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[net-next-2.6.git] / drivers / s390 / net / qeth_l3_main.c
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4a71df50
FB		 1/*
2 * drivers/s390/net/qeth_l3_main.c
3 *
4 * Copyright IBM Corp. 2007
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>
16#include <linux/string.h>
17#include <linux/errno.h>
18#include <linux/kernel.h>
19#include <linux/etherdevice.h>
20#include <linux/mii.h>
21#include <linux/ip.h>
64ef8957 22#include <linux/ipv6.h>
4a71df50
FB		 23#include <linux/inetdevice.h>
24#include <linux/igmp.h>
25
26#include <net/ip.h>
27#include <net/arp.h>
64ef8957 28#include <net/ip6_checksum.h>
4a71df50 29
4a71df50 30#include "qeth_l3.h"
4a71df50 31
4a71df50
FB		 32static int qeth_l3_set_offline(struct ccwgroup_device *);
33static int qeth_l3_recover(void *);
34static int qeth_l3_stop(struct net_device *);
35static void qeth_l3_set_multicast_list(struct net_device *);
36static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
37static int qeth_l3_register_addr_entry(struct qeth_card *,
38 struct qeth_ipaddr *);
39static int qeth_l3_deregister_addr_entry(struct qeth_card *,
40 struct qeth_ipaddr *);
41static int __qeth_l3_set_online(struct ccwgroup_device *, int);
42static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
43
44
45static int qeth_l3_isxdigit(char *buf)
46{
47 while (*buf) {
48 if (!isxdigit(*buf++))
49 return 0;
50 }
51 return 1;
52}
53
54void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
55{
56 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
57}
58
59int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
60{
61 int count = 0, rc = 0;
62 int in[4];
63 char c;
64
65 rc = sscanf(buf, "%u.%u.%u.%u%c",
66 &in[0], &in[1], &in[2], &in[3], &c);
67 if (rc != 4 && (rc != 5 || c != '\n'))
68 return -EINVAL;
69 for (count = 0; count < 4; count++) {
70 if (in[count] > 255)
71 return -EINVAL;
72 addr[count] = in[count];
73 }
74 return 0;
75}
76
77void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
78{
79 sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
80 ":%02x%02x:%02x%02x:%02x%02x:%02x%02x",
81 addr[0], addr[1], addr[2], addr[3],
82 addr[4], addr[5], addr[6], addr[7],
83 addr[8], addr[9], addr[10], addr[11],
84 addr[12], addr[13], addr[14], addr[15]);
85}
86
87int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
88{
89 const char *end, *end_tmp, *start;
90 __u16 *in;
91 char num[5];
92 int num2, cnt, out, found, save_cnt;
93 unsigned short in_tmp[8] = {0, };
94
95 cnt = out = found = save_cnt = num2 = 0;
96 end = start = buf;
97 in = (__u16 *) addr;
98 memset(in, 0, 16);
99 while (*end) {
100 end = strchr(start, ':');
101 if (end == NULL) {
102 end = buf + strlen(buf);
103 end_tmp = strchr(start, '\n');
104 if (end_tmp != NULL)
105 end = end_tmp;
106 out = 1;
107 }
108 if ((end - start)) {
109 memset(num, 0, 5);
110 if ((end - start) > 4)
111 return -EINVAL;
112 memcpy(num, start, end - start);
113 if (!qeth_l3_isxdigit(num))
114 return -EINVAL;
115 sscanf(start, "%x", &num2);
116 if (found)
117 in_tmp[save_cnt++] = num2;
118 else
119 in[cnt++] = num2;
120 if (out)
121 break;
122 } else {
123 if (found)
124 return -EINVAL;
125 found = 1;
126 }
127 start = ++end;
128 }
129 if (cnt + save_cnt > 8)
130 return -EINVAL;
131 cnt = 7;
132 while (save_cnt)
133 in[cnt--] = in_tmp[--save_cnt];
134 return 0;
135}
136
137void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
138 char *buf)
139{
140 if (proto == QETH_PROT_IPV4)
141 qeth_l3_ipaddr4_to_string(addr, buf);
142 else if (proto == QETH_PROT_IPV6)
143 qeth_l3_ipaddr6_to_string(addr, buf);
144}
145
146int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
147 __u8 *addr)
148{
149 if (proto == QETH_PROT_IPV4)
150 return qeth_l3_string_to_ipaddr4(buf, addr);
151 else if (proto == QETH_PROT_IPV6)
152 return qeth_l3_string_to_ipaddr6(buf, addr);
153 else
154 return -EINVAL;
155}
156
157static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
158{
159 int i, j;
160 u8 octet;
161
162 for (i = 0; i < len; ++i) {
163 octet = addr[i];
164 for (j = 7; j >= 0; --j) {
165 bits[i*8 + j] = octet & 1;
166 octet >>= 1;
167 }
168 }
169}
170
171static int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
172 struct qeth_ipaddr *addr)
173{
174 struct qeth_ipato_entry *ipatoe;
175 u8 addr_bits[128] = {0, };
176 u8 ipatoe_bits[128] = {0, };
177 int rc = 0;
178
179 if (!card->ipato.enabled)
180 return 0;
181
182 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
183 (addr->proto == QETH_PROT_IPV4)? 4:16);
184 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
185 if (addr->proto != ipatoe->proto)
186 continue;
187 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
188 (ipatoe->proto == QETH_PROT_IPV4) ?
189 4 : 16);
190 if (addr->proto == QETH_PROT_IPV4)
191 rc = !memcmp(addr_bits, ipatoe_bits,
192 min(32, ipatoe->mask_bits));
193 else
194 rc = !memcmp(addr_bits, ipatoe_bits,
195 min(128, ipatoe->mask_bits));
196 if (rc)
197 break;
198 }
199 /* invert? */
200 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
201 rc = !rc;
202 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
203 rc = !rc;
204
205 return rc;
206}
207
208/*
209 * Add IP to be added to todo list. If there is already an "add todo"
210 * in this list we just incremenent the reference count.
211 * Returns 0 if we just incremented reference count.
212 */
213static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
214 struct qeth_ipaddr *addr, int add)
215{
216 struct qeth_ipaddr *tmp, *t;
217 int found = 0;
218
219 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
220 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
221 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
222 return 0;
223 if ((tmp->proto == QETH_PROT_IPV4) &&
224 (addr->proto == QETH_PROT_IPV4) &&
225 (tmp->type == addr->type) &&
226 (tmp->is_multicast == addr->is_multicast) &&
227 (tmp->u.a4.addr == addr->u.a4.addr) &&
228 (tmp->u.a4.mask == addr->u.a4.mask)) {
229 found = 1;
230 break;
231 }
232 if ((tmp->proto == QETH_PROT_IPV6) &&
233 (addr->proto == QETH_PROT_IPV6) &&
234 (tmp->type == addr->type) &&
235 (tmp->is_multicast == addr->is_multicast) &&
236 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
237 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
238 sizeof(struct in6_addr)) == 0)) {
239 found = 1;
240 break;
241 }
242 }
243 if (found) {
244 if (addr->users != 0)
245 tmp->users += addr->users;
246 else
247 tmp->users += add ? 1 : -1;
248 if (tmp->users == 0) {
249 list_del(&tmp->entry);
250 kfree(tmp);
251 }
252 return 0;
253 } else {
254 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
255 list_add(&addr->entry, card->ip_tbd_list);
256 else {
257 if (addr->users == 0)
258 addr->users += add ? 1 : -1;
259 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
260 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
d11ba0c4 261 QETH_DBF_TEXT(TRACE, 2, "tkovaddr");
4a71df50
FB		 262 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
263 }
264 list_add_tail(&addr->entry, card->ip_tbd_list);
265 }
266 return 1;
267 }
268}
269
270static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
271{
272 unsigned long flags;
273 int rc = 0;
274
d11ba0c4 275 QETH_DBF_TEXT(TRACE, 4, "delip");
4a71df50
FB		 276
277 if (addr->proto == QETH_PROT_IPV4)
d11ba0c4 278 QETH_DBF_HEX(TRACE, 4, &addr->u.a4.addr, 4);
4a71df50 279 else {
d11ba0c4
PT		 280 QETH_DBF_HEX(TRACE, 4, &addr->u.a6.addr, 8);
281 QETH_DBF_HEX(TRACE, 4, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50
FB		 282 }
283 spin_lock_irqsave(&card->ip_lock, flags);
284 rc = __qeth_l3_insert_ip_todo(card, addr, 0);
285 spin_unlock_irqrestore(&card->ip_lock, flags);
286 return rc;
287}
288
289static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
290{
291 unsigned long flags;
292 int rc = 0;
293
d11ba0c4 294 QETH_DBF_TEXT(TRACE, 4, "addip");
4a71df50 295 if (addr->proto == QETH_PROT_IPV4)
d11ba0c4 296 QETH_DBF_HEX(TRACE, 4, &addr->u.a4.addr, 4);
4a71df50 297 else {
d11ba0c4
PT		 298 QETH_DBF_HEX(TRACE, 4, &addr->u.a6.addr, 8);
299 QETH_DBF_HEX(TRACE, 4, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50
FB		 300 }
301 spin_lock_irqsave(&card->ip_lock, flags);
302 rc = __qeth_l3_insert_ip_todo(card, addr, 1);
303 spin_unlock_irqrestore(&card->ip_lock, flags);
304 return rc;
305}
306
307
308static struct qeth_ipaddr *qeth_l3_get_addr_buffer(
309 enum qeth_prot_versions prot)
310{
311 struct qeth_ipaddr *addr;
312
313 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
314 if (addr == NULL) {
4a71df50
FB		 315 return NULL;
316 }
317 addr->type = QETH_IP_TYPE_NORMAL;
318 addr->proto = prot;
319 return addr;
320}
321
322static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
323{
324 struct qeth_ipaddr *iptodo;
325 unsigned long flags;
326
d11ba0c4 327 QETH_DBF_TEXT(TRACE, 4, "delmc");
4a71df50
FB		 328 iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
329 if (!iptodo) {
d11ba0c4 330 QETH_DBF_TEXT(TRACE, 2, "dmcnomem");
4a71df50
FB		 331 return;
332 }
333 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
334 spin_lock_irqsave(&card->ip_lock, flags);
335 if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
336 kfree(iptodo);
337 spin_unlock_irqrestore(&card->ip_lock, flags);
338}
339
340/*
341 * Add/remove address to/from card's ip list, i.e. try to add or remove
342 * reference to/from an IP address that is already registered on the card.
343 * Returns:
344 * 0 address was on card and its reference count has been adjusted,
345 * but is still > 0, so nothing has to be done
346 * also returns 0 if card was not on card and the todo was to delete
347 * the address -> there is also nothing to be done
348 * 1 address was not on card and the todo is to add it to the card's ip
349 * list
350 * -1 address was on card and its reference count has been decremented
351 * to <= 0 by the todo -> address must be removed from card
352 */
353static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
354 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
355{
356 struct qeth_ipaddr *addr;
357 int found = 0;
358
359 list_for_each_entry(addr, &card->ip_list, entry) {
360 if ((addr->proto == QETH_PROT_IPV4) &&
361 (todo->proto == QETH_PROT_IPV4) &&
362 (addr->type == todo->type) &&
363 (addr->u.a4.addr == todo->u.a4.addr) &&
364 (addr->u.a4.mask == todo->u.a4.mask)) {
365 found = 1;
366 break;
367 }
368 if ((addr->proto == QETH_PROT_IPV6) &&
369 (todo->proto == QETH_PROT_IPV6) &&
370 (addr->type == todo->type) &&
371 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
372 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
373 sizeof(struct in6_addr)) == 0)) {
374 found = 1;
375 break;
376 }
377 }
378 if (found) {
379 addr->users += todo->users;
380 if (addr->users <= 0) {
381 *__addr = addr;
382 return -1;
383 } else {
384 /* for VIPA and RXIP limit refcount to 1 */
385 if (addr->type != QETH_IP_TYPE_NORMAL)
386 addr->users = 1;
387 return 0;
388 }
389 }
390 if (todo->users > 0) {
391 /* for VIPA and RXIP limit refcount to 1 */
392 if (todo->type != QETH_IP_TYPE_NORMAL)
393 todo->users = 1;
394 return 1;
395 } else
396 return 0;
397}
398
399static void __qeth_l3_delete_all_mc(struct qeth_card *card,
400 unsigned long *flags)
401{
2d921c32 402 struct list_head fail_list;
4a71df50
FB		 403 struct qeth_ipaddr *addr, *tmp;
404 int rc;
2d921c32
UB		 405
406 INIT_LIST_HEAD(&fail_list);
4a71df50
FB		 407again:
408 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
409 if (addr->is_multicast) {
410 list_del(&addr->entry);
411 spin_unlock_irqrestore(&card->ip_lock, *flags);
412 rc = qeth_l3_deregister_addr_entry(card, addr);
413 spin_lock_irqsave(&card->ip_lock, *flags);
2d921c32 414 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
4a71df50 415 kfree(addr);
2d921c32
UB		 416 else
417 list_add_tail(&addr->entry, &fail_list);
418 goto again;
4a71df50
FB		 419 }
420 }
2d921c32 421 list_splice(&fail_list, &card->ip_list);
4a71df50
FB		 422}
423
424static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
425{
426 struct list_head *tbd_list;
427 struct qeth_ipaddr *todo, *addr;
428 unsigned long flags;
429 int rc;
430
d11ba0c4
PT		 431 QETH_DBF_TEXT(TRACE, 2, "sdiplist");
432 QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *));
4a71df50
FB		 433
434 spin_lock_irqsave(&card->ip_lock, flags);
435 tbd_list = card->ip_tbd_list;
436 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
437 if (!card->ip_tbd_list) {
d11ba0c4 438 QETH_DBF_TEXT(TRACE, 0, "silnomem");
4a71df50
FB		 439 card->ip_tbd_list = tbd_list;
440 spin_unlock_irqrestore(&card->ip_lock, flags);
441 return;
442 } else
443 INIT_LIST_HEAD(card->ip_tbd_list);
444
445 while (!list_empty(tbd_list)) {
446 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
447 list_del(&todo->entry);
448 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
449 __qeth_l3_delete_all_mc(card, &flags);
450 kfree(todo);
451 continue;
452 }
453 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
454 if (rc == 0) {
455 /* nothing to be done; only adjusted refcount */
456 kfree(todo);
457 } else if (rc == 1) {
458 /* new entry to be added to on-card list */
459 spin_unlock_irqrestore(&card->ip_lock, flags);
460 rc = qeth_l3_register_addr_entry(card, todo);
461 spin_lock_irqsave(&card->ip_lock, flags);
3caa4af8 462 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
4a71df50
FB		 463 list_add_tail(&todo->entry, &card->ip_list);
464 else
465 kfree(todo);
466 } else if (rc == -1) {
467 /* on-card entry to be removed */
468 list_del_init(&addr->entry);
469 spin_unlock_irqrestore(&card->ip_lock, flags);
470 rc = qeth_l3_deregister_addr_entry(card, addr);
471 spin_lock_irqsave(&card->ip_lock, flags);
2d921c32 472 if (!rc || (rc == IPA_RC_PRIMARY_ALREADY_DEFINED))
4a71df50
FB		 473 kfree(addr);
474 else
475 list_add_tail(&addr->entry, &card->ip_list);
476 kfree(todo);
477 }
478 }
479 spin_unlock_irqrestore(&card->ip_lock, flags);
480 kfree(tbd_list);
481}
482
483static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean,
484 int recover)
485{
486 struct qeth_ipaddr *addr, *tmp;
487 unsigned long flags;
488
d11ba0c4 489 QETH_DBF_TEXT(TRACE, 4, "clearip");
4a71df50
FB		 490 spin_lock_irqsave(&card->ip_lock, flags);
491 /* clear todo list */
492 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
493 list_del(&addr->entry);
494 kfree(addr);
495 }
496
497 while (!list_empty(&card->ip_list)) {
498 addr = list_entry(card->ip_list.next,
499 struct qeth_ipaddr, entry);
500 list_del_init(&addr->entry);
501 if (clean) {
502 spin_unlock_irqrestore(&card->ip_lock, flags);
503 qeth_l3_deregister_addr_entry(card, addr);
504 spin_lock_irqsave(&card->ip_lock, flags);
505 }
506 if (!recover || addr->is_multicast) {
507 kfree(addr);
508 continue;
509 }
510 list_add_tail(&addr->entry, card->ip_tbd_list);
511 }
512 spin_unlock_irqrestore(&card->ip_lock, flags);
513}
514
515static int qeth_l3_address_exists_in_list(struct list_head *list,
516 struct qeth_ipaddr *addr, int same_type)
517{
518 struct qeth_ipaddr *tmp;
519
520 list_for_each_entry(tmp, list, entry) {
521 if ((tmp->proto == QETH_PROT_IPV4) &&
522 (addr->proto == QETH_PROT_IPV4) &&
523 ((same_type && (tmp->type == addr->type)) ||
524 (!same_type && (tmp->type != addr->type))) &&
525 (tmp->u.a4.addr == addr->u.a4.addr))
526 return 1;
527
528 if ((tmp->proto == QETH_PROT_IPV6) &&
529 (addr->proto == QETH_PROT_IPV6) &&
530 ((same_type && (tmp->type == addr->type)) ||
531 (!same_type && (tmp->type != addr->type))) &&
532 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
533 sizeof(struct in6_addr)) == 0))
534 return 1;
535
536 }
537 return 0;
538}
539
540static int qeth_l3_send_setdelmc(struct qeth_card *card,
541 struct qeth_ipaddr *addr, int ipacmd)
542{
543 int rc;
544 struct qeth_cmd_buffer *iob;
545 struct qeth_ipa_cmd *cmd;
546
d11ba0c4 547 QETH_DBF_TEXT(TRACE, 4, "setdelmc");
4a71df50
FB		 548
549 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
550 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
551 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
552 if (addr->proto == QETH_PROT_IPV6)
553 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
554 sizeof(struct in6_addr));
555 else
556 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
557
558 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
559
560 return rc;
561}
562
563static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
564{
565 int i, j;
566 for (i = 0; i < 16; i++) {
567 j = (len) - (i * 8);
568 if (j >= 8)
569 netmask[i] = 0xff;
570 else if (j > 0)
571 netmask[i] = (u8)(0xFF00 >> j);
572 else
573 netmask[i] = 0;
574 }
575}
576
577static int qeth_l3_send_setdelip(struct qeth_card *card,
578 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
579{
580 int rc;
581 struct qeth_cmd_buffer *iob;
582 struct qeth_ipa_cmd *cmd;
583 __u8 netmask[16];
584
d11ba0c4
PT		 585 QETH_DBF_TEXT(TRACE, 4, "setdelip");
586 QETH_DBF_TEXT_(TRACE, 4, "flags%02X", flags);
4a71df50
FB		 587
588 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
589 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
590 if (addr->proto == QETH_PROT_IPV6) {
591 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
592 sizeof(struct in6_addr));
593 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
594 memcpy(cmd->data.setdelip6.mask, netmask,
595 sizeof(struct in6_addr));
596 cmd->data.setdelip6.flags = flags;
597 } else {
598 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
599 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
600 cmd->data.setdelip4.flags = flags;
601 }
602
603 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
604
605 return rc;
606}
607
608static int qeth_l3_send_setrouting(struct qeth_card *card,
609 enum qeth_routing_types type, enum qeth_prot_versions prot)
610{
611 int rc;
612 struct qeth_ipa_cmd *cmd;
613 struct qeth_cmd_buffer *iob;
614
d11ba0c4 615 QETH_DBF_TEXT(TRACE, 4, "setroutg");
4a71df50
FB		 616 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
617 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
618 cmd->data.setrtg.type = (type);
619 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
620
621 return rc;
622}
623
624static void qeth_l3_correct_routing_type(struct qeth_card *card,
625 enum qeth_routing_types *type, enum qeth_prot_versions prot)
626{
627 if (card->info.type == QETH_CARD_TYPE_IQD) {
628 switch (*type) {
629 case NO_ROUTER:
630 case PRIMARY_CONNECTOR:
631 case SECONDARY_CONNECTOR:
632 case MULTICAST_ROUTER:
633 return;
634 default:
635 goto out_inval;
636 }
637 } else {
638 switch (*type) {
639 case NO_ROUTER:
640 case PRIMARY_ROUTER:
641 case SECONDARY_ROUTER:
642 return;
643 case MULTICAST_ROUTER:
644 if (qeth_is_ipafunc_supported(card, prot,
645 IPA_OSA_MC_ROUTER))
646 return;
647 default:
648 goto out_inval;
649 }
650 }
651out_inval:
4a71df50
FB		 652 *type = NO_ROUTER;
653}
654
655int qeth_l3_setrouting_v4(struct qeth_card *card)
656{
657 int rc;
658
d11ba0c4 659 QETH_DBF_TEXT(TRACE, 3, "setrtg4");
4a71df50
FB		 660
661 qeth_l3_correct_routing_type(card, &card->options.route4.type,
662 QETH_PROT_IPV4);
663
664 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
665 QETH_PROT_IPV4);
666 if (rc) {
667 card->options.route4.type = NO_ROUTER;
14cc21b6
FB		 668 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
669 " on %s. Type set to 'no router'.\n", rc,
670 QETH_CARD_IFNAME(card));
4a71df50
FB		 671 }
672 return rc;
673}
674
675int qeth_l3_setrouting_v6(struct qeth_card *card)
676{
677 int rc = 0;
678
d11ba0c4 679 QETH_DBF_TEXT(TRACE, 3, "setrtg6");
4a71df50
FB		 680#ifdef CONFIG_QETH_IPV6
681
682 if (!qeth_is_supported(card, IPA_IPV6))
683 return 0;
684 qeth_l3_correct_routing_type(card, &card->options.route6.type,
685 QETH_PROT_IPV6);
686
687 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
688 QETH_PROT_IPV6);
689 if (rc) {
690 card->options.route6.type = NO_ROUTER;
14cc21b6
FB		 691 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
692 " on %s. Type set to 'no router'.\n", rc,
693 QETH_CARD_IFNAME(card));
4a71df50
FB		 694 }
695#endif
696 return rc;
697}
698
699/*
700 * IP address takeover related functions
701 */
702static void qeth_l3_clear_ipato_list(struct qeth_card *card)
703{
704
705 struct qeth_ipato_entry *ipatoe, *tmp;
706 unsigned long flags;
707
708 spin_lock_irqsave(&card->ip_lock, flags);
709 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
710 list_del(&ipatoe->entry);
711 kfree(ipatoe);
712 }
713 spin_unlock_irqrestore(&card->ip_lock, flags);
714}
715
716int qeth_l3_add_ipato_entry(struct qeth_card *card,
717 struct qeth_ipato_entry *new)
718{
719 struct qeth_ipato_entry *ipatoe;
720 unsigned long flags;
721 int rc = 0;
722
d11ba0c4 723 QETH_DBF_TEXT(TRACE, 2, "addipato");
4a71df50
FB		 724 spin_lock_irqsave(&card->ip_lock, flags);
725 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
726 if (ipatoe->proto != new->proto)
727 continue;
728 if (!memcmp(ipatoe->addr, new->addr,
729 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
730 (ipatoe->mask_bits == new->mask_bits)) {
4a71df50
FB		 731 rc = -EEXIST;
732 break;
733 }
734 }
735 if (!rc)
736 list_add_tail(&new->entry, &card->ipato.entries);
737
738 spin_unlock_irqrestore(&card->ip_lock, flags);
739 return rc;
740}
741
742void qeth_l3_del_ipato_entry(struct qeth_card *card,
743 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
744{
745 struct qeth_ipato_entry *ipatoe, *tmp;
746 unsigned long flags;
747
d11ba0c4 748 QETH_DBF_TEXT(TRACE, 2, "delipato");
4a71df50
FB		 749 spin_lock_irqsave(&card->ip_lock, flags);
750 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
751 if (ipatoe->proto != proto)
752 continue;
753 if (!memcmp(ipatoe->addr, addr,
754 (proto == QETH_PROT_IPV4)? 4:16) &&
755 (ipatoe->mask_bits == mask_bits)) {
756 list_del(&ipatoe->entry);
757 kfree(ipatoe);
758 }
759 }
760 spin_unlock_irqrestore(&card->ip_lock, flags);
761}
762
763/*
764 * VIPA related functions
765 */
766int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
767 const u8 *addr)
768{
769 struct qeth_ipaddr *ipaddr;
770 unsigned long flags;
771 int rc = 0;
772
773 ipaddr = qeth_l3_get_addr_buffer(proto);
774 if (ipaddr) {
775 if (proto == QETH_PROT_IPV4) {
d11ba0c4 776 QETH_DBF_TEXT(TRACE, 2, "addvipa4");
4a71df50
FB		 777 memcpy(&ipaddr->u.a4.addr, addr, 4);
778 ipaddr->u.a4.mask = 0;
779 } else if (proto == QETH_PROT_IPV6) {
d11ba0c4 780 QETH_DBF_TEXT(TRACE, 2, "addvipa6");
4a71df50
FB		 781 memcpy(&ipaddr->u.a6.addr, addr, 16);
782 ipaddr->u.a6.pfxlen = 0;
783 }
784 ipaddr->type = QETH_IP_TYPE_VIPA;
785 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
786 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
787 } else
788 return -ENOMEM;
789 spin_lock_irqsave(&card->ip_lock, flags);
790 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
791 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
792 rc = -EEXIST;
793 spin_unlock_irqrestore(&card->ip_lock, flags);
794 if (rc) {
4a71df50
FB		 795 return rc;
796 }
797 if (!qeth_l3_add_ip(card, ipaddr))
798 kfree(ipaddr);
799 qeth_l3_set_ip_addr_list(card);
800 return rc;
801}
802
803void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
804 const u8 *addr)
805{
806 struct qeth_ipaddr *ipaddr;
807
808 ipaddr = qeth_l3_get_addr_buffer(proto);
809 if (ipaddr) {
810 if (proto == QETH_PROT_IPV4) {
d11ba0c4 811 QETH_DBF_TEXT(TRACE, 2, "delvipa4");
4a71df50
FB		 812 memcpy(&ipaddr->u.a4.addr, addr, 4);
813 ipaddr->u.a4.mask = 0;
814 } else if (proto == QETH_PROT_IPV6) {
d11ba0c4 815 QETH_DBF_TEXT(TRACE, 2, "delvipa6");
4a71df50
FB		 816 memcpy(&ipaddr->u.a6.addr, addr, 16);
817 ipaddr->u.a6.pfxlen = 0;
818 }
819 ipaddr->type = QETH_IP_TYPE_VIPA;
820 } else
821 return;
822 if (!qeth_l3_delete_ip(card, ipaddr))
823 kfree(ipaddr);
824 qeth_l3_set_ip_addr_list(card);
825}
826
827/*
828 * proxy ARP related functions
829 */
830int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
831 const u8 *addr)
832{
833 struct qeth_ipaddr *ipaddr;
834 unsigned long flags;
835 int rc = 0;
836
837 ipaddr = qeth_l3_get_addr_buffer(proto);
838 if (ipaddr) {
839 if (proto == QETH_PROT_IPV4) {
d11ba0c4 840 QETH_DBF_TEXT(TRACE, 2, "addrxip4");
4a71df50
FB		 841 memcpy(&ipaddr->u.a4.addr, addr, 4);
842 ipaddr->u.a4.mask = 0;
843 } else if (proto == QETH_PROT_IPV6) {
d11ba0c4 844 QETH_DBF_TEXT(TRACE, 2, "addrxip6");
4a71df50
FB		 845 memcpy(&ipaddr->u.a6.addr, addr, 16);
846 ipaddr->u.a6.pfxlen = 0;
847 }
848 ipaddr->type = QETH_IP_TYPE_RXIP;
849 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
850 ipaddr->del_flags = 0;
851 } else
852 return -ENOMEM;
853 spin_lock_irqsave(&card->ip_lock, flags);
854 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
855 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
856 rc = -EEXIST;
857 spin_unlock_irqrestore(&card->ip_lock, flags);
858 if (rc) {
4a71df50
FB		 859 return rc;
860 }
861 if (!qeth_l3_add_ip(card, ipaddr))
862 kfree(ipaddr);
863 qeth_l3_set_ip_addr_list(card);
864 return 0;
865}
866
867void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
868 const u8 *addr)
869{
870 struct qeth_ipaddr *ipaddr;
871
872 ipaddr = qeth_l3_get_addr_buffer(proto);
873 if (ipaddr) {
874 if (proto == QETH_PROT_IPV4) {
d11ba0c4 875 QETH_DBF_TEXT(TRACE, 2, "addrxip4");
4a71df50
FB		 876 memcpy(&ipaddr->u.a4.addr, addr, 4);
877 ipaddr->u.a4.mask = 0;
878 } else if (proto == QETH_PROT_IPV6) {
d11ba0c4 879 QETH_DBF_TEXT(TRACE, 2, "addrxip6");
4a71df50
FB		 880 memcpy(&ipaddr->u.a6.addr, addr, 16);
881 ipaddr->u.a6.pfxlen = 0;
882 }
883 ipaddr->type = QETH_IP_TYPE_RXIP;
884 } else
885 return;
886 if (!qeth_l3_delete_ip(card, ipaddr))
887 kfree(ipaddr);
888 qeth_l3_set_ip_addr_list(card);
889}
890
891static int qeth_l3_register_addr_entry(struct qeth_card *card,
892 struct qeth_ipaddr *addr)
893{
894 char buf[50];
895 int rc = 0;
896 int cnt = 3;
897
898 if (addr->proto == QETH_PROT_IPV4) {
d11ba0c4
PT		 899 QETH_DBF_TEXT(TRACE, 2, "setaddr4");
900 QETH_DBF_HEX(TRACE, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 901 } else if (addr->proto == QETH_PROT_IPV6) {
d11ba0c4
PT		 902 QETH_DBF_TEXT(TRACE, 2, "setaddr6");
903 QETH_DBF_HEX(TRACE, 3, &addr->u.a6.addr, 8);
904 QETH_DBF_HEX(TRACE, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 905 } else {
d11ba0c4
PT		 906 QETH_DBF_TEXT(TRACE, 2, "setaddr?");
907 QETH_DBF_HEX(TRACE, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 908 }
909 do {
910 if (addr->is_multicast)
911 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
912 else
913 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
914 addr->set_flags);
915 if (rc)
d11ba0c4 916 QETH_DBF_TEXT(TRACE, 2, "failed");
4a71df50
FB		 917 } while ((--cnt > 0) && rc);
918 if (rc) {
d11ba0c4 919 QETH_DBF_TEXT(TRACE, 2, "FAILED");
4a71df50 920 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
74eacdb9
FB		 921 dev_warn(&card->gdev->dev,
922 "Registering IP address %s failed\n", buf);
4a71df50
FB		 923 }
924 return rc;
925}
926
927static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
928 struct qeth_ipaddr *addr)
929{
930 int rc = 0;
931
932 if (addr->proto == QETH_PROT_IPV4) {
d11ba0c4
PT		 933 QETH_DBF_TEXT(TRACE, 2, "deladdr4");
934 QETH_DBF_HEX(TRACE, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 935 } else if (addr->proto == QETH_PROT_IPV6) {
d11ba0c4
PT		 936 QETH_DBF_TEXT(TRACE, 2, "deladdr6");
937 QETH_DBF_HEX(TRACE, 3, &addr->u.a6.addr, 8);
938 QETH_DBF_HEX(TRACE, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 939 } else {
d11ba0c4
PT		 940 QETH_DBF_TEXT(TRACE, 2, "deladdr?");
941 QETH_DBF_HEX(TRACE, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 942 }
943 if (addr->is_multicast)
944 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
945 else
946 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
947 addr->del_flags);
c4cef07c 948 if (rc)
d11ba0c4 949 QETH_DBF_TEXT(TRACE, 2, "failed");
4a71df50
FB		 950
951 return rc;
952}
953
954static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
955{
956 if (cast_type == RTN_MULTICAST)
957 return QETH_CAST_MULTICAST;
958 if (cast_type == RTN_BROADCAST)
959 return QETH_CAST_BROADCAST;
960 return QETH_CAST_UNICAST;
961}
962
963static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
964{
965 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
966 if (cast_type == RTN_MULTICAST)
967 return ct | QETH_CAST_MULTICAST;
968 if (cast_type == RTN_ANYCAST)
969 return ct | QETH_CAST_ANYCAST;
970 if (cast_type == RTN_BROADCAST)
971 return ct | QETH_CAST_BROADCAST;
972 return ct | QETH_CAST_UNICAST;
973}
974
975static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
976 __u32 mode)
977{
978 int rc;
979 struct qeth_cmd_buffer *iob;
980 struct qeth_ipa_cmd *cmd;
981
d11ba0c4 982 QETH_DBF_TEXT(TRACE, 4, "adpmode");
4a71df50
FB		 983
984 iob = qeth_get_adapter_cmd(card, command,
985 sizeof(struct qeth_ipacmd_setadpparms));
986 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
987 cmd->data.setadapterparms.data.mode = mode;
988 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
989 NULL);
990 return rc;
991}
992
993static int qeth_l3_setadapter_hstr(struct qeth_card *card)
994{
995 int rc;
996
d11ba0c4 997 QETH_DBF_TEXT(TRACE, 4, "adphstr");
4a71df50
FB		 998
999 if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
1000 rc = qeth_l3_send_setadp_mode(card,
1001 IPA_SETADP_SET_BROADCAST_MODE,
1002 card->options.broadcast_mode);
1003 if (rc)
14cc21b6 1004 QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
4a71df50
FB		 1005 "device %s: x%x\n",
1006 CARD_BUS_ID(card), rc);
1007 rc = qeth_l3_send_setadp_mode(card,
1008 IPA_SETADP_ALTER_MAC_ADDRESS,
1009 card->options.macaddr_mode);
1010 if (rc)
14cc21b6 1011 QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
4a71df50
FB		 1012 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1013 return rc;
1014 }
1015 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
14cc21b6 1016 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
4a71df50
FB		 1017 "to set broadcast mode, using ALLRINGS "
1018 "on device %s:\n", CARD_BUS_ID(card));
1019 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
14cc21b6 1020 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
4a71df50
FB		 1021 "to set macaddr mode, using NONCANONICAL "
1022 "on device %s:\n", CARD_BUS_ID(card));
1023 return 0;
1024}
1025
1026static int qeth_l3_setadapter_parms(struct qeth_card *card)
1027{
1028 int rc;
1029
d11ba0c4 1030 QETH_DBF_TEXT(SETUP, 2, "setadprm");
4a71df50
FB		 1031
1032 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
74eacdb9
FB		 1033 dev_info(&card->gdev->dev,
1034 "set adapter parameters not supported.\n");
d11ba0c4 1035 QETH_DBF_TEXT(SETUP, 2, " notsupp");
4a71df50
FB		 1036 return 0;
1037 }
1038 rc = qeth_query_setadapterparms(card);
1039 if (rc) {
74eacdb9 1040 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
7f6d95e7 1041 "0x%x\n", dev_name(&card->gdev->dev), rc);
4a71df50
FB		 1042 return rc;
1043 }
1044 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1045 rc = qeth_setadpparms_change_macaddr(card);
1046 if (rc)
74eacdb9 1047 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
6ea2fde1 1048 " address failed\n");
4a71df50
FB		 1049 }
1050
1051 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1052 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1053 rc = qeth_l3_setadapter_hstr(card);
1054
1055 return rc;
1056}
1057
1058static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1059 struct qeth_reply *reply, unsigned long data)
1060{
1061 struct qeth_ipa_cmd *cmd;
1062
d11ba0c4 1063 QETH_DBF_TEXT(TRACE, 4, "defadpcb");
4a71df50
FB		 1064
1065 cmd = (struct qeth_ipa_cmd *) data;
1066 if (cmd->hdr.return_code == 0) {
1067 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1068 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1069 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1070 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1071 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1072 }
1073 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1074 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1075 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
d11ba0c4 1076 QETH_DBF_TEXT_(TRACE, 3, "csum:%d", card->info.csum_mask);
4a71df50
FB		 1077 }
1078 return 0;
1079}
1080
1081static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1082 struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1083 __u16 len, enum qeth_prot_versions prot)
1084{
1085 struct qeth_cmd_buffer *iob;
1086 struct qeth_ipa_cmd *cmd;
1087
d11ba0c4 1088 QETH_DBF_TEXT(TRACE, 4, "getasscm");
4a71df50
FB		 1089 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1090
1091 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1092 cmd->data.setassparms.hdr.assist_no = ipa_func;
1093 cmd->data.setassparms.hdr.length = 8 + len;
1094 cmd->data.setassparms.hdr.command_code = cmd_code;
1095 cmd->data.setassparms.hdr.return_code = 0;
1096 cmd->data.setassparms.hdr.seq_no = 0;
1097
1098 return iob;
1099}
1100
1101static int qeth_l3_send_setassparms(struct qeth_card *card,
1102 struct qeth_cmd_buffer *iob, __u16 len, long data,
1103 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1104 unsigned long),
1105 void *reply_param)
1106{
1107 int rc;
1108 struct qeth_ipa_cmd *cmd;
1109
d11ba0c4 1110 QETH_DBF_TEXT(TRACE, 4, "sendassp");
4a71df50
FB		 1111
1112 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1113 if (len <= sizeof(__u32))
1114 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1115 else /* (len > sizeof(__u32)) */
1116 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1117
1118 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1119 return rc;
1120}
1121
1122#ifdef CONFIG_QETH_IPV6
1123static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1124 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1125{
1126 int rc;
1127 struct qeth_cmd_buffer *iob;
1128
d11ba0c4 1129 QETH_DBF_TEXT(TRACE, 4, "simassp6");
4a71df50
FB		 1130 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1131 0, QETH_PROT_IPV6);
1132 rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1133 qeth_l3_default_setassparms_cb, NULL);
1134 return rc;
1135}
1136#endif
1137
1138static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1139 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1140{
1141 int rc;
1142 int length = 0;
1143 struct qeth_cmd_buffer *iob;
1144
d11ba0c4 1145 QETH_DBF_TEXT(TRACE, 4, "simassp4");
4a71df50
FB		 1146 if (data)
1147 length = sizeof(__u32);
1148 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1149 length, QETH_PROT_IPV4);
1150 rc = qeth_l3_send_setassparms(card, iob, length, data,
1151 qeth_l3_default_setassparms_cb, NULL);
1152 return rc;
1153}
1154
1155static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1156{
1157 int rc;
1158
d11ba0c4 1159 QETH_DBF_TEXT(TRACE, 3, "ipaarp");
4a71df50
FB		 1160
1161 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
74eacdb9
FB		 1162 dev_info(&card->gdev->dev,
1163 "ARP processing not supported on %s!\n",
1164 QETH_CARD_IFNAME(card));
4a71df50
FB		 1165 return 0;
1166 }
1167 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1168 IPA_CMD_ASS_START, 0);
1169 if (rc) {
74eacdb9
FB		 1170 dev_warn(&card->gdev->dev,
1171 "Starting ARP processing support for %s failed\n",
1172 QETH_CARD_IFNAME(card));
4a71df50
FB		 1173 }
1174 return rc;
1175}
1176
1177static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1178{
1179 int rc;
1180
d11ba0c4 1181 QETH_DBF_TEXT(TRACE, 3, "ipaipfrg");
4a71df50
FB		 1182
1183 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
74eacdb9
FB		 1184 dev_info(&card->gdev->dev,
1185 "Hardware IP fragmentation not supported on %s\n",
1186 QETH_CARD_IFNAME(card));
4a71df50
FB		 1187 return -EOPNOTSUPP;
1188 }
1189
1190 rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1191 IPA_CMD_ASS_START, 0);
1192 if (rc) {
74eacdb9
FB		 1193 dev_warn(&card->gdev->dev,
1194 "Starting IP fragmentation support for %s failed\n",
1195 QETH_CARD_IFNAME(card));
4a71df50 1196 } else
74eacdb9
FB		 1197 dev_info(&card->gdev->dev,
1198 "Hardware IP fragmentation enabled \n");
4a71df50
FB		 1199 return rc;
1200}
1201
1202static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1203{
1204 int rc;
1205
d11ba0c4 1206 QETH_DBF_TEXT(TRACE, 3, "stsrcmac");
4a71df50 1207
4a71df50 1208 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
74eacdb9 1209 dev_info(&card->gdev->dev,
fe94e2e0 1210 "Inbound source MAC-address not supported on %s\n",
74eacdb9 1211 QETH_CARD_IFNAME(card));
4a71df50
FB		 1212 return -EOPNOTSUPP;
1213 }
1214
1215 rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1216 IPA_CMD_ASS_START, 0);
1217 if (rc)
74eacdb9 1218 dev_warn(&card->gdev->dev,
fe94e2e0 1219 "Starting source MAC-address support for %s failed\n",
74eacdb9 1220 QETH_CARD_IFNAME(card));
4a71df50
FB		 1221 return rc;
1222}
1223
1224static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1225{
1226 int rc = 0;
1227
d11ba0c4 1228 QETH_DBF_TEXT(TRACE, 3, "strtvlan");
4a71df50
FB		 1229
1230 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
74eacdb9
FB		 1231 dev_info(&card->gdev->dev,
1232 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1233 return -EOPNOTSUPP;
1234 }
1235
1236 rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1237 IPA_CMD_ASS_START, 0);
1238 if (rc) {
74eacdb9
FB		 1239 dev_warn(&card->gdev->dev,
1240 "Starting VLAN support for %s failed\n",
1241 QETH_CARD_IFNAME(card));
4a71df50 1242 } else {
74eacdb9 1243 dev_info(&card->gdev->dev, "VLAN enabled\n");
4a71df50
FB		 1244 }
1245 return rc;
1246}
1247
1248static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1249{
1250 int rc;
1251
d11ba0c4 1252 QETH_DBF_TEXT(TRACE, 3, "stmcast");
4a71df50
FB		 1253
1254 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
74eacdb9
FB		 1255 dev_info(&card->gdev->dev,
1256 "Multicast not supported on %s\n",
1257 QETH_CARD_IFNAME(card));
4a71df50
FB		 1258 return -EOPNOTSUPP;
1259 }
1260
1261 rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1262 IPA_CMD_ASS_START, 0);
1263 if (rc) {
74eacdb9
FB		 1264 dev_warn(&card->gdev->dev,
1265 "Starting multicast support for %s failed\n",
1266 QETH_CARD_IFNAME(card));
4a71df50 1267 } else {
74eacdb9 1268 dev_info(&card->gdev->dev, "Multicast enabled\n");
4a71df50
FB		 1269 card->dev->flags |= IFF_MULTICAST;
1270 }
1271 return rc;
1272}
1273
1274static int qeth_l3_query_ipassists_cb(struct qeth_card *card,
1275 struct qeth_reply *reply, unsigned long data)
1276{
1277 struct qeth_ipa_cmd *cmd;
1278
d11ba0c4 1279 QETH_DBF_TEXT(SETUP, 2, "qipasscb");
4a71df50
FB		 1280
1281 cmd = (struct qeth_ipa_cmd *) data;
1282 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
1283 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
1284 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1285 } else {
1286 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
1287 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1288 }
d11ba0c4
PT		 1289 QETH_DBF_TEXT(SETUP, 2, "suppenbl");
1290 QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_supported);
1291 QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_enabled);
4a71df50
FB		 1292 return 0;
1293}
1294
1295static int qeth_l3_query_ipassists(struct qeth_card *card,
1296 enum qeth_prot_versions prot)
1297{
1298 int rc;
1299 struct qeth_cmd_buffer *iob;
1300
d11ba0c4 1301 QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
4a71df50
FB		 1302 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
1303 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_query_ipassists_cb, NULL);
1304 return rc;
1305}
1306
1307#ifdef CONFIG_QETH_IPV6
1308static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1309{
1310 int rc;
1311
d11ba0c4 1312 QETH_DBF_TEXT(TRACE, 3, "softipv6");
4a71df50
FB		 1313
1314 if (card->info.type == QETH_CARD_TYPE_IQD)
1315 goto out;
1316
1317 rc = qeth_l3_query_ipassists(card, QETH_PROT_IPV6);
1318 if (rc) {
74eacdb9
FB		 1319 dev_err(&card->gdev->dev,
1320 "Activating IPv6 support for %s failed\n",
1321 QETH_CARD_IFNAME(card));
4a71df50
FB		 1322 return rc;
1323 }
1324 rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1325 IPA_CMD_ASS_START, 3);
1326 if (rc) {
74eacdb9
FB		 1327 dev_err(&card->gdev->dev,
1328 "Activating IPv6 support for %s failed\n",
1329 QETH_CARD_IFNAME(card));
4a71df50
FB		 1330 return rc;
1331 }
1332 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1333 IPA_CMD_ASS_START);
1334 if (rc) {
74eacdb9
FB		 1335 dev_err(&card->gdev->dev,
1336 "Activating IPv6 support for %s failed\n",
1337 QETH_CARD_IFNAME(card));
4a71df50
FB		 1338 return rc;
1339 }
1340 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1341 IPA_CMD_ASS_START);
1342 if (rc) {
74eacdb9
FB		 1343 dev_warn(&card->gdev->dev,
1344 "Enabling the passthrough mode for %s failed\n",
1345 QETH_CARD_IFNAME(card));
4a71df50
FB		 1346 return rc;
1347 }
1348out:
74eacdb9 1349 dev_info(&card->gdev->dev, "IPV6 enabled\n");
4a71df50
FB		 1350 return 0;
1351}
1352#endif
1353
1354static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1355{
1356 int rc = 0;
1357
d11ba0c4 1358 QETH_DBF_TEXT(TRACE, 3, "strtipv6");
4a71df50
FB		 1359
1360 if (!qeth_is_supported(card, IPA_IPV6)) {
74eacdb9
FB		 1361 dev_info(&card->gdev->dev,
1362 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1363 return 0;
1364 }
1365#ifdef CONFIG_QETH_IPV6
1366 rc = qeth_l3_softsetup_ipv6(card);
1367#endif
1368 return rc ;
1369}
1370
1371static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1372{
1373 int rc;
1374
d11ba0c4 1375 QETH_DBF_TEXT(TRACE, 3, "stbrdcst");
4a71df50
FB		 1376 card->info.broadcast_capable = 0;
1377 if (!qeth_is_supported(card, IPA_FILTERING)) {
74eacdb9
FB		 1378 dev_info(&card->gdev->dev,
1379 "Broadcast not supported on %s\n",
1380 QETH_CARD_IFNAME(card));
4a71df50
FB		 1381 rc = -EOPNOTSUPP;
1382 goto out;
1383 }
1384 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1385 IPA_CMD_ASS_START, 0);
1386 if (rc) {
74eacdb9
FB		 1387 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1388 "%s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1389 goto out;
1390 }
1391
1392 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1393 IPA_CMD_ASS_CONFIGURE, 1);
1394 if (rc) {
74eacdb9
FB		 1395 dev_warn(&card->gdev->dev,
1396 "Setting up broadcast filtering for %s failed\n",
1397 QETH_CARD_IFNAME(card));
4a71df50
FB		 1398 goto out;
1399 }
1400 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
74eacdb9 1401 dev_info(&card->gdev->dev, "Broadcast enabled\n");
4a71df50
FB		 1402 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1403 IPA_CMD_ASS_ENABLE, 1);
1404 if (rc) {
74eacdb9
FB		 1405 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1406 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1407 goto out;
1408 }
1409 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1410out:
1411 if (card->info.broadcast_capable)
1412 card->dev->flags |= IFF_BROADCAST;
1413 else
1414 card->dev->flags &= ~IFF_BROADCAST;
1415 return rc;
1416}
1417
1418static int qeth_l3_send_checksum_command(struct qeth_card *card)
1419{
1420 int rc;
1421
1422 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1423 IPA_CMD_ASS_START, 0);
1424 if (rc) {
74eacdb9
FB		 1425 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1426 "failed, using SW checksumming\n",
1427 QETH_CARD_IFNAME(card));
4a71df50
FB		 1428 return rc;
1429 }
1430 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1431 IPA_CMD_ASS_ENABLE,
1432 card->info.csum_mask);
1433 if (rc) {
74eacdb9
FB		 1434 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1435 "failed, using SW checksumming\n",
1436 QETH_CARD_IFNAME(card));
4a71df50
FB		 1437 return rc;
1438 }
1439 return 0;
1440}
1441
1442static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1443{
1444 int rc = 0;
1445
d11ba0c4 1446 QETH_DBF_TEXT(TRACE, 3, "strtcsum");
4a71df50
FB		 1447
1448 if (card->options.checksum_type == NO_CHECKSUMMING) {
74eacdb9
FB		 1449 dev_info(&card->gdev->dev,
1450 "Using no checksumming on %s.\n",
1451 QETH_CARD_IFNAME(card));
4a71df50
FB		 1452 return 0;
1453 }
1454 if (card->options.checksum_type == SW_CHECKSUMMING) {
74eacdb9
FB		 1455 dev_info(&card->gdev->dev,
1456 "Using SW checksumming on %s.\n",
1457 QETH_CARD_IFNAME(card));
4a71df50
FB		 1458 return 0;
1459 }
1460 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
74eacdb9
FB		 1461 dev_info(&card->gdev->dev,
1462 "Inbound HW Checksumming not "
1463 "supported on %s,\ncontinuing "
1464 "using Inbound SW Checksumming\n",
1465 QETH_CARD_IFNAME(card));
4a71df50
FB		 1466 card->options.checksum_type = SW_CHECKSUMMING;
1467 return 0;
1468 }
1469 rc = qeth_l3_send_checksum_command(card);
1470 if (!rc)
74eacdb9
FB		 1471 dev_info(&card->gdev->dev,
1472 "HW Checksumming (inbound) enabled\n");
4a71df50
FB		 1473
1474 return rc;
1475}
1476
1477static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1478{
1479 int rc;
1480
d11ba0c4 1481 QETH_DBF_TEXT(TRACE, 3, "sttso");
4a71df50
FB		 1482
1483 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
74eacdb9
FB		 1484 dev_info(&card->gdev->dev,
1485 "Outbound TSO not supported on %s\n",
1486 QETH_CARD_IFNAME(card));
4a71df50
FB		 1487 rc = -EOPNOTSUPP;
1488 } else {
1489 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1490 IPA_CMD_ASS_START, 0);
1491 if (rc)
74eacdb9
FB		 1492 dev_warn(&card->gdev->dev, "Starting outbound TCP "
1493 "segmentation offload for %s failed\n",
1494 QETH_CARD_IFNAME(card));
4a71df50 1495 else
74eacdb9
FB		 1496 dev_info(&card->gdev->dev,
1497 "Outbound TSO enabled\n");
4a71df50
FB		 1498 }
1499 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)) {
1500 card->options.large_send = QETH_LARGE_SEND_NO;
1501 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
1502 }
1503 return rc;
1504}
1505
1506static int qeth_l3_start_ipassists(struct qeth_card *card)
1507{
d11ba0c4 1508 QETH_DBF_TEXT(TRACE, 3, "strtipas");
4a71df50
FB		 1509 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1510 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1511 qeth_l3_start_ipa_source_mac(card); /* go on*/
1512 qeth_l3_start_ipa_vlan(card); /* go on*/
1513 qeth_l3_start_ipa_multicast(card); /* go on*/
1514 qeth_l3_start_ipa_ipv6(card); /* go on*/
1515 qeth_l3_start_ipa_broadcast(card); /* go on*/
1516 qeth_l3_start_ipa_checksum(card); /* go on*/
1517 qeth_l3_start_ipa_tso(card); /* go on*/
1518 return 0;
1519}
1520
1521static int qeth_l3_put_unique_id(struct qeth_card *card)
1522{
1523
1524 int rc = 0;
1525 struct qeth_cmd_buffer *iob;
1526 struct qeth_ipa_cmd *cmd;
1527
d11ba0c4 1528 QETH_DBF_TEXT(TRACE, 2, "puniqeid");
4a71df50
FB		 1529
1530 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
1531 UNIQUE_ID_NOT_BY_CARD)
1532 return -1;
1533 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
1534 QETH_PROT_IPV6);
1535 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1536 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1537 card->info.unique_id;
1538 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
1539 card->dev->dev_addr, OSA_ADDR_LEN);
1540 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
1541 return rc;
1542}
1543
1544static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1545 struct qeth_reply *reply, unsigned long data)
1546{
1547 struct qeth_ipa_cmd *cmd;
1548
1549 cmd = (struct qeth_ipa_cmd *) data;
1550 if (cmd->hdr.return_code == 0)
1551 memcpy(card->dev->dev_addr,
1552 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1553 else
1554 random_ether_addr(card->dev->dev_addr);
1555
1556 return 0;
1557}
1558
1559static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1560{
1561 int rc = 0;
1562 struct qeth_cmd_buffer *iob;
1563 struct qeth_ipa_cmd *cmd;
1564
d11ba0c4 1565 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
4a71df50
FB		 1566
1567 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1568 QETH_PROT_IPV6);
1569 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1570 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1571 card->info.unique_id;
1572
1573 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1574 NULL);
1575 return rc;
1576}
1577
1578static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1579 struct qeth_reply *reply, unsigned long data)
1580{
1581 struct qeth_ipa_cmd *cmd;
1582
1583 cmd = (struct qeth_ipa_cmd *) data;
1584 if (cmd->hdr.return_code == 0)
1585 card->info.unique_id = *((__u16 *)
1586 &cmd->data.create_destroy_addr.unique_id[6]);
1587 else {
1588 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1589 UNIQUE_ID_NOT_BY_CARD;
74eacdb9
FB		 1590 dev_warn(&card->gdev->dev, "The network adapter failed to "
1591 "generate a unique ID\n");
4a71df50
FB		 1592 }
1593 return 0;
1594}
1595
1596static int qeth_l3_get_unique_id(struct qeth_card *card)
1597{
1598 int rc = 0;
1599 struct qeth_cmd_buffer *iob;
1600 struct qeth_ipa_cmd *cmd;
1601
d11ba0c4 1602 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
4a71df50
FB		 1603
1604 if (!qeth_is_supported(card, IPA_IPV6)) {
1605 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1606 UNIQUE_ID_NOT_BY_CARD;
1607 return 0;
1608 }
1609
1610 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1611 QETH_PROT_IPV6);
1612 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1613 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1614 card->info.unique_id;
1615
1616 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1617 return rc;
1618}
1619
1620static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1621 struct net_device *dev)
1622{
1623 if (dev->type == ARPHRD_IEEE802_TR)
1624 ip_tr_mc_map(ipm, mac);
1625 else
1626 ip_eth_mc_map(ipm, mac);
1627}
1628
1629static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1630{
1631 struct qeth_ipaddr *ipm;
1632 struct ip_mc_list *im4;
1633 char buf[MAX_ADDR_LEN];
1634
d11ba0c4 1635 QETH_DBF_TEXT(TRACE, 4, "addmc");
4a71df50
FB		 1636 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
1637 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1638 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1639 if (!ipm)
1640 continue;
1641 ipm->u.a4.addr = im4->multiaddr;
1642 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1643 ipm->is_multicast = 1;
1644 if (!qeth_l3_add_ip(card, ipm))
1645 kfree(ipm);
1646 }
1647}
1648
1649static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1650{
1651 struct in_device *in_dev;
1652 struct vlan_group *vg;
1653 int i;
1654
d11ba0c4 1655 QETH_DBF_TEXT(TRACE, 4, "addmcvl");
4a71df50
FB		 1656 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1657 return;
1658
1659 vg = card->vlangrp;
1660 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
1661 struct net_device *netdev = vlan_group_get_device(vg, i);
1662 if (netdev == NULL ||
1663 !(netdev->flags & IFF_UP))
1664 continue;
1665 in_dev = in_dev_get(netdev);
1666 if (!in_dev)
1667 continue;
1668 read_lock(&in_dev->mc_list_lock);
1669 qeth_l3_add_mc(card, in_dev);
1670 read_unlock(&in_dev->mc_list_lock);
1671 in_dev_put(in_dev);
1672 }
1673}
1674
1675static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1676{
1677 struct in_device *in4_dev;
1678
d11ba0c4 1679 QETH_DBF_TEXT(TRACE, 4, "chkmcv4");
4a71df50
FB		 1680 in4_dev = in_dev_get(card->dev);
1681 if (in4_dev == NULL)
1682 return;
1683 read_lock(&in4_dev->mc_list_lock);
1684 qeth_l3_add_mc(card, in4_dev);
1685 qeth_l3_add_vlan_mc(card);
1686 read_unlock(&in4_dev->mc_list_lock);
1687 in_dev_put(in4_dev);
1688}
1689
1690#ifdef CONFIG_QETH_IPV6
1691static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1692{
1693 struct qeth_ipaddr *ipm;
1694 struct ifmcaddr6 *im6;
1695 char buf[MAX_ADDR_LEN];
1696
d11ba0c4 1697 QETH_DBF_TEXT(TRACE, 4, "addmc6");
4a71df50
FB		 1698 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1699 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1700 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1701 if (!ipm)
1702 continue;
1703 ipm->is_multicast = 1;
1704 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1705 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1706 sizeof(struct in6_addr));
1707 if (!qeth_l3_add_ip(card, ipm))
1708 kfree(ipm);
1709 }
1710}
1711
1712static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1713{
1714 struct inet6_dev *in_dev;
1715 struct vlan_group *vg;
1716 int i;
1717
d11ba0c4 1718 QETH_DBF_TEXT(TRACE, 4, "admc6vl");
4a71df50
FB		 1719 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1720 return;
1721
1722 vg = card->vlangrp;
1723 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
1724 struct net_device *netdev = vlan_group_get_device(vg, i);
1725 if (netdev == NULL ||
1726 !(netdev->flags & IFF_UP))
1727 continue;
1728 in_dev = in6_dev_get(netdev);
1729 if (!in_dev)
1730 continue;
1731 read_lock_bh(&in_dev->lock);
1732 qeth_l3_add_mc6(card, in_dev);
1733 read_unlock_bh(&in_dev->lock);
1734 in6_dev_put(in_dev);
1735 }
1736}
1737
1738static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1739{
1740 struct inet6_dev *in6_dev;
1741
d11ba0c4 1742 QETH_DBF_TEXT(TRACE, 4, "chkmcv6");
4a71df50
FB		 1743 if (!qeth_is_supported(card, IPA_IPV6))
1744 return ;
1745 in6_dev = in6_dev_get(card->dev);
1746 if (in6_dev == NULL)
1747 return;
1748 read_lock_bh(&in6_dev->lock);
1749 qeth_l3_add_mc6(card, in6_dev);
1750 qeth_l3_add_vlan_mc6(card);
1751 read_unlock_bh(&in6_dev->lock);
1752 in6_dev_put(in6_dev);
1753}
1754#endif /* CONFIG_QETH_IPV6 */
1755
1756static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1757 unsigned short vid)
1758{
1759 struct in_device *in_dev;
1760 struct in_ifaddr *ifa;
1761 struct qeth_ipaddr *addr;
1762
d11ba0c4 1763 QETH_DBF_TEXT(TRACE, 4, "frvaddr4");
4a71df50
FB		 1764
1765 in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
1766 if (!in_dev)
1767 return;
1768 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1769 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1770 if (addr) {
1771 addr->u.a4.addr = ifa->ifa_address;
1772 addr->u.a4.mask = ifa->ifa_mask;
1773 addr->type = QETH_IP_TYPE_NORMAL;
1774 if (!qeth_l3_delete_ip(card, addr))
1775 kfree(addr);
1776 }
1777 }
1778 in_dev_put(in_dev);
1779}
1780
1781static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1782 unsigned short vid)
1783{
1784#ifdef CONFIG_QETH_IPV6
1785 struct inet6_dev *in6_dev;
1786 struct inet6_ifaddr *ifa;
1787 struct qeth_ipaddr *addr;
1788
d11ba0c4 1789 QETH_DBF_TEXT(TRACE, 4, "frvaddr6");
4a71df50
FB		 1790
1791 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1792 if (!in6_dev)
1793 return;
1794 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next) {
1795 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1796 if (addr) {
1797 memcpy(&addr->u.a6.addr, &ifa->addr,
1798 sizeof(struct in6_addr));
1799 addr->u.a6.pfxlen = ifa->prefix_len;
1800 addr->type = QETH_IP_TYPE_NORMAL;
1801 if (!qeth_l3_delete_ip(card, addr))
1802 kfree(addr);
1803 }
1804 }
1805 in6_dev_put(in6_dev);
1806#endif /* CONFIG_QETH_IPV6 */
1807}
1808
1809static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1810 unsigned short vid)
1811{
1812 if (!card->vlangrp)
1813 return;
1814 qeth_l3_free_vlan_addresses4(card, vid);
1815 qeth_l3_free_vlan_addresses6(card, vid);
1816}
1817
1818static void qeth_l3_vlan_rx_register(struct net_device *dev,
1819 struct vlan_group *grp)
1820{
509e2562 1821 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 1822 unsigned long flags;
1823
d11ba0c4 1824 QETH_DBF_TEXT(TRACE, 4, "vlanreg");
4a71df50
FB		 1825 spin_lock_irqsave(&card->vlanlock, flags);
1826 card->vlangrp = grp;
1827 spin_unlock_irqrestore(&card->vlanlock, flags);
1828}
1829
1830static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
1831{
4a71df50
FB		 1832 return;
1833}
1834
1835static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
1836{
509e2562 1837 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 1838 unsigned long flags;
1839
d11ba0c4 1840 QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid);
8e98ac48
UB		 1841 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1842 QETH_DBF_TEXT(TRACE, 3, "kidREC");
1843 return;
1844 }
4a71df50
FB		 1845 spin_lock_irqsave(&card->vlanlock, flags);
1846 /* unregister IP addresses of vlan device */
1847 qeth_l3_free_vlan_addresses(card, vid);
1848 vlan_group_set_device(card->vlangrp, vid, NULL);
1849 spin_unlock_irqrestore(&card->vlanlock, flags);
1850 qeth_l3_set_multicast_list(card->dev);
1851}
1852
1853static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card,
1854 struct sk_buff *skb, struct qeth_hdr *hdr)
1855{
1856 unsigned short vlan_id = 0;
1857 __be16 prot;
1858 struct iphdr *ip_hdr;
1859 unsigned char tg_addr[MAX_ADDR_LEN];
1860
1861 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1862 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1863 ETH_P_IP);
1864 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1865 case QETH_CAST_MULTICAST:
1866 switch (prot) {
1867#ifdef CONFIG_QETH_IPV6
1868 case __constant_htons(ETH_P_IPV6):
1869 ndisc_mc_map((struct in6_addr *)
1870 skb->data + 24,
1871 tg_addr, card->dev, 0);
1872 break;
1873#endif
1874 case __constant_htons(ETH_P_IP):
1875 ip_hdr = (struct iphdr *)skb->data;
1876 (card->dev->type == ARPHRD_IEEE802_TR) ?
1877 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
1878 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1879 break;
1880 default:
1881 memcpy(tg_addr, card->dev->broadcast,
1882 card->dev->addr_len);
1883 }
1884 card->stats.multicast++;
1885 skb->pkt_type = PACKET_MULTICAST;
1886 break;
1887 case QETH_CAST_BROADCAST:
1888 memcpy(tg_addr, card->dev->broadcast,
1889 card->dev->addr_len);
1890 card->stats.multicast++;
1891 skb->pkt_type = PACKET_BROADCAST;
1892 break;
1893 case QETH_CAST_UNICAST:
1894 case QETH_CAST_ANYCAST:
1895 case QETH_CAST_NOCAST:
1896 default:
1897 skb->pkt_type = PACKET_HOST;
1898 memcpy(tg_addr, card->dev->dev_addr,
1899 card->dev->addr_len);
1900 }
fe94e2e0
UB		 1901 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1902 card->dev->header_ops->create(skb, card->dev, prot,
1903 tg_addr, &hdr->hdr.l3.dest_addr[2],
1904 card->dev->addr_len);
1905 else
1906 card->dev->header_ops->create(skb, card->dev, prot,
1907 tg_addr, "FAKELL", card->dev->addr_len);
4a71df50
FB		 1908 }
1909
1910#ifdef CONFIG_TR
1911 if (card->dev->type == ARPHRD_IEEE802_TR)
1912 skb->protocol = tr_type_trans(skb, card->dev);
1913 else
1914#endif
1915 skb->protocol = eth_type_trans(skb, card->dev);
1916
1917 if (hdr->hdr.l3.ext_flags &
1918 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
1919 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
1920 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
1921 }
1922
b9139800
UB		 1923 switch (card->options.checksum_type) {
1924 case SW_CHECKSUMMING:
1925 skb->ip_summed = CHECKSUM_NONE;
1926 break;
1927 case NO_CHECKSUMMING:
1928 skb->ip_summed = CHECKSUM_UNNECESSARY;
1929 break;
1930 case HW_CHECKSUMMING:
4a71df50 1931 if ((hdr->hdr.l3.ext_flags &
b9139800
UB		 1932 (QETH_HDR_EXT_CSUM_HDR_REQ |
1933 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1934 (QETH_HDR_EXT_CSUM_HDR_REQ |
1935 QETH_HDR_EXT_CSUM_TRANSP_REQ))
4a71df50
FB		 1936 skb->ip_summed = CHECKSUM_UNNECESSARY;
1937 else
b9139800 1938 skb->ip_summed = CHECKSUM_NONE;
4a71df50
FB		 1939 }
1940
1941 return vlan_id;
1942}
1943
1944static void qeth_l3_process_inbound_buffer(struct qeth_card *card,
1945 struct qeth_qdio_buffer *buf, int index)
1946{
1947 struct qdio_buffer_element *element;
1948 struct sk_buff *skb;
1949 struct qeth_hdr *hdr;
1950 int offset;
1951 __u16 vlan_tag = 0;
1952 unsigned int len;
1953
1954 /* get first element of current buffer */
1955 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
1956 offset = 0;
1957 if (card->options.performance_stats)
1958 card->perf_stats.bufs_rec++;
1959 while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element,
1960 &offset, &hdr))) {
1961 skb->dev = card->dev;
1962 /* is device UP ? */
1963 if (!(card->dev->flags & IFF_UP)) {
1964 dev_kfree_skb_any(skb);
1965 continue;
1966 }
1967
1968 switch (hdr->hdr.l3.id) {
1969 case QETH_HEADER_TYPE_LAYER3:
1970 vlan_tag = qeth_l3_rebuild_skb(card, skb, hdr);
1971 len = skb->len;
1972 if (vlan_tag)
1973 if (card->vlangrp)
1974 vlan_hwaccel_rx(skb, card->vlangrp,
1975 vlan_tag);
1976 else {
1977 dev_kfree_skb_any(skb);
1978 continue;
1979 }
1980 else
1981 netif_rx(skb);
1982 break;
1983 default:
1984 dev_kfree_skb_any(skb);
d11ba0c4
PT		 1985 QETH_DBF_TEXT(TRACE, 3, "inbunkno");
1986 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 1987 continue;
1988 }
1989
1990 card->dev->last_rx = jiffies;
1991 card->stats.rx_packets++;
1992 card->stats.rx_bytes += len;
1993 }
1994}
1995
1996static int qeth_l3_verify_vlan_dev(struct net_device *dev,
1997 struct qeth_card *card)
1998{
1999 int rc = 0;
2000 struct vlan_group *vg;
2001 int i;
2002
2003 vg = card->vlangrp;
2004 if (!vg)
2005 return rc;
2006
2007 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
2008 if (vlan_group_get_device(vg, i) == dev) {
2009 rc = QETH_VLAN_CARD;
2010 break;
2011 }
2012 }
2013
509e2562 2014 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
4a71df50
FB		 2015 return 0;
2016
2017 return rc;
2018}
2019
2020static int qeth_l3_verify_dev(struct net_device *dev)
2021{
2022 struct qeth_card *card;
2023 unsigned long flags;
2024 int rc = 0;
2025
2026 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2027 list_for_each_entry(card, &qeth_core_card_list.list, list) {
2028 if (card->dev == dev) {
2029 rc = QETH_REAL_CARD;
2030 break;
2031 }
2032 rc = qeth_l3_verify_vlan_dev(dev, card);
2033 if (rc)
2034 break;
2035 }
2036 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2037
2038 return rc;
2039}
2040
2041static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2042{
2043 struct qeth_card *card = NULL;
2044 int rc;
2045
2046 rc = qeth_l3_verify_dev(dev);
2047 if (rc == QETH_REAL_CARD)
509e2562 2048 card = dev->ml_priv;
4a71df50 2049 else if (rc == QETH_VLAN_CARD)
509e2562 2050 card = vlan_dev_real_dev(dev)->ml_priv;
e5bd7be5 2051 if (card && card->options.layer2)
4a71df50 2052 card = NULL;
d11ba0c4 2053 QETH_DBF_TEXT_(TRACE, 4, "%d", rc);
4a71df50
FB		 2054 return card ;
2055}
2056
2057static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2058{
2059 int rc = 0;
2060
d11ba0c4
PT		 2061 QETH_DBF_TEXT(SETUP, 2, "stopcard");
2062 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 2063
2064 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 2065 if (card->read.state == CH_STATE_UP &&
2066 card->write.state == CH_STATE_UP &&
2067 (card->state == CARD_STATE_UP)) {
2068 if (recovery_mode)
2069 qeth_l3_stop(card->dev);
8af7c5ae 2070 else {
fc9c2460
UB		 2071 if (card->dev) {
2072 rtnl_lock();
2073 dev_close(card->dev);
2074 rtnl_unlock();
2075 }
8af7c5ae 2076 }
4a71df50
FB		 2077 if (!card->use_hard_stop) {
2078 rc = qeth_send_stoplan(card);
2079 if (rc)
d11ba0c4 2080 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50
FB		 2081 }
2082 card->state = CARD_STATE_SOFTSETUP;
2083 }
2084 if (card->state == CARD_STATE_SOFTSETUP) {
2085 qeth_l3_clear_ip_list(card, !card->use_hard_stop, 1);
2086 qeth_clear_ipacmd_list(card);
2087 card->state = CARD_STATE_HARDSETUP;
2088 }
2089 if (card->state == CARD_STATE_HARDSETUP) {
2090 if (!card->use_hard_stop &&
2091 (card->info.type != QETH_CARD_TYPE_IQD)) {
2092 rc = qeth_l3_put_unique_id(card);
2093 if (rc)
d11ba0c4 2094 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
4a71df50
FB		 2095 }
2096 qeth_qdio_clear_card(card, 0);
2097 qeth_clear_qdio_buffers(card);
2098 qeth_clear_working_pool_list(card);
2099 card->state = CARD_STATE_DOWN;
2100 }
2101 if (card->state == CARD_STATE_DOWN) {
2102 qeth_clear_cmd_buffers(&card->read);
2103 qeth_clear_cmd_buffers(&card->write);
2104 }
2105 card->use_hard_stop = 0;
2106 return rc;
2107}
2108
2109static void qeth_l3_set_multicast_list(struct net_device *dev)
2110{
509e2562 2111 struct qeth_card *card = dev->ml_priv;
4a71df50 2112
d11ba0c4 2113 QETH_DBF_TEXT(TRACE, 3, "setmulti");
8e98ac48
UB		 2114 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2115 (card->state != CARD_STATE_UP))
2116 return;
4a71df50
FB		 2117 qeth_l3_delete_mc_addresses(card);
2118 qeth_l3_add_multicast_ipv4(card);
2119#ifdef CONFIG_QETH_IPV6
2120 qeth_l3_add_multicast_ipv6(card);
2121#endif
2122 qeth_l3_set_ip_addr_list(card);
2123 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2124 return;
2125 qeth_setadp_promisc_mode(card);
2126}
2127
2128static const char *qeth_l3_arp_get_error_cause(int *rc)
2129{
2130 switch (*rc) {
2131 case QETH_IPA_ARP_RC_FAILED:
2132 *rc = -EIO;
2133 return "operation failed";
2134 case QETH_IPA_ARP_RC_NOTSUPP:
2135 *rc = -EOPNOTSUPP;
2136 return "operation not supported";
2137 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2138 *rc = -EINVAL;
2139 return "argument out of range";
2140 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2141 *rc = -EOPNOTSUPP;
2142 return "query operation not supported";
2143 case QETH_IPA_ARP_RC_Q_NO_DATA:
2144 *rc = -ENOENT;
2145 return "no query data available";
2146 default:
2147 return "unknown error";
2148 }
2149}
2150
2151static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2152{
2153 int tmp;
2154 int rc;
2155
d11ba0c4 2156 QETH_DBF_TEXT(TRACE, 3, "arpstnoe");
4a71df50
FB		 2157
2158 /*
2159 * currently GuestLAN only supports the ARP assist function
2160 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2161 * thus we say EOPNOTSUPP for this ARP function
2162 */
2163 if (card->info.guestlan)
2164 return -EOPNOTSUPP;
2165 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2166 return -EOPNOTSUPP;
2167 }
2168 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2169 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2170 no_entries);
2171 if (rc) {
2172 tmp = rc;
14cc21b6
FB		 2173 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2174 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2175 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2176 }
2177 return rc;
2178}
2179
2180static void qeth_l3_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
2181 struct qeth_arp_query_data *qdata, int entry_size,
2182 int uentry_size)
2183{
2184 char *entry_ptr;
2185 char *uentry_ptr;
2186 int i;
2187
2188 entry_ptr = (char *)&qdata->data;
2189 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
2190 for (i = 0; i < qdata->no_entries; ++i) {
2191 /* strip off 32 bytes "media specific information" */
2192 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
2193 entry_ptr += entry_size;
2194 uentry_ptr += uentry_size;
2195 }
2196}
2197
2198static int qeth_l3_arp_query_cb(struct qeth_card *card,
2199 struct qeth_reply *reply, unsigned long data)
2200{
2201 struct qeth_ipa_cmd *cmd;
2202 struct qeth_arp_query_data *qdata;
2203 struct qeth_arp_query_info *qinfo;
2204 int entry_size;
2205 int uentry_size;
2206 int i;
2207
d11ba0c4 2208 QETH_DBF_TEXT(TRACE, 4, "arpquecb");
4a71df50
FB		 2209
2210 qinfo = (struct qeth_arp_query_info *) reply->param;
2211 cmd = (struct qeth_ipa_cmd *) data;
2212 if (cmd->hdr.return_code) {
d11ba0c4 2213 QETH_DBF_TEXT_(TRACE, 4, "qaer1%i", cmd->hdr.return_code);
4a71df50
FB		 2214 return 0;
2215 }
2216 if (cmd->data.setassparms.hdr.return_code) {
2217 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
d11ba0c4 2218 QETH_DBF_TEXT_(TRACE, 4, "qaer2%i", cmd->hdr.return_code);
4a71df50
FB		 2219 return 0;
2220 }
2221 qdata = &cmd->data.setassparms.data.query_arp;
2222 switch (qdata->reply_bits) {
2223 case 5:
2224 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
2225 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2226 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
2227 break;
2228 case 7:
2229 /* fall through to default */
2230 default:
2231 /* tr is the same as eth -> entry7 */
2232 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
2233 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2234 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
2235 break;
2236 }
2237 /* check if there is enough room in userspace */
2238 if ((qinfo->udata_len - qinfo->udata_offset) <
2239 qdata->no_entries * uentry_size){
d11ba0c4 2240 QETH_DBF_TEXT_(TRACE, 4, "qaer3%i", -ENOMEM);
4a71df50 2241 cmd->hdr.return_code = -ENOMEM;
4a71df50
FB		 2242 goto out_error;
2243 }
d11ba0c4 2244 QETH_DBF_TEXT_(TRACE, 4, "anore%i",
4a71df50 2245 cmd->data.setassparms.hdr.number_of_replies);
d11ba0c4
PT		 2246 QETH_DBF_TEXT_(TRACE, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
2247 QETH_DBF_TEXT_(TRACE, 4, "anoen%i", qdata->no_entries);
4a71df50
FB		 2248
2249 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
2250 /* strip off "media specific information" */
2251 qeth_l3_copy_arp_entries_stripped(qinfo, qdata, entry_size,
2252 uentry_size);
2253 } else
2254 /*copy entries to user buffer*/
2255 memcpy(qinfo->udata + qinfo->udata_offset,
2256 (char *)&qdata->data, qdata->no_entries*uentry_size);
2257
2258 qinfo->no_entries += qdata->no_entries;
2259 qinfo->udata_offset += (qdata->no_entries*uentry_size);
2260 /* check if all replies received ... */
2261 if (cmd->data.setassparms.hdr.seq_no <
2262 cmd->data.setassparms.hdr.number_of_replies)
2263 return 1;
2264 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2265 /* keep STRIP_ENTRIES flag so the user program can distinguish
2266 * stripped entries from normal ones */
2267 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2268 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2269 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2270 return 0;
2271out_error:
2272 i = 0;
2273 memcpy(qinfo->udata, &i, 4);
2274 return 0;
2275}
2276
2277static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2278 struct qeth_cmd_buffer *iob, int len,
2279 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2280 unsigned long),
2281 void *reply_param)
2282{
d11ba0c4 2283 QETH_DBF_TEXT(TRACE, 4, "sendarp");
4a71df50
FB		 2284
2285 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2286 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2287 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2288 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2289 reply_cb, reply_param);
2290}
2291
2292static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2293{
2294 struct qeth_cmd_buffer *iob;
2295 struct qeth_arp_query_info qinfo = {0, };
2296 int tmp;
2297 int rc;
2298
d11ba0c4 2299 QETH_DBF_TEXT(TRACE, 3, "arpquery");
4a71df50
FB		 2300
2301 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2302 IPA_ARP_PROCESSING)) {
4a71df50
FB		 2303 return -EOPNOTSUPP;
2304 }
2305 /* get size of userspace buffer and mask_bits -> 6 bytes */
2306 if (copy_from_user(&qinfo, udata, 6))
2307 return -EFAULT;
2308 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2309 if (!qinfo.udata)
2310 return -ENOMEM;
2311 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2312 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2313 IPA_CMD_ASS_ARP_QUERY_INFO,
2314 sizeof(int), QETH_PROT_IPV4);
2315
2316 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2317 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2318 qeth_l3_arp_query_cb, (void *)&qinfo);
2319 if (rc) {
2320 tmp = rc;
14cc21b6 2321 QETH_DBF_MESSAGE(2, "Error while querying ARP cache on %s: %s "
4a71df50
FB		 2322 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2323 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2324 if (copy_to_user(udata, qinfo.udata, 4))
2325 rc = -EFAULT;
2326 } else {
2327 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
2328 rc = -EFAULT;
2329 }
2330 kfree(qinfo.udata);
2331 return rc;
2332}
2333
2334static int qeth_l3_arp_add_entry(struct qeth_card *card,
2335 struct qeth_arp_cache_entry *entry)
2336{
2337 struct qeth_cmd_buffer *iob;
2338 char buf[16];
2339 int tmp;
2340 int rc;
2341
d11ba0c4 2342 QETH_DBF_TEXT(TRACE, 3, "arpadent");
4a71df50
FB		 2343
2344 /*
2345 * currently GuestLAN only supports the ARP assist function
2346 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2347 * thus we say EOPNOTSUPP for this ARP function
2348 */
2349 if (card->info.guestlan)
2350 return -EOPNOTSUPP;
2351 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2352 return -EOPNOTSUPP;
2353 }
2354
2355 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2356 IPA_CMD_ASS_ARP_ADD_ENTRY,
2357 sizeof(struct qeth_arp_cache_entry),
2358 QETH_PROT_IPV4);
2359 rc = qeth_l3_send_setassparms(card, iob,
2360 sizeof(struct qeth_arp_cache_entry),
2361 (unsigned long) entry,
2362 qeth_l3_default_setassparms_cb, NULL);
2363 if (rc) {
2364 tmp = rc;
2365 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2366 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2367 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2368 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2369 }
2370 return rc;
2371}
2372
2373static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2374 struct qeth_arp_cache_entry *entry)
2375{
2376 struct qeth_cmd_buffer *iob;
2377 char buf[16] = {0, };
2378 int tmp;
2379 int rc;
2380
d11ba0c4 2381 QETH_DBF_TEXT(TRACE, 3, "arprment");
4a71df50
FB		 2382
2383 /*
2384 * currently GuestLAN only supports the ARP assist function
2385 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2386 * thus we say EOPNOTSUPP for this ARP function
2387 */
2388 if (card->info.guestlan)
2389 return -EOPNOTSUPP;
2390 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2391 return -EOPNOTSUPP;
2392 }
2393 memcpy(buf, entry, 12);
2394 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2395 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2396 12,
2397 QETH_PROT_IPV4);
2398 rc = qeth_l3_send_setassparms(card, iob,
2399 12, (unsigned long)buf,
2400 qeth_l3_default_setassparms_cb, NULL);
2401 if (rc) {
2402 tmp = rc;
2403 memset(buf, 0, 16);
2404 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2405 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2406 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2407 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2408 }
2409 return rc;
2410}
2411
2412static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2413{
2414 int rc;
2415 int tmp;
2416
d11ba0c4 2417 QETH_DBF_TEXT(TRACE, 3, "arpflush");
4a71df50
FB		 2418
2419 /*
2420 * currently GuestLAN only supports the ARP assist function
2421 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2422 * thus we say EOPNOTSUPP for this ARP function
2423 */
2424 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2425 return -EOPNOTSUPP;
2426 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2427 return -EOPNOTSUPP;
2428 }
2429 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2430 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2431 if (rc) {
2432 tmp = rc;
14cc21b6
FB		 2433 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2434 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2435 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2436 }
2437 return rc;
2438}
2439
2440static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2441{
509e2562 2442 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2443 struct qeth_arp_cache_entry arp_entry;
2444 struct mii_ioctl_data *mii_data;
2445 int rc = 0;
2446
2447 if (!card)
2448 return -ENODEV;
2449
2450 if ((card->state != CARD_STATE_UP) &&
2451 (card->state != CARD_STATE_SOFTSETUP))
2452 return -ENODEV;
2453
2454 switch (cmd) {
2455 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2456 if (!capable(CAP_NET_ADMIN)) {
2457 rc = -EPERM;
2458 break;
2459 }
2460 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2461 break;
2462 case SIOC_QETH_ARP_QUERY_INFO:
2463 if (!capable(CAP_NET_ADMIN)) {
2464 rc = -EPERM;
2465 break;
2466 }
2467 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2468 break;
2469 case SIOC_QETH_ARP_ADD_ENTRY:
2470 if (!capable(CAP_NET_ADMIN)) {
2471 rc = -EPERM;
2472 break;
2473 }
2474 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2475 sizeof(struct qeth_arp_cache_entry)))
2476 rc = -EFAULT;
2477 else
2478 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2479 break;
2480 case SIOC_QETH_ARP_REMOVE_ENTRY:
2481 if (!capable(CAP_NET_ADMIN)) {
2482 rc = -EPERM;
2483 break;
2484 }
2485 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2486 sizeof(struct qeth_arp_cache_entry)))
2487 rc = -EFAULT;
2488 else
2489 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2490 break;
2491 case SIOC_QETH_ARP_FLUSH_CACHE:
2492 if (!capable(CAP_NET_ADMIN)) {
2493 rc = -EPERM;
2494 break;
2495 }
2496 rc = qeth_l3_arp_flush_cache(card);
2497 break;
2498 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2499 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2500 break;
2501 case SIOC_QETH_GET_CARD_TYPE:
2502 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
2503 !card->info.guestlan)
2504 return 1;
2505 return 0;
2506 break;
2507 case SIOCGMIIPHY:
2508 mii_data = if_mii(rq);
2509 mii_data->phy_id = 0;
2510 break;
2511 case SIOCGMIIREG:
2512 mii_data = if_mii(rq);
2513 if (mii_data->phy_id != 0)
2514 rc = -EINVAL;
2515 else
2516 mii_data->val_out = qeth_mdio_read(dev,
2517 mii_data->phy_id,
2518 mii_data->reg_num);
2519 break;
2520 default:
2521 rc = -EOPNOTSUPP;
2522 }
2523 if (rc)
d11ba0c4 2524 QETH_DBF_TEXT_(TRACE, 2, "ioce%d", rc);
4a71df50
FB		 2525 return rc;
2526}
2527
2528static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2529 struct sk_buff *skb, int ipv, int cast_type)
2530{
4a71df50
FB		 2531 memset(hdr, 0, sizeof(struct qeth_hdr));
2532 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2533 hdr->hdr.l3.ext_flags = 0;
2534
2535 /*
2536 * before we're going to overwrite this location with next hop ip.
2537 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2538 */
2539 if (card->vlangrp && vlan_tx_tag_present(skb)) {
213298f8
FB		 2540 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2541 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2542 else
2543 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4a71df50
FB		 2544 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2545 }
2546
2547 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2548 if (ipv == 4) {
2549 /* IPv4 */
2550 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2551 memset(hdr->hdr.l3.dest_addr, 0, 12);
adf30907 2552 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
4a71df50 2553 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
adf30907 2554 *((u32 *) skb_dst(skb)->neighbour->primary_key);
4a71df50
FB		 2555 } else {
2556 /* fill in destination address used in ip header */
2557 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2558 ip_hdr(skb)->daddr;
2559 }
2560 } else if (ipv == 6) {
2561 /* IPv6 */
2562 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2563 if (card->info.type == QETH_CARD_TYPE_IQD)
2564 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
adf30907 2565 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
4a71df50 2566 memcpy(hdr->hdr.l3.dest_addr,
adf30907 2567 skb_dst(skb)->neighbour->primary_key, 16);
4a71df50
FB		 2568 } else {
2569 /* fill in destination address used in ip header */
2570 memcpy(hdr->hdr.l3.dest_addr,
2571 &ipv6_hdr(skb)->daddr, 16);
2572 }
2573 } else {
2574 /* passthrough */
2575 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2576 !memcmp(skb->data + sizeof(struct qeth_hdr) +
2577 sizeof(__u16), skb->dev->broadcast, 6)) {
2578 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2579 QETH_HDR_PASSTHRU;
2580 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2581 skb->dev->broadcast, 6)) {
2582 /* broadcast? */
2583 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2584 QETH_HDR_PASSTHRU;
2585 } else {
2586 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2587 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2588 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2589 }
2590 }
2591}
2592
64ef8957
FB		 2593static void qeth_tso_fill_header(struct qeth_card *card,
2594 struct qeth_hdr *qhdr, struct sk_buff *skb)
2595{
2596 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2597 struct tcphdr *tcph = tcp_hdr(skb);
2598 struct iphdr *iph = ip_hdr(skb);
2599 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2600
2601 /*fix header to TSO values ...*/
2602 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2603 /*set values which are fix for the first approach ...*/
2604 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2605 hdr->ext.imb_hdr_no = 1;
2606 hdr->ext.hdr_type = 1;
2607 hdr->ext.hdr_version = 1;
2608 hdr->ext.hdr_len = 28;
2609 /*insert non-fix values */
2610 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2611 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2612 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2613 sizeof(struct qeth_hdr_tso));
2614 tcph->check = 0;
2615 if (skb->protocol == ETH_P_IPV6) {
2616 ip6h->payload_len = 0;
2617 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2618 0, IPPROTO_TCP, 0);
2619 } else {
2620 /*OSA want us to set these values ...*/
2621 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2622 0, IPPROTO_TCP, 0);
2623 iph->tot_len = 0;
2624 iph->check = 0;
2625 }
2626}
2627
2628static void qeth_tx_csum(struct sk_buff *skb)
2629{
2630 __wsum csum;
2631 int offset;
2632
2633 skb_set_transport_header(skb, skb->csum_start - skb_headroom(skb));
2634 offset = skb->csum_start - skb_headroom(skb);
2635 BUG_ON(offset >= skb_headlen(skb));
2636 csum = skb_checksum(skb, offset, skb->len - offset, 0);
2637
2638 offset += skb->csum_offset;
2639 BUG_ON(offset + sizeof(__sum16) > skb_headlen(skb));
2640 *(__sum16 *)(skb->data + offset) = csum_fold(csum);
2641}
2642
4a71df50
FB		 2643static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2644{
2645 int rc;
2646 u16 *tag;
2647 struct qeth_hdr *hdr = NULL;
2648 int elements_needed = 0;
64ef8957 2649 int elems;
509e2562 2650 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2651 struct sk_buff *new_skb = NULL;
2652 int ipv = qeth_get_ip_version(skb);
2653 int cast_type = qeth_get_cast_type(card, skb);
2654 struct qeth_qdio_out_q *queue = card->qdio.out_qs
2655 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
2656 int tx_bytes = skb->len;
2657 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
683d718a 2658 int data_offset = -1;
64ef8957 2659 int nr_frags;
4a71df50 2660
4a71df50
FB		 2661 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
2662 (skb->protocol != htons(ETH_P_IPV6)) &&
2663 (skb->protocol != htons(ETH_P_IP)))
2664 goto tx_drop;
2665
2666 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2667 card->stats.tx_carrier_errors++;
2668 goto tx_drop;
2669 }
2670
2671 if ((cast_type == RTN_BROADCAST) &&
2672 (card->info.broadcast_capable == 0))
2673 goto tx_drop;
2674
2675 if (card->options.performance_stats) {
2676 card->perf_stats.outbound_cnt++;
2677 card->perf_stats.outbound_start_time = qeth_get_micros();
2678 }
2679
683d718a
FB		 2680 if (skb_is_gso(skb))
2681 large_send = card->options.large_send;
64ef8957
FB		 2682 else
2683 if (skb->ip_summed == CHECKSUM_PARTIAL) {
2684 qeth_tx_csum(skb);
2685 if (card->options.performance_stats)
2686 card->perf_stats.tx_csum++;
2687 }
683d718a
FB		 2688
2689 if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
2690 (skb_shinfo(skb)->nr_frags == 0)) {
2691 new_skb = skb;
2692 data_offset = ETH_HLEN;
2693 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2694 if (!hdr)
2695 goto tx_drop;
2696 elements_needed++;
2697 } else {
2698 /* create a clone with writeable headroom */
2699 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2700 + VLAN_HLEN);
2701 if (!new_skb)
2702 goto tx_drop;
2703 }
4a71df50
FB		 2704
2705 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 2706 if (data_offset < 0)
2707 skb_pull(new_skb, ETH_HLEN);
4a71df50
FB		 2708 } else {
2709 if (new_skb->protocol == htons(ETH_P_IP)) {
2710 if (card->dev->type == ARPHRD_IEEE802_TR)
2711 skb_pull(new_skb, TR_HLEN);
2712 else
2713 skb_pull(new_skb, ETH_HLEN);
2714 }
2715
2716 if (new_skb->protocol == ETH_P_IPV6 && card->vlangrp &&
2717 vlan_tx_tag_present(new_skb)) {
2718 skb_push(new_skb, VLAN_HLEN);
2719 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2720 skb_copy_to_linear_data_offset(new_skb, 4,
2721 new_skb->data + 8, 4);
2722 skb_copy_to_linear_data_offset(new_skb, 8,
2723 new_skb->data + 12, 4);
2724 tag = (u16 *)(new_skb->data + 12);
2725 *tag = __constant_htons(ETH_P_8021Q);
2726 *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
2b4ff112 2727 new_skb->vlan_tci = 0;
4a71df50
FB		 2728 }
2729 }
2730
2731 netif_stop_queue(dev);
2732
4a71df50 2733 /* fix hardware limitation: as long as we do not have sbal
64ef8957 2734 * chaining we can not send long frag lists
4a71df50
FB		 2735 */
2736 if ((large_send == QETH_LARGE_SEND_TSO) &&
64ef8957
FB		 2737 ((skb_shinfo(new_skb)->nr_frags + 2) > 16)) {
2738 if (skb_linearize(new_skb))
2739 goto tx_drop;
2740 }
4a71df50
FB		 2741
2742 if ((large_send == QETH_LARGE_SEND_TSO) &&
2743 (cast_type == RTN_UNSPEC)) {
2744 hdr = (struct qeth_hdr *)skb_push(new_skb,
2745 sizeof(struct qeth_hdr_tso));
2746 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
2747 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2748 qeth_tso_fill_header(card, hdr, new_skb);
2749 elements_needed++;
2750 } else {
683d718a
FB		 2751 if (data_offset < 0) {
2752 hdr = (struct qeth_hdr *)skb_push(new_skb,
4a71df50 2753 sizeof(struct qeth_hdr));
683d718a
FB		 2754 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2755 cast_type);
2756 } else {
2757 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2758 cast_type);
2759 hdr->hdr.l3.length = new_skb->len - data_offset;
2760 }
4a71df50
FB		 2761 }
2762
64ef8957 2763 elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
4a71df50 2764 elements_needed);
64ef8957
FB		 2765 if (!elems) {
2766 if (data_offset >= 0)
2767 kmem_cache_free(qeth_core_header_cache, hdr);
2768 goto tx_drop;
f61a0d05 2769 }
64ef8957
FB		 2770 elements_needed += elems;
2771 nr_frags = skb_shinfo(new_skb)->nr_frags;
4a71df50
FB		 2772
2773 if (card->info.type != QETH_CARD_TYPE_IQD)
2774 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 2775 elements_needed);
4a71df50
FB		 2776 else
2777 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 2778 elements_needed, data_offset, 0);
4a71df50
FB		 2779
2780 if (!rc) {
2781 card->stats.tx_packets++;
2782 card->stats.tx_bytes += tx_bytes;
2783 if (new_skb != skb)
2784 dev_kfree_skb_any(skb);
2785 if (card->options.performance_stats) {
2786 if (large_send != QETH_LARGE_SEND_NO) {
2787 card->perf_stats.large_send_bytes += tx_bytes;
2788 card->perf_stats.large_send_cnt++;
2789 }
64ef8957 2790 if (nr_frags) {
4a71df50
FB		 2791 card->perf_stats.sg_skbs_sent++;
2792 /* nr_frags + skb->data */
64ef8957 2793 card->perf_stats.sg_frags_sent += nr_frags + 1;
4a71df50
FB		 2794 }
2795 }
4a71df50 2796 } else {
683d718a
FB		 2797 if (data_offset >= 0)
2798 kmem_cache_free(qeth_core_header_cache, hdr);
2799
4a71df50
FB		 2800 if (rc == -EBUSY) {
2801 if (new_skb != skb)
2802 dev_kfree_skb_any(new_skb);
2803 return NETDEV_TX_BUSY;
2804 } else
2805 goto tx_drop;
2806 }
2807
2808 netif_wake_queue(dev);
2809 if (card->options.performance_stats)
2810 card->perf_stats.outbound_time += qeth_get_micros() -
2811 card->perf_stats.outbound_start_time;
2812 return rc;
2813
2814tx_drop:
2815 card->stats.tx_dropped++;
2816 card->stats.tx_errors++;
2817 if ((new_skb != skb) && new_skb)
2818 dev_kfree_skb_any(new_skb);
2819 dev_kfree_skb_any(skb);
d0ec0f54 2820 netif_wake_queue(dev);
4a71df50
FB		 2821 return NETDEV_TX_OK;
2822}
2823
2824static int qeth_l3_open(struct net_device *dev)
2825{
509e2562 2826 struct qeth_card *card = dev->ml_priv;
4a71df50 2827
d11ba0c4 2828 QETH_DBF_TEXT(TRACE, 4, "qethopen");
4a71df50
FB		 2829 if (card->state != CARD_STATE_SOFTSETUP)
2830 return -ENODEV;
2831 card->data.state = CH_STATE_UP;
2832 card->state = CARD_STATE_UP;
4a71df50
FB		 2833 netif_start_queue(dev);
2834
2835 if (!card->lan_online && netif_carrier_ok(dev))
2836 netif_carrier_off(dev);
2837 return 0;
2838}
2839
2840static int qeth_l3_stop(struct net_device *dev)
2841{
509e2562 2842 struct qeth_card *card = dev->ml_priv;
4a71df50 2843
d11ba0c4 2844 QETH_DBF_TEXT(TRACE, 4, "qethstop");
4a71df50 2845 netif_tx_disable(dev);
4a71df50
FB		 2846 if (card->state == CARD_STATE_UP)
2847 card->state = CARD_STATE_SOFTSETUP;
2848 return 0;
2849}
2850
2851static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev)
2852{
509e2562 2853 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2854
2855 return (card->options.checksum_type == HW_CHECKSUMMING);
2856}
2857
2858static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data)
2859{
509e2562 2860 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2861 enum qeth_card_states old_state;
2862 enum qeth_checksum_types csum_type;
2863
2864 if ((card->state != CARD_STATE_UP) &&
2865 (card->state != CARD_STATE_DOWN))
2866 return -EPERM;
2867
2868 if (data)
2869 csum_type = HW_CHECKSUMMING;
2870 else
2871 csum_type = SW_CHECKSUMMING;
2872
2873 if (card->options.checksum_type != csum_type) {
2874 old_state = card->state;
2875 if (card->state == CARD_STATE_UP)
2876 __qeth_l3_set_offline(card->gdev, 1);
2877 card->options.checksum_type = csum_type;
2878 if (old_state == CARD_STATE_UP)
2879 __qeth_l3_set_online(card->gdev, 1);
2880 }
2881 return 0;
2882}
2883
2884static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data)
2885{
509e2562 2886 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2887
2888 if (data) {
2889 if (card->options.large_send == QETH_LARGE_SEND_NO) {
2890 if (card->info.type == QETH_CARD_TYPE_IQD)
64ef8957 2891 return -EPERM;
4a71df50
FB		 2892 else
2893 card->options.large_send = QETH_LARGE_SEND_TSO;
2894 dev->features |= NETIF_F_TSO;
2895 }
2896 } else {
2897 dev->features &= ~NETIF_F_TSO;
2898 card->options.large_send = QETH_LARGE_SEND_NO;
2899 }
2900 return 0;
2901}
2902
2903static struct ethtool_ops qeth_l3_ethtool_ops = {
2904 .get_link = ethtool_op_get_link,
2905 .get_tx_csum = ethtool_op_get_tx_csum,
2906 .set_tx_csum = ethtool_op_set_tx_hw_csum,
2907 .get_rx_csum = qeth_l3_ethtool_get_rx_csum,
2908 .set_rx_csum = qeth_l3_ethtool_set_rx_csum,
2909 .get_sg = ethtool_op_get_sg,
2910 .set_sg = ethtool_op_set_sg,
2911 .get_tso = ethtool_op_get_tso,
2912 .set_tso = qeth_l3_ethtool_set_tso,
2913 .get_strings = qeth_core_get_strings,
2914 .get_ethtool_stats = qeth_core_get_ethtool_stats,
2915 .get_stats_count = qeth_core_get_stats_count,
2916 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 2917 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 2918};
2919
2920/*
2921 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
2922 * NOARP on the netdevice is no option because it also turns off neighbor
2923 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
2924 * arp resolution but we want the hard header (packet socket will work
2925 * e.g. tcpdump)
2926 */
2927static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
2928{
2929 n->nud_state = NUD_NOARP;
2930 memcpy(n->ha, "FAKELL", 6);
2931 n->output = n->ops->connected_output;
2932 return 0;
2933}
2934
2935static int
2936qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
2937{
2938 if (np->tbl->family == AF_INET)
2939 np->neigh_setup = qeth_l3_neigh_setup_noarp;
2940
2941 return 0;
2942}
2943
3d58cefd 2944static const struct net_device_ops qeth_l3_netdev_ops = {
8403b13c
FB		 2945 .ndo_open = qeth_l3_open,
2946 .ndo_stop = qeth_l3_stop,
2947 .ndo_get_stats = qeth_get_stats,
2948 .ndo_start_xmit = qeth_l3_hard_start_xmit,
2949 .ndo_validate_addr = eth_validate_addr,
2950 .ndo_set_multicast_list = qeth_l3_set_multicast_list,
2951 .ndo_do_ioctl = qeth_l3_do_ioctl,
2952 .ndo_change_mtu = qeth_change_mtu,
2953 .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
2954 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
2955 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
2956 .ndo_tx_timeout = qeth_tx_timeout,
2957};
2958
3d58cefd
FB		 2959static const struct net_device_ops qeth_l3_osa_netdev_ops = {
2960 .ndo_open = qeth_l3_open,
2961 .ndo_stop = qeth_l3_stop,
2962 .ndo_get_stats = qeth_get_stats,
2963 .ndo_start_xmit = qeth_l3_hard_start_xmit,
2964 .ndo_validate_addr = eth_validate_addr,
2965 .ndo_set_multicast_list = qeth_l3_set_multicast_list,
2966 .ndo_do_ioctl = qeth_l3_do_ioctl,
2967 .ndo_change_mtu = qeth_change_mtu,
2968 .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
2969 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
2970 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
2971 .ndo_tx_timeout = qeth_tx_timeout,
2972 .ndo_neigh_setup = qeth_l3_neigh_setup,
2973};
2974
4a71df50
FB		 2975static int qeth_l3_setup_netdev(struct qeth_card *card)
2976{
2977 if (card->info.type == QETH_CARD_TYPE_OSAE) {
2978 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
2979 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
2980#ifdef CONFIG_TR
2981 card->dev = alloc_trdev(0);
2982#endif
2983 if (!card->dev)
2984 return -ENODEV;
3d58cefd 2985 card->dev->netdev_ops = &qeth_l3_netdev_ops;
4a71df50
FB		 2986 } else {
2987 card->dev = alloc_etherdev(0);
2988 if (!card->dev)
2989 return -ENODEV;
3d58cefd 2990 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
4a71df50
FB		 2991
2992 /*IPv6 address autoconfiguration stuff*/
2993 qeth_l3_get_unique_id(card);
2994 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
2995 card->dev->dev_id = card->info.unique_id &
2996 0xffff;
2997 }
2998 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
2999 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3000 if (!card->dev)
3001 return -ENODEV;
3002 card->dev->flags |= IFF_NOARP;
3d58cefd 3003 card->dev->netdev_ops = &qeth_l3_netdev_ops;
4a71df50
FB		 3004 qeth_l3_iqd_read_initial_mac(card);
3005 } else
3006 return -ENODEV;
3007
509e2562 3008 card->dev->ml_priv = card;
4a71df50 3009 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50
FB		 3010 card->dev->mtu = card->info.initial_mtu;
3011 SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
3012 card->dev->features |= NETIF_F_HW_VLAN_TX |
3013 NETIF_F_HW_VLAN_RX |
3014 NETIF_F_HW_VLAN_FILTER;
86d15cd8 3015 card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
4a71df50
FB		 3016
3017 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3018 return register_netdev(card->dev);
3019}
3020
3021static void qeth_l3_qdio_input_handler(struct ccw_device *ccwdev,
779e6e1c 3022 unsigned int qdio_err, unsigned int queue, int first_element,
4a71df50
FB		 3023 int count, unsigned long card_ptr)
3024{
3025 struct net_device *net_dev;
3026 struct qeth_card *card;
3027 struct qeth_qdio_buffer *buffer;
3028 int index;
3029 int i;
3030
4a71df50
FB		 3031 card = (struct qeth_card *) card_ptr;
3032 net_dev = card->dev;
3033 if (card->options.performance_stats) {
3034 card->perf_stats.inbound_cnt++;
3035 card->perf_stats.inbound_start_time = qeth_get_micros();
3036 }
779e6e1c
JG		 3037 if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
3038 QETH_DBF_TEXT(TRACE, 1, "qdinchk");
3039 QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
3040 QETH_DBF_TEXT_(TRACE, 1, "%04X%04X",
3041 first_element, count);
3042 QETH_DBF_TEXT_(TRACE, 1, "%04X", queue);
3043 qeth_schedule_recovery(card);
3044 return;
4a71df50
FB		 3045 }
3046 for (i = first_element; i < (first_element + count); ++i) {
3047 index = i % QDIO_MAX_BUFFERS_PER_Q;
3048 buffer = &card->qdio.in_q->bufs[index];
779e6e1c 3049 if (!(qdio_err &&
4a71df50 3050 qeth_check_qdio_errors(buffer->buffer,
779e6e1c 3051 qdio_err, "qinerr")))
4a71df50
FB		 3052 qeth_l3_process_inbound_buffer(card, buffer, index);
3053 /* clear buffer and give back to hardware */
3054 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
3055 qeth_queue_input_buffer(card, index);
3056 }
3057 if (card->options.performance_stats)
3058 card->perf_stats.inbound_time += qeth_get_micros() -
3059 card->perf_stats.inbound_start_time;
3060}
3061
3062static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3063{
3064 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3065
3066 qeth_l3_create_device_attributes(&gdev->dev);
3067 card->options.layer2 = 0;
3068 card->discipline.input_handler = (qdio_handler_t *)
3069 qeth_l3_qdio_input_handler;
3070 card->discipline.output_handler = (qdio_handler_t *)
3071 qeth_qdio_output_handler;
3072 card->discipline.recover = qeth_l3_recover;
3073 return 0;
3074}
3075
3076static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3077{
3078 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3079
f2148565 3080 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 3081 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3082
3083 if (cgdev->state == CCWGROUP_ONLINE) {
3084 card->use_hard_stop = 1;
3085 qeth_l3_set_offline(cgdev);
3086 }
3087
3088 if (card->dev) {
3089 unregister_netdev(card->dev);
3090 card->dev = NULL;
3091 }
3092
3093 qeth_l3_remove_device_attributes(&cgdev->dev);
3094 qeth_l3_clear_ip_list(card, 0, 0);
3095 qeth_l3_clear_ipato_list(card);
3096 return;
3097}
3098
3099static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3100{
3101 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3102 int rc = 0;
3103 enum qeth_card_states recover_flag;
3104
3105 BUG_ON(!card);
d11ba0c4
PT		 3106 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3107 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 3108
3109 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
4a71df50
FB		 3110
3111 recover_flag = card->state;
3112 rc = ccw_device_set_online(CARD_RDEV(card));
3113 if (rc) {
d11ba0c4 3114 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50
FB		 3115 return -EIO;
3116 }
3117 rc = ccw_device_set_online(CARD_WDEV(card));
3118 if (rc) {
d11ba0c4 3119 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50
FB		 3120 return -EIO;
3121 }
3122 rc = ccw_device_set_online(CARD_DDEV(card));
3123 if (rc) {
d11ba0c4 3124 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50
FB		 3125 return -EIO;
3126 }
3127
3128 rc = qeth_core_hardsetup_card(card);
3129 if (rc) {
d11ba0c4 3130 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
4a71df50
FB		 3131 goto out_remove;
3132 }
3133
3134 qeth_l3_query_ipassists(card, QETH_PROT_IPV4);
3135
3136 if (!card->dev && qeth_l3_setup_netdev(card))
3137 goto out_remove;
3138
3139 card->state = CARD_STATE_HARDSETUP;
3140 qeth_print_status_message(card);
3141
3142 /* softsetup */
d11ba0c4 3143 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 3144
3145 rc = qeth_send_startlan(card);
3146 if (rc) {
d11ba0c4 3147 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 3148 if (rc == 0xe080) {
74eacdb9
FB		 3149 dev_warn(&card->gdev->dev,
3150 "The LAN is offline\n");
4a71df50 3151 card->lan_online = 0;
f2148565 3152 return 0;
4a71df50 3153 }
f2148565 3154 goto out_remove;
4a71df50
FB		 3155 } else
3156 card->lan_online = 1;
3157 qeth_set_large_send(card, card->options.large_send);
3158
3159 rc = qeth_l3_setadapter_parms(card);
3160 if (rc)
d11ba0c4 3161 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
4a71df50
FB		 3162 rc = qeth_l3_start_ipassists(card);
3163 if (rc)
d11ba0c4 3164 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4a71df50
FB		 3165 rc = qeth_l3_setrouting_v4(card);
3166 if (rc)
d11ba0c4 3167 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
4a71df50
FB		 3168 rc = qeth_l3_setrouting_v6(card);
3169 if (rc)
d11ba0c4 3170 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
4a71df50
FB		 3171 netif_tx_disable(card->dev);
3172
3173 rc = qeth_init_qdio_queues(card);
3174 if (rc) {
d11ba0c4 3175 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
4a71df50
FB		 3176 goto out_remove;
3177 }
3178 card->state = CARD_STATE_SOFTSETUP;
3179 netif_carrier_on(card->dev);
3180
3181 qeth_set_allowed_threads(card, 0xffffffff, 0);
8af7c5ae
FB		 3182 if (recover_flag == CARD_STATE_RECOVER) {
3183 if (recovery_mode)
4a71df50 3184 qeth_l3_open(card->dev);
8af7c5ae
FB		 3185 else {
3186 rtnl_lock();
3187 dev_open(card->dev);
3188 rtnl_unlock();
3189 }
3190 qeth_l3_set_multicast_list(card->dev);
4a71df50
FB		 3191 }
3192 /* let user_space know that device is online */
3193 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3194 return 0;
3195out_remove:
3196 card->use_hard_stop = 1;
3197 qeth_l3_stop_card(card, 0);
3198 ccw_device_set_offline(CARD_DDEV(card));
3199 ccw_device_set_offline(CARD_WDEV(card));
3200 ccw_device_set_offline(CARD_RDEV(card));
3201 if (recover_flag == CARD_STATE_RECOVER)
3202 card->state = CARD_STATE_RECOVER;
3203 else
3204 card->state = CARD_STATE_DOWN;
3205 return -ENODEV;
3206}
3207
3208static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3209{
3210 return __qeth_l3_set_online(gdev, 0);
3211}
3212
3213static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3214 int recovery_mode)
3215{
3216 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3217 int rc = 0, rc2 = 0, rc3 = 0;
3218 enum qeth_card_states recover_flag;
3219
d11ba0c4
PT		 3220 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3221 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 3222
3223 if (card->dev && netif_carrier_ok(card->dev))
3224 netif_carrier_off(card->dev);
3225 recover_flag = card->state;
0f5623c9 3226 qeth_l3_stop_card(card, recovery_mode);
4a71df50
FB		 3227 rc = ccw_device_set_offline(CARD_DDEV(card));
3228 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3229 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3230 if (!rc)
3231 rc = (rc2) ? rc2 : rc3;
3232 if (rc)
d11ba0c4 3233 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50
FB		 3234 if (recover_flag == CARD_STATE_UP)
3235 card->state = CARD_STATE_RECOVER;
3236 /* let user_space know that device is offline */
3237 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3238 return 0;
3239}
3240
3241static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3242{
3243 return __qeth_l3_set_offline(cgdev, 0);
3244}
3245
3246static int qeth_l3_recover(void *ptr)
3247{
3248 struct qeth_card *card;
3249 int rc = 0;
3250
3251 card = (struct qeth_card *) ptr;
d11ba0c4
PT		 3252 QETH_DBF_TEXT(TRACE, 2, "recover1");
3253 QETH_DBF_HEX(TRACE, 2, &card, sizeof(void *));
4a71df50
FB		 3254 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3255 return 0;
d11ba0c4 3256 QETH_DBF_TEXT(TRACE, 2, "recover2");
74eacdb9
FB		 3257 dev_warn(&card->gdev->dev,
3258 "A recovery process has been started for the device\n");
4a71df50
FB		 3259 card->use_hard_stop = 1;
3260 __qeth_l3_set_offline(card->gdev, 1);
3261 rc = __qeth_l3_set_online(card->gdev, 1);
3262 /* don't run another scheduled recovery */
3263 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3264 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3265 if (!rc)
74eacdb9
FB		 3266 dev_info(&card->gdev->dev,
3267 "Device successfully recovered!\n");
28a7e4c9
UB		 3268 else {
3269 rtnl_lock();
3270 dev_close(card->dev);
3271 rtnl_unlock();
74eacdb9
FB		 3272 dev_warn(&card->gdev->dev, "The qeth device driver "
3273 "failed to recover an error on the device\n");
28a7e4c9 3274 }
4a71df50
FB		 3275 return 0;
3276}
3277
3278static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3279{
3280 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3281 qeth_l3_clear_ip_list(card, 0, 0);
3282 qeth_qdio_clear_card(card, 0);
3283 qeth_clear_qdio_buffers(card);
3284}
3285
3286struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3287 .probe = qeth_l3_probe_device,
3288 .remove = qeth_l3_remove_device,
3289 .set_online = qeth_l3_set_online,
3290 .set_offline = qeth_l3_set_offline,
3291 .shutdown = qeth_l3_shutdown,
3292};
3293EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3294
3295static int qeth_l3_ip_event(struct notifier_block *this,
76fef2b6 3296 unsigned long event, void *ptr)
4a71df50
FB		 3297{
3298 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3299 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3300 struct qeth_ipaddr *addr;
3301 struct qeth_card *card;
3302
c346dca1 3303 if (dev_net(dev) != &init_net)
76fef2b6
DM		 3304 return NOTIFY_DONE;
3305
d11ba0c4 3306 QETH_DBF_TEXT(TRACE, 3, "ipevent");
4a71df50
FB		 3307 card = qeth_l3_get_card_from_dev(dev);
3308 if (!card)
3309 return NOTIFY_DONE;
3310
3311 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3312 if (addr != NULL) {
3313 addr->u.a4.addr = ifa->ifa_address;
3314 addr->u.a4.mask = ifa->ifa_mask;
3315 addr->type = QETH_IP_TYPE_NORMAL;
3316 } else
3317 goto out;
3318
3319 switch (event) {
3320 case NETDEV_UP:
3321 if (!qeth_l3_add_ip(card, addr))
3322 kfree(addr);
3323 break;
3324 case NETDEV_DOWN:
3325 if (!qeth_l3_delete_ip(card, addr))
3326 kfree(addr);
3327 break;
3328 default:
3329 break;
3330 }
3331 qeth_l3_set_ip_addr_list(card);
3332out:
3333 return NOTIFY_DONE;
3334}
3335
3336static struct notifier_block qeth_l3_ip_notifier = {
3337 qeth_l3_ip_event,
3338 NULL,
3339};
3340
3341#ifdef CONFIG_QETH_IPV6
3342/**
3343 * IPv6 event handler
3344 */
3345static int qeth_l3_ip6_event(struct notifier_block *this,
76fef2b6 3346 unsigned long event, void *ptr)
4a71df50
FB		 3347{
3348 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3349 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3350 struct qeth_ipaddr *addr;
3351 struct qeth_card *card;
3352
d11ba0c4 3353 QETH_DBF_TEXT(TRACE, 3, "ip6event");
4a71df50
FB		 3354
3355 card = qeth_l3_get_card_from_dev(dev);
3356 if (!card)
3357 return NOTIFY_DONE;
3358 if (!qeth_is_supported(card, IPA_IPV6))
3359 return NOTIFY_DONE;
3360
3361 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3362 if (addr != NULL) {
3363 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3364 addr->u.a6.pfxlen = ifa->prefix_len;
3365 addr->type = QETH_IP_TYPE_NORMAL;
3366 } else
3367 goto out;
3368
3369 switch (event) {
3370 case NETDEV_UP:
3371 if (!qeth_l3_add_ip(card, addr))
3372 kfree(addr);
3373 break;
3374 case NETDEV_DOWN:
3375 if (!qeth_l3_delete_ip(card, addr))
3376 kfree(addr);
3377 break;
3378 default:
3379 break;
3380 }
3381 qeth_l3_set_ip_addr_list(card);
3382out:
3383 return NOTIFY_DONE;
3384}
3385
3386static struct notifier_block qeth_l3_ip6_notifier = {
3387 qeth_l3_ip6_event,
3388 NULL,
3389};
3390#endif
3391
3392static int qeth_l3_register_notifiers(void)
3393{
3394 int rc;
3395
d11ba0c4 3396 QETH_DBF_TEXT(TRACE, 5, "regnotif");
4a71df50
FB		 3397 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3398 if (rc)
3399 return rc;
3400#ifdef CONFIG_QETH_IPV6
3401 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3402 if (rc) {
3403 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3404 return rc;
3405 }
3406#else
74eacdb9 3407 pr_warning("There is no IPv6 support for the layer 3 discipline\n");
4a71df50
FB		 3408#endif
3409 return 0;
3410}
3411
3412static void qeth_l3_unregister_notifiers(void)
3413{
3414
d11ba0c4 3415 QETH_DBF_TEXT(TRACE, 5, "unregnot");
4a71df50
FB		 3416 BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3417#ifdef CONFIG_QETH_IPV6
3418 BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3419#endif /* QETH_IPV6 */
3420}
3421
3422static int __init qeth_l3_init(void)
3423{
3424 int rc = 0;
3425
74eacdb9 3426 pr_info("register layer 3 discipline\n");
4a71df50
FB		 3427 rc = qeth_l3_register_notifiers();
3428 return rc;
3429}
3430
3431static void __exit qeth_l3_exit(void)
3432{
3433 qeth_l3_unregister_notifiers();
74eacdb9 3434 pr_info("unregister layer 3 discipline\n");
4a71df50
FB		 3435}
3436
3437module_init(qeth_l3_init);
3438module_exit(qeth_l3_exit);
3439MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3440MODULE_DESCRIPTION("qeth layer 3 discipline");
3441MODULE_LICENSE("GPL");
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