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netiucv: cleanup attribute usage
[deliverable/linux.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
JP		 1760 netdev = __vlan_find_dev_deep(card->dev, vid);
1761 in_dev = in_dev_get(netdev);
4a71df50
FB		 1762 if (!in_dev)
1763 return;
1764 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1765 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1766 if (addr) {
1767 addr->u.a4.addr = ifa->ifa_address;
1768 addr->u.a4.mask = ifa->ifa_mask;
1769 addr->type = QETH_IP_TYPE_NORMAL;
1770 if (!qeth_l3_delete_ip(card, addr))
1771 kfree(addr);
1772 }
1773 }
1774 in_dev_put(in_dev);
1775}
1776
1777static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1778 unsigned short vid)
1779{
1780#ifdef CONFIG_QETH_IPV6
1781 struct inet6_dev *in6_dev;
1782 struct inet6_ifaddr *ifa;
1783 struct qeth_ipaddr *addr;
7ff0bcf6 1784 struct net_device *netdev;
4a71df50 1785
847a50fd 1786 QETH_CARD_TEXT(card, 4, "frvaddr6");
4a71df50 1787
7ff0bcf6
JP		 1788 netdev = __vlan_find_dev_deep(card->dev, vid);
1789 in6_dev = in6_dev_get(netdev);
4a71df50
FB		 1790 if (!in6_dev)
1791 return;
70f60a22 1792 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
4a71df50
FB		 1793 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1794 if (addr) {
1795 memcpy(&addr->u.a6.addr, &ifa->addr,
1796 sizeof(struct in6_addr));
1797 addr->u.a6.pfxlen = ifa->prefix_len;
1798 addr->type = QETH_IP_TYPE_NORMAL;
1799 if (!qeth_l3_delete_ip(card, addr))
1800 kfree(addr);
1801 }
1802 }
1803 in6_dev_put(in6_dev);
1804#endif /* CONFIG_QETH_IPV6 */
1805}
1806
1807static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1808 unsigned short vid)
1809{
4a71df50
FB		 1810 qeth_l3_free_vlan_addresses4(card, vid);
1811 qeth_l3_free_vlan_addresses6(card, vid);
1812}
1813
8e586137 1814static int qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
4a71df50 1815{
509e2562 1816 struct qeth_card *card = dev->ml_priv;
4a71df50 1817
7ff0bcf6 1818 set_bit(vid, card->active_vlans);
8e586137 1819 return 0;
4a71df50
FB		 1820}
1821
8e586137 1822static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
4a71df50 1823{
509e2562 1824 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 1825 unsigned long flags;
1826
847a50fd 1827 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
8e98ac48 1828 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 1829 QETH_CARD_TEXT(card, 3, "kidREC");
8e586137 1830 return 0;
8e98ac48 1831 }
4a71df50
FB		 1832 spin_lock_irqsave(&card->vlanlock, flags);
1833 /* unregister IP addresses of vlan device */
1834 qeth_l3_free_vlan_addresses(card, vid);
7ff0bcf6 1835 clear_bit(vid, card->active_vlans);
4a71df50
FB		 1836 spin_unlock_irqrestore(&card->vlanlock, flags);
1837 qeth_l3_set_multicast_list(card->dev);
8e586137 1838 return 0;
4a71df50
FB		 1839}
1840
10651db7
UB		 1841static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1842 struct sk_buff *skb, struct qeth_hdr *hdr,
1843 unsigned short *vlan_id)
4a71df50 1844{
4a71df50
FB		 1845 __be16 prot;
1846 struct iphdr *ip_hdr;
1847 unsigned char tg_addr[MAX_ADDR_LEN];
10651db7 1848 int is_vlan = 0;
4a71df50
FB		 1849
1850 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1851 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1852 ETH_P_IP);
1853 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1854 case QETH_CAST_MULTICAST:
1855 switch (prot) {
1856#ifdef CONFIG_QETH_IPV6
1857 case __constant_htons(ETH_P_IPV6):
1858 ndisc_mc_map((struct in6_addr *)
1859 skb->data + 24,
1860 tg_addr, card->dev, 0);
1861 break;
1862#endif
1863 case __constant_htons(ETH_P_IP):
1864 ip_hdr = (struct iphdr *)skb->data;
4a71df50
FB		 1865 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1866 break;
1867 default:
1868 memcpy(tg_addr, card->dev->broadcast,
1869 card->dev->addr_len);
1870 }
1871 card->stats.multicast++;
1872 skb->pkt_type = PACKET_MULTICAST;
1873 break;
1874 case QETH_CAST_BROADCAST:
1875 memcpy(tg_addr, card->dev->broadcast,
1876 card->dev->addr_len);
1877 card->stats.multicast++;
1878 skb->pkt_type = PACKET_BROADCAST;
1879 break;
1880 case QETH_CAST_UNICAST:
1881 case QETH_CAST_ANYCAST:
1882 case QETH_CAST_NOCAST:
1883 default:
76b11f8e
UB		 1884 if (card->options.sniffer)
1885 skb->pkt_type = PACKET_OTHERHOST;
1886 else
1887 skb->pkt_type = PACKET_HOST;
4a71df50
FB		 1888 memcpy(tg_addr, card->dev->dev_addr,
1889 card->dev->addr_len);
1890 }
fe94e2e0
UB		 1891 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1892 card->dev->header_ops->create(skb, card->dev, prot,
1893 tg_addr, &hdr->hdr.l3.dest_addr[2],
1894 card->dev->addr_len);
1895 else
1896 card->dev->header_ops->create(skb, card->dev, prot,
1897 tg_addr, "FAKELL", card->dev->addr_len);
4a71df50
FB		 1898 }
1899
1abd2296 1900 skb->protocol = eth_type_trans(skb, card->dev);
4a71df50
FB		 1901
1902 if (hdr->hdr.l3.ext_flags &
1903 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
10651db7 1904 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
4a71df50 1905 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
10651db7 1906 is_vlan = 1;
4a71df50
FB		 1907 }
1908
c5e631a8 1909 if (card->dev->features & NETIF_F_RXCSUM) {
4a71df50 1910 if ((hdr->hdr.l3.ext_flags &
b9139800
UB		 1911 (QETH_HDR_EXT_CSUM_HDR_REQ |
1912 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1913 (QETH_HDR_EXT_CSUM_HDR_REQ |
1914 QETH_HDR_EXT_CSUM_TRANSP_REQ))
4a71df50
FB		 1915 skb->ip_summed = CHECKSUM_UNNECESSARY;
1916 else
b9139800 1917 skb->ip_summed = CHECKSUM_NONE;
c5e631a8
FB		 1918 } else
1919 skb->ip_summed = CHECKSUM_NONE;
4a71df50 1920
10651db7 1921 return is_vlan;
4a71df50
FB		 1922}
1923
a1c3ed4c
FB		 1924static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1925 int budget, int *done)
4a71df50 1926{
a1c3ed4c 1927 int work_done = 0;
4a71df50
FB		 1928 struct sk_buff *skb;
1929 struct qeth_hdr *hdr;
4a71df50 1930 __u16 vlan_tag = 0;
10651db7 1931 int is_vlan;
4a71df50 1932 unsigned int len;
b3332930 1933 __u16 magic;
4a71df50 1934
a1c3ed4c
FB		 1935 *done = 0;
1936 BUG_ON(!budget);
1937 while (budget) {
1938 skb = qeth_core_get_next_skb(card,
b3332930 1939 &card->qdio.in_q->bufs[card->rx.b_index],
a1c3ed4c
FB		 1940 &card->rx.b_element, &card->rx.e_offset, &hdr);
1941 if (!skb) {
1942 *done = 1;
1943 break;
1944 }
1945 skb->dev = card->dev;
4a71df50
FB		 1946 switch (hdr->hdr.l3.id) {
1947 case QETH_HEADER_TYPE_LAYER3:
b3332930
FB		 1948 magic = *(__u16 *)skb->data;
1949 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
1950 (magic == ETH_P_AF_IUCV)) {
1951 skb->protocol = ETH_P_AF_IUCV;
1952 skb->pkt_type = PACKET_HOST;
1953 skb->mac_header = NET_SKB_PAD;
1954 skb->dev = card->dev;
1955 len = skb->len;
1956 card->dev->header_ops->create(skb, card->dev, 0,
1957 card->dev->dev_addr, "FAKELL",
1958 card->dev->addr_len);
1959 netif_receive_skb(skb);
1960 } else {
1961 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
10651db7 1962 &vlan_tag);
b3332930
FB		 1963 len = skb->len;
1964 if (is_vlan && !card->options.sniffer)
1965 __vlan_hwaccel_put_tag(skb, vlan_tag);
1966 napi_gro_receive(&card->napi, skb);
1967 }
4a71df50 1968 break;
76b11f8e
UB		 1969 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
1970 skb->pkt_type = PACKET_HOST;
1971 skb->protocol = eth_type_trans(skb, skb->dev);
76b11f8e
UB		 1972 len = skb->len;
1973 netif_receive_skb(skb);
1974 break;
4a71df50
FB		 1975 default:
1976 dev_kfree_skb_any(skb);
847a50fd 1977 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 1978 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 1979 continue;
1980 }
a1c3ed4c
FB		 1981 work_done++;
1982 budget--;
4a71df50
FB		 1983 card->stats.rx_packets++;
1984 card->stats.rx_bytes += len;
1985 }
a1c3ed4c
FB		 1986 return work_done;
1987}
1988
1989static int qeth_l3_poll(struct napi_struct *napi, int budget)
1990{
1991 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
1992 int work_done = 0;
1993 struct qeth_qdio_buffer *buffer;
1994 int done;
1995 int new_budget = budget;
1996
1997 if (card->options.performance_stats) {
1998 card->perf_stats.inbound_cnt++;
1999 card->perf_stats.inbound_start_time = qeth_get_micros();
2000 }
2001
2002 while (1) {
2003 if (!card->rx.b_count) {
2004 card->rx.qdio_err = 0;
2005 card->rx.b_count = qdio_get_next_buffers(
2006 card->data.ccwdev, 0, &card->rx.b_index,
2007 &card->rx.qdio_err);
2008 if (card->rx.b_count <= 0) {
2009 card->rx.b_count = 0;
2010 break;
2011 }
2012 card->rx.b_element =
2013 &card->qdio.in_q->bufs[card->rx.b_index]
2014 .buffer->element[0];
2015 card->rx.e_offset = 0;
2016 }
2017
2018 while (card->rx.b_count) {
2019 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
2020 if (!(card->rx.qdio_err &&
2021 qeth_check_qdio_errors(card, buffer->buffer,
2022 card->rx.qdio_err, "qinerr")))
2023 work_done += qeth_l3_process_inbound_buffer(
2024 card, new_budget, &done);
2025 else
2026 done = 1;
2027
2028 if (done) {
2029 if (card->options.performance_stats)
2030 card->perf_stats.bufs_rec++;
2031 qeth_put_buffer_pool_entry(card,
2032 buffer->pool_entry);
2033 qeth_queue_input_buffer(card, card->rx.b_index);
2034 card->rx.b_count--;
2035 if (card->rx.b_count) {
2036 card->rx.b_index =
2037 (card->rx.b_index + 1) %
2038 QDIO_MAX_BUFFERS_PER_Q;
2039 card->rx.b_element =
2040 &card->qdio.in_q
2041 ->bufs[card->rx.b_index]
2042 .buffer->element[0];
2043 card->rx.e_offset = 0;
2044 }
2045 }
2046
2047 if (work_done >= budget)
2048 goto out;
2049 else
2050 new_budget = budget - work_done;
2051 }
2052 }
2053
2054 napi_complete(napi);
2055 if (qdio_start_irq(card->data.ccwdev, 0))
2056 napi_schedule(&card->napi);
2057out:
2058 if (card->options.performance_stats)
2059 card->perf_stats.inbound_time += qeth_get_micros() -
2060 card->perf_stats.inbound_start_time;
2061 return work_done;
4a71df50
FB		 2062}
2063
2064static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2065 struct qeth_card *card)
2066{
2067 int rc = 0;
7ff0bcf6 2068 u16 vid;
4a71df50 2069
7ff0bcf6
JP		 2070 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
2071 struct net_device *netdev;
4a71df50 2072
7ff0bcf6 2073 rcu_read_lock();
6d8823db 2074 netdev = __vlan_find_dev_deep(card->dev, vid);
7ff0bcf6
JP		 2075 rcu_read_unlock();
2076 if (netdev == dev) {
4a71df50
FB		 2077 rc = QETH_VLAN_CARD;
2078 break;
2079 }
2080 }
2081
509e2562 2082 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
4a71df50
FB		 2083 return 0;
2084
2085 return rc;
2086}
2087
2088static int qeth_l3_verify_dev(struct net_device *dev)
2089{
2090 struct qeth_card *card;
2091 unsigned long flags;
2092 int rc = 0;
2093
2094 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2095 list_for_each_entry(card, &qeth_core_card_list.list, list) {
2096 if (card->dev == dev) {
2097 rc = QETH_REAL_CARD;
2098 break;
2099 }
2100 rc = qeth_l3_verify_vlan_dev(dev, card);
2101 if (rc)
2102 break;
2103 }
2104 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2105
2106 return rc;
2107}
2108
2109static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2110{
2111 struct qeth_card *card = NULL;
2112 int rc;
2113
2114 rc = qeth_l3_verify_dev(dev);
2115 if (rc == QETH_REAL_CARD)
509e2562 2116 card = dev->ml_priv;
4a71df50 2117 else if (rc == QETH_VLAN_CARD)
509e2562 2118 card = vlan_dev_real_dev(dev)->ml_priv;
e5bd7be5 2119 if (card && card->options.layer2)
4a71df50 2120 card = NULL;
847a50fd
CO		 2121 if (card)
2122 QETH_CARD_TEXT_(card, 4, "%d", rc);
4a71df50
FB		 2123 return card ;
2124}
2125
2126static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2127{
2128 int rc = 0;
2129
d11ba0c4
PT		 2130 QETH_DBF_TEXT(SETUP, 2, "stopcard");
2131 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 2132
2133 qeth_set_allowed_threads(card, 0, 1);
76b11f8e
UB		 2134 if (card->options.sniffer &&
2135 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2136 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
4a71df50
FB		 2137 if (card->read.state == CH_STATE_UP &&
2138 card->write.state == CH_STATE_UP &&
2139 (card->state == CARD_STATE_UP)) {
2140 if (recovery_mode)
2141 qeth_l3_stop(card->dev);
8af7c5ae 2142 else {
869da90b
UB		 2143 rtnl_lock();
2144 dev_close(card->dev);
2145 rtnl_unlock();
8af7c5ae 2146 }
4a71df50
FB		 2147 card->state = CARD_STATE_SOFTSETUP;
2148 }
2149 if (card->state == CARD_STATE_SOFTSETUP) {
70919e23 2150 qeth_l3_clear_ip_list(card, 1);
4a71df50
FB		 2151 qeth_clear_ipacmd_list(card);
2152 card->state = CARD_STATE_HARDSETUP;
2153 }
2154 if (card->state == CARD_STATE_HARDSETUP) {
4a71df50
FB		 2155 qeth_qdio_clear_card(card, 0);
2156 qeth_clear_qdio_buffers(card);
2157 qeth_clear_working_pool_list(card);
2158 card->state = CARD_STATE_DOWN;
2159 }
2160 if (card->state == CARD_STATE_DOWN) {
2161 qeth_clear_cmd_buffers(&card->read);
2162 qeth_clear_cmd_buffers(&card->write);
2163 }
4a71df50
FB		 2164 return rc;
2165}
2166
76b11f8e
UB		 2167/*
2168 * test for and Switch promiscuous mode (on or off)
2169 * either for guestlan or HiperSocket Sniffer
2170 */
2171static void
2172qeth_l3_handle_promisc_mode(struct qeth_card *card)
2173{
2174 struct net_device *dev = card->dev;
2175
2176 if (((dev->flags & IFF_PROMISC) &&
2177 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2178 (!(dev->flags & IFF_PROMISC) &&
2179 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2180 return;
2181
2182 if (card->info.guestlan) { /* Guestlan trace */
2183 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2184 qeth_setadp_promisc_mode(card);
2185 } else if (card->options.sniffer && /* HiperSockets trace */
2186 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2187 if (dev->flags & IFF_PROMISC) {
847a50fd 2188 QETH_CARD_TEXT(card, 3, "+promisc");
76b11f8e
UB		 2189 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2190 } else {
847a50fd 2191 QETH_CARD_TEXT(card, 3, "-promisc");
76b11f8e
UB		 2192 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2193 }
2194 }
2195}
2196
4a71df50
FB		 2197static void qeth_l3_set_multicast_list(struct net_device *dev)
2198{
509e2562 2199 struct qeth_card *card = dev->ml_priv;
4a71df50 2200
847a50fd 2201 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 2202 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2203 (card->state != CARD_STATE_UP))
2204 return;
76b11f8e
UB		 2205 if (!card->options.sniffer) {
2206 qeth_l3_delete_mc_addresses(card);
2207 qeth_l3_add_multicast_ipv4(card);
4a71df50 2208#ifdef CONFIG_QETH_IPV6
76b11f8e 2209 qeth_l3_add_multicast_ipv6(card);
4a71df50 2210#endif
76b11f8e
UB		 2211 qeth_l3_set_ip_addr_list(card);
2212 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2213 return;
2214 }
2215 qeth_l3_handle_promisc_mode(card);
4a71df50
FB		 2216}
2217
2218static const char *qeth_l3_arp_get_error_cause(int *rc)
2219{
2220 switch (*rc) {
2221 case QETH_IPA_ARP_RC_FAILED:
2222 *rc = -EIO;
2223 return "operation failed";
2224 case QETH_IPA_ARP_RC_NOTSUPP:
2225 *rc = -EOPNOTSUPP;
2226 return "operation not supported";
2227 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2228 *rc = -EINVAL;
2229 return "argument out of range";
2230 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2231 *rc = -EOPNOTSUPP;
2232 return "query operation not supported";
2233 case QETH_IPA_ARP_RC_Q_NO_DATA:
2234 *rc = -ENOENT;
2235 return "no query data available";
2236 default:
2237 return "unknown error";
2238 }
2239}
2240
2241static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2242{
2243 int tmp;
2244 int rc;
2245
847a50fd 2246 QETH_CARD_TEXT(card, 3, "arpstnoe");
4a71df50
FB		 2247
2248 /*
2249 * currently GuestLAN only supports the ARP assist function
2250 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2251 * thus we say EOPNOTSUPP for this ARP function
2252 */
2253 if (card->info.guestlan)
2254 return -EOPNOTSUPP;
2255 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2256 return -EOPNOTSUPP;
2257 }
2258 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2259 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2260 no_entries);
2261 if (rc) {
2262 tmp = rc;
14cc21b6
FB		 2263 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2264 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2265 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2266 }
2267 return rc;
2268}
2269
d0ddf30f
EL		 2270static __u32 get_arp_entry_size(struct qeth_card *card,
2271 struct qeth_arp_query_data *qdata,
2272 struct qeth_arp_entrytype *type, __u8 strip_entries)
4a71df50 2273{
d0ddf30f
EL		 2274 __u32 rc;
2275 __u8 is_hsi;
4a71df50 2276
d0ddf30f
EL		 2277 is_hsi = qdata->reply_bits == 5;
2278 if (type->ip == QETHARP_IP_ADDR_V4) {
2279 QETH_CARD_TEXT(card, 4, "arpev4");
2280 if (strip_entries) {
2281 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2282 sizeof(struct qeth_arp_qi_entry7_short);
2283 } else {
2284 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2285 sizeof(struct qeth_arp_qi_entry7);
2286 }
2287 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2288 QETH_CARD_TEXT(card, 4, "arpev6");
2289 if (strip_entries) {
2290 rc = is_hsi ?
2291 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2292 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2293 } else {
2294 rc = is_hsi ?
2295 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2296 sizeof(struct qeth_arp_qi_entry7_ipv6);
2297 }
2298 } else {
2299 QETH_CARD_TEXT(card, 4, "arpinv");
2300 rc = 0;
4a71df50 2301 }
d0ddf30f
EL		 2302
2303 return rc;
2304}
2305
2306static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2307{
2308 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2309 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
4a71df50
FB		 2310}
2311
2312static int qeth_l3_arp_query_cb(struct qeth_card *card,
2313 struct qeth_reply *reply, unsigned long data)
2314{
2315 struct qeth_ipa_cmd *cmd;
2316 struct qeth_arp_query_data *qdata;
2317 struct qeth_arp_query_info *qinfo;
4a71df50 2318 int i;
d0ddf30f
EL		 2319 int e;
2320 int entrybytes_done;
2321 int stripped_bytes;
2322 __u8 do_strip_entries;
4a71df50 2323
d0ddf30f 2324 QETH_CARD_TEXT(card, 3, "arpquecb");
4a71df50
FB		 2325
2326 qinfo = (struct qeth_arp_query_info *) reply->param;
2327 cmd = (struct qeth_ipa_cmd *) data;
d0ddf30f 2328 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
4a71df50 2329 if (cmd->hdr.return_code) {
d0ddf30f
EL		 2330 QETH_CARD_TEXT(card, 4, "arpcberr");
2331 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2332 return 0;
2333 }
2334 if (cmd->data.setassparms.hdr.return_code) {
2335 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
d0ddf30f
EL		 2336 QETH_CARD_TEXT(card, 4, "setaperr");
2337 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2338 return 0;
2339 }
2340 qdata = &cmd->data.setassparms.data.query_arp;
847a50fd 2341 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
4a71df50 2342
d0ddf30f
EL		 2343 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2344 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2345 entrybytes_done = 0;
2346 for (e = 0; e < qdata->no_entries; ++e) {
2347 char *cur_entry;
2348 __u32 esize;
2349 struct qeth_arp_entrytype *etype;
2350
2351 cur_entry = &qdata->data + entrybytes_done;
2352 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2353 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2354 QETH_CARD_TEXT(card, 4, "pmis");
2355 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2356 break;
2357 }
2358 esize = get_arp_entry_size(card, qdata, etype,
2359 do_strip_entries);
2360 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2361 if (!esize)
2362 break;
2363
2364 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2365 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
e0a8114c 2366 cmd->hdr.return_code = IPA_RC_ENOMEM;
d0ddf30f
EL		 2367 goto out_error;
2368 }
4a71df50 2369
d0ddf30f
EL		 2370 memcpy(qinfo->udata + qinfo->udata_offset,
2371 &qdata->data + entrybytes_done + stripped_bytes,
2372 esize);
2373 entrybytes_done += esize + stripped_bytes;
2374 qinfo->udata_offset += esize;
2375 ++qinfo->no_entries;
2376 }
4a71df50
FB		 2377 /* check if all replies received ... */
2378 if (cmd->data.setassparms.hdr.seq_no <
2379 cmd->data.setassparms.hdr.number_of_replies)
2380 return 1;
d0ddf30f 2381 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
4a71df50
FB		 2382 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2383 /* keep STRIP_ENTRIES flag so the user program can distinguish
2384 * stripped entries from normal ones */
2385 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2386 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2387 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
d0ddf30f 2388 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
4a71df50
FB		 2389 return 0;
2390out_error:
2391 i = 0;
2392 memcpy(qinfo->udata, &i, 4);
2393 return 0;
2394}
2395
2396static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2397 struct qeth_cmd_buffer *iob, int len,
2398 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2399 unsigned long),
2400 void *reply_param)
2401{
847a50fd 2402 QETH_CARD_TEXT(card, 4, "sendarp");
4a71df50
FB		 2403
2404 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2405 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2406 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2407 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2408 reply_cb, reply_param);
2409}
2410
d0ddf30f
EL		 2411static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2412 enum qeth_prot_versions prot,
2413 struct qeth_arp_query_info *qinfo)
4a71df50
FB		 2414{
2415 struct qeth_cmd_buffer *iob;
d0ddf30f 2416 struct qeth_ipa_cmd *cmd;
4a71df50
FB		 2417 int tmp;
2418 int rc;
2419
d0ddf30f
EL		 2420 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2421
2422 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2423 IPA_CMD_ASS_ARP_QUERY_INFO,
2424 sizeof(struct qeth_arp_query_data) - sizeof(char),
2425 prot);
2426 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2427 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2428 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2429 cmd->data.setassparms.data.query_arp.no_entries = 0;
2430 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2431 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2432 qeth_l3_arp_query_cb, (void *)qinfo);
2433 if (rc) {
2434 tmp = rc;
2435 QETH_DBF_MESSAGE(2,
2436 "Error while querying ARP cache on %s: %s "
2437 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2438 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2439 }
2440
2441 return rc;
2442}
2443
2444static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2445{
2446 struct qeth_arp_query_info qinfo = {0, };
2447 int rc;
2448
847a50fd 2449 QETH_CARD_TEXT(card, 3, "arpquery");
4a71df50
FB		 2450
2451 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2452 IPA_ARP_PROCESSING)) {
d0ddf30f
EL		 2453 QETH_CARD_TEXT(card, 3, "arpqnsup");
2454 rc = -EOPNOTSUPP;
2455 goto out;
4a71df50
FB		 2456 }
2457 /* get size of userspace buffer and mask_bits -> 6 bytes */
d0ddf30f
EL		 2458 if (copy_from_user(&qinfo, udata, 6)) {
2459 rc = -EFAULT;
2460 goto out;
2461 }
4a71df50 2462 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
d0ddf30f
EL		 2463 if (!qinfo.udata) {
2464 rc = -ENOMEM;
2465 goto out;
2466 }
4a71df50 2467 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
d0ddf30f 2468 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
4a71df50 2469 if (rc) {
4a71df50
FB		 2470 if (copy_to_user(udata, qinfo.udata, 4))
2471 rc = -EFAULT;
d0ddf30f 2472 goto free_and_out;
4a71df50 2473 } else {
d0ddf30f
EL		 2474#ifdef CONFIG_QETH_IPV6
2475 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2476 /* fails in case of GuestLAN QDIO mode */
2477 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2478 &qinfo);
2479 }
2480#endif
2481 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2482 QETH_CARD_TEXT(card, 4, "qactf");
4a71df50 2483 rc = -EFAULT;
d0ddf30f
EL		 2484 goto free_and_out;
2485 }
2486 QETH_CARD_TEXT_(card, 4, "qacts");
4a71df50 2487 }
d0ddf30f 2488free_and_out:
4a71df50 2489 kfree(qinfo.udata);
d0ddf30f 2490out:
4a71df50
FB		 2491 return rc;
2492}
2493
2494static int qeth_l3_arp_add_entry(struct qeth_card *card,
2495 struct qeth_arp_cache_entry *entry)
2496{
2497 struct qeth_cmd_buffer *iob;
2498 char buf[16];
2499 int tmp;
2500 int rc;
2501
847a50fd 2502 QETH_CARD_TEXT(card, 3, "arpadent");
4a71df50
FB		 2503
2504 /*
2505 * currently GuestLAN only supports the ARP assist function
2506 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2507 * thus we say EOPNOTSUPP for this ARP function
2508 */
2509 if (card->info.guestlan)
2510 return -EOPNOTSUPP;
2511 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2512 return -EOPNOTSUPP;
2513 }
2514
2515 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2516 IPA_CMD_ASS_ARP_ADD_ENTRY,
2517 sizeof(struct qeth_arp_cache_entry),
2518 QETH_PROT_IPV4);
2519 rc = qeth_l3_send_setassparms(card, iob,
2520 sizeof(struct qeth_arp_cache_entry),
2521 (unsigned long) entry,
2522 qeth_l3_default_setassparms_cb, NULL);
2523 if (rc) {
2524 tmp = rc;
2525 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2526 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2527 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2528 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2529 }
2530 return rc;
2531}
2532
2533static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2534 struct qeth_arp_cache_entry *entry)
2535{
2536 struct qeth_cmd_buffer *iob;
2537 char buf[16] = {0, };
2538 int tmp;
2539 int rc;
2540
847a50fd 2541 QETH_CARD_TEXT(card, 3, "arprment");
4a71df50
FB		 2542
2543 /*
2544 * currently GuestLAN only supports the ARP assist function
2545 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2546 * thus we say EOPNOTSUPP for this ARP function
2547 */
2548 if (card->info.guestlan)
2549 return -EOPNOTSUPP;
2550 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2551 return -EOPNOTSUPP;
2552 }
2553 memcpy(buf, entry, 12);
2554 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2555 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2556 12,
2557 QETH_PROT_IPV4);
2558 rc = qeth_l3_send_setassparms(card, iob,
2559 12, (unsigned long)buf,
2560 qeth_l3_default_setassparms_cb, NULL);
2561 if (rc) {
2562 tmp = rc;
2563 memset(buf, 0, 16);
2564 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2565 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2566 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2567 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2568 }
2569 return rc;
2570}
2571
2572static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2573{
2574 int rc;
2575 int tmp;
2576
847a50fd 2577 QETH_CARD_TEXT(card, 3, "arpflush");
4a71df50
FB		 2578
2579 /*
2580 * currently GuestLAN only supports the ARP assist function
2581 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2582 * thus we say EOPNOTSUPP for this ARP function
2583 */
2584 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2585 return -EOPNOTSUPP;
2586 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2587 return -EOPNOTSUPP;
2588 }
2589 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2590 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2591 if (rc) {
2592 tmp = rc;
14cc21b6
FB		 2593 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2594 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2595 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2596 }
2597 return rc;
2598}
2599
2600static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2601{
509e2562 2602 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2603 struct qeth_arp_cache_entry arp_entry;
2604 struct mii_ioctl_data *mii_data;
2605 int rc = 0;
2606
2607 if (!card)
2608 return -ENODEV;
2609
2610 if ((card->state != CARD_STATE_UP) &&
2611 (card->state != CARD_STATE_SOFTSETUP))
2612 return -ENODEV;
2613
2614 switch (cmd) {
2615 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2616 if (!capable(CAP_NET_ADMIN)) {
2617 rc = -EPERM;
2618 break;
2619 }
2620 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2621 break;
2622 case SIOC_QETH_ARP_QUERY_INFO:
2623 if (!capable(CAP_NET_ADMIN)) {
2624 rc = -EPERM;
2625 break;
2626 }
2627 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2628 break;
2629 case SIOC_QETH_ARP_ADD_ENTRY:
2630 if (!capable(CAP_NET_ADMIN)) {
2631 rc = -EPERM;
2632 break;
2633 }
2634 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2635 sizeof(struct qeth_arp_cache_entry)))
2636 rc = -EFAULT;
2637 else
2638 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2639 break;
2640 case SIOC_QETH_ARP_REMOVE_ENTRY:
2641 if (!capable(CAP_NET_ADMIN)) {
2642 rc = -EPERM;
2643 break;
2644 }
2645 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2646 sizeof(struct qeth_arp_cache_entry)))
2647 rc = -EFAULT;
2648 else
2649 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2650 break;
2651 case SIOC_QETH_ARP_FLUSH_CACHE:
2652 if (!capable(CAP_NET_ADMIN)) {
2653 rc = -EPERM;
2654 break;
2655 }
2656 rc = qeth_l3_arp_flush_cache(card);
2657 break;
2658 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2659 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2660 break;
2661 case SIOC_QETH_GET_CARD_TYPE:
5113fec0
UB		 2662 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2663 card->info.type == QETH_CARD_TYPE_OSX) &&
4a71df50
FB		 2664 !card->info.guestlan)
2665 return 1;
2666 return 0;
2667 break;
2668 case SIOCGMIIPHY:
2669 mii_data = if_mii(rq);
2670 mii_data->phy_id = 0;
2671 break;
2672 case SIOCGMIIREG:
2673 mii_data = if_mii(rq);
2674 if (mii_data->phy_id != 0)
2675 rc = -EINVAL;
2676 else
2677 mii_data->val_out = qeth_mdio_read(dev,
2678 mii_data->phy_id,
2679 mii_data->reg_num);
2680 break;
c3ab96f3
FB		 2681 case SIOC_QETH_QUERY_OAT:
2682 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
2683 break;
4a71df50
FB		 2684 default:
2685 rc = -EOPNOTSUPP;
2686 }
2687 if (rc)
847a50fd 2688 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
4a71df50
FB		 2689 return rc;
2690}
2691
ce73e10e
KDW		 2692int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2693{
2694 int cast_type = RTN_UNSPEC;
69cce1d1
DM		 2695 struct neighbour *n = NULL;
2696 struct dst_entry *dst;
2697
1d36cb47 2698 rcu_read_lock();
69cce1d1
DM		 2699 dst = skb_dst(skb);
2700 if (dst)
24db1ba8 2701 n = dst_neigh_lookup_skb(dst, skb);
69cce1d1
DM		 2702 if (n) {
2703 cast_type = n->type;
1d36cb47 2704 rcu_read_unlock();
24db1ba8 2705 neigh_release(n);
ce73e10e
KDW		 2706 if ((cast_type == RTN_BROADCAST) ||
2707 (cast_type == RTN_MULTICAST) ||
2708 (cast_type == RTN_ANYCAST))
2709 return cast_type;
2710 else
2711 return RTN_UNSPEC;
2712 }
1d36cb47
FB		 2713 rcu_read_unlock();
2714
ce73e10e
KDW		 2715 /* try something else */
2716 if (skb->protocol == ETH_P_IPV6)
2717 return (skb_network_header(skb)[24] == 0xff) ?
2718 RTN_MULTICAST : 0;
2719 else if (skb->protocol == ETH_P_IP)
2720 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2721 RTN_MULTICAST : 0;
2722 /* ... */
2723 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2724 return RTN_BROADCAST;
2725 else {
2726 u16 hdr_mac;
2727
2728 hdr_mac = *((u16 *)skb->data);
2729 /* tr multicast? */
2730 switch (card->info.link_type) {
2731 case QETH_LINK_TYPE_HSTR:
2732 case QETH_LINK_TYPE_LANE_TR:
2733 if ((hdr_mac == QETH_TR_MAC_NC) ||
2734 (hdr_mac == QETH_TR_MAC_C))
2735 return RTN_MULTICAST;
2736 break;
2737 /* eth or so multicast? */
2738 default:
2739 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2740 (hdr_mac == QETH_ETH_MAC_V6))
2741 return RTN_MULTICAST;
2742 }
2743 }
2744 return cast_type;
2745}
2746
b3332930
FB		 2747static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
2748 struct qeth_hdr *hdr, struct sk_buff *skb)
2749{
2750 char daddr[16];
2751 struct af_iucv_trans_hdr *iucv_hdr;
2752
2753 skb_pull(skb, 14);
2754 card->dev->header_ops->create(skb, card->dev, 0,
2755 card->dev->dev_addr, card->dev->dev_addr,
2756 card->dev->addr_len);
2757 skb_pull(skb, 14);
2758 iucv_hdr = (struct af_iucv_trans_hdr *)skb->data;
2759 memset(hdr, 0, sizeof(struct qeth_hdr));
2760 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2761 hdr->hdr.l3.ext_flags = 0;
2762 hdr->hdr.l3.length = skb->len;
2763 hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
2764 memset(daddr, 0, sizeof(daddr));
2765 daddr[0] = 0xfe;
2766 daddr[1] = 0x80;
2767 memcpy(&daddr[8], iucv_hdr->destUserID, 8);
2768 memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
2769}
2770
4a71df50
FB		 2771static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2772 struct sk_buff *skb, int ipv, int cast_type)
2773{
69cce1d1
DM		 2774 struct dst_entry *dst;
2775
4a71df50
FB		 2776 memset(hdr, 0, sizeof(struct qeth_hdr));
2777 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2778 hdr->hdr.l3.ext_flags = 0;
2779
2780 /*
2781 * before we're going to overwrite this location with next hop ip.
2782 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2783 */
7ff0bcf6 2784 if (vlan_tx_tag_present(skb)) {
213298f8
FB		 2785 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2786 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2787 else
2788 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4a71df50
FB		 2789 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2790 }
2791
2792 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
1d36cb47
FB		 2793
2794 rcu_read_lock();
69cce1d1 2795 dst = skb_dst(skb);
4a71df50 2796 if (ipv == 4) {
87e7597b
DM		 2797 struct rtable *rt = (struct rtable *) dst;
2798 __be32 *pkey = &ip_hdr(skb)->daddr;
2799
2800 if (rt->rt_gateway)
2801 pkey = &rt->rt_gateway;
2802
4a71df50
FB		 2803 /* IPv4 */
2804 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2805 memset(hdr->hdr.l3.dest_addr, 0, 12);
87e7597b 2806 *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
4a71df50 2807 } else if (ipv == 6) {
87e7597b
DM		 2808 struct rt6_info *rt = (struct rt6_info *) dst;
2809 struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
2810
2811 if (!ipv6_addr_any(&rt->rt6i_gateway))
2812 pkey = &rt->rt6i_gateway;
2813
4a71df50
FB		 2814 /* IPv6 */
2815 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2816 if (card->info.type == QETH_CARD_TYPE_IQD)
2817 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
87e7597b 2818 memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
4a71df50 2819 } else {
1abd2296 2820 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4a71df50
FB		 2821 skb->dev->broadcast, 6)) {
2822 /* broadcast? */
2823 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2824 QETH_HDR_PASSTHRU;
2825 } else {
2826 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2827 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2828 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2829 }
2830 }
1d36cb47 2831 rcu_read_unlock();
4a71df50
FB		 2832}
2833
f6b85b6c
FB		 2834static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2835 struct qeth_hdr *hdr, struct sk_buff *skb)
2836{
2837 struct iphdr *iph = ip_hdr(skb);
2838
2839 /* tcph->check contains already the pseudo hdr checksum
2840 * so just set the header flags
2841 */
2842 if (iph->protocol == IPPROTO_UDP)
2843 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
16c0f936
FB		 2844 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2845 QETH_HDR_EXT_CSUM_HDR_REQ;
2846 iph->check = 0;
f6b85b6c
FB		 2847 if (card->options.performance_stats)
2848 card->perf_stats.tx_csum++;
2849}
2850
64ef8957
FB		 2851static void qeth_tso_fill_header(struct qeth_card *card,
2852 struct qeth_hdr *qhdr, struct sk_buff *skb)
2853{
2854 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2855 struct tcphdr *tcph = tcp_hdr(skb);
2856 struct iphdr *iph = ip_hdr(skb);
2857 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2858
2859 /*fix header to TSO values ...*/
2860 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
8fa9208e 2861 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
64ef8957
FB		 2862 /*set values which are fix for the first approach ...*/
2863 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2864 hdr->ext.imb_hdr_no = 1;
2865 hdr->ext.hdr_type = 1;
2866 hdr->ext.hdr_version = 1;
2867 hdr->ext.hdr_len = 28;
2868 /*insert non-fix values */
2869 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2870 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2871 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2872 sizeof(struct qeth_hdr_tso));
2873 tcph->check = 0;
2874 if (skb->protocol == ETH_P_IPV6) {
2875 ip6h->payload_len = 0;
2876 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2877 0, IPPROTO_TCP, 0);
2878 } else {
2879 /*OSA want us to set these values ...*/
2880 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2881 0, IPPROTO_TCP, 0);
2882 iph->tot_len = 0;
2883 iph->check = 0;
2884 }
2885}
2886
c3b4a740
FB		 2887static inline int qeth_l3_tso_elements(struct sk_buff *skb)
2888{
2889 unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
2890 tcp_hdr(skb)->doff * 4;
2891 int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
51aa165c 2892 int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
c3b4a740
FB		 2893 elements += skb_shinfo(skb)->nr_frags;
2894 return elements;
2895}
2896
4a71df50
FB		 2897static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2898{
2899 int rc;
2900 u16 *tag;
2901 struct qeth_hdr *hdr = NULL;
2902 int elements_needed = 0;
64ef8957 2903 int elems;
509e2562 2904 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2905 struct sk_buff *new_skb = NULL;
2906 int ipv = qeth_get_ip_version(skb);
ce73e10e 2907 int cast_type = qeth_l3_get_cast_type(card, skb);
4a71df50
FB		 2908 struct qeth_qdio_out_q *queue = card->qdio.out_qs
2909 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
2910 int tx_bytes = skb->len;
6204b47e 2911 bool large_send;
683d718a 2912 int data_offset = -1;
64ef8957 2913 int nr_frags;
4a71df50 2914
b3332930
FB		 2915 if (((card->info.type == QETH_CARD_TYPE_IQD) &&
2916 (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
2917 ((card->options.cq == QETH_CQ_ENABLED) &&
2918 (skb->protocol != ETH_P_AF_IUCV)))) ||
2919 card->options.sniffer)
4a71df50
FB		 2920 goto tx_drop;
2921
2922 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2923 card->stats.tx_carrier_errors++;
2924 goto tx_drop;
2925 }
2926
2927 if ((cast_type == RTN_BROADCAST) &&
2928 (card->info.broadcast_capable == 0))
2929 goto tx_drop;
2930
2931 if (card->options.performance_stats) {
2932 card->perf_stats.outbound_cnt++;
2933 card->perf_stats.outbound_start_time = qeth_get_micros();
2934 }
2935
6204b47e 2936 large_send = skb_is_gso(skb);
683d718a
FB		 2937
2938 if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
2939 (skb_shinfo(skb)->nr_frags == 0)) {
2940 new_skb = skb;
b3332930
FB		 2941 if (new_skb->protocol == ETH_P_AF_IUCV)
2942 data_offset = 0;
2943 else
2944 data_offset = ETH_HLEN;
683d718a
FB		 2945 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2946 if (!hdr)
2947 goto tx_drop;
2948 elements_needed++;
2949 } else {
2950 /* create a clone with writeable headroom */
2951 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2952 + VLAN_HLEN);
2953 if (!new_skb)
2954 goto tx_drop;
2955 }
4a71df50
FB		 2956
2957 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 2958 if (data_offset < 0)
2959 skb_pull(new_skb, ETH_HLEN);
4a71df50 2960 } else {
21fde749 2961 if (ipv == 4) {
1abd2296 2962 skb_pull(new_skb, ETH_HLEN);
4a71df50
FB		 2963 }
2964
7ff0bcf6 2965 if (ipv != 4 && vlan_tx_tag_present(new_skb)) {
4a71df50
FB		 2966 skb_push(new_skb, VLAN_HLEN);
2967 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2968 skb_copy_to_linear_data_offset(new_skb, 4,
2969 new_skb->data + 8, 4);
2970 skb_copy_to_linear_data_offset(new_skb, 8,
2971 new_skb->data + 12, 4);
2972 tag = (u16 *)(new_skb->data + 12);
2973 *tag = __constant_htons(ETH_P_8021Q);
2974 *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
4a71df50
FB		 2975 }
2976 }
2977
2978 netif_stop_queue(dev);
2979
4a71df50 2980 /* fix hardware limitation: as long as we do not have sbal
64ef8957 2981 * chaining we can not send long frag lists
4a71df50 2982 */
6204b47e 2983 if (large_send) {
c3b4a740
FB		 2984 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
2985 if (skb_linearize(new_skb))
2986 goto tx_drop;
2987 if (card->options.performance_stats)
2988 card->perf_stats.tx_lin++;
2989 }
64ef8957 2990 }
4a71df50 2991
6204b47e 2992 if (large_send && (cast_type == RTN_UNSPEC)) {
4a71df50
FB		 2993 hdr = (struct qeth_hdr *)skb_push(new_skb,
2994 sizeof(struct qeth_hdr_tso));
2995 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
2996 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2997 qeth_tso_fill_header(card, hdr, new_skb);
2998 elements_needed++;
2999 } else {
683d718a
FB		 3000 if (data_offset < 0) {
3001 hdr = (struct qeth_hdr *)skb_push(new_skb,
4a71df50 3002 sizeof(struct qeth_hdr));
683d718a
FB		 3003 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3004 cast_type);
3005 } else {
b3332930
FB		 3006 if (new_skb->protocol == ETH_P_AF_IUCV)
3007 qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
3008 else {
3009 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3010 cast_type);
3011 hdr->hdr.l3.length = new_skb->len - data_offset;
3012 }
683d718a 3013 }
f6b85b6c
FB		 3014
3015 if (skb->ip_summed == CHECKSUM_PARTIAL)
3016 qeth_l3_hdr_csum(card, hdr, new_skb);
4a71df50
FB		 3017 }
3018
64ef8957 3019 elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
4a71df50 3020 elements_needed);
64ef8957
FB		 3021 if (!elems) {
3022 if (data_offset >= 0)
3023 kmem_cache_free(qeth_core_header_cache, hdr);
3024 goto tx_drop;
f61a0d05 3025 }
64ef8957
FB		 3026 elements_needed += elems;
3027 nr_frags = skb_shinfo(new_skb)->nr_frags;
4a71df50 3028
51aa165c
FB		 3029 if (card->info.type != QETH_CARD_TYPE_IQD) {
3030 int len;
6204b47e 3031 if (large_send)
51aa165c
FB		 3032 len = ((unsigned long)tcp_hdr(new_skb) +
3033 tcp_hdr(new_skb)->doff * 4) -
3034 (unsigned long)new_skb->data;
3035 else
3036 len = sizeof(struct qeth_hdr_layer3);
3037
3038 if (qeth_hdr_chk_and_bounce(new_skb, len))
3039 goto tx_drop;
4a71df50 3040 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 3041 elements_needed);
51aa165c 3042 } else
4a71df50 3043 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 3044 elements_needed, data_offset, 0);
4a71df50
FB		 3045
3046 if (!rc) {
3047 card->stats.tx_packets++;
3048 card->stats.tx_bytes += tx_bytes;
3049 if (new_skb != skb)
3050 dev_kfree_skb_any(skb);
3051 if (card->options.performance_stats) {
6204b47e 3052 if (large_send) {
4a71df50
FB		 3053 card->perf_stats.large_send_bytes += tx_bytes;
3054 card->perf_stats.large_send_cnt++;
3055 }
64ef8957 3056 if (nr_frags) {
4a71df50
FB		 3057 card->perf_stats.sg_skbs_sent++;
3058 /* nr_frags + skb->data */
64ef8957 3059 card->perf_stats.sg_frags_sent += nr_frags + 1;
4a71df50
FB		 3060 }
3061 }
ec634fe3 3062 rc = NETDEV_TX_OK;
4a71df50 3063 } else {
683d718a
FB		 3064 if (data_offset >= 0)
3065 kmem_cache_free(qeth_core_header_cache, hdr);
3066
4a71df50
FB		 3067 if (rc == -EBUSY) {
3068 if (new_skb != skb)
3069 dev_kfree_skb_any(new_skb);
3070 return NETDEV_TX_BUSY;
3071 } else
3072 goto tx_drop;
3073 }
3074
3075 netif_wake_queue(dev);
3076 if (card->options.performance_stats)
3077 card->perf_stats.outbound_time += qeth_get_micros() -
3078 card->perf_stats.outbound_start_time;
3079 return rc;
3080
3081tx_drop:
3082 card->stats.tx_dropped++;
3083 card->stats.tx_errors++;
3084 if ((new_skb != skb) && new_skb)
3085 dev_kfree_skb_any(new_skb);
3086 dev_kfree_skb_any(skb);
d0ec0f54 3087 netif_wake_queue(dev);
4a71df50
FB		 3088 return NETDEV_TX_OK;
3089}
3090
39423440 3091static int __qeth_l3_open(struct net_device *dev)
4a71df50 3092{
509e2562 3093 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 3094 int rc = 0;
4a71df50 3095
847a50fd 3096 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 3097 if (card->state == CARD_STATE_UP)
3098 return rc;
4a71df50
FB		 3099 if (card->state != CARD_STATE_SOFTSETUP)
3100 return -ENODEV;
3101 card->data.state = CH_STATE_UP;
3102 card->state = CARD_STATE_UP;
4a71df50
FB		 3103 netif_start_queue(dev);
3104
a1c3ed4c
FB		 3105 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3106 napi_enable(&card->napi);
3107 napi_schedule(&card->napi);
3108 } else
3109 rc = -EIO;
3110 return rc;
4a71df50
FB		 3111}
3112
39423440
UB		 3113static int qeth_l3_open(struct net_device *dev)
3114{
3115 struct qeth_card *card = dev->ml_priv;
3116
3117 QETH_CARD_TEXT(card, 5, "qethope_");
3118 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
3119 QETH_CARD_TEXT(card, 3, "openREC");
3120 return -ERESTARTSYS;
3121 }
3122 return __qeth_l3_open(dev);
3123}
3124
4a71df50
FB		 3125static int qeth_l3_stop(struct net_device *dev)
3126{
509e2562 3127 struct qeth_card *card = dev->ml_priv;
4a71df50 3128
847a50fd 3129 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 3130 netif_tx_disable(dev);
a1c3ed4c 3131 if (card->state == CARD_STATE_UP) {
4a71df50 3132 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 3133 napi_disable(&card->napi);
3134 }
4a71df50
FB		 3135 return 0;
3136}
3137
c8f44aff
MM		 3138static netdev_features_t qeth_l3_fix_features(struct net_device *dev,
3139 netdev_features_t features)
4a71df50 3140{
509e2562 3141 struct qeth_card *card = dev->ml_priv;
4a71df50 3142
6204b47e
MM		 3143 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3144 features &= ~NETIF_F_IP_CSUM;
3145 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
3146 features &= ~NETIF_F_TSO;
3147 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
3148 features &= ~NETIF_F_RXCSUM;
3149
3150 return features;
4a71df50
FB		 3151}
3152
c8f44aff
MM		 3153static int qeth_l3_set_features(struct net_device *dev,
3154 netdev_features_t features)
4a71df50 3155{
6204b47e
MM		 3156 struct qeth_card *card = dev->ml_priv;
3157 u32 changed = dev->features ^ features;
60a34277 3158 int err;
4a71df50 3159
6204b47e
MM		 3160 if (!(changed & NETIF_F_RXCSUM))
3161 return 0;
3162
60a34277
FB		 3163 if (card->state == CARD_STATE_DOWN ||
3164 card->state == CARD_STATE_RECOVER)
3165 return 0;
3166
3167 err = qeth_l3_set_rx_csum(card, features & NETIF_F_RXCSUM);
3168 if (err)
3169 dev->features = features ^ NETIF_F_RXCSUM;
4a71df50 3170
60a34277 3171 return err;
4a71df50
FB		 3172}
3173
0fc0b732 3174static const struct ethtool_ops qeth_l3_ethtool_ops = {
4a71df50 3175 .get_link = ethtool_op_get_link,
4a71df50
FB		 3176 .get_strings = qeth_core_get_strings,
3177 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 3178 .get_sset_count = qeth_core_get_sset_count,
4a71df50 3179 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 3180 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 3181};
3182
3183/*
3184 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3185 * NOARP on the netdevice is no option because it also turns off neighbor
3186 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3187 * arp resolution but we want the hard header (packet socket will work
3188 * e.g. tcpdump)
3189 */
3190static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3191{
3192 n->nud_state = NUD_NOARP;
3193 memcpy(n->ha, "FAKELL", 6);
3194 n->output = n->ops->connected_output;
3195 return 0;
3196}
3197
3198static int
3199qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3200{
3201 if (np->tbl->family == AF_INET)
3202 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3203
3204 return 0;
3205}
3206
3d58cefd 3207static const struct net_device_ops qeth_l3_netdev_ops = {
8403b13c
FB		 3208 .ndo_open = qeth_l3_open,
3209 .ndo_stop = qeth_l3_stop,
3210 .ndo_get_stats = qeth_get_stats,
3211 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3212 .ndo_validate_addr = eth_validate_addr,
afc4b13d 3213 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
7ff0bcf6
JP		 3214 .ndo_do_ioctl = qeth_l3_do_ioctl,
3215 .ndo_change_mtu = qeth_change_mtu,
3216 .ndo_fix_features = qeth_l3_fix_features,
3217 .ndo_set_features = qeth_l3_set_features,
8403b13c
FB		 3218 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3219 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
7ff0bcf6 3220 .ndo_tx_timeout = qeth_tx_timeout,
8403b13c
FB		 3221};
3222
3d58cefd
FB		 3223static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3224 .ndo_open = qeth_l3_open,
3225 .ndo_stop = qeth_l3_stop,
3226 .ndo_get_stats = qeth_get_stats,
3227 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3228 .ndo_validate_addr = eth_validate_addr,
afc4b13d 3229 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
7ff0bcf6
JP		 3230 .ndo_do_ioctl = qeth_l3_do_ioctl,
3231 .ndo_change_mtu = qeth_change_mtu,
3232 .ndo_fix_features = qeth_l3_fix_features,
3233 .ndo_set_features = qeth_l3_set_features,
3d58cefd
FB		 3234 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3235 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
7ff0bcf6 3236 .ndo_tx_timeout = qeth_tx_timeout,
3d58cefd
FB		 3237 .ndo_neigh_setup = qeth_l3_neigh_setup,
3238};
3239
4a71df50
FB		 3240static int qeth_l3_setup_netdev(struct qeth_card *card)
3241{
5113fec0
UB		 3242 if (card->info.type == QETH_CARD_TYPE_OSD ||
3243 card->info.type == QETH_CARD_TYPE_OSX) {
4a71df50
FB		 3244 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3245 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
1abd2296
PG		 3246 pr_info("qeth_l3: ignoring TR device\n");
3247 return -ENODEV;
4a71df50
FB		 3248 } else {
3249 card->dev = alloc_etherdev(0);
3250 if (!card->dev)
3251 return -ENODEV;
3d58cefd 3252 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
4a71df50
FB		 3253
3254 /*IPv6 address autoconfiguration stuff*/
3255 qeth_l3_get_unique_id(card);
3256 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3257 card->dev->dev_id = card->info.unique_id &
3258 0xffff;
c5e631a8
FB		 3259 if (!card->info.guestlan) {
3260 card->dev->hw_features = NETIF_F_SG |
3261 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3262 NETIF_F_TSO;
3263 card->dev->features = NETIF_F_RXCSUM;
3264 }
4a71df50
FB		 3265 }
3266 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3267 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3268 if (!card->dev)
3269 return -ENODEV;
3270 card->dev->flags |= IFF_NOARP;
3d58cefd 3271 card->dev->netdev_ops = &qeth_l3_netdev_ops;
4a71df50 3272 qeth_l3_iqd_read_initial_mac(card);
b3332930
FB		 3273 if (card->options.hsuid[0])
3274 memcpy(card->dev->perm_addr, card->options.hsuid, 9);
4a71df50
FB		 3275 } else
3276 return -ENODEV;
3277
509e2562 3278 card->dev->ml_priv = card;
4a71df50 3279 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50
FB		 3280 card->dev->mtu = card->info.initial_mtu;
3281 SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
3282 card->dev->features |= NETIF_F_HW_VLAN_TX |
3283 NETIF_F_HW_VLAN_RX |
3284 NETIF_F_HW_VLAN_FILTER;
86d15cd8 3285 card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
c3b4a740 3286 card->dev->gso_max_size = 15 * PAGE_SIZE;
4a71df50
FB		 3287
3288 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
a1c3ed4c 3289 netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
4a71df50
FB		 3290 return register_netdev(card->dev);
3291}
3292
4a71df50
FB		 3293static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3294{
3295 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3296
3297 qeth_l3_create_device_attributes(&gdev->dev);
3298 card->options.layer2 = 0;
1da74b1c 3299 card->info.hwtrap = 0;
4a71df50
FB		 3300 return 0;
3301}
3302
3303static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3304{
3305 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3306
9dc48ccc
UB		 3307 qeth_l3_remove_device_attributes(&cgdev->dev);
3308
f2148565 3309 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 3310 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3311
70919e23 3312 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 3313 qeth_l3_set_offline(cgdev);
4a71df50
FB		 3314
3315 if (card->dev) {
3316 unregister_netdev(card->dev);
3317 card->dev = NULL;
3318 }
3319
70919e23 3320 qeth_l3_clear_ip_list(card, 0);
4a71df50
FB		 3321 qeth_l3_clear_ipato_list(card);
3322 return;
3323}
3324
3325static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3326{
3327 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3328 int rc = 0;
3329 enum qeth_card_states recover_flag;
3330
3331 BUG_ON(!card);
9dc48ccc 3332 mutex_lock(&card->discipline_mutex);
c4949f07 3333 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3334 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3335 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 3336
4a71df50 3337 recover_flag = card->state;
4a71df50
FB		 3338 rc = qeth_core_hardsetup_card(card);
3339 if (rc) {
d11ba0c4 3340 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
aa909224 3341 rc = -ENODEV;
4a71df50
FB		 3342 goto out_remove;
3343 }
3344
aa909224
UB		 3345 if (!card->dev && qeth_l3_setup_netdev(card)) {
3346 rc = -ENODEV;
4a71df50 3347 goto out_remove;
aa909224 3348 }
4a71df50 3349
1da74b1c
FB		 3350 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3351 if (card->info.hwtrap &&
3352 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3353 card->info.hwtrap = 0;
3354 } else
3355 card->info.hwtrap = 0;
3356
4a71df50 3357 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 3358 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 3359 qeth_print_status_message(card);
3360
3361 /* softsetup */
d11ba0c4 3362 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 3363
3364 rc = qeth_send_startlan(card);
3365 if (rc) {
d11ba0c4 3366 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 3367 if (rc == 0xe080) {
74eacdb9
FB		 3368 dev_warn(&card->gdev->dev,
3369 "The LAN is offline\n");
4a71df50 3370 card->lan_online = 0;
2b6203bb 3371 goto contin;
4a71df50 3372 }
aa909224 3373 rc = -ENODEV;
f2148565 3374 goto out_remove;
4a71df50
FB		 3375 } else
3376 card->lan_online = 1;
4a71df50 3377
2b6203bb 3378contin:
4a71df50
FB		 3379 rc = qeth_l3_setadapter_parms(card);
3380 if (rc)
d11ba0c4 3381 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
76b11f8e
UB		 3382 if (!card->options.sniffer) {
3383 rc = qeth_l3_start_ipassists(card);
3384 if (rc)
3385 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
76b11f8e
UB		 3386 rc = qeth_l3_setrouting_v4(card);
3387 if (rc)
3388 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3389 rc = qeth_l3_setrouting_v6(card);
3390 if (rc)
3391 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3392 }
4a71df50
FB		 3393 netif_tx_disable(card->dev);
3394
3395 rc = qeth_init_qdio_queues(card);
3396 if (rc) {
d11ba0c4 3397 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 3398 rc = -ENODEV;
4a71df50
FB		 3399 goto out_remove;
3400 }
3401 card->state = CARD_STATE_SOFTSETUP;
4a71df50
FB		 3402
3403 qeth_set_allowed_threads(card, 0xffffffff, 0);
e8069040 3404 qeth_l3_set_ip_addr_list(card);
2b6203bb
UB		 3405 if (card->lan_online)
3406 netif_carrier_on(card->dev);
3407 else
3408 netif_carrier_off(card->dev);
8af7c5ae 3409 if (recover_flag == CARD_STATE_RECOVER) {
4763b0a0 3410 rtnl_lock();
8af7c5ae 3411 if (recovery_mode)
39423440 3412 __qeth_l3_open(card->dev);
4763b0a0 3413 else
8af7c5ae 3414 dev_open(card->dev);
8af7c5ae 3415 qeth_l3_set_multicast_list(card->dev);
4763b0a0 3416 rtnl_unlock();
4a71df50
FB		 3417 }
3418 /* let user_space know that device is online */
3419 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3420 mutex_unlock(&card->conf_mutex);
9dc48ccc 3421 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3422 return 0;
3423out_remove:
4a71df50
FB		 3424 qeth_l3_stop_card(card, 0);
3425 ccw_device_set_offline(CARD_DDEV(card));
3426 ccw_device_set_offline(CARD_WDEV(card));
3427 ccw_device_set_offline(CARD_RDEV(card));
3428 if (recover_flag == CARD_STATE_RECOVER)
3429 card->state = CARD_STATE_RECOVER;
3430 else
3431 card->state = CARD_STATE_DOWN;
c4949f07 3432 mutex_unlock(&card->conf_mutex);
9dc48ccc 3433 mutex_unlock(&card->discipline_mutex);
aa909224 3434 return rc;
4a71df50
FB		 3435}
3436
3437static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3438{
3439 return __qeth_l3_set_online(gdev, 0);
3440}
3441
3442static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3443 int recovery_mode)
3444{
3445 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3446 int rc = 0, rc2 = 0, rc3 = 0;
3447 enum qeth_card_states recover_flag;
3448
9dc48ccc 3449 mutex_lock(&card->discipline_mutex);
c4949f07 3450 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3451 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3452 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 3453
3454 if (card->dev && netif_carrier_ok(card->dev))
3455 netif_carrier_off(card->dev);
3456 recover_flag = card->state;
1da74b1c
FB		 3457 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3458 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3459 card->info.hwtrap = 1;
3460 }
0f5623c9 3461 qeth_l3_stop_card(card, recovery_mode);
72861ae7
EL		 3462 if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
3463 rtnl_lock();
3464 call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
3465 rtnl_unlock();
3466 }
4a71df50
FB		 3467 rc = ccw_device_set_offline(CARD_DDEV(card));
3468 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3469 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3470 if (!rc)
3471 rc = (rc2) ? rc2 : rc3;
3472 if (rc)
d11ba0c4 3473 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50
FB		 3474 if (recover_flag == CARD_STATE_UP)
3475 card->state = CARD_STATE_RECOVER;
3476 /* let user_space know that device is offline */
3477 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3478 mutex_unlock(&card->conf_mutex);
9dc48ccc 3479 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3480 return 0;
3481}
3482
3483static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3484{
3485 return __qeth_l3_set_offline(cgdev, 0);
3486}
3487
3488static int qeth_l3_recover(void *ptr)
3489{
3490 struct qeth_card *card;
3491 int rc = 0;
3492
3493 card = (struct qeth_card *) ptr;
847a50fd
CO		 3494 QETH_CARD_TEXT(card, 2, "recover1");
3495 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
4a71df50
FB		 3496 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3497 return 0;
847a50fd 3498 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 3499 dev_warn(&card->gdev->dev,
3500 "A recovery process has been started for the device\n");
4a71df50
FB		 3501 __qeth_l3_set_offline(card->gdev, 1);
3502 rc = __qeth_l3_set_online(card->gdev, 1);
4a71df50 3503 if (!rc)
74eacdb9
FB		 3504 dev_info(&card->gdev->dev,
3505 "Device successfully recovered!\n");
28a7e4c9
UB		 3506 else {
3507 rtnl_lock();
3508 dev_close(card->dev);
3509 rtnl_unlock();
74eacdb9
FB		 3510 dev_warn(&card->gdev->dev, "The qeth device driver "
3511 "failed to recover an error on the device\n");
28a7e4c9 3512 }
a1c3ed4c
FB		 3513 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3514 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 3515 return 0;
3516}
3517
3518static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3519{
3520 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
f78ac2bb 3521 qeth_set_allowed_threads(card, 0, 1);
1da74b1c
FB		 3522 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
3523 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
4a71df50
FB		 3524 qeth_qdio_clear_card(card, 0);
3525 qeth_clear_qdio_buffers(card);
3526}
3527
bbcfcdc8
FB		 3528static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3529{
3530 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3531
3532 if (card->dev)
3533 netif_device_detach(card->dev);
3534 qeth_set_allowed_threads(card, 0, 1);
3535 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3536 if (gdev->state == CCWGROUP_OFFLINE)
3537 return 0;
3538 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 3539 if (card->info.hwtrap)
3540 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 3541 __qeth_l3_set_offline(card->gdev, 1);
3542 } else
3543 __qeth_l3_set_offline(card->gdev, 0);
3544 return 0;
3545}
3546
3547static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3548{
3549 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3550 int rc = 0;
3551
3552 if (gdev->state == CCWGROUP_OFFLINE)
3553 goto out;
3554
3555 if (card->state == CARD_STATE_RECOVER) {
3556 rc = __qeth_l3_set_online(card->gdev, 1);
3557 if (rc) {
869da90b
UB		 3558 rtnl_lock();
3559 dev_close(card->dev);
3560 rtnl_unlock();
bbcfcdc8
FB		 3561 }
3562 } else
3563 rc = __qeth_l3_set_online(card->gdev, 0);
3564out:
3565 qeth_set_allowed_threads(card, 0xffffffff, 0);
3566 if (card->dev)
3567 netif_device_attach(card->dev);
3568 if (rc)
3569 dev_warn(&card->gdev->dev, "The qeth device driver "
3570 "failed to recover an error on the device\n");
3571 return rc;
3572}
3573
c041f2d4
SO		 3574struct qeth_discipline qeth_l3_discipline = {
3575 .start_poll = qeth_qdio_start_poll,
3576 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
3577 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
3578 .recover = qeth_l3_recover,
3579 .setup = qeth_l3_probe_device,
4a71df50
FB		 3580 .remove = qeth_l3_remove_device,
3581 .set_online = qeth_l3_set_online,
3582 .set_offline = qeth_l3_set_offline,
3583 .shutdown = qeth_l3_shutdown,
bbcfcdc8
FB		 3584 .freeze = qeth_l3_pm_suspend,
3585 .thaw = qeth_l3_pm_resume,
3586 .restore = qeth_l3_pm_resume,
4a71df50 3587};
c041f2d4 3588EXPORT_SYMBOL_GPL(qeth_l3_discipline);
4a71df50
FB		 3589
3590static int qeth_l3_ip_event(struct notifier_block *this,
76fef2b6 3591 unsigned long event, void *ptr)
4a71df50
FB		 3592{
3593 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3594 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3595 struct qeth_ipaddr *addr;
3596 struct qeth_card *card;
3597
c346dca1 3598 if (dev_net(dev) != &init_net)
76fef2b6
DM		 3599 return NOTIFY_DONE;
3600
4a71df50
FB		 3601 card = qeth_l3_get_card_from_dev(dev);
3602 if (!card)
3603 return NOTIFY_DONE;
6d8823db 3604 QETH_CARD_TEXT(card, 3, "ipevent");
4a71df50
FB		 3605
3606 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3607 if (addr != NULL) {
3608 addr->u.a4.addr = ifa->ifa_address;
3609 addr->u.a4.mask = ifa->ifa_mask;
3610 addr->type = QETH_IP_TYPE_NORMAL;
3611 } else
3612 goto out;
3613
3614 switch (event) {
3615 case NETDEV_UP:
3616 if (!qeth_l3_add_ip(card, addr))
3617 kfree(addr);
3618 break;
3619 case NETDEV_DOWN:
3620 if (!qeth_l3_delete_ip(card, addr))
3621 kfree(addr);
3622 break;
3623 default:
3624 break;
3625 }
3626 qeth_l3_set_ip_addr_list(card);
3627out:
3628 return NOTIFY_DONE;
3629}
3630
3631static struct notifier_block qeth_l3_ip_notifier = {
3632 qeth_l3_ip_event,
3633 NULL,
3634};
3635
3636#ifdef CONFIG_QETH_IPV6
3637/**
3638 * IPv6 event handler
3639 */
3640static int qeth_l3_ip6_event(struct notifier_block *this,
76fef2b6 3641 unsigned long event, void *ptr)
4a71df50
FB		 3642{
3643 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3644 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3645 struct qeth_ipaddr *addr;
3646 struct qeth_card *card;
3647
4a71df50
FB		 3648 card = qeth_l3_get_card_from_dev(dev);
3649 if (!card)
3650 return NOTIFY_DONE;
847a50fd 3651 QETH_CARD_TEXT(card, 3, "ip6event");
4a71df50
FB		 3652 if (!qeth_is_supported(card, IPA_IPV6))
3653 return NOTIFY_DONE;
3654
3655 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3656 if (addr != NULL) {
3657 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3658 addr->u.a6.pfxlen = ifa->prefix_len;
3659 addr->type = QETH_IP_TYPE_NORMAL;
3660 } else
3661 goto out;
3662
3663 switch (event) {
3664 case NETDEV_UP:
3665 if (!qeth_l3_add_ip(card, addr))
3666 kfree(addr);
3667 break;
3668 case NETDEV_DOWN:
3669 if (!qeth_l3_delete_ip(card, addr))
3670 kfree(addr);
3671 break;
3672 default:
3673 break;
3674 }
3675 qeth_l3_set_ip_addr_list(card);
3676out:
3677 return NOTIFY_DONE;
3678}
3679
3680static struct notifier_block qeth_l3_ip6_notifier = {
3681 qeth_l3_ip6_event,
3682 NULL,
3683};
3684#endif
3685
3686static int qeth_l3_register_notifiers(void)
3687{
3688 int rc;
3689
847a50fd 3690 QETH_DBF_TEXT(SETUP, 5, "regnotif");
4a71df50
FB		 3691 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3692 if (rc)
3693 return rc;
3694#ifdef CONFIG_QETH_IPV6
3695 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3696 if (rc) {
3697 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3698 return rc;
3699 }
3700#else
74eacdb9 3701 pr_warning("There is no IPv6 support for the layer 3 discipline\n");
4a71df50
FB		 3702#endif
3703 return 0;
3704}
3705
3706static void qeth_l3_unregister_notifiers(void)
3707{
3708
847a50fd 3709 QETH_DBF_TEXT(SETUP, 5, "unregnot");
4a71df50
FB		 3710 BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3711#ifdef CONFIG_QETH_IPV6
3712 BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3713#endif /* QETH_IPV6 */
3714}
3715
3716static int __init qeth_l3_init(void)
3717{
3718 int rc = 0;
3719
74eacdb9 3720 pr_info("register layer 3 discipline\n");
4a71df50
FB		 3721 rc = qeth_l3_register_notifiers();
3722 return rc;
3723}
3724
3725static void __exit qeth_l3_exit(void)
3726{
3727 qeth_l3_unregister_notifiers();
74eacdb9 3728 pr_info("unregister layer 3 discipline\n");
4a71df50
FB		 3729}
3730
3731module_init(qeth_l3_init);
3732module_exit(qeth_l3_exit);
3733MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3734MODULE_DESCRIPTION("qeth layer 3 discipline");
3735MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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