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af_iucv: allow retrieval of maximum message size
[deliverable/linux.git] / drivers / s390 / net / qeth_l3_main.c
CommitLineData
4a71df50
FB		 1/*
2 * drivers/s390/net/qeth_l3_main.c
3 *
bbcfcdc8 4 * Copyright IBM Corp. 2007, 2009
4a71df50
FB		 5 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
6 * Frank Pavlic <fpavlic@de.ibm.com>,
7 * Thomas Spatzier <tspat@de.ibm.com>,
8 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 */
10
74eacdb9
FB		 11#define KMSG_COMPONENT "qeth"
12#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
13
4a71df50
FB		 14#include <linux/module.h>
15#include <linux/moduleparam.h>
7ff0bcf6 16#include <linux/bitops.h>
4a71df50
FB		 17#include <linux/string.h>
18#include <linux/errno.h>
19#include <linux/kernel.h>
20#include <linux/etherdevice.h>
21#include <linux/mii.h>
22#include <linux/ip.h>
64ef8957 23#include <linux/ipv6.h>
4a71df50
FB		 24#include <linux/inetdevice.h>
25#include <linux/igmp.h>
5a0e3ad6 26#include <linux/slab.h>
7ff0bcf6 27#include <linux/if_vlan.h>
4a71df50
FB		 28
29#include <net/ip.h>
30#include <net/arp.h>
87e7597b
DM		 31#include <net/route.h>
32#include <net/ip6_fib.h>
64ef8957 33#include <net/ip6_checksum.h>
b3332930 34#include <net/iucv/af_iucv.h>
4a71df50 35
4a71df50 36#include "qeth_l3.h"
4a71df50 37
d0ddf30f 38
4a71df50
FB		 39static int qeth_l3_set_offline(struct ccwgroup_device *);
40static int qeth_l3_recover(void *);
41static int qeth_l3_stop(struct net_device *);
42static void qeth_l3_set_multicast_list(struct net_device *);
43static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
44static int qeth_l3_register_addr_entry(struct qeth_card *,
45 struct qeth_ipaddr *);
46static int qeth_l3_deregister_addr_entry(struct qeth_card *,
47 struct qeth_ipaddr *);
48static int __qeth_l3_set_online(struct ccwgroup_device *, int);
49static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
50
4a71df50
FB		 51static int qeth_l3_isxdigit(char *buf)
52{
53 while (*buf) {
54 if (!isxdigit(*buf++))
55 return 0;
56 }
57 return 1;
58}
59
60void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
61{
62 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
63}
64
65int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
66{
67 int count = 0, rc = 0;
68 int in[4];
69 char c;
70
71 rc = sscanf(buf, "%u.%u.%u.%u%c",
72 &in[0], &in[1], &in[2], &in[3], &c);
73 if (rc != 4 && (rc != 5 || c != '\n'))
74 return -EINVAL;
75 for (count = 0; count < 4; count++) {
76 if (in[count] > 255)
77 return -EINVAL;
78 addr[count] = in[count];
79 }
80 return 0;
81}
82
83void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
84{
963a9fd2 85 sprintf(buf, "%pI6", addr);
4a71df50
FB		 86}
87
88int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
89{
90 const char *end, *end_tmp, *start;
91 __u16 *in;
92 char num[5];
93 int num2, cnt, out, found, save_cnt;
94 unsigned short in_tmp[8] = {0, };
95
96 cnt = out = found = save_cnt = num2 = 0;
97 end = start = buf;
98 in = (__u16 *) addr;
99 memset(in, 0, 16);
100 while (*end) {
101 end = strchr(start, ':');
102 if (end == NULL) {
103 end = buf + strlen(buf);
104 end_tmp = strchr(start, '\n');
105 if (end_tmp != NULL)
106 end = end_tmp;
107 out = 1;
108 }
109 if ((end - start)) {
110 memset(num, 0, 5);
111 if ((end - start) > 4)
112 return -EINVAL;
113 memcpy(num, start, end - start);
114 if (!qeth_l3_isxdigit(num))
115 return -EINVAL;
116 sscanf(start, "%x", &num2);
117 if (found)
118 in_tmp[save_cnt++] = num2;
119 else
120 in[cnt++] = num2;
121 if (out)
122 break;
123 } else {
124 if (found)
125 return -EINVAL;
126 found = 1;
127 }
128 start = ++end;
129 }
130 if (cnt + save_cnt > 8)
131 return -EINVAL;
132 cnt = 7;
133 while (save_cnt)
134 in[cnt--] = in_tmp[--save_cnt];
135 return 0;
136}
137
138void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
139 char *buf)
140{
141 if (proto == QETH_PROT_IPV4)
142 qeth_l3_ipaddr4_to_string(addr, buf);
143 else if (proto == QETH_PROT_IPV6)
144 qeth_l3_ipaddr6_to_string(addr, buf);
145}
146
147int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
148 __u8 *addr)
149{
150 if (proto == QETH_PROT_IPV4)
151 return qeth_l3_string_to_ipaddr4(buf, addr);
152 else if (proto == QETH_PROT_IPV6)
153 return qeth_l3_string_to_ipaddr6(buf, addr);
154 else
155 return -EINVAL;
156}
157
158static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
159{
160 int i, j;
161 u8 octet;
162
163 for (i = 0; i < len; ++i) {
164 octet = addr[i];
165 for (j = 7; j >= 0; --j) {
166 bits[i*8 + j] = octet & 1;
167 octet >>= 1;
168 }
169 }
170}
171
6298263a 172int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
4a71df50
FB		 173 struct qeth_ipaddr *addr)
174{
175 struct qeth_ipato_entry *ipatoe;
176 u8 addr_bits[128] = {0, };
177 u8 ipatoe_bits[128] = {0, };
178 int rc = 0;
179
180 if (!card->ipato.enabled)
181 return 0;
182
183 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
184 (addr->proto == QETH_PROT_IPV4)? 4:16);
185 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
186 if (addr->proto != ipatoe->proto)
187 continue;
188 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
189 (ipatoe->proto == QETH_PROT_IPV4) ?
190 4 : 16);
191 if (addr->proto == QETH_PROT_IPV4)
192 rc = !memcmp(addr_bits, ipatoe_bits,
193 min(32, ipatoe->mask_bits));
194 else
195 rc = !memcmp(addr_bits, ipatoe_bits,
196 min(128, ipatoe->mask_bits));
197 if (rc)
198 break;
199 }
200 /* invert? */
201 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
202 rc = !rc;
203 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
204 rc = !rc;
205
206 return rc;
207}
208
209/*
210 * Add IP to be added to todo list. If there is already an "add todo"
211 * in this list we just incremenent the reference count.
212 * Returns 0 if we just incremented reference count.
213 */
214static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
215 struct qeth_ipaddr *addr, int add)
216{
217 struct qeth_ipaddr *tmp, *t;
218 int found = 0;
219
76b11f8e
UB		 220 if (card->options.sniffer)
221 return 0;
4a71df50
FB		 222 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
223 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
224 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
225 return 0;
226 if ((tmp->proto == QETH_PROT_IPV4) &&
227 (addr->proto == QETH_PROT_IPV4) &&
228 (tmp->type == addr->type) &&
229 (tmp->is_multicast == addr->is_multicast) &&
230 (tmp->u.a4.addr == addr->u.a4.addr) &&
231 (tmp->u.a4.mask == addr->u.a4.mask)) {
232 found = 1;
233 break;
234 }
235 if ((tmp->proto == QETH_PROT_IPV6) &&
236 (addr->proto == QETH_PROT_IPV6) &&
237 (tmp->type == addr->type) &&
238 (tmp->is_multicast == addr->is_multicast) &&
239 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
240 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
241 sizeof(struct in6_addr)) == 0)) {
242 found = 1;
243 break;
244 }
245 }
246 if (found) {
247 if (addr->users != 0)
248 tmp->users += addr->users;
249 else
250 tmp->users += add ? 1 : -1;
251 if (tmp->users == 0) {
252 list_del(&tmp->entry);
253 kfree(tmp);
254 }
255 return 0;
256 } else {
257 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
258 list_add(&addr->entry, card->ip_tbd_list);
259 else {
260 if (addr->users == 0)
261 addr->users += add ? 1 : -1;
262 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
263 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
847a50fd 264 QETH_CARD_TEXT(card, 2, "tkovaddr");
4a71df50
FB		 265 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
266 }
267 list_add_tail(&addr->entry, card->ip_tbd_list);
268 }
269 return 1;
270 }
271}
272
b3332930 273int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
4a71df50
FB		 274{
275 unsigned long flags;
276 int rc = 0;
277
847a50fd 278 QETH_CARD_TEXT(card, 4, "delip");
4a71df50
FB		 279
280 if (addr->proto == QETH_PROT_IPV4)
847a50fd 281 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
4a71df50 282 else {
847a50fd
CO		 283 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
284 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50
FB		 285 }
286 spin_lock_irqsave(&card->ip_lock, flags);
287 rc = __qeth_l3_insert_ip_todo(card, addr, 0);
288 spin_unlock_irqrestore(&card->ip_lock, flags);
289 return rc;
290}
291
b3332930 292int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
4a71df50
FB		 293{
294 unsigned long flags;
295 int rc = 0;
296
847a50fd 297 QETH_CARD_TEXT(card, 4, "addip");
4a71df50 298 if (addr->proto == QETH_PROT_IPV4)
847a50fd 299 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
4a71df50 300 else {
847a50fd
CO		 301 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
302 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50
FB		 303 }
304 spin_lock_irqsave(&card->ip_lock, flags);
305 rc = __qeth_l3_insert_ip_todo(card, addr, 1);
306 spin_unlock_irqrestore(&card->ip_lock, flags);
307 return rc;
308}
309
310
b3332930 311struct qeth_ipaddr *qeth_l3_get_addr_buffer(
4a71df50
FB		 312 enum qeth_prot_versions prot)
313{
314 struct qeth_ipaddr *addr;
315
316 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
317 if (addr == NULL) {
4a71df50
FB		 318 return NULL;
319 }
320 addr->type = QETH_IP_TYPE_NORMAL;
321 addr->proto = prot;
322 return addr;
323}
324
325static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
326{
327 struct qeth_ipaddr *iptodo;
328 unsigned long flags;
329
847a50fd 330 QETH_CARD_TEXT(card, 4, "delmc");
4a71df50
FB		 331 iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
332 if (!iptodo) {
847a50fd 333 QETH_CARD_TEXT(card, 2, "dmcnomem");
4a71df50
FB		 334 return;
335 }
336 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
337 spin_lock_irqsave(&card->ip_lock, flags);
338 if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
339 kfree(iptodo);
340 spin_unlock_irqrestore(&card->ip_lock, flags);
341}
342
343/*
344 * Add/remove address to/from card's ip list, i.e. try to add or remove
345 * reference to/from an IP address that is already registered on the card.
346 * Returns:
347 * 0 address was on card and its reference count has been adjusted,
348 * but is still > 0, so nothing has to be done
349 * also returns 0 if card was not on card and the todo was to delete
350 * the address -> there is also nothing to be done
351 * 1 address was not on card and the todo is to add it to the card's ip
352 * list
353 * -1 address was on card and its reference count has been decremented
354 * to <= 0 by the todo -> address must be removed from card
355 */
356static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
357 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
358{
359 struct qeth_ipaddr *addr;
360 int found = 0;
361
362 list_for_each_entry(addr, &card->ip_list, entry) {
363 if ((addr->proto == QETH_PROT_IPV4) &&
364 (todo->proto == QETH_PROT_IPV4) &&
365 (addr->type == todo->type) &&
366 (addr->u.a4.addr == todo->u.a4.addr) &&
367 (addr->u.a4.mask == todo->u.a4.mask)) {
368 found = 1;
369 break;
370 }
371 if ((addr->proto == QETH_PROT_IPV6) &&
372 (todo->proto == QETH_PROT_IPV6) &&
373 (addr->type == todo->type) &&
374 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
375 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
376 sizeof(struct in6_addr)) == 0)) {
377 found = 1;
378 break;
379 }
380 }
381 if (found) {
382 addr->users += todo->users;
383 if (addr->users <= 0) {
384 *__addr = addr;
385 return -1;
386 } else {
387 /* for VIPA and RXIP limit refcount to 1 */
388 if (addr->type != QETH_IP_TYPE_NORMAL)
389 addr->users = 1;
390 return 0;
391 }
392 }
393 if (todo->users > 0) {
394 /* for VIPA and RXIP limit refcount to 1 */
395 if (todo->type != QETH_IP_TYPE_NORMAL)
396 todo->users = 1;
397 return 1;
398 } else
399 return 0;
400}
401
402static void __qeth_l3_delete_all_mc(struct qeth_card *card,
403 unsigned long *flags)
404{
2d921c32 405 struct list_head fail_list;
4a71df50
FB		 406 struct qeth_ipaddr *addr, *tmp;
407 int rc;
2d921c32
UB		 408
409 INIT_LIST_HEAD(&fail_list);
4a71df50
FB		 410again:
411 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
412 if (addr->is_multicast) {
413 list_del(&addr->entry);
414 spin_unlock_irqrestore(&card->ip_lock, *flags);
415 rc = qeth_l3_deregister_addr_entry(card, addr);
416 spin_lock_irqsave(&card->ip_lock, *flags);
2d921c32 417 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
4a71df50 418 kfree(addr);
2d921c32
UB		 419 else
420 list_add_tail(&addr->entry, &fail_list);
421 goto again;
4a71df50
FB		 422 }
423 }
2d921c32 424 list_splice(&fail_list, &card->ip_list);
4a71df50
FB		 425}
426
b3332930 427void qeth_l3_set_ip_addr_list(struct qeth_card *card)
4a71df50
FB		 428{
429 struct list_head *tbd_list;
430 struct qeth_ipaddr *todo, *addr;
431 unsigned long flags;
432 int rc;
433
847a50fd
CO		 434 QETH_CARD_TEXT(card, 2, "sdiplist");
435 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
4a71df50 436
f154b79c
EL		 437 if ((card->state != CARD_STATE_UP &&
438 card->state != CARD_STATE_SOFTSETUP) || card->options.sniffer) {
76b11f8e 439 return;
f154b79c
EL		 440 }
441
4a71df50
FB		 442 spin_lock_irqsave(&card->ip_lock, flags);
443 tbd_list = card->ip_tbd_list;
b3332930 444 card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_ATOMIC);
4a71df50 445 if (!card->ip_tbd_list) {
847a50fd 446 QETH_CARD_TEXT(card, 0, "silnomem");
4a71df50
FB		 447 card->ip_tbd_list = tbd_list;
448 spin_unlock_irqrestore(&card->ip_lock, flags);
449 return;
450 } else
451 INIT_LIST_HEAD(card->ip_tbd_list);
452
453 while (!list_empty(tbd_list)) {
454 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
455 list_del(&todo->entry);
456 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
457 __qeth_l3_delete_all_mc(card, &flags);
458 kfree(todo);
459 continue;
460 }
461 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
462 if (rc == 0) {
463 /* nothing to be done; only adjusted refcount */
464 kfree(todo);
465 } else if (rc == 1) {
466 /* new entry to be added to on-card list */
467 spin_unlock_irqrestore(&card->ip_lock, flags);
468 rc = qeth_l3_register_addr_entry(card, todo);
469 spin_lock_irqsave(&card->ip_lock, flags);
3caa4af8 470 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
4a71df50
FB		 471 list_add_tail(&todo->entry, &card->ip_list);
472 else
473 kfree(todo);
474 } else if (rc == -1) {
475 /* on-card entry to be removed */
476 list_del_init(&addr->entry);
477 spin_unlock_irqrestore(&card->ip_lock, flags);
478 rc = qeth_l3_deregister_addr_entry(card, addr);
479 spin_lock_irqsave(&card->ip_lock, flags);
76b11f8e 480 if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
4a71df50
FB		 481 kfree(addr);
482 else
483 list_add_tail(&addr->entry, &card->ip_list);
484 kfree(todo);
485 }
486 }
487 spin_unlock_irqrestore(&card->ip_lock, flags);
488 kfree(tbd_list);
489}
490
70919e23 491static void qeth_l3_clear_ip_list(struct qeth_card *card, int recover)
4a71df50
FB		 492{
493 struct qeth_ipaddr *addr, *tmp;
494 unsigned long flags;
495
847a50fd 496 QETH_CARD_TEXT(card, 4, "clearip");
76b11f8e
UB		 497 if (recover && card->options.sniffer)
498 return;
4a71df50
FB		 499 spin_lock_irqsave(&card->ip_lock, flags);
500 /* clear todo list */
501 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
502 list_del(&addr->entry);
503 kfree(addr);
504 }
505
506 while (!list_empty(&card->ip_list)) {
507 addr = list_entry(card->ip_list.next,
508 struct qeth_ipaddr, entry);
509 list_del_init(&addr->entry);
4a71df50
FB		 510 if (!recover || addr->is_multicast) {
511 kfree(addr);
512 continue;
513 }
514 list_add_tail(&addr->entry, card->ip_tbd_list);
515 }
516 spin_unlock_irqrestore(&card->ip_lock, flags);
517}
518
519static int qeth_l3_address_exists_in_list(struct list_head *list,
520 struct qeth_ipaddr *addr, int same_type)
521{
522 struct qeth_ipaddr *tmp;
523
524 list_for_each_entry(tmp, list, entry) {
525 if ((tmp->proto == QETH_PROT_IPV4) &&
526 (addr->proto == QETH_PROT_IPV4) &&
527 ((same_type && (tmp->type == addr->type)) ||
528 (!same_type && (tmp->type != addr->type))) &&
529 (tmp->u.a4.addr == addr->u.a4.addr))
530 return 1;
531
532 if ((tmp->proto == QETH_PROT_IPV6) &&
533 (addr->proto == QETH_PROT_IPV6) &&
534 ((same_type && (tmp->type == addr->type)) ||
535 (!same_type && (tmp->type != addr->type))) &&
536 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
537 sizeof(struct in6_addr)) == 0))
538 return 1;
539
540 }
541 return 0;
542}
543
544static int qeth_l3_send_setdelmc(struct qeth_card *card,
545 struct qeth_ipaddr *addr, int ipacmd)
546{
547 int rc;
548 struct qeth_cmd_buffer *iob;
549 struct qeth_ipa_cmd *cmd;
550
847a50fd 551 QETH_CARD_TEXT(card, 4, "setdelmc");
4a71df50
FB		 552
553 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
554 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
555 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
556 if (addr->proto == QETH_PROT_IPV6)
557 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
558 sizeof(struct in6_addr));
559 else
560 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
561
562 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
563
564 return rc;
565}
566
567static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
568{
569 int i, j;
570 for (i = 0; i < 16; i++) {
571 j = (len) - (i * 8);
572 if (j >= 8)
573 netmask[i] = 0xff;
574 else if (j > 0)
575 netmask[i] = (u8)(0xFF00 >> j);
576 else
577 netmask[i] = 0;
578 }
579}
580
581static int qeth_l3_send_setdelip(struct qeth_card *card,
582 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
583{
584 int rc;
585 struct qeth_cmd_buffer *iob;
586 struct qeth_ipa_cmd *cmd;
587 __u8 netmask[16];
588
847a50fd
CO		 589 QETH_CARD_TEXT(card, 4, "setdelip");
590 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
4a71df50
FB		 591
592 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
593 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
594 if (addr->proto == QETH_PROT_IPV6) {
595 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
596 sizeof(struct in6_addr));
597 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
598 memcpy(cmd->data.setdelip6.mask, netmask,
599 sizeof(struct in6_addr));
600 cmd->data.setdelip6.flags = flags;
601 } else {
602 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
603 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
604 cmd->data.setdelip4.flags = flags;
605 }
606
607 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
608
609 return rc;
610}
611
612static int qeth_l3_send_setrouting(struct qeth_card *card,
613 enum qeth_routing_types type, enum qeth_prot_versions prot)
614{
615 int rc;
616 struct qeth_ipa_cmd *cmd;
617 struct qeth_cmd_buffer *iob;
618
847a50fd 619 QETH_CARD_TEXT(card, 4, "setroutg");
4a71df50
FB		 620 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
621 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
622 cmd->data.setrtg.type = (type);
623 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
624
625 return rc;
626}
627
628static void qeth_l3_correct_routing_type(struct qeth_card *card,
629 enum qeth_routing_types *type, enum qeth_prot_versions prot)
630{
631 if (card->info.type == QETH_CARD_TYPE_IQD) {
632 switch (*type) {
633 case NO_ROUTER:
634 case PRIMARY_CONNECTOR:
635 case SECONDARY_CONNECTOR:
636 case MULTICAST_ROUTER:
637 return;
638 default:
639 goto out_inval;
640 }
641 } else {
642 switch (*type) {
643 case NO_ROUTER:
644 case PRIMARY_ROUTER:
645 case SECONDARY_ROUTER:
646 return;
647 case MULTICAST_ROUTER:
648 if (qeth_is_ipafunc_supported(card, prot,
649 IPA_OSA_MC_ROUTER))
650 return;
651 default:
652 goto out_inval;
653 }
654 }
655out_inval:
4a71df50
FB		 656 *type = NO_ROUTER;
657}
658
659int qeth_l3_setrouting_v4(struct qeth_card *card)
660{
661 int rc;
662
847a50fd 663 QETH_CARD_TEXT(card, 3, "setrtg4");
4a71df50
FB		 664
665 qeth_l3_correct_routing_type(card, &card->options.route4.type,
666 QETH_PROT_IPV4);
667
668 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
669 QETH_PROT_IPV4);
670 if (rc) {
671 card->options.route4.type = NO_ROUTER;
14cc21b6
FB		 672 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
673 " on %s. Type set to 'no router'.\n", rc,
674 QETH_CARD_IFNAME(card));
4a71df50
FB		 675 }
676 return rc;
677}
678
679int qeth_l3_setrouting_v6(struct qeth_card *card)
680{
681 int rc = 0;
682
847a50fd 683 QETH_CARD_TEXT(card, 3, "setrtg6");
4a71df50
FB		 684#ifdef CONFIG_QETH_IPV6
685
686 if (!qeth_is_supported(card, IPA_IPV6))
687 return 0;
688 qeth_l3_correct_routing_type(card, &card->options.route6.type,
689 QETH_PROT_IPV6);
690
691 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
692 QETH_PROT_IPV6);
693 if (rc) {
694 card->options.route6.type = NO_ROUTER;
14cc21b6
FB		 695 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
696 " on %s. Type set to 'no router'.\n", rc,
697 QETH_CARD_IFNAME(card));
4a71df50
FB		 698 }
699#endif
700 return rc;
701}
702
703/*
704 * IP address takeover related functions
705 */
706static void qeth_l3_clear_ipato_list(struct qeth_card *card)
707{
708
709 struct qeth_ipato_entry *ipatoe, *tmp;
710 unsigned long flags;
711
712 spin_lock_irqsave(&card->ip_lock, flags);
713 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
714 list_del(&ipatoe->entry);
715 kfree(ipatoe);
716 }
717 spin_unlock_irqrestore(&card->ip_lock, flags);
718}
719
720int qeth_l3_add_ipato_entry(struct qeth_card *card,
721 struct qeth_ipato_entry *new)
722{
723 struct qeth_ipato_entry *ipatoe;
724 unsigned long flags;
725 int rc = 0;
726
847a50fd 727 QETH_CARD_TEXT(card, 2, "addipato");
4a71df50
FB		 728 spin_lock_irqsave(&card->ip_lock, flags);
729 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
730 if (ipatoe->proto != new->proto)
731 continue;
732 if (!memcmp(ipatoe->addr, new->addr,
733 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
734 (ipatoe->mask_bits == new->mask_bits)) {
4a71df50
FB		 735 rc = -EEXIST;
736 break;
737 }
738 }
739 if (!rc)
740 list_add_tail(&new->entry, &card->ipato.entries);
741
742 spin_unlock_irqrestore(&card->ip_lock, flags);
743 return rc;
744}
745
746void qeth_l3_del_ipato_entry(struct qeth_card *card,
747 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
748{
749 struct qeth_ipato_entry *ipatoe, *tmp;
750 unsigned long flags;
751
847a50fd 752 QETH_CARD_TEXT(card, 2, "delipato");
4a71df50
FB		 753 spin_lock_irqsave(&card->ip_lock, flags);
754 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
755 if (ipatoe->proto != proto)
756 continue;
757 if (!memcmp(ipatoe->addr, addr,
758 (proto == QETH_PROT_IPV4)? 4:16) &&
759 (ipatoe->mask_bits == mask_bits)) {
760 list_del(&ipatoe->entry);
761 kfree(ipatoe);
762 }
763 }
764 spin_unlock_irqrestore(&card->ip_lock, flags);
765}
766
767/*
768 * VIPA related functions
769 */
770int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
771 const u8 *addr)
772{
773 struct qeth_ipaddr *ipaddr;
774 unsigned long flags;
775 int rc = 0;
776
777 ipaddr = qeth_l3_get_addr_buffer(proto);
778 if (ipaddr) {
779 if (proto == QETH_PROT_IPV4) {
847a50fd 780 QETH_CARD_TEXT(card, 2, "addvipa4");
4a71df50
FB		 781 memcpy(&ipaddr->u.a4.addr, addr, 4);
782 ipaddr->u.a4.mask = 0;
783 } else if (proto == QETH_PROT_IPV6) {
847a50fd 784 QETH_CARD_TEXT(card, 2, "addvipa6");
4a71df50
FB		 785 memcpy(&ipaddr->u.a6.addr, addr, 16);
786 ipaddr->u.a6.pfxlen = 0;
787 }
788 ipaddr->type = QETH_IP_TYPE_VIPA;
789 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
790 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
791 } else
792 return -ENOMEM;
793 spin_lock_irqsave(&card->ip_lock, flags);
794 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
795 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
796 rc = -EEXIST;
797 spin_unlock_irqrestore(&card->ip_lock, flags);
798 if (rc) {
4a71df50
FB		 799 return rc;
800 }
801 if (!qeth_l3_add_ip(card, ipaddr))
802 kfree(ipaddr);
803 qeth_l3_set_ip_addr_list(card);
804 return rc;
805}
806
807void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
808 const u8 *addr)
809{
810 struct qeth_ipaddr *ipaddr;
811
812 ipaddr = qeth_l3_get_addr_buffer(proto);
813 if (ipaddr) {
814 if (proto == QETH_PROT_IPV4) {
847a50fd 815 QETH_CARD_TEXT(card, 2, "delvipa4");
4a71df50
FB		 816 memcpy(&ipaddr->u.a4.addr, addr, 4);
817 ipaddr->u.a4.mask = 0;
818 } else if (proto == QETH_PROT_IPV6) {
847a50fd 819 QETH_CARD_TEXT(card, 2, "delvipa6");
4a71df50
FB		 820 memcpy(&ipaddr->u.a6.addr, addr, 16);
821 ipaddr->u.a6.pfxlen = 0;
822 }
823 ipaddr->type = QETH_IP_TYPE_VIPA;
824 } else
825 return;
826 if (!qeth_l3_delete_ip(card, ipaddr))
827 kfree(ipaddr);
828 qeth_l3_set_ip_addr_list(card);
829}
830
831/*
832 * proxy ARP related functions
833 */
834int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
835 const u8 *addr)
836{
837 struct qeth_ipaddr *ipaddr;
838 unsigned long flags;
839 int rc = 0;
840
841 ipaddr = qeth_l3_get_addr_buffer(proto);
842 if (ipaddr) {
843 if (proto == QETH_PROT_IPV4) {
847a50fd 844 QETH_CARD_TEXT(card, 2, "addrxip4");
4a71df50
FB		 845 memcpy(&ipaddr->u.a4.addr, addr, 4);
846 ipaddr->u.a4.mask = 0;
847 } else if (proto == QETH_PROT_IPV6) {
847a50fd 848 QETH_CARD_TEXT(card, 2, "addrxip6");
4a71df50
FB		 849 memcpy(&ipaddr->u.a6.addr, addr, 16);
850 ipaddr->u.a6.pfxlen = 0;
851 }
852 ipaddr->type = QETH_IP_TYPE_RXIP;
853 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
854 ipaddr->del_flags = 0;
855 } else
856 return -ENOMEM;
857 spin_lock_irqsave(&card->ip_lock, flags);
858 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
859 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
860 rc = -EEXIST;
861 spin_unlock_irqrestore(&card->ip_lock, flags);
862 if (rc) {
4a71df50
FB		 863 return rc;
864 }
865 if (!qeth_l3_add_ip(card, ipaddr))
866 kfree(ipaddr);
867 qeth_l3_set_ip_addr_list(card);
868 return 0;
869}
870
871void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
872 const u8 *addr)
873{
874 struct qeth_ipaddr *ipaddr;
875
876 ipaddr = qeth_l3_get_addr_buffer(proto);
877 if (ipaddr) {
878 if (proto == QETH_PROT_IPV4) {
847a50fd 879 QETH_CARD_TEXT(card, 2, "addrxip4");
4a71df50
FB		 880 memcpy(&ipaddr->u.a4.addr, addr, 4);
881 ipaddr->u.a4.mask = 0;
882 } else if (proto == QETH_PROT_IPV6) {
847a50fd 883 QETH_CARD_TEXT(card, 2, "addrxip6");
4a71df50
FB		 884 memcpy(&ipaddr->u.a6.addr, addr, 16);
885 ipaddr->u.a6.pfxlen = 0;
886 }
887 ipaddr->type = QETH_IP_TYPE_RXIP;
888 } else
889 return;
890 if (!qeth_l3_delete_ip(card, ipaddr))
891 kfree(ipaddr);
892 qeth_l3_set_ip_addr_list(card);
893}
894
895static int qeth_l3_register_addr_entry(struct qeth_card *card,
896 struct qeth_ipaddr *addr)
897{
898 char buf[50];
899 int rc = 0;
900 int cnt = 3;
901
902 if (addr->proto == QETH_PROT_IPV4) {
847a50fd
CO		 903 QETH_CARD_TEXT(card, 2, "setaddr4");
904 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 905 } else if (addr->proto == QETH_PROT_IPV6) {
847a50fd
CO		 906 QETH_CARD_TEXT(card, 2, "setaddr6");
907 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
908 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 909 } else {
847a50fd
CO		 910 QETH_CARD_TEXT(card, 2, "setaddr?");
911 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 912 }
913 do {
914 if (addr->is_multicast)
915 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
916 else
917 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
918 addr->set_flags);
919 if (rc)
847a50fd 920 QETH_CARD_TEXT(card, 2, "failed");
4a71df50
FB		 921 } while ((--cnt > 0) && rc);
922 if (rc) {
847a50fd 923 QETH_CARD_TEXT(card, 2, "FAILED");
4a71df50 924 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
74eacdb9
FB		 925 dev_warn(&card->gdev->dev,
926 "Registering IP address %s failed\n", buf);
4a71df50
FB		 927 }
928 return rc;
929}
930
931static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
932 struct qeth_ipaddr *addr)
933{
934 int rc = 0;
935
936 if (addr->proto == QETH_PROT_IPV4) {
847a50fd
CO		 937 QETH_CARD_TEXT(card, 2, "deladdr4");
938 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 939 } else if (addr->proto == QETH_PROT_IPV6) {
847a50fd
CO		 940 QETH_CARD_TEXT(card, 2, "deladdr6");
941 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
942 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 943 } else {
847a50fd
CO		 944 QETH_CARD_TEXT(card, 2, "deladdr?");
945 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 946 }
947 if (addr->is_multicast)
948 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
949 else
950 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
951 addr->del_flags);
c4cef07c 952 if (rc)
847a50fd 953 QETH_CARD_TEXT(card, 2, "failed");
4a71df50
FB		 954
955 return rc;
956}
957
958static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
959{
960 if (cast_type == RTN_MULTICAST)
961 return QETH_CAST_MULTICAST;
962 if (cast_type == RTN_BROADCAST)
963 return QETH_CAST_BROADCAST;
964 return QETH_CAST_UNICAST;
965}
966
967static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
968{
969 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
970 if (cast_type == RTN_MULTICAST)
971 return ct | QETH_CAST_MULTICAST;
972 if (cast_type == RTN_ANYCAST)
973 return ct | QETH_CAST_ANYCAST;
974 if (cast_type == RTN_BROADCAST)
975 return ct | QETH_CAST_BROADCAST;
976 return ct | QETH_CAST_UNICAST;
977}
978
979static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
980 __u32 mode)
981{
982 int rc;
983 struct qeth_cmd_buffer *iob;
984 struct qeth_ipa_cmd *cmd;
985
847a50fd 986 QETH_CARD_TEXT(card, 4, "adpmode");
4a71df50
FB		 987
988 iob = qeth_get_adapter_cmd(card, command,
989 sizeof(struct qeth_ipacmd_setadpparms));
990 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
991 cmd->data.setadapterparms.data.mode = mode;
992 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
993 NULL);
994 return rc;
995}
996
997static int qeth_l3_setadapter_hstr(struct qeth_card *card)
998{
999 int rc;
1000
847a50fd 1001 QETH_CARD_TEXT(card, 4, "adphstr");
4a71df50
FB		 1002
1003 if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
1004 rc = qeth_l3_send_setadp_mode(card,
1005 IPA_SETADP_SET_BROADCAST_MODE,
1006 card->options.broadcast_mode);
1007 if (rc)
14cc21b6 1008 QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
4a71df50
FB		 1009 "device %s: x%x\n",
1010 CARD_BUS_ID(card), rc);
1011 rc = qeth_l3_send_setadp_mode(card,
1012 IPA_SETADP_ALTER_MAC_ADDRESS,
1013 card->options.macaddr_mode);
1014 if (rc)
14cc21b6 1015 QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
4a71df50
FB		 1016 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1017 return rc;
1018 }
1019 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
14cc21b6 1020 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
4a71df50
FB		 1021 "to set broadcast mode, using ALLRINGS "
1022 "on device %s:\n", CARD_BUS_ID(card));
1023 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
14cc21b6 1024 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
4a71df50
FB		 1025 "to set macaddr mode, using NONCANONICAL "
1026 "on device %s:\n", CARD_BUS_ID(card));
1027 return 0;
1028}
1029
1030static int qeth_l3_setadapter_parms(struct qeth_card *card)
1031{
1032 int rc;
1033
d11ba0c4 1034 QETH_DBF_TEXT(SETUP, 2, "setadprm");
4a71df50
FB		 1035
1036 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
74eacdb9
FB		 1037 dev_info(&card->gdev->dev,
1038 "set adapter parameters not supported.\n");
d11ba0c4 1039 QETH_DBF_TEXT(SETUP, 2, " notsupp");
4a71df50
FB		 1040 return 0;
1041 }
1042 rc = qeth_query_setadapterparms(card);
1043 if (rc) {
74eacdb9 1044 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
7f6d95e7 1045 "0x%x\n", dev_name(&card->gdev->dev), rc);
4a71df50
FB		 1046 return rc;
1047 }
1048 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1049 rc = qeth_setadpparms_change_macaddr(card);
1050 if (rc)
74eacdb9 1051 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
6ea2fde1 1052 " address failed\n");
4a71df50
FB		 1053 }
1054
1055 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1056 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1057 rc = qeth_l3_setadapter_hstr(card);
1058
1059 return rc;
1060}
1061
1062static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1063 struct qeth_reply *reply, unsigned long data)
1064{
1065 struct qeth_ipa_cmd *cmd;
1066
847a50fd 1067 QETH_CARD_TEXT(card, 4, "defadpcb");
4a71df50
FB		 1068
1069 cmd = (struct qeth_ipa_cmd *) data;
1070 if (cmd->hdr.return_code == 0) {
1071 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1072 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1073 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1074 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1075 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1076 }
1077 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1078 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1079 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
847a50fd 1080 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
4a71df50 1081 }
f6b85b6c
FB		 1082 if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1083 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1084 card->info.tx_csum_mask =
1085 cmd->data.setassparms.data.flags_32bit;
847a50fd 1086 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
f6b85b6c
FB		 1087 }
1088
4a71df50
FB		 1089 return 0;
1090}
1091
1092static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1093 struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1094 __u16 len, enum qeth_prot_versions prot)
1095{
1096 struct qeth_cmd_buffer *iob;
1097 struct qeth_ipa_cmd *cmd;
1098
847a50fd 1099 QETH_CARD_TEXT(card, 4, "getasscm");
4a71df50
FB		 1100 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1101
1102 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1103 cmd->data.setassparms.hdr.assist_no = ipa_func;
1104 cmd->data.setassparms.hdr.length = 8 + len;
1105 cmd->data.setassparms.hdr.command_code = cmd_code;
1106 cmd->data.setassparms.hdr.return_code = 0;
1107 cmd->data.setassparms.hdr.seq_no = 0;
1108
1109 return iob;
1110}
1111
1112static int qeth_l3_send_setassparms(struct qeth_card *card,
1113 struct qeth_cmd_buffer *iob, __u16 len, long data,
1114 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1115 unsigned long),
1116 void *reply_param)
1117{
1118 int rc;
1119 struct qeth_ipa_cmd *cmd;
1120
847a50fd 1121 QETH_CARD_TEXT(card, 4, "sendassp");
4a71df50
FB		 1122
1123 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1124 if (len <= sizeof(__u32))
1125 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1126 else /* (len > sizeof(__u32)) */
1127 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1128
1129 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1130 return rc;
1131}
1132
1133#ifdef CONFIG_QETH_IPV6
1134static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1135 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1136{
1137 int rc;
1138 struct qeth_cmd_buffer *iob;
1139
847a50fd 1140 QETH_CARD_TEXT(card, 4, "simassp6");
4a71df50
FB		 1141 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1142 0, QETH_PROT_IPV6);
1143 rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1144 qeth_l3_default_setassparms_cb, NULL);
1145 return rc;
1146}
1147#endif
1148
1149static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1150 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1151{
1152 int rc;
1153 int length = 0;
1154 struct qeth_cmd_buffer *iob;
1155
847a50fd 1156 QETH_CARD_TEXT(card, 4, "simassp4");
4a71df50
FB		 1157 if (data)
1158 length = sizeof(__u32);
1159 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1160 length, QETH_PROT_IPV4);
1161 rc = qeth_l3_send_setassparms(card, iob, length, data,
1162 qeth_l3_default_setassparms_cb, NULL);
1163 return rc;
1164}
1165
1166static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1167{
1168 int rc;
1169
847a50fd 1170 QETH_CARD_TEXT(card, 3, "ipaarp");
4a71df50
FB		 1171
1172 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
74eacdb9
FB		 1173 dev_info(&card->gdev->dev,
1174 "ARP processing not supported on %s!\n",
1175 QETH_CARD_IFNAME(card));
4a71df50
FB		 1176 return 0;
1177 }
1178 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1179 IPA_CMD_ASS_START, 0);
1180 if (rc) {
74eacdb9
FB		 1181 dev_warn(&card->gdev->dev,
1182 "Starting ARP processing support for %s failed\n",
1183 QETH_CARD_IFNAME(card));
4a71df50
FB		 1184 }
1185 return rc;
1186}
1187
1188static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1189{
1190 int rc;
1191
847a50fd 1192 QETH_CARD_TEXT(card, 3, "ipaipfrg");
4a71df50
FB		 1193
1194 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
74eacdb9
FB		 1195 dev_info(&card->gdev->dev,
1196 "Hardware IP fragmentation not supported on %s\n",
1197 QETH_CARD_IFNAME(card));
4a71df50
FB		 1198 return -EOPNOTSUPP;
1199 }
1200
1201 rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1202 IPA_CMD_ASS_START, 0);
1203 if (rc) {
74eacdb9
FB		 1204 dev_warn(&card->gdev->dev,
1205 "Starting IP fragmentation support for %s failed\n",
1206 QETH_CARD_IFNAME(card));
4a71df50 1207 } else
74eacdb9
FB		 1208 dev_info(&card->gdev->dev,
1209 "Hardware IP fragmentation enabled \n");
4a71df50
FB		 1210 return rc;
1211}
1212
1213static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1214{
1215 int rc;
1216
847a50fd 1217 QETH_CARD_TEXT(card, 3, "stsrcmac");
4a71df50 1218
4a71df50 1219 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
74eacdb9 1220 dev_info(&card->gdev->dev,
fe94e2e0 1221 "Inbound source MAC-address not supported on %s\n",
74eacdb9 1222 QETH_CARD_IFNAME(card));
4a71df50
FB		 1223 return -EOPNOTSUPP;
1224 }
1225
1226 rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1227 IPA_CMD_ASS_START, 0);
1228 if (rc)
74eacdb9 1229 dev_warn(&card->gdev->dev,
fe94e2e0 1230 "Starting source MAC-address support for %s failed\n",
74eacdb9 1231 QETH_CARD_IFNAME(card));
4a71df50
FB		 1232 return rc;
1233}
1234
1235static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1236{
1237 int rc = 0;
1238
847a50fd 1239 QETH_CARD_TEXT(card, 3, "strtvlan");
4a71df50
FB		 1240
1241 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
74eacdb9
FB		 1242 dev_info(&card->gdev->dev,
1243 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1244 return -EOPNOTSUPP;
1245 }
1246
1247 rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1248 IPA_CMD_ASS_START, 0);
1249 if (rc) {
74eacdb9
FB		 1250 dev_warn(&card->gdev->dev,
1251 "Starting VLAN support for %s failed\n",
1252 QETH_CARD_IFNAME(card));
4a71df50 1253 } else {
74eacdb9 1254 dev_info(&card->gdev->dev, "VLAN enabled\n");
4a71df50
FB		 1255 }
1256 return rc;
1257}
1258
1259static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1260{
1261 int rc;
1262
847a50fd 1263 QETH_CARD_TEXT(card, 3, "stmcast");
4a71df50
FB		 1264
1265 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
74eacdb9
FB		 1266 dev_info(&card->gdev->dev,
1267 "Multicast not supported on %s\n",
1268 QETH_CARD_IFNAME(card));
4a71df50
FB		 1269 return -EOPNOTSUPP;
1270 }
1271
1272 rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1273 IPA_CMD_ASS_START, 0);
1274 if (rc) {
74eacdb9
FB		 1275 dev_warn(&card->gdev->dev,
1276 "Starting multicast support for %s failed\n",
1277 QETH_CARD_IFNAME(card));
4a71df50 1278 } else {
74eacdb9 1279 dev_info(&card->gdev->dev, "Multicast enabled\n");
4a71df50
FB		 1280 card->dev->flags |= IFF_MULTICAST;
1281 }
1282 return rc;
1283}
1284
4a71df50
FB		 1285#ifdef CONFIG_QETH_IPV6
1286static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1287{
1288 int rc;
1289
847a50fd 1290 QETH_CARD_TEXT(card, 3, "softipv6");
4a71df50
FB		 1291
1292 if (card->info.type == QETH_CARD_TYPE_IQD)
1293 goto out;
1294
1da74b1c 1295 rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
4a71df50 1296 if (rc) {
74eacdb9
FB		 1297 dev_err(&card->gdev->dev,
1298 "Activating IPv6 support for %s failed\n",
1299 QETH_CARD_IFNAME(card));
4a71df50
FB		 1300 return rc;
1301 }
1302 rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1303 IPA_CMD_ASS_START, 3);
1304 if (rc) {
74eacdb9
FB		 1305 dev_err(&card->gdev->dev,
1306 "Activating IPv6 support for %s failed\n",
1307 QETH_CARD_IFNAME(card));
4a71df50
FB		 1308 return rc;
1309 }
1310 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1311 IPA_CMD_ASS_START);
1312 if (rc) {
74eacdb9
FB		 1313 dev_err(&card->gdev->dev,
1314 "Activating IPv6 support for %s failed\n",
1315 QETH_CARD_IFNAME(card));
4a71df50
FB		 1316 return rc;
1317 }
1318 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1319 IPA_CMD_ASS_START);
1320 if (rc) {
74eacdb9
FB		 1321 dev_warn(&card->gdev->dev,
1322 "Enabling the passthrough mode for %s failed\n",
1323 QETH_CARD_IFNAME(card));
4a71df50
FB		 1324 return rc;
1325 }
1326out:
74eacdb9 1327 dev_info(&card->gdev->dev, "IPV6 enabled\n");
4a71df50
FB		 1328 return 0;
1329}
1330#endif
1331
1332static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1333{
1334 int rc = 0;
1335
847a50fd 1336 QETH_CARD_TEXT(card, 3, "strtipv6");
4a71df50
FB		 1337
1338 if (!qeth_is_supported(card, IPA_IPV6)) {
74eacdb9
FB		 1339 dev_info(&card->gdev->dev,
1340 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1341 return 0;
1342 }
1343#ifdef CONFIG_QETH_IPV6
1344 rc = qeth_l3_softsetup_ipv6(card);
1345#endif
1346 return rc ;
1347}
1348
1349static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1350{
1351 int rc;
1352
847a50fd 1353 QETH_CARD_TEXT(card, 3, "stbrdcst");
4a71df50
FB		 1354 card->info.broadcast_capable = 0;
1355 if (!qeth_is_supported(card, IPA_FILTERING)) {
74eacdb9
FB		 1356 dev_info(&card->gdev->dev,
1357 "Broadcast not supported on %s\n",
1358 QETH_CARD_IFNAME(card));
4a71df50
FB		 1359 rc = -EOPNOTSUPP;
1360 goto out;
1361 }
1362 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1363 IPA_CMD_ASS_START, 0);
1364 if (rc) {
74eacdb9
FB		 1365 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1366 "%s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1367 goto out;
1368 }
1369
1370 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1371 IPA_CMD_ASS_CONFIGURE, 1);
1372 if (rc) {
74eacdb9
FB		 1373 dev_warn(&card->gdev->dev,
1374 "Setting up broadcast filtering for %s failed\n",
1375 QETH_CARD_IFNAME(card));
4a71df50
FB		 1376 goto out;
1377 }
1378 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
74eacdb9 1379 dev_info(&card->gdev->dev, "Broadcast enabled\n");
4a71df50
FB		 1380 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1381 IPA_CMD_ASS_ENABLE, 1);
1382 if (rc) {
74eacdb9
FB		 1383 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1384 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1385 goto out;
1386 }
1387 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1388out:
1389 if (card->info.broadcast_capable)
1390 card->dev->flags |= IFF_BROADCAST;
1391 else
1392 card->dev->flags &= ~IFF_BROADCAST;
1393 return rc;
1394}
1395
1396static int qeth_l3_send_checksum_command(struct qeth_card *card)
1397{
1398 int rc;
1399
1400 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1401 IPA_CMD_ASS_START, 0);
1402 if (rc) {
74eacdb9
FB		 1403 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1404 "failed, using SW checksumming\n",
1405 QETH_CARD_IFNAME(card));
4a71df50
FB		 1406 return rc;
1407 }
1408 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1409 IPA_CMD_ASS_ENABLE,
1410 card->info.csum_mask);
1411 if (rc) {
74eacdb9
FB		 1412 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1413 "failed, using SW checksumming\n",
1414 QETH_CARD_IFNAME(card));
4a71df50
FB		 1415 return rc;
1416 }
1417 return 0;
1418}
1419
c4736d96 1420static int qeth_l3_set_rx_csum(struct qeth_card *card, int on)
3fd434d8
FB		 1421{
1422 int rc = 0;
1423
c5e631a8 1424 if (on) {
60a34277
FB		 1425 rc = qeth_l3_send_checksum_command(card);
1426 if (rc)
1427 return -EIO;
1428 dev_info(&card->gdev->dev,
1429 "HW Checksumming (inbound) enabled\n");
3fd434d8 1430 } else {
60a34277
FB		 1431 rc = qeth_l3_send_simple_setassparms(card,
1432 IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
1433 if (rc)
1434 return -EIO;
3fd434d8 1435 }
c5e631a8 1436
60a34277 1437 return 0;
3fd434d8
FB		 1438}
1439
4a71df50
FB		 1440static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1441{
847a50fd 1442 QETH_CARD_TEXT(card, 3, "strtcsum");
4a71df50 1443
c5e631a8 1444 if (card->dev->features & NETIF_F_RXCSUM) {
60a34277
FB		 1445 rtnl_lock();
1446 /* force set_features call */
1447 card->dev->features &= ~NETIF_F_RXCSUM;
1448 netdev_update_features(card->dev);
1449 rtnl_unlock();
1450 }
c5e631a8 1451 return 0;
4a71df50
FB		 1452}
1453
f6b85b6c
FB		 1454static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1455{
1456 int rc = 0;
1457
1458 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1459 return rc;
1460 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1461 IPA_CMD_ASS_START, 0);
1462 if (rc)
1463 goto err_out;
1464 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1465 IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
1466 if (rc)
1467 goto err_out;
1468 dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
1469 return rc;
1470err_out:
1471 dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
1472 "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
1473 return rc;
1474}
1475
4a71df50
FB		 1476static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1477{
1478 int rc;
1479
847a50fd 1480 QETH_CARD_TEXT(card, 3, "sttso");
4a71df50
FB		 1481
1482 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
74eacdb9
FB		 1483 dev_info(&card->gdev->dev,
1484 "Outbound TSO not supported on %s\n",
1485 QETH_CARD_IFNAME(card));
4a71df50
FB		 1486 rc = -EOPNOTSUPP;
1487 } else {
1488 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1489 IPA_CMD_ASS_START, 0);
1490 if (rc)
74eacdb9
FB		 1491 dev_warn(&card->gdev->dev, "Starting outbound TCP "
1492 "segmentation offload for %s failed\n",
1493 QETH_CARD_IFNAME(card));
4a71df50 1494 else
74eacdb9
FB		 1495 dev_info(&card->gdev->dev,
1496 "Outbound TSO enabled\n");
4a71df50 1497 }
6204b47e
MM		 1498 if (rc)
1499 card->dev->features &= ~NETIF_F_TSO;
4a71df50
FB		 1500 return rc;
1501}
1502
1503static int qeth_l3_start_ipassists(struct qeth_card *card)
1504{
847a50fd 1505 QETH_CARD_TEXT(card, 3, "strtipas");
d64ecc22
EL		 1506
1507 qeth_set_access_ctrl_online(card); /* go on*/
4a71df50
FB		 1508 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1509 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1510 qeth_l3_start_ipa_source_mac(card); /* go on*/
1511 qeth_l3_start_ipa_vlan(card); /* go on*/
1512 qeth_l3_start_ipa_multicast(card); /* go on*/
1513 qeth_l3_start_ipa_ipv6(card); /* go on*/
1514 qeth_l3_start_ipa_broadcast(card); /* go on*/
1515 qeth_l3_start_ipa_checksum(card); /* go on*/
f6b85b6c 1516 qeth_l3_start_ipa_tx_checksum(card);
4a71df50
FB		 1517 qeth_l3_start_ipa_tso(card); /* go on*/
1518 return 0;
1519}
1520
4a71df50
FB		 1521static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1522 struct qeth_reply *reply, unsigned long data)
1523{
1524 struct qeth_ipa_cmd *cmd;
1525
1526 cmd = (struct qeth_ipa_cmd *) data;
1527 if (cmd->hdr.return_code == 0)
1528 memcpy(card->dev->dev_addr,
1529 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1530 else
1531 random_ether_addr(card->dev->dev_addr);
1532
1533 return 0;
1534}
1535
1536static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1537{
1538 int rc = 0;
1539 struct qeth_cmd_buffer *iob;
1540 struct qeth_ipa_cmd *cmd;
1541
d11ba0c4 1542 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
4a71df50
FB		 1543
1544 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1545 QETH_PROT_IPV6);
1546 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1547 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1548 card->info.unique_id;
1549
1550 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1551 NULL);
1552 return rc;
1553}
1554
1555static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1556 struct qeth_reply *reply, unsigned long data)
1557{
1558 struct qeth_ipa_cmd *cmd;
1559
1560 cmd = (struct qeth_ipa_cmd *) data;
1561 if (cmd->hdr.return_code == 0)
1562 card->info.unique_id = *((__u16 *)
1563 &cmd->data.create_destroy_addr.unique_id[6]);
1564 else {
1565 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1566 UNIQUE_ID_NOT_BY_CARD;
74eacdb9
FB		 1567 dev_warn(&card->gdev->dev, "The network adapter failed to "
1568 "generate a unique ID\n");
4a71df50
FB		 1569 }
1570 return 0;
1571}
1572
1573static int qeth_l3_get_unique_id(struct qeth_card *card)
1574{
1575 int rc = 0;
1576 struct qeth_cmd_buffer *iob;
1577 struct qeth_ipa_cmd *cmd;
1578
d11ba0c4 1579 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
4a71df50
FB		 1580
1581 if (!qeth_is_supported(card, IPA_IPV6)) {
1582 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1583 UNIQUE_ID_NOT_BY_CARD;
1584 return 0;
1585 }
1586
1587 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1588 QETH_PROT_IPV6);
1589 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1590 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1591 card->info.unique_id;
1592
1593 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1594 return rc;
1595}
1596
76b11f8e
UB		 1597static int
1598qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1599 unsigned long data)
1600{
1601 struct qeth_ipa_cmd *cmd;
1602 __u16 rc;
1603
1604 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1605
1606 cmd = (struct qeth_ipa_cmd *)data;
1607 rc = cmd->hdr.return_code;
a959189a 1608 if (rc)
847a50fd 1609 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
76b11f8e
UB		 1610 switch (cmd->data.diagass.action) {
1611 case QETH_DIAGS_CMD_TRACE_QUERY:
1612 break;
1613 case QETH_DIAGS_CMD_TRACE_DISABLE:
a959189a
UB		 1614 switch (rc) {
1615 case 0:
1616 case IPA_RC_INVALID_SUBCMD:
1617 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1618 dev_info(&card->gdev->dev, "The HiperSockets network "
1619 "traffic analyzer is deactivated\n");
1620 break;
1621 default:
1622 break;
1623 }
76b11f8e
UB		 1624 break;
1625 case QETH_DIAGS_CMD_TRACE_ENABLE:
a959189a
UB		 1626 switch (rc) {
1627 case 0:
1628 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1629 dev_info(&card->gdev->dev, "The HiperSockets network "
1630 "traffic analyzer is activated\n");
1631 break;
1632 case IPA_RC_HARDWARE_AUTH_ERROR:
1633 dev_warn(&card->gdev->dev, "The device is not "
1634 "authorized to run as a HiperSockets network "
1635 "traffic analyzer\n");
1636 break;
1637 case IPA_RC_TRACE_ALREADY_ACTIVE:
1638 dev_warn(&card->gdev->dev, "A HiperSockets "
1639 "network traffic analyzer is already "
1640 "active in the HiperSockets LAN\n");
1641 break;
1642 default:
1643 break;
1644 }
76b11f8e
UB		 1645 break;
1646 default:
1647 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1648 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1649 }
1650
1651 return 0;
1652}
1653
1654static int
1655qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1656{
1657 struct qeth_cmd_buffer *iob;
1658 struct qeth_ipa_cmd *cmd;
1659
1660 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1661
1662 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1663 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1664 cmd->data.diagass.subcmd_len = 16;
1665 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1666 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1667 cmd->data.diagass.action = diags_cmd;
1668 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1669}
1670
4a71df50
FB		 1671static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1672 struct net_device *dev)
1673{
1674 if (dev->type == ARPHRD_IEEE802_TR)
1675 ip_tr_mc_map(ipm, mac);
1676 else
1677 ip_eth_mc_map(ipm, mac);
1678}
1679
1680static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1681{
1682 struct qeth_ipaddr *ipm;
1683 struct ip_mc_list *im4;
1684 char buf[MAX_ADDR_LEN];
1685
847a50fd 1686 QETH_CARD_TEXT(card, 4, "addmc");
f3aa3136
SS		 1687 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1688 im4 = rcu_dereference(im4->next_rcu)) {
4a71df50
FB		 1689 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1690 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1691 if (!ipm)
1692 continue;
1693 ipm->u.a4.addr = im4->multiaddr;
1694 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1695 ipm->is_multicast = 1;
1696 if (!qeth_l3_add_ip(card, ipm))
1697 kfree(ipm);
1698 }
1699}
1700
1701static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1702{
1703 struct in_device *in_dev;
7ff0bcf6 1704 u16 vid;
4a71df50 1705
847a50fd 1706 QETH_CARD_TEXT(card, 4, "addmcvl");
7ff0bcf6 1707 if (!qeth_is_supported(card, IPA_FULL_VLAN))
4a71df50
FB		 1708 return;
1709
7ff0bcf6
JP		 1710 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1711 struct net_device *netdev;
1712
1713 rcu_read_lock();
1714 netdev = __vlan_find_dev_deep(card->dev, vid);
1715 rcu_read_unlock();
4a71df50
FB		 1716 if (netdev == NULL ||
1717 !(netdev->flags & IFF_UP))
1718 continue;
1719 in_dev = in_dev_get(netdev);
1720 if (!in_dev)
1721 continue;
f3aa3136 1722 rcu_read_lock();
4a71df50 1723 qeth_l3_add_mc(card, in_dev);
f3aa3136 1724 rcu_read_unlock();
4a71df50
FB		 1725 in_dev_put(in_dev);
1726 }
1727}
1728
1729static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1730{
1731 struct in_device *in4_dev;
1732
847a50fd 1733 QETH_CARD_TEXT(card, 4, "chkmcv4");
4a71df50
FB		 1734 in4_dev = in_dev_get(card->dev);
1735 if (in4_dev == NULL)
1736 return;
f3aa3136 1737 rcu_read_lock();
4a71df50
FB		 1738 qeth_l3_add_mc(card, in4_dev);
1739 qeth_l3_add_vlan_mc(card);
f3aa3136 1740 rcu_read_unlock();
4a71df50
FB		 1741 in_dev_put(in4_dev);
1742}
1743
1744#ifdef CONFIG_QETH_IPV6
1745static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1746{
1747 struct qeth_ipaddr *ipm;
1748 struct ifmcaddr6 *im6;
1749 char buf[MAX_ADDR_LEN];
1750
847a50fd 1751 QETH_CARD_TEXT(card, 4, "addmc6");
4a71df50
FB		 1752 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1753 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1754 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1755 if (!ipm)
1756 continue;
1757 ipm->is_multicast = 1;
1758 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1759 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1760 sizeof(struct in6_addr));
1761 if (!qeth_l3_add_ip(card, ipm))
1762 kfree(ipm);
1763 }
1764}
1765
1766static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1767{
1768 struct inet6_dev *in_dev;
7ff0bcf6 1769 u16 vid;
4a71df50 1770
847a50fd 1771 QETH_CARD_TEXT(card, 4, "admc6vl");
7ff0bcf6 1772 if (!qeth_is_supported(card, IPA_FULL_VLAN))
4a71df50
FB		 1773 return;
1774
7ff0bcf6
JP		 1775 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1776 struct net_device *netdev;
1777
1778 netdev = __vlan_find_dev_deep(card->dev, vid);
4a71df50
FB		 1779 if (netdev == NULL ||
1780 !(netdev->flags & IFF_UP))
1781 continue;
1782 in_dev = in6_dev_get(netdev);
1783 if (!in_dev)
1784 continue;
1785 read_lock_bh(&in_dev->lock);
1786 qeth_l3_add_mc6(card, in_dev);
1787 read_unlock_bh(&in_dev->lock);
1788 in6_dev_put(in_dev);
1789 }
1790}
1791
1792static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1793{
1794 struct inet6_dev *in6_dev;
1795
847a50fd 1796 QETH_CARD_TEXT(card, 4, "chkmcv6");
4a71df50
FB		 1797 if (!qeth_is_supported(card, IPA_IPV6))
1798 return ;
1799 in6_dev = in6_dev_get(card->dev);
1800 if (in6_dev == NULL)
1801 return;
1802 read_lock_bh(&in6_dev->lock);
1803 qeth_l3_add_mc6(card, in6_dev);
1804 qeth_l3_add_vlan_mc6(card);
1805 read_unlock_bh(&in6_dev->lock);
1806 in6_dev_put(in6_dev);
1807}
1808#endif /* CONFIG_QETH_IPV6 */
1809
1810static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1811 unsigned short vid)
1812{
1813 struct in_device *in_dev;
1814 struct in_ifaddr *ifa;
1815 struct qeth_ipaddr *addr;
7ff0bcf6 1816 struct net_device *netdev;
4a71df50 1817
847a50fd 1818 QETH_CARD_TEXT(card, 4, "frvaddr4");
4a71df50 1819
7ff0bcf6
JP		 1820 netdev = __vlan_find_dev_deep(card->dev, vid);
1821 in_dev = in_dev_get(netdev);
4a71df50
FB		 1822 if (!in_dev)
1823 return;
1824 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1825 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1826 if (addr) {
1827 addr->u.a4.addr = ifa->ifa_address;
1828 addr->u.a4.mask = ifa->ifa_mask;
1829 addr->type = QETH_IP_TYPE_NORMAL;
1830 if (!qeth_l3_delete_ip(card, addr))
1831 kfree(addr);
1832 }
1833 }
1834 in_dev_put(in_dev);
1835}
1836
1837static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1838 unsigned short vid)
1839{
1840#ifdef CONFIG_QETH_IPV6
1841 struct inet6_dev *in6_dev;
1842 struct inet6_ifaddr *ifa;
1843 struct qeth_ipaddr *addr;
7ff0bcf6 1844 struct net_device *netdev;
4a71df50 1845
847a50fd 1846 QETH_CARD_TEXT(card, 4, "frvaddr6");
4a71df50 1847
7ff0bcf6
JP		 1848 netdev = __vlan_find_dev_deep(card->dev, vid);
1849 in6_dev = in6_dev_get(netdev);
4a71df50
FB		 1850 if (!in6_dev)
1851 return;
70f60a22 1852 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
4a71df50
FB		 1853 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1854 if (addr) {
1855 memcpy(&addr->u.a6.addr, &ifa->addr,
1856 sizeof(struct in6_addr));
1857 addr->u.a6.pfxlen = ifa->prefix_len;
1858 addr->type = QETH_IP_TYPE_NORMAL;
1859 if (!qeth_l3_delete_ip(card, addr))
1860 kfree(addr);
1861 }
1862 }
1863 in6_dev_put(in6_dev);
1864#endif /* CONFIG_QETH_IPV6 */
1865}
1866
1867static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1868 unsigned short vid)
1869{
4a71df50
FB		 1870 qeth_l3_free_vlan_addresses4(card, vid);
1871 qeth_l3_free_vlan_addresses6(card, vid);
1872}
1873
8e586137 1874static int qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
4a71df50 1875{
509e2562 1876 struct qeth_card *card = dev->ml_priv;
4a71df50 1877
7ff0bcf6 1878 set_bit(vid, card->active_vlans);
8e586137 1879 return 0;
4a71df50
FB		 1880}
1881
8e586137 1882static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
4a71df50 1883{
509e2562 1884 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 1885 unsigned long flags;
1886
847a50fd 1887 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
8e98ac48 1888 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 1889 QETH_CARD_TEXT(card, 3, "kidREC");
8e586137 1890 return 0;
8e98ac48 1891 }
4a71df50
FB		 1892 spin_lock_irqsave(&card->vlanlock, flags);
1893 /* unregister IP addresses of vlan device */
1894 qeth_l3_free_vlan_addresses(card, vid);
7ff0bcf6 1895 clear_bit(vid, card->active_vlans);
4a71df50
FB		 1896 spin_unlock_irqrestore(&card->vlanlock, flags);
1897 qeth_l3_set_multicast_list(card->dev);
8e586137 1898 return 0;
4a71df50
FB		 1899}
1900
10651db7
UB		 1901static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1902 struct sk_buff *skb, struct qeth_hdr *hdr,
1903 unsigned short *vlan_id)
4a71df50 1904{
4a71df50
FB		 1905 __be16 prot;
1906 struct iphdr *ip_hdr;
1907 unsigned char tg_addr[MAX_ADDR_LEN];
10651db7 1908 int is_vlan = 0;
4a71df50
FB		 1909
1910 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1911 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1912 ETH_P_IP);
1913 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1914 case QETH_CAST_MULTICAST:
1915 switch (prot) {
1916#ifdef CONFIG_QETH_IPV6
1917 case __constant_htons(ETH_P_IPV6):
1918 ndisc_mc_map((struct in6_addr *)
1919 skb->data + 24,
1920 tg_addr, card->dev, 0);
1921 break;
1922#endif
1923 case __constant_htons(ETH_P_IP):
1924 ip_hdr = (struct iphdr *)skb->data;
1925 (card->dev->type == ARPHRD_IEEE802_TR) ?
1926 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
1927 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1928 break;
1929 default:
1930 memcpy(tg_addr, card->dev->broadcast,
1931 card->dev->addr_len);
1932 }
1933 card->stats.multicast++;
1934 skb->pkt_type = PACKET_MULTICAST;
1935 break;
1936 case QETH_CAST_BROADCAST:
1937 memcpy(tg_addr, card->dev->broadcast,
1938 card->dev->addr_len);
1939 card->stats.multicast++;
1940 skb->pkt_type = PACKET_BROADCAST;
1941 break;
1942 case QETH_CAST_UNICAST:
1943 case QETH_CAST_ANYCAST:
1944 case QETH_CAST_NOCAST:
1945 default:
76b11f8e
UB		 1946 if (card->options.sniffer)
1947 skb->pkt_type = PACKET_OTHERHOST;
1948 else
1949 skb->pkt_type = PACKET_HOST;
4a71df50
FB		 1950 memcpy(tg_addr, card->dev->dev_addr,
1951 card->dev->addr_len);
1952 }
fe94e2e0
UB		 1953 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1954 card->dev->header_ops->create(skb, card->dev, prot,
1955 tg_addr, &hdr->hdr.l3.dest_addr[2],
1956 card->dev->addr_len);
1957 else
1958 card->dev->header_ops->create(skb, card->dev, prot,
1959 tg_addr, "FAKELL", card->dev->addr_len);
4a71df50
FB		 1960 }
1961
1962#ifdef CONFIG_TR
1963 if (card->dev->type == ARPHRD_IEEE802_TR)
1964 skb->protocol = tr_type_trans(skb, card->dev);
1965 else
1966#endif
1967 skb->protocol = eth_type_trans(skb, card->dev);
1968
1969 if (hdr->hdr.l3.ext_flags &
1970 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
10651db7 1971 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
4a71df50 1972 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
10651db7 1973 is_vlan = 1;
4a71df50
FB		 1974 }
1975
c5e631a8 1976 if (card->dev->features & NETIF_F_RXCSUM) {
4a71df50 1977 if ((hdr->hdr.l3.ext_flags &
b9139800
UB		 1978 (QETH_HDR_EXT_CSUM_HDR_REQ |
1979 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1980 (QETH_HDR_EXT_CSUM_HDR_REQ |
1981 QETH_HDR_EXT_CSUM_TRANSP_REQ))
4a71df50
FB		 1982 skb->ip_summed = CHECKSUM_UNNECESSARY;
1983 else
b9139800 1984 skb->ip_summed = CHECKSUM_NONE;
c5e631a8
FB		 1985 } else
1986 skb->ip_summed = CHECKSUM_NONE;
4a71df50 1987
10651db7 1988 return is_vlan;
4a71df50
FB		 1989}
1990
a1c3ed4c
FB		 1991static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1992 int budget, int *done)
4a71df50 1993{
a1c3ed4c 1994 int work_done = 0;
4a71df50
FB		 1995 struct sk_buff *skb;
1996 struct qeth_hdr *hdr;
4a71df50 1997 __u16 vlan_tag = 0;
10651db7 1998 int is_vlan;
4a71df50 1999 unsigned int len;
b3332930 2000 __u16 magic;
4a71df50 2001
a1c3ed4c
FB		 2002 *done = 0;
2003 BUG_ON(!budget);
2004 while (budget) {
2005 skb = qeth_core_get_next_skb(card,
b3332930 2006 &card->qdio.in_q->bufs[card->rx.b_index],
a1c3ed4c
FB		 2007 &card->rx.b_element, &card->rx.e_offset, &hdr);
2008 if (!skb) {
2009 *done = 1;
2010 break;
2011 }
2012 skb->dev = card->dev;
4a71df50
FB		 2013 switch (hdr->hdr.l3.id) {
2014 case QETH_HEADER_TYPE_LAYER3:
b3332930
FB		 2015 magic = *(__u16 *)skb->data;
2016 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
2017 (magic == ETH_P_AF_IUCV)) {
2018 skb->protocol = ETH_P_AF_IUCV;
2019 skb->pkt_type = PACKET_HOST;
2020 skb->mac_header = NET_SKB_PAD;
2021 skb->dev = card->dev;
2022 len = skb->len;
2023 card->dev->header_ops->create(skb, card->dev, 0,
2024 card->dev->dev_addr, "FAKELL",
2025 card->dev->addr_len);
2026 netif_receive_skb(skb);
2027 } else {
2028 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
10651db7 2029 &vlan_tag);
b3332930
FB		 2030 len = skb->len;
2031 if (is_vlan && !card->options.sniffer)
2032 __vlan_hwaccel_put_tag(skb, vlan_tag);
2033 napi_gro_receive(&card->napi, skb);
2034 }
4a71df50 2035 break;
76b11f8e
UB		 2036 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
2037 skb->pkt_type = PACKET_HOST;
2038 skb->protocol = eth_type_trans(skb, skb->dev);
76b11f8e
UB		 2039 len = skb->len;
2040 netif_receive_skb(skb);
2041 break;
4a71df50
FB		 2042 default:
2043 dev_kfree_skb_any(skb);
847a50fd 2044 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 2045 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 2046 continue;
2047 }
a1c3ed4c
FB		 2048 work_done++;
2049 budget--;
4a71df50
FB		 2050 card->stats.rx_packets++;
2051 card->stats.rx_bytes += len;
2052 }
a1c3ed4c
FB		 2053 return work_done;
2054}
2055
2056static int qeth_l3_poll(struct napi_struct *napi, int budget)
2057{
2058 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
2059 int work_done = 0;
2060 struct qeth_qdio_buffer *buffer;
2061 int done;
2062 int new_budget = budget;
2063
2064 if (card->options.performance_stats) {
2065 card->perf_stats.inbound_cnt++;
2066 card->perf_stats.inbound_start_time = qeth_get_micros();
2067 }
2068
2069 while (1) {
2070 if (!card->rx.b_count) {
2071 card->rx.qdio_err = 0;
2072 card->rx.b_count = qdio_get_next_buffers(
2073 card->data.ccwdev, 0, &card->rx.b_index,
2074 &card->rx.qdio_err);
2075 if (card->rx.b_count <= 0) {
2076 card->rx.b_count = 0;
2077 break;
2078 }
2079 card->rx.b_element =
2080 &card->qdio.in_q->bufs[card->rx.b_index]
2081 .buffer->element[0];
2082 card->rx.e_offset = 0;
2083 }
2084
2085 while (card->rx.b_count) {
2086 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
2087 if (!(card->rx.qdio_err &&
2088 qeth_check_qdio_errors(card, buffer->buffer,
2089 card->rx.qdio_err, "qinerr")))
2090 work_done += qeth_l3_process_inbound_buffer(
2091 card, new_budget, &done);
2092 else
2093 done = 1;
2094
2095 if (done) {
2096 if (card->options.performance_stats)
2097 card->perf_stats.bufs_rec++;
2098 qeth_put_buffer_pool_entry(card,
2099 buffer->pool_entry);
2100 qeth_queue_input_buffer(card, card->rx.b_index);
2101 card->rx.b_count--;
2102 if (card->rx.b_count) {
2103 card->rx.b_index =
2104 (card->rx.b_index + 1) %
2105 QDIO_MAX_BUFFERS_PER_Q;
2106 card->rx.b_element =
2107 &card->qdio.in_q
2108 ->bufs[card->rx.b_index]
2109 .buffer->element[0];
2110 card->rx.e_offset = 0;
2111 }
2112 }
2113
2114 if (work_done >= budget)
2115 goto out;
2116 else
2117 new_budget = budget - work_done;
2118 }
2119 }
2120
2121 napi_complete(napi);
2122 if (qdio_start_irq(card->data.ccwdev, 0))
2123 napi_schedule(&card->napi);
2124out:
2125 if (card->options.performance_stats)
2126 card->perf_stats.inbound_time += qeth_get_micros() -
2127 card->perf_stats.inbound_start_time;
2128 return work_done;
4a71df50
FB		 2129}
2130
2131static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2132 struct qeth_card *card)
2133{
2134 int rc = 0;
7ff0bcf6 2135 u16 vid;
4a71df50 2136
7ff0bcf6
JP		 2137 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
2138 struct net_device *netdev;
4a71df50 2139
7ff0bcf6
JP		 2140 rcu_read_lock();
2141 netdev = __vlan_find_dev_deep(dev, vid);
2142 rcu_read_unlock();
2143 if (netdev == dev) {
4a71df50
FB		 2144 rc = QETH_VLAN_CARD;
2145 break;
2146 }
2147 }
2148
509e2562 2149 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
4a71df50
FB		 2150 return 0;
2151
2152 return rc;
2153}
2154
2155static int qeth_l3_verify_dev(struct net_device *dev)
2156{
2157 struct qeth_card *card;
2158 unsigned long flags;
2159 int rc = 0;
2160
2161 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2162 list_for_each_entry(card, &qeth_core_card_list.list, list) {
2163 if (card->dev == dev) {
2164 rc = QETH_REAL_CARD;
2165 break;
2166 }
2167 rc = qeth_l3_verify_vlan_dev(dev, card);
2168 if (rc)
2169 break;
2170 }
2171 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2172
2173 return rc;
2174}
2175
2176static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2177{
2178 struct qeth_card *card = NULL;
2179 int rc;
2180
2181 rc = qeth_l3_verify_dev(dev);
2182 if (rc == QETH_REAL_CARD)
509e2562 2183 card = dev->ml_priv;
4a71df50 2184 else if (rc == QETH_VLAN_CARD)
509e2562 2185 card = vlan_dev_real_dev(dev)->ml_priv;
e5bd7be5 2186 if (card && card->options.layer2)
4a71df50 2187 card = NULL;
847a50fd
CO		 2188 if (card)
2189 QETH_CARD_TEXT_(card, 4, "%d", rc);
4a71df50
FB		 2190 return card ;
2191}
2192
2193static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2194{
2195 int rc = 0;
2196
d11ba0c4
PT		 2197 QETH_DBF_TEXT(SETUP, 2, "stopcard");
2198 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 2199
2200 qeth_set_allowed_threads(card, 0, 1);
76b11f8e
UB		 2201 if (card->options.sniffer &&
2202 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2203 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
4a71df50
FB		 2204 if (card->read.state == CH_STATE_UP &&
2205 card->write.state == CH_STATE_UP &&
2206 (card->state == CARD_STATE_UP)) {
2207 if (recovery_mode)
2208 qeth_l3_stop(card->dev);
8af7c5ae 2209 else {
869da90b
UB		 2210 rtnl_lock();
2211 dev_close(card->dev);
2212 rtnl_unlock();
8af7c5ae 2213 }
4a71df50
FB		 2214 card->state = CARD_STATE_SOFTSETUP;
2215 }
2216 if (card->state == CARD_STATE_SOFTSETUP) {
70919e23 2217 qeth_l3_clear_ip_list(card, 1);
4a71df50
FB		 2218 qeth_clear_ipacmd_list(card);
2219 card->state = CARD_STATE_HARDSETUP;
2220 }
2221 if (card->state == CARD_STATE_HARDSETUP) {
4a71df50
FB		 2222 qeth_qdio_clear_card(card, 0);
2223 qeth_clear_qdio_buffers(card);
2224 qeth_clear_working_pool_list(card);
2225 card->state = CARD_STATE_DOWN;
2226 }
2227 if (card->state == CARD_STATE_DOWN) {
2228 qeth_clear_cmd_buffers(&card->read);
2229 qeth_clear_cmd_buffers(&card->write);
2230 }
4a71df50
FB		 2231 return rc;
2232}
2233
76b11f8e
UB		 2234/*
2235 * test for and Switch promiscuous mode (on or off)
2236 * either for guestlan or HiperSocket Sniffer
2237 */
2238static void
2239qeth_l3_handle_promisc_mode(struct qeth_card *card)
2240{
2241 struct net_device *dev = card->dev;
2242
2243 if (((dev->flags & IFF_PROMISC) &&
2244 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2245 (!(dev->flags & IFF_PROMISC) &&
2246 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2247 return;
2248
2249 if (card->info.guestlan) { /* Guestlan trace */
2250 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2251 qeth_setadp_promisc_mode(card);
2252 } else if (card->options.sniffer && /* HiperSockets trace */
2253 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2254 if (dev->flags & IFF_PROMISC) {
847a50fd 2255 QETH_CARD_TEXT(card, 3, "+promisc");
76b11f8e
UB		 2256 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2257 } else {
847a50fd 2258 QETH_CARD_TEXT(card, 3, "-promisc");
76b11f8e
UB		 2259 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2260 }
2261 }
2262}
2263
4a71df50
FB		 2264static void qeth_l3_set_multicast_list(struct net_device *dev)
2265{
509e2562 2266 struct qeth_card *card = dev->ml_priv;
4a71df50 2267
847a50fd 2268 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 2269 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2270 (card->state != CARD_STATE_UP))
2271 return;
76b11f8e
UB		 2272 if (!card->options.sniffer) {
2273 qeth_l3_delete_mc_addresses(card);
2274 qeth_l3_add_multicast_ipv4(card);
4a71df50 2275#ifdef CONFIG_QETH_IPV6
76b11f8e 2276 qeth_l3_add_multicast_ipv6(card);
4a71df50 2277#endif
76b11f8e
UB		 2278 qeth_l3_set_ip_addr_list(card);
2279 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2280 return;
2281 }
2282 qeth_l3_handle_promisc_mode(card);
4a71df50
FB		 2283}
2284
2285static const char *qeth_l3_arp_get_error_cause(int *rc)
2286{
2287 switch (*rc) {
2288 case QETH_IPA_ARP_RC_FAILED:
2289 *rc = -EIO;
2290 return "operation failed";
2291 case QETH_IPA_ARP_RC_NOTSUPP:
2292 *rc = -EOPNOTSUPP;
2293 return "operation not supported";
2294 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2295 *rc = -EINVAL;
2296 return "argument out of range";
2297 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2298 *rc = -EOPNOTSUPP;
2299 return "query operation not supported";
2300 case QETH_IPA_ARP_RC_Q_NO_DATA:
2301 *rc = -ENOENT;
2302 return "no query data available";
2303 default:
2304 return "unknown error";
2305 }
2306}
2307
2308static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2309{
2310 int tmp;
2311 int rc;
2312
847a50fd 2313 QETH_CARD_TEXT(card, 3, "arpstnoe");
4a71df50
FB		 2314
2315 /*
2316 * currently GuestLAN only supports the ARP assist function
2317 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2318 * thus we say EOPNOTSUPP for this ARP function
2319 */
2320 if (card->info.guestlan)
2321 return -EOPNOTSUPP;
2322 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2323 return -EOPNOTSUPP;
2324 }
2325 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2326 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2327 no_entries);
2328 if (rc) {
2329 tmp = rc;
14cc21b6
FB		 2330 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2331 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2332 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2333 }
2334 return rc;
2335}
2336
d0ddf30f
EL		 2337static __u32 get_arp_entry_size(struct qeth_card *card,
2338 struct qeth_arp_query_data *qdata,
2339 struct qeth_arp_entrytype *type, __u8 strip_entries)
4a71df50 2340{
d0ddf30f
EL		 2341 __u32 rc;
2342 __u8 is_hsi;
4a71df50 2343
d0ddf30f
EL		 2344 is_hsi = qdata->reply_bits == 5;
2345 if (type->ip == QETHARP_IP_ADDR_V4) {
2346 QETH_CARD_TEXT(card, 4, "arpev4");
2347 if (strip_entries) {
2348 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2349 sizeof(struct qeth_arp_qi_entry7_short);
2350 } else {
2351 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2352 sizeof(struct qeth_arp_qi_entry7);
2353 }
2354 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2355 QETH_CARD_TEXT(card, 4, "arpev6");
2356 if (strip_entries) {
2357 rc = is_hsi ?
2358 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2359 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2360 } else {
2361 rc = is_hsi ?
2362 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2363 sizeof(struct qeth_arp_qi_entry7_ipv6);
2364 }
2365 } else {
2366 QETH_CARD_TEXT(card, 4, "arpinv");
2367 rc = 0;
4a71df50 2368 }
d0ddf30f
EL		 2369
2370 return rc;
2371}
2372
2373static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2374{
2375 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2376 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
4a71df50
FB		 2377}
2378
2379static int qeth_l3_arp_query_cb(struct qeth_card *card,
2380 struct qeth_reply *reply, unsigned long data)
2381{
2382 struct qeth_ipa_cmd *cmd;
2383 struct qeth_arp_query_data *qdata;
2384 struct qeth_arp_query_info *qinfo;
4a71df50 2385 int i;
d0ddf30f
EL		 2386 int e;
2387 int entrybytes_done;
2388 int stripped_bytes;
2389 __u8 do_strip_entries;
4a71df50 2390
d0ddf30f 2391 QETH_CARD_TEXT(card, 3, "arpquecb");
4a71df50
FB		 2392
2393 qinfo = (struct qeth_arp_query_info *) reply->param;
2394 cmd = (struct qeth_ipa_cmd *) data;
d0ddf30f 2395 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
4a71df50 2396 if (cmd->hdr.return_code) {
d0ddf30f
EL		 2397 QETH_CARD_TEXT(card, 4, "arpcberr");
2398 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2399 return 0;
2400 }
2401 if (cmd->data.setassparms.hdr.return_code) {
2402 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
d0ddf30f
EL		 2403 QETH_CARD_TEXT(card, 4, "setaperr");
2404 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2405 return 0;
2406 }
2407 qdata = &cmd->data.setassparms.data.query_arp;
847a50fd 2408 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
4a71df50 2409
d0ddf30f
EL		 2410 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2411 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2412 entrybytes_done = 0;
2413 for (e = 0; e < qdata->no_entries; ++e) {
2414 char *cur_entry;
2415 __u32 esize;
2416 struct qeth_arp_entrytype *etype;
2417
2418 cur_entry = &qdata->data + entrybytes_done;
2419 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2420 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2421 QETH_CARD_TEXT(card, 4, "pmis");
2422 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2423 break;
2424 }
2425 esize = get_arp_entry_size(card, qdata, etype,
2426 do_strip_entries);
2427 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2428 if (!esize)
2429 break;
2430
2431 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2432 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2433 cmd->hdr.return_code = -ENOMEM;
2434 goto out_error;
2435 }
4a71df50 2436
d0ddf30f
EL		 2437 memcpy(qinfo->udata + qinfo->udata_offset,
2438 &qdata->data + entrybytes_done + stripped_bytes,
2439 esize);
2440 entrybytes_done += esize + stripped_bytes;
2441 qinfo->udata_offset += esize;
2442 ++qinfo->no_entries;
2443 }
4a71df50
FB		 2444 /* check if all replies received ... */
2445 if (cmd->data.setassparms.hdr.seq_no <
2446 cmd->data.setassparms.hdr.number_of_replies)
2447 return 1;
d0ddf30f 2448 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
4a71df50
FB		 2449 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2450 /* keep STRIP_ENTRIES flag so the user program can distinguish
2451 * stripped entries from normal ones */
2452 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2453 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2454 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
d0ddf30f 2455 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
4a71df50
FB		 2456 return 0;
2457out_error:
2458 i = 0;
2459 memcpy(qinfo->udata, &i, 4);
2460 return 0;
2461}
2462
2463static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2464 struct qeth_cmd_buffer *iob, int len,
2465 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2466 unsigned long),
2467 void *reply_param)
2468{
847a50fd 2469 QETH_CARD_TEXT(card, 4, "sendarp");
4a71df50
FB		 2470
2471 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2472 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2473 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2474 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2475 reply_cb, reply_param);
2476}
2477
d0ddf30f
EL		 2478static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2479 enum qeth_prot_versions prot,
2480 struct qeth_arp_query_info *qinfo)
4a71df50
FB		 2481{
2482 struct qeth_cmd_buffer *iob;
d0ddf30f 2483 struct qeth_ipa_cmd *cmd;
4a71df50
FB		 2484 int tmp;
2485 int rc;
2486
d0ddf30f
EL		 2487 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2488
2489 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2490 IPA_CMD_ASS_ARP_QUERY_INFO,
2491 sizeof(struct qeth_arp_query_data) - sizeof(char),
2492 prot);
2493 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2494 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2495 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2496 cmd->data.setassparms.data.query_arp.no_entries = 0;
2497 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2498 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2499 qeth_l3_arp_query_cb, (void *)qinfo);
2500 if (rc) {
2501 tmp = rc;
2502 QETH_DBF_MESSAGE(2,
2503 "Error while querying ARP cache on %s: %s "
2504 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2505 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2506 }
2507
2508 return rc;
2509}
2510
2511static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2512{
2513 struct qeth_arp_query_info qinfo = {0, };
2514 int rc;
2515
847a50fd 2516 QETH_CARD_TEXT(card, 3, "arpquery");
4a71df50
FB		 2517
2518 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2519 IPA_ARP_PROCESSING)) {
d0ddf30f
EL		 2520 QETH_CARD_TEXT(card, 3, "arpqnsup");
2521 rc = -EOPNOTSUPP;
2522 goto out;
4a71df50
FB		 2523 }
2524 /* get size of userspace buffer and mask_bits -> 6 bytes */
d0ddf30f
EL		 2525 if (copy_from_user(&qinfo, udata, 6)) {
2526 rc = -EFAULT;
2527 goto out;
2528 }
4a71df50 2529 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
d0ddf30f
EL		 2530 if (!qinfo.udata) {
2531 rc = -ENOMEM;
2532 goto out;
2533 }
4a71df50 2534 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
d0ddf30f 2535 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
4a71df50 2536 if (rc) {
4a71df50
FB		 2537 if (copy_to_user(udata, qinfo.udata, 4))
2538 rc = -EFAULT;
d0ddf30f 2539 goto free_and_out;
4a71df50 2540 } else {
d0ddf30f
EL		 2541#ifdef CONFIG_QETH_IPV6
2542 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2543 /* fails in case of GuestLAN QDIO mode */
2544 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2545 &qinfo);
2546 }
2547#endif
2548 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2549 QETH_CARD_TEXT(card, 4, "qactf");
4a71df50 2550 rc = -EFAULT;
d0ddf30f
EL		 2551 goto free_and_out;
2552 }
2553 QETH_CARD_TEXT_(card, 4, "qacts");
4a71df50 2554 }
d0ddf30f 2555free_and_out:
4a71df50 2556 kfree(qinfo.udata);
d0ddf30f 2557out:
4a71df50
FB		 2558 return rc;
2559}
2560
2561static int qeth_l3_arp_add_entry(struct qeth_card *card,
2562 struct qeth_arp_cache_entry *entry)
2563{
2564 struct qeth_cmd_buffer *iob;
2565 char buf[16];
2566 int tmp;
2567 int rc;
2568
847a50fd 2569 QETH_CARD_TEXT(card, 3, "arpadent");
4a71df50
FB		 2570
2571 /*
2572 * currently GuestLAN only supports the ARP assist function
2573 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2574 * thus we say EOPNOTSUPP for this ARP function
2575 */
2576 if (card->info.guestlan)
2577 return -EOPNOTSUPP;
2578 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2579 return -EOPNOTSUPP;
2580 }
2581
2582 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2583 IPA_CMD_ASS_ARP_ADD_ENTRY,
2584 sizeof(struct qeth_arp_cache_entry),
2585 QETH_PROT_IPV4);
2586 rc = qeth_l3_send_setassparms(card, iob,
2587 sizeof(struct qeth_arp_cache_entry),
2588 (unsigned long) entry,
2589 qeth_l3_default_setassparms_cb, NULL);
2590 if (rc) {
2591 tmp = rc;
2592 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2593 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2594 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2595 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2596 }
2597 return rc;
2598}
2599
2600static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2601 struct qeth_arp_cache_entry *entry)
2602{
2603 struct qeth_cmd_buffer *iob;
2604 char buf[16] = {0, };
2605 int tmp;
2606 int rc;
2607
847a50fd 2608 QETH_CARD_TEXT(card, 3, "arprment");
4a71df50
FB		 2609
2610 /*
2611 * currently GuestLAN only supports the ARP assist function
2612 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2613 * thus we say EOPNOTSUPP for this ARP function
2614 */
2615 if (card->info.guestlan)
2616 return -EOPNOTSUPP;
2617 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2618 return -EOPNOTSUPP;
2619 }
2620 memcpy(buf, entry, 12);
2621 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2622 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2623 12,
2624 QETH_PROT_IPV4);
2625 rc = qeth_l3_send_setassparms(card, iob,
2626 12, (unsigned long)buf,
2627 qeth_l3_default_setassparms_cb, NULL);
2628 if (rc) {
2629 tmp = rc;
2630 memset(buf, 0, 16);
2631 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2632 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2633 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2634 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2635 }
2636 return rc;
2637}
2638
2639static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2640{
2641 int rc;
2642 int tmp;
2643
847a50fd 2644 QETH_CARD_TEXT(card, 3, "arpflush");
4a71df50
FB		 2645
2646 /*
2647 * currently GuestLAN only supports the ARP assist function
2648 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2649 * thus we say EOPNOTSUPP for this ARP function
2650 */
2651 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2652 return -EOPNOTSUPP;
2653 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2654 return -EOPNOTSUPP;
2655 }
2656 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2657 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2658 if (rc) {
2659 tmp = rc;
14cc21b6
FB		 2660 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2661 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2662 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2663 }
2664 return rc;
2665}
2666
2667static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2668{
509e2562 2669 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2670 struct qeth_arp_cache_entry arp_entry;
2671 struct mii_ioctl_data *mii_data;
2672 int rc = 0;
2673
2674 if (!card)
2675 return -ENODEV;
2676
2677 if ((card->state != CARD_STATE_UP) &&
2678 (card->state != CARD_STATE_SOFTSETUP))
2679 return -ENODEV;
2680
2681 switch (cmd) {
2682 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2683 if (!capable(CAP_NET_ADMIN)) {
2684 rc = -EPERM;
2685 break;
2686 }
2687 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2688 break;
2689 case SIOC_QETH_ARP_QUERY_INFO:
2690 if (!capable(CAP_NET_ADMIN)) {
2691 rc = -EPERM;
2692 break;
2693 }
2694 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2695 break;
2696 case SIOC_QETH_ARP_ADD_ENTRY:
2697 if (!capable(CAP_NET_ADMIN)) {
2698 rc = -EPERM;
2699 break;
2700 }
2701 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2702 sizeof(struct qeth_arp_cache_entry)))
2703 rc = -EFAULT;
2704 else
2705 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2706 break;
2707 case SIOC_QETH_ARP_REMOVE_ENTRY:
2708 if (!capable(CAP_NET_ADMIN)) {
2709 rc = -EPERM;
2710 break;
2711 }
2712 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2713 sizeof(struct qeth_arp_cache_entry)))
2714 rc = -EFAULT;
2715 else
2716 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2717 break;
2718 case SIOC_QETH_ARP_FLUSH_CACHE:
2719 if (!capable(CAP_NET_ADMIN)) {
2720 rc = -EPERM;
2721 break;
2722 }
2723 rc = qeth_l3_arp_flush_cache(card);
2724 break;
2725 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2726 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2727 break;
2728 case SIOC_QETH_GET_CARD_TYPE:
5113fec0
UB		 2729 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2730 card->info.type == QETH_CARD_TYPE_OSX) &&
4a71df50
FB		 2731 !card->info.guestlan)
2732 return 1;
2733 return 0;
2734 break;
2735 case SIOCGMIIPHY:
2736 mii_data = if_mii(rq);
2737 mii_data->phy_id = 0;
2738 break;
2739 case SIOCGMIIREG:
2740 mii_data = if_mii(rq);
2741 if (mii_data->phy_id != 0)
2742 rc = -EINVAL;
2743 else
2744 mii_data->val_out = qeth_mdio_read(dev,
2745 mii_data->phy_id,
2746 mii_data->reg_num);
2747 break;
2748 default:
2749 rc = -EOPNOTSUPP;
2750 }
2751 if (rc)
847a50fd 2752 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
4a71df50
FB		 2753 return rc;
2754}
2755
ce73e10e
KDW		 2756int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2757{
2758 int cast_type = RTN_UNSPEC;
69cce1d1
DM		 2759 struct neighbour *n = NULL;
2760 struct dst_entry *dst;
2761
1d36cb47 2762 rcu_read_lock();
69cce1d1
DM		 2763 dst = skb_dst(skb);
2764 if (dst)
27217455 2765 n = dst_get_neighbour_noref(dst);
69cce1d1
DM		 2766 if (n) {
2767 cast_type = n->type;
1d36cb47 2768 rcu_read_unlock();
ce73e10e
KDW		 2769 if ((cast_type == RTN_BROADCAST) ||
2770 (cast_type == RTN_MULTICAST) ||
2771 (cast_type == RTN_ANYCAST))
2772 return cast_type;
2773 else
2774 return RTN_UNSPEC;
2775 }
1d36cb47
FB		 2776 rcu_read_unlock();
2777
ce73e10e
KDW		 2778 /* try something else */
2779 if (skb->protocol == ETH_P_IPV6)
2780 return (skb_network_header(skb)[24] == 0xff) ?
2781 RTN_MULTICAST : 0;
2782 else if (skb->protocol == ETH_P_IP)
2783 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2784 RTN_MULTICAST : 0;
2785 /* ... */
2786 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2787 return RTN_BROADCAST;
2788 else {
2789 u16 hdr_mac;
2790
2791 hdr_mac = *((u16 *)skb->data);
2792 /* tr multicast? */
2793 switch (card->info.link_type) {
2794 case QETH_LINK_TYPE_HSTR:
2795 case QETH_LINK_TYPE_LANE_TR:
2796 if ((hdr_mac == QETH_TR_MAC_NC) ||
2797 (hdr_mac == QETH_TR_MAC_C))
2798 return RTN_MULTICAST;
2799 break;
2800 /* eth or so multicast? */
2801 default:
2802 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2803 (hdr_mac == QETH_ETH_MAC_V6))
2804 return RTN_MULTICAST;
2805 }
2806 }
2807 return cast_type;
2808}
2809
b3332930
FB		 2810static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
2811 struct qeth_hdr *hdr, struct sk_buff *skb)
2812{
2813 char daddr[16];
2814 struct af_iucv_trans_hdr *iucv_hdr;
2815
2816 skb_pull(skb, 14);
2817 card->dev->header_ops->create(skb, card->dev, 0,
2818 card->dev->dev_addr, card->dev->dev_addr,
2819 card->dev->addr_len);
2820 skb_pull(skb, 14);
2821 iucv_hdr = (struct af_iucv_trans_hdr *)skb->data;
2822 memset(hdr, 0, sizeof(struct qeth_hdr));
2823 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2824 hdr->hdr.l3.ext_flags = 0;
2825 hdr->hdr.l3.length = skb->len;
2826 hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
2827 memset(daddr, 0, sizeof(daddr));
2828 daddr[0] = 0xfe;
2829 daddr[1] = 0x80;
2830 memcpy(&daddr[8], iucv_hdr->destUserID, 8);
2831 memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
2832}
2833
4a71df50
FB		 2834static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2835 struct sk_buff *skb, int ipv, int cast_type)
2836{
69cce1d1
DM		 2837 struct dst_entry *dst;
2838
4a71df50
FB		 2839 memset(hdr, 0, sizeof(struct qeth_hdr));
2840 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2841 hdr->hdr.l3.ext_flags = 0;
2842
2843 /*
2844 * before we're going to overwrite this location with next hop ip.
2845 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2846 */
7ff0bcf6 2847 if (vlan_tx_tag_present(skb)) {
213298f8
FB		 2848 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2849 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2850 else
2851 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4a71df50
FB		 2852 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2853 }
2854
2855 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
1d36cb47
FB		 2856
2857 rcu_read_lock();
69cce1d1 2858 dst = skb_dst(skb);
4a71df50 2859 if (ipv == 4) {
87e7597b
DM		 2860 struct rtable *rt = (struct rtable *) dst;
2861 __be32 *pkey = &ip_hdr(skb)->daddr;
2862
2863 if (rt->rt_gateway)
2864 pkey = &rt->rt_gateway;
2865
4a71df50
FB		 2866 /* IPv4 */
2867 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2868 memset(hdr->hdr.l3.dest_addr, 0, 12);
87e7597b 2869 *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
4a71df50 2870 } else if (ipv == 6) {
87e7597b
DM		 2871 struct rt6_info *rt = (struct rt6_info *) dst;
2872 struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
2873
2874 if (!ipv6_addr_any(&rt->rt6i_gateway))
2875 pkey = &rt->rt6i_gateway;
2876
4a71df50
FB		 2877 /* IPv6 */
2878 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2879 if (card->info.type == QETH_CARD_TYPE_IQD)
2880 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
87e7597b 2881 memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
4a71df50
FB		 2882 } else {
2883 /* passthrough */
2884 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2885 !memcmp(skb->data + sizeof(struct qeth_hdr) +
2886 sizeof(__u16), skb->dev->broadcast, 6)) {
2887 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2888 QETH_HDR_PASSTHRU;
2889 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2890 skb->dev->broadcast, 6)) {
2891 /* broadcast? */
2892 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2893 QETH_HDR_PASSTHRU;
2894 } else {
2895 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2896 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2897 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2898 }
2899 }
1d36cb47 2900 rcu_read_unlock();
4a71df50
FB		 2901}
2902
f6b85b6c
FB		 2903static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2904 struct qeth_hdr *hdr, struct sk_buff *skb)
2905{
2906 struct iphdr *iph = ip_hdr(skb);
2907
2908 /* tcph->check contains already the pseudo hdr checksum
2909 * so just set the header flags
2910 */
2911 if (iph->protocol == IPPROTO_UDP)
2912 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
16c0f936
FB		 2913 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2914 QETH_HDR_EXT_CSUM_HDR_REQ;
2915 iph->check = 0;
f6b85b6c
FB		 2916 if (card->options.performance_stats)
2917 card->perf_stats.tx_csum++;
2918}
2919
64ef8957
FB		 2920static void qeth_tso_fill_header(struct qeth_card *card,
2921 struct qeth_hdr *qhdr, struct sk_buff *skb)
2922{
2923 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2924 struct tcphdr *tcph = tcp_hdr(skb);
2925 struct iphdr *iph = ip_hdr(skb);
2926 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2927
2928 /*fix header to TSO values ...*/
2929 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
8fa9208e 2930 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
64ef8957
FB		 2931 /*set values which are fix for the first approach ...*/
2932 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2933 hdr->ext.imb_hdr_no = 1;
2934 hdr->ext.hdr_type = 1;
2935 hdr->ext.hdr_version = 1;
2936 hdr->ext.hdr_len = 28;
2937 /*insert non-fix values */
2938 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2939 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2940 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2941 sizeof(struct qeth_hdr_tso));
2942 tcph->check = 0;
2943 if (skb->protocol == ETH_P_IPV6) {
2944 ip6h->payload_len = 0;
2945 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2946 0, IPPROTO_TCP, 0);
2947 } else {
2948 /*OSA want us to set these values ...*/
2949 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2950 0, IPPROTO_TCP, 0);
2951 iph->tot_len = 0;
2952 iph->check = 0;
2953 }
2954}
2955
c3b4a740
FB		 2956static inline int qeth_l3_tso_elements(struct sk_buff *skb)
2957{
2958 unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
2959 tcp_hdr(skb)->doff * 4;
2960 int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
51aa165c 2961 int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
c3b4a740
FB		 2962 elements += skb_shinfo(skb)->nr_frags;
2963 return elements;
2964}
2965
4a71df50
FB		 2966static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2967{
2968 int rc;
2969 u16 *tag;
2970 struct qeth_hdr *hdr = NULL;
2971 int elements_needed = 0;
64ef8957 2972 int elems;
509e2562 2973 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2974 struct sk_buff *new_skb = NULL;
2975 int ipv = qeth_get_ip_version(skb);
ce73e10e 2976 int cast_type = qeth_l3_get_cast_type(card, skb);
4a71df50
FB		 2977 struct qeth_qdio_out_q *queue = card->qdio.out_qs
2978 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
2979 int tx_bytes = skb->len;
6204b47e 2980 bool large_send;
683d718a 2981 int data_offset = -1;
64ef8957 2982 int nr_frags;
4a71df50 2983
b3332930
FB		 2984 if (((card->info.type == QETH_CARD_TYPE_IQD) &&
2985 (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
2986 ((card->options.cq == QETH_CQ_ENABLED) &&
2987 (skb->protocol != ETH_P_AF_IUCV)))) ||
2988 card->options.sniffer)
4a71df50
FB		 2989 goto tx_drop;
2990
2991 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2992 card->stats.tx_carrier_errors++;
2993 goto tx_drop;
2994 }
2995
2996 if ((cast_type == RTN_BROADCAST) &&
2997 (card->info.broadcast_capable == 0))
2998 goto tx_drop;
2999
3000 if (card->options.performance_stats) {
3001 card->perf_stats.outbound_cnt++;
3002 card->perf_stats.outbound_start_time = qeth_get_micros();
3003 }
3004
6204b47e 3005 large_send = skb_is_gso(skb);
683d718a
FB		 3006
3007 if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
3008 (skb_shinfo(skb)->nr_frags == 0)) {
3009 new_skb = skb;
b3332930
FB		 3010 if (new_skb->protocol == ETH_P_AF_IUCV)
3011 data_offset = 0;
3012 else
3013 data_offset = ETH_HLEN;
683d718a
FB		 3014 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
3015 if (!hdr)
3016 goto tx_drop;
3017 elements_needed++;
3018 } else {
3019 /* create a clone with writeable headroom */
3020 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
3021 + VLAN_HLEN);
3022 if (!new_skb)
3023 goto tx_drop;
3024 }
4a71df50
FB		 3025
3026 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 3027 if (data_offset < 0)
3028 skb_pull(new_skb, ETH_HLEN);
4a71df50 3029 } else {
21fde749 3030 if (ipv == 4) {
4a71df50
FB		 3031 if (card->dev->type == ARPHRD_IEEE802_TR)
3032 skb_pull(new_skb, TR_HLEN);
3033 else
3034 skb_pull(new_skb, ETH_HLEN);
3035 }
3036
7ff0bcf6 3037 if (ipv != 4 && vlan_tx_tag_present(new_skb)) {
4a71df50
FB		 3038 skb_push(new_skb, VLAN_HLEN);
3039 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
3040 skb_copy_to_linear_data_offset(new_skb, 4,
3041 new_skb->data + 8, 4);
3042 skb_copy_to_linear_data_offset(new_skb, 8,
3043 new_skb->data + 12, 4);
3044 tag = (u16 *)(new_skb->data + 12);
3045 *tag = __constant_htons(ETH_P_8021Q);
3046 *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
4a71df50
FB		 3047 }
3048 }
3049
3050 netif_stop_queue(dev);
3051
4a71df50 3052 /* fix hardware limitation: as long as we do not have sbal
64ef8957 3053 * chaining we can not send long frag lists
4a71df50 3054 */
6204b47e 3055 if (large_send) {
c3b4a740
FB		 3056 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
3057 if (skb_linearize(new_skb))
3058 goto tx_drop;
3059 if (card->options.performance_stats)
3060 card->perf_stats.tx_lin++;
3061 }
64ef8957 3062 }
4a71df50 3063
6204b47e 3064 if (large_send && (cast_type == RTN_UNSPEC)) {
4a71df50
FB		 3065 hdr = (struct qeth_hdr *)skb_push(new_skb,
3066 sizeof(struct qeth_hdr_tso));
3067 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
3068 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
3069 qeth_tso_fill_header(card, hdr, new_skb);
3070 elements_needed++;
3071 } else {
683d718a
FB		 3072 if (data_offset < 0) {
3073 hdr = (struct qeth_hdr *)skb_push(new_skb,
4a71df50 3074 sizeof(struct qeth_hdr));
683d718a
FB		 3075 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3076 cast_type);
3077 } else {
b3332930
FB		 3078 if (new_skb->protocol == ETH_P_AF_IUCV)
3079 qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
3080 else {
3081 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3082 cast_type);
3083 hdr->hdr.l3.length = new_skb->len - data_offset;
3084 }
683d718a 3085 }
f6b85b6c
FB		 3086
3087 if (skb->ip_summed == CHECKSUM_PARTIAL)
3088 qeth_l3_hdr_csum(card, hdr, new_skb);
4a71df50
FB		 3089 }
3090
64ef8957 3091 elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
4a71df50 3092 elements_needed);
64ef8957
FB		 3093 if (!elems) {
3094 if (data_offset >= 0)
3095 kmem_cache_free(qeth_core_header_cache, hdr);
3096 goto tx_drop;
f61a0d05 3097 }
64ef8957
FB		 3098 elements_needed += elems;
3099 nr_frags = skb_shinfo(new_skb)->nr_frags;
4a71df50 3100
51aa165c
FB		 3101 if (card->info.type != QETH_CARD_TYPE_IQD) {
3102 int len;
6204b47e 3103 if (large_send)
51aa165c
FB		 3104 len = ((unsigned long)tcp_hdr(new_skb) +
3105 tcp_hdr(new_skb)->doff * 4) -
3106 (unsigned long)new_skb->data;
3107 else
3108 len = sizeof(struct qeth_hdr_layer3);
3109
3110 if (qeth_hdr_chk_and_bounce(new_skb, len))
3111 goto tx_drop;
4a71df50 3112 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 3113 elements_needed);
51aa165c 3114 } else
4a71df50 3115 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 3116 elements_needed, data_offset, 0);
4a71df50
FB		 3117
3118 if (!rc) {
3119 card->stats.tx_packets++;
3120 card->stats.tx_bytes += tx_bytes;
3121 if (new_skb != skb)
3122 dev_kfree_skb_any(skb);
3123 if (card->options.performance_stats) {
6204b47e 3124 if (large_send) {
4a71df50
FB		 3125 card->perf_stats.large_send_bytes += tx_bytes;
3126 card->perf_stats.large_send_cnt++;
3127 }
64ef8957 3128 if (nr_frags) {
4a71df50
FB		 3129 card->perf_stats.sg_skbs_sent++;
3130 /* nr_frags + skb->data */
64ef8957 3131 card->perf_stats.sg_frags_sent += nr_frags + 1;
4a71df50
FB		 3132 }
3133 }
ec634fe3 3134 rc = NETDEV_TX_OK;
4a71df50 3135 } else {
683d718a
FB		 3136 if (data_offset >= 0)
3137 kmem_cache_free(qeth_core_header_cache, hdr);
3138
4a71df50
FB		 3139 if (rc == -EBUSY) {
3140 if (new_skb != skb)
3141 dev_kfree_skb_any(new_skb);
3142 return NETDEV_TX_BUSY;
3143 } else
3144 goto tx_drop;
3145 }
3146
3147 netif_wake_queue(dev);
3148 if (card->options.performance_stats)
3149 card->perf_stats.outbound_time += qeth_get_micros() -
3150 card->perf_stats.outbound_start_time;
3151 return rc;
3152
3153tx_drop:
3154 card->stats.tx_dropped++;
3155 card->stats.tx_errors++;
3156 if ((new_skb != skb) && new_skb)
3157 dev_kfree_skb_any(new_skb);
3158 dev_kfree_skb_any(skb);
d0ec0f54 3159 netif_wake_queue(dev);
4a71df50
FB		 3160 return NETDEV_TX_OK;
3161}
3162
39423440 3163static int __qeth_l3_open(struct net_device *dev)
4a71df50 3164{
509e2562 3165 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 3166 int rc = 0;
4a71df50 3167
847a50fd 3168 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 3169 if (card->state == CARD_STATE_UP)
3170 return rc;
4a71df50
FB		 3171 if (card->state != CARD_STATE_SOFTSETUP)
3172 return -ENODEV;
3173 card->data.state = CH_STATE_UP;
3174 card->state = CARD_STATE_UP;
4a71df50
FB		 3175 netif_start_queue(dev);
3176
a1c3ed4c
FB		 3177 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3178 napi_enable(&card->napi);
3179 napi_schedule(&card->napi);
3180 } else
3181 rc = -EIO;
3182 return rc;
4a71df50
FB		 3183}
3184
39423440
UB		 3185static int qeth_l3_open(struct net_device *dev)
3186{
3187 struct qeth_card *card = dev->ml_priv;
3188
3189 QETH_CARD_TEXT(card, 5, "qethope_");
3190 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
3191 QETH_CARD_TEXT(card, 3, "openREC");
3192 return -ERESTARTSYS;
3193 }
3194 return __qeth_l3_open(dev);
3195}
3196
4a71df50
FB		 3197static int qeth_l3_stop(struct net_device *dev)
3198{
509e2562 3199 struct qeth_card *card = dev->ml_priv;
4a71df50 3200
847a50fd 3201 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 3202 netif_tx_disable(dev);
a1c3ed4c 3203 if (card->state == CARD_STATE_UP) {
4a71df50 3204 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 3205 napi_disable(&card->napi);
3206 }
4a71df50
FB		 3207 return 0;
3208}
3209
c8f44aff
MM		 3210static netdev_features_t qeth_l3_fix_features(struct net_device *dev,
3211 netdev_features_t features)
4a71df50 3212{
509e2562 3213 struct qeth_card *card = dev->ml_priv;
4a71df50 3214
6204b47e
MM		 3215 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3216 features &= ~NETIF_F_IP_CSUM;
3217 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
3218 features &= ~NETIF_F_TSO;
3219 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
3220 features &= ~NETIF_F_RXCSUM;
3221
3222 return features;
4a71df50
FB		 3223}
3224
c8f44aff
MM		 3225static int qeth_l3_set_features(struct net_device *dev,
3226 netdev_features_t features)
4a71df50 3227{
6204b47e
MM		 3228 struct qeth_card *card = dev->ml_priv;
3229 u32 changed = dev->features ^ features;
60a34277 3230 int err;
4a71df50 3231
6204b47e
MM		 3232 if (!(changed & NETIF_F_RXCSUM))
3233 return 0;
3234
60a34277
FB		 3235 if (card->state == CARD_STATE_DOWN ||
3236 card->state == CARD_STATE_RECOVER)
3237 return 0;
3238
3239 err = qeth_l3_set_rx_csum(card, features & NETIF_F_RXCSUM);
3240 if (err)
3241 dev->features = features ^ NETIF_F_RXCSUM;
4a71df50 3242
60a34277 3243 return err;
4a71df50
FB		 3244}
3245
0fc0b732 3246static const struct ethtool_ops qeth_l3_ethtool_ops = {
4a71df50 3247 .get_link = ethtool_op_get_link,
4a71df50
FB		 3248 .get_strings = qeth_core_get_strings,
3249 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 3250 .get_sset_count = qeth_core_get_sset_count,
4a71df50 3251 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 3252 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 3253};
3254
3255/*
3256 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3257 * NOARP on the netdevice is no option because it also turns off neighbor
3258 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3259 * arp resolution but we want the hard header (packet socket will work
3260 * e.g. tcpdump)
3261 */
3262static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3263{
3264 n->nud_state = NUD_NOARP;
3265 memcpy(n->ha, "FAKELL", 6);
3266 n->output = n->ops->connected_output;
3267 return 0;
3268}
3269
3270static int
3271qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3272{
3273 if (np->tbl->family == AF_INET)
3274 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3275
3276 return 0;
3277}
3278
3d58cefd 3279static const struct net_device_ops qeth_l3_netdev_ops = {
8403b13c
FB		 3280 .ndo_open = qeth_l3_open,
3281 .ndo_stop = qeth_l3_stop,
3282 .ndo_get_stats = qeth_get_stats,
3283 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3284 .ndo_validate_addr = eth_validate_addr,
afc4b13d 3285 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
7ff0bcf6
JP		 3286 .ndo_do_ioctl = qeth_l3_do_ioctl,
3287 .ndo_change_mtu = qeth_change_mtu,
3288 .ndo_fix_features = qeth_l3_fix_features,
3289 .ndo_set_features = qeth_l3_set_features,
8403b13c
FB		 3290 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3291 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
7ff0bcf6 3292 .ndo_tx_timeout = qeth_tx_timeout,
8403b13c
FB		 3293};
3294
3d58cefd
FB		 3295static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3296 .ndo_open = qeth_l3_open,
3297 .ndo_stop = qeth_l3_stop,
3298 .ndo_get_stats = qeth_get_stats,
3299 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3300 .ndo_validate_addr = eth_validate_addr,
afc4b13d 3301 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
7ff0bcf6
JP		 3302 .ndo_do_ioctl = qeth_l3_do_ioctl,
3303 .ndo_change_mtu = qeth_change_mtu,
3304 .ndo_fix_features = qeth_l3_fix_features,
3305 .ndo_set_features = qeth_l3_set_features,
3d58cefd
FB		 3306 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3307 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
7ff0bcf6 3308 .ndo_tx_timeout = qeth_tx_timeout,
3d58cefd
FB		 3309 .ndo_neigh_setup = qeth_l3_neigh_setup,
3310};
3311
4a71df50
FB		 3312static int qeth_l3_setup_netdev(struct qeth_card *card)
3313{
5113fec0
UB		 3314 if (card->info.type == QETH_CARD_TYPE_OSD ||
3315 card->info.type == QETH_CARD_TYPE_OSX) {
4a71df50
FB		 3316 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3317 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3318#ifdef CONFIG_TR
3319 card->dev = alloc_trdev(0);
3320#endif
3321 if (!card->dev)
3322 return -ENODEV;
3d58cefd 3323 card->dev->netdev_ops = &qeth_l3_netdev_ops;
4a71df50
FB		 3324 } else {
3325 card->dev = alloc_etherdev(0);
3326 if (!card->dev)
3327 return -ENODEV;
3d58cefd 3328 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
4a71df50
FB		 3329
3330 /*IPv6 address autoconfiguration stuff*/
3331 qeth_l3_get_unique_id(card);
3332 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3333 card->dev->dev_id = card->info.unique_id &
3334 0xffff;
c5e631a8
FB		 3335 if (!card->info.guestlan) {
3336 card->dev->hw_features = NETIF_F_SG |
3337 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3338 NETIF_F_TSO;
3339 card->dev->features = NETIF_F_RXCSUM;
3340 }
4a71df50
FB		 3341 }
3342 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3343 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3344 if (!card->dev)
3345 return -ENODEV;
3346 card->dev->flags |= IFF_NOARP;
3d58cefd 3347 card->dev->netdev_ops = &qeth_l3_netdev_ops;
4a71df50 3348 qeth_l3_iqd_read_initial_mac(card);
b3332930
FB		 3349 if (card->options.hsuid[0])
3350 memcpy(card->dev->perm_addr, card->options.hsuid, 9);
4a71df50
FB		 3351 } else
3352 return -ENODEV;
3353
509e2562 3354 card->dev->ml_priv = card;
4a71df50 3355 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50
FB		 3356 card->dev->mtu = card->info.initial_mtu;
3357 SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
3358 card->dev->features |= NETIF_F_HW_VLAN_TX |
3359 NETIF_F_HW_VLAN_RX |
3360 NETIF_F_HW_VLAN_FILTER;
86d15cd8 3361 card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
c3b4a740 3362 card->dev->gso_max_size = 15 * PAGE_SIZE;
4a71df50
FB		 3363
3364 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
a1c3ed4c 3365 netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
4a71df50
FB		 3366 return register_netdev(card->dev);
3367}
3368
4a71df50
FB		 3369static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3370{
3371 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3372
3373 qeth_l3_create_device_attributes(&gdev->dev);
3374 card->options.layer2 = 0;
1da74b1c 3375 card->info.hwtrap = 0;
a1c3ed4c 3376 card->discipline.start_poll = qeth_qdio_start_poll;
4a71df50 3377 card->discipline.input_handler = (qdio_handler_t *)
a1c3ed4c 3378 qeth_qdio_input_handler;
4a71df50
FB		 3379 card->discipline.output_handler = (qdio_handler_t *)
3380 qeth_qdio_output_handler;
3381 card->discipline.recover = qeth_l3_recover;
3382 return 0;
3383}
3384
3385static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3386{
3387 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3388
9dc48ccc
UB		 3389 qeth_l3_remove_device_attributes(&cgdev->dev);
3390
f2148565 3391 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 3392 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3393
70919e23 3394 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 3395 qeth_l3_set_offline(cgdev);
4a71df50
FB		 3396
3397 if (card->dev) {
3398 unregister_netdev(card->dev);
3399 card->dev = NULL;
3400 }
3401
70919e23 3402 qeth_l3_clear_ip_list(card, 0);
4a71df50
FB		 3403 qeth_l3_clear_ipato_list(card);
3404 return;
3405}
3406
3407static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3408{
3409 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3410 int rc = 0;
3411 enum qeth_card_states recover_flag;
3412
3413 BUG_ON(!card);
9dc48ccc 3414 mutex_lock(&card->discipline_mutex);
c4949f07 3415 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3416 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3417 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 3418
4a71df50 3419 recover_flag = card->state;
4a71df50
FB		 3420 rc = qeth_core_hardsetup_card(card);
3421 if (rc) {
d11ba0c4 3422 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
aa909224 3423 rc = -ENODEV;
4a71df50
FB		 3424 goto out_remove;
3425 }
3426
aa909224
UB		 3427 if (!card->dev && qeth_l3_setup_netdev(card)) {
3428 rc = -ENODEV;
4a71df50 3429 goto out_remove;
aa909224 3430 }
4a71df50 3431
1da74b1c
FB		 3432 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3433 if (card->info.hwtrap &&
3434 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3435 card->info.hwtrap = 0;
3436 } else
3437 card->info.hwtrap = 0;
3438
4a71df50 3439 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 3440 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 3441 qeth_print_status_message(card);
3442
3443 /* softsetup */
d11ba0c4 3444 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 3445
3446 rc = qeth_send_startlan(card);
3447 if (rc) {
d11ba0c4 3448 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 3449 if (rc == 0xe080) {
74eacdb9
FB		 3450 dev_warn(&card->gdev->dev,
3451 "The LAN is offline\n");
4a71df50 3452 card->lan_online = 0;
2b6203bb 3453 goto contin;
4a71df50 3454 }
aa909224 3455 rc = -ENODEV;
f2148565 3456 goto out_remove;
4a71df50
FB		 3457 } else
3458 card->lan_online = 1;
4a71df50 3459
2b6203bb 3460contin:
4a71df50
FB		 3461 rc = qeth_l3_setadapter_parms(card);
3462 if (rc)
d11ba0c4 3463 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
76b11f8e
UB		 3464 if (!card->options.sniffer) {
3465 rc = qeth_l3_start_ipassists(card);
3466 if (rc)
3467 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
76b11f8e
UB		 3468 rc = qeth_l3_setrouting_v4(card);
3469 if (rc)
3470 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3471 rc = qeth_l3_setrouting_v6(card);
3472 if (rc)
3473 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3474 }
4a71df50
FB		 3475 netif_tx_disable(card->dev);
3476
3477 rc = qeth_init_qdio_queues(card);
3478 if (rc) {
d11ba0c4 3479 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 3480 rc = -ENODEV;
4a71df50
FB		 3481 goto out_remove;
3482 }
3483 card->state = CARD_STATE_SOFTSETUP;
4a71df50
FB		 3484
3485 qeth_set_allowed_threads(card, 0xffffffff, 0);
e8069040 3486 qeth_l3_set_ip_addr_list(card);
2b6203bb
UB		 3487 if (card->lan_online)
3488 netif_carrier_on(card->dev);
3489 else
3490 netif_carrier_off(card->dev);
8af7c5ae 3491 if (recover_flag == CARD_STATE_RECOVER) {
4763b0a0 3492 rtnl_lock();
8af7c5ae 3493 if (recovery_mode)
39423440 3494 __qeth_l3_open(card->dev);
4763b0a0 3495 else
8af7c5ae 3496 dev_open(card->dev);
8af7c5ae 3497 qeth_l3_set_multicast_list(card->dev);
4763b0a0 3498 rtnl_unlock();
4a71df50
FB		 3499 }
3500 /* let user_space know that device is online */
3501 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3502 mutex_unlock(&card->conf_mutex);
9dc48ccc 3503 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3504 return 0;
3505out_remove:
4a71df50
FB		 3506 qeth_l3_stop_card(card, 0);
3507 ccw_device_set_offline(CARD_DDEV(card));
3508 ccw_device_set_offline(CARD_WDEV(card));
3509 ccw_device_set_offline(CARD_RDEV(card));
3510 if (recover_flag == CARD_STATE_RECOVER)
3511 card->state = CARD_STATE_RECOVER;
3512 else
3513 card->state = CARD_STATE_DOWN;
c4949f07 3514 mutex_unlock(&card->conf_mutex);
9dc48ccc 3515 mutex_unlock(&card->discipline_mutex);
aa909224 3516 return rc;
4a71df50
FB		 3517}
3518
3519static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3520{
3521 return __qeth_l3_set_online(gdev, 0);
3522}
3523
3524static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3525 int recovery_mode)
3526{
3527 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3528 int rc = 0, rc2 = 0, rc3 = 0;
3529 enum qeth_card_states recover_flag;
3530
9dc48ccc 3531 mutex_lock(&card->discipline_mutex);
c4949f07 3532 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3533 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3534 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 3535
3536 if (card->dev && netif_carrier_ok(card->dev))
3537 netif_carrier_off(card->dev);
3538 recover_flag = card->state;
1da74b1c
FB		 3539 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3540 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3541 card->info.hwtrap = 1;
3542 }
0f5623c9 3543 qeth_l3_stop_card(card, recovery_mode);
72861ae7
EL		 3544 if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
3545 rtnl_lock();
3546 call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
3547 rtnl_unlock();
3548 }
4a71df50
FB		 3549 rc = ccw_device_set_offline(CARD_DDEV(card));
3550 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3551 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3552 if (!rc)
3553 rc = (rc2) ? rc2 : rc3;
3554 if (rc)
d11ba0c4 3555 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50
FB		 3556 if (recover_flag == CARD_STATE_UP)
3557 card->state = CARD_STATE_RECOVER;
3558 /* let user_space know that device is offline */
3559 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3560 mutex_unlock(&card->conf_mutex);
9dc48ccc 3561 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3562 return 0;
3563}
3564
3565static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3566{
3567 return __qeth_l3_set_offline(cgdev, 0);
3568}
3569
3570static int qeth_l3_recover(void *ptr)
3571{
3572 struct qeth_card *card;
3573 int rc = 0;
3574
3575 card = (struct qeth_card *) ptr;
847a50fd
CO		 3576 QETH_CARD_TEXT(card, 2, "recover1");
3577 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
4a71df50
FB		 3578 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3579 return 0;
847a50fd 3580 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 3581 dev_warn(&card->gdev->dev,
3582 "A recovery process has been started for the device\n");
4a71df50
FB		 3583 __qeth_l3_set_offline(card->gdev, 1);
3584 rc = __qeth_l3_set_online(card->gdev, 1);
4a71df50 3585 if (!rc)
74eacdb9
FB		 3586 dev_info(&card->gdev->dev,
3587 "Device successfully recovered!\n");
28a7e4c9
UB		 3588 else {
3589 rtnl_lock();
3590 dev_close(card->dev);
3591 rtnl_unlock();
74eacdb9
FB		 3592 dev_warn(&card->gdev->dev, "The qeth device driver "
3593 "failed to recover an error on the device\n");
28a7e4c9 3594 }
a1c3ed4c
FB		 3595 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3596 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 3597 return 0;
3598}
3599
3600static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3601{
3602 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
f78ac2bb 3603 qeth_set_allowed_threads(card, 0, 1);
1da74b1c
FB		 3604 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
3605 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
4a71df50
FB		 3606 qeth_qdio_clear_card(card, 0);
3607 qeth_clear_qdio_buffers(card);
3608}
3609
bbcfcdc8
FB		 3610static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3611{
3612 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3613
3614 if (card->dev)
3615 netif_device_detach(card->dev);
3616 qeth_set_allowed_threads(card, 0, 1);
3617 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3618 if (gdev->state == CCWGROUP_OFFLINE)
3619 return 0;
3620 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 3621 if (card->info.hwtrap)
3622 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 3623 __qeth_l3_set_offline(card->gdev, 1);
3624 } else
3625 __qeth_l3_set_offline(card->gdev, 0);
3626 return 0;
3627}
3628
3629static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3630{
3631 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3632 int rc = 0;
3633
3634 if (gdev->state == CCWGROUP_OFFLINE)
3635 goto out;
3636
3637 if (card->state == CARD_STATE_RECOVER) {
3638 rc = __qeth_l3_set_online(card->gdev, 1);
3639 if (rc) {
869da90b
UB		 3640 rtnl_lock();
3641 dev_close(card->dev);
3642 rtnl_unlock();
bbcfcdc8
FB		 3643 }
3644 } else
3645 rc = __qeth_l3_set_online(card->gdev, 0);
3646out:
3647 qeth_set_allowed_threads(card, 0xffffffff, 0);
3648 if (card->dev)
3649 netif_device_attach(card->dev);
3650 if (rc)
3651 dev_warn(&card->gdev->dev, "The qeth device driver "
3652 "failed to recover an error on the device\n");
3653 return rc;
3654}
3655
4a71df50
FB		 3656struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3657 .probe = qeth_l3_probe_device,
3658 .remove = qeth_l3_remove_device,
3659 .set_online = qeth_l3_set_online,
3660 .set_offline = qeth_l3_set_offline,
3661 .shutdown = qeth_l3_shutdown,
bbcfcdc8
FB		 3662 .freeze = qeth_l3_pm_suspend,
3663 .thaw = qeth_l3_pm_resume,
3664 .restore = qeth_l3_pm_resume,
4a71df50
FB		 3665};
3666EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3667
3668static int qeth_l3_ip_event(struct notifier_block *this,
76fef2b6 3669 unsigned long event, void *ptr)
4a71df50
FB		 3670{
3671 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3672 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3673 struct qeth_ipaddr *addr;
3674 struct qeth_card *card;
3675
c346dca1 3676 if (dev_net(dev) != &init_net)
76fef2b6
DM		 3677 return NOTIFY_DONE;
3678
4a71df50 3679 card = qeth_l3_get_card_from_dev(dev);
847a50fd 3680 QETH_CARD_TEXT(card, 3, "ipevent");
4a71df50
FB		 3681 if (!card)
3682 return NOTIFY_DONE;
3683
3684 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3685 if (addr != NULL) {
3686 addr->u.a4.addr = ifa->ifa_address;
3687 addr->u.a4.mask = ifa->ifa_mask;
3688 addr->type = QETH_IP_TYPE_NORMAL;
3689 } else
3690 goto out;
3691
3692 switch (event) {
3693 case NETDEV_UP:
3694 if (!qeth_l3_add_ip(card, addr))
3695 kfree(addr);
3696 break;
3697 case NETDEV_DOWN:
3698 if (!qeth_l3_delete_ip(card, addr))
3699 kfree(addr);
3700 break;
3701 default:
3702 break;
3703 }
3704 qeth_l3_set_ip_addr_list(card);
3705out:
3706 return NOTIFY_DONE;
3707}
3708
3709static struct notifier_block qeth_l3_ip_notifier = {
3710 qeth_l3_ip_event,
3711 NULL,
3712};
3713
3714#ifdef CONFIG_QETH_IPV6
3715/**
3716 * IPv6 event handler
3717 */
3718static int qeth_l3_ip6_event(struct notifier_block *this,
76fef2b6 3719 unsigned long event, void *ptr)
4a71df50
FB		 3720{
3721 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3722 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3723 struct qeth_ipaddr *addr;
3724 struct qeth_card *card;
3725
4a71df50
FB		 3726 card = qeth_l3_get_card_from_dev(dev);
3727 if (!card)
3728 return NOTIFY_DONE;
847a50fd 3729 QETH_CARD_TEXT(card, 3, "ip6event");
4a71df50
FB		 3730 if (!qeth_is_supported(card, IPA_IPV6))
3731 return NOTIFY_DONE;
3732
3733 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3734 if (addr != NULL) {
3735 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3736 addr->u.a6.pfxlen = ifa->prefix_len;
3737 addr->type = QETH_IP_TYPE_NORMAL;
3738 } else
3739 goto out;
3740
3741 switch (event) {
3742 case NETDEV_UP:
3743 if (!qeth_l3_add_ip(card, addr))
3744 kfree(addr);
3745 break;
3746 case NETDEV_DOWN:
3747 if (!qeth_l3_delete_ip(card, addr))
3748 kfree(addr);
3749 break;
3750 default:
3751 break;
3752 }
3753 qeth_l3_set_ip_addr_list(card);
3754out:
3755 return NOTIFY_DONE;
3756}
3757
3758static struct notifier_block qeth_l3_ip6_notifier = {
3759 qeth_l3_ip6_event,
3760 NULL,
3761};
3762#endif
3763
3764static int qeth_l3_register_notifiers(void)
3765{
3766 int rc;
3767
847a50fd 3768 QETH_DBF_TEXT(SETUP, 5, "regnotif");
4a71df50
FB		 3769 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3770 if (rc)
3771 return rc;
3772#ifdef CONFIG_QETH_IPV6
3773 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3774 if (rc) {
3775 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3776 return rc;
3777 }
3778#else
74eacdb9 3779 pr_warning("There is no IPv6 support for the layer 3 discipline\n");
4a71df50
FB		 3780#endif
3781 return 0;
3782}
3783
3784static void qeth_l3_unregister_notifiers(void)
3785{
3786
847a50fd 3787 QETH_DBF_TEXT(SETUP, 5, "unregnot");
4a71df50
FB		 3788 BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3789#ifdef CONFIG_QETH_IPV6
3790 BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3791#endif /* QETH_IPV6 */
3792}
3793
3794static int __init qeth_l3_init(void)
3795{
3796 int rc = 0;
3797
74eacdb9 3798 pr_info("register layer 3 discipline\n");
4a71df50
FB		 3799 rc = qeth_l3_register_notifiers();
3800 return rc;
3801}
3802
3803static void __exit qeth_l3_exit(void)
3804{
3805 qeth_l3_unregister_notifiers();
74eacdb9 3806 pr_info("unregister layer 3 discipline\n");
4a71df50
FB		 3807}
3808
3809module_init(qeth_l3_init);
3810module_exit(qeth_l3_exit);
3811MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3812MODULE_DESCRIPTION("qeth layer 3 discipline");
3813MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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