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qeth: rework TSO functions
[deliverable/linux.git] / drivers / s390 / net / qeth_l3_sys.c
CommitLineData
4a71df50
FB		 1/*
2 * drivers/s390/net/qeth_l3_sys.c
3 *
4 * Copyright IBM Corp. 2007
5 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
6 * Frank Pavlic <fpavlic@de.ibm.com>,
7 * Thomas Spatzier <tspat@de.ibm.com>,
8 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 */
10
11#include "qeth_l3.h"
12
13#define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \
14struct device_attribute dev_attr_##_id = __ATTR(_name, _mode, _show, _store)
15
16static const char *qeth_l3_get_checksum_str(struct qeth_card *card)
17{
18 if (card->options.checksum_type == SW_CHECKSUMMING)
19 return "sw";
20 else if (card->options.checksum_type == HW_CHECKSUMMING)
21 return "hw";
22 else
23 return "no";
24}
25
26static ssize_t qeth_l3_dev_route_show(struct qeth_card *card,
27 struct qeth_routing_info *route, char *buf)
28{
29 switch (route->type) {
30 case PRIMARY_ROUTER:
31 return sprintf(buf, "%s\n", "primary router");
32 case SECONDARY_ROUTER:
33 return sprintf(buf, "%s\n", "secondary router");
34 case MULTICAST_ROUTER:
35 if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
36 return sprintf(buf, "%s\n", "multicast router+");
37 else
38 return sprintf(buf, "%s\n", "multicast router");
39 case PRIMARY_CONNECTOR:
40 if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
41 return sprintf(buf, "%s\n", "primary connector+");
42 else
43 return sprintf(buf, "%s\n", "primary connector");
44 case SECONDARY_CONNECTOR:
45 if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
46 return sprintf(buf, "%s\n", "secondary connector+");
47 else
48 return sprintf(buf, "%s\n", "secondary connector");
49 default:
50 return sprintf(buf, "%s\n", "no");
51 }
52}
53
54static ssize_t qeth_l3_dev_route4_show(struct device *dev,
55 struct device_attribute *attr, char *buf)
56{
57 struct qeth_card *card = dev_get_drvdata(dev);
58
59 if (!card)
60 return -EINVAL;
61
62 return qeth_l3_dev_route_show(card, &card->options.route4, buf);
63}
64
65static ssize_t qeth_l3_dev_route_store(struct qeth_card *card,
66 struct qeth_routing_info *route, enum qeth_prot_versions prot,
67 const char *buf, size_t count)
68{
69 enum qeth_routing_types old_route_type = route->type;
70 char *tmp;
71 int rc;
72
73 tmp = strsep((char **) &buf, "\n");
74
75 if (!strcmp(tmp, "no_router")) {
76 route->type = NO_ROUTER;
77 } else if (!strcmp(tmp, "primary_connector")) {
78 route->type = PRIMARY_CONNECTOR;
79 } else if (!strcmp(tmp, "secondary_connector")) {
80 route->type = SECONDARY_CONNECTOR;
81 } else if (!strcmp(tmp, "primary_router")) {
82 route->type = PRIMARY_ROUTER;
83 } else if (!strcmp(tmp, "secondary_router")) {
84 route->type = SECONDARY_ROUTER;
85 } else if (!strcmp(tmp, "multicast_router")) {
86 route->type = MULTICAST_ROUTER;
87 } else {
4a71df50
FB		 88 return -EINVAL;
89 }
90 if (((card->state == CARD_STATE_SOFTSETUP) ||
91 (card->state == CARD_STATE_UP)) &&
92 (old_route_type != route->type)) {
93 if (prot == QETH_PROT_IPV4)
94 rc = qeth_l3_setrouting_v4(card);
95 else if (prot == QETH_PROT_IPV6)
96 rc = qeth_l3_setrouting_v6(card);
97 }
98 return count;
99}
100
101static ssize_t qeth_l3_dev_route4_store(struct device *dev,
102 struct device_attribute *attr, const char *buf, size_t count)
103{
104 struct qeth_card *card = dev_get_drvdata(dev);
105
106 if (!card)
107 return -EINVAL;
108
109 return qeth_l3_dev_route_store(card, &card->options.route4,
110 QETH_PROT_IPV4, buf, count);
111}
112
113static DEVICE_ATTR(route4, 0644, qeth_l3_dev_route4_show,
114 qeth_l3_dev_route4_store);
115
116static ssize_t qeth_l3_dev_route6_show(struct device *dev,
117 struct device_attribute *attr, char *buf)
118{
119 struct qeth_card *card = dev_get_drvdata(dev);
120
121 if (!card)
122 return -EINVAL;
123
4a71df50
FB		 124 return qeth_l3_dev_route_show(card, &card->options.route6, buf);
125}
126
127static ssize_t qeth_l3_dev_route6_store(struct device *dev,
128 struct device_attribute *attr, const char *buf, size_t count)
129{
130 struct qeth_card *card = dev_get_drvdata(dev);
131
132 if (!card)
133 return -EINVAL;
134
4a71df50
FB		 135 return qeth_l3_dev_route_store(card, &card->options.route6,
136 QETH_PROT_IPV6, buf, count);
137}
138
139static DEVICE_ATTR(route6, 0644, qeth_l3_dev_route6_show,
140 qeth_l3_dev_route6_store);
141
142static ssize_t qeth_l3_dev_fake_broadcast_show(struct device *dev,
143 struct device_attribute *attr, char *buf)
144{
145 struct qeth_card *card = dev_get_drvdata(dev);
146
147 if (!card)
148 return -EINVAL;
149
150 return sprintf(buf, "%i\n", card->options.fake_broadcast? 1:0);
151}
152
153static ssize_t qeth_l3_dev_fake_broadcast_store(struct device *dev,
154 struct device_attribute *attr, const char *buf, size_t count)
155{
156 struct qeth_card *card = dev_get_drvdata(dev);
157 char *tmp;
158 int i;
159
160 if (!card)
161 return -EINVAL;
162
163 if ((card->state != CARD_STATE_DOWN) &&
164 (card->state != CARD_STATE_RECOVER))
165 return -EPERM;
166
167 i = simple_strtoul(buf, &tmp, 16);
168 if ((i == 0) || (i == 1))
169 card->options.fake_broadcast = i;
170 else {
4a71df50
FB		 171 return -EINVAL;
172 }
173 return count;
174}
175
176static DEVICE_ATTR(fake_broadcast, 0644, qeth_l3_dev_fake_broadcast_show,
177 qeth_l3_dev_fake_broadcast_store);
178
179static ssize_t qeth_l3_dev_broadcast_mode_show(struct device *dev,
180 struct device_attribute *attr, char *buf)
181{
182 struct qeth_card *card = dev_get_drvdata(dev);
183
184 if (!card)
185 return -EINVAL;
186
187 if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
188 (card->info.link_type == QETH_LINK_TYPE_LANE_TR)))
189 return sprintf(buf, "n/a\n");
190
191 return sprintf(buf, "%s\n", (card->options.broadcast_mode ==
192 QETH_TR_BROADCAST_ALLRINGS)?
193 "all rings":"local");
194}
195
196static ssize_t qeth_l3_dev_broadcast_mode_store(struct device *dev,
197 struct device_attribute *attr, const char *buf, size_t count)
198{
199 struct qeth_card *card = dev_get_drvdata(dev);
200 char *tmp;
201
202 if (!card)
203 return -EINVAL;
204
205 if ((card->state != CARD_STATE_DOWN) &&
206 (card->state != CARD_STATE_RECOVER))
207 return -EPERM;
208
209 if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
210 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) {
4a71df50
FB		 211 return -EINVAL;
212 }
213
214 tmp = strsep((char **) &buf, "\n");
215
216 if (!strcmp(tmp, "local")) {
217 card->options.broadcast_mode = QETH_TR_BROADCAST_LOCAL;
218 return count;
219 } else if (!strcmp(tmp, "all_rings")) {
220 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
221 return count;
222 } else {
4a71df50
FB		 223 return -EINVAL;
224 }
225 return count;
226}
227
228static DEVICE_ATTR(broadcast_mode, 0644, qeth_l3_dev_broadcast_mode_show,
229 qeth_l3_dev_broadcast_mode_store);
230
231static ssize_t qeth_l3_dev_canonical_macaddr_show(struct device *dev,
232 struct device_attribute *attr, char *buf)
233{
234 struct qeth_card *card = dev_get_drvdata(dev);
235
236 if (!card)
237 return -EINVAL;
238
239 if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
240 (card->info.link_type == QETH_LINK_TYPE_LANE_TR)))
241 return sprintf(buf, "n/a\n");
242
243 return sprintf(buf, "%i\n", (card->options.macaddr_mode ==
244 QETH_TR_MACADDR_CANONICAL)? 1:0);
245}
246
247static ssize_t qeth_l3_dev_canonical_macaddr_store(struct device *dev,
248 struct device_attribute *attr, const char *buf, size_t count)
249{
250 struct qeth_card *card = dev_get_drvdata(dev);
251 char *tmp;
252 int i;
253
254 if (!card)
255 return -EINVAL;
256
257 if ((card->state != CARD_STATE_DOWN) &&
258 (card->state != CARD_STATE_RECOVER))
259 return -EPERM;
260
261 if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
262 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) {
4a71df50
FB		 263 return -EINVAL;
264 }
265
266 i = simple_strtoul(buf, &tmp, 16);
267 if ((i == 0) || (i == 1))
268 card->options.macaddr_mode = i?
269 QETH_TR_MACADDR_CANONICAL :
270 QETH_TR_MACADDR_NONCANONICAL;
271 else {
4a71df50
FB		 272 return -EINVAL;
273 }
274 return count;
275}
276
277static DEVICE_ATTR(canonical_macaddr, 0644, qeth_l3_dev_canonical_macaddr_show,
278 qeth_l3_dev_canonical_macaddr_store);
279
280static ssize_t qeth_l3_dev_checksum_show(struct device *dev,
281 struct device_attribute *attr, char *buf)
282{
283 struct qeth_card *card = dev_get_drvdata(dev);
284
285 if (!card)
286 return -EINVAL;
287
288 return sprintf(buf, "%s checksumming\n",
289 qeth_l3_get_checksum_str(card));
290}
291
292static ssize_t qeth_l3_dev_checksum_store(struct device *dev,
293 struct device_attribute *attr, const char *buf, size_t count)
294{
295 struct qeth_card *card = dev_get_drvdata(dev);
296 char *tmp;
297
298 if (!card)
299 return -EINVAL;
300
301 if ((card->state != CARD_STATE_DOWN) &&
302 (card->state != CARD_STATE_RECOVER))
303 return -EPERM;
304
305 tmp = strsep((char **) &buf, "\n");
306 if (!strcmp(tmp, "sw_checksumming"))
307 card->options.checksum_type = SW_CHECKSUMMING;
308 else if (!strcmp(tmp, "hw_checksumming"))
309 card->options.checksum_type = HW_CHECKSUMMING;
310 else if (!strcmp(tmp, "no_checksumming"))
311 card->options.checksum_type = NO_CHECKSUMMING;
312 else {
4a71df50
FB		 313 return -EINVAL;
314 }
315 return count;
316}
317
318static DEVICE_ATTR(checksumming, 0644, qeth_l3_dev_checksum_show,
319 qeth_l3_dev_checksum_store);
320
c3b4a740
FB		 321static ssize_t qeth_l3_dev_large_send_show(struct device *dev,
322 struct device_attribute *attr, char *buf)
323{
324 struct qeth_card *card = dev_get_drvdata(dev);
325
326 if (!card)
327 return -EINVAL;
328
329 switch (card->options.large_send) {
330 case QETH_LARGE_SEND_NO:
331 return sprintf(buf, "%s\n", "no");
332 case QETH_LARGE_SEND_TSO:
333 return sprintf(buf, "%s\n", "TSO");
334 default:
335 return sprintf(buf, "%s\n", "N/A");
336 }
337}
338
339static ssize_t qeth_l3_dev_large_send_store(struct device *dev,
340 struct device_attribute *attr, const char *buf, size_t count)
341{
342 struct qeth_card *card = dev_get_drvdata(dev);
343 enum qeth_large_send_types type;
344 int rc = 0;
345 char *tmp;
346
347 if (!card)
348 return -EINVAL;
349 tmp = strsep((char **) &buf, "\n");
350 if (!strcmp(tmp, "no"))
351 type = QETH_LARGE_SEND_NO;
352 else if (!strcmp(tmp, "TSO"))
353 type = QETH_LARGE_SEND_TSO;
354 else
355 return -EINVAL;
356
357 if (card->options.large_send == type)
358 return count;
359 rc = qeth_l3_set_large_send(card, type);
360 if (rc)
361 return rc;
362 return count;
363}
364
365static DEVICE_ATTR(large_send, 0644, qeth_l3_dev_large_send_show,
366 qeth_l3_dev_large_send_store);
367
4a71df50
FB		 368static struct attribute *qeth_l3_device_attrs[] = {
369 &dev_attr_route4.attr,
370 &dev_attr_route6.attr,
371 &dev_attr_fake_broadcast.attr,
372 &dev_attr_broadcast_mode.attr,
373 &dev_attr_canonical_macaddr.attr,
374 &dev_attr_checksumming.attr,
c3b4a740 375 &dev_attr_large_send.attr,
4a71df50
FB		 376 NULL,
377};
378
379static struct attribute_group qeth_l3_device_attr_group = {
380 .attrs = qeth_l3_device_attrs,
381};
382
383static ssize_t qeth_l3_dev_ipato_enable_show(struct device *dev,
384 struct device_attribute *attr, char *buf)
385{
386 struct qeth_card *card = dev_get_drvdata(dev);
387
388 if (!card)
389 return -EINVAL;
390
391 return sprintf(buf, "%i\n", card->ipato.enabled? 1:0);
392}
393
394static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev,
395 struct device_attribute *attr, const char *buf, size_t count)
396{
397 struct qeth_card *card = dev_get_drvdata(dev);
398 char *tmp;
399
400 if (!card)
401 return -EINVAL;
402
403 if ((card->state != CARD_STATE_DOWN) &&
404 (card->state != CARD_STATE_RECOVER))
405 return -EPERM;
406
407 tmp = strsep((char **) &buf, "\n");
408 if (!strcmp(tmp, "toggle")) {
409 card->ipato.enabled = (card->ipato.enabled)? 0 : 1;
410 } else if (!strcmp(tmp, "1")) {
411 card->ipato.enabled = 1;
412 } else if (!strcmp(tmp, "0")) {
413 card->ipato.enabled = 0;
414 } else {
4a71df50
FB		 415 return -EINVAL;
416 }
417 return count;
418}
419
420static QETH_DEVICE_ATTR(ipato_enable, enable, 0644,
421 qeth_l3_dev_ipato_enable_show,
422 qeth_l3_dev_ipato_enable_store);
423
424static ssize_t qeth_l3_dev_ipato_invert4_show(struct device *dev,
425 struct device_attribute *attr, char *buf)
426{
427 struct qeth_card *card = dev_get_drvdata(dev);
428
429 if (!card)
430 return -EINVAL;
431
432 return sprintf(buf, "%i\n", card->ipato.invert4? 1:0);
433}
434
435static ssize_t qeth_l3_dev_ipato_invert4_store(struct device *dev,
436 struct device_attribute *attr,
437 const char *buf, size_t count)
438{
439 struct qeth_card *card = dev_get_drvdata(dev);
440 char *tmp;
441
442 if (!card)
443 return -EINVAL;
444
445 tmp = strsep((char **) &buf, "\n");
446 if (!strcmp(tmp, "toggle")) {
447 card->ipato.invert4 = (card->ipato.invert4)? 0 : 1;
448 } else if (!strcmp(tmp, "1")) {
449 card->ipato.invert4 = 1;
450 } else if (!strcmp(tmp, "0")) {
451 card->ipato.invert4 = 0;
452 } else {
4a71df50
FB		 453 return -EINVAL;
454 }
455 return count;
456}
457
458static QETH_DEVICE_ATTR(ipato_invert4, invert4, 0644,
459 qeth_l3_dev_ipato_invert4_show,
460 qeth_l3_dev_ipato_invert4_store);
461
462static ssize_t qeth_l3_dev_ipato_add_show(char *buf, struct qeth_card *card,
463 enum qeth_prot_versions proto)
464{
465 struct qeth_ipato_entry *ipatoe;
466 unsigned long flags;
467 char addr_str[40];
468 int entry_len; /* length of 1 entry string, differs between v4 and v6 */
469 int i = 0;
470
471 entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
472 /* add strlen for "/<mask>\n" */
473 entry_len += (proto == QETH_PROT_IPV4)? 5 : 6;
474 spin_lock_irqsave(&card->ip_lock, flags);
475 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
476 if (ipatoe->proto != proto)
477 continue;
478 /* String must not be longer than PAGE_SIZE. So we check if
479 * string length gets near PAGE_SIZE. Then we can savely display
480 * the next IPv6 address (worst case, compared to IPv4) */
481 if ((PAGE_SIZE - i) <= entry_len)
482 break;
483 qeth_l3_ipaddr_to_string(proto, ipatoe->addr, addr_str);
484 i += snprintf(buf + i, PAGE_SIZE - i,
485 "%s/%i\n", addr_str, ipatoe->mask_bits);
486 }
487 spin_unlock_irqrestore(&card->ip_lock, flags);
488 i += snprintf(buf + i, PAGE_SIZE - i, "\n");
489
490 return i;
491}
492
493static ssize_t qeth_l3_dev_ipato_add4_show(struct device *dev,
494 struct device_attribute *attr, char *buf)
495{
496 struct qeth_card *card = dev_get_drvdata(dev);
497
498 if (!card)
499 return -EINVAL;
500
501 return qeth_l3_dev_ipato_add_show(buf, card, QETH_PROT_IPV4);
502}
503
504static int qeth_l3_parse_ipatoe(const char *buf, enum qeth_prot_versions proto,
505 u8 *addr, int *mask_bits)
506{
507 const char *start, *end;
508 char *tmp;
509 char buffer[40] = {0, };
510
511 start = buf;
512 /* get address string */
513 end = strchr(start, '/');
514 if (!end || (end - start >= 40)) {
4a71df50
FB		 515 return -EINVAL;
516 }
517 strncpy(buffer, start, end - start);
518 if (qeth_l3_string_to_ipaddr(buffer, proto, addr)) {
4a71df50
FB		 519 return -EINVAL;
520 }
521 start = end + 1;
522 *mask_bits = simple_strtoul(start, &tmp, 10);
523 if (!strlen(start) ||
524 (tmp == start) ||
525 (*mask_bits > ((proto == QETH_PROT_IPV4) ? 32 : 128))) {
4a71df50
FB		 526 return -EINVAL;
527 }
528 return 0;
529}
530
531static ssize_t qeth_l3_dev_ipato_add_store(const char *buf, size_t count,
532 struct qeth_card *card, enum qeth_prot_versions proto)
533{
534 struct qeth_ipato_entry *ipatoe;
535 u8 addr[16];
536 int mask_bits;
537 int rc;
538
539 rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits);
540 if (rc)
541 return rc;
542
543 ipatoe = kzalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL);
544 if (!ipatoe) {
4a71df50
FB		 545 return -ENOMEM;
546 }
547 ipatoe->proto = proto;
548 memcpy(ipatoe->addr, addr, (proto == QETH_PROT_IPV4)? 4:16);
549 ipatoe->mask_bits = mask_bits;
550
551 rc = qeth_l3_add_ipato_entry(card, ipatoe);
552 if (rc) {
553 kfree(ipatoe);
554 return rc;
555 }
556
557 return count;
558}
559
560static ssize_t qeth_l3_dev_ipato_add4_store(struct device *dev,
561 struct device_attribute *attr, const char *buf, size_t count)
562{
563 struct qeth_card *card = dev_get_drvdata(dev);
564
565 if (!card)
566 return -EINVAL;
567
568 return qeth_l3_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV4);
569}
570
571static QETH_DEVICE_ATTR(ipato_add4, add4, 0644,
572 qeth_l3_dev_ipato_add4_show,
573 qeth_l3_dev_ipato_add4_store);
574
575static ssize_t qeth_l3_dev_ipato_del_store(const char *buf, size_t count,
576 struct qeth_card *card, enum qeth_prot_versions proto)
577{
578 u8 addr[16];
579 int mask_bits;
580 int rc;
581
582 rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits);
583 if (rc)
584 return rc;
585
586 qeth_l3_del_ipato_entry(card, proto, addr, mask_bits);
587
588 return count;
589}
590
591static ssize_t qeth_l3_dev_ipato_del4_store(struct device *dev,
592 struct device_attribute *attr, const char *buf, size_t count)
593{
594 struct qeth_card *card = dev_get_drvdata(dev);
595
596 if (!card)
597 return -EINVAL;
598
599 return qeth_l3_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV4);
600}
601
602static QETH_DEVICE_ATTR(ipato_del4, del4, 0200, NULL,
603 qeth_l3_dev_ipato_del4_store);
604
605static ssize_t qeth_l3_dev_ipato_invert6_show(struct device *dev,
606 struct device_attribute *attr, char *buf)
607{
608 struct qeth_card *card = dev_get_drvdata(dev);
609
610 if (!card)
611 return -EINVAL;
612
613 return sprintf(buf, "%i\n", card->ipato.invert6? 1:0);
614}
615
616static ssize_t qeth_l3_dev_ipato_invert6_store(struct device *dev,
617 struct device_attribute *attr, const char *buf, size_t count)
618{
619 struct qeth_card *card = dev_get_drvdata(dev);
620 char *tmp;
621
622 if (!card)
623 return -EINVAL;
624
625 tmp = strsep((char **) &buf, "\n");
626 if (!strcmp(tmp, "toggle")) {
627 card->ipato.invert6 = (card->ipato.invert6)? 0 : 1;
628 } else if (!strcmp(tmp, "1")) {
629 card->ipato.invert6 = 1;
630 } else if (!strcmp(tmp, "0")) {
631 card->ipato.invert6 = 0;
632 } else {
4a71df50
FB		 633 return -EINVAL;
634 }
635 return count;
636}
637
638static QETH_DEVICE_ATTR(ipato_invert6, invert6, 0644,
639 qeth_l3_dev_ipato_invert6_show,
640 qeth_l3_dev_ipato_invert6_store);
641
642
643static ssize_t qeth_l3_dev_ipato_add6_show(struct device *dev,
644 struct device_attribute *attr, char *buf)
645{
646 struct qeth_card *card = dev_get_drvdata(dev);
647
648 if (!card)
649 return -EINVAL;
650
651 return qeth_l3_dev_ipato_add_show(buf, card, QETH_PROT_IPV6);
652}
653
654static ssize_t qeth_l3_dev_ipato_add6_store(struct device *dev,
655 struct device_attribute *attr, const char *buf, size_t count)
656{
657 struct qeth_card *card = dev_get_drvdata(dev);
658
659 if (!card)
660 return -EINVAL;
661
662 return qeth_l3_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV6);
663}
664
665static QETH_DEVICE_ATTR(ipato_add6, add6, 0644,
666 qeth_l3_dev_ipato_add6_show,
667 qeth_l3_dev_ipato_add6_store);
668
669static ssize_t qeth_l3_dev_ipato_del6_store(struct device *dev,
670 struct device_attribute *attr, const char *buf, size_t count)
671{
672 struct qeth_card *card = dev_get_drvdata(dev);
673
674 if (!card)
675 return -EINVAL;
676
677 return qeth_l3_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV6);
678}
679
680static QETH_DEVICE_ATTR(ipato_del6, del6, 0200, NULL,
681 qeth_l3_dev_ipato_del6_store);
682
683static struct attribute *qeth_ipato_device_attrs[] = {
684 &dev_attr_ipato_enable.attr,
685 &dev_attr_ipato_invert4.attr,
686 &dev_attr_ipato_add4.attr,
687 &dev_attr_ipato_del4.attr,
688 &dev_attr_ipato_invert6.attr,
689 &dev_attr_ipato_add6.attr,
690 &dev_attr_ipato_del6.attr,
691 NULL,
692};
693
694static struct attribute_group qeth_device_ipato_group = {
695 .name = "ipa_takeover",
696 .attrs = qeth_ipato_device_attrs,
697};
698
699static ssize_t qeth_l3_dev_vipa_add_show(char *buf, struct qeth_card *card,
700 enum qeth_prot_versions proto)
701{
702 struct qeth_ipaddr *ipaddr;
703 char addr_str[40];
704 int entry_len; /* length of 1 entry string, differs between v4 and v6 */
705 unsigned long flags;
706 int i = 0;
707
708 entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
709 entry_len += 2; /* \n + terminator */
710 spin_lock_irqsave(&card->ip_lock, flags);
711 list_for_each_entry(ipaddr, &card->ip_list, entry) {
712 if (ipaddr->proto != proto)
713 continue;
714 if (ipaddr->type != QETH_IP_TYPE_VIPA)
715 continue;
716 /* String must not be longer than PAGE_SIZE. So we check if
717 * string length gets near PAGE_SIZE. Then we can savely display
718 * the next IPv6 address (worst case, compared to IPv4) */
719 if ((PAGE_SIZE - i) <= entry_len)
720 break;
721 qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u,
722 addr_str);
723 i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str);
724 }
725 spin_unlock_irqrestore(&card->ip_lock, flags);
726 i += snprintf(buf + i, PAGE_SIZE - i, "\n");
727
728 return i;
729}
730
731static ssize_t qeth_l3_dev_vipa_add4_show(struct device *dev,
732 struct device_attribute *attr, char *buf)
733{
734 struct qeth_card *card = dev_get_drvdata(dev);
735
736 if (!card)
737 return -EINVAL;
738
739 return qeth_l3_dev_vipa_add_show(buf, card, QETH_PROT_IPV4);
740}
741
742static int qeth_l3_parse_vipae(const char *buf, enum qeth_prot_versions proto,
743 u8 *addr)
744{
745 if (qeth_l3_string_to_ipaddr(buf, proto, addr)) {
4a71df50
FB		 746 return -EINVAL;
747 }
748 return 0;
749}
750
751static ssize_t qeth_l3_dev_vipa_add_store(const char *buf, size_t count,
752 struct qeth_card *card, enum qeth_prot_versions proto)
753{
754 u8 addr[16] = {0, };
755 int rc;
756
757 rc = qeth_l3_parse_vipae(buf, proto, addr);
758 if (rc)
759 return rc;
760
761 rc = qeth_l3_add_vipa(card, proto, addr);
762 if (rc)
763 return rc;
764
765 return count;
766}
767
768static ssize_t qeth_l3_dev_vipa_add4_store(struct device *dev,
769 struct device_attribute *attr, const char *buf, size_t count)
770{
771 struct qeth_card *card = dev_get_drvdata(dev);
772
773 if (!card)
774 return -EINVAL;
775
776 return qeth_l3_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV4);
777}
778
779static QETH_DEVICE_ATTR(vipa_add4, add4, 0644,
780 qeth_l3_dev_vipa_add4_show,
781 qeth_l3_dev_vipa_add4_store);
782
783static ssize_t qeth_l3_dev_vipa_del_store(const char *buf, size_t count,
784 struct qeth_card *card, enum qeth_prot_versions proto)
785{
786 u8 addr[16];
787 int rc;
788
789 rc = qeth_l3_parse_vipae(buf, proto, addr);
790 if (rc)
791 return rc;
792
793 qeth_l3_del_vipa(card, proto, addr);
794
795 return count;
796}
797
798static ssize_t qeth_l3_dev_vipa_del4_store(struct device *dev,
799 struct device_attribute *attr, const char *buf, size_t count)
800{
801 struct qeth_card *card = dev_get_drvdata(dev);
802
803 if (!card)
804 return -EINVAL;
805
806 return qeth_l3_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV4);
807}
808
809static QETH_DEVICE_ATTR(vipa_del4, del4, 0200, NULL,
810 qeth_l3_dev_vipa_del4_store);
811
812static ssize_t qeth_l3_dev_vipa_add6_show(struct device *dev,
813 struct device_attribute *attr, char *buf)
814{
815 struct qeth_card *card = dev_get_drvdata(dev);
816
817 if (!card)
818 return -EINVAL;
819
820 return qeth_l3_dev_vipa_add_show(buf, card, QETH_PROT_IPV6);
821}
822
823static ssize_t qeth_l3_dev_vipa_add6_store(struct device *dev,
824 struct device_attribute *attr, const char *buf, size_t count)
825{
826 struct qeth_card *card = dev_get_drvdata(dev);
827
828 if (!card)
829 return -EINVAL;
830
831 return qeth_l3_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV6);
832}
833
834static QETH_DEVICE_ATTR(vipa_add6, add6, 0644,
835 qeth_l3_dev_vipa_add6_show,
836 qeth_l3_dev_vipa_add6_store);
837
838static ssize_t qeth_l3_dev_vipa_del6_store(struct device *dev,
839 struct device_attribute *attr, const char *buf, size_t count)
840{
841 struct qeth_card *card = dev_get_drvdata(dev);
842
843 if (!card)
844 return -EINVAL;
845
846 return qeth_l3_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV6);
847}
848
849static QETH_DEVICE_ATTR(vipa_del6, del6, 0200, NULL,
850 qeth_l3_dev_vipa_del6_store);
851
852static struct attribute *qeth_vipa_device_attrs[] = {
853 &dev_attr_vipa_add4.attr,
854 &dev_attr_vipa_del4.attr,
855 &dev_attr_vipa_add6.attr,
856 &dev_attr_vipa_del6.attr,
857 NULL,
858};
859
860static struct attribute_group qeth_device_vipa_group = {
861 .name = "vipa",
862 .attrs = qeth_vipa_device_attrs,
863};
864
865static ssize_t qeth_l3_dev_rxip_add_show(char *buf, struct qeth_card *card,
866 enum qeth_prot_versions proto)
867{
868 struct qeth_ipaddr *ipaddr;
869 char addr_str[40];
870 int entry_len; /* length of 1 entry string, differs between v4 and v6 */
871 unsigned long flags;
872 int i = 0;
873
874 entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
875 entry_len += 2; /* \n + terminator */
876 spin_lock_irqsave(&card->ip_lock, flags);
877 list_for_each_entry(ipaddr, &card->ip_list, entry) {
878 if (ipaddr->proto != proto)
879 continue;
880 if (ipaddr->type != QETH_IP_TYPE_RXIP)
881 continue;
882 /* String must not be longer than PAGE_SIZE. So we check if
883 * string length gets near PAGE_SIZE. Then we can savely display
884 * the next IPv6 address (worst case, compared to IPv4) */
885 if ((PAGE_SIZE - i) <= entry_len)
886 break;
887 qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u,
888 addr_str);
889 i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str);
890 }
891 spin_unlock_irqrestore(&card->ip_lock, flags);
892 i += snprintf(buf + i, PAGE_SIZE - i, "\n");
893
894 return i;
895}
896
897static ssize_t qeth_l3_dev_rxip_add4_show(struct device *dev,
898 struct device_attribute *attr, char *buf)
899{
900 struct qeth_card *card = dev_get_drvdata(dev);
901
902 if (!card)
903 return -EINVAL;
904
905 return qeth_l3_dev_rxip_add_show(buf, card, QETH_PROT_IPV4);
906}
907
908static int qeth_l3_parse_rxipe(const char *buf, enum qeth_prot_versions proto,
909 u8 *addr)
910{
911 if (qeth_l3_string_to_ipaddr(buf, proto, addr)) {
4a71df50
FB		 912 return -EINVAL;
913 }
914 return 0;
915}
916
917static ssize_t qeth_l3_dev_rxip_add_store(const char *buf, size_t count,
918 struct qeth_card *card, enum qeth_prot_versions proto)
919{
920 u8 addr[16] = {0, };
921 int rc;
922
923 rc = qeth_l3_parse_rxipe(buf, proto, addr);
924 if (rc)
925 return rc;
926
927 rc = qeth_l3_add_rxip(card, proto, addr);
928 if (rc)
929 return rc;
930
931 return count;
932}
933
934static ssize_t qeth_l3_dev_rxip_add4_store(struct device *dev,
935 struct device_attribute *attr, const char *buf, size_t count)
936{
937 struct qeth_card *card = dev_get_drvdata(dev);
938
939 if (!card)
940 return -EINVAL;
941
942 return qeth_l3_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV4);
943}
944
945static QETH_DEVICE_ATTR(rxip_add4, add4, 0644,
946 qeth_l3_dev_rxip_add4_show,
947 qeth_l3_dev_rxip_add4_store);
948
949static ssize_t qeth_l3_dev_rxip_del_store(const char *buf, size_t count,
950 struct qeth_card *card, enum qeth_prot_versions proto)
951{
952 u8 addr[16];
953 int rc;
954
955 rc = qeth_l3_parse_rxipe(buf, proto, addr);
956 if (rc)
957 return rc;
958
959 qeth_l3_del_rxip(card, proto, addr);
960
961 return count;
962}
963
964static ssize_t qeth_l3_dev_rxip_del4_store(struct device *dev,
965 struct device_attribute *attr, const char *buf, size_t count)
966{
967 struct qeth_card *card = dev_get_drvdata(dev);
968
969 if (!card)
970 return -EINVAL;
971
972 return qeth_l3_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV4);
973}
974
975static QETH_DEVICE_ATTR(rxip_del4, del4, 0200, NULL,
976 qeth_l3_dev_rxip_del4_store);
977
978static ssize_t qeth_l3_dev_rxip_add6_show(struct device *dev,
979 struct device_attribute *attr, char *buf)
980{
981 struct qeth_card *card = dev_get_drvdata(dev);
982
983 if (!card)
984 return -EINVAL;
985
986 return qeth_l3_dev_rxip_add_show(buf, card, QETH_PROT_IPV6);
987}
988
989static ssize_t qeth_l3_dev_rxip_add6_store(struct device *dev,
990 struct device_attribute *attr, const char *buf, size_t count)
991{
992 struct qeth_card *card = dev_get_drvdata(dev);
993
994 if (!card)
995 return -EINVAL;
996
997 return qeth_l3_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV6);
998}
999
1000static QETH_DEVICE_ATTR(rxip_add6, add6, 0644,
1001 qeth_l3_dev_rxip_add6_show,
1002 qeth_l3_dev_rxip_add6_store);
1003
1004static ssize_t qeth_l3_dev_rxip_del6_store(struct device *dev,
1005 struct device_attribute *attr, const char *buf, size_t count)
1006{
1007 struct qeth_card *card = dev_get_drvdata(dev);
1008
1009 if (!card)
1010 return -EINVAL;
1011
1012 return qeth_l3_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV6);
1013}
1014
1015static QETH_DEVICE_ATTR(rxip_del6, del6, 0200, NULL,
1016 qeth_l3_dev_rxip_del6_store);
1017
1018static struct attribute *qeth_rxip_device_attrs[] = {
1019 &dev_attr_rxip_add4.attr,
1020 &dev_attr_rxip_del4.attr,
1021 &dev_attr_rxip_add6.attr,
1022 &dev_attr_rxip_del6.attr,
1023 NULL,
1024};
1025
1026static struct attribute_group qeth_device_rxip_group = {
1027 .name = "rxip",
1028 .attrs = qeth_rxip_device_attrs,
1029};
1030
1031int qeth_l3_create_device_attributes(struct device *dev)
1032{
1033 int ret;
1034
1035 ret = sysfs_create_group(&dev->kobj, &qeth_l3_device_attr_group);
1036 if (ret)
1037 return ret;
1038
1039 ret = sysfs_create_group(&dev->kobj, &qeth_device_ipato_group);
1040 if (ret) {
1041 sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
1042 return ret;
1043 }
1044
1045 ret = sysfs_create_group(&dev->kobj, &qeth_device_vipa_group);
1046 if (ret) {
1047 sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
1048 sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
1049 return ret;
1050 }
1051
1052 ret = sysfs_create_group(&dev->kobj, &qeth_device_rxip_group);
1053 if (ret) {
1054 sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
1055 sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
1056 sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group);
1057 return ret;
1058 }
1059 return 0;
1060}
1061
1062void qeth_l3_remove_device_attributes(struct device *dev)
1063{
1064 sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
1065 sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
1066 sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group);
1067 sysfs_remove_group(&dev->kobj, &qeth_device_rxip_group);
1068}
Linux kernel - Deliverables
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