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kbuild: Fix instrumentation removal breakage on avr32
[wrt350n-kernel.git] / drivers / s390 / net / qeth_main.c
blob62606ce26e5562bdd1bc6a5a8447c283951ab57d
1 /*
2 * linux/drivers/s390/net/qeth_main.c
3 *
4 * Linux on zSeries OSA Express and HiperSockets support
5 *
6 * Copyright 2000,2003 IBM Corporation
7 *
8 * Author(s): Original Code written by
9 * Utz Bacher (utz.bacher@de.ibm.com)
10 * Rewritten by
11 * Frank Pavlic (fpavlic@de.ibm.com) and
12 * Thomas Spatzier <tspat@de.ibm.com>
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
29
30 #include <linux/module.h>
31 #include <linux/moduleparam.h>
32 #include <linux/string.h>
33 #include <linux/errno.h>
34 #include <linux/mm.h>
35 #include <linux/ip.h>
36 #include <linux/inetdevice.h>
37 #include <linux/netdevice.h>
38 #include <linux/sched.h>
39 #include <linux/workqueue.h>
40 #include <linux/kernel.h>
41 #include <linux/slab.h>
42 #include <linux/interrupt.h>
43 #include <linux/tcp.h>
44 #include <linux/icmp.h>
45 #include <linux/skbuff.h>
46 #include <linux/in.h>
47 #include <linux/igmp.h>
48 #include <linux/init.h>
49 #include <linux/reboot.h>
50 #include <linux/mii.h>
51 #include <linux/rcupdate.h>
52 #include <linux/ethtool.h>
53
54 #include <net/arp.h>
55 #include <net/ip.h>
56 #include <net/route.h>
57
58 #include <asm/ebcdic.h>
59 #include <asm/io.h>
60 #include <asm/qeth.h>
61 #include <asm/timex.h>
62 #include <asm/semaphore.h>
63 #include <asm/uaccess.h>
64 #include <asm/s390_rdev.h>
65
66 #include "qeth.h"
67 #include "qeth_mpc.h"
68 #include "qeth_fs.h"
69 #include "qeth_eddp.h"
70 #include "qeth_tso.h"
71
72 static const char *version = "qeth S/390 OSA-Express driver";
73
74 /**
75 * Debug Facility Stuff
76 */
77 static debug_info_t *qeth_dbf_setup = NULL;
78 static debug_info_t *qeth_dbf_data = NULL;
79 static debug_info_t *qeth_dbf_misc = NULL;
80 static debug_info_t *qeth_dbf_control = NULL;
81 debug_info_t *qeth_dbf_trace = NULL;
82 static debug_info_t *qeth_dbf_sense = NULL;
83 static debug_info_t *qeth_dbf_qerr = NULL;
84
85 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
86
87 static struct lock_class_key qdio_out_skb_queue_key;
88
89 /**
90 * some more definitions and declarations
91 */
92 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
93
94 /* list of our cards */
95 struct qeth_card_list_struct qeth_card_list;
96 /*process list want to be notified*/
97 spinlock_t qeth_notify_lock;
98 struct list_head qeth_notify_list;
99
100 static void qeth_send_control_data_cb(struct qeth_channel *,
101 struct qeth_cmd_buffer *);
102
103 /**
104 * here we go with function implementation
105 */
106 static void
107 qeth_init_qdio_info(struct qeth_card *card);
108
109 static int
110 qeth_init_qdio_queues(struct qeth_card *card);
111
112 static int
113 qeth_alloc_qdio_buffers(struct qeth_card *card);
114
115 static void
116 qeth_free_qdio_buffers(struct qeth_card *);
117
118 static void
119 qeth_clear_qdio_buffers(struct qeth_card *);
120
121 static void
122 qeth_clear_ip_list(struct qeth_card *, int, int);
123
124 static void
125 qeth_clear_ipacmd_list(struct qeth_card *);
126
127 static int
128 qeth_qdio_clear_card(struct qeth_card *, int);
129
130 static void
131 qeth_clear_working_pool_list(struct qeth_card *);
132
133 static void
134 qeth_clear_cmd_buffers(struct qeth_channel *);
135
136 static int
137 qeth_stop(struct net_device *);
138
139 static void
140 qeth_clear_ipato_list(struct qeth_card *);
141
142 static int
143 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
144
145 static void
146 qeth_irq_tasklet(unsigned long);
147
148 static int
149 qeth_set_online(struct ccwgroup_device *);
150
151 static int
152 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
153
154 static struct qeth_ipaddr *
155 qeth_get_addr_buffer(enum qeth_prot_versions);
156
157 static void
158 qeth_set_multicast_list(struct net_device *);
159
160 static void
161 qeth_setadp_promisc_mode(struct qeth_card *);
162
163 static int
164 qeth_hard_header_parse(const struct sk_buff *skb, unsigned char *haddr);
165
166 static void
167 qeth_notify_processes(void)
168 {
169 /*notify all registered processes */
170 struct qeth_notify_list_struct *n_entry;
171
172 QETH_DBF_TEXT(trace,3,"procnoti");
173 spin_lock(&qeth_notify_lock);
174 list_for_each_entry(n_entry, &qeth_notify_list, list) {
175 send_sig(n_entry->signum, n_entry->task, 1);
176 }
177 spin_unlock(&qeth_notify_lock);
178
179 }
180 int
181 qeth_notifier_unregister(struct task_struct *p)
182 {
183 struct qeth_notify_list_struct *n_entry, *tmp;
184
185 QETH_DBF_TEXT(trace, 2, "notunreg");
186 spin_lock(&qeth_notify_lock);
187 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
188 if (n_entry->task == p) {
189 list_del(&n_entry->list);
190 kfree(n_entry);
191 goto out;
192 }
193 }
194 out:
195 spin_unlock(&qeth_notify_lock);
196 return 0;
197 }
198 int
199 qeth_notifier_register(struct task_struct *p, int signum)
200 {
201 struct qeth_notify_list_struct *n_entry;
202
203 /*check first if entry already exists*/
204 spin_lock(&qeth_notify_lock);
205 list_for_each_entry(n_entry, &qeth_notify_list, list) {
206 if (n_entry->task == p) {
207 n_entry->signum = signum;
208 spin_unlock(&qeth_notify_lock);
209 return 0;
210 }
211 }
212 spin_unlock(&qeth_notify_lock);
213
214 n_entry = (struct qeth_notify_list_struct *)
215 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
216 if (!n_entry)
217 return -ENOMEM;
218 n_entry->task = p;
219 n_entry->signum = signum;
220 spin_lock(&qeth_notify_lock);
221 list_add(&n_entry->list,&qeth_notify_list);
222 spin_unlock(&qeth_notify_lock);
223 return 0;
224 }
225
226
227 /**
228 * free channel command buffers
229 */
230 static void
231 qeth_clean_channel(struct qeth_channel *channel)
232 {
233 int cnt;
234
235 QETH_DBF_TEXT(setup, 2, "freech");
236 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
237 kfree(channel->iob[cnt].data);
238 }
239
240 /**
241 * free card
242 */
243 static void
244 qeth_free_card(struct qeth_card *card)
245 {
246
247 QETH_DBF_TEXT(setup, 2, "freecrd");
248 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
249 qeth_clean_channel(&card->read);
250 qeth_clean_channel(&card->write);
251 if (card->dev)
252 free_netdev(card->dev);
253 qeth_clear_ip_list(card, 0, 0);
254 qeth_clear_ipato_list(card);
255 kfree(card->ip_tbd_list);
256 qeth_free_qdio_buffers(card);
257 kfree(card);
258 }
259
260 /**
261 * alloc memory for command buffer per channel
262 */
263 static int
264 qeth_setup_channel(struct qeth_channel *channel)
265 {
266 int cnt;
267
268 QETH_DBF_TEXT(setup, 2, "setupch");
269 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
270 channel->iob[cnt].data = (char *)
271 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
272 if (channel->iob[cnt].data == NULL)
273 break;
274 channel->iob[cnt].state = BUF_STATE_FREE;
275 channel->iob[cnt].channel = channel;
276 channel->iob[cnt].callback = qeth_send_control_data_cb;
277 channel->iob[cnt].rc = 0;
278 }
279 if (cnt < QETH_CMD_BUFFER_NO) {
280 while (cnt-- > 0)
281 kfree(channel->iob[cnt].data);
282 return -ENOMEM;
283 }
284 channel->buf_no = 0;
285 channel->io_buf_no = 0;
286 atomic_set(&channel->irq_pending, 0);
287 spin_lock_init(&channel->iob_lock);
288
289 init_waitqueue_head(&channel->wait_q);
290 channel->irq_tasklet.data = (unsigned long) channel;
291 channel->irq_tasklet.func = qeth_irq_tasklet;
292 return 0;
293 }
294
295 /**
296 * alloc memory for card structure
297 */
298 static struct qeth_card *
299 qeth_alloc_card(void)
300 {
301 struct qeth_card *card;
302
303 QETH_DBF_TEXT(setup, 2, "alloccrd");
304 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
305 if (!card)
306 return NULL;
307 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
308 if (qeth_setup_channel(&card->read)) {
309 kfree(card);
310 return NULL;
311 }
312 if (qeth_setup_channel(&card->write)) {
313 qeth_clean_channel(&card->read);
314 kfree(card);
315 return NULL;
316 }
317 return card;
318 }
319
320 static long
321 __qeth_check_irb_error(struct ccw_device *cdev, unsigned long intparm,
322 struct irb *irb)
323 {
324 if (!IS_ERR(irb))
325 return 0;
326
327 switch (PTR_ERR(irb)) {
328 case -EIO:
329 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
330 QETH_DBF_TEXT(trace, 2, "ckirberr");
331 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
332 break;
333 case -ETIMEDOUT:
334 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
335 QETH_DBF_TEXT(trace, 2, "ckirberr");
336 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT);
337 if (intparm == QETH_RCD_PARM) {
338 struct qeth_card *card = CARD_FROM_CDEV(cdev);
339
340 if (card && (card->data.ccwdev == cdev)) {
341 card->data.state = CH_STATE_DOWN;
342 wake_up(&card->wait_q);
343 }
344 }
345 break;
346 default:
347 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
348 cdev->dev.bus_id);
349 QETH_DBF_TEXT(trace, 2, "ckirberr");
350 QETH_DBF_TEXT(trace, 2, " rc???");
351 }
352 return PTR_ERR(irb);
353 }
354
355 static int
356 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
357 {
358 int dstat,cstat;
359 char *sense;
360
361 sense = (char *) irb->ecw;
362 cstat = irb->scsw.cstat;
363 dstat = irb->scsw.dstat;
364
365 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
366 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
367 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
368 QETH_DBF_TEXT(trace,2, "CGENCHK");
369 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
370 cdev->dev.bus_id, dstat, cstat);
371 HEXDUMP16(WARN, "irb: ", irb);
372 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
373 return 1;
374 }
375
376 if (dstat & DEV_STAT_UNIT_CHECK) {
377 if (sense[SENSE_RESETTING_EVENT_BYTE] &
378 SENSE_RESETTING_EVENT_FLAG) {
379 QETH_DBF_TEXT(trace,2,"REVIND");
380 return 1;
381 }
382 if (sense[SENSE_COMMAND_REJECT_BYTE] &
383 SENSE_COMMAND_REJECT_FLAG) {
384 QETH_DBF_TEXT(trace,2,"CMDREJi");
385 return 0;
386 }
387 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
388 QETH_DBF_TEXT(trace,2,"AFFE");
389 return 1;
390 }
391 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
392 QETH_DBF_TEXT(trace,2,"ZEROSEN");
393 return 0;
394 }
395 QETH_DBF_TEXT(trace,2,"DGENCHK");
396 return 1;
397 }
398 return 0;
399 }
400 static int qeth_issue_next_read(struct qeth_card *);
401
402 /**
403 * interrupt handler
404 */
405 static void
406 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
407 {
408 int rc;
409 int cstat,dstat;
410 struct qeth_cmd_buffer *buffer;
411 struct qeth_channel *channel;
412 struct qeth_card *card;
413
414 QETH_DBF_TEXT(trace,5,"irq");
415
416 if (__qeth_check_irb_error(cdev, intparm, irb))
417 return;
418 cstat = irb->scsw.cstat;
419 dstat = irb->scsw.dstat;
420
421 card = CARD_FROM_CDEV(cdev);
422 if (!card)
423 return;
424
425 if (card->read.ccwdev == cdev){
426 channel = &card->read;
427 QETH_DBF_TEXT(trace,5,"read");
428 } else if (card->write.ccwdev == cdev) {
429 channel = &card->write;
430 QETH_DBF_TEXT(trace,5,"write");
431 } else {
432 channel = &card->data;
433 QETH_DBF_TEXT(trace,5,"data");
434 }
435 atomic_set(&channel->irq_pending, 0);
436
437 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
438 channel->state = CH_STATE_STOPPED;
439
440 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
441 channel->state = CH_STATE_HALTED;
442
443 /*let's wake up immediately on data channel*/
444 if ((channel == &card->data) && (intparm != 0) &&
445 (intparm != QETH_RCD_PARM))
446 goto out;
447
448 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
449 QETH_DBF_TEXT(trace, 6, "clrchpar");
450 /* we don't have to handle this further */
451 intparm = 0;
452 }
453 if (intparm == QETH_HALT_CHANNEL_PARM) {
454 QETH_DBF_TEXT(trace, 6, "hltchpar");
455 /* we don't have to handle this further */
456 intparm = 0;
457 }
458 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
459 (dstat & DEV_STAT_UNIT_CHECK) ||
460 (cstat)) {
461 if (irb->esw.esw0.erw.cons) {
462 /* TODO: we should make this s390dbf */
463 PRINT_WARN("sense data available on channel %s.\n",
464 CHANNEL_ID(channel));
465 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
466 HEXDUMP16(WARN,"irb: ",irb);
467 HEXDUMP16(WARN,"sense data: ",irb->ecw);
468 }
469 if (intparm == QETH_RCD_PARM) {
470 channel->state = CH_STATE_DOWN;
471 goto out;
472 }
473 rc = qeth_get_problem(cdev,irb);
474 if (rc) {
475 qeth_schedule_recovery(card);
476 goto out;
477 }
478 }
479
480 if (intparm == QETH_RCD_PARM) {
481 channel->state = CH_STATE_RCD_DONE;
482 goto out;
483 }
484 if (intparm) {
485 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
486 buffer->state = BUF_STATE_PROCESSED;
487 }
488 if (channel == &card->data)
489 return;
490
491 if (channel == &card->read &&
492 channel->state == CH_STATE_UP)
493 qeth_issue_next_read(card);
494
495 qeth_irq_tasklet((unsigned long)channel);
496 return;
497 out:
498 wake_up(&card->wait_q);
499 }
500
501 /**
502 * tasklet function scheduled from irq handler
503 */
504 static void
505 qeth_irq_tasklet(unsigned long data)
506 {
507 struct qeth_card *card;
508 struct qeth_channel *channel;
509 struct qeth_cmd_buffer *iob;
510 __u8 index;
511
512 QETH_DBF_TEXT(trace,5,"irqtlet");
513 channel = (struct qeth_channel *) data;
514 iob = channel->iob;
515 index = channel->buf_no;
516 card = CARD_FROM_CDEV(channel->ccwdev);
517 while (iob[index].state == BUF_STATE_PROCESSED) {
518 if (iob[index].callback !=NULL) {
519 iob[index].callback(channel,iob + index);
520 }
521 index = (index + 1) % QETH_CMD_BUFFER_NO;
522 }
523 channel->buf_no = index;
524 wake_up(&card->wait_q);
525 }
526
527 static int qeth_stop_card(struct qeth_card *, int);
528
529 static int
530 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
531 {
532 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
533 int rc = 0, rc2 = 0, rc3 = 0;
534 enum qeth_card_states recover_flag;
535
536 QETH_DBF_TEXT(setup, 3, "setoffl");
537 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
538
539 if (card->dev && netif_carrier_ok(card->dev))
540 netif_carrier_off(card->dev);
541 recover_flag = card->state;
542 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
543 PRINT_WARN("Stopping card %s interrupted by user!\n",
544 CARD_BUS_ID(card));
545 return -ERESTARTSYS;
546 }
547 rc = ccw_device_set_offline(CARD_DDEV(card));
548 rc2 = ccw_device_set_offline(CARD_WDEV(card));
549 rc3 = ccw_device_set_offline(CARD_RDEV(card));
550 if (!rc)
551 rc = (rc2) ? rc2 : rc3;
552 if (rc)
553 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
554 if (recover_flag == CARD_STATE_UP)
555 card->state = CARD_STATE_RECOVER;
556 qeth_notify_processes();
557 return 0;
558 }
559
560 static int
561 qeth_set_offline(struct ccwgroup_device *cgdev)
562 {
563 return __qeth_set_offline(cgdev, 0);
564 }
565
566 static int
567 qeth_threads_running(struct qeth_card *card, unsigned long threads);
568
569
570 static void
571 qeth_remove_device(struct ccwgroup_device *cgdev)
572 {
573 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
574 unsigned long flags;
575
576 QETH_DBF_TEXT(setup, 3, "rmdev");
577 QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
578
579 if (!card)
580 return;
581
582 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
583
584 if (cgdev->state == CCWGROUP_ONLINE){
585 card->use_hard_stop = 1;
586 qeth_set_offline(cgdev);
587 }
588 /* remove form our internal list */
589 write_lock_irqsave(&qeth_card_list.rwlock, flags);
590 list_del(&card->list);
591 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
592 if (card->dev)
593 unregister_netdev(card->dev);
594 qeth_remove_device_attributes(&cgdev->dev);
595 qeth_free_card(card);
596 cgdev->dev.driver_data = NULL;
597 put_device(&cgdev->dev);
598 }
599
600 static int
601 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
602 static int
603 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
604
605 /**
606 * Add/remove address to/from card's ip list, i.e. try to add or remove
607 * reference to/from an IP address that is already registered on the card.
608 * Returns:
609 * 0 address was on card and its reference count has been adjusted,
610 * but is still > 0, so nothing has to be done
611 * also returns 0 if card was not on card and the todo was to delete
612 * the address -> there is also nothing to be done
613 * 1 address was not on card and the todo is to add it to the card's ip
614 * list
615 * -1 address was on card and its reference count has been decremented
616 * to <= 0 by the todo -> address must be removed from card
617 */
618 static int
619 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
620 struct qeth_ipaddr **__addr)
621 {
622 struct qeth_ipaddr *addr;
623 int found = 0;
624
625 list_for_each_entry(addr, &card->ip_list, entry) {
626 if (card->options.layer2) {
627 if ((addr->type == todo->type) &&
628 (memcmp(&addr->mac, &todo->mac,
629 OSA_ADDR_LEN) == 0)) {
630 found = 1;
631 break;
632 }
633 continue;
634 }
635 if ((addr->proto == QETH_PROT_IPV4) &&
636 (todo->proto == QETH_PROT_IPV4) &&
637 (addr->type == todo->type) &&
638 (addr->u.a4.addr == todo->u.a4.addr) &&
639 (addr->u.a4.mask == todo->u.a4.mask)) {
640 found = 1;
641 break;
642 }
643 if ((addr->proto == QETH_PROT_IPV6) &&
644 (todo->proto == QETH_PROT_IPV6) &&
645 (addr->type == todo->type) &&
646 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
647 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
648 sizeof(struct in6_addr)) == 0)) {
649 found = 1;
650 break;
651 }
652 }
653 if (found) {
654 addr->users += todo->users;
655 if (addr->users <= 0){
656 *__addr = addr;
657 return -1;
658 } else {
659 /* for VIPA and RXIP limit refcount to 1 */
660 if (addr->type != QETH_IP_TYPE_NORMAL)
661 addr->users = 1;
662 return 0;
663 }
664 }
665 if (todo->users > 0) {
666 /* for VIPA and RXIP limit refcount to 1 */
667 if (todo->type != QETH_IP_TYPE_NORMAL)
668 todo->users = 1;
669 return 1;
670 } else
671 return 0;
672 }
673
674 static int
675 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
676 int same_type)
677 {
678 struct qeth_ipaddr *tmp;
679
680 list_for_each_entry(tmp, list, entry) {
681 if ((tmp->proto == QETH_PROT_IPV4) &&
682 (addr->proto == QETH_PROT_IPV4) &&
683 ((same_type && (tmp->type == addr->type)) ||
684 (!same_type && (tmp->type != addr->type)) ) &&
685 (tmp->u.a4.addr == addr->u.a4.addr) ){
686 return 1;
687 }
688 if ((tmp->proto == QETH_PROT_IPV6) &&
689 (addr->proto == QETH_PROT_IPV6) &&
690 ((same_type && (tmp->type == addr->type)) ||
691 (!same_type && (tmp->type != addr->type)) ) &&
692 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
693 sizeof(struct in6_addr)) == 0) ) {
694 return 1;
695 }
696 }
697 return 0;
698 }
699
700 /*
701 * Add IP to be added to todo list. If there is already an "add todo"
702 * in this list we just incremenent the reference count.
703 * Returns 0 if we just incremented reference count.
704 */
705 static int
706 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
707 {
708 struct qeth_ipaddr *tmp, *t;
709 int found = 0;
710
711 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
712 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
713 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
714 return 0;
715 if (card->options.layer2) {
716 if ((tmp->type == addr->type) &&
717 (tmp->is_multicast == addr->is_multicast) &&
718 (memcmp(&tmp->mac, &addr->mac,
719 OSA_ADDR_LEN) == 0)) {
720 found = 1;
721 break;
722 }
723 continue;
724 }
725 if ((tmp->proto == QETH_PROT_IPV4) &&
726 (addr->proto == QETH_PROT_IPV4) &&
727 (tmp->type == addr->type) &&
728 (tmp->is_multicast == addr->is_multicast) &&
729 (tmp->u.a4.addr == addr->u.a4.addr) &&
730 (tmp->u.a4.mask == addr->u.a4.mask)) {
731 found = 1;
732 break;
733 }
734 if ((tmp->proto == QETH_PROT_IPV6) &&
735 (addr->proto == QETH_PROT_IPV6) &&
736 (tmp->type == addr->type) &&
737 (tmp->is_multicast == addr->is_multicast) &&
738 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
739 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
740 sizeof(struct in6_addr)) == 0)) {
741 found = 1;
742 break;
743 }
744 }
745 if (found){
746 if (addr->users != 0)
747 tmp->users += addr->users;
748 else
749 tmp->users += add? 1:-1;
750 if (tmp->users == 0) {
751 list_del(&tmp->entry);
752 kfree(tmp);
753 }
754 return 0;
755 } else {
756 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
757 list_add(&addr->entry, card->ip_tbd_list);
758 else {
759 if (addr->users == 0)
760 addr->users += add? 1:-1;
761 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
762 qeth_is_addr_covered_by_ipato(card, addr)){
763 QETH_DBF_TEXT(trace, 2, "tkovaddr");
764 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
765 }
766 list_add_tail(&addr->entry, card->ip_tbd_list);
767 }
768 return 1;
769 }
770 }
771
772 /**
773 * Remove IP address from list
774 */
775 static int
776 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
777 {
778 unsigned long flags;
779 int rc = 0;
780
781 QETH_DBF_TEXT(trace, 4, "delip");
782
783 if (card->options.layer2)
784 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
785 else if (addr->proto == QETH_PROT_IPV4)
786 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
787 else {
788 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
789 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
790 }
791 spin_lock_irqsave(&card->ip_lock, flags);
792 rc = __qeth_insert_ip_todo(card, addr, 0);
793 spin_unlock_irqrestore(&card->ip_lock, flags);
794 return rc;
795 }
796
797 static int
798 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
799 {
800 unsigned long flags;
801 int rc = 0;
802
803 QETH_DBF_TEXT(trace, 4, "addip");
804 if (card->options.layer2)
805 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
806 else if (addr->proto == QETH_PROT_IPV4)
807 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
808 else {
809 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
810 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
811 }
812 spin_lock_irqsave(&card->ip_lock, flags);
813 rc = __qeth_insert_ip_todo(card, addr, 1);
814 spin_unlock_irqrestore(&card->ip_lock, flags);
815 return rc;
816 }
817
818 static void
819 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
820 {
821 struct qeth_ipaddr *addr, *tmp;
822 int rc;
823 again:
824 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
825 if (addr->is_multicast) {
826 list_del(&addr->entry);
827 spin_unlock_irqrestore(&card->ip_lock, *flags);
828 rc = qeth_deregister_addr_entry(card, addr);
829 spin_lock_irqsave(&card->ip_lock, *flags);
830 if (!rc) {
831 kfree(addr);
832 goto again;
833 } else
834 list_add(&addr->entry, &card->ip_list);
835 }
836 }
837 }
838
839 static void
840 qeth_set_ip_addr_list(struct qeth_card *card)
841 {
842 struct list_head *tbd_list;
843 struct qeth_ipaddr *todo, *addr;
844 unsigned long flags;
845 int rc;
846
847 QETH_DBF_TEXT(trace, 2, "sdiplist");
848 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
849
850 spin_lock_irqsave(&card->ip_lock, flags);
851 tbd_list = card->ip_tbd_list;
852 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
853 if (!card->ip_tbd_list) {
854 QETH_DBF_TEXT(trace, 0, "silnomem");
855 card->ip_tbd_list = tbd_list;
856 spin_unlock_irqrestore(&card->ip_lock, flags);
857 return;
858 } else
859 INIT_LIST_HEAD(card->ip_tbd_list);
860
861 while (!list_empty(tbd_list)){
862 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
863 list_del(&todo->entry);
864 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
865 __qeth_delete_all_mc(card, &flags);
866 kfree(todo);
867 continue;
868 }
869 rc = __qeth_ref_ip_on_card(card, todo, &addr);
870 if (rc == 0) {
871 /* nothing to be done; only adjusted refcount */
872 kfree(todo);
873 } else if (rc == 1) {
874 /* new entry to be added to on-card list */
875 spin_unlock_irqrestore(&card->ip_lock, flags);
876 rc = qeth_register_addr_entry(card, todo);
877 spin_lock_irqsave(&card->ip_lock, flags);
878 if (!rc)
879 list_add_tail(&todo->entry, &card->ip_list);
880 else
881 kfree(todo);
882 } else if (rc == -1) {
883 /* on-card entry to be removed */
884 list_del_init(&addr->entry);
885 spin_unlock_irqrestore(&card->ip_lock, flags);
886 rc = qeth_deregister_addr_entry(card, addr);
887 spin_lock_irqsave(&card->ip_lock, flags);
888 if (!rc)
889 kfree(addr);
890 else
891 list_add_tail(&addr->entry, &card->ip_list);
892 kfree(todo);
893 }
894 }
895 spin_unlock_irqrestore(&card->ip_lock, flags);
896 kfree(tbd_list);
897 }
898
899 static void qeth_delete_mc_addresses(struct qeth_card *);
900 static void qeth_add_multicast_ipv4(struct qeth_card *);
901 static void qeth_layer2_add_multicast(struct qeth_card *);
902 #ifdef CONFIG_QETH_IPV6
903 static void qeth_add_multicast_ipv6(struct qeth_card *);
904 #endif
905
906 static int
907 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
908 {
909 unsigned long flags;
910
911 spin_lock_irqsave(&card->thread_mask_lock, flags);
912 if ( !(card->thread_allowed_mask & thread) ||
913 (card->thread_start_mask & thread) ) {
914 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
915 return -EPERM;
916 }
917 card->thread_start_mask |= thread;
918 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
919 return 0;
920 }
921
922 static void
923 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
924 {
925 unsigned long flags;
926
927 spin_lock_irqsave(&card->thread_mask_lock, flags);
928 card->thread_start_mask &= ~thread;
929 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
930 wake_up(&card->wait_q);
931 }
932
933 static void
934 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
935 {
936 unsigned long flags;
937
938 spin_lock_irqsave(&card->thread_mask_lock, flags);
939 card->thread_running_mask &= ~thread;
940 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
941 wake_up(&card->wait_q);
942 }
943
944 static int
945 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
946 {
947 unsigned long flags;
948 int rc = 0;
949
950 spin_lock_irqsave(&card->thread_mask_lock, flags);
951 if (card->thread_start_mask & thread){
952 if ((card->thread_allowed_mask & thread) &&
953 !(card->thread_running_mask & thread)){
954 rc = 1;
955 card->thread_start_mask &= ~thread;
956 card->thread_running_mask |= thread;
957 } else
958 rc = -EPERM;
959 }
960 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
961 return rc;
962 }
963
964 static int
965 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
966 {
967 int rc = 0;
968
969 wait_event(card->wait_q,
970 (rc = __qeth_do_run_thread(card, thread)) >= 0);
971 return rc;
972 }
973
974 static int
975 qeth_recover(void *ptr)
976 {
977 struct qeth_card *card;
978 int rc = 0;
979
980 card = (struct qeth_card *) ptr;
981 daemonize("qeth_recover");
982 QETH_DBF_TEXT(trace,2,"recover1");
983 QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
984 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
985 return 0;
986 QETH_DBF_TEXT(trace,2,"recover2");
987 PRINT_WARN("Recovery of device %s started ...\n",
988 CARD_BUS_ID(card));
989 card->use_hard_stop = 1;
990 __qeth_set_offline(card->gdev,1);
991 rc = __qeth_set_online(card->gdev,1);
992 /* don't run another scheduled recovery */
993 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
994 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
995 if (!rc)
996 PRINT_INFO("Device %s successfully recovered!\n",
997 CARD_BUS_ID(card));
998 else
999 PRINT_INFO("Device %s could not be recovered!\n",
1000 CARD_BUS_ID(card));
1001 return 0;
1002 }
1003
1004 void
1005 qeth_schedule_recovery(struct qeth_card *card)
1006 {
1007 QETH_DBF_TEXT(trace,2,"startrec");
1008 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1009 schedule_work(&card->kernel_thread_starter);
1010 }
1011
1012 static int
1013 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1014 {
1015 unsigned long flags;
1016 int rc = 0;
1017
1018 spin_lock_irqsave(&card->thread_mask_lock, flags);
1019 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x",
1020 (u8) card->thread_start_mask,
1021 (u8) card->thread_allowed_mask,
1022 (u8) card->thread_running_mask);
1023 rc = (card->thread_start_mask & thread);
1024 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1025 return rc;
1026 }
1027
1028 static void
1029 qeth_start_kernel_thread(struct work_struct *work)
1030 {
1031 struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1032 QETH_DBF_TEXT(trace , 2, "strthrd");
1033
1034 if (card->read.state != CH_STATE_UP &&
1035 card->write.state != CH_STATE_UP)
1036 return;
1037 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1038 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1039 }
1040
1041
1042 static void
1043 qeth_set_intial_options(struct qeth_card *card)
1044 {
1045 card->options.route4.type = NO_ROUTER;
1046 #ifdef CONFIG_QETH_IPV6
1047 card->options.route6.type = NO_ROUTER;
1048 #endif /* QETH_IPV6 */
1049 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1050 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1051 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1052 card->options.fake_broadcast = 0;
1053 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1054 card->options.fake_ll = 0;
1055 if (card->info.type == QETH_CARD_TYPE_OSN)
1056 card->options.layer2 = 1;
1057 else
1058 card->options.layer2 = 0;
1059 card->options.performance_stats = 0;
1060 card->options.rx_sg_cb = QETH_RX_SG_CB;
1061 }
1062
1063 /**
1064 * initialize channels ,card and all state machines
1065 */
1066 static int
1067 qeth_setup_card(struct qeth_card *card)
1068 {
1069
1070 QETH_DBF_TEXT(setup, 2, "setupcrd");
1071 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1072
1073 card->read.state = CH_STATE_DOWN;
1074 card->write.state = CH_STATE_DOWN;
1075 card->data.state = CH_STATE_DOWN;
1076 card->state = CARD_STATE_DOWN;
1077 card->lan_online = 0;
1078 card->use_hard_stop = 0;
1079 card->dev = NULL;
1080 #ifdef CONFIG_QETH_VLAN
1081 spin_lock_init(&card->vlanlock);
1082 card->vlangrp = NULL;
1083 #endif
1084 spin_lock_init(&card->lock);
1085 spin_lock_init(&card->ip_lock);
1086 spin_lock_init(&card->thread_mask_lock);
1087 card->thread_start_mask = 0;
1088 card->thread_allowed_mask = 0;
1089 card->thread_running_mask = 0;
1090 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1091 INIT_LIST_HEAD(&card->ip_list);
1092 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1093 if (!card->ip_tbd_list) {
1094 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1095 return -ENOMEM;
1096 }
1097 INIT_LIST_HEAD(card->ip_tbd_list);
1098 INIT_LIST_HEAD(&card->cmd_waiter_list);
1099 init_waitqueue_head(&card->wait_q);
1100 /* intial options */
1101 qeth_set_intial_options(card);
1102 /* IP address takeover */
1103 INIT_LIST_HEAD(&card->ipato.entries);
1104 card->ipato.enabled = 0;
1105 card->ipato.invert4 = 0;
1106 card->ipato.invert6 = 0;
1107 /* init QDIO stuff */
1108 qeth_init_qdio_info(card);
1109 return 0;
1110 }
1111
1112 static int
1113 is_1920_device (struct qeth_card *card)
1114 {
1115 int single_queue = 0;
1116 struct ccw_device *ccwdev;
1117 struct channelPath_dsc {
1118 u8 flags;
1119 u8 lsn;
1120 u8 desc;
1121 u8 chpid;
1122 u8 swla;
1123 u8 zeroes;
1124 u8 chla;
1125 u8 chpp;
1126 } *chp_dsc;
1127
1128 QETH_DBF_TEXT(setup, 2, "chk_1920");
1129
1130 ccwdev = card->data.ccwdev;
1131 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1132 if (chp_dsc != NULL) {
1133 /* CHPP field bit 6 == 1 -> single queue */
1134 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1135 kfree(chp_dsc);
1136 }
1137 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1138 return single_queue;
1139 }
1140
1141 static int
1142 qeth_determine_card_type(struct qeth_card *card)
1143 {
1144 int i = 0;
1145
1146 QETH_DBF_TEXT(setup, 2, "detcdtyp");
1147
1148 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1149 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1150 while (known_devices[i][4]) {
1151 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1152 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1153 card->info.type = known_devices[i][4];
1154 card->qdio.no_out_queues = known_devices[i][8];
1155 card->info.is_multicast_different = known_devices[i][9];
1156 if (is_1920_device(card)) {
1157 PRINT_INFO("Priority Queueing not able "
1158 "due to hardware limitations!\n");
1159 card->qdio.no_out_queues = 1;
1160 card->qdio.default_out_queue = 0;
1161 }
1162 return 0;
1163 }
1164 i++;
1165 }
1166 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1167 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1168 return -ENOENT;
1169 }
1170
1171 static int
1172 qeth_probe_device(struct ccwgroup_device *gdev)
1173 {
1174 struct qeth_card *card;
1175 struct device *dev;
1176 unsigned long flags;
1177 int rc;
1178
1179 QETH_DBF_TEXT(setup, 2, "probedev");
1180
1181 dev = &gdev->dev;
1182 if (!get_device(dev))
1183 return -ENODEV;
1184
1185 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1186
1187 card = qeth_alloc_card();
1188 if (!card) {
1189 put_device(dev);
1190 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1191 return -ENOMEM;
1192 }
1193 card->read.ccwdev = gdev->cdev[0];
1194 card->write.ccwdev = gdev->cdev[1];
1195 card->data.ccwdev = gdev->cdev[2];
1196 gdev->dev.driver_data = card;
1197 card->gdev = gdev;
1198 gdev->cdev[0]->handler = qeth_irq;
1199 gdev->cdev[1]->handler = qeth_irq;
1200 gdev->cdev[2]->handler = qeth_irq;
1201
1202 if ((rc = qeth_determine_card_type(card))){
1203 PRINT_WARN("%s: not a valid card type\n", __func__);
1204 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1205 put_device(dev);
1206 qeth_free_card(card);
1207 return rc;
1208 }
1209 if ((rc = qeth_setup_card(card))){
1210 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1211 put_device(dev);
1212 qeth_free_card(card);
1213 return rc;
1214 }
1215 rc = qeth_create_device_attributes(dev);
1216 if (rc) {
1217 put_device(dev);
1218 qeth_free_card(card);
1219 return rc;
1220 }
1221 /* insert into our internal list */
1222 write_lock_irqsave(&qeth_card_list.rwlock, flags);
1223 list_add_tail(&card->list, &qeth_card_list.list);
1224 write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1225 return rc;
1226 }
1227
1228
1229 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1230 int *length)
1231 {
1232 struct ciw *ciw;
1233 char *rcd_buf;
1234 int ret;
1235 struct qeth_channel *channel = &card->data;
1236 unsigned long flags;
1237
1238 /*
1239 * scan for RCD command in extended SenseID data
1240 */
1241 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1242 if (!ciw || ciw->cmd == 0)
1243 return -EOPNOTSUPP;
1244 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1245 if (!rcd_buf)
1246 return -ENOMEM;
1247
1248 channel->ccw.cmd_code = ciw->cmd;
1249 channel->ccw.cda = (__u32) __pa (rcd_buf);
1250 channel->ccw.count = ciw->count;
1251 channel->ccw.flags = CCW_FLAG_SLI;
1252 channel->state = CH_STATE_RCD;
1253 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1254 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1255 QETH_RCD_PARM, LPM_ANYPATH, 0,
1256 QETH_RCD_TIMEOUT);
1257 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1258 if (!ret)
1259 wait_event(card->wait_q,
1260 (channel->state == CH_STATE_RCD_DONE ||
1261 channel->state == CH_STATE_DOWN));
1262 if (channel->state == CH_STATE_DOWN)
1263 ret = -EIO;
1264 else
1265 channel->state = CH_STATE_DOWN;
1266 if (ret) {
1267 kfree(rcd_buf);
1268 *buffer = NULL;
1269 *length = 0;
1270 } else {
1271 *length = ciw->count;
1272 *buffer = rcd_buf;
1273 }
1274 return ret;
1275 }
1276
1277 static int
1278 qeth_get_unitaddr(struct qeth_card *card)
1279 {
1280 int length;
1281 char *prcd;
1282 int rc;
1283
1284 QETH_DBF_TEXT(setup, 2, "getunit");
1285 rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1286 if (rc) {
1287 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1288 CARD_DDEV_ID(card), rc);
1289 return rc;
1290 }
1291 card->info.chpid = prcd[30];
1292 card->info.unit_addr2 = prcd[31];
1293 card->info.cula = prcd[63];
1294 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1295 (prcd[0x11] == _ascebc['M']));
1296 kfree(prcd);
1297 return 0;
1298 }
1299
1300 static void
1301 qeth_init_tokens(struct qeth_card *card)
1302 {
1303 card->token.issuer_rm_w = 0x00010103UL;
1304 card->token.cm_filter_w = 0x00010108UL;
1305 card->token.cm_connection_w = 0x0001010aUL;
1306 card->token.ulp_filter_w = 0x0001010bUL;
1307 card->token.ulp_connection_w = 0x0001010dUL;
1308 }
1309
1310 static inline __u16
1311 raw_devno_from_bus_id(char *id)
1312 {
1313 id += (strlen(id) - 4);
1314 return (__u16) simple_strtoul(id, &id, 16);
1315 }
1316 /**
1317 * setup channel
1318 */
1319 static void
1320 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1321 {
1322 struct qeth_card *card;
1323
1324 QETH_DBF_TEXT(trace, 4, "setupccw");
1325 card = CARD_FROM_CDEV(channel->ccwdev);
1326 if (channel == &card->read)
1327 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1328 else
1329 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1330 channel->ccw.count = len;
1331 channel->ccw.cda = (__u32) __pa(iob);
1332 }
1333
1334 /**
1335 * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1336 */
1337 static struct qeth_cmd_buffer *
1338 __qeth_get_buffer(struct qeth_channel *channel)
1339 {
1340 __u8 index;
1341
1342 QETH_DBF_TEXT(trace, 6, "getbuff");
1343 index = channel->io_buf_no;
1344 do {
1345 if (channel->iob[index].state == BUF_STATE_FREE) {
1346 channel->iob[index].state = BUF_STATE_LOCKED;
1347 channel->io_buf_no = (channel->io_buf_no + 1) %
1348 QETH_CMD_BUFFER_NO;
1349 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1350 return channel->iob + index;
1351 }
1352 index = (index + 1) % QETH_CMD_BUFFER_NO;
1353 } while(index != channel->io_buf_no);
1354
1355 return NULL;
1356 }
1357
1358 /**
1359 * release command buffer
1360 */
1361 static void
1362 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1363 {
1364 unsigned long flags;
1365
1366 QETH_DBF_TEXT(trace, 6, "relbuff");
1367 spin_lock_irqsave(&channel->iob_lock, flags);
1368 memset(iob->data, 0, QETH_BUFSIZE);
1369 iob->state = BUF_STATE_FREE;
1370 iob->callback = qeth_send_control_data_cb;
1371 iob->rc = 0;
1372 spin_unlock_irqrestore(&channel->iob_lock, flags);
1373 }
1374
1375 static struct qeth_cmd_buffer *
1376 qeth_get_buffer(struct qeth_channel *channel)
1377 {
1378 struct qeth_cmd_buffer *buffer = NULL;
1379 unsigned long flags;
1380
1381 spin_lock_irqsave(&channel->iob_lock, flags);
1382 buffer = __qeth_get_buffer(channel);
1383 spin_unlock_irqrestore(&channel->iob_lock, flags);
1384 return buffer;
1385 }
1386
1387 static struct qeth_cmd_buffer *
1388 qeth_wait_for_buffer(struct qeth_channel *channel)
1389 {
1390 struct qeth_cmd_buffer *buffer;
1391 wait_event(channel->wait_q,
1392 ((buffer = qeth_get_buffer(channel)) != NULL));
1393 return buffer;
1394 }
1395
1396 static void
1397 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1398 {
1399 int cnt;
1400
1401 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1402 qeth_release_buffer(channel,&channel->iob[cnt]);
1403 channel->buf_no = 0;
1404 channel->io_buf_no = 0;
1405 }
1406
1407 /**
1408 * start IDX for read and write channel
1409 */
1410 static int
1411 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1412 void (*idx_reply_cb)(struct qeth_channel *,
1413 struct qeth_cmd_buffer *))
1414 {
1415 struct qeth_cmd_buffer *iob;
1416 unsigned long flags;
1417 int rc;
1418 struct qeth_card *card;
1419
1420 QETH_DBF_TEXT(setup, 2, "idxanswr");
1421 card = CARD_FROM_CDEV(channel->ccwdev);
1422 iob = qeth_get_buffer(channel);
1423 iob->callback = idx_reply_cb;
1424 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1425 channel->ccw.count = QETH_BUFSIZE;
1426 channel->ccw.cda = (__u32) __pa(iob->data);
1427
1428 wait_event(card->wait_q,
1429 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1430 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1431 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1432 rc = ccw_device_start(channel->ccwdev,
1433 &channel->ccw,(addr_t) iob, 0, 0);
1434 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1435
1436 if (rc) {
1437 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1438 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1439 atomic_set(&channel->irq_pending, 0);
1440 wake_up(&card->wait_q);
1441 return rc;
1442 }
1443 rc = wait_event_interruptible_timeout(card->wait_q,
1444 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1445 if (rc == -ERESTARTSYS)
1446 return rc;
1447 if (channel->state != CH_STATE_UP){
1448 rc = -ETIME;
1449 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1450 qeth_clear_cmd_buffers(channel);
1451 } else
1452 rc = 0;
1453 return rc;
1454 }
1455
1456 static int
1457 qeth_idx_activate_channel(struct qeth_channel *channel,
1458 void (*idx_reply_cb)(struct qeth_channel *,
1459 struct qeth_cmd_buffer *))
1460 {
1461 struct qeth_card *card;
1462 struct qeth_cmd_buffer *iob;
1463 unsigned long flags;
1464 __u16 temp;
1465 int rc;
1466
1467 card = CARD_FROM_CDEV(channel->ccwdev);
1468
1469 QETH_DBF_TEXT(setup, 2, "idxactch");
1470
1471 iob = qeth_get_buffer(channel);
1472 iob->callback = idx_reply_cb;
1473 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1474 channel->ccw.count = IDX_ACTIVATE_SIZE;
1475 channel->ccw.cda = (__u32) __pa(iob->data);
1476 if (channel == &card->write) {
1477 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1478 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1479 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1480 card->seqno.trans_hdr++;
1481 } else {
1482 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1483 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1484 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1485 }
1486 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1487 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1488 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1489 &card->info.func_level,sizeof(__u16));
1490 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1491 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1492 temp = (card->info.cula << 8) + card->info.unit_addr2;
1493 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1494
1495 wait_event(card->wait_q,
1496 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1497 QETH_DBF_TEXT(setup, 6, "noirqpnd");
1498 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1499 rc = ccw_device_start(channel->ccwdev,
1500 &channel->ccw,(addr_t) iob, 0, 0);
1501 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1502
1503 if (rc) {
1504 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1505 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1506 atomic_set(&channel->irq_pending, 0);
1507 wake_up(&card->wait_q);
1508 return rc;
1509 }
1510 rc = wait_event_interruptible_timeout(card->wait_q,
1511 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1512 if (rc == -ERESTARTSYS)
1513 return rc;
1514 if (channel->state != CH_STATE_ACTIVATING) {
1515 PRINT_WARN("qeth: IDX activate timed out!\n");
1516 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1517 qeth_clear_cmd_buffers(channel);
1518 return -ETIME;
1519 }
1520 return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1521 }
1522
1523 static int
1524 qeth_peer_func_level(int level)
1525 {
1526 if ((level & 0xff) == 8)
1527 return (level & 0xff) + 0x400;
1528 if (((level >> 8) & 3) == 1)
1529 return (level & 0xff) + 0x200;
1530 return level;
1531 }
1532
1533 static void
1534 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1535 {
1536 struct qeth_card *card;
1537 __u16 temp;
1538
1539 QETH_DBF_TEXT(setup ,2, "idxwrcb");
1540
1541 if (channel->state == CH_STATE_DOWN) {
1542 channel->state = CH_STATE_ACTIVATING;
1543 goto out;
1544 }
1545 card = CARD_FROM_CDEV(channel->ccwdev);
1546
1547 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1548 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1549 PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1550 "adapter exclusively used by another host\n",
1551 CARD_WDEV_ID(card));
1552 else
1553 PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1554 "negative reply\n", CARD_WDEV_ID(card));
1555 goto out;
1556 }
1557 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1558 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1559 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1560 "function level mismatch "
1561 "(sent: 0x%x, received: 0x%x)\n",
1562 CARD_WDEV_ID(card), card->info.func_level, temp);
1563 goto out;
1564 }
1565 channel->state = CH_STATE_UP;
1566 out:
1567 qeth_release_buffer(channel, iob);
1568 }
1569
1570 static int
1571 qeth_check_idx_response(unsigned char *buffer)
1572 {
1573 if (!buffer)
1574 return 0;
1575
1576 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1577 if ((buffer[2] & 0xc0) == 0xc0) {
1578 PRINT_WARN("received an IDX TERMINATE "
1579 "with cause code 0x%02x%s\n",
1580 buffer[4],
1581 ((buffer[4] == 0x22) ?
1582 " -- try another portname" : ""));
1583 QETH_DBF_TEXT(trace, 2, "ckidxres");
1584 QETH_DBF_TEXT(trace, 2, " idxterm");
1585 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO);
1586 return -EIO;
1587 }
1588 return 0;
1589 }
1590
1591 static void
1592 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1593 {
1594 struct qeth_card *card;
1595 __u16 temp;
1596
1597 QETH_DBF_TEXT(setup , 2, "idxrdcb");
1598 if (channel->state == CH_STATE_DOWN) {
1599 channel->state = CH_STATE_ACTIVATING;
1600 goto out;
1601 }
1602
1603 card = CARD_FROM_CDEV(channel->ccwdev);
1604 if (qeth_check_idx_response(iob->data)) {
1605 goto out;
1606 }
1607 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1608 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1609 PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1610 "adapter exclusively used by another host\n",
1611 CARD_RDEV_ID(card));
1612 else
1613 PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1614 "negative reply\n", CARD_RDEV_ID(card));
1615 goto out;
1616 }
1617
1618 /**
1619 * temporary fix for microcode bug
1620 * to revert it,replace OR by AND
1621 */
1622 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1623 (card->info.type == QETH_CARD_TYPE_OSAE) )
1624 card->info.portname_required = 1;
1625
1626 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1627 if (temp != qeth_peer_func_level(card->info.func_level)) {
1628 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1629 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1630 CARD_RDEV_ID(card), card->info.func_level, temp);
1631 goto out;
1632 }
1633 memcpy(&card->token.issuer_rm_r,
1634 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1635 QETH_MPC_TOKEN_LENGTH);
1636 memcpy(&card->info.mcl_level[0],
1637 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1638 channel->state = CH_STATE_UP;
1639 out:
1640 qeth_release_buffer(channel,iob);
1641 }
1642
1643 static int
1644 qeth_issue_next_read(struct qeth_card *card)
1645 {
1646 int rc;
1647 struct qeth_cmd_buffer *iob;
1648
1649 QETH_DBF_TEXT(trace,5,"issnxrd");
1650 if (card->read.state != CH_STATE_UP)
1651 return -EIO;
1652 iob = qeth_get_buffer(&card->read);
1653 if (!iob) {
1654 PRINT_WARN("issue_next_read failed: no iob available!\n");
1655 return -ENOMEM;
1656 }
1657 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1658 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1659 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1660 (addr_t) iob, 0, 0);
1661 if (rc) {
1662 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1663 atomic_set(&card->read.irq_pending, 0);
1664 qeth_schedule_recovery(card);
1665 wake_up(&card->wait_q);
1666 }
1667 return rc;
1668 }
1669
1670 static struct qeth_reply *
1671 qeth_alloc_reply(struct qeth_card *card)
1672 {
1673 struct qeth_reply *reply;
1674
1675 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1676 if (reply){
1677 atomic_set(&reply->refcnt, 1);
1678 atomic_set(&reply->received, 0);
1679 reply->card = card;
1680 };
1681 return reply;
1682 }
1683
1684 static void
1685 qeth_get_reply(struct qeth_reply *reply)
1686 {
1687 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1688 atomic_inc(&reply->refcnt);
1689 }
1690
1691 static void
1692 qeth_put_reply(struct qeth_reply *reply)
1693 {
1694 WARN_ON(atomic_read(&reply->refcnt) <= 0);
1695 if (atomic_dec_and_test(&reply->refcnt))
1696 kfree(reply);
1697 }
1698
1699 static void
1700 qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, struct qeth_card *card)
1701 {
1702 int rc;
1703 int com;
1704 char * ipa_name;
1705
1706 com = cmd->hdr.command;
1707 rc = cmd->hdr.return_code;
1708 ipa_name = qeth_get_ipa_cmd_name(com);
1709
1710 PRINT_ERR("%s(x%X) for %s returned x%X \"%s\"\n", ipa_name, com,
1711 QETH_CARD_IFNAME(card), rc, qeth_get_ipa_msg(rc));
1712 }
1713
1714 static struct qeth_ipa_cmd *
1715 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1716 {
1717 struct qeth_ipa_cmd *cmd = NULL;
1718
1719 QETH_DBF_TEXT(trace,5,"chkipad");
1720 if (IS_IPA(iob->data)){
1721 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1722 if (IS_IPA_REPLY(cmd)) {
1723 if (cmd->hdr.return_code)
1724 qeth_issue_ipa_msg(cmd, card);
1725 return cmd;
1726 }
1727 else {
1728 switch (cmd->hdr.command) {
1729 case IPA_CMD_STOPLAN:
1730 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1731 "there is a network problem or "
1732 "someone pulled the cable or "
1733 "disabled the port.\n",
1734 QETH_CARD_IFNAME(card),
1735 card->info.chpid);
1736 card->lan_online = 0;
1737 if (card->dev && netif_carrier_ok(card->dev))
1738 netif_carrier_off(card->dev);
1739 return NULL;
1740 case IPA_CMD_STARTLAN:
1741 PRINT_INFO("Link reestablished on %s "
1742 "(CHPID 0x%X). Scheduling "
1743 "IP address reset.\n",
1744 QETH_CARD_IFNAME(card),
1745 card->info.chpid);
1746 netif_carrier_on(card->dev);
1747 qeth_schedule_recovery(card);
1748 return NULL;
1749 case IPA_CMD_MODCCID:
1750 return cmd;
1751 case IPA_CMD_REGISTER_LOCAL_ADDR:
1752 QETH_DBF_TEXT(trace,3, "irla");
1753 break;
1754 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1755 QETH_DBF_TEXT(trace,3, "urla");
1756 break;
1757 default:
1758 PRINT_WARN("Received data is IPA "
1759 "but not a reply!\n");
1760 break;
1761 }
1762 }
1763 }
1764 return cmd;
1765 }
1766
1767 /**
1768 * wake all waiting ipa commands
1769 */
1770 static void
1771 qeth_clear_ipacmd_list(struct qeth_card *card)
1772 {
1773 struct qeth_reply *reply, *r;
1774 unsigned long flags;
1775
1776 QETH_DBF_TEXT(trace, 4, "clipalst");
1777
1778 spin_lock_irqsave(&card->lock, flags);
1779 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1780 qeth_get_reply(reply);
1781 reply->rc = -EIO;
1782 atomic_inc(&reply->received);
1783 list_del_init(&reply->list);
1784 wake_up(&reply->wait_q);
1785 qeth_put_reply(reply);
1786 }
1787 spin_unlock_irqrestore(&card->lock, flags);
1788 }
1789
1790 static void
1791 qeth_send_control_data_cb(struct qeth_channel *channel,
1792 struct qeth_cmd_buffer *iob)
1793 {
1794 struct qeth_card *card;
1795 struct qeth_reply *reply, *r;
1796 struct qeth_ipa_cmd *cmd;
1797 unsigned long flags;
1798 int keep_reply;
1799
1800 QETH_DBF_TEXT(trace,4,"sndctlcb");
1801
1802 card = CARD_FROM_CDEV(channel->ccwdev);
1803 if (qeth_check_idx_response(iob->data)) {
1804 qeth_clear_ipacmd_list(card);
1805 qeth_schedule_recovery(card);
1806 goto out;
1807 }
1808
1809 cmd = qeth_check_ipa_data(card, iob);
1810 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1811 goto out;
1812 /*in case of OSN : check if cmd is set */
1813 if (card->info.type == QETH_CARD_TYPE_OSN &&
1814 cmd &&
1815 cmd->hdr.command != IPA_CMD_STARTLAN &&
1816 card->osn_info.assist_cb != NULL) {
1817 card->osn_info.assist_cb(card->dev, cmd);
1818 goto out;
1819 }
1820
1821 spin_lock_irqsave(&card->lock, flags);
1822 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1823 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1824 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1825 qeth_get_reply(reply);
1826 list_del_init(&reply->list);
1827 spin_unlock_irqrestore(&card->lock, flags);
1828 keep_reply = 0;
1829 if (reply->callback != NULL) {
1830 if (cmd) {
1831 reply->offset = (__u16)((char*)cmd -
1832 (char *)iob->data);
1833 keep_reply = reply->callback(card,
1834 reply,
1835 (unsigned long)cmd);
1836 } else
1837 keep_reply = reply->callback(card,
1838 reply,
1839 (unsigned long)iob);
1840 }
1841 if (cmd)
1842 reply->rc = (u16) cmd->hdr.return_code;
1843 else if (iob->rc)
1844 reply->rc = iob->rc;
1845 if (keep_reply) {
1846 spin_lock_irqsave(&card->lock, flags);
1847 list_add_tail(&reply->list,
1848 &card->cmd_waiter_list);
1849 spin_unlock_irqrestore(&card->lock, flags);
1850 } else {
1851 atomic_inc(&reply->received);
1852 wake_up(&reply->wait_q);
1853 }
1854 qeth_put_reply(reply);
1855 goto out;
1856 }
1857 }
1858 spin_unlock_irqrestore(&card->lock, flags);
1859 out:
1860 memcpy(&card->seqno.pdu_hdr_ack,
1861 QETH_PDU_HEADER_SEQ_NO(iob->data),
1862 QETH_SEQ_NO_LENGTH);
1863 qeth_release_buffer(channel,iob);
1864 }
1865
1866 static void
1867 qeth_prepare_control_data(struct qeth_card *card, int len,
1868 struct qeth_cmd_buffer *iob)
1869 {
1870 qeth_setup_ccw(&card->write,iob->data,len);
1871 iob->callback = qeth_release_buffer;
1872
1873 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1874 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1875 card->seqno.trans_hdr++;
1876 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1877 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1878 card->seqno.pdu_hdr++;
1879 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1880 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1881 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1882 }
1883
1884 static int
1885 qeth_send_control_data(struct qeth_card *card, int len,
1886 struct qeth_cmd_buffer *iob,
1887 int (*reply_cb)
1888 (struct qeth_card *, struct qeth_reply*, unsigned long),
1889 void *reply_param)
1890
1891 {
1892 int rc;
1893 unsigned long flags;
1894 struct qeth_reply *reply = NULL;
1895 unsigned long timeout;
1896
1897 QETH_DBF_TEXT(trace, 2, "sendctl");
1898
1899 reply = qeth_alloc_reply(card);
1900 if (!reply) {
1901 PRINT_WARN("Could no alloc qeth_reply!\n");
1902 return -ENOMEM;
1903 }
1904 reply->callback = reply_cb;
1905 reply->param = reply_param;
1906 if (card->state == CARD_STATE_DOWN)
1907 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1908 else
1909 reply->seqno = card->seqno.ipa++;
1910 init_waitqueue_head(&reply->wait_q);
1911 spin_lock_irqsave(&card->lock, flags);
1912 list_add_tail(&reply->list, &card->cmd_waiter_list);
1913 spin_unlock_irqrestore(&card->lock, flags);
1914 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1915
1916 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1917 qeth_prepare_control_data(card, len, iob);
1918
1919 if (IS_IPA(iob->data))
1920 timeout = jiffies + QETH_IPA_TIMEOUT;
1921 else
1922 timeout = jiffies + QETH_TIMEOUT;
1923
1924 QETH_DBF_TEXT(trace, 6, "noirqpnd");
1925 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1926 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1927 (addr_t) iob, 0, 0);
1928 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1929 if (rc){
1930 PRINT_WARN("qeth_send_control_data: "
1931 "ccw_device_start rc = %i\n", rc);
1932 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1933 spin_lock_irqsave(&card->lock, flags);
1934 list_del_init(&reply->list);
1935 qeth_put_reply(reply);
1936 spin_unlock_irqrestore(&card->lock, flags);
1937 qeth_release_buffer(iob->channel, iob);
1938 atomic_set(&card->write.irq_pending, 0);
1939 wake_up(&card->wait_q);
1940 return rc;
1941 }
1942 while (!atomic_read(&reply->received)) {
1943 if (time_after(jiffies, timeout)) {
1944 spin_lock_irqsave(&reply->card->lock, flags);
1945 list_del_init(&reply->list);
1946 spin_unlock_irqrestore(&reply->card->lock, flags);
1947 reply->rc = -ETIME;
1948 atomic_inc(&reply->received);
1949 wake_up(&reply->wait_q);
1950 }
1951 cpu_relax();
1952 };
1953 rc = reply->rc;
1954 qeth_put_reply(reply);
1955 return rc;
1956 }
1957
1958 static int
1959 qeth_osn_send_control_data(struct qeth_card *card, int len,
1960 struct qeth_cmd_buffer *iob)
1961 {
1962 unsigned long flags;
1963 int rc = 0;
1964
1965 QETH_DBF_TEXT(trace, 5, "osndctrd");
1966
1967 wait_event(card->wait_q,
1968 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1969 qeth_prepare_control_data(card, len, iob);
1970 QETH_DBF_TEXT(trace, 6, "osnoirqp");
1971 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1972 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1973 (addr_t) iob, 0, 0);
1974 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1975 if (rc){
1976 PRINT_WARN("qeth_osn_send_control_data: "
1977 "ccw_device_start rc = %i\n", rc);
1978 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1979 qeth_release_buffer(iob->channel, iob);
1980 atomic_set(&card->write.irq_pending, 0);
1981 wake_up(&card->wait_q);
1982 }
1983 return rc;
1984 }
1985
1986 static inline void
1987 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1988 char prot_type)
1989 {
1990 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1991 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1992 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1993 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1994 }
1995
1996 static int
1997 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1998 int data_len)
1999 {
2000 u16 s1, s2;
2001
2002 QETH_DBF_TEXT(trace,4,"osndipa");
2003
2004 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
2005 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
2006 s2 = (u16)data_len;
2007 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
2008 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
2009 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
2010 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
2011 return qeth_osn_send_control_data(card, s1, iob);
2012 }
2013
2014 static int
2015 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2016 int (*reply_cb)
2017 (struct qeth_card *,struct qeth_reply*, unsigned long),
2018 void *reply_param)
2019 {
2020 int rc;
2021 char prot_type;
2022
2023 QETH_DBF_TEXT(trace,4,"sendipa");
2024
2025 if (card->options.layer2)
2026 if (card->info.type == QETH_CARD_TYPE_OSN)
2027 prot_type = QETH_PROT_OSN2;
2028 else
2029 prot_type = QETH_PROT_LAYER2;
2030 else
2031 prot_type = QETH_PROT_TCPIP;
2032 qeth_prepare_ipa_cmd(card,iob,prot_type);
2033 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
2034 reply_cb, reply_param);
2035 return rc;
2036 }
2037
2038
2039 static int
2040 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2041 unsigned long data)
2042 {
2043 struct qeth_cmd_buffer *iob;
2044
2045 QETH_DBF_TEXT(setup, 2, "cmenblcb");
2046
2047 iob = (struct qeth_cmd_buffer *) data;
2048 memcpy(&card->token.cm_filter_r,
2049 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2050 QETH_MPC_TOKEN_LENGTH);
2051 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2052 return 0;
2053 }
2054
2055 static int
2056 qeth_cm_enable(struct qeth_card *card)
2057 {
2058 int rc;
2059 struct qeth_cmd_buffer *iob;
2060
2061 QETH_DBF_TEXT(setup,2,"cmenable");
2062
2063 iob = qeth_wait_for_buffer(&card->write);
2064 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2065 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2066 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2067 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2068 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2069
2070 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2071 qeth_cm_enable_cb, NULL);
2072 return rc;
2073 }
2074
2075 static int
2076 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2077 unsigned long data)
2078 {
2079
2080 struct qeth_cmd_buffer *iob;
2081
2082 QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2083
2084 iob = (struct qeth_cmd_buffer *) data;
2085 memcpy(&card->token.cm_connection_r,
2086 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2087 QETH_MPC_TOKEN_LENGTH);
2088 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2089 return 0;
2090 }
2091
2092 static int
2093 qeth_cm_setup(struct qeth_card *card)
2094 {
2095 int rc;
2096 struct qeth_cmd_buffer *iob;
2097
2098 QETH_DBF_TEXT(setup,2,"cmsetup");
2099
2100 iob = qeth_wait_for_buffer(&card->write);
2101 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2102 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2103 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2104 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2105 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2106 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2107 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2108 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2109 qeth_cm_setup_cb, NULL);
2110 return rc;
2111
2112 }
2113
2114 static int
2115 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2116 unsigned long data)
2117 {
2118
2119 __u16 mtu, framesize;
2120 __u16 len;
2121 __u8 link_type;
2122 struct qeth_cmd_buffer *iob;
2123
2124 QETH_DBF_TEXT(setup, 2, "ulpenacb");
2125
2126 iob = (struct qeth_cmd_buffer *) data;
2127 memcpy(&card->token.ulp_filter_r,
2128 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2129 QETH_MPC_TOKEN_LENGTH);
2130 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2131 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2132 mtu = qeth_get_mtu_outof_framesize(framesize);
2133 if (!mtu) {
2134 iob->rc = -EINVAL;
2135 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2136 return 0;
2137 }
2138 card->info.max_mtu = mtu;
2139 card->info.initial_mtu = mtu;
2140 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2141 } else {
2142 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2143 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2144 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2145 }
2146
2147 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2148 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2149 memcpy(&link_type,
2150 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2151 card->info.link_type = link_type;
2152 } else
2153 card->info.link_type = 0;
2154 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2155 return 0;
2156 }
2157
2158 static int
2159 qeth_ulp_enable(struct qeth_card *card)
2160 {
2161 int rc;
2162 char prot_type;
2163 struct qeth_cmd_buffer *iob;
2164
2165 /*FIXME: trace view callbacks*/
2166 QETH_DBF_TEXT(setup,2,"ulpenabl");
2167
2168 iob = qeth_wait_for_buffer(&card->write);
2169 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2170
2171 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2172 (__u8) card->info.portno;
2173 if (card->options.layer2)
2174 if (card->info.type == QETH_CARD_TYPE_OSN)
2175 prot_type = QETH_PROT_OSN2;
2176 else
2177 prot_type = QETH_PROT_LAYER2;
2178 else
2179 prot_type = QETH_PROT_TCPIP;
2180
2181 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2182 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2183 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2184 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2185 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2186 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2187 card->info.portname, 9);
2188 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2189 qeth_ulp_enable_cb, NULL);
2190 return rc;
2191
2192 }
2193
2194 static int
2195 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2196 unsigned long data)
2197 {
2198 struct qeth_cmd_buffer *iob;
2199
2200 QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2201
2202 iob = (struct qeth_cmd_buffer *) data;
2203 memcpy(&card->token.ulp_connection_r,
2204 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2205 QETH_MPC_TOKEN_LENGTH);
2206 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc);
2207 return 0;
2208 }
2209
2210 static int
2211 qeth_ulp_setup(struct qeth_card *card)
2212 {
2213 int rc;
2214 __u16 temp;
2215 struct qeth_cmd_buffer *iob;
2216 struct ccw_dev_id dev_id;
2217
2218 QETH_DBF_TEXT(setup,2,"ulpsetup");
2219
2220 iob = qeth_wait_for_buffer(&card->write);
2221 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2222
2223 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2224 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2225 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2226 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2227 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2228 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2229
2230 ccw_device_get_id(CARD_DDEV(card), &dev_id);
2231 memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2232 temp = (card->info.cula << 8) + card->info.unit_addr2;
2233 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2234 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2235 qeth_ulp_setup_cb, NULL);
2236 return rc;
2237 }
2238
2239 static inline int
2240 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2241 unsigned int siga_error, const char *dbftext)
2242 {
2243 if (qdio_error || siga_error) {
2244 QETH_DBF_TEXT(trace, 2, dbftext);
2245 QETH_DBF_TEXT(qerr, 2, dbftext);
2246 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2247 buf->element[15].flags & 0xff);
2248 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2249 buf->element[14].flags & 0xff);
2250 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2251 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2252 return 1;
2253 }
2254 return 0;
2255 }
2256
2257 static struct sk_buff *
2258 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2259 {
2260 struct sk_buff* skb;
2261 int add_len;
2262
2263 add_len = 0;
2264 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2265 add_len = sizeof(struct qeth_hdr);
2266 #ifdef CONFIG_QETH_VLAN
2267 else
2268 add_len = VLAN_HLEN;
2269 #endif
2270 skb = dev_alloc_skb(length + add_len);
2271 if (skb && add_len)
2272 skb_reserve(skb, add_len);
2273 return skb;
2274 }
2275
2276 static inline int
2277 qeth_create_skb_frag(struct qdio_buffer_element *element,
2278 struct sk_buff **pskb,
2279 int offset, int *pfrag, int data_len)
2280 {
2281 struct page *page = virt_to_page(element->addr);
2282 if (*pfrag == 0) {
2283 /* the upper protocol layers assume that there is data in the
2284 * skb itself. Copy a small amount (64 bytes) to make them
2285 * happy. */
2286 *pskb = dev_alloc_skb(64 + QETH_FAKE_LL_LEN_ETH);
2287 if (!(*pskb))
2288 return -ENOMEM;
2289 skb_reserve(*pskb, QETH_FAKE_LL_LEN_ETH);
2290 if (data_len <= 64) {
2291 memcpy(skb_put(*pskb, data_len), element->addr + offset,
2292 data_len);
2293 } else {
2294 get_page(page);
2295 memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
2296 skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
2297 data_len - 64);
2298 (*pskb)->data_len += data_len - 64;
2299 (*pskb)->len += data_len - 64;
2300 (*pskb)->truesize += data_len - 64;
2301 }
2302 } else {
2303 get_page(page);
2304 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
2305 (*pskb)->data_len += data_len;
2306 (*pskb)->len += data_len;
2307 (*pskb)->truesize += data_len;
2308 }
2309 (*pfrag)++;
2310 return 0;
2311 }
2312
2313 static inline struct qeth_buffer_pool_entry *
2314 qeth_find_free_buffer_pool_entry(struct qeth_card *card)
2315 {
2316 struct list_head *plh;
2317 struct qeth_buffer_pool_entry *entry;
2318 int i, free;
2319 struct page *page;
2320
2321 if (list_empty(&card->qdio.in_buf_pool.entry_list))
2322 return NULL;
2323
2324 list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2325 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2326 free = 1;
2327 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2328 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2329 free = 0;
2330 break;
2331 }
2332 }
2333 if (free) {
2334 list_del_init(&entry->list);
2335 return entry;
2336 }
2337 }
2338
2339 /* no free buffer in pool so take first one and swap pages */
2340 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2341 struct qeth_buffer_pool_entry, list);
2342 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2343 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2344 page = alloc_page(GFP_ATOMIC|GFP_DMA);
2345 if (!page) {
2346 return NULL;
2347 } else {
2348 free_page((unsigned long)entry->elements[i]);
2349 entry->elements[i] = page_address(page);
2350 if (card->options.performance_stats)
2351 card->perf_stats.sg_alloc_page_rx++;
2352 }
2353 }
2354 }
2355 list_del_init(&entry->list);
2356 return entry;
2357 }
2358
2359 static struct sk_buff *
2360 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2361 struct qdio_buffer_element **__element, int *__offset,
2362 struct qeth_hdr **hdr)
2363 {
2364 struct qdio_buffer_element *element = *__element;
2365 int offset = *__offset;
2366 struct sk_buff *skb = NULL;
2367 int skb_len;
2368 void *data_ptr;
2369 int data_len;
2370 int use_rx_sg = 0;
2371 int frag = 0;
2372
2373 QETH_DBF_TEXT(trace,6,"nextskb");
2374 /* qeth_hdr must not cross element boundaries */
2375 if (element->length < offset + sizeof(struct qeth_hdr)){
2376 if (qeth_is_last_sbale(element))
2377 return NULL;
2378 element++;
2379 offset = 0;
2380 if (element->length < sizeof(struct qeth_hdr))
2381 return NULL;
2382 }
2383 *hdr = element->addr + offset;
2384
2385 offset += sizeof(struct qeth_hdr);
2386 if (card->options.layer2)
2387 if (card->info.type == QETH_CARD_TYPE_OSN)
2388 skb_len = (*hdr)->hdr.osn.pdu_length;
2389 else
2390 skb_len = (*hdr)->hdr.l2.pkt_length;
2391 else
2392 skb_len = (*hdr)->hdr.l3.length;
2393
2394 if (!skb_len)
2395 return NULL;
2396 if ((skb_len >= card->options.rx_sg_cb) &&
2397 (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
2398 (!atomic_read(&card->force_alloc_skb))) {
2399 use_rx_sg = 1;
2400 } else {
2401 if (card->options.fake_ll) {
2402 if (card->dev->type == ARPHRD_IEEE802_TR) {
2403 if (!(skb = qeth_get_skb(skb_len +
2404 QETH_FAKE_LL_LEN_TR, *hdr)))
2405 goto no_mem;
2406 skb_reserve(skb, QETH_FAKE_LL_LEN_TR);
2407 } else {
2408 if (!(skb = qeth_get_skb(skb_len +
2409 QETH_FAKE_LL_LEN_ETH, *hdr)))
2410 goto no_mem;
2411 skb_reserve(skb, QETH_FAKE_LL_LEN_ETH);
2412 }
2413 } else {
2414 skb = qeth_get_skb(skb_len, *hdr);
2415 if (!skb)
2416 goto no_mem;
2417 }
2418 }
2419
2420 data_ptr = element->addr + offset;
2421 while (skb_len) {
2422 data_len = min(skb_len, (int)(element->length - offset));
2423 if (data_len) {
2424 if (use_rx_sg) {
2425 if (qeth_create_skb_frag(element, &skb, offset,
2426 &frag, data_len))
2427 goto no_mem;
2428 } else {
2429 memcpy(skb_put(skb, data_len), data_ptr,
2430 data_len);
2431 }
2432 }
2433 skb_len -= data_len;
2434 if (skb_len){
2435 if (qeth_is_last_sbale(element)){
2436 QETH_DBF_TEXT(trace,4,"unexeob");
2437 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2438 QETH_DBF_TEXT(qerr,2,"unexeob");
2439 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2440 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2441 dev_kfree_skb_any(skb);
2442 card->stats.rx_errors++;
2443 return NULL;
2444 }
2445 element++;
2446 offset = 0;
2447 data_ptr = element->addr;
2448 } else {
2449 offset += data_len;
2450 }
2451 }
2452 *__element = element;
2453 *__offset = offset;
2454 if (use_rx_sg && card->options.performance_stats) {
2455 card->perf_stats.sg_skbs_rx++;
2456 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
2457 }
2458 return skb;
2459 no_mem:
2460 if (net_ratelimit()){
2461 PRINT_WARN("No memory for packet received on %s.\n",
2462 QETH_CARD_IFNAME(card));
2463 QETH_DBF_TEXT(trace,2,"noskbmem");
2464 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2465 }
2466 card->stats.rx_dropped++;
2467 return NULL;
2468 }
2469
2470 static __be16
2471 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2472 {
2473 struct qeth_card *card;
2474 struct ethhdr *eth;
2475
2476 QETH_DBF_TEXT(trace,6,"typtrans");
2477
2478 card = (struct qeth_card *)dev->priv;
2479 #ifdef CONFIG_TR
2480 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2481 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2482 return tr_type_trans(skb,dev);
2483 #endif /* CONFIG_TR */
2484 skb_reset_mac_header(skb);
2485 skb_pull(skb, ETH_HLEN );
2486 eth = eth_hdr(skb);
2487
2488 if (*eth->h_dest & 1) {
2489 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2490 skb->pkt_type = PACKET_BROADCAST;
2491 else
2492 skb->pkt_type = PACKET_MULTICAST;
2493 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2494 skb->pkt_type = PACKET_OTHERHOST;
2495
2496 if (ntohs(eth->h_proto) >= 1536)
2497 return eth->h_proto;
2498 if (*(unsigned short *) (skb->data) == 0xFFFF)
2499 return htons(ETH_P_802_3);
2500 return htons(ETH_P_802_2);
2501 }
2502
2503 static void
2504 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2505 struct qeth_hdr *hdr)
2506 {
2507 struct trh_hdr *fake_hdr;
2508 struct trllc *fake_llc;
2509 struct iphdr *ip_hdr;
2510
2511 QETH_DBF_TEXT(trace,5,"skbfktr");
2512 skb_set_mac_header(skb, (int)-QETH_FAKE_LL_LEN_TR);
2513 /* this is a fake ethernet header */
2514 fake_hdr = tr_hdr(skb);
2515
2516 /* the destination MAC address */
2517 switch (skb->pkt_type){
2518 case PACKET_MULTICAST:
2519 switch (skb->protocol){
2520 #ifdef CONFIG_QETH_IPV6
2521 case __constant_htons(ETH_P_IPV6):
2522 ndisc_mc_map((struct in6_addr *)
2523 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2524 fake_hdr->daddr, card->dev, 0);
2525 break;
2526 #endif /* CONFIG_QETH_IPV6 */
2527 case __constant_htons(ETH_P_IP):
2528 ip_hdr = (struct iphdr *)skb->data;
2529 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2530 break;
2531 default:
2532 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2533 }
2534 break;
2535 case PACKET_BROADCAST:
2536 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2537 break;
2538 default:
2539 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2540 }
2541 /* the source MAC address */
2542 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2543 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2544 else
2545 memset(fake_hdr->saddr, 0, TR_ALEN);
2546 fake_hdr->rcf=0;
2547 fake_llc = (struct trllc*)&(fake_hdr->rcf);
2548 fake_llc->dsap = EXTENDED_SAP;
2549 fake_llc->ssap = EXTENDED_SAP;
2550 fake_llc->llc = UI_CMD;
2551 fake_llc->protid[0] = 0;
2552 fake_llc->protid[1] = 0;
2553 fake_llc->protid[2] = 0;
2554 fake_llc->ethertype = ETH_P_IP;
2555 }
2556
2557 static void
2558 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2559 struct qeth_hdr *hdr)
2560 {
2561 struct ethhdr *fake_hdr;
2562 struct iphdr *ip_hdr;
2563
2564 QETH_DBF_TEXT(trace,5,"skbfketh");
2565 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
2566 /* this is a fake ethernet header */
2567 fake_hdr = eth_hdr(skb);
2568
2569 /* the destination MAC address */
2570 switch (skb->pkt_type){
2571 case PACKET_MULTICAST:
2572 switch (skb->protocol){
2573 #ifdef CONFIG_QETH_IPV6
2574 case __constant_htons(ETH_P_IPV6):
2575 ndisc_mc_map((struct in6_addr *)
2576 skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2577 fake_hdr->h_dest, card->dev, 0);
2578 break;
2579 #endif /* CONFIG_QETH_IPV6 */
2580 case __constant_htons(ETH_P_IP):
2581 ip_hdr = (struct iphdr *)skb->data;
2582 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2583 break;
2584 default:
2585 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2586 }
2587 break;
2588 case PACKET_BROADCAST:
2589 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2590 break;
2591 default:
2592 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2593 }
2594 /* the source MAC address */
2595 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2596 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2597 else
2598 memset(fake_hdr->h_source, 0, ETH_ALEN);
2599 /* the protocol */
2600 fake_hdr->h_proto = skb->protocol;
2601 }
2602
2603 static inline void
2604 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2605 struct qeth_hdr *hdr)
2606 {
2607 if (card->dev->type == ARPHRD_IEEE802_TR)
2608 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2609 else
2610 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2611 }
2612
2613 static inline void
2614 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2615 struct qeth_hdr *hdr)
2616 {
2617 skb->pkt_type = PACKET_HOST;
2618 skb->protocol = qeth_type_trans(skb, skb->dev);
2619 if (card->options.checksum_type == NO_CHECKSUMMING)
2620 skb->ip_summed = CHECKSUM_UNNECESSARY;
2621 else
2622 skb->ip_summed = CHECKSUM_NONE;
2623 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2624 }
2625
2626 static __u16
2627 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2628 struct qeth_hdr *hdr)
2629 {
2630 unsigned short vlan_id = 0;
2631 #ifdef CONFIG_QETH_IPV6
2632 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2633 skb->pkt_type = PACKET_HOST;
2634 skb->protocol = qeth_type_trans(skb, card->dev);
2635 return 0;
2636 }
2637 #endif /* CONFIG_QETH_IPV6 */
2638 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2639 ETH_P_IP);
2640 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2641 case QETH_CAST_UNICAST:
2642 skb->pkt_type = PACKET_HOST;
2643 break;
2644 case QETH_CAST_MULTICAST:
2645 skb->pkt_type = PACKET_MULTICAST;
2646 card->stats.multicast++;
2647 break;
2648 case QETH_CAST_BROADCAST:
2649 skb->pkt_type = PACKET_BROADCAST;
2650 card->stats.multicast++;
2651 break;
2652 case QETH_CAST_ANYCAST:
2653 case QETH_CAST_NOCAST:
2654 default:
2655 skb->pkt_type = PACKET_HOST;
2656 }
2657
2658 if (hdr->hdr.l3.ext_flags &
2659 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2660 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2661 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2662 }
2663
2664 if (card->options.fake_ll)
2665 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2666 else
2667 skb_reset_mac_header(skb);
2668 skb->ip_summed = card->options.checksum_type;
2669 if (card->options.checksum_type == HW_CHECKSUMMING){
2670 if ( (hdr->hdr.l3.ext_flags &
2671 (QETH_HDR_EXT_CSUM_HDR_REQ |
2672 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2673 (QETH_HDR_EXT_CSUM_HDR_REQ |
2674 QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2675 skb->ip_summed = CHECKSUM_UNNECESSARY;
2676 else
2677 skb->ip_summed = SW_CHECKSUMMING;
2678 }
2679 return vlan_id;
2680 }
2681
2682 static void
2683 qeth_process_inbound_buffer(struct qeth_card *card,
2684 struct qeth_qdio_buffer *buf, int index)
2685 {
2686 struct qdio_buffer_element *element;
2687 struct sk_buff *skb;
2688 struct qeth_hdr *hdr;
2689 int offset;
2690 int rxrc;
2691 __u16 vlan_tag = 0;
2692
2693 /* get first element of current buffer */
2694 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2695 offset = 0;
2696 if (card->options.performance_stats)
2697 card->perf_stats.bufs_rec++;
2698 while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2699 &offset, &hdr))) {
2700 skb->dev = card->dev;
2701 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2702 qeth_layer2_rebuild_skb(card, skb, hdr);
2703 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2704 vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2705 else if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN) {
2706 skb_push(skb, sizeof(struct qeth_hdr));
2707 skb_copy_to_linear_data(skb, hdr,
2708 sizeof(struct qeth_hdr));
2709 } else { /* unknown header type */
2710 dev_kfree_skb_any(skb);
2711 QETH_DBF_TEXT(trace, 3, "inbunkno");
2712 QETH_DBF_HEX(control, 3, hdr, QETH_DBF_CONTROL_LEN);
2713 continue;
2714 }
2715 /* is device UP ? */
2716 if (!(card->dev->flags & IFF_UP)){
2717 dev_kfree_skb_any(skb);
2718 continue;
2719 }
2720 if (card->info.type == QETH_CARD_TYPE_OSN)
2721 rxrc = card->osn_info.data_cb(skb);
2722 else
2723 #ifdef CONFIG_QETH_VLAN
2724 if (vlan_tag)
2725 if (card->vlangrp)
2726 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2727 else {
2728 dev_kfree_skb_any(skb);
2729 continue;
2730 }
2731 else
2732 #endif
2733 rxrc = netif_rx(skb);
2734 card->dev->last_rx = jiffies;
2735 card->stats.rx_packets++;
2736 card->stats.rx_bytes += skb->len;
2737 }
2738 }
2739
2740 static int
2741 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2742 {
2743 struct qeth_buffer_pool_entry *pool_entry;
2744 int i;
2745
2746 pool_entry = qeth_find_free_buffer_pool_entry(card);
2747 if (!pool_entry)
2748 return 1;
2749 /*
2750 * since the buffer is accessed only from the input_tasklet
2751 * there shouldn't be a need to synchronize; also, since we use
2752 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2753 * buffers
2754 */
2755 BUG_ON(!pool_entry);
2756
2757 buf->pool_entry = pool_entry;
2758 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2759 buf->buffer->element[i].length = PAGE_SIZE;
2760 buf->buffer->element[i].addr = pool_entry->elements[i];
2761 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2762 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2763 else
2764 buf->buffer->element[i].flags = 0;
2765 }
2766 buf->state = QETH_QDIO_BUF_EMPTY;
2767 return 0;
2768 }
2769
2770 static void
2771 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2772 struct qeth_qdio_out_buffer *buf)
2773 {
2774 int i;
2775 struct sk_buff *skb;
2776
2777 /* is PCI flag set on buffer? */
2778 if (buf->buffer->element[0].flags & 0x40)
2779 atomic_dec(&queue->set_pci_flags_count);
2780
2781 while ((skb = skb_dequeue(&buf->skb_list))){
2782 atomic_dec(&skb->users);
2783 dev_kfree_skb_any(skb);
2784 }
2785 qeth_eddp_buf_release_contexts(buf);
2786 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2787 buf->buffer->element[i].length = 0;
2788 buf->buffer->element[i].addr = NULL;
2789 buf->buffer->element[i].flags = 0;
2790 }
2791 buf->next_element_to_fill = 0;
2792 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2793 }
2794
2795 static void
2796 qeth_queue_input_buffer(struct qeth_card *card, int index)
2797 {
2798 struct qeth_qdio_q *queue = card->qdio.in_q;
2799 int count;
2800 int i;
2801 int rc;
2802 int newcount = 0;
2803
2804 QETH_DBF_TEXT(trace,6,"queinbuf");
2805 count = (index < queue->next_buf_to_init)?
2806 card->qdio.in_buf_pool.buf_count -
2807 (queue->next_buf_to_init - index) :
2808 card->qdio.in_buf_pool.buf_count -
2809 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2810 /* only requeue at a certain threshold to avoid SIGAs */
2811 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2812 for (i = queue->next_buf_to_init;
2813 i < queue->next_buf_to_init + count; ++i) {
2814 if (qeth_init_input_buffer(card,
2815 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2816 break;
2817 } else {
2818 newcount++;
2819 }
2820 }
2821
2822 if (newcount < count) {
2823 /* we are in memory shortage so we switch back to
2824 traditional skb allocation and drop packages */
2825 if (!atomic_read(&card->force_alloc_skb) &&
2826 net_ratelimit())
2827 PRINT_WARN("Switch to alloc skb\n");
2828 atomic_set(&card->force_alloc_skb, 3);
2829 count = newcount;
2830 } else {
2831 if ((atomic_read(&card->force_alloc_skb) == 1) &&
2832 net_ratelimit())
2833 PRINT_WARN("Switch to sg\n");
2834 atomic_add_unless(&card->force_alloc_skb, -1, 0);
2835 }
2836
2837 /*
2838 * according to old code it should be avoided to requeue all
2839 * 128 buffers in order to benefit from PCI avoidance.
2840 * this function keeps at least one buffer (the buffer at
2841 * 'index') un-requeued -> this buffer is the first buffer that
2842 * will be requeued the next time
2843 */
2844 if (card->options.performance_stats) {
2845 card->perf_stats.inbound_do_qdio_cnt++;
2846 card->perf_stats.inbound_do_qdio_start_time =
2847 qeth_get_micros();
2848 }
2849 rc = do_QDIO(CARD_DDEV(card),
2850 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2851 0, queue->next_buf_to_init, count, NULL);
2852 if (card->options.performance_stats)
2853 card->perf_stats.inbound_do_qdio_time +=
2854 qeth_get_micros() -
2855 card->perf_stats.inbound_do_qdio_start_time;
2856 if (rc){
2857 PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2858 "return %i (device %s).\n",
2859 rc, CARD_DDEV_ID(card));
2860 QETH_DBF_TEXT(trace,2,"qinberr");
2861 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2862 }
2863 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2864 QDIO_MAX_BUFFERS_PER_Q;
2865 }
2866 }
2867
2868 static inline void
2869 qeth_put_buffer_pool_entry(struct qeth_card *card,
2870 struct qeth_buffer_pool_entry *entry)
2871 {
2872 QETH_DBF_TEXT(trace, 6, "ptbfplen");
2873 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2874 }
2875
2876 static void
2877 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2878 unsigned int qdio_err, unsigned int siga_err,
2879 unsigned int queue, int first_element, int count,
2880 unsigned long card_ptr)
2881 {
2882 struct net_device *net_dev;
2883 struct qeth_card *card;
2884 struct qeth_qdio_buffer *buffer;
2885 int index;
2886 int i;
2887
2888 QETH_DBF_TEXT(trace, 6, "qdinput");
2889 card = (struct qeth_card *) card_ptr;
2890 net_dev = card->dev;
2891 if (card->options.performance_stats) {
2892 card->perf_stats.inbound_cnt++;
2893 card->perf_stats.inbound_start_time = qeth_get_micros();
2894 }
2895 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2896 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2897 QETH_DBF_TEXT(trace, 1,"qdinchk");
2898 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2899 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2900 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2901 qeth_schedule_recovery(card);
2902 return;
2903 }
2904 }
2905 for (i = first_element; i < (first_element + count); ++i) {
2906 index = i % QDIO_MAX_BUFFERS_PER_Q;
2907 buffer = &card->qdio.in_q->bufs[index];
2908 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2909 qeth_check_qdio_errors(buffer->buffer,
2910 qdio_err, siga_err,"qinerr")))
2911 qeth_process_inbound_buffer(card, buffer, index);
2912 /* clear buffer and give back to hardware */
2913 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2914 qeth_queue_input_buffer(card, index);
2915 }
2916 if (card->options.performance_stats)
2917 card->perf_stats.inbound_time += qeth_get_micros() -
2918 card->perf_stats.inbound_start_time;
2919 }
2920
2921 static int
2922 qeth_handle_send_error(struct qeth_card *card,
2923 struct qeth_qdio_out_buffer *buffer,
2924 unsigned int qdio_err, unsigned int siga_err)
2925 {
2926 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2927 int cc = siga_err & 3;
2928
2929 QETH_DBF_TEXT(trace, 6, "hdsnderr");
2930 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2931 switch (cc) {
2932 case 0:
2933 if (qdio_err){
2934 QETH_DBF_TEXT(trace, 1,"lnkfail");
2935 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2936 QETH_DBF_TEXT_(trace,1,"%04x %02x",
2937 (u16)qdio_err, (u8)sbalf15);
2938 return QETH_SEND_ERROR_LINK_FAILURE;
2939 }
2940 return QETH_SEND_ERROR_NONE;
2941 case 2:
2942 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2943 QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2944 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2945 return QETH_SEND_ERROR_KICK_IT;
2946 }
2947 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2948 return QETH_SEND_ERROR_RETRY;
2949 return QETH_SEND_ERROR_LINK_FAILURE;
2950 /* look at qdio_error and sbalf 15 */
2951 case 1:
2952 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2953 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2954 return QETH_SEND_ERROR_LINK_FAILURE;
2955 case 3:
2956 default:
2957 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2958 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2959 return QETH_SEND_ERROR_KICK_IT;
2960 }
2961 }
2962
2963 void
2964 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2965 int index, int count)
2966 {
2967 struct qeth_qdio_out_buffer *buf;
2968 int rc;
2969 int i;
2970 unsigned int qdio_flags;
2971
2972 QETH_DBF_TEXT(trace, 6, "flushbuf");
2973
2974 for (i = index; i < index + count; ++i) {
2975 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2976 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2977 SBAL_FLAGS_LAST_ENTRY;
2978
2979 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2980 continue;
2981
2982 if (!queue->do_pack){
2983 if ((atomic_read(&queue->used_buffers) >=
2984 (QETH_HIGH_WATERMARK_PACK -
2985 QETH_WATERMARK_PACK_FUZZ)) &&
2986 !atomic_read(&queue->set_pci_flags_count)){
2987 /* it's likely that we'll go to packing
2988 * mode soon */
2989 atomic_inc(&queue->set_pci_flags_count);
2990 buf->buffer->element[0].flags |= 0x40;
2991 }
2992 } else {
2993 if (!atomic_read(&queue->set_pci_flags_count)){
2994 /*
2995 * there's no outstanding PCI any more, so we
2996 * have to request a PCI to be sure that the PCI
2997 * will wake at some time in the future then we
2998 * can flush packed buffers that might still be
2999 * hanging around, which can happen if no
3000 * further send was requested by the stack
3001 */
3002 atomic_inc(&queue->set_pci_flags_count);
3003 buf->buffer->element[0].flags |= 0x40;
3004 }
3005 }
3006 }
3007
3008 queue->card->dev->trans_start = jiffies;
3009 if (queue->card->options.performance_stats) {
3010 queue->card->perf_stats.outbound_do_qdio_cnt++;
3011 queue->card->perf_stats.outbound_do_qdio_start_time =
3012 qeth_get_micros();
3013 }
3014 qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
3015 if (under_int)
3016 qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT;
3017 if (atomic_read(&queue->set_pci_flags_count))
3018 qdio_flags |= QDIO_FLAG_PCI_OUT;
3019 rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
3020 queue->queue_no, index, count, NULL);
3021 if (queue->card->options.performance_stats)
3022 queue->card->perf_stats.outbound_do_qdio_time +=
3023 qeth_get_micros() -
3024 queue->card->perf_stats.outbound_do_qdio_start_time;
3025 if (rc){
3026 QETH_DBF_TEXT(trace, 2, "flushbuf");
3027 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
3028 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
3029 queue->card->stats.tx_errors += count;
3030 /* this must not happen under normal circumstances. if it
3031 * happens something is really wrong -> recover */
3032 qeth_schedule_recovery(queue->card);
3033 return;
3034 }
3035 atomic_add(count, &queue->used_buffers);
3036 if (queue->card->options.performance_stats)
3037 queue->card->perf_stats.bufs_sent += count;
3038 }
3039
3040 /*
3041 * Switched to packing state if the number of used buffers on a queue
3042 * reaches a certain limit.
3043 */
3044 static void
3045 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3046 {
3047 if (!queue->do_pack) {
3048 if (atomic_read(&queue->used_buffers)
3049 >= QETH_HIGH_WATERMARK_PACK){
3050 /* switch non-PACKING -> PACKING */
3051 QETH_DBF_TEXT(trace, 6, "np->pack");
3052 if (queue->card->options.performance_stats)
3053 queue->card->perf_stats.sc_dp_p++;
3054 queue->do_pack = 1;
3055 }
3056 }
3057 }
3058
3059 /*
3060 * Switches from packing to non-packing mode. If there is a packing
3061 * buffer on the queue this buffer will be prepared to be flushed.
3062 * In that case 1 is returned to inform the caller. If no buffer
3063 * has to be flushed, zero is returned.
3064 */
3065 static int
3066 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3067 {
3068 struct qeth_qdio_out_buffer *buffer;
3069 int flush_count = 0;
3070
3071 if (queue->do_pack) {
3072 if (atomic_read(&queue->used_buffers)
3073 <= QETH_LOW_WATERMARK_PACK) {
3074 /* switch PACKING -> non-PACKING */
3075 QETH_DBF_TEXT(trace, 6, "pack->np");
3076 if (queue->card->options.performance_stats)
3077 queue->card->perf_stats.sc_p_dp++;
3078 queue->do_pack = 0;
3079 /* flush packing buffers */
3080 buffer = &queue->bufs[queue->next_buf_to_fill];
3081 if ((atomic_read(&buffer->state) ==
3082 QETH_QDIO_BUF_EMPTY) &&
3083 (buffer->next_element_to_fill > 0)) {
3084 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
3085 flush_count++;
3086 queue->next_buf_to_fill =
3087 (queue->next_buf_to_fill + 1) %
3088 QDIO_MAX_BUFFERS_PER_Q;
3089 }
3090 }
3091 }
3092 return flush_count;
3093 }
3094
3095 /*
3096 * Called to flush a packing buffer if no more pci flags are on the queue.
3097 * Checks if there is a packing buffer and prepares it to be flushed.
3098 * In that case returns 1, otherwise zero.
3099 */
3100 static int
3101 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
3102 {
3103 struct qeth_qdio_out_buffer *buffer;
3104
3105 buffer = &queue->bufs[queue->next_buf_to_fill];
3106 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3107 (buffer->next_element_to_fill > 0)){
3108 /* it's a packing buffer */
3109 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3110 queue->next_buf_to_fill =
3111 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3112 return 1;
3113 }
3114 return 0;
3115 }
3116
3117 static void
3118 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3119 {
3120 int index;
3121 int flush_cnt = 0;
3122 int q_was_packing = 0;
3123
3124 /*
3125 * check if weed have to switch to non-packing mode or if
3126 * we have to get a pci flag out on the queue
3127 */
3128 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3129 !atomic_read(&queue->set_pci_flags_count)){
3130 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3131 QETH_OUT_Q_UNLOCKED) {
3132 /*
3133 * If we get in here, there was no action in
3134 * do_send_packet. So, we check if there is a
3135 * packing buffer to be flushed here.
3136 */
3137 netif_stop_queue(queue->card->dev);
3138 index = queue->next_buf_to_fill;
3139 q_was_packing = queue->do_pack;
3140 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3141 if (!flush_cnt &&
3142 !atomic_read(&queue->set_pci_flags_count))
3143 flush_cnt +=
3144 qeth_flush_buffers_on_no_pci(queue);
3145 if (queue->card->options.performance_stats &&
3146 q_was_packing)
3147 queue->card->perf_stats.bufs_sent_pack +=
3148 flush_cnt;
3149 if (flush_cnt)
3150 qeth_flush_buffers(queue, 1, index, flush_cnt);
3151 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3152 }
3153 }
3154 }
3155
3156 static void
3157 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3158 unsigned int qdio_error, unsigned int siga_error,
3159 unsigned int __queue, int first_element, int count,
3160 unsigned long card_ptr)
3161 {
3162 struct qeth_card *card = (struct qeth_card *) card_ptr;
3163 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3164 struct qeth_qdio_out_buffer *buffer;
3165 int i;
3166
3167 QETH_DBF_TEXT(trace, 6, "qdouhdl");
3168 if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3169 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3170 QETH_DBF_TEXT(trace, 2, "achkcond");
3171 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3172 QETH_DBF_TEXT_(trace, 2, "%08x", status);
3173 netif_stop_queue(card->dev);
3174 qeth_schedule_recovery(card);
3175 return;
3176 }
3177 }
3178 if (card->options.performance_stats) {
3179 card->perf_stats.outbound_handler_cnt++;
3180 card->perf_stats.outbound_handler_start_time =
3181 qeth_get_micros();
3182 }
3183 for(i = first_element; i < (first_element + count); ++i){
3184 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3185 /*we only handle the KICK_IT error by doing a recovery */
3186 if (qeth_handle_send_error(card, buffer,
3187 qdio_error, siga_error)
3188 == QETH_SEND_ERROR_KICK_IT){
3189 netif_stop_queue(card->dev);
3190 qeth_schedule_recovery(card);
3191 return;
3192 }
3193 qeth_clear_output_buffer(queue, buffer);
3194 }
3195 atomic_sub(count, &queue->used_buffers);
3196 /* check if we need to do something on this outbound queue */
3197 if (card->info.type != QETH_CARD_TYPE_IQD)
3198 qeth_check_outbound_queue(queue);
3199
3200 netif_wake_queue(queue->card->dev);
3201 if (card->options.performance_stats)
3202 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3203 card->perf_stats.outbound_handler_start_time;
3204 }
3205
3206 static void
3207 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3208 {
3209
3210 param_field[0] = _ascebc['P'];
3211 param_field[1] = _ascebc['C'];
3212 param_field[2] = _ascebc['I'];
3213 param_field[3] = _ascebc['T'];
3214 *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3215 *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3216 *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3217 }
3218
3219 static void
3220 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3221 {
3222 param_field[16] = _ascebc['B'];
3223 param_field[17] = _ascebc['L'];
3224 param_field[18] = _ascebc['K'];
3225 param_field[19] = _ascebc['T'];
3226 *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3227 *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3228 *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3229 }
3230
3231 static void
3232 qeth_initialize_working_pool_list(struct qeth_card *card)
3233 {
3234 struct qeth_buffer_pool_entry *entry;
3235
3236 QETH_DBF_TEXT(trace,5,"inwrklst");
3237
3238 list_for_each_entry(entry,
3239 &card->qdio.init_pool.entry_list, init_list) {
3240 qeth_put_buffer_pool_entry(card,entry);
3241 }
3242 }
3243
3244 static void
3245 qeth_clear_working_pool_list(struct qeth_card *card)
3246 {
3247 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3248
3249 QETH_DBF_TEXT(trace,5,"clwrklst");
3250 list_for_each_entry_safe(pool_entry, tmp,
3251 &card->qdio.in_buf_pool.entry_list, list){
3252 list_del(&pool_entry->list);
3253 }
3254 }
3255
3256 static void
3257 qeth_free_buffer_pool(struct qeth_card *card)
3258 {
3259 struct qeth_buffer_pool_entry *pool_entry, *tmp;
3260 int i=0;
3261 QETH_DBF_TEXT(trace,5,"freepool");
3262 list_for_each_entry_safe(pool_entry, tmp,
3263 &card->qdio.init_pool.entry_list, init_list){
3264 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3265 free_page((unsigned long)pool_entry->elements[i]);
3266 list_del(&pool_entry->init_list);
3267 kfree(pool_entry);
3268 }
3269 }
3270
3271 static int
3272 qeth_alloc_buffer_pool(struct qeth_card *card)
3273 {
3274 struct qeth_buffer_pool_entry *pool_entry;
3275 void *ptr;
3276 int i, j;
3277
3278 QETH_DBF_TEXT(trace,5,"alocpool");
3279 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3280 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3281 if (!pool_entry){
3282 qeth_free_buffer_pool(card);
3283 return -ENOMEM;
3284 }
3285 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3286 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3287 if (!ptr) {
3288 while (j > 0)
3289 free_page((unsigned long)
3290 pool_entry->elements[--j]);
3291 kfree(pool_entry);
3292 qeth_free_buffer_pool(card);
3293 return -ENOMEM;
3294 }
3295 pool_entry->elements[j] = ptr;
3296 }
3297 list_add(&pool_entry->init_list,
3298 &card->qdio.init_pool.entry_list);
3299 }
3300 return 0;
3301 }
3302
3303 int
3304 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3305 {
3306 QETH_DBF_TEXT(trace, 2, "realcbp");
3307
3308 if ((card->state != CARD_STATE_DOWN) &&
3309 (card->state != CARD_STATE_RECOVER))
3310 return -EPERM;
3311
3312 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3313 qeth_clear_working_pool_list(card);
3314 qeth_free_buffer_pool(card);
3315 card->qdio.in_buf_pool.buf_count = bufcnt;
3316 card->qdio.init_pool.buf_count = bufcnt;
3317 return qeth_alloc_buffer_pool(card);
3318 }
3319
3320 static int
3321 qeth_alloc_qdio_buffers(struct qeth_card *card)
3322 {
3323 int i, j;
3324
3325 QETH_DBF_TEXT(setup, 2, "allcqdbf");
3326
3327 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3328 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3329 return 0;
3330
3331 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3332 GFP_KERNEL|GFP_DMA);
3333 if (!card->qdio.in_q)
3334 goto out_nomem;
3335 QETH_DBF_TEXT(setup, 2, "inq");
3336 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3337 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3338 /* give inbound qeth_qdio_buffers their qdio_buffers */
3339 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3340 card->qdio.in_q->bufs[i].buffer =
3341 &card->qdio.in_q->qdio_bufs[i];
3342 /* inbound buffer pool */
3343 if (qeth_alloc_buffer_pool(card))
3344 goto out_freeinq;
3345 /* outbound */
3346 card->qdio.out_qs =
3347 kmalloc(card->qdio.no_out_queues *
3348 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3349 if (!card->qdio.out_qs)
3350 goto out_freepool;
3351 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3352 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3353 GFP_KERNEL|GFP_DMA);
3354 if (!card->qdio.out_qs[i])
3355 goto out_freeoutq;
3356 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3357 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3358 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3359 card->qdio.out_qs[i]->queue_no = i;
3360 /* give outbound qeth_qdio_buffers their qdio_buffers */
3361 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3362 card->qdio.out_qs[i]->bufs[j].buffer =
3363 &card->qdio.out_qs[i]->qdio_bufs[j];
3364 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3365 skb_list);
3366 lockdep_set_class(
3367 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3368 &qdio_out_skb_queue_key);
3369 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3370 }
3371 }
3372 return 0;
3373
3374 out_freeoutq:
3375 while (i > 0)
3376 kfree(card->qdio.out_qs[--i]);
3377 kfree(card->qdio.out_qs);
3378 card->qdio.out_qs = NULL;
3379 out_freepool:
3380 qeth_free_buffer_pool(card);
3381 out_freeinq:
3382 kfree(card->qdio.in_q);
3383 card->qdio.in_q = NULL;
3384 out_nomem:
3385 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3386 return -ENOMEM;
3387 }
3388
3389 static void
3390 qeth_free_qdio_buffers(struct qeth_card *card)
3391 {
3392 int i, j;
3393
3394 QETH_DBF_TEXT(trace, 2, "freeqdbf");
3395 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3396 QETH_QDIO_UNINITIALIZED)
3397 return;
3398 kfree(card->qdio.in_q);
3399 card->qdio.in_q = NULL;
3400 /* inbound buffer pool */
3401 qeth_free_buffer_pool(card);
3402 /* free outbound qdio_qs */
3403 if (card->qdio.out_qs) {
3404 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3405 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3406 qeth_clear_output_buffer(card->qdio.out_qs[i],
3407 &card->qdio.out_qs[i]->bufs[j]);
3408 kfree(card->qdio.out_qs[i]);
3409 }
3410 kfree(card->qdio.out_qs);
3411 card->qdio.out_qs = NULL;
3412 }
3413 }
3414
3415 static void
3416 qeth_clear_qdio_buffers(struct qeth_card *card)
3417 {
3418 int i, j;
3419
3420 QETH_DBF_TEXT(trace, 2, "clearqdbf");
3421 /* clear outbound buffers to free skbs */
3422 for (i = 0; i < card->qdio.no_out_queues; ++i)
3423 if (card->qdio.out_qs && card->qdio.out_qs[i]) {
3424 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3425 qeth_clear_output_buffer(card->qdio.out_qs[i],
3426 &card->qdio.out_qs[i]->bufs[j]);
3427 }
3428 }
3429
3430 static void
3431 qeth_init_qdio_info(struct qeth_card *card)
3432 {
3433 QETH_DBF_TEXT(setup, 4, "intqdinf");
3434 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3435 /* inbound */
3436 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3437 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3438 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3439 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3440 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3441 }
3442
3443 static int
3444 qeth_init_qdio_queues(struct qeth_card *card)
3445 {
3446 int i, j;
3447 int rc;
3448
3449 QETH_DBF_TEXT(setup, 2, "initqdqs");
3450
3451 /* inbound queue */
3452 memset(card->qdio.in_q->qdio_bufs, 0,
3453 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3454 qeth_initialize_working_pool_list(card);
3455 /*give only as many buffers to hardware as we have buffer pool entries*/
3456 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3457 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3458 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3459 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3460 card->qdio.in_buf_pool.buf_count - 1, NULL);
3461 if (rc) {
3462 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3463 return rc;
3464 }
3465 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3466 if (rc) {
3467 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3468 return rc;
3469 }
3470 /* outbound queue */
3471 for (i = 0; i < card->qdio.no_out_queues; ++i){
3472 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3473 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3474 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3475 qeth_clear_output_buffer(card->qdio.out_qs[i],
3476 &card->qdio.out_qs[i]->bufs[j]);
3477 }
3478 card->qdio.out_qs[i]->card = card;
3479 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3480 card->qdio.out_qs[i]->do_pack = 0;
3481 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3482 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3483 atomic_set(&card->qdio.out_qs[i]->state,
3484 QETH_OUT_Q_UNLOCKED);
3485 }
3486 return 0;
3487 }
3488
3489 static int
3490 qeth_qdio_establish(struct qeth_card *card)
3491 {
3492 struct qdio_initialize init_data;
3493 char *qib_param_field;
3494 struct qdio_buffer **in_sbal_ptrs;
3495 struct qdio_buffer **out_sbal_ptrs;
3496 int i, j, k;
3497 int rc = 0;
3498
3499 QETH_DBF_TEXT(setup, 2, "qdioest");
3500
3501 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3502 GFP_KERNEL);
3503 if (!qib_param_field)
3504 return -ENOMEM;
3505
3506 qeth_create_qib_param_field(card, qib_param_field);
3507 qeth_create_qib_param_field_blkt(card, qib_param_field);
3508
3509 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3510 GFP_KERNEL);
3511 if (!in_sbal_ptrs) {
3512 kfree(qib_param_field);
3513 return -ENOMEM;
3514 }
3515 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3516 in_sbal_ptrs[i] = (struct qdio_buffer *)
3517 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3518
3519 out_sbal_ptrs =
3520 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3521 sizeof(void *), GFP_KERNEL);
3522 if (!out_sbal_ptrs) {
3523 kfree(in_sbal_ptrs);
3524 kfree(qib_param_field);
3525 return -ENOMEM;
3526 }
3527 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3528 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3529 out_sbal_ptrs[k] = (struct qdio_buffer *)
3530 virt_to_phys(card->qdio.out_qs[i]->
3531 bufs[j].buffer);
3532 }
3533
3534 memset(&init_data, 0, sizeof(struct qdio_initialize));
3535 init_data.cdev = CARD_DDEV(card);
3536 init_data.q_format = qeth_get_qdio_q_format(card);
3537 init_data.qib_param_field_format = 0;
3538 init_data.qib_param_field = qib_param_field;
3539 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD;
3540 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD;
3541 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD;
3542 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD;
3543 init_data.no_input_qs = 1;
3544 init_data.no_output_qs = card->qdio.no_out_queues;
3545 init_data.input_handler = (qdio_handler_t *)
3546 qeth_qdio_input_handler;
3547 init_data.output_handler = (qdio_handler_t *)
3548 qeth_qdio_output_handler;
3549 init_data.int_parm = (unsigned long) card;
3550 init_data.flags = QDIO_INBOUND_0COPY_SBALS |
3551 QDIO_OUTBOUND_0COPY_SBALS |
3552 QDIO_USE_OUTBOUND_PCIS;
3553 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3554 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3555
3556 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3557 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3558 if ((rc = qdio_initialize(&init_data)))
3559 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3560
3561 kfree(out_sbal_ptrs);
3562 kfree(in_sbal_ptrs);
3563 kfree(qib_param_field);
3564 return rc;
3565 }
3566
3567 static int
3568 qeth_qdio_activate(struct qeth_card *card)
3569 {
3570 QETH_DBF_TEXT(setup,3,"qdioact");
3571 return qdio_activate(CARD_DDEV(card), 0);
3572 }
3573
3574 static int
3575 qeth_clear_channel(struct qeth_channel *channel)
3576 {
3577 unsigned long flags;
3578 struct qeth_card *card;
3579 int rc;
3580
3581 QETH_DBF_TEXT(trace,3,"clearch");
3582 card = CARD_FROM_CDEV(channel->ccwdev);
3583 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3584 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3585 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3586
3587 if (rc)
3588 return rc;
3589 rc = wait_event_interruptible_timeout(card->wait_q,
3590 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3591 if (rc == -ERESTARTSYS)
3592 return rc;
3593 if (channel->state != CH_STATE_STOPPED)
3594 return -ETIME;
3595 channel->state = CH_STATE_DOWN;
3596 return 0;
3597 }
3598
3599 static int
3600 qeth_halt_channel(struct qeth_channel *channel)
3601 {
3602 unsigned long flags;
3603 struct qeth_card *card;
3604 int rc;
3605
3606 QETH_DBF_TEXT(trace,3,"haltch");
3607 card = CARD_FROM_CDEV(channel->ccwdev);
3608 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3609 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3610 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3611
3612 if (rc)
3613 return rc;
3614 rc = wait_event_interruptible_timeout(card->wait_q,
3615 channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3616 if (rc == -ERESTARTSYS)
3617 return rc;
3618 if (channel->state != CH_STATE_HALTED)
3619 return -ETIME;
3620 return 0;
3621 }
3622
3623 static int
3624 qeth_halt_channels(struct qeth_card *card)
3625 {
3626 int rc1 = 0, rc2=0, rc3 = 0;
3627
3628 QETH_DBF_TEXT(trace,3,"haltchs");
3629 rc1 = qeth_halt_channel(&card->read);
3630 rc2 = qeth_halt_channel(&card->write);
3631 rc3 = qeth_halt_channel(&card->data);
3632 if (rc1)
3633 return rc1;
3634 if (rc2)
3635 return rc2;
3636 return rc3;
3637 }
3638 static int
3639 qeth_clear_channels(struct qeth_card *card)
3640 {
3641 int rc1 = 0, rc2=0, rc3 = 0;
3642
3643 QETH_DBF_TEXT(trace,3,"clearchs");
3644 rc1 = qeth_clear_channel(&card->read);
3645 rc2 = qeth_clear_channel(&card->write);
3646 rc3 = qeth_clear_channel(&card->data);
3647 if (rc1)
3648 return rc1;
3649 if (rc2)
3650 return rc2;
3651 return rc3;
3652 }
3653
3654 static int
3655 qeth_clear_halt_card(struct qeth_card *card, int halt)
3656 {
3657 int rc = 0;
3658
3659 QETH_DBF_TEXT(trace,3,"clhacrd");
3660 QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3661
3662 if (halt)
3663 rc = qeth_halt_channels(card);
3664 if (rc)
3665 return rc;
3666 return qeth_clear_channels(card);
3667 }
3668
3669 static int
3670 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3671 {
3672 int rc = 0;
3673
3674 QETH_DBF_TEXT(trace,3,"qdioclr");
3675 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3676 QETH_QDIO_CLEANING)) {
3677 case QETH_QDIO_ESTABLISHED:
3678 if ((rc = qdio_cleanup(CARD_DDEV(card),
3679 (card->info.type == QETH_CARD_TYPE_IQD) ?
3680 QDIO_FLAG_CLEANUP_USING_HALT :
3681 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3682 QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3683 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3684 break;
3685 case QETH_QDIO_CLEANING:
3686 return rc;
3687 default:
3688 break;
3689 }
3690 if ((rc = qeth_clear_halt_card(card, use_halt)))
3691 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3692 card->state = CARD_STATE_DOWN;
3693 return rc;
3694 }
3695
3696 static int
3697 qeth_dm_act(struct qeth_card *card)
3698 {
3699 int rc;
3700 struct qeth_cmd_buffer *iob;
3701
3702 QETH_DBF_TEXT(setup,2,"dmact");
3703
3704 iob = qeth_wait_for_buffer(&card->write);
3705 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3706
3707 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3708 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3709 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3710 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3711 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3712 return rc;
3713 }
3714
3715 static int
3716 qeth_mpc_initialize(struct qeth_card *card)
3717 {
3718 int rc;
3719
3720 QETH_DBF_TEXT(setup,2,"mpcinit");
3721
3722 if ((rc = qeth_issue_next_read(card))){
3723 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3724 return rc;
3725 }
3726 if ((rc = qeth_cm_enable(card))){
3727 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3728 goto out_qdio;
3729 }
3730 if ((rc = qeth_cm_setup(card))){
3731 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3732 goto out_qdio;
3733 }
3734 if ((rc = qeth_ulp_enable(card))){
3735 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3736 goto out_qdio;
3737 }
3738 if ((rc = qeth_ulp_setup(card))){
3739 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3740 goto out_qdio;
3741 }
3742 if ((rc = qeth_alloc_qdio_buffers(card))){
3743 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3744 goto out_qdio;
3745 }
3746 if ((rc = qeth_qdio_establish(card))){
3747 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3748 qeth_free_qdio_buffers(card);
3749 goto out_qdio;
3750 }
3751 if ((rc = qeth_qdio_activate(card))){
3752 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3753 goto out_qdio;
3754 }
3755 if ((rc = qeth_dm_act(card))){
3756 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3757 goto out_qdio;
3758 }
3759
3760 return 0;
3761 out_qdio:
3762 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3763 return rc;
3764 }
3765
3766 static struct net_device *
3767 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3768 {
3769 struct net_device *dev = NULL;
3770
3771 switch (type) {
3772 case QETH_CARD_TYPE_OSAE:
3773 switch (linktype) {
3774 case QETH_LINK_TYPE_LANE_TR:
3775 case QETH_LINK_TYPE_HSTR:
3776 #ifdef CONFIG_TR
3777 dev = alloc_trdev(0);
3778 #endif /* CONFIG_TR */
3779 break;
3780 default:
3781 dev = alloc_etherdev(0);
3782 }
3783 break;
3784 case QETH_CARD_TYPE_IQD:
3785 dev = alloc_netdev(0, "hsi%d", ether_setup);
3786 break;
3787 case QETH_CARD_TYPE_OSN:
3788 dev = alloc_netdev(0, "osn%d", ether_setup);
3789 break;
3790 default:
3791 dev = alloc_etherdev(0);
3792 }
3793 return dev;
3794 }
3795
3796 /*hard_header fake function; used in case fake_ll is set */
3797 static int
3798 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3799 unsigned short type, const void *daddr, const void *saddr,
3800 unsigned len)
3801 {
3802 if(dev->type == ARPHRD_IEEE802_TR){
3803 struct trh_hdr *hdr;
3804 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3805 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3806 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3807 return QETH_FAKE_LL_LEN_TR;
3808
3809 } else {
3810 struct ethhdr *hdr;
3811 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3812 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3813 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3814 if (type != ETH_P_802_3)
3815 hdr->h_proto = htons(type);
3816 else
3817 hdr->h_proto = htons(len);
3818 return QETH_FAKE_LL_LEN_ETH;
3819
3820 }
3821 }
3822
3823 static const struct header_ops qeth_fake_ops = {
3824 .create = qeth_fake_header,
3825 .parse = qeth_hard_header_parse,
3826 };
3827
3828 static int
3829 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3830
3831 static int
3832 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3833 {
3834 int rc;
3835 struct qeth_card *card;
3836
3837 QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3838 card = (struct qeth_card *)dev->priv;
3839 if (skb==NULL) {
3840 card->stats.tx_dropped++;
3841 card->stats.tx_errors++;
3842 /* return OK; otherwise ksoftirqd goes to 100% */
3843 return NETDEV_TX_OK;
3844 }
3845 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3846 card->stats.tx_dropped++;
3847 card->stats.tx_errors++;
3848 card->stats.tx_carrier_errors++;
3849 dev_kfree_skb_any(skb);
3850 /* return OK; otherwise ksoftirqd goes to 100% */
3851 return NETDEV_TX_OK;
3852 }
3853 if (card->options.performance_stats) {
3854 card->perf_stats.outbound_cnt++;
3855 card->perf_stats.outbound_start_time = qeth_get_micros();
3856 }
3857 netif_stop_queue(dev);
3858 if ((rc = qeth_send_packet(card, skb))) {
3859 if (rc == -EBUSY) {
3860 return NETDEV_TX_BUSY;
3861 } else {
3862 card->stats.tx_errors++;
3863 card->stats.tx_dropped++;
3864 dev_kfree_skb_any(skb);
3865 /*set to OK; otherwise ksoftirqd goes to 100% */
3866 rc = NETDEV_TX_OK;
3867 }
3868 }
3869 netif_wake_queue(dev);
3870 if (card->options.performance_stats)
3871 card->perf_stats.outbound_time += qeth_get_micros() -
3872 card->perf_stats.outbound_start_time;
3873 return rc;
3874 }
3875
3876 static int
3877 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3878 {
3879 int rc = 0;
3880 #ifdef CONFIG_QETH_VLAN
3881 struct vlan_group *vg;
3882 int i;
3883
3884 if (!(vg = card->vlangrp))
3885 return rc;
3886
3887 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3888 if (vlan_group_get_device(vg, i) == dev){
3889 rc = QETH_VLAN_CARD;
3890 break;
3891 }
3892 }
3893 if (rc && !(vlan_dev_info(dev)->real_dev->priv == (void *)card))
3894 return 0;
3895
3896 #endif
3897 return rc;
3898 }
3899
3900 static int
3901 qeth_verify_dev(struct net_device *dev)
3902 {
3903 struct qeth_card *card;
3904 unsigned long flags;
3905 int rc = 0;
3906
3907 read_lock_irqsave(&qeth_card_list.rwlock, flags);
3908 list_for_each_entry(card, &qeth_card_list.list, list){
3909 if (card->dev == dev){
3910 rc = QETH_REAL_CARD;
3911 break;
3912 }
3913 rc = qeth_verify_vlan_dev(dev, card);
3914 if (rc)
3915 break;
3916 }
3917 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3918
3919 return rc;
3920 }
3921
3922 static struct qeth_card *
3923 qeth_get_card_from_dev(struct net_device *dev)
3924 {
3925 struct qeth_card *card = NULL;
3926 int rc;
3927
3928 rc = qeth_verify_dev(dev);
3929 if (rc == QETH_REAL_CARD)
3930 card = (struct qeth_card *)dev->priv;
3931 else if (rc == QETH_VLAN_CARD)
3932 card = (struct qeth_card *)
3933 vlan_dev_info(dev)->real_dev->priv;
3934
3935 QETH_DBF_TEXT_(trace, 4, "%d", rc);
3936 return card ;
3937 }
3938
3939 static void
3940 qeth_tx_timeout(struct net_device *dev)
3941 {
3942 struct qeth_card *card;
3943
3944 card = (struct qeth_card *) dev->priv;
3945 card->stats.tx_errors++;
3946 qeth_schedule_recovery(card);
3947 }
3948
3949 static int
3950 qeth_open(struct net_device *dev)
3951 {
3952 struct qeth_card *card;
3953
3954 QETH_DBF_TEXT(trace, 4, "qethopen");
3955
3956 card = (struct qeth_card *) dev->priv;
3957
3958 if (card->state != CARD_STATE_SOFTSETUP)
3959 return -ENODEV;
3960
3961 if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3962 (card->options.layer2) &&
3963 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3964 QETH_DBF_TEXT(trace,4,"nomacadr");
3965 return -EPERM;
3966 }
3967 card->data.state = CH_STATE_UP;
3968 card->state = CARD_STATE_UP;
3969 card->dev->flags |= IFF_UP;
3970 netif_start_queue(dev);
3971
3972 if (!card->lan_online && netif_carrier_ok(dev))
3973 netif_carrier_off(dev);
3974 return 0;
3975 }
3976
3977 static int
3978 qeth_stop(struct net_device *dev)
3979 {
3980 struct qeth_card *card;
3981
3982 QETH_DBF_TEXT(trace, 4, "qethstop");
3983
3984 card = (struct qeth_card *) dev->priv;
3985
3986 netif_tx_disable(dev);
3987 card->dev->flags &= ~IFF_UP;
3988 if (card->state == CARD_STATE_UP)
3989 card->state = CARD_STATE_SOFTSETUP;
3990 return 0;
3991 }
3992
3993 static int
3994 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3995 {
3996 int cast_type = RTN_UNSPEC;
3997
3998 if (card->info.type == QETH_CARD_TYPE_OSN)
3999 return cast_type;
4000
4001 if (skb->dst && skb->dst->neighbour){
4002 cast_type = skb->dst->neighbour->type;
4003 if ((cast_type == RTN_BROADCAST) ||
4004 (cast_type == RTN_MULTICAST) ||
4005 (cast_type == RTN_ANYCAST))
4006 return cast_type;
4007 else
4008 return RTN_UNSPEC;
4009 }
4010 /* try something else */
4011 if (skb->protocol == ETH_P_IPV6)
4012 return (skb_network_header(skb)[24] == 0xff) ?
4013 RTN_MULTICAST : 0;
4014 else if (skb->protocol == ETH_P_IP)
4015 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
4016 RTN_MULTICAST : 0;
4017 /* ... */
4018 if (!memcmp(skb->data, skb->dev->broadcast, 6))
4019 return RTN_BROADCAST;
4020 else {
4021 u16 hdr_mac;
4022
4023 hdr_mac = *((u16 *)skb->data);
4024 /* tr multicast? */
4025 switch (card->info.link_type) {
4026 case QETH_LINK_TYPE_HSTR:
4027 case QETH_LINK_TYPE_LANE_TR:
4028 if ((hdr_mac == QETH_TR_MAC_NC) ||
4029 (hdr_mac == QETH_TR_MAC_C))
4030 return RTN_MULTICAST;
4031 break;
4032 /* eth or so multicast? */
4033 default:
4034 if ((hdr_mac == QETH_ETH_MAC_V4) ||
4035 (hdr_mac == QETH_ETH_MAC_V6))
4036 return RTN_MULTICAST;
4037 }
4038 }
4039 return cast_type;
4040 }
4041
4042 static int
4043 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
4044 int ipv, int cast_type)
4045 {
4046 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
4047 return card->qdio.default_out_queue;
4048 switch (card->qdio.no_out_queues) {
4049 case 4:
4050 if (cast_type && card->info.is_multicast_different)
4051 return card->info.is_multicast_different &
4052 (card->qdio.no_out_queues - 1);
4053 if (card->qdio.do_prio_queueing && (ipv == 4)) {
4054 const u8 tos = ip_hdr(skb)->tos;
4055
4056 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
4057 if (tos & IP_TOS_NOTIMPORTANT)
4058 return 3;
4059 if (tos & IP_TOS_HIGHRELIABILITY)
4060 return 2;
4061 if (tos & IP_TOS_HIGHTHROUGHPUT)
4062 return 1;
4063 if (tos & IP_TOS_LOWDELAY)
4064 return 0;
4065 }
4066 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
4067 return 3 - (tos >> 6);
4068 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
4069 /* TODO: IPv6!!! */
4070 }
4071 return card->qdio.default_out_queue;
4072 case 1: /* fallthrough for single-out-queue 1920-device */
4073 default:
4074 return card->qdio.default_out_queue;
4075 }
4076 }
4077
4078 static inline int
4079 qeth_get_ip_version(struct sk_buff *skb)
4080 {
4081 switch (skb->protocol) {
4082 case ETH_P_IPV6:
4083 return 6;
4084 case ETH_P_IP:
4085 return 4;
4086 default:
4087 return 0;
4088 }
4089 }
4090
4091 static struct qeth_hdr *
4092 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
4093 {
4094 #ifdef CONFIG_QETH_VLAN
4095 u16 *tag;
4096 if (card->vlangrp && vlan_tx_tag_present(skb) &&
4097 ((ipv == 6) || card->options.layer2) ) {
4098 /*
4099 * Move the mac addresses (6 bytes src, 6 bytes dest)
4100 * to the beginning of the new header. We are using three
4101 * memcpys instead of one memmove to save cycles.
4102 */
4103 skb_push(skb, VLAN_HLEN);
4104 skb_copy_to_linear_data(skb, skb->data + 4, 4);
4105 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
4106 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
4107 tag = (u16 *)(skb->data + 12);
4108 /*
4109 * first two bytes = ETH_P_8021Q (0x8100)
4110 * second two bytes = VLANID
4111 */
4112 *tag = __constant_htons(ETH_P_8021Q);
4113 *(tag + 1) = htons(vlan_tx_tag_get(skb));
4114 }
4115 #endif
4116 return ((struct qeth_hdr *)
4117 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
4118 }
4119
4120 static void
4121 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
4122 {
4123 if (orig_skb != new_skb)
4124 dev_kfree_skb_any(new_skb);
4125 }
4126
4127 static struct sk_buff *
4128 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
4129 struct qeth_hdr **hdr, int ipv)
4130 {
4131 struct sk_buff *new_skb, *new_skb2;
4132
4133 QETH_DBF_TEXT(trace, 6, "prepskb");
4134 new_skb = skb;
4135 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4136 if (!new_skb)
4137 return NULL;
4138 new_skb2 = qeth_realloc_headroom(card, new_skb,
4139 sizeof(struct qeth_hdr));
4140 if (!new_skb2) {
4141 __qeth_free_new_skb(skb, new_skb);
4142 return NULL;
4143 }
4144 if (new_skb != skb)
4145 __qeth_free_new_skb(new_skb2, new_skb);
4146 new_skb = new_skb2;
4147 *hdr = __qeth_prepare_skb(card, new_skb, ipv);
4148 if (*hdr == NULL) {
4149 __qeth_free_new_skb(skb, new_skb);
4150 return NULL;
4151 }
4152 return new_skb;
4153 }
4154
4155 static inline u8
4156 qeth_get_qeth_hdr_flags4(int cast_type)
4157 {
4158 if (cast_type == RTN_MULTICAST)
4159 return QETH_CAST_MULTICAST;
4160 if (cast_type == RTN_BROADCAST)
4161 return QETH_CAST_BROADCAST;
4162 return QETH_CAST_UNICAST;
4163 }
4164
4165 static inline u8
4166 qeth_get_qeth_hdr_flags6(int cast_type)
4167 {
4168 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
4169 if (cast_type == RTN_MULTICAST)
4170 return ct | QETH_CAST_MULTICAST;
4171 if (cast_type == RTN_ANYCAST)
4172 return ct | QETH_CAST_ANYCAST;
4173 if (cast_type == RTN_BROADCAST)
4174 return ct | QETH_CAST_BROADCAST;
4175 return ct | QETH_CAST_UNICAST;
4176 }
4177
4178 static void
4179 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4180 struct sk_buff *skb)
4181 {
4182 __u16 hdr_mac;
4183
4184 if (!memcmp(skb->data+QETH_HEADER_SIZE,
4185 skb->dev->broadcast,6)) { /* broadcast? */
4186 *(__u32 *)hdr->hdr.l2.flags |=
4187 QETH_LAYER2_FLAG_BROADCAST << 8;
4188 return;
4189 }
4190 hdr_mac=*((__u16*)skb->data);
4191 /* tr multicast? */
4192 switch (card->info.link_type) {
4193 case QETH_LINK_TYPE_HSTR:
4194 case QETH_LINK_TYPE_LANE_TR:
4195 if ((hdr_mac == QETH_TR_MAC_NC) ||
4196 (hdr_mac == QETH_TR_MAC_C) )
4197 *(__u32 *)hdr->hdr.l2.flags |=
4198 QETH_LAYER2_FLAG_MULTICAST << 8;
4199 else
4200 *(__u32 *)hdr->hdr.l2.flags |=
4201 QETH_LAYER2_FLAG_UNICAST << 8;
4202 break;
4203 /* eth or so multicast? */
4204 default:
4205 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4206 (hdr_mac==QETH_ETH_MAC_V6) )
4207 *(__u32 *)hdr->hdr.l2.flags |=
4208 QETH_LAYER2_FLAG_MULTICAST << 8;
4209 else
4210 *(__u32 *)hdr->hdr.l2.flags |=
4211 QETH_LAYER2_FLAG_UNICAST << 8;
4212 }
4213 }
4214
4215 static void
4216 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4217 struct sk_buff *skb, int cast_type)
4218 {
4219 memset(hdr, 0, sizeof(struct qeth_hdr));
4220 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4221
4222 /* set byte 0 to "0x02" and byte 3 to casting flags */
4223 if (cast_type==RTN_MULTICAST)
4224 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4225 else if (cast_type==RTN_BROADCAST)
4226 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4227 else
4228 qeth_layer2_get_packet_type(card, hdr, skb);
4229
4230 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4231 #ifdef CONFIG_QETH_VLAN
4232 /* VSWITCH relies on the VLAN
4233 * information to be present in
4234 * the QDIO header */
4235 if ((card->vlangrp != NULL) &&
4236 vlan_tx_tag_present(skb)) {
4237 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4238 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4239 }
4240 #endif
4241 }
4242
4243 void
4244 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4245 struct sk_buff *skb, int ipv, int cast_type)
4246 {
4247 QETH_DBF_TEXT(trace, 6, "fillhdr");
4248
4249 memset(hdr, 0, sizeof(struct qeth_hdr));
4250 if (card->options.layer2) {
4251 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4252 return;
4253 }
4254 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4255 hdr->hdr.l3.ext_flags = 0;
4256 #ifdef CONFIG_QETH_VLAN
4257 /*
4258 * before we're going to overwrite this location with next hop ip.
4259 * v6 uses passthrough, v4 sets the tag in the QDIO header.
4260 */
4261 if (card->vlangrp && vlan_tx_tag_present(skb)) {
4262 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4263 QETH_HDR_EXT_VLAN_FRAME :
4264 QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4265 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4266 }
4267 #endif /* CONFIG_QETH_VLAN */
4268 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4269 if (ipv == 4) { /* IPv4 */
4270 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4271 memset(hdr->hdr.l3.dest_addr, 0, 12);
4272 if ((skb->dst) && (skb->dst->neighbour)) {
4273 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4274 *((u32 *) skb->dst->neighbour->primary_key);
4275 } else {
4276 /* fill in destination address used in ip header */
4277 *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4278 ip_hdr(skb)->daddr;
4279 }
4280 } else if (ipv == 6) { /* IPv6 or passthru */
4281 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4282 if ((skb->dst) && (skb->dst->neighbour)) {
4283 memcpy(hdr->hdr.l3.dest_addr,
4284 skb->dst->neighbour->primary_key, 16);
4285 } else {
4286 /* fill in destination address used in ip header */
4287 memcpy(hdr->hdr.l3.dest_addr,
4288 &ipv6_hdr(skb)->daddr, 16);
4289 }
4290 } else { /* passthrough */
4291 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4292 !memcmp(skb->data + sizeof(struct qeth_hdr) +
4293 sizeof(__u16), skb->dev->broadcast, 6)) {
4294 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4295 QETH_HDR_PASSTHRU;
4296 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4297 skb->dev->broadcast, 6)) { /* broadcast? */
4298 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4299 QETH_HDR_PASSTHRU;
4300 } else {
4301 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4302 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4303 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4304 }
4305 }
4306 }
4307
4308 static void
4309 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4310 int is_tso, int *next_element_to_fill)
4311 {
4312 int length = skb->len;
4313 int length_here;
4314 int element;
4315 char *data;
4316 int first_lap ;
4317
4318 element = *next_element_to_fill;
4319 data = skb->data;
4320 first_lap = (is_tso == 0 ? 1 : 0);
4321
4322 while (length > 0) {
4323 /* length_here is the remaining amount of data in this page */
4324 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4325 if (length < length_here)
4326 length_here = length;
4327
4328 buffer->element[element].addr = data;
4329 buffer->element[element].length = length_here;
4330 length -= length_here;
4331 if (!length) {
4332 if (first_lap)
4333 buffer->element[element].flags = 0;
4334 else
4335 buffer->element[element].flags =
4336 SBAL_FLAGS_LAST_FRAG;
4337 } else {
4338 if (first_lap)
4339 buffer->element[element].flags =
4340 SBAL_FLAGS_FIRST_FRAG;
4341 else
4342 buffer->element[element].flags =
4343 SBAL_FLAGS_MIDDLE_FRAG;
4344 }
4345 data += length_here;
4346 element++;
4347 first_lap = 0;
4348 }
4349 *next_element_to_fill = element;
4350 }
4351
4352 static int
4353 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4354 struct qeth_qdio_out_buffer *buf,
4355 struct sk_buff *skb)
4356 {
4357 struct qdio_buffer *buffer;
4358 struct qeth_hdr_tso *hdr;
4359 int flush_cnt = 0, hdr_len, large_send = 0;
4360
4361 QETH_DBF_TEXT(trace, 6, "qdfillbf");
4362
4363 buffer = buf->buffer;
4364 atomic_inc(&skb->users);
4365 skb_queue_tail(&buf->skb_list, skb);
4366
4367 hdr = (struct qeth_hdr_tso *) skb->data;
4368 /*check first on TSO ....*/
4369 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4370 int element = buf->next_element_to_fill;
4371
4372 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4373 /*fill first buffer entry only with header information */
4374 buffer->element[element].addr = skb->data;
4375 buffer->element[element].length = hdr_len;
4376 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4377 buf->next_element_to_fill++;
4378 skb->data += hdr_len;
4379 skb->len -= hdr_len;
4380 large_send = 1;
4381 }
4382 if (skb_shinfo(skb)->nr_frags == 0)
4383 __qeth_fill_buffer(skb, buffer, large_send,
4384 (int *)&buf->next_element_to_fill);
4385 else
4386 __qeth_fill_buffer_frag(skb, buffer, large_send,
4387 (int *)&buf->next_element_to_fill);
4388
4389 if (!queue->do_pack) {
4390 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4391 /* set state to PRIMED -> will be flushed */
4392 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4393 flush_cnt = 1;
4394 } else {
4395 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4396 if (queue->card->options.performance_stats)
4397 queue->card->perf_stats.skbs_sent_pack++;
4398 if (buf->next_element_to_fill >=
4399 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4400 /*
4401 * packed buffer if full -> set state PRIMED
4402 * -> will be flushed
4403 */
4404 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4405 flush_cnt = 1;
4406 }
4407 }
4408 return flush_cnt;
4409 }
4410
4411 static int
4412 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4413 struct sk_buff *skb, struct qeth_hdr *hdr,
4414 int elements_needed,
4415 struct qeth_eddp_context *ctx)
4416 {
4417 struct qeth_qdio_out_buffer *buffer;
4418 int buffers_needed = 0;
4419 int flush_cnt = 0;
4420 int index;
4421
4422 QETH_DBF_TEXT(trace, 6, "dosndpfa");
4423
4424 /* spin until we get the queue ... */
4425 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4426 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4427 /* ... now we've got the queue */
4428 index = queue->next_buf_to_fill;
4429 buffer = &queue->bufs[queue->next_buf_to_fill];
4430 /*
4431 * check if buffer is empty to make sure that we do not 'overtake'
4432 * ourselves and try to fill a buffer that is already primed
4433 */
4434 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4435 goto out;
4436 if (ctx == NULL)
4437 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4438 QDIO_MAX_BUFFERS_PER_Q;
4439 else {
4440 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4441 if (buffers_needed < 0)
4442 goto out;
4443 queue->next_buf_to_fill =
4444 (queue->next_buf_to_fill + buffers_needed) %
4445 QDIO_MAX_BUFFERS_PER_Q;
4446 }
4447 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4448 if (ctx == NULL) {
4449 qeth_fill_buffer(queue, buffer, skb);
4450 qeth_flush_buffers(queue, 0, index, 1);
4451 } else {
4452 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4453 WARN_ON(buffers_needed != flush_cnt);
4454 qeth_flush_buffers(queue, 0, index, flush_cnt);
4455 }
4456 return 0;
4457 out:
4458 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4459 return -EBUSY;
4460 }
4461
4462 static int
4463 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4464 struct sk_buff *skb, struct qeth_hdr *hdr,
4465 int elements_needed, struct qeth_eddp_context *ctx)
4466 {
4467 struct qeth_qdio_out_buffer *buffer;
4468 int start_index;
4469 int flush_count = 0;
4470 int do_pack = 0;
4471 int tmp;
4472 int rc = 0;
4473
4474 QETH_DBF_TEXT(trace, 6, "dosndpkt");
4475
4476 /* spin until we get the queue ... */
4477 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4478 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4479 start_index = queue->next_buf_to_fill;
4480 buffer = &queue->bufs[queue->next_buf_to_fill];
4481 /*
4482 * check if buffer is empty to make sure that we do not 'overtake'
4483 * ourselves and try to fill a buffer that is already primed
4484 */
4485 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4486 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4487 return -EBUSY;
4488 }
4489 /* check if we need to switch packing state of this queue */
4490 qeth_switch_to_packing_if_needed(queue);
4491 if (queue->do_pack){
4492 do_pack = 1;
4493 if (ctx == NULL) {
4494 /* does packet fit in current buffer? */
4495 if((QETH_MAX_BUFFER_ELEMENTS(card) -
4496 buffer->next_element_to_fill) < elements_needed){
4497 /* ... no -> set state PRIMED */
4498 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4499 flush_count++;
4500 queue->next_buf_to_fill =
4501 (queue->next_buf_to_fill + 1) %
4502 QDIO_MAX_BUFFERS_PER_Q;
4503 buffer = &queue->bufs[queue->next_buf_to_fill];
4504 /* we did a step forward, so check buffer state
4505 * again */
4506 if (atomic_read(&buffer->state) !=
4507 QETH_QDIO_BUF_EMPTY){
4508 qeth_flush_buffers(queue, 0, start_index, flush_count);
4509 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4510 return -EBUSY;
4511 }
4512 }
4513 } else {
4514 /* check if we have enough elements (including following
4515 * free buffers) to handle eddp context */
4516 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4517 if (net_ratelimit())
4518 PRINT_WARN("eddp tx_dropped 1\n");
4519 rc = -EBUSY;
4520 goto out;
4521 }
4522 }
4523 }
4524 if (ctx == NULL)
4525 tmp = qeth_fill_buffer(queue, buffer, skb);
4526 else {
4527 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4528 if (tmp < 0) {
4529 printk("eddp tx_dropped 2\n");
4530 rc = - EBUSY;
4531 goto out;
4532 }
4533 }
4534 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4535 QDIO_MAX_BUFFERS_PER_Q;
4536 flush_count += tmp;
4537 out:
4538 if (flush_count)
4539 qeth_flush_buffers(queue, 0, start_index, flush_count);
4540 else if (!atomic_read(&queue->set_pci_flags_count))
4541 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4542 /*
4543 * queue->state will go from LOCKED -> UNLOCKED or from
4544 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4545 * (switch packing state or flush buffer to get another pci flag out).
4546 * In that case we will enter this loop
4547 */
4548 while (atomic_dec_return(&queue->state)){
4549 flush_count = 0;
4550 start_index = queue->next_buf_to_fill;
4551 /* check if we can go back to non-packing state */
4552 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4553 /*
4554 * check if we need to flush a packing buffer to get a pci
4555 * flag out on the queue
4556 */
4557 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4558 flush_count += qeth_flush_buffers_on_no_pci(queue);
4559 if (flush_count)
4560 qeth_flush_buffers(queue, 0, start_index, flush_count);
4561 }
4562 /* at this point the queue is UNLOCKED again */
4563 if (queue->card->options.performance_stats && do_pack)
4564 queue->card->perf_stats.bufs_sent_pack += flush_count;
4565
4566 return rc;
4567 }
4568
4569 static int
4570 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4571 struct sk_buff *skb, int elems)
4572 {
4573 int elements_needed = 0;
4574
4575 if (skb_shinfo(skb)->nr_frags > 0)
4576 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4577 if (elements_needed == 0)
4578 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4579 + skb->len) >> PAGE_SHIFT);
4580 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4581 PRINT_ERR("Invalid size of IP packet "
4582 "(Number=%d / Length=%d). Discarded.\n",
4583 (elements_needed+elems), skb->len);
4584 return 0;
4585 }
4586 return elements_needed;
4587 }
4588
4589 static void qeth_tx_csum(struct sk_buff *skb)
4590 {
4591 int tlen;
4592
4593 if (skb->protocol == htons(ETH_P_IP)) {
4594 tlen = ntohs(ip_hdr(skb)->tot_len) - (ip_hdr(skb)->ihl << 2);
4595 switch (ip_hdr(skb)->protocol) {
4596 case IPPROTO_TCP:
4597 tcp_hdr(skb)->check = 0;
4598 tcp_hdr(skb)->check = csum_tcpudp_magic(
4599 ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
4600 tlen, ip_hdr(skb)->protocol,
4601 skb_checksum(skb, skb_transport_offset(skb),
4602 tlen, 0));
4603 break;
4604 case IPPROTO_UDP:
4605 udp_hdr(skb)->check = 0;
4606 udp_hdr(skb)->check = csum_tcpudp_magic(
4607 ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
4608 tlen, ip_hdr(skb)->protocol,
4609 skb_checksum(skb, skb_transport_offset(skb),
4610 tlen, 0));
4611 break;
4612 }
4613 } else if (skb->protocol == htons(ETH_P_IPV6)) {
4614 switch (ipv6_hdr(skb)->nexthdr) {
4615 case IPPROTO_TCP:
4616 tcp_hdr(skb)->check = 0;
4617 tcp_hdr(skb)->check = csum_ipv6_magic(
4618 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
4619 ipv6_hdr(skb)->payload_len,
4620 ipv6_hdr(skb)->nexthdr,
4621 skb_checksum(skb, skb_transport_offset(skb),
4622 ipv6_hdr(skb)->payload_len, 0));
4623 break;
4624 case IPPROTO_UDP:
4625 udp_hdr(skb)->check = 0;
4626 udp_hdr(skb)->check = csum_ipv6_magic(
4627 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
4628 ipv6_hdr(skb)->payload_len,
4629 ipv6_hdr(skb)->nexthdr,
4630 skb_checksum(skb, skb_transport_offset(skb),
4631 ipv6_hdr(skb)->payload_len, 0));
4632 break;
4633 }
4634 }
4635 }
4636
4637 static int
4638 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4639 {
4640 int ipv = 0;
4641 int cast_type;
4642 struct qeth_qdio_out_q *queue;
4643 struct qeth_hdr *hdr = NULL;
4644 int elements_needed = 0;
4645 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4646 struct qeth_eddp_context *ctx = NULL;
4647 int tx_bytes = skb->len;
4648 unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4649 unsigned short tso_size = skb_shinfo(skb)->gso_size;
4650 struct sk_buff *new_skb, *new_skb2;
4651 int rc;
4652
4653 QETH_DBF_TEXT(trace, 6, "sendpkt");
4654
4655 new_skb = skb;
4656 if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4657 (skb->protocol == htons(ETH_P_IPV6)))
4658 return -EPERM;
4659 cast_type = qeth_get_cast_type(card, skb);
4660 if ((cast_type == RTN_BROADCAST) &&
4661 (card->info.broadcast_capable == 0))
4662 return -EPERM;
4663 queue = card->qdio.out_qs
4664 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4665 if (!card->options.layer2) {
4666 ipv = qeth_get_ip_version(skb);
4667 if ((card->dev->header_ops == &qeth_fake_ops) && ipv) {
4668 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4669 if (!new_skb)
4670 return -ENOMEM;
4671 if(card->dev->type == ARPHRD_IEEE802_TR){
4672 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4673 } else {
4674 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4675 }
4676 }
4677 }
4678 if (skb_is_gso(skb))
4679 large_send = card->options.large_send;
4680 /* check on OSN device*/
4681 if (card->info.type == QETH_CARD_TYPE_OSN)
4682 hdr = (struct qeth_hdr *)new_skb->data;
4683 /*are we able to do TSO ? */
4684 if ((large_send == QETH_LARGE_SEND_TSO) &&
4685 (cast_type == RTN_UNSPEC)) {
4686 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4687 if (rc) {
4688 __qeth_free_new_skb(skb, new_skb);
4689 return rc;
4690 }
4691 elements_needed++;
4692 } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4693 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4694 if (!new_skb2) {
4695 __qeth_free_new_skb(skb, new_skb);
4696 return -EINVAL;
4697 }
4698 if (new_skb != skb)
4699 __qeth_free_new_skb(new_skb2, new_skb);
4700 new_skb = new_skb2;
4701 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4702 }
4703 if (large_send == QETH_LARGE_SEND_EDDP) {
4704 ctx = qeth_eddp_create_context(card, new_skb, hdr,
4705 skb->sk->sk_protocol);
4706 if (ctx == NULL) {
4707 __qeth_free_new_skb(skb, new_skb);
4708 PRINT_WARN("could not create eddp context\n");
4709 return -EINVAL;
4710 }
4711 } else {
4712 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4713 elements_needed);
4714 if (!elems) {
4715 __qeth_free_new_skb(skb, new_skb);
4716 return -EINVAL;
4717 }
4718 elements_needed += elems;
4719 }
4720
4721 if ((large_send == QETH_LARGE_SEND_NO) &&
4722 (skb->ip_summed == CHECKSUM_PARTIAL))
4723 qeth_tx_csum(new_skb);
4724
4725 if (card->info.type != QETH_CARD_TYPE_IQD)
4726 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4727 elements_needed, ctx);
4728 else {
4729 if ((!card->options.layer2) &&
4730 (ipv == 0)) {
4731 __qeth_free_new_skb(skb, new_skb);
4732 return -EPERM;
4733 }
4734 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4735 elements_needed, ctx);
4736 }
4737 if (!rc) {
4738 card->stats.tx_packets++;
4739 card->stats.tx_bytes += tx_bytes;
4740 if (new_skb != skb)
4741 dev_kfree_skb_any(skb);
4742 if (card->options.performance_stats) {
4743 if (tso_size &&
4744 !(large_send == QETH_LARGE_SEND_NO)) {
4745 card->perf_stats.large_send_bytes += tx_bytes;
4746 card->perf_stats.large_send_cnt++;
4747 }
4748 if (nr_frags > 0) {
4749 card->perf_stats.sg_skbs_sent++;
4750 /* nr_frags + skb->data */
4751 card->perf_stats.sg_frags_sent +=
4752 nr_frags + 1;
4753 }
4754 }
4755 } else {
4756 card->stats.tx_dropped++;
4757 __qeth_free_new_skb(skb, new_skb);
4758 }
4759 if (ctx != NULL) {
4760 /* drop creator's reference */
4761 qeth_eddp_put_context(ctx);
4762 /* free skb; it's not referenced by a buffer */
4763 if (!rc)
4764 dev_kfree_skb_any(new_skb);
4765 }
4766 return rc;
4767 }
4768
4769 static int
4770 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4771 {
4772 struct qeth_card *card = (struct qeth_card *) dev->priv;
4773 int rc = 0;
4774
4775 switch(regnum){
4776 case MII_BMCR: /* Basic mode control register */
4777 rc = BMCR_FULLDPLX;
4778 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4779 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4780 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4781 rc |= BMCR_SPEED100;
4782 break;
4783 case MII_BMSR: /* Basic mode status register */
4784 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4785 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4786 BMSR_100BASE4;
4787 break;
4788 case MII_PHYSID1: /* PHYS ID 1 */
4789 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4790 dev->dev_addr[2];
4791 rc = (rc >> 5) & 0xFFFF;
4792 break;
4793 case MII_PHYSID2: /* PHYS ID 2 */
4794 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4795 break;
4796 case MII_ADVERTISE: /* Advertisement control reg */
4797 rc = ADVERTISE_ALL;
4798 break;
4799 case MII_LPA: /* Link partner ability reg */
4800 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4801 LPA_100BASE4 | LPA_LPACK;
4802 break;
4803 case MII_EXPANSION: /* Expansion register */
4804 break;
4805 case MII_DCOUNTER: /* disconnect counter */
4806 break;
4807 case MII_FCSCOUNTER: /* false carrier counter */
4808 break;
4809 case MII_NWAYTEST: /* N-way auto-neg test register */
4810 break;
4811 case MII_RERRCOUNTER: /* rx error counter */
4812 rc = card->stats.rx_errors;
4813 break;
4814 case MII_SREVISION: /* silicon revision */
4815 break;
4816 case MII_RESV1: /* reserved 1 */
4817 break;
4818 case MII_LBRERROR: /* loopback, rx, bypass error */
4819 break;
4820 case MII_PHYADDR: /* physical address */
4821 break;
4822 case MII_RESV2: /* reserved 2 */
4823 break;
4824 case MII_TPISTATUS: /* TPI status for 10mbps */
4825 break;
4826 case MII_NCONFIG: /* network interface config */
4827 break;
4828 default:
4829 break;
4830 }
4831 return rc;
4832 }
4833
4834
4835 static const char *
4836 qeth_arp_get_error_cause(int *rc)
4837 {
4838 switch (*rc) {
4839 case QETH_IPA_ARP_RC_FAILED:
4840 *rc = -EIO;
4841 return "operation failed";
4842 case QETH_IPA_ARP_RC_NOTSUPP:
4843 *rc = -EOPNOTSUPP;
4844 return "operation not supported";
4845 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4846 *rc = -EINVAL;
4847 return "argument out of range";
4848 case QETH_IPA_ARP_RC_Q_NOTSUPP:
4849 *rc = -EOPNOTSUPP;
4850 return "query operation not supported";
4851 case QETH_IPA_ARP_RC_Q_NO_DATA:
4852 *rc = -ENOENT;
4853 return "no query data available";
4854 default:
4855 return "unknown error";
4856 }
4857 }
4858
4859 static int
4860 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4861 __u16, long);
4862
4863 static int
4864 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4865 {
4866 int tmp;
4867 int rc;
4868
4869 QETH_DBF_TEXT(trace,3,"arpstnoe");
4870
4871 /*
4872 * currently GuestLAN only supports the ARP assist function
4873 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4874 * thus we say EOPNOTSUPP for this ARP function
4875 */
4876 if (card->info.guestlan)
4877 return -EOPNOTSUPP;
4878 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4879 PRINT_WARN("ARP processing not supported "
4880 "on %s!\n", QETH_CARD_IFNAME(card));
4881 return -EOPNOTSUPP;
4882 }
4883 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4884 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4885 no_entries);
4886 if (rc) {
4887 tmp = rc;
4888 PRINT_WARN("Could not set number of ARP entries on %s: "
4889 "%s (0x%x/%d)\n",
4890 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4891 tmp, tmp);
4892 }
4893 return rc;
4894 }
4895
4896 static void
4897 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4898 struct qeth_arp_query_data *qdata,
4899 int entry_size, int uentry_size)
4900 {
4901 char *entry_ptr;
4902 char *uentry_ptr;
4903 int i;
4904
4905 entry_ptr = (char *)&qdata->data;
4906 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4907 for (i = 0; i < qdata->no_entries; ++i){
4908 /* strip off 32 bytes "media specific information" */
4909 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4910 entry_ptr += entry_size;
4911 uentry_ptr += uentry_size;
4912 }
4913 }
4914
4915 static int
4916 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4917 unsigned long data)
4918 {
4919 struct qeth_ipa_cmd *cmd;
4920 struct qeth_arp_query_data *qdata;
4921 struct qeth_arp_query_info *qinfo;
4922 int entry_size;
4923 int uentry_size;
4924 int i;
4925
4926 QETH_DBF_TEXT(trace,4,"arpquecb");
4927
4928 qinfo = (struct qeth_arp_query_info *) reply->param;
4929 cmd = (struct qeth_ipa_cmd *) data;
4930 if (cmd->hdr.return_code) {
4931 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4932 return 0;
4933 }
4934 if (cmd->data.setassparms.hdr.return_code) {
4935 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4936 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4937 return 0;
4938 }
4939 qdata = &cmd->data.setassparms.data.query_arp;
4940 switch(qdata->reply_bits){
4941 case 5:
4942 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4943 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4944 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4945 break;
4946 case 7:
4947 /* fall through to default */
4948 default:
4949 /* tr is the same as eth -> entry7 */
4950 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4951 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4952 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4953 break;
4954 }
4955 /* check if there is enough room in userspace */
4956 if ((qinfo->udata_len - qinfo->udata_offset) <
4957 qdata->no_entries * uentry_size){
4958 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4959 cmd->hdr.return_code = -ENOMEM;
4960 PRINT_WARN("query ARP user space buffer is too small for "
4961 "the returned number of ARP entries. "
4962 "Aborting query!\n");
4963 goto out_error;
4964 }
4965 QETH_DBF_TEXT_(trace, 4, "anore%i",
4966 cmd->data.setassparms.hdr.number_of_replies);
4967 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4968 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4969
4970 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4971 /* strip off "media specific information" */
4972 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4973 uentry_size);
4974 } else
4975 /*copy entries to user buffer*/
4976 memcpy(qinfo->udata + qinfo->udata_offset,
4977 (char *)&qdata->data, qdata->no_entries*uentry_size);
4978
4979 qinfo->no_entries += qdata->no_entries;
4980 qinfo->udata_offset += (qdata->no_entries*uentry_size);
4981 /* check if all replies received ... */
4982 if (cmd->data.setassparms.hdr.seq_no <
4983 cmd->data.setassparms.hdr.number_of_replies)
4984 return 1;
4985 memcpy(qinfo->udata, &qinfo->no_entries, 4);
4986 /* keep STRIP_ENTRIES flag so the user program can distinguish
4987 * stripped entries from normal ones */
4988 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4989 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4990 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4991 return 0;
4992 out_error:
4993 i = 0;
4994 memcpy(qinfo->udata, &i, 4);
4995 return 0;
4996 }
4997
4998 static int
4999 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
5000 int len, int (*reply_cb)(struct qeth_card *,
5001 struct qeth_reply *,
5002 unsigned long),
5003 void *reply_param)
5004 {
5005 QETH_DBF_TEXT(trace,4,"sendarp");
5006
5007 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
5008 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
5009 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
5010 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
5011 reply_cb, reply_param);
5012 }
5013
5014 static int
5015 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
5016 int len, int (*reply_cb)(struct qeth_card *,
5017 struct qeth_reply *,
5018 unsigned long),
5019 void *reply_param)
5020 {
5021 u16 s1, s2;
5022
5023 QETH_DBF_TEXT(trace,4,"sendsnmp");
5024
5025 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
5026 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
5027 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
5028 /* adjust PDU length fields in IPA_PDU_HEADER */
5029 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
5030 s2 = (u32) len;
5031 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
5032 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
5033 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
5034 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
5035 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
5036 reply_cb, reply_param);
5037 }
5038
5039 static struct qeth_cmd_buffer *
5040 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
5041 __u16, __u16, enum qeth_prot_versions);
5042 static int
5043 qeth_arp_query(struct qeth_card *card, char __user *udata)
5044 {
5045 struct qeth_cmd_buffer *iob;
5046 struct qeth_arp_query_info qinfo = {0, };
5047 int tmp;
5048 int rc;
5049
5050 QETH_DBF_TEXT(trace,3,"arpquery");
5051
5052 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
5053 IPA_ARP_PROCESSING)) {
5054 PRINT_WARN("ARP processing not supported "
5055 "on %s!\n", QETH_CARD_IFNAME(card));
5056 return -EOPNOTSUPP;
5057 }
5058 /* get size of userspace buffer and mask_bits -> 6 bytes */
5059 if (copy_from_user(&qinfo, udata, 6))
5060 return -EFAULT;
5061 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
5062 return -ENOMEM;
5063 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
5064 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5065 IPA_CMD_ASS_ARP_QUERY_INFO,
5066 sizeof(int),QETH_PROT_IPV4);
5067
5068 rc = qeth_send_ipa_arp_cmd(card, iob,
5069 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
5070 qeth_arp_query_cb, (void *)&qinfo);
5071 if (rc) {
5072 tmp = rc;
5073 PRINT_WARN("Error while querying ARP cache on %s: %s "
5074 "(0x%x/%d)\n",
5075 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5076 tmp, tmp);
5077 if (copy_to_user(udata, qinfo.udata, 4))
5078 rc = -EFAULT;
5079 } else {
5080 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5081 rc = -EFAULT;
5082 }
5083 kfree(qinfo.udata);
5084 return rc;
5085 }
5086
5087 /**
5088 * SNMP command callback
5089 */
5090 static int
5091 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
5092 unsigned long sdata)
5093 {
5094 struct qeth_ipa_cmd *cmd;
5095 struct qeth_arp_query_info *qinfo;
5096 struct qeth_snmp_cmd *snmp;
5097 unsigned char *data;
5098 __u16 data_len;
5099
5100 QETH_DBF_TEXT(trace,3,"snpcmdcb");
5101
5102 cmd = (struct qeth_ipa_cmd *) sdata;
5103 data = (unsigned char *)((char *)cmd - reply->offset);
5104 qinfo = (struct qeth_arp_query_info *) reply->param;
5105 snmp = &cmd->data.setadapterparms.data.snmp;
5106
5107 if (cmd->hdr.return_code) {
5108 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
5109 return 0;
5110 }
5111 if (cmd->data.setadapterparms.hdr.return_code) {
5112 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5113 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
5114 return 0;
5115 }
5116 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
5117 if (cmd->data.setadapterparms.hdr.seq_no == 1)
5118 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
5119 else
5120 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
5121
5122 /* check if there is enough room in userspace */
5123 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
5124 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
5125 cmd->hdr.return_code = -ENOMEM;
5126 return 0;
5127 }
5128 QETH_DBF_TEXT_(trace, 4, "snore%i",
5129 cmd->data.setadapterparms.hdr.used_total);
5130 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
5131 /*copy entries to user buffer*/
5132 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
5133 memcpy(qinfo->udata + qinfo->udata_offset,
5134 (char *)snmp,
5135 data_len + offsetof(struct qeth_snmp_cmd,data));
5136 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
5137 } else {
5138 memcpy(qinfo->udata + qinfo->udata_offset,
5139 (char *)&snmp->request, data_len);
5140 }
5141 qinfo->udata_offset += data_len;
5142 /* check if all replies received ... */
5143 QETH_DBF_TEXT_(trace, 4, "srtot%i",
5144 cmd->data.setadapterparms.hdr.used_total);
5145 QETH_DBF_TEXT_(trace, 4, "srseq%i",
5146 cmd->data.setadapterparms.hdr.seq_no);
5147 if (cmd->data.setadapterparms.hdr.seq_no <
5148 cmd->data.setadapterparms.hdr.used_total)
5149 return 1;
5150 return 0;
5151 }
5152
5153 static struct qeth_cmd_buffer *
5154 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
5155 enum qeth_prot_versions );
5156
5157 static struct qeth_cmd_buffer *
5158 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
5159 {
5160 struct qeth_cmd_buffer *iob;
5161 struct qeth_ipa_cmd *cmd;
5162
5163 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
5164 QETH_PROT_IPV4);
5165 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5166 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
5167 cmd->data.setadapterparms.hdr.command_code = command;
5168 cmd->data.setadapterparms.hdr.used_total = 1;
5169 cmd->data.setadapterparms.hdr.seq_no = 1;
5170
5171 return iob;
5172 }
5173
5174 /**
5175 * function to send SNMP commands to OSA-E card
5176 */
5177 static int
5178 qeth_snmp_command(struct qeth_card *card, char __user *udata)
5179 {
5180 struct qeth_cmd_buffer *iob;
5181 struct qeth_ipa_cmd *cmd;
5182 struct qeth_snmp_ureq *ureq;
5183 int req_len;
5184 struct qeth_arp_query_info qinfo = {0, };
5185 int rc = 0;
5186
5187 QETH_DBF_TEXT(trace,3,"snmpcmd");
5188
5189 if (card->info.guestlan)
5190 return -EOPNOTSUPP;
5191
5192 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
5193 (!card->options.layer2) ) {
5194 PRINT_WARN("SNMP Query MIBS not supported "
5195 "on %s!\n", QETH_CARD_IFNAME(card));
5196 return -EOPNOTSUPP;
5197 }
5198 /* skip 4 bytes (data_len struct member) to get req_len */
5199 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
5200 return -EFAULT;
5201 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
5202 if (!ureq) {
5203 QETH_DBF_TEXT(trace, 2, "snmpnome");
5204 return -ENOMEM;
5205 }
5206 if (copy_from_user(ureq, udata,
5207 req_len+sizeof(struct qeth_snmp_ureq_hdr))){
5208 kfree(ureq);
5209 return -EFAULT;
5210 }
5211 qinfo.udata_len = ureq->hdr.data_len;
5212 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
5213 kfree(ureq);
5214 return -ENOMEM;
5215 }
5216 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5217
5218 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5219 QETH_SNMP_SETADP_CMDLENGTH + req_len);
5220 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5221 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5222 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5223 qeth_snmp_command_cb, (void *)&qinfo);
5224 if (rc)
5225 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5226 QETH_CARD_IFNAME(card), rc);
5227 else {
5228 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5229 rc = -EFAULT;
5230 }
5231
5232 kfree(ureq);
5233 kfree(qinfo.udata);
5234 return rc;
5235 }
5236
5237 static int
5238 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5239 unsigned long);
5240
5241 static int
5242 qeth_default_setadapterparms_cb(struct qeth_card *card,
5243 struct qeth_reply *reply,
5244 unsigned long data);
5245 static int
5246 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5247 __u16, long,
5248 int (*reply_cb)
5249 (struct qeth_card *, struct qeth_reply *, unsigned long),
5250 void *reply_param);
5251
5252 static int
5253 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5254 {
5255 struct qeth_cmd_buffer *iob;
5256 char buf[16];
5257 int tmp;
5258 int rc;
5259
5260 QETH_DBF_TEXT(trace,3,"arpadent");
5261
5262 /*
5263 * currently GuestLAN only supports the ARP assist function
5264 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5265 * thus we say EOPNOTSUPP for this ARP function
5266 */
5267 if (card->info.guestlan)
5268 return -EOPNOTSUPP;
5269 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5270 PRINT_WARN("ARP processing not supported "
5271 "on %s!\n", QETH_CARD_IFNAME(card));
5272 return -EOPNOTSUPP;
5273 }
5274
5275 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5276 IPA_CMD_ASS_ARP_ADD_ENTRY,
5277 sizeof(struct qeth_arp_cache_entry),
5278 QETH_PROT_IPV4);
5279 rc = qeth_send_setassparms(card, iob,
5280 sizeof(struct qeth_arp_cache_entry),
5281 (unsigned long) entry,
5282 qeth_default_setassparms_cb, NULL);
5283 if (rc) {
5284 tmp = rc;
5285 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5286 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5287 "%s (0x%x/%d)\n",
5288 buf, QETH_CARD_IFNAME(card),
5289 qeth_arp_get_error_cause(&rc), tmp, tmp);
5290 }
5291 return rc;
5292 }
5293
5294 static int
5295 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5296 {
5297 struct qeth_cmd_buffer *iob;
5298 char buf[16] = {0, };
5299 int tmp;
5300 int rc;
5301
5302 QETH_DBF_TEXT(trace,3,"arprment");
5303
5304 /*
5305 * currently GuestLAN only supports the ARP assist function
5306 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5307 * thus we say EOPNOTSUPP for this ARP function
5308 */
5309 if (card->info.guestlan)
5310 return -EOPNOTSUPP;
5311 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5312 PRINT_WARN("ARP processing not supported "
5313 "on %s!\n", QETH_CARD_IFNAME(card));
5314 return -EOPNOTSUPP;
5315 }
5316 memcpy(buf, entry, 12);
5317 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5318 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5319 12,
5320 QETH_PROT_IPV4);
5321 rc = qeth_send_setassparms(card, iob,
5322 12, (unsigned long)buf,
5323 qeth_default_setassparms_cb, NULL);
5324 if (rc) {
5325 tmp = rc;
5326 memset(buf, 0, 16);
5327 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5328 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5329 "%s (0x%x/%d)\n",
5330 buf, QETH_CARD_IFNAME(card),
5331 qeth_arp_get_error_cause(&rc), tmp, tmp);
5332 }
5333 return rc;
5334 }
5335
5336 static int
5337 qeth_arp_flush_cache(struct qeth_card *card)
5338 {
5339 int rc;
5340 int tmp;
5341
5342 QETH_DBF_TEXT(trace,3,"arpflush");
5343
5344 /*
5345 * currently GuestLAN only supports the ARP assist function
5346 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5347 * thus we say EOPNOTSUPP for this ARP function
5348 */
5349 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5350 return -EOPNOTSUPP;
5351 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5352 PRINT_WARN("ARP processing not supported "
5353 "on %s!\n", QETH_CARD_IFNAME(card));
5354 return -EOPNOTSUPP;
5355 }
5356 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5357 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5358 if (rc){
5359 tmp = rc;
5360 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5361 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5362 tmp, tmp);
5363 }
5364 return rc;
5365 }
5366
5367 static int
5368 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5369 {
5370 struct qeth_card *card = (struct qeth_card *)dev->priv;
5371 struct qeth_arp_cache_entry arp_entry;
5372 struct mii_ioctl_data *mii_data;
5373 int rc = 0;
5374
5375 if (!card)
5376 return -ENODEV;
5377
5378 if ((card->state != CARD_STATE_UP) &&
5379 (card->state != CARD_STATE_SOFTSETUP))
5380 return -ENODEV;
5381
5382 if (card->info.type == QETH_CARD_TYPE_OSN)
5383 return -EPERM;
5384
5385 switch (cmd){
5386 case SIOC_QETH_ARP_SET_NO_ENTRIES:
5387 if ( !capable(CAP_NET_ADMIN) ||
5388 (card->options.layer2) ) {
5389 rc = -EPERM;
5390 break;
5391 }
5392 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5393 break;
5394 case SIOC_QETH_ARP_QUERY_INFO:
5395 if ( !capable(CAP_NET_ADMIN) ||
5396 (card->options.layer2) ) {
5397 rc = -EPERM;
5398 break;
5399 }
5400 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5401 break;
5402 case SIOC_QETH_ARP_ADD_ENTRY:
5403 if ( !capable(CAP_NET_ADMIN) ||
5404 (card->options.layer2) ) {
5405 rc = -EPERM;
5406 break;
5407 }
5408 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5409 sizeof(struct qeth_arp_cache_entry)))
5410 rc = -EFAULT;
5411 else
5412 rc = qeth_arp_add_entry(card, &arp_entry);
5413 break;
5414 case SIOC_QETH_ARP_REMOVE_ENTRY:
5415 if ( !capable(CAP_NET_ADMIN) ||
5416 (card->options.layer2) ) {
5417 rc = -EPERM;
5418 break;
5419 }
5420 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5421 sizeof(struct qeth_arp_cache_entry)))
5422 rc = -EFAULT;
5423 else
5424 rc = qeth_arp_remove_entry(card, &arp_entry);
5425 break;
5426 case SIOC_QETH_ARP_FLUSH_CACHE:
5427 if ( !capable(CAP_NET_ADMIN) ||
5428 (card->options.layer2) ) {
5429 rc = -EPERM;
5430 break;
5431 }
5432 rc = qeth_arp_flush_cache(card);
5433 break;
5434 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5435 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5436 break;
5437 case SIOC_QETH_GET_CARD_TYPE:
5438 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5439 !card->info.guestlan)
5440 return 1;
5441 return 0;
5442 break;
5443 case SIOCGMIIPHY:
5444 mii_data = if_mii(rq);
5445 mii_data->phy_id = 0;
5446 break;
5447 case SIOCGMIIREG:
5448 mii_data = if_mii(rq);
5449 if (mii_data->phy_id != 0)
5450 rc = -EINVAL;
5451 else
5452 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5453 mii_data->reg_num);
5454 break;
5455 default:
5456 rc = -EOPNOTSUPP;
5457 }
5458 if (rc)
5459 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5460 return rc;
5461 }
5462
5463 static struct net_device_stats *
5464 qeth_get_stats(struct net_device *dev)
5465 {
5466 struct qeth_card *card;
5467
5468 card = (struct qeth_card *) (dev->priv);
5469
5470 QETH_DBF_TEXT(trace,5,"getstat");
5471
5472 return &card->stats;
5473 }
5474
5475 static int
5476 qeth_change_mtu(struct net_device *dev, int new_mtu)
5477 {
5478 struct qeth_card *card;
5479 char dbf_text[15];
5480
5481 card = (struct qeth_card *) (dev->priv);
5482
5483 QETH_DBF_TEXT(trace,4,"chgmtu");
5484 sprintf(dbf_text, "%8x", new_mtu);
5485 QETH_DBF_TEXT(trace,4,dbf_text);
5486
5487 if (new_mtu < 64)
5488 return -EINVAL;
5489 if (new_mtu > 65535)
5490 return -EINVAL;
5491 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5492 (!qeth_mtu_is_valid(card, new_mtu)))
5493 return -EINVAL;
5494 dev->mtu = new_mtu;
5495 return 0;
5496 }
5497
5498 #ifdef CONFIG_QETH_VLAN
5499 static void
5500 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5501 {
5502 struct qeth_card *card;
5503 unsigned long flags;
5504
5505 QETH_DBF_TEXT(trace,4,"vlanreg");
5506
5507 card = (struct qeth_card *) dev->priv;
5508 spin_lock_irqsave(&card->vlanlock, flags);
5509 card->vlangrp = grp;
5510 spin_unlock_irqrestore(&card->vlanlock, flags);
5511 }
5512
5513 static void
5514 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5515 unsigned short vid)
5516 {
5517 int i;
5518 struct sk_buff *skb;
5519 struct sk_buff_head tmp_list;
5520
5521 skb_queue_head_init(&tmp_list);
5522 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5523 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5524 while ((skb = skb_dequeue(&buf->skb_list))){
5525 if (vlan_tx_tag_present(skb) &&
5526 (vlan_tx_tag_get(skb) == vid)) {
5527 atomic_dec(&skb->users);
5528 dev_kfree_skb(skb);
5529 } else
5530 skb_queue_tail(&tmp_list, skb);
5531 }
5532 }
5533 while ((skb = skb_dequeue(&tmp_list)))
5534 skb_queue_tail(&buf->skb_list, skb);
5535 }
5536
5537 static void
5538 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5539 {
5540 int i, j;
5541
5542 QETH_DBF_TEXT(trace, 4, "frvlskbs");
5543 for (i = 0; i < card->qdio.no_out_queues; ++i){
5544 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5545 qeth_free_vlan_buffer(card, &card->qdio.
5546 out_qs[i]->bufs[j], vid);
5547 }
5548 }
5549
5550 static void
5551 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5552 {
5553 struct in_device *in_dev;
5554 struct in_ifaddr *ifa;
5555 struct qeth_ipaddr *addr;
5556
5557 QETH_DBF_TEXT(trace, 4, "frvaddr4");
5558
5559 rcu_read_lock();
5560 in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
5561 if (!in_dev)
5562 goto out;
5563 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5564 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5565 if (addr){
5566 addr->u.a4.addr = ifa->ifa_address;
5567 addr->u.a4.mask = ifa->ifa_mask;
5568 addr->type = QETH_IP_TYPE_NORMAL;
5569 if (!qeth_delete_ip(card, addr))
5570 kfree(addr);
5571 }
5572 }
5573 out:
5574 rcu_read_unlock();
5575 }
5576
5577 static void
5578 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5579 {
5580 #ifdef CONFIG_QETH_IPV6
5581 struct inet6_dev *in6_dev;
5582 struct inet6_ifaddr *ifa;
5583 struct qeth_ipaddr *addr;
5584
5585 QETH_DBF_TEXT(trace, 4, "frvaddr6");
5586
5587 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
5588 if (!in6_dev)
5589 return;
5590 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5591 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5592 if (addr){
5593 memcpy(&addr->u.a6.addr, &ifa->addr,
5594 sizeof(struct in6_addr));
5595 addr->u.a6.pfxlen = ifa->prefix_len;
5596 addr->type = QETH_IP_TYPE_NORMAL;
5597 if (!qeth_delete_ip(card, addr))
5598 kfree(addr);
5599 }
5600 }
5601 in6_dev_put(in6_dev);
5602 #endif /* CONFIG_QETH_IPV6 */
5603 }
5604
5605 static void
5606 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5607 {
5608 if (card->options.layer2 || !card->vlangrp)
5609 return;
5610 qeth_free_vlan_addresses4(card, vid);
5611 qeth_free_vlan_addresses6(card, vid);
5612 }
5613
5614 static int
5615 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5616 struct qeth_reply *reply,
5617 unsigned long data)
5618 {
5619 struct qeth_ipa_cmd *cmd;
5620
5621 QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5622 cmd = (struct qeth_ipa_cmd *) data;
5623 if (cmd->hdr.return_code) {
5624 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5625 "Continuing\n",cmd->data.setdelvlan.vlan_id,
5626 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5627 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5628 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5629 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5630 }
5631 return 0;
5632 }
5633
5634 static int
5635 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5636 enum qeth_ipa_cmds ipacmd)
5637 {
5638 struct qeth_ipa_cmd *cmd;
5639 struct qeth_cmd_buffer *iob;
5640
5641 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5642 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5643 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5644 cmd->data.setdelvlan.vlan_id = i;
5645 return qeth_send_ipa_cmd(card, iob,
5646 qeth_layer2_send_setdelvlan_cb, NULL);
5647 }
5648
5649 static void
5650 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5651 {
5652 unsigned short i;
5653
5654 QETH_DBF_TEXT(trace, 3, "L2prcvln");
5655
5656 if (!card->vlangrp)
5657 return;
5658 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5659 if (vlan_group_get_device(card->vlangrp, i) == NULL)
5660 continue;
5661 if (clear)
5662 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5663 else
5664 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5665 }
5666 }
5667
5668 /*add_vid is layer 2 used only ....*/
5669 static void
5670 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5671 {
5672 struct qeth_card *card;
5673
5674 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5675
5676 card = (struct qeth_card *) dev->priv;
5677 if (!card->options.layer2)
5678 return;
5679 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5680 }
5681
5682 /*... kill_vid used for both modes*/
5683 static void
5684 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5685 {
5686 struct qeth_card *card;
5687 unsigned long flags;
5688
5689 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5690
5691 card = (struct qeth_card *) dev->priv;
5692 /* free all skbs for the vlan device */
5693 qeth_free_vlan_skbs(card, vid);
5694 spin_lock_irqsave(&card->vlanlock, flags);
5695 /* unregister IP addresses of vlan device */
5696 qeth_free_vlan_addresses(card, vid);
5697 vlan_group_set_device(card->vlangrp, vid, NULL);
5698 spin_unlock_irqrestore(&card->vlanlock, flags);
5699 if (card->options.layer2)
5700 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5701 qeth_set_multicast_list(card->dev);
5702 }
5703 #endif
5704 /**
5705 * Examine hardware response to SET_PROMISC_MODE
5706 */
5707 static int
5708 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5709 struct qeth_reply *reply,
5710 unsigned long data)
5711 {
5712 struct qeth_ipa_cmd *cmd;
5713 struct qeth_ipacmd_setadpparms *setparms;
5714
5715 QETH_DBF_TEXT(trace,4,"prmadpcb");
5716
5717 cmd = (struct qeth_ipa_cmd *) data;
5718 setparms = &(cmd->data.setadapterparms);
5719
5720 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5721 if (cmd->hdr.return_code) {
5722 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5723 setparms->data.mode = SET_PROMISC_MODE_OFF;
5724 }
5725 card->info.promisc_mode = setparms->data.mode;
5726 return 0;
5727 }
5728 /*
5729 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5730 */
5731 static void
5732 qeth_setadp_promisc_mode(struct qeth_card *card)
5733 {
5734 enum qeth_ipa_promisc_modes mode;
5735 struct net_device *dev = card->dev;
5736 struct qeth_cmd_buffer *iob;
5737 struct qeth_ipa_cmd *cmd;
5738
5739 QETH_DBF_TEXT(trace, 4, "setprom");
5740
5741 if (((dev->flags & IFF_PROMISC) &&
5742 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5743 (!(dev->flags & IFF_PROMISC) &&
5744 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5745 return;
5746 mode = SET_PROMISC_MODE_OFF;
5747 if (dev->flags & IFF_PROMISC)
5748 mode = SET_PROMISC_MODE_ON;
5749 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5750
5751 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5752 sizeof(struct qeth_ipacmd_setadpparms));
5753 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5754 cmd->data.setadapterparms.data.mode = mode;
5755 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5756 }
5757
5758 /**
5759 * set multicast address on card
5760 */
5761 static void
5762 qeth_set_multicast_list(struct net_device *dev)
5763 {
5764 struct qeth_card *card = (struct qeth_card *) dev->priv;
5765
5766 if (card->info.type == QETH_CARD_TYPE_OSN)
5767 return ;
5768
5769 QETH_DBF_TEXT(trace, 3, "setmulti");
5770 qeth_delete_mc_addresses(card);
5771 if (card->options.layer2) {
5772 qeth_layer2_add_multicast(card);
5773 goto out;
5774 }
5775 qeth_add_multicast_ipv4(card);
5776 #ifdef CONFIG_QETH_IPV6
5777 qeth_add_multicast_ipv6(card);
5778 #endif
5779 out:
5780 qeth_set_ip_addr_list(card);
5781 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5782 return;
5783 qeth_setadp_promisc_mode(card);
5784 }
5785
5786 static int
5787 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5788 {
5789 return 0;
5790 }
5791
5792 static void
5793 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5794 {
5795 if (dev->type == ARPHRD_IEEE802_TR)
5796 ip_tr_mc_map(ipm, mac);
5797 else
5798 ip_eth_mc_map(ipm, mac);
5799 }
5800
5801 static struct qeth_ipaddr *
5802 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5803 {
5804 struct qeth_ipaddr *addr;
5805
5806 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5807 if (addr == NULL) {
5808 PRINT_WARN("Not enough memory to add address\n");
5809 return NULL;
5810 }
5811 addr->type = QETH_IP_TYPE_NORMAL;
5812 addr->proto = prot;
5813 return addr;
5814 }
5815
5816 int
5817 qeth_osn_assist(struct net_device *dev,
5818 void *data,
5819 int data_len)
5820 {
5821 struct qeth_cmd_buffer *iob;
5822 struct qeth_card *card;
5823 int rc;
5824
5825 QETH_DBF_TEXT(trace, 2, "osnsdmc");
5826 if (!dev)
5827 return -ENODEV;
5828 card = (struct qeth_card *)dev->priv;
5829 if (!card)
5830 return -ENODEV;
5831 if ((card->state != CARD_STATE_UP) &&
5832 (card->state != CARD_STATE_SOFTSETUP))
5833 return -ENODEV;
5834 iob = qeth_wait_for_buffer(&card->write);
5835 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5836 rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5837 return rc;
5838 }
5839
5840 static struct net_device *
5841 qeth_netdev_by_devno(unsigned char *read_dev_no)
5842 {
5843 struct qeth_card *card;
5844 struct net_device *ndev;
5845 unsigned char *readno;
5846 __u16 temp_dev_no, card_dev_no;
5847 char *endp;
5848 unsigned long flags;
5849
5850 ndev = NULL;
5851 memcpy(&temp_dev_no, read_dev_no, 2);
5852 read_lock_irqsave(&qeth_card_list.rwlock, flags);
5853 list_for_each_entry(card, &qeth_card_list.list, list) {
5854 readno = CARD_RDEV_ID(card);
5855 readno += (strlen(readno) - 4);
5856 card_dev_no = simple_strtoul(readno, &endp, 16);
5857 if (card_dev_no == temp_dev_no) {
5858 ndev = card->dev;
5859 break;
5860 }
5861 }
5862 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5863 return ndev;
5864 }
5865
5866 int
5867 qeth_osn_register(unsigned char *read_dev_no,
5868 struct net_device **dev,
5869 int (*assist_cb)(struct net_device *, void *),
5870 int (*data_cb)(struct sk_buff *))
5871 {
5872 struct qeth_card * card;
5873
5874 QETH_DBF_TEXT(trace, 2, "osnreg");
5875 *dev = qeth_netdev_by_devno(read_dev_no);
5876 if (*dev == NULL)
5877 return -ENODEV;
5878 card = (struct qeth_card *)(*dev)->priv;
5879 if (!card)
5880 return -ENODEV;
5881 if ((assist_cb == NULL) || (data_cb == NULL))
5882 return -EINVAL;
5883 card->osn_info.assist_cb = assist_cb;
5884 card->osn_info.data_cb = data_cb;
5885 return 0;
5886 }
5887
5888 void
5889 qeth_osn_deregister(struct net_device * dev)
5890 {
5891 struct qeth_card *card;
5892
5893 QETH_DBF_TEXT(trace, 2, "osndereg");
5894 if (!dev)
5895 return;
5896 card = (struct qeth_card *)dev->priv;
5897 if (!card)
5898 return;
5899 card->osn_info.assist_cb = NULL;
5900 card->osn_info.data_cb = NULL;
5901 return;
5902 }
5903
5904 static void
5905 qeth_delete_mc_addresses(struct qeth_card *card)
5906 {
5907 struct qeth_ipaddr *iptodo;
5908 unsigned long flags;
5909
5910 QETH_DBF_TEXT(trace,4,"delmc");
5911 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5912 if (!iptodo) {
5913 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5914 return;
5915 }
5916 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5917 spin_lock_irqsave(&card->ip_lock, flags);
5918 if (!__qeth_insert_ip_todo(card, iptodo, 0))
5919 kfree(iptodo);
5920 spin_unlock_irqrestore(&card->ip_lock, flags);
5921 }
5922
5923 static void
5924 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5925 {
5926 struct qeth_ipaddr *ipm;
5927 struct ip_mc_list *im4;
5928 char buf[MAX_ADDR_LEN];
5929
5930 QETH_DBF_TEXT(trace,4,"addmc");
5931 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5932 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5933 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5934 if (!ipm)
5935 continue;
5936 ipm->u.a4.addr = im4->multiaddr;
5937 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5938 ipm->is_multicast = 1;
5939 if (!qeth_add_ip(card,ipm))
5940 kfree(ipm);
5941 }
5942 }
5943
5944 static inline void
5945 qeth_add_vlan_mc(struct qeth_card *card)
5946 {
5947 #ifdef CONFIG_QETH_VLAN
5948 struct in_device *in_dev;
5949 struct vlan_group *vg;
5950 int i;
5951
5952 QETH_DBF_TEXT(trace,4,"addmcvl");
5953 if ( ((card->options.layer2 == 0) &&
5954 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5955 (card->vlangrp == NULL) )
5956 return ;
5957
5958 vg = card->vlangrp;
5959 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5960 struct net_device *netdev = vlan_group_get_device(vg, i);
5961 if (netdev == NULL ||
5962 !(netdev->flags & IFF_UP))
5963 continue;
5964 in_dev = in_dev_get(netdev);
5965 if (!in_dev)
5966 continue;
5967 read_lock(&in_dev->mc_list_lock);
5968 qeth_add_mc(card,in_dev);
5969 read_unlock(&in_dev->mc_list_lock);
5970 in_dev_put(in_dev);
5971 }
5972 #endif
5973 }
5974
5975 static void
5976 qeth_add_multicast_ipv4(struct qeth_card *card)
5977 {
5978 struct in_device *in4_dev;
5979
5980 QETH_DBF_TEXT(trace,4,"chkmcv4");
5981 in4_dev = in_dev_get(card->dev);
5982 if (in4_dev == NULL)
5983 return;
5984 read_lock(&in4_dev->mc_list_lock);
5985 qeth_add_mc(card, in4_dev);
5986 qeth_add_vlan_mc(card);
5987 read_unlock(&in4_dev->mc_list_lock);
5988 in_dev_put(in4_dev);
5989 }
5990
5991 static void
5992 qeth_layer2_add_multicast(struct qeth_card *card)
5993 {
5994 struct qeth_ipaddr *ipm;
5995 struct dev_mc_list *dm;
5996
5997 QETH_DBF_TEXT(trace,4,"L2addmc");
5998 for (dm = card->dev->mc_list; dm; dm = dm->next) {
5999 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
6000 if (!ipm)
6001 continue;
6002 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
6003 ipm->is_multicast = 1;
6004 if (!qeth_add_ip(card, ipm))
6005 kfree(ipm);
6006 }
6007 }
6008
6009 #ifdef CONFIG_QETH_IPV6
6010 static void
6011 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
6012 {
6013 struct qeth_ipaddr *ipm;
6014 struct ifmcaddr6 *im6;
6015 char buf[MAX_ADDR_LEN];
6016
6017 QETH_DBF_TEXT(trace,4,"addmc6");
6018 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
6019 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
6020 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
6021 if (!ipm)
6022 continue;
6023 ipm->is_multicast = 1;
6024 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
6025 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
6026 sizeof(struct in6_addr));
6027 if (!qeth_add_ip(card,ipm))
6028 kfree(ipm);
6029 }
6030 }
6031
6032 static inline void
6033 qeth_add_vlan_mc6(struct qeth_card *card)
6034 {
6035 #ifdef CONFIG_QETH_VLAN
6036 struct inet6_dev *in_dev;
6037 struct vlan_group *vg;
6038 int i;
6039
6040 QETH_DBF_TEXT(trace,4,"admc6vl");
6041 if ( ((card->options.layer2 == 0) &&
6042 (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
6043 (card->vlangrp == NULL))
6044 return ;
6045
6046 vg = card->vlangrp;
6047 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
6048 struct net_device *netdev = vlan_group_get_device(vg, i);
6049 if (netdev == NULL ||
6050 !(netdev->flags & IFF_UP))
6051 continue;
6052 in_dev = in6_dev_get(netdev);
6053 if (!in_dev)
6054 continue;
6055 read_lock_bh(&in_dev->lock);
6056 qeth_add_mc6(card,in_dev);
6057 read_unlock_bh(&in_dev->lock);
6058 in6_dev_put(in_dev);
6059 }
6060 #endif /* CONFIG_QETH_VLAN */
6061 }
6062
6063 static void
6064 qeth_add_multicast_ipv6(struct qeth_card *card)
6065 {
6066 struct inet6_dev *in6_dev;
6067
6068 QETH_DBF_TEXT(trace,4,"chkmcv6");
6069 if (!qeth_is_supported(card, IPA_IPV6))
6070 return ;
6071 in6_dev = in6_dev_get(card->dev);
6072 if (in6_dev == NULL)
6073 return;
6074 read_lock_bh(&in6_dev->lock);
6075 qeth_add_mc6(card, in6_dev);
6076 qeth_add_vlan_mc6(card);
6077 read_unlock_bh(&in6_dev->lock);
6078 in6_dev_put(in6_dev);
6079 }
6080 #endif /* CONFIG_QETH_IPV6 */
6081
6082 static int
6083 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
6084 enum qeth_ipa_cmds ipacmd,
6085 int (*reply_cb) (struct qeth_card *,
6086 struct qeth_reply*,
6087 unsigned long))
6088 {
6089 struct qeth_ipa_cmd *cmd;
6090 struct qeth_cmd_buffer *iob;
6091
6092 QETH_DBF_TEXT(trace, 2, "L2sdmac");
6093 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
6094 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6095 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
6096 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
6097 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
6098 }
6099
6100 static int
6101 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
6102 struct qeth_reply *reply,
6103 unsigned long data)
6104 {
6105 struct qeth_ipa_cmd *cmd;
6106 __u8 *mac;
6107
6108 QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
6109 cmd = (struct qeth_ipa_cmd *) data;
6110 mac = &cmd->data.setdelmac.mac[0];
6111 /* MAC already registered, needed in couple/uncouple case */
6112 if (cmd->hdr.return_code == 0x2005) {
6113 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
6114 "already existing on %s \n",
6115 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6116 QETH_CARD_IFNAME(card));
6117 cmd->hdr.return_code = 0;
6118 }
6119 if (cmd->hdr.return_code)
6120 PRINT_ERR("Could not set group MAC " \
6121 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6122 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6123 QETH_CARD_IFNAME(card),cmd->hdr.return_code);
6124 return 0;
6125 }
6126
6127 static int
6128 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
6129 {
6130 QETH_DBF_TEXT(trace, 2, "L2Sgmac");
6131 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
6132 qeth_layer2_send_setgroupmac_cb);
6133 }
6134
6135 static int
6136 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
6137 struct qeth_reply *reply,
6138 unsigned long data)
6139 {
6140 struct qeth_ipa_cmd *cmd;
6141 __u8 *mac;
6142
6143 QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
6144 cmd = (struct qeth_ipa_cmd *) data;
6145 mac = &cmd->data.setdelmac.mac[0];
6146 if (cmd->hdr.return_code)
6147 PRINT_ERR("Could not delete group MAC " \
6148 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6149 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6150 QETH_CARD_IFNAME(card), cmd->hdr.return_code);
6151 return 0;
6152 }
6153
6154 static int
6155 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
6156 {
6157 QETH_DBF_TEXT(trace, 2, "L2Dgmac");
6158 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
6159 qeth_layer2_send_delgroupmac_cb);
6160 }
6161
6162 static int
6163 qeth_layer2_send_setmac_cb(struct qeth_card *card,
6164 struct qeth_reply *reply,
6165 unsigned long data)
6166 {
6167 struct qeth_ipa_cmd *cmd;
6168
6169 QETH_DBF_TEXT(trace, 2, "L2Smaccb");
6170 cmd = (struct qeth_ipa_cmd *) data;
6171 if (cmd->hdr.return_code) {
6172 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
6173 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6174 cmd->hdr.return_code = -EIO;
6175 } else {
6176 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
6177 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
6178 OSA_ADDR_LEN);
6179 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
6180 "successfully registered on device %s\n",
6181 card->dev->dev_addr[0], card->dev->dev_addr[1],
6182 card->dev->dev_addr[2], card->dev->dev_addr[3],
6183 card->dev->dev_addr[4], card->dev->dev_addr[5],
6184 card->dev->name);
6185 }
6186 return 0;
6187 }
6188
6189 static int
6190 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
6191 {
6192 QETH_DBF_TEXT(trace, 2, "L2Setmac");
6193 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
6194 qeth_layer2_send_setmac_cb);
6195 }
6196
6197 static int
6198 qeth_layer2_send_delmac_cb(struct qeth_card *card,
6199 struct qeth_reply *reply,
6200 unsigned long data)
6201 {
6202 struct qeth_ipa_cmd *cmd;
6203
6204 QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6205 cmd = (struct qeth_ipa_cmd *) data;
6206 if (cmd->hdr.return_code) {
6207 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6208 cmd->hdr.return_code = -EIO;
6209 return 0;
6210 }
6211 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6212
6213 return 0;
6214 }
6215 static int
6216 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6217 {
6218 QETH_DBF_TEXT(trace, 2, "L2Delmac");
6219 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6220 return 0;
6221 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6222 qeth_layer2_send_delmac_cb);
6223 }
6224
6225 static int
6226 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6227 {
6228 struct sockaddr *addr = p;
6229 struct qeth_card *card;
6230 int rc = 0;
6231
6232 QETH_DBF_TEXT(trace, 3, "setmac");
6233
6234 if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6235 QETH_DBF_TEXT(trace, 3, "setmcINV");
6236 return -EOPNOTSUPP;
6237 }
6238 card = (struct qeth_card *) dev->priv;
6239
6240 if (!card->options.layer2) {
6241 PRINT_WARN("Setting MAC address on %s is not supported "
6242 "in Layer 3 mode.\n", dev->name);
6243 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6244 return -EOPNOTSUPP;
6245 }
6246 if (card->info.type == QETH_CARD_TYPE_OSN) {
6247 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6248 dev->name);
6249 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6250 return -EOPNOTSUPP;
6251 }
6252 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6253 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6254 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6255 if (!rc)
6256 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6257 return rc;
6258 }
6259
6260 static void
6261 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6262 __u8 command, enum qeth_prot_versions prot)
6263 {
6264 memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6265 cmd->hdr.command = command;
6266 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6267 cmd->hdr.seqno = card->seqno.ipa;
6268 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6269 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6270 if (card->options.layer2)
6271 cmd->hdr.prim_version_no = 2;
6272 else
6273 cmd->hdr.prim_version_no = 1;
6274 cmd->hdr.param_count = 1;
6275 cmd->hdr.prot_version = prot;
6276 cmd->hdr.ipa_supported = 0;
6277 cmd->hdr.ipa_enabled = 0;
6278 }
6279
6280 static struct qeth_cmd_buffer *
6281 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6282 enum qeth_prot_versions prot)
6283 {
6284 struct qeth_cmd_buffer *iob;
6285 struct qeth_ipa_cmd *cmd;
6286
6287 iob = qeth_wait_for_buffer(&card->write);
6288 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6289 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6290
6291 return iob;
6292 }
6293
6294 static int
6295 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6296 {
6297 int rc;
6298 struct qeth_cmd_buffer *iob;
6299 struct qeth_ipa_cmd *cmd;
6300
6301 QETH_DBF_TEXT(trace,4,"setdelmc");
6302
6303 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6304 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6305 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6306 if (addr->proto == QETH_PROT_IPV6)
6307 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6308 sizeof(struct in6_addr));
6309 else
6310 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6311
6312 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6313
6314 return rc;
6315 }
6316 static void
6317 qeth_fill_netmask(u8 *netmask, unsigned int len)
6318 {
6319 int i,j;
6320 for (i=0;i<16;i++) {
6321 j=(len)-(i*8);
6322 if (j >= 8)
6323 netmask[i] = 0xff;
6324 else if (j > 0)
6325 netmask[i] = (u8)(0xFF00>>j);
6326 else
6327 netmask[i] = 0;
6328 }
6329 }
6330
6331 static int
6332 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6333 int ipacmd, unsigned int flags)
6334 {
6335 int rc;
6336 struct qeth_cmd_buffer *iob;
6337 struct qeth_ipa_cmd *cmd;
6338 __u8 netmask[16];
6339
6340 QETH_DBF_TEXT(trace,4,"setdelip");
6341 QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6342
6343 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6344 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6345 if (addr->proto == QETH_PROT_IPV6) {
6346 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6347 sizeof(struct in6_addr));
6348 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6349 memcpy(cmd->data.setdelip6.mask, netmask,
6350 sizeof(struct in6_addr));
6351 cmd->data.setdelip6.flags = flags;
6352 } else {
6353 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6354 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6355 cmd->data.setdelip4.flags = flags;
6356 }
6357
6358 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6359
6360 return rc;
6361 }
6362
6363 static int
6364 qeth_layer2_register_addr_entry(struct qeth_card *card,
6365 struct qeth_ipaddr *addr)
6366 {
6367 if (!addr->is_multicast)
6368 return 0;
6369 QETH_DBF_TEXT(trace, 2, "setgmac");
6370 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6371 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6372 }
6373
6374 static int
6375 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6376 struct qeth_ipaddr *addr)
6377 {
6378 if (!addr->is_multicast)
6379 return 0;
6380 QETH_DBF_TEXT(trace, 2, "delgmac");
6381 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6382 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6383 }
6384
6385 static int
6386 qeth_layer3_register_addr_entry(struct qeth_card *card,
6387 struct qeth_ipaddr *addr)
6388 {
6389 char buf[50];
6390 int rc;
6391 int cnt = 3;
6392
6393 if (addr->proto == QETH_PROT_IPV4) {
6394 QETH_DBF_TEXT(trace, 2,"setaddr4");
6395 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6396 } else if (addr->proto == QETH_PROT_IPV6) {
6397 QETH_DBF_TEXT(trace, 2, "setaddr6");
6398 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6399 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6400 } else {
6401 QETH_DBF_TEXT(trace, 2, "setaddr?");
6402 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6403 }
6404 do {
6405 if (addr->is_multicast)
6406 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6407 else
6408 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6409 addr->set_flags);
6410 if (rc)
6411 QETH_DBF_TEXT(trace, 2, "failed");
6412 } while ((--cnt > 0) && rc);
6413 if (rc){
6414 QETH_DBF_TEXT(trace, 2, "FAILED");
6415 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6416 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6417 buf, rc, rc);
6418 }
6419 return rc;
6420 }
6421
6422 static int
6423 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6424 struct qeth_ipaddr *addr)
6425 {
6426 //char buf[50];
6427 int rc;
6428
6429 if (addr->proto == QETH_PROT_IPV4) {
6430 QETH_DBF_TEXT(trace, 2,"deladdr4");
6431 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6432 } else if (addr->proto == QETH_PROT_IPV6) {
6433 QETH_DBF_TEXT(trace, 2, "deladdr6");
6434 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6435 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6436 } else {
6437 QETH_DBF_TEXT(trace, 2, "deladdr?");
6438 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6439 }
6440 if (addr->is_multicast)
6441 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6442 else
6443 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6444 addr->del_flags);
6445 if (rc) {
6446 QETH_DBF_TEXT(trace, 2, "failed");
6447 /* TODO: re-activate this warning as soon as we have a
6448 * clean mirco code
6449 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6450 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6451 buf, rc);
6452 */
6453 }
6454 return rc;
6455 }
6456
6457 static int
6458 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6459 {
6460 if (card->options.layer2)
6461 return qeth_layer2_register_addr_entry(card, addr);
6462
6463 return qeth_layer3_register_addr_entry(card, addr);
6464 }
6465
6466 static int
6467 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6468 {
6469 if (card->options.layer2)
6470 return qeth_layer2_deregister_addr_entry(card, addr);
6471
6472 return qeth_layer3_deregister_addr_entry(card, addr);
6473 }
6474
6475 static u32
6476 qeth_ethtool_get_tx_csum(struct net_device *dev)
6477 {
6478 return (dev->features & NETIF_F_HW_CSUM) != 0;
6479 }
6480
6481 static int
6482 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6483 {
6484 if (data)
6485 dev->features |= NETIF_F_HW_CSUM;
6486 else
6487 dev->features &= ~NETIF_F_HW_CSUM;
6488
6489 return 0;
6490 }
6491
6492 static u32
6493 qeth_ethtool_get_rx_csum(struct net_device *dev)
6494 {
6495 struct qeth_card *card = (struct qeth_card *)dev->priv;
6496
6497 return (card->options.checksum_type == HW_CHECKSUMMING);
6498 }
6499
6500 static int
6501 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6502 {
6503 struct qeth_card *card = (struct qeth_card *)dev->priv;
6504
6505 if ((card->state != CARD_STATE_DOWN) &&
6506 (card->state != CARD_STATE_RECOVER))
6507 return -EPERM;
6508 if (data)
6509 card->options.checksum_type = HW_CHECKSUMMING;
6510 else
6511 card->options.checksum_type = SW_CHECKSUMMING;
6512 return 0;
6513 }
6514
6515 static u32
6516 qeth_ethtool_get_sg(struct net_device *dev)
6517 {
6518 struct qeth_card *card = (struct qeth_card *)dev->priv;
6519
6520 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6521 (dev->features & NETIF_F_SG));
6522 }
6523
6524 static int
6525 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6526 {
6527 struct qeth_card *card = (struct qeth_card *)dev->priv;
6528
6529 if (data) {
6530 if (card->options.large_send != QETH_LARGE_SEND_NO)
6531 dev->features |= NETIF_F_SG;
6532 else {
6533 dev->features &= ~NETIF_F_SG;
6534 return -EINVAL;
6535 }
6536 } else
6537 dev->features &= ~NETIF_F_SG;
6538 return 0;
6539 }
6540
6541 static u32
6542 qeth_ethtool_get_tso(struct net_device *dev)
6543 {
6544 struct qeth_card *card = (struct qeth_card *)dev->priv;
6545
6546 return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6547 (dev->features & NETIF_F_TSO));
6548 }
6549
6550 static int
6551 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6552 {
6553 struct qeth_card *card = (struct qeth_card *)dev->priv;
6554
6555 if (data) {
6556 if (card->options.large_send != QETH_LARGE_SEND_NO)
6557 dev->features |= NETIF_F_TSO;
6558 else {
6559 dev->features &= ~NETIF_F_TSO;
6560 return -EINVAL;
6561 }
6562 } else
6563 dev->features &= ~NETIF_F_TSO;
6564 return 0;
6565 }
6566
6567 static struct ethtool_ops qeth_ethtool_ops = {
6568 .get_tx_csum = qeth_ethtool_get_tx_csum,
6569 .set_tx_csum = qeth_ethtool_set_tx_csum,
6570 .get_rx_csum = qeth_ethtool_get_rx_csum,
6571 .set_rx_csum = qeth_ethtool_set_rx_csum,
6572 .get_sg = qeth_ethtool_get_sg,
6573 .set_sg = qeth_ethtool_set_sg,
6574 .get_tso = qeth_ethtool_get_tso,
6575 .set_tso = qeth_ethtool_set_tso,
6576 };
6577
6578 static int
6579 qeth_hard_header_parse(const struct sk_buff *skb, unsigned char *haddr)
6580 {
6581 const struct qeth_card *card;
6582 const struct ethhdr *eth;
6583 struct net_device *dev = skb->dev;
6584
6585 if (dev->type != ARPHRD_IEEE802_TR)
6586 return 0;
6587
6588 card = qeth_get_card_from_dev(dev);
6589 if (card->options.layer2)
6590 goto haveheader;
6591 #ifdef CONFIG_QETH_IPV6
6592 /* cause of the manipulated arp constructor and the ARP
6593 flag for OSAE devices we have some nasty exceptions */
6594 if (card->info.type == QETH_CARD_TYPE_OSAE) {
6595 if (!card->options.fake_ll) {
6596 if ((skb->pkt_type==PACKET_OUTGOING) &&
6597 (skb->protocol==ETH_P_IPV6))
6598 goto haveheader;
6599 else
6600 return 0;
6601 } else {
6602 if ((skb->pkt_type==PACKET_OUTGOING) &&
6603 (skb->protocol==ETH_P_IP))
6604 return 0;
6605 else
6606 goto haveheader;
6607 }
6608 }
6609 #endif
6610 if (!card->options.fake_ll)
6611 return 0;
6612 haveheader:
6613 eth = eth_hdr(skb);
6614 memcpy(haddr, eth->h_source, ETH_ALEN);
6615 return ETH_ALEN;
6616 }
6617
6618 static const struct header_ops qeth_null_ops = {
6619 .parse = qeth_hard_header_parse,
6620 };
6621
6622 static int
6623 qeth_netdev_init(struct net_device *dev)
6624 {
6625 struct qeth_card *card;
6626
6627 card = (struct qeth_card *) dev->priv;
6628
6629 QETH_DBF_TEXT(trace,3,"initdev");
6630
6631 dev->tx_timeout = &qeth_tx_timeout;
6632 dev->watchdog_timeo = QETH_TX_TIMEOUT;
6633 dev->open = qeth_open;
6634 dev->stop = qeth_stop;
6635 dev->hard_start_xmit = qeth_hard_start_xmit;
6636 dev->do_ioctl = qeth_do_ioctl;
6637 dev->get_stats = qeth_get_stats;
6638 dev->change_mtu = qeth_change_mtu;
6639 dev->neigh_setup = qeth_neigh_setup;
6640 dev->set_multicast_list = qeth_set_multicast_list;
6641 #ifdef CONFIG_QETH_VLAN
6642 dev->vlan_rx_register = qeth_vlan_rx_register;
6643 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6644 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6645 #endif
6646 if (qeth_get_netdev_flags(card) & IFF_NOARP)
6647 dev->header_ops = &qeth_null_ops;
6648
6649 #ifdef CONFIG_QETH_IPV6
6650 /*IPv6 address autoconfiguration stuff*/
6651 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6652 card->dev->dev_id = card->info.unique_id & 0xffff;
6653 #endif
6654 if (card->options.fake_ll &&
6655 (qeth_get_netdev_flags(card) & IFF_NOARP))
6656 dev->header_ops = &qeth_fake_ops;
6657
6658 dev->set_mac_address = qeth_layer2_set_mac_address;
6659 dev->flags |= qeth_get_netdev_flags(card);
6660 if ((card->options.fake_broadcast) ||
6661 (card->info.broadcast_capable))
6662 dev->flags |= IFF_BROADCAST;
6663 dev->hard_header_len =
6664 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6665 dev->addr_len = OSA_ADDR_LEN;
6666 dev->mtu = card->info.initial_mtu;
6667 if (card->info.type != QETH_CARD_TYPE_OSN)
6668 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6669 return 0;
6670 }
6671
6672 static void
6673 qeth_init_func_level(struct qeth_card *card)
6674 {
6675 if (card->ipato.enabled) {
6676 if (card->info.type == QETH_CARD_TYPE_IQD)
6677 card->info.func_level =
6678 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6679 else
6680 card->info.func_level =
6681 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6682 } else {
6683 if (card->info.type == QETH_CARD_TYPE_IQD)
6684 /*FIXME:why do we have same values for dis and ena for osae??? */
6685 card->info.func_level =
6686 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6687 else
6688 card->info.func_level =
6689 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6690 }
6691 }
6692
6693 /**
6694 * hardsetup card, initialize MPC and QDIO stuff
6695 */
6696 static int
6697 qeth_hardsetup_card(struct qeth_card *card)
6698 {
6699 int retries = 3;
6700 int rc;
6701
6702 QETH_DBF_TEXT(setup, 2, "hrdsetup");
6703
6704 atomic_set(&card->force_alloc_skb, 0);
6705 retry:
6706 if (retries < 3){
6707 PRINT_WARN("Retrying to do IDX activates.\n");
6708 ccw_device_set_offline(CARD_DDEV(card));
6709 ccw_device_set_offline(CARD_WDEV(card));
6710 ccw_device_set_offline(CARD_RDEV(card));
6711 ccw_device_set_online(CARD_RDEV(card));
6712 ccw_device_set_online(CARD_WDEV(card));
6713 ccw_device_set_online(CARD_DDEV(card));
6714 }
6715 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6716 if (rc == -ERESTARTSYS) {
6717 QETH_DBF_TEXT(setup, 2, "break1");
6718 return rc;
6719 } else if (rc) {
6720 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6721 if (--retries < 0)
6722 goto out;
6723 else
6724 goto retry;
6725 }
6726 if ((rc = qeth_get_unitaddr(card))){
6727 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6728 return rc;
6729 }
6730 qeth_init_tokens(card);
6731 qeth_init_func_level(card);
6732 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6733 if (rc == -ERESTARTSYS) {
6734 QETH_DBF_TEXT(setup, 2, "break2");
6735 return rc;
6736 } else if (rc) {
6737 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6738 if (--retries < 0)
6739 goto out;
6740 else
6741 goto retry;
6742 }
6743 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6744 if (rc == -ERESTARTSYS) {
6745 QETH_DBF_TEXT(setup, 2, "break3");
6746 return rc;
6747 } else if (rc) {
6748 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6749 if (--retries < 0)
6750 goto out;
6751 else
6752 goto retry;
6753 }
6754 if ((rc = qeth_mpc_initialize(card))){
6755 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6756 goto out;
6757 }
6758 /*network device will be recovered*/
6759 if (card->dev) {
6760 card->dev->header_ops = card->orig_header_ops;
6761 if (card->options.fake_ll &&
6762 (qeth_get_netdev_flags(card) & IFF_NOARP))
6763 card->dev->header_ops = &qeth_fake_ops;
6764 return 0;
6765 }
6766 /* at first set_online allocate netdev */
6767 card->dev = qeth_get_netdevice(card->info.type,
6768 card->info.link_type);
6769 if (!card->dev){
6770 qeth_qdio_clear_card(card, card->info.type !=
6771 QETH_CARD_TYPE_IQD);
6772 rc = -ENODEV;
6773 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6774 goto out;
6775 }
6776 card->dev->priv = card;
6777 card->orig_header_ops = card->dev->header_ops;
6778 card->dev->type = qeth_get_arphdr_type(card->info.type,
6779 card->info.link_type);
6780 card->dev->init = qeth_netdev_init;
6781 return 0;
6782 out:
6783 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6784 return rc;
6785 }
6786
6787 static int
6788 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6789 unsigned long data)
6790 {
6791 struct qeth_ipa_cmd *cmd;
6792
6793 QETH_DBF_TEXT(trace,4,"defadpcb");
6794
6795 cmd = (struct qeth_ipa_cmd *) data;
6796 if (cmd->hdr.return_code == 0){
6797 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6798 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6799 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6800 #ifdef CONFIG_QETH_IPV6
6801 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6802 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6803 #endif
6804 }
6805 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6806 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6807 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6808 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6809 }
6810 return 0;
6811 }
6812
6813 static int
6814 qeth_default_setadapterparms_cb(struct qeth_card *card,
6815 struct qeth_reply *reply,
6816 unsigned long data)
6817 {
6818 struct qeth_ipa_cmd *cmd;
6819
6820 QETH_DBF_TEXT(trace,4,"defadpcb");
6821
6822 cmd = (struct qeth_ipa_cmd *) data;
6823 if (cmd->hdr.return_code == 0)
6824 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6825 return 0;
6826 }
6827
6828
6829
6830 static int
6831 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6832 unsigned long data)
6833 {
6834 struct qeth_ipa_cmd *cmd;
6835
6836 QETH_DBF_TEXT(trace,3,"quyadpcb");
6837
6838 cmd = (struct qeth_ipa_cmd *) data;
6839 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6840 card->info.link_type =
6841 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6842 card->options.adp.supported_funcs =
6843 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6844 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6845 }
6846
6847 static int
6848 qeth_query_setadapterparms(struct qeth_card *card)
6849 {
6850 int rc;
6851 struct qeth_cmd_buffer *iob;
6852
6853 QETH_DBF_TEXT(trace,3,"queryadp");
6854 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6855 sizeof(struct qeth_ipacmd_setadpparms));
6856 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6857 return rc;
6858 }
6859
6860 static int
6861 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6862 struct qeth_reply *reply,
6863 unsigned long data)
6864 {
6865 struct qeth_ipa_cmd *cmd;
6866
6867 QETH_DBF_TEXT(trace,4,"chgmaccb");
6868
6869 cmd = (struct qeth_ipa_cmd *) data;
6870 if (!card->options.layer2 ||
6871 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6872 memcpy(card->dev->dev_addr,
6873 &cmd->data.setadapterparms.data.change_addr.addr,
6874 OSA_ADDR_LEN);
6875 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6876 }
6877 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6878 return 0;
6879 }
6880
6881 static int
6882 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6883 {
6884 int rc;
6885 struct qeth_cmd_buffer *iob;
6886 struct qeth_ipa_cmd *cmd;
6887
6888 QETH_DBF_TEXT(trace,4,"chgmac");
6889
6890 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6891 sizeof(struct qeth_ipacmd_setadpparms));
6892 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6893 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6894 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6895 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6896 card->dev->dev_addr, OSA_ADDR_LEN);
6897 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6898 NULL);
6899 return rc;
6900 }
6901
6902 static int
6903 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6904 {
6905 int rc;
6906 struct qeth_cmd_buffer *iob;
6907 struct qeth_ipa_cmd *cmd;
6908
6909 QETH_DBF_TEXT(trace,4,"adpmode");
6910
6911 iob = qeth_get_adapter_cmd(card, command,
6912 sizeof(struct qeth_ipacmd_setadpparms));
6913 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6914 cmd->data.setadapterparms.data.mode = mode;
6915 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6916 NULL);
6917 return rc;
6918 }
6919
6920 static int
6921 qeth_setadapter_hstr(struct qeth_card *card)
6922 {
6923 int rc;
6924
6925 QETH_DBF_TEXT(trace,4,"adphstr");
6926
6927 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6928 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6929 card->options.broadcast_mode);
6930 if (rc)
6931 PRINT_WARN("couldn't set broadcast mode on "
6932 "device %s: x%x\n",
6933 CARD_BUS_ID(card), rc);
6934 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6935 card->options.macaddr_mode);
6936 if (rc)
6937 PRINT_WARN("couldn't set macaddr mode on "
6938 "device %s: x%x\n", CARD_BUS_ID(card), rc);
6939 return rc;
6940 }
6941 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6942 PRINT_WARN("set adapter parameters not available "
6943 "to set broadcast mode, using ALLRINGS "
6944 "on device %s:\n", CARD_BUS_ID(card));
6945 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6946 PRINT_WARN("set adapter parameters not available "
6947 "to set macaddr mode, using NONCANONICAL "
6948 "on device %s:\n", CARD_BUS_ID(card));
6949 return 0;
6950 }
6951
6952 static int
6953 qeth_setadapter_parms(struct qeth_card *card)
6954 {
6955 int rc;
6956
6957 QETH_DBF_TEXT(setup, 2, "setadprm");
6958
6959 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6960 PRINT_WARN("set adapter parameters not supported "
6961 "on device %s.\n",
6962 CARD_BUS_ID(card));
6963 QETH_DBF_TEXT(setup, 2, " notsupp");
6964 return 0;
6965 }
6966 rc = qeth_query_setadapterparms(card);
6967 if (rc) {
6968 PRINT_WARN("couldn't set adapter parameters on device %s: "
6969 "x%x\n", CARD_BUS_ID(card), rc);
6970 return rc;
6971 }
6972 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6973 rc = qeth_setadpparms_change_macaddr(card);
6974 if (rc)
6975 PRINT_WARN("couldn't get MAC address on "
6976 "device %s: x%x\n",
6977 CARD_BUS_ID(card), rc);
6978 }
6979
6980 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6981 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6982 rc = qeth_setadapter_hstr(card);
6983
6984 return rc;
6985 }
6986
6987 static int
6988 qeth_layer2_initialize(struct qeth_card *card)
6989 {
6990 int rc = 0;
6991
6992
6993 QETH_DBF_TEXT(setup, 2, "doL2init");
6994 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6995
6996 rc = qeth_query_setadapterparms(card);
6997 if (rc) {
6998 PRINT_WARN("could not query adapter parameters on device %s: "
6999 "x%x\n", CARD_BUS_ID(card), rc);
7000 }
7001
7002 rc = qeth_setadpparms_change_macaddr(card);
7003 if (rc) {
7004 PRINT_WARN("couldn't get MAC address on "
7005 "device %s: x%x\n",
7006 CARD_BUS_ID(card), rc);
7007 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
7008 return rc;
7009 }
7010 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
7011
7012 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
7013 if (rc)
7014 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
7015 return 0;
7016 }
7017
7018
7019 static int
7020 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
7021 enum qeth_prot_versions prot)
7022 {
7023 int rc;
7024 struct qeth_cmd_buffer *iob;
7025
7026 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
7027 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7028
7029 return rc;
7030 }
7031
7032 static int
7033 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
7034 {
7035 int rc;
7036
7037 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
7038
7039 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
7040 return rc;
7041 }
7042
7043 static int
7044 qeth_send_stoplan(struct qeth_card *card)
7045 {
7046 int rc = 0;
7047
7048 /*
7049 * TODO: according to the IPA format document page 14,
7050 * TCP/IP (we!) never issue a STOPLAN
7051 * is this right ?!?
7052 */
7053 QETH_DBF_TEXT(trace, 2, "stoplan");
7054
7055 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
7056 return rc;
7057 }
7058
7059 static int
7060 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
7061 unsigned long data)
7062 {
7063 struct qeth_ipa_cmd *cmd;
7064
7065 QETH_DBF_TEXT(setup, 2, "qipasscb");
7066
7067 cmd = (struct qeth_ipa_cmd *) data;
7068 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
7069 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
7070 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
7071 /* Disable IPV6 support hard coded for Hipersockets */
7072 if(card->info.type == QETH_CARD_TYPE_IQD)
7073 card->options.ipa4.supported_funcs &= ~IPA_IPV6;
7074 } else {
7075 #ifdef CONFIG_QETH_IPV6
7076 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
7077 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
7078 #endif
7079 }
7080 QETH_DBF_TEXT(setup, 2, "suppenbl");
7081 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
7082 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
7083 return 0;
7084 }
7085
7086 static int
7087 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
7088 {
7089 int rc;
7090 struct qeth_cmd_buffer *iob;
7091
7092 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
7093 if (card->options.layer2) {
7094 QETH_DBF_TEXT(setup, 2, "noprmly2");
7095 return -EPERM;
7096 }
7097
7098 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
7099 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
7100 return rc;
7101 }
7102
7103 static struct qeth_cmd_buffer *
7104 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
7105 __u16 cmd_code, __u16 len,
7106 enum qeth_prot_versions prot)
7107 {
7108 struct qeth_cmd_buffer *iob;
7109 struct qeth_ipa_cmd *cmd;
7110
7111 QETH_DBF_TEXT(trace,4,"getasscm");
7112 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
7113
7114 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7115 cmd->data.setassparms.hdr.assist_no = ipa_func;
7116 cmd->data.setassparms.hdr.length = 8 + len;
7117 cmd->data.setassparms.hdr.command_code = cmd_code;
7118 cmd->data.setassparms.hdr.return_code = 0;
7119 cmd->data.setassparms.hdr.seq_no = 0;
7120
7121 return iob;
7122 }
7123
7124 static int
7125 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
7126 __u16 len, long data,
7127 int (*reply_cb)
7128 (struct qeth_card *,struct qeth_reply *,unsigned long),
7129 void *reply_param)
7130 {
7131 int rc;
7132 struct qeth_ipa_cmd *cmd;
7133
7134 QETH_DBF_TEXT(trace,4,"sendassp");
7135
7136 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7137 if (len <= sizeof(__u32))
7138 cmd->data.setassparms.data.flags_32bit = (__u32) data;
7139 else /* (len > sizeof(__u32)) */
7140 memcpy(&cmd->data.setassparms.data, (void *) data, len);
7141
7142 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
7143 return rc;
7144 }
7145
7146 #ifdef CONFIG_QETH_IPV6
7147 static int
7148 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
7149 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
7150
7151 {
7152 int rc;
7153 struct qeth_cmd_buffer *iob;
7154
7155 QETH_DBF_TEXT(trace,4,"simassp6");
7156 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7157 0, QETH_PROT_IPV6);
7158 rc = qeth_send_setassparms(card, iob, 0, 0,
7159 qeth_default_setassparms_cb, NULL);
7160 return rc;
7161 }
7162 #endif
7163
7164 static int
7165 qeth_send_simple_setassparms(struct qeth_card *card,
7166 enum qeth_ipa_funcs ipa_func,
7167 __u16 cmd_code, long data)
7168 {
7169 int rc;
7170 int length = 0;
7171 struct qeth_cmd_buffer *iob;
7172
7173 QETH_DBF_TEXT(trace,4,"simassp4");
7174 if (data)
7175 length = sizeof(__u32);
7176 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7177 length, QETH_PROT_IPV4);
7178 rc = qeth_send_setassparms(card, iob, length, data,
7179 qeth_default_setassparms_cb, NULL);
7180 return rc;
7181 }
7182
7183 static int
7184 qeth_start_ipa_arp_processing(struct qeth_card *card)
7185 {
7186 int rc;
7187
7188 QETH_DBF_TEXT(trace,3,"ipaarp");
7189
7190 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
7191 PRINT_WARN("ARP processing not supported "
7192 "on %s!\n", QETH_CARD_IFNAME(card));
7193 return 0;
7194 }
7195 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
7196 IPA_CMD_ASS_START, 0);
7197 if (rc) {
7198 PRINT_WARN("Could not start ARP processing "
7199 "assist on %s: 0x%x\n",
7200 QETH_CARD_IFNAME(card), rc);
7201 }
7202 return rc;
7203 }
7204
7205 static int
7206 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
7207 {
7208 int rc;
7209
7210 QETH_DBF_TEXT(trace,3,"ipaipfrg");
7211
7212 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
7213 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
7214 QETH_CARD_IFNAME(card));
7215 return -EOPNOTSUPP;
7216 }
7217
7218 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
7219 IPA_CMD_ASS_START, 0);
7220 if (rc) {
7221 PRINT_WARN("Could not start Hardware IP fragmentation "
7222 "assist on %s: 0x%x\n",
7223 QETH_CARD_IFNAME(card), rc);
7224 } else
7225 PRINT_INFO("Hardware IP fragmentation enabled \n");
7226 return rc;
7227 }
7228
7229 static int
7230 qeth_start_ipa_source_mac(struct qeth_card *card)
7231 {
7232 int rc;
7233
7234 QETH_DBF_TEXT(trace,3,"stsrcmac");
7235
7236 if (!card->options.fake_ll)
7237 return -EOPNOTSUPP;
7238
7239 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7240 PRINT_INFO("Inbound source address not "
7241 "supported on %s\n", QETH_CARD_IFNAME(card));
7242 return -EOPNOTSUPP;
7243 }
7244
7245 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7246 IPA_CMD_ASS_START, 0);
7247 if (rc)
7248 PRINT_WARN("Could not start inbound source "
7249 "assist on %s: 0x%x\n",
7250 QETH_CARD_IFNAME(card), rc);
7251 return rc;
7252 }
7253
7254 static int
7255 qeth_start_ipa_vlan(struct qeth_card *card)
7256 {
7257 int rc = 0;
7258
7259 QETH_DBF_TEXT(trace,3,"strtvlan");
7260
7261 #ifdef CONFIG_QETH_VLAN
7262 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7263 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7264 return -EOPNOTSUPP;
7265 }
7266
7267 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7268 IPA_CMD_ASS_START,0);
7269 if (rc) {
7270 PRINT_WARN("Could not start vlan "
7271 "assist on %s: 0x%x\n",
7272 QETH_CARD_IFNAME(card), rc);
7273 } else {
7274 PRINT_INFO("VLAN enabled \n");
7275 card->dev->features |=
7276 NETIF_F_HW_VLAN_FILTER |
7277 NETIF_F_HW_VLAN_TX |
7278 NETIF_F_HW_VLAN_RX;
7279 }
7280 #endif /* QETH_VLAN */
7281 return rc;
7282 }
7283
7284 static int
7285 qeth_start_ipa_multicast(struct qeth_card *card)
7286 {
7287 int rc;
7288
7289 QETH_DBF_TEXT(trace,3,"stmcast");
7290
7291 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7292 PRINT_WARN("Multicast not supported on %s\n",
7293 QETH_CARD_IFNAME(card));
7294 return -EOPNOTSUPP;
7295 }
7296
7297 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7298 IPA_CMD_ASS_START,0);
7299 if (rc) {
7300 PRINT_WARN("Could not start multicast "
7301 "assist on %s: rc=%i\n",
7302 QETH_CARD_IFNAME(card), rc);
7303 } else {
7304 PRINT_INFO("Multicast enabled\n");
7305 card->dev->flags |= IFF_MULTICAST;
7306 }
7307 return rc;
7308 }
7309
7310 #ifdef CONFIG_QETH_IPV6
7311 static int
7312 qeth_softsetup_ipv6(struct qeth_card *card)
7313 {
7314 int rc;
7315
7316 QETH_DBF_TEXT(trace,3,"softipv6");
7317
7318 rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7319 if (rc) {
7320 PRINT_ERR("IPv6 startlan failed on %s\n",
7321 QETH_CARD_IFNAME(card));
7322 return rc;
7323 }
7324 rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7325 if (rc) {
7326 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7327 QETH_CARD_IFNAME(card));
7328 return rc;
7329 }
7330 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7331 IPA_CMD_ASS_START, 3);
7332 if (rc) {
7333 PRINT_WARN("IPv6 start assist (version 4) failed "
7334 "on %s: 0x%x\n",
7335 QETH_CARD_IFNAME(card), rc);
7336 return rc;
7337 }
7338 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7339 IPA_CMD_ASS_START);
7340 if (rc) {
7341 PRINT_WARN("IPV6 start assist (version 6) failed "
7342 "on %s: 0x%x\n",
7343 QETH_CARD_IFNAME(card), rc);
7344 return rc;
7345 }
7346 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7347 IPA_CMD_ASS_START);
7348 if (rc) {
7349 PRINT_WARN("Could not enable passthrough "
7350 "on %s: 0x%x\n",
7351 QETH_CARD_IFNAME(card), rc);
7352 return rc;
7353 }
7354 PRINT_INFO("IPV6 enabled \n");
7355 return 0;
7356 }
7357
7358 #endif
7359
7360 static int
7361 qeth_start_ipa_ipv6(struct qeth_card *card)
7362 {
7363 int rc = 0;
7364 #ifdef CONFIG_QETH_IPV6
7365 QETH_DBF_TEXT(trace,3,"strtipv6");
7366
7367 if (!qeth_is_supported(card, IPA_IPV6)) {
7368 PRINT_WARN("IPv6 not supported on %s\n",
7369 QETH_CARD_IFNAME(card));
7370 return 0;
7371 }
7372 rc = qeth_softsetup_ipv6(card);
7373 #endif
7374 return rc ;
7375 }
7376
7377 static int
7378 qeth_start_ipa_broadcast(struct qeth_card *card)
7379 {
7380 int rc;
7381
7382 QETH_DBF_TEXT(trace,3,"stbrdcst");
7383 card->info.broadcast_capable = 0;
7384 if (!qeth_is_supported(card, IPA_FILTERING)) {
7385 PRINT_WARN("Broadcast not supported on %s\n",
7386 QETH_CARD_IFNAME(card));
7387 rc = -EOPNOTSUPP;
7388 goto out;
7389 }
7390 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7391 IPA_CMD_ASS_START, 0);
7392 if (rc) {
7393 PRINT_WARN("Could not enable broadcasting filtering "
7394 "on %s: 0x%x\n",
7395 QETH_CARD_IFNAME(card), rc);
7396 goto out;
7397 }
7398
7399 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7400 IPA_CMD_ASS_CONFIGURE, 1);
7401 if (rc) {
7402 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7403 QETH_CARD_IFNAME(card), rc);
7404 goto out;
7405 }
7406 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7407 PRINT_INFO("Broadcast enabled \n");
7408 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7409 IPA_CMD_ASS_ENABLE, 1);
7410 if (rc) {
7411 PRINT_WARN("Could not set up broadcast echo filtering on "
7412 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7413 goto out;
7414 }
7415 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7416 out:
7417 if (card->info.broadcast_capable)
7418 card->dev->flags |= IFF_BROADCAST;
7419 else
7420 card->dev->flags &= ~IFF_BROADCAST;
7421 return rc;
7422 }
7423
7424 static int
7425 qeth_send_checksum_command(struct qeth_card *card)
7426 {
7427 int rc;
7428
7429 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7430 IPA_CMD_ASS_START, 0);
7431 if (rc) {
7432 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7433 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7434 QETH_CARD_IFNAME(card), rc);
7435 return rc;
7436 }
7437 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7438 IPA_CMD_ASS_ENABLE,
7439 card->info.csum_mask);
7440 if (rc) {
7441 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7442 "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7443 QETH_CARD_IFNAME(card), rc);
7444 return rc;
7445 }
7446 return 0;
7447 }
7448
7449 static int
7450 qeth_start_ipa_checksum(struct qeth_card *card)
7451 {
7452 int rc = 0;
7453
7454 QETH_DBF_TEXT(trace,3,"strtcsum");
7455
7456 if (card->options.checksum_type == NO_CHECKSUMMING) {
7457 PRINT_WARN("Using no checksumming on %s.\n",
7458 QETH_CARD_IFNAME(card));
7459 return 0;
7460 }
7461 if (card->options.checksum_type == SW_CHECKSUMMING) {
7462 PRINT_WARN("Using SW checksumming on %s.\n",
7463 QETH_CARD_IFNAME(card));
7464 return 0;
7465 }
7466 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7467 PRINT_WARN("Inbound HW Checksumming not "
7468 "supported on %s,\ncontinuing "
7469 "using Inbound SW Checksumming\n",
7470 QETH_CARD_IFNAME(card));
7471 card->options.checksum_type = SW_CHECKSUMMING;
7472 return 0;
7473 }
7474 rc = qeth_send_checksum_command(card);
7475 if (!rc) {
7476 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7477 }
7478 return rc;
7479 }
7480
7481 static int
7482 qeth_start_ipa_tso(struct qeth_card *card)
7483 {
7484 int rc;
7485
7486 QETH_DBF_TEXT(trace,3,"sttso");
7487
7488 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7489 PRINT_WARN("Outbound TSO not supported on %s\n",
7490 QETH_CARD_IFNAME(card));
7491 rc = -EOPNOTSUPP;
7492 } else {
7493 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7494 IPA_CMD_ASS_START,0);
7495 if (rc)
7496 PRINT_WARN("Could not start outbound TSO "
7497 "assist on %s: rc=%i\n",
7498 QETH_CARD_IFNAME(card), rc);
7499 else
7500 PRINT_INFO("Outbound TSO enabled\n");
7501 }
7502 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7503 card->options.large_send = QETH_LARGE_SEND_NO;
7504 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7505 NETIF_F_HW_CSUM);
7506 }
7507 return rc;
7508 }
7509
7510 static int
7511 qeth_start_ipassists(struct qeth_card *card)
7512 {
7513 QETH_DBF_TEXT(trace,3,"strtipas");
7514 qeth_start_ipa_arp_processing(card); /* go on*/
7515 qeth_start_ipa_ip_fragmentation(card); /* go on*/
7516 qeth_start_ipa_source_mac(card); /* go on*/
7517 qeth_start_ipa_vlan(card); /* go on*/
7518 qeth_start_ipa_multicast(card); /* go on*/
7519 qeth_start_ipa_ipv6(card); /* go on*/
7520 qeth_start_ipa_broadcast(card); /* go on*/
7521 qeth_start_ipa_checksum(card); /* go on*/
7522 qeth_start_ipa_tso(card); /* go on*/
7523 return 0;
7524 }
7525
7526 static int
7527 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7528 enum qeth_prot_versions prot)
7529 {
7530 int rc;
7531 struct qeth_ipa_cmd *cmd;
7532 struct qeth_cmd_buffer *iob;
7533
7534 QETH_DBF_TEXT(trace,4,"setroutg");
7535 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7536 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7537 cmd->data.setrtg.type = (type);
7538 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7539
7540 return rc;
7541
7542 }
7543
7544 static void
7545 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7546 enum qeth_prot_versions prot)
7547 {
7548 if (card->info.type == QETH_CARD_TYPE_IQD) {
7549 switch (*type) {
7550 case NO_ROUTER:
7551 case PRIMARY_CONNECTOR:
7552 case SECONDARY_CONNECTOR:
7553 case MULTICAST_ROUTER:
7554 return;
7555 default:
7556 goto out_inval;
7557 }
7558 } else {
7559 switch (*type) {
7560 case NO_ROUTER:
7561 case PRIMARY_ROUTER:
7562 case SECONDARY_ROUTER:
7563 return;
7564 case MULTICAST_ROUTER:
7565 if (qeth_is_ipafunc_supported(card, prot,
7566 IPA_OSA_MC_ROUTER))
7567 return;
7568 default:
7569 goto out_inval;
7570 }
7571 }
7572 out_inval:
7573 PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7574 "Router status set to 'no router'.\n",
7575 ((*type == PRIMARY_ROUTER)? "primary router" :
7576 (*type == SECONDARY_ROUTER)? "secondary router" :
7577 (*type == PRIMARY_CONNECTOR)? "primary connector" :
7578 (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7579 (*type == MULTICAST_ROUTER)? "multicast router" :
7580 "unknown"),
7581 card->dev->name);
7582 *type = NO_ROUTER;
7583 }
7584
7585 int
7586 qeth_setrouting_v4(struct qeth_card *card)
7587 {
7588 int rc;
7589
7590 QETH_DBF_TEXT(trace,3,"setrtg4");
7591
7592 qeth_correct_routing_type(card, &card->options.route4.type,
7593 QETH_PROT_IPV4);
7594
7595 rc = qeth_send_setrouting(card, card->options.route4.type,
7596 QETH_PROT_IPV4);
7597 if (rc) {
7598 card->options.route4.type = NO_ROUTER;
7599 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7600 "Type set to 'no router'.\n",
7601 rc, QETH_CARD_IFNAME(card));
7602 }
7603 return rc;
7604 }
7605
7606 int
7607 qeth_setrouting_v6(struct qeth_card *card)
7608 {
7609 int rc = 0;
7610
7611 QETH_DBF_TEXT(trace,3,"setrtg6");
7612 #ifdef CONFIG_QETH_IPV6
7613
7614 if (!qeth_is_supported(card, IPA_IPV6))
7615 return 0;
7616 qeth_correct_routing_type(card, &card->options.route6.type,
7617 QETH_PROT_IPV6);
7618
7619 rc = qeth_send_setrouting(card, card->options.route6.type,
7620 QETH_PROT_IPV6);
7621 if (rc) {
7622 card->options.route6.type = NO_ROUTER;
7623 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7624 "Type set to 'no router'.\n",
7625 rc, QETH_CARD_IFNAME(card));
7626 }
7627 #endif
7628 return rc;
7629 }
7630
7631 int
7632 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7633 {
7634 int rc = 0;
7635
7636 if (card->dev == NULL) {
7637 card->options.large_send = type;
7638 return 0;
7639 }
7640 if (card->state == CARD_STATE_UP)
7641 netif_tx_disable(card->dev);
7642 card->options.large_send = type;
7643 switch (card->options.large_send) {
7644 case QETH_LARGE_SEND_EDDP:
7645 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
7646 NETIF_F_HW_CSUM;
7647 break;
7648 case QETH_LARGE_SEND_TSO:
7649 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7650 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
7651 NETIF_F_HW_CSUM;
7652 } else {
7653 PRINT_WARN("TSO not supported on %s. "
7654 "large_send set to 'no'.\n",
7655 card->dev->name);
7656 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7657 NETIF_F_HW_CSUM);
7658 card->options.large_send = QETH_LARGE_SEND_NO;
7659 rc = -EOPNOTSUPP;
7660 }
7661 break;
7662 default: /* includes QETH_LARGE_SEND_NO */
7663 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7664 NETIF_F_HW_CSUM);
7665 break;
7666 }
7667 if (card->state == CARD_STATE_UP)
7668 netif_wake_queue(card->dev);
7669 return rc;
7670 }
7671
7672 /*
7673 * softsetup card: init IPA stuff
7674 */
7675 static int
7676 qeth_softsetup_card(struct qeth_card *card)
7677 {
7678 int rc;
7679
7680 QETH_DBF_TEXT(setup, 2, "softsetp");
7681
7682 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7683 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7684 if (rc == 0xe080){
7685 PRINT_WARN("LAN on card %s if offline! "
7686 "Waiting for STARTLAN from card.\n",
7687 CARD_BUS_ID(card));
7688 card->lan_online = 0;
7689 }
7690 return rc;
7691 } else
7692 card->lan_online = 1;
7693 if (card->info.type==QETH_CARD_TYPE_OSN)
7694 goto out;
7695 qeth_set_large_send(card, card->options.large_send);
7696 if (card->options.layer2) {
7697 card->dev->features |=
7698 NETIF_F_HW_VLAN_FILTER |
7699 NETIF_F_HW_VLAN_TX |
7700 NETIF_F_HW_VLAN_RX;
7701 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7702 card->info.broadcast_capable=1;
7703 if ((rc = qeth_layer2_initialize(card))) {
7704 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7705 return rc;
7706 }
7707 #ifdef CONFIG_QETH_VLAN
7708 qeth_layer2_process_vlans(card, 0);
7709 #endif
7710 goto out;
7711 }
7712 if ((rc = qeth_setadapter_parms(card)))
7713 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7714 if ((rc = qeth_start_ipassists(card)))
7715 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7716 if ((rc = qeth_setrouting_v4(card)))
7717 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7718 if ((rc = qeth_setrouting_v6(card)))
7719 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7720 out:
7721 netif_tx_disable(card->dev);
7722 return 0;
7723 }
7724
7725 #ifdef CONFIG_QETH_IPV6
7726 static int
7727 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7728 unsigned long data)
7729 {
7730 struct qeth_ipa_cmd *cmd;
7731
7732 cmd = (struct qeth_ipa_cmd *) data;
7733 if (cmd->hdr.return_code == 0)
7734 card->info.unique_id = *((__u16 *)
7735 &cmd->data.create_destroy_addr.unique_id[6]);
7736 else {
7737 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7738 UNIQUE_ID_NOT_BY_CARD;
7739 PRINT_WARN("couldn't get a unique id from the card on device "
7740 "%s (result=x%x), using default id. ipv6 "
7741 "autoconfig on other lpars may lead to duplicate "
7742 "ip addresses. please use manually "
7743 "configured ones.\n",
7744 CARD_BUS_ID(card), cmd->hdr.return_code);
7745 }
7746 return 0;
7747 }
7748 #endif
7749
7750 static int
7751 qeth_put_unique_id(struct qeth_card *card)
7752 {
7753
7754 int rc = 0;
7755 #ifdef CONFIG_QETH_IPV6
7756 struct qeth_cmd_buffer *iob;
7757 struct qeth_ipa_cmd *cmd;
7758
7759 QETH_DBF_TEXT(trace,2,"puniqeid");
7760
7761 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7762 UNIQUE_ID_NOT_BY_CARD)
7763 return -1;
7764 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7765 QETH_PROT_IPV6);
7766 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7767 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7768 card->info.unique_id;
7769 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7770 card->dev->dev_addr, OSA_ADDR_LEN);
7771 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7772 #else
7773 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7774 UNIQUE_ID_NOT_BY_CARD;
7775 #endif
7776 return rc;
7777 }
7778
7779 /**
7780 * Clear IP List
7781 */
7782 static void
7783 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7784 {
7785 struct qeth_ipaddr *addr, *tmp;
7786 unsigned long flags;
7787
7788 QETH_DBF_TEXT(trace,4,"clearip");
7789 spin_lock_irqsave(&card->ip_lock, flags);
7790 /* clear todo list */
7791 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7792 list_del(&addr->entry);
7793 kfree(addr);
7794 }
7795
7796 while (!list_empty(&card->ip_list)) {
7797 addr = list_entry(card->ip_list.next,
7798 struct qeth_ipaddr, entry);
7799 list_del_init(&addr->entry);
7800 if (clean) {
7801 spin_unlock_irqrestore(&card->ip_lock, flags);
7802 qeth_deregister_addr_entry(card, addr);
7803 spin_lock_irqsave(&card->ip_lock, flags);
7804 }
7805 if (!recover || addr->is_multicast) {
7806 kfree(addr);
7807 continue;
7808 }
7809 list_add_tail(&addr->entry, card->ip_tbd_list);
7810 }
7811 spin_unlock_irqrestore(&card->ip_lock, flags);
7812 }
7813
7814 static void
7815 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7816 int clear_start_mask)
7817 {
7818 unsigned long flags;
7819
7820 spin_lock_irqsave(&card->thread_mask_lock, flags);
7821 card->thread_allowed_mask = threads;
7822 if (clear_start_mask)
7823 card->thread_start_mask &= threads;
7824 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7825 wake_up(&card->wait_q);
7826 }
7827
7828 static int
7829 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7830 {
7831 unsigned long flags;
7832 int rc = 0;
7833
7834 spin_lock_irqsave(&card->thread_mask_lock, flags);
7835 rc = (card->thread_running_mask & threads);
7836 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7837 return rc;
7838 }
7839
7840 static int
7841 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7842 {
7843 return wait_event_interruptible(card->wait_q,
7844 qeth_threads_running(card, threads) == 0);
7845 }
7846
7847 static int
7848 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7849 {
7850 int rc = 0;
7851
7852 QETH_DBF_TEXT(setup ,2,"stopcard");
7853 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7854
7855 qeth_set_allowed_threads(card, 0, 1);
7856 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7857 return -ERESTARTSYS;
7858 if (card->read.state == CH_STATE_UP &&
7859 card->write.state == CH_STATE_UP &&
7860 (card->state == CARD_STATE_UP)) {
7861 if (recovery_mode &&
7862 card->info.type != QETH_CARD_TYPE_OSN) {
7863 qeth_stop(card->dev);
7864 } else {
7865 rtnl_lock();
7866 dev_close(card->dev);
7867 rtnl_unlock();
7868 }
7869 if (!card->use_hard_stop) {
7870 __u8 *mac = &card->dev->dev_addr[0];
7871 rc = qeth_layer2_send_delmac(card, mac);
7872 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7873 if ((rc = qeth_send_stoplan(card)))
7874 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7875 }
7876 card->state = CARD_STATE_SOFTSETUP;
7877 }
7878 if (card->state == CARD_STATE_SOFTSETUP) {
7879 #ifdef CONFIG_QETH_VLAN
7880 if (card->options.layer2)
7881 qeth_layer2_process_vlans(card, 1);
7882 #endif
7883 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7884 qeth_clear_ipacmd_list(card);
7885 card->state = CARD_STATE_HARDSETUP;
7886 }
7887 if (card->state == CARD_STATE_HARDSETUP) {
7888 if ((!card->use_hard_stop) &&
7889 (!card->options.layer2))
7890 if ((rc = qeth_put_unique_id(card)))
7891 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7892 qeth_qdio_clear_card(card, 0);
7893 qeth_clear_qdio_buffers(card);
7894 qeth_clear_working_pool_list(card);
7895 card->state = CARD_STATE_DOWN;
7896 }
7897 if (card->state == CARD_STATE_DOWN) {
7898 qeth_clear_cmd_buffers(&card->read);
7899 qeth_clear_cmd_buffers(&card->write);
7900 }
7901 card->use_hard_stop = 0;
7902 return rc;
7903 }
7904
7905
7906 static int
7907 qeth_get_unique_id(struct qeth_card *card)
7908 {
7909 int rc = 0;
7910 #ifdef CONFIG_QETH_IPV6
7911 struct qeth_cmd_buffer *iob;
7912 struct qeth_ipa_cmd *cmd;
7913
7914 QETH_DBF_TEXT(setup, 2, "guniqeid");
7915
7916 if (!qeth_is_supported(card,IPA_IPV6)) {
7917 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7918 UNIQUE_ID_NOT_BY_CARD;
7919 return 0;
7920 }
7921
7922 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7923 QETH_PROT_IPV6);
7924 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7925 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7926 card->info.unique_id;
7927
7928 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7929 #else
7930 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7931 UNIQUE_ID_NOT_BY_CARD;
7932 #endif
7933 return rc;
7934 }
7935 static void
7936 qeth_print_status_with_portname(struct qeth_card *card)
7937 {
7938 char dbf_text[15];
7939 int i;
7940
7941 sprintf(dbf_text, "%s", card->info.portname + 1);
7942 for (i = 0; i < 8; i++)
7943 dbf_text[i] =
7944 (char) _ebcasc[(__u8) dbf_text[i]];
7945 dbf_text[8] = 0;
7946 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7947 "with link type %s (portname: %s)\n",
7948 CARD_RDEV_ID(card),
7949 CARD_WDEV_ID(card),
7950 CARD_DDEV_ID(card),
7951 qeth_get_cardname(card),
7952 (card->info.mcl_level[0]) ? " (level: " : "",
7953 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7954 (card->info.mcl_level[0]) ? ")" : "",
7955 qeth_get_cardname_short(card),
7956 dbf_text);
7957
7958 }
7959
7960 static void
7961 qeth_print_status_no_portname(struct qeth_card *card)
7962 {
7963 if (card->info.portname[0])
7964 printk("qeth: Device %s/%s/%s is a%s "
7965 "card%s%s%s\nwith link type %s "
7966 "(no portname needed by interface).\n",
7967 CARD_RDEV_ID(card),
7968 CARD_WDEV_ID(card),
7969 CARD_DDEV_ID(card),
7970 qeth_get_cardname(card),
7971 (card->info.mcl_level[0]) ? " (level: " : "",
7972 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7973 (card->info.mcl_level[0]) ? ")" : "",
7974 qeth_get_cardname_short(card));
7975 else
7976 printk("qeth: Device %s/%s/%s is a%s "
7977 "card%s%s%s\nwith link type %s.\n",
7978 CARD_RDEV_ID(card),
7979 CARD_WDEV_ID(card),
7980 CARD_DDEV_ID(card),
7981 qeth_get_cardname(card),
7982 (card->info.mcl_level[0]) ? " (level: " : "",
7983 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7984 (card->info.mcl_level[0]) ? ")" : "",
7985 qeth_get_cardname_short(card));
7986 }
7987
7988 static void
7989 qeth_print_status_message(struct qeth_card *card)
7990 {
7991 switch (card->info.type) {
7992 case QETH_CARD_TYPE_OSAE:
7993 /* VM will use a non-zero first character
7994 * to indicate a HiperSockets like reporting
7995 * of the level OSA sets the first character to zero
7996 * */
7997 if (!card->info.mcl_level[0]) {
7998 sprintf(card->info.mcl_level,"%02x%02x",
7999 card->info.mcl_level[2],
8000 card->info.mcl_level[3]);
8001
8002 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
8003 break;
8004 }
8005 /* fallthrough */
8006 case QETH_CARD_TYPE_IQD:
8007 if (card->info.guestlan) {
8008 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
8009 card->info.mcl_level[0]];
8010 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
8011 card->info.mcl_level[1]];
8012 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
8013 card->info.mcl_level[2]];
8014 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
8015 card->info.mcl_level[3]];
8016 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
8017 }
8018 break;
8019 default:
8020 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
8021 }
8022 if (card->info.portname_required)
8023 qeth_print_status_with_portname(card);
8024 else
8025 qeth_print_status_no_portname(card);
8026 }
8027
8028 static int
8029 qeth_register_netdev(struct qeth_card *card)
8030 {
8031 QETH_DBF_TEXT(setup, 3, "regnetd");
8032 if (card->dev->reg_state != NETREG_UNINITIALIZED)
8033 return 0;
8034 /* sysfs magic */
8035 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
8036 return register_netdev(card->dev);
8037 }
8038
8039 static void
8040 qeth_start_again(struct qeth_card *card, int recovery_mode)
8041 {
8042 QETH_DBF_TEXT(setup ,2, "startag");
8043
8044 if (recovery_mode &&
8045 card->info.type != QETH_CARD_TYPE_OSN) {
8046 qeth_open(card->dev);
8047 } else {
8048 rtnl_lock();
8049 dev_open(card->dev);
8050 rtnl_unlock();
8051 }
8052 /* this also sets saved unicast addresses */
8053 qeth_set_multicast_list(card->dev);
8054 }
8055
8056
8057 /* Layer 2 specific stuff */
8058 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
8059 if (card->options.option == value) { \
8060 PRINT_ERR("%s not supported with layer 2 " \
8061 "functionality, ignoring option on read" \
8062 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
8063 card->options.option = reset_value; \
8064 }
8065 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
8066 if (card->options.option != value) { \
8067 PRINT_ERR("%s not supported with layer 2 " \
8068 "functionality, ignoring option on read" \
8069 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
8070 card->options.option = reset_value; \
8071 }
8072
8073
8074 static void qeth_make_parameters_consistent(struct qeth_card *card)
8075 {
8076
8077 if (card->options.layer2 == 0)
8078 return;
8079 if (card->info.type == QETH_CARD_TYPE_OSN)
8080 return;
8081 if (card->info.type == QETH_CARD_TYPE_IQD) {
8082 PRINT_ERR("Device %s does not support layer 2 functionality." \
8083 " Ignoring layer2 option.\n",CARD_BUS_ID(card));
8084 card->options.layer2 = 0;
8085 return;
8086 }
8087 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
8088 "Routing options are");
8089 #ifdef CONFIG_QETH_IPV6
8090 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
8091 "Routing options are");
8092 #endif
8093 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
8094 QETH_CHECKSUM_DEFAULT,
8095 "Checksumming options are");
8096 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
8097 QETH_TR_BROADCAST_ALLRINGS,
8098 "Broadcast mode options are");
8099 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
8100 QETH_TR_MACADDR_NONCANONICAL,
8101 "Canonical MAC addr options are");
8102 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
8103 "Broadcast faking options are");
8104 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
8105 DEFAULT_ADD_HHLEN,"Option add_hhlen is");
8106 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
8107 }
8108
8109
8110 static int
8111 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
8112 {
8113 struct qeth_card *card = gdev->dev.driver_data;
8114 int rc = 0;
8115 enum qeth_card_states recover_flag;
8116
8117 BUG_ON(!card);
8118 QETH_DBF_TEXT(setup ,2, "setonlin");
8119 QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
8120
8121 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
8122 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
8123 PRINT_WARN("set_online of card %s interrupted by user!\n",
8124 CARD_BUS_ID(card));
8125 return -ERESTARTSYS;
8126 }
8127
8128 recover_flag = card->state;
8129 if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
8130 (rc = ccw_device_set_online(CARD_WDEV(card))) ||
8131 (rc = ccw_device_set_online(CARD_DDEV(card)))){
8132 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
8133 return -EIO;
8134 }
8135
8136 qeth_make_parameters_consistent(card);
8137
8138 if ((rc = qeth_hardsetup_card(card))){
8139 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
8140 goto out_remove;
8141 }
8142 card->state = CARD_STATE_HARDSETUP;
8143
8144 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
8145 rc = qeth_get_unique_id(card);
8146
8147 if (rc && card->options.layer2 == 0) {
8148 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
8149 goto out_remove;
8150 }
8151 qeth_print_status_message(card);
8152 if ((rc = qeth_register_netdev(card))){
8153 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
8154 goto out_remove;
8155 }
8156 if ((rc = qeth_softsetup_card(card))){
8157 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
8158 goto out_remove;
8159 }
8160
8161 if ((rc = qeth_init_qdio_queues(card))){
8162 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
8163 goto out_remove;
8164 }
8165 card->state = CARD_STATE_SOFTSETUP;
8166 netif_carrier_on(card->dev);
8167
8168 qeth_set_allowed_threads(card, 0xffffffff, 0);
8169 if (recover_flag == CARD_STATE_RECOVER)
8170 qeth_start_again(card, recovery_mode);
8171 qeth_notify_processes();
8172 return 0;
8173 out_remove:
8174 card->use_hard_stop = 1;
8175 qeth_stop_card(card, 0);
8176 ccw_device_set_offline(CARD_DDEV(card));
8177 ccw_device_set_offline(CARD_WDEV(card));
8178 ccw_device_set_offline(CARD_RDEV(card));
8179 if (recover_flag == CARD_STATE_RECOVER)
8180 card->state = CARD_STATE_RECOVER;
8181 else
8182 card->state = CARD_STATE_DOWN;
8183 return -ENODEV;
8184 }
8185
8186 static int
8187 qeth_set_online(struct ccwgroup_device *gdev)
8188 {
8189 return __qeth_set_online(gdev, 0);
8190 }
8191
8192 static struct ccw_device_id qeth_ids[] = {
8193 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
8194 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
8195 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
8196 {},
8197 };
8198 MODULE_DEVICE_TABLE(ccw, qeth_ids);
8199
8200 struct device *qeth_root_dev = NULL;
8201
8202 struct ccwgroup_driver qeth_ccwgroup_driver = {
8203 .owner = THIS_MODULE,
8204 .name = "qeth",
8205 .driver_id = 0xD8C5E3C8,
8206 .probe = qeth_probe_device,
8207 .remove = qeth_remove_device,
8208 .set_online = qeth_set_online,
8209 .set_offline = qeth_set_offline,
8210 };
8211
8212 struct ccw_driver qeth_ccw_driver = {
8213 .name = "qeth",
8214 .ids = qeth_ids,
8215 .probe = ccwgroup_probe_ccwdev,
8216 .remove = ccwgroup_remove_ccwdev,
8217 };
8218
8219
8220 static void
8221 qeth_unregister_dbf_views(void)
8222 {
8223 if (qeth_dbf_setup)
8224 debug_unregister(qeth_dbf_setup);
8225 if (qeth_dbf_qerr)
8226 debug_unregister(qeth_dbf_qerr);
8227 if (qeth_dbf_sense)
8228 debug_unregister(qeth_dbf_sense);
8229 if (qeth_dbf_misc)
8230 debug_unregister(qeth_dbf_misc);
8231 if (qeth_dbf_data)
8232 debug_unregister(qeth_dbf_data);
8233 if (qeth_dbf_control)
8234 debug_unregister(qeth_dbf_control);
8235 if (qeth_dbf_trace)
8236 debug_unregister(qeth_dbf_trace);
8237 }
8238 static int
8239 qeth_register_dbf_views(void)
8240 {
8241 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8242 QETH_DBF_SETUP_PAGES,
8243 QETH_DBF_SETUP_NR_AREAS,
8244 QETH_DBF_SETUP_LEN);
8245 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8246 QETH_DBF_MISC_PAGES,
8247 QETH_DBF_MISC_NR_AREAS,
8248 QETH_DBF_MISC_LEN);
8249 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8250 QETH_DBF_DATA_PAGES,
8251 QETH_DBF_DATA_NR_AREAS,
8252 QETH_DBF_DATA_LEN);
8253 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8254 QETH_DBF_CONTROL_PAGES,
8255 QETH_DBF_CONTROL_NR_AREAS,
8256 QETH_DBF_CONTROL_LEN);
8257 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8258 QETH_DBF_SENSE_PAGES,
8259 QETH_DBF_SENSE_NR_AREAS,
8260 QETH_DBF_SENSE_LEN);
8261 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8262 QETH_DBF_QERR_PAGES,
8263 QETH_DBF_QERR_NR_AREAS,
8264 QETH_DBF_QERR_LEN);
8265 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8266 QETH_DBF_TRACE_PAGES,
8267 QETH_DBF_TRACE_NR_AREAS,
8268 QETH_DBF_TRACE_LEN);
8269
8270 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) ||
8271 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) ||
8272 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) ||
8273 (qeth_dbf_trace == NULL)) {
8274 qeth_unregister_dbf_views();
8275 return -ENOMEM;
8276 }
8277 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8278 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8279
8280 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8281 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8282
8283 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8284 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8285
8286 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8287 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8288
8289 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8290 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8291
8292 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8293 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8294
8295 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8296 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8297
8298 return 0;
8299 }
8300
8301 #ifdef CONFIG_QETH_IPV6
8302 extern struct neigh_table arp_tbl;
8303 static struct neigh_ops *arp_direct_ops;
8304 static int (*qeth_old_arp_constructor) (struct neighbour *);
8305
8306 static struct neigh_ops arp_direct_ops_template = {
8307 .family = AF_INET,
8308 .solicit = NULL,
8309 .error_report = NULL,
8310 .output = dev_queue_xmit,
8311 .connected_output = dev_queue_xmit,
8312 .hh_output = dev_queue_xmit,
8313 .queue_xmit = dev_queue_xmit
8314 };
8315
8316 static int
8317 qeth_arp_constructor(struct neighbour *neigh)
8318 {
8319 struct net_device *dev = neigh->dev;
8320 struct in_device *in_dev;
8321 struct neigh_parms *parms;
8322 struct qeth_card *card;
8323
8324 card = qeth_get_card_from_dev(dev);
8325 if (card == NULL)
8326 goto out;
8327 if((card->options.layer2) ||
8328 (card->dev->header_ops == &qeth_fake_ops))
8329 goto out;
8330
8331 rcu_read_lock();
8332 in_dev = __in_dev_get_rcu(dev);
8333 if (in_dev == NULL) {
8334 rcu_read_unlock();
8335 return -EINVAL;
8336 }
8337
8338 parms = in_dev->arp_parms;
8339 __neigh_parms_put(neigh->parms);
8340 neigh->parms = neigh_parms_clone(parms);
8341 rcu_read_unlock();
8342
8343 neigh->type = inet_addr_type(&init_net, *(__be32 *) neigh->primary_key);
8344 neigh->nud_state = NUD_NOARP;
8345 neigh->ops = arp_direct_ops;
8346 neigh->output = neigh->ops->queue_xmit;
8347 return 0;
8348 out:
8349 return qeth_old_arp_constructor(neigh);
8350 }
8351 #endif /*CONFIG_QETH_IPV6*/
8352
8353 /*
8354 * IP address takeover related functions
8355 */
8356 static void
8357 qeth_clear_ipato_list(struct qeth_card *card)
8358 {
8359 struct qeth_ipato_entry *ipatoe, *tmp;
8360 unsigned long flags;
8361
8362 spin_lock_irqsave(&card->ip_lock, flags);
8363 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8364 list_del(&ipatoe->entry);
8365 kfree(ipatoe);
8366 }
8367 spin_unlock_irqrestore(&card->ip_lock, flags);
8368 }
8369
8370 int
8371 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8372 {
8373 struct qeth_ipato_entry *ipatoe;
8374 unsigned long flags;
8375 int rc = 0;
8376
8377 QETH_DBF_TEXT(trace, 2, "addipato");
8378 spin_lock_irqsave(&card->ip_lock, flags);
8379 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8380 if (ipatoe->proto != new->proto)
8381 continue;
8382 if (!memcmp(ipatoe->addr, new->addr,
8383 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8384 (ipatoe->mask_bits == new->mask_bits)){
8385 PRINT_WARN("ipato entry already exists!\n");
8386 rc = -EEXIST;
8387 break;
8388 }
8389 }
8390 if (!rc) {
8391 list_add_tail(&new->entry, &card->ipato.entries);
8392 }
8393 spin_unlock_irqrestore(&card->ip_lock, flags);
8394 return rc;
8395 }
8396
8397 void
8398 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8399 u8 *addr, int mask_bits)
8400 {
8401 struct qeth_ipato_entry *ipatoe, *tmp;
8402 unsigned long flags;
8403
8404 QETH_DBF_TEXT(trace, 2, "delipato");
8405 spin_lock_irqsave(&card->ip_lock, flags);
8406 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8407 if (ipatoe->proto != proto)
8408 continue;
8409 if (!memcmp(ipatoe->addr, addr,
8410 (proto == QETH_PROT_IPV4)? 4:16) &&
8411 (ipatoe->mask_bits == mask_bits)){
8412 list_del(&ipatoe->entry);
8413 kfree(ipatoe);
8414 }
8415 }
8416 spin_unlock_irqrestore(&card->ip_lock, flags);
8417 }
8418
8419 static void
8420 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8421 {
8422 int i, j;
8423 u8 octet;
8424
8425 for (i = 0; i < len; ++i){
8426 octet = addr[i];
8427 for (j = 7; j >= 0; --j){
8428 bits[i*8 + j] = octet & 1;
8429 octet >>= 1;
8430 }
8431 }
8432 }
8433
8434 static int
8435 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8436 {
8437 struct qeth_ipato_entry *ipatoe;
8438 u8 addr_bits[128] = {0, };
8439 u8 ipatoe_bits[128] = {0, };
8440 int rc = 0;
8441
8442 if (!card->ipato.enabled)
8443 return 0;
8444
8445 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8446 (addr->proto == QETH_PROT_IPV4)? 4:16);
8447 list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8448 if (addr->proto != ipatoe->proto)
8449 continue;
8450 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8451 (ipatoe->proto==QETH_PROT_IPV4) ?
8452 4:16);
8453 if (addr->proto == QETH_PROT_IPV4)
8454 rc = !memcmp(addr_bits, ipatoe_bits,
8455 min(32, ipatoe->mask_bits));
8456 else
8457 rc = !memcmp(addr_bits, ipatoe_bits,
8458 min(128, ipatoe->mask_bits));
8459 if (rc)
8460 break;
8461 }
8462 /* invert? */
8463 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8464 rc = !rc;
8465 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8466 rc = !rc;
8467
8468 return rc;
8469 }
8470
8471 /*
8472 * VIPA related functions
8473 */
8474 int
8475 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8476 const u8 *addr)
8477 {
8478 struct qeth_ipaddr *ipaddr;
8479 unsigned long flags;
8480 int rc = 0;
8481
8482 ipaddr = qeth_get_addr_buffer(proto);
8483 if (ipaddr){
8484 if (proto == QETH_PROT_IPV4){
8485 QETH_DBF_TEXT(trace, 2, "addvipa4");
8486 memcpy(&ipaddr->u.a4.addr, addr, 4);
8487 ipaddr->u.a4.mask = 0;
8488 #ifdef CONFIG_QETH_IPV6
8489 } else if (proto == QETH_PROT_IPV6){
8490 QETH_DBF_TEXT(trace, 2, "addvipa6");
8491 memcpy(&ipaddr->u.a6.addr, addr, 16);
8492 ipaddr->u.a6.pfxlen = 0;
8493 #endif
8494 }
8495 ipaddr->type = QETH_IP_TYPE_VIPA;
8496 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8497 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8498 } else
8499 return -ENOMEM;
8500 spin_lock_irqsave(&card->ip_lock, flags);
8501 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8502 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8503 rc = -EEXIST;
8504 spin_unlock_irqrestore(&card->ip_lock, flags);
8505 if (rc){
8506 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8507 return rc;
8508 }
8509 if (!qeth_add_ip(card, ipaddr))
8510 kfree(ipaddr);
8511 qeth_set_ip_addr_list(card);
8512 return rc;
8513 }
8514
8515 void
8516 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8517 const u8 *addr)
8518 {
8519 struct qeth_ipaddr *ipaddr;
8520
8521 ipaddr = qeth_get_addr_buffer(proto);
8522 if (ipaddr){
8523 if (proto == QETH_PROT_IPV4){
8524 QETH_DBF_TEXT(trace, 2, "delvipa4");
8525 memcpy(&ipaddr->u.a4.addr, addr, 4);
8526 ipaddr->u.a4.mask = 0;
8527 #ifdef CONFIG_QETH_IPV6
8528 } else if (proto == QETH_PROT_IPV6){
8529 QETH_DBF_TEXT(trace, 2, "delvipa6");
8530 memcpy(&ipaddr->u.a6.addr, addr, 16);
8531 ipaddr->u.a6.pfxlen = 0;
8532 #endif
8533 }
8534 ipaddr->type = QETH_IP_TYPE_VIPA;
8535 } else
8536 return;
8537 if (!qeth_delete_ip(card, ipaddr))
8538 kfree(ipaddr);
8539 qeth_set_ip_addr_list(card);
8540 }
8541
8542 /*
8543 * proxy ARP related functions
8544 */
8545 int
8546 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8547 const u8 *addr)
8548 {
8549 struct qeth_ipaddr *ipaddr;
8550 unsigned long flags;
8551 int rc = 0;
8552
8553 ipaddr = qeth_get_addr_buffer(proto);
8554 if (ipaddr){
8555 if (proto == QETH_PROT_IPV4){
8556 QETH_DBF_TEXT(trace, 2, "addrxip4");
8557 memcpy(&ipaddr->u.a4.addr, addr, 4);
8558 ipaddr->u.a4.mask = 0;
8559 #ifdef CONFIG_QETH_IPV6
8560 } else if (proto == QETH_PROT_IPV6){
8561 QETH_DBF_TEXT(trace, 2, "addrxip6");
8562 memcpy(&ipaddr->u.a6.addr, addr, 16);
8563 ipaddr->u.a6.pfxlen = 0;
8564 #endif
8565 }
8566 ipaddr->type = QETH_IP_TYPE_RXIP;
8567 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8568 ipaddr->del_flags = 0;
8569 } else
8570 return -ENOMEM;
8571 spin_lock_irqsave(&card->ip_lock, flags);
8572 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8573 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8574 rc = -EEXIST;
8575 spin_unlock_irqrestore(&card->ip_lock, flags);
8576 if (rc){
8577 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8578 return rc;
8579 }
8580 if (!qeth_add_ip(card, ipaddr))
8581 kfree(ipaddr);
8582 qeth_set_ip_addr_list(card);
8583 return 0;
8584 }
8585
8586 void
8587 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8588 const u8 *addr)
8589 {
8590 struct qeth_ipaddr *ipaddr;
8591
8592 ipaddr = qeth_get_addr_buffer(proto);
8593 if (ipaddr){
8594 if (proto == QETH_PROT_IPV4){
8595 QETH_DBF_TEXT(trace, 2, "addrxip4");
8596 memcpy(&ipaddr->u.a4.addr, addr, 4);
8597 ipaddr->u.a4.mask = 0;
8598 #ifdef CONFIG_QETH_IPV6
8599 } else if (proto == QETH_PROT_IPV6){
8600 QETH_DBF_TEXT(trace, 2, "addrxip6");
8601 memcpy(&ipaddr->u.a6.addr, addr, 16);
8602 ipaddr->u.a6.pfxlen = 0;
8603 #endif
8604 }
8605 ipaddr->type = QETH_IP_TYPE_RXIP;
8606 } else
8607 return;
8608 if (!qeth_delete_ip(card, ipaddr))
8609 kfree(ipaddr);
8610 qeth_set_ip_addr_list(card);
8611 }
8612
8613 /**
8614 * IP event handler
8615 */
8616 static int
8617 qeth_ip_event(struct notifier_block *this,
8618 unsigned long event,void *ptr)
8619 {
8620 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8621 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8622 struct qeth_ipaddr *addr;
8623 struct qeth_card *card;
8624
8625 QETH_DBF_TEXT(trace,3,"ipevent");
8626 card = qeth_get_card_from_dev(dev);
8627 if (!card)
8628 return NOTIFY_DONE;
8629 if (card->options.layer2)
8630 return NOTIFY_DONE;
8631
8632 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8633 if (addr != NULL) {
8634 addr->u.a4.addr = ifa->ifa_address;
8635 addr->u.a4.mask = ifa->ifa_mask;
8636 addr->type = QETH_IP_TYPE_NORMAL;
8637 } else
8638 goto out;
8639
8640 switch(event) {
8641 case NETDEV_UP:
8642 if (!qeth_add_ip(card, addr))
8643 kfree(addr);
8644 break;
8645 case NETDEV_DOWN:
8646 if (!qeth_delete_ip(card, addr))
8647 kfree(addr);
8648 break;
8649 default:
8650 break;
8651 }
8652 qeth_set_ip_addr_list(card);
8653 out:
8654 return NOTIFY_DONE;
8655 }
8656
8657 static struct notifier_block qeth_ip_notifier = {
8658 qeth_ip_event,
8659 NULL,
8660 };
8661
8662 #ifdef CONFIG_QETH_IPV6
8663 /**
8664 * IPv6 event handler
8665 */
8666 static int
8667 qeth_ip6_event(struct notifier_block *this,
8668 unsigned long event,void *ptr)
8669 {
8670
8671 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8672 struct net_device *dev = (struct net_device *)ifa->idev->dev;
8673 struct qeth_ipaddr *addr;
8674 struct qeth_card *card;
8675
8676 QETH_DBF_TEXT(trace,3,"ip6event");
8677
8678 card = qeth_get_card_from_dev(dev);
8679 if (!card)
8680 return NOTIFY_DONE;
8681 if (!qeth_is_supported(card, IPA_IPV6))
8682 return NOTIFY_DONE;
8683
8684 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8685 if (addr != NULL) {
8686 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8687 addr->u.a6.pfxlen = ifa->prefix_len;
8688 addr->type = QETH_IP_TYPE_NORMAL;
8689 } else
8690 goto out;
8691
8692 switch(event) {
8693 case NETDEV_UP:
8694 if (!qeth_add_ip(card, addr))
8695 kfree(addr);
8696 break;
8697 case NETDEV_DOWN:
8698 if (!qeth_delete_ip(card, addr))
8699 kfree(addr);
8700 break;
8701 default:
8702 break;
8703 }
8704 qeth_set_ip_addr_list(card);
8705 out:
8706 return NOTIFY_DONE;
8707 }
8708
8709 static struct notifier_block qeth_ip6_notifier = {
8710 qeth_ip6_event,
8711 NULL,
8712 };
8713 #endif
8714
8715 static int
8716 __qeth_reboot_event_card(struct device *dev, void *data)
8717 {
8718 struct qeth_card *card;
8719
8720 card = (struct qeth_card *) dev->driver_data;
8721 qeth_clear_ip_list(card, 0, 0);
8722 qeth_qdio_clear_card(card, 0);
8723 qeth_clear_qdio_buffers(card);
8724 return 0;
8725 }
8726
8727 static int
8728 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8729 {
8730 int ret;
8731
8732 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8733 __qeth_reboot_event_card);
8734 return ret ? NOTIFY_BAD : NOTIFY_DONE;
8735 }
8736
8737
8738 static struct notifier_block qeth_reboot_notifier = {
8739 qeth_reboot_event,
8740 NULL,
8741 };
8742
8743 static int
8744 qeth_register_notifiers(void)
8745 {
8746 int r;
8747
8748 QETH_DBF_TEXT(trace,5,"regnotif");
8749 if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8750 return r;
8751 if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8752 goto out_reboot;
8753 #ifdef CONFIG_QETH_IPV6
8754 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8755 goto out_ipv4;
8756 #endif
8757 return 0;
8758
8759 #ifdef CONFIG_QETH_IPV6
8760 out_ipv4:
8761 unregister_inetaddr_notifier(&qeth_ip_notifier);
8762 #endif
8763 out_reboot:
8764 unregister_reboot_notifier(&qeth_reboot_notifier);
8765 return r;
8766 }
8767
8768 /**
8769 * unregister all event notifiers
8770 */
8771 static void
8772 qeth_unregister_notifiers(void)
8773 {
8774
8775 QETH_DBF_TEXT(trace,5,"unregnot");
8776 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8777 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8778 #ifdef CONFIG_QETH_IPV6
8779 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8780 #endif /* QETH_IPV6 */
8781
8782 }
8783
8784 #ifdef CONFIG_QETH_IPV6
8785 static int
8786 qeth_ipv6_init(void)
8787 {
8788 qeth_old_arp_constructor = arp_tbl.constructor;
8789 write_lock_bh(&arp_tbl.lock);
8790 arp_tbl.constructor = qeth_arp_constructor;
8791 write_unlock_bh(&arp_tbl.lock);
8792
8793 arp_direct_ops = (struct neigh_ops*)
8794 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8795 if (!arp_direct_ops)
8796 return -ENOMEM;
8797
8798 memcpy(arp_direct_ops, &arp_direct_ops_template,
8799 sizeof(struct neigh_ops));
8800
8801 return 0;
8802 }
8803
8804 static void
8805 qeth_ipv6_uninit(void)
8806 {
8807 write_lock_bh(&arp_tbl.lock);
8808 arp_tbl.constructor = qeth_old_arp_constructor;
8809 write_unlock_bh(&arp_tbl.lock);
8810 kfree(arp_direct_ops);
8811 }
8812 #endif /* CONFIG_QETH_IPV6 */
8813
8814 static void
8815 qeth_sysfs_unregister(void)
8816 {
8817 s390_root_dev_unregister(qeth_root_dev);
8818 qeth_remove_driver_attributes();
8819 ccw_driver_unregister(&qeth_ccw_driver);
8820 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8821 }
8822
8823 /**
8824 * register qeth at sysfs
8825 */
8826 static int
8827 qeth_sysfs_register(void)
8828 {
8829 int rc;
8830
8831 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8832 if (rc)
8833 goto out;
8834
8835 rc = ccw_driver_register(&qeth_ccw_driver);
8836 if (rc)
8837 goto out_ccw_driver;
8838
8839 rc = qeth_create_driver_attributes();
8840 if (rc)
8841 goto out_qeth_attr;
8842
8843 qeth_root_dev = s390_root_dev_register("qeth");
8844 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8845 if (!rc)
8846 goto out;
8847
8848 qeth_remove_driver_attributes();
8849 out_qeth_attr:
8850 ccw_driver_unregister(&qeth_ccw_driver);
8851 out_ccw_driver:
8852 ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8853 out:
8854 return rc;
8855 }
8856
8857 /***
8858 * init function
8859 */
8860 static int __init
8861 qeth_init(void)
8862 {
8863 int rc;
8864
8865 PRINT_INFO("loading %s\n", version);
8866
8867 INIT_LIST_HEAD(&qeth_card_list.list);
8868 INIT_LIST_HEAD(&qeth_notify_list);
8869 spin_lock_init(&qeth_notify_lock);
8870 rwlock_init(&qeth_card_list.rwlock);
8871
8872 rc = qeth_register_dbf_views();
8873 if (rc)
8874 goto out_err;
8875
8876 rc = qeth_sysfs_register();
8877 if (rc)
8878 goto out_dbf;
8879
8880 #ifdef CONFIG_QETH_IPV6
8881 rc = qeth_ipv6_init();
8882 if (rc) {
8883 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8884 goto out_sysfs;
8885 }
8886 #endif /* QETH_IPV6 */
8887 rc = qeth_register_notifiers();
8888 if (rc)
8889 goto out_ipv6;
8890 rc = qeth_create_procfs_entries();
8891 if (rc)
8892 goto out_notifiers;
8893
8894 return rc;
8895
8896 out_notifiers:
8897 qeth_unregister_notifiers();
8898 out_ipv6:
8899 #ifdef CONFIG_QETH_IPV6
8900 qeth_ipv6_uninit();
8901 out_sysfs:
8902 #endif /* QETH_IPV6 */
8903 qeth_sysfs_unregister();
8904 out_dbf:
8905 qeth_unregister_dbf_views();
8906 out_err:
8907 PRINT_ERR("Initialization failed with code %d\n", rc);
8908 return rc;
8909 }
8910
8911 static void
8912 __exit qeth_exit(void)
8913 {
8914 struct qeth_card *card, *tmp;
8915 unsigned long flags;
8916
8917 QETH_DBF_TEXT(trace,1, "cleanup.");
8918
8919 /*
8920 * Weed would not need to clean up our devices here, because the
8921 * common device layer calls qeth_remove_device for each device
8922 * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8923 * But we do cleanup here so we can do a "soft" shutdown of our cards.
8924 * qeth_remove_device called by the common device layer would otherwise
8925 * do a "hard" shutdown (card->use_hard_stop is set to one in
8926 * qeth_remove_device).
8927 */
8928 again:
8929 read_lock_irqsave(&qeth_card_list.rwlock, flags);
8930 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8931 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8932 qeth_set_offline(card->gdev);
8933 qeth_remove_device(card->gdev);
8934 goto again;
8935 }
8936 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8937 #ifdef CONFIG_QETH_IPV6
8938 qeth_ipv6_uninit();
8939 #endif
8940 qeth_unregister_notifiers();
8941 qeth_remove_procfs_entries();
8942 qeth_sysfs_unregister();
8943 qeth_unregister_dbf_views();
8944 printk("qeth: removed\n");
8945 }
8946
8947 EXPORT_SYMBOL(qeth_osn_register);
8948 EXPORT_SYMBOL(qeth_osn_deregister);
8949 EXPORT_SYMBOL(qeth_osn_assist);
8950 module_init(qeth_init);
8951 module_exit(qeth_exit);
8952 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8953 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8954 "Copyright 2000,2003 IBM Corporation\n");
8955
8956 MODULE_LICENSE("GPL");
WRT350N Kernel Patches