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s390: scatter-gather for inbound traffic in qeth driver
[linux-2.6/openmoko-kernel/knife-kernel.git] / drivers / s390 / net / qeth_main.c
blob8dca93598ea3f243390ca7ddba811e29a7a17cba
1 /*
2 * linux/drivers/s390/net/qeth_main.c
3 *
4 * Linux on zSeries OSA Express and HiperSockets support
5 *
6 * Copyright 2000,2003 IBM Corporation
7 *
8 * Author(s): Original Code written by
9 * Utz Bacher (utz.bacher@de.ibm.com)
10 * Rewritten by
11 * Frank Pavlic (fpavlic@de.ibm.com) and
12 * Thomas Spatzier <tspat@de.ibm.com>
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
29
30 #include <linux/module.h>
31 #include <linux/moduleparam.h>
32 #include <linux/string.h>
33 #include <linux/errno.h>
34 #include <linux/mm.h>
35 #include <linux/ip.h>
36 #include <linux/inetdevice.h>
37 #include <linux/netdevice.h>
38 #include <linux/sched.h>
39 #include <linux/workqueue.h>
40 #include <linux/kernel.h>
41 #include <linux/slab.h>
42 #include <linux/interrupt.h>
43 #include <linux/tcp.h>
44 #include <linux/icmp.h>
45 #include <linux/skbuff.h>
46 #include <linux/in.h>
47 #include <linux/igmp.h>
48 #include <linux/init.h>
49 #include <linux/reboot.h>
50 #include <linux/mii.h>
51 #include <linux/rcupdate.h>
52 #include <linux/ethtool.h>
53
54 #include <net/arp.h>
55 #include <net/ip.h>
56 #include <net/route.h>
57
58 #include <asm/ebcdic.h>
59 #include <asm/io.h>
60 #include <asm/qeth.h>
61 #include <asm/timex.h>
62 #include <asm/semaphore.h>
63 #include <asm/uaccess.h>
64 #include <asm/s390_rdev.h>
65
66 #include "qeth.h"
67 #include "qeth_mpc.h"
68 #include "qeth_fs.h"
69 #include "qeth_eddp.h"
70 #include "qeth_tso.h"
71
72 static const char *version = "qeth S/390 OSA-Express driver";
73
74 /**
75 * Debug Facility Stuff
76 */
77 static debug_info_t *qeth_dbf_setup = NULL;
78 static debug_info_t *qeth_dbf_data = NULL;
79 static debug_info_t *qeth_dbf_misc = NULL;
80 static debug_info_t *qeth_dbf_control = NULL;
81 debug_info_t *qeth_dbf_trace = NULL;
82 static debug_info_t *qeth_dbf_sense = NULL;
83 static debug_info_t *qeth_dbf_qerr = NULL;
84
85 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
86
87 static struct lock_class_key qdio_out_skb_queue_key;
88
89 /**
90 * some more definitions and declarations
91 */
92 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
93
94 /* list of our cards */
95 struct qeth_card_list_struct qeth_card_list;
96 /*process list want to be notified*/
97 spinlock_t qeth_notify_lock;
98 struct list_head qeth_notify_list;
99
100 static void qeth_send_control_data_cb(struct qeth_channel *,
101 struct qeth_cmd_buffer *);
102
103 /**
104 * here we go with function implementation
105 */
106 static void
107 qeth_init_qdio_info(struct qeth_card *card);
108
109 static int
110 qeth_init_qdio_queues(struct qeth_card *card);
111
112 static int
113 qeth_alloc_qdio_buffers(struct qeth_card *card);
114
115 static void
116 qeth_free_qdio_buffers(struct qeth_card *);
117
118 static void
119 qeth_clear_qdio_buffers(struct qeth_card *);
120
121 static void
122 qeth_clear_ip_list(struct qeth_card *, int, int);
123
124 static void
125 qeth_clear_ipacmd_list(struct qeth_card *);
126
127 static int
128 qeth_qdio_clear_card(struct qeth_card *, int);
129
130 static void
131 qeth_clear_working_pool_list(struct qeth_card *);
132
133 static void
134 qeth_clear_cmd_buffers(struct qeth_channel *);
135
136 static int
137 qeth_stop(struct net_device *);
138
139 static void
140 qeth_clear_ipato_list(struct qeth_card *);
141
142 static int
143 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
144
145 static void
146 qeth_irq_tasklet(unsigned long);
147
148 static int
149 qeth_set_online(struct ccwgroup_device *);
150
151 static int
152 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
153
154 static struct qeth_ipaddr *
155 qeth_get_addr_buffer(enum qeth_prot_versions);
156
157 static void
158 qeth_set_multicast_list(struct net_device *);
159
160 static void
161 qeth_setadp_promisc_mode(struct qeth_card *);
162
163 static void
164 qeth_notify_processes(void)
165 {
166 /*notify all registered processes */
167 struct qeth_notify_list_struct *n_entry;
168
169 QETH_DBF_TEXT(trace,3,"procnoti");
170 spin_lock(&qeth_notify_lock);
171 list_for_each_entry(n_entry, &qeth_notify_list, list) {
172 send_sig(n_entry->signum, n_entry->task, 1);
173 }
174 spin_unlock(&qeth_notify_lock);
175
176 }
177 int
178 qeth_notifier_unregister(struct task_struct *p)
179 {
180 struct qeth_notify_list_struct *n_entry, *tmp;
181
182 QETH_DBF_TEXT(trace, 2, "notunreg");
183 spin_lock(&qeth_notify_lock);
184 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
185 if (n_entry->task == p) {
186 list_del(&n_entry->list);
187 kfree(n_entry);
188 goto out;
189 }
190 }
191 out:
192 spin_unlock(&qeth_notify_lock);
193 return 0;
194 }
195 int
196 qeth_notifier_register(struct task_struct *p, int signum)
197 {
198 struct qeth_notify_list_struct *n_entry;
199
200 /*check first if entry already exists*/
201 spin_lock(&qeth_notify_lock);
202 list_for_each_entry(n_entry, &qeth_notify_list, list) {
203 if (n_entry->task == p) {
204 n_entry->signum = signum;
205 spin_unlock(&qeth_notify_lock);
206 return 0;
207 }
208 }
209 spin_unlock(&qeth_notify_lock);
210
211 n_entry = (struct qeth_notify_list_struct *)
212 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
213 if (!n_entry)
214 return -ENOMEM;
215 n_entry->task = p;
216 n_entry->signum = signum;
217 spin_lock(&qeth_notify_lock);
218 list_add(&n_entry->list,&qeth_notify_list);
219 spin_unlock(&qeth_notify_lock);
220 return 0;
221 }
222
223
224 /**
225 * free channel command buffers
226 */
227 static void
228 qeth_clean_channel(struct qeth_channel *channel)
229 {
230 int cnt;
231
232 QETH_DBF_TEXT(setup, 2, "freech");
233 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
234 kfree(channel->iob[cnt].data);
235 }
236
237 /**
238 * free card
239 */
240 static void
241 qeth_free_card(struct qeth_card *card)
242 {
243
244 QETH_DBF_TEXT(setup, 2, "freecrd");
245 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
246 qeth_clean_channel(&card->read);
247 qeth_clean_channel(&card->write);
248 if (card->dev)
249 free_netdev(card->dev);
250 qeth_clear_ip_list(card, 0, 0);
251 qeth_clear_ipato_list(card);
252 kfree(card->ip_tbd_list);
253 qeth_free_qdio_buffers(card);
254 kfree(card);
255 }
256
257 /**
258 * alloc memory for command buffer per channel
259 */
260 static int
261 qeth_setup_channel(struct qeth_channel *channel)
262 {
263 int cnt;
264
265 QETH_DBF_TEXT(setup, 2, "setupch");
266 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
267 channel->iob[cnt].data = (char *)
268 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
269 if (channel->iob[cnt].data == NULL)
270 break;
271 channel->iob[cnt].state = BUF_STATE_FREE;
272 channel->iob[cnt].channel = channel;
273 channel->iob[cnt].callback = qeth_send_control_data_cb;
274 channel->iob[cnt].rc = 0;
275 }
276 if (cnt < QETH_CMD_BUFFER_NO) {
277 while (cnt-- > 0)
278 kfree(channel->iob[cnt].data);
279 return -ENOMEM;
280 }
281 channel->buf_no = 0;
282 channel->io_buf_no = 0;
283 atomic_set(&channel->irq_pending, 0);
284 spin_lock_init(&channel->iob_lock);
285
286 init_waitqueue_head(&channel->wait_q);
287 channel->irq_tasklet.data = (unsigned long) channel;
288 channel->irq_tasklet.func = qeth_irq_tasklet;
289 return 0;
290 }
291
292 /**
293 * alloc memory for card structure
294 */
295 static struct qeth_card *
296 qeth_alloc_card(void)
297 {
298 struct qeth_card *card;
299
300 QETH_DBF_TEXT(setup, 2, "alloccrd");
301 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
302 if (!card)
303 return NULL;
304 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
305 if (qeth_setup_channel(&card->read)) {
306 kfree(card);
307 return NULL;
308 }
309 if (qeth_setup_channel(&card->write)) {
310 qeth_clean_channel(&card->read);
311 kfree(card);
312 return NULL;
313 }
314 return card;
315 }
316
317 static long
318 __qeth_check_irb_error(struct ccw_device *cdev, unsigned long intparm,
319 struct irb *irb)
320 {
321 if (!IS_ERR(irb))
322 return 0;
323
324 switch (PTR_ERR(irb)) {
325 case -EIO:
326 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
327 QETH_DBF_TEXT(trace, 2, "ckirberr");
328 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
329 break;
330 case -ETIMEDOUT:
331 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
332 QETH_DBF_TEXT(trace, 2, "ckirberr");
333 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
334 if (intparm == QETH_RCD_PARM) {
335 struct qeth_card *card = CARD_FROM_CDEV(cdev);
336
337 if (card && (card->data.ccwdev == cdev)) {
338 card->data.state = CH_STATE_DOWN;
339 wake_up(&card->wait_q);
340 }
341 }
342 break;
343 default:
344 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
345 cdev->dev.bus_id);
346 QETH_DBF_TEXT(trace, 2, "ckirberr");
347 QETH_DBF_TEXT(trace, 2, " rc???");
348 }
349 return PTR_ERR(irb);
350 }
351
352 static int
353 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
354 {
355 int dstat,cstat;
356 char *sense;
357
358 sense = (char *) irb->ecw;
359 cstat = irb->scsw.cstat;
360 dstat = irb->scsw.dstat;
361
362 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
363 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
364 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
365 QETH_DBF_TEXT(trace,2, "CGENCHK");
366 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
367 cdev->dev.bus_id, dstat, cstat);
368 HEXDUMP16(WARN, "irb: ", irb);
369 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
370 return 1;
371 }
372
373 if (dstat & DEV_STAT_UNIT_CHECK) {
374 if (sense[SENSE_RESETTING_EVENT_BYTE] &
375 SENSE_RESETTING_EVENT_FLAG) {
376 QETH_DBF_TEXT(trace,2,"REVIND");
377 return 1;
378 }
379 if (sense[SENSE_COMMAND_REJECT_BYTE] &
380 SENSE_COMMAND_REJECT_FLAG) {
381 QETH_DBF_TEXT(trace,2,"CMDREJi");
382 return 0;
383 }
384 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
385 QETH_DBF_TEXT(trace,2,"AFFE");
386 return 1;
387 }
388 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
389 QETH_DBF_TEXT(trace,2,"ZEROSEN");
390 return 0;
391 }
392 QETH_DBF_TEXT(trace,2,"DGENCHK");
393 return 1;
394 }
395 return 0;
396 }
397 static int qeth_issue_next_read(struct qeth_card *);
398
399 /**
400 * interrupt handler
401 */
402 static void
403 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
404 {
405 int rc;
406 int cstat,dstat;
407 struct qeth_cmd_buffer *buffer;
408 struct qeth_channel *channel;
409 struct qeth_card *card;
410
411 QETH_DBF_TEXT(trace,5,"irq");
412
413 if (__qeth_check_irb_error(cdev, intparm, irb))
414 return;
415 cstat = irb->scsw.cstat;
416 dstat = irb->scsw.dstat;
417
418 card = CARD_FROM_CDEV(cdev);
419 if (!card)
420 return;
421
422 if (card->read.ccwdev == cdev){
423 channel = &card->read;
424 QETH_DBF_TEXT(trace,5,"read");
425 } else if (card->write.ccwdev == cdev) {
426 channel = &card->write;
427 QETH_DBF_TEXT(trace,5,"write");
428 } else {
429 channel = &card->data;
430 QETH_DBF_TEXT(trace,5,"data");
431 }
432 atomic_set(&channel->irq_pending, 0);
433
434 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
435 channel->state = CH_STATE_STOPPED;
436
437 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
438 channel->state = CH_STATE_HALTED;
439
440 /*let's wake up immediately on data channel*/
441 if ((channel == &card->data) && (intparm != 0) &&
442 (intparm != QETH_RCD_PARM))
443 goto out;
444
445 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
446 QETH_DBF_TEXT(trace, 6, "clrchpar");
447 /* we don't have to handle this further */
448 intparm = 0;
449 }
450 if (intparm == QETH_HALT_CHANNEL_PARM) {
451 QETH_DBF_TEXT(trace, 6, "hltchpar");
452 /* we don't have to handle this further */
453 intparm = 0;
454 }
455 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
456 (dstat & DEV_STAT_UNIT_CHECK) ||
457 (cstat)) {
458 if (irb->esw.esw0.erw.cons) {
459 /* TODO: we should make this s390dbf */
460 PRINT_WARN("sense data available on channel %s.\n",
461 CHANNEL_ID(channel));
462 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
463 HEXDUMP16(WARN,"irb: ",irb);
464 HEXDUMP16(WARN,"sense data: ",irb->ecw);
465 }
466 if (intparm == QETH_RCD_PARM) {
467 channel->state = CH_STATE_DOWN;
468 goto out;
469 }
470 rc = qeth_get_problem(cdev,irb);
471 if (rc) {
472 qeth_schedule_recovery(card);
473 goto out;
474 }
475 }
476
477 if (intparm == QETH_RCD_PARM) {
478 channel->state = CH_STATE_RCD_DONE;
479 goto out;
480 }
481 if (intparm) {
482 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
483 buffer->state = BUF_STATE_PROCESSED;
484 }
485 if (channel == &card->data)
486 return;
487
488 if (channel == &card->read &&
489 channel->state == CH_STATE_UP)
490 qeth_issue_next_read(card);
491
492 qeth_irq_tasklet((unsigned long)channel);
493 return;
494 out:
495 wake_up(&card->wait_q);
496 }
497
498 /**
499 * tasklet function scheduled from irq handler
500 */
501 static void
502 qeth_irq_tasklet(unsigned long data)
503 {
504 struct qeth_card *card;
505 struct qeth_channel *channel;
506 struct qeth_cmd_buffer *iob;
507 __u8 index;
508
509 QETH_DBF_TEXT(trace,5,"irqtlet");
510 channel = (struct qeth_channel *) data;
511 iob = channel->iob;
512 index = channel->buf_no;
513 card = CARD_FROM_CDEV(channel->ccwdev);
514 while (iob[index].state == BUF_STATE_PROCESSED) {
515 if (iob[index].callback !=NULL) {
516 iob[index].callback(channel,iob + index);
517 }
518 index = (index + 1) % QETH_CMD_BUFFER_NO;
519 }
520 channel->buf_no = index;
521 wake_up(&card->wait_q);
522 }
523
524 static int qeth_stop_card(struct qeth_card *, int);
525
526 static int
527 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
528 {
529 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
530 int rc = 0, rc2 = 0, rc3 = 0;
531 enum qeth_card_states recover_flag;
532
533 QETH_DBF_TEXT(setup, 3, "setoffl");
534 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
535
536 if (card->dev && netif_carrier_ok(card->dev))
537 netif_carrier_off(card->dev);
538 recover_flag = card->state;
539 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
540 PRINT_WARN("Stopping card %s interrupted by user!\n",
541 CARD_BUS_ID(card));
542 return -ERESTARTSYS;
543 }
544 rc = ccw_device_set_offline(CARD_DDEV(card));
545 rc2 = ccw_device_set_offline(CARD_WDEV(card));
546 rc3 = ccw_device_set_offline(CARD_RDEV(card));
547 if (!rc)
548 rc = (rc2) ? rc2 : rc3;
549 if (rc)
550 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
551 if (recover_flag == CARD_STATE_UP)
552 card->state = CARD_STATE_RECOVER;
553 qeth_notify_processes();
554 return 0;
555 }
556
557 static int
558 qeth_set_offline(struct ccwgroup_device *cgdev)
559 {
560 return __qeth_set_offline(cgdev, 0);
561 }
562
563 static int
564 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
565
566
567 static void
568 qeth_remove_device(struct ccwgroup_device *cgdev)
569 {
570 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
571 unsigned long flags;
572
573 QETH_DBF_TEXT(setup, 3, "rmdev");
574 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
575
576 if (!card)
577 return;
578
579 if (qeth_wait_for_threads(card, 0xffffffff))
580 return;
581
582 if (cgdev->state == CCWGROUP_ONLINE){
583 card->use_hard_stop = 1;
584 qeth_set_offline(cgdev);
585 }
586 /* remove form our internal list */
587 write_lock_irqsave(&qeth_card_list.rwlock, flags);
588 list_del(&card->list);
589 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
590 if (card->dev)
591 unregister_netdev(card->dev);
592 qeth_remove_device_attributes(&cgdev->dev);
593 qeth_free_card(card);
594 cgdev->dev.driver_data = NULL;
595 put_device(&cgdev->dev);
596 }
597
598 static int
599 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
600 static int
601 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
602
603 /**
604 * Add/remove address to/from card's ip list, i.e. try to add or remove
605 * reference to/from an IP address that is already registered on the card.
606 * Returns:
607 * 0 address was on card and its reference count has been adjusted,
608 * but is still > 0, so nothing has to be done
609 * also returns 0 if card was not on card and the todo was to delete
610 * the address -> there is also nothing to be done
611 * 1 address was not on card and the todo is to add it to the card's ip
612 * list
613 * -1 address was on card and its reference count has been decremented
614 * to <= 0 by the todo -> address must be removed from card
615 */
616 static int
617 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
618 struct qeth_ipaddr **__addr)
619 {
620 struct qeth_ipaddr *addr;
621 int found = 0;
622
623 list_for_each_entry(addr, &card->ip_list, entry) {
624 if (card->options.layer2) {
625 if ((addr->type == todo->type) &&
626 (memcmp(&addr->mac, &todo->mac,
627 OSA_ADDR_LEN) == 0)) {
628 found = 1;
629 break;
630 }
631 continue;
632 }
633 if ((addr->proto == QETH_PROT_IPV4) &&
634 (todo->proto == QETH_PROT_IPV4) &&
635 (addr->type == todo->type) &&
636 (addr->u.a4.addr == todo->u.a4.addr) &&
637 (addr->u.a4.mask == todo->u.a4.mask)) {
638 found = 1;
639 break;
640 }
641 if ((addr->proto == QETH_PROT_IPV6) &&
642 (todo->proto == QETH_PROT_IPV6) &&
643 (addr->type == todo->type) &&
644 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
645 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
646 sizeof(struct in6_addr)) == 0)) {
647 found = 1;
648 break;
649 }
650 }
651 if (found) {
652 addr->users += todo->users;
653 if (addr->users <= 0){
654 *__addr = addr;
655 return -1;
656 } else {
657 /* for VIPA and RXIP limit refcount to 1 */
658 if (addr->type != QETH_IP_TYPE_NORMAL)
659 addr->users = 1;
660 return 0;
661 }
662 }
663 if (todo->users > 0) {
664 /* for VIPA and RXIP limit refcount to 1 */
665 if (todo->type != QETH_IP_TYPE_NORMAL)
666 todo->users = 1;
667 return 1;
668 } else
669 return 0;
670 }
671
672 static int
673 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
674 int same_type)
675 {
676 struct qeth_ipaddr *tmp;
677
678 list_for_each_entry(tmp, list, entry) {
679 if ((tmp->proto == QETH_PROT_IPV4) &&
680 (addr->proto == QETH_PROT_IPV4) &&
681 ((same_type && (tmp->type == addr->type)) ||
682 (!same_type && (tmp->type != addr->type)) ) &&
683 (tmp->u.a4.addr == addr->u.a4.addr) ){
684 return 1;
685 }
686 if ((tmp->proto == QETH_PROT_IPV6) &&
687 (addr->proto == QETH_PROT_IPV6) &&
688 ((same_type && (tmp->type == addr->type)) ||
689 (!same_type && (tmp->type != addr->type)) ) &&
690 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
691 sizeof(struct in6_addr)) == 0) ) {
692 return 1;
693 }
694 }
695 return 0;
696 }
697
698 /*
699 * Add IP to be added to todo list. If there is already an "add todo"
700 * in this list we just incremenent the reference count.
701 * Returns 0 if we just incremented reference count.
702 */
703 static int
704 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
705 {
706 struct qeth_ipaddr *tmp, *t;
707 int found = 0;
708
709 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
710 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
711 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
712 return 0;
713 if (card->options.layer2) {
714 if ((tmp->type == addr->type) &&
715 (tmp->is_multicast == addr->is_multicast) &&
716 (memcmp(&tmp->mac, &addr->mac,
717 OSA_ADDR_LEN) == 0)) {
718 found = 1;
719 break;
720 }
721 continue;
722 }
723 if ((tmp->proto == QETH_PROT_IPV4) &&
724 (addr->proto == QETH_PROT_IPV4) &&
725 (tmp->type == addr->type) &&
726 (tmp->is_multicast == addr->is_multicast) &&
727 (tmp->u.a4.addr == addr->u.a4.addr) &&
728 (tmp->u.a4.mask == addr->u.a4.mask)) {
729 found = 1;
730 break;
731 }
732 if ((tmp->proto == QETH_PROT_IPV6) &&
733 (addr->proto == QETH_PROT_IPV6) &&
734 (tmp->type == addr->type) &&
735 (tmp->is_multicast == addr->is_multicast) &&
736 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
737 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
738 sizeof(struct in6_addr)) == 0)) {
739 found = 1;
740 break;
741 }
742 }
743 if (found){
744 if (addr->users != 0)
745 tmp->users += addr->users;
746 else
747 tmp->users += add? 1:-1;
748 if (tmp->users == 0) {
749 list_del(&tmp->entry);
750 kfree(tmp);
751 }
752 return 0;
753 } else {
754 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
755 list_add(&addr->entry, card->ip_tbd_list);
756 else {
757 if (addr->users == 0)
758 addr->users += add? 1:-1;
759 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
760 qeth_is_addr_covered_by_ipato(card, addr)){
761 QETH_DBF_TEXT(trace, 2, "tkovaddr");
762 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
763 }
764 list_add_tail(&addr->entry, card->ip_tbd_list);
765 }
766 return 1;
767 }
768 }
769
770 /**
771 * Remove IP address from list
772 */
773 static int
774 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
775 {
776 unsigned long flags;
777 int rc = 0;
778
779 QETH_DBF_TEXT(trace, 4, "delip");
780
781 if (card->options.layer2)
782 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
783 else if (addr->proto == QETH_PROT_IPV4)
784 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
785 else {
786 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
787 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
788 }
789 spin_lock_irqsave(&card->ip_lock, flags);
790 rc = __qeth_insert_ip_todo(card, addr, 0);
791 spin_unlock_irqrestore(&card->ip_lock, flags);
792 return rc;
793 }
794
795 static int
796 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
797 {
798 unsigned long flags;
799 int rc = 0;
800
801 QETH_DBF_TEXT(trace, 4, "addip");
802 if (card->options.layer2)
803 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
804 else if (addr->proto == QETH_PROT_IPV4)
805 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
806 else {
807 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
808 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
809 }
810 spin_lock_irqsave(&card->ip_lock, flags);
811 rc = __qeth_insert_ip_todo(card, addr, 1);
812 spin_unlock_irqrestore(&card->ip_lock, flags);
813 return rc;
814 }
815
816 static void
817 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
818 {
819 struct qeth_ipaddr *addr, *tmp;
820 int rc;
821 again:
822 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
823 if (addr->is_multicast) {
824 spin_unlock_irqrestore(&card->ip_lock, *flags);
825 rc = qeth_deregister_addr_entry(card, addr);
826 spin_lock_irqsave(&card->ip_lock, *flags);
827 if (!rc) {
828 list_del(&addr->entry);
829 kfree(addr);
830 goto again;
831 }
832 }
833 }
834 }
835
836 static void
837 qeth_set_ip_addr_list(struct qeth_card *card)
838 {
839 struct list_head *tbd_list;
840 struct qeth_ipaddr *todo, *addr;
841 unsigned long flags;
842 int rc;
843
844 QETH_DBF_TEXT(trace, 2, "sdiplist");
845 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
846
847 spin_lock_irqsave(&card->ip_lock, flags);
848 tbd_list = card->ip_tbd_list;
849 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
850 if (!card->ip_tbd_list) {
851 QETH_DBF_TEXT(trace, 0, "silnomem");
852 card->ip_tbd_list = tbd_list;
853 spin_unlock_irqrestore(&card->ip_lock, flags);
854 return;
855 } else
856 INIT_LIST_HEAD(card->ip_tbd_list);
857
858 while (!list_empty(tbd_list)){
859 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
860 list_del(&todo->entry);
861 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
862 __qeth_delete_all_mc(card, &flags);
863 kfree(todo);
864 continue;
865 }
866 rc = __qeth_ref_ip_on_card(card, todo, &addr);
867 if (rc == 0) {
868 /* nothing to be done; only adjusted refcount */
869 kfree(todo);
870 } else if (rc == 1) {
871 /* new entry to be added to on-card list */
872 spin_unlock_irqrestore(&card->ip_lock, flags);
873 rc = qeth_register_addr_entry(card, todo);
874 spin_lock_irqsave(&card->ip_lock, flags);
875 if (!rc)
876 list_add_tail(&todo->entry, &card->ip_list);
877 else
878 kfree(todo);
879 } else if (rc == -1) {
880 /* on-card entry to be removed */
881 list_del_init(&addr->entry);
882 spin_unlock_irqrestore(&card->ip_lock, flags);
883 rc = qeth_deregister_addr_entry(card, addr);
884 spin_lock_irqsave(&card->ip_lock, flags);
885 if (!rc)
886 kfree(addr);
887 else
888 list_add_tail(&addr->entry, &card->ip_list);
889 kfree(todo);
890 }
891 }
892 spin_unlock_irqrestore(&card->ip_lock, flags);
893 kfree(tbd_list);
894 }
895
896 static void qeth_delete_mc_addresses(struct qeth_card *);
897 static void qeth_add_multicast_ipv4(struct qeth_card *);
898 static void qeth_layer2_add_multicast(struct qeth_card *);
899 #ifdef CONFIG_QETH_IPV6
900 static void qeth_add_multicast_ipv6(struct qeth_card *);
901 #endif
902
903 static int
904 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
905 {
906 unsigned long flags;
907
908 spin_lock_irqsave(&card->thread_mask_lock, flags);
909 if ( !(card->thread_allowed_mask & thread) ||
910 (card->thread_start_mask & thread) ) {
911 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
912 return -EPERM;
913 }
914 card->thread_start_mask |= thread;
915 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
916 return 0;
917 }
918
919 static void
920 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
921 {
922 unsigned long flags;
923
924 spin_lock_irqsave(&card->thread_mask_lock, flags);
925 card->thread_start_mask &= ~thread;
926 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
927 wake_up(&card->wait_q);
928 }
929
930 static void
931 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
932 {
933 unsigned long flags;
934
935 spin_lock_irqsave(&card->thread_mask_lock, flags);
936 card->thread_running_mask &= ~thread;
937 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
938 wake_up(&card->wait_q);
939 }
940
941 static int
942 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
943 {
944 unsigned long flags;
945 int rc = 0;
946
947 spin_lock_irqsave(&card->thread_mask_lock, flags);
948 if (card->thread_start_mask & thread){
949 if ((card->thread_allowed_mask & thread) &&
950 !(card->thread_running_mask & thread)){
951 rc = 1;
952 card->thread_start_mask &= ~thread;
953 card->thread_running_mask |= thread;
954 } else
955 rc = -EPERM;
956 }
957 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
958 return rc;
959 }
960
961 static int
962 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
963 {
964 int rc = 0;
965
966 wait_event(card->wait_q,
967 (rc = __qeth_do_run_thread(card, thread)) >= 0);
968 return rc;
969 }
970
971 static int
972 qeth_recover(void *ptr)
973 {
974 struct qeth_card *card;
975 int rc = 0;
976
977 card = (struct qeth_card *) ptr;
978 daemonize("qeth_recover");
979 QETH_DBF_TEXT(trace,2,"recover1");
980 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
981 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
982 return 0;
983 QETH_DBF_TEXT(trace,2,"recover2");
984 PRINT_WARN("Recovery of device %s started ...\n",
985 CARD_BUS_ID(card));
986 card->use_hard_stop = 1;
987 __qeth_set_offline(card->gdev,1);
988 rc = __qeth_set_online(card->gdev,1);
989 /* don't run another scheduled recovery */
990 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
991 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
992 if (!rc)
993 PRINT_INFO("Device %s successfully recovered!\n",
994 CARD_BUS_ID(card));
995 else
996 PRINT_INFO("Device %s could not be recovered!\n",
997 CARD_BUS_ID(card));
998 return 0;
999 }
1000
1001 void
1002 qeth_schedule_recovery(struct qeth_card *card)
1003 {
1004 QETH_DBF_TEXT(trace,2,"startrec");
1005 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1006 schedule_work(&card->kernel_thread_starter);
1007 }
1008
1009 static int
1010 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1011 {
1012 unsigned long flags;
1013 int rc = 0;
1014
1015 spin_lock_irqsave(&card->thread_mask_lock, flags);
1016 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1017 (u8) card->thread_start_mask,
1018 (u8) card->thread_allowed_mask,
1019 (u8) card->thread_running_mask);
1020 rc = (card->thread_start_mask & thread);
1021 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1022 return rc;
1023 }
1024
1025 static void
1026 qeth_start_kernel_thread(struct work_struct *work)
1027 {
1028 struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1029 QETH_DBF_TEXT(trace , 2, "strthrd");
1030
1031 if (card->read.state != CH_STATE_UP &&
1032 card->write.state != CH_STATE_UP)
1033 return;
1034 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1035 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1036 }
1037
1038
1039 static void
1040 qeth_set_intial_options(struct qeth_card *card)
1041 {
1042 card->options.route4.type = NO_ROUTER;
1043 #ifdef CONFIG_QETH_IPV6
1044 card->options.route6.type = NO_ROUTER;
1045 #endif /* QETH_IPV6 */
1046 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1047 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1048 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1049 card->options.fake_broadcast = 0;
1050 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1051 card->options.fake_ll = 0;
1052 if (card->info.type == QETH_CARD_TYPE_OSN)
1053 card->options.layer2 = 1;
1054 else
1055 card->options.layer2 = 0;
1056 card->options.performance_stats = 0;
1057 card->options.rx_sg_cb = QETH_RX_SG_CB;
1058 }
1059
1060 /**
1061 * initialize channels ,card and all state machines
1062 */
1063 static int
1064 qeth_setup_card(struct qeth_card *card)
1065 {
1066
1067 QETH_DBF_TEXT(setup, 2, "setupcrd");
1068 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1069
1070 card->read.state = CH_STATE_DOWN;
1071 card->write.state = CH_STATE_DOWN;
1072 card->data.state = CH_STATE_DOWN;
1073 card->state = CARD_STATE_DOWN;
1074 card->lan_online = 0;
1075 card->use_hard_stop = 0;
1076 card->dev = NULL;
1077 #ifdef CONFIG_QETH_VLAN
1078 spin_lock_init(&card->vlanlock);
1079 card->vlangrp = NULL;
1080 #endif
1081 spin_lock_init(&card->lock);
1082 spin_lock_init(&card->ip_lock);
1083 spin_lock_init(&card->thread_mask_lock);
1084 card->thread_start_mask = 0;
1085 card->thread_allowed_mask = 0;
1086 card->thread_running_mask = 0;
1087 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1088 INIT_LIST_HEAD(&card->ip_list);
1089 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1090 if (!card->ip_tbd_list) {
1091 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1092 return -ENOMEM;
1093 }
1094 INIT_LIST_HEAD(card->ip_tbd_list);
1095 INIT_LIST_HEAD(&card->cmd_waiter_list);
1096 init_waitqueue_head(&card->wait_q);
1097 /* intial options */
1098 qeth_set_intial_options(card);
1099 /* IP address takeover */
1100 INIT_LIST_HEAD(&card->ipato.entries);
1101 card->ipato.enabled = 0;
1102 card->ipato.invert4 = 0;
1103 card->ipato.invert6 = 0;
1104 /* init QDIO stuff */
1105 qeth_init_qdio_info(card);
1106 return 0;
1107 }
1108
1109 static int
1110 is_1920_device (struct qeth_card *card)
1111 {
1112 int single_queue = 0;
1113 struct ccw_device *ccwdev;
1114 struct channelPath_dsc {
1115 u8 flags;
1116 u8 lsn;
1117 u8 desc;
1118 u8 chpid;
1119 u8 swla;
1120 u8 zeroes;
1121 u8 chla;
1122 u8 chpp;
1123 } *chp_dsc;
1124
1125 QETH_DBF_TEXT(setup, 2, "chk_1920");
1126
1127 ccwdev = card->data.ccwdev;
1128 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1129 if (chp_dsc != NULL) {
1130 /* CHPP field bit 6 == 1 -> single queue */
1131 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1132 kfree(chp_dsc);
1133 }
1134 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1135 return single_queue;
1136 }
1137
1138 static int
1139 qeth_determine_card_type(struct qeth_card *card)
1140 {
1141 int i = 0;
1142
1143 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1144
1145 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1146 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1147 while (known_devices[i][4]) {
1148 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1149 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1150 card->info.type = known_devices[i][4];
1151 card->qdio.no_out_queues = known_devices[i][8];
1152 card->info.is_multicast_different = known_devices[i][9];
1153 if (is_1920_device(card)) {
1154 PRINT_INFO("Priority Queueing not able "
1155 "due to hardware limitations!\n");
1156 card->qdio.no_out_queues = 1;
1157 card->qdio.default_out_queue = 0;
1158 }
1159 return 0;
1160 }
1161 i++;
1162 }
1163 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1164 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1165 return -ENOENT;
1166 }
1167
1168 static int
1169 qeth_probe_device(struct ccwgroup_device *gdev)
1170 {
1171 struct qeth_card *card;
1172 struct device *dev;
1173 unsigned long flags;
1174 int rc;
1175
1176 QETH_DBF_TEXT(setup, 2, "probedev");
1177
1178 dev = &gdev->dev;
1179 if (!get_device(dev))
1180 return -ENODEV;
1181
1182 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1183
1184 card = qeth_alloc_card();
1185 if (!card) {
1186 put_device(dev);
1187 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1188 return -ENOMEM;
1189 }
1190 card->read.ccwdev = gdev->cdev[0];
1191 card->write.ccwdev = gdev->cdev[1];
1192 card->data.ccwdev = gdev->cdev[2];
1193 gdev->dev.driver_data = card;
1194 card->gdev = gdev;
1195 gdev->cdev[0]->handler = qeth_irq;
1196 gdev->cdev[1]->handler = qeth_irq;
1197 gdev->cdev[2]->handler = qeth_irq;
1198
1199 if ((rc = qeth_determine_card_type(card))){
1200 PRINT_WARN("%s: not a valid card type\n", __func__);
1201 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1202 put_device(dev);
1203 qeth_free_card(card);
1204 return rc;
1205 }
1206 if ((rc = qeth_setup_card(card))){
1207 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1208 put_device(dev);
1209 qeth_free_card(card);
1210 return rc;
1211 }
1212 rc = qeth_create_device_attributes(dev);
1213 if (rc) {
1214 put_device(dev);
1215 qeth_free_card(card);
1216 return rc;
1217 }
1218 /* insert into our internal list */
1219 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1220 list_add_tail(&card->list, &qeth_card_list.list);
1221 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1222 return rc;
1223 }
1224
1225
1226 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1227 int *length)
1228 {
1229 struct ciw *ciw;
1230 char *rcd_buf;
1231 int ret;
1232 struct qeth_channel *channel = &card->data;
1233 unsigned long flags;
1234
1235 /*
1236 * scan for RCD command in extended SenseID data
1237 */
1238 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1239 if (!ciw || ciw->cmd == 0)
1240 return -EOPNOTSUPP;
1241 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1242 if (!rcd_buf)
1243 return -ENOMEM;
1244
1245 channel->ccw.cmd_code = ciw->cmd;
1246 channel->ccw.cda = (__u32) __pa (rcd_buf);
1247 channel->ccw.count = ciw->count;
1248 channel->ccw.flags = CCW_FLAG_SLI;
1249 channel->state = CH_STATE_RCD;
1250 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1251 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1252 QETH_RCD_PARM, LPM_ANYPATH, 0,
1253 QETH_RCD_TIMEOUT);
1254 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1255 if (!ret)
1256 wait_event(card->wait_q,
1257 (channel->state == CH_STATE_RCD_DONE ||
1258 channel->state == CH_STATE_DOWN));
1259 if (channel->state == CH_STATE_DOWN)
1260 ret = -EIO;
1261 else
1262 channel->state = CH_STATE_DOWN;
1263 if (ret) {
1264 kfree(rcd_buf);
1265 *buffer = NULL;
1266 *length = 0;
1267 } else {
1268 *length = ciw->count;
1269 *buffer = rcd_buf;
1270 }
1271 return ret;
1272 }
1273
1274 static int
1275 qeth_get_unitaddr(struct qeth_card *card)
1276 {
1277 int length;
1278 char *prcd;
1279 int rc;
1280
1281 QETH_DBF_TEXT(setup, 2, "getunit");
1282 rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1283 if (rc) {
1284 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1285 CARD_DDEV_ID(card), rc);
1286 return rc;
1287 }
1288 card->info.chpid = prcd[30];
1289 card->info.unit_addr2 = prcd[31];
1290 card->info.cula = prcd[63];
1291 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1292 (prcd[0x11] == _ascebc['M']));
1293 kfree(prcd);
1294 return 0;
1295 }
1296
1297 static void
1298 qeth_init_tokens(struct qeth_card *card)
1299 {
1300 card->token.issuer_rm_w = 0x00010103UL;
1301 card->token.cm_filter_w = 0x00010108UL;
1302 card->token.cm_connection_w = 0x0001010aUL;
1303 card->token.ulp_filter_w = 0x0001010bUL;
1304 card->token.ulp_connection_w = 0x0001010dUL;
1305 }
1306
1307 static inline __u16
1308 raw_devno_from_bus_id(char *id)
1309 {
1310 id += (strlen(id) - 4);
1311 return (__u16) simple_strtoul(id, &id, 16);
1312 }
1313 /**
1314 * setup channel
1315 */
1316 static void
1317 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1318 {
1319 struct qeth_card *card;
1320
1321 QETH_DBF_TEXT(trace, 4, "setupccw");
1322 card = CARD_FROM_CDEV(channel->ccwdev);
1323 if (channel == &card->read)
1324 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1325 else
1326 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1327 channel->ccw.count = len;
1328 channel->ccw.cda = (__u32) __pa(iob);
1329 }
1330
1331 /**
1332 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1333 */
1334 static struct qeth_cmd_buffer *
1335 __qeth_get_buffer(struct qeth_channel *channel)
1336 {
1337 __u8 index;
1338
1339 QETH_DBF_TEXT(trace, 6, "getbuff");
1340 index = channel->io_buf_no;
1341 do {
1342 if (channel->iob[index].state == BUF_STATE_FREE) {
1343 channel->iob[index].state = BUF_STATE_LOCKED;
1344 channel->io_buf_no = (channel->io_buf_no + 1) %
1345 QETH_CMD_BUFFER_NO;
1346 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1347 return channel->iob + index;
1348 }
1349 index = (index + 1) % QETH_CMD_BUFFER_NO;
1350 } while(index != channel->io_buf_no);
1351
1352 return NULL;
1353 }
1354
1355 /**
1356 * release command buffer
1357 */
1358 static void
1359 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1360 {
1361 unsigned long flags;
1362
1363 QETH_DBF_TEXT(trace, 6, "relbuff");
1364 spin_lock_irqsave(&channel->iob_lock, flags);
1365 memset(iob->data, 0, QETH_BUFSIZE);
1366 iob->state = BUF_STATE_FREE;
1367 iob->callback = qeth_send_control_data_cb;
1368 iob->rc = 0;
1369 spin_unlock_irqrestore(&channel->iob_lock, flags);
1370 }
1371
1372 static struct qeth_cmd_buffer *
1373 qeth_get_buffer(struct qeth_channel *channel)
1374 {
1375 struct qeth_cmd_buffer *buffer = NULL;
1376 unsigned long flags;
1377
1378 spin_lock_irqsave(&channel->iob_lock, flags);
1379 buffer = __qeth_get_buffer(channel);
1380 spin_unlock_irqrestore(&channel->iob_lock, flags);
1381 return buffer;
1382 }
1383
1384 static struct qeth_cmd_buffer *
1385 qeth_wait_for_buffer(struct qeth_channel *channel)
1386 {
1387 struct qeth_cmd_buffer *buffer;
1388 wait_event(channel->wait_q,
1389 ((buffer = qeth_get_buffer(channel)) != NULL));
1390 return buffer;
1391 }
1392
1393 static void
1394 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1395 {
1396 int cnt;
1397
1398 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1399 qeth_release_buffer(channel,&channel->iob[cnt]);
1400 channel->buf_no = 0;
1401 channel->io_buf_no = 0;
1402 }
1403
1404 /**
1405 * start IDX for read and write channel
1406 */
1407 static int
1408 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1409 void (*idx_reply_cb)(struct qeth_channel *,
1410 struct qeth_cmd_buffer *))
1411 {
1412 struct qeth_cmd_buffer *iob;
1413 unsigned long flags;
1414 int rc;
1415 struct qeth_card *card;
1416
1417 QETH_DBF_TEXT(setup, 2, "idxanswr");
1418 card = CARD_FROM_CDEV(channel->ccwdev);
1419 iob = qeth_get_buffer(channel);
1420 iob->callback = idx_reply_cb;
1421 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1422 channel->ccw.count = QETH_BUFSIZE;
1423 channel->ccw.cda = (__u32) __pa(iob->data);
1424
1425 wait_event(card->wait_q,
1426 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1427 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1428 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1429 rc = ccw_device_start(channel->ccwdev,
1430 &channel->ccw,(addr_t) iob, 0, 0);
1431 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1432
1433 if (rc) {
1434 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1435 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1436 atomic_set(&channel->irq_pending, 0);
1437 wake_up(&card->wait_q);
1438 return rc;
1439 }
1440 rc = wait_event_interruptible_timeout(card->wait_q,
1441 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1442 if (rc == -ERESTARTSYS)
1443 return rc;
1444 if (channel->state != CH_STATE_UP){
1445 rc = -ETIME;
1446 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1447 qeth_clear_cmd_buffers(channel);
1448 } else
1449 rc = 0;
1450 return rc;
1451 }
1452
1453 static int
1454 qeth_idx_activate_channel(struct qeth_channel *channel,
1455 void (*idx_reply_cb)(struct qeth_channel *,
1456 struct qeth_cmd_buffer *))
1457 {
1458 struct qeth_card *card;
1459 struct qeth_cmd_buffer *iob;
1460 unsigned long flags;
1461 __u16 temp;
1462 int rc;
1463
1464 card = CARD_FROM_CDEV(channel->ccwdev);
1465
1466 QETH_DBF_TEXT(setup, 2, "idxactch");
1467
1468 iob = qeth_get_buffer(channel);
1469 iob->callback = idx_reply_cb;
1470 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1471 channel->ccw.count = IDX_ACTIVATE_SIZE;
1472 channel->ccw.cda = (__u32) __pa(iob->data);
1473 if (channel == &card->write) {
1474 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1475 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1476 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1477 card->seqno.trans_hdr++;
1478 } else {
1479 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1480 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1481 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1482 }
1483 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1484 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1485 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1486 &card->info.func_level,sizeof(__u16));
1487 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1488 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1489 temp = (card->info.cula << 8) + card->info.unit_addr2;
1490 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1491
1492 wait_event(card->wait_q,
1493 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1494 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1495 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1496 rc = ccw_device_start(channel->ccwdev,
1497 &channel->ccw,(addr_t) iob, 0, 0);
1498 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1499
1500 if (rc) {
1501 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1502 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1503 atomic_set(&channel->irq_pending, 0);
1504 wake_up(&card->wait_q);
1505 return rc;
1506 }
1507 rc = wait_event_interruptible_timeout(card->wait_q,
1508 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1509 if (rc == -ERESTARTSYS)
1510 return rc;
1511 if (channel->state != CH_STATE_ACTIVATING) {
1512 PRINT_WARN("qeth: IDX activate timed out!\n");
1513 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1514 qeth_clear_cmd_buffers(channel);
1515 return -ETIME;
1516 }
1517 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1518 }
1519
1520 static int
1521 qeth_peer_func_level(int level)
1522 {
1523 if ((level & 0xff) == 8)
1524 return (level & 0xff) + 0x400;
1525 if (((level >> 8) & 3) == 1)
1526 return (level & 0xff) + 0x200;
1527 return level;
1528 }
1529
1530 static void
1531 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1532 {
1533 struct qeth_card *card;
1534 __u16 temp;
1535
1536 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1537
1538 if (channel->state == CH_STATE_DOWN) {
1539 channel->state = CH_STATE_ACTIVATING;
1540 goto out;
1541 }
1542 card = CARD_FROM_CDEV(channel->ccwdev);
1543
1544 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1545 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1546 "reply\n", CARD_WDEV_ID(card));
1547 goto out;
1548 }
1549 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1550 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1551 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1552 "function level mismatch "
1553 "(sent: 0x%x, received: 0x%x)\n",
1554 CARD_WDEV_ID(card), card->info.func_level, temp);
1555 goto out;
1556 }
1557 channel->state = CH_STATE_UP;
1558 out:
1559 qeth_release_buffer(channel, iob);
1560 }
1561
1562 static int
1563 qeth_check_idx_response(unsigned char *buffer)
1564 {
1565 if (!buffer)
1566 return 0;
1567
1568 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1569 if ((buffer[2] & 0xc0) == 0xc0) {
1570 PRINT_WARN("received an IDX TERMINATE "
1571 "with cause code 0x%02x%s\n",
1572 buffer[4],
1573 ((buffer[4] == 0x22) ?
1574 " -- try another portname" : ""));
1575 QETH_DBF_TEXT(trace, 2, "ckidxres");
1576 QETH_DBF_TEXT(trace, 2, " idxterm");
1577 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1578 return -EIO;
1579 }
1580 return 0;
1581 }
1582
1583 static void
1584 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1585 {
1586 struct qeth_card *card;
1587 __u16 temp;
1588
1589 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1590 if (channel->state == CH_STATE_DOWN) {
1591 channel->state = CH_STATE_ACTIVATING;
1592 goto out;
1593 }
1594
1595 card = CARD_FROM_CDEV(channel->ccwdev);
1596 if (qeth_check_idx_response(iob->data)) {
1597 goto out;
1598 }
1599 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1600 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1601 "reply\n", CARD_RDEV_ID(card));
1602 goto out;
1603 }
1604
1605 /**
1606 * temporary fix for microcode bug
1607 * to revert it,replace OR by AND
1608 */
1609 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1610 (card->info.type == QETH_CARD_TYPE_OSAE) )
1611 card->info.portname_required = 1;
1612
1613 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1614 if (temp != qeth_peer_func_level(card->info.func_level)) {
1615 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1616 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1617 CARD_RDEV_ID(card), card->info.func_level, temp);
1618 goto out;
1619 }
1620 memcpy(&card->token.issuer_rm_r,
1621 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1622 QETH_MPC_TOKEN_LENGTH);
1623 memcpy(&card->info.mcl_level[0],
1624 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1625 channel->state = CH_STATE_UP;
1626 out:
1627 qeth_release_buffer(channel,iob);
1628 }
1629
1630 static int
1631 qeth_issue_next_read(struct qeth_card *card)
1632 {
1633 int rc;
1634 struct qeth_cmd_buffer *iob;
1635
1636 QETH_DBF_TEXT(trace,5,"issnxrd");
1637 if (card->read.state != CH_STATE_UP)
1638 return -EIO;
1639 iob = qeth_get_buffer(&card->read);
1640 if (!iob) {
1641 PRINT_WARN("issue_next_read failed: no iob available!\n");
1642 return -ENOMEM;
1643 }
1644 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1645 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1646 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1647 (addr_t) iob, 0, 0);
1648 if (rc) {
1649 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1650 atomic_set(&card->read.irq_pending, 0);
1651 qeth_schedule_recovery(card);
1652 wake_up(&card->wait_q);
1653 }
1654 return rc;
1655 }
1656
1657 static struct qeth_reply *
1658 qeth_alloc_reply(struct qeth_card *card)
1659 {
1660 struct qeth_reply *reply;
1661
1662 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1663 if (reply){
1664 atomic_set(&reply->refcnt, 1);
1665 atomic_set(&reply->received, 0);
1666 reply->card = card;
1667 };
1668 return reply;
1669 }
1670
1671 static void
1672 qeth_get_reply(struct qeth_reply *reply)
1673 {
1674 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1675 atomic_inc(&reply->refcnt);
1676 }
1677
1678 static void
1679 qeth_put_reply(struct qeth_reply *reply)
1680 {
1681 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1682 if (atomic_dec_and_test(&reply->refcnt))
1683 kfree(reply);
1684 }
1685
1686 static void
1687 qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, struct qeth_card *card)
1688 {
1689 int rc;
1690 int com;
1691 char * ipa_name;
1692
1693 com = cmd->hdr.command;
1694 rc = cmd->hdr.return_code;
1695 ipa_name = qeth_get_ipa_cmd_name(com);
1696
1697 PRINT_ERR("%s(x%X) for %s returned x%X \"%s\"\n", ipa_name, com,
1698 QETH_CARD_IFNAME(card), rc, qeth_get_ipa_msg(rc));
1699 }
1700
1701 static struct qeth_ipa_cmd *
1702 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1703 {
1704 struct qeth_ipa_cmd *cmd = NULL;
1705
1706 QETH_DBF_TEXT(trace,5,"chkipad");
1707 if (IS_IPA(iob->data)){
1708 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1709 if (IS_IPA_REPLY(cmd)) {
1710 if (cmd->hdr.return_code)
1711 qeth_issue_ipa_msg(cmd, card);
1712 return cmd;
1713 }
1714 else {
1715 switch (cmd->hdr.command) {
1716 case IPA_CMD_STOPLAN:
1717 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1718 "there is a network problem or "
1719 "someone pulled the cable or "
1720 "disabled the port.\n",
1721 QETH_CARD_IFNAME(card),
1722 card->info.chpid);
1723 card->lan_online = 0;
1724 if (card->dev && netif_carrier_ok(card->dev))
1725 netif_carrier_off(card->dev);
1726 return NULL;
1727 case IPA_CMD_STARTLAN:
1728 PRINT_INFO("Link reestablished on %s "
1729 "(CHPID 0x%X). Scheduling "
1730 "IP address reset.\n",
1731 QETH_CARD_IFNAME(card),
1732 card->info.chpid);
1733 netif_carrier_on(card->dev);
1734 qeth_schedule_recovery(card);
1735 return NULL;
1736 case IPA_CMD_MODCCID:
1737 return cmd;
1738 case IPA_CMD_REGISTER_LOCAL_ADDR:
1739 QETH_DBF_TEXT(trace,3, "irla");
1740 break;
1741 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1742 QETH_DBF_TEXT(trace,3, "urla");
1743 break;
1744 default:
1745 PRINT_WARN("Received data is IPA "
1746 "but not a reply!\n");
1747 break;
1748 }
1749 }
1750 }
1751 return cmd;
1752 }
1753
1754 /**
1755 * wake all waiting ipa commands
1756 */
1757 static void
1758 qeth_clear_ipacmd_list(struct qeth_card *card)
1759 {
1760 struct qeth_reply *reply, *r;
1761 unsigned long flags;
1762
1763 QETH_DBF_TEXT(trace, 4, "clipalst");
1764
1765 spin_lock_irqsave(&card->lock, flags);
1766 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1767 qeth_get_reply(reply);
1768 reply->rc = -EIO;
1769 atomic_inc(&reply->received);
1770 list_del_init(&reply->list);
1771 wake_up(&reply->wait_q);
1772 qeth_put_reply(reply);
1773 }
1774 spin_unlock_irqrestore(&card->lock, flags);
1775 }
1776
1777 static void
1778 qeth_send_control_data_cb(struct qeth_channel *channel,
1779 struct qeth_cmd_buffer *iob)
1780 {
1781 struct qeth_card *card;
1782 struct qeth_reply *reply, *r;
1783 struct qeth_ipa_cmd *cmd;
1784 unsigned long flags;
1785 int keep_reply;
1786
1787 QETH_DBF_TEXT(trace,4,"sndctlcb");
1788
1789 card = CARD_FROM_CDEV(channel->ccwdev);
1790 if (qeth_check_idx_response(iob->data)) {
1791 qeth_clear_ipacmd_list(card);
1792 qeth_schedule_recovery(card);
1793 goto out;
1794 }
1795
1796 cmd = qeth_check_ipa_data(card, iob);
1797 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1798 goto out;
1799 /*in case of OSN : check if cmd is set */
1800 if (card->info.type == QETH_CARD_TYPE_OSN &&
1801 cmd &&
1802 cmd->hdr.command != IPA_CMD_STARTLAN &&
1803 card->osn_info.assist_cb != NULL) {
1804 card->osn_info.assist_cb(card->dev, cmd);
1805 goto out;
1806 }
1807
1808 spin_lock_irqsave(&card->lock, flags);
1809 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1810 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1811 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1812 qeth_get_reply(reply);
1813 list_del_init(&reply->list);
1814 spin_unlock_irqrestore(&card->lock, flags);
1815 keep_reply = 0;
1816 if (reply->callback != NULL) {
1817 if (cmd) {
1818 reply->offset = (__u16)((char*)cmd -
1819 (char *)iob->data);
1820 keep_reply = reply->callback(card,
1821 reply,
1822 (unsigned long)cmd);
1823 } else
1824 keep_reply = reply->callback(card,
1825 reply,
1826 (unsigned long)iob);
1827 }
1828 if (cmd)
1829 reply->rc = (u16) cmd->hdr.return_code;
1830 else if (iob->rc)
1831 reply->rc = iob->rc;
1832 if (keep_reply) {
1833 spin_lock_irqsave(&card->lock, flags);
1834 list_add_tail(&reply->list,
1835 &card->cmd_waiter_list);
1836 spin_unlock_irqrestore(&card->lock, flags);
1837 } else {
1838 atomic_inc(&reply->received);
1839 wake_up(&reply->wait_q);
1840 }
1841 qeth_put_reply(reply);
1842 goto out;
1843 }
1844 }
1845 spin_unlock_irqrestore(&card->lock, flags);
1846 out:
1847 memcpy(&card->seqno.pdu_hdr_ack,
1848 QETH_PDU_HEADER_SEQ_NO(iob->data),
1849 QETH_SEQ_NO_LENGTH);
1850 qeth_release_buffer(channel,iob);
1851 }
1852
1853 static void
1854 qeth_prepare_control_data(struct qeth_card *card, int len,
1855 struct qeth_cmd_buffer *iob)
1856 {
1857 qeth_setup_ccw(&card->write,iob->data,len);
1858 iob->callback = qeth_release_buffer;
1859
1860 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1861 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1862 card->seqno.trans_hdr++;
1863 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1864 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1865 card->seqno.pdu_hdr++;
1866 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1867 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1868 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1869 }
1870
1871 static int
1872 qeth_send_control_data(struct qeth_card *card, int len,
1873 struct qeth_cmd_buffer *iob,
1874 int (*reply_cb)
1875 (struct qeth_card *, struct qeth_reply*, unsigned long),
1876 void *reply_param)
1877
1878 {
1879 int rc;
1880 unsigned long flags;
1881 struct qeth_reply *reply = NULL;
1882 unsigned long timeout;
1883
1884 QETH_DBF_TEXT(trace, 2, "sendctl");
1885
1886 reply = qeth_alloc_reply(card);
1887 if (!reply) {
1888 PRINT_WARN("Could no alloc qeth_reply!\n");
1889 return -ENOMEM;
1890 }
1891 reply->callback = reply_cb;
1892 reply->param = reply_param;
1893 if (card->state == CARD_STATE_DOWN)
1894 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1895 else
1896 reply->seqno = card->seqno.ipa++;
1897 init_waitqueue_head(&reply->wait_q);
1898 spin_lock_irqsave(&card->lock, flags);
1899 list_add_tail(&reply->list, &card->cmd_waiter_list);
1900 spin_unlock_irqrestore(&card->lock, flags);
1901 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1902
1903 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1904 qeth_prepare_control_data(card, len, iob);
1905
1906 if (IS_IPA(iob->data))
1907 timeout = jiffies + QETH_IPA_TIMEOUT;
1908 else
1909 timeout = jiffies + QETH_TIMEOUT;
1910
1911 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1912 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1913 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1914 (addr_t) iob, 0, 0);
1915 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1916 if (rc){
1917 PRINT_WARN("qeth_send_control_data: "
1918 "ccw_device_start rc = %i\n", rc);
1919 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1920 spin_lock_irqsave(&card->lock, flags);
1921 list_del_init(&reply->list);
1922 qeth_put_reply(reply);
1923 spin_unlock_irqrestore(&card->lock, flags);
1924 qeth_release_buffer(iob->channel, iob);
1925 atomic_set(&card->write.irq_pending, 0);
1926 wake_up(&card->wait_q);
1927 return rc;
1928 }
1929 while (!atomic_read(&reply->received)) {
1930 if (time_after(jiffies, timeout)) {
1931 spin_lock_irqsave(&reply->card->lock, flags);
1932 list_del_init(&reply->list);
1933 spin_unlock_irqrestore(&reply->card->lock, flags);
1934 reply->rc = -ETIME;
1935 atomic_inc(&reply->received);
1936 wake_up(&reply->wait_q);
1937 }
1938 };
1939 rc = reply->rc;
1940 qeth_put_reply(reply);
1941 return rc;
1942 }
1943
1944 static int
1945 qeth_osn_send_control_data(struct qeth_card *card, int len,
1946 struct qeth_cmd_buffer *iob)
1947 {
1948 unsigned long flags;
1949 int rc = 0;
1950
1951 QETH_DBF_TEXT(trace, 5, "osndctrd");
1952
1953 wait_event(card->wait_q,
1954 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1955 qeth_prepare_control_data(card, len, iob);
1956 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1957 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1958 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1959 (addr_t) iob, 0, 0);
1960 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1961 if (rc){
1962 PRINT_WARN("qeth_osn_send_control_data: "
1963 "ccw_device_start rc = %i\n", rc);
1964 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1965 qeth_release_buffer(iob->channel, iob);
1966 atomic_set(&card->write.irq_pending, 0);
1967 wake_up(&card->wait_q);
1968 }
1969 return rc;
1970 }
1971
1972 static inline void
1973 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1974 char prot_type)
1975 {
1976 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1977 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1978 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1979 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1980 }
1981
1982 static int
1983 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1984 int data_len)
1985 {
1986 u16 s1, s2;
1987
1988 QETH_DBF_TEXT(trace,4,"osndipa");
1989
1990 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1991 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1992 s2 = (u16)data_len;
1993 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1994 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1995 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1996 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1997 return qeth_osn_send_control_data(card, s1, iob);
1998 }
1999
2000 static int
2001 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2002 int (*reply_cb)
2003 (struct qeth_card *,struct qeth_reply*, unsigned long),
2004 void *reply_param)
2005 {
2006 int rc;
2007 char prot_type;
2008
2009 QETH_DBF_TEXT(trace,4,"sendipa");
2010
2011 if (card->options.layer2)
2012 if (card->info.type == QETH_CARD_TYPE_OSN)
2013 prot_type = QETH_PROT_OSN2;
2014 else
2015 prot_type = QETH_PROT_LAYER2;
2016 else
2017 prot_type = QETH_PROT_TCPIP;
2018 qeth_prepare_ipa_cmd(card,iob,prot_type);
2019 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
2020 reply_cb, reply_param);
2021 return rc;
2022 }
2023
2024
2025 static int
2026 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2027 unsigned long data)
2028 {
2029 struct qeth_cmd_buffer *iob;
2030
2031 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2032
2033 iob = (struct qeth_cmd_buffer *) data;
2034 memcpy(&card->token.cm_filter_r,
2035 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2036 QETH_MPC_TOKEN_LENGTH);
2037 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2038 return 0;
2039 }
2040
2041 static int
2042 qeth_cm_enable(struct qeth_card *card)
2043 {
2044 int rc;
2045 struct qeth_cmd_buffer *iob;
2046
2047 QETH_DBF_TEXT(setup,2,"cmenable");
2048
2049 iob = qeth_wait_for_buffer(&card->write);
2050 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2051 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2052 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2053 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2054 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2055
2056 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2057 qeth_cm_enable_cb, NULL);
2058 return rc;
2059 }
2060
2061 static int
2062 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2063 unsigned long data)
2064 {
2065
2066 struct qeth_cmd_buffer *iob;
2067
2068 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2069
2070 iob = (struct qeth_cmd_buffer *) data;
2071 memcpy(&card->token.cm_connection_r,
2072 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2073 QETH_MPC_TOKEN_LENGTH);
2074 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2075 return 0;
2076 }
2077
2078 static int
2079 qeth_cm_setup(struct qeth_card *card)
2080 {
2081 int rc;
2082 struct qeth_cmd_buffer *iob;
2083
2084 QETH_DBF_TEXT(setup,2,"cmsetup");
2085
2086 iob = qeth_wait_for_buffer(&card->write);
2087 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2088 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2089 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2090 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2091 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2092 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2093 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2094 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2095 qeth_cm_setup_cb, NULL);
2096 return rc;
2097
2098 }
2099
2100 static int
2101 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2102 unsigned long data)
2103 {
2104
2105 __u16 mtu, framesize;
2106 __u16 len;
2107 __u8 link_type;
2108 struct qeth_cmd_buffer *iob;
2109
2110 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2111
2112 iob = (struct qeth_cmd_buffer *) data;
2113 memcpy(&card->token.ulp_filter_r,
2114 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2115 QETH_MPC_TOKEN_LENGTH);
2116 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2117 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2118 mtu = qeth_get_mtu_outof_framesize(framesize);
2119 if (!mtu) {
2120 iob->rc = -EINVAL;
2121 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2122 return 0;
2123 }
2124 card->info.max_mtu = mtu;
2125 card->info.initial_mtu = mtu;
2126 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2127 } else {
2128 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2129 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2130 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2131 }
2132
2133 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2134 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2135 memcpy(&link_type,
2136 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2137 card->info.link_type = link_type;
2138 } else
2139 card->info.link_type = 0;
2140 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2141 return 0;
2142 }
2143
2144 static int
2145 qeth_ulp_enable(struct qeth_card *card)
2146 {
2147 int rc;
2148 char prot_type;
2149 struct qeth_cmd_buffer *iob;
2150
2151 /*FIXME: trace view callbacks*/
2152 QETH_DBF_TEXT(setup,2,"ulpenabl");
2153
2154 iob = qeth_wait_for_buffer(&card->write);
2155 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2156
2157 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2158 (__u8) card->info.portno;
2159 if (card->options.layer2)
2160 if (card->info.type == QETH_CARD_TYPE_OSN)
2161 prot_type = QETH_PROT_OSN2;
2162 else
2163 prot_type = QETH_PROT_LAYER2;
2164 else
2165 prot_type = QETH_PROT_TCPIP;
2166
2167 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2168 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2169 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2170 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2171 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2172 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2173 card->info.portname, 9);
2174 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2175 qeth_ulp_enable_cb, NULL);
2176 return rc;
2177
2178 }
2179
2180 static int
2181 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2182 unsigned long data)
2183 {
2184 struct qeth_cmd_buffer *iob;
2185
2186 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2187
2188 iob = (struct qeth_cmd_buffer *) data;
2189 memcpy(&card->token.ulp_connection_r,
2190 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2191 QETH_MPC_TOKEN_LENGTH);
2192 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2193 return 0;
2194 }
2195
2196 static int
2197 qeth_ulp_setup(struct qeth_card *card)
2198 {
2199 int rc;
2200 __u16 temp;
2201 struct qeth_cmd_buffer *iob;
2202 struct ccw_dev_id dev_id;
2203
2204 QETH_DBF_TEXT(setup,2,"ulpsetup");
2205
2206 iob = qeth_wait_for_buffer(&card->write);
2207 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2208
2209 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2210 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2211 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2212 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2213 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2214 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2215
2216 ccw_device_get_id(CARD_DDEV(card), &dev_id);
2217 memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2218 temp = (card->info.cula << 8) + card->info.unit_addr2;
2219 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2220 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2221 qeth_ulp_setup_cb, NULL);
2222 return rc;
2223 }
2224
2225 static inline int
2226 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2227 unsigned int siga_error, const char *dbftext)
2228 {
2229 if (qdio_error || siga_error) {
2230 QETH_DBF_TEXT(trace, 2, dbftext);
2231 QETH_DBF_TEXT(qerr, 2, dbftext);
2232 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2233 buf->element[15].flags & 0xff);
2234 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2235 buf->element[14].flags & 0xff);
2236 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2237 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2238 return 1;
2239 }
2240 return 0;
2241 }
2242
2243 static struct sk_buff *
2244 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2245 {
2246 struct sk_buff* skb;
2247 int add_len;
2248
2249 add_len = 0;
2250 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2251 add_len = sizeof(struct qeth_hdr);
2252 #ifdef CONFIG_QETH_VLAN
2253 else
2254 add_len = VLAN_HLEN;
2255 #endif
2256 skb = dev_alloc_skb(length + add_len);
2257 if (skb && add_len)
2258 skb_reserve(skb, add_len);
2259 return skb;
2260 }
2261
2262 static inline int
2263 qeth_create_skb_frag(struct qdio_buffer_element *element,
2264 struct sk_buff **pskb,
2265 int offset, int *pfrag, int data_len)
2266 {
2267 struct page *page = virt_to_page(element->addr);
2268 if (*pfrag == 0) {
2269 /* the upper protocol layers assume that there is data in the
2270 * skb itself. Copy a small amount (64 bytes) to make them
2271 * happy. */
2272 *pskb = dev_alloc_skb(64 + QETH_FAKE_LL_LEN_ETH);
2273 if (!(*pskb))
2274 return -ENOMEM;
2275 skb_reserve(*pskb, QETH_FAKE_LL_LEN_ETH);
2276 if (data_len <= 64) {
2277 memcpy(skb_put(*pskb, data_len), element->addr + offset,
2278 data_len);
2279 } else {
2280 get_page(page);
2281 memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
2282 skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
2283 data_len - 64);
2284 (*pskb)->data_len += data_len - 64;
2285 (*pskb)->len += data_len - 64;
2286 (*pskb)->truesize += data_len - 64;
2287 }
2288 } else {
2289 get_page(page);
2290 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
2291 (*pskb)->data_len += data_len;
2292 (*pskb)->len += data_len;
2293 (*pskb)->truesize += data_len;
2294 }
2295 (*pfrag)++;
2296 return 0;
2297 }
2298
2299 static inline struct qeth_buffer_pool_entry *
2300 qeth_find_free_buffer_pool_entry(struct qeth_card *card)
2301 {
2302 struct list_head *plh;
2303 struct qeth_buffer_pool_entry *entry;
2304 int i, free;
2305 struct page *page;
2306
2307 if (list_empty(&card->qdio.in_buf_pool.entry_list))
2308 return NULL;
2309
2310 list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2311 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2312 free = 1;
2313 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2314 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2315 free = 0;
2316 break;
2317 }
2318 }
2319 if (free) {
2320 list_del_init(&entry->list);
2321 return entry;
2322 }
2323 }
2324
2325 /* no free buffer in pool so take first one and swap pages */
2326 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2327 struct qeth_buffer_pool_entry, list);
2328 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2329 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2330 page = alloc_page(GFP_ATOMIC|GFP_DMA);
2331 if (!page) {
2332 return NULL;
2333 } else {
2334 free_page((unsigned long)entry->elements[i]);
2335 entry->elements[i] = page_address(page);
2336 if (card->options.performance_stats)
2337 card->perf_stats.sg_alloc_page_rx++;
2338 }
2339 }
2340 }
2341 list_del_init(&entry->list);
2342 return entry;
2343 }
2344
2345 static struct sk_buff *
2346 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2347 struct qdio_buffer_element **__element, int *__offset,
2348 struct qeth_hdr **hdr)
2349 {
2350 struct qdio_buffer_element *element = *__element;
2351 int offset = *__offset;
2352 struct sk_buff *skb = NULL;
2353 int skb_len;
2354 void *data_ptr;
2355 int data_len;
2356 int use_rx_sg = 0;
2357 int frag = 0;
2358
2359 QETH_DBF_TEXT(trace,6,"nextskb");
2360 /* qeth_hdr must not cross element boundaries */
2361 if (element->length < offset + sizeof(struct qeth_hdr)){
2362 if (qeth_is_last_sbale(element))
2363 return NULL;
2364 element++;
2365 offset = 0;
2366 if (element->length < sizeof(struct qeth_hdr))
2367 return NULL;
2368 }
2369 *hdr = element->addr + offset;
2370
2371 offset += sizeof(struct qeth_hdr);
2372 if (card->options.layer2)
2373 if (card->info.type == QETH_CARD_TYPE_OSN)
2374 skb_len = (*hdr)->hdr.osn.pdu_length;
2375 else
2376 skb_len = (*hdr)->hdr.l2.pkt_length;
2377 else
2378 skb_len = (*hdr)->hdr.l3.length;
2379
2380 if (!skb_len)
2381 return NULL;
2382 if ((skb_len >= card->options.rx_sg_cb) &&
2383 (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
2384 (!atomic_read(&card->force_alloc_skb))) {
2385 use_rx_sg = 1;
2386 } else {
2387 if (card->options.fake_ll) {
2388 if (card->dev->type == ARPHRD_IEEE802_TR) {
2389 if (!(skb = qeth_get_skb(skb_len +
2390 QETH_FAKE_LL_LEN_TR, *hdr)))
2391 goto no_mem;
2392 skb_reserve(skb, QETH_FAKE_LL_LEN_TR);
2393 } else {
2394 if (!(skb = qeth_get_skb(skb_len +
2395 QETH_FAKE_LL_LEN_ETH, *hdr)))
2396 goto no_mem;
2397 skb_reserve(skb, QETH_FAKE_LL_LEN_ETH);
2398 }
2399 } else {
2400 skb = qeth_get_skb(skb_len, *hdr);
2401 if (!skb)
2402 goto no_mem;
2403 }
2404 }
2405
2406 data_ptr = element->addr + offset;
2407 while (skb_len) {
2408 data_len = min(skb_len, (int)(element->length - offset));
2409 if (data_len) {
2410 if (use_rx_sg) {
2411 if (qeth_create_skb_frag(element, &skb, offset,
2412 &frag, data_len))
2413 goto no_mem;
2414 } else {
2415 memcpy(skb_put(skb, data_len), data_ptr,
2416 data_len);
2417 }
2418 }
2419 skb_len -= data_len;
2420 if (skb_len){
2421 if (qeth_is_last_sbale(element)){
2422 QETH_DBF_TEXT(trace,4,"unexeob");
2423 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2424 QETH_DBF_TEXT(qerr,2,"unexeob");
2425 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2426 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2427 dev_kfree_skb_any(skb);
2428 card->stats.rx_errors++;
2429 return NULL;
2430 }
2431 element++;
2432 offset = 0;
2433 data_ptr = element->addr;
2434 } else {
2435 offset += data_len;
2436 }
2437 }
2438 *__element = element;
2439 *__offset = offset;
2440 if (use_rx_sg && card->options.performance_stats) {
2441 card->perf_stats.sg_skbs_rx++;
2442 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
2443 }
2444 return skb;
2445 no_mem:
2446 if (net_ratelimit()){
2447 PRINT_WARN("No memory for packet received on %s.\n",
2448 QETH_CARD_IFNAME(card));
2449 QETH_DBF_TEXT(trace,2,"noskbmem");
2450 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2451 }
2452 card->stats.rx_dropped++;
2453 return NULL;
2454 }
2455
2456 static __be16
2457 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2458 {
2459 struct qeth_card *card;
2460 struct ethhdr *eth;
2461
2462 QETH_DBF_TEXT(trace,6,"typtrans");
2463
2464 card = (struct qeth_card *)dev->priv;
2465 #ifdef CONFIG_TR
2466 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2467 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2468 return tr_type_trans(skb,dev);
2469 #endif /* CONFIG_TR */
2470 skb_reset_mac_header(skb);
2471 skb_pull(skb, ETH_HLEN );
2472 eth = eth_hdr(skb);
2473
2474 if (*eth->h_dest & 1) {
2475 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2476 skb->pkt_type = PACKET_BROADCAST;
2477 else
2478 skb->pkt_type = PACKET_MULTICAST;
2479 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2480 skb->pkt_type = PACKET_OTHERHOST;
2481
2482 if (ntohs(eth->h_proto) >= 1536)
2483 return eth->h_proto;
2484 if (*(unsigned short *) (skb->data) == 0xFFFF)
2485 return htons(ETH_P_802_3);
2486 return htons(ETH_P_802_2);
2487 }
2488
2489 static void
2490 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2491 struct qeth_hdr *hdr)
2492 {
2493 struct trh_hdr *fake_hdr;
2494 struct trllc *fake_llc;
2495 struct iphdr *ip_hdr;
2496
2497 QETH_DBF_TEXT(trace,5,"skbfktr");
2498 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_TR);
2499 /* this is a fake ethernet header */
2500 fake_hdr = tr_hdr(skb);
2501
2502 /* the destination MAC address */
2503 switch (skb->pkt_type){
2504 case PACKET_MULTICAST:
2505 switch (skb->protocol){
2506 #ifdef CONFIG_QETH_IPV6
2507 case __constant_htons(ETH_P_IPV6):
2508 ndisc_mc_map((struct in6_addr *)
2509 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2510 fake_hdr->daddr, card->dev, 0);
2511 break;
2512 #endif /* CONFIG_QETH_IPV6 */
2513 case __constant_htons(ETH_P_IP):
2514 ip_hdr = (struct iphdr *)skb->data;
2515 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2516 break;
2517 default:
2518 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2519 }
2520 break;
2521 case PACKET_BROADCAST:
2522 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2523 break;
2524 default:
2525 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2526 }
2527 /* the source MAC address */
2528 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2529 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2530 else
2531 memset(fake_hdr->saddr, 0, TR_ALEN);
2532 fake_hdr->rcf=0;
2533 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2534 fake_llc->dsap = EXTENDED_SAP;
2535 fake_llc->ssap = EXTENDED_SAP;
2536 fake_llc->llc = UI_CMD;
2537 fake_llc->protid[0] = 0;
2538 fake_llc->protid[1] = 0;
2539 fake_llc->protid[2] = 0;
2540 fake_llc->ethertype = ETH_P_IP;
2541 }
2542
2543 static void
2544 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2545 struct qeth_hdr *hdr)
2546 {
2547 struct ethhdr *fake_hdr;
2548 struct iphdr *ip_hdr;
2549
2550 QETH_DBF_TEXT(trace,5,"skbfketh");
2551 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
2552 /* this is a fake ethernet header */
2553 fake_hdr = eth_hdr(skb);
2554
2555 /* the destination MAC address */
2556 switch (skb->pkt_type){
2557 case PACKET_MULTICAST:
2558 switch (skb->protocol){
2559 #ifdef CONFIG_QETH_IPV6
2560 case __constant_htons(ETH_P_IPV6):
2561 ndisc_mc_map((struct in6_addr *)
2562 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2563 fake_hdr->h_dest, card->dev, 0);
2564 break;
2565 #endif /* CONFIG_QETH_IPV6 */
2566 case __constant_htons(ETH_P_IP):
2567 ip_hdr = (struct iphdr *)skb->data;
2568 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2569 break;
2570 default:
2571 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2572 }
2573 break;
2574 case PACKET_BROADCAST:
2575 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2576 break;
2577 default:
2578 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2579 }
2580 /* the source MAC address */
2581 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2582 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2583 else
2584 memset(fake_hdr->h_source, 0, ETH_ALEN);
2585 /* the protocol */
2586 fake_hdr->h_proto = skb->protocol;
2587 }
2588
2589 static inline void
2590 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2591 struct qeth_hdr *hdr)
2592 {
2593 if (card->dev->type == ARPHRD_IEEE802_TR)
2594 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2595 else
2596 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2597 }
2598
2599 static inline void
2600 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2601 struct qeth_hdr *hdr)
2602 {
2603 skb->pkt_type = PACKET_HOST;
2604 skb->protocol = qeth_type_trans(skb, skb->dev);
2605 if (card->options.checksum_type == NO_CHECKSUMMING)
2606 skb->ip_summed = CHECKSUM_UNNECESSARY;
2607 else
2608 skb->ip_summed = CHECKSUM_NONE;
2609 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2610 }
2611
2612 static __u16
2613 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2614 struct qeth_hdr *hdr)
2615 {
2616 unsigned short vlan_id = 0;
2617 #ifdef CONFIG_QETH_IPV6
2618 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2619 skb->pkt_type = PACKET_HOST;
2620 skb->protocol = qeth_type_trans(skb, card->dev);
2621 return 0;
2622 }
2623 #endif /* CONFIG_QETH_IPV6 */
2624 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2625 ETH_P_IP);
2626 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2627 case QETH_CAST_UNICAST:
2628 skb->pkt_type = PACKET_HOST;
2629 break;
2630 case QETH_CAST_MULTICAST:
2631 skb->pkt_type = PACKET_MULTICAST;
2632 card->stats.multicast++;
2633 break;
2634 case QETH_CAST_BROADCAST:
2635 skb->pkt_type = PACKET_BROADCAST;
2636 card->stats.multicast++;
2637 break;
2638 case QETH_CAST_ANYCAST:
2639 case QETH_CAST_NOCAST:
2640 default:
2641 skb->pkt_type = PACKET_HOST;
2642 }
2643
2644 if (hdr->hdr.l3.ext_flags &
2645 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2646 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2647 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2648 }
2649
2650 if (card->options.fake_ll)
2651 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2652 else
2653 skb_reset_mac_header(skb);
2654 skb->ip_summed = card->options.checksum_type;
2655 if (card->options.checksum_type == HW_CHECKSUMMING){
2656 if ( (hdr->hdr.l3.ext_flags &
2657 (QETH_HDR_EXT_CSUM_HDR_REQ |
2658 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2659 (QETH_HDR_EXT_CSUM_HDR_REQ |
2660 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2661 skb->ip_summed = CHECKSUM_UNNECESSARY;
2662 else
2663 skb->ip_summed = SW_CHECKSUMMING;
2664 }
2665 return vlan_id;
2666 }
2667
2668 static void
2669 qeth_process_inbound_buffer(struct qeth_card *card,
2670 struct qeth_qdio_buffer *buf, int index)
2671 {
2672 struct qdio_buffer_element *element;
2673 struct sk_buff *skb;
2674 struct qeth_hdr *hdr;
2675 int offset;
2676 int rxrc;
2677 __u16 vlan_tag = 0;
2678
2679 /* get first element of current buffer */
2680 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2681 offset = 0;
2682 if (card->options.performance_stats)
2683 card->perf_stats.bufs_rec++;
2684 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2685 &offset, &hdr))) {
2686 skb->dev = card->dev;
2687 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2688 qeth_layer2_rebuild_skb(card, skb, hdr);
2689 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2690 vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2691 else { /*in case of OSN*/
2692 skb_push(skb, sizeof(struct qeth_hdr));
2693 skb_copy_to_linear_data(skb, hdr,
2694 sizeof(struct qeth_hdr));
2695 }
2696 /* is device UP ? */
2697 if (!(card->dev->flags & IFF_UP)){
2698 dev_kfree_skb_any(skb);
2699 continue;
2700 }
2701 if (card->info.type == QETH_CARD_TYPE_OSN)
2702 rxrc = card->osn_info.data_cb(skb);
2703 else
2704 #ifdef CONFIG_QETH_VLAN
2705 if (vlan_tag)
2706 if (card->vlangrp)
2707 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2708 else {
2709 dev_kfree_skb_any(skb);
2710 continue;
2711 }
2712 else
2713 #endif
2714 rxrc = netif_rx(skb);
2715 card->dev->last_rx = jiffies;
2716 card->stats.rx_packets++;
2717 card->stats.rx_bytes += skb->len;
2718 }
2719 }
2720
2721 static int
2722 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2723 {
2724 struct qeth_buffer_pool_entry *pool_entry;
2725 int i;
2726
2727 pool_entry = qeth_find_free_buffer_pool_entry(card);
2728 if (!pool_entry)
2729 return 1;
2730 /*
2731 * since the buffer is accessed only from the input_tasklet
2732 * there shouldn't be a need to synchronize; also, since we use
2733 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2734 * buffers
2735 */
2736 BUG_ON(!pool_entry);
2737
2738 buf->pool_entry = pool_entry;
2739 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2740 buf->buffer->element[i].length = PAGE_SIZE;
2741 buf->buffer->element[i].addr = pool_entry->elements[i];
2742 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2743 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2744 else
2745 buf->buffer->element[i].flags = 0;
2746 }
2747 buf->state = QETH_QDIO_BUF_EMPTY;
2748 return 0;
2749 }
2750
2751 static void
2752 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2753 struct qeth_qdio_out_buffer *buf)
2754 {
2755 int i;
2756 struct sk_buff *skb;
2757
2758 /* is PCI flag set on buffer? */
2759 if (buf->buffer->element[0].flags & 0x40)
2760 atomic_dec(&queue->set_pci_flags_count);
2761
2762 while ((skb = skb_dequeue(&buf->skb_list))){
2763 atomic_dec(&skb->users);
2764 dev_kfree_skb_any(skb);
2765 }
2766 qeth_eddp_buf_release_contexts(buf);
2767 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2768 buf->buffer->element[i].length = 0;
2769 buf->buffer->element[i].addr = NULL;
2770 buf->buffer->element[i].flags = 0;
2771 }
2772 buf->next_element_to_fill = 0;
2773 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2774 }
2775
2776 static void
2777 qeth_queue_input_buffer(struct qeth_card *card, int index)
2778 {
2779 struct qeth_qdio_q *queue = card->qdio.in_q;
2780 int count;
2781 int i;
2782 int rc;
2783 int newcount = 0;
2784
2785 QETH_DBF_TEXT(trace,6,"queinbuf");
2786 count = (index < queue->next_buf_to_init)?
2787 card->qdio.in_buf_pool.buf_count -
2788 (queue->next_buf_to_init - index) :
2789 card->qdio.in_buf_pool.buf_count -
2790 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2791 /* only requeue at a certain threshold to avoid SIGAs */
2792 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2793 for (i = queue->next_buf_to_init;
2794 i < queue->next_buf_to_init + count; ++i) {
2795 if (qeth_init_input_buffer(card,
2796 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2797 break;
2798 } else {
2799 newcount++;
2800 }
2801 }
2802
2803 if (newcount < count) {
2804 /* we are in memory shortage so we switch back to
2805 traditional skb allocation and drop packages */
2806 if (atomic_cmpxchg(&card->force_alloc_skb, 0, 1))
2807 printk(KERN_WARNING
2808 "qeth: switch to alloc skb\n");
2809 count = newcount;
2810 } else {
2811 if (atomic_cmpxchg(&card->force_alloc_skb, 1, 0))
2812 printk(KERN_WARNING "qeth: switch to sg\n");
2813 }
2814
2815 /*
2816 * according to old code it should be avoided to requeue all
2817 * 128 buffers in order to benefit from PCI avoidance.
2818 * this function keeps at least one buffer (the buffer at
2819 * 'index') un-requeued -> this buffer is the first buffer that
2820 * will be requeued the next time
2821 */
2822 if (card->options.performance_stats) {
2823 card->perf_stats.inbound_do_qdio_cnt++;
2824 card->perf_stats.inbound_do_qdio_start_time =
2825 qeth_get_micros();
2826 }
2827 rc = do_QDIO(CARD_DDEV(card),
2828 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2829 0, queue->next_buf_to_init, count, NULL);
2830 if (card->options.performance_stats)
2831 card->perf_stats.inbound_do_qdio_time +=
2832 qeth_get_micros() -
2833 card->perf_stats.inbound_do_qdio_start_time;
2834 if (rc){
2835 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2836 "return %i (device %s).\n",
2837 rc, CARD_DDEV_ID(card));
2838 QETH_DBF_TEXT(trace,2,"qinberr");
2839 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2840 }
2841 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2842 QDIO_MAX_BUFFERS_PER_Q;
2843 }
2844 }
2845
2846 static inline void
2847 qeth_put_buffer_pool_entry(struct qeth_card *card,
2848 struct qeth_buffer_pool_entry *entry)
2849 {
2850 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2851 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2852 }
2853
2854 static void
2855 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2856 unsigned int qdio_err, unsigned int siga_err,
2857 unsigned int queue, int first_element, int count,
2858 unsigned long card_ptr)
2859 {
2860 struct net_device *net_dev;
2861 struct qeth_card *card;
2862 struct qeth_qdio_buffer *buffer;
2863 int index;
2864 int i;
2865
2866 QETH_DBF_TEXT(trace, 6, "qdinput");
2867 card = (struct qeth_card *) card_ptr;
2868 net_dev = card->dev;
2869 if (card->options.performance_stats) {
2870 card->perf_stats.inbound_cnt++;
2871 card->perf_stats.inbound_start_time = qeth_get_micros();
2872 }
2873 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2874 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2875 QETH_DBF_TEXT(trace, 1,"qdinchk");
2876 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2877 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2878 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2879 qeth_schedule_recovery(card);
2880 return;
2881 }
2882 }
2883 for (i = first_element; i < (first_element + count); ++i) {
2884 index = i % QDIO_MAX_BUFFERS_PER_Q;
2885 buffer = &card->qdio.in_q->bufs[index];
2886 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2887 qeth_check_qdio_errors(buffer->buffer,
2888 qdio_err, siga_err,"qinerr")))
2889 qeth_process_inbound_buffer(card, buffer, index);
2890 /* clear buffer and give back to hardware */
2891 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2892 qeth_queue_input_buffer(card, index);
2893 }
2894 if (card->options.performance_stats)
2895 card->perf_stats.inbound_time += qeth_get_micros() -
2896 card->perf_stats.inbound_start_time;
2897 }
2898
2899 static int
2900 qeth_handle_send_error(struct qeth_card *card,
2901 struct qeth_qdio_out_buffer *buffer,
2902 unsigned int qdio_err, unsigned int siga_err)
2903 {
2904 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2905 int cc = siga_err & 3;
2906
2907 QETH_DBF_TEXT(trace, 6, "hdsnderr");
2908 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2909 switch (cc) {
2910 case 0:
2911 if (qdio_err){
2912 QETH_DBF_TEXT(trace, 1,"lnkfail");
2913 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2914 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2915 (u16)qdio_err, (u8)sbalf15);
2916 return QETH_SEND_ERROR_LINK_FAILURE;
2917 }
2918 return QETH_SEND_ERROR_NONE;
2919 case 2:
2920 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2921 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2922 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2923 return QETH_SEND_ERROR_KICK_IT;
2924 }
2925 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2926 return QETH_SEND_ERROR_RETRY;
2927 return QETH_SEND_ERROR_LINK_FAILURE;
2928 /* look at qdio_error and sbalf 15 */
2929 case 1:
2930 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2931 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2932 return QETH_SEND_ERROR_LINK_FAILURE;
2933 case 3:
2934 default:
2935 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2936 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2937 return QETH_SEND_ERROR_KICK_IT;
2938 }
2939 }
2940
2941 void
2942 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2943 int index, int count)
2944 {
2945 struct qeth_qdio_out_buffer *buf;
2946 int rc;
2947 int i;
2948 unsigned int qdio_flags;
2949
2950 QETH_DBF_TEXT(trace, 6, "flushbuf");
2951
2952 for (i = index; i < index + count; ++i) {
2953 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2954 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2955 SBAL_FLAGS_LAST_ENTRY;
2956
2957 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2958 continue;
2959
2960 if (!queue->do_pack){
2961 if ((atomic_read(&queue->used_buffers) >=
2962 (QETH_HIGH_WATERMARK_PACK -
2963 QETH_WATERMARK_PACK_FUZZ)) &&
2964 !atomic_read(&queue->set_pci_flags_count)){
2965 /* it's likely that we'll go to packing
2966 * mode soon */
2967 atomic_inc(&queue->set_pci_flags_count);
2968 buf->buffer->element[0].flags |= 0x40;
2969 }
2970 } else {
2971 if (!atomic_read(&queue->set_pci_flags_count)){
2972 /*
2973 * there's no outstanding PCI any more, so we
2974 * have to request a PCI to be sure that the PCI
2975 * will wake at some time in the future then we
2976 * can flush packed buffers that might still be
2977 * hanging around, which can happen if no
2978 * further send was requested by the stack
2979 */
2980 atomic_inc(&queue->set_pci_flags_count);
2981 buf->buffer->element[0].flags |= 0x40;
2982 }
2983 }
2984 }
2985
2986 queue->card->dev->trans_start = jiffies;
2987 if (queue->card->options.performance_stats) {
2988 queue->card->perf_stats.outbound_do_qdio_cnt++;
2989 queue->card->perf_stats.outbound_do_qdio_start_time =
2990 qeth_get_micros();
2991 }
2992 qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2993 if (under_int)
2994 qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT;
2995 if (atomic_read(&queue->set_pci_flags_count))
2996 qdio_flags |= QDIO_FLAG_PCI_OUT;
2997 rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
2998 queue->queue_no, index, count, NULL);
2999 if (queue->card->options.performance_stats)
3000 queue->card->perf_stats.outbound_do_qdio_time +=
3001 qeth_get_micros() -
3002 queue->card->perf_stats.outbound_do_qdio_start_time;
3003 if (rc){
3004 QETH_DBF_TEXT(trace, 2, "flushbuf");
3005 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
3006 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
3007 queue->card->stats.tx_errors += count;
3008 /* this must not happen under normal circumstances. if it
3009 * happens something is really wrong -> recover */
3010 qeth_schedule_recovery(queue->card);
3011 return;
3012 }
3013 atomic_add(count, &queue->used_buffers);
3014 if (queue->card->options.performance_stats)
3015 queue->card->perf_stats.bufs_sent += count;
3016 }
3017
3018 /*
3019 * Switched to packing state if the number of used buffers on a queue
3020 * reaches a certain limit.
3021 */
3022 static void
3023 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3024 {
3025 if (!queue->do_pack) {
3026 if (atomic_read(&queue->used_buffers)
3027 >= QETH_HIGH_WATERMARK_PACK){
3028 /* switch non-PACKING -> PACKING */
3029 QETH_DBF_TEXT(trace, 6, "np->pack");
3030 if (queue->card->options.performance_stats)
3031 queue->card->perf_stats.sc_dp_p++;
3032 queue->do_pack = 1;
3033 }
3034 }
3035 }
3036
3037 /*
3038 * Switches from packing to non-packing mode. If there is a packing
3039 * buffer on the queue this buffer will be prepared to be flushed.
3040 * In that case 1 is returned to inform the caller. If no buffer
3041 * has to be flushed, zero is returned.
3042 */
3043 static int
3044 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3045 {
3046 struct qeth_qdio_out_buffer *buffer;
3047 int flush_count = 0;
3048
3049 if (queue->do_pack) {
3050 if (atomic_read(&queue->used_buffers)
3051 <= QETH_LOW_WATERMARK_PACK) {
3052 /* switch PACKING -> non-PACKING */
3053 QETH_DBF_TEXT(trace, 6, "pack->np");
3054 if (queue->card->options.performance_stats)
3055 queue->card->perf_stats.sc_p_dp++;
3056 queue->do_pack = 0;
3057 /* flush packing buffers */
3058 buffer = &queue->bufs[queue->next_buf_to_fill];
3059 if ((atomic_read(&buffer->state) ==
3060 QETH_QDIO_BUF_EMPTY) &&
3061 (buffer->next_element_to_fill > 0)) {
3062 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
3063 flush_count++;
3064 queue->next_buf_to_fill =
3065 (queue->next_buf_to_fill + 1) %
3066 QDIO_MAX_BUFFERS_PER_Q;
3067 }
3068 }
3069 }
3070 return flush_count;
3071 }
3072
3073 /*
3074 * Called to flush a packing buffer if no more pci flags are on the queue.
3075 * Checks if there is a packing buffer and prepares it to be flushed.
3076 * In that case returns 1, otherwise zero.
3077 */
3078 static int
3079 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
3080 {
3081 struct qeth_qdio_out_buffer *buffer;
3082
3083 buffer = &queue->bufs[queue->next_buf_to_fill];
3084 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3085 (buffer->next_element_to_fill > 0)){
3086 /* it's a packing buffer */
3087 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3088 queue->next_buf_to_fill =
3089 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3090 return 1;
3091 }
3092 return 0;
3093 }
3094
3095 static void
3096 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3097 {
3098 int index;
3099 int flush_cnt = 0;
3100 int q_was_packing = 0;
3101
3102 /*
3103 * check if weed have to switch to non-packing mode or if
3104 * we have to get a pci flag out on the queue
3105 */
3106 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3107 !atomic_read(&queue->set_pci_flags_count)){
3108 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3109 QETH_OUT_Q_UNLOCKED) {
3110 /*
3111 * If we get in here, there was no action in
3112 * do_send_packet. So, we check if there is a
3113 * packing buffer to be flushed here.
3114 */
3115 netif_stop_queue(queue->card->dev);
3116 index = queue->next_buf_to_fill;
3117 q_was_packing = queue->do_pack;
3118 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3119 if (!flush_cnt &&
3120 !atomic_read(&queue->set_pci_flags_count))
3121 flush_cnt +=
3122 qeth_flush_buffers_on_no_pci(queue);
3123 if (queue->card->options.performance_stats &&
3124 q_was_packing)
3125 queue->card->perf_stats.bufs_sent_pack +=
3126 flush_cnt;
3127 if (flush_cnt)
3128 qeth_flush_buffers(queue, 1, index, flush_cnt);
3129 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3130 }
3131 }
3132 }
3133
3134 static void
3135 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3136 unsigned int qdio_error, unsigned int siga_error,
3137 unsigned int __queue, int first_element, int count,
3138 unsigned long card_ptr)
3139 {
3140 struct qeth_card *card = (struct qeth_card *) card_ptr;
3141 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3142 struct qeth_qdio_out_buffer *buffer;
3143 int i;
3144
3145 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3146 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3147 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3148 QETH_DBF_TEXT(trace, 2, "achkcond");
3149 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3150 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3151 netif_stop_queue(card->dev);
3152 qeth_schedule_recovery(card);
3153 return;
3154 }
3155 }
3156 if (card->options.performance_stats) {
3157 card->perf_stats.outbound_handler_cnt++;
3158 card->perf_stats.outbound_handler_start_time =
3159 qeth_get_micros();
3160 }
3161 for(i = first_element; i < (first_element + count); ++i){
3162 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3163 /*we only handle the KICK_IT error by doing a recovery */
3164 if (qeth_handle_send_error(card, buffer,
3165 qdio_error, siga_error)
3166 == QETH_SEND_ERROR_KICK_IT){
3167 netif_stop_queue(card->dev);
3168 qeth_schedule_recovery(card);
3169 return;
3170 }
3171 qeth_clear_output_buffer(queue, buffer);
3172 }
3173 atomic_sub(count, &queue->used_buffers);
3174 /* check if we need to do something on this outbound queue */
3175 if (card->info.type != QETH_CARD_TYPE_IQD)
3176 qeth_check_outbound_queue(queue);
3177
3178 netif_wake_queue(queue->card->dev);
3179 if (card->options.performance_stats)
3180 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3181 card->perf_stats.outbound_handler_start_time;
3182 }
3183
3184 static void
3185 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3186 {
3187
3188 param_field[0] = _ascebc['P'];
3189 param_field[1] = _ascebc['C'];
3190 param_field[2] = _ascebc['I'];
3191 param_field[3] = _ascebc['T'];
3192 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3193 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3194 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3195 }
3196
3197 static void
3198 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3199 {
3200 param_field[16] = _ascebc['B'];
3201 param_field[17] = _ascebc['L'];
3202 param_field[18] = _ascebc['K'];
3203 param_field[19] = _ascebc['T'];
3204 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3205 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3206 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3207 }
3208
3209 static void
3210 qeth_initialize_working_pool_list(struct qeth_card *card)
3211 {
3212 struct qeth_buffer_pool_entry *entry;
3213
3214 QETH_DBF_TEXT(trace,5,"inwrklst");
3215
3216 list_for_each_entry(entry,
3217 &card->qdio.init_pool.entry_list, init_list) {
3218 qeth_put_buffer_pool_entry(card,entry);
3219 }
3220 }
3221
3222 static void
3223 qeth_clear_working_pool_list(struct qeth_card *card)
3224 {
3225 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3226
3227 QETH_DBF_TEXT(trace,5,"clwrklst");
3228 list_for_each_entry_safe(pool_entry, tmp,
3229 &card->qdio.in_buf_pool.entry_list, list){
3230 list_del(&pool_entry->list);
3231 }
3232 }
3233
3234 static void
3235 qeth_free_buffer_pool(struct qeth_card *card)
3236 {
3237 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3238 int i=0;
3239 QETH_DBF_TEXT(trace,5,"freepool");
3240 list_for_each_entry_safe(pool_entry, tmp,
3241 &card->qdio.init_pool.entry_list, init_list){
3242 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3243 free_page((unsigned long)pool_entry->elements[i]);
3244 list_del(&pool_entry->init_list);
3245 kfree(pool_entry);
3246 }
3247 }
3248
3249 static int
3250 qeth_alloc_buffer_pool(struct qeth_card *card)
3251 {
3252 struct qeth_buffer_pool_entry *pool_entry;
3253 void *ptr;
3254 int i, j;
3255
3256 QETH_DBF_TEXT(trace,5,"alocpool");
3257 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3258 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3259 if (!pool_entry){
3260 qeth_free_buffer_pool(card);
3261 return -ENOMEM;
3262 }
3263 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3264 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3265 if (!ptr) {
3266 while (j > 0)
3267 free_page((unsigned long)
3268 pool_entry->elements[--j]);
3269 kfree(pool_entry);
3270 qeth_free_buffer_pool(card);
3271 return -ENOMEM;
3272 }
3273 pool_entry->elements[j] = ptr;
3274 }
3275 list_add(&pool_entry->init_list,
3276 &card->qdio.init_pool.entry_list);
3277 }
3278 return 0;
3279 }
3280
3281 int
3282 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3283 {
3284 QETH_DBF_TEXT(trace, 2, "realcbp");
3285
3286 if ((card->state != CARD_STATE_DOWN) &&
3287 (card->state != CARD_STATE_RECOVER))
3288 return -EPERM;
3289
3290 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3291 qeth_clear_working_pool_list(card);
3292 qeth_free_buffer_pool(card);
3293 card->qdio.in_buf_pool.buf_count = bufcnt;
3294 card->qdio.init_pool.buf_count = bufcnt;
3295 return qeth_alloc_buffer_pool(card);
3296 }
3297
3298 static int
3299 qeth_alloc_qdio_buffers(struct qeth_card *card)
3300 {
3301 int i, j;
3302
3303 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3304
3305 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3306 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3307 return 0;
3308
3309 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3310 GFP_KERNEL|GFP_DMA);
3311 if (!card->qdio.in_q)
3312 goto out_nomem;
3313 QETH_DBF_TEXT(setup, 2, "inq");
3314 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3315 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3316 /* give inbound qeth_qdio_buffers their qdio_buffers */
3317 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3318 card->qdio.in_q->bufs[i].buffer =
3319 &card->qdio.in_q->qdio_bufs[i];
3320 /* inbound buffer pool */
3321 if (qeth_alloc_buffer_pool(card))
3322 goto out_freeinq;
3323 /* outbound */
3324 card->qdio.out_qs =
3325 kmalloc(card->qdio.no_out_queues *
3326 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3327 if (!card->qdio.out_qs)
3328 goto out_freepool;
3329 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3330 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3331 GFP_KERNEL|GFP_DMA);
3332 if (!card->qdio.out_qs[i])
3333 goto out_freeoutq;
3334 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3335 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3336 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3337 card->qdio.out_qs[i]->queue_no = i;
3338 /* give outbound qeth_qdio_buffers their qdio_buffers */
3339 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3340 card->qdio.out_qs[i]->bufs[j].buffer =
3341 &card->qdio.out_qs[i]->qdio_bufs[j];
3342 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3343 skb_list);
3344 lockdep_set_class(
3345 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3346 &qdio_out_skb_queue_key);
3347 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3348 }
3349 }
3350 return 0;
3351
3352 out_freeoutq:
3353 while (i > 0)
3354 kfree(card->qdio.out_qs[--i]);
3355 kfree(card->qdio.out_qs);
3356 out_freepool:
3357 qeth_free_buffer_pool(card);
3358 out_freeinq:
3359 kfree(card->qdio.in_q);
3360 out_nomem:
3361 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3362 return -ENOMEM;
3363 }
3364
3365 static void
3366 qeth_free_qdio_buffers(struct qeth_card *card)
3367 {
3368 int i, j;
3369
3370 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3371 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3372 QETH_QDIO_UNINITIALIZED)
3373 return;
3374 kfree(card->qdio.in_q);
3375 /* inbound buffer pool */
3376 qeth_free_buffer_pool(card);
3377 /* free outbound qdio_qs */
3378 for (i = 0; i < card->qdio.no_out_queues; ++i){
3379 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3380 qeth_clear_output_buffer(card->qdio.out_qs[i],
3381 &card->qdio.out_qs[i]->bufs[j]);
3382 kfree(card->qdio.out_qs[i]);
3383 }
3384 kfree(card->qdio.out_qs);
3385 }
3386
3387 static void
3388 qeth_clear_qdio_buffers(struct qeth_card *card)
3389 {
3390 int i, j;
3391
3392 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3393 /* clear outbound buffers to free skbs */
3394 for (i = 0; i < card->qdio.no_out_queues; ++i)
3395 if (card->qdio.out_qs[i]){
3396 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3397 qeth_clear_output_buffer(card->qdio.out_qs[i],
3398 &card->qdio.out_qs[i]->bufs[j]);
3399 }
3400 }
3401
3402 static void
3403 qeth_init_qdio_info(struct qeth_card *card)
3404 {
3405 QETH_DBF_TEXT(setup, 4, "intqdinf");
3406 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3407 /* inbound */
3408 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3409 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3410 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3411 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3412 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3413 }
3414
3415 static int
3416 qeth_init_qdio_queues(struct qeth_card *card)
3417 {
3418 int i, j;
3419 int rc;
3420
3421 QETH_DBF_TEXT(setup, 2, "initqdqs");
3422
3423 /* inbound queue */
3424 memset(card->qdio.in_q->qdio_bufs, 0,
3425 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3426 qeth_initialize_working_pool_list(card);
3427 /*give only as many buffers to hardware as we have buffer pool entries*/
3428 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3429 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3430 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3431 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3432 card->qdio.in_buf_pool.buf_count - 1, NULL);
3433 if (rc) {
3434 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3435 return rc;
3436 }
3437 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3438 if (rc) {
3439 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3440 return rc;
3441 }
3442 /* outbound queue */
3443 for (i = 0; i < card->qdio.no_out_queues; ++i){
3444 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3445 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3446 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3447 qeth_clear_output_buffer(card->qdio.out_qs[i],
3448 &card->qdio.out_qs[i]->bufs[j]);
3449 }
3450 card->qdio.out_qs[i]->card = card;
3451 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3452 card->qdio.out_qs[i]->do_pack = 0;
3453 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3454 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3455 atomic_set(&card->qdio.out_qs[i]->state,
3456 QETH_OUT_Q_UNLOCKED);
3457 }
3458 return 0;
3459 }
3460
3461 static int
3462 qeth_qdio_establish(struct qeth_card *card)
3463 {
3464 struct qdio_initialize init_data;
3465 char *qib_param_field;
3466 struct qdio_buffer **in_sbal_ptrs;
3467 struct qdio_buffer **out_sbal_ptrs;
3468 int i, j, k;
3469 int rc = 0;
3470
3471 QETH_DBF_TEXT(setup, 2, "qdioest");
3472
3473 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3474 GFP_KERNEL);
3475 if (!qib_param_field)
3476 return -ENOMEM;
3477
3478 qeth_create_qib_param_field(card, qib_param_field);
3479 qeth_create_qib_param_field_blkt(card, qib_param_field);
3480
3481 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3482 GFP_KERNEL);
3483 if (!in_sbal_ptrs) {
3484 kfree(qib_param_field);
3485 return -ENOMEM;
3486 }
3487 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3488 in_sbal_ptrs[i] = (struct qdio_buffer *)
3489 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3490
3491 out_sbal_ptrs =
3492 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3493 sizeof(void *), GFP_KERNEL);
3494 if (!out_sbal_ptrs) {
3495 kfree(in_sbal_ptrs);
3496 kfree(qib_param_field);
3497 return -ENOMEM;
3498 }
3499 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3500 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3501 out_sbal_ptrs[k] = (struct qdio_buffer *)
3502 virt_to_phys(card->qdio.out_qs[i]->
3503 bufs[j].buffer);
3504 }
3505
3506 memset(&init_data, 0, sizeof(struct qdio_initialize));
3507 init_data.cdev = CARD_DDEV(card);
3508 init_data.q_format = qeth_get_qdio_q_format(card);
3509 init_data.qib_param_field_format = 0;
3510 init_data.qib_param_field = qib_param_field;
3511 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3512 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3513 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3514 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3515 init_data.no_input_qs = 1;
3516 init_data.no_output_qs = card->qdio.no_out_queues;
3517 init_data.input_handler = (qdio_handler_t *)
3518 qeth_qdio_input_handler;
3519 init_data.output_handler = (qdio_handler_t *)
3520 qeth_qdio_output_handler;
3521 init_data.int_parm = (unsigned long) card;
3522 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3523 QDIO_OUTBOUND_0COPY_SBALS |
3524 QDIO_USE_OUTBOUND_PCIS;
3525 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3526 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3527
3528 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3529 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3530 if ((rc = qdio_initialize(&init_data)))
3531 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3532
3533 kfree(out_sbal_ptrs);
3534 kfree(in_sbal_ptrs);
3535 kfree(qib_param_field);
3536 return rc;
3537 }
3538
3539 static int
3540 qeth_qdio_activate(struct qeth_card *card)
3541 {
3542 QETH_DBF_TEXT(setup,3,"qdioact");
3543 return qdio_activate(CARD_DDEV(card), 0);
3544 }
3545
3546 static int
3547 qeth_clear_channel(struct qeth_channel *channel)
3548 {
3549 unsigned long flags;
3550 struct qeth_card *card;
3551 int rc;
3552
3553 QETH_DBF_TEXT(trace,3,"clearch");
3554 card = CARD_FROM_CDEV(channel->ccwdev);
3555 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3556 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3557 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3558
3559 if (rc)
3560 return rc;
3561 rc = wait_event_interruptible_timeout(card->wait_q,
3562 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3563 if (rc == -ERESTARTSYS)
3564 return rc;
3565 if (channel->state != CH_STATE_STOPPED)
3566 return -ETIME;
3567 channel->state = CH_STATE_DOWN;
3568 return 0;
3569 }
3570
3571 static int
3572 qeth_halt_channel(struct qeth_channel *channel)
3573 {
3574 unsigned long flags;
3575 struct qeth_card *card;
3576 int rc;
3577
3578 QETH_DBF_TEXT(trace,3,"haltch");
3579 card = CARD_FROM_CDEV(channel->ccwdev);
3580 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3581 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3582 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3583
3584 if (rc)
3585 return rc;
3586 rc = wait_event_interruptible_timeout(card->wait_q,
3587 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3588 if (rc == -ERESTARTSYS)
3589 return rc;
3590 if (channel->state != CH_STATE_HALTED)
3591 return -ETIME;
3592 return 0;
3593 }
3594
3595 static int
3596 qeth_halt_channels(struct qeth_card *card)
3597 {
3598 int rc1 = 0, rc2=0, rc3 = 0;
3599
3600 QETH_DBF_TEXT(trace,3,"haltchs");
3601 rc1 = qeth_halt_channel(&card->read);
3602 rc2 = qeth_halt_channel(&card->write);
3603 rc3 = qeth_halt_channel(&card->data);
3604 if (rc1)
3605 return rc1;
3606 if (rc2)
3607 return rc2;
3608 return rc3;
3609 }
3610 static int
3611 qeth_clear_channels(struct qeth_card *card)
3612 {
3613 int rc1 = 0, rc2=0, rc3 = 0;
3614
3615 QETH_DBF_TEXT(trace,3,"clearchs");
3616 rc1 = qeth_clear_channel(&card->read);
3617 rc2 = qeth_clear_channel(&card->write);
3618 rc3 = qeth_clear_channel(&card->data);
3619 if (rc1)
3620 return rc1;
3621 if (rc2)
3622 return rc2;
3623 return rc3;
3624 }
3625
3626 static int
3627 qeth_clear_halt_card(struct qeth_card *card, int halt)
3628 {
3629 int rc = 0;
3630
3631 QETH_DBF_TEXT(trace,3,"clhacrd");
3632 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3633
3634 if (halt)
3635 rc = qeth_halt_channels(card);
3636 if (rc)
3637 return rc;
3638 return qeth_clear_channels(card);
3639 }
3640
3641 static int
3642 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3643 {
3644 int rc = 0;
3645
3646 QETH_DBF_TEXT(trace,3,"qdioclr");
3647 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3648 QETH_QDIO_CLEANING)) {
3649 case QETH_QDIO_ESTABLISHED:
3650 if ((rc = qdio_cleanup(CARD_DDEV(card),
3651 (card->info.type == QETH_CARD_TYPE_IQD) ?
3652 QDIO_FLAG_CLEANUP_USING_HALT :
3653 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3654 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3655 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3656 break;
3657 case QETH_QDIO_CLEANING:
3658 return rc;
3659 default:
3660 break;
3661 }
3662 if ((rc = qeth_clear_halt_card(card, use_halt)))
3663 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3664 card->state = CARD_STATE_DOWN;
3665 return rc;
3666 }
3667
3668 static int
3669 qeth_dm_act(struct qeth_card *card)
3670 {
3671 int rc;
3672 struct qeth_cmd_buffer *iob;
3673
3674 QETH_DBF_TEXT(setup,2,"dmact");
3675
3676 iob = qeth_wait_for_buffer(&card->write);
3677 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3678
3679 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3680 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3681 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3682 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3683 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3684 return rc;
3685 }
3686
3687 static int
3688 qeth_mpc_initialize(struct qeth_card *card)
3689 {
3690 int rc;
3691
3692 QETH_DBF_TEXT(setup,2,"mpcinit");
3693
3694 if ((rc = qeth_issue_next_read(card))){
3695 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3696 return rc;
3697 }
3698 if ((rc = qeth_cm_enable(card))){
3699 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3700 goto out_qdio;
3701 }
3702 if ((rc = qeth_cm_setup(card))){
3703 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3704 goto out_qdio;
3705 }
3706 if ((rc = qeth_ulp_enable(card))){
3707 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3708 goto out_qdio;
3709 }
3710 if ((rc = qeth_ulp_setup(card))){
3711 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3712 goto out_qdio;
3713 }
3714 if ((rc = qeth_alloc_qdio_buffers(card))){
3715 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3716 goto out_qdio;
3717 }
3718 if ((rc = qeth_qdio_establish(card))){
3719 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3720 qeth_free_qdio_buffers(card);
3721 goto out_qdio;
3722 }
3723 if ((rc = qeth_qdio_activate(card))){
3724 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3725 goto out_qdio;
3726 }
3727 if ((rc = qeth_dm_act(card))){
3728 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3729 goto out_qdio;
3730 }
3731
3732 return 0;
3733 out_qdio:
3734 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3735 return rc;
3736 }
3737
3738 static struct net_device *
3739 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3740 {
3741 struct net_device *dev = NULL;
3742
3743 switch (type) {
3744 case QETH_CARD_TYPE_OSAE:
3745 switch (linktype) {
3746 case QETH_LINK_TYPE_LANE_TR:
3747 case QETH_LINK_TYPE_HSTR:
3748 #ifdef CONFIG_TR
3749 dev = alloc_trdev(0);
3750 #endif /* CONFIG_TR */
3751 break;
3752 default:
3753 dev = alloc_etherdev(0);
3754 }
3755 break;
3756 case QETH_CARD_TYPE_IQD:
3757 dev = alloc_netdev(0, "hsi%d", ether_setup);
3758 break;
3759 case QETH_CARD_TYPE_OSN:
3760 dev = alloc_netdev(0, "osn%d", ether_setup);
3761 break;
3762 default:
3763 dev = alloc_etherdev(0);
3764 }
3765 return dev;
3766 }
3767
3768 /*hard_header fake function; used in case fake_ll is set */
3769 static int
3770 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3771 unsigned short type, void *daddr, void *saddr,
3772 unsigned len)
3773 {
3774 if(dev->type == ARPHRD_IEEE802_TR){
3775 struct trh_hdr *hdr;
3776 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3777 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3778 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3779 return QETH_FAKE_LL_LEN_TR;
3780
3781 } else {
3782 struct ethhdr *hdr;
3783 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3784 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3785 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3786 if (type != ETH_P_802_3)
3787 hdr->h_proto = htons(type);
3788 else
3789 hdr->h_proto = htons(len);
3790 return QETH_FAKE_LL_LEN_ETH;
3791
3792 }
3793 }
3794
3795 static int
3796 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3797
3798 static int
3799 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3800 {
3801 int rc;
3802 struct qeth_card *card;
3803
3804 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3805 card = (struct qeth_card *)dev->priv;
3806 if (skb==NULL) {
3807 card->stats.tx_dropped++;
3808 card->stats.tx_errors++;
3809 /* return OK; otherwise ksoftirqd goes to 100% */
3810 return NETDEV_TX_OK;
3811 }
3812 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3813 card->stats.tx_dropped++;
3814 card->stats.tx_errors++;
3815 card->stats.tx_carrier_errors++;
3816 dev_kfree_skb_any(skb);
3817 /* return OK; otherwise ksoftirqd goes to 100% */
3818 return NETDEV_TX_OK;
3819 }
3820 if (card->options.performance_stats) {
3821 card->perf_stats.outbound_cnt++;
3822 card->perf_stats.outbound_start_time = qeth_get_micros();
3823 }
3824 netif_stop_queue(dev);
3825 if ((rc = qeth_send_packet(card, skb))) {
3826 if (rc == -EBUSY) {
3827 return NETDEV_TX_BUSY;
3828 } else {
3829 card->stats.tx_errors++;
3830 card->stats.tx_dropped++;
3831 dev_kfree_skb_any(skb);
3832 /*set to OK; otherwise ksoftirqd goes to 100% */
3833 rc = NETDEV_TX_OK;
3834 }
3835 }
3836 netif_wake_queue(dev);
3837 if (card->options.performance_stats)
3838 card->perf_stats.outbound_time += qeth_get_micros() -
3839 card->perf_stats.outbound_start_time;
3840 return rc;
3841 }
3842
3843 static int
3844 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3845 {
3846 int rc = 0;
3847 #ifdef CONFIG_QETH_VLAN
3848 struct vlan_group *vg;
3849 int i;
3850
3851 if (!(vg = card->vlangrp))
3852 return rc;
3853
3854 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3855 if (vlan_group_get_device(vg, i) == dev){
3856 rc = QETH_VLAN_CARD;
3857 break;
3858 }
3859 }
3860 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3861 return 0;
3862
3863 #endif
3864 return rc;
3865 }
3866
3867 static int
3868 qeth_verify_dev(struct net_device *dev)
3869 {
3870 struct qeth_card *card;
3871 unsigned long flags;
3872 int rc = 0;
3873
3874 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3875 list_for_each_entry(card, &qeth_card_list.list, list){
3876 if (card->dev == dev){
3877 rc = QETH_REAL_CARD;
3878 break;
3879 }
3880 rc = qeth_verify_vlan_dev(dev, card);
3881 if (rc)
3882 break;
3883 }
3884 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3885
3886 return rc;
3887 }
3888
3889 static struct qeth_card *
3890 qeth_get_card_from_dev(struct net_device *dev)
3891 {
3892 struct qeth_card *card = NULL;
3893 int rc;
3894
3895 rc = qeth_verify_dev(dev);
3896 if (rc == QETH_REAL_CARD)
3897 card = (struct qeth_card *)dev->priv;
3898 else if (rc == QETH_VLAN_CARD)
3899 card = (struct qeth_card *)
3900 VLAN_DEV_INFO(dev)->real_dev->priv;
3901
3902 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3903 return card ;
3904 }
3905
3906 static void
3907 qeth_tx_timeout(struct net_device *dev)
3908 {
3909 struct qeth_card *card;
3910
3911 card = (struct qeth_card *) dev->priv;
3912 card->stats.tx_errors++;
3913 qeth_schedule_recovery(card);
3914 }
3915
3916 static int
3917 qeth_open(struct net_device *dev)
3918 {
3919 struct qeth_card *card;
3920
3921 QETH_DBF_TEXT(trace, 4, "qethopen");
3922
3923 card = (struct qeth_card *) dev->priv;
3924
3925 if (card->state != CARD_STATE_SOFTSETUP)
3926 return -ENODEV;
3927
3928 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3929 (card->options.layer2) &&
3930 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3931 QETH_DBF_TEXT(trace,4,"nomacadr");
3932 return -EPERM;
3933 }
3934 card->data.state = CH_STATE_UP;
3935 card->state = CARD_STATE_UP;
3936 card->dev->flags |= IFF_UP;
3937 netif_start_queue(dev);
3938
3939 if (!card->lan_online && netif_carrier_ok(dev))
3940 netif_carrier_off(dev);
3941 return 0;
3942 }
3943
3944 static int
3945 qeth_stop(struct net_device *dev)
3946 {
3947 struct qeth_card *card;
3948
3949 QETH_DBF_TEXT(trace, 4, "qethstop");
3950
3951 card = (struct qeth_card *) dev->priv;
3952
3953 netif_tx_disable(dev);
3954 card->dev->flags &= ~IFF_UP;
3955 if (card->state == CARD_STATE_UP)
3956 card->state = CARD_STATE_SOFTSETUP;
3957 return 0;
3958 }
3959
3960 static int
3961 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3962 {
3963 int cast_type = RTN_UNSPEC;
3964
3965 if (card->info.type == QETH_CARD_TYPE_OSN)
3966 return cast_type;
3967
3968 if (skb->dst && skb->dst->neighbour){
3969 cast_type = skb->dst->neighbour->type;
3970 if ((cast_type == RTN_BROADCAST) ||
3971 (cast_type == RTN_MULTICAST) ||
3972 (cast_type == RTN_ANYCAST))
3973 return cast_type;
3974 else
3975 return RTN_UNSPEC;
3976 }
3977 /* try something else */
3978 if (skb->protocol == ETH_P_IPV6)
3979 return (skb_network_header(skb)[24] == 0xff) ?
3980 RTN_MULTICAST : 0;
3981 else if (skb->protocol == ETH_P_IP)
3982 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
3983 RTN_MULTICAST : 0;
3984 /* ... */
3985 if (!memcmp(skb->data, skb->dev->broadcast, 6))
3986 return RTN_BROADCAST;
3987 else {
3988 u16 hdr_mac;
3989
3990 hdr_mac = *((u16 *)skb->data);
3991 /* tr multicast? */
3992 switch (card->info.link_type) {
3993 case QETH_LINK_TYPE_HSTR:
3994 case QETH_LINK_TYPE_LANE_TR:
3995 if ((hdr_mac == QETH_TR_MAC_NC) ||
3996 (hdr_mac == QETH_TR_MAC_C))
3997 return RTN_MULTICAST;
3998 break;
3999 /* eth or so multicast? */
4000 default:
4001 if ((hdr_mac == QETH_ETH_MAC_V4) ||
4002 (hdr_mac == QETH_ETH_MAC_V6))
4003 return RTN_MULTICAST;
4004 }
4005 }
4006 return cast_type;
4007 }
4008
4009 static int
4010 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
4011 int ipv, int cast_type)
4012 {
4013 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
4014 return card->qdio.default_out_queue;
4015 switch (card->qdio.no_out_queues) {
4016 case 4:
4017 if (cast_type && card->info.is_multicast_different)
4018 return card->info.is_multicast_different &
4019 (card->qdio.no_out_queues - 1);
4020 if (card->qdio.do_prio_queueing && (ipv == 4)) {
4021 const u8 tos = ip_hdr(skb)->tos;
4022
4023 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
4024 if (tos & IP_TOS_NOTIMPORTANT)
4025 return 3;
4026 if (tos & IP_TOS_HIGHRELIABILITY)
4027 return 2;
4028 if (tos & IP_TOS_HIGHTHROUGHPUT)
4029 return 1;
4030 if (tos & IP_TOS_LOWDELAY)
4031 return 0;
4032 }
4033 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
4034 return 3 - (tos >> 6);
4035 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
4036 /* TODO: IPv6!!! */
4037 }
4038 return card->qdio.default_out_queue;
4039 case 1: /* fallthrough for single-out-queue 1920-device */
4040 default:
4041 return card->qdio.default_out_queue;
4042 }
4043 }
4044
4045 static inline int
4046 qeth_get_ip_version(struct sk_buff *skb)
4047 {
4048 switch (skb->protocol) {
4049 case ETH_P_IPV6:
4050 return 6;
4051 case ETH_P_IP:
4052 return 4;
4053 default:
4054 return 0;
4055 }
4056 }
4057
4058 static struct qeth_hdr *
4059 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
4060 {
4061 #ifdef CONFIG_QETH_VLAN
4062 u16 *tag;
4063 if (card->vlangrp && vlan_tx_tag_present(skb) &&
4064 ((ipv == 6) || card->options.layer2) ) {
4065 /*
4066 * Move the mac addresses (6 bytes src, 6 bytes dest)
4067 * to the beginning of the new header. We are using three
4068 * memcpys instead of one memmove to save cycles.
4069 */
4070 skb_push(skb, VLAN_HLEN);
4071 skb_copy_to_linear_data(skb, skb->data + 4, 4);
4072 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
4073 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
4074 tag = (u16 *)(skb->data + 12);
4075 /*
4076 * first two bytes = ETH_P_8021Q (0x8100)
4077 * second two bytes = VLANID
4078 */
4079 *tag = __constant_htons(ETH_P_8021Q);
4080 *(tag + 1) = htons(vlan_tx_tag_get(skb));
4081 }
4082 #endif
4083 return ((struct qeth_hdr *)
4084 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
4085 }
4086
4087 static void
4088 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
4089 {
4090 if (orig_skb != new_skb)
4091 dev_kfree_skb_any(new_skb);
4092 }
4093
4094 static struct sk_buff *
4095 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
4096 struct qeth_hdr **hdr, int ipv)
4097 {
4098 struct sk_buff *new_skb, *new_skb2;
4099
4100 QETH_DBF_TEXT(trace, 6, "prepskb");
4101 new_skb = skb;
4102 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4103 if (!new_skb)
4104 return NULL;
4105 new_skb2 = qeth_realloc_headroom(card, new_skb,
4106 sizeof(struct qeth_hdr));
4107 if (!new_skb2) {
4108 __qeth_free_new_skb(skb, new_skb);
4109 return NULL;
4110 }
4111 if (new_skb != skb)
4112 __qeth_free_new_skb(new_skb2, new_skb);
4113 new_skb = new_skb2;
4114 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
4115 if (*hdr == NULL) {
4116 __qeth_free_new_skb(skb, new_skb);
4117 return NULL;
4118 }
4119 return new_skb;
4120 }
4121
4122 static inline u8
4123 qeth_get_qeth_hdr_flags4(int cast_type)
4124 {
4125 if (cast_type == RTN_MULTICAST)
4126 return QETH_CAST_MULTICAST;
4127 if (cast_type == RTN_BROADCAST)
4128 return QETH_CAST_BROADCAST;
4129 return QETH_CAST_UNICAST;
4130 }
4131
4132 static inline u8
4133 qeth_get_qeth_hdr_flags6(int cast_type)
4134 {
4135 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
4136 if (cast_type == RTN_MULTICAST)
4137 return ct | QETH_CAST_MULTICAST;
4138 if (cast_type == RTN_ANYCAST)
4139 return ct | QETH_CAST_ANYCAST;
4140 if (cast_type == RTN_BROADCAST)
4141 return ct | QETH_CAST_BROADCAST;
4142 return ct | QETH_CAST_UNICAST;
4143 }
4144
4145 static void
4146 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4147 struct sk_buff *skb)
4148 {
4149 __u16 hdr_mac;
4150
4151 if (!memcmp(skb->data+QETH_HEADER_SIZE,
4152 skb->dev->broadcast,6)) { /* broadcast? */
4153 *(__u32 *)hdr->hdr.l2.flags |=
4154 QETH_LAYER2_FLAG_BROADCAST << 8;
4155 return;
4156 }
4157 hdr_mac=*((__u16*)skb->data);
4158 /* tr multicast? */
4159 switch (card->info.link_type) {
4160 case QETH_LINK_TYPE_HSTR:
4161 case QETH_LINK_TYPE_LANE_TR:
4162 if ((hdr_mac == QETH_TR_MAC_NC) ||
4163 (hdr_mac == QETH_TR_MAC_C) )
4164 *(__u32 *)hdr->hdr.l2.flags |=
4165 QETH_LAYER2_FLAG_MULTICAST << 8;
4166 else
4167 *(__u32 *)hdr->hdr.l2.flags |=
4168 QETH_LAYER2_FLAG_UNICAST << 8;
4169 break;
4170 /* eth or so multicast? */
4171 default:
4172 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4173 (hdr_mac==QETH_ETH_MAC_V6) )
4174 *(__u32 *)hdr->hdr.l2.flags |=
4175 QETH_LAYER2_FLAG_MULTICAST << 8;
4176 else
4177 *(__u32 *)hdr->hdr.l2.flags |=
4178 QETH_LAYER2_FLAG_UNICAST << 8;
4179 }
4180 }
4181
4182 static void
4183 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4184 struct sk_buff *skb, int cast_type)
4185 {
4186 memset(hdr, 0, sizeof(struct qeth_hdr));
4187 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4188
4189 /* set byte 0 to "0x02" and byte 3 to casting flags */
4190 if (cast_type==RTN_MULTICAST)
4191 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4192 else if (cast_type==RTN_BROADCAST)
4193 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4194 else
4195 qeth_layer2_get_packet_type(card, hdr, skb);
4196
4197 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4198 #ifdef CONFIG_QETH_VLAN
4199 /* VSWITCH relies on the VLAN
4200 * information to be present in
4201 * the QDIO header */
4202 if ((card->vlangrp != NULL) &&
4203 vlan_tx_tag_present(skb)) {
4204 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4205 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4206 }
4207 #endif
4208 }
4209
4210 void
4211 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4212 struct sk_buff *skb, int ipv, int cast_type)
4213 {
4214 QETH_DBF_TEXT(trace, 6, "fillhdr");
4215
4216 memset(hdr, 0, sizeof(struct qeth_hdr));
4217 if (card->options.layer2) {
4218 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4219 return;
4220 }
4221 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4222 hdr->hdr.l3.ext_flags = 0;
4223 #ifdef CONFIG_QETH_VLAN
4224 /*
4225 * before we're going to overwrite this location with next hop ip.
4226 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4227 */
4228 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4229 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4230 QETH_HDR_EXT_VLAN_FRAME :
4231 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4232 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4233 }
4234 #endif /* CONFIG_QETH_VLAN */
4235 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4236 if (ipv == 4) { /* IPv4 */
4237 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4238 memset(hdr->hdr.l3.dest_addr, 0, 12);
4239 if ((skb->dst) && (skb->dst->neighbour)) {
4240 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4241 *((u32 *) skb->dst->neighbour->primary_key);
4242 } else {
4243 /* fill in destination address used in ip header */
4244 *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4245 ip_hdr(skb)->daddr;
4246 }
4247 } else if (ipv == 6) { /* IPv6 or passthru */
4248 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4249 if ((skb->dst) && (skb->dst->neighbour)) {
4250 memcpy(hdr->hdr.l3.dest_addr,
4251 skb->dst->neighbour->primary_key, 16);
4252 } else {
4253 /* fill in destination address used in ip header */
4254 memcpy(hdr->hdr.l3.dest_addr,
4255 &ipv6_hdr(skb)->daddr, 16);
4256 }
4257 } else { /* passthrough */
4258 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4259 !memcmp(skb->data + sizeof(struct qeth_hdr) +
4260 sizeof(__u16), skb->dev->broadcast, 6)) {
4261 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4262 QETH_HDR_PASSTHRU;
4263 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4264 skb->dev->broadcast, 6)) { /* broadcast? */
4265 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4266 QETH_HDR_PASSTHRU;
4267 } else {
4268 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4269 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4270 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4271 }
4272 }
4273 }
4274
4275 static void
4276 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4277 int is_tso, int *next_element_to_fill)
4278 {
4279 int length = skb->len;
4280 int length_here;
4281 int element;
4282 char *data;
4283 int first_lap ;
4284
4285 element = *next_element_to_fill;
4286 data = skb->data;
4287 first_lap = (is_tso == 0 ? 1 : 0);
4288
4289 while (length > 0) {
4290 /* length_here is the remaining amount of data in this page */
4291 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4292 if (length < length_here)
4293 length_here = length;
4294
4295 buffer->element[element].addr = data;
4296 buffer->element[element].length = length_here;
4297 length -= length_here;
4298 if (!length) {
4299 if (first_lap)
4300 buffer->element[element].flags = 0;
4301 else
4302 buffer->element[element].flags =
4303 SBAL_FLAGS_LAST_FRAG;
4304 } else {
4305 if (first_lap)
4306 buffer->element[element].flags =
4307 SBAL_FLAGS_FIRST_FRAG;
4308 else
4309 buffer->element[element].flags =
4310 SBAL_FLAGS_MIDDLE_FRAG;
4311 }
4312 data += length_here;
4313 element++;
4314 first_lap = 0;
4315 }
4316 *next_element_to_fill = element;
4317 }
4318
4319 static int
4320 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4321 struct qeth_qdio_out_buffer *buf,
4322 struct sk_buff *skb)
4323 {
4324 struct qdio_buffer *buffer;
4325 struct qeth_hdr_tso *hdr;
4326 int flush_cnt = 0, hdr_len, large_send = 0;
4327
4328 QETH_DBF_TEXT(trace, 6, "qdfillbf");
4329
4330 buffer = buf->buffer;
4331 atomic_inc(&skb->users);
4332 skb_queue_tail(&buf->skb_list, skb);
4333
4334 hdr = (struct qeth_hdr_tso *) skb->data;
4335 /*check first on TSO ....*/
4336 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4337 int element = buf->next_element_to_fill;
4338
4339 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4340 /*fill first buffer entry only with header information */
4341 buffer->element[element].addr = skb->data;
4342 buffer->element[element].length = hdr_len;
4343 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4344 buf->next_element_to_fill++;
4345 skb->data += hdr_len;
4346 skb->len -= hdr_len;
4347 large_send = 1;
4348 }
4349 if (skb_shinfo(skb)->nr_frags == 0)
4350 __qeth_fill_buffer(skb, buffer, large_send,
4351 (int *)&buf->next_element_to_fill);
4352 else
4353 __qeth_fill_buffer_frag(skb, buffer, large_send,
4354 (int *)&buf->next_element_to_fill);
4355
4356 if (!queue->do_pack) {
4357 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4358 /* set state to PRIMED -> will be flushed */
4359 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4360 flush_cnt = 1;
4361 } else {
4362 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4363 if (queue->card->options.performance_stats)
4364 queue->card->perf_stats.skbs_sent_pack++;
4365 if (buf->next_element_to_fill >=
4366 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4367 /*
4368 * packed buffer if full -> set state PRIMED
4369 * -> will be flushed
4370 */
4371 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4372 flush_cnt = 1;
4373 }
4374 }
4375 return flush_cnt;
4376 }
4377
4378 static int
4379 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4380 struct sk_buff *skb, struct qeth_hdr *hdr,
4381 int elements_needed,
4382 struct qeth_eddp_context *ctx)
4383 {
4384 struct qeth_qdio_out_buffer *buffer;
4385 int buffers_needed = 0;
4386 int flush_cnt = 0;
4387 int index;
4388
4389 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4390
4391 /* spin until we get the queue ... */
4392 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4393 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4394 /* ... now we've got the queue */
4395 index = queue->next_buf_to_fill;
4396 buffer = &queue->bufs[queue->next_buf_to_fill];
4397 /*
4398 * check if buffer is empty to make sure that we do not 'overtake'
4399 * ourselves and try to fill a buffer that is already primed
4400 */
4401 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4402 goto out;
4403 if (ctx == NULL)
4404 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4405 QDIO_MAX_BUFFERS_PER_Q;
4406 else {
4407 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4408 if (buffers_needed < 0)
4409 goto out;
4410 queue->next_buf_to_fill =
4411 (queue->next_buf_to_fill + buffers_needed) %
4412 QDIO_MAX_BUFFERS_PER_Q;
4413 }
4414 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4415 if (ctx == NULL) {
4416 qeth_fill_buffer(queue, buffer, skb);
4417 qeth_flush_buffers(queue, 0, index, 1);
4418 } else {
4419 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4420 WARN_ON(buffers_needed != flush_cnt);
4421 qeth_flush_buffers(queue, 0, index, flush_cnt);
4422 }
4423 return 0;
4424 out:
4425 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4426 return -EBUSY;
4427 }
4428
4429 static int
4430 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4431 struct sk_buff *skb, struct qeth_hdr *hdr,
4432 int elements_needed, struct qeth_eddp_context *ctx)
4433 {
4434 struct qeth_qdio_out_buffer *buffer;
4435 int start_index;
4436 int flush_count = 0;
4437 int do_pack = 0;
4438 int tmp;
4439 int rc = 0;
4440
4441 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4442
4443 /* spin until we get the queue ... */
4444 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4445 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4446 start_index = queue->next_buf_to_fill;
4447 buffer = &queue->bufs[queue->next_buf_to_fill];
4448 /*
4449 * check if buffer is empty to make sure that we do not 'overtake'
4450 * ourselves and try to fill a buffer that is already primed
4451 */
4452 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4453 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4454 return -EBUSY;
4455 }
4456 /* check if we need to switch packing state of this queue */
4457 qeth_switch_to_packing_if_needed(queue);
4458 if (queue->do_pack){
4459 do_pack = 1;
4460 if (ctx == NULL) {
4461 /* does packet fit in current buffer? */
4462 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4463 buffer->next_element_to_fill) < elements_needed){
4464 /* ... no -> set state PRIMED */
4465 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4466 flush_count++;
4467 queue->next_buf_to_fill =
4468 (queue->next_buf_to_fill + 1) %
4469 QDIO_MAX_BUFFERS_PER_Q;
4470 buffer = &queue->bufs[queue->next_buf_to_fill];
4471 /* we did a step forward, so check buffer state
4472 * again */
4473 if (atomic_read(&buffer->state) !=
4474 QETH_QDIO_BUF_EMPTY){
4475 qeth_flush_buffers(queue, 0, start_index, flush_count);
4476 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4477 return -EBUSY;
4478 }
4479 }
4480 } else {
4481 /* check if we have enough elements (including following
4482 * free buffers) to handle eddp context */
4483 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4484 printk("eddp tx_dropped 1\n");
4485 rc = -EBUSY;
4486 goto out;
4487 }
4488 }
4489 }
4490 if (ctx == NULL)
4491 tmp = qeth_fill_buffer(queue, buffer, skb);
4492 else {
4493 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4494 if (tmp < 0) {
4495 printk("eddp tx_dropped 2\n");
4496 rc = - EBUSY;
4497 goto out;
4498 }
4499 }
4500 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4501 QDIO_MAX_BUFFERS_PER_Q;
4502 flush_count += tmp;
4503 out:
4504 if (flush_count)
4505 qeth_flush_buffers(queue, 0, start_index, flush_count);
4506 else if (!atomic_read(&queue->set_pci_flags_count))
4507 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4508 /*
4509 * queue->state will go from LOCKED -> UNLOCKED or from
4510 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4511 * (switch packing state or flush buffer to get another pci flag out).
4512 * In that case we will enter this loop
4513 */
4514 while (atomic_dec_return(&queue->state)){
4515 flush_count = 0;
4516 start_index = queue->next_buf_to_fill;
4517 /* check if we can go back to non-packing state */
4518 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4519 /*
4520 * check if we need to flush a packing buffer to get a pci
4521 * flag out on the queue
4522 */
4523 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4524 flush_count += qeth_flush_buffers_on_no_pci(queue);
4525 if (flush_count)
4526 qeth_flush_buffers(queue, 0, start_index, flush_count);
4527 }
4528 /* at this point the queue is UNLOCKED again */
4529 if (queue->card->options.performance_stats && do_pack)
4530 queue->card->perf_stats.bufs_sent_pack += flush_count;
4531
4532 return rc;
4533 }
4534
4535 static int
4536 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4537 struct sk_buff *skb, int elems)
4538 {
4539 int elements_needed = 0;
4540
4541 if (skb_shinfo(skb)->nr_frags > 0)
4542 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4543 if (elements_needed == 0)
4544 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4545 + skb->len) >> PAGE_SHIFT);
4546 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4547 PRINT_ERR("Invalid size of IP packet "
4548 "(Number=%d / Length=%d). Discarded.\n",
4549 (elements_needed+elems), skb->len);
4550 return 0;
4551 }
4552 return elements_needed;
4553 }
4554
4555
4556 static int
4557 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4558 {
4559 int ipv = 0;
4560 int cast_type;
4561 struct qeth_qdio_out_q *queue;
4562 struct qeth_hdr *hdr = NULL;
4563 int elements_needed = 0;
4564 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4565 struct qeth_eddp_context *ctx = NULL;
4566 int tx_bytes = skb->len;
4567 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4568 unsigned short tso_size = skb_shinfo(skb)->gso_size;
4569 struct sk_buff *new_skb, *new_skb2;
4570 int rc;
4571
4572 QETH_DBF_TEXT(trace, 6, "sendpkt");
4573
4574 new_skb = skb;
4575 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4576 (skb->protocol == htons(ETH_P_IPV6)))
4577 return -EPERM;
4578 cast_type = qeth_get_cast_type(card, skb);
4579 if ((cast_type == RTN_BROADCAST) &&
4580 (card->info.broadcast_capable == 0))
4581 return -EPERM;
4582 queue = card->qdio.out_qs
4583 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4584 if (!card->options.layer2) {
4585 ipv = qeth_get_ip_version(skb);
4586 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4587 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4588 if (!new_skb)
4589 return -ENOMEM;
4590 if(card->dev->type == ARPHRD_IEEE802_TR){
4591 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4592 } else {
4593 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4594 }
4595 }
4596 }
4597 if (skb_is_gso(skb))
4598 large_send = card->options.large_send;
4599 /* check on OSN device*/
4600 if (card->info.type == QETH_CARD_TYPE_OSN)
4601 hdr = (struct qeth_hdr *)new_skb->data;
4602 /*are we able to do TSO ? */
4603 if ((large_send == QETH_LARGE_SEND_TSO) &&
4604 (cast_type == RTN_UNSPEC)) {
4605 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4606 if (rc) {
4607 __qeth_free_new_skb(skb, new_skb);
4608 return rc;
4609 }
4610 elements_needed++;
4611 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4612 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4613 if (!new_skb2) {
4614 __qeth_free_new_skb(skb, new_skb);
4615 return -EINVAL;
4616 }
4617 if (new_skb != skb)
4618 __qeth_free_new_skb(new_skb2, new_skb);
4619 new_skb = new_skb2;
4620 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4621 }
4622 if (large_send == QETH_LARGE_SEND_EDDP) {
4623 ctx = qeth_eddp_create_context(card, new_skb, hdr,
4624 skb->sk->sk_protocol);
4625 if (ctx == NULL) {
4626 __qeth_free_new_skb(skb, new_skb);
4627 PRINT_WARN("could not create eddp context\n");
4628 return -EINVAL;
4629 }
4630 } else {
4631 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4632 elements_needed);
4633 if (!elems) {
4634 __qeth_free_new_skb(skb, new_skb);
4635 return -EINVAL;
4636 }
4637 elements_needed += elems;
4638 }
4639
4640 if (card->info.type != QETH_CARD_TYPE_IQD)
4641 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4642 elements_needed, ctx);
4643 else
4644 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4645 elements_needed, ctx);
4646 if (!rc) {
4647 card->stats.tx_packets++;
4648 card->stats.tx_bytes += tx_bytes;
4649 if (new_skb != skb)
4650 dev_kfree_skb_any(skb);
4651 if (card->options.performance_stats) {
4652 if (tso_size &&
4653 !(large_send == QETH_LARGE_SEND_NO)) {
4654 card->perf_stats.large_send_bytes += tx_bytes;
4655 card->perf_stats.large_send_cnt++;
4656 }
4657 if (nr_frags > 0) {
4658 card->perf_stats.sg_skbs_sent++;
4659 /* nr_frags + skb->data */
4660 card->perf_stats.sg_frags_sent +=
4661 nr_frags + 1;
4662 }
4663 }
4664 } else {
4665 card->stats.tx_dropped++;
4666 __qeth_free_new_skb(skb, new_skb);
4667 }
4668 if (ctx != NULL) {
4669 /* drop creator's reference */
4670 qeth_eddp_put_context(ctx);
4671 /* free skb; it's not referenced by a buffer */
4672 if (!rc)
4673 dev_kfree_skb_any(new_skb);
4674 }
4675 return rc;
4676 }
4677
4678 static int
4679 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4680 {
4681 struct qeth_card *card = (struct qeth_card *) dev->priv;
4682 int rc = 0;
4683
4684 switch(regnum){
4685 case MII_BMCR: /* Basic mode control register */
4686 rc = BMCR_FULLDPLX;
4687 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4688 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4689 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4690 rc |= BMCR_SPEED100;
4691 break;
4692 case MII_BMSR: /* Basic mode status register */
4693 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4694 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4695 BMSR_100BASE4;
4696 break;
4697 case MII_PHYSID1: /* PHYS ID 1 */
4698 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4699 dev->dev_addr[2];
4700 rc = (rc >> 5) & 0xFFFF;
4701 break;
4702 case MII_PHYSID2: /* PHYS ID 2 */
4703 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4704 break;
4705 case MII_ADVERTISE: /* Advertisement control reg */
4706 rc = ADVERTISE_ALL;
4707 break;
4708 case MII_LPA: /* Link partner ability reg */
4709 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4710 LPA_100BASE4 | LPA_LPACK;
4711 break;
4712 case MII_EXPANSION: /* Expansion register */
4713 break;
4714 case MII_DCOUNTER: /* disconnect counter */
4715 break;
4716 case MII_FCSCOUNTER: /* false carrier counter */
4717 break;
4718 case MII_NWAYTEST: /* N-way auto-neg test register */
4719 break;
4720 case MII_RERRCOUNTER: /* rx error counter */
4721 rc = card->stats.rx_errors;
4722 break;
4723 case MII_SREVISION: /* silicon revision */
4724 break;
4725 case MII_RESV1: /* reserved 1 */
4726 break;
4727 case MII_LBRERROR: /* loopback, rx, bypass error */
4728 break;
4729 case MII_PHYADDR: /* physical address */
4730 break;
4731 case MII_RESV2: /* reserved 2 */
4732 break;
4733 case MII_TPISTATUS: /* TPI status for 10mbps */
4734 break;
4735 case MII_NCONFIG: /* network interface config */
4736 break;
4737 default:
4738 break;
4739 }
4740 return rc;
4741 }
4742
4743
4744 static const char *
4745 qeth_arp_get_error_cause(int *rc)
4746 {
4747 switch (*rc) {
4748 case QETH_IPA_ARP_RC_FAILED:
4749 *rc = -EIO;
4750 return "operation failed";
4751 case QETH_IPA_ARP_RC_NOTSUPP:
4752 *rc = -EOPNOTSUPP;
4753 return "operation not supported";
4754 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4755 *rc = -EINVAL;
4756 return "argument out of range";
4757 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4758 *rc = -EOPNOTSUPP;
4759 return "query operation not supported";
4760 case QETH_IPA_ARP_RC_Q_NO_DATA:
4761 *rc = -ENOENT;
4762 return "no query data available";
4763 default:
4764 return "unknown error";
4765 }
4766 }
4767
4768 static int
4769 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4770 __u16, long);
4771
4772 static int
4773 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4774 {
4775 int tmp;
4776 int rc;
4777
4778 QETH_DBF_TEXT(trace,3,"arpstnoe");
4779
4780 /*
4781 * currently GuestLAN only supports the ARP assist function
4782 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4783 * thus we say EOPNOTSUPP for this ARP function
4784 */
4785 if (card->info.guestlan)
4786 return -EOPNOTSUPP;
4787 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4788 PRINT_WARN("ARP processing not supported "
4789 "on %s!\n", QETH_CARD_IFNAME(card));
4790 return -EOPNOTSUPP;
4791 }
4792 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4793 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4794 no_entries);
4795 if (rc) {
4796 tmp = rc;
4797 PRINT_WARN("Could not set number of ARP entries on %s: "
4798 "%s (0x%x/%d)\n",
4799 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4800 tmp, tmp);
4801 }
4802 return rc;
4803 }
4804
4805 static void
4806 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4807 struct qeth_arp_query_data *qdata,
4808 int entry_size, int uentry_size)
4809 {
4810 char *entry_ptr;
4811 char *uentry_ptr;
4812 int i;
4813
4814 entry_ptr = (char *)&qdata->data;
4815 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4816 for (i = 0; i < qdata->no_entries; ++i){
4817 /* strip off 32 bytes "media specific information" */
4818 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4819 entry_ptr += entry_size;
4820 uentry_ptr += uentry_size;
4821 }
4822 }
4823
4824 static int
4825 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4826 unsigned long data)
4827 {
4828 struct qeth_ipa_cmd *cmd;
4829 struct qeth_arp_query_data *qdata;
4830 struct qeth_arp_query_info *qinfo;
4831 int entry_size;
4832 int uentry_size;
4833 int i;
4834
4835 QETH_DBF_TEXT(trace,4,"arpquecb");
4836
4837 qinfo = (struct qeth_arp_query_info *) reply->param;
4838 cmd = (struct qeth_ipa_cmd *) data;
4839 if (cmd->hdr.return_code) {
4840 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4841 return 0;
4842 }
4843 if (cmd->data.setassparms.hdr.return_code) {
4844 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4845 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4846 return 0;
4847 }
4848 qdata = &cmd->data.setassparms.data.query_arp;
4849 switch(qdata->reply_bits){
4850 case 5:
4851 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4852 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4853 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4854 break;
4855 case 7:
4856 /* fall through to default */
4857 default:
4858 /* tr is the same as eth -> entry7 */
4859 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4860 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4861 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4862 break;
4863 }
4864 /* check if there is enough room in userspace */
4865 if ((qinfo->udata_len - qinfo->udata_offset) <
4866 qdata->no_entries * uentry_size){
4867 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4868 cmd->hdr.return_code = -ENOMEM;
4869 PRINT_WARN("query ARP user space buffer is too small for "
4870 "the returned number of ARP entries. "
4871 "Aborting query!\n");
4872 goto out_error;
4873 }
4874 QETH_DBF_TEXT_(trace, 4, "anore%i",
4875 cmd->data.setassparms.hdr.number_of_replies);
4876 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4877 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4878
4879 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4880 /* strip off "media specific information" */
4881 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4882 uentry_size);
4883 } else
4884 /*copy entries to user buffer*/
4885 memcpy(qinfo->udata + qinfo->udata_offset,
4886 (char *)&qdata->data, qdata->no_entries*uentry_size);
4887
4888 qinfo->no_entries += qdata->no_entries;
4889 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4890 /* check if all replies received ... */
4891 if (cmd->data.setassparms.hdr.seq_no <
4892 cmd->data.setassparms.hdr.number_of_replies)
4893 return 1;
4894 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4895 /* keep STRIP_ENTRIES flag so the user program can distinguish
4896 * stripped entries from normal ones */
4897 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4898 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4899 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4900 return 0;
4901 out_error:
4902 i = 0;
4903 memcpy(qinfo->udata, &i, 4);
4904 return 0;
4905 }
4906
4907 static int
4908 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4909 int len, int (*reply_cb)(struct qeth_card *,
4910 struct qeth_reply *,
4911 unsigned long),
4912 void *reply_param)
4913 {
4914 QETH_DBF_TEXT(trace,4,"sendarp");
4915
4916 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4917 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4918 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4919 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4920 reply_cb, reply_param);
4921 }
4922
4923 static int
4924 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4925 int len, int (*reply_cb)(struct qeth_card *,
4926 struct qeth_reply *,
4927 unsigned long),
4928 void *reply_param)
4929 {
4930 u16 s1, s2;
4931
4932 QETH_DBF_TEXT(trace,4,"sendsnmp");
4933
4934 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4935 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4936 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4937 /* adjust PDU length fields in IPA_PDU_HEADER */
4938 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4939 s2 = (u32) len;
4940 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4941 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4942 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4943 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4944 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4945 reply_cb, reply_param);
4946 }
4947
4948 static struct qeth_cmd_buffer *
4949 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4950 __u16, __u16, enum qeth_prot_versions);
4951 static int
4952 qeth_arp_query(struct qeth_card *card, char __user *udata)
4953 {
4954 struct qeth_cmd_buffer *iob;
4955 struct qeth_arp_query_info qinfo = {0, };
4956 int tmp;
4957 int rc;
4958
4959 QETH_DBF_TEXT(trace,3,"arpquery");
4960
4961 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4962 IPA_ARP_PROCESSING)) {
4963 PRINT_WARN("ARP processing not supported "
4964 "on %s!\n", QETH_CARD_IFNAME(card));
4965 return -EOPNOTSUPP;
4966 }
4967 /* get size of userspace buffer and mask_bits -> 6 bytes */
4968 if (copy_from_user(&qinfo, udata, 6))
4969 return -EFAULT;
4970 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4971 return -ENOMEM;
4972 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4973 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4974 IPA_CMD_ASS_ARP_QUERY_INFO,
4975 sizeof(int),QETH_PROT_IPV4);
4976
4977 rc = qeth_send_ipa_arp_cmd(card, iob,
4978 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4979 qeth_arp_query_cb, (void *)&qinfo);
4980 if (rc) {
4981 tmp = rc;
4982 PRINT_WARN("Error while querying ARP cache on %s: %s "
4983 "(0x%x/%d)\n",
4984 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4985 tmp, tmp);
4986 if (copy_to_user(udata, qinfo.udata, 4))
4987 rc = -EFAULT;
4988 } else {
4989 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4990 rc = -EFAULT;
4991 }
4992 kfree(qinfo.udata);
4993 return rc;
4994 }
4995
4996 /**
4997 * SNMP command callback
4998 */
4999 static int
5000 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
5001 unsigned long sdata)
5002 {
5003 struct qeth_ipa_cmd *cmd;
5004 struct qeth_arp_query_info *qinfo;
5005 struct qeth_snmp_cmd *snmp;
5006 unsigned char *data;
5007 __u16 data_len;
5008
5009 QETH_DBF_TEXT(trace,3,"snpcmdcb");
5010
5011 cmd = (struct qeth_ipa_cmd *) sdata;
5012 data = (unsigned char *)((char *)cmd - reply->offset);
5013 qinfo = (struct qeth_arp_query_info *) reply->param;
5014 snmp = &cmd->data.setadapterparms.data.snmp;
5015
5016 if (cmd->hdr.return_code) {
5017 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
5018 return 0;
5019 }
5020 if (cmd->data.setadapterparms.hdr.return_code) {
5021 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5022 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
5023 return 0;
5024 }
5025 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
5026 if (cmd->data.setadapterparms.hdr.seq_no == 1)
5027 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
5028 else
5029 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
5030
5031 /* check if there is enough room in userspace */
5032 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
5033 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
5034 cmd->hdr.return_code = -ENOMEM;
5035 return 0;
5036 }
5037 QETH_DBF_TEXT_(trace, 4, "snore%i",
5038 cmd->data.setadapterparms.hdr.used_total);
5039 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
5040 /*copy entries to user buffer*/
5041 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
5042 memcpy(qinfo->udata + qinfo->udata_offset,
5043 (char *)snmp,
5044 data_len + offsetof(struct qeth_snmp_cmd,data));
5045 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
5046 } else {
5047 memcpy(qinfo->udata + qinfo->udata_offset,
5048 (char *)&snmp->request, data_len);
5049 }
5050 qinfo->udata_offset += data_len;
5051 /* check if all replies received ... */
5052 QETH_DBF_TEXT_(trace, 4, "srtot%i",
5053 cmd->data.setadapterparms.hdr.used_total);
5054 QETH_DBF_TEXT_(trace, 4, "srseq%i",
5055 cmd->data.setadapterparms.hdr.seq_no);
5056 if (cmd->data.setadapterparms.hdr.seq_no <
5057 cmd->data.setadapterparms.hdr.used_total)
5058 return 1;
5059 return 0;
5060 }
5061
5062 static struct qeth_cmd_buffer *
5063 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
5064 enum qeth_prot_versions );
5065
5066 static struct qeth_cmd_buffer *
5067 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
5068 {
5069 struct qeth_cmd_buffer *iob;
5070 struct qeth_ipa_cmd *cmd;
5071
5072 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
5073 QETH_PROT_IPV4);
5074 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5075 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
5076 cmd->data.setadapterparms.hdr.command_code = command;
5077 cmd->data.setadapterparms.hdr.used_total = 1;
5078 cmd->data.setadapterparms.hdr.seq_no = 1;
5079
5080 return iob;
5081 }
5082
5083 /**
5084 * function to send SNMP commands to OSA-E card
5085 */
5086 static int
5087 qeth_snmp_command(struct qeth_card *card, char __user *udata)
5088 {
5089 struct qeth_cmd_buffer *iob;
5090 struct qeth_ipa_cmd *cmd;
5091 struct qeth_snmp_ureq *ureq;
5092 int req_len;
5093 struct qeth_arp_query_info qinfo = {0, };
5094 int rc = 0;
5095
5096 QETH_DBF_TEXT(trace,3,"snmpcmd");
5097
5098 if (card->info.guestlan)
5099 return -EOPNOTSUPP;
5100
5101 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
5102 (!card->options.layer2) ) {
5103 PRINT_WARN("SNMP Query MIBS not supported "
5104 "on %s!\n", QETH_CARD_IFNAME(card));
5105 return -EOPNOTSUPP;
5106 }
5107 /* skip 4 bytes (data_len struct member) to get req_len */
5108 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
5109 return -EFAULT;
5110 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
5111 if (!ureq) {
5112 QETH_DBF_TEXT(trace, 2, "snmpnome");
5113 return -ENOMEM;
5114 }
5115 if (copy_from_user(ureq, udata,
5116 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
5117 kfree(ureq);
5118 return -EFAULT;
5119 }
5120 qinfo.udata_len = ureq->hdr.data_len;
5121 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
5122 kfree(ureq);
5123 return -ENOMEM;
5124 }
5125 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5126
5127 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5128 QETH_SNMP_SETADP_CMDLENGTH + req_len);
5129 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5130 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5131 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5132 qeth_snmp_command_cb, (void *)&qinfo);
5133 if (rc)
5134 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5135 QETH_CARD_IFNAME(card), rc);
5136 else {
5137 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5138 rc = -EFAULT;
5139 }
5140
5141 kfree(ureq);
5142 kfree(qinfo.udata);
5143 return rc;
5144 }
5145
5146 static int
5147 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5148 unsigned long);
5149
5150 static int
5151 qeth_default_setadapterparms_cb(struct qeth_card *card,
5152 struct qeth_reply *reply,
5153 unsigned long data);
5154 static int
5155 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5156 __u16, long,
5157 int (*reply_cb)
5158 (struct qeth_card *, struct qeth_reply *, unsigned long),
5159 void *reply_param);
5160
5161 static int
5162 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5163 {
5164 struct qeth_cmd_buffer *iob;
5165 char buf[16];
5166 int tmp;
5167 int rc;
5168
5169 QETH_DBF_TEXT(trace,3,"arpadent");
5170
5171 /*
5172 * currently GuestLAN only supports the ARP assist function
5173 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5174 * thus we say EOPNOTSUPP for this ARP function
5175 */
5176 if (card->info.guestlan)
5177 return -EOPNOTSUPP;
5178 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5179 PRINT_WARN("ARP processing not supported "
5180 "on %s!\n", QETH_CARD_IFNAME(card));
5181 return -EOPNOTSUPP;
5182 }
5183
5184 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5185 IPA_CMD_ASS_ARP_ADD_ENTRY,
5186 sizeof(struct qeth_arp_cache_entry),
5187 QETH_PROT_IPV4);
5188 rc = qeth_send_setassparms(card, iob,
5189 sizeof(struct qeth_arp_cache_entry),
5190 (unsigned long) entry,
5191 qeth_default_setassparms_cb, NULL);
5192 if (rc) {
5193 tmp = rc;
5194 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5195 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5196 "%s (0x%x/%d)\n",
5197 buf, QETH_CARD_IFNAME(card),
5198 qeth_arp_get_error_cause(&rc), tmp, tmp);
5199 }
5200 return rc;
5201 }
5202
5203 static int
5204 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5205 {
5206 struct qeth_cmd_buffer *iob;
5207 char buf[16] = {0, };
5208 int tmp;
5209 int rc;
5210
5211 QETH_DBF_TEXT(trace,3,"arprment");
5212
5213 /*
5214 * currently GuestLAN only supports the ARP assist function
5215 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5216 * thus we say EOPNOTSUPP for this ARP function
5217 */
5218 if (card->info.guestlan)
5219 return -EOPNOTSUPP;
5220 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5221 PRINT_WARN("ARP processing not supported "
5222 "on %s!\n", QETH_CARD_IFNAME(card));
5223 return -EOPNOTSUPP;
5224 }
5225 memcpy(buf, entry, 12);
5226 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5227 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5228 12,
5229 QETH_PROT_IPV4);
5230 rc = qeth_send_setassparms(card, iob,
5231 12, (unsigned long)buf,
5232 qeth_default_setassparms_cb, NULL);
5233 if (rc) {
5234 tmp = rc;
5235 memset(buf, 0, 16);
5236 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5237 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5238 "%s (0x%x/%d)\n",
5239 buf, QETH_CARD_IFNAME(card),
5240 qeth_arp_get_error_cause(&rc), tmp, tmp);
5241 }
5242 return rc;
5243 }
5244
5245 static int
5246 qeth_arp_flush_cache(struct qeth_card *card)
5247 {
5248 int rc;
5249 int tmp;
5250
5251 QETH_DBF_TEXT(trace,3,"arpflush");
5252
5253 /*
5254 * currently GuestLAN only supports the ARP assist function
5255 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5256 * thus we say EOPNOTSUPP for this ARP function
5257 */
5258 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5259 return -EOPNOTSUPP;
5260 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5261 PRINT_WARN("ARP processing not supported "
5262 "on %s!\n", QETH_CARD_IFNAME(card));
5263 return -EOPNOTSUPP;
5264 }
5265 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5266 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5267 if (rc){
5268 tmp = rc;
5269 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5270 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5271 tmp, tmp);
5272 }
5273 return rc;
5274 }
5275
5276 static int
5277 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5278 {
5279 struct qeth_card *card = (struct qeth_card *)dev->priv;
5280 struct qeth_arp_cache_entry arp_entry;
5281 struct mii_ioctl_data *mii_data;
5282 int rc = 0;
5283
5284 if (!card)
5285 return -ENODEV;
5286
5287 if ((card->state != CARD_STATE_UP) &&
5288 (card->state != CARD_STATE_SOFTSETUP))
5289 return -ENODEV;
5290
5291 if (card->info.type == QETH_CARD_TYPE_OSN)
5292 return -EPERM;
5293
5294 switch (cmd){
5295 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5296 if ( !capable(CAP_NET_ADMIN) ||
5297 (card->options.layer2) ) {
5298 rc = -EPERM;
5299 break;
5300 }
5301 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5302 break;
5303 case SIOC_QETH_ARP_QUERY_INFO:
5304 if ( !capable(CAP_NET_ADMIN) ||
5305 (card->options.layer2) ) {
5306 rc = -EPERM;
5307 break;
5308 }
5309 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5310 break;
5311 case SIOC_QETH_ARP_ADD_ENTRY:
5312 if ( !capable(CAP_NET_ADMIN) ||
5313 (card->options.layer2) ) {
5314 rc = -EPERM;
5315 break;
5316 }
5317 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5318 sizeof(struct qeth_arp_cache_entry)))
5319 rc = -EFAULT;
5320 else
5321 rc = qeth_arp_add_entry(card, &arp_entry);
5322 break;
5323 case SIOC_QETH_ARP_REMOVE_ENTRY:
5324 if ( !capable(CAP_NET_ADMIN) ||
5325 (card->options.layer2) ) {
5326 rc = -EPERM;
5327 break;
5328 }
5329 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5330 sizeof(struct qeth_arp_cache_entry)))
5331 rc = -EFAULT;
5332 else
5333 rc = qeth_arp_remove_entry(card, &arp_entry);
5334 break;
5335 case SIOC_QETH_ARP_FLUSH_CACHE:
5336 if ( !capable(CAP_NET_ADMIN) ||
5337 (card->options.layer2) ) {
5338 rc = -EPERM;
5339 break;
5340 }
5341 rc = qeth_arp_flush_cache(card);
5342 break;
5343 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5344 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5345 break;
5346 case SIOC_QETH_GET_CARD_TYPE:
5347 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5348 !card->info.guestlan)
5349 return 1;
5350 return 0;
5351 break;
5352 case SIOCGMIIPHY:
5353 mii_data = if_mii(rq);
5354 mii_data->phy_id = 0;
5355 break;
5356 case SIOCGMIIREG:
5357 mii_data = if_mii(rq);
5358 if (mii_data->phy_id != 0)
5359 rc = -EINVAL;
5360 else
5361 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5362 mii_data->reg_num);
5363 break;
5364 default:
5365 rc = -EOPNOTSUPP;
5366 }
5367 if (rc)
5368 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5369 return rc;
5370 }
5371
5372 static struct net_device_stats *
5373 qeth_get_stats(struct net_device *dev)
5374 {
5375 struct qeth_card *card;
5376
5377 card = (struct qeth_card *) (dev->priv);
5378
5379 QETH_DBF_TEXT(trace,5,"getstat");
5380
5381 return &card->stats;
5382 }
5383
5384 static int
5385 qeth_change_mtu(struct net_device *dev, int new_mtu)
5386 {
5387 struct qeth_card *card;
5388 char dbf_text[15];
5389
5390 card = (struct qeth_card *) (dev->priv);
5391
5392 QETH_DBF_TEXT(trace,4,"chgmtu");
5393 sprintf(dbf_text, "%8x", new_mtu);
5394 QETH_DBF_TEXT(trace,4,dbf_text);
5395
5396 if (new_mtu < 64)
5397 return -EINVAL;
5398 if (new_mtu > 65535)
5399 return -EINVAL;
5400 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5401 (!qeth_mtu_is_valid(card, new_mtu)))
5402 return -EINVAL;
5403 dev->mtu = new_mtu;
5404 return 0;
5405 }
5406
5407 #ifdef CONFIG_QETH_VLAN
5408 static void
5409 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5410 {
5411 struct qeth_card *card;
5412 unsigned long flags;
5413
5414 QETH_DBF_TEXT(trace,4,"vlanreg");
5415
5416 card = (struct qeth_card *) dev->priv;
5417 spin_lock_irqsave(&card->vlanlock, flags);
5418 card->vlangrp = grp;
5419 spin_unlock_irqrestore(&card->vlanlock, flags);
5420 }
5421
5422 static void
5423 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5424 unsigned short vid)
5425 {
5426 int i;
5427 struct sk_buff *skb;
5428 struct sk_buff_head tmp_list;
5429
5430 skb_queue_head_init(&tmp_list);
5431 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5432 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5433 while ((skb = skb_dequeue(&buf->skb_list))){
5434 if (vlan_tx_tag_present(skb) &&
5435 (vlan_tx_tag_get(skb) == vid)) {
5436 atomic_dec(&skb->users);
5437 dev_kfree_skb(skb);
5438 } else
5439 skb_queue_tail(&tmp_list, skb);
5440 }
5441 }
5442 while ((skb = skb_dequeue(&tmp_list)))
5443 skb_queue_tail(&buf->skb_list, skb);
5444 }
5445
5446 static void
5447 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5448 {
5449 int i, j;
5450
5451 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5452 for (i = 0; i < card->qdio.no_out_queues; ++i){
5453 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5454 qeth_free_vlan_buffer(card, &card->qdio.
5455 out_qs[i]->bufs[j], vid);
5456 }
5457 }
5458
5459 static void
5460 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5461 {
5462 struct in_device *in_dev;
5463 struct in_ifaddr *ifa;
5464 struct qeth_ipaddr *addr;
5465
5466 QETH_DBF_TEXT(trace, 4, "frvaddr4");
5467
5468 rcu_read_lock();
5469 in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
5470 if (!in_dev)
5471 goto out;
5472 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5473 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5474 if (addr){
5475 addr->u.a4.addr = ifa->ifa_address;
5476 addr->u.a4.mask = ifa->ifa_mask;
5477 addr->type = QETH_IP_TYPE_NORMAL;
5478 if (!qeth_delete_ip(card, addr))
5479 kfree(addr);
5480 }
5481 }
5482 out:
5483 rcu_read_unlock();
5484 }
5485
5486 static void
5487 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5488 {
5489 #ifdef CONFIG_QETH_IPV6
5490 struct inet6_dev *in6_dev;
5491 struct inet6_ifaddr *ifa;
5492 struct qeth_ipaddr *addr;
5493
5494 QETH_DBF_TEXT(trace, 4, "frvaddr6");
5495
5496 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
5497 if (!in6_dev)
5498 return;
5499 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5500 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5501 if (addr){
5502 memcpy(&addr->u.a6.addr, &ifa->addr,
5503 sizeof(struct in6_addr));
5504 addr->u.a6.pfxlen = ifa->prefix_len;
5505 addr->type = QETH_IP_TYPE_NORMAL;
5506 if (!qeth_delete_ip(card, addr))
5507 kfree(addr);
5508 }
5509 }
5510 in6_dev_put(in6_dev);
5511 #endif /* CONFIG_QETH_IPV6 */
5512 }
5513
5514 static void
5515 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5516 {
5517 if (card->options.layer2 || !card->vlangrp)
5518 return;
5519 qeth_free_vlan_addresses4(card, vid);
5520 qeth_free_vlan_addresses6(card, vid);
5521 }
5522
5523 static int
5524 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5525 struct qeth_reply *reply,
5526 unsigned long data)
5527 {
5528 struct qeth_ipa_cmd *cmd;
5529
5530 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5531 cmd = (struct qeth_ipa_cmd *) data;
5532 if (cmd->hdr.return_code) {
5533 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5534 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5535 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5536 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5537 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5538 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5539 }
5540 return 0;
5541 }
5542
5543 static int
5544 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5545 enum qeth_ipa_cmds ipacmd)
5546 {
5547 struct qeth_ipa_cmd *cmd;
5548 struct qeth_cmd_buffer *iob;
5549
5550 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5551 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5552 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5553 cmd->data.setdelvlan.vlan_id = i;
5554 return qeth_send_ipa_cmd(card, iob,
5555 qeth_layer2_send_setdelvlan_cb, NULL);
5556 }
5557
5558 static void
5559 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5560 {
5561 unsigned short i;
5562
5563 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5564
5565 if (!card->vlangrp)
5566 return;
5567 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5568 if (vlan_group_get_device(card->vlangrp, i) == NULL)
5569 continue;
5570 if (clear)
5571 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5572 else
5573 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5574 }
5575 }
5576
5577 /*add_vid is layer 2 used only ....*/
5578 static void
5579 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5580 {
5581 struct qeth_card *card;
5582
5583 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5584
5585 card = (struct qeth_card *) dev->priv;
5586 if (!card->options.layer2)
5587 return;
5588 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5589 }
5590
5591 /*... kill_vid used for both modes*/
5592 static void
5593 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5594 {
5595 struct qeth_card *card;
5596 unsigned long flags;
5597
5598 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5599
5600 card = (struct qeth_card *) dev->priv;
5601 /* free all skbs for the vlan device */
5602 qeth_free_vlan_skbs(card, vid);
5603 spin_lock_irqsave(&card->vlanlock, flags);
5604 /* unregister IP addresses of vlan device */
5605 qeth_free_vlan_addresses(card, vid);
5606 vlan_group_set_device(card->vlangrp, vid, NULL);
5607 spin_unlock_irqrestore(&card->vlanlock, flags);
5608 if (card->options.layer2)
5609 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5610 qeth_set_multicast_list(card->dev);
5611 }
5612 #endif
5613 /**
5614 * Examine hardware response to SET_PROMISC_MODE
5615 */
5616 static int
5617 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5618 struct qeth_reply *reply,
5619 unsigned long data)
5620 {
5621 struct qeth_ipa_cmd *cmd;
5622 struct qeth_ipacmd_setadpparms *setparms;
5623
5624 QETH_DBF_TEXT(trace,4,"prmadpcb");
5625
5626 cmd = (struct qeth_ipa_cmd *) data;
5627 setparms = &(cmd->data.setadapterparms);
5628
5629 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5630 if (cmd->hdr.return_code) {
5631 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5632 setparms->data.mode = SET_PROMISC_MODE_OFF;
5633 }
5634 card->info.promisc_mode = setparms->data.mode;
5635 return 0;
5636 }
5637 /*
5638 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5639 */
5640 static void
5641 qeth_setadp_promisc_mode(struct qeth_card *card)
5642 {
5643 enum qeth_ipa_promisc_modes mode;
5644 struct net_device *dev = card->dev;
5645 struct qeth_cmd_buffer *iob;
5646 struct qeth_ipa_cmd *cmd;
5647
5648 QETH_DBF_TEXT(trace, 4, "setprom");
5649
5650 if (((dev->flags & IFF_PROMISC) &&
5651 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5652 (!(dev->flags & IFF_PROMISC) &&
5653 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5654 return;
5655 mode = SET_PROMISC_MODE_OFF;
5656 if (dev->flags & IFF_PROMISC)
5657 mode = SET_PROMISC_MODE_ON;
5658 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5659
5660 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5661 sizeof(struct qeth_ipacmd_setadpparms));
5662 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5663 cmd->data.setadapterparms.data.mode = mode;
5664 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5665 }
5666
5667 /**
5668 * set multicast address on card
5669 */
5670 static void
5671 qeth_set_multicast_list(struct net_device *dev)
5672 {
5673 struct qeth_card *card = (struct qeth_card *) dev->priv;
5674
5675 if (card->info.type == QETH_CARD_TYPE_OSN)
5676 return ;
5677
5678 QETH_DBF_TEXT(trace, 3, "setmulti");
5679 qeth_delete_mc_addresses(card);
5680 if (card->options.layer2) {
5681 qeth_layer2_add_multicast(card);
5682 goto out;
5683 }
5684 qeth_add_multicast_ipv4(card);
5685 #ifdef CONFIG_QETH_IPV6
5686 qeth_add_multicast_ipv6(card);
5687 #endif
5688 out:
5689 qeth_set_ip_addr_list(card);
5690 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5691 return;
5692 qeth_setadp_promisc_mode(card);
5693 }
5694
5695 static int
5696 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5697 {
5698 return 0;
5699 }
5700
5701 static void
5702 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5703 {
5704 if (dev->type == ARPHRD_IEEE802_TR)
5705 ip_tr_mc_map(ipm, mac);
5706 else
5707 ip_eth_mc_map(ipm, mac);
5708 }
5709
5710 static struct qeth_ipaddr *
5711 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5712 {
5713 struct qeth_ipaddr *addr;
5714
5715 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5716 if (addr == NULL) {
5717 PRINT_WARN("Not enough memory to add address\n");
5718 return NULL;
5719 }
5720 addr->type = QETH_IP_TYPE_NORMAL;
5721 addr->proto = prot;
5722 return addr;
5723 }
5724
5725 int
5726 qeth_osn_assist(struct net_device *dev,
5727 void *data,
5728 int data_len)
5729 {
5730 struct qeth_cmd_buffer *iob;
5731 struct qeth_card *card;
5732 int rc;
5733
5734 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5735 if (!dev)
5736 return -ENODEV;
5737 card = (struct qeth_card *)dev->priv;
5738 if (!card)
5739 return -ENODEV;
5740 if ((card->state != CARD_STATE_UP) &&
5741 (card->state != CARD_STATE_SOFTSETUP))
5742 return -ENODEV;
5743 iob = qeth_wait_for_buffer(&card->write);
5744 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5745 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5746 return rc;
5747 }
5748
5749 static struct net_device *
5750 qeth_netdev_by_devno(unsigned char *read_dev_no)
5751 {
5752 struct qeth_card *card;
5753 struct net_device *ndev;
5754 unsigned char *readno;
5755 __u16 temp_dev_no, card_dev_no;
5756 char *endp;
5757 unsigned long flags;
5758
5759 ndev = NULL;
5760 memcpy(&temp_dev_no, read_dev_no, 2);
5761 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5762 list_for_each_entry(card, &qeth_card_list.list, list) {
5763 readno = CARD_RDEV_ID(card);
5764 readno += (strlen(readno) - 4);
5765 card_dev_no = simple_strtoul(readno, &endp, 16);
5766 if (card_dev_no == temp_dev_no) {
5767 ndev = card->dev;
5768 break;
5769 }
5770 }
5771 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5772 return ndev;
5773 }
5774
5775 int
5776 qeth_osn_register(unsigned char *read_dev_no,
5777 struct net_device **dev,
5778 int (*assist_cb)(struct net_device *, void *),
5779 int (*data_cb)(struct sk_buff *))
5780 {
5781 struct qeth_card * card;
5782
5783 QETH_DBF_TEXT(trace, 2, "osnreg");
5784 *dev = qeth_netdev_by_devno(read_dev_no);
5785 if (*dev == NULL)
5786 return -ENODEV;
5787 card = (struct qeth_card *)(*dev)->priv;
5788 if (!card)
5789 return -ENODEV;
5790 if ((assist_cb == NULL) || (data_cb == NULL))
5791 return -EINVAL;
5792 card->osn_info.assist_cb = assist_cb;
5793 card->osn_info.data_cb = data_cb;
5794 return 0;
5795 }
5796
5797 void
5798 qeth_osn_deregister(struct net_device * dev)
5799 {
5800 struct qeth_card *card;
5801
5802 QETH_DBF_TEXT(trace, 2, "osndereg");
5803 if (!dev)
5804 return;
5805 card = (struct qeth_card *)dev->priv;
5806 if (!card)
5807 return;
5808 card->osn_info.assist_cb = NULL;
5809 card->osn_info.data_cb = NULL;
5810 return;
5811 }
5812
5813 static void
5814 qeth_delete_mc_addresses(struct qeth_card *card)
5815 {
5816 struct qeth_ipaddr *iptodo;
5817 unsigned long flags;
5818
5819 QETH_DBF_TEXT(trace,4,"delmc");
5820 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5821 if (!iptodo) {
5822 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5823 return;
5824 }
5825 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5826 spin_lock_irqsave(&card->ip_lock, flags);
5827 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5828 kfree(iptodo);
5829 spin_unlock_irqrestore(&card->ip_lock, flags);
5830 }
5831
5832 static void
5833 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5834 {
5835 struct qeth_ipaddr *ipm;
5836 struct ip_mc_list *im4;
5837 char buf[MAX_ADDR_LEN];
5838
5839 QETH_DBF_TEXT(trace,4,"addmc");
5840 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5841 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5842 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5843 if (!ipm)
5844 continue;
5845 ipm->u.a4.addr = im4->multiaddr;
5846 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5847 ipm->is_multicast = 1;
5848 if (!qeth_add_ip(card,ipm))
5849 kfree(ipm);
5850 }
5851 }
5852
5853 static inline void
5854 qeth_add_vlan_mc(struct qeth_card *card)
5855 {
5856 #ifdef CONFIG_QETH_VLAN
5857 struct in_device *in_dev;
5858 struct vlan_group *vg;
5859 int i;
5860
5861 QETH_DBF_TEXT(trace,4,"addmcvl");
5862 if ( ((card->options.layer2 == 0) &&
5863 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5864 (card->vlangrp == NULL) )
5865 return ;
5866
5867 vg = card->vlangrp;
5868 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5869 struct net_device *netdev = vlan_group_get_device(vg, i);
5870 if (netdev == NULL ||
5871 !(netdev->flags & IFF_UP))
5872 continue;
5873 in_dev = in_dev_get(netdev);
5874 if (!in_dev)
5875 continue;
5876 read_lock(&in_dev->mc_list_lock);
5877 qeth_add_mc(card,in_dev);
5878 read_unlock(&in_dev->mc_list_lock);
5879 in_dev_put(in_dev);
5880 }
5881 #endif
5882 }
5883
5884 static void
5885 qeth_add_multicast_ipv4(struct qeth_card *card)
5886 {
5887 struct in_device *in4_dev;
5888
5889 QETH_DBF_TEXT(trace,4,"chkmcv4");
5890 in4_dev = in_dev_get(card->dev);
5891 if (in4_dev == NULL)
5892 return;
5893 read_lock(&in4_dev->mc_list_lock);
5894 qeth_add_mc(card, in4_dev);
5895 qeth_add_vlan_mc(card);
5896 read_unlock(&in4_dev->mc_list_lock);
5897 in_dev_put(in4_dev);
5898 }
5899
5900 static void
5901 qeth_layer2_add_multicast(struct qeth_card *card)
5902 {
5903 struct qeth_ipaddr *ipm;
5904 struct dev_mc_list *dm;
5905
5906 QETH_DBF_TEXT(trace,4,"L2addmc");
5907 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5908 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5909 if (!ipm)
5910 continue;
5911 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5912 ipm->is_multicast = 1;
5913 if (!qeth_add_ip(card, ipm))
5914 kfree(ipm);
5915 }
5916 }
5917
5918 #ifdef CONFIG_QETH_IPV6
5919 static void
5920 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5921 {
5922 struct qeth_ipaddr *ipm;
5923 struct ifmcaddr6 *im6;
5924 char buf[MAX_ADDR_LEN];
5925
5926 QETH_DBF_TEXT(trace,4,"addmc6");
5927 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5928 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5929 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5930 if (!ipm)
5931 continue;
5932 ipm->is_multicast = 1;
5933 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5934 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5935 sizeof(struct in6_addr));
5936 if (!qeth_add_ip(card,ipm))
5937 kfree(ipm);
5938 }
5939 }
5940
5941 static inline void
5942 qeth_add_vlan_mc6(struct qeth_card *card)
5943 {
5944 #ifdef CONFIG_QETH_VLAN
5945 struct inet6_dev *in_dev;
5946 struct vlan_group *vg;
5947 int i;
5948
5949 QETH_DBF_TEXT(trace,4,"admc6vl");
5950 if ( ((card->options.layer2 == 0) &&
5951 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5952 (card->vlangrp == NULL))
5953 return ;
5954
5955 vg = card->vlangrp;
5956 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5957 struct net_device *netdev = vlan_group_get_device(vg, i);
5958 if (netdev == NULL ||
5959 !(netdev->flags & IFF_UP))
5960 continue;
5961 in_dev = in6_dev_get(netdev);
5962 if (!in_dev)
5963 continue;
5964 read_lock_bh(&in_dev->lock);
5965 qeth_add_mc6(card,in_dev);
5966 read_unlock_bh(&in_dev->lock);
5967 in6_dev_put(in_dev);
5968 }
5969 #endif /* CONFIG_QETH_VLAN */
5970 }
5971
5972 static void
5973 qeth_add_multicast_ipv6(struct qeth_card *card)
5974 {
5975 struct inet6_dev *in6_dev;
5976
5977 QETH_DBF_TEXT(trace,4,"chkmcv6");
5978 if (!qeth_is_supported(card, IPA_IPV6))
5979 return ;
5980 in6_dev = in6_dev_get(card->dev);
5981 if (in6_dev == NULL)
5982 return;
5983 read_lock_bh(&in6_dev->lock);
5984 qeth_add_mc6(card, in6_dev);
5985 qeth_add_vlan_mc6(card);
5986 read_unlock_bh(&in6_dev->lock);
5987 in6_dev_put(in6_dev);
5988 }
5989 #endif /* CONFIG_QETH_IPV6 */
5990
5991 static int
5992 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5993 enum qeth_ipa_cmds ipacmd,
5994 int (*reply_cb) (struct qeth_card *,
5995 struct qeth_reply*,
5996 unsigned long))
5997 {
5998 struct qeth_ipa_cmd *cmd;
5999 struct qeth_cmd_buffer *iob;
6000
6001 QETH_DBF_TEXT(trace, 2, "L2sdmac");
6002 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
6003 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6004 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
6005 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
6006 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
6007 }
6008
6009 static int
6010 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
6011 struct qeth_reply *reply,
6012 unsigned long data)
6013 {
6014 struct qeth_ipa_cmd *cmd;
6015 __u8 *mac;
6016
6017 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
6018 cmd = (struct qeth_ipa_cmd *) data;
6019 mac = &cmd->data.setdelmac.mac[0];
6020 /* MAC already registered, needed in couple/uncouple case */
6021 if (cmd->hdr.return_code == 0x2005) {
6022 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
6023 "already existing on %s \n",
6024 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6025 QETH_CARD_IFNAME(card));
6026 cmd->hdr.return_code = 0;
6027 }
6028 if (cmd->hdr.return_code)
6029 PRINT_ERR("Could not set group MAC " \
6030 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6031 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6032 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
6033 return 0;
6034 }
6035
6036 static int
6037 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
6038 {
6039 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
6040 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
6041 qeth_layer2_send_setgroupmac_cb);
6042 }
6043
6044 static int
6045 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
6046 struct qeth_reply *reply,
6047 unsigned long data)
6048 {
6049 struct qeth_ipa_cmd *cmd;
6050 __u8 *mac;
6051
6052 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
6053 cmd = (struct qeth_ipa_cmd *) data;
6054 mac = &cmd->data.setdelmac.mac[0];
6055 if (cmd->hdr.return_code)
6056 PRINT_ERR("Could not delete group MAC " \
6057 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6058 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6059 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
6060 return 0;
6061 }
6062
6063 static int
6064 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
6065 {
6066 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
6067 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
6068 qeth_layer2_send_delgroupmac_cb);
6069 }
6070
6071 static int
6072 qeth_layer2_send_setmac_cb(struct qeth_card *card,
6073 struct qeth_reply *reply,
6074 unsigned long data)
6075 {
6076 struct qeth_ipa_cmd *cmd;
6077
6078 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
6079 cmd = (struct qeth_ipa_cmd *) data;
6080 if (cmd->hdr.return_code) {
6081 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
6082 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6083 cmd->hdr.return_code = -EIO;
6084 } else {
6085 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
6086 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
6087 OSA_ADDR_LEN);
6088 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
6089 "successfully registered on device %s\n",
6090 card->dev->dev_addr[0], card->dev->dev_addr[1],
6091 card->dev->dev_addr[2], card->dev->dev_addr[3],
6092 card->dev->dev_addr[4], card->dev->dev_addr[5],
6093 card->dev->name);
6094 }
6095 return 0;
6096 }
6097
6098 static int
6099 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
6100 {
6101 QETH_DBF_TEXT(trace, 2, "L2Setmac");
6102 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
6103 qeth_layer2_send_setmac_cb);
6104 }
6105
6106 static int
6107 qeth_layer2_send_delmac_cb(struct qeth_card *card,
6108 struct qeth_reply *reply,
6109 unsigned long data)
6110 {
6111 struct qeth_ipa_cmd *cmd;
6112
6113 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6114 cmd = (struct qeth_ipa_cmd *) data;
6115 if (cmd->hdr.return_code) {
6116 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6117 cmd->hdr.return_code = -EIO;
6118 return 0;
6119 }
6120 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6121
6122 return 0;
6123 }
6124 static int
6125 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6126 {
6127 QETH_DBF_TEXT(trace, 2, "L2Delmac");
6128 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6129 return 0;
6130 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6131 qeth_layer2_send_delmac_cb);
6132 }
6133
6134 static int
6135 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6136 {
6137 struct sockaddr *addr = p;
6138 struct qeth_card *card;
6139 int rc = 0;
6140
6141 QETH_DBF_TEXT(trace, 3, "setmac");
6142
6143 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6144 QETH_DBF_TEXT(trace, 3, "setmcINV");
6145 return -EOPNOTSUPP;
6146 }
6147 card = (struct qeth_card *) dev->priv;
6148
6149 if (!card->options.layer2) {
6150 PRINT_WARN("Setting MAC address on %s is not supported "
6151 "in Layer 3 mode.\n", dev->name);
6152 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6153 return -EOPNOTSUPP;
6154 }
6155 if (card->info.type == QETH_CARD_TYPE_OSN) {
6156 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6157 dev->name);
6158 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6159 return -EOPNOTSUPP;
6160 }
6161 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6162 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6163 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6164 if (!rc)
6165 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6166 return rc;
6167 }
6168
6169 static void
6170 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6171 __u8 command, enum qeth_prot_versions prot)
6172 {
6173 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6174 cmd->hdr.command = command;
6175 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6176 cmd->hdr.seqno = card->seqno.ipa;
6177 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6178 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6179 if (card->options.layer2)
6180 cmd->hdr.prim_version_no = 2;
6181 else
6182 cmd->hdr.prim_version_no = 1;
6183 cmd->hdr.param_count = 1;
6184 cmd->hdr.prot_version = prot;
6185 cmd->hdr.ipa_supported = 0;
6186 cmd->hdr.ipa_enabled = 0;
6187 }
6188
6189 static struct qeth_cmd_buffer *
6190 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6191 enum qeth_prot_versions prot)
6192 {
6193 struct qeth_cmd_buffer *iob;
6194 struct qeth_ipa_cmd *cmd;
6195
6196 iob = qeth_wait_for_buffer(&card->write);
6197 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6198 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6199
6200 return iob;
6201 }
6202
6203 static int
6204 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6205 {
6206 int rc;
6207 struct qeth_cmd_buffer *iob;
6208 struct qeth_ipa_cmd *cmd;
6209
6210 QETH_DBF_TEXT(trace,4,"setdelmc");
6211
6212 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6213 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6214 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6215 if (addr->proto == QETH_PROT_IPV6)
6216 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6217 sizeof(struct in6_addr));
6218 else
6219 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6220
6221 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6222
6223 return rc;
6224 }
6225 static void
6226 qeth_fill_netmask(u8 *netmask, unsigned int len)
6227 {
6228 int i,j;
6229 for (i=0;i<16;i++) {
6230 j=(len)-(i*8);
6231 if (j >= 8)
6232 netmask[i] = 0xff;
6233 else if (j > 0)
6234 netmask[i] = (u8)(0xFF00>>j);
6235 else
6236 netmask[i] = 0;
6237 }
6238 }
6239
6240 static int
6241 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6242 int ipacmd, unsigned int flags)
6243 {
6244 int rc;
6245 struct qeth_cmd_buffer *iob;
6246 struct qeth_ipa_cmd *cmd;
6247 __u8 netmask[16];
6248
6249 QETH_DBF_TEXT(trace,4,"setdelip");
6250 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6251
6252 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6253 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6254 if (addr->proto == QETH_PROT_IPV6) {
6255 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6256 sizeof(struct in6_addr));
6257 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6258 memcpy(cmd->data.setdelip6.mask, netmask,
6259 sizeof(struct in6_addr));
6260 cmd->data.setdelip6.flags = flags;
6261 } else {
6262 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6263 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6264 cmd->data.setdelip4.flags = flags;
6265 }
6266
6267 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6268
6269 return rc;
6270 }
6271
6272 static int
6273 qeth_layer2_register_addr_entry(struct qeth_card *card,
6274 struct qeth_ipaddr *addr)
6275 {
6276 if (!addr->is_multicast)
6277 return 0;
6278 QETH_DBF_TEXT(trace, 2, "setgmac");
6279 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6280 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6281 }
6282
6283 static int
6284 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6285 struct qeth_ipaddr *addr)
6286 {
6287 if (!addr->is_multicast)
6288 return 0;
6289 QETH_DBF_TEXT(trace, 2, "delgmac");
6290 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6291 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6292 }
6293
6294 static int
6295 qeth_layer3_register_addr_entry(struct qeth_card *card,
6296 struct qeth_ipaddr *addr)
6297 {
6298 char buf[50];
6299 int rc;
6300 int cnt = 3;
6301
6302 if (addr->proto == QETH_PROT_IPV4) {
6303 QETH_DBF_TEXT(trace, 2,"setaddr4");
6304 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6305 } else if (addr->proto == QETH_PROT_IPV6) {
6306 QETH_DBF_TEXT(trace, 2, "setaddr6");
6307 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6308 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6309 } else {
6310 QETH_DBF_TEXT(trace, 2, "setaddr?");
6311 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6312 }
6313 do {
6314 if (addr->is_multicast)
6315 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6316 else
6317 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6318 addr->set_flags);
6319 if (rc)
6320 QETH_DBF_TEXT(trace, 2, "failed");
6321 } while ((--cnt > 0) && rc);
6322 if (rc){
6323 QETH_DBF_TEXT(trace, 2, "FAILED");
6324 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6325 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6326 buf, rc, rc);
6327 }
6328 return rc;
6329 }
6330
6331 static int
6332 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6333 struct qeth_ipaddr *addr)
6334 {
6335 //char buf[50];
6336 int rc;
6337
6338 if (addr->proto == QETH_PROT_IPV4) {
6339 QETH_DBF_TEXT(trace, 2,"deladdr4");
6340 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6341 } else if (addr->proto == QETH_PROT_IPV6) {
6342 QETH_DBF_TEXT(trace, 2, "deladdr6");
6343 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6344 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6345 } else {
6346 QETH_DBF_TEXT(trace, 2, "deladdr?");
6347 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6348 }
6349 if (addr->is_multicast)
6350 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6351 else
6352 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6353 addr->del_flags);
6354 if (rc) {
6355 QETH_DBF_TEXT(trace, 2, "failed");
6356 /* TODO: re-activate this warning as soon as we have a
6357 * clean mirco code
6358 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6359 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6360 buf, rc);
6361 */
6362 }
6363 return rc;
6364 }
6365
6366 static int
6367 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6368 {
6369 if (card->options.layer2)
6370 return qeth_layer2_register_addr_entry(card, addr);
6371
6372 return qeth_layer3_register_addr_entry(card, addr);
6373 }
6374
6375 static int
6376 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6377 {
6378 if (card->options.layer2)
6379 return qeth_layer2_deregister_addr_entry(card, addr);
6380
6381 return qeth_layer3_deregister_addr_entry(card, addr);
6382 }
6383
6384 static u32
6385 qeth_ethtool_get_tx_csum(struct net_device *dev)
6386 {
6387 /* We may need to say that we support tx csum offload if
6388 * we do EDDP or TSO. There are discussions going on to
6389 * enforce rules in the stack and in ethtool that make
6390 * SG and TSO depend on HW_CSUM. At the moment there are
6391 * no such rules....
6392 * If we say yes here, we have to checksum outbound packets
6393 * any time. */
6394 return 0;
6395 }
6396
6397 static int
6398 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6399 {
6400 return -EINVAL;
6401 }
6402
6403 static u32
6404 qeth_ethtool_get_rx_csum(struct net_device *dev)
6405 {
6406 struct qeth_card *card = (struct qeth_card *)dev->priv;
6407
6408 return (card->options.checksum_type == HW_CHECKSUMMING);
6409 }
6410
6411 static int
6412 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6413 {
6414 struct qeth_card *card = (struct qeth_card *)dev->priv;
6415
6416 if ((card->state != CARD_STATE_DOWN) &&
6417 (card->state != CARD_STATE_RECOVER))
6418 return -EPERM;
6419 if (data)
6420 card->options.checksum_type = HW_CHECKSUMMING;
6421 else
6422 card->options.checksum_type = SW_CHECKSUMMING;
6423 return 0;
6424 }
6425
6426 static u32
6427 qeth_ethtool_get_sg(struct net_device *dev)
6428 {
6429 struct qeth_card *card = (struct qeth_card *)dev->priv;
6430
6431 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6432 (dev->features & NETIF_F_SG));
6433 }
6434
6435 static int
6436 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6437 {
6438 struct qeth_card *card = (struct qeth_card *)dev->priv;
6439
6440 if (data) {
6441 if (card->options.large_send != QETH_LARGE_SEND_NO)
6442 dev->features |= NETIF_F_SG;
6443 else {
6444 dev->features &= ~NETIF_F_SG;
6445 return -EINVAL;
6446 }
6447 } else
6448 dev->features &= ~NETIF_F_SG;
6449 return 0;
6450 }
6451
6452 static u32
6453 qeth_ethtool_get_tso(struct net_device *dev)
6454 {
6455 struct qeth_card *card = (struct qeth_card *)dev->priv;
6456
6457 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6458 (dev->features & NETIF_F_TSO));
6459 }
6460
6461 static int
6462 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6463 {
6464 struct qeth_card *card = (struct qeth_card *)dev->priv;
6465
6466 if (data) {
6467 if (card->options.large_send != QETH_LARGE_SEND_NO)
6468 dev->features |= NETIF_F_TSO;
6469 else {
6470 dev->features &= ~NETIF_F_TSO;
6471 return -EINVAL;
6472 }
6473 } else
6474 dev->features &= ~NETIF_F_TSO;
6475 return 0;
6476 }
6477
6478 static struct ethtool_ops qeth_ethtool_ops = {
6479 .get_tx_csum = qeth_ethtool_get_tx_csum,
6480 .set_tx_csum = qeth_ethtool_set_tx_csum,
6481 .get_rx_csum = qeth_ethtool_get_rx_csum,
6482 .set_rx_csum = qeth_ethtool_set_rx_csum,
6483 .get_sg = qeth_ethtool_get_sg,
6484 .set_sg = qeth_ethtool_set_sg,
6485 .get_tso = qeth_ethtool_get_tso,
6486 .set_tso = qeth_ethtool_set_tso,
6487 };
6488
6489 static int
6490 qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6491 {
6492 struct qeth_card *card;
6493 struct ethhdr *eth;
6494
6495 card = qeth_get_card_from_dev(skb->dev);
6496 if (card->options.layer2)
6497 goto haveheader;
6498 #ifdef CONFIG_QETH_IPV6
6499 /* cause of the manipulated arp constructor and the ARP
6500 flag for OSAE devices we have some nasty exceptions */
6501 if (card->info.type == QETH_CARD_TYPE_OSAE) {
6502 if (!card->options.fake_ll) {
6503 if ((skb->pkt_type==PACKET_OUTGOING) &&
6504 (skb->protocol==ETH_P_IPV6))
6505 goto haveheader;
6506 else
6507 return 0;
6508 } else {
6509 if ((skb->pkt_type==PACKET_OUTGOING) &&
6510 (skb->protocol==ETH_P_IP))
6511 return 0;
6512 else
6513 goto haveheader;
6514 }
6515 }
6516 #endif
6517 if (!card->options.fake_ll)
6518 return 0;
6519 haveheader:
6520 eth = eth_hdr(skb);
6521 memcpy(haddr, eth->h_source, ETH_ALEN);
6522 return ETH_ALEN;
6523 }
6524
6525 static int
6526 qeth_netdev_init(struct net_device *dev)
6527 {
6528 struct qeth_card *card;
6529
6530 card = (struct qeth_card *) dev->priv;
6531
6532 QETH_DBF_TEXT(trace,3,"initdev");
6533
6534 dev->tx_timeout = &qeth_tx_timeout;
6535 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6536 dev->open = qeth_open;
6537 dev->stop = qeth_stop;
6538 dev->hard_start_xmit = qeth_hard_start_xmit;
6539 dev->do_ioctl = qeth_do_ioctl;
6540 dev->get_stats = qeth_get_stats;
6541 dev->change_mtu = qeth_change_mtu;
6542 dev->neigh_setup = qeth_neigh_setup;
6543 dev->set_multicast_list = qeth_set_multicast_list;
6544 #ifdef CONFIG_QETH_VLAN
6545 dev->vlan_rx_register = qeth_vlan_rx_register;
6546 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6547 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6548 #endif
6549 if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6550 dev->rebuild_header = NULL;
6551 dev->hard_header = NULL;
6552 dev->header_cache_update = NULL;
6553 dev->hard_header_cache = NULL;
6554 }
6555 #ifdef CONFIG_QETH_IPV6
6556 /*IPv6 address autoconfiguration stuff*/
6557 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6558 card->dev->dev_id = card->info.unique_id & 0xffff;
6559 #endif
6560 if (card->options.fake_ll &&
6561 (qeth_get_netdev_flags(card) & IFF_NOARP))
6562 dev->hard_header = qeth_fake_header;
6563 if (dev->type == ARPHRD_IEEE802_TR)
6564 dev->hard_header_parse = NULL;
6565 else
6566 dev->hard_header_parse = qeth_hard_header_parse;
6567 dev->set_mac_address = qeth_layer2_set_mac_address;
6568 dev->flags |= qeth_get_netdev_flags(card);
6569 if ((card->options.fake_broadcast) ||
6570 (card->info.broadcast_capable))
6571 dev->flags |= IFF_BROADCAST;
6572 dev->hard_header_len =
6573 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6574 dev->addr_len = OSA_ADDR_LEN;
6575 dev->mtu = card->info.initial_mtu;
6576 if (card->info.type != QETH_CARD_TYPE_OSN)
6577 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6578 SET_MODULE_OWNER(dev);
6579 return 0;
6580 }
6581
6582 static void
6583 qeth_init_func_level(struct qeth_card *card)
6584 {
6585 if (card->ipato.enabled) {
6586 if (card->info.type == QETH_CARD_TYPE_IQD)
6587 card->info.func_level =
6588 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6589 else
6590 card->info.func_level =
6591 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6592 } else {
6593 if (card->info.type == QETH_CARD_TYPE_IQD)
6594 /*FIXME:why do we have same values for dis and ena for osae??? */
6595 card->info.func_level =
6596 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6597 else
6598 card->info.func_level =
6599 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6600 }
6601 }
6602
6603 /**
6604 * hardsetup card, initialize MPC and QDIO stuff
6605 */
6606 static int
6607 qeth_hardsetup_card(struct qeth_card *card)
6608 {
6609 int retries = 3;
6610 int rc;
6611
6612 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6613
6614 atomic_set(&card->force_alloc_skb, 0);
6615 retry:
6616 if (retries < 3){
6617 PRINT_WARN("Retrying to do IDX activates.\n");
6618 ccw_device_set_offline(CARD_DDEV(card));
6619 ccw_device_set_offline(CARD_WDEV(card));
6620 ccw_device_set_offline(CARD_RDEV(card));
6621 ccw_device_set_online(CARD_RDEV(card));
6622 ccw_device_set_online(CARD_WDEV(card));
6623 ccw_device_set_online(CARD_DDEV(card));
6624 }
6625 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6626 if (rc == -ERESTARTSYS) {
6627 QETH_DBF_TEXT(setup, 2, "break1");
6628 return rc;
6629 } else if (rc) {
6630 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6631 if (--retries < 0)
6632 goto out;
6633 else
6634 goto retry;
6635 }
6636 if ((rc = qeth_get_unitaddr(card))){
6637 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6638 return rc;
6639 }
6640 qeth_init_tokens(card);
6641 qeth_init_func_level(card);
6642 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6643 if (rc == -ERESTARTSYS) {
6644 QETH_DBF_TEXT(setup, 2, "break2");
6645 return rc;
6646 } else if (rc) {
6647 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6648 if (--retries < 0)
6649 goto out;
6650 else
6651 goto retry;
6652 }
6653 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6654 if (rc == -ERESTARTSYS) {
6655 QETH_DBF_TEXT(setup, 2, "break3");
6656 return rc;
6657 } else if (rc) {
6658 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6659 if (--retries < 0)
6660 goto out;
6661 else
6662 goto retry;
6663 }
6664 if ((rc = qeth_mpc_initialize(card))){
6665 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6666 goto out;
6667 }
6668 /*network device will be recovered*/
6669 if (card->dev) {
6670 card->dev->hard_header = card->orig_hard_header;
6671 if (card->options.fake_ll &&
6672 (qeth_get_netdev_flags(card) & IFF_NOARP))
6673 card->dev->hard_header = qeth_fake_header;
6674 return 0;
6675 }
6676 /* at first set_online allocate netdev */
6677 card->dev = qeth_get_netdevice(card->info.type,
6678 card->info.link_type);
6679 if (!card->dev){
6680 qeth_qdio_clear_card(card, card->info.type !=
6681 QETH_CARD_TYPE_IQD);
6682 rc = -ENODEV;
6683 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6684 goto out;
6685 }
6686 card->dev->priv = card;
6687 card->orig_hard_header = card->dev->hard_header;
6688 card->dev->type = qeth_get_arphdr_type(card->info.type,
6689 card->info.link_type);
6690 card->dev->init = qeth_netdev_init;
6691 return 0;
6692 out:
6693 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6694 return rc;
6695 }
6696
6697 static int
6698 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6699 unsigned long data)
6700 {
6701 struct qeth_ipa_cmd *cmd;
6702
6703 QETH_DBF_TEXT(trace,4,"defadpcb");
6704
6705 cmd = (struct qeth_ipa_cmd *) data;
6706 if (cmd->hdr.return_code == 0){
6707 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6708 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6709 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6710 #ifdef CONFIG_QETH_IPV6
6711 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6712 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6713 #endif
6714 }
6715 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6716 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6717 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6718 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6719 }
6720 return 0;
6721 }
6722
6723 static int
6724 qeth_default_setadapterparms_cb(struct qeth_card *card,
6725 struct qeth_reply *reply,
6726 unsigned long data)
6727 {
6728 struct qeth_ipa_cmd *cmd;
6729
6730 QETH_DBF_TEXT(trace,4,"defadpcb");
6731
6732 cmd = (struct qeth_ipa_cmd *) data;
6733 if (cmd->hdr.return_code == 0)
6734 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6735 return 0;
6736 }
6737
6738
6739
6740 static int
6741 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6742 unsigned long data)
6743 {
6744 struct qeth_ipa_cmd *cmd;
6745
6746 QETH_DBF_TEXT(trace,3,"quyadpcb");
6747
6748 cmd = (struct qeth_ipa_cmd *) data;
6749 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6750 card->info.link_type =
6751 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6752 card->options.adp.supported_funcs =
6753 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6754 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6755 }
6756
6757 static int
6758 qeth_query_setadapterparms(struct qeth_card *card)
6759 {
6760 int rc;
6761 struct qeth_cmd_buffer *iob;
6762
6763 QETH_DBF_TEXT(trace,3,"queryadp");
6764 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6765 sizeof(struct qeth_ipacmd_setadpparms));
6766 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6767 return rc;
6768 }
6769
6770 static int
6771 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6772 struct qeth_reply *reply,
6773 unsigned long data)
6774 {
6775 struct qeth_ipa_cmd *cmd;
6776
6777 QETH_DBF_TEXT(trace,4,"chgmaccb");
6778
6779 cmd = (struct qeth_ipa_cmd *) data;
6780 if (!card->options.layer2 ||
6781 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6782 memcpy(card->dev->dev_addr,
6783 &cmd->data.setadapterparms.data.change_addr.addr,
6784 OSA_ADDR_LEN);
6785 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6786 }
6787 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6788 return 0;
6789 }
6790
6791 static int
6792 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6793 {
6794 int rc;
6795 struct qeth_cmd_buffer *iob;
6796 struct qeth_ipa_cmd *cmd;
6797
6798 QETH_DBF_TEXT(trace,4,"chgmac");
6799
6800 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6801 sizeof(struct qeth_ipacmd_setadpparms));
6802 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6803 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6804 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6805 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6806 card->dev->dev_addr, OSA_ADDR_LEN);
6807 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6808 NULL);
6809 return rc;
6810 }
6811
6812 static int
6813 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6814 {
6815 int rc;
6816 struct qeth_cmd_buffer *iob;
6817 struct qeth_ipa_cmd *cmd;
6818
6819 QETH_DBF_TEXT(trace,4,"adpmode");
6820
6821 iob = qeth_get_adapter_cmd(card, command,
6822 sizeof(struct qeth_ipacmd_setadpparms));
6823 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6824 cmd->data.setadapterparms.data.mode = mode;
6825 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6826 NULL);
6827 return rc;
6828 }
6829
6830 static int
6831 qeth_setadapter_hstr(struct qeth_card *card)
6832 {
6833 int rc;
6834
6835 QETH_DBF_TEXT(trace,4,"adphstr");
6836
6837 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6838 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6839 card->options.broadcast_mode);
6840 if (rc)
6841 PRINT_WARN("couldn't set broadcast mode on "
6842 "device %s: x%x\n",
6843 CARD_BUS_ID(card), rc);
6844 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6845 card->options.macaddr_mode);
6846 if (rc)
6847 PRINT_WARN("couldn't set macaddr mode on "
6848 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6849 return rc;
6850 }
6851 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6852 PRINT_WARN("set adapter parameters not available "
6853 "to set broadcast mode, using ALLRINGS "
6854 "on device %s:\n", CARD_BUS_ID(card));
6855 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6856 PRINT_WARN("set adapter parameters not available "
6857 "to set macaddr mode, using NONCANONICAL "
6858 "on device %s:\n", CARD_BUS_ID(card));
6859 return 0;
6860 }
6861
6862 static int
6863 qeth_setadapter_parms(struct qeth_card *card)
6864 {
6865 int rc;
6866
6867 QETH_DBF_TEXT(setup, 2, "setadprm");
6868
6869 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6870 PRINT_WARN("set adapter parameters not supported "
6871 "on device %s.\n",
6872 CARD_BUS_ID(card));
6873 QETH_DBF_TEXT(setup, 2, " notsupp");
6874 return 0;
6875 }
6876 rc = qeth_query_setadapterparms(card);
6877 if (rc) {
6878 PRINT_WARN("couldn't set adapter parameters on device %s: "
6879 "x%x\n", CARD_BUS_ID(card), rc);
6880 return rc;
6881 }
6882 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6883 rc = qeth_setadpparms_change_macaddr(card);
6884 if (rc)
6885 PRINT_WARN("couldn't get MAC address on "
6886 "device %s: x%x\n",
6887 CARD_BUS_ID(card), rc);
6888 }
6889
6890 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6891 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6892 rc = qeth_setadapter_hstr(card);
6893
6894 return rc;
6895 }
6896
6897 static int
6898 qeth_layer2_initialize(struct qeth_card *card)
6899 {
6900 int rc = 0;
6901
6902
6903 QETH_DBF_TEXT(setup, 2, "doL2init");
6904 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6905
6906 rc = qeth_query_setadapterparms(card);
6907 if (rc) {
6908 PRINT_WARN("could not query adapter parameters on device %s: "
6909 "x%x\n", CARD_BUS_ID(card), rc);
6910 }
6911
6912 rc = qeth_setadpparms_change_macaddr(card);
6913 if (rc) {
6914 PRINT_WARN("couldn't get MAC address on "
6915 "device %s: x%x\n",
6916 CARD_BUS_ID(card), rc);
6917 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6918 return rc;
6919 }
6920 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6921
6922 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6923 if (rc)
6924 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6925 return 0;
6926 }
6927
6928
6929 static int
6930 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6931 enum qeth_prot_versions prot)
6932 {
6933 int rc;
6934 struct qeth_cmd_buffer *iob;
6935
6936 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6937 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6938
6939 return rc;
6940 }
6941
6942 static int
6943 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6944 {
6945 int rc;
6946
6947 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6948
6949 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6950 return rc;
6951 }
6952
6953 static int
6954 qeth_send_stoplan(struct qeth_card *card)
6955 {
6956 int rc = 0;
6957
6958 /*
6959 * TODO: according to the IPA format document page 14,
6960 * TCP/IP (we!) never issue a STOPLAN
6961 * is this right ?!?
6962 */
6963 QETH_DBF_TEXT(trace, 2, "stoplan");
6964
6965 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6966 return rc;
6967 }
6968
6969 static int
6970 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6971 unsigned long data)
6972 {
6973 struct qeth_ipa_cmd *cmd;
6974
6975 QETH_DBF_TEXT(setup, 2, "qipasscb");
6976
6977 cmd = (struct qeth_ipa_cmd *) data;
6978 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6979 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6980 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6981 /* Disable IPV6 support hard coded for Hipersockets */
6982 if(card->info.type == QETH_CARD_TYPE_IQD)
6983 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6984 } else {
6985 #ifdef CONFIG_QETH_IPV6
6986 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6987 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6988 #endif
6989 }
6990 QETH_DBF_TEXT(setup, 2, "suppenbl");
6991 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6992 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6993 return 0;
6994 }
6995
6996 static int
6997 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6998 {
6999 int rc;
7000 struct qeth_cmd_buffer *iob;
7001
7002 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
7003 if (card->options.layer2) {
7004 QETH_DBF_TEXT(setup, 2, "noprmly2");
7005 return -EPERM;
7006 }
7007
7008 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
7009 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
7010 return rc;
7011 }
7012
7013 static struct qeth_cmd_buffer *
7014 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
7015 __u16 cmd_code, __u16 len,
7016 enum qeth_prot_versions prot)
7017 {
7018 struct qeth_cmd_buffer *iob;
7019 struct qeth_ipa_cmd *cmd;
7020
7021 QETH_DBF_TEXT(trace,4,"getasscm");
7022 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
7023
7024 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7025 cmd->data.setassparms.hdr.assist_no = ipa_func;
7026 cmd->data.setassparms.hdr.length = 8 + len;
7027 cmd->data.setassparms.hdr.command_code = cmd_code;
7028 cmd->data.setassparms.hdr.return_code = 0;
7029 cmd->data.setassparms.hdr.seq_no = 0;
7030
7031 return iob;
7032 }
7033
7034 static int
7035 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
7036 __u16 len, long data,
7037 int (*reply_cb)
7038 (struct qeth_card *,struct qeth_reply *,unsigned long),
7039 void *reply_param)
7040 {
7041 int rc;
7042 struct qeth_ipa_cmd *cmd;
7043
7044 QETH_DBF_TEXT(trace,4,"sendassp");
7045
7046 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7047 if (len <= sizeof(__u32))
7048 cmd->data.setassparms.data.flags_32bit = (__u32) data;
7049 else /* (len > sizeof(__u32)) */
7050 memcpy(&cmd->data.setassparms.data, (void *) data, len);
7051
7052 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
7053 return rc;
7054 }
7055
7056 #ifdef CONFIG_QETH_IPV6
7057 static int
7058 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
7059 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
7060
7061 {
7062 int rc;
7063 struct qeth_cmd_buffer *iob;
7064
7065 QETH_DBF_TEXT(trace,4,"simassp6");
7066 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7067 0, QETH_PROT_IPV6);
7068 rc = qeth_send_setassparms(card, iob, 0, 0,
7069 qeth_default_setassparms_cb, NULL);
7070 return rc;
7071 }
7072 #endif
7073
7074 static int
7075 qeth_send_simple_setassparms(struct qeth_card *card,
7076 enum qeth_ipa_funcs ipa_func,
7077 __u16 cmd_code, long data)
7078 {
7079 int rc;
7080 int length = 0;
7081 struct qeth_cmd_buffer *iob;
7082
7083 QETH_DBF_TEXT(trace,4,"simassp4");
7084 if (data)
7085 length = sizeof(__u32);
7086 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7087 length, QETH_PROT_IPV4);
7088 rc = qeth_send_setassparms(card, iob, length, data,
7089 qeth_default_setassparms_cb, NULL);
7090 return rc;
7091 }
7092
7093 static int
7094 qeth_start_ipa_arp_processing(struct qeth_card *card)
7095 {
7096 int rc;
7097
7098 QETH_DBF_TEXT(trace,3,"ipaarp");
7099
7100 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
7101 PRINT_WARN("ARP processing not supported "
7102 "on %s!\n", QETH_CARD_IFNAME(card));
7103 return 0;
7104 }
7105 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
7106 IPA_CMD_ASS_START, 0);
7107 if (rc) {
7108 PRINT_WARN("Could not start ARP processing "
7109 "assist on %s: 0x%x\n",
7110 QETH_CARD_IFNAME(card), rc);
7111 }
7112 return rc;
7113 }
7114
7115 static int
7116 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
7117 {
7118 int rc;
7119
7120 QETH_DBF_TEXT(trace,3,"ipaipfrg");
7121
7122 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
7123 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
7124 QETH_CARD_IFNAME(card));
7125 return -EOPNOTSUPP;
7126 }
7127
7128 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
7129 IPA_CMD_ASS_START, 0);
7130 if (rc) {
7131 PRINT_WARN("Could not start Hardware IP fragmentation "
7132 "assist on %s: 0x%x\n",
7133 QETH_CARD_IFNAME(card), rc);
7134 } else
7135 PRINT_INFO("Hardware IP fragmentation enabled \n");
7136 return rc;
7137 }
7138
7139 static int
7140 qeth_start_ipa_source_mac(struct qeth_card *card)
7141 {
7142 int rc;
7143
7144 QETH_DBF_TEXT(trace,3,"stsrcmac");
7145
7146 if (!card->options.fake_ll)
7147 return -EOPNOTSUPP;
7148
7149 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7150 PRINT_INFO("Inbound source address not "
7151 "supported on %s\n", QETH_CARD_IFNAME(card));
7152 return -EOPNOTSUPP;
7153 }
7154
7155 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7156 IPA_CMD_ASS_START, 0);
7157 if (rc)
7158 PRINT_WARN("Could not start inbound source "
7159 "assist on %s: 0x%x\n",
7160 QETH_CARD_IFNAME(card), rc);
7161 return rc;
7162 }
7163
7164 static int
7165 qeth_start_ipa_vlan(struct qeth_card *card)
7166 {
7167 int rc = 0;
7168
7169 QETH_DBF_TEXT(trace,3,"strtvlan");
7170
7171 #ifdef CONFIG_QETH_VLAN
7172 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7173 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7174 return -EOPNOTSUPP;
7175 }
7176
7177 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7178 IPA_CMD_ASS_START,0);
7179 if (rc) {
7180 PRINT_WARN("Could not start vlan "
7181 "assist on %s: 0x%x\n",
7182 QETH_CARD_IFNAME(card), rc);
7183 } else {
7184 PRINT_INFO("VLAN enabled \n");
7185 card->dev->features |=
7186 NETIF_F_HW_VLAN_FILTER |
7187 NETIF_F_HW_VLAN_TX |
7188 NETIF_F_HW_VLAN_RX;
7189 }
7190 #endif /* QETH_VLAN */
7191 return rc;
7192 }
7193
7194 static int
7195 qeth_start_ipa_multicast(struct qeth_card *card)
7196 {
7197 int rc;
7198
7199 QETH_DBF_TEXT(trace,3,"stmcast");
7200
7201 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7202 PRINT_WARN("Multicast not supported on %s\n",
7203 QETH_CARD_IFNAME(card));
7204 return -EOPNOTSUPP;
7205 }
7206
7207 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7208 IPA_CMD_ASS_START,0);
7209 if (rc) {
7210 PRINT_WARN("Could not start multicast "
7211 "assist on %s: rc=%i\n",
7212 QETH_CARD_IFNAME(card), rc);
7213 } else {
7214 PRINT_INFO("Multicast enabled\n");
7215 card->dev->flags |= IFF_MULTICAST;
7216 }
7217 return rc;
7218 }
7219
7220 #ifdef CONFIG_QETH_IPV6
7221 static int
7222 qeth_softsetup_ipv6(struct qeth_card *card)
7223 {
7224 int rc;
7225
7226 QETH_DBF_TEXT(trace,3,"softipv6");
7227
7228 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7229 if (rc) {
7230 PRINT_ERR("IPv6 startlan failed on %s\n",
7231 QETH_CARD_IFNAME(card));
7232 return rc;
7233 }
7234 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7235 if (rc) {
7236 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7237 QETH_CARD_IFNAME(card));
7238 return rc;
7239 }
7240 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7241 IPA_CMD_ASS_START, 3);
7242 if (rc) {
7243 PRINT_WARN("IPv6 start assist (version 4) failed "
7244 "on %s: 0x%x\n",
7245 QETH_CARD_IFNAME(card), rc);
7246 return rc;
7247 }
7248 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7249 IPA_CMD_ASS_START);
7250 if (rc) {
7251 PRINT_WARN("IPV6 start assist (version 6) failed "
7252 "on %s: 0x%x\n",
7253 QETH_CARD_IFNAME(card), rc);
7254 return rc;
7255 }
7256 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7257 IPA_CMD_ASS_START);
7258 if (rc) {
7259 PRINT_WARN("Could not enable passthrough "
7260 "on %s: 0x%x\n",
7261 QETH_CARD_IFNAME(card), rc);
7262 return rc;
7263 }
7264 PRINT_INFO("IPV6 enabled \n");
7265 return 0;
7266 }
7267
7268 #endif
7269
7270 static int
7271 qeth_start_ipa_ipv6(struct qeth_card *card)
7272 {
7273 int rc = 0;
7274 #ifdef CONFIG_QETH_IPV6
7275 QETH_DBF_TEXT(trace,3,"strtipv6");
7276
7277 if (!qeth_is_supported(card, IPA_IPV6)) {
7278 PRINT_WARN("IPv6 not supported on %s\n",
7279 QETH_CARD_IFNAME(card));
7280 return 0;
7281 }
7282 rc = qeth_softsetup_ipv6(card);
7283 #endif
7284 return rc ;
7285 }
7286
7287 static int
7288 qeth_start_ipa_broadcast(struct qeth_card *card)
7289 {
7290 int rc;
7291
7292 QETH_DBF_TEXT(trace,3,"stbrdcst");
7293 card->info.broadcast_capable = 0;
7294 if (!qeth_is_supported(card, IPA_FILTERING)) {
7295 PRINT_WARN("Broadcast not supported on %s\n",
7296 QETH_CARD_IFNAME(card));
7297 rc = -EOPNOTSUPP;
7298 goto out;
7299 }
7300 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7301 IPA_CMD_ASS_START, 0);
7302 if (rc) {
7303 PRINT_WARN("Could not enable broadcasting filtering "
7304 "on %s: 0x%x\n",
7305 QETH_CARD_IFNAME(card), rc);
7306 goto out;
7307 }
7308
7309 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7310 IPA_CMD_ASS_CONFIGURE, 1);
7311 if (rc) {
7312 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7313 QETH_CARD_IFNAME(card), rc);
7314 goto out;
7315 }
7316 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7317 PRINT_INFO("Broadcast enabled \n");
7318 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7319 IPA_CMD_ASS_ENABLE, 1);
7320 if (rc) {
7321 PRINT_WARN("Could not set up broadcast echo filtering on "
7322 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7323 goto out;
7324 }
7325 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7326 out:
7327 if (card->info.broadcast_capable)
7328 card->dev->flags |= IFF_BROADCAST;
7329 else
7330 card->dev->flags &= ~IFF_BROADCAST;
7331 return rc;
7332 }
7333
7334 static int
7335 qeth_send_checksum_command(struct qeth_card *card)
7336 {
7337 int rc;
7338
7339 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7340 IPA_CMD_ASS_START, 0);
7341 if (rc) {
7342 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7343 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7344 QETH_CARD_IFNAME(card), rc);
7345 return rc;
7346 }
7347 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7348 IPA_CMD_ASS_ENABLE,
7349 card->info.csum_mask);
7350 if (rc) {
7351 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7352 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7353 QETH_CARD_IFNAME(card), rc);
7354 return rc;
7355 }
7356 return 0;
7357 }
7358
7359 static int
7360 qeth_start_ipa_checksum(struct qeth_card *card)
7361 {
7362 int rc = 0;
7363
7364 QETH_DBF_TEXT(trace,3,"strtcsum");
7365
7366 if (card->options.checksum_type == NO_CHECKSUMMING) {
7367 PRINT_WARN("Using no checksumming on %s.\n",
7368 QETH_CARD_IFNAME(card));
7369 return 0;
7370 }
7371 if (card->options.checksum_type == SW_CHECKSUMMING) {
7372 PRINT_WARN("Using SW checksumming on %s.\n",
7373 QETH_CARD_IFNAME(card));
7374 return 0;
7375 }
7376 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7377 PRINT_WARN("Inbound HW Checksumming not "
7378 "supported on %s,\ncontinuing "
7379 "using Inbound SW Checksumming\n",
7380 QETH_CARD_IFNAME(card));
7381 card->options.checksum_type = SW_CHECKSUMMING;
7382 return 0;
7383 }
7384 rc = qeth_send_checksum_command(card);
7385 if (!rc) {
7386 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7387 }
7388 return rc;
7389 }
7390
7391 static int
7392 qeth_start_ipa_tso(struct qeth_card *card)
7393 {
7394 int rc;
7395
7396 QETH_DBF_TEXT(trace,3,"sttso");
7397
7398 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7399 PRINT_WARN("Outbound TSO not supported on %s\n",
7400 QETH_CARD_IFNAME(card));
7401 rc = -EOPNOTSUPP;
7402 } else {
7403 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7404 IPA_CMD_ASS_START,0);
7405 if (rc)
7406 PRINT_WARN("Could not start outbound TSO "
7407 "assist on %s: rc=%i\n",
7408 QETH_CARD_IFNAME(card), rc);
7409 else
7410 PRINT_INFO("Outbound TSO enabled\n");
7411 }
7412 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7413 card->options.large_send = QETH_LARGE_SEND_NO;
7414 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7415 }
7416 return rc;
7417 }
7418
7419 static int
7420 qeth_start_ipassists(struct qeth_card *card)
7421 {
7422 QETH_DBF_TEXT(trace,3,"strtipas");
7423 qeth_start_ipa_arp_processing(card); /* go on*/
7424 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7425 qeth_start_ipa_source_mac(card); /* go on*/
7426 qeth_start_ipa_vlan(card); /* go on*/
7427 qeth_start_ipa_multicast(card); /* go on*/
7428 qeth_start_ipa_ipv6(card); /* go on*/
7429 qeth_start_ipa_broadcast(card); /* go on*/
7430 qeth_start_ipa_checksum(card); /* go on*/
7431 qeth_start_ipa_tso(card); /* go on*/
7432 return 0;
7433 }
7434
7435 static int
7436 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7437 enum qeth_prot_versions prot)
7438 {
7439 int rc;
7440 struct qeth_ipa_cmd *cmd;
7441 struct qeth_cmd_buffer *iob;
7442
7443 QETH_DBF_TEXT(trace,4,"setroutg");
7444 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7445 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7446 cmd->data.setrtg.type = (type);
7447 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7448
7449 return rc;
7450
7451 }
7452
7453 static void
7454 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7455 enum qeth_prot_versions prot)
7456 {
7457 if (card->info.type == QETH_CARD_TYPE_IQD) {
7458 switch (*type) {
7459 case NO_ROUTER:
7460 case PRIMARY_CONNECTOR:
7461 case SECONDARY_CONNECTOR:
7462 case MULTICAST_ROUTER:
7463 return;
7464 default:
7465 goto out_inval;
7466 }
7467 } else {
7468 switch (*type) {
7469 case NO_ROUTER:
7470 case PRIMARY_ROUTER:
7471 case SECONDARY_ROUTER:
7472 return;
7473 case MULTICAST_ROUTER:
7474 if (qeth_is_ipafunc_supported(card, prot,
7475 IPA_OSA_MC_ROUTER))
7476 return;
7477 default:
7478 goto out_inval;
7479 }
7480 }
7481 out_inval:
7482 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7483 "Router status set to 'no router'.\n",
7484 ((*type == PRIMARY_ROUTER)? "primary router" :
7485 (*type == SECONDARY_ROUTER)? "secondary router" :
7486 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7487 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7488 (*type == MULTICAST_ROUTER)? "multicast router" :
7489 "unknown"),
7490 card->dev->name);
7491 *type = NO_ROUTER;
7492 }
7493
7494 int
7495 qeth_setrouting_v4(struct qeth_card *card)
7496 {
7497 int rc;
7498
7499 QETH_DBF_TEXT(trace,3,"setrtg4");
7500
7501 qeth_correct_routing_type(card, &card->options.route4.type,
7502 QETH_PROT_IPV4);
7503
7504 rc = qeth_send_setrouting(card, card->options.route4.type,
7505 QETH_PROT_IPV4);
7506 if (rc) {
7507 card->options.route4.type = NO_ROUTER;
7508 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7509 "Type set to 'no router'.\n",
7510 rc, QETH_CARD_IFNAME(card));
7511 }
7512 return rc;
7513 }
7514
7515 int
7516 qeth_setrouting_v6(struct qeth_card *card)
7517 {
7518 int rc = 0;
7519
7520 QETH_DBF_TEXT(trace,3,"setrtg6");
7521 #ifdef CONFIG_QETH_IPV6
7522
7523 if (!qeth_is_supported(card, IPA_IPV6))
7524 return 0;
7525 qeth_correct_routing_type(card, &card->options.route6.type,
7526 QETH_PROT_IPV6);
7527
7528 rc = qeth_send_setrouting(card, card->options.route6.type,
7529 QETH_PROT_IPV6);
7530 if (rc) {
7531 card->options.route6.type = NO_ROUTER;
7532 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7533 "Type set to 'no router'.\n",
7534 rc, QETH_CARD_IFNAME(card));
7535 }
7536 #endif
7537 return rc;
7538 }
7539
7540 int
7541 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7542 {
7543 int rc = 0;
7544
7545 if (card->dev == NULL) {
7546 card->options.large_send = type;
7547 return 0;
7548 }
7549 if (card->state == CARD_STATE_UP)
7550 netif_tx_disable(card->dev);
7551 card->options.large_send = type;
7552 switch (card->options.large_send) {
7553 case QETH_LARGE_SEND_EDDP:
7554 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7555 break;
7556 case QETH_LARGE_SEND_TSO:
7557 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7558 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7559 } else {
7560 PRINT_WARN("TSO not supported on %s. "
7561 "large_send set to 'no'.\n",
7562 card->dev->name);
7563 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7564 card->options.large_send = QETH_LARGE_SEND_NO;
7565 rc = -EOPNOTSUPP;
7566 }
7567 break;
7568 default: /* includes QETH_LARGE_SEND_NO */
7569 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7570 break;
7571 }
7572 if (card->state == CARD_STATE_UP)
7573 netif_wake_queue(card->dev);
7574 return rc;
7575 }
7576
7577 /*
7578 * softsetup card: init IPA stuff
7579 */
7580 static int
7581 qeth_softsetup_card(struct qeth_card *card)
7582 {
7583 int rc;
7584
7585 QETH_DBF_TEXT(setup, 2, "softsetp");
7586
7587 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7588 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7589 if (rc == 0xe080){
7590 PRINT_WARN("LAN on card %s if offline! "
7591 "Waiting for STARTLAN from card.\n",
7592 CARD_BUS_ID(card));
7593 card->lan_online = 0;
7594 }
7595 return rc;
7596 } else
7597 card->lan_online = 1;
7598 if (card->info.type==QETH_CARD_TYPE_OSN)
7599 goto out;
7600 qeth_set_large_send(card, card->options.large_send);
7601 if (card->options.layer2) {
7602 card->dev->features |=
7603 NETIF_F_HW_VLAN_FILTER |
7604 NETIF_F_HW_VLAN_TX |
7605 NETIF_F_HW_VLAN_RX;
7606 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7607 card->info.broadcast_capable=1;
7608 if ((rc = qeth_layer2_initialize(card))) {
7609 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7610 return rc;
7611 }
7612 #ifdef CONFIG_QETH_VLAN
7613 qeth_layer2_process_vlans(card, 0);
7614 #endif
7615 goto out;
7616 }
7617 if ((rc = qeth_setadapter_parms(card)))
7618 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7619 if ((rc = qeth_start_ipassists(card)))
7620 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7621 if ((rc = qeth_setrouting_v4(card)))
7622 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7623 if ((rc = qeth_setrouting_v6(card)))
7624 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7625 out:
7626 netif_tx_disable(card->dev);
7627 return 0;
7628 }
7629
7630 #ifdef CONFIG_QETH_IPV6
7631 static int
7632 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7633 unsigned long data)
7634 {
7635 struct qeth_ipa_cmd *cmd;
7636
7637 cmd = (struct qeth_ipa_cmd *) data;
7638 if (cmd->hdr.return_code == 0)
7639 card->info.unique_id = *((__u16 *)
7640 &cmd->data.create_destroy_addr.unique_id[6]);
7641 else {
7642 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7643 UNIQUE_ID_NOT_BY_CARD;
7644 PRINT_WARN("couldn't get a unique id from the card on device "
7645 "%s (result=x%x), using default id. ipv6 "
7646 "autoconfig on other lpars may lead to duplicate "
7647 "ip addresses. please use manually "
7648 "configured ones.\n",
7649 CARD_BUS_ID(card), cmd->hdr.return_code);
7650 }
7651 return 0;
7652 }
7653 #endif
7654
7655 static int
7656 qeth_put_unique_id(struct qeth_card *card)
7657 {
7658
7659 int rc = 0;
7660 #ifdef CONFIG_QETH_IPV6
7661 struct qeth_cmd_buffer *iob;
7662 struct qeth_ipa_cmd *cmd;
7663
7664 QETH_DBF_TEXT(trace,2,"puniqeid");
7665
7666 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7667 UNIQUE_ID_NOT_BY_CARD)
7668 return -1;
7669 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7670 QETH_PROT_IPV6);
7671 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7672 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7673 card->info.unique_id;
7674 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7675 card->dev->dev_addr, OSA_ADDR_LEN);
7676 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7677 #else
7678 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7679 UNIQUE_ID_NOT_BY_CARD;
7680 #endif
7681 return rc;
7682 }
7683
7684 /**
7685 * Clear IP List
7686 */
7687 static void
7688 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7689 {
7690 struct qeth_ipaddr *addr, *tmp;
7691 unsigned long flags;
7692
7693 QETH_DBF_TEXT(trace,4,"clearip");
7694 spin_lock_irqsave(&card->ip_lock, flags);
7695 /* clear todo list */
7696 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7697 list_del(&addr->entry);
7698 kfree(addr);
7699 }
7700
7701 while (!list_empty(&card->ip_list)) {
7702 addr = list_entry(card->ip_list.next,
7703 struct qeth_ipaddr, entry);
7704 list_del_init(&addr->entry);
7705 if (clean) {
7706 spin_unlock_irqrestore(&card->ip_lock, flags);
7707 qeth_deregister_addr_entry(card, addr);
7708 spin_lock_irqsave(&card->ip_lock, flags);
7709 }
7710 if (!recover || addr->is_multicast) {
7711 kfree(addr);
7712 continue;
7713 }
7714 list_add_tail(&addr->entry, card->ip_tbd_list);
7715 }
7716 spin_unlock_irqrestore(&card->ip_lock, flags);
7717 }
7718
7719 static void
7720 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7721 int clear_start_mask)
7722 {
7723 unsigned long flags;
7724
7725 spin_lock_irqsave(&card->thread_mask_lock, flags);
7726 card->thread_allowed_mask = threads;
7727 if (clear_start_mask)
7728 card->thread_start_mask &= threads;
7729 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7730 wake_up(&card->wait_q);
7731 }
7732
7733 static int
7734 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7735 {
7736 unsigned long flags;
7737 int rc = 0;
7738
7739 spin_lock_irqsave(&card->thread_mask_lock, flags);
7740 rc = (card->thread_running_mask & threads);
7741 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7742 return rc;
7743 }
7744
7745 static int
7746 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7747 {
7748 return wait_event_interruptible(card->wait_q,
7749 qeth_threads_running(card, threads) == 0);
7750 }
7751
7752 static int
7753 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7754 {
7755 int rc = 0;
7756
7757 QETH_DBF_TEXT(setup ,2,"stopcard");
7758 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7759
7760 qeth_set_allowed_threads(card, 0, 1);
7761 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7762 return -ERESTARTSYS;
7763 if (card->read.state == CH_STATE_UP &&
7764 card->write.state == CH_STATE_UP &&
7765 (card->state == CARD_STATE_UP)) {
7766 if (recovery_mode &&
7767 card->info.type != QETH_CARD_TYPE_OSN) {
7768 qeth_stop(card->dev);
7769 } else {
7770 rtnl_lock();
7771 dev_close(card->dev);
7772 rtnl_unlock();
7773 }
7774 if (!card->use_hard_stop) {
7775 __u8 *mac = &card->dev->dev_addr[0];
7776 rc = qeth_layer2_send_delmac(card, mac);
7777 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7778 if ((rc = qeth_send_stoplan(card)))
7779 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7780 }
7781 card->state = CARD_STATE_SOFTSETUP;
7782 }
7783 if (card->state == CARD_STATE_SOFTSETUP) {
7784 #ifdef CONFIG_QETH_VLAN
7785 if (card->options.layer2)
7786 qeth_layer2_process_vlans(card, 1);
7787 #endif
7788 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7789 qeth_clear_ipacmd_list(card);
7790 card->state = CARD_STATE_HARDSETUP;
7791 }
7792 if (card->state == CARD_STATE_HARDSETUP) {
7793 if ((!card->use_hard_stop) &&
7794 (!card->options.layer2))
7795 if ((rc = qeth_put_unique_id(card)))
7796 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7797 qeth_qdio_clear_card(card, 0);
7798 qeth_clear_qdio_buffers(card);
7799 qeth_clear_working_pool_list(card);
7800 card->state = CARD_STATE_DOWN;
7801 }
7802 if (card->state == CARD_STATE_DOWN) {
7803 qeth_clear_cmd_buffers(&card->read);
7804 qeth_clear_cmd_buffers(&card->write);
7805 }
7806 card->use_hard_stop = 0;
7807 return rc;
7808 }
7809
7810
7811 static int
7812 qeth_get_unique_id(struct qeth_card *card)
7813 {
7814 int rc = 0;
7815 #ifdef CONFIG_QETH_IPV6
7816 struct qeth_cmd_buffer *iob;
7817 struct qeth_ipa_cmd *cmd;
7818
7819 QETH_DBF_TEXT(setup, 2, "guniqeid");
7820
7821 if (!qeth_is_supported(card,IPA_IPV6)) {
7822 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7823 UNIQUE_ID_NOT_BY_CARD;
7824 return 0;
7825 }
7826
7827 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7828 QETH_PROT_IPV6);
7829 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7830 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7831 card->info.unique_id;
7832
7833 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7834 #else
7835 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7836 UNIQUE_ID_NOT_BY_CARD;
7837 #endif
7838 return rc;
7839 }
7840 static void
7841 qeth_print_status_with_portname(struct qeth_card *card)
7842 {
7843 char dbf_text[15];
7844 int i;
7845
7846 sprintf(dbf_text, "%s", card->info.portname + 1);
7847 for (i = 0; i < 8; i++)
7848 dbf_text[i] =
7849 (char) _ebcasc[(__u8) dbf_text[i]];
7850 dbf_text[8] = 0;
7851 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7852 "with link type %s (portname: %s)\n",
7853 CARD_RDEV_ID(card),
7854 CARD_WDEV_ID(card),
7855 CARD_DDEV_ID(card),
7856 qeth_get_cardname(card),
7857 (card->info.mcl_level[0]) ? " (level: " : "",
7858 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7859 (card->info.mcl_level[0]) ? ")" : "",
7860 qeth_get_cardname_short(card),
7861 dbf_text);
7862
7863 }
7864
7865 static void
7866 qeth_print_status_no_portname(struct qeth_card *card)
7867 {
7868 if (card->info.portname[0])
7869 printk("qeth: Device %s/%s/%s is a%s "
7870 "card%s%s%s\nwith link type %s "
7871 "(no portname needed by interface).\n",
7872 CARD_RDEV_ID(card),
7873 CARD_WDEV_ID(card),
7874 CARD_DDEV_ID(card),
7875 qeth_get_cardname(card),
7876 (card->info.mcl_level[0]) ? " (level: " : "",
7877 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7878 (card->info.mcl_level[0]) ? ")" : "",
7879 qeth_get_cardname_short(card));
7880 else
7881 printk("qeth: Device %s/%s/%s is a%s "
7882 "card%s%s%s\nwith link type %s.\n",
7883 CARD_RDEV_ID(card),
7884 CARD_WDEV_ID(card),
7885 CARD_DDEV_ID(card),
7886 qeth_get_cardname(card),
7887 (card->info.mcl_level[0]) ? " (level: " : "",
7888 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7889 (card->info.mcl_level[0]) ? ")" : "",
7890 qeth_get_cardname_short(card));
7891 }
7892
7893 static void
7894 qeth_print_status_message(struct qeth_card *card)
7895 {
7896 switch (card->info.type) {
7897 case QETH_CARD_TYPE_OSAE:
7898 /* VM will use a non-zero first character
7899 * to indicate a HiperSockets like reporting
7900 * of the level OSA sets the first character to zero
7901 * */
7902 if (!card->info.mcl_level[0]) {
7903 sprintf(card->info.mcl_level,"%02x%02x",
7904 card->info.mcl_level[2],
7905 card->info.mcl_level[3]);
7906
7907 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7908 break;
7909 }
7910 /* fallthrough */
7911 case QETH_CARD_TYPE_IQD:
7912 if (card->info.guestlan) {
7913 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7914 card->info.mcl_level[0]];
7915 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7916 card->info.mcl_level[1]];
7917 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7918 card->info.mcl_level[2]];
7919 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7920 card->info.mcl_level[3]];
7921 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7922 }
7923 break;
7924 default:
7925 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7926 }
7927 if (card->info.portname_required)
7928 qeth_print_status_with_portname(card);
7929 else
7930 qeth_print_status_no_portname(card);
7931 }
7932
7933 static int
7934 qeth_register_netdev(struct qeth_card *card)
7935 {
7936 QETH_DBF_TEXT(setup, 3, "regnetd");
7937 if (card->dev->reg_state != NETREG_UNINITIALIZED)
7938 return 0;
7939 /* sysfs magic */
7940 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7941 return register_netdev(card->dev);
7942 }
7943
7944 static void
7945 qeth_start_again(struct qeth_card *card, int recovery_mode)
7946 {
7947 QETH_DBF_TEXT(setup ,2, "startag");
7948
7949 if (recovery_mode &&
7950 card->info.type != QETH_CARD_TYPE_OSN) {
7951 qeth_open(card->dev);
7952 } else {
7953 rtnl_lock();
7954 dev_open(card->dev);
7955 rtnl_unlock();
7956 }
7957 /* this also sets saved unicast addresses */
7958 qeth_set_multicast_list(card->dev);
7959 }
7960
7961
7962 /* Layer 2 specific stuff */
7963 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7964 if (card->options.option == value) { \
7965 PRINT_ERR("%s not supported with layer 2 " \
7966 "functionality, ignoring option on read" \
7967 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7968 card->options.option = reset_value; \
7969 }
7970 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7971 if (card->options.option != value) { \
7972 PRINT_ERR("%s not supported with layer 2 " \
7973 "functionality, ignoring option on read" \
7974 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7975 card->options.option = reset_value; \
7976 }
7977
7978
7979 static void qeth_make_parameters_consistent(struct qeth_card *card)
7980 {
7981
7982 if (card->options.layer2 == 0)
7983 return;
7984 if (card->info.type == QETH_CARD_TYPE_OSN)
7985 return;
7986 if (card->info.type == QETH_CARD_TYPE_IQD) {
7987 PRINT_ERR("Device %s does not support layer 2 functionality." \
7988 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7989 card->options.layer2 = 0;
7990 return;
7991 }
7992 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7993 "Routing options are");
7994 #ifdef CONFIG_QETH_IPV6
7995 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7996 "Routing options are");
7997 #endif
7998 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7999 QETH_CHECKSUM_DEFAULT,
8000 "Checksumming options are");
8001 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
8002 QETH_TR_BROADCAST_ALLRINGS,
8003 "Broadcast mode options are");
8004 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
8005 QETH_TR_MACADDR_NONCANONICAL,
8006 "Canonical MAC addr options are");
8007 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
8008 "Broadcast faking options are");
8009 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
8010 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
8011 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
8012 }
8013
8014
8015 static int
8016 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
8017 {
8018 struct qeth_card *card = gdev->dev.driver_data;
8019 int rc = 0;
8020 enum qeth_card_states recover_flag;
8021
8022 BUG_ON(!card);
8023 QETH_DBF_TEXT(setup ,2, "setonlin");
8024 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
8025
8026 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
8027 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
8028 PRINT_WARN("set_online of card %s interrupted by user!\n",
8029 CARD_BUS_ID(card));
8030 return -ERESTARTSYS;
8031 }
8032
8033 recover_flag = card->state;
8034 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
8035 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
8036 (rc = ccw_device_set_online(CARD_DDEV(card)))){
8037 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
8038 return -EIO;
8039 }
8040
8041 qeth_make_parameters_consistent(card);
8042
8043 if ((rc = qeth_hardsetup_card(card))){
8044 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
8045 goto out_remove;
8046 }
8047 card->state = CARD_STATE_HARDSETUP;
8048
8049 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
8050 rc = qeth_get_unique_id(card);
8051
8052 if (rc && card->options.layer2 == 0) {
8053 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
8054 goto out_remove;
8055 }
8056 qeth_print_status_message(card);
8057 if ((rc = qeth_register_netdev(card))){
8058 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
8059 goto out_remove;
8060 }
8061 if ((rc = qeth_softsetup_card(card))){
8062 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
8063 goto out_remove;
8064 }
8065
8066 if ((rc = qeth_init_qdio_queues(card))){
8067 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
8068 goto out_remove;
8069 }
8070 card->state = CARD_STATE_SOFTSETUP;
8071 netif_carrier_on(card->dev);
8072
8073 qeth_set_allowed_threads(card, 0xffffffff, 0);
8074 if (recover_flag == CARD_STATE_RECOVER)
8075 qeth_start_again(card, recovery_mode);
8076 qeth_notify_processes();
8077 return 0;
8078 out_remove:
8079 card->use_hard_stop = 1;
8080 qeth_stop_card(card, 0);
8081 ccw_device_set_offline(CARD_DDEV(card));
8082 ccw_device_set_offline(CARD_WDEV(card));
8083 ccw_device_set_offline(CARD_RDEV(card));
8084 if (recover_flag == CARD_STATE_RECOVER)
8085 card->state = CARD_STATE_RECOVER;
8086 else
8087 card->state = CARD_STATE_DOWN;
8088 return -ENODEV;
8089 }
8090
8091 static int
8092 qeth_set_online(struct ccwgroup_device *gdev)
8093 {
8094 return __qeth_set_online(gdev, 0);
8095 }
8096
8097 static struct ccw_device_id qeth_ids[] = {
8098 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
8099 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
8100 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
8101 {},
8102 };
8103 MODULE_DEVICE_TABLE(ccw, qeth_ids);
8104
8105 struct device *qeth_root_dev = NULL;
8106
8107 struct ccwgroup_driver qeth_ccwgroup_driver = {
8108 .owner = THIS_MODULE,
8109 .name = "qeth",
8110 .driver_id = 0xD8C5E3C8,
8111 .probe = qeth_probe_device,
8112 .remove = qeth_remove_device,
8113 .set_online = qeth_set_online,
8114 .set_offline = qeth_set_offline,
8115 };
8116
8117 struct ccw_driver qeth_ccw_driver = {
8118 .name = "qeth",
8119 .ids = qeth_ids,
8120 .probe = ccwgroup_probe_ccwdev,
8121 .remove = ccwgroup_remove_ccwdev,
8122 };
8123
8124
8125 static void
8126 qeth_unregister_dbf_views(void)
8127 {
8128 if (qeth_dbf_setup)
8129 debug_unregister(qeth_dbf_setup);
8130 if (qeth_dbf_qerr)
8131 debug_unregister(qeth_dbf_qerr);
8132 if (qeth_dbf_sense)
8133 debug_unregister(qeth_dbf_sense);
8134 if (qeth_dbf_misc)
8135 debug_unregister(qeth_dbf_misc);
8136 if (qeth_dbf_data)
8137 debug_unregister(qeth_dbf_data);
8138 if (qeth_dbf_control)
8139 debug_unregister(qeth_dbf_control);
8140 if (qeth_dbf_trace)
8141 debug_unregister(qeth_dbf_trace);
8142 }
8143 static int
8144 qeth_register_dbf_views(void)
8145 {
8146 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8147 QETH_DBF_SETUP_PAGES,
8148 QETH_DBF_SETUP_NR_AREAS,
8149 QETH_DBF_SETUP_LEN);
8150 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8151 QETH_DBF_MISC_PAGES,
8152 QETH_DBF_MISC_NR_AREAS,
8153 QETH_DBF_MISC_LEN);
8154 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8155 QETH_DBF_DATA_PAGES,
8156 QETH_DBF_DATA_NR_AREAS,
8157 QETH_DBF_DATA_LEN);
8158 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8159 QETH_DBF_CONTROL_PAGES,
8160 QETH_DBF_CONTROL_NR_AREAS,
8161 QETH_DBF_CONTROL_LEN);
8162 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8163 QETH_DBF_SENSE_PAGES,
8164 QETH_DBF_SENSE_NR_AREAS,
8165 QETH_DBF_SENSE_LEN);
8166 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8167 QETH_DBF_QERR_PAGES,
8168 QETH_DBF_QERR_NR_AREAS,
8169 QETH_DBF_QERR_LEN);
8170 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8171 QETH_DBF_TRACE_PAGES,
8172 QETH_DBF_TRACE_NR_AREAS,
8173 QETH_DBF_TRACE_LEN);
8174
8175 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
8176 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
8177 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
8178 (qeth_dbf_trace == NULL)) {
8179 qeth_unregister_dbf_views();
8180 return -ENOMEM;
8181 }
8182 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8183 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8184
8185 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8186 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8187
8188 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8189 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8190
8191 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8192 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8193
8194 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8195 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8196
8197 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8198 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8199
8200 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8201 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8202
8203 return 0;
8204 }
8205
8206 #ifdef CONFIG_QETH_IPV6
8207 extern struct neigh_table arp_tbl;
8208 static struct neigh_ops *arp_direct_ops;
8209 static int (*qeth_old_arp_constructor) (struct neighbour *);
8210
8211 static struct neigh_ops arp_direct_ops_template = {
8212 .family = AF_INET,
8213 .solicit = NULL,
8214 .error_report = NULL,
8215 .output = dev_queue_xmit,
8216 .connected_output = dev_queue_xmit,
8217 .hh_output = dev_queue_xmit,
8218 .queue_xmit = dev_queue_xmit
8219 };
8220
8221 static int
8222 qeth_arp_constructor(struct neighbour *neigh)
8223 {
8224 struct net_device *dev = neigh->dev;
8225 struct in_device *in_dev;
8226 struct neigh_parms *parms;
8227 struct qeth_card *card;
8228
8229 card = qeth_get_card_from_dev(dev);
8230 if (card == NULL)
8231 goto out;
8232 if((card->options.layer2) ||
8233 (card->dev->hard_header == qeth_fake_header))
8234 goto out;
8235
8236 rcu_read_lock();
8237 in_dev = __in_dev_get_rcu(dev);
8238 if (in_dev == NULL) {
8239 rcu_read_unlock();
8240 return -EINVAL;
8241 }
8242
8243 parms = in_dev->arp_parms;
8244 __neigh_parms_put(neigh->parms);
8245 neigh->parms = neigh_parms_clone(parms);
8246 rcu_read_unlock();
8247
8248 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8249 neigh->nud_state = NUD_NOARP;
8250 neigh->ops = arp_direct_ops;
8251 neigh->output = neigh->ops->queue_xmit;
8252 return 0;
8253 out:
8254 return qeth_old_arp_constructor(neigh);
8255 }
8256 #endif /*CONFIG_QETH_IPV6*/
8257
8258 /*
8259 * IP address takeover related functions
8260 */
8261 static void
8262 qeth_clear_ipato_list(struct qeth_card *card)
8263 {
8264 struct qeth_ipato_entry *ipatoe, *tmp;
8265 unsigned long flags;
8266
8267 spin_lock_irqsave(&card->ip_lock, flags);
8268 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8269 list_del(&ipatoe->entry);
8270 kfree(ipatoe);
8271 }
8272 spin_unlock_irqrestore(&card->ip_lock, flags);
8273 }
8274
8275 int
8276 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8277 {
8278 struct qeth_ipato_entry *ipatoe;
8279 unsigned long flags;
8280 int rc = 0;
8281
8282 QETH_DBF_TEXT(trace, 2, "addipato");
8283 spin_lock_irqsave(&card->ip_lock, flags);
8284 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8285 if (ipatoe->proto != new->proto)
8286 continue;
8287 if (!memcmp(ipatoe->addr, new->addr,
8288 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8289 (ipatoe->mask_bits == new->mask_bits)){
8290 PRINT_WARN("ipato entry already exists!\n");
8291 rc = -EEXIST;
8292 break;
8293 }
8294 }
8295 if (!rc) {
8296 list_add_tail(&new->entry, &card->ipato.entries);
8297 }
8298 spin_unlock_irqrestore(&card->ip_lock, flags);
8299 return rc;
8300 }
8301
8302 void
8303 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8304 u8 *addr, int mask_bits)
8305 {
8306 struct qeth_ipato_entry *ipatoe, *tmp;
8307 unsigned long flags;
8308
8309 QETH_DBF_TEXT(trace, 2, "delipato");
8310 spin_lock_irqsave(&card->ip_lock, flags);
8311 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8312 if (ipatoe->proto != proto)
8313 continue;
8314 if (!memcmp(ipatoe->addr, addr,
8315 (proto == QETH_PROT_IPV4)? 4:16) &&
8316 (ipatoe->mask_bits == mask_bits)){
8317 list_del(&ipatoe->entry);
8318 kfree(ipatoe);
8319 }
8320 }
8321 spin_unlock_irqrestore(&card->ip_lock, flags);
8322 }
8323
8324 static void
8325 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8326 {
8327 int i, j;
8328 u8 octet;
8329
8330 for (i = 0; i < len; ++i){
8331 octet = addr[i];
8332 for (j = 7; j >= 0; --j){
8333 bits[i*8 + j] = octet & 1;
8334 octet >>= 1;
8335 }
8336 }
8337 }
8338
8339 static int
8340 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8341 {
8342 struct qeth_ipato_entry *ipatoe;
8343 u8 addr_bits[128] = {0, };
8344 u8 ipatoe_bits[128] = {0, };
8345 int rc = 0;
8346
8347 if (!card->ipato.enabled)
8348 return 0;
8349
8350 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8351 (addr->proto == QETH_PROT_IPV4)? 4:16);
8352 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8353 if (addr->proto != ipatoe->proto)
8354 continue;
8355 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8356 (ipatoe->proto==QETH_PROT_IPV4) ?
8357 4:16);
8358 if (addr->proto == QETH_PROT_IPV4)
8359 rc = !memcmp(addr_bits, ipatoe_bits,
8360 min(32, ipatoe->mask_bits));
8361 else
8362 rc = !memcmp(addr_bits, ipatoe_bits,
8363 min(128, ipatoe->mask_bits));
8364 if (rc)
8365 break;
8366 }
8367 /* invert? */
8368 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8369 rc = !rc;
8370 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8371 rc = !rc;
8372
8373 return rc;
8374 }
8375
8376 /*
8377 * VIPA related functions
8378 */
8379 int
8380 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8381 const u8 *addr)
8382 {
8383 struct qeth_ipaddr *ipaddr;
8384 unsigned long flags;
8385 int rc = 0;
8386
8387 ipaddr = qeth_get_addr_buffer(proto);
8388 if (ipaddr){
8389 if (proto == QETH_PROT_IPV4){
8390 QETH_DBF_TEXT(trace, 2, "addvipa4");
8391 memcpy(&ipaddr->u.a4.addr, addr, 4);
8392 ipaddr->u.a4.mask = 0;
8393 #ifdef CONFIG_QETH_IPV6
8394 } else if (proto == QETH_PROT_IPV6){
8395 QETH_DBF_TEXT(trace, 2, "addvipa6");
8396 memcpy(&ipaddr->u.a6.addr, addr, 16);
8397 ipaddr->u.a6.pfxlen = 0;
8398 #endif
8399 }
8400 ipaddr->type = QETH_IP_TYPE_VIPA;
8401 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8402 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8403 } else
8404 return -ENOMEM;
8405 spin_lock_irqsave(&card->ip_lock, flags);
8406 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8407 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8408 rc = -EEXIST;
8409 spin_unlock_irqrestore(&card->ip_lock, flags);
8410 if (rc){
8411 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8412 return rc;
8413 }
8414 if (!qeth_add_ip(card, ipaddr))
8415 kfree(ipaddr);
8416 qeth_set_ip_addr_list(card);
8417 return rc;
8418 }
8419
8420 void
8421 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8422 const u8 *addr)
8423 {
8424 struct qeth_ipaddr *ipaddr;
8425
8426 ipaddr = qeth_get_addr_buffer(proto);
8427 if (ipaddr){
8428 if (proto == QETH_PROT_IPV4){
8429 QETH_DBF_TEXT(trace, 2, "delvipa4");
8430 memcpy(&ipaddr->u.a4.addr, addr, 4);
8431 ipaddr->u.a4.mask = 0;
8432 #ifdef CONFIG_QETH_IPV6
8433 } else if (proto == QETH_PROT_IPV6){
8434 QETH_DBF_TEXT(trace, 2, "delvipa6");
8435 memcpy(&ipaddr->u.a6.addr, addr, 16);
8436 ipaddr->u.a6.pfxlen = 0;
8437 #endif
8438 }
8439 ipaddr->type = QETH_IP_TYPE_VIPA;
8440 } else
8441 return;
8442 if (!qeth_delete_ip(card, ipaddr))
8443 kfree(ipaddr);
8444 qeth_set_ip_addr_list(card);
8445 }
8446
8447 /*
8448 * proxy ARP related functions
8449 */
8450 int
8451 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8452 const u8 *addr)
8453 {
8454 struct qeth_ipaddr *ipaddr;
8455 unsigned long flags;
8456 int rc = 0;
8457
8458 ipaddr = qeth_get_addr_buffer(proto);
8459 if (ipaddr){
8460 if (proto == QETH_PROT_IPV4){
8461 QETH_DBF_TEXT(trace, 2, "addrxip4");
8462 memcpy(&ipaddr->u.a4.addr, addr, 4);
8463 ipaddr->u.a4.mask = 0;
8464 #ifdef CONFIG_QETH_IPV6
8465 } else if (proto == QETH_PROT_IPV6){
8466 QETH_DBF_TEXT(trace, 2, "addrxip6");
8467 memcpy(&ipaddr->u.a6.addr, addr, 16);
8468 ipaddr->u.a6.pfxlen = 0;
8469 #endif
8470 }
8471 ipaddr->type = QETH_IP_TYPE_RXIP;
8472 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8473 ipaddr->del_flags = 0;
8474 } else
8475 return -ENOMEM;
8476 spin_lock_irqsave(&card->ip_lock, flags);
8477 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8478 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8479 rc = -EEXIST;
8480 spin_unlock_irqrestore(&card->ip_lock, flags);
8481 if (rc){
8482 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8483 return rc;
8484 }
8485 if (!qeth_add_ip(card, ipaddr))
8486 kfree(ipaddr);
8487 qeth_set_ip_addr_list(card);
8488 return 0;
8489 }
8490
8491 void
8492 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8493 const u8 *addr)
8494 {
8495 struct qeth_ipaddr *ipaddr;
8496
8497 ipaddr = qeth_get_addr_buffer(proto);
8498 if (ipaddr){
8499 if (proto == QETH_PROT_IPV4){
8500 QETH_DBF_TEXT(trace, 2, "addrxip4");
8501 memcpy(&ipaddr->u.a4.addr, addr, 4);
8502 ipaddr->u.a4.mask = 0;
8503 #ifdef CONFIG_QETH_IPV6
8504 } else if (proto == QETH_PROT_IPV6){
8505 QETH_DBF_TEXT(trace, 2, "addrxip6");
8506 memcpy(&ipaddr->u.a6.addr, addr, 16);
8507 ipaddr->u.a6.pfxlen = 0;
8508 #endif
8509 }
8510 ipaddr->type = QETH_IP_TYPE_RXIP;
8511 } else
8512 return;
8513 if (!qeth_delete_ip(card, ipaddr))
8514 kfree(ipaddr);
8515 qeth_set_ip_addr_list(card);
8516 }
8517
8518 /**
8519 * IP event handler
8520 */
8521 static int
8522 qeth_ip_event(struct notifier_block *this,
8523 unsigned long event,void *ptr)
8524 {
8525 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8526 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8527 struct qeth_ipaddr *addr;
8528 struct qeth_card *card;
8529
8530 QETH_DBF_TEXT(trace,3,"ipevent");
8531 card = qeth_get_card_from_dev(dev);
8532 if (!card)
8533 return NOTIFY_DONE;
8534 if (card->options.layer2)
8535 return NOTIFY_DONE;
8536
8537 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8538 if (addr != NULL) {
8539 addr->u.a4.addr = ifa->ifa_address;
8540 addr->u.a4.mask = ifa->ifa_mask;
8541 addr->type = QETH_IP_TYPE_NORMAL;
8542 } else
8543 goto out;
8544
8545 switch(event) {
8546 case NETDEV_UP:
8547 if (!qeth_add_ip(card, addr))
8548 kfree(addr);
8549 break;
8550 case NETDEV_DOWN:
8551 if (!qeth_delete_ip(card, addr))
8552 kfree(addr);
8553 break;
8554 default:
8555 break;
8556 }
8557 qeth_set_ip_addr_list(card);
8558 out:
8559 return NOTIFY_DONE;
8560 }
8561
8562 static struct notifier_block qeth_ip_notifier = {
8563 qeth_ip_event,
8564 NULL,
8565 };
8566
8567 #ifdef CONFIG_QETH_IPV6
8568 /**
8569 * IPv6 event handler
8570 */
8571 static int
8572 qeth_ip6_event(struct notifier_block *this,
8573 unsigned long event,void *ptr)
8574 {
8575
8576 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8577 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8578 struct qeth_ipaddr *addr;
8579 struct qeth_card *card;
8580
8581 QETH_DBF_TEXT(trace,3,"ip6event");
8582
8583 card = qeth_get_card_from_dev(dev);
8584 if (!card)
8585 return NOTIFY_DONE;
8586 if (!qeth_is_supported(card, IPA_IPV6))
8587 return NOTIFY_DONE;
8588
8589 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8590 if (addr != NULL) {
8591 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8592 addr->u.a6.pfxlen = ifa->prefix_len;
8593 addr->type = QETH_IP_TYPE_NORMAL;
8594 } else
8595 goto out;
8596
8597 switch(event) {
8598 case NETDEV_UP:
8599 if (!qeth_add_ip(card, addr))
8600 kfree(addr);
8601 break;
8602 case NETDEV_DOWN:
8603 if (!qeth_delete_ip(card, addr))
8604 kfree(addr);
8605 break;
8606 default:
8607 break;
8608 }
8609 qeth_set_ip_addr_list(card);
8610 out:
8611 return NOTIFY_DONE;
8612 }
8613
8614 static struct notifier_block qeth_ip6_notifier = {
8615 qeth_ip6_event,
8616 NULL,
8617 };
8618 #endif
8619
8620 static int
8621 __qeth_reboot_event_card(struct device *dev, void *data)
8622 {
8623 struct qeth_card *card;
8624
8625 card = (struct qeth_card *) dev->driver_data;
8626 qeth_clear_ip_list(card, 0, 0);
8627 qeth_qdio_clear_card(card, 0);
8628 qeth_clear_qdio_buffers(card);
8629 return 0;
8630 }
8631
8632 static int
8633 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8634 {
8635 int ret;
8636
8637 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8638 __qeth_reboot_event_card);
8639 return ret ? NOTIFY_BAD : NOTIFY_DONE;
8640 }
8641
8642
8643 static struct notifier_block qeth_reboot_notifier = {
8644 qeth_reboot_event,
8645 NULL,
8646 };
8647
8648 static int
8649 qeth_register_notifiers(void)
8650 {
8651 int r;
8652
8653 QETH_DBF_TEXT(trace,5,"regnotif");
8654 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8655 return r;
8656 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8657 goto out_reboot;
8658 #ifdef CONFIG_QETH_IPV6
8659 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8660 goto out_ipv4;
8661 #endif
8662 return 0;
8663
8664 #ifdef CONFIG_QETH_IPV6
8665 out_ipv4:
8666 unregister_inetaddr_notifier(&qeth_ip_notifier);
8667 #endif
8668 out_reboot:
8669 unregister_reboot_notifier(&qeth_reboot_notifier);
8670 return r;
8671 }
8672
8673 /**
8674 * unregister all event notifiers
8675 */
8676 static void
8677 qeth_unregister_notifiers(void)
8678 {
8679
8680 QETH_DBF_TEXT(trace,5,"unregnot");
8681 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8682 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8683 #ifdef CONFIG_QETH_IPV6
8684 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8685 #endif /* QETH_IPV6 */
8686
8687 }
8688
8689 #ifdef CONFIG_QETH_IPV6
8690 static int
8691 qeth_ipv6_init(void)
8692 {
8693 qeth_old_arp_constructor = arp_tbl.constructor;
8694 write_lock_bh(&arp_tbl.lock);
8695 arp_tbl.constructor = qeth_arp_constructor;
8696 write_unlock_bh(&arp_tbl.lock);
8697
8698 arp_direct_ops = (struct neigh_ops*)
8699 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8700 if (!arp_direct_ops)
8701 return -ENOMEM;
8702
8703 memcpy(arp_direct_ops, &arp_direct_ops_template,
8704 sizeof(struct neigh_ops));
8705
8706 return 0;
8707 }
8708
8709 static void
8710 qeth_ipv6_uninit(void)
8711 {
8712 write_lock_bh(&arp_tbl.lock);
8713 arp_tbl.constructor = qeth_old_arp_constructor;
8714 write_unlock_bh(&arp_tbl.lock);
8715 kfree(arp_direct_ops);
8716 }
8717 #endif /* CONFIG_QETH_IPV6 */
8718
8719 static void
8720 qeth_sysfs_unregister(void)
8721 {
8722 s390_root_dev_unregister(qeth_root_dev);
8723 qeth_remove_driver_attributes();
8724 ccw_driver_unregister(&qeth_ccw_driver);
8725 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8726 }
8727
8728 /**
8729 * register qeth at sysfs
8730 */
8731 static int
8732 qeth_sysfs_register(void)
8733 {
8734 int rc;
8735
8736 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8737 if (rc)
8738 goto out;
8739
8740 rc = ccw_driver_register(&qeth_ccw_driver);
8741 if (rc)
8742 goto out_ccw_driver;
8743
8744 rc = qeth_create_driver_attributes();
8745 if (rc)
8746 goto out_qeth_attr;
8747
8748 qeth_root_dev = s390_root_dev_register("qeth");
8749 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8750 if (!rc)
8751 goto out;
8752
8753 qeth_remove_driver_attributes();
8754 out_qeth_attr:
8755 ccw_driver_unregister(&qeth_ccw_driver);
8756 out_ccw_driver:
8757 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8758 out:
8759 return rc;
8760 }
8761
8762 /***
8763 * init function
8764 */
8765 static int __init
8766 qeth_init(void)
8767 {
8768 int rc;
8769
8770 PRINT_INFO("loading %s\n", version);
8771
8772 INIT_LIST_HEAD(&qeth_card_list.list);
8773 INIT_LIST_HEAD(&qeth_notify_list);
8774 spin_lock_init(&qeth_notify_lock);
8775 rwlock_init(&qeth_card_list.rwlock);
8776
8777 rc = qeth_register_dbf_views();
8778 if (rc)
8779 goto out_err;
8780
8781 rc = qeth_sysfs_register();
8782 if (rc)
8783 goto out_dbf;
8784
8785 #ifdef CONFIG_QETH_IPV6
8786 rc = qeth_ipv6_init();
8787 if (rc) {
8788 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8789 goto out_sysfs;
8790 }
8791 #endif /* QETH_IPV6 */
8792 rc = qeth_register_notifiers();
8793 if (rc)
8794 goto out_ipv6;
8795 rc = qeth_create_procfs_entries();
8796 if (rc)
8797 goto out_notifiers;
8798
8799 return rc;
8800
8801 out_notifiers:
8802 qeth_unregister_notifiers();
8803 out_ipv6:
8804 #ifdef CONFIG_QETH_IPV6
8805 qeth_ipv6_uninit();
8806 out_sysfs:
8807 #endif /* QETH_IPV6 */
8808 qeth_sysfs_unregister();
8809 out_dbf:
8810 qeth_unregister_dbf_views();
8811 out_err:
8812 PRINT_ERR("Initialization failed with code %d\n", rc);
8813 return rc;
8814 }
8815
8816 static void
8817 __exit qeth_exit(void)
8818 {
8819 struct qeth_card *card, *tmp;
8820 unsigned long flags;
8821
8822 QETH_DBF_TEXT(trace,1, "cleanup.");
8823
8824 /*
8825 * Weed would not need to clean up our devices here, because the
8826 * common device layer calls qeth_remove_device for each device
8827 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8828 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8829 * qeth_remove_device called by the common device layer would otherwise
8830 * do a "hard" shutdown (card->use_hard_stop is set to one in
8831 * qeth_remove_device).
8832 */
8833 again:
8834 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8835 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8836 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8837 qeth_set_offline(card->gdev);
8838 qeth_remove_device(card->gdev);
8839 goto again;
8840 }
8841 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8842 #ifdef CONFIG_QETH_IPV6
8843 qeth_ipv6_uninit();
8844 #endif
8845 qeth_unregister_notifiers();
8846 qeth_remove_procfs_entries();
8847 qeth_sysfs_unregister();
8848 qeth_unregister_dbf_views();
8849 printk("qeth: removed\n");
8850 }
8851
8852 EXPORT_SYMBOL(qeth_osn_register);
8853 EXPORT_SYMBOL(qeth_osn_deregister);
8854 EXPORT_SYMBOL(qeth_osn_assist);
8855 module_init(qeth_init);
8856 module_exit(qeth_exit);
8857 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8858 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8859 "Copyright 2000,2003 IBM Corporation\n");
8860
8861 MODULE_LICENSE("GPL");
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