = 1;
4878 cmd->data.setadapterparms.hdr.seq_no = 1;
4879
4880 return iob;
4881 }
4882
4883 /**
4884 * function to send SNMP commands to OSA-E card
4885 */
4886 static int
4887 qeth_snmp_command(struct qeth_card *card, char __user *udata)
4888 {
4889 struct qeth_cmd_buffer *iob;
4890 struct qeth_ipa_cmd *cmd;
4891 struct qeth_snmp_ureq *ureq;
4892 int req_len;
4893 struct qeth_arp_query_info qinfo = {0, };
4894 int rc = 0;
4895
4896 QETH_DBF_TEXT(trace,3,"snmpcmd");
4897
4898 if (card->info.guestlan)
4899 return -EOPNOTSUPP;
4900
4901 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4902 (!card->options.layer2) ) {
4903 PRINT_WARN("SNMP Query MIBS not supported "
4904 "on %s!\n", QETH_CARD_IFNAME(card));
4905 return -EOPNOTSUPP;
4906 }
4907 /* skip 4 bytes (data_len struct member) to get req_len */
4908 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4909 return -EFAULT;
4910 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4911 if (!ureq) {
4912 QETH_DBF_TEXT(trace, 2, "snmpnome");
4913 return -ENOMEM;
4914 }
4915 if (copy_from_user(ureq, udata,
4916 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4917 kfree(ureq);
4918 return -EFAULT;
4919 }
4920 qinfo.udata_len = ureq->hdr.data_len;
4921 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
4922 kfree(ureq);
4923 return -ENOMEM;
4924 }
4925 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4926
4927 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4928 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4929 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4930 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4931 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4932 qeth_snmp_command_cb, (void *)&qinfo);
4933 if (rc)
4934 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4935 QETH_CARD_IFNAME(card), rc);
4936 else {
4937 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4938 rc = -EFAULT;
4939 }
4940
4941 kfree(ureq);
4942 kfree(qinfo.udata);
4943 return rc;
4944 }
4945
4946 static int
4947 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4948 unsigned long);
4949
4950 static int
4951 qeth_default_setadapterparms_cb(struct qeth_card *card,
4952 struct qeth_reply *reply,
4953 unsigned long data);
4954 static int
4955 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4956 __u16, long,
4957 int (*reply_cb)
4958 (struct qeth_card *, struct qeth_reply *, unsigned long),
4959 void *reply_param);
4960
4961 static int
4962 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4963 {
4964 struct qeth_cmd_buffer *iob;
4965 char buf[16];
4966 int tmp;
4967 int rc;
4968
4969 QETH_DBF_TEXT(trace,3,"arpadent");
4970
4971 /*
4972 * currently GuestLAN only supports the ARP assist function
4973 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
4974 * thus we say EOPNOTSUPP for this ARP function
4975 */
4976 if (card->info.guestlan)
4977 return -EOPNOTSUPP;
4978 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4979 PRINT_WARN("ARP processing not supported "
4980 "on %s!\n", QETH_CARD_IFNAME(card));
4981 return -EOPNOTSUPP;
4982 }
4983
4984 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4985 IPA_CMD_ASS_ARP_ADD_ENTRY,
4986 sizeof(struct qeth_arp_cache_entry),
4987 QETH_PROT_IPV4);
4988 rc = qeth_send_setassparms(card, iob,
4989 sizeof(struct qeth_arp_cache_entry),
4990 (unsigned long) entry,
4991 qeth_default_setassparms_cb, NULL);
4992 if (rc) {
4993 tmp = rc;
4994 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4995 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4996 "%s (0x%x/%d)\n",
4997 buf, QETH_CARD_IFNAME(card),
4998 qeth_arp_get_error_cause(&rc), tmp, tmp);
4999 }
5000 return rc;
5001 }
5002
5003 static int
5004 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5005 {
5006 struct qeth_cmd_buffer *iob;
5007 char buf[16] = {0, };
5008 int tmp;
5009 int rc;
5010
5011 QETH_DBF_TEXT(trace,3,"arprment");
5012
5013 /*
5014 * currently GuestLAN only supports the ARP assist function
5015 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5016 * thus we say EOPNOTSUPP for this ARP function
5017 */
5018 if (card->info.guestlan)
5019 return -EOPNOTSUPP;
5020 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5021 PRINT_WARN("ARP processing not supported "
5022 "on %s!\n", QETH_CARD_IFNAME(card));
5023 return -EOPNOTSUPP;
5024 }
5025 memcpy(buf, entry, 12);
5026 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5027 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5028 12,
5029 QETH_PROT_IPV4);
5030 rc = qeth_send_setassparms(card, iob,
5031 12, (unsigned long)buf,
5032 qeth_default_setassparms_cb, NULL);
5033 if (rc) {
5034 tmp = rc;
5035 memset(buf, 0, 16);
5036 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5037 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5038 "%s (0x%x/%d)\n",
5039 buf, QETH_CARD_IFNAME(card),
5040 qeth_arp_get_error_cause(&rc), tmp, tmp);
5041 }
5042 return rc;
5043 }
5044
5045 static int
5046 qeth_arp_flush_cache(struct qeth_card *card)
5047 {
5048 int rc;
5049 int tmp;
5050
5051 QETH_DBF_TEXT(trace,3,"arpflush");
5052
5053 /*
5054 * currently GuestLAN only supports the ARP assist function
5055 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5056 * thus we say EOPNOTSUPP for this ARP function
5057 */
5058 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5059 return -EOPNOTSUPP;
5060 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5061 PRINT_WARN("ARP processing not supported "
5062 "on %s!\n", QETH_CARD_IFNAME(card));
5063 return -EOPNOTSUPP;
5064 }
5065 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5066 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5067 if (rc){
5068 tmp = rc;
5069 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5070 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5071 tmp, tmp);
5072 }
5073 return rc;
5074 }
5075
5076 static int
5077 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5078 {
5079 struct qeth_card *card = (struct qeth_card *)dev->priv;
5080 struct qeth_arp_cache_entry arp_entry;
5081 struct mii_ioctl_data *mii_data;
5082 int rc = 0;
5083
5084 if (!card)
5085 return -ENODEV;
5086
5087 if ((card->state != CARD_STATE_UP) &&
5088 (card->state != CARD_STATE_SOFTSETUP))
5089 return -ENODEV;
5090
5091 if (card->info.type == QETH_CARD_TYPE_OSN)
5092 return -EPERM;
5093
5094 switch (cmd){
5095 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5096 if ( !capable(CAP_NET_ADMIN) ||
5097 (card->options.layer2) ) {
5098 rc = -EPERM;
5099 break;
5100 }
5101 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5102 break;
5103 case SIOC_QETH_ARP_QUERY_INFO:
5104 if ( !capable(CAP_NET_ADMIN) ||
5105 (card->options.layer2) ) {
5106 rc = -EPERM;
5107 break;
5108 }
5109 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5110 break;
5111 case SIOC_QETH_ARP_ADD_ENTRY:
5112 if ( !capable(CAP_NET_ADMIN) ||
5113 (card->options.layer2) ) {
5114 rc = -EPERM;
5115 break;
5116 }
5117 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5118 sizeof(struct qeth_arp_cache_entry)))
5119 rc = -EFAULT;
5120 else
5121 rc = qeth_arp_add_entry(card, &arp_entry);
5122 break;
5123 case SIOC_QETH_ARP_REMOVE_ENTRY:
5124 if ( !capable(CAP_NET_ADMIN) ||
5125 (card->options.layer2) ) {
5126 rc = -EPERM;
5127 break;
5128 }
5129 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5130 sizeof(struct qeth_arp_cache_entry)))
5131 rc = -EFAULT;
5132 else
5133 rc = qeth_arp_remove_entry(card, &arp_entry);
5134 break;
5135 case SIOC_QETH_ARP_FLUSH_CACHE:
5136 if ( !capable(CAP_NET_ADMIN) ||
5137 (card->options.layer2) ) {
5138 rc = -EPERM;
5139 break;
5140 }
5141 rc = qeth_arp_flush_cache(card);
5142 break;
5143 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5144 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5145 break;
5146 case SIOC_QETH_GET_CARD_TYPE:
5147 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5148 !card->info.guestlan)
5149 return 1;
5150 return 0;
5151 break;
5152 case SIOCGMIIPHY:
5153 mii_data = if_mii(rq);
5154 mii_data->phy_id = 0;
5155 break;
5156 case SIOCGMIIREG:
5157 mii_data = if_mii(rq);
5158 if (mii_data->phy_id != 0)
5159 rc = -EINVAL;
5160 else
5161 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5162 mii_data->reg_num);
5163 break;
5164 default:
5165 rc = -EOPNOTSUPP;
5166 }
5167 if (rc)
5168 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5169 return rc;
5170 }
5171
5172 static struct net_device_stats *
5173 qeth_get_stats(struct net_device *dev)
5174 {
5175 struct qeth_card *card;
5176
5177 card = (struct qeth_card *) (dev->priv);
5178
5179 QETH_DBF_TEXT(trace,5,"getstat");
5180
5181 return &card->stats;
5182 }
5183
5184 static int
5185 qeth_change_mtu(struct net_device *dev, int new_mtu)
5186 {
5187 struct qeth_card *card;
5188 char dbf_text[15];
5189
5190 card = (struct qeth_card *) (dev->priv);
5191
5192 QETH_DBF_TEXT(trace,4,"chgmtu");
5193 sprintf(dbf_text, "%8x", new_mtu);
5194 QETH_DBF_TEXT(trace,4,dbf_text);
5195
5196 if (new_mtu < 64)
5197 return -EINVAL;
5198 if (new_mtu > 65535)
5199 return -EINVAL;
5200 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5201 (!qeth_mtu_is_valid(card, new_mtu)))
5202 return -EINVAL;
5203 dev->mtu = new_mtu;
5204 return 0;
5205 }
5206
5207 #ifdef CONFIG_QETH_VLAN
5208 static void
5209 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5210 {
5211 struct qeth_card *card;
5212 unsigned long flags;
5213
5214 QETH_DBF_TEXT(trace,4,"vlanreg");
5215
5216 card = (struct qeth_card *) dev->priv;
5217 spin_lock_irqsave(&card->vlanlock, flags);
5218 card->vlangrp = grp;
5219 spin_unlock_irqrestore(&card->vlanlock, flags);
5220 }
5221
5222 static void
5223 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5224 unsigned short vid)
5225 {
5226 int i;
5227 struct sk_buff *skb;
5228 struct sk_buff_head tmp_list;
5229
5230 skb_queue_head_init(&tmp_list);
5231 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5232 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5233 while ((skb = skb_dequeue(&buf->skb_list))){
5234 if (vlan_tx_tag_present(skb) &&
5235 (vlan_tx_tag_get(skb) == vid)) {
5236 atomic_dec(&skb->users);
5237 dev_kfree_skb(skb);
5238 } else
5239 skb_queue_tail(&tmp_list, skb);
5240 }
5241 }
5242 while ((skb = skb_dequeue(&tmp_list)))
5243 skb_queue_tail(&buf->skb_list, skb);
5244 }
5245
5246 static void
5247 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5248 {
5249 int i, j;
5250
5251 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5252 for (i = 0; i < card->qdio.no_out_queues; ++i){
5253 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5254 qeth_free_vlan_buffer(card, &card->qdio.
5255 out_qs[i]->bufs[j], vid);
5256 }
5257 }
5258
5259 static void
5260 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5261 {
5262 struct in_device *in_dev;
5263 struct in_ifaddr *ifa;
5264 struct qeth_ipaddr *addr;
5265
5266 QETH_DBF_TEXT(trace, 4, "frvaddr4");
5267
5268 rcu_read_lock();
5269 in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
5270 if (!in_dev)
5271 goto out;
5272 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5273 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5274 if (addr){
5275 addr->u.a4.addr = ifa->ifa_address;
5276 addr->u.a4.mask = ifa->ifa_mask;
5277 addr->type = QETH_IP_TYPE_NORMAL;
5278 if (!qeth_delete_ip(card, addr))
5279 kfree(addr);
5280 }
5281 }
5282 out:
5283 rcu_read_unlock();
5284 }
5285
5286 static void
5287 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5288 {
5289 #ifdef CONFIG_QETH_IPV6
5290 struct inet6_dev *in6_dev;
5291 struct inet6_ifaddr *ifa;
5292 struct qeth_ipaddr *addr;
5293
5294 QETH_DBF_TEXT(trace, 4, "frvaddr6");
5295
5296 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
5297 if (!in6_dev)
5298 return;
5299 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5300 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5301 if (addr){
5302 memcpy(&addr->u.a6.addr, &ifa->addr,
5303 sizeof(struct in6_addr));
5304 addr->u.a6.pfxlen = ifa->prefix_len;
5305 addr->type = QETH_IP_TYPE_NORMAL;
5306 if (!qeth_delete_ip(card, addr))
5307 kfree(addr);
5308 }
5309 }
5310 in6_dev_put(in6_dev);
5311 #endif /* CONFIG_QETH_IPV6 */
5312 }
5313
5314 static void
5315 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5316 {
5317 if (card->options.layer2 || !card->vlangrp)
5318 return;
5319 qeth_free_vlan_addresses4(card, vid);
5320 qeth_free_vlan_addresses6(card, vid);
5321 }
5322
5323 static int
5324 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5325 struct qeth_reply *reply,
5326 unsigned long data)
5327 {
5328 struct qeth_ipa_cmd *cmd;
5329
5330 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5331 cmd = (struct qeth_ipa_cmd *) data;
5332 if (cmd->hdr.return_code) {
5333 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5334 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5335 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5336 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5337 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5338 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5339 }
5340 return 0;
5341 }
5342
5343 static int
5344 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5345 enum qeth_ipa_cmds ipacmd)
5346 {
5347 struct qeth_ipa_cmd *cmd;
5348 struct qeth_cmd_buffer *iob;
5349
5350 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5351 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5352 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5353 cmd->data.setdelvlan.vlan_id = i;
5354 return qeth_send_ipa_cmd(card, iob,
5355 qeth_layer2_send_setdelvlan_cb, NULL);
5356 }
5357
5358 static void
5359 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5360 {
5361 unsigned short i;
5362
5363 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5364
5365 if (!card->vlangrp)
5366 return;
5367 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5368 if (vlan_group_get_device(card->vlangrp, i) == NULL)
5369 continue;
5370 if (clear)
5371 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5372 else
5373 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5374 }
5375 }
5376
5377 /*add_vid is layer 2 used only ....*/
5378 static void
5379 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5380 {
5381 struct qeth_card *card;
5382
5383 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5384
5385 card = (struct qeth_card *) dev->priv;
5386 if (!card->options.layer2)
5387 return;
5388 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5389 }
5390
5391 /*... kill_vid used for both modes*/
5392 static void
5393 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5394 {
5395 struct qeth_card *card;
5396 unsigned long flags;
5397
5398 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5399
5400 card = (struct qeth_card *) dev->priv;
5401 /* free all skbs for the vlan device */
5402 qeth_free_vlan_skbs(card, vid);
5403 spin_lock_irqsave(&card->vlanlock, flags);
5404 /* unregister IP addresses of vlan device */
5405 qeth_free_vlan_addresses(card, vid);
5406 vlan_group_set_device(card->vlangrp, vid, NULL);
5407 spin_unlock_irqrestore(&card->vlanlock, flags);
5408 if (card->options.layer2)
5409 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5410 qeth_set_multicast_list(card->dev);
5411 }
5412 #endif
5413 /**
5414 * Examine hardware response to SET_PROMISC_MODE
5415 */
5416 static int
5417 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5418 struct qeth_reply *reply,
5419 unsigned long data)
5420 {
5421 struct qeth_ipa_cmd *cmd;
5422 struct qeth_ipacmd_setadpparms *setparms;
5423
5424 QETH_DBF_TEXT(trace,4,"prmadpcb");
5425
5426 cmd = (struct qeth_ipa_cmd *) data;
5427 setparms = &(cmd->data.setadapterparms);
5428
5429 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5430 if (cmd->hdr.return_code) {
5431 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5432 setparms->data.mode = SET_PROMISC_MODE_OFF;
5433 }
5434 card->info.promisc_mode = setparms->data.mode;
5435 return 0;
5436 }
5437 /*
5438 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5439 */
5440 static void
5441 qeth_setadp_promisc_mode(struct qeth_card *card)
5442 {
5443 enum qeth_ipa_promisc_modes mode;
5444 struct net_device *dev = card->dev;
5445 struct qeth_cmd_buffer *iob;
5446 struct qeth_ipa_cmd *cmd;
5447
5448 QETH_DBF_TEXT(trace, 4, "setprom");
5449
5450 if (((dev->flags & IFF_PROMISC) &&
5451 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5452 (!(dev->flags & IFF_PROMISC) &&
5453 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5454 return;
5455 mode = SET_PROMISC_MODE_OFF;
5456 if (dev->flags & IFF_PROMISC)
5457 mode = SET_PROMISC_MODE_ON;
5458 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5459
5460 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5461 sizeof(struct qeth_ipacmd_setadpparms));
5462 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5463 cmd->data.setadapterparms.data.mode = mode;
5464 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5465 }
5466
5467 /**
5468 * set multicast address on card
5469 */
5470 static void
5471 qeth_set_multicast_list(struct net_device *dev)
5472 {
5473 struct qeth_card *card = (struct qeth_card *) dev->priv;
5474
5475 if (card->info.type == QETH_CARD_TYPE_OSN)
5476 return ;
5477
5478 QETH_DBF_TEXT(trace, 3, "setmulti");
5479 qeth_delete_mc_addresses(card);
5480 if (card->options.layer2) {
5481 qeth_layer2_add_multicast(card);
5482 goto out;
5483 }
5484 qeth_add_multicast_ipv4(card);
5485 #ifdef CONFIG_QETH_IPV6
5486 qeth_add_multicast_ipv6(card);
5487 #endif
5488 out:
5489 qeth_set_ip_addr_list(card);
5490 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5491 return;
5492 qeth_setadp_promisc_mode(card);
5493 }
5494
5495 static int
5496 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5497 {
5498 return 0;
5499 }
5500
5501 static void
5502 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5503 {
5504 if (dev->type == ARPHRD_IEEE802_TR)
5505 ip_tr_mc_map(ipm, mac);
5506 else
5507 ip_eth_mc_map(ipm, mac);
5508 }
5509
5510 static struct qeth_ipaddr *
5511 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5512 {
5513 struct qeth_ipaddr *addr;
5514
5515 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5516 if (addr == NULL) {
5517 PRINT_WARN("Not enough memory to add address\n");
5518 return NULL;
5519 }
5520 addr->type = QETH_IP_TYPE_NORMAL;
5521 addr->proto = prot;
5522 return addr;
5523 }
5524
5525 int
5526 qeth_osn_assist(struct net_device *dev,
5527 void *data,
5528 int data_len)
5529 {
5530 struct qeth_cmd_buffer *iob;
5531 struct qeth_card *card;
5532 int rc;
5533
5534 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5535 if (!dev)
5536 return -ENODEV;
5537 card = (struct qeth_card *)dev->priv;
5538 if (!card)
5539 return -ENODEV;
5540 if ((card->state != CARD_STATE_UP) &&
5541 (card->state != CARD_STATE_SOFTSETUP))
5542 return -ENODEV;
5543 iob = qeth_wait_for_buffer(&card->write);
5544 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5545 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5546 return rc;
5547 }
5548
5549 static struct net_device *
5550 qeth_netdev_by_devno(unsigned char *read_dev_no)
5551 {
5552 struct qeth_card *card;
5553 struct net_device *ndev;
5554 unsigned char *readno;
5555 __u16 temp_dev_no, card_dev_no;
5556 char *endp;
5557 unsigned long flags;
5558
5559 ndev = NULL;
5560 memcpy(&temp_dev_no, read_dev_no, 2);
5561 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5562 list_for_each_entry(card, &qeth_card_list.list, list) {
5563 readno = CARD_RDEV_ID(card);
5564 readno += (strlen(readno) - 4);
5565 card_dev_no = simple_strtoul(readno, &endp, 16);
5566 if (card_dev_no == temp_dev_no) {
5567 ndev = card->dev;
5568 break;
5569 }
5570 }
5571 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5572 return ndev;
5573 }
5574
5575 int
5576 qeth_osn_register(unsigned char *read_dev_no,
5577 struct net_device **dev,
5578 int (*assist_cb)(struct net_device *, void *),
5579 int (*data_cb)(struct sk_buff *))
5580 {
5581 struct qeth_card * card;
5582
5583 QETH_DBF_TEXT(trace, 2, "osnreg");
5584 *dev = qeth_netdev_by_devno(read_dev_no);
5585 if (*dev == NULL)
5586 return -ENODEV;
5587 card = (struct qeth_card *)(*dev)->priv;
5588 if (!card)
5589 return -ENODEV;
5590 if ((assist_cb == NULL) || (data_cb == NULL))
5591 return -EINVAL;
5592 card->osn_info.assist_cb = assist_cb;
5593 card->osn_info.data_cb = data_cb;
5594 return 0;
5595 }
5596
5597 void
5598 qeth_osn_deregister(struct net_device * dev)
5599 {
5600 struct qeth_card *card;
5601
5602 QETH_DBF_TEXT(trace, 2, "osndereg");
5603 if (!dev)
5604 return;
5605 card = (struct qeth_card *)dev->priv;
5606 if (!card)
5607 return;
5608 card->osn_info.assist_cb = NULL;
5609 card->osn_info.data_cb = NULL;
5610 return;
5611 }
5612
5613 static void
5614 qeth_delete_mc_addresses(struct qeth_card *card)
5615 {
5616 struct qeth_ipaddr *iptodo;
5617 unsigned long flags;
5618
5619 QETH_DBF_TEXT(trace,4,"delmc");
5620 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5621 if (!iptodo) {
5622 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5623 return;
5624 }
5625 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5626 spin_lock_irqsave(&card->ip_lock, flags);
5627 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5628 kfree(iptodo);
5629 spin_unlock_irqrestore(&card->ip_lock, flags);
5630 }
5631
5632 static void
5633 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5634 {
5635 struct qeth_ipaddr *ipm;
5636 struct ip_mc_list *im4;
5637 char buf[MAX_ADDR_LEN];
5638
5639 QETH_DBF_TEXT(trace,4,"addmc");
5640 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5641 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5642 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5643 if (!ipm)
5644 continue;
5645 ipm->u.a4.addr = im4->multiaddr;
5646 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5647 ipm->is_multicast = 1;
5648 if (!qeth_add_ip(card,ipm))
5649 kfree(ipm);
5650 }
5651 }
5652
5653 static inline void
5654 qeth_add_vlan_mc(struct qeth_card *card)
5655 {
5656 #ifdef CONFIG_QETH_VLAN
5657 struct in_device *in_dev;
5658 struct vlan_group *vg;
5659 int i;
5660
5661 QETH_DBF_TEXT(trace,4,"addmcvl");
5662 if ( ((card->options.layer2 == 0) &&
5663 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5664 (card->vlangrp == NULL) )
5665 return ;
5666
5667 vg = card->vlangrp;
5668 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5669 struct net_device *netdev = vlan_group_get_device(vg, i);
5670 if (netdev == NULL ||
5671 !(netdev->flags & IFF_UP))
5672 continue;
5673 in_dev = in_dev_get(netdev);
5674 if (!in_dev)
5675 continue;
5676 read_lock(&in_dev->mc_list_lock);
5677 qeth_add_mc(card,in_dev);
5678 read_unlock(&in_dev->mc_list_lock);
5679 in_dev_put(in_dev);
5680 }
5681 #endif
5682 }
5683
5684 static void
5685 qeth_add_multicast_ipv4(struct qeth_card *card)
5686 {
5687 struct in_device *in4_dev;
5688
5689 QETH_DBF_TEXT(trace,4,"chkmcv4");
5690 in4_dev = in_dev_get(card->dev);
5691 if (in4_dev == NULL)
5692 return;
5693 read_lock(&in4_dev->mc_list_lock);
5694 qeth_add_mc(card, in4_dev);
5695 qeth_add_vlan_mc(card);
5696 read_unlock(&in4_dev->mc_list_lock);
5697 in_dev_put(in4_dev);
5698 }
5699
5700 static void
5701 qeth_layer2_add_multicast(struct qeth_card *card)
5702 {
5703 struct qeth_ipaddr *ipm;
5704 struct dev_mc_list *dm;
5705
5706 QETH_DBF_TEXT(trace,4,"L2addmc");
5707 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5708 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5709 if (!ipm)
5710 continue;
5711 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5712 ipm->is_multicast = 1;
5713 if (!qeth_add_ip(card, ipm))
5714 kfree(ipm);
5715 }
5716 }
5717
5718 #ifdef CONFIG_QETH_IPV6
5719 static void
5720 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5721 {
5722 struct qeth_ipaddr *ipm;
5723 struct ifmcaddr6 *im6;
5724 char buf[MAX_ADDR_LEN];
5725
5726 QETH_DBF_TEXT(trace,4,"addmc6");
5727 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5728 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5729 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5730 if (!ipm)
5731 continue;
5732 ipm->is_multicast = 1;
5733 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5734 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5735 sizeof(struct in6_addr));
5736 if (!qeth_add_ip(card,ipm))
5737 kfree(ipm);
5738 }
5739 }
5740
5741 static inline void
5742 qeth_add_vlan_mc6(struct qeth_card *card)
5743 {
5744 #ifdef CONFIG_QETH_VLAN
5745 struct inet6_dev *in_dev;
5746 struct vlan_group *vg;
5747 int i;
5748
5749 QETH_DBF_TEXT(trace,4,"admc6vl");
5750 if ( ((card->options.layer2 == 0) &&
5751 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5752 (card->vlangrp == NULL))
5753 return ;
5754
5755 vg = card->vlangrp;
5756 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5757 struct net_device *netdev = vlan_group_get_device(vg, i);
5758 if (netdev == NULL ||
5759 !(netdev->flags & IFF_UP))
5760 continue;
5761 in_dev = in6_dev_get(netdev);
5762 if (!in_dev)
5763 continue;
5764 read_lock(&in_dev->lock);
5765 qeth_add_mc6(card,in_dev);
5766 read_unlock(&in_dev->lock);
5767 in6_dev_put(in_dev);
5768 }
5769 #endif /* CONFIG_QETH_VLAN */
5770 }
5771
5772 static void
5773 qeth_add_multicast_ipv6(struct qeth_card *card)
5774 {
5775 struct inet6_dev *in6_dev;
5776
5777 QETH_DBF_TEXT(trace,4,"chkmcv6");
5778 if (!qeth_is_supported(card, IPA_IPV6))
5779 return ;
5780 in6_dev = in6_dev_get(card->dev);
5781 if (in6_dev == NULL)
5782 return;
5783 read_lock(&in6_dev->lock);
5784 qeth_add_mc6(card, in6_dev);
5785 qeth_add_vlan_mc6(card);
5786 read_unlock(&in6_dev->lock);
5787 in6_dev_put(in6_dev);
5788 }
5789 #endif /* CONFIG_QETH_IPV6 */
5790
5791 static int
5792 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5793 enum qeth_ipa_cmds ipacmd,
5794 int (*reply_cb) (struct qeth_card *,
5795 struct qeth_reply*,
5796 unsigned long))
5797 {
5798 struct qeth_ipa_cmd *cmd;
5799 struct qeth_cmd_buffer *iob;
5800
5801 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5802 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5803 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5804 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5805 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5806 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5807 }
5808
5809 static int
5810 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5811 struct qeth_reply *reply,
5812 unsigned long data)
5813 {
5814 struct qeth_ipa_cmd *cmd;
5815 __u8 *mac;
5816
5817 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5818 cmd = (struct qeth_ipa_cmd *) data;
5819 mac = &cmd->data.setdelmac.mac[0];
5820 /* MAC already registered, needed in couple/uncouple case */
5821 if (cmd->hdr.return_code == 0x2005) {
5822 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5823 "already existing on %s \n",
5824 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5825 QETH_CARD_IFNAME(card));
5826 cmd->hdr.return_code = 0;
5827 }
5828 if (cmd->hdr.return_code)
5829 PRINT_ERR("Could not set group MAC " \
5830 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5831 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5832 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5833 return 0;
5834 }
5835
5836 static int
5837 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5838 {
5839 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5840 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5841 qeth_layer2_send_setgroupmac_cb);
5842 }
5843
5844 static int
5845 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5846 struct qeth_reply *reply,
5847 unsigned long data)
5848 {
5849 struct qeth_ipa_cmd *cmd;
5850 __u8 *mac;
5851
5852 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5853 cmd = (struct qeth_ipa_cmd *) data;
5854 mac = &cmd->data.setdelmac.mac[0];
5855 if (cmd->hdr.return_code)
5856 PRINT_ERR("Could not delete group MAC " \
5857 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5858 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5859 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5860 return 0;
5861 }
5862
5863 static int
5864 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5865 {
5866 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5867 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5868 qeth_layer2_send_delgroupmac_cb);
5869 }
5870
5871 static int
5872 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5873 struct qeth_reply *reply,
5874 unsigned long data)
5875 {
5876 struct qeth_ipa_cmd *cmd;
5877
5878 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5879 cmd = (struct qeth_ipa_cmd *) data;
5880 if (cmd->hdr.return_code) {
5881 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5882 PRINT_WARN("Error in registering MAC address on " \
5883 "device %s: x%x\n", CARD_BUS_ID(card),
5884 cmd->hdr.return_code);
5885 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5886 cmd->hdr.return_code = -EIO;
5887 } else {
5888 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5889 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5890 OSA_ADDR_LEN);
5891 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5892 "successfully registered on device %s\n",
5893 card->dev->dev_addr[0], card->dev->dev_addr[1],
5894 card->dev->dev_addr[2], card->dev->dev_addr[3],
5895 card->dev->dev_addr[4], card->dev->dev_addr[5],
5896 card->dev->name);
5897 }
5898 return 0;
5899 }
5900
5901 static int
5902 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5903 {
5904 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5905 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5906 qeth_layer2_send_setmac_cb);
5907 }
5908
5909 static int
5910 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5911 struct qeth_reply *reply,
5912 unsigned long data)
5913 {
5914 struct qeth_ipa_cmd *cmd;
5915
5916 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5917 cmd = (struct qeth_ipa_cmd *) data;
5918 if (cmd->hdr.return_code) {
5919 PRINT_WARN("Error in deregistering MAC address on " \
5920 "device %s: x%x\n", CARD_BUS_ID(card),
5921 cmd->hdr.return_code);
5922 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5923 cmd->hdr.return_code = -EIO;
5924 return 0;
5925 }
5926 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5927
5928 return 0;
5929 }
5930 static int
5931 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5932 {
5933 QETH_DBF_TEXT(trace, 2, "L2Delmac");
5934 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
5935 return 0;
5936 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5937 qeth_layer2_send_delmac_cb);
5938 }
5939
5940 static int
5941 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5942 {
5943 struct sockaddr *addr = p;
5944 struct qeth_card *card;
5945 int rc = 0;
5946
5947 QETH_DBF_TEXT(trace, 3, "setmac");
5948
5949 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5950 QETH_DBF_TEXT(trace, 3, "setmcINV");
5951 return -EOPNOTSUPP;
5952 }
5953 card = (struct qeth_card *) dev->priv;
5954
5955 if (!card->options.layer2) {
5956 PRINT_WARN("Setting MAC address on %s is not supported "
5957 "in Layer 3 mode.\n", dev->name);
5958 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5959 return -EOPNOTSUPP;
5960 }
5961 if (card->info.type == QETH_CARD_TYPE_OSN) {
5962 PRINT_WARN("Setting MAC address on %s is not supported.\n",
5963 dev->name);
5964 QETH_DBF_TEXT(trace, 3, "setmcOSN");
5965 return -EOPNOTSUPP;
5966 }
5967 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5968 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5969 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5970 if (!rc)
5971 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5972 return rc;
5973 }
5974
5975 static void
5976 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5977 __u8 command, enum qeth_prot_versions prot)
5978 {
5979 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5980 cmd->hdr.command = command;
5981 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5982 cmd->hdr.seqno = card->seqno.ipa;
5983 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5984 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5985 if (card->options.layer2)
5986 cmd->hdr.prim_version_no = 2;
5987 else
5988 cmd->hdr.prim_version_no = 1;
5989 cmd->hdr.param_count = 1;
5990 cmd->hdr.prot_version = prot;
5991 cmd->hdr.ipa_supported = 0;
5992 cmd->hdr.ipa_enabled = 0;
5993 }
5994
5995 static struct qeth_cmd_buffer *
5996 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5997 enum qeth_prot_versions prot)
5998 {
5999 struct qeth_cmd_buffer *iob;
6000 struct qeth_ipa_cmd *cmd;
6001
6002 iob = qeth_wait_for_buffer(&card->write);
6003 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6004 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6005
6006 return iob;
6007 }
6008
6009 static int
6010 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6011 {
6012 int rc;
6013 struct qeth_cmd_buffer *iob;
6014 struct qeth_ipa_cmd *cmd;
6015
6016 QETH_DBF_TEXT(trace,4,"setdelmc");
6017
6018 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6019 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6020 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6021 if (addr->proto == QETH_PROT_IPV6)
6022 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6023 sizeof(struct in6_addr));
6024 else
6025 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6026
6027 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6028
6029 return rc;
6030 }
6031 static void
6032 qeth_fill_netmask(u8 *netmask, unsigned int len)
6033 {
6034 int i,j;
6035 for (i=0;i<16;i++) {
6036 j=(len)-(i*8);
6037 if (j >= 8)
6038 netmask[i] = 0xff;
6039 else if (j > 0)
6040 netmask[i] = (u8)(0xFF00>>j);
6041 else
6042 netmask[i] = 0;
6043 }
6044 }
6045
6046 static int
6047 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6048 int ipacmd, unsigned int flags)
6049 {
6050 int rc;
6051 struct qeth_cmd_buffer *iob;
6052 struct qeth_ipa_cmd *cmd;
6053 __u8 netmask[16];
6054
6055 QETH_DBF_TEXT(trace,4,"setdelip");
6056 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6057
6058 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6059 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6060 if (addr->proto == QETH_PROT_IPV6) {
6061 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6062 sizeof(struct in6_addr));
6063 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6064 memcpy(cmd->data.setdelip6.mask, netmask,
6065 sizeof(struct in6_addr));
6066 cmd->data.setdelip6.flags = flags;
6067 } else {
6068 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6069 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6070 cmd->data.setdelip4.flags = flags;
6071 }
6072
6073 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6074
6075 return rc;
6076 }
6077
6078 static int
6079 qeth_layer2_register_addr_entry(struct qeth_card *card,
6080 struct qeth_ipaddr *addr)
6081 {
6082 if (!addr->is_multicast)
6083 return 0;
6084 QETH_DBF_TEXT(trace, 2, "setgmac");
6085 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6086 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6087 }
6088
6089 static int
6090 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6091 struct qeth_ipaddr *addr)
6092 {
6093 if (!addr->is_multicast)
6094 return 0;
6095 QETH_DBF_TEXT(trace, 2, "delgmac");
6096 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6097 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6098 }
6099
6100 static int
6101 qeth_layer3_register_addr_entry(struct qeth_card *card,
6102 struct qeth_ipaddr *addr)
6103 {
6104 char buf[50];
6105 int rc;
6106 int cnt = 3;
6107
6108 if (addr->proto == QETH_PROT_IPV4) {
6109 QETH_DBF_TEXT(trace, 2,"setaddr4");
6110 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6111 } else if (addr->proto == QETH_PROT_IPV6) {
6112 QETH_DBF_TEXT(trace, 2, "setaddr6");
6113 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6114 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6115 } else {
6116 QETH_DBF_TEXT(trace, 2, "setaddr?");
6117 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6118 }
6119 do {
6120 if (addr->is_multicast)
6121 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6122 else
6123 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6124 addr->set_flags);
6125 if (rc)
6126 QETH_DBF_TEXT(trace, 2, "failed");
6127 } while ((--cnt > 0) && rc);
6128 if (rc){
6129 QETH_DBF_TEXT(trace, 2, "FAILED");
6130 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6131 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6132 buf, rc, rc);
6133 }
6134 return rc;
6135 }
6136
6137 static int
6138 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6139 struct qeth_ipaddr *addr)
6140 {
6141 //char buf[50];
6142 int rc;
6143
6144 if (addr->proto == QETH_PROT_IPV4) {
6145 QETH_DBF_TEXT(trace, 2,"deladdr4");
6146 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6147 } else if (addr->proto == QETH_PROT_IPV6) {
6148 QETH_DBF_TEXT(trace, 2, "deladdr6");
6149 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6150 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6151 } else {
6152 QETH_DBF_TEXT(trace, 2, "deladdr?");
6153 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6154 }
6155 if (addr->is_multicast)
6156 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6157 else
6158 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6159 addr->del_flags);
6160 if (rc) {
6161 QETH_DBF_TEXT(trace, 2, "failed");
6162 /* TODO: re-activate this warning as soon as we have a
6163 * clean mirco code
6164 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6165 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6166 buf, rc);
6167 */
6168 }
6169 return rc;
6170 }
6171
6172 static int
6173 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6174 {
6175 if (card->options.layer2)
6176 return qeth_layer2_register_addr_entry(card, addr);
6177
6178 return qeth_layer3_register_addr_entry(card, addr);
6179 }
6180
6181 static int
6182 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6183 {
6184 if (card->options.layer2)
6185 return qeth_layer2_deregister_addr_entry(card, addr);
6186
6187 return qeth_layer3_deregister_addr_entry(card, addr);
6188 }
6189
6190 static u32
6191 qeth_ethtool_get_tx_csum(struct net_device *dev)
6192 {
6193 /* We may need to say that we support tx csum offload if
6194 * we do EDDP or TSO. There are discussions going on to
6195 * enforce rules in the stack and in ethtool that make
6196 * SG and TSO depend on HW_CSUM. At the moment there are
6197 * no such rules....
6198 * If we say yes here, we have to checksum outbound packets
6199 * any time. */
6200 return 0;
6201 }
6202
6203 static int
6204 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6205 {
6206 return -EINVAL;
6207 }
6208
6209 static u32
6210 qeth_ethtool_get_rx_csum(struct net_device *dev)
6211 {
6212 struct qeth_card *card = (struct qeth_card *)dev->priv;
6213
6214 return (card->options.checksum_type == HW_CHECKSUMMING);
6215 }
6216
6217 static int
6218 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6219 {
6220 struct qeth_card *card = (struct qeth_card *)dev->priv;
6221
6222 if ((card->state != CARD_STATE_DOWN) &&
6223 (card->state != CARD_STATE_RECOVER))
6224 return -EPERM;
6225 if (data)
6226 card->options.checksum_type = HW_CHECKSUMMING;
6227 else
6228 card->options.checksum_type = SW_CHECKSUMMING;
6229 return 0;
6230 }
6231
6232 static u32
6233 qeth_ethtool_get_sg(struct net_device *dev)
6234 {
6235 struct qeth_card *card = (struct qeth_card *)dev->priv;
6236
6237 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6238 (dev->features & NETIF_F_SG));
6239 }
6240
6241 static int
6242 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6243 {
6244 struct qeth_card *card = (struct qeth_card *)dev->priv;
6245
6246 if (data) {
6247 if (card->options.large_send != QETH_LARGE_SEND_NO)
6248 dev->features |= NETIF_F_SG;
6249 else {
6250 dev->features &= ~NETIF_F_SG;
6251 return -EINVAL;
6252 }
6253 } else
6254 dev->features &= ~NETIF_F_SG;
6255 return 0;
6256 }
6257
6258 static u32
6259 qeth_ethtool_get_tso(struct net_device *dev)
6260 {
6261 struct qeth_card *card = (struct qeth_card *)dev->priv;
6262
6263 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6264 (dev->features & NETIF_F_TSO));
6265 }
6266
6267 static int
6268 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6269 {
6270 struct qeth_card *card = (struct qeth_card *)dev->priv;
6271
6272 if (data) {
6273 if (card->options.large_send != QETH_LARGE_SEND_NO)
6274 dev->features |= NETIF_F_TSO;
6275 else {
6276 dev->features &= ~NETIF_F_TSO;
6277 return -EINVAL;
6278 }
6279 } else
6280 dev->features &= ~NETIF_F_TSO;
6281 return 0;
6282 }
6283
6284 static struct ethtool_ops qeth_ethtool_ops = {
6285 .get_tx_csum = qeth_ethtool_get_tx_csum,
6286 .set_tx_csum = qeth_ethtool_set_tx_csum,
6287 .get_rx_csum = qeth_ethtool_get_rx_csum,
6288 .set_rx_csum = qeth_ethtool_set_rx_csum,
6289 .get_sg = qeth_ethtool_get_sg,
6290 .set_sg = qeth_ethtool_set_sg,
6291 .get_tso = qeth_ethtool_get_tso,
6292 .set_tso = qeth_ethtool_set_tso,
6293 };
6294
6295 static int
6296 qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6297 {
6298 struct qeth_card *card;
6299 struct ethhdr *eth;
6300
6301 card = qeth_get_card_from_dev(skb->dev);
6302 if (card->options.layer2)
6303 goto haveheader;
6304 #ifdef CONFIG_QETH_IPV6
6305 /* cause of the manipulated arp constructor and the ARP
6306 flag for OSAE devices we have some nasty exceptions */
6307 if (card->info.type == QETH_CARD_TYPE_OSAE) {
6308 if (!card->options.fake_ll) {
6309 if ((skb->pkt_type==PACKET_OUTGOING) &&
6310 (skb->protocol==ETH_P_IPV6))
6311 goto haveheader;
6312 else
6313 return 0;
6314 } else {
6315 if ((skb->pkt_type==PACKET_OUTGOING) &&
6316 (skb->protocol==ETH_P_IP))
6317 return 0;
6318 else
6319 goto haveheader;
6320 }
6321 }
6322 #endif
6323 if (!card->options.fake_ll)
6324 return 0;
6325 haveheader:
6326 eth = eth_hdr(skb);
6327 memcpy(haddr, eth->h_source, ETH_ALEN);
6328 return ETH_ALEN;
6329 }
6330
6331 static int
6332 qeth_netdev_init(struct net_device *dev)
6333 {
6334 struct qeth_card *card;
6335
6336 card = (struct qeth_card *) dev->priv;
6337
6338 QETH_DBF_TEXT(trace,3,"initdev");
6339
6340 dev->tx_timeout = &qeth_tx_timeout;
6341 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6342 dev->open = qeth_open;
6343 dev->stop = qeth_stop;
6344 dev->hard_start_xmit = qeth_hard_start_xmit;
6345 dev->do_ioctl = qeth_do_ioctl;
6346 dev->get_stats = qeth_get_stats;
6347 dev->change_mtu = qeth_change_mtu;
6348 dev->neigh_setup = qeth_neigh_setup;
6349 dev->set_multicast_list = qeth_set_multicast_list;
6350 #ifdef CONFIG_QETH_VLAN
6351 dev->vlan_rx_register = qeth_vlan_rx_register;
6352 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6353 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6354 #endif
6355 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6356 dev->rebuild_header = NULL;
6357 dev->hard_header = NULL;
6358 dev->header_cache_update = NULL;
6359 dev->hard_header_cache = NULL;
6360 }
6361 #ifdef CONFIG_QETH_IPV6
6362 /*IPv6 address autoconfiguration stuff*/
6363 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6364 card->dev->dev_id = card->info.unique_id & 0xffff;
6365 #endif
6366 if (card->options.fake_ll &&
6367 (qeth_get_netdev_flags(card) & IFF_NOARP))
6368 dev->hard_header = qeth_fake_header;
6369 if (dev->type == ARPHRD_IEEE802_TR)
6370 dev->hard_header_parse = NULL;
6371 else
6372 dev->hard_header_parse = qeth_hard_header_parse;
6373 dev->set_mac_address = qeth_layer2_set_mac_address;
6374 dev->flags |= qeth_get_netdev_flags(card);
6375 if ((card->options.fake_broadcast) ||
6376 (card->info.broadcast_capable))
6377 dev->flags |= IFF_BROADCAST;
6378 dev->hard_header_len =
6379 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6380 dev->addr_len = OSA_ADDR_LEN;
6381 dev->mtu = card->info.initial_mtu;
6382 if (card->info.type != QETH_CARD_TYPE_OSN)
6383 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6384 SET_MODULE_OWNER(dev);
6385 return 0;
6386 }
6387
6388 static void
6389 qeth_init_func_level(struct qeth_card *card)
6390 {
6391 if (card->ipato.enabled) {
6392 if (card->info.type == QETH_CARD_TYPE_IQD)
6393 card->info.func_level =
6394 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6395 else
6396 card->info.func_level =
6397 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6398 } else {
6399 if (card->info.type == QETH_CARD_TYPE_IQD)
6400 /*FIXME:why do we have same values for dis and ena for osae??? */
6401 card->info.func_level =
6402 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6403 else
6404 card->info.func_level =
6405 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6406 }
6407 }
6408
6409 /**
6410 * hardsetup card, initialize MPC and QDIO stuff
6411 */
6412 static int
6413 qeth_hardsetup_card(struct qeth_card *card)
6414 {
6415 int retries = 3;
6416 int rc;
6417
6418 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6419
6420 retry:
6421 if (retries < 3){
6422 PRINT_WARN("Retrying to do IDX activates.\n");
6423 ccw_device_set_offline(CARD_DDEV(card));
6424 ccw_device_set_offline(CARD_WDEV(card));
6425 ccw_device_set_offline(CARD_RDEV(card));
6426 ccw_device_set_online(CARD_RDEV(card));
6427 ccw_device_set_online(CARD_WDEV(card));
6428 ccw_device_set_online(CARD_DDEV(card));
6429 }
6430 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6431 if (rc == -ERESTARTSYS) {
6432 QETH_DBF_TEXT(setup, 2, "break1");
6433 return rc;
6434 } else if (rc) {
6435 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6436 if (--retries < 0)
6437 goto out;
6438 else
6439 goto retry;
6440 }
6441 if ((rc = qeth_get_unitaddr(card))){
6442 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6443 return rc;
6444 }
6445 qeth_init_tokens(card);
6446 qeth_init_func_level(card);
6447 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6448 if (rc == -ERESTARTSYS) {
6449 QETH_DBF_TEXT(setup, 2, "break2");
6450 return rc;
6451 } else if (rc) {
6452 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6453 if (--retries < 0)
6454 goto out;
6455 else
6456 goto retry;
6457 }
6458 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6459 if (rc == -ERESTARTSYS) {
6460 QETH_DBF_TEXT(setup, 2, "break3");
6461 return rc;
6462 } else if (rc) {
6463 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6464 if (--retries < 0)
6465 goto out;
6466 else
6467 goto retry;
6468 }
6469 if ((rc = qeth_mpc_initialize(card))){
6470 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6471 goto out;
6472 }
6473 /*network device will be recovered*/
6474 if (card->dev) {
6475 card->dev->hard_header = card->orig_hard_header;
6476 if (card->options.fake_ll &&
6477 (qeth_get_netdev_flags(card) & IFF_NOARP))
6478 card->dev->hard_header = qeth_fake_header;
6479 return 0;
6480 }
6481 /* at first set_online allocate netdev */
6482 card->dev = qeth_get_netdevice(card->info.type,
6483 card->info.link_type);
6484 if (!card->dev){
6485 qeth_qdio_clear_card(card, card->info.type !=
6486 QETH_CARD_TYPE_IQD);
6487 rc = -ENODEV;
6488 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6489 goto out;
6490 }
6491 card->dev->priv = card;
6492 card->orig_hard_header = card->dev->hard_header;
6493 card->dev->type = qeth_get_arphdr_type(card->info.type,
6494 card->info.link_type);
6495 card->dev->init = qeth_netdev_init;
6496 return 0;
6497 out:
6498 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6499 return rc;
6500 }
6501
6502 static int
6503 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6504 unsigned long data)
6505 {
6506 struct qeth_ipa_cmd *cmd;
6507
6508 QETH_DBF_TEXT(trace,4,"defadpcb");
6509
6510 cmd = (struct qeth_ipa_cmd *) data;
6511 if (cmd->hdr.return_code == 0){
6512 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6513 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6514 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6515 #ifdef CONFIG_QETH_IPV6
6516 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6517 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6518 #endif
6519 }
6520 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6521 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6522 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6523 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6524 }
6525 return 0;
6526 }
6527
6528 static int
6529 qeth_default_setadapterparms_cb(struct qeth_card *card,
6530 struct qeth_reply *reply,
6531 unsigned long data)
6532 {
6533 struct qeth_ipa_cmd *cmd;
6534
6535 QETH_DBF_TEXT(trace,4,"defadpcb");
6536
6537 cmd = (struct qeth_ipa_cmd *) data;
6538 if (cmd->hdr.return_code == 0)
6539 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6540 return 0;
6541 }
6542
6543
6544
6545 static int
6546 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6547 unsigned long data)
6548 {
6549 struct qeth_ipa_cmd *cmd;
6550
6551 QETH_DBF_TEXT(trace,3,"quyadpcb");
6552
6553 cmd = (struct qeth_ipa_cmd *) data;
6554 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6555 card->info.link_type =
6556 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6557 card->options.adp.supported_funcs =
6558 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6559 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6560 }
6561
6562 static int
6563 qeth_query_setadapterparms(struct qeth_card *card)
6564 {
6565 int rc;
6566 struct qeth_cmd_buffer *iob;
6567
6568 QETH_DBF_TEXT(trace,3,"queryadp");
6569 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6570 sizeof(struct qeth_ipacmd_setadpparms));
6571 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6572 return rc;
6573 }
6574
6575 static int
6576 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6577 struct qeth_reply *reply,
6578 unsigned long data)
6579 {
6580 struct qeth_ipa_cmd *cmd;
6581
6582 QETH_DBF_TEXT(trace,4,"chgmaccb");
6583
6584 cmd = (struct qeth_ipa_cmd *) data;
6585 if (!card->options.layer2 || card->info.guestlan ||
6586 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6587 memcpy(card->dev->dev_addr,
6588 &cmd->data.setadapterparms.data.change_addr.addr,
6589 OSA_ADDR_LEN);
6590 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6591 }
6592 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6593 return 0;
6594 }
6595
6596 static int
6597 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6598 {
6599 int rc;
6600 struct qeth_cmd_buffer *iob;
6601 struct qeth_ipa_cmd *cmd;
6602
6603 QETH_DBF_TEXT(trace,4,"chgmac");
6604
6605 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6606 sizeof(struct qeth_ipacmd_setadpparms));
6607 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6608 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6609 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6610 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6611 card->dev->dev_addr, OSA_ADDR_LEN);
6612 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6613 NULL);
6614 return rc;
6615 }
6616
6617 static int
6618 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6619 {
6620 int rc;
6621 struct qeth_cmd_buffer *iob;
6622 struct qeth_ipa_cmd *cmd;
6623
6624 QETH_DBF_TEXT(trace,4,"adpmode");
6625
6626 iob = qeth_get_adapter_cmd(card, command,
6627 sizeof(struct qeth_ipacmd_setadpparms));
6628 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6629 cmd->data.setadapterparms.data.mode = mode;
6630 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6631 NULL);
6632 return rc;
6633 }
6634
6635 static int
6636 qeth_setadapter_hstr(struct qeth_card *card)
6637 {
6638 int rc;
6639
6640 QETH_DBF_TEXT(trace,4,"adphstr");
6641
6642 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6643 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6644 card->options.broadcast_mode);
6645 if (rc)
6646 PRINT_WARN("couldn't set broadcast mode on "
6647 "device %s: x%x\n",
6648 CARD_BUS_ID(card), rc);
6649 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6650 card->options.macaddr_mode);
6651 if (rc)
6652 PRINT_WARN("couldn't set macaddr mode on "
6653 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6654 return rc;
6655 }
6656 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6657 PRINT_WARN("set adapter parameters not available "
6658 "to set broadcast mode, using ALLRINGS "
6659 "on device %s:\n", CARD_BUS_ID(card));
6660 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6661 PRINT_WARN("set adapter parameters not available "
6662 "to set macaddr mode, using NONCANONICAL "
6663 "on device %s:\n", CARD_BUS_ID(card));
6664 return 0;
6665 }
6666
6667 static int
6668 qeth_setadapter_parms(struct qeth_card *card)
6669 {
6670 int rc;
6671
6672 QETH_DBF_TEXT(setup, 2, "setadprm");
6673
6674 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6675 PRINT_WARN("set adapter parameters not supported "
6676 "on device %s.\n",
6677 CARD_BUS_ID(card));
6678 QETH_DBF_TEXT(setup, 2, " notsupp");
6679 return 0;
6680 }
6681 rc = qeth_query_setadapterparms(card);
6682 if (rc) {
6683 PRINT_WARN("couldn't set adapter parameters on device %s: "
6684 "x%x\n", CARD_BUS_ID(card), rc);
6685 return rc;
6686 }
6687 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6688 rc = qeth_setadpparms_change_macaddr(card);
6689 if (rc)
6690 PRINT_WARN("couldn't get MAC address on "
6691 "device %s: x%x\n",
6692 CARD_BUS_ID(card), rc);
6693 }
6694
6695 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6696 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6697 rc = qeth_setadapter_hstr(card);
6698
6699 return rc;
6700 }
6701
6702 static int
6703 qeth_layer2_initialize(struct qeth_card *card)
6704 {
6705 int rc = 0;
6706
6707
6708 QETH_DBF_TEXT(setup, 2, "doL2init");
6709 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6710
6711 rc = qeth_query_setadapterparms(card);
6712 if (rc) {
6713 PRINT_WARN("could not query adapter parameters on device %s: "
6714 "x%x\n", CARD_BUS_ID(card), rc);
6715 }
6716
6717 rc = qeth_setadpparms_change_macaddr(card);
6718 if (rc) {
6719 PRINT_WARN("couldn't get MAC address on "
6720 "device %s: x%x\n",
6721 CARD_BUS_ID(card), rc);
6722 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6723 return rc;
6724 }
6725 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6726
6727 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6728 if (rc)
6729 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6730 return 0;
6731 }
6732
6733
6734 static int
6735 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6736 enum qeth_prot_versions prot)
6737 {
6738 int rc;
6739 struct qeth_cmd_buffer *iob;
6740
6741 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6742 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6743
6744 return rc;
6745 }
6746
6747 static int
6748 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6749 {
6750 int rc;
6751
6752 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6753
6754 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6755 return rc;
6756 }
6757
6758 static int
6759 qeth_send_stoplan(struct qeth_card *card)
6760 {
6761 int rc = 0;
6762
6763 /*
6764 * TODO: according to the IPA format document page 14,
6765 * TCP/IP (we!) never issue a STOPLAN
6766 * is this right ?!?
6767 */
6768 QETH_DBF_TEXT(trace, 2, "stoplan");
6769
6770 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6771 return rc;
6772 }
6773
6774 static int
6775 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6776 unsigned long data)
6777 {
6778 struct qeth_ipa_cmd *cmd;
6779
6780 QETH_DBF_TEXT(setup, 2, "qipasscb");
6781
6782 cmd = (struct qeth_ipa_cmd *) data;
6783 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6784 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6785 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6786 /* Disable IPV6 support hard coded for Hipersockets */
6787 if(card->info.type == QETH_CARD_TYPE_IQD)
6788 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6789 } else {
6790 #ifdef CONFIG_QETH_IPV6
6791 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6792 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6793 #endif
6794 }
6795 QETH_DBF_TEXT(setup, 2, "suppenbl");
6796 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6797 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6798 return 0;
6799 }
6800
6801 static int
6802 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6803 {
6804 int rc;
6805 struct qeth_cmd_buffer *iob;
6806
6807 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6808 if (card->options.layer2) {
6809 QETH_DBF_TEXT(setup, 2, "noprmly2");
6810 return -EPERM;
6811 }
6812
6813 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6814 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6815 return rc;
6816 }
6817
6818 static struct qeth_cmd_buffer *
6819 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6820 __u16 cmd_code, __u16 len,
6821 enum qeth_prot_versions prot)
6822 {
6823 struct qeth_cmd_buffer *iob;
6824 struct qeth_ipa_cmd *cmd;
6825
6826 QETH_DBF_TEXT(trace,4,"getasscm");
6827 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6828
6829 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6830 cmd->data.setassparms.hdr.assist_no = ipa_func;
6831 cmd->data.setassparms.hdr.length = 8 + len;
6832 cmd->data.setassparms.hdr.command_code = cmd_code;
6833 cmd->data.setassparms.hdr.return_code = 0;
6834 cmd->data.setassparms.hdr.seq_no = 0;
6835
6836 return iob;
6837 }
6838
6839 static int
6840 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6841 __u16 len, long data,
6842 int (*reply_cb)
6843 (struct qeth_card *,struct qeth_reply *,unsigned long),
6844 void *reply_param)
6845 {
6846 int rc;
6847 struct qeth_ipa_cmd *cmd;
6848
6849 QETH_DBF_TEXT(trace,4,"sendassp");
6850
6851 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6852 if (len <= sizeof(__u32))
6853 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6854 else /* (len > sizeof(__u32)) */
6855 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6856
6857 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6858 return rc;
6859 }
6860
6861 #ifdef CONFIG_QETH_IPV6
6862 static int
6863 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6864 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6865
6866 {
6867 int rc;
6868 struct qeth_cmd_buffer *iob;
6869
6870 QETH_DBF_TEXT(trace,4,"simassp6");
6871 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6872 0, QETH_PROT_IPV6);
6873 rc = qeth_send_setassparms(card, iob, 0, 0,
6874 qeth_default_setassparms_cb, NULL);
6875 return rc;
6876 }
6877 #endif
6878
6879 static int
6880 qeth_send_simple_setassparms(struct qeth_card *card,
6881 enum qeth_ipa_funcs ipa_func,
6882 __u16 cmd_code, long data)
6883 {
6884 int rc;
6885 int length = 0;
6886 struct qeth_cmd_buffer *iob;
6887
6888 QETH_DBF_TEXT(trace,4,"simassp4");
6889 if (data)
6890 length = sizeof(__u32);
6891 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6892 length, QETH_PROT_IPV4);
6893 rc = qeth_send_setassparms(card, iob, length, data,
6894 qeth_default_setassparms_cb, NULL);
6895 return rc;
6896 }
6897
6898 static int
6899 qeth_start_ipa_arp_processing(struct qeth_card *card)
6900 {
6901 int rc;
6902
6903 QETH_DBF_TEXT(trace,3,"ipaarp");
6904
6905 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6906 PRINT_WARN("ARP processing not supported "
6907 "on %s!\n", QETH_CARD_IFNAME(card));
6908 return 0;
6909 }
6910 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6911 IPA_CMD_ASS_START, 0);
6912 if (rc) {
6913 PRINT_WARN("Could not start ARP processing "
6914 "assist on %s: 0x%x\n",
6915 QETH_CARD_IFNAME(card), rc);
6916 }
6917 return rc;
6918 }
6919
6920 static int
6921 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6922 {
6923 int rc;
6924
6925 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6926
6927 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6928 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6929 QETH_CARD_IFNAME(card));
6930 return -EOPNOTSUPP;
6931 }
6932
6933 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6934 IPA_CMD_ASS_START, 0);
6935 if (rc) {
6936 PRINT_WARN("Could not start Hardware IP fragmentation "
6937 "assist on %s: 0x%x\n",
6938 QETH_CARD_IFNAME(card), rc);
6939 } else
6940 PRINT_INFO("Hardware IP fragmentation enabled \n");
6941 return rc;
6942 }
6943
6944 static int
6945 qeth_start_ipa_source_mac(struct qeth_card *card)
6946 {
6947 int rc;
6948
6949 QETH_DBF_TEXT(trace,3,"stsrcmac");
6950
6951 if (!card->options.fake_ll)
6952 return -EOPNOTSUPP;
6953
6954 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6955 PRINT_INFO("Inbound source address not "
6956 "supported on %s\n", QETH_CARD_IFNAME(card));
6957 return -EOPNOTSUPP;
6958 }
6959
6960 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6961 IPA_CMD_ASS_START, 0);
6962 if (rc)
6963 PRINT_WARN("Could not start inbound source "
6964 "assist on %s: 0x%x\n",
6965 QETH_CARD_IFNAME(card), rc);
6966 return rc;
6967 }
6968
6969 static int
6970 qeth_start_ipa_vlan(struct qeth_card *card)
6971 {
6972 int rc = 0;
6973
6974 QETH_DBF_TEXT(trace,3,"strtvlan");
6975
6976 #ifdef CONFIG_QETH_VLAN
6977 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6978 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6979 return -EOPNOTSUPP;
6980 }
6981
6982 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6983 IPA_CMD_ASS_START,0);
6984 if (rc) {
6985 PRINT_WARN("Could not start vlan "
6986 "assist on %s: 0x%x\n",
6987 QETH_CARD_IFNAME(card), rc);
6988 } else {
6989 PRINT_INFO("VLAN enabled \n");
6990 card->dev->features |=
6991 NETIF_F_HW_VLAN_FILTER |
6992 NETIF_F_HW_VLAN_TX |
6993 NETIF_F_HW_VLAN_RX;
6994 }
6995 #endif /* QETH_VLAN */
6996 return rc;
6997 }
6998
6999 static int
7000 qeth_start_ipa_multicast(struct qeth_card *card)
7001 {
7002 int rc;
7003
7004 QETH_DBF_TEXT(trace,3,"stmcast");
7005
7006 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7007 PRINT_WARN("Multicast not supported on %s\n",
7008 QETH_CARD_IFNAME(card));
7009 return -EOPNOTSUPP;
7010 }
7011
7012 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7013 IPA_CMD_ASS_START,0);
7014 if (rc) {
7015 PRINT_WARN("Could not start multicast "
7016 "assist on %s: rc=%i\n",
7017 QETH_CARD_IFNAME(card), rc);
7018 } else {
7019 PRINT_INFO("Multicast enabled\n");
7020 card->dev->flags |= IFF_MULTICAST;
7021 }
7022 return rc;
7023 }
7024
7025 #ifdef CONFIG_QETH_IPV6
7026 static int
7027 qeth_softsetup_ipv6(struct qeth_card *card)
7028 {
7029 int rc;
7030
7031 QETH_DBF_TEXT(trace,3,"softipv6");
7032
7033 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7034 if (rc) {
7035 PRINT_ERR("IPv6 startlan failed on %s\n",
7036 QETH_CARD_IFNAME(card));
7037 return rc;
7038 }
7039 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7040 if (rc) {
7041 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7042 QETH_CARD_IFNAME(card));
7043 return rc;
7044 }
7045 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7046 IPA_CMD_ASS_START, 3);
7047 if (rc) {
7048 PRINT_WARN("IPv6 start assist (version 4) failed "
7049 "on %s: 0x%x\n",
7050 QETH_CARD_IFNAME(card), rc);
7051 return rc;
7052 }
7053 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7054 IPA_CMD_ASS_START);
7055 if (rc) {
7056 PRINT_WARN("IPV6 start assist (version 6) failed "
7057 "on %s: 0x%x\n",
7058 QETH_CARD_IFNAME(card), rc);
7059 return rc;
7060 }
7061 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7062 IPA_CMD_ASS_START);
7063 if (rc) {
7064 PRINT_WARN("Could not enable passthrough "
7065 "on %s: 0x%x\n",
7066 QETH_CARD_IFNAME(card), rc);
7067 return rc;
7068 }
7069 PRINT_INFO("IPV6 enabled \n");
7070 return 0;
7071 }
7072
7073 #endif
7074
7075 static int
7076 qeth_start_ipa_ipv6(struct qeth_card *card)
7077 {
7078 int rc = 0;
7079 #ifdef CONFIG_QETH_IPV6
7080 QETH_DBF_TEXT(trace,3,"strtipv6");
7081
7082 if (!qeth_is_supported(card, IPA_IPV6)) {
7083 PRINT_WARN("IPv6 not supported on %s\n",
7084 QETH_CARD_IFNAME(card));
7085 return 0;
7086 }
7087 rc = qeth_softsetup_ipv6(card);
7088 #endif
7089 return rc ;
7090 }
7091
7092 static int
7093 qeth_start_ipa_broadcast(struct qeth_card *card)
7094 {
7095 int rc;
7096
7097 QETH_DBF_TEXT(trace,3,"stbrdcst");
7098 card->info.broadcast_capable = 0;
7099 if (!qeth_is_supported(card, IPA_FILTERING)) {
7100 PRINT_WARN("Broadcast not supported on %s\n",
7101 QETH_CARD_IFNAME(card));
7102 rc = -EOPNOTSUPP;
7103 goto out;
7104 }
7105 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7106 IPA_CMD_ASS_START, 0);
7107 if (rc) {
7108 PRINT_WARN("Could not enable broadcasting filtering "
7109 "on %s: 0x%x\n",
7110 QETH_CARD_IFNAME(card), rc);
7111 goto out;
7112 }
7113
7114 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7115 IPA_CMD_ASS_CONFIGURE, 1);
7116 if (rc) {
7117 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7118 QETH_CARD_IFNAME(card), rc);
7119 goto out;
7120 }
7121 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7122 PRINT_INFO("Broadcast enabled \n");
7123 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7124 IPA_CMD_ASS_ENABLE, 1);
7125 if (rc) {
7126 PRINT_WARN("Could not set up broadcast echo filtering on "
7127 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7128 goto out;
7129 }
7130 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7131 out:
7132 if (card->info.broadcast_capable)
7133 card->dev->flags |= IFF_BROADCAST;
7134 else
7135 card->dev->flags &= ~IFF_BROADCAST;
7136 return rc;
7137 }
7138
7139 static int
7140 qeth_send_checksum_command(struct qeth_card *card)
7141 {
7142 int rc;
7143
7144 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7145 IPA_CMD_ASS_START, 0);
7146 if (rc) {
7147 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7148 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7149 QETH_CARD_IFNAME(card), rc);
7150 return rc;
7151 }
7152 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7153 IPA_CMD_ASS_ENABLE,
7154 card->info.csum_mask);
7155 if (rc) {
7156 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7157 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7158 QETH_CARD_IFNAME(card), rc);
7159 return rc;
7160 }
7161 return 0;
7162 }
7163
7164 static int
7165 qeth_start_ipa_checksum(struct qeth_card *card)
7166 {
7167 int rc = 0;
7168
7169 QETH_DBF_TEXT(trace,3,"strtcsum");
7170
7171 if (card->options.checksum_type == NO_CHECKSUMMING) {
7172 PRINT_WARN("Using no checksumming on %s.\n",
7173 QETH_CARD_IFNAME(card));
7174 return 0;
7175 }
7176 if (card->options.checksum_type == SW_CHECKSUMMING) {
7177 PRINT_WARN("Using SW checksumming on %s.\n",
7178 QETH_CARD_IFNAME(card));
7179 return 0;
7180 }
7181 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7182 PRINT_WARN("Inbound HW Checksumming not "
7183 "supported on %s,\ncontinuing "
7184 "using Inbound SW Checksumming\n",
7185 QETH_CARD_IFNAME(card));
7186 card->options.checksum_type = SW_CHECKSUMMING;
7187 return 0;
7188 }
7189 rc = qeth_send_checksum_command(card);
7190 if (!rc) {
7191 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7192 }
7193 return rc;
7194 }
7195
7196 static int
7197 qeth_start_ipa_tso(struct qeth_card *card)
7198 {
7199 int rc;
7200
7201 QETH_DBF_TEXT(trace,3,"sttso");
7202
7203 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7204 PRINT_WARN("Outbound TSO not supported on %s\n",
7205 QETH_CARD_IFNAME(card));
7206 rc = -EOPNOTSUPP;
7207 } else {
7208 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7209 IPA_CMD_ASS_START,0);
7210 if (rc)
7211 PRINT_WARN("Could not start outbound TSO "
7212 "assist on %s: rc=%i\n",
7213 QETH_CARD_IFNAME(card), rc);
7214 else
7215 PRINT_INFO("Outbound TSO enabled\n");
7216 }
7217 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7218 card->options.large_send = QETH_LARGE_SEND_NO;
7219 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7220 }
7221 return rc;
7222 }
7223
7224 static int
7225 qeth_start_ipassists(struct qeth_card *card)
7226 {
7227 QETH_DBF_TEXT(trace,3,"strtipas");
7228 qeth_start_ipa_arp_processing(card); /* go on*/
7229 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7230 qeth_start_ipa_source_mac(card); /* go on*/
7231 qeth_start_ipa_vlan(card); /* go on*/
7232 qeth_start_ipa_multicast(card); /* go on*/
7233 qeth_start_ipa_ipv6(card); /* go on*/
7234 qeth_start_ipa_broadcast(card); /* go on*/
7235 qeth_start_ipa_checksum(card); /* go on*/
7236 qeth_start_ipa_tso(card); /* go on*/
7237 return 0;
7238 }
7239
7240 static int
7241 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7242 enum qeth_prot_versions prot)
7243 {
7244 int rc;
7245 struct qeth_ipa_cmd *cmd;
7246 struct qeth_cmd_buffer *iob;
7247
7248 QETH_DBF_TEXT(trace,4,"setroutg");
7249 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7250 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7251 cmd->data.setrtg.type = (type);
7252 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7253
7254 return rc;
7255
7256 }
7257
7258 static void
7259 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7260 enum qeth_prot_versions prot)
7261 {
7262 if (card->info.type == QETH_CARD_TYPE_IQD) {
7263 switch (*type) {
7264 case NO_ROUTER:
7265 case PRIMARY_CONNECTOR:
7266 case SECONDARY_CONNECTOR:
7267 case MULTICAST_ROUTER:
7268 return;
7269 default:
7270 goto out_inval;
7271 }
7272 } else {
7273 switch (*type) {
7274 case NO_ROUTER:
7275 case PRIMARY_ROUTER:
7276 case SECONDARY_ROUTER:
7277 return;
7278 case MULTICAST_ROUTER:
7279 if (qeth_is_ipafunc_supported(card, prot,
7280 IPA_OSA_MC_ROUTER))
7281 return;
7282 default:
7283 goto out_inval;
7284 }
7285 }
7286 out_inval:
7287 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7288 "Router status set to 'no router'.\n",
7289 ((*type == PRIMARY_ROUTER)? "primary router" :
7290 (*type == SECONDARY_ROUTER)? "secondary router" :
7291 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7292 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7293 (*type == MULTICAST_ROUTER)? "multicast router" :
7294 "unknown"),
7295 card->dev->name);
7296 *type = NO_ROUTER;
7297 }
7298
7299 int
7300 qeth_setrouting_v4(struct qeth_card *card)
7301 {
7302 int rc;
7303
7304 QETH_DBF_TEXT(trace,3,"setrtg4");
7305
7306 qeth_correct_routing_type(card, &card->options.route4.type,
7307 QETH_PROT_IPV4);
7308
7309 rc = qeth_send_setrouting(card, card->options.route4.type,
7310 QETH_PROT_IPV4);
7311 if (rc) {
7312 card->options.route4.type = NO_ROUTER;
7313 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7314 "Type set to 'no router'.\n",
7315 rc, QETH_CARD_IFNAME(card));
7316 }
7317 return rc;
7318 }
7319
7320 int
7321 qeth_setrouting_v6(struct qeth_card *card)
7322 {
7323 int rc = 0;
7324
7325 QETH_DBF_TEXT(trace,3,"setrtg6");
7326 #ifdef CONFIG_QETH_IPV6
7327
7328 if (!qeth_is_supported(card, IPA_IPV6))
7329 return 0;
7330 qeth_correct_routing_type(card, &card->options.route6.type,
7331 QETH_PROT_IPV6);
7332
7333 rc = qeth_send_setrouting(card, card->options.route6.type,
7334 QETH_PROT_IPV6);
7335 if (rc) {
7336 card->options.route6.type = NO_ROUTER;
7337 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7338 "Type set to 'no router'.\n",
7339 rc, QETH_CARD_IFNAME(card));
7340 }
7341 #endif
7342 return rc;
7343 }
7344
7345 int
7346 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7347 {
7348 int rc = 0;
7349
7350 if (card->dev == NULL) {
7351 card->options.large_send = type;
7352 return 0;
7353 }
7354 if (card->state == CARD_STATE_UP)
7355 netif_tx_disable(card->dev);
7356 card->options.large_send = type;
7357 switch (card->options.large_send) {
7358 case QETH_LARGE_SEND_EDDP:
7359 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7360 break;
7361 case QETH_LARGE_SEND_TSO:
7362 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7363 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7364 } else {
7365 PRINT_WARN("TSO not supported on %s. "
7366 "large_send set to 'no'.\n",
7367 card->dev->name);
7368 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7369 card->options.large_send = QETH_LARGE_SEND_NO;
7370 rc = -EOPNOTSUPP;
7371 }
7372 break;
7373 default: /* includes QETH_LARGE_SEND_NO */
7374 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7375 break;
7376 }
7377 if (card->state == CARD_STATE_UP)
7378 netif_wake_queue(card->dev);
7379 return rc;
7380 }
7381
7382 /*
7383 * softsetup card: init IPA stuff
7384 */
7385 static int
7386 qeth_softsetup_card(struct qeth_card *card)
7387 {
7388 int rc;
7389
7390 QETH_DBF_TEXT(setup, 2, "softsetp");
7391
7392 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7393 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7394 if (rc == 0xe080){
7395 PRINT_WARN("LAN on card %s if offline! "
7396 "Continuing softsetup.\n",
7397 CARD_BUS_ID(card));
7398 card->lan_online = 0;
7399 } else
7400 return rc;
7401 } else
7402 card->lan_online = 1;
7403 if (card->info.type==QETH_CARD_TYPE_OSN)
7404 goto out;
7405 qeth_set_large_send(card, card->options.large_send);
7406 if (card->options.layer2) {
7407 card->dev->features |=
7408 NETIF_F_HW_VLAN_FILTER |
7409 NETIF_F_HW_VLAN_TX |
7410 NETIF_F_HW_VLAN_RX;
7411 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7412 card->info.broadcast_capable=1;
7413 if ((rc = qeth_layer2_initialize(card))) {
7414 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7415 return rc;
7416 }
7417 #ifdef CONFIG_QETH_VLAN
7418 qeth_layer2_process_vlans(card, 0);
7419 #endif
7420 goto out;
7421 }
7422 if ((rc = qeth_setadapter_parms(card)))
7423 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7424 if ((rc = qeth_start_ipassists(card)))
7425 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7426 if ((rc = qeth_setrouting_v4(card)))
7427 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7428 if ((rc = qeth_setrouting_v6(card)))
7429 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7430 out:
7431 netif_tx_disable(card->dev);
7432 return 0;
7433 }
7434
7435 #ifdef CONFIG_QETH_IPV6
7436 static int
7437 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7438 unsigned long data)
7439 {
7440 struct qeth_ipa_cmd *cmd;
7441
7442 cmd = (struct qeth_ipa_cmd *) data;
7443 if (cmd->hdr.return_code == 0)
7444 card->info.unique_id = *((__u16 *)
7445 &cmd->data.create_destroy_addr.unique_id[6]);
7446 else {
7447 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7448 UNIQUE_ID_NOT_BY_CARD;
7449 PRINT_WARN("couldn't get a unique id from the card on device "
7450 "%s (result=x%x), using default id. ipv6 "
7451 "autoconfig on other lpars may lead to duplicate "
7452 "ip addresses. please use manually "
7453 "configured ones.\n",
7454 CARD_BUS_ID(card), cmd->hdr.return_code);
7455 }
7456 return 0;
7457 }
7458 #endif
7459
7460 static int
7461 qeth_put_unique_id(struct qeth_card *card)
7462 {
7463
7464 int rc = 0;
7465 #ifdef CONFIG_QETH_IPV6
7466 struct qeth_cmd_buffer *iob;
7467 struct qeth_ipa_cmd *cmd;
7468
7469 QETH_DBF_TEXT(trace,2,"puniqeid");
7470
7471 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7472 UNIQUE_ID_NOT_BY_CARD)
7473 return -1;
7474 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7475 QETH_PROT_IPV6);
7476 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7477 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7478 card->info.unique_id;
7479 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7480 card->dev->dev_addr, OSA_ADDR_LEN);
7481 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7482 #else
7483 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7484 UNIQUE_ID_NOT_BY_CARD;
7485 #endif
7486 return rc;
7487 }
7488
7489 /**
7490 * Clear IP List
7491 */
7492 static void
7493 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7494 {
7495 struct qeth_ipaddr *addr, *tmp;
7496 unsigned long flags;
7497
7498 QETH_DBF_TEXT(trace,4,"clearip");
7499 spin_lock_irqsave(&card->ip_lock, flags);
7500 /* clear todo list */
7501 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7502 list_del(&addr->entry);
7503 kfree(addr);
7504 }
7505
7506 while (!list_empty(&card->ip_list)) {
7507 addr = list_entry(card->ip_list.next,
7508 struct qeth_ipaddr, entry);
7509 list_del_init(&addr->entry);
7510 if (clean) {
7511 spin_unlock_irqrestore(&card->ip_lock, flags);
7512 qeth_deregister_addr_entry(card, addr);
7513 spin_lock_irqsave(&card->ip_lock, flags);
7514 }
7515 if (!recover || addr->is_multicast) {
7516 kfree(addr);
7517 continue;
7518 }
7519 list_add_tail(&addr->entry, card->ip_tbd_list);
7520 }
7521 spin_unlock_irqrestore(&card->ip_lock, flags);
7522 }
7523
7524 static void
7525 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7526 int clear_start_mask)
7527 {
7528 unsigned long flags;
7529
7530 spin_lock_irqsave(&card->thread_mask_lock, flags);
7531 card->thread_allowed_mask = threads;
7532 if (clear_start_mask)
7533 card->thread_start_mask &= threads;
7534 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7535 wake_up(&card->wait_q);
7536 }
7537
7538 static int
7539 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7540 {
7541 unsigned long flags;
7542 int rc = 0;
7543
7544 spin_lock_irqsave(&card->thread_mask_lock, flags);
7545 rc = (card->thread_running_mask & threads);
7546 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7547 return rc;
7548 }
7549
7550 static int
7551 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7552 {
7553 return wait_event_interruptible(card->wait_q,
7554 qeth_threads_running(card, threads) == 0);
7555 }
7556
7557 static int
7558 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7559 {
7560 int rc = 0;
7561
7562 QETH_DBF_TEXT(setup ,2,"stopcard");
7563 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7564
7565 qeth_set_allowed_threads(card, 0, 1);
7566 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7567 return -ERESTARTSYS;
7568 if (card->read.state == CH_STATE_UP &&
7569 card->write.state == CH_STATE_UP &&
7570 (card->state == CARD_STATE_UP)) {
7571 if (recovery_mode &&
7572 card->info.type != QETH_CARD_TYPE_OSN) {
7573 qeth_stop(card->dev);
7574 } else {
7575 rtnl_lock();
7576 dev_close(card->dev);
7577 rtnl_unlock();
7578 }
7579 if (!card->use_hard_stop) {
7580 __u8 *mac = &card->dev->dev_addr[0];
7581 rc = qeth_layer2_send_delmac(card, mac);
7582 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7583 if ((rc = qeth_send_stoplan(card)))
7584 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7585 }
7586 card->state = CARD_STATE_SOFTSETUP;
7587 }
7588 if (card->state == CARD_STATE_SOFTSETUP) {
7589 #ifdef CONFIG_QETH_VLAN
7590 if (card->options.layer2)
7591 qeth_layer2_process_vlans(card, 1);
7592 #endif
7593 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7594 qeth_clear_ipacmd_list(card);
7595 card->state = CARD_STATE_HARDSETUP;
7596 }
7597 if (card->state == CARD_STATE_HARDSETUP) {
7598 if ((!card->use_hard_stop) &&
7599 (!card->options.layer2))
7600 if ((rc = qeth_put_unique_id(card)))
7601 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7602 qeth_qdio_clear_card(card, 0);
7603 qeth_clear_qdio_buffers(card);
7604 qeth_clear_working_pool_list(card);
7605 card->state = CARD_STATE_DOWN;
7606 }
7607 if (card->state == CARD_STATE_DOWN) {
7608 qeth_clear_cmd_buffers(&card->read);
7609 qeth_clear_cmd_buffers(&card->write);
7610 }
7611 card->use_hard_stop = 0;
7612 return rc;
7613 }
7614
7615
7616 static int
7617 qeth_get_unique_id(struct qeth_card *card)
7618 {
7619 int rc = 0;
7620 #ifdef CONFIG_QETH_IPV6
7621 struct qeth_cmd_buffer *iob;
7622 struct qeth_ipa_cmd *cmd;
7623
7624 QETH_DBF_TEXT(setup, 2, "guniqeid");
7625
7626 if (!qeth_is_supported(card,IPA_IPV6)) {
7627 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7628 UNIQUE_ID_NOT_BY_CARD;
7629 return 0;
7630 }
7631
7632 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7633 QETH_PROT_IPV6);
7634 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7635 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7636 card->info.unique_id;
7637
7638 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7639 #else
7640 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7641 UNIQUE_ID_NOT_BY_CARD;
7642 #endif
7643 return rc;
7644 }
7645 static void
7646 qeth_print_status_with_portname(struct qeth_card *card)
7647 {
7648 char dbf_text[15];
7649 int i;
7650
7651 sprintf(dbf_text, "%s", card->info.portname + 1);
7652 for (i = 0; i < 8; i++)
7653 dbf_text[i] =
7654 (char) _ebcasc[(__u8) dbf_text[i]];
7655 dbf_text[8] = 0;
7656 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7657 "with link type %s (portname: %s)\n",
7658 CARD_RDEV_ID(card),
7659 CARD_WDEV_ID(card),
7660 CARD_DDEV_ID(card),
7661 qeth_get_cardname(card),
7662 (card->info.mcl_level[0]) ? " (level: " : "",
7663 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7664 (card->info.mcl_level[0]) ? ")" : "",
7665 qeth_get_cardname_short(card),
7666 dbf_text);
7667
7668 }
7669
7670 static void
7671 qeth_print_status_no_portname(struct qeth_card *card)
7672 {
7673 if (card->info.portname[0])
7674 printk("qeth: Device %s/%s/%s is a%s "
7675 "card%s%s%s\nwith link type %s "
7676 "(no portname needed by interface).\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 else
7686 printk("qeth: Device %s/%s/%s is a%s "
7687 "card%s%s%s\nwith link type %s.\n",
7688 CARD_RDEV_ID(card),
7689 CARD_WDEV_ID(card),
7690 CARD_DDEV_ID(card),
7691 qeth_get_cardname(card),
7692 (card->info.mcl_level[0]) ? " (level: " : "",
7693 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7694 (card->info.mcl_level[0]) ? ")" : "",
7695 qeth_get_cardname_short(card));
7696 }
7697
7698 static void
7699 qeth_print_status_message(struct qeth_card *card)
7700 {
7701 switch (card->info.type) {
7702 case QETH_CARD_TYPE_OSAE:
7703 /* VM will use a non-zero first character
7704 * to indicate a HiperSockets like reporting
7705 * of the level OSA sets the first character to zero
7706 * */
7707 if (!card->info.mcl_level[0]) {
7708 sprintf(card->info.mcl_level,"%02x%02x",
7709 card->info.mcl_level[2],
7710 card->info.mcl_level[3]);
7711
7712 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7713 break;
7714 }
7715 /* fallthrough */
7716 case QETH_CARD_TYPE_IQD:
7717 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7718 card->info.mcl_level[0]];
7719 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7720 card->info.mcl_level[1]];
7721 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7722 card->info.mcl_level[2]];
7723 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7724 card->info.mcl_level[3]];
7725 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7726 break;
7727 default:
7728 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7729 }
7730 if (card->info.portname_required)
7731 qeth_print_status_with_portname(card);
7732 else
7733 qeth_print_status_no_portname(card);
7734 }
7735
7736 static int
7737 qeth_register_netdev(struct qeth_card *card)
7738 {
7739 QETH_DBF_TEXT(setup, 3, "regnetd");
7740 if (card->dev->reg_state != NETREG_UNINITIALIZED)
7741 return 0;
7742 /* sysfs magic */
7743 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7744 return register_netdev(card->dev);
7745 }
7746
7747 static void
7748 qeth_start_again(struct qeth_card *card, int recovery_mode)
7749 {
7750 QETH_DBF_TEXT(setup ,2, "startag");
7751
7752 if (recovery_mode &&
7753 card->info.type != QETH_CARD_TYPE_OSN) {
7754 qeth_open(card->dev);
7755 } else {
7756 rtnl_lock();
7757 dev_open(card->dev);
7758 rtnl_unlock();
7759 }
7760 /* this also sets saved unicast addresses */
7761 qeth_set_multicast_list(card->dev);
7762 }
7763
7764
7765 /* Layer 2 specific stuff */
7766 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7767 if (card->options.option == value) { \
7768 PRINT_ERR("%s not supported with layer 2 " \
7769 "functionality, ignoring option on read" \
7770 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7771 card->options.option = reset_value; \
7772 }
7773 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7774 if (card->options.option != value) { \
7775 PRINT_ERR("%s not supported with layer 2 " \
7776 "functionality, ignoring option on read" \
7777 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7778 card->options.option = reset_value; \
7779 }
7780
7781
7782 static void qeth_make_parameters_consistent(struct qeth_card *card)
7783 {
7784
7785 if (card->options.layer2 == 0)
7786 return;
7787 if (card->info.type == QETH_CARD_TYPE_OSN)
7788 return;
7789 if (card->info.type == QETH_CARD_TYPE_IQD) {
7790 PRINT_ERR("Device %s does not support layer 2 functionality." \
7791 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7792 card->options.layer2 = 0;
7793 return;
7794 }
7795 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7796 "Routing options are");
7797 #ifdef CONFIG_QETH_IPV6
7798 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7799 "Routing options are");
7800 #endif
7801 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7802 QETH_CHECKSUM_DEFAULT,
7803 "Checksumming options are");
7804 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7805 QETH_TR_BROADCAST_ALLRINGS,
7806 "Broadcast mode options are");
7807 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7808 QETH_TR_MACADDR_NONCANONICAL,
7809 "Canonical MAC addr options are");
7810 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7811 "Broadcast faking options are");
7812 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7813 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7814 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7815 }
7816
7817
7818 static int
7819 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7820 {
7821 struct qeth_card *card = gdev->dev.driver_data;
7822 int rc = 0;
7823 enum qeth_card_states recover_flag;
7824
7825 BUG_ON(!card);
7826 QETH_DBF_TEXT(setup ,2, "setonlin");
7827 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7828
7829 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7830 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7831 PRINT_WARN("set_online of card %s interrupted by user!\n",
7832 CARD_BUS_ID(card));
7833 return -ERESTARTSYS;
7834 }
7835
7836 recover_flag = card->state;
7837 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7838 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7839 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7840 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7841 return -EIO;
7842 }
7843
7844 qeth_make_parameters_consistent(card);
7845
7846 if ((rc = qeth_hardsetup_card(card))){
7847 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7848 goto out_remove;
7849 }
7850 card->state = CARD_STATE_HARDSETUP;
7851
7852 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7853 rc = qeth_get_unique_id(card);
7854
7855 if (rc && card->options.layer2 == 0) {
7856 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7857 goto out_remove;
7858 }
7859 qeth_print_status_message(card);
7860 if ((rc = qeth_register_netdev(card))){
7861 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7862 goto out_remove;
7863 }
7864 if ((rc = qeth_softsetup_card(card))){
7865 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7866 goto out_remove;
7867 }
7868
7869 if ((rc = qeth_init_qdio_queues(card))){
7870 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7871 goto out_remove;
7872 }
7873 card->state = CARD_STATE_SOFTSETUP;
7874 netif_carrier_on(card->dev);
7875
7876 qeth_set_allowed_threads(card, 0xffffffff, 0);
7877 if (recover_flag == CARD_STATE_RECOVER)
7878 qeth_start_again(card, recovery_mode);
7879 qeth_notify_processes();
7880 return 0;
7881 out_remove:
7882 card->use_hard_stop = 1;
7883 qeth_stop_card(card, 0);
7884 ccw_device_set_offline(CARD_DDEV(card));
7885 ccw_device_set_offline(CARD_WDEV(card));
7886 ccw_device_set_offline(CARD_RDEV(card));
7887 if (recover_flag == CARD_STATE_RECOVER)
7888 card->state = CARD_STATE_RECOVER;
7889 else
7890 card->state = CARD_STATE_DOWN;
7891 return -ENODEV;
7892 }
7893
7894 static int
7895 qeth_set_online(struct ccwgroup_device *gdev)
7896 {
7897 return __qeth_set_online(gdev, 0);
7898 }
7899
7900 static struct ccw_device_id qeth_ids[] = {
7901 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7902 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7903 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
7904 {},
7905 };
7906 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7907
7908 struct device *qeth_root_dev = NULL;
7909
7910 struct ccwgroup_driver qeth_ccwgroup_driver = {
7911 .owner = THIS_MODULE,
7912 .name = "qeth",
7913 .driver_id = 0xD8C5E3C8,
7914 .probe = qeth_probe_device,
7915 .remove = qeth_remove_device,
7916 .set_online = qeth_set_online,
7917 .set_offline = qeth_set_offline,
7918 };
7919
7920 struct ccw_driver qeth_ccw_driver = {
7921 .name = "qeth",
7922 .ids = qeth_ids,
7923 .probe = ccwgroup_probe_ccwdev,
7924 .remove = ccwgroup_remove_ccwdev,
7925 };
7926
7927
7928 static void
7929 qeth_unregister_dbf_views(void)
7930 {
7931 if (qeth_dbf_setup)
7932 debug_unregister(qeth_dbf_setup);
7933 if (qeth_dbf_qerr)
7934 debug_unregister(qeth_dbf_qerr);
7935 if (qeth_dbf_sense)
7936 debug_unregister(qeth_dbf_sense);
7937 if (qeth_dbf_misc)
7938 debug_unregister(qeth_dbf_misc);
7939 if (qeth_dbf_data)
7940 debug_unregister(qeth_dbf_data);
7941 if (qeth_dbf_control)
7942 debug_unregister(qeth_dbf_control);
7943 if (qeth_dbf_trace)
7944 debug_unregister(qeth_dbf_trace);
7945 }
7946 static int
7947 qeth_register_dbf_views(void)
7948 {
7949 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7950 QETH_DBF_SETUP_PAGES,
7951 QETH_DBF_SETUP_NR_AREAS,
7952 QETH_DBF_SETUP_LEN);
7953 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7954 QETH_DBF_MISC_PAGES,
7955 QETH_DBF_MISC_NR_AREAS,
7956 QETH_DBF_MISC_LEN);
7957 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7958 QETH_DBF_DATA_PAGES,
7959 QETH_DBF_DATA_NR_AREAS,
7960 QETH_DBF_DATA_LEN);
7961 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7962 QETH_DBF_CONTROL_PAGES,
7963 QETH_DBF_CONTROL_NR_AREAS,
7964 QETH_DBF_CONTROL_LEN);
7965 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7966 QETH_DBF_SENSE_PAGES,
7967 QETH_DBF_SENSE_NR_AREAS,
7968 QETH_DBF_SENSE_LEN);
7969 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7970 QETH_DBF_QERR_PAGES,
7971 QETH_DBF_QERR_NR_AREAS,
7972 QETH_DBF_QERR_LEN);
7973 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7974 QETH_DBF_TRACE_PAGES,
7975 QETH_DBF_TRACE_NR_AREAS,
7976 QETH_DBF_TRACE_LEN);
7977
7978 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
7979 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
7980 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
7981 (qeth_dbf_trace == NULL)) {
7982 qeth_unregister_dbf_views();
7983 return -ENOMEM;
7984 }
7985 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7986 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7987
7988 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7989 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7990
7991 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7992 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7993
7994 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7995 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7996
7997 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
7998 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
7999
8000 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8001 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8002
8003 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8004 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8005
8006 return 0;
8007 }
8008
8009 #ifdef CONFIG_QETH_IPV6
8010 extern struct neigh_table arp_tbl;
8011 static struct neigh_ops *arp_direct_ops;
8012 static int (*qeth_old_arp_constructor) (struct neighbour *);
8013
8014 static struct neigh_ops arp_direct_ops_template = {
8015 .family = AF_INET,
8016 .solicit = NULL,
8017 .error_report = NULL,
8018 .output = dev_queue_xmit,
8019 .connected_output = dev_queue_xmit,
8020 .hh_output = dev_queue_xmit,
8021 .queue_xmit = dev_queue_xmit
8022 };
8023
8024 static int
8025 qeth_arp_constructor(struct neighbour *neigh)
8026 {
8027 struct net_device *dev = neigh->dev;
8028 struct in_device *in_dev;
8029 struct neigh_parms *parms;
8030 struct qeth_card *card;
8031
8032 card = qeth_get_card_from_dev(dev);
8033 if (card == NULL)
8034 goto out;
8035 if((card->options.layer2) ||
8036 (card->dev->hard_header == qeth_fake_header))
8037 goto out;
8038
8039 rcu_read_lock();
8040 in_dev = __in_dev_get_rcu(dev);
8041 if (in_dev == NULL) {
8042 rcu_read_unlock();
8043 return -EINVAL;
8044 }
8045
8046 parms = in_dev->arp_parms;
8047 __neigh_parms_put(neigh->parms);
8048 neigh->parms = neigh_parms_clone(parms);
8049 rcu_read_unlock();
8050
8051 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8052 neigh->nud_state = NUD_NOARP;
8053 neigh->ops = arp_direct_ops;
8054 neigh->output = neigh->ops->queue_xmit;
8055 return 0;
8056 out:
8057 return qeth_old_arp_constructor(neigh);
8058 }
8059 #endif /*CONFIG_QETH_IPV6*/
8060
8061 /*
8062 * IP address takeover related functions
8063 */
8064 static void
8065 qeth_clear_ipato_list(struct qeth_card *card)
8066 {
8067 struct qeth_ipato_entry *ipatoe, *tmp;
8068 unsigned long flags;
8069
8070 spin_lock_irqsave(&card->ip_lock, flags);
8071 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8072 list_del(&ipatoe->entry);
8073 kfree(ipatoe);
8074 }
8075 spin_unlock_irqrestore(&card->ip_lock, flags);
8076 }
8077
8078 int
8079 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8080 {
8081 struct qeth_ipato_entry *ipatoe;
8082 unsigned long flags;
8083 int rc = 0;
8084
8085 QETH_DBF_TEXT(trace, 2, "addipato");
8086 spin_lock_irqsave(&card->ip_lock, flags);
8087 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8088 if (ipatoe->proto != new->proto)
8089 continue;
8090 if (!memcmp(ipatoe->addr, new->addr,
8091 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8092 (ipatoe->mask_bits == new->mask_bits)){
8093 PRINT_WARN("ipato entry already exists!\n");
8094 rc = -EEXIST;
8095 break;
8096 }
8097 }
8098 if (!rc) {
8099 list_add_tail(&new->entry, &card->ipato.entries);
8100 }
8101 spin_unlock_irqrestore(&card->ip_lock, flags);
8102 return rc;
8103 }
8104
8105 void
8106 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8107 u8 *addr, int mask_bits)
8108 {
8109 struct qeth_ipato_entry *ipatoe, *tmp;
8110 unsigned long flags;
8111
8112 QETH_DBF_TEXT(trace, 2, "delipato");
8113 spin_lock_irqsave(&card->ip_lock, flags);
8114 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8115 if (ipatoe->proto != proto)
8116 continue;
8117 if (!memcmp(ipatoe->addr, addr,
8118 (proto == QETH_PROT_IPV4)? 4:16) &&
8119 (ipatoe->mask_bits == mask_bits)){
8120 list_del(&ipatoe->entry);
8121 kfree(ipatoe);
8122 }
8123 }
8124 spin_unlock_irqrestore(&card->ip_lock, flags);
8125 }
8126
8127 static void
8128 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8129 {
8130 int i, j;
8131 u8 octet;
8132
8133 for (i = 0; i < len; ++i){
8134 octet = addr[i];
8135 for (j = 7; j >= 0; --j){
8136 bits[i*8 + j] = octet & 1;
8137 octet >>= 1;
8138 }
8139 }
8140 }
8141
8142 static int
8143 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8144 {
8145 struct qeth_ipato_entry *ipatoe;
8146 u8 addr_bits[128] = {0, };
8147 u8 ipatoe_bits[128] = {0, };
8148 int rc = 0;
8149
8150 if (!card->ipato.enabled)
8151 return 0;
8152
8153 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8154 (addr->proto == QETH_PROT_IPV4)? 4:16);
8155 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8156 if (addr->proto != ipatoe->proto)
8157 continue;
8158 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8159 (ipatoe->proto==QETH_PROT_IPV4) ?
8160 4:16);
8161 if (addr->proto == QETH_PROT_IPV4)
8162 rc = !memcmp(addr_bits, ipatoe_bits,
8163 min(32, ipatoe->mask_bits));
8164 else
8165 rc = !memcmp(addr_bits, ipatoe_bits,
8166 min(128, ipatoe->mask_bits));
8167 if (rc)
8168 break;
8169 }
8170 /* invert? */
8171 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8172 rc = !rc;
8173 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8174 rc = !rc;
8175
8176 return rc;
8177 }
8178
8179 /*
8180 * VIPA related functions
8181 */
8182 int
8183 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8184 const u8 *addr)
8185 {
8186 struct qeth_ipaddr *ipaddr;
8187 unsigned long flags;
8188 int rc = 0;
8189
8190 ipaddr = qeth_get_addr_buffer(proto);
8191 if (ipaddr){
8192 if (proto == QETH_PROT_IPV4){
8193 QETH_DBF_TEXT(trace, 2, "addvipa4");
8194 memcpy(&ipaddr->u.a4.addr, addr, 4);
8195 ipaddr->u.a4.mask = 0;
8196 #ifdef CONFIG_QETH_IPV6
8197 } else if (proto == QETH_PROT_IPV6){
8198 QETH_DBF_TEXT(trace, 2, "addvipa6");
8199 memcpy(&ipaddr->u.a6.addr, addr, 16);
8200 ipaddr->u.a6.pfxlen = 0;
8201 #endif
8202 }
8203 ipaddr->type = QETH_IP_TYPE_VIPA;
8204 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8205 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8206 } else
8207 return -ENOMEM;
8208 spin_lock_irqsave(&card->ip_lock, flags);
8209 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8210 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8211 rc = -EEXIST;
8212 spin_unlock_irqrestore(&card->ip_lock, flags);
8213 if (rc){
8214 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8215 return rc;
8216 }
8217 if (!qeth_add_ip(card, ipaddr))
8218 kfree(ipaddr);
8219 qeth_set_ip_addr_list(card);
8220 return rc;
8221 }
8222
8223 void
8224 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8225 const u8 *addr)
8226 {
8227 struct qeth_ipaddr *ipaddr;
8228
8229 ipaddr = qeth_get_addr_buffer(proto);
8230 if (ipaddr){
8231 if (proto == QETH_PROT_IPV4){
8232 QETH_DBF_TEXT(trace, 2, "delvipa4");
8233 memcpy(&ipaddr->u.a4.addr, addr, 4);
8234 ipaddr->u.a4.mask = 0;
8235 #ifdef CONFIG_QETH_IPV6
8236 } else if (proto == QETH_PROT_IPV6){
8237 QETH_DBF_TEXT(trace, 2, "delvipa6");
8238 memcpy(&ipaddr->u.a6.addr, addr, 16);
8239 ipaddr->u.a6.pfxlen = 0;
8240 #endif
8241 }
8242 ipaddr->type = QETH_IP_TYPE_VIPA;
8243 } else
8244 return;
8245 if (!qeth_delete_ip(card, ipaddr))
8246 kfree(ipaddr);
8247 qeth_set_ip_addr_list(card);
8248 }
8249
8250 /*
8251 * proxy ARP related functions
8252 */
8253 int
8254 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8255 const u8 *addr)
8256 {
8257 struct qeth_ipaddr *ipaddr;
8258 unsigned long flags;
8259 int rc = 0;
8260
8261 ipaddr = qeth_get_addr_buffer(proto);
8262 if (ipaddr){
8263 if (proto == QETH_PROT_IPV4){
8264 QETH_DBF_TEXT(trace, 2, "addrxip4");
8265 memcpy(&ipaddr->u.a4.addr, addr, 4);
8266 ipaddr->u.a4.mask = 0;
8267 #ifdef CONFIG_QETH_IPV6
8268 } else if (proto == QETH_PROT_IPV6){
8269 QETH_DBF_TEXT(trace, 2, "addrxip6");
8270 memcpy(&ipaddr->u.a6.addr, addr, 16);
8271 ipaddr->u.a6.pfxlen = 0;
8272 #endif
8273 }
8274 ipaddr->type = QETH_IP_TYPE_RXIP;
8275 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8276 ipaddr->del_flags = 0;
8277 } else
8278 return -ENOMEM;
8279 spin_lock_irqsave(&card->ip_lock, flags);
8280 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8281 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8282 rc = -EEXIST;
8283 spin_unlock_irqrestore(&card->ip_lock, flags);
8284 if (rc){
8285 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8286 return rc;
8287 }
8288 if (!qeth_add_ip(card, ipaddr))
8289 kfree(ipaddr);
8290 qeth_set_ip_addr_list(card);
8291 return 0;
8292 }
8293
8294 void
8295 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8296 const u8 *addr)
8297 {
8298 struct qeth_ipaddr *ipaddr;
8299
8300 ipaddr = qeth_get_addr_buffer(proto);
8301 if (ipaddr){
8302 if (proto == QETH_PROT_IPV4){
8303 QETH_DBF_TEXT(trace, 2, "addrxip4");
8304 memcpy(&ipaddr->u.a4.addr, addr, 4);
8305 ipaddr->u.a4.mask = 0;
8306 #ifdef CONFIG_QETH_IPV6
8307 } else if (proto == QETH_PROT_IPV6){
8308 QETH_DBF_TEXT(trace, 2, "addrxip6");
8309 memcpy(&ipaddr->u.a6.addr, addr, 16);
8310 ipaddr->u.a6.pfxlen = 0;
8311 #endif
8312 }
8313 ipaddr->type = QETH_IP_TYPE_RXIP;
8314 } else
8315 return;
8316 if (!qeth_delete_ip(card, ipaddr))
8317 kfree(ipaddr);
8318 qeth_set_ip_addr_list(card);
8319 }
8320
8321 /**
8322 * IP event handler
8323 */
8324 static int
8325 qeth_ip_event(struct notifier_block *this,
8326 unsigned long event,void *ptr)
8327 {
8328 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8329 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8330 struct qeth_ipaddr *addr;
8331 struct qeth_card *card;
8332
8333 QETH_DBF_TEXT(trace,3,"ipevent");
8334 card = qeth_get_card_from_dev(dev);
8335 if (!card)
8336 return NOTIFY_DONE;
8337 if (card->options.layer2)
8338 return NOTIFY_DONE;
8339
8340 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8341 if (addr != NULL) {
8342 addr->u.a4.addr = ifa->ifa_address;
8343 addr->u.a4.mask = ifa->ifa_mask;
8344 addr->type = QETH_IP_TYPE_NORMAL;
8345 } else
8346 goto out;
8347
8348 switch(event) {
8349 case NETDEV_UP:
8350 if (!qeth_add_ip(card, addr))
8351 kfree(addr);
8352 break;
8353 case NETDEV_DOWN:
8354 if (!qeth_delete_ip(card, addr))
8355 kfree(addr);
8356 break;
8357 default:
8358 break;
8359 }
8360 qeth_set_ip_addr_list(card);
8361 out:
8362 return NOTIFY_DONE;
8363 }
8364
8365 static struct notifier_block qeth_ip_notifier = {
8366 qeth_ip_event,
8367 NULL,
8368 };
8369
8370 #ifdef CONFIG_QETH_IPV6
8371 /**
8372 * IPv6 event handler
8373 */
8374 static int
8375 qeth_ip6_event(struct notifier_block *this,
8376 unsigned long event,void *ptr)
8377 {
8378
8379 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8380 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8381 struct qeth_ipaddr *addr;
8382 struct qeth_card *card;
8383
8384 QETH_DBF_TEXT(trace,3,"ip6event");
8385
8386 card = qeth_get_card_from_dev(dev);
8387 if (!card)
8388 return NOTIFY_DONE;
8389 if (!qeth_is_supported(card, IPA_IPV6))
8390 return NOTIFY_DONE;
8391
8392 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8393 if (addr != NULL) {
8394 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8395 addr->u.a6.pfxlen = ifa->prefix_len;
8396 addr->type = QETH_IP_TYPE_NORMAL;
8397 } else
8398 goto out;
8399
8400 switch(event) {
8401 case NETDEV_UP:
8402 if (!qeth_add_ip(card, addr))
8403 kfree(addr);
8404 break;
8405 case NETDEV_DOWN:
8406 if (!qeth_delete_ip(card, addr))
8407 kfree(addr);
8408 break;
8409 default:
8410 break;
8411 }
8412 qeth_set_ip_addr_list(card);
8413 out:
8414 return NOTIFY_DONE;
8415 }
8416
8417 static struct notifier_block qeth_ip6_notifier = {
8418 qeth_ip6_event,
8419 NULL,
8420 };
8421 #endif
8422
8423 static int
8424 __qeth_reboot_event_card(struct device *dev, void *data)
8425 {
8426 struct qeth_card *card;
8427
8428 card = (struct qeth_card *) dev->driver_data;
8429 qeth_clear_ip_list(card, 0, 0);
8430 qeth_qdio_clear_card(card, 0);
8431 return 0;
8432 }
8433
8434 static int
8435 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8436 {
8437 int ret;
8438
8439 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8440 __qeth_reboot_event_card);
8441 return ret ? NOTIFY_BAD : NOTIFY_DONE;
8442 }
8443
8444
8445 static struct notifier_block qeth_reboot_notifier = {
8446 qeth_reboot_event,
8447 NULL,
8448 };
8449
8450 static int
8451 qeth_register_notifiers(void)
8452 {
8453 int r;
8454
8455 QETH_DBF_TEXT(trace,5,"regnotif");
8456 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8457 return r;
8458 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8459 goto out_reboot;
8460 #ifdef CONFIG_QETH_IPV6
8461 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8462 goto out_ipv4;
8463 #endif
8464 return 0;
8465
8466 #ifdef CONFIG_QETH_IPV6
8467 out_ipv4:
8468 unregister_inetaddr_notifier(&qeth_ip_notifier);
8469 #endif
8470 out_reboot:
8471 unregister_reboot_notifier(&qeth_reboot_notifier);
8472 return r;
8473 }
8474
8475 /**
8476 * unregister all event notifiers
8477 */
8478 static void
8479 qeth_unregister_notifiers(void)
8480 {
8481
8482 QETH_DBF_TEXT(trace,5,"unregnot");
8483 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8484 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8485 #ifdef CONFIG_QETH_IPV6
8486 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8487 #endif /* QETH_IPV6 */
8488
8489 }
8490
8491 #ifdef CONFIG_QETH_IPV6
8492 static int
8493 qeth_ipv6_init(void)
8494 {
8495 qeth_old_arp_constructor = arp_tbl.constructor;
8496 write_lock_bh(&arp_tbl.lock);
8497 arp_tbl.constructor = qeth_arp_constructor;
8498 write_unlock_bh(&arp_tbl.lock);
8499
8500 arp_direct_ops = (struct neigh_ops*)
8501 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8502 if (!arp_direct_ops)
8503 return -ENOMEM;
8504
8505 memcpy(arp_direct_ops, &arp_direct_ops_template,
8506 sizeof(struct neigh_ops));
8507
8508 return 0;
8509 }
8510
8511 static void
8512 qeth_ipv6_uninit(void)
8513 {
8514 write_lock_bh(&arp_tbl.lock);
8515 arp_tbl.constructor = qeth_old_arp_constructor;
8516 write_unlock_bh(&arp_tbl.lock);
8517 kfree(arp_direct_ops);
8518 }
8519 #endif /* CONFIG_QETH_IPV6 */
8520
8521 static void
8522 qeth_sysfs_unregister(void)
8523 {
8524 s390_root_dev_unregister(qeth_root_dev);
8525 qeth_remove_driver_attributes();
8526 ccw_driver_unregister(&qeth_ccw_driver);
8527 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8528 }
8529
8530 /**
8531 * register qeth at sysfs
8532 */
8533 static int
8534 qeth_sysfs_register(void)
8535 {
8536 int rc;
8537
8538 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8539 if (rc)
8540 goto out;
8541
8542 rc = ccw_driver_register(&qeth_ccw_driver);
8543 if (rc)
8544 goto out_ccw_driver;
8545
8546 rc = qeth_create_driver_attributes();
8547 if (rc)
8548 goto out_qeth_attr;
8549
8550 qeth_root_dev = s390_root_dev_register("qeth");
8551 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8552 if (!rc)
8553 goto out;
8554
8555 qeth_remove_driver_attributes();
8556 out_qeth_attr:
8557 ccw_driver_unregister(&qeth_ccw_driver);
8558 out_ccw_driver:
8559 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8560 out:
8561 return rc;
8562 }
8563
8564 /***
8565 * init function
8566 */
8567 static int __init
8568 qeth_init(void)
8569 {
8570 int rc;
8571
8572 PRINT_INFO("loading %s\n", version);
8573
8574 INIT_LIST_HEAD(&qeth_card_list.list);
8575 INIT_LIST_HEAD(&qeth_notify_list);
8576 spin_lock_init(&qeth_notify_lock);
8577 rwlock_init(&qeth_card_list.rwlock);
8578
8579 rc = qeth_register_dbf_views();
8580 if (rc)
8581 goto out_err;
8582
8583 rc = qeth_sysfs_register();
8584 if (rc)
8585 goto out_dbf;
8586
8587 #ifdef CONFIG_QETH_IPV6
8588 rc = qeth_ipv6_init();
8589 if (rc) {
8590 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8591 goto out_sysfs;
8592 }
8593 #endif /* QETH_IPV6 */
8594 rc = qeth_register_notifiers();
8595 if (rc)
8596 goto out_ipv6;
8597 rc = qeth_create_procfs_entries();
8598 if (rc)
8599 goto out_notifiers;
8600
8601 return rc;
8602
8603 out_notifiers:
8604 qeth_unregister_notifiers();
8605 out_ipv6:
8606 #ifdef CONFIG_QETH_IPV6
8607 qeth_ipv6_uninit();
8608 out_sysfs:
8609 #endif /* QETH_IPV6 */
8610 qeth_sysfs_unregister();
8611 out_dbf:
8612 qeth_unregister_dbf_views();
8613 out_err:
8614 PRINT_ERR("Initialization failed with code %d\n", rc);
8615 return rc;
8616 }
8617
8618 static void
8619 __exit qeth_exit(void)
8620 {
8621 struct qeth_card *card, *tmp;
8622 unsigned long flags;
8623
8624 QETH_DBF_TEXT(trace,1, "cleanup.");
8625
8626 /*
8627 * Weed would not need to clean up our devices here, because the
8628 * common device layer calls qeth_remove_device for each device
8629 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8630 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8631 * qeth_remove_device called by the common device layer would otherwise
8632 * do a "hard" shutdown (card->use_hard_stop is set to one in
8633 * qeth_remove_device).
8634 */
8635 again:
8636 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8637 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8638 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8639 qeth_set_offline(card->gdev);
8640 qeth_remove_device(card->gdev);
8641 goto again;
8642 }
8643 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8644 #ifdef CONFIG_QETH_IPV6
8645 qeth_ipv6_uninit();
8646 #endif
8647 qeth_unregister_notifiers();
8648 qeth_remove_procfs_entries();
8649 qeth_sysfs_unregister();
8650 qeth_unregister_dbf_views();
8651 printk("qeth: removed\n");
8652 }
8653
8654 EXPORT_SYMBOL(qeth_osn_register);
8655 EXPORT_SYMBOL(qeth_osn_deregister);
8656 EXPORT_SYMBOL(qeth_osn_assist);
8657 module_init(qeth_init);
8658 module_exit(qeth_exit);
8659 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8660 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8661 "Copyright 2000,2003 IBM Corporation\n");
8662
8663 MODULE_LICENSE("GPL");
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