/drivers/s390/net/qeth_l3_main.c
C | 3759 lines | 3251 code | 394 blank | 114 comment | 725 complexity | 0ac3595442969ea8ec7f05d360378290 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
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1/*
2 * drivers/s390/net/qeth_l3_main.c
3 *
4 * Copyright IBM Corp. 2007, 2009
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#define KMSG_COMPONENT "qeth"
12#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
13
14#include <linux/module.h>
15#include <linux/moduleparam.h>
16#include <linux/string.h>
17#include <linux/errno.h>
18#include <linux/kernel.h>
19#include <linux/etherdevice.h>
20#include <linux/mii.h>
21#include <linux/ip.h>
22#include <linux/ipv6.h>
23#include <linux/inetdevice.h>
24#include <linux/igmp.h>
25#include <linux/slab.h>
26
27#include <net/ip.h>
28#include <net/arp.h>
29#include <net/ip6_checksum.h>
30
31#include "qeth_l3.h"
32
33
34static int qeth_l3_set_offline(struct ccwgroup_device *);
35static int qeth_l3_recover(void *);
36static int qeth_l3_stop(struct net_device *);
37static void qeth_l3_set_multicast_list(struct net_device *);
38static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
39static int qeth_l3_register_addr_entry(struct qeth_card *,
40 struct qeth_ipaddr *);
41static int qeth_l3_deregister_addr_entry(struct qeth_card *,
42 struct qeth_ipaddr *);
43static int __qeth_l3_set_online(struct ccwgroup_device *, int);
44static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
45
46static int qeth_l3_isxdigit(char *buf)
47{
48 while (*buf) {
49 if (!isxdigit(*buf++))
50 return 0;
51 }
52 return 1;
53}
54
55void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
56{
57 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
58}
59
60int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
61{
62 int count = 0, rc = 0;
63 int in[4];
64 char c;
65
66 rc = sscanf(buf, "%u.%u.%u.%u%c",
67 &in[0], &in[1], &in[2], &in[3], &c);
68 if (rc != 4 && (rc != 5 || c != '\n'))
69 return -EINVAL;
70 for (count = 0; count < 4; count++) {
71 if (in[count] > 255)
72 return -EINVAL;
73 addr[count] = in[count];
74 }
75 return 0;
76}
77
78void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
79{
80 sprintf(buf, "%pI6", addr);
81}
82
83int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
84{
85 const char *end, *end_tmp, *start;
86 __u16 *in;
87 char num[5];
88 int num2, cnt, out, found, save_cnt;
89 unsigned short in_tmp[8] = {0, };
90
91 cnt = out = found = save_cnt = num2 = 0;
92 end = start = buf;
93 in = (__u16 *) addr;
94 memset(in, 0, 16);
95 while (*end) {
96 end = strchr(start, ':');
97 if (end == NULL) {
98 end = buf + strlen(buf);
99 end_tmp = strchr(start, '\n');
100 if (end_tmp != NULL)
101 end = end_tmp;
102 out = 1;
103 }
104 if ((end - start)) {
105 memset(num, 0, 5);
106 if ((end - start) > 4)
107 return -EINVAL;
108 memcpy(num, start, end - start);
109 if (!qeth_l3_isxdigit(num))
110 return -EINVAL;
111 sscanf(start, "%x", &num2);
112 if (found)
113 in_tmp[save_cnt++] = num2;
114 else
115 in[cnt++] = num2;
116 if (out)
117 break;
118 } else {
119 if (found)
120 return -EINVAL;
121 found = 1;
122 }
123 start = ++end;
124 }
125 if (cnt + save_cnt > 8)
126 return -EINVAL;
127 cnt = 7;
128 while (save_cnt)
129 in[cnt--] = in_tmp[--save_cnt];
130 return 0;
131}
132
133void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
134 char *buf)
135{
136 if (proto == QETH_PROT_IPV4)
137 qeth_l3_ipaddr4_to_string(addr, buf);
138 else if (proto == QETH_PROT_IPV6)
139 qeth_l3_ipaddr6_to_string(addr, buf);
140}
141
142int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
143 __u8 *addr)
144{
145 if (proto == QETH_PROT_IPV4)
146 return qeth_l3_string_to_ipaddr4(buf, addr);
147 else if (proto == QETH_PROT_IPV6)
148 return qeth_l3_string_to_ipaddr6(buf, addr);
149 else
150 return -EINVAL;
151}
152
153static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
154{
155 int i, j;
156 u8 octet;
157
158 for (i = 0; i < len; ++i) {
159 octet = addr[i];
160 for (j = 7; j >= 0; --j) {
161 bits[i*8 + j] = octet & 1;
162 octet >>= 1;
163 }
164 }
165}
166
167int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
168 struct qeth_ipaddr *addr)
169{
170 struct qeth_ipato_entry *ipatoe;
171 u8 addr_bits[128] = {0, };
172 u8 ipatoe_bits[128] = {0, };
173 int rc = 0;
174
175 if (!card->ipato.enabled)
176 return 0;
177
178 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
179 (addr->proto == QETH_PROT_IPV4)? 4:16);
180 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
181 if (addr->proto != ipatoe->proto)
182 continue;
183 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
184 (ipatoe->proto == QETH_PROT_IPV4) ?
185 4 : 16);
186 if (addr->proto == QETH_PROT_IPV4)
187 rc = !memcmp(addr_bits, ipatoe_bits,
188 min(32, ipatoe->mask_bits));
189 else
190 rc = !memcmp(addr_bits, ipatoe_bits,
191 min(128, ipatoe->mask_bits));
192 if (rc)
193 break;
194 }
195 /* invert? */
196 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
197 rc = !rc;
198 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
199 rc = !rc;
200
201 return rc;
202}
203
204/*
205 * Add IP to be added to todo list. If there is already an "add todo"
206 * in this list we just incremenent the reference count.
207 * Returns 0 if we just incremented reference count.
208 */
209static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
210 struct qeth_ipaddr *addr, int add)
211{
212 struct qeth_ipaddr *tmp, *t;
213 int found = 0;
214
215 if (card->options.sniffer)
216 return 0;
217 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
218 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
219 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
220 return 0;
221 if ((tmp->proto == QETH_PROT_IPV4) &&
222 (addr->proto == QETH_PROT_IPV4) &&
223 (tmp->type == addr->type) &&
224 (tmp->is_multicast == addr->is_multicast) &&
225 (tmp->u.a4.addr == addr->u.a4.addr) &&
226 (tmp->u.a4.mask == addr->u.a4.mask)) {
227 found = 1;
228 break;
229 }
230 if ((tmp->proto == QETH_PROT_IPV6) &&
231 (addr->proto == QETH_PROT_IPV6) &&
232 (tmp->type == addr->type) &&
233 (tmp->is_multicast == addr->is_multicast) &&
234 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
235 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
236 sizeof(struct in6_addr)) == 0)) {
237 found = 1;
238 break;
239 }
240 }
241 if (found) {
242 if (addr->users != 0)
243 tmp->users += addr->users;
244 else
245 tmp->users += add ? 1 : -1;
246 if (tmp->users == 0) {
247 list_del(&tmp->entry);
248 kfree(tmp);
249 }
250 return 0;
251 } else {
252 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
253 list_add(&addr->entry, card->ip_tbd_list);
254 else {
255 if (addr->users == 0)
256 addr->users += add ? 1 : -1;
257 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
258 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
259 QETH_CARD_TEXT(card, 2, "tkovaddr");
260 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
261 }
262 list_add_tail(&addr->entry, card->ip_tbd_list);
263 }
264 return 1;
265 }
266}
267
268static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
269{
270 unsigned long flags;
271 int rc = 0;
272
273 QETH_CARD_TEXT(card, 4, "delip");
274
275 if (addr->proto == QETH_PROT_IPV4)
276 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
277 else {
278 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
279 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
280 }
281 spin_lock_irqsave(&card->ip_lock, flags);
282 rc = __qeth_l3_insert_ip_todo(card, addr, 0);
283 spin_unlock_irqrestore(&card->ip_lock, flags);
284 return rc;
285}
286
287static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
288{
289 unsigned long flags;
290 int rc = 0;
291
292 QETH_CARD_TEXT(card, 4, "addip");
293 if (addr->proto == QETH_PROT_IPV4)
294 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
295 else {
296 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
297 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
298 }
299 spin_lock_irqsave(&card->ip_lock, flags);
300 rc = __qeth_l3_insert_ip_todo(card, addr, 1);
301 spin_unlock_irqrestore(&card->ip_lock, flags);
302 return rc;
303}
304
305
306static struct qeth_ipaddr *qeth_l3_get_addr_buffer(
307 enum qeth_prot_versions prot)
308{
309 struct qeth_ipaddr *addr;
310
311 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
312 if (addr == NULL) {
313 return NULL;
314 }
315 addr->type = QETH_IP_TYPE_NORMAL;
316 addr->proto = prot;
317 return addr;
318}
319
320static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
321{
322 struct qeth_ipaddr *iptodo;
323 unsigned long flags;
324
325 QETH_CARD_TEXT(card, 4, "delmc");
326 iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
327 if (!iptodo) {
328 QETH_CARD_TEXT(card, 2, "dmcnomem");
329 return;
330 }
331 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
332 spin_lock_irqsave(&card->ip_lock, flags);
333 if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
334 kfree(iptodo);
335 spin_unlock_irqrestore(&card->ip_lock, flags);
336}
337
338/*
339 * Add/remove address to/from card's ip list, i.e. try to add or remove
340 * reference to/from an IP address that is already registered on the card.
341 * Returns:
342 * 0 address was on card and its reference count has been adjusted,
343 * but is still > 0, so nothing has to be done
344 * also returns 0 if card was not on card and the todo was to delete
345 * the address -> there is also nothing to be done
346 * 1 address was not on card and the todo is to add it to the card's ip
347 * list
348 * -1 address was on card and its reference count has been decremented
349 * to <= 0 by the todo -> address must be removed from card
350 */
351static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
352 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
353{
354 struct qeth_ipaddr *addr;
355 int found = 0;
356
357 list_for_each_entry(addr, &card->ip_list, entry) {
358 if ((addr->proto == QETH_PROT_IPV4) &&
359 (todo->proto == QETH_PROT_IPV4) &&
360 (addr->type == todo->type) &&
361 (addr->u.a4.addr == todo->u.a4.addr) &&
362 (addr->u.a4.mask == todo->u.a4.mask)) {
363 found = 1;
364 break;
365 }
366 if ((addr->proto == QETH_PROT_IPV6) &&
367 (todo->proto == QETH_PROT_IPV6) &&
368 (addr->type == todo->type) &&
369 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
370 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
371 sizeof(struct in6_addr)) == 0)) {
372 found = 1;
373 break;
374 }
375 }
376 if (found) {
377 addr->users += todo->users;
378 if (addr->users <= 0) {
379 *__addr = addr;
380 return -1;
381 } else {
382 /* for VIPA and RXIP limit refcount to 1 */
383 if (addr->type != QETH_IP_TYPE_NORMAL)
384 addr->users = 1;
385 return 0;
386 }
387 }
388 if (todo->users > 0) {
389 /* for VIPA and RXIP limit refcount to 1 */
390 if (todo->type != QETH_IP_TYPE_NORMAL)
391 todo->users = 1;
392 return 1;
393 } else
394 return 0;
395}
396
397static void __qeth_l3_delete_all_mc(struct qeth_card *card,
398 unsigned long *flags)
399{
400 struct list_head fail_list;
401 struct qeth_ipaddr *addr, *tmp;
402 int rc;
403
404 INIT_LIST_HEAD(&fail_list);
405again:
406 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
407 if (addr->is_multicast) {
408 list_del(&addr->entry);
409 spin_unlock_irqrestore(&card->ip_lock, *flags);
410 rc = qeth_l3_deregister_addr_entry(card, addr);
411 spin_lock_irqsave(&card->ip_lock, *flags);
412 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
413 kfree(addr);
414 else
415 list_add_tail(&addr->entry, &fail_list);
416 goto again;
417 }
418 }
419 list_splice(&fail_list, &card->ip_list);
420}
421
422static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
423{
424 struct list_head *tbd_list;
425 struct qeth_ipaddr *todo, *addr;
426 unsigned long flags;
427 int rc;
428
429 QETH_CARD_TEXT(card, 2, "sdiplist");
430 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
431
432 if ((card->state != CARD_STATE_UP &&
433 card->state != CARD_STATE_SOFTSETUP) || card->options.sniffer) {
434 return;
435 }
436
437 spin_lock_irqsave(&card->ip_lock, flags);
438 tbd_list = card->ip_tbd_list;
439 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
440 if (!card->ip_tbd_list) {
441 QETH_CARD_TEXT(card, 0, "silnomem");
442 card->ip_tbd_list = tbd_list;
443 spin_unlock_irqrestore(&card->ip_lock, flags);
444 return;
445 } else
446 INIT_LIST_HEAD(card->ip_tbd_list);
447
448 while (!list_empty(tbd_list)) {
449 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
450 list_del(&todo->entry);
451 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
452 __qeth_l3_delete_all_mc(card, &flags);
453 kfree(todo);
454 continue;
455 }
456 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
457 if (rc == 0) {
458 /* nothing to be done; only adjusted refcount */
459 kfree(todo);
460 } else if (rc == 1) {
461 /* new entry to be added to on-card list */
462 spin_unlock_irqrestore(&card->ip_lock, flags);
463 rc = qeth_l3_register_addr_entry(card, todo);
464 spin_lock_irqsave(&card->ip_lock, flags);
465 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
466 list_add_tail(&todo->entry, &card->ip_list);
467 else
468 kfree(todo);
469 } else if (rc == -1) {
470 /* on-card entry to be removed */
471 list_del_init(&addr->entry);
472 spin_unlock_irqrestore(&card->ip_lock, flags);
473 rc = qeth_l3_deregister_addr_entry(card, addr);
474 spin_lock_irqsave(&card->ip_lock, flags);
475 if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
476 kfree(addr);
477 else
478 list_add_tail(&addr->entry, &card->ip_list);
479 kfree(todo);
480 }
481 }
482 spin_unlock_irqrestore(&card->ip_lock, flags);
483 kfree(tbd_list);
484}
485
486static void qeth_l3_clear_ip_list(struct qeth_card *card, int recover)
487{
488 struct qeth_ipaddr *addr, *tmp;
489 unsigned long flags;
490
491 QETH_CARD_TEXT(card, 4, "clearip");
492 if (recover && card->options.sniffer)
493 return;
494 spin_lock_irqsave(&card->ip_lock, flags);
495 /* clear todo list */
496 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
497 list_del(&addr->entry);
498 kfree(addr);
499 }
500
501 while (!list_empty(&card->ip_list)) {
502 addr = list_entry(card->ip_list.next,
503 struct qeth_ipaddr, entry);
504 list_del_init(&addr->entry);
505 if (!recover || addr->is_multicast) {
506 kfree(addr);
507 continue;
508 }
509 list_add_tail(&addr->entry, card->ip_tbd_list);
510 }
511 spin_unlock_irqrestore(&card->ip_lock, flags);
512}
513
514static int qeth_l3_address_exists_in_list(struct list_head *list,
515 struct qeth_ipaddr *addr, int same_type)
516{
517 struct qeth_ipaddr *tmp;
518
519 list_for_each_entry(tmp, list, entry) {
520 if ((tmp->proto == QETH_PROT_IPV4) &&
521 (addr->proto == QETH_PROT_IPV4) &&
522 ((same_type && (tmp->type == addr->type)) ||
523 (!same_type && (tmp->type != addr->type))) &&
524 (tmp->u.a4.addr == addr->u.a4.addr))
525 return 1;
526
527 if ((tmp->proto == QETH_PROT_IPV6) &&
528 (addr->proto == QETH_PROT_IPV6) &&
529 ((same_type && (tmp->type == addr->type)) ||
530 (!same_type && (tmp->type != addr->type))) &&
531 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
532 sizeof(struct in6_addr)) == 0))
533 return 1;
534
535 }
536 return 0;
537}
538
539static int qeth_l3_send_setdelmc(struct qeth_card *card,
540 struct qeth_ipaddr *addr, int ipacmd)
541{
542 int rc;
543 struct qeth_cmd_buffer *iob;
544 struct qeth_ipa_cmd *cmd;
545
546 QETH_CARD_TEXT(card, 4, "setdelmc");
547
548 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
549 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
550 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
551 if (addr->proto == QETH_PROT_IPV6)
552 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
553 sizeof(struct in6_addr));
554 else
555 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
556
557 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
558
559 return rc;
560}
561
562static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
563{
564 int i, j;
565 for (i = 0; i < 16; i++) {
566 j = (len) - (i * 8);
567 if (j >= 8)
568 netmask[i] = 0xff;
569 else if (j > 0)
570 netmask[i] = (u8)(0xFF00 >> j);
571 else
572 netmask[i] = 0;
573 }
574}
575
576static int qeth_l3_send_setdelip(struct qeth_card *card,
577 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
578{
579 int rc;
580 struct qeth_cmd_buffer *iob;
581 struct qeth_ipa_cmd *cmd;
582 __u8 netmask[16];
583
584 QETH_CARD_TEXT(card, 4, "setdelip");
585 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
586
587 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
588 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
589 if (addr->proto == QETH_PROT_IPV6) {
590 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
591 sizeof(struct in6_addr));
592 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
593 memcpy(cmd->data.setdelip6.mask, netmask,
594 sizeof(struct in6_addr));
595 cmd->data.setdelip6.flags = flags;
596 } else {
597 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
598 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
599 cmd->data.setdelip4.flags = flags;
600 }
601
602 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
603
604 return rc;
605}
606
607static int qeth_l3_send_setrouting(struct qeth_card *card,
608 enum qeth_routing_types type, enum qeth_prot_versions prot)
609{
610 int rc;
611 struct qeth_ipa_cmd *cmd;
612 struct qeth_cmd_buffer *iob;
613
614 QETH_CARD_TEXT(card, 4, "setroutg");
615 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
616 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
617 cmd->data.setrtg.type = (type);
618 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
619
620 return rc;
621}
622
623static void qeth_l3_correct_routing_type(struct qeth_card *card,
624 enum qeth_routing_types *type, enum qeth_prot_versions prot)
625{
626 if (card->info.type == QETH_CARD_TYPE_IQD) {
627 switch (*type) {
628 case NO_ROUTER:
629 case PRIMARY_CONNECTOR:
630 case SECONDARY_CONNECTOR:
631 case MULTICAST_ROUTER:
632 return;
633 default:
634 goto out_inval;
635 }
636 } else {
637 switch (*type) {
638 case NO_ROUTER:
639 case PRIMARY_ROUTER:
640 case SECONDARY_ROUTER:
641 return;
642 case MULTICAST_ROUTER:
643 if (qeth_is_ipafunc_supported(card, prot,
644 IPA_OSA_MC_ROUTER))
645 return;
646 default:
647 goto out_inval;
648 }
649 }
650out_inval:
651 *type = NO_ROUTER;
652}
653
654int qeth_l3_setrouting_v4(struct qeth_card *card)
655{
656 int rc;
657
658 QETH_CARD_TEXT(card, 3, "setrtg4");
659
660 qeth_l3_correct_routing_type(card, &card->options.route4.type,
661 QETH_PROT_IPV4);
662
663 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
664 QETH_PROT_IPV4);
665 if (rc) {
666 card->options.route4.type = NO_ROUTER;
667 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
668 " on %s. Type set to 'no router'.\n", rc,
669 QETH_CARD_IFNAME(card));
670 }
671 return rc;
672}
673
674int qeth_l3_setrouting_v6(struct qeth_card *card)
675{
676 int rc = 0;
677
678 QETH_CARD_TEXT(card, 3, "setrtg6");
679#ifdef CONFIG_QETH_IPV6
680
681 if (!qeth_is_supported(card, IPA_IPV6))
682 return 0;
683 qeth_l3_correct_routing_type(card, &card->options.route6.type,
684 QETH_PROT_IPV6);
685
686 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
687 QETH_PROT_IPV6);
688 if (rc) {
689 card->options.route6.type = NO_ROUTER;
690 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
691 " on %s. Type set to 'no router'.\n", rc,
692 QETH_CARD_IFNAME(card));
693 }
694#endif
695 return rc;
696}
697
698/*
699 * IP address takeover related functions
700 */
701static void qeth_l3_clear_ipato_list(struct qeth_card *card)
702{
703
704 struct qeth_ipato_entry *ipatoe, *tmp;
705 unsigned long flags;
706
707 spin_lock_irqsave(&card->ip_lock, flags);
708 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
709 list_del(&ipatoe->entry);
710 kfree(ipatoe);
711 }
712 spin_unlock_irqrestore(&card->ip_lock, flags);
713}
714
715int qeth_l3_add_ipato_entry(struct qeth_card *card,
716 struct qeth_ipato_entry *new)
717{
718 struct qeth_ipato_entry *ipatoe;
719 unsigned long flags;
720 int rc = 0;
721
722 QETH_CARD_TEXT(card, 2, "addipato");
723 spin_lock_irqsave(&card->ip_lock, flags);
724 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
725 if (ipatoe->proto != new->proto)
726 continue;
727 if (!memcmp(ipatoe->addr, new->addr,
728 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
729 (ipatoe->mask_bits == new->mask_bits)) {
730 rc = -EEXIST;
731 break;
732 }
733 }
734 if (!rc)
735 list_add_tail(&new->entry, &card->ipato.entries);
736
737 spin_unlock_irqrestore(&card->ip_lock, flags);
738 return rc;
739}
740
741void qeth_l3_del_ipato_entry(struct qeth_card *card,
742 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
743{
744 struct qeth_ipato_entry *ipatoe, *tmp;
745 unsigned long flags;
746
747 QETH_CARD_TEXT(card, 2, "delipato");
748 spin_lock_irqsave(&card->ip_lock, flags);
749 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
750 if (ipatoe->proto != proto)
751 continue;
752 if (!memcmp(ipatoe->addr, addr,
753 (proto == QETH_PROT_IPV4)? 4:16) &&
754 (ipatoe->mask_bits == mask_bits)) {
755 list_del(&ipatoe->entry);
756 kfree(ipatoe);
757 }
758 }
759 spin_unlock_irqrestore(&card->ip_lock, flags);
760}
761
762/*
763 * VIPA related functions
764 */
765int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
766 const u8 *addr)
767{
768 struct qeth_ipaddr *ipaddr;
769 unsigned long flags;
770 int rc = 0;
771
772 ipaddr = qeth_l3_get_addr_buffer(proto);
773 if (ipaddr) {
774 if (proto == QETH_PROT_IPV4) {
775 QETH_CARD_TEXT(card, 2, "addvipa4");
776 memcpy(&ipaddr->u.a4.addr, addr, 4);
777 ipaddr->u.a4.mask = 0;
778 } else if (proto == QETH_PROT_IPV6) {
779 QETH_CARD_TEXT(card, 2, "addvipa6");
780 memcpy(&ipaddr->u.a6.addr, addr, 16);
781 ipaddr->u.a6.pfxlen = 0;
782 }
783 ipaddr->type = QETH_IP_TYPE_VIPA;
784 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
785 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
786 } else
787 return -ENOMEM;
788 spin_lock_irqsave(&card->ip_lock, flags);
789 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
790 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
791 rc = -EEXIST;
792 spin_unlock_irqrestore(&card->ip_lock, flags);
793 if (rc) {
794 return rc;
795 }
796 if (!qeth_l3_add_ip(card, ipaddr))
797 kfree(ipaddr);
798 qeth_l3_set_ip_addr_list(card);
799 return rc;
800}
801
802void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
803 const u8 *addr)
804{
805 struct qeth_ipaddr *ipaddr;
806
807 ipaddr = qeth_l3_get_addr_buffer(proto);
808 if (ipaddr) {
809 if (proto == QETH_PROT_IPV4) {
810 QETH_CARD_TEXT(card, 2, "delvipa4");
811 memcpy(&ipaddr->u.a4.addr, addr, 4);
812 ipaddr->u.a4.mask = 0;
813 } else if (proto == QETH_PROT_IPV6) {
814 QETH_CARD_TEXT(card, 2, "delvipa6");
815 memcpy(&ipaddr->u.a6.addr, addr, 16);
816 ipaddr->u.a6.pfxlen = 0;
817 }
818 ipaddr->type = QETH_IP_TYPE_VIPA;
819 } else
820 return;
821 if (!qeth_l3_delete_ip(card, ipaddr))
822 kfree(ipaddr);
823 qeth_l3_set_ip_addr_list(card);
824}
825
826/*
827 * proxy ARP related functions
828 */
829int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
830 const u8 *addr)
831{
832 struct qeth_ipaddr *ipaddr;
833 unsigned long flags;
834 int rc = 0;
835
836 ipaddr = qeth_l3_get_addr_buffer(proto);
837 if (ipaddr) {
838 if (proto == QETH_PROT_IPV4) {
839 QETH_CARD_TEXT(card, 2, "addrxip4");
840 memcpy(&ipaddr->u.a4.addr, addr, 4);
841 ipaddr->u.a4.mask = 0;
842 } else if (proto == QETH_PROT_IPV6) {
843 QETH_CARD_TEXT(card, 2, "addrxip6");
844 memcpy(&ipaddr->u.a6.addr, addr, 16);
845 ipaddr->u.a6.pfxlen = 0;
846 }
847 ipaddr->type = QETH_IP_TYPE_RXIP;
848 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
849 ipaddr->del_flags = 0;
850 } else
851 return -ENOMEM;
852 spin_lock_irqsave(&card->ip_lock, flags);
853 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
854 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
855 rc = -EEXIST;
856 spin_unlock_irqrestore(&card->ip_lock, flags);
857 if (rc) {
858 return rc;
859 }
860 if (!qeth_l3_add_ip(card, ipaddr))
861 kfree(ipaddr);
862 qeth_l3_set_ip_addr_list(card);
863 return 0;
864}
865
866void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
867 const u8 *addr)
868{
869 struct qeth_ipaddr *ipaddr;
870
871 ipaddr = qeth_l3_get_addr_buffer(proto);
872 if (ipaddr) {
873 if (proto == QETH_PROT_IPV4) {
874 QETH_CARD_TEXT(card, 2, "addrxip4");
875 memcpy(&ipaddr->u.a4.addr, addr, 4);
876 ipaddr->u.a4.mask = 0;
877 } else if (proto == QETH_PROT_IPV6) {
878 QETH_CARD_TEXT(card, 2, "addrxip6");
879 memcpy(&ipaddr->u.a6.addr, addr, 16);
880 ipaddr->u.a6.pfxlen = 0;
881 }
882 ipaddr->type = QETH_IP_TYPE_RXIP;
883 } else
884 return;
885 if (!qeth_l3_delete_ip(card, ipaddr))
886 kfree(ipaddr);
887 qeth_l3_set_ip_addr_list(card);
888}
889
890static int qeth_l3_register_addr_entry(struct qeth_card *card,
891 struct qeth_ipaddr *addr)
892{
893 char buf[50];
894 int rc = 0;
895 int cnt = 3;
896
897 if (addr->proto == QETH_PROT_IPV4) {
898 QETH_CARD_TEXT(card, 2, "setaddr4");
899 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
900 } else if (addr->proto == QETH_PROT_IPV6) {
901 QETH_CARD_TEXT(card, 2, "setaddr6");
902 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
903 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
904 } else {
905 QETH_CARD_TEXT(card, 2, "setaddr?");
906 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
907 }
908 do {
909 if (addr->is_multicast)
910 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
911 else
912 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
913 addr->set_flags);
914 if (rc)
915 QETH_CARD_TEXT(card, 2, "failed");
916 } while ((--cnt > 0) && rc);
917 if (rc) {
918 QETH_CARD_TEXT(card, 2, "FAILED");
919 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
920 dev_warn(&card->gdev->dev,
921 "Registering IP address %s failed\n", buf);
922 }
923 return rc;
924}
925
926static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
927 struct qeth_ipaddr *addr)
928{
929 int rc = 0;
930
931 if (addr->proto == QETH_PROT_IPV4) {
932 QETH_CARD_TEXT(card, 2, "deladdr4");
933 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
934 } else if (addr->proto == QETH_PROT_IPV6) {
935 QETH_CARD_TEXT(card, 2, "deladdr6");
936 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
937 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
938 } else {
939 QETH_CARD_TEXT(card, 2, "deladdr?");
940 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
941 }
942 if (addr->is_multicast)
943 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
944 else
945 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
946 addr->del_flags);
947 if (rc)
948 QETH_CARD_TEXT(card, 2, "failed");
949
950 return rc;
951}
952
953static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
954{
955 if (cast_type == RTN_MULTICAST)
956 return QETH_CAST_MULTICAST;
957 if (cast_type == RTN_BROADCAST)
958 return QETH_CAST_BROADCAST;
959 return QETH_CAST_UNICAST;
960}
961
962static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
963{
964 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
965 if (cast_type == RTN_MULTICAST)
966 return ct | QETH_CAST_MULTICAST;
967 if (cast_type == RTN_ANYCAST)
968 return ct | QETH_CAST_ANYCAST;
969 if (cast_type == RTN_BROADCAST)
970 return ct | QETH_CAST_BROADCAST;
971 return ct | QETH_CAST_UNICAST;
972}
973
974static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
975 __u32 mode)
976{
977 int rc;
978 struct qeth_cmd_buffer *iob;
979 struct qeth_ipa_cmd *cmd;
980
981 QETH_CARD_TEXT(card, 4, "adpmode");
982
983 iob = qeth_get_adapter_cmd(card, command,
984 sizeof(struct qeth_ipacmd_setadpparms));
985 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
986 cmd->data.setadapterparms.data.mode = mode;
987 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
988 NULL);
989 return rc;
990}
991
992static int qeth_l3_setadapter_hstr(struct qeth_card *card)
993{
994 int rc;
995
996 QETH_CARD_TEXT(card, 4, "adphstr");
997
998 if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
999 rc = qeth_l3_send_setadp_mode(card,
1000 IPA_SETADP_SET_BROADCAST_MODE,
1001 card->options.broadcast_mode);
1002 if (rc)
1003 QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
1004 "device %s: x%x\n",
1005 CARD_BUS_ID(card), rc);
1006 rc = qeth_l3_send_setadp_mode(card,
1007 IPA_SETADP_ALTER_MAC_ADDRESS,
1008 card->options.macaddr_mode);
1009 if (rc)
1010 QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
1011 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1012 return rc;
1013 }
1014 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
1015 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1016 "to set broadcast mode, using ALLRINGS "
1017 "on device %s:\n", CARD_BUS_ID(card));
1018 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
1019 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1020 "to set macaddr mode, using NONCANONICAL "
1021 "on device %s:\n", CARD_BUS_ID(card));
1022 return 0;
1023}
1024
1025static int qeth_l3_setadapter_parms(struct qeth_card *card)
1026{
1027 int rc;
1028
1029 QETH_DBF_TEXT(SETUP, 2, "setadprm");
1030
1031 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
1032 dev_info(&card->gdev->dev,
1033 "set adapter parameters not supported.\n");
1034 QETH_DBF_TEXT(SETUP, 2, " notsupp");
1035 return 0;
1036 }
1037 rc = qeth_query_setadapterparms(card);
1038 if (rc) {
1039 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
1040 "0x%x\n", dev_name(&card->gdev->dev), rc);
1041 return rc;
1042 }
1043 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1044 rc = qeth_setadpparms_change_macaddr(card);
1045 if (rc)
1046 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
1047 " address failed\n");
1048 }
1049
1050 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1051 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1052 rc = qeth_l3_setadapter_hstr(card);
1053
1054 return rc;
1055}
1056
1057static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1058 struct qeth_reply *reply, unsigned long data)
1059{
1060 struct qeth_ipa_cmd *cmd;
1061
1062 QETH_CARD_TEXT(card, 4, "defadpcb");
1063
1064 cmd = (struct qeth_ipa_cmd *) data;
1065 if (cmd->hdr.return_code == 0) {
1066 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1067 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1068 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1069 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1070 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1071 }
1072 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1073 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1074 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
1075 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
1076 }
1077 if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1078 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1079 card->info.tx_csum_mask =
1080 cmd->data.setassparms.data.flags_32bit;
1081 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
1082 }
1083
1084 return 0;
1085}
1086
1087static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1088 struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1089 __u16 len, enum qeth_prot_versions prot)
1090{
1091 struct qeth_cmd_buffer *iob;
1092 struct qeth_ipa_cmd *cmd;
1093
1094 QETH_CARD_TEXT(card, 4, "getasscm");
1095 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1096
1097 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1098 cmd->data.setassparms.hdr.assist_no = ipa_func;
1099 cmd->data.setassparms.hdr.length = 8 + len;
1100 cmd->data.setassparms.hdr.command_code = cmd_code;
1101 cmd->data.setassparms.hdr.return_code = 0;
1102 cmd->data.setassparms.hdr.seq_no = 0;
1103
1104 return iob;
1105}
1106
1107static int qeth_l3_send_setassparms(struct qeth_card *card,
1108 struct qeth_cmd_buffer *iob, __u16 len, long data,
1109 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1110 unsigned long),
1111 void *reply_param)
1112{
1113 int rc;
1114 struct qeth_ipa_cmd *cmd;
1115
1116 QETH_CARD_TEXT(card, 4, "sendassp");
1117
1118 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1119 if (len <= sizeof(__u32))
1120 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1121 else /* (len > sizeof(__u32)) */
1122 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1123
1124 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1125 return rc;
1126}
1127
1128#ifdef CONFIG_QETH_IPV6
1129static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1130 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1131{
1132 int rc;
1133 struct qeth_cmd_buffer *iob;
1134
1135 QETH_CARD_TEXT(card, 4, "simassp6");
1136 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1137 0, QETH_PROT_IPV6);
1138 rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1139 qeth_l3_default_setassparms_cb, NULL);
1140 return rc;
1141}
1142#endif
1143
1144static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1145 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1146{
1147 int rc;
1148 int length = 0;
1149 struct qeth_cmd_buffer *iob;
1150
1151 QETH_CARD_TEXT(card, 4, "simassp4");
1152 if (data)
1153 length = sizeof(__u32);
1154 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1155 length, QETH_PROT_IPV4);
1156 rc = qeth_l3_send_setassparms(card, iob, length, data,
1157 qeth_l3_default_setassparms_cb, NULL);
1158 return rc;
1159}
1160
1161static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1162{
1163 int rc;
1164
1165 QETH_CARD_TEXT(card, 3, "ipaarp");
1166
1167 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
1168 dev_info(&card->gdev->dev,
1169 "ARP processing not supported on %s!\n",
1170 QETH_CARD_IFNAME(card));
1171 return 0;
1172 }
1173 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1174 IPA_CMD_ASS_START, 0);
1175 if (rc) {
1176 dev_warn(&card->gdev->dev,
1177 "Starting ARP processing support for %s failed\n",
1178 QETH_CARD_IFNAME(card));
1179 }
1180 return rc;
1181}
1182
1183static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1184{
1185 int rc;
1186
1187 QETH_CARD_TEXT(card, 3, "ipaipfrg");
1188
1189 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
1190 dev_info(&card->gdev->dev,
1191 "Hardware IP fragmentation not supported on %s\n",
1192 QETH_CARD_IFNAME(card));
1193 return -EOPNOTSUPP;
1194 }
1195
1196 rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1197 IPA_CMD_ASS_START, 0);
1198 if (rc) {
1199 dev_warn(&card->gdev->dev,
1200 "Starting IP fragmentation support for %s failed\n",
1201 QETH_CARD_IFNAME(card));
1202 } else
1203 dev_info(&card->gdev->dev,
1204 "Hardware IP fragmentation enabled \n");
1205 return rc;
1206}
1207
1208static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1209{
1210 int rc;
1211
1212 QETH_CARD_TEXT(card, 3, "stsrcmac");
1213
1214 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1215 dev_info(&card->gdev->dev,
1216 "Inbound source MAC-address not supported on %s\n",
1217 QETH_CARD_IFNAME(card));
1218 return -EOPNOTSUPP;
1219 }
1220
1221 rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1222 IPA_CMD_ASS_START, 0);
1223 if (rc)
1224 dev_warn(&card->gdev->dev,
1225 "Starting source MAC-address support for %s failed\n",
1226 QETH_CARD_IFNAME(card));
1227 return rc;
1228}
1229
1230static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1231{
1232 int rc = 0;
1233
1234 QETH_CARD_TEXT(card, 3, "strtvlan");
1235
1236 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1237 dev_info(&card->gdev->dev,
1238 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1239 return -EOPNOTSUPP;
1240 }
1241
1242 rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1243 IPA_CMD_ASS_START, 0);
1244 if (rc) {
1245 dev_warn(&card->gdev->dev,
1246 "Starting VLAN support for %s failed\n",
1247 QETH_CARD_IFNAME(card));
1248 } else {
1249 dev_info(&card->gdev->dev, "VLAN enabled\n");
1250 }
1251 return rc;
1252}
1253
1254static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1255{
1256 int rc;
1257
1258 QETH_CARD_TEXT(card, 3, "stmcast");
1259
1260 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1261 dev_info(&card->gdev->dev,
1262 "Multicast not supported on %s\n",
1263 QETH_CARD_IFNAME(card));
1264 return -EOPNOTSUPP;
1265 }
1266
1267 rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1268 IPA_CMD_ASS_START, 0);
1269 if (rc) {
1270 dev_warn(&card->gdev->dev,
1271 "Starting multicast support for %s failed\n",
1272 QETH_CARD_IFNAME(card));
1273 } else {
1274 dev_info(&card->gdev->dev, "Multicast enabled\n");
1275 card->dev->flags |= IFF_MULTICAST;
1276 }
1277 return rc;
1278}
1279
1280#ifdef CONFIG_QETH_IPV6
1281static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1282{
1283 int rc;
1284
1285 QETH_CARD_TEXT(card, 3, "softipv6");
1286
1287 if (card->info.type == QETH_CARD_TYPE_IQD)
1288 goto out;
1289
1290 rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
1291 if (rc) {
1292 dev_err(&card->gdev->dev,
1293 "Activating IPv6 support for %s failed\n",
1294 QETH_CARD_IFNAME(card));
1295 return rc;
1296 }
1297 rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1298 IPA_CMD_ASS_START, 3);
1299 if (rc) {
1300 dev_err(&card->gdev->dev,
1301 "Activating IPv6 support for %s failed\n",
1302 QETH_CARD_IFNAME(card));
1303 return rc;
1304 }
1305 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1306 IPA_CMD_ASS_START);
1307 if (rc) {
1308 dev_err(&card->gdev->dev,
1309 "Activating IPv6 support for %s failed\n",
1310 QETH_CARD_IFNAME(card));
1311 return rc;
1312 }
1313 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1314 IPA_CMD_ASS_START);
1315 if (rc) {
1316 dev_warn(&card->gdev->dev,
1317 "Enabling the passthrough mode for %s failed\n",
1318 QETH_CARD_IFNAME(card));
1319 return rc;
1320 }
1321out:
1322 dev_info(&card->gdev->dev, "IPV6 enabled\n");
1323 return 0;
1324}
1325#endif
1326
1327static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1328{
1329 int rc = 0;
1330
1331 QETH_CARD_TEXT(card, 3, "strtipv6");
1332
1333 if (!qeth_is_supported(card, IPA_IPV6)) {
1334 dev_info(&card->gdev->dev,
1335 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1336 return 0;
1337 }
1338#ifdef CONFIG_QETH_IPV6
1339 rc = qeth_l3_softsetup_ipv6(card);
1340#endif
1341 return rc ;
1342}
1343
1344static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1345{
1346 int rc;
1347
1348 QETH_CARD_TEXT(card, 3, "stbrdcst");
1349 card->info.broadcast_capable = 0;
1350 if (!qeth_is_supported(card, IPA_FILTERING)) {
1351 dev_info(&card->gdev->dev,
1352 "Broadcast not supported on %s\n",
1353 QETH_CARD_IFNAME(card));
1354 rc = -EOPNOTSUPP;
1355 goto out;
1356 }
1357 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1358 IPA_CMD_ASS_START, 0);
1359 if (rc) {
1360 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1361 "%s failed\n", QETH_CARD_IFNAME(card));
1362 goto out;
1363 }
1364
1365 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1366 IPA_CMD_ASS_CONFIGURE, 1);
1367 if (rc) {
1368 dev_warn(&card->gdev->dev,
1369 "Setting up broadcast filtering for %s failed\n",
1370 QETH_CARD_IFNAME(card));
1371 goto out;
1372 }
1373 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1374 dev_info(&card->gdev->dev, "Broadcast enabled\n");
1375 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1376 IPA_CMD_ASS_ENABLE, 1);
1377 if (rc) {
1378 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1379 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1380 goto out;
1381 }
1382 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1383out:
1384 if (card->info.broadcast_capable)
1385 card->dev->flags |= IFF_BROADCAST;
1386 else
1387 card->dev->flags &= ~IFF_BROADCAST;
1388 return rc;
1389}
1390
1391static int qeth_l3_send_checksum_command(struct qeth_card *card)
1392{
1393 int rc;
1394
1395 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1396 IPA_CMD_ASS_START, 0);
1397 if (rc) {
1398 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1399 "failed, using SW checksumming\n",
1400 QETH_CARD_IFNAME(card));
1401 return rc;
1402 }
1403 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1404 IPA_CMD_ASS_ENABLE,
1405 card->info.csum_mask);
1406 if (rc) {
1407 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1408 "failed, using SW checksumming\n",
1409 QETH_CARD_IFNAME(card));
1410 return rc;
1411 }
1412 return 0;
1413}
1414
1415int qeth_l3_set_rx_csum(struct qeth_card *card, int on)
1416{
1417 int rc = 0;
1418
1419 if (on) {
1420 rc = qeth_l3_send_checksum_command(card);
1421 if (rc)
1422 return -EIO;
1423 dev_info(&card->gdev->dev,
1424 "HW Checksumming (inbound) enabled\n");
1425 } else {
1426 rc = qeth_l3_send_simple_setassparms(card,
1427 IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
1428 if (rc)
1429 return -EIO;
1430 }
1431
1432 return 0;
1433}
1434
1435static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1436{
1437 QETH_CARD_TEXT(card, 3, "strtcsum");
1438
1439 if (card->dev->features & NETIF_F_RXCSUM) {
1440 rtnl_lock();
1441 /* force set_features call */
1442 card->dev->features &= ~NETIF_F_RXCSUM;
1443 netdev_update_features(card->dev);
1444 rtnl_unlock();
1445 }
1446 return 0;
1447}
1448
1449static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1450{
1451 int rc = 0;
1452
1453 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1454 return rc;
1455 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1456 IPA_CMD_ASS_START, 0);
1457 if (rc)
1458 goto err_out;
1459 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1460 IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
1461 if (rc)
1462 goto err_out;
1463 dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
1464 return rc;
1465err_out:
1466 dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
1467 "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
1468 return rc;
1469}
1470
1471static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1472{
1473 int rc;
1474
1475 QETH_CARD_TEXT(card, 3, "sttso");
1476
1477 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1478 dev_info(&card->gdev->dev,
1479 "Outbound TSO not supported on %s\n",
1480 QETH_CARD_IFNAME(card));
1481 rc = -EOPNOTSUPP;
1482 } else {
1483 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1484 IPA_CMD_ASS_START, 0);
1485 if (rc)
1486 dev_warn(&card->gdev->dev, "Starting outbound TCP "
1487 "segmentation offload for %s failed\n",
1488 QETH_CARD_IFNAME(card));
1489 else
1490 dev_info(&card->gdev->dev,
1491 "Outbound TSO enabled\n");
1492 }
1493 if (rc)
1494 card->dev->features &= ~NETIF_F_TSO;
1495 return rc;
1496}
1497
1498static int qeth_l3_start_ipassists(struct qeth_card *card)
1499{
1500 QETH_CARD_TEXT(card, 3, "strtipas");
1501
1502 qeth_set_access_ctrl_online(card); /* go on*/
1503 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1504 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1505 qeth_l3_start_ipa_source_mac(card); /* go on*/
1506 qeth_l3_start_ipa_vlan(card); /* go on*/
1507 qeth_l3_start_ipa_multicast(card); /* go on*/
1508 qeth_l3_start_ipa_ipv6(card); /* go on*/
1509 qeth_l3_start_ipa_broadcast(card); /* go on*/
1510 qeth_l3_start_ipa_checksum(card); /* go on*/
1511 qeth_l3_start_ipa_tx_checksum(card);
1512 qeth_l3_start_ipa_tso(card); /* go on*/
1513 return 0;
1514}
1515
1516static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1517 struct qeth_reply *reply, unsigned long data)
1518{
1519 struct qeth_ipa_cmd *cmd;
1520
1521 cmd = (struct qeth_ipa_cmd *) data;
1522 if (cmd->hdr.return_code == 0)
1523 memcpy(card->dev->dev_addr,
1524 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1525 else
1526 random_ether_addr(card->dev->dev_addr);
1527
1528 return 0;
1529}
1530
1531static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1532{
1533 int rc = 0;
1534 struct qeth_cmd_buffer *iob;
1535 struct qeth_ipa_cmd *cmd;
1536
1537 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1538
1539 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1540 QETH_PROT_IPV6);
1541 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1542 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1543 card->info.unique_id;
1544
1545 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1546 NULL);
1547 return rc;
1548}
1549
1550static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1551 struct qeth_reply *reply, unsigned long data)
1552{
1553 struct qeth_ipa_cmd *cmd;
1554
1555 cmd = (struct qeth_ipa_cmd *) data;
1556 if (cmd->hdr.return_code == 0)
1557 card->info.unique_id = *((__u16 *)
1558 &cmd->data.create_destroy_addr.unique_id[6]);
1559 else {
1560 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1561 UNIQUE_ID_NOT_BY_CARD;
1562 dev_warn(&card->gdev->dev, "The network adapter failed to "
1563 "generate a unique ID\n");
1564 }
1565 return 0;
1566}
1567
1568static int qeth_l3_get_unique_id(struct qeth_card *card)
1569{
1570 int rc = 0;
1571 struct qeth_cmd_buffer *iob;
1572 struct qeth_ipa_cmd *cmd;
1573
1574 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1575
1576 if (!qeth_is_supported(card, IPA_IPV6)) {
1577 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1578 UNIQUE_ID_NOT_BY_CARD;
1579 return 0;
1580 }
1581
1582 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1583 QETH_PROT_IPV6);
1584 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1585 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1586 card->info.unique_id;
1587
1588 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1589 return rc;
1590}
1591
1592static int
1593qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1594 unsigned long data)
1595{
1596 struct qeth_ipa_cmd *cmd;
1597 __u16 rc;
1598
1599 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1600
1601 cmd = (struct qeth_ipa_cmd *)data;
1602 rc = cmd->hdr.return_code;
1603 if (rc)
1604 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1605 switch (cmd->data.diagass.action) {
1606 case QETH_DIAGS_CMD_TRACE_QUERY:
1607 break;
1608 case QETH_DIAGS_CMD_TRACE_DISABLE:
1609 switch (rc) {
1610 case 0:
1611 case IPA_RC_INVALID_SUBCMD:
1612 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1613 dev_info(&card->gdev->dev, "The HiperSockets network "
1614 "traffic analyzer is deactivated\n");
1615 break;
1616 default:
1617 break;
1618 }
1619 break;
1620 case QETH_DIAGS_CMD_TRACE_ENABLE:
1621 switch (rc) {
1622 case 0:
1623 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1624 dev_info(&card->gdev->dev, "The HiperSockets network "
1625 "traffic analyzer is activated\n");
1626 break;
1627 case IPA_RC_HARDWARE_AUTH_ERROR:
1628 dev_warn(&card->gdev->dev, "The device is not "
1629 "authorized to run as a HiperSockets network "
1630 "traffic analyzer\n");
1631 break;
1632 case IPA_RC_TRACE_ALREADY_ACTIVE:
1633 dev_warn(&card->gdev->dev, "A HiperSockets "
1634 "network traffic analyzer is already "
1635 "active in the HiperSockets LAN\n");
1636 break;
1637 default:
1638 break;
1639 }
1640 break;
1641 default:
1642 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1643 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1644 }
1645
1646 return 0;
1647}
1648
1649static int
1650qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1651{
1652 struct qeth_cmd_buffer *iob;
1653 struct qeth_ipa_cmd *cmd;
1654
1655 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1656
1657 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1658 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1659 cmd->data.diagass.subcmd_len = 16;
1660 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1661 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1662 cmd->data.diagass.action = diags_cmd;
1663 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1664}
1665
1666static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1667 struct net_device *dev)
1668{
1669 if (dev->type == ARPHRD_IEEE802_TR)
1670 ip_tr_mc_map(ipm, mac);
1671 else
1672 ip_eth_mc_map(ipm, mac);
1673}
1674
1675static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1676{
1677 struct qeth_ipaddr *ipm;
1678 struct ip_mc_list *im4;
1679 char buf[MAX_ADDR_LEN];
1680
1681 QETH_CARD_TEXT(card, 4, "addmc");
1682 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1683 im4 = rcu_dereference(im4->next_rcu)) {
1684 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1685 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1686 if (!ipm)
1687 continue;
1688 ipm->u.a4.addr = im4->multiaddr;
1689 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1690 ipm->is_multicast = 1;
1691 if (!qeth_l3_add_ip(card, ipm))
1692 kfree(ipm);
1693 }
1694}
1695
1696static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1697{
1698 struct in_device *in_dev;
1699 struct vlan_group *vg;
1700 int i;
1701
1702 QETH_CARD_TEXT(card, 4, "addmcvl");
1703 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1704 return;
1705
1706 vg = card->vlangrp;
1707 for (i = 0; i < VLAN_N_VID; i++) {
1708 struct net_device *netdev = vlan_group_get_device(vg, i);
1709 if (netdev == NULL ||
1710 !(netdev->flags & IFF_UP))
1711 continue;
1712 in_dev = in_dev_get(netdev);
1713 if (!in_dev)
1714 continue;
1715 rcu_read_lock();
1716 qeth_l3_add_mc(card, in_dev);
1717 rcu_read_unlock();
1718 in_dev_put(in_dev);
1719 }
1720}
1721
1722static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1723{
1724 struct in_device *in4_dev;
1725
1726 QETH_CARD_TEXT(card, 4, "chkmcv4");
1727 in4_dev = in_dev_get(card->dev);
1728 if (in4_dev == NULL)
1729 return;
1730 rcu_read_lock();
1731 qeth_l3_add_mc(card, in4_dev);
1732 qeth_l3_add_vlan_mc(card);
1733 rcu_read_unlock();
1734 in_dev_put(in4_dev);
1735}
1736
1737#ifdef CONFIG_QETH_IPV6
1738static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1739{
1740 struct qeth_ipaddr *ipm;
1741 struct ifmcaddr6 *im6;
1742 char buf[MAX_ADDR_LEN];
1743
1744 QETH_CARD_TEXT(card, 4, "addmc6");
1745 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1746 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1747 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1748 if (!ipm)
1749 continue;
1750 ipm->is_multicast = 1;
1751 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1752 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1753 sizeof(struct in6_addr));
1754 if (!qeth_l3_add_ip(card, ipm))
1755 kfree(ipm);
1756 }
1757}
1758
1759static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1760{
1761 struct inet6_dev *in_dev;
1762 struct vlan_group *vg;
1763 int i;
1764
1765 QETH_CARD_TEXT(card, 4, "admc6vl");
1766 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1767 return;
1768
1769 vg = card->vlangrp;
1770 for (i = 0; i < VLAN_N_VID; i++) {
1771 struct net_device *netdev = vlan_group_get_device(vg, i);
1772 if (netdev == NULL ||
1773 !(netdev->flags & IFF_UP))
1774 continue;
1775 in_dev = in6_dev_get(netdev);
1776 if (!in_dev)
1777 continue;
1778 read_lock_bh(&in_dev->lock);
1779 qeth_l3_add_mc6(card, in_dev);
1780 read_unlock_bh(&in_dev->lock);
1781 in6_dev_put(in_dev);
1782 }
1783}
1784
1785static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1786{
1787 struct inet6_dev *in6_dev;
1788
1789 QETH_CARD_TEXT(card, 4, "chkmcv6");
1790 if (!qeth_is_supported(card, IPA_IPV6))
1791 return ;
1792 in6_dev = in6_dev_get(card->dev);
1793 if (in6_dev == NULL)
1794 return;
1795 read_lock_bh(&in6_dev->lock);
1796 qeth_l3_add_mc6(card, in6_dev);
1797 qeth_l3_add_vlan_mc6(card);
1798 read_unlock_bh(&in6_dev->lock);
1799 in6_dev_put(in6_dev);
1800}
1801#endif /* CONFIG_QETH_IPV6 */
1802
1803static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1804 unsigned short vid)
1805{
1806 struct in_device *in_dev;
1807 struct in_ifaddr *ifa;
1808 struct qeth_ipaddr *addr;
1809
1810 QETH_CARD_TEXT(card, 4, "frvaddr4");
1811
1812 in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
1813 if (!in_dev)
1814 return;
1815 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1816 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1817 if (addr) {
1818 addr->u.a4.addr = ifa->ifa_address;
1819 addr->u.a4.mask = ifa->ifa_mask;
1820 addr->type = QETH_IP_TYPE_NORMAL;
1821 if (!qeth_l3_delete_ip(card, addr))
1822 kfree(addr);
1823 }
1824 }
1825 in_dev_put(in_dev);
1826}
1827
1828static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1829 unsigned short vid)
1830{
1831#ifdef CONFIG_QETH_IPV6
1832 struct inet6_dev *in6_dev;
1833 struct inet6_ifaddr *ifa;
1834 struct qeth_ipaddr *addr;
1835
1836 QETH_CARD_TEXT(card, 4, "frvaddr6");
1837
1838 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1839 if (!in6_dev)
1840 return;
1841 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1842 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1843 if (addr) {
1844 memcpy(&addr->u.a6.addr, &ifa->addr,
1845 sizeof(struct in6_addr));
1846 addr->u.a6.pfxlen = ifa->prefix_len;
1847 addr->type = QETH_IP_TYPE_NORMAL;
1848 if (!qeth_l3_delete_ip(card, addr))
1849 kfree(addr);
1850 }
1851 }
1852 in6_dev_put(in6_dev);
1853#endif /* CONFIG_QETH_IPV6 */
1854}
1855
1856static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1857 unsigned short vid)
1858{
1859 if (!card->vlangrp)
1860 return;
1861 qeth_l3_free_vlan_addresses4(card, vid);
1862 qeth_l3_free_vlan_addresses6(card, vid);
1863}
1864
1865static void qeth_l3_vlan_rx_register(struct net_device *dev,
1866 struct vlan_group *grp)
1867{
1868 struct qeth_card *card = dev->ml_priv;
1869 unsigned long flags;
1870
1871 QETH_CARD_TEXT(card, 4, "vlanreg");
1872 spin_lock_irqsave(&card->vlanlock, flags);
1873 card->vlangrp = grp;
1874 spin_unlock_irqrestore(&card->vlanlock, flags);
1875}
1876
1877static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
1878{
1879 return;
1880}
1881
1882static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
1883{
1884 struct qeth_card *card = dev->ml_priv;
1885 unsigned long flags;
1886
1887 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
1888 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1889 QETH_CARD_TEXT(card, 3, "kidREC");
1890 return;
1891 }
1892 spin_lock_irqsave(&card->vlanlock, flags);
1893 /* unregister IP addresses of vlan device */
1894 qeth_l3_free_vlan_addresses(card, vid);
1895 vlan_group_set_device(card->vlangrp, vid, NULL);
1896 spin_unlock_irqrestore(&card->vlanlock, flags);
1897 qeth_l3_set_multicast_list(card->dev);
1898}
1899
1900static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1901 struct sk_buff *skb, struct qeth_hdr *hdr,
1902 unsigned short *vlan_id)
1903{
1904 __be16 prot;
1905 str…Large files files are truncated, but you can click here to view the full file