?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
[CONNECTOR]: async connector mode.
[linux-2.6/verdex.git] / drivers / s390 / net / qeth_main.c
blob86582cf1e19e01026556effa5ef2b13162806a47
1 /*
2 *
3 * linux/drivers/s390/net/qeth_main.c ($Revision: 1.224 $)
4 *
5 * Linux on zSeries OSA Express and HiperSockets support
6 *
7 * Copyright 2000,2003 IBM Corporation
8 *
9 * Author(s): Original Code written by
10 * Utz Bacher (utz.bacher@de.ibm.com)
11 * Rewritten by
12 * Frank Pavlic (pavlic@de.ibm.com) and
13 * Thomas Spatzier <tspat@de.ibm.com>
14 *
15 * $Revision: 1.224 $ $Date: 2005/05/04 20:19:18 $
16 *
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2, or (at your option)
20 * any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
30 */
31
32
33 #include <linux/config.h>
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/string.h>
37 #include <linux/errno.h>
38 #include <linux/mm.h>
39 #include <linux/ip.h>
40 #include <linux/inetdevice.h>
41 #include <linux/netdevice.h>
42 #include <linux/sched.h>
43 #include <linux/workqueue.h>
44 #include <linux/kernel.h>
45 #include <linux/slab.h>
46 #include <linux/interrupt.h>
47 #include <linux/tcp.h>
48 #include <linux/icmp.h>
49 #include <linux/skbuff.h>
50 #include <linux/in.h>
51 #include <linux/igmp.h>
52 #include <linux/init.h>
53 #include <linux/reboot.h>
54 #include <linux/mii.h>
55 #include <linux/rcupdate.h>
56 #include <linux/ethtool.h>
57
58 #include <net/arp.h>
59 #include <net/ip.h>
60 #include <net/route.h>
61
62 #include <asm/ebcdic.h>
63 #include <asm/io.h>
64 #include <asm/qeth.h>
65 #include <asm/timex.h>
66 #include <asm/semaphore.h>
67 #include <asm/uaccess.h>
68
69 #include "qeth.h"
70 #include "qeth_mpc.h"
71 #include "qeth_fs.h"
72 #include "qeth_eddp.h"
73 #include "qeth_tso.h"
74
75 #define VERSION_QETH_C "$Revision: 1.224 $"
76 static const char *version = "qeth S/390 OSA-Express driver";
77
78 /**
79 * Debug Facility Stuff
80 */
81 static debug_info_t *qeth_dbf_setup = NULL;
82 static debug_info_t *qeth_dbf_data = NULL;
83 static debug_info_t *qeth_dbf_misc = NULL;
84 static debug_info_t *qeth_dbf_control = NULL;
85 debug_info_t *qeth_dbf_trace = NULL;
86 static debug_info_t *qeth_dbf_sense = NULL;
87 static debug_info_t *qeth_dbf_qerr = NULL;
88
89 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
90
91 /**
92 * some more definitions and declarations
93 */
94 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
95
96 /* list of our cards */
97 struct qeth_card_list_struct qeth_card_list;
98 /*process list want to be notified*/
99 spinlock_t qeth_notify_lock;
100 struct list_head qeth_notify_list;
101
102 static void qeth_send_control_data_cb(struct qeth_channel *,
103 struct qeth_cmd_buffer *);
104
105 /**
106 * here we go with function implementation
107 */
108 static void
109 qeth_init_qdio_info(struct qeth_card *card);
110
111 static int
112 qeth_init_qdio_queues(struct qeth_card *card);
113
114 static int
115 qeth_alloc_qdio_buffers(struct qeth_card *card);
116
117 static void
118 qeth_free_qdio_buffers(struct qeth_card *);
119
120 static void
121 qeth_clear_qdio_buffers(struct qeth_card *);
122
123 static void
124 qeth_clear_ip_list(struct qeth_card *, int, int);
125
126 static void
127 qeth_clear_ipacmd_list(struct qeth_card *);
128
129 static int
130 qeth_qdio_clear_card(struct qeth_card *, int);
131
132 static void
133 qeth_clear_working_pool_list(struct qeth_card *);
134
135 static void
136 qeth_clear_cmd_buffers(struct qeth_channel *);
137
138 static int
139 qeth_stop(struct net_device *);
140
141 static void
142 qeth_clear_ipato_list(struct qeth_card *);
143
144 static int
145 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
146
147 static void
148 qeth_irq_tasklet(unsigned long);
149
150 static int
151 qeth_set_online(struct ccwgroup_device *);
152
153 static int
154 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
155
156 static struct qeth_ipaddr *
157 qeth_get_addr_buffer(enum qeth_prot_versions);
158
159 static void
160 qeth_set_multicast_list(struct net_device *);
161
162 static void
163 qeth_notify_processes(void)
164 {
165 /*notify all registered processes */
166 struct qeth_notify_list_struct *n_entry;
167
168 QETH_DBF_TEXT(trace,3,"procnoti");
169 spin_lock(&qeth_notify_lock);
170 list_for_each_entry(n_entry, &qeth_notify_list, list) {
171 send_sig(n_entry->signum, n_entry->task, 1);
172 }
173 spin_unlock(&qeth_notify_lock);
174
175 }
176 int
177 qeth_notifier_unregister(struct task_struct *p)
178 {
179 struct qeth_notify_list_struct *n_entry, *tmp;
180
181 QETH_DBF_TEXT(trace, 2, "notunreg");
182 spin_lock(&qeth_notify_lock);
183 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
184 if (n_entry->task == p) {
185 list_del(&n_entry->list);
186 kfree(n_entry);
187 goto out;
188 }
189 }
190 out:
191 spin_unlock(&qeth_notify_lock);
192 return 0;
193 }
194 int
195 qeth_notifier_register(struct task_struct *p, int signum)
196 {
197 struct qeth_notify_list_struct *n_entry;
198
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 = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
302 GFP_DMA|GFP_KERNEL);
303 if (!card)
304 return NULL;
305 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
306 memset(card, 0, sizeof(struct qeth_card));
307 if (qeth_setup_channel(&card->read)) {
308 kfree(card);
309 return NULL;
310 }
311 if (qeth_setup_channel(&card->write)) {
312 qeth_clean_channel(&card->read);
313 kfree(card);
314 return NULL;
315 }
316 return card;
317 }
318
319 static long
320 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
321 {
322 if (!IS_ERR(irb))
323 return 0;
324
325 switch (PTR_ERR(irb)) {
326 case -EIO:
327 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
328 QETH_DBF_TEXT(trace, 2, "ckirberr");
329 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
330 break;
331 case -ETIMEDOUT:
332 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
333 QETH_DBF_TEXT(trace, 2, "ckirberr");
334 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
335 break;
336 default:
337 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
338 cdev->dev.bus_id);
339 QETH_DBF_TEXT(trace, 2, "ckirberr");
340 QETH_DBF_TEXT(trace, 2, " rc???");
341 }
342 return PTR_ERR(irb);
343 }
344
345 static int
346 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
347 {
348 int dstat,cstat;
349 char *sense;
350
351 sense = (char *) irb->ecw;
352 cstat = irb->scsw.cstat;
353 dstat = irb->scsw.dstat;
354
355 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
356 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
357 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
358 QETH_DBF_TEXT(trace,2, "CGENCHK");
359 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
360 cdev->dev.bus_id, dstat, cstat);
361 HEXDUMP16(WARN, "irb: ", irb);
362 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
363 return 1;
364 }
365
366 if (dstat & DEV_STAT_UNIT_CHECK) {
367 if (sense[SENSE_RESETTING_EVENT_BYTE] &
368 SENSE_RESETTING_EVENT_FLAG) {
369 QETH_DBF_TEXT(trace,2,"REVIND");
370 return 1;
371 }
372 if (sense[SENSE_COMMAND_REJECT_BYTE] &
373 SENSE_COMMAND_REJECT_FLAG) {
374 QETH_DBF_TEXT(trace,2,"CMDREJi");
375 return 0;
376 }
377 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
378 QETH_DBF_TEXT(trace,2,"AFFE");
379 return 1;
380 }
381 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
382 QETH_DBF_TEXT(trace,2,"ZEROSEN");
383 return 0;
384 }
385 QETH_DBF_TEXT(trace,2,"DGENCHK");
386 return 1;
387 }
388 return 0;
389 }
390 static int qeth_issue_next_read(struct qeth_card *);
391
392 /**
393 * interrupt handler
394 */
395 static void
396 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
397 {
398 int rc;
399 int cstat,dstat;
400 struct qeth_cmd_buffer *buffer;
401 struct qeth_channel *channel;
402 struct qeth_card *card;
403
404 QETH_DBF_TEXT(trace,5,"irq");
405
406 if (__qeth_check_irb_error(cdev, irb))
407 return;
408 cstat = irb->scsw.cstat;
409 dstat = irb->scsw.dstat;
410
411 card = CARD_FROM_CDEV(cdev);
412 if (!card)
413 return;
414
415 if (card->read.ccwdev == cdev){
416 channel = &card->read;
417 QETH_DBF_TEXT(trace,5,"read");
418 } else if (card->write.ccwdev == cdev) {
419 channel = &card->write;
420 QETH_DBF_TEXT(trace,5,"write");
421 } else {
422 channel = &card->data;
423 QETH_DBF_TEXT(trace,5,"data");
424 }
425 atomic_set(&channel->irq_pending, 0);
426
427 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
428 channel->state = CH_STATE_STOPPED;
429
430 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
431 channel->state = CH_STATE_HALTED;
432
433 /*let's wake up immediately on data channel*/
434 if ((channel == &card->data) && (intparm != 0))
435 goto out;
436
437 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
438 QETH_DBF_TEXT(trace, 6, "clrchpar");
439 /* we don't have to handle this further */
440 intparm = 0;
441 }
442 if (intparm == QETH_HALT_CHANNEL_PARM) {
443 QETH_DBF_TEXT(trace, 6, "hltchpar");
444 /* we don't have to handle this further */
445 intparm = 0;
446 }
447 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
448 (dstat & DEV_STAT_UNIT_CHECK) ||
449 (cstat)) {
450 if (irb->esw.esw0.erw.cons) {
451 /* TODO: we should make this s390dbf */
452 PRINT_WARN("sense data available on channel %s.\n",
453 CHANNEL_ID(channel));
454 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
455 HEXDUMP16(WARN,"irb: ",irb);
456 HEXDUMP16(WARN,"sense data: ",irb->ecw);
457 }
458 rc = qeth_get_problem(cdev,irb);
459 if (rc) {
460 qeth_schedule_recovery(card);
461 goto out;
462 }
463 }
464
465 if (intparm) {
466 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
467 buffer->state = BUF_STATE_PROCESSED;
468 }
469 if (channel == &card->data)
470 return;
471
472 if (channel == &card->read &&
473 channel->state == CH_STATE_UP)
474 qeth_issue_next_read(card);
475
476 tasklet_schedule(&channel->irq_tasklet);
477 return;
478 out:
479 wake_up(&card->wait_q);
480 }
481
482 /**
483 * tasklet function scheduled from irq handler
484 */
485 static void
486 qeth_irq_tasklet(unsigned long data)
487 {
488 struct qeth_card *card;
489 struct qeth_channel *channel;
490 struct qeth_cmd_buffer *iob;
491 __u8 index;
492
493 QETH_DBF_TEXT(trace,5,"irqtlet");
494 channel = (struct qeth_channel *) data;
495 iob = channel->iob;
496 index = channel->buf_no;
497 card = CARD_FROM_CDEV(channel->ccwdev);
498 while (iob[index].state == BUF_STATE_PROCESSED) {
499 if (iob[index].callback !=NULL) {
500 iob[index].callback(channel,iob + index);
501 }
502 index = (index + 1) % QETH_CMD_BUFFER_NO;
503 }
504 channel->buf_no = index;
505 wake_up(&card->wait_q);
506 }
507
508 static int qeth_stop_card(struct qeth_card *, int);
509
510 static int
511 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
512 {
513 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
514 int rc = 0;
515 enum qeth_card_states recover_flag;
516
517 QETH_DBF_TEXT(setup, 3, "setoffl");
518 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
519
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 if ((rc = ccw_device_set_offline(CARD_DDEV(card))) ||
527 (rc = ccw_device_set_offline(CARD_WDEV(card))) ||
528 (rc = ccw_device_set_offline(CARD_RDEV(card)))) {
529 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
530 }
531 if (recover_flag == CARD_STATE_UP)
532 card->state = CARD_STATE_RECOVER;
533 qeth_notify_processes();
534 return 0;
535 }
536
537 static int
538 qeth_set_offline(struct ccwgroup_device *cgdev)
539 {
540 return __qeth_set_offline(cgdev, 0);
541 }
542
543 static int
544 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
545
546
547 static void
548 qeth_remove_device(struct ccwgroup_device *cgdev)
549 {
550 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
551 unsigned long flags;
552
553 QETH_DBF_TEXT(setup, 3, "rmdev");
554 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
555
556 if (!card)
557 return;
558
559 if (qeth_wait_for_threads(card, 0xffffffff))
560 return;
561
562 if (cgdev->state == CCWGROUP_ONLINE){
563 card->use_hard_stop = 1;
564 qeth_set_offline(cgdev);
565 }
566 /* remove form our internal list */
567 write_lock_irqsave(&qeth_card_list.rwlock, flags);
568 list_del(&card->list);
569 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
570 if (card->dev)
571 unregister_netdev(card->dev);
572 qeth_remove_device_attributes(&cgdev->dev);
573 qeth_free_card(card);
574 cgdev->dev.driver_data = NULL;
575 put_device(&cgdev->dev);
576 }
577
578 static int
579 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
580 static int
581 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
582
583 /**
584 * Add/remove address to/from card's ip list, i.e. try to add or remove
585 * reference to/from an IP address that is already registered on the card.
586 * Returns:
587 * 0 address was on card and its reference count has been adjusted,
588 * but is still > 0, so nothing has to be done
589 * also returns 0 if card was not on card and the todo was to delete
590 * the address -> there is also nothing to be done
591 * 1 address was not on card and the todo is to add it to the card's ip
592 * list
593 * -1 address was on card and its reference count has been decremented
594 * to <= 0 by the todo -> address must be removed from card
595 */
596 static int
597 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
598 struct qeth_ipaddr **__addr)
599 {
600 struct qeth_ipaddr *addr;
601 int found = 0;
602
603 list_for_each_entry(addr, &card->ip_list, entry) {
604 if ((addr->proto == QETH_PROT_IPV4) &&
605 (todo->proto == QETH_PROT_IPV4) &&
606 (addr->type == todo->type) &&
607 (addr->u.a4.addr == todo->u.a4.addr) &&
608 (addr->u.a4.mask == todo->u.a4.mask) ){
609 found = 1;
610 break;
611 }
612 if ((addr->proto == QETH_PROT_IPV6) &&
613 (todo->proto == QETH_PROT_IPV6) &&
614 (addr->type == todo->type) &&
615 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
616 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
617 sizeof(struct in6_addr)) == 0)) {
618 found = 1;
619 break;
620 }
621 }
622 if (found){
623 addr->users += todo->users;
624 if (addr->users <= 0){
625 *__addr = addr;
626 return -1;
627 } else {
628 /* for VIPA and RXIP limit refcount to 1 */
629 if (addr->type != QETH_IP_TYPE_NORMAL)
630 addr->users = 1;
631 return 0;
632 }
633 }
634 if (todo->users > 0){
635 /* for VIPA and RXIP limit refcount to 1 */
636 if (todo->type != QETH_IP_TYPE_NORMAL)
637 todo->users = 1;
638 return 1;
639 } else
640 return 0;
641 }
642
643 static inline int
644 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
645 int same_type)
646 {
647 struct qeth_ipaddr *tmp;
648
649 list_for_each_entry(tmp, list, entry) {
650 if ((tmp->proto == QETH_PROT_IPV4) &&
651 (addr->proto == QETH_PROT_IPV4) &&
652 ((same_type && (tmp->type == addr->type)) ||
653 (!same_type && (tmp->type != addr->type)) ) &&
654 (tmp->u.a4.addr == addr->u.a4.addr) ){
655 return 1;
656 }
657 if ((tmp->proto == QETH_PROT_IPV6) &&
658 (addr->proto == QETH_PROT_IPV6) &&
659 ((same_type && (tmp->type == addr->type)) ||
660 (!same_type && (tmp->type != addr->type)) ) &&
661 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
662 sizeof(struct in6_addr)) == 0) ) {
663 return 1;
664 }
665 }
666 return 0;
667 }
668
669 /*
670 * Add IP to be added to todo list. If there is already an "add todo"
671 * in this list we just incremenent the reference count.
672 * Returns 0 if we just incremented reference count.
673 */
674 static int
675 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
676 {
677 struct qeth_ipaddr *tmp, *t;
678 int found = 0;
679
680 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
681 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
682 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
683 return 0;
684 if ((tmp->proto == QETH_PROT_IPV4) &&
685 (addr->proto == QETH_PROT_IPV4) &&
686 (tmp->type == addr->type) &&
687 (tmp->is_multicast == addr->is_multicast) &&
688 (tmp->u.a4.addr == addr->u.a4.addr) &&
689 (tmp->u.a4.mask == addr->u.a4.mask) ){
690 found = 1;
691 break;
692 }
693 if ((tmp->proto == QETH_PROT_IPV6) &&
694 (addr->proto == QETH_PROT_IPV6) &&
695 (tmp->type == addr->type) &&
696 (tmp->is_multicast == addr->is_multicast) &&
697 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
698 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
699 sizeof(struct in6_addr)) == 0) ){
700 found = 1;
701 break;
702 }
703 }
704 if (found){
705 if (addr->users != 0)
706 tmp->users += addr->users;
707 else
708 tmp->users += add? 1:-1;
709 if (tmp->users == 0){
710 list_del(&tmp->entry);
711 kfree(tmp);
712 }
713 return 0;
714 } else {
715 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
716 list_add(&addr->entry, card->ip_tbd_list);
717 else {
718 if (addr->users == 0)
719 addr->users += add? 1:-1;
720 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
721 qeth_is_addr_covered_by_ipato(card, addr)){
722 QETH_DBF_TEXT(trace, 2, "tkovaddr");
723 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
724 }
725 list_add_tail(&addr->entry, card->ip_tbd_list);
726 }
727 return 1;
728 }
729 }
730
731 /**
732 * Remove IP address from list
733 */
734 static int
735 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
736 {
737 unsigned long flags;
738 int rc = 0;
739
740 QETH_DBF_TEXT(trace,4,"delip");
741 if (addr->proto == QETH_PROT_IPV4)
742 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
743 else {
744 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
745 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
746 }
747 spin_lock_irqsave(&card->ip_lock, flags);
748 rc = __qeth_insert_ip_todo(card, addr, 0);
749 spin_unlock_irqrestore(&card->ip_lock, flags);
750 return rc;
751 }
752
753 static int
754 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
755 {
756 unsigned long flags;
757 int rc = 0;
758
759 QETH_DBF_TEXT(trace,4,"addip");
760 if (addr->proto == QETH_PROT_IPV4)
761 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
762 else {
763 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
764 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
765 }
766 spin_lock_irqsave(&card->ip_lock, flags);
767 rc = __qeth_insert_ip_todo(card, addr, 1);
768 spin_unlock_irqrestore(&card->ip_lock, flags);
769 return rc;
770 }
771
772 static inline void
773 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
774 {
775 struct qeth_ipaddr *addr, *tmp;
776 int rc;
777
778 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
779 if (addr->is_multicast) {
780 spin_unlock_irqrestore(&card->ip_lock, *flags);
781 rc = qeth_deregister_addr_entry(card, addr);
782 spin_lock_irqsave(&card->ip_lock, *flags);
783 if (!rc) {
784 list_del(&addr->entry);
785 kfree(addr);
786 }
787 }
788 }
789 }
790
791 static void
792 qeth_set_ip_addr_list(struct qeth_card *card)
793 {
794 struct list_head *tbd_list;
795 struct qeth_ipaddr *todo, *addr;
796 unsigned long flags;
797 int rc;
798
799 QETH_DBF_TEXT(trace, 2, "sdiplist");
800 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
801
802 spin_lock_irqsave(&card->ip_lock, flags);
803 tbd_list = card->ip_tbd_list;
804 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
805 if (!card->ip_tbd_list) {
806 QETH_DBF_TEXT(trace, 0, "silnomem");
807 card->ip_tbd_list = tbd_list;
808 spin_unlock_irqrestore(&card->ip_lock, flags);
809 return;
810 } else
811 INIT_LIST_HEAD(card->ip_tbd_list);
812
813 while (!list_empty(tbd_list)){
814 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
815 list_del(&todo->entry);
816 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
817 __qeth_delete_all_mc(card, &flags);
818 kfree(todo);
819 continue;
820 }
821 rc = __qeth_ref_ip_on_card(card, todo, &addr);
822 if (rc == 0) {
823 /* nothing to be done; only adjusted refcount */
824 kfree(todo);
825 } else if (rc == 1) {
826 /* new entry to be added to on-card list */
827 spin_unlock_irqrestore(&card->ip_lock, flags);
828 rc = qeth_register_addr_entry(card, todo);
829 spin_lock_irqsave(&card->ip_lock, flags);
830 if (!rc)
831 list_add_tail(&todo->entry, &card->ip_list);
832 else
833 kfree(todo);
834 } else if (rc == -1) {
835 /* on-card entry to be removed */
836 list_del_init(&addr->entry);
837 spin_unlock_irqrestore(&card->ip_lock, flags);
838 rc = qeth_deregister_addr_entry(card, addr);
839 spin_lock_irqsave(&card->ip_lock, flags);
840 if (!rc)
841 kfree(addr);
842 else
843 list_add_tail(&addr->entry, &card->ip_list);
844 kfree(todo);
845 }
846 }
847 spin_unlock_irqrestore(&card->ip_lock, flags);
848 kfree(tbd_list);
849 }
850
851 static void qeth_delete_mc_addresses(struct qeth_card *);
852 static void qeth_add_multicast_ipv4(struct qeth_card *);
853 #ifdef CONFIG_QETH_IPV6
854 static void qeth_add_multicast_ipv6(struct qeth_card *);
855 #endif
856
857 static inline int
858 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
859 {
860 unsigned long flags;
861
862 spin_lock_irqsave(&card->thread_mask_lock, flags);
863 if ( !(card->thread_allowed_mask & thread) ||
864 (card->thread_start_mask & thread) ) {
865 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
866 return -EPERM;
867 }
868 card->thread_start_mask |= thread;
869 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
870 return 0;
871 }
872
873 static void
874 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
875 {
876 unsigned long flags;
877
878 spin_lock_irqsave(&card->thread_mask_lock, flags);
879 card->thread_start_mask &= ~thread;
880 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
881 wake_up(&card->wait_q);
882 }
883
884 static void
885 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
886 {
887 unsigned long flags;
888
889 spin_lock_irqsave(&card->thread_mask_lock, flags);
890 card->thread_running_mask &= ~thread;
891 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
892 wake_up(&card->wait_q);
893 }
894
895 static inline int
896 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
897 {
898 unsigned long flags;
899 int rc = 0;
900
901 spin_lock_irqsave(&card->thread_mask_lock, flags);
902 if (card->thread_start_mask & thread){
903 if ((card->thread_allowed_mask & thread) &&
904 !(card->thread_running_mask & thread)){
905 rc = 1;
906 card->thread_start_mask &= ~thread;
907 card->thread_running_mask |= thread;
908 } else
909 rc = -EPERM;
910 }
911 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
912 return rc;
913 }
914
915 static int
916 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
917 {
918 int rc = 0;
919
920 wait_event(card->wait_q,
921 (rc = __qeth_do_run_thread(card, thread)) >= 0);
922 return rc;
923 }
924
925 static int
926 qeth_register_ip_addresses(void *ptr)
927 {
928 struct qeth_card *card;
929
930 card = (struct qeth_card *) ptr;
931 daemonize("qeth_reg_ip");
932 QETH_DBF_TEXT(trace,4,"regipth1");
933 if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
934 return 0;
935 QETH_DBF_TEXT(trace,4,"regipth2");
936 qeth_set_ip_addr_list(card);
937 qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
938 return 0;
939 }
940
941 static int
942 qeth_recover(void *ptr)
943 {
944 struct qeth_card *card;
945 int rc = 0;
946
947 card = (struct qeth_card *) ptr;
948 daemonize("qeth_recover");
949 QETH_DBF_TEXT(trace,2,"recover1");
950 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
951 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
952 return 0;
953 QETH_DBF_TEXT(trace,2,"recover2");
954 PRINT_WARN("Recovery of device %s started ...\n",
955 CARD_BUS_ID(card));
956 card->use_hard_stop = 1;
957 __qeth_set_offline(card->gdev,1);
958 rc = __qeth_set_online(card->gdev,1);
959 if (!rc)
960 PRINT_INFO("Device %s successfully recovered!\n",
961 CARD_BUS_ID(card));
962 else
963 PRINT_INFO("Device %s could not be recovered!\n",
964 CARD_BUS_ID(card));
965 /* don't run another scheduled recovery */
966 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
967 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
968 return 0;
969 }
970
971 void
972 qeth_schedule_recovery(struct qeth_card *card)
973 {
974 QETH_DBF_TEXT(trace,2,"startrec");
975
976 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
977 schedule_work(&card->kernel_thread_starter);
978 }
979
980 static int
981 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
982 {
983 unsigned long flags;
984 int rc = 0;
985
986 spin_lock_irqsave(&card->thread_mask_lock, flags);
987 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
988 (u8) card->thread_start_mask,
989 (u8) card->thread_allowed_mask,
990 (u8) card->thread_running_mask);
991 rc = (card->thread_start_mask & thread);
992 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
993 return rc;
994 }
995
996 static void
997 qeth_start_kernel_thread(struct qeth_card *card)
998 {
999 QETH_DBF_TEXT(trace , 2, "strthrd");
1000
1001 if (card->read.state != CH_STATE_UP &&
1002 card->write.state != CH_STATE_UP)
1003 return;
1004
1005 if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1006 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1007 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1008 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1009 }
1010
1011
1012 static void
1013 qeth_set_intial_options(struct qeth_card *card)
1014 {
1015 card->options.route4.type = NO_ROUTER;
1016 #ifdef CONFIG_QETH_IPV6
1017 card->options.route6.type = NO_ROUTER;
1018 #endif /* QETH_IPV6 */
1019 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1020 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1021 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1022 card->options.fake_broadcast = 0;
1023 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1024 card->options.fake_ll = 0;
1025 card->options.layer2 = 0;
1026 }
1027
1028 /**
1029 * initialize channels ,card and all state machines
1030 */
1031 static int
1032 qeth_setup_card(struct qeth_card *card)
1033 {
1034
1035 QETH_DBF_TEXT(setup, 2, "setupcrd");
1036 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1037
1038 card->read.state = CH_STATE_DOWN;
1039 card->write.state = CH_STATE_DOWN;
1040 card->data.state = CH_STATE_DOWN;
1041 card->state = CARD_STATE_DOWN;
1042 card->lan_online = 0;
1043 card->use_hard_stop = 0;
1044 card->dev = NULL;
1045 #ifdef CONFIG_QETH_VLAN
1046 spin_lock_init(&card->vlanlock);
1047 card->vlangrp = NULL;
1048 #endif
1049 spin_lock_init(&card->ip_lock);
1050 spin_lock_init(&card->thread_mask_lock);
1051 card->thread_start_mask = 0;
1052 card->thread_allowed_mask = 0;
1053 card->thread_running_mask = 0;
1054 INIT_WORK(&card->kernel_thread_starter,
1055 (void *)qeth_start_kernel_thread,card);
1056 INIT_LIST_HEAD(&card->ip_list);
1057 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1058 if (!card->ip_tbd_list) {
1059 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1060 return -ENOMEM;
1061 }
1062 INIT_LIST_HEAD(card->ip_tbd_list);
1063 INIT_LIST_HEAD(&card->cmd_waiter_list);
1064 init_waitqueue_head(&card->wait_q);
1065 /* intial options */
1066 qeth_set_intial_options(card);
1067 /* IP address takeover */
1068 INIT_LIST_HEAD(&card->ipato.entries);
1069 card->ipato.enabled = 0;
1070 card->ipato.invert4 = 0;
1071 card->ipato.invert6 = 0;
1072 /* init QDIO stuff */
1073 qeth_init_qdio_info(card);
1074 return 0;
1075 }
1076
1077 static int
1078 is_1920_device (struct qeth_card *card)
1079 {
1080 int single_queue = 0;
1081 struct ccw_device *ccwdev;
1082 struct channelPath_dsc {
1083 u8 flags;
1084 u8 lsn;
1085 u8 desc;
1086 u8 chpid;
1087 u8 swla;
1088 u8 zeroes;
1089 u8 chla;
1090 u8 chpp;
1091 } *chp_dsc;
1092
1093 QETH_DBF_TEXT(setup, 2, "chk_1920");
1094
1095 ccwdev = card->data.ccwdev;
1096 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1097 if (chp_dsc != NULL) {
1098 /* CHPP field bit 6 == 1 -> single queue */
1099 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1100 kfree(chp_dsc);
1101 }
1102 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1103 return single_queue;
1104 }
1105
1106 static int
1107 qeth_determine_card_type(struct qeth_card *card)
1108 {
1109 int i = 0;
1110
1111 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1112
1113 while (known_devices[i][4]) {
1114 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1115 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1116 card->info.type = known_devices[i][4];
1117 if (is_1920_device(card)) {
1118 PRINT_INFO("Priority Queueing not able "
1119 "due to hardware limitations!\n");
1120 card->qdio.no_out_queues = 1;
1121 card->qdio.default_out_queue = 0;
1122 } else {
1123 card->qdio.no_out_queues = known_devices[i][8];
1124 }
1125 card->info.is_multicast_different = known_devices[i][9];
1126 return 0;
1127 }
1128 i++;
1129 }
1130 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1131 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1132 return -ENOENT;
1133 }
1134
1135 static int
1136 qeth_probe_device(struct ccwgroup_device *gdev)
1137 {
1138 struct qeth_card *card;
1139 struct device *dev;
1140 unsigned long flags;
1141 int rc;
1142
1143 QETH_DBF_TEXT(setup, 2, "probedev");
1144
1145 dev = &gdev->dev;
1146 if (!get_device(dev))
1147 return -ENODEV;
1148
1149 card = qeth_alloc_card();
1150 if (!card) {
1151 put_device(dev);
1152 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1153 return -ENOMEM;
1154 }
1155 card->read.ccwdev = gdev->cdev[0];
1156 card->write.ccwdev = gdev->cdev[1];
1157 card->data.ccwdev = gdev->cdev[2];
1158
1159 if ((rc = qeth_setup_card(card))){
1160 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1161 put_device(dev);
1162 qeth_free_card(card);
1163 return rc;
1164 }
1165 gdev->dev.driver_data = card;
1166 card->gdev = gdev;
1167 gdev->cdev[0]->handler = qeth_irq;
1168 gdev->cdev[1]->handler = qeth_irq;
1169 gdev->cdev[2]->handler = qeth_irq;
1170
1171 rc = qeth_create_device_attributes(dev);
1172 if (rc) {
1173 put_device(dev);
1174 qeth_free_card(card);
1175 return rc;
1176 }
1177 if ((rc = qeth_determine_card_type(card))){
1178 PRINT_WARN("%s: not a valid card type\n", __func__);
1179 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1180 put_device(dev);
1181 qeth_free_card(card);
1182 return rc;
1183 }
1184 /* insert into our internal list */
1185 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1186 list_add_tail(&card->list, &qeth_card_list.list);
1187 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1188 return rc;
1189 }
1190
1191
1192 static int
1193 qeth_get_unitaddr(struct qeth_card *card)
1194 {
1195 int length;
1196 char *prcd;
1197 int rc;
1198
1199 QETH_DBF_TEXT(setup, 2, "getunit");
1200 rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1201 if (rc) {
1202 PRINT_ERR("read_conf_data for device %s returned %i\n",
1203 CARD_DDEV_ID(card), rc);
1204 return rc;
1205 }
1206 card->info.chpid = prcd[30];
1207 card->info.unit_addr2 = prcd[31];
1208 card->info.cula = prcd[63];
1209 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1210 (prcd[0x11] == _ascebc['M']));
1211 return 0;
1212 }
1213
1214 static void
1215 qeth_init_tokens(struct qeth_card *card)
1216 {
1217 card->token.issuer_rm_w = 0x00010103UL;
1218 card->token.cm_filter_w = 0x00010108UL;
1219 card->token.cm_connection_w = 0x0001010aUL;
1220 card->token.ulp_filter_w = 0x0001010bUL;
1221 card->token.ulp_connection_w = 0x0001010dUL;
1222 }
1223
1224 static inline __u16
1225 raw_devno_from_bus_id(char *id)
1226 {
1227 id += (strlen(id) - 4);
1228 return (__u16) simple_strtoul(id, &id, 16);
1229 }
1230 /**
1231 * setup channel
1232 */
1233 static void
1234 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1235 {
1236 struct qeth_card *card;
1237
1238 QETH_DBF_TEXT(trace, 4, "setupccw");
1239 card = CARD_FROM_CDEV(channel->ccwdev);
1240 if (channel == &card->read)
1241 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1242 else
1243 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1244 channel->ccw.count = len;
1245 channel->ccw.cda = (__u32) __pa(iob);
1246 }
1247
1248 /**
1249 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1250 */
1251 static struct qeth_cmd_buffer *
1252 __qeth_get_buffer(struct qeth_channel *channel)
1253 {
1254 __u8 index;
1255
1256 QETH_DBF_TEXT(trace, 6, "getbuff");
1257 index = channel->io_buf_no;
1258 do {
1259 if (channel->iob[index].state == BUF_STATE_FREE) {
1260 channel->iob[index].state = BUF_STATE_LOCKED;
1261 channel->io_buf_no = (channel->io_buf_no + 1) %
1262 QETH_CMD_BUFFER_NO;
1263 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1264 return channel->iob + index;
1265 }
1266 index = (index + 1) % QETH_CMD_BUFFER_NO;
1267 } while(index != channel->io_buf_no);
1268
1269 return NULL;
1270 }
1271
1272 /**
1273 * release command buffer
1274 */
1275 static void
1276 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1277 {
1278 unsigned long flags;
1279
1280 QETH_DBF_TEXT(trace, 6, "relbuff");
1281 spin_lock_irqsave(&channel->iob_lock, flags);
1282 memset(iob->data, 0, QETH_BUFSIZE);
1283 iob->state = BUF_STATE_FREE;
1284 iob->callback = qeth_send_control_data_cb;
1285 iob->rc = 0;
1286 spin_unlock_irqrestore(&channel->iob_lock, flags);
1287 }
1288
1289 static struct qeth_cmd_buffer *
1290 qeth_get_buffer(struct qeth_channel *channel)
1291 {
1292 struct qeth_cmd_buffer *buffer = NULL;
1293 unsigned long flags;
1294
1295 spin_lock_irqsave(&channel->iob_lock, flags);
1296 buffer = __qeth_get_buffer(channel);
1297 spin_unlock_irqrestore(&channel->iob_lock, flags);
1298 return buffer;
1299 }
1300
1301 static struct qeth_cmd_buffer *
1302 qeth_wait_for_buffer(struct qeth_channel *channel)
1303 {
1304 struct qeth_cmd_buffer *buffer;
1305 wait_event(channel->wait_q,
1306 ((buffer = qeth_get_buffer(channel)) != NULL));
1307 return buffer;
1308 }
1309
1310 static void
1311 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1312 {
1313 int cnt = 0;
1314
1315 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1316 qeth_release_buffer(channel,&channel->iob[cnt]);
1317 channel->buf_no = 0;
1318 channel->io_buf_no = 0;
1319 }
1320
1321 /**
1322 * start IDX for read and write channel
1323 */
1324 static int
1325 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1326 void (*idx_reply_cb)(struct qeth_channel *,
1327 struct qeth_cmd_buffer *))
1328 {
1329 struct qeth_cmd_buffer *iob;
1330 unsigned long flags;
1331 int rc;
1332 struct qeth_card *card;
1333
1334 QETH_DBF_TEXT(setup, 2, "idxanswr");
1335 card = CARD_FROM_CDEV(channel->ccwdev);
1336 iob = qeth_get_buffer(channel);
1337 iob->callback = idx_reply_cb;
1338 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1339 channel->ccw.count = QETH_BUFSIZE;
1340 channel->ccw.cda = (__u32) __pa(iob->data);
1341
1342 wait_event(card->wait_q,
1343 atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1344 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1345 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1346 rc = ccw_device_start(channel->ccwdev,
1347 &channel->ccw,(addr_t) iob, 0, 0);
1348 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1349
1350 if (rc) {
1351 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1352 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1353 atomic_set(&channel->irq_pending, 0);
1354 wake_up(&card->wait_q);
1355 return rc;
1356 }
1357 rc = wait_event_interruptible_timeout(card->wait_q,
1358 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1359 if (rc == -ERESTARTSYS)
1360 return rc;
1361 if (channel->state != CH_STATE_UP){
1362 rc = -ETIME;
1363 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1364 qeth_clear_cmd_buffers(channel);
1365 } else
1366 rc = 0;
1367 return rc;
1368 }
1369
1370 static int
1371 qeth_idx_activate_channel(struct qeth_channel *channel,
1372 void (*idx_reply_cb)(struct qeth_channel *,
1373 struct qeth_cmd_buffer *))
1374 {
1375 struct qeth_card *card;
1376 struct qeth_cmd_buffer *iob;
1377 unsigned long flags;
1378 __u16 temp;
1379 int rc;
1380
1381 card = CARD_FROM_CDEV(channel->ccwdev);
1382
1383 QETH_DBF_TEXT(setup, 2, "idxactch");
1384
1385 iob = qeth_get_buffer(channel);
1386 iob->callback = idx_reply_cb;
1387 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1388 channel->ccw.count = IDX_ACTIVATE_SIZE;
1389 channel->ccw.cda = (__u32) __pa(iob->data);
1390 if (channel == &card->write) {
1391 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1392 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1393 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1394 card->seqno.trans_hdr++;
1395 } else {
1396 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1397 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1398 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1399 }
1400 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1401 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1402 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1403 &card->info.func_level,sizeof(__u16));
1404 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1405 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1406 temp = (card->info.cula << 8) + card->info.unit_addr2;
1407 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1408
1409 wait_event(card->wait_q,
1410 atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1411 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1412 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1413 rc = ccw_device_start(channel->ccwdev,
1414 &channel->ccw,(addr_t) iob, 0, 0);
1415 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1416
1417 if (rc) {
1418 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1419 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1420 atomic_set(&channel->irq_pending, 0);
1421 wake_up(&card->wait_q);
1422 return rc;
1423 }
1424 rc = wait_event_interruptible_timeout(card->wait_q,
1425 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1426 if (rc == -ERESTARTSYS)
1427 return rc;
1428 if (channel->state != CH_STATE_ACTIVATING) {
1429 PRINT_WARN("qeth: IDX activate timed out!\n");
1430 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1431 qeth_clear_cmd_buffers(channel);
1432 return -ETIME;
1433 }
1434 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1435 }
1436
1437 static int
1438 qeth_peer_func_level(int level)
1439 {
1440 if ((level & 0xff) == 8)
1441 return (level & 0xff) + 0x400;
1442 if (((level >> 8) & 3) == 1)
1443 return (level & 0xff) + 0x200;
1444 return level;
1445 }
1446
1447 static void
1448 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1449 {
1450 struct qeth_card *card;
1451 __u16 temp;
1452
1453 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1454
1455 if (channel->state == CH_STATE_DOWN) {
1456 channel->state = CH_STATE_ACTIVATING;
1457 goto out;
1458 }
1459 card = CARD_FROM_CDEV(channel->ccwdev);
1460
1461 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1462 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1463 "reply\n", CARD_WDEV_ID(card));
1464 goto out;
1465 }
1466 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1467 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1468 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1469 "function level mismatch "
1470 "(sent: 0x%x, received: 0x%x)\n",
1471 CARD_WDEV_ID(card), card->info.func_level, temp);
1472 goto out;
1473 }
1474 channel->state = CH_STATE_UP;
1475 out:
1476 qeth_release_buffer(channel, iob);
1477 }
1478
1479 static int
1480 qeth_check_idx_response(unsigned char *buffer)
1481 {
1482 if (!buffer)
1483 return 0;
1484
1485 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1486 if ((buffer[2] & 0xc0) == 0xc0) {
1487 PRINT_WARN("received an IDX TERMINATE "
1488 "with cause code 0x%02x%s\n",
1489 buffer[4],
1490 ((buffer[4] == 0x22) ?
1491 " -- try another portname" : ""));
1492 QETH_DBF_TEXT(trace, 2, "ckidxres");
1493 QETH_DBF_TEXT(trace, 2, " idxterm");
1494 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1495 return -EIO;
1496 }
1497 return 0;
1498 }
1499
1500 static void
1501 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1502 {
1503 struct qeth_card *card;
1504 __u16 temp;
1505
1506 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1507 if (channel->state == CH_STATE_DOWN) {
1508 channel->state = CH_STATE_ACTIVATING;
1509 goto out;
1510 }
1511
1512 card = CARD_FROM_CDEV(channel->ccwdev);
1513 if (qeth_check_idx_response(iob->data)) {
1514 goto out;
1515 }
1516 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1517 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1518 "reply\n", CARD_RDEV_ID(card));
1519 goto out;
1520 }
1521
1522 /**
1523 * temporary fix for microcode bug
1524 * to revert it,replace OR by AND
1525 */
1526 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1527 (card->info.type == QETH_CARD_TYPE_OSAE) )
1528 card->info.portname_required = 1;
1529
1530 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1531 if (temp != qeth_peer_func_level(card->info.func_level)) {
1532 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1533 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1534 CARD_RDEV_ID(card), card->info.func_level, temp);
1535 goto out;
1536 }
1537 memcpy(&card->token.issuer_rm_r,
1538 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1539 QETH_MPC_TOKEN_LENGTH);
1540 memcpy(&card->info.mcl_level[0],
1541 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1542 channel->state = CH_STATE_UP;
1543 out:
1544 qeth_release_buffer(channel,iob);
1545 }
1546
1547 static int
1548 qeth_issue_next_read(struct qeth_card *card)
1549 {
1550 int rc;
1551 struct qeth_cmd_buffer *iob;
1552
1553 QETH_DBF_TEXT(trace,5,"issnxrd");
1554 if (card->read.state != CH_STATE_UP)
1555 return -EIO;
1556 iob = qeth_get_buffer(&card->read);
1557 if (!iob) {
1558 PRINT_WARN("issue_next_read failed: no iob available!\n");
1559 return -ENOMEM;
1560 }
1561 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1562 wait_event(card->wait_q,
1563 atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1564 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1565 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1566 (addr_t) iob, 0, 0);
1567 if (rc) {
1568 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1569 atomic_set(&card->read.irq_pending, 0);
1570 qeth_schedule_recovery(card);
1571 wake_up(&card->wait_q);
1572 }
1573 return rc;
1574 }
1575
1576 static struct qeth_reply *
1577 qeth_alloc_reply(struct qeth_card *card)
1578 {
1579 struct qeth_reply *reply;
1580
1581 reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1582 if (reply){
1583 memset(reply, 0, sizeof(struct qeth_reply));
1584 atomic_set(&reply->refcnt, 1);
1585 reply->card = card;
1586 };
1587 return reply;
1588 }
1589
1590 static void
1591 qeth_get_reply(struct qeth_reply *reply)
1592 {
1593 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1594 atomic_inc(&reply->refcnt);
1595 }
1596
1597 static void
1598 qeth_put_reply(struct qeth_reply *reply)
1599 {
1600 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1601 if (atomic_dec_and_test(&reply->refcnt))
1602 kfree(reply);
1603 }
1604
1605 static void
1606 qeth_cmd_timeout(unsigned long data)
1607 {
1608 struct qeth_reply *reply, *list_reply, *r;
1609 unsigned long flags;
1610
1611 reply = (struct qeth_reply *) data;
1612 spin_lock_irqsave(&reply->card->lock, flags);
1613 list_for_each_entry_safe(list_reply, r,
1614 &reply->card->cmd_waiter_list, list) {
1615 if (reply == list_reply){
1616 qeth_get_reply(reply);
1617 list_del_init(&reply->list);
1618 spin_unlock_irqrestore(&reply->card->lock, flags);
1619 reply->rc = -ETIME;
1620 reply->received = 1;
1621 wake_up(&reply->wait_q);
1622 qeth_put_reply(reply);
1623 return;
1624 }
1625 }
1626 spin_unlock_irqrestore(&reply->card->lock, flags);
1627 }
1628
1629 static void
1630 qeth_reset_ip_addresses(struct qeth_card *card)
1631 {
1632 QETH_DBF_TEXT(trace, 2, "rstipadd");
1633
1634 qeth_clear_ip_list(card, 0, 1);
1635 /* this function will also schedule the SET_IP_THREAD */
1636 qeth_set_multicast_list(card->dev);
1637 }
1638
1639 static struct qeth_ipa_cmd *
1640 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1641 {
1642 struct qeth_ipa_cmd *cmd = NULL;
1643
1644 QETH_DBF_TEXT(trace,5,"chkipad");
1645 if (IS_IPA(iob->data)){
1646 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1647 if (IS_IPA_REPLY(cmd))
1648 return cmd;
1649 else {
1650 switch (cmd->hdr.command) {
1651 case IPA_CMD_STOPLAN:
1652 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1653 "there is a network problem or "
1654 "someone pulled the cable or "
1655 "disabled the port.\n",
1656 QETH_CARD_IFNAME(card),
1657 card->info.chpid);
1658 card->lan_online = 0;
1659 netif_carrier_off(card->dev);
1660 return NULL;
1661 case IPA_CMD_STARTLAN:
1662 PRINT_INFO("Link reestablished on %s "
1663 "(CHPID 0x%X). Scheduling "
1664 "IP address reset.\n",
1665 QETH_CARD_IFNAME(card),
1666 card->info.chpid);
1667 card->lan_online = 1;
1668 netif_carrier_on(card->dev);
1669 qeth_reset_ip_addresses(card);
1670 return NULL;
1671 case IPA_CMD_REGISTER_LOCAL_ADDR:
1672 QETH_DBF_TEXT(trace,3, "irla");
1673 break;
1674 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1675 QETH_DBF_TEXT(trace,3, "urla");
1676 break;
1677 default:
1678 PRINT_WARN("Received data is IPA "
1679 "but not a reply!\n");
1680 break;
1681 }
1682 }
1683 }
1684 return cmd;
1685 }
1686
1687 /**
1688 * wake all waiting ipa commands
1689 */
1690 static void
1691 qeth_clear_ipacmd_list(struct qeth_card *card)
1692 {
1693 struct qeth_reply *reply, *r;
1694 unsigned long flags;
1695
1696 QETH_DBF_TEXT(trace, 4, "clipalst");
1697
1698 spin_lock_irqsave(&card->lock, flags);
1699 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1700 qeth_get_reply(reply);
1701 reply->rc = -EIO;
1702 reply->received = 1;
1703 list_del_init(&reply->list);
1704 wake_up(&reply->wait_q);
1705 qeth_put_reply(reply);
1706 }
1707 spin_unlock_irqrestore(&card->lock, flags);
1708 }
1709
1710 static void
1711 qeth_send_control_data_cb(struct qeth_channel *channel,
1712 struct qeth_cmd_buffer *iob)
1713 {
1714 struct qeth_card *card;
1715 struct qeth_reply *reply, *r;
1716 struct qeth_ipa_cmd *cmd;
1717 unsigned long flags;
1718 int keep_reply;
1719
1720 QETH_DBF_TEXT(trace,4,"sndctlcb");
1721
1722 card = CARD_FROM_CDEV(channel->ccwdev);
1723 if (qeth_check_idx_response(iob->data)) {
1724 qeth_clear_ipacmd_list(card);
1725 qeth_schedule_recovery(card);
1726 goto out;
1727 }
1728
1729 cmd = qeth_check_ipa_data(card, iob);
1730 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1731 goto out;
1732
1733 spin_lock_irqsave(&card->lock, flags);
1734 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1735 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1736 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1737 qeth_get_reply(reply);
1738 list_del_init(&reply->list);
1739 spin_unlock_irqrestore(&card->lock, flags);
1740 keep_reply = 0;
1741 if (reply->callback != NULL) {
1742 if (cmd) {
1743 reply->offset = (__u16)((char*)cmd -
1744 (char *)iob->data);
1745 keep_reply = reply->callback(card,
1746 reply,
1747 (unsigned long)cmd);
1748 }
1749 else
1750 keep_reply = reply->callback(card,
1751 reply,
1752 (unsigned long)iob);
1753 }
1754 if (cmd)
1755 reply->rc = (u16) cmd->hdr.return_code;
1756 else if (iob->rc)
1757 reply->rc = iob->rc;
1758 if (keep_reply) {
1759 spin_lock_irqsave(&card->lock, flags);
1760 list_add_tail(&reply->list,
1761 &card->cmd_waiter_list);
1762 spin_unlock_irqrestore(&card->lock, flags);
1763 } else {
1764 reply->received = 1;
1765 wake_up(&reply->wait_q);
1766 }
1767 qeth_put_reply(reply);
1768 goto out;
1769 }
1770 }
1771 spin_unlock_irqrestore(&card->lock, flags);
1772 out:
1773 memcpy(&card->seqno.pdu_hdr_ack,
1774 QETH_PDU_HEADER_SEQ_NO(iob->data),
1775 QETH_SEQ_NO_LENGTH);
1776 qeth_release_buffer(channel,iob);
1777 }
1778
1779 static int
1780 qeth_send_control_data(struct qeth_card *card, int len,
1781 struct qeth_cmd_buffer *iob,
1782 int (*reply_cb)
1783 (struct qeth_card *, struct qeth_reply*, unsigned long),
1784 void *reply_param)
1785
1786 {
1787 int rc;
1788 unsigned long flags;
1789 struct qeth_reply *reply;
1790 struct timer_list timer;
1791
1792 QETH_DBF_TEXT(trace, 2, "sendctl");
1793
1794 qeth_setup_ccw(&card->write,iob->data,len);
1795
1796 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1797 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1798 card->seqno.trans_hdr++;
1799
1800 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1801 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1802 card->seqno.pdu_hdr++;
1803 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1804 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1805 iob->callback = qeth_release_buffer;
1806
1807 reply = qeth_alloc_reply(card);
1808 if (!reply) {
1809 PRINT_WARN("Could no alloc qeth_reply!\n");
1810 return -ENOMEM;
1811 }
1812 reply->callback = reply_cb;
1813 reply->param = reply_param;
1814 if (card->state == CARD_STATE_DOWN)
1815 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1816 else
1817 reply->seqno = card->seqno.ipa++;
1818 init_timer(&timer);
1819 timer.function = qeth_cmd_timeout;
1820 timer.data = (unsigned long) reply;
1821 if (IS_IPA(iob->data))
1822 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1823 else
1824 timer.expires = jiffies + QETH_TIMEOUT;
1825 init_waitqueue_head(&reply->wait_q);
1826 spin_lock_irqsave(&card->lock, flags);
1827 list_add_tail(&reply->list, &card->cmd_waiter_list);
1828 spin_unlock_irqrestore(&card->lock, flags);
1829 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1830 wait_event(card->wait_q,
1831 atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1832 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1833 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1834 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1835 (addr_t) iob, 0, 0);
1836 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1837 if (rc){
1838 PRINT_WARN("qeth_send_control_data: "
1839 "ccw_device_start rc = %i\n", rc);
1840 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1841 spin_lock_irqsave(&card->lock, flags);
1842 list_del_init(&reply->list);
1843 qeth_put_reply(reply);
1844 spin_unlock_irqrestore(&card->lock, flags);
1845 qeth_release_buffer(iob->channel, iob);
1846 atomic_set(&card->write.irq_pending, 0);
1847 wake_up(&card->wait_q);
1848 return rc;
1849 }
1850 add_timer(&timer);
1851 wait_event(reply->wait_q, reply->received);
1852 del_timer_sync(&timer);
1853 rc = reply->rc;
1854 qeth_put_reply(reply);
1855 return rc;
1856 }
1857
1858 static int
1859 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1860 int (*reply_cb)
1861 (struct qeth_card *,struct qeth_reply*, unsigned long),
1862 void *reply_param)
1863 {
1864 int rc;
1865 char prot_type;
1866
1867 QETH_DBF_TEXT(trace,4,"sendipa");
1868
1869 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1870
1871 if (card->options.layer2)
1872 prot_type = QETH_PROT_LAYER2;
1873 else
1874 prot_type = QETH_PROT_TCPIP;
1875
1876 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1877 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1878 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1879
1880 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1881 reply_cb, reply_param);
1882 return rc;
1883 }
1884
1885
1886 static int
1887 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1888 unsigned long data)
1889 {
1890 struct qeth_cmd_buffer *iob;
1891
1892 QETH_DBF_TEXT(setup, 2, "cmenblcb");
1893
1894 iob = (struct qeth_cmd_buffer *) data;
1895 memcpy(&card->token.cm_filter_r,
1896 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1897 QETH_MPC_TOKEN_LENGTH);
1898 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
1899 return 0;
1900 }
1901
1902 static int
1903 qeth_cm_enable(struct qeth_card *card)
1904 {
1905 int rc;
1906 struct qeth_cmd_buffer *iob;
1907
1908 QETH_DBF_TEXT(setup,2,"cmenable");
1909
1910 iob = qeth_wait_for_buffer(&card->write);
1911 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1912 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1913 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1914 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1915 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1916
1917 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1918 qeth_cm_enable_cb, NULL);
1919 return rc;
1920 }
1921
1922 static int
1923 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1924 unsigned long data)
1925 {
1926
1927 struct qeth_cmd_buffer *iob;
1928
1929 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1930
1931 iob = (struct qeth_cmd_buffer *) data;
1932 memcpy(&card->token.cm_connection_r,
1933 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1934 QETH_MPC_TOKEN_LENGTH);
1935 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
1936 return 0;
1937 }
1938
1939 static int
1940 qeth_cm_setup(struct qeth_card *card)
1941 {
1942 int rc;
1943 struct qeth_cmd_buffer *iob;
1944
1945 QETH_DBF_TEXT(setup,2,"cmsetup");
1946
1947 iob = qeth_wait_for_buffer(&card->write);
1948 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1949 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1950 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1951 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1952 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1953 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1954 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1955 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1956 qeth_cm_setup_cb, NULL);
1957 return rc;
1958
1959 }
1960
1961 static int
1962 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1963 unsigned long data)
1964 {
1965
1966 __u16 mtu, framesize;
1967 __u16 len;
1968 __u8 link_type;
1969 struct qeth_cmd_buffer *iob;
1970
1971 QETH_DBF_TEXT(setup, 2, "ulpenacb");
1972
1973 iob = (struct qeth_cmd_buffer *) data;
1974 memcpy(&card->token.ulp_filter_r,
1975 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1976 QETH_MPC_TOKEN_LENGTH);
1977 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1978 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1979 mtu = qeth_get_mtu_outof_framesize(framesize);
1980 if (!mtu) {
1981 iob->rc = -EINVAL;
1982 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
1983 return 0;
1984 }
1985 card->info.max_mtu = mtu;
1986 card->info.initial_mtu = mtu;
1987 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1988 } else {
1989 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1990 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1991 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1992 }
1993
1994 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1995 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1996 memcpy(&link_type,
1997 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1998 card->info.link_type = link_type;
1999 } else
2000 card->info.link_type = 0;
2001 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2002 return 0;
2003 }
2004
2005 static int
2006 qeth_ulp_enable(struct qeth_card *card)
2007 {
2008 int rc;
2009 char prot_type;
2010 struct qeth_cmd_buffer *iob;
2011
2012 /*FIXME: trace view callbacks*/
2013 QETH_DBF_TEXT(setup,2,"ulpenabl");
2014
2015 iob = qeth_wait_for_buffer(&card->write);
2016 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2017
2018 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2019 (__u8) card->info.portno;
2020 if (card->options.layer2)
2021 prot_type = QETH_PROT_LAYER2;
2022 else
2023 prot_type = QETH_PROT_TCPIP;
2024
2025 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2026 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2027 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2028 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2029 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2030 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2031 card->info.portname, 9);
2032 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2033 qeth_ulp_enable_cb, NULL);
2034 return rc;
2035
2036 }
2037
2038 static inline __u16
2039 __raw_devno_from_bus_id(char *id)
2040 {
2041 id += (strlen(id) - 4);
2042 return (__u16) simple_strtoul(id, &id, 16);
2043 }
2044
2045 static int
2046 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2047 unsigned long data)
2048 {
2049 struct qeth_cmd_buffer *iob;
2050
2051 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2052
2053 iob = (struct qeth_cmd_buffer *) data;
2054 memcpy(&card->token.ulp_connection_r,
2055 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2056 QETH_MPC_TOKEN_LENGTH);
2057 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2058 return 0;
2059 }
2060
2061 static int
2062 qeth_ulp_setup(struct qeth_card *card)
2063 {
2064 int rc;
2065 __u16 temp;
2066 struct qeth_cmd_buffer *iob;
2067
2068 QETH_DBF_TEXT(setup,2,"ulpsetup");
2069
2070 iob = qeth_wait_for_buffer(&card->write);
2071 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2072
2073 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2074 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2075 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2076 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2077 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2078 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2079
2080 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2081 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2082 temp = (card->info.cula << 8) + card->info.unit_addr2;
2083 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2084 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2085 qeth_ulp_setup_cb, NULL);
2086 return rc;
2087 }
2088
2089 static inline int
2090 qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2091 unsigned int qdio_error,
2092 unsigned int siga_error)
2093 {
2094 int rc = 0;
2095
2096 if (qdio_error || siga_error) {
2097 QETH_DBF_TEXT(trace, 2, "qdinerr");
2098 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2099 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2100 buf->buffer->element[15].flags & 0xff);
2101 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2102 buf->buffer->element[14].flags & 0xff);
2103 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2104 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2105 rc = 1;
2106 }
2107 return rc;
2108 }
2109
2110 static inline struct sk_buff *
2111 qeth_get_skb(unsigned int length)
2112 {
2113 struct sk_buff* skb;
2114 #ifdef CONFIG_QETH_VLAN
2115 if ((skb = dev_alloc_skb(length + VLAN_HLEN)))
2116 skb_reserve(skb, VLAN_HLEN);
2117 #else
2118 skb = dev_alloc_skb(length);
2119 #endif
2120 return skb;
2121 }
2122
2123 static inline struct sk_buff *
2124 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2125 struct qdio_buffer_element **__element, int *__offset,
2126 struct qeth_hdr **hdr)
2127 {
2128 struct qdio_buffer_element *element = *__element;
2129 int offset = *__offset;
2130 struct sk_buff *skb = NULL;
2131 int skb_len;
2132 void *data_ptr;
2133 int data_len;
2134
2135 QETH_DBF_TEXT(trace,6,"nextskb");
2136 /* qeth_hdr must not cross element boundaries */
2137 if (element->length < offset + sizeof(struct qeth_hdr)){
2138 if (qeth_is_last_sbale(element))
2139 return NULL;
2140 element++;
2141 offset = 0;
2142 if (element->length < sizeof(struct qeth_hdr))
2143 return NULL;
2144 }
2145 *hdr = element->addr + offset;
2146
2147 offset += sizeof(struct qeth_hdr);
2148 if (card->options.layer2)
2149 skb_len = (*hdr)->hdr.l2.pkt_length;
2150 else
2151 skb_len = (*hdr)->hdr.l3.length;
2152
2153 if (!skb_len)
2154 return NULL;
2155 if (card->options.fake_ll){
2156 if(card->dev->type == ARPHRD_IEEE802_TR){
2157 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR)))
2158 goto no_mem;
2159 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2160 } else {
2161 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH)))
2162 goto no_mem;
2163 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2164 }
2165 } else if (!(skb = qeth_get_skb(skb_len)))
2166 goto no_mem;
2167 data_ptr = element->addr + offset;
2168 while (skb_len) {
2169 data_len = min(skb_len, (int)(element->length - offset));
2170 if (data_len)
2171 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2172 skb_len -= data_len;
2173 if (skb_len){
2174 if (qeth_is_last_sbale(element)){
2175 QETH_DBF_TEXT(trace,4,"unexeob");
2176 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2177 QETH_DBF_TEXT(qerr,2,"unexeob");
2178 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2179 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2180 dev_kfree_skb_any(skb);
2181 card->stats.rx_errors++;
2182 return NULL;
2183 }
2184 element++;
2185 offset = 0;
2186 data_ptr = element->addr;
2187 } else {
2188 offset += data_len;
2189 }
2190 }
2191 *__element = element;
2192 *__offset = offset;
2193 return skb;
2194 no_mem:
2195 if (net_ratelimit()){
2196 PRINT_WARN("No memory for packet received on %s.\n",
2197 QETH_CARD_IFNAME(card));
2198 QETH_DBF_TEXT(trace,2,"noskbmem");
2199 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2200 }
2201 card->stats.rx_dropped++;
2202 return NULL;
2203 }
2204
2205 static inline __be16
2206 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2207 {
2208 struct qeth_card *card;
2209 struct ethhdr *eth;
2210
2211 QETH_DBF_TEXT(trace,6,"typtrans");
2212
2213 card = (struct qeth_card *)dev->priv;
2214 #ifdef CONFIG_TR
2215 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2216 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2217 return tr_type_trans(skb,dev);
2218 #endif /* CONFIG_TR */
2219 skb->mac.raw = skb->data;
2220 skb_pull(skb, ETH_HLEN );
2221 eth = eth_hdr(skb);
2222
2223 if (*eth->h_dest & 1) {
2224 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2225 skb->pkt_type = PACKET_BROADCAST;
2226 else
2227 skb->pkt_type = PACKET_MULTICAST;
2228 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2229 skb->pkt_type = PACKET_OTHERHOST;
2230
2231 if (ntohs(eth->h_proto) >= 1536)
2232 return eth->h_proto;
2233 if (*(unsigned short *) (skb->data) == 0xFFFF)
2234 return htons(ETH_P_802_3);
2235 return htons(ETH_P_802_2);
2236 }
2237
2238 static inline void
2239 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2240 struct qeth_hdr *hdr)
2241 {
2242 struct trh_hdr *fake_hdr;
2243 struct trllc *fake_llc;
2244 struct iphdr *ip_hdr;
2245
2246 QETH_DBF_TEXT(trace,5,"skbfktr");
2247 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2248 /* this is a fake ethernet header */
2249 fake_hdr = (struct trh_hdr *) skb->mac.raw;
2250
2251 /* the destination MAC address */
2252 switch (skb->pkt_type){
2253 case PACKET_MULTICAST:
2254 switch (skb->protocol){
2255 #ifdef CONFIG_QETH_IPV6
2256 case __constant_htons(ETH_P_IPV6):
2257 ndisc_mc_map((struct in6_addr *)
2258 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2259 fake_hdr->daddr, card->dev, 0);
2260 break;
2261 #endif /* CONFIG_QETH_IPV6 */
2262 case __constant_htons(ETH_P_IP):
2263 ip_hdr = (struct iphdr *)skb->data;
2264 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2265 break;
2266 default:
2267 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2268 }
2269 break;
2270 case PACKET_BROADCAST:
2271 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2272 break;
2273 default:
2274 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2275 }
2276 /* the source MAC address */
2277 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2278 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2279 else
2280 memset(fake_hdr->saddr, 0, TR_ALEN);
2281 fake_hdr->rcf=0;
2282 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2283 fake_llc->dsap = EXTENDED_SAP;
2284 fake_llc->ssap = EXTENDED_SAP;
2285 fake_llc->llc = UI_CMD;
2286 fake_llc->protid[0] = 0;
2287 fake_llc->protid[1] = 0;
2288 fake_llc->protid[2] = 0;
2289 fake_llc->ethertype = ETH_P_IP;
2290 }
2291
2292 static inline void
2293 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2294 struct qeth_hdr *hdr)
2295 {
2296 struct ethhdr *fake_hdr;
2297 struct iphdr *ip_hdr;
2298
2299 QETH_DBF_TEXT(trace,5,"skbfketh");
2300 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2301 /* this is a fake ethernet header */
2302 fake_hdr = (struct ethhdr *) skb->mac.raw;
2303
2304 /* the destination MAC address */
2305 switch (skb->pkt_type){
2306 case PACKET_MULTICAST:
2307 switch (skb->protocol){
2308 #ifdef CONFIG_QETH_IPV6
2309 case __constant_htons(ETH_P_IPV6):
2310 ndisc_mc_map((struct in6_addr *)
2311 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2312 fake_hdr->h_dest, card->dev, 0);
2313 break;
2314 #endif /* CONFIG_QETH_IPV6 */
2315 case __constant_htons(ETH_P_IP):
2316 ip_hdr = (struct iphdr *)skb->data;
2317 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2318 break;
2319 default:
2320 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2321 }
2322 break;
2323 case PACKET_BROADCAST:
2324 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2325 break;
2326 default:
2327 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2328 }
2329 /* the source MAC address */
2330 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2331 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2332 else
2333 memset(fake_hdr->h_source, 0, ETH_ALEN);
2334 /* the protocol */
2335 fake_hdr->h_proto = skb->protocol;
2336 }
2337
2338 static inline void
2339 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2340 struct qeth_hdr *hdr)
2341 {
2342 if (card->dev->type == ARPHRD_IEEE802_TR)
2343 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2344 else
2345 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2346 }
2347
2348 static inline void
2349 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2350 struct qeth_hdr *hdr)
2351 {
2352 #ifdef CONFIG_QETH_VLAN
2353 u16 *vlan_tag;
2354
2355 if (hdr->hdr.l3.ext_flags &
2356 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2357 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2358 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2359 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2360 *(vlan_tag + 1) = skb->protocol;
2361 skb->protocol = __constant_htons(ETH_P_8021Q);
2362 }
2363 #endif /* CONFIG_QETH_VLAN */
2364 }
2365
2366 static inline __u16
2367 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2368 struct qeth_hdr *hdr)
2369 {
2370 unsigned short vlan_id = 0;
2371 #ifdef CONFIG_QETH_VLAN
2372 struct vlan_hdr *vhdr;
2373 #endif
2374
2375 skb->pkt_type = PACKET_HOST;
2376 skb->protocol = qeth_type_trans(skb, skb->dev);
2377 if (card->options.checksum_type == NO_CHECKSUMMING)
2378 skb->ip_summed = CHECKSUM_UNNECESSARY;
2379 else
2380 skb->ip_summed = CHECKSUM_NONE;
2381 #ifdef CONFIG_QETH_VLAN
2382 if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2383 vhdr = (struct vlan_hdr *) skb->data;
2384 skb->protocol =
2385 __constant_htons(vhdr->h_vlan_encapsulated_proto);
2386 vlan_id = hdr->hdr.l2.vlan_id;
2387 skb_pull(skb, VLAN_HLEN);
2388 }
2389 #endif
2390 return vlan_id;
2391 }
2392
2393 static inline void
2394 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2395 struct qeth_hdr *hdr)
2396 {
2397 #ifdef CONFIG_QETH_IPV6
2398 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2399 skb->pkt_type = PACKET_HOST;
2400 skb->protocol = qeth_type_trans(skb, card->dev);
2401 return;
2402 }
2403 #endif /* CONFIG_QETH_IPV6 */
2404 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2405 ETH_P_IP);
2406 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2407 case QETH_CAST_UNICAST:
2408 skb->pkt_type = PACKET_HOST;
2409 break;
2410 case QETH_CAST_MULTICAST:
2411 skb->pkt_type = PACKET_MULTICAST;
2412 card->stats.multicast++;
2413 break;
2414 case QETH_CAST_BROADCAST:
2415 skb->pkt_type = PACKET_BROADCAST;
2416 card->stats.multicast++;
2417 break;
2418 case QETH_CAST_ANYCAST:
2419 case QETH_CAST_NOCAST:
2420 default:
2421 skb->pkt_type = PACKET_HOST;
2422 }
2423 qeth_rebuild_skb_vlan(card, skb, hdr);
2424 if (card->options.fake_ll)
2425 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2426 else
2427 skb->mac.raw = skb->data;
2428 skb->ip_summed = card->options.checksum_type;
2429 if (card->options.checksum_type == HW_CHECKSUMMING){
2430 if ( (hdr->hdr.l3.ext_flags &
2431 (QETH_HDR_EXT_CSUM_HDR_REQ |
2432 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2433 (QETH_HDR_EXT_CSUM_HDR_REQ |
2434 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2435 skb->ip_summed = CHECKSUM_UNNECESSARY;
2436 else
2437 skb->ip_summed = SW_CHECKSUMMING;
2438 }
2439 }
2440
2441 static inline void
2442 qeth_process_inbound_buffer(struct qeth_card *card,
2443 struct qeth_qdio_buffer *buf, int index)
2444 {
2445 struct qdio_buffer_element *element;
2446 struct sk_buff *skb;
2447 struct qeth_hdr *hdr;
2448 int offset;
2449 int rxrc;
2450 __u16 vlan_tag = 0;
2451
2452 /* get first element of current buffer */
2453 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2454 offset = 0;
2455 #ifdef CONFIG_QETH_PERF_STATS
2456 card->perf_stats.bufs_rec++;
2457 #endif
2458 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2459 &offset, &hdr))) {
2460 skb->dev = card->dev;
2461 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2462 vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2463 else
2464 qeth_rebuild_skb(card, skb, hdr);
2465 /* is device UP ? */
2466 if (!(card->dev->flags & IFF_UP)){
2467 dev_kfree_skb_any(skb);
2468 continue;
2469 }
2470 #ifdef CONFIG_QETH_VLAN
2471 if (vlan_tag)
2472 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2473 else
2474 #endif
2475 rxrc = netif_rx(skb);
2476 card->dev->last_rx = jiffies;
2477 card->stats.rx_packets++;
2478 card->stats.rx_bytes += skb->len;
2479 }
2480 }
2481
2482 static inline struct qeth_buffer_pool_entry *
2483 qeth_get_buffer_pool_entry(struct qeth_card *card)
2484 {
2485 struct qeth_buffer_pool_entry *entry;
2486
2487 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2488 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2489 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2490 struct qeth_buffer_pool_entry, list);
2491 list_del_init(&entry->list);
2492 return entry;
2493 }
2494 return NULL;
2495 }
2496
2497 static inline void
2498 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2499 {
2500 struct qeth_buffer_pool_entry *pool_entry;
2501 int i;
2502
2503 pool_entry = qeth_get_buffer_pool_entry(card);
2504 /*
2505 * since the buffer is accessed only from the input_tasklet
2506 * there shouldn't be a need to synchronize; also, since we use
2507 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2508 * buffers
2509 */
2510 BUG_ON(!pool_entry);
2511
2512 buf->pool_entry = pool_entry;
2513 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2514 buf->buffer->element[i].length = PAGE_SIZE;
2515 buf->buffer->element[i].addr = pool_entry->elements[i];
2516 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2517 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2518 else
2519 buf->buffer->element[i].flags = 0;
2520 }
2521 buf->state = QETH_QDIO_BUF_EMPTY;
2522 }
2523
2524 static inline void
2525 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2526 struct qeth_qdio_out_buffer *buf)
2527 {
2528 int i;
2529 struct sk_buff *skb;
2530
2531 /* is PCI flag set on buffer? */
2532 if (buf->buffer->element[0].flags & 0x40)
2533 atomic_dec(&queue->set_pci_flags_count);
2534
2535 while ((skb = skb_dequeue(&buf->skb_list))){
2536 atomic_dec(&skb->users);
2537 dev_kfree_skb_any(skb);
2538 }
2539 qeth_eddp_buf_release_contexts(buf);
2540 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2541 buf->buffer->element[i].length = 0;
2542 buf->buffer->element[i].addr = NULL;
2543 buf->buffer->element[i].flags = 0;
2544 }
2545 buf->next_element_to_fill = 0;
2546 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2547 }
2548
2549 static inline void
2550 qeth_queue_input_buffer(struct qeth_card *card, int index)
2551 {
2552 struct qeth_qdio_q *queue = card->qdio.in_q;
2553 int count;
2554 int i;
2555 int rc;
2556
2557 QETH_DBF_TEXT(trace,6,"queinbuf");
2558 count = (index < queue->next_buf_to_init)?
2559 card->qdio.in_buf_pool.buf_count -
2560 (queue->next_buf_to_init - index) :
2561 card->qdio.in_buf_pool.buf_count -
2562 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2563 /* only requeue at a certain threshold to avoid SIGAs */
2564 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2565 for (i = queue->next_buf_to_init;
2566 i < queue->next_buf_to_init + count; ++i)
2567 qeth_init_input_buffer(card,
2568 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2569 /*
2570 * according to old code it should be avoided to requeue all
2571 * 128 buffers in order to benefit from PCI avoidance.
2572 * this function keeps at least one buffer (the buffer at
2573 * 'index') un-requeued -> this buffer is the first buffer that
2574 * will be requeued the next time
2575 */
2576 #ifdef CONFIG_QETH_PERF_STATS
2577 card->perf_stats.inbound_do_qdio_cnt++;
2578 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2579 #endif
2580 rc = do_QDIO(CARD_DDEV(card),
2581 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2582 0, queue->next_buf_to_init, count, NULL);
2583 #ifdef CONFIG_QETH_PERF_STATS
2584 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2585 card->perf_stats.inbound_do_qdio_start_time;
2586 #endif
2587 if (rc){
2588 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2589 "return %i (device %s).\n",
2590 rc, CARD_DDEV_ID(card));
2591 QETH_DBF_TEXT(trace,2,"qinberr");
2592 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2593 }
2594 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2595 QDIO_MAX_BUFFERS_PER_Q;
2596 }
2597 }
2598
2599 static inline void
2600 qeth_put_buffer_pool_entry(struct qeth_card *card,
2601 struct qeth_buffer_pool_entry *entry)
2602 {
2603 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2604 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2605 }
2606
2607 static void
2608 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2609 unsigned int qdio_err, unsigned int siga_err,
2610 unsigned int queue, int first_element, int count,
2611 unsigned long card_ptr)
2612 {
2613 struct net_device *net_dev;
2614 struct qeth_card *card;
2615 struct qeth_qdio_buffer *buffer;
2616 int index;
2617 int i;
2618
2619 QETH_DBF_TEXT(trace, 6, "qdinput");
2620 card = (struct qeth_card *) card_ptr;
2621 net_dev = card->dev;
2622 #ifdef CONFIG_QETH_PERF_STATS
2623 card->perf_stats.inbound_cnt++;
2624 card->perf_stats.inbound_start_time = qeth_get_micros();
2625 #endif
2626 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2627 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2628 QETH_DBF_TEXT(trace, 1,"qdinchk");
2629 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2630 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2631 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2632 qeth_schedule_recovery(card);
2633 return;
2634 }
2635 }
2636 for (i = first_element; i < (first_element + count); ++i) {
2637 index = i % QDIO_MAX_BUFFERS_PER_Q;
2638 buffer = &card->qdio.in_q->bufs[index];
2639 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2640 qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2641 qeth_process_inbound_buffer(card, buffer, index);
2642 /* clear buffer and give back to hardware */
2643 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2644 qeth_queue_input_buffer(card, index);
2645 }
2646 #ifdef CONFIG_QETH_PERF_STATS
2647 card->perf_stats.inbound_time += qeth_get_micros() -
2648 card->perf_stats.inbound_start_time;
2649 #endif
2650 }
2651
2652 static inline int
2653 qeth_handle_send_error(struct qeth_card *card,
2654 struct qeth_qdio_out_buffer *buffer,
2655 int qdio_err, int siga_err)
2656 {
2657 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2658 int cc = siga_err & 3;
2659
2660 QETH_DBF_TEXT(trace, 6, "hdsnderr");
2661 switch (cc) {
2662 case 0:
2663 if (qdio_err){
2664 QETH_DBF_TEXT(trace, 1,"lnkfail");
2665 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2666 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2667 (u16)qdio_err, (u8)sbalf15);
2668 return QETH_SEND_ERROR_LINK_FAILURE;
2669 }
2670 return QETH_SEND_ERROR_NONE;
2671 case 2:
2672 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2673 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2674 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2675 return QETH_SEND_ERROR_KICK_IT;
2676 }
2677 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2678 return QETH_SEND_ERROR_RETRY;
2679 return QETH_SEND_ERROR_LINK_FAILURE;
2680 /* look at qdio_error and sbalf 15 */
2681 case 1:
2682 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2683 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2684 return QETH_SEND_ERROR_LINK_FAILURE;
2685 case 3:
2686 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2687 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2688 return QETH_SEND_ERROR_KICK_IT;
2689 }
2690 return QETH_SEND_ERROR_LINK_FAILURE;
2691 }
2692
2693 void
2694 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2695 int index, int count)
2696 {
2697 struct qeth_qdio_out_buffer *buf;
2698 int rc;
2699 int i;
2700
2701 QETH_DBF_TEXT(trace, 6, "flushbuf");
2702
2703 for (i = index; i < index + count; ++i) {
2704 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2705 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2706 SBAL_FLAGS_LAST_ENTRY;
2707
2708 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2709 continue;
2710
2711 if (!queue->do_pack){
2712 if ((atomic_read(&queue->used_buffers) >=
2713 (QETH_HIGH_WATERMARK_PACK -
2714 QETH_WATERMARK_PACK_FUZZ)) &&
2715 !atomic_read(&queue->set_pci_flags_count)){
2716 /* it's likely that we'll go to packing
2717 * mode soon */
2718 atomic_inc(&queue->set_pci_flags_count);
2719 buf->buffer->element[0].flags |= 0x40;
2720 }
2721 } else {
2722 if (!atomic_read(&queue->set_pci_flags_count)){
2723 /*
2724 * there's no outstanding PCI any more, so we
2725 * have to request a PCI to be sure the the PCI
2726 * will wake at some time in the future then we
2727 * can flush packed buffers that might still be
2728 * hanging around, which can happen if no
2729 * further send was requested by the stack
2730 */
2731 atomic_inc(&queue->set_pci_flags_count);
2732 buf->buffer->element[0].flags |= 0x40;
2733 }
2734 }
2735 }
2736
2737 queue->card->dev->trans_start = jiffies;
2738 #ifdef CONFIG_QETH_PERF_STATS
2739 queue->card->perf_stats.outbound_do_qdio_cnt++;
2740 queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2741 #endif
2742 if (under_int)
2743 rc = do_QDIO(CARD_DDEV(queue->card),
2744 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2745 queue->queue_no, index, count, NULL);
2746 else
2747 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2748 queue->queue_no, index, count, NULL);
2749 #ifdef CONFIG_QETH_PERF_STATS
2750 queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2751 queue->card->perf_stats.outbound_do_qdio_start_time;
2752 #endif
2753 if (rc){
2754 QETH_DBF_TEXT(trace, 2, "flushbuf");
2755 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2756 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2757 queue->card->stats.tx_errors += count;
2758 /* this must not happen under normal circumstances. if it
2759 * happens something is really wrong -> recover */
2760 qeth_schedule_recovery(queue->card);
2761 return;
2762 }
2763 atomic_add(count, &queue->used_buffers);
2764 #ifdef CONFIG_QETH_PERF_STATS
2765 queue->card->perf_stats.bufs_sent += count;
2766 #endif
2767 }
2768
2769 /*
2770 * Switched to packing state if the number of used buffers on a queue
2771 * reaches a certain limit.
2772 */
2773 static inline void
2774 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2775 {
2776 if (!queue->do_pack) {
2777 if (atomic_read(&queue->used_buffers)
2778 >= QETH_HIGH_WATERMARK_PACK){
2779 /* switch non-PACKING -> PACKING */
2780 QETH_DBF_TEXT(trace, 6, "np->pack");
2781 #ifdef CONFIG_QETH_PERF_STATS
2782 queue->card->perf_stats.sc_dp_p++;
2783 #endif
2784 queue->do_pack = 1;
2785 }
2786 }
2787 }
2788
2789 /*
2790 * Switches from packing to non-packing mode. If there is a packing
2791 * buffer on the queue this buffer will be prepared to be flushed.
2792 * In that case 1 is returned to inform the caller. If no buffer
2793 * has to be flushed, zero is returned.
2794 */
2795 static inline int
2796 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2797 {
2798 struct qeth_qdio_out_buffer *buffer;
2799 int flush_count = 0;
2800
2801 if (queue->do_pack) {
2802 if (atomic_read(&queue->used_buffers)
2803 <= QETH_LOW_WATERMARK_PACK) {
2804 /* switch PACKING -> non-PACKING */
2805 QETH_DBF_TEXT(trace, 6, "pack->np");
2806 #ifdef CONFIG_QETH_PERF_STATS
2807 queue->card->perf_stats.sc_p_dp++;
2808 #endif
2809 queue->do_pack = 0;
2810 /* flush packing buffers */
2811 buffer = &queue->bufs[queue->next_buf_to_fill];
2812 if ((atomic_read(&buffer->state) ==
2813 QETH_QDIO_BUF_EMPTY) &&
2814 (buffer->next_element_to_fill > 0)) {
2815 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2816 flush_count++;
2817 queue->next_buf_to_fill =
2818 (queue->next_buf_to_fill + 1) %
2819 QDIO_MAX_BUFFERS_PER_Q;
2820 }
2821 }
2822 }
2823 return flush_count;
2824 }
2825
2826 /*
2827 * Called to flush a packing buffer if no more pci flags are on the queue.
2828 * Checks if there is a packing buffer and prepares it to be flushed.
2829 * In that case returns 1, otherwise zero.
2830 */
2831 static inline int
2832 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2833 {
2834 struct qeth_qdio_out_buffer *buffer;
2835
2836 buffer = &queue->bufs[queue->next_buf_to_fill];
2837 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2838 (buffer->next_element_to_fill > 0)){
2839 /* it's a packing buffer */
2840 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2841 queue->next_buf_to_fill =
2842 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2843 return 1;
2844 }
2845 return 0;
2846 }
2847
2848 static inline void
2849 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2850 {
2851 int index;
2852 int flush_cnt = 0;
2853 int q_was_packing = 0;
2854
2855 /*
2856 * check if weed have to switch to non-packing mode or if
2857 * we have to get a pci flag out on the queue
2858 */
2859 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2860 !atomic_read(&queue->set_pci_flags_count)){
2861 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2862 QETH_OUT_Q_UNLOCKED) {
2863 /*
2864 * If we get in here, there was no action in
2865 * do_send_packet. So, we check if there is a
2866 * packing buffer to be flushed here.
2867 */
2868 netif_stop_queue(queue->card->dev);
2869 index = queue->next_buf_to_fill;
2870 q_was_packing = queue->do_pack;
2871 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2872 if (!flush_cnt &&
2873 !atomic_read(&queue->set_pci_flags_count))
2874 flush_cnt +=
2875 qeth_flush_buffers_on_no_pci(queue);
2876 #ifdef CONFIG_QETH_PERF_STATS
2877 if (q_was_packing)
2878 queue->card->perf_stats.bufs_sent_pack +=
2879 flush_cnt;
2880 #endif
2881 if (flush_cnt)
2882 qeth_flush_buffers(queue, 1, index, flush_cnt);
2883 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2884 }
2885 }
2886 }
2887
2888 static void
2889 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2890 unsigned int qdio_error, unsigned int siga_error,
2891 unsigned int __queue, int first_element, int count,
2892 unsigned long card_ptr)
2893 {
2894 struct qeth_card *card = (struct qeth_card *) card_ptr;
2895 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2896 struct qeth_qdio_out_buffer *buffer;
2897 int i;
2898
2899 QETH_DBF_TEXT(trace, 6, "qdouhdl");
2900 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2901 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2902 QETH_DBF_TEXT(trace, 2, "achkcond");
2903 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
2904 QETH_DBF_TEXT_(trace, 2, "%08x", status);
2905 netif_stop_queue(card->dev);
2906 qeth_schedule_recovery(card);
2907 return;
2908 }
2909 }
2910 #ifdef CONFIG_QETH_PERF_STATS
2911 card->perf_stats.outbound_handler_cnt++;
2912 card->perf_stats.outbound_handler_start_time = qeth_get_micros();
2913 #endif
2914 for(i = first_element; i < (first_element + count); ++i){
2915 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2916 /*we only handle the KICK_IT error by doing a recovery */
2917 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
2918 == QETH_SEND_ERROR_KICK_IT){
2919 netif_stop_queue(card->dev);
2920 qeth_schedule_recovery(card);
2921 return;
2922 }
2923 qeth_clear_output_buffer(queue, buffer);
2924 }
2925 atomic_sub(count, &queue->used_buffers);
2926 /* check if we need to do something on this outbound queue */
2927 if (card->info.type != QETH_CARD_TYPE_IQD)
2928 qeth_check_outbound_queue(queue);
2929
2930 netif_wake_queue(queue->card->dev);
2931 #ifdef CONFIG_QETH_PERF_STATS
2932 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2933 card->perf_stats.outbound_handler_start_time;
2934 #endif
2935 }
2936
2937 static void
2938 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
2939 {
2940
2941 param_field[0] = _ascebc['P'];
2942 param_field[1] = _ascebc['C'];
2943 param_field[2] = _ascebc['I'];
2944 param_field[3] = _ascebc['T'];
2945 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2946 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2947 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2948 }
2949
2950 static void
2951 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
2952 {
2953 param_field[16] = _ascebc['B'];
2954 param_field[17] = _ascebc['L'];
2955 param_field[18] = _ascebc['K'];
2956 param_field[19] = _ascebc['T'];
2957 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
2958 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
2959 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
2960 }
2961
2962 static void
2963 qeth_initialize_working_pool_list(struct qeth_card *card)
2964 {
2965 struct qeth_buffer_pool_entry *entry;
2966
2967 QETH_DBF_TEXT(trace,5,"inwrklst");
2968
2969 list_for_each_entry(entry,
2970 &card->qdio.init_pool.entry_list, init_list) {
2971 qeth_put_buffer_pool_entry(card,entry);
2972 }
2973 }
2974
2975 static void
2976 qeth_clear_working_pool_list(struct qeth_card *card)
2977 {
2978 struct qeth_buffer_pool_entry *pool_entry, *tmp;
2979
2980 QETH_DBF_TEXT(trace,5,"clwrklst");
2981 list_for_each_entry_safe(pool_entry, tmp,
2982 &card->qdio.in_buf_pool.entry_list, list){
2983 list_del(&pool_entry->list);
2984 }
2985 }
2986
2987 static void
2988 qeth_free_buffer_pool(struct qeth_card *card)
2989 {
2990 struct qeth_buffer_pool_entry *pool_entry, *tmp;
2991 int i=0;
2992 QETH_DBF_TEXT(trace,5,"freepool");
2993 list_for_each_entry_safe(pool_entry, tmp,
2994 &card->qdio.init_pool.entry_list, init_list){
2995 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
2996 free_page((unsigned long)pool_entry->elements[i]);
2997 list_del(&pool_entry->init_list);
2998 kfree(pool_entry);
2999 }
3000 }
3001
3002 static int
3003 qeth_alloc_buffer_pool(struct qeth_card *card)
3004 {
3005 struct qeth_buffer_pool_entry *pool_entry;
3006 void *ptr;
3007 int i, j;
3008
3009 QETH_DBF_TEXT(trace,5,"alocpool");
3010 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3011 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3012 if (!pool_entry){
3013 qeth_free_buffer_pool(card);
3014 return -ENOMEM;
3015 }
3016 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3017 ptr = (void *) __get_free_page(GFP_KERNEL);
3018 if (!ptr) {
3019 while (j > 0)
3020 free_page((unsigned long)
3021 pool_entry->elements[--j]);
3022 kfree(pool_entry);
3023 qeth_free_buffer_pool(card);
3024 return -ENOMEM;
3025 }
3026 pool_entry->elements[j] = ptr;
3027 }
3028 list_add(&pool_entry->init_list,
3029 &card->qdio.init_pool.entry_list);
3030 }
3031 return 0;
3032 }
3033
3034 int
3035 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3036 {
3037 QETH_DBF_TEXT(trace, 2, "realcbp");
3038
3039 if ((card->state != CARD_STATE_DOWN) &&
3040 (card->state != CARD_STATE_RECOVER))
3041 return -EPERM;
3042
3043 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3044 qeth_clear_working_pool_list(card);
3045 qeth_free_buffer_pool(card);
3046 card->qdio.in_buf_pool.buf_count = bufcnt;
3047 card->qdio.init_pool.buf_count = bufcnt;
3048 return qeth_alloc_buffer_pool(card);
3049 }
3050
3051 static int
3052 qeth_alloc_qdio_buffers(struct qeth_card *card)
3053 {
3054 int i, j;
3055
3056 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3057
3058 if (card->qdio.state == QETH_QDIO_ALLOCATED)
3059 return 0;
3060
3061 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL);
3062 if (!card->qdio.in_q)
3063 return - ENOMEM;
3064 QETH_DBF_TEXT(setup, 2, "inq");
3065 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3066 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3067 /* give inbound qeth_qdio_buffers their qdio_buffers */
3068 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3069 card->qdio.in_q->bufs[i].buffer =
3070 &card->qdio.in_q->qdio_bufs[i];
3071 /* inbound buffer pool */
3072 if (qeth_alloc_buffer_pool(card)){
3073 kfree(card->qdio.in_q);
3074 return -ENOMEM;
3075 }
3076 /* outbound */
3077 card->qdio.out_qs =
3078 kmalloc(card->qdio.no_out_queues *
3079 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3080 if (!card->qdio.out_qs){
3081 qeth_free_buffer_pool(card);
3082 return -ENOMEM;
3083 }
3084 for (i = 0; i < card->qdio.no_out_queues; ++i){
3085 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3086 GFP_KERNEL);
3087 if (!card->qdio.out_qs[i]){
3088 while (i > 0)
3089 kfree(card->qdio.out_qs[--i]);
3090 kfree(card->qdio.out_qs);
3091 return -ENOMEM;
3092 }
3093 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3094 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3095 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3096 card->qdio.out_qs[i]->queue_no = i;
3097 /* give outbound qeth_qdio_buffers their qdio_buffers */
3098 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3099 card->qdio.out_qs[i]->bufs[j].buffer =
3100 &card->qdio.out_qs[i]->qdio_bufs[j];
3101 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3102 skb_list);
3103 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3104 }
3105 }
3106 card->qdio.state = QETH_QDIO_ALLOCATED;
3107 return 0;
3108 }
3109
3110 static void
3111 qeth_free_qdio_buffers(struct qeth_card *card)
3112 {
3113 int i, j;
3114
3115 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3116 if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3117 return;
3118 kfree(card->qdio.in_q);
3119 /* inbound buffer pool */
3120 qeth_free_buffer_pool(card);
3121 /* free outbound qdio_qs */
3122 for (i = 0; i < card->qdio.no_out_queues; ++i){
3123 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3124 qeth_clear_output_buffer(card->qdio.out_qs[i],
3125 &card->qdio.out_qs[i]->bufs[j]);
3126 kfree(card->qdio.out_qs[i]);
3127 }
3128 kfree(card->qdio.out_qs);
3129 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3130 }
3131
3132 static void
3133 qeth_clear_qdio_buffers(struct qeth_card *card)
3134 {
3135 int i, j;
3136
3137 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3138 /* clear outbound buffers to free skbs */
3139 for (i = 0; i < card->qdio.no_out_queues; ++i)
3140 if (card->qdio.out_qs[i]){
3141 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3142 qeth_clear_output_buffer(card->qdio.out_qs[i],
3143 &card->qdio.out_qs[i]->bufs[j]);
3144 }
3145 }
3146
3147 static void
3148 qeth_init_qdio_info(struct qeth_card *card)
3149 {
3150 QETH_DBF_TEXT(setup, 4, "intqdinf");
3151 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3152 /* inbound */
3153 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3154 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3155 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3156 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3157 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3158 /* outbound */
3159 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
3160 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
3161 }
3162
3163 static int
3164 qeth_init_qdio_queues(struct qeth_card *card)
3165 {
3166 int i, j;
3167 int rc;
3168
3169 QETH_DBF_TEXT(setup, 2, "initqdqs");
3170
3171 /* inbound queue */
3172 memset(card->qdio.in_q->qdio_bufs, 0,
3173 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3174 qeth_initialize_working_pool_list(card);
3175 /*give only as many buffers to hardware as we have buffer pool entries*/
3176 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3177 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3178 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3179 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3180 card->qdio.in_buf_pool.buf_count - 1, NULL);
3181 if (rc) {
3182 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3183 return rc;
3184 }
3185 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3186 if (rc) {
3187 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3188 return rc;
3189 }
3190 /* outbound queue */
3191 for (i = 0; i < card->qdio.no_out_queues; ++i){
3192 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3193 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3194 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3195 qeth_clear_output_buffer(card->qdio.out_qs[i],
3196 &card->qdio.out_qs[i]->bufs[j]);
3197 }
3198 card->qdio.out_qs[i]->card = card;
3199 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3200 card->qdio.out_qs[i]->do_pack = 0;
3201 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3202 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3203 atomic_set(&card->qdio.out_qs[i]->state,
3204 QETH_OUT_Q_UNLOCKED);
3205 }
3206 return 0;
3207 }
3208
3209 static int
3210 qeth_qdio_establish(struct qeth_card *card)
3211 {
3212 struct qdio_initialize init_data;
3213 char *qib_param_field;
3214 struct qdio_buffer **in_sbal_ptrs;
3215 struct qdio_buffer **out_sbal_ptrs;
3216 int i, j, k;
3217 int rc;
3218
3219 QETH_DBF_TEXT(setup, 2, "qdioest");
3220
3221 qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3222 GFP_KERNEL);
3223 if (!qib_param_field)
3224 return -ENOMEM;
3225
3226 memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3227
3228 qeth_create_qib_param_field(card, qib_param_field);
3229 qeth_create_qib_param_field_blkt(card, qib_param_field);
3230
3231 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3232 GFP_KERNEL);
3233 if (!in_sbal_ptrs) {
3234 kfree(qib_param_field);
3235 return -ENOMEM;
3236 }
3237 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3238 in_sbal_ptrs[i] = (struct qdio_buffer *)
3239 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3240
3241 out_sbal_ptrs =
3242 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3243 sizeof(void *), GFP_KERNEL);
3244 if (!out_sbal_ptrs) {
3245 kfree(in_sbal_ptrs);
3246 kfree(qib_param_field);
3247 return -ENOMEM;
3248 }
3249 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3250 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3251 out_sbal_ptrs[k] = (struct qdio_buffer *)
3252 virt_to_phys(card->qdio.out_qs[i]->
3253 bufs[j].buffer);
3254 }
3255
3256 memset(&init_data, 0, sizeof(struct qdio_initialize));
3257 init_data.cdev = CARD_DDEV(card);
3258 init_data.q_format = qeth_get_qdio_q_format(card);
3259 init_data.qib_param_field_format = 0;
3260 init_data.qib_param_field = qib_param_field;
3261 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3262 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3263 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3264 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3265 init_data.no_input_qs = 1;
3266 init_data.no_output_qs = card->qdio.no_out_queues;
3267 init_data.input_handler = (qdio_handler_t *)
3268 qeth_qdio_input_handler;
3269 init_data.output_handler = (qdio_handler_t *)
3270 qeth_qdio_output_handler;
3271 init_data.int_parm = (unsigned long) card;
3272 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3273 QDIO_OUTBOUND_0COPY_SBALS |
3274 QDIO_USE_OUTBOUND_PCIS;
3275 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3276 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3277
3278 if (!(rc = qdio_initialize(&init_data)))
3279 card->qdio.state = QETH_QDIO_ESTABLISHED;
3280
3281 kfree(out_sbal_ptrs);
3282 kfree(in_sbal_ptrs);
3283 kfree(qib_param_field);
3284 return rc;
3285 }
3286
3287 static int
3288 qeth_qdio_activate(struct qeth_card *card)
3289 {
3290 QETH_DBF_TEXT(setup,3,"qdioact");
3291 return qdio_activate(CARD_DDEV(card), 0);
3292 }
3293
3294 static int
3295 qeth_clear_channel(struct qeth_channel *channel)
3296 {
3297 unsigned long flags;
3298 struct qeth_card *card;
3299 int rc;
3300
3301 QETH_DBF_TEXT(trace,3,"clearch");
3302 card = CARD_FROM_CDEV(channel->ccwdev);
3303 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3304 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3305 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3306
3307 if (rc)
3308 return rc;
3309 rc = wait_event_interruptible_timeout(card->wait_q,
3310 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3311 if (rc == -ERESTARTSYS)
3312 return rc;
3313 if (channel->state != CH_STATE_STOPPED)
3314 return -ETIME;
3315 channel->state = CH_STATE_DOWN;
3316 return 0;
3317 }
3318
3319 static int
3320 qeth_halt_channel(struct qeth_channel *channel)
3321 {
3322 unsigned long flags;
3323 struct qeth_card *card;
3324 int rc;
3325
3326 QETH_DBF_TEXT(trace,3,"haltch");
3327 card = CARD_FROM_CDEV(channel->ccwdev);
3328 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3329 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3330 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3331
3332 if (rc)
3333 return rc;
3334 rc = wait_event_interruptible_timeout(card->wait_q,
3335 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3336 if (rc == -ERESTARTSYS)
3337 return rc;
3338 if (channel->state != CH_STATE_HALTED)
3339 return -ETIME;
3340 return 0;
3341 }
3342
3343 static int
3344 qeth_halt_channels(struct qeth_card *card)
3345 {
3346 int rc1 = 0, rc2=0, rc3 = 0;
3347
3348 QETH_DBF_TEXT(trace,3,"haltchs");
3349 rc1 = qeth_halt_channel(&card->read);
3350 rc2 = qeth_halt_channel(&card->write);
3351 rc3 = qeth_halt_channel(&card->data);
3352 if (rc1)
3353 return rc1;
3354 if (rc2)
3355 return rc2;
3356 return rc3;
3357 }
3358 static int
3359 qeth_clear_channels(struct qeth_card *card)
3360 {
3361 int rc1 = 0, rc2=0, rc3 = 0;
3362
3363 QETH_DBF_TEXT(trace,3,"clearchs");
3364 rc1 = qeth_clear_channel(&card->read);
3365 rc2 = qeth_clear_channel(&card->write);
3366 rc3 = qeth_clear_channel(&card->data);
3367 if (rc1)
3368 return rc1;
3369 if (rc2)
3370 return rc2;
3371 return rc3;
3372 }
3373
3374 static int
3375 qeth_clear_halt_card(struct qeth_card *card, int halt)
3376 {
3377 int rc = 0;
3378
3379 QETH_DBF_TEXT(trace,3,"clhacrd");
3380 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3381
3382 if (halt)
3383 rc = qeth_halt_channels(card);
3384 if (rc)
3385 return rc;
3386 return qeth_clear_channels(card);
3387 }
3388
3389 static int
3390 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3391 {
3392 int rc = 0;
3393
3394 QETH_DBF_TEXT(trace,3,"qdioclr");
3395 if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3396 if ((rc = qdio_cleanup(CARD_DDEV(card),
3397 (card->info.type == QETH_CARD_TYPE_IQD) ?
3398 QDIO_FLAG_CLEANUP_USING_HALT :
3399 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3400 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3401 card->qdio.state = QETH_QDIO_ALLOCATED;
3402 }
3403 if ((rc = qeth_clear_halt_card(card, use_halt)))
3404 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3405 card->state = CARD_STATE_DOWN;
3406 return rc;
3407 }
3408
3409 static int
3410 qeth_dm_act(struct qeth_card *card)
3411 {
3412 int rc;
3413 struct qeth_cmd_buffer *iob;
3414
3415 QETH_DBF_TEXT(setup,2,"dmact");
3416
3417 iob = qeth_wait_for_buffer(&card->write);
3418 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3419
3420 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3421 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3422 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3423 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3424 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3425 return rc;
3426 }
3427
3428 static int
3429 qeth_mpc_initialize(struct qeth_card *card)
3430 {
3431 int rc;
3432
3433 QETH_DBF_TEXT(setup,2,"mpcinit");
3434
3435 if ((rc = qeth_issue_next_read(card))){
3436 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3437 return rc;
3438 }
3439 if ((rc = qeth_cm_enable(card))){
3440 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3441 goto out_qdio;
3442 }
3443 if ((rc = qeth_cm_setup(card))){
3444 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3445 goto out_qdio;
3446 }
3447 if ((rc = qeth_ulp_enable(card))){
3448 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3449 goto out_qdio;
3450 }
3451 if ((rc = qeth_ulp_setup(card))){
3452 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3453 goto out_qdio;
3454 }
3455 if ((rc = qeth_alloc_qdio_buffers(card))){
3456 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3457 goto out_qdio;
3458 }
3459 if ((rc = qeth_qdio_establish(card))){
3460 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3461 qeth_free_qdio_buffers(card);
3462 goto out_qdio;
3463 }
3464 if ((rc = qeth_qdio_activate(card))){
3465 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3466 goto out_qdio;
3467 }
3468 if ((rc = qeth_dm_act(card))){
3469 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3470 goto out_qdio;
3471 }
3472
3473 return 0;
3474 out_qdio:
3475 qeth_qdio_clear_card(card, card->info.type==QETH_CARD_TYPE_OSAE);
3476 return rc;
3477 }
3478
3479 static struct net_device *
3480 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3481 {
3482 struct net_device *dev = NULL;
3483
3484 switch (type) {
3485 case QETH_CARD_TYPE_OSAE:
3486 switch (linktype) {
3487 case QETH_LINK_TYPE_LANE_TR:
3488 case QETH_LINK_TYPE_HSTR:
3489 #ifdef CONFIG_TR
3490 dev = alloc_trdev(0);
3491 #endif /* CONFIG_TR */
3492 break;
3493 default:
3494 dev = alloc_etherdev(0);
3495 }
3496 break;
3497 case QETH_CARD_TYPE_IQD:
3498 dev = alloc_netdev(0, "hsi%d", ether_setup);
3499 break;
3500 default:
3501 dev = alloc_etherdev(0);
3502 }
3503 return dev;
3504 }
3505
3506 /*hard_header fake function; used in case fake_ll is set */
3507 static int
3508 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3509 unsigned short type, void *daddr, void *saddr,
3510 unsigned len)
3511 {
3512 if(dev->type == ARPHRD_IEEE802_TR){
3513 struct trh_hdr *hdr;
3514 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3515 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3516 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3517 return QETH_FAKE_LL_LEN_TR;
3518
3519 } else {
3520 struct ethhdr *hdr;
3521 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3522 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3523 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3524 if (type != ETH_P_802_3)
3525 hdr->h_proto = htons(type);
3526 else
3527 hdr->h_proto = htons(len);
3528 return QETH_FAKE_LL_LEN_ETH;
3529
3530 }
3531 }
3532
3533 static inline int
3534 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3535
3536 static int
3537 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3538 {
3539 int rc;
3540 struct qeth_card *card;
3541
3542 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3543 card = (struct qeth_card *)dev->priv;
3544 if (skb==NULL) {
3545 card->stats.tx_dropped++;
3546 card->stats.tx_errors++;
3547 /* return OK; otherwise ksoftirqd goes to 100% */
3548 return NETDEV_TX_OK;
3549 }
3550 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3551 card->stats.tx_dropped++;
3552 card->stats.tx_errors++;
3553 card->stats.tx_carrier_errors++;
3554 dev_kfree_skb_any(skb);
3555 /* return OK; otherwise ksoftirqd goes to 100% */
3556 return NETDEV_TX_OK;
3557 }
3558 #ifdef CONFIG_QETH_PERF_STATS
3559 card->perf_stats.outbound_cnt++;
3560 card->perf_stats.outbound_start_time = qeth_get_micros();
3561 #endif
3562 netif_stop_queue(dev);
3563 if ((rc = qeth_send_packet(card, skb))) {
3564 if (rc == -EBUSY) {
3565 return NETDEV_TX_BUSY;
3566 } else {
3567 card->stats.tx_errors++;
3568 card->stats.tx_dropped++;
3569 dev_kfree_skb_any(skb);
3570 /*set to OK; otherwise ksoftirqd goes to 100% */
3571 rc = NETDEV_TX_OK;
3572 }
3573 }
3574 netif_wake_queue(dev);
3575 #ifdef CONFIG_QETH_PERF_STATS
3576 card->perf_stats.outbound_time += qeth_get_micros() -
3577 card->perf_stats.outbound_start_time;
3578 #endif
3579 return rc;
3580 }
3581
3582 static int
3583 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3584 {
3585 int rc = 0;
3586 #ifdef CONFIG_QETH_VLAN
3587 struct vlan_group *vg;
3588 int i;
3589
3590 if (!(vg = card->vlangrp))
3591 return rc;
3592
3593 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3594 if (vg->vlan_devices[i] == dev){
3595 rc = QETH_VLAN_CARD;
3596 break;
3597 }
3598 }
3599 #endif
3600 return rc;
3601 }
3602
3603 static int
3604 qeth_verify_dev(struct net_device *dev)
3605 {
3606 struct qeth_card *card;
3607 unsigned long flags;
3608 int rc = 0;
3609
3610 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3611 list_for_each_entry(card, &qeth_card_list.list, list){
3612 if (card->dev == dev){
3613 rc = QETH_REAL_CARD;
3614 break;
3615 }
3616 rc = qeth_verify_vlan_dev(dev, card);
3617 if (rc)
3618 break;
3619 }
3620 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3621
3622 return rc;
3623 }
3624
3625 static struct qeth_card *
3626 qeth_get_card_from_dev(struct net_device *dev)
3627 {
3628 struct qeth_card *card = NULL;
3629 int rc;
3630
3631 rc = qeth_verify_dev(dev);
3632 if (rc == QETH_REAL_CARD)
3633 card = (struct qeth_card *)dev->priv;
3634 else if (rc == QETH_VLAN_CARD)
3635 card = (struct qeth_card *)
3636 VLAN_DEV_INFO(dev)->real_dev->priv;
3637
3638 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3639 return card ;
3640 }
3641
3642 static void
3643 qeth_tx_timeout(struct net_device *dev)
3644 {
3645 struct qeth_card *card;
3646
3647 card = (struct qeth_card *) dev->priv;
3648 card->stats.tx_errors++;
3649 qeth_schedule_recovery(card);
3650 }
3651
3652 static int
3653 qeth_open(struct net_device *dev)
3654 {
3655 struct qeth_card *card;
3656
3657 QETH_DBF_TEXT(trace, 4, "qethopen");
3658
3659 card = (struct qeth_card *) dev->priv;
3660
3661 if (card->state != CARD_STATE_SOFTSETUP)
3662 return -ENODEV;
3663
3664 if ( (card->options.layer2) &&
3665 (!card->info.layer2_mac_registered)) {
3666 QETH_DBF_TEXT(trace,4,"nomacadr");
3667 return -EPERM;
3668 }
3669 card->dev->flags |= IFF_UP;
3670 netif_start_queue(dev);
3671 card->data.state = CH_STATE_UP;
3672 card->state = CARD_STATE_UP;
3673
3674 if (!card->lan_online){
3675 if (netif_carrier_ok(dev))
3676 netif_carrier_off(dev);
3677 }
3678 return 0;
3679 }
3680
3681 static int
3682 qeth_stop(struct net_device *dev)
3683 {
3684 struct qeth_card *card;
3685
3686 QETH_DBF_TEXT(trace, 4, "qethstop");
3687
3688 card = (struct qeth_card *) dev->priv;
3689
3690 netif_stop_queue(dev);
3691 card->dev->flags &= ~IFF_UP;
3692 if (card->state == CARD_STATE_UP)
3693 card->state = CARD_STATE_SOFTSETUP;
3694 return 0;
3695 }
3696
3697 static inline int
3698 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3699 {
3700 int cast_type = RTN_UNSPEC;
3701
3702 if (skb->dst && skb->dst->neighbour){
3703 cast_type = skb->dst->neighbour->type;
3704 if ((cast_type == RTN_BROADCAST) ||
3705 (cast_type == RTN_MULTICAST) ||
3706 (cast_type == RTN_ANYCAST))
3707 return cast_type;
3708 else
3709 return RTN_UNSPEC;
3710 }
3711 /* try something else */
3712 if (skb->protocol == ETH_P_IPV6)
3713 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3714 else if (skb->protocol == ETH_P_IP)
3715 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3716 /* ... */
3717 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3718 return RTN_BROADCAST;
3719 else {
3720 u16 hdr_mac;
3721
3722 hdr_mac = *((u16 *)skb->data);
3723 /* tr multicast? */
3724 switch (card->info.link_type) {
3725 case QETH_LINK_TYPE_HSTR:
3726 case QETH_LINK_TYPE_LANE_TR:
3727 if ((hdr_mac == QETH_TR_MAC_NC) ||
3728 (hdr_mac == QETH_TR_MAC_C))
3729 return RTN_MULTICAST;
3730 /* eth or so multicast? */
3731 default:
3732 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3733 (hdr_mac == QETH_ETH_MAC_V6))
3734 return RTN_MULTICAST;
3735 }
3736 }
3737 return cast_type;
3738 }
3739
3740 static inline int
3741 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3742 int ipv, int cast_type)
3743 {
3744 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3745 return card->qdio.default_out_queue;
3746 switch (card->qdio.no_out_queues) {
3747 case 4:
3748 if (cast_type && card->info.is_multicast_different)
3749 return card->info.is_multicast_different &
3750 (card->qdio.no_out_queues - 1);
3751 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3752 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3753 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3754 return 3;
3755 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3756 return 2;
3757 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3758 return 1;
3759 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3760 return 0;
3761 }
3762 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3763 return 3 - (skb->nh.iph->tos >> 6);
3764 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3765 /* TODO: IPv6!!! */
3766 }
3767 return card->qdio.default_out_queue;
3768 case 1: /* fallthrough for single-out-queue 1920-device */
3769 default:
3770 return card->qdio.default_out_queue;
3771 }
3772 }
3773
3774 static inline int
3775 qeth_get_ip_version(struct sk_buff *skb)
3776 {
3777 switch (skb->protocol) {
3778 case ETH_P_IPV6:
3779 return 6;
3780 case ETH_P_IP:
3781 return 4;
3782 default:
3783 return 0;
3784 }
3785 }
3786
3787 static inline int
3788 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3789 struct qeth_hdr **hdr, int ipv)
3790 {
3791 int rc;
3792 #ifdef CONFIG_QETH_VLAN
3793 u16 *tag;
3794 #endif
3795
3796 QETH_DBF_TEXT(trace, 6, "prepskb");
3797
3798 rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3799 if (rc)
3800 return rc;
3801 #ifdef CONFIG_QETH_VLAN
3802 if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3803 ((ipv == 6) || card->options.layer2) ) {
3804 /*
3805 * Move the mac addresses (6 bytes src, 6 bytes dest)
3806 * to the beginning of the new header. We are using three
3807 * memcpys instead of one memmove to save cycles.
3808 */
3809 skb_push(*skb, VLAN_HLEN);
3810 memcpy((*skb)->data, (*skb)->data + 4, 4);
3811 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3812 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3813 tag = (u16 *)((*skb)->data + 12);
3814 /*
3815 * first two bytes = ETH_P_8021Q (0x8100)
3816 * second two bytes = VLANID
3817 */
3818 *tag = __constant_htons(ETH_P_8021Q);
3819 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3820 }
3821 #endif
3822 *hdr = (struct qeth_hdr *)
3823 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3824 if (hdr == NULL)
3825 return -EINVAL;
3826 return 0;
3827 }
3828
3829 static inline u8
3830 qeth_get_qeth_hdr_flags4(int cast_type)
3831 {
3832 if (cast_type == RTN_MULTICAST)
3833 return QETH_CAST_MULTICAST;
3834 if (cast_type == RTN_BROADCAST)
3835 return QETH_CAST_BROADCAST;
3836 return QETH_CAST_UNICAST;
3837 }
3838
3839 static inline u8
3840 qeth_get_qeth_hdr_flags6(int cast_type)
3841 {
3842 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3843 if (cast_type == RTN_MULTICAST)
3844 return ct | QETH_CAST_MULTICAST;
3845 if (cast_type == RTN_ANYCAST)
3846 return ct | QETH_CAST_ANYCAST;
3847 if (cast_type == RTN_BROADCAST)
3848 return ct | QETH_CAST_BROADCAST;
3849 return ct | QETH_CAST_UNICAST;
3850 }
3851
3852 static inline void
3853 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3854 struct sk_buff *skb)
3855 {
3856 __u16 hdr_mac;
3857
3858 if (!memcmp(skb->data+QETH_HEADER_SIZE,
3859 skb->dev->broadcast,6)) { /* broadcast? */
3860 *(__u32 *)hdr->hdr.l2.flags |=
3861 QETH_LAYER2_FLAG_BROADCAST << 8;
3862 return;
3863 }
3864 hdr_mac=*((__u16*)skb->data);
3865 /* tr multicast? */
3866 switch (card->info.link_type) {
3867 case QETH_LINK_TYPE_HSTR:
3868 case QETH_LINK_TYPE_LANE_TR:
3869 if ((hdr_mac == QETH_TR_MAC_NC) ||
3870 (hdr_mac == QETH_TR_MAC_C) )
3871 *(__u32 *)hdr->hdr.l2.flags |=
3872 QETH_LAYER2_FLAG_MULTICAST << 8;
3873 else
3874 *(__u32 *)hdr->hdr.l2.flags |=
3875 QETH_LAYER2_FLAG_UNICAST << 8;
3876 break;
3877 /* eth or so multicast? */
3878 default:
3879 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3880 (hdr_mac==QETH_ETH_MAC_V6) )
3881 *(__u32 *)hdr->hdr.l2.flags |=
3882 QETH_LAYER2_FLAG_MULTICAST << 8;
3883 else
3884 *(__u32 *)hdr->hdr.l2.flags |=
3885 QETH_LAYER2_FLAG_UNICAST << 8;
3886 }
3887 }
3888
3889 static inline void
3890 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3891 struct sk_buff *skb, int cast_type)
3892 {
3893 memset(hdr, 0, sizeof(struct qeth_hdr));
3894 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
3895
3896 /* set byte 0 to "0x02" and byte 3 to casting flags */
3897 if (cast_type==RTN_MULTICAST)
3898 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
3899 else if (cast_type==RTN_BROADCAST)
3900 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
3901 else
3902 qeth_layer2_get_packet_type(card, hdr, skb);
3903
3904 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
3905 #ifdef CONFIG_QETH_VLAN
3906 /* VSWITCH relies on the VLAN
3907 * information to be present in
3908 * the QDIO header */
3909 if ((card->vlangrp != NULL) &&
3910 vlan_tx_tag_present(skb)) {
3911 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
3912 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
3913 }
3914 #endif
3915 }
3916
3917 void
3918 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3919 struct sk_buff *skb, int ipv, int cast_type)
3920 {
3921 QETH_DBF_TEXT(trace, 6, "fillhdr");
3922
3923 memset(hdr, 0, sizeof(struct qeth_hdr));
3924 if (card->options.layer2) {
3925 qeth_layer2_fill_header(card, hdr, skb, cast_type);
3926 return;
3927 }
3928 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
3929 hdr->hdr.l3.ext_flags = 0;
3930 #ifdef CONFIG_QETH_VLAN
3931 /*
3932 * before we're going to overwrite this location with next hop ip.
3933 * v6 uses passthrough, v4 sets the tag in the QDIO header.
3934 */
3935 if (card->vlangrp && vlan_tx_tag_present(skb)) {
3936 hdr->hdr.l3.ext_flags = (ipv == 4) ?
3937 QETH_HDR_EXT_VLAN_FRAME :
3938 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
3939 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
3940 }
3941 #endif /* CONFIG_QETH_VLAN */
3942 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
3943 if (ipv == 4) { /* IPv4 */
3944 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
3945 memset(hdr->hdr.l3.dest_addr, 0, 12);
3946 if ((skb->dst) && (skb->dst->neighbour)) {
3947 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
3948 *((u32 *) skb->dst->neighbour->primary_key);
3949 } else {
3950 /* fill in destination address used in ip header */
3951 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
3952 }
3953 } else if (ipv == 6) { /* IPv6 or passthru */
3954 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
3955 if ((skb->dst) && (skb->dst->neighbour)) {
3956 memcpy(hdr->hdr.l3.dest_addr,
3957 skb->dst->neighbour->primary_key, 16);
3958 } else {
3959 /* fill in destination address used in ip header */
3960 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
3961 }
3962 } else { /* passthrough */
3963 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
3964 !memcmp(skb->data + sizeof(struct qeth_hdr) +
3965 sizeof(__u16), skb->dev->broadcast, 6)) {
3966 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
3967 QETH_HDR_PASSTHRU;
3968 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
3969 skb->dev->broadcast, 6)) { /* broadcast? */
3970 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
3971 QETH_HDR_PASSTHRU;
3972 } else {
3973 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
3974 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
3975 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
3976 }
3977 }
3978 }
3979
3980 static inline void
3981 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
3982 int is_tso, int *next_element_to_fill)
3983 {
3984 int length = skb->len;
3985 int length_here;
3986 int element;
3987 char *data;
3988 int first_lap ;
3989
3990 element = *next_element_to_fill;
3991 data = skb->data;
3992 first_lap = (is_tso == 0 ? 1 : 0);
3993
3994 while (length > 0) {
3995 /* length_here is the remaining amount of data in this page */
3996 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3997 if (length < length_here)
3998 length_here = length;
3999
4000 buffer->element[element].addr = data;
4001 buffer->element[element].length = length_here;
4002 length -= length_here;
4003 if (!length) {
4004 if (first_lap)
4005 buffer->element[element].flags = 0;
4006 else
4007 buffer->element[element].flags =
4008 SBAL_FLAGS_LAST_FRAG;
4009 } else {
4010 if (first_lap)
4011 buffer->element[element].flags =
4012 SBAL_FLAGS_FIRST_FRAG;
4013 else
4014 buffer->element[element].flags =
4015 SBAL_FLAGS_MIDDLE_FRAG;
4016 }
4017 data += length_here;
4018 element++;
4019 first_lap = 0;
4020 }
4021 *next_element_to_fill = element;
4022 }
4023
4024 static inline int
4025 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4026 struct qeth_qdio_out_buffer *buf,
4027 struct sk_buff *skb)
4028 {
4029 struct qdio_buffer *buffer;
4030 struct qeth_hdr_tso *hdr;
4031 int flush_cnt = 0, hdr_len, large_send = 0;
4032
4033 QETH_DBF_TEXT(trace, 6, "qdfillbf");
4034
4035 buffer = buf->buffer;
4036 atomic_inc(&skb->users);
4037 skb_queue_tail(&buf->skb_list, skb);
4038
4039 hdr = (struct qeth_hdr_tso *) skb->data;
4040 /*check first on TSO ....*/
4041 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4042 int element = buf->next_element_to_fill;
4043
4044 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4045 /*fill first buffer entry only with header information */
4046 buffer->element[element].addr = skb->data;
4047 buffer->element[element].length = hdr_len;
4048 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4049 buf->next_element_to_fill++;
4050 skb->data += hdr_len;
4051 skb->len -= hdr_len;
4052 large_send = 1;
4053 }
4054 if (skb_shinfo(skb)->nr_frags == 0)
4055 __qeth_fill_buffer(skb, buffer, large_send,
4056 (int *)&buf->next_element_to_fill);
4057 else
4058 __qeth_fill_buffer_frag(skb, buffer, large_send,
4059 (int *)&buf->next_element_to_fill);
4060
4061 if (!queue->do_pack) {
4062 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4063 /* set state to PRIMED -> will be flushed */
4064 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4065 flush_cnt = 1;
4066 } else {
4067 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4068 #ifdef CONFIG_QETH_PERF_STATS
4069 queue->card->perf_stats.skbs_sent_pack++;
4070 #endif
4071 if (buf->next_element_to_fill >=
4072 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4073 /*
4074 * packed buffer if full -> set state PRIMED
4075 * -> will be flushed
4076 */
4077 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4078 flush_cnt = 1;
4079 }
4080 }
4081 return flush_cnt;
4082 }
4083
4084 static inline int
4085 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4086 struct sk_buff *skb, struct qeth_hdr *hdr,
4087 int elements_needed,
4088 struct qeth_eddp_context *ctx)
4089 {
4090 struct qeth_qdio_out_buffer *buffer;
4091 int buffers_needed = 0;
4092 int flush_cnt = 0;
4093 int index;
4094
4095 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4096
4097 /* spin until we get the queue ... */
4098 while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4099 QETH_OUT_Q_LOCKED,
4100 &queue->state));
4101 /* ... now we've got the queue */
4102 index = queue->next_buf_to_fill;
4103 buffer = &queue->bufs[queue->next_buf_to_fill];
4104 /*
4105 * check if buffer is empty to make sure that we do not 'overtake'
4106 * ourselves and try to fill a buffer that is already primed
4107 */
4108 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4109 card->stats.tx_dropped++;
4110 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4111 return -EBUSY;
4112 }
4113 if (ctx == NULL)
4114 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4115 QDIO_MAX_BUFFERS_PER_Q;
4116 else {
4117 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4118 if (buffers_needed < 0) {
4119 card->stats.tx_dropped++;
4120 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4121 return -EBUSY;
4122 }
4123 queue->next_buf_to_fill =
4124 (queue->next_buf_to_fill + buffers_needed) %
4125 QDIO_MAX_BUFFERS_PER_Q;
4126 }
4127 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4128 if (ctx == NULL) {
4129 qeth_fill_buffer(queue, buffer, skb);
4130 qeth_flush_buffers(queue, 0, index, 1);
4131 } else {
4132 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4133 WARN_ON(buffers_needed != flush_cnt);
4134 qeth_flush_buffers(queue, 0, index, flush_cnt);
4135 }
4136 return 0;
4137 }
4138
4139 static inline int
4140 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4141 struct sk_buff *skb, struct qeth_hdr *hdr,
4142 int elements_needed, struct qeth_eddp_context *ctx)
4143 {
4144 struct qeth_qdio_out_buffer *buffer;
4145 int start_index;
4146 int flush_count = 0;
4147 int do_pack = 0;
4148 int tmp;
4149 int rc = 0;
4150
4151 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4152
4153 /* spin until we get the queue ... */
4154 while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4155 QETH_OUT_Q_LOCKED,
4156 &queue->state));
4157 start_index = queue->next_buf_to_fill;
4158 buffer = &queue->bufs[queue->next_buf_to_fill];
4159 /*
4160 * check if buffer is empty to make sure that we do not 'overtake'
4161 * ourselves and try to fill a buffer that is already primed
4162 */
4163 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4164 card->stats.tx_dropped++;
4165 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4166 return -EBUSY;
4167 }
4168 /* check if we need to switch packing state of this queue */
4169 qeth_switch_to_packing_if_needed(queue);
4170 if (queue->do_pack){
4171 do_pack = 1;
4172 if (ctx == NULL) {
4173 /* does packet fit in current buffer? */
4174 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4175 buffer->next_element_to_fill) < elements_needed){
4176 /* ... no -> set state PRIMED */
4177 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4178 flush_count++;
4179 queue->next_buf_to_fill =
4180 (queue->next_buf_to_fill + 1) %
4181 QDIO_MAX_BUFFERS_PER_Q;
4182 buffer = &queue->bufs[queue->next_buf_to_fill];
4183 /* we did a step forward, so check buffer state
4184 * again */
4185 if (atomic_read(&buffer->state) !=
4186 QETH_QDIO_BUF_EMPTY){
4187 card->stats.tx_dropped++;
4188 qeth_flush_buffers(queue, 0, start_index, flush_count);
4189 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4190 return -EBUSY;
4191 }
4192 }
4193 } else {
4194 /* check if we have enough elements (including following
4195 * free buffers) to handle eddp context */
4196 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4197 printk("eddp tx_dropped 1\n");
4198 card->stats.tx_dropped++;
4199 rc = -EBUSY;
4200 goto out;
4201 }
4202 }
4203 }
4204 if (ctx == NULL)
4205 tmp = qeth_fill_buffer(queue, buffer, skb);
4206 else {
4207 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4208 if (tmp < 0) {
4209 printk("eddp tx_dropped 2\n");
4210 card->stats.tx_dropped++;
4211 rc = - EBUSY;
4212 goto out;
4213 }
4214 }
4215 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4216 QDIO_MAX_BUFFERS_PER_Q;
4217 flush_count += tmp;
4218 out:
4219 if (flush_count)
4220 qeth_flush_buffers(queue, 0, start_index, flush_count);
4221 /*
4222 * queue->state will go from LOCKED -> UNLOCKED or from
4223 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4224 * (switch packing state or flush buffer to get another pci flag out).
4225 * In that case we will enter this loop
4226 */
4227 while (atomic_dec_return(&queue->state)){
4228 flush_count = 0;
4229 start_index = queue->next_buf_to_fill;
4230 /* check if we can go back to non-packing state */
4231 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4232 /*
4233 * check if we need to flush a packing buffer to get a pci
4234 * flag out on the queue
4235 */
4236 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4237 flush_count += qeth_flush_buffers_on_no_pci(queue);
4238 if (flush_count)
4239 qeth_flush_buffers(queue, 0, start_index, flush_count);
4240 }
4241 /* at this point the queue is UNLOCKED again */
4242 #ifdef CONFIG_QETH_PERF_STATS
4243 if (do_pack)
4244 queue->card->perf_stats.bufs_sent_pack += flush_count;
4245 #endif /* CONFIG_QETH_PERF_STATS */
4246
4247 return rc;
4248 }
4249
4250 static inline int
4251 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4252 struct sk_buff *skb, int elems)
4253 {
4254 int elements_needed = 0;
4255
4256 if (skb_shinfo(skb)->nr_frags > 0) {
4257 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4258 }
4259 if (elements_needed == 0 )
4260 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4261 + skb->len) >> PAGE_SHIFT);
4262 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4263 PRINT_ERR("qeth_do_send_packet: invalid size of "
4264 "IP packet (Number=%d / Length=%d). Discarded.\n",
4265 (elements_needed+elems), skb->len);
4266 return 0;
4267 }
4268 return elements_needed;
4269 }
4270
4271 static inline int
4272 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4273 {
4274 int ipv = 0;
4275 int cast_type;
4276 struct qeth_qdio_out_q *queue;
4277 struct qeth_hdr *hdr = NULL;
4278 int elements_needed = 0;
4279 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4280 struct qeth_eddp_context *ctx = NULL;
4281 int rc;
4282
4283 QETH_DBF_TEXT(trace, 6, "sendpkt");
4284
4285 if (!card->options.layer2) {
4286 ipv = qeth_get_ip_version(skb);
4287 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4288 if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4289 card->stats.tx_dropped++;
4290 dev_kfree_skb_irq(skb);
4291 return 0;
4292 }
4293 if(card->dev->type == ARPHRD_IEEE802_TR){
4294 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4295 } else {
4296 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4297 }
4298 }
4299 }
4300 cast_type = qeth_get_cast_type(card, skb);
4301 if ((cast_type == RTN_BROADCAST) && (card->info.broadcast_capable == 0)){
4302 card->stats.tx_dropped++;
4303 card->stats.tx_errors++;
4304 dev_kfree_skb_any(skb);
4305 return NETDEV_TX_OK;
4306 }
4307 queue = card->qdio.out_qs
4308 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4309
4310 if (skb_shinfo(skb)->tso_size)
4311 large_send = card->options.large_send;
4312
4313 /*are we able to do TSO ? If so ,prepare and send it from here */
4314 if ((large_send == QETH_LARGE_SEND_TSO) &&
4315 (cast_type == RTN_UNSPEC)) {
4316 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4317 if (rc) {
4318 card->stats.tx_dropped++;
4319 card->stats.tx_errors++;
4320 dev_kfree_skb_any(skb);
4321 return NETDEV_TX_OK;
4322 }
4323 elements_needed++;
4324 } else {
4325 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4326 QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4327 return rc;
4328 }
4329 qeth_fill_header(card, hdr, skb, ipv, cast_type);
4330 }
4331
4332 if (large_send == QETH_LARGE_SEND_EDDP) {
4333 ctx = qeth_eddp_create_context(card, skb, hdr);
4334 if (ctx == NULL) {
4335 PRINT_WARN("could not create eddp context\n");
4336 return -EINVAL;
4337 }
4338 } else {
4339 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4340 elements_needed);
4341 if (!elems)
4342 return -EINVAL;
4343 elements_needed += elems;
4344 }
4345
4346 if (card->info.type != QETH_CARD_TYPE_IQD)
4347 rc = qeth_do_send_packet(card, queue, skb, hdr,
4348 elements_needed, ctx);
4349 else
4350 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4351 elements_needed, ctx);
4352 if (!rc){
4353 card->stats.tx_packets++;
4354 card->stats.tx_bytes += skb->len;
4355 #ifdef CONFIG_QETH_PERF_STATS
4356 if (skb_shinfo(skb)->tso_size &&
4357 !(large_send == QETH_LARGE_SEND_NO)) {
4358 card->perf_stats.large_send_bytes += skb->len;
4359 card->perf_stats.large_send_cnt++;
4360 }
4361 if (skb_shinfo(skb)->nr_frags > 0){
4362 card->perf_stats.sg_skbs_sent++;
4363 /* nr_frags + skb->data */
4364 card->perf_stats.sg_frags_sent +=
4365 skb_shinfo(skb)->nr_frags + 1;
4366 }
4367 #endif /* CONFIG_QETH_PERF_STATS */
4368 }
4369 if (ctx != NULL) {
4370 /* drop creator's reference */
4371 qeth_eddp_put_context(ctx);
4372 /* free skb; it's not referenced by a buffer */
4373 if (rc == 0)
4374 dev_kfree_skb_any(skb);
4375
4376 }
4377 return rc;
4378 }
4379
4380 static int
4381 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4382 {
4383 struct qeth_card *card = (struct qeth_card *) dev->priv;
4384 int rc = 0;
4385
4386 switch(regnum){
4387 case MII_BMCR: /* Basic mode control register */
4388 rc = BMCR_FULLDPLX;
4389 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4390 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4391 rc |= BMCR_SPEED100;
4392 break;
4393 case MII_BMSR: /* Basic mode status register */
4394 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4395 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4396 BMSR_100BASE4;
4397 break;
4398 case MII_PHYSID1: /* PHYS ID 1 */
4399 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4400 dev->dev_addr[2];
4401 rc = (rc >> 5) & 0xFFFF;
4402 break;
4403 case MII_PHYSID2: /* PHYS ID 2 */
4404 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4405 break;
4406 case MII_ADVERTISE: /* Advertisement control reg */
4407 rc = ADVERTISE_ALL;
4408 break;
4409 case MII_LPA: /* Link partner ability reg */
4410 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4411 LPA_100BASE4 | LPA_LPACK;
4412 break;
4413 case MII_EXPANSION: /* Expansion register */
4414 break;
4415 case MII_DCOUNTER: /* disconnect counter */
4416 break;
4417 case MII_FCSCOUNTER: /* false carrier counter */
4418 break;
4419 case MII_NWAYTEST: /* N-way auto-neg test register */
4420 break;
4421 case MII_RERRCOUNTER: /* rx error counter */
4422 rc = card->stats.rx_errors;
4423 break;
4424 case MII_SREVISION: /* silicon revision */
4425 break;
4426 case MII_RESV1: /* reserved 1 */
4427 break;
4428 case MII_LBRERROR: /* loopback, rx, bypass error */
4429 break;
4430 case MII_PHYADDR: /* physical address */
4431 break;
4432 case MII_RESV2: /* reserved 2 */
4433 break;
4434 case MII_TPISTATUS: /* TPI status for 10mbps */
4435 break;
4436 case MII_NCONFIG: /* network interface config */
4437 break;
4438 default:
4439 rc = 0;
4440 break;
4441 }
4442 return rc;
4443 }
4444
4445 static void
4446 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4447 {
4448 switch(regnum){
4449 case MII_BMCR: /* Basic mode control register */
4450 case MII_BMSR: /* Basic mode status register */
4451 case MII_PHYSID1: /* PHYS ID 1 */
4452 case MII_PHYSID2: /* PHYS ID 2 */
4453 case MII_ADVERTISE: /* Advertisement control reg */
4454 case MII_LPA: /* Link partner ability reg */
4455 case MII_EXPANSION: /* Expansion register */
4456 case MII_DCOUNTER: /* disconnect counter */
4457 case MII_FCSCOUNTER: /* false carrier counter */
4458 case MII_NWAYTEST: /* N-way auto-neg test register */
4459 case MII_RERRCOUNTER: /* rx error counter */
4460 case MII_SREVISION: /* silicon revision */
4461 case MII_RESV1: /* reserved 1 */
4462 case MII_LBRERROR: /* loopback, rx, bypass error */
4463 case MII_PHYADDR: /* physical address */
4464 case MII_RESV2: /* reserved 2 */
4465 case MII_TPISTATUS: /* TPI status for 10mbps */
4466 case MII_NCONFIG: /* network interface config */
4467 default:
4468 break;
4469 }
4470 }
4471
4472 static inline const char *
4473 qeth_arp_get_error_cause(int *rc)
4474 {
4475 switch (*rc) {
4476 case QETH_IPA_ARP_RC_FAILED:
4477 *rc = -EIO;
4478 return "operation failed";
4479 case QETH_IPA_ARP_RC_NOTSUPP:
4480 *rc = -EOPNOTSUPP;
4481 return "operation not supported";
4482 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4483 *rc = -EINVAL;
4484 return "argument out of range";
4485 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4486 *rc = -EOPNOTSUPP;
4487 return "query operation not supported";
4488 case QETH_IPA_ARP_RC_Q_NO_DATA:
4489 *rc = -ENOENT;
4490 return "no query data available";
4491 default:
4492 return "unknown error";
4493 }
4494 }
4495
4496 static int
4497 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4498 __u16, long);
4499
4500 static int
4501 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4502 {
4503 int tmp;
4504 int rc;
4505
4506 QETH_DBF_TEXT(trace,3,"arpstnoe");
4507
4508 /*
4509 * currently GuestLAN only supports the ARP assist function
4510 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4511 * thus we say EOPNOTSUPP for this ARP function
4512 */
4513 if (card->info.guestlan)
4514 return -EOPNOTSUPP;
4515 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4516 PRINT_WARN("ARP processing not supported "
4517 "on %s!\n", QETH_CARD_IFNAME(card));
4518 return -EOPNOTSUPP;
4519 }
4520 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4521 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4522 no_entries);
4523 if (rc) {
4524 tmp = rc;
4525 PRINT_WARN("Could not set number of ARP entries on %s: "
4526 "%s (0x%x/%d)\n",
4527 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4528 tmp, tmp);
4529 }
4530 return rc;
4531 }
4532
4533 static inline void
4534 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4535 struct qeth_arp_query_data *qdata,
4536 int entry_size, int uentry_size)
4537 {
4538 char *entry_ptr;
4539 char *uentry_ptr;
4540 int i;
4541
4542 entry_ptr = (char *)&qdata->data;
4543 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4544 for (i = 0; i < qdata->no_entries; ++i){
4545 /* strip off 32 bytes "media specific information" */
4546 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4547 entry_ptr += entry_size;
4548 uentry_ptr += uentry_size;
4549 }
4550 }
4551
4552 static int
4553 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4554 unsigned long data)
4555 {
4556 struct qeth_ipa_cmd *cmd;
4557 struct qeth_arp_query_data *qdata;
4558 struct qeth_arp_query_info *qinfo;
4559 int entry_size;
4560 int uentry_size;
4561 int i;
4562
4563 QETH_DBF_TEXT(trace,4,"arpquecb");
4564
4565 qinfo = (struct qeth_arp_query_info *) reply->param;
4566 cmd = (struct qeth_ipa_cmd *) data;
4567 if (cmd->hdr.return_code) {
4568 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4569 return 0;
4570 }
4571 if (cmd->data.setassparms.hdr.return_code) {
4572 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4573 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4574 return 0;
4575 }
4576 qdata = &cmd->data.setassparms.data.query_arp;
4577 switch(qdata->reply_bits){
4578 case 5:
4579 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4580 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4581 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4582 break;
4583 case 7:
4584 /* fall through to default */
4585 default:
4586 /* tr is the same as eth -> entry7 */
4587 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4588 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4589 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4590 break;
4591 }
4592 /* check if there is enough room in userspace */
4593 if ((qinfo->udata_len - qinfo->udata_offset) <
4594 qdata->no_entries * uentry_size){
4595 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4596 cmd->hdr.return_code = -ENOMEM;
4597 PRINT_WARN("query ARP user space buffer is too small for "
4598 "the returned number of ARP entries. "
4599 "Aborting query!\n");
4600 goto out_error;
4601 }
4602 QETH_DBF_TEXT_(trace, 4, "anore%i",
4603 cmd->data.setassparms.hdr.number_of_replies);
4604 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4605 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4606
4607 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4608 /* strip off "media specific information" */
4609 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4610 uentry_size);
4611 } else
4612 /*copy entries to user buffer*/
4613 memcpy(qinfo->udata + qinfo->udata_offset,
4614 (char *)&qdata->data, qdata->no_entries*uentry_size);
4615
4616 qinfo->no_entries += qdata->no_entries;
4617 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4618 /* check if all replies received ... */
4619 if (cmd->data.setassparms.hdr.seq_no <
4620 cmd->data.setassparms.hdr.number_of_replies)
4621 return 1;
4622 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4623 /* keep STRIP_ENTRIES flag so the user program can distinguish
4624 * stripped entries from normal ones */
4625 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4626 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4627 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4628 return 0;
4629 out_error:
4630 i = 0;
4631 memcpy(qinfo->udata, &i, 4);
4632 return 0;
4633 }
4634
4635 static int
4636 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4637 int len, int (*reply_cb)(struct qeth_card *,
4638 struct qeth_reply *,
4639 unsigned long),
4640 void *reply_param)
4641 {
4642 QETH_DBF_TEXT(trace,4,"sendarp");
4643
4644 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4645 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4646 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4647 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4648 reply_cb, reply_param);
4649 }
4650
4651 static int
4652 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4653 int len, int (*reply_cb)(struct qeth_card *,
4654 struct qeth_reply *,
4655 unsigned long),
4656 void *reply_param)
4657 {
4658 u16 s1, s2;
4659
4660 QETH_DBF_TEXT(trace,4,"sendsnmp");
4661
4662 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4663 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4664 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4665 /* adjust PDU length fields in IPA_PDU_HEADER */
4666 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4667 s2 = (u32) len;
4668 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4669 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4670 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4671 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4672 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4673 reply_cb, reply_param);
4674 }
4675
4676 static struct qeth_cmd_buffer *
4677 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4678 __u16, __u16, enum qeth_prot_versions);
4679 static int
4680 qeth_arp_query(struct qeth_card *card, char *udata)
4681 {
4682 struct qeth_cmd_buffer *iob;
4683 struct qeth_arp_query_info qinfo = {0, };
4684 int tmp;
4685 int rc;
4686
4687 QETH_DBF_TEXT(trace,3,"arpquery");
4688
4689 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4690 IPA_ARP_PROCESSING)) {
4691 PRINT_WARN("ARP processing not supported "
4692 "on %s!\n", QETH_CARD_IFNAME(card));
4693 return -EOPNOTSUPP;
4694 }
4695 /* get size of userspace buffer and mask_bits -> 6 bytes */
4696 if (copy_from_user(&qinfo, udata, 6))
4697 return -EFAULT;
4698 if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4699 return -ENOMEM;
4700 memset(qinfo.udata, 0, qinfo.udata_len);
4701 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4702 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4703 IPA_CMD_ASS_ARP_QUERY_INFO,
4704 sizeof(int),QETH_PROT_IPV4);
4705
4706 rc = qeth_send_ipa_arp_cmd(card, iob,
4707 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4708 qeth_arp_query_cb, (void *)&qinfo);
4709 if (rc) {
4710 tmp = rc;
4711 PRINT_WARN("Error while querying ARP cache on %s: %s "
4712 "(0x%x/%d)\n",
4713 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4714 tmp, tmp);
4715 copy_to_user(udata, qinfo.udata, 4);
4716 } else {
4717 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4718 }
4719 kfree(qinfo.udata);
4720 return rc;
4721 }
4722
4723 /**
4724 * SNMP command callback
4725 */
4726 static int
4727 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4728 unsigned long sdata)
4729 {
4730 struct qeth_ipa_cmd *cmd;
4731 struct qeth_arp_query_info *qinfo;
4732 struct qeth_snmp_cmd *snmp;
4733 unsigned char *data;
4734 __u16 data_len;
4735
4736 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4737
4738 cmd = (struct qeth_ipa_cmd *) sdata;
4739 data = (unsigned char *)((char *)cmd - reply->offset);
4740 qinfo = (struct qeth_arp_query_info *) reply->param;
4741 snmp = &cmd->data.setadapterparms.data.snmp;
4742
4743 if (cmd->hdr.return_code) {
4744 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4745 return 0;
4746 }
4747 if (cmd->data.setadapterparms.hdr.return_code) {
4748 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4749 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4750 return 0;
4751 }
4752 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4753 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4754 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4755 else
4756 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4757
4758 /* check if there is enough room in userspace */
4759 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4760 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4761 cmd->hdr.return_code = -ENOMEM;
4762 return 0;
4763 }
4764 QETH_DBF_TEXT_(trace, 4, "snore%i",
4765 cmd->data.setadapterparms.hdr.used_total);
4766 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4767 /*copy entries to user buffer*/
4768 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4769 memcpy(qinfo->udata + qinfo->udata_offset,
4770 (char *)snmp,
4771 data_len + offsetof(struct qeth_snmp_cmd,data));
4772 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4773 } else {
4774 memcpy(qinfo->udata + qinfo->udata_offset,
4775 (char *)&snmp->request, data_len);
4776 }
4777 qinfo->udata_offset += data_len;
4778 /* check if all replies received ... */
4779 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4780 cmd->data.setadapterparms.hdr.used_total);
4781 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4782 cmd->data.setadapterparms.hdr.seq_no);
4783 if (cmd->data.setadapterparms.hdr.seq_no <
4784 cmd->data.setadapterparms.hdr.used_total)
4785 return 1;
4786 return 0;
4787 }
4788
4789 static struct qeth_cmd_buffer *
4790 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4791 enum qeth_prot_versions );
4792
4793 static struct qeth_cmd_buffer *
4794 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4795 {
4796 struct qeth_cmd_buffer *iob;
4797 struct qeth_ipa_cmd *cmd;
4798
4799 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4800 QETH_PROT_IPV4);
4801 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4802 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4803 cmd->data.setadapterparms.hdr.command_code = command;
4804 cmd->data.setadapterparms.hdr.used_total = 1;
4805 cmd->data.setadapterparms.hdr.seq_no = 1;
4806
4807 return iob;
4808 }
4809
4810 /**
4811 * function to send SNMP commands to OSA-E card
4812 */
4813 static int
4814 qeth_snmp_command(struct qeth_card *card, char *udata)
4815 {
4816 struct qeth_cmd_buffer *iob;
4817 struct qeth_ipa_cmd *cmd;
4818 struct qeth_snmp_ureq *ureq;
4819 int req_len;
4820 struct qeth_arp_query_info qinfo = {0, };
4821 int rc = 0;
4822
4823 QETH_DBF_TEXT(trace,3,"snmpcmd");
4824
4825 if (card->info.guestlan)
4826 return -EOPNOTSUPP;
4827
4828 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4829 (!card->options.layer2) ) {
4830 PRINT_WARN("SNMP Query MIBS not supported "
4831 "on %s!\n", QETH_CARD_IFNAME(card));
4832 return -EOPNOTSUPP;
4833 }
4834 /* skip 4 bytes (data_len struct member) to get req_len */
4835 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4836 return -EFAULT;
4837 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4838 if (!ureq) {
4839 QETH_DBF_TEXT(trace, 2, "snmpnome");
4840 return -ENOMEM;
4841 }
4842 if (copy_from_user(ureq, udata,
4843 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4844 kfree(ureq);
4845 return -EFAULT;
4846 }
4847 qinfo.udata_len = ureq->hdr.data_len;
4848 if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4849 kfree(ureq);
4850 return -ENOMEM;
4851 }
4852 memset(qinfo.udata, 0, qinfo.udata_len);
4853 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4854
4855 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4856 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4857 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4858 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4859 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4860 qeth_snmp_command_cb, (void *)&qinfo);
4861 if (rc)
4862 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4863 QETH_CARD_IFNAME(card), rc);
4864 else
4865 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4866
4867 kfree(ureq);
4868 kfree(qinfo.udata);
4869 return rc;
4870 }
4871
4872 static int
4873 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4874 unsigned long);
4875
4876 static int
4877 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4878 __u16, long,
4879 int (*reply_cb)
4880 (struct qeth_card *, struct qeth_reply *, unsigned long),
4881 void *reply_param);
4882
4883 static int
4884 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4885 {
4886 struct qeth_cmd_buffer *iob;
4887 char buf[16];
4888 int tmp;
4889 int rc;
4890
4891 QETH_DBF_TEXT(trace,3,"arpadent");
4892
4893 /*
4894 * currently GuestLAN only supports the ARP assist function
4895 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
4896 * thus we say EOPNOTSUPP for this ARP function
4897 */
4898 if (card->info.guestlan)
4899 return -EOPNOTSUPP;
4900 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4901 PRINT_WARN("ARP processing not supported "
4902 "on %s!\n", QETH_CARD_IFNAME(card));
4903 return -EOPNOTSUPP;
4904 }
4905
4906 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4907 IPA_CMD_ASS_ARP_ADD_ENTRY,
4908 sizeof(struct qeth_arp_cache_entry),
4909 QETH_PROT_IPV4);
4910 rc = qeth_send_setassparms(card, iob,
4911 sizeof(struct qeth_arp_cache_entry),
4912 (unsigned long) entry,
4913 qeth_default_setassparms_cb, NULL);
4914 if (rc) {
4915 tmp = rc;
4916 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4917 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4918 "%s (0x%x/%d)\n",
4919 buf, QETH_CARD_IFNAME(card),
4920 qeth_arp_get_error_cause(&rc), tmp, tmp);
4921 }
4922 return rc;
4923 }
4924
4925 static int
4926 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4927 {
4928 struct qeth_cmd_buffer *iob;
4929 char buf[16] = {0, };
4930 int tmp;
4931 int rc;
4932
4933 QETH_DBF_TEXT(trace,3,"arprment");
4934
4935 /*
4936 * currently GuestLAN only supports the ARP assist function
4937 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
4938 * thus we say EOPNOTSUPP for this ARP function
4939 */
4940 if (card->info.guestlan)
4941 return -EOPNOTSUPP;
4942 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4943 PRINT_WARN("ARP processing not supported "
4944 "on %s!\n", QETH_CARD_IFNAME(card));
4945 return -EOPNOTSUPP;
4946 }
4947 memcpy(buf, entry, 12);
4948 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4949 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
4950 12,
4951 QETH_PROT_IPV4);
4952 rc = qeth_send_setassparms(card, iob,
4953 12, (unsigned long)buf,
4954 qeth_default_setassparms_cb, NULL);
4955 if (rc) {
4956 tmp = rc;
4957 memset(buf, 0, 16);
4958 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4959 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
4960 "%s (0x%x/%d)\n",
4961 buf, QETH_CARD_IFNAME(card),
4962 qeth_arp_get_error_cause(&rc), tmp, tmp);
4963 }
4964 return rc;
4965 }
4966
4967 static int
4968 qeth_arp_flush_cache(struct qeth_card *card)
4969 {
4970 int rc;
4971 int tmp;
4972
4973 QETH_DBF_TEXT(trace,3,"arpflush");
4974
4975 /*
4976 * currently GuestLAN only supports the ARP assist function
4977 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
4978 * thus we say EOPNOTSUPP for this ARP function
4979 */
4980 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
4981 return -EOPNOTSUPP;
4982 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4983 PRINT_WARN("ARP processing not supported "
4984 "on %s!\n", QETH_CARD_IFNAME(card));
4985 return -EOPNOTSUPP;
4986 }
4987 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4988 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
4989 if (rc){
4990 tmp = rc;
4991 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
4992 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4993 tmp, tmp);
4994 }
4995 return rc;
4996 }
4997
4998 static int
4999 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5000 {
5001 struct qeth_card *card = (struct qeth_card *)dev->priv;
5002 struct qeth_arp_cache_entry arp_entry;
5003 struct mii_ioctl_data *mii_data;
5004 int rc = 0;
5005
5006 if (!card)
5007 return -ENODEV;
5008
5009 if ((card->state != CARD_STATE_UP) &&
5010 (card->state != CARD_STATE_SOFTSETUP))
5011 return -ENODEV;
5012
5013 switch (cmd){
5014 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5015 if ( !capable(CAP_NET_ADMIN) ||
5016 (card->options.layer2) ) {
5017 rc = -EPERM;
5018 break;
5019 }
5020 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5021 break;
5022 case SIOC_QETH_ARP_QUERY_INFO:
5023 if ( !capable(CAP_NET_ADMIN) ||
5024 (card->options.layer2) ) {
5025 rc = -EPERM;
5026 break;
5027 }
5028 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5029 break;
5030 case SIOC_QETH_ARP_ADD_ENTRY:
5031 if ( !capable(CAP_NET_ADMIN) ||
5032 (card->options.layer2) ) {
5033 rc = -EPERM;
5034 break;
5035 }
5036 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5037 sizeof(struct qeth_arp_cache_entry)))
5038 rc = -EFAULT;
5039 else
5040 rc = qeth_arp_add_entry(card, &arp_entry);
5041 break;
5042 case SIOC_QETH_ARP_REMOVE_ENTRY:
5043 if ( !capable(CAP_NET_ADMIN) ||
5044 (card->options.layer2) ) {
5045 rc = -EPERM;
5046 break;
5047 }
5048 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5049 sizeof(struct qeth_arp_cache_entry)))
5050 rc = -EFAULT;
5051 else
5052 rc = qeth_arp_remove_entry(card, &arp_entry);
5053 break;
5054 case SIOC_QETH_ARP_FLUSH_CACHE:
5055 if ( !capable(CAP_NET_ADMIN) ||
5056 (card->options.layer2) ) {
5057 rc = -EPERM;
5058 break;
5059 }
5060 rc = qeth_arp_flush_cache(card);
5061 break;
5062 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5063 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5064 break;
5065 case SIOC_QETH_GET_CARD_TYPE:
5066 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5067 !card->info.guestlan)
5068 return 1;
5069 return 0;
5070 break;
5071 case SIOCGMIIPHY:
5072 mii_data = if_mii(rq);
5073 mii_data->phy_id = 0;
5074 break;
5075 case SIOCGMIIREG:
5076 mii_data = if_mii(rq);
5077 if (mii_data->phy_id != 0)
5078 rc = -EINVAL;
5079 else
5080 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5081 mii_data->reg_num);
5082 break;
5083 case SIOCSMIIREG:
5084 rc = -EOPNOTSUPP;
5085 break;
5086 /* TODO: remove return if qeth_mdio_write does something */
5087 if (!capable(CAP_NET_ADMIN)){
5088 rc = -EPERM;
5089 break;
5090 }
5091 mii_data = if_mii(rq);
5092 if (mii_data->phy_id != 0)
5093 rc = -EINVAL;
5094 else
5095 qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5096 mii_data->val_in);
5097 break;
5098 default:
5099 rc = -EOPNOTSUPP;
5100 }
5101 if (rc)
5102 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5103 return rc;
5104 }
5105
5106 static struct net_device_stats *
5107 qeth_get_stats(struct net_device *dev)
5108 {
5109 struct qeth_card *card;
5110
5111 card = (struct qeth_card *) (dev->priv);
5112
5113 QETH_DBF_TEXT(trace,5,"getstat");
5114
5115 return &card->stats;
5116 }
5117
5118 static int
5119 qeth_change_mtu(struct net_device *dev, int new_mtu)
5120 {
5121 struct qeth_card *card;
5122 char dbf_text[15];
5123
5124 card = (struct qeth_card *) (dev->priv);
5125
5126 QETH_DBF_TEXT(trace,4,"chgmtu");
5127 sprintf(dbf_text, "%8x", new_mtu);
5128 QETH_DBF_TEXT(trace,4,dbf_text);
5129
5130 if (new_mtu < 64)
5131 return -EINVAL;
5132 if (new_mtu > 65535)
5133 return -EINVAL;
5134 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5135 (!qeth_mtu_is_valid(card, new_mtu)))
5136 return -EINVAL;
5137 dev->mtu = new_mtu;
5138 return 0;
5139 }
5140
5141 #ifdef CONFIG_QETH_VLAN
5142 static void
5143 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5144 {
5145 struct qeth_card *card;
5146 unsigned long flags;
5147
5148 QETH_DBF_TEXT(trace,4,"vlanreg");
5149
5150 card = (struct qeth_card *) dev->priv;
5151 spin_lock_irqsave(&card->vlanlock, flags);
5152 card->vlangrp = grp;
5153 spin_unlock_irqrestore(&card->vlanlock, flags);
5154 }
5155
5156 static inline void
5157 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5158 unsigned short vid)
5159 {
5160 int i;
5161 struct sk_buff *skb;
5162 struct sk_buff_head tmp_list;
5163
5164 skb_queue_head_init(&tmp_list);
5165 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5166 while ((skb = skb_dequeue(&buf->skb_list))){
5167 if (vlan_tx_tag_present(skb) &&
5168 (vlan_tx_tag_get(skb) == vid)) {
5169 atomic_dec(&skb->users);
5170 dev_kfree_skb(skb);
5171 } else
5172 skb_queue_tail(&tmp_list, skb);
5173 }
5174 }
5175 while ((skb = skb_dequeue(&tmp_list)))
5176 skb_queue_tail(&buf->skb_list, skb);
5177 }
5178
5179 static void
5180 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5181 {
5182 int i, j;
5183
5184 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5185 for (i = 0; i < card->qdio.no_out_queues; ++i){
5186 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5187 qeth_free_vlan_buffer(card, &card->qdio.
5188 out_qs[i]->bufs[j], vid);
5189 }
5190 }
5191
5192 static void
5193 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5194 {
5195 struct in_device *in_dev;
5196 struct in_ifaddr *ifa;
5197 struct qeth_ipaddr *addr;
5198
5199 QETH_DBF_TEXT(trace, 4, "frvaddr4");
5200 if (!card->vlangrp)
5201 return;
5202 rcu_read_lock();
5203 in_dev = __in_dev_get(card->vlangrp->vlan_devices[vid]);
5204 if (!in_dev)
5205 goto out;
5206 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5207 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5208 if (addr){
5209 addr->u.a4.addr = ifa->ifa_address;
5210 addr->u.a4.mask = ifa->ifa_mask;
5211 addr->type = QETH_IP_TYPE_NORMAL;
5212 if (!qeth_delete_ip(card, addr))
5213 kfree(addr);
5214 }
5215 }
5216 out:
5217 rcu_read_unlock();
5218 }
5219
5220 static void
5221 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5222 {
5223 #ifdef CONFIG_QETH_IPV6
5224 struct inet6_dev *in6_dev;
5225 struct inet6_ifaddr *ifa;
5226 struct qeth_ipaddr *addr;
5227
5228 QETH_DBF_TEXT(trace, 4, "frvaddr6");
5229 if (!card->vlangrp)
5230 return;
5231 in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5232 if (!in6_dev)
5233 return;
5234 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5235 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5236 if (addr){
5237 memcpy(&addr->u.a6.addr, &ifa->addr,
5238 sizeof(struct in6_addr));
5239 addr->u.a6.pfxlen = ifa->prefix_len;
5240 addr->type = QETH_IP_TYPE_NORMAL;
5241 if (!qeth_delete_ip(card, addr))
5242 kfree(addr);
5243 }
5244 }
5245 in6_dev_put(in6_dev);
5246 #endif /* CONFIG_QETH_IPV6 */
5247 }
5248
5249 static void
5250 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5251 enum qeth_ipa_cmds ipacmd)
5252 {
5253 int rc;
5254 struct qeth_ipa_cmd *cmd;
5255 struct qeth_cmd_buffer *iob;
5256
5257 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5258 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5259 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5260 cmd->data.setdelvlan.vlan_id = i;
5261
5262 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5263 if (rc) {
5264 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5265 "Continuing\n",i, QETH_CARD_IFNAME(card), rc);
5266 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", ipacmd);
5267 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5268 QETH_DBF_TEXT_(trace, 2, "err%d", rc);
5269 }
5270 }
5271
5272 static void
5273 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5274 {
5275 unsigned short i;
5276
5277 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5278
5279 if (!card->vlangrp)
5280 return;
5281 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5282 if (card->vlangrp->vlan_devices[i] == NULL)
5283 continue;
5284 if (clear)
5285 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5286 else
5287 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5288 }
5289 }
5290
5291 /*add_vid is layer 2 used only ....*/
5292 static void
5293 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5294 {
5295 struct qeth_card *card;
5296
5297 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5298
5299 card = (struct qeth_card *) dev->priv;
5300 if (!card->options.layer2)
5301 return;
5302 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5303 }
5304
5305 /*... kill_vid used for both modes*/
5306 static void
5307 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5308 {
5309 struct qeth_card *card;
5310 unsigned long flags;
5311
5312 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5313
5314 card = (struct qeth_card *) dev->priv;
5315 /* free all skbs for the vlan device */
5316 qeth_free_vlan_skbs(card, vid);
5317 spin_lock_irqsave(&card->vlanlock, flags);
5318 /* unregister IP addresses of vlan device */
5319 qeth_free_vlan_addresses4(card, vid);
5320 qeth_free_vlan_addresses6(card, vid);
5321 if (card->vlangrp)
5322 card->vlangrp->vlan_devices[vid] = NULL;
5323 spin_unlock_irqrestore(&card->vlanlock, flags);
5324 if (card->options.layer2)
5325 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5326 qeth_set_multicast_list(card->dev);
5327 }
5328 #endif
5329
5330 /**
5331 * set multicast address on card
5332 */
5333 static void
5334 qeth_set_multicast_list(struct net_device *dev)
5335 {
5336 struct qeth_card *card = (struct qeth_card *) dev->priv;
5337
5338 QETH_DBF_TEXT(trace,3,"setmulti");
5339 qeth_delete_mc_addresses(card);
5340 qeth_add_multicast_ipv4(card);
5341 #ifdef CONFIG_QETH_IPV6
5342 qeth_add_multicast_ipv6(card);
5343 #endif
5344 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5345 schedule_work(&card->kernel_thread_starter);
5346 }
5347
5348 static int
5349 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5350 {
5351 return 0;
5352 }
5353
5354 static void
5355 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5356 {
5357 if (dev->type == ARPHRD_IEEE802_TR)
5358 ip_tr_mc_map(ipm, mac);
5359 else
5360 ip_eth_mc_map(ipm, mac);
5361 }
5362
5363 static struct qeth_ipaddr *
5364 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5365 {
5366 struct qeth_ipaddr *addr;
5367
5368 addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5369 if (addr == NULL) {
5370 PRINT_WARN("Not enough memory to add address\n");
5371 return NULL;
5372 }
5373 memset(addr,0,sizeof(struct qeth_ipaddr));
5374 addr->type = QETH_IP_TYPE_NORMAL;
5375 addr->proto = prot;
5376 return addr;
5377 }
5378
5379 static void
5380 qeth_delete_mc_addresses(struct qeth_card *card)
5381 {
5382 struct qeth_ipaddr *iptodo;
5383 unsigned long flags;
5384
5385 QETH_DBF_TEXT(trace,4,"delmc");
5386 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5387 if (!iptodo) {
5388 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5389 return;
5390 }
5391 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5392 spin_lock_irqsave(&card->ip_lock, flags);
5393 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5394 kfree(iptodo);
5395 spin_unlock_irqrestore(&card->ip_lock, flags);
5396 }
5397
5398 static inline void
5399 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5400 {
5401 struct qeth_ipaddr *ipm;
5402 struct ip_mc_list *im4;
5403 char buf[MAX_ADDR_LEN];
5404
5405 QETH_DBF_TEXT(trace,4,"addmc");
5406 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5407 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5408 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5409 if (!ipm)
5410 continue;
5411 ipm->u.a4.addr = im4->multiaddr;
5412 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5413 ipm->is_multicast = 1;
5414 if (!qeth_add_ip(card,ipm))
5415 kfree(ipm);
5416 }
5417 }
5418
5419 static inline void
5420 qeth_add_vlan_mc(struct qeth_card *card)
5421 {
5422 #ifdef CONFIG_QETH_VLAN
5423 struct in_device *in_dev;
5424 struct vlan_group *vg;
5425 int i;
5426
5427 QETH_DBF_TEXT(trace,4,"addmcvl");
5428 if ( ((card->options.layer2 == 0) &&
5429 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5430 (card->vlangrp == NULL) )
5431 return ;
5432
5433 vg = card->vlangrp;
5434 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5435 if (vg->vlan_devices[i] == NULL ||
5436 !(vg->vlan_devices[i]->flags & IFF_UP))
5437 continue;
5438 in_dev = in_dev_get(vg->vlan_devices[i]);
5439 if (!in_dev)
5440 continue;
5441 read_lock(&in_dev->mc_list_lock);
5442 qeth_add_mc(card,in_dev);
5443 read_unlock(&in_dev->mc_list_lock);
5444 in_dev_put(in_dev);
5445 }
5446 #endif
5447 }
5448
5449 static void
5450 qeth_add_multicast_ipv4(struct qeth_card *card)
5451 {
5452 struct in_device *in4_dev;
5453
5454 QETH_DBF_TEXT(trace,4,"chkmcv4");
5455 in4_dev = in_dev_get(card->dev);
5456 if (in4_dev == NULL)
5457 return;
5458 read_lock(&in4_dev->mc_list_lock);
5459 qeth_add_mc(card, in4_dev);
5460 qeth_add_vlan_mc(card);
5461 read_unlock(&in4_dev->mc_list_lock);
5462 in_dev_put(in4_dev);
5463 }
5464
5465 #ifdef CONFIG_QETH_IPV6
5466 static inline void
5467 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5468 {
5469 struct qeth_ipaddr *ipm;
5470 struct ifmcaddr6 *im6;
5471 char buf[MAX_ADDR_LEN];
5472
5473 QETH_DBF_TEXT(trace,4,"addmc6");
5474 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5475 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5476 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5477 if (!ipm)
5478 continue;
5479 ipm->is_multicast = 1;
5480 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5481 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5482 sizeof(struct in6_addr));
5483 if (!qeth_add_ip(card,ipm))
5484 kfree(ipm);
5485 }
5486 }
5487
5488 static inline void
5489 qeth_add_vlan_mc6(struct qeth_card *card)
5490 {
5491 #ifdef CONFIG_QETH_VLAN
5492 struct inet6_dev *in_dev;
5493 struct vlan_group *vg;
5494 int i;
5495
5496 QETH_DBF_TEXT(trace,4,"admc6vl");
5497 if ( ((card->options.layer2 == 0) &&
5498 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5499 (card->vlangrp == NULL))
5500 return ;
5501
5502 vg = card->vlangrp;
5503 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5504 if (vg->vlan_devices[i] == NULL ||
5505 !(vg->vlan_devices[i]->flags & IFF_UP))
5506 continue;
5507 in_dev = in6_dev_get(vg->vlan_devices[i]);
5508 if (!in_dev)
5509 continue;
5510 read_lock(&in_dev->lock);
5511 qeth_add_mc6(card,in_dev);
5512 read_unlock(&in_dev->lock);
5513 in6_dev_put(in_dev);
5514 }
5515 #endif /* CONFIG_QETH_VLAN */
5516 }
5517
5518 static void
5519 qeth_add_multicast_ipv6(struct qeth_card *card)
5520 {
5521 struct inet6_dev *in6_dev;
5522
5523 QETH_DBF_TEXT(trace,4,"chkmcv6");
5524 if ((card->options.layer2 == 0) &&
5525 (!qeth_is_supported(card, IPA_IPV6)) )
5526 return ;
5527
5528 in6_dev = in6_dev_get(card->dev);
5529 if (in6_dev == NULL)
5530 return;
5531 read_lock(&in6_dev->lock);
5532 qeth_add_mc6(card, in6_dev);
5533 qeth_add_vlan_mc6(card);
5534 read_unlock(&in6_dev->lock);
5535 in6_dev_put(in6_dev);
5536 }
5537 #endif /* CONFIG_QETH_IPV6 */
5538
5539 static int
5540 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5541 enum qeth_ipa_cmds ipacmd,
5542 int (*reply_cb) (struct qeth_card *,
5543 struct qeth_reply*,
5544 unsigned long))
5545 {
5546 struct qeth_ipa_cmd *cmd;
5547 struct qeth_cmd_buffer *iob;
5548
5549 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5550 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5551 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5552 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5553 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5554 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5555 }
5556
5557 static int
5558 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5559 struct qeth_reply *reply,
5560 unsigned long data)
5561 {
5562 struct qeth_ipa_cmd *cmd;
5563 __u8 *mac;
5564
5565 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5566 cmd = (struct qeth_ipa_cmd *) data;
5567 mac = &cmd->data.setdelmac.mac[0];
5568 /* MAC already registered, needed in couple/uncouple case */
5569 if (cmd->hdr.return_code == 0x2005) {
5570 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5571 "already existing on %s \n",
5572 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5573 QETH_CARD_IFNAME(card));
5574 cmd->hdr.return_code = 0;
5575 }
5576 if (cmd->hdr.return_code)
5577 PRINT_ERR("Could not set group MAC " \
5578 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5579 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5580 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5581 return 0;
5582 }
5583
5584 static int
5585 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5586 {
5587 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5588 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5589 qeth_layer2_send_setgroupmac_cb);
5590 }
5591
5592 static int
5593 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5594 struct qeth_reply *reply,
5595 unsigned long data)
5596 {
5597 struct qeth_ipa_cmd *cmd;
5598 __u8 *mac;
5599
5600 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5601 cmd = (struct qeth_ipa_cmd *) data;
5602 mac = &cmd->data.setdelmac.mac[0];
5603 if (cmd->hdr.return_code)
5604 PRINT_ERR("Could not delete group MAC " \
5605 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5606 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5607 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5608 return 0;
5609 }
5610
5611 static int
5612 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5613 {
5614 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5615 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5616 qeth_layer2_send_delgroupmac_cb);
5617 }
5618
5619 static int
5620 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5621 struct qeth_reply *reply,
5622 unsigned long data)
5623 {
5624 struct qeth_ipa_cmd *cmd;
5625
5626 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5627 cmd = (struct qeth_ipa_cmd *) data;
5628 if (cmd->hdr.return_code) {
5629 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5630 PRINT_WARN("Error in registering MAC address on " \
5631 "device %s: x%x\n", CARD_BUS_ID(card),
5632 cmd->hdr.return_code);
5633 card->info.layer2_mac_registered = 0;
5634 cmd->hdr.return_code = -EIO;
5635 } else {
5636 card->info.layer2_mac_registered = 1;
5637 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5638 OSA_ADDR_LEN);
5639 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5640 "successfully registered on device %s\n",
5641 card->dev->dev_addr[0], card->dev->dev_addr[1],
5642 card->dev->dev_addr[2], card->dev->dev_addr[3],
5643 card->dev->dev_addr[4], card->dev->dev_addr[5],
5644 card->dev->name);
5645 }
5646 return 0;
5647 }
5648
5649 static int
5650 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5651 {
5652 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5653 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5654 qeth_layer2_send_setmac_cb);
5655 }
5656
5657 static int
5658 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5659 struct qeth_reply *reply,
5660 unsigned long data)
5661 {
5662 struct qeth_ipa_cmd *cmd;
5663
5664 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5665 cmd = (struct qeth_ipa_cmd *) data;
5666 if (cmd->hdr.return_code) {
5667 PRINT_WARN("Error in deregistering MAC address on " \
5668 "device %s: x%x\n", CARD_BUS_ID(card),
5669 cmd->hdr.return_code);
5670 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5671 cmd->hdr.return_code = -EIO;
5672 return 0;
5673 }
5674 card->info.layer2_mac_registered = 0;
5675
5676 return 0;
5677 }
5678 static int
5679 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5680 {
5681 QETH_DBF_TEXT(trace, 2, "L2Delmac");
5682 if (!card->info.layer2_mac_registered)
5683 return 0;
5684 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5685 qeth_layer2_send_delmac_cb);
5686 }
5687
5688 static int
5689 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5690 {
5691 struct sockaddr *addr = p;
5692 struct qeth_card *card;
5693 int rc = 0;
5694
5695 QETH_DBF_TEXT(trace, 3, "setmac");
5696
5697 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5698 QETH_DBF_TEXT(trace, 3, "setmcINV");
5699 return -EOPNOTSUPP;
5700 }
5701 card = (struct qeth_card *) dev->priv;
5702
5703 if (!card->options.layer2) {
5704 PRINT_WARN("Setting MAC address on %s is not supported"
5705 "in Layer 3 mode.\n", dev->name);
5706 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5707 return -EOPNOTSUPP;
5708 }
5709 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5710 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5711 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5712 if (!rc)
5713 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5714 return rc;
5715 }
5716
5717 static void
5718 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5719 __u8 command, enum qeth_prot_versions prot)
5720 {
5721 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5722 cmd->hdr.command = command;
5723 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5724 cmd->hdr.seqno = card->seqno.ipa;
5725 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5726 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5727 if (card->options.layer2)
5728 cmd->hdr.prim_version_no = 2;
5729 else
5730 cmd->hdr.prim_version_no = 1;
5731 cmd->hdr.param_count = 1;
5732 cmd->hdr.prot_version = prot;
5733 cmd->hdr.ipa_supported = 0;
5734 cmd->hdr.ipa_enabled = 0;
5735 }
5736
5737 static struct qeth_cmd_buffer *
5738 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5739 enum qeth_prot_versions prot)
5740 {
5741 struct qeth_cmd_buffer *iob;
5742 struct qeth_ipa_cmd *cmd;
5743
5744 iob = qeth_wait_for_buffer(&card->write);
5745 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5746 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
5747
5748 return iob;
5749 }
5750
5751 static int
5752 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
5753 {
5754 int rc;
5755 struct qeth_cmd_buffer *iob;
5756 struct qeth_ipa_cmd *cmd;
5757
5758 QETH_DBF_TEXT(trace,4,"setdelmc");
5759
5760 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5761 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5762 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
5763 if (addr->proto == QETH_PROT_IPV6)
5764 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
5765 sizeof(struct in6_addr));
5766 else
5767 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
5768
5769 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5770
5771 return rc;
5772 }
5773 static inline void
5774 qeth_fill_netmask(u8 *netmask, unsigned int len)
5775 {
5776 int i,j;
5777 for (i=0;i<16;i++) {
5778 j=(len)-(i*8);
5779 if (j >= 8)
5780 netmask[i] = 0xff;
5781 else if (j > 0)
5782 netmask[i] = (u8)(0xFF00>>j);
5783 else
5784 netmask[i] = 0;
5785 }
5786 }
5787
5788 static int
5789 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
5790 int ipacmd, unsigned int flags)
5791 {
5792 int rc;
5793 struct qeth_cmd_buffer *iob;
5794 struct qeth_ipa_cmd *cmd;
5795 __u8 netmask[16];
5796
5797 QETH_DBF_TEXT(trace,4,"setdelip");
5798 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
5799
5800 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5801 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5802 if (addr->proto == QETH_PROT_IPV6) {
5803 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
5804 sizeof(struct in6_addr));
5805 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
5806 memcpy(cmd->data.setdelip6.mask, netmask,
5807 sizeof(struct in6_addr));
5808 cmd->data.setdelip6.flags = flags;
5809 } else {
5810 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
5811 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
5812 cmd->data.setdelip4.flags = flags;
5813 }
5814
5815 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5816
5817 return rc;
5818 }
5819
5820 static int
5821 qeth_layer2_register_addr_entry(struct qeth_card *card,
5822 struct qeth_ipaddr *addr)
5823 {
5824 if (!addr->is_multicast)
5825 return 0;
5826 QETH_DBF_TEXT(trace, 2, "setgmac");
5827 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
5828 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
5829 }
5830
5831 static int
5832 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
5833 struct qeth_ipaddr *addr)
5834 {
5835 if (!addr->is_multicast)
5836 return 0;
5837 QETH_DBF_TEXT(trace, 2, "delgmac");
5838 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
5839 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
5840 }
5841
5842 static int
5843 qeth_layer3_register_addr_entry(struct qeth_card *card,
5844 struct qeth_ipaddr *addr)
5845 {
5846 char buf[50];
5847 int rc;
5848 int cnt = 3;
5849
5850 if (addr->proto == QETH_PROT_IPV4) {
5851 QETH_DBF_TEXT(trace, 2,"setaddr4");
5852 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5853 } else if (addr->proto == QETH_PROT_IPV6) {
5854 QETH_DBF_TEXT(trace, 2, "setaddr6");
5855 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5856 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5857 } else {
5858 QETH_DBF_TEXT(trace, 2, "setaddr?");
5859 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5860 }
5861 do {
5862 if (addr->is_multicast)
5863 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
5864 else
5865 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
5866 addr->set_flags);
5867 if (rc)
5868 QETH_DBF_TEXT(trace, 2, "failed");
5869 } while ((--cnt > 0) && rc);
5870 if (rc){
5871 QETH_DBF_TEXT(trace, 2, "FAILED");
5872 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5873 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
5874 buf, rc, rc);
5875 }
5876 return rc;
5877 }
5878
5879 static int
5880 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
5881 struct qeth_ipaddr *addr)
5882 {
5883 //char buf[50];
5884 int rc;
5885
5886 if (addr->proto == QETH_PROT_IPV4) {
5887 QETH_DBF_TEXT(trace, 2,"deladdr4");
5888 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5889 } else if (addr->proto == QETH_PROT_IPV6) {
5890 QETH_DBF_TEXT(trace, 2, "deladdr6");
5891 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5892 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5893 } else {
5894 QETH_DBF_TEXT(trace, 2, "deladdr?");
5895 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5896 }
5897 if (addr->is_multicast)
5898 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
5899 else
5900 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
5901 addr->del_flags);
5902 if (rc) {
5903 QETH_DBF_TEXT(trace, 2, "failed");
5904 /* TODO: re-activate this warning as soon as we have a
5905 * clean mirco code
5906 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5907 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
5908 buf, rc);
5909 */
5910 }
5911 return rc;
5912 }
5913
5914 static int
5915 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5916 {
5917 if (card->options.layer2)
5918 return qeth_layer2_register_addr_entry(card, addr);
5919
5920 return qeth_layer3_register_addr_entry(card, addr);
5921 }
5922
5923 static int
5924 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5925 {
5926 if (card->options.layer2)
5927 return qeth_layer2_deregister_addr_entry(card, addr);
5928
5929 return qeth_layer3_deregister_addr_entry(card, addr);
5930 }
5931
5932 static u32
5933 qeth_ethtool_get_tx_csum(struct net_device *dev)
5934 {
5935 /* We may need to say that we support tx csum offload if
5936 * we do EDDP or TSO. There are discussions going on to
5937 * enforce rules in the stack and in ethtool that make
5938 * SG and TSO depend on HW_CSUM. At the moment there are
5939 * no such rules....
5940 * If we say yes here, we have to checksum outbound packets
5941 * any time. */
5942 return 0;
5943 }
5944
5945 static int
5946 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
5947 {
5948 return -EINVAL;
5949 }
5950
5951 static u32
5952 qeth_ethtool_get_rx_csum(struct net_device *dev)
5953 {
5954 struct qeth_card *card = (struct qeth_card *)dev->priv;
5955
5956 return (card->options.checksum_type == HW_CHECKSUMMING);
5957 }
5958
5959 static int
5960 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
5961 {
5962 struct qeth_card *card = (struct qeth_card *)dev->priv;
5963
5964 if ((card->state != CARD_STATE_DOWN) &&
5965 (card->state != CARD_STATE_RECOVER))
5966 return -EPERM;
5967 if (data)
5968 card->options.checksum_type = HW_CHECKSUMMING;
5969 else
5970 card->options.checksum_type = SW_CHECKSUMMING;
5971 return 0;
5972 }
5973
5974 static u32
5975 qeth_ethtool_get_sg(struct net_device *dev)
5976 {
5977 struct qeth_card *card = (struct qeth_card *)dev->priv;
5978
5979 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
5980 (dev->features & NETIF_F_SG));
5981 }
5982
5983 static int
5984 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
5985 {
5986 struct qeth_card *card = (struct qeth_card *)dev->priv;
5987
5988 if (data) {
5989 if (card->options.large_send != QETH_LARGE_SEND_NO)
5990 dev->features |= NETIF_F_SG;
5991 else {
5992 dev->features &= ~NETIF_F_SG;
5993 return -EINVAL;
5994 }
5995 } else
5996 dev->features &= ~NETIF_F_SG;
5997 return 0;
5998 }
5999
6000 static u32
6001 qeth_ethtool_get_tso(struct net_device *dev)
6002 {
6003 struct qeth_card *card = (struct qeth_card *)dev->priv;
6004
6005 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6006 (dev->features & NETIF_F_TSO));
6007 }
6008
6009 static int
6010 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6011 {
6012 struct qeth_card *card = (struct qeth_card *)dev->priv;
6013
6014 if (data) {
6015 if (card->options.large_send != QETH_LARGE_SEND_NO)
6016 dev->features |= NETIF_F_TSO;
6017 else {
6018 dev->features &= ~NETIF_F_TSO;
6019 return -EINVAL;
6020 }
6021 } else
6022 dev->features &= ~NETIF_F_TSO;
6023 return 0;
6024 }
6025
6026 static struct ethtool_ops qeth_ethtool_ops = {
6027 .get_tx_csum = qeth_ethtool_get_tx_csum,
6028 .set_tx_csum = qeth_ethtool_set_tx_csum,
6029 .get_rx_csum = qeth_ethtool_get_rx_csum,
6030 .set_rx_csum = qeth_ethtool_set_rx_csum,
6031 .get_sg = qeth_ethtool_get_sg,
6032 .set_sg = qeth_ethtool_set_sg,
6033 .get_tso = qeth_ethtool_get_tso,
6034 .set_tso = qeth_ethtool_set_tso,
6035 };
6036
6037 static int
6038 qeth_netdev_init(struct net_device *dev)
6039 {
6040 struct qeth_card *card;
6041
6042 card = (struct qeth_card *) dev->priv;
6043
6044 QETH_DBF_TEXT(trace,3,"initdev");
6045
6046 dev->tx_timeout = &qeth_tx_timeout;
6047 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6048 dev->open = qeth_open;
6049 dev->stop = qeth_stop;
6050 dev->hard_start_xmit = qeth_hard_start_xmit;
6051 dev->do_ioctl = qeth_do_ioctl;
6052 dev->get_stats = qeth_get_stats;
6053 dev->change_mtu = qeth_change_mtu;
6054 dev->neigh_setup = qeth_neigh_setup;
6055 dev->set_multicast_list = qeth_set_multicast_list;
6056 #ifdef CONFIG_QETH_VLAN
6057 dev->vlan_rx_register = qeth_vlan_rx_register;
6058 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6059 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6060 #endif
6061 dev->hard_header = card->orig_hard_header;
6062 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6063 dev->rebuild_header = NULL;
6064 dev->hard_header = NULL;
6065 if (card->options.fake_ll)
6066 dev->hard_header = qeth_fake_header;
6067 dev->header_cache_update = NULL;
6068 dev->hard_header_cache = NULL;
6069 }
6070 #ifdef CONFIG_QETH_IPV6
6071 /*IPv6 address autoconfiguration stuff*/
6072 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6073 card->dev->dev_id = card->info.unique_id & 0xffff;
6074 #endif
6075 dev->hard_header_parse = NULL;
6076 dev->set_mac_address = qeth_layer2_set_mac_address;
6077 dev->flags |= qeth_get_netdev_flags(card);
6078 if ((card->options.fake_broadcast) ||
6079 (card->info.broadcast_capable))
6080 dev->flags |= IFF_BROADCAST;
6081 dev->hard_header_len =
6082 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6083 dev->addr_len = OSA_ADDR_LEN;
6084 dev->mtu = card->info.initial_mtu;
6085
6086 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6087
6088 SET_MODULE_OWNER(dev);
6089 return 0;
6090 }
6091
6092 static void
6093 qeth_init_func_level(struct qeth_card *card)
6094 {
6095 if (card->ipato.enabled) {
6096 if (card->info.type == QETH_CARD_TYPE_IQD)
6097 card->info.func_level =
6098 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6099 else
6100 card->info.func_level =
6101 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6102 } else {
6103 if (card->info.type == QETH_CARD_TYPE_IQD)
6104 card->info.func_level =
6105 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6106 else
6107 card->info.func_level =
6108 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6109 }
6110 }
6111
6112 /**
6113 * hardsetup card, initialize MPC and QDIO stuff
6114 */
6115 static int
6116 qeth_hardsetup_card(struct qeth_card *card)
6117 {
6118 int retries = 3;
6119 int rc;
6120
6121 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6122
6123 retry:
6124 if (retries < 3){
6125 PRINT_WARN("Retrying to do IDX activates.\n");
6126 ccw_device_set_offline(CARD_DDEV(card));
6127 ccw_device_set_offline(CARD_WDEV(card));
6128 ccw_device_set_offline(CARD_RDEV(card));
6129 ccw_device_set_online(CARD_RDEV(card));
6130 ccw_device_set_online(CARD_WDEV(card));
6131 ccw_device_set_online(CARD_DDEV(card));
6132 }
6133 rc = qeth_qdio_clear_card(card,card->info.type==QETH_CARD_TYPE_OSAE);
6134 if (rc == -ERESTARTSYS) {
6135 QETH_DBF_TEXT(setup, 2, "break1");
6136 return rc;
6137 } else if (rc) {
6138 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6139 if (--retries < 0)
6140 goto out;
6141 else
6142 goto retry;
6143 }
6144 if ((rc = qeth_get_unitaddr(card))){
6145 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6146 return rc;
6147 }
6148 qeth_init_tokens(card);
6149 qeth_init_func_level(card);
6150 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6151 if (rc == -ERESTARTSYS) {
6152 QETH_DBF_TEXT(setup, 2, "break2");
6153 return rc;
6154 } else if (rc) {
6155 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6156 if (--retries < 0)
6157 goto out;
6158 else
6159 goto retry;
6160 }
6161 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6162 if (rc == -ERESTARTSYS) {
6163 QETH_DBF_TEXT(setup, 2, "break3");
6164 return rc;
6165 } else if (rc) {
6166 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6167 if (--retries < 0)
6168 goto out;
6169 else
6170 goto retry;
6171 }
6172 if ((rc = qeth_mpc_initialize(card))){
6173 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6174 goto out;
6175 }
6176 /*network device will be recovered*/
6177 if (card->dev) {
6178 card->dev->hard_header = card->orig_hard_header;
6179 return 0;
6180 }
6181 /* at first set_online allocate netdev */
6182 card->dev = qeth_get_netdevice(card->info.type,
6183 card->info.link_type);
6184 if (!card->dev){
6185 qeth_qdio_clear_card(card, card->info.type ==
6186 QETH_CARD_TYPE_OSAE);
6187 rc = -ENODEV;
6188 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6189 goto out;
6190 }
6191 card->dev->priv = card;
6192 card->orig_hard_header = card->dev->hard_header;
6193 card->dev->type = qeth_get_arphdr_type(card->info.type,
6194 card->info.link_type);
6195 card->dev->init = qeth_netdev_init;
6196 return 0;
6197 out:
6198 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6199 return rc;
6200 }
6201
6202 static int
6203 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6204 unsigned long data)
6205 {
6206 struct qeth_ipa_cmd *cmd;
6207
6208 QETH_DBF_TEXT(trace,4,"defadpcb");
6209
6210 cmd = (struct qeth_ipa_cmd *) data;
6211 if (cmd->hdr.return_code == 0){
6212 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6213 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6214 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6215 #ifdef CONFIG_QETH_IPV6
6216 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6217 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6218 #endif
6219 }
6220 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6221 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6222 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6223 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6224 }
6225 return 0;
6226 }
6227
6228 static int
6229 qeth_default_setadapterparms_cb(struct qeth_card *card,
6230 struct qeth_reply *reply,
6231 unsigned long data)
6232 {
6233 struct qeth_ipa_cmd *cmd;
6234
6235 QETH_DBF_TEXT(trace,4,"defadpcb");
6236
6237 cmd = (struct qeth_ipa_cmd *) data;
6238 if (cmd->hdr.return_code == 0)
6239 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6240 return 0;
6241 }
6242
6243 static int
6244 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6245 unsigned long data)
6246 {
6247 struct qeth_ipa_cmd *cmd;
6248
6249 QETH_DBF_TEXT(trace,3,"quyadpcb");
6250
6251 cmd = (struct qeth_ipa_cmd *) data;
6252 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6253 card->info.link_type =
6254 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6255 card->options.adp.supported_funcs =
6256 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6257 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6258 }
6259
6260 static int
6261 qeth_query_setadapterparms(struct qeth_card *card)
6262 {
6263 int rc;
6264 struct qeth_cmd_buffer *iob;
6265
6266 QETH_DBF_TEXT(trace,3,"queryadp");
6267 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6268 sizeof(struct qeth_ipacmd_setadpparms));
6269 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6270 return rc;
6271 }
6272
6273 static int
6274 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6275 struct qeth_reply *reply,
6276 unsigned long data)
6277 {
6278 struct qeth_ipa_cmd *cmd;
6279
6280 QETH_DBF_TEXT(trace,4,"chgmaccb");
6281
6282 cmd = (struct qeth_ipa_cmd *) data;
6283 memcpy(card->dev->dev_addr,
6284 &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
6285 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6286 return 0;
6287 }
6288
6289 static int
6290 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6291 {
6292 int rc;
6293 struct qeth_cmd_buffer *iob;
6294 struct qeth_ipa_cmd *cmd;
6295
6296 QETH_DBF_TEXT(trace,4,"chgmac");
6297
6298 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6299 sizeof(struct qeth_ipacmd_setadpparms));
6300 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6301 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6302 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6303 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6304 card->dev->dev_addr, OSA_ADDR_LEN);
6305 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6306 NULL);
6307 return rc;
6308 }
6309
6310 static int
6311 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6312 {
6313 int rc;
6314 struct qeth_cmd_buffer *iob;
6315 struct qeth_ipa_cmd *cmd;
6316
6317 QETH_DBF_TEXT(trace,4,"adpmode");
6318
6319 iob = qeth_get_adapter_cmd(card, command,
6320 sizeof(struct qeth_ipacmd_setadpparms));
6321 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6322 cmd->data.setadapterparms.data.mode = mode;
6323 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6324 NULL);
6325 return rc;
6326 }
6327
6328 static inline int
6329 qeth_setadapter_hstr(struct qeth_card *card)
6330 {
6331 int rc;
6332
6333 QETH_DBF_TEXT(trace,4,"adphstr");
6334
6335 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6336 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6337 card->options.broadcast_mode);
6338 if (rc)
6339 PRINT_WARN("couldn't set broadcast mode on "
6340 "device %s: x%x\n",
6341 CARD_BUS_ID(card), rc);
6342 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6343 card->options.macaddr_mode);
6344 if (rc)
6345 PRINT_WARN("couldn't set macaddr mode on "
6346 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6347 return rc;
6348 }
6349 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6350 PRINT_WARN("set adapter parameters not available "
6351 "to set broadcast mode, using ALLRINGS "
6352 "on device %s:\n", CARD_BUS_ID(card));
6353 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6354 PRINT_WARN("set adapter parameters not available "
6355 "to set macaddr mode, using NONCANONICAL "
6356 "on device %s:\n", CARD_BUS_ID(card));
6357 return 0;
6358 }
6359
6360 static int
6361 qeth_setadapter_parms(struct qeth_card *card)
6362 {
6363 int rc;
6364
6365 QETH_DBF_TEXT(setup, 2, "setadprm");
6366
6367 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6368 PRINT_WARN("set adapter parameters not supported "
6369 "on device %s.\n",
6370 CARD_BUS_ID(card));
6371 QETH_DBF_TEXT(setup, 2, " notsupp");
6372 return 0;
6373 }
6374 rc = qeth_query_setadapterparms(card);
6375 if (rc) {
6376 PRINT_WARN("couldn't set adapter parameters on device %s: "
6377 "x%x\n", CARD_BUS_ID(card), rc);
6378 return rc;
6379 }
6380 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6381 rc = qeth_setadpparms_change_macaddr(card);
6382 if (rc)
6383 PRINT_WARN("couldn't get MAC address on "
6384 "device %s: x%x\n",
6385 CARD_BUS_ID(card), rc);
6386 }
6387
6388 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6389 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6390 rc = qeth_setadapter_hstr(card);
6391
6392 return rc;
6393 }
6394
6395 static int
6396 qeth_layer2_initialize(struct qeth_card *card)
6397 {
6398 int rc = 0;
6399
6400
6401 QETH_DBF_TEXT(setup, 2, "doL2init");
6402 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6403
6404 rc = qeth_setadpparms_change_macaddr(card);
6405 if (rc) {
6406 PRINT_WARN("couldn't get MAC address on "
6407 "device %s: x%x\n",
6408 CARD_BUS_ID(card), rc);
6409 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6410 return rc;
6411 }
6412 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6413
6414 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6415 if (rc)
6416 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6417 return 0;
6418 }
6419
6420
6421 static int
6422 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6423 enum qeth_prot_versions prot)
6424 {
6425 int rc;
6426 struct qeth_cmd_buffer *iob;
6427
6428 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6429 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6430
6431 return rc;
6432 }
6433
6434 static int
6435 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6436 {
6437 int rc;
6438
6439 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6440
6441 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6442 return rc;
6443 }
6444
6445 static int
6446 qeth_send_stoplan(struct qeth_card *card)
6447 {
6448 int rc = 0;
6449
6450 /*
6451 * TODO: according to the IPA format document page 14,
6452 * TCP/IP (we!) never issue a STOPLAN
6453 * is this right ?!?
6454 */
6455 QETH_DBF_TEXT(trace, 2, "stoplan");
6456
6457 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6458 return rc;
6459 }
6460
6461 static int
6462 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6463 unsigned long data)
6464 {
6465 struct qeth_ipa_cmd *cmd;
6466
6467 QETH_DBF_TEXT(setup, 2, "qipasscb");
6468
6469 cmd = (struct qeth_ipa_cmd *) data;
6470 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6471 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6472 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6473 } else {
6474 #ifdef CONFIG_QETH_IPV6
6475 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6476 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6477 #endif
6478 }
6479 QETH_DBF_TEXT(setup, 2, "suppenbl");
6480 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6481 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6482 return 0;
6483 }
6484
6485 static int
6486 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6487 {
6488 int rc;
6489 struct qeth_cmd_buffer *iob;
6490
6491 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6492 if (card->options.layer2) {
6493 QETH_DBF_TEXT(setup, 2, "noprmly2");
6494 return -EPERM;
6495 }
6496
6497 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6498 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6499 return rc;
6500 }
6501
6502 static struct qeth_cmd_buffer *
6503 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6504 __u16 cmd_code, __u16 len,
6505 enum qeth_prot_versions prot)
6506 {
6507 struct qeth_cmd_buffer *iob;
6508 struct qeth_ipa_cmd *cmd;
6509
6510 QETH_DBF_TEXT(trace,4,"getasscm");
6511 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6512
6513 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6514 cmd->data.setassparms.hdr.assist_no = ipa_func;
6515 cmd->data.setassparms.hdr.length = 8 + len;
6516 cmd->data.setassparms.hdr.command_code = cmd_code;
6517 cmd->data.setassparms.hdr.return_code = 0;
6518 cmd->data.setassparms.hdr.seq_no = 0;
6519
6520 return iob;
6521 }
6522
6523 static int
6524 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6525 __u16 len, long data,
6526 int (*reply_cb)
6527 (struct qeth_card *,struct qeth_reply *,unsigned long),
6528 void *reply_param)
6529 {
6530 int rc;
6531 struct qeth_ipa_cmd *cmd;
6532
6533 QETH_DBF_TEXT(trace,4,"sendassp");
6534
6535 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6536 if (len <= sizeof(__u32))
6537 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6538 else if (len > sizeof(__u32))
6539 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6540
6541 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6542 return rc;
6543 }
6544
6545 #ifdef CONFIG_QETH_IPV6
6546 static int
6547 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6548 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6549
6550 {
6551 int rc;
6552 struct qeth_cmd_buffer *iob;
6553
6554 QETH_DBF_TEXT(trace,4,"simassp6");
6555 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6556 0, QETH_PROT_IPV6);
6557 rc = qeth_send_setassparms(card, iob, 0, 0,
6558 qeth_default_setassparms_cb, NULL);
6559 return rc;
6560 }
6561 #endif
6562
6563 static int
6564 qeth_send_simple_setassparms(struct qeth_card *card,
6565 enum qeth_ipa_funcs ipa_func,
6566 __u16 cmd_code, long data)
6567 {
6568 int rc;
6569 int length = 0;
6570 struct qeth_cmd_buffer *iob;
6571
6572 QETH_DBF_TEXT(trace,4,"simassp4");
6573 if (data)
6574 length = sizeof(__u32);
6575 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6576 length, QETH_PROT_IPV4);
6577 rc = qeth_send_setassparms(card, iob, length, data,
6578 qeth_default_setassparms_cb, NULL);
6579 return rc;
6580 }
6581
6582 static inline int
6583 qeth_start_ipa_arp_processing(struct qeth_card *card)
6584 {
6585 int rc;
6586
6587 QETH_DBF_TEXT(trace,3,"ipaarp");
6588
6589 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6590 PRINT_WARN("ARP processing not supported "
6591 "on %s!\n", QETH_CARD_IFNAME(card));
6592 return 0;
6593 }
6594 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6595 IPA_CMD_ASS_START, 0);
6596 if (rc) {
6597 PRINT_WARN("Could not start ARP processing "
6598 "assist on %s: 0x%x\n",
6599 QETH_CARD_IFNAME(card), rc);
6600 }
6601 return rc;
6602 }
6603
6604 static int
6605 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6606 {
6607 int rc;
6608
6609 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6610
6611 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6612 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6613 QETH_CARD_IFNAME(card));
6614 return -EOPNOTSUPP;
6615 }
6616
6617 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6618 IPA_CMD_ASS_START, 0);
6619 if (rc) {
6620 PRINT_WARN("Could not start Hardware IP fragmentation "
6621 "assist on %s: 0x%x\n",
6622 QETH_CARD_IFNAME(card), rc);
6623 } else
6624 PRINT_INFO("Hardware IP fragmentation enabled \n");
6625 return rc;
6626 }
6627
6628 static int
6629 qeth_start_ipa_source_mac(struct qeth_card *card)
6630 {
6631 int rc;
6632
6633 QETH_DBF_TEXT(trace,3,"stsrcmac");
6634
6635 if (!card->options.fake_ll)
6636 return -EOPNOTSUPP;
6637
6638 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6639 PRINT_INFO("Inbound source address not "
6640 "supported on %s\n", QETH_CARD_IFNAME(card));
6641 return -EOPNOTSUPP;
6642 }
6643
6644 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6645 IPA_CMD_ASS_START, 0);
6646 if (rc)
6647 PRINT_WARN("Could not start inbound source "
6648 "assist on %s: 0x%x\n",
6649 QETH_CARD_IFNAME(card), rc);
6650 return rc;
6651 }
6652
6653 static int
6654 qeth_start_ipa_vlan(struct qeth_card *card)
6655 {
6656 int rc = 0;
6657
6658 QETH_DBF_TEXT(trace,3,"strtvlan");
6659
6660 #ifdef CONFIG_QETH_VLAN
6661 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6662 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6663 return -EOPNOTSUPP;
6664 }
6665
6666 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6667 IPA_CMD_ASS_START,0);
6668 if (rc) {
6669 PRINT_WARN("Could not start vlan "
6670 "assist on %s: 0x%x\n",
6671 QETH_CARD_IFNAME(card), rc);
6672 } else {
6673 PRINT_INFO("VLAN enabled \n");
6674 card->dev->features |=
6675 NETIF_F_HW_VLAN_FILTER |
6676 NETIF_F_HW_VLAN_TX |
6677 NETIF_F_HW_VLAN_RX;
6678 }
6679 #endif /* QETH_VLAN */
6680 return rc;
6681 }
6682
6683 static int
6684 qeth_start_ipa_multicast(struct qeth_card *card)
6685 {
6686 int rc;
6687
6688 QETH_DBF_TEXT(trace,3,"stmcast");
6689
6690 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
6691 PRINT_WARN("Multicast not supported on %s\n",
6692 QETH_CARD_IFNAME(card));
6693 return -EOPNOTSUPP;
6694 }
6695
6696 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
6697 IPA_CMD_ASS_START,0);
6698 if (rc) {
6699 PRINT_WARN("Could not start multicast "
6700 "assist on %s: rc=%i\n",
6701 QETH_CARD_IFNAME(card), rc);
6702 } else {
6703 PRINT_INFO("Multicast enabled\n");
6704 card->dev->flags |= IFF_MULTICAST;
6705 }
6706 return rc;
6707 }
6708
6709 #ifdef CONFIG_QETH_IPV6
6710 static int
6711 qeth_softsetup_ipv6(struct qeth_card *card)
6712 {
6713 int rc;
6714
6715 QETH_DBF_TEXT(trace,3,"softipv6");
6716
6717 netif_stop_queue(card->dev);
6718 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
6719 if (rc) {
6720 PRINT_ERR("IPv6 startlan failed on %s\n",
6721 QETH_CARD_IFNAME(card));
6722 return rc;
6723 }
6724 netif_wake_queue(card->dev);
6725 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
6726 if (rc) {
6727 PRINT_ERR("IPv6 query ipassist failed on %s\n",
6728 QETH_CARD_IFNAME(card));
6729 return rc;
6730 }
6731 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
6732 IPA_CMD_ASS_START, 3);
6733 if (rc) {
6734 PRINT_WARN("IPv6 start assist (version 4) failed "
6735 "on %s: 0x%x\n",
6736 QETH_CARD_IFNAME(card), rc);
6737 return rc;
6738 }
6739 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
6740 IPA_CMD_ASS_START);
6741 if (rc) {
6742 PRINT_WARN("IPV6 start assist (version 6) failed "
6743 "on %s: 0x%x\n",
6744 QETH_CARD_IFNAME(card), rc);
6745 return rc;
6746 }
6747 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
6748 IPA_CMD_ASS_START);
6749 if (rc) {
6750 PRINT_WARN("Could not enable passthrough "
6751 "on %s: 0x%x\n",
6752 QETH_CARD_IFNAME(card), rc);
6753 return rc;
6754 }
6755 PRINT_INFO("IPV6 enabled \n");
6756 return 0;
6757 }
6758
6759 #endif
6760
6761 static int
6762 qeth_start_ipa_ipv6(struct qeth_card *card)
6763 {
6764 int rc = 0;
6765 #ifdef CONFIG_QETH_IPV6
6766 QETH_DBF_TEXT(trace,3,"strtipv6");
6767
6768 if (!qeth_is_supported(card, IPA_IPV6)) {
6769 PRINT_WARN("IPv6 not supported on %s\n",
6770 QETH_CARD_IFNAME(card));
6771 return 0;
6772 }
6773 rc = qeth_softsetup_ipv6(card);
6774 #endif
6775 return rc ;
6776 }
6777
6778 static int
6779 qeth_start_ipa_broadcast(struct qeth_card *card)
6780 {
6781 int rc;
6782
6783 QETH_DBF_TEXT(trace,3,"stbrdcst");
6784 card->info.broadcast_capable = 0;
6785 if (!qeth_is_supported(card, IPA_FILTERING)) {
6786 PRINT_WARN("Broadcast not supported on %s\n",
6787 QETH_CARD_IFNAME(card));
6788 rc = -EOPNOTSUPP;
6789 goto out;
6790 }
6791 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6792 IPA_CMD_ASS_START, 0);
6793 if (rc) {
6794 PRINT_WARN("Could not enable broadcasting filtering "
6795 "on %s: 0x%x\n",
6796 QETH_CARD_IFNAME(card), rc);
6797 goto out;
6798 }
6799
6800 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6801 IPA_CMD_ASS_CONFIGURE, 1);
6802 if (rc) {
6803 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
6804 QETH_CARD_IFNAME(card), rc);
6805 goto out;
6806 }
6807 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
6808 PRINT_INFO("Broadcast enabled \n");
6809 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6810 IPA_CMD_ASS_ENABLE, 1);
6811 if (rc) {
6812 PRINT_WARN("Could not set up broadcast echo filtering on "
6813 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
6814 goto out;
6815 }
6816 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
6817 out:
6818 if (card->info.broadcast_capable)
6819 card->dev->flags |= IFF_BROADCAST;
6820 else
6821 card->dev->flags &= ~IFF_BROADCAST;
6822 return rc;
6823 }
6824
6825 static int
6826 qeth_send_checksum_command(struct qeth_card *card)
6827 {
6828 int rc;
6829
6830 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
6831 IPA_CMD_ASS_START, 0);
6832 if (rc) {
6833 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
6834 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
6835 QETH_CARD_IFNAME(card), rc);
6836 return rc;
6837 }
6838 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
6839 IPA_CMD_ASS_ENABLE,
6840 card->info.csum_mask);
6841 if (rc) {
6842 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
6843 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
6844 QETH_CARD_IFNAME(card), rc);
6845 return rc;
6846 }
6847 return 0;
6848 }
6849
6850 static int
6851 qeth_start_ipa_checksum(struct qeth_card *card)
6852 {
6853 int rc = 0;
6854
6855 QETH_DBF_TEXT(trace,3,"strtcsum");
6856
6857 if (card->options.checksum_type == NO_CHECKSUMMING) {
6858 PRINT_WARN("Using no checksumming on %s.\n",
6859 QETH_CARD_IFNAME(card));
6860 return 0;
6861 }
6862 if (card->options.checksum_type == SW_CHECKSUMMING) {
6863 PRINT_WARN("Using SW checksumming on %s.\n",
6864 QETH_CARD_IFNAME(card));
6865 return 0;
6866 }
6867 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
6868 PRINT_WARN("Inbound HW Checksumming not "
6869 "supported on %s,\ncontinuing "
6870 "using Inbound SW Checksumming\n",
6871 QETH_CARD_IFNAME(card));
6872 card->options.checksum_type = SW_CHECKSUMMING;
6873 return 0;
6874 }
6875 rc = qeth_send_checksum_command(card);
6876 if (!rc) {
6877 PRINT_INFO("HW Checksumming (inbound) enabled \n");
6878 }
6879 return rc;
6880 }
6881
6882 static int
6883 qeth_start_ipa_tso(struct qeth_card *card)
6884 {
6885 int rc;
6886
6887 QETH_DBF_TEXT(trace,3,"sttso");
6888
6889 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
6890 PRINT_WARN("Outbound TSO not supported on %s\n",
6891 QETH_CARD_IFNAME(card));
6892 rc = -EOPNOTSUPP;
6893 } else {
6894 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
6895 IPA_CMD_ASS_START,0);
6896 if (rc)
6897 PRINT_WARN("Could not start outbound TSO "
6898 "assist on %s: rc=%i\n",
6899 QETH_CARD_IFNAME(card), rc);
6900 else
6901 PRINT_INFO("Outbound TSO enabled\n");
6902 }
6903 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
6904 card->options.large_send = QETH_LARGE_SEND_NO;
6905 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
6906 }
6907 return rc;
6908 }
6909
6910 static int
6911 qeth_start_ipassists(struct qeth_card *card)
6912 {
6913 QETH_DBF_TEXT(trace,3,"strtipas");
6914 qeth_start_ipa_arp_processing(card); /* go on*/
6915 qeth_start_ipa_ip_fragmentation(card); /* go on*/
6916 qeth_start_ipa_source_mac(card); /* go on*/
6917 qeth_start_ipa_vlan(card); /* go on*/
6918 qeth_start_ipa_multicast(card); /* go on*/
6919 qeth_start_ipa_ipv6(card); /* go on*/
6920 qeth_start_ipa_broadcast(card); /* go on*/
6921 qeth_start_ipa_checksum(card); /* go on*/
6922 qeth_start_ipa_tso(card); /* go on*/
6923 return 0;
6924 }
6925
6926 static int
6927 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
6928 enum qeth_prot_versions prot)
6929 {
6930 int rc;
6931 struct qeth_ipa_cmd *cmd;
6932 struct qeth_cmd_buffer *iob;
6933
6934 QETH_DBF_TEXT(trace,4,"setroutg");
6935 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
6936 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6937 cmd->data.setrtg.type = (type);
6938 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6939
6940 return rc;
6941
6942 }
6943
6944 static void
6945 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
6946 enum qeth_prot_versions prot)
6947 {
6948 if (card->info.type == QETH_CARD_TYPE_IQD) {
6949 switch (*type) {
6950 case NO_ROUTER:
6951 case PRIMARY_CONNECTOR:
6952 case SECONDARY_CONNECTOR:
6953 case MULTICAST_ROUTER:
6954 return;
6955 default:
6956 goto out_inval;
6957 }
6958 } else {
6959 switch (*type) {
6960 case NO_ROUTER:
6961 case PRIMARY_ROUTER:
6962 case SECONDARY_ROUTER:
6963 return;
6964 case MULTICAST_ROUTER:
6965 if (qeth_is_ipafunc_supported(card, prot,
6966 IPA_OSA_MC_ROUTER))
6967 return;
6968 default:
6969 goto out_inval;
6970 }
6971 }
6972 out_inval:
6973 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
6974 "Router status set to 'no router'.\n",
6975 ((*type == PRIMARY_ROUTER)? "primary router" :
6976 (*type == SECONDARY_ROUTER)? "secondary router" :
6977 (*type == PRIMARY_CONNECTOR)? "primary connector" :
6978 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
6979 (*type == MULTICAST_ROUTER)? "multicast router" :
6980 "unknown"),
6981 card->dev->name);
6982 *type = NO_ROUTER;
6983 }
6984
6985 int
6986 qeth_setrouting_v4(struct qeth_card *card)
6987 {
6988 int rc;
6989
6990 QETH_DBF_TEXT(trace,3,"setrtg4");
6991
6992 qeth_correct_routing_type(card, &card->options.route4.type,
6993 QETH_PROT_IPV4);
6994
6995 rc = qeth_send_setrouting(card, card->options.route4.type,
6996 QETH_PROT_IPV4);
6997 if (rc) {
6998 card->options.route4.type = NO_ROUTER;
6999 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7000 "Type set to 'no router'.\n",
7001 rc, QETH_CARD_IFNAME(card));
7002 }
7003 return rc;
7004 }
7005
7006 int
7007 qeth_setrouting_v6(struct qeth_card *card)
7008 {
7009 int rc = 0;
7010
7011 QETH_DBF_TEXT(trace,3,"setrtg6");
7012 #ifdef CONFIG_QETH_IPV6
7013
7014 qeth_correct_routing_type(card, &card->options.route6.type,
7015 QETH_PROT_IPV6);
7016
7017 if ((card->options.route6.type == NO_ROUTER) ||
7018 ((card->info.type == QETH_CARD_TYPE_OSAE) &&
7019 (card->options.route6.type == MULTICAST_ROUTER) &&
7020 !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
7021 return 0;
7022 rc = qeth_send_setrouting(card, card->options.route6.type,
7023 QETH_PROT_IPV6);
7024 if (rc) {
7025 card->options.route6.type = NO_ROUTER;
7026 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7027 "Type set to 'no router'.\n",
7028 rc, QETH_CARD_IFNAME(card));
7029 }
7030 #endif
7031 return rc;
7032 }
7033
7034 int
7035 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7036 {
7037 int rc = 0;
7038
7039 if (card->dev == NULL) {
7040 card->options.large_send = type;
7041 return 0;
7042 }
7043 netif_stop_queue(card->dev);
7044 card->options.large_send = type;
7045 switch (card->options.large_send) {
7046 case QETH_LARGE_SEND_EDDP:
7047 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7048 break;
7049 case QETH_LARGE_SEND_TSO:
7050 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7051 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7052 } else {
7053 PRINT_WARN("TSO not supported on %s. "
7054 "large_send set to 'no'.\n",
7055 card->dev->name);
7056 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7057 card->options.large_send = QETH_LARGE_SEND_NO;
7058 rc = -EOPNOTSUPP;
7059 }
7060 break;
7061 default: /* includes QETH_LARGE_SEND_NO */
7062 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7063 break;
7064 }
7065 netif_wake_queue(card->dev);
7066 return rc;
7067 }
7068
7069 /*
7070 * softsetup card: init IPA stuff
7071 */
7072 static int
7073 qeth_softsetup_card(struct qeth_card *card)
7074 {
7075 int rc;
7076
7077 QETH_DBF_TEXT(setup, 2, "softsetp");
7078
7079 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7080 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7081 if (rc == 0xe080){
7082 PRINT_WARN("LAN on card %s if offline! "
7083 "Continuing softsetup.\n",
7084 CARD_BUS_ID(card));
7085 card->lan_online = 0;
7086 } else
7087 return rc;
7088 } else
7089 card->lan_online = 1;
7090 if (card->options.layer2) {
7091 card->dev->features |=
7092 NETIF_F_HW_VLAN_FILTER |
7093 NETIF_F_HW_VLAN_TX |
7094 NETIF_F_HW_VLAN_RX;
7095 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7096 card->info.broadcast_capable=1;
7097 if ((rc = qeth_layer2_initialize(card))) {
7098 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7099 return rc;
7100 }
7101 #ifdef CONFIG_QETH_VLAN
7102 qeth_layer2_process_vlans(card, 0);
7103 #endif
7104 goto out;
7105 }
7106 if ((card->options.large_send == QETH_LARGE_SEND_EDDP) ||
7107 (card->options.large_send == QETH_LARGE_SEND_TSO))
7108 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7109 else
7110 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7111
7112 if ((rc = qeth_setadapter_parms(card)))
7113 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7114 if ((rc = qeth_start_ipassists(card)))
7115 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7116 if ((rc = qeth_setrouting_v4(card)))
7117 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7118 if ((rc = qeth_setrouting_v6(card)))
7119 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7120 out:
7121 netif_stop_queue(card->dev);
7122 return 0;
7123 }
7124
7125 #ifdef CONFIG_QETH_IPV6
7126 static int
7127 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7128 unsigned long data)
7129 {
7130 struct qeth_ipa_cmd *cmd;
7131
7132 cmd = (struct qeth_ipa_cmd *) data;
7133 if (cmd->hdr.return_code == 0)
7134 card->info.unique_id = *((__u16 *)
7135 &cmd->data.create_destroy_addr.unique_id[6]);
7136 else {
7137 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7138 UNIQUE_ID_NOT_BY_CARD;
7139 PRINT_WARN("couldn't get a unique id from the card on device "
7140 "%s (result=x%x), using default id. ipv6 "
7141 "autoconfig on other lpars may lead to duplicate "
7142 "ip addresses. please use manually "
7143 "configured ones.\n",
7144 CARD_BUS_ID(card), cmd->hdr.return_code);
7145 }
7146 return 0;
7147 }
7148 #endif
7149
7150 static int
7151 qeth_put_unique_id(struct qeth_card *card)
7152 {
7153
7154 int rc = 0;
7155 #ifdef CONFIG_QETH_IPV6
7156 struct qeth_cmd_buffer *iob;
7157 struct qeth_ipa_cmd *cmd;
7158
7159 QETH_DBF_TEXT(trace,2,"puniqeid");
7160
7161 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7162 UNIQUE_ID_NOT_BY_CARD)
7163 return -1;
7164 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7165 QETH_PROT_IPV6);
7166 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7167 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7168 card->info.unique_id;
7169 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7170 card->dev->dev_addr, OSA_ADDR_LEN);
7171 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7172 #else
7173 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7174 UNIQUE_ID_NOT_BY_CARD;
7175 #endif
7176 return rc;
7177 }
7178
7179 /**
7180 * Clear IP List
7181 */
7182 static void
7183 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7184 {
7185 struct qeth_ipaddr *addr, *tmp;
7186 unsigned long flags;
7187
7188 QETH_DBF_TEXT(trace,4,"clearip");
7189 spin_lock_irqsave(&card->ip_lock, flags);
7190 /* clear todo list */
7191 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7192 list_del(&addr->entry);
7193 kfree(addr);
7194 }
7195
7196 while (!list_empty(&card->ip_list)) {
7197 addr = list_entry(card->ip_list.next,
7198 struct qeth_ipaddr, entry);
7199 list_del_init(&addr->entry);
7200 if (clean) {
7201 spin_unlock_irqrestore(&card->ip_lock, flags);
7202 qeth_deregister_addr_entry(card, addr);
7203 spin_lock_irqsave(&card->ip_lock, flags);
7204 }
7205 if (!recover || addr->is_multicast) {
7206 kfree(addr);
7207 continue;
7208 }
7209 list_add_tail(&addr->entry, card->ip_tbd_list);
7210 }
7211 spin_unlock_irqrestore(&card->ip_lock, flags);
7212 }
7213
7214 static void
7215 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7216 int clear_start_mask)
7217 {
7218 unsigned long flags;
7219
7220 spin_lock_irqsave(&card->thread_mask_lock, flags);
7221 card->thread_allowed_mask = threads;
7222 if (clear_start_mask)
7223 card->thread_start_mask &= threads;
7224 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7225 wake_up(&card->wait_q);
7226 }
7227
7228 static inline int
7229 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7230 {
7231 unsigned long flags;
7232 int rc = 0;
7233
7234 spin_lock_irqsave(&card->thread_mask_lock, flags);
7235 rc = (card->thread_running_mask & threads);
7236 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7237 return rc;
7238 }
7239
7240 static int
7241 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7242 {
7243 return wait_event_interruptible(card->wait_q,
7244 qeth_threads_running(card, threads) == 0);
7245 }
7246
7247 static int
7248 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7249 {
7250 int rc = 0;
7251
7252 QETH_DBF_TEXT(setup ,2,"stopcard");
7253 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7254
7255 qeth_set_allowed_threads(card, 0, 1);
7256 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7257 return -ERESTARTSYS;
7258 if (card->read.state == CH_STATE_UP &&
7259 card->write.state == CH_STATE_UP &&
7260 (card->state == CARD_STATE_UP)) {
7261 if(recovery_mode) {
7262 qeth_stop(card->dev);
7263 } else {
7264 rtnl_lock();
7265 dev_close(card->dev);
7266 rtnl_unlock();
7267 }
7268 if (!card->use_hard_stop) {
7269 __u8 *mac = &card->dev->dev_addr[0];
7270 rc = qeth_layer2_send_delmac(card, mac);
7271 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7272 if ((rc = qeth_send_stoplan(card)))
7273 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7274 }
7275 card->state = CARD_STATE_SOFTSETUP;
7276 }
7277 if (card->state == CARD_STATE_SOFTSETUP) {
7278 #ifdef CONFIG_QETH_VLAN
7279 if (card->options.layer2)
7280 qeth_layer2_process_vlans(card, 1);
7281 #endif
7282 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7283 qeth_clear_ipacmd_list(card);
7284 card->state = CARD_STATE_HARDSETUP;
7285 }
7286 if (card->state == CARD_STATE_HARDSETUP) {
7287 if ((!card->use_hard_stop) &&
7288 (!card->options.layer2))
7289 if ((rc = qeth_put_unique_id(card)))
7290 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7291 qeth_qdio_clear_card(card, 0);
7292 qeth_clear_qdio_buffers(card);
7293 qeth_clear_working_pool_list(card);
7294 card->state = CARD_STATE_DOWN;
7295 }
7296 if (card->state == CARD_STATE_DOWN) {
7297 qeth_clear_cmd_buffers(&card->read);
7298 qeth_clear_cmd_buffers(&card->write);
7299 }
7300 card->use_hard_stop = 0;
7301 return rc;
7302 }
7303
7304
7305 static int
7306 qeth_get_unique_id(struct qeth_card *card)
7307 {
7308 int rc = 0;
7309 #ifdef CONFIG_QETH_IPV6
7310 struct qeth_cmd_buffer *iob;
7311 struct qeth_ipa_cmd *cmd;
7312
7313 QETH_DBF_TEXT(setup, 2, "guniqeid");
7314
7315 if (!qeth_is_supported(card,IPA_IPV6)) {
7316 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7317 UNIQUE_ID_NOT_BY_CARD;
7318 return 0;
7319 }
7320
7321 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7322 QETH_PROT_IPV6);
7323 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7324 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7325 card->info.unique_id;
7326
7327 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7328 #else
7329 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7330 UNIQUE_ID_NOT_BY_CARD;
7331 #endif
7332 return rc;
7333 }
7334 static void
7335 qeth_print_status_with_portname(struct qeth_card *card)
7336 {
7337 char dbf_text[15];
7338 int i;
7339
7340 sprintf(dbf_text, "%s", card->info.portname + 1);
7341 for (i = 0; i < 8; i++)
7342 dbf_text[i] =
7343 (char) _ebcasc[(__u8) dbf_text[i]];
7344 dbf_text[8] = 0;
7345 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7346 "with link type %s (portname: %s)\n",
7347 CARD_RDEV_ID(card),
7348 CARD_WDEV_ID(card),
7349 CARD_DDEV_ID(card),
7350 qeth_get_cardname(card),
7351 (card->info.mcl_level[0]) ? " (level: " : "",
7352 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7353 (card->info.mcl_level[0]) ? ")" : "",
7354 qeth_get_cardname_short(card),
7355 dbf_text);
7356
7357 }
7358
7359 static void
7360 qeth_print_status_no_portname(struct qeth_card *card)
7361 {
7362 if (card->info.portname[0])
7363 printk("qeth: Device %s/%s/%s is a%s "
7364 "card%s%s%s\nwith link type %s "
7365 "(no portname needed by interface).\n",
7366 CARD_RDEV_ID(card),
7367 CARD_WDEV_ID(card),
7368 CARD_DDEV_ID(card),
7369 qeth_get_cardname(card),
7370 (card->info.mcl_level[0]) ? " (level: " : "",
7371 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7372 (card->info.mcl_level[0]) ? ")" : "",
7373 qeth_get_cardname_short(card));
7374 else
7375 printk("qeth: Device %s/%s/%s is a%s "
7376 "card%s%s%s\nwith link type %s.\n",
7377 CARD_RDEV_ID(card),
7378 CARD_WDEV_ID(card),
7379 CARD_DDEV_ID(card),
7380 qeth_get_cardname(card),
7381 (card->info.mcl_level[0]) ? " (level: " : "",
7382 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7383 (card->info.mcl_level[0]) ? ")" : "",
7384 qeth_get_cardname_short(card));
7385 }
7386
7387 static void
7388 qeth_print_status_message(struct qeth_card *card)
7389 {
7390 switch (card->info.type) {
7391 case QETH_CARD_TYPE_OSAE:
7392 /* VM will use a non-zero first character
7393 * to indicate a HiperSockets like reporting
7394 * of the level OSA sets the first character to zero
7395 * */
7396 if (!card->info.mcl_level[0]) {
7397 sprintf(card->info.mcl_level,"%02x%02x",
7398 card->info.mcl_level[2],
7399 card->info.mcl_level[3]);
7400
7401 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7402 break;
7403 }
7404 /* fallthrough */
7405 case QETH_CARD_TYPE_IQD:
7406 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7407 card->info.mcl_level[0]];
7408 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7409 card->info.mcl_level[1]];
7410 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7411 card->info.mcl_level[2]];
7412 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7413 card->info.mcl_level[3]];
7414 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7415 break;
7416 default:
7417 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7418 }
7419 if (card->info.portname_required)
7420 qeth_print_status_with_portname(card);
7421 else
7422 qeth_print_status_no_portname(card);
7423 }
7424
7425 static int
7426 qeth_register_netdev(struct qeth_card *card)
7427 {
7428 QETH_DBF_TEXT(setup, 3, "regnetd");
7429 if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7430 qeth_netdev_init(card->dev);
7431 return 0;
7432 }
7433 /* sysfs magic */
7434 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7435 return register_netdev(card->dev);
7436 }
7437
7438 static void
7439 qeth_start_again(struct qeth_card *card, int recovery_mode)
7440 {
7441 QETH_DBF_TEXT(setup ,2, "startag");
7442
7443 if(recovery_mode) {
7444 qeth_open(card->dev);
7445 } else {
7446 rtnl_lock();
7447 dev_open(card->dev);
7448 rtnl_unlock();
7449 }
7450 /* this also sets saved unicast addresses */
7451 qeth_set_multicast_list(card->dev);
7452 }
7453
7454
7455 /* Layer 2 specific stuff */
7456 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7457 if (card->options.option == value) { \
7458 PRINT_ERR("%s not supported with layer 2 " \
7459 "functionality, ignoring option on read" \
7460 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7461 card->options.option = reset_value; \
7462 }
7463 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7464 if (card->options.option != value) { \
7465 PRINT_ERR("%s not supported with layer 2 " \
7466 "functionality, ignoring option on read" \
7467 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7468 card->options.option = reset_value; \
7469 }
7470
7471
7472 static void qeth_make_parameters_consistent(struct qeth_card *card)
7473 {
7474
7475 if (card->options.layer2) {
7476 if (card->info.type == QETH_CARD_TYPE_IQD) {
7477 PRINT_ERR("Device %s does not support " \
7478 "layer 2 functionality. " \
7479 "Ignoring layer2 option.\n",CARD_BUS_ID(card));
7480 }
7481 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7482 "Routing options are");
7483 #ifdef CONFIG_QETH_IPV6
7484 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7485 "Routing options are");
7486 #endif
7487 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7488 QETH_CHECKSUM_DEFAULT,
7489 "Checksumming options are");
7490 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7491 QETH_TR_BROADCAST_ALLRINGS,
7492 "Broadcast mode options are");
7493 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7494 QETH_TR_MACADDR_NONCANONICAL,
7495 "Canonical MAC addr options are");
7496 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7497 "Broadcast faking options are");
7498 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7499 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7500 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7501 }
7502 }
7503
7504
7505 static int
7506 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7507 {
7508 struct qeth_card *card = gdev->dev.driver_data;
7509 int rc = 0;
7510 enum qeth_card_states recover_flag;
7511
7512 BUG_ON(!card);
7513 QETH_DBF_TEXT(setup ,2, "setonlin");
7514 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7515
7516 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7517 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7518 PRINT_WARN("set_online of card %s interrupted by user!\n",
7519 CARD_BUS_ID(card));
7520 return -ERESTARTSYS;
7521 }
7522
7523 recover_flag = card->state;
7524 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7525 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7526 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7527 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7528 return -EIO;
7529 }
7530
7531 if (card->options.layer2)
7532 qeth_make_parameters_consistent(card);
7533
7534 if ((rc = qeth_hardsetup_card(card))){
7535 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7536 goto out_remove;
7537 }
7538 card->state = CARD_STATE_HARDSETUP;
7539
7540 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7541 rc = qeth_get_unique_id(card);
7542
7543 if (rc && card->options.layer2 == 0) {
7544 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7545 goto out_remove;
7546 }
7547 qeth_print_status_message(card);
7548 if ((rc = qeth_register_netdev(card))){
7549 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7550 goto out_remove;
7551 }
7552 if ((rc = qeth_softsetup_card(card))){
7553 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7554 goto out_remove;
7555 }
7556 card->state = CARD_STATE_SOFTSETUP;
7557
7558 if ((rc = qeth_init_qdio_queues(card))){
7559 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7560 goto out_remove;
7561 }
7562 /*maybe it was set offline without ifconfig down
7563 * we can also use this state for recovery purposes*/
7564 qeth_set_allowed_threads(card, 0xffffffff, 0);
7565 if (recover_flag == CARD_STATE_RECOVER)
7566 qeth_start_again(card, recovery_mode);
7567 qeth_notify_processes();
7568 return 0;
7569 out_remove:
7570 card->use_hard_stop = 1;
7571 qeth_stop_card(card, 0);
7572 ccw_device_set_offline(CARD_DDEV(card));
7573 ccw_device_set_offline(CARD_WDEV(card));
7574 ccw_device_set_offline(CARD_RDEV(card));
7575 if (recover_flag == CARD_STATE_RECOVER)
7576 card->state = CARD_STATE_RECOVER;
7577 else
7578 card->state = CARD_STATE_DOWN;
7579 return -ENODEV;
7580 }
7581
7582 static int
7583 qeth_set_online(struct ccwgroup_device *gdev)
7584 {
7585 return __qeth_set_online(gdev, 0);
7586 }
7587
7588 static struct ccw_device_id qeth_ids[] = {
7589 {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7590 {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7591 {},
7592 };
7593 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7594
7595 struct device *qeth_root_dev = NULL;
7596
7597 struct ccwgroup_driver qeth_ccwgroup_driver = {
7598 .owner = THIS_MODULE,
7599 .name = "qeth",
7600 .driver_id = 0xD8C5E3C8,
7601 .probe = qeth_probe_device,
7602 .remove = qeth_remove_device,
7603 .set_online = qeth_set_online,
7604 .set_offline = qeth_set_offline,
7605 };
7606
7607 struct ccw_driver qeth_ccw_driver = {
7608 .name = "qeth",
7609 .ids = qeth_ids,
7610 .probe = ccwgroup_probe_ccwdev,
7611 .remove = ccwgroup_remove_ccwdev,
7612 };
7613
7614
7615 static void
7616 qeth_unregister_dbf_views(void)
7617 {
7618 if (qeth_dbf_setup)
7619 debug_unregister(qeth_dbf_setup);
7620 if (qeth_dbf_qerr)
7621 debug_unregister(qeth_dbf_qerr);
7622 if (qeth_dbf_sense)
7623 debug_unregister(qeth_dbf_sense);
7624 if (qeth_dbf_misc)
7625 debug_unregister(qeth_dbf_misc);
7626 if (qeth_dbf_data)
7627 debug_unregister(qeth_dbf_data);
7628 if (qeth_dbf_control)
7629 debug_unregister(qeth_dbf_control);
7630 if (qeth_dbf_trace)
7631 debug_unregister(qeth_dbf_trace);
7632 }
7633 static int
7634 qeth_register_dbf_views(void)
7635 {
7636 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7637 QETH_DBF_SETUP_PAGES,
7638 QETH_DBF_SETUP_NR_AREAS,
7639 QETH_DBF_SETUP_LEN);
7640 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7641 QETH_DBF_MISC_PAGES,
7642 QETH_DBF_MISC_NR_AREAS,
7643 QETH_DBF_MISC_LEN);
7644 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7645 QETH_DBF_DATA_PAGES,
7646 QETH_DBF_DATA_NR_AREAS,
7647 QETH_DBF_DATA_LEN);
7648 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7649 QETH_DBF_CONTROL_PAGES,
7650 QETH_DBF_CONTROL_NR_AREAS,
7651 QETH_DBF_CONTROL_LEN);
7652 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7653 QETH_DBF_SENSE_PAGES,
7654 QETH_DBF_SENSE_NR_AREAS,
7655 QETH_DBF_SENSE_LEN);
7656 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7657 QETH_DBF_QERR_PAGES,
7658 QETH_DBF_QERR_NR_AREAS,
7659 QETH_DBF_QERR_LEN);
7660 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7661 QETH_DBF_TRACE_PAGES,
7662 QETH_DBF_TRACE_NR_AREAS,
7663 QETH_DBF_TRACE_LEN);
7664
7665 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
7666 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
7667 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
7668 (qeth_dbf_trace == NULL)) {
7669 qeth_unregister_dbf_views();
7670 return -ENOMEM;
7671 }
7672 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7673 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7674
7675 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7676 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7677
7678 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7679 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7680
7681 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7682 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7683
7684 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
7685 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
7686
7687 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
7688 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
7689
7690 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
7691 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
7692
7693 return 0;
7694 }
7695
7696 #ifdef CONFIG_QETH_IPV6
7697 extern struct neigh_table arp_tbl;
7698 static struct neigh_ops *arp_direct_ops;
7699 static int (*qeth_old_arp_constructor) (struct neighbour *);
7700
7701 static struct neigh_ops arp_direct_ops_template = {
7702 .family = AF_INET,
7703 .destructor = NULL,
7704 .solicit = NULL,
7705 .error_report = NULL,
7706 .output = dev_queue_xmit,
7707 .connected_output = dev_queue_xmit,
7708 .hh_output = dev_queue_xmit,
7709 .queue_xmit = dev_queue_xmit
7710 };
7711
7712 static int
7713 qeth_arp_constructor(struct neighbour *neigh)
7714 {
7715 struct net_device *dev = neigh->dev;
7716 struct in_device *in_dev;
7717 struct neigh_parms *parms;
7718 struct qeth_card *card;
7719
7720 card = qeth_get_card_from_dev(dev);
7721 if (card == NULL)
7722 goto out;
7723 if((card->options.layer2) ||
7724 (card->dev->hard_header == qeth_fake_header))
7725 goto out;
7726
7727 rcu_read_lock();
7728 in_dev = rcu_dereference(__in_dev_get(dev));
7729 if (in_dev == NULL) {
7730 rcu_read_unlock();
7731 return -EINVAL;
7732 }
7733
7734 parms = in_dev->arp_parms;
7735 __neigh_parms_put(neigh->parms);
7736 neigh->parms = neigh_parms_clone(parms);
7737 rcu_read_unlock();
7738
7739 neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
7740 neigh->nud_state = NUD_NOARP;
7741 neigh->ops = arp_direct_ops;
7742 neigh->output = neigh->ops->queue_xmit;
7743 return 0;
7744 out:
7745 return qeth_old_arp_constructor(neigh);
7746 }
7747 #endif /*CONFIG_QETH_IPV6*/
7748
7749 /*
7750 * IP address takeover related functions
7751 */
7752 static void
7753 qeth_clear_ipato_list(struct qeth_card *card)
7754 {
7755 struct qeth_ipato_entry *ipatoe, *tmp;
7756 unsigned long flags;
7757
7758 spin_lock_irqsave(&card->ip_lock, flags);
7759 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
7760 list_del(&ipatoe->entry);
7761 kfree(ipatoe);
7762 }
7763 spin_unlock_irqrestore(&card->ip_lock, flags);
7764 }
7765
7766 int
7767 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
7768 {
7769 struct qeth_ipato_entry *ipatoe;
7770 unsigned long flags;
7771 int rc = 0;
7772
7773 QETH_DBF_TEXT(trace, 2, "addipato");
7774 spin_lock_irqsave(&card->ip_lock, flags);
7775 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
7776 if (ipatoe->proto != new->proto)
7777 continue;
7778 if (!memcmp(ipatoe->addr, new->addr,
7779 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
7780 (ipatoe->mask_bits == new->mask_bits)){
7781 PRINT_WARN("ipato entry already exists!\n");
7782 rc = -EEXIST;
7783 break;
7784 }
7785 }
7786 if (!rc) {
7787 list_add_tail(&new->entry, &card->ipato.entries);
7788 }
7789 spin_unlock_irqrestore(&card->ip_lock, flags);
7790 return rc;
7791 }
7792
7793 void
7794 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
7795 u8 *addr, int mask_bits)
7796 {
7797 struct qeth_ipato_entry *ipatoe, *tmp;
7798 unsigned long flags;
7799
7800 QETH_DBF_TEXT(trace, 2, "delipato");
7801 spin_lock_irqsave(&card->ip_lock, flags);
7802 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
7803 if (ipatoe->proto != proto)
7804 continue;
7805 if (!memcmp(ipatoe->addr, addr,
7806 (proto == QETH_PROT_IPV4)? 4:16) &&
7807 (ipatoe->mask_bits == mask_bits)){
7808 list_del(&ipatoe->entry);
7809 kfree(ipatoe);
7810 }
7811 }
7812 spin_unlock_irqrestore(&card->ip_lock, flags);
7813 }
7814
7815 static inline void
7816 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
7817 {
7818 int i, j;
7819 u8 octet;
7820
7821 for (i = 0; i < len; ++i){
7822 octet = addr[i];
7823 for (j = 7; j >= 0; --j){
7824 bits[i*8 + j] = octet & 1;
7825 octet >>= 1;
7826 }
7827 }
7828 }
7829
7830 static int
7831 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
7832 {
7833 struct qeth_ipato_entry *ipatoe;
7834 u8 addr_bits[128] = {0, };
7835 u8 ipatoe_bits[128] = {0, };
7836 int rc = 0;
7837
7838 if (!card->ipato.enabled)
7839 return 0;
7840
7841 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
7842 (addr->proto == QETH_PROT_IPV4)? 4:16);
7843 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
7844 if (addr->proto != ipatoe->proto)
7845 continue;
7846 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
7847 (ipatoe->proto==QETH_PROT_IPV4) ?
7848 4:16);
7849 if (addr->proto == QETH_PROT_IPV4)
7850 rc = !memcmp(addr_bits, ipatoe_bits,
7851 min(32, ipatoe->mask_bits));
7852 else
7853 rc = !memcmp(addr_bits, ipatoe_bits,
7854 min(128, ipatoe->mask_bits));
7855 if (rc)
7856 break;
7857 }
7858 /* invert? */
7859 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
7860 rc = !rc;
7861 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
7862 rc = !rc;
7863
7864 return rc;
7865 }
7866
7867 /*
7868 * VIPA related functions
7869 */
7870 int
7871 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
7872 const u8 *addr)
7873 {
7874 struct qeth_ipaddr *ipaddr;
7875 unsigned long flags;
7876 int rc = 0;
7877
7878 ipaddr = qeth_get_addr_buffer(proto);
7879 if (ipaddr){
7880 if (proto == QETH_PROT_IPV4){
7881 QETH_DBF_TEXT(trace, 2, "addvipa4");
7882 memcpy(&ipaddr->u.a4.addr, addr, 4);
7883 ipaddr->u.a4.mask = 0;
7884 #ifdef CONFIG_QETH_IPV6
7885 } else if (proto == QETH_PROT_IPV6){
7886 QETH_DBF_TEXT(trace, 2, "addvipa6");
7887 memcpy(&ipaddr->u.a6.addr, addr, 16);
7888 ipaddr->u.a6.pfxlen = 0;
7889 #endif
7890 }
7891 ipaddr->type = QETH_IP_TYPE_VIPA;
7892 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
7893 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
7894 } else
7895 return -ENOMEM;
7896 spin_lock_irqsave(&card->ip_lock, flags);
7897 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
7898 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
7899 rc = -EEXIST;
7900 spin_unlock_irqrestore(&card->ip_lock, flags);
7901 if (rc){
7902 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
7903 return rc;
7904 }
7905 if (!qeth_add_ip(card, ipaddr))
7906 kfree(ipaddr);
7907 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7908 schedule_work(&card->kernel_thread_starter);
7909 return rc;
7910 }
7911
7912 void
7913 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
7914 const u8 *addr)
7915 {
7916 struct qeth_ipaddr *ipaddr;
7917
7918 ipaddr = qeth_get_addr_buffer(proto);
7919 if (ipaddr){
7920 if (proto == QETH_PROT_IPV4){
7921 QETH_DBF_TEXT(trace, 2, "delvipa4");
7922 memcpy(&ipaddr->u.a4.addr, addr, 4);
7923 ipaddr->u.a4.mask = 0;
7924 #ifdef CONFIG_QETH_IPV6
7925 } else if (proto == QETH_PROT_IPV6){
7926 QETH_DBF_TEXT(trace, 2, "delvipa6");
7927 memcpy(&ipaddr->u.a6.addr, addr, 16);
7928 ipaddr->u.a6.pfxlen = 0;
7929 #endif
7930 }
7931 ipaddr->type = QETH_IP_TYPE_VIPA;
7932 } else
7933 return;
7934 if (!qeth_delete_ip(card, ipaddr))
7935 kfree(ipaddr);
7936 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7937 schedule_work(&card->kernel_thread_starter);
7938 }
7939
7940 /*
7941 * proxy ARP related functions
7942 */
7943 int
7944 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
7945 const u8 *addr)
7946 {
7947 struct qeth_ipaddr *ipaddr;
7948 unsigned long flags;
7949 int rc = 0;
7950
7951 ipaddr = qeth_get_addr_buffer(proto);
7952 if (ipaddr){
7953 if (proto == QETH_PROT_IPV4){
7954 QETH_DBF_TEXT(trace, 2, "addrxip4");
7955 memcpy(&ipaddr->u.a4.addr, addr, 4);
7956 ipaddr->u.a4.mask = 0;
7957 #ifdef CONFIG_QETH_IPV6
7958 } else if (proto == QETH_PROT_IPV6){
7959 QETH_DBF_TEXT(trace, 2, "addrxip6");
7960 memcpy(&ipaddr->u.a6.addr, addr, 16);
7961 ipaddr->u.a6.pfxlen = 0;
7962 #endif
7963 }
7964 ipaddr->type = QETH_IP_TYPE_RXIP;
7965 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
7966 ipaddr->del_flags = 0;
7967 } else
7968 return -ENOMEM;
7969 spin_lock_irqsave(&card->ip_lock, flags);
7970 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
7971 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
7972 rc = -EEXIST;
7973 spin_unlock_irqrestore(&card->ip_lock, flags);
7974 if (rc){
7975 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
7976 return rc;
7977 }
7978 if (!qeth_add_ip(card, ipaddr))
7979 kfree(ipaddr);
7980 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7981 schedule_work(&card->kernel_thread_starter);
7982 return 0;
7983 }
7984
7985 void
7986 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
7987 const u8 *addr)
7988 {
7989 struct qeth_ipaddr *ipaddr;
7990
7991 ipaddr = qeth_get_addr_buffer(proto);
7992 if (ipaddr){
7993 if (proto == QETH_PROT_IPV4){
7994 QETH_DBF_TEXT(trace, 2, "addrxip4");
7995 memcpy(&ipaddr->u.a4.addr, addr, 4);
7996 ipaddr->u.a4.mask = 0;
7997 #ifdef CONFIG_QETH_IPV6
7998 } else if (proto == QETH_PROT_IPV6){
7999 QETH_DBF_TEXT(trace, 2, "addrxip6");
8000 memcpy(&ipaddr->u.a6.addr, addr, 16);
8001 ipaddr->u.a6.pfxlen = 0;
8002 #endif
8003 }
8004 ipaddr->type = QETH_IP_TYPE_RXIP;
8005 } else
8006 return;
8007 if (!qeth_delete_ip(card, ipaddr))
8008 kfree(ipaddr);
8009 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8010 schedule_work(&card->kernel_thread_starter);
8011 }
8012
8013 /**
8014 * IP event handler
8015 */
8016 static int
8017 qeth_ip_event(struct notifier_block *this,
8018 unsigned long event,void *ptr)
8019 {
8020 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8021 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8022 struct qeth_ipaddr *addr;
8023 struct qeth_card *card;
8024
8025 QETH_DBF_TEXT(trace,3,"ipevent");
8026 card = qeth_get_card_from_dev(dev);
8027 if (!card)
8028 return NOTIFY_DONE;
8029 if (card->options.layer2)
8030 return NOTIFY_DONE;
8031
8032 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8033 if (addr != NULL) {
8034 addr->u.a4.addr = ifa->ifa_address;
8035 addr->u.a4.mask = ifa->ifa_mask;
8036 addr->type = QETH_IP_TYPE_NORMAL;
8037 } else
8038 goto out;
8039
8040 switch(event) {
8041 case NETDEV_UP:
8042 if (!qeth_add_ip(card, addr))
8043 kfree(addr);
8044 break;
8045 case NETDEV_DOWN:
8046 if (!qeth_delete_ip(card, addr))
8047 kfree(addr);
8048 break;
8049 default:
8050 break;
8051 }
8052 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8053 schedule_work(&card->kernel_thread_starter);
8054 out:
8055 return NOTIFY_DONE;
8056 }
8057
8058 static struct notifier_block qeth_ip_notifier = {
8059 qeth_ip_event,
8060 0
8061 };
8062
8063 #ifdef CONFIG_QETH_IPV6
8064 /**
8065 * IPv6 event handler
8066 */
8067 static int
8068 qeth_ip6_event(struct notifier_block *this,
8069 unsigned long event,void *ptr)
8070 {
8071
8072 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8073 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8074 struct qeth_ipaddr *addr;
8075 struct qeth_card *card;
8076
8077 QETH_DBF_TEXT(trace,3,"ip6event");
8078
8079 card = qeth_get_card_from_dev(dev);
8080 if (!card)
8081 return NOTIFY_DONE;
8082 if (!qeth_is_supported(card, IPA_IPV6))
8083 return NOTIFY_DONE;
8084
8085 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8086 if (addr != NULL) {
8087 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8088 addr->u.a6.pfxlen = ifa->prefix_len;
8089 addr->type = QETH_IP_TYPE_NORMAL;
8090 } else
8091 goto out;
8092
8093 switch(event) {
8094 case NETDEV_UP:
8095 if (!qeth_add_ip(card, addr))
8096 kfree(addr);
8097 break;
8098 case NETDEV_DOWN:
8099 if (!qeth_delete_ip(card, addr))
8100 kfree(addr);
8101 break;
8102 default:
8103 break;
8104 }
8105 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8106 schedule_work(&card->kernel_thread_starter);
8107 out:
8108 return NOTIFY_DONE;
8109 }
8110
8111 static struct notifier_block qeth_ip6_notifier = {
8112 qeth_ip6_event,
8113 0
8114 };
8115 #endif
8116
8117 static int
8118 __qeth_reboot_event_card(struct device *dev, void *data)
8119 {
8120 struct qeth_card *card;
8121
8122 card = (struct qeth_card *) dev->driver_data;
8123 qeth_clear_ip_list(card, 0, 0);
8124 qeth_qdio_clear_card(card, 0);
8125 return 0;
8126 }
8127
8128 static int
8129 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8130 {
8131
8132 driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8133 __qeth_reboot_event_card);
8134 return NOTIFY_DONE;
8135 }
8136
8137
8138 static struct notifier_block qeth_reboot_notifier = {
8139 qeth_reboot_event,
8140 0
8141 };
8142
8143 static int
8144 qeth_register_notifiers(void)
8145 {
8146 int r;
8147
8148 QETH_DBF_TEXT(trace,5,"regnotif");
8149 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8150 return r;
8151 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8152 goto out_reboot;
8153 #ifdef CONFIG_QETH_IPV6
8154 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8155 goto out_ipv4;
8156 #endif
8157 return 0;
8158
8159 #ifdef CONFIG_QETH_IPV6
8160 out_ipv4:
8161 unregister_inetaddr_notifier(&qeth_ip_notifier);
8162 #endif
8163 out_reboot:
8164 unregister_reboot_notifier(&qeth_reboot_notifier);
8165 return r;
8166 }
8167
8168 /**
8169 * unregister all event notifiers
8170 */
8171 static void
8172 qeth_unregister_notifiers(void)
8173 {
8174
8175 QETH_DBF_TEXT(trace,5,"unregnot");
8176 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8177 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8178 #ifdef CONFIG_QETH_IPV6
8179 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8180 #endif /* QETH_IPV6 */
8181
8182 }
8183
8184 #ifdef CONFIG_QETH_IPV6
8185 static int
8186 qeth_ipv6_init(void)
8187 {
8188 qeth_old_arp_constructor = arp_tbl.constructor;
8189 write_lock(&arp_tbl.lock);
8190 arp_tbl.constructor = qeth_arp_constructor;
8191 write_unlock(&arp_tbl.lock);
8192
8193 arp_direct_ops = (struct neigh_ops*)
8194 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8195 if (!arp_direct_ops)
8196 return -ENOMEM;
8197
8198 memcpy(arp_direct_ops, &arp_direct_ops_template,
8199 sizeof(struct neigh_ops));
8200
8201 return 0;
8202 }
8203
8204 static void
8205 qeth_ipv6_uninit(void)
8206 {
8207 write_lock(&arp_tbl.lock);
8208 arp_tbl.constructor = qeth_old_arp_constructor;
8209 write_unlock(&arp_tbl.lock);
8210 kfree(arp_direct_ops);
8211 }
8212 #endif /* CONFIG_QETH_IPV6 */
8213
8214 static void
8215 qeth_sysfs_unregister(void)
8216 {
8217 qeth_remove_driver_attributes();
8218 ccw_driver_unregister(&qeth_ccw_driver);
8219 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8220 s390_root_dev_unregister(qeth_root_dev);
8221 }
8222 /**
8223 * register qeth at sysfs
8224 */
8225 static int
8226 qeth_sysfs_register(void)
8227 {
8228 int rc=0;
8229
8230 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8231 if (rc)
8232 return rc;
8233 rc = ccw_driver_register(&qeth_ccw_driver);
8234 if (rc)
8235 return rc;
8236 rc = qeth_create_driver_attributes();
8237 if (rc)
8238 return rc;
8239 qeth_root_dev = s390_root_dev_register("qeth");
8240 if (IS_ERR(qeth_root_dev)) {
8241 rc = PTR_ERR(qeth_root_dev);
8242 return rc;
8243 }
8244 return 0;
8245 }
8246
8247 /***
8248 * init function
8249 */
8250 static int __init
8251 qeth_init(void)
8252 {
8253 int rc=0;
8254
8255 PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
8256 version, VERSION_QETH_C, VERSION_QETH_H,
8257 VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
8258 VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
8259 VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
8260 QETH_VERSION_VLAN);
8261
8262 INIT_LIST_HEAD(&qeth_card_list.list);
8263 INIT_LIST_HEAD(&qeth_notify_list);
8264 spin_lock_init(&qeth_notify_lock);
8265 rwlock_init(&qeth_card_list.rwlock);
8266
8267 if (qeth_register_dbf_views())
8268 goto out_err;
8269 if (qeth_sysfs_register())
8270 goto out_sysfs;
8271
8272 #ifdef CONFIG_QETH_IPV6
8273 if (qeth_ipv6_init()) {
8274 PRINT_ERR("Out of memory during ipv6 init.\n");
8275 goto out_sysfs;
8276 }
8277 #endif /* QETH_IPV6 */
8278 if (qeth_register_notifiers())
8279 goto out_ipv6;
8280 if (qeth_create_procfs_entries())
8281 goto out_notifiers;
8282
8283 return rc;
8284
8285 out_notifiers:
8286 qeth_unregister_notifiers();
8287 out_ipv6:
8288 #ifdef CONFIG_QETH_IPV6
8289 qeth_ipv6_uninit();
8290 #endif /* QETH_IPV6 */
8291 out_sysfs:
8292 qeth_sysfs_unregister();
8293 qeth_unregister_dbf_views();
8294 out_err:
8295 PRINT_ERR("Initialization failed");
8296 return rc;
8297 }
8298
8299 static void
8300 __exit qeth_exit(void)
8301 {
8302 struct qeth_card *card, *tmp;
8303 unsigned long flags;
8304
8305 QETH_DBF_TEXT(trace,1, "cleanup.");
8306
8307 /*
8308 * Weed would not need to clean up our devices here, because the
8309 * common device layer calls qeth_remove_device for each device
8310 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8311 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8312 * qeth_remove_device called by the common device layer would otherwise
8313 * do a "hard" shutdown (card->use_hard_stop is set to one in
8314 * qeth_remove_device).
8315 */
8316 again:
8317 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8318 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8319 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8320 qeth_set_offline(card->gdev);
8321 qeth_remove_device(card->gdev);
8322 goto again;
8323 }
8324 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8325 #ifdef CONFIG_QETH_IPV6
8326 qeth_ipv6_uninit();
8327 #endif
8328 qeth_unregister_notifiers();
8329 qeth_remove_procfs_entries();
8330 qeth_sysfs_unregister();
8331 qeth_unregister_dbf_views();
8332 printk("qeth: removed\n");
8333 }
8334
8335 module_init(qeth_init);
8336 module_exit(qeth_exit);
8337 MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
8338 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8339 "Copyright 2000,2003 IBM Corporation\n");
8340
8341 MODULE_LICENSE("GPL");
Verdex Pro support