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[NET]: Move hardware header operations out of netdevice.
[deliverable/linux.git] / drivers / s390 / net / qeth_main.c
1 /*
2 * linux/drivers/s390/net/qeth_main.c
3 *
4 * Linux on zSeries OSA Express and HiperSockets support
5 *
6 * Copyright 2000,2003 IBM Corporation
7 *
8 * Author(s): Original Code written by
9 * Utz Bacher (utz.bacher@de.ibm.com)
10 * Rewritten by
11 * Frank Pavlic (fpavlic@de.ibm.com) and
12 * Thomas Spatzier <tspat@de.ibm.com>
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
29
30 #include <linux/module.h>
31 #include <linux/moduleparam.h>
32 #include <linux/string.h>
33 #include <linux/errno.h>
34 #include <linux/mm.h>
35 #include <linux/ip.h>
36 #include <linux/inetdevice.h>
37 #include <linux/netdevice.h>
38 #include <linux/sched.h>
39 #include <linux/workqueue.h>
40 #include <linux/kernel.h>
41 #include <linux/slab.h>
42 #include <linux/interrupt.h>
43 #include <linux/tcp.h>
44 #include <linux/icmp.h>
45 #include <linux/skbuff.h>
46 #include <linux/in.h>
47 #include <linux/igmp.h>
48 #include <linux/init.h>
49 #include <linux/reboot.h>
50 #include <linux/mii.h>
51 #include <linux/rcupdate.h>
52 #include <linux/ethtool.h>
53
54 #include <net/arp.h>
55 #include <net/ip.h>
56 #include <net/route.h>
57
58 #include <asm/ebcdic.h>
59 #include <asm/io.h>
60 #include <asm/qeth.h>
61 #include <asm/timex.h>
62 #include <asm/semaphore.h>
63 #include <asm/uaccess.h>
64 #include <asm/s390_rdev.h>
65
66 #include "qeth.h"
67 #include "qeth_mpc.h"
68 #include "qeth_fs.h"
69 #include "qeth_eddp.h"
70 #include "qeth_tso.h"
71
72 static const char *version = "qeth S/390 OSA-Express driver";
73
74 /**
75 * Debug Facility Stuff
76 */
77 static debug_info_t *qeth_dbf_setup = NULL;
78 static debug_info_t *qeth_dbf_data = NULL;
79 static debug_info_t *qeth_dbf_misc = NULL;
80 static debug_info_t *qeth_dbf_control = NULL;
81 debug_info_t *qeth_dbf_trace = NULL;
82 static debug_info_t *qeth_dbf_sense = NULL;
83 static debug_info_t *qeth_dbf_qerr = NULL;
84
85 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
86
87 static struct lock_class_key qdio_out_skb_queue_key;
88
89 /**
90 * some more definitions and declarations
91 */
92 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
93
94 /* list of our cards */
95 struct qeth_card_list_struct qeth_card_list;
96 /*process list want to be notified*/
97 spinlock_t qeth_notify_lock;
98 struct list_head qeth_notify_list;
99
100 static void qeth_send_control_data_cb(struct qeth_channel *,
101 struct qeth_cmd_buffer *);
102
103 /**
104 * here we go with function implementation
105 */
106 static void
107 qeth_init_qdio_info(struct qeth_card *card);
108
109 static int
110 qeth_init_qdio_queues(struct qeth_card *card);
111
112 static int
113 qeth_alloc_qdio_buffers(struct qeth_card *card);
114
115 static void
116 qeth_free_qdio_buffers(struct qeth_card *);
117
118 static void
119 qeth_clear_qdio_buffers(struct qeth_card *);
120
121 static void
122 qeth_clear_ip_list(struct qeth_card *, int, int);
123
124 static void
125 qeth_clear_ipacmd_list(struct qeth_card *);
126
127 static int
128 qeth_qdio_clear_card(struct qeth_card *, int);
129
130 static void
131 qeth_clear_working_pool_list(struct qeth_card *);
132
133 static void
134 qeth_clear_cmd_buffers(struct qeth_channel *);
135
136 static int
137 qeth_stop(struct net_device *);
138
139 static void
140 qeth_clear_ipato_list(struct qeth_card *);
141
142 static int
143 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
144
145 static void
146 qeth_irq_tasklet(unsigned long);
147
148 static int
149 qeth_set_online(struct ccwgroup_device *);
150
151 static int
152 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
153
154 static struct qeth_ipaddr *
155 qeth_get_addr_buffer(enum qeth_prot_versions);
156
157 static void
158 qeth_set_multicast_list(struct net_device *);
159
160 static void
161 qeth_setadp_promisc_mode(struct qeth_card *);
162
163 static int
164 qeth_hard_header_parse(const struct sk_buff *skb, unsigned char *haddr);
165
166 static void
167 qeth_notify_processes(void)
168 {
169 /*notify all registered processes */
170 struct qeth_notify_list_struct *n_entry;
171
172 QETH_DBF_TEXT(trace,3,"procnoti");
173 spin_lock(&qeth_notify_lock);
174 list_for_each_entry(n_entry, &qeth_notify_list, list) {
175 send_sig(n_entry->signum, n_entry->task, 1);
176 }
177 spin_unlock(&qeth_notify_lock);
178
179 }
180 int
181 qeth_notifier_unregister(struct task_struct *p)
182 {
183 struct qeth_notify_list_struct *n_entry, *tmp;
184
185 QETH_DBF_TEXT(trace, 2, "notunreg");
186 spin_lock(&qeth_notify_lock);
187 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
188 if (n_entry->task == p) {
189 list_del(&n_entry->list);
190 kfree(n_entry);
191 goto out;
192 }
193 }
194 out:
195 spin_unlock(&qeth_notify_lock);
196 return 0;
197 }
198 int
199 qeth_notifier_register(struct task_struct *p, int signum)
200 {
201 struct qeth_notify_list_struct *n_entry;
202
203 /*check first if entry already exists*/
204 spin_lock(&qeth_notify_lock);
205 list_for_each_entry(n_entry, &qeth_notify_list, list) {
206 if (n_entry->task == p) {
207 n_entry->signum = signum;
208 spin_unlock(&qeth_notify_lock);
209 return 0;
210 }
211 }
212 spin_unlock(&qeth_notify_lock);
213
214 n_entry = (struct qeth_notify_list_struct *)
215 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
216 if (!n_entry)
217 return -ENOMEM;
218 n_entry->task = p;
219 n_entry->signum = signum;
220 spin_lock(&qeth_notify_lock);
221 list_add(&n_entry->list,&qeth_notify_list);
222 spin_unlock(&qeth_notify_lock);
223 return 0;
224 }
225
226
227 /**
228 * free channel command buffers
229 */
230 static void
231 qeth_clean_channel(struct qeth_channel *channel)
232 {
233 int cnt;
234
235 QETH_DBF_TEXT(setup, 2, "freech");
236 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
237 kfree(channel->iob[cnt].data);
238 }
239
240 /**
241 * free card
242 */
243 static void
244 qeth_free_card(struct qeth_card *card)
245 {
246
247 QETH_DBF_TEXT(setup, 2, "freecrd");
248 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
249 qeth_clean_channel(&card->read);
250 qeth_clean_channel(&card->write);
251 if (card->dev)
252 free_netdev(card->dev);
253 qeth_clear_ip_list(card, 0, 0);
254 qeth_clear_ipato_list(card);
255 kfree(card->ip_tbd_list);
256 qeth_free_qdio_buffers(card);
257 kfree(card);
258 }
259
260 /**
261 * alloc memory for command buffer per channel
262 */
263 static int
264 qeth_setup_channel(struct qeth_channel *channel)
265 {
266 int cnt;
267
268 QETH_DBF_TEXT(setup, 2, "setupch");
269 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
270 channel->iob[cnt].data = (char *)
271 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
272 if (channel->iob[cnt].data == NULL)
273 break;
274 channel->iob[cnt].state = BUF_STATE_FREE;
275 channel->iob[cnt].channel = channel;
276 channel->iob[cnt].callback = qeth_send_control_data_cb;
277 channel->iob[cnt].rc = 0;
278 }
279 if (cnt < QETH_CMD_BUFFER_NO) {
280 while (cnt-- > 0)
281 kfree(channel->iob[cnt].data);
282 return -ENOMEM;
283 }
284 channel->buf_no = 0;
285 channel->io_buf_no = 0;
286 atomic_set(&channel->irq_pending, 0);
287 spin_lock_init(&channel->iob_lock);
288
289 init_waitqueue_head(&channel->wait_q);
290 channel->irq_tasklet.data = (unsigned long) channel;
291 channel->irq_tasklet.func = qeth_irq_tasklet;
292 return 0;
293 }
294
295 /**
296 * alloc memory for card structure
297 */
298 static struct qeth_card *
299 qeth_alloc_card(void)
300 {
301 struct qeth_card *card;
302
303 QETH_DBF_TEXT(setup, 2, "alloccrd");
304 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
305 if (!card)
306 return NULL;
307 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
308 if (qeth_setup_channel(&card->read)) {
309 kfree(card);
310 return NULL;
311 }
312 if (qeth_setup_channel(&card->write)) {
313 qeth_clean_channel(&card->read);
314 kfree(card);
315 return NULL;
316 }
317 return card;
318 }
319
320 static long
321 __qeth_check_irb_error(struct ccw_device *cdev, unsigned long intparm,
322 struct irb *irb)
323 {
324 if (!IS_ERR(irb))
325 return 0;
326
327 switch (PTR_ERR(irb)) {
328 case -EIO:
329 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
330 QETH_DBF_TEXT(trace, 2, "ckirberr");
331 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
332 break;
333 case -ETIMEDOUT:
334 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
335 QETH_DBF_TEXT(trace, 2, "ckirberr");
336 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
337 if (intparm == QETH_RCD_PARM) {
338 struct qeth_card *card = CARD_FROM_CDEV(cdev);
339
340 if (card && (card->data.ccwdev == cdev)) {
341 card->data.state = CH_STATE_DOWN;
342 wake_up(&card->wait_q);
343 }
344 }
345 break;
346 default:
347 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
348 cdev->dev.bus_id);
349 QETH_DBF_TEXT(trace, 2, "ckirberr");
350 QETH_DBF_TEXT(trace, 2, " rc???");
351 }
352 return PTR_ERR(irb);
353 }
354
355 static int
356 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
357 {
358 int dstat,cstat;
359 char *sense;
360
361 sense = (char *) irb->ecw;
362 cstat = irb->scsw.cstat;
363 dstat = irb->scsw.dstat;
364
365 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
366 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
367 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
368 QETH_DBF_TEXT(trace,2, "CGENCHK");
369 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
370 cdev->dev.bus_id, dstat, cstat);
371 HEXDUMP16(WARN, "irb: ", irb);
372 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
373 return 1;
374 }
375
376 if (dstat & DEV_STAT_UNIT_CHECK) {
377 if (sense[SENSE_RESETTING_EVENT_BYTE] &
378 SENSE_RESETTING_EVENT_FLAG) {
379 QETH_DBF_TEXT(trace,2,"REVIND");
380 return 1;
381 }
382 if (sense[SENSE_COMMAND_REJECT_BYTE] &
383 SENSE_COMMAND_REJECT_FLAG) {
384 QETH_DBF_TEXT(trace,2,"CMDREJi");
385 return 0;
386 }
387 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
388 QETH_DBF_TEXT(trace,2,"AFFE");
389 return 1;
390 }
391 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
392 QETH_DBF_TEXT(trace,2,"ZEROSEN");
393 return 0;
394 }
395 QETH_DBF_TEXT(trace,2,"DGENCHK");
396 return 1;
397 }
398 return 0;
399 }
400 static int qeth_issue_next_read(struct qeth_card *);
401
402 /**
403 * interrupt handler
404 */
405 static void
406 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
407 {
408 int rc;
409 int cstat,dstat;
410 struct qeth_cmd_buffer *buffer;
411 struct qeth_channel *channel;
412 struct qeth_card *card;
413
414 QETH_DBF_TEXT(trace,5,"irq");
415
416 if (__qeth_check_irb_error(cdev, intparm, irb))
417 return;
418 cstat = irb->scsw.cstat;
419 dstat = irb->scsw.dstat;
420
421 card = CARD_FROM_CDEV(cdev);
422 if (!card)
423 return;
424
425 if (card->read.ccwdev == cdev){
426 channel = &card->read;
427 QETH_DBF_TEXT(trace,5,"read");
428 } else if (card->write.ccwdev == cdev) {
429 channel = &card->write;
430 QETH_DBF_TEXT(trace,5,"write");
431 } else {
432 channel = &card->data;
433 QETH_DBF_TEXT(trace,5,"data");
434 }
435 atomic_set(&channel->irq_pending, 0);
436
437 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
438 channel->state = CH_STATE_STOPPED;
439
440 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
441 channel->state = CH_STATE_HALTED;
442
443 /*let's wake up immediately on data channel*/
444 if ((channel == &card->data) && (intparm != 0) &&
445 (intparm != QETH_RCD_PARM))
446 goto out;
447
448 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
449 QETH_DBF_TEXT(trace, 6, "clrchpar");
450 /* we don't have to handle this further */
451 intparm = 0;
452 }
453 if (intparm == QETH_HALT_CHANNEL_PARM) {
454 QETH_DBF_TEXT(trace, 6, "hltchpar");
455 /* we don't have to handle this further */
456 intparm = 0;
457 }
458 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
459 (dstat & DEV_STAT_UNIT_CHECK) ||
460 (cstat)) {
461 if (irb->esw.esw0.erw.cons) {
462 /* TODO: we should make this s390dbf */
463 PRINT_WARN("sense data available on channel %s.\n",
464 CHANNEL_ID(channel));
465 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
466 HEXDUMP16(WARN,"irb: ",irb);
467 HEXDUMP16(WARN,"sense data: ",irb->ecw);
468 }
469 if (intparm == QETH_RCD_PARM) {
470 channel->state = CH_STATE_DOWN;
471 goto out;
472 }
473 rc = qeth_get_problem(cdev,irb);
474 if (rc) {
475 qeth_schedule_recovery(card);
476 goto out;
477 }
478 }
479
480 if (intparm == QETH_RCD_PARM) {
481 channel->state = CH_STATE_RCD_DONE;
482 goto out;
483 }
484 if (intparm) {
485 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
486 buffer->state = BUF_STATE_PROCESSED;
487 }
488 if (channel == &card->data)
489 return;
490
491 if (channel == &card->read &&
492 channel->state == CH_STATE_UP)
493 qeth_issue_next_read(card);
494
495 qeth_irq_tasklet((unsigned long)channel);
496 return;
497 out:
498 wake_up(&card->wait_q);
499 }
500
501 /**
502 * tasklet function scheduled from irq handler
503 */
504 static void
505 qeth_irq_tasklet(unsigned long data)
506 {
507 struct qeth_card *card;
508 struct qeth_channel *channel;
509 struct qeth_cmd_buffer *iob;
510 __u8 index;
511
512 QETH_DBF_TEXT(trace,5,"irqtlet");
513 channel = (struct qeth_channel *) data;
514 iob = channel->iob;
515 index = channel->buf_no;
516 card = CARD_FROM_CDEV(channel->ccwdev);
517 while (iob[index].state == BUF_STATE_PROCESSED) {
518 if (iob[index].callback !=NULL) {
519 iob[index].callback(channel,iob + index);
520 }
521 index = (index + 1) % QETH_CMD_BUFFER_NO;
522 }
523 channel->buf_no = index;
524 wake_up(&card->wait_q);
525 }
526
527 static int qeth_stop_card(struct qeth_card *, int);
528
529 static int
530 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
531 {
532 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
533 int rc = 0, rc2 = 0, rc3 = 0;
534 enum qeth_card_states recover_flag;
535
536 QETH_DBF_TEXT(setup, 3, "setoffl");
537 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
538
539 if (card->dev && netif_carrier_ok(card->dev))
540 netif_carrier_off(card->dev);
541 recover_flag = card->state;
542 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
543 PRINT_WARN("Stopping card %s interrupted by user!\n",
544 CARD_BUS_ID(card));
545 return -ERESTARTSYS;
546 }
547 rc = ccw_device_set_offline(CARD_DDEV(card));
548 rc2 = ccw_device_set_offline(CARD_WDEV(card));
549 rc3 = ccw_device_set_offline(CARD_RDEV(card));
550 if (!rc)
551 rc = (rc2) ? rc2 : rc3;
552 if (rc)
553 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
554 if (recover_flag == CARD_STATE_UP)
555 card->state = CARD_STATE_RECOVER;
556 qeth_notify_processes();
557 return 0;
558 }
559
560 static int
561 qeth_set_offline(struct ccwgroup_device *cgdev)
562 {
563 return __qeth_set_offline(cgdev, 0);
564 }
565
566 static int
567 qeth_threads_running(struct qeth_card *card, unsigned long threads);
568
569
570 static void
571 qeth_remove_device(struct ccwgroup_device *cgdev)
572 {
573 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
574 unsigned long flags;
575
576 QETH_DBF_TEXT(setup, 3, "rmdev");
577 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
578
579 if (!card)
580 return;
581
582 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
583
584 if (cgdev->state == CCWGROUP_ONLINE){
585 card->use_hard_stop = 1;
586 qeth_set_offline(cgdev);
587 }
588 /* remove form our internal list */
589 write_lock_irqsave(&qeth_card_list.rwlock, flags);
590 list_del(&card->list);
591 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
592 if (card->dev)
593 unregister_netdev(card->dev);
594 qeth_remove_device_attributes(&cgdev->dev);
595 qeth_free_card(card);
596 cgdev->dev.driver_data = NULL;
597 put_device(&cgdev->dev);
598 }
599
600 static int
601 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
602 static int
603 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
604
605 /**
606 * Add/remove address to/from card's ip list, i.e. try to add or remove
607 * reference to/from an IP address that is already registered on the card.
608 * Returns:
609 * 0 address was on card and its reference count has been adjusted,
610 * but is still > 0, so nothing has to be done
611 * also returns 0 if card was not on card and the todo was to delete
612 * the address -> there is also nothing to be done
613 * 1 address was not on card and the todo is to add it to the card's ip
614 * list
615 * -1 address was on card and its reference count has been decremented
616 * to <= 0 by the todo -> address must be removed from card
617 */
618 static int
619 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
620 struct qeth_ipaddr **__addr)
621 {
622 struct qeth_ipaddr *addr;
623 int found = 0;
624
625 list_for_each_entry(addr, &card->ip_list, entry) {
626 if (card->options.layer2) {
627 if ((addr->type == todo->type) &&
628 (memcmp(&addr->mac, &todo->mac,
629 OSA_ADDR_LEN) == 0)) {
630 found = 1;
631 break;
632 }
633 continue;
634 }
635 if ((addr->proto == QETH_PROT_IPV4) &&
636 (todo->proto == QETH_PROT_IPV4) &&
637 (addr->type == todo->type) &&
638 (addr->u.a4.addr == todo->u.a4.addr) &&
639 (addr->u.a4.mask == todo->u.a4.mask)) {
640 found = 1;
641 break;
642 }
643 if ((addr->proto == QETH_PROT_IPV6) &&
644 (todo->proto == QETH_PROT_IPV6) &&
645 (addr->type == todo->type) &&
646 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
647 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
648 sizeof(struct in6_addr)) == 0)) {
649 found = 1;
650 break;
651 }
652 }
653 if (found) {
654 addr->users += todo->users;
655 if (addr->users <= 0){
656 *__addr = addr;
657 return -1;
658 } else {
659 /* for VIPA and RXIP limit refcount to 1 */
660 if (addr->type != QETH_IP_TYPE_NORMAL)
661 addr->users = 1;
662 return 0;
663 }
664 }
665 if (todo->users > 0) {
666 /* for VIPA and RXIP limit refcount to 1 */
667 if (todo->type != QETH_IP_TYPE_NORMAL)
668 todo->users = 1;
669 return 1;
670 } else
671 return 0;
672 }
673
674 static int
675 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
676 int same_type)
677 {
678 struct qeth_ipaddr *tmp;
679
680 list_for_each_entry(tmp, list, entry) {
681 if ((tmp->proto == QETH_PROT_IPV4) &&
682 (addr->proto == QETH_PROT_IPV4) &&
683 ((same_type && (tmp->type == addr->type)) ||
684 (!same_type && (tmp->type != addr->type)) ) &&
685 (tmp->u.a4.addr == addr->u.a4.addr) ){
686 return 1;
687 }
688 if ((tmp->proto == QETH_PROT_IPV6) &&
689 (addr->proto == QETH_PROT_IPV6) &&
690 ((same_type && (tmp->type == addr->type)) ||
691 (!same_type && (tmp->type != addr->type)) ) &&
692 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
693 sizeof(struct in6_addr)) == 0) ) {
694 return 1;
695 }
696 }
697 return 0;
698 }
699
700 /*
701 * Add IP to be added to todo list. If there is already an "add todo"
702 * in this list we just incremenent the reference count.
703 * Returns 0 if we just incremented reference count.
704 */
705 static int
706 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
707 {
708 struct qeth_ipaddr *tmp, *t;
709 int found = 0;
710
711 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
712 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
713 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
714 return 0;
715 if (card->options.layer2) {
716 if ((tmp->type == addr->type) &&
717 (tmp->is_multicast == addr->is_multicast) &&
718 (memcmp(&tmp->mac, &addr->mac,
719 OSA_ADDR_LEN) == 0)) {
720 found = 1;
721 break;
722 }
723 continue;
724 }
725 if ((tmp->proto == QETH_PROT_IPV4) &&
726 (addr->proto == QETH_PROT_IPV4) &&
727 (tmp->type == addr->type) &&
728 (tmp->is_multicast == addr->is_multicast) &&
729 (tmp->u.a4.addr == addr->u.a4.addr) &&
730 (tmp->u.a4.mask == addr->u.a4.mask)) {
731 found = 1;
732 break;
733 }
734 if ((tmp->proto == QETH_PROT_IPV6) &&
735 (addr->proto == QETH_PROT_IPV6) &&
736 (tmp->type == addr->type) &&
737 (tmp->is_multicast == addr->is_multicast) &&
738 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
739 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
740 sizeof(struct in6_addr)) == 0)) {
741 found = 1;
742 break;
743 }
744 }
745 if (found){
746 if (addr->users != 0)
747 tmp->users += addr->users;
748 else
749 tmp->users += add? 1:-1;
750 if (tmp->users == 0) {
751 list_del(&tmp->entry);
752 kfree(tmp);
753 }
754 return 0;
755 } else {
756 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
757 list_add(&addr->entry, card->ip_tbd_list);
758 else {
759 if (addr->users == 0)
760 addr->users += add? 1:-1;
761 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
762 qeth_is_addr_covered_by_ipato(card, addr)){
763 QETH_DBF_TEXT(trace, 2, "tkovaddr");
764 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
765 }
766 list_add_tail(&addr->entry, card->ip_tbd_list);
767 }
768 return 1;
769 }
770 }
771
772 /**
773 * Remove IP address from list
774 */
775 static int
776 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
777 {
778 unsigned long flags;
779 int rc = 0;
780
781 QETH_DBF_TEXT(trace, 4, "delip");
782
783 if (card->options.layer2)
784 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
785 else if (addr->proto == QETH_PROT_IPV4)
786 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
787 else {
788 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
789 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
790 }
791 spin_lock_irqsave(&card->ip_lock, flags);
792 rc = __qeth_insert_ip_todo(card, addr, 0);
793 spin_unlock_irqrestore(&card->ip_lock, flags);
794 return rc;
795 }
796
797 static int
798 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
799 {
800 unsigned long flags;
801 int rc = 0;
802
803 QETH_DBF_TEXT(trace, 4, "addip");
804 if (card->options.layer2)
805 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
806 else if (addr->proto == QETH_PROT_IPV4)
807 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
808 else {
809 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
810 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
811 }
812 spin_lock_irqsave(&card->ip_lock, flags);
813 rc = __qeth_insert_ip_todo(card, addr, 1);
814 spin_unlock_irqrestore(&card->ip_lock, flags);
815 return rc;
816 }
817
818 static void
819 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
820 {
821 struct qeth_ipaddr *addr, *tmp;
822 int rc;
823 again:
824 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
825 if (addr->is_multicast) {
826 spin_unlock_irqrestore(&card->ip_lock, *flags);
827 rc = qeth_deregister_addr_entry(card, addr);
828 spin_lock_irqsave(&card->ip_lock, *flags);
829 if (!rc) {
830 list_del(&addr->entry);
831 kfree(addr);
832 goto again;
833 }
834 }
835 }
836 }
837
838 static void
839 qeth_set_ip_addr_list(struct qeth_card *card)
840 {
841 struct list_head *tbd_list;
842 struct qeth_ipaddr *todo, *addr;
843 unsigned long flags;
844 int rc;
845
846 QETH_DBF_TEXT(trace, 2, "sdiplist");
847 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
848
849 spin_lock_irqsave(&card->ip_lock, flags);
850 tbd_list = card->ip_tbd_list;
851 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
852 if (!card->ip_tbd_list) {
853 QETH_DBF_TEXT(trace, 0, "silnomem");
854 card->ip_tbd_list = tbd_list;
855 spin_unlock_irqrestore(&card->ip_lock, flags);
856 return;
857 } else
858 INIT_LIST_HEAD(card->ip_tbd_list);
859
860 while (!list_empty(tbd_list)){
861 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
862 list_del(&todo->entry);
863 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
864 __qeth_delete_all_mc(card, &flags);
865 kfree(todo);
866 continue;
867 }
868 rc = __qeth_ref_ip_on_card(card, todo, &addr);
869 if (rc == 0) {
870 /* nothing to be done; only adjusted refcount */
871 kfree(todo);
872 } else if (rc == 1) {
873 /* new entry to be added to on-card list */
874 spin_unlock_irqrestore(&card->ip_lock, flags);
875 rc = qeth_register_addr_entry(card, todo);
876 spin_lock_irqsave(&card->ip_lock, flags);
877 if (!rc)
878 list_add_tail(&todo->entry, &card->ip_list);
879 else
880 kfree(todo);
881 } else if (rc == -1) {
882 /* on-card entry to be removed */
883 list_del_init(&addr->entry);
884 spin_unlock_irqrestore(&card->ip_lock, flags);
885 rc = qeth_deregister_addr_entry(card, addr);
886 spin_lock_irqsave(&card->ip_lock, flags);
887 if (!rc)
888 kfree(addr);
889 else
890 list_add_tail(&addr->entry, &card->ip_list);
891 kfree(todo);
892 }
893 }
894 spin_unlock_irqrestore(&card->ip_lock, flags);
895 kfree(tbd_list);
896 }
897
898 static void qeth_delete_mc_addresses(struct qeth_card *);
899 static void qeth_add_multicast_ipv4(struct qeth_card *);
900 static void qeth_layer2_add_multicast(struct qeth_card *);
901 #ifdef CONFIG_QETH_IPV6
902 static void qeth_add_multicast_ipv6(struct qeth_card *);
903 #endif
904
905 static int
906 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
907 {
908 unsigned long flags;
909
910 spin_lock_irqsave(&card->thread_mask_lock, flags);
911 if ( !(card->thread_allowed_mask & thread) ||
912 (card->thread_start_mask & thread) ) {
913 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
914 return -EPERM;
915 }
916 card->thread_start_mask |= thread;
917 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
918 return 0;
919 }
920
921 static void
922 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
923 {
924 unsigned long flags;
925
926 spin_lock_irqsave(&card->thread_mask_lock, flags);
927 card->thread_start_mask &= ~thread;
928 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
929 wake_up(&card->wait_q);
930 }
931
932 static void
933 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
934 {
935 unsigned long flags;
936
937 spin_lock_irqsave(&card->thread_mask_lock, flags);
938 card->thread_running_mask &= ~thread;
939 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
940 wake_up(&card->wait_q);
941 }
942
943 static int
944 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
945 {
946 unsigned long flags;
947 int rc = 0;
948
949 spin_lock_irqsave(&card->thread_mask_lock, flags);
950 if (card->thread_start_mask & thread){
951 if ((card->thread_allowed_mask & thread) &&
952 !(card->thread_running_mask & thread)){
953 rc = 1;
954 card->thread_start_mask &= ~thread;
955 card->thread_running_mask |= thread;
956 } else
957 rc = -EPERM;
958 }
959 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
960 return rc;
961 }
962
963 static int
964 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
965 {
966 int rc = 0;
967
968 wait_event(card->wait_q,
969 (rc = __qeth_do_run_thread(card, thread)) >= 0);
970 return rc;
971 }
972
973 static int
974 qeth_recover(void *ptr)
975 {
976 struct qeth_card *card;
977 int rc = 0;
978
979 card = (struct qeth_card *) ptr;
980 daemonize("qeth_recover");
981 QETH_DBF_TEXT(trace,2,"recover1");
982 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
983 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
984 return 0;
985 QETH_DBF_TEXT(trace,2,"recover2");
986 PRINT_WARN("Recovery of device %s started ...\n",
987 CARD_BUS_ID(card));
988 card->use_hard_stop = 1;
989 __qeth_set_offline(card->gdev,1);
990 rc = __qeth_set_online(card->gdev,1);
991 /* don't run another scheduled recovery */
992 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
993 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
994 if (!rc)
995 PRINT_INFO("Device %s successfully recovered!\n",
996 CARD_BUS_ID(card));
997 else
998 PRINT_INFO("Device %s could not be recovered!\n",
999 CARD_BUS_ID(card));
1000 return 0;
1001 }
1002
1003 void
1004 qeth_schedule_recovery(struct qeth_card *card)
1005 {
1006 QETH_DBF_TEXT(trace,2,"startrec");
1007 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1008 schedule_work(&card->kernel_thread_starter);
1009 }
1010
1011 static int
1012 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1013 {
1014 unsigned long flags;
1015 int rc = 0;
1016
1017 spin_lock_irqsave(&card->thread_mask_lock, flags);
1018 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1019 (u8) card->thread_start_mask,
1020 (u8) card->thread_allowed_mask,
1021 (u8) card->thread_running_mask);
1022 rc = (card->thread_start_mask & thread);
1023 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1024 return rc;
1025 }
1026
1027 static void
1028 qeth_start_kernel_thread(struct work_struct *work)
1029 {
1030 struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1031 QETH_DBF_TEXT(trace , 2, "strthrd");
1032
1033 if (card->read.state != CH_STATE_UP &&
1034 card->write.state != CH_STATE_UP)
1035 return;
1036 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1037 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1038 }
1039
1040
1041 static void
1042 qeth_set_intial_options(struct qeth_card *card)
1043 {
1044 card->options.route4.type = NO_ROUTER;
1045 #ifdef CONFIG_QETH_IPV6
1046 card->options.route6.type = NO_ROUTER;
1047 #endif /* QETH_IPV6 */
1048 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1049 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1050 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1051 card->options.fake_broadcast = 0;
1052 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1053 card->options.fake_ll = 0;
1054 if (card->info.type == QETH_CARD_TYPE_OSN)
1055 card->options.layer2 = 1;
1056 else
1057 card->options.layer2 = 0;
1058 card->options.performance_stats = 0;
1059 card->options.rx_sg_cb = QETH_RX_SG_CB;
1060 }
1061
1062 /**
1063 * initialize channels ,card and all state machines
1064 */
1065 static int
1066 qeth_setup_card(struct qeth_card *card)
1067 {
1068
1069 QETH_DBF_TEXT(setup, 2, "setupcrd");
1070 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1071
1072 card->read.state = CH_STATE_DOWN;
1073 card->write.state = CH_STATE_DOWN;
1074 card->data.state = CH_STATE_DOWN;
1075 card->state = CARD_STATE_DOWN;
1076 card->lan_online = 0;
1077 card->use_hard_stop = 0;
1078 card->dev = NULL;
1079 #ifdef CONFIG_QETH_VLAN
1080 spin_lock_init(&card->vlanlock);
1081 card->vlangrp = NULL;
1082 #endif
1083 spin_lock_init(&card->lock);
1084 spin_lock_init(&card->ip_lock);
1085 spin_lock_init(&card->thread_mask_lock);
1086 card->thread_start_mask = 0;
1087 card->thread_allowed_mask = 0;
1088 card->thread_running_mask = 0;
1089 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1090 INIT_LIST_HEAD(&card->ip_list);
1091 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1092 if (!card->ip_tbd_list) {
1093 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1094 return -ENOMEM;
1095 }
1096 INIT_LIST_HEAD(card->ip_tbd_list);
1097 INIT_LIST_HEAD(&card->cmd_waiter_list);
1098 init_waitqueue_head(&card->wait_q);
1099 /* intial options */
1100 qeth_set_intial_options(card);
1101 /* IP address takeover */
1102 INIT_LIST_HEAD(&card->ipato.entries);
1103 card->ipato.enabled = 0;
1104 card->ipato.invert4 = 0;
1105 card->ipato.invert6 = 0;
1106 /* init QDIO stuff */
1107 qeth_init_qdio_info(card);
1108 return 0;
1109 }
1110
1111 static int
1112 is_1920_device (struct qeth_card *card)
1113 {
1114 int single_queue = 0;
1115 struct ccw_device *ccwdev;
1116 struct channelPath_dsc {
1117 u8 flags;
1118 u8 lsn;
1119 u8 desc;
1120 u8 chpid;
1121 u8 swla;
1122 u8 zeroes;
1123 u8 chla;
1124 u8 chpp;
1125 } *chp_dsc;
1126
1127 QETH_DBF_TEXT(setup, 2, "chk_1920");
1128
1129 ccwdev = card->data.ccwdev;
1130 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1131 if (chp_dsc != NULL) {
1132 /* CHPP field bit 6 == 1 -> single queue */
1133 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1134 kfree(chp_dsc);
1135 }
1136 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1137 return single_queue;
1138 }
1139
1140 static int
1141 qeth_determine_card_type(struct qeth_card *card)
1142 {
1143 int i = 0;
1144
1145 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1146
1147 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1148 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1149 while (known_devices[i][4]) {
1150 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1151 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1152 card->info.type = known_devices[i][4];
1153 card->qdio.no_out_queues = known_devices[i][8];
1154 card->info.is_multicast_different = known_devices[i][9];
1155 if (is_1920_device(card)) {
1156 PRINT_INFO("Priority Queueing not able "
1157 "due to hardware limitations!\n");
1158 card->qdio.no_out_queues = 1;
1159 card->qdio.default_out_queue = 0;
1160 }
1161 return 0;
1162 }
1163 i++;
1164 }
1165 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1166 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1167 return -ENOENT;
1168 }
1169
1170 static int
1171 qeth_probe_device(struct ccwgroup_device *gdev)
1172 {
1173 struct qeth_card *card;
1174 struct device *dev;
1175 unsigned long flags;
1176 int rc;
1177
1178 QETH_DBF_TEXT(setup, 2, "probedev");
1179
1180 dev = &gdev->dev;
1181 if (!get_device(dev))
1182 return -ENODEV;
1183
1184 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1185
1186 card = qeth_alloc_card();
1187 if (!card) {
1188 put_device(dev);
1189 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1190 return -ENOMEM;
1191 }
1192 card->read.ccwdev = gdev->cdev[0];
1193 card->write.ccwdev = gdev->cdev[1];
1194 card->data.ccwdev = gdev->cdev[2];
1195 gdev->dev.driver_data = card;
1196 card->gdev = gdev;
1197 gdev->cdev[0]->handler = qeth_irq;
1198 gdev->cdev[1]->handler = qeth_irq;
1199 gdev->cdev[2]->handler = qeth_irq;
1200
1201 if ((rc = qeth_determine_card_type(card))){
1202 PRINT_WARN("%s: not a valid card type\n", __func__);
1203 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1204 put_device(dev);
1205 qeth_free_card(card);
1206 return rc;
1207 }
1208 if ((rc = qeth_setup_card(card))){
1209 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1210 put_device(dev);
1211 qeth_free_card(card);
1212 return rc;
1213 }
1214 rc = qeth_create_device_attributes(dev);
1215 if (rc) {
1216 put_device(dev);
1217 qeth_free_card(card);
1218 return rc;
1219 }
1220 /* insert into our internal list */
1221 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1222 list_add_tail(&card->list, &qeth_card_list.list);
1223 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1224 return rc;
1225 }
1226
1227
1228 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1229 int *length)
1230 {
1231 struct ciw *ciw;
1232 char *rcd_buf;
1233 int ret;
1234 struct qeth_channel *channel = &card->data;
1235 unsigned long flags;
1236
1237 /*
1238 * scan for RCD command in extended SenseID data
1239 */
1240 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1241 if (!ciw || ciw->cmd == 0)
1242 return -EOPNOTSUPP;
1243 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1244 if (!rcd_buf)
1245 return -ENOMEM;
1246
1247 channel->ccw.cmd_code = ciw->cmd;
1248 channel->ccw.cda = (__u32) __pa (rcd_buf);
1249 channel->ccw.count = ciw->count;
1250 channel->ccw.flags = CCW_FLAG_SLI;
1251 channel->state = CH_STATE_RCD;
1252 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1253 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1254 QETH_RCD_PARM, LPM_ANYPATH, 0,
1255 QETH_RCD_TIMEOUT);
1256 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1257 if (!ret)
1258 wait_event(card->wait_q,
1259 (channel->state == CH_STATE_RCD_DONE ||
1260 channel->state == CH_STATE_DOWN));
1261 if (channel->state == CH_STATE_DOWN)
1262 ret = -EIO;
1263 else
1264 channel->state = CH_STATE_DOWN;
1265 if (ret) {
1266 kfree(rcd_buf);
1267 *buffer = NULL;
1268 *length = 0;
1269 } else {
1270 *length = ciw->count;
1271 *buffer = rcd_buf;
1272 }
1273 return ret;
1274 }
1275
1276 static int
1277 qeth_get_unitaddr(struct qeth_card *card)
1278 {
1279 int length;
1280 char *prcd;
1281 int rc;
1282
1283 QETH_DBF_TEXT(setup, 2, "getunit");
1284 rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1285 if (rc) {
1286 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1287 CARD_DDEV_ID(card), rc);
1288 return rc;
1289 }
1290 card->info.chpid = prcd[30];
1291 card->info.unit_addr2 = prcd[31];
1292 card->info.cula = prcd[63];
1293 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1294 (prcd[0x11] == _ascebc['M']));
1295 kfree(prcd);
1296 return 0;
1297 }
1298
1299 static void
1300 qeth_init_tokens(struct qeth_card *card)
1301 {
1302 card->token.issuer_rm_w = 0x00010103UL;
1303 card->token.cm_filter_w = 0x00010108UL;
1304 card->token.cm_connection_w = 0x0001010aUL;
1305 card->token.ulp_filter_w = 0x0001010bUL;
1306 card->token.ulp_connection_w = 0x0001010dUL;
1307 }
1308
1309 static inline __u16
1310 raw_devno_from_bus_id(char *id)
1311 {
1312 id += (strlen(id) - 4);
1313 return (__u16) simple_strtoul(id, &id, 16);
1314 }
1315 /**
1316 * setup channel
1317 */
1318 static void
1319 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1320 {
1321 struct qeth_card *card;
1322
1323 QETH_DBF_TEXT(trace, 4, "setupccw");
1324 card = CARD_FROM_CDEV(channel->ccwdev);
1325 if (channel == &card->read)
1326 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1327 else
1328 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1329 channel->ccw.count = len;
1330 channel->ccw.cda = (__u32) __pa(iob);
1331 }
1332
1333 /**
1334 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1335 */
1336 static struct qeth_cmd_buffer *
1337 __qeth_get_buffer(struct qeth_channel *channel)
1338 {
1339 __u8 index;
1340
1341 QETH_DBF_TEXT(trace, 6, "getbuff");
1342 index = channel->io_buf_no;
1343 do {
1344 if (channel->iob[index].state == BUF_STATE_FREE) {
1345 channel->iob[index].state = BUF_STATE_LOCKED;
1346 channel->io_buf_no = (channel->io_buf_no + 1) %
1347 QETH_CMD_BUFFER_NO;
1348 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1349 return channel->iob + index;
1350 }
1351 index = (index + 1) % QETH_CMD_BUFFER_NO;
1352 } while(index != channel->io_buf_no);
1353
1354 return NULL;
1355 }
1356
1357 /**
1358 * release command buffer
1359 */
1360 static void
1361 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1362 {
1363 unsigned long flags;
1364
1365 QETH_DBF_TEXT(trace, 6, "relbuff");
1366 spin_lock_irqsave(&channel->iob_lock, flags);
1367 memset(iob->data, 0, QETH_BUFSIZE);
1368 iob->state = BUF_STATE_FREE;
1369 iob->callback = qeth_send_control_data_cb;
1370 iob->rc = 0;
1371 spin_unlock_irqrestore(&channel->iob_lock, flags);
1372 }
1373
1374 static struct qeth_cmd_buffer *
1375 qeth_get_buffer(struct qeth_channel *channel)
1376 {
1377 struct qeth_cmd_buffer *buffer = NULL;
1378 unsigned long flags;
1379
1380 spin_lock_irqsave(&channel->iob_lock, flags);
1381 buffer = __qeth_get_buffer(channel);
1382 spin_unlock_irqrestore(&channel->iob_lock, flags);
1383 return buffer;
1384 }
1385
1386 static struct qeth_cmd_buffer *
1387 qeth_wait_for_buffer(struct qeth_channel *channel)
1388 {
1389 struct qeth_cmd_buffer *buffer;
1390 wait_event(channel->wait_q,
1391 ((buffer = qeth_get_buffer(channel)) != NULL));
1392 return buffer;
1393 }
1394
1395 static void
1396 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1397 {
1398 int cnt;
1399
1400 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1401 qeth_release_buffer(channel,&channel->iob[cnt]);
1402 channel->buf_no = 0;
1403 channel->io_buf_no = 0;
1404 }
1405
1406 /**
1407 * start IDX for read and write channel
1408 */
1409 static int
1410 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1411 void (*idx_reply_cb)(struct qeth_channel *,
1412 struct qeth_cmd_buffer *))
1413 {
1414 struct qeth_cmd_buffer *iob;
1415 unsigned long flags;
1416 int rc;
1417 struct qeth_card *card;
1418
1419 QETH_DBF_TEXT(setup, 2, "idxanswr");
1420 card = CARD_FROM_CDEV(channel->ccwdev);
1421 iob = qeth_get_buffer(channel);
1422 iob->callback = idx_reply_cb;
1423 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1424 channel->ccw.count = QETH_BUFSIZE;
1425 channel->ccw.cda = (__u32) __pa(iob->data);
1426
1427 wait_event(card->wait_q,
1428 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1429 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1430 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1431 rc = ccw_device_start(channel->ccwdev,
1432 &channel->ccw,(addr_t) iob, 0, 0);
1433 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1434
1435 if (rc) {
1436 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1437 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1438 atomic_set(&channel->irq_pending, 0);
1439 wake_up(&card->wait_q);
1440 return rc;
1441 }
1442 rc = wait_event_interruptible_timeout(card->wait_q,
1443 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1444 if (rc == -ERESTARTSYS)
1445 return rc;
1446 if (channel->state != CH_STATE_UP){
1447 rc = -ETIME;
1448 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1449 qeth_clear_cmd_buffers(channel);
1450 } else
1451 rc = 0;
1452 return rc;
1453 }
1454
1455 static int
1456 qeth_idx_activate_channel(struct qeth_channel *channel,
1457 void (*idx_reply_cb)(struct qeth_channel *,
1458 struct qeth_cmd_buffer *))
1459 {
1460 struct qeth_card *card;
1461 struct qeth_cmd_buffer *iob;
1462 unsigned long flags;
1463 __u16 temp;
1464 int rc;
1465
1466 card = CARD_FROM_CDEV(channel->ccwdev);
1467
1468 QETH_DBF_TEXT(setup, 2, "idxactch");
1469
1470 iob = qeth_get_buffer(channel);
1471 iob->callback = idx_reply_cb;
1472 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1473 channel->ccw.count = IDX_ACTIVATE_SIZE;
1474 channel->ccw.cda = (__u32) __pa(iob->data);
1475 if (channel == &card->write) {
1476 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1477 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1478 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1479 card->seqno.trans_hdr++;
1480 } else {
1481 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1482 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1483 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1484 }
1485 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1486 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1487 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1488 &card->info.func_level,sizeof(__u16));
1489 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1490 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1491 temp = (card->info.cula << 8) + card->info.unit_addr2;
1492 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1493
1494 wait_event(card->wait_q,
1495 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1496 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1497 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1498 rc = ccw_device_start(channel->ccwdev,
1499 &channel->ccw,(addr_t) iob, 0, 0);
1500 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1501
1502 if (rc) {
1503 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1504 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1505 atomic_set(&channel->irq_pending, 0);
1506 wake_up(&card->wait_q);
1507 return rc;
1508 }
1509 rc = wait_event_interruptible_timeout(card->wait_q,
1510 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1511 if (rc == -ERESTARTSYS)
1512 return rc;
1513 if (channel->state != CH_STATE_ACTIVATING) {
1514 PRINT_WARN("qeth: IDX activate timed out!\n");
1515 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1516 qeth_clear_cmd_buffers(channel);
1517 return -ETIME;
1518 }
1519 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1520 }
1521
1522 static int
1523 qeth_peer_func_level(int level)
1524 {
1525 if ((level & 0xff) == 8)
1526 return (level & 0xff) + 0x400;
1527 if (((level >> 8) & 3) == 1)
1528 return (level & 0xff) + 0x200;
1529 return level;
1530 }
1531
1532 static void
1533 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1534 {
1535 struct qeth_card *card;
1536 __u16 temp;
1537
1538 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1539
1540 if (channel->state == CH_STATE_DOWN) {
1541 channel->state = CH_STATE_ACTIVATING;
1542 goto out;
1543 }
1544 card = CARD_FROM_CDEV(channel->ccwdev);
1545
1546 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1547 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1548 PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1549 "adapter exclusively used by another host\n",
1550 CARD_WDEV_ID(card));
1551 else
1552 PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1553 "negative reply\n", CARD_WDEV_ID(card));
1554 goto out;
1555 }
1556 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1557 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1558 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1559 "function level mismatch "
1560 "(sent: 0x%x, received: 0x%x)\n",
1561 CARD_WDEV_ID(card), card->info.func_level, temp);
1562 goto out;
1563 }
1564 channel->state = CH_STATE_UP;
1565 out:
1566 qeth_release_buffer(channel, iob);
1567 }
1568
1569 static int
1570 qeth_check_idx_response(unsigned char *buffer)
1571 {
1572 if (!buffer)
1573 return 0;
1574
1575 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1576 if ((buffer[2] & 0xc0) == 0xc0) {
1577 PRINT_WARN("received an IDX TERMINATE "
1578 "with cause code 0x%02x%s\n",
1579 buffer[4],
1580 ((buffer[4] == 0x22) ?
1581 " -- try another portname" : ""));
1582 QETH_DBF_TEXT(trace, 2, "ckidxres");
1583 QETH_DBF_TEXT(trace, 2, " idxterm");
1584 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1585 return -EIO;
1586 }
1587 return 0;
1588 }
1589
1590 static void
1591 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1592 {
1593 struct qeth_card *card;
1594 __u16 temp;
1595
1596 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1597 if (channel->state == CH_STATE_DOWN) {
1598 channel->state = CH_STATE_ACTIVATING;
1599 goto out;
1600 }
1601
1602 card = CARD_FROM_CDEV(channel->ccwdev);
1603 if (qeth_check_idx_response(iob->data)) {
1604 goto out;
1605 }
1606 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1607 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1608 PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1609 "adapter exclusively used by another host\n",
1610 CARD_RDEV_ID(card));
1611 else
1612 PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1613 "negative reply\n", CARD_RDEV_ID(card));
1614 goto out;
1615 }
1616
1617 /**
1618 * temporary fix for microcode bug
1619 * to revert it,replace OR by AND
1620 */
1621 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1622 (card->info.type == QETH_CARD_TYPE_OSAE) )
1623 card->info.portname_required = 1;
1624
1625 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1626 if (temp != qeth_peer_func_level(card->info.func_level)) {
1627 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1628 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1629 CARD_RDEV_ID(card), card->info.func_level, temp);
1630 goto out;
1631 }
1632 memcpy(&card->token.issuer_rm_r,
1633 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1634 QETH_MPC_TOKEN_LENGTH);
1635 memcpy(&card->info.mcl_level[0],
1636 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1637 channel->state = CH_STATE_UP;
1638 out:
1639 qeth_release_buffer(channel,iob);
1640 }
1641
1642 static int
1643 qeth_issue_next_read(struct qeth_card *card)
1644 {
1645 int rc;
1646 struct qeth_cmd_buffer *iob;
1647
1648 QETH_DBF_TEXT(trace,5,"issnxrd");
1649 if (card->read.state != CH_STATE_UP)
1650 return -EIO;
1651 iob = qeth_get_buffer(&card->read);
1652 if (!iob) {
1653 PRINT_WARN("issue_next_read failed: no iob available!\n");
1654 return -ENOMEM;
1655 }
1656 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1657 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1658 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1659 (addr_t) iob, 0, 0);
1660 if (rc) {
1661 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1662 atomic_set(&card->read.irq_pending, 0);
1663 qeth_schedule_recovery(card);
1664 wake_up(&card->wait_q);
1665 }
1666 return rc;
1667 }
1668
1669 static struct qeth_reply *
1670 qeth_alloc_reply(struct qeth_card *card)
1671 {
1672 struct qeth_reply *reply;
1673
1674 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1675 if (reply){
1676 atomic_set(&reply->refcnt, 1);
1677 atomic_set(&reply->received, 0);
1678 reply->card = card;
1679 };
1680 return reply;
1681 }
1682
1683 static void
1684 qeth_get_reply(struct qeth_reply *reply)
1685 {
1686 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1687 atomic_inc(&reply->refcnt);
1688 }
1689
1690 static void
1691 qeth_put_reply(struct qeth_reply *reply)
1692 {
1693 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1694 if (atomic_dec_and_test(&reply->refcnt))
1695 kfree(reply);
1696 }
1697
1698 static void
1699 qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, struct qeth_card *card)
1700 {
1701 int rc;
1702 int com;
1703 char * ipa_name;
1704
1705 com = cmd->hdr.command;
1706 rc = cmd->hdr.return_code;
1707 ipa_name = qeth_get_ipa_cmd_name(com);
1708
1709 PRINT_ERR("%s(x%X) for %s returned x%X \"%s\"\n", ipa_name, com,
1710 QETH_CARD_IFNAME(card), rc, qeth_get_ipa_msg(rc));
1711 }
1712
1713 static struct qeth_ipa_cmd *
1714 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1715 {
1716 struct qeth_ipa_cmd *cmd = NULL;
1717
1718 QETH_DBF_TEXT(trace,5,"chkipad");
1719 if (IS_IPA(iob->data)){
1720 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1721 if (IS_IPA_REPLY(cmd)) {
1722 if (cmd->hdr.return_code)
1723 qeth_issue_ipa_msg(cmd, card);
1724 return cmd;
1725 }
1726 else {
1727 switch (cmd->hdr.command) {
1728 case IPA_CMD_STOPLAN:
1729 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1730 "there is a network problem or "
1731 "someone pulled the cable or "
1732 "disabled the port.\n",
1733 QETH_CARD_IFNAME(card),
1734 card->info.chpid);
1735 card->lan_online = 0;
1736 if (card->dev && netif_carrier_ok(card->dev))
1737 netif_carrier_off(card->dev);
1738 return NULL;
1739 case IPA_CMD_STARTLAN:
1740 PRINT_INFO("Link reestablished on %s "
1741 "(CHPID 0x%X). Scheduling "
1742 "IP address reset.\n",
1743 QETH_CARD_IFNAME(card),
1744 card->info.chpid);
1745 netif_carrier_on(card->dev);
1746 qeth_schedule_recovery(card);
1747 return NULL;
1748 case IPA_CMD_MODCCID:
1749 return cmd;
1750 case IPA_CMD_REGISTER_LOCAL_ADDR:
1751 QETH_DBF_TEXT(trace,3, "irla");
1752 break;
1753 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1754 QETH_DBF_TEXT(trace,3, "urla");
1755 break;
1756 default:
1757 PRINT_WARN("Received data is IPA "
1758 "but not a reply!\n");
1759 break;
1760 }
1761 }
1762 }
1763 return cmd;
1764 }
1765
1766 /**
1767 * wake all waiting ipa commands
1768 */
1769 static void
1770 qeth_clear_ipacmd_list(struct qeth_card *card)
1771 {
1772 struct qeth_reply *reply, *r;
1773 unsigned long flags;
1774
1775 QETH_DBF_TEXT(trace, 4, "clipalst");
1776
1777 spin_lock_irqsave(&card->lock, flags);
1778 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1779 qeth_get_reply(reply);
1780 reply->rc = -EIO;
1781 atomic_inc(&reply->received);
1782 list_del_init(&reply->list);
1783 wake_up(&reply->wait_q);
1784 qeth_put_reply(reply);
1785 }
1786 spin_unlock_irqrestore(&card->lock, flags);
1787 }
1788
1789 static void
1790 qeth_send_control_data_cb(struct qeth_channel *channel,
1791 struct qeth_cmd_buffer *iob)
1792 {
1793 struct qeth_card *card;
1794 struct qeth_reply *reply, *r;
1795 struct qeth_ipa_cmd *cmd;
1796 unsigned long flags;
1797 int keep_reply;
1798
1799 QETH_DBF_TEXT(trace,4,"sndctlcb");
1800
1801 card = CARD_FROM_CDEV(channel->ccwdev);
1802 if (qeth_check_idx_response(iob->data)) {
1803 qeth_clear_ipacmd_list(card);
1804 qeth_schedule_recovery(card);
1805 goto out;
1806 }
1807
1808 cmd = qeth_check_ipa_data(card, iob);
1809 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1810 goto out;
1811 /*in case of OSN : check if cmd is set */
1812 if (card->info.type == QETH_CARD_TYPE_OSN &&
1813 cmd &&
1814 cmd->hdr.command != IPA_CMD_STARTLAN &&
1815 card->osn_info.assist_cb != NULL) {
1816 card->osn_info.assist_cb(card->dev, cmd);
1817 goto out;
1818 }
1819
1820 spin_lock_irqsave(&card->lock, flags);
1821 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1822 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1823 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1824 qeth_get_reply(reply);
1825 list_del_init(&reply->list);
1826 spin_unlock_irqrestore(&card->lock, flags);
1827 keep_reply = 0;
1828 if (reply->callback != NULL) {
1829 if (cmd) {
1830 reply->offset = (__u16)((char*)cmd -
1831 (char *)iob->data);
1832 keep_reply = reply->callback(card,
1833 reply,
1834 (unsigned long)cmd);
1835 } else
1836 keep_reply = reply->callback(card,
1837 reply,
1838 (unsigned long)iob);
1839 }
1840 if (cmd)
1841 reply->rc = (u16) cmd->hdr.return_code;
1842 else if (iob->rc)
1843 reply->rc = iob->rc;
1844 if (keep_reply) {
1845 spin_lock_irqsave(&card->lock, flags);
1846 list_add_tail(&reply->list,
1847 &card->cmd_waiter_list);
1848 spin_unlock_irqrestore(&card->lock, flags);
1849 } else {
1850 atomic_inc(&reply->received);
1851 wake_up(&reply->wait_q);
1852 }
1853 qeth_put_reply(reply);
1854 goto out;
1855 }
1856 }
1857 spin_unlock_irqrestore(&card->lock, flags);
1858 out:
1859 memcpy(&card->seqno.pdu_hdr_ack,
1860 QETH_PDU_HEADER_SEQ_NO(iob->data),
1861 QETH_SEQ_NO_LENGTH);
1862 qeth_release_buffer(channel,iob);
1863 }
1864
1865 static void
1866 qeth_prepare_control_data(struct qeth_card *card, int len,
1867 struct qeth_cmd_buffer *iob)
1868 {
1869 qeth_setup_ccw(&card->write,iob->data,len);
1870 iob->callback = qeth_release_buffer;
1871
1872 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1873 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1874 card->seqno.trans_hdr++;
1875 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1876 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1877 card->seqno.pdu_hdr++;
1878 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1879 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1880 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1881 }
1882
1883 static int
1884 qeth_send_control_data(struct qeth_card *card, int len,
1885 struct qeth_cmd_buffer *iob,
1886 int (*reply_cb)
1887 (struct qeth_card *, struct qeth_reply*, unsigned long),
1888 void *reply_param)
1889
1890 {
1891 int rc;
1892 unsigned long flags;
1893 struct qeth_reply *reply = NULL;
1894 unsigned long timeout;
1895
1896 QETH_DBF_TEXT(trace, 2, "sendctl");
1897
1898 reply = qeth_alloc_reply(card);
1899 if (!reply) {
1900 PRINT_WARN("Could no alloc qeth_reply!\n");
1901 return -ENOMEM;
1902 }
1903 reply->callback = reply_cb;
1904 reply->param = reply_param;
1905 if (card->state == CARD_STATE_DOWN)
1906 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1907 else
1908 reply->seqno = card->seqno.ipa++;
1909 init_waitqueue_head(&reply->wait_q);
1910 spin_lock_irqsave(&card->lock, flags);
1911 list_add_tail(&reply->list, &card->cmd_waiter_list);
1912 spin_unlock_irqrestore(&card->lock, flags);
1913 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1914
1915 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1916 qeth_prepare_control_data(card, len, iob);
1917
1918 if (IS_IPA(iob->data))
1919 timeout = jiffies + QETH_IPA_TIMEOUT;
1920 else
1921 timeout = jiffies + QETH_TIMEOUT;
1922
1923 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1924 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1925 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1926 (addr_t) iob, 0, 0);
1927 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1928 if (rc){
1929 PRINT_WARN("qeth_send_control_data: "
1930 "ccw_device_start rc = %i\n", rc);
1931 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1932 spin_lock_irqsave(&card->lock, flags);
1933 list_del_init(&reply->list);
1934 qeth_put_reply(reply);
1935 spin_unlock_irqrestore(&card->lock, flags);
1936 qeth_release_buffer(iob->channel, iob);
1937 atomic_set(&card->write.irq_pending, 0);
1938 wake_up(&card->wait_q);
1939 return rc;
1940 }
1941 while (!atomic_read(&reply->received)) {
1942 if (time_after(jiffies, timeout)) {
1943 spin_lock_irqsave(&reply->card->lock, flags);
1944 list_del_init(&reply->list);
1945 spin_unlock_irqrestore(&reply->card->lock, flags);
1946 reply->rc = -ETIME;
1947 atomic_inc(&reply->received);
1948 wake_up(&reply->wait_q);
1949 }
1950 cpu_relax();
1951 };
1952 rc = reply->rc;
1953 qeth_put_reply(reply);
1954 return rc;
1955 }
1956
1957 static int
1958 qeth_osn_send_control_data(struct qeth_card *card, int len,
1959 struct qeth_cmd_buffer *iob)
1960 {
1961 unsigned long flags;
1962 int rc = 0;
1963
1964 QETH_DBF_TEXT(trace, 5, "osndctrd");
1965
1966 wait_event(card->wait_q,
1967 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1968 qeth_prepare_control_data(card, len, iob);
1969 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1970 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1971 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1972 (addr_t) iob, 0, 0);
1973 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1974 if (rc){
1975 PRINT_WARN("qeth_osn_send_control_data: "
1976 "ccw_device_start rc = %i\n", rc);
1977 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1978 qeth_release_buffer(iob->channel, iob);
1979 atomic_set(&card->write.irq_pending, 0);
1980 wake_up(&card->wait_q);
1981 }
1982 return rc;
1983 }
1984
1985 static inline void
1986 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1987 char prot_type)
1988 {
1989 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1990 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1991 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1992 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1993 }
1994
1995 static int
1996 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1997 int data_len)
1998 {
1999 u16 s1, s2;
2000
2001 QETH_DBF_TEXT(trace,4,"osndipa");
2002
2003 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
2004 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
2005 s2 = (u16)data_len;
2006 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
2007 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
2008 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
2009 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
2010 return qeth_osn_send_control_data(card, s1, iob);
2011 }
2012
2013 static int
2014 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2015 int (*reply_cb)
2016 (struct qeth_card *,struct qeth_reply*, unsigned long),
2017 void *reply_param)
2018 {
2019 int rc;
2020 char prot_type;
2021
2022 QETH_DBF_TEXT(trace,4,"sendipa");
2023
2024 if (card->options.layer2)
2025 if (card->info.type == QETH_CARD_TYPE_OSN)
2026 prot_type = QETH_PROT_OSN2;
2027 else
2028 prot_type = QETH_PROT_LAYER2;
2029 else
2030 prot_type = QETH_PROT_TCPIP;
2031 qeth_prepare_ipa_cmd(card,iob,prot_type);
2032 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
2033 reply_cb, reply_param);
2034 return rc;
2035 }
2036
2037
2038 static int
2039 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2040 unsigned long data)
2041 {
2042 struct qeth_cmd_buffer *iob;
2043
2044 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2045
2046 iob = (struct qeth_cmd_buffer *) data;
2047 memcpy(&card->token.cm_filter_r,
2048 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2049 QETH_MPC_TOKEN_LENGTH);
2050 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2051 return 0;
2052 }
2053
2054 static int
2055 qeth_cm_enable(struct qeth_card *card)
2056 {
2057 int rc;
2058 struct qeth_cmd_buffer *iob;
2059
2060 QETH_DBF_TEXT(setup,2,"cmenable");
2061
2062 iob = qeth_wait_for_buffer(&card->write);
2063 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2064 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2065 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2066 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2067 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2068
2069 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2070 qeth_cm_enable_cb, NULL);
2071 return rc;
2072 }
2073
2074 static int
2075 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2076 unsigned long data)
2077 {
2078
2079 struct qeth_cmd_buffer *iob;
2080
2081 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2082
2083 iob = (struct qeth_cmd_buffer *) data;
2084 memcpy(&card->token.cm_connection_r,
2085 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2086 QETH_MPC_TOKEN_LENGTH);
2087 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2088 return 0;
2089 }
2090
2091 static int
2092 qeth_cm_setup(struct qeth_card *card)
2093 {
2094 int rc;
2095 struct qeth_cmd_buffer *iob;
2096
2097 QETH_DBF_TEXT(setup,2,"cmsetup");
2098
2099 iob = qeth_wait_for_buffer(&card->write);
2100 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2101 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2102 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2103 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2104 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2105 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2106 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2107 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2108 qeth_cm_setup_cb, NULL);
2109 return rc;
2110
2111 }
2112
2113 static int
2114 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2115 unsigned long data)
2116 {
2117
2118 __u16 mtu, framesize;
2119 __u16 len;
2120 __u8 link_type;
2121 struct qeth_cmd_buffer *iob;
2122
2123 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2124
2125 iob = (struct qeth_cmd_buffer *) data;
2126 memcpy(&card->token.ulp_filter_r,
2127 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2128 QETH_MPC_TOKEN_LENGTH);
2129 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2130 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2131 mtu = qeth_get_mtu_outof_framesize(framesize);
2132 if (!mtu) {
2133 iob->rc = -EINVAL;
2134 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2135 return 0;
2136 }
2137 card->info.max_mtu = mtu;
2138 card->info.initial_mtu = mtu;
2139 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2140 } else {
2141 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2142 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2143 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2144 }
2145
2146 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2147 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2148 memcpy(&link_type,
2149 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2150 card->info.link_type = link_type;
2151 } else
2152 card->info.link_type = 0;
2153 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2154 return 0;
2155 }
2156
2157 static int
2158 qeth_ulp_enable(struct qeth_card *card)
2159 {
2160 int rc;
2161 char prot_type;
2162 struct qeth_cmd_buffer *iob;
2163
2164 /*FIXME: trace view callbacks*/
2165 QETH_DBF_TEXT(setup,2,"ulpenabl");
2166
2167 iob = qeth_wait_for_buffer(&card->write);
2168 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2169
2170 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2171 (__u8) card->info.portno;
2172 if (card->options.layer2)
2173 if (card->info.type == QETH_CARD_TYPE_OSN)
2174 prot_type = QETH_PROT_OSN2;
2175 else
2176 prot_type = QETH_PROT_LAYER2;
2177 else
2178 prot_type = QETH_PROT_TCPIP;
2179
2180 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2181 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2182 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2183 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2184 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2185 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2186 card->info.portname, 9);
2187 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2188 qeth_ulp_enable_cb, NULL);
2189 return rc;
2190
2191 }
2192
2193 static int
2194 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2195 unsigned long data)
2196 {
2197 struct qeth_cmd_buffer *iob;
2198
2199 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2200
2201 iob = (struct qeth_cmd_buffer *) data;
2202 memcpy(&card->token.ulp_connection_r,
2203 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2204 QETH_MPC_TOKEN_LENGTH);
2205 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2206 return 0;
2207 }
2208
2209 static int
2210 qeth_ulp_setup(struct qeth_card *card)
2211 {
2212 int rc;
2213 __u16 temp;
2214 struct qeth_cmd_buffer *iob;
2215 struct ccw_dev_id dev_id;
2216
2217 QETH_DBF_TEXT(setup,2,"ulpsetup");
2218
2219 iob = qeth_wait_for_buffer(&card->write);
2220 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2221
2222 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2223 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2224 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2225 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2226 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2227 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2228
2229 ccw_device_get_id(CARD_DDEV(card), &dev_id);
2230 memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2231 temp = (card->info.cula << 8) + card->info.unit_addr2;
2232 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2233 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2234 qeth_ulp_setup_cb, NULL);
2235 return rc;
2236 }
2237
2238 static inline int
2239 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2240 unsigned int siga_error, const char *dbftext)
2241 {
2242 if (qdio_error || siga_error) {
2243 QETH_DBF_TEXT(trace, 2, dbftext);
2244 QETH_DBF_TEXT(qerr, 2, dbftext);
2245 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2246 buf->element[15].flags & 0xff);
2247 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2248 buf->element[14].flags & 0xff);
2249 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2250 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2251 return 1;
2252 }
2253 return 0;
2254 }
2255
2256 static struct sk_buff *
2257 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2258 {
2259 struct sk_buff* skb;
2260 int add_len;
2261
2262 add_len = 0;
2263 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2264 add_len = sizeof(struct qeth_hdr);
2265 #ifdef CONFIG_QETH_VLAN
2266 else
2267 add_len = VLAN_HLEN;
2268 #endif
2269 skb = dev_alloc_skb(length + add_len);
2270 if (skb && add_len)
2271 skb_reserve(skb, add_len);
2272 return skb;
2273 }
2274
2275 static inline int
2276 qeth_create_skb_frag(struct qdio_buffer_element *element,
2277 struct sk_buff **pskb,
2278 int offset, int *pfrag, int data_len)
2279 {
2280 struct page *page = virt_to_page(element->addr);
2281 if (*pfrag == 0) {
2282 /* the upper protocol layers assume that there is data in the
2283 * skb itself. Copy a small amount (64 bytes) to make them
2284 * happy. */
2285 *pskb = dev_alloc_skb(64 + QETH_FAKE_LL_LEN_ETH);
2286 if (!(*pskb))
2287 return -ENOMEM;
2288 skb_reserve(*pskb, QETH_FAKE_LL_LEN_ETH);
2289 if (data_len <= 64) {
2290 memcpy(skb_put(*pskb, data_len), element->addr + offset,
2291 data_len);
2292 } else {
2293 get_page(page);
2294 memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
2295 skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
2296 data_len - 64);
2297 (*pskb)->data_len += data_len - 64;
2298 (*pskb)->len += data_len - 64;
2299 (*pskb)->truesize += data_len - 64;
2300 }
2301 } else {
2302 get_page(page);
2303 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
2304 (*pskb)->data_len += data_len;
2305 (*pskb)->len += data_len;
2306 (*pskb)->truesize += data_len;
2307 }
2308 (*pfrag)++;
2309 return 0;
2310 }
2311
2312 static inline struct qeth_buffer_pool_entry *
2313 qeth_find_free_buffer_pool_entry(struct qeth_card *card)
2314 {
2315 struct list_head *plh;
2316 struct qeth_buffer_pool_entry *entry;
2317 int i, free;
2318 struct page *page;
2319
2320 if (list_empty(&card->qdio.in_buf_pool.entry_list))
2321 return NULL;
2322
2323 list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2324 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2325 free = 1;
2326 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2327 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2328 free = 0;
2329 break;
2330 }
2331 }
2332 if (free) {
2333 list_del_init(&entry->list);
2334 return entry;
2335 }
2336 }
2337
2338 /* no free buffer in pool so take first one and swap pages */
2339 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2340 struct qeth_buffer_pool_entry, list);
2341 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2342 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2343 page = alloc_page(GFP_ATOMIC|GFP_DMA);
2344 if (!page) {
2345 return NULL;
2346 } else {
2347 free_page((unsigned long)entry->elements[i]);
2348 entry->elements[i] = page_address(page);
2349 if (card->options.performance_stats)
2350 card->perf_stats.sg_alloc_page_rx++;
2351 }
2352 }
2353 }
2354 list_del_init(&entry->list);
2355 return entry;
2356 }
2357
2358 static struct sk_buff *
2359 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2360 struct qdio_buffer_element **__element, int *__offset,
2361 struct qeth_hdr **hdr)
2362 {
2363 struct qdio_buffer_element *element = *__element;
2364 int offset = *__offset;
2365 struct sk_buff *skb = NULL;
2366 int skb_len;
2367 void *data_ptr;
2368 int data_len;
2369 int use_rx_sg = 0;
2370 int frag = 0;
2371
2372 QETH_DBF_TEXT(trace,6,"nextskb");
2373 /* qeth_hdr must not cross element boundaries */
2374 if (element->length < offset + sizeof(struct qeth_hdr)){
2375 if (qeth_is_last_sbale(element))
2376 return NULL;
2377 element++;
2378 offset = 0;
2379 if (element->length < sizeof(struct qeth_hdr))
2380 return NULL;
2381 }
2382 *hdr = element->addr + offset;
2383
2384 offset += sizeof(struct qeth_hdr);
2385 if (card->options.layer2)
2386 if (card->info.type == QETH_CARD_TYPE_OSN)
2387 skb_len = (*hdr)->hdr.osn.pdu_length;
2388 else
2389 skb_len = (*hdr)->hdr.l2.pkt_length;
2390 else
2391 skb_len = (*hdr)->hdr.l3.length;
2392
2393 if (!skb_len)
2394 return NULL;
2395 if ((skb_len >= card->options.rx_sg_cb) &&
2396 (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
2397 (!atomic_read(&card->force_alloc_skb))) {
2398 use_rx_sg = 1;
2399 } else {
2400 if (card->options.fake_ll) {
2401 if (card->dev->type == ARPHRD_IEEE802_TR) {
2402 if (!(skb = qeth_get_skb(skb_len +
2403 QETH_FAKE_LL_LEN_TR, *hdr)))
2404 goto no_mem;
2405 skb_reserve(skb, QETH_FAKE_LL_LEN_TR);
2406 } else {
2407 if (!(skb = qeth_get_skb(skb_len +
2408 QETH_FAKE_LL_LEN_ETH, *hdr)))
2409 goto no_mem;
2410 skb_reserve(skb, QETH_FAKE_LL_LEN_ETH);
2411 }
2412 } else {
2413 skb = qeth_get_skb(skb_len, *hdr);
2414 if (!skb)
2415 goto no_mem;
2416 }
2417 }
2418
2419 data_ptr = element->addr + offset;
2420 while (skb_len) {
2421 data_len = min(skb_len, (int)(element->length - offset));
2422 if (data_len) {
2423 if (use_rx_sg) {
2424 if (qeth_create_skb_frag(element, &skb, offset,
2425 &frag, data_len))
2426 goto no_mem;
2427 } else {
2428 memcpy(skb_put(skb, data_len), data_ptr,
2429 data_len);
2430 }
2431 }
2432 skb_len -= data_len;
2433 if (skb_len){
2434 if (qeth_is_last_sbale(element)){
2435 QETH_DBF_TEXT(trace,4,"unexeob");
2436 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2437 QETH_DBF_TEXT(qerr,2,"unexeob");
2438 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2439 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2440 dev_kfree_skb_any(skb);
2441 card->stats.rx_errors++;
2442 return NULL;
2443 }
2444 element++;
2445 offset = 0;
2446 data_ptr = element->addr;
2447 } else {
2448 offset += data_len;
2449 }
2450 }
2451 *__element = element;
2452 *__offset = offset;
2453 if (use_rx_sg && card->options.performance_stats) {
2454 card->perf_stats.sg_skbs_rx++;
2455 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
2456 }
2457 return skb;
2458 no_mem:
2459 if (net_ratelimit()){
2460 PRINT_WARN("No memory for packet received on %s.\n",
2461 QETH_CARD_IFNAME(card));
2462 QETH_DBF_TEXT(trace,2,"noskbmem");
2463 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2464 }
2465 card->stats.rx_dropped++;
2466 return NULL;
2467 }
2468
2469 static __be16
2470 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2471 {
2472 struct qeth_card *card;
2473 struct ethhdr *eth;
2474
2475 QETH_DBF_TEXT(trace,6,"typtrans");
2476
2477 card = (struct qeth_card *)dev->priv;
2478 #ifdef CONFIG_TR
2479 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2480 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2481 return tr_type_trans(skb,dev);
2482 #endif /* CONFIG_TR */
2483 skb_reset_mac_header(skb);
2484 skb_pull(skb, ETH_HLEN );
2485 eth = eth_hdr(skb);
2486
2487 if (*eth->h_dest & 1) {
2488 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2489 skb->pkt_type = PACKET_BROADCAST;
2490 else
2491 skb->pkt_type = PACKET_MULTICAST;
2492 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2493 skb->pkt_type = PACKET_OTHERHOST;
2494
2495 if (ntohs(eth->h_proto) >= 1536)
2496 return eth->h_proto;
2497 if (*(unsigned short *) (skb->data) == 0xFFFF)
2498 return htons(ETH_P_802_3);
2499 return htons(ETH_P_802_2);
2500 }
2501
2502 static void
2503 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2504 struct qeth_hdr *hdr)
2505 {
2506 struct trh_hdr *fake_hdr;
2507 struct trllc *fake_llc;
2508 struct iphdr *ip_hdr;
2509
2510 QETH_DBF_TEXT(trace,5,"skbfktr");
2511 skb_set_mac_header(skb, (int)-QETH_FAKE_LL_LEN_TR);
2512 /* this is a fake ethernet header */
2513 fake_hdr = tr_hdr(skb);
2514
2515 /* the destination MAC address */
2516 switch (skb->pkt_type){
2517 case PACKET_MULTICAST:
2518 switch (skb->protocol){
2519 #ifdef CONFIG_QETH_IPV6
2520 case __constant_htons(ETH_P_IPV6):
2521 ndisc_mc_map((struct in6_addr *)
2522 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2523 fake_hdr->daddr, card->dev, 0);
2524 break;
2525 #endif /* CONFIG_QETH_IPV6 */
2526 case __constant_htons(ETH_P_IP):
2527 ip_hdr = (struct iphdr *)skb->data;
2528 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2529 break;
2530 default:
2531 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2532 }
2533 break;
2534 case PACKET_BROADCAST:
2535 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2536 break;
2537 default:
2538 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2539 }
2540 /* the source MAC address */
2541 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2542 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2543 else
2544 memset(fake_hdr->saddr, 0, TR_ALEN);
2545 fake_hdr->rcf=0;
2546 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2547 fake_llc->dsap = EXTENDED_SAP;
2548 fake_llc->ssap = EXTENDED_SAP;
2549 fake_llc->llc = UI_CMD;
2550 fake_llc->protid[0] = 0;
2551 fake_llc->protid[1] = 0;
2552 fake_llc->protid[2] = 0;
2553 fake_llc->ethertype = ETH_P_IP;
2554 }
2555
2556 static void
2557 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2558 struct qeth_hdr *hdr)
2559 {
2560 struct ethhdr *fake_hdr;
2561 struct iphdr *ip_hdr;
2562
2563 QETH_DBF_TEXT(trace,5,"skbfketh");
2564 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
2565 /* this is a fake ethernet header */
2566 fake_hdr = eth_hdr(skb);
2567
2568 /* the destination MAC address */
2569 switch (skb->pkt_type){
2570 case PACKET_MULTICAST:
2571 switch (skb->protocol){
2572 #ifdef CONFIG_QETH_IPV6
2573 case __constant_htons(ETH_P_IPV6):
2574 ndisc_mc_map((struct in6_addr *)
2575 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2576 fake_hdr->h_dest, card->dev, 0);
2577 break;
2578 #endif /* CONFIG_QETH_IPV6 */
2579 case __constant_htons(ETH_P_IP):
2580 ip_hdr = (struct iphdr *)skb->data;
2581 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2582 break;
2583 default:
2584 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2585 }
2586 break;
2587 case PACKET_BROADCAST:
2588 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2589 break;
2590 default:
2591 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2592 }
2593 /* the source MAC address */
2594 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2595 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2596 else
2597 memset(fake_hdr->h_source, 0, ETH_ALEN);
2598 /* the protocol */
2599 fake_hdr->h_proto = skb->protocol;
2600 }
2601
2602 static inline void
2603 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2604 struct qeth_hdr *hdr)
2605 {
2606 if (card->dev->type == ARPHRD_IEEE802_TR)
2607 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2608 else
2609 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2610 }
2611
2612 static inline void
2613 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2614 struct qeth_hdr *hdr)
2615 {
2616 skb->pkt_type = PACKET_HOST;
2617 skb->protocol = qeth_type_trans(skb, skb->dev);
2618 if (card->options.checksum_type == NO_CHECKSUMMING)
2619 skb->ip_summed = CHECKSUM_UNNECESSARY;
2620 else
2621 skb->ip_summed = CHECKSUM_NONE;
2622 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2623 }
2624
2625 static __u16
2626 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2627 struct qeth_hdr *hdr)
2628 {
2629 unsigned short vlan_id = 0;
2630 #ifdef CONFIG_QETH_IPV6
2631 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2632 skb->pkt_type = PACKET_HOST;
2633 skb->protocol = qeth_type_trans(skb, card->dev);
2634 return 0;
2635 }
2636 #endif /* CONFIG_QETH_IPV6 */
2637 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2638 ETH_P_IP);
2639 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2640 case QETH_CAST_UNICAST:
2641 skb->pkt_type = PACKET_HOST;
2642 break;
2643 case QETH_CAST_MULTICAST:
2644 skb->pkt_type = PACKET_MULTICAST;
2645 card->stats.multicast++;
2646 break;
2647 case QETH_CAST_BROADCAST:
2648 skb->pkt_type = PACKET_BROADCAST;
2649 card->stats.multicast++;
2650 break;
2651 case QETH_CAST_ANYCAST:
2652 case QETH_CAST_NOCAST:
2653 default:
2654 skb->pkt_type = PACKET_HOST;
2655 }
2656
2657 if (hdr->hdr.l3.ext_flags &
2658 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2659 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2660 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2661 }
2662
2663 if (card->options.fake_ll)
2664 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2665 else
2666 skb_reset_mac_header(skb);
2667 skb->ip_summed = card->options.checksum_type;
2668 if (card->options.checksum_type == HW_CHECKSUMMING){
2669 if ( (hdr->hdr.l3.ext_flags &
2670 (QETH_HDR_EXT_CSUM_HDR_REQ |
2671 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2672 (QETH_HDR_EXT_CSUM_HDR_REQ |
2673 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2674 skb->ip_summed = CHECKSUM_UNNECESSARY;
2675 else
2676 skb->ip_summed = SW_CHECKSUMMING;
2677 }
2678 return vlan_id;
2679 }
2680
2681 static void
2682 qeth_process_inbound_buffer(struct qeth_card *card,
2683 struct qeth_qdio_buffer *buf, int index)
2684 {
2685 struct qdio_buffer_element *element;
2686 struct sk_buff *skb;
2687 struct qeth_hdr *hdr;
2688 int offset;
2689 int rxrc;
2690 __u16 vlan_tag = 0;
2691
2692 /* get first element of current buffer */
2693 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2694 offset = 0;
2695 if (card->options.performance_stats)
2696 card->perf_stats.bufs_rec++;
2697 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2698 &offset, &hdr))) {
2699 skb->dev = card->dev;
2700 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2701 qeth_layer2_rebuild_skb(card, skb, hdr);
2702 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2703 vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2704 else { /*in case of OSN*/
2705 skb_push(skb, sizeof(struct qeth_hdr));
2706 skb_copy_to_linear_data(skb, hdr,
2707 sizeof(struct qeth_hdr));
2708 }
2709 /* is device UP ? */
2710 if (!(card->dev->flags & IFF_UP)){
2711 dev_kfree_skb_any(skb);
2712 continue;
2713 }
2714 if (card->info.type == QETH_CARD_TYPE_OSN)
2715 rxrc = card->osn_info.data_cb(skb);
2716 else
2717 #ifdef CONFIG_QETH_VLAN
2718 if (vlan_tag)
2719 if (card->vlangrp)
2720 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2721 else {
2722 dev_kfree_skb_any(skb);
2723 continue;
2724 }
2725 else
2726 #endif
2727 rxrc = netif_rx(skb);
2728 card->dev->last_rx = jiffies;
2729 card->stats.rx_packets++;
2730 card->stats.rx_bytes += skb->len;
2731 }
2732 }
2733
2734 static int
2735 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2736 {
2737 struct qeth_buffer_pool_entry *pool_entry;
2738 int i;
2739
2740 pool_entry = qeth_find_free_buffer_pool_entry(card);
2741 if (!pool_entry)
2742 return 1;
2743 /*
2744 * since the buffer is accessed only from the input_tasklet
2745 * there shouldn't be a need to synchronize; also, since we use
2746 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2747 * buffers
2748 */
2749 BUG_ON(!pool_entry);
2750
2751 buf->pool_entry = pool_entry;
2752 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2753 buf->buffer->element[i].length = PAGE_SIZE;
2754 buf->buffer->element[i].addr = pool_entry->elements[i];
2755 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2756 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2757 else
2758 buf->buffer->element[i].flags = 0;
2759 }
2760 buf->state = QETH_QDIO_BUF_EMPTY;
2761 return 0;
2762 }
2763
2764 static void
2765 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2766 struct qeth_qdio_out_buffer *buf)
2767 {
2768 int i;
2769 struct sk_buff *skb;
2770
2771 /* is PCI flag set on buffer? */
2772 if (buf->buffer->element[0].flags & 0x40)
2773 atomic_dec(&queue->set_pci_flags_count);
2774
2775 while ((skb = skb_dequeue(&buf->skb_list))){
2776 atomic_dec(&skb->users);
2777 dev_kfree_skb_any(skb);
2778 }
2779 qeth_eddp_buf_release_contexts(buf);
2780 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2781 buf->buffer->element[i].length = 0;
2782 buf->buffer->element[i].addr = NULL;
2783 buf->buffer->element[i].flags = 0;
2784 }
2785 buf->next_element_to_fill = 0;
2786 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2787 }
2788
2789 static void
2790 qeth_queue_input_buffer(struct qeth_card *card, int index)
2791 {
2792 struct qeth_qdio_q *queue = card->qdio.in_q;
2793 int count;
2794 int i;
2795 int rc;
2796 int newcount = 0;
2797
2798 QETH_DBF_TEXT(trace,6,"queinbuf");
2799 count = (index < queue->next_buf_to_init)?
2800 card->qdio.in_buf_pool.buf_count -
2801 (queue->next_buf_to_init - index) :
2802 card->qdio.in_buf_pool.buf_count -
2803 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2804 /* only requeue at a certain threshold to avoid SIGAs */
2805 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2806 for (i = queue->next_buf_to_init;
2807 i < queue->next_buf_to_init + count; ++i) {
2808 if (qeth_init_input_buffer(card,
2809 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2810 break;
2811 } else {
2812 newcount++;
2813 }
2814 }
2815
2816 if (newcount < count) {
2817 /* we are in memory shortage so we switch back to
2818 traditional skb allocation and drop packages */
2819 if (!atomic_read(&card->force_alloc_skb) &&
2820 net_ratelimit())
2821 PRINT_WARN("Switch to alloc skb\n");
2822 atomic_set(&card->force_alloc_skb, 3);
2823 count = newcount;
2824 } else {
2825 if ((atomic_read(&card->force_alloc_skb) == 1) &&
2826 net_ratelimit())
2827 PRINT_WARN("Switch to sg\n");
2828 atomic_add_unless(&card->force_alloc_skb, -1, 0);
2829 }
2830
2831 /*
2832 * according to old code it should be avoided to requeue all
2833 * 128 buffers in order to benefit from PCI avoidance.
2834 * this function keeps at least one buffer (the buffer at
2835 * 'index') un-requeued -> this buffer is the first buffer that
2836 * will be requeued the next time
2837 */
2838 if (card->options.performance_stats) {
2839 card->perf_stats.inbound_do_qdio_cnt++;
2840 card->perf_stats.inbound_do_qdio_start_time =
2841 qeth_get_micros();
2842 }
2843 rc = do_QDIO(CARD_DDEV(card),
2844 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2845 0, queue->next_buf_to_init, count, NULL);
2846 if (card->options.performance_stats)
2847 card->perf_stats.inbound_do_qdio_time +=
2848 qeth_get_micros() -
2849 card->perf_stats.inbound_do_qdio_start_time;
2850 if (rc){
2851 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2852 "return %i (device %s).\n",
2853 rc, CARD_DDEV_ID(card));
2854 QETH_DBF_TEXT(trace,2,"qinberr");
2855 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2856 }
2857 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2858 QDIO_MAX_BUFFERS_PER_Q;
2859 }
2860 }
2861
2862 static inline void
2863 qeth_put_buffer_pool_entry(struct qeth_card *card,
2864 struct qeth_buffer_pool_entry *entry)
2865 {
2866 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2867 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2868 }
2869
2870 static void
2871 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2872 unsigned int qdio_err, unsigned int siga_err,
2873 unsigned int queue, int first_element, int count,
2874 unsigned long card_ptr)
2875 {
2876 struct net_device *net_dev;
2877 struct qeth_card *card;
2878 struct qeth_qdio_buffer *buffer;
2879 int index;
2880 int i;
2881
2882 QETH_DBF_TEXT(trace, 6, "qdinput");
2883 card = (struct qeth_card *) card_ptr;
2884 net_dev = card->dev;
2885 if (card->options.performance_stats) {
2886 card->perf_stats.inbound_cnt++;
2887 card->perf_stats.inbound_start_time = qeth_get_micros();
2888 }
2889 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2890 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2891 QETH_DBF_TEXT(trace, 1,"qdinchk");
2892 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2893 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2894 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2895 qeth_schedule_recovery(card);
2896 return;
2897 }
2898 }
2899 for (i = first_element; i < (first_element + count); ++i) {
2900 index = i % QDIO_MAX_BUFFERS_PER_Q;
2901 buffer = &card->qdio.in_q->bufs[index];
2902 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2903 qeth_check_qdio_errors(buffer->buffer,
2904 qdio_err, siga_err,"qinerr")))
2905 qeth_process_inbound_buffer(card, buffer, index);
2906 /* clear buffer and give back to hardware */
2907 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2908 qeth_queue_input_buffer(card, index);
2909 }
2910 if (card->options.performance_stats)
2911 card->perf_stats.inbound_time += qeth_get_micros() -
2912 card->perf_stats.inbound_start_time;
2913 }
2914
2915 static int
2916 qeth_handle_send_error(struct qeth_card *card,
2917 struct qeth_qdio_out_buffer *buffer,
2918 unsigned int qdio_err, unsigned int siga_err)
2919 {
2920 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2921 int cc = siga_err & 3;
2922
2923 QETH_DBF_TEXT(trace, 6, "hdsnderr");
2924 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2925 switch (cc) {
2926 case 0:
2927 if (qdio_err){
2928 QETH_DBF_TEXT(trace, 1,"lnkfail");
2929 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2930 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2931 (u16)qdio_err, (u8)sbalf15);
2932 return QETH_SEND_ERROR_LINK_FAILURE;
2933 }
2934 return QETH_SEND_ERROR_NONE;
2935 case 2:
2936 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2937 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2938 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2939 return QETH_SEND_ERROR_KICK_IT;
2940 }
2941 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2942 return QETH_SEND_ERROR_RETRY;
2943 return QETH_SEND_ERROR_LINK_FAILURE;
2944 /* look at qdio_error and sbalf 15 */
2945 case 1:
2946 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2947 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2948 return QETH_SEND_ERROR_LINK_FAILURE;
2949 case 3:
2950 default:
2951 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2952 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2953 return QETH_SEND_ERROR_KICK_IT;
2954 }
2955 }
2956
2957 void
2958 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2959 int index, int count)
2960 {
2961 struct qeth_qdio_out_buffer *buf;
2962 int rc;
2963 int i;
2964 unsigned int qdio_flags;
2965
2966 QETH_DBF_TEXT(trace, 6, "flushbuf");
2967
2968 for (i = index; i < index + count; ++i) {
2969 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2970 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2971 SBAL_FLAGS_LAST_ENTRY;
2972
2973 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2974 continue;
2975
2976 if (!queue->do_pack){
2977 if ((atomic_read(&queue->used_buffers) >=
2978 (QETH_HIGH_WATERMARK_PACK -
2979 QETH_WATERMARK_PACK_FUZZ)) &&
2980 !atomic_read(&queue->set_pci_flags_count)){
2981 /* it's likely that we'll go to packing
2982 * mode soon */
2983 atomic_inc(&queue->set_pci_flags_count);
2984 buf->buffer->element[0].flags |= 0x40;
2985 }
2986 } else {
2987 if (!atomic_read(&queue->set_pci_flags_count)){
2988 /*
2989 * there's no outstanding PCI any more, so we
2990 * have to request a PCI to be sure that the PCI
2991 * will wake at some time in the future then we
2992 * can flush packed buffers that might still be
2993 * hanging around, which can happen if no
2994 * further send was requested by the stack
2995 */
2996 atomic_inc(&queue->set_pci_flags_count);
2997 buf->buffer->element[0].flags |= 0x40;
2998 }
2999 }
3000 }
3001
3002 queue->card->dev->trans_start = jiffies;
3003 if (queue->card->options.performance_stats) {
3004 queue->card->perf_stats.outbound_do_qdio_cnt++;
3005 queue->card->perf_stats.outbound_do_qdio_start_time =
3006 qeth_get_micros();
3007 }
3008 qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
3009 if (under_int)
3010 qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT;
3011 if (atomic_read(&queue->set_pci_flags_count))
3012 qdio_flags |= QDIO_FLAG_PCI_OUT;
3013 rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
3014 queue->queue_no, index, count, NULL);
3015 if (queue->card->options.performance_stats)
3016 queue->card->perf_stats.outbound_do_qdio_time +=
3017 qeth_get_micros() -
3018 queue->card->perf_stats.outbound_do_qdio_start_time;
3019 if (rc){
3020 QETH_DBF_TEXT(trace, 2, "flushbuf");
3021 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
3022 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
3023 queue->card->stats.tx_errors += count;
3024 /* this must not happen under normal circumstances. if it
3025 * happens something is really wrong -> recover */
3026 qeth_schedule_recovery(queue->card);
3027 return;
3028 }
3029 atomic_add(count, &queue->used_buffers);
3030 if (queue->card->options.performance_stats)
3031 queue->card->perf_stats.bufs_sent += count;
3032 }
3033
3034 /*
3035 * Switched to packing state if the number of used buffers on a queue
3036 * reaches a certain limit.
3037 */
3038 static void
3039 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3040 {
3041 if (!queue->do_pack) {
3042 if (atomic_read(&queue->used_buffers)
3043 >= QETH_HIGH_WATERMARK_PACK){
3044 /* switch non-PACKING -> PACKING */
3045 QETH_DBF_TEXT(trace, 6, "np->pack");
3046 if (queue->card->options.performance_stats)
3047 queue->card->perf_stats.sc_dp_p++;
3048 queue->do_pack = 1;
3049 }
3050 }
3051 }
3052
3053 /*
3054 * Switches from packing to non-packing mode. If there is a packing
3055 * buffer on the queue this buffer will be prepared to be flushed.
3056 * In that case 1 is returned to inform the caller. If no buffer
3057 * has to be flushed, zero is returned.
3058 */
3059 static int
3060 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3061 {
3062 struct qeth_qdio_out_buffer *buffer;
3063 int flush_count = 0;
3064
3065 if (queue->do_pack) {
3066 if (atomic_read(&queue->used_buffers)
3067 <= QETH_LOW_WATERMARK_PACK) {
3068 /* switch PACKING -> non-PACKING */
3069 QETH_DBF_TEXT(trace, 6, "pack->np");
3070 if (queue->card->options.performance_stats)
3071 queue->card->perf_stats.sc_p_dp++;
3072 queue->do_pack = 0;
3073 /* flush packing buffers */
3074 buffer = &queue->bufs[queue->next_buf_to_fill];
3075 if ((atomic_read(&buffer->state) ==
3076 QETH_QDIO_BUF_EMPTY) &&
3077 (buffer->next_element_to_fill > 0)) {
3078 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
3079 flush_count++;
3080 queue->next_buf_to_fill =
3081 (queue->next_buf_to_fill + 1) %
3082 QDIO_MAX_BUFFERS_PER_Q;
3083 }
3084 }
3085 }
3086 return flush_count;
3087 }
3088
3089 /*
3090 * Called to flush a packing buffer if no more pci flags are on the queue.
3091 * Checks if there is a packing buffer and prepares it to be flushed.
3092 * In that case returns 1, otherwise zero.
3093 */
3094 static int
3095 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
3096 {
3097 struct qeth_qdio_out_buffer *buffer;
3098
3099 buffer = &queue->bufs[queue->next_buf_to_fill];
3100 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3101 (buffer->next_element_to_fill > 0)){
3102 /* it's a packing buffer */
3103 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3104 queue->next_buf_to_fill =
3105 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3106 return 1;
3107 }
3108 return 0;
3109 }
3110
3111 static void
3112 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3113 {
3114 int index;
3115 int flush_cnt = 0;
3116 int q_was_packing = 0;
3117
3118 /*
3119 * check if weed have to switch to non-packing mode or if
3120 * we have to get a pci flag out on the queue
3121 */
3122 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3123 !atomic_read(&queue->set_pci_flags_count)){
3124 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3125 QETH_OUT_Q_UNLOCKED) {
3126 /*
3127 * If we get in here, there was no action in
3128 * do_send_packet. So, we check if there is a
3129 * packing buffer to be flushed here.
3130 */
3131 netif_stop_queue(queue->card->dev);
3132 index = queue->next_buf_to_fill;
3133 q_was_packing = queue->do_pack;
3134 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3135 if (!flush_cnt &&
3136 !atomic_read(&queue->set_pci_flags_count))
3137 flush_cnt +=
3138 qeth_flush_buffers_on_no_pci(queue);
3139 if (queue->card->options.performance_stats &&
3140 q_was_packing)
3141 queue->card->perf_stats.bufs_sent_pack +=
3142 flush_cnt;
3143 if (flush_cnt)
3144 qeth_flush_buffers(queue, 1, index, flush_cnt);
3145 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3146 }
3147 }
3148 }
3149
3150 static void
3151 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3152 unsigned int qdio_error, unsigned int siga_error,
3153 unsigned int __queue, int first_element, int count,
3154 unsigned long card_ptr)
3155 {
3156 struct qeth_card *card = (struct qeth_card *) card_ptr;
3157 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3158 struct qeth_qdio_out_buffer *buffer;
3159 int i;
3160
3161 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3162 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3163 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3164 QETH_DBF_TEXT(trace, 2, "achkcond");
3165 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3166 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3167 netif_stop_queue(card->dev);
3168 qeth_schedule_recovery(card);
3169 return;
3170 }
3171 }
3172 if (card->options.performance_stats) {
3173 card->perf_stats.outbound_handler_cnt++;
3174 card->perf_stats.outbound_handler_start_time =
3175 qeth_get_micros();
3176 }
3177 for(i = first_element; i < (first_element + count); ++i){
3178 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3179 /*we only handle the KICK_IT error by doing a recovery */
3180 if (qeth_handle_send_error(card, buffer,
3181 qdio_error, siga_error)
3182 == QETH_SEND_ERROR_KICK_IT){
3183 netif_stop_queue(card->dev);
3184 qeth_schedule_recovery(card);
3185 return;
3186 }
3187 qeth_clear_output_buffer(queue, buffer);
3188 }
3189 atomic_sub(count, &queue->used_buffers);
3190 /* check if we need to do something on this outbound queue */
3191 if (card->info.type != QETH_CARD_TYPE_IQD)
3192 qeth_check_outbound_queue(queue);
3193
3194 netif_wake_queue(queue->card->dev);
3195 if (card->options.performance_stats)
3196 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3197 card->perf_stats.outbound_handler_start_time;
3198 }
3199
3200 static void
3201 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3202 {
3203
3204 param_field[0] = _ascebc['P'];
3205 param_field[1] = _ascebc['C'];
3206 param_field[2] = _ascebc['I'];
3207 param_field[3] = _ascebc['T'];
3208 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3209 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3210 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3211 }
3212
3213 static void
3214 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3215 {
3216 param_field[16] = _ascebc['B'];
3217 param_field[17] = _ascebc['L'];
3218 param_field[18] = _ascebc['K'];
3219 param_field[19] = _ascebc['T'];
3220 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3221 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3222 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3223 }
3224
3225 static void
3226 qeth_initialize_working_pool_list(struct qeth_card *card)
3227 {
3228 struct qeth_buffer_pool_entry *entry;
3229
3230 QETH_DBF_TEXT(trace,5,"inwrklst");
3231
3232 list_for_each_entry(entry,
3233 &card->qdio.init_pool.entry_list, init_list) {
3234 qeth_put_buffer_pool_entry(card,entry);
3235 }
3236 }
3237
3238 static void
3239 qeth_clear_working_pool_list(struct qeth_card *card)
3240 {
3241 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3242
3243 QETH_DBF_TEXT(trace,5,"clwrklst");
3244 list_for_each_entry_safe(pool_entry, tmp,
3245 &card->qdio.in_buf_pool.entry_list, list){
3246 list_del(&pool_entry->list);
3247 }
3248 }
3249
3250 static void
3251 qeth_free_buffer_pool(struct qeth_card *card)
3252 {
3253 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3254 int i=0;
3255 QETH_DBF_TEXT(trace,5,"freepool");
3256 list_for_each_entry_safe(pool_entry, tmp,
3257 &card->qdio.init_pool.entry_list, init_list){
3258 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3259 free_page((unsigned long)pool_entry->elements[i]);
3260 list_del(&pool_entry->init_list);
3261 kfree(pool_entry);
3262 }
3263 }
3264
3265 static int
3266 qeth_alloc_buffer_pool(struct qeth_card *card)
3267 {
3268 struct qeth_buffer_pool_entry *pool_entry;
3269 void *ptr;
3270 int i, j;
3271
3272 QETH_DBF_TEXT(trace,5,"alocpool");
3273 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3274 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3275 if (!pool_entry){
3276 qeth_free_buffer_pool(card);
3277 return -ENOMEM;
3278 }
3279 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3280 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3281 if (!ptr) {
3282 while (j > 0)
3283 free_page((unsigned long)
3284 pool_entry->elements[--j]);
3285 kfree(pool_entry);
3286 qeth_free_buffer_pool(card);
3287 return -ENOMEM;
3288 }
3289 pool_entry->elements[j] = ptr;
3290 }
3291 list_add(&pool_entry->init_list,
3292 &card->qdio.init_pool.entry_list);
3293 }
3294 return 0;
3295 }
3296
3297 int
3298 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3299 {
3300 QETH_DBF_TEXT(trace, 2, "realcbp");
3301
3302 if ((card->state != CARD_STATE_DOWN) &&
3303 (card->state != CARD_STATE_RECOVER))
3304 return -EPERM;
3305
3306 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3307 qeth_clear_working_pool_list(card);
3308 qeth_free_buffer_pool(card);
3309 card->qdio.in_buf_pool.buf_count = bufcnt;
3310 card->qdio.init_pool.buf_count = bufcnt;
3311 return qeth_alloc_buffer_pool(card);
3312 }
3313
3314 static int
3315 qeth_alloc_qdio_buffers(struct qeth_card *card)
3316 {
3317 int i, j;
3318
3319 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3320
3321 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3322 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3323 return 0;
3324
3325 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3326 GFP_KERNEL|GFP_DMA);
3327 if (!card->qdio.in_q)
3328 goto out_nomem;
3329 QETH_DBF_TEXT(setup, 2, "inq");
3330 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3331 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3332 /* give inbound qeth_qdio_buffers their qdio_buffers */
3333 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3334 card->qdio.in_q->bufs[i].buffer =
3335 &card->qdio.in_q->qdio_bufs[i];
3336 /* inbound buffer pool */
3337 if (qeth_alloc_buffer_pool(card))
3338 goto out_freeinq;
3339 /* outbound */
3340 card->qdio.out_qs =
3341 kmalloc(card->qdio.no_out_queues *
3342 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3343 if (!card->qdio.out_qs)
3344 goto out_freepool;
3345 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3346 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3347 GFP_KERNEL|GFP_DMA);
3348 if (!card->qdio.out_qs[i])
3349 goto out_freeoutq;
3350 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3351 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3352 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3353 card->qdio.out_qs[i]->queue_no = i;
3354 /* give outbound qeth_qdio_buffers their qdio_buffers */
3355 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3356 card->qdio.out_qs[i]->bufs[j].buffer =
3357 &card->qdio.out_qs[i]->qdio_bufs[j];
3358 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3359 skb_list);
3360 lockdep_set_class(
3361 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3362 &qdio_out_skb_queue_key);
3363 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3364 }
3365 }
3366 return 0;
3367
3368 out_freeoutq:
3369 while (i > 0)
3370 kfree(card->qdio.out_qs[--i]);
3371 kfree(card->qdio.out_qs);
3372 card->qdio.out_qs = NULL;
3373 out_freepool:
3374 qeth_free_buffer_pool(card);
3375 out_freeinq:
3376 kfree(card->qdio.in_q);
3377 card->qdio.in_q = NULL;
3378 out_nomem:
3379 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3380 return -ENOMEM;
3381 }
3382
3383 static void
3384 qeth_free_qdio_buffers(struct qeth_card *card)
3385 {
3386 int i, j;
3387
3388 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3389 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3390 QETH_QDIO_UNINITIALIZED)
3391 return;
3392 kfree(card->qdio.in_q);
3393 card->qdio.in_q = NULL;
3394 /* inbound buffer pool */
3395 qeth_free_buffer_pool(card);
3396 /* free outbound qdio_qs */
3397 if (card->qdio.out_qs) {
3398 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3399 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3400 qeth_clear_output_buffer(card->qdio.out_qs[i],
3401 &card->qdio.out_qs[i]->bufs[j]);
3402 kfree(card->qdio.out_qs[i]);
3403 }
3404 kfree(card->qdio.out_qs);
3405 card->qdio.out_qs = NULL;
3406 }
3407 }
3408
3409 static void
3410 qeth_clear_qdio_buffers(struct qeth_card *card)
3411 {
3412 int i, j;
3413
3414 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3415 /* clear outbound buffers to free skbs */
3416 for (i = 0; i < card->qdio.no_out_queues; ++i)
3417 if (card->qdio.out_qs && card->qdio.out_qs[i]) {
3418 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3419 qeth_clear_output_buffer(card->qdio.out_qs[i],
3420 &card->qdio.out_qs[i]->bufs[j]);
3421 }
3422 }
3423
3424 static void
3425 qeth_init_qdio_info(struct qeth_card *card)
3426 {
3427 QETH_DBF_TEXT(setup, 4, "intqdinf");
3428 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3429 /* inbound */
3430 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3431 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3432 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3433 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3434 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3435 }
3436
3437 static int
3438 qeth_init_qdio_queues(struct qeth_card *card)
3439 {
3440 int i, j;
3441 int rc;
3442
3443 QETH_DBF_TEXT(setup, 2, "initqdqs");
3444
3445 /* inbound queue */
3446 memset(card->qdio.in_q->qdio_bufs, 0,
3447 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3448 qeth_initialize_working_pool_list(card);
3449 /*give only as many buffers to hardware as we have buffer pool entries*/
3450 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3451 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3452 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3453 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3454 card->qdio.in_buf_pool.buf_count - 1, NULL);
3455 if (rc) {
3456 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3457 return rc;
3458 }
3459 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3460 if (rc) {
3461 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3462 return rc;
3463 }
3464 /* outbound queue */
3465 for (i = 0; i < card->qdio.no_out_queues; ++i){
3466 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3467 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3468 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3469 qeth_clear_output_buffer(card->qdio.out_qs[i],
3470 &card->qdio.out_qs[i]->bufs[j]);
3471 }
3472 card->qdio.out_qs[i]->card = card;
3473 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3474 card->qdio.out_qs[i]->do_pack = 0;
3475 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3476 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3477 atomic_set(&card->qdio.out_qs[i]->state,
3478 QETH_OUT_Q_UNLOCKED);
3479 }
3480 return 0;
3481 }
3482
3483 static int
3484 qeth_qdio_establish(struct qeth_card *card)
3485 {
3486 struct qdio_initialize init_data;
3487 char *qib_param_field;
3488 struct qdio_buffer **in_sbal_ptrs;
3489 struct qdio_buffer **out_sbal_ptrs;
3490 int i, j, k;
3491 int rc = 0;
3492
3493 QETH_DBF_TEXT(setup, 2, "qdioest");
3494
3495 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3496 GFP_KERNEL);
3497 if (!qib_param_field)
3498 return -ENOMEM;
3499
3500 qeth_create_qib_param_field(card, qib_param_field);
3501 qeth_create_qib_param_field_blkt(card, qib_param_field);
3502
3503 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3504 GFP_KERNEL);
3505 if (!in_sbal_ptrs) {
3506 kfree(qib_param_field);
3507 return -ENOMEM;
3508 }
3509 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3510 in_sbal_ptrs[i] = (struct qdio_buffer *)
3511 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3512
3513 out_sbal_ptrs =
3514 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3515 sizeof(void *), GFP_KERNEL);
3516 if (!out_sbal_ptrs) {
3517 kfree(in_sbal_ptrs);
3518 kfree(qib_param_field);
3519 return -ENOMEM;
3520 }
3521 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3522 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3523 out_sbal_ptrs[k] = (struct qdio_buffer *)
3524 virt_to_phys(card->qdio.out_qs[i]->
3525 bufs[j].buffer);
3526 }
3527
3528 memset(&init_data, 0, sizeof(struct qdio_initialize));
3529 init_data.cdev = CARD_DDEV(card);
3530 init_data.q_format = qeth_get_qdio_q_format(card);
3531 init_data.qib_param_field_format = 0;
3532 init_data.qib_param_field = qib_param_field;
3533 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3534 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3535 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3536 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3537 init_data.no_input_qs = 1;
3538 init_data.no_output_qs = card->qdio.no_out_queues;
3539 init_data.input_handler = (qdio_handler_t *)
3540 qeth_qdio_input_handler;
3541 init_data.output_handler = (qdio_handler_t *)
3542 qeth_qdio_output_handler;
3543 init_data.int_parm = (unsigned long) card;
3544 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3545 QDIO_OUTBOUND_0COPY_SBALS |
3546 QDIO_USE_OUTBOUND_PCIS;
3547 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3548 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3549
3550 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3551 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3552 if ((rc = qdio_initialize(&init_data)))
3553 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3554
3555 kfree(out_sbal_ptrs);
3556 kfree(in_sbal_ptrs);
3557 kfree(qib_param_field);
3558 return rc;
3559 }
3560
3561 static int
3562 qeth_qdio_activate(struct qeth_card *card)
3563 {
3564 QETH_DBF_TEXT(setup,3,"qdioact");
3565 return qdio_activate(CARD_DDEV(card), 0);
3566 }
3567
3568 static int
3569 qeth_clear_channel(struct qeth_channel *channel)
3570 {
3571 unsigned long flags;
3572 struct qeth_card *card;
3573 int rc;
3574
3575 QETH_DBF_TEXT(trace,3,"clearch");
3576 card = CARD_FROM_CDEV(channel->ccwdev);
3577 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3578 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3579 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3580
3581 if (rc)
3582 return rc;
3583 rc = wait_event_interruptible_timeout(card->wait_q,
3584 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3585 if (rc == -ERESTARTSYS)
3586 return rc;
3587 if (channel->state != CH_STATE_STOPPED)
3588 return -ETIME;
3589 channel->state = CH_STATE_DOWN;
3590 return 0;
3591 }
3592
3593 static int
3594 qeth_halt_channel(struct qeth_channel *channel)
3595 {
3596 unsigned long flags;
3597 struct qeth_card *card;
3598 int rc;
3599
3600 QETH_DBF_TEXT(trace,3,"haltch");
3601 card = CARD_FROM_CDEV(channel->ccwdev);
3602 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3603 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3604 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3605
3606 if (rc)
3607 return rc;
3608 rc = wait_event_interruptible_timeout(card->wait_q,
3609 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3610 if (rc == -ERESTARTSYS)
3611 return rc;
3612 if (channel->state != CH_STATE_HALTED)
3613 return -ETIME;
3614 return 0;
3615 }
3616
3617 static int
3618 qeth_halt_channels(struct qeth_card *card)
3619 {
3620 int rc1 = 0, rc2=0, rc3 = 0;
3621
3622 QETH_DBF_TEXT(trace,3,"haltchs");
3623 rc1 = qeth_halt_channel(&card->read);
3624 rc2 = qeth_halt_channel(&card->write);
3625 rc3 = qeth_halt_channel(&card->data);
3626 if (rc1)
3627 return rc1;
3628 if (rc2)
3629 return rc2;
3630 return rc3;
3631 }
3632 static int
3633 qeth_clear_channels(struct qeth_card *card)
3634 {
3635 int rc1 = 0, rc2=0, rc3 = 0;
3636
3637 QETH_DBF_TEXT(trace,3,"clearchs");
3638 rc1 = qeth_clear_channel(&card->read);
3639 rc2 = qeth_clear_channel(&card->write);
3640 rc3 = qeth_clear_channel(&card->data);
3641 if (rc1)
3642 return rc1;
3643 if (rc2)
3644 return rc2;
3645 return rc3;
3646 }
3647
3648 static int
3649 qeth_clear_halt_card(struct qeth_card *card, int halt)
3650 {
3651 int rc = 0;
3652
3653 QETH_DBF_TEXT(trace,3,"clhacrd");
3654 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3655
3656 if (halt)
3657 rc = qeth_halt_channels(card);
3658 if (rc)
3659 return rc;
3660 return qeth_clear_channels(card);
3661 }
3662
3663 static int
3664 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3665 {
3666 int rc = 0;
3667
3668 QETH_DBF_TEXT(trace,3,"qdioclr");
3669 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3670 QETH_QDIO_CLEANING)) {
3671 case QETH_QDIO_ESTABLISHED:
3672 if ((rc = qdio_cleanup(CARD_DDEV(card),
3673 (card->info.type == QETH_CARD_TYPE_IQD) ?
3674 QDIO_FLAG_CLEANUP_USING_HALT :
3675 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3676 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3677 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3678 break;
3679 case QETH_QDIO_CLEANING:
3680 return rc;
3681 default:
3682 break;
3683 }
3684 if ((rc = qeth_clear_halt_card(card, use_halt)))
3685 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3686 card->state = CARD_STATE_DOWN;
3687 return rc;
3688 }
3689
3690 static int
3691 qeth_dm_act(struct qeth_card *card)
3692 {
3693 int rc;
3694 struct qeth_cmd_buffer *iob;
3695
3696 QETH_DBF_TEXT(setup,2,"dmact");
3697
3698 iob = qeth_wait_for_buffer(&card->write);
3699 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3700
3701 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3702 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3703 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3704 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3705 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3706 return rc;
3707 }
3708
3709 static int
3710 qeth_mpc_initialize(struct qeth_card *card)
3711 {
3712 int rc;
3713
3714 QETH_DBF_TEXT(setup,2,"mpcinit");
3715
3716 if ((rc = qeth_issue_next_read(card))){
3717 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3718 return rc;
3719 }
3720 if ((rc = qeth_cm_enable(card))){
3721 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3722 goto out_qdio;
3723 }
3724 if ((rc = qeth_cm_setup(card))){
3725 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3726 goto out_qdio;
3727 }
3728 if ((rc = qeth_ulp_enable(card))){
3729 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3730 goto out_qdio;
3731 }
3732 if ((rc = qeth_ulp_setup(card))){
3733 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3734 goto out_qdio;
3735 }
3736 if ((rc = qeth_alloc_qdio_buffers(card))){
3737 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3738 goto out_qdio;
3739 }
3740 if ((rc = qeth_qdio_establish(card))){
3741 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3742 qeth_free_qdio_buffers(card);
3743 goto out_qdio;
3744 }
3745 if ((rc = qeth_qdio_activate(card))){
3746 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3747 goto out_qdio;
3748 }
3749 if ((rc = qeth_dm_act(card))){
3750 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3751 goto out_qdio;
3752 }
3753
3754 return 0;
3755 out_qdio:
3756 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3757 return rc;
3758 }
3759
3760 static struct net_device *
3761 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3762 {
3763 struct net_device *dev = NULL;
3764
3765 switch (type) {
3766 case QETH_CARD_TYPE_OSAE:
3767 switch (linktype) {
3768 case QETH_LINK_TYPE_LANE_TR:
3769 case QETH_LINK_TYPE_HSTR:
3770 #ifdef CONFIG_TR
3771 dev = alloc_trdev(0);
3772 #endif /* CONFIG_TR */
3773 break;
3774 default:
3775 dev = alloc_etherdev(0);
3776 }
3777 break;
3778 case QETH_CARD_TYPE_IQD:
3779 dev = alloc_netdev(0, "hsi%d", ether_setup);
3780 break;
3781 case QETH_CARD_TYPE_OSN:
3782 dev = alloc_netdev(0, "osn%d", ether_setup);
3783 break;
3784 default:
3785 dev = alloc_etherdev(0);
3786 }
3787 return dev;
3788 }
3789
3790 /*hard_header fake function; used in case fake_ll is set */
3791 static int
3792 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3793 unsigned short type, const void *daddr, const void *saddr,
3794 unsigned len)
3795 {
3796 if(dev->type == ARPHRD_IEEE802_TR){
3797 struct trh_hdr *hdr;
3798 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3799 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3800 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3801 return QETH_FAKE_LL_LEN_TR;
3802
3803 } else {
3804 struct ethhdr *hdr;
3805 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3806 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3807 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3808 if (type != ETH_P_802_3)
3809 hdr->h_proto = htons(type);
3810 else
3811 hdr->h_proto = htons(len);
3812 return QETH_FAKE_LL_LEN_ETH;
3813
3814 }
3815 }
3816
3817 static const struct header_ops qeth_fake_ops = {
3818 .create = qeth_fake_header,
3819 .parse = qeth_hard_header_parse,
3820 };
3821
3822 static int
3823 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3824
3825 static int
3826 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3827 {
3828 int rc;
3829 struct qeth_card *card;
3830
3831 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3832 card = (struct qeth_card *)dev->priv;
3833 if (skb==NULL) {
3834 card->stats.tx_dropped++;
3835 card->stats.tx_errors++;
3836 /* return OK; otherwise ksoftirqd goes to 100% */
3837 return NETDEV_TX_OK;
3838 }
3839 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3840 card->stats.tx_dropped++;
3841 card->stats.tx_errors++;
3842 card->stats.tx_carrier_errors++;
3843 dev_kfree_skb_any(skb);
3844 /* return OK; otherwise ksoftirqd goes to 100% */
3845 return NETDEV_TX_OK;
3846 }
3847 if (card->options.performance_stats) {
3848 card->perf_stats.outbound_cnt++;
3849 card->perf_stats.outbound_start_time = qeth_get_micros();
3850 }
3851 netif_stop_queue(dev);
3852 if ((rc = qeth_send_packet(card, skb))) {
3853 if (rc == -EBUSY) {
3854 return NETDEV_TX_BUSY;
3855 } else {
3856 card->stats.tx_errors++;
3857 card->stats.tx_dropped++;
3858 dev_kfree_skb_any(skb);
3859 /*set to OK; otherwise ksoftirqd goes to 100% */
3860 rc = NETDEV_TX_OK;
3861 }
3862 }
3863 netif_wake_queue(dev);
3864 if (card->options.performance_stats)
3865 card->perf_stats.outbound_time += qeth_get_micros() -
3866 card->perf_stats.outbound_start_time;
3867 return rc;
3868 }
3869
3870 static int
3871 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3872 {
3873 int rc = 0;
3874 #ifdef CONFIG_QETH_VLAN
3875 struct vlan_group *vg;
3876 int i;
3877
3878 if (!(vg = card->vlangrp))
3879 return rc;
3880
3881 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3882 if (vlan_group_get_device(vg, i) == dev){
3883 rc = QETH_VLAN_CARD;
3884 break;
3885 }
3886 }
3887 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3888 return 0;
3889
3890 #endif
3891 return rc;
3892 }
3893
3894 static int
3895 qeth_verify_dev(struct net_device *dev)
3896 {
3897 struct qeth_card *card;
3898 unsigned long flags;
3899 int rc = 0;
3900
3901 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3902 list_for_each_entry(card, &qeth_card_list.list, list){
3903 if (card->dev == dev){
3904 rc = QETH_REAL_CARD;
3905 break;
3906 }
3907 rc = qeth_verify_vlan_dev(dev, card);
3908 if (rc)
3909 break;
3910 }
3911 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3912
3913 return rc;
3914 }
3915
3916 static struct qeth_card *
3917 qeth_get_card_from_dev(struct net_device *dev)
3918 {
3919 struct qeth_card *card = NULL;
3920 int rc;
3921
3922 rc = qeth_verify_dev(dev);
3923 if (rc == QETH_REAL_CARD)
3924 card = (struct qeth_card *)dev->priv;
3925 else if (rc == QETH_VLAN_CARD)
3926 card = (struct qeth_card *)
3927 VLAN_DEV_INFO(dev)->real_dev->priv;
3928
3929 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3930 return card ;
3931 }
3932
3933 static void
3934 qeth_tx_timeout(struct net_device *dev)
3935 {
3936 struct qeth_card *card;
3937
3938 card = (struct qeth_card *) dev->priv;
3939 card->stats.tx_errors++;
3940 qeth_schedule_recovery(card);
3941 }
3942
3943 static int
3944 qeth_open(struct net_device *dev)
3945 {
3946 struct qeth_card *card;
3947
3948 QETH_DBF_TEXT(trace, 4, "qethopen");
3949
3950 card = (struct qeth_card *) dev->priv;
3951
3952 if (card->state != CARD_STATE_SOFTSETUP)
3953 return -ENODEV;
3954
3955 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3956 (card->options.layer2) &&
3957 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3958 QETH_DBF_TEXT(trace,4,"nomacadr");
3959 return -EPERM;
3960 }
3961 card->data.state = CH_STATE_UP;
3962 card->state = CARD_STATE_UP;
3963 card->dev->flags |= IFF_UP;
3964 netif_start_queue(dev);
3965
3966 if (!card->lan_online && netif_carrier_ok(dev))
3967 netif_carrier_off(dev);
3968 return 0;
3969 }
3970
3971 static int
3972 qeth_stop(struct net_device *dev)
3973 {
3974 struct qeth_card *card;
3975
3976 QETH_DBF_TEXT(trace, 4, "qethstop");
3977
3978 card = (struct qeth_card *) dev->priv;
3979
3980 netif_tx_disable(dev);
3981 card->dev->flags &= ~IFF_UP;
3982 if (card->state == CARD_STATE_UP)
3983 card->state = CARD_STATE_SOFTSETUP;
3984 return 0;
3985 }
3986
3987 static int
3988 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3989 {
3990 int cast_type = RTN_UNSPEC;
3991
3992 if (card->info.type == QETH_CARD_TYPE_OSN)
3993 return cast_type;
3994
3995 if (skb->dst && skb->dst->neighbour){
3996 cast_type = skb->dst->neighbour->type;
3997 if ((cast_type == RTN_BROADCAST) ||
3998 (cast_type == RTN_MULTICAST) ||
3999 (cast_type == RTN_ANYCAST))
4000 return cast_type;
4001 else
4002 return RTN_UNSPEC;
4003 }
4004 /* try something else */
4005 if (skb->protocol == ETH_P_IPV6)
4006 return (skb_network_header(skb)[24] == 0xff) ?
4007 RTN_MULTICAST : 0;
4008 else if (skb->protocol == ETH_P_IP)
4009 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
4010 RTN_MULTICAST : 0;
4011 /* ... */
4012 if (!memcmp(skb->data, skb->dev->broadcast, 6))
4013 return RTN_BROADCAST;
4014 else {
4015 u16 hdr_mac;
4016
4017 hdr_mac = *((u16 *)skb->data);
4018 /* tr multicast? */
4019 switch (card->info.link_type) {
4020 case QETH_LINK_TYPE_HSTR:
4021 case QETH_LINK_TYPE_LANE_TR:
4022 if ((hdr_mac == QETH_TR_MAC_NC) ||
4023 (hdr_mac == QETH_TR_MAC_C))
4024 return RTN_MULTICAST;
4025 break;
4026 /* eth or so multicast? */
4027 default:
4028 if ((hdr_mac == QETH_ETH_MAC_V4) ||
4029 (hdr_mac == QETH_ETH_MAC_V6))
4030 return RTN_MULTICAST;
4031 }
4032 }
4033 return cast_type;
4034 }
4035
4036 static int
4037 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
4038 int ipv, int cast_type)
4039 {
4040 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
4041 return card->qdio.default_out_queue;
4042 switch (card->qdio.no_out_queues) {
4043 case 4:
4044 if (cast_type && card->info.is_multicast_different)
4045 return card->info.is_multicast_different &
4046 (card->qdio.no_out_queues - 1);
4047 if (card->qdio.do_prio_queueing && (ipv == 4)) {
4048 const u8 tos = ip_hdr(skb)->tos;
4049
4050 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
4051 if (tos & IP_TOS_NOTIMPORTANT)
4052 return 3;
4053 if (tos & IP_TOS_HIGHRELIABILITY)
4054 return 2;
4055 if (tos & IP_TOS_HIGHTHROUGHPUT)
4056 return 1;
4057 if (tos & IP_TOS_LOWDELAY)
4058 return 0;
4059 }
4060 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
4061 return 3 - (tos >> 6);
4062 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
4063 /* TODO: IPv6!!! */
4064 }
4065 return card->qdio.default_out_queue;
4066 case 1: /* fallthrough for single-out-queue 1920-device */
4067 default:
4068 return card->qdio.default_out_queue;
4069 }
4070 }
4071
4072 static inline int
4073 qeth_get_ip_version(struct sk_buff *skb)
4074 {
4075 switch (skb->protocol) {
4076 case ETH_P_IPV6:
4077 return 6;
4078 case ETH_P_IP:
4079 return 4;
4080 default:
4081 return 0;
4082 }
4083 }
4084
4085 static struct qeth_hdr *
4086 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
4087 {
4088 #ifdef CONFIG_QETH_VLAN
4089 u16 *tag;
4090 if (card->vlangrp && vlan_tx_tag_present(skb) &&
4091 ((ipv == 6) || card->options.layer2) ) {
4092 /*
4093 * Move the mac addresses (6 bytes src, 6 bytes dest)
4094 * to the beginning of the new header. We are using three
4095 * memcpys instead of one memmove to save cycles.
4096 */
4097 skb_push(skb, VLAN_HLEN);
4098 skb_copy_to_linear_data(skb, skb->data + 4, 4);
4099 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
4100 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
4101 tag = (u16 *)(skb->data + 12);
4102 /*
4103 * first two bytes = ETH_P_8021Q (0x8100)
4104 * second two bytes = VLANID
4105 */
4106 *tag = __constant_htons(ETH_P_8021Q);
4107 *(tag + 1) = htons(vlan_tx_tag_get(skb));
4108 }
4109 #endif
4110 return ((struct qeth_hdr *)
4111 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
4112 }
4113
4114 static void
4115 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
4116 {
4117 if (orig_skb != new_skb)
4118 dev_kfree_skb_any(new_skb);
4119 }
4120
4121 static struct sk_buff *
4122 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
4123 struct qeth_hdr **hdr, int ipv)
4124 {
4125 struct sk_buff *new_skb, *new_skb2;
4126
4127 QETH_DBF_TEXT(trace, 6, "prepskb");
4128 new_skb = skb;
4129 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4130 if (!new_skb)
4131 return NULL;
4132 new_skb2 = qeth_realloc_headroom(card, new_skb,
4133 sizeof(struct qeth_hdr));
4134 if (!new_skb2) {
4135 __qeth_free_new_skb(skb, new_skb);
4136 return NULL;
4137 }
4138 if (new_skb != skb)
4139 __qeth_free_new_skb(new_skb2, new_skb);
4140 new_skb = new_skb2;
4141 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
4142 if (*hdr == NULL) {
4143 __qeth_free_new_skb(skb, new_skb);
4144 return NULL;
4145 }
4146 return new_skb;
4147 }
4148
4149 static inline u8
4150 qeth_get_qeth_hdr_flags4(int cast_type)
4151 {
4152 if (cast_type == RTN_MULTICAST)
4153 return QETH_CAST_MULTICAST;
4154 if (cast_type == RTN_BROADCAST)
4155 return QETH_CAST_BROADCAST;
4156 return QETH_CAST_UNICAST;
4157 }
4158
4159 static inline u8
4160 qeth_get_qeth_hdr_flags6(int cast_type)
4161 {
4162 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
4163 if (cast_type == RTN_MULTICAST)
4164 return ct | QETH_CAST_MULTICAST;
4165 if (cast_type == RTN_ANYCAST)
4166 return ct | QETH_CAST_ANYCAST;
4167 if (cast_type == RTN_BROADCAST)
4168 return ct | QETH_CAST_BROADCAST;
4169 return ct | QETH_CAST_UNICAST;
4170 }
4171
4172 static void
4173 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4174 struct sk_buff *skb)
4175 {
4176 __u16 hdr_mac;
4177
4178 if (!memcmp(skb->data+QETH_HEADER_SIZE,
4179 skb->dev->broadcast,6)) { /* broadcast? */
4180 *(__u32 *)hdr->hdr.l2.flags |=
4181 QETH_LAYER2_FLAG_BROADCAST << 8;
4182 return;
4183 }
4184 hdr_mac=*((__u16*)skb->data);
4185 /* tr multicast? */
4186 switch (card->info.link_type) {
4187 case QETH_LINK_TYPE_HSTR:
4188 case QETH_LINK_TYPE_LANE_TR:
4189 if ((hdr_mac == QETH_TR_MAC_NC) ||
4190 (hdr_mac == QETH_TR_MAC_C) )
4191 *(__u32 *)hdr->hdr.l2.flags |=
4192 QETH_LAYER2_FLAG_MULTICAST << 8;
4193 else
4194 *(__u32 *)hdr->hdr.l2.flags |=
4195 QETH_LAYER2_FLAG_UNICAST << 8;
4196 break;
4197 /* eth or so multicast? */
4198 default:
4199 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4200 (hdr_mac==QETH_ETH_MAC_V6) )
4201 *(__u32 *)hdr->hdr.l2.flags |=
4202 QETH_LAYER2_FLAG_MULTICAST << 8;
4203 else
4204 *(__u32 *)hdr->hdr.l2.flags |=
4205 QETH_LAYER2_FLAG_UNICAST << 8;
4206 }
4207 }
4208
4209 static void
4210 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4211 struct sk_buff *skb, int cast_type)
4212 {
4213 memset(hdr, 0, sizeof(struct qeth_hdr));
4214 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4215
4216 /* set byte 0 to "0x02" and byte 3 to casting flags */
4217 if (cast_type==RTN_MULTICAST)
4218 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4219 else if (cast_type==RTN_BROADCAST)
4220 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4221 else
4222 qeth_layer2_get_packet_type(card, hdr, skb);
4223
4224 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4225 #ifdef CONFIG_QETH_VLAN
4226 /* VSWITCH relies on the VLAN
4227 * information to be present in
4228 * the QDIO header */
4229 if ((card->vlangrp != NULL) &&
4230 vlan_tx_tag_present(skb)) {
4231 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4232 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4233 }
4234 #endif
4235 }
4236
4237 void
4238 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4239 struct sk_buff *skb, int ipv, int cast_type)
4240 {
4241 QETH_DBF_TEXT(trace, 6, "fillhdr");
4242
4243 memset(hdr, 0, sizeof(struct qeth_hdr));
4244 if (card->options.layer2) {
4245 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4246 return;
4247 }
4248 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4249 hdr->hdr.l3.ext_flags = 0;
4250 #ifdef CONFIG_QETH_VLAN
4251 /*
4252 * before we're going to overwrite this location with next hop ip.
4253 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4254 */
4255 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4256 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4257 QETH_HDR_EXT_VLAN_FRAME :
4258 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4259 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4260 }
4261 #endif /* CONFIG_QETH_VLAN */
4262 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4263 if (ipv == 4) { /* IPv4 */
4264 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4265 memset(hdr->hdr.l3.dest_addr, 0, 12);
4266 if ((skb->dst) && (skb->dst->neighbour)) {
4267 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4268 *((u32 *) skb->dst->neighbour->primary_key);
4269 } else {
4270 /* fill in destination address used in ip header */
4271 *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4272 ip_hdr(skb)->daddr;
4273 }
4274 } else if (ipv == 6) { /* IPv6 or passthru */
4275 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4276 if ((skb->dst) && (skb->dst->neighbour)) {
4277 memcpy(hdr->hdr.l3.dest_addr,
4278 skb->dst->neighbour->primary_key, 16);
4279 } else {
4280 /* fill in destination address used in ip header */
4281 memcpy(hdr->hdr.l3.dest_addr,
4282 &ipv6_hdr(skb)->daddr, 16);
4283 }
4284 } else { /* passthrough */
4285 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4286 !memcmp(skb->data + sizeof(struct qeth_hdr) +
4287 sizeof(__u16), skb->dev->broadcast, 6)) {
4288 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4289 QETH_HDR_PASSTHRU;
4290 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4291 skb->dev->broadcast, 6)) { /* broadcast? */
4292 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4293 QETH_HDR_PASSTHRU;
4294 } else {
4295 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4296 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4297 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4298 }
4299 }
4300 }
4301
4302 static void
4303 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4304 int is_tso, int *next_element_to_fill)
4305 {
4306 int length = skb->len;
4307 int length_here;
4308 int element;
4309 char *data;
4310 int first_lap ;
4311
4312 element = *next_element_to_fill;
4313 data = skb->data;
4314 first_lap = (is_tso == 0 ? 1 : 0);
4315
4316 while (length > 0) {
4317 /* length_here is the remaining amount of data in this page */
4318 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4319 if (length < length_here)
4320 length_here = length;
4321
4322 buffer->element[element].addr = data;
4323 buffer->element[element].length = length_here;
4324 length -= length_here;
4325 if (!length) {
4326 if (first_lap)
4327 buffer->element[element].flags = 0;
4328 else
4329 buffer->element[element].flags =
4330 SBAL_FLAGS_LAST_FRAG;
4331 } else {
4332 if (first_lap)
4333 buffer->element[element].flags =
4334 SBAL_FLAGS_FIRST_FRAG;
4335 else
4336 buffer->element[element].flags =
4337 SBAL_FLAGS_MIDDLE_FRAG;
4338 }
4339 data += length_here;
4340 element++;
4341 first_lap = 0;
4342 }
4343 *next_element_to_fill = element;
4344 }
4345
4346 static int
4347 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4348 struct qeth_qdio_out_buffer *buf,
4349 struct sk_buff *skb)
4350 {
4351 struct qdio_buffer *buffer;
4352 struct qeth_hdr_tso *hdr;
4353 int flush_cnt = 0, hdr_len, large_send = 0;
4354
4355 QETH_DBF_TEXT(trace, 6, "qdfillbf");
4356
4357 buffer = buf->buffer;
4358 atomic_inc(&skb->users);
4359 skb_queue_tail(&buf->skb_list, skb);
4360
4361 hdr = (struct qeth_hdr_tso *) skb->data;
4362 /*check first on TSO ....*/
4363 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4364 int element = buf->next_element_to_fill;
4365
4366 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4367 /*fill first buffer entry only with header information */
4368 buffer->element[element].addr = skb->data;
4369 buffer->element[element].length = hdr_len;
4370 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4371 buf->next_element_to_fill++;
4372 skb->data += hdr_len;
4373 skb->len -= hdr_len;
4374 large_send = 1;
4375 }
4376 if (skb_shinfo(skb)->nr_frags == 0)
4377 __qeth_fill_buffer(skb, buffer, large_send,
4378 (int *)&buf->next_element_to_fill);
4379 else
4380 __qeth_fill_buffer_frag(skb, buffer, large_send,
4381 (int *)&buf->next_element_to_fill);
4382
4383 if (!queue->do_pack) {
4384 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4385 /* set state to PRIMED -> will be flushed */
4386 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4387 flush_cnt = 1;
4388 } else {
4389 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4390 if (queue->card->options.performance_stats)
4391 queue->card->perf_stats.skbs_sent_pack++;
4392 if (buf->next_element_to_fill >=
4393 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4394 /*
4395 * packed buffer if full -> set state PRIMED
4396 * -> will be flushed
4397 */
4398 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4399 flush_cnt = 1;
4400 }
4401 }
4402 return flush_cnt;
4403 }
4404
4405 static int
4406 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4407 struct sk_buff *skb, struct qeth_hdr *hdr,
4408 int elements_needed,
4409 struct qeth_eddp_context *ctx)
4410 {
4411 struct qeth_qdio_out_buffer *buffer;
4412 int buffers_needed = 0;
4413 int flush_cnt = 0;
4414 int index;
4415
4416 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4417
4418 /* spin until we get the queue ... */
4419 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4420 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4421 /* ... now we've got the queue */
4422 index = queue->next_buf_to_fill;
4423 buffer = &queue->bufs[queue->next_buf_to_fill];
4424 /*
4425 * check if buffer is empty to make sure that we do not 'overtake'
4426 * ourselves and try to fill a buffer that is already primed
4427 */
4428 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4429 goto out;
4430 if (ctx == NULL)
4431 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4432 QDIO_MAX_BUFFERS_PER_Q;
4433 else {
4434 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4435 if (buffers_needed < 0)
4436 goto out;
4437 queue->next_buf_to_fill =
4438 (queue->next_buf_to_fill + buffers_needed) %
4439 QDIO_MAX_BUFFERS_PER_Q;
4440 }
4441 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4442 if (ctx == NULL) {
4443 qeth_fill_buffer(queue, buffer, skb);
4444 qeth_flush_buffers(queue, 0, index, 1);
4445 } else {
4446 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4447 WARN_ON(buffers_needed != flush_cnt);
4448 qeth_flush_buffers(queue, 0, index, flush_cnt);
4449 }
4450 return 0;
4451 out:
4452 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4453 return -EBUSY;
4454 }
4455
4456 static int
4457 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4458 struct sk_buff *skb, struct qeth_hdr *hdr,
4459 int elements_needed, struct qeth_eddp_context *ctx)
4460 {
4461 struct qeth_qdio_out_buffer *buffer;
4462 int start_index;
4463 int flush_count = 0;
4464 int do_pack = 0;
4465 int tmp;
4466 int rc = 0;
4467
4468 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4469
4470 /* spin until we get the queue ... */
4471 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4472 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4473 start_index = queue->next_buf_to_fill;
4474 buffer = &queue->bufs[queue->next_buf_to_fill];
4475 /*
4476 * check if buffer is empty to make sure that we do not 'overtake'
4477 * ourselves and try to fill a buffer that is already primed
4478 */
4479 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4480 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4481 return -EBUSY;
4482 }
4483 /* check if we need to switch packing state of this queue */
4484 qeth_switch_to_packing_if_needed(queue);
4485 if (queue->do_pack){
4486 do_pack = 1;
4487 if (ctx == NULL) {
4488 /* does packet fit in current buffer? */
4489 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4490 buffer->next_element_to_fill) < elements_needed){
4491 /* ... no -> set state PRIMED */
4492 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4493 flush_count++;
4494 queue->next_buf_to_fill =
4495 (queue->next_buf_to_fill + 1) %
4496 QDIO_MAX_BUFFERS_PER_Q;
4497 buffer = &queue->bufs[queue->next_buf_to_fill];
4498 /* we did a step forward, so check buffer state
4499 * again */
4500 if (atomic_read(&buffer->state) !=
4501 QETH_QDIO_BUF_EMPTY){
4502 qeth_flush_buffers(queue, 0, start_index, flush_count);
4503 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4504 return -EBUSY;
4505 }
4506 }
4507 } else {
4508 /* check if we have enough elements (including following
4509 * free buffers) to handle eddp context */
4510 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4511 printk("eddp tx_dropped 1\n");
4512 rc = -EBUSY;
4513 goto out;
4514 }
4515 }
4516 }
4517 if (ctx == NULL)
4518 tmp = qeth_fill_buffer(queue, buffer, skb);
4519 else {
4520 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4521 if (tmp < 0) {
4522 printk("eddp tx_dropped 2\n");
4523 rc = - EBUSY;
4524 goto out;
4525 }
4526 }
4527 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4528 QDIO_MAX_BUFFERS_PER_Q;
4529 flush_count += tmp;
4530 out:
4531 if (flush_count)
4532 qeth_flush_buffers(queue, 0, start_index, flush_count);
4533 else if (!atomic_read(&queue->set_pci_flags_count))
4534 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4535 /*
4536 * queue->state will go from LOCKED -> UNLOCKED or from
4537 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4538 * (switch packing state or flush buffer to get another pci flag out).
4539 * In that case we will enter this loop
4540 */
4541 while (atomic_dec_return(&queue->state)){
4542 flush_count = 0;
4543 start_index = queue->next_buf_to_fill;
4544 /* check if we can go back to non-packing state */
4545 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4546 /*
4547 * check if we need to flush a packing buffer to get a pci
4548 * flag out on the queue
4549 */
4550 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4551 flush_count += qeth_flush_buffers_on_no_pci(queue);
4552 if (flush_count)
4553 qeth_flush_buffers(queue, 0, start_index, flush_count);
4554 }
4555 /* at this point the queue is UNLOCKED again */
4556 if (queue->card->options.performance_stats && do_pack)
4557 queue->card->perf_stats.bufs_sent_pack += flush_count;
4558
4559 return rc;
4560 }
4561
4562 static int
4563 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4564 struct sk_buff *skb, int elems)
4565 {
4566 int elements_needed = 0;
4567
4568 if (skb_shinfo(skb)->nr_frags > 0)
4569 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4570 if (elements_needed == 0)
4571 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4572 + skb->len) >> PAGE_SHIFT);
4573 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4574 PRINT_ERR("Invalid size of IP packet "
4575 "(Number=%d / Length=%d). Discarded.\n",
4576 (elements_needed+elems), skb->len);
4577 return 0;
4578 }
4579 return elements_needed;
4580 }
4581
4582 static void qeth_tx_csum(struct sk_buff *skb)
4583 {
4584 int tlen;
4585
4586 if (skb->protocol == htons(ETH_P_IP)) {
4587 tlen = ntohs(ip_hdr(skb)->tot_len) - (ip_hdr(skb)->ihl << 2);
4588 switch (ip_hdr(skb)->protocol) {
4589 case IPPROTO_TCP:
4590 tcp_hdr(skb)->check = 0;
4591 tcp_hdr(skb)->check = csum_tcpudp_magic(
4592 ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
4593 tlen, ip_hdr(skb)->protocol,
4594 skb_checksum(skb, skb_transport_offset(skb),
4595 tlen, 0));
4596 break;
4597 case IPPROTO_UDP:
4598 udp_hdr(skb)->check = 0;
4599 udp_hdr(skb)->check = csum_tcpudp_magic(
4600 ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
4601 tlen, ip_hdr(skb)->protocol,
4602 skb_checksum(skb, skb_transport_offset(skb),
4603 tlen, 0));
4604 break;
4605 }
4606 } else if (skb->protocol == htons(ETH_P_IPV6)) {
4607 switch (ipv6_hdr(skb)->nexthdr) {
4608 case IPPROTO_TCP:
4609 tcp_hdr(skb)->check = 0;
4610 tcp_hdr(skb)->check = csum_ipv6_magic(
4611 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
4612 ipv6_hdr(skb)->payload_len,
4613 ipv6_hdr(skb)->nexthdr,
4614 skb_checksum(skb, skb_transport_offset(skb),
4615 ipv6_hdr(skb)->payload_len, 0));
4616 break;
4617 case IPPROTO_UDP:
4618 udp_hdr(skb)->check = 0;
4619 udp_hdr(skb)->check = csum_ipv6_magic(
4620 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
4621 ipv6_hdr(skb)->payload_len,
4622 ipv6_hdr(skb)->nexthdr,
4623 skb_checksum(skb, skb_transport_offset(skb),
4624 ipv6_hdr(skb)->payload_len, 0));
4625 break;
4626 }
4627 }
4628 }
4629
4630 static int
4631 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4632 {
4633 int ipv = 0;
4634 int cast_type;
4635 struct qeth_qdio_out_q *queue;
4636 struct qeth_hdr *hdr = NULL;
4637 int elements_needed = 0;
4638 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4639 struct qeth_eddp_context *ctx = NULL;
4640 int tx_bytes = skb->len;
4641 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4642 unsigned short tso_size = skb_shinfo(skb)->gso_size;
4643 struct sk_buff *new_skb, *new_skb2;
4644 int rc;
4645
4646 QETH_DBF_TEXT(trace, 6, "sendpkt");
4647
4648 new_skb = skb;
4649 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4650 (skb->protocol == htons(ETH_P_IPV6)))
4651 return -EPERM;
4652 cast_type = qeth_get_cast_type(card, skb);
4653 if ((cast_type == RTN_BROADCAST) &&
4654 (card->info.broadcast_capable == 0))
4655 return -EPERM;
4656 queue = card->qdio.out_qs
4657 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4658 if (!card->options.layer2) {
4659 ipv = qeth_get_ip_version(skb);
4660 if ((card->dev->header_ops == &qeth_fake_ops) && ipv) {
4661 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4662 if (!new_skb)
4663 return -ENOMEM;
4664 if(card->dev->type == ARPHRD_IEEE802_TR){
4665 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4666 } else {
4667 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4668 }
4669 }
4670 }
4671 if (skb_is_gso(skb))
4672 large_send = card->options.large_send;
4673 /* check on OSN device*/
4674 if (card->info.type == QETH_CARD_TYPE_OSN)
4675 hdr = (struct qeth_hdr *)new_skb->data;
4676 /*are we able to do TSO ? */
4677 if ((large_send == QETH_LARGE_SEND_TSO) &&
4678 (cast_type == RTN_UNSPEC)) {
4679 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4680 if (rc) {
4681 __qeth_free_new_skb(skb, new_skb);
4682 return rc;
4683 }
4684 elements_needed++;
4685 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4686 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4687 if (!new_skb2) {
4688 __qeth_free_new_skb(skb, new_skb);
4689 return -EINVAL;
4690 }
4691 if (new_skb != skb)
4692 __qeth_free_new_skb(new_skb2, new_skb);
4693 new_skb = new_skb2;
4694 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4695 }
4696 if (large_send == QETH_LARGE_SEND_EDDP) {
4697 ctx = qeth_eddp_create_context(card, new_skb, hdr,
4698 skb->sk->sk_protocol);
4699 if (ctx == NULL) {
4700 __qeth_free_new_skb(skb, new_skb);
4701 PRINT_WARN("could not create eddp context\n");
4702 return -EINVAL;
4703 }
4704 } else {
4705 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4706 elements_needed);
4707 if (!elems) {
4708 __qeth_free_new_skb(skb, new_skb);
4709 return -EINVAL;
4710 }
4711 elements_needed += elems;
4712 }
4713
4714 if ((large_send == QETH_LARGE_SEND_NO) &&
4715 (skb->ip_summed == CHECKSUM_PARTIAL))
4716 qeth_tx_csum(new_skb);
4717
4718 if (card->info.type != QETH_CARD_TYPE_IQD)
4719 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4720 elements_needed, ctx);
4721 else {
4722 if ((skb->protocol == htons(ETH_P_ARP)) &&
4723 (card->dev->flags & IFF_NOARP)) {
4724 __qeth_free_new_skb(skb, new_skb);
4725 return -EPERM;
4726 }
4727 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4728 elements_needed, ctx);
4729 }
4730 if (!rc) {
4731 card->stats.tx_packets++;
4732 card->stats.tx_bytes += tx_bytes;
4733 if (new_skb != skb)
4734 dev_kfree_skb_any(skb);
4735 if (card->options.performance_stats) {
4736 if (tso_size &&
4737 !(large_send == QETH_LARGE_SEND_NO)) {
4738 card->perf_stats.large_send_bytes += tx_bytes;
4739 card->perf_stats.large_send_cnt++;
4740 }
4741 if (nr_frags > 0) {
4742 card->perf_stats.sg_skbs_sent++;
4743 /* nr_frags + skb->data */
4744 card->perf_stats.sg_frags_sent +=
4745 nr_frags + 1;
4746 }
4747 }
4748 } else {
4749 card->stats.tx_dropped++;
4750 __qeth_free_new_skb(skb, new_skb);
4751 }
4752 if (ctx != NULL) {
4753 /* drop creator's reference */
4754 qeth_eddp_put_context(ctx);
4755 /* free skb; it's not referenced by a buffer */
4756 if (!rc)
4757 dev_kfree_skb_any(new_skb);
4758 }
4759 return rc;
4760 }
4761
4762 static int
4763 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4764 {
4765 struct qeth_card *card = (struct qeth_card *) dev->priv;
4766 int rc = 0;
4767
4768 switch(regnum){
4769 case MII_BMCR: /* Basic mode control register */
4770 rc = BMCR_FULLDPLX;
4771 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4772 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4773 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4774 rc |= BMCR_SPEED100;
4775 break;
4776 case MII_BMSR: /* Basic mode status register */
4777 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4778 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4779 BMSR_100BASE4;
4780 break;
4781 case MII_PHYSID1: /* PHYS ID 1 */
4782 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4783 dev->dev_addr[2];
4784 rc = (rc >> 5) & 0xFFFF;
4785 break;
4786 case MII_PHYSID2: /* PHYS ID 2 */
4787 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4788 break;
4789 case MII_ADVERTISE: /* Advertisement control reg */
4790 rc = ADVERTISE_ALL;
4791 break;
4792 case MII_LPA: /* Link partner ability reg */
4793 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4794 LPA_100BASE4 | LPA_LPACK;
4795 break;
4796 case MII_EXPANSION: /* Expansion register */
4797 break;
4798 case MII_DCOUNTER: /* disconnect counter */
4799 break;
4800 case MII_FCSCOUNTER: /* false carrier counter */
4801 break;
4802 case MII_NWAYTEST: /* N-way auto-neg test register */
4803 break;
4804 case MII_RERRCOUNTER: /* rx error counter */
4805 rc = card->stats.rx_errors;
4806 break;
4807 case MII_SREVISION: /* silicon revision */
4808 break;
4809 case MII_RESV1: /* reserved 1 */
4810 break;
4811 case MII_LBRERROR: /* loopback, rx, bypass error */
4812 break;
4813 case MII_PHYADDR: /* physical address */
4814 break;
4815 case MII_RESV2: /* reserved 2 */
4816 break;
4817 case MII_TPISTATUS: /* TPI status for 10mbps */
4818 break;
4819 case MII_NCONFIG: /* network interface config */
4820 break;
4821 default:
4822 break;
4823 }
4824 return rc;
4825 }
4826
4827
4828 static const char *
4829 qeth_arp_get_error_cause(int *rc)
4830 {
4831 switch (*rc) {
4832 case QETH_IPA_ARP_RC_FAILED:
4833 *rc = -EIO;
4834 return "operation failed";
4835 case QETH_IPA_ARP_RC_NOTSUPP:
4836 *rc = -EOPNOTSUPP;
4837 return "operation not supported";
4838 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4839 *rc = -EINVAL;
4840 return "argument out of range";
4841 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4842 *rc = -EOPNOTSUPP;
4843 return "query operation not supported";
4844 case QETH_IPA_ARP_RC_Q_NO_DATA:
4845 *rc = -ENOENT;
4846 return "no query data available";
4847 default:
4848 return "unknown error";
4849 }
4850 }
4851
4852 static int
4853 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4854 __u16, long);
4855
4856 static int
4857 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4858 {
4859 int tmp;
4860 int rc;
4861
4862 QETH_DBF_TEXT(trace,3,"arpstnoe");
4863
4864 /*
4865 * currently GuestLAN only supports the ARP assist function
4866 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4867 * thus we say EOPNOTSUPP for this ARP function
4868 */
4869 if (card->info.guestlan)
4870 return -EOPNOTSUPP;
4871 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4872 PRINT_WARN("ARP processing not supported "
4873 "on %s!\n", QETH_CARD_IFNAME(card));
4874 return -EOPNOTSUPP;
4875 }
4876 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4877 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4878 no_entries);
4879 if (rc) {
4880 tmp = rc;
4881 PRINT_WARN("Could not set number of ARP entries on %s: "
4882 "%s (0x%x/%d)\n",
4883 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4884 tmp, tmp);
4885 }
4886 return rc;
4887 }
4888
4889 static void
4890 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4891 struct qeth_arp_query_data *qdata,
4892 int entry_size, int uentry_size)
4893 {
4894 char *entry_ptr;
4895 char *uentry_ptr;
4896 int i;
4897
4898 entry_ptr = (char *)&qdata->data;
4899 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4900 for (i = 0; i < qdata->no_entries; ++i){
4901 /* strip off 32 bytes "media specific information" */
4902 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4903 entry_ptr += entry_size;
4904 uentry_ptr += uentry_size;
4905 }
4906 }
4907
4908 static int
4909 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4910 unsigned long data)
4911 {
4912 struct qeth_ipa_cmd *cmd;
4913 struct qeth_arp_query_data *qdata;
4914 struct qeth_arp_query_info *qinfo;
4915 int entry_size;
4916 int uentry_size;
4917 int i;
4918
4919 QETH_DBF_TEXT(trace,4,"arpquecb");
4920
4921 qinfo = (struct qeth_arp_query_info *) reply->param;
4922 cmd = (struct qeth_ipa_cmd *) data;
4923 if (cmd->hdr.return_code) {
4924 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4925 return 0;
4926 }
4927 if (cmd->data.setassparms.hdr.return_code) {
4928 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4929 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4930 return 0;
4931 }
4932 qdata = &cmd->data.setassparms.data.query_arp;
4933 switch(qdata->reply_bits){
4934 case 5:
4935 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4936 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4937 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4938 break;
4939 case 7:
4940 /* fall through to default */
4941 default:
4942 /* tr is the same as eth -> entry7 */
4943 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4944 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4945 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4946 break;
4947 }
4948 /* check if there is enough room in userspace */
4949 if ((qinfo->udata_len - qinfo->udata_offset) <
4950 qdata->no_entries * uentry_size){
4951 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4952 cmd->hdr.return_code = -ENOMEM;
4953 PRINT_WARN("query ARP user space buffer is too small for "
4954 "the returned number of ARP entries. "
4955 "Aborting query!\n");
4956 goto out_error;
4957 }
4958 QETH_DBF_TEXT_(trace, 4, "anore%i",
4959 cmd->data.setassparms.hdr.number_of_replies);
4960 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4961 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4962
4963 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4964 /* strip off "media specific information" */
4965 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4966 uentry_size);
4967 } else
4968 /*copy entries to user buffer*/
4969 memcpy(qinfo->udata + qinfo->udata_offset,
4970 (char *)&qdata->data, qdata->no_entries*uentry_size);
4971
4972 qinfo->no_entries += qdata->no_entries;
4973 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4974 /* check if all replies received ... */
4975 if (cmd->data.setassparms.hdr.seq_no <
4976 cmd->data.setassparms.hdr.number_of_replies)
4977 return 1;
4978 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4979 /* keep STRIP_ENTRIES flag so the user program can distinguish
4980 * stripped entries from normal ones */
4981 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4982 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4983 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4984 return 0;
4985 out_error:
4986 i = 0;
4987 memcpy(qinfo->udata, &i, 4);
4988 return 0;
4989 }
4990
4991 static int
4992 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4993 int len, int (*reply_cb)(struct qeth_card *,
4994 struct qeth_reply *,
4995 unsigned long),
4996 void *reply_param)
4997 {
4998 QETH_DBF_TEXT(trace,4,"sendarp");
4999
5000 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
5001 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
5002 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
5003 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
5004 reply_cb, reply_param);
5005 }
5006
5007 static int
5008 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
5009 int len, int (*reply_cb)(struct qeth_card *,
5010 struct qeth_reply *,
5011 unsigned long),
5012 void *reply_param)
5013 {
5014 u16 s1, s2;
5015
5016 QETH_DBF_TEXT(trace,4,"sendsnmp");
5017
5018 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
5019 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
5020 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
5021 /* adjust PDU length fields in IPA_PDU_HEADER */
5022 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
5023 s2 = (u32) len;
5024 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
5025 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
5026 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
5027 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
5028 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
5029 reply_cb, reply_param);
5030 }
5031
5032 static struct qeth_cmd_buffer *
5033 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
5034 __u16, __u16, enum qeth_prot_versions);
5035 static int
5036 qeth_arp_query(struct qeth_card *card, char __user *udata)
5037 {
5038 struct qeth_cmd_buffer *iob;
5039 struct qeth_arp_query_info qinfo = {0, };
5040 int tmp;
5041 int rc;
5042
5043 QETH_DBF_TEXT(trace,3,"arpquery");
5044
5045 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
5046 IPA_ARP_PROCESSING)) {
5047 PRINT_WARN("ARP processing not supported "
5048 "on %s!\n", QETH_CARD_IFNAME(card));
5049 return -EOPNOTSUPP;
5050 }
5051 /* get size of userspace buffer and mask_bits -> 6 bytes */
5052 if (copy_from_user(&qinfo, udata, 6))
5053 return -EFAULT;
5054 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
5055 return -ENOMEM;
5056 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
5057 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5058 IPA_CMD_ASS_ARP_QUERY_INFO,
5059 sizeof(int),QETH_PROT_IPV4);
5060
5061 rc = qeth_send_ipa_arp_cmd(card, iob,
5062 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
5063 qeth_arp_query_cb, (void *)&qinfo);
5064 if (rc) {
5065 tmp = rc;
5066 PRINT_WARN("Error while querying ARP cache on %s: %s "
5067 "(0x%x/%d)\n",
5068 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5069 tmp, tmp);
5070 if (copy_to_user(udata, qinfo.udata, 4))
5071 rc = -EFAULT;
5072 } else {
5073 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5074 rc = -EFAULT;
5075 }
5076 kfree(qinfo.udata);
5077 return rc;
5078 }
5079
5080 /**
5081 * SNMP command callback
5082 */
5083 static int
5084 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
5085 unsigned long sdata)
5086 {
5087 struct qeth_ipa_cmd *cmd;
5088 struct qeth_arp_query_info *qinfo;
5089 struct qeth_snmp_cmd *snmp;
5090 unsigned char *data;
5091 __u16 data_len;
5092
5093 QETH_DBF_TEXT(trace,3,"snpcmdcb");
5094
5095 cmd = (struct qeth_ipa_cmd *) sdata;
5096 data = (unsigned char *)((char *)cmd - reply->offset);
5097 qinfo = (struct qeth_arp_query_info *) reply->param;
5098 snmp = &cmd->data.setadapterparms.data.snmp;
5099
5100 if (cmd->hdr.return_code) {
5101 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
5102 return 0;
5103 }
5104 if (cmd->data.setadapterparms.hdr.return_code) {
5105 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5106 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
5107 return 0;
5108 }
5109 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
5110 if (cmd->data.setadapterparms.hdr.seq_no == 1)
5111 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
5112 else
5113 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
5114
5115 /* check if there is enough room in userspace */
5116 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
5117 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
5118 cmd->hdr.return_code = -ENOMEM;
5119 return 0;
5120 }
5121 QETH_DBF_TEXT_(trace, 4, "snore%i",
5122 cmd->data.setadapterparms.hdr.used_total);
5123 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
5124 /*copy entries to user buffer*/
5125 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
5126 memcpy(qinfo->udata + qinfo->udata_offset,
5127 (char *)snmp,
5128 data_len + offsetof(struct qeth_snmp_cmd,data));
5129 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
5130 } else {
5131 memcpy(qinfo->udata + qinfo->udata_offset,
5132 (char *)&snmp->request, data_len);
5133 }
5134 qinfo->udata_offset += data_len;
5135 /* check if all replies received ... */
5136 QETH_DBF_TEXT_(trace, 4, "srtot%i",
5137 cmd->data.setadapterparms.hdr.used_total);
5138 QETH_DBF_TEXT_(trace, 4, "srseq%i",
5139 cmd->data.setadapterparms.hdr.seq_no);
5140 if (cmd->data.setadapterparms.hdr.seq_no <
5141 cmd->data.setadapterparms.hdr.used_total)
5142 return 1;
5143 return 0;
5144 }
5145
5146 static struct qeth_cmd_buffer *
5147 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
5148 enum qeth_prot_versions );
5149
5150 static struct qeth_cmd_buffer *
5151 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
5152 {
5153 struct qeth_cmd_buffer *iob;
5154 struct qeth_ipa_cmd *cmd;
5155
5156 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
5157 QETH_PROT_IPV4);
5158 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5159 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
5160 cmd->data.setadapterparms.hdr.command_code = command;
5161 cmd->data.setadapterparms.hdr.used_total = 1;
5162 cmd->data.setadapterparms.hdr.seq_no = 1;
5163
5164 return iob;
5165 }
5166
5167 /**
5168 * function to send SNMP commands to OSA-E card
5169 */
5170 static int
5171 qeth_snmp_command(struct qeth_card *card, char __user *udata)
5172 {
5173 struct qeth_cmd_buffer *iob;
5174 struct qeth_ipa_cmd *cmd;
5175 struct qeth_snmp_ureq *ureq;
5176 int req_len;
5177 struct qeth_arp_query_info qinfo = {0, };
5178 int rc = 0;
5179
5180 QETH_DBF_TEXT(trace,3,"snmpcmd");
5181
5182 if (card->info.guestlan)
5183 return -EOPNOTSUPP;
5184
5185 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
5186 (!card->options.layer2) ) {
5187 PRINT_WARN("SNMP Query MIBS not supported "
5188 "on %s!\n", QETH_CARD_IFNAME(card));
5189 return -EOPNOTSUPP;
5190 }
5191 /* skip 4 bytes (data_len struct member) to get req_len */
5192 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
5193 return -EFAULT;
5194 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
5195 if (!ureq) {
5196 QETH_DBF_TEXT(trace, 2, "snmpnome");
5197 return -ENOMEM;
5198 }
5199 if (copy_from_user(ureq, udata,
5200 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
5201 kfree(ureq);
5202 return -EFAULT;
5203 }
5204 qinfo.udata_len = ureq->hdr.data_len;
5205 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
5206 kfree(ureq);
5207 return -ENOMEM;
5208 }
5209 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5210
5211 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5212 QETH_SNMP_SETADP_CMDLENGTH + req_len);
5213 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5214 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5215 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5216 qeth_snmp_command_cb, (void *)&qinfo);
5217 if (rc)
5218 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5219 QETH_CARD_IFNAME(card), rc);
5220 else {
5221 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5222 rc = -EFAULT;
5223 }
5224
5225 kfree(ureq);
5226 kfree(qinfo.udata);
5227 return rc;
5228 }
5229
5230 static int
5231 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5232 unsigned long);
5233
5234 static int
5235 qeth_default_setadapterparms_cb(struct qeth_card *card,
5236 struct qeth_reply *reply,
5237 unsigned long data);
5238 static int
5239 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5240 __u16, long,
5241 int (*reply_cb)
5242 (struct qeth_card *, struct qeth_reply *, unsigned long),
5243 void *reply_param);
5244
5245 static int
5246 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5247 {
5248 struct qeth_cmd_buffer *iob;
5249 char buf[16];
5250 int tmp;
5251 int rc;
5252
5253 QETH_DBF_TEXT(trace,3,"arpadent");
5254
5255 /*
5256 * currently GuestLAN only supports the ARP assist function
5257 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5258 * thus we say EOPNOTSUPP for this ARP function
5259 */
5260 if (card->info.guestlan)
5261 return -EOPNOTSUPP;
5262 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5263 PRINT_WARN("ARP processing not supported "
5264 "on %s!\n", QETH_CARD_IFNAME(card));
5265 return -EOPNOTSUPP;
5266 }
5267
5268 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5269 IPA_CMD_ASS_ARP_ADD_ENTRY,
5270 sizeof(struct qeth_arp_cache_entry),
5271 QETH_PROT_IPV4);
5272 rc = qeth_send_setassparms(card, iob,
5273 sizeof(struct qeth_arp_cache_entry),
5274 (unsigned long) entry,
5275 qeth_default_setassparms_cb, NULL);
5276 if (rc) {
5277 tmp = rc;
5278 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5279 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5280 "%s (0x%x/%d)\n",
5281 buf, QETH_CARD_IFNAME(card),
5282 qeth_arp_get_error_cause(&rc), tmp, tmp);
5283 }
5284 return rc;
5285 }
5286
5287 static int
5288 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5289 {
5290 struct qeth_cmd_buffer *iob;
5291 char buf[16] = {0, };
5292 int tmp;
5293 int rc;
5294
5295 QETH_DBF_TEXT(trace,3,"arprment");
5296
5297 /*
5298 * currently GuestLAN only supports the ARP assist function
5299 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5300 * thus we say EOPNOTSUPP for this ARP function
5301 */
5302 if (card->info.guestlan)
5303 return -EOPNOTSUPP;
5304 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5305 PRINT_WARN("ARP processing not supported "
5306 "on %s!\n", QETH_CARD_IFNAME(card));
5307 return -EOPNOTSUPP;
5308 }
5309 memcpy(buf, entry, 12);
5310 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5311 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5312 12,
5313 QETH_PROT_IPV4);
5314 rc = qeth_send_setassparms(card, iob,
5315 12, (unsigned long)buf,
5316 qeth_default_setassparms_cb, NULL);
5317 if (rc) {
5318 tmp = rc;
5319 memset(buf, 0, 16);
5320 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5321 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5322 "%s (0x%x/%d)\n",
5323 buf, QETH_CARD_IFNAME(card),
5324 qeth_arp_get_error_cause(&rc), tmp, tmp);
5325 }
5326 return rc;
5327 }
5328
5329 static int
5330 qeth_arp_flush_cache(struct qeth_card *card)
5331 {
5332 int rc;
5333 int tmp;
5334
5335 QETH_DBF_TEXT(trace,3,"arpflush");
5336
5337 /*
5338 * currently GuestLAN only supports the ARP assist function
5339 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5340 * thus we say EOPNOTSUPP for this ARP function
5341 */
5342 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5343 return -EOPNOTSUPP;
5344 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5345 PRINT_WARN("ARP processing not supported "
5346 "on %s!\n", QETH_CARD_IFNAME(card));
5347 return -EOPNOTSUPP;
5348 }
5349 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5350 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5351 if (rc){
5352 tmp = rc;
5353 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5354 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5355 tmp, tmp);
5356 }
5357 return rc;
5358 }
5359
5360 static int
5361 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5362 {
5363 struct qeth_card *card = (struct qeth_card *)dev->priv;
5364 struct qeth_arp_cache_entry arp_entry;
5365 struct mii_ioctl_data *mii_data;
5366 int rc = 0;
5367
5368 if (!card)
5369 return -ENODEV;
5370
5371 if ((card->state != CARD_STATE_UP) &&
5372 (card->state != CARD_STATE_SOFTSETUP))
5373 return -ENODEV;
5374
5375 if (card->info.type == QETH_CARD_TYPE_OSN)
5376 return -EPERM;
5377
5378 switch (cmd){
5379 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5380 if ( !capable(CAP_NET_ADMIN) ||
5381 (card->options.layer2) ) {
5382 rc = -EPERM;
5383 break;
5384 }
5385 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5386 break;
5387 case SIOC_QETH_ARP_QUERY_INFO:
5388 if ( !capable(CAP_NET_ADMIN) ||
5389 (card->options.layer2) ) {
5390 rc = -EPERM;
5391 break;
5392 }
5393 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5394 break;
5395 case SIOC_QETH_ARP_ADD_ENTRY:
5396 if ( !capable(CAP_NET_ADMIN) ||
5397 (card->options.layer2) ) {
5398 rc = -EPERM;
5399 break;
5400 }
5401 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5402 sizeof(struct qeth_arp_cache_entry)))
5403 rc = -EFAULT;
5404 else
5405 rc = qeth_arp_add_entry(card, &arp_entry);
5406 break;
5407 case SIOC_QETH_ARP_REMOVE_ENTRY:
5408 if ( !capable(CAP_NET_ADMIN) ||
5409 (card->options.layer2) ) {
5410 rc = -EPERM;
5411 break;
5412 }
5413 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5414 sizeof(struct qeth_arp_cache_entry)))
5415 rc = -EFAULT;
5416 else
5417 rc = qeth_arp_remove_entry(card, &arp_entry);
5418 break;
5419 case SIOC_QETH_ARP_FLUSH_CACHE:
5420 if ( !capable(CAP_NET_ADMIN) ||
5421 (card->options.layer2) ) {
5422 rc = -EPERM;
5423 break;
5424 }
5425 rc = qeth_arp_flush_cache(card);
5426 break;
5427 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5428 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5429 break;
5430 case SIOC_QETH_GET_CARD_TYPE:
5431 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5432 !card->info.guestlan)
5433 return 1;
5434 return 0;
5435 break;
5436 case SIOCGMIIPHY:
5437 mii_data = if_mii(rq);
5438 mii_data->phy_id = 0;
5439 break;
5440 case SIOCGMIIREG:
5441 mii_data = if_mii(rq);
5442 if (mii_data->phy_id != 0)
5443 rc = -EINVAL;
5444 else
5445 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5446 mii_data->reg_num);
5447 break;
5448 default:
5449 rc = -EOPNOTSUPP;
5450 }
5451 if (rc)
5452 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5453 return rc;
5454 }
5455
5456 static struct net_device_stats *
5457 qeth_get_stats(struct net_device *dev)
5458 {
5459 struct qeth_card *card;
5460
5461 card = (struct qeth_card *) (dev->priv);
5462
5463 QETH_DBF_TEXT(trace,5,"getstat");
5464
5465 return &card->stats;
5466 }
5467
5468 static int
5469 qeth_change_mtu(struct net_device *dev, int new_mtu)
5470 {
5471 struct qeth_card *card;
5472 char dbf_text[15];
5473
5474 card = (struct qeth_card *) (dev->priv);
5475
5476 QETH_DBF_TEXT(trace,4,"chgmtu");
5477 sprintf(dbf_text, "%8x", new_mtu);
5478 QETH_DBF_TEXT(trace,4,dbf_text);
5479
5480 if (new_mtu < 64)
5481 return -EINVAL;
5482 if (new_mtu > 65535)
5483 return -EINVAL;
5484 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5485 (!qeth_mtu_is_valid(card, new_mtu)))
5486 return -EINVAL;
5487 dev->mtu = new_mtu;
5488 return 0;
5489 }
5490
5491 #ifdef CONFIG_QETH_VLAN
5492 static void
5493 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5494 {
5495 struct qeth_card *card;
5496 unsigned long flags;
5497
5498 QETH_DBF_TEXT(trace,4,"vlanreg");
5499
5500 card = (struct qeth_card *) dev->priv;
5501 spin_lock_irqsave(&card->vlanlock, flags);
5502 card->vlangrp = grp;
5503 spin_unlock_irqrestore(&card->vlanlock, flags);
5504 }
5505
5506 static void
5507 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5508 unsigned short vid)
5509 {
5510 int i;
5511 struct sk_buff *skb;
5512 struct sk_buff_head tmp_list;
5513
5514 skb_queue_head_init(&tmp_list);
5515 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5516 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5517 while ((skb = skb_dequeue(&buf->skb_list))){
5518 if (vlan_tx_tag_present(skb) &&
5519 (vlan_tx_tag_get(skb) == vid)) {
5520 atomic_dec(&skb->users);
5521 dev_kfree_skb(skb);
5522 } else
5523 skb_queue_tail(&tmp_list, skb);
5524 }
5525 }
5526 while ((skb = skb_dequeue(&tmp_list)))
5527 skb_queue_tail(&buf->skb_list, skb);
5528 }
5529
5530 static void
5531 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5532 {
5533 int i, j;
5534
5535 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5536 for (i = 0; i < card->qdio.no_out_queues; ++i){
5537 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5538 qeth_free_vlan_buffer(card, &card->qdio.
5539 out_qs[i]->bufs[j], vid);
5540 }
5541 }
5542
5543 static void
5544 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5545 {
5546 struct in_device *in_dev;
5547 struct in_ifaddr *ifa;
5548 struct qeth_ipaddr *addr;
5549
5550 QETH_DBF_TEXT(trace, 4, "frvaddr4");
5551
5552 rcu_read_lock();
5553 in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
5554 if (!in_dev)
5555 goto out;
5556 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5557 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5558 if (addr){
5559 addr->u.a4.addr = ifa->ifa_address;
5560 addr->u.a4.mask = ifa->ifa_mask;
5561 addr->type = QETH_IP_TYPE_NORMAL;
5562 if (!qeth_delete_ip(card, addr))
5563 kfree(addr);
5564 }
5565 }
5566 out:
5567 rcu_read_unlock();
5568 }
5569
5570 static void
5571 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5572 {
5573 #ifdef CONFIG_QETH_IPV6
5574 struct inet6_dev *in6_dev;
5575 struct inet6_ifaddr *ifa;
5576 struct qeth_ipaddr *addr;
5577
5578 QETH_DBF_TEXT(trace, 4, "frvaddr6");
5579
5580 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
5581 if (!in6_dev)
5582 return;
5583 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5584 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5585 if (addr){
5586 memcpy(&addr->u.a6.addr, &ifa->addr,
5587 sizeof(struct in6_addr));
5588 addr->u.a6.pfxlen = ifa->prefix_len;
5589 addr->type = QETH_IP_TYPE_NORMAL;
5590 if (!qeth_delete_ip(card, addr))
5591 kfree(addr);
5592 }
5593 }
5594 in6_dev_put(in6_dev);
5595 #endif /* CONFIG_QETH_IPV6 */
5596 }
5597
5598 static void
5599 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5600 {
5601 if (card->options.layer2 || !card->vlangrp)
5602 return;
5603 qeth_free_vlan_addresses4(card, vid);
5604 qeth_free_vlan_addresses6(card, vid);
5605 }
5606
5607 static int
5608 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5609 struct qeth_reply *reply,
5610 unsigned long data)
5611 {
5612 struct qeth_ipa_cmd *cmd;
5613
5614 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5615 cmd = (struct qeth_ipa_cmd *) data;
5616 if (cmd->hdr.return_code) {
5617 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5618 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5619 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5620 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5621 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5622 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5623 }
5624 return 0;
5625 }
5626
5627 static int
5628 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5629 enum qeth_ipa_cmds ipacmd)
5630 {
5631 struct qeth_ipa_cmd *cmd;
5632 struct qeth_cmd_buffer *iob;
5633
5634 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5635 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5636 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5637 cmd->data.setdelvlan.vlan_id = i;
5638 return qeth_send_ipa_cmd(card, iob,
5639 qeth_layer2_send_setdelvlan_cb, NULL);
5640 }
5641
5642 static void
5643 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5644 {
5645 unsigned short i;
5646
5647 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5648
5649 if (!card->vlangrp)
5650 return;
5651 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5652 if (vlan_group_get_device(card->vlangrp, i) == NULL)
5653 continue;
5654 if (clear)
5655 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5656 else
5657 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5658 }
5659 }
5660
5661 /*add_vid is layer 2 used only ....*/
5662 static void
5663 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5664 {
5665 struct qeth_card *card;
5666
5667 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5668
5669 card = (struct qeth_card *) dev->priv;
5670 if (!card->options.layer2)
5671 return;
5672 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5673 }
5674
5675 /*... kill_vid used for both modes*/
5676 static void
5677 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5678 {
5679 struct qeth_card *card;
5680 unsigned long flags;
5681
5682 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5683
5684 card = (struct qeth_card *) dev->priv;
5685 /* free all skbs for the vlan device */
5686 qeth_free_vlan_skbs(card, vid);
5687 spin_lock_irqsave(&card->vlanlock, flags);
5688 /* unregister IP addresses of vlan device */
5689 qeth_free_vlan_addresses(card, vid);
5690 vlan_group_set_device(card->vlangrp, vid, NULL);
5691 spin_unlock_irqrestore(&card->vlanlock, flags);
5692 if (card->options.layer2)
5693 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5694 qeth_set_multicast_list(card->dev);
5695 }
5696 #endif
5697 /**
5698 * Examine hardware response to SET_PROMISC_MODE
5699 */
5700 static int
5701 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5702 struct qeth_reply *reply,
5703 unsigned long data)
5704 {
5705 struct qeth_ipa_cmd *cmd;
5706 struct qeth_ipacmd_setadpparms *setparms;
5707
5708 QETH_DBF_TEXT(trace,4,"prmadpcb");
5709
5710 cmd = (struct qeth_ipa_cmd *) data;
5711 setparms = &(cmd->data.setadapterparms);
5712
5713 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5714 if (cmd->hdr.return_code) {
5715 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5716 setparms->data.mode = SET_PROMISC_MODE_OFF;
5717 }
5718 card->info.promisc_mode = setparms->data.mode;
5719 return 0;
5720 }
5721 /*
5722 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5723 */
5724 static void
5725 qeth_setadp_promisc_mode(struct qeth_card *card)
5726 {
5727 enum qeth_ipa_promisc_modes mode;
5728 struct net_device *dev = card->dev;
5729 struct qeth_cmd_buffer *iob;
5730 struct qeth_ipa_cmd *cmd;
5731
5732 QETH_DBF_TEXT(trace, 4, "setprom");
5733
5734 if (((dev->flags & IFF_PROMISC) &&
5735 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5736 (!(dev->flags & IFF_PROMISC) &&
5737 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5738 return;
5739 mode = SET_PROMISC_MODE_OFF;
5740 if (dev->flags & IFF_PROMISC)
5741 mode = SET_PROMISC_MODE_ON;
5742 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5743
5744 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5745 sizeof(struct qeth_ipacmd_setadpparms));
5746 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5747 cmd->data.setadapterparms.data.mode = mode;
5748 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5749 }
5750
5751 /**
5752 * set multicast address on card
5753 */
5754 static void
5755 qeth_set_multicast_list(struct net_device *dev)
5756 {
5757 struct qeth_card *card = (struct qeth_card *) dev->priv;
5758
5759 if (card->info.type == QETH_CARD_TYPE_OSN)
5760 return ;
5761
5762 QETH_DBF_TEXT(trace, 3, "setmulti");
5763 qeth_delete_mc_addresses(card);
5764 if (card->options.layer2) {
5765 qeth_layer2_add_multicast(card);
5766 goto out;
5767 }
5768 qeth_add_multicast_ipv4(card);
5769 #ifdef CONFIG_QETH_IPV6
5770 qeth_add_multicast_ipv6(card);
5771 #endif
5772 out:
5773 qeth_set_ip_addr_list(card);
5774 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5775 return;
5776 qeth_setadp_promisc_mode(card);
5777 }
5778
5779 static int
5780 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5781 {
5782 return 0;
5783 }
5784
5785 static void
5786 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5787 {
5788 if (dev->type == ARPHRD_IEEE802_TR)
5789 ip_tr_mc_map(ipm, mac);
5790 else
5791 ip_eth_mc_map(ipm, mac);
5792 }
5793
5794 static struct qeth_ipaddr *
5795 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5796 {
5797 struct qeth_ipaddr *addr;
5798
5799 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5800 if (addr == NULL) {
5801 PRINT_WARN("Not enough memory to add address\n");
5802 return NULL;
5803 }
5804 addr->type = QETH_IP_TYPE_NORMAL;
5805 addr->proto = prot;
5806 return addr;
5807 }
5808
5809 int
5810 qeth_osn_assist(struct net_device *dev,
5811 void *data,
5812 int data_len)
5813 {
5814 struct qeth_cmd_buffer *iob;
5815 struct qeth_card *card;
5816 int rc;
5817
5818 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5819 if (!dev)
5820 return -ENODEV;
5821 card = (struct qeth_card *)dev->priv;
5822 if (!card)
5823 return -ENODEV;
5824 if ((card->state != CARD_STATE_UP) &&
5825 (card->state != CARD_STATE_SOFTSETUP))
5826 return -ENODEV;
5827 iob = qeth_wait_for_buffer(&card->write);
5828 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5829 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5830 return rc;
5831 }
5832
5833 static struct net_device *
5834 qeth_netdev_by_devno(unsigned char *read_dev_no)
5835 {
5836 struct qeth_card *card;
5837 struct net_device *ndev;
5838 unsigned char *readno;
5839 __u16 temp_dev_no, card_dev_no;
5840 char *endp;
5841 unsigned long flags;
5842
5843 ndev = NULL;
5844 memcpy(&temp_dev_no, read_dev_no, 2);
5845 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5846 list_for_each_entry(card, &qeth_card_list.list, list) {
5847 readno = CARD_RDEV_ID(card);
5848 readno += (strlen(readno) - 4);
5849 card_dev_no = simple_strtoul(readno, &endp, 16);
5850 if (card_dev_no == temp_dev_no) {
5851 ndev = card->dev;
5852 break;
5853 }
5854 }
5855 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5856 return ndev;
5857 }
5858
5859 int
5860 qeth_osn_register(unsigned char *read_dev_no,
5861 struct net_device **dev,
5862 int (*assist_cb)(struct net_device *, void *),
5863 int (*data_cb)(struct sk_buff *))
5864 {
5865 struct qeth_card * card;
5866
5867 QETH_DBF_TEXT(trace, 2, "osnreg");
5868 *dev = qeth_netdev_by_devno(read_dev_no);
5869 if (*dev == NULL)
5870 return -ENODEV;
5871 card = (struct qeth_card *)(*dev)->priv;
5872 if (!card)
5873 return -ENODEV;
5874 if ((assist_cb == NULL) || (data_cb == NULL))
5875 return -EINVAL;
5876 card->osn_info.assist_cb = assist_cb;
5877 card->osn_info.data_cb = data_cb;
5878 return 0;
5879 }
5880
5881 void
5882 qeth_osn_deregister(struct net_device * dev)
5883 {
5884 struct qeth_card *card;
5885
5886 QETH_DBF_TEXT(trace, 2, "osndereg");
5887 if (!dev)
5888 return;
5889 card = (struct qeth_card *)dev->priv;
5890 if (!card)
5891 return;
5892 card->osn_info.assist_cb = NULL;
5893 card->osn_info.data_cb = NULL;
5894 return;
5895 }
5896
5897 static void
5898 qeth_delete_mc_addresses(struct qeth_card *card)
5899 {
5900 struct qeth_ipaddr *iptodo;
5901 unsigned long flags;
5902
5903 QETH_DBF_TEXT(trace,4,"delmc");
5904 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5905 if (!iptodo) {
5906 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5907 return;
5908 }
5909 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5910 spin_lock_irqsave(&card->ip_lock, flags);
5911 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5912 kfree(iptodo);
5913 spin_unlock_irqrestore(&card->ip_lock, flags);
5914 }
5915
5916 static void
5917 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5918 {
5919 struct qeth_ipaddr *ipm;
5920 struct ip_mc_list *im4;
5921 char buf[MAX_ADDR_LEN];
5922
5923 QETH_DBF_TEXT(trace,4,"addmc");
5924 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5925 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5926 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5927 if (!ipm)
5928 continue;
5929 ipm->u.a4.addr = im4->multiaddr;
5930 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5931 ipm->is_multicast = 1;
5932 if (!qeth_add_ip(card,ipm))
5933 kfree(ipm);
5934 }
5935 }
5936
5937 static inline void
5938 qeth_add_vlan_mc(struct qeth_card *card)
5939 {
5940 #ifdef CONFIG_QETH_VLAN
5941 struct in_device *in_dev;
5942 struct vlan_group *vg;
5943 int i;
5944
5945 QETH_DBF_TEXT(trace,4,"addmcvl");
5946 if ( ((card->options.layer2 == 0) &&
5947 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5948 (card->vlangrp == NULL) )
5949 return ;
5950
5951 vg = card->vlangrp;
5952 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5953 struct net_device *netdev = vlan_group_get_device(vg, i);
5954 if (netdev == NULL ||
5955 !(netdev->flags & IFF_UP))
5956 continue;
5957 in_dev = in_dev_get(netdev);
5958 if (!in_dev)
5959 continue;
5960 read_lock(&in_dev->mc_list_lock);
5961 qeth_add_mc(card,in_dev);
5962 read_unlock(&in_dev->mc_list_lock);
5963 in_dev_put(in_dev);
5964 }
5965 #endif
5966 }
5967
5968 static void
5969 qeth_add_multicast_ipv4(struct qeth_card *card)
5970 {
5971 struct in_device *in4_dev;
5972
5973 QETH_DBF_TEXT(trace,4,"chkmcv4");
5974 in4_dev = in_dev_get(card->dev);
5975 if (in4_dev == NULL)
5976 return;
5977 read_lock(&in4_dev->mc_list_lock);
5978 qeth_add_mc(card, in4_dev);
5979 qeth_add_vlan_mc(card);
5980 read_unlock(&in4_dev->mc_list_lock);
5981 in_dev_put(in4_dev);
5982 }
5983
5984 static void
5985 qeth_layer2_add_multicast(struct qeth_card *card)
5986 {
5987 struct qeth_ipaddr *ipm;
5988 struct dev_mc_list *dm;
5989
5990 QETH_DBF_TEXT(trace,4,"L2addmc");
5991 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5992 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5993 if (!ipm)
5994 continue;
5995 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5996 ipm->is_multicast = 1;
5997 if (!qeth_add_ip(card, ipm))
5998 kfree(ipm);
5999 }
6000 }
6001
6002 #ifdef CONFIG_QETH_IPV6
6003 static void
6004 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
6005 {
6006 struct qeth_ipaddr *ipm;
6007 struct ifmcaddr6 *im6;
6008 char buf[MAX_ADDR_LEN];
6009
6010 QETH_DBF_TEXT(trace,4,"addmc6");
6011 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
6012 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
6013 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
6014 if (!ipm)
6015 continue;
6016 ipm->is_multicast = 1;
6017 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
6018 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
6019 sizeof(struct in6_addr));
6020 if (!qeth_add_ip(card,ipm))
6021 kfree(ipm);
6022 }
6023 }
6024
6025 static inline void
6026 qeth_add_vlan_mc6(struct qeth_card *card)
6027 {
6028 #ifdef CONFIG_QETH_VLAN
6029 struct inet6_dev *in_dev;
6030 struct vlan_group *vg;
6031 int i;
6032
6033 QETH_DBF_TEXT(trace,4,"admc6vl");
6034 if ( ((card->options.layer2 == 0) &&
6035 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
6036 (card->vlangrp == NULL))
6037 return ;
6038
6039 vg = card->vlangrp;
6040 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
6041 struct net_device *netdev = vlan_group_get_device(vg, i);
6042 if (netdev == NULL ||
6043 !(netdev->flags & IFF_UP))
6044 continue;
6045 in_dev = in6_dev_get(netdev);
6046 if (!in_dev)
6047 continue;
6048 read_lock_bh(&in_dev->lock);
6049 qeth_add_mc6(card,in_dev);
6050 read_unlock_bh(&in_dev->lock);
6051 in6_dev_put(in_dev);
6052 }
6053 #endif /* CONFIG_QETH_VLAN */
6054 }
6055
6056 static void
6057 qeth_add_multicast_ipv6(struct qeth_card *card)
6058 {
6059 struct inet6_dev *in6_dev;
6060
6061 QETH_DBF_TEXT(trace,4,"chkmcv6");
6062 if (!qeth_is_supported(card, IPA_IPV6))
6063 return ;
6064 in6_dev = in6_dev_get(card->dev);
6065 if (in6_dev == NULL)
6066 return;
6067 read_lock_bh(&in6_dev->lock);
6068 qeth_add_mc6(card, in6_dev);
6069 qeth_add_vlan_mc6(card);
6070 read_unlock_bh(&in6_dev->lock);
6071 in6_dev_put(in6_dev);
6072 }
6073 #endif /* CONFIG_QETH_IPV6 */
6074
6075 static int
6076 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
6077 enum qeth_ipa_cmds ipacmd,
6078 int (*reply_cb) (struct qeth_card *,
6079 struct qeth_reply*,
6080 unsigned long))
6081 {
6082 struct qeth_ipa_cmd *cmd;
6083 struct qeth_cmd_buffer *iob;
6084
6085 QETH_DBF_TEXT(trace, 2, "L2sdmac");
6086 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
6087 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6088 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
6089 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
6090 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
6091 }
6092
6093 static int
6094 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
6095 struct qeth_reply *reply,
6096 unsigned long data)
6097 {
6098 struct qeth_ipa_cmd *cmd;
6099 __u8 *mac;
6100
6101 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
6102 cmd = (struct qeth_ipa_cmd *) data;
6103 mac = &cmd->data.setdelmac.mac[0];
6104 /* MAC already registered, needed in couple/uncouple case */
6105 if (cmd->hdr.return_code == 0x2005) {
6106 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
6107 "already existing on %s \n",
6108 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6109 QETH_CARD_IFNAME(card));
6110 cmd->hdr.return_code = 0;
6111 }
6112 if (cmd->hdr.return_code)
6113 PRINT_ERR("Could not set group MAC " \
6114 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6115 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6116 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
6117 return 0;
6118 }
6119
6120 static int
6121 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
6122 {
6123 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
6124 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
6125 qeth_layer2_send_setgroupmac_cb);
6126 }
6127
6128 static int
6129 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
6130 struct qeth_reply *reply,
6131 unsigned long data)
6132 {
6133 struct qeth_ipa_cmd *cmd;
6134 __u8 *mac;
6135
6136 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
6137 cmd = (struct qeth_ipa_cmd *) data;
6138 mac = &cmd->data.setdelmac.mac[0];
6139 if (cmd->hdr.return_code)
6140 PRINT_ERR("Could not delete group MAC " \
6141 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6142 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6143 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
6144 return 0;
6145 }
6146
6147 static int
6148 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
6149 {
6150 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
6151 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
6152 qeth_layer2_send_delgroupmac_cb);
6153 }
6154
6155 static int
6156 qeth_layer2_send_setmac_cb(struct qeth_card *card,
6157 struct qeth_reply *reply,
6158 unsigned long data)
6159 {
6160 struct qeth_ipa_cmd *cmd;
6161
6162 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
6163 cmd = (struct qeth_ipa_cmd *) data;
6164 if (cmd->hdr.return_code) {
6165 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
6166 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6167 cmd->hdr.return_code = -EIO;
6168 } else {
6169 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
6170 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
6171 OSA_ADDR_LEN);
6172 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
6173 "successfully registered on device %s\n",
6174 card->dev->dev_addr[0], card->dev->dev_addr[1],
6175 card->dev->dev_addr[2], card->dev->dev_addr[3],
6176 card->dev->dev_addr[4], card->dev->dev_addr[5],
6177 card->dev->name);
6178 }
6179 return 0;
6180 }
6181
6182 static int
6183 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
6184 {
6185 QETH_DBF_TEXT(trace, 2, "L2Setmac");
6186 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
6187 qeth_layer2_send_setmac_cb);
6188 }
6189
6190 static int
6191 qeth_layer2_send_delmac_cb(struct qeth_card *card,
6192 struct qeth_reply *reply,
6193 unsigned long data)
6194 {
6195 struct qeth_ipa_cmd *cmd;
6196
6197 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6198 cmd = (struct qeth_ipa_cmd *) data;
6199 if (cmd->hdr.return_code) {
6200 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6201 cmd->hdr.return_code = -EIO;
6202 return 0;
6203 }
6204 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6205
6206 return 0;
6207 }
6208 static int
6209 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6210 {
6211 QETH_DBF_TEXT(trace, 2, "L2Delmac");
6212 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6213 return 0;
6214 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6215 qeth_layer2_send_delmac_cb);
6216 }
6217
6218 static int
6219 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6220 {
6221 struct sockaddr *addr = p;
6222 struct qeth_card *card;
6223 int rc = 0;
6224
6225 QETH_DBF_TEXT(trace, 3, "setmac");
6226
6227 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6228 QETH_DBF_TEXT(trace, 3, "setmcINV");
6229 return -EOPNOTSUPP;
6230 }
6231 card = (struct qeth_card *) dev->priv;
6232
6233 if (!card->options.layer2) {
6234 PRINT_WARN("Setting MAC address on %s is not supported "
6235 "in Layer 3 mode.\n", dev->name);
6236 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6237 return -EOPNOTSUPP;
6238 }
6239 if (card->info.type == QETH_CARD_TYPE_OSN) {
6240 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6241 dev->name);
6242 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6243 return -EOPNOTSUPP;
6244 }
6245 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6246 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6247 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6248 if (!rc)
6249 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6250 return rc;
6251 }
6252
6253 static void
6254 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6255 __u8 command, enum qeth_prot_versions prot)
6256 {
6257 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6258 cmd->hdr.command = command;
6259 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6260 cmd->hdr.seqno = card->seqno.ipa;
6261 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6262 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6263 if (card->options.layer2)
6264 cmd->hdr.prim_version_no = 2;
6265 else
6266 cmd->hdr.prim_version_no = 1;
6267 cmd->hdr.param_count = 1;
6268 cmd->hdr.prot_version = prot;
6269 cmd->hdr.ipa_supported = 0;
6270 cmd->hdr.ipa_enabled = 0;
6271 }
6272
6273 static struct qeth_cmd_buffer *
6274 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6275 enum qeth_prot_versions prot)
6276 {
6277 struct qeth_cmd_buffer *iob;
6278 struct qeth_ipa_cmd *cmd;
6279
6280 iob = qeth_wait_for_buffer(&card->write);
6281 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6282 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6283
6284 return iob;
6285 }
6286
6287 static int
6288 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6289 {
6290 int rc;
6291 struct qeth_cmd_buffer *iob;
6292 struct qeth_ipa_cmd *cmd;
6293
6294 QETH_DBF_TEXT(trace,4,"setdelmc");
6295
6296 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6297 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6298 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6299 if (addr->proto == QETH_PROT_IPV6)
6300 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6301 sizeof(struct in6_addr));
6302 else
6303 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6304
6305 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6306
6307 return rc;
6308 }
6309 static void
6310 qeth_fill_netmask(u8 *netmask, unsigned int len)
6311 {
6312 int i,j;
6313 for (i=0;i<16;i++) {
6314 j=(len)-(i*8);
6315 if (j >= 8)
6316 netmask[i] = 0xff;
6317 else if (j > 0)
6318 netmask[i] = (u8)(0xFF00>>j);
6319 else
6320 netmask[i] = 0;
6321 }
6322 }
6323
6324 static int
6325 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6326 int ipacmd, unsigned int flags)
6327 {
6328 int rc;
6329 struct qeth_cmd_buffer *iob;
6330 struct qeth_ipa_cmd *cmd;
6331 __u8 netmask[16];
6332
6333 QETH_DBF_TEXT(trace,4,"setdelip");
6334 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6335
6336 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6337 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6338 if (addr->proto == QETH_PROT_IPV6) {
6339 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6340 sizeof(struct in6_addr));
6341 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6342 memcpy(cmd->data.setdelip6.mask, netmask,
6343 sizeof(struct in6_addr));
6344 cmd->data.setdelip6.flags = flags;
6345 } else {
6346 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6347 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6348 cmd->data.setdelip4.flags = flags;
6349 }
6350
6351 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6352
6353 return rc;
6354 }
6355
6356 static int
6357 qeth_layer2_register_addr_entry(struct qeth_card *card,
6358 struct qeth_ipaddr *addr)
6359 {
6360 if (!addr->is_multicast)
6361 return 0;
6362 QETH_DBF_TEXT(trace, 2, "setgmac");
6363 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6364 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6365 }
6366
6367 static int
6368 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6369 struct qeth_ipaddr *addr)
6370 {
6371 if (!addr->is_multicast)
6372 return 0;
6373 QETH_DBF_TEXT(trace, 2, "delgmac");
6374 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6375 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6376 }
6377
6378 static int
6379 qeth_layer3_register_addr_entry(struct qeth_card *card,
6380 struct qeth_ipaddr *addr)
6381 {
6382 char buf[50];
6383 int rc;
6384 int cnt = 3;
6385
6386 if (addr->proto == QETH_PROT_IPV4) {
6387 QETH_DBF_TEXT(trace, 2,"setaddr4");
6388 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6389 } else if (addr->proto == QETH_PROT_IPV6) {
6390 QETH_DBF_TEXT(trace, 2, "setaddr6");
6391 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6392 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6393 } else {
6394 QETH_DBF_TEXT(trace, 2, "setaddr?");
6395 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6396 }
6397 do {
6398 if (addr->is_multicast)
6399 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6400 else
6401 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6402 addr->set_flags);
6403 if (rc)
6404 QETH_DBF_TEXT(trace, 2, "failed");
6405 } while ((--cnt > 0) && rc);
6406 if (rc){
6407 QETH_DBF_TEXT(trace, 2, "FAILED");
6408 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6409 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6410 buf, rc, rc);
6411 }
6412 return rc;
6413 }
6414
6415 static int
6416 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6417 struct qeth_ipaddr *addr)
6418 {
6419 //char buf[50];
6420 int rc;
6421
6422 if (addr->proto == QETH_PROT_IPV4) {
6423 QETH_DBF_TEXT(trace, 2,"deladdr4");
6424 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6425 } else if (addr->proto == QETH_PROT_IPV6) {
6426 QETH_DBF_TEXT(trace, 2, "deladdr6");
6427 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6428 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6429 } else {
6430 QETH_DBF_TEXT(trace, 2, "deladdr?");
6431 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6432 }
6433 if (addr->is_multicast)
6434 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6435 else
6436 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6437 addr->del_flags);
6438 if (rc) {
6439 QETH_DBF_TEXT(trace, 2, "failed");
6440 /* TODO: re-activate this warning as soon as we have a
6441 * clean mirco code
6442 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6443 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6444 buf, rc);
6445 */
6446 }
6447 return rc;
6448 }
6449
6450 static int
6451 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6452 {
6453 if (card->options.layer2)
6454 return qeth_layer2_register_addr_entry(card, addr);
6455
6456 return qeth_layer3_register_addr_entry(card, addr);
6457 }
6458
6459 static int
6460 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6461 {
6462 if (card->options.layer2)
6463 return qeth_layer2_deregister_addr_entry(card, addr);
6464
6465 return qeth_layer3_deregister_addr_entry(card, addr);
6466 }
6467
6468 static u32
6469 qeth_ethtool_get_tx_csum(struct net_device *dev)
6470 {
6471 return (dev->features & NETIF_F_HW_CSUM) != 0;
6472 }
6473
6474 static int
6475 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6476 {
6477 if (data)
6478 dev->features |= NETIF_F_HW_CSUM;
6479 else
6480 dev->features &= ~NETIF_F_HW_CSUM;
6481
6482 return 0;
6483 }
6484
6485 static u32
6486 qeth_ethtool_get_rx_csum(struct net_device *dev)
6487 {
6488 struct qeth_card *card = (struct qeth_card *)dev->priv;
6489
6490 return (card->options.checksum_type == HW_CHECKSUMMING);
6491 }
6492
6493 static int
6494 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6495 {
6496 struct qeth_card *card = (struct qeth_card *)dev->priv;
6497
6498 if ((card->state != CARD_STATE_DOWN) &&
6499 (card->state != CARD_STATE_RECOVER))
6500 return -EPERM;
6501 if (data)
6502 card->options.checksum_type = HW_CHECKSUMMING;
6503 else
6504 card->options.checksum_type = SW_CHECKSUMMING;
6505 return 0;
6506 }
6507
6508 static u32
6509 qeth_ethtool_get_sg(struct net_device *dev)
6510 {
6511 struct qeth_card *card = (struct qeth_card *)dev->priv;
6512
6513 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6514 (dev->features & NETIF_F_SG));
6515 }
6516
6517 static int
6518 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6519 {
6520 struct qeth_card *card = (struct qeth_card *)dev->priv;
6521
6522 if (data) {
6523 if (card->options.large_send != QETH_LARGE_SEND_NO)
6524 dev->features |= NETIF_F_SG;
6525 else {
6526 dev->features &= ~NETIF_F_SG;
6527 return -EINVAL;
6528 }
6529 } else
6530 dev->features &= ~NETIF_F_SG;
6531 return 0;
6532 }
6533
6534 static u32
6535 qeth_ethtool_get_tso(struct net_device *dev)
6536 {
6537 struct qeth_card *card = (struct qeth_card *)dev->priv;
6538
6539 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6540 (dev->features & NETIF_F_TSO));
6541 }
6542
6543 static int
6544 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6545 {
6546 struct qeth_card *card = (struct qeth_card *)dev->priv;
6547
6548 if (data) {
6549 if (card->options.large_send != QETH_LARGE_SEND_NO)
6550 dev->features |= NETIF_F_TSO;
6551 else {
6552 dev->features &= ~NETIF_F_TSO;
6553 return -EINVAL;
6554 }
6555 } else
6556 dev->features &= ~NETIF_F_TSO;
6557 return 0;
6558 }
6559
6560 static struct ethtool_ops qeth_ethtool_ops = {
6561 .get_tx_csum = qeth_ethtool_get_tx_csum,
6562 .set_tx_csum = qeth_ethtool_set_tx_csum,
6563 .get_rx_csum = qeth_ethtool_get_rx_csum,
6564 .set_rx_csum = qeth_ethtool_set_rx_csum,
6565 .get_sg = qeth_ethtool_get_sg,
6566 .set_sg = qeth_ethtool_set_sg,
6567 .get_tso = qeth_ethtool_get_tso,
6568 .set_tso = qeth_ethtool_set_tso,
6569 };
6570
6571 static int
6572 qeth_hard_header_parse(const struct sk_buff *skb, unsigned char *haddr)
6573 {
6574 const struct qeth_card *card;
6575 const struct ethhdr *eth;
6576
6577 if (dev->type != ARPHRD_IEEE802_TR)
6578 return 0;
6579
6580 card = qeth_get_card_from_dev(skb->dev);
6581 if (card->options.layer2)
6582 goto haveheader;
6583 #ifdef CONFIG_QETH_IPV6
6584 /* cause of the manipulated arp constructor and the ARP
6585 flag for OSAE devices we have some nasty exceptions */
6586 if (card->info.type == QETH_CARD_TYPE_OSAE) {
6587 if (!card->options.fake_ll) {
6588 if ((skb->pkt_type==PACKET_OUTGOING) &&
6589 (skb->protocol==ETH_P_IPV6))
6590 goto haveheader;
6591 else
6592 return 0;
6593 } else {
6594 if ((skb->pkt_type==PACKET_OUTGOING) &&
6595 (skb->protocol==ETH_P_IP))
6596 return 0;
6597 else
6598 goto haveheader;
6599 }
6600 }
6601 #endif
6602 if (!card->options.fake_ll)
6603 return 0;
6604 haveheader:
6605 eth = eth_hdr(skb);
6606 memcpy(haddr, eth->h_source, ETH_ALEN);
6607 return ETH_ALEN;
6608 }
6609
6610 static const struct header_ops qeth_null_ops = {
6611 .parse = qeth_hard_header_parse,
6612 };
6613
6614 static int
6615 qeth_netdev_init(struct net_device *dev)
6616 {
6617 struct qeth_card *card;
6618
6619 card = (struct qeth_card *) dev->priv;
6620
6621 QETH_DBF_TEXT(trace,3,"initdev");
6622
6623 dev->tx_timeout = &qeth_tx_timeout;
6624 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6625 dev->open = qeth_open;
6626 dev->stop = qeth_stop;
6627 dev->hard_start_xmit = qeth_hard_start_xmit;
6628 dev->do_ioctl = qeth_do_ioctl;
6629 dev->get_stats = qeth_get_stats;
6630 dev->change_mtu = qeth_change_mtu;
6631 dev->neigh_setup = qeth_neigh_setup;
6632 dev->set_multicast_list = qeth_set_multicast_list;
6633 #ifdef CONFIG_QETH_VLAN
6634 dev->vlan_rx_register = qeth_vlan_rx_register;
6635 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6636 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6637 #endif
6638 dev->header_ops = &qeth_null_ops;
6639
6640 #ifdef CONFIG_QETH_IPV6
6641 /*IPv6 address autoconfiguration stuff*/
6642 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6643 card->dev->dev_id = card->info.unique_id & 0xffff;
6644 #endif
6645 if (card->options.fake_ll &&
6646 (qeth_get_netdev_flags(card) & IFF_NOARP))
6647 dev->header_ops = &qeth_fake_ops;
6648
6649 dev->set_mac_address = qeth_layer2_set_mac_address;
6650 dev->flags |= qeth_get_netdev_flags(card);
6651 if ((card->options.fake_broadcast) ||
6652 (card->info.broadcast_capable))
6653 dev->flags |= IFF_BROADCAST;
6654 dev->hard_header_len =
6655 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6656 dev->addr_len = OSA_ADDR_LEN;
6657 dev->mtu = card->info.initial_mtu;
6658 if (card->info.type != QETH_CARD_TYPE_OSN)
6659 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6660 return 0;
6661 }
6662
6663 static void
6664 qeth_init_func_level(struct qeth_card *card)
6665 {
6666 if (card->ipato.enabled) {
6667 if (card->info.type == QETH_CARD_TYPE_IQD)
6668 card->info.func_level =
6669 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6670 else
6671 card->info.func_level =
6672 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6673 } else {
6674 if (card->info.type == QETH_CARD_TYPE_IQD)
6675 /*FIXME:why do we have same values for dis and ena for osae??? */
6676 card->info.func_level =
6677 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6678 else
6679 card->info.func_level =
6680 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6681 }
6682 }
6683
6684 /**
6685 * hardsetup card, initialize MPC and QDIO stuff
6686 */
6687 static int
6688 qeth_hardsetup_card(struct qeth_card *card)
6689 {
6690 int retries = 3;
6691 int rc;
6692
6693 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6694
6695 atomic_set(&card->force_alloc_skb, 0);
6696 retry:
6697 if (retries < 3){
6698 PRINT_WARN("Retrying to do IDX activates.\n");
6699 ccw_device_set_offline(CARD_DDEV(card));
6700 ccw_device_set_offline(CARD_WDEV(card));
6701 ccw_device_set_offline(CARD_RDEV(card));
6702 ccw_device_set_online(CARD_RDEV(card));
6703 ccw_device_set_online(CARD_WDEV(card));
6704 ccw_device_set_online(CARD_DDEV(card));
6705 }
6706 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6707 if (rc == -ERESTARTSYS) {
6708 QETH_DBF_TEXT(setup, 2, "break1");
6709 return rc;
6710 } else if (rc) {
6711 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6712 if (--retries < 0)
6713 goto out;
6714 else
6715 goto retry;
6716 }
6717 if ((rc = qeth_get_unitaddr(card))){
6718 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6719 return rc;
6720 }
6721 qeth_init_tokens(card);
6722 qeth_init_func_level(card);
6723 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6724 if (rc == -ERESTARTSYS) {
6725 QETH_DBF_TEXT(setup, 2, "break2");
6726 return rc;
6727 } else if (rc) {
6728 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6729 if (--retries < 0)
6730 goto out;
6731 else
6732 goto retry;
6733 }
6734 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6735 if (rc == -ERESTARTSYS) {
6736 QETH_DBF_TEXT(setup, 2, "break3");
6737 return rc;
6738 } else if (rc) {
6739 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6740 if (--retries < 0)
6741 goto out;
6742 else
6743 goto retry;
6744 }
6745 if ((rc = qeth_mpc_initialize(card))){
6746 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6747 goto out;
6748 }
6749 /*network device will be recovered*/
6750 if (card->dev) {
6751 card->dev->header_ops = card->orig_header_ops;
6752 if (card->options.fake_ll &&
6753 (qeth_get_netdev_flags(card) & IFF_NOARP))
6754 card->dev->header_ops = &qeth_fake_ops;
6755 return 0;
6756 }
6757 /* at first set_online allocate netdev */
6758 card->dev = qeth_get_netdevice(card->info.type,
6759 card->info.link_type);
6760 if (!card->dev){
6761 qeth_qdio_clear_card(card, card->info.type !=
6762 QETH_CARD_TYPE_IQD);
6763 rc = -ENODEV;
6764 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6765 goto out;
6766 }
6767 card->dev->priv = card;
6768 card->orig_header_ops = card->dev->header_ops;
6769 card->dev->type = qeth_get_arphdr_type(card->info.type,
6770 card->info.link_type);
6771 card->dev->init = qeth_netdev_init;
6772 return 0;
6773 out:
6774 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6775 return rc;
6776 }
6777
6778 static int
6779 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6780 unsigned long data)
6781 {
6782 struct qeth_ipa_cmd *cmd;
6783
6784 QETH_DBF_TEXT(trace,4,"defadpcb");
6785
6786 cmd = (struct qeth_ipa_cmd *) data;
6787 if (cmd->hdr.return_code == 0){
6788 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6789 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6790 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6791 #ifdef CONFIG_QETH_IPV6
6792 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6793 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6794 #endif
6795 }
6796 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6797 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6798 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6799 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6800 }
6801 return 0;
6802 }
6803
6804 static int
6805 qeth_default_setadapterparms_cb(struct qeth_card *card,
6806 struct qeth_reply *reply,
6807 unsigned long data)
6808 {
6809 struct qeth_ipa_cmd *cmd;
6810
6811 QETH_DBF_TEXT(trace,4,"defadpcb");
6812
6813 cmd = (struct qeth_ipa_cmd *) data;
6814 if (cmd->hdr.return_code == 0)
6815 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6816 return 0;
6817 }
6818
6819
6820
6821 static int
6822 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6823 unsigned long data)
6824 {
6825 struct qeth_ipa_cmd *cmd;
6826
6827 QETH_DBF_TEXT(trace,3,"quyadpcb");
6828
6829 cmd = (struct qeth_ipa_cmd *) data;
6830 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6831 card->info.link_type =
6832 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6833 card->options.adp.supported_funcs =
6834 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6835 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6836 }
6837
6838 static int
6839 qeth_query_setadapterparms(struct qeth_card *card)
6840 {
6841 int rc;
6842 struct qeth_cmd_buffer *iob;
6843
6844 QETH_DBF_TEXT(trace,3,"queryadp");
6845 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6846 sizeof(struct qeth_ipacmd_setadpparms));
6847 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6848 return rc;
6849 }
6850
6851 static int
6852 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6853 struct qeth_reply *reply,
6854 unsigned long data)
6855 {
6856 struct qeth_ipa_cmd *cmd;
6857
6858 QETH_DBF_TEXT(trace,4,"chgmaccb");
6859
6860 cmd = (struct qeth_ipa_cmd *) data;
6861 if (!card->options.layer2 ||
6862 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6863 memcpy(card->dev->dev_addr,
6864 &cmd->data.setadapterparms.data.change_addr.addr,
6865 OSA_ADDR_LEN);
6866 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6867 }
6868 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6869 return 0;
6870 }
6871
6872 static int
6873 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6874 {
6875 int rc;
6876 struct qeth_cmd_buffer *iob;
6877 struct qeth_ipa_cmd *cmd;
6878
6879 QETH_DBF_TEXT(trace,4,"chgmac");
6880
6881 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6882 sizeof(struct qeth_ipacmd_setadpparms));
6883 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6884 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6885 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6886 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6887 card->dev->dev_addr, OSA_ADDR_LEN);
6888 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6889 NULL);
6890 return rc;
6891 }
6892
6893 static int
6894 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6895 {
6896 int rc;
6897 struct qeth_cmd_buffer *iob;
6898 struct qeth_ipa_cmd *cmd;
6899
6900 QETH_DBF_TEXT(trace,4,"adpmode");
6901
6902 iob = qeth_get_adapter_cmd(card, command,
6903 sizeof(struct qeth_ipacmd_setadpparms));
6904 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6905 cmd->data.setadapterparms.data.mode = mode;
6906 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6907 NULL);
6908 return rc;
6909 }
6910
6911 static int
6912 qeth_setadapter_hstr(struct qeth_card *card)
6913 {
6914 int rc;
6915
6916 QETH_DBF_TEXT(trace,4,"adphstr");
6917
6918 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6919 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6920 card->options.broadcast_mode);
6921 if (rc)
6922 PRINT_WARN("couldn't set broadcast mode on "
6923 "device %s: x%x\n",
6924 CARD_BUS_ID(card), rc);
6925 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6926 card->options.macaddr_mode);
6927 if (rc)
6928 PRINT_WARN("couldn't set macaddr mode on "
6929 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6930 return rc;
6931 }
6932 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6933 PRINT_WARN("set adapter parameters not available "
6934 "to set broadcast mode, using ALLRINGS "
6935 "on device %s:\n", CARD_BUS_ID(card));
6936 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6937 PRINT_WARN("set adapter parameters not available "
6938 "to set macaddr mode, using NONCANONICAL "
6939 "on device %s:\n", CARD_BUS_ID(card));
6940 return 0;
6941 }
6942
6943 static int
6944 qeth_setadapter_parms(struct qeth_card *card)
6945 {
6946 int rc;
6947
6948 QETH_DBF_TEXT(setup, 2, "setadprm");
6949
6950 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6951 PRINT_WARN("set adapter parameters not supported "
6952 "on device %s.\n",
6953 CARD_BUS_ID(card));
6954 QETH_DBF_TEXT(setup, 2, " notsupp");
6955 return 0;
6956 }
6957 rc = qeth_query_setadapterparms(card);
6958 if (rc) {
6959 PRINT_WARN("couldn't set adapter parameters on device %s: "
6960 "x%x\n", CARD_BUS_ID(card), rc);
6961 return rc;
6962 }
6963 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6964 rc = qeth_setadpparms_change_macaddr(card);
6965 if (rc)
6966 PRINT_WARN("couldn't get MAC address on "
6967 "device %s: x%x\n",
6968 CARD_BUS_ID(card), rc);
6969 }
6970
6971 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6972 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6973 rc = qeth_setadapter_hstr(card);
6974
6975 return rc;
6976 }
6977
6978 static int
6979 qeth_layer2_initialize(struct qeth_card *card)
6980 {
6981 int rc = 0;
6982
6983
6984 QETH_DBF_TEXT(setup, 2, "doL2init");
6985 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6986
6987 rc = qeth_query_setadapterparms(card);
6988 if (rc) {
6989 PRINT_WARN("could not query adapter parameters on device %s: "
6990 "x%x\n", CARD_BUS_ID(card), rc);
6991 }
6992
6993 rc = qeth_setadpparms_change_macaddr(card);
6994 if (rc) {
6995 PRINT_WARN("couldn't get MAC address on "
6996 "device %s: x%x\n",
6997 CARD_BUS_ID(card), rc);
6998 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6999 return rc;
7000 }
7001 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
7002
7003 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
7004 if (rc)
7005 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
7006 return 0;
7007 }
7008
7009
7010 static int
7011 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
7012 enum qeth_prot_versions prot)
7013 {
7014 int rc;
7015 struct qeth_cmd_buffer *iob;
7016
7017 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
7018 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7019
7020 return rc;
7021 }
7022
7023 static int
7024 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
7025 {
7026 int rc;
7027
7028 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
7029
7030 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
7031 return rc;
7032 }
7033
7034 static int
7035 qeth_send_stoplan(struct qeth_card *card)
7036 {
7037 int rc = 0;
7038
7039 /*
7040 * TODO: according to the IPA format document page 14,
7041 * TCP/IP (we!) never issue a STOPLAN
7042 * is this right ?!?
7043 */
7044 QETH_DBF_TEXT(trace, 2, "stoplan");
7045
7046 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
7047 return rc;
7048 }
7049
7050 static int
7051 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
7052 unsigned long data)
7053 {
7054 struct qeth_ipa_cmd *cmd;
7055
7056 QETH_DBF_TEXT(setup, 2, "qipasscb");
7057
7058 cmd = (struct qeth_ipa_cmd *) data;
7059 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
7060 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
7061 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
7062 /* Disable IPV6 support hard coded for Hipersockets */
7063 if(card->info.type == QETH_CARD_TYPE_IQD)
7064 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
7065 } else {
7066 #ifdef CONFIG_QETH_IPV6
7067 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
7068 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
7069 #endif
7070 }
7071 QETH_DBF_TEXT(setup, 2, "suppenbl");
7072 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
7073 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
7074 return 0;
7075 }
7076
7077 static int
7078 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
7079 {
7080 int rc;
7081 struct qeth_cmd_buffer *iob;
7082
7083 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
7084 if (card->options.layer2) {
7085 QETH_DBF_TEXT(setup, 2, "noprmly2");
7086 return -EPERM;
7087 }
7088
7089 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
7090 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
7091 return rc;
7092 }
7093
7094 static struct qeth_cmd_buffer *
7095 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
7096 __u16 cmd_code, __u16 len,
7097 enum qeth_prot_versions prot)
7098 {
7099 struct qeth_cmd_buffer *iob;
7100 struct qeth_ipa_cmd *cmd;
7101
7102 QETH_DBF_TEXT(trace,4,"getasscm");
7103 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
7104
7105 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7106 cmd->data.setassparms.hdr.assist_no = ipa_func;
7107 cmd->data.setassparms.hdr.length = 8 + len;
7108 cmd->data.setassparms.hdr.command_code = cmd_code;
7109 cmd->data.setassparms.hdr.return_code = 0;
7110 cmd->data.setassparms.hdr.seq_no = 0;
7111
7112 return iob;
7113 }
7114
7115 static int
7116 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
7117 __u16 len, long data,
7118 int (*reply_cb)
7119 (struct qeth_card *,struct qeth_reply *,unsigned long),
7120 void *reply_param)
7121 {
7122 int rc;
7123 struct qeth_ipa_cmd *cmd;
7124
7125 QETH_DBF_TEXT(trace,4,"sendassp");
7126
7127 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7128 if (len <= sizeof(__u32))
7129 cmd->data.setassparms.data.flags_32bit = (__u32) data;
7130 else /* (len > sizeof(__u32)) */
7131 memcpy(&cmd->data.setassparms.data, (void *) data, len);
7132
7133 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
7134 return rc;
7135 }
7136
7137 #ifdef CONFIG_QETH_IPV6
7138 static int
7139 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
7140 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
7141
7142 {
7143 int rc;
7144 struct qeth_cmd_buffer *iob;
7145
7146 QETH_DBF_TEXT(trace,4,"simassp6");
7147 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7148 0, QETH_PROT_IPV6);
7149 rc = qeth_send_setassparms(card, iob, 0, 0,
7150 qeth_default_setassparms_cb, NULL);
7151 return rc;
7152 }
7153 #endif
7154
7155 static int
7156 qeth_send_simple_setassparms(struct qeth_card *card,
7157 enum qeth_ipa_funcs ipa_func,
7158 __u16 cmd_code, long data)
7159 {
7160 int rc;
7161 int length = 0;
7162 struct qeth_cmd_buffer *iob;
7163
7164 QETH_DBF_TEXT(trace,4,"simassp4");
7165 if (data)
7166 length = sizeof(__u32);
7167 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7168 length, QETH_PROT_IPV4);
7169 rc = qeth_send_setassparms(card, iob, length, data,
7170 qeth_default_setassparms_cb, NULL);
7171 return rc;
7172 }
7173
7174 static int
7175 qeth_start_ipa_arp_processing(struct qeth_card *card)
7176 {
7177 int rc;
7178
7179 QETH_DBF_TEXT(trace,3,"ipaarp");
7180
7181 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
7182 PRINT_WARN("ARP processing not supported "
7183 "on %s!\n", QETH_CARD_IFNAME(card));
7184 return 0;
7185 }
7186 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
7187 IPA_CMD_ASS_START, 0);
7188 if (rc) {
7189 PRINT_WARN("Could not start ARP processing "
7190 "assist on %s: 0x%x\n",
7191 QETH_CARD_IFNAME(card), rc);
7192 }
7193 return rc;
7194 }
7195
7196 static int
7197 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
7198 {
7199 int rc;
7200
7201 QETH_DBF_TEXT(trace,3,"ipaipfrg");
7202
7203 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
7204 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
7205 QETH_CARD_IFNAME(card));
7206 return -EOPNOTSUPP;
7207 }
7208
7209 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
7210 IPA_CMD_ASS_START, 0);
7211 if (rc) {
7212 PRINT_WARN("Could not start Hardware IP fragmentation "
7213 "assist on %s: 0x%x\n",
7214 QETH_CARD_IFNAME(card), rc);
7215 } else
7216 PRINT_INFO("Hardware IP fragmentation enabled \n");
7217 return rc;
7218 }
7219
7220 static int
7221 qeth_start_ipa_source_mac(struct qeth_card *card)
7222 {
7223 int rc;
7224
7225 QETH_DBF_TEXT(trace,3,"stsrcmac");
7226
7227 if (!card->options.fake_ll)
7228 return -EOPNOTSUPP;
7229
7230 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7231 PRINT_INFO("Inbound source address not "
7232 "supported on %s\n", QETH_CARD_IFNAME(card));
7233 return -EOPNOTSUPP;
7234 }
7235
7236 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7237 IPA_CMD_ASS_START, 0);
7238 if (rc)
7239 PRINT_WARN("Could not start inbound source "
7240 "assist on %s: 0x%x\n",
7241 QETH_CARD_IFNAME(card), rc);
7242 return rc;
7243 }
7244
7245 static int
7246 qeth_start_ipa_vlan(struct qeth_card *card)
7247 {
7248 int rc = 0;
7249
7250 QETH_DBF_TEXT(trace,3,"strtvlan");
7251
7252 #ifdef CONFIG_QETH_VLAN
7253 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7254 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7255 return -EOPNOTSUPP;
7256 }
7257
7258 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7259 IPA_CMD_ASS_START,0);
7260 if (rc) {
7261 PRINT_WARN("Could not start vlan "
7262 "assist on %s: 0x%x\n",
7263 QETH_CARD_IFNAME(card), rc);
7264 } else {
7265 PRINT_INFO("VLAN enabled \n");
7266 card->dev->features |=
7267 NETIF_F_HW_VLAN_FILTER |
7268 NETIF_F_HW_VLAN_TX |
7269 NETIF_F_HW_VLAN_RX;
7270 }
7271 #endif /* QETH_VLAN */
7272 return rc;
7273 }
7274
7275 static int
7276 qeth_start_ipa_multicast(struct qeth_card *card)
7277 {
7278 int rc;
7279
7280 QETH_DBF_TEXT(trace,3,"stmcast");
7281
7282 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7283 PRINT_WARN("Multicast not supported on %s\n",
7284 QETH_CARD_IFNAME(card));
7285 return -EOPNOTSUPP;
7286 }
7287
7288 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7289 IPA_CMD_ASS_START,0);
7290 if (rc) {
7291 PRINT_WARN("Could not start multicast "
7292 "assist on %s: rc=%i\n",
7293 QETH_CARD_IFNAME(card), rc);
7294 } else {
7295 PRINT_INFO("Multicast enabled\n");
7296 card->dev->flags |= IFF_MULTICAST;
7297 }
7298 return rc;
7299 }
7300
7301 #ifdef CONFIG_QETH_IPV6
7302 static int
7303 qeth_softsetup_ipv6(struct qeth_card *card)
7304 {
7305 int rc;
7306
7307 QETH_DBF_TEXT(trace,3,"softipv6");
7308
7309 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7310 if (rc) {
7311 PRINT_ERR("IPv6 startlan failed on %s\n",
7312 QETH_CARD_IFNAME(card));
7313 return rc;
7314 }
7315 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7316 if (rc) {
7317 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7318 QETH_CARD_IFNAME(card));
7319 return rc;
7320 }
7321 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7322 IPA_CMD_ASS_START, 3);
7323 if (rc) {
7324 PRINT_WARN("IPv6 start assist (version 4) failed "
7325 "on %s: 0x%x\n",
7326 QETH_CARD_IFNAME(card), rc);
7327 return rc;
7328 }
7329 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7330 IPA_CMD_ASS_START);
7331 if (rc) {
7332 PRINT_WARN("IPV6 start assist (version 6) failed "
7333 "on %s: 0x%x\n",
7334 QETH_CARD_IFNAME(card), rc);
7335 return rc;
7336 }
7337 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7338 IPA_CMD_ASS_START);
7339 if (rc) {
7340 PRINT_WARN("Could not enable passthrough "
7341 "on %s: 0x%x\n",
7342 QETH_CARD_IFNAME(card), rc);
7343 return rc;
7344 }
7345 PRINT_INFO("IPV6 enabled \n");
7346 return 0;
7347 }
7348
7349 #endif
7350
7351 static int
7352 qeth_start_ipa_ipv6(struct qeth_card *card)
7353 {
7354 int rc = 0;
7355 #ifdef CONFIG_QETH_IPV6
7356 QETH_DBF_TEXT(trace,3,"strtipv6");
7357
7358 if (!qeth_is_supported(card, IPA_IPV6)) {
7359 PRINT_WARN("IPv6 not supported on %s\n",
7360 QETH_CARD_IFNAME(card));
7361 return 0;
7362 }
7363 rc = qeth_softsetup_ipv6(card);
7364 #endif
7365 return rc ;
7366 }
7367
7368 static int
7369 qeth_start_ipa_broadcast(struct qeth_card *card)
7370 {
7371 int rc;
7372
7373 QETH_DBF_TEXT(trace,3,"stbrdcst");
7374 card->info.broadcast_capable = 0;
7375 if (!qeth_is_supported(card, IPA_FILTERING)) {
7376 PRINT_WARN("Broadcast not supported on %s\n",
7377 QETH_CARD_IFNAME(card));
7378 rc = -EOPNOTSUPP;
7379 goto out;
7380 }
7381 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7382 IPA_CMD_ASS_START, 0);
7383 if (rc) {
7384 PRINT_WARN("Could not enable broadcasting filtering "
7385 "on %s: 0x%x\n",
7386 QETH_CARD_IFNAME(card), rc);
7387 goto out;
7388 }
7389
7390 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7391 IPA_CMD_ASS_CONFIGURE, 1);
7392 if (rc) {
7393 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7394 QETH_CARD_IFNAME(card), rc);
7395 goto out;
7396 }
7397 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7398 PRINT_INFO("Broadcast enabled \n");
7399 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7400 IPA_CMD_ASS_ENABLE, 1);
7401 if (rc) {
7402 PRINT_WARN("Could not set up broadcast echo filtering on "
7403 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7404 goto out;
7405 }
7406 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7407 out:
7408 if (card->info.broadcast_capable)
7409 card->dev->flags |= IFF_BROADCAST;
7410 else
7411 card->dev->flags &= ~IFF_BROADCAST;
7412 return rc;
7413 }
7414
7415 static int
7416 qeth_send_checksum_command(struct qeth_card *card)
7417 {
7418 int rc;
7419
7420 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7421 IPA_CMD_ASS_START, 0);
7422 if (rc) {
7423 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7424 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7425 QETH_CARD_IFNAME(card), rc);
7426 return rc;
7427 }
7428 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7429 IPA_CMD_ASS_ENABLE,
7430 card->info.csum_mask);
7431 if (rc) {
7432 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7433 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7434 QETH_CARD_IFNAME(card), rc);
7435 return rc;
7436 }
7437 return 0;
7438 }
7439
7440 static int
7441 qeth_start_ipa_checksum(struct qeth_card *card)
7442 {
7443 int rc = 0;
7444
7445 QETH_DBF_TEXT(trace,3,"strtcsum");
7446
7447 if (card->options.checksum_type == NO_CHECKSUMMING) {
7448 PRINT_WARN("Using no checksumming on %s.\n",
7449 QETH_CARD_IFNAME(card));
7450 return 0;
7451 }
7452 if (card->options.checksum_type == SW_CHECKSUMMING) {
7453 PRINT_WARN("Using SW checksumming on %s.\n",
7454 QETH_CARD_IFNAME(card));
7455 return 0;
7456 }
7457 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7458 PRINT_WARN("Inbound HW Checksumming not "
7459 "supported on %s,\ncontinuing "
7460 "using Inbound SW Checksumming\n",
7461 QETH_CARD_IFNAME(card));
7462 card->options.checksum_type = SW_CHECKSUMMING;
7463 return 0;
7464 }
7465 rc = qeth_send_checksum_command(card);
7466 if (!rc) {
7467 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7468 }
7469 return rc;
7470 }
7471
7472 static int
7473 qeth_start_ipa_tso(struct qeth_card *card)
7474 {
7475 int rc;
7476
7477 QETH_DBF_TEXT(trace,3,"sttso");
7478
7479 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7480 PRINT_WARN("Outbound TSO not supported on %s\n",
7481 QETH_CARD_IFNAME(card));
7482 rc = -EOPNOTSUPP;
7483 } else {
7484 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7485 IPA_CMD_ASS_START,0);
7486 if (rc)
7487 PRINT_WARN("Could not start outbound TSO "
7488 "assist on %s: rc=%i\n",
7489 QETH_CARD_IFNAME(card), rc);
7490 else
7491 PRINT_INFO("Outbound TSO enabled\n");
7492 }
7493 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7494 card->options.large_send = QETH_LARGE_SEND_NO;
7495 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7496 NETIF_F_HW_CSUM);
7497 }
7498 return rc;
7499 }
7500
7501 static int
7502 qeth_start_ipassists(struct qeth_card *card)
7503 {
7504 QETH_DBF_TEXT(trace,3,"strtipas");
7505 qeth_start_ipa_arp_processing(card); /* go on*/
7506 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7507 qeth_start_ipa_source_mac(card); /* go on*/
7508 qeth_start_ipa_vlan(card); /* go on*/
7509 qeth_start_ipa_multicast(card); /* go on*/
7510 qeth_start_ipa_ipv6(card); /* go on*/
7511 qeth_start_ipa_broadcast(card); /* go on*/
7512 qeth_start_ipa_checksum(card); /* go on*/
7513 qeth_start_ipa_tso(card); /* go on*/
7514 return 0;
7515 }
7516
7517 static int
7518 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7519 enum qeth_prot_versions prot)
7520 {
7521 int rc;
7522 struct qeth_ipa_cmd *cmd;
7523 struct qeth_cmd_buffer *iob;
7524
7525 QETH_DBF_TEXT(trace,4,"setroutg");
7526 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7527 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7528 cmd->data.setrtg.type = (type);
7529 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7530
7531 return rc;
7532
7533 }
7534
7535 static void
7536 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7537 enum qeth_prot_versions prot)
7538 {
7539 if (card->info.type == QETH_CARD_TYPE_IQD) {
7540 switch (*type) {
7541 case NO_ROUTER:
7542 case PRIMARY_CONNECTOR:
7543 case SECONDARY_CONNECTOR:
7544 case MULTICAST_ROUTER:
7545 return;
7546 default:
7547 goto out_inval;
7548 }
7549 } else {
7550 switch (*type) {
7551 case NO_ROUTER:
7552 case PRIMARY_ROUTER:
7553 case SECONDARY_ROUTER:
7554 return;
7555 case MULTICAST_ROUTER:
7556 if (qeth_is_ipafunc_supported(card, prot,
7557 IPA_OSA_MC_ROUTER))
7558 return;
7559 default:
7560 goto out_inval;
7561 }
7562 }
7563 out_inval:
7564 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7565 "Router status set to 'no router'.\n",
7566 ((*type == PRIMARY_ROUTER)? "primary router" :
7567 (*type == SECONDARY_ROUTER)? "secondary router" :
7568 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7569 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7570 (*type == MULTICAST_ROUTER)? "multicast router" :
7571 "unknown"),
7572 card->dev->name);
7573 *type = NO_ROUTER;
7574 }
7575
7576 int
7577 qeth_setrouting_v4(struct qeth_card *card)
7578 {
7579 int rc;
7580
7581 QETH_DBF_TEXT(trace,3,"setrtg4");
7582
7583 qeth_correct_routing_type(card, &card->options.route4.type,
7584 QETH_PROT_IPV4);
7585
7586 rc = qeth_send_setrouting(card, card->options.route4.type,
7587 QETH_PROT_IPV4);
7588 if (rc) {
7589 card->options.route4.type = NO_ROUTER;
7590 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7591 "Type set to 'no router'.\n",
7592 rc, QETH_CARD_IFNAME(card));
7593 }
7594 return rc;
7595 }
7596
7597 int
7598 qeth_setrouting_v6(struct qeth_card *card)
7599 {
7600 int rc = 0;
7601
7602 QETH_DBF_TEXT(trace,3,"setrtg6");
7603 #ifdef CONFIG_QETH_IPV6
7604
7605 if (!qeth_is_supported(card, IPA_IPV6))
7606 return 0;
7607 qeth_correct_routing_type(card, &card->options.route6.type,
7608 QETH_PROT_IPV6);
7609
7610 rc = qeth_send_setrouting(card, card->options.route6.type,
7611 QETH_PROT_IPV6);
7612 if (rc) {
7613 card->options.route6.type = NO_ROUTER;
7614 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7615 "Type set to 'no router'.\n",
7616 rc, QETH_CARD_IFNAME(card));
7617 }
7618 #endif
7619 return rc;
7620 }
7621
7622 int
7623 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7624 {
7625 int rc = 0;
7626
7627 if (card->dev == NULL) {
7628 card->options.large_send = type;
7629 return 0;
7630 }
7631 if (card->state == CARD_STATE_UP)
7632 netif_tx_disable(card->dev);
7633 card->options.large_send = type;
7634 switch (card->options.large_send) {
7635 case QETH_LARGE_SEND_EDDP:
7636 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
7637 NETIF_F_HW_CSUM;
7638 break;
7639 case QETH_LARGE_SEND_TSO:
7640 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7641 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
7642 NETIF_F_HW_CSUM;
7643 } else {
7644 PRINT_WARN("TSO not supported on %s. "
7645 "large_send set to 'no'.\n",
7646 card->dev->name);
7647 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7648 NETIF_F_HW_CSUM);
7649 card->options.large_send = QETH_LARGE_SEND_NO;
7650 rc = -EOPNOTSUPP;
7651 }
7652 break;
7653 default: /* includes QETH_LARGE_SEND_NO */
7654 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7655 NETIF_F_HW_CSUM);
7656 break;
7657 }
7658 if (card->state == CARD_STATE_UP)
7659 netif_wake_queue(card->dev);
7660 return rc;
7661 }
7662
7663 /*
7664 * softsetup card: init IPA stuff
7665 */
7666 static int
7667 qeth_softsetup_card(struct qeth_card *card)
7668 {
7669 int rc;
7670
7671 QETH_DBF_TEXT(setup, 2, "softsetp");
7672
7673 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7674 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7675 if (rc == 0xe080){
7676 PRINT_WARN("LAN on card %s if offline! "
7677 "Waiting for STARTLAN from card.\n",
7678 CARD_BUS_ID(card));
7679 card->lan_online = 0;
7680 }
7681 return rc;
7682 } else
7683 card->lan_online = 1;
7684 if (card->info.type==QETH_CARD_TYPE_OSN)
7685 goto out;
7686 qeth_set_large_send(card, card->options.large_send);
7687 if (card->options.layer2) {
7688 card->dev->features |=
7689 NETIF_F_HW_VLAN_FILTER |
7690 NETIF_F_HW_VLAN_TX |
7691 NETIF_F_HW_VLAN_RX;
7692 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7693 card->info.broadcast_capable=1;
7694 if ((rc = qeth_layer2_initialize(card))) {
7695 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7696 return rc;
7697 }
7698 #ifdef CONFIG_QETH_VLAN
7699 qeth_layer2_process_vlans(card, 0);
7700 #endif
7701 goto out;
7702 }
7703 if ((rc = qeth_setadapter_parms(card)))
7704 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7705 if ((rc = qeth_start_ipassists(card)))
7706 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7707 if ((rc = qeth_setrouting_v4(card)))
7708 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7709 if ((rc = qeth_setrouting_v6(card)))
7710 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7711 out:
7712 netif_tx_disable(card->dev);
7713 return 0;
7714 }
7715
7716 #ifdef CONFIG_QETH_IPV6
7717 static int
7718 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7719 unsigned long data)
7720 {
7721 struct qeth_ipa_cmd *cmd;
7722
7723 cmd = (struct qeth_ipa_cmd *) data;
7724 if (cmd->hdr.return_code == 0)
7725 card->info.unique_id = *((__u16 *)
7726 &cmd->data.create_destroy_addr.unique_id[6]);
7727 else {
7728 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7729 UNIQUE_ID_NOT_BY_CARD;
7730 PRINT_WARN("couldn't get a unique id from the card on device "
7731 "%s (result=x%x), using default id. ipv6 "
7732 "autoconfig on other lpars may lead to duplicate "
7733 "ip addresses. please use manually "
7734 "configured ones.\n",
7735 CARD_BUS_ID(card), cmd->hdr.return_code);
7736 }
7737 return 0;
7738 }
7739 #endif
7740
7741 static int
7742 qeth_put_unique_id(struct qeth_card *card)
7743 {
7744
7745 int rc = 0;
7746 #ifdef CONFIG_QETH_IPV6
7747 struct qeth_cmd_buffer *iob;
7748 struct qeth_ipa_cmd *cmd;
7749
7750 QETH_DBF_TEXT(trace,2,"puniqeid");
7751
7752 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7753 UNIQUE_ID_NOT_BY_CARD)
7754 return -1;
7755 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7756 QETH_PROT_IPV6);
7757 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7758 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7759 card->info.unique_id;
7760 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7761 card->dev->dev_addr, OSA_ADDR_LEN);
7762 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7763 #else
7764 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7765 UNIQUE_ID_NOT_BY_CARD;
7766 #endif
7767 return rc;
7768 }
7769
7770 /**
7771 * Clear IP List
7772 */
7773 static void
7774 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7775 {
7776 struct qeth_ipaddr *addr, *tmp;
7777 unsigned long flags;
7778
7779 QETH_DBF_TEXT(trace,4,"clearip");
7780 spin_lock_irqsave(&card->ip_lock, flags);
7781 /* clear todo list */
7782 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7783 list_del(&addr->entry);
7784 kfree(addr);
7785 }
7786
7787 while (!list_empty(&card->ip_list)) {
7788 addr = list_entry(card->ip_list.next,
7789 struct qeth_ipaddr, entry);
7790 list_del_init(&addr->entry);
7791 if (clean) {
7792 spin_unlock_irqrestore(&card->ip_lock, flags);
7793 qeth_deregister_addr_entry(card, addr);
7794 spin_lock_irqsave(&card->ip_lock, flags);
7795 }
7796 if (!recover || addr->is_multicast) {
7797 kfree(addr);
7798 continue;
7799 }
7800 list_add_tail(&addr->entry, card->ip_tbd_list);
7801 }
7802 spin_unlock_irqrestore(&card->ip_lock, flags);
7803 }
7804
7805 static void
7806 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7807 int clear_start_mask)
7808 {
7809 unsigned long flags;
7810
7811 spin_lock_irqsave(&card->thread_mask_lock, flags);
7812 card->thread_allowed_mask = threads;
7813 if (clear_start_mask)
7814 card->thread_start_mask &= threads;
7815 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7816 wake_up(&card->wait_q);
7817 }
7818
7819 static int
7820 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7821 {
7822 unsigned long flags;
7823 int rc = 0;
7824
7825 spin_lock_irqsave(&card->thread_mask_lock, flags);
7826 rc = (card->thread_running_mask & threads);
7827 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7828 return rc;
7829 }
7830
7831 static int
7832 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7833 {
7834 return wait_event_interruptible(card->wait_q,
7835 qeth_threads_running(card, threads) == 0);
7836 }
7837
7838 static int
7839 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7840 {
7841 int rc = 0;
7842
7843 QETH_DBF_TEXT(setup ,2,"stopcard");
7844 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7845
7846 qeth_set_allowed_threads(card, 0, 1);
7847 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7848 return -ERESTARTSYS;
7849 if (card->read.state == CH_STATE_UP &&
7850 card->write.state == CH_STATE_UP &&
7851 (card->state == CARD_STATE_UP)) {
7852 if (recovery_mode &&
7853 card->info.type != QETH_CARD_TYPE_OSN) {
7854 qeth_stop(card->dev);
7855 } else {
7856 rtnl_lock();
7857 dev_close(card->dev);
7858 rtnl_unlock();
7859 }
7860 if (!card->use_hard_stop) {
7861 __u8 *mac = &card->dev->dev_addr[0];
7862 rc = qeth_layer2_send_delmac(card, mac);
7863 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7864 if ((rc = qeth_send_stoplan(card)))
7865 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7866 }
7867 card->state = CARD_STATE_SOFTSETUP;
7868 }
7869 if (card->state == CARD_STATE_SOFTSETUP) {
7870 #ifdef CONFIG_QETH_VLAN
7871 if (card->options.layer2)
7872 qeth_layer2_process_vlans(card, 1);
7873 #endif
7874 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7875 qeth_clear_ipacmd_list(card);
7876 card->state = CARD_STATE_HARDSETUP;
7877 }
7878 if (card->state == CARD_STATE_HARDSETUP) {
7879 if ((!card->use_hard_stop) &&
7880 (!card->options.layer2))
7881 if ((rc = qeth_put_unique_id(card)))
7882 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7883 qeth_qdio_clear_card(card, 0);
7884 qeth_clear_qdio_buffers(card);
7885 qeth_clear_working_pool_list(card);
7886 card->state = CARD_STATE_DOWN;
7887 }
7888 if (card->state == CARD_STATE_DOWN) {
7889 qeth_clear_cmd_buffers(&card->read);
7890 qeth_clear_cmd_buffers(&card->write);
7891 }
7892 card->use_hard_stop = 0;
7893 return rc;
7894 }
7895
7896
7897 static int
7898 qeth_get_unique_id(struct qeth_card *card)
7899 {
7900 int rc = 0;
7901 #ifdef CONFIG_QETH_IPV6
7902 struct qeth_cmd_buffer *iob;
7903 struct qeth_ipa_cmd *cmd;
7904
7905 QETH_DBF_TEXT(setup, 2, "guniqeid");
7906
7907 if (!qeth_is_supported(card,IPA_IPV6)) {
7908 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7909 UNIQUE_ID_NOT_BY_CARD;
7910 return 0;
7911 }
7912
7913 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7914 QETH_PROT_IPV6);
7915 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7916 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7917 card->info.unique_id;
7918
7919 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7920 #else
7921 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7922 UNIQUE_ID_NOT_BY_CARD;
7923 #endif
7924 return rc;
7925 }
7926 static void
7927 qeth_print_status_with_portname(struct qeth_card *card)
7928 {
7929 char dbf_text[15];
7930 int i;
7931
7932 sprintf(dbf_text, "%s", card->info.portname + 1);
7933 for (i = 0; i < 8; i++)
7934 dbf_text[i] =
7935 (char) _ebcasc[(__u8) dbf_text[i]];
7936 dbf_text[8] = 0;
7937 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7938 "with link type %s (portname: %s)\n",
7939 CARD_RDEV_ID(card),
7940 CARD_WDEV_ID(card),
7941 CARD_DDEV_ID(card),
7942 qeth_get_cardname(card),
7943 (card->info.mcl_level[0]) ? " (level: " : "",
7944 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7945 (card->info.mcl_level[0]) ? ")" : "",
7946 qeth_get_cardname_short(card),
7947 dbf_text);
7948
7949 }
7950
7951 static void
7952 qeth_print_status_no_portname(struct qeth_card *card)
7953 {
7954 if (card->info.portname[0])
7955 printk("qeth: Device %s/%s/%s is a%s "
7956 "card%s%s%s\nwith link type %s "
7957 "(no portname needed by interface).\n",
7958 CARD_RDEV_ID(card),
7959 CARD_WDEV_ID(card),
7960 CARD_DDEV_ID(card),
7961 qeth_get_cardname(card),
7962 (card->info.mcl_level[0]) ? " (level: " : "",
7963 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7964 (card->info.mcl_level[0]) ? ")" : "",
7965 qeth_get_cardname_short(card));
7966 else
7967 printk("qeth: Device %s/%s/%s is a%s "
7968 "card%s%s%s\nwith link type %s.\n",
7969 CARD_RDEV_ID(card),
7970 CARD_WDEV_ID(card),
7971 CARD_DDEV_ID(card),
7972 qeth_get_cardname(card),
7973 (card->info.mcl_level[0]) ? " (level: " : "",
7974 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7975 (card->info.mcl_level[0]) ? ")" : "",
7976 qeth_get_cardname_short(card));
7977 }
7978
7979 static void
7980 qeth_print_status_message(struct qeth_card *card)
7981 {
7982 switch (card->info.type) {
7983 case QETH_CARD_TYPE_OSAE:
7984 /* VM will use a non-zero first character
7985 * to indicate a HiperSockets like reporting
7986 * of the level OSA sets the first character to zero
7987 * */
7988 if (!card->info.mcl_level[0]) {
7989 sprintf(card->info.mcl_level,"%02x%02x",
7990 card->info.mcl_level[2],
7991 card->info.mcl_level[3]);
7992
7993 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7994 break;
7995 }
7996 /* fallthrough */
7997 case QETH_CARD_TYPE_IQD:
7998 if (card->info.guestlan) {
7999 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
8000 card->info.mcl_level[0]];
8001 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
8002 card->info.mcl_level[1]];
8003 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
8004 card->info.mcl_level[2]];
8005 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
8006 card->info.mcl_level[3]];
8007 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
8008 }
8009 break;
8010 default:
8011 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
8012 }
8013 if (card->info.portname_required)
8014 qeth_print_status_with_portname(card);
8015 else
8016 qeth_print_status_no_portname(card);
8017 }
8018
8019 static int
8020 qeth_register_netdev(struct qeth_card *card)
8021 {
8022 QETH_DBF_TEXT(setup, 3, "regnetd");
8023 if (card->dev->reg_state != NETREG_UNINITIALIZED)
8024 return 0;
8025 /* sysfs magic */
8026 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
8027 return register_netdev(card->dev);
8028 }
8029
8030 static void
8031 qeth_start_again(struct qeth_card *card, int recovery_mode)
8032 {
8033 QETH_DBF_TEXT(setup ,2, "startag");
8034
8035 if (recovery_mode &&
8036 card->info.type != QETH_CARD_TYPE_OSN) {
8037 qeth_open(card->dev);
8038 } else {
8039 rtnl_lock();
8040 dev_open(card->dev);
8041 rtnl_unlock();
8042 }
8043 /* this also sets saved unicast addresses */
8044 qeth_set_multicast_list(card->dev);
8045 }
8046
8047
8048 /* Layer 2 specific stuff */
8049 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
8050 if (card->options.option == value) { \
8051 PRINT_ERR("%s not supported with layer 2 " \
8052 "functionality, ignoring option on read" \
8053 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
8054 card->options.option = reset_value; \
8055 }
8056 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
8057 if (card->options.option != value) { \
8058 PRINT_ERR("%s not supported with layer 2 " \
8059 "functionality, ignoring option on read" \
8060 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
8061 card->options.option = reset_value; \
8062 }
8063
8064
8065 static void qeth_make_parameters_consistent(struct qeth_card *card)
8066 {
8067
8068 if (card->options.layer2 == 0)
8069 return;
8070 if (card->info.type == QETH_CARD_TYPE_OSN)
8071 return;
8072 if (card->info.type == QETH_CARD_TYPE_IQD) {
8073 PRINT_ERR("Device %s does not support layer 2 functionality." \
8074 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
8075 card->options.layer2 = 0;
8076 return;
8077 }
8078 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
8079 "Routing options are");
8080 #ifdef CONFIG_QETH_IPV6
8081 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
8082 "Routing options are");
8083 #endif
8084 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
8085 QETH_CHECKSUM_DEFAULT,
8086 "Checksumming options are");
8087 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
8088 QETH_TR_BROADCAST_ALLRINGS,
8089 "Broadcast mode options are");
8090 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
8091 QETH_TR_MACADDR_NONCANONICAL,
8092 "Canonical MAC addr options are");
8093 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
8094 "Broadcast faking options are");
8095 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
8096 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
8097 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
8098 }
8099
8100
8101 static int
8102 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
8103 {
8104 struct qeth_card *card = gdev->dev.driver_data;
8105 int rc = 0;
8106 enum qeth_card_states recover_flag;
8107
8108 BUG_ON(!card);
8109 QETH_DBF_TEXT(setup ,2, "setonlin");
8110 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
8111
8112 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
8113 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
8114 PRINT_WARN("set_online of card %s interrupted by user!\n",
8115 CARD_BUS_ID(card));
8116 return -ERESTARTSYS;
8117 }
8118
8119 recover_flag = card->state;
8120 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
8121 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
8122 (rc = ccw_device_set_online(CARD_DDEV(card)))){
8123 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
8124 return -EIO;
8125 }
8126
8127 qeth_make_parameters_consistent(card);
8128
8129 if ((rc = qeth_hardsetup_card(card))){
8130 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
8131 goto out_remove;
8132 }
8133 card->state = CARD_STATE_HARDSETUP;
8134
8135 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
8136 rc = qeth_get_unique_id(card);
8137
8138 if (rc && card->options.layer2 == 0) {
8139 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
8140 goto out_remove;
8141 }
8142 qeth_print_status_message(card);
8143 if ((rc = qeth_register_netdev(card))){
8144 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
8145 goto out_remove;
8146 }
8147 if ((rc = qeth_softsetup_card(card))){
8148 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
8149 goto out_remove;
8150 }
8151
8152 if ((rc = qeth_init_qdio_queues(card))){
8153 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
8154 goto out_remove;
8155 }
8156 card->state = CARD_STATE_SOFTSETUP;
8157 netif_carrier_on(card->dev);
8158
8159 qeth_set_allowed_threads(card, 0xffffffff, 0);
8160 if (recover_flag == CARD_STATE_RECOVER)
8161 qeth_start_again(card, recovery_mode);
8162 qeth_notify_processes();
8163 return 0;
8164 out_remove:
8165 card->use_hard_stop = 1;
8166 qeth_stop_card(card, 0);
8167 ccw_device_set_offline(CARD_DDEV(card));
8168 ccw_device_set_offline(CARD_WDEV(card));
8169 ccw_device_set_offline(CARD_RDEV(card));
8170 if (recover_flag == CARD_STATE_RECOVER)
8171 card->state = CARD_STATE_RECOVER;
8172 else
8173 card->state = CARD_STATE_DOWN;
8174 return -ENODEV;
8175 }
8176
8177 static int
8178 qeth_set_online(struct ccwgroup_device *gdev)
8179 {
8180 return __qeth_set_online(gdev, 0);
8181 }
8182
8183 static struct ccw_device_id qeth_ids[] = {
8184 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
8185 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
8186 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
8187 {},
8188 };
8189 MODULE_DEVICE_TABLE(ccw, qeth_ids);
8190
8191 struct device *qeth_root_dev = NULL;
8192
8193 struct ccwgroup_driver qeth_ccwgroup_driver = {
8194 .owner = THIS_MODULE,
8195 .name = "qeth",
8196 .driver_id = 0xD8C5E3C8,
8197 .probe = qeth_probe_device,
8198 .remove = qeth_remove_device,
8199 .set_online = qeth_set_online,
8200 .set_offline = qeth_set_offline,
8201 };
8202
8203 struct ccw_driver qeth_ccw_driver = {
8204 .name = "qeth",
8205 .ids = qeth_ids,
8206 .probe = ccwgroup_probe_ccwdev,
8207 .remove = ccwgroup_remove_ccwdev,
8208 };
8209
8210
8211 static void
8212 qeth_unregister_dbf_views(void)
8213 {
8214 if (qeth_dbf_setup)
8215 debug_unregister(qeth_dbf_setup);
8216 if (qeth_dbf_qerr)
8217 debug_unregister(qeth_dbf_qerr);
8218 if (qeth_dbf_sense)
8219 debug_unregister(qeth_dbf_sense);
8220 if (qeth_dbf_misc)
8221 debug_unregister(qeth_dbf_misc);
8222 if (qeth_dbf_data)
8223 debug_unregister(qeth_dbf_data);
8224 if (qeth_dbf_control)
8225 debug_unregister(qeth_dbf_control);
8226 if (qeth_dbf_trace)
8227 debug_unregister(qeth_dbf_trace);
8228 }
8229 static int
8230 qeth_register_dbf_views(void)
8231 {
8232 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8233 QETH_DBF_SETUP_PAGES,
8234 QETH_DBF_SETUP_NR_AREAS,
8235 QETH_DBF_SETUP_LEN);
8236 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8237 QETH_DBF_MISC_PAGES,
8238 QETH_DBF_MISC_NR_AREAS,
8239 QETH_DBF_MISC_LEN);
8240 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8241 QETH_DBF_DATA_PAGES,
8242 QETH_DBF_DATA_NR_AREAS,
8243 QETH_DBF_DATA_LEN);
8244 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8245 QETH_DBF_CONTROL_PAGES,
8246 QETH_DBF_CONTROL_NR_AREAS,
8247 QETH_DBF_CONTROL_LEN);
8248 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8249 QETH_DBF_SENSE_PAGES,
8250 QETH_DBF_SENSE_NR_AREAS,
8251 QETH_DBF_SENSE_LEN);
8252 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8253 QETH_DBF_QERR_PAGES,
8254 QETH_DBF_QERR_NR_AREAS,
8255 QETH_DBF_QERR_LEN);
8256 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8257 QETH_DBF_TRACE_PAGES,
8258 QETH_DBF_TRACE_NR_AREAS,
8259 QETH_DBF_TRACE_LEN);
8260
8261 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
8262 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
8263 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
8264 (qeth_dbf_trace == NULL)) {
8265 qeth_unregister_dbf_views();
8266 return -ENOMEM;
8267 }
8268 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8269 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8270
8271 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8272 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8273
8274 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8275 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8276
8277 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8278 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8279
8280 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8281 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8282
8283 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8284 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8285
8286 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8287 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8288
8289 return 0;
8290 }
8291
8292 #ifdef CONFIG_QETH_IPV6
8293 extern struct neigh_table arp_tbl;
8294 static struct neigh_ops *arp_direct_ops;
8295 static int (*qeth_old_arp_constructor) (struct neighbour *);
8296
8297 static struct neigh_ops arp_direct_ops_template = {
8298 .family = AF_INET,
8299 .solicit = NULL,
8300 .error_report = NULL,
8301 .output = dev_queue_xmit,
8302 .connected_output = dev_queue_xmit,
8303 .hh_output = dev_queue_xmit,
8304 .queue_xmit = dev_queue_xmit
8305 };
8306
8307 static int
8308 qeth_arp_constructor(struct neighbour *neigh)
8309 {
8310 struct net_device *dev = neigh->dev;
8311 struct in_device *in_dev;
8312 struct neigh_parms *parms;
8313 struct qeth_card *card;
8314
8315 card = qeth_get_card_from_dev(dev);
8316 if (card == NULL)
8317 goto out;
8318 if((card->options.layer2) ||
8319 (card->dev->header_ops == &qeth_fake_ops))
8320 goto out;
8321
8322 rcu_read_lock();
8323 in_dev = __in_dev_get_rcu(dev);
8324 if (in_dev == NULL) {
8325 rcu_read_unlock();
8326 return -EINVAL;
8327 }
8328
8329 parms = in_dev->arp_parms;
8330 __neigh_parms_put(neigh->parms);
8331 neigh->parms = neigh_parms_clone(parms);
8332 rcu_read_unlock();
8333
8334 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8335 neigh->nud_state = NUD_NOARP;
8336 neigh->ops = arp_direct_ops;
8337 neigh->output = neigh->ops->queue_xmit;
8338 return 0;
8339 out:
8340 return qeth_old_arp_constructor(neigh);
8341 }
8342 #endif /*CONFIG_QETH_IPV6*/
8343
8344 /*
8345 * IP address takeover related functions
8346 */
8347 static void
8348 qeth_clear_ipato_list(struct qeth_card *card)
8349 {
8350 struct qeth_ipato_entry *ipatoe, *tmp;
8351 unsigned long flags;
8352
8353 spin_lock_irqsave(&card->ip_lock, flags);
8354 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8355 list_del(&ipatoe->entry);
8356 kfree(ipatoe);
8357 }
8358 spin_unlock_irqrestore(&card->ip_lock, flags);
8359 }
8360
8361 int
8362 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8363 {
8364 struct qeth_ipato_entry *ipatoe;
8365 unsigned long flags;
8366 int rc = 0;
8367
8368 QETH_DBF_TEXT(trace, 2, "addipato");
8369 spin_lock_irqsave(&card->ip_lock, flags);
8370 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8371 if (ipatoe->proto != new->proto)
8372 continue;
8373 if (!memcmp(ipatoe->addr, new->addr,
8374 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8375 (ipatoe->mask_bits == new->mask_bits)){
8376 PRINT_WARN("ipato entry already exists!\n");
8377 rc = -EEXIST;
8378 break;
8379 }
8380 }
8381 if (!rc) {
8382 list_add_tail(&new->entry, &card->ipato.entries);
8383 }
8384 spin_unlock_irqrestore(&card->ip_lock, flags);
8385 return rc;
8386 }
8387
8388 void
8389 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8390 u8 *addr, int mask_bits)
8391 {
8392 struct qeth_ipato_entry *ipatoe, *tmp;
8393 unsigned long flags;
8394
8395 QETH_DBF_TEXT(trace, 2, "delipato");
8396 spin_lock_irqsave(&card->ip_lock, flags);
8397 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8398 if (ipatoe->proto != proto)
8399 continue;
8400 if (!memcmp(ipatoe->addr, addr,
8401 (proto == QETH_PROT_IPV4)? 4:16) &&
8402 (ipatoe->mask_bits == mask_bits)){
8403 list_del(&ipatoe->entry);
8404 kfree(ipatoe);
8405 }
8406 }
8407 spin_unlock_irqrestore(&card->ip_lock, flags);
8408 }
8409
8410 static void
8411 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8412 {
8413 int i, j;
8414 u8 octet;
8415
8416 for (i = 0; i < len; ++i){
8417 octet = addr[i];
8418 for (j = 7; j >= 0; --j){
8419 bits[i*8 + j] = octet & 1;
8420 octet >>= 1;
8421 }
8422 }
8423 }
8424
8425 static int
8426 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8427 {
8428 struct qeth_ipato_entry *ipatoe;
8429 u8 addr_bits[128] = {0, };
8430 u8 ipatoe_bits[128] = {0, };
8431 int rc = 0;
8432
8433 if (!card->ipato.enabled)
8434 return 0;
8435
8436 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8437 (addr->proto == QETH_PROT_IPV4)? 4:16);
8438 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8439 if (addr->proto != ipatoe->proto)
8440 continue;
8441 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8442 (ipatoe->proto==QETH_PROT_IPV4) ?
8443 4:16);
8444 if (addr->proto == QETH_PROT_IPV4)
8445 rc = !memcmp(addr_bits, ipatoe_bits,
8446 min(32, ipatoe->mask_bits));
8447 else
8448 rc = !memcmp(addr_bits, ipatoe_bits,
8449 min(128, ipatoe->mask_bits));
8450 if (rc)
8451 break;
8452 }
8453 /* invert? */
8454 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8455 rc = !rc;
8456 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8457 rc = !rc;
8458
8459 return rc;
8460 }
8461
8462 /*
8463 * VIPA related functions
8464 */
8465 int
8466 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8467 const u8 *addr)
8468 {
8469 struct qeth_ipaddr *ipaddr;
8470 unsigned long flags;
8471 int rc = 0;
8472
8473 ipaddr = qeth_get_addr_buffer(proto);
8474 if (ipaddr){
8475 if (proto == QETH_PROT_IPV4){
8476 QETH_DBF_TEXT(trace, 2, "addvipa4");
8477 memcpy(&ipaddr->u.a4.addr, addr, 4);
8478 ipaddr->u.a4.mask = 0;
8479 #ifdef CONFIG_QETH_IPV6
8480 } else if (proto == QETH_PROT_IPV6){
8481 QETH_DBF_TEXT(trace, 2, "addvipa6");
8482 memcpy(&ipaddr->u.a6.addr, addr, 16);
8483 ipaddr->u.a6.pfxlen = 0;
8484 #endif
8485 }
8486 ipaddr->type = QETH_IP_TYPE_VIPA;
8487 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8488 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8489 } else
8490 return -ENOMEM;
8491 spin_lock_irqsave(&card->ip_lock, flags);
8492 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8493 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8494 rc = -EEXIST;
8495 spin_unlock_irqrestore(&card->ip_lock, flags);
8496 if (rc){
8497 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8498 return rc;
8499 }
8500 if (!qeth_add_ip(card, ipaddr))
8501 kfree(ipaddr);
8502 qeth_set_ip_addr_list(card);
8503 return rc;
8504 }
8505
8506 void
8507 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8508 const u8 *addr)
8509 {
8510 struct qeth_ipaddr *ipaddr;
8511
8512 ipaddr = qeth_get_addr_buffer(proto);
8513 if (ipaddr){
8514 if (proto == QETH_PROT_IPV4){
8515 QETH_DBF_TEXT(trace, 2, "delvipa4");
8516 memcpy(&ipaddr->u.a4.addr, addr, 4);
8517 ipaddr->u.a4.mask = 0;
8518 #ifdef CONFIG_QETH_IPV6
8519 } else if (proto == QETH_PROT_IPV6){
8520 QETH_DBF_TEXT(trace, 2, "delvipa6");
8521 memcpy(&ipaddr->u.a6.addr, addr, 16);
8522 ipaddr->u.a6.pfxlen = 0;
8523 #endif
8524 }
8525 ipaddr->type = QETH_IP_TYPE_VIPA;
8526 } else
8527 return;
8528 if (!qeth_delete_ip(card, ipaddr))
8529 kfree(ipaddr);
8530 qeth_set_ip_addr_list(card);
8531 }
8532
8533 /*
8534 * proxy ARP related functions
8535 */
8536 int
8537 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8538 const u8 *addr)
8539 {
8540 struct qeth_ipaddr *ipaddr;
8541 unsigned long flags;
8542 int rc = 0;
8543
8544 ipaddr = qeth_get_addr_buffer(proto);
8545 if (ipaddr){
8546 if (proto == QETH_PROT_IPV4){
8547 QETH_DBF_TEXT(trace, 2, "addrxip4");
8548 memcpy(&ipaddr->u.a4.addr, addr, 4);
8549 ipaddr->u.a4.mask = 0;
8550 #ifdef CONFIG_QETH_IPV6
8551 } else if (proto == QETH_PROT_IPV6){
8552 QETH_DBF_TEXT(trace, 2, "addrxip6");
8553 memcpy(&ipaddr->u.a6.addr, addr, 16);
8554 ipaddr->u.a6.pfxlen = 0;
8555 #endif
8556 }
8557 ipaddr->type = QETH_IP_TYPE_RXIP;
8558 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8559 ipaddr->del_flags = 0;
8560 } else
8561 return -ENOMEM;
8562 spin_lock_irqsave(&card->ip_lock, flags);
8563 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8564 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8565 rc = -EEXIST;
8566 spin_unlock_irqrestore(&card->ip_lock, flags);
8567 if (rc){
8568 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8569 return rc;
8570 }
8571 if (!qeth_add_ip(card, ipaddr))
8572 kfree(ipaddr);
8573 qeth_set_ip_addr_list(card);
8574 return 0;
8575 }
8576
8577 void
8578 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8579 const u8 *addr)
8580 {
8581 struct qeth_ipaddr *ipaddr;
8582
8583 ipaddr = qeth_get_addr_buffer(proto);
8584 if (ipaddr){
8585 if (proto == QETH_PROT_IPV4){
8586 QETH_DBF_TEXT(trace, 2, "addrxip4");
8587 memcpy(&ipaddr->u.a4.addr, addr, 4);
8588 ipaddr->u.a4.mask = 0;
8589 #ifdef CONFIG_QETH_IPV6
8590 } else if (proto == QETH_PROT_IPV6){
8591 QETH_DBF_TEXT(trace, 2, "addrxip6");
8592 memcpy(&ipaddr->u.a6.addr, addr, 16);
8593 ipaddr->u.a6.pfxlen = 0;
8594 #endif
8595 }
8596 ipaddr->type = QETH_IP_TYPE_RXIP;
8597 } else
8598 return;
8599 if (!qeth_delete_ip(card, ipaddr))
8600 kfree(ipaddr);
8601 qeth_set_ip_addr_list(card);
8602 }
8603
8604 /**
8605 * IP event handler
8606 */
8607 static int
8608 qeth_ip_event(struct notifier_block *this,
8609 unsigned long event,void *ptr)
8610 {
8611 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8612 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8613 struct qeth_ipaddr *addr;
8614 struct qeth_card *card;
8615
8616 QETH_DBF_TEXT(trace,3,"ipevent");
8617 card = qeth_get_card_from_dev(dev);
8618 if (!card)
8619 return NOTIFY_DONE;
8620 if (card->options.layer2)
8621 return NOTIFY_DONE;
8622
8623 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8624 if (addr != NULL) {
8625 addr->u.a4.addr = ifa->ifa_address;
8626 addr->u.a4.mask = ifa->ifa_mask;
8627 addr->type = QETH_IP_TYPE_NORMAL;
8628 } else
8629 goto out;
8630
8631 switch(event) {
8632 case NETDEV_UP:
8633 if (!qeth_add_ip(card, addr))
8634 kfree(addr);
8635 break;
8636 case NETDEV_DOWN:
8637 if (!qeth_delete_ip(card, addr))
8638 kfree(addr);
8639 break;
8640 default:
8641 break;
8642 }
8643 qeth_set_ip_addr_list(card);
8644 out:
8645 return NOTIFY_DONE;
8646 }
8647
8648 static struct notifier_block qeth_ip_notifier = {
8649 qeth_ip_event,
8650 NULL,
8651 };
8652
8653 #ifdef CONFIG_QETH_IPV6
8654 /**
8655 * IPv6 event handler
8656 */
8657 static int
8658 qeth_ip6_event(struct notifier_block *this,
8659 unsigned long event,void *ptr)
8660 {
8661
8662 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8663 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8664 struct qeth_ipaddr *addr;
8665 struct qeth_card *card;
8666
8667 QETH_DBF_TEXT(trace,3,"ip6event");
8668
8669 card = qeth_get_card_from_dev(dev);
8670 if (!card)
8671 return NOTIFY_DONE;
8672 if (!qeth_is_supported(card, IPA_IPV6))
8673 return NOTIFY_DONE;
8674
8675 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8676 if (addr != NULL) {
8677 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8678 addr->u.a6.pfxlen = ifa->prefix_len;
8679 addr->type = QETH_IP_TYPE_NORMAL;
8680 } else
8681 goto out;
8682
8683 switch(event) {
8684 case NETDEV_UP:
8685 if (!qeth_add_ip(card, addr))
8686 kfree(addr);
8687 break;
8688 case NETDEV_DOWN:
8689 if (!qeth_delete_ip(card, addr))
8690 kfree(addr);
8691 break;
8692 default:
8693 break;
8694 }
8695 qeth_set_ip_addr_list(card);
8696 out:
8697 return NOTIFY_DONE;
8698 }
8699
8700 static struct notifier_block qeth_ip6_notifier = {
8701 qeth_ip6_event,
8702 NULL,
8703 };
8704 #endif
8705
8706 static int
8707 __qeth_reboot_event_card(struct device *dev, void *data)
8708 {
8709 struct qeth_card *card;
8710
8711 card = (struct qeth_card *) dev->driver_data;
8712 qeth_clear_ip_list(card, 0, 0);
8713 qeth_qdio_clear_card(card, 0);
8714 qeth_clear_qdio_buffers(card);
8715 return 0;
8716 }
8717
8718 static int
8719 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8720 {
8721 int ret;
8722
8723 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8724 __qeth_reboot_event_card);
8725 return ret ? NOTIFY_BAD : NOTIFY_DONE;
8726 }
8727
8728
8729 static struct notifier_block qeth_reboot_notifier = {
8730 qeth_reboot_event,
8731 NULL,
8732 };
8733
8734 static int
8735 qeth_register_notifiers(void)
8736 {
8737 int r;
8738
8739 QETH_DBF_TEXT(trace,5,"regnotif");
8740 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8741 return r;
8742 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8743 goto out_reboot;
8744 #ifdef CONFIG_QETH_IPV6
8745 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8746 goto out_ipv4;
8747 #endif
8748 return 0;
8749
8750 #ifdef CONFIG_QETH_IPV6
8751 out_ipv4:
8752 unregister_inetaddr_notifier(&qeth_ip_notifier);
8753 #endif
8754 out_reboot:
8755 unregister_reboot_notifier(&qeth_reboot_notifier);
8756 return r;
8757 }
8758
8759 /**
8760 * unregister all event notifiers
8761 */
8762 static void
8763 qeth_unregister_notifiers(void)
8764 {
8765
8766 QETH_DBF_TEXT(trace,5,"unregnot");
8767 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8768 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8769 #ifdef CONFIG_QETH_IPV6
8770 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8771 #endif /* QETH_IPV6 */
8772
8773 }
8774
8775 #ifdef CONFIG_QETH_IPV6
8776 static int
8777 qeth_ipv6_init(void)
8778 {
8779 qeth_old_arp_constructor = arp_tbl.constructor;
8780 write_lock_bh(&arp_tbl.lock);
8781 arp_tbl.constructor = qeth_arp_constructor;
8782 write_unlock_bh(&arp_tbl.lock);
8783
8784 arp_direct_ops = (struct neigh_ops*)
8785 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8786 if (!arp_direct_ops)
8787 return -ENOMEM;
8788
8789 memcpy(arp_direct_ops, &arp_direct_ops_template,
8790 sizeof(struct neigh_ops));
8791
8792 return 0;
8793 }
8794
8795 static void
8796 qeth_ipv6_uninit(void)
8797 {
8798 write_lock_bh(&arp_tbl.lock);
8799 arp_tbl.constructor = qeth_old_arp_constructor;
8800 write_unlock_bh(&arp_tbl.lock);
8801 kfree(arp_direct_ops);
8802 }
8803 #endif /* CONFIG_QETH_IPV6 */
8804
8805 static void
8806 qeth_sysfs_unregister(void)
8807 {
8808 s390_root_dev_unregister(qeth_root_dev);
8809 qeth_remove_driver_attributes();
8810 ccw_driver_unregister(&qeth_ccw_driver);
8811 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8812 }
8813
8814 /**
8815 * register qeth at sysfs
8816 */
8817 static int
8818 qeth_sysfs_register(void)
8819 {
8820 int rc;
8821
8822 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8823 if (rc)
8824 goto out;
8825
8826 rc = ccw_driver_register(&qeth_ccw_driver);
8827 if (rc)
8828 goto out_ccw_driver;
8829
8830 rc = qeth_create_driver_attributes();
8831 if (rc)
8832 goto out_qeth_attr;
8833
8834 qeth_root_dev = s390_root_dev_register("qeth");
8835 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8836 if (!rc)
8837 goto out;
8838
8839 qeth_remove_driver_attributes();
8840 out_qeth_attr:
8841 ccw_driver_unregister(&qeth_ccw_driver);
8842 out_ccw_driver:
8843 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8844 out:
8845 return rc;
8846 }
8847
8848 /***
8849 * init function
8850 */
8851 static int __init
8852 qeth_init(void)
8853 {
8854 int rc;
8855
8856 PRINT_INFO("loading %s\n", version);
8857
8858 INIT_LIST_HEAD(&qeth_card_list.list);
8859 INIT_LIST_HEAD(&qeth_notify_list);
8860 spin_lock_init(&qeth_notify_lock);
8861 rwlock_init(&qeth_card_list.rwlock);
8862
8863 rc = qeth_register_dbf_views();
8864 if (rc)
8865 goto out_err;
8866
8867 rc = qeth_sysfs_register();
8868 if (rc)
8869 goto out_dbf;
8870
8871 #ifdef CONFIG_QETH_IPV6
8872 rc = qeth_ipv6_init();
8873 if (rc) {
8874 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8875 goto out_sysfs;
8876 }
8877 #endif /* QETH_IPV6 */
8878 rc = qeth_register_notifiers();
8879 if (rc)
8880 goto out_ipv6;
8881 rc = qeth_create_procfs_entries();
8882 if (rc)
8883 goto out_notifiers;
8884
8885 return rc;
8886
8887 out_notifiers:
8888 qeth_unregister_notifiers();
8889 out_ipv6:
8890 #ifdef CONFIG_QETH_IPV6
8891 qeth_ipv6_uninit();
8892 out_sysfs:
8893 #endif /* QETH_IPV6 */
8894 qeth_sysfs_unregister();
8895 out_dbf:
8896 qeth_unregister_dbf_views();
8897 out_err:
8898 PRINT_ERR("Initialization failed with code %d\n", rc);
8899 return rc;
8900 }
8901
8902 static void
8903 __exit qeth_exit(void)
8904 {
8905 struct qeth_card *card, *tmp;
8906 unsigned long flags;
8907
8908 QETH_DBF_TEXT(trace,1, "cleanup.");
8909
8910 /*
8911 * Weed would not need to clean up our devices here, because the
8912 * common device layer calls qeth_remove_device for each device
8913 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8914 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8915 * qeth_remove_device called by the common device layer would otherwise
8916 * do a "hard" shutdown (card->use_hard_stop is set to one in
8917 * qeth_remove_device).
8918 */
8919 again:
8920 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8921 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8922 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8923 qeth_set_offline(card->gdev);
8924 qeth_remove_device(card->gdev);
8925 goto again;
8926 }
8927 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8928 #ifdef CONFIG_QETH_IPV6
8929 qeth_ipv6_uninit();
8930 #endif
8931 qeth_unregister_notifiers();
8932 qeth_remove_procfs_entries();
8933 qeth_sysfs_unregister();
8934 qeth_unregister_dbf_views();
8935 printk("qeth: removed\n");
8936 }
8937
8938 EXPORT_SYMBOL(qeth_osn_register);
8939 EXPORT_SYMBOL(qeth_osn_deregister);
8940 EXPORT_SYMBOL(qeth_osn_assist);
8941 module_init(qeth_init);
8942 module_exit(qeth_exit);
8943 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8944 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8945 "Copyright 2000,2003 IBM Corporation\n");
8946
8947 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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