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[23/37] Clean up duplicate includes in
[linux-2.6/kmemtrace.git] / drivers / s390 / net / qeth_main.c
blobf3e6fbeb2123192d4f1b279e1bcaedfb60a30c23
1 /*
2 * linux/drivers/s390/net/qeth_main.c
3 *
4 * Linux on zSeries OSA Express and HiperSockets support
5 *
6 * Copyright 2000,2003 IBM Corporation
7 *
8 * Author(s): Original Code written by
9 * Utz Bacher (utz.bacher@de.ibm.com)
10 * Rewritten by
11 * Frank Pavlic (fpavlic@de.ibm.com) and
12 * Thomas Spatzier <tspat@de.ibm.com>
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
29
30 #include <linux/module.h>
31 #include <linux/moduleparam.h>
32 #include <linux/string.h>
33 #include <linux/errno.h>
34 #include <linux/mm.h>
35 #include <linux/ip.h>
36 #include <linux/inetdevice.h>
37 #include <linux/netdevice.h>
38 #include <linux/sched.h>
39 #include <linux/workqueue.h>
40 #include <linux/kernel.h>
41 #include <linux/slab.h>
42 #include <linux/interrupt.h>
43 #include <linux/tcp.h>
44 #include <linux/icmp.h>
45 #include <linux/skbuff.h>
46 #include <linux/in.h>
47 #include <linux/igmp.h>
48 #include <linux/init.h>
49 #include <linux/reboot.h>
50 #include <linux/mii.h>
51 #include <linux/rcupdate.h>
52 #include <linux/ethtool.h>
53
54 #include <net/arp.h>
55 #include <net/ip.h>
56 #include <net/route.h>
57
58 #include <asm/ebcdic.h>
59 #include <asm/io.h>
60 #include <asm/qeth.h>
61 #include <asm/timex.h>
62 #include <asm/semaphore.h>
63 #include <asm/uaccess.h>
64 #include <asm/s390_rdev.h>
65
66 #include "qeth.h"
67 #include "qeth_mpc.h"
68 #include "qeth_fs.h"
69 #include "qeth_eddp.h"
70 #include "qeth_tso.h"
71
72 static const char *version = "qeth S/390 OSA-Express driver";
73
74 /**
75 * Debug Facility Stuff
76 */
77 static debug_info_t *qeth_dbf_setup = NULL;
78 static debug_info_t *qeth_dbf_data = NULL;
79 static debug_info_t *qeth_dbf_misc = NULL;
80 static debug_info_t *qeth_dbf_control = NULL;
81 debug_info_t *qeth_dbf_trace = NULL;
82 static debug_info_t *qeth_dbf_sense = NULL;
83 static debug_info_t *qeth_dbf_qerr = NULL;
84
85 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
86
87 static struct lock_class_key qdio_out_skb_queue_key;
88
89 /**
90 * some more definitions and declarations
91 */
92 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
93
94 /* list of our cards */
95 struct qeth_card_list_struct qeth_card_list;
96 /*process list want to be notified*/
97 spinlock_t qeth_notify_lock;
98 struct list_head qeth_notify_list;
99
100 static void qeth_send_control_data_cb(struct qeth_channel *,
101 struct qeth_cmd_buffer *);
102
103 /**
104 * here we go with function implementation
105 */
106 static void
107 qeth_init_qdio_info(struct qeth_card *card);
108
109 static int
110 qeth_init_qdio_queues(struct qeth_card *card);
111
112 static int
113 qeth_alloc_qdio_buffers(struct qeth_card *card);
114
115 static void
116 qeth_free_qdio_buffers(struct qeth_card *);
117
118 static void
119 qeth_clear_qdio_buffers(struct qeth_card *);
120
121 static void
122 qeth_clear_ip_list(struct qeth_card *, int, int);
123
124 static void
125 qeth_clear_ipacmd_list(struct qeth_card *);
126
127 static int
128 qeth_qdio_clear_card(struct qeth_card *, int);
129
130 static void
131 qeth_clear_working_pool_list(struct qeth_card *);
132
133 static void
134 qeth_clear_cmd_buffers(struct qeth_channel *);
135
136 static int
137 qeth_stop(struct net_device *);
138
139 static void
140 qeth_clear_ipato_list(struct qeth_card *);
141
142 static int
143 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
144
145 static void
146 qeth_irq_tasklet(unsigned long);
147
148 static int
149 qeth_set_online(struct ccwgroup_device *);
150
151 static int
152 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
153
154 static struct qeth_ipaddr *
155 qeth_get_addr_buffer(enum qeth_prot_versions);
156
157 static void
158 qeth_set_multicast_list(struct net_device *);
159
160 static void
161 qeth_setadp_promisc_mode(struct qeth_card *);
162
163 static void
164 qeth_notify_processes(void)
165 {
166 /*notify all registered processes */
167 struct qeth_notify_list_struct *n_entry;
168
169 QETH_DBF_TEXT(trace,3,"procnoti");
170 spin_lock(&qeth_notify_lock);
171 list_for_each_entry(n_entry, &qeth_notify_list, list) {
172 send_sig(n_entry->signum, n_entry->task, 1);
173 }
174 spin_unlock(&qeth_notify_lock);
175
176 }
177 int
178 qeth_notifier_unregister(struct task_struct *p)
179 {
180 struct qeth_notify_list_struct *n_entry, *tmp;
181
182 QETH_DBF_TEXT(trace, 2, "notunreg");
183 spin_lock(&qeth_notify_lock);
184 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
185 if (n_entry->task == p) {
186 list_del(&n_entry->list);
187 kfree(n_entry);
188 goto out;
189 }
190 }
191 out:
192 spin_unlock(&qeth_notify_lock);
193 return 0;
194 }
195 int
196 qeth_notifier_register(struct task_struct *p, int signum)
197 {
198 struct qeth_notify_list_struct *n_entry;
199
200 /*check first if entry already exists*/
201 spin_lock(&qeth_notify_lock);
202 list_for_each_entry(n_entry, &qeth_notify_list, list) {
203 if (n_entry->task == p) {
204 n_entry->signum = signum;
205 spin_unlock(&qeth_notify_lock);
206 return 0;
207 }
208 }
209 spin_unlock(&qeth_notify_lock);
210
211 n_entry = (struct qeth_notify_list_struct *)
212 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
213 if (!n_entry)
214 return -ENOMEM;
215 n_entry->task = p;
216 n_entry->signum = signum;
217 spin_lock(&qeth_notify_lock);
218 list_add(&n_entry->list,&qeth_notify_list);
219 spin_unlock(&qeth_notify_lock);
220 return 0;
221 }
222
223
224 /**
225 * free channel command buffers
226 */
227 static void
228 qeth_clean_channel(struct qeth_channel *channel)
229 {
230 int cnt;
231
232 QETH_DBF_TEXT(setup, 2, "freech");
233 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
234 kfree(channel->iob[cnt].data);
235 }
236
237 /**
238 * free card
239 */
240 static void
241 qeth_free_card(struct qeth_card *card)
242 {
243
244 QETH_DBF_TEXT(setup, 2, "freecrd");
245 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
246 qeth_clean_channel(&card->read);
247 qeth_clean_channel(&card->write);
248 if (card->dev)
249 free_netdev(card->dev);
250 qeth_clear_ip_list(card, 0, 0);
251 qeth_clear_ipato_list(card);
252 kfree(card->ip_tbd_list);
253 qeth_free_qdio_buffers(card);
254 kfree(card);
255 }
256
257 /**
258 * alloc memory for command buffer per channel
259 */
260 static int
261 qeth_setup_channel(struct qeth_channel *channel)
262 {
263 int cnt;
264
265 QETH_DBF_TEXT(setup, 2, "setupch");
266 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
267 channel->iob[cnt].data = (char *)
268 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
269 if (channel->iob[cnt].data == NULL)
270 break;
271 channel->iob[cnt].state = BUF_STATE_FREE;
272 channel->iob[cnt].channel = channel;
273 channel->iob[cnt].callback = qeth_send_control_data_cb;
274 channel->iob[cnt].rc = 0;
275 }
276 if (cnt < QETH_CMD_BUFFER_NO) {
277 while (cnt-- > 0)
278 kfree(channel->iob[cnt].data);
279 return -ENOMEM;
280 }
281 channel->buf_no = 0;
282 channel->io_buf_no = 0;
283 atomic_set(&channel->irq_pending, 0);
284 spin_lock_init(&channel->iob_lock);
285
286 init_waitqueue_head(&channel->wait_q);
287 channel->irq_tasklet.data = (unsigned long) channel;
288 channel->irq_tasklet.func = qeth_irq_tasklet;
289 return 0;
290 }
291
292 /**
293 * alloc memory for card structure
294 */
295 static struct qeth_card *
296 qeth_alloc_card(void)
297 {
298 struct qeth_card *card;
299
300 QETH_DBF_TEXT(setup, 2, "alloccrd");
301 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
302 if (!card)
303 return NULL;
304 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
305 if (qeth_setup_channel(&card->read)) {
306 kfree(card);
307 return NULL;
308 }
309 if (qeth_setup_channel(&card->write)) {
310 qeth_clean_channel(&card->read);
311 kfree(card);
312 return NULL;
313 }
314 return card;
315 }
316
317 static long
318 __qeth_check_irb_error(struct ccw_device *cdev, unsigned long intparm,
319 struct irb *irb)
320 {
321 if (!IS_ERR(irb))
322 return 0;
323
324 switch (PTR_ERR(irb)) {
325 case -EIO:
326 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
327 QETH_DBF_TEXT(trace, 2, "ckirberr");
328 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
329 break;
330 case -ETIMEDOUT:
331 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
332 QETH_DBF_TEXT(trace, 2, "ckirberr");
333 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
334 if (intparm == QETH_RCD_PARM) {
335 struct qeth_card *card = CARD_FROM_CDEV(cdev);
336
337 if (card && (card->data.ccwdev == cdev)) {
338 card->data.state = CH_STATE_DOWN;
339 wake_up(&card->wait_q);
340 }
341 }
342 break;
343 default:
344 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
345 cdev->dev.bus_id);
346 QETH_DBF_TEXT(trace, 2, "ckirberr");
347 QETH_DBF_TEXT(trace, 2, " rc???");
348 }
349 return PTR_ERR(irb);
350 }
351
352 static int
353 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
354 {
355 int dstat,cstat;
356 char *sense;
357
358 sense = (char *) irb->ecw;
359 cstat = irb->scsw.cstat;
360 dstat = irb->scsw.dstat;
361
362 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
363 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
364 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
365 QETH_DBF_TEXT(trace,2, "CGENCHK");
366 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
367 cdev->dev.bus_id, dstat, cstat);
368 HEXDUMP16(WARN, "irb: ", irb);
369 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
370 return 1;
371 }
372
373 if (dstat & DEV_STAT_UNIT_CHECK) {
374 if (sense[SENSE_RESETTING_EVENT_BYTE] &
375 SENSE_RESETTING_EVENT_FLAG) {
376 QETH_DBF_TEXT(trace,2,"REVIND");
377 return 1;
378 }
379 if (sense[SENSE_COMMAND_REJECT_BYTE] &
380 SENSE_COMMAND_REJECT_FLAG) {
381 QETH_DBF_TEXT(trace,2,"CMDREJi");
382 return 0;
383 }
384 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
385 QETH_DBF_TEXT(trace,2,"AFFE");
386 return 1;
387 }
388 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
389 QETH_DBF_TEXT(trace,2,"ZEROSEN");
390 return 0;
391 }
392 QETH_DBF_TEXT(trace,2,"DGENCHK");
393 return 1;
394 }
395 return 0;
396 }
397 static int qeth_issue_next_read(struct qeth_card *);
398
399 /**
400 * interrupt handler
401 */
402 static void
403 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
404 {
405 int rc;
406 int cstat,dstat;
407 struct qeth_cmd_buffer *buffer;
408 struct qeth_channel *channel;
409 struct qeth_card *card;
410
411 QETH_DBF_TEXT(trace,5,"irq");
412
413 if (__qeth_check_irb_error(cdev, intparm, irb))
414 return;
415 cstat = irb->scsw.cstat;
416 dstat = irb->scsw.dstat;
417
418 card = CARD_FROM_CDEV(cdev);
419 if (!card)
420 return;
421
422 if (card->read.ccwdev == cdev){
423 channel = &card->read;
424 QETH_DBF_TEXT(trace,5,"read");
425 } else if (card->write.ccwdev == cdev) {
426 channel = &card->write;
427 QETH_DBF_TEXT(trace,5,"write");
428 } else {
429 channel = &card->data;
430 QETH_DBF_TEXT(trace,5,"data");
431 }
432 atomic_set(&channel->irq_pending, 0);
433
434 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
435 channel->state = CH_STATE_STOPPED;
436
437 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
438 channel->state = CH_STATE_HALTED;
439
440 /*let's wake up immediately on data channel*/
441 if ((channel == &card->data) && (intparm != 0) &&
442 (intparm != QETH_RCD_PARM))
443 goto out;
444
445 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
446 QETH_DBF_TEXT(trace, 6, "clrchpar");
447 /* we don't have to handle this further */
448 intparm = 0;
449 }
450 if (intparm == QETH_HALT_CHANNEL_PARM) {
451 QETH_DBF_TEXT(trace, 6, "hltchpar");
452 /* we don't have to handle this further */
453 intparm = 0;
454 }
455 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
456 (dstat & DEV_STAT_UNIT_CHECK) ||
457 (cstat)) {
458 if (irb->esw.esw0.erw.cons) {
459 /* TODO: we should make this s390dbf */
460 PRINT_WARN("sense data available on channel %s.\n",
461 CHANNEL_ID(channel));
462 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
463 HEXDUMP16(WARN,"irb: ",irb);
464 HEXDUMP16(WARN,"sense data: ",irb->ecw);
465 }
466 if (intparm == QETH_RCD_PARM) {
467 channel->state = CH_STATE_DOWN;
468 goto out;
469 }
470 rc = qeth_get_problem(cdev,irb);
471 if (rc) {
472 qeth_schedule_recovery(card);
473 goto out;
474 }
475 }
476
477 if (intparm == QETH_RCD_PARM) {
478 channel->state = CH_STATE_RCD_DONE;
479 goto out;
480 }
481 if (intparm) {
482 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
483 buffer->state = BUF_STATE_PROCESSED;
484 }
485 if (channel == &card->data)
486 return;
487
488 if (channel == &card->read &&
489 channel->state == CH_STATE_UP)
490 qeth_issue_next_read(card);
491
492 qeth_irq_tasklet((unsigned long)channel);
493 return;
494 out:
495 wake_up(&card->wait_q);
496 }
497
498 /**
499 * tasklet function scheduled from irq handler
500 */
501 static void
502 qeth_irq_tasklet(unsigned long data)
503 {
504 struct qeth_card *card;
505 struct qeth_channel *channel;
506 struct qeth_cmd_buffer *iob;
507 __u8 index;
508
509 QETH_DBF_TEXT(trace,5,"irqtlet");
510 channel = (struct qeth_channel *) data;
511 iob = channel->iob;
512 index = channel->buf_no;
513 card = CARD_FROM_CDEV(channel->ccwdev);
514 while (iob[index].state == BUF_STATE_PROCESSED) {
515 if (iob[index].callback !=NULL) {
516 iob[index].callback(channel,iob + index);
517 }
518 index = (index + 1) % QETH_CMD_BUFFER_NO;
519 }
520 channel->buf_no = index;
521 wake_up(&card->wait_q);
522 }
523
524 static int qeth_stop_card(struct qeth_card *, int);
525
526 static int
527 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
528 {
529 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
530 int rc = 0, rc2 = 0, rc3 = 0;
531 enum qeth_card_states recover_flag;
532
533 QETH_DBF_TEXT(setup, 3, "setoffl");
534 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
535
536 if (card->dev && netif_carrier_ok(card->dev))
537 netif_carrier_off(card->dev);
538 recover_flag = card->state;
539 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
540 PRINT_WARN("Stopping card %s interrupted by user!\n",
541 CARD_BUS_ID(card));
542 return -ERESTARTSYS;
543 }
544 rc = ccw_device_set_offline(CARD_DDEV(card));
545 rc2 = ccw_device_set_offline(CARD_WDEV(card));
546 rc3 = ccw_device_set_offline(CARD_RDEV(card));
547 if (!rc)
548 rc = (rc2) ? rc2 : rc3;
549 if (rc)
550 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
551 if (recover_flag == CARD_STATE_UP)
552 card->state = CARD_STATE_RECOVER;
553 qeth_notify_processes();
554 return 0;
555 }
556
557 static int
558 qeth_set_offline(struct ccwgroup_device *cgdev)
559 {
560 return __qeth_set_offline(cgdev, 0);
561 }
562
563 static int
564 qeth_threads_running(struct qeth_card *card, unsigned long threads);
565
566
567 static void
568 qeth_remove_device(struct ccwgroup_device *cgdev)
569 {
570 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
571 unsigned long flags;
572
573 QETH_DBF_TEXT(setup, 3, "rmdev");
574 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
575
576 if (!card)
577 return;
578
579 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
580
581 if (cgdev->state == CCWGROUP_ONLINE){
582 card->use_hard_stop = 1;
583 qeth_set_offline(cgdev);
584 }
585 /* remove form our internal list */
586 write_lock_irqsave(&qeth_card_list.rwlock, flags);
587 list_del(&card->list);
588 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
589 if (card->dev)
590 unregister_netdev(card->dev);
591 qeth_remove_device_attributes(&cgdev->dev);
592 qeth_free_card(card);
593 cgdev->dev.driver_data = NULL;
594 put_device(&cgdev->dev);
595 }
596
597 static int
598 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
599 static int
600 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
601
602 /**
603 * Add/remove address to/from card's ip list, i.e. try to add or remove
604 * reference to/from an IP address that is already registered on the card.
605 * Returns:
606 * 0 address was on card and its reference count has been adjusted,
607 * but is still > 0, so nothing has to be done
608 * also returns 0 if card was not on card and the todo was to delete
609 * the address -> there is also nothing to be done
610 * 1 address was not on card and the todo is to add it to the card's ip
611 * list
612 * -1 address was on card and its reference count has been decremented
613 * to <= 0 by the todo -> address must be removed from card
614 */
615 static int
616 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
617 struct qeth_ipaddr **__addr)
618 {
619 struct qeth_ipaddr *addr;
620 int found = 0;
621
622 list_for_each_entry(addr, &card->ip_list, entry) {
623 if (card->options.layer2) {
624 if ((addr->type == todo->type) &&
625 (memcmp(&addr->mac, &todo->mac,
626 OSA_ADDR_LEN) == 0)) {
627 found = 1;
628 break;
629 }
630 continue;
631 }
632 if ((addr->proto == QETH_PROT_IPV4) &&
633 (todo->proto == QETH_PROT_IPV4) &&
634 (addr->type == todo->type) &&
635 (addr->u.a4.addr == todo->u.a4.addr) &&
636 (addr->u.a4.mask == todo->u.a4.mask)) {
637 found = 1;
638 break;
639 }
640 if ((addr->proto == QETH_PROT_IPV6) &&
641 (todo->proto == QETH_PROT_IPV6) &&
642 (addr->type == todo->type) &&
643 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
644 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
645 sizeof(struct in6_addr)) == 0)) {
646 found = 1;
647 break;
648 }
649 }
650 if (found) {
651 addr->users += todo->users;
652 if (addr->users <= 0){
653 *__addr = addr;
654 return -1;
655 } else {
656 /* for VIPA and RXIP limit refcount to 1 */
657 if (addr->type != QETH_IP_TYPE_NORMAL)
658 addr->users = 1;
659 return 0;
660 }
661 }
662 if (todo->users > 0) {
663 /* for VIPA and RXIP limit refcount to 1 */
664 if (todo->type != QETH_IP_TYPE_NORMAL)
665 todo->users = 1;
666 return 1;
667 } else
668 return 0;
669 }
670
671 static int
672 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
673 int same_type)
674 {
675 struct qeth_ipaddr *tmp;
676
677 list_for_each_entry(tmp, list, entry) {
678 if ((tmp->proto == QETH_PROT_IPV4) &&
679 (addr->proto == QETH_PROT_IPV4) &&
680 ((same_type && (tmp->type == addr->type)) ||
681 (!same_type && (tmp->type != addr->type)) ) &&
682 (tmp->u.a4.addr == addr->u.a4.addr) ){
683 return 1;
684 }
685 if ((tmp->proto == QETH_PROT_IPV6) &&
686 (addr->proto == QETH_PROT_IPV6) &&
687 ((same_type && (tmp->type == addr->type)) ||
688 (!same_type && (tmp->type != addr->type)) ) &&
689 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
690 sizeof(struct in6_addr)) == 0) ) {
691 return 1;
692 }
693 }
694 return 0;
695 }
696
697 /*
698 * Add IP to be added to todo list. If there is already an "add todo"
699 * in this list we just incremenent the reference count.
700 * Returns 0 if we just incremented reference count.
701 */
702 static int
703 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
704 {
705 struct qeth_ipaddr *tmp, *t;
706 int found = 0;
707
708 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
709 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
710 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
711 return 0;
712 if (card->options.layer2) {
713 if ((tmp->type == addr->type) &&
714 (tmp->is_multicast == addr->is_multicast) &&
715 (memcmp(&tmp->mac, &addr->mac,
716 OSA_ADDR_LEN) == 0)) {
717 found = 1;
718 break;
719 }
720 continue;
721 }
722 if ((tmp->proto == QETH_PROT_IPV4) &&
723 (addr->proto == QETH_PROT_IPV4) &&
724 (tmp->type == addr->type) &&
725 (tmp->is_multicast == addr->is_multicast) &&
726 (tmp->u.a4.addr == addr->u.a4.addr) &&
727 (tmp->u.a4.mask == addr->u.a4.mask)) {
728 found = 1;
729 break;
730 }
731 if ((tmp->proto == QETH_PROT_IPV6) &&
732 (addr->proto == QETH_PROT_IPV6) &&
733 (tmp->type == addr->type) &&
734 (tmp->is_multicast == addr->is_multicast) &&
735 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
736 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
737 sizeof(struct in6_addr)) == 0)) {
738 found = 1;
739 break;
740 }
741 }
742 if (found){
743 if (addr->users != 0)
744 tmp->users += addr->users;
745 else
746 tmp->users += add? 1:-1;
747 if (tmp->users == 0) {
748 list_del(&tmp->entry);
749 kfree(tmp);
750 }
751 return 0;
752 } else {
753 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
754 list_add(&addr->entry, card->ip_tbd_list);
755 else {
756 if (addr->users == 0)
757 addr->users += add? 1:-1;
758 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
759 qeth_is_addr_covered_by_ipato(card, addr)){
760 QETH_DBF_TEXT(trace, 2, "tkovaddr");
761 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
762 }
763 list_add_tail(&addr->entry, card->ip_tbd_list);
764 }
765 return 1;
766 }
767 }
768
769 /**
770 * Remove IP address from list
771 */
772 static int
773 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
774 {
775 unsigned long flags;
776 int rc = 0;
777
778 QETH_DBF_TEXT(trace, 4, "delip");
779
780 if (card->options.layer2)
781 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
782 else if (addr->proto == QETH_PROT_IPV4)
783 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
784 else {
785 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
786 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
787 }
788 spin_lock_irqsave(&card->ip_lock, flags);
789 rc = __qeth_insert_ip_todo(card, addr, 0);
790 spin_unlock_irqrestore(&card->ip_lock, flags);
791 return rc;
792 }
793
794 static int
795 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
796 {
797 unsigned long flags;
798 int rc = 0;
799
800 QETH_DBF_TEXT(trace, 4, "addip");
801 if (card->options.layer2)
802 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
803 else if (addr->proto == QETH_PROT_IPV4)
804 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
805 else {
806 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
807 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
808 }
809 spin_lock_irqsave(&card->ip_lock, flags);
810 rc = __qeth_insert_ip_todo(card, addr, 1);
811 spin_unlock_irqrestore(&card->ip_lock, flags);
812 return rc;
813 }
814
815 static void
816 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
817 {
818 struct qeth_ipaddr *addr, *tmp;
819 int rc;
820 again:
821 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
822 if (addr->is_multicast) {
823 spin_unlock_irqrestore(&card->ip_lock, *flags);
824 rc = qeth_deregister_addr_entry(card, addr);
825 spin_lock_irqsave(&card->ip_lock, *flags);
826 if (!rc) {
827 list_del(&addr->entry);
828 kfree(addr);
829 goto again;
830 }
831 }
832 }
833 }
834
835 static void
836 qeth_set_ip_addr_list(struct qeth_card *card)
837 {
838 struct list_head *tbd_list;
839 struct qeth_ipaddr *todo, *addr;
840 unsigned long flags;
841 int rc;
842
843 QETH_DBF_TEXT(trace, 2, "sdiplist");
844 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
845
846 spin_lock_irqsave(&card->ip_lock, flags);
847 tbd_list = card->ip_tbd_list;
848 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
849 if (!card->ip_tbd_list) {
850 QETH_DBF_TEXT(trace, 0, "silnomem");
851 card->ip_tbd_list = tbd_list;
852 spin_unlock_irqrestore(&card->ip_lock, flags);
853 return;
854 } else
855 INIT_LIST_HEAD(card->ip_tbd_list);
856
857 while (!list_empty(tbd_list)){
858 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
859 list_del(&todo->entry);
860 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
861 __qeth_delete_all_mc(card, &flags);
862 kfree(todo);
863 continue;
864 }
865 rc = __qeth_ref_ip_on_card(card, todo, &addr);
866 if (rc == 0) {
867 /* nothing to be done; only adjusted refcount */
868 kfree(todo);
869 } else if (rc == 1) {
870 /* new entry to be added to on-card list */
871 spin_unlock_irqrestore(&card->ip_lock, flags);
872 rc = qeth_register_addr_entry(card, todo);
873 spin_lock_irqsave(&card->ip_lock, flags);
874 if (!rc)
875 list_add_tail(&todo->entry, &card->ip_list);
876 else
877 kfree(todo);
878 } else if (rc == -1) {
879 /* on-card entry to be removed */
880 list_del_init(&addr->entry);
881 spin_unlock_irqrestore(&card->ip_lock, flags);
882 rc = qeth_deregister_addr_entry(card, addr);
883 spin_lock_irqsave(&card->ip_lock, flags);
884 if (!rc)
885 kfree(addr);
886 else
887 list_add_tail(&addr->entry, &card->ip_list);
888 kfree(todo);
889 }
890 }
891 spin_unlock_irqrestore(&card->ip_lock, flags);
892 kfree(tbd_list);
893 }
894
895 static void qeth_delete_mc_addresses(struct qeth_card *);
896 static void qeth_add_multicast_ipv4(struct qeth_card *);
897 static void qeth_layer2_add_multicast(struct qeth_card *);
898 #ifdef CONFIG_QETH_IPV6
899 static void qeth_add_multicast_ipv6(struct qeth_card *);
900 #endif
901
902 static int
903 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
904 {
905 unsigned long flags;
906
907 spin_lock_irqsave(&card->thread_mask_lock, flags);
908 if ( !(card->thread_allowed_mask & thread) ||
909 (card->thread_start_mask & thread) ) {
910 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
911 return -EPERM;
912 }
913 card->thread_start_mask |= thread;
914 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
915 return 0;
916 }
917
918 static void
919 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
920 {
921 unsigned long flags;
922
923 spin_lock_irqsave(&card->thread_mask_lock, flags);
924 card->thread_start_mask &= ~thread;
925 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
926 wake_up(&card->wait_q);
927 }
928
929 static void
930 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
931 {
932 unsigned long flags;
933
934 spin_lock_irqsave(&card->thread_mask_lock, flags);
935 card->thread_running_mask &= ~thread;
936 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
937 wake_up(&card->wait_q);
938 }
939
940 static int
941 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
942 {
943 unsigned long flags;
944 int rc = 0;
945
946 spin_lock_irqsave(&card->thread_mask_lock, flags);
947 if (card->thread_start_mask & thread){
948 if ((card->thread_allowed_mask & thread) &&
949 !(card->thread_running_mask & thread)){
950 rc = 1;
951 card->thread_start_mask &= ~thread;
952 card->thread_running_mask |= thread;
953 } else
954 rc = -EPERM;
955 }
956 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
957 return rc;
958 }
959
960 static int
961 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
962 {
963 int rc = 0;
964
965 wait_event(card->wait_q,
966 (rc = __qeth_do_run_thread(card, thread)) >= 0);
967 return rc;
968 }
969
970 static int
971 qeth_recover(void *ptr)
972 {
973 struct qeth_card *card;
974 int rc = 0;
975
976 card = (struct qeth_card *) ptr;
977 daemonize("qeth_recover");
978 QETH_DBF_TEXT(trace,2,"recover1");
979 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
980 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
981 return 0;
982 QETH_DBF_TEXT(trace,2,"recover2");
983 PRINT_WARN("Recovery of device %s started ...\n",
984 CARD_BUS_ID(card));
985 card->use_hard_stop = 1;
986 __qeth_set_offline(card->gdev,1);
987 rc = __qeth_set_online(card->gdev,1);
988 /* don't run another scheduled recovery */
989 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
990 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
991 if (!rc)
992 PRINT_INFO("Device %s successfully recovered!\n",
993 CARD_BUS_ID(card));
994 else
995 PRINT_INFO("Device %s could not be recovered!\n",
996 CARD_BUS_ID(card));
997 return 0;
998 }
999
1000 void
1001 qeth_schedule_recovery(struct qeth_card *card)
1002 {
1003 QETH_DBF_TEXT(trace,2,"startrec");
1004 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1005 schedule_work(&card->kernel_thread_starter);
1006 }
1007
1008 static int
1009 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1010 {
1011 unsigned long flags;
1012 int rc = 0;
1013
1014 spin_lock_irqsave(&card->thread_mask_lock, flags);
1015 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1016 (u8) card->thread_start_mask,
1017 (u8) card->thread_allowed_mask,
1018 (u8) card->thread_running_mask);
1019 rc = (card->thread_start_mask & thread);
1020 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1021 return rc;
1022 }
1023
1024 static void
1025 qeth_start_kernel_thread(struct work_struct *work)
1026 {
1027 struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1028 QETH_DBF_TEXT(trace , 2, "strthrd");
1029
1030 if (card->read.state != CH_STATE_UP &&
1031 card->write.state != CH_STATE_UP)
1032 return;
1033 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1034 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1035 }
1036
1037
1038 static void
1039 qeth_set_intial_options(struct qeth_card *card)
1040 {
1041 card->options.route4.type = NO_ROUTER;
1042 #ifdef CONFIG_QETH_IPV6
1043 card->options.route6.type = NO_ROUTER;
1044 #endif /* QETH_IPV6 */
1045 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1046 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1047 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1048 card->options.fake_broadcast = 0;
1049 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1050 card->options.fake_ll = 0;
1051 if (card->info.type == QETH_CARD_TYPE_OSN)
1052 card->options.layer2 = 1;
1053 else
1054 card->options.layer2 = 0;
1055 card->options.performance_stats = 0;
1056 card->options.rx_sg_cb = QETH_RX_SG_CB;
1057 }
1058
1059 /**
1060 * initialize channels ,card and all state machines
1061 */
1062 static int
1063 qeth_setup_card(struct qeth_card *card)
1064 {
1065
1066 QETH_DBF_TEXT(setup, 2, "setupcrd");
1067 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1068
1069 card->read.state = CH_STATE_DOWN;
1070 card->write.state = CH_STATE_DOWN;
1071 card->data.state = CH_STATE_DOWN;
1072 card->state = CARD_STATE_DOWN;
1073 card->lan_online = 0;
1074 card->use_hard_stop = 0;
1075 card->dev = NULL;
1076 #ifdef CONFIG_QETH_VLAN
1077 spin_lock_init(&card->vlanlock);
1078 card->vlangrp = NULL;
1079 #endif
1080 spin_lock_init(&card->lock);
1081 spin_lock_init(&card->ip_lock);
1082 spin_lock_init(&card->thread_mask_lock);
1083 card->thread_start_mask = 0;
1084 card->thread_allowed_mask = 0;
1085 card->thread_running_mask = 0;
1086 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1087 INIT_LIST_HEAD(&card->ip_list);
1088 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1089 if (!card->ip_tbd_list) {
1090 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1091 return -ENOMEM;
1092 }
1093 INIT_LIST_HEAD(card->ip_tbd_list);
1094 INIT_LIST_HEAD(&card->cmd_waiter_list);
1095 init_waitqueue_head(&card->wait_q);
1096 /* intial options */
1097 qeth_set_intial_options(card);
1098 /* IP address takeover */
1099 INIT_LIST_HEAD(&card->ipato.entries);
1100 card->ipato.enabled = 0;
1101 card->ipato.invert4 = 0;
1102 card->ipato.invert6 = 0;
1103 /* init QDIO stuff */
1104 qeth_init_qdio_info(card);
1105 return 0;
1106 }
1107
1108 static int
1109 is_1920_device (struct qeth_card *card)
1110 {
1111 int single_queue = 0;
1112 struct ccw_device *ccwdev;
1113 struct channelPath_dsc {
1114 u8 flags;
1115 u8 lsn;
1116 u8 desc;
1117 u8 chpid;
1118 u8 swla;
1119 u8 zeroes;
1120 u8 chla;
1121 u8 chpp;
1122 } *chp_dsc;
1123
1124 QETH_DBF_TEXT(setup, 2, "chk_1920");
1125
1126 ccwdev = card->data.ccwdev;
1127 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1128 if (chp_dsc != NULL) {
1129 /* CHPP field bit 6 == 1 -> single queue */
1130 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1131 kfree(chp_dsc);
1132 }
1133 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1134 return single_queue;
1135 }
1136
1137 static int
1138 qeth_determine_card_type(struct qeth_card *card)
1139 {
1140 int i = 0;
1141
1142 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1143
1144 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1145 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1146 while (known_devices[i][4]) {
1147 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1148 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1149 card->info.type = known_devices[i][4];
1150 card->qdio.no_out_queues = known_devices[i][8];
1151 card->info.is_multicast_different = known_devices[i][9];
1152 if (is_1920_device(card)) {
1153 PRINT_INFO("Priority Queueing not able "
1154 "due to hardware limitations!\n");
1155 card->qdio.no_out_queues = 1;
1156 card->qdio.default_out_queue = 0;
1157 }
1158 return 0;
1159 }
1160 i++;
1161 }
1162 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1163 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1164 return -ENOENT;
1165 }
1166
1167 static int
1168 qeth_probe_device(struct ccwgroup_device *gdev)
1169 {
1170 struct qeth_card *card;
1171 struct device *dev;
1172 unsigned long flags;
1173 int rc;
1174
1175 QETH_DBF_TEXT(setup, 2, "probedev");
1176
1177 dev = &gdev->dev;
1178 if (!get_device(dev))
1179 return -ENODEV;
1180
1181 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1182
1183 card = qeth_alloc_card();
1184 if (!card) {
1185 put_device(dev);
1186 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1187 return -ENOMEM;
1188 }
1189 card->read.ccwdev = gdev->cdev[0];
1190 card->write.ccwdev = gdev->cdev[1];
1191 card->data.ccwdev = gdev->cdev[2];
1192 gdev->dev.driver_data = card;
1193 card->gdev = gdev;
1194 gdev->cdev[0]->handler = qeth_irq;
1195 gdev->cdev[1]->handler = qeth_irq;
1196 gdev->cdev[2]->handler = qeth_irq;
1197
1198 if ((rc = qeth_determine_card_type(card))){
1199 PRINT_WARN("%s: not a valid card type\n", __func__);
1200 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1201 put_device(dev);
1202 qeth_free_card(card);
1203 return rc;
1204 }
1205 if ((rc = qeth_setup_card(card))){
1206 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1207 put_device(dev);
1208 qeth_free_card(card);
1209 return rc;
1210 }
1211 rc = qeth_create_device_attributes(dev);
1212 if (rc) {
1213 put_device(dev);
1214 qeth_free_card(card);
1215 return rc;
1216 }
1217 /* insert into our internal list */
1218 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1219 list_add_tail(&card->list, &qeth_card_list.list);
1220 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1221 return rc;
1222 }
1223
1224
1225 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1226 int *length)
1227 {
1228 struct ciw *ciw;
1229 char *rcd_buf;
1230 int ret;
1231 struct qeth_channel *channel = &card->data;
1232 unsigned long flags;
1233
1234 /*
1235 * scan for RCD command in extended SenseID data
1236 */
1237 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1238 if (!ciw || ciw->cmd == 0)
1239 return -EOPNOTSUPP;
1240 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1241 if (!rcd_buf)
1242 return -ENOMEM;
1243
1244 channel->ccw.cmd_code = ciw->cmd;
1245 channel->ccw.cda = (__u32) __pa (rcd_buf);
1246 channel->ccw.count = ciw->count;
1247 channel->ccw.flags = CCW_FLAG_SLI;
1248 channel->state = CH_STATE_RCD;
1249 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1250 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1251 QETH_RCD_PARM, LPM_ANYPATH, 0,
1252 QETH_RCD_TIMEOUT);
1253 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1254 if (!ret)
1255 wait_event(card->wait_q,
1256 (channel->state == CH_STATE_RCD_DONE ||
1257 channel->state == CH_STATE_DOWN));
1258 if (channel->state == CH_STATE_DOWN)
1259 ret = -EIO;
1260 else
1261 channel->state = CH_STATE_DOWN;
1262 if (ret) {
1263 kfree(rcd_buf);
1264 *buffer = NULL;
1265 *length = 0;
1266 } else {
1267 *length = ciw->count;
1268 *buffer = rcd_buf;
1269 }
1270 return ret;
1271 }
1272
1273 static int
1274 qeth_get_unitaddr(struct qeth_card *card)
1275 {
1276 int length;
1277 char *prcd;
1278 int rc;
1279
1280 QETH_DBF_TEXT(setup, 2, "getunit");
1281 rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1282 if (rc) {
1283 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1284 CARD_DDEV_ID(card), rc);
1285 return rc;
1286 }
1287 card->info.chpid = prcd[30];
1288 card->info.unit_addr2 = prcd[31];
1289 card->info.cula = prcd[63];
1290 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1291 (prcd[0x11] == _ascebc['M']));
1292 kfree(prcd);
1293 return 0;
1294 }
1295
1296 static void
1297 qeth_init_tokens(struct qeth_card *card)
1298 {
1299 card->token.issuer_rm_w = 0x00010103UL;
1300 card->token.cm_filter_w = 0x00010108UL;
1301 card->token.cm_connection_w = 0x0001010aUL;
1302 card->token.ulp_filter_w = 0x0001010bUL;
1303 card->token.ulp_connection_w = 0x0001010dUL;
1304 }
1305
1306 static inline __u16
1307 raw_devno_from_bus_id(char *id)
1308 {
1309 id += (strlen(id) - 4);
1310 return (__u16) simple_strtoul(id, &id, 16);
1311 }
1312 /**
1313 * setup channel
1314 */
1315 static void
1316 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1317 {
1318 struct qeth_card *card;
1319
1320 QETH_DBF_TEXT(trace, 4, "setupccw");
1321 card = CARD_FROM_CDEV(channel->ccwdev);
1322 if (channel == &card->read)
1323 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1324 else
1325 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1326 channel->ccw.count = len;
1327 channel->ccw.cda = (__u32) __pa(iob);
1328 }
1329
1330 /**
1331 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1332 */
1333 static struct qeth_cmd_buffer *
1334 __qeth_get_buffer(struct qeth_channel *channel)
1335 {
1336 __u8 index;
1337
1338 QETH_DBF_TEXT(trace, 6, "getbuff");
1339 index = channel->io_buf_no;
1340 do {
1341 if (channel->iob[index].state == BUF_STATE_FREE) {
1342 channel->iob[index].state = BUF_STATE_LOCKED;
1343 channel->io_buf_no = (channel->io_buf_no + 1) %
1344 QETH_CMD_BUFFER_NO;
1345 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1346 return channel->iob + index;
1347 }
1348 index = (index + 1) % QETH_CMD_BUFFER_NO;
1349 } while(index != channel->io_buf_no);
1350
1351 return NULL;
1352 }
1353
1354 /**
1355 * release command buffer
1356 */
1357 static void
1358 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1359 {
1360 unsigned long flags;
1361
1362 QETH_DBF_TEXT(trace, 6, "relbuff");
1363 spin_lock_irqsave(&channel->iob_lock, flags);
1364 memset(iob->data, 0, QETH_BUFSIZE);
1365 iob->state = BUF_STATE_FREE;
1366 iob->callback = qeth_send_control_data_cb;
1367 iob->rc = 0;
1368 spin_unlock_irqrestore(&channel->iob_lock, flags);
1369 }
1370
1371 static struct qeth_cmd_buffer *
1372 qeth_get_buffer(struct qeth_channel *channel)
1373 {
1374 struct qeth_cmd_buffer *buffer = NULL;
1375 unsigned long flags;
1376
1377 spin_lock_irqsave(&channel->iob_lock, flags);
1378 buffer = __qeth_get_buffer(channel);
1379 spin_unlock_irqrestore(&channel->iob_lock, flags);
1380 return buffer;
1381 }
1382
1383 static struct qeth_cmd_buffer *
1384 qeth_wait_for_buffer(struct qeth_channel *channel)
1385 {
1386 struct qeth_cmd_buffer *buffer;
1387 wait_event(channel->wait_q,
1388 ((buffer = qeth_get_buffer(channel)) != NULL));
1389 return buffer;
1390 }
1391
1392 static void
1393 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1394 {
1395 int cnt;
1396
1397 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1398 qeth_release_buffer(channel,&channel->iob[cnt]);
1399 channel->buf_no = 0;
1400 channel->io_buf_no = 0;
1401 }
1402
1403 /**
1404 * start IDX for read and write channel
1405 */
1406 static int
1407 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1408 void (*idx_reply_cb)(struct qeth_channel *,
1409 struct qeth_cmd_buffer *))
1410 {
1411 struct qeth_cmd_buffer *iob;
1412 unsigned long flags;
1413 int rc;
1414 struct qeth_card *card;
1415
1416 QETH_DBF_TEXT(setup, 2, "idxanswr");
1417 card = CARD_FROM_CDEV(channel->ccwdev);
1418 iob = qeth_get_buffer(channel);
1419 iob->callback = idx_reply_cb;
1420 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1421 channel->ccw.count = QETH_BUFSIZE;
1422 channel->ccw.cda = (__u32) __pa(iob->data);
1423
1424 wait_event(card->wait_q,
1425 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1426 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1427 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1428 rc = ccw_device_start(channel->ccwdev,
1429 &channel->ccw,(addr_t) iob, 0, 0);
1430 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1431
1432 if (rc) {
1433 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1434 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1435 atomic_set(&channel->irq_pending, 0);
1436 wake_up(&card->wait_q);
1437 return rc;
1438 }
1439 rc = wait_event_interruptible_timeout(card->wait_q,
1440 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1441 if (rc == -ERESTARTSYS)
1442 return rc;
1443 if (channel->state != CH_STATE_UP){
1444 rc = -ETIME;
1445 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1446 qeth_clear_cmd_buffers(channel);
1447 } else
1448 rc = 0;
1449 return rc;
1450 }
1451
1452 static int
1453 qeth_idx_activate_channel(struct qeth_channel *channel,
1454 void (*idx_reply_cb)(struct qeth_channel *,
1455 struct qeth_cmd_buffer *))
1456 {
1457 struct qeth_card *card;
1458 struct qeth_cmd_buffer *iob;
1459 unsigned long flags;
1460 __u16 temp;
1461 int rc;
1462
1463 card = CARD_FROM_CDEV(channel->ccwdev);
1464
1465 QETH_DBF_TEXT(setup, 2, "idxactch");
1466
1467 iob = qeth_get_buffer(channel);
1468 iob->callback = idx_reply_cb;
1469 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1470 channel->ccw.count = IDX_ACTIVATE_SIZE;
1471 channel->ccw.cda = (__u32) __pa(iob->data);
1472 if (channel == &card->write) {
1473 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1474 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1475 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1476 card->seqno.trans_hdr++;
1477 } else {
1478 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1479 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1480 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1481 }
1482 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1483 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1484 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1485 &card->info.func_level,sizeof(__u16));
1486 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1487 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1488 temp = (card->info.cula << 8) + card->info.unit_addr2;
1489 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1490
1491 wait_event(card->wait_q,
1492 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1493 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1494 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1495 rc = ccw_device_start(channel->ccwdev,
1496 &channel->ccw,(addr_t) iob, 0, 0);
1497 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1498
1499 if (rc) {
1500 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1501 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1502 atomic_set(&channel->irq_pending, 0);
1503 wake_up(&card->wait_q);
1504 return rc;
1505 }
1506 rc = wait_event_interruptible_timeout(card->wait_q,
1507 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1508 if (rc == -ERESTARTSYS)
1509 return rc;
1510 if (channel->state != CH_STATE_ACTIVATING) {
1511 PRINT_WARN("qeth: IDX activate timed out!\n");
1512 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1513 qeth_clear_cmd_buffers(channel);
1514 return -ETIME;
1515 }
1516 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1517 }
1518
1519 static int
1520 qeth_peer_func_level(int level)
1521 {
1522 if ((level & 0xff) == 8)
1523 return (level & 0xff) + 0x400;
1524 if (((level >> 8) & 3) == 1)
1525 return (level & 0xff) + 0x200;
1526 return level;
1527 }
1528
1529 static void
1530 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1531 {
1532 struct qeth_card *card;
1533 __u16 temp;
1534
1535 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1536
1537 if (channel->state == CH_STATE_DOWN) {
1538 channel->state = CH_STATE_ACTIVATING;
1539 goto out;
1540 }
1541 card = CARD_FROM_CDEV(channel->ccwdev);
1542
1543 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1544 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1545 PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1546 "adapter exclusively used by another host\n",
1547 CARD_WDEV_ID(card));
1548 else
1549 PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1550 "negative reply\n", CARD_WDEV_ID(card));
1551 goto out;
1552 }
1553 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1554 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1555 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1556 "function level mismatch "
1557 "(sent: 0x%x, received: 0x%x)\n",
1558 CARD_WDEV_ID(card), card->info.func_level, temp);
1559 goto out;
1560 }
1561 channel->state = CH_STATE_UP;
1562 out:
1563 qeth_release_buffer(channel, iob);
1564 }
1565
1566 static int
1567 qeth_check_idx_response(unsigned char *buffer)
1568 {
1569 if (!buffer)
1570 return 0;
1571
1572 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1573 if ((buffer[2] & 0xc0) == 0xc0) {
1574 PRINT_WARN("received an IDX TERMINATE "
1575 "with cause code 0x%02x%s\n",
1576 buffer[4],
1577 ((buffer[4] == 0x22) ?
1578 " -- try another portname" : ""));
1579 QETH_DBF_TEXT(trace, 2, "ckidxres");
1580 QETH_DBF_TEXT(trace, 2, " idxterm");
1581 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1582 return -EIO;
1583 }
1584 return 0;
1585 }
1586
1587 static void
1588 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1589 {
1590 struct qeth_card *card;
1591 __u16 temp;
1592
1593 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1594 if (channel->state == CH_STATE_DOWN) {
1595 channel->state = CH_STATE_ACTIVATING;
1596 goto out;
1597 }
1598
1599 card = CARD_FROM_CDEV(channel->ccwdev);
1600 if (qeth_check_idx_response(iob->data)) {
1601 goto out;
1602 }
1603 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1604 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1605 PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1606 "adapter exclusively used by another host\n",
1607 CARD_RDEV_ID(card));
1608 else
1609 PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1610 "negative reply\n", CARD_RDEV_ID(card));
1611 goto out;
1612 }
1613
1614 /**
1615 * temporary fix for microcode bug
1616 * to revert it,replace OR by AND
1617 */
1618 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1619 (card->info.type == QETH_CARD_TYPE_OSAE) )
1620 card->info.portname_required = 1;
1621
1622 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1623 if (temp != qeth_peer_func_level(card->info.func_level)) {
1624 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1625 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1626 CARD_RDEV_ID(card), card->info.func_level, temp);
1627 goto out;
1628 }
1629 memcpy(&card->token.issuer_rm_r,
1630 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1631 QETH_MPC_TOKEN_LENGTH);
1632 memcpy(&card->info.mcl_level[0],
1633 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1634 channel->state = CH_STATE_UP;
1635 out:
1636 qeth_release_buffer(channel,iob);
1637 }
1638
1639 static int
1640 qeth_issue_next_read(struct qeth_card *card)
1641 {
1642 int rc;
1643 struct qeth_cmd_buffer *iob;
1644
1645 QETH_DBF_TEXT(trace,5,"issnxrd");
1646 if (card->read.state != CH_STATE_UP)
1647 return -EIO;
1648 iob = qeth_get_buffer(&card->read);
1649 if (!iob) {
1650 PRINT_WARN("issue_next_read failed: no iob available!\n");
1651 return -ENOMEM;
1652 }
1653 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1654 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1655 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1656 (addr_t) iob, 0, 0);
1657 if (rc) {
1658 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1659 atomic_set(&card->read.irq_pending, 0);
1660 qeth_schedule_recovery(card);
1661 wake_up(&card->wait_q);
1662 }
1663 return rc;
1664 }
1665
1666 static struct qeth_reply *
1667 qeth_alloc_reply(struct qeth_card *card)
1668 {
1669 struct qeth_reply *reply;
1670
1671 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1672 if (reply){
1673 atomic_set(&reply->refcnt, 1);
1674 atomic_set(&reply->received, 0);
1675 reply->card = card;
1676 };
1677 return reply;
1678 }
1679
1680 static void
1681 qeth_get_reply(struct qeth_reply *reply)
1682 {
1683 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1684 atomic_inc(&reply->refcnt);
1685 }
1686
1687 static void
1688 qeth_put_reply(struct qeth_reply *reply)
1689 {
1690 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1691 if (atomic_dec_and_test(&reply->refcnt))
1692 kfree(reply);
1693 }
1694
1695 static void
1696 qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, struct qeth_card *card)
1697 {
1698 int rc;
1699 int com;
1700 char * ipa_name;
1701
1702 com = cmd->hdr.command;
1703 rc = cmd->hdr.return_code;
1704 ipa_name = qeth_get_ipa_cmd_name(com);
1705
1706 PRINT_ERR("%s(x%X) for %s returned x%X \"%s\"\n", ipa_name, com,
1707 QETH_CARD_IFNAME(card), rc, qeth_get_ipa_msg(rc));
1708 }
1709
1710 static struct qeth_ipa_cmd *
1711 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1712 {
1713 struct qeth_ipa_cmd *cmd = NULL;
1714
1715 QETH_DBF_TEXT(trace,5,"chkipad");
1716 if (IS_IPA(iob->data)){
1717 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1718 if (IS_IPA_REPLY(cmd)) {
1719 if (cmd->hdr.return_code)
1720 qeth_issue_ipa_msg(cmd, card);
1721 return cmd;
1722 }
1723 else {
1724 switch (cmd->hdr.command) {
1725 case IPA_CMD_STOPLAN:
1726 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1727 "there is a network problem or "
1728 "someone pulled the cable or "
1729 "disabled the port.\n",
1730 QETH_CARD_IFNAME(card),
1731 card->info.chpid);
1732 card->lan_online = 0;
1733 if (card->dev && netif_carrier_ok(card->dev))
1734 netif_carrier_off(card->dev);
1735 return NULL;
1736 case IPA_CMD_STARTLAN:
1737 PRINT_INFO("Link reestablished on %s "
1738 "(CHPID 0x%X). Scheduling "
1739 "IP address reset.\n",
1740 QETH_CARD_IFNAME(card),
1741 card->info.chpid);
1742 netif_carrier_on(card->dev);
1743 qeth_schedule_recovery(card);
1744 return NULL;
1745 case IPA_CMD_MODCCID:
1746 return cmd;
1747 case IPA_CMD_REGISTER_LOCAL_ADDR:
1748 QETH_DBF_TEXT(trace,3, "irla");
1749 break;
1750 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1751 QETH_DBF_TEXT(trace,3, "urla");
1752 break;
1753 default:
1754 PRINT_WARN("Received data is IPA "
1755 "but not a reply!\n");
1756 break;
1757 }
1758 }
1759 }
1760 return cmd;
1761 }
1762
1763 /**
1764 * wake all waiting ipa commands
1765 */
1766 static void
1767 qeth_clear_ipacmd_list(struct qeth_card *card)
1768 {
1769 struct qeth_reply *reply, *r;
1770 unsigned long flags;
1771
1772 QETH_DBF_TEXT(trace, 4, "clipalst");
1773
1774 spin_lock_irqsave(&card->lock, flags);
1775 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1776 qeth_get_reply(reply);
1777 reply->rc = -EIO;
1778 atomic_inc(&reply->received);
1779 list_del_init(&reply->list);
1780 wake_up(&reply->wait_q);
1781 qeth_put_reply(reply);
1782 }
1783 spin_unlock_irqrestore(&card->lock, flags);
1784 }
1785
1786 static void
1787 qeth_send_control_data_cb(struct qeth_channel *channel,
1788 struct qeth_cmd_buffer *iob)
1789 {
1790 struct qeth_card *card;
1791 struct qeth_reply *reply, *r;
1792 struct qeth_ipa_cmd *cmd;
1793 unsigned long flags;
1794 int keep_reply;
1795
1796 QETH_DBF_TEXT(trace,4,"sndctlcb");
1797
1798 card = CARD_FROM_CDEV(channel->ccwdev);
1799 if (qeth_check_idx_response(iob->data)) {
1800 qeth_clear_ipacmd_list(card);
1801 qeth_schedule_recovery(card);
1802 goto out;
1803 }
1804
1805 cmd = qeth_check_ipa_data(card, iob);
1806 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1807 goto out;
1808 /*in case of OSN : check if cmd is set */
1809 if (card->info.type == QETH_CARD_TYPE_OSN &&
1810 cmd &&
1811 cmd->hdr.command != IPA_CMD_STARTLAN &&
1812 card->osn_info.assist_cb != NULL) {
1813 card->osn_info.assist_cb(card->dev, cmd);
1814 goto out;
1815 }
1816
1817 spin_lock_irqsave(&card->lock, flags);
1818 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1819 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1820 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1821 qeth_get_reply(reply);
1822 list_del_init(&reply->list);
1823 spin_unlock_irqrestore(&card->lock, flags);
1824 keep_reply = 0;
1825 if (reply->callback != NULL) {
1826 if (cmd) {
1827 reply->offset = (__u16)((char*)cmd -
1828 (char *)iob->data);
1829 keep_reply = reply->callback(card,
1830 reply,
1831 (unsigned long)cmd);
1832 } else
1833 keep_reply = reply->callback(card,
1834 reply,
1835 (unsigned long)iob);
1836 }
1837 if (cmd)
1838 reply->rc = (u16) cmd->hdr.return_code;
1839 else if (iob->rc)
1840 reply->rc = iob->rc;
1841 if (keep_reply) {
1842 spin_lock_irqsave(&card->lock, flags);
1843 list_add_tail(&reply->list,
1844 &card->cmd_waiter_list);
1845 spin_unlock_irqrestore(&card->lock, flags);
1846 } else {
1847 atomic_inc(&reply->received);
1848 wake_up(&reply->wait_q);
1849 }
1850 qeth_put_reply(reply);
1851 goto out;
1852 }
1853 }
1854 spin_unlock_irqrestore(&card->lock, flags);
1855 out:
1856 memcpy(&card->seqno.pdu_hdr_ack,
1857 QETH_PDU_HEADER_SEQ_NO(iob->data),
1858 QETH_SEQ_NO_LENGTH);
1859 qeth_release_buffer(channel,iob);
1860 }
1861
1862 static void
1863 qeth_prepare_control_data(struct qeth_card *card, int len,
1864 struct qeth_cmd_buffer *iob)
1865 {
1866 qeth_setup_ccw(&card->write,iob->data,len);
1867 iob->callback = qeth_release_buffer;
1868
1869 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1870 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1871 card->seqno.trans_hdr++;
1872 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1873 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1874 card->seqno.pdu_hdr++;
1875 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1876 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1877 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1878 }
1879
1880 static int
1881 qeth_send_control_data(struct qeth_card *card, int len,
1882 struct qeth_cmd_buffer *iob,
1883 int (*reply_cb)
1884 (struct qeth_card *, struct qeth_reply*, unsigned long),
1885 void *reply_param)
1886
1887 {
1888 int rc;
1889 unsigned long flags;
1890 struct qeth_reply *reply = NULL;
1891 unsigned long timeout;
1892
1893 QETH_DBF_TEXT(trace, 2, "sendctl");
1894
1895 reply = qeth_alloc_reply(card);
1896 if (!reply) {
1897 PRINT_WARN("Could no alloc qeth_reply!\n");
1898 return -ENOMEM;
1899 }
1900 reply->callback = reply_cb;
1901 reply->param = reply_param;
1902 if (card->state == CARD_STATE_DOWN)
1903 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1904 else
1905 reply->seqno = card->seqno.ipa++;
1906 init_waitqueue_head(&reply->wait_q);
1907 spin_lock_irqsave(&card->lock, flags);
1908 list_add_tail(&reply->list, &card->cmd_waiter_list);
1909 spin_unlock_irqrestore(&card->lock, flags);
1910 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1911
1912 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1913 qeth_prepare_control_data(card, len, iob);
1914
1915 if (IS_IPA(iob->data))
1916 timeout = jiffies + QETH_IPA_TIMEOUT;
1917 else
1918 timeout = jiffies + QETH_TIMEOUT;
1919
1920 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1921 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1922 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1923 (addr_t) iob, 0, 0);
1924 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1925 if (rc){
1926 PRINT_WARN("qeth_send_control_data: "
1927 "ccw_device_start rc = %i\n", rc);
1928 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1929 spin_lock_irqsave(&card->lock, flags);
1930 list_del_init(&reply->list);
1931 qeth_put_reply(reply);
1932 spin_unlock_irqrestore(&card->lock, flags);
1933 qeth_release_buffer(iob->channel, iob);
1934 atomic_set(&card->write.irq_pending, 0);
1935 wake_up(&card->wait_q);
1936 return rc;
1937 }
1938 while (!atomic_read(&reply->received)) {
1939 if (time_after(jiffies, timeout)) {
1940 spin_lock_irqsave(&reply->card->lock, flags);
1941 list_del_init(&reply->list);
1942 spin_unlock_irqrestore(&reply->card->lock, flags);
1943 reply->rc = -ETIME;
1944 atomic_inc(&reply->received);
1945 wake_up(&reply->wait_q);
1946 }
1947 cpu_relax();
1948 };
1949 rc = reply->rc;
1950 qeth_put_reply(reply);
1951 return rc;
1952 }
1953
1954 static int
1955 qeth_osn_send_control_data(struct qeth_card *card, int len,
1956 struct qeth_cmd_buffer *iob)
1957 {
1958 unsigned long flags;
1959 int rc = 0;
1960
1961 QETH_DBF_TEXT(trace, 5, "osndctrd");
1962
1963 wait_event(card->wait_q,
1964 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1965 qeth_prepare_control_data(card, len, iob);
1966 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1967 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1968 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1969 (addr_t) iob, 0, 0);
1970 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1971 if (rc){
1972 PRINT_WARN("qeth_osn_send_control_data: "
1973 "ccw_device_start rc = %i\n", rc);
1974 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1975 qeth_release_buffer(iob->channel, iob);
1976 atomic_set(&card->write.irq_pending, 0);
1977 wake_up(&card->wait_q);
1978 }
1979 return rc;
1980 }
1981
1982 static inline void
1983 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1984 char prot_type)
1985 {
1986 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1987 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1988 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1989 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1990 }
1991
1992 static int
1993 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1994 int data_len)
1995 {
1996 u16 s1, s2;
1997
1998 QETH_DBF_TEXT(trace,4,"osndipa");
1999
2000 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
2001 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
2002 s2 = (u16)data_len;
2003 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
2004 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
2005 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
2006 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
2007 return qeth_osn_send_control_data(card, s1, iob);
2008 }
2009
2010 static int
2011 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2012 int (*reply_cb)
2013 (struct qeth_card *,struct qeth_reply*, unsigned long),
2014 void *reply_param)
2015 {
2016 int rc;
2017 char prot_type;
2018
2019 QETH_DBF_TEXT(trace,4,"sendipa");
2020
2021 if (card->options.layer2)
2022 if (card->info.type == QETH_CARD_TYPE_OSN)
2023 prot_type = QETH_PROT_OSN2;
2024 else
2025 prot_type = QETH_PROT_LAYER2;
2026 else
2027 prot_type = QETH_PROT_TCPIP;
2028 qeth_prepare_ipa_cmd(card,iob,prot_type);
2029 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
2030 reply_cb, reply_param);
2031 return rc;
2032 }
2033
2034
2035 static int
2036 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2037 unsigned long data)
2038 {
2039 struct qeth_cmd_buffer *iob;
2040
2041 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2042
2043 iob = (struct qeth_cmd_buffer *) data;
2044 memcpy(&card->token.cm_filter_r,
2045 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2046 QETH_MPC_TOKEN_LENGTH);
2047 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2048 return 0;
2049 }
2050
2051 static int
2052 qeth_cm_enable(struct qeth_card *card)
2053 {
2054 int rc;
2055 struct qeth_cmd_buffer *iob;
2056
2057 QETH_DBF_TEXT(setup,2,"cmenable");
2058
2059 iob = qeth_wait_for_buffer(&card->write);
2060 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2061 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2062 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2063 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2064 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2065
2066 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2067 qeth_cm_enable_cb, NULL);
2068 return rc;
2069 }
2070
2071 static int
2072 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2073 unsigned long data)
2074 {
2075
2076 struct qeth_cmd_buffer *iob;
2077
2078 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2079
2080 iob = (struct qeth_cmd_buffer *) data;
2081 memcpy(&card->token.cm_connection_r,
2082 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2083 QETH_MPC_TOKEN_LENGTH);
2084 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2085 return 0;
2086 }
2087
2088 static int
2089 qeth_cm_setup(struct qeth_card *card)
2090 {
2091 int rc;
2092 struct qeth_cmd_buffer *iob;
2093
2094 QETH_DBF_TEXT(setup,2,"cmsetup");
2095
2096 iob = qeth_wait_for_buffer(&card->write);
2097 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2098 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2099 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2100 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2101 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2102 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2103 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2104 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2105 qeth_cm_setup_cb, NULL);
2106 return rc;
2107
2108 }
2109
2110 static int
2111 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2112 unsigned long data)
2113 {
2114
2115 __u16 mtu, framesize;
2116 __u16 len;
2117 __u8 link_type;
2118 struct qeth_cmd_buffer *iob;
2119
2120 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2121
2122 iob = (struct qeth_cmd_buffer *) data;
2123 memcpy(&card->token.ulp_filter_r,
2124 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2125 QETH_MPC_TOKEN_LENGTH);
2126 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2127 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2128 mtu = qeth_get_mtu_outof_framesize(framesize);
2129 if (!mtu) {
2130 iob->rc = -EINVAL;
2131 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2132 return 0;
2133 }
2134 card->info.max_mtu = mtu;
2135 card->info.initial_mtu = mtu;
2136 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2137 } else {
2138 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2139 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2140 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2141 }
2142
2143 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2144 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2145 memcpy(&link_type,
2146 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2147 card->info.link_type = link_type;
2148 } else
2149 card->info.link_type = 0;
2150 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2151 return 0;
2152 }
2153
2154 static int
2155 qeth_ulp_enable(struct qeth_card *card)
2156 {
2157 int rc;
2158 char prot_type;
2159 struct qeth_cmd_buffer *iob;
2160
2161 /*FIXME: trace view callbacks*/
2162 QETH_DBF_TEXT(setup,2,"ulpenabl");
2163
2164 iob = qeth_wait_for_buffer(&card->write);
2165 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2166
2167 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2168 (__u8) card->info.portno;
2169 if (card->options.layer2)
2170 if (card->info.type == QETH_CARD_TYPE_OSN)
2171 prot_type = QETH_PROT_OSN2;
2172 else
2173 prot_type = QETH_PROT_LAYER2;
2174 else
2175 prot_type = QETH_PROT_TCPIP;
2176
2177 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2178 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2179 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2180 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2181 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2182 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2183 card->info.portname, 9);
2184 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2185 qeth_ulp_enable_cb, NULL);
2186 return rc;
2187
2188 }
2189
2190 static int
2191 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2192 unsigned long data)
2193 {
2194 struct qeth_cmd_buffer *iob;
2195
2196 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2197
2198 iob = (struct qeth_cmd_buffer *) data;
2199 memcpy(&card->token.ulp_connection_r,
2200 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2201 QETH_MPC_TOKEN_LENGTH);
2202 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2203 return 0;
2204 }
2205
2206 static int
2207 qeth_ulp_setup(struct qeth_card *card)
2208 {
2209 int rc;
2210 __u16 temp;
2211 struct qeth_cmd_buffer *iob;
2212 struct ccw_dev_id dev_id;
2213
2214 QETH_DBF_TEXT(setup,2,"ulpsetup");
2215
2216 iob = qeth_wait_for_buffer(&card->write);
2217 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2218
2219 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2220 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2221 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2222 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2223 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2224 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2225
2226 ccw_device_get_id(CARD_DDEV(card), &dev_id);
2227 memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2228 temp = (card->info.cula << 8) + card->info.unit_addr2;
2229 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2230 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2231 qeth_ulp_setup_cb, NULL);
2232 return rc;
2233 }
2234
2235 static inline int
2236 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2237 unsigned int siga_error, const char *dbftext)
2238 {
2239 if (qdio_error || siga_error) {
2240 QETH_DBF_TEXT(trace, 2, dbftext);
2241 QETH_DBF_TEXT(qerr, 2, dbftext);
2242 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2243 buf->element[15].flags & 0xff);
2244 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2245 buf->element[14].flags & 0xff);
2246 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2247 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2248 return 1;
2249 }
2250 return 0;
2251 }
2252
2253 static struct sk_buff *
2254 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2255 {
2256 struct sk_buff* skb;
2257 int add_len;
2258
2259 add_len = 0;
2260 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2261 add_len = sizeof(struct qeth_hdr);
2262 #ifdef CONFIG_QETH_VLAN
2263 else
2264 add_len = VLAN_HLEN;
2265 #endif
2266 skb = dev_alloc_skb(length + add_len);
2267 if (skb && add_len)
2268 skb_reserve(skb, add_len);
2269 return skb;
2270 }
2271
2272 static inline int
2273 qeth_create_skb_frag(struct qdio_buffer_element *element,
2274 struct sk_buff **pskb,
2275 int offset, int *pfrag, int data_len)
2276 {
2277 struct page *page = virt_to_page(element->addr);
2278 if (*pfrag == 0) {
2279 /* the upper protocol layers assume that there is data in the
2280 * skb itself. Copy a small amount (64 bytes) to make them
2281 * happy. */
2282 *pskb = dev_alloc_skb(64 + QETH_FAKE_LL_LEN_ETH);
2283 if (!(*pskb))
2284 return -ENOMEM;
2285 skb_reserve(*pskb, QETH_FAKE_LL_LEN_ETH);
2286 if (data_len <= 64) {
2287 memcpy(skb_put(*pskb, data_len), element->addr + offset,
2288 data_len);
2289 } else {
2290 get_page(page);
2291 memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
2292 skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
2293 data_len - 64);
2294 (*pskb)->data_len += data_len - 64;
2295 (*pskb)->len += data_len - 64;
2296 (*pskb)->truesize += data_len - 64;
2297 }
2298 } else {
2299 get_page(page);
2300 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
2301 (*pskb)->data_len += data_len;
2302 (*pskb)->len += data_len;
2303 (*pskb)->truesize += data_len;
2304 }
2305 (*pfrag)++;
2306 return 0;
2307 }
2308
2309 static inline struct qeth_buffer_pool_entry *
2310 qeth_find_free_buffer_pool_entry(struct qeth_card *card)
2311 {
2312 struct list_head *plh;
2313 struct qeth_buffer_pool_entry *entry;
2314 int i, free;
2315 struct page *page;
2316
2317 if (list_empty(&card->qdio.in_buf_pool.entry_list))
2318 return NULL;
2319
2320 list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2321 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2322 free = 1;
2323 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2324 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2325 free = 0;
2326 break;
2327 }
2328 }
2329 if (free) {
2330 list_del_init(&entry->list);
2331 return entry;
2332 }
2333 }
2334
2335 /* no free buffer in pool so take first one and swap pages */
2336 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2337 struct qeth_buffer_pool_entry, list);
2338 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2339 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2340 page = alloc_page(GFP_ATOMIC|GFP_DMA);
2341 if (!page) {
2342 return NULL;
2343 } else {
2344 free_page((unsigned long)entry->elements[i]);
2345 entry->elements[i] = page_address(page);
2346 if (card->options.performance_stats)
2347 card->perf_stats.sg_alloc_page_rx++;
2348 }
2349 }
2350 }
2351 list_del_init(&entry->list);
2352 return entry;
2353 }
2354
2355 static struct sk_buff *
2356 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2357 struct qdio_buffer_element **__element, int *__offset,
2358 struct qeth_hdr **hdr)
2359 {
2360 struct qdio_buffer_element *element = *__element;
2361 int offset = *__offset;
2362 struct sk_buff *skb = NULL;
2363 int skb_len;
2364 void *data_ptr;
2365 int data_len;
2366 int use_rx_sg = 0;
2367 int frag = 0;
2368
2369 QETH_DBF_TEXT(trace,6,"nextskb");
2370 /* qeth_hdr must not cross element boundaries */
2371 if (element->length < offset + sizeof(struct qeth_hdr)){
2372 if (qeth_is_last_sbale(element))
2373 return NULL;
2374 element++;
2375 offset = 0;
2376 if (element->length < sizeof(struct qeth_hdr))
2377 return NULL;
2378 }
2379 *hdr = element->addr + offset;
2380
2381 offset += sizeof(struct qeth_hdr);
2382 if (card->options.layer2)
2383 if (card->info.type == QETH_CARD_TYPE_OSN)
2384 skb_len = (*hdr)->hdr.osn.pdu_length;
2385 else
2386 skb_len = (*hdr)->hdr.l2.pkt_length;
2387 else
2388 skb_len = (*hdr)->hdr.l3.length;
2389
2390 if (!skb_len)
2391 return NULL;
2392 if ((skb_len >= card->options.rx_sg_cb) &&
2393 (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
2394 (!atomic_read(&card->force_alloc_skb))) {
2395 use_rx_sg = 1;
2396 } else {
2397 if (card->options.fake_ll) {
2398 if (card->dev->type == ARPHRD_IEEE802_TR) {
2399 if (!(skb = qeth_get_skb(skb_len +
2400 QETH_FAKE_LL_LEN_TR, *hdr)))
2401 goto no_mem;
2402 skb_reserve(skb, QETH_FAKE_LL_LEN_TR);
2403 } else {
2404 if (!(skb = qeth_get_skb(skb_len +
2405 QETH_FAKE_LL_LEN_ETH, *hdr)))
2406 goto no_mem;
2407 skb_reserve(skb, QETH_FAKE_LL_LEN_ETH);
2408 }
2409 } else {
2410 skb = qeth_get_skb(skb_len, *hdr);
2411 if (!skb)
2412 goto no_mem;
2413 }
2414 }
2415
2416 data_ptr = element->addr + offset;
2417 while (skb_len) {
2418 data_len = min(skb_len, (int)(element->length - offset));
2419 if (data_len) {
2420 if (use_rx_sg) {
2421 if (qeth_create_skb_frag(element, &skb, offset,
2422 &frag, data_len))
2423 goto no_mem;
2424 } else {
2425 memcpy(skb_put(skb, data_len), data_ptr,
2426 data_len);
2427 }
2428 }
2429 skb_len -= data_len;
2430 if (skb_len){
2431 if (qeth_is_last_sbale(element)){
2432 QETH_DBF_TEXT(trace,4,"unexeob");
2433 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2434 QETH_DBF_TEXT(qerr,2,"unexeob");
2435 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2436 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2437 dev_kfree_skb_any(skb);
2438 card->stats.rx_errors++;
2439 return NULL;
2440 }
2441 element++;
2442 offset = 0;
2443 data_ptr = element->addr;
2444 } else {
2445 offset += data_len;
2446 }
2447 }
2448 *__element = element;
2449 *__offset = offset;
2450 if (use_rx_sg && card->options.performance_stats) {
2451 card->perf_stats.sg_skbs_rx++;
2452 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
2453 }
2454 return skb;
2455 no_mem:
2456 if (net_ratelimit()){
2457 PRINT_WARN("No memory for packet received on %s.\n",
2458 QETH_CARD_IFNAME(card));
2459 QETH_DBF_TEXT(trace,2,"noskbmem");
2460 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2461 }
2462 card->stats.rx_dropped++;
2463 return NULL;
2464 }
2465
2466 static __be16
2467 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2468 {
2469 struct qeth_card *card;
2470 struct ethhdr *eth;
2471
2472 QETH_DBF_TEXT(trace,6,"typtrans");
2473
2474 card = (struct qeth_card *)dev->priv;
2475 #ifdef CONFIG_TR
2476 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2477 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2478 return tr_type_trans(skb,dev);
2479 #endif /* CONFIG_TR */
2480 skb_reset_mac_header(skb);
2481 skb_pull(skb, ETH_HLEN );
2482 eth = eth_hdr(skb);
2483
2484 if (*eth->h_dest & 1) {
2485 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2486 skb->pkt_type = PACKET_BROADCAST;
2487 else
2488 skb->pkt_type = PACKET_MULTICAST;
2489 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2490 skb->pkt_type = PACKET_OTHERHOST;
2491
2492 if (ntohs(eth->h_proto) >= 1536)
2493 return eth->h_proto;
2494 if (*(unsigned short *) (skb->data) == 0xFFFF)
2495 return htons(ETH_P_802_3);
2496 return htons(ETH_P_802_2);
2497 }
2498
2499 static void
2500 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2501 struct qeth_hdr *hdr)
2502 {
2503 struct trh_hdr *fake_hdr;
2504 struct trllc *fake_llc;
2505 struct iphdr *ip_hdr;
2506
2507 QETH_DBF_TEXT(trace,5,"skbfktr");
2508 skb_set_mac_header(skb, (int)-QETH_FAKE_LL_LEN_TR);
2509 /* this is a fake ethernet header */
2510 fake_hdr = tr_hdr(skb);
2511
2512 /* the destination MAC address */
2513 switch (skb->pkt_type){
2514 case PACKET_MULTICAST:
2515 switch (skb->protocol){
2516 #ifdef CONFIG_QETH_IPV6
2517 case __constant_htons(ETH_P_IPV6):
2518 ndisc_mc_map((struct in6_addr *)
2519 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2520 fake_hdr->daddr, card->dev, 0);
2521 break;
2522 #endif /* CONFIG_QETH_IPV6 */
2523 case __constant_htons(ETH_P_IP):
2524 ip_hdr = (struct iphdr *)skb->data;
2525 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2526 break;
2527 default:
2528 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2529 }
2530 break;
2531 case PACKET_BROADCAST:
2532 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2533 break;
2534 default:
2535 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2536 }
2537 /* the source MAC address */
2538 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2539 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2540 else
2541 memset(fake_hdr->saddr, 0, TR_ALEN);
2542 fake_hdr->rcf=0;
2543 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2544 fake_llc->dsap = EXTENDED_SAP;
2545 fake_llc->ssap = EXTENDED_SAP;
2546 fake_llc->llc = UI_CMD;
2547 fake_llc->protid[0] = 0;
2548 fake_llc->protid[1] = 0;
2549 fake_llc->protid[2] = 0;
2550 fake_llc->ethertype = ETH_P_IP;
2551 }
2552
2553 static void
2554 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2555 struct qeth_hdr *hdr)
2556 {
2557 struct ethhdr *fake_hdr;
2558 struct iphdr *ip_hdr;
2559
2560 QETH_DBF_TEXT(trace,5,"skbfketh");
2561 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
2562 /* this is a fake ethernet header */
2563 fake_hdr = eth_hdr(skb);
2564
2565 /* the destination MAC address */
2566 switch (skb->pkt_type){
2567 case PACKET_MULTICAST:
2568 switch (skb->protocol){
2569 #ifdef CONFIG_QETH_IPV6
2570 case __constant_htons(ETH_P_IPV6):
2571 ndisc_mc_map((struct in6_addr *)
2572 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2573 fake_hdr->h_dest, card->dev, 0);
2574 break;
2575 #endif /* CONFIG_QETH_IPV6 */
2576 case __constant_htons(ETH_P_IP):
2577 ip_hdr = (struct iphdr *)skb->data;
2578 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2579 break;
2580 default:
2581 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2582 }
2583 break;
2584 case PACKET_BROADCAST:
2585 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2586 break;
2587 default:
2588 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2589 }
2590 /* the source MAC address */
2591 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2592 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2593 else
2594 memset(fake_hdr->h_source, 0, ETH_ALEN);
2595 /* the protocol */
2596 fake_hdr->h_proto = skb->protocol;
2597 }
2598
2599 static inline void
2600 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2601 struct qeth_hdr *hdr)
2602 {
2603 if (card->dev->type == ARPHRD_IEEE802_TR)
2604 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2605 else
2606 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2607 }
2608
2609 static inline void
2610 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2611 struct qeth_hdr *hdr)
2612 {
2613 skb->pkt_type = PACKET_HOST;
2614 skb->protocol = qeth_type_trans(skb, skb->dev);
2615 if (card->options.checksum_type == NO_CHECKSUMMING)
2616 skb->ip_summed = CHECKSUM_UNNECESSARY;
2617 else
2618 skb->ip_summed = CHECKSUM_NONE;
2619 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2620 }
2621
2622 static __u16
2623 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2624 struct qeth_hdr *hdr)
2625 {
2626 unsigned short vlan_id = 0;
2627 #ifdef CONFIG_QETH_IPV6
2628 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2629 skb->pkt_type = PACKET_HOST;
2630 skb->protocol = qeth_type_trans(skb, card->dev);
2631 return 0;
2632 }
2633 #endif /* CONFIG_QETH_IPV6 */
2634 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2635 ETH_P_IP);
2636 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2637 case QETH_CAST_UNICAST:
2638 skb->pkt_type = PACKET_HOST;
2639 break;
2640 case QETH_CAST_MULTICAST:
2641 skb->pkt_type = PACKET_MULTICAST;
2642 card->stats.multicast++;
2643 break;
2644 case QETH_CAST_BROADCAST:
2645 skb->pkt_type = PACKET_BROADCAST;
2646 card->stats.multicast++;
2647 break;
2648 case QETH_CAST_ANYCAST:
2649 case QETH_CAST_NOCAST:
2650 default:
2651 skb->pkt_type = PACKET_HOST;
2652 }
2653
2654 if (hdr->hdr.l3.ext_flags &
2655 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2656 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2657 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2658 }
2659
2660 if (card->options.fake_ll)
2661 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2662 else
2663 skb_reset_mac_header(skb);
2664 skb->ip_summed = card->options.checksum_type;
2665 if (card->options.checksum_type == HW_CHECKSUMMING){
2666 if ( (hdr->hdr.l3.ext_flags &
2667 (QETH_HDR_EXT_CSUM_HDR_REQ |
2668 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2669 (QETH_HDR_EXT_CSUM_HDR_REQ |
2670 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2671 skb->ip_summed = CHECKSUM_UNNECESSARY;
2672 else
2673 skb->ip_summed = SW_CHECKSUMMING;
2674 }
2675 return vlan_id;
2676 }
2677
2678 static void
2679 qeth_process_inbound_buffer(struct qeth_card *card,
2680 struct qeth_qdio_buffer *buf, int index)
2681 {
2682 struct qdio_buffer_element *element;
2683 struct sk_buff *skb;
2684 struct qeth_hdr *hdr;
2685 int offset;
2686 int rxrc;
2687 __u16 vlan_tag = 0;
2688
2689 /* get first element of current buffer */
2690 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2691 offset = 0;
2692 if (card->options.performance_stats)
2693 card->perf_stats.bufs_rec++;
2694 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2695 &offset, &hdr))) {
2696 skb->dev = card->dev;
2697 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2698 qeth_layer2_rebuild_skb(card, skb, hdr);
2699 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2700 vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2701 else { /*in case of OSN*/
2702 skb_push(skb, sizeof(struct qeth_hdr));
2703 skb_copy_to_linear_data(skb, hdr,
2704 sizeof(struct qeth_hdr));
2705 }
2706 /* is device UP ? */
2707 if (!(card->dev->flags & IFF_UP)){
2708 dev_kfree_skb_any(skb);
2709 continue;
2710 }
2711 if (card->info.type == QETH_CARD_TYPE_OSN)
2712 rxrc = card->osn_info.data_cb(skb);
2713 else
2714 #ifdef CONFIG_QETH_VLAN
2715 if (vlan_tag)
2716 if (card->vlangrp)
2717 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2718 else {
2719 dev_kfree_skb_any(skb);
2720 continue;
2721 }
2722 else
2723 #endif
2724 rxrc = netif_rx(skb);
2725 card->dev->last_rx = jiffies;
2726 card->stats.rx_packets++;
2727 card->stats.rx_bytes += skb->len;
2728 }
2729 }
2730
2731 static int
2732 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2733 {
2734 struct qeth_buffer_pool_entry *pool_entry;
2735 int i;
2736
2737 pool_entry = qeth_find_free_buffer_pool_entry(card);
2738 if (!pool_entry)
2739 return 1;
2740 /*
2741 * since the buffer is accessed only from the input_tasklet
2742 * there shouldn't be a need to synchronize; also, since we use
2743 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2744 * buffers
2745 */
2746 BUG_ON(!pool_entry);
2747
2748 buf->pool_entry = pool_entry;
2749 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2750 buf->buffer->element[i].length = PAGE_SIZE;
2751 buf->buffer->element[i].addr = pool_entry->elements[i];
2752 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2753 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2754 else
2755 buf->buffer->element[i].flags = 0;
2756 }
2757 buf->state = QETH_QDIO_BUF_EMPTY;
2758 return 0;
2759 }
2760
2761 static void
2762 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2763 struct qeth_qdio_out_buffer *buf)
2764 {
2765 int i;
2766 struct sk_buff *skb;
2767
2768 /* is PCI flag set on buffer? */
2769 if (buf->buffer->element[0].flags & 0x40)
2770 atomic_dec(&queue->set_pci_flags_count);
2771
2772 while ((skb = skb_dequeue(&buf->skb_list))){
2773 atomic_dec(&skb->users);
2774 dev_kfree_skb_any(skb);
2775 }
2776 qeth_eddp_buf_release_contexts(buf);
2777 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2778 buf->buffer->element[i].length = 0;
2779 buf->buffer->element[i].addr = NULL;
2780 buf->buffer->element[i].flags = 0;
2781 }
2782 buf->next_element_to_fill = 0;
2783 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2784 }
2785
2786 static void
2787 qeth_queue_input_buffer(struct qeth_card *card, int index)
2788 {
2789 struct qeth_qdio_q *queue = card->qdio.in_q;
2790 int count;
2791 int i;
2792 int rc;
2793 int newcount = 0;
2794
2795 QETH_DBF_TEXT(trace,6,"queinbuf");
2796 count = (index < queue->next_buf_to_init)?
2797 card->qdio.in_buf_pool.buf_count -
2798 (queue->next_buf_to_init - index) :
2799 card->qdio.in_buf_pool.buf_count -
2800 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2801 /* only requeue at a certain threshold to avoid SIGAs */
2802 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2803 for (i = queue->next_buf_to_init;
2804 i < queue->next_buf_to_init + count; ++i) {
2805 if (qeth_init_input_buffer(card,
2806 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2807 break;
2808 } else {
2809 newcount++;
2810 }
2811 }
2812
2813 if (newcount < count) {
2814 /* we are in memory shortage so we switch back to
2815 traditional skb allocation and drop packages */
2816 if (!atomic_read(&card->force_alloc_skb) &&
2817 net_ratelimit())
2818 PRINT_WARN("Switch to alloc skb\n");
2819 atomic_set(&card->force_alloc_skb, 3);
2820 count = newcount;
2821 } else {
2822 if ((atomic_read(&card->force_alloc_skb) == 1) &&
2823 net_ratelimit())
2824 PRINT_WARN("Switch to sg\n");
2825 atomic_add_unless(&card->force_alloc_skb, -1, 0);
2826 }
2827
2828 /*
2829 * according to old code it should be avoided to requeue all
2830 * 128 buffers in order to benefit from PCI avoidance.
2831 * this function keeps at least one buffer (the buffer at
2832 * 'index') un-requeued -> this buffer is the first buffer that
2833 * will be requeued the next time
2834 */
2835 if (card->options.performance_stats) {
2836 card->perf_stats.inbound_do_qdio_cnt++;
2837 card->perf_stats.inbound_do_qdio_start_time =
2838 qeth_get_micros();
2839 }
2840 rc = do_QDIO(CARD_DDEV(card),
2841 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2842 0, queue->next_buf_to_init, count, NULL);
2843 if (card->options.performance_stats)
2844 card->perf_stats.inbound_do_qdio_time +=
2845 qeth_get_micros() -
2846 card->perf_stats.inbound_do_qdio_start_time;
2847 if (rc){
2848 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2849 "return %i (device %s).\n",
2850 rc, CARD_DDEV_ID(card));
2851 QETH_DBF_TEXT(trace,2,"qinberr");
2852 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2853 }
2854 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2855 QDIO_MAX_BUFFERS_PER_Q;
2856 }
2857 }
2858
2859 static inline void
2860 qeth_put_buffer_pool_entry(struct qeth_card *card,
2861 struct qeth_buffer_pool_entry *entry)
2862 {
2863 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2864 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2865 }
2866
2867 static void
2868 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2869 unsigned int qdio_err, unsigned int siga_err,
2870 unsigned int queue, int first_element, int count,
2871 unsigned long card_ptr)
2872 {
2873 struct net_device *net_dev;
2874 struct qeth_card *card;
2875 struct qeth_qdio_buffer *buffer;
2876 int index;
2877 int i;
2878
2879 QETH_DBF_TEXT(trace, 6, "qdinput");
2880 card = (struct qeth_card *) card_ptr;
2881 net_dev = card->dev;
2882 if (card->options.performance_stats) {
2883 card->perf_stats.inbound_cnt++;
2884 card->perf_stats.inbound_start_time = qeth_get_micros();
2885 }
2886 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2887 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2888 QETH_DBF_TEXT(trace, 1,"qdinchk");
2889 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2890 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2891 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2892 qeth_schedule_recovery(card);
2893 return;
2894 }
2895 }
2896 for (i = first_element; i < (first_element + count); ++i) {
2897 index = i % QDIO_MAX_BUFFERS_PER_Q;
2898 buffer = &card->qdio.in_q->bufs[index];
2899 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2900 qeth_check_qdio_errors(buffer->buffer,
2901 qdio_err, siga_err,"qinerr")))
2902 qeth_process_inbound_buffer(card, buffer, index);
2903 /* clear buffer and give back to hardware */
2904 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2905 qeth_queue_input_buffer(card, index);
2906 }
2907 if (card->options.performance_stats)
2908 card->perf_stats.inbound_time += qeth_get_micros() -
2909 card->perf_stats.inbound_start_time;
2910 }
2911
2912 static int
2913 qeth_handle_send_error(struct qeth_card *card,
2914 struct qeth_qdio_out_buffer *buffer,
2915 unsigned int qdio_err, unsigned int siga_err)
2916 {
2917 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2918 int cc = siga_err & 3;
2919
2920 QETH_DBF_TEXT(trace, 6, "hdsnderr");
2921 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2922 switch (cc) {
2923 case 0:
2924 if (qdio_err){
2925 QETH_DBF_TEXT(trace, 1,"lnkfail");
2926 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2927 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2928 (u16)qdio_err, (u8)sbalf15);
2929 return QETH_SEND_ERROR_LINK_FAILURE;
2930 }
2931 return QETH_SEND_ERROR_NONE;
2932 case 2:
2933 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2934 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2935 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2936 return QETH_SEND_ERROR_KICK_IT;
2937 }
2938 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2939 return QETH_SEND_ERROR_RETRY;
2940 return QETH_SEND_ERROR_LINK_FAILURE;
2941 /* look at qdio_error and sbalf 15 */
2942 case 1:
2943 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2944 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2945 return QETH_SEND_ERROR_LINK_FAILURE;
2946 case 3:
2947 default:
2948 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2949 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2950 return QETH_SEND_ERROR_KICK_IT;
2951 }
2952 }
2953
2954 void
2955 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2956 int index, int count)
2957 {
2958 struct qeth_qdio_out_buffer *buf;
2959 int rc;
2960 int i;
2961 unsigned int qdio_flags;
2962
2963 QETH_DBF_TEXT(trace, 6, "flushbuf");
2964
2965 for (i = index; i < index + count; ++i) {
2966 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2967 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2968 SBAL_FLAGS_LAST_ENTRY;
2969
2970 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2971 continue;
2972
2973 if (!queue->do_pack){
2974 if ((atomic_read(&queue->used_buffers) >=
2975 (QETH_HIGH_WATERMARK_PACK -
2976 QETH_WATERMARK_PACK_FUZZ)) &&
2977 !atomic_read(&queue->set_pci_flags_count)){
2978 /* it's likely that we'll go to packing
2979 * mode soon */
2980 atomic_inc(&queue->set_pci_flags_count);
2981 buf->buffer->element[0].flags |= 0x40;
2982 }
2983 } else {
2984 if (!atomic_read(&queue->set_pci_flags_count)){
2985 /*
2986 * there's no outstanding PCI any more, so we
2987 * have to request a PCI to be sure that the PCI
2988 * will wake at some time in the future then we
2989 * can flush packed buffers that might still be
2990 * hanging around, which can happen if no
2991 * further send was requested by the stack
2992 */
2993 atomic_inc(&queue->set_pci_flags_count);
2994 buf->buffer->element[0].flags |= 0x40;
2995 }
2996 }
2997 }
2998
2999 queue->card->dev->trans_start = jiffies;
3000 if (queue->card->options.performance_stats) {
3001 queue->card->perf_stats.outbound_do_qdio_cnt++;
3002 queue->card->perf_stats.outbound_do_qdio_start_time =
3003 qeth_get_micros();
3004 }
3005 qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
3006 if (under_int)
3007 qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT;
3008 if (atomic_read(&queue->set_pci_flags_count))
3009 qdio_flags |= QDIO_FLAG_PCI_OUT;
3010 rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
3011 queue->queue_no, index, count, NULL);
3012 if (queue->card->options.performance_stats)
3013 queue->card->perf_stats.outbound_do_qdio_time +=
3014 qeth_get_micros() -
3015 queue->card->perf_stats.outbound_do_qdio_start_time;
3016 if (rc){
3017 QETH_DBF_TEXT(trace, 2, "flushbuf");
3018 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
3019 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
3020 queue->card->stats.tx_errors += count;
3021 /* this must not happen under normal circumstances. if it
3022 * happens something is really wrong -> recover */
3023 qeth_schedule_recovery(queue->card);
3024 return;
3025 }
3026 atomic_add(count, &queue->used_buffers);
3027 if (queue->card->options.performance_stats)
3028 queue->card->perf_stats.bufs_sent += count;
3029 }
3030
3031 /*
3032 * Switched to packing state if the number of used buffers on a queue
3033 * reaches a certain limit.
3034 */
3035 static void
3036 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3037 {
3038 if (!queue->do_pack) {
3039 if (atomic_read(&queue->used_buffers)
3040 >= QETH_HIGH_WATERMARK_PACK){
3041 /* switch non-PACKING -> PACKING */
3042 QETH_DBF_TEXT(trace, 6, "np->pack");
3043 if (queue->card->options.performance_stats)
3044 queue->card->perf_stats.sc_dp_p++;
3045 queue->do_pack = 1;
3046 }
3047 }
3048 }
3049
3050 /*
3051 * Switches from packing to non-packing mode. If there is a packing
3052 * buffer on the queue this buffer will be prepared to be flushed.
3053 * In that case 1 is returned to inform the caller. If no buffer
3054 * has to be flushed, zero is returned.
3055 */
3056 static int
3057 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3058 {
3059 struct qeth_qdio_out_buffer *buffer;
3060 int flush_count = 0;
3061
3062 if (queue->do_pack) {
3063 if (atomic_read(&queue->used_buffers)
3064 <= QETH_LOW_WATERMARK_PACK) {
3065 /* switch PACKING -> non-PACKING */
3066 QETH_DBF_TEXT(trace, 6, "pack->np");
3067 if (queue->card->options.performance_stats)
3068 queue->card->perf_stats.sc_p_dp++;
3069 queue->do_pack = 0;
3070 /* flush packing buffers */
3071 buffer = &queue->bufs[queue->next_buf_to_fill];
3072 if ((atomic_read(&buffer->state) ==
3073 QETH_QDIO_BUF_EMPTY) &&
3074 (buffer->next_element_to_fill > 0)) {
3075 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
3076 flush_count++;
3077 queue->next_buf_to_fill =
3078 (queue->next_buf_to_fill + 1) %
3079 QDIO_MAX_BUFFERS_PER_Q;
3080 }
3081 }
3082 }
3083 return flush_count;
3084 }
3085
3086 /*
3087 * Called to flush a packing buffer if no more pci flags are on the queue.
3088 * Checks if there is a packing buffer and prepares it to be flushed.
3089 * In that case returns 1, otherwise zero.
3090 */
3091 static int
3092 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
3093 {
3094 struct qeth_qdio_out_buffer *buffer;
3095
3096 buffer = &queue->bufs[queue->next_buf_to_fill];
3097 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3098 (buffer->next_element_to_fill > 0)){
3099 /* it's a packing buffer */
3100 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3101 queue->next_buf_to_fill =
3102 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3103 return 1;
3104 }
3105 return 0;
3106 }
3107
3108 static void
3109 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3110 {
3111 int index;
3112 int flush_cnt = 0;
3113 int q_was_packing = 0;
3114
3115 /*
3116 * check if weed have to switch to non-packing mode or if
3117 * we have to get a pci flag out on the queue
3118 */
3119 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3120 !atomic_read(&queue->set_pci_flags_count)){
3121 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3122 QETH_OUT_Q_UNLOCKED) {
3123 /*
3124 * If we get in here, there was no action in
3125 * do_send_packet. So, we check if there is a
3126 * packing buffer to be flushed here.
3127 */
3128 netif_stop_queue(queue->card->dev);
3129 index = queue->next_buf_to_fill;
3130 q_was_packing = queue->do_pack;
3131 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3132 if (!flush_cnt &&
3133 !atomic_read(&queue->set_pci_flags_count))
3134 flush_cnt +=
3135 qeth_flush_buffers_on_no_pci(queue);
3136 if (queue->card->options.performance_stats &&
3137 q_was_packing)
3138 queue->card->perf_stats.bufs_sent_pack +=
3139 flush_cnt;
3140 if (flush_cnt)
3141 qeth_flush_buffers(queue, 1, index, flush_cnt);
3142 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3143 }
3144 }
3145 }
3146
3147 static void
3148 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3149 unsigned int qdio_error, unsigned int siga_error,
3150 unsigned int __queue, int first_element, int count,
3151 unsigned long card_ptr)
3152 {
3153 struct qeth_card *card = (struct qeth_card *) card_ptr;
3154 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3155 struct qeth_qdio_out_buffer *buffer;
3156 int i;
3157
3158 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3159 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3160 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3161 QETH_DBF_TEXT(trace, 2, "achkcond");
3162 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3163 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3164 netif_stop_queue(card->dev);
3165 qeth_schedule_recovery(card);
3166 return;
3167 }
3168 }
3169 if (card->options.performance_stats) {
3170 card->perf_stats.outbound_handler_cnt++;
3171 card->perf_stats.outbound_handler_start_time =
3172 qeth_get_micros();
3173 }
3174 for(i = first_element; i < (first_element + count); ++i){
3175 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3176 /*we only handle the KICK_IT error by doing a recovery */
3177 if (qeth_handle_send_error(card, buffer,
3178 qdio_error, siga_error)
3179 == QETH_SEND_ERROR_KICK_IT){
3180 netif_stop_queue(card->dev);
3181 qeth_schedule_recovery(card);
3182 return;
3183 }
3184 qeth_clear_output_buffer(queue, buffer);
3185 }
3186 atomic_sub(count, &queue->used_buffers);
3187 /* check if we need to do something on this outbound queue */
3188 if (card->info.type != QETH_CARD_TYPE_IQD)
3189 qeth_check_outbound_queue(queue);
3190
3191 netif_wake_queue(queue->card->dev);
3192 if (card->options.performance_stats)
3193 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3194 card->perf_stats.outbound_handler_start_time;
3195 }
3196
3197 static void
3198 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3199 {
3200
3201 param_field[0] = _ascebc['P'];
3202 param_field[1] = _ascebc['C'];
3203 param_field[2] = _ascebc['I'];
3204 param_field[3] = _ascebc['T'];
3205 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3206 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3207 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3208 }
3209
3210 static void
3211 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3212 {
3213 param_field[16] = _ascebc['B'];
3214 param_field[17] = _ascebc['L'];
3215 param_field[18] = _ascebc['K'];
3216 param_field[19] = _ascebc['T'];
3217 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3218 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3219 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3220 }
3221
3222 static void
3223 qeth_initialize_working_pool_list(struct qeth_card *card)
3224 {
3225 struct qeth_buffer_pool_entry *entry;
3226
3227 QETH_DBF_TEXT(trace,5,"inwrklst");
3228
3229 list_for_each_entry(entry,
3230 &card->qdio.init_pool.entry_list, init_list) {
3231 qeth_put_buffer_pool_entry(card,entry);
3232 }
3233 }
3234
3235 static void
3236 qeth_clear_working_pool_list(struct qeth_card *card)
3237 {
3238 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3239
3240 QETH_DBF_TEXT(trace,5,"clwrklst");
3241 list_for_each_entry_safe(pool_entry, tmp,
3242 &card->qdio.in_buf_pool.entry_list, list){
3243 list_del(&pool_entry->list);
3244 }
3245 }
3246
3247 static void
3248 qeth_free_buffer_pool(struct qeth_card *card)
3249 {
3250 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3251 int i=0;
3252 QETH_DBF_TEXT(trace,5,"freepool");
3253 list_for_each_entry_safe(pool_entry, tmp,
3254 &card->qdio.init_pool.entry_list, init_list){
3255 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3256 free_page((unsigned long)pool_entry->elements[i]);
3257 list_del(&pool_entry->init_list);
3258 kfree(pool_entry);
3259 }
3260 }
3261
3262 static int
3263 qeth_alloc_buffer_pool(struct qeth_card *card)
3264 {
3265 struct qeth_buffer_pool_entry *pool_entry;
3266 void *ptr;
3267 int i, j;
3268
3269 QETH_DBF_TEXT(trace,5,"alocpool");
3270 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3271 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3272 if (!pool_entry){
3273 qeth_free_buffer_pool(card);
3274 return -ENOMEM;
3275 }
3276 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3277 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3278 if (!ptr) {
3279 while (j > 0)
3280 free_page((unsigned long)
3281 pool_entry->elements[--j]);
3282 kfree(pool_entry);
3283 qeth_free_buffer_pool(card);
3284 return -ENOMEM;
3285 }
3286 pool_entry->elements[j] = ptr;
3287 }
3288 list_add(&pool_entry->init_list,
3289 &card->qdio.init_pool.entry_list);
3290 }
3291 return 0;
3292 }
3293
3294 int
3295 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3296 {
3297 QETH_DBF_TEXT(trace, 2, "realcbp");
3298
3299 if ((card->state != CARD_STATE_DOWN) &&
3300 (card->state != CARD_STATE_RECOVER))
3301 return -EPERM;
3302
3303 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3304 qeth_clear_working_pool_list(card);
3305 qeth_free_buffer_pool(card);
3306 card->qdio.in_buf_pool.buf_count = bufcnt;
3307 card->qdio.init_pool.buf_count = bufcnt;
3308 return qeth_alloc_buffer_pool(card);
3309 }
3310
3311 static int
3312 qeth_alloc_qdio_buffers(struct qeth_card *card)
3313 {
3314 int i, j;
3315
3316 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3317
3318 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3319 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3320 return 0;
3321
3322 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3323 GFP_KERNEL|GFP_DMA);
3324 if (!card->qdio.in_q)
3325 goto out_nomem;
3326 QETH_DBF_TEXT(setup, 2, "inq");
3327 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3328 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3329 /* give inbound qeth_qdio_buffers their qdio_buffers */
3330 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3331 card->qdio.in_q->bufs[i].buffer =
3332 &card->qdio.in_q->qdio_bufs[i];
3333 /* inbound buffer pool */
3334 if (qeth_alloc_buffer_pool(card))
3335 goto out_freeinq;
3336 /* outbound */
3337 card->qdio.out_qs =
3338 kmalloc(card->qdio.no_out_queues *
3339 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3340 if (!card->qdio.out_qs)
3341 goto out_freepool;
3342 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3343 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3344 GFP_KERNEL|GFP_DMA);
3345 if (!card->qdio.out_qs[i])
3346 goto out_freeoutq;
3347 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3348 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3349 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3350 card->qdio.out_qs[i]->queue_no = i;
3351 /* give outbound qeth_qdio_buffers their qdio_buffers */
3352 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3353 card->qdio.out_qs[i]->bufs[j].buffer =
3354 &card->qdio.out_qs[i]->qdio_bufs[j];
3355 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3356 skb_list);
3357 lockdep_set_class(
3358 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3359 &qdio_out_skb_queue_key);
3360 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3361 }
3362 }
3363 return 0;
3364
3365 out_freeoutq:
3366 while (i > 0)
3367 kfree(card->qdio.out_qs[--i]);
3368 kfree(card->qdio.out_qs);
3369 card->qdio.out_qs = NULL;
3370 out_freepool:
3371 qeth_free_buffer_pool(card);
3372 out_freeinq:
3373 kfree(card->qdio.in_q);
3374 card->qdio.in_q = NULL;
3375 out_nomem:
3376 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3377 return -ENOMEM;
3378 }
3379
3380 static void
3381 qeth_free_qdio_buffers(struct qeth_card *card)
3382 {
3383 int i, j;
3384
3385 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3386 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3387 QETH_QDIO_UNINITIALIZED)
3388 return;
3389 kfree(card->qdio.in_q);
3390 card->qdio.in_q = NULL;
3391 /* inbound buffer pool */
3392 qeth_free_buffer_pool(card);
3393 /* free outbound qdio_qs */
3394 if (card->qdio.out_qs) {
3395 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3396 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3397 qeth_clear_output_buffer(card->qdio.out_qs[i],
3398 &card->qdio.out_qs[i]->bufs[j]);
3399 kfree(card->qdio.out_qs[i]);
3400 }
3401 kfree(card->qdio.out_qs);
3402 card->qdio.out_qs = NULL;
3403 }
3404 }
3405
3406 static void
3407 qeth_clear_qdio_buffers(struct qeth_card *card)
3408 {
3409 int i, j;
3410
3411 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3412 /* clear outbound buffers to free skbs */
3413 for (i = 0; i < card->qdio.no_out_queues; ++i)
3414 if (card->qdio.out_qs && card->qdio.out_qs[i]) {
3415 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3416 qeth_clear_output_buffer(card->qdio.out_qs[i],
3417 &card->qdio.out_qs[i]->bufs[j]);
3418 }
3419 }
3420
3421 static void
3422 qeth_init_qdio_info(struct qeth_card *card)
3423 {
3424 QETH_DBF_TEXT(setup, 4, "intqdinf");
3425 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3426 /* inbound */
3427 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3428 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3429 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3430 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3431 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3432 }
3433
3434 static int
3435 qeth_init_qdio_queues(struct qeth_card *card)
3436 {
3437 int i, j;
3438 int rc;
3439
3440 QETH_DBF_TEXT(setup, 2, "initqdqs");
3441
3442 /* inbound queue */
3443 memset(card->qdio.in_q->qdio_bufs, 0,
3444 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3445 qeth_initialize_working_pool_list(card);
3446 /*give only as many buffers to hardware as we have buffer pool entries*/
3447 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3448 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3449 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3450 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3451 card->qdio.in_buf_pool.buf_count - 1, NULL);
3452 if (rc) {
3453 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3454 return rc;
3455 }
3456 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3457 if (rc) {
3458 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3459 return rc;
3460 }
3461 /* outbound queue */
3462 for (i = 0; i < card->qdio.no_out_queues; ++i){
3463 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3464 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3465 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3466 qeth_clear_output_buffer(card->qdio.out_qs[i],
3467 &card->qdio.out_qs[i]->bufs[j]);
3468 }
3469 card->qdio.out_qs[i]->card = card;
3470 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3471 card->qdio.out_qs[i]->do_pack = 0;
3472 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3473 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3474 atomic_set(&card->qdio.out_qs[i]->state,
3475 QETH_OUT_Q_UNLOCKED);
3476 }
3477 return 0;
3478 }
3479
3480 static int
3481 qeth_qdio_establish(struct qeth_card *card)
3482 {
3483 struct qdio_initialize init_data;
3484 char *qib_param_field;
3485 struct qdio_buffer **in_sbal_ptrs;
3486 struct qdio_buffer **out_sbal_ptrs;
3487 int i, j, k;
3488 int rc = 0;
3489
3490 QETH_DBF_TEXT(setup, 2, "qdioest");
3491
3492 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3493 GFP_KERNEL);
3494 if (!qib_param_field)
3495 return -ENOMEM;
3496
3497 qeth_create_qib_param_field(card, qib_param_field);
3498 qeth_create_qib_param_field_blkt(card, qib_param_field);
3499
3500 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3501 GFP_KERNEL);
3502 if (!in_sbal_ptrs) {
3503 kfree(qib_param_field);
3504 return -ENOMEM;
3505 }
3506 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3507 in_sbal_ptrs[i] = (struct qdio_buffer *)
3508 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3509
3510 out_sbal_ptrs =
3511 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3512 sizeof(void *), GFP_KERNEL);
3513 if (!out_sbal_ptrs) {
3514 kfree(in_sbal_ptrs);
3515 kfree(qib_param_field);
3516 return -ENOMEM;
3517 }
3518 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3519 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3520 out_sbal_ptrs[k] = (struct qdio_buffer *)
3521 virt_to_phys(card->qdio.out_qs[i]->
3522 bufs[j].buffer);
3523 }
3524
3525 memset(&init_data, 0, sizeof(struct qdio_initialize));
3526 init_data.cdev = CARD_DDEV(card);
3527 init_data.q_format = qeth_get_qdio_q_format(card);
3528 init_data.qib_param_field_format = 0;
3529 init_data.qib_param_field = qib_param_field;
3530 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3531 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3532 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3533 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3534 init_data.no_input_qs = 1;
3535 init_data.no_output_qs = card->qdio.no_out_queues;
3536 init_data.input_handler = (qdio_handler_t *)
3537 qeth_qdio_input_handler;
3538 init_data.output_handler = (qdio_handler_t *)
3539 qeth_qdio_output_handler;
3540 init_data.int_parm = (unsigned long) card;
3541 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3542 QDIO_OUTBOUND_0COPY_SBALS |
3543 QDIO_USE_OUTBOUND_PCIS;
3544 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3545 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3546
3547 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3548 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3549 if ((rc = qdio_initialize(&init_data)))
3550 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3551
3552 kfree(out_sbal_ptrs);
3553 kfree(in_sbal_ptrs);
3554 kfree(qib_param_field);
3555 return rc;
3556 }
3557
3558 static int
3559 qeth_qdio_activate(struct qeth_card *card)
3560 {
3561 QETH_DBF_TEXT(setup,3,"qdioact");
3562 return qdio_activate(CARD_DDEV(card), 0);
3563 }
3564
3565 static int
3566 qeth_clear_channel(struct qeth_channel *channel)
3567 {
3568 unsigned long flags;
3569 struct qeth_card *card;
3570 int rc;
3571
3572 QETH_DBF_TEXT(trace,3,"clearch");
3573 card = CARD_FROM_CDEV(channel->ccwdev);
3574 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3575 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3576 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3577
3578 if (rc)
3579 return rc;
3580 rc = wait_event_interruptible_timeout(card->wait_q,
3581 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3582 if (rc == -ERESTARTSYS)
3583 return rc;
3584 if (channel->state != CH_STATE_STOPPED)
3585 return -ETIME;
3586 channel->state = CH_STATE_DOWN;
3587 return 0;
3588 }
3589
3590 static int
3591 qeth_halt_channel(struct qeth_channel *channel)
3592 {
3593 unsigned long flags;
3594 struct qeth_card *card;
3595 int rc;
3596
3597 QETH_DBF_TEXT(trace,3,"haltch");
3598 card = CARD_FROM_CDEV(channel->ccwdev);
3599 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3600 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3601 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3602
3603 if (rc)
3604 return rc;
3605 rc = wait_event_interruptible_timeout(card->wait_q,
3606 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3607 if (rc == -ERESTARTSYS)
3608 return rc;
3609 if (channel->state != CH_STATE_HALTED)
3610 return -ETIME;
3611 return 0;
3612 }
3613
3614 static int
3615 qeth_halt_channels(struct qeth_card *card)
3616 {
3617 int rc1 = 0, rc2=0, rc3 = 0;
3618
3619 QETH_DBF_TEXT(trace,3,"haltchs");
3620 rc1 = qeth_halt_channel(&card->read);
3621 rc2 = qeth_halt_channel(&card->write);
3622 rc3 = qeth_halt_channel(&card->data);
3623 if (rc1)
3624 return rc1;
3625 if (rc2)
3626 return rc2;
3627 return rc3;
3628 }
3629 static int
3630 qeth_clear_channels(struct qeth_card *card)
3631 {
3632 int rc1 = 0, rc2=0, rc3 = 0;
3633
3634 QETH_DBF_TEXT(trace,3,"clearchs");
3635 rc1 = qeth_clear_channel(&card->read);
3636 rc2 = qeth_clear_channel(&card->write);
3637 rc3 = qeth_clear_channel(&card->data);
3638 if (rc1)
3639 return rc1;
3640 if (rc2)
3641 return rc2;
3642 return rc3;
3643 }
3644
3645 static int
3646 qeth_clear_halt_card(struct qeth_card *card, int halt)
3647 {
3648 int rc = 0;
3649
3650 QETH_DBF_TEXT(trace,3,"clhacrd");
3651 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3652
3653 if (halt)
3654 rc = qeth_halt_channels(card);
3655 if (rc)
3656 return rc;
3657 return qeth_clear_channels(card);
3658 }
3659
3660 static int
3661 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3662 {
3663 int rc = 0;
3664
3665 QETH_DBF_TEXT(trace,3,"qdioclr");
3666 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3667 QETH_QDIO_CLEANING)) {
3668 case QETH_QDIO_ESTABLISHED:
3669 if ((rc = qdio_cleanup(CARD_DDEV(card),
3670 (card->info.type == QETH_CARD_TYPE_IQD) ?
3671 QDIO_FLAG_CLEANUP_USING_HALT :
3672 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3673 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3674 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3675 break;
3676 case QETH_QDIO_CLEANING:
3677 return rc;
3678 default:
3679 break;
3680 }
3681 if ((rc = qeth_clear_halt_card(card, use_halt)))
3682 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3683 card->state = CARD_STATE_DOWN;
3684 return rc;
3685 }
3686
3687 static int
3688 qeth_dm_act(struct qeth_card *card)
3689 {
3690 int rc;
3691 struct qeth_cmd_buffer *iob;
3692
3693 QETH_DBF_TEXT(setup,2,"dmact");
3694
3695 iob = qeth_wait_for_buffer(&card->write);
3696 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3697
3698 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3699 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3700 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3701 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3702 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3703 return rc;
3704 }
3705
3706 static int
3707 qeth_mpc_initialize(struct qeth_card *card)
3708 {
3709 int rc;
3710
3711 QETH_DBF_TEXT(setup,2,"mpcinit");
3712
3713 if ((rc = qeth_issue_next_read(card))){
3714 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3715 return rc;
3716 }
3717 if ((rc = qeth_cm_enable(card))){
3718 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3719 goto out_qdio;
3720 }
3721 if ((rc = qeth_cm_setup(card))){
3722 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3723 goto out_qdio;
3724 }
3725 if ((rc = qeth_ulp_enable(card))){
3726 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3727 goto out_qdio;
3728 }
3729 if ((rc = qeth_ulp_setup(card))){
3730 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3731 goto out_qdio;
3732 }
3733 if ((rc = qeth_alloc_qdio_buffers(card))){
3734 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3735 goto out_qdio;
3736 }
3737 if ((rc = qeth_qdio_establish(card))){
3738 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3739 qeth_free_qdio_buffers(card);
3740 goto out_qdio;
3741 }
3742 if ((rc = qeth_qdio_activate(card))){
3743 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3744 goto out_qdio;
3745 }
3746 if ((rc = qeth_dm_act(card))){
3747 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3748 goto out_qdio;
3749 }
3750
3751 return 0;
3752 out_qdio:
3753 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3754 return rc;
3755 }
3756
3757 static struct net_device *
3758 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3759 {
3760 struct net_device *dev = NULL;
3761
3762 switch (type) {
3763 case QETH_CARD_TYPE_OSAE:
3764 switch (linktype) {
3765 case QETH_LINK_TYPE_LANE_TR:
3766 case QETH_LINK_TYPE_HSTR:
3767 #ifdef CONFIG_TR
3768 dev = alloc_trdev(0);
3769 #endif /* CONFIG_TR */
3770 break;
3771 default:
3772 dev = alloc_etherdev(0);
3773 }
3774 break;
3775 case QETH_CARD_TYPE_IQD:
3776 dev = alloc_netdev(0, "hsi%d", ether_setup);
3777 break;
3778 case QETH_CARD_TYPE_OSN:
3779 dev = alloc_netdev(0, "osn%d", ether_setup);
3780 break;
3781 default:
3782 dev = alloc_etherdev(0);
3783 }
3784 return dev;
3785 }
3786
3787 /*hard_header fake function; used in case fake_ll is set */
3788 static int
3789 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3790 unsigned short type, void *daddr, void *saddr,
3791 unsigned len)
3792 {
3793 if(dev->type == ARPHRD_IEEE802_TR){
3794 struct trh_hdr *hdr;
3795 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3796 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3797 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3798 return QETH_FAKE_LL_LEN_TR;
3799
3800 } else {
3801 struct ethhdr *hdr;
3802 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3803 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3804 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3805 if (type != ETH_P_802_3)
3806 hdr->h_proto = htons(type);
3807 else
3808 hdr->h_proto = htons(len);
3809 return QETH_FAKE_LL_LEN_ETH;
3810
3811 }
3812 }
3813
3814 static int
3815 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3816
3817 static int
3818 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3819 {
3820 int rc;
3821 struct qeth_card *card;
3822
3823 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3824 card = (struct qeth_card *)dev->priv;
3825 if (skb==NULL) {
3826 card->stats.tx_dropped++;
3827 card->stats.tx_errors++;
3828 /* return OK; otherwise ksoftirqd goes to 100% */
3829 return NETDEV_TX_OK;
3830 }
3831 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3832 card->stats.tx_dropped++;
3833 card->stats.tx_errors++;
3834 card->stats.tx_carrier_errors++;
3835 dev_kfree_skb_any(skb);
3836 /* return OK; otherwise ksoftirqd goes to 100% */
3837 return NETDEV_TX_OK;
3838 }
3839 if (card->options.performance_stats) {
3840 card->perf_stats.outbound_cnt++;
3841 card->perf_stats.outbound_start_time = qeth_get_micros();
3842 }
3843 netif_stop_queue(dev);
3844 if ((rc = qeth_send_packet(card, skb))) {
3845 if (rc == -EBUSY) {
3846 return NETDEV_TX_BUSY;
3847 } else {
3848 card->stats.tx_errors++;
3849 card->stats.tx_dropped++;
3850 dev_kfree_skb_any(skb);
3851 /*set to OK; otherwise ksoftirqd goes to 100% */
3852 rc = NETDEV_TX_OK;
3853 }
3854 }
3855 netif_wake_queue(dev);
3856 if (card->options.performance_stats)
3857 card->perf_stats.outbound_time += qeth_get_micros() -
3858 card->perf_stats.outbound_start_time;
3859 return rc;
3860 }
3861
3862 static int
3863 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3864 {
3865 int rc = 0;
3866 #ifdef CONFIG_QETH_VLAN
3867 struct vlan_group *vg;
3868 int i;
3869
3870 if (!(vg = card->vlangrp))
3871 return rc;
3872
3873 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3874 if (vlan_group_get_device(vg, i) == dev){
3875 rc = QETH_VLAN_CARD;
3876 break;
3877 }
3878 }
3879 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3880 return 0;
3881
3882 #endif
3883 return rc;
3884 }
3885
3886 static int
3887 qeth_verify_dev(struct net_device *dev)
3888 {
3889 struct qeth_card *card;
3890 unsigned long flags;
3891 int rc = 0;
3892
3893 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3894 list_for_each_entry(card, &qeth_card_list.list, list){
3895 if (card->dev == dev){
3896 rc = QETH_REAL_CARD;
3897 break;
3898 }
3899 rc = qeth_verify_vlan_dev(dev, card);
3900 if (rc)
3901 break;
3902 }
3903 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3904
3905 return rc;
3906 }
3907
3908 static struct qeth_card *
3909 qeth_get_card_from_dev(struct net_device *dev)
3910 {
3911 struct qeth_card *card = NULL;
3912 int rc;
3913
3914 rc = qeth_verify_dev(dev);
3915 if (rc == QETH_REAL_CARD)
3916 card = (struct qeth_card *)dev->priv;
3917 else if (rc == QETH_VLAN_CARD)
3918 card = (struct qeth_card *)
3919 VLAN_DEV_INFO(dev)->real_dev->priv;
3920
3921 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3922 return card ;
3923 }
3924
3925 static void
3926 qeth_tx_timeout(struct net_device *dev)
3927 {
3928 struct qeth_card *card;
3929
3930 card = (struct qeth_card *) dev->priv;
3931 card->stats.tx_errors++;
3932 qeth_schedule_recovery(card);
3933 }
3934
3935 static int
3936 qeth_open(struct net_device *dev)
3937 {
3938 struct qeth_card *card;
3939
3940 QETH_DBF_TEXT(trace, 4, "qethopen");
3941
3942 card = (struct qeth_card *) dev->priv;
3943
3944 if (card->state != CARD_STATE_SOFTSETUP)
3945 return -ENODEV;
3946
3947 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3948 (card->options.layer2) &&
3949 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3950 QETH_DBF_TEXT(trace,4,"nomacadr");
3951 return -EPERM;
3952 }
3953 card->data.state = CH_STATE_UP;
3954 card->state = CARD_STATE_UP;
3955 card->dev->flags |= IFF_UP;
3956 netif_start_queue(dev);
3957
3958 if (!card->lan_online && netif_carrier_ok(dev))
3959 netif_carrier_off(dev);
3960 return 0;
3961 }
3962
3963 static int
3964 qeth_stop(struct net_device *dev)
3965 {
3966 struct qeth_card *card;
3967
3968 QETH_DBF_TEXT(trace, 4, "qethstop");
3969
3970 card = (struct qeth_card *) dev->priv;
3971
3972 netif_tx_disable(dev);
3973 card->dev->flags &= ~IFF_UP;
3974 if (card->state == CARD_STATE_UP)
3975 card->state = CARD_STATE_SOFTSETUP;
3976 return 0;
3977 }
3978
3979 static int
3980 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3981 {
3982 int cast_type = RTN_UNSPEC;
3983
3984 if (card->info.type == QETH_CARD_TYPE_OSN)
3985 return cast_type;
3986
3987 if (skb->dst && skb->dst->neighbour){
3988 cast_type = skb->dst->neighbour->type;
3989 if ((cast_type == RTN_BROADCAST) ||
3990 (cast_type == RTN_MULTICAST) ||
3991 (cast_type == RTN_ANYCAST))
3992 return cast_type;
3993 else
3994 return RTN_UNSPEC;
3995 }
3996 /* try something else */
3997 if (skb->protocol == ETH_P_IPV6)
3998 return (skb_network_header(skb)[24] == 0xff) ?
3999 RTN_MULTICAST : 0;
4000 else if (skb->protocol == ETH_P_IP)
4001 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
4002 RTN_MULTICAST : 0;
4003 /* ... */
4004 if (!memcmp(skb->data, skb->dev->broadcast, 6))
4005 return RTN_BROADCAST;
4006 else {
4007 u16 hdr_mac;
4008
4009 hdr_mac = *((u16 *)skb->data);
4010 /* tr multicast? */
4011 switch (card->info.link_type) {
4012 case QETH_LINK_TYPE_HSTR:
4013 case QETH_LINK_TYPE_LANE_TR:
4014 if ((hdr_mac == QETH_TR_MAC_NC) ||
4015 (hdr_mac == QETH_TR_MAC_C))
4016 return RTN_MULTICAST;
4017 break;
4018 /* eth or so multicast? */
4019 default:
4020 if ((hdr_mac == QETH_ETH_MAC_V4) ||
4021 (hdr_mac == QETH_ETH_MAC_V6))
4022 return RTN_MULTICAST;
4023 }
4024 }
4025 return cast_type;
4026 }
4027
4028 static int
4029 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
4030 int ipv, int cast_type)
4031 {
4032 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
4033 return card->qdio.default_out_queue;
4034 switch (card->qdio.no_out_queues) {
4035 case 4:
4036 if (cast_type && card->info.is_multicast_different)
4037 return card->info.is_multicast_different &
4038 (card->qdio.no_out_queues - 1);
4039 if (card->qdio.do_prio_queueing && (ipv == 4)) {
4040 const u8 tos = ip_hdr(skb)->tos;
4041
4042 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
4043 if (tos & IP_TOS_NOTIMPORTANT)
4044 return 3;
4045 if (tos & IP_TOS_HIGHRELIABILITY)
4046 return 2;
4047 if (tos & IP_TOS_HIGHTHROUGHPUT)
4048 return 1;
4049 if (tos & IP_TOS_LOWDELAY)
4050 return 0;
4051 }
4052 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
4053 return 3 - (tos >> 6);
4054 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
4055 /* TODO: IPv6!!! */
4056 }
4057 return card->qdio.default_out_queue;
4058 case 1: /* fallthrough for single-out-queue 1920-device */
4059 default:
4060 return card->qdio.default_out_queue;
4061 }
4062 }
4063
4064 static inline int
4065 qeth_get_ip_version(struct sk_buff *skb)
4066 {
4067 switch (skb->protocol) {
4068 case ETH_P_IPV6:
4069 return 6;
4070 case ETH_P_IP:
4071 return 4;
4072 default:
4073 return 0;
4074 }
4075 }
4076
4077 static struct qeth_hdr *
4078 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
4079 {
4080 #ifdef CONFIG_QETH_VLAN
4081 u16 *tag;
4082 if (card->vlangrp && vlan_tx_tag_present(skb) &&
4083 ((ipv == 6) || card->options.layer2) ) {
4084 /*
4085 * Move the mac addresses (6 bytes src, 6 bytes dest)
4086 * to the beginning of the new header. We are using three
4087 * memcpys instead of one memmove to save cycles.
4088 */
4089 skb_push(skb, VLAN_HLEN);
4090 skb_copy_to_linear_data(skb, skb->data + 4, 4);
4091 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
4092 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
4093 tag = (u16 *)(skb->data + 12);
4094 /*
4095 * first two bytes = ETH_P_8021Q (0x8100)
4096 * second two bytes = VLANID
4097 */
4098 *tag = __constant_htons(ETH_P_8021Q);
4099 *(tag + 1) = htons(vlan_tx_tag_get(skb));
4100 }
4101 #endif
4102 return ((struct qeth_hdr *)
4103 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
4104 }
4105
4106 static void
4107 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
4108 {
4109 if (orig_skb != new_skb)
4110 dev_kfree_skb_any(new_skb);
4111 }
4112
4113 static struct sk_buff *
4114 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
4115 struct qeth_hdr **hdr, int ipv)
4116 {
4117 struct sk_buff *new_skb, *new_skb2;
4118
4119 QETH_DBF_TEXT(trace, 6, "prepskb");
4120 new_skb = skb;
4121 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4122 if (!new_skb)
4123 return NULL;
4124 new_skb2 = qeth_realloc_headroom(card, new_skb,
4125 sizeof(struct qeth_hdr));
4126 if (!new_skb2) {
4127 __qeth_free_new_skb(skb, new_skb);
4128 return NULL;
4129 }
4130 if (new_skb != skb)
4131 __qeth_free_new_skb(new_skb2, new_skb);
4132 new_skb = new_skb2;
4133 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
4134 if (*hdr == NULL) {
4135 __qeth_free_new_skb(skb, new_skb);
4136 return NULL;
4137 }
4138 return new_skb;
4139 }
4140
4141 static inline u8
4142 qeth_get_qeth_hdr_flags4(int cast_type)
4143 {
4144 if (cast_type == RTN_MULTICAST)
4145 return QETH_CAST_MULTICAST;
4146 if (cast_type == RTN_BROADCAST)
4147 return QETH_CAST_BROADCAST;
4148 return QETH_CAST_UNICAST;
4149 }
4150
4151 static inline u8
4152 qeth_get_qeth_hdr_flags6(int cast_type)
4153 {
4154 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
4155 if (cast_type == RTN_MULTICAST)
4156 return ct | QETH_CAST_MULTICAST;
4157 if (cast_type == RTN_ANYCAST)
4158 return ct | QETH_CAST_ANYCAST;
4159 if (cast_type == RTN_BROADCAST)
4160 return ct | QETH_CAST_BROADCAST;
4161 return ct | QETH_CAST_UNICAST;
4162 }
4163
4164 static void
4165 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4166 struct sk_buff *skb)
4167 {
4168 __u16 hdr_mac;
4169
4170 if (!memcmp(skb->data+QETH_HEADER_SIZE,
4171 skb->dev->broadcast,6)) { /* broadcast? */
4172 *(__u32 *)hdr->hdr.l2.flags |=
4173 QETH_LAYER2_FLAG_BROADCAST << 8;
4174 return;
4175 }
4176 hdr_mac=*((__u16*)skb->data);
4177 /* tr multicast? */
4178 switch (card->info.link_type) {
4179 case QETH_LINK_TYPE_HSTR:
4180 case QETH_LINK_TYPE_LANE_TR:
4181 if ((hdr_mac == QETH_TR_MAC_NC) ||
4182 (hdr_mac == QETH_TR_MAC_C) )
4183 *(__u32 *)hdr->hdr.l2.flags |=
4184 QETH_LAYER2_FLAG_MULTICAST << 8;
4185 else
4186 *(__u32 *)hdr->hdr.l2.flags |=
4187 QETH_LAYER2_FLAG_UNICAST << 8;
4188 break;
4189 /* eth or so multicast? */
4190 default:
4191 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4192 (hdr_mac==QETH_ETH_MAC_V6) )
4193 *(__u32 *)hdr->hdr.l2.flags |=
4194 QETH_LAYER2_FLAG_MULTICAST << 8;
4195 else
4196 *(__u32 *)hdr->hdr.l2.flags |=
4197 QETH_LAYER2_FLAG_UNICAST << 8;
4198 }
4199 }
4200
4201 static void
4202 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4203 struct sk_buff *skb, int cast_type)
4204 {
4205 memset(hdr, 0, sizeof(struct qeth_hdr));
4206 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4207
4208 /* set byte 0 to "0x02" and byte 3 to casting flags */
4209 if (cast_type==RTN_MULTICAST)
4210 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4211 else if (cast_type==RTN_BROADCAST)
4212 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4213 else
4214 qeth_layer2_get_packet_type(card, hdr, skb);
4215
4216 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4217 #ifdef CONFIG_QETH_VLAN
4218 /* VSWITCH relies on the VLAN
4219 * information to be present in
4220 * the QDIO header */
4221 if ((card->vlangrp != NULL) &&
4222 vlan_tx_tag_present(skb)) {
4223 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4224 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4225 }
4226 #endif
4227 }
4228
4229 void
4230 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4231 struct sk_buff *skb, int ipv, int cast_type)
4232 {
4233 QETH_DBF_TEXT(trace, 6, "fillhdr");
4234
4235 memset(hdr, 0, sizeof(struct qeth_hdr));
4236 if (card->options.layer2) {
4237 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4238 return;
4239 }
4240 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4241 hdr->hdr.l3.ext_flags = 0;
4242 #ifdef CONFIG_QETH_VLAN
4243 /*
4244 * before we're going to overwrite this location with next hop ip.
4245 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4246 */
4247 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4248 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4249 QETH_HDR_EXT_VLAN_FRAME :
4250 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4251 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4252 }
4253 #endif /* CONFIG_QETH_VLAN */
4254 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4255 if (ipv == 4) { /* IPv4 */
4256 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4257 memset(hdr->hdr.l3.dest_addr, 0, 12);
4258 if ((skb->dst) && (skb->dst->neighbour)) {
4259 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4260 *((u32 *) skb->dst->neighbour->primary_key);
4261 } else {
4262 /* fill in destination address used in ip header */
4263 *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4264 ip_hdr(skb)->daddr;
4265 }
4266 } else if (ipv == 6) { /* IPv6 or passthru */
4267 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4268 if ((skb->dst) && (skb->dst->neighbour)) {
4269 memcpy(hdr->hdr.l3.dest_addr,
4270 skb->dst->neighbour->primary_key, 16);
4271 } else {
4272 /* fill in destination address used in ip header */
4273 memcpy(hdr->hdr.l3.dest_addr,
4274 &ipv6_hdr(skb)->daddr, 16);
4275 }
4276 } else { /* passthrough */
4277 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4278 !memcmp(skb->data + sizeof(struct qeth_hdr) +
4279 sizeof(__u16), skb->dev->broadcast, 6)) {
4280 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4281 QETH_HDR_PASSTHRU;
4282 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4283 skb->dev->broadcast, 6)) { /* broadcast? */
4284 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4285 QETH_HDR_PASSTHRU;
4286 } else {
4287 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4288 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4289 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4290 }
4291 }
4292 }
4293
4294 static void
4295 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4296 int is_tso, int *next_element_to_fill)
4297 {
4298 int length = skb->len;
4299 int length_here;
4300 int element;
4301 char *data;
4302 int first_lap ;
4303
4304 element = *next_element_to_fill;
4305 data = skb->data;
4306 first_lap = (is_tso == 0 ? 1 : 0);
4307
4308 while (length > 0) {
4309 /* length_here is the remaining amount of data in this page */
4310 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4311 if (length < length_here)
4312 length_here = length;
4313
4314 buffer->element[element].addr = data;
4315 buffer->element[element].length = length_here;
4316 length -= length_here;
4317 if (!length) {
4318 if (first_lap)
4319 buffer->element[element].flags = 0;
4320 else
4321 buffer->element[element].flags =
4322 SBAL_FLAGS_LAST_FRAG;
4323 } else {
4324 if (first_lap)
4325 buffer->element[element].flags =
4326 SBAL_FLAGS_FIRST_FRAG;
4327 else
4328 buffer->element[element].flags =
4329 SBAL_FLAGS_MIDDLE_FRAG;
4330 }
4331 data += length_here;
4332 element++;
4333 first_lap = 0;
4334 }
4335 *next_element_to_fill = element;
4336 }
4337
4338 static int
4339 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4340 struct qeth_qdio_out_buffer *buf,
4341 struct sk_buff *skb)
4342 {
4343 struct qdio_buffer *buffer;
4344 struct qeth_hdr_tso *hdr;
4345 int flush_cnt = 0, hdr_len, large_send = 0;
4346
4347 QETH_DBF_TEXT(trace, 6, "qdfillbf");
4348
4349 buffer = buf->buffer;
4350 atomic_inc(&skb->users);
4351 skb_queue_tail(&buf->skb_list, skb);
4352
4353 hdr = (struct qeth_hdr_tso *) skb->data;
4354 /*check first on TSO ....*/
4355 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4356 int element = buf->next_element_to_fill;
4357
4358 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4359 /*fill first buffer entry only with header information */
4360 buffer->element[element].addr = skb->data;
4361 buffer->element[element].length = hdr_len;
4362 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4363 buf->next_element_to_fill++;
4364 skb->data += hdr_len;
4365 skb->len -= hdr_len;
4366 large_send = 1;
4367 }
4368 if (skb_shinfo(skb)->nr_frags == 0)
4369 __qeth_fill_buffer(skb, buffer, large_send,
4370 (int *)&buf->next_element_to_fill);
4371 else
4372 __qeth_fill_buffer_frag(skb, buffer, large_send,
4373 (int *)&buf->next_element_to_fill);
4374
4375 if (!queue->do_pack) {
4376 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4377 /* set state to PRIMED -> will be flushed */
4378 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4379 flush_cnt = 1;
4380 } else {
4381 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4382 if (queue->card->options.performance_stats)
4383 queue->card->perf_stats.skbs_sent_pack++;
4384 if (buf->next_element_to_fill >=
4385 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4386 /*
4387 * packed buffer if full -> set state PRIMED
4388 * -> will be flushed
4389 */
4390 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4391 flush_cnt = 1;
4392 }
4393 }
4394 return flush_cnt;
4395 }
4396
4397 static int
4398 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4399 struct sk_buff *skb, struct qeth_hdr *hdr,
4400 int elements_needed,
4401 struct qeth_eddp_context *ctx)
4402 {
4403 struct qeth_qdio_out_buffer *buffer;
4404 int buffers_needed = 0;
4405 int flush_cnt = 0;
4406 int index;
4407
4408 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4409
4410 /* spin until we get the queue ... */
4411 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4412 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4413 /* ... now we've got the queue */
4414 index = queue->next_buf_to_fill;
4415 buffer = &queue->bufs[queue->next_buf_to_fill];
4416 /*
4417 * check if buffer is empty to make sure that we do not 'overtake'
4418 * ourselves and try to fill a buffer that is already primed
4419 */
4420 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4421 goto out;
4422 if (ctx == NULL)
4423 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4424 QDIO_MAX_BUFFERS_PER_Q;
4425 else {
4426 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4427 if (buffers_needed < 0)
4428 goto out;
4429 queue->next_buf_to_fill =
4430 (queue->next_buf_to_fill + buffers_needed) %
4431 QDIO_MAX_BUFFERS_PER_Q;
4432 }
4433 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4434 if (ctx == NULL) {
4435 qeth_fill_buffer(queue, buffer, skb);
4436 qeth_flush_buffers(queue, 0, index, 1);
4437 } else {
4438 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4439 WARN_ON(buffers_needed != flush_cnt);
4440 qeth_flush_buffers(queue, 0, index, flush_cnt);
4441 }
4442 return 0;
4443 out:
4444 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4445 return -EBUSY;
4446 }
4447
4448 static int
4449 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4450 struct sk_buff *skb, struct qeth_hdr *hdr,
4451 int elements_needed, struct qeth_eddp_context *ctx)
4452 {
4453 struct qeth_qdio_out_buffer *buffer;
4454 int start_index;
4455 int flush_count = 0;
4456 int do_pack = 0;
4457 int tmp;
4458 int rc = 0;
4459
4460 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4461
4462 /* spin until we get the queue ... */
4463 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4464 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4465 start_index = queue->next_buf_to_fill;
4466 buffer = &queue->bufs[queue->next_buf_to_fill];
4467 /*
4468 * check if buffer is empty to make sure that we do not 'overtake'
4469 * ourselves and try to fill a buffer that is already primed
4470 */
4471 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4472 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4473 return -EBUSY;
4474 }
4475 /* check if we need to switch packing state of this queue */
4476 qeth_switch_to_packing_if_needed(queue);
4477 if (queue->do_pack){
4478 do_pack = 1;
4479 if (ctx == NULL) {
4480 /* does packet fit in current buffer? */
4481 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4482 buffer->next_element_to_fill) < elements_needed){
4483 /* ... no -> set state PRIMED */
4484 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4485 flush_count++;
4486 queue->next_buf_to_fill =
4487 (queue->next_buf_to_fill + 1) %
4488 QDIO_MAX_BUFFERS_PER_Q;
4489 buffer = &queue->bufs[queue->next_buf_to_fill];
4490 /* we did a step forward, so check buffer state
4491 * again */
4492 if (atomic_read(&buffer->state) !=
4493 QETH_QDIO_BUF_EMPTY){
4494 qeth_flush_buffers(queue, 0, start_index, flush_count);
4495 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4496 return -EBUSY;
4497 }
4498 }
4499 } else {
4500 /* check if we have enough elements (including following
4501 * free buffers) to handle eddp context */
4502 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4503 printk("eddp tx_dropped 1\n");
4504 rc = -EBUSY;
4505 goto out;
4506 }
4507 }
4508 }
4509 if (ctx == NULL)
4510 tmp = qeth_fill_buffer(queue, buffer, skb);
4511 else {
4512 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4513 if (tmp < 0) {
4514 printk("eddp tx_dropped 2\n");
4515 rc = - EBUSY;
4516 goto out;
4517 }
4518 }
4519 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4520 QDIO_MAX_BUFFERS_PER_Q;
4521 flush_count += tmp;
4522 out:
4523 if (flush_count)
4524 qeth_flush_buffers(queue, 0, start_index, flush_count);
4525 else if (!atomic_read(&queue->set_pci_flags_count))
4526 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4527 /*
4528 * queue->state will go from LOCKED -> UNLOCKED or from
4529 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4530 * (switch packing state or flush buffer to get another pci flag out).
4531 * In that case we will enter this loop
4532 */
4533 while (atomic_dec_return(&queue->state)){
4534 flush_count = 0;
4535 start_index = queue->next_buf_to_fill;
4536 /* check if we can go back to non-packing state */
4537 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4538 /*
4539 * check if we need to flush a packing buffer to get a pci
4540 * flag out on the queue
4541 */
4542 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4543 flush_count += qeth_flush_buffers_on_no_pci(queue);
4544 if (flush_count)
4545 qeth_flush_buffers(queue, 0, start_index, flush_count);
4546 }
4547 /* at this point the queue is UNLOCKED again */
4548 if (queue->card->options.performance_stats && do_pack)
4549 queue->card->perf_stats.bufs_sent_pack += flush_count;
4550
4551 return rc;
4552 }
4553
4554 static int
4555 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4556 struct sk_buff *skb, int elems)
4557 {
4558 int elements_needed = 0;
4559
4560 if (skb_shinfo(skb)->nr_frags > 0)
4561 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4562 if (elements_needed == 0)
4563 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4564 + skb->len) >> PAGE_SHIFT);
4565 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4566 PRINT_ERR("Invalid size of IP packet "
4567 "(Number=%d / Length=%d). Discarded.\n",
4568 (elements_needed+elems), skb->len);
4569 return 0;
4570 }
4571 return elements_needed;
4572 }
4573
4574 static void qeth_tx_csum(struct sk_buff *skb)
4575 {
4576 int tlen;
4577
4578 if (skb->protocol == htons(ETH_P_IP)) {
4579 tlen = ntohs(ip_hdr(skb)->tot_len) - (ip_hdr(skb)->ihl << 2);
4580 switch (ip_hdr(skb)->protocol) {
4581 case IPPROTO_TCP:
4582 tcp_hdr(skb)->check = 0;
4583 tcp_hdr(skb)->check = csum_tcpudp_magic(
4584 ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
4585 tlen, ip_hdr(skb)->protocol,
4586 skb_checksum(skb, skb_transport_offset(skb),
4587 tlen, 0));
4588 break;
4589 case IPPROTO_UDP:
4590 udp_hdr(skb)->check = 0;
4591 udp_hdr(skb)->check = csum_tcpudp_magic(
4592 ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
4593 tlen, ip_hdr(skb)->protocol,
4594 skb_checksum(skb, skb_transport_offset(skb),
4595 tlen, 0));
4596 break;
4597 }
4598 } else if (skb->protocol == htons(ETH_P_IPV6)) {
4599 switch (ipv6_hdr(skb)->nexthdr) {
4600 case IPPROTO_TCP:
4601 tcp_hdr(skb)->check = 0;
4602 tcp_hdr(skb)->check = csum_ipv6_magic(
4603 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
4604 ipv6_hdr(skb)->payload_len,
4605 ipv6_hdr(skb)->nexthdr,
4606 skb_checksum(skb, skb_transport_offset(skb),
4607 ipv6_hdr(skb)->payload_len, 0));
4608 break;
4609 case IPPROTO_UDP:
4610 udp_hdr(skb)->check = 0;
4611 udp_hdr(skb)->check = csum_ipv6_magic(
4612 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
4613 ipv6_hdr(skb)->payload_len,
4614 ipv6_hdr(skb)->nexthdr,
4615 skb_checksum(skb, skb_transport_offset(skb),
4616 ipv6_hdr(skb)->payload_len, 0));
4617 break;
4618 }
4619 }
4620 }
4621
4622 static int
4623 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4624 {
4625 int ipv = 0;
4626 int cast_type;
4627 struct qeth_qdio_out_q *queue;
4628 struct qeth_hdr *hdr = NULL;
4629 int elements_needed = 0;
4630 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4631 struct qeth_eddp_context *ctx = NULL;
4632 int tx_bytes = skb->len;
4633 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4634 unsigned short tso_size = skb_shinfo(skb)->gso_size;
4635 struct sk_buff *new_skb, *new_skb2;
4636 int rc;
4637
4638 QETH_DBF_TEXT(trace, 6, "sendpkt");
4639
4640 new_skb = skb;
4641 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4642 (skb->protocol == htons(ETH_P_IPV6)))
4643 return -EPERM;
4644 cast_type = qeth_get_cast_type(card, skb);
4645 if ((cast_type == RTN_BROADCAST) &&
4646 (card->info.broadcast_capable == 0))
4647 return -EPERM;
4648 queue = card->qdio.out_qs
4649 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4650 if (!card->options.layer2) {
4651 ipv = qeth_get_ip_version(skb);
4652 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4653 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4654 if (!new_skb)
4655 return -ENOMEM;
4656 if(card->dev->type == ARPHRD_IEEE802_TR){
4657 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4658 } else {
4659 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4660 }
4661 }
4662 }
4663 if (skb_is_gso(skb))
4664 large_send = card->options.large_send;
4665 /* check on OSN device*/
4666 if (card->info.type == QETH_CARD_TYPE_OSN)
4667 hdr = (struct qeth_hdr *)new_skb->data;
4668 /*are we able to do TSO ? */
4669 if ((large_send == QETH_LARGE_SEND_TSO) &&
4670 (cast_type == RTN_UNSPEC)) {
4671 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4672 if (rc) {
4673 __qeth_free_new_skb(skb, new_skb);
4674 return rc;
4675 }
4676 elements_needed++;
4677 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4678 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4679 if (!new_skb2) {
4680 __qeth_free_new_skb(skb, new_skb);
4681 return -EINVAL;
4682 }
4683 if (new_skb != skb)
4684 __qeth_free_new_skb(new_skb2, new_skb);
4685 new_skb = new_skb2;
4686 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4687 }
4688 if (large_send == QETH_LARGE_SEND_EDDP) {
4689 ctx = qeth_eddp_create_context(card, new_skb, hdr,
4690 skb->sk->sk_protocol);
4691 if (ctx == NULL) {
4692 __qeth_free_new_skb(skb, new_skb);
4693 PRINT_WARN("could not create eddp context\n");
4694 return -EINVAL;
4695 }
4696 } else {
4697 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4698 elements_needed);
4699 if (!elems) {
4700 __qeth_free_new_skb(skb, new_skb);
4701 return -EINVAL;
4702 }
4703 elements_needed += elems;
4704 }
4705
4706 if ((large_send == QETH_LARGE_SEND_NO) &&
4707 (skb->ip_summed == CHECKSUM_PARTIAL))
4708 qeth_tx_csum(new_skb);
4709
4710 if (card->info.type != QETH_CARD_TYPE_IQD)
4711 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4712 elements_needed, ctx);
4713 else {
4714 if ((skb->protocol == htons(ETH_P_ARP)) &&
4715 (card->dev->flags & IFF_NOARP)) {
4716 __qeth_free_new_skb(skb, new_skb);
4717 return -EPERM;
4718 }
4719 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4720 elements_needed, ctx);
4721 }
4722 if (!rc) {
4723 card->stats.tx_packets++;
4724 card->stats.tx_bytes += tx_bytes;
4725 if (new_skb != skb)
4726 dev_kfree_skb_any(skb);
4727 if (card->options.performance_stats) {
4728 if (tso_size &&
4729 !(large_send == QETH_LARGE_SEND_NO)) {
4730 card->perf_stats.large_send_bytes += tx_bytes;
4731 card->perf_stats.large_send_cnt++;
4732 }
4733 if (nr_frags > 0) {
4734 card->perf_stats.sg_skbs_sent++;
4735 /* nr_frags + skb->data */
4736 card->perf_stats.sg_frags_sent +=
4737 nr_frags + 1;
4738 }
4739 }
4740 } else {
4741 card->stats.tx_dropped++;
4742 __qeth_free_new_skb(skb, new_skb);
4743 }
4744 if (ctx != NULL) {
4745 /* drop creator's reference */
4746 qeth_eddp_put_context(ctx);
4747 /* free skb; it's not referenced by a buffer */
4748 if (!rc)
4749 dev_kfree_skb_any(new_skb);
4750 }
4751 return rc;
4752 }
4753
4754 static int
4755 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4756 {
4757 struct qeth_card *card = (struct qeth_card *) dev->priv;
4758 int rc = 0;
4759
4760 switch(regnum){
4761 case MII_BMCR: /* Basic mode control register */
4762 rc = BMCR_FULLDPLX;
4763 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4764 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4765 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4766 rc |= BMCR_SPEED100;
4767 break;
4768 case MII_BMSR: /* Basic mode status register */
4769 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4770 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4771 BMSR_100BASE4;
4772 break;
4773 case MII_PHYSID1: /* PHYS ID 1 */
4774 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4775 dev->dev_addr[2];
4776 rc = (rc >> 5) & 0xFFFF;
4777 break;
4778 case MII_PHYSID2: /* PHYS ID 2 */
4779 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4780 break;
4781 case MII_ADVERTISE: /* Advertisement control reg */
4782 rc = ADVERTISE_ALL;
4783 break;
4784 case MII_LPA: /* Link partner ability reg */
4785 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4786 LPA_100BASE4 | LPA_LPACK;
4787 break;
4788 case MII_EXPANSION: /* Expansion register */
4789 break;
4790 case MII_DCOUNTER: /* disconnect counter */
4791 break;
4792 case MII_FCSCOUNTER: /* false carrier counter */
4793 break;
4794 case MII_NWAYTEST: /* N-way auto-neg test register */
4795 break;
4796 case MII_RERRCOUNTER: /* rx error counter */
4797 rc = card->stats.rx_errors;
4798 break;
4799 case MII_SREVISION: /* silicon revision */
4800 break;
4801 case MII_RESV1: /* reserved 1 */
4802 break;
4803 case MII_LBRERROR: /* loopback, rx, bypass error */
4804 break;
4805 case MII_PHYADDR: /* physical address */
4806 break;
4807 case MII_RESV2: /* reserved 2 */
4808 break;
4809 case MII_TPISTATUS: /* TPI status for 10mbps */
4810 break;
4811 case MII_NCONFIG: /* network interface config */
4812 break;
4813 default:
4814 break;
4815 }
4816 return rc;
4817 }
4818
4819
4820 static const char *
4821 qeth_arp_get_error_cause(int *rc)
4822 {
4823 switch (*rc) {
4824 case QETH_IPA_ARP_RC_FAILED:
4825 *rc = -EIO;
4826 return "operation failed";
4827 case QETH_IPA_ARP_RC_NOTSUPP:
4828 *rc = -EOPNOTSUPP;
4829 return "operation not supported";
4830 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4831 *rc = -EINVAL;
4832 return "argument out of range";
4833 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4834 *rc = -EOPNOTSUPP;
4835 return "query operation not supported";
4836 case QETH_IPA_ARP_RC_Q_NO_DATA:
4837 *rc = -ENOENT;
4838 return "no query data available";
4839 default:
4840 return "unknown error";
4841 }
4842 }
4843
4844 static int
4845 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4846 __u16, long);
4847
4848 static int
4849 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4850 {
4851 int tmp;
4852 int rc;
4853
4854 QETH_DBF_TEXT(trace,3,"arpstnoe");
4855
4856 /*
4857 * currently GuestLAN only supports the ARP assist function
4858 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4859 * thus we say EOPNOTSUPP for this ARP function
4860 */
4861 if (card->info.guestlan)
4862 return -EOPNOTSUPP;
4863 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4864 PRINT_WARN("ARP processing not supported "
4865 "on %s!\n", QETH_CARD_IFNAME(card));
4866 return -EOPNOTSUPP;
4867 }
4868 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4869 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4870 no_entries);
4871 if (rc) {
4872 tmp = rc;
4873 PRINT_WARN("Could not set number of ARP entries on %s: "
4874 "%s (0x%x/%d)\n",
4875 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4876 tmp, tmp);
4877 }
4878 return rc;
4879 }
4880
4881 static void
4882 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4883 struct qeth_arp_query_data *qdata,
4884 int entry_size, int uentry_size)
4885 {
4886 char *entry_ptr;
4887 char *uentry_ptr;
4888 int i;
4889
4890 entry_ptr = (char *)&qdata->data;
4891 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4892 for (i = 0; i < qdata->no_entries; ++i){
4893 /* strip off 32 bytes "media specific information" */
4894 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4895 entry_ptr += entry_size;
4896 uentry_ptr += uentry_size;
4897 }
4898 }
4899
4900 static int
4901 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4902 unsigned long data)
4903 {
4904 struct qeth_ipa_cmd *cmd;
4905 struct qeth_arp_query_data *qdata;
4906 struct qeth_arp_query_info *qinfo;
4907 int entry_size;
4908 int uentry_size;
4909 int i;
4910
4911 QETH_DBF_TEXT(trace,4,"arpquecb");
4912
4913 qinfo = (struct qeth_arp_query_info *) reply->param;
4914 cmd = (struct qeth_ipa_cmd *) data;
4915 if (cmd->hdr.return_code) {
4916 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4917 return 0;
4918 }
4919 if (cmd->data.setassparms.hdr.return_code) {
4920 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4921 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4922 return 0;
4923 }
4924 qdata = &cmd->data.setassparms.data.query_arp;
4925 switch(qdata->reply_bits){
4926 case 5:
4927 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4928 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4929 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4930 break;
4931 case 7:
4932 /* fall through to default */
4933 default:
4934 /* tr is the same as eth -> entry7 */
4935 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4936 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4937 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4938 break;
4939 }
4940 /* check if there is enough room in userspace */
4941 if ((qinfo->udata_len - qinfo->udata_offset) <
4942 qdata->no_entries * uentry_size){
4943 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4944 cmd->hdr.return_code = -ENOMEM;
4945 PRINT_WARN("query ARP user space buffer is too small for "
4946 "the returned number of ARP entries. "
4947 "Aborting query!\n");
4948 goto out_error;
4949 }
4950 QETH_DBF_TEXT_(trace, 4, "anore%i",
4951 cmd->data.setassparms.hdr.number_of_replies);
4952 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4953 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4954
4955 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4956 /* strip off "media specific information" */
4957 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4958 uentry_size);
4959 } else
4960 /*copy entries to user buffer*/
4961 memcpy(qinfo->udata + qinfo->udata_offset,
4962 (char *)&qdata->data, qdata->no_entries*uentry_size);
4963
4964 qinfo->no_entries += qdata->no_entries;
4965 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4966 /* check if all replies received ... */
4967 if (cmd->data.setassparms.hdr.seq_no <
4968 cmd->data.setassparms.hdr.number_of_replies)
4969 return 1;
4970 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4971 /* keep STRIP_ENTRIES flag so the user program can distinguish
4972 * stripped entries from normal ones */
4973 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4974 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4975 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4976 return 0;
4977 out_error:
4978 i = 0;
4979 memcpy(qinfo->udata, &i, 4);
4980 return 0;
4981 }
4982
4983 static int
4984 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4985 int len, int (*reply_cb)(struct qeth_card *,
4986 struct qeth_reply *,
4987 unsigned long),
4988 void *reply_param)
4989 {
4990 QETH_DBF_TEXT(trace,4,"sendarp");
4991
4992 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4993 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4994 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4995 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4996 reply_cb, reply_param);
4997 }
4998
4999 static int
5000 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
5001 int len, int (*reply_cb)(struct qeth_card *,
5002 struct qeth_reply *,
5003 unsigned long),
5004 void *reply_param)
5005 {
5006 u16 s1, s2;
5007
5008 QETH_DBF_TEXT(trace,4,"sendsnmp");
5009
5010 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
5011 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
5012 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
5013 /* adjust PDU length fields in IPA_PDU_HEADER */
5014 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
5015 s2 = (u32) len;
5016 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
5017 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
5018 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
5019 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
5020 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
5021 reply_cb, reply_param);
5022 }
5023
5024 static struct qeth_cmd_buffer *
5025 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
5026 __u16, __u16, enum qeth_prot_versions);
5027 static int
5028 qeth_arp_query(struct qeth_card *card, char __user *udata)
5029 {
5030 struct qeth_cmd_buffer *iob;
5031 struct qeth_arp_query_info qinfo = {0, };
5032 int tmp;
5033 int rc;
5034
5035 QETH_DBF_TEXT(trace,3,"arpquery");
5036
5037 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
5038 IPA_ARP_PROCESSING)) {
5039 PRINT_WARN("ARP processing not supported "
5040 "on %s!\n", QETH_CARD_IFNAME(card));
5041 return -EOPNOTSUPP;
5042 }
5043 /* get size of userspace buffer and mask_bits -> 6 bytes */
5044 if (copy_from_user(&qinfo, udata, 6))
5045 return -EFAULT;
5046 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
5047 return -ENOMEM;
5048 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
5049 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5050 IPA_CMD_ASS_ARP_QUERY_INFO,
5051 sizeof(int),QETH_PROT_IPV4);
5052
5053 rc = qeth_send_ipa_arp_cmd(card, iob,
5054 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
5055 qeth_arp_query_cb, (void *)&qinfo);
5056 if (rc) {
5057 tmp = rc;
5058 PRINT_WARN("Error while querying ARP cache on %s: %s "
5059 "(0x%x/%d)\n",
5060 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5061 tmp, tmp);
5062 if (copy_to_user(udata, qinfo.udata, 4))
5063 rc = -EFAULT;
5064 } else {
5065 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5066 rc = -EFAULT;
5067 }
5068 kfree(qinfo.udata);
5069 return rc;
5070 }
5071
5072 /**
5073 * SNMP command callback
5074 */
5075 static int
5076 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
5077 unsigned long sdata)
5078 {
5079 struct qeth_ipa_cmd *cmd;
5080 struct qeth_arp_query_info *qinfo;
5081 struct qeth_snmp_cmd *snmp;
5082 unsigned char *data;
5083 __u16 data_len;
5084
5085 QETH_DBF_TEXT(trace,3,"snpcmdcb");
5086
5087 cmd = (struct qeth_ipa_cmd *) sdata;
5088 data = (unsigned char *)((char *)cmd - reply->offset);
5089 qinfo = (struct qeth_arp_query_info *) reply->param;
5090 snmp = &cmd->data.setadapterparms.data.snmp;
5091
5092 if (cmd->hdr.return_code) {
5093 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
5094 return 0;
5095 }
5096 if (cmd->data.setadapterparms.hdr.return_code) {
5097 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5098 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
5099 return 0;
5100 }
5101 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
5102 if (cmd->data.setadapterparms.hdr.seq_no == 1)
5103 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
5104 else
5105 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
5106
5107 /* check if there is enough room in userspace */
5108 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
5109 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
5110 cmd->hdr.return_code = -ENOMEM;
5111 return 0;
5112 }
5113 QETH_DBF_TEXT_(trace, 4, "snore%i",
5114 cmd->data.setadapterparms.hdr.used_total);
5115 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
5116 /*copy entries to user buffer*/
5117 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
5118 memcpy(qinfo->udata + qinfo->udata_offset,
5119 (char *)snmp,
5120 data_len + offsetof(struct qeth_snmp_cmd,data));
5121 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
5122 } else {
5123 memcpy(qinfo->udata + qinfo->udata_offset,
5124 (char *)&snmp->request, data_len);
5125 }
5126 qinfo->udata_offset += data_len;
5127 /* check if all replies received ... */
5128 QETH_DBF_TEXT_(trace, 4, "srtot%i",
5129 cmd->data.setadapterparms.hdr.used_total);
5130 QETH_DBF_TEXT_(trace, 4, "srseq%i",
5131 cmd->data.setadapterparms.hdr.seq_no);
5132 if (cmd->data.setadapterparms.hdr.seq_no <
5133 cmd->data.setadapterparms.hdr.used_total)
5134 return 1;
5135 return 0;
5136 }
5137
5138 static struct qeth_cmd_buffer *
5139 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
5140 enum qeth_prot_versions );
5141
5142 static struct qeth_cmd_buffer *
5143 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
5144 {
5145 struct qeth_cmd_buffer *iob;
5146 struct qeth_ipa_cmd *cmd;
5147
5148 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
5149 QETH_PROT_IPV4);
5150 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5151 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
5152 cmd->data.setadapterparms.hdr.command_code = command;
5153 cmd->data.setadapterparms.hdr.used_total = 1;
5154 cmd->data.setadapterparms.hdr.seq_no = 1;
5155
5156 return iob;
5157 }
5158
5159 /**
5160 * function to send SNMP commands to OSA-E card
5161 */
5162 static int
5163 qeth_snmp_command(struct qeth_card *card, char __user *udata)
5164 {
5165 struct qeth_cmd_buffer *iob;
5166 struct qeth_ipa_cmd *cmd;
5167 struct qeth_snmp_ureq *ureq;
5168 int req_len;
5169 struct qeth_arp_query_info qinfo = {0, };
5170 int rc = 0;
5171
5172 QETH_DBF_TEXT(trace,3,"snmpcmd");
5173
5174 if (card->info.guestlan)
5175 return -EOPNOTSUPP;
5176
5177 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
5178 (!card->options.layer2) ) {
5179 PRINT_WARN("SNMP Query MIBS not supported "
5180 "on %s!\n", QETH_CARD_IFNAME(card));
5181 return -EOPNOTSUPP;
5182 }
5183 /* skip 4 bytes (data_len struct member) to get req_len */
5184 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
5185 return -EFAULT;
5186 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
5187 if (!ureq) {
5188 QETH_DBF_TEXT(trace, 2, "snmpnome");
5189 return -ENOMEM;
5190 }
5191 if (copy_from_user(ureq, udata,
5192 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
5193 kfree(ureq);
5194 return -EFAULT;
5195 }
5196 qinfo.udata_len = ureq->hdr.data_len;
5197 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
5198 kfree(ureq);
5199 return -ENOMEM;
5200 }
5201 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5202
5203 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5204 QETH_SNMP_SETADP_CMDLENGTH + req_len);
5205 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5206 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5207 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5208 qeth_snmp_command_cb, (void *)&qinfo);
5209 if (rc)
5210 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5211 QETH_CARD_IFNAME(card), rc);
5212 else {
5213 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5214 rc = -EFAULT;
5215 }
5216
5217 kfree(ureq);
5218 kfree(qinfo.udata);
5219 return rc;
5220 }
5221
5222 static int
5223 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5224 unsigned long);
5225
5226 static int
5227 qeth_default_setadapterparms_cb(struct qeth_card *card,
5228 struct qeth_reply *reply,
5229 unsigned long data);
5230 static int
5231 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5232 __u16, long,
5233 int (*reply_cb)
5234 (struct qeth_card *, struct qeth_reply *, unsigned long),
5235 void *reply_param);
5236
5237 static int
5238 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5239 {
5240 struct qeth_cmd_buffer *iob;
5241 char buf[16];
5242 int tmp;
5243 int rc;
5244
5245 QETH_DBF_TEXT(trace,3,"arpadent");
5246
5247 /*
5248 * currently GuestLAN only supports the ARP assist function
5249 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5250 * thus we say EOPNOTSUPP for this ARP function
5251 */
5252 if (card->info.guestlan)
5253 return -EOPNOTSUPP;
5254 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5255 PRINT_WARN("ARP processing not supported "
5256 "on %s!\n", QETH_CARD_IFNAME(card));
5257 return -EOPNOTSUPP;
5258 }
5259
5260 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5261 IPA_CMD_ASS_ARP_ADD_ENTRY,
5262 sizeof(struct qeth_arp_cache_entry),
5263 QETH_PROT_IPV4);
5264 rc = qeth_send_setassparms(card, iob,
5265 sizeof(struct qeth_arp_cache_entry),
5266 (unsigned long) entry,
5267 qeth_default_setassparms_cb, NULL);
5268 if (rc) {
5269 tmp = rc;
5270 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5271 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5272 "%s (0x%x/%d)\n",
5273 buf, QETH_CARD_IFNAME(card),
5274 qeth_arp_get_error_cause(&rc), tmp, tmp);
5275 }
5276 return rc;
5277 }
5278
5279 static int
5280 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5281 {
5282 struct qeth_cmd_buffer *iob;
5283 char buf[16] = {0, };
5284 int tmp;
5285 int rc;
5286
5287 QETH_DBF_TEXT(trace,3,"arprment");
5288
5289 /*
5290 * currently GuestLAN only supports the ARP assist function
5291 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5292 * thus we say EOPNOTSUPP for this ARP function
5293 */
5294 if (card->info.guestlan)
5295 return -EOPNOTSUPP;
5296 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5297 PRINT_WARN("ARP processing not supported "
5298 "on %s!\n", QETH_CARD_IFNAME(card));
5299 return -EOPNOTSUPP;
5300 }
5301 memcpy(buf, entry, 12);
5302 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5303 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5304 12,
5305 QETH_PROT_IPV4);
5306 rc = qeth_send_setassparms(card, iob,
5307 12, (unsigned long)buf,
5308 qeth_default_setassparms_cb, NULL);
5309 if (rc) {
5310 tmp = rc;
5311 memset(buf, 0, 16);
5312 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5313 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5314 "%s (0x%x/%d)\n",
5315 buf, QETH_CARD_IFNAME(card),
5316 qeth_arp_get_error_cause(&rc), tmp, tmp);
5317 }
5318 return rc;
5319 }
5320
5321 static int
5322 qeth_arp_flush_cache(struct qeth_card *card)
5323 {
5324 int rc;
5325 int tmp;
5326
5327 QETH_DBF_TEXT(trace,3,"arpflush");
5328
5329 /*
5330 * currently GuestLAN only supports the ARP assist function
5331 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5332 * thus we say EOPNOTSUPP for this ARP function
5333 */
5334 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5335 return -EOPNOTSUPP;
5336 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5337 PRINT_WARN("ARP processing not supported "
5338 "on %s!\n", QETH_CARD_IFNAME(card));
5339 return -EOPNOTSUPP;
5340 }
5341 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5342 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5343 if (rc){
5344 tmp = rc;
5345 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5346 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5347 tmp, tmp);
5348 }
5349 return rc;
5350 }
5351
5352 static int
5353 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5354 {
5355 struct qeth_card *card = (struct qeth_card *)dev->priv;
5356 struct qeth_arp_cache_entry arp_entry;
5357 struct mii_ioctl_data *mii_data;
5358 int rc = 0;
5359
5360 if (!card)
5361 return -ENODEV;
5362
5363 if ((card->state != CARD_STATE_UP) &&
5364 (card->state != CARD_STATE_SOFTSETUP))
5365 return -ENODEV;
5366
5367 if (card->info.type == QETH_CARD_TYPE_OSN)
5368 return -EPERM;
5369
5370 switch (cmd){
5371 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5372 if ( !capable(CAP_NET_ADMIN) ||
5373 (card->options.layer2) ) {
5374 rc = -EPERM;
5375 break;
5376 }
5377 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5378 break;
5379 case SIOC_QETH_ARP_QUERY_INFO:
5380 if ( !capable(CAP_NET_ADMIN) ||
5381 (card->options.layer2) ) {
5382 rc = -EPERM;
5383 break;
5384 }
5385 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5386 break;
5387 case SIOC_QETH_ARP_ADD_ENTRY:
5388 if ( !capable(CAP_NET_ADMIN) ||
5389 (card->options.layer2) ) {
5390 rc = -EPERM;
5391 break;
5392 }
5393 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5394 sizeof(struct qeth_arp_cache_entry)))
5395 rc = -EFAULT;
5396 else
5397 rc = qeth_arp_add_entry(card, &arp_entry);
5398 break;
5399 case SIOC_QETH_ARP_REMOVE_ENTRY:
5400 if ( !capable(CAP_NET_ADMIN) ||
5401 (card->options.layer2) ) {
5402 rc = -EPERM;
5403 break;
5404 }
5405 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5406 sizeof(struct qeth_arp_cache_entry)))
5407 rc = -EFAULT;
5408 else
5409 rc = qeth_arp_remove_entry(card, &arp_entry);
5410 break;
5411 case SIOC_QETH_ARP_FLUSH_CACHE:
5412 if ( !capable(CAP_NET_ADMIN) ||
5413 (card->options.layer2) ) {
5414 rc = -EPERM;
5415 break;
5416 }
5417 rc = qeth_arp_flush_cache(card);
5418 break;
5419 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5420 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5421 break;
5422 case SIOC_QETH_GET_CARD_TYPE:
5423 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5424 !card->info.guestlan)
5425 return 1;
5426 return 0;
5427 break;
5428 case SIOCGMIIPHY:
5429 mii_data = if_mii(rq);
5430 mii_data->phy_id = 0;
5431 break;
5432 case SIOCGMIIREG:
5433 mii_data = if_mii(rq);
5434 if (mii_data->phy_id != 0)
5435 rc = -EINVAL;
5436 else
5437 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5438 mii_data->reg_num);
5439 break;
5440 default:
5441 rc = -EOPNOTSUPP;
5442 }
5443 if (rc)
5444 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5445 return rc;
5446 }
5447
5448 static struct net_device_stats *
5449 qeth_get_stats(struct net_device *dev)
5450 {
5451 struct qeth_card *card;
5452
5453 card = (struct qeth_card *) (dev->priv);
5454
5455 QETH_DBF_TEXT(trace,5,"getstat");
5456
5457 return &card->stats;
5458 }
5459
5460 static int
5461 qeth_change_mtu(struct net_device *dev, int new_mtu)
5462 {
5463 struct qeth_card *card;
5464 char dbf_text[15];
5465
5466 card = (struct qeth_card *) (dev->priv);
5467
5468 QETH_DBF_TEXT(trace,4,"chgmtu");
5469 sprintf(dbf_text, "%8x", new_mtu);
5470 QETH_DBF_TEXT(trace,4,dbf_text);
5471
5472 if (new_mtu < 64)
5473 return -EINVAL;
5474 if (new_mtu > 65535)
5475 return -EINVAL;
5476 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5477 (!qeth_mtu_is_valid(card, new_mtu)))
5478 return -EINVAL;
5479 dev->mtu = new_mtu;
5480 return 0;
5481 }
5482
5483 #ifdef CONFIG_QETH_VLAN
5484 static void
5485 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5486 {
5487 struct qeth_card *card;
5488 unsigned long flags;
5489
5490 QETH_DBF_TEXT(trace,4,"vlanreg");
5491
5492 card = (struct qeth_card *) dev->priv;
5493 spin_lock_irqsave(&card->vlanlock, flags);
5494 card->vlangrp = grp;
5495 spin_unlock_irqrestore(&card->vlanlock, flags);
5496 }
5497
5498 static void
5499 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5500 unsigned short vid)
5501 {
5502 int i;
5503 struct sk_buff *skb;
5504 struct sk_buff_head tmp_list;
5505
5506 skb_queue_head_init(&tmp_list);
5507 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5508 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5509 while ((skb = skb_dequeue(&buf->skb_list))){
5510 if (vlan_tx_tag_present(skb) &&
5511 (vlan_tx_tag_get(skb) == vid)) {
5512 atomic_dec(&skb->users);
5513 dev_kfree_skb(skb);
5514 } else
5515 skb_queue_tail(&tmp_list, skb);
5516 }
5517 }
5518 while ((skb = skb_dequeue(&tmp_list)))
5519 skb_queue_tail(&buf->skb_list, skb);
5520 }
5521
5522 static void
5523 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5524 {
5525 int i, j;
5526
5527 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5528 for (i = 0; i < card->qdio.no_out_queues; ++i){
5529 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5530 qeth_free_vlan_buffer(card, &card->qdio.
5531 out_qs[i]->bufs[j], vid);
5532 }
5533 }
5534
5535 static void
5536 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5537 {
5538 struct in_device *in_dev;
5539 struct in_ifaddr *ifa;
5540 struct qeth_ipaddr *addr;
5541
5542 QETH_DBF_TEXT(trace, 4, "frvaddr4");
5543
5544 rcu_read_lock();
5545 in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
5546 if (!in_dev)
5547 goto out;
5548 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5549 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5550 if (addr){
5551 addr->u.a4.addr = ifa->ifa_address;
5552 addr->u.a4.mask = ifa->ifa_mask;
5553 addr->type = QETH_IP_TYPE_NORMAL;
5554 if (!qeth_delete_ip(card, addr))
5555 kfree(addr);
5556 }
5557 }
5558 out:
5559 rcu_read_unlock();
5560 }
5561
5562 static void
5563 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5564 {
5565 #ifdef CONFIG_QETH_IPV6
5566 struct inet6_dev *in6_dev;
5567 struct inet6_ifaddr *ifa;
5568 struct qeth_ipaddr *addr;
5569
5570 QETH_DBF_TEXT(trace, 4, "frvaddr6");
5571
5572 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
5573 if (!in6_dev)
5574 return;
5575 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5576 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5577 if (addr){
5578 memcpy(&addr->u.a6.addr, &ifa->addr,
5579 sizeof(struct in6_addr));
5580 addr->u.a6.pfxlen = ifa->prefix_len;
5581 addr->type = QETH_IP_TYPE_NORMAL;
5582 if (!qeth_delete_ip(card, addr))
5583 kfree(addr);
5584 }
5585 }
5586 in6_dev_put(in6_dev);
5587 #endif /* CONFIG_QETH_IPV6 */
5588 }
5589
5590 static void
5591 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5592 {
5593 if (card->options.layer2 || !card->vlangrp)
5594 return;
5595 qeth_free_vlan_addresses4(card, vid);
5596 qeth_free_vlan_addresses6(card, vid);
5597 }
5598
5599 static int
5600 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5601 struct qeth_reply *reply,
5602 unsigned long data)
5603 {
5604 struct qeth_ipa_cmd *cmd;
5605
5606 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5607 cmd = (struct qeth_ipa_cmd *) data;
5608 if (cmd->hdr.return_code) {
5609 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5610 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5611 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5612 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5613 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5614 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5615 }
5616 return 0;
5617 }
5618
5619 static int
5620 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5621 enum qeth_ipa_cmds ipacmd)
5622 {
5623 struct qeth_ipa_cmd *cmd;
5624 struct qeth_cmd_buffer *iob;
5625
5626 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5627 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5628 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5629 cmd->data.setdelvlan.vlan_id = i;
5630 return qeth_send_ipa_cmd(card, iob,
5631 qeth_layer2_send_setdelvlan_cb, NULL);
5632 }
5633
5634 static void
5635 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5636 {
5637 unsigned short i;
5638
5639 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5640
5641 if (!card->vlangrp)
5642 return;
5643 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5644 if (vlan_group_get_device(card->vlangrp, i) == NULL)
5645 continue;
5646 if (clear)
5647 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5648 else
5649 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5650 }
5651 }
5652
5653 /*add_vid is layer 2 used only ....*/
5654 static void
5655 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5656 {
5657 struct qeth_card *card;
5658
5659 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5660
5661 card = (struct qeth_card *) dev->priv;
5662 if (!card->options.layer2)
5663 return;
5664 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5665 }
5666
5667 /*... kill_vid used for both modes*/
5668 static void
5669 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5670 {
5671 struct qeth_card *card;
5672 unsigned long flags;
5673
5674 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5675
5676 card = (struct qeth_card *) dev->priv;
5677 /* free all skbs for the vlan device */
5678 qeth_free_vlan_skbs(card, vid);
5679 spin_lock_irqsave(&card->vlanlock, flags);
5680 /* unregister IP addresses of vlan device */
5681 qeth_free_vlan_addresses(card, vid);
5682 vlan_group_set_device(card->vlangrp, vid, NULL);
5683 spin_unlock_irqrestore(&card->vlanlock, flags);
5684 if (card->options.layer2)
5685 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5686 qeth_set_multicast_list(card->dev);
5687 }
5688 #endif
5689 /**
5690 * Examine hardware response to SET_PROMISC_MODE
5691 */
5692 static int
5693 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5694 struct qeth_reply *reply,
5695 unsigned long data)
5696 {
5697 struct qeth_ipa_cmd *cmd;
5698 struct qeth_ipacmd_setadpparms *setparms;
5699
5700 QETH_DBF_TEXT(trace,4,"prmadpcb");
5701
5702 cmd = (struct qeth_ipa_cmd *) data;
5703 setparms = &(cmd->data.setadapterparms);
5704
5705 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5706 if (cmd->hdr.return_code) {
5707 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5708 setparms->data.mode = SET_PROMISC_MODE_OFF;
5709 }
5710 card->info.promisc_mode = setparms->data.mode;
5711 return 0;
5712 }
5713 /*
5714 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5715 */
5716 static void
5717 qeth_setadp_promisc_mode(struct qeth_card *card)
5718 {
5719 enum qeth_ipa_promisc_modes mode;
5720 struct net_device *dev = card->dev;
5721 struct qeth_cmd_buffer *iob;
5722 struct qeth_ipa_cmd *cmd;
5723
5724 QETH_DBF_TEXT(trace, 4, "setprom");
5725
5726 if (((dev->flags & IFF_PROMISC) &&
5727 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5728 (!(dev->flags & IFF_PROMISC) &&
5729 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5730 return;
5731 mode = SET_PROMISC_MODE_OFF;
5732 if (dev->flags & IFF_PROMISC)
5733 mode = SET_PROMISC_MODE_ON;
5734 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5735
5736 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5737 sizeof(struct qeth_ipacmd_setadpparms));
5738 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5739 cmd->data.setadapterparms.data.mode = mode;
5740 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5741 }
5742
5743 /**
5744 * set multicast address on card
5745 */
5746 static void
5747 qeth_set_multicast_list(struct net_device *dev)
5748 {
5749 struct qeth_card *card = (struct qeth_card *) dev->priv;
5750
5751 if (card->info.type == QETH_CARD_TYPE_OSN)
5752 return ;
5753
5754 QETH_DBF_TEXT(trace, 3, "setmulti");
5755 qeth_delete_mc_addresses(card);
5756 if (card->options.layer2) {
5757 qeth_layer2_add_multicast(card);
5758 goto out;
5759 }
5760 qeth_add_multicast_ipv4(card);
5761 #ifdef CONFIG_QETH_IPV6
5762 qeth_add_multicast_ipv6(card);
5763 #endif
5764 out:
5765 qeth_set_ip_addr_list(card);
5766 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5767 return;
5768 qeth_setadp_promisc_mode(card);
5769 }
5770
5771 static int
5772 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5773 {
5774 return 0;
5775 }
5776
5777 static void
5778 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5779 {
5780 if (dev->type == ARPHRD_IEEE802_TR)
5781 ip_tr_mc_map(ipm, mac);
5782 else
5783 ip_eth_mc_map(ipm, mac);
5784 }
5785
5786 static struct qeth_ipaddr *
5787 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5788 {
5789 struct qeth_ipaddr *addr;
5790
5791 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5792 if (addr == NULL) {
5793 PRINT_WARN("Not enough memory to add address\n");
5794 return NULL;
5795 }
5796 addr->type = QETH_IP_TYPE_NORMAL;
5797 addr->proto = prot;
5798 return addr;
5799 }
5800
5801 int
5802 qeth_osn_assist(struct net_device *dev,
5803 void *data,
5804 int data_len)
5805 {
5806 struct qeth_cmd_buffer *iob;
5807 struct qeth_card *card;
5808 int rc;
5809
5810 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5811 if (!dev)
5812 return -ENODEV;
5813 card = (struct qeth_card *)dev->priv;
5814 if (!card)
5815 return -ENODEV;
5816 if ((card->state != CARD_STATE_UP) &&
5817 (card->state != CARD_STATE_SOFTSETUP))
5818 return -ENODEV;
5819 iob = qeth_wait_for_buffer(&card->write);
5820 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5821 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5822 return rc;
5823 }
5824
5825 static struct net_device *
5826 qeth_netdev_by_devno(unsigned char *read_dev_no)
5827 {
5828 struct qeth_card *card;
5829 struct net_device *ndev;
5830 unsigned char *readno;
5831 __u16 temp_dev_no, card_dev_no;
5832 char *endp;
5833 unsigned long flags;
5834
5835 ndev = NULL;
5836 memcpy(&temp_dev_no, read_dev_no, 2);
5837 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5838 list_for_each_entry(card, &qeth_card_list.list, list) {
5839 readno = CARD_RDEV_ID(card);
5840 readno += (strlen(readno) - 4);
5841 card_dev_no = simple_strtoul(readno, &endp, 16);
5842 if (card_dev_no == temp_dev_no) {
5843 ndev = card->dev;
5844 break;
5845 }
5846 }
5847 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5848 return ndev;
5849 }
5850
5851 int
5852 qeth_osn_register(unsigned char *read_dev_no,
5853 struct net_device **dev,
5854 int (*assist_cb)(struct net_device *, void *),
5855 int (*data_cb)(struct sk_buff *))
5856 {
5857 struct qeth_card * card;
5858
5859 QETH_DBF_TEXT(trace, 2, "osnreg");
5860 *dev = qeth_netdev_by_devno(read_dev_no);
5861 if (*dev == NULL)
5862 return -ENODEV;
5863 card = (struct qeth_card *)(*dev)->priv;
5864 if (!card)
5865 return -ENODEV;
5866 if ((assist_cb == NULL) || (data_cb == NULL))
5867 return -EINVAL;
5868 card->osn_info.assist_cb = assist_cb;
5869 card->osn_info.data_cb = data_cb;
5870 return 0;
5871 }
5872
5873 void
5874 qeth_osn_deregister(struct net_device * dev)
5875 {
5876 struct qeth_card *card;
5877
5878 QETH_DBF_TEXT(trace, 2, "osndereg");
5879 if (!dev)
5880 return;
5881 card = (struct qeth_card *)dev->priv;
5882 if (!card)
5883 return;
5884 card->osn_info.assist_cb = NULL;
5885 card->osn_info.data_cb = NULL;
5886 return;
5887 }
5888
5889 static void
5890 qeth_delete_mc_addresses(struct qeth_card *card)
5891 {
5892 struct qeth_ipaddr *iptodo;
5893 unsigned long flags;
5894
5895 QETH_DBF_TEXT(trace,4,"delmc");
5896 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5897 if (!iptodo) {
5898 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5899 return;
5900 }
5901 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5902 spin_lock_irqsave(&card->ip_lock, flags);
5903 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5904 kfree(iptodo);
5905 spin_unlock_irqrestore(&card->ip_lock, flags);
5906 }
5907
5908 static void
5909 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5910 {
5911 struct qeth_ipaddr *ipm;
5912 struct ip_mc_list *im4;
5913 char buf[MAX_ADDR_LEN];
5914
5915 QETH_DBF_TEXT(trace,4,"addmc");
5916 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5917 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5918 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5919 if (!ipm)
5920 continue;
5921 ipm->u.a4.addr = im4->multiaddr;
5922 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5923 ipm->is_multicast = 1;
5924 if (!qeth_add_ip(card,ipm))
5925 kfree(ipm);
5926 }
5927 }
5928
5929 static inline void
5930 qeth_add_vlan_mc(struct qeth_card *card)
5931 {
5932 #ifdef CONFIG_QETH_VLAN
5933 struct in_device *in_dev;
5934 struct vlan_group *vg;
5935 int i;
5936
5937 QETH_DBF_TEXT(trace,4,"addmcvl");
5938 if ( ((card->options.layer2 == 0) &&
5939 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5940 (card->vlangrp == NULL) )
5941 return ;
5942
5943 vg = card->vlangrp;
5944 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5945 struct net_device *netdev = vlan_group_get_device(vg, i);
5946 if (netdev == NULL ||
5947 !(netdev->flags & IFF_UP))
5948 continue;
5949 in_dev = in_dev_get(netdev);
5950 if (!in_dev)
5951 continue;
5952 read_lock(&in_dev->mc_list_lock);
5953 qeth_add_mc(card,in_dev);
5954 read_unlock(&in_dev->mc_list_lock);
5955 in_dev_put(in_dev);
5956 }
5957 #endif
5958 }
5959
5960 static void
5961 qeth_add_multicast_ipv4(struct qeth_card *card)
5962 {
5963 struct in_device *in4_dev;
5964
5965 QETH_DBF_TEXT(trace,4,"chkmcv4");
5966 in4_dev = in_dev_get(card->dev);
5967 if (in4_dev == NULL)
5968 return;
5969 read_lock(&in4_dev->mc_list_lock);
5970 qeth_add_mc(card, in4_dev);
5971 qeth_add_vlan_mc(card);
5972 read_unlock(&in4_dev->mc_list_lock);
5973 in_dev_put(in4_dev);
5974 }
5975
5976 static void
5977 qeth_layer2_add_multicast(struct qeth_card *card)
5978 {
5979 struct qeth_ipaddr *ipm;
5980 struct dev_mc_list *dm;
5981
5982 QETH_DBF_TEXT(trace,4,"L2addmc");
5983 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5984 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5985 if (!ipm)
5986 continue;
5987 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5988 ipm->is_multicast = 1;
5989 if (!qeth_add_ip(card, ipm))
5990 kfree(ipm);
5991 }
5992 }
5993
5994 #ifdef CONFIG_QETH_IPV6
5995 static void
5996 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5997 {
5998 struct qeth_ipaddr *ipm;
5999 struct ifmcaddr6 *im6;
6000 char buf[MAX_ADDR_LEN];
6001
6002 QETH_DBF_TEXT(trace,4,"addmc6");
6003 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
6004 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
6005 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
6006 if (!ipm)
6007 continue;
6008 ipm->is_multicast = 1;
6009 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
6010 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
6011 sizeof(struct in6_addr));
6012 if (!qeth_add_ip(card,ipm))
6013 kfree(ipm);
6014 }
6015 }
6016
6017 static inline void
6018 qeth_add_vlan_mc6(struct qeth_card *card)
6019 {
6020 #ifdef CONFIG_QETH_VLAN
6021 struct inet6_dev *in_dev;
6022 struct vlan_group *vg;
6023 int i;
6024
6025 QETH_DBF_TEXT(trace,4,"admc6vl");
6026 if ( ((card->options.layer2 == 0) &&
6027 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
6028 (card->vlangrp == NULL))
6029 return ;
6030
6031 vg = card->vlangrp;
6032 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
6033 struct net_device *netdev = vlan_group_get_device(vg, i);
6034 if (netdev == NULL ||
6035 !(netdev->flags & IFF_UP))
6036 continue;
6037 in_dev = in6_dev_get(netdev);
6038 if (!in_dev)
6039 continue;
6040 read_lock_bh(&in_dev->lock);
6041 qeth_add_mc6(card,in_dev);
6042 read_unlock_bh(&in_dev->lock);
6043 in6_dev_put(in_dev);
6044 }
6045 #endif /* CONFIG_QETH_VLAN */
6046 }
6047
6048 static void
6049 qeth_add_multicast_ipv6(struct qeth_card *card)
6050 {
6051 struct inet6_dev *in6_dev;
6052
6053 QETH_DBF_TEXT(trace,4,"chkmcv6");
6054 if (!qeth_is_supported(card, IPA_IPV6))
6055 return ;
6056 in6_dev = in6_dev_get(card->dev);
6057 if (in6_dev == NULL)
6058 return;
6059 read_lock_bh(&in6_dev->lock);
6060 qeth_add_mc6(card, in6_dev);
6061 qeth_add_vlan_mc6(card);
6062 read_unlock_bh(&in6_dev->lock);
6063 in6_dev_put(in6_dev);
6064 }
6065 #endif /* CONFIG_QETH_IPV6 */
6066
6067 static int
6068 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
6069 enum qeth_ipa_cmds ipacmd,
6070 int (*reply_cb) (struct qeth_card *,
6071 struct qeth_reply*,
6072 unsigned long))
6073 {
6074 struct qeth_ipa_cmd *cmd;
6075 struct qeth_cmd_buffer *iob;
6076
6077 QETH_DBF_TEXT(trace, 2, "L2sdmac");
6078 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
6079 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6080 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
6081 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
6082 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
6083 }
6084
6085 static int
6086 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
6087 struct qeth_reply *reply,
6088 unsigned long data)
6089 {
6090 struct qeth_ipa_cmd *cmd;
6091 __u8 *mac;
6092
6093 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
6094 cmd = (struct qeth_ipa_cmd *) data;
6095 mac = &cmd->data.setdelmac.mac[0];
6096 /* MAC already registered, needed in couple/uncouple case */
6097 if (cmd->hdr.return_code == 0x2005) {
6098 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
6099 "already existing on %s \n",
6100 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6101 QETH_CARD_IFNAME(card));
6102 cmd->hdr.return_code = 0;
6103 }
6104 if (cmd->hdr.return_code)
6105 PRINT_ERR("Could not set group MAC " \
6106 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6107 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6108 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
6109 return 0;
6110 }
6111
6112 static int
6113 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
6114 {
6115 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
6116 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
6117 qeth_layer2_send_setgroupmac_cb);
6118 }
6119
6120 static int
6121 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
6122 struct qeth_reply *reply,
6123 unsigned long data)
6124 {
6125 struct qeth_ipa_cmd *cmd;
6126 __u8 *mac;
6127
6128 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
6129 cmd = (struct qeth_ipa_cmd *) data;
6130 mac = &cmd->data.setdelmac.mac[0];
6131 if (cmd->hdr.return_code)
6132 PRINT_ERR("Could not delete group MAC " \
6133 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6134 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6135 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
6136 return 0;
6137 }
6138
6139 static int
6140 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
6141 {
6142 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
6143 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
6144 qeth_layer2_send_delgroupmac_cb);
6145 }
6146
6147 static int
6148 qeth_layer2_send_setmac_cb(struct qeth_card *card,
6149 struct qeth_reply *reply,
6150 unsigned long data)
6151 {
6152 struct qeth_ipa_cmd *cmd;
6153
6154 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
6155 cmd = (struct qeth_ipa_cmd *) data;
6156 if (cmd->hdr.return_code) {
6157 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
6158 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6159 cmd->hdr.return_code = -EIO;
6160 } else {
6161 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
6162 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
6163 OSA_ADDR_LEN);
6164 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
6165 "successfully registered on device %s\n",
6166 card->dev->dev_addr[0], card->dev->dev_addr[1],
6167 card->dev->dev_addr[2], card->dev->dev_addr[3],
6168 card->dev->dev_addr[4], card->dev->dev_addr[5],
6169 card->dev->name);
6170 }
6171 return 0;
6172 }
6173
6174 static int
6175 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
6176 {
6177 QETH_DBF_TEXT(trace, 2, "L2Setmac");
6178 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
6179 qeth_layer2_send_setmac_cb);
6180 }
6181
6182 static int
6183 qeth_layer2_send_delmac_cb(struct qeth_card *card,
6184 struct qeth_reply *reply,
6185 unsigned long data)
6186 {
6187 struct qeth_ipa_cmd *cmd;
6188
6189 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6190 cmd = (struct qeth_ipa_cmd *) data;
6191 if (cmd->hdr.return_code) {
6192 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6193 cmd->hdr.return_code = -EIO;
6194 return 0;
6195 }
6196 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6197
6198 return 0;
6199 }
6200 static int
6201 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6202 {
6203 QETH_DBF_TEXT(trace, 2, "L2Delmac");
6204 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6205 return 0;
6206 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6207 qeth_layer2_send_delmac_cb);
6208 }
6209
6210 static int
6211 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6212 {
6213 struct sockaddr *addr = p;
6214 struct qeth_card *card;
6215 int rc = 0;
6216
6217 QETH_DBF_TEXT(trace, 3, "setmac");
6218
6219 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6220 QETH_DBF_TEXT(trace, 3, "setmcINV");
6221 return -EOPNOTSUPP;
6222 }
6223 card = (struct qeth_card *) dev->priv;
6224
6225 if (!card->options.layer2) {
6226 PRINT_WARN("Setting MAC address on %s is not supported "
6227 "in Layer 3 mode.\n", dev->name);
6228 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6229 return -EOPNOTSUPP;
6230 }
6231 if (card->info.type == QETH_CARD_TYPE_OSN) {
6232 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6233 dev->name);
6234 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6235 return -EOPNOTSUPP;
6236 }
6237 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6238 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6239 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6240 if (!rc)
6241 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6242 return rc;
6243 }
6244
6245 static void
6246 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6247 __u8 command, enum qeth_prot_versions prot)
6248 {
6249 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6250 cmd->hdr.command = command;
6251 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6252 cmd->hdr.seqno = card->seqno.ipa;
6253 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6254 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6255 if (card->options.layer2)
6256 cmd->hdr.prim_version_no = 2;
6257 else
6258 cmd->hdr.prim_version_no = 1;
6259 cmd->hdr.param_count = 1;
6260 cmd->hdr.prot_version = prot;
6261 cmd->hdr.ipa_supported = 0;
6262 cmd->hdr.ipa_enabled = 0;
6263 }
6264
6265 static struct qeth_cmd_buffer *
6266 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6267 enum qeth_prot_versions prot)
6268 {
6269 struct qeth_cmd_buffer *iob;
6270 struct qeth_ipa_cmd *cmd;
6271
6272 iob = qeth_wait_for_buffer(&card->write);
6273 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6274 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6275
6276 return iob;
6277 }
6278
6279 static int
6280 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6281 {
6282 int rc;
6283 struct qeth_cmd_buffer *iob;
6284 struct qeth_ipa_cmd *cmd;
6285
6286 QETH_DBF_TEXT(trace,4,"setdelmc");
6287
6288 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6289 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6290 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6291 if (addr->proto == QETH_PROT_IPV6)
6292 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6293 sizeof(struct in6_addr));
6294 else
6295 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6296
6297 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6298
6299 return rc;
6300 }
6301 static void
6302 qeth_fill_netmask(u8 *netmask, unsigned int len)
6303 {
6304 int i,j;
6305 for (i=0;i<16;i++) {
6306 j=(len)-(i*8);
6307 if (j >= 8)
6308 netmask[i] = 0xff;
6309 else if (j > 0)
6310 netmask[i] = (u8)(0xFF00>>j);
6311 else
6312 netmask[i] = 0;
6313 }
6314 }
6315
6316 static int
6317 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6318 int ipacmd, unsigned int flags)
6319 {
6320 int rc;
6321 struct qeth_cmd_buffer *iob;
6322 struct qeth_ipa_cmd *cmd;
6323 __u8 netmask[16];
6324
6325 QETH_DBF_TEXT(trace,4,"setdelip");
6326 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6327
6328 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6329 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6330 if (addr->proto == QETH_PROT_IPV6) {
6331 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6332 sizeof(struct in6_addr));
6333 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6334 memcpy(cmd->data.setdelip6.mask, netmask,
6335 sizeof(struct in6_addr));
6336 cmd->data.setdelip6.flags = flags;
6337 } else {
6338 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6339 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6340 cmd->data.setdelip4.flags = flags;
6341 }
6342
6343 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6344
6345 return rc;
6346 }
6347
6348 static int
6349 qeth_layer2_register_addr_entry(struct qeth_card *card,
6350 struct qeth_ipaddr *addr)
6351 {
6352 if (!addr->is_multicast)
6353 return 0;
6354 QETH_DBF_TEXT(trace, 2, "setgmac");
6355 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6356 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6357 }
6358
6359 static int
6360 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6361 struct qeth_ipaddr *addr)
6362 {
6363 if (!addr->is_multicast)
6364 return 0;
6365 QETH_DBF_TEXT(trace, 2, "delgmac");
6366 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6367 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6368 }
6369
6370 static int
6371 qeth_layer3_register_addr_entry(struct qeth_card *card,
6372 struct qeth_ipaddr *addr)
6373 {
6374 char buf[50];
6375 int rc;
6376 int cnt = 3;
6377
6378 if (addr->proto == QETH_PROT_IPV4) {
6379 QETH_DBF_TEXT(trace, 2,"setaddr4");
6380 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6381 } else if (addr->proto == QETH_PROT_IPV6) {
6382 QETH_DBF_TEXT(trace, 2, "setaddr6");
6383 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6384 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6385 } else {
6386 QETH_DBF_TEXT(trace, 2, "setaddr?");
6387 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6388 }
6389 do {
6390 if (addr->is_multicast)
6391 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6392 else
6393 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6394 addr->set_flags);
6395 if (rc)
6396 QETH_DBF_TEXT(trace, 2, "failed");
6397 } while ((--cnt > 0) && rc);
6398 if (rc){
6399 QETH_DBF_TEXT(trace, 2, "FAILED");
6400 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6401 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6402 buf, rc, rc);
6403 }
6404 return rc;
6405 }
6406
6407 static int
6408 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6409 struct qeth_ipaddr *addr)
6410 {
6411 //char buf[50];
6412 int rc;
6413
6414 if (addr->proto == QETH_PROT_IPV4) {
6415 QETH_DBF_TEXT(trace, 2,"deladdr4");
6416 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6417 } else if (addr->proto == QETH_PROT_IPV6) {
6418 QETH_DBF_TEXT(trace, 2, "deladdr6");
6419 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6420 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6421 } else {
6422 QETH_DBF_TEXT(trace, 2, "deladdr?");
6423 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6424 }
6425 if (addr->is_multicast)
6426 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6427 else
6428 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6429 addr->del_flags);
6430 if (rc) {
6431 QETH_DBF_TEXT(trace, 2, "failed");
6432 /* TODO: re-activate this warning as soon as we have a
6433 * clean mirco code
6434 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6435 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6436 buf, rc);
6437 */
6438 }
6439 return rc;
6440 }
6441
6442 static int
6443 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6444 {
6445 if (card->options.layer2)
6446 return qeth_layer2_register_addr_entry(card, addr);
6447
6448 return qeth_layer3_register_addr_entry(card, addr);
6449 }
6450
6451 static int
6452 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6453 {
6454 if (card->options.layer2)
6455 return qeth_layer2_deregister_addr_entry(card, addr);
6456
6457 return qeth_layer3_deregister_addr_entry(card, addr);
6458 }
6459
6460 static u32
6461 qeth_ethtool_get_tx_csum(struct net_device *dev)
6462 {
6463 return (dev->features & NETIF_F_HW_CSUM) != 0;
6464 }
6465
6466 static int
6467 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6468 {
6469 if (data)
6470 dev->features |= NETIF_F_HW_CSUM;
6471 else
6472 dev->features &= ~NETIF_F_HW_CSUM;
6473
6474 return 0;
6475 }
6476
6477 static u32
6478 qeth_ethtool_get_rx_csum(struct net_device *dev)
6479 {
6480 struct qeth_card *card = (struct qeth_card *)dev->priv;
6481
6482 return (card->options.checksum_type == HW_CHECKSUMMING);
6483 }
6484
6485 static int
6486 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6487 {
6488 struct qeth_card *card = (struct qeth_card *)dev->priv;
6489
6490 if ((card->state != CARD_STATE_DOWN) &&
6491 (card->state != CARD_STATE_RECOVER))
6492 return -EPERM;
6493 if (data)
6494 card->options.checksum_type = HW_CHECKSUMMING;
6495 else
6496 card->options.checksum_type = SW_CHECKSUMMING;
6497 return 0;
6498 }
6499
6500 static u32
6501 qeth_ethtool_get_sg(struct net_device *dev)
6502 {
6503 struct qeth_card *card = (struct qeth_card *)dev->priv;
6504
6505 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6506 (dev->features & NETIF_F_SG));
6507 }
6508
6509 static int
6510 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6511 {
6512 struct qeth_card *card = (struct qeth_card *)dev->priv;
6513
6514 if (data) {
6515 if (card->options.large_send != QETH_LARGE_SEND_NO)
6516 dev->features |= NETIF_F_SG;
6517 else {
6518 dev->features &= ~NETIF_F_SG;
6519 return -EINVAL;
6520 }
6521 } else
6522 dev->features &= ~NETIF_F_SG;
6523 return 0;
6524 }
6525
6526 static u32
6527 qeth_ethtool_get_tso(struct net_device *dev)
6528 {
6529 struct qeth_card *card = (struct qeth_card *)dev->priv;
6530
6531 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6532 (dev->features & NETIF_F_TSO));
6533 }
6534
6535 static int
6536 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6537 {
6538 struct qeth_card *card = (struct qeth_card *)dev->priv;
6539
6540 if (data) {
6541 if (card->options.large_send != QETH_LARGE_SEND_NO)
6542 dev->features |= NETIF_F_TSO;
6543 else {
6544 dev->features &= ~NETIF_F_TSO;
6545 return -EINVAL;
6546 }
6547 } else
6548 dev->features &= ~NETIF_F_TSO;
6549 return 0;
6550 }
6551
6552 static struct ethtool_ops qeth_ethtool_ops = {
6553 .get_tx_csum = qeth_ethtool_get_tx_csum,
6554 .set_tx_csum = qeth_ethtool_set_tx_csum,
6555 .get_rx_csum = qeth_ethtool_get_rx_csum,
6556 .set_rx_csum = qeth_ethtool_set_rx_csum,
6557 .get_sg = qeth_ethtool_get_sg,
6558 .set_sg = qeth_ethtool_set_sg,
6559 .get_tso = qeth_ethtool_get_tso,
6560 .set_tso = qeth_ethtool_set_tso,
6561 };
6562
6563 static int
6564 qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6565 {
6566 struct qeth_card *card;
6567 struct ethhdr *eth;
6568
6569 card = qeth_get_card_from_dev(skb->dev);
6570 if (card->options.layer2)
6571 goto haveheader;
6572 #ifdef CONFIG_QETH_IPV6
6573 /* cause of the manipulated arp constructor and the ARP
6574 flag for OSAE devices we have some nasty exceptions */
6575 if (card->info.type == QETH_CARD_TYPE_OSAE) {
6576 if (!card->options.fake_ll) {
6577 if ((skb->pkt_type==PACKET_OUTGOING) &&
6578 (skb->protocol==ETH_P_IPV6))
6579 goto haveheader;
6580 else
6581 return 0;
6582 } else {
6583 if ((skb->pkt_type==PACKET_OUTGOING) &&
6584 (skb->protocol==ETH_P_IP))
6585 return 0;
6586 else
6587 goto haveheader;
6588 }
6589 }
6590 #endif
6591 if (!card->options.fake_ll)
6592 return 0;
6593 haveheader:
6594 eth = eth_hdr(skb);
6595 memcpy(haddr, eth->h_source, ETH_ALEN);
6596 return ETH_ALEN;
6597 }
6598
6599 static int
6600 qeth_netdev_init(struct net_device *dev)
6601 {
6602 struct qeth_card *card;
6603
6604 card = (struct qeth_card *) dev->priv;
6605
6606 QETH_DBF_TEXT(trace,3,"initdev");
6607
6608 dev->tx_timeout = &qeth_tx_timeout;
6609 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6610 dev->open = qeth_open;
6611 dev->stop = qeth_stop;
6612 dev->hard_start_xmit = qeth_hard_start_xmit;
6613 dev->do_ioctl = qeth_do_ioctl;
6614 dev->get_stats = qeth_get_stats;
6615 dev->change_mtu = qeth_change_mtu;
6616 dev->neigh_setup = qeth_neigh_setup;
6617 dev->set_multicast_list = qeth_set_multicast_list;
6618 #ifdef CONFIG_QETH_VLAN
6619 dev->vlan_rx_register = qeth_vlan_rx_register;
6620 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6621 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6622 #endif
6623 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6624 dev->rebuild_header = NULL;
6625 dev->hard_header = NULL;
6626 dev->header_cache_update = NULL;
6627 dev->hard_header_cache = NULL;
6628 }
6629 #ifdef CONFIG_QETH_IPV6
6630 /*IPv6 address autoconfiguration stuff*/
6631 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6632 card->dev->dev_id = card->info.unique_id & 0xffff;
6633 #endif
6634 if (card->options.fake_ll &&
6635 (qeth_get_netdev_flags(card) & IFF_NOARP))
6636 dev->hard_header = qeth_fake_header;
6637 if (dev->type == ARPHRD_IEEE802_TR)
6638 dev->hard_header_parse = NULL;
6639 else
6640 dev->hard_header_parse = qeth_hard_header_parse;
6641 dev->set_mac_address = qeth_layer2_set_mac_address;
6642 dev->flags |= qeth_get_netdev_flags(card);
6643 if ((card->options.fake_broadcast) ||
6644 (card->info.broadcast_capable))
6645 dev->flags |= IFF_BROADCAST;
6646 dev->hard_header_len =
6647 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6648 dev->addr_len = OSA_ADDR_LEN;
6649 dev->mtu = card->info.initial_mtu;
6650 if (card->info.type != QETH_CARD_TYPE_OSN)
6651 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6652 SET_MODULE_OWNER(dev);
6653 return 0;
6654 }
6655
6656 static void
6657 qeth_init_func_level(struct qeth_card *card)
6658 {
6659 if (card->ipato.enabled) {
6660 if (card->info.type == QETH_CARD_TYPE_IQD)
6661 card->info.func_level =
6662 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6663 else
6664 card->info.func_level =
6665 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6666 } else {
6667 if (card->info.type == QETH_CARD_TYPE_IQD)
6668 /*FIXME:why do we have same values for dis and ena for osae??? */
6669 card->info.func_level =
6670 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6671 else
6672 card->info.func_level =
6673 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6674 }
6675 }
6676
6677 /**
6678 * hardsetup card, initialize MPC and QDIO stuff
6679 */
6680 static int
6681 qeth_hardsetup_card(struct qeth_card *card)
6682 {
6683 int retries = 3;
6684 int rc;
6685
6686 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6687
6688 atomic_set(&card->force_alloc_skb, 0);
6689 retry:
6690 if (retries < 3){
6691 PRINT_WARN("Retrying to do IDX activates.\n");
6692 ccw_device_set_offline(CARD_DDEV(card));
6693 ccw_device_set_offline(CARD_WDEV(card));
6694 ccw_device_set_offline(CARD_RDEV(card));
6695 ccw_device_set_online(CARD_RDEV(card));
6696 ccw_device_set_online(CARD_WDEV(card));
6697 ccw_device_set_online(CARD_DDEV(card));
6698 }
6699 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6700 if (rc == -ERESTARTSYS) {
6701 QETH_DBF_TEXT(setup, 2, "break1");
6702 return rc;
6703 } else if (rc) {
6704 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6705 if (--retries < 0)
6706 goto out;
6707 else
6708 goto retry;
6709 }
6710 if ((rc = qeth_get_unitaddr(card))){
6711 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6712 return rc;
6713 }
6714 qeth_init_tokens(card);
6715 qeth_init_func_level(card);
6716 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6717 if (rc == -ERESTARTSYS) {
6718 QETH_DBF_TEXT(setup, 2, "break2");
6719 return rc;
6720 } else if (rc) {
6721 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6722 if (--retries < 0)
6723 goto out;
6724 else
6725 goto retry;
6726 }
6727 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6728 if (rc == -ERESTARTSYS) {
6729 QETH_DBF_TEXT(setup, 2, "break3");
6730 return rc;
6731 } else if (rc) {
6732 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6733 if (--retries < 0)
6734 goto out;
6735 else
6736 goto retry;
6737 }
6738 if ((rc = qeth_mpc_initialize(card))){
6739 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6740 goto out;
6741 }
6742 /*network device will be recovered*/
6743 if (card->dev) {
6744 card->dev->hard_header = card->orig_hard_header;
6745 if (card->options.fake_ll &&
6746 (qeth_get_netdev_flags(card) & IFF_NOARP))
6747 card->dev->hard_header = qeth_fake_header;
6748 return 0;
6749 }
6750 /* at first set_online allocate netdev */
6751 card->dev = qeth_get_netdevice(card->info.type,
6752 card->info.link_type);
6753 if (!card->dev){
6754 qeth_qdio_clear_card(card, card->info.type !=
6755 QETH_CARD_TYPE_IQD);
6756 rc = -ENODEV;
6757 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6758 goto out;
6759 }
6760 card->dev->priv = card;
6761 card->orig_hard_header = card->dev->hard_header;
6762 card->dev->type = qeth_get_arphdr_type(card->info.type,
6763 card->info.link_type);
6764 card->dev->init = qeth_netdev_init;
6765 return 0;
6766 out:
6767 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6768 return rc;
6769 }
6770
6771 static int
6772 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6773 unsigned long data)
6774 {
6775 struct qeth_ipa_cmd *cmd;
6776
6777 QETH_DBF_TEXT(trace,4,"defadpcb");
6778
6779 cmd = (struct qeth_ipa_cmd *) data;
6780 if (cmd->hdr.return_code == 0){
6781 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6782 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6783 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6784 #ifdef CONFIG_QETH_IPV6
6785 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6786 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6787 #endif
6788 }
6789 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6790 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6791 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6792 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6793 }
6794 return 0;
6795 }
6796
6797 static int
6798 qeth_default_setadapterparms_cb(struct qeth_card *card,
6799 struct qeth_reply *reply,
6800 unsigned long data)
6801 {
6802 struct qeth_ipa_cmd *cmd;
6803
6804 QETH_DBF_TEXT(trace,4,"defadpcb");
6805
6806 cmd = (struct qeth_ipa_cmd *) data;
6807 if (cmd->hdr.return_code == 0)
6808 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6809 return 0;
6810 }
6811
6812
6813
6814 static int
6815 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6816 unsigned long data)
6817 {
6818 struct qeth_ipa_cmd *cmd;
6819
6820 QETH_DBF_TEXT(trace,3,"quyadpcb");
6821
6822 cmd = (struct qeth_ipa_cmd *) data;
6823 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6824 card->info.link_type =
6825 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6826 card->options.adp.supported_funcs =
6827 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6828 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6829 }
6830
6831 static int
6832 qeth_query_setadapterparms(struct qeth_card *card)
6833 {
6834 int rc;
6835 struct qeth_cmd_buffer *iob;
6836
6837 QETH_DBF_TEXT(trace,3,"queryadp");
6838 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6839 sizeof(struct qeth_ipacmd_setadpparms));
6840 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6841 return rc;
6842 }
6843
6844 static int
6845 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6846 struct qeth_reply *reply,
6847 unsigned long data)
6848 {
6849 struct qeth_ipa_cmd *cmd;
6850
6851 QETH_DBF_TEXT(trace,4,"chgmaccb");
6852
6853 cmd = (struct qeth_ipa_cmd *) data;
6854 if (!card->options.layer2 ||
6855 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6856 memcpy(card->dev->dev_addr,
6857 &cmd->data.setadapterparms.data.change_addr.addr,
6858 OSA_ADDR_LEN);
6859 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6860 }
6861 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6862 return 0;
6863 }
6864
6865 static int
6866 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6867 {
6868 int rc;
6869 struct qeth_cmd_buffer *iob;
6870 struct qeth_ipa_cmd *cmd;
6871
6872 QETH_DBF_TEXT(trace,4,"chgmac");
6873
6874 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6875 sizeof(struct qeth_ipacmd_setadpparms));
6876 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6877 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6878 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6879 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6880 card->dev->dev_addr, OSA_ADDR_LEN);
6881 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6882 NULL);
6883 return rc;
6884 }
6885
6886 static int
6887 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6888 {
6889 int rc;
6890 struct qeth_cmd_buffer *iob;
6891 struct qeth_ipa_cmd *cmd;
6892
6893 QETH_DBF_TEXT(trace,4,"adpmode");
6894
6895 iob = qeth_get_adapter_cmd(card, command,
6896 sizeof(struct qeth_ipacmd_setadpparms));
6897 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6898 cmd->data.setadapterparms.data.mode = mode;
6899 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6900 NULL);
6901 return rc;
6902 }
6903
6904 static int
6905 qeth_setadapter_hstr(struct qeth_card *card)
6906 {
6907 int rc;
6908
6909 QETH_DBF_TEXT(trace,4,"adphstr");
6910
6911 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6912 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6913 card->options.broadcast_mode);
6914 if (rc)
6915 PRINT_WARN("couldn't set broadcast mode on "
6916 "device %s: x%x\n",
6917 CARD_BUS_ID(card), rc);
6918 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6919 card->options.macaddr_mode);
6920 if (rc)
6921 PRINT_WARN("couldn't set macaddr mode on "
6922 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6923 return rc;
6924 }
6925 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6926 PRINT_WARN("set adapter parameters not available "
6927 "to set broadcast mode, using ALLRINGS "
6928 "on device %s:\n", CARD_BUS_ID(card));
6929 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6930 PRINT_WARN("set adapter parameters not available "
6931 "to set macaddr mode, using NONCANONICAL "
6932 "on device %s:\n", CARD_BUS_ID(card));
6933 return 0;
6934 }
6935
6936 static int
6937 qeth_setadapter_parms(struct qeth_card *card)
6938 {
6939 int rc;
6940
6941 QETH_DBF_TEXT(setup, 2, "setadprm");
6942
6943 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6944 PRINT_WARN("set adapter parameters not supported "
6945 "on device %s.\n",
6946 CARD_BUS_ID(card));
6947 QETH_DBF_TEXT(setup, 2, " notsupp");
6948 return 0;
6949 }
6950 rc = qeth_query_setadapterparms(card);
6951 if (rc) {
6952 PRINT_WARN("couldn't set adapter parameters on device %s: "
6953 "x%x\n", CARD_BUS_ID(card), rc);
6954 return rc;
6955 }
6956 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6957 rc = qeth_setadpparms_change_macaddr(card);
6958 if (rc)
6959 PRINT_WARN("couldn't get MAC address on "
6960 "device %s: x%x\n",
6961 CARD_BUS_ID(card), rc);
6962 }
6963
6964 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6965 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6966 rc = qeth_setadapter_hstr(card);
6967
6968 return rc;
6969 }
6970
6971 static int
6972 qeth_layer2_initialize(struct qeth_card *card)
6973 {
6974 int rc = 0;
6975
6976
6977 QETH_DBF_TEXT(setup, 2, "doL2init");
6978 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6979
6980 rc = qeth_query_setadapterparms(card);
6981 if (rc) {
6982 PRINT_WARN("could not query adapter parameters on device %s: "
6983 "x%x\n", CARD_BUS_ID(card), rc);
6984 }
6985
6986 rc = qeth_setadpparms_change_macaddr(card);
6987 if (rc) {
6988 PRINT_WARN("couldn't get MAC address on "
6989 "device %s: x%x\n",
6990 CARD_BUS_ID(card), rc);
6991 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6992 return rc;
6993 }
6994 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6995
6996 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6997 if (rc)
6998 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6999 return 0;
7000 }
7001
7002
7003 static int
7004 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
7005 enum qeth_prot_versions prot)
7006 {
7007 int rc;
7008 struct qeth_cmd_buffer *iob;
7009
7010 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
7011 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7012
7013 return rc;
7014 }
7015
7016 static int
7017 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
7018 {
7019 int rc;
7020
7021 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
7022
7023 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
7024 return rc;
7025 }
7026
7027 static int
7028 qeth_send_stoplan(struct qeth_card *card)
7029 {
7030 int rc = 0;
7031
7032 /*
7033 * TODO: according to the IPA format document page 14,
7034 * TCP/IP (we!) never issue a STOPLAN
7035 * is this right ?!?
7036 */
7037 QETH_DBF_TEXT(trace, 2, "stoplan");
7038
7039 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
7040 return rc;
7041 }
7042
7043 static int
7044 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
7045 unsigned long data)
7046 {
7047 struct qeth_ipa_cmd *cmd;
7048
7049 QETH_DBF_TEXT(setup, 2, "qipasscb");
7050
7051 cmd = (struct qeth_ipa_cmd *) data;
7052 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
7053 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
7054 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
7055 /* Disable IPV6 support hard coded for Hipersockets */
7056 if(card->info.type == QETH_CARD_TYPE_IQD)
7057 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
7058 } else {
7059 #ifdef CONFIG_QETH_IPV6
7060 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
7061 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
7062 #endif
7063 }
7064 QETH_DBF_TEXT(setup, 2, "suppenbl");
7065 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
7066 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
7067 return 0;
7068 }
7069
7070 static int
7071 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
7072 {
7073 int rc;
7074 struct qeth_cmd_buffer *iob;
7075
7076 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
7077 if (card->options.layer2) {
7078 QETH_DBF_TEXT(setup, 2, "noprmly2");
7079 return -EPERM;
7080 }
7081
7082 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
7083 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
7084 return rc;
7085 }
7086
7087 static struct qeth_cmd_buffer *
7088 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
7089 __u16 cmd_code, __u16 len,
7090 enum qeth_prot_versions prot)
7091 {
7092 struct qeth_cmd_buffer *iob;
7093 struct qeth_ipa_cmd *cmd;
7094
7095 QETH_DBF_TEXT(trace,4,"getasscm");
7096 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
7097
7098 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7099 cmd->data.setassparms.hdr.assist_no = ipa_func;
7100 cmd->data.setassparms.hdr.length = 8 + len;
7101 cmd->data.setassparms.hdr.command_code = cmd_code;
7102 cmd->data.setassparms.hdr.return_code = 0;
7103 cmd->data.setassparms.hdr.seq_no = 0;
7104
7105 return iob;
7106 }
7107
7108 static int
7109 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
7110 __u16 len, long data,
7111 int (*reply_cb)
7112 (struct qeth_card *,struct qeth_reply *,unsigned long),
7113 void *reply_param)
7114 {
7115 int rc;
7116 struct qeth_ipa_cmd *cmd;
7117
7118 QETH_DBF_TEXT(trace,4,"sendassp");
7119
7120 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7121 if (len <= sizeof(__u32))
7122 cmd->data.setassparms.data.flags_32bit = (__u32) data;
7123 else /* (len > sizeof(__u32)) */
7124 memcpy(&cmd->data.setassparms.data, (void *) data, len);
7125
7126 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
7127 return rc;
7128 }
7129
7130 #ifdef CONFIG_QETH_IPV6
7131 static int
7132 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
7133 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
7134
7135 {
7136 int rc;
7137 struct qeth_cmd_buffer *iob;
7138
7139 QETH_DBF_TEXT(trace,4,"simassp6");
7140 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7141 0, QETH_PROT_IPV6);
7142 rc = qeth_send_setassparms(card, iob, 0, 0,
7143 qeth_default_setassparms_cb, NULL);
7144 return rc;
7145 }
7146 #endif
7147
7148 static int
7149 qeth_send_simple_setassparms(struct qeth_card *card,
7150 enum qeth_ipa_funcs ipa_func,
7151 __u16 cmd_code, long data)
7152 {
7153 int rc;
7154 int length = 0;
7155 struct qeth_cmd_buffer *iob;
7156
7157 QETH_DBF_TEXT(trace,4,"simassp4");
7158 if (data)
7159 length = sizeof(__u32);
7160 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7161 length, QETH_PROT_IPV4);
7162 rc = qeth_send_setassparms(card, iob, length, data,
7163 qeth_default_setassparms_cb, NULL);
7164 return rc;
7165 }
7166
7167 static int
7168 qeth_start_ipa_arp_processing(struct qeth_card *card)
7169 {
7170 int rc;
7171
7172 QETH_DBF_TEXT(trace,3,"ipaarp");
7173
7174 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
7175 PRINT_WARN("ARP processing not supported "
7176 "on %s!\n", QETH_CARD_IFNAME(card));
7177 return 0;
7178 }
7179 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
7180 IPA_CMD_ASS_START, 0);
7181 if (rc) {
7182 PRINT_WARN("Could not start ARP processing "
7183 "assist on %s: 0x%x\n",
7184 QETH_CARD_IFNAME(card), rc);
7185 }
7186 return rc;
7187 }
7188
7189 static int
7190 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
7191 {
7192 int rc;
7193
7194 QETH_DBF_TEXT(trace,3,"ipaipfrg");
7195
7196 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
7197 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
7198 QETH_CARD_IFNAME(card));
7199 return -EOPNOTSUPP;
7200 }
7201
7202 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
7203 IPA_CMD_ASS_START, 0);
7204 if (rc) {
7205 PRINT_WARN("Could not start Hardware IP fragmentation "
7206 "assist on %s: 0x%x\n",
7207 QETH_CARD_IFNAME(card), rc);
7208 } else
7209 PRINT_INFO("Hardware IP fragmentation enabled \n");
7210 return rc;
7211 }
7212
7213 static int
7214 qeth_start_ipa_source_mac(struct qeth_card *card)
7215 {
7216 int rc;
7217
7218 QETH_DBF_TEXT(trace,3,"stsrcmac");
7219
7220 if (!card->options.fake_ll)
7221 return -EOPNOTSUPP;
7222
7223 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7224 PRINT_INFO("Inbound source address not "
7225 "supported on %s\n", QETH_CARD_IFNAME(card));
7226 return -EOPNOTSUPP;
7227 }
7228
7229 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7230 IPA_CMD_ASS_START, 0);
7231 if (rc)
7232 PRINT_WARN("Could not start inbound source "
7233 "assist on %s: 0x%x\n",
7234 QETH_CARD_IFNAME(card), rc);
7235 return rc;
7236 }
7237
7238 static int
7239 qeth_start_ipa_vlan(struct qeth_card *card)
7240 {
7241 int rc = 0;
7242
7243 QETH_DBF_TEXT(trace,3,"strtvlan");
7244
7245 #ifdef CONFIG_QETH_VLAN
7246 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7247 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7248 return -EOPNOTSUPP;
7249 }
7250
7251 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7252 IPA_CMD_ASS_START,0);
7253 if (rc) {
7254 PRINT_WARN("Could not start vlan "
7255 "assist on %s: 0x%x\n",
7256 QETH_CARD_IFNAME(card), rc);
7257 } else {
7258 PRINT_INFO("VLAN enabled \n");
7259 card->dev->features |=
7260 NETIF_F_HW_VLAN_FILTER |
7261 NETIF_F_HW_VLAN_TX |
7262 NETIF_F_HW_VLAN_RX;
7263 }
7264 #endif /* QETH_VLAN */
7265 return rc;
7266 }
7267
7268 static int
7269 qeth_start_ipa_multicast(struct qeth_card *card)
7270 {
7271 int rc;
7272
7273 QETH_DBF_TEXT(trace,3,"stmcast");
7274
7275 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7276 PRINT_WARN("Multicast not supported on %s\n",
7277 QETH_CARD_IFNAME(card));
7278 return -EOPNOTSUPP;
7279 }
7280
7281 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7282 IPA_CMD_ASS_START,0);
7283 if (rc) {
7284 PRINT_WARN("Could not start multicast "
7285 "assist on %s: rc=%i\n",
7286 QETH_CARD_IFNAME(card), rc);
7287 } else {
7288 PRINT_INFO("Multicast enabled\n");
7289 card->dev->flags |= IFF_MULTICAST;
7290 }
7291 return rc;
7292 }
7293
7294 #ifdef CONFIG_QETH_IPV6
7295 static int
7296 qeth_softsetup_ipv6(struct qeth_card *card)
7297 {
7298 int rc;
7299
7300 QETH_DBF_TEXT(trace,3,"softipv6");
7301
7302 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7303 if (rc) {
7304 PRINT_ERR("IPv6 startlan failed on %s\n",
7305 QETH_CARD_IFNAME(card));
7306 return rc;
7307 }
7308 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7309 if (rc) {
7310 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7311 QETH_CARD_IFNAME(card));
7312 return rc;
7313 }
7314 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7315 IPA_CMD_ASS_START, 3);
7316 if (rc) {
7317 PRINT_WARN("IPv6 start assist (version 4) failed "
7318 "on %s: 0x%x\n",
7319 QETH_CARD_IFNAME(card), rc);
7320 return rc;
7321 }
7322 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7323 IPA_CMD_ASS_START);
7324 if (rc) {
7325 PRINT_WARN("IPV6 start assist (version 6) failed "
7326 "on %s: 0x%x\n",
7327 QETH_CARD_IFNAME(card), rc);
7328 return rc;
7329 }
7330 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7331 IPA_CMD_ASS_START);
7332 if (rc) {
7333 PRINT_WARN("Could not enable passthrough "
7334 "on %s: 0x%x\n",
7335 QETH_CARD_IFNAME(card), rc);
7336 return rc;
7337 }
7338 PRINT_INFO("IPV6 enabled \n");
7339 return 0;
7340 }
7341
7342 #endif
7343
7344 static int
7345 qeth_start_ipa_ipv6(struct qeth_card *card)
7346 {
7347 int rc = 0;
7348 #ifdef CONFIG_QETH_IPV6
7349 QETH_DBF_TEXT(trace,3,"strtipv6");
7350
7351 if (!qeth_is_supported(card, IPA_IPV6)) {
7352 PRINT_WARN("IPv6 not supported on %s\n",
7353 QETH_CARD_IFNAME(card));
7354 return 0;
7355 }
7356 rc = qeth_softsetup_ipv6(card);
7357 #endif
7358 return rc ;
7359 }
7360
7361 static int
7362 qeth_start_ipa_broadcast(struct qeth_card *card)
7363 {
7364 int rc;
7365
7366 QETH_DBF_TEXT(trace,3,"stbrdcst");
7367 card->info.broadcast_capable = 0;
7368 if (!qeth_is_supported(card, IPA_FILTERING)) {
7369 PRINT_WARN("Broadcast not supported on %s\n",
7370 QETH_CARD_IFNAME(card));
7371 rc = -EOPNOTSUPP;
7372 goto out;
7373 }
7374 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7375 IPA_CMD_ASS_START, 0);
7376 if (rc) {
7377 PRINT_WARN("Could not enable broadcasting filtering "
7378 "on %s: 0x%x\n",
7379 QETH_CARD_IFNAME(card), rc);
7380 goto out;
7381 }
7382
7383 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7384 IPA_CMD_ASS_CONFIGURE, 1);
7385 if (rc) {
7386 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7387 QETH_CARD_IFNAME(card), rc);
7388 goto out;
7389 }
7390 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7391 PRINT_INFO("Broadcast enabled \n");
7392 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7393 IPA_CMD_ASS_ENABLE, 1);
7394 if (rc) {
7395 PRINT_WARN("Could not set up broadcast echo filtering on "
7396 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7397 goto out;
7398 }
7399 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7400 out:
7401 if (card->info.broadcast_capable)
7402 card->dev->flags |= IFF_BROADCAST;
7403 else
7404 card->dev->flags &= ~IFF_BROADCAST;
7405 return rc;
7406 }
7407
7408 static int
7409 qeth_send_checksum_command(struct qeth_card *card)
7410 {
7411 int rc;
7412
7413 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7414 IPA_CMD_ASS_START, 0);
7415 if (rc) {
7416 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7417 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7418 QETH_CARD_IFNAME(card), rc);
7419 return rc;
7420 }
7421 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7422 IPA_CMD_ASS_ENABLE,
7423 card->info.csum_mask);
7424 if (rc) {
7425 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7426 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7427 QETH_CARD_IFNAME(card), rc);
7428 return rc;
7429 }
7430 return 0;
7431 }
7432
7433 static int
7434 qeth_start_ipa_checksum(struct qeth_card *card)
7435 {
7436 int rc = 0;
7437
7438 QETH_DBF_TEXT(trace,3,"strtcsum");
7439
7440 if (card->options.checksum_type == NO_CHECKSUMMING) {
7441 PRINT_WARN("Using no checksumming on %s.\n",
7442 QETH_CARD_IFNAME(card));
7443 return 0;
7444 }
7445 if (card->options.checksum_type == SW_CHECKSUMMING) {
7446 PRINT_WARN("Using SW checksumming on %s.\n",
7447 QETH_CARD_IFNAME(card));
7448 return 0;
7449 }
7450 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7451 PRINT_WARN("Inbound HW Checksumming not "
7452 "supported on %s,\ncontinuing "
7453 "using Inbound SW Checksumming\n",
7454 QETH_CARD_IFNAME(card));
7455 card->options.checksum_type = SW_CHECKSUMMING;
7456 return 0;
7457 }
7458 rc = qeth_send_checksum_command(card);
7459 if (!rc) {
7460 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7461 }
7462 return rc;
7463 }
7464
7465 static int
7466 qeth_start_ipa_tso(struct qeth_card *card)
7467 {
7468 int rc;
7469
7470 QETH_DBF_TEXT(trace,3,"sttso");
7471
7472 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7473 PRINT_WARN("Outbound TSO not supported on %s\n",
7474 QETH_CARD_IFNAME(card));
7475 rc = -EOPNOTSUPP;
7476 } else {
7477 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7478 IPA_CMD_ASS_START,0);
7479 if (rc)
7480 PRINT_WARN("Could not start outbound TSO "
7481 "assist on %s: rc=%i\n",
7482 QETH_CARD_IFNAME(card), rc);
7483 else
7484 PRINT_INFO("Outbound TSO enabled\n");
7485 }
7486 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7487 card->options.large_send = QETH_LARGE_SEND_NO;
7488 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7489 NETIF_F_HW_CSUM);
7490 }
7491 return rc;
7492 }
7493
7494 static int
7495 qeth_start_ipassists(struct qeth_card *card)
7496 {
7497 QETH_DBF_TEXT(trace,3,"strtipas");
7498 qeth_start_ipa_arp_processing(card); /* go on*/
7499 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7500 qeth_start_ipa_source_mac(card); /* go on*/
7501 qeth_start_ipa_vlan(card); /* go on*/
7502 qeth_start_ipa_multicast(card); /* go on*/
7503 qeth_start_ipa_ipv6(card); /* go on*/
7504 qeth_start_ipa_broadcast(card); /* go on*/
7505 qeth_start_ipa_checksum(card); /* go on*/
7506 qeth_start_ipa_tso(card); /* go on*/
7507 return 0;
7508 }
7509
7510 static int
7511 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7512 enum qeth_prot_versions prot)
7513 {
7514 int rc;
7515 struct qeth_ipa_cmd *cmd;
7516 struct qeth_cmd_buffer *iob;
7517
7518 QETH_DBF_TEXT(trace,4,"setroutg");
7519 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7520 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7521 cmd->data.setrtg.type = (type);
7522 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7523
7524 return rc;
7525
7526 }
7527
7528 static void
7529 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7530 enum qeth_prot_versions prot)
7531 {
7532 if (card->info.type == QETH_CARD_TYPE_IQD) {
7533 switch (*type) {
7534 case NO_ROUTER:
7535 case PRIMARY_CONNECTOR:
7536 case SECONDARY_CONNECTOR:
7537 case MULTICAST_ROUTER:
7538 return;
7539 default:
7540 goto out_inval;
7541 }
7542 } else {
7543 switch (*type) {
7544 case NO_ROUTER:
7545 case PRIMARY_ROUTER:
7546 case SECONDARY_ROUTER:
7547 return;
7548 case MULTICAST_ROUTER:
7549 if (qeth_is_ipafunc_supported(card, prot,
7550 IPA_OSA_MC_ROUTER))
7551 return;
7552 default:
7553 goto out_inval;
7554 }
7555 }
7556 out_inval:
7557 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7558 "Router status set to 'no router'.\n",
7559 ((*type == PRIMARY_ROUTER)? "primary router" :
7560 (*type == SECONDARY_ROUTER)? "secondary router" :
7561 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7562 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7563 (*type == MULTICAST_ROUTER)? "multicast router" :
7564 "unknown"),
7565 card->dev->name);
7566 *type = NO_ROUTER;
7567 }
7568
7569 int
7570 qeth_setrouting_v4(struct qeth_card *card)
7571 {
7572 int rc;
7573
7574 QETH_DBF_TEXT(trace,3,"setrtg4");
7575
7576 qeth_correct_routing_type(card, &card->options.route4.type,
7577 QETH_PROT_IPV4);
7578
7579 rc = qeth_send_setrouting(card, card->options.route4.type,
7580 QETH_PROT_IPV4);
7581 if (rc) {
7582 card->options.route4.type = NO_ROUTER;
7583 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7584 "Type set to 'no router'.\n",
7585 rc, QETH_CARD_IFNAME(card));
7586 }
7587 return rc;
7588 }
7589
7590 int
7591 qeth_setrouting_v6(struct qeth_card *card)
7592 {
7593 int rc = 0;
7594
7595 QETH_DBF_TEXT(trace,3,"setrtg6");
7596 #ifdef CONFIG_QETH_IPV6
7597
7598 if (!qeth_is_supported(card, IPA_IPV6))
7599 return 0;
7600 qeth_correct_routing_type(card, &card->options.route6.type,
7601 QETH_PROT_IPV6);
7602
7603 rc = qeth_send_setrouting(card, card->options.route6.type,
7604 QETH_PROT_IPV6);
7605 if (rc) {
7606 card->options.route6.type = NO_ROUTER;
7607 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7608 "Type set to 'no router'.\n",
7609 rc, QETH_CARD_IFNAME(card));
7610 }
7611 #endif
7612 return rc;
7613 }
7614
7615 int
7616 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7617 {
7618 int rc = 0;
7619
7620 if (card->dev == NULL) {
7621 card->options.large_send = type;
7622 return 0;
7623 }
7624 if (card->state == CARD_STATE_UP)
7625 netif_tx_disable(card->dev);
7626 card->options.large_send = type;
7627 switch (card->options.large_send) {
7628 case QETH_LARGE_SEND_EDDP:
7629 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
7630 NETIF_F_HW_CSUM;
7631 break;
7632 case QETH_LARGE_SEND_TSO:
7633 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7634 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
7635 NETIF_F_HW_CSUM;
7636 } else {
7637 PRINT_WARN("TSO not supported on %s. "
7638 "large_send set to 'no'.\n",
7639 card->dev->name);
7640 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7641 NETIF_F_HW_CSUM);
7642 card->options.large_send = QETH_LARGE_SEND_NO;
7643 rc = -EOPNOTSUPP;
7644 }
7645 break;
7646 default: /* includes QETH_LARGE_SEND_NO */
7647 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7648 NETIF_F_HW_CSUM);
7649 break;
7650 }
7651 if (card->state == CARD_STATE_UP)
7652 netif_wake_queue(card->dev);
7653 return rc;
7654 }
7655
7656 /*
7657 * softsetup card: init IPA stuff
7658 */
7659 static int
7660 qeth_softsetup_card(struct qeth_card *card)
7661 {
7662 int rc;
7663
7664 QETH_DBF_TEXT(setup, 2, "softsetp");
7665
7666 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7667 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7668 if (rc == 0xe080){
7669 PRINT_WARN("LAN on card %s if offline! "
7670 "Waiting for STARTLAN from card.\n",
7671 CARD_BUS_ID(card));
7672 card->lan_online = 0;
7673 }
7674 return rc;
7675 } else
7676 card->lan_online = 1;
7677 if (card->info.type==QETH_CARD_TYPE_OSN)
7678 goto out;
7679 qeth_set_large_send(card, card->options.large_send);
7680 if (card->options.layer2) {
7681 card->dev->features |=
7682 NETIF_F_HW_VLAN_FILTER |
7683 NETIF_F_HW_VLAN_TX |
7684 NETIF_F_HW_VLAN_RX;
7685 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7686 card->info.broadcast_capable=1;
7687 if ((rc = qeth_layer2_initialize(card))) {
7688 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7689 return rc;
7690 }
7691 #ifdef CONFIG_QETH_VLAN
7692 qeth_layer2_process_vlans(card, 0);
7693 #endif
7694 goto out;
7695 }
7696 if ((rc = qeth_setadapter_parms(card)))
7697 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7698 if ((rc = qeth_start_ipassists(card)))
7699 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7700 if ((rc = qeth_setrouting_v4(card)))
7701 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7702 if ((rc = qeth_setrouting_v6(card)))
7703 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7704 out:
7705 netif_tx_disable(card->dev);
7706 return 0;
7707 }
7708
7709 #ifdef CONFIG_QETH_IPV6
7710 static int
7711 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7712 unsigned long data)
7713 {
7714 struct qeth_ipa_cmd *cmd;
7715
7716 cmd = (struct qeth_ipa_cmd *) data;
7717 if (cmd->hdr.return_code == 0)
7718 card->info.unique_id = *((__u16 *)
7719 &cmd->data.create_destroy_addr.unique_id[6]);
7720 else {
7721 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7722 UNIQUE_ID_NOT_BY_CARD;
7723 PRINT_WARN("couldn't get a unique id from the card on device "
7724 "%s (result=x%x), using default id. ipv6 "
7725 "autoconfig on other lpars may lead to duplicate "
7726 "ip addresses. please use manually "
7727 "configured ones.\n",
7728 CARD_BUS_ID(card), cmd->hdr.return_code);
7729 }
7730 return 0;
7731 }
7732 #endif
7733
7734 static int
7735 qeth_put_unique_id(struct qeth_card *card)
7736 {
7737
7738 int rc = 0;
7739 #ifdef CONFIG_QETH_IPV6
7740 struct qeth_cmd_buffer *iob;
7741 struct qeth_ipa_cmd *cmd;
7742
7743 QETH_DBF_TEXT(trace,2,"puniqeid");
7744
7745 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7746 UNIQUE_ID_NOT_BY_CARD)
7747 return -1;
7748 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7749 QETH_PROT_IPV6);
7750 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7751 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7752 card->info.unique_id;
7753 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7754 card->dev->dev_addr, OSA_ADDR_LEN);
7755 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7756 #else
7757 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7758 UNIQUE_ID_NOT_BY_CARD;
7759 #endif
7760 return rc;
7761 }
7762
7763 /**
7764 * Clear IP List
7765 */
7766 static void
7767 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7768 {
7769 struct qeth_ipaddr *addr, *tmp;
7770 unsigned long flags;
7771
7772 QETH_DBF_TEXT(trace,4,"clearip");
7773 spin_lock_irqsave(&card->ip_lock, flags);
7774 /* clear todo list */
7775 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7776 list_del(&addr->entry);
7777 kfree(addr);
7778 }
7779
7780 while (!list_empty(&card->ip_list)) {
7781 addr = list_entry(card->ip_list.next,
7782 struct qeth_ipaddr, entry);
7783 list_del_init(&addr->entry);
7784 if (clean) {
7785 spin_unlock_irqrestore(&card->ip_lock, flags);
7786 qeth_deregister_addr_entry(card, addr);
7787 spin_lock_irqsave(&card->ip_lock, flags);
7788 }
7789 if (!recover || addr->is_multicast) {
7790 kfree(addr);
7791 continue;
7792 }
7793 list_add_tail(&addr->entry, card->ip_tbd_list);
7794 }
7795 spin_unlock_irqrestore(&card->ip_lock, flags);
7796 }
7797
7798 static void
7799 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7800 int clear_start_mask)
7801 {
7802 unsigned long flags;
7803
7804 spin_lock_irqsave(&card->thread_mask_lock, flags);
7805 card->thread_allowed_mask = threads;
7806 if (clear_start_mask)
7807 card->thread_start_mask &= threads;
7808 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7809 wake_up(&card->wait_q);
7810 }
7811
7812 static int
7813 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7814 {
7815 unsigned long flags;
7816 int rc = 0;
7817
7818 spin_lock_irqsave(&card->thread_mask_lock, flags);
7819 rc = (card->thread_running_mask & threads);
7820 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7821 return rc;
7822 }
7823
7824 static int
7825 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7826 {
7827 return wait_event_interruptible(card->wait_q,
7828 qeth_threads_running(card, threads) == 0);
7829 }
7830
7831 static int
7832 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7833 {
7834 int rc = 0;
7835
7836 QETH_DBF_TEXT(setup ,2,"stopcard");
7837 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7838
7839 qeth_set_allowed_threads(card, 0, 1);
7840 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7841 return -ERESTARTSYS;
7842 if (card->read.state == CH_STATE_UP &&
7843 card->write.state == CH_STATE_UP &&
7844 (card->state == CARD_STATE_UP)) {
7845 if (recovery_mode &&
7846 card->info.type != QETH_CARD_TYPE_OSN) {
7847 qeth_stop(card->dev);
7848 } else {
7849 rtnl_lock();
7850 dev_close(card->dev);
7851 rtnl_unlock();
7852 }
7853 if (!card->use_hard_stop) {
7854 __u8 *mac = &card->dev->dev_addr[0];
7855 rc = qeth_layer2_send_delmac(card, mac);
7856 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7857 if ((rc = qeth_send_stoplan(card)))
7858 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7859 }
7860 card->state = CARD_STATE_SOFTSETUP;
7861 }
7862 if (card->state == CARD_STATE_SOFTSETUP) {
7863 #ifdef CONFIG_QETH_VLAN
7864 if (card->options.layer2)
7865 qeth_layer2_process_vlans(card, 1);
7866 #endif
7867 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7868 qeth_clear_ipacmd_list(card);
7869 card->state = CARD_STATE_HARDSETUP;
7870 }
7871 if (card->state == CARD_STATE_HARDSETUP) {
7872 if ((!card->use_hard_stop) &&
7873 (!card->options.layer2))
7874 if ((rc = qeth_put_unique_id(card)))
7875 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7876 qeth_qdio_clear_card(card, 0);
7877 qeth_clear_qdio_buffers(card);
7878 qeth_clear_working_pool_list(card);
7879 card->state = CARD_STATE_DOWN;
7880 }
7881 if (card->state == CARD_STATE_DOWN) {
7882 qeth_clear_cmd_buffers(&card->read);
7883 qeth_clear_cmd_buffers(&card->write);
7884 }
7885 card->use_hard_stop = 0;
7886 return rc;
7887 }
7888
7889
7890 static int
7891 qeth_get_unique_id(struct qeth_card *card)
7892 {
7893 int rc = 0;
7894 #ifdef CONFIG_QETH_IPV6
7895 struct qeth_cmd_buffer *iob;
7896 struct qeth_ipa_cmd *cmd;
7897
7898 QETH_DBF_TEXT(setup, 2, "guniqeid");
7899
7900 if (!qeth_is_supported(card,IPA_IPV6)) {
7901 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7902 UNIQUE_ID_NOT_BY_CARD;
7903 return 0;
7904 }
7905
7906 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7907 QETH_PROT_IPV6);
7908 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7909 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7910 card->info.unique_id;
7911
7912 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7913 #else
7914 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7915 UNIQUE_ID_NOT_BY_CARD;
7916 #endif
7917 return rc;
7918 }
7919 static void
7920 qeth_print_status_with_portname(struct qeth_card *card)
7921 {
7922 char dbf_text[15];
7923 int i;
7924
7925 sprintf(dbf_text, "%s", card->info.portname + 1);
7926 for (i = 0; i < 8; i++)
7927 dbf_text[i] =
7928 (char) _ebcasc[(__u8) dbf_text[i]];
7929 dbf_text[8] = 0;
7930 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7931 "with link type %s (portname: %s)\n",
7932 CARD_RDEV_ID(card),
7933 CARD_WDEV_ID(card),
7934 CARD_DDEV_ID(card),
7935 qeth_get_cardname(card),
7936 (card->info.mcl_level[0]) ? " (level: " : "",
7937 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7938 (card->info.mcl_level[0]) ? ")" : "",
7939 qeth_get_cardname_short(card),
7940 dbf_text);
7941
7942 }
7943
7944 static void
7945 qeth_print_status_no_portname(struct qeth_card *card)
7946 {
7947 if (card->info.portname[0])
7948 printk("qeth: Device %s/%s/%s is a%s "
7949 "card%s%s%s\nwith link type %s "
7950 "(no portname needed by interface).\n",
7951 CARD_RDEV_ID(card),
7952 CARD_WDEV_ID(card),
7953 CARD_DDEV_ID(card),
7954 qeth_get_cardname(card),
7955 (card->info.mcl_level[0]) ? " (level: " : "",
7956 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7957 (card->info.mcl_level[0]) ? ")" : "",
7958 qeth_get_cardname_short(card));
7959 else
7960 printk("qeth: Device %s/%s/%s is a%s "
7961 "card%s%s%s\nwith link type %s.\n",
7962 CARD_RDEV_ID(card),
7963 CARD_WDEV_ID(card),
7964 CARD_DDEV_ID(card),
7965 qeth_get_cardname(card),
7966 (card->info.mcl_level[0]) ? " (level: " : "",
7967 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7968 (card->info.mcl_level[0]) ? ")" : "",
7969 qeth_get_cardname_short(card));
7970 }
7971
7972 static void
7973 qeth_print_status_message(struct qeth_card *card)
7974 {
7975 switch (card->info.type) {
7976 case QETH_CARD_TYPE_OSAE:
7977 /* VM will use a non-zero first character
7978 * to indicate a HiperSockets like reporting
7979 * of the level OSA sets the first character to zero
7980 * */
7981 if (!card->info.mcl_level[0]) {
7982 sprintf(card->info.mcl_level,"%02x%02x",
7983 card->info.mcl_level[2],
7984 card->info.mcl_level[3]);
7985
7986 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7987 break;
7988 }
7989 /* fallthrough */
7990 case QETH_CARD_TYPE_IQD:
7991 if (card->info.guestlan) {
7992 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7993 card->info.mcl_level[0]];
7994 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7995 card->info.mcl_level[1]];
7996 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7997 card->info.mcl_level[2]];
7998 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7999 card->info.mcl_level[3]];
8000 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
8001 }
8002 break;
8003 default:
8004 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
8005 }
8006 if (card->info.portname_required)
8007 qeth_print_status_with_portname(card);
8008 else
8009 qeth_print_status_no_portname(card);
8010 }
8011
8012 static int
8013 qeth_register_netdev(struct qeth_card *card)
8014 {
8015 QETH_DBF_TEXT(setup, 3, "regnetd");
8016 if (card->dev->reg_state != NETREG_UNINITIALIZED)
8017 return 0;
8018 /* sysfs magic */
8019 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
8020 return register_netdev(card->dev);
8021 }
8022
8023 static void
8024 qeth_start_again(struct qeth_card *card, int recovery_mode)
8025 {
8026 QETH_DBF_TEXT(setup ,2, "startag");
8027
8028 if (recovery_mode &&
8029 card->info.type != QETH_CARD_TYPE_OSN) {
8030 qeth_open(card->dev);
8031 } else {
8032 rtnl_lock();
8033 dev_open(card->dev);
8034 rtnl_unlock();
8035 }
8036 /* this also sets saved unicast addresses */
8037 qeth_set_multicast_list(card->dev);
8038 }
8039
8040
8041 /* Layer 2 specific stuff */
8042 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
8043 if (card->options.option == value) { \
8044 PRINT_ERR("%s not supported with layer 2 " \
8045 "functionality, ignoring option on read" \
8046 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
8047 card->options.option = reset_value; \
8048 }
8049 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
8050 if (card->options.option != value) { \
8051 PRINT_ERR("%s not supported with layer 2 " \
8052 "functionality, ignoring option on read" \
8053 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
8054 card->options.option = reset_value; \
8055 }
8056
8057
8058 static void qeth_make_parameters_consistent(struct qeth_card *card)
8059 {
8060
8061 if (card->options.layer2 == 0)
8062 return;
8063 if (card->info.type == QETH_CARD_TYPE_OSN)
8064 return;
8065 if (card->info.type == QETH_CARD_TYPE_IQD) {
8066 PRINT_ERR("Device %s does not support layer 2 functionality." \
8067 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
8068 card->options.layer2 = 0;
8069 return;
8070 }
8071 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
8072 "Routing options are");
8073 #ifdef CONFIG_QETH_IPV6
8074 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
8075 "Routing options are");
8076 #endif
8077 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
8078 QETH_CHECKSUM_DEFAULT,
8079 "Checksumming options are");
8080 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
8081 QETH_TR_BROADCAST_ALLRINGS,
8082 "Broadcast mode options are");
8083 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
8084 QETH_TR_MACADDR_NONCANONICAL,
8085 "Canonical MAC addr options are");
8086 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
8087 "Broadcast faking options are");
8088 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
8089 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
8090 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
8091 }
8092
8093
8094 static int
8095 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
8096 {
8097 struct qeth_card *card = gdev->dev.driver_data;
8098 int rc = 0;
8099 enum qeth_card_states recover_flag;
8100
8101 BUG_ON(!card);
8102 QETH_DBF_TEXT(setup ,2, "setonlin");
8103 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
8104
8105 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
8106 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
8107 PRINT_WARN("set_online of card %s interrupted by user!\n",
8108 CARD_BUS_ID(card));
8109 return -ERESTARTSYS;
8110 }
8111
8112 recover_flag = card->state;
8113 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
8114 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
8115 (rc = ccw_device_set_online(CARD_DDEV(card)))){
8116 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
8117 return -EIO;
8118 }
8119
8120 qeth_make_parameters_consistent(card);
8121
8122 if ((rc = qeth_hardsetup_card(card))){
8123 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
8124 goto out_remove;
8125 }
8126 card->state = CARD_STATE_HARDSETUP;
8127
8128 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
8129 rc = qeth_get_unique_id(card);
8130
8131 if (rc && card->options.layer2 == 0) {
8132 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
8133 goto out_remove;
8134 }
8135 qeth_print_status_message(card);
8136 if ((rc = qeth_register_netdev(card))){
8137 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
8138 goto out_remove;
8139 }
8140 if ((rc = qeth_softsetup_card(card))){
8141 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
8142 goto out_remove;
8143 }
8144
8145 if ((rc = qeth_init_qdio_queues(card))){
8146 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
8147 goto out_remove;
8148 }
8149 card->state = CARD_STATE_SOFTSETUP;
8150 netif_carrier_on(card->dev);
8151
8152 qeth_set_allowed_threads(card, 0xffffffff, 0);
8153 if (recover_flag == CARD_STATE_RECOVER)
8154 qeth_start_again(card, recovery_mode);
8155 qeth_notify_processes();
8156 return 0;
8157 out_remove:
8158 card->use_hard_stop = 1;
8159 qeth_stop_card(card, 0);
8160 ccw_device_set_offline(CARD_DDEV(card));
8161 ccw_device_set_offline(CARD_WDEV(card));
8162 ccw_device_set_offline(CARD_RDEV(card));
8163 if (recover_flag == CARD_STATE_RECOVER)
8164 card->state = CARD_STATE_RECOVER;
8165 else
8166 card->state = CARD_STATE_DOWN;
8167 return -ENODEV;
8168 }
8169
8170 static int
8171 qeth_set_online(struct ccwgroup_device *gdev)
8172 {
8173 return __qeth_set_online(gdev, 0);
8174 }
8175
8176 static struct ccw_device_id qeth_ids[] = {
8177 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
8178 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
8179 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
8180 {},
8181 };
8182 MODULE_DEVICE_TABLE(ccw, qeth_ids);
8183
8184 struct device *qeth_root_dev = NULL;
8185
8186 struct ccwgroup_driver qeth_ccwgroup_driver = {
8187 .owner = THIS_MODULE,
8188 .name = "qeth",
8189 .driver_id = 0xD8C5E3C8,
8190 .probe = qeth_probe_device,
8191 .remove = qeth_remove_device,
8192 .set_online = qeth_set_online,
8193 .set_offline = qeth_set_offline,
8194 };
8195
8196 struct ccw_driver qeth_ccw_driver = {
8197 .name = "qeth",
8198 .ids = qeth_ids,
8199 .probe = ccwgroup_probe_ccwdev,
8200 .remove = ccwgroup_remove_ccwdev,
8201 };
8202
8203
8204 static void
8205 qeth_unregister_dbf_views(void)
8206 {
8207 if (qeth_dbf_setup)
8208 debug_unregister(qeth_dbf_setup);
8209 if (qeth_dbf_qerr)
8210 debug_unregister(qeth_dbf_qerr);
8211 if (qeth_dbf_sense)
8212 debug_unregister(qeth_dbf_sense);
8213 if (qeth_dbf_misc)
8214 debug_unregister(qeth_dbf_misc);
8215 if (qeth_dbf_data)
8216 debug_unregister(qeth_dbf_data);
8217 if (qeth_dbf_control)
8218 debug_unregister(qeth_dbf_control);
8219 if (qeth_dbf_trace)
8220 debug_unregister(qeth_dbf_trace);
8221 }
8222 static int
8223 qeth_register_dbf_views(void)
8224 {
8225 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8226 QETH_DBF_SETUP_PAGES,
8227 QETH_DBF_SETUP_NR_AREAS,
8228 QETH_DBF_SETUP_LEN);
8229 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8230 QETH_DBF_MISC_PAGES,
8231 QETH_DBF_MISC_NR_AREAS,
8232 QETH_DBF_MISC_LEN);
8233 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8234 QETH_DBF_DATA_PAGES,
8235 QETH_DBF_DATA_NR_AREAS,
8236 QETH_DBF_DATA_LEN);
8237 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8238 QETH_DBF_CONTROL_PAGES,
8239 QETH_DBF_CONTROL_NR_AREAS,
8240 QETH_DBF_CONTROL_LEN);
8241 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8242 QETH_DBF_SENSE_PAGES,
8243 QETH_DBF_SENSE_NR_AREAS,
8244 QETH_DBF_SENSE_LEN);
8245 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8246 QETH_DBF_QERR_PAGES,
8247 QETH_DBF_QERR_NR_AREAS,
8248 QETH_DBF_QERR_LEN);
8249 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8250 QETH_DBF_TRACE_PAGES,
8251 QETH_DBF_TRACE_NR_AREAS,
8252 QETH_DBF_TRACE_LEN);
8253
8254 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
8255 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
8256 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
8257 (qeth_dbf_trace == NULL)) {
8258 qeth_unregister_dbf_views();
8259 return -ENOMEM;
8260 }
8261 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8262 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8263
8264 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8265 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8266
8267 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8268 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8269
8270 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8271 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8272
8273 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8274 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8275
8276 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8277 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8278
8279 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8280 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8281
8282 return 0;
8283 }
8284
8285 #ifdef CONFIG_QETH_IPV6
8286 extern struct neigh_table arp_tbl;
8287 static struct neigh_ops *arp_direct_ops;
8288 static int (*qeth_old_arp_constructor) (struct neighbour *);
8289
8290 static struct neigh_ops arp_direct_ops_template = {
8291 .family = AF_INET,
8292 .solicit = NULL,
8293 .error_report = NULL,
8294 .output = dev_queue_xmit,
8295 .connected_output = dev_queue_xmit,
8296 .hh_output = dev_queue_xmit,
8297 .queue_xmit = dev_queue_xmit
8298 };
8299
8300 static int
8301 qeth_arp_constructor(struct neighbour *neigh)
8302 {
8303 struct net_device *dev = neigh->dev;
8304 struct in_device *in_dev;
8305 struct neigh_parms *parms;
8306 struct qeth_card *card;
8307
8308 card = qeth_get_card_from_dev(dev);
8309 if (card == NULL)
8310 goto out;
8311 if((card->options.layer2) ||
8312 (card->dev->hard_header == qeth_fake_header))
8313 goto out;
8314
8315 rcu_read_lock();
8316 in_dev = __in_dev_get_rcu(dev);
8317 if (in_dev == NULL) {
8318 rcu_read_unlock();
8319 return -EINVAL;
8320 }
8321
8322 parms = in_dev->arp_parms;
8323 __neigh_parms_put(neigh->parms);
8324 neigh->parms = neigh_parms_clone(parms);
8325 rcu_read_unlock();
8326
8327 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8328 neigh->nud_state = NUD_NOARP;
8329 neigh->ops = arp_direct_ops;
8330 neigh->output = neigh->ops->queue_xmit;
8331 return 0;
8332 out:
8333 return qeth_old_arp_constructor(neigh);
8334 }
8335 #endif /*CONFIG_QETH_IPV6*/
8336
8337 /*
8338 * IP address takeover related functions
8339 */
8340 static void
8341 qeth_clear_ipato_list(struct qeth_card *card)
8342 {
8343 struct qeth_ipato_entry *ipatoe, *tmp;
8344 unsigned long flags;
8345
8346 spin_lock_irqsave(&card->ip_lock, flags);
8347 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8348 list_del(&ipatoe->entry);
8349 kfree(ipatoe);
8350 }
8351 spin_unlock_irqrestore(&card->ip_lock, flags);
8352 }
8353
8354 int
8355 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8356 {
8357 struct qeth_ipato_entry *ipatoe;
8358 unsigned long flags;
8359 int rc = 0;
8360
8361 QETH_DBF_TEXT(trace, 2, "addipato");
8362 spin_lock_irqsave(&card->ip_lock, flags);
8363 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8364 if (ipatoe->proto != new->proto)
8365 continue;
8366 if (!memcmp(ipatoe->addr, new->addr,
8367 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8368 (ipatoe->mask_bits == new->mask_bits)){
8369 PRINT_WARN("ipato entry already exists!\n");
8370 rc = -EEXIST;
8371 break;
8372 }
8373 }
8374 if (!rc) {
8375 list_add_tail(&new->entry, &card->ipato.entries);
8376 }
8377 spin_unlock_irqrestore(&card->ip_lock, flags);
8378 return rc;
8379 }
8380
8381 void
8382 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8383 u8 *addr, int mask_bits)
8384 {
8385 struct qeth_ipato_entry *ipatoe, *tmp;
8386 unsigned long flags;
8387
8388 QETH_DBF_TEXT(trace, 2, "delipato");
8389 spin_lock_irqsave(&card->ip_lock, flags);
8390 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8391 if (ipatoe->proto != proto)
8392 continue;
8393 if (!memcmp(ipatoe->addr, addr,
8394 (proto == QETH_PROT_IPV4)? 4:16) &&
8395 (ipatoe->mask_bits == mask_bits)){
8396 list_del(&ipatoe->entry);
8397 kfree(ipatoe);
8398 }
8399 }
8400 spin_unlock_irqrestore(&card->ip_lock, flags);
8401 }
8402
8403 static void
8404 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8405 {
8406 int i, j;
8407 u8 octet;
8408
8409 for (i = 0; i < len; ++i){
8410 octet = addr[i];
8411 for (j = 7; j >= 0; --j){
8412 bits[i*8 + j] = octet & 1;
8413 octet >>= 1;
8414 }
8415 }
8416 }
8417
8418 static int
8419 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8420 {
8421 struct qeth_ipato_entry *ipatoe;
8422 u8 addr_bits[128] = {0, };
8423 u8 ipatoe_bits[128] = {0, };
8424 int rc = 0;
8425
8426 if (!card->ipato.enabled)
8427 return 0;
8428
8429 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8430 (addr->proto == QETH_PROT_IPV4)? 4:16);
8431 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8432 if (addr->proto != ipatoe->proto)
8433 continue;
8434 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8435 (ipatoe->proto==QETH_PROT_IPV4) ?
8436 4:16);
8437 if (addr->proto == QETH_PROT_IPV4)
8438 rc = !memcmp(addr_bits, ipatoe_bits,
8439 min(32, ipatoe->mask_bits));
8440 else
8441 rc = !memcmp(addr_bits, ipatoe_bits,
8442 min(128, ipatoe->mask_bits));
8443 if (rc)
8444 break;
8445 }
8446 /* invert? */
8447 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8448 rc = !rc;
8449 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8450 rc = !rc;
8451
8452 return rc;
8453 }
8454
8455 /*
8456 * VIPA related functions
8457 */
8458 int
8459 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8460 const u8 *addr)
8461 {
8462 struct qeth_ipaddr *ipaddr;
8463 unsigned long flags;
8464 int rc = 0;
8465
8466 ipaddr = qeth_get_addr_buffer(proto);
8467 if (ipaddr){
8468 if (proto == QETH_PROT_IPV4){
8469 QETH_DBF_TEXT(trace, 2, "addvipa4");
8470 memcpy(&ipaddr->u.a4.addr, addr, 4);
8471 ipaddr->u.a4.mask = 0;
8472 #ifdef CONFIG_QETH_IPV6
8473 } else if (proto == QETH_PROT_IPV6){
8474 QETH_DBF_TEXT(trace, 2, "addvipa6");
8475 memcpy(&ipaddr->u.a6.addr, addr, 16);
8476 ipaddr->u.a6.pfxlen = 0;
8477 #endif
8478 }
8479 ipaddr->type = QETH_IP_TYPE_VIPA;
8480 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8481 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8482 } else
8483 return -ENOMEM;
8484 spin_lock_irqsave(&card->ip_lock, flags);
8485 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8486 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8487 rc = -EEXIST;
8488 spin_unlock_irqrestore(&card->ip_lock, flags);
8489 if (rc){
8490 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8491 return rc;
8492 }
8493 if (!qeth_add_ip(card, ipaddr))
8494 kfree(ipaddr);
8495 qeth_set_ip_addr_list(card);
8496 return rc;
8497 }
8498
8499 void
8500 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8501 const u8 *addr)
8502 {
8503 struct qeth_ipaddr *ipaddr;
8504
8505 ipaddr = qeth_get_addr_buffer(proto);
8506 if (ipaddr){
8507 if (proto == QETH_PROT_IPV4){
8508 QETH_DBF_TEXT(trace, 2, "delvipa4");
8509 memcpy(&ipaddr->u.a4.addr, addr, 4);
8510 ipaddr->u.a4.mask = 0;
8511 #ifdef CONFIG_QETH_IPV6
8512 } else if (proto == QETH_PROT_IPV6){
8513 QETH_DBF_TEXT(trace, 2, "delvipa6");
8514 memcpy(&ipaddr->u.a6.addr, addr, 16);
8515 ipaddr->u.a6.pfxlen = 0;
8516 #endif
8517 }
8518 ipaddr->type = QETH_IP_TYPE_VIPA;
8519 } else
8520 return;
8521 if (!qeth_delete_ip(card, ipaddr))
8522 kfree(ipaddr);
8523 qeth_set_ip_addr_list(card);
8524 }
8525
8526 /*
8527 * proxy ARP related functions
8528 */
8529 int
8530 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8531 const u8 *addr)
8532 {
8533 struct qeth_ipaddr *ipaddr;
8534 unsigned long flags;
8535 int rc = 0;
8536
8537 ipaddr = qeth_get_addr_buffer(proto);
8538 if (ipaddr){
8539 if (proto == QETH_PROT_IPV4){
8540 QETH_DBF_TEXT(trace, 2, "addrxip4");
8541 memcpy(&ipaddr->u.a4.addr, addr, 4);
8542 ipaddr->u.a4.mask = 0;
8543 #ifdef CONFIG_QETH_IPV6
8544 } else if (proto == QETH_PROT_IPV6){
8545 QETH_DBF_TEXT(trace, 2, "addrxip6");
8546 memcpy(&ipaddr->u.a6.addr, addr, 16);
8547 ipaddr->u.a6.pfxlen = 0;
8548 #endif
8549 }
8550 ipaddr->type = QETH_IP_TYPE_RXIP;
8551 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8552 ipaddr->del_flags = 0;
8553 } else
8554 return -ENOMEM;
8555 spin_lock_irqsave(&card->ip_lock, flags);
8556 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8557 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8558 rc = -EEXIST;
8559 spin_unlock_irqrestore(&card->ip_lock, flags);
8560 if (rc){
8561 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8562 return rc;
8563 }
8564 if (!qeth_add_ip(card, ipaddr))
8565 kfree(ipaddr);
8566 qeth_set_ip_addr_list(card);
8567 return 0;
8568 }
8569
8570 void
8571 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8572 const u8 *addr)
8573 {
8574 struct qeth_ipaddr *ipaddr;
8575
8576 ipaddr = qeth_get_addr_buffer(proto);
8577 if (ipaddr){
8578 if (proto == QETH_PROT_IPV4){
8579 QETH_DBF_TEXT(trace, 2, "addrxip4");
8580 memcpy(&ipaddr->u.a4.addr, addr, 4);
8581 ipaddr->u.a4.mask = 0;
8582 #ifdef CONFIG_QETH_IPV6
8583 } else if (proto == QETH_PROT_IPV6){
8584 QETH_DBF_TEXT(trace, 2, "addrxip6");
8585 memcpy(&ipaddr->u.a6.addr, addr, 16);
8586 ipaddr->u.a6.pfxlen = 0;
8587 #endif
8588 }
8589 ipaddr->type = QETH_IP_TYPE_RXIP;
8590 } else
8591 return;
8592 if (!qeth_delete_ip(card, ipaddr))
8593 kfree(ipaddr);
8594 qeth_set_ip_addr_list(card);
8595 }
8596
8597 /**
8598 * IP event handler
8599 */
8600 static int
8601 qeth_ip_event(struct notifier_block *this,
8602 unsigned long event,void *ptr)
8603 {
8604 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8605 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8606 struct qeth_ipaddr *addr;
8607 struct qeth_card *card;
8608
8609 QETH_DBF_TEXT(trace,3,"ipevent");
8610 card = qeth_get_card_from_dev(dev);
8611 if (!card)
8612 return NOTIFY_DONE;
8613 if (card->options.layer2)
8614 return NOTIFY_DONE;
8615
8616 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8617 if (addr != NULL) {
8618 addr->u.a4.addr = ifa->ifa_address;
8619 addr->u.a4.mask = ifa->ifa_mask;
8620 addr->type = QETH_IP_TYPE_NORMAL;
8621 } else
8622 goto out;
8623
8624 switch(event) {
8625 case NETDEV_UP:
8626 if (!qeth_add_ip(card, addr))
8627 kfree(addr);
8628 break;
8629 case NETDEV_DOWN:
8630 if (!qeth_delete_ip(card, addr))
8631 kfree(addr);
8632 break;
8633 default:
8634 break;
8635 }
8636 qeth_set_ip_addr_list(card);
8637 out:
8638 return NOTIFY_DONE;
8639 }
8640
8641 static struct notifier_block qeth_ip_notifier = {
8642 qeth_ip_event,
8643 NULL,
8644 };
8645
8646 #ifdef CONFIG_QETH_IPV6
8647 /**
8648 * IPv6 event handler
8649 */
8650 static int
8651 qeth_ip6_event(struct notifier_block *this,
8652 unsigned long event,void *ptr)
8653 {
8654
8655 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8656 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8657 struct qeth_ipaddr *addr;
8658 struct qeth_card *card;
8659
8660 QETH_DBF_TEXT(trace,3,"ip6event");
8661
8662 card = qeth_get_card_from_dev(dev);
8663 if (!card)
8664 return NOTIFY_DONE;
8665 if (!qeth_is_supported(card, IPA_IPV6))
8666 return NOTIFY_DONE;
8667
8668 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8669 if (addr != NULL) {
8670 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8671 addr->u.a6.pfxlen = ifa->prefix_len;
8672 addr->type = QETH_IP_TYPE_NORMAL;
8673 } else
8674 goto out;
8675
8676 switch(event) {
8677 case NETDEV_UP:
8678 if (!qeth_add_ip(card, addr))
8679 kfree(addr);
8680 break;
8681 case NETDEV_DOWN:
8682 if (!qeth_delete_ip(card, addr))
8683 kfree(addr);
8684 break;
8685 default:
8686 break;
8687 }
8688 qeth_set_ip_addr_list(card);
8689 out:
8690 return NOTIFY_DONE;
8691 }
8692
8693 static struct notifier_block qeth_ip6_notifier = {
8694 qeth_ip6_event,
8695 NULL,
8696 };
8697 #endif
8698
8699 static int
8700 __qeth_reboot_event_card(struct device *dev, void *data)
8701 {
8702 struct qeth_card *card;
8703
8704 card = (struct qeth_card *) dev->driver_data;
8705 qeth_clear_ip_list(card, 0, 0);
8706 qeth_qdio_clear_card(card, 0);
8707 qeth_clear_qdio_buffers(card);
8708 return 0;
8709 }
8710
8711 static int
8712 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8713 {
8714 int ret;
8715
8716 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8717 __qeth_reboot_event_card);
8718 return ret ? NOTIFY_BAD : NOTIFY_DONE;
8719 }
8720
8721
8722 static struct notifier_block qeth_reboot_notifier = {
8723 qeth_reboot_event,
8724 NULL,
8725 };
8726
8727 static int
8728 qeth_register_notifiers(void)
8729 {
8730 int r;
8731
8732 QETH_DBF_TEXT(trace,5,"regnotif");
8733 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8734 return r;
8735 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8736 goto out_reboot;
8737 #ifdef CONFIG_QETH_IPV6
8738 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8739 goto out_ipv4;
8740 #endif
8741 return 0;
8742
8743 #ifdef CONFIG_QETH_IPV6
8744 out_ipv4:
8745 unregister_inetaddr_notifier(&qeth_ip_notifier);
8746 #endif
8747 out_reboot:
8748 unregister_reboot_notifier(&qeth_reboot_notifier);
8749 return r;
8750 }
8751
8752 /**
8753 * unregister all event notifiers
8754 */
8755 static void
8756 qeth_unregister_notifiers(void)
8757 {
8758
8759 QETH_DBF_TEXT(trace,5,"unregnot");
8760 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8761 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8762 #ifdef CONFIG_QETH_IPV6
8763 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8764 #endif /* QETH_IPV6 */
8765
8766 }
8767
8768 #ifdef CONFIG_QETH_IPV6
8769 static int
8770 qeth_ipv6_init(void)
8771 {
8772 qeth_old_arp_constructor = arp_tbl.constructor;
8773 write_lock_bh(&arp_tbl.lock);
8774 arp_tbl.constructor = qeth_arp_constructor;
8775 write_unlock_bh(&arp_tbl.lock);
8776
8777 arp_direct_ops = (struct neigh_ops*)
8778 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8779 if (!arp_direct_ops)
8780 return -ENOMEM;
8781
8782 memcpy(arp_direct_ops, &arp_direct_ops_template,
8783 sizeof(struct neigh_ops));
8784
8785 return 0;
8786 }
8787
8788 static void
8789 qeth_ipv6_uninit(void)
8790 {
8791 write_lock_bh(&arp_tbl.lock);
8792 arp_tbl.constructor = qeth_old_arp_constructor;
8793 write_unlock_bh(&arp_tbl.lock);
8794 kfree(arp_direct_ops);
8795 }
8796 #endif /* CONFIG_QETH_IPV6 */
8797
8798 static void
8799 qeth_sysfs_unregister(void)
8800 {
8801 s390_root_dev_unregister(qeth_root_dev);
8802 qeth_remove_driver_attributes();
8803 ccw_driver_unregister(&qeth_ccw_driver);
8804 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8805 }
8806
8807 /**
8808 * register qeth at sysfs
8809 */
8810 static int
8811 qeth_sysfs_register(void)
8812 {
8813 int rc;
8814
8815 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8816 if (rc)
8817 goto out;
8818
8819 rc = ccw_driver_register(&qeth_ccw_driver);
8820 if (rc)
8821 goto out_ccw_driver;
8822
8823 rc = qeth_create_driver_attributes();
8824 if (rc)
8825 goto out_qeth_attr;
8826
8827 qeth_root_dev = s390_root_dev_register("qeth");
8828 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8829 if (!rc)
8830 goto out;
8831
8832 qeth_remove_driver_attributes();
8833 out_qeth_attr:
8834 ccw_driver_unregister(&qeth_ccw_driver);
8835 out_ccw_driver:
8836 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8837 out:
8838 return rc;
8839 }
8840
8841 /***
8842 * init function
8843 */
8844 static int __init
8845 qeth_init(void)
8846 {
8847 int rc;
8848
8849 PRINT_INFO("loading %s\n", version);
8850
8851 INIT_LIST_HEAD(&qeth_card_list.list);
8852 INIT_LIST_HEAD(&qeth_notify_list);
8853 spin_lock_init(&qeth_notify_lock);
8854 rwlock_init(&qeth_card_list.rwlock);
8855
8856 rc = qeth_register_dbf_views();
8857 if (rc)
8858 goto out_err;
8859
8860 rc = qeth_sysfs_register();
8861 if (rc)
8862 goto out_dbf;
8863
8864 #ifdef CONFIG_QETH_IPV6
8865 rc = qeth_ipv6_init();
8866 if (rc) {
8867 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8868 goto out_sysfs;
8869 }
8870 #endif /* QETH_IPV6 */
8871 rc = qeth_register_notifiers();
8872 if (rc)
8873 goto out_ipv6;
8874 rc = qeth_create_procfs_entries();
8875 if (rc)
8876 goto out_notifiers;
8877
8878 return rc;
8879
8880 out_notifiers:
8881 qeth_unregister_notifiers();
8882 out_ipv6:
8883 #ifdef CONFIG_QETH_IPV6
8884 qeth_ipv6_uninit();
8885 out_sysfs:
8886 #endif /* QETH_IPV6 */
8887 qeth_sysfs_unregister();
8888 out_dbf:
8889 qeth_unregister_dbf_views();
8890 out_err:
8891 PRINT_ERR("Initialization failed with code %d\n", rc);
8892 return rc;
8893 }
8894
8895 static void
8896 __exit qeth_exit(void)
8897 {
8898 struct qeth_card *card, *tmp;
8899 unsigned long flags;
8900
8901 QETH_DBF_TEXT(trace,1, "cleanup.");
8902
8903 /*
8904 * Weed would not need to clean up our devices here, because the
8905 * common device layer calls qeth_remove_device for each device
8906 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8907 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8908 * qeth_remove_device called by the common device layer would otherwise
8909 * do a "hard" shutdown (card->use_hard_stop is set to one in
8910 * qeth_remove_device).
8911 */
8912 again:
8913 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8914 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8915 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8916 qeth_set_offline(card->gdev);
8917 qeth_remove_device(card->gdev);
8918 goto again;
8919 }
8920 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8921 #ifdef CONFIG_QETH_IPV6
8922 qeth_ipv6_uninit();
8923 #endif
8924 qeth_unregister_notifiers();
8925 qeth_remove_procfs_entries();
8926 qeth_sysfs_unregister();
8927 qeth_unregister_dbf_views();
8928 printk("qeth: removed\n");
8929 }
8930
8931 EXPORT_SYMBOL(qeth_osn_register);
8932 EXPORT_SYMBOL(qeth_osn_deregister);
8933 EXPORT_SYMBOL(qeth_osn_assist);
8934 module_init(qeth_init);
8935 module_exit(qeth_exit);
8936 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8937 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8938 "Copyright 2000,2003 IBM Corporation\n");
8939
8940 MODULE_LICENSE("GPL");
kmemtrace - Kernel memory tracer