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[PATCH] s390: atomic primitives
[linux-2.6/kmemtrace.git] / drivers / s390 / net / qeth_main.c
blob7b2663f2781700de74f2e98ab19ef36d4b7abc69
1 /*
2 *
3 * linux/drivers/s390/net/qeth_main.c ($Revision: 1.251 $)
4 *
5 * Linux on zSeries OSA Express and HiperSockets support
6 *
7 * Copyright 2000,2003 IBM Corporation
8 *
9 * Author(s): Original Code written by
10 * Utz Bacher (utz.bacher@de.ibm.com)
11 * Rewritten by
12 * Frank Pavlic (fpavlic@de.ibm.com) and
13 * Thomas Spatzier <tspat@de.ibm.com>
14 *
15 * $Revision: 1.251 $ $Date: 2005/05/04 20:19:18 $
16 *
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2, or (at your option)
20 * any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
30 */
31
32
33 #include <linux/config.h>
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/string.h>
37 #include <linux/errno.h>
38 #include <linux/mm.h>
39 #include <linux/ip.h>
40 #include <linux/inetdevice.h>
41 #include <linux/netdevice.h>
42 #include <linux/sched.h>
43 #include <linux/workqueue.h>
44 #include <linux/kernel.h>
45 #include <linux/slab.h>
46 #include <linux/interrupt.h>
47 #include <linux/tcp.h>
48 #include <linux/icmp.h>
49 #include <linux/skbuff.h>
50 #include <linux/in.h>
51 #include <linux/igmp.h>
52 #include <linux/init.h>
53 #include <linux/reboot.h>
54 #include <linux/mii.h>
55 #include <linux/rcupdate.h>
56 #include <linux/ethtool.h>
57
58 #include <net/arp.h>
59 #include <net/ip.h>
60 #include <net/route.h>
61
62 #include <asm/ebcdic.h>
63 #include <asm/io.h>
64 #include <asm/qeth.h>
65 #include <asm/timex.h>
66 #include <asm/semaphore.h>
67 #include <asm/uaccess.h>
68
69 #include "qeth.h"
70 #include "qeth_mpc.h"
71 #include "qeth_fs.h"
72 #include "qeth_eddp.h"
73 #include "qeth_tso.h"
74
75 #define VERSION_QETH_C "$Revision: 1.251 $"
76 static const char *version = "qeth S/390 OSA-Express driver";
77
78 /**
79 * Debug Facility Stuff
80 */
81 static debug_info_t *qeth_dbf_setup = NULL;
82 static debug_info_t *qeth_dbf_data = NULL;
83 static debug_info_t *qeth_dbf_misc = NULL;
84 static debug_info_t *qeth_dbf_control = NULL;
85 debug_info_t *qeth_dbf_trace = NULL;
86 static debug_info_t *qeth_dbf_sense = NULL;
87 static debug_info_t *qeth_dbf_qerr = NULL;
88
89 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
90
91 /**
92 * some more definitions and declarations
93 */
94 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
95
96 /* list of our cards */
97 struct qeth_card_list_struct qeth_card_list;
98 /*process list want to be notified*/
99 spinlock_t qeth_notify_lock;
100 struct list_head qeth_notify_list;
101
102 static void qeth_send_control_data_cb(struct qeth_channel *,
103 struct qeth_cmd_buffer *);
104
105 /**
106 * here we go with function implementation
107 */
108 static void
109 qeth_init_qdio_info(struct qeth_card *card);
110
111 static int
112 qeth_init_qdio_queues(struct qeth_card *card);
113
114 static int
115 qeth_alloc_qdio_buffers(struct qeth_card *card);
116
117 static void
118 qeth_free_qdio_buffers(struct qeth_card *);
119
120 static void
121 qeth_clear_qdio_buffers(struct qeth_card *);
122
123 static void
124 qeth_clear_ip_list(struct qeth_card *, int, int);
125
126 static void
127 qeth_clear_ipacmd_list(struct qeth_card *);
128
129 static int
130 qeth_qdio_clear_card(struct qeth_card *, int);
131
132 static void
133 qeth_clear_working_pool_list(struct qeth_card *);
134
135 static void
136 qeth_clear_cmd_buffers(struct qeth_channel *);
137
138 static int
139 qeth_stop(struct net_device *);
140
141 static void
142 qeth_clear_ipato_list(struct qeth_card *);
143
144 static int
145 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
146
147 static void
148 qeth_irq_tasklet(unsigned long);
149
150 static int
151 qeth_set_online(struct ccwgroup_device *);
152
153 static int
154 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
155
156 static struct qeth_ipaddr *
157 qeth_get_addr_buffer(enum qeth_prot_versions);
158
159 static void
160 qeth_set_multicast_list(struct net_device *);
161
162 static void
163 qeth_setadp_promisc_mode(struct qeth_card *);
164
165 static void
166 qeth_notify_processes(void)
167 {
168 /*notify all registered processes */
169 struct qeth_notify_list_struct *n_entry;
170
171 QETH_DBF_TEXT(trace,3,"procnoti");
172 spin_lock(&qeth_notify_lock);
173 list_for_each_entry(n_entry, &qeth_notify_list, list) {
174 send_sig(n_entry->signum, n_entry->task, 1);
175 }
176 spin_unlock(&qeth_notify_lock);
177
178 }
179 int
180 qeth_notifier_unregister(struct task_struct *p)
181 {
182 struct qeth_notify_list_struct *n_entry, *tmp;
183
184 QETH_DBF_TEXT(trace, 2, "notunreg");
185 spin_lock(&qeth_notify_lock);
186 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
187 if (n_entry->task == p) {
188 list_del(&n_entry->list);
189 kfree(n_entry);
190 goto out;
191 }
192 }
193 out:
194 spin_unlock(&qeth_notify_lock);
195 return 0;
196 }
197 int
198 qeth_notifier_register(struct task_struct *p, int signum)
199 {
200 struct qeth_notify_list_struct *n_entry;
201
202 /*check first if entry already exists*/
203 spin_lock(&qeth_notify_lock);
204 list_for_each_entry(n_entry, &qeth_notify_list, list) {
205 if (n_entry->task == p) {
206 n_entry->signum = signum;
207 spin_unlock(&qeth_notify_lock);
208 return 0;
209 }
210 }
211 spin_unlock(&qeth_notify_lock);
212
213 n_entry = (struct qeth_notify_list_struct *)
214 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
215 if (!n_entry)
216 return -ENOMEM;
217 n_entry->task = p;
218 n_entry->signum = signum;
219 spin_lock(&qeth_notify_lock);
220 list_add(&n_entry->list,&qeth_notify_list);
221 spin_unlock(&qeth_notify_lock);
222 return 0;
223 }
224
225
226 /**
227 * free channel command buffers
228 */
229 static void
230 qeth_clean_channel(struct qeth_channel *channel)
231 {
232 int cnt;
233
234 QETH_DBF_TEXT(setup, 2, "freech");
235 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
236 kfree(channel->iob[cnt].data);
237 }
238
239 /**
240 * free card
241 */
242 static void
243 qeth_free_card(struct qeth_card *card)
244 {
245
246 QETH_DBF_TEXT(setup, 2, "freecrd");
247 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
248 qeth_clean_channel(&card->read);
249 qeth_clean_channel(&card->write);
250 if (card->dev)
251 free_netdev(card->dev);
252 qeth_clear_ip_list(card, 0, 0);
253 qeth_clear_ipato_list(card);
254 kfree(card->ip_tbd_list);
255 qeth_free_qdio_buffers(card);
256 kfree(card);
257 }
258
259 /**
260 * alloc memory for command buffer per channel
261 */
262 static int
263 qeth_setup_channel(struct qeth_channel *channel)
264 {
265 int cnt;
266
267 QETH_DBF_TEXT(setup, 2, "setupch");
268 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
269 channel->iob[cnt].data = (char *)
270 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
271 if (channel->iob[cnt].data == NULL)
272 break;
273 channel->iob[cnt].state = BUF_STATE_FREE;
274 channel->iob[cnt].channel = channel;
275 channel->iob[cnt].callback = qeth_send_control_data_cb;
276 channel->iob[cnt].rc = 0;
277 }
278 if (cnt < QETH_CMD_BUFFER_NO) {
279 while (cnt-- > 0)
280 kfree(channel->iob[cnt].data);
281 return -ENOMEM;
282 }
283 channel->buf_no = 0;
284 channel->io_buf_no = 0;
285 atomic_set(&channel->irq_pending, 0);
286 spin_lock_init(&channel->iob_lock);
287
288 init_waitqueue_head(&channel->wait_q);
289 channel->irq_tasklet.data = (unsigned long) channel;
290 channel->irq_tasklet.func = qeth_irq_tasklet;
291 return 0;
292 }
293
294 /**
295 * alloc memory for card structure
296 */
297 static struct qeth_card *
298 qeth_alloc_card(void)
299 {
300 struct qeth_card *card;
301
302 QETH_DBF_TEXT(setup, 2, "alloccrd");
303 card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
304 GFP_DMA|GFP_KERNEL);
305 if (!card)
306 return NULL;
307 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
308 memset(card, 0, sizeof(struct qeth_card));
309 if (qeth_setup_channel(&card->read)) {
310 kfree(card);
311 return NULL;
312 }
313 if (qeth_setup_channel(&card->write)) {
314 qeth_clean_channel(&card->read);
315 kfree(card);
316 return NULL;
317 }
318 return card;
319 }
320
321 static long
322 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
323 {
324 if (!IS_ERR(irb))
325 return 0;
326
327 switch (PTR_ERR(irb)) {
328 case -EIO:
329 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
330 QETH_DBF_TEXT(trace, 2, "ckirberr");
331 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
332 break;
333 case -ETIMEDOUT:
334 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
335 QETH_DBF_TEXT(trace, 2, "ckirberr");
336 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
337 break;
338 default:
339 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
340 cdev->dev.bus_id);
341 QETH_DBF_TEXT(trace, 2, "ckirberr");
342 QETH_DBF_TEXT(trace, 2, " rc???");
343 }
344 return PTR_ERR(irb);
345 }
346
347 static int
348 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
349 {
350 int dstat,cstat;
351 char *sense;
352
353 sense = (char *) irb->ecw;
354 cstat = irb->scsw.cstat;
355 dstat = irb->scsw.dstat;
356
357 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
358 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
359 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
360 QETH_DBF_TEXT(trace,2, "CGENCHK");
361 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
362 cdev->dev.bus_id, dstat, cstat);
363 HEXDUMP16(WARN, "irb: ", irb);
364 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
365 return 1;
366 }
367
368 if (dstat & DEV_STAT_UNIT_CHECK) {
369 if (sense[SENSE_RESETTING_EVENT_BYTE] &
370 SENSE_RESETTING_EVENT_FLAG) {
371 QETH_DBF_TEXT(trace,2,"REVIND");
372 return 1;
373 }
374 if (sense[SENSE_COMMAND_REJECT_BYTE] &
375 SENSE_COMMAND_REJECT_FLAG) {
376 QETH_DBF_TEXT(trace,2,"CMDREJi");
377 return 0;
378 }
379 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
380 QETH_DBF_TEXT(trace,2,"AFFE");
381 return 1;
382 }
383 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
384 QETH_DBF_TEXT(trace,2,"ZEROSEN");
385 return 0;
386 }
387 QETH_DBF_TEXT(trace,2,"DGENCHK");
388 return 1;
389 }
390 return 0;
391 }
392 static int qeth_issue_next_read(struct qeth_card *);
393
394 /**
395 * interrupt handler
396 */
397 static void
398 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
399 {
400 int rc;
401 int cstat,dstat;
402 struct qeth_cmd_buffer *buffer;
403 struct qeth_channel *channel;
404 struct qeth_card *card;
405
406 QETH_DBF_TEXT(trace,5,"irq");
407
408 if (__qeth_check_irb_error(cdev, irb))
409 return;
410 cstat = irb->scsw.cstat;
411 dstat = irb->scsw.dstat;
412
413 card = CARD_FROM_CDEV(cdev);
414 if (!card)
415 return;
416
417 if (card->read.ccwdev == cdev){
418 channel = &card->read;
419 QETH_DBF_TEXT(trace,5,"read");
420 } else if (card->write.ccwdev == cdev) {
421 channel = &card->write;
422 QETH_DBF_TEXT(trace,5,"write");
423 } else {
424 channel = &card->data;
425 QETH_DBF_TEXT(trace,5,"data");
426 }
427 atomic_set(&channel->irq_pending, 0);
428
429 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
430 channel->state = CH_STATE_STOPPED;
431
432 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
433 channel->state = CH_STATE_HALTED;
434
435 /*let's wake up immediately on data channel*/
436 if ((channel == &card->data) && (intparm != 0))
437 goto out;
438
439 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
440 QETH_DBF_TEXT(trace, 6, "clrchpar");
441 /* we don't have to handle this further */
442 intparm = 0;
443 }
444 if (intparm == QETH_HALT_CHANNEL_PARM) {
445 QETH_DBF_TEXT(trace, 6, "hltchpar");
446 /* we don't have to handle this further */
447 intparm = 0;
448 }
449 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
450 (dstat & DEV_STAT_UNIT_CHECK) ||
451 (cstat)) {
452 if (irb->esw.esw0.erw.cons) {
453 /* TODO: we should make this s390dbf */
454 PRINT_WARN("sense data available on channel %s.\n",
455 CHANNEL_ID(channel));
456 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
457 HEXDUMP16(WARN,"irb: ",irb);
458 HEXDUMP16(WARN,"sense data: ",irb->ecw);
459 }
460 rc = qeth_get_problem(cdev,irb);
461 if (rc) {
462 qeth_schedule_recovery(card);
463 goto out;
464 }
465 }
466
467 if (intparm) {
468 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
469 buffer->state = BUF_STATE_PROCESSED;
470 }
471 if (channel == &card->data)
472 return;
473
474 if (channel == &card->read &&
475 channel->state == CH_STATE_UP)
476 qeth_issue_next_read(card);
477
478 tasklet_schedule(&channel->irq_tasklet);
479 return;
480 out:
481 wake_up(&card->wait_q);
482 }
483
484 /**
485 * tasklet function scheduled from irq handler
486 */
487 static void
488 qeth_irq_tasklet(unsigned long data)
489 {
490 struct qeth_card *card;
491 struct qeth_channel *channel;
492 struct qeth_cmd_buffer *iob;
493 __u8 index;
494
495 QETH_DBF_TEXT(trace,5,"irqtlet");
496 channel = (struct qeth_channel *) data;
497 iob = channel->iob;
498 index = channel->buf_no;
499 card = CARD_FROM_CDEV(channel->ccwdev);
500 while (iob[index].state == BUF_STATE_PROCESSED) {
501 if (iob[index].callback !=NULL) {
502 iob[index].callback(channel,iob + index);
503 }
504 index = (index + 1) % QETH_CMD_BUFFER_NO;
505 }
506 channel->buf_no = index;
507 wake_up(&card->wait_q);
508 }
509
510 static int qeth_stop_card(struct qeth_card *, int);
511
512 static int
513 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
514 {
515 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
516 int rc = 0, rc2 = 0, rc3 = 0;
517 enum qeth_card_states recover_flag;
518
519 QETH_DBF_TEXT(setup, 3, "setoffl");
520 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
521
522 netif_carrier_off(card->dev);
523 recover_flag = card->state;
524 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
525 PRINT_WARN("Stopping card %s interrupted by user!\n",
526 CARD_BUS_ID(card));
527 return -ERESTARTSYS;
528 }
529 rc = ccw_device_set_offline(CARD_DDEV(card));
530 rc2 = ccw_device_set_offline(CARD_WDEV(card));
531 rc3 = ccw_device_set_offline(CARD_RDEV(card));
532 if (!rc)
533 rc = (rc2) ? rc2 : rc3;
534 if (rc)
535 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
536 if (recover_flag == CARD_STATE_UP)
537 card->state = CARD_STATE_RECOVER;
538 qeth_notify_processes();
539 return 0;
540 }
541
542 static int
543 qeth_set_offline(struct ccwgroup_device *cgdev)
544 {
545 return __qeth_set_offline(cgdev, 0);
546 }
547
548 static int
549 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
550
551
552 static void
553 qeth_remove_device(struct ccwgroup_device *cgdev)
554 {
555 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
556 unsigned long flags;
557
558 QETH_DBF_TEXT(setup, 3, "rmdev");
559 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
560
561 if (!card)
562 return;
563
564 if (qeth_wait_for_threads(card, 0xffffffff))
565 return;
566
567 if (cgdev->state == CCWGROUP_ONLINE){
568 card->use_hard_stop = 1;
569 qeth_set_offline(cgdev);
570 }
571 /* remove form our internal list */
572 write_lock_irqsave(&qeth_card_list.rwlock, flags);
573 list_del(&card->list);
574 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
575 if (card->dev)
576 unregister_netdev(card->dev);
577 qeth_remove_device_attributes(&cgdev->dev);
578 qeth_free_card(card);
579 cgdev->dev.driver_data = NULL;
580 put_device(&cgdev->dev);
581 }
582
583 static int
584 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
585 static int
586 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
587
588 /**
589 * Add/remove address to/from card's ip list, i.e. try to add or remove
590 * reference to/from an IP address that is already registered on the card.
591 * Returns:
592 * 0 address was on card and its reference count has been adjusted,
593 * but is still > 0, so nothing has to be done
594 * also returns 0 if card was not on card and the todo was to delete
595 * the address -> there is also nothing to be done
596 * 1 address was not on card and the todo is to add it to the card's ip
597 * list
598 * -1 address was on card and its reference count has been decremented
599 * to <= 0 by the todo -> address must be removed from card
600 */
601 static int
602 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
603 struct qeth_ipaddr **__addr)
604 {
605 struct qeth_ipaddr *addr;
606 int found = 0;
607
608 list_for_each_entry(addr, &card->ip_list, entry) {
609 if (card->options.layer2) {
610 if ((addr->type == todo->type) &&
611 (memcmp(&addr->mac, &todo->mac,
612 OSA_ADDR_LEN) == 0)) {
613 found = 1;
614 break;
615 }
616 continue;
617 }
618 if ((addr->proto == QETH_PROT_IPV4) &&
619 (todo->proto == QETH_PROT_IPV4) &&
620 (addr->type == todo->type) &&
621 (addr->u.a4.addr == todo->u.a4.addr) &&
622 (addr->u.a4.mask == todo->u.a4.mask)) {
623 found = 1;
624 break;
625 }
626 if ((addr->proto == QETH_PROT_IPV6) &&
627 (todo->proto == QETH_PROT_IPV6) &&
628 (addr->type == todo->type) &&
629 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
630 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
631 sizeof(struct in6_addr)) == 0)) {
632 found = 1;
633 break;
634 }
635 }
636 if (found) {
637 addr->users += todo->users;
638 if (addr->users <= 0){
639 *__addr = addr;
640 return -1;
641 } else {
642 /* for VIPA and RXIP limit refcount to 1 */
643 if (addr->type != QETH_IP_TYPE_NORMAL)
644 addr->users = 1;
645 return 0;
646 }
647 }
648 if (todo->users > 0) {
649 /* for VIPA and RXIP limit refcount to 1 */
650 if (todo->type != QETH_IP_TYPE_NORMAL)
651 todo->users = 1;
652 return 1;
653 } else
654 return 0;
655 }
656
657 static inline int
658 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
659 int same_type)
660 {
661 struct qeth_ipaddr *tmp;
662
663 list_for_each_entry(tmp, list, entry) {
664 if ((tmp->proto == QETH_PROT_IPV4) &&
665 (addr->proto == QETH_PROT_IPV4) &&
666 ((same_type && (tmp->type == addr->type)) ||
667 (!same_type && (tmp->type != addr->type)) ) &&
668 (tmp->u.a4.addr == addr->u.a4.addr) ){
669 return 1;
670 }
671 if ((tmp->proto == QETH_PROT_IPV6) &&
672 (addr->proto == QETH_PROT_IPV6) &&
673 ((same_type && (tmp->type == addr->type)) ||
674 (!same_type && (tmp->type != addr->type)) ) &&
675 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
676 sizeof(struct in6_addr)) == 0) ) {
677 return 1;
678 }
679 }
680 return 0;
681 }
682
683 /*
684 * Add IP to be added to todo list. If there is already an "add todo"
685 * in this list we just incremenent the reference count.
686 * Returns 0 if we just incremented reference count.
687 */
688 static int
689 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
690 {
691 struct qeth_ipaddr *tmp, *t;
692 int found = 0;
693
694 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
695 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
696 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
697 return 0;
698 if (card->options.layer2) {
699 if ((tmp->type == addr->type) &&
700 (tmp->is_multicast == addr->is_multicast) &&
701 (memcmp(&tmp->mac, &addr->mac,
702 OSA_ADDR_LEN) == 0)) {
703 found = 1;
704 break;
705 }
706 continue;
707 }
708 if ((tmp->proto == QETH_PROT_IPV4) &&
709 (addr->proto == QETH_PROT_IPV4) &&
710 (tmp->type == addr->type) &&
711 (tmp->is_multicast == addr->is_multicast) &&
712 (tmp->u.a4.addr == addr->u.a4.addr) &&
713 (tmp->u.a4.mask == addr->u.a4.mask)) {
714 found = 1;
715 break;
716 }
717 if ((tmp->proto == QETH_PROT_IPV6) &&
718 (addr->proto == QETH_PROT_IPV6) &&
719 (tmp->type == addr->type) &&
720 (tmp->is_multicast == addr->is_multicast) &&
721 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
722 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
723 sizeof(struct in6_addr)) == 0)) {
724 found = 1;
725 break;
726 }
727 }
728 if (found){
729 if (addr->users != 0)
730 tmp->users += addr->users;
731 else
732 tmp->users += add? 1:-1;
733 if (tmp->users == 0) {
734 list_del(&tmp->entry);
735 kfree(tmp);
736 }
737 return 0;
738 } else {
739 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
740 list_add(&addr->entry, card->ip_tbd_list);
741 else {
742 if (addr->users == 0)
743 addr->users += add? 1:-1;
744 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
745 qeth_is_addr_covered_by_ipato(card, addr)){
746 QETH_DBF_TEXT(trace, 2, "tkovaddr");
747 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
748 }
749 list_add_tail(&addr->entry, card->ip_tbd_list);
750 }
751 return 1;
752 }
753 }
754
755 /**
756 * Remove IP address from list
757 */
758 static int
759 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
760 {
761 unsigned long flags;
762 int rc = 0;
763
764 QETH_DBF_TEXT(trace, 4, "delip");
765
766 if (card->options.layer2)
767 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
768 else if (addr->proto == QETH_PROT_IPV4)
769 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
770 else {
771 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
772 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
773 }
774 spin_lock_irqsave(&card->ip_lock, flags);
775 rc = __qeth_insert_ip_todo(card, addr, 0);
776 spin_unlock_irqrestore(&card->ip_lock, flags);
777 return rc;
778 }
779
780 static int
781 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
782 {
783 unsigned long flags;
784 int rc = 0;
785
786 QETH_DBF_TEXT(trace, 4, "addip");
787 if (card->options.layer2)
788 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
789 else if (addr->proto == QETH_PROT_IPV4)
790 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
791 else {
792 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
793 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
794 }
795 spin_lock_irqsave(&card->ip_lock, flags);
796 rc = __qeth_insert_ip_todo(card, addr, 1);
797 spin_unlock_irqrestore(&card->ip_lock, flags);
798 return rc;
799 }
800
801 static inline void
802 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
803 {
804 struct qeth_ipaddr *addr, *tmp;
805 int rc;
806 again:
807 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
808 if (addr->is_multicast) {
809 spin_unlock_irqrestore(&card->ip_lock, *flags);
810 rc = qeth_deregister_addr_entry(card, addr);
811 spin_lock_irqsave(&card->ip_lock, *flags);
812 if (!rc) {
813 list_del(&addr->entry);
814 kfree(addr);
815 goto again;
816 }
817 }
818 }
819 }
820
821 static void
822 qeth_set_ip_addr_list(struct qeth_card *card)
823 {
824 struct list_head *tbd_list;
825 struct qeth_ipaddr *todo, *addr;
826 unsigned long flags;
827 int rc;
828
829 QETH_DBF_TEXT(trace, 2, "sdiplist");
830 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
831
832 spin_lock_irqsave(&card->ip_lock, flags);
833 tbd_list = card->ip_tbd_list;
834 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
835 if (!card->ip_tbd_list) {
836 QETH_DBF_TEXT(trace, 0, "silnomem");
837 card->ip_tbd_list = tbd_list;
838 spin_unlock_irqrestore(&card->ip_lock, flags);
839 return;
840 } else
841 INIT_LIST_HEAD(card->ip_tbd_list);
842
843 while (!list_empty(tbd_list)){
844 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
845 list_del(&todo->entry);
846 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
847 __qeth_delete_all_mc(card, &flags);
848 kfree(todo);
849 continue;
850 }
851 rc = __qeth_ref_ip_on_card(card, todo, &addr);
852 if (rc == 0) {
853 /* nothing to be done; only adjusted refcount */
854 kfree(todo);
855 } else if (rc == 1) {
856 /* new entry to be added to on-card list */
857 spin_unlock_irqrestore(&card->ip_lock, flags);
858 rc = qeth_register_addr_entry(card, todo);
859 spin_lock_irqsave(&card->ip_lock, flags);
860 if (!rc)
861 list_add_tail(&todo->entry, &card->ip_list);
862 else
863 kfree(todo);
864 } else if (rc == -1) {
865 /* on-card entry to be removed */
866 list_del_init(&addr->entry);
867 spin_unlock_irqrestore(&card->ip_lock, flags);
868 rc = qeth_deregister_addr_entry(card, addr);
869 spin_lock_irqsave(&card->ip_lock, flags);
870 if (!rc)
871 kfree(addr);
872 else
873 list_add_tail(&addr->entry, &card->ip_list);
874 kfree(todo);
875 }
876 }
877 spin_unlock_irqrestore(&card->ip_lock, flags);
878 kfree(tbd_list);
879 }
880
881 static void qeth_delete_mc_addresses(struct qeth_card *);
882 static void qeth_add_multicast_ipv4(struct qeth_card *);
883 static void qeth_layer2_add_multicast(struct qeth_card *);
884 #ifdef CONFIG_QETH_IPV6
885 static void qeth_add_multicast_ipv6(struct qeth_card *);
886 #endif
887
888 static inline int
889 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
890 {
891 unsigned long flags;
892
893 spin_lock_irqsave(&card->thread_mask_lock, flags);
894 if ( !(card->thread_allowed_mask & thread) ||
895 (card->thread_start_mask & thread) ) {
896 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
897 return -EPERM;
898 }
899 card->thread_start_mask |= thread;
900 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
901 return 0;
902 }
903
904 static void
905 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
906 {
907 unsigned long flags;
908
909 spin_lock_irqsave(&card->thread_mask_lock, flags);
910 card->thread_start_mask &= ~thread;
911 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
912 wake_up(&card->wait_q);
913 }
914
915 static void
916 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
917 {
918 unsigned long flags;
919
920 spin_lock_irqsave(&card->thread_mask_lock, flags);
921 card->thread_running_mask &= ~thread;
922 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
923 wake_up(&card->wait_q);
924 }
925
926 static inline int
927 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
928 {
929 unsigned long flags;
930 int rc = 0;
931
932 spin_lock_irqsave(&card->thread_mask_lock, flags);
933 if (card->thread_start_mask & thread){
934 if ((card->thread_allowed_mask & thread) &&
935 !(card->thread_running_mask & thread)){
936 rc = 1;
937 card->thread_start_mask &= ~thread;
938 card->thread_running_mask |= thread;
939 } else
940 rc = -EPERM;
941 }
942 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
943 return rc;
944 }
945
946 static int
947 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
948 {
949 int rc = 0;
950
951 wait_event(card->wait_q,
952 (rc = __qeth_do_run_thread(card, thread)) >= 0);
953 return rc;
954 }
955
956 static int
957 qeth_register_ip_addresses(void *ptr)
958 {
959 struct qeth_card *card;
960
961 card = (struct qeth_card *) ptr;
962 daemonize("qeth_reg_ip");
963 QETH_DBF_TEXT(trace,4,"regipth1");
964 if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
965 return 0;
966 QETH_DBF_TEXT(trace,4,"regipth2");
967 qeth_set_ip_addr_list(card);
968 qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
969 return 0;
970 }
971
972 /*
973 * Drive the SET_PROMISC_MODE thread
974 */
975 static int
976 qeth_set_promisc_mode(void *ptr)
977 {
978 struct qeth_card *card = (struct qeth_card *) ptr;
979
980 daemonize("qeth_setprm");
981 QETH_DBF_TEXT(trace,4,"setprm1");
982 if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
983 return 0;
984 QETH_DBF_TEXT(trace,4,"setprm2");
985 qeth_setadp_promisc_mode(card);
986 qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
987 return 0;
988 }
989
990 static int
991 qeth_recover(void *ptr)
992 {
993 struct qeth_card *card;
994 int rc = 0;
995
996 card = (struct qeth_card *) ptr;
997 daemonize("qeth_recover");
998 QETH_DBF_TEXT(trace,2,"recover1");
999 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
1000 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1001 return 0;
1002 QETH_DBF_TEXT(trace,2,"recover2");
1003 PRINT_WARN("Recovery of device %s started ...\n",
1004 CARD_BUS_ID(card));
1005 card->use_hard_stop = 1;
1006 __qeth_set_offline(card->gdev,1);
1007 rc = __qeth_set_online(card->gdev,1);
1008 if (!rc)
1009 PRINT_INFO("Device %s successfully recovered!\n",
1010 CARD_BUS_ID(card));
1011 else
1012 PRINT_INFO("Device %s could not be recovered!\n",
1013 CARD_BUS_ID(card));
1014 /* don't run another scheduled recovery */
1015 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1016 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1017 return 0;
1018 }
1019
1020 void
1021 qeth_schedule_recovery(struct qeth_card *card)
1022 {
1023 QETH_DBF_TEXT(trace,2,"startrec");
1024 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1025 schedule_work(&card->kernel_thread_starter);
1026 }
1027
1028 static int
1029 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1030 {
1031 unsigned long flags;
1032 int rc = 0;
1033
1034 spin_lock_irqsave(&card->thread_mask_lock, flags);
1035 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1036 (u8) card->thread_start_mask,
1037 (u8) card->thread_allowed_mask,
1038 (u8) card->thread_running_mask);
1039 rc = (card->thread_start_mask & thread);
1040 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1041 return rc;
1042 }
1043
1044 static void
1045 qeth_start_kernel_thread(struct qeth_card *card)
1046 {
1047 QETH_DBF_TEXT(trace , 2, "strthrd");
1048
1049 if (card->read.state != CH_STATE_UP &&
1050 card->write.state != CH_STATE_UP)
1051 return;
1052
1053 if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1054 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1055 if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1056 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1057 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1058 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1059 }
1060
1061
1062 static void
1063 qeth_set_intial_options(struct qeth_card *card)
1064 {
1065 card->options.route4.type = NO_ROUTER;
1066 #ifdef CONFIG_QETH_IPV6
1067 card->options.route6.type = NO_ROUTER;
1068 #endif /* QETH_IPV6 */
1069 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1070 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1071 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1072 card->options.fake_broadcast = 0;
1073 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1074 card->options.fake_ll = 0;
1075 if (card->info.type == QETH_CARD_TYPE_OSN)
1076 card->options.layer2 = 1;
1077 else
1078 card->options.layer2 = 0;
1079 }
1080
1081 /**
1082 * initialize channels ,card and all state machines
1083 */
1084 static int
1085 qeth_setup_card(struct qeth_card *card)
1086 {
1087
1088 QETH_DBF_TEXT(setup, 2, "setupcrd");
1089 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1090
1091 card->read.state = CH_STATE_DOWN;
1092 card->write.state = CH_STATE_DOWN;
1093 card->data.state = CH_STATE_DOWN;
1094 card->state = CARD_STATE_DOWN;
1095 card->lan_online = 0;
1096 card->use_hard_stop = 0;
1097 card->dev = NULL;
1098 #ifdef CONFIG_QETH_VLAN
1099 spin_lock_init(&card->vlanlock);
1100 card->vlangrp = NULL;
1101 #endif
1102 spin_lock_init(&card->lock);
1103 spin_lock_init(&card->ip_lock);
1104 spin_lock_init(&card->thread_mask_lock);
1105 card->thread_start_mask = 0;
1106 card->thread_allowed_mask = 0;
1107 card->thread_running_mask = 0;
1108 INIT_WORK(&card->kernel_thread_starter,
1109 (void *)qeth_start_kernel_thread,card);
1110 INIT_LIST_HEAD(&card->ip_list);
1111 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1112 if (!card->ip_tbd_list) {
1113 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1114 return -ENOMEM;
1115 }
1116 INIT_LIST_HEAD(card->ip_tbd_list);
1117 INIT_LIST_HEAD(&card->cmd_waiter_list);
1118 init_waitqueue_head(&card->wait_q);
1119 /* intial options */
1120 qeth_set_intial_options(card);
1121 /* IP address takeover */
1122 INIT_LIST_HEAD(&card->ipato.entries);
1123 card->ipato.enabled = 0;
1124 card->ipato.invert4 = 0;
1125 card->ipato.invert6 = 0;
1126 /* init QDIO stuff */
1127 qeth_init_qdio_info(card);
1128 return 0;
1129 }
1130
1131 static int
1132 is_1920_device (struct qeth_card *card)
1133 {
1134 int single_queue = 0;
1135 struct ccw_device *ccwdev;
1136 struct channelPath_dsc {
1137 u8 flags;
1138 u8 lsn;
1139 u8 desc;
1140 u8 chpid;
1141 u8 swla;
1142 u8 zeroes;
1143 u8 chla;
1144 u8 chpp;
1145 } *chp_dsc;
1146
1147 QETH_DBF_TEXT(setup, 2, "chk_1920");
1148
1149 ccwdev = card->data.ccwdev;
1150 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1151 if (chp_dsc != NULL) {
1152 /* CHPP field bit 6 == 1 -> single queue */
1153 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1154 kfree(chp_dsc);
1155 }
1156 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1157 return single_queue;
1158 }
1159
1160 static int
1161 qeth_determine_card_type(struct qeth_card *card)
1162 {
1163 int i = 0;
1164
1165 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1166
1167 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1168 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1169 while (known_devices[i][4]) {
1170 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1171 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1172 card->info.type = known_devices[i][4];
1173 card->qdio.no_out_queues = known_devices[i][8];
1174 card->info.is_multicast_different = known_devices[i][9];
1175 if (is_1920_device(card)) {
1176 PRINT_INFO("Priority Queueing not able "
1177 "due to hardware limitations!\n");
1178 card->qdio.no_out_queues = 1;
1179 card->qdio.default_out_queue = 0;
1180 }
1181 return 0;
1182 }
1183 i++;
1184 }
1185 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1186 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1187 return -ENOENT;
1188 }
1189
1190 static int
1191 qeth_probe_device(struct ccwgroup_device *gdev)
1192 {
1193 struct qeth_card *card;
1194 struct device *dev;
1195 unsigned long flags;
1196 int rc;
1197
1198 QETH_DBF_TEXT(setup, 2, "probedev");
1199
1200 dev = &gdev->dev;
1201 if (!get_device(dev))
1202 return -ENODEV;
1203
1204 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1205
1206 card = qeth_alloc_card();
1207 if (!card) {
1208 put_device(dev);
1209 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1210 return -ENOMEM;
1211 }
1212 card->read.ccwdev = gdev->cdev[0];
1213 card->write.ccwdev = gdev->cdev[1];
1214 card->data.ccwdev = gdev->cdev[2];
1215 gdev->dev.driver_data = card;
1216 card->gdev = gdev;
1217 gdev->cdev[0]->handler = qeth_irq;
1218 gdev->cdev[1]->handler = qeth_irq;
1219 gdev->cdev[2]->handler = qeth_irq;
1220
1221 if ((rc = qeth_determine_card_type(card))){
1222 PRINT_WARN("%s: not a valid card type\n", __func__);
1223 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1224 put_device(dev);
1225 qeth_free_card(card);
1226 return rc;
1227 }
1228 if ((rc = qeth_setup_card(card))){
1229 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1230 put_device(dev);
1231 qeth_free_card(card);
1232 return rc;
1233 }
1234 rc = qeth_create_device_attributes(dev);
1235 if (rc) {
1236 put_device(dev);
1237 qeth_free_card(card);
1238 return rc;
1239 }
1240 /* insert into our internal list */
1241 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1242 list_add_tail(&card->list, &qeth_card_list.list);
1243 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1244 return rc;
1245 }
1246
1247
1248 static int
1249 qeth_get_unitaddr(struct qeth_card *card)
1250 {
1251 int length;
1252 char *prcd;
1253 int rc;
1254
1255 QETH_DBF_TEXT(setup, 2, "getunit");
1256 rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1257 if (rc) {
1258 PRINT_ERR("read_conf_data for device %s returned %i\n",
1259 CARD_DDEV_ID(card), rc);
1260 return rc;
1261 }
1262 card->info.chpid = prcd[30];
1263 card->info.unit_addr2 = prcd[31];
1264 card->info.cula = prcd[63];
1265 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1266 (prcd[0x11] == _ascebc['M']));
1267 return 0;
1268 }
1269
1270 static void
1271 qeth_init_tokens(struct qeth_card *card)
1272 {
1273 card->token.issuer_rm_w = 0x00010103UL;
1274 card->token.cm_filter_w = 0x00010108UL;
1275 card->token.cm_connection_w = 0x0001010aUL;
1276 card->token.ulp_filter_w = 0x0001010bUL;
1277 card->token.ulp_connection_w = 0x0001010dUL;
1278 }
1279
1280 static inline __u16
1281 raw_devno_from_bus_id(char *id)
1282 {
1283 id += (strlen(id) - 4);
1284 return (__u16) simple_strtoul(id, &id, 16);
1285 }
1286 /**
1287 * setup channel
1288 */
1289 static void
1290 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1291 {
1292 struct qeth_card *card;
1293
1294 QETH_DBF_TEXT(trace, 4, "setupccw");
1295 card = CARD_FROM_CDEV(channel->ccwdev);
1296 if (channel == &card->read)
1297 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1298 else
1299 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1300 channel->ccw.count = len;
1301 channel->ccw.cda = (__u32) __pa(iob);
1302 }
1303
1304 /**
1305 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1306 */
1307 static struct qeth_cmd_buffer *
1308 __qeth_get_buffer(struct qeth_channel *channel)
1309 {
1310 __u8 index;
1311
1312 QETH_DBF_TEXT(trace, 6, "getbuff");
1313 index = channel->io_buf_no;
1314 do {
1315 if (channel->iob[index].state == BUF_STATE_FREE) {
1316 channel->iob[index].state = BUF_STATE_LOCKED;
1317 channel->io_buf_no = (channel->io_buf_no + 1) %
1318 QETH_CMD_BUFFER_NO;
1319 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1320 return channel->iob + index;
1321 }
1322 index = (index + 1) % QETH_CMD_BUFFER_NO;
1323 } while(index != channel->io_buf_no);
1324
1325 return NULL;
1326 }
1327
1328 /**
1329 * release command buffer
1330 */
1331 static void
1332 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1333 {
1334 unsigned long flags;
1335
1336 QETH_DBF_TEXT(trace, 6, "relbuff");
1337 spin_lock_irqsave(&channel->iob_lock, flags);
1338 memset(iob->data, 0, QETH_BUFSIZE);
1339 iob->state = BUF_STATE_FREE;
1340 iob->callback = qeth_send_control_data_cb;
1341 iob->rc = 0;
1342 spin_unlock_irqrestore(&channel->iob_lock, flags);
1343 }
1344
1345 static struct qeth_cmd_buffer *
1346 qeth_get_buffer(struct qeth_channel *channel)
1347 {
1348 struct qeth_cmd_buffer *buffer = NULL;
1349 unsigned long flags;
1350
1351 spin_lock_irqsave(&channel->iob_lock, flags);
1352 buffer = __qeth_get_buffer(channel);
1353 spin_unlock_irqrestore(&channel->iob_lock, flags);
1354 return buffer;
1355 }
1356
1357 static struct qeth_cmd_buffer *
1358 qeth_wait_for_buffer(struct qeth_channel *channel)
1359 {
1360 struct qeth_cmd_buffer *buffer;
1361 wait_event(channel->wait_q,
1362 ((buffer = qeth_get_buffer(channel)) != NULL));
1363 return buffer;
1364 }
1365
1366 static void
1367 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1368 {
1369 int cnt = 0;
1370
1371 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1372 qeth_release_buffer(channel,&channel->iob[cnt]);
1373 channel->buf_no = 0;
1374 channel->io_buf_no = 0;
1375 }
1376
1377 /**
1378 * start IDX for read and write channel
1379 */
1380 static int
1381 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1382 void (*idx_reply_cb)(struct qeth_channel *,
1383 struct qeth_cmd_buffer *))
1384 {
1385 struct qeth_cmd_buffer *iob;
1386 unsigned long flags;
1387 int rc;
1388 struct qeth_card *card;
1389
1390 QETH_DBF_TEXT(setup, 2, "idxanswr");
1391 card = CARD_FROM_CDEV(channel->ccwdev);
1392 iob = qeth_get_buffer(channel);
1393 iob->callback = idx_reply_cb;
1394 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1395 channel->ccw.count = QETH_BUFSIZE;
1396 channel->ccw.cda = (__u32) __pa(iob->data);
1397
1398 wait_event(card->wait_q,
1399 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1400 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1401 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1402 rc = ccw_device_start(channel->ccwdev,
1403 &channel->ccw,(addr_t) iob, 0, 0);
1404 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1405
1406 if (rc) {
1407 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1408 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1409 atomic_set(&channel->irq_pending, 0);
1410 wake_up(&card->wait_q);
1411 return rc;
1412 }
1413 rc = wait_event_interruptible_timeout(card->wait_q,
1414 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1415 if (rc == -ERESTARTSYS)
1416 return rc;
1417 if (channel->state != CH_STATE_UP){
1418 rc = -ETIME;
1419 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1420 qeth_clear_cmd_buffers(channel);
1421 } else
1422 rc = 0;
1423 return rc;
1424 }
1425
1426 static int
1427 qeth_idx_activate_channel(struct qeth_channel *channel,
1428 void (*idx_reply_cb)(struct qeth_channel *,
1429 struct qeth_cmd_buffer *))
1430 {
1431 struct qeth_card *card;
1432 struct qeth_cmd_buffer *iob;
1433 unsigned long flags;
1434 __u16 temp;
1435 int rc;
1436
1437 card = CARD_FROM_CDEV(channel->ccwdev);
1438
1439 QETH_DBF_TEXT(setup, 2, "idxactch");
1440
1441 iob = qeth_get_buffer(channel);
1442 iob->callback = idx_reply_cb;
1443 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1444 channel->ccw.count = IDX_ACTIVATE_SIZE;
1445 channel->ccw.cda = (__u32) __pa(iob->data);
1446 if (channel == &card->write) {
1447 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1448 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1449 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1450 card->seqno.trans_hdr++;
1451 } else {
1452 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1453 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1454 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1455 }
1456 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1457 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1458 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1459 &card->info.func_level,sizeof(__u16));
1460 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1461 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1462 temp = (card->info.cula << 8) + card->info.unit_addr2;
1463 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1464
1465 wait_event(card->wait_q,
1466 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1467 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1468 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1469 rc = ccw_device_start(channel->ccwdev,
1470 &channel->ccw,(addr_t) iob, 0, 0);
1471 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1472
1473 if (rc) {
1474 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1475 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1476 atomic_set(&channel->irq_pending, 0);
1477 wake_up(&card->wait_q);
1478 return rc;
1479 }
1480 rc = wait_event_interruptible_timeout(card->wait_q,
1481 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1482 if (rc == -ERESTARTSYS)
1483 return rc;
1484 if (channel->state != CH_STATE_ACTIVATING) {
1485 PRINT_WARN("qeth: IDX activate timed out!\n");
1486 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1487 qeth_clear_cmd_buffers(channel);
1488 return -ETIME;
1489 }
1490 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1491 }
1492
1493 static int
1494 qeth_peer_func_level(int level)
1495 {
1496 if ((level & 0xff) == 8)
1497 return (level & 0xff) + 0x400;
1498 if (((level >> 8) & 3) == 1)
1499 return (level & 0xff) + 0x200;
1500 return level;
1501 }
1502
1503 static void
1504 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1505 {
1506 struct qeth_card *card;
1507 __u16 temp;
1508
1509 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1510
1511 if (channel->state == CH_STATE_DOWN) {
1512 channel->state = CH_STATE_ACTIVATING;
1513 goto out;
1514 }
1515 card = CARD_FROM_CDEV(channel->ccwdev);
1516
1517 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1518 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1519 "reply\n", CARD_WDEV_ID(card));
1520 goto out;
1521 }
1522 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1523 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1524 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1525 "function level mismatch "
1526 "(sent: 0x%x, received: 0x%x)\n",
1527 CARD_WDEV_ID(card), card->info.func_level, temp);
1528 goto out;
1529 }
1530 channel->state = CH_STATE_UP;
1531 out:
1532 qeth_release_buffer(channel, iob);
1533 }
1534
1535 static int
1536 qeth_check_idx_response(unsigned char *buffer)
1537 {
1538 if (!buffer)
1539 return 0;
1540
1541 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1542 if ((buffer[2] & 0xc0) == 0xc0) {
1543 PRINT_WARN("received an IDX TERMINATE "
1544 "with cause code 0x%02x%s\n",
1545 buffer[4],
1546 ((buffer[4] == 0x22) ?
1547 " -- try another portname" : ""));
1548 QETH_DBF_TEXT(trace, 2, "ckidxres");
1549 QETH_DBF_TEXT(trace, 2, " idxterm");
1550 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1551 return -EIO;
1552 }
1553 return 0;
1554 }
1555
1556 static void
1557 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1558 {
1559 struct qeth_card *card;
1560 __u16 temp;
1561
1562 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1563 if (channel->state == CH_STATE_DOWN) {
1564 channel->state = CH_STATE_ACTIVATING;
1565 goto out;
1566 }
1567
1568 card = CARD_FROM_CDEV(channel->ccwdev);
1569 if (qeth_check_idx_response(iob->data)) {
1570 goto out;
1571 }
1572 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1573 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1574 "reply\n", CARD_RDEV_ID(card));
1575 goto out;
1576 }
1577
1578 /**
1579 * temporary fix for microcode bug
1580 * to revert it,replace OR by AND
1581 */
1582 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1583 (card->info.type == QETH_CARD_TYPE_OSAE) )
1584 card->info.portname_required = 1;
1585
1586 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1587 if (temp != qeth_peer_func_level(card->info.func_level)) {
1588 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1589 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1590 CARD_RDEV_ID(card), card->info.func_level, temp);
1591 goto out;
1592 }
1593 memcpy(&card->token.issuer_rm_r,
1594 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1595 QETH_MPC_TOKEN_LENGTH);
1596 memcpy(&card->info.mcl_level[0],
1597 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1598 channel->state = CH_STATE_UP;
1599 out:
1600 qeth_release_buffer(channel,iob);
1601 }
1602
1603 static int
1604 qeth_issue_next_read(struct qeth_card *card)
1605 {
1606 int rc;
1607 struct qeth_cmd_buffer *iob;
1608
1609 QETH_DBF_TEXT(trace,5,"issnxrd");
1610 if (card->read.state != CH_STATE_UP)
1611 return -EIO;
1612 iob = qeth_get_buffer(&card->read);
1613 if (!iob) {
1614 PRINT_WARN("issue_next_read failed: no iob available!\n");
1615 return -ENOMEM;
1616 }
1617 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1618 wait_event(card->wait_q,
1619 atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1620 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1621 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1622 (addr_t) iob, 0, 0);
1623 if (rc) {
1624 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1625 atomic_set(&card->read.irq_pending, 0);
1626 qeth_schedule_recovery(card);
1627 wake_up(&card->wait_q);
1628 }
1629 return rc;
1630 }
1631
1632 static struct qeth_reply *
1633 qeth_alloc_reply(struct qeth_card *card)
1634 {
1635 struct qeth_reply *reply;
1636
1637 reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1638 if (reply){
1639 memset(reply, 0, sizeof(struct qeth_reply));
1640 atomic_set(&reply->refcnt, 1);
1641 reply->card = card;
1642 };
1643 return reply;
1644 }
1645
1646 static void
1647 qeth_get_reply(struct qeth_reply *reply)
1648 {
1649 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1650 atomic_inc(&reply->refcnt);
1651 }
1652
1653 static void
1654 qeth_put_reply(struct qeth_reply *reply)
1655 {
1656 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1657 if (atomic_dec_and_test(&reply->refcnt))
1658 kfree(reply);
1659 }
1660
1661 static void
1662 qeth_cmd_timeout(unsigned long data)
1663 {
1664 struct qeth_reply *reply, *list_reply, *r;
1665 unsigned long flags;
1666
1667 reply = (struct qeth_reply *) data;
1668 spin_lock_irqsave(&reply->card->lock, flags);
1669 list_for_each_entry_safe(list_reply, r,
1670 &reply->card->cmd_waiter_list, list) {
1671 if (reply == list_reply){
1672 qeth_get_reply(reply);
1673 list_del_init(&reply->list);
1674 spin_unlock_irqrestore(&reply->card->lock, flags);
1675 reply->rc = -ETIME;
1676 reply->received = 1;
1677 wake_up(&reply->wait_q);
1678 qeth_put_reply(reply);
1679 return;
1680 }
1681 }
1682 spin_unlock_irqrestore(&reply->card->lock, flags);
1683 }
1684
1685 static struct qeth_ipa_cmd *
1686 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1687 {
1688 struct qeth_ipa_cmd *cmd = NULL;
1689
1690 QETH_DBF_TEXT(trace,5,"chkipad");
1691 if (IS_IPA(iob->data)){
1692 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1693 if (IS_IPA_REPLY(cmd))
1694 return cmd;
1695 else {
1696 switch (cmd->hdr.command) {
1697 case IPA_CMD_STOPLAN:
1698 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1699 "there is a network problem or "
1700 "someone pulled the cable or "
1701 "disabled the port.\n",
1702 QETH_CARD_IFNAME(card),
1703 card->info.chpid);
1704 card->lan_online = 0;
1705 netif_carrier_off(card->dev);
1706 return NULL;
1707 case IPA_CMD_STARTLAN:
1708 PRINT_INFO("Link reestablished on %s "
1709 "(CHPID 0x%X). Scheduling "
1710 "IP address reset.\n",
1711 QETH_CARD_IFNAME(card),
1712 card->info.chpid);
1713 qeth_schedule_recovery(card);
1714 return NULL;
1715 case IPA_CMD_MODCCID:
1716 return cmd;
1717 case IPA_CMD_REGISTER_LOCAL_ADDR:
1718 QETH_DBF_TEXT(trace,3, "irla");
1719 break;
1720 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1721 QETH_DBF_TEXT(trace,3, "urla");
1722 break;
1723 default:
1724 PRINT_WARN("Received data is IPA "
1725 "but not a reply!\n");
1726 break;
1727 }
1728 }
1729 }
1730 return cmd;
1731 }
1732
1733 /**
1734 * wake all waiting ipa commands
1735 */
1736 static void
1737 qeth_clear_ipacmd_list(struct qeth_card *card)
1738 {
1739 struct qeth_reply *reply, *r;
1740 unsigned long flags;
1741
1742 QETH_DBF_TEXT(trace, 4, "clipalst");
1743
1744 spin_lock_irqsave(&card->lock, flags);
1745 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1746 qeth_get_reply(reply);
1747 reply->rc = -EIO;
1748 reply->received = 1;
1749 list_del_init(&reply->list);
1750 wake_up(&reply->wait_q);
1751 qeth_put_reply(reply);
1752 }
1753 spin_unlock_irqrestore(&card->lock, flags);
1754 }
1755
1756 static void
1757 qeth_send_control_data_cb(struct qeth_channel *channel,
1758 struct qeth_cmd_buffer *iob)
1759 {
1760 struct qeth_card *card;
1761 struct qeth_reply *reply, *r;
1762 struct qeth_ipa_cmd *cmd;
1763 unsigned long flags;
1764 int keep_reply;
1765
1766 QETH_DBF_TEXT(trace,4,"sndctlcb");
1767
1768 card = CARD_FROM_CDEV(channel->ccwdev);
1769 if (qeth_check_idx_response(iob->data)) {
1770 qeth_clear_ipacmd_list(card);
1771 qeth_schedule_recovery(card);
1772 goto out;
1773 }
1774
1775 cmd = qeth_check_ipa_data(card, iob);
1776 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1777 goto out;
1778 /*in case of OSN : check if cmd is set */
1779 if (card->info.type == QETH_CARD_TYPE_OSN &&
1780 cmd &&
1781 cmd->hdr.command != IPA_CMD_STARTLAN &&
1782 card->osn_info.assist_cb != NULL) {
1783 card->osn_info.assist_cb(card->dev, cmd);
1784 goto out;
1785 }
1786
1787 spin_lock_irqsave(&card->lock, flags);
1788 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1789 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1790 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1791 qeth_get_reply(reply);
1792 list_del_init(&reply->list);
1793 spin_unlock_irqrestore(&card->lock, flags);
1794 keep_reply = 0;
1795 if (reply->callback != NULL) {
1796 if (cmd) {
1797 reply->offset = (__u16)((char*)cmd -
1798 (char *)iob->data);
1799 keep_reply = reply->callback(card,
1800 reply,
1801 (unsigned long)cmd);
1802 } else
1803 keep_reply = reply->callback(card,
1804 reply,
1805 (unsigned long)iob);
1806 }
1807 if (cmd)
1808 reply->rc = (u16) cmd->hdr.return_code;
1809 else if (iob->rc)
1810 reply->rc = iob->rc;
1811 if (keep_reply) {
1812 spin_lock_irqsave(&card->lock, flags);
1813 list_add_tail(&reply->list,
1814 &card->cmd_waiter_list);
1815 spin_unlock_irqrestore(&card->lock, flags);
1816 } else {
1817 reply->received = 1;
1818 wake_up(&reply->wait_q);
1819 }
1820 qeth_put_reply(reply);
1821 goto out;
1822 }
1823 }
1824 spin_unlock_irqrestore(&card->lock, flags);
1825 out:
1826 memcpy(&card->seqno.pdu_hdr_ack,
1827 QETH_PDU_HEADER_SEQ_NO(iob->data),
1828 QETH_SEQ_NO_LENGTH);
1829 qeth_release_buffer(channel,iob);
1830 }
1831
1832 static inline void
1833 qeth_prepare_control_data(struct qeth_card *card, int len,
1834 struct qeth_cmd_buffer *iob)
1835 {
1836 qeth_setup_ccw(&card->write,iob->data,len);
1837 iob->callback = qeth_release_buffer;
1838
1839 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1840 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1841 card->seqno.trans_hdr++;
1842 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1843 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1844 card->seqno.pdu_hdr++;
1845 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1846 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1847 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1848 }
1849
1850 static int
1851 qeth_send_control_data(struct qeth_card *card, int len,
1852 struct qeth_cmd_buffer *iob,
1853 int (*reply_cb)
1854 (struct qeth_card *, struct qeth_reply*, unsigned long),
1855 void *reply_param)
1856
1857 {
1858 int rc;
1859 unsigned long flags;
1860 struct qeth_reply *reply = NULL;
1861 struct timer_list timer;
1862
1863 QETH_DBF_TEXT(trace, 2, "sendctl");
1864
1865 reply = qeth_alloc_reply(card);
1866 if (!reply) {
1867 PRINT_WARN("Could no alloc qeth_reply!\n");
1868 return -ENOMEM;
1869 }
1870 reply->callback = reply_cb;
1871 reply->param = reply_param;
1872 if (card->state == CARD_STATE_DOWN)
1873 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1874 else
1875 reply->seqno = card->seqno.ipa++;
1876 init_timer(&timer);
1877 timer.function = qeth_cmd_timeout;
1878 timer.data = (unsigned long) reply;
1879 init_waitqueue_head(&reply->wait_q);
1880 spin_lock_irqsave(&card->lock, flags);
1881 list_add_tail(&reply->list, &card->cmd_waiter_list);
1882 spin_unlock_irqrestore(&card->lock, flags);
1883 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1884 wait_event(card->wait_q,
1885 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1886 qeth_prepare_control_data(card, len, iob);
1887 if (IS_IPA(iob->data))
1888 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1889 else
1890 timer.expires = jiffies + QETH_TIMEOUT;
1891 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1892 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1893 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1894 (addr_t) iob, 0, 0);
1895 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1896 if (rc){
1897 PRINT_WARN("qeth_send_control_data: "
1898 "ccw_device_start rc = %i\n", rc);
1899 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1900 spin_lock_irqsave(&card->lock, flags);
1901 list_del_init(&reply->list);
1902 qeth_put_reply(reply);
1903 spin_unlock_irqrestore(&card->lock, flags);
1904 qeth_release_buffer(iob->channel, iob);
1905 atomic_set(&card->write.irq_pending, 0);
1906 wake_up(&card->wait_q);
1907 return rc;
1908 }
1909 add_timer(&timer);
1910 wait_event(reply->wait_q, reply->received);
1911 del_timer_sync(&timer);
1912 rc = reply->rc;
1913 qeth_put_reply(reply);
1914 return rc;
1915 }
1916
1917 static int
1918 qeth_osn_send_control_data(struct qeth_card *card, int len,
1919 struct qeth_cmd_buffer *iob)
1920 {
1921 unsigned long flags;
1922 int rc = 0;
1923
1924 QETH_DBF_TEXT(trace, 5, "osndctrd");
1925
1926 wait_event(card->wait_q,
1927 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1928 qeth_prepare_control_data(card, len, iob);
1929 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1930 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1931 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1932 (addr_t) iob, 0, 0);
1933 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1934 if (rc){
1935 PRINT_WARN("qeth_osn_send_control_data: "
1936 "ccw_device_start rc = %i\n", rc);
1937 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1938 qeth_release_buffer(iob->channel, iob);
1939 atomic_set(&card->write.irq_pending, 0);
1940 wake_up(&card->wait_q);
1941 }
1942 return rc;
1943 }
1944
1945 static inline void
1946 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1947 char prot_type)
1948 {
1949 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1950 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1951 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1952 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1953 }
1954
1955 static int
1956 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1957 int data_len)
1958 {
1959 u16 s1, s2;
1960
1961 QETH_DBF_TEXT(trace,4,"osndipa");
1962
1963 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1964 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1965 s2 = (u16)data_len;
1966 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1967 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1968 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1969 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1970 return qeth_osn_send_control_data(card, s1, iob);
1971 }
1972
1973 static int
1974 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1975 int (*reply_cb)
1976 (struct qeth_card *,struct qeth_reply*, unsigned long),
1977 void *reply_param)
1978 {
1979 int rc;
1980 char prot_type;
1981
1982 QETH_DBF_TEXT(trace,4,"sendipa");
1983
1984 if (card->options.layer2)
1985 if (card->info.type == QETH_CARD_TYPE_OSN)
1986 prot_type = QETH_PROT_OSN2;
1987 else
1988 prot_type = QETH_PROT_LAYER2;
1989 else
1990 prot_type = QETH_PROT_TCPIP;
1991 qeth_prepare_ipa_cmd(card,iob,prot_type);
1992 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1993 reply_cb, reply_param);
1994 return rc;
1995 }
1996
1997
1998 static int
1999 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2000 unsigned long data)
2001 {
2002 struct qeth_cmd_buffer *iob;
2003
2004 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2005
2006 iob = (struct qeth_cmd_buffer *) data;
2007 memcpy(&card->token.cm_filter_r,
2008 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2009 QETH_MPC_TOKEN_LENGTH);
2010 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2011 return 0;
2012 }
2013
2014 static int
2015 qeth_cm_enable(struct qeth_card *card)
2016 {
2017 int rc;
2018 struct qeth_cmd_buffer *iob;
2019
2020 QETH_DBF_TEXT(setup,2,"cmenable");
2021
2022 iob = qeth_wait_for_buffer(&card->write);
2023 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2024 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2025 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2026 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2027 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2028
2029 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2030 qeth_cm_enable_cb, NULL);
2031 return rc;
2032 }
2033
2034 static int
2035 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2036 unsigned long data)
2037 {
2038
2039 struct qeth_cmd_buffer *iob;
2040
2041 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2042
2043 iob = (struct qeth_cmd_buffer *) data;
2044 memcpy(&card->token.cm_connection_r,
2045 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2046 QETH_MPC_TOKEN_LENGTH);
2047 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2048 return 0;
2049 }
2050
2051 static int
2052 qeth_cm_setup(struct qeth_card *card)
2053 {
2054 int rc;
2055 struct qeth_cmd_buffer *iob;
2056
2057 QETH_DBF_TEXT(setup,2,"cmsetup");
2058
2059 iob = qeth_wait_for_buffer(&card->write);
2060 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2061 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2062 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2063 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2064 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2065 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2066 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2067 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2068 qeth_cm_setup_cb, NULL);
2069 return rc;
2070
2071 }
2072
2073 static int
2074 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2075 unsigned long data)
2076 {
2077
2078 __u16 mtu, framesize;
2079 __u16 len;
2080 __u8 link_type;
2081 struct qeth_cmd_buffer *iob;
2082
2083 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2084
2085 iob = (struct qeth_cmd_buffer *) data;
2086 memcpy(&card->token.ulp_filter_r,
2087 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2088 QETH_MPC_TOKEN_LENGTH);
2089 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2090 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2091 mtu = qeth_get_mtu_outof_framesize(framesize);
2092 if (!mtu) {
2093 iob->rc = -EINVAL;
2094 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2095 return 0;
2096 }
2097 card->info.max_mtu = mtu;
2098 card->info.initial_mtu = mtu;
2099 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2100 } else {
2101 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2102 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2103 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2104 }
2105
2106 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2107 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2108 memcpy(&link_type,
2109 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2110 card->info.link_type = link_type;
2111 } else
2112 card->info.link_type = 0;
2113 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2114 return 0;
2115 }
2116
2117 static int
2118 qeth_ulp_enable(struct qeth_card *card)
2119 {
2120 int rc;
2121 char prot_type;
2122 struct qeth_cmd_buffer *iob;
2123
2124 /*FIXME: trace view callbacks*/
2125 QETH_DBF_TEXT(setup,2,"ulpenabl");
2126
2127 iob = qeth_wait_for_buffer(&card->write);
2128 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2129
2130 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2131 (__u8) card->info.portno;
2132 if (card->options.layer2)
2133 if (card->info.type == QETH_CARD_TYPE_OSN)
2134 prot_type = QETH_PROT_OSN2;
2135 else
2136 prot_type = QETH_PROT_LAYER2;
2137 else
2138 prot_type = QETH_PROT_TCPIP;
2139
2140 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2141 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2142 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2143 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2144 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2145 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2146 card->info.portname, 9);
2147 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2148 qeth_ulp_enable_cb, NULL);
2149 return rc;
2150
2151 }
2152
2153 static inline __u16
2154 __raw_devno_from_bus_id(char *id)
2155 {
2156 id += (strlen(id) - 4);
2157 return (__u16) simple_strtoul(id, &id, 16);
2158 }
2159
2160 static int
2161 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2162 unsigned long data)
2163 {
2164 struct qeth_cmd_buffer *iob;
2165
2166 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2167
2168 iob = (struct qeth_cmd_buffer *) data;
2169 memcpy(&card->token.ulp_connection_r,
2170 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2171 QETH_MPC_TOKEN_LENGTH);
2172 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2173 return 0;
2174 }
2175
2176 static int
2177 qeth_ulp_setup(struct qeth_card *card)
2178 {
2179 int rc;
2180 __u16 temp;
2181 struct qeth_cmd_buffer *iob;
2182
2183 QETH_DBF_TEXT(setup,2,"ulpsetup");
2184
2185 iob = qeth_wait_for_buffer(&card->write);
2186 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2187
2188 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2189 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2190 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2191 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2192 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2193 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2194
2195 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2196 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2197 temp = (card->info.cula << 8) + card->info.unit_addr2;
2198 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2199 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2200 qeth_ulp_setup_cb, NULL);
2201 return rc;
2202 }
2203
2204 static inline int
2205 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2206 unsigned int siga_error, const char *dbftext)
2207 {
2208 if (qdio_error || siga_error) {
2209 QETH_DBF_TEXT(trace, 2, dbftext);
2210 QETH_DBF_TEXT(qerr, 2, dbftext);
2211 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2212 buf->element[15].flags & 0xff);
2213 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2214 buf->element[14].flags & 0xff);
2215 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2216 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2217 return 1;
2218 }
2219 return 0;
2220 }
2221
2222 static inline struct sk_buff *
2223 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2224 {
2225 struct sk_buff* skb;
2226 int add_len;
2227
2228 add_len = 0;
2229 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2230 add_len = sizeof(struct qeth_hdr);
2231 #ifdef CONFIG_QETH_VLAN
2232 else
2233 add_len = VLAN_HLEN;
2234 #endif
2235 skb = dev_alloc_skb(length + add_len);
2236 if (skb && add_len)
2237 skb_reserve(skb, add_len);
2238 return skb;
2239 }
2240
2241 static inline struct sk_buff *
2242 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2243 struct qdio_buffer_element **__element, int *__offset,
2244 struct qeth_hdr **hdr)
2245 {
2246 struct qdio_buffer_element *element = *__element;
2247 int offset = *__offset;
2248 struct sk_buff *skb = NULL;
2249 int skb_len;
2250 void *data_ptr;
2251 int data_len;
2252
2253 QETH_DBF_TEXT(trace,6,"nextskb");
2254 /* qeth_hdr must not cross element boundaries */
2255 if (element->length < offset + sizeof(struct qeth_hdr)){
2256 if (qeth_is_last_sbale(element))
2257 return NULL;
2258 element++;
2259 offset = 0;
2260 if (element->length < sizeof(struct qeth_hdr))
2261 return NULL;
2262 }
2263 *hdr = element->addr + offset;
2264
2265 offset += sizeof(struct qeth_hdr);
2266 if (card->options.layer2)
2267 if (card->info.type == QETH_CARD_TYPE_OSN)
2268 skb_len = (*hdr)->hdr.osn.pdu_length;
2269 else
2270 skb_len = (*hdr)->hdr.l2.pkt_length;
2271 else
2272 skb_len = (*hdr)->hdr.l3.length;
2273
2274 if (!skb_len)
2275 return NULL;
2276 if (card->options.fake_ll){
2277 if(card->dev->type == ARPHRD_IEEE802_TR){
2278 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2279 goto no_mem;
2280 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2281 } else {
2282 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2283 goto no_mem;
2284 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2285 }
2286 } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2287 goto no_mem;
2288 data_ptr = element->addr + offset;
2289 while (skb_len) {
2290 data_len = min(skb_len, (int)(element->length - offset));
2291 if (data_len)
2292 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2293 skb_len -= data_len;
2294 if (skb_len){
2295 if (qeth_is_last_sbale(element)){
2296 QETH_DBF_TEXT(trace,4,"unexeob");
2297 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2298 QETH_DBF_TEXT(qerr,2,"unexeob");
2299 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2300 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2301 dev_kfree_skb_any(skb);
2302 card->stats.rx_errors++;
2303 return NULL;
2304 }
2305 element++;
2306 offset = 0;
2307 data_ptr = element->addr;
2308 } else {
2309 offset += data_len;
2310 }
2311 }
2312 *__element = element;
2313 *__offset = offset;
2314 return skb;
2315 no_mem:
2316 if (net_ratelimit()){
2317 PRINT_WARN("No memory for packet received on %s.\n",
2318 QETH_CARD_IFNAME(card));
2319 QETH_DBF_TEXT(trace,2,"noskbmem");
2320 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2321 }
2322 card->stats.rx_dropped++;
2323 return NULL;
2324 }
2325
2326 static inline __be16
2327 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2328 {
2329 struct qeth_card *card;
2330 struct ethhdr *eth;
2331
2332 QETH_DBF_TEXT(trace,6,"typtrans");
2333
2334 card = (struct qeth_card *)dev->priv;
2335 #ifdef CONFIG_TR
2336 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2337 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2338 return tr_type_trans(skb,dev);
2339 #endif /* CONFIG_TR */
2340 skb->mac.raw = skb->data;
2341 skb_pull(skb, ETH_HLEN );
2342 eth = eth_hdr(skb);
2343
2344 if (*eth->h_dest & 1) {
2345 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2346 skb->pkt_type = PACKET_BROADCAST;
2347 else
2348 skb->pkt_type = PACKET_MULTICAST;
2349 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2350 skb->pkt_type = PACKET_OTHERHOST;
2351
2352 if (ntohs(eth->h_proto) >= 1536)
2353 return eth->h_proto;
2354 if (*(unsigned short *) (skb->data) == 0xFFFF)
2355 return htons(ETH_P_802_3);
2356 return htons(ETH_P_802_2);
2357 }
2358
2359 static inline void
2360 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2361 struct qeth_hdr *hdr)
2362 {
2363 struct trh_hdr *fake_hdr;
2364 struct trllc *fake_llc;
2365 struct iphdr *ip_hdr;
2366
2367 QETH_DBF_TEXT(trace,5,"skbfktr");
2368 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2369 /* this is a fake ethernet header */
2370 fake_hdr = (struct trh_hdr *) skb->mac.raw;
2371
2372 /* the destination MAC address */
2373 switch (skb->pkt_type){
2374 case PACKET_MULTICAST:
2375 switch (skb->protocol){
2376 #ifdef CONFIG_QETH_IPV6
2377 case __constant_htons(ETH_P_IPV6):
2378 ndisc_mc_map((struct in6_addr *)
2379 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2380 fake_hdr->daddr, card->dev, 0);
2381 break;
2382 #endif /* CONFIG_QETH_IPV6 */
2383 case __constant_htons(ETH_P_IP):
2384 ip_hdr = (struct iphdr *)skb->data;
2385 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2386 break;
2387 default:
2388 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2389 }
2390 break;
2391 case PACKET_BROADCAST:
2392 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2393 break;
2394 default:
2395 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2396 }
2397 /* the source MAC address */
2398 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2399 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2400 else
2401 memset(fake_hdr->saddr, 0, TR_ALEN);
2402 fake_hdr->rcf=0;
2403 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2404 fake_llc->dsap = EXTENDED_SAP;
2405 fake_llc->ssap = EXTENDED_SAP;
2406 fake_llc->llc = UI_CMD;
2407 fake_llc->protid[0] = 0;
2408 fake_llc->protid[1] = 0;
2409 fake_llc->protid[2] = 0;
2410 fake_llc->ethertype = ETH_P_IP;
2411 }
2412
2413 static inline void
2414 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2415 struct qeth_hdr *hdr)
2416 {
2417 struct ethhdr *fake_hdr;
2418 struct iphdr *ip_hdr;
2419
2420 QETH_DBF_TEXT(trace,5,"skbfketh");
2421 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2422 /* this is a fake ethernet header */
2423 fake_hdr = (struct ethhdr *) skb->mac.raw;
2424
2425 /* the destination MAC address */
2426 switch (skb->pkt_type){
2427 case PACKET_MULTICAST:
2428 switch (skb->protocol){
2429 #ifdef CONFIG_QETH_IPV6
2430 case __constant_htons(ETH_P_IPV6):
2431 ndisc_mc_map((struct in6_addr *)
2432 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2433 fake_hdr->h_dest, card->dev, 0);
2434 break;
2435 #endif /* CONFIG_QETH_IPV6 */
2436 case __constant_htons(ETH_P_IP):
2437 ip_hdr = (struct iphdr *)skb->data;
2438 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2439 break;
2440 default:
2441 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2442 }
2443 break;
2444 case PACKET_BROADCAST:
2445 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2446 break;
2447 default:
2448 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2449 }
2450 /* the source MAC address */
2451 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2452 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2453 else
2454 memset(fake_hdr->h_source, 0, ETH_ALEN);
2455 /* the protocol */
2456 fake_hdr->h_proto = skb->protocol;
2457 }
2458
2459 static inline void
2460 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2461 struct qeth_hdr *hdr)
2462 {
2463 if (card->dev->type == ARPHRD_IEEE802_TR)
2464 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2465 else
2466 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2467 }
2468
2469 static inline void
2470 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2471 struct qeth_hdr *hdr)
2472 {
2473 #ifdef CONFIG_QETH_VLAN
2474 u16 *vlan_tag;
2475
2476 if (hdr->hdr.l3.ext_flags &
2477 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2478 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2479 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2480 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2481 *(vlan_tag + 1) = skb->protocol;
2482 skb->protocol = __constant_htons(ETH_P_8021Q);
2483 }
2484 #endif /* CONFIG_QETH_VLAN */
2485 }
2486
2487 static inline __u16
2488 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2489 struct qeth_hdr *hdr)
2490 {
2491 unsigned short vlan_id = 0;
2492 #ifdef CONFIG_QETH_VLAN
2493 struct vlan_hdr *vhdr;
2494 #endif
2495
2496 skb->pkt_type = PACKET_HOST;
2497 skb->protocol = qeth_type_trans(skb, skb->dev);
2498 if (card->options.checksum_type == NO_CHECKSUMMING)
2499 skb->ip_summed = CHECKSUM_UNNECESSARY;
2500 else
2501 skb->ip_summed = CHECKSUM_NONE;
2502 #ifdef CONFIG_QETH_VLAN
2503 if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2504 vhdr = (struct vlan_hdr *) skb->data;
2505 skb->protocol =
2506 __constant_htons(vhdr->h_vlan_encapsulated_proto);
2507 vlan_id = hdr->hdr.l2.vlan_id;
2508 skb_pull(skb, VLAN_HLEN);
2509 }
2510 #endif
2511 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2512 return vlan_id;
2513 }
2514
2515 static inline void
2516 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2517 struct qeth_hdr *hdr)
2518 {
2519 #ifdef CONFIG_QETH_IPV6
2520 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2521 skb->pkt_type = PACKET_HOST;
2522 skb->protocol = qeth_type_trans(skb, card->dev);
2523 return;
2524 }
2525 #endif /* CONFIG_QETH_IPV6 */
2526 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2527 ETH_P_IP);
2528 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2529 case QETH_CAST_UNICAST:
2530 skb->pkt_type = PACKET_HOST;
2531 break;
2532 case QETH_CAST_MULTICAST:
2533 skb->pkt_type = PACKET_MULTICAST;
2534 card->stats.multicast++;
2535 break;
2536 case QETH_CAST_BROADCAST:
2537 skb->pkt_type = PACKET_BROADCAST;
2538 card->stats.multicast++;
2539 break;
2540 case QETH_CAST_ANYCAST:
2541 case QETH_CAST_NOCAST:
2542 default:
2543 skb->pkt_type = PACKET_HOST;
2544 }
2545 qeth_rebuild_skb_vlan(card, skb, hdr);
2546 if (card->options.fake_ll)
2547 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2548 else
2549 skb->mac.raw = skb->data;
2550 skb->ip_summed = card->options.checksum_type;
2551 if (card->options.checksum_type == HW_CHECKSUMMING){
2552 if ( (hdr->hdr.l3.ext_flags &
2553 (QETH_HDR_EXT_CSUM_HDR_REQ |
2554 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2555 (QETH_HDR_EXT_CSUM_HDR_REQ |
2556 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2557 skb->ip_summed = CHECKSUM_UNNECESSARY;
2558 else
2559 skb->ip_summed = SW_CHECKSUMMING;
2560 }
2561 }
2562
2563 static inline void
2564 qeth_process_inbound_buffer(struct qeth_card *card,
2565 struct qeth_qdio_buffer *buf, int index)
2566 {
2567 struct qdio_buffer_element *element;
2568 struct sk_buff *skb;
2569 struct qeth_hdr *hdr;
2570 int offset;
2571 int rxrc;
2572 __u16 vlan_tag = 0;
2573
2574 /* get first element of current buffer */
2575 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2576 offset = 0;
2577 #ifdef CONFIG_QETH_PERF_STATS
2578 card->perf_stats.bufs_rec++;
2579 #endif
2580 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2581 &offset, &hdr))) {
2582 skb->dev = card->dev;
2583 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2584 vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2585 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2586 qeth_rebuild_skb(card, skb, hdr);
2587 else { /*in case of OSN*/
2588 skb_push(skb, sizeof(struct qeth_hdr));
2589 memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2590 }
2591 /* is device UP ? */
2592 if (!(card->dev->flags & IFF_UP)){
2593 dev_kfree_skb_any(skb);
2594 continue;
2595 }
2596 #ifdef CONFIG_QETH_VLAN
2597 if (vlan_tag)
2598 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2599 else
2600 #endif
2601 if (card->info.type == QETH_CARD_TYPE_OSN)
2602 rxrc = card->osn_info.data_cb(skb);
2603 else
2604 rxrc = netif_rx(skb);
2605 card->dev->last_rx = jiffies;
2606 card->stats.rx_packets++;
2607 card->stats.rx_bytes += skb->len;
2608 }
2609 }
2610
2611 static inline struct qeth_buffer_pool_entry *
2612 qeth_get_buffer_pool_entry(struct qeth_card *card)
2613 {
2614 struct qeth_buffer_pool_entry *entry;
2615
2616 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2617 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2618 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2619 struct qeth_buffer_pool_entry, list);
2620 list_del_init(&entry->list);
2621 return entry;
2622 }
2623 return NULL;
2624 }
2625
2626 static inline void
2627 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2628 {
2629 struct qeth_buffer_pool_entry *pool_entry;
2630 int i;
2631
2632 pool_entry = qeth_get_buffer_pool_entry(card);
2633 /*
2634 * since the buffer is accessed only from the input_tasklet
2635 * there shouldn't be a need to synchronize; also, since we use
2636 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2637 * buffers
2638 */
2639 BUG_ON(!pool_entry);
2640
2641 buf->pool_entry = pool_entry;
2642 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2643 buf->buffer->element[i].length = PAGE_SIZE;
2644 buf->buffer->element[i].addr = pool_entry->elements[i];
2645 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2646 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2647 else
2648 buf->buffer->element[i].flags = 0;
2649 }
2650 buf->state = QETH_QDIO_BUF_EMPTY;
2651 }
2652
2653 static inline void
2654 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2655 struct qeth_qdio_out_buffer *buf)
2656 {
2657 int i;
2658 struct sk_buff *skb;
2659
2660 /* is PCI flag set on buffer? */
2661 if (buf->buffer->element[0].flags & 0x40)
2662 atomic_dec(&queue->set_pci_flags_count);
2663
2664 while ((skb = skb_dequeue(&buf->skb_list))){
2665 atomic_dec(&skb->users);
2666 dev_kfree_skb_any(skb);
2667 }
2668 qeth_eddp_buf_release_contexts(buf);
2669 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2670 buf->buffer->element[i].length = 0;
2671 buf->buffer->element[i].addr = NULL;
2672 buf->buffer->element[i].flags = 0;
2673 }
2674 buf->next_element_to_fill = 0;
2675 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2676 }
2677
2678 static inline void
2679 qeth_queue_input_buffer(struct qeth_card *card, int index)
2680 {
2681 struct qeth_qdio_q *queue = card->qdio.in_q;
2682 int count;
2683 int i;
2684 int rc;
2685
2686 QETH_DBF_TEXT(trace,6,"queinbuf");
2687 count = (index < queue->next_buf_to_init)?
2688 card->qdio.in_buf_pool.buf_count -
2689 (queue->next_buf_to_init - index) :
2690 card->qdio.in_buf_pool.buf_count -
2691 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2692 /* only requeue at a certain threshold to avoid SIGAs */
2693 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2694 for (i = queue->next_buf_to_init;
2695 i < queue->next_buf_to_init + count; ++i)
2696 qeth_init_input_buffer(card,
2697 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2698 /*
2699 * according to old code it should be avoided to requeue all
2700 * 128 buffers in order to benefit from PCI avoidance.
2701 * this function keeps at least one buffer (the buffer at
2702 * 'index') un-requeued -> this buffer is the first buffer that
2703 * will be requeued the next time
2704 */
2705 #ifdef CONFIG_QETH_PERF_STATS
2706 card->perf_stats.inbound_do_qdio_cnt++;
2707 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2708 #endif
2709 rc = do_QDIO(CARD_DDEV(card),
2710 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2711 0, queue->next_buf_to_init, count, NULL);
2712 #ifdef CONFIG_QETH_PERF_STATS
2713 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2714 card->perf_stats.inbound_do_qdio_start_time;
2715 #endif
2716 if (rc){
2717 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2718 "return %i (device %s).\n",
2719 rc, CARD_DDEV_ID(card));
2720 QETH_DBF_TEXT(trace,2,"qinberr");
2721 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2722 }
2723 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2724 QDIO_MAX_BUFFERS_PER_Q;
2725 }
2726 }
2727
2728 static inline void
2729 qeth_put_buffer_pool_entry(struct qeth_card *card,
2730 struct qeth_buffer_pool_entry *entry)
2731 {
2732 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2733 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2734 }
2735
2736 static void
2737 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2738 unsigned int qdio_err, unsigned int siga_err,
2739 unsigned int queue, int first_element, int count,
2740 unsigned long card_ptr)
2741 {
2742 struct net_device *net_dev;
2743 struct qeth_card *card;
2744 struct qeth_qdio_buffer *buffer;
2745 int index;
2746 int i;
2747
2748 QETH_DBF_TEXT(trace, 6, "qdinput");
2749 card = (struct qeth_card *) card_ptr;
2750 net_dev = card->dev;
2751 #ifdef CONFIG_QETH_PERF_STATS
2752 card->perf_stats.inbound_cnt++;
2753 card->perf_stats.inbound_start_time = qeth_get_micros();
2754 #endif
2755 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2756 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2757 QETH_DBF_TEXT(trace, 1,"qdinchk");
2758 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2759 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2760 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2761 qeth_schedule_recovery(card);
2762 return;
2763 }
2764 }
2765 for (i = first_element; i < (first_element + count); ++i) {
2766 index = i % QDIO_MAX_BUFFERS_PER_Q;
2767 buffer = &card->qdio.in_q->bufs[index];
2768 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2769 qeth_check_qdio_errors(buffer->buffer,
2770 qdio_err, siga_err,"qinerr")))
2771 qeth_process_inbound_buffer(card, buffer, index);
2772 /* clear buffer and give back to hardware */
2773 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2774 qeth_queue_input_buffer(card, index);
2775 }
2776 #ifdef CONFIG_QETH_PERF_STATS
2777 card->perf_stats.inbound_time += qeth_get_micros() -
2778 card->perf_stats.inbound_start_time;
2779 #endif
2780 }
2781
2782 static inline int
2783 qeth_handle_send_error(struct qeth_card *card,
2784 struct qeth_qdio_out_buffer *buffer,
2785 unsigned int qdio_err, unsigned int siga_err)
2786 {
2787 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2788 int cc = siga_err & 3;
2789
2790 QETH_DBF_TEXT(trace, 6, "hdsnderr");
2791 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2792 switch (cc) {
2793 case 0:
2794 if (qdio_err){
2795 QETH_DBF_TEXT(trace, 1,"lnkfail");
2796 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2797 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2798 (u16)qdio_err, (u8)sbalf15);
2799 return QETH_SEND_ERROR_LINK_FAILURE;
2800 }
2801 return QETH_SEND_ERROR_NONE;
2802 case 2:
2803 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2804 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2805 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2806 return QETH_SEND_ERROR_KICK_IT;
2807 }
2808 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2809 return QETH_SEND_ERROR_RETRY;
2810 return QETH_SEND_ERROR_LINK_FAILURE;
2811 /* look at qdio_error and sbalf 15 */
2812 case 1:
2813 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2814 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2815 return QETH_SEND_ERROR_LINK_FAILURE;
2816 case 3:
2817 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2818 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2819 return QETH_SEND_ERROR_KICK_IT;
2820 }
2821 return QETH_SEND_ERROR_LINK_FAILURE;
2822 }
2823
2824 void
2825 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2826 int index, int count)
2827 {
2828 struct qeth_qdio_out_buffer *buf;
2829 int rc;
2830 int i;
2831
2832 QETH_DBF_TEXT(trace, 6, "flushbuf");
2833
2834 for (i = index; i < index + count; ++i) {
2835 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2836 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2837 SBAL_FLAGS_LAST_ENTRY;
2838
2839 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2840 continue;
2841
2842 if (!queue->do_pack){
2843 if ((atomic_read(&queue->used_buffers) >=
2844 (QETH_HIGH_WATERMARK_PACK -
2845 QETH_WATERMARK_PACK_FUZZ)) &&
2846 !atomic_read(&queue->set_pci_flags_count)){
2847 /* it's likely that we'll go to packing
2848 * mode soon */
2849 atomic_inc(&queue->set_pci_flags_count);
2850 buf->buffer->element[0].flags |= 0x40;
2851 }
2852 } else {
2853 if (!atomic_read(&queue->set_pci_flags_count)){
2854 /*
2855 * there's no outstanding PCI any more, so we
2856 * have to request a PCI to be sure the the PCI
2857 * will wake at some time in the future then we
2858 * can flush packed buffers that might still be
2859 * hanging around, which can happen if no
2860 * further send was requested by the stack
2861 */
2862 atomic_inc(&queue->set_pci_flags_count);
2863 buf->buffer->element[0].flags |= 0x40;
2864 }
2865 }
2866 }
2867
2868 queue->card->dev->trans_start = jiffies;
2869 #ifdef CONFIG_QETH_PERF_STATS
2870 queue->card->perf_stats.outbound_do_qdio_cnt++;
2871 queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2872 #endif
2873 if (under_int)
2874 rc = do_QDIO(CARD_DDEV(queue->card),
2875 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2876 queue->queue_no, index, count, NULL);
2877 else
2878 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2879 queue->queue_no, index, count, NULL);
2880 #ifdef CONFIG_QETH_PERF_STATS
2881 queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2882 queue->card->perf_stats.outbound_do_qdio_start_time;
2883 #endif
2884 if (rc){
2885 QETH_DBF_TEXT(trace, 2, "flushbuf");
2886 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2887 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2888 queue->card->stats.tx_errors += count;
2889 /* this must not happen under normal circumstances. if it
2890 * happens something is really wrong -> recover */
2891 qeth_schedule_recovery(queue->card);
2892 return;
2893 }
2894 atomic_add(count, &queue->used_buffers);
2895 #ifdef CONFIG_QETH_PERF_STATS
2896 queue->card->perf_stats.bufs_sent += count;
2897 #endif
2898 }
2899
2900 /*
2901 * Switched to packing state if the number of used buffers on a queue
2902 * reaches a certain limit.
2903 */
2904 static inline void
2905 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2906 {
2907 if (!queue->do_pack) {
2908 if (atomic_read(&queue->used_buffers)
2909 >= QETH_HIGH_WATERMARK_PACK){
2910 /* switch non-PACKING -> PACKING */
2911 QETH_DBF_TEXT(trace, 6, "np->pack");
2912 #ifdef CONFIG_QETH_PERF_STATS
2913 queue->card->perf_stats.sc_dp_p++;
2914 #endif
2915 queue->do_pack = 1;
2916 }
2917 }
2918 }
2919
2920 /*
2921 * Switches from packing to non-packing mode. If there is a packing
2922 * buffer on the queue this buffer will be prepared to be flushed.
2923 * In that case 1 is returned to inform the caller. If no buffer
2924 * has to be flushed, zero is returned.
2925 */
2926 static inline int
2927 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2928 {
2929 struct qeth_qdio_out_buffer *buffer;
2930 int flush_count = 0;
2931
2932 if (queue->do_pack) {
2933 if (atomic_read(&queue->used_buffers)
2934 <= QETH_LOW_WATERMARK_PACK) {
2935 /* switch PACKING -> non-PACKING */
2936 QETH_DBF_TEXT(trace, 6, "pack->np");
2937 #ifdef CONFIG_QETH_PERF_STATS
2938 queue->card->perf_stats.sc_p_dp++;
2939 #endif
2940 queue->do_pack = 0;
2941 /* flush packing buffers */
2942 buffer = &queue->bufs[queue->next_buf_to_fill];
2943 if ((atomic_read(&buffer->state) ==
2944 QETH_QDIO_BUF_EMPTY) &&
2945 (buffer->next_element_to_fill > 0)) {
2946 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2947 flush_count++;
2948 queue->next_buf_to_fill =
2949 (queue->next_buf_to_fill + 1) %
2950 QDIO_MAX_BUFFERS_PER_Q;
2951 }
2952 }
2953 }
2954 return flush_count;
2955 }
2956
2957 /*
2958 * Called to flush a packing buffer if no more pci flags are on the queue.
2959 * Checks if there is a packing buffer and prepares it to be flushed.
2960 * In that case returns 1, otherwise zero.
2961 */
2962 static inline int
2963 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2964 {
2965 struct qeth_qdio_out_buffer *buffer;
2966
2967 buffer = &queue->bufs[queue->next_buf_to_fill];
2968 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2969 (buffer->next_element_to_fill > 0)){
2970 /* it's a packing buffer */
2971 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2972 queue->next_buf_to_fill =
2973 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2974 return 1;
2975 }
2976 return 0;
2977 }
2978
2979 static inline void
2980 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2981 {
2982 int index;
2983 int flush_cnt = 0;
2984 int q_was_packing = 0;
2985
2986 /*
2987 * check if weed have to switch to non-packing mode or if
2988 * we have to get a pci flag out on the queue
2989 */
2990 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2991 !atomic_read(&queue->set_pci_flags_count)){
2992 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2993 QETH_OUT_Q_UNLOCKED) {
2994 /*
2995 * If we get in here, there was no action in
2996 * do_send_packet. So, we check if there is a
2997 * packing buffer to be flushed here.
2998 */
2999 netif_stop_queue(queue->card->dev);
3000 index = queue->next_buf_to_fill;
3001 q_was_packing = queue->do_pack;
3002 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3003 if (!flush_cnt &&
3004 !atomic_read(&queue->set_pci_flags_count))
3005 flush_cnt +=
3006 qeth_flush_buffers_on_no_pci(queue);
3007 #ifdef CONFIG_QETH_PERF_STATS
3008 if (q_was_packing)
3009 queue->card->perf_stats.bufs_sent_pack +=
3010 flush_cnt;
3011 #endif
3012 if (flush_cnt)
3013 qeth_flush_buffers(queue, 1, index, flush_cnt);
3014 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3015 }
3016 }
3017 }
3018
3019 static void
3020 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3021 unsigned int qdio_error, unsigned int siga_error,
3022 unsigned int __queue, int first_element, int count,
3023 unsigned long card_ptr)
3024 {
3025 struct qeth_card *card = (struct qeth_card *) card_ptr;
3026 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3027 struct qeth_qdio_out_buffer *buffer;
3028 int i;
3029
3030 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3031 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3032 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3033 QETH_DBF_TEXT(trace, 2, "achkcond");
3034 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3035 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3036 netif_stop_queue(card->dev);
3037 qeth_schedule_recovery(card);
3038 return;
3039 }
3040 }
3041 #ifdef CONFIG_QETH_PERF_STATS
3042 card->perf_stats.outbound_handler_cnt++;
3043 card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3044 #endif
3045 for(i = first_element; i < (first_element + count); ++i){
3046 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3047 /*we only handle the KICK_IT error by doing a recovery */
3048 if (qeth_handle_send_error(card, buffer,
3049 qdio_error, siga_error)
3050 == QETH_SEND_ERROR_KICK_IT){
3051 netif_stop_queue(card->dev);
3052 qeth_schedule_recovery(card);
3053 return;
3054 }
3055 qeth_clear_output_buffer(queue, buffer);
3056 }
3057 atomic_sub(count, &queue->used_buffers);
3058 /* check if we need to do something on this outbound queue */
3059 if (card->info.type != QETH_CARD_TYPE_IQD)
3060 qeth_check_outbound_queue(queue);
3061
3062 netif_wake_queue(queue->card->dev);
3063 #ifdef CONFIG_QETH_PERF_STATS
3064 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3065 card->perf_stats.outbound_handler_start_time;
3066 #endif
3067 }
3068
3069 static void
3070 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3071 {
3072
3073 param_field[0] = _ascebc['P'];
3074 param_field[1] = _ascebc['C'];
3075 param_field[2] = _ascebc['I'];
3076 param_field[3] = _ascebc['T'];
3077 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3078 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3079 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3080 }
3081
3082 static void
3083 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3084 {
3085 param_field[16] = _ascebc['B'];
3086 param_field[17] = _ascebc['L'];
3087 param_field[18] = _ascebc['K'];
3088 param_field[19] = _ascebc['T'];
3089 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3090 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3091 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3092 }
3093
3094 static void
3095 qeth_initialize_working_pool_list(struct qeth_card *card)
3096 {
3097 struct qeth_buffer_pool_entry *entry;
3098
3099 QETH_DBF_TEXT(trace,5,"inwrklst");
3100
3101 list_for_each_entry(entry,
3102 &card->qdio.init_pool.entry_list, init_list) {
3103 qeth_put_buffer_pool_entry(card,entry);
3104 }
3105 }
3106
3107 static void
3108 qeth_clear_working_pool_list(struct qeth_card *card)
3109 {
3110 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3111
3112 QETH_DBF_TEXT(trace,5,"clwrklst");
3113 list_for_each_entry_safe(pool_entry, tmp,
3114 &card->qdio.in_buf_pool.entry_list, list){
3115 list_del(&pool_entry->list);
3116 }
3117 }
3118
3119 static void
3120 qeth_free_buffer_pool(struct qeth_card *card)
3121 {
3122 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3123 int i=0;
3124 QETH_DBF_TEXT(trace,5,"freepool");
3125 list_for_each_entry_safe(pool_entry, tmp,
3126 &card->qdio.init_pool.entry_list, init_list){
3127 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3128 free_page((unsigned long)pool_entry->elements[i]);
3129 list_del(&pool_entry->init_list);
3130 kfree(pool_entry);
3131 }
3132 }
3133
3134 static int
3135 qeth_alloc_buffer_pool(struct qeth_card *card)
3136 {
3137 struct qeth_buffer_pool_entry *pool_entry;
3138 void *ptr;
3139 int i, j;
3140
3141 QETH_DBF_TEXT(trace,5,"alocpool");
3142 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3143 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3144 if (!pool_entry){
3145 qeth_free_buffer_pool(card);
3146 return -ENOMEM;
3147 }
3148 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3149 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3150 if (!ptr) {
3151 while (j > 0)
3152 free_page((unsigned long)
3153 pool_entry->elements[--j]);
3154 kfree(pool_entry);
3155 qeth_free_buffer_pool(card);
3156 return -ENOMEM;
3157 }
3158 pool_entry->elements[j] = ptr;
3159 }
3160 list_add(&pool_entry->init_list,
3161 &card->qdio.init_pool.entry_list);
3162 }
3163 return 0;
3164 }
3165
3166 int
3167 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3168 {
3169 QETH_DBF_TEXT(trace, 2, "realcbp");
3170
3171 if ((card->state != CARD_STATE_DOWN) &&
3172 (card->state != CARD_STATE_RECOVER))
3173 return -EPERM;
3174
3175 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3176 qeth_clear_working_pool_list(card);
3177 qeth_free_buffer_pool(card);
3178 card->qdio.in_buf_pool.buf_count = bufcnt;
3179 card->qdio.init_pool.buf_count = bufcnt;
3180 return qeth_alloc_buffer_pool(card);
3181 }
3182
3183 static int
3184 qeth_alloc_qdio_buffers(struct qeth_card *card)
3185 {
3186 int i, j;
3187
3188 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3189
3190 if (card->qdio.state == QETH_QDIO_ALLOCATED)
3191 return 0;
3192
3193 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3194 GFP_KERNEL|GFP_DMA);
3195 if (!card->qdio.in_q)
3196 return - ENOMEM;
3197 QETH_DBF_TEXT(setup, 2, "inq");
3198 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3199 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3200 /* give inbound qeth_qdio_buffers their qdio_buffers */
3201 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3202 card->qdio.in_q->bufs[i].buffer =
3203 &card->qdio.in_q->qdio_bufs[i];
3204 /* inbound buffer pool */
3205 if (qeth_alloc_buffer_pool(card)){
3206 kfree(card->qdio.in_q);
3207 return -ENOMEM;
3208 }
3209 /* outbound */
3210 card->qdio.out_qs =
3211 kmalloc(card->qdio.no_out_queues *
3212 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3213 if (!card->qdio.out_qs){
3214 qeth_free_buffer_pool(card);
3215 return -ENOMEM;
3216 }
3217 for (i = 0; i < card->qdio.no_out_queues; ++i){
3218 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3219 GFP_KERNEL|GFP_DMA);
3220 if (!card->qdio.out_qs[i]){
3221 while (i > 0)
3222 kfree(card->qdio.out_qs[--i]);
3223 kfree(card->qdio.out_qs);
3224 return -ENOMEM;
3225 }
3226 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3227 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3228 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3229 card->qdio.out_qs[i]->queue_no = i;
3230 /* give outbound qeth_qdio_buffers their qdio_buffers */
3231 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3232 card->qdio.out_qs[i]->bufs[j].buffer =
3233 &card->qdio.out_qs[i]->qdio_bufs[j];
3234 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3235 skb_list);
3236 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3237 }
3238 }
3239 card->qdio.state = QETH_QDIO_ALLOCATED;
3240 return 0;
3241 }
3242
3243 static void
3244 qeth_free_qdio_buffers(struct qeth_card *card)
3245 {
3246 int i, j;
3247
3248 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3249 if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3250 return;
3251 kfree(card->qdio.in_q);
3252 /* inbound buffer pool */
3253 qeth_free_buffer_pool(card);
3254 /* free outbound qdio_qs */
3255 for (i = 0; i < card->qdio.no_out_queues; ++i){
3256 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3257 qeth_clear_output_buffer(card->qdio.out_qs[i],
3258 &card->qdio.out_qs[i]->bufs[j]);
3259 kfree(card->qdio.out_qs[i]);
3260 }
3261 kfree(card->qdio.out_qs);
3262 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3263 }
3264
3265 static void
3266 qeth_clear_qdio_buffers(struct qeth_card *card)
3267 {
3268 int i, j;
3269
3270 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3271 /* clear outbound buffers to free skbs */
3272 for (i = 0; i < card->qdio.no_out_queues; ++i)
3273 if (card->qdio.out_qs[i]){
3274 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3275 qeth_clear_output_buffer(card->qdio.out_qs[i],
3276 &card->qdio.out_qs[i]->bufs[j]);
3277 }
3278 }
3279
3280 static void
3281 qeth_init_qdio_info(struct qeth_card *card)
3282 {
3283 QETH_DBF_TEXT(setup, 4, "intqdinf");
3284 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3285 /* inbound */
3286 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3287 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3288 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3289 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3290 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3291 }
3292
3293 static int
3294 qeth_init_qdio_queues(struct qeth_card *card)
3295 {
3296 int i, j;
3297 int rc;
3298
3299 QETH_DBF_TEXT(setup, 2, "initqdqs");
3300
3301 /* inbound queue */
3302 memset(card->qdio.in_q->qdio_bufs, 0,
3303 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3304 qeth_initialize_working_pool_list(card);
3305 /*give only as many buffers to hardware as we have buffer pool entries*/
3306 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3307 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3308 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3309 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3310 card->qdio.in_buf_pool.buf_count - 1, NULL);
3311 if (rc) {
3312 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3313 return rc;
3314 }
3315 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3316 if (rc) {
3317 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3318 return rc;
3319 }
3320 /* outbound queue */
3321 for (i = 0; i < card->qdio.no_out_queues; ++i){
3322 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3323 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3324 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3325 qeth_clear_output_buffer(card->qdio.out_qs[i],
3326 &card->qdio.out_qs[i]->bufs[j]);
3327 }
3328 card->qdio.out_qs[i]->card = card;
3329 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3330 card->qdio.out_qs[i]->do_pack = 0;
3331 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3332 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3333 atomic_set(&card->qdio.out_qs[i]->state,
3334 QETH_OUT_Q_UNLOCKED);
3335 }
3336 return 0;
3337 }
3338
3339 static int
3340 qeth_qdio_establish(struct qeth_card *card)
3341 {
3342 struct qdio_initialize init_data;
3343 char *qib_param_field;
3344 struct qdio_buffer **in_sbal_ptrs;
3345 struct qdio_buffer **out_sbal_ptrs;
3346 int i, j, k;
3347 int rc;
3348
3349 QETH_DBF_TEXT(setup, 2, "qdioest");
3350
3351 qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3352 GFP_KERNEL);
3353 if (!qib_param_field)
3354 return -ENOMEM;
3355
3356 memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3357
3358 qeth_create_qib_param_field(card, qib_param_field);
3359 qeth_create_qib_param_field_blkt(card, qib_param_field);
3360
3361 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3362 GFP_KERNEL);
3363 if (!in_sbal_ptrs) {
3364 kfree(qib_param_field);
3365 return -ENOMEM;
3366 }
3367 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3368 in_sbal_ptrs[i] = (struct qdio_buffer *)
3369 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3370
3371 out_sbal_ptrs =
3372 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3373 sizeof(void *), GFP_KERNEL);
3374 if (!out_sbal_ptrs) {
3375 kfree(in_sbal_ptrs);
3376 kfree(qib_param_field);
3377 return -ENOMEM;
3378 }
3379 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3380 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3381 out_sbal_ptrs[k] = (struct qdio_buffer *)
3382 virt_to_phys(card->qdio.out_qs[i]->
3383 bufs[j].buffer);
3384 }
3385
3386 memset(&init_data, 0, sizeof(struct qdio_initialize));
3387 init_data.cdev = CARD_DDEV(card);
3388 init_data.q_format = qeth_get_qdio_q_format(card);
3389 init_data.qib_param_field_format = 0;
3390 init_data.qib_param_field = qib_param_field;
3391 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3392 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3393 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3394 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3395 init_data.no_input_qs = 1;
3396 init_data.no_output_qs = card->qdio.no_out_queues;
3397 init_data.input_handler = (qdio_handler_t *)
3398 qeth_qdio_input_handler;
3399 init_data.output_handler = (qdio_handler_t *)
3400 qeth_qdio_output_handler;
3401 init_data.int_parm = (unsigned long) card;
3402 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3403 QDIO_OUTBOUND_0COPY_SBALS |
3404 QDIO_USE_OUTBOUND_PCIS;
3405 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3406 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3407
3408 if (!(rc = qdio_initialize(&init_data)))
3409 card->qdio.state = QETH_QDIO_ESTABLISHED;
3410
3411 kfree(out_sbal_ptrs);
3412 kfree(in_sbal_ptrs);
3413 kfree(qib_param_field);
3414 return rc;
3415 }
3416
3417 static int
3418 qeth_qdio_activate(struct qeth_card *card)
3419 {
3420 QETH_DBF_TEXT(setup,3,"qdioact");
3421 return qdio_activate(CARD_DDEV(card), 0);
3422 }
3423
3424 static int
3425 qeth_clear_channel(struct qeth_channel *channel)
3426 {
3427 unsigned long flags;
3428 struct qeth_card *card;
3429 int rc;
3430
3431 QETH_DBF_TEXT(trace,3,"clearch");
3432 card = CARD_FROM_CDEV(channel->ccwdev);
3433 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3434 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3435 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3436
3437 if (rc)
3438 return rc;
3439 rc = wait_event_interruptible_timeout(card->wait_q,
3440 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3441 if (rc == -ERESTARTSYS)
3442 return rc;
3443 if (channel->state != CH_STATE_STOPPED)
3444 return -ETIME;
3445 channel->state = CH_STATE_DOWN;
3446 return 0;
3447 }
3448
3449 static int
3450 qeth_halt_channel(struct qeth_channel *channel)
3451 {
3452 unsigned long flags;
3453 struct qeth_card *card;
3454 int rc;
3455
3456 QETH_DBF_TEXT(trace,3,"haltch");
3457 card = CARD_FROM_CDEV(channel->ccwdev);
3458 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3459 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3460 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3461
3462 if (rc)
3463 return rc;
3464 rc = wait_event_interruptible_timeout(card->wait_q,
3465 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3466 if (rc == -ERESTARTSYS)
3467 return rc;
3468 if (channel->state != CH_STATE_HALTED)
3469 return -ETIME;
3470 return 0;
3471 }
3472
3473 static int
3474 qeth_halt_channels(struct qeth_card *card)
3475 {
3476 int rc1 = 0, rc2=0, rc3 = 0;
3477
3478 QETH_DBF_TEXT(trace,3,"haltchs");
3479 rc1 = qeth_halt_channel(&card->read);
3480 rc2 = qeth_halt_channel(&card->write);
3481 rc3 = qeth_halt_channel(&card->data);
3482 if (rc1)
3483 return rc1;
3484 if (rc2)
3485 return rc2;
3486 return rc3;
3487 }
3488 static int
3489 qeth_clear_channels(struct qeth_card *card)
3490 {
3491 int rc1 = 0, rc2=0, rc3 = 0;
3492
3493 QETH_DBF_TEXT(trace,3,"clearchs");
3494 rc1 = qeth_clear_channel(&card->read);
3495 rc2 = qeth_clear_channel(&card->write);
3496 rc3 = qeth_clear_channel(&card->data);
3497 if (rc1)
3498 return rc1;
3499 if (rc2)
3500 return rc2;
3501 return rc3;
3502 }
3503
3504 static int
3505 qeth_clear_halt_card(struct qeth_card *card, int halt)
3506 {
3507 int rc = 0;
3508
3509 QETH_DBF_TEXT(trace,3,"clhacrd");
3510 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3511
3512 if (halt)
3513 rc = qeth_halt_channels(card);
3514 if (rc)
3515 return rc;
3516 return qeth_clear_channels(card);
3517 }
3518
3519 static int
3520 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3521 {
3522 int rc = 0;
3523
3524 QETH_DBF_TEXT(trace,3,"qdioclr");
3525 if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3526 if ((rc = qdio_cleanup(CARD_DDEV(card),
3527 (card->info.type == QETH_CARD_TYPE_IQD) ?
3528 QDIO_FLAG_CLEANUP_USING_HALT :
3529 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3530 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3531 card->qdio.state = QETH_QDIO_ALLOCATED;
3532 }
3533 if ((rc = qeth_clear_halt_card(card, use_halt)))
3534 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3535 card->state = CARD_STATE_DOWN;
3536 return rc;
3537 }
3538
3539 static int
3540 qeth_dm_act(struct qeth_card *card)
3541 {
3542 int rc;
3543 struct qeth_cmd_buffer *iob;
3544
3545 QETH_DBF_TEXT(setup,2,"dmact");
3546
3547 iob = qeth_wait_for_buffer(&card->write);
3548 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3549
3550 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3551 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3552 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3553 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3554 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3555 return rc;
3556 }
3557
3558 static int
3559 qeth_mpc_initialize(struct qeth_card *card)
3560 {
3561 int rc;
3562
3563 QETH_DBF_TEXT(setup,2,"mpcinit");
3564
3565 if ((rc = qeth_issue_next_read(card))){
3566 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3567 return rc;
3568 }
3569 if ((rc = qeth_cm_enable(card))){
3570 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3571 goto out_qdio;
3572 }
3573 if ((rc = qeth_cm_setup(card))){
3574 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3575 goto out_qdio;
3576 }
3577 if ((rc = qeth_ulp_enable(card))){
3578 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3579 goto out_qdio;
3580 }
3581 if ((rc = qeth_ulp_setup(card))){
3582 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3583 goto out_qdio;
3584 }
3585 if ((rc = qeth_alloc_qdio_buffers(card))){
3586 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3587 goto out_qdio;
3588 }
3589 if ((rc = qeth_qdio_establish(card))){
3590 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3591 qeth_free_qdio_buffers(card);
3592 goto out_qdio;
3593 }
3594 if ((rc = qeth_qdio_activate(card))){
3595 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3596 goto out_qdio;
3597 }
3598 if ((rc = qeth_dm_act(card))){
3599 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3600 goto out_qdio;
3601 }
3602
3603 return 0;
3604 out_qdio:
3605 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3606 return rc;
3607 }
3608
3609 static struct net_device *
3610 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3611 {
3612 struct net_device *dev = NULL;
3613
3614 switch (type) {
3615 case QETH_CARD_TYPE_OSAE:
3616 switch (linktype) {
3617 case QETH_LINK_TYPE_LANE_TR:
3618 case QETH_LINK_TYPE_HSTR:
3619 #ifdef CONFIG_TR
3620 dev = alloc_trdev(0);
3621 #endif /* CONFIG_TR */
3622 break;
3623 default:
3624 dev = alloc_etherdev(0);
3625 }
3626 break;
3627 case QETH_CARD_TYPE_IQD:
3628 dev = alloc_netdev(0, "hsi%d", ether_setup);
3629 break;
3630 case QETH_CARD_TYPE_OSN:
3631 dev = alloc_netdev(0, "osn%d", ether_setup);
3632 break;
3633 default:
3634 dev = alloc_etherdev(0);
3635 }
3636 return dev;
3637 }
3638
3639 /*hard_header fake function; used in case fake_ll is set */
3640 static int
3641 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3642 unsigned short type, void *daddr, void *saddr,
3643 unsigned len)
3644 {
3645 if(dev->type == ARPHRD_IEEE802_TR){
3646 struct trh_hdr *hdr;
3647 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3648 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3649 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3650 return QETH_FAKE_LL_LEN_TR;
3651
3652 } else {
3653 struct ethhdr *hdr;
3654 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3655 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3656 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3657 if (type != ETH_P_802_3)
3658 hdr->h_proto = htons(type);
3659 else
3660 hdr->h_proto = htons(len);
3661 return QETH_FAKE_LL_LEN_ETH;
3662
3663 }
3664 }
3665
3666 static inline int
3667 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3668
3669 static int
3670 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3671 {
3672 int rc;
3673 struct qeth_card *card;
3674
3675 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3676 card = (struct qeth_card *)dev->priv;
3677 if (skb==NULL) {
3678 card->stats.tx_dropped++;
3679 card->stats.tx_errors++;
3680 /* return OK; otherwise ksoftirqd goes to 100% */
3681 return NETDEV_TX_OK;
3682 }
3683 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3684 card->stats.tx_dropped++;
3685 card->stats.tx_errors++;
3686 card->stats.tx_carrier_errors++;
3687 dev_kfree_skb_any(skb);
3688 /* return OK; otherwise ksoftirqd goes to 100% */
3689 return NETDEV_TX_OK;
3690 }
3691 #ifdef CONFIG_QETH_PERF_STATS
3692 card->perf_stats.outbound_cnt++;
3693 card->perf_stats.outbound_start_time = qeth_get_micros();
3694 #endif
3695 netif_stop_queue(dev);
3696 if ((rc = qeth_send_packet(card, skb))) {
3697 if (rc == -EBUSY) {
3698 return NETDEV_TX_BUSY;
3699 } else {
3700 card->stats.tx_errors++;
3701 card->stats.tx_dropped++;
3702 dev_kfree_skb_any(skb);
3703 /*set to OK; otherwise ksoftirqd goes to 100% */
3704 rc = NETDEV_TX_OK;
3705 }
3706 }
3707 netif_wake_queue(dev);
3708 #ifdef CONFIG_QETH_PERF_STATS
3709 card->perf_stats.outbound_time += qeth_get_micros() -
3710 card->perf_stats.outbound_start_time;
3711 #endif
3712 return rc;
3713 }
3714
3715 static int
3716 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3717 {
3718 int rc = 0;
3719 #ifdef CONFIG_QETH_VLAN
3720 struct vlan_group *vg;
3721 int i;
3722
3723 if (!(vg = card->vlangrp))
3724 return rc;
3725
3726 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3727 if (vg->vlan_devices[i] == dev){
3728 rc = QETH_VLAN_CARD;
3729 break;
3730 }
3731 }
3732 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3733 return 0;
3734
3735 #endif
3736 return rc;
3737 }
3738
3739 static int
3740 qeth_verify_dev(struct net_device *dev)
3741 {
3742 struct qeth_card *card;
3743 unsigned long flags;
3744 int rc = 0;
3745
3746 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3747 list_for_each_entry(card, &qeth_card_list.list, list){
3748 if (card->dev == dev){
3749 rc = QETH_REAL_CARD;
3750 break;
3751 }
3752 rc = qeth_verify_vlan_dev(dev, card);
3753 if (rc)
3754 break;
3755 }
3756 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3757
3758 return rc;
3759 }
3760
3761 static struct qeth_card *
3762 qeth_get_card_from_dev(struct net_device *dev)
3763 {
3764 struct qeth_card *card = NULL;
3765 int rc;
3766
3767 rc = qeth_verify_dev(dev);
3768 if (rc == QETH_REAL_CARD)
3769 card = (struct qeth_card *)dev->priv;
3770 else if (rc == QETH_VLAN_CARD)
3771 card = (struct qeth_card *)
3772 VLAN_DEV_INFO(dev)->real_dev->priv;
3773
3774 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3775 return card ;
3776 }
3777
3778 static void
3779 qeth_tx_timeout(struct net_device *dev)
3780 {
3781 struct qeth_card *card;
3782
3783 card = (struct qeth_card *) dev->priv;
3784 card->stats.tx_errors++;
3785 qeth_schedule_recovery(card);
3786 }
3787
3788 static int
3789 qeth_open(struct net_device *dev)
3790 {
3791 struct qeth_card *card;
3792
3793 QETH_DBF_TEXT(trace, 4, "qethopen");
3794
3795 card = (struct qeth_card *) dev->priv;
3796
3797 if (card->state != CARD_STATE_SOFTSETUP)
3798 return -ENODEV;
3799
3800 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3801 (card->options.layer2) &&
3802 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3803 QETH_DBF_TEXT(trace,4,"nomacadr");
3804 return -EPERM;
3805 }
3806 card->dev->flags |= IFF_UP;
3807 netif_start_queue(dev);
3808 card->data.state = CH_STATE_UP;
3809 card->state = CARD_STATE_UP;
3810
3811 if (!card->lan_online && netif_carrier_ok(dev))
3812 netif_carrier_off(dev);
3813 return 0;
3814 }
3815
3816 static int
3817 qeth_stop(struct net_device *dev)
3818 {
3819 struct qeth_card *card;
3820
3821 QETH_DBF_TEXT(trace, 4, "qethstop");
3822
3823 card = (struct qeth_card *) dev->priv;
3824
3825 netif_stop_queue(dev);
3826 card->dev->flags &= ~IFF_UP;
3827 if (card->state == CARD_STATE_UP)
3828 card->state = CARD_STATE_SOFTSETUP;
3829 return 0;
3830 }
3831
3832 static inline int
3833 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3834 {
3835 int cast_type = RTN_UNSPEC;
3836
3837 if (card->info.type == QETH_CARD_TYPE_OSN)
3838 return cast_type;
3839
3840 if (skb->dst && skb->dst->neighbour){
3841 cast_type = skb->dst->neighbour->type;
3842 if ((cast_type == RTN_BROADCAST) ||
3843 (cast_type == RTN_MULTICAST) ||
3844 (cast_type == RTN_ANYCAST))
3845 return cast_type;
3846 else
3847 return RTN_UNSPEC;
3848 }
3849 /* try something else */
3850 if (skb->protocol == ETH_P_IPV6)
3851 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3852 else if (skb->protocol == ETH_P_IP)
3853 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3854 /* ... */
3855 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3856 return RTN_BROADCAST;
3857 else {
3858 u16 hdr_mac;
3859
3860 hdr_mac = *((u16 *)skb->data);
3861 /* tr multicast? */
3862 switch (card->info.link_type) {
3863 case QETH_LINK_TYPE_HSTR:
3864 case QETH_LINK_TYPE_LANE_TR:
3865 if ((hdr_mac == QETH_TR_MAC_NC) ||
3866 (hdr_mac == QETH_TR_MAC_C))
3867 return RTN_MULTICAST;
3868 /* eth or so multicast? */
3869 default:
3870 if ((hdr_mac == QETH_ETH_MAC_V4) ||
3871 (hdr_mac == QETH_ETH_MAC_V6))
3872 return RTN_MULTICAST;
3873 }
3874 }
3875 return cast_type;
3876 }
3877
3878 static inline int
3879 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3880 int ipv, int cast_type)
3881 {
3882 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3883 return card->qdio.default_out_queue;
3884 switch (card->qdio.no_out_queues) {
3885 case 4:
3886 if (cast_type && card->info.is_multicast_different)
3887 return card->info.is_multicast_different &
3888 (card->qdio.no_out_queues - 1);
3889 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3890 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3891 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3892 return 3;
3893 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3894 return 2;
3895 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3896 return 1;
3897 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3898 return 0;
3899 }
3900 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3901 return 3 - (skb->nh.iph->tos >> 6);
3902 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3903 /* TODO: IPv6!!! */
3904 }
3905 return card->qdio.default_out_queue;
3906 case 1: /* fallthrough for single-out-queue 1920-device */
3907 default:
3908 return card->qdio.default_out_queue;
3909 }
3910 }
3911
3912 static inline int
3913 qeth_get_ip_version(struct sk_buff *skb)
3914 {
3915 switch (skb->protocol) {
3916 case ETH_P_IPV6:
3917 return 6;
3918 case ETH_P_IP:
3919 return 4;
3920 default:
3921 return 0;
3922 }
3923 }
3924
3925 static inline int
3926 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3927 struct qeth_hdr **hdr, int ipv)
3928 {
3929 int rc = 0;
3930 #ifdef CONFIG_QETH_VLAN
3931 u16 *tag;
3932 #endif
3933
3934 QETH_DBF_TEXT(trace, 6, "prepskb");
3935 if (card->info.type == QETH_CARD_TYPE_OSN) {
3936 *hdr = (struct qeth_hdr *)(*skb)->data;
3937 return rc;
3938 }
3939 rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3940 if (rc)
3941 return rc;
3942 #ifdef CONFIG_QETH_VLAN
3943 if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3944 ((ipv == 6) || card->options.layer2) ) {
3945 /*
3946 * Move the mac addresses (6 bytes src, 6 bytes dest)
3947 * to the beginning of the new header. We are using three
3948 * memcpys instead of one memmove to save cycles.
3949 */
3950 skb_push(*skb, VLAN_HLEN);
3951 memcpy((*skb)->data, (*skb)->data + 4, 4);
3952 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3953 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3954 tag = (u16 *)((*skb)->data + 12);
3955 /*
3956 * first two bytes = ETH_P_8021Q (0x8100)
3957 * second two bytes = VLANID
3958 */
3959 *tag = __constant_htons(ETH_P_8021Q);
3960 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3961 }
3962 #endif
3963 *hdr = (struct qeth_hdr *)
3964 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3965 if (hdr == NULL)
3966 return -EINVAL;
3967 return 0;
3968 }
3969
3970 static inline u8
3971 qeth_get_qeth_hdr_flags4(int cast_type)
3972 {
3973 if (cast_type == RTN_MULTICAST)
3974 return QETH_CAST_MULTICAST;
3975 if (cast_type == RTN_BROADCAST)
3976 return QETH_CAST_BROADCAST;
3977 return QETH_CAST_UNICAST;
3978 }
3979
3980 static inline u8
3981 qeth_get_qeth_hdr_flags6(int cast_type)
3982 {
3983 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3984 if (cast_type == RTN_MULTICAST)
3985 return ct | QETH_CAST_MULTICAST;
3986 if (cast_type == RTN_ANYCAST)
3987 return ct | QETH_CAST_ANYCAST;
3988 if (cast_type == RTN_BROADCAST)
3989 return ct | QETH_CAST_BROADCAST;
3990 return ct | QETH_CAST_UNICAST;
3991 }
3992
3993 static inline void
3994 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3995 struct sk_buff *skb)
3996 {
3997 __u16 hdr_mac;
3998
3999 if (!memcmp(skb->data+QETH_HEADER_SIZE,
4000 skb->dev->broadcast,6)) { /* broadcast? */
4001 *(__u32 *)hdr->hdr.l2.flags |=
4002 QETH_LAYER2_FLAG_BROADCAST << 8;
4003 return;
4004 }
4005 hdr_mac=*((__u16*)skb->data);
4006 /* tr multicast? */
4007 switch (card->info.link_type) {
4008 case QETH_LINK_TYPE_HSTR:
4009 case QETH_LINK_TYPE_LANE_TR:
4010 if ((hdr_mac == QETH_TR_MAC_NC) ||
4011 (hdr_mac == QETH_TR_MAC_C) )
4012 *(__u32 *)hdr->hdr.l2.flags |=
4013 QETH_LAYER2_FLAG_MULTICAST << 8;
4014 else
4015 *(__u32 *)hdr->hdr.l2.flags |=
4016 QETH_LAYER2_FLAG_UNICAST << 8;
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 *(__u32 *)hdr->hdr.l2.flags |=
4023 QETH_LAYER2_FLAG_MULTICAST << 8;
4024 else
4025 *(__u32 *)hdr->hdr.l2.flags |=
4026 QETH_LAYER2_FLAG_UNICAST << 8;
4027 }
4028 }
4029
4030 static inline void
4031 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4032 struct sk_buff *skb, int cast_type)
4033 {
4034 memset(hdr, 0, sizeof(struct qeth_hdr));
4035 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4036
4037 /* set byte 0 to "0x02" and byte 3 to casting flags */
4038 if (cast_type==RTN_MULTICAST)
4039 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4040 else if (cast_type==RTN_BROADCAST)
4041 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4042 else
4043 qeth_layer2_get_packet_type(card, hdr, skb);
4044
4045 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4046 #ifdef CONFIG_QETH_VLAN
4047 /* VSWITCH relies on the VLAN
4048 * information to be present in
4049 * the QDIO header */
4050 if ((card->vlangrp != NULL) &&
4051 vlan_tx_tag_present(skb)) {
4052 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4053 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4054 }
4055 #endif
4056 }
4057
4058 void
4059 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4060 struct sk_buff *skb, int ipv, int cast_type)
4061 {
4062 QETH_DBF_TEXT(trace, 6, "fillhdr");
4063
4064 memset(hdr, 0, sizeof(struct qeth_hdr));
4065 if (card->options.layer2) {
4066 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4067 return;
4068 }
4069 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4070 hdr->hdr.l3.ext_flags = 0;
4071 #ifdef CONFIG_QETH_VLAN
4072 /*
4073 * before we're going to overwrite this location with next hop ip.
4074 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4075 */
4076 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4077 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4078 QETH_HDR_EXT_VLAN_FRAME :
4079 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4080 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4081 }
4082 #endif /* CONFIG_QETH_VLAN */
4083 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4084 if (ipv == 4) { /* IPv4 */
4085 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4086 memset(hdr->hdr.l3.dest_addr, 0, 12);
4087 if ((skb->dst) && (skb->dst->neighbour)) {
4088 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4089 *((u32 *) skb->dst->neighbour->primary_key);
4090 } else {
4091 /* fill in destination address used in ip header */
4092 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4093 }
4094 } else if (ipv == 6) { /* IPv6 or passthru */
4095 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4096 if ((skb->dst) && (skb->dst->neighbour)) {
4097 memcpy(hdr->hdr.l3.dest_addr,
4098 skb->dst->neighbour->primary_key, 16);
4099 } else {
4100 /* fill in destination address used in ip header */
4101 memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4102 }
4103 } else { /* passthrough */
4104 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4105 !memcmp(skb->data + sizeof(struct qeth_hdr) +
4106 sizeof(__u16), skb->dev->broadcast, 6)) {
4107 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4108 QETH_HDR_PASSTHRU;
4109 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4110 skb->dev->broadcast, 6)) { /* broadcast? */
4111 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4112 QETH_HDR_PASSTHRU;
4113 } else {
4114 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4115 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4116 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4117 }
4118 }
4119 }
4120
4121 static inline void
4122 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4123 int is_tso, int *next_element_to_fill)
4124 {
4125 int length = skb->len;
4126 int length_here;
4127 int element;
4128 char *data;
4129 int first_lap ;
4130
4131 element = *next_element_to_fill;
4132 data = skb->data;
4133 first_lap = (is_tso == 0 ? 1 : 0);
4134
4135 while (length > 0) {
4136 /* length_here is the remaining amount of data in this page */
4137 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4138 if (length < length_here)
4139 length_here = length;
4140
4141 buffer->element[element].addr = data;
4142 buffer->element[element].length = length_here;
4143 length -= length_here;
4144 if (!length) {
4145 if (first_lap)
4146 buffer->element[element].flags = 0;
4147 else
4148 buffer->element[element].flags =
4149 SBAL_FLAGS_LAST_FRAG;
4150 } else {
4151 if (first_lap)
4152 buffer->element[element].flags =
4153 SBAL_FLAGS_FIRST_FRAG;
4154 else
4155 buffer->element[element].flags =
4156 SBAL_FLAGS_MIDDLE_FRAG;
4157 }
4158 data += length_here;
4159 element++;
4160 first_lap = 0;
4161 }
4162 *next_element_to_fill = element;
4163 }
4164
4165 static inline int
4166 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4167 struct qeth_qdio_out_buffer *buf,
4168 struct sk_buff *skb)
4169 {
4170 struct qdio_buffer *buffer;
4171 struct qeth_hdr_tso *hdr;
4172 int flush_cnt = 0, hdr_len, large_send = 0;
4173
4174 QETH_DBF_TEXT(trace, 6, "qdfillbf");
4175
4176 buffer = buf->buffer;
4177 atomic_inc(&skb->users);
4178 skb_queue_tail(&buf->skb_list, skb);
4179
4180 hdr = (struct qeth_hdr_tso *) skb->data;
4181 /*check first on TSO ....*/
4182 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4183 int element = buf->next_element_to_fill;
4184
4185 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4186 /*fill first buffer entry only with header information */
4187 buffer->element[element].addr = skb->data;
4188 buffer->element[element].length = hdr_len;
4189 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4190 buf->next_element_to_fill++;
4191 skb->data += hdr_len;
4192 skb->len -= hdr_len;
4193 large_send = 1;
4194 }
4195 if (skb_shinfo(skb)->nr_frags == 0)
4196 __qeth_fill_buffer(skb, buffer, large_send,
4197 (int *)&buf->next_element_to_fill);
4198 else
4199 __qeth_fill_buffer_frag(skb, buffer, large_send,
4200 (int *)&buf->next_element_to_fill);
4201
4202 if (!queue->do_pack) {
4203 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4204 /* set state to PRIMED -> will be flushed */
4205 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4206 flush_cnt = 1;
4207 } else {
4208 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4209 #ifdef CONFIG_QETH_PERF_STATS
4210 queue->card->perf_stats.skbs_sent_pack++;
4211 #endif
4212 if (buf->next_element_to_fill >=
4213 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4214 /*
4215 * packed buffer if full -> set state PRIMED
4216 * -> will be flushed
4217 */
4218 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4219 flush_cnt = 1;
4220 }
4221 }
4222 return flush_cnt;
4223 }
4224
4225 static inline int
4226 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4227 struct sk_buff *skb, struct qeth_hdr *hdr,
4228 int elements_needed,
4229 struct qeth_eddp_context *ctx)
4230 {
4231 struct qeth_qdio_out_buffer *buffer;
4232 int buffers_needed = 0;
4233 int flush_cnt = 0;
4234 int index;
4235
4236 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4237
4238 /* spin until we get the queue ... */
4239 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4240 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4241 /* ... now we've got the queue */
4242 index = queue->next_buf_to_fill;
4243 buffer = &queue->bufs[queue->next_buf_to_fill];
4244 /*
4245 * check if buffer is empty to make sure that we do not 'overtake'
4246 * ourselves and try to fill a buffer that is already primed
4247 */
4248 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4249 card->stats.tx_dropped++;
4250 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4251 return -EBUSY;
4252 }
4253 if (ctx == NULL)
4254 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4255 QDIO_MAX_BUFFERS_PER_Q;
4256 else {
4257 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4258 if (buffers_needed < 0) {
4259 card->stats.tx_dropped++;
4260 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4261 return -EBUSY;
4262 }
4263 queue->next_buf_to_fill =
4264 (queue->next_buf_to_fill + buffers_needed) %
4265 QDIO_MAX_BUFFERS_PER_Q;
4266 }
4267 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4268 if (ctx == NULL) {
4269 qeth_fill_buffer(queue, buffer, skb);
4270 qeth_flush_buffers(queue, 0, index, 1);
4271 } else {
4272 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4273 WARN_ON(buffers_needed != flush_cnt);
4274 qeth_flush_buffers(queue, 0, index, flush_cnt);
4275 }
4276 return 0;
4277 }
4278
4279 static inline int
4280 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4281 struct sk_buff *skb, struct qeth_hdr *hdr,
4282 int elements_needed, struct qeth_eddp_context *ctx)
4283 {
4284 struct qeth_qdio_out_buffer *buffer;
4285 int start_index;
4286 int flush_count = 0;
4287 int do_pack = 0;
4288 int tmp;
4289 int rc = 0;
4290
4291 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4292
4293 /* spin until we get the queue ... */
4294 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4295 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4296 start_index = queue->next_buf_to_fill;
4297 buffer = &queue->bufs[queue->next_buf_to_fill];
4298 /*
4299 * check if buffer is empty to make sure that we do not 'overtake'
4300 * ourselves and try to fill a buffer that is already primed
4301 */
4302 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4303 card->stats.tx_dropped++;
4304 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4305 return -EBUSY;
4306 }
4307 /* check if we need to switch packing state of this queue */
4308 qeth_switch_to_packing_if_needed(queue);
4309 if (queue->do_pack){
4310 do_pack = 1;
4311 if (ctx == NULL) {
4312 /* does packet fit in current buffer? */
4313 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4314 buffer->next_element_to_fill) < elements_needed){
4315 /* ... no -> set state PRIMED */
4316 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4317 flush_count++;
4318 queue->next_buf_to_fill =
4319 (queue->next_buf_to_fill + 1) %
4320 QDIO_MAX_BUFFERS_PER_Q;
4321 buffer = &queue->bufs[queue->next_buf_to_fill];
4322 /* we did a step forward, so check buffer state
4323 * again */
4324 if (atomic_read(&buffer->state) !=
4325 QETH_QDIO_BUF_EMPTY){
4326 card->stats.tx_dropped++;
4327 qeth_flush_buffers(queue, 0, start_index, flush_count);
4328 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4329 return -EBUSY;
4330 }
4331 }
4332 } else {
4333 /* check if we have enough elements (including following
4334 * free buffers) to handle eddp context */
4335 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4336 printk("eddp tx_dropped 1\n");
4337 card->stats.tx_dropped++;
4338 rc = -EBUSY;
4339 goto out;
4340 }
4341 }
4342 }
4343 if (ctx == NULL)
4344 tmp = qeth_fill_buffer(queue, buffer, skb);
4345 else {
4346 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4347 if (tmp < 0) {
4348 printk("eddp tx_dropped 2\n");
4349 card->stats.tx_dropped++;
4350 rc = - EBUSY;
4351 goto out;
4352 }
4353 }
4354 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4355 QDIO_MAX_BUFFERS_PER_Q;
4356 flush_count += tmp;
4357 out:
4358 if (flush_count)
4359 qeth_flush_buffers(queue, 0, start_index, flush_count);
4360 else if (!atomic_read(&queue->set_pci_flags_count))
4361 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4362 /*
4363 * queue->state will go from LOCKED -> UNLOCKED or from
4364 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4365 * (switch packing state or flush buffer to get another pci flag out).
4366 * In that case we will enter this loop
4367 */
4368 while (atomic_dec_return(&queue->state)){
4369 flush_count = 0;
4370 start_index = queue->next_buf_to_fill;
4371 /* check if we can go back to non-packing state */
4372 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4373 /*
4374 * check if we need to flush a packing buffer to get a pci
4375 * flag out on the queue
4376 */
4377 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4378 flush_count += qeth_flush_buffers_on_no_pci(queue);
4379 if (flush_count)
4380 qeth_flush_buffers(queue, 0, start_index, flush_count);
4381 }
4382 /* at this point the queue is UNLOCKED again */
4383 #ifdef CONFIG_QETH_PERF_STATS
4384 if (do_pack)
4385 queue->card->perf_stats.bufs_sent_pack += flush_count;
4386 #endif /* CONFIG_QETH_PERF_STATS */
4387
4388 return rc;
4389 }
4390
4391 static inline int
4392 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4393 struct sk_buff *skb, int elems)
4394 {
4395 int elements_needed = 0;
4396
4397 if (skb_shinfo(skb)->nr_frags > 0) {
4398 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4399 }
4400 if (elements_needed == 0 )
4401 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4402 + skb->len) >> PAGE_SHIFT);
4403 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4404 PRINT_ERR("qeth_do_send_packet: invalid size of "
4405 "IP packet (Number=%d / Length=%d). Discarded.\n",
4406 (elements_needed+elems), skb->len);
4407 return 0;
4408 }
4409 return elements_needed;
4410 }
4411
4412 static inline int
4413 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4414 {
4415 int ipv = 0;
4416 int cast_type;
4417 struct qeth_qdio_out_q *queue;
4418 struct qeth_hdr *hdr = NULL;
4419 int elements_needed = 0;
4420 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4421 struct qeth_eddp_context *ctx = NULL;
4422 int rc;
4423
4424 QETH_DBF_TEXT(trace, 6, "sendpkt");
4425
4426 if (!card->options.layer2) {
4427 ipv = qeth_get_ip_version(skb);
4428 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4429 if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4430 card->stats.tx_dropped++;
4431 dev_kfree_skb_irq(skb);
4432 return 0;
4433 }
4434 if(card->dev->type == ARPHRD_IEEE802_TR){
4435 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4436 } else {
4437 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4438 }
4439 }
4440 }
4441 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4442 (skb->protocol == htons(ETH_P_IPV6))) {
4443 dev_kfree_skb_any(skb);
4444 return 0;
4445 }
4446 cast_type = qeth_get_cast_type(card, skb);
4447 if ((cast_type == RTN_BROADCAST) &&
4448 (card->info.broadcast_capable == 0)){
4449 card->stats.tx_dropped++;
4450 card->stats.tx_errors++;
4451 dev_kfree_skb_any(skb);
4452 return NETDEV_TX_OK;
4453 }
4454 queue = card->qdio.out_qs
4455 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4456
4457 if (skb_shinfo(skb)->tso_size)
4458 large_send = card->options.large_send;
4459
4460 /*are we able to do TSO ? If so ,prepare and send it from here */
4461 if ((large_send == QETH_LARGE_SEND_TSO) &&
4462 (cast_type == RTN_UNSPEC)) {
4463 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4464 if (rc) {
4465 card->stats.tx_dropped++;
4466 card->stats.tx_errors++;
4467 dev_kfree_skb_any(skb);
4468 return NETDEV_TX_OK;
4469 }
4470 elements_needed++;
4471 } else {
4472 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4473 QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4474 return rc;
4475 }
4476 if (card->info.type != QETH_CARD_TYPE_OSN)
4477 qeth_fill_header(card, hdr, skb, ipv, cast_type);
4478 }
4479
4480 if (large_send == QETH_LARGE_SEND_EDDP) {
4481 ctx = qeth_eddp_create_context(card, skb, hdr);
4482 if (ctx == NULL) {
4483 PRINT_WARN("could not create eddp context\n");
4484 return -EINVAL;
4485 }
4486 } else {
4487 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4488 elements_needed);
4489 if (!elems)
4490 return -EINVAL;
4491 elements_needed += elems;
4492 }
4493
4494 if (card->info.type != QETH_CARD_TYPE_IQD)
4495 rc = qeth_do_send_packet(card, queue, skb, hdr,
4496 elements_needed, ctx);
4497 else
4498 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4499 elements_needed, ctx);
4500 if (!rc){
4501 card->stats.tx_packets++;
4502 card->stats.tx_bytes += skb->len;
4503 #ifdef CONFIG_QETH_PERF_STATS
4504 if (skb_shinfo(skb)->tso_size &&
4505 !(large_send == QETH_LARGE_SEND_NO)) {
4506 card->perf_stats.large_send_bytes += skb->len;
4507 card->perf_stats.large_send_cnt++;
4508 }
4509 if (skb_shinfo(skb)->nr_frags > 0){
4510 card->perf_stats.sg_skbs_sent++;
4511 /* nr_frags + skb->data */
4512 card->perf_stats.sg_frags_sent +=
4513 skb_shinfo(skb)->nr_frags + 1;
4514 }
4515 #endif /* CONFIG_QETH_PERF_STATS */
4516 }
4517 if (ctx != NULL) {
4518 /* drop creator's reference */
4519 qeth_eddp_put_context(ctx);
4520 /* free skb; it's not referenced by a buffer */
4521 if (rc == 0)
4522 dev_kfree_skb_any(skb);
4523
4524 }
4525 return rc;
4526 }
4527
4528 static int
4529 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4530 {
4531 struct qeth_card *card = (struct qeth_card *) dev->priv;
4532 int rc = 0;
4533
4534 switch(regnum){
4535 case MII_BMCR: /* Basic mode control register */
4536 rc = BMCR_FULLDPLX;
4537 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4538 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4539 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4540 rc |= BMCR_SPEED100;
4541 break;
4542 case MII_BMSR: /* Basic mode status register */
4543 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4544 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4545 BMSR_100BASE4;
4546 break;
4547 case MII_PHYSID1: /* PHYS ID 1 */
4548 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4549 dev->dev_addr[2];
4550 rc = (rc >> 5) & 0xFFFF;
4551 break;
4552 case MII_PHYSID2: /* PHYS ID 2 */
4553 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4554 break;
4555 case MII_ADVERTISE: /* Advertisement control reg */
4556 rc = ADVERTISE_ALL;
4557 break;
4558 case MII_LPA: /* Link partner ability reg */
4559 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4560 LPA_100BASE4 | LPA_LPACK;
4561 break;
4562 case MII_EXPANSION: /* Expansion register */
4563 break;
4564 case MII_DCOUNTER: /* disconnect counter */
4565 break;
4566 case MII_FCSCOUNTER: /* false carrier counter */
4567 break;
4568 case MII_NWAYTEST: /* N-way auto-neg test register */
4569 break;
4570 case MII_RERRCOUNTER: /* rx error counter */
4571 rc = card->stats.rx_errors;
4572 break;
4573 case MII_SREVISION: /* silicon revision */
4574 break;
4575 case MII_RESV1: /* reserved 1 */
4576 break;
4577 case MII_LBRERROR: /* loopback, rx, bypass error */
4578 break;
4579 case MII_PHYADDR: /* physical address */
4580 break;
4581 case MII_RESV2: /* reserved 2 */
4582 break;
4583 case MII_TPISTATUS: /* TPI status for 10mbps */
4584 break;
4585 case MII_NCONFIG: /* network interface config */
4586 break;
4587 default:
4588 rc = 0;
4589 break;
4590 }
4591 return rc;
4592 }
4593
4594 static void
4595 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4596 {
4597 switch(regnum){
4598 case MII_BMCR: /* Basic mode control register */
4599 case MII_BMSR: /* Basic mode status register */
4600 case MII_PHYSID1: /* PHYS ID 1 */
4601 case MII_PHYSID2: /* PHYS ID 2 */
4602 case MII_ADVERTISE: /* Advertisement control reg */
4603 case MII_LPA: /* Link partner ability reg */
4604 case MII_EXPANSION: /* Expansion register */
4605 case MII_DCOUNTER: /* disconnect counter */
4606 case MII_FCSCOUNTER: /* false carrier counter */
4607 case MII_NWAYTEST: /* N-way auto-neg test register */
4608 case MII_RERRCOUNTER: /* rx error counter */
4609 case MII_SREVISION: /* silicon revision */
4610 case MII_RESV1: /* reserved 1 */
4611 case MII_LBRERROR: /* loopback, rx, bypass error */
4612 case MII_PHYADDR: /* physical address */
4613 case MII_RESV2: /* reserved 2 */
4614 case MII_TPISTATUS: /* TPI status for 10mbps */
4615 case MII_NCONFIG: /* network interface config */
4616 default:
4617 break;
4618 }
4619 }
4620
4621 static inline const char *
4622 qeth_arp_get_error_cause(int *rc)
4623 {
4624 switch (*rc) {
4625 case QETH_IPA_ARP_RC_FAILED:
4626 *rc = -EIO;
4627 return "operation failed";
4628 case QETH_IPA_ARP_RC_NOTSUPP:
4629 *rc = -EOPNOTSUPP;
4630 return "operation not supported";
4631 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4632 *rc = -EINVAL;
4633 return "argument out of range";
4634 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4635 *rc = -EOPNOTSUPP;
4636 return "query operation not supported";
4637 case QETH_IPA_ARP_RC_Q_NO_DATA:
4638 *rc = -ENOENT;
4639 return "no query data available";
4640 default:
4641 return "unknown error";
4642 }
4643 }
4644
4645 static int
4646 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4647 __u16, long);
4648
4649 static int
4650 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4651 {
4652 int tmp;
4653 int rc;
4654
4655 QETH_DBF_TEXT(trace,3,"arpstnoe");
4656
4657 /*
4658 * currently GuestLAN only supports the ARP assist function
4659 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4660 * thus we say EOPNOTSUPP for this ARP function
4661 */
4662 if (card->info.guestlan)
4663 return -EOPNOTSUPP;
4664 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4665 PRINT_WARN("ARP processing not supported "
4666 "on %s!\n", QETH_CARD_IFNAME(card));
4667 return -EOPNOTSUPP;
4668 }
4669 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4670 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4671 no_entries);
4672 if (rc) {
4673 tmp = rc;
4674 PRINT_WARN("Could not set number of ARP entries on %s: "
4675 "%s (0x%x/%d)\n",
4676 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4677 tmp, tmp);
4678 }
4679 return rc;
4680 }
4681
4682 static inline void
4683 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4684 struct qeth_arp_query_data *qdata,
4685 int entry_size, int uentry_size)
4686 {
4687 char *entry_ptr;
4688 char *uentry_ptr;
4689 int i;
4690
4691 entry_ptr = (char *)&qdata->data;
4692 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4693 for (i = 0; i < qdata->no_entries; ++i){
4694 /* strip off 32 bytes "media specific information" */
4695 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4696 entry_ptr += entry_size;
4697 uentry_ptr += uentry_size;
4698 }
4699 }
4700
4701 static int
4702 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4703 unsigned long data)
4704 {
4705 struct qeth_ipa_cmd *cmd;
4706 struct qeth_arp_query_data *qdata;
4707 struct qeth_arp_query_info *qinfo;
4708 int entry_size;
4709 int uentry_size;
4710 int i;
4711
4712 QETH_DBF_TEXT(trace,4,"arpquecb");
4713
4714 qinfo = (struct qeth_arp_query_info *) reply->param;
4715 cmd = (struct qeth_ipa_cmd *) data;
4716 if (cmd->hdr.return_code) {
4717 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4718 return 0;
4719 }
4720 if (cmd->data.setassparms.hdr.return_code) {
4721 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4722 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4723 return 0;
4724 }
4725 qdata = &cmd->data.setassparms.data.query_arp;
4726 switch(qdata->reply_bits){
4727 case 5:
4728 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4729 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4730 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4731 break;
4732 case 7:
4733 /* fall through to default */
4734 default:
4735 /* tr is the same as eth -> entry7 */
4736 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4737 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4738 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4739 break;
4740 }
4741 /* check if there is enough room in userspace */
4742 if ((qinfo->udata_len - qinfo->udata_offset) <
4743 qdata->no_entries * uentry_size){
4744 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4745 cmd->hdr.return_code = -ENOMEM;
4746 PRINT_WARN("query ARP user space buffer is too small for "
4747 "the returned number of ARP entries. "
4748 "Aborting query!\n");
4749 goto out_error;
4750 }
4751 QETH_DBF_TEXT_(trace, 4, "anore%i",
4752 cmd->data.setassparms.hdr.number_of_replies);
4753 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4754 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4755
4756 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4757 /* strip off "media specific information" */
4758 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4759 uentry_size);
4760 } else
4761 /*copy entries to user buffer*/
4762 memcpy(qinfo->udata + qinfo->udata_offset,
4763 (char *)&qdata->data, qdata->no_entries*uentry_size);
4764
4765 qinfo->no_entries += qdata->no_entries;
4766 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4767 /* check if all replies received ... */
4768 if (cmd->data.setassparms.hdr.seq_no <
4769 cmd->data.setassparms.hdr.number_of_replies)
4770 return 1;
4771 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4772 /* keep STRIP_ENTRIES flag so the user program can distinguish
4773 * stripped entries from normal ones */
4774 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4775 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4776 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4777 return 0;
4778 out_error:
4779 i = 0;
4780 memcpy(qinfo->udata, &i, 4);
4781 return 0;
4782 }
4783
4784 static int
4785 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4786 int len, int (*reply_cb)(struct qeth_card *,
4787 struct qeth_reply *,
4788 unsigned long),
4789 void *reply_param)
4790 {
4791 QETH_DBF_TEXT(trace,4,"sendarp");
4792
4793 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4794 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4795 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4796 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4797 reply_cb, reply_param);
4798 }
4799
4800 static int
4801 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4802 int len, int (*reply_cb)(struct qeth_card *,
4803 struct qeth_reply *,
4804 unsigned long),
4805 void *reply_param)
4806 {
4807 u16 s1, s2;
4808
4809 QETH_DBF_TEXT(trace,4,"sendsnmp");
4810
4811 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4812 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4813 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4814 /* adjust PDU length fields in IPA_PDU_HEADER */
4815 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4816 s2 = (u32) len;
4817 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4818 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4819 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4820 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4821 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4822 reply_cb, reply_param);
4823 }
4824
4825 static struct qeth_cmd_buffer *
4826 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4827 __u16, __u16, enum qeth_prot_versions);
4828 static int
4829 qeth_arp_query(struct qeth_card *card, char *udata)
4830 {
4831 struct qeth_cmd_buffer *iob;
4832 struct qeth_arp_query_info qinfo = {0, };
4833 int tmp;
4834 int rc;
4835
4836 QETH_DBF_TEXT(trace,3,"arpquery");
4837
4838 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4839 IPA_ARP_PROCESSING)) {
4840 PRINT_WARN("ARP processing not supported "
4841 "on %s!\n", QETH_CARD_IFNAME(card));
4842 return -EOPNOTSUPP;
4843 }
4844 /* get size of userspace buffer and mask_bits -> 6 bytes */
4845 if (copy_from_user(&qinfo, udata, 6))
4846 return -EFAULT;
4847 if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4848 return -ENOMEM;
4849 memset(qinfo.udata, 0, qinfo.udata_len);
4850 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4851 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4852 IPA_CMD_ASS_ARP_QUERY_INFO,
4853 sizeof(int),QETH_PROT_IPV4);
4854
4855 rc = qeth_send_ipa_arp_cmd(card, iob,
4856 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4857 qeth_arp_query_cb, (void *)&qinfo);
4858 if (rc) {
4859 tmp = rc;
4860 PRINT_WARN("Error while querying ARP cache on %s: %s "
4861 "(0x%x/%d)\n",
4862 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4863 tmp, tmp);
4864 copy_to_user(udata, qinfo.udata, 4);
4865 } else {
4866 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4867 }
4868 kfree(qinfo.udata);
4869 return rc;
4870 }
4871
4872 /**
4873 * SNMP command callback
4874 */
4875 static int
4876 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4877 unsigned long sdata)
4878 {
4879 struct qeth_ipa_cmd *cmd;
4880 struct qeth_arp_query_info *qinfo;
4881 struct qeth_snmp_cmd *snmp;
4882 unsigned char *data;
4883 __u16 data_len;
4884
4885 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4886
4887 cmd = (struct qeth_ipa_cmd *) sdata;
4888 data = (unsigned char *)((char *)cmd - reply->offset);
4889 qinfo = (struct qeth_arp_query_info *) reply->param;
4890 snmp = &cmd->data.setadapterparms.data.snmp;
4891
4892 if (cmd->hdr.return_code) {
4893 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4894 return 0;
4895 }
4896 if (cmd->data.setadapterparms.hdr.return_code) {
4897 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4898 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4899 return 0;
4900 }
4901 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4902 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4903 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4904 else
4905 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4906
4907 /* check if there is enough room in userspace */
4908 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4909 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4910 cmd->hdr.return_code = -ENOMEM;
4911 return 0;
4912 }
4913 QETH_DBF_TEXT_(trace, 4, "snore%i",
4914 cmd->data.setadapterparms.hdr.used_total);
4915 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4916 /*copy entries to user buffer*/
4917 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4918 memcpy(qinfo->udata + qinfo->udata_offset,
4919 (char *)snmp,
4920 data_len + offsetof(struct qeth_snmp_cmd,data));
4921 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4922 } else {
4923 memcpy(qinfo->udata + qinfo->udata_offset,
4924 (char *)&snmp->request, data_len);
4925 }
4926 qinfo->udata_offset += data_len;
4927 /* check if all replies received ... */
4928 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4929 cmd->data.setadapterparms.hdr.used_total);
4930 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4931 cmd->data.setadapterparms.hdr.seq_no);
4932 if (cmd->data.setadapterparms.hdr.seq_no <
4933 cmd->data.setadapterparms.hdr.used_total)
4934 return 1;
4935 return 0;
4936 }
4937
4938 static struct qeth_cmd_buffer *
4939 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4940 enum qeth_prot_versions );
4941
4942 static struct qeth_cmd_buffer *
4943 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4944 {
4945 struct qeth_cmd_buffer *iob;
4946 struct qeth_ipa_cmd *cmd;
4947
4948 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4949 QETH_PROT_IPV4);
4950 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4951 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4952 cmd->data.setadapterparms.hdr.command_code = command;
4953 cmd->data.setadapterparms.hdr.used_total = 1;
4954 cmd->data.setadapterparms.hdr.seq_no = 1;
4955
4956 return iob;
4957 }
4958
4959 /**
4960 * function to send SNMP commands to OSA-E card
4961 */
4962 static int
4963 qeth_snmp_command(struct qeth_card *card, char *udata)
4964 {
4965 struct qeth_cmd_buffer *iob;
4966 struct qeth_ipa_cmd *cmd;
4967 struct qeth_snmp_ureq *ureq;
4968 int req_len;
4969 struct qeth_arp_query_info qinfo = {0, };
4970 int rc = 0;
4971
4972 QETH_DBF_TEXT(trace,3,"snmpcmd");
4973
4974 if (card->info.guestlan)
4975 return -EOPNOTSUPP;
4976
4977 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4978 (!card->options.layer2) ) {
4979 PRINT_WARN("SNMP Query MIBS not supported "
4980 "on %s!\n", QETH_CARD_IFNAME(card));
4981 return -EOPNOTSUPP;
4982 }
4983 /* skip 4 bytes (data_len struct member) to get req_len */
4984 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4985 return -EFAULT;
4986 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4987 if (!ureq) {
4988 QETH_DBF_TEXT(trace, 2, "snmpnome");
4989 return -ENOMEM;
4990 }
4991 if (copy_from_user(ureq, udata,
4992 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4993 kfree(ureq);
4994 return -EFAULT;
4995 }
4996 qinfo.udata_len = ureq->hdr.data_len;
4997 if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4998 kfree(ureq);
4999 return -ENOMEM;
5000 }
5001 memset(qinfo.udata, 0, qinfo.udata_len);
5002 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5003
5004 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5005 QETH_SNMP_SETADP_CMDLENGTH + req_len);
5006 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5007 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5008 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5009 qeth_snmp_command_cb, (void *)&qinfo);
5010 if (rc)
5011 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5012 QETH_CARD_IFNAME(card), rc);
5013 else
5014 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
5015
5016 kfree(ureq);
5017 kfree(qinfo.udata);
5018 return rc;
5019 }
5020
5021 static int
5022 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5023 unsigned long);
5024
5025 static int
5026 qeth_default_setadapterparms_cb(struct qeth_card *card,
5027 struct qeth_reply *reply,
5028 unsigned long data);
5029 static int
5030 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5031 __u16, long,
5032 int (*reply_cb)
5033 (struct qeth_card *, struct qeth_reply *, unsigned long),
5034 void *reply_param);
5035
5036 static int
5037 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5038 {
5039 struct qeth_cmd_buffer *iob;
5040 char buf[16];
5041 int tmp;
5042 int rc;
5043
5044 QETH_DBF_TEXT(trace,3,"arpadent");
5045
5046 /*
5047 * currently GuestLAN only supports the ARP assist function
5048 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5049 * thus we say EOPNOTSUPP for this ARP function
5050 */
5051 if (card->info.guestlan)
5052 return -EOPNOTSUPP;
5053 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5054 PRINT_WARN("ARP processing not supported "
5055 "on %s!\n", QETH_CARD_IFNAME(card));
5056 return -EOPNOTSUPP;
5057 }
5058
5059 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5060 IPA_CMD_ASS_ARP_ADD_ENTRY,
5061 sizeof(struct qeth_arp_cache_entry),
5062 QETH_PROT_IPV4);
5063 rc = qeth_send_setassparms(card, iob,
5064 sizeof(struct qeth_arp_cache_entry),
5065 (unsigned long) entry,
5066 qeth_default_setassparms_cb, NULL);
5067 if (rc) {
5068 tmp = rc;
5069 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5070 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5071 "%s (0x%x/%d)\n",
5072 buf, QETH_CARD_IFNAME(card),
5073 qeth_arp_get_error_cause(&rc), tmp, tmp);
5074 }
5075 return rc;
5076 }
5077
5078 static int
5079 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5080 {
5081 struct qeth_cmd_buffer *iob;
5082 char buf[16] = {0, };
5083 int tmp;
5084 int rc;
5085
5086 QETH_DBF_TEXT(trace,3,"arprment");
5087
5088 /*
5089 * currently GuestLAN only supports the ARP assist function
5090 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5091 * thus we say EOPNOTSUPP for this ARP function
5092 */
5093 if (card->info.guestlan)
5094 return -EOPNOTSUPP;
5095 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5096 PRINT_WARN("ARP processing not supported "
5097 "on %s!\n", QETH_CARD_IFNAME(card));
5098 return -EOPNOTSUPP;
5099 }
5100 memcpy(buf, entry, 12);
5101 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5102 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5103 12,
5104 QETH_PROT_IPV4);
5105 rc = qeth_send_setassparms(card, iob,
5106 12, (unsigned long)buf,
5107 qeth_default_setassparms_cb, NULL);
5108 if (rc) {
5109 tmp = rc;
5110 memset(buf, 0, 16);
5111 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5112 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5113 "%s (0x%x/%d)\n",
5114 buf, QETH_CARD_IFNAME(card),
5115 qeth_arp_get_error_cause(&rc), tmp, tmp);
5116 }
5117 return rc;
5118 }
5119
5120 static int
5121 qeth_arp_flush_cache(struct qeth_card *card)
5122 {
5123 int rc;
5124 int tmp;
5125
5126 QETH_DBF_TEXT(trace,3,"arpflush");
5127
5128 /*
5129 * currently GuestLAN only supports the ARP assist function
5130 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5131 * thus we say EOPNOTSUPP for this ARP function
5132 */
5133 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5134 return -EOPNOTSUPP;
5135 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5136 PRINT_WARN("ARP processing not supported "
5137 "on %s!\n", QETH_CARD_IFNAME(card));
5138 return -EOPNOTSUPP;
5139 }
5140 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5141 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5142 if (rc){
5143 tmp = rc;
5144 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5145 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5146 tmp, tmp);
5147 }
5148 return rc;
5149 }
5150
5151 static int
5152 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5153 {
5154 struct qeth_card *card = (struct qeth_card *)dev->priv;
5155 struct qeth_arp_cache_entry arp_entry;
5156 struct mii_ioctl_data *mii_data;
5157 int rc = 0;
5158
5159 if (!card)
5160 return -ENODEV;
5161
5162 if ((card->state != CARD_STATE_UP) &&
5163 (card->state != CARD_STATE_SOFTSETUP))
5164 return -ENODEV;
5165
5166 if (card->info.type == QETH_CARD_TYPE_OSN)
5167 return -EPERM;
5168
5169 switch (cmd){
5170 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5171 if ( !capable(CAP_NET_ADMIN) ||
5172 (card->options.layer2) ) {
5173 rc = -EPERM;
5174 break;
5175 }
5176 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5177 break;
5178 case SIOC_QETH_ARP_QUERY_INFO:
5179 if ( !capable(CAP_NET_ADMIN) ||
5180 (card->options.layer2) ) {
5181 rc = -EPERM;
5182 break;
5183 }
5184 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5185 break;
5186 case SIOC_QETH_ARP_ADD_ENTRY:
5187 if ( !capable(CAP_NET_ADMIN) ||
5188 (card->options.layer2) ) {
5189 rc = -EPERM;
5190 break;
5191 }
5192 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5193 sizeof(struct qeth_arp_cache_entry)))
5194 rc = -EFAULT;
5195 else
5196 rc = qeth_arp_add_entry(card, &arp_entry);
5197 break;
5198 case SIOC_QETH_ARP_REMOVE_ENTRY:
5199 if ( !capable(CAP_NET_ADMIN) ||
5200 (card->options.layer2) ) {
5201 rc = -EPERM;
5202 break;
5203 }
5204 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5205 sizeof(struct qeth_arp_cache_entry)))
5206 rc = -EFAULT;
5207 else
5208 rc = qeth_arp_remove_entry(card, &arp_entry);
5209 break;
5210 case SIOC_QETH_ARP_FLUSH_CACHE:
5211 if ( !capable(CAP_NET_ADMIN) ||
5212 (card->options.layer2) ) {
5213 rc = -EPERM;
5214 break;
5215 }
5216 rc = qeth_arp_flush_cache(card);
5217 break;
5218 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5219 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5220 break;
5221 case SIOC_QETH_GET_CARD_TYPE:
5222 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5223 !card->info.guestlan)
5224 return 1;
5225 return 0;
5226 break;
5227 case SIOCGMIIPHY:
5228 mii_data = if_mii(rq);
5229 mii_data->phy_id = 0;
5230 break;
5231 case SIOCGMIIREG:
5232 mii_data = if_mii(rq);
5233 if (mii_data->phy_id != 0)
5234 rc = -EINVAL;
5235 else
5236 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5237 mii_data->reg_num);
5238 break;
5239 case SIOCSMIIREG:
5240 rc = -EOPNOTSUPP;
5241 break;
5242 /* TODO: remove return if qeth_mdio_write does something */
5243 if (!capable(CAP_NET_ADMIN)){
5244 rc = -EPERM;
5245 break;
5246 }
5247 mii_data = if_mii(rq);
5248 if (mii_data->phy_id != 0)
5249 rc = -EINVAL;
5250 else
5251 qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5252 mii_data->val_in);
5253 break;
5254 default:
5255 rc = -EOPNOTSUPP;
5256 }
5257 if (rc)
5258 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5259 return rc;
5260 }
5261
5262 static struct net_device_stats *
5263 qeth_get_stats(struct net_device *dev)
5264 {
5265 struct qeth_card *card;
5266
5267 card = (struct qeth_card *) (dev->priv);
5268
5269 QETH_DBF_TEXT(trace,5,"getstat");
5270
5271 return &card->stats;
5272 }
5273
5274 static int
5275 qeth_change_mtu(struct net_device *dev, int new_mtu)
5276 {
5277 struct qeth_card *card;
5278 char dbf_text[15];
5279
5280 card = (struct qeth_card *) (dev->priv);
5281
5282 QETH_DBF_TEXT(trace,4,"chgmtu");
5283 sprintf(dbf_text, "%8x", new_mtu);
5284 QETH_DBF_TEXT(trace,4,dbf_text);
5285
5286 if (new_mtu < 64)
5287 return -EINVAL;
5288 if (new_mtu > 65535)
5289 return -EINVAL;
5290 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5291 (!qeth_mtu_is_valid(card, new_mtu)))
5292 return -EINVAL;
5293 dev->mtu = new_mtu;
5294 return 0;
5295 }
5296
5297 #ifdef CONFIG_QETH_VLAN
5298 static void
5299 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5300 {
5301 struct qeth_card *card;
5302 unsigned long flags;
5303
5304 QETH_DBF_TEXT(trace,4,"vlanreg");
5305
5306 card = (struct qeth_card *) dev->priv;
5307 spin_lock_irqsave(&card->vlanlock, flags);
5308 card->vlangrp = grp;
5309 spin_unlock_irqrestore(&card->vlanlock, flags);
5310 }
5311
5312 static inline void
5313 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5314 unsigned short vid)
5315 {
5316 int i;
5317 struct sk_buff *skb;
5318 struct sk_buff_head tmp_list;
5319
5320 skb_queue_head_init(&tmp_list);
5321 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5322 while ((skb = skb_dequeue(&buf->skb_list))){
5323 if (vlan_tx_tag_present(skb) &&
5324 (vlan_tx_tag_get(skb) == vid)) {
5325 atomic_dec(&skb->users);
5326 dev_kfree_skb(skb);
5327 } else
5328 skb_queue_tail(&tmp_list, skb);
5329 }
5330 }
5331 while ((skb = skb_dequeue(&tmp_list)))
5332 skb_queue_tail(&buf->skb_list, skb);
5333 }
5334
5335 static void
5336 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5337 {
5338 int i, j;
5339
5340 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5341 for (i = 0; i < card->qdio.no_out_queues; ++i){
5342 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5343 qeth_free_vlan_buffer(card, &card->qdio.
5344 out_qs[i]->bufs[j], vid);
5345 }
5346 }
5347
5348 static void
5349 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5350 {
5351 struct in_device *in_dev;
5352 struct in_ifaddr *ifa;
5353 struct qeth_ipaddr *addr;
5354
5355 QETH_DBF_TEXT(trace, 4, "frvaddr4");
5356
5357 rcu_read_lock();
5358 in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5359 if (!in_dev)
5360 goto out;
5361 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5362 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5363 if (addr){
5364 addr->u.a4.addr = ifa->ifa_address;
5365 addr->u.a4.mask = ifa->ifa_mask;
5366 addr->type = QETH_IP_TYPE_NORMAL;
5367 if (!qeth_delete_ip(card, addr))
5368 kfree(addr);
5369 }
5370 }
5371 out:
5372 rcu_read_unlock();
5373 }
5374
5375 static void
5376 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5377 {
5378 #ifdef CONFIG_QETH_IPV6
5379 struct inet6_dev *in6_dev;
5380 struct inet6_ifaddr *ifa;
5381 struct qeth_ipaddr *addr;
5382
5383 QETH_DBF_TEXT(trace, 4, "frvaddr6");
5384
5385 in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5386 if (!in6_dev)
5387 return;
5388 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5389 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5390 if (addr){
5391 memcpy(&addr->u.a6.addr, &ifa->addr,
5392 sizeof(struct in6_addr));
5393 addr->u.a6.pfxlen = ifa->prefix_len;
5394 addr->type = QETH_IP_TYPE_NORMAL;
5395 if (!qeth_delete_ip(card, addr))
5396 kfree(addr);
5397 }
5398 }
5399 in6_dev_put(in6_dev);
5400 #endif /* CONFIG_QETH_IPV6 */
5401 }
5402
5403 static void
5404 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5405 {
5406 if (card->options.layer2 || !card->vlangrp)
5407 return;
5408 qeth_free_vlan_addresses4(card, vid);
5409 qeth_free_vlan_addresses6(card, vid);
5410 }
5411
5412 static int
5413 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5414 struct qeth_reply *reply,
5415 unsigned long data)
5416 {
5417 struct qeth_ipa_cmd *cmd;
5418
5419 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5420 cmd = (struct qeth_ipa_cmd *) data;
5421 if (cmd->hdr.return_code) {
5422 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5423 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5424 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5425 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5426 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5427 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5428 }
5429 return 0;
5430 }
5431
5432 static int
5433 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5434 enum qeth_ipa_cmds ipacmd)
5435 {
5436 struct qeth_ipa_cmd *cmd;
5437 struct qeth_cmd_buffer *iob;
5438
5439 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5440 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5441 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5442 cmd->data.setdelvlan.vlan_id = i;
5443 return qeth_send_ipa_cmd(card, iob,
5444 qeth_layer2_send_setdelvlan_cb, NULL);
5445 }
5446
5447 static void
5448 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5449 {
5450 unsigned short i;
5451
5452 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5453
5454 if (!card->vlangrp)
5455 return;
5456 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5457 if (card->vlangrp->vlan_devices[i] == NULL)
5458 continue;
5459 if (clear)
5460 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5461 else
5462 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5463 }
5464 }
5465
5466 /*add_vid is layer 2 used only ....*/
5467 static void
5468 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5469 {
5470 struct qeth_card *card;
5471
5472 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5473
5474 card = (struct qeth_card *) dev->priv;
5475 if (!card->options.layer2)
5476 return;
5477 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5478 }
5479
5480 /*... kill_vid used for both modes*/
5481 static void
5482 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5483 {
5484 struct qeth_card *card;
5485 unsigned long flags;
5486
5487 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5488
5489 card = (struct qeth_card *) dev->priv;
5490 /* free all skbs for the vlan device */
5491 qeth_free_vlan_skbs(card, vid);
5492 spin_lock_irqsave(&card->vlanlock, flags);
5493 /* unregister IP addresses of vlan device */
5494 qeth_free_vlan_addresses(card, vid);
5495 if (card->vlangrp)
5496 card->vlangrp->vlan_devices[vid] = NULL;
5497 spin_unlock_irqrestore(&card->vlanlock, flags);
5498 if (card->options.layer2)
5499 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5500 qeth_set_multicast_list(card->dev);
5501 }
5502 #endif
5503 /**
5504 * Examine hardware response to SET_PROMISC_MODE
5505 */
5506 static int
5507 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5508 struct qeth_reply *reply,
5509 unsigned long data)
5510 {
5511 struct qeth_ipa_cmd *cmd;
5512 struct qeth_ipacmd_setadpparms *setparms;
5513
5514 QETH_DBF_TEXT(trace,4,"prmadpcb");
5515
5516 cmd = (struct qeth_ipa_cmd *) data;
5517 setparms = &(cmd->data.setadapterparms);
5518
5519 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5520 if (cmd->hdr.return_code) {
5521 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5522 setparms->data.mode = SET_PROMISC_MODE_OFF;
5523 }
5524 card->info.promisc_mode = setparms->data.mode;
5525 return 0;
5526 }
5527 /*
5528 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5529 */
5530 static void
5531 qeth_setadp_promisc_mode(struct qeth_card *card)
5532 {
5533 enum qeth_ipa_promisc_modes mode;
5534 struct net_device *dev = card->dev;
5535 struct qeth_cmd_buffer *iob;
5536 struct qeth_ipa_cmd *cmd;
5537
5538 QETH_DBF_TEXT(trace, 4, "setprom");
5539
5540 if (((dev->flags & IFF_PROMISC) &&
5541 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5542 (!(dev->flags & IFF_PROMISC) &&
5543 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5544 return;
5545 mode = SET_PROMISC_MODE_OFF;
5546 if (dev->flags & IFF_PROMISC)
5547 mode = SET_PROMISC_MODE_ON;
5548 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5549
5550 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5551 sizeof(struct qeth_ipacmd_setadpparms));
5552 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5553 cmd->data.setadapterparms.data.mode = mode;
5554 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5555 }
5556
5557 /**
5558 * set multicast address on card
5559 */
5560 static void
5561 qeth_set_multicast_list(struct net_device *dev)
5562 {
5563 struct qeth_card *card = (struct qeth_card *) dev->priv;
5564
5565 if (card->info.type == QETH_CARD_TYPE_OSN)
5566 return ;
5567
5568 QETH_DBF_TEXT(trace,3,"setmulti");
5569 qeth_delete_mc_addresses(card);
5570 if (card->options.layer2) {
5571 qeth_layer2_add_multicast(card);
5572 goto out;
5573 }
5574 qeth_add_multicast_ipv4(card);
5575 #ifdef CONFIG_QETH_IPV6
5576 qeth_add_multicast_ipv6(card);
5577 #endif
5578 out:
5579 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5580 schedule_work(&card->kernel_thread_starter);
5581 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5582 return;
5583 if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5584 schedule_work(&card->kernel_thread_starter);
5585
5586 }
5587
5588 static int
5589 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5590 {
5591 return 0;
5592 }
5593
5594 static void
5595 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5596 {
5597 if (dev->type == ARPHRD_IEEE802_TR)
5598 ip_tr_mc_map(ipm, mac);
5599 else
5600 ip_eth_mc_map(ipm, mac);
5601 }
5602
5603 static struct qeth_ipaddr *
5604 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5605 {
5606 struct qeth_ipaddr *addr;
5607
5608 addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5609 if (addr == NULL) {
5610 PRINT_WARN("Not enough memory to add address\n");
5611 return NULL;
5612 }
5613 memset(addr,0,sizeof(struct qeth_ipaddr));
5614 addr->type = QETH_IP_TYPE_NORMAL;
5615 addr->proto = prot;
5616 return addr;
5617 }
5618
5619 int
5620 qeth_osn_assist(struct net_device *dev,
5621 void *data,
5622 int data_len)
5623 {
5624 struct qeth_cmd_buffer *iob;
5625 struct qeth_card *card;
5626 int rc;
5627
5628 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5629 if (!dev)
5630 return -ENODEV;
5631 card = (struct qeth_card *)dev->priv;
5632 if (!card)
5633 return -ENODEV;
5634 if ((card->state != CARD_STATE_UP) &&
5635 (card->state != CARD_STATE_SOFTSETUP))
5636 return -ENODEV;
5637 iob = qeth_wait_for_buffer(&card->write);
5638 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5639 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5640 return rc;
5641 }
5642
5643 static struct net_device *
5644 qeth_netdev_by_devno(unsigned char *read_dev_no)
5645 {
5646 struct qeth_card *card;
5647 struct net_device *ndev;
5648 unsigned char *readno;
5649 __u16 temp_dev_no, card_dev_no;
5650 char *endp;
5651 unsigned long flags;
5652
5653 ndev = NULL;
5654 memcpy(&temp_dev_no, read_dev_no, 2);
5655 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5656 list_for_each_entry(card, &qeth_card_list.list, list) {
5657 readno = CARD_RDEV_ID(card);
5658 readno += (strlen(readno) - 4);
5659 card_dev_no = simple_strtoul(readno, &endp, 16);
5660 if (card_dev_no == temp_dev_no) {
5661 ndev = card->dev;
5662 break;
5663 }
5664 }
5665 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5666 return ndev;
5667 }
5668
5669 int
5670 qeth_osn_register(unsigned char *read_dev_no,
5671 struct net_device **dev,
5672 int (*assist_cb)(struct net_device *, void *),
5673 int (*data_cb)(struct sk_buff *))
5674 {
5675 struct qeth_card * card;
5676
5677 QETH_DBF_TEXT(trace, 2, "osnreg");
5678 *dev = qeth_netdev_by_devno(read_dev_no);
5679 if (*dev == NULL)
5680 return -ENODEV;
5681 card = (struct qeth_card *)(*dev)->priv;
5682 if (!card)
5683 return -ENODEV;
5684 if ((assist_cb == NULL) || (data_cb == NULL))
5685 return -EINVAL;
5686 card->osn_info.assist_cb = assist_cb;
5687 card->osn_info.data_cb = data_cb;
5688 return 0;
5689 }
5690
5691 void
5692 qeth_osn_deregister(struct net_device * dev)
5693 {
5694 struct qeth_card *card;
5695
5696 QETH_DBF_TEXT(trace, 2, "osndereg");
5697 if (!dev)
5698 return;
5699 card = (struct qeth_card *)dev->priv;
5700 if (!card)
5701 return;
5702 card->osn_info.assist_cb = NULL;
5703 card->osn_info.data_cb = NULL;
5704 return;
5705 }
5706
5707 static void
5708 qeth_delete_mc_addresses(struct qeth_card *card)
5709 {
5710 struct qeth_ipaddr *iptodo;
5711 unsigned long flags;
5712
5713 QETH_DBF_TEXT(trace,4,"delmc");
5714 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5715 if (!iptodo) {
5716 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5717 return;
5718 }
5719 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5720 spin_lock_irqsave(&card->ip_lock, flags);
5721 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5722 kfree(iptodo);
5723 spin_unlock_irqrestore(&card->ip_lock, flags);
5724 }
5725
5726 static inline void
5727 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5728 {
5729 struct qeth_ipaddr *ipm;
5730 struct ip_mc_list *im4;
5731 char buf[MAX_ADDR_LEN];
5732
5733 QETH_DBF_TEXT(trace,4,"addmc");
5734 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5735 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5736 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5737 if (!ipm)
5738 continue;
5739 ipm->u.a4.addr = im4->multiaddr;
5740 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5741 ipm->is_multicast = 1;
5742 if (!qeth_add_ip(card,ipm))
5743 kfree(ipm);
5744 }
5745 }
5746
5747 static inline void
5748 qeth_add_vlan_mc(struct qeth_card *card)
5749 {
5750 #ifdef CONFIG_QETH_VLAN
5751 struct in_device *in_dev;
5752 struct vlan_group *vg;
5753 int i;
5754
5755 QETH_DBF_TEXT(trace,4,"addmcvl");
5756 if ( ((card->options.layer2 == 0) &&
5757 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5758 (card->vlangrp == NULL) )
5759 return ;
5760
5761 vg = card->vlangrp;
5762 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5763 if (vg->vlan_devices[i] == NULL ||
5764 !(vg->vlan_devices[i]->flags & IFF_UP))
5765 continue;
5766 in_dev = in_dev_get(vg->vlan_devices[i]);
5767 if (!in_dev)
5768 continue;
5769 read_lock(&in_dev->mc_list_lock);
5770 qeth_add_mc(card,in_dev);
5771 read_unlock(&in_dev->mc_list_lock);
5772 in_dev_put(in_dev);
5773 }
5774 #endif
5775 }
5776
5777 static void
5778 qeth_add_multicast_ipv4(struct qeth_card *card)
5779 {
5780 struct in_device *in4_dev;
5781
5782 QETH_DBF_TEXT(trace,4,"chkmcv4");
5783 in4_dev = in_dev_get(card->dev);
5784 if (in4_dev == NULL)
5785 return;
5786 read_lock(&in4_dev->mc_list_lock);
5787 qeth_add_mc(card, in4_dev);
5788 qeth_add_vlan_mc(card);
5789 read_unlock(&in4_dev->mc_list_lock);
5790 in_dev_put(in4_dev);
5791 }
5792
5793 static void
5794 qeth_layer2_add_multicast(struct qeth_card *card)
5795 {
5796 struct qeth_ipaddr *ipm;
5797 struct dev_mc_list *dm;
5798
5799 QETH_DBF_TEXT(trace,4,"L2addmc");
5800 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5801 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5802 if (!ipm)
5803 continue;
5804 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5805 ipm->is_multicast = 1;
5806 if (!qeth_add_ip(card, ipm))
5807 kfree(ipm);
5808 }
5809 }
5810
5811 #ifdef CONFIG_QETH_IPV6
5812 static inline void
5813 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5814 {
5815 struct qeth_ipaddr *ipm;
5816 struct ifmcaddr6 *im6;
5817 char buf[MAX_ADDR_LEN];
5818
5819 QETH_DBF_TEXT(trace,4,"addmc6");
5820 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5821 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5822 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5823 if (!ipm)
5824 continue;
5825 ipm->is_multicast = 1;
5826 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5827 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5828 sizeof(struct in6_addr));
5829 if (!qeth_add_ip(card,ipm))
5830 kfree(ipm);
5831 }
5832 }
5833
5834 static inline void
5835 qeth_add_vlan_mc6(struct qeth_card *card)
5836 {
5837 #ifdef CONFIG_QETH_VLAN
5838 struct inet6_dev *in_dev;
5839 struct vlan_group *vg;
5840 int i;
5841
5842 QETH_DBF_TEXT(trace,4,"admc6vl");
5843 if ( ((card->options.layer2 == 0) &&
5844 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5845 (card->vlangrp == NULL))
5846 return ;
5847
5848 vg = card->vlangrp;
5849 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5850 if (vg->vlan_devices[i] == NULL ||
5851 !(vg->vlan_devices[i]->flags & IFF_UP))
5852 continue;
5853 in_dev = in6_dev_get(vg->vlan_devices[i]);
5854 if (!in_dev)
5855 continue;
5856 read_lock(&in_dev->lock);
5857 qeth_add_mc6(card,in_dev);
5858 read_unlock(&in_dev->lock);
5859 in6_dev_put(in_dev);
5860 }
5861 #endif /* CONFIG_QETH_VLAN */
5862 }
5863
5864 static void
5865 qeth_add_multicast_ipv6(struct qeth_card *card)
5866 {
5867 struct inet6_dev *in6_dev;
5868
5869 QETH_DBF_TEXT(trace,4,"chkmcv6");
5870 if (!qeth_is_supported(card, IPA_IPV6))
5871 return ;
5872 in6_dev = in6_dev_get(card->dev);
5873 if (in6_dev == NULL)
5874 return;
5875 read_lock(&in6_dev->lock);
5876 qeth_add_mc6(card, in6_dev);
5877 qeth_add_vlan_mc6(card);
5878 read_unlock(&in6_dev->lock);
5879 in6_dev_put(in6_dev);
5880 }
5881 #endif /* CONFIG_QETH_IPV6 */
5882
5883 static int
5884 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5885 enum qeth_ipa_cmds ipacmd,
5886 int (*reply_cb) (struct qeth_card *,
5887 struct qeth_reply*,
5888 unsigned long))
5889 {
5890 struct qeth_ipa_cmd *cmd;
5891 struct qeth_cmd_buffer *iob;
5892
5893 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5894 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5895 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5896 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5897 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5898 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5899 }
5900
5901 static int
5902 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5903 struct qeth_reply *reply,
5904 unsigned long data)
5905 {
5906 struct qeth_ipa_cmd *cmd;
5907 __u8 *mac;
5908
5909 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5910 cmd = (struct qeth_ipa_cmd *) data;
5911 mac = &cmd->data.setdelmac.mac[0];
5912 /* MAC already registered, needed in couple/uncouple case */
5913 if (cmd->hdr.return_code == 0x2005) {
5914 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5915 "already existing on %s \n",
5916 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5917 QETH_CARD_IFNAME(card));
5918 cmd->hdr.return_code = 0;
5919 }
5920 if (cmd->hdr.return_code)
5921 PRINT_ERR("Could not set group MAC " \
5922 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5923 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5924 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5925 return 0;
5926 }
5927
5928 static int
5929 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5930 {
5931 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5932 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5933 qeth_layer2_send_setgroupmac_cb);
5934 }
5935
5936 static int
5937 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5938 struct qeth_reply *reply,
5939 unsigned long data)
5940 {
5941 struct qeth_ipa_cmd *cmd;
5942 __u8 *mac;
5943
5944 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5945 cmd = (struct qeth_ipa_cmd *) data;
5946 mac = &cmd->data.setdelmac.mac[0];
5947 if (cmd->hdr.return_code)
5948 PRINT_ERR("Could not delete group MAC " \
5949 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5950 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5951 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5952 return 0;
5953 }
5954
5955 static int
5956 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5957 {
5958 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5959 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5960 qeth_layer2_send_delgroupmac_cb);
5961 }
5962
5963 static int
5964 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5965 struct qeth_reply *reply,
5966 unsigned long data)
5967 {
5968 struct qeth_ipa_cmd *cmd;
5969
5970 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5971 cmd = (struct qeth_ipa_cmd *) data;
5972 if (cmd->hdr.return_code) {
5973 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5974 PRINT_WARN("Error in registering MAC address on " \
5975 "device %s: x%x\n", CARD_BUS_ID(card),
5976 cmd->hdr.return_code);
5977 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5978 cmd->hdr.return_code = -EIO;
5979 } else {
5980 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5981 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5982 OSA_ADDR_LEN);
5983 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5984 "successfully registered on device %s\n",
5985 card->dev->dev_addr[0], card->dev->dev_addr[1],
5986 card->dev->dev_addr[2], card->dev->dev_addr[3],
5987 card->dev->dev_addr[4], card->dev->dev_addr[5],
5988 card->dev->name);
5989 }
5990 return 0;
5991 }
5992
5993 static int
5994 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5995 {
5996 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5997 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5998 qeth_layer2_send_setmac_cb);
5999 }
6000
6001 static int
6002 qeth_layer2_send_delmac_cb(struct qeth_card *card,
6003 struct qeth_reply *reply,
6004 unsigned long data)
6005 {
6006 struct qeth_ipa_cmd *cmd;
6007
6008 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6009 cmd = (struct qeth_ipa_cmd *) data;
6010 if (cmd->hdr.return_code) {
6011 PRINT_WARN("Error in deregistering MAC address on " \
6012 "device %s: x%x\n", CARD_BUS_ID(card),
6013 cmd->hdr.return_code);
6014 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6015 cmd->hdr.return_code = -EIO;
6016 return 0;
6017 }
6018 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6019
6020 return 0;
6021 }
6022 static int
6023 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6024 {
6025 QETH_DBF_TEXT(trace, 2, "L2Delmac");
6026 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6027 return 0;
6028 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6029 qeth_layer2_send_delmac_cb);
6030 }
6031
6032 static int
6033 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6034 {
6035 struct sockaddr *addr = p;
6036 struct qeth_card *card;
6037 int rc = 0;
6038
6039 QETH_DBF_TEXT(trace, 3, "setmac");
6040
6041 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6042 QETH_DBF_TEXT(trace, 3, "setmcINV");
6043 return -EOPNOTSUPP;
6044 }
6045 card = (struct qeth_card *) dev->priv;
6046
6047 if (!card->options.layer2) {
6048 PRINT_WARN("Setting MAC address on %s is not supported "
6049 "in Layer 3 mode.\n", dev->name);
6050 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6051 return -EOPNOTSUPP;
6052 }
6053 if (card->info.type == QETH_CARD_TYPE_OSN) {
6054 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6055 dev->name);
6056 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6057 return -EOPNOTSUPP;
6058 }
6059 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6060 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6061 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6062 if (!rc)
6063 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6064 return rc;
6065 }
6066
6067 static void
6068 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6069 __u8 command, enum qeth_prot_versions prot)
6070 {
6071 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6072 cmd->hdr.command = command;
6073 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6074 cmd->hdr.seqno = card->seqno.ipa;
6075 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6076 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6077 if (card->options.layer2)
6078 cmd->hdr.prim_version_no = 2;
6079 else
6080 cmd->hdr.prim_version_no = 1;
6081 cmd->hdr.param_count = 1;
6082 cmd->hdr.prot_version = prot;
6083 cmd->hdr.ipa_supported = 0;
6084 cmd->hdr.ipa_enabled = 0;
6085 }
6086
6087 static struct qeth_cmd_buffer *
6088 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6089 enum qeth_prot_versions prot)
6090 {
6091 struct qeth_cmd_buffer *iob;
6092 struct qeth_ipa_cmd *cmd;
6093
6094 iob = qeth_wait_for_buffer(&card->write);
6095 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6096 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6097
6098 return iob;
6099 }
6100
6101 static int
6102 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6103 {
6104 int rc;
6105 struct qeth_cmd_buffer *iob;
6106 struct qeth_ipa_cmd *cmd;
6107
6108 QETH_DBF_TEXT(trace,4,"setdelmc");
6109
6110 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6111 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6112 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6113 if (addr->proto == QETH_PROT_IPV6)
6114 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6115 sizeof(struct in6_addr));
6116 else
6117 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6118
6119 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6120
6121 return rc;
6122 }
6123 static inline void
6124 qeth_fill_netmask(u8 *netmask, unsigned int len)
6125 {
6126 int i,j;
6127 for (i=0;i<16;i++) {
6128 j=(len)-(i*8);
6129 if (j >= 8)
6130 netmask[i] = 0xff;
6131 else if (j > 0)
6132 netmask[i] = (u8)(0xFF00>>j);
6133 else
6134 netmask[i] = 0;
6135 }
6136 }
6137
6138 static int
6139 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6140 int ipacmd, unsigned int flags)
6141 {
6142 int rc;
6143 struct qeth_cmd_buffer *iob;
6144 struct qeth_ipa_cmd *cmd;
6145 __u8 netmask[16];
6146
6147 QETH_DBF_TEXT(trace,4,"setdelip");
6148 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6149
6150 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6151 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6152 if (addr->proto == QETH_PROT_IPV6) {
6153 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6154 sizeof(struct in6_addr));
6155 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6156 memcpy(cmd->data.setdelip6.mask, netmask,
6157 sizeof(struct in6_addr));
6158 cmd->data.setdelip6.flags = flags;
6159 } else {
6160 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6161 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6162 cmd->data.setdelip4.flags = flags;
6163 }
6164
6165 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6166
6167 return rc;
6168 }
6169
6170 static int
6171 qeth_layer2_register_addr_entry(struct qeth_card *card,
6172 struct qeth_ipaddr *addr)
6173 {
6174 if (!addr->is_multicast)
6175 return 0;
6176 QETH_DBF_TEXT(trace, 2, "setgmac");
6177 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6178 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6179 }
6180
6181 static int
6182 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6183 struct qeth_ipaddr *addr)
6184 {
6185 if (!addr->is_multicast)
6186 return 0;
6187 QETH_DBF_TEXT(trace, 2, "delgmac");
6188 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6189 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6190 }
6191
6192 static int
6193 qeth_layer3_register_addr_entry(struct qeth_card *card,
6194 struct qeth_ipaddr *addr)
6195 {
6196 char buf[50];
6197 int rc;
6198 int cnt = 3;
6199
6200 if (addr->proto == QETH_PROT_IPV4) {
6201 QETH_DBF_TEXT(trace, 2,"setaddr4");
6202 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6203 } else if (addr->proto == QETH_PROT_IPV6) {
6204 QETH_DBF_TEXT(trace, 2, "setaddr6");
6205 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6206 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6207 } else {
6208 QETH_DBF_TEXT(trace, 2, "setaddr?");
6209 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6210 }
6211 do {
6212 if (addr->is_multicast)
6213 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6214 else
6215 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6216 addr->set_flags);
6217 if (rc)
6218 QETH_DBF_TEXT(trace, 2, "failed");
6219 } while ((--cnt > 0) && rc);
6220 if (rc){
6221 QETH_DBF_TEXT(trace, 2, "FAILED");
6222 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6223 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6224 buf, rc, rc);
6225 }
6226 return rc;
6227 }
6228
6229 static int
6230 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6231 struct qeth_ipaddr *addr)
6232 {
6233 //char buf[50];
6234 int rc;
6235
6236 if (addr->proto == QETH_PROT_IPV4) {
6237 QETH_DBF_TEXT(trace, 2,"deladdr4");
6238 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6239 } else if (addr->proto == QETH_PROT_IPV6) {
6240 QETH_DBF_TEXT(trace, 2, "deladdr6");
6241 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6242 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6243 } else {
6244 QETH_DBF_TEXT(trace, 2, "deladdr?");
6245 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6246 }
6247 if (addr->is_multicast)
6248 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6249 else
6250 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6251 addr->del_flags);
6252 if (rc) {
6253 QETH_DBF_TEXT(trace, 2, "failed");
6254 /* TODO: re-activate this warning as soon as we have a
6255 * clean mirco code
6256 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6257 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6258 buf, rc);
6259 */
6260 }
6261 return rc;
6262 }
6263
6264 static int
6265 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6266 {
6267 if (card->options.layer2)
6268 return qeth_layer2_register_addr_entry(card, addr);
6269
6270 return qeth_layer3_register_addr_entry(card, addr);
6271 }
6272
6273 static int
6274 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6275 {
6276 if (card->options.layer2)
6277 return qeth_layer2_deregister_addr_entry(card, addr);
6278
6279 return qeth_layer3_deregister_addr_entry(card, addr);
6280 }
6281
6282 static u32
6283 qeth_ethtool_get_tx_csum(struct net_device *dev)
6284 {
6285 /* We may need to say that we support tx csum offload if
6286 * we do EDDP or TSO. There are discussions going on to
6287 * enforce rules in the stack and in ethtool that make
6288 * SG and TSO depend on HW_CSUM. At the moment there are
6289 * no such rules....
6290 * If we say yes here, we have to checksum outbound packets
6291 * any time. */
6292 return 0;
6293 }
6294
6295 static int
6296 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6297 {
6298 return -EINVAL;
6299 }
6300
6301 static u32
6302 qeth_ethtool_get_rx_csum(struct net_device *dev)
6303 {
6304 struct qeth_card *card = (struct qeth_card *)dev->priv;
6305
6306 return (card->options.checksum_type == HW_CHECKSUMMING);
6307 }
6308
6309 static int
6310 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6311 {
6312 struct qeth_card *card = (struct qeth_card *)dev->priv;
6313
6314 if ((card->state != CARD_STATE_DOWN) &&
6315 (card->state != CARD_STATE_RECOVER))
6316 return -EPERM;
6317 if (data)
6318 card->options.checksum_type = HW_CHECKSUMMING;
6319 else
6320 card->options.checksum_type = SW_CHECKSUMMING;
6321 return 0;
6322 }
6323
6324 static u32
6325 qeth_ethtool_get_sg(struct net_device *dev)
6326 {
6327 struct qeth_card *card = (struct qeth_card *)dev->priv;
6328
6329 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6330 (dev->features & NETIF_F_SG));
6331 }
6332
6333 static int
6334 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6335 {
6336 struct qeth_card *card = (struct qeth_card *)dev->priv;
6337
6338 if (data) {
6339 if (card->options.large_send != QETH_LARGE_SEND_NO)
6340 dev->features |= NETIF_F_SG;
6341 else {
6342 dev->features &= ~NETIF_F_SG;
6343 return -EINVAL;
6344 }
6345 } else
6346 dev->features &= ~NETIF_F_SG;
6347 return 0;
6348 }
6349
6350 static u32
6351 qeth_ethtool_get_tso(struct net_device *dev)
6352 {
6353 struct qeth_card *card = (struct qeth_card *)dev->priv;
6354
6355 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6356 (dev->features & NETIF_F_TSO));
6357 }
6358
6359 static int
6360 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6361 {
6362 struct qeth_card *card = (struct qeth_card *)dev->priv;
6363
6364 if (data) {
6365 if (card->options.large_send != QETH_LARGE_SEND_NO)
6366 dev->features |= NETIF_F_TSO;
6367 else {
6368 dev->features &= ~NETIF_F_TSO;
6369 return -EINVAL;
6370 }
6371 } else
6372 dev->features &= ~NETIF_F_TSO;
6373 return 0;
6374 }
6375
6376 static struct ethtool_ops qeth_ethtool_ops = {
6377 .get_tx_csum = qeth_ethtool_get_tx_csum,
6378 .set_tx_csum = qeth_ethtool_set_tx_csum,
6379 .get_rx_csum = qeth_ethtool_get_rx_csum,
6380 .set_rx_csum = qeth_ethtool_set_rx_csum,
6381 .get_sg = qeth_ethtool_get_sg,
6382 .set_sg = qeth_ethtool_set_sg,
6383 .get_tso = qeth_ethtool_get_tso,
6384 .set_tso = qeth_ethtool_set_tso,
6385 };
6386
6387 static int
6388 qeth_netdev_init(struct net_device *dev)
6389 {
6390 struct qeth_card *card;
6391
6392 card = (struct qeth_card *) dev->priv;
6393
6394 QETH_DBF_TEXT(trace,3,"initdev");
6395
6396 dev->tx_timeout = &qeth_tx_timeout;
6397 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6398 dev->open = qeth_open;
6399 dev->stop = qeth_stop;
6400 dev->hard_start_xmit = qeth_hard_start_xmit;
6401 dev->do_ioctl = qeth_do_ioctl;
6402 dev->get_stats = qeth_get_stats;
6403 dev->change_mtu = qeth_change_mtu;
6404 dev->neigh_setup = qeth_neigh_setup;
6405 dev->set_multicast_list = qeth_set_multicast_list;
6406 #ifdef CONFIG_QETH_VLAN
6407 dev->vlan_rx_register = qeth_vlan_rx_register;
6408 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6409 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6410 #endif
6411 dev->hard_header = card->orig_hard_header;
6412 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6413 dev->rebuild_header = NULL;
6414 dev->hard_header = NULL;
6415 if (card->options.fake_ll)
6416 dev->hard_header = qeth_fake_header;
6417 dev->header_cache_update = NULL;
6418 dev->hard_header_cache = NULL;
6419 }
6420 #ifdef CONFIG_QETH_IPV6
6421 /*IPv6 address autoconfiguration stuff*/
6422 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6423 card->dev->dev_id = card->info.unique_id & 0xffff;
6424 #endif
6425 dev->hard_header_parse = NULL;
6426 dev->set_mac_address = qeth_layer2_set_mac_address;
6427 dev->flags |= qeth_get_netdev_flags(card);
6428 if ((card->options.fake_broadcast) ||
6429 (card->info.broadcast_capable))
6430 dev->flags |= IFF_BROADCAST;
6431 dev->hard_header_len =
6432 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6433 dev->addr_len = OSA_ADDR_LEN;
6434 dev->mtu = card->info.initial_mtu;
6435 if (card->info.type != QETH_CARD_TYPE_OSN)
6436 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6437 SET_MODULE_OWNER(dev);
6438 return 0;
6439 }
6440
6441 static void
6442 qeth_init_func_level(struct qeth_card *card)
6443 {
6444 if (card->ipato.enabled) {
6445 if (card->info.type == QETH_CARD_TYPE_IQD)
6446 card->info.func_level =
6447 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6448 else
6449 card->info.func_level =
6450 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6451 } else {
6452 if (card->info.type == QETH_CARD_TYPE_IQD)
6453 /*FIXME:why do we have same values for dis and ena for osae??? */
6454 card->info.func_level =
6455 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6456 else
6457 card->info.func_level =
6458 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6459 }
6460 }
6461
6462 /**
6463 * hardsetup card, initialize MPC and QDIO stuff
6464 */
6465 static int
6466 qeth_hardsetup_card(struct qeth_card *card)
6467 {
6468 int retries = 3;
6469 int rc;
6470
6471 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6472
6473 retry:
6474 if (retries < 3){
6475 PRINT_WARN("Retrying to do IDX activates.\n");
6476 ccw_device_set_offline(CARD_DDEV(card));
6477 ccw_device_set_offline(CARD_WDEV(card));
6478 ccw_device_set_offline(CARD_RDEV(card));
6479 ccw_device_set_online(CARD_RDEV(card));
6480 ccw_device_set_online(CARD_WDEV(card));
6481 ccw_device_set_online(CARD_DDEV(card));
6482 }
6483 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6484 if (rc == -ERESTARTSYS) {
6485 QETH_DBF_TEXT(setup, 2, "break1");
6486 return rc;
6487 } else if (rc) {
6488 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6489 if (--retries < 0)
6490 goto out;
6491 else
6492 goto retry;
6493 }
6494 if ((rc = qeth_get_unitaddr(card))){
6495 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6496 return rc;
6497 }
6498 qeth_init_tokens(card);
6499 qeth_init_func_level(card);
6500 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6501 if (rc == -ERESTARTSYS) {
6502 QETH_DBF_TEXT(setup, 2, "break2");
6503 return rc;
6504 } else if (rc) {
6505 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6506 if (--retries < 0)
6507 goto out;
6508 else
6509 goto retry;
6510 }
6511 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6512 if (rc == -ERESTARTSYS) {
6513 QETH_DBF_TEXT(setup, 2, "break3");
6514 return rc;
6515 } else if (rc) {
6516 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6517 if (--retries < 0)
6518 goto out;
6519 else
6520 goto retry;
6521 }
6522 if ((rc = qeth_mpc_initialize(card))){
6523 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6524 goto out;
6525 }
6526 /*network device will be recovered*/
6527 if (card->dev) {
6528 card->dev->hard_header = card->orig_hard_header;
6529 return 0;
6530 }
6531 /* at first set_online allocate netdev */
6532 card->dev = qeth_get_netdevice(card->info.type,
6533 card->info.link_type);
6534 if (!card->dev){
6535 qeth_qdio_clear_card(card, card->info.type !=
6536 QETH_CARD_TYPE_IQD);
6537 rc = -ENODEV;
6538 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6539 goto out;
6540 }
6541 card->dev->priv = card;
6542 card->orig_hard_header = card->dev->hard_header;
6543 card->dev->type = qeth_get_arphdr_type(card->info.type,
6544 card->info.link_type);
6545 card->dev->init = qeth_netdev_init;
6546 return 0;
6547 out:
6548 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6549 return rc;
6550 }
6551
6552 static int
6553 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6554 unsigned long data)
6555 {
6556 struct qeth_ipa_cmd *cmd;
6557
6558 QETH_DBF_TEXT(trace,4,"defadpcb");
6559
6560 cmd = (struct qeth_ipa_cmd *) data;
6561 if (cmd->hdr.return_code == 0){
6562 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6563 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6564 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6565 #ifdef CONFIG_QETH_IPV6
6566 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6567 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6568 #endif
6569 }
6570 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6571 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6572 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6573 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6574 }
6575 return 0;
6576 }
6577
6578 static int
6579 qeth_default_setadapterparms_cb(struct qeth_card *card,
6580 struct qeth_reply *reply,
6581 unsigned long data)
6582 {
6583 struct qeth_ipa_cmd *cmd;
6584
6585 QETH_DBF_TEXT(trace,4,"defadpcb");
6586
6587 cmd = (struct qeth_ipa_cmd *) data;
6588 if (cmd->hdr.return_code == 0)
6589 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6590 return 0;
6591 }
6592
6593
6594
6595 static int
6596 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6597 unsigned long data)
6598 {
6599 struct qeth_ipa_cmd *cmd;
6600
6601 QETH_DBF_TEXT(trace,3,"quyadpcb");
6602
6603 cmd = (struct qeth_ipa_cmd *) data;
6604 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6605 card->info.link_type =
6606 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6607 card->options.adp.supported_funcs =
6608 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6609 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6610 }
6611
6612 static int
6613 qeth_query_setadapterparms(struct qeth_card *card)
6614 {
6615 int rc;
6616 struct qeth_cmd_buffer *iob;
6617
6618 QETH_DBF_TEXT(trace,3,"queryadp");
6619 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6620 sizeof(struct qeth_ipacmd_setadpparms));
6621 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6622 return rc;
6623 }
6624
6625 static int
6626 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6627 struct qeth_reply *reply,
6628 unsigned long data)
6629 {
6630 struct qeth_ipa_cmd *cmd;
6631
6632 QETH_DBF_TEXT(trace,4,"chgmaccb");
6633
6634 cmd = (struct qeth_ipa_cmd *) data;
6635 if (!card->options.layer2 || card->info.guestlan ||
6636 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6637 memcpy(card->dev->dev_addr,
6638 &cmd->data.setadapterparms.data.change_addr.addr,
6639 OSA_ADDR_LEN);
6640 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6641 }
6642 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6643 return 0;
6644 }
6645
6646 static int
6647 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6648 {
6649 int rc;
6650 struct qeth_cmd_buffer *iob;
6651 struct qeth_ipa_cmd *cmd;
6652
6653 QETH_DBF_TEXT(trace,4,"chgmac");
6654
6655 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6656 sizeof(struct qeth_ipacmd_setadpparms));
6657 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6658 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6659 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6660 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6661 card->dev->dev_addr, OSA_ADDR_LEN);
6662 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6663 NULL);
6664 return rc;
6665 }
6666
6667 static int
6668 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6669 {
6670 int rc;
6671 struct qeth_cmd_buffer *iob;
6672 struct qeth_ipa_cmd *cmd;
6673
6674 QETH_DBF_TEXT(trace,4,"adpmode");
6675
6676 iob = qeth_get_adapter_cmd(card, command,
6677 sizeof(struct qeth_ipacmd_setadpparms));
6678 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6679 cmd->data.setadapterparms.data.mode = mode;
6680 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6681 NULL);
6682 return rc;
6683 }
6684
6685 static inline int
6686 qeth_setadapter_hstr(struct qeth_card *card)
6687 {
6688 int rc;
6689
6690 QETH_DBF_TEXT(trace,4,"adphstr");
6691
6692 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6693 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6694 card->options.broadcast_mode);
6695 if (rc)
6696 PRINT_WARN("couldn't set broadcast mode on "
6697 "device %s: x%x\n",
6698 CARD_BUS_ID(card), rc);
6699 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6700 card->options.macaddr_mode);
6701 if (rc)
6702 PRINT_WARN("couldn't set macaddr mode on "
6703 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6704 return rc;
6705 }
6706 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6707 PRINT_WARN("set adapter parameters not available "
6708 "to set broadcast mode, using ALLRINGS "
6709 "on device %s:\n", CARD_BUS_ID(card));
6710 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6711 PRINT_WARN("set adapter parameters not available "
6712 "to set macaddr mode, using NONCANONICAL "
6713 "on device %s:\n", CARD_BUS_ID(card));
6714 return 0;
6715 }
6716
6717 static int
6718 qeth_setadapter_parms(struct qeth_card *card)
6719 {
6720 int rc;
6721
6722 QETH_DBF_TEXT(setup, 2, "setadprm");
6723
6724 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6725 PRINT_WARN("set adapter parameters not supported "
6726 "on device %s.\n",
6727 CARD_BUS_ID(card));
6728 QETH_DBF_TEXT(setup, 2, " notsupp");
6729 return 0;
6730 }
6731 rc = qeth_query_setadapterparms(card);
6732 if (rc) {
6733 PRINT_WARN("couldn't set adapter parameters on device %s: "
6734 "x%x\n", CARD_BUS_ID(card), rc);
6735 return rc;
6736 }
6737 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6738 rc = qeth_setadpparms_change_macaddr(card);
6739 if (rc)
6740 PRINT_WARN("couldn't get MAC address on "
6741 "device %s: x%x\n",
6742 CARD_BUS_ID(card), rc);
6743 }
6744
6745 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6746 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6747 rc = qeth_setadapter_hstr(card);
6748
6749 return rc;
6750 }
6751
6752 static int
6753 qeth_layer2_initialize(struct qeth_card *card)
6754 {
6755 int rc = 0;
6756
6757
6758 QETH_DBF_TEXT(setup, 2, "doL2init");
6759 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6760
6761 rc = qeth_query_setadapterparms(card);
6762 if (rc) {
6763 PRINT_WARN("could not query adapter parameters on device %s: "
6764 "x%x\n", CARD_BUS_ID(card), rc);
6765 }
6766
6767 rc = qeth_setadpparms_change_macaddr(card);
6768 if (rc) {
6769 PRINT_WARN("couldn't get MAC address on "
6770 "device %s: x%x\n",
6771 CARD_BUS_ID(card), rc);
6772 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6773 return rc;
6774 }
6775 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6776
6777 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6778 if (rc)
6779 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6780 return 0;
6781 }
6782
6783
6784 static int
6785 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6786 enum qeth_prot_versions prot)
6787 {
6788 int rc;
6789 struct qeth_cmd_buffer *iob;
6790
6791 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6792 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6793
6794 return rc;
6795 }
6796
6797 static int
6798 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6799 {
6800 int rc;
6801
6802 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6803
6804 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6805 return rc;
6806 }
6807
6808 static int
6809 qeth_send_stoplan(struct qeth_card *card)
6810 {
6811 int rc = 0;
6812
6813 /*
6814 * TODO: according to the IPA format document page 14,
6815 * TCP/IP (we!) never issue a STOPLAN
6816 * is this right ?!?
6817 */
6818 QETH_DBF_TEXT(trace, 2, "stoplan");
6819
6820 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6821 return rc;
6822 }
6823
6824 static int
6825 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6826 unsigned long data)
6827 {
6828 struct qeth_ipa_cmd *cmd;
6829
6830 QETH_DBF_TEXT(setup, 2, "qipasscb");
6831
6832 cmd = (struct qeth_ipa_cmd *) data;
6833 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6834 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6835 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6836 /* Disable IPV6 support hard coded for Hipersockets */
6837 if(card->info.type == QETH_CARD_TYPE_IQD)
6838 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6839 } else {
6840 #ifdef CONFIG_QETH_IPV6
6841 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6842 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6843 #endif
6844 }
6845 QETH_DBF_TEXT(setup, 2, "suppenbl");
6846 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6847 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6848 return 0;
6849 }
6850
6851 static int
6852 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6853 {
6854 int rc;
6855 struct qeth_cmd_buffer *iob;
6856
6857 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6858 if (card->options.layer2) {
6859 QETH_DBF_TEXT(setup, 2, "noprmly2");
6860 return -EPERM;
6861 }
6862
6863 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6864 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6865 return rc;
6866 }
6867
6868 static struct qeth_cmd_buffer *
6869 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6870 __u16 cmd_code, __u16 len,
6871 enum qeth_prot_versions prot)
6872 {
6873 struct qeth_cmd_buffer *iob;
6874 struct qeth_ipa_cmd *cmd;
6875
6876 QETH_DBF_TEXT(trace,4,"getasscm");
6877 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6878
6879 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6880 cmd->data.setassparms.hdr.assist_no = ipa_func;
6881 cmd->data.setassparms.hdr.length = 8 + len;
6882 cmd->data.setassparms.hdr.command_code = cmd_code;
6883 cmd->data.setassparms.hdr.return_code = 0;
6884 cmd->data.setassparms.hdr.seq_no = 0;
6885
6886 return iob;
6887 }
6888
6889 static int
6890 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6891 __u16 len, long data,
6892 int (*reply_cb)
6893 (struct qeth_card *,struct qeth_reply *,unsigned long),
6894 void *reply_param)
6895 {
6896 int rc;
6897 struct qeth_ipa_cmd *cmd;
6898
6899 QETH_DBF_TEXT(trace,4,"sendassp");
6900
6901 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6902 if (len <= sizeof(__u32))
6903 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6904 else if (len > sizeof(__u32))
6905 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6906
6907 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6908 return rc;
6909 }
6910
6911 #ifdef CONFIG_QETH_IPV6
6912 static int
6913 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6914 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6915
6916 {
6917 int rc;
6918 struct qeth_cmd_buffer *iob;
6919
6920 QETH_DBF_TEXT(trace,4,"simassp6");
6921 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6922 0, QETH_PROT_IPV6);
6923 rc = qeth_send_setassparms(card, iob, 0, 0,
6924 qeth_default_setassparms_cb, NULL);
6925 return rc;
6926 }
6927 #endif
6928
6929 static int
6930 qeth_send_simple_setassparms(struct qeth_card *card,
6931 enum qeth_ipa_funcs ipa_func,
6932 __u16 cmd_code, long data)
6933 {
6934 int rc;
6935 int length = 0;
6936 struct qeth_cmd_buffer *iob;
6937
6938 QETH_DBF_TEXT(trace,4,"simassp4");
6939 if (data)
6940 length = sizeof(__u32);
6941 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6942 length, QETH_PROT_IPV4);
6943 rc = qeth_send_setassparms(card, iob, length, data,
6944 qeth_default_setassparms_cb, NULL);
6945 return rc;
6946 }
6947
6948 static inline int
6949 qeth_start_ipa_arp_processing(struct qeth_card *card)
6950 {
6951 int rc;
6952
6953 QETH_DBF_TEXT(trace,3,"ipaarp");
6954
6955 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6956 PRINT_WARN("ARP processing not supported "
6957 "on %s!\n", QETH_CARD_IFNAME(card));
6958 return 0;
6959 }
6960 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6961 IPA_CMD_ASS_START, 0);
6962 if (rc) {
6963 PRINT_WARN("Could not start ARP processing "
6964 "assist on %s: 0x%x\n",
6965 QETH_CARD_IFNAME(card), rc);
6966 }
6967 return rc;
6968 }
6969
6970 static int
6971 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6972 {
6973 int rc;
6974
6975 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6976
6977 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6978 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6979 QETH_CARD_IFNAME(card));
6980 return -EOPNOTSUPP;
6981 }
6982
6983 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6984 IPA_CMD_ASS_START, 0);
6985 if (rc) {
6986 PRINT_WARN("Could not start Hardware IP fragmentation "
6987 "assist on %s: 0x%x\n",
6988 QETH_CARD_IFNAME(card), rc);
6989 } else
6990 PRINT_INFO("Hardware IP fragmentation enabled \n");
6991 return rc;
6992 }
6993
6994 static int
6995 qeth_start_ipa_source_mac(struct qeth_card *card)
6996 {
6997 int rc;
6998
6999 QETH_DBF_TEXT(trace,3,"stsrcmac");
7000
7001 if (!card->options.fake_ll)
7002 return -EOPNOTSUPP;
7003
7004 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7005 PRINT_INFO("Inbound source address not "
7006 "supported on %s\n", QETH_CARD_IFNAME(card));
7007 return -EOPNOTSUPP;
7008 }
7009
7010 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7011 IPA_CMD_ASS_START, 0);
7012 if (rc)
7013 PRINT_WARN("Could not start inbound source "
7014 "assist on %s: 0x%x\n",
7015 QETH_CARD_IFNAME(card), rc);
7016 return rc;
7017 }
7018
7019 static int
7020 qeth_start_ipa_vlan(struct qeth_card *card)
7021 {
7022 int rc = 0;
7023
7024 QETH_DBF_TEXT(trace,3,"strtvlan");
7025
7026 #ifdef CONFIG_QETH_VLAN
7027 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7028 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7029 return -EOPNOTSUPP;
7030 }
7031
7032 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7033 IPA_CMD_ASS_START,0);
7034 if (rc) {
7035 PRINT_WARN("Could not start vlan "
7036 "assist on %s: 0x%x\n",
7037 QETH_CARD_IFNAME(card), rc);
7038 } else {
7039 PRINT_INFO("VLAN enabled \n");
7040 card->dev->features |=
7041 NETIF_F_HW_VLAN_FILTER |
7042 NETIF_F_HW_VLAN_TX |
7043 NETIF_F_HW_VLAN_RX;
7044 }
7045 #endif /* QETH_VLAN */
7046 return rc;
7047 }
7048
7049 static int
7050 qeth_start_ipa_multicast(struct qeth_card *card)
7051 {
7052 int rc;
7053
7054 QETH_DBF_TEXT(trace,3,"stmcast");
7055
7056 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7057 PRINT_WARN("Multicast not supported on %s\n",
7058 QETH_CARD_IFNAME(card));
7059 return -EOPNOTSUPP;
7060 }
7061
7062 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7063 IPA_CMD_ASS_START,0);
7064 if (rc) {
7065 PRINT_WARN("Could not start multicast "
7066 "assist on %s: rc=%i\n",
7067 QETH_CARD_IFNAME(card), rc);
7068 } else {
7069 PRINT_INFO("Multicast enabled\n");
7070 card->dev->flags |= IFF_MULTICAST;
7071 }
7072 return rc;
7073 }
7074
7075 #ifdef CONFIG_QETH_IPV6
7076 static int
7077 qeth_softsetup_ipv6(struct qeth_card *card)
7078 {
7079 int rc;
7080
7081 QETH_DBF_TEXT(trace,3,"softipv6");
7082
7083 netif_stop_queue(card->dev);
7084 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7085 if (rc) {
7086 PRINT_ERR("IPv6 startlan failed on %s\n",
7087 QETH_CARD_IFNAME(card));
7088 return rc;
7089 }
7090 netif_wake_queue(card->dev);
7091 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7092 if (rc) {
7093 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7094 QETH_CARD_IFNAME(card));
7095 return rc;
7096 }
7097 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7098 IPA_CMD_ASS_START, 3);
7099 if (rc) {
7100 PRINT_WARN("IPv6 start assist (version 4) failed "
7101 "on %s: 0x%x\n",
7102 QETH_CARD_IFNAME(card), rc);
7103 return rc;
7104 }
7105 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7106 IPA_CMD_ASS_START);
7107 if (rc) {
7108 PRINT_WARN("IPV6 start assist (version 6) failed "
7109 "on %s: 0x%x\n",
7110 QETH_CARD_IFNAME(card), rc);
7111 return rc;
7112 }
7113 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7114 IPA_CMD_ASS_START);
7115 if (rc) {
7116 PRINT_WARN("Could not enable passthrough "
7117 "on %s: 0x%x\n",
7118 QETH_CARD_IFNAME(card), rc);
7119 return rc;
7120 }
7121 PRINT_INFO("IPV6 enabled \n");
7122 return 0;
7123 }
7124
7125 #endif
7126
7127 static int
7128 qeth_start_ipa_ipv6(struct qeth_card *card)
7129 {
7130 int rc = 0;
7131 #ifdef CONFIG_QETH_IPV6
7132 QETH_DBF_TEXT(trace,3,"strtipv6");
7133
7134 if (!qeth_is_supported(card, IPA_IPV6)) {
7135 PRINT_WARN("IPv6 not supported on %s\n",
7136 QETH_CARD_IFNAME(card));
7137 return 0;
7138 }
7139 rc = qeth_softsetup_ipv6(card);
7140 #endif
7141 return rc ;
7142 }
7143
7144 static int
7145 qeth_start_ipa_broadcast(struct qeth_card *card)
7146 {
7147 int rc;
7148
7149 QETH_DBF_TEXT(trace,3,"stbrdcst");
7150 card->info.broadcast_capable = 0;
7151 if (!qeth_is_supported(card, IPA_FILTERING)) {
7152 PRINT_WARN("Broadcast not supported on %s\n",
7153 QETH_CARD_IFNAME(card));
7154 rc = -EOPNOTSUPP;
7155 goto out;
7156 }
7157 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7158 IPA_CMD_ASS_START, 0);
7159 if (rc) {
7160 PRINT_WARN("Could not enable broadcasting filtering "
7161 "on %s: 0x%x\n",
7162 QETH_CARD_IFNAME(card), rc);
7163 goto out;
7164 }
7165
7166 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7167 IPA_CMD_ASS_CONFIGURE, 1);
7168 if (rc) {
7169 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7170 QETH_CARD_IFNAME(card), rc);
7171 goto out;
7172 }
7173 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7174 PRINT_INFO("Broadcast enabled \n");
7175 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7176 IPA_CMD_ASS_ENABLE, 1);
7177 if (rc) {
7178 PRINT_WARN("Could not set up broadcast echo filtering on "
7179 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7180 goto out;
7181 }
7182 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7183 out:
7184 if (card->info.broadcast_capable)
7185 card->dev->flags |= IFF_BROADCAST;
7186 else
7187 card->dev->flags &= ~IFF_BROADCAST;
7188 return rc;
7189 }
7190
7191 static int
7192 qeth_send_checksum_command(struct qeth_card *card)
7193 {
7194 int rc;
7195
7196 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7197 IPA_CMD_ASS_START, 0);
7198 if (rc) {
7199 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7200 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7201 QETH_CARD_IFNAME(card), rc);
7202 return rc;
7203 }
7204 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7205 IPA_CMD_ASS_ENABLE,
7206 card->info.csum_mask);
7207 if (rc) {
7208 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7209 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7210 QETH_CARD_IFNAME(card), rc);
7211 return rc;
7212 }
7213 return 0;
7214 }
7215
7216 static int
7217 qeth_start_ipa_checksum(struct qeth_card *card)
7218 {
7219 int rc = 0;
7220
7221 QETH_DBF_TEXT(trace,3,"strtcsum");
7222
7223 if (card->options.checksum_type == NO_CHECKSUMMING) {
7224 PRINT_WARN("Using no checksumming on %s.\n",
7225 QETH_CARD_IFNAME(card));
7226 return 0;
7227 }
7228 if (card->options.checksum_type == SW_CHECKSUMMING) {
7229 PRINT_WARN("Using SW checksumming on %s.\n",
7230 QETH_CARD_IFNAME(card));
7231 return 0;
7232 }
7233 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7234 PRINT_WARN("Inbound HW Checksumming not "
7235 "supported on %s,\ncontinuing "
7236 "using Inbound SW Checksumming\n",
7237 QETH_CARD_IFNAME(card));
7238 card->options.checksum_type = SW_CHECKSUMMING;
7239 return 0;
7240 }
7241 rc = qeth_send_checksum_command(card);
7242 if (!rc) {
7243 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7244 }
7245 return rc;
7246 }
7247
7248 static int
7249 qeth_start_ipa_tso(struct qeth_card *card)
7250 {
7251 int rc;
7252
7253 QETH_DBF_TEXT(trace,3,"sttso");
7254
7255 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7256 PRINT_WARN("Outbound TSO not supported on %s\n",
7257 QETH_CARD_IFNAME(card));
7258 rc = -EOPNOTSUPP;
7259 } else {
7260 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7261 IPA_CMD_ASS_START,0);
7262 if (rc)
7263 PRINT_WARN("Could not start outbound TSO "
7264 "assist on %s: rc=%i\n",
7265 QETH_CARD_IFNAME(card), rc);
7266 else
7267 PRINT_INFO("Outbound TSO enabled\n");
7268 }
7269 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7270 card->options.large_send = QETH_LARGE_SEND_NO;
7271 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7272 }
7273 return rc;
7274 }
7275
7276 static int
7277 qeth_start_ipassists(struct qeth_card *card)
7278 {
7279 QETH_DBF_TEXT(trace,3,"strtipas");
7280 qeth_start_ipa_arp_processing(card); /* go on*/
7281 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7282 qeth_start_ipa_source_mac(card); /* go on*/
7283 qeth_start_ipa_vlan(card); /* go on*/
7284 qeth_start_ipa_multicast(card); /* go on*/
7285 qeth_start_ipa_ipv6(card); /* go on*/
7286 qeth_start_ipa_broadcast(card); /* go on*/
7287 qeth_start_ipa_checksum(card); /* go on*/
7288 qeth_start_ipa_tso(card); /* go on*/
7289 return 0;
7290 }
7291
7292 static int
7293 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7294 enum qeth_prot_versions prot)
7295 {
7296 int rc;
7297 struct qeth_ipa_cmd *cmd;
7298 struct qeth_cmd_buffer *iob;
7299
7300 QETH_DBF_TEXT(trace,4,"setroutg");
7301 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7302 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7303 cmd->data.setrtg.type = (type);
7304 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7305
7306 return rc;
7307
7308 }
7309
7310 static void
7311 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7312 enum qeth_prot_versions prot)
7313 {
7314 if (card->info.type == QETH_CARD_TYPE_IQD) {
7315 switch (*type) {
7316 case NO_ROUTER:
7317 case PRIMARY_CONNECTOR:
7318 case SECONDARY_CONNECTOR:
7319 case MULTICAST_ROUTER:
7320 return;
7321 default:
7322 goto out_inval;
7323 }
7324 } else {
7325 switch (*type) {
7326 case NO_ROUTER:
7327 case PRIMARY_ROUTER:
7328 case SECONDARY_ROUTER:
7329 return;
7330 case MULTICAST_ROUTER:
7331 if (qeth_is_ipafunc_supported(card, prot,
7332 IPA_OSA_MC_ROUTER))
7333 return;
7334 default:
7335 goto out_inval;
7336 }
7337 }
7338 out_inval:
7339 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7340 "Router status set to 'no router'.\n",
7341 ((*type == PRIMARY_ROUTER)? "primary router" :
7342 (*type == SECONDARY_ROUTER)? "secondary router" :
7343 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7344 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7345 (*type == MULTICAST_ROUTER)? "multicast router" :
7346 "unknown"),
7347 card->dev->name);
7348 *type = NO_ROUTER;
7349 }
7350
7351 int
7352 qeth_setrouting_v4(struct qeth_card *card)
7353 {
7354 int rc;
7355
7356 QETH_DBF_TEXT(trace,3,"setrtg4");
7357
7358 qeth_correct_routing_type(card, &card->options.route4.type,
7359 QETH_PROT_IPV4);
7360
7361 rc = qeth_send_setrouting(card, card->options.route4.type,
7362 QETH_PROT_IPV4);
7363 if (rc) {
7364 card->options.route4.type = NO_ROUTER;
7365 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7366 "Type set to 'no router'.\n",
7367 rc, QETH_CARD_IFNAME(card));
7368 }
7369 return rc;
7370 }
7371
7372 int
7373 qeth_setrouting_v6(struct qeth_card *card)
7374 {
7375 int rc = 0;
7376
7377 QETH_DBF_TEXT(trace,3,"setrtg6");
7378 #ifdef CONFIG_QETH_IPV6
7379
7380 qeth_correct_routing_type(card, &card->options.route6.type,
7381 QETH_PROT_IPV6);
7382
7383 if ((card->options.route6.type == NO_ROUTER) ||
7384 ((card->info.type == QETH_CARD_TYPE_OSAE) &&
7385 (card->options.route6.type == MULTICAST_ROUTER) &&
7386 !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
7387 return 0;
7388 rc = qeth_send_setrouting(card, card->options.route6.type,
7389 QETH_PROT_IPV6);
7390 if (rc) {
7391 card->options.route6.type = NO_ROUTER;
7392 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7393 "Type set to 'no router'.\n",
7394 rc, QETH_CARD_IFNAME(card));
7395 }
7396 #endif
7397 return rc;
7398 }
7399
7400 int
7401 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7402 {
7403 int rc = 0;
7404
7405 if (card->dev == NULL) {
7406 card->options.large_send = type;
7407 return 0;
7408 }
7409 netif_stop_queue(card->dev);
7410 card->options.large_send = type;
7411 switch (card->options.large_send) {
7412 case QETH_LARGE_SEND_EDDP:
7413 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7414 break;
7415 case QETH_LARGE_SEND_TSO:
7416 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7417 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7418 } else {
7419 PRINT_WARN("TSO not supported on %s. "
7420 "large_send set to 'no'.\n",
7421 card->dev->name);
7422 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7423 card->options.large_send = QETH_LARGE_SEND_NO;
7424 rc = -EOPNOTSUPP;
7425 }
7426 break;
7427 default: /* includes QETH_LARGE_SEND_NO */
7428 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7429 break;
7430 }
7431 netif_wake_queue(card->dev);
7432 return rc;
7433 }
7434
7435 /*
7436 * softsetup card: init IPA stuff
7437 */
7438 static int
7439 qeth_softsetup_card(struct qeth_card *card)
7440 {
7441 int rc;
7442
7443 QETH_DBF_TEXT(setup, 2, "softsetp");
7444
7445 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7446 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7447 if (rc == 0xe080){
7448 PRINT_WARN("LAN on card %s if offline! "
7449 "Continuing softsetup.\n",
7450 CARD_BUS_ID(card));
7451 card->lan_online = 0;
7452 } else
7453 return rc;
7454 } else
7455 card->lan_online = 1;
7456 if (card->info.type==QETH_CARD_TYPE_OSN)
7457 goto out;
7458 if (card->options.layer2) {
7459 card->dev->features |=
7460 NETIF_F_HW_VLAN_FILTER |
7461 NETIF_F_HW_VLAN_TX |
7462 NETIF_F_HW_VLAN_RX;
7463 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7464 card->info.broadcast_capable=1;
7465 if ((rc = qeth_layer2_initialize(card))) {
7466 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7467 return rc;
7468 }
7469 #ifdef CONFIG_QETH_VLAN
7470 qeth_layer2_process_vlans(card, 0);
7471 #endif
7472 goto out;
7473 }
7474 if ((card->options.large_send == QETH_LARGE_SEND_EDDP) ||
7475 (card->options.large_send == QETH_LARGE_SEND_TSO))
7476 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7477 else
7478 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7479
7480 if ((rc = qeth_setadapter_parms(card)))
7481 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7482 if ((rc = qeth_start_ipassists(card)))
7483 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7484 if ((rc = qeth_setrouting_v4(card)))
7485 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7486 if ((rc = qeth_setrouting_v6(card)))
7487 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7488 out:
7489 netif_stop_queue(card->dev);
7490 return 0;
7491 }
7492
7493 #ifdef CONFIG_QETH_IPV6
7494 static int
7495 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7496 unsigned long data)
7497 {
7498 struct qeth_ipa_cmd *cmd;
7499
7500 cmd = (struct qeth_ipa_cmd *) data;
7501 if (cmd->hdr.return_code == 0)
7502 card->info.unique_id = *((__u16 *)
7503 &cmd->data.create_destroy_addr.unique_id[6]);
7504 else {
7505 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7506 UNIQUE_ID_NOT_BY_CARD;
7507 PRINT_WARN("couldn't get a unique id from the card on device "
7508 "%s (result=x%x), using default id. ipv6 "
7509 "autoconfig on other lpars may lead to duplicate "
7510 "ip addresses. please use manually "
7511 "configured ones.\n",
7512 CARD_BUS_ID(card), cmd->hdr.return_code);
7513 }
7514 return 0;
7515 }
7516 #endif
7517
7518 static int
7519 qeth_put_unique_id(struct qeth_card *card)
7520 {
7521
7522 int rc = 0;
7523 #ifdef CONFIG_QETH_IPV6
7524 struct qeth_cmd_buffer *iob;
7525 struct qeth_ipa_cmd *cmd;
7526
7527 QETH_DBF_TEXT(trace,2,"puniqeid");
7528
7529 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7530 UNIQUE_ID_NOT_BY_CARD)
7531 return -1;
7532 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7533 QETH_PROT_IPV6);
7534 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7535 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7536 card->info.unique_id;
7537 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7538 card->dev->dev_addr, OSA_ADDR_LEN);
7539 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7540 #else
7541 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7542 UNIQUE_ID_NOT_BY_CARD;
7543 #endif
7544 return rc;
7545 }
7546
7547 /**
7548 * Clear IP List
7549 */
7550 static void
7551 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7552 {
7553 struct qeth_ipaddr *addr, *tmp;
7554 unsigned long flags;
7555
7556 QETH_DBF_TEXT(trace,4,"clearip");
7557 spin_lock_irqsave(&card->ip_lock, flags);
7558 /* clear todo list */
7559 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7560 list_del(&addr->entry);
7561 kfree(addr);
7562 }
7563
7564 while (!list_empty(&card->ip_list)) {
7565 addr = list_entry(card->ip_list.next,
7566 struct qeth_ipaddr, entry);
7567 list_del_init(&addr->entry);
7568 if (clean) {
7569 spin_unlock_irqrestore(&card->ip_lock, flags);
7570 qeth_deregister_addr_entry(card, addr);
7571 spin_lock_irqsave(&card->ip_lock, flags);
7572 }
7573 if (!recover || addr->is_multicast) {
7574 kfree(addr);
7575 continue;
7576 }
7577 list_add_tail(&addr->entry, card->ip_tbd_list);
7578 }
7579 spin_unlock_irqrestore(&card->ip_lock, flags);
7580 }
7581
7582 static void
7583 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7584 int clear_start_mask)
7585 {
7586 unsigned long flags;
7587
7588 spin_lock_irqsave(&card->thread_mask_lock, flags);
7589 card->thread_allowed_mask = threads;
7590 if (clear_start_mask)
7591 card->thread_start_mask &= threads;
7592 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7593 wake_up(&card->wait_q);
7594 }
7595
7596 static inline int
7597 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7598 {
7599 unsigned long flags;
7600 int rc = 0;
7601
7602 spin_lock_irqsave(&card->thread_mask_lock, flags);
7603 rc = (card->thread_running_mask & threads);
7604 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7605 return rc;
7606 }
7607
7608 static int
7609 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7610 {
7611 return wait_event_interruptible(card->wait_q,
7612 qeth_threads_running(card, threads) == 0);
7613 }
7614
7615 static int
7616 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7617 {
7618 int rc = 0;
7619
7620 QETH_DBF_TEXT(setup ,2,"stopcard");
7621 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7622
7623 qeth_set_allowed_threads(card, 0, 1);
7624 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7625 return -ERESTARTSYS;
7626 if (card->read.state == CH_STATE_UP &&
7627 card->write.state == CH_STATE_UP &&
7628 (card->state == CARD_STATE_UP)) {
7629 if (recovery_mode &&
7630 card->info.type != QETH_CARD_TYPE_OSN) {
7631 qeth_stop(card->dev);
7632 } else {
7633 rtnl_lock();
7634 dev_close(card->dev);
7635 rtnl_unlock();
7636 }
7637 if (!card->use_hard_stop) {
7638 __u8 *mac = &card->dev->dev_addr[0];
7639 rc = qeth_layer2_send_delmac(card, mac);
7640 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7641 if ((rc = qeth_send_stoplan(card)))
7642 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7643 }
7644 card->state = CARD_STATE_SOFTSETUP;
7645 }
7646 if (card->state == CARD_STATE_SOFTSETUP) {
7647 #ifdef CONFIG_QETH_VLAN
7648 if (card->options.layer2)
7649 qeth_layer2_process_vlans(card, 1);
7650 #endif
7651 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7652 qeth_clear_ipacmd_list(card);
7653 card->state = CARD_STATE_HARDSETUP;
7654 }
7655 if (card->state == CARD_STATE_HARDSETUP) {
7656 if ((!card->use_hard_stop) &&
7657 (!card->options.layer2))
7658 if ((rc = qeth_put_unique_id(card)))
7659 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7660 qeth_qdio_clear_card(card, 0);
7661 qeth_clear_qdio_buffers(card);
7662 qeth_clear_working_pool_list(card);
7663 card->state = CARD_STATE_DOWN;
7664 }
7665 if (card->state == CARD_STATE_DOWN) {
7666 qeth_clear_cmd_buffers(&card->read);
7667 qeth_clear_cmd_buffers(&card->write);
7668 }
7669 card->use_hard_stop = 0;
7670 return rc;
7671 }
7672
7673
7674 static int
7675 qeth_get_unique_id(struct qeth_card *card)
7676 {
7677 int rc = 0;
7678 #ifdef CONFIG_QETH_IPV6
7679 struct qeth_cmd_buffer *iob;
7680 struct qeth_ipa_cmd *cmd;
7681
7682 QETH_DBF_TEXT(setup, 2, "guniqeid");
7683
7684 if (!qeth_is_supported(card,IPA_IPV6)) {
7685 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7686 UNIQUE_ID_NOT_BY_CARD;
7687 return 0;
7688 }
7689
7690 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7691 QETH_PROT_IPV6);
7692 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7693 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7694 card->info.unique_id;
7695
7696 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7697 #else
7698 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7699 UNIQUE_ID_NOT_BY_CARD;
7700 #endif
7701 return rc;
7702 }
7703 static void
7704 qeth_print_status_with_portname(struct qeth_card *card)
7705 {
7706 char dbf_text[15];
7707 int i;
7708
7709 sprintf(dbf_text, "%s", card->info.portname + 1);
7710 for (i = 0; i < 8; i++)
7711 dbf_text[i] =
7712 (char) _ebcasc[(__u8) dbf_text[i]];
7713 dbf_text[8] = 0;
7714 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7715 "with link type %s (portname: %s)\n",
7716 CARD_RDEV_ID(card),
7717 CARD_WDEV_ID(card),
7718 CARD_DDEV_ID(card),
7719 qeth_get_cardname(card),
7720 (card->info.mcl_level[0]) ? " (level: " : "",
7721 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7722 (card->info.mcl_level[0]) ? ")" : "",
7723 qeth_get_cardname_short(card),
7724 dbf_text);
7725
7726 }
7727
7728 static void
7729 qeth_print_status_no_portname(struct qeth_card *card)
7730 {
7731 if (card->info.portname[0])
7732 printk("qeth: Device %s/%s/%s is a%s "
7733 "card%s%s%s\nwith link type %s "
7734 "(no portname needed by interface).\n",
7735 CARD_RDEV_ID(card),
7736 CARD_WDEV_ID(card),
7737 CARD_DDEV_ID(card),
7738 qeth_get_cardname(card),
7739 (card->info.mcl_level[0]) ? " (level: " : "",
7740 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7741 (card->info.mcl_level[0]) ? ")" : "",
7742 qeth_get_cardname_short(card));
7743 else
7744 printk("qeth: Device %s/%s/%s is a%s "
7745 "card%s%s%s\nwith link type %s.\n",
7746 CARD_RDEV_ID(card),
7747 CARD_WDEV_ID(card),
7748 CARD_DDEV_ID(card),
7749 qeth_get_cardname(card),
7750 (card->info.mcl_level[0]) ? " (level: " : "",
7751 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7752 (card->info.mcl_level[0]) ? ")" : "",
7753 qeth_get_cardname_short(card));
7754 }
7755
7756 static void
7757 qeth_print_status_message(struct qeth_card *card)
7758 {
7759 switch (card->info.type) {
7760 case QETH_CARD_TYPE_OSAE:
7761 /* VM will use a non-zero first character
7762 * to indicate a HiperSockets like reporting
7763 * of the level OSA sets the first character to zero
7764 * */
7765 if (!card->info.mcl_level[0]) {
7766 sprintf(card->info.mcl_level,"%02x%02x",
7767 card->info.mcl_level[2],
7768 card->info.mcl_level[3]);
7769
7770 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7771 break;
7772 }
7773 /* fallthrough */
7774 case QETH_CARD_TYPE_IQD:
7775 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7776 card->info.mcl_level[0]];
7777 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7778 card->info.mcl_level[1]];
7779 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7780 card->info.mcl_level[2]];
7781 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7782 card->info.mcl_level[3]];
7783 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7784 break;
7785 default:
7786 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7787 }
7788 if (card->info.portname_required)
7789 qeth_print_status_with_portname(card);
7790 else
7791 qeth_print_status_no_portname(card);
7792 }
7793
7794 static int
7795 qeth_register_netdev(struct qeth_card *card)
7796 {
7797 QETH_DBF_TEXT(setup, 3, "regnetd");
7798 if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7799 qeth_netdev_init(card->dev);
7800 return 0;
7801 }
7802 /* sysfs magic */
7803 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7804 return register_netdev(card->dev);
7805 }
7806
7807 static void
7808 qeth_start_again(struct qeth_card *card, int recovery_mode)
7809 {
7810 QETH_DBF_TEXT(setup ,2, "startag");
7811
7812 if (recovery_mode &&
7813 card->info.type != QETH_CARD_TYPE_OSN) {
7814 qeth_open(card->dev);
7815 } else {
7816 rtnl_lock();
7817 dev_open(card->dev);
7818 rtnl_unlock();
7819 }
7820 /* this also sets saved unicast addresses */
7821 qeth_set_multicast_list(card->dev);
7822 }
7823
7824
7825 /* Layer 2 specific stuff */
7826 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7827 if (card->options.option == value) { \
7828 PRINT_ERR("%s not supported with layer 2 " \
7829 "functionality, ignoring option on read" \
7830 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7831 card->options.option = reset_value; \
7832 }
7833 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7834 if (card->options.option != value) { \
7835 PRINT_ERR("%s not supported with layer 2 " \
7836 "functionality, ignoring option on read" \
7837 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7838 card->options.option = reset_value; \
7839 }
7840
7841
7842 static void qeth_make_parameters_consistent(struct qeth_card *card)
7843 {
7844
7845 if (card->options.layer2 == 0)
7846 return;
7847 if (card->info.type == QETH_CARD_TYPE_OSN)
7848 return;
7849 if (card->info.type == QETH_CARD_TYPE_IQD) {
7850 PRINT_ERR("Device %s does not support layer 2 functionality." \
7851 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7852 card->options.layer2 = 0;
7853 return;
7854 }
7855 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7856 "Routing options are");
7857 #ifdef CONFIG_QETH_IPV6
7858 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7859 "Routing options are");
7860 #endif
7861 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7862 QETH_CHECKSUM_DEFAULT,
7863 "Checksumming options are");
7864 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7865 QETH_TR_BROADCAST_ALLRINGS,
7866 "Broadcast mode options are");
7867 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7868 QETH_TR_MACADDR_NONCANONICAL,
7869 "Canonical MAC addr options are");
7870 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7871 "Broadcast faking options are");
7872 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7873 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7874 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7875 }
7876
7877
7878 static int
7879 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7880 {
7881 struct qeth_card *card = gdev->dev.driver_data;
7882 int rc = 0;
7883 enum qeth_card_states recover_flag;
7884
7885 BUG_ON(!card);
7886 QETH_DBF_TEXT(setup ,2, "setonlin");
7887 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7888
7889 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7890 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7891 PRINT_WARN("set_online of card %s interrupted by user!\n",
7892 CARD_BUS_ID(card));
7893 return -ERESTARTSYS;
7894 }
7895
7896 recover_flag = card->state;
7897 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7898 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7899 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7900 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7901 return -EIO;
7902 }
7903
7904 qeth_make_parameters_consistent(card);
7905
7906 if ((rc = qeth_hardsetup_card(card))){
7907 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7908 goto out_remove;
7909 }
7910 card->state = CARD_STATE_HARDSETUP;
7911
7912 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7913 rc = qeth_get_unique_id(card);
7914
7915 if (rc && card->options.layer2 == 0) {
7916 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7917 goto out_remove;
7918 }
7919 qeth_print_status_message(card);
7920 if ((rc = qeth_register_netdev(card))){
7921 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7922 goto out_remove;
7923 }
7924 if ((rc = qeth_softsetup_card(card))){
7925 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7926 goto out_remove;
7927 }
7928 card->state = CARD_STATE_SOFTSETUP;
7929
7930 if ((rc = qeth_init_qdio_queues(card))){
7931 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7932 goto out_remove;
7933 }
7934 netif_carrier_on(card->dev);
7935
7936 qeth_set_allowed_threads(card, 0xffffffff, 0);
7937 if (recover_flag == CARD_STATE_RECOVER)
7938 qeth_start_again(card, recovery_mode);
7939 qeth_notify_processes();
7940 return 0;
7941 out_remove:
7942 card->use_hard_stop = 1;
7943 qeth_stop_card(card, 0);
7944 ccw_device_set_offline(CARD_DDEV(card));
7945 ccw_device_set_offline(CARD_WDEV(card));
7946 ccw_device_set_offline(CARD_RDEV(card));
7947 if (recover_flag == CARD_STATE_RECOVER)
7948 card->state = CARD_STATE_RECOVER;
7949 else
7950 card->state = CARD_STATE_DOWN;
7951 return -ENODEV;
7952 }
7953
7954 static int
7955 qeth_set_online(struct ccwgroup_device *gdev)
7956 {
7957 return __qeth_set_online(gdev, 0);
7958 }
7959
7960 static struct ccw_device_id qeth_ids[] = {
7961 {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7962 {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7963 {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
7964 {},
7965 };
7966 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7967
7968 struct device *qeth_root_dev = NULL;
7969
7970 struct ccwgroup_driver qeth_ccwgroup_driver = {
7971 .owner = THIS_MODULE,
7972 .name = "qeth",
7973 .driver_id = 0xD8C5E3C8,
7974 .probe = qeth_probe_device,
7975 .remove = qeth_remove_device,
7976 .set_online = qeth_set_online,
7977 .set_offline = qeth_set_offline,
7978 };
7979
7980 struct ccw_driver qeth_ccw_driver = {
7981 .name = "qeth",
7982 .ids = qeth_ids,
7983 .probe = ccwgroup_probe_ccwdev,
7984 .remove = ccwgroup_remove_ccwdev,
7985 };
7986
7987
7988 static void
7989 qeth_unregister_dbf_views(void)
7990 {
7991 if (qeth_dbf_setup)
7992 debug_unregister(qeth_dbf_setup);
7993 if (qeth_dbf_qerr)
7994 debug_unregister(qeth_dbf_qerr);
7995 if (qeth_dbf_sense)
7996 debug_unregister(qeth_dbf_sense);
7997 if (qeth_dbf_misc)
7998 debug_unregister(qeth_dbf_misc);
7999 if (qeth_dbf_data)
8000 debug_unregister(qeth_dbf_data);
8001 if (qeth_dbf_control)
8002 debug_unregister(qeth_dbf_control);
8003 if (qeth_dbf_trace)
8004 debug_unregister(qeth_dbf_trace);
8005 }
8006 static int
8007 qeth_register_dbf_views(void)
8008 {
8009 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8010 QETH_DBF_SETUP_PAGES,
8011 QETH_DBF_SETUP_NR_AREAS,
8012 QETH_DBF_SETUP_LEN);
8013 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8014 QETH_DBF_MISC_PAGES,
8015 QETH_DBF_MISC_NR_AREAS,
8016 QETH_DBF_MISC_LEN);
8017 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8018 QETH_DBF_DATA_PAGES,
8019 QETH_DBF_DATA_NR_AREAS,
8020 QETH_DBF_DATA_LEN);
8021 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8022 QETH_DBF_CONTROL_PAGES,
8023 QETH_DBF_CONTROL_NR_AREAS,
8024 QETH_DBF_CONTROL_LEN);
8025 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8026 QETH_DBF_SENSE_PAGES,
8027 QETH_DBF_SENSE_NR_AREAS,
8028 QETH_DBF_SENSE_LEN);
8029 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8030 QETH_DBF_QERR_PAGES,
8031 QETH_DBF_QERR_NR_AREAS,
8032 QETH_DBF_QERR_LEN);
8033 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8034 QETH_DBF_TRACE_PAGES,
8035 QETH_DBF_TRACE_NR_AREAS,
8036 QETH_DBF_TRACE_LEN);
8037
8038 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
8039 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
8040 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
8041 (qeth_dbf_trace == NULL)) {
8042 qeth_unregister_dbf_views();
8043 return -ENOMEM;
8044 }
8045 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8046 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8047
8048 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8049 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8050
8051 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8052 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8053
8054 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8055 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8056
8057 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8058 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8059
8060 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8061 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8062
8063 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8064 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8065
8066 return 0;
8067 }
8068
8069 #ifdef CONFIG_QETH_IPV6
8070 extern struct neigh_table arp_tbl;
8071 static struct neigh_ops *arp_direct_ops;
8072 static int (*qeth_old_arp_constructor) (struct neighbour *);
8073
8074 static struct neigh_ops arp_direct_ops_template = {
8075 .family = AF_INET,
8076 .destructor = NULL,
8077 .solicit = NULL,
8078 .error_report = NULL,
8079 .output = dev_queue_xmit,
8080 .connected_output = dev_queue_xmit,
8081 .hh_output = dev_queue_xmit,
8082 .queue_xmit = dev_queue_xmit
8083 };
8084
8085 static int
8086 qeth_arp_constructor(struct neighbour *neigh)
8087 {
8088 struct net_device *dev = neigh->dev;
8089 struct in_device *in_dev;
8090 struct neigh_parms *parms;
8091 struct qeth_card *card;
8092
8093 card = qeth_get_card_from_dev(dev);
8094 if (card == NULL)
8095 goto out;
8096 if((card->options.layer2) ||
8097 (card->dev->hard_header == qeth_fake_header))
8098 goto out;
8099
8100 rcu_read_lock();
8101 in_dev = __in_dev_get_rcu(dev);
8102 if (in_dev == NULL) {
8103 rcu_read_unlock();
8104 return -EINVAL;
8105 }
8106
8107 parms = in_dev->arp_parms;
8108 __neigh_parms_put(neigh->parms);
8109 neigh->parms = neigh_parms_clone(parms);
8110 rcu_read_unlock();
8111
8112 neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8113 neigh->nud_state = NUD_NOARP;
8114 neigh->ops = arp_direct_ops;
8115 neigh->output = neigh->ops->queue_xmit;
8116 return 0;
8117 out:
8118 return qeth_old_arp_constructor(neigh);
8119 }
8120 #endif /*CONFIG_QETH_IPV6*/
8121
8122 /*
8123 * IP address takeover related functions
8124 */
8125 static void
8126 qeth_clear_ipato_list(struct qeth_card *card)
8127 {
8128 struct qeth_ipato_entry *ipatoe, *tmp;
8129 unsigned long flags;
8130
8131 spin_lock_irqsave(&card->ip_lock, flags);
8132 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8133 list_del(&ipatoe->entry);
8134 kfree(ipatoe);
8135 }
8136 spin_unlock_irqrestore(&card->ip_lock, flags);
8137 }
8138
8139 int
8140 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8141 {
8142 struct qeth_ipato_entry *ipatoe;
8143 unsigned long flags;
8144 int rc = 0;
8145
8146 QETH_DBF_TEXT(trace, 2, "addipato");
8147 spin_lock_irqsave(&card->ip_lock, flags);
8148 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8149 if (ipatoe->proto != new->proto)
8150 continue;
8151 if (!memcmp(ipatoe->addr, new->addr,
8152 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8153 (ipatoe->mask_bits == new->mask_bits)){
8154 PRINT_WARN("ipato entry already exists!\n");
8155 rc = -EEXIST;
8156 break;
8157 }
8158 }
8159 if (!rc) {
8160 list_add_tail(&new->entry, &card->ipato.entries);
8161 }
8162 spin_unlock_irqrestore(&card->ip_lock, flags);
8163 return rc;
8164 }
8165
8166 void
8167 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8168 u8 *addr, int mask_bits)
8169 {
8170 struct qeth_ipato_entry *ipatoe, *tmp;
8171 unsigned long flags;
8172
8173 QETH_DBF_TEXT(trace, 2, "delipato");
8174 spin_lock_irqsave(&card->ip_lock, flags);
8175 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8176 if (ipatoe->proto != proto)
8177 continue;
8178 if (!memcmp(ipatoe->addr, addr,
8179 (proto == QETH_PROT_IPV4)? 4:16) &&
8180 (ipatoe->mask_bits == mask_bits)){
8181 list_del(&ipatoe->entry);
8182 kfree(ipatoe);
8183 }
8184 }
8185 spin_unlock_irqrestore(&card->ip_lock, flags);
8186 }
8187
8188 static inline void
8189 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8190 {
8191 int i, j;
8192 u8 octet;
8193
8194 for (i = 0; i < len; ++i){
8195 octet = addr[i];
8196 for (j = 7; j >= 0; --j){
8197 bits[i*8 + j] = octet & 1;
8198 octet >>= 1;
8199 }
8200 }
8201 }
8202
8203 static int
8204 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8205 {
8206 struct qeth_ipato_entry *ipatoe;
8207 u8 addr_bits[128] = {0, };
8208 u8 ipatoe_bits[128] = {0, };
8209 int rc = 0;
8210
8211 if (!card->ipato.enabled)
8212 return 0;
8213
8214 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8215 (addr->proto == QETH_PROT_IPV4)? 4:16);
8216 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8217 if (addr->proto != ipatoe->proto)
8218 continue;
8219 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8220 (ipatoe->proto==QETH_PROT_IPV4) ?
8221 4:16);
8222 if (addr->proto == QETH_PROT_IPV4)
8223 rc = !memcmp(addr_bits, ipatoe_bits,
8224 min(32, ipatoe->mask_bits));
8225 else
8226 rc = !memcmp(addr_bits, ipatoe_bits,
8227 min(128, ipatoe->mask_bits));
8228 if (rc)
8229 break;
8230 }
8231 /* invert? */
8232 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8233 rc = !rc;
8234 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8235 rc = !rc;
8236
8237 return rc;
8238 }
8239
8240 /*
8241 * VIPA related functions
8242 */
8243 int
8244 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8245 const u8 *addr)
8246 {
8247 struct qeth_ipaddr *ipaddr;
8248 unsigned long flags;
8249 int rc = 0;
8250
8251 ipaddr = qeth_get_addr_buffer(proto);
8252 if (ipaddr){
8253 if (proto == QETH_PROT_IPV4){
8254 QETH_DBF_TEXT(trace, 2, "addvipa4");
8255 memcpy(&ipaddr->u.a4.addr, addr, 4);
8256 ipaddr->u.a4.mask = 0;
8257 #ifdef CONFIG_QETH_IPV6
8258 } else if (proto == QETH_PROT_IPV6){
8259 QETH_DBF_TEXT(trace, 2, "addvipa6");
8260 memcpy(&ipaddr->u.a6.addr, addr, 16);
8261 ipaddr->u.a6.pfxlen = 0;
8262 #endif
8263 }
8264 ipaddr->type = QETH_IP_TYPE_VIPA;
8265 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8266 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8267 } else
8268 return -ENOMEM;
8269 spin_lock_irqsave(&card->ip_lock, flags);
8270 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8271 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8272 rc = -EEXIST;
8273 spin_unlock_irqrestore(&card->ip_lock, flags);
8274 if (rc){
8275 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8276 return rc;
8277 }
8278 if (!qeth_add_ip(card, ipaddr))
8279 kfree(ipaddr);
8280 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8281 schedule_work(&card->kernel_thread_starter);
8282 return rc;
8283 }
8284
8285 void
8286 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8287 const u8 *addr)
8288 {
8289 struct qeth_ipaddr *ipaddr;
8290
8291 ipaddr = qeth_get_addr_buffer(proto);
8292 if (ipaddr){
8293 if (proto == QETH_PROT_IPV4){
8294 QETH_DBF_TEXT(trace, 2, "delvipa4");
8295 memcpy(&ipaddr->u.a4.addr, addr, 4);
8296 ipaddr->u.a4.mask = 0;
8297 #ifdef CONFIG_QETH_IPV6
8298 } else if (proto == QETH_PROT_IPV6){
8299 QETH_DBF_TEXT(trace, 2, "delvipa6");
8300 memcpy(&ipaddr->u.a6.addr, addr, 16);
8301 ipaddr->u.a6.pfxlen = 0;
8302 #endif
8303 }
8304 ipaddr->type = QETH_IP_TYPE_VIPA;
8305 } else
8306 return;
8307 if (!qeth_delete_ip(card, ipaddr))
8308 kfree(ipaddr);
8309 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8310 schedule_work(&card->kernel_thread_starter);
8311 }
8312
8313 /*
8314 * proxy ARP related functions
8315 */
8316 int
8317 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8318 const u8 *addr)
8319 {
8320 struct qeth_ipaddr *ipaddr;
8321 unsigned long flags;
8322 int rc = 0;
8323
8324 ipaddr = qeth_get_addr_buffer(proto);
8325 if (ipaddr){
8326 if (proto == QETH_PROT_IPV4){
8327 QETH_DBF_TEXT(trace, 2, "addrxip4");
8328 memcpy(&ipaddr->u.a4.addr, addr, 4);
8329 ipaddr->u.a4.mask = 0;
8330 #ifdef CONFIG_QETH_IPV6
8331 } else if (proto == QETH_PROT_IPV6){
8332 QETH_DBF_TEXT(trace, 2, "addrxip6");
8333 memcpy(&ipaddr->u.a6.addr, addr, 16);
8334 ipaddr->u.a6.pfxlen = 0;
8335 #endif
8336 }
8337 ipaddr->type = QETH_IP_TYPE_RXIP;
8338 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8339 ipaddr->del_flags = 0;
8340 } else
8341 return -ENOMEM;
8342 spin_lock_irqsave(&card->ip_lock, flags);
8343 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8344 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8345 rc = -EEXIST;
8346 spin_unlock_irqrestore(&card->ip_lock, flags);
8347 if (rc){
8348 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8349 return rc;
8350 }
8351 if (!qeth_add_ip(card, ipaddr))
8352 kfree(ipaddr);
8353 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8354 schedule_work(&card->kernel_thread_starter);
8355 return 0;
8356 }
8357
8358 void
8359 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8360 const u8 *addr)
8361 {
8362 struct qeth_ipaddr *ipaddr;
8363
8364 ipaddr = qeth_get_addr_buffer(proto);
8365 if (ipaddr){
8366 if (proto == QETH_PROT_IPV4){
8367 QETH_DBF_TEXT(trace, 2, "addrxip4");
8368 memcpy(&ipaddr->u.a4.addr, addr, 4);
8369 ipaddr->u.a4.mask = 0;
8370 #ifdef CONFIG_QETH_IPV6
8371 } else if (proto == QETH_PROT_IPV6){
8372 QETH_DBF_TEXT(trace, 2, "addrxip6");
8373 memcpy(&ipaddr->u.a6.addr, addr, 16);
8374 ipaddr->u.a6.pfxlen = 0;
8375 #endif
8376 }
8377 ipaddr->type = QETH_IP_TYPE_RXIP;
8378 } else
8379 return;
8380 if (!qeth_delete_ip(card, ipaddr))
8381 kfree(ipaddr);
8382 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8383 schedule_work(&card->kernel_thread_starter);
8384 }
8385
8386 /**
8387 * IP event handler
8388 */
8389 static int
8390 qeth_ip_event(struct notifier_block *this,
8391 unsigned long event,void *ptr)
8392 {
8393 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8394 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8395 struct qeth_ipaddr *addr;
8396 struct qeth_card *card;
8397
8398 QETH_DBF_TEXT(trace,3,"ipevent");
8399 card = qeth_get_card_from_dev(dev);
8400 if (!card)
8401 return NOTIFY_DONE;
8402 if (card->options.layer2)
8403 return NOTIFY_DONE;
8404
8405 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8406 if (addr != NULL) {
8407 addr->u.a4.addr = ifa->ifa_address;
8408 addr->u.a4.mask = ifa->ifa_mask;
8409 addr->type = QETH_IP_TYPE_NORMAL;
8410 } else
8411 goto out;
8412
8413 switch(event) {
8414 case NETDEV_UP:
8415 if (!qeth_add_ip(card, addr))
8416 kfree(addr);
8417 break;
8418 case NETDEV_DOWN:
8419 if (!qeth_delete_ip(card, addr))
8420 kfree(addr);
8421 break;
8422 default:
8423 break;
8424 }
8425 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8426 schedule_work(&card->kernel_thread_starter);
8427 out:
8428 return NOTIFY_DONE;
8429 }
8430
8431 static struct notifier_block qeth_ip_notifier = {
8432 qeth_ip_event,
8433 0
8434 };
8435
8436 #ifdef CONFIG_QETH_IPV6
8437 /**
8438 * IPv6 event handler
8439 */
8440 static int
8441 qeth_ip6_event(struct notifier_block *this,
8442 unsigned long event,void *ptr)
8443 {
8444
8445 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8446 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8447 struct qeth_ipaddr *addr;
8448 struct qeth_card *card;
8449
8450 QETH_DBF_TEXT(trace,3,"ip6event");
8451
8452 card = qeth_get_card_from_dev(dev);
8453 if (!card)
8454 return NOTIFY_DONE;
8455 if (!qeth_is_supported(card, IPA_IPV6))
8456 return NOTIFY_DONE;
8457
8458 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8459 if (addr != NULL) {
8460 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8461 addr->u.a6.pfxlen = ifa->prefix_len;
8462 addr->type = QETH_IP_TYPE_NORMAL;
8463 } else
8464 goto out;
8465
8466 switch(event) {
8467 case NETDEV_UP:
8468 if (!qeth_add_ip(card, addr))
8469 kfree(addr);
8470 break;
8471 case NETDEV_DOWN:
8472 if (!qeth_delete_ip(card, addr))
8473 kfree(addr);
8474 break;
8475 default:
8476 break;
8477 }
8478 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8479 schedule_work(&card->kernel_thread_starter);
8480 out:
8481 return NOTIFY_DONE;
8482 }
8483
8484 static struct notifier_block qeth_ip6_notifier = {
8485 qeth_ip6_event,
8486 0
8487 };
8488 #endif
8489
8490 static int
8491 __qeth_reboot_event_card(struct device *dev, void *data)
8492 {
8493 struct qeth_card *card;
8494
8495 card = (struct qeth_card *) dev->driver_data;
8496 qeth_clear_ip_list(card, 0, 0);
8497 qeth_qdio_clear_card(card, 0);
8498 return 0;
8499 }
8500
8501 static int
8502 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8503 {
8504
8505 driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8506 __qeth_reboot_event_card);
8507 return NOTIFY_DONE;
8508 }
8509
8510
8511 static struct notifier_block qeth_reboot_notifier = {
8512 qeth_reboot_event,
8513 0
8514 };
8515
8516 static int
8517 qeth_register_notifiers(void)
8518 {
8519 int r;
8520
8521 QETH_DBF_TEXT(trace,5,"regnotif");
8522 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8523 return r;
8524 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8525 goto out_reboot;
8526 #ifdef CONFIG_QETH_IPV6
8527 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8528 goto out_ipv4;
8529 #endif
8530 return 0;
8531
8532 #ifdef CONFIG_QETH_IPV6
8533 out_ipv4:
8534 unregister_inetaddr_notifier(&qeth_ip_notifier);
8535 #endif
8536 out_reboot:
8537 unregister_reboot_notifier(&qeth_reboot_notifier);
8538 return r;
8539 }
8540
8541 /**
8542 * unregister all event notifiers
8543 */
8544 static void
8545 qeth_unregister_notifiers(void)
8546 {
8547
8548 QETH_DBF_TEXT(trace,5,"unregnot");
8549 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8550 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8551 #ifdef CONFIG_QETH_IPV6
8552 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8553 #endif /* QETH_IPV6 */
8554
8555 }
8556
8557 #ifdef CONFIG_QETH_IPV6
8558 static int
8559 qeth_ipv6_init(void)
8560 {
8561 qeth_old_arp_constructor = arp_tbl.constructor;
8562 write_lock(&arp_tbl.lock);
8563 arp_tbl.constructor = qeth_arp_constructor;
8564 write_unlock(&arp_tbl.lock);
8565
8566 arp_direct_ops = (struct neigh_ops*)
8567 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8568 if (!arp_direct_ops)
8569 return -ENOMEM;
8570
8571 memcpy(arp_direct_ops, &arp_direct_ops_template,
8572 sizeof(struct neigh_ops));
8573
8574 return 0;
8575 }
8576
8577 static void
8578 qeth_ipv6_uninit(void)
8579 {
8580 write_lock(&arp_tbl.lock);
8581 arp_tbl.constructor = qeth_old_arp_constructor;
8582 write_unlock(&arp_tbl.lock);
8583 kfree(arp_direct_ops);
8584 }
8585 #endif /* CONFIG_QETH_IPV6 */
8586
8587 static void
8588 qeth_sysfs_unregister(void)
8589 {
8590 qeth_remove_driver_attributes();
8591 ccw_driver_unregister(&qeth_ccw_driver);
8592 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8593 s390_root_dev_unregister(qeth_root_dev);
8594 }
8595 /**
8596 * register qeth at sysfs
8597 */
8598 static int
8599 qeth_sysfs_register(void)
8600 {
8601 int rc=0;
8602
8603 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8604 if (rc)
8605 return rc;
8606 rc = ccw_driver_register(&qeth_ccw_driver);
8607 if (rc)
8608 return rc;
8609 rc = qeth_create_driver_attributes();
8610 if (rc)
8611 return rc;
8612 qeth_root_dev = s390_root_dev_register("qeth");
8613 if (IS_ERR(qeth_root_dev)) {
8614 rc = PTR_ERR(qeth_root_dev);
8615 return rc;
8616 }
8617 return 0;
8618 }
8619
8620 /***
8621 * init function
8622 */
8623 static int __init
8624 qeth_init(void)
8625 {
8626 int rc=0;
8627
8628 PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
8629 version, VERSION_QETH_C, VERSION_QETH_H,
8630 VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
8631 VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
8632 VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
8633 QETH_VERSION_VLAN);
8634
8635 INIT_LIST_HEAD(&qeth_card_list.list);
8636 INIT_LIST_HEAD(&qeth_notify_list);
8637 spin_lock_init(&qeth_notify_lock);
8638 rwlock_init(&qeth_card_list.rwlock);
8639
8640 if (qeth_register_dbf_views())
8641 goto out_err;
8642 if (qeth_sysfs_register())
8643 goto out_sysfs;
8644
8645 #ifdef CONFIG_QETH_IPV6
8646 if (qeth_ipv6_init()) {
8647 PRINT_ERR("Out of memory during ipv6 init.\n");
8648 goto out_sysfs;
8649 }
8650 #endif /* QETH_IPV6 */
8651 if (qeth_register_notifiers())
8652 goto out_ipv6;
8653 if (qeth_create_procfs_entries())
8654 goto out_notifiers;
8655
8656 return rc;
8657
8658 out_notifiers:
8659 qeth_unregister_notifiers();
8660 out_ipv6:
8661 #ifdef CONFIG_QETH_IPV6
8662 qeth_ipv6_uninit();
8663 #endif /* QETH_IPV6 */
8664 out_sysfs:
8665 qeth_sysfs_unregister();
8666 qeth_unregister_dbf_views();
8667 out_err:
8668 PRINT_ERR("Initialization failed");
8669 return rc;
8670 }
8671
8672 static void
8673 __exit qeth_exit(void)
8674 {
8675 struct qeth_card *card, *tmp;
8676 unsigned long flags;
8677
8678 QETH_DBF_TEXT(trace,1, "cleanup.");
8679
8680 /*
8681 * Weed would not need to clean up our devices here, because the
8682 * common device layer calls qeth_remove_device for each device
8683 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8684 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8685 * qeth_remove_device called by the common device layer would otherwise
8686 * do a "hard" shutdown (card->use_hard_stop is set to one in
8687 * qeth_remove_device).
8688 */
8689 again:
8690 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8691 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8692 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8693 qeth_set_offline(card->gdev);
8694 qeth_remove_device(card->gdev);
8695 goto again;
8696 }
8697 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8698 #ifdef CONFIG_QETH_IPV6
8699 qeth_ipv6_uninit();
8700 #endif
8701 qeth_unregister_notifiers();
8702 qeth_remove_procfs_entries();
8703 qeth_sysfs_unregister();
8704 qeth_unregister_dbf_views();
8705 printk("qeth: removed\n");
8706 }
8707
8708 EXPORT_SYMBOL(qeth_osn_register);
8709 EXPORT_SYMBOL(qeth_osn_deregister);
8710 EXPORT_SYMBOL(qeth_osn_assist);
8711 module_init(qeth_init);
8712 module_exit(qeth_exit);
8713 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8714 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8715 "Copyright 2000,2003 IBM Corporation\n");
8716
8717 MODULE_LICENSE("GPL");
kmemtrace - Kernel memory tracer