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