]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blame - drivers/s390/net/qeth_l3_main.c
projects / mirror_ubuntu-artful-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
net: vlan: prepare for 802.1ad VLAN filtering offload
[mirror_ubuntu-artful-kernel.git] / drivers / s390 / net / qeth_l3_main.c
CommitLineData
4a71df50 1/*
bbcfcdc8 2 * Copyright IBM Corp. 2007, 2009
4a71df50
FB		 3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
7 */
8
74eacdb9
FB		 9#define KMSG_COMPONENT "qeth"
10#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
11
4a71df50
FB		 12#include <linux/module.h>
13#include <linux/moduleparam.h>
7ff0bcf6 14#include <linux/bitops.h>
4a71df50
FB		 15#include <linux/string.h>
16#include <linux/errno.h>
17#include <linux/kernel.h>
18#include <linux/etherdevice.h>
19#include <linux/mii.h>
20#include <linux/ip.h>
64ef8957 21#include <linux/ipv6.h>
4a71df50
FB		 22#include <linux/inetdevice.h>
23#include <linux/igmp.h>
5a0e3ad6 24#include <linux/slab.h>
7ff0bcf6 25#include <linux/if_vlan.h>
4a71df50
FB		 26
27#include <net/ip.h>
28#include <net/arp.h>
87e7597b
DM		 29#include <net/route.h>
30#include <net/ip6_fib.h>
64ef8957 31#include <net/ip6_checksum.h>
b3332930 32#include <net/iucv/af_iucv.h>
4a71df50 33
4a71df50 34#include "qeth_l3.h"
4a71df50 35
d0ddf30f 36
4a71df50
FB		 37static int qeth_l3_set_offline(struct ccwgroup_device *);
38static int qeth_l3_recover(void *);
39static int qeth_l3_stop(struct net_device *);
40static void qeth_l3_set_multicast_list(struct net_device *);
41static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
42static int qeth_l3_register_addr_entry(struct qeth_card *,
43 struct qeth_ipaddr *);
44static int qeth_l3_deregister_addr_entry(struct qeth_card *,
45 struct qeth_ipaddr *);
46static int __qeth_l3_set_online(struct ccwgroup_device *, int);
47static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
48
4a71df50
FB		 49static int qeth_l3_isxdigit(char *buf)
50{
51 while (*buf) {
52 if (!isxdigit(*buf++))
53 return 0;
54 }
55 return 1;
56}
57
58void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
59{
60 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
61}
62
63int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
64{
65 int count = 0, rc = 0;
66 int in[4];
67 char c;
68
69 rc = sscanf(buf, "%u.%u.%u.%u%c",
70 &in[0], &in[1], &in[2], &in[3], &c);
71 if (rc != 4 && (rc != 5 || c != '\n'))
72 return -EINVAL;
73 for (count = 0; count < 4; count++) {
74 if (in[count] > 255)
75 return -EINVAL;
76 addr[count] = in[count];
77 }
78 return 0;
79}
80
81void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
82{
963a9fd2 83 sprintf(buf, "%pI6", addr);
4a71df50
FB		 84}
85
86int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
87{
88 const char *end, *end_tmp, *start;
89 __u16 *in;
90 char num[5];
91 int num2, cnt, out, found, save_cnt;
92 unsigned short in_tmp[8] = {0, };
93
94 cnt = out = found = save_cnt = num2 = 0;
95 end = start = buf;
96 in = (__u16 *) addr;
97 memset(in, 0, 16);
98 while (*end) {
99 end = strchr(start, ':');
100 if (end == NULL) {
101 end = buf + strlen(buf);
102 end_tmp = strchr(start, '\n');
103 if (end_tmp != NULL)
104 end = end_tmp;
105 out = 1;
106 }
107 if ((end - start)) {
108 memset(num, 0, 5);
109 if ((end - start) > 4)
110 return -EINVAL;
111 memcpy(num, start, end - start);
112 if (!qeth_l3_isxdigit(num))
113 return -EINVAL;
114 sscanf(start, "%x", &num2);
115 if (found)
116 in_tmp[save_cnt++] = num2;
117 else
118 in[cnt++] = num2;
119 if (out)
120 break;
121 } else {
122 if (found)
123 return -EINVAL;
124 found = 1;
125 }
126 start = ++end;
127 }
128 if (cnt + save_cnt > 8)
129 return -EINVAL;
130 cnt = 7;
131 while (save_cnt)
132 in[cnt--] = in_tmp[--save_cnt];
133 return 0;
134}
135
136void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
137 char *buf)
138{
139 if (proto == QETH_PROT_IPV4)
140 qeth_l3_ipaddr4_to_string(addr, buf);
141 else if (proto == QETH_PROT_IPV6)
142 qeth_l3_ipaddr6_to_string(addr, buf);
143}
144
145int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
146 __u8 *addr)
147{
148 if (proto == QETH_PROT_IPV4)
149 return qeth_l3_string_to_ipaddr4(buf, addr);
150 else if (proto == QETH_PROT_IPV6)
151 return qeth_l3_string_to_ipaddr6(buf, addr);
152 else
153 return -EINVAL;
154}
155
156static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
157{
158 int i, j;
159 u8 octet;
160
161 for (i = 0; i < len; ++i) {
162 octet = addr[i];
163 for (j = 7; j >= 0; --j) {
164 bits[i*8 + j] = octet & 1;
165 octet >>= 1;
166 }
167 }
168}
169
6298263a 170int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
4a71df50
FB		 171 struct qeth_ipaddr *addr)
172{
173 struct qeth_ipato_entry *ipatoe;
174 u8 addr_bits[128] = {0, };
175 u8 ipatoe_bits[128] = {0, };
176 int rc = 0;
177
178 if (!card->ipato.enabled)
179 return 0;
180
181 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
182 (addr->proto == QETH_PROT_IPV4)? 4:16);
183 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
184 if (addr->proto != ipatoe->proto)
185 continue;
186 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
187 (ipatoe->proto == QETH_PROT_IPV4) ?
188 4 : 16);
189 if (addr->proto == QETH_PROT_IPV4)
190 rc = !memcmp(addr_bits, ipatoe_bits,
191 min(32, ipatoe->mask_bits));
192 else
193 rc = !memcmp(addr_bits, ipatoe_bits,
194 min(128, ipatoe->mask_bits));
195 if (rc)
196 break;
197 }
198 /* invert? */
199 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
200 rc = !rc;
201 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
202 rc = !rc;
203
204 return rc;
205}
206
207/*
208 * Add IP to be added to todo list. If there is already an "add todo"
209 * in this list we just incremenent the reference count.
210 * Returns 0 if we just incremented reference count.
211 */
212static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
213 struct qeth_ipaddr *addr, int add)
214{
215 struct qeth_ipaddr *tmp, *t;
216 int found = 0;
217
76b11f8e
UB		 218 if (card->options.sniffer)
219 return 0;
4a71df50
FB		 220 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
221 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
222 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
223 return 0;
224 if ((tmp->proto == QETH_PROT_IPV4) &&
225 (addr->proto == QETH_PROT_IPV4) &&
226 (tmp->type == addr->type) &&
227 (tmp->is_multicast == addr->is_multicast) &&
228 (tmp->u.a4.addr == addr->u.a4.addr) &&
229 (tmp->u.a4.mask == addr->u.a4.mask)) {
230 found = 1;
231 break;
232 }
233 if ((tmp->proto == QETH_PROT_IPV6) &&
234 (addr->proto == QETH_PROT_IPV6) &&
235 (tmp->type == addr->type) &&
236 (tmp->is_multicast == addr->is_multicast) &&
237 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
238 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
239 sizeof(struct in6_addr)) == 0)) {
240 found = 1;
241 break;
242 }
243 }
244 if (found) {
245 if (addr->users != 0)
246 tmp->users += addr->users;
247 else
248 tmp->users += add ? 1 : -1;
249 if (tmp->users == 0) {
250 list_del(&tmp->entry);
251 kfree(tmp);
252 }
253 return 0;
254 } else {
255 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
256 list_add(&addr->entry, card->ip_tbd_list);
257 else {
258 if (addr->users == 0)
259 addr->users += add ? 1 : -1;
260 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
261 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
847a50fd 262 QETH_CARD_TEXT(card, 2, "tkovaddr");
4a71df50
FB		 263 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
264 }
265 list_add_tail(&addr->entry, card->ip_tbd_list);
266 }
267 return 1;
268 }
269}
270
b3332930 271int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
4a71df50
FB		 272{
273 unsigned long flags;
274 int rc = 0;
275
847a50fd 276 QETH_CARD_TEXT(card, 4, "delip");
4a71df50
FB		 277
278 if (addr->proto == QETH_PROT_IPV4)
847a50fd 279 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
4a71df50 280 else {
847a50fd
CO		 281 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
282 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50
FB		 283 }
284 spin_lock_irqsave(&card->ip_lock, flags);
285 rc = __qeth_l3_insert_ip_todo(card, addr, 0);
286 spin_unlock_irqrestore(&card->ip_lock, flags);
287 return rc;
288}
289
b3332930 290int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
4a71df50
FB		 291{
292 unsigned long flags;
293 int rc = 0;
294
847a50fd 295 QETH_CARD_TEXT(card, 4, "addip");
4a71df50 296 if (addr->proto == QETH_PROT_IPV4)
847a50fd 297 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
4a71df50 298 else {
847a50fd
CO		 299 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
300 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50
FB		 301 }
302 spin_lock_irqsave(&card->ip_lock, flags);
303 rc = __qeth_l3_insert_ip_todo(card, addr, 1);
304 spin_unlock_irqrestore(&card->ip_lock, flags);
305 return rc;
306}
307
308
b3332930 309struct qeth_ipaddr *qeth_l3_get_addr_buffer(
4a71df50
FB		 310 enum qeth_prot_versions prot)
311{
312 struct qeth_ipaddr *addr;
313
314 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
315 if (addr == NULL) {
4a71df50
FB		 316 return NULL;
317 }
318 addr->type = QETH_IP_TYPE_NORMAL;
319 addr->proto = prot;
320 return addr;
321}
322
323static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
324{
325 struct qeth_ipaddr *iptodo;
326 unsigned long flags;
327
847a50fd 328 QETH_CARD_TEXT(card, 4, "delmc");
4a71df50
FB		 329 iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
330 if (!iptodo) {
847a50fd 331 QETH_CARD_TEXT(card, 2, "dmcnomem");
4a71df50
FB		 332 return;
333 }
334 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
335 spin_lock_irqsave(&card->ip_lock, flags);
336 if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
337 kfree(iptodo);
338 spin_unlock_irqrestore(&card->ip_lock, flags);
339}
340
341/*
342 * Add/remove address to/from card's ip list, i.e. try to add or remove
343 * reference to/from an IP address that is already registered on the card.
344 * Returns:
345 * 0 address was on card and its reference count has been adjusted,
346 * but is still > 0, so nothing has to be done
347 * also returns 0 if card was not on card and the todo was to delete
348 * the address -> there is also nothing to be done
349 * 1 address was not on card and the todo is to add it to the card's ip
350 * list
351 * -1 address was on card and its reference count has been decremented
352 * to <= 0 by the todo -> address must be removed from card
353 */
354static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
355 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
356{
357 struct qeth_ipaddr *addr;
358 int found = 0;
359
360 list_for_each_entry(addr, &card->ip_list, entry) {
361 if ((addr->proto == QETH_PROT_IPV4) &&
362 (todo->proto == QETH_PROT_IPV4) &&
363 (addr->type == todo->type) &&
364 (addr->u.a4.addr == todo->u.a4.addr) &&
365 (addr->u.a4.mask == todo->u.a4.mask)) {
366 found = 1;
367 break;
368 }
369 if ((addr->proto == QETH_PROT_IPV6) &&
370 (todo->proto == QETH_PROT_IPV6) &&
371 (addr->type == todo->type) &&
372 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
373 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
374 sizeof(struct in6_addr)) == 0)) {
375 found = 1;
376 break;
377 }
378 }
379 if (found) {
380 addr->users += todo->users;
381 if (addr->users <= 0) {
382 *__addr = addr;
383 return -1;
384 } else {
385 /* for VIPA and RXIP limit refcount to 1 */
386 if (addr->type != QETH_IP_TYPE_NORMAL)
387 addr->users = 1;
388 return 0;
389 }
390 }
391 if (todo->users > 0) {
392 /* for VIPA and RXIP limit refcount to 1 */
393 if (todo->type != QETH_IP_TYPE_NORMAL)
394 todo->users = 1;
395 return 1;
396 } else
397 return 0;
398}
399
400static void __qeth_l3_delete_all_mc(struct qeth_card *card,
401 unsigned long *flags)
402{
2d921c32 403 struct list_head fail_list;
4a71df50
FB		 404 struct qeth_ipaddr *addr, *tmp;
405 int rc;
2d921c32
UB		 406
407 INIT_LIST_HEAD(&fail_list);
4a71df50
FB		 408again:
409 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
410 if (addr->is_multicast) {
411 list_del(&addr->entry);
412 spin_unlock_irqrestore(&card->ip_lock, *flags);
413 rc = qeth_l3_deregister_addr_entry(card, addr);
414 spin_lock_irqsave(&card->ip_lock, *flags);
2d921c32 415 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
4a71df50 416 kfree(addr);
2d921c32
UB		 417 else
418 list_add_tail(&addr->entry, &fail_list);
419 goto again;
4a71df50
FB		 420 }
421 }
2d921c32 422 list_splice(&fail_list, &card->ip_list);
4a71df50
FB		 423}
424
b3332930 425void qeth_l3_set_ip_addr_list(struct qeth_card *card)
4a71df50
FB		 426{
427 struct list_head *tbd_list;
428 struct qeth_ipaddr *todo, *addr;
429 unsigned long flags;
430 int rc;
431
847a50fd
CO		 432 QETH_CARD_TEXT(card, 2, "sdiplist");
433 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
4a71df50 434
f154b79c
EL		 435 if ((card->state != CARD_STATE_UP &&
436 card->state != CARD_STATE_SOFTSETUP) || card->options.sniffer) {
76b11f8e 437 return;
f154b79c
EL		 438 }
439
4a71df50
FB		 440 spin_lock_irqsave(&card->ip_lock, flags);
441 tbd_list = card->ip_tbd_list;
b3332930 442 card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_ATOMIC);
4a71df50 443 if (!card->ip_tbd_list) {
847a50fd 444 QETH_CARD_TEXT(card, 0, "silnomem");
4a71df50
FB		 445 card->ip_tbd_list = tbd_list;
446 spin_unlock_irqrestore(&card->ip_lock, flags);
447 return;
448 } else
449 INIT_LIST_HEAD(card->ip_tbd_list);
450
451 while (!list_empty(tbd_list)) {
452 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
453 list_del(&todo->entry);
454 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
455 __qeth_l3_delete_all_mc(card, &flags);
456 kfree(todo);
457 continue;
458 }
459 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
460 if (rc == 0) {
461 /* nothing to be done; only adjusted refcount */
462 kfree(todo);
463 } else if (rc == 1) {
464 /* new entry to be added to on-card list */
465 spin_unlock_irqrestore(&card->ip_lock, flags);
466 rc = qeth_l3_register_addr_entry(card, todo);
467 spin_lock_irqsave(&card->ip_lock, flags);
3caa4af8 468 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
4a71df50
FB		 469 list_add_tail(&todo->entry, &card->ip_list);
470 else
471 kfree(todo);
472 } else if (rc == -1) {
473 /* on-card entry to be removed */
474 list_del_init(&addr->entry);
475 spin_unlock_irqrestore(&card->ip_lock, flags);
476 rc = qeth_l3_deregister_addr_entry(card, addr);
477 spin_lock_irqsave(&card->ip_lock, flags);
76b11f8e 478 if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
4a71df50
FB		 479 kfree(addr);
480 else
481 list_add_tail(&addr->entry, &card->ip_list);
482 kfree(todo);
483 }
484 }
485 spin_unlock_irqrestore(&card->ip_lock, flags);
486 kfree(tbd_list);
487}
488
70919e23 489static void qeth_l3_clear_ip_list(struct qeth_card *card, int recover)
4a71df50
FB		 490{
491 struct qeth_ipaddr *addr, *tmp;
492 unsigned long flags;
493
847a50fd 494 QETH_CARD_TEXT(card, 4, "clearip");
76b11f8e
UB		 495 if (recover && card->options.sniffer)
496 return;
4a71df50
FB		 497 spin_lock_irqsave(&card->ip_lock, flags);
498 /* clear todo list */
499 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
500 list_del(&addr->entry);
501 kfree(addr);
502 }
503
504 while (!list_empty(&card->ip_list)) {
505 addr = list_entry(card->ip_list.next,
506 struct qeth_ipaddr, entry);
507 list_del_init(&addr->entry);
4a71df50
FB		 508 if (!recover || addr->is_multicast) {
509 kfree(addr);
510 continue;
511 }
512 list_add_tail(&addr->entry, card->ip_tbd_list);
513 }
514 spin_unlock_irqrestore(&card->ip_lock, flags);
515}
516
517static int qeth_l3_address_exists_in_list(struct list_head *list,
518 struct qeth_ipaddr *addr, int same_type)
519{
520 struct qeth_ipaddr *tmp;
521
522 list_for_each_entry(tmp, list, entry) {
523 if ((tmp->proto == QETH_PROT_IPV4) &&
524 (addr->proto == QETH_PROT_IPV4) &&
525 ((same_type && (tmp->type == addr->type)) ||
526 (!same_type && (tmp->type != addr->type))) &&
527 (tmp->u.a4.addr == addr->u.a4.addr))
528 return 1;
529
530 if ((tmp->proto == QETH_PROT_IPV6) &&
531 (addr->proto == QETH_PROT_IPV6) &&
532 ((same_type && (tmp->type == addr->type)) ||
533 (!same_type && (tmp->type != addr->type))) &&
534 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
535 sizeof(struct in6_addr)) == 0))
536 return 1;
537
538 }
539 return 0;
540}
541
542static int qeth_l3_send_setdelmc(struct qeth_card *card,
543 struct qeth_ipaddr *addr, int ipacmd)
544{
545 int rc;
546 struct qeth_cmd_buffer *iob;
547 struct qeth_ipa_cmd *cmd;
548
847a50fd 549 QETH_CARD_TEXT(card, 4, "setdelmc");
4a71df50
FB		 550
551 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
552 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
553 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
554 if (addr->proto == QETH_PROT_IPV6)
555 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
556 sizeof(struct in6_addr));
557 else
558 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
559
560 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
561
562 return rc;
563}
564
565static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
566{
567 int i, j;
568 for (i = 0; i < 16; i++) {
569 j = (len) - (i * 8);
570 if (j >= 8)
571 netmask[i] = 0xff;
572 else if (j > 0)
573 netmask[i] = (u8)(0xFF00 >> j);
574 else
575 netmask[i] = 0;
576 }
577}
578
579static int qeth_l3_send_setdelip(struct qeth_card *card,
580 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
581{
582 int rc;
583 struct qeth_cmd_buffer *iob;
584 struct qeth_ipa_cmd *cmd;
585 __u8 netmask[16];
586
847a50fd
CO		 587 QETH_CARD_TEXT(card, 4, "setdelip");
588 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
4a71df50
FB		 589
590 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
591 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
592 if (addr->proto == QETH_PROT_IPV6) {
593 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
594 sizeof(struct in6_addr));
595 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
596 memcpy(cmd->data.setdelip6.mask, netmask,
597 sizeof(struct in6_addr));
598 cmd->data.setdelip6.flags = flags;
599 } else {
600 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
601 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
602 cmd->data.setdelip4.flags = flags;
603 }
604
605 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
606
607 return rc;
608}
609
610static int qeth_l3_send_setrouting(struct qeth_card *card,
611 enum qeth_routing_types type, enum qeth_prot_versions prot)
612{
613 int rc;
614 struct qeth_ipa_cmd *cmd;
615 struct qeth_cmd_buffer *iob;
616
847a50fd 617 QETH_CARD_TEXT(card, 4, "setroutg");
4a71df50
FB		 618 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
619 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
620 cmd->data.setrtg.type = (type);
621 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
622
623 return rc;
624}
625
82e2e782 626static int qeth_l3_correct_routing_type(struct qeth_card *card,
4a71df50
FB		 627 enum qeth_routing_types *type, enum qeth_prot_versions prot)
628{
629 if (card->info.type == QETH_CARD_TYPE_IQD) {
630 switch (*type) {
631 case NO_ROUTER:
632 case PRIMARY_CONNECTOR:
633 case SECONDARY_CONNECTOR:
634 case MULTICAST_ROUTER:
82e2e782 635 return 0;
4a71df50
FB		 636 default:
637 goto out_inval;
638 }
639 } else {
640 switch (*type) {
641 case NO_ROUTER:
642 case PRIMARY_ROUTER:
643 case SECONDARY_ROUTER:
82e2e782 644 return 0;
4a71df50
FB		 645 case MULTICAST_ROUTER:
646 if (qeth_is_ipafunc_supported(card, prot,
647 IPA_OSA_MC_ROUTER))
82e2e782 648 return 0;
4a71df50
FB		 649 default:
650 goto out_inval;
651 }
652 }
653out_inval:
4a71df50 654 *type = NO_ROUTER;
82e2e782 655 return -EINVAL;
4a71df50
FB		 656}
657
658int qeth_l3_setrouting_v4(struct qeth_card *card)
659{
660 int rc;
661
847a50fd 662 QETH_CARD_TEXT(card, 3, "setrtg4");
4a71df50 663
82e2e782 664 rc = qeth_l3_correct_routing_type(card, &card->options.route4.type,
4a71df50 665 QETH_PROT_IPV4);
82e2e782
SR		 666 if (rc)
667 return rc;
4a71df50
FB		 668
669 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
670 QETH_PROT_IPV4);
671 if (rc) {
672 card->options.route4.type = NO_ROUTER;
14cc21b6
FB		 673 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
674 " on %s. Type set to 'no router'.\n", rc,
675 QETH_CARD_IFNAME(card));
4a71df50
FB		 676 }
677 return rc;
678}
679
680int qeth_l3_setrouting_v6(struct qeth_card *card)
681{
682 int rc = 0;
683
847a50fd 684 QETH_CARD_TEXT(card, 3, "setrtg6");
4a71df50
FB		 685#ifdef CONFIG_QETH_IPV6
686
687 if (!qeth_is_supported(card, IPA_IPV6))
688 return 0;
82e2e782 689 rc = qeth_l3_correct_routing_type(card, &card->options.route6.type,
4a71df50 690 QETH_PROT_IPV6);
82e2e782
SR		 691 if (rc)
692 return rc;
4a71df50
FB		 693
694 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
695 QETH_PROT_IPV6);
696 if (rc) {
697 card->options.route6.type = NO_ROUTER;
14cc21b6
FB		 698 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
699 " on %s. Type set to 'no router'.\n", rc,
700 QETH_CARD_IFNAME(card));
4a71df50
FB		 701 }
702#endif
703 return rc;
704}
705
706/*
707 * IP address takeover related functions
708 */
709static void qeth_l3_clear_ipato_list(struct qeth_card *card)
710{
711
712 struct qeth_ipato_entry *ipatoe, *tmp;
713 unsigned long flags;
714
715 spin_lock_irqsave(&card->ip_lock, flags);
716 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
717 list_del(&ipatoe->entry);
718 kfree(ipatoe);
719 }
720 spin_unlock_irqrestore(&card->ip_lock, flags);
721}
722
723int qeth_l3_add_ipato_entry(struct qeth_card *card,
724 struct qeth_ipato_entry *new)
725{
726 struct qeth_ipato_entry *ipatoe;
727 unsigned long flags;
728 int rc = 0;
729
847a50fd 730 QETH_CARD_TEXT(card, 2, "addipato");
4a71df50
FB		 731 spin_lock_irqsave(&card->ip_lock, flags);
732 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
733 if (ipatoe->proto != new->proto)
734 continue;
735 if (!memcmp(ipatoe->addr, new->addr,
736 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
737 (ipatoe->mask_bits == new->mask_bits)) {
4a71df50
FB		 738 rc = -EEXIST;
739 break;
740 }
741 }
742 if (!rc)
743 list_add_tail(&new->entry, &card->ipato.entries);
744
745 spin_unlock_irqrestore(&card->ip_lock, flags);
746 return rc;
747}
748
749void qeth_l3_del_ipato_entry(struct qeth_card *card,
750 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
751{
752 struct qeth_ipato_entry *ipatoe, *tmp;
753 unsigned long flags;
754
847a50fd 755 QETH_CARD_TEXT(card, 2, "delipato");
4a71df50
FB		 756 spin_lock_irqsave(&card->ip_lock, flags);
757 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
758 if (ipatoe->proto != proto)
759 continue;
760 if (!memcmp(ipatoe->addr, addr,
761 (proto == QETH_PROT_IPV4)? 4:16) &&
762 (ipatoe->mask_bits == mask_bits)) {
763 list_del(&ipatoe->entry);
764 kfree(ipatoe);
765 }
766 }
767 spin_unlock_irqrestore(&card->ip_lock, flags);
768}
769
770/*
771 * VIPA related functions
772 */
773int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
774 const u8 *addr)
775{
776 struct qeth_ipaddr *ipaddr;
777 unsigned long flags;
778 int rc = 0;
779
780 ipaddr = qeth_l3_get_addr_buffer(proto);
781 if (ipaddr) {
782 if (proto == QETH_PROT_IPV4) {
847a50fd 783 QETH_CARD_TEXT(card, 2, "addvipa4");
4a71df50
FB		 784 memcpy(&ipaddr->u.a4.addr, addr, 4);
785 ipaddr->u.a4.mask = 0;
786 } else if (proto == QETH_PROT_IPV6) {
847a50fd 787 QETH_CARD_TEXT(card, 2, "addvipa6");
4a71df50
FB		 788 memcpy(&ipaddr->u.a6.addr, addr, 16);
789 ipaddr->u.a6.pfxlen = 0;
790 }
791 ipaddr->type = QETH_IP_TYPE_VIPA;
792 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
793 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
794 } else
795 return -ENOMEM;
796 spin_lock_irqsave(&card->ip_lock, flags);
797 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
798 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
799 rc = -EEXIST;
800 spin_unlock_irqrestore(&card->ip_lock, flags);
801 if (rc) {
f68bd07c 802 kfree(ipaddr);
4a71df50
FB		 803 return rc;
804 }
805 if (!qeth_l3_add_ip(card, ipaddr))
806 kfree(ipaddr);
807 qeth_l3_set_ip_addr_list(card);
808 return rc;
809}
810
811void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
812 const u8 *addr)
813{
814 struct qeth_ipaddr *ipaddr;
815
816 ipaddr = qeth_l3_get_addr_buffer(proto);
817 if (ipaddr) {
818 if (proto == QETH_PROT_IPV4) {
847a50fd 819 QETH_CARD_TEXT(card, 2, "delvipa4");
4a71df50
FB		 820 memcpy(&ipaddr->u.a4.addr, addr, 4);
821 ipaddr->u.a4.mask = 0;
822 } else if (proto == QETH_PROT_IPV6) {
847a50fd 823 QETH_CARD_TEXT(card, 2, "delvipa6");
4a71df50
FB		 824 memcpy(&ipaddr->u.a6.addr, addr, 16);
825 ipaddr->u.a6.pfxlen = 0;
826 }
827 ipaddr->type = QETH_IP_TYPE_VIPA;
828 } else
829 return;
830 if (!qeth_l3_delete_ip(card, ipaddr))
831 kfree(ipaddr);
832 qeth_l3_set_ip_addr_list(card);
833}
834
835/*
836 * proxy ARP related functions
837 */
838int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
839 const u8 *addr)
840{
841 struct qeth_ipaddr *ipaddr;
842 unsigned long flags;
843 int rc = 0;
844
845 ipaddr = qeth_l3_get_addr_buffer(proto);
846 if (ipaddr) {
847 if (proto == QETH_PROT_IPV4) {
847a50fd 848 QETH_CARD_TEXT(card, 2, "addrxip4");
4a71df50
FB		 849 memcpy(&ipaddr->u.a4.addr, addr, 4);
850 ipaddr->u.a4.mask = 0;
851 } else if (proto == QETH_PROT_IPV6) {
847a50fd 852 QETH_CARD_TEXT(card, 2, "addrxip6");
4a71df50
FB		 853 memcpy(&ipaddr->u.a6.addr, addr, 16);
854 ipaddr->u.a6.pfxlen = 0;
855 }
856 ipaddr->type = QETH_IP_TYPE_RXIP;
857 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
858 ipaddr->del_flags = 0;
859 } else
860 return -ENOMEM;
861 spin_lock_irqsave(&card->ip_lock, flags);
862 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
863 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
864 rc = -EEXIST;
865 spin_unlock_irqrestore(&card->ip_lock, flags);
866 if (rc) {
f68bd07c 867 kfree(ipaddr);
4a71df50
FB		 868 return rc;
869 }
870 if (!qeth_l3_add_ip(card, ipaddr))
871 kfree(ipaddr);
872 qeth_l3_set_ip_addr_list(card);
873 return 0;
874}
875
876void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
877 const u8 *addr)
878{
879 struct qeth_ipaddr *ipaddr;
880
881 ipaddr = qeth_l3_get_addr_buffer(proto);
882 if (ipaddr) {
883 if (proto == QETH_PROT_IPV4) {
847a50fd 884 QETH_CARD_TEXT(card, 2, "addrxip4");
4a71df50
FB		 885 memcpy(&ipaddr->u.a4.addr, addr, 4);
886 ipaddr->u.a4.mask = 0;
887 } else if (proto == QETH_PROT_IPV6) {
847a50fd 888 QETH_CARD_TEXT(card, 2, "addrxip6");
4a71df50
FB		 889 memcpy(&ipaddr->u.a6.addr, addr, 16);
890 ipaddr->u.a6.pfxlen = 0;
891 }
892 ipaddr->type = QETH_IP_TYPE_RXIP;
893 } else
894 return;
895 if (!qeth_l3_delete_ip(card, ipaddr))
896 kfree(ipaddr);
897 qeth_l3_set_ip_addr_list(card);
898}
899
900static int qeth_l3_register_addr_entry(struct qeth_card *card,
901 struct qeth_ipaddr *addr)
902{
903 char buf[50];
904 int rc = 0;
905 int cnt = 3;
906
907 if (addr->proto == QETH_PROT_IPV4) {
847a50fd
CO		 908 QETH_CARD_TEXT(card, 2, "setaddr4");
909 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 910 } else if (addr->proto == QETH_PROT_IPV6) {
847a50fd
CO		 911 QETH_CARD_TEXT(card, 2, "setaddr6");
912 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
913 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 914 } else {
847a50fd
CO		 915 QETH_CARD_TEXT(card, 2, "setaddr?");
916 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 917 }
918 do {
919 if (addr->is_multicast)
920 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
921 else
922 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
923 addr->set_flags);
924 if (rc)
847a50fd 925 QETH_CARD_TEXT(card, 2, "failed");
4a71df50
FB		 926 } while ((--cnt > 0) && rc);
927 if (rc) {
847a50fd 928 QETH_CARD_TEXT(card, 2, "FAILED");
4a71df50 929 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
74eacdb9
FB		 930 dev_warn(&card->gdev->dev,
931 "Registering IP address %s failed\n", buf);
4a71df50
FB		 932 }
933 return rc;
934}
935
936static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
937 struct qeth_ipaddr *addr)
938{
939 int rc = 0;
940
941 if (addr->proto == QETH_PROT_IPV4) {
847a50fd
CO		 942 QETH_CARD_TEXT(card, 2, "deladdr4");
943 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 944 } else if (addr->proto == QETH_PROT_IPV6) {
847a50fd
CO		 945 QETH_CARD_TEXT(card, 2, "deladdr6");
946 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
947 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 948 } else {
847a50fd
CO		 949 QETH_CARD_TEXT(card, 2, "deladdr?");
950 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 951 }
952 if (addr->is_multicast)
953 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
954 else
955 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
956 addr->del_flags);
c4cef07c 957 if (rc)
847a50fd 958 QETH_CARD_TEXT(card, 2, "failed");
4a71df50
FB		 959
960 return rc;
961}
962
963static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
964{
965 if (cast_type == RTN_MULTICAST)
966 return QETH_CAST_MULTICAST;
967 if (cast_type == RTN_BROADCAST)
968 return QETH_CAST_BROADCAST;
969 return QETH_CAST_UNICAST;
970}
971
972static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
973{
974 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
975 if (cast_type == RTN_MULTICAST)
976 return ct | QETH_CAST_MULTICAST;
977 if (cast_type == RTN_ANYCAST)
978 return ct | QETH_CAST_ANYCAST;
979 if (cast_type == RTN_BROADCAST)
980 return ct | QETH_CAST_BROADCAST;
981 return ct | QETH_CAST_UNICAST;
982}
983
4a71df50
FB		 984static int qeth_l3_setadapter_parms(struct qeth_card *card)
985{
986 int rc;
987
d11ba0c4 988 QETH_DBF_TEXT(SETUP, 2, "setadprm");
4a71df50
FB		 989
990 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
74eacdb9
FB		 991 dev_info(&card->gdev->dev,
992 "set adapter parameters not supported.\n");
d11ba0c4 993 QETH_DBF_TEXT(SETUP, 2, " notsupp");
4a71df50
FB		 994 return 0;
995 }
996 rc = qeth_query_setadapterparms(card);
997 if (rc) {
74eacdb9 998 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
7f6d95e7 999 "0x%x\n", dev_name(&card->gdev->dev), rc);
4a71df50
FB		 1000 return rc;
1001 }
1002 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1003 rc = qeth_setadpparms_change_macaddr(card);
1004 if (rc)
74eacdb9 1005 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
6ea2fde1 1006 " address failed\n");
4a71df50
FB		 1007 }
1008
4a71df50
FB		 1009 return rc;
1010}
1011
1012static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1013 struct qeth_reply *reply, unsigned long data)
1014{
1015 struct qeth_ipa_cmd *cmd;
1016
847a50fd 1017 QETH_CARD_TEXT(card, 4, "defadpcb");
4a71df50
FB		 1018
1019 cmd = (struct qeth_ipa_cmd *) data;
1020 if (cmd->hdr.return_code == 0) {
1021 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1022 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1023 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1024 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1025 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1026 }
1027 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1028 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1029 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
847a50fd 1030 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
4a71df50 1031 }
f6b85b6c
FB		 1032 if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1033 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1034 card->info.tx_csum_mask =
1035 cmd->data.setassparms.data.flags_32bit;
847a50fd 1036 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
f6b85b6c
FB		 1037 }
1038
4a71df50
FB		 1039 return 0;
1040}
1041
1042static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1043 struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1044 __u16 len, enum qeth_prot_versions prot)
1045{
1046 struct qeth_cmd_buffer *iob;
1047 struct qeth_ipa_cmd *cmd;
1048
847a50fd 1049 QETH_CARD_TEXT(card, 4, "getasscm");
4a71df50
FB		 1050 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1051
1052 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1053 cmd->data.setassparms.hdr.assist_no = ipa_func;
1054 cmd->data.setassparms.hdr.length = 8 + len;
1055 cmd->data.setassparms.hdr.command_code = cmd_code;
1056 cmd->data.setassparms.hdr.return_code = 0;
1057 cmd->data.setassparms.hdr.seq_no = 0;
1058
1059 return iob;
1060}
1061
1062static int qeth_l3_send_setassparms(struct qeth_card *card,
1063 struct qeth_cmd_buffer *iob, __u16 len, long data,
1064 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1065 unsigned long),
1066 void *reply_param)
1067{
1068 int rc;
1069 struct qeth_ipa_cmd *cmd;
1070
847a50fd 1071 QETH_CARD_TEXT(card, 4, "sendassp");
4a71df50
FB		 1072
1073 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1074 if (len <= sizeof(__u32))
1075 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1076 else /* (len > sizeof(__u32)) */
1077 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1078
1079 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1080 return rc;
1081}
1082
1083#ifdef CONFIG_QETH_IPV6
1084static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1085 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1086{
1087 int rc;
1088 struct qeth_cmd_buffer *iob;
1089
847a50fd 1090 QETH_CARD_TEXT(card, 4, "simassp6");
4a71df50
FB		 1091 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1092 0, QETH_PROT_IPV6);
1093 rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1094 qeth_l3_default_setassparms_cb, NULL);
1095 return rc;
1096}
1097#endif
1098
1099static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1100 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1101{
1102 int rc;
1103 int length = 0;
1104 struct qeth_cmd_buffer *iob;
1105
847a50fd 1106 QETH_CARD_TEXT(card, 4, "simassp4");
4a71df50
FB		 1107 if (data)
1108 length = sizeof(__u32);
1109 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1110 length, QETH_PROT_IPV4);
1111 rc = qeth_l3_send_setassparms(card, iob, length, data,
1112 qeth_l3_default_setassparms_cb, NULL);
1113 return rc;
1114}
1115
1116static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1117{
1118 int rc;
1119
847a50fd 1120 QETH_CARD_TEXT(card, 3, "ipaarp");
4a71df50
FB		 1121
1122 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
74eacdb9
FB		 1123 dev_info(&card->gdev->dev,
1124 "ARP processing not supported on %s!\n",
1125 QETH_CARD_IFNAME(card));
4a71df50
FB		 1126 return 0;
1127 }
1128 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1129 IPA_CMD_ASS_START, 0);
1130 if (rc) {
74eacdb9
FB		 1131 dev_warn(&card->gdev->dev,
1132 "Starting ARP processing support for %s failed\n",
1133 QETH_CARD_IFNAME(card));
4a71df50
FB		 1134 }
1135 return rc;
1136}
1137
1138static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1139{
1140 int rc;
1141
847a50fd 1142 QETH_CARD_TEXT(card, 3, "ipaipfrg");
4a71df50
FB		 1143
1144 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
74eacdb9
FB		 1145 dev_info(&card->gdev->dev,
1146 "Hardware IP fragmentation not supported on %s\n",
1147 QETH_CARD_IFNAME(card));
4a71df50
FB		 1148 return -EOPNOTSUPP;
1149 }
1150
1151 rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1152 IPA_CMD_ASS_START, 0);
1153 if (rc) {
74eacdb9
FB		 1154 dev_warn(&card->gdev->dev,
1155 "Starting IP fragmentation support for %s failed\n",
1156 QETH_CARD_IFNAME(card));
4a71df50 1157 } else
74eacdb9
FB		 1158 dev_info(&card->gdev->dev,
1159 "Hardware IP fragmentation enabled \n");
4a71df50
FB		 1160 return rc;
1161}
1162
1163static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1164{
1165 int rc;
1166
847a50fd 1167 QETH_CARD_TEXT(card, 3, "stsrcmac");
4a71df50 1168
4a71df50 1169 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
74eacdb9 1170 dev_info(&card->gdev->dev,
fe94e2e0 1171 "Inbound source MAC-address not supported on %s\n",
74eacdb9 1172 QETH_CARD_IFNAME(card));
4a71df50
FB		 1173 return -EOPNOTSUPP;
1174 }
1175
1176 rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1177 IPA_CMD_ASS_START, 0);
1178 if (rc)
74eacdb9 1179 dev_warn(&card->gdev->dev,
fe94e2e0 1180 "Starting source MAC-address support for %s failed\n",
74eacdb9 1181 QETH_CARD_IFNAME(card));
4a71df50
FB		 1182 return rc;
1183}
1184
1185static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1186{
1187 int rc = 0;
1188
847a50fd 1189 QETH_CARD_TEXT(card, 3, "strtvlan");
4a71df50
FB		 1190
1191 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
74eacdb9
FB		 1192 dev_info(&card->gdev->dev,
1193 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1194 return -EOPNOTSUPP;
1195 }
1196
1197 rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1198 IPA_CMD_ASS_START, 0);
1199 if (rc) {
74eacdb9
FB		 1200 dev_warn(&card->gdev->dev,
1201 "Starting VLAN support for %s failed\n",
1202 QETH_CARD_IFNAME(card));
4a71df50 1203 } else {
74eacdb9 1204 dev_info(&card->gdev->dev, "VLAN enabled\n");
4a71df50
FB		 1205 }
1206 return rc;
1207}
1208
1209static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1210{
1211 int rc;
1212
847a50fd 1213 QETH_CARD_TEXT(card, 3, "stmcast");
4a71df50
FB		 1214
1215 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
74eacdb9
FB		 1216 dev_info(&card->gdev->dev,
1217 "Multicast not supported on %s\n",
1218 QETH_CARD_IFNAME(card));
4a71df50
FB		 1219 return -EOPNOTSUPP;
1220 }
1221
1222 rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1223 IPA_CMD_ASS_START, 0);
1224 if (rc) {
74eacdb9
FB		 1225 dev_warn(&card->gdev->dev,
1226 "Starting multicast support for %s failed\n",
1227 QETH_CARD_IFNAME(card));
4a71df50 1228 } else {
74eacdb9 1229 dev_info(&card->gdev->dev, "Multicast enabled\n");
4a71df50
FB		 1230 card->dev->flags |= IFF_MULTICAST;
1231 }
1232 return rc;
1233}
1234
4a71df50
FB		 1235#ifdef CONFIG_QETH_IPV6
1236static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1237{
1238 int rc;
1239
847a50fd 1240 QETH_CARD_TEXT(card, 3, "softipv6");
4a71df50
FB		 1241
1242 if (card->info.type == QETH_CARD_TYPE_IQD)
1243 goto out;
1244
1da74b1c 1245 rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
4a71df50 1246 if (rc) {
74eacdb9
FB		 1247 dev_err(&card->gdev->dev,
1248 "Activating IPv6 support for %s failed\n",
1249 QETH_CARD_IFNAME(card));
4a71df50
FB		 1250 return rc;
1251 }
1252 rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1253 IPA_CMD_ASS_START, 3);
1254 if (rc) {
74eacdb9
FB		 1255 dev_err(&card->gdev->dev,
1256 "Activating IPv6 support for %s failed\n",
1257 QETH_CARD_IFNAME(card));
4a71df50
FB		 1258 return rc;
1259 }
1260 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1261 IPA_CMD_ASS_START);
1262 if (rc) {
74eacdb9
FB		 1263 dev_err(&card->gdev->dev,
1264 "Activating IPv6 support for %s failed\n",
1265 QETH_CARD_IFNAME(card));
4a71df50
FB		 1266 return rc;
1267 }
1268 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1269 IPA_CMD_ASS_START);
1270 if (rc) {
74eacdb9
FB		 1271 dev_warn(&card->gdev->dev,
1272 "Enabling the passthrough mode for %s failed\n",
1273 QETH_CARD_IFNAME(card));
4a71df50
FB		 1274 return rc;
1275 }
1276out:
74eacdb9 1277 dev_info(&card->gdev->dev, "IPV6 enabled\n");
4a71df50
FB		 1278 return 0;
1279}
1280#endif
1281
1282static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1283{
1284 int rc = 0;
1285
847a50fd 1286 QETH_CARD_TEXT(card, 3, "strtipv6");
4a71df50
FB		 1287
1288 if (!qeth_is_supported(card, IPA_IPV6)) {
74eacdb9
FB		 1289 dev_info(&card->gdev->dev,
1290 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1291 return 0;
1292 }
1293#ifdef CONFIG_QETH_IPV6
1294 rc = qeth_l3_softsetup_ipv6(card);
1295#endif
1296 return rc ;
1297}
1298
1299static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1300{
1301 int rc;
1302
847a50fd 1303 QETH_CARD_TEXT(card, 3, "stbrdcst");
4a71df50
FB		 1304 card->info.broadcast_capable = 0;
1305 if (!qeth_is_supported(card, IPA_FILTERING)) {
74eacdb9
FB		 1306 dev_info(&card->gdev->dev,
1307 "Broadcast not supported on %s\n",
1308 QETH_CARD_IFNAME(card));
4a71df50
FB		 1309 rc = -EOPNOTSUPP;
1310 goto out;
1311 }
1312 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1313 IPA_CMD_ASS_START, 0);
1314 if (rc) {
74eacdb9
FB		 1315 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1316 "%s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1317 goto out;
1318 }
1319
1320 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1321 IPA_CMD_ASS_CONFIGURE, 1);
1322 if (rc) {
74eacdb9
FB		 1323 dev_warn(&card->gdev->dev,
1324 "Setting up broadcast filtering for %s failed\n",
1325 QETH_CARD_IFNAME(card));
4a71df50
FB		 1326 goto out;
1327 }
1328 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
74eacdb9 1329 dev_info(&card->gdev->dev, "Broadcast enabled\n");
4a71df50
FB		 1330 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1331 IPA_CMD_ASS_ENABLE, 1);
1332 if (rc) {
74eacdb9
FB		 1333 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1334 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1335 goto out;
1336 }
1337 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1338out:
1339 if (card->info.broadcast_capable)
1340 card->dev->flags |= IFF_BROADCAST;
1341 else
1342 card->dev->flags &= ~IFF_BROADCAST;
1343 return rc;
1344}
1345
1346static int qeth_l3_send_checksum_command(struct qeth_card *card)
1347{
1348 int rc;
1349
1350 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1351 IPA_CMD_ASS_START, 0);
1352 if (rc) {
74eacdb9
FB		 1353 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1354 "failed, using SW checksumming\n",
1355 QETH_CARD_IFNAME(card));
4a71df50
FB		 1356 return rc;
1357 }
1358 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1359 IPA_CMD_ASS_ENABLE,
1360 card->info.csum_mask);
1361 if (rc) {
74eacdb9
FB		 1362 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1363 "failed, using SW checksumming\n",
1364 QETH_CARD_IFNAME(card));
4a71df50
FB		 1365 return rc;
1366 }
1367 return 0;
1368}
1369
c4736d96 1370static int qeth_l3_set_rx_csum(struct qeth_card *card, int on)
3fd434d8
FB		 1371{
1372 int rc = 0;
1373
c5e631a8 1374 if (on) {
60a34277
FB		 1375 rc = qeth_l3_send_checksum_command(card);
1376 if (rc)
1377 return -EIO;
1378 dev_info(&card->gdev->dev,
1379 "HW Checksumming (inbound) enabled\n");
3fd434d8 1380 } else {
60a34277
FB		 1381 rc = qeth_l3_send_simple_setassparms(card,
1382 IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
1383 if (rc)
1384 return -EIO;
3fd434d8 1385 }
c5e631a8 1386
60a34277 1387 return 0;
3fd434d8
FB		 1388}
1389
4a71df50
FB		 1390static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1391{
847a50fd 1392 QETH_CARD_TEXT(card, 3, "strtcsum");
4a71df50 1393
c5e631a8 1394 if (card->dev->features & NETIF_F_RXCSUM) {
60a34277
FB		 1395 rtnl_lock();
1396 /* force set_features call */
1397 card->dev->features &= ~NETIF_F_RXCSUM;
1398 netdev_update_features(card->dev);
1399 rtnl_unlock();
1400 }
c5e631a8 1401 return 0;
4a71df50
FB		 1402}
1403
f6b85b6c
FB		 1404static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1405{
1406 int rc = 0;
1407
1408 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1409 return rc;
1410 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1411 IPA_CMD_ASS_START, 0);
1412 if (rc)
1413 goto err_out;
1414 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1415 IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
1416 if (rc)
1417 goto err_out;
1418 dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
1419 return rc;
1420err_out:
1421 dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
1422 "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
1423 return rc;
1424}
1425
4a71df50
FB		 1426static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1427{
1428 int rc;
1429
847a50fd 1430 QETH_CARD_TEXT(card, 3, "sttso");
4a71df50
FB		 1431
1432 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
74eacdb9
FB		 1433 dev_info(&card->gdev->dev,
1434 "Outbound TSO not supported on %s\n",
1435 QETH_CARD_IFNAME(card));
4a71df50
FB		 1436 rc = -EOPNOTSUPP;
1437 } else {
1438 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1439 IPA_CMD_ASS_START, 0);
1440 if (rc)
74eacdb9
FB		 1441 dev_warn(&card->gdev->dev, "Starting outbound TCP "
1442 "segmentation offload for %s failed\n",
1443 QETH_CARD_IFNAME(card));
4a71df50 1444 else
74eacdb9
FB		 1445 dev_info(&card->gdev->dev,
1446 "Outbound TSO enabled\n");
4a71df50 1447 }
6204b47e
MM		 1448 if (rc)
1449 card->dev->features &= ~NETIF_F_TSO;
4a71df50
FB		 1450 return rc;
1451}
1452
1453static int qeth_l3_start_ipassists(struct qeth_card *card)
1454{
847a50fd 1455 QETH_CARD_TEXT(card, 3, "strtipas");
d64ecc22 1456
0f54761d
SR		 1457 if (qeth_set_access_ctrl_online(card, 0))
1458 return -EIO;
4a71df50
FB		 1459 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1460 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1461 qeth_l3_start_ipa_source_mac(card); /* go on*/
1462 qeth_l3_start_ipa_vlan(card); /* go on*/
1463 qeth_l3_start_ipa_multicast(card); /* go on*/
1464 qeth_l3_start_ipa_ipv6(card); /* go on*/
1465 qeth_l3_start_ipa_broadcast(card); /* go on*/
1466 qeth_l3_start_ipa_checksum(card); /* go on*/
f6b85b6c 1467 qeth_l3_start_ipa_tx_checksum(card);
4a71df50
FB		 1468 qeth_l3_start_ipa_tso(card); /* go on*/
1469 return 0;
1470}
1471
4a71df50
FB		 1472static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1473 struct qeth_reply *reply, unsigned long data)
1474{
1475 struct qeth_ipa_cmd *cmd;
1476
1477 cmd = (struct qeth_ipa_cmd *) data;
1478 if (cmd->hdr.return_code == 0)
1479 memcpy(card->dev->dev_addr,
1480 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1481 else
1833611d 1482 eth_random_addr(card->dev->dev_addr);
4a71df50
FB		 1483
1484 return 0;
1485}
1486
1487static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1488{
1489 int rc = 0;
1490 struct qeth_cmd_buffer *iob;
1491 struct qeth_ipa_cmd *cmd;
1492
d11ba0c4 1493 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
4a71df50
FB		 1494
1495 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1496 QETH_PROT_IPV6);
1497 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1498 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1499 card->info.unique_id;
1500
1501 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1502 NULL);
1503 return rc;
1504}
1505
1506static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1507 struct qeth_reply *reply, unsigned long data)
1508{
1509 struct qeth_ipa_cmd *cmd;
1510
1511 cmd = (struct qeth_ipa_cmd *) data;
1512 if (cmd->hdr.return_code == 0)
1513 card->info.unique_id = *((__u16 *)
1514 &cmd->data.create_destroy_addr.unique_id[6]);
1515 else {
1516 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1517 UNIQUE_ID_NOT_BY_CARD;
74eacdb9
FB		 1518 dev_warn(&card->gdev->dev, "The network adapter failed to "
1519 "generate a unique ID\n");
4a71df50
FB		 1520 }
1521 return 0;
1522}
1523
1524static int qeth_l3_get_unique_id(struct qeth_card *card)
1525{
1526 int rc = 0;
1527 struct qeth_cmd_buffer *iob;
1528 struct qeth_ipa_cmd *cmd;
1529
d11ba0c4 1530 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
4a71df50
FB		 1531
1532 if (!qeth_is_supported(card, IPA_IPV6)) {
1533 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1534 UNIQUE_ID_NOT_BY_CARD;
1535 return 0;
1536 }
1537
1538 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1539 QETH_PROT_IPV6);
1540 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1541 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1542 card->info.unique_id;
1543
1544 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1545 return rc;
1546}
1547
76b11f8e
UB		 1548static int
1549qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1550 unsigned long data)
1551{
1552 struct qeth_ipa_cmd *cmd;
1553 __u16 rc;
1554
1555 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1556
1557 cmd = (struct qeth_ipa_cmd *)data;
1558 rc = cmd->hdr.return_code;
a959189a 1559 if (rc)
847a50fd 1560 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
76b11f8e
UB		 1561 switch (cmd->data.diagass.action) {
1562 case QETH_DIAGS_CMD_TRACE_QUERY:
1563 break;
1564 case QETH_DIAGS_CMD_TRACE_DISABLE:
a959189a
UB		 1565 switch (rc) {
1566 case 0:
1567 case IPA_RC_INVALID_SUBCMD:
1568 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1569 dev_info(&card->gdev->dev, "The HiperSockets network "
1570 "traffic analyzer is deactivated\n");
1571 break;
1572 default:
1573 break;
1574 }
76b11f8e
UB		 1575 break;
1576 case QETH_DIAGS_CMD_TRACE_ENABLE:
a959189a
UB		 1577 switch (rc) {
1578 case 0:
1579 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1580 dev_info(&card->gdev->dev, "The HiperSockets network "
1581 "traffic analyzer is activated\n");
1582 break;
1583 case IPA_RC_HARDWARE_AUTH_ERROR:
1584 dev_warn(&card->gdev->dev, "The device is not "
1585 "authorized to run as a HiperSockets network "
1586 "traffic analyzer\n");
1587 break;
1588 case IPA_RC_TRACE_ALREADY_ACTIVE:
1589 dev_warn(&card->gdev->dev, "A HiperSockets "
1590 "network traffic analyzer is already "
1591 "active in the HiperSockets LAN\n");
1592 break;
1593 default:
1594 break;
1595 }
76b11f8e
UB		 1596 break;
1597 default:
1598 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1599 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1600 }
1601
1602 return 0;
1603}
1604
1605static int
1606qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1607{
1608 struct qeth_cmd_buffer *iob;
1609 struct qeth_ipa_cmd *cmd;
1610
1611 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1612
1613 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1614 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1615 cmd->data.diagass.subcmd_len = 16;
1616 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1617 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1618 cmd->data.diagass.action = diags_cmd;
1619 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1620}
1621
4a71df50
FB		 1622static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1623 struct net_device *dev)
1624{
1abd2296 1625 ip_eth_mc_map(ipm, mac);
4a71df50
FB		 1626}
1627
1628static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1629{
1630 struct qeth_ipaddr *ipm;
1631 struct ip_mc_list *im4;
1632 char buf[MAX_ADDR_LEN];
1633
847a50fd 1634 QETH_CARD_TEXT(card, 4, "addmc");
f3aa3136
SS		 1635 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1636 im4 = rcu_dereference(im4->next_rcu)) {
4a71df50
FB		 1637 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1638 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1639 if (!ipm)
1640 continue;
1641 ipm->u.a4.addr = im4->multiaddr;
1642 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1643 ipm->is_multicast = 1;
1644 if (!qeth_l3_add_ip(card, ipm))
1645 kfree(ipm);
1646 }
1647}
1648
0347af51 1649/* called with rcu_read_lock */
4a71df50
FB		 1650static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1651{
1652 struct in_device *in_dev;
7ff0bcf6 1653 u16 vid;
4a71df50 1654
847a50fd 1655 QETH_CARD_TEXT(card, 4, "addmcvl");
7ff0bcf6 1656 if (!qeth_is_supported(card, IPA_FULL_VLAN))
4a71df50
FB		 1657 return;
1658
7ff0bcf6
JP		 1659 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1660 struct net_device *netdev;
1661
7ff0bcf6 1662 netdev = __vlan_find_dev_deep(card->dev, vid);
4a71df50
FB		 1663 if (netdev == NULL ||
1664 !(netdev->flags & IFF_UP))
1665 continue;
0347af51 1666 in_dev = __in_dev_get_rcu(netdev);
4a71df50
FB		 1667 if (!in_dev)
1668 continue;
4a71df50 1669 qeth_l3_add_mc(card, in_dev);
4a71df50
FB		 1670 }
1671}
1672
1673static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1674{
1675 struct in_device *in4_dev;
1676
847a50fd 1677 QETH_CARD_TEXT(card, 4, "chkmcv4");
f3aa3136 1678 rcu_read_lock();
0347af51
JP		 1679 in4_dev = __in_dev_get_rcu(card->dev);
1680 if (in4_dev == NULL)
1681 goto unlock;
4a71df50
FB		 1682 qeth_l3_add_mc(card, in4_dev);
1683 qeth_l3_add_vlan_mc(card);
0347af51 1684unlock:
f3aa3136 1685 rcu_read_unlock();
4a71df50
FB		 1686}
1687
1688#ifdef CONFIG_QETH_IPV6
1689static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1690{
1691 struct qeth_ipaddr *ipm;
1692 struct ifmcaddr6 *im6;
1693 char buf[MAX_ADDR_LEN];
1694
847a50fd 1695 QETH_CARD_TEXT(card, 4, "addmc6");
4a71df50
FB		 1696 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1697 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1698 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1699 if (!ipm)
1700 continue;
1701 ipm->is_multicast = 1;
1702 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1703 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1704 sizeof(struct in6_addr));
1705 if (!qeth_l3_add_ip(card, ipm))
1706 kfree(ipm);
1707 }
1708}
1709
0347af51 1710/* called with rcu_read_lock */
4a71df50
FB		 1711static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1712{
1713 struct inet6_dev *in_dev;
7ff0bcf6 1714 u16 vid;
4a71df50 1715
847a50fd 1716 QETH_CARD_TEXT(card, 4, "admc6vl");
7ff0bcf6 1717 if (!qeth_is_supported(card, IPA_FULL_VLAN))
4a71df50
FB		 1718 return;
1719
7ff0bcf6
JP		 1720 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1721 struct net_device *netdev;
1722
1723 netdev = __vlan_find_dev_deep(card->dev, vid);
4a71df50
FB		 1724 if (netdev == NULL ||
1725 !(netdev->flags & IFF_UP))
1726 continue;
1727 in_dev = in6_dev_get(netdev);
1728 if (!in_dev)
1729 continue;
1730 read_lock_bh(&in_dev->lock);
1731 qeth_l3_add_mc6(card, in_dev);
1732 read_unlock_bh(&in_dev->lock);
1733 in6_dev_put(in_dev);
1734 }
1735}
1736
1737static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1738{
1739 struct inet6_dev *in6_dev;
1740
847a50fd 1741 QETH_CARD_TEXT(card, 4, "chkmcv6");
4a71df50
FB		 1742 if (!qeth_is_supported(card, IPA_IPV6))
1743 return ;
1744 in6_dev = in6_dev_get(card->dev);
1745 if (in6_dev == NULL)
1746 return;
0347af51 1747 rcu_read_lock();
4a71df50
FB		 1748 read_lock_bh(&in6_dev->lock);
1749 qeth_l3_add_mc6(card, in6_dev);
1750 qeth_l3_add_vlan_mc6(card);
1751 read_unlock_bh(&in6_dev->lock);
0347af51 1752 rcu_read_unlock();
4a71df50
FB		 1753 in6_dev_put(in6_dev);
1754}
1755#endif /* CONFIG_QETH_IPV6 */
1756
1757static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1758 unsigned short vid)
1759{
1760 struct in_device *in_dev;
1761 struct in_ifaddr *ifa;
1762 struct qeth_ipaddr *addr;
7ff0bcf6 1763 struct net_device *netdev;
4a71df50 1764
847a50fd 1765 QETH_CARD_TEXT(card, 4, "frvaddr4");
4a71df50 1766
7ff0bcf6 1767 netdev = __vlan_find_dev_deep(card->dev, vid);
eabfbe62 1768 if (!netdev)
1769 return;
7ff0bcf6 1770 in_dev = in_dev_get(netdev);
4a71df50
FB		 1771 if (!in_dev)
1772 return;
1773 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1774 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1775 if (addr) {
1776 addr->u.a4.addr = ifa->ifa_address;
1777 addr->u.a4.mask = ifa->ifa_mask;
1778 addr->type = QETH_IP_TYPE_NORMAL;
1779 if (!qeth_l3_delete_ip(card, addr))
1780 kfree(addr);
1781 }
1782 }
1783 in_dev_put(in_dev);
1784}
1785
1786static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1787 unsigned short vid)
1788{
1789#ifdef CONFIG_QETH_IPV6
1790 struct inet6_dev *in6_dev;
1791 struct inet6_ifaddr *ifa;
1792 struct qeth_ipaddr *addr;
7ff0bcf6 1793 struct net_device *netdev;
4a71df50 1794
847a50fd 1795 QETH_CARD_TEXT(card, 4, "frvaddr6");
4a71df50 1796
7ff0bcf6 1797 netdev = __vlan_find_dev_deep(card->dev, vid);
eabfbe62 1798 if (!netdev)
1799 return;
7ff0bcf6 1800 in6_dev = in6_dev_get(netdev);
4a71df50
FB		 1801 if (!in6_dev)
1802 return;
70f60a22 1803 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
4a71df50
FB		 1804 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1805 if (addr) {
1806 memcpy(&addr->u.a6.addr, &ifa->addr,
1807 sizeof(struct in6_addr));
1808 addr->u.a6.pfxlen = ifa->prefix_len;
1809 addr->type = QETH_IP_TYPE_NORMAL;
1810 if (!qeth_l3_delete_ip(card, addr))
1811 kfree(addr);
1812 }
1813 }
1814 in6_dev_put(in6_dev);
1815#endif /* CONFIG_QETH_IPV6 */
1816}
1817
1818static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1819 unsigned short vid)
1820{
0347af51 1821 rcu_read_lock();
4a71df50
FB		 1822 qeth_l3_free_vlan_addresses4(card, vid);
1823 qeth_l3_free_vlan_addresses6(card, vid);
0347af51 1824 rcu_read_unlock();
4a71df50
FB		 1825}
1826
80d5c368
PM		 1827static int qeth_l3_vlan_rx_add_vid(struct net_device *dev,
1828 __be16 proto, u16 vid)
4a71df50 1829{
509e2562 1830 struct qeth_card *card = dev->ml_priv;
4a71df50 1831
7ff0bcf6 1832 set_bit(vid, card->active_vlans);
8e586137 1833 return 0;
4a71df50
FB		 1834}
1835
80d5c368
PM		 1836static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
1837 __be16 proto, u16 vid)
4a71df50 1838{
509e2562 1839 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 1840 unsigned long flags;
1841
847a50fd 1842 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
8e98ac48 1843 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 1844 QETH_CARD_TEXT(card, 3, "kidREC");
8e586137 1845 return 0;
8e98ac48 1846 }
4a71df50
FB		 1847 spin_lock_irqsave(&card->vlanlock, flags);
1848 /* unregister IP addresses of vlan device */
1849 qeth_l3_free_vlan_addresses(card, vid);
7ff0bcf6 1850 clear_bit(vid, card->active_vlans);
4a71df50
FB		 1851 spin_unlock_irqrestore(&card->vlanlock, flags);
1852 qeth_l3_set_multicast_list(card->dev);
8e586137 1853 return 0;
4a71df50
FB		 1854}
1855
10651db7
UB		 1856static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1857 struct sk_buff *skb, struct qeth_hdr *hdr,
1858 unsigned short *vlan_id)
4a71df50 1859{
4a71df50
FB		 1860 __be16 prot;
1861 struct iphdr *ip_hdr;
1862 unsigned char tg_addr[MAX_ADDR_LEN];
10651db7 1863 int is_vlan = 0;
4a71df50
FB		 1864
1865 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1866 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1867 ETH_P_IP);
1868 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1869 case QETH_CAST_MULTICAST:
1870 switch (prot) {
1871#ifdef CONFIG_QETH_IPV6
1872 case __constant_htons(ETH_P_IPV6):
1873 ndisc_mc_map((struct in6_addr *)
1874 skb->data + 24,
1875 tg_addr, card->dev, 0);
1876 break;
1877#endif
1878 case __constant_htons(ETH_P_IP):
1879 ip_hdr = (struct iphdr *)skb->data;
4a71df50
FB		 1880 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1881 break;
1882 default:
1883 memcpy(tg_addr, card->dev->broadcast,
1884 card->dev->addr_len);
1885 }
1886 card->stats.multicast++;
1887 skb->pkt_type = PACKET_MULTICAST;
1888 break;
1889 case QETH_CAST_BROADCAST:
1890 memcpy(tg_addr, card->dev->broadcast,
1891 card->dev->addr_len);
1892 card->stats.multicast++;
1893 skb->pkt_type = PACKET_BROADCAST;
1894 break;
1895 case QETH_CAST_UNICAST:
1896 case QETH_CAST_ANYCAST:
1897 case QETH_CAST_NOCAST:
1898 default:
76b11f8e
UB		 1899 if (card->options.sniffer)
1900 skb->pkt_type = PACKET_OTHERHOST;
1901 else
1902 skb->pkt_type = PACKET_HOST;
4a71df50
FB		 1903 memcpy(tg_addr, card->dev->dev_addr,
1904 card->dev->addr_len);
1905 }
fe94e2e0
UB		 1906 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1907 card->dev->header_ops->create(skb, card->dev, prot,
1908 tg_addr, &hdr->hdr.l3.dest_addr[2],
1909 card->dev->addr_len);
1910 else
1911 card->dev->header_ops->create(skb, card->dev, prot,
1912 tg_addr, "FAKELL", card->dev->addr_len);
4a71df50
FB		 1913 }
1914
1abd2296 1915 skb->protocol = eth_type_trans(skb, card->dev);
4a71df50
FB		 1916
1917 if (hdr->hdr.l3.ext_flags &
1918 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
10651db7 1919 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
4a71df50 1920 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
10651db7 1921 is_vlan = 1;
4a71df50
FB		 1922 }
1923
c5e631a8 1924 if (card->dev->features & NETIF_F_RXCSUM) {
4a71df50 1925 if ((hdr->hdr.l3.ext_flags &
b9139800
UB		 1926 (QETH_HDR_EXT_CSUM_HDR_REQ |
1927 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1928 (QETH_HDR_EXT_CSUM_HDR_REQ |
1929 QETH_HDR_EXT_CSUM_TRANSP_REQ))
4a71df50
FB		 1930 skb->ip_summed = CHECKSUM_UNNECESSARY;
1931 else
b9139800 1932 skb->ip_summed = CHECKSUM_NONE;
c5e631a8
FB		 1933 } else
1934 skb->ip_summed = CHECKSUM_NONE;
4a71df50 1935
10651db7 1936 return is_vlan;
4a71df50
FB		 1937}
1938
a1c3ed4c
FB		 1939static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1940 int budget, int *done)
4a71df50 1941{
a1c3ed4c 1942 int work_done = 0;
4a71df50
FB		 1943 struct sk_buff *skb;
1944 struct qeth_hdr *hdr;
4a71df50 1945 __u16 vlan_tag = 0;
10651db7 1946 int is_vlan;
4a71df50 1947 unsigned int len;
b3332930 1948 __u16 magic;
4a71df50 1949
a1c3ed4c 1950 *done = 0;
18af5c17 1951 WARN_ON_ONCE(!budget);
a1c3ed4c
FB		 1952 while (budget) {
1953 skb = qeth_core_get_next_skb(card,
b3332930 1954 &card->qdio.in_q->bufs[card->rx.b_index],
a1c3ed4c
FB		 1955 &card->rx.b_element, &card->rx.e_offset, &hdr);
1956 if (!skb) {
1957 *done = 1;
1958 break;
1959 }
1960 skb->dev = card->dev;
4a71df50
FB		 1961 switch (hdr->hdr.l3.id) {
1962 case QETH_HEADER_TYPE_LAYER3:
b3332930
FB		 1963 magic = *(__u16 *)skb->data;
1964 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
1965 (magic == ETH_P_AF_IUCV)) {
1966 skb->protocol = ETH_P_AF_IUCV;
1967 skb->pkt_type = PACKET_HOST;
1968 skb->mac_header = NET_SKB_PAD;
1969 skb->dev = card->dev;
1970 len = skb->len;
1971 card->dev->header_ops->create(skb, card->dev, 0,
1972 card->dev->dev_addr, "FAKELL",
1973 card->dev->addr_len);
1974 netif_receive_skb(skb);
1975 } else {
1976 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
10651db7 1977 &vlan_tag);
b3332930
FB		 1978 len = skb->len;
1979 if (is_vlan && !card->options.sniffer)
1980 __vlan_hwaccel_put_tag(skb, vlan_tag);
1981 napi_gro_receive(&card->napi, skb);
1982 }
4a71df50 1983 break;
76b11f8e
UB		 1984 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
1985 skb->pkt_type = PACKET_HOST;
1986 skb->protocol = eth_type_trans(skb, skb->dev);
76b11f8e
UB		 1987 len = skb->len;
1988 netif_receive_skb(skb);
1989 break;
4a71df50
FB		 1990 default:
1991 dev_kfree_skb_any(skb);
847a50fd 1992 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 1993 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 1994 continue;
1995 }
a1c3ed4c
FB		 1996 work_done++;
1997 budget--;
4a71df50
FB		 1998 card->stats.rx_packets++;
1999 card->stats.rx_bytes += len;
2000 }
a1c3ed4c
FB		 2001 return work_done;
2002}
2003
2004static int qeth_l3_poll(struct napi_struct *napi, int budget)
2005{
2006 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
2007 int work_done = 0;
2008 struct qeth_qdio_buffer *buffer;
2009 int done;
2010 int new_budget = budget;
2011
2012 if (card->options.performance_stats) {
2013 card->perf_stats.inbound_cnt++;
2014 card->perf_stats.inbound_start_time = qeth_get_micros();
2015 }
2016
2017 while (1) {
2018 if (!card->rx.b_count) {
2019 card->rx.qdio_err = 0;
2020 card->rx.b_count = qdio_get_next_buffers(
2021 card->data.ccwdev, 0, &card->rx.b_index,
2022 &card->rx.qdio_err);
2023 if (card->rx.b_count <= 0) {
2024 card->rx.b_count = 0;
2025 break;
2026 }
2027 card->rx.b_element =
2028 &card->qdio.in_q->bufs[card->rx.b_index]
2029 .buffer->element[0];
2030 card->rx.e_offset = 0;
2031 }
2032
2033 while (card->rx.b_count) {
2034 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
2035 if (!(card->rx.qdio_err &&
2036 qeth_check_qdio_errors(card, buffer->buffer,
2037 card->rx.qdio_err, "qinerr")))
2038 work_done += qeth_l3_process_inbound_buffer(
2039 card, new_budget, &done);
2040 else
2041 done = 1;
2042
2043 if (done) {
2044 if (card->options.performance_stats)
2045 card->perf_stats.bufs_rec++;
2046 qeth_put_buffer_pool_entry(card,
2047 buffer->pool_entry);
2048 qeth_queue_input_buffer(card, card->rx.b_index);
2049 card->rx.b_count--;
2050 if (card->rx.b_count) {
2051 card->rx.b_index =
2052 (card->rx.b_index + 1) %
2053 QDIO_MAX_BUFFERS_PER_Q;
2054 card->rx.b_element =
2055 &card->qdio.in_q
2056 ->bufs[card->rx.b_index]
2057 .buffer->element[0];
2058 card->rx.e_offset = 0;
2059 }
2060 }
2061
2062 if (work_done >= budget)
2063 goto out;
2064 else
2065 new_budget = budget - work_done;
2066 }
2067 }
2068
2069 napi_complete(napi);
2070 if (qdio_start_irq(card->data.ccwdev, 0))
2071 napi_schedule(&card->napi);
2072out:
2073 if (card->options.performance_stats)
2074 card->perf_stats.inbound_time += qeth_get_micros() -
2075 card->perf_stats.inbound_start_time;
2076 return work_done;
4a71df50
FB		 2077}
2078
2079static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2080 struct qeth_card *card)
2081{
2082 int rc = 0;
7ff0bcf6 2083 u16 vid;
4a71df50 2084
7ff0bcf6
JP		 2085 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
2086 struct net_device *netdev;
4a71df50 2087
7ff0bcf6 2088 rcu_read_lock();
6d8823db 2089 netdev = __vlan_find_dev_deep(card->dev, vid);
7ff0bcf6
JP		 2090 rcu_read_unlock();
2091 if (netdev == dev) {
4a71df50
FB		 2092 rc = QETH_VLAN_CARD;
2093 break;
2094 }
2095 }
2096
509e2562 2097 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
4a71df50
FB		 2098 return 0;
2099
2100 return rc;
2101}
2102
2103static int qeth_l3_verify_dev(struct net_device *dev)
2104{
2105 struct qeth_card *card;
2106 unsigned long flags;
2107 int rc = 0;
2108
2109 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2110 list_for_each_entry(card, &qeth_core_card_list.list, list) {
2111 if (card->dev == dev) {
2112 rc = QETH_REAL_CARD;
2113 break;
2114 }
2115 rc = qeth_l3_verify_vlan_dev(dev, card);
2116 if (rc)
2117 break;
2118 }
2119 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2120
2121 return rc;
2122}
2123
2124static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2125{
2126 struct qeth_card *card = NULL;
2127 int rc;
2128
2129 rc = qeth_l3_verify_dev(dev);
2130 if (rc == QETH_REAL_CARD)
509e2562 2131 card = dev->ml_priv;
4a71df50 2132 else if (rc == QETH_VLAN_CARD)
509e2562 2133 card = vlan_dev_real_dev(dev)->ml_priv;
e5bd7be5 2134 if (card && card->options.layer2)
4a71df50 2135 card = NULL;
847a50fd
CO		 2136 if (card)
2137 QETH_CARD_TEXT_(card, 4, "%d", rc);
4a71df50
FB		 2138 return card ;
2139}
2140
2141static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2142{
2143 int rc = 0;
2144
d11ba0c4
PT		 2145 QETH_DBF_TEXT(SETUP, 2, "stopcard");
2146 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 2147
2148 qeth_set_allowed_threads(card, 0, 1);
76b11f8e
UB		 2149 if (card->options.sniffer &&
2150 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2151 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
4a71df50
FB		 2152 if (card->read.state == CH_STATE_UP &&
2153 card->write.state == CH_STATE_UP &&
2154 (card->state == CARD_STATE_UP)) {
2155 if (recovery_mode)
2156 qeth_l3_stop(card->dev);
8af7c5ae 2157 else {
869da90b
UB		 2158 rtnl_lock();
2159 dev_close(card->dev);
2160 rtnl_unlock();
8af7c5ae 2161 }
4a71df50
FB		 2162 card->state = CARD_STATE_SOFTSETUP;
2163 }
2164 if (card->state == CARD_STATE_SOFTSETUP) {
70919e23 2165 qeth_l3_clear_ip_list(card, 1);
4a71df50
FB		 2166 qeth_clear_ipacmd_list(card);
2167 card->state = CARD_STATE_HARDSETUP;
2168 }
2169 if (card->state == CARD_STATE_HARDSETUP) {
4a71df50
FB		 2170 qeth_qdio_clear_card(card, 0);
2171 qeth_clear_qdio_buffers(card);
2172 qeth_clear_working_pool_list(card);
2173 card->state = CARD_STATE_DOWN;
2174 }
2175 if (card->state == CARD_STATE_DOWN) {
2176 qeth_clear_cmd_buffers(&card->read);
2177 qeth_clear_cmd_buffers(&card->write);
2178 }
4a71df50
FB		 2179 return rc;
2180}
2181
76b11f8e
UB		 2182/*
2183 * test for and Switch promiscuous mode (on or off)
2184 * either for guestlan or HiperSocket Sniffer
2185 */
2186static void
2187qeth_l3_handle_promisc_mode(struct qeth_card *card)
2188{
2189 struct net_device *dev = card->dev;
2190
2191 if (((dev->flags & IFF_PROMISC) &&
2192 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2193 (!(dev->flags & IFF_PROMISC) &&
2194 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2195 return;
2196
2197 if (card->info.guestlan) { /* Guestlan trace */
2198 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2199 qeth_setadp_promisc_mode(card);
2200 } else if (card->options.sniffer && /* HiperSockets trace */
2201 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2202 if (dev->flags & IFF_PROMISC) {
847a50fd 2203 QETH_CARD_TEXT(card, 3, "+promisc");
76b11f8e
UB		 2204 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2205 } else {
847a50fd 2206 QETH_CARD_TEXT(card, 3, "-promisc");
76b11f8e
UB		 2207 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2208 }
2209 }
2210}
2211
4a71df50
FB		 2212static void qeth_l3_set_multicast_list(struct net_device *dev)
2213{
509e2562 2214 struct qeth_card *card = dev->ml_priv;
4a71df50 2215
847a50fd 2216 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 2217 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2218 (card->state != CARD_STATE_UP))
2219 return;
76b11f8e
UB		 2220 if (!card->options.sniffer) {
2221 qeth_l3_delete_mc_addresses(card);
2222 qeth_l3_add_multicast_ipv4(card);
4a71df50 2223#ifdef CONFIG_QETH_IPV6
76b11f8e 2224 qeth_l3_add_multicast_ipv6(card);
4a71df50 2225#endif
76b11f8e
UB		 2226 qeth_l3_set_ip_addr_list(card);
2227 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2228 return;
2229 }
2230 qeth_l3_handle_promisc_mode(card);
4a71df50
FB		 2231}
2232
2233static const char *qeth_l3_arp_get_error_cause(int *rc)
2234{
2235 switch (*rc) {
2236 case QETH_IPA_ARP_RC_FAILED:
2237 *rc = -EIO;
2238 return "operation failed";
2239 case QETH_IPA_ARP_RC_NOTSUPP:
2240 *rc = -EOPNOTSUPP;
2241 return "operation not supported";
2242 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2243 *rc = -EINVAL;
2244 return "argument out of range";
2245 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2246 *rc = -EOPNOTSUPP;
2247 return "query operation not supported";
2248 case QETH_IPA_ARP_RC_Q_NO_DATA:
2249 *rc = -ENOENT;
2250 return "no query data available";
2251 default:
2252 return "unknown error";
2253 }
2254}
2255
2256static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2257{
2258 int tmp;
2259 int rc;
2260
847a50fd 2261 QETH_CARD_TEXT(card, 3, "arpstnoe");
4a71df50
FB		 2262
2263 /*
2264 * currently GuestLAN only supports the ARP assist function
2265 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2266 * thus we say EOPNOTSUPP for this ARP function
2267 */
2268 if (card->info.guestlan)
2269 return -EOPNOTSUPP;
2270 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2271 return -EOPNOTSUPP;
2272 }
2273 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2274 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2275 no_entries);
2276 if (rc) {
2277 tmp = rc;
14cc21b6
FB		 2278 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2279 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2280 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2281 }
2282 return rc;
2283}
2284
d0ddf30f
EL		 2285static __u32 get_arp_entry_size(struct qeth_card *card,
2286 struct qeth_arp_query_data *qdata,
2287 struct qeth_arp_entrytype *type, __u8 strip_entries)
4a71df50 2288{
d0ddf30f
EL		 2289 __u32 rc;
2290 __u8 is_hsi;
4a71df50 2291
d0ddf30f
EL		 2292 is_hsi = qdata->reply_bits == 5;
2293 if (type->ip == QETHARP_IP_ADDR_V4) {
2294 QETH_CARD_TEXT(card, 4, "arpev4");
2295 if (strip_entries) {
2296 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2297 sizeof(struct qeth_arp_qi_entry7_short);
2298 } else {
2299 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2300 sizeof(struct qeth_arp_qi_entry7);
2301 }
2302 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2303 QETH_CARD_TEXT(card, 4, "arpev6");
2304 if (strip_entries) {
2305 rc = is_hsi ?
2306 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2307 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2308 } else {
2309 rc = is_hsi ?
2310 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2311 sizeof(struct qeth_arp_qi_entry7_ipv6);
2312 }
2313 } else {
2314 QETH_CARD_TEXT(card, 4, "arpinv");
2315 rc = 0;
4a71df50 2316 }
d0ddf30f
EL		 2317
2318 return rc;
2319}
2320
2321static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2322{
2323 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2324 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
4a71df50
FB		 2325}
2326
2327static int qeth_l3_arp_query_cb(struct qeth_card *card,
2328 struct qeth_reply *reply, unsigned long data)
2329{
2330 struct qeth_ipa_cmd *cmd;
2331 struct qeth_arp_query_data *qdata;
2332 struct qeth_arp_query_info *qinfo;
4a71df50 2333 int i;
d0ddf30f
EL		 2334 int e;
2335 int entrybytes_done;
2336 int stripped_bytes;
2337 __u8 do_strip_entries;
4a71df50 2338
d0ddf30f 2339 QETH_CARD_TEXT(card, 3, "arpquecb");
4a71df50
FB		 2340
2341 qinfo = (struct qeth_arp_query_info *) reply->param;
2342 cmd = (struct qeth_ipa_cmd *) data;
d0ddf30f 2343 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
4a71df50 2344 if (cmd->hdr.return_code) {
d0ddf30f
EL		 2345 QETH_CARD_TEXT(card, 4, "arpcberr");
2346 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2347 return 0;
2348 }
2349 if (cmd->data.setassparms.hdr.return_code) {
2350 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
d0ddf30f
EL		 2351 QETH_CARD_TEXT(card, 4, "setaperr");
2352 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2353 return 0;
2354 }
2355 qdata = &cmd->data.setassparms.data.query_arp;
847a50fd 2356 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
4a71df50 2357
d0ddf30f
EL		 2358 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2359 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2360 entrybytes_done = 0;
2361 for (e = 0; e < qdata->no_entries; ++e) {
2362 char *cur_entry;
2363 __u32 esize;
2364 struct qeth_arp_entrytype *etype;
2365
2366 cur_entry = &qdata->data + entrybytes_done;
2367 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2368 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2369 QETH_CARD_TEXT(card, 4, "pmis");
2370 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2371 break;
2372 }
2373 esize = get_arp_entry_size(card, qdata, etype,
2374 do_strip_entries);
2375 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2376 if (!esize)
2377 break;
2378
2379 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2380 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
e0a8114c 2381 cmd->hdr.return_code = IPA_RC_ENOMEM;
d0ddf30f
EL		 2382 goto out_error;
2383 }
4a71df50 2384
d0ddf30f
EL		 2385 memcpy(qinfo->udata + qinfo->udata_offset,
2386 &qdata->data + entrybytes_done + stripped_bytes,
2387 esize);
2388 entrybytes_done += esize + stripped_bytes;
2389 qinfo->udata_offset += esize;
2390 ++qinfo->no_entries;
2391 }
4a71df50
FB		 2392 /* check if all replies received ... */
2393 if (cmd->data.setassparms.hdr.seq_no <
2394 cmd->data.setassparms.hdr.number_of_replies)
2395 return 1;
d0ddf30f 2396 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
4a71df50
FB		 2397 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2398 /* keep STRIP_ENTRIES flag so the user program can distinguish
2399 * stripped entries from normal ones */
2400 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2401 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2402 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
d0ddf30f 2403 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
4a71df50
FB		 2404 return 0;
2405out_error:
2406 i = 0;
2407 memcpy(qinfo->udata, &i, 4);
2408 return 0;
2409}
2410
2411static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2412 struct qeth_cmd_buffer *iob, int len,
2413 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2414 unsigned long),
2415 void *reply_param)
2416{
847a50fd 2417 QETH_CARD_TEXT(card, 4, "sendarp");
4a71df50
FB		 2418
2419 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2420 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2421 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2422 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2423 reply_cb, reply_param);
2424}
2425
d0ddf30f
EL		 2426static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2427 enum qeth_prot_versions prot,
2428 struct qeth_arp_query_info *qinfo)
4a71df50
FB		 2429{
2430 struct qeth_cmd_buffer *iob;
d0ddf30f 2431 struct qeth_ipa_cmd *cmd;
4a71df50
FB		 2432 int tmp;
2433 int rc;
2434
d0ddf30f
EL		 2435 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2436
2437 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2438 IPA_CMD_ASS_ARP_QUERY_INFO,
2439 sizeof(struct qeth_arp_query_data) - sizeof(char),
2440 prot);
2441 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2442 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2443 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2444 cmd->data.setassparms.data.query_arp.no_entries = 0;
2445 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2446 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2447 qeth_l3_arp_query_cb, (void *)qinfo);
2448 if (rc) {
2449 tmp = rc;
2450 QETH_DBF_MESSAGE(2,
2451 "Error while querying ARP cache on %s: %s "
2452 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2453 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2454 }
2455
2456 return rc;
2457}
2458
2459static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2460{
2461 struct qeth_arp_query_info qinfo = {0, };
2462 int rc;
2463
847a50fd 2464 QETH_CARD_TEXT(card, 3, "arpquery");
4a71df50
FB		 2465
2466 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2467 IPA_ARP_PROCESSING)) {
d0ddf30f
EL		 2468 QETH_CARD_TEXT(card, 3, "arpqnsup");
2469 rc = -EOPNOTSUPP;
2470 goto out;
4a71df50
FB		 2471 }
2472 /* get size of userspace buffer and mask_bits -> 6 bytes */
d0ddf30f
EL		 2473 if (copy_from_user(&qinfo, udata, 6)) {
2474 rc = -EFAULT;
2475 goto out;
2476 }
4a71df50 2477 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
d0ddf30f
EL		 2478 if (!qinfo.udata) {
2479 rc = -ENOMEM;
2480 goto out;
2481 }
4a71df50 2482 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
d0ddf30f 2483 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
4a71df50 2484 if (rc) {
4a71df50
FB		 2485 if (copy_to_user(udata, qinfo.udata, 4))
2486 rc = -EFAULT;
d0ddf30f 2487 goto free_and_out;
4a71df50 2488 } else {
d0ddf30f
EL		 2489#ifdef CONFIG_QETH_IPV6
2490 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2491 /* fails in case of GuestLAN QDIO mode */
2492 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2493 &qinfo);
2494 }
2495#endif
2496 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2497 QETH_CARD_TEXT(card, 4, "qactf");
4a71df50 2498 rc = -EFAULT;
d0ddf30f
EL		 2499 goto free_and_out;
2500 }
2501 QETH_CARD_TEXT_(card, 4, "qacts");
4a71df50 2502 }
d0ddf30f 2503free_and_out:
4a71df50 2504 kfree(qinfo.udata);
d0ddf30f 2505out:
4a71df50
FB		 2506 return rc;
2507}
2508
2509static int qeth_l3_arp_add_entry(struct qeth_card *card,
2510 struct qeth_arp_cache_entry *entry)
2511{
2512 struct qeth_cmd_buffer *iob;
2513 char buf[16];
2514 int tmp;
2515 int rc;
2516
847a50fd 2517 QETH_CARD_TEXT(card, 3, "arpadent");
4a71df50
FB		 2518
2519 /*
2520 * currently GuestLAN only supports the ARP assist function
2521 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2522 * thus we say EOPNOTSUPP for this ARP function
2523 */
2524 if (card->info.guestlan)
2525 return -EOPNOTSUPP;
2526 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2527 return -EOPNOTSUPP;
2528 }
2529
2530 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2531 IPA_CMD_ASS_ARP_ADD_ENTRY,
2532 sizeof(struct qeth_arp_cache_entry),
2533 QETH_PROT_IPV4);
2534 rc = qeth_l3_send_setassparms(card, iob,
2535 sizeof(struct qeth_arp_cache_entry),
2536 (unsigned long) entry,
2537 qeth_l3_default_setassparms_cb, NULL);
2538 if (rc) {
2539 tmp = rc;
2540 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2541 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2542 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2543 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2544 }
2545 return rc;
2546}
2547
2548static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2549 struct qeth_arp_cache_entry *entry)
2550{
2551 struct qeth_cmd_buffer *iob;
2552 char buf[16] = {0, };
2553 int tmp;
2554 int rc;
2555
847a50fd 2556 QETH_CARD_TEXT(card, 3, "arprment");
4a71df50
FB		 2557
2558 /*
2559 * currently GuestLAN only supports the ARP assist function
2560 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2561 * thus we say EOPNOTSUPP for this ARP function
2562 */
2563 if (card->info.guestlan)
2564 return -EOPNOTSUPP;
2565 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2566 return -EOPNOTSUPP;
2567 }
2568 memcpy(buf, entry, 12);
2569 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2570 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2571 12,
2572 QETH_PROT_IPV4);
2573 rc = qeth_l3_send_setassparms(card, iob,
2574 12, (unsigned long)buf,
2575 qeth_l3_default_setassparms_cb, NULL);
2576 if (rc) {
2577 tmp = rc;
2578 memset(buf, 0, 16);
2579 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2580 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2581 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2582 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2583 }
2584 return rc;
2585}
2586
2587static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2588{
2589 int rc;
2590 int tmp;
2591
847a50fd 2592 QETH_CARD_TEXT(card, 3, "arpflush");
4a71df50
FB		 2593
2594 /*
2595 * currently GuestLAN only supports the ARP assist function
2596 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2597 * thus we say EOPNOTSUPP for this ARP function
2598 */
2599 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2600 return -EOPNOTSUPP;
2601 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2602 return -EOPNOTSUPP;
2603 }
2604 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2605 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2606 if (rc) {
2607 tmp = rc;
14cc21b6
FB		 2608 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2609 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2610 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2611 }
2612 return rc;
2613}
2614
2615static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2616{
509e2562 2617 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2618 struct qeth_arp_cache_entry arp_entry;
2619 struct mii_ioctl_data *mii_data;
2620 int rc = 0;
2621
2622 if (!card)
2623 return -ENODEV;
2624
2625 if ((card->state != CARD_STATE_UP) &&
2626 (card->state != CARD_STATE_SOFTSETUP))
2627 return -ENODEV;
2628
2629 switch (cmd) {
2630 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2631 if (!capable(CAP_NET_ADMIN)) {
2632 rc = -EPERM;
2633 break;
2634 }
2635 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2636 break;
2637 case SIOC_QETH_ARP_QUERY_INFO:
2638 if (!capable(CAP_NET_ADMIN)) {
2639 rc = -EPERM;
2640 break;
2641 }
2642 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2643 break;
2644 case SIOC_QETH_ARP_ADD_ENTRY:
2645 if (!capable(CAP_NET_ADMIN)) {
2646 rc = -EPERM;
2647 break;
2648 }
2649 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2650 sizeof(struct qeth_arp_cache_entry)))
2651 rc = -EFAULT;
2652 else
2653 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2654 break;
2655 case SIOC_QETH_ARP_REMOVE_ENTRY:
2656 if (!capable(CAP_NET_ADMIN)) {
2657 rc = -EPERM;
2658 break;
2659 }
2660 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2661 sizeof(struct qeth_arp_cache_entry)))
2662 rc = -EFAULT;
2663 else
2664 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2665 break;
2666 case SIOC_QETH_ARP_FLUSH_CACHE:
2667 if (!capable(CAP_NET_ADMIN)) {
2668 rc = -EPERM;
2669 break;
2670 }
2671 rc = qeth_l3_arp_flush_cache(card);
2672 break;
2673 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2674 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2675 break;
2676 case SIOC_QETH_GET_CARD_TYPE:
5113fec0
UB		 2677 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2678 card->info.type == QETH_CARD_TYPE_OSX) &&
4a71df50
FB		 2679 !card->info.guestlan)
2680 return 1;
2681 return 0;
2682 break;
2683 case SIOCGMIIPHY:
2684 mii_data = if_mii(rq);
2685 mii_data->phy_id = 0;
2686 break;
2687 case SIOCGMIIREG:
2688 mii_data = if_mii(rq);
2689 if (mii_data->phy_id != 0)
2690 rc = -EINVAL;
2691 else
2692 mii_data->val_out = qeth_mdio_read(dev,
2693 mii_data->phy_id,
2694 mii_data->reg_num);
2695 break;
c3ab96f3
FB		 2696 case SIOC_QETH_QUERY_OAT:
2697 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
2698 break;
4a71df50
FB		 2699 default:
2700 rc = -EOPNOTSUPP;
2701 }
2702 if (rc)
847a50fd 2703 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
4a71df50
FB		 2704 return rc;
2705}
2706
ce73e10e
KDW		 2707int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2708{
2709 int cast_type = RTN_UNSPEC;
69cce1d1
DM		 2710 struct neighbour *n = NULL;
2711 struct dst_entry *dst;
2712
1d36cb47 2713 rcu_read_lock();
69cce1d1
DM		 2714 dst = skb_dst(skb);
2715 if (dst)
24db1ba8 2716 n = dst_neigh_lookup_skb(dst, skb);
69cce1d1
DM		 2717 if (n) {
2718 cast_type = n->type;
1d36cb47 2719 rcu_read_unlock();
24db1ba8 2720 neigh_release(n);
ce73e10e
KDW		 2721 if ((cast_type == RTN_BROADCAST) ||
2722 (cast_type == RTN_MULTICAST) ||
2723 (cast_type == RTN_ANYCAST))
2724 return cast_type;
2725 else
2726 return RTN_UNSPEC;
2727 }
1d36cb47
FB		 2728 rcu_read_unlock();
2729
ce73e10e
KDW		 2730 /* try something else */
2731 if (skb->protocol == ETH_P_IPV6)
2732 return (skb_network_header(skb)[24] == 0xff) ?
2733 RTN_MULTICAST : 0;
2734 else if (skb->protocol == ETH_P_IP)
2735 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2736 RTN_MULTICAST : 0;
2737 /* ... */
2738 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2739 return RTN_BROADCAST;
2740 else {
2741 u16 hdr_mac;
2742
2743 hdr_mac = *((u16 *)skb->data);
2744 /* tr multicast? */
2745 switch (card->info.link_type) {
2746 case QETH_LINK_TYPE_HSTR:
2747 case QETH_LINK_TYPE_LANE_TR:
2748 if ((hdr_mac == QETH_TR_MAC_NC) ||
2749 (hdr_mac == QETH_TR_MAC_C))
2750 return RTN_MULTICAST;
2751 break;
2752 /* eth or so multicast? */
2753 default:
2754 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2755 (hdr_mac == QETH_ETH_MAC_V6))
2756 return RTN_MULTICAST;
2757 }
2758 }
2759 return cast_type;
2760}
2761
b3332930
FB		 2762static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
2763 struct qeth_hdr *hdr, struct sk_buff *skb)
2764{
2765 char daddr[16];
2766 struct af_iucv_trans_hdr *iucv_hdr;
2767
2768 skb_pull(skb, 14);
2769 card->dev->header_ops->create(skb, card->dev, 0,
2770 card->dev->dev_addr, card->dev->dev_addr,
2771 card->dev->addr_len);
2772 skb_pull(skb, 14);
2773 iucv_hdr = (struct af_iucv_trans_hdr *)skb->data;
2774 memset(hdr, 0, sizeof(struct qeth_hdr));
2775 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2776 hdr->hdr.l3.ext_flags = 0;
2777 hdr->hdr.l3.length = skb->len;
2778 hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
2779 memset(daddr, 0, sizeof(daddr));
2780 daddr[0] = 0xfe;
2781 daddr[1] = 0x80;
2782 memcpy(&daddr[8], iucv_hdr->destUserID, 8);
2783 memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
2784}
2785
4a71df50
FB		 2786static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2787 struct sk_buff *skb, int ipv, int cast_type)
2788{
69cce1d1
DM		 2789 struct dst_entry *dst;
2790
4a71df50
FB		 2791 memset(hdr, 0, sizeof(struct qeth_hdr));
2792 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2793 hdr->hdr.l3.ext_flags = 0;
2794
2795 /*
2796 * before we're going to overwrite this location with next hop ip.
2797 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2798 */
7ff0bcf6 2799 if (vlan_tx_tag_present(skb)) {
213298f8
FB		 2800 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2801 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2802 else
2803 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4a71df50
FB		 2804 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2805 }
2806
2807 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
1d36cb47
FB		 2808
2809 rcu_read_lock();
69cce1d1 2810 dst = skb_dst(skb);
4a71df50 2811 if (ipv == 4) {
87e7597b
DM		 2812 struct rtable *rt = (struct rtable *) dst;
2813 __be32 *pkey = &ip_hdr(skb)->daddr;
2814
2815 if (rt->rt_gateway)
2816 pkey = &rt->rt_gateway;
2817
4a71df50
FB		 2818 /* IPv4 */
2819 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2820 memset(hdr->hdr.l3.dest_addr, 0, 12);
87e7597b 2821 *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
4a71df50 2822 } else if (ipv == 6) {
87e7597b
DM		 2823 struct rt6_info *rt = (struct rt6_info *) dst;
2824 struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
2825
2826 if (!ipv6_addr_any(&rt->rt6i_gateway))
2827 pkey = &rt->rt6i_gateway;
2828
4a71df50
FB		 2829 /* IPv6 */
2830 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2831 if (card->info.type == QETH_CARD_TYPE_IQD)
2832 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
87e7597b 2833 memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
4a71df50 2834 } else {
1abd2296 2835 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4a71df50
FB		 2836 skb->dev->broadcast, 6)) {
2837 /* broadcast? */
2838 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2839 QETH_HDR_PASSTHRU;
2840 } else {
2841 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2842 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2843 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2844 }
2845 }
1d36cb47 2846 rcu_read_unlock();
4a71df50
FB		 2847}
2848
f6b85b6c
FB		 2849static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2850 struct qeth_hdr *hdr, struct sk_buff *skb)
2851{
2852 struct iphdr *iph = ip_hdr(skb);
2853
2854 /* tcph->check contains already the pseudo hdr checksum
2855 * so just set the header flags
2856 */
2857 if (iph->protocol == IPPROTO_UDP)
2858 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
16c0f936
FB		 2859 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2860 QETH_HDR_EXT_CSUM_HDR_REQ;
2861 iph->check = 0;
f6b85b6c
FB		 2862 if (card->options.performance_stats)
2863 card->perf_stats.tx_csum++;
2864}
2865
64ef8957
FB		 2866static void qeth_tso_fill_header(struct qeth_card *card,
2867 struct qeth_hdr *qhdr, struct sk_buff *skb)
2868{
2869 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2870 struct tcphdr *tcph = tcp_hdr(skb);
2871 struct iphdr *iph = ip_hdr(skb);
2872 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2873
2874 /*fix header to TSO values ...*/
2875 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
8fa9208e 2876 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
64ef8957
FB		 2877 /*set values which are fix for the first approach ...*/
2878 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2879 hdr->ext.imb_hdr_no = 1;
2880 hdr->ext.hdr_type = 1;
2881 hdr->ext.hdr_version = 1;
2882 hdr->ext.hdr_len = 28;
2883 /*insert non-fix values */
2884 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2885 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2886 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2887 sizeof(struct qeth_hdr_tso));
2888 tcph->check = 0;
2889 if (skb->protocol == ETH_P_IPV6) {
2890 ip6h->payload_len = 0;
2891 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2892 0, IPPROTO_TCP, 0);
2893 } else {
2894 /*OSA want us to set these values ...*/
2895 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2896 0, IPPROTO_TCP, 0);
2897 iph->tot_len = 0;
2898 iph->check = 0;
2899 }
2900}
2901
c3b4a740
FB		 2902static inline int qeth_l3_tso_elements(struct sk_buff *skb)
2903{
2904 unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
2905 tcp_hdr(skb)->doff * 4;
2906 int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
51aa165c 2907 int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
271648b4
FB		 2908
2909 elements += qeth_get_elements_for_frags(skb);
2910
c3b4a740
FB		 2911 return elements;
2912}
2913
4a71df50
FB		 2914static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2915{
2916 int rc;
2917 u16 *tag;
2918 struct qeth_hdr *hdr = NULL;
2919 int elements_needed = 0;
64ef8957 2920 int elems;
509e2562 2921 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2922 struct sk_buff *new_skb = NULL;
2923 int ipv = qeth_get_ip_version(skb);
ce73e10e 2924 int cast_type = qeth_l3_get_cast_type(card, skb);
4a71df50
FB		 2925 struct qeth_qdio_out_q *queue = card->qdio.out_qs
2926 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
2927 int tx_bytes = skb->len;
6204b47e 2928 bool large_send;
683d718a 2929 int data_offset = -1;
64ef8957 2930 int nr_frags;
4a71df50 2931
b3332930
FB		 2932 if (((card->info.type == QETH_CARD_TYPE_IQD) &&
2933 (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
2934 ((card->options.cq == QETH_CQ_ENABLED) &&
2935 (skb->protocol != ETH_P_AF_IUCV)))) ||
2936 card->options.sniffer)
4a71df50
FB		 2937 goto tx_drop;
2938
2939 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2940 card->stats.tx_carrier_errors++;
2941 goto tx_drop;
2942 }
2943
2944 if ((cast_type == RTN_BROADCAST) &&
2945 (card->info.broadcast_capable == 0))
2946 goto tx_drop;
2947
2948 if (card->options.performance_stats) {
2949 card->perf_stats.outbound_cnt++;
2950 card->perf_stats.outbound_start_time = qeth_get_micros();
2951 }
2952
6204b47e 2953 large_send = skb_is_gso(skb);
683d718a
FB		 2954
2955 if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
2956 (skb_shinfo(skb)->nr_frags == 0)) {
2957 new_skb = skb;
b3332930
FB		 2958 if (new_skb->protocol == ETH_P_AF_IUCV)
2959 data_offset = 0;
2960 else
2961 data_offset = ETH_HLEN;
683d718a
FB		 2962 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2963 if (!hdr)
2964 goto tx_drop;
2965 elements_needed++;
2966 } else {
2967 /* create a clone with writeable headroom */
2968 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2969 + VLAN_HLEN);
2970 if (!new_skb)
2971 goto tx_drop;
2972 }
4a71df50
FB		 2973
2974 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 2975 if (data_offset < 0)
2976 skb_pull(new_skb, ETH_HLEN);
4a71df50 2977 } else {
21fde749 2978 if (ipv == 4) {
1abd2296 2979 skb_pull(new_skb, ETH_HLEN);
4a71df50
FB		 2980 }
2981
7ff0bcf6 2982 if (ipv != 4 && vlan_tx_tag_present(new_skb)) {
4a71df50
FB		 2983 skb_push(new_skb, VLAN_HLEN);
2984 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2985 skb_copy_to_linear_data_offset(new_skb, 4,
2986 new_skb->data + 8, 4);
2987 skb_copy_to_linear_data_offset(new_skb, 8,
2988 new_skb->data + 12, 4);
2989 tag = (u16 *)(new_skb->data + 12);
2990 *tag = __constant_htons(ETH_P_8021Q);
2991 *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
4a71df50
FB		 2992 }
2993 }
2994
2995 netif_stop_queue(dev);
2996
4a71df50 2997 /* fix hardware limitation: as long as we do not have sbal
64ef8957 2998 * chaining we can not send long frag lists
4a71df50 2999 */
6204b47e 3000 if (large_send) {
c3b4a740
FB		 3001 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
3002 if (skb_linearize(new_skb))
3003 goto tx_drop;
3004 if (card->options.performance_stats)
3005 card->perf_stats.tx_lin++;
3006 }
64ef8957 3007 }
4a71df50 3008
6204b47e 3009 if (large_send && (cast_type == RTN_UNSPEC)) {
4a71df50
FB		 3010 hdr = (struct qeth_hdr *)skb_push(new_skb,
3011 sizeof(struct qeth_hdr_tso));
3012 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
3013 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
3014 qeth_tso_fill_header(card, hdr, new_skb);
3015 elements_needed++;
3016 } else {
683d718a
FB		 3017 if (data_offset < 0) {
3018 hdr = (struct qeth_hdr *)skb_push(new_skb,
4a71df50 3019 sizeof(struct qeth_hdr));
683d718a
FB		 3020 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3021 cast_type);
3022 } else {
b3332930
FB		 3023 if (new_skb->protocol == ETH_P_AF_IUCV)
3024 qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
3025 else {
3026 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3027 cast_type);
3028 hdr->hdr.l3.length = new_skb->len - data_offset;
3029 }
683d718a 3030 }
f6b85b6c
FB		 3031
3032 if (skb->ip_summed == CHECKSUM_PARTIAL)
3033 qeth_l3_hdr_csum(card, hdr, new_skb);
4a71df50
FB		 3034 }
3035
64ef8957 3036 elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
4a71df50 3037 elements_needed);
64ef8957
FB		 3038 if (!elems) {
3039 if (data_offset >= 0)
3040 kmem_cache_free(qeth_core_header_cache, hdr);
3041 goto tx_drop;
f61a0d05 3042 }
64ef8957
FB		 3043 elements_needed += elems;
3044 nr_frags = skb_shinfo(new_skb)->nr_frags;
4a71df50 3045
51aa165c
FB		 3046 if (card->info.type != QETH_CARD_TYPE_IQD) {
3047 int len;
6204b47e 3048 if (large_send)
51aa165c
FB		 3049 len = ((unsigned long)tcp_hdr(new_skb) +
3050 tcp_hdr(new_skb)->doff * 4) -
3051 (unsigned long)new_skb->data;
3052 else
3053 len = sizeof(struct qeth_hdr_layer3);
3054
3055 if (qeth_hdr_chk_and_bounce(new_skb, len))
3056 goto tx_drop;
4a71df50 3057 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 3058 elements_needed);
51aa165c 3059 } else
4a71df50 3060 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 3061 elements_needed, data_offset, 0);
4a71df50
FB		 3062
3063 if (!rc) {
3064 card->stats.tx_packets++;
3065 card->stats.tx_bytes += tx_bytes;
3066 if (new_skb != skb)
3067 dev_kfree_skb_any(skb);
3068 if (card->options.performance_stats) {
6204b47e 3069 if (large_send) {
4a71df50
FB		 3070 card->perf_stats.large_send_bytes += tx_bytes;
3071 card->perf_stats.large_send_cnt++;
3072 }
64ef8957 3073 if (nr_frags) {
4a71df50
FB		 3074 card->perf_stats.sg_skbs_sent++;
3075 /* nr_frags + skb->data */
64ef8957 3076 card->perf_stats.sg_frags_sent += nr_frags + 1;
4a71df50
FB		 3077 }
3078 }
ec634fe3 3079 rc = NETDEV_TX_OK;
4a71df50 3080 } else {
683d718a
FB		 3081 if (data_offset >= 0)
3082 kmem_cache_free(qeth_core_header_cache, hdr);
3083
4a71df50
FB		 3084 if (rc == -EBUSY) {
3085 if (new_skb != skb)
3086 dev_kfree_skb_any(new_skb);
3087 return NETDEV_TX_BUSY;
3088 } else
3089 goto tx_drop;
3090 }
3091
3092 netif_wake_queue(dev);
3093 if (card->options.performance_stats)
3094 card->perf_stats.outbound_time += qeth_get_micros() -
3095 card->perf_stats.outbound_start_time;
3096 return rc;
3097
3098tx_drop:
3099 card->stats.tx_dropped++;
3100 card->stats.tx_errors++;
3101 if ((new_skb != skb) && new_skb)
3102 dev_kfree_skb_any(new_skb);
3103 dev_kfree_skb_any(skb);
d0ec0f54 3104 netif_wake_queue(dev);
4a71df50
FB		 3105 return NETDEV_TX_OK;
3106}
3107
39423440 3108static int __qeth_l3_open(struct net_device *dev)
4a71df50 3109{
509e2562 3110 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 3111 int rc = 0;
4a71df50 3112
847a50fd 3113 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 3114 if (card->state == CARD_STATE_UP)
3115 return rc;
4a71df50
FB		 3116 if (card->state != CARD_STATE_SOFTSETUP)
3117 return -ENODEV;
3118 card->data.state = CH_STATE_UP;
3119 card->state = CARD_STATE_UP;
4a71df50
FB		 3120 netif_start_queue(dev);
3121
a1c3ed4c
FB		 3122 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3123 napi_enable(&card->napi);
3124 napi_schedule(&card->napi);
3125 } else
3126 rc = -EIO;
3127 return rc;
4a71df50
FB		 3128}
3129
39423440
UB		 3130static int qeth_l3_open(struct net_device *dev)
3131{
3132 struct qeth_card *card = dev->ml_priv;
3133
3134 QETH_CARD_TEXT(card, 5, "qethope_");
3135 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
3136 QETH_CARD_TEXT(card, 3, "openREC");
3137 return -ERESTARTSYS;
3138 }
3139 return __qeth_l3_open(dev);
3140}
3141
4a71df50
FB		 3142static int qeth_l3_stop(struct net_device *dev)
3143{
509e2562 3144 struct qeth_card *card = dev->ml_priv;
4a71df50 3145
847a50fd 3146 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 3147 netif_tx_disable(dev);
a1c3ed4c 3148 if (card->state == CARD_STATE_UP) {
4a71df50 3149 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 3150 napi_disable(&card->napi);
3151 }
4a71df50
FB		 3152 return 0;
3153}
3154
c8f44aff
MM		 3155static netdev_features_t qeth_l3_fix_features(struct net_device *dev,
3156 netdev_features_t features)
4a71df50 3157{
509e2562 3158 struct qeth_card *card = dev->ml_priv;
4a71df50 3159
6204b47e
MM		 3160 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3161 features &= ~NETIF_F_IP_CSUM;
3162 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
3163 features &= ~NETIF_F_TSO;
3164 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
3165 features &= ~NETIF_F_RXCSUM;
3166
3167 return features;
4a71df50
FB		 3168}
3169
c8f44aff
MM		 3170static int qeth_l3_set_features(struct net_device *dev,
3171 netdev_features_t features)
4a71df50 3172{
6204b47e
MM		 3173 struct qeth_card *card = dev->ml_priv;
3174 u32 changed = dev->features ^ features;
60a34277 3175 int err;
4a71df50 3176
6204b47e
MM		 3177 if (!(changed & NETIF_F_RXCSUM))
3178 return 0;
3179
60a34277
FB		 3180 if (card->state == CARD_STATE_DOWN ||
3181 card->state == CARD_STATE_RECOVER)
3182 return 0;
3183
3184 err = qeth_l3_set_rx_csum(card, features & NETIF_F_RXCSUM);
3185 if (err)
3186 dev->features = features ^ NETIF_F_RXCSUM;
4a71df50 3187
60a34277 3188 return err;
4a71df50
FB		 3189}
3190
0fc0b732 3191static const struct ethtool_ops qeth_l3_ethtool_ops = {
4a71df50 3192 .get_link = ethtool_op_get_link,
4a71df50
FB		 3193 .get_strings = qeth_core_get_strings,
3194 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 3195 .get_sset_count = qeth_core_get_sset_count,
4a71df50 3196 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 3197 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 3198};
3199
3200/*
3201 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3202 * NOARP on the netdevice is no option because it also turns off neighbor
3203 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3204 * arp resolution but we want the hard header (packet socket will work
3205 * e.g. tcpdump)
3206 */
3207static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3208{
3209 n->nud_state = NUD_NOARP;
3210 memcpy(n->ha, "FAKELL", 6);
3211 n->output = n->ops->connected_output;
3212 return 0;
3213}
3214
3215static int
3216qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3217{
3218 if (np->tbl->family == AF_INET)
3219 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3220
3221 return 0;
3222}
3223
3d58cefd 3224static const struct net_device_ops qeth_l3_netdev_ops = {
8403b13c
FB		 3225 .ndo_open = qeth_l3_open,
3226 .ndo_stop = qeth_l3_stop,
3227 .ndo_get_stats = qeth_get_stats,
3228 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3229 .ndo_validate_addr = eth_validate_addr,
afc4b13d 3230 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
7ff0bcf6
JP		 3231 .ndo_do_ioctl = qeth_l3_do_ioctl,
3232 .ndo_change_mtu = qeth_change_mtu,
3233 .ndo_fix_features = qeth_l3_fix_features,
3234 .ndo_set_features = qeth_l3_set_features,
8403b13c
FB		 3235 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3236 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
7ff0bcf6 3237 .ndo_tx_timeout = qeth_tx_timeout,
8403b13c
FB		 3238};
3239
3d58cefd
FB		 3240static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3241 .ndo_open = qeth_l3_open,
3242 .ndo_stop = qeth_l3_stop,
3243 .ndo_get_stats = qeth_get_stats,
3244 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3245 .ndo_validate_addr = eth_validate_addr,
afc4b13d 3246 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
7ff0bcf6
JP		 3247 .ndo_do_ioctl = qeth_l3_do_ioctl,
3248 .ndo_change_mtu = qeth_change_mtu,
3249 .ndo_fix_features = qeth_l3_fix_features,
3250 .ndo_set_features = qeth_l3_set_features,
3d58cefd
FB		 3251 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3252 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
7ff0bcf6 3253 .ndo_tx_timeout = qeth_tx_timeout,
3d58cefd
FB		 3254 .ndo_neigh_setup = qeth_l3_neigh_setup,
3255};
3256
4a71df50
FB		 3257static int qeth_l3_setup_netdev(struct qeth_card *card)
3258{
5113fec0
UB		 3259 if (card->info.type == QETH_CARD_TYPE_OSD ||
3260 card->info.type == QETH_CARD_TYPE_OSX) {
4a71df50
FB		 3261 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3262 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
1abd2296
PG		 3263 pr_info("qeth_l3: ignoring TR device\n");
3264 return -ENODEV;
4a71df50
FB		 3265 } else {
3266 card->dev = alloc_etherdev(0);
3267 if (!card->dev)
3268 return -ENODEV;
3d58cefd 3269 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
4a71df50
FB		 3270
3271 /*IPv6 address autoconfiguration stuff*/
3272 qeth_l3_get_unique_id(card);
3273 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3274 card->dev->dev_id = card->info.unique_id &
3275 0xffff;
c5e631a8
FB		 3276 if (!card->info.guestlan) {
3277 card->dev->hw_features = NETIF_F_SG |
3278 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3279 NETIF_F_TSO;
3280 card->dev->features = NETIF_F_RXCSUM;
3281 }
4a71df50
FB		 3282 }
3283 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3284 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3285 if (!card->dev)
3286 return -ENODEV;
3287 card->dev->flags |= IFF_NOARP;
3d58cefd 3288 card->dev->netdev_ops = &qeth_l3_netdev_ops;
4a71df50 3289 qeth_l3_iqd_read_initial_mac(card);
b3332930
FB		 3290 if (card->options.hsuid[0])
3291 memcpy(card->dev->perm_addr, card->options.hsuid, 9);
4a71df50
FB		 3292 } else
3293 return -ENODEV;
3294
509e2562 3295 card->dev->ml_priv = card;
4a71df50 3296 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50
FB		 3297 card->dev->mtu = card->info.initial_mtu;
3298 SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
f646968f
PM		 3299 card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
3300 NETIF_F_HW_VLAN_CTAG_RX |
3301 NETIF_F_HW_VLAN_CTAG_FILTER;
86d15cd8 3302 card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
c3b4a740 3303 card->dev->gso_max_size = 15 * PAGE_SIZE;
4a71df50
FB		 3304
3305 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
a1c3ed4c 3306 netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
4a71df50
FB		 3307 return register_netdev(card->dev);
3308}
3309
4a71df50
FB		 3310static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3311{
3312 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3313
3314 qeth_l3_create_device_attributes(&gdev->dev);
3315 card->options.layer2 = 0;
1da74b1c 3316 card->info.hwtrap = 0;
4a71df50
FB		 3317 return 0;
3318}
3319
3320static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3321{
3322 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3323
9dc48ccc
UB		 3324 qeth_l3_remove_device_attributes(&cgdev->dev);
3325
f2148565 3326 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 3327 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3328
70919e23 3329 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 3330 qeth_l3_set_offline(cgdev);
4a71df50
FB		 3331
3332 if (card->dev) {
3333 unregister_netdev(card->dev);
3334 card->dev = NULL;
3335 }
3336
70919e23 3337 qeth_l3_clear_ip_list(card, 0);
4a71df50
FB		 3338 qeth_l3_clear_ipato_list(card);
3339 return;
3340}
3341
3342static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3343{
3344 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3345 int rc = 0;
3346 enum qeth_card_states recover_flag;
3347
9dc48ccc 3348 mutex_lock(&card->discipline_mutex);
c4949f07 3349 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3350 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3351 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 3352
4a71df50 3353 recover_flag = card->state;
4a71df50
FB		 3354 rc = qeth_core_hardsetup_card(card);
3355 if (rc) {
d11ba0c4 3356 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
aa909224 3357 rc = -ENODEV;
4a71df50
FB		 3358 goto out_remove;
3359 }
3360
aa909224
UB		 3361 if (!card->dev && qeth_l3_setup_netdev(card)) {
3362 rc = -ENODEV;
4a71df50 3363 goto out_remove;
aa909224 3364 }
4a71df50 3365
1da74b1c
FB		 3366 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3367 if (card->info.hwtrap &&
3368 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3369 card->info.hwtrap = 0;
3370 } else
3371 card->info.hwtrap = 0;
3372
4a71df50 3373 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 3374 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 3375 qeth_print_status_message(card);
3376
3377 /* softsetup */
d11ba0c4 3378 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 3379
3380 rc = qeth_send_startlan(card);
3381 if (rc) {
d11ba0c4 3382 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 3383 if (rc == 0xe080) {
74eacdb9
FB		 3384 dev_warn(&card->gdev->dev,
3385 "The LAN is offline\n");
4a71df50 3386 card->lan_online = 0;
2b6203bb 3387 goto contin;
4a71df50 3388 }
aa909224 3389 rc = -ENODEV;
f2148565 3390 goto out_remove;
4a71df50
FB		 3391 } else
3392 card->lan_online = 1;
4a71df50 3393
2b6203bb 3394contin:
4a71df50
FB		 3395 rc = qeth_l3_setadapter_parms(card);
3396 if (rc)
d11ba0c4 3397 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
76b11f8e
UB		 3398 if (!card->options.sniffer) {
3399 rc = qeth_l3_start_ipassists(card);
0f54761d 3400 if (rc) {
76b11f8e 3401 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
0f54761d
SR		 3402 goto out_remove;
3403 }
76b11f8e
UB		 3404 rc = qeth_l3_setrouting_v4(card);
3405 if (rc)
3406 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3407 rc = qeth_l3_setrouting_v6(card);
3408 if (rc)
3409 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3410 }
4a71df50
FB		 3411 netif_tx_disable(card->dev);
3412
3413 rc = qeth_init_qdio_queues(card);
3414 if (rc) {
d11ba0c4 3415 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 3416 rc = -ENODEV;
4a71df50
FB		 3417 goto out_remove;
3418 }
3419 card->state = CARD_STATE_SOFTSETUP;
4a71df50
FB		 3420
3421 qeth_set_allowed_threads(card, 0xffffffff, 0);
e8069040 3422 qeth_l3_set_ip_addr_list(card);
2b6203bb
UB		 3423 if (card->lan_online)
3424 netif_carrier_on(card->dev);
3425 else
3426 netif_carrier_off(card->dev);
8af7c5ae 3427 if (recover_flag == CARD_STATE_RECOVER) {
4763b0a0 3428 rtnl_lock();
8af7c5ae 3429 if (recovery_mode)
39423440 3430 __qeth_l3_open(card->dev);
4763b0a0 3431 else
8af7c5ae 3432 dev_open(card->dev);
8af7c5ae 3433 qeth_l3_set_multicast_list(card->dev);
4763b0a0 3434 rtnl_unlock();
4a71df50 3435 }
82f77cf9 3436 qeth_trace_features(card);
4a71df50
FB		 3437 /* let user_space know that device is online */
3438 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3439 mutex_unlock(&card->conf_mutex);
9dc48ccc 3440 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3441 return 0;
3442out_remove:
4a71df50
FB		 3443 qeth_l3_stop_card(card, 0);
3444 ccw_device_set_offline(CARD_DDEV(card));
3445 ccw_device_set_offline(CARD_WDEV(card));
3446 ccw_device_set_offline(CARD_RDEV(card));
3447 if (recover_flag == CARD_STATE_RECOVER)
3448 card->state = CARD_STATE_RECOVER;
3449 else
3450 card->state = CARD_STATE_DOWN;
c4949f07 3451 mutex_unlock(&card->conf_mutex);
9dc48ccc 3452 mutex_unlock(&card->discipline_mutex);
aa909224 3453 return rc;
4a71df50
FB		 3454}
3455
3456static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3457{
3458 return __qeth_l3_set_online(gdev, 0);
3459}
3460
3461static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3462 int recovery_mode)
3463{
3464 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3465 int rc = 0, rc2 = 0, rc3 = 0;
3466 enum qeth_card_states recover_flag;
3467
9dc48ccc 3468 mutex_lock(&card->discipline_mutex);
c4949f07 3469 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3470 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3471 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 3472
3473 if (card->dev && netif_carrier_ok(card->dev))
3474 netif_carrier_off(card->dev);
3475 recover_flag = card->state;
1da74b1c
FB		 3476 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3477 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3478 card->info.hwtrap = 1;
3479 }
0f5623c9 3480 qeth_l3_stop_card(card, recovery_mode);
72861ae7
EL		 3481 if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
3482 rtnl_lock();
3483 call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
3484 rtnl_unlock();
3485 }
4a71df50
FB		 3486 rc = ccw_device_set_offline(CARD_DDEV(card));
3487 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3488 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3489 if (!rc)
3490 rc = (rc2) ? rc2 : rc3;
3491 if (rc)
d11ba0c4 3492 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50
FB		 3493 if (recover_flag == CARD_STATE_UP)
3494 card->state = CARD_STATE_RECOVER;
3495 /* let user_space know that device is offline */
3496 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3497 mutex_unlock(&card->conf_mutex);
9dc48ccc 3498 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3499 return 0;
3500}
3501
3502static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3503{
3504 return __qeth_l3_set_offline(cgdev, 0);
3505}
3506
3507static int qeth_l3_recover(void *ptr)
3508{
3509 struct qeth_card *card;
3510 int rc = 0;
3511
3512 card = (struct qeth_card *) ptr;
847a50fd
CO		 3513 QETH_CARD_TEXT(card, 2, "recover1");
3514 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
4a71df50
FB		 3515 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3516 return 0;
847a50fd 3517 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 3518 dev_warn(&card->gdev->dev,
3519 "A recovery process has been started for the device\n");
4a71df50
FB		 3520 __qeth_l3_set_offline(card->gdev, 1);
3521 rc = __qeth_l3_set_online(card->gdev, 1);
4a71df50 3522 if (!rc)
74eacdb9
FB		 3523 dev_info(&card->gdev->dev,
3524 "Device successfully recovered!\n");
28a7e4c9 3525 else {
0f54761d
SR		 3526 qeth_close_dev(card);
3527 dev_warn(&card->gdev->dev, "The qeth device driver "
2efaf5ff 3528 "failed to recover an error on the device\n");
28a7e4c9 3529 }
a1c3ed4c
FB		 3530 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3531 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 3532 return 0;
3533}
3534
3535static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3536{
3537 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
f78ac2bb 3538 qeth_set_allowed_threads(card, 0, 1);
1da74b1c
FB		 3539 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
3540 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
4a71df50
FB		 3541 qeth_qdio_clear_card(card, 0);
3542 qeth_clear_qdio_buffers(card);
3543}
3544
bbcfcdc8
FB		 3545static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3546{
3547 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3548
3549 if (card->dev)
3550 netif_device_detach(card->dev);
3551 qeth_set_allowed_threads(card, 0, 1);
3552 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3553 if (gdev->state == CCWGROUP_OFFLINE)
3554 return 0;
3555 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 3556 if (card->info.hwtrap)
3557 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 3558 __qeth_l3_set_offline(card->gdev, 1);
3559 } else
3560 __qeth_l3_set_offline(card->gdev, 0);
3561 return 0;
3562}
3563
3564static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3565{
3566 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3567 int rc = 0;
3568
3569 if (gdev->state == CCWGROUP_OFFLINE)
3570 goto out;
3571
3572 if (card->state == CARD_STATE_RECOVER) {
3573 rc = __qeth_l3_set_online(card->gdev, 1);
3574 if (rc) {
869da90b
UB		 3575 rtnl_lock();
3576 dev_close(card->dev);
3577 rtnl_unlock();
bbcfcdc8
FB		 3578 }
3579 } else
3580 rc = __qeth_l3_set_online(card->gdev, 0);
3581out:
3582 qeth_set_allowed_threads(card, 0xffffffff, 0);
3583 if (card->dev)
3584 netif_device_attach(card->dev);
3585 if (rc)
3586 dev_warn(&card->gdev->dev, "The qeth device driver "
3587 "failed to recover an error on the device\n");
3588 return rc;
3589}
3590
c041f2d4
SO		 3591struct qeth_discipline qeth_l3_discipline = {
3592 .start_poll = qeth_qdio_start_poll,
3593 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
3594 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
3595 .recover = qeth_l3_recover,
3596 .setup = qeth_l3_probe_device,
4a71df50
FB		 3597 .remove = qeth_l3_remove_device,
3598 .set_online = qeth_l3_set_online,
3599 .set_offline = qeth_l3_set_offline,
3600 .shutdown = qeth_l3_shutdown,
bbcfcdc8
FB		 3601 .freeze = qeth_l3_pm_suspend,
3602 .thaw = qeth_l3_pm_resume,
3603 .restore = qeth_l3_pm_resume,
4a71df50 3604};
c041f2d4 3605EXPORT_SYMBOL_GPL(qeth_l3_discipline);
4a71df50
FB		 3606
3607static int qeth_l3_ip_event(struct notifier_block *this,
76fef2b6 3608 unsigned long event, void *ptr)
4a71df50
FB		 3609{
3610 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3611 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3612 struct qeth_ipaddr *addr;
3613 struct qeth_card *card;
3614
c346dca1 3615 if (dev_net(dev) != &init_net)
76fef2b6
DM		 3616 return NOTIFY_DONE;
3617
4a71df50
FB		 3618 card = qeth_l3_get_card_from_dev(dev);
3619 if (!card)
3620 return NOTIFY_DONE;
6d8823db 3621 QETH_CARD_TEXT(card, 3, "ipevent");
4a71df50
FB		 3622
3623 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3624 if (addr != NULL) {
3625 addr->u.a4.addr = ifa->ifa_address;
3626 addr->u.a4.mask = ifa->ifa_mask;
3627 addr->type = QETH_IP_TYPE_NORMAL;
3628 } else
3629 goto out;
3630
3631 switch (event) {
3632 case NETDEV_UP:
3633 if (!qeth_l3_add_ip(card, addr))
3634 kfree(addr);
3635 break;
3636 case NETDEV_DOWN:
3637 if (!qeth_l3_delete_ip(card, addr))
3638 kfree(addr);
3639 break;
3640 default:
3641 break;
3642 }
3643 qeth_l3_set_ip_addr_list(card);
3644out:
3645 return NOTIFY_DONE;
3646}
3647
3648static struct notifier_block qeth_l3_ip_notifier = {
3649 qeth_l3_ip_event,
3650 NULL,
3651};
3652
3653#ifdef CONFIG_QETH_IPV6
3654/**
3655 * IPv6 event handler
3656 */
3657static int qeth_l3_ip6_event(struct notifier_block *this,
76fef2b6 3658 unsigned long event, void *ptr)
4a71df50
FB		 3659{
3660 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3661 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3662 struct qeth_ipaddr *addr;
3663 struct qeth_card *card;
3664
4a71df50
FB		 3665 card = qeth_l3_get_card_from_dev(dev);
3666 if (!card)
3667 return NOTIFY_DONE;
847a50fd 3668 QETH_CARD_TEXT(card, 3, "ip6event");
4a71df50
FB		 3669 if (!qeth_is_supported(card, IPA_IPV6))
3670 return NOTIFY_DONE;
3671
3672 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3673 if (addr != NULL) {
3674 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3675 addr->u.a6.pfxlen = ifa->prefix_len;
3676 addr->type = QETH_IP_TYPE_NORMAL;
3677 } else
3678 goto out;
3679
3680 switch (event) {
3681 case NETDEV_UP:
3682 if (!qeth_l3_add_ip(card, addr))
3683 kfree(addr);
3684 break;
3685 case NETDEV_DOWN:
3686 if (!qeth_l3_delete_ip(card, addr))
3687 kfree(addr);
3688 break;
3689 default:
3690 break;
3691 }
3692 qeth_l3_set_ip_addr_list(card);
3693out:
3694 return NOTIFY_DONE;
3695}
3696
3697static struct notifier_block qeth_l3_ip6_notifier = {
3698 qeth_l3_ip6_event,
3699 NULL,
3700};
3701#endif
3702
3703static int qeth_l3_register_notifiers(void)
3704{
3705 int rc;
3706
847a50fd 3707 QETH_DBF_TEXT(SETUP, 5, "regnotif");
4a71df50
FB		 3708 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3709 if (rc)
3710 return rc;
3711#ifdef CONFIG_QETH_IPV6
3712 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3713 if (rc) {
3714 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3715 return rc;
3716 }
3717#else
74eacdb9 3718 pr_warning("There is no IPv6 support for the layer 3 discipline\n");
4a71df50
FB		 3719#endif
3720 return 0;
3721}
3722
3723static void qeth_l3_unregister_notifiers(void)
3724{
3725
847a50fd 3726 QETH_DBF_TEXT(SETUP, 5, "unregnot");
18af5c17 3727 WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
4a71df50 3728#ifdef CONFIG_QETH_IPV6
18af5c17 3729 WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
4a71df50
FB		 3730#endif /* QETH_IPV6 */
3731}
3732
3733static int __init qeth_l3_init(void)
3734{
3735 int rc = 0;
3736
74eacdb9 3737 pr_info("register layer 3 discipline\n");
4a71df50
FB		 3738 rc = qeth_l3_register_notifiers();
3739 return rc;
3740}
3741
3742static void __exit qeth_l3_exit(void)
3743{
3744 qeth_l3_unregister_notifiers();
74eacdb9 3745 pr_info("unregister layer 3 discipline\n");
4a71df50
FB		 3746}
3747
3748module_init(qeth_l3_init);
3749module_exit(qeth_l3_exit);
3750MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3751MODULE_DESCRIPTION("qeth layer 3 discipline");
3752MODULE_LICENSE("GPL");
Ubuntu Artful kernel mirror