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[PATCH] s390: move var declarations behind ifdef
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / s390 / net / qeth_main.c
blob4caced21ac8c59d054d132c93f7801cfccefa1a9
1 /*
2 * linux/drivers/s390/net/qeth_main.c
3 *
4 * Linux on zSeries OSA Express and HiperSockets support
5 *
6 * Copyright 2000,2003 IBM Corporation
7 *
8 * Author(s): Original Code written by
9 * Utz Bacher (utz.bacher@de.ibm.com)
10 * Rewritten by
11 * Frank Pavlic (fpavlic@de.ibm.com) and
12 * Thomas Spatzier <tspat@de.ibm.com>
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
29
30 #include <linux/module.h>
31 #include <linux/moduleparam.h>
32 #include <linux/string.h>
33 #include <linux/errno.h>
34 #include <linux/mm.h>
35 #include <linux/ip.h>
36 #include <linux/inetdevice.h>
37 #include <linux/netdevice.h>
38 #include <linux/sched.h>
39 #include <linux/workqueue.h>
40 #include <linux/kernel.h>
41 #include <linux/slab.h>
42 #include <linux/interrupt.h>
43 #include <linux/tcp.h>
44 #include <linux/icmp.h>
45 #include <linux/skbuff.h>
46 #include <linux/in.h>
47 #include <linux/igmp.h>
48 #include <linux/init.h>
49 #include <linux/reboot.h>
50 #include <linux/mii.h>
51 #include <linux/rcupdate.h>
52 #include <linux/ethtool.h>
53
54 #include <net/arp.h>
55 #include <net/ip.h>
56 #include <net/route.h>
57
58 #include <asm/ebcdic.h>
59 #include <asm/io.h>
60 #include <asm/qeth.h>
61 #include <asm/timex.h>
62 #include <asm/semaphore.h>
63 #include <asm/uaccess.h>
64 #include <asm/s390_rdev.h>
65
66 #include "qeth.h"
67 #include "qeth_mpc.h"
68 #include "qeth_fs.h"
69 #include "qeth_eddp.h"
70 #include "qeth_tso.h"
71
72 static const char *version = "qeth S/390 OSA-Express driver";
73
74 /**
75 * Debug Facility Stuff
76 */
77 static debug_info_t *qeth_dbf_setup = NULL;
78 static debug_info_t *qeth_dbf_data = NULL;
79 static debug_info_t *qeth_dbf_misc = NULL;
80 static debug_info_t *qeth_dbf_control = NULL;
81 debug_info_t *qeth_dbf_trace = NULL;
82 static debug_info_t *qeth_dbf_sense = NULL;
83 static debug_info_t *qeth_dbf_qerr = NULL;
84
85 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
86
87 static struct lock_class_key qdio_out_skb_queue_key;
88
89 /**
90 * some more definitions and declarations
91 */
92 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
93
94 /* list of our cards */
95 struct qeth_card_list_struct qeth_card_list;
96 /*process list want to be notified*/
97 spinlock_t qeth_notify_lock;
98 struct list_head qeth_notify_list;
99
100 static void qeth_send_control_data_cb(struct qeth_channel *,
101 struct qeth_cmd_buffer *);
102
103 /**
104 * here we go with function implementation
105 */
106 static void
107 qeth_init_qdio_info(struct qeth_card *card);
108
109 static int
110 qeth_init_qdio_queues(struct qeth_card *card);
111
112 static int
113 qeth_alloc_qdio_buffers(struct qeth_card *card);
114
115 static void
116 qeth_free_qdio_buffers(struct qeth_card *);
117
118 static void
119 qeth_clear_qdio_buffers(struct qeth_card *);
120
121 static void
122 qeth_clear_ip_list(struct qeth_card *, int, int);
123
124 static void
125 qeth_clear_ipacmd_list(struct qeth_card *);
126
127 static int
128 qeth_qdio_clear_card(struct qeth_card *, int);
129
130 static void
131 qeth_clear_working_pool_list(struct qeth_card *);
132
133 static void
134 qeth_clear_cmd_buffers(struct qeth_channel *);
135
136 static int
137 qeth_stop(struct net_device *);
138
139 static void
140 qeth_clear_ipato_list(struct qeth_card *);
141
142 static int
143 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
144
145 static void
146 qeth_irq_tasklet(unsigned long);
147
148 static int
149 qeth_set_online(struct ccwgroup_device *);
150
151 static int
152 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
153
154 static struct qeth_ipaddr *
155 qeth_get_addr_buffer(enum qeth_prot_versions);
156
157 static void
158 qeth_set_multicast_list(struct net_device *);
159
160 static void
161 qeth_setadp_promisc_mode(struct qeth_card *);
162
163 static void
164 qeth_notify_processes(void)
165 {
166 /*notify all registered processes */
167 struct qeth_notify_list_struct *n_entry;
168
169 QETH_DBF_TEXT(trace,3,"procnoti");
170 spin_lock(&qeth_notify_lock);
171 list_for_each_entry(n_entry, &qeth_notify_list, list) {
172 send_sig(n_entry->signum, n_entry->task, 1);
173 }
174 spin_unlock(&qeth_notify_lock);
175
176 }
177 int
178 qeth_notifier_unregister(struct task_struct *p)
179 {
180 struct qeth_notify_list_struct *n_entry, *tmp;
181
182 QETH_DBF_TEXT(trace, 2, "notunreg");
183 spin_lock(&qeth_notify_lock);
184 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
185 if (n_entry->task == p) {
186 list_del(&n_entry->list);
187 kfree(n_entry);
188 goto out;
189 }
190 }
191 out:
192 spin_unlock(&qeth_notify_lock);
193 return 0;
194 }
195 int
196 qeth_notifier_register(struct task_struct *p, int signum)
197 {
198 struct qeth_notify_list_struct *n_entry;
199
200 /*check first if entry already exists*/
201 spin_lock(&qeth_notify_lock);
202 list_for_each_entry(n_entry, &qeth_notify_list, list) {
203 if (n_entry->task == p) {
204 n_entry->signum = signum;
205 spin_unlock(&qeth_notify_lock);
206 return 0;
207 }
208 }
209 spin_unlock(&qeth_notify_lock);
210
211 n_entry = (struct qeth_notify_list_struct *)
212 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
213 if (!n_entry)
214 return -ENOMEM;
215 n_entry->task = p;
216 n_entry->signum = signum;
217 spin_lock(&qeth_notify_lock);
218 list_add(&n_entry->list,&qeth_notify_list);
219 spin_unlock(&qeth_notify_lock);
220 return 0;
221 }
222
223
224 /**
225 * free channel command buffers
226 */
227 static void
228 qeth_clean_channel(struct qeth_channel *channel)
229 {
230 int cnt;
231
232 QETH_DBF_TEXT(setup, 2, "freech");
233 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
234 kfree(channel->iob[cnt].data);
235 }
236
237 /**
238 * free card
239 */
240 static void
241 qeth_free_card(struct qeth_card *card)
242 {
243
244 QETH_DBF_TEXT(setup, 2, "freecrd");
245 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
246 qeth_clean_channel(&card->read);
247 qeth_clean_channel(&card->write);
248 if (card->dev)
249 free_netdev(card->dev);
250 qeth_clear_ip_list(card, 0, 0);
251 qeth_clear_ipato_list(card);
252 kfree(card->ip_tbd_list);
253 qeth_free_qdio_buffers(card);
254 kfree(card);
255 }
256
257 /**
258 * alloc memory for command buffer per channel
259 */
260 static int
261 qeth_setup_channel(struct qeth_channel *channel)
262 {
263 int cnt;
264
265 QETH_DBF_TEXT(setup, 2, "setupch");
266 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
267 channel->iob[cnt].data = (char *)
268 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
269 if (channel->iob[cnt].data == NULL)
270 break;
271 channel->iob[cnt].state = BUF_STATE_FREE;
272 channel->iob[cnt].channel = channel;
273 channel->iob[cnt].callback = qeth_send_control_data_cb;
274 channel->iob[cnt].rc = 0;
275 }
276 if (cnt < QETH_CMD_BUFFER_NO) {
277 while (cnt-- > 0)
278 kfree(channel->iob[cnt].data);
279 return -ENOMEM;
280 }
281 channel->buf_no = 0;
282 channel->io_buf_no = 0;
283 atomic_set(&channel->irq_pending, 0);
284 spin_lock_init(&channel->iob_lock);
285
286 init_waitqueue_head(&channel->wait_q);
287 channel->irq_tasklet.data = (unsigned long) channel;
288 channel->irq_tasklet.func = qeth_irq_tasklet;
289 return 0;
290 }
291
292 /**
293 * alloc memory for card structure
294 */
295 static struct qeth_card *
296 qeth_alloc_card(void)
297 {
298 struct qeth_card *card;
299
300 QETH_DBF_TEXT(setup, 2, "alloccrd");
301 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
302 if (!card)
303 return NULL;
304 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
305 if (qeth_setup_channel(&card->read)) {
306 kfree(card);
307 return NULL;
308 }
309 if (qeth_setup_channel(&card->write)) {
310 qeth_clean_channel(&card->read);
311 kfree(card);
312 return NULL;
313 }
314 return card;
315 }
316
317 static long
318 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
319 {
320 if (!IS_ERR(irb))
321 return 0;
322
323 switch (PTR_ERR(irb)) {
324 case -EIO:
325 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
326 QETH_DBF_TEXT(trace, 2, "ckirberr");
327 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
328 break;
329 case -ETIMEDOUT:
330 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
331 QETH_DBF_TEXT(trace, 2, "ckirberr");
332 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
333 break;
334 default:
335 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
336 cdev->dev.bus_id);
337 QETH_DBF_TEXT(trace, 2, "ckirberr");
338 QETH_DBF_TEXT(trace, 2, " rc???");
339 }
340 return PTR_ERR(irb);
341 }
342
343 static int
344 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
345 {
346 int dstat,cstat;
347 char *sense;
348
349 sense = (char *) irb->ecw;
350 cstat = irb->scsw.cstat;
351 dstat = irb->scsw.dstat;
352
353 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
354 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
355 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
356 QETH_DBF_TEXT(trace,2, "CGENCHK");
357 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
358 cdev->dev.bus_id, dstat, cstat);
359 HEXDUMP16(WARN, "irb: ", irb);
360 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
361 return 1;
362 }
363
364 if (dstat & DEV_STAT_UNIT_CHECK) {
365 if (sense[SENSE_RESETTING_EVENT_BYTE] &
366 SENSE_RESETTING_EVENT_FLAG) {
367 QETH_DBF_TEXT(trace,2,"REVIND");
368 return 1;
369 }
370 if (sense[SENSE_COMMAND_REJECT_BYTE] &
371 SENSE_COMMAND_REJECT_FLAG) {
372 QETH_DBF_TEXT(trace,2,"CMDREJi");
373 return 0;
374 }
375 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
376 QETH_DBF_TEXT(trace,2,"AFFE");
377 return 1;
378 }
379 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
380 QETH_DBF_TEXT(trace,2,"ZEROSEN");
381 return 0;
382 }
383 QETH_DBF_TEXT(trace,2,"DGENCHK");
384 return 1;
385 }
386 return 0;
387 }
388 static int qeth_issue_next_read(struct qeth_card *);
389
390 /**
391 * interrupt handler
392 */
393 static void
394 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
395 {
396 int rc;
397 int cstat,dstat;
398 struct qeth_cmd_buffer *buffer;
399 struct qeth_channel *channel;
400 struct qeth_card *card;
401
402 QETH_DBF_TEXT(trace,5,"irq");
403
404 if (__qeth_check_irb_error(cdev, irb))
405 return;
406 cstat = irb->scsw.cstat;
407 dstat = irb->scsw.dstat;
408
409 card = CARD_FROM_CDEV(cdev);
410 if (!card)
411 return;
412
413 if (card->read.ccwdev == cdev){
414 channel = &card->read;
415 QETH_DBF_TEXT(trace,5,"read");
416 } else if (card->write.ccwdev == cdev) {
417 channel = &card->write;
418 QETH_DBF_TEXT(trace,5,"write");
419 } else {
420 channel = &card->data;
421 QETH_DBF_TEXT(trace,5,"data");
422 }
423 atomic_set(&channel->irq_pending, 0);
424
425 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
426 channel->state = CH_STATE_STOPPED;
427
428 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
429 channel->state = CH_STATE_HALTED;
430
431 /*let's wake up immediately on data channel*/
432 if ((channel == &card->data) && (intparm != 0))
433 goto out;
434
435 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
436 QETH_DBF_TEXT(trace, 6, "clrchpar");
437 /* we don't have to handle this further */
438 intparm = 0;
439 }
440 if (intparm == QETH_HALT_CHANNEL_PARM) {
441 QETH_DBF_TEXT(trace, 6, "hltchpar");
442 /* we don't have to handle this further */
443 intparm = 0;
444 }
445 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
446 (dstat & DEV_STAT_UNIT_CHECK) ||
447 (cstat)) {
448 if (irb->esw.esw0.erw.cons) {
449 /* TODO: we should make this s390dbf */
450 PRINT_WARN("sense data available on channel %s.\n",
451 CHANNEL_ID(channel));
452 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
453 HEXDUMP16(WARN,"irb: ",irb);
454 HEXDUMP16(WARN,"sense data: ",irb->ecw);
455 }
456 rc = qeth_get_problem(cdev,irb);
457 if (rc) {
458 qeth_schedule_recovery(card);
459 goto out;
460 }
461 }
462
463 if (intparm) {
464 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
465 buffer->state = BUF_STATE_PROCESSED;
466 }
467 if (channel == &card->data)
468 return;
469
470 if (channel == &card->read &&
471 channel->state == CH_STATE_UP)
472 qeth_issue_next_read(card);
473
474 tasklet_schedule(&channel->irq_tasklet);
475 return;
476 out:
477 wake_up(&card->wait_q);
478 }
479
480 /**
481 * tasklet function scheduled from irq handler
482 */
483 static void
484 qeth_irq_tasklet(unsigned long data)
485 {
486 struct qeth_card *card;
487 struct qeth_channel *channel;
488 struct qeth_cmd_buffer *iob;
489 __u8 index;
490
491 QETH_DBF_TEXT(trace,5,"irqtlet");
492 channel = (struct qeth_channel *) data;
493 iob = channel->iob;
494 index = channel->buf_no;
495 card = CARD_FROM_CDEV(channel->ccwdev);
496 while (iob[index].state == BUF_STATE_PROCESSED) {
497 if (iob[index].callback !=NULL) {
498 iob[index].callback(channel,iob + index);
499 }
500 index = (index + 1) % QETH_CMD_BUFFER_NO;
501 }
502 channel->buf_no = index;
503 wake_up(&card->wait_q);
504 }
505
506 static int qeth_stop_card(struct qeth_card *, int);
507
508 static int
509 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
510 {
511 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
512 int rc = 0, rc2 = 0, rc3 = 0;
513 enum qeth_card_states recover_flag;
514
515 QETH_DBF_TEXT(setup, 3, "setoffl");
516 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
517
518 if (card->dev && netif_carrier_ok(card->dev))
519 netif_carrier_off(card->dev);
520 recover_flag = card->state;
521 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
522 PRINT_WARN("Stopping card %s interrupted by user!\n",
523 CARD_BUS_ID(card));
524 return -ERESTARTSYS;
525 }
526 rc = ccw_device_set_offline(CARD_DDEV(card));
527 rc2 = ccw_device_set_offline(CARD_WDEV(card));
528 rc3 = ccw_device_set_offline(CARD_RDEV(card));
529 if (!rc)
530 rc = (rc2) ? rc2 : rc3;
531 if (rc)
532 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
533 if (recover_flag == CARD_STATE_UP)
534 card->state = CARD_STATE_RECOVER;
535 qeth_notify_processes();
536 return 0;
537 }
538
539 static int
540 qeth_set_offline(struct ccwgroup_device *cgdev)
541 {
542 return __qeth_set_offline(cgdev, 0);
543 }
544
545 static int
546 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
547
548
549 static void
550 qeth_remove_device(struct ccwgroup_device *cgdev)
551 {
552 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
553 unsigned long flags;
554
555 QETH_DBF_TEXT(setup, 3, "rmdev");
556 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
557
558 if (!card)
559 return;
560
561 if (qeth_wait_for_threads(card, 0xffffffff))
562 return;
563
564 if (cgdev->state == CCWGROUP_ONLINE){
565 card->use_hard_stop = 1;
566 qeth_set_offline(cgdev);
567 }
568 /* remove form our internal list */
569 write_lock_irqsave(&qeth_card_list.rwlock, flags);
570 list_del(&card->list);
571 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
572 if (card->dev)
573 unregister_netdev(card->dev);
574 qeth_remove_device_attributes(&cgdev->dev);
575 qeth_free_card(card);
576 cgdev->dev.driver_data = NULL;
577 put_device(&cgdev->dev);
578 }
579
580 static int
581 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
582 static int
583 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
584
585 /**
586 * Add/remove address to/from card's ip list, i.e. try to add or remove
587 * reference to/from an IP address that is already registered on the card.
588 * Returns:
589 * 0 address was on card and its reference count has been adjusted,
590 * but is still > 0, so nothing has to be done
591 * also returns 0 if card was not on card and the todo was to delete
592 * the address -> there is also nothing to be done
593 * 1 address was not on card and the todo is to add it to the card's ip
594 * list
595 * -1 address was on card and its reference count has been decremented
596 * to <= 0 by the todo -> address must be removed from card
597 */
598 static int
599 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
600 struct qeth_ipaddr **__addr)
601 {
602 struct qeth_ipaddr *addr;
603 int found = 0;
604
605 list_for_each_entry(addr, &card->ip_list, entry) {
606 if (card->options.layer2) {
607 if ((addr->type == todo->type) &&
608 (memcmp(&addr->mac, &todo->mac,
609 OSA_ADDR_LEN) == 0)) {
610 found = 1;
611 break;
612 }
613 continue;
614 }
615 if ((addr->proto == QETH_PROT_IPV4) &&
616 (todo->proto == QETH_PROT_IPV4) &&
617 (addr->type == todo->type) &&
618 (addr->u.a4.addr == todo->u.a4.addr) &&
619 (addr->u.a4.mask == todo->u.a4.mask)) {
620 found = 1;
621 break;
622 }
623 if ((addr->proto == QETH_PROT_IPV6) &&
624 (todo->proto == QETH_PROT_IPV6) &&
625 (addr->type == todo->type) &&
626 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
627 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
628 sizeof(struct in6_addr)) == 0)) {
629 found = 1;
630 break;
631 }
632 }
633 if (found) {
634 addr->users += todo->users;
635 if (addr->users <= 0){
636 *__addr = addr;
637 return -1;
638 } else {
639 /* for VIPA and RXIP limit refcount to 1 */
640 if (addr->type != QETH_IP_TYPE_NORMAL)
641 addr->users = 1;
642 return 0;
643 }
644 }
645 if (todo->users > 0) {
646 /* for VIPA and RXIP limit refcount to 1 */
647 if (todo->type != QETH_IP_TYPE_NORMAL)
648 todo->users = 1;
649 return 1;
650 } else
651 return 0;
652 }
653
654 static inline int
655 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
656 int same_type)
657 {
658 struct qeth_ipaddr *tmp;
659
660 list_for_each_entry(tmp, list, entry) {
661 if ((tmp->proto == QETH_PROT_IPV4) &&
662 (addr->proto == QETH_PROT_IPV4) &&
663 ((same_type && (tmp->type == addr->type)) ||
664 (!same_type && (tmp->type != addr->type)) ) &&
665 (tmp->u.a4.addr == addr->u.a4.addr) ){
666 return 1;
667 }
668 if ((tmp->proto == QETH_PROT_IPV6) &&
669 (addr->proto == QETH_PROT_IPV6) &&
670 ((same_type && (tmp->type == addr->type)) ||
671 (!same_type && (tmp->type != addr->type)) ) &&
672 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
673 sizeof(struct in6_addr)) == 0) ) {
674 return 1;
675 }
676 }
677 return 0;
678 }
679
680 /*
681 * Add IP to be added to todo list. If there is already an "add todo"
682 * in this list we just incremenent the reference count.
683 * Returns 0 if we just incremented reference count.
684 */
685 static int
686 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
687 {
688 struct qeth_ipaddr *tmp, *t;
689 int found = 0;
690
691 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
692 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
693 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
694 return 0;
695 if (card->options.layer2) {
696 if ((tmp->type == addr->type) &&
697 (tmp->is_multicast == addr->is_multicast) &&
698 (memcmp(&tmp->mac, &addr->mac,
699 OSA_ADDR_LEN) == 0)) {
700 found = 1;
701 break;
702 }
703 continue;
704 }
705 if ((tmp->proto == QETH_PROT_IPV4) &&
706 (addr->proto == QETH_PROT_IPV4) &&
707 (tmp->type == addr->type) &&
708 (tmp->is_multicast == addr->is_multicast) &&
709 (tmp->u.a4.addr == addr->u.a4.addr) &&
710 (tmp->u.a4.mask == addr->u.a4.mask)) {
711 found = 1;
712 break;
713 }
714 if ((tmp->proto == QETH_PROT_IPV6) &&
715 (addr->proto == QETH_PROT_IPV6) &&
716 (tmp->type == addr->type) &&
717 (tmp->is_multicast == addr->is_multicast) &&
718 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
719 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
720 sizeof(struct in6_addr)) == 0)) {
721 found = 1;
722 break;
723 }
724 }
725 if (found){
726 if (addr->users != 0)
727 tmp->users += addr->users;
728 else
729 tmp->users += add? 1:-1;
730 if (tmp->users == 0) {
731 list_del(&tmp->entry);
732 kfree(tmp);
733 }
734 return 0;
735 } else {
736 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
737 list_add(&addr->entry, card->ip_tbd_list);
738 else {
739 if (addr->users == 0)
740 addr->users += add? 1:-1;
741 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
742 qeth_is_addr_covered_by_ipato(card, addr)){
743 QETH_DBF_TEXT(trace, 2, "tkovaddr");
744 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
745 }
746 list_add_tail(&addr->entry, card->ip_tbd_list);
747 }
748 return 1;
749 }
750 }
751
752 /**
753 * Remove IP address from list
754 */
755 static int
756 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
757 {
758 unsigned long flags;
759 int rc = 0;
760
761 QETH_DBF_TEXT(trace, 4, "delip");
762
763 if (card->options.layer2)
764 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
765 else if (addr->proto == QETH_PROT_IPV4)
766 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
767 else {
768 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
769 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
770 }
771 spin_lock_irqsave(&card->ip_lock, flags);
772 rc = __qeth_insert_ip_todo(card, addr, 0);
773 spin_unlock_irqrestore(&card->ip_lock, flags);
774 return rc;
775 }
776
777 static int
778 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
779 {
780 unsigned long flags;
781 int rc = 0;
782
783 QETH_DBF_TEXT(trace, 4, "addip");
784 if (card->options.layer2)
785 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
786 else if (addr->proto == QETH_PROT_IPV4)
787 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
788 else {
789 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
790 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
791 }
792 spin_lock_irqsave(&card->ip_lock, flags);
793 rc = __qeth_insert_ip_todo(card, addr, 1);
794 spin_unlock_irqrestore(&card->ip_lock, flags);
795 return rc;
796 }
797
798 static inline void
799 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
800 {
801 struct qeth_ipaddr *addr, *tmp;
802 int rc;
803 again:
804 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
805 if (addr->is_multicast) {
806 spin_unlock_irqrestore(&card->ip_lock, *flags);
807 rc = qeth_deregister_addr_entry(card, addr);
808 spin_lock_irqsave(&card->ip_lock, *flags);
809 if (!rc) {
810 list_del(&addr->entry);
811 kfree(addr);
812 goto again;
813 }
814 }
815 }
816 }
817
818 static void
819 qeth_set_ip_addr_list(struct qeth_card *card)
820 {
821 struct list_head *tbd_list;
822 struct qeth_ipaddr *todo, *addr;
823 unsigned long flags;
824 int rc;
825
826 QETH_DBF_TEXT(trace, 2, "sdiplist");
827 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
828
829 spin_lock_irqsave(&card->ip_lock, flags);
830 tbd_list = card->ip_tbd_list;
831 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
832 if (!card->ip_tbd_list) {
833 QETH_DBF_TEXT(trace, 0, "silnomem");
834 card->ip_tbd_list = tbd_list;
835 spin_unlock_irqrestore(&card->ip_lock, flags);
836 return;
837 } else
838 INIT_LIST_HEAD(card->ip_tbd_list);
839
840 while (!list_empty(tbd_list)){
841 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
842 list_del(&todo->entry);
843 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
844 __qeth_delete_all_mc(card, &flags);
845 kfree(todo);
846 continue;
847 }
848 rc = __qeth_ref_ip_on_card(card, todo, &addr);
849 if (rc == 0) {
850 /* nothing to be done; only adjusted refcount */
851 kfree(todo);
852 } else if (rc == 1) {
853 /* new entry to be added to on-card list */
854 spin_unlock_irqrestore(&card->ip_lock, flags);
855 rc = qeth_register_addr_entry(card, todo);
856 spin_lock_irqsave(&card->ip_lock, flags);
857 if (!rc)
858 list_add_tail(&todo->entry, &card->ip_list);
859 else
860 kfree(todo);
861 } else if (rc == -1) {
862 /* on-card entry to be removed */
863 list_del_init(&addr->entry);
864 spin_unlock_irqrestore(&card->ip_lock, flags);
865 rc = qeth_deregister_addr_entry(card, addr);
866 spin_lock_irqsave(&card->ip_lock, flags);
867 if (!rc)
868 kfree(addr);
869 else
870 list_add_tail(&addr->entry, &card->ip_list);
871 kfree(todo);
872 }
873 }
874 spin_unlock_irqrestore(&card->ip_lock, flags);
875 kfree(tbd_list);
876 }
877
878 static void qeth_delete_mc_addresses(struct qeth_card *);
879 static void qeth_add_multicast_ipv4(struct qeth_card *);
880 static void qeth_layer2_add_multicast(struct qeth_card *);
881 #ifdef CONFIG_QETH_IPV6
882 static void qeth_add_multicast_ipv6(struct qeth_card *);
883 #endif
884
885 static inline int
886 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
887 {
888 unsigned long flags;
889
890 spin_lock_irqsave(&card->thread_mask_lock, flags);
891 if ( !(card->thread_allowed_mask & thread) ||
892 (card->thread_start_mask & thread) ) {
893 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
894 return -EPERM;
895 }
896 card->thread_start_mask |= thread;
897 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
898 return 0;
899 }
900
901 static void
902 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
903 {
904 unsigned long flags;
905
906 spin_lock_irqsave(&card->thread_mask_lock, flags);
907 card->thread_start_mask &= ~thread;
908 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
909 wake_up(&card->wait_q);
910 }
911
912 static void
913 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
914 {
915 unsigned long flags;
916
917 spin_lock_irqsave(&card->thread_mask_lock, flags);
918 card->thread_running_mask &= ~thread;
919 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
920 wake_up(&card->wait_q);
921 }
922
923 static inline int
924 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
925 {
926 unsigned long flags;
927 int rc = 0;
928
929 spin_lock_irqsave(&card->thread_mask_lock, flags);
930 if (card->thread_start_mask & thread){
931 if ((card->thread_allowed_mask & thread) &&
932 !(card->thread_running_mask & thread)){
933 rc = 1;
934 card->thread_start_mask &= ~thread;
935 card->thread_running_mask |= thread;
936 } else
937 rc = -EPERM;
938 }
939 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
940 return rc;
941 }
942
943 static int
944 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
945 {
946 int rc = 0;
947
948 wait_event(card->wait_q,
949 (rc = __qeth_do_run_thread(card, thread)) >= 0);
950 return rc;
951 }
952
953 static int
954 qeth_register_ip_addresses(void *ptr)
955 {
956 struct qeth_card *card;
957
958 card = (struct qeth_card *) ptr;
959 daemonize("qeth_reg_ip");
960 QETH_DBF_TEXT(trace,4,"regipth1");
961 if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
962 return 0;
963 QETH_DBF_TEXT(trace,4,"regipth2");
964 qeth_set_ip_addr_list(card);
965 qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
966 return 0;
967 }
968
969 /*
970 * Drive the SET_PROMISC_MODE thread
971 */
972 static int
973 qeth_set_promisc_mode(void *ptr)
974 {
975 struct qeth_card *card = (struct qeth_card *) ptr;
976
977 daemonize("qeth_setprm");
978 QETH_DBF_TEXT(trace,4,"setprm1");
979 if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
980 return 0;
981 QETH_DBF_TEXT(trace,4,"setprm2");
982 qeth_setadp_promisc_mode(card);
983 qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
984 return 0;
985 }
986
987 static int
988 qeth_recover(void *ptr)
989 {
990 struct qeth_card *card;
991 int rc = 0;
992
993 card = (struct qeth_card *) ptr;
994 daemonize("qeth_recover");
995 QETH_DBF_TEXT(trace,2,"recover1");
996 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
997 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
998 return 0;
999 QETH_DBF_TEXT(trace,2,"recover2");
1000 PRINT_WARN("Recovery of device %s started ...\n",
1001 CARD_BUS_ID(card));
1002 card->use_hard_stop = 1;
1003 __qeth_set_offline(card->gdev,1);
1004 rc = __qeth_set_online(card->gdev,1);
1005 if (!rc)
1006 PRINT_INFO("Device %s successfully recovered!\n",
1007 CARD_BUS_ID(card));
1008 else
1009 PRINT_INFO("Device %s could not be recovered!\n",
1010 CARD_BUS_ID(card));
1011 /* don't run another scheduled recovery */
1012 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1013 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1014 return 0;
1015 }
1016
1017 void
1018 qeth_schedule_recovery(struct qeth_card *card)
1019 {
1020 QETH_DBF_TEXT(trace,2,"startrec");
1021 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1022 schedule_work(&card->kernel_thread_starter);
1023 }
1024
1025 static int
1026 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1027 {
1028 unsigned long flags;
1029 int rc = 0;
1030
1031 spin_lock_irqsave(&card->thread_mask_lock, flags);
1032 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1033 (u8) card->thread_start_mask,
1034 (u8) card->thread_allowed_mask,
1035 (u8) card->thread_running_mask);
1036 rc = (card->thread_start_mask & thread);
1037 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1038 return rc;
1039 }
1040
1041 static void
1042 qeth_start_kernel_thread(struct qeth_card *card)
1043 {
1044 QETH_DBF_TEXT(trace , 2, "strthrd");
1045
1046 if (card->read.state != CH_STATE_UP &&
1047 card->write.state != CH_STATE_UP)
1048 return;
1049
1050 if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1051 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1052 if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1053 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1054 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1055 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1056 }
1057
1058
1059 static void
1060 qeth_set_intial_options(struct qeth_card *card)
1061 {
1062 card->options.route4.type = NO_ROUTER;
1063 #ifdef CONFIG_QETH_IPV6
1064 card->options.route6.type = NO_ROUTER;
1065 #endif /* QETH_IPV6 */
1066 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1067 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1068 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1069 card->options.fake_broadcast = 0;
1070 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1071 card->options.fake_ll = 0;
1072 if (card->info.type == QETH_CARD_TYPE_OSN)
1073 card->options.layer2 = 1;
1074 else
1075 card->options.layer2 = 0;
1076 }
1077
1078 /**
1079 * initialize channels ,card and all state machines
1080 */
1081 static int
1082 qeth_setup_card(struct qeth_card *card)
1083 {
1084
1085 QETH_DBF_TEXT(setup, 2, "setupcrd");
1086 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1087
1088 card->read.state = CH_STATE_DOWN;
1089 card->write.state = CH_STATE_DOWN;
1090 card->data.state = CH_STATE_DOWN;
1091 card->state = CARD_STATE_DOWN;
1092 card->lan_online = 0;
1093 card->use_hard_stop = 0;
1094 card->dev = NULL;
1095 #ifdef CONFIG_QETH_VLAN
1096 spin_lock_init(&card->vlanlock);
1097 card->vlangrp = NULL;
1098 #endif
1099 spin_lock_init(&card->lock);
1100 spin_lock_init(&card->ip_lock);
1101 spin_lock_init(&card->thread_mask_lock);
1102 card->thread_start_mask = 0;
1103 card->thread_allowed_mask = 0;
1104 card->thread_running_mask = 0;
1105 INIT_WORK(&card->kernel_thread_starter,
1106 (void *)qeth_start_kernel_thread,card);
1107 INIT_LIST_HEAD(&card->ip_list);
1108 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1109 if (!card->ip_tbd_list) {
1110 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1111 return -ENOMEM;
1112 }
1113 INIT_LIST_HEAD(card->ip_tbd_list);
1114 INIT_LIST_HEAD(&card->cmd_waiter_list);
1115 init_waitqueue_head(&card->wait_q);
1116 /* intial options */
1117 qeth_set_intial_options(card);
1118 /* IP address takeover */
1119 INIT_LIST_HEAD(&card->ipato.entries);
1120 card->ipato.enabled = 0;
1121 card->ipato.invert4 = 0;
1122 card->ipato.invert6 = 0;
1123 /* init QDIO stuff */
1124 qeth_init_qdio_info(card);
1125 return 0;
1126 }
1127
1128 static int
1129 is_1920_device (struct qeth_card *card)
1130 {
1131 int single_queue = 0;
1132 struct ccw_device *ccwdev;
1133 struct channelPath_dsc {
1134 u8 flags;
1135 u8 lsn;
1136 u8 desc;
1137 u8 chpid;
1138 u8 swla;
1139 u8 zeroes;
1140 u8 chla;
1141 u8 chpp;
1142 } *chp_dsc;
1143
1144 QETH_DBF_TEXT(setup, 2, "chk_1920");
1145
1146 ccwdev = card->data.ccwdev;
1147 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1148 if (chp_dsc != NULL) {
1149 /* CHPP field bit 6 == 1 -> single queue */
1150 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1151 kfree(chp_dsc);
1152 }
1153 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1154 return single_queue;
1155 }
1156
1157 static int
1158 qeth_determine_card_type(struct qeth_card *card)
1159 {
1160 int i = 0;
1161
1162 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1163
1164 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1165 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1166 while (known_devices[i][4]) {
1167 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1168 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1169 card->info.type = known_devices[i][4];
1170 card->qdio.no_out_queues = known_devices[i][8];
1171 card->info.is_multicast_different = known_devices[i][9];
1172 if (is_1920_device(card)) {
1173 PRINT_INFO("Priority Queueing not able "
1174 "due to hardware limitations!\n");
1175 card->qdio.no_out_queues = 1;
1176 card->qdio.default_out_queue = 0;
1177 }
1178 return 0;
1179 }
1180 i++;
1181 }
1182 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1183 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1184 return -ENOENT;
1185 }
1186
1187 static int
1188 qeth_probe_device(struct ccwgroup_device *gdev)
1189 {
1190 struct qeth_card *card;
1191 struct device *dev;
1192 unsigned long flags;
1193 int rc;
1194
1195 QETH_DBF_TEXT(setup, 2, "probedev");
1196
1197 dev = &gdev->dev;
1198 if (!get_device(dev))
1199 return -ENODEV;
1200
1201 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1202
1203 card = qeth_alloc_card();
1204 if (!card) {
1205 put_device(dev);
1206 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1207 return -ENOMEM;
1208 }
1209 card->read.ccwdev = gdev->cdev[0];
1210 card->write.ccwdev = gdev->cdev[1];
1211 card->data.ccwdev = gdev->cdev[2];
1212 gdev->dev.driver_data = card;
1213 card->gdev = gdev;
1214 gdev->cdev[0]->handler = qeth_irq;
1215 gdev->cdev[1]->handler = qeth_irq;
1216 gdev->cdev[2]->handler = qeth_irq;
1217
1218 if ((rc = qeth_determine_card_type(card))){
1219 PRINT_WARN("%s: not a valid card type\n", __func__);
1220 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1221 put_device(dev);
1222 qeth_free_card(card);
1223 return rc;
1224 }
1225 if ((rc = qeth_setup_card(card))){
1226 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1227 put_device(dev);
1228 qeth_free_card(card);
1229 return rc;
1230 }
1231 rc = qeth_create_device_attributes(dev);
1232 if (rc) {
1233 put_device(dev);
1234 qeth_free_card(card);
1235 return rc;
1236 }
1237 /* insert into our internal list */
1238 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1239 list_add_tail(&card->list, &qeth_card_list.list);
1240 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1241 return rc;
1242 }
1243
1244
1245 static int
1246 qeth_get_unitaddr(struct qeth_card *card)
1247 {
1248 int length;
1249 char *prcd;
1250 int rc;
1251
1252 QETH_DBF_TEXT(setup, 2, "getunit");
1253 rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1254 if (rc) {
1255 PRINT_ERR("read_conf_data for device %s returned %i\n",
1256 CARD_DDEV_ID(card), rc);
1257 return rc;
1258 }
1259 card->info.chpid = prcd[30];
1260 card->info.unit_addr2 = prcd[31];
1261 card->info.cula = prcd[63];
1262 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1263 (prcd[0x11] == _ascebc['M']));
1264 return 0;
1265 }
1266
1267 static void
1268 qeth_init_tokens(struct qeth_card *card)
1269 {
1270 card->token.issuer_rm_w = 0x00010103UL;
1271 card->token.cm_filter_w = 0x00010108UL;
1272 card->token.cm_connection_w = 0x0001010aUL;
1273 card->token.ulp_filter_w = 0x0001010bUL;
1274 card->token.ulp_connection_w = 0x0001010dUL;
1275 }
1276
1277 static inline __u16
1278 raw_devno_from_bus_id(char *id)
1279 {
1280 id += (strlen(id) - 4);
1281 return (__u16) simple_strtoul(id, &id, 16);
1282 }
1283 /**
1284 * setup channel
1285 */
1286 static void
1287 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1288 {
1289 struct qeth_card *card;
1290
1291 QETH_DBF_TEXT(trace, 4, "setupccw");
1292 card = CARD_FROM_CDEV(channel->ccwdev);
1293 if (channel == &card->read)
1294 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1295 else
1296 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1297 channel->ccw.count = len;
1298 channel->ccw.cda = (__u32) __pa(iob);
1299 }
1300
1301 /**
1302 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1303 */
1304 static struct qeth_cmd_buffer *
1305 __qeth_get_buffer(struct qeth_channel *channel)
1306 {
1307 __u8 index;
1308
1309 QETH_DBF_TEXT(trace, 6, "getbuff");
1310 index = channel->io_buf_no;
1311 do {
1312 if (channel->iob[index].state == BUF_STATE_FREE) {
1313 channel->iob[index].state = BUF_STATE_LOCKED;
1314 channel->io_buf_no = (channel->io_buf_no + 1) %
1315 QETH_CMD_BUFFER_NO;
1316 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1317 return channel->iob + index;
1318 }
1319 index = (index + 1) % QETH_CMD_BUFFER_NO;
1320 } while(index != channel->io_buf_no);
1321
1322 return NULL;
1323 }
1324
1325 /**
1326 * release command buffer
1327 */
1328 static void
1329 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1330 {
1331 unsigned long flags;
1332
1333 QETH_DBF_TEXT(trace, 6, "relbuff");
1334 spin_lock_irqsave(&channel->iob_lock, flags);
1335 memset(iob->data, 0, QETH_BUFSIZE);
1336 iob->state = BUF_STATE_FREE;
1337 iob->callback = qeth_send_control_data_cb;
1338 iob->rc = 0;
1339 spin_unlock_irqrestore(&channel->iob_lock, flags);
1340 }
1341
1342 static struct qeth_cmd_buffer *
1343 qeth_get_buffer(struct qeth_channel *channel)
1344 {
1345 struct qeth_cmd_buffer *buffer = NULL;
1346 unsigned long flags;
1347
1348 spin_lock_irqsave(&channel->iob_lock, flags);
1349 buffer = __qeth_get_buffer(channel);
1350 spin_unlock_irqrestore(&channel->iob_lock, flags);
1351 return buffer;
1352 }
1353
1354 static struct qeth_cmd_buffer *
1355 qeth_wait_for_buffer(struct qeth_channel *channel)
1356 {
1357 struct qeth_cmd_buffer *buffer;
1358 wait_event(channel->wait_q,
1359 ((buffer = qeth_get_buffer(channel)) != NULL));
1360 return buffer;
1361 }
1362
1363 static void
1364 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1365 {
1366 int cnt;
1367
1368 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1369 qeth_release_buffer(channel,&channel->iob[cnt]);
1370 channel->buf_no = 0;
1371 channel->io_buf_no = 0;
1372 }
1373
1374 /**
1375 * start IDX for read and write channel
1376 */
1377 static int
1378 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1379 void (*idx_reply_cb)(struct qeth_channel *,
1380 struct qeth_cmd_buffer *))
1381 {
1382 struct qeth_cmd_buffer *iob;
1383 unsigned long flags;
1384 int rc;
1385 struct qeth_card *card;
1386
1387 QETH_DBF_TEXT(setup, 2, "idxanswr");
1388 card = CARD_FROM_CDEV(channel->ccwdev);
1389 iob = qeth_get_buffer(channel);
1390 iob->callback = idx_reply_cb;
1391 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1392 channel->ccw.count = QETH_BUFSIZE;
1393 channel->ccw.cda = (__u32) __pa(iob->data);
1394
1395 wait_event(card->wait_q,
1396 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1397 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1398 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1399 rc = ccw_device_start(channel->ccwdev,
1400 &channel->ccw,(addr_t) iob, 0, 0);
1401 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1402
1403 if (rc) {
1404 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1405 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1406 atomic_set(&channel->irq_pending, 0);
1407 wake_up(&card->wait_q);
1408 return rc;
1409 }
1410 rc = wait_event_interruptible_timeout(card->wait_q,
1411 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1412 if (rc == -ERESTARTSYS)
1413 return rc;
1414 if (channel->state != CH_STATE_UP){
1415 rc = -ETIME;
1416 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1417 qeth_clear_cmd_buffers(channel);
1418 } else
1419 rc = 0;
1420 return rc;
1421 }
1422
1423 static int
1424 qeth_idx_activate_channel(struct qeth_channel *channel,
1425 void (*idx_reply_cb)(struct qeth_channel *,
1426 struct qeth_cmd_buffer *))
1427 {
1428 struct qeth_card *card;
1429 struct qeth_cmd_buffer *iob;
1430 unsigned long flags;
1431 __u16 temp;
1432 int rc;
1433
1434 card = CARD_FROM_CDEV(channel->ccwdev);
1435
1436 QETH_DBF_TEXT(setup, 2, "idxactch");
1437
1438 iob = qeth_get_buffer(channel);
1439 iob->callback = idx_reply_cb;
1440 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1441 channel->ccw.count = IDX_ACTIVATE_SIZE;
1442 channel->ccw.cda = (__u32) __pa(iob->data);
1443 if (channel == &card->write) {
1444 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1445 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1446 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1447 card->seqno.trans_hdr++;
1448 } else {
1449 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1450 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1451 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1452 }
1453 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1454 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1455 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1456 &card->info.func_level,sizeof(__u16));
1457 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1458 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1459 temp = (card->info.cula << 8) + card->info.unit_addr2;
1460 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1461
1462 wait_event(card->wait_q,
1463 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1464 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1465 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1466 rc = ccw_device_start(channel->ccwdev,
1467 &channel->ccw,(addr_t) iob, 0, 0);
1468 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1469
1470 if (rc) {
1471 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1472 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1473 atomic_set(&channel->irq_pending, 0);
1474 wake_up(&card->wait_q);
1475 return rc;
1476 }
1477 rc = wait_event_interruptible_timeout(card->wait_q,
1478 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1479 if (rc == -ERESTARTSYS)
1480 return rc;
1481 if (channel->state != CH_STATE_ACTIVATING) {
1482 PRINT_WARN("qeth: IDX activate timed out!\n");
1483 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1484 qeth_clear_cmd_buffers(channel);
1485 return -ETIME;
1486 }
1487 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1488 }
1489
1490 static int
1491 qeth_peer_func_level(int level)
1492 {
1493 if ((level & 0xff) == 8)
1494 return (level & 0xff) + 0x400;
1495 if (((level >> 8) & 3) == 1)
1496 return (level & 0xff) + 0x200;
1497 return level;
1498 }
1499
1500 static void
1501 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1502 {
1503 struct qeth_card *card;
1504 __u16 temp;
1505
1506 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1507
1508 if (channel->state == CH_STATE_DOWN) {
1509 channel->state = CH_STATE_ACTIVATING;
1510 goto out;
1511 }
1512 card = CARD_FROM_CDEV(channel->ccwdev);
1513
1514 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1515 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1516 "reply\n", CARD_WDEV_ID(card));
1517 goto out;
1518 }
1519 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1520 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1521 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1522 "function level mismatch "
1523 "(sent: 0x%x, received: 0x%x)\n",
1524 CARD_WDEV_ID(card), card->info.func_level, temp);
1525 goto out;
1526 }
1527 channel->state = CH_STATE_UP;
1528 out:
1529 qeth_release_buffer(channel, iob);
1530 }
1531
1532 static int
1533 qeth_check_idx_response(unsigned char *buffer)
1534 {
1535 if (!buffer)
1536 return 0;
1537
1538 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1539 if ((buffer[2] & 0xc0) == 0xc0) {
1540 PRINT_WARN("received an IDX TERMINATE "
1541 "with cause code 0x%02x%s\n",
1542 buffer[4],
1543 ((buffer[4] == 0x22) ?
1544 " -- try another portname" : ""));
1545 QETH_DBF_TEXT(trace, 2, "ckidxres");
1546 QETH_DBF_TEXT(trace, 2, " idxterm");
1547 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1548 return -EIO;
1549 }
1550 return 0;
1551 }
1552
1553 static void
1554 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1555 {
1556 struct qeth_card *card;
1557 __u16 temp;
1558
1559 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1560 if (channel->state == CH_STATE_DOWN) {
1561 channel->state = CH_STATE_ACTIVATING;
1562 goto out;
1563 }
1564
1565 card = CARD_FROM_CDEV(channel->ccwdev);
1566 if (qeth_check_idx_response(iob->data)) {
1567 goto out;
1568 }
1569 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1570 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1571 "reply\n", CARD_RDEV_ID(card));
1572 goto out;
1573 }
1574
1575 /**
1576 * temporary fix for microcode bug
1577 * to revert it,replace OR by AND
1578 */
1579 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1580 (card->info.type == QETH_CARD_TYPE_OSAE) )
1581 card->info.portname_required = 1;
1582
1583 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1584 if (temp != qeth_peer_func_level(card->info.func_level)) {
1585 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1586 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1587 CARD_RDEV_ID(card), card->info.func_level, temp);
1588 goto out;
1589 }
1590 memcpy(&card->token.issuer_rm_r,
1591 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1592 QETH_MPC_TOKEN_LENGTH);
1593 memcpy(&card->info.mcl_level[0],
1594 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1595 channel->state = CH_STATE_UP;
1596 out:
1597 qeth_release_buffer(channel,iob);
1598 }
1599
1600 static int
1601 qeth_issue_next_read(struct qeth_card *card)
1602 {
1603 int rc;
1604 struct qeth_cmd_buffer *iob;
1605
1606 QETH_DBF_TEXT(trace,5,"issnxrd");
1607 if (card->read.state != CH_STATE_UP)
1608 return -EIO;
1609 iob = qeth_get_buffer(&card->read);
1610 if (!iob) {
1611 PRINT_WARN("issue_next_read failed: no iob available!\n");
1612 return -ENOMEM;
1613 }
1614 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1615 wait_event(card->wait_q,
1616 atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1617 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1618 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1619 (addr_t) iob, 0, 0);
1620 if (rc) {
1621 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1622 atomic_set(&card->read.irq_pending, 0);
1623 qeth_schedule_recovery(card);
1624 wake_up(&card->wait_q);
1625 }
1626 return rc;
1627 }
1628
1629 static struct qeth_reply *
1630 qeth_alloc_reply(struct qeth_card *card)
1631 {
1632 struct qeth_reply *reply;
1633
1634 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1635 if (reply){
1636 atomic_set(&reply->refcnt, 1);
1637 reply->card = card;
1638 };
1639 return reply;
1640 }
1641
1642 static void
1643 qeth_get_reply(struct qeth_reply *reply)
1644 {
1645 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1646 atomic_inc(&reply->refcnt);
1647 }
1648
1649 static void
1650 qeth_put_reply(struct qeth_reply *reply)
1651 {
1652 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1653 if (atomic_dec_and_test(&reply->refcnt))
1654 kfree(reply);
1655 }
1656
1657 static void
1658 qeth_cmd_timeout(unsigned long data)
1659 {
1660 struct qeth_reply *reply, *list_reply, *r;
1661 unsigned long flags;
1662
1663 reply = (struct qeth_reply *) data;
1664 spin_lock_irqsave(&reply->card->lock, flags);
1665 list_for_each_entry_safe(list_reply, r,
1666 &reply->card->cmd_waiter_list, list) {
1667 if (reply == list_reply){
1668 qeth_get_reply(reply);
1669 list_del_init(&reply->list);
1670 spin_unlock_irqrestore(&reply->card->lock, flags);
1671 reply->rc = -ETIME;
1672 reply->received = 1;
1673 wake_up(&reply->wait_q);
1674 qeth_put_reply(reply);
1675 return;
1676 }
1677 }
1678 spin_unlock_irqrestore(&reply->card->lock, flags);
1679 }
1680
1681
1682 static struct qeth_ipa_cmd *
1683 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1684 {
1685 struct qeth_ipa_cmd *cmd = NULL;
1686
1687 QETH_DBF_TEXT(trace,5,"chkipad");
1688 if (IS_IPA(iob->data)){
1689 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1690 if (IS_IPA_REPLY(cmd))
1691 return cmd;
1692 else {
1693 switch (cmd->hdr.command) {
1694 case IPA_CMD_STOPLAN:
1695 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1696 "there is a network problem or "
1697 "someone pulled the cable or "
1698 "disabled the port.\n",
1699 QETH_CARD_IFNAME(card),
1700 card->info.chpid);
1701 card->lan_online = 0;
1702 if (card->dev && netif_carrier_ok(card->dev))
1703 netif_carrier_off(card->dev);
1704 return NULL;
1705 case IPA_CMD_STARTLAN:
1706 PRINT_INFO("Link reestablished on %s "
1707 "(CHPID 0x%X). Scheduling "
1708 "IP address reset.\n",
1709 QETH_CARD_IFNAME(card),
1710 card->info.chpid);
1711 qeth_schedule_recovery(card);
1712 return NULL;
1713 case IPA_CMD_MODCCID:
1714 return cmd;
1715 case IPA_CMD_REGISTER_LOCAL_ADDR:
1716 QETH_DBF_TEXT(trace,3, "irla");
1717 break;
1718 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1719 QETH_DBF_TEXT(trace,3, "urla");
1720 break;
1721 default:
1722 PRINT_WARN("Received data is IPA "
1723 "but not a reply!\n");
1724 break;
1725 }
1726 }
1727 }
1728 return cmd;
1729 }
1730
1731 /**
1732 * wake all waiting ipa commands
1733 */
1734 static void
1735 qeth_clear_ipacmd_list(struct qeth_card *card)
1736 {
1737 struct qeth_reply *reply, *r;
1738 unsigned long flags;
1739
1740 QETH_DBF_TEXT(trace, 4, "clipalst");
1741
1742 spin_lock_irqsave(&card->lock, flags);
1743 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1744 qeth_get_reply(reply);
1745 reply->rc = -EIO;
1746 reply->received = 1;
1747 list_del_init(&reply->list);
1748 wake_up(&reply->wait_q);
1749 qeth_put_reply(reply);
1750 }
1751 spin_unlock_irqrestore(&card->lock, flags);
1752 }
1753
1754 static void
1755 qeth_send_control_data_cb(struct qeth_channel *channel,
1756 struct qeth_cmd_buffer *iob)
1757 {
1758 struct qeth_card *card;
1759 struct qeth_reply *reply, *r;
1760 struct qeth_ipa_cmd *cmd;
1761 unsigned long flags;
1762 int keep_reply;
1763
1764 QETH_DBF_TEXT(trace,4,"sndctlcb");
1765
1766 card = CARD_FROM_CDEV(channel->ccwdev);
1767 if (qeth_check_idx_response(iob->data)) {
1768 qeth_clear_ipacmd_list(card);
1769 qeth_schedule_recovery(card);
1770 goto out;
1771 }
1772
1773 cmd = qeth_check_ipa_data(card, iob);
1774 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1775 goto out;
1776 /*in case of OSN : check if cmd is set */
1777 if (card->info.type == QETH_CARD_TYPE_OSN &&
1778 cmd &&
1779 cmd->hdr.command != IPA_CMD_STARTLAN &&
1780 card->osn_info.assist_cb != NULL) {
1781 card->osn_info.assist_cb(card->dev, cmd);
1782 goto out;
1783 }
1784
1785 spin_lock_irqsave(&card->lock, flags);
1786 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1787 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1788 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1789 qeth_get_reply(reply);
1790 list_del_init(&reply->list);
1791 spin_unlock_irqrestore(&card->lock, flags);
1792 keep_reply = 0;
1793 if (reply->callback != NULL) {
1794 if (cmd) {
1795 reply->offset = (__u16)((char*)cmd -
1796 (char *)iob->data);
1797 keep_reply = reply->callback(card,
1798 reply,
1799 (unsigned long)cmd);
1800 } else
1801 keep_reply = reply->callback(card,
1802 reply,
1803 (unsigned long)iob);
1804 }
1805 if (cmd)
1806 reply->rc = (u16) cmd->hdr.return_code;
1807 else if (iob->rc)
1808 reply->rc = iob->rc;
1809 if (keep_reply) {
1810 spin_lock_irqsave(&card->lock, flags);
1811 list_add_tail(&reply->list,
1812 &card->cmd_waiter_list);
1813 spin_unlock_irqrestore(&card->lock, flags);
1814 } else {
1815 reply->received = 1;
1816 wake_up(&reply->wait_q);
1817 }
1818 qeth_put_reply(reply);
1819 goto out;
1820 }
1821 }
1822 spin_unlock_irqrestore(&card->lock, flags);
1823 out:
1824 memcpy(&card->seqno.pdu_hdr_ack,
1825 QETH_PDU_HEADER_SEQ_NO(iob->data),
1826 QETH_SEQ_NO_LENGTH);
1827 qeth_release_buffer(channel,iob);
1828 }
1829
1830 static inline void
1831 qeth_prepare_control_data(struct qeth_card *card, int len,
1832 struct qeth_cmd_buffer *iob)
1833 {
1834 qeth_setup_ccw(&card->write,iob->data,len);
1835 iob->callback = qeth_release_buffer;
1836
1837 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1838 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1839 card->seqno.trans_hdr++;
1840 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1841 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1842 card->seqno.pdu_hdr++;
1843 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1844 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1845 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1846 }
1847
1848 static int
1849 qeth_send_control_data(struct qeth_card *card, int len,
1850 struct qeth_cmd_buffer *iob,
1851 int (*reply_cb)
1852 (struct qeth_card *, struct qeth_reply*, unsigned long),
1853 void *reply_param)
1854
1855 {
1856 int rc;
1857 unsigned long flags;
1858 struct qeth_reply *reply = NULL;
1859 struct timer_list timer;
1860
1861 QETH_DBF_TEXT(trace, 2, "sendctl");
1862
1863 reply = qeth_alloc_reply(card);
1864 if (!reply) {
1865 PRINT_WARN("Could no alloc qeth_reply!\n");
1866 return -ENOMEM;
1867 }
1868 reply->callback = reply_cb;
1869 reply->param = reply_param;
1870 if (card->state == CARD_STATE_DOWN)
1871 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1872 else
1873 reply->seqno = card->seqno.ipa++;
1874 init_timer(&timer);
1875 timer.function = qeth_cmd_timeout;
1876 timer.data = (unsigned long) reply;
1877 init_waitqueue_head(&reply->wait_q);
1878 spin_lock_irqsave(&card->lock, flags);
1879 list_add_tail(&reply->list, &card->cmd_waiter_list);
1880 spin_unlock_irqrestore(&card->lock, flags);
1881 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1882 wait_event(card->wait_q,
1883 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1884 qeth_prepare_control_data(card, len, iob);
1885 if (IS_IPA(iob->data))
1886 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1887 else
1888 timer.expires = jiffies + QETH_TIMEOUT;
1889 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1890 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1891 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1892 (addr_t) iob, 0, 0);
1893 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1894 if (rc){
1895 PRINT_WARN("qeth_send_control_data: "
1896 "ccw_device_start rc = %i\n", rc);
1897 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1898 spin_lock_irqsave(&card->lock, flags);
1899 list_del_init(&reply->list);
1900 qeth_put_reply(reply);
1901 spin_unlock_irqrestore(&card->lock, flags);
1902 qeth_release_buffer(iob->channel, iob);
1903 atomic_set(&card->write.irq_pending, 0);
1904 wake_up(&card->wait_q);
1905 return rc;
1906 }
1907 add_timer(&timer);
1908 wait_event(reply->wait_q, reply->received);
1909 del_timer_sync(&timer);
1910 rc = reply->rc;
1911 qeth_put_reply(reply);
1912 return rc;
1913 }
1914
1915 static int
1916 qeth_osn_send_control_data(struct qeth_card *card, int len,
1917 struct qeth_cmd_buffer *iob)
1918 {
1919 unsigned long flags;
1920 int rc = 0;
1921
1922 QETH_DBF_TEXT(trace, 5, "osndctrd");
1923
1924 wait_event(card->wait_q,
1925 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1926 qeth_prepare_control_data(card, len, iob);
1927 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1928 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1929 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1930 (addr_t) iob, 0, 0);
1931 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1932 if (rc){
1933 PRINT_WARN("qeth_osn_send_control_data: "
1934 "ccw_device_start rc = %i\n", rc);
1935 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1936 qeth_release_buffer(iob->channel, iob);
1937 atomic_set(&card->write.irq_pending, 0);
1938 wake_up(&card->wait_q);
1939 }
1940 return rc;
1941 }
1942
1943 static inline void
1944 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1945 char prot_type)
1946 {
1947 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1948 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1949 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1950 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1951 }
1952
1953 static int
1954 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1955 int data_len)
1956 {
1957 u16 s1, s2;
1958
1959 QETH_DBF_TEXT(trace,4,"osndipa");
1960
1961 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1962 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1963 s2 = (u16)data_len;
1964 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1965 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1966 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1967 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1968 return qeth_osn_send_control_data(card, s1, iob);
1969 }
1970
1971 static int
1972 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1973 int (*reply_cb)
1974 (struct qeth_card *,struct qeth_reply*, unsigned long),
1975 void *reply_param)
1976 {
1977 int rc;
1978 char prot_type;
1979
1980 QETH_DBF_TEXT(trace,4,"sendipa");
1981
1982 if (card->options.layer2)
1983 if (card->info.type == QETH_CARD_TYPE_OSN)
1984 prot_type = QETH_PROT_OSN2;
1985 else
1986 prot_type = QETH_PROT_LAYER2;
1987 else
1988 prot_type = QETH_PROT_TCPIP;
1989 qeth_prepare_ipa_cmd(card,iob,prot_type);
1990 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1991 reply_cb, reply_param);
1992 return rc;
1993 }
1994
1995
1996 static int
1997 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1998 unsigned long data)
1999 {
2000 struct qeth_cmd_buffer *iob;
2001
2002 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2003
2004 iob = (struct qeth_cmd_buffer *) data;
2005 memcpy(&card->token.cm_filter_r,
2006 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2007 QETH_MPC_TOKEN_LENGTH);
2008 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2009 return 0;
2010 }
2011
2012 static int
2013 qeth_cm_enable(struct qeth_card *card)
2014 {
2015 int rc;
2016 struct qeth_cmd_buffer *iob;
2017
2018 QETH_DBF_TEXT(setup,2,"cmenable");
2019
2020 iob = qeth_wait_for_buffer(&card->write);
2021 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2022 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2023 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2024 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2025 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2026
2027 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2028 qeth_cm_enable_cb, NULL);
2029 return rc;
2030 }
2031
2032 static int
2033 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2034 unsigned long data)
2035 {
2036
2037 struct qeth_cmd_buffer *iob;
2038
2039 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2040
2041 iob = (struct qeth_cmd_buffer *) data;
2042 memcpy(&card->token.cm_connection_r,
2043 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2044 QETH_MPC_TOKEN_LENGTH);
2045 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2046 return 0;
2047 }
2048
2049 static int
2050 qeth_cm_setup(struct qeth_card *card)
2051 {
2052 int rc;
2053 struct qeth_cmd_buffer *iob;
2054
2055 QETH_DBF_TEXT(setup,2,"cmsetup");
2056
2057 iob = qeth_wait_for_buffer(&card->write);
2058 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2059 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2060 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2061 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2062 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2063 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2064 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2065 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2066 qeth_cm_setup_cb, NULL);
2067 return rc;
2068
2069 }
2070
2071 static int
2072 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2073 unsigned long data)
2074 {
2075
2076 __u16 mtu, framesize;
2077 __u16 len;
2078 __u8 link_type;
2079 struct qeth_cmd_buffer *iob;
2080
2081 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2082
2083 iob = (struct qeth_cmd_buffer *) data;
2084 memcpy(&card->token.ulp_filter_r,
2085 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2086 QETH_MPC_TOKEN_LENGTH);
2087 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2088 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2089 mtu = qeth_get_mtu_outof_framesize(framesize);
2090 if (!mtu) {
2091 iob->rc = -EINVAL;
2092 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2093 return 0;
2094 }
2095 card->info.max_mtu = mtu;
2096 card->info.initial_mtu = mtu;
2097 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2098 } else {
2099 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2100 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2101 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2102 }
2103
2104 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2105 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2106 memcpy(&link_type,
2107 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2108 card->info.link_type = link_type;
2109 } else
2110 card->info.link_type = 0;
2111 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2112 return 0;
2113 }
2114
2115 static int
2116 qeth_ulp_enable(struct qeth_card *card)
2117 {
2118 int rc;
2119 char prot_type;
2120 struct qeth_cmd_buffer *iob;
2121
2122 /*FIXME: trace view callbacks*/
2123 QETH_DBF_TEXT(setup,2,"ulpenabl");
2124
2125 iob = qeth_wait_for_buffer(&card->write);
2126 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2127
2128 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2129 (__u8) card->info.portno;
2130 if (card->options.layer2)
2131 if (card->info.type == QETH_CARD_TYPE_OSN)
2132 prot_type = QETH_PROT_OSN2;
2133 else
2134 prot_type = QETH_PROT_LAYER2;
2135 else
2136 prot_type = QETH_PROT_TCPIP;
2137
2138 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2139 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2140 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2141 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2142 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2143 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2144 card->info.portname, 9);
2145 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2146 qeth_ulp_enable_cb, NULL);
2147 return rc;
2148
2149 }
2150
2151 static inline __u16
2152 __raw_devno_from_bus_id(char *id)
2153 {
2154 id += (strlen(id) - 4);
2155 return (__u16) simple_strtoul(id, &id, 16);
2156 }
2157
2158 static int
2159 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2160 unsigned long data)
2161 {
2162 struct qeth_cmd_buffer *iob;
2163
2164 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2165
2166 iob = (struct qeth_cmd_buffer *) data;
2167 memcpy(&card->token.ulp_connection_r,
2168 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2169 QETH_MPC_TOKEN_LENGTH);
2170 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2171 return 0;
2172 }
2173
2174 static int
2175 qeth_ulp_setup(struct qeth_card *card)
2176 {
2177 int rc;
2178 __u16 temp;
2179 struct qeth_cmd_buffer *iob;
2180
2181 QETH_DBF_TEXT(setup,2,"ulpsetup");
2182
2183 iob = qeth_wait_for_buffer(&card->write);
2184 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2185
2186 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2187 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2188 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2189 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2190 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2191 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2192
2193 temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2194 memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2195 temp = (card->info.cula << 8) + card->info.unit_addr2;
2196 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2197 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2198 qeth_ulp_setup_cb, NULL);
2199 return rc;
2200 }
2201
2202 static inline int
2203 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2204 unsigned int siga_error, const char *dbftext)
2205 {
2206 if (qdio_error || siga_error) {
2207 QETH_DBF_TEXT(trace, 2, dbftext);
2208 QETH_DBF_TEXT(qerr, 2, dbftext);
2209 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2210 buf->element[15].flags & 0xff);
2211 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2212 buf->element[14].flags & 0xff);
2213 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2214 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2215 return 1;
2216 }
2217 return 0;
2218 }
2219
2220 static inline struct sk_buff *
2221 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2222 {
2223 struct sk_buff* skb;
2224 int add_len;
2225
2226 add_len = 0;
2227 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2228 add_len = sizeof(struct qeth_hdr);
2229 #ifdef CONFIG_QETH_VLAN
2230 else
2231 add_len = VLAN_HLEN;
2232 #endif
2233 skb = dev_alloc_skb(length + add_len);
2234 if (skb && add_len)
2235 skb_reserve(skb, add_len);
2236 return skb;
2237 }
2238
2239 static inline struct sk_buff *
2240 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2241 struct qdio_buffer_element **__element, int *__offset,
2242 struct qeth_hdr **hdr)
2243 {
2244 struct qdio_buffer_element *element = *__element;
2245 int offset = *__offset;
2246 struct sk_buff *skb = NULL;
2247 int skb_len;
2248 void *data_ptr;
2249 int data_len;
2250
2251 QETH_DBF_TEXT(trace,6,"nextskb");
2252 /* qeth_hdr must not cross element boundaries */
2253 if (element->length < offset + sizeof(struct qeth_hdr)){
2254 if (qeth_is_last_sbale(element))
2255 return NULL;
2256 element++;
2257 offset = 0;
2258 if (element->length < sizeof(struct qeth_hdr))
2259 return NULL;
2260 }
2261 *hdr = element->addr + offset;
2262
2263 offset += sizeof(struct qeth_hdr);
2264 if (card->options.layer2)
2265 if (card->info.type == QETH_CARD_TYPE_OSN)
2266 skb_len = (*hdr)->hdr.osn.pdu_length;
2267 else
2268 skb_len = (*hdr)->hdr.l2.pkt_length;
2269 else
2270 skb_len = (*hdr)->hdr.l3.length;
2271
2272 if (!skb_len)
2273 return NULL;
2274 if (card->options.fake_ll){
2275 if(card->dev->type == ARPHRD_IEEE802_TR){
2276 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2277 goto no_mem;
2278 skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2279 } else {
2280 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2281 goto no_mem;
2282 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2283 }
2284 } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2285 goto no_mem;
2286 data_ptr = element->addr + offset;
2287 while (skb_len) {
2288 data_len = min(skb_len, (int)(element->length - offset));
2289 if (data_len)
2290 memcpy(skb_put(skb, data_len), data_ptr, data_len);
2291 skb_len -= data_len;
2292 if (skb_len){
2293 if (qeth_is_last_sbale(element)){
2294 QETH_DBF_TEXT(trace,4,"unexeob");
2295 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2296 QETH_DBF_TEXT(qerr,2,"unexeob");
2297 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2298 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2299 dev_kfree_skb_any(skb);
2300 card->stats.rx_errors++;
2301 return NULL;
2302 }
2303 element++;
2304 offset = 0;
2305 data_ptr = element->addr;
2306 } else {
2307 offset += data_len;
2308 }
2309 }
2310 *__element = element;
2311 *__offset = offset;
2312 return skb;
2313 no_mem:
2314 if (net_ratelimit()){
2315 PRINT_WARN("No memory for packet received on %s.\n",
2316 QETH_CARD_IFNAME(card));
2317 QETH_DBF_TEXT(trace,2,"noskbmem");
2318 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2319 }
2320 card->stats.rx_dropped++;
2321 return NULL;
2322 }
2323
2324 static inline __be16
2325 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2326 {
2327 struct qeth_card *card;
2328 struct ethhdr *eth;
2329
2330 QETH_DBF_TEXT(trace,6,"typtrans");
2331
2332 card = (struct qeth_card *)dev->priv;
2333 #ifdef CONFIG_TR
2334 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2335 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2336 return tr_type_trans(skb,dev);
2337 #endif /* CONFIG_TR */
2338 skb->mac.raw = skb->data;
2339 skb_pull(skb, ETH_HLEN );
2340 eth = eth_hdr(skb);
2341
2342 if (*eth->h_dest & 1) {
2343 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2344 skb->pkt_type = PACKET_BROADCAST;
2345 else
2346 skb->pkt_type = PACKET_MULTICAST;
2347 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2348 skb->pkt_type = PACKET_OTHERHOST;
2349
2350 if (ntohs(eth->h_proto) >= 1536)
2351 return eth->h_proto;
2352 if (*(unsigned short *) (skb->data) == 0xFFFF)
2353 return htons(ETH_P_802_3);
2354 return htons(ETH_P_802_2);
2355 }
2356
2357 static inline void
2358 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2359 struct qeth_hdr *hdr)
2360 {
2361 struct trh_hdr *fake_hdr;
2362 struct trllc *fake_llc;
2363 struct iphdr *ip_hdr;
2364
2365 QETH_DBF_TEXT(trace,5,"skbfktr");
2366 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2367 /* this is a fake ethernet header */
2368 fake_hdr = (struct trh_hdr *) skb->mac.raw;
2369
2370 /* the destination MAC address */
2371 switch (skb->pkt_type){
2372 case PACKET_MULTICAST:
2373 switch (skb->protocol){
2374 #ifdef CONFIG_QETH_IPV6
2375 case __constant_htons(ETH_P_IPV6):
2376 ndisc_mc_map((struct in6_addr *)
2377 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2378 fake_hdr->daddr, card->dev, 0);
2379 break;
2380 #endif /* CONFIG_QETH_IPV6 */
2381 case __constant_htons(ETH_P_IP):
2382 ip_hdr = (struct iphdr *)skb->data;
2383 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2384 break;
2385 default:
2386 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2387 }
2388 break;
2389 case PACKET_BROADCAST:
2390 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2391 break;
2392 default:
2393 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2394 }
2395 /* the source MAC address */
2396 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2397 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2398 else
2399 memset(fake_hdr->saddr, 0, TR_ALEN);
2400 fake_hdr->rcf=0;
2401 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2402 fake_llc->dsap = EXTENDED_SAP;
2403 fake_llc->ssap = EXTENDED_SAP;
2404 fake_llc->llc = UI_CMD;
2405 fake_llc->protid[0] = 0;
2406 fake_llc->protid[1] = 0;
2407 fake_llc->protid[2] = 0;
2408 fake_llc->ethertype = ETH_P_IP;
2409 }
2410
2411 static inline void
2412 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2413 struct qeth_hdr *hdr)
2414 {
2415 struct ethhdr *fake_hdr;
2416 struct iphdr *ip_hdr;
2417
2418 QETH_DBF_TEXT(trace,5,"skbfketh");
2419 skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2420 /* this is a fake ethernet header */
2421 fake_hdr = (struct ethhdr *) skb->mac.raw;
2422
2423 /* the destination MAC address */
2424 switch (skb->pkt_type){
2425 case PACKET_MULTICAST:
2426 switch (skb->protocol){
2427 #ifdef CONFIG_QETH_IPV6
2428 case __constant_htons(ETH_P_IPV6):
2429 ndisc_mc_map((struct in6_addr *)
2430 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2431 fake_hdr->h_dest, card->dev, 0);
2432 break;
2433 #endif /* CONFIG_QETH_IPV6 */
2434 case __constant_htons(ETH_P_IP):
2435 ip_hdr = (struct iphdr *)skb->data;
2436 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2437 break;
2438 default:
2439 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2440 }
2441 break;
2442 case PACKET_BROADCAST:
2443 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2444 break;
2445 default:
2446 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2447 }
2448 /* the source MAC address */
2449 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2450 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2451 else
2452 memset(fake_hdr->h_source, 0, ETH_ALEN);
2453 /* the protocol */
2454 fake_hdr->h_proto = skb->protocol;
2455 }
2456
2457 static inline void
2458 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2459 struct qeth_hdr *hdr)
2460 {
2461 if (card->dev->type == ARPHRD_IEEE802_TR)
2462 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2463 else
2464 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2465 }
2466
2467 static inline void
2468 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2469 struct qeth_hdr *hdr)
2470 {
2471 #ifdef CONFIG_QETH_VLAN
2472 u16 *vlan_tag;
2473
2474 if (hdr->hdr.l3.ext_flags &
2475 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2476 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2477 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2478 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2479 *(vlan_tag + 1) = skb->protocol;
2480 skb->protocol = __constant_htons(ETH_P_8021Q);
2481 }
2482 #endif /* CONFIG_QETH_VLAN */
2483 }
2484
2485 static inline __u16
2486 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2487 struct qeth_hdr *hdr)
2488 {
2489 unsigned short vlan_id = 0;
2490 #ifdef CONFIG_QETH_VLAN
2491 struct vlan_hdr *vhdr;
2492 #endif
2493
2494 skb->pkt_type = PACKET_HOST;
2495 skb->protocol = qeth_type_trans(skb, skb->dev);
2496 if (card->options.checksum_type == NO_CHECKSUMMING)
2497 skb->ip_summed = CHECKSUM_UNNECESSARY;
2498 else
2499 skb->ip_summed = CHECKSUM_NONE;
2500 #ifdef CONFIG_QETH_VLAN
2501 if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2502 vhdr = (struct vlan_hdr *) skb->data;
2503 skb->protocol =
2504 __constant_htons(vhdr->h_vlan_encapsulated_proto);
2505 vlan_id = hdr->hdr.l2.vlan_id;
2506 skb_pull(skb, VLAN_HLEN);
2507 }
2508 #endif
2509 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2510 return vlan_id;
2511 }
2512
2513 static inline void
2514 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2515 struct qeth_hdr *hdr)
2516 {
2517 #ifdef CONFIG_QETH_IPV6
2518 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2519 skb->pkt_type = PACKET_HOST;
2520 skb->protocol = qeth_type_trans(skb, card->dev);
2521 return;
2522 }
2523 #endif /* CONFIG_QETH_IPV6 */
2524 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2525 ETH_P_IP);
2526 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2527 case QETH_CAST_UNICAST:
2528 skb->pkt_type = PACKET_HOST;
2529 break;
2530 case QETH_CAST_MULTICAST:
2531 skb->pkt_type = PACKET_MULTICAST;
2532 card->stats.multicast++;
2533 break;
2534 case QETH_CAST_BROADCAST:
2535 skb->pkt_type = PACKET_BROADCAST;
2536 card->stats.multicast++;
2537 break;
2538 case QETH_CAST_ANYCAST:
2539 case QETH_CAST_NOCAST:
2540 default:
2541 skb->pkt_type = PACKET_HOST;
2542 }
2543 qeth_rebuild_skb_vlan(card, skb, hdr);
2544 if (card->options.fake_ll)
2545 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2546 else
2547 skb->mac.raw = skb->data;
2548 skb->ip_summed = card->options.checksum_type;
2549 if (card->options.checksum_type == HW_CHECKSUMMING){
2550 if ( (hdr->hdr.l3.ext_flags &
2551 (QETH_HDR_EXT_CSUM_HDR_REQ |
2552 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2553 (QETH_HDR_EXT_CSUM_HDR_REQ |
2554 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2555 skb->ip_summed = CHECKSUM_UNNECESSARY;
2556 else
2557 skb->ip_summed = SW_CHECKSUMMING;
2558 }
2559 }
2560
2561 static inline void
2562 qeth_process_inbound_buffer(struct qeth_card *card,
2563 struct qeth_qdio_buffer *buf, int index)
2564 {
2565 struct qdio_buffer_element *element;
2566 struct sk_buff *skb;
2567 struct qeth_hdr *hdr;
2568 int offset;
2569 int rxrc;
2570 __u16 vlan_tag = 0;
2571
2572 /* get first element of current buffer */
2573 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2574 offset = 0;
2575 #ifdef CONFIG_QETH_PERF_STATS
2576 card->perf_stats.bufs_rec++;
2577 #endif
2578 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2579 &offset, &hdr))) {
2580 skb->dev = card->dev;
2581 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2582 vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2583 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2584 qeth_rebuild_skb(card, skb, hdr);
2585 else { /*in case of OSN*/
2586 skb_push(skb, sizeof(struct qeth_hdr));
2587 memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2588 }
2589 /* is device UP ? */
2590 if (!(card->dev->flags & IFF_UP)){
2591 dev_kfree_skb_any(skb);
2592 continue;
2593 }
2594 #ifdef CONFIG_QETH_VLAN
2595 if (vlan_tag)
2596 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2597 else
2598 #endif
2599 if (card->info.type == QETH_CARD_TYPE_OSN)
2600 rxrc = card->osn_info.data_cb(skb);
2601 else
2602 rxrc = netif_rx(skb);
2603 card->dev->last_rx = jiffies;
2604 card->stats.rx_packets++;
2605 card->stats.rx_bytes += skb->len;
2606 }
2607 }
2608
2609 static inline struct qeth_buffer_pool_entry *
2610 qeth_get_buffer_pool_entry(struct qeth_card *card)
2611 {
2612 struct qeth_buffer_pool_entry *entry;
2613
2614 QETH_DBF_TEXT(trace, 6, "gtbfplen");
2615 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2616 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2617 struct qeth_buffer_pool_entry, list);
2618 list_del_init(&entry->list);
2619 return entry;
2620 }
2621 return NULL;
2622 }
2623
2624 static inline void
2625 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2626 {
2627 struct qeth_buffer_pool_entry *pool_entry;
2628 int i;
2629
2630 pool_entry = qeth_get_buffer_pool_entry(card);
2631 /*
2632 * since the buffer is accessed only from the input_tasklet
2633 * there shouldn't be a need to synchronize; also, since we use
2634 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2635 * buffers
2636 */
2637 BUG_ON(!pool_entry);
2638
2639 buf->pool_entry = pool_entry;
2640 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2641 buf->buffer->element[i].length = PAGE_SIZE;
2642 buf->buffer->element[i].addr = pool_entry->elements[i];
2643 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2644 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2645 else
2646 buf->buffer->element[i].flags = 0;
2647 }
2648 buf->state = QETH_QDIO_BUF_EMPTY;
2649 }
2650
2651 static inline void
2652 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2653 struct qeth_qdio_out_buffer *buf)
2654 {
2655 int i;
2656 struct sk_buff *skb;
2657
2658 /* is PCI flag set on buffer? */
2659 if (buf->buffer->element[0].flags & 0x40)
2660 atomic_dec(&queue->set_pci_flags_count);
2661
2662 while ((skb = skb_dequeue(&buf->skb_list))){
2663 atomic_dec(&skb->users);
2664 dev_kfree_skb_any(skb);
2665 }
2666 qeth_eddp_buf_release_contexts(buf);
2667 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2668 buf->buffer->element[i].length = 0;
2669 buf->buffer->element[i].addr = NULL;
2670 buf->buffer->element[i].flags = 0;
2671 }
2672 buf->next_element_to_fill = 0;
2673 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2674 }
2675
2676 static inline void
2677 qeth_queue_input_buffer(struct qeth_card *card, int index)
2678 {
2679 struct qeth_qdio_q *queue = card->qdio.in_q;
2680 int count;
2681 int i;
2682 int rc;
2683
2684 QETH_DBF_TEXT(trace,6,"queinbuf");
2685 count = (index < queue->next_buf_to_init)?
2686 card->qdio.in_buf_pool.buf_count -
2687 (queue->next_buf_to_init - index) :
2688 card->qdio.in_buf_pool.buf_count -
2689 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2690 /* only requeue at a certain threshold to avoid SIGAs */
2691 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2692 for (i = queue->next_buf_to_init;
2693 i < queue->next_buf_to_init + count; ++i)
2694 qeth_init_input_buffer(card,
2695 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2696 /*
2697 * according to old code it should be avoided to requeue all
2698 * 128 buffers in order to benefit from PCI avoidance.
2699 * this function keeps at least one buffer (the buffer at
2700 * 'index') un-requeued -> this buffer is the first buffer that
2701 * will be requeued the next time
2702 */
2703 #ifdef CONFIG_QETH_PERF_STATS
2704 card->perf_stats.inbound_do_qdio_cnt++;
2705 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2706 #endif
2707 rc = do_QDIO(CARD_DDEV(card),
2708 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2709 0, queue->next_buf_to_init, count, NULL);
2710 #ifdef CONFIG_QETH_PERF_STATS
2711 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2712 card->perf_stats.inbound_do_qdio_start_time;
2713 #endif
2714 if (rc){
2715 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2716 "return %i (device %s).\n",
2717 rc, CARD_DDEV_ID(card));
2718 QETH_DBF_TEXT(trace,2,"qinberr");
2719 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2720 }
2721 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2722 QDIO_MAX_BUFFERS_PER_Q;
2723 }
2724 }
2725
2726 static inline void
2727 qeth_put_buffer_pool_entry(struct qeth_card *card,
2728 struct qeth_buffer_pool_entry *entry)
2729 {
2730 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2731 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2732 }
2733
2734 static void
2735 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2736 unsigned int qdio_err, unsigned int siga_err,
2737 unsigned int queue, int first_element, int count,
2738 unsigned long card_ptr)
2739 {
2740 struct net_device *net_dev;
2741 struct qeth_card *card;
2742 struct qeth_qdio_buffer *buffer;
2743 int index;
2744 int i;
2745
2746 QETH_DBF_TEXT(trace, 6, "qdinput");
2747 card = (struct qeth_card *) card_ptr;
2748 net_dev = card->dev;
2749 #ifdef CONFIG_QETH_PERF_STATS
2750 card->perf_stats.inbound_cnt++;
2751 card->perf_stats.inbound_start_time = qeth_get_micros();
2752 #endif
2753 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2754 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2755 QETH_DBF_TEXT(trace, 1,"qdinchk");
2756 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2757 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2758 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2759 qeth_schedule_recovery(card);
2760 return;
2761 }
2762 }
2763 for (i = first_element; i < (first_element + count); ++i) {
2764 index = i % QDIO_MAX_BUFFERS_PER_Q;
2765 buffer = &card->qdio.in_q->bufs[index];
2766 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2767 qeth_check_qdio_errors(buffer->buffer,
2768 qdio_err, siga_err,"qinerr")))
2769 qeth_process_inbound_buffer(card, buffer, index);
2770 /* clear buffer and give back to hardware */
2771 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2772 qeth_queue_input_buffer(card, index);
2773 }
2774 #ifdef CONFIG_QETH_PERF_STATS
2775 card->perf_stats.inbound_time += qeth_get_micros() -
2776 card->perf_stats.inbound_start_time;
2777 #endif
2778 }
2779
2780 static inline int
2781 qeth_handle_send_error(struct qeth_card *card,
2782 struct qeth_qdio_out_buffer *buffer,
2783 unsigned int qdio_err, unsigned int siga_err)
2784 {
2785 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2786 int cc = siga_err & 3;
2787
2788 QETH_DBF_TEXT(trace, 6, "hdsnderr");
2789 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2790 switch (cc) {
2791 case 0:
2792 if (qdio_err){
2793 QETH_DBF_TEXT(trace, 1,"lnkfail");
2794 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2795 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2796 (u16)qdio_err, (u8)sbalf15);
2797 return QETH_SEND_ERROR_LINK_FAILURE;
2798 }
2799 return QETH_SEND_ERROR_NONE;
2800 case 2:
2801 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2802 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2803 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2804 return QETH_SEND_ERROR_KICK_IT;
2805 }
2806 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2807 return QETH_SEND_ERROR_RETRY;
2808 return QETH_SEND_ERROR_LINK_FAILURE;
2809 /* look at qdio_error and sbalf 15 */
2810 case 1:
2811 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2812 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2813 return QETH_SEND_ERROR_LINK_FAILURE;
2814 case 3:
2815 default:
2816 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2817 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2818 return QETH_SEND_ERROR_KICK_IT;
2819 }
2820 }
2821
2822 void
2823 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2824 int index, int count)
2825 {
2826 struct qeth_qdio_out_buffer *buf;
2827 int rc;
2828 int i;
2829
2830 QETH_DBF_TEXT(trace, 6, "flushbuf");
2831
2832 for (i = index; i < index + count; ++i) {
2833 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2834 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2835 SBAL_FLAGS_LAST_ENTRY;
2836
2837 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2838 continue;
2839
2840 if (!queue->do_pack){
2841 if ((atomic_read(&queue->used_buffers) >=
2842 (QETH_HIGH_WATERMARK_PACK -
2843 QETH_WATERMARK_PACK_FUZZ)) &&
2844 !atomic_read(&queue->set_pci_flags_count)){
2845 /* it's likely that we'll go to packing
2846 * mode soon */
2847 atomic_inc(&queue->set_pci_flags_count);
2848 buf->buffer->element[0].flags |= 0x40;
2849 }
2850 } else {
2851 if (!atomic_read(&queue->set_pci_flags_count)){
2852 /*
2853 * there's no outstanding PCI any more, so we
2854 * have to request a PCI to be sure the the PCI
2855 * will wake at some time in the future then we
2856 * can flush packed buffers that might still be
2857 * hanging around, which can happen if no
2858 * further send was requested by the stack
2859 */
2860 atomic_inc(&queue->set_pci_flags_count);
2861 buf->buffer->element[0].flags |= 0x40;
2862 }
2863 }
2864 }
2865
2866 queue->card->dev->trans_start = jiffies;
2867 #ifdef CONFIG_QETH_PERF_STATS
2868 queue->card->perf_stats.outbound_do_qdio_cnt++;
2869 queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2870 #endif
2871 if (under_int)
2872 rc = do_QDIO(CARD_DDEV(queue->card),
2873 QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2874 queue->queue_no, index, count, NULL);
2875 else
2876 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2877 queue->queue_no, index, count, NULL);
2878 #ifdef CONFIG_QETH_PERF_STATS
2879 queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2880 queue->card->perf_stats.outbound_do_qdio_start_time;
2881 #endif
2882 if (rc){
2883 QETH_DBF_TEXT(trace, 2, "flushbuf");
2884 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2885 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2886 queue->card->stats.tx_errors += count;
2887 /* this must not happen under normal circumstances. if it
2888 * happens something is really wrong -> recover */
2889 qeth_schedule_recovery(queue->card);
2890 return;
2891 }
2892 atomic_add(count, &queue->used_buffers);
2893 #ifdef CONFIG_QETH_PERF_STATS
2894 queue->card->perf_stats.bufs_sent += count;
2895 #endif
2896 }
2897
2898 /*
2899 * Switched to packing state if the number of used buffers on a queue
2900 * reaches a certain limit.
2901 */
2902 static inline void
2903 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2904 {
2905 if (!queue->do_pack) {
2906 if (atomic_read(&queue->used_buffers)
2907 >= QETH_HIGH_WATERMARK_PACK){
2908 /* switch non-PACKING -> PACKING */
2909 QETH_DBF_TEXT(trace, 6, "np->pack");
2910 #ifdef CONFIG_QETH_PERF_STATS
2911 queue->card->perf_stats.sc_dp_p++;
2912 #endif
2913 queue->do_pack = 1;
2914 }
2915 }
2916 }
2917
2918 /*
2919 * Switches from packing to non-packing mode. If there is a packing
2920 * buffer on the queue this buffer will be prepared to be flushed.
2921 * In that case 1 is returned to inform the caller. If no buffer
2922 * has to be flushed, zero is returned.
2923 */
2924 static inline int
2925 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2926 {
2927 struct qeth_qdio_out_buffer *buffer;
2928 int flush_count = 0;
2929
2930 if (queue->do_pack) {
2931 if (atomic_read(&queue->used_buffers)
2932 <= QETH_LOW_WATERMARK_PACK) {
2933 /* switch PACKING -> non-PACKING */
2934 QETH_DBF_TEXT(trace, 6, "pack->np");
2935 #ifdef CONFIG_QETH_PERF_STATS
2936 queue->card->perf_stats.sc_p_dp++;
2937 #endif
2938 queue->do_pack = 0;
2939 /* flush packing buffers */
2940 buffer = &queue->bufs[queue->next_buf_to_fill];
2941 if ((atomic_read(&buffer->state) ==
2942 QETH_QDIO_BUF_EMPTY) &&
2943 (buffer->next_element_to_fill > 0)) {
2944 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2945 flush_count++;
2946 queue->next_buf_to_fill =
2947 (queue->next_buf_to_fill + 1) %
2948 QDIO_MAX_BUFFERS_PER_Q;
2949 }
2950 }
2951 }
2952 return flush_count;
2953 }
2954
2955 /*
2956 * Called to flush a packing buffer if no more pci flags are on the queue.
2957 * Checks if there is a packing buffer and prepares it to be flushed.
2958 * In that case returns 1, otherwise zero.
2959 */
2960 static inline int
2961 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2962 {
2963 struct qeth_qdio_out_buffer *buffer;
2964
2965 buffer = &queue->bufs[queue->next_buf_to_fill];
2966 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2967 (buffer->next_element_to_fill > 0)){
2968 /* it's a packing buffer */
2969 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2970 queue->next_buf_to_fill =
2971 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2972 return 1;
2973 }
2974 return 0;
2975 }
2976
2977 static inline void
2978 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2979 {
2980 int index;
2981 int flush_cnt = 0;
2982 int q_was_packing = 0;
2983
2984 /*
2985 * check if weed have to switch to non-packing mode or if
2986 * we have to get a pci flag out on the queue
2987 */
2988 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2989 !atomic_read(&queue->set_pci_flags_count)){
2990 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2991 QETH_OUT_Q_UNLOCKED) {
2992 /*
2993 * If we get in here, there was no action in
2994 * do_send_packet. So, we check if there is a
2995 * packing buffer to be flushed here.
2996 */
2997 netif_stop_queue(queue->card->dev);
2998 index = queue->next_buf_to_fill;
2999 q_was_packing = queue->do_pack;
3000 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3001 if (!flush_cnt &&
3002 !atomic_read(&queue->set_pci_flags_count))
3003 flush_cnt +=
3004 qeth_flush_buffers_on_no_pci(queue);
3005 #ifdef CONFIG_QETH_PERF_STATS
3006 if (q_was_packing)
3007 queue->card->perf_stats.bufs_sent_pack +=
3008 flush_cnt;
3009 #endif
3010 if (flush_cnt)
3011 qeth_flush_buffers(queue, 1, index, flush_cnt);
3012 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3013 }
3014 }
3015 }
3016
3017 static void
3018 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3019 unsigned int qdio_error, unsigned int siga_error,
3020 unsigned int __queue, int first_element, int count,
3021 unsigned long card_ptr)
3022 {
3023 struct qeth_card *card = (struct qeth_card *) card_ptr;
3024 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3025 struct qeth_qdio_out_buffer *buffer;
3026 int i;
3027
3028 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3029 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3030 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3031 QETH_DBF_TEXT(trace, 2, "achkcond");
3032 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3033 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3034 netif_stop_queue(card->dev);
3035 qeth_schedule_recovery(card);
3036 return;
3037 }
3038 }
3039 #ifdef CONFIG_QETH_PERF_STATS
3040 card->perf_stats.outbound_handler_cnt++;
3041 card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3042 #endif
3043 for(i = first_element; i < (first_element + count); ++i){
3044 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3045 /*we only handle the KICK_IT error by doing a recovery */
3046 if (qeth_handle_send_error(card, buffer,
3047 qdio_error, siga_error)
3048 == QETH_SEND_ERROR_KICK_IT){
3049 netif_stop_queue(card->dev);
3050 qeth_schedule_recovery(card);
3051 return;
3052 }
3053 qeth_clear_output_buffer(queue, buffer);
3054 }
3055 atomic_sub(count, &queue->used_buffers);
3056 /* check if we need to do something on this outbound queue */
3057 if (card->info.type != QETH_CARD_TYPE_IQD)
3058 qeth_check_outbound_queue(queue);
3059
3060 netif_wake_queue(queue->card->dev);
3061 #ifdef CONFIG_QETH_PERF_STATS
3062 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3063 card->perf_stats.outbound_handler_start_time;
3064 #endif
3065 }
3066
3067 static void
3068 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3069 {
3070
3071 param_field[0] = _ascebc['P'];
3072 param_field[1] = _ascebc['C'];
3073 param_field[2] = _ascebc['I'];
3074 param_field[3] = _ascebc['T'];
3075 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3076 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3077 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3078 }
3079
3080 static void
3081 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3082 {
3083 param_field[16] = _ascebc['B'];
3084 param_field[17] = _ascebc['L'];
3085 param_field[18] = _ascebc['K'];
3086 param_field[19] = _ascebc['T'];
3087 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3088 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3089 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3090 }
3091
3092 static void
3093 qeth_initialize_working_pool_list(struct qeth_card *card)
3094 {
3095 struct qeth_buffer_pool_entry *entry;
3096
3097 QETH_DBF_TEXT(trace,5,"inwrklst");
3098
3099 list_for_each_entry(entry,
3100 &card->qdio.init_pool.entry_list, init_list) {
3101 qeth_put_buffer_pool_entry(card,entry);
3102 }
3103 }
3104
3105 static void
3106 qeth_clear_working_pool_list(struct qeth_card *card)
3107 {
3108 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3109
3110 QETH_DBF_TEXT(trace,5,"clwrklst");
3111 list_for_each_entry_safe(pool_entry, tmp,
3112 &card->qdio.in_buf_pool.entry_list, list){
3113 list_del(&pool_entry->list);
3114 }
3115 }
3116
3117 static void
3118 qeth_free_buffer_pool(struct qeth_card *card)
3119 {
3120 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3121 int i=0;
3122 QETH_DBF_TEXT(trace,5,"freepool");
3123 list_for_each_entry_safe(pool_entry, tmp,
3124 &card->qdio.init_pool.entry_list, init_list){
3125 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3126 free_page((unsigned long)pool_entry->elements[i]);
3127 list_del(&pool_entry->init_list);
3128 kfree(pool_entry);
3129 }
3130 }
3131
3132 static int
3133 qeth_alloc_buffer_pool(struct qeth_card *card)
3134 {
3135 struct qeth_buffer_pool_entry *pool_entry;
3136 void *ptr;
3137 int i, j;
3138
3139 QETH_DBF_TEXT(trace,5,"alocpool");
3140 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3141 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3142 if (!pool_entry){
3143 qeth_free_buffer_pool(card);
3144 return -ENOMEM;
3145 }
3146 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3147 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3148 if (!ptr) {
3149 while (j > 0)
3150 free_page((unsigned long)
3151 pool_entry->elements[--j]);
3152 kfree(pool_entry);
3153 qeth_free_buffer_pool(card);
3154 return -ENOMEM;
3155 }
3156 pool_entry->elements[j] = ptr;
3157 }
3158 list_add(&pool_entry->init_list,
3159 &card->qdio.init_pool.entry_list);
3160 }
3161 return 0;
3162 }
3163
3164 int
3165 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3166 {
3167 QETH_DBF_TEXT(trace, 2, "realcbp");
3168
3169 if ((card->state != CARD_STATE_DOWN) &&
3170 (card->state != CARD_STATE_RECOVER))
3171 return -EPERM;
3172
3173 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3174 qeth_clear_working_pool_list(card);
3175 qeth_free_buffer_pool(card);
3176 card->qdio.in_buf_pool.buf_count = bufcnt;
3177 card->qdio.init_pool.buf_count = bufcnt;
3178 return qeth_alloc_buffer_pool(card);
3179 }
3180
3181 static int
3182 qeth_alloc_qdio_buffers(struct qeth_card *card)
3183 {
3184 int i, j;
3185
3186 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3187
3188 if (card->qdio.state == QETH_QDIO_ALLOCATED)
3189 return 0;
3190
3191 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3192 GFP_KERNEL|GFP_DMA);
3193 if (!card->qdio.in_q)
3194 return - ENOMEM;
3195 QETH_DBF_TEXT(setup, 2, "inq");
3196 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3197 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3198 /* give inbound qeth_qdio_buffers their qdio_buffers */
3199 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3200 card->qdio.in_q->bufs[i].buffer =
3201 &card->qdio.in_q->qdio_bufs[i];
3202 /* inbound buffer pool */
3203 if (qeth_alloc_buffer_pool(card)){
3204 kfree(card->qdio.in_q);
3205 return -ENOMEM;
3206 }
3207 /* outbound */
3208 card->qdio.out_qs =
3209 kmalloc(card->qdio.no_out_queues *
3210 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3211 if (!card->qdio.out_qs){
3212 qeth_free_buffer_pool(card);
3213 return -ENOMEM;
3214 }
3215 for (i = 0; i < card->qdio.no_out_queues; ++i){
3216 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3217 GFP_KERNEL|GFP_DMA);
3218 if (!card->qdio.out_qs[i]){
3219 while (i > 0)
3220 kfree(card->qdio.out_qs[--i]);
3221 kfree(card->qdio.out_qs);
3222 return -ENOMEM;
3223 }
3224 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3225 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3226 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3227 card->qdio.out_qs[i]->queue_no = i;
3228 /* give outbound qeth_qdio_buffers their qdio_buffers */
3229 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3230 card->qdio.out_qs[i]->bufs[j].buffer =
3231 &card->qdio.out_qs[i]->qdio_bufs[j];
3232 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3233 skb_list);
3234 lockdep_set_class(
3235 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3236 &qdio_out_skb_queue_key);
3237 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3238 }
3239 }
3240 card->qdio.state = QETH_QDIO_ALLOCATED;
3241 return 0;
3242 }
3243
3244 static void
3245 qeth_free_qdio_buffers(struct qeth_card *card)
3246 {
3247 int i, j;
3248
3249 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3250 if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3251 return;
3252 kfree(card->qdio.in_q);
3253 /* inbound buffer pool */
3254 qeth_free_buffer_pool(card);
3255 /* free outbound qdio_qs */
3256 for (i = 0; i < card->qdio.no_out_queues; ++i){
3257 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3258 qeth_clear_output_buffer(card->qdio.out_qs[i],
3259 &card->qdio.out_qs[i]->bufs[j]);
3260 kfree(card->qdio.out_qs[i]);
3261 }
3262 kfree(card->qdio.out_qs);
3263 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3264 }
3265
3266 static void
3267 qeth_clear_qdio_buffers(struct qeth_card *card)
3268 {
3269 int i, j;
3270
3271 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3272 /* clear outbound buffers to free skbs */
3273 for (i = 0; i < card->qdio.no_out_queues; ++i)
3274 if (card->qdio.out_qs[i]){
3275 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3276 qeth_clear_output_buffer(card->qdio.out_qs[i],
3277 &card->qdio.out_qs[i]->bufs[j]);
3278 }
3279 }
3280
3281 static void
3282 qeth_init_qdio_info(struct qeth_card *card)
3283 {
3284 QETH_DBF_TEXT(setup, 4, "intqdinf");
3285 card->qdio.state = QETH_QDIO_UNINITIALIZED;
3286 /* inbound */
3287 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3288 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3289 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3290 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3291 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3292 }
3293
3294 static int
3295 qeth_init_qdio_queues(struct qeth_card *card)
3296 {
3297 int i, j;
3298 int rc;
3299
3300 QETH_DBF_TEXT(setup, 2, "initqdqs");
3301
3302 /* inbound queue */
3303 memset(card->qdio.in_q->qdio_bufs, 0,
3304 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3305 qeth_initialize_working_pool_list(card);
3306 /*give only as many buffers to hardware as we have buffer pool entries*/
3307 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3308 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3309 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3310 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3311 card->qdio.in_buf_pool.buf_count - 1, NULL);
3312 if (rc) {
3313 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3314 return rc;
3315 }
3316 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3317 if (rc) {
3318 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3319 return rc;
3320 }
3321 /* outbound queue */
3322 for (i = 0; i < card->qdio.no_out_queues; ++i){
3323 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3324 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3325 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3326 qeth_clear_output_buffer(card->qdio.out_qs[i],
3327 &card->qdio.out_qs[i]->bufs[j]);
3328 }
3329 card->qdio.out_qs[i]->card = card;
3330 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3331 card->qdio.out_qs[i]->do_pack = 0;
3332 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3333 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3334 atomic_set(&card->qdio.out_qs[i]->state,
3335 QETH_OUT_Q_UNLOCKED);
3336 }
3337 return 0;
3338 }
3339
3340 static int
3341 qeth_qdio_establish(struct qeth_card *card)
3342 {
3343 struct qdio_initialize init_data;
3344 char *qib_param_field;
3345 struct qdio_buffer **in_sbal_ptrs;
3346 struct qdio_buffer **out_sbal_ptrs;
3347 int i, j, k;
3348 int rc;
3349
3350 QETH_DBF_TEXT(setup, 2, "qdioest");
3351
3352 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3353 GFP_KERNEL);
3354 if (!qib_param_field)
3355 return -ENOMEM;
3356
3357 qeth_create_qib_param_field(card, qib_param_field);
3358 qeth_create_qib_param_field_blkt(card, qib_param_field);
3359
3360 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3361 GFP_KERNEL);
3362 if (!in_sbal_ptrs) {
3363 kfree(qib_param_field);
3364 return -ENOMEM;
3365 }
3366 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3367 in_sbal_ptrs[i] = (struct qdio_buffer *)
3368 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3369
3370 out_sbal_ptrs =
3371 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3372 sizeof(void *), GFP_KERNEL);
3373 if (!out_sbal_ptrs) {
3374 kfree(in_sbal_ptrs);
3375 kfree(qib_param_field);
3376 return -ENOMEM;
3377 }
3378 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3379 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3380 out_sbal_ptrs[k] = (struct qdio_buffer *)
3381 virt_to_phys(card->qdio.out_qs[i]->
3382 bufs[j].buffer);
3383 }
3384
3385 memset(&init_data, 0, sizeof(struct qdio_initialize));
3386 init_data.cdev = CARD_DDEV(card);
3387 init_data.q_format = qeth_get_qdio_q_format(card);
3388 init_data.qib_param_field_format = 0;
3389 init_data.qib_param_field = qib_param_field;
3390 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3391 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3392 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3393 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3394 init_data.no_input_qs = 1;
3395 init_data.no_output_qs = card->qdio.no_out_queues;
3396 init_data.input_handler = (qdio_handler_t *)
3397 qeth_qdio_input_handler;
3398 init_data.output_handler = (qdio_handler_t *)
3399 qeth_qdio_output_handler;
3400 init_data.int_parm = (unsigned long) card;
3401 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3402 QDIO_OUTBOUND_0COPY_SBALS |
3403 QDIO_USE_OUTBOUND_PCIS;
3404 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3405 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3406
3407 if (!(rc = qdio_initialize(&init_data)))
3408 card->qdio.state = QETH_QDIO_ESTABLISHED;
3409
3410 kfree(out_sbal_ptrs);
3411 kfree(in_sbal_ptrs);
3412 kfree(qib_param_field);
3413 return rc;
3414 }
3415
3416 static int
3417 qeth_qdio_activate(struct qeth_card *card)
3418 {
3419 QETH_DBF_TEXT(setup,3,"qdioact");
3420 return qdio_activate(CARD_DDEV(card), 0);
3421 }
3422
3423 static int
3424 qeth_clear_channel(struct qeth_channel *channel)
3425 {
3426 unsigned long flags;
3427 struct qeth_card *card;
3428 int rc;
3429
3430 QETH_DBF_TEXT(trace,3,"clearch");
3431 card = CARD_FROM_CDEV(channel->ccwdev);
3432 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3433 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3434 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3435
3436 if (rc)
3437 return rc;
3438 rc = wait_event_interruptible_timeout(card->wait_q,
3439 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3440 if (rc == -ERESTARTSYS)
3441 return rc;
3442 if (channel->state != CH_STATE_STOPPED)
3443 return -ETIME;
3444 channel->state = CH_STATE_DOWN;
3445 return 0;
3446 }
3447
3448 static int
3449 qeth_halt_channel(struct qeth_channel *channel)
3450 {
3451 unsigned long flags;
3452 struct qeth_card *card;
3453 int rc;
3454
3455 QETH_DBF_TEXT(trace,3,"haltch");
3456 card = CARD_FROM_CDEV(channel->ccwdev);
3457 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3458 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3459 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3460
3461 if (rc)
3462 return rc;
3463 rc = wait_event_interruptible_timeout(card->wait_q,
3464 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3465 if (rc == -ERESTARTSYS)
3466 return rc;
3467 if (channel->state != CH_STATE_HALTED)
3468 return -ETIME;
3469 return 0;
3470 }
3471
3472 static int
3473 qeth_halt_channels(struct qeth_card *card)
3474 {
3475 int rc1 = 0, rc2=0, rc3 = 0;
3476
3477 QETH_DBF_TEXT(trace,3,"haltchs");
3478 rc1 = qeth_halt_channel(&card->read);
3479 rc2 = qeth_halt_channel(&card->write);
3480 rc3 = qeth_halt_channel(&card->data);
3481 if (rc1)
3482 return rc1;
3483 if (rc2)
3484 return rc2;
3485 return rc3;
3486 }
3487 static int
3488 qeth_clear_channels(struct qeth_card *card)
3489 {
3490 int rc1 = 0, rc2=0, rc3 = 0;
3491
3492 QETH_DBF_TEXT(trace,3,"clearchs");
3493 rc1 = qeth_clear_channel(&card->read);
3494 rc2 = qeth_clear_channel(&card->write);
3495 rc3 = qeth_clear_channel(&card->data);
3496 if (rc1)
3497 return rc1;
3498 if (rc2)
3499 return rc2;
3500 return rc3;
3501 }
3502
3503 static int
3504 qeth_clear_halt_card(struct qeth_card *card, int halt)
3505 {
3506 int rc = 0;
3507
3508 QETH_DBF_TEXT(trace,3,"clhacrd");
3509 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3510
3511 if (halt)
3512 rc = qeth_halt_channels(card);
3513 if (rc)
3514 return rc;
3515 return qeth_clear_channels(card);
3516 }
3517
3518 static int
3519 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3520 {
3521 int rc = 0;
3522
3523 QETH_DBF_TEXT(trace,3,"qdioclr");
3524 if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3525 if ((rc = qdio_cleanup(CARD_DDEV(card),
3526 (card->info.type == QETH_CARD_TYPE_IQD) ?
3527 QDIO_FLAG_CLEANUP_USING_HALT :
3528 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3529 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3530 card->qdio.state = QETH_QDIO_ALLOCATED;
3531 }
3532 if ((rc = qeth_clear_halt_card(card, use_halt)))
3533 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3534 card->state = CARD_STATE_DOWN;
3535 return rc;
3536 }
3537
3538 static int
3539 qeth_dm_act(struct qeth_card *card)
3540 {
3541 int rc;
3542 struct qeth_cmd_buffer *iob;
3543
3544 QETH_DBF_TEXT(setup,2,"dmact");
3545
3546 iob = qeth_wait_for_buffer(&card->write);
3547 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3548
3549 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3550 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3551 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3552 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3553 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3554 return rc;
3555 }
3556
3557 static int
3558 qeth_mpc_initialize(struct qeth_card *card)
3559 {
3560 int rc;
3561
3562 QETH_DBF_TEXT(setup,2,"mpcinit");
3563
3564 if ((rc = qeth_issue_next_read(card))){
3565 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3566 return rc;
3567 }
3568 if ((rc = qeth_cm_enable(card))){
3569 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3570 goto out_qdio;
3571 }
3572 if ((rc = qeth_cm_setup(card))){
3573 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3574 goto out_qdio;
3575 }
3576 if ((rc = qeth_ulp_enable(card))){
3577 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3578 goto out_qdio;
3579 }
3580 if ((rc = qeth_ulp_setup(card))){
3581 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3582 goto out_qdio;
3583 }
3584 if ((rc = qeth_alloc_qdio_buffers(card))){
3585 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3586 goto out_qdio;
3587 }
3588 if ((rc = qeth_qdio_establish(card))){
3589 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3590 qeth_free_qdio_buffers(card);
3591 goto out_qdio;
3592 }
3593 if ((rc = qeth_qdio_activate(card))){
3594 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3595 goto out_qdio;
3596 }
3597 if ((rc = qeth_dm_act(card))){
3598 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3599 goto out_qdio;
3600 }
3601
3602 return 0;
3603 out_qdio:
3604 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3605 return rc;
3606 }
3607
3608 static struct net_device *
3609 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3610 {
3611 struct net_device *dev = NULL;
3612
3613 switch (type) {
3614 case QETH_CARD_TYPE_OSAE:
3615 switch (linktype) {
3616 case QETH_LINK_TYPE_LANE_TR:
3617 case QETH_LINK_TYPE_HSTR:
3618 #ifdef CONFIG_TR
3619 dev = alloc_trdev(0);
3620 #endif /* CONFIG_TR */
3621 break;
3622 default:
3623 dev = alloc_etherdev(0);
3624 }
3625 break;
3626 case QETH_CARD_TYPE_IQD:
3627 dev = alloc_netdev(0, "hsi%d", ether_setup);
3628 break;
3629 case QETH_CARD_TYPE_OSN:
3630 dev = alloc_netdev(0, "osn%d", ether_setup);
3631 break;
3632 default:
3633 dev = alloc_etherdev(0);
3634 }
3635 return dev;
3636 }
3637
3638 /*hard_header fake function; used in case fake_ll is set */
3639 static int
3640 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3641 unsigned short type, void *daddr, void *saddr,
3642 unsigned len)
3643 {
3644 if(dev->type == ARPHRD_IEEE802_TR){
3645 struct trh_hdr *hdr;
3646 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3647 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3648 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3649 return QETH_FAKE_LL_LEN_TR;
3650
3651 } else {
3652 struct ethhdr *hdr;
3653 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3654 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3655 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3656 if (type != ETH_P_802_3)
3657 hdr->h_proto = htons(type);
3658 else
3659 hdr->h_proto = htons(len);
3660 return QETH_FAKE_LL_LEN_ETH;
3661
3662 }
3663 }
3664
3665 static inline int
3666 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3667
3668 static int
3669 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3670 {
3671 int rc;
3672 struct qeth_card *card;
3673
3674 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3675 card = (struct qeth_card *)dev->priv;
3676 if (skb==NULL) {
3677 card->stats.tx_dropped++;
3678 card->stats.tx_errors++;
3679 /* return OK; otherwise ksoftirqd goes to 100% */
3680 return NETDEV_TX_OK;
3681 }
3682 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3683 card->stats.tx_dropped++;
3684 card->stats.tx_errors++;
3685 card->stats.tx_carrier_errors++;
3686 dev_kfree_skb_any(skb);
3687 /* return OK; otherwise ksoftirqd goes to 100% */
3688 return NETDEV_TX_OK;
3689 }
3690 #ifdef CONFIG_QETH_PERF_STATS
3691 card->perf_stats.outbound_cnt++;
3692 card->perf_stats.outbound_start_time = qeth_get_micros();
3693 #endif
3694 netif_stop_queue(dev);
3695 if ((rc = qeth_send_packet(card, skb))) {
3696 if (rc == -EBUSY) {
3697 return NETDEV_TX_BUSY;
3698 } else {
3699 card->stats.tx_errors++;
3700 card->stats.tx_dropped++;
3701 dev_kfree_skb_any(skb);
3702 /*set to OK; otherwise ksoftirqd goes to 100% */
3703 rc = NETDEV_TX_OK;
3704 }
3705 }
3706 netif_wake_queue(dev);
3707 #ifdef CONFIG_QETH_PERF_STATS
3708 card->perf_stats.outbound_time += qeth_get_micros() -
3709 card->perf_stats.outbound_start_time;
3710 #endif
3711 return rc;
3712 }
3713
3714 static int
3715 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3716 {
3717 int rc = 0;
3718 #ifdef CONFIG_QETH_VLAN
3719 struct vlan_group *vg;
3720 int i;
3721
3722 if (!(vg = card->vlangrp))
3723 return rc;
3724
3725 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3726 if (vg->vlan_devices[i] == dev){
3727 rc = QETH_VLAN_CARD;
3728 break;
3729 }
3730 }
3731 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3732 return 0;
3733
3734 #endif
3735 return rc;
3736 }
3737
3738 static int
3739 qeth_verify_dev(struct net_device *dev)
3740 {
3741 struct qeth_card *card;
3742 unsigned long flags;
3743 int rc = 0;
3744
3745 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3746 list_for_each_entry(card, &qeth_card_list.list, list){
3747 if (card->dev == dev){
3748 rc = QETH_REAL_CARD;
3749 break;
3750 }
3751 rc = qeth_verify_vlan_dev(dev, card);
3752 if (rc)
3753 break;
3754 }
3755 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3756
3757 return rc;
3758 }
3759
3760 static struct qeth_card *
3761 qeth_get_card_from_dev(struct net_device *dev)
3762 {
3763 struct qeth_card *card = NULL;
3764 int rc;
3765
3766 rc = qeth_verify_dev(dev);
3767 if (rc == QETH_REAL_CARD)
3768 card = (struct qeth_card *)dev->priv;
3769 else if (rc == QETH_VLAN_CARD)
3770 card = (struct qeth_card *)
3771 VLAN_DEV_INFO(dev)->real_dev->priv;
3772
3773 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3774 return card ;
3775 }
3776
3777 static void
3778 qeth_tx_timeout(struct net_device *dev)
3779 {
3780 struct qeth_card *card;
3781
3782 card = (struct qeth_card *) dev->priv;
3783 card->stats.tx_errors++;
3784 qeth_schedule_recovery(card);
3785 }
3786
3787 static int
3788 qeth_open(struct net_device *dev)
3789 {
3790 struct qeth_card *card;
3791
3792 QETH_DBF_TEXT(trace, 4, "qethopen");
3793
3794 card = (struct qeth_card *) dev->priv;
3795
3796 if (card->state != CARD_STATE_SOFTSETUP)
3797 return -ENODEV;
3798
3799 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3800 (card->options.layer2) &&
3801 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3802 QETH_DBF_TEXT(trace,4,"nomacadr");
3803 return -EPERM;
3804 }
3805 card->data.state = CH_STATE_UP;
3806 card->state = CARD_STATE_UP;
3807 card->dev->flags |= IFF_UP;
3808 netif_start_queue(dev);
3809
3810 if (!card->lan_online && netif_carrier_ok(dev))
3811 netif_carrier_off(dev);
3812 return 0;
3813 }
3814
3815 static int
3816 qeth_stop(struct net_device *dev)
3817 {
3818 struct qeth_card *card;
3819
3820 QETH_DBF_TEXT(trace, 4, "qethstop");
3821
3822 card = (struct qeth_card *) dev->priv;
3823
3824 netif_tx_disable(dev);
3825 card->dev->flags &= ~IFF_UP;
3826 if (card->state == CARD_STATE_UP)
3827 card->state = CARD_STATE_SOFTSETUP;
3828 return 0;
3829 }
3830
3831 static inline int
3832 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3833 {
3834 int cast_type = RTN_UNSPEC;
3835
3836 if (card->info.type == QETH_CARD_TYPE_OSN)
3837 return cast_type;
3838
3839 if (skb->dst && skb->dst->neighbour){
3840 cast_type = skb->dst->neighbour->type;
3841 if ((cast_type == RTN_BROADCAST) ||
3842 (cast_type == RTN_MULTICAST) ||
3843 (cast_type == RTN_ANYCAST))
3844 return cast_type;
3845 else
3846 return RTN_UNSPEC;
3847 }
3848 /* try something else */
3849 if (skb->protocol == ETH_P_IPV6)
3850 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3851 else if (skb->protocol == ETH_P_IP)
3852 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3853 /* ... */
3854 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3855 return RTN_BROADCAST;
3856 else {
3857 u16 hdr_mac;
3858
3859 hdr_mac = *((u16 *)skb->data);
3860 /* tr multicast? */
3861 switch (card->info.link_type) {
3862 case QETH_LINK_TYPE_HSTR:
3863 case QETH_LINK_TYPE_LANE_TR:
3864 if ((hdr_mac == QETH_TR_MAC_NC) ||
3865 (hdr_mac == QETH_TR_MAC_C))
3866 return RTN_MULTICAST;
3867 break;
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 tx_bytes = skb->len;
4423 #ifdef CONFIG_QETH_PERF_STATS
4424 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4425 unsigned short tso_size = skb_shinfo(skb)->gso_size;
4426 #endif
4427 int rc;
4428
4429 QETH_DBF_TEXT(trace, 6, "sendpkt");
4430
4431 if (!card->options.layer2) {
4432 ipv = qeth_get_ip_version(skb);
4433 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4434 if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4435 card->stats.tx_dropped++;
4436 dev_kfree_skb_irq(skb);
4437 return 0;
4438 }
4439 if(card->dev->type == ARPHRD_IEEE802_TR){
4440 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4441 } else {
4442 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4443 }
4444 }
4445 }
4446 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4447 (skb->protocol == htons(ETH_P_IPV6))) {
4448 dev_kfree_skb_any(skb);
4449 return 0;
4450 }
4451 cast_type = qeth_get_cast_type(card, skb);
4452 if ((cast_type == RTN_BROADCAST) &&
4453 (card->info.broadcast_capable == 0)){
4454 card->stats.tx_dropped++;
4455 card->stats.tx_errors++;
4456 dev_kfree_skb_any(skb);
4457 return NETDEV_TX_OK;
4458 }
4459 queue = card->qdio.out_qs
4460 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4461
4462 if (skb_is_gso(skb))
4463 large_send = card->options.large_send;
4464
4465 /*are we able to do TSO ? If so ,prepare and send it from here */
4466 if ((large_send == QETH_LARGE_SEND_TSO) &&
4467 (cast_type == RTN_UNSPEC)) {
4468 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4469 if (rc) {
4470 card->stats.tx_dropped++;
4471 card->stats.tx_errors++;
4472 dev_kfree_skb_any(skb);
4473 return NETDEV_TX_OK;
4474 }
4475 elements_needed++;
4476 } else {
4477 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4478 QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4479 return rc;
4480 }
4481 if (card->info.type != QETH_CARD_TYPE_OSN)
4482 qeth_fill_header(card, hdr, skb, ipv, cast_type);
4483 }
4484
4485 if (large_send == QETH_LARGE_SEND_EDDP) {
4486 ctx = qeth_eddp_create_context(card, skb, hdr);
4487 if (ctx == NULL) {
4488 PRINT_WARN("could not create eddp context\n");
4489 return -EINVAL;
4490 }
4491 } else {
4492 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4493 elements_needed);
4494 if (!elems)
4495 return -EINVAL;
4496 elements_needed += elems;
4497 }
4498
4499 if (card->info.type != QETH_CARD_TYPE_IQD)
4500 rc = qeth_do_send_packet(card, queue, skb, hdr,
4501 elements_needed, ctx);
4502 else
4503 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4504 elements_needed, ctx);
4505 if (!rc){
4506 card->stats.tx_packets++;
4507 card->stats.tx_bytes += tx_bytes;
4508 #ifdef CONFIG_QETH_PERF_STATS
4509 if (tso_size &&
4510 !(large_send == QETH_LARGE_SEND_NO)) {
4511 card->perf_stats.large_send_bytes += tx_bytes;
4512 card->perf_stats.large_send_cnt++;
4513 }
4514 if (nr_frags > 0){
4515 card->perf_stats.sg_skbs_sent++;
4516 /* nr_frags + skb->data */
4517 card->perf_stats.sg_frags_sent +=
4518 nr_frags + 1;
4519 }
4520 #endif /* CONFIG_QETH_PERF_STATS */
4521 }
4522 if (ctx != NULL) {
4523 /* drop creator's reference */
4524 qeth_eddp_put_context(ctx);
4525 /* free skb; it's not referenced by a buffer */
4526 if (rc == 0)
4527 dev_kfree_skb_any(skb);
4528
4529 }
4530 return rc;
4531 }
4532
4533 static int
4534 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4535 {
4536 struct qeth_card *card = (struct qeth_card *) dev->priv;
4537 int rc = 0;
4538
4539 switch(regnum){
4540 case MII_BMCR: /* Basic mode control register */
4541 rc = BMCR_FULLDPLX;
4542 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4543 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4544 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4545 rc |= BMCR_SPEED100;
4546 break;
4547 case MII_BMSR: /* Basic mode status register */
4548 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4549 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4550 BMSR_100BASE4;
4551 break;
4552 case MII_PHYSID1: /* PHYS ID 1 */
4553 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4554 dev->dev_addr[2];
4555 rc = (rc >> 5) & 0xFFFF;
4556 break;
4557 case MII_PHYSID2: /* PHYS ID 2 */
4558 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4559 break;
4560 case MII_ADVERTISE: /* Advertisement control reg */
4561 rc = ADVERTISE_ALL;
4562 break;
4563 case MII_LPA: /* Link partner ability reg */
4564 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4565 LPA_100BASE4 | LPA_LPACK;
4566 break;
4567 case MII_EXPANSION: /* Expansion register */
4568 break;
4569 case MII_DCOUNTER: /* disconnect counter */
4570 break;
4571 case MII_FCSCOUNTER: /* false carrier counter */
4572 break;
4573 case MII_NWAYTEST: /* N-way auto-neg test register */
4574 break;
4575 case MII_RERRCOUNTER: /* rx error counter */
4576 rc = card->stats.rx_errors;
4577 break;
4578 case MII_SREVISION: /* silicon revision */
4579 break;
4580 case MII_RESV1: /* reserved 1 */
4581 break;
4582 case MII_LBRERROR: /* loopback, rx, bypass error */
4583 break;
4584 case MII_PHYADDR: /* physical address */
4585 break;
4586 case MII_RESV2: /* reserved 2 */
4587 break;
4588 case MII_TPISTATUS: /* TPI status for 10mbps */
4589 break;
4590 case MII_NCONFIG: /* network interface config */
4591 break;
4592 default:
4593 break;
4594 }
4595 return rc;
4596 }
4597
4598
4599 static inline const char *
4600 qeth_arp_get_error_cause(int *rc)
4601 {
4602 switch (*rc) {
4603 case QETH_IPA_ARP_RC_FAILED:
4604 *rc = -EIO;
4605 return "operation failed";
4606 case QETH_IPA_ARP_RC_NOTSUPP:
4607 *rc = -EOPNOTSUPP;
4608 return "operation not supported";
4609 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4610 *rc = -EINVAL;
4611 return "argument out of range";
4612 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4613 *rc = -EOPNOTSUPP;
4614 return "query operation not supported";
4615 case QETH_IPA_ARP_RC_Q_NO_DATA:
4616 *rc = -ENOENT;
4617 return "no query data available";
4618 default:
4619 return "unknown error";
4620 }
4621 }
4622
4623 static int
4624 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4625 __u16, long);
4626
4627 static int
4628 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4629 {
4630 int tmp;
4631 int rc;
4632
4633 QETH_DBF_TEXT(trace,3,"arpstnoe");
4634
4635 /*
4636 * currently GuestLAN only supports the ARP assist function
4637 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4638 * thus we say EOPNOTSUPP for this ARP function
4639 */
4640 if (card->info.guestlan)
4641 return -EOPNOTSUPP;
4642 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4643 PRINT_WARN("ARP processing not supported "
4644 "on %s!\n", QETH_CARD_IFNAME(card));
4645 return -EOPNOTSUPP;
4646 }
4647 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4648 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4649 no_entries);
4650 if (rc) {
4651 tmp = rc;
4652 PRINT_WARN("Could not set number of ARP entries on %s: "
4653 "%s (0x%x/%d)\n",
4654 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4655 tmp, tmp);
4656 }
4657 return rc;
4658 }
4659
4660 static inline void
4661 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4662 struct qeth_arp_query_data *qdata,
4663 int entry_size, int uentry_size)
4664 {
4665 char *entry_ptr;
4666 char *uentry_ptr;
4667 int i;
4668
4669 entry_ptr = (char *)&qdata->data;
4670 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4671 for (i = 0; i < qdata->no_entries; ++i){
4672 /* strip off 32 bytes "media specific information" */
4673 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4674 entry_ptr += entry_size;
4675 uentry_ptr += uentry_size;
4676 }
4677 }
4678
4679 static int
4680 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4681 unsigned long data)
4682 {
4683 struct qeth_ipa_cmd *cmd;
4684 struct qeth_arp_query_data *qdata;
4685 struct qeth_arp_query_info *qinfo;
4686 int entry_size;
4687 int uentry_size;
4688 int i;
4689
4690 QETH_DBF_TEXT(trace,4,"arpquecb");
4691
4692 qinfo = (struct qeth_arp_query_info *) reply->param;
4693 cmd = (struct qeth_ipa_cmd *) data;
4694 if (cmd->hdr.return_code) {
4695 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4696 return 0;
4697 }
4698 if (cmd->data.setassparms.hdr.return_code) {
4699 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4700 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4701 return 0;
4702 }
4703 qdata = &cmd->data.setassparms.data.query_arp;
4704 switch(qdata->reply_bits){
4705 case 5:
4706 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4707 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4708 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4709 break;
4710 case 7:
4711 /* fall through to default */
4712 default:
4713 /* tr is the same as eth -> entry7 */
4714 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4715 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4716 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4717 break;
4718 }
4719 /* check if there is enough room in userspace */
4720 if ((qinfo->udata_len - qinfo->udata_offset) <
4721 qdata->no_entries * uentry_size){
4722 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4723 cmd->hdr.return_code = -ENOMEM;
4724 PRINT_WARN("query ARP user space buffer is too small for "
4725 "the returned number of ARP entries. "
4726 "Aborting query!\n");
4727 goto out_error;
4728 }
4729 QETH_DBF_TEXT_(trace, 4, "anore%i",
4730 cmd->data.setassparms.hdr.number_of_replies);
4731 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4732 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4733
4734 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4735 /* strip off "media specific information" */
4736 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4737 uentry_size);
4738 } else
4739 /*copy entries to user buffer*/
4740 memcpy(qinfo->udata + qinfo->udata_offset,
4741 (char *)&qdata->data, qdata->no_entries*uentry_size);
4742
4743 qinfo->no_entries += qdata->no_entries;
4744 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4745 /* check if all replies received ... */
4746 if (cmd->data.setassparms.hdr.seq_no <
4747 cmd->data.setassparms.hdr.number_of_replies)
4748 return 1;
4749 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4750 /* keep STRIP_ENTRIES flag so the user program can distinguish
4751 * stripped entries from normal ones */
4752 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4753 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4754 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4755 return 0;
4756 out_error:
4757 i = 0;
4758 memcpy(qinfo->udata, &i, 4);
4759 return 0;
4760 }
4761
4762 static int
4763 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4764 int len, int (*reply_cb)(struct qeth_card *,
4765 struct qeth_reply *,
4766 unsigned long),
4767 void *reply_param)
4768 {
4769 QETH_DBF_TEXT(trace,4,"sendarp");
4770
4771 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4772 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4773 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4774 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4775 reply_cb, reply_param);
4776 }
4777
4778 static int
4779 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4780 int len, int (*reply_cb)(struct qeth_card *,
4781 struct qeth_reply *,
4782 unsigned long),
4783 void *reply_param)
4784 {
4785 u16 s1, s2;
4786
4787 QETH_DBF_TEXT(trace,4,"sendsnmp");
4788
4789 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4790 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4791 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4792 /* adjust PDU length fields in IPA_PDU_HEADER */
4793 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4794 s2 = (u32) len;
4795 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4796 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4797 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4798 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4799 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4800 reply_cb, reply_param);
4801 }
4802
4803 static struct qeth_cmd_buffer *
4804 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4805 __u16, __u16, enum qeth_prot_versions);
4806 static int
4807 qeth_arp_query(struct qeth_card *card, char *udata)
4808 {
4809 struct qeth_cmd_buffer *iob;
4810 struct qeth_arp_query_info qinfo = {0, };
4811 int tmp;
4812 int rc;
4813
4814 QETH_DBF_TEXT(trace,3,"arpquery");
4815
4816 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4817 IPA_ARP_PROCESSING)) {
4818 PRINT_WARN("ARP processing not supported "
4819 "on %s!\n", QETH_CARD_IFNAME(card));
4820 return -EOPNOTSUPP;
4821 }
4822 /* get size of userspace buffer and mask_bits -> 6 bytes */
4823 if (copy_from_user(&qinfo, udata, 6))
4824 return -EFAULT;
4825 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4826 return -ENOMEM;
4827 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4828 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4829 IPA_CMD_ASS_ARP_QUERY_INFO,
4830 sizeof(int),QETH_PROT_IPV4);
4831
4832 rc = qeth_send_ipa_arp_cmd(card, iob,
4833 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4834 qeth_arp_query_cb, (void *)&qinfo);
4835 if (rc) {
4836 tmp = rc;
4837 PRINT_WARN("Error while querying ARP cache on %s: %s "
4838 "(0x%x/%d)\n",
4839 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4840 tmp, tmp);
4841 copy_to_user(udata, qinfo.udata, 4);
4842 } else {
4843 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4844 }
4845 kfree(qinfo.udata);
4846 return rc;
4847 }
4848
4849 /**
4850 * SNMP command callback
4851 */
4852 static int
4853 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4854 unsigned long sdata)
4855 {
4856 struct qeth_ipa_cmd *cmd;
4857 struct qeth_arp_query_info *qinfo;
4858 struct qeth_snmp_cmd *snmp;
4859 unsigned char *data;
4860 __u16 data_len;
4861
4862 QETH_DBF_TEXT(trace,3,"snpcmdcb");
4863
4864 cmd = (struct qeth_ipa_cmd *) sdata;
4865 data = (unsigned char *)((char *)cmd - reply->offset);
4866 qinfo = (struct qeth_arp_query_info *) reply->param;
4867 snmp = &cmd->data.setadapterparms.data.snmp;
4868
4869 if (cmd->hdr.return_code) {
4870 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4871 return 0;
4872 }
4873 if (cmd->data.setadapterparms.hdr.return_code) {
4874 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4875 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4876 return 0;
4877 }
4878 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4879 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4880 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4881 else
4882 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4883
4884 /* check if there is enough room in userspace */
4885 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4886 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4887 cmd->hdr.return_code = -ENOMEM;
4888 return 0;
4889 }
4890 QETH_DBF_TEXT_(trace, 4, "snore%i",
4891 cmd->data.setadapterparms.hdr.used_total);
4892 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4893 /*copy entries to user buffer*/
4894 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4895 memcpy(qinfo->udata + qinfo->udata_offset,
4896 (char *)snmp,
4897 data_len + offsetof(struct qeth_snmp_cmd,data));
4898 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4899 } else {
4900 memcpy(qinfo->udata + qinfo->udata_offset,
4901 (char *)&snmp->request, data_len);
4902 }
4903 qinfo->udata_offset += data_len;
4904 /* check if all replies received ... */
4905 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4906 cmd->data.setadapterparms.hdr.used_total);
4907 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4908 cmd->data.setadapterparms.hdr.seq_no);
4909 if (cmd->data.setadapterparms.hdr.seq_no <
4910 cmd->data.setadapterparms.hdr.used_total)
4911 return 1;
4912 return 0;
4913 }
4914
4915 static struct qeth_cmd_buffer *
4916 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4917 enum qeth_prot_versions );
4918
4919 static struct qeth_cmd_buffer *
4920 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4921 {
4922 struct qeth_cmd_buffer *iob;
4923 struct qeth_ipa_cmd *cmd;
4924
4925 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4926 QETH_PROT_IPV4);
4927 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4928 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4929 cmd->data.setadapterparms.hdr.command_code = command;
4930 cmd->data.setadapterparms.hdr.used_total = 1;
4931 cmd->data.setadapterparms.hdr.seq_no = 1;
4932
4933 return iob;
4934 }
4935
4936 /**
4937 * function to send SNMP commands to OSA-E card
4938 */
4939 static int
4940 qeth_snmp_command(struct qeth_card *card, char *udata)
4941 {
4942 struct qeth_cmd_buffer *iob;
4943 struct qeth_ipa_cmd *cmd;
4944 struct qeth_snmp_ureq *ureq;
4945 int req_len;
4946 struct qeth_arp_query_info qinfo = {0, };
4947 int rc = 0;
4948
4949 QETH_DBF_TEXT(trace,3,"snmpcmd");
4950
4951 if (card->info.guestlan)
4952 return -EOPNOTSUPP;
4953
4954 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4955 (!card->options.layer2) ) {
4956 PRINT_WARN("SNMP Query MIBS not supported "
4957 "on %s!\n", QETH_CARD_IFNAME(card));
4958 return -EOPNOTSUPP;
4959 }
4960 /* skip 4 bytes (data_len struct member) to get req_len */
4961 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4962 return -EFAULT;
4963 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4964 if (!ureq) {
4965 QETH_DBF_TEXT(trace, 2, "snmpnome");
4966 return -ENOMEM;
4967 }
4968 if (copy_from_user(ureq, udata,
4969 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4970 kfree(ureq);
4971 return -EFAULT;
4972 }
4973 qinfo.udata_len = ureq->hdr.data_len;
4974 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
4975 kfree(ureq);
4976 return -ENOMEM;
4977 }
4978 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4979
4980 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4981 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4982 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4983 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4984 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4985 qeth_snmp_command_cb, (void *)&qinfo);
4986 if (rc)
4987 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4988 QETH_CARD_IFNAME(card), rc);
4989 else
4990 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4991
4992 kfree(ureq);
4993 kfree(qinfo.udata);
4994 return rc;
4995 }
4996
4997 static int
4998 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4999 unsigned long);
5000
5001 static int
5002 qeth_default_setadapterparms_cb(struct qeth_card *card,
5003 struct qeth_reply *reply,
5004 unsigned long data);
5005 static int
5006 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5007 __u16, long,
5008 int (*reply_cb)
5009 (struct qeth_card *, struct qeth_reply *, unsigned long),
5010 void *reply_param);
5011
5012 static int
5013 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5014 {
5015 struct qeth_cmd_buffer *iob;
5016 char buf[16];
5017 int tmp;
5018 int rc;
5019
5020 QETH_DBF_TEXT(trace,3,"arpadent");
5021
5022 /*
5023 * currently GuestLAN only supports the ARP assist function
5024 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5025 * thus we say EOPNOTSUPP for this ARP function
5026 */
5027 if (card->info.guestlan)
5028 return -EOPNOTSUPP;
5029 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5030 PRINT_WARN("ARP processing not supported "
5031 "on %s!\n", QETH_CARD_IFNAME(card));
5032 return -EOPNOTSUPP;
5033 }
5034
5035 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5036 IPA_CMD_ASS_ARP_ADD_ENTRY,
5037 sizeof(struct qeth_arp_cache_entry),
5038 QETH_PROT_IPV4);
5039 rc = qeth_send_setassparms(card, iob,
5040 sizeof(struct qeth_arp_cache_entry),
5041 (unsigned long) entry,
5042 qeth_default_setassparms_cb, NULL);
5043 if (rc) {
5044 tmp = rc;
5045 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5046 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5047 "%s (0x%x/%d)\n",
5048 buf, QETH_CARD_IFNAME(card),
5049 qeth_arp_get_error_cause(&rc), tmp, tmp);
5050 }
5051 return rc;
5052 }
5053
5054 static int
5055 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5056 {
5057 struct qeth_cmd_buffer *iob;
5058 char buf[16] = {0, };
5059 int tmp;
5060 int rc;
5061
5062 QETH_DBF_TEXT(trace,3,"arprment");
5063
5064 /*
5065 * currently GuestLAN only supports the ARP assist function
5066 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5067 * thus we say EOPNOTSUPP for this ARP function
5068 */
5069 if (card->info.guestlan)
5070 return -EOPNOTSUPP;
5071 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5072 PRINT_WARN("ARP processing not supported "
5073 "on %s!\n", QETH_CARD_IFNAME(card));
5074 return -EOPNOTSUPP;
5075 }
5076 memcpy(buf, entry, 12);
5077 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5078 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5079 12,
5080 QETH_PROT_IPV4);
5081 rc = qeth_send_setassparms(card, iob,
5082 12, (unsigned long)buf,
5083 qeth_default_setassparms_cb, NULL);
5084 if (rc) {
5085 tmp = rc;
5086 memset(buf, 0, 16);
5087 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5088 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5089 "%s (0x%x/%d)\n",
5090 buf, QETH_CARD_IFNAME(card),
5091 qeth_arp_get_error_cause(&rc), tmp, tmp);
5092 }
5093 return rc;
5094 }
5095
5096 static int
5097 qeth_arp_flush_cache(struct qeth_card *card)
5098 {
5099 int rc;
5100 int tmp;
5101
5102 QETH_DBF_TEXT(trace,3,"arpflush");
5103
5104 /*
5105 * currently GuestLAN only supports the ARP assist function
5106 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5107 * thus we say EOPNOTSUPP for this ARP function
5108 */
5109 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5110 return -EOPNOTSUPP;
5111 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5112 PRINT_WARN("ARP processing not supported "
5113 "on %s!\n", QETH_CARD_IFNAME(card));
5114 return -EOPNOTSUPP;
5115 }
5116 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5117 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5118 if (rc){
5119 tmp = rc;
5120 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5121 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5122 tmp, tmp);
5123 }
5124 return rc;
5125 }
5126
5127 static int
5128 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5129 {
5130 struct qeth_card *card = (struct qeth_card *)dev->priv;
5131 struct qeth_arp_cache_entry arp_entry;
5132 struct mii_ioctl_data *mii_data;
5133 int rc = 0;
5134
5135 if (!card)
5136 return -ENODEV;
5137
5138 if ((card->state != CARD_STATE_UP) &&
5139 (card->state != CARD_STATE_SOFTSETUP))
5140 return -ENODEV;
5141
5142 if (card->info.type == QETH_CARD_TYPE_OSN)
5143 return -EPERM;
5144
5145 switch (cmd){
5146 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5147 if ( !capable(CAP_NET_ADMIN) ||
5148 (card->options.layer2) ) {
5149 rc = -EPERM;
5150 break;
5151 }
5152 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5153 break;
5154 case SIOC_QETH_ARP_QUERY_INFO:
5155 if ( !capable(CAP_NET_ADMIN) ||
5156 (card->options.layer2) ) {
5157 rc = -EPERM;
5158 break;
5159 }
5160 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5161 break;
5162 case SIOC_QETH_ARP_ADD_ENTRY:
5163 if ( !capable(CAP_NET_ADMIN) ||
5164 (card->options.layer2) ) {
5165 rc = -EPERM;
5166 break;
5167 }
5168 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5169 sizeof(struct qeth_arp_cache_entry)))
5170 rc = -EFAULT;
5171 else
5172 rc = qeth_arp_add_entry(card, &arp_entry);
5173 break;
5174 case SIOC_QETH_ARP_REMOVE_ENTRY:
5175 if ( !capable(CAP_NET_ADMIN) ||
5176 (card->options.layer2) ) {
5177 rc = -EPERM;
5178 break;
5179 }
5180 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5181 sizeof(struct qeth_arp_cache_entry)))
5182 rc = -EFAULT;
5183 else
5184 rc = qeth_arp_remove_entry(card, &arp_entry);
5185 break;
5186 case SIOC_QETH_ARP_FLUSH_CACHE:
5187 if ( !capable(CAP_NET_ADMIN) ||
5188 (card->options.layer2) ) {
5189 rc = -EPERM;
5190 break;
5191 }
5192 rc = qeth_arp_flush_cache(card);
5193 break;
5194 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5195 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5196 break;
5197 case SIOC_QETH_GET_CARD_TYPE:
5198 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5199 !card->info.guestlan)
5200 return 1;
5201 return 0;
5202 break;
5203 case SIOCGMIIPHY:
5204 mii_data = if_mii(rq);
5205 mii_data->phy_id = 0;
5206 break;
5207 case SIOCGMIIREG:
5208 mii_data = if_mii(rq);
5209 if (mii_data->phy_id != 0)
5210 rc = -EINVAL;
5211 else
5212 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5213 mii_data->reg_num);
5214 break;
5215 default:
5216 rc = -EOPNOTSUPP;
5217 }
5218 if (rc)
5219 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5220 return rc;
5221 }
5222
5223 static struct net_device_stats *
5224 qeth_get_stats(struct net_device *dev)
5225 {
5226 struct qeth_card *card;
5227
5228 card = (struct qeth_card *) (dev->priv);
5229
5230 QETH_DBF_TEXT(trace,5,"getstat");
5231
5232 return &card->stats;
5233 }
5234
5235 static int
5236 qeth_change_mtu(struct net_device *dev, int new_mtu)
5237 {
5238 struct qeth_card *card;
5239 char dbf_text[15];
5240
5241 card = (struct qeth_card *) (dev->priv);
5242
5243 QETH_DBF_TEXT(trace,4,"chgmtu");
5244 sprintf(dbf_text, "%8x", new_mtu);
5245 QETH_DBF_TEXT(trace,4,dbf_text);
5246
5247 if (new_mtu < 64)
5248 return -EINVAL;
5249 if (new_mtu > 65535)
5250 return -EINVAL;
5251 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5252 (!qeth_mtu_is_valid(card, new_mtu)))
5253 return -EINVAL;
5254 dev->mtu = new_mtu;
5255 return 0;
5256 }
5257
5258 #ifdef CONFIG_QETH_VLAN
5259 static void
5260 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5261 {
5262 struct qeth_card *card;
5263 unsigned long flags;
5264
5265 QETH_DBF_TEXT(trace,4,"vlanreg");
5266
5267 card = (struct qeth_card *) dev->priv;
5268 spin_lock_irqsave(&card->vlanlock, flags);
5269 card->vlangrp = grp;
5270 spin_unlock_irqrestore(&card->vlanlock, flags);
5271 }
5272
5273 static inline void
5274 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5275 unsigned short vid)
5276 {
5277 int i;
5278 struct sk_buff *skb;
5279 struct sk_buff_head tmp_list;
5280
5281 skb_queue_head_init(&tmp_list);
5282 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5283 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5284 while ((skb = skb_dequeue(&buf->skb_list))){
5285 if (vlan_tx_tag_present(skb) &&
5286 (vlan_tx_tag_get(skb) == vid)) {
5287 atomic_dec(&skb->users);
5288 dev_kfree_skb(skb);
5289 } else
5290 skb_queue_tail(&tmp_list, skb);
5291 }
5292 }
5293 while ((skb = skb_dequeue(&tmp_list)))
5294 skb_queue_tail(&buf->skb_list, skb);
5295 }
5296
5297 static void
5298 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5299 {
5300 int i, j;
5301
5302 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5303 for (i = 0; i < card->qdio.no_out_queues; ++i){
5304 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5305 qeth_free_vlan_buffer(card, &card->qdio.
5306 out_qs[i]->bufs[j], vid);
5307 }
5308 }
5309
5310 static void
5311 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5312 {
5313 struct in_device *in_dev;
5314 struct in_ifaddr *ifa;
5315 struct qeth_ipaddr *addr;
5316
5317 QETH_DBF_TEXT(trace, 4, "frvaddr4");
5318
5319 rcu_read_lock();
5320 in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5321 if (!in_dev)
5322 goto out;
5323 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5324 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5325 if (addr){
5326 addr->u.a4.addr = ifa->ifa_address;
5327 addr->u.a4.mask = ifa->ifa_mask;
5328 addr->type = QETH_IP_TYPE_NORMAL;
5329 if (!qeth_delete_ip(card, addr))
5330 kfree(addr);
5331 }
5332 }
5333 out:
5334 rcu_read_unlock();
5335 }
5336
5337 static void
5338 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5339 {
5340 #ifdef CONFIG_QETH_IPV6
5341 struct inet6_dev *in6_dev;
5342 struct inet6_ifaddr *ifa;
5343 struct qeth_ipaddr *addr;
5344
5345 QETH_DBF_TEXT(trace, 4, "frvaddr6");
5346
5347 in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5348 if (!in6_dev)
5349 return;
5350 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5351 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5352 if (addr){
5353 memcpy(&addr->u.a6.addr, &ifa->addr,
5354 sizeof(struct in6_addr));
5355 addr->u.a6.pfxlen = ifa->prefix_len;
5356 addr->type = QETH_IP_TYPE_NORMAL;
5357 if (!qeth_delete_ip(card, addr))
5358 kfree(addr);
5359 }
5360 }
5361 in6_dev_put(in6_dev);
5362 #endif /* CONFIG_QETH_IPV6 */
5363 }
5364
5365 static void
5366 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5367 {
5368 if (card->options.layer2 || !card->vlangrp)
5369 return;
5370 qeth_free_vlan_addresses4(card, vid);
5371 qeth_free_vlan_addresses6(card, vid);
5372 }
5373
5374 static int
5375 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5376 struct qeth_reply *reply,
5377 unsigned long data)
5378 {
5379 struct qeth_ipa_cmd *cmd;
5380
5381 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5382 cmd = (struct qeth_ipa_cmd *) data;
5383 if (cmd->hdr.return_code) {
5384 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5385 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5386 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5387 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5388 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5389 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5390 }
5391 return 0;
5392 }
5393
5394 static int
5395 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5396 enum qeth_ipa_cmds ipacmd)
5397 {
5398 struct qeth_ipa_cmd *cmd;
5399 struct qeth_cmd_buffer *iob;
5400
5401 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5402 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5403 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5404 cmd->data.setdelvlan.vlan_id = i;
5405 return qeth_send_ipa_cmd(card, iob,
5406 qeth_layer2_send_setdelvlan_cb, NULL);
5407 }
5408
5409 static void
5410 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5411 {
5412 unsigned short i;
5413
5414 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5415
5416 if (!card->vlangrp)
5417 return;
5418 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5419 if (card->vlangrp->vlan_devices[i] == NULL)
5420 continue;
5421 if (clear)
5422 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5423 else
5424 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5425 }
5426 }
5427
5428 /*add_vid is layer 2 used only ....*/
5429 static void
5430 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5431 {
5432 struct qeth_card *card;
5433
5434 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5435
5436 card = (struct qeth_card *) dev->priv;
5437 if (!card->options.layer2)
5438 return;
5439 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5440 }
5441
5442 /*... kill_vid used for both modes*/
5443 static void
5444 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5445 {
5446 struct qeth_card *card;
5447 unsigned long flags;
5448
5449 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5450
5451 card = (struct qeth_card *) dev->priv;
5452 /* free all skbs for the vlan device */
5453 qeth_free_vlan_skbs(card, vid);
5454 spin_lock_irqsave(&card->vlanlock, flags);
5455 /* unregister IP addresses of vlan device */
5456 qeth_free_vlan_addresses(card, vid);
5457 if (card->vlangrp)
5458 card->vlangrp->vlan_devices[vid] = NULL;
5459 spin_unlock_irqrestore(&card->vlanlock, flags);
5460 if (card->options.layer2)
5461 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5462 qeth_set_multicast_list(card->dev);
5463 }
5464 #endif
5465 /**
5466 * Examine hardware response to SET_PROMISC_MODE
5467 */
5468 static int
5469 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5470 struct qeth_reply *reply,
5471 unsigned long data)
5472 {
5473 struct qeth_ipa_cmd *cmd;
5474 struct qeth_ipacmd_setadpparms *setparms;
5475
5476 QETH_DBF_TEXT(trace,4,"prmadpcb");
5477
5478 cmd = (struct qeth_ipa_cmd *) data;
5479 setparms = &(cmd->data.setadapterparms);
5480
5481 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5482 if (cmd->hdr.return_code) {
5483 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5484 setparms->data.mode = SET_PROMISC_MODE_OFF;
5485 }
5486 card->info.promisc_mode = setparms->data.mode;
5487 return 0;
5488 }
5489 /*
5490 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5491 */
5492 static void
5493 qeth_setadp_promisc_mode(struct qeth_card *card)
5494 {
5495 enum qeth_ipa_promisc_modes mode;
5496 struct net_device *dev = card->dev;
5497 struct qeth_cmd_buffer *iob;
5498 struct qeth_ipa_cmd *cmd;
5499
5500 QETH_DBF_TEXT(trace, 4, "setprom");
5501
5502 if (((dev->flags & IFF_PROMISC) &&
5503 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5504 (!(dev->flags & IFF_PROMISC) &&
5505 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5506 return;
5507 mode = SET_PROMISC_MODE_OFF;
5508 if (dev->flags & IFF_PROMISC)
5509 mode = SET_PROMISC_MODE_ON;
5510 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5511
5512 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5513 sizeof(struct qeth_ipacmd_setadpparms));
5514 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5515 cmd->data.setadapterparms.data.mode = mode;
5516 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5517 }
5518
5519 /**
5520 * set multicast address on card
5521 */
5522 static void
5523 qeth_set_multicast_list(struct net_device *dev)
5524 {
5525 struct qeth_card *card = (struct qeth_card *) dev->priv;
5526
5527 if (card->info.type == QETH_CARD_TYPE_OSN)
5528 return ;
5529
5530 QETH_DBF_TEXT(trace, 3, "setmulti");
5531 qeth_delete_mc_addresses(card);
5532 if (card->options.layer2) {
5533 qeth_layer2_add_multicast(card);
5534 goto out;
5535 }
5536 qeth_add_multicast_ipv4(card);
5537 #ifdef CONFIG_QETH_IPV6
5538 qeth_add_multicast_ipv6(card);
5539 #endif
5540 out:
5541 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5542 schedule_work(&card->kernel_thread_starter);
5543 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5544 return;
5545 if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5546 schedule_work(&card->kernel_thread_starter);
5547 }
5548
5549 static int
5550 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5551 {
5552 return 0;
5553 }
5554
5555 static void
5556 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5557 {
5558 if (dev->type == ARPHRD_IEEE802_TR)
5559 ip_tr_mc_map(ipm, mac);
5560 else
5561 ip_eth_mc_map(ipm, mac);
5562 }
5563
5564 static struct qeth_ipaddr *
5565 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5566 {
5567 struct qeth_ipaddr *addr;
5568
5569 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5570 if (addr == NULL) {
5571 PRINT_WARN("Not enough memory to add address\n");
5572 return NULL;
5573 }
5574 addr->type = QETH_IP_TYPE_NORMAL;
5575 addr->proto = prot;
5576 return addr;
5577 }
5578
5579 int
5580 qeth_osn_assist(struct net_device *dev,
5581 void *data,
5582 int data_len)
5583 {
5584 struct qeth_cmd_buffer *iob;
5585 struct qeth_card *card;
5586 int rc;
5587
5588 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5589 if (!dev)
5590 return -ENODEV;
5591 card = (struct qeth_card *)dev->priv;
5592 if (!card)
5593 return -ENODEV;
5594 if ((card->state != CARD_STATE_UP) &&
5595 (card->state != CARD_STATE_SOFTSETUP))
5596 return -ENODEV;
5597 iob = qeth_wait_for_buffer(&card->write);
5598 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5599 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5600 return rc;
5601 }
5602
5603 static struct net_device *
5604 qeth_netdev_by_devno(unsigned char *read_dev_no)
5605 {
5606 struct qeth_card *card;
5607 struct net_device *ndev;
5608 unsigned char *readno;
5609 __u16 temp_dev_no, card_dev_no;
5610 char *endp;
5611 unsigned long flags;
5612
5613 ndev = NULL;
5614 memcpy(&temp_dev_no, read_dev_no, 2);
5615 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5616 list_for_each_entry(card, &qeth_card_list.list, list) {
5617 readno = CARD_RDEV_ID(card);
5618 readno += (strlen(readno) - 4);
5619 card_dev_no = simple_strtoul(readno, &endp, 16);
5620 if (card_dev_no == temp_dev_no) {
5621 ndev = card->dev;
5622 break;
5623 }
5624 }
5625 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5626 return ndev;
5627 }
5628
5629 int
5630 qeth_osn_register(unsigned char *read_dev_no,
5631 struct net_device **dev,
5632 int (*assist_cb)(struct net_device *, void *),
5633 int (*data_cb)(struct sk_buff *))
5634 {
5635 struct qeth_card * card;
5636
5637 QETH_DBF_TEXT(trace, 2, "osnreg");
5638 *dev = qeth_netdev_by_devno(read_dev_no);
5639 if (*dev == NULL)
5640 return -ENODEV;
5641 card = (struct qeth_card *)(*dev)->priv;
5642 if (!card)
5643 return -ENODEV;
5644 if ((assist_cb == NULL) || (data_cb == NULL))
5645 return -EINVAL;
5646 card->osn_info.assist_cb = assist_cb;
5647 card->osn_info.data_cb = data_cb;
5648 return 0;
5649 }
5650
5651 void
5652 qeth_osn_deregister(struct net_device * dev)
5653 {
5654 struct qeth_card *card;
5655
5656 QETH_DBF_TEXT(trace, 2, "osndereg");
5657 if (!dev)
5658 return;
5659 card = (struct qeth_card *)dev->priv;
5660 if (!card)
5661 return;
5662 card->osn_info.assist_cb = NULL;
5663 card->osn_info.data_cb = NULL;
5664 return;
5665 }
5666
5667 static void
5668 qeth_delete_mc_addresses(struct qeth_card *card)
5669 {
5670 struct qeth_ipaddr *iptodo;
5671 unsigned long flags;
5672
5673 QETH_DBF_TEXT(trace,4,"delmc");
5674 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5675 if (!iptodo) {
5676 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5677 return;
5678 }
5679 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5680 spin_lock_irqsave(&card->ip_lock, flags);
5681 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5682 kfree(iptodo);
5683 spin_unlock_irqrestore(&card->ip_lock, flags);
5684 }
5685
5686 static inline void
5687 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5688 {
5689 struct qeth_ipaddr *ipm;
5690 struct ip_mc_list *im4;
5691 char buf[MAX_ADDR_LEN];
5692
5693 QETH_DBF_TEXT(trace,4,"addmc");
5694 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5695 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5696 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5697 if (!ipm)
5698 continue;
5699 ipm->u.a4.addr = im4->multiaddr;
5700 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5701 ipm->is_multicast = 1;
5702 if (!qeth_add_ip(card,ipm))
5703 kfree(ipm);
5704 }
5705 }
5706
5707 static inline void
5708 qeth_add_vlan_mc(struct qeth_card *card)
5709 {
5710 #ifdef CONFIG_QETH_VLAN
5711 struct in_device *in_dev;
5712 struct vlan_group *vg;
5713 int i;
5714
5715 QETH_DBF_TEXT(trace,4,"addmcvl");
5716 if ( ((card->options.layer2 == 0) &&
5717 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5718 (card->vlangrp == NULL) )
5719 return ;
5720
5721 vg = card->vlangrp;
5722 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5723 if (vg->vlan_devices[i] == NULL ||
5724 !(vg->vlan_devices[i]->flags & IFF_UP))
5725 continue;
5726 in_dev = in_dev_get(vg->vlan_devices[i]);
5727 if (!in_dev)
5728 continue;
5729 read_lock(&in_dev->mc_list_lock);
5730 qeth_add_mc(card,in_dev);
5731 read_unlock(&in_dev->mc_list_lock);
5732 in_dev_put(in_dev);
5733 }
5734 #endif
5735 }
5736
5737 static void
5738 qeth_add_multicast_ipv4(struct qeth_card *card)
5739 {
5740 struct in_device *in4_dev;
5741
5742 QETH_DBF_TEXT(trace,4,"chkmcv4");
5743 in4_dev = in_dev_get(card->dev);
5744 if (in4_dev == NULL)
5745 return;
5746 read_lock(&in4_dev->mc_list_lock);
5747 qeth_add_mc(card, in4_dev);
5748 qeth_add_vlan_mc(card);
5749 read_unlock(&in4_dev->mc_list_lock);
5750 in_dev_put(in4_dev);
5751 }
5752
5753 static void
5754 qeth_layer2_add_multicast(struct qeth_card *card)
5755 {
5756 struct qeth_ipaddr *ipm;
5757 struct dev_mc_list *dm;
5758
5759 QETH_DBF_TEXT(trace,4,"L2addmc");
5760 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5761 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5762 if (!ipm)
5763 continue;
5764 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5765 ipm->is_multicast = 1;
5766 if (!qeth_add_ip(card, ipm))
5767 kfree(ipm);
5768 }
5769 }
5770
5771 #ifdef CONFIG_QETH_IPV6
5772 static inline void
5773 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5774 {
5775 struct qeth_ipaddr *ipm;
5776 struct ifmcaddr6 *im6;
5777 char buf[MAX_ADDR_LEN];
5778
5779 QETH_DBF_TEXT(trace,4,"addmc6");
5780 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5781 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5782 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5783 if (!ipm)
5784 continue;
5785 ipm->is_multicast = 1;
5786 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5787 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5788 sizeof(struct in6_addr));
5789 if (!qeth_add_ip(card,ipm))
5790 kfree(ipm);
5791 }
5792 }
5793
5794 static inline void
5795 qeth_add_vlan_mc6(struct qeth_card *card)
5796 {
5797 #ifdef CONFIG_QETH_VLAN
5798 struct inet6_dev *in_dev;
5799 struct vlan_group *vg;
5800 int i;
5801
5802 QETH_DBF_TEXT(trace,4,"admc6vl");
5803 if ( ((card->options.layer2 == 0) &&
5804 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5805 (card->vlangrp == NULL))
5806 return ;
5807
5808 vg = card->vlangrp;
5809 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5810 if (vg->vlan_devices[i] == NULL ||
5811 !(vg->vlan_devices[i]->flags & IFF_UP))
5812 continue;
5813 in_dev = in6_dev_get(vg->vlan_devices[i]);
5814 if (!in_dev)
5815 continue;
5816 read_lock(&in_dev->lock);
5817 qeth_add_mc6(card,in_dev);
5818 read_unlock(&in_dev->lock);
5819 in6_dev_put(in_dev);
5820 }
5821 #endif /* CONFIG_QETH_VLAN */
5822 }
5823
5824 static void
5825 qeth_add_multicast_ipv6(struct qeth_card *card)
5826 {
5827 struct inet6_dev *in6_dev;
5828
5829 QETH_DBF_TEXT(trace,4,"chkmcv6");
5830 if (!qeth_is_supported(card, IPA_IPV6))
5831 return ;
5832 in6_dev = in6_dev_get(card->dev);
5833 if (in6_dev == NULL)
5834 return;
5835 read_lock(&in6_dev->lock);
5836 qeth_add_mc6(card, in6_dev);
5837 qeth_add_vlan_mc6(card);
5838 read_unlock(&in6_dev->lock);
5839 in6_dev_put(in6_dev);
5840 }
5841 #endif /* CONFIG_QETH_IPV6 */
5842
5843 static int
5844 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5845 enum qeth_ipa_cmds ipacmd,
5846 int (*reply_cb) (struct qeth_card *,
5847 struct qeth_reply*,
5848 unsigned long))
5849 {
5850 struct qeth_ipa_cmd *cmd;
5851 struct qeth_cmd_buffer *iob;
5852
5853 QETH_DBF_TEXT(trace, 2, "L2sdmac");
5854 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5855 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5856 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5857 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5858 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5859 }
5860
5861 static int
5862 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5863 struct qeth_reply *reply,
5864 unsigned long data)
5865 {
5866 struct qeth_ipa_cmd *cmd;
5867 __u8 *mac;
5868
5869 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5870 cmd = (struct qeth_ipa_cmd *) data;
5871 mac = &cmd->data.setdelmac.mac[0];
5872 /* MAC already registered, needed in couple/uncouple case */
5873 if (cmd->hdr.return_code == 0x2005) {
5874 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5875 "already existing on %s \n",
5876 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5877 QETH_CARD_IFNAME(card));
5878 cmd->hdr.return_code = 0;
5879 }
5880 if (cmd->hdr.return_code)
5881 PRINT_ERR("Could not set group MAC " \
5882 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5883 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5884 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5885 return 0;
5886 }
5887
5888 static int
5889 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5890 {
5891 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5892 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5893 qeth_layer2_send_setgroupmac_cb);
5894 }
5895
5896 static int
5897 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5898 struct qeth_reply *reply,
5899 unsigned long data)
5900 {
5901 struct qeth_ipa_cmd *cmd;
5902 __u8 *mac;
5903
5904 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5905 cmd = (struct qeth_ipa_cmd *) data;
5906 mac = &cmd->data.setdelmac.mac[0];
5907 if (cmd->hdr.return_code)
5908 PRINT_ERR("Could not delete group MAC " \
5909 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5910 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5911 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5912 return 0;
5913 }
5914
5915 static int
5916 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5917 {
5918 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5919 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5920 qeth_layer2_send_delgroupmac_cb);
5921 }
5922
5923 static int
5924 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5925 struct qeth_reply *reply,
5926 unsigned long data)
5927 {
5928 struct qeth_ipa_cmd *cmd;
5929
5930 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5931 cmd = (struct qeth_ipa_cmd *) data;
5932 if (cmd->hdr.return_code) {
5933 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5934 PRINT_WARN("Error in registering MAC address on " \
5935 "device %s: x%x\n", CARD_BUS_ID(card),
5936 cmd->hdr.return_code);
5937 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5938 cmd->hdr.return_code = -EIO;
5939 } else {
5940 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5941 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5942 OSA_ADDR_LEN);
5943 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5944 "successfully registered on device %s\n",
5945 card->dev->dev_addr[0], card->dev->dev_addr[1],
5946 card->dev->dev_addr[2], card->dev->dev_addr[3],
5947 card->dev->dev_addr[4], card->dev->dev_addr[5],
5948 card->dev->name);
5949 }
5950 return 0;
5951 }
5952
5953 static int
5954 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5955 {
5956 QETH_DBF_TEXT(trace, 2, "L2Setmac");
5957 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5958 qeth_layer2_send_setmac_cb);
5959 }
5960
5961 static int
5962 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5963 struct qeth_reply *reply,
5964 unsigned long data)
5965 {
5966 struct qeth_ipa_cmd *cmd;
5967
5968 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5969 cmd = (struct qeth_ipa_cmd *) data;
5970 if (cmd->hdr.return_code) {
5971 PRINT_WARN("Error in deregistering MAC address on " \
5972 "device %s: x%x\n", CARD_BUS_ID(card),
5973 cmd->hdr.return_code);
5974 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5975 cmd->hdr.return_code = -EIO;
5976 return 0;
5977 }
5978 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5979
5980 return 0;
5981 }
5982 static int
5983 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5984 {
5985 QETH_DBF_TEXT(trace, 2, "L2Delmac");
5986 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
5987 return 0;
5988 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5989 qeth_layer2_send_delmac_cb);
5990 }
5991
5992 static int
5993 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5994 {
5995 struct sockaddr *addr = p;
5996 struct qeth_card *card;
5997 int rc = 0;
5998
5999 QETH_DBF_TEXT(trace, 3, "setmac");
6000
6001 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6002 QETH_DBF_TEXT(trace, 3, "setmcINV");
6003 return -EOPNOTSUPP;
6004 }
6005 card = (struct qeth_card *) dev->priv;
6006
6007 if (!card->options.layer2) {
6008 PRINT_WARN("Setting MAC address on %s is not supported "
6009 "in Layer 3 mode.\n", dev->name);
6010 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6011 return -EOPNOTSUPP;
6012 }
6013 if (card->info.type == QETH_CARD_TYPE_OSN) {
6014 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6015 dev->name);
6016 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6017 return -EOPNOTSUPP;
6018 }
6019 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6020 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6021 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6022 if (!rc)
6023 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6024 return rc;
6025 }
6026
6027 static void
6028 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6029 __u8 command, enum qeth_prot_versions prot)
6030 {
6031 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6032 cmd->hdr.command = command;
6033 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6034 cmd->hdr.seqno = card->seqno.ipa;
6035 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6036 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6037 if (card->options.layer2)
6038 cmd->hdr.prim_version_no = 2;
6039 else
6040 cmd->hdr.prim_version_no = 1;
6041 cmd->hdr.param_count = 1;
6042 cmd->hdr.prot_version = prot;
6043 cmd->hdr.ipa_supported = 0;
6044 cmd->hdr.ipa_enabled = 0;
6045 }
6046
6047 static struct qeth_cmd_buffer *
6048 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6049 enum qeth_prot_versions prot)
6050 {
6051 struct qeth_cmd_buffer *iob;
6052 struct qeth_ipa_cmd *cmd;
6053
6054 iob = qeth_wait_for_buffer(&card->write);
6055 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6056 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6057
6058 return iob;
6059 }
6060
6061 static int
6062 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6063 {
6064 int rc;
6065 struct qeth_cmd_buffer *iob;
6066 struct qeth_ipa_cmd *cmd;
6067
6068 QETH_DBF_TEXT(trace,4,"setdelmc");
6069
6070 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6071 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6072 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6073 if (addr->proto == QETH_PROT_IPV6)
6074 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6075 sizeof(struct in6_addr));
6076 else
6077 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6078
6079 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6080
6081 return rc;
6082 }
6083 static inline void
6084 qeth_fill_netmask(u8 *netmask, unsigned int len)
6085 {
6086 int i,j;
6087 for (i=0;i<16;i++) {
6088 j=(len)-(i*8);
6089 if (j >= 8)
6090 netmask[i] = 0xff;
6091 else if (j > 0)
6092 netmask[i] = (u8)(0xFF00>>j);
6093 else
6094 netmask[i] = 0;
6095 }
6096 }
6097
6098 static int
6099 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6100 int ipacmd, unsigned int flags)
6101 {
6102 int rc;
6103 struct qeth_cmd_buffer *iob;
6104 struct qeth_ipa_cmd *cmd;
6105 __u8 netmask[16];
6106
6107 QETH_DBF_TEXT(trace,4,"setdelip");
6108 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6109
6110 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6111 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6112 if (addr->proto == QETH_PROT_IPV6) {
6113 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6114 sizeof(struct in6_addr));
6115 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6116 memcpy(cmd->data.setdelip6.mask, netmask,
6117 sizeof(struct in6_addr));
6118 cmd->data.setdelip6.flags = flags;
6119 } else {
6120 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6121 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6122 cmd->data.setdelip4.flags = flags;
6123 }
6124
6125 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6126
6127 return rc;
6128 }
6129
6130 static int
6131 qeth_layer2_register_addr_entry(struct qeth_card *card,
6132 struct qeth_ipaddr *addr)
6133 {
6134 if (!addr->is_multicast)
6135 return 0;
6136 QETH_DBF_TEXT(trace, 2, "setgmac");
6137 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6138 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6139 }
6140
6141 static int
6142 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6143 struct qeth_ipaddr *addr)
6144 {
6145 if (!addr->is_multicast)
6146 return 0;
6147 QETH_DBF_TEXT(trace, 2, "delgmac");
6148 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6149 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6150 }
6151
6152 static int
6153 qeth_layer3_register_addr_entry(struct qeth_card *card,
6154 struct qeth_ipaddr *addr)
6155 {
6156 char buf[50];
6157 int rc;
6158 int cnt = 3;
6159
6160 if (addr->proto == QETH_PROT_IPV4) {
6161 QETH_DBF_TEXT(trace, 2,"setaddr4");
6162 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6163 } else if (addr->proto == QETH_PROT_IPV6) {
6164 QETH_DBF_TEXT(trace, 2, "setaddr6");
6165 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6166 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6167 } else {
6168 QETH_DBF_TEXT(trace, 2, "setaddr?");
6169 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6170 }
6171 do {
6172 if (addr->is_multicast)
6173 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6174 else
6175 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6176 addr->set_flags);
6177 if (rc)
6178 QETH_DBF_TEXT(trace, 2, "failed");
6179 } while ((--cnt > 0) && rc);
6180 if (rc){
6181 QETH_DBF_TEXT(trace, 2, "FAILED");
6182 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6183 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6184 buf, rc, rc);
6185 }
6186 return rc;
6187 }
6188
6189 static int
6190 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6191 struct qeth_ipaddr *addr)
6192 {
6193 //char buf[50];
6194 int rc;
6195
6196 if (addr->proto == QETH_PROT_IPV4) {
6197 QETH_DBF_TEXT(trace, 2,"deladdr4");
6198 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6199 } else if (addr->proto == QETH_PROT_IPV6) {
6200 QETH_DBF_TEXT(trace, 2, "deladdr6");
6201 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6202 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6203 } else {
6204 QETH_DBF_TEXT(trace, 2, "deladdr?");
6205 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6206 }
6207 if (addr->is_multicast)
6208 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6209 else
6210 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6211 addr->del_flags);
6212 if (rc) {
6213 QETH_DBF_TEXT(trace, 2, "failed");
6214 /* TODO: re-activate this warning as soon as we have a
6215 * clean mirco code
6216 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6217 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6218 buf, rc);
6219 */
6220 }
6221 return rc;
6222 }
6223
6224 static int
6225 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6226 {
6227 if (card->options.layer2)
6228 return qeth_layer2_register_addr_entry(card, addr);
6229
6230 return qeth_layer3_register_addr_entry(card, addr);
6231 }
6232
6233 static int
6234 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6235 {
6236 if (card->options.layer2)
6237 return qeth_layer2_deregister_addr_entry(card, addr);
6238
6239 return qeth_layer3_deregister_addr_entry(card, addr);
6240 }
6241
6242 static u32
6243 qeth_ethtool_get_tx_csum(struct net_device *dev)
6244 {
6245 /* We may need to say that we support tx csum offload if
6246 * we do EDDP or TSO. There are discussions going on to
6247 * enforce rules in the stack and in ethtool that make
6248 * SG and TSO depend on HW_CSUM. At the moment there are
6249 * no such rules....
6250 * If we say yes here, we have to checksum outbound packets
6251 * any time. */
6252 return 0;
6253 }
6254
6255 static int
6256 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6257 {
6258 return -EINVAL;
6259 }
6260
6261 static u32
6262 qeth_ethtool_get_rx_csum(struct net_device *dev)
6263 {
6264 struct qeth_card *card = (struct qeth_card *)dev->priv;
6265
6266 return (card->options.checksum_type == HW_CHECKSUMMING);
6267 }
6268
6269 static int
6270 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6271 {
6272 struct qeth_card *card = (struct qeth_card *)dev->priv;
6273
6274 if ((card->state != CARD_STATE_DOWN) &&
6275 (card->state != CARD_STATE_RECOVER))
6276 return -EPERM;
6277 if (data)
6278 card->options.checksum_type = HW_CHECKSUMMING;
6279 else
6280 card->options.checksum_type = SW_CHECKSUMMING;
6281 return 0;
6282 }
6283
6284 static u32
6285 qeth_ethtool_get_sg(struct net_device *dev)
6286 {
6287 struct qeth_card *card = (struct qeth_card *)dev->priv;
6288
6289 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6290 (dev->features & NETIF_F_SG));
6291 }
6292
6293 static int
6294 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6295 {
6296 struct qeth_card *card = (struct qeth_card *)dev->priv;
6297
6298 if (data) {
6299 if (card->options.large_send != QETH_LARGE_SEND_NO)
6300 dev->features |= NETIF_F_SG;
6301 else {
6302 dev->features &= ~NETIF_F_SG;
6303 return -EINVAL;
6304 }
6305 } else
6306 dev->features &= ~NETIF_F_SG;
6307 return 0;
6308 }
6309
6310 static u32
6311 qeth_ethtool_get_tso(struct net_device *dev)
6312 {
6313 struct qeth_card *card = (struct qeth_card *)dev->priv;
6314
6315 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6316 (dev->features & NETIF_F_TSO));
6317 }
6318
6319 static int
6320 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6321 {
6322 struct qeth_card *card = (struct qeth_card *)dev->priv;
6323
6324 if (data) {
6325 if (card->options.large_send != QETH_LARGE_SEND_NO)
6326 dev->features |= NETIF_F_TSO;
6327 else {
6328 dev->features &= ~NETIF_F_TSO;
6329 return -EINVAL;
6330 }
6331 } else
6332 dev->features &= ~NETIF_F_TSO;
6333 return 0;
6334 }
6335
6336 static struct ethtool_ops qeth_ethtool_ops = {
6337 .get_tx_csum = qeth_ethtool_get_tx_csum,
6338 .set_tx_csum = qeth_ethtool_set_tx_csum,
6339 .get_rx_csum = qeth_ethtool_get_rx_csum,
6340 .set_rx_csum = qeth_ethtool_set_rx_csum,
6341 .get_sg = qeth_ethtool_get_sg,
6342 .set_sg = qeth_ethtool_set_sg,
6343 .get_tso = qeth_ethtool_get_tso,
6344 .set_tso = qeth_ethtool_set_tso,
6345 };
6346
6347 static int
6348 qeth_netdev_init(struct net_device *dev)
6349 {
6350 struct qeth_card *card;
6351
6352 card = (struct qeth_card *) dev->priv;
6353
6354 QETH_DBF_TEXT(trace,3,"initdev");
6355
6356 dev->tx_timeout = &qeth_tx_timeout;
6357 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6358 dev->open = qeth_open;
6359 dev->stop = qeth_stop;
6360 dev->hard_start_xmit = qeth_hard_start_xmit;
6361 dev->do_ioctl = qeth_do_ioctl;
6362 dev->get_stats = qeth_get_stats;
6363 dev->change_mtu = qeth_change_mtu;
6364 dev->neigh_setup = qeth_neigh_setup;
6365 dev->set_multicast_list = qeth_set_multicast_list;
6366 #ifdef CONFIG_QETH_VLAN
6367 dev->vlan_rx_register = qeth_vlan_rx_register;
6368 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6369 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6370 #endif
6371 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6372 dev->rebuild_header = NULL;
6373 dev->hard_header = NULL;
6374 dev->header_cache_update = NULL;
6375 dev->hard_header_cache = NULL;
6376 }
6377 #ifdef CONFIG_QETH_IPV6
6378 /*IPv6 address autoconfiguration stuff*/
6379 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6380 card->dev->dev_id = card->info.unique_id & 0xffff;
6381 #endif
6382 if (card->options.fake_ll &&
6383 (qeth_get_netdev_flags(card) & IFF_NOARP))
6384 dev->hard_header = qeth_fake_header;
6385 dev->hard_header_parse = NULL;
6386 dev->set_mac_address = qeth_layer2_set_mac_address;
6387 dev->flags |= qeth_get_netdev_flags(card);
6388 if ((card->options.fake_broadcast) ||
6389 (card->info.broadcast_capable))
6390 dev->flags |= IFF_BROADCAST;
6391 dev->hard_header_len =
6392 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6393 dev->addr_len = OSA_ADDR_LEN;
6394 dev->mtu = card->info.initial_mtu;
6395 if (card->info.type != QETH_CARD_TYPE_OSN)
6396 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6397 SET_MODULE_OWNER(dev);
6398 return 0;
6399 }
6400
6401 static void
6402 qeth_init_func_level(struct qeth_card *card)
6403 {
6404 if (card->ipato.enabled) {
6405 if (card->info.type == QETH_CARD_TYPE_IQD)
6406 card->info.func_level =
6407 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6408 else
6409 card->info.func_level =
6410 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6411 } else {
6412 if (card->info.type == QETH_CARD_TYPE_IQD)
6413 /*FIXME:why do we have same values for dis and ena for osae??? */
6414 card->info.func_level =
6415 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6416 else
6417 card->info.func_level =
6418 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6419 }
6420 }
6421
6422 /**
6423 * hardsetup card, initialize MPC and QDIO stuff
6424 */
6425 static int
6426 qeth_hardsetup_card(struct qeth_card *card)
6427 {
6428 int retries = 3;
6429 int rc;
6430
6431 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6432
6433 retry:
6434 if (retries < 3){
6435 PRINT_WARN("Retrying to do IDX activates.\n");
6436 ccw_device_set_offline(CARD_DDEV(card));
6437 ccw_device_set_offline(CARD_WDEV(card));
6438 ccw_device_set_offline(CARD_RDEV(card));
6439 ccw_device_set_online(CARD_RDEV(card));
6440 ccw_device_set_online(CARD_WDEV(card));
6441 ccw_device_set_online(CARD_DDEV(card));
6442 }
6443 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6444 if (rc == -ERESTARTSYS) {
6445 QETH_DBF_TEXT(setup, 2, "break1");
6446 return rc;
6447 } else if (rc) {
6448 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6449 if (--retries < 0)
6450 goto out;
6451 else
6452 goto retry;
6453 }
6454 if ((rc = qeth_get_unitaddr(card))){
6455 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6456 return rc;
6457 }
6458 qeth_init_tokens(card);
6459 qeth_init_func_level(card);
6460 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6461 if (rc == -ERESTARTSYS) {
6462 QETH_DBF_TEXT(setup, 2, "break2");
6463 return rc;
6464 } else if (rc) {
6465 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6466 if (--retries < 0)
6467 goto out;
6468 else
6469 goto retry;
6470 }
6471 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6472 if (rc == -ERESTARTSYS) {
6473 QETH_DBF_TEXT(setup, 2, "break3");
6474 return rc;
6475 } else if (rc) {
6476 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6477 if (--retries < 0)
6478 goto out;
6479 else
6480 goto retry;
6481 }
6482 if ((rc = qeth_mpc_initialize(card))){
6483 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6484 goto out;
6485 }
6486 /*network device will be recovered*/
6487 if (card->dev) {
6488 card->dev->hard_header = card->orig_hard_header;
6489 if (card->options.fake_ll &&
6490 (qeth_get_netdev_flags(card) & IFF_NOARP))
6491 card->dev->hard_header = qeth_fake_header;
6492 return 0;
6493 }
6494 /* at first set_online allocate netdev */
6495 card->dev = qeth_get_netdevice(card->info.type,
6496 card->info.link_type);
6497 if (!card->dev){
6498 qeth_qdio_clear_card(card, card->info.type !=
6499 QETH_CARD_TYPE_IQD);
6500 rc = -ENODEV;
6501 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6502 goto out;
6503 }
6504 card->dev->priv = card;
6505 card->orig_hard_header = card->dev->hard_header;
6506 card->dev->type = qeth_get_arphdr_type(card->info.type,
6507 card->info.link_type);
6508 card->dev->init = qeth_netdev_init;
6509 return 0;
6510 out:
6511 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6512 return rc;
6513 }
6514
6515 static int
6516 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6517 unsigned long data)
6518 {
6519 struct qeth_ipa_cmd *cmd;
6520
6521 QETH_DBF_TEXT(trace,4,"defadpcb");
6522
6523 cmd = (struct qeth_ipa_cmd *) data;
6524 if (cmd->hdr.return_code == 0){
6525 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6526 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6527 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6528 #ifdef CONFIG_QETH_IPV6
6529 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6530 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6531 #endif
6532 }
6533 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6534 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6535 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6536 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6537 }
6538 return 0;
6539 }
6540
6541 static int
6542 qeth_default_setadapterparms_cb(struct qeth_card *card,
6543 struct qeth_reply *reply,
6544 unsigned long data)
6545 {
6546 struct qeth_ipa_cmd *cmd;
6547
6548 QETH_DBF_TEXT(trace,4,"defadpcb");
6549
6550 cmd = (struct qeth_ipa_cmd *) data;
6551 if (cmd->hdr.return_code == 0)
6552 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6553 return 0;
6554 }
6555
6556
6557
6558 static int
6559 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6560 unsigned long data)
6561 {
6562 struct qeth_ipa_cmd *cmd;
6563
6564 QETH_DBF_TEXT(trace,3,"quyadpcb");
6565
6566 cmd = (struct qeth_ipa_cmd *) data;
6567 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6568 card->info.link_type =
6569 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6570 card->options.adp.supported_funcs =
6571 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6572 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6573 }
6574
6575 static int
6576 qeth_query_setadapterparms(struct qeth_card *card)
6577 {
6578 int rc;
6579 struct qeth_cmd_buffer *iob;
6580
6581 QETH_DBF_TEXT(trace,3,"queryadp");
6582 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6583 sizeof(struct qeth_ipacmd_setadpparms));
6584 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6585 return rc;
6586 }
6587
6588 static int
6589 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6590 struct qeth_reply *reply,
6591 unsigned long data)
6592 {
6593 struct qeth_ipa_cmd *cmd;
6594
6595 QETH_DBF_TEXT(trace,4,"chgmaccb");
6596
6597 cmd = (struct qeth_ipa_cmd *) data;
6598 if (!card->options.layer2 || card->info.guestlan ||
6599 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6600 memcpy(card->dev->dev_addr,
6601 &cmd->data.setadapterparms.data.change_addr.addr,
6602 OSA_ADDR_LEN);
6603 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6604 }
6605 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6606 return 0;
6607 }
6608
6609 static int
6610 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6611 {
6612 int rc;
6613 struct qeth_cmd_buffer *iob;
6614 struct qeth_ipa_cmd *cmd;
6615
6616 QETH_DBF_TEXT(trace,4,"chgmac");
6617
6618 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6619 sizeof(struct qeth_ipacmd_setadpparms));
6620 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6621 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6622 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6623 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6624 card->dev->dev_addr, OSA_ADDR_LEN);
6625 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6626 NULL);
6627 return rc;
6628 }
6629
6630 static int
6631 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6632 {
6633 int rc;
6634 struct qeth_cmd_buffer *iob;
6635 struct qeth_ipa_cmd *cmd;
6636
6637 QETH_DBF_TEXT(trace,4,"adpmode");
6638
6639 iob = qeth_get_adapter_cmd(card, command,
6640 sizeof(struct qeth_ipacmd_setadpparms));
6641 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6642 cmd->data.setadapterparms.data.mode = mode;
6643 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6644 NULL);
6645 return rc;
6646 }
6647
6648 static inline int
6649 qeth_setadapter_hstr(struct qeth_card *card)
6650 {
6651 int rc;
6652
6653 QETH_DBF_TEXT(trace,4,"adphstr");
6654
6655 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6656 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6657 card->options.broadcast_mode);
6658 if (rc)
6659 PRINT_WARN("couldn't set broadcast mode on "
6660 "device %s: x%x\n",
6661 CARD_BUS_ID(card), rc);
6662 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6663 card->options.macaddr_mode);
6664 if (rc)
6665 PRINT_WARN("couldn't set macaddr mode on "
6666 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6667 return rc;
6668 }
6669 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6670 PRINT_WARN("set adapter parameters not available "
6671 "to set broadcast mode, using ALLRINGS "
6672 "on device %s:\n", CARD_BUS_ID(card));
6673 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6674 PRINT_WARN("set adapter parameters not available "
6675 "to set macaddr mode, using NONCANONICAL "
6676 "on device %s:\n", CARD_BUS_ID(card));
6677 return 0;
6678 }
6679
6680 static int
6681 qeth_setadapter_parms(struct qeth_card *card)
6682 {
6683 int rc;
6684
6685 QETH_DBF_TEXT(setup, 2, "setadprm");
6686
6687 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6688 PRINT_WARN("set adapter parameters not supported "
6689 "on device %s.\n",
6690 CARD_BUS_ID(card));
6691 QETH_DBF_TEXT(setup, 2, " notsupp");
6692 return 0;
6693 }
6694 rc = qeth_query_setadapterparms(card);
6695 if (rc) {
6696 PRINT_WARN("couldn't set adapter parameters on device %s: "
6697 "x%x\n", CARD_BUS_ID(card), rc);
6698 return rc;
6699 }
6700 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6701 rc = qeth_setadpparms_change_macaddr(card);
6702 if (rc)
6703 PRINT_WARN("couldn't get MAC address on "
6704 "device %s: x%x\n",
6705 CARD_BUS_ID(card), rc);
6706 }
6707
6708 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6709 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6710 rc = qeth_setadapter_hstr(card);
6711
6712 return rc;
6713 }
6714
6715 static int
6716 qeth_layer2_initialize(struct qeth_card *card)
6717 {
6718 int rc = 0;
6719
6720
6721 QETH_DBF_TEXT(setup, 2, "doL2init");
6722 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6723
6724 rc = qeth_query_setadapterparms(card);
6725 if (rc) {
6726 PRINT_WARN("could not query adapter parameters on device %s: "
6727 "x%x\n", CARD_BUS_ID(card), rc);
6728 }
6729
6730 rc = qeth_setadpparms_change_macaddr(card);
6731 if (rc) {
6732 PRINT_WARN("couldn't get MAC address on "
6733 "device %s: x%x\n",
6734 CARD_BUS_ID(card), rc);
6735 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6736 return rc;
6737 }
6738 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6739
6740 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6741 if (rc)
6742 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6743 return 0;
6744 }
6745
6746
6747 static int
6748 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6749 enum qeth_prot_versions prot)
6750 {
6751 int rc;
6752 struct qeth_cmd_buffer *iob;
6753
6754 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6755 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6756
6757 return rc;
6758 }
6759
6760 static int
6761 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6762 {
6763 int rc;
6764
6765 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6766
6767 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6768 return rc;
6769 }
6770
6771 static int
6772 qeth_send_stoplan(struct qeth_card *card)
6773 {
6774 int rc = 0;
6775
6776 /*
6777 * TODO: according to the IPA format document page 14,
6778 * TCP/IP (we!) never issue a STOPLAN
6779 * is this right ?!?
6780 */
6781 QETH_DBF_TEXT(trace, 2, "stoplan");
6782
6783 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6784 return rc;
6785 }
6786
6787 static int
6788 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6789 unsigned long data)
6790 {
6791 struct qeth_ipa_cmd *cmd;
6792
6793 QETH_DBF_TEXT(setup, 2, "qipasscb");
6794
6795 cmd = (struct qeth_ipa_cmd *) data;
6796 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6797 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6798 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6799 /* Disable IPV6 support hard coded for Hipersockets */
6800 if(card->info.type == QETH_CARD_TYPE_IQD)
6801 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6802 } else {
6803 #ifdef CONFIG_QETH_IPV6
6804 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6805 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6806 #endif
6807 }
6808 QETH_DBF_TEXT(setup, 2, "suppenbl");
6809 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6810 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6811 return 0;
6812 }
6813
6814 static int
6815 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6816 {
6817 int rc;
6818 struct qeth_cmd_buffer *iob;
6819
6820 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6821 if (card->options.layer2) {
6822 QETH_DBF_TEXT(setup, 2, "noprmly2");
6823 return -EPERM;
6824 }
6825
6826 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6827 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6828 return rc;
6829 }
6830
6831 static struct qeth_cmd_buffer *
6832 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6833 __u16 cmd_code, __u16 len,
6834 enum qeth_prot_versions prot)
6835 {
6836 struct qeth_cmd_buffer *iob;
6837 struct qeth_ipa_cmd *cmd;
6838
6839 QETH_DBF_TEXT(trace,4,"getasscm");
6840 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6841
6842 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6843 cmd->data.setassparms.hdr.assist_no = ipa_func;
6844 cmd->data.setassparms.hdr.length = 8 + len;
6845 cmd->data.setassparms.hdr.command_code = cmd_code;
6846 cmd->data.setassparms.hdr.return_code = 0;
6847 cmd->data.setassparms.hdr.seq_no = 0;
6848
6849 return iob;
6850 }
6851
6852 static int
6853 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6854 __u16 len, long data,
6855 int (*reply_cb)
6856 (struct qeth_card *,struct qeth_reply *,unsigned long),
6857 void *reply_param)
6858 {
6859 int rc;
6860 struct qeth_ipa_cmd *cmd;
6861
6862 QETH_DBF_TEXT(trace,4,"sendassp");
6863
6864 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6865 if (len <= sizeof(__u32))
6866 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6867 else /* (len > sizeof(__u32)) */
6868 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6869
6870 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6871 return rc;
6872 }
6873
6874 #ifdef CONFIG_QETH_IPV6
6875 static int
6876 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6877 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6878
6879 {
6880 int rc;
6881 struct qeth_cmd_buffer *iob;
6882
6883 QETH_DBF_TEXT(trace,4,"simassp6");
6884 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6885 0, QETH_PROT_IPV6);
6886 rc = qeth_send_setassparms(card, iob, 0, 0,
6887 qeth_default_setassparms_cb, NULL);
6888 return rc;
6889 }
6890 #endif
6891
6892 static int
6893 qeth_send_simple_setassparms(struct qeth_card *card,
6894 enum qeth_ipa_funcs ipa_func,
6895 __u16 cmd_code, long data)
6896 {
6897 int rc;
6898 int length = 0;
6899 struct qeth_cmd_buffer *iob;
6900
6901 QETH_DBF_TEXT(trace,4,"simassp4");
6902 if (data)
6903 length = sizeof(__u32);
6904 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6905 length, QETH_PROT_IPV4);
6906 rc = qeth_send_setassparms(card, iob, length, data,
6907 qeth_default_setassparms_cb, NULL);
6908 return rc;
6909 }
6910
6911 static inline int
6912 qeth_start_ipa_arp_processing(struct qeth_card *card)
6913 {
6914 int rc;
6915
6916 QETH_DBF_TEXT(trace,3,"ipaarp");
6917
6918 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6919 PRINT_WARN("ARP processing not supported "
6920 "on %s!\n", QETH_CARD_IFNAME(card));
6921 return 0;
6922 }
6923 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6924 IPA_CMD_ASS_START, 0);
6925 if (rc) {
6926 PRINT_WARN("Could not start ARP processing "
6927 "assist on %s: 0x%x\n",
6928 QETH_CARD_IFNAME(card), rc);
6929 }
6930 return rc;
6931 }
6932
6933 static int
6934 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6935 {
6936 int rc;
6937
6938 QETH_DBF_TEXT(trace,3,"ipaipfrg");
6939
6940 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6941 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6942 QETH_CARD_IFNAME(card));
6943 return -EOPNOTSUPP;
6944 }
6945
6946 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6947 IPA_CMD_ASS_START, 0);
6948 if (rc) {
6949 PRINT_WARN("Could not start Hardware IP fragmentation "
6950 "assist on %s: 0x%x\n",
6951 QETH_CARD_IFNAME(card), rc);
6952 } else
6953 PRINT_INFO("Hardware IP fragmentation enabled \n");
6954 return rc;
6955 }
6956
6957 static int
6958 qeth_start_ipa_source_mac(struct qeth_card *card)
6959 {
6960 int rc;
6961
6962 QETH_DBF_TEXT(trace,3,"stsrcmac");
6963
6964 if (!card->options.fake_ll)
6965 return -EOPNOTSUPP;
6966
6967 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6968 PRINT_INFO("Inbound source address not "
6969 "supported on %s\n", QETH_CARD_IFNAME(card));
6970 return -EOPNOTSUPP;
6971 }
6972
6973 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6974 IPA_CMD_ASS_START, 0);
6975 if (rc)
6976 PRINT_WARN("Could not start inbound source "
6977 "assist on %s: 0x%x\n",
6978 QETH_CARD_IFNAME(card), rc);
6979 return rc;
6980 }
6981
6982 static int
6983 qeth_start_ipa_vlan(struct qeth_card *card)
6984 {
6985 int rc = 0;
6986
6987 QETH_DBF_TEXT(trace,3,"strtvlan");
6988
6989 #ifdef CONFIG_QETH_VLAN
6990 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6991 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6992 return -EOPNOTSUPP;
6993 }
6994
6995 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6996 IPA_CMD_ASS_START,0);
6997 if (rc) {
6998 PRINT_WARN("Could not start vlan "
6999 "assist on %s: 0x%x\n",
7000 QETH_CARD_IFNAME(card), rc);
7001 } else {
7002 PRINT_INFO("VLAN enabled \n");
7003 card->dev->features |=
7004 NETIF_F_HW_VLAN_FILTER |
7005 NETIF_F_HW_VLAN_TX |
7006 NETIF_F_HW_VLAN_RX;
7007 }
7008 #endif /* QETH_VLAN */
7009 return rc;
7010 }
7011
7012 static int
7013 qeth_start_ipa_multicast(struct qeth_card *card)
7014 {
7015 int rc;
7016
7017 QETH_DBF_TEXT(trace,3,"stmcast");
7018
7019 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7020 PRINT_WARN("Multicast not supported on %s\n",
7021 QETH_CARD_IFNAME(card));
7022 return -EOPNOTSUPP;
7023 }
7024
7025 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7026 IPA_CMD_ASS_START,0);
7027 if (rc) {
7028 PRINT_WARN("Could not start multicast "
7029 "assist on %s: rc=%i\n",
7030 QETH_CARD_IFNAME(card), rc);
7031 } else {
7032 PRINT_INFO("Multicast enabled\n");
7033 card->dev->flags |= IFF_MULTICAST;
7034 }
7035 return rc;
7036 }
7037
7038 #ifdef CONFIG_QETH_IPV6
7039 static int
7040 qeth_softsetup_ipv6(struct qeth_card *card)
7041 {
7042 int rc;
7043
7044 QETH_DBF_TEXT(trace,3,"softipv6");
7045
7046 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7047 if (rc) {
7048 PRINT_ERR("IPv6 startlan failed on %s\n",
7049 QETH_CARD_IFNAME(card));
7050 return rc;
7051 }
7052 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7053 if (rc) {
7054 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7055 QETH_CARD_IFNAME(card));
7056 return rc;
7057 }
7058 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7059 IPA_CMD_ASS_START, 3);
7060 if (rc) {
7061 PRINT_WARN("IPv6 start assist (version 4) failed "
7062 "on %s: 0x%x\n",
7063 QETH_CARD_IFNAME(card), rc);
7064 return rc;
7065 }
7066 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7067 IPA_CMD_ASS_START);
7068 if (rc) {
7069 PRINT_WARN("IPV6 start assist (version 6) failed "
7070 "on %s: 0x%x\n",
7071 QETH_CARD_IFNAME(card), rc);
7072 return rc;
7073 }
7074 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7075 IPA_CMD_ASS_START);
7076 if (rc) {
7077 PRINT_WARN("Could not enable passthrough "
7078 "on %s: 0x%x\n",
7079 QETH_CARD_IFNAME(card), rc);
7080 return rc;
7081 }
7082 PRINT_INFO("IPV6 enabled \n");
7083 return 0;
7084 }
7085
7086 #endif
7087
7088 static int
7089 qeth_start_ipa_ipv6(struct qeth_card *card)
7090 {
7091 int rc = 0;
7092 #ifdef CONFIG_QETH_IPV6
7093 QETH_DBF_TEXT(trace,3,"strtipv6");
7094
7095 if (!qeth_is_supported(card, IPA_IPV6)) {
7096 PRINT_WARN("IPv6 not supported on %s\n",
7097 QETH_CARD_IFNAME(card));
7098 return 0;
7099 }
7100 rc = qeth_softsetup_ipv6(card);
7101 #endif
7102 return rc ;
7103 }
7104
7105 static int
7106 qeth_start_ipa_broadcast(struct qeth_card *card)
7107 {
7108 int rc;
7109
7110 QETH_DBF_TEXT(trace,3,"stbrdcst");
7111 card->info.broadcast_capable = 0;
7112 if (!qeth_is_supported(card, IPA_FILTERING)) {
7113 PRINT_WARN("Broadcast not supported on %s\n",
7114 QETH_CARD_IFNAME(card));
7115 rc = -EOPNOTSUPP;
7116 goto out;
7117 }
7118 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7119 IPA_CMD_ASS_START, 0);
7120 if (rc) {
7121 PRINT_WARN("Could not enable broadcasting filtering "
7122 "on %s: 0x%x\n",
7123 QETH_CARD_IFNAME(card), rc);
7124 goto out;
7125 }
7126
7127 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7128 IPA_CMD_ASS_CONFIGURE, 1);
7129 if (rc) {
7130 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7131 QETH_CARD_IFNAME(card), rc);
7132 goto out;
7133 }
7134 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7135 PRINT_INFO("Broadcast enabled \n");
7136 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7137 IPA_CMD_ASS_ENABLE, 1);
7138 if (rc) {
7139 PRINT_WARN("Could not set up broadcast echo filtering on "
7140 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7141 goto out;
7142 }
7143 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7144 out:
7145 if (card->info.broadcast_capable)
7146 card->dev->flags |= IFF_BROADCAST;
7147 else
7148 card->dev->flags &= ~IFF_BROADCAST;
7149 return rc;
7150 }
7151
7152 static int
7153 qeth_send_checksum_command(struct qeth_card *card)
7154 {
7155 int rc;
7156
7157 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7158 IPA_CMD_ASS_START, 0);
7159 if (rc) {
7160 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7161 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7162 QETH_CARD_IFNAME(card), rc);
7163 return rc;
7164 }
7165 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7166 IPA_CMD_ASS_ENABLE,
7167 card->info.csum_mask);
7168 if (rc) {
7169 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7170 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7171 QETH_CARD_IFNAME(card), rc);
7172 return rc;
7173 }
7174 return 0;
7175 }
7176
7177 static int
7178 qeth_start_ipa_checksum(struct qeth_card *card)
7179 {
7180 int rc = 0;
7181
7182 QETH_DBF_TEXT(trace,3,"strtcsum");
7183
7184 if (card->options.checksum_type == NO_CHECKSUMMING) {
7185 PRINT_WARN("Using no checksumming on %s.\n",
7186 QETH_CARD_IFNAME(card));
7187 return 0;
7188 }
7189 if (card->options.checksum_type == SW_CHECKSUMMING) {
7190 PRINT_WARN("Using SW checksumming on %s.\n",
7191 QETH_CARD_IFNAME(card));
7192 return 0;
7193 }
7194 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7195 PRINT_WARN("Inbound HW Checksumming not "
7196 "supported on %s,\ncontinuing "
7197 "using Inbound SW Checksumming\n",
7198 QETH_CARD_IFNAME(card));
7199 card->options.checksum_type = SW_CHECKSUMMING;
7200 return 0;
7201 }
7202 rc = qeth_send_checksum_command(card);
7203 if (!rc) {
7204 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7205 }
7206 return rc;
7207 }
7208
7209 static int
7210 qeth_start_ipa_tso(struct qeth_card *card)
7211 {
7212 int rc;
7213
7214 QETH_DBF_TEXT(trace,3,"sttso");
7215
7216 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7217 PRINT_WARN("Outbound TSO not supported on %s\n",
7218 QETH_CARD_IFNAME(card));
7219 rc = -EOPNOTSUPP;
7220 } else {
7221 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7222 IPA_CMD_ASS_START,0);
7223 if (rc)
7224 PRINT_WARN("Could not start outbound TSO "
7225 "assist on %s: rc=%i\n",
7226 QETH_CARD_IFNAME(card), rc);
7227 else
7228 PRINT_INFO("Outbound TSO enabled\n");
7229 }
7230 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7231 card->options.large_send = QETH_LARGE_SEND_NO;
7232 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7233 }
7234 return rc;
7235 }
7236
7237 static int
7238 qeth_start_ipassists(struct qeth_card *card)
7239 {
7240 QETH_DBF_TEXT(trace,3,"strtipas");
7241 qeth_start_ipa_arp_processing(card); /* go on*/
7242 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7243 qeth_start_ipa_source_mac(card); /* go on*/
7244 qeth_start_ipa_vlan(card); /* go on*/
7245 qeth_start_ipa_multicast(card); /* go on*/
7246 qeth_start_ipa_ipv6(card); /* go on*/
7247 qeth_start_ipa_broadcast(card); /* go on*/
7248 qeth_start_ipa_checksum(card); /* go on*/
7249 qeth_start_ipa_tso(card); /* go on*/
7250 return 0;
7251 }
7252
7253 static int
7254 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7255 enum qeth_prot_versions prot)
7256 {
7257 int rc;
7258 struct qeth_ipa_cmd *cmd;
7259 struct qeth_cmd_buffer *iob;
7260
7261 QETH_DBF_TEXT(trace,4,"setroutg");
7262 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7263 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7264 cmd->data.setrtg.type = (type);
7265 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7266
7267 return rc;
7268
7269 }
7270
7271 static void
7272 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7273 enum qeth_prot_versions prot)
7274 {
7275 if (card->info.type == QETH_CARD_TYPE_IQD) {
7276 switch (*type) {
7277 case NO_ROUTER:
7278 case PRIMARY_CONNECTOR:
7279 case SECONDARY_CONNECTOR:
7280 case MULTICAST_ROUTER:
7281 return;
7282 default:
7283 goto out_inval;
7284 }
7285 } else {
7286 switch (*type) {
7287 case NO_ROUTER:
7288 case PRIMARY_ROUTER:
7289 case SECONDARY_ROUTER:
7290 return;
7291 case MULTICAST_ROUTER:
7292 if (qeth_is_ipafunc_supported(card, prot,
7293 IPA_OSA_MC_ROUTER))
7294 return;
7295 default:
7296 goto out_inval;
7297 }
7298 }
7299 out_inval:
7300 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7301 "Router status set to 'no router'.\n",
7302 ((*type == PRIMARY_ROUTER)? "primary router" :
7303 (*type == SECONDARY_ROUTER)? "secondary router" :
7304 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7305 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7306 (*type == MULTICAST_ROUTER)? "multicast router" :
7307 "unknown"),
7308 card->dev->name);
7309 *type = NO_ROUTER;
7310 }
7311
7312 int
7313 qeth_setrouting_v4(struct qeth_card *card)
7314 {
7315 int rc;
7316
7317 QETH_DBF_TEXT(trace,3,"setrtg4");
7318
7319 qeth_correct_routing_type(card, &card->options.route4.type,
7320 QETH_PROT_IPV4);
7321
7322 rc = qeth_send_setrouting(card, card->options.route4.type,
7323 QETH_PROT_IPV4);
7324 if (rc) {
7325 card->options.route4.type = NO_ROUTER;
7326 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7327 "Type set to 'no router'.\n",
7328 rc, QETH_CARD_IFNAME(card));
7329 }
7330 return rc;
7331 }
7332
7333 int
7334 qeth_setrouting_v6(struct qeth_card *card)
7335 {
7336 int rc = 0;
7337
7338 QETH_DBF_TEXT(trace,3,"setrtg6");
7339 #ifdef CONFIG_QETH_IPV6
7340
7341 qeth_correct_routing_type(card, &card->options.route6.type,
7342 QETH_PROT_IPV6);
7343
7344 rc = qeth_send_setrouting(card, card->options.route6.type,
7345 QETH_PROT_IPV6);
7346 if (rc) {
7347 card->options.route6.type = NO_ROUTER;
7348 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7349 "Type set to 'no router'.\n",
7350 rc, QETH_CARD_IFNAME(card));
7351 }
7352 #endif
7353 return rc;
7354 }
7355
7356 int
7357 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7358 {
7359 int rc = 0;
7360
7361 if (card->dev == NULL) {
7362 card->options.large_send = type;
7363 return 0;
7364 }
7365 if (card->state == CARD_STATE_UP)
7366 netif_tx_disable(card->dev);
7367 card->options.large_send = type;
7368 switch (card->options.large_send) {
7369 case QETH_LARGE_SEND_EDDP:
7370 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7371 break;
7372 case QETH_LARGE_SEND_TSO:
7373 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7374 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7375 } else {
7376 PRINT_WARN("TSO not supported on %s. "
7377 "large_send set to 'no'.\n",
7378 card->dev->name);
7379 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7380 card->options.large_send = QETH_LARGE_SEND_NO;
7381 rc = -EOPNOTSUPP;
7382 }
7383 break;
7384 default: /* includes QETH_LARGE_SEND_NO */
7385 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7386 break;
7387 }
7388 if (card->state == CARD_STATE_UP)
7389 netif_wake_queue(card->dev);
7390 return rc;
7391 }
7392
7393 /*
7394 * softsetup card: init IPA stuff
7395 */
7396 static int
7397 qeth_softsetup_card(struct qeth_card *card)
7398 {
7399 int rc;
7400
7401 QETH_DBF_TEXT(setup, 2, "softsetp");
7402
7403 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7404 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7405 if (rc == 0xe080){
7406 PRINT_WARN("LAN on card %s if offline! "
7407 "Continuing softsetup.\n",
7408 CARD_BUS_ID(card));
7409 card->lan_online = 0;
7410 } else
7411 return rc;
7412 } else
7413 card->lan_online = 1;
7414 if (card->info.type==QETH_CARD_TYPE_OSN)
7415 goto out;
7416 qeth_set_large_send(card, card->options.large_send);
7417 if (card->options.layer2) {
7418 card->dev->features |=
7419 NETIF_F_HW_VLAN_FILTER |
7420 NETIF_F_HW_VLAN_TX |
7421 NETIF_F_HW_VLAN_RX;
7422 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7423 card->info.broadcast_capable=1;
7424 if ((rc = qeth_layer2_initialize(card))) {
7425 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7426 return rc;
7427 }
7428 #ifdef CONFIG_QETH_VLAN
7429 qeth_layer2_process_vlans(card, 0);
7430 #endif
7431 goto out;
7432 }
7433 if ((rc = qeth_setadapter_parms(card)))
7434 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7435 if ((rc = qeth_start_ipassists(card)))
7436 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7437 if ((rc = qeth_setrouting_v4(card)))
7438 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7439 if ((rc = qeth_setrouting_v6(card)))
7440 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7441 out:
7442 netif_tx_disable(card->dev);
7443 return 0;
7444 }
7445
7446 #ifdef CONFIG_QETH_IPV6
7447 static int
7448 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7449 unsigned long data)
7450 {
7451 struct qeth_ipa_cmd *cmd;
7452
7453 cmd = (struct qeth_ipa_cmd *) data;
7454 if (cmd->hdr.return_code == 0)
7455 card->info.unique_id = *((__u16 *)
7456 &cmd->data.create_destroy_addr.unique_id[6]);
7457 else {
7458 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7459 UNIQUE_ID_NOT_BY_CARD;
7460 PRINT_WARN("couldn't get a unique id from the card on device "
7461 "%s (result=x%x), using default id. ipv6 "
7462 "autoconfig on other lpars may lead to duplicate "
7463 "ip addresses. please use manually "
7464 "configured ones.\n",
7465 CARD_BUS_ID(card), cmd->hdr.return_code);
7466 }
7467 return 0;
7468 }
7469 #endif
7470
7471 static int
7472 qeth_put_unique_id(struct qeth_card *card)
7473 {
7474
7475 int rc = 0;
7476 #ifdef CONFIG_QETH_IPV6
7477 struct qeth_cmd_buffer *iob;
7478 struct qeth_ipa_cmd *cmd;
7479
7480 QETH_DBF_TEXT(trace,2,"puniqeid");
7481
7482 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7483 UNIQUE_ID_NOT_BY_CARD)
7484 return -1;
7485 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7486 QETH_PROT_IPV6);
7487 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7488 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7489 card->info.unique_id;
7490 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7491 card->dev->dev_addr, OSA_ADDR_LEN);
7492 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7493 #else
7494 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7495 UNIQUE_ID_NOT_BY_CARD;
7496 #endif
7497 return rc;
7498 }
7499
7500 /**
7501 * Clear IP List
7502 */
7503 static void
7504 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7505 {
7506 struct qeth_ipaddr *addr, *tmp;
7507 unsigned long flags;
7508
7509 QETH_DBF_TEXT(trace,4,"clearip");
7510 spin_lock_irqsave(&card->ip_lock, flags);
7511 /* clear todo list */
7512 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7513 list_del(&addr->entry);
7514 kfree(addr);
7515 }
7516
7517 while (!list_empty(&card->ip_list)) {
7518 addr = list_entry(card->ip_list.next,
7519 struct qeth_ipaddr, entry);
7520 list_del_init(&addr->entry);
7521 if (clean) {
7522 spin_unlock_irqrestore(&card->ip_lock, flags);
7523 qeth_deregister_addr_entry(card, addr);
7524 spin_lock_irqsave(&card->ip_lock, flags);
7525 }
7526 if (!recover || addr->is_multicast) {
7527 kfree(addr);
7528 continue;
7529 }
7530 list_add_tail(&addr->entry, card->ip_tbd_list);
7531 }
7532 spin_unlock_irqrestore(&card->ip_lock, flags);
7533 }
7534
7535 static void
7536 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7537 int clear_start_mask)
7538 {
7539 unsigned long flags;
7540
7541 spin_lock_irqsave(&card->thread_mask_lock, flags);
7542 card->thread_allowed_mask = threads;
7543 if (clear_start_mask)
7544 card->thread_start_mask &= threads;
7545 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7546 wake_up(&card->wait_q);
7547 }
7548
7549 static inline int
7550 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7551 {
7552 unsigned long flags;
7553 int rc = 0;
7554
7555 spin_lock_irqsave(&card->thread_mask_lock, flags);
7556 rc = (card->thread_running_mask & threads);
7557 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7558 return rc;
7559 }
7560
7561 static int
7562 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7563 {
7564 return wait_event_interruptible(card->wait_q,
7565 qeth_threads_running(card, threads) == 0);
7566 }
7567
7568 static int
7569 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7570 {
7571 int rc = 0;
7572
7573 QETH_DBF_TEXT(setup ,2,"stopcard");
7574 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7575
7576 qeth_set_allowed_threads(card, 0, 1);
7577 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7578 return -ERESTARTSYS;
7579 if (card->read.state == CH_STATE_UP &&
7580 card->write.state == CH_STATE_UP &&
7581 (card->state == CARD_STATE_UP)) {
7582 if (recovery_mode &&
7583 card->info.type != QETH_CARD_TYPE_OSN) {
7584 qeth_stop(card->dev);
7585 } else {
7586 rtnl_lock();
7587 dev_close(card->dev);
7588 rtnl_unlock();
7589 }
7590 if (!card->use_hard_stop) {
7591 __u8 *mac = &card->dev->dev_addr[0];
7592 rc = qeth_layer2_send_delmac(card, mac);
7593 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7594 if ((rc = qeth_send_stoplan(card)))
7595 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7596 }
7597 card->state = CARD_STATE_SOFTSETUP;
7598 }
7599 if (card->state == CARD_STATE_SOFTSETUP) {
7600 #ifdef CONFIG_QETH_VLAN
7601 if (card->options.layer2)
7602 qeth_layer2_process_vlans(card, 1);
7603 #endif
7604 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7605 qeth_clear_ipacmd_list(card);
7606 card->state = CARD_STATE_HARDSETUP;
7607 }
7608 if (card->state == CARD_STATE_HARDSETUP) {
7609 if ((!card->use_hard_stop) &&
7610 (!card->options.layer2))
7611 if ((rc = qeth_put_unique_id(card)))
7612 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7613 qeth_qdio_clear_card(card, 0);
7614 qeth_clear_qdio_buffers(card);
7615 qeth_clear_working_pool_list(card);
7616 card->state = CARD_STATE_DOWN;
7617 }
7618 if (card->state == CARD_STATE_DOWN) {
7619 qeth_clear_cmd_buffers(&card->read);
7620 qeth_clear_cmd_buffers(&card->write);
7621 }
7622 card->use_hard_stop = 0;
7623 return rc;
7624 }
7625
7626
7627 static int
7628 qeth_get_unique_id(struct qeth_card *card)
7629 {
7630 int rc = 0;
7631 #ifdef CONFIG_QETH_IPV6
7632 struct qeth_cmd_buffer *iob;
7633 struct qeth_ipa_cmd *cmd;
7634
7635 QETH_DBF_TEXT(setup, 2, "guniqeid");
7636
7637 if (!qeth_is_supported(card,IPA_IPV6)) {
7638 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7639 UNIQUE_ID_NOT_BY_CARD;
7640 return 0;
7641 }
7642
7643 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7644 QETH_PROT_IPV6);
7645 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7646 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7647 card->info.unique_id;
7648
7649 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7650 #else
7651 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7652 UNIQUE_ID_NOT_BY_CARD;
7653 #endif
7654 return rc;
7655 }
7656 static void
7657 qeth_print_status_with_portname(struct qeth_card *card)
7658 {
7659 char dbf_text[15];
7660 int i;
7661
7662 sprintf(dbf_text, "%s", card->info.portname + 1);
7663 for (i = 0; i < 8; i++)
7664 dbf_text[i] =
7665 (char) _ebcasc[(__u8) dbf_text[i]];
7666 dbf_text[8] = 0;
7667 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7668 "with link type %s (portname: %s)\n",
7669 CARD_RDEV_ID(card),
7670 CARD_WDEV_ID(card),
7671 CARD_DDEV_ID(card),
7672 qeth_get_cardname(card),
7673 (card->info.mcl_level[0]) ? " (level: " : "",
7674 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7675 (card->info.mcl_level[0]) ? ")" : "",
7676 qeth_get_cardname_short(card),
7677 dbf_text);
7678
7679 }
7680
7681 static void
7682 qeth_print_status_no_portname(struct qeth_card *card)
7683 {
7684 if (card->info.portname[0])
7685 printk("qeth: Device %s/%s/%s is a%s "
7686 "card%s%s%s\nwith link type %s "
7687 "(no portname needed by interface).\n",
7688 CARD_RDEV_ID(card),
7689 CARD_WDEV_ID(card),
7690 CARD_DDEV_ID(card),
7691 qeth_get_cardname(card),
7692 (card->info.mcl_level[0]) ? " (level: " : "",
7693 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7694 (card->info.mcl_level[0]) ? ")" : "",
7695 qeth_get_cardname_short(card));
7696 else
7697 printk("qeth: Device %s/%s/%s is a%s "
7698 "card%s%s%s\nwith link type %s.\n",
7699 CARD_RDEV_ID(card),
7700 CARD_WDEV_ID(card),
7701 CARD_DDEV_ID(card),
7702 qeth_get_cardname(card),
7703 (card->info.mcl_level[0]) ? " (level: " : "",
7704 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7705 (card->info.mcl_level[0]) ? ")" : "",
7706 qeth_get_cardname_short(card));
7707 }
7708
7709 static void
7710 qeth_print_status_message(struct qeth_card *card)
7711 {
7712 switch (card->info.type) {
7713 case QETH_CARD_TYPE_OSAE:
7714 /* VM will use a non-zero first character
7715 * to indicate a HiperSockets like reporting
7716 * of the level OSA sets the first character to zero
7717 * */
7718 if (!card->info.mcl_level[0]) {
7719 sprintf(card->info.mcl_level,"%02x%02x",
7720 card->info.mcl_level[2],
7721 card->info.mcl_level[3]);
7722
7723 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7724 break;
7725 }
7726 /* fallthrough */
7727 case QETH_CARD_TYPE_IQD:
7728 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7729 card->info.mcl_level[0]];
7730 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7731 card->info.mcl_level[1]];
7732 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7733 card->info.mcl_level[2]];
7734 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7735 card->info.mcl_level[3]];
7736 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7737 break;
7738 default:
7739 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7740 }
7741 if (card->info.portname_required)
7742 qeth_print_status_with_portname(card);
7743 else
7744 qeth_print_status_no_portname(card);
7745 }
7746
7747 static int
7748 qeth_register_netdev(struct qeth_card *card)
7749 {
7750 QETH_DBF_TEXT(setup, 3, "regnetd");
7751 if (card->dev->reg_state != NETREG_UNINITIALIZED)
7752 return 0;
7753 /* sysfs magic */
7754 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7755 return register_netdev(card->dev);
7756 }
7757
7758 static void
7759 qeth_start_again(struct qeth_card *card, int recovery_mode)
7760 {
7761 QETH_DBF_TEXT(setup ,2, "startag");
7762
7763 if (recovery_mode &&
7764 card->info.type != QETH_CARD_TYPE_OSN) {
7765 qeth_open(card->dev);
7766 } else {
7767 rtnl_lock();
7768 dev_open(card->dev);
7769 rtnl_unlock();
7770 }
7771 /* this also sets saved unicast addresses */
7772 qeth_set_multicast_list(card->dev);
7773 }
7774
7775
7776 /* Layer 2 specific stuff */
7777 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7778 if (card->options.option == value) { \
7779 PRINT_ERR("%s not supported with layer 2 " \
7780 "functionality, ignoring option on read" \
7781 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7782 card->options.option = reset_value; \
7783 }
7784 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7785 if (card->options.option != value) { \
7786 PRINT_ERR("%s not supported with layer 2 " \
7787 "functionality, ignoring option on read" \
7788 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7789 card->options.option = reset_value; \
7790 }
7791
7792
7793 static void qeth_make_parameters_consistent(struct qeth_card *card)
7794 {
7795
7796 if (card->options.layer2 == 0)
7797 return;
7798 if (card->info.type == QETH_CARD_TYPE_OSN)
7799 return;
7800 if (card->info.type == QETH_CARD_TYPE_IQD) {
7801 PRINT_ERR("Device %s does not support layer 2 functionality." \
7802 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7803 card->options.layer2 = 0;
7804 return;
7805 }
7806 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7807 "Routing options are");
7808 #ifdef CONFIG_QETH_IPV6
7809 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7810 "Routing options are");
7811 #endif
7812 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7813 QETH_CHECKSUM_DEFAULT,
7814 "Checksumming options are");
7815 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7816 QETH_TR_BROADCAST_ALLRINGS,
7817 "Broadcast mode options are");
7818 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7819 QETH_TR_MACADDR_NONCANONICAL,
7820 "Canonical MAC addr options are");
7821 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7822 "Broadcast faking options are");
7823 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7824 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7825 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7826 }
7827
7828
7829 static int
7830 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7831 {
7832 struct qeth_card *card = gdev->dev.driver_data;
7833 int rc = 0;
7834 enum qeth_card_states recover_flag;
7835
7836 BUG_ON(!card);
7837 QETH_DBF_TEXT(setup ,2, "setonlin");
7838 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7839
7840 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7841 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7842 PRINT_WARN("set_online of card %s interrupted by user!\n",
7843 CARD_BUS_ID(card));
7844 return -ERESTARTSYS;
7845 }
7846
7847 recover_flag = card->state;
7848 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7849 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7850 (rc = ccw_device_set_online(CARD_DDEV(card)))){
7851 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7852 return -EIO;
7853 }
7854
7855 qeth_make_parameters_consistent(card);
7856
7857 if ((rc = qeth_hardsetup_card(card))){
7858 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7859 goto out_remove;
7860 }
7861 card->state = CARD_STATE_HARDSETUP;
7862
7863 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7864 rc = qeth_get_unique_id(card);
7865
7866 if (rc && card->options.layer2 == 0) {
7867 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7868 goto out_remove;
7869 }
7870 qeth_print_status_message(card);
7871 if ((rc = qeth_register_netdev(card))){
7872 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7873 goto out_remove;
7874 }
7875 if ((rc = qeth_softsetup_card(card))){
7876 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7877 goto out_remove;
7878 }
7879 card->state = CARD_STATE_SOFTSETUP;
7880
7881 if ((rc = qeth_init_qdio_queues(card))){
7882 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7883 goto out_remove;
7884 }
7885 netif_carrier_on(card->dev);
7886
7887 qeth_set_allowed_threads(card, 0xffffffff, 0);
7888 if (recover_flag == CARD_STATE_RECOVER)
7889 qeth_start_again(card, recovery_mode);
7890 qeth_notify_processes();
7891 return 0;
7892 out_remove:
7893 card->use_hard_stop = 1;
7894 qeth_stop_card(card, 0);
7895 ccw_device_set_offline(CARD_DDEV(card));
7896 ccw_device_set_offline(CARD_WDEV(card));
7897 ccw_device_set_offline(CARD_RDEV(card));
7898 if (recover_flag == CARD_STATE_RECOVER)
7899 card->state = CARD_STATE_RECOVER;
7900 else
7901 card->state = CARD_STATE_DOWN;
7902 return -ENODEV;
7903 }
7904
7905 static int
7906 qeth_set_online(struct ccwgroup_device *gdev)
7907 {
7908 return __qeth_set_online(gdev, 0);
7909 }
7910
7911 static struct ccw_device_id qeth_ids[] = {
7912 {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7913 {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7914 {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
7915 {},
7916 };
7917 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7918
7919 struct device *qeth_root_dev = NULL;
7920
7921 struct ccwgroup_driver qeth_ccwgroup_driver = {
7922 .owner = THIS_MODULE,
7923 .name = "qeth",
7924 .driver_id = 0xD8C5E3C8,
7925 .probe = qeth_probe_device,
7926 .remove = qeth_remove_device,
7927 .set_online = qeth_set_online,
7928 .set_offline = qeth_set_offline,
7929 };
7930
7931 struct ccw_driver qeth_ccw_driver = {
7932 .name = "qeth",
7933 .ids = qeth_ids,
7934 .probe = ccwgroup_probe_ccwdev,
7935 .remove = ccwgroup_remove_ccwdev,
7936 };
7937
7938
7939 static void
7940 qeth_unregister_dbf_views(void)
7941 {
7942 if (qeth_dbf_setup)
7943 debug_unregister(qeth_dbf_setup);
7944 if (qeth_dbf_qerr)
7945 debug_unregister(qeth_dbf_qerr);
7946 if (qeth_dbf_sense)
7947 debug_unregister(qeth_dbf_sense);
7948 if (qeth_dbf_misc)
7949 debug_unregister(qeth_dbf_misc);
7950 if (qeth_dbf_data)
7951 debug_unregister(qeth_dbf_data);
7952 if (qeth_dbf_control)
7953 debug_unregister(qeth_dbf_control);
7954 if (qeth_dbf_trace)
7955 debug_unregister(qeth_dbf_trace);
7956 }
7957 static int
7958 qeth_register_dbf_views(void)
7959 {
7960 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7961 QETH_DBF_SETUP_PAGES,
7962 QETH_DBF_SETUP_NR_AREAS,
7963 QETH_DBF_SETUP_LEN);
7964 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7965 QETH_DBF_MISC_PAGES,
7966 QETH_DBF_MISC_NR_AREAS,
7967 QETH_DBF_MISC_LEN);
7968 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7969 QETH_DBF_DATA_PAGES,
7970 QETH_DBF_DATA_NR_AREAS,
7971 QETH_DBF_DATA_LEN);
7972 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7973 QETH_DBF_CONTROL_PAGES,
7974 QETH_DBF_CONTROL_NR_AREAS,
7975 QETH_DBF_CONTROL_LEN);
7976 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7977 QETH_DBF_SENSE_PAGES,
7978 QETH_DBF_SENSE_NR_AREAS,
7979 QETH_DBF_SENSE_LEN);
7980 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7981 QETH_DBF_QERR_PAGES,
7982 QETH_DBF_QERR_NR_AREAS,
7983 QETH_DBF_QERR_LEN);
7984 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7985 QETH_DBF_TRACE_PAGES,
7986 QETH_DBF_TRACE_NR_AREAS,
7987 QETH_DBF_TRACE_LEN);
7988
7989 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
7990 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
7991 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
7992 (qeth_dbf_trace == NULL)) {
7993 qeth_unregister_dbf_views();
7994 return -ENOMEM;
7995 }
7996 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7997 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7998
7999 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8000 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8001
8002 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8003 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8004
8005 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8006 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8007
8008 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8009 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8010
8011 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8012 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8013
8014 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8015 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8016
8017 return 0;
8018 }
8019
8020 #ifdef CONFIG_QETH_IPV6
8021 extern struct neigh_table arp_tbl;
8022 static struct neigh_ops *arp_direct_ops;
8023 static int (*qeth_old_arp_constructor) (struct neighbour *);
8024
8025 static struct neigh_ops arp_direct_ops_template = {
8026 .family = AF_INET,
8027 .solicit = NULL,
8028 .error_report = NULL,
8029 .output = dev_queue_xmit,
8030 .connected_output = dev_queue_xmit,
8031 .hh_output = dev_queue_xmit,
8032 .queue_xmit = dev_queue_xmit
8033 };
8034
8035 static int
8036 qeth_arp_constructor(struct neighbour *neigh)
8037 {
8038 struct net_device *dev = neigh->dev;
8039 struct in_device *in_dev;
8040 struct neigh_parms *parms;
8041 struct qeth_card *card;
8042
8043 card = qeth_get_card_from_dev(dev);
8044 if (card == NULL)
8045 goto out;
8046 if((card->options.layer2) ||
8047 (card->dev->hard_header == qeth_fake_header))
8048 goto out;
8049
8050 rcu_read_lock();
8051 in_dev = __in_dev_get_rcu(dev);
8052 if (in_dev == NULL) {
8053 rcu_read_unlock();
8054 return -EINVAL;
8055 }
8056
8057 parms = in_dev->arp_parms;
8058 __neigh_parms_put(neigh->parms);
8059 neigh->parms = neigh_parms_clone(parms);
8060 rcu_read_unlock();
8061
8062 neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8063 neigh->nud_state = NUD_NOARP;
8064 neigh->ops = arp_direct_ops;
8065 neigh->output = neigh->ops->queue_xmit;
8066 return 0;
8067 out:
8068 return qeth_old_arp_constructor(neigh);
8069 }
8070 #endif /*CONFIG_QETH_IPV6*/
8071
8072 /*
8073 * IP address takeover related functions
8074 */
8075 static void
8076 qeth_clear_ipato_list(struct qeth_card *card)
8077 {
8078 struct qeth_ipato_entry *ipatoe, *tmp;
8079 unsigned long flags;
8080
8081 spin_lock_irqsave(&card->ip_lock, flags);
8082 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8083 list_del(&ipatoe->entry);
8084 kfree(ipatoe);
8085 }
8086 spin_unlock_irqrestore(&card->ip_lock, flags);
8087 }
8088
8089 int
8090 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8091 {
8092 struct qeth_ipato_entry *ipatoe;
8093 unsigned long flags;
8094 int rc = 0;
8095
8096 QETH_DBF_TEXT(trace, 2, "addipato");
8097 spin_lock_irqsave(&card->ip_lock, flags);
8098 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8099 if (ipatoe->proto != new->proto)
8100 continue;
8101 if (!memcmp(ipatoe->addr, new->addr,
8102 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8103 (ipatoe->mask_bits == new->mask_bits)){
8104 PRINT_WARN("ipato entry already exists!\n");
8105 rc = -EEXIST;
8106 break;
8107 }
8108 }
8109 if (!rc) {
8110 list_add_tail(&new->entry, &card->ipato.entries);
8111 }
8112 spin_unlock_irqrestore(&card->ip_lock, flags);
8113 return rc;
8114 }
8115
8116 void
8117 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8118 u8 *addr, int mask_bits)
8119 {
8120 struct qeth_ipato_entry *ipatoe, *tmp;
8121 unsigned long flags;
8122
8123 QETH_DBF_TEXT(trace, 2, "delipato");
8124 spin_lock_irqsave(&card->ip_lock, flags);
8125 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8126 if (ipatoe->proto != proto)
8127 continue;
8128 if (!memcmp(ipatoe->addr, addr,
8129 (proto == QETH_PROT_IPV4)? 4:16) &&
8130 (ipatoe->mask_bits == mask_bits)){
8131 list_del(&ipatoe->entry);
8132 kfree(ipatoe);
8133 }
8134 }
8135 spin_unlock_irqrestore(&card->ip_lock, flags);
8136 }
8137
8138 static inline void
8139 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8140 {
8141 int i, j;
8142 u8 octet;
8143
8144 for (i = 0; i < len; ++i){
8145 octet = addr[i];
8146 for (j = 7; j >= 0; --j){
8147 bits[i*8 + j] = octet & 1;
8148 octet >>= 1;
8149 }
8150 }
8151 }
8152
8153 static int
8154 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8155 {
8156 struct qeth_ipato_entry *ipatoe;
8157 u8 addr_bits[128] = {0, };
8158 u8 ipatoe_bits[128] = {0, };
8159 int rc = 0;
8160
8161 if (!card->ipato.enabled)
8162 return 0;
8163
8164 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8165 (addr->proto == QETH_PROT_IPV4)? 4:16);
8166 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8167 if (addr->proto != ipatoe->proto)
8168 continue;
8169 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8170 (ipatoe->proto==QETH_PROT_IPV4) ?
8171 4:16);
8172 if (addr->proto == QETH_PROT_IPV4)
8173 rc = !memcmp(addr_bits, ipatoe_bits,
8174 min(32, ipatoe->mask_bits));
8175 else
8176 rc = !memcmp(addr_bits, ipatoe_bits,
8177 min(128, ipatoe->mask_bits));
8178 if (rc)
8179 break;
8180 }
8181 /* invert? */
8182 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8183 rc = !rc;
8184 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8185 rc = !rc;
8186
8187 return rc;
8188 }
8189
8190 /*
8191 * VIPA related functions
8192 */
8193 int
8194 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8195 const u8 *addr)
8196 {
8197 struct qeth_ipaddr *ipaddr;
8198 unsigned long flags;
8199 int rc = 0;
8200
8201 ipaddr = qeth_get_addr_buffer(proto);
8202 if (ipaddr){
8203 if (proto == QETH_PROT_IPV4){
8204 QETH_DBF_TEXT(trace, 2, "addvipa4");
8205 memcpy(&ipaddr->u.a4.addr, addr, 4);
8206 ipaddr->u.a4.mask = 0;
8207 #ifdef CONFIG_QETH_IPV6
8208 } else if (proto == QETH_PROT_IPV6){
8209 QETH_DBF_TEXT(trace, 2, "addvipa6");
8210 memcpy(&ipaddr->u.a6.addr, addr, 16);
8211 ipaddr->u.a6.pfxlen = 0;
8212 #endif
8213 }
8214 ipaddr->type = QETH_IP_TYPE_VIPA;
8215 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8216 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8217 } else
8218 return -ENOMEM;
8219 spin_lock_irqsave(&card->ip_lock, flags);
8220 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8221 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8222 rc = -EEXIST;
8223 spin_unlock_irqrestore(&card->ip_lock, flags);
8224 if (rc){
8225 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8226 return rc;
8227 }
8228 if (!qeth_add_ip(card, ipaddr))
8229 kfree(ipaddr);
8230 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8231 schedule_work(&card->kernel_thread_starter);
8232 return rc;
8233 }
8234
8235 void
8236 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8237 const u8 *addr)
8238 {
8239 struct qeth_ipaddr *ipaddr;
8240
8241 ipaddr = qeth_get_addr_buffer(proto);
8242 if (ipaddr){
8243 if (proto == QETH_PROT_IPV4){
8244 QETH_DBF_TEXT(trace, 2, "delvipa4");
8245 memcpy(&ipaddr->u.a4.addr, addr, 4);
8246 ipaddr->u.a4.mask = 0;
8247 #ifdef CONFIG_QETH_IPV6
8248 } else if (proto == QETH_PROT_IPV6){
8249 QETH_DBF_TEXT(trace, 2, "delvipa6");
8250 memcpy(&ipaddr->u.a6.addr, addr, 16);
8251 ipaddr->u.a6.pfxlen = 0;
8252 #endif
8253 }
8254 ipaddr->type = QETH_IP_TYPE_VIPA;
8255 } else
8256 return;
8257 if (!qeth_delete_ip(card, ipaddr))
8258 kfree(ipaddr);
8259 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8260 schedule_work(&card->kernel_thread_starter);
8261 }
8262
8263 /*
8264 * proxy ARP related functions
8265 */
8266 int
8267 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8268 const u8 *addr)
8269 {
8270 struct qeth_ipaddr *ipaddr;
8271 unsigned long flags;
8272 int rc = 0;
8273
8274 ipaddr = qeth_get_addr_buffer(proto);
8275 if (ipaddr){
8276 if (proto == QETH_PROT_IPV4){
8277 QETH_DBF_TEXT(trace, 2, "addrxip4");
8278 memcpy(&ipaddr->u.a4.addr, addr, 4);
8279 ipaddr->u.a4.mask = 0;
8280 #ifdef CONFIG_QETH_IPV6
8281 } else if (proto == QETH_PROT_IPV6){
8282 QETH_DBF_TEXT(trace, 2, "addrxip6");
8283 memcpy(&ipaddr->u.a6.addr, addr, 16);
8284 ipaddr->u.a6.pfxlen = 0;
8285 #endif
8286 }
8287 ipaddr->type = QETH_IP_TYPE_RXIP;
8288 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8289 ipaddr->del_flags = 0;
8290 } else
8291 return -ENOMEM;
8292 spin_lock_irqsave(&card->ip_lock, flags);
8293 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8294 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8295 rc = -EEXIST;
8296 spin_unlock_irqrestore(&card->ip_lock, flags);
8297 if (rc){
8298 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8299 return rc;
8300 }
8301 if (!qeth_add_ip(card, ipaddr))
8302 kfree(ipaddr);
8303 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8304 schedule_work(&card->kernel_thread_starter);
8305 return 0;
8306 }
8307
8308 void
8309 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8310 const u8 *addr)
8311 {
8312 struct qeth_ipaddr *ipaddr;
8313
8314 ipaddr = qeth_get_addr_buffer(proto);
8315 if (ipaddr){
8316 if (proto == QETH_PROT_IPV4){
8317 QETH_DBF_TEXT(trace, 2, "addrxip4");
8318 memcpy(&ipaddr->u.a4.addr, addr, 4);
8319 ipaddr->u.a4.mask = 0;
8320 #ifdef CONFIG_QETH_IPV6
8321 } else if (proto == QETH_PROT_IPV6){
8322 QETH_DBF_TEXT(trace, 2, "addrxip6");
8323 memcpy(&ipaddr->u.a6.addr, addr, 16);
8324 ipaddr->u.a6.pfxlen = 0;
8325 #endif
8326 }
8327 ipaddr->type = QETH_IP_TYPE_RXIP;
8328 } else
8329 return;
8330 if (!qeth_delete_ip(card, ipaddr))
8331 kfree(ipaddr);
8332 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8333 schedule_work(&card->kernel_thread_starter);
8334 }
8335
8336 /**
8337 * IP event handler
8338 */
8339 static int
8340 qeth_ip_event(struct notifier_block *this,
8341 unsigned long event,void *ptr)
8342 {
8343 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8344 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8345 struct qeth_ipaddr *addr;
8346 struct qeth_card *card;
8347
8348 QETH_DBF_TEXT(trace,3,"ipevent");
8349 card = qeth_get_card_from_dev(dev);
8350 if (!card)
8351 return NOTIFY_DONE;
8352 if (card->options.layer2)
8353 return NOTIFY_DONE;
8354
8355 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8356 if (addr != NULL) {
8357 addr->u.a4.addr = ifa->ifa_address;
8358 addr->u.a4.mask = ifa->ifa_mask;
8359 addr->type = QETH_IP_TYPE_NORMAL;
8360 } else
8361 goto out;
8362
8363 switch(event) {
8364 case NETDEV_UP:
8365 if (!qeth_add_ip(card, addr))
8366 kfree(addr);
8367 break;
8368 case NETDEV_DOWN:
8369 if (!qeth_delete_ip(card, addr))
8370 kfree(addr);
8371 break;
8372 default:
8373 break;
8374 }
8375 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8376 schedule_work(&card->kernel_thread_starter);
8377 out:
8378 return NOTIFY_DONE;
8379 }
8380
8381 static struct notifier_block qeth_ip_notifier = {
8382 qeth_ip_event,
8383 0
8384 };
8385
8386 #ifdef CONFIG_QETH_IPV6
8387 /**
8388 * IPv6 event handler
8389 */
8390 static int
8391 qeth_ip6_event(struct notifier_block *this,
8392 unsigned long event,void *ptr)
8393 {
8394
8395 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8396 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8397 struct qeth_ipaddr *addr;
8398 struct qeth_card *card;
8399
8400 QETH_DBF_TEXT(trace,3,"ip6event");
8401
8402 card = qeth_get_card_from_dev(dev);
8403 if (!card)
8404 return NOTIFY_DONE;
8405 if (!qeth_is_supported(card, IPA_IPV6))
8406 return NOTIFY_DONE;
8407
8408 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8409 if (addr != NULL) {
8410 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8411 addr->u.a6.pfxlen = ifa->prefix_len;
8412 addr->type = QETH_IP_TYPE_NORMAL;
8413 } else
8414 goto out;
8415
8416 switch(event) {
8417 case NETDEV_UP:
8418 if (!qeth_add_ip(card, addr))
8419 kfree(addr);
8420 break;
8421 case NETDEV_DOWN:
8422 if (!qeth_delete_ip(card, addr))
8423 kfree(addr);
8424 break;
8425 default:
8426 break;
8427 }
8428 if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8429 schedule_work(&card->kernel_thread_starter);
8430 out:
8431 return NOTIFY_DONE;
8432 }
8433
8434 static struct notifier_block qeth_ip6_notifier = {
8435 qeth_ip6_event,
8436 0
8437 };
8438 #endif
8439
8440 static int
8441 __qeth_reboot_event_card(struct device *dev, void *data)
8442 {
8443 struct qeth_card *card;
8444
8445 card = (struct qeth_card *) dev->driver_data;
8446 qeth_clear_ip_list(card, 0, 0);
8447 qeth_qdio_clear_card(card, 0);
8448 return 0;
8449 }
8450
8451 static int
8452 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8453 {
8454
8455 driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8456 __qeth_reboot_event_card);
8457 return NOTIFY_DONE;
8458 }
8459
8460
8461 static struct notifier_block qeth_reboot_notifier = {
8462 qeth_reboot_event,
8463 0
8464 };
8465
8466 static int
8467 qeth_register_notifiers(void)
8468 {
8469 int r;
8470
8471 QETH_DBF_TEXT(trace,5,"regnotif");
8472 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8473 return r;
8474 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8475 goto out_reboot;
8476 #ifdef CONFIG_QETH_IPV6
8477 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8478 goto out_ipv4;
8479 #endif
8480 return 0;
8481
8482 #ifdef CONFIG_QETH_IPV6
8483 out_ipv4:
8484 unregister_inetaddr_notifier(&qeth_ip_notifier);
8485 #endif
8486 out_reboot:
8487 unregister_reboot_notifier(&qeth_reboot_notifier);
8488 return r;
8489 }
8490
8491 /**
8492 * unregister all event notifiers
8493 */
8494 static void
8495 qeth_unregister_notifiers(void)
8496 {
8497
8498 QETH_DBF_TEXT(trace,5,"unregnot");
8499 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8500 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8501 #ifdef CONFIG_QETH_IPV6
8502 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8503 #endif /* QETH_IPV6 */
8504
8505 }
8506
8507 #ifdef CONFIG_QETH_IPV6
8508 static int
8509 qeth_ipv6_init(void)
8510 {
8511 qeth_old_arp_constructor = arp_tbl.constructor;
8512 write_lock(&arp_tbl.lock);
8513 arp_tbl.constructor = qeth_arp_constructor;
8514 write_unlock(&arp_tbl.lock);
8515
8516 arp_direct_ops = (struct neigh_ops*)
8517 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8518 if (!arp_direct_ops)
8519 return -ENOMEM;
8520
8521 memcpy(arp_direct_ops, &arp_direct_ops_template,
8522 sizeof(struct neigh_ops));
8523
8524 return 0;
8525 }
8526
8527 static void
8528 qeth_ipv6_uninit(void)
8529 {
8530 write_lock(&arp_tbl.lock);
8531 arp_tbl.constructor = qeth_old_arp_constructor;
8532 write_unlock(&arp_tbl.lock);
8533 kfree(arp_direct_ops);
8534 }
8535 #endif /* CONFIG_QETH_IPV6 */
8536
8537 static void
8538 qeth_sysfs_unregister(void)
8539 {
8540 qeth_remove_driver_attributes();
8541 ccw_driver_unregister(&qeth_ccw_driver);
8542 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8543 s390_root_dev_unregister(qeth_root_dev);
8544 }
8545 /**
8546 * register qeth at sysfs
8547 */
8548 static int
8549 qeth_sysfs_register(void)
8550 {
8551 int rc=0;
8552
8553 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8554 if (rc)
8555 return rc;
8556 rc = ccw_driver_register(&qeth_ccw_driver);
8557 if (rc)
8558 return rc;
8559 rc = qeth_create_driver_attributes();
8560 if (rc)
8561 return rc;
8562 qeth_root_dev = s390_root_dev_register("qeth");
8563 if (IS_ERR(qeth_root_dev)) {
8564 rc = PTR_ERR(qeth_root_dev);
8565 return rc;
8566 }
8567 return 0;
8568 }
8569
8570 /***
8571 * init function
8572 */
8573 static int __init
8574 qeth_init(void)
8575 {
8576 int rc=0;
8577
8578 PRINT_INFO("loading %s\n", version);
8579
8580 INIT_LIST_HEAD(&qeth_card_list.list);
8581 INIT_LIST_HEAD(&qeth_notify_list);
8582 spin_lock_init(&qeth_notify_lock);
8583 rwlock_init(&qeth_card_list.rwlock);
8584
8585 if (qeth_register_dbf_views())
8586 goto out_err;
8587 if (qeth_sysfs_register())
8588 goto out_sysfs;
8589
8590 #ifdef CONFIG_QETH_IPV6
8591 if (qeth_ipv6_init()) {
8592 PRINT_ERR("Out of memory during ipv6 init.\n");
8593 goto out_sysfs;
8594 }
8595 #endif /* QETH_IPV6 */
8596 if (qeth_register_notifiers())
8597 goto out_ipv6;
8598 if (qeth_create_procfs_entries())
8599 goto out_notifiers;
8600
8601 return rc;
8602
8603 out_notifiers:
8604 qeth_unregister_notifiers();
8605 out_ipv6:
8606 #ifdef CONFIG_QETH_IPV6
8607 qeth_ipv6_uninit();
8608 #endif /* QETH_IPV6 */
8609 out_sysfs:
8610 qeth_sysfs_unregister();
8611 qeth_unregister_dbf_views();
8612 out_err:
8613 PRINT_ERR("Initialization failed");
8614 return rc;
8615 }
8616
8617 static void
8618 __exit qeth_exit(void)
8619 {
8620 struct qeth_card *card, *tmp;
8621 unsigned long flags;
8622
8623 QETH_DBF_TEXT(trace,1, "cleanup.");
8624
8625 /*
8626 * Weed would not need to clean up our devices here, because the
8627 * common device layer calls qeth_remove_device for each device
8628 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8629 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8630 * qeth_remove_device called by the common device layer would otherwise
8631 * do a "hard" shutdown (card->use_hard_stop is set to one in
8632 * qeth_remove_device).
8633 */
8634 again:
8635 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8636 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8637 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8638 qeth_set_offline(card->gdev);
8639 qeth_remove_device(card->gdev);
8640 goto again;
8641 }
8642 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8643 #ifdef CONFIG_QETH_IPV6
8644 qeth_ipv6_uninit();
8645 #endif
8646 qeth_unregister_notifiers();
8647 qeth_remove_procfs_entries();
8648 qeth_sysfs_unregister();
8649 qeth_unregister_dbf_views();
8650 printk("qeth: removed\n");
8651 }
8652
8653 EXPORT_SYMBOL(qeth_osn_register);
8654 EXPORT_SYMBOL(qeth_osn_deregister);
8655 EXPORT_SYMBOL(qeth_osn_assist);
8656 module_init(qeth_init);
8657 module_exit(qeth_exit);
8658 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8659 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8660 "Copyright 2000,2003 IBM Corporation\n");
8661
8662 MODULE_LICENSE("GPL");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree