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qlcnic: Bumped up version number to 5.0.18
[deliverable/linux.git] / drivers / s390 / net / qeth_l3_main.c
CommitLineData
4a71df50
FB		 1/*
2 * drivers/s390/net/qeth_l3_main.c
3 *
bbcfcdc8 4 * Copyright IBM Corp. 2007, 2009
4a71df50
FB		 5 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
6 * Frank Pavlic <fpavlic@de.ibm.com>,
7 * Thomas Spatzier <tspat@de.ibm.com>,
8 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 */
10
74eacdb9
FB		 11#define KMSG_COMPONENT "qeth"
12#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
13
4a71df50
FB		 14#include <linux/module.h>
15#include <linux/moduleparam.h>
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>
5a0e3ad6 25#include <linux/slab.h>
4a71df50
FB		 26
27#include <net/ip.h>
28#include <net/arp.h>
64ef8957 29#include <net/ip6_checksum.h>
4a71df50 30
4a71df50 31#include "qeth_l3.h"
4a71df50 32
d0ddf30f 33
4a71df50
FB		 34static int qeth_l3_set_offline(struct ccwgroup_device *);
35static int qeth_l3_recover(void *);
36static int qeth_l3_stop(struct net_device *);
37static void qeth_l3_set_multicast_list(struct net_device *);
38static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
39static int qeth_l3_register_addr_entry(struct qeth_card *,
40 struct qeth_ipaddr *);
41static int qeth_l3_deregister_addr_entry(struct qeth_card *,
42 struct qeth_ipaddr *);
43static int __qeth_l3_set_online(struct ccwgroup_device *, int);
44static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
45
4a71df50
FB		 46static int qeth_l3_isxdigit(char *buf)
47{
48 while (*buf) {
49 if (!isxdigit(*buf++))
50 return 0;
51 }
52 return 1;
53}
54
55void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
56{
57 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
58}
59
60int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
61{
62 int count = 0, rc = 0;
63 int in[4];
64 char c;
65
66 rc = sscanf(buf, "%u.%u.%u.%u%c",
67 &in[0], &in[1], &in[2], &in[3], &c);
68 if (rc != 4 && (rc != 5 || c != '\n'))
69 return -EINVAL;
70 for (count = 0; count < 4; count++) {
71 if (in[count] > 255)
72 return -EINVAL;
73 addr[count] = in[count];
74 }
75 return 0;
76}
77
78void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
79{
963a9fd2 80 sprintf(buf, "%pI6", addr);
4a71df50
FB		 81}
82
83int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
84{
85 const char *end, *end_tmp, *start;
86 __u16 *in;
87 char num[5];
88 int num2, cnt, out, found, save_cnt;
89 unsigned short in_tmp[8] = {0, };
90
91 cnt = out = found = save_cnt = num2 = 0;
92 end = start = buf;
93 in = (__u16 *) addr;
94 memset(in, 0, 16);
95 while (*end) {
96 end = strchr(start, ':');
97 if (end == NULL) {
98 end = buf + strlen(buf);
99 end_tmp = strchr(start, '\n');
100 if (end_tmp != NULL)
101 end = end_tmp;
102 out = 1;
103 }
104 if ((end - start)) {
105 memset(num, 0, 5);
106 if ((end - start) > 4)
107 return -EINVAL;
108 memcpy(num, start, end - start);
109 if (!qeth_l3_isxdigit(num))
110 return -EINVAL;
111 sscanf(start, "%x", &num2);
112 if (found)
113 in_tmp[save_cnt++] = num2;
114 else
115 in[cnt++] = num2;
116 if (out)
117 break;
118 } else {
119 if (found)
120 return -EINVAL;
121 found = 1;
122 }
123 start = ++end;
124 }
125 if (cnt + save_cnt > 8)
126 return -EINVAL;
127 cnt = 7;
128 while (save_cnt)
129 in[cnt--] = in_tmp[--save_cnt];
130 return 0;
131}
132
133void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
134 char *buf)
135{
136 if (proto == QETH_PROT_IPV4)
137 qeth_l3_ipaddr4_to_string(addr, buf);
138 else if (proto == QETH_PROT_IPV6)
139 qeth_l3_ipaddr6_to_string(addr, buf);
140}
141
142int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
143 __u8 *addr)
144{
145 if (proto == QETH_PROT_IPV4)
146 return qeth_l3_string_to_ipaddr4(buf, addr);
147 else if (proto == QETH_PROT_IPV6)
148 return qeth_l3_string_to_ipaddr6(buf, addr);
149 else
150 return -EINVAL;
151}
152
153static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
154{
155 int i, j;
156 u8 octet;
157
158 for (i = 0; i < len; ++i) {
159 octet = addr[i];
160 for (j = 7; j >= 0; --j) {
161 bits[i*8 + j] = octet & 1;
162 octet >>= 1;
163 }
164 }
165}
166
6298263a 167int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
4a71df50
FB		 168 struct qeth_ipaddr *addr)
169{
170 struct qeth_ipato_entry *ipatoe;
171 u8 addr_bits[128] = {0, };
172 u8 ipatoe_bits[128] = {0, };
173 int rc = 0;
174
175 if (!card->ipato.enabled)
176 return 0;
177
178 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
179 (addr->proto == QETH_PROT_IPV4)? 4:16);
180 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
181 if (addr->proto != ipatoe->proto)
182 continue;
183 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
184 (ipatoe->proto == QETH_PROT_IPV4) ?
185 4 : 16);
186 if (addr->proto == QETH_PROT_IPV4)
187 rc = !memcmp(addr_bits, ipatoe_bits,
188 min(32, ipatoe->mask_bits));
189 else
190 rc = !memcmp(addr_bits, ipatoe_bits,
191 min(128, ipatoe->mask_bits));
192 if (rc)
193 break;
194 }
195 /* invert? */
196 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
197 rc = !rc;
198 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
199 rc = !rc;
200
201 return rc;
202}
203
204/*
205 * Add IP to be added to todo list. If there is already an "add todo"
206 * in this list we just incremenent the reference count.
207 * Returns 0 if we just incremented reference count.
208 */
209static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
210 struct qeth_ipaddr *addr, int add)
211{
212 struct qeth_ipaddr *tmp, *t;
213 int found = 0;
214
76b11f8e
UB		 215 if (card->options.sniffer)
216 return 0;
4a71df50
FB		 217 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
218 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
219 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
220 return 0;
221 if ((tmp->proto == QETH_PROT_IPV4) &&
222 (addr->proto == QETH_PROT_IPV4) &&
223 (tmp->type == addr->type) &&
224 (tmp->is_multicast == addr->is_multicast) &&
225 (tmp->u.a4.addr == addr->u.a4.addr) &&
226 (tmp->u.a4.mask == addr->u.a4.mask)) {
227 found = 1;
228 break;
229 }
230 if ((tmp->proto == QETH_PROT_IPV6) &&
231 (addr->proto == QETH_PROT_IPV6) &&
232 (tmp->type == addr->type) &&
233 (tmp->is_multicast == addr->is_multicast) &&
234 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
235 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
236 sizeof(struct in6_addr)) == 0)) {
237 found = 1;
238 break;
239 }
240 }
241 if (found) {
242 if (addr->users != 0)
243 tmp->users += addr->users;
244 else
245 tmp->users += add ? 1 : -1;
246 if (tmp->users == 0) {
247 list_del(&tmp->entry);
248 kfree(tmp);
249 }
250 return 0;
251 } else {
252 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
253 list_add(&addr->entry, card->ip_tbd_list);
254 else {
255 if (addr->users == 0)
256 addr->users += add ? 1 : -1;
257 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
258 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
847a50fd 259 QETH_CARD_TEXT(card, 2, "tkovaddr");
4a71df50
FB		 260 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
261 }
262 list_add_tail(&addr->entry, card->ip_tbd_list);
263 }
264 return 1;
265 }
266}
267
268static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
269{
270 unsigned long flags;
271 int rc = 0;
272
847a50fd 273 QETH_CARD_TEXT(card, 4, "delip");
4a71df50
FB		 274
275 if (addr->proto == QETH_PROT_IPV4)
847a50fd 276 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
4a71df50 277 else {
847a50fd
CO		 278 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
279 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50
FB		 280 }
281 spin_lock_irqsave(&card->ip_lock, flags);
282 rc = __qeth_l3_insert_ip_todo(card, addr, 0);
283 spin_unlock_irqrestore(&card->ip_lock, flags);
284 return rc;
285}
286
287static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
288{
289 unsigned long flags;
290 int rc = 0;
291
847a50fd 292 QETH_CARD_TEXT(card, 4, "addip");
4a71df50 293 if (addr->proto == QETH_PROT_IPV4)
847a50fd 294 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
4a71df50 295 else {
847a50fd
CO		 296 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
297 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50
FB		 298 }
299 spin_lock_irqsave(&card->ip_lock, flags);
300 rc = __qeth_l3_insert_ip_todo(card, addr, 1);
301 spin_unlock_irqrestore(&card->ip_lock, flags);
302 return rc;
303}
304
305
306static struct qeth_ipaddr *qeth_l3_get_addr_buffer(
307 enum qeth_prot_versions prot)
308{
309 struct qeth_ipaddr *addr;
310
311 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
312 if (addr == NULL) {
4a71df50
FB		 313 return NULL;
314 }
315 addr->type = QETH_IP_TYPE_NORMAL;
316 addr->proto = prot;
317 return addr;
318}
319
320static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
321{
322 struct qeth_ipaddr *iptodo;
323 unsigned long flags;
324
847a50fd 325 QETH_CARD_TEXT(card, 4, "delmc");
4a71df50
FB		 326 iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
327 if (!iptodo) {
847a50fd 328 QETH_CARD_TEXT(card, 2, "dmcnomem");
4a71df50
FB		 329 return;
330 }
331 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
332 spin_lock_irqsave(&card->ip_lock, flags);
333 if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
334 kfree(iptodo);
335 spin_unlock_irqrestore(&card->ip_lock, flags);
336}
337
338/*
339 * Add/remove address to/from card's ip list, i.e. try to add or remove
340 * reference to/from an IP address that is already registered on the card.
341 * Returns:
342 * 0 address was on card and its reference count has been adjusted,
343 * but is still > 0, so nothing has to be done
344 * also returns 0 if card was not on card and the todo was to delete
345 * the address -> there is also nothing to be done
346 * 1 address was not on card and the todo is to add it to the card's ip
347 * list
348 * -1 address was on card and its reference count has been decremented
349 * to <= 0 by the todo -> address must be removed from card
350 */
351static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
352 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
353{
354 struct qeth_ipaddr *addr;
355 int found = 0;
356
357 list_for_each_entry(addr, &card->ip_list, entry) {
358 if ((addr->proto == QETH_PROT_IPV4) &&
359 (todo->proto == QETH_PROT_IPV4) &&
360 (addr->type == todo->type) &&
361 (addr->u.a4.addr == todo->u.a4.addr) &&
362 (addr->u.a4.mask == todo->u.a4.mask)) {
363 found = 1;
364 break;
365 }
366 if ((addr->proto == QETH_PROT_IPV6) &&
367 (todo->proto == QETH_PROT_IPV6) &&
368 (addr->type == todo->type) &&
369 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
370 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
371 sizeof(struct in6_addr)) == 0)) {
372 found = 1;
373 break;
374 }
375 }
376 if (found) {
377 addr->users += todo->users;
378 if (addr->users <= 0) {
379 *__addr = addr;
380 return -1;
381 } else {
382 /* for VIPA and RXIP limit refcount to 1 */
383 if (addr->type != QETH_IP_TYPE_NORMAL)
384 addr->users = 1;
385 return 0;
386 }
387 }
388 if (todo->users > 0) {
389 /* for VIPA and RXIP limit refcount to 1 */
390 if (todo->type != QETH_IP_TYPE_NORMAL)
391 todo->users = 1;
392 return 1;
393 } else
394 return 0;
395}
396
397static void __qeth_l3_delete_all_mc(struct qeth_card *card,
398 unsigned long *flags)
399{
2d921c32 400 struct list_head fail_list;
4a71df50
FB		 401 struct qeth_ipaddr *addr, *tmp;
402 int rc;
2d921c32
UB		 403
404 INIT_LIST_HEAD(&fail_list);
4a71df50
FB		 405again:
406 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
407 if (addr->is_multicast) {
408 list_del(&addr->entry);
409 spin_unlock_irqrestore(&card->ip_lock, *flags);
410 rc = qeth_l3_deregister_addr_entry(card, addr);
411 spin_lock_irqsave(&card->ip_lock, *flags);
2d921c32 412 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
4a71df50 413 kfree(addr);
2d921c32
UB		 414 else
415 list_add_tail(&addr->entry, &fail_list);
416 goto again;
4a71df50
FB		 417 }
418 }
2d921c32 419 list_splice(&fail_list, &card->ip_list);
4a71df50
FB		 420}
421
422static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
423{
424 struct list_head *tbd_list;
425 struct qeth_ipaddr *todo, *addr;
426 unsigned long flags;
427 int rc;
428
847a50fd
CO		 429 QETH_CARD_TEXT(card, 2, "sdiplist");
430 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
4a71df50 431
f154b79c
EL		 432 if ((card->state != CARD_STATE_UP &&
433 card->state != CARD_STATE_SOFTSETUP) || card->options.sniffer) {
76b11f8e 434 return;
f154b79c
EL		 435 }
436
4a71df50
FB		 437 spin_lock_irqsave(&card->ip_lock, flags);
438 tbd_list = card->ip_tbd_list;
439 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
440 if (!card->ip_tbd_list) {
847a50fd 441 QETH_CARD_TEXT(card, 0, "silnomem");
4a71df50
FB		 442 card->ip_tbd_list = tbd_list;
443 spin_unlock_irqrestore(&card->ip_lock, flags);
444 return;
445 } else
446 INIT_LIST_HEAD(card->ip_tbd_list);
447
448 while (!list_empty(tbd_list)) {
449 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
450 list_del(&todo->entry);
451 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
452 __qeth_l3_delete_all_mc(card, &flags);
453 kfree(todo);
454 continue;
455 }
456 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
457 if (rc == 0) {
458 /* nothing to be done; only adjusted refcount */
459 kfree(todo);
460 } else if (rc == 1) {
461 /* new entry to be added to on-card list */
462 spin_unlock_irqrestore(&card->ip_lock, flags);
463 rc = qeth_l3_register_addr_entry(card, todo);
464 spin_lock_irqsave(&card->ip_lock, flags);
3caa4af8 465 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
4a71df50
FB		 466 list_add_tail(&todo->entry, &card->ip_list);
467 else
468 kfree(todo);
469 } else if (rc == -1) {
470 /* on-card entry to be removed */
471 list_del_init(&addr->entry);
472 spin_unlock_irqrestore(&card->ip_lock, flags);
473 rc = qeth_l3_deregister_addr_entry(card, addr);
474 spin_lock_irqsave(&card->ip_lock, flags);
76b11f8e 475 if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
4a71df50
FB		 476 kfree(addr);
477 else
478 list_add_tail(&addr->entry, &card->ip_list);
479 kfree(todo);
480 }
481 }
482 spin_unlock_irqrestore(&card->ip_lock, flags);
483 kfree(tbd_list);
484}
485
70919e23 486static void qeth_l3_clear_ip_list(struct qeth_card *card, int recover)
4a71df50
FB		 487{
488 struct qeth_ipaddr *addr, *tmp;
489 unsigned long flags;
490
847a50fd 491 QETH_CARD_TEXT(card, 4, "clearip");
76b11f8e
UB		 492 if (recover && card->options.sniffer)
493 return;
4a71df50
FB		 494 spin_lock_irqsave(&card->ip_lock, flags);
495 /* clear todo list */
496 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
497 list_del(&addr->entry);
498 kfree(addr);
499 }
500
501 while (!list_empty(&card->ip_list)) {
502 addr = list_entry(card->ip_list.next,
503 struct qeth_ipaddr, entry);
504 list_del_init(&addr->entry);
4a71df50
FB		 505 if (!recover || addr->is_multicast) {
506 kfree(addr);
507 continue;
508 }
509 list_add_tail(&addr->entry, card->ip_tbd_list);
510 }
511 spin_unlock_irqrestore(&card->ip_lock, flags);
512}
513
514static int qeth_l3_address_exists_in_list(struct list_head *list,
515 struct qeth_ipaddr *addr, int same_type)
516{
517 struct qeth_ipaddr *tmp;
518
519 list_for_each_entry(tmp, list, entry) {
520 if ((tmp->proto == QETH_PROT_IPV4) &&
521 (addr->proto == QETH_PROT_IPV4) &&
522 ((same_type && (tmp->type == addr->type)) ||
523 (!same_type && (tmp->type != addr->type))) &&
524 (tmp->u.a4.addr == addr->u.a4.addr))
525 return 1;
526
527 if ((tmp->proto == QETH_PROT_IPV6) &&
528 (addr->proto == QETH_PROT_IPV6) &&
529 ((same_type && (tmp->type == addr->type)) ||
530 (!same_type && (tmp->type != addr->type))) &&
531 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
532 sizeof(struct in6_addr)) == 0))
533 return 1;
534
535 }
536 return 0;
537}
538
539static int qeth_l3_send_setdelmc(struct qeth_card *card,
540 struct qeth_ipaddr *addr, int ipacmd)
541{
542 int rc;
543 struct qeth_cmd_buffer *iob;
544 struct qeth_ipa_cmd *cmd;
545
847a50fd 546 QETH_CARD_TEXT(card, 4, "setdelmc");
4a71df50
FB		 547
548 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
549 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
550 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
551 if (addr->proto == QETH_PROT_IPV6)
552 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
553 sizeof(struct in6_addr));
554 else
555 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
556
557 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
558
559 return rc;
560}
561
562static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
563{
564 int i, j;
565 for (i = 0; i < 16; i++) {
566 j = (len) - (i * 8);
567 if (j >= 8)
568 netmask[i] = 0xff;
569 else if (j > 0)
570 netmask[i] = (u8)(0xFF00 >> j);
571 else
572 netmask[i] = 0;
573 }
574}
575
576static int qeth_l3_send_setdelip(struct qeth_card *card,
577 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
578{
579 int rc;
580 struct qeth_cmd_buffer *iob;
581 struct qeth_ipa_cmd *cmd;
582 __u8 netmask[16];
583
847a50fd
CO		 584 QETH_CARD_TEXT(card, 4, "setdelip");
585 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
4a71df50
FB		 586
587 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
588 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
589 if (addr->proto == QETH_PROT_IPV6) {
590 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
591 sizeof(struct in6_addr));
592 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
593 memcpy(cmd->data.setdelip6.mask, netmask,
594 sizeof(struct in6_addr));
595 cmd->data.setdelip6.flags = flags;
596 } else {
597 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
598 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
599 cmd->data.setdelip4.flags = flags;
600 }
601
602 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
603
604 return rc;
605}
606
607static int qeth_l3_send_setrouting(struct qeth_card *card,
608 enum qeth_routing_types type, enum qeth_prot_versions prot)
609{
610 int rc;
611 struct qeth_ipa_cmd *cmd;
612 struct qeth_cmd_buffer *iob;
613
847a50fd 614 QETH_CARD_TEXT(card, 4, "setroutg");
4a71df50
FB		 615 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
616 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
617 cmd->data.setrtg.type = (type);
618 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
619
620 return rc;
621}
622
623static void qeth_l3_correct_routing_type(struct qeth_card *card,
624 enum qeth_routing_types *type, enum qeth_prot_versions prot)
625{
626 if (card->info.type == QETH_CARD_TYPE_IQD) {
627 switch (*type) {
628 case NO_ROUTER:
629 case PRIMARY_CONNECTOR:
630 case SECONDARY_CONNECTOR:
631 case MULTICAST_ROUTER:
632 return;
633 default:
634 goto out_inval;
635 }
636 } else {
637 switch (*type) {
638 case NO_ROUTER:
639 case PRIMARY_ROUTER:
640 case SECONDARY_ROUTER:
641 return;
642 case MULTICAST_ROUTER:
643 if (qeth_is_ipafunc_supported(card, prot,
644 IPA_OSA_MC_ROUTER))
645 return;
646 default:
647 goto out_inval;
648 }
649 }
650out_inval:
4a71df50
FB		 651 *type = NO_ROUTER;
652}
653
654int qeth_l3_setrouting_v4(struct qeth_card *card)
655{
656 int rc;
657
847a50fd 658 QETH_CARD_TEXT(card, 3, "setrtg4");
4a71df50
FB		 659
660 qeth_l3_correct_routing_type(card, &card->options.route4.type,
661 QETH_PROT_IPV4);
662
663 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
664 QETH_PROT_IPV4);
665 if (rc) {
666 card->options.route4.type = NO_ROUTER;
14cc21b6
FB		 667 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
668 " on %s. Type set to 'no router'.\n", rc,
669 QETH_CARD_IFNAME(card));
4a71df50
FB		 670 }
671 return rc;
672}
673
674int qeth_l3_setrouting_v6(struct qeth_card *card)
675{
676 int rc = 0;
677
847a50fd 678 QETH_CARD_TEXT(card, 3, "setrtg6");
4a71df50
FB		 679#ifdef CONFIG_QETH_IPV6
680
681 if (!qeth_is_supported(card, IPA_IPV6))
682 return 0;
683 qeth_l3_correct_routing_type(card, &card->options.route6.type,
684 QETH_PROT_IPV6);
685
686 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
687 QETH_PROT_IPV6);
688 if (rc) {
689 card->options.route6.type = NO_ROUTER;
14cc21b6
FB		 690 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
691 " on %s. Type set to 'no router'.\n", rc,
692 QETH_CARD_IFNAME(card));
4a71df50
FB		 693 }
694#endif
695 return rc;
696}
697
698/*
699 * IP address takeover related functions
700 */
701static void qeth_l3_clear_ipato_list(struct qeth_card *card)
702{
703
704 struct qeth_ipato_entry *ipatoe, *tmp;
705 unsigned long flags;
706
707 spin_lock_irqsave(&card->ip_lock, flags);
708 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
709 list_del(&ipatoe->entry);
710 kfree(ipatoe);
711 }
712 spin_unlock_irqrestore(&card->ip_lock, flags);
713}
714
715int qeth_l3_add_ipato_entry(struct qeth_card *card,
716 struct qeth_ipato_entry *new)
717{
718 struct qeth_ipato_entry *ipatoe;
719 unsigned long flags;
720 int rc = 0;
721
847a50fd 722 QETH_CARD_TEXT(card, 2, "addipato");
4a71df50
FB		 723 spin_lock_irqsave(&card->ip_lock, flags);
724 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
725 if (ipatoe->proto != new->proto)
726 continue;
727 if (!memcmp(ipatoe->addr, new->addr,
728 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
729 (ipatoe->mask_bits == new->mask_bits)) {
4a71df50
FB		 730 rc = -EEXIST;
731 break;
732 }
733 }
734 if (!rc)
735 list_add_tail(&new->entry, &card->ipato.entries);
736
737 spin_unlock_irqrestore(&card->ip_lock, flags);
738 return rc;
739}
740
741void qeth_l3_del_ipato_entry(struct qeth_card *card,
742 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
743{
744 struct qeth_ipato_entry *ipatoe, *tmp;
745 unsigned long flags;
746
847a50fd 747 QETH_CARD_TEXT(card, 2, "delipato");
4a71df50
FB		 748 spin_lock_irqsave(&card->ip_lock, flags);
749 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
750 if (ipatoe->proto != proto)
751 continue;
752 if (!memcmp(ipatoe->addr, addr,
753 (proto == QETH_PROT_IPV4)? 4:16) &&
754 (ipatoe->mask_bits == mask_bits)) {
755 list_del(&ipatoe->entry);
756 kfree(ipatoe);
757 }
758 }
759 spin_unlock_irqrestore(&card->ip_lock, flags);
760}
761
762/*
763 * VIPA related functions
764 */
765int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
766 const u8 *addr)
767{
768 struct qeth_ipaddr *ipaddr;
769 unsigned long flags;
770 int rc = 0;
771
772 ipaddr = qeth_l3_get_addr_buffer(proto);
773 if (ipaddr) {
774 if (proto == QETH_PROT_IPV4) {
847a50fd 775 QETH_CARD_TEXT(card, 2, "addvipa4");
4a71df50
FB		 776 memcpy(&ipaddr->u.a4.addr, addr, 4);
777 ipaddr->u.a4.mask = 0;
778 } else if (proto == QETH_PROT_IPV6) {
847a50fd 779 QETH_CARD_TEXT(card, 2, "addvipa6");
4a71df50
FB		 780 memcpy(&ipaddr->u.a6.addr, addr, 16);
781 ipaddr->u.a6.pfxlen = 0;
782 }
783 ipaddr->type = QETH_IP_TYPE_VIPA;
784 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
785 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
786 } else
787 return -ENOMEM;
788 spin_lock_irqsave(&card->ip_lock, flags);
789 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
790 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
791 rc = -EEXIST;
792 spin_unlock_irqrestore(&card->ip_lock, flags);
793 if (rc) {
4a71df50
FB		 794 return rc;
795 }
796 if (!qeth_l3_add_ip(card, ipaddr))
797 kfree(ipaddr);
798 qeth_l3_set_ip_addr_list(card);
799 return rc;
800}
801
802void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
803 const u8 *addr)
804{
805 struct qeth_ipaddr *ipaddr;
806
807 ipaddr = qeth_l3_get_addr_buffer(proto);
808 if (ipaddr) {
809 if (proto == QETH_PROT_IPV4) {
847a50fd 810 QETH_CARD_TEXT(card, 2, "delvipa4");
4a71df50
FB		 811 memcpy(&ipaddr->u.a4.addr, addr, 4);
812 ipaddr->u.a4.mask = 0;
813 } else if (proto == QETH_PROT_IPV6) {
847a50fd 814 QETH_CARD_TEXT(card, 2, "delvipa6");
4a71df50
FB		 815 memcpy(&ipaddr->u.a6.addr, addr, 16);
816 ipaddr->u.a6.pfxlen = 0;
817 }
818 ipaddr->type = QETH_IP_TYPE_VIPA;
819 } else
820 return;
821 if (!qeth_l3_delete_ip(card, ipaddr))
822 kfree(ipaddr);
823 qeth_l3_set_ip_addr_list(card);
824}
825
826/*
827 * proxy ARP related functions
828 */
829int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
830 const u8 *addr)
831{
832 struct qeth_ipaddr *ipaddr;
833 unsigned long flags;
834 int rc = 0;
835
836 ipaddr = qeth_l3_get_addr_buffer(proto);
837 if (ipaddr) {
838 if (proto == QETH_PROT_IPV4) {
847a50fd 839 QETH_CARD_TEXT(card, 2, "addrxip4");
4a71df50
FB		 840 memcpy(&ipaddr->u.a4.addr, addr, 4);
841 ipaddr->u.a4.mask = 0;
842 } else if (proto == QETH_PROT_IPV6) {
847a50fd 843 QETH_CARD_TEXT(card, 2, "addrxip6");
4a71df50
FB		 844 memcpy(&ipaddr->u.a6.addr, addr, 16);
845 ipaddr->u.a6.pfxlen = 0;
846 }
847 ipaddr->type = QETH_IP_TYPE_RXIP;
848 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
849 ipaddr->del_flags = 0;
850 } else
851 return -ENOMEM;
852 spin_lock_irqsave(&card->ip_lock, flags);
853 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
854 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
855 rc = -EEXIST;
856 spin_unlock_irqrestore(&card->ip_lock, flags);
857 if (rc) {
4a71df50
FB		 858 return rc;
859 }
860 if (!qeth_l3_add_ip(card, ipaddr))
861 kfree(ipaddr);
862 qeth_l3_set_ip_addr_list(card);
863 return 0;
864}
865
866void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
867 const u8 *addr)
868{
869 struct qeth_ipaddr *ipaddr;
870
871 ipaddr = qeth_l3_get_addr_buffer(proto);
872 if (ipaddr) {
873 if (proto == QETH_PROT_IPV4) {
847a50fd 874 QETH_CARD_TEXT(card, 2, "addrxip4");
4a71df50
FB		 875 memcpy(&ipaddr->u.a4.addr, addr, 4);
876 ipaddr->u.a4.mask = 0;
877 } else if (proto == QETH_PROT_IPV6) {
847a50fd 878 QETH_CARD_TEXT(card, 2, "addrxip6");
4a71df50
FB		 879 memcpy(&ipaddr->u.a6.addr, addr, 16);
880 ipaddr->u.a6.pfxlen = 0;
881 }
882 ipaddr->type = QETH_IP_TYPE_RXIP;
883 } else
884 return;
885 if (!qeth_l3_delete_ip(card, ipaddr))
886 kfree(ipaddr);
887 qeth_l3_set_ip_addr_list(card);
888}
889
890static int qeth_l3_register_addr_entry(struct qeth_card *card,
891 struct qeth_ipaddr *addr)
892{
893 char buf[50];
894 int rc = 0;
895 int cnt = 3;
896
897 if (addr->proto == QETH_PROT_IPV4) {
847a50fd
CO		 898 QETH_CARD_TEXT(card, 2, "setaddr4");
899 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 900 } else if (addr->proto == QETH_PROT_IPV6) {
847a50fd
CO		 901 QETH_CARD_TEXT(card, 2, "setaddr6");
902 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
903 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 904 } else {
847a50fd
CO		 905 QETH_CARD_TEXT(card, 2, "setaddr?");
906 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 907 }
908 do {
909 if (addr->is_multicast)
910 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
911 else
912 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
913 addr->set_flags);
914 if (rc)
847a50fd 915 QETH_CARD_TEXT(card, 2, "failed");
4a71df50
FB		 916 } while ((--cnt > 0) && rc);
917 if (rc) {
847a50fd 918 QETH_CARD_TEXT(card, 2, "FAILED");
4a71df50 919 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
74eacdb9
FB		 920 dev_warn(&card->gdev->dev,
921 "Registering IP address %s failed\n", buf);
4a71df50
FB		 922 }
923 return rc;
924}
925
926static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
927 struct qeth_ipaddr *addr)
928{
929 int rc = 0;
930
931 if (addr->proto == QETH_PROT_IPV4) {
847a50fd
CO		 932 QETH_CARD_TEXT(card, 2, "deladdr4");
933 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 934 } else if (addr->proto == QETH_PROT_IPV6) {
847a50fd
CO		 935 QETH_CARD_TEXT(card, 2, "deladdr6");
936 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
937 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 938 } else {
847a50fd
CO		 939 QETH_CARD_TEXT(card, 2, "deladdr?");
940 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 941 }
942 if (addr->is_multicast)
943 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
944 else
945 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
946 addr->del_flags);
c4cef07c 947 if (rc)
847a50fd 948 QETH_CARD_TEXT(card, 2, "failed");
4a71df50
FB		 949
950 return rc;
951}
952
953static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
954{
955 if (cast_type == RTN_MULTICAST)
956 return QETH_CAST_MULTICAST;
957 if (cast_type == RTN_BROADCAST)
958 return QETH_CAST_BROADCAST;
959 return QETH_CAST_UNICAST;
960}
961
962static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
963{
964 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
965 if (cast_type == RTN_MULTICAST)
966 return ct | QETH_CAST_MULTICAST;
967 if (cast_type == RTN_ANYCAST)
968 return ct | QETH_CAST_ANYCAST;
969 if (cast_type == RTN_BROADCAST)
970 return ct | QETH_CAST_BROADCAST;
971 return ct | QETH_CAST_UNICAST;
972}
973
974static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
975 __u32 mode)
976{
977 int rc;
978 struct qeth_cmd_buffer *iob;
979 struct qeth_ipa_cmd *cmd;
980
847a50fd 981 QETH_CARD_TEXT(card, 4, "adpmode");
4a71df50
FB		 982
983 iob = qeth_get_adapter_cmd(card, command,
984 sizeof(struct qeth_ipacmd_setadpparms));
985 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
986 cmd->data.setadapterparms.data.mode = mode;
987 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
988 NULL);
989 return rc;
990}
991
992static int qeth_l3_setadapter_hstr(struct qeth_card *card)
993{
994 int rc;
995
847a50fd 996 QETH_CARD_TEXT(card, 4, "adphstr");
4a71df50
FB		 997
998 if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
999 rc = qeth_l3_send_setadp_mode(card,
1000 IPA_SETADP_SET_BROADCAST_MODE,
1001 card->options.broadcast_mode);
1002 if (rc)
14cc21b6 1003 QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
4a71df50
FB		 1004 "device %s: x%x\n",
1005 CARD_BUS_ID(card), rc);
1006 rc = qeth_l3_send_setadp_mode(card,
1007 IPA_SETADP_ALTER_MAC_ADDRESS,
1008 card->options.macaddr_mode);
1009 if (rc)
14cc21b6 1010 QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
4a71df50
FB		 1011 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1012 return rc;
1013 }
1014 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
14cc21b6 1015 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
4a71df50
FB		 1016 "to set broadcast mode, using ALLRINGS "
1017 "on device %s:\n", CARD_BUS_ID(card));
1018 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
14cc21b6 1019 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
4a71df50
FB		 1020 "to set macaddr mode, using NONCANONICAL "
1021 "on device %s:\n", CARD_BUS_ID(card));
1022 return 0;
1023}
1024
1025static int qeth_l3_setadapter_parms(struct qeth_card *card)
1026{
1027 int rc;
1028
d11ba0c4 1029 QETH_DBF_TEXT(SETUP, 2, "setadprm");
4a71df50
FB		 1030
1031 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
74eacdb9
FB		 1032 dev_info(&card->gdev->dev,
1033 "set adapter parameters not supported.\n");
d11ba0c4 1034 QETH_DBF_TEXT(SETUP, 2, " notsupp");
4a71df50
FB		 1035 return 0;
1036 }
1037 rc = qeth_query_setadapterparms(card);
1038 if (rc) {
74eacdb9 1039 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
7f6d95e7 1040 "0x%x\n", dev_name(&card->gdev->dev), rc);
4a71df50
FB		 1041 return rc;
1042 }
1043 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1044 rc = qeth_setadpparms_change_macaddr(card);
1045 if (rc)
74eacdb9 1046 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
6ea2fde1 1047 " address failed\n");
4a71df50
FB		 1048 }
1049
1050 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1051 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1052 rc = qeth_l3_setadapter_hstr(card);
1053
1054 return rc;
1055}
1056
1057static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1058 struct qeth_reply *reply, unsigned long data)
1059{
1060 struct qeth_ipa_cmd *cmd;
1061
847a50fd 1062 QETH_CARD_TEXT(card, 4, "defadpcb");
4a71df50
FB		 1063
1064 cmd = (struct qeth_ipa_cmd *) data;
1065 if (cmd->hdr.return_code == 0) {
1066 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1067 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1068 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1069 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1070 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1071 }
1072 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1073 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1074 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
847a50fd 1075 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
4a71df50 1076 }
f6b85b6c
FB		 1077 if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1078 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1079 card->info.tx_csum_mask =
1080 cmd->data.setassparms.data.flags_32bit;
847a50fd 1081 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
f6b85b6c
FB		 1082 }
1083
4a71df50
FB		 1084 return 0;
1085}
1086
1087static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1088 struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1089 __u16 len, enum qeth_prot_versions prot)
1090{
1091 struct qeth_cmd_buffer *iob;
1092 struct qeth_ipa_cmd *cmd;
1093
847a50fd 1094 QETH_CARD_TEXT(card, 4, "getasscm");
4a71df50
FB		 1095 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1096
1097 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1098 cmd->data.setassparms.hdr.assist_no = ipa_func;
1099 cmd->data.setassparms.hdr.length = 8 + len;
1100 cmd->data.setassparms.hdr.command_code = cmd_code;
1101 cmd->data.setassparms.hdr.return_code = 0;
1102 cmd->data.setassparms.hdr.seq_no = 0;
1103
1104 return iob;
1105}
1106
1107static int qeth_l3_send_setassparms(struct qeth_card *card,
1108 struct qeth_cmd_buffer *iob, __u16 len, long data,
1109 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1110 unsigned long),
1111 void *reply_param)
1112{
1113 int rc;
1114 struct qeth_ipa_cmd *cmd;
1115
847a50fd 1116 QETH_CARD_TEXT(card, 4, "sendassp");
4a71df50
FB		 1117
1118 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1119 if (len <= sizeof(__u32))
1120 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1121 else /* (len > sizeof(__u32)) */
1122 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1123
1124 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1125 return rc;
1126}
1127
1128#ifdef CONFIG_QETH_IPV6
1129static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1130 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1131{
1132 int rc;
1133 struct qeth_cmd_buffer *iob;
1134
847a50fd 1135 QETH_CARD_TEXT(card, 4, "simassp6");
4a71df50
FB		 1136 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1137 0, QETH_PROT_IPV6);
1138 rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1139 qeth_l3_default_setassparms_cb, NULL);
1140 return rc;
1141}
1142#endif
1143
1144static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1145 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1146{
1147 int rc;
1148 int length = 0;
1149 struct qeth_cmd_buffer *iob;
1150
847a50fd 1151 QETH_CARD_TEXT(card, 4, "simassp4");
4a71df50
FB		 1152 if (data)
1153 length = sizeof(__u32);
1154 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1155 length, QETH_PROT_IPV4);
1156 rc = qeth_l3_send_setassparms(card, iob, length, data,
1157 qeth_l3_default_setassparms_cb, NULL);
1158 return rc;
1159}
1160
1161static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1162{
1163 int rc;
1164
847a50fd 1165 QETH_CARD_TEXT(card, 3, "ipaarp");
4a71df50
FB		 1166
1167 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
74eacdb9
FB		 1168 dev_info(&card->gdev->dev,
1169 "ARP processing not supported on %s!\n",
1170 QETH_CARD_IFNAME(card));
4a71df50
FB		 1171 return 0;
1172 }
1173 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1174 IPA_CMD_ASS_START, 0);
1175 if (rc) {
74eacdb9
FB		 1176 dev_warn(&card->gdev->dev,
1177 "Starting ARP processing support for %s failed\n",
1178 QETH_CARD_IFNAME(card));
4a71df50
FB		 1179 }
1180 return rc;
1181}
1182
1183static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1184{
1185 int rc;
1186
847a50fd 1187 QETH_CARD_TEXT(card, 3, "ipaipfrg");
4a71df50
FB		 1188
1189 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
74eacdb9
FB		 1190 dev_info(&card->gdev->dev,
1191 "Hardware IP fragmentation not supported on %s\n",
1192 QETH_CARD_IFNAME(card));
4a71df50
FB		 1193 return -EOPNOTSUPP;
1194 }
1195
1196 rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1197 IPA_CMD_ASS_START, 0);
1198 if (rc) {
74eacdb9
FB		 1199 dev_warn(&card->gdev->dev,
1200 "Starting IP fragmentation support for %s failed\n",
1201 QETH_CARD_IFNAME(card));
4a71df50 1202 } else
74eacdb9
FB		 1203 dev_info(&card->gdev->dev,
1204 "Hardware IP fragmentation enabled \n");
4a71df50
FB		 1205 return rc;
1206}
1207
1208static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1209{
1210 int rc;
1211
847a50fd 1212 QETH_CARD_TEXT(card, 3, "stsrcmac");
4a71df50 1213
4a71df50 1214 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
74eacdb9 1215 dev_info(&card->gdev->dev,
fe94e2e0 1216 "Inbound source MAC-address not supported on %s\n",
74eacdb9 1217 QETH_CARD_IFNAME(card));
4a71df50
FB		 1218 return -EOPNOTSUPP;
1219 }
1220
1221 rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1222 IPA_CMD_ASS_START, 0);
1223 if (rc)
74eacdb9 1224 dev_warn(&card->gdev->dev,
fe94e2e0 1225 "Starting source MAC-address support for %s failed\n",
74eacdb9 1226 QETH_CARD_IFNAME(card));
4a71df50
FB		 1227 return rc;
1228}
1229
1230static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1231{
1232 int rc = 0;
1233
847a50fd 1234 QETH_CARD_TEXT(card, 3, "strtvlan");
4a71df50
FB		 1235
1236 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
74eacdb9
FB		 1237 dev_info(&card->gdev->dev,
1238 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1239 return -EOPNOTSUPP;
1240 }
1241
1242 rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1243 IPA_CMD_ASS_START, 0);
1244 if (rc) {
74eacdb9
FB		 1245 dev_warn(&card->gdev->dev,
1246 "Starting VLAN support for %s failed\n",
1247 QETH_CARD_IFNAME(card));
4a71df50 1248 } else {
74eacdb9 1249 dev_info(&card->gdev->dev, "VLAN enabled\n");
4a71df50
FB		 1250 }
1251 return rc;
1252}
1253
1254static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1255{
1256 int rc;
1257
847a50fd 1258 QETH_CARD_TEXT(card, 3, "stmcast");
4a71df50
FB		 1259
1260 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
74eacdb9
FB		 1261 dev_info(&card->gdev->dev,
1262 "Multicast not supported on %s\n",
1263 QETH_CARD_IFNAME(card));
4a71df50
FB		 1264 return -EOPNOTSUPP;
1265 }
1266
1267 rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1268 IPA_CMD_ASS_START, 0);
1269 if (rc) {
74eacdb9
FB		 1270 dev_warn(&card->gdev->dev,
1271 "Starting multicast support for %s failed\n",
1272 QETH_CARD_IFNAME(card));
4a71df50 1273 } else {
74eacdb9 1274 dev_info(&card->gdev->dev, "Multicast enabled\n");
4a71df50
FB		 1275 card->dev->flags |= IFF_MULTICAST;
1276 }
1277 return rc;
1278}
1279
1280static int qeth_l3_query_ipassists_cb(struct qeth_card *card,
1281 struct qeth_reply *reply, unsigned long data)
1282{
1283 struct qeth_ipa_cmd *cmd;
1284
d11ba0c4 1285 QETH_DBF_TEXT(SETUP, 2, "qipasscb");
4a71df50
FB		 1286
1287 cmd = (struct qeth_ipa_cmd *) data;
1288 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
1289 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
1290 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1291 } else {
1292 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
1293 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1294 }
d11ba0c4
PT		 1295 QETH_DBF_TEXT(SETUP, 2, "suppenbl");
1296 QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_supported);
1297 QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_enabled);
4a71df50
FB		 1298 return 0;
1299}
1300
1301static int qeth_l3_query_ipassists(struct qeth_card *card,
1302 enum qeth_prot_versions prot)
1303{
1304 int rc;
1305 struct qeth_cmd_buffer *iob;
1306
d11ba0c4 1307 QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
4a71df50
FB		 1308 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
1309 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_query_ipassists_cb, NULL);
1310 return rc;
1311}
1312
1313#ifdef CONFIG_QETH_IPV6
1314static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1315{
1316 int rc;
1317
847a50fd 1318 QETH_CARD_TEXT(card, 3, "softipv6");
4a71df50
FB		 1319
1320 if (card->info.type == QETH_CARD_TYPE_IQD)
1321 goto out;
1322
1323 rc = qeth_l3_query_ipassists(card, QETH_PROT_IPV6);
1324 if (rc) {
74eacdb9
FB		 1325 dev_err(&card->gdev->dev,
1326 "Activating IPv6 support for %s failed\n",
1327 QETH_CARD_IFNAME(card));
4a71df50
FB		 1328 return rc;
1329 }
1330 rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1331 IPA_CMD_ASS_START, 3);
1332 if (rc) {
74eacdb9
FB		 1333 dev_err(&card->gdev->dev,
1334 "Activating IPv6 support for %s failed\n",
1335 QETH_CARD_IFNAME(card));
4a71df50
FB		 1336 return rc;
1337 }
1338 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1339 IPA_CMD_ASS_START);
1340 if (rc) {
74eacdb9
FB		 1341 dev_err(&card->gdev->dev,
1342 "Activating IPv6 support for %s failed\n",
1343 QETH_CARD_IFNAME(card));
4a71df50
FB		 1344 return rc;
1345 }
1346 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1347 IPA_CMD_ASS_START);
1348 if (rc) {
74eacdb9
FB		 1349 dev_warn(&card->gdev->dev,
1350 "Enabling the passthrough mode for %s failed\n",
1351 QETH_CARD_IFNAME(card));
4a71df50
FB		 1352 return rc;
1353 }
1354out:
74eacdb9 1355 dev_info(&card->gdev->dev, "IPV6 enabled\n");
4a71df50
FB		 1356 return 0;
1357}
1358#endif
1359
1360static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1361{
1362 int rc = 0;
1363
847a50fd 1364 QETH_CARD_TEXT(card, 3, "strtipv6");
4a71df50
FB		 1365
1366 if (!qeth_is_supported(card, IPA_IPV6)) {
74eacdb9
FB		 1367 dev_info(&card->gdev->dev,
1368 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1369 return 0;
1370 }
1371#ifdef CONFIG_QETH_IPV6
1372 rc = qeth_l3_softsetup_ipv6(card);
1373#endif
1374 return rc ;
1375}
1376
1377static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1378{
1379 int rc;
1380
847a50fd 1381 QETH_CARD_TEXT(card, 3, "stbrdcst");
4a71df50
FB		 1382 card->info.broadcast_capable = 0;
1383 if (!qeth_is_supported(card, IPA_FILTERING)) {
74eacdb9
FB		 1384 dev_info(&card->gdev->dev,
1385 "Broadcast not supported on %s\n",
1386 QETH_CARD_IFNAME(card));
4a71df50
FB		 1387 rc = -EOPNOTSUPP;
1388 goto out;
1389 }
1390 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1391 IPA_CMD_ASS_START, 0);
1392 if (rc) {
74eacdb9
FB		 1393 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1394 "%s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1395 goto out;
1396 }
1397
1398 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1399 IPA_CMD_ASS_CONFIGURE, 1);
1400 if (rc) {
74eacdb9
FB		 1401 dev_warn(&card->gdev->dev,
1402 "Setting up broadcast filtering for %s failed\n",
1403 QETH_CARD_IFNAME(card));
4a71df50
FB		 1404 goto out;
1405 }
1406 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
74eacdb9 1407 dev_info(&card->gdev->dev, "Broadcast enabled\n");
4a71df50
FB		 1408 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1409 IPA_CMD_ASS_ENABLE, 1);
1410 if (rc) {
74eacdb9
FB		 1411 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1412 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1413 goto out;
1414 }
1415 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1416out:
1417 if (card->info.broadcast_capable)
1418 card->dev->flags |= IFF_BROADCAST;
1419 else
1420 card->dev->flags &= ~IFF_BROADCAST;
1421 return rc;
1422}
1423
1424static int qeth_l3_send_checksum_command(struct qeth_card *card)
1425{
1426 int rc;
1427
1428 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1429 IPA_CMD_ASS_START, 0);
1430 if (rc) {
74eacdb9
FB		 1431 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1432 "failed, using SW checksumming\n",
1433 QETH_CARD_IFNAME(card));
4a71df50
FB		 1434 return rc;
1435 }
1436 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1437 IPA_CMD_ASS_ENABLE,
1438 card->info.csum_mask);
1439 if (rc) {
74eacdb9
FB		 1440 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1441 "failed, using SW checksumming\n",
1442 QETH_CARD_IFNAME(card));
4a71df50
FB		 1443 return rc;
1444 }
1445 return 0;
1446}
1447
3fd434d8
FB		 1448int qeth_l3_set_rx_csum(struct qeth_card *card,
1449 enum qeth_checksum_types csum_type)
1450{
1451 int rc = 0;
1452
1453 if (card->options.checksum_type == HW_CHECKSUMMING) {
1454 if ((csum_type != HW_CHECKSUMMING) &&
1455 (card->state != CARD_STATE_DOWN)) {
1456 rc = qeth_l3_send_simple_setassparms(card,
1457 IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
1458 if (rc)
1459 return -EIO;
1460 }
6204b47e 1461 card->dev->features |= NETIF_F_RXCSUM;
3fd434d8
FB		 1462 } else {
1463 if (csum_type == HW_CHECKSUMMING) {
1464 if (card->state != CARD_STATE_DOWN) {
1465 if (!qeth_is_supported(card,
1466 IPA_INBOUND_CHECKSUM))
1467 return -EPERM;
1468 rc = qeth_l3_send_checksum_command(card);
1469 if (rc)
1470 return -EIO;
1471 }
1472 }
6204b47e 1473 card->dev->features &= ~NETIF_F_RXCSUM;
3fd434d8
FB		 1474 }
1475 card->options.checksum_type = csum_type;
1476 return rc;
1477}
1478
4a71df50
FB		 1479static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1480{
1481 int rc = 0;
1482
847a50fd 1483 QETH_CARD_TEXT(card, 3, "strtcsum");
4a71df50
FB		 1484
1485 if (card->options.checksum_type == NO_CHECKSUMMING) {
74eacdb9
FB		 1486 dev_info(&card->gdev->dev,
1487 "Using no checksumming on %s.\n",
1488 QETH_CARD_IFNAME(card));
4a71df50
FB		 1489 return 0;
1490 }
1491 if (card->options.checksum_type == SW_CHECKSUMMING) {
74eacdb9
FB		 1492 dev_info(&card->gdev->dev,
1493 "Using SW checksumming on %s.\n",
1494 QETH_CARD_IFNAME(card));
4a71df50
FB		 1495 return 0;
1496 }
1497 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
74eacdb9
FB		 1498 dev_info(&card->gdev->dev,
1499 "Inbound HW Checksumming not "
1500 "supported on %s,\ncontinuing "
1501 "using Inbound SW Checksumming\n",
1502 QETH_CARD_IFNAME(card));
4a71df50
FB		 1503 card->options.checksum_type = SW_CHECKSUMMING;
1504 return 0;
1505 }
1506 rc = qeth_l3_send_checksum_command(card);
1507 if (!rc)
74eacdb9
FB		 1508 dev_info(&card->gdev->dev,
1509 "HW Checksumming (inbound) enabled\n");
4a71df50
FB		 1510
1511 return rc;
1512}
1513
f6b85b6c
FB		 1514static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1515{
1516 int rc = 0;
1517
1518 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1519 return rc;
1520 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1521 IPA_CMD_ASS_START, 0);
1522 if (rc)
1523 goto err_out;
1524 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1525 IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
1526 if (rc)
1527 goto err_out;
1528 dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
1529 return rc;
1530err_out:
1531 dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
1532 "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
1533 return rc;
1534}
1535
4a71df50
FB		 1536static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1537{
1538 int rc;
1539
847a50fd 1540 QETH_CARD_TEXT(card, 3, "sttso");
4a71df50
FB		 1541
1542 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
74eacdb9
FB		 1543 dev_info(&card->gdev->dev,
1544 "Outbound TSO not supported on %s\n",
1545 QETH_CARD_IFNAME(card));
4a71df50
FB		 1546 rc = -EOPNOTSUPP;
1547 } else {
1548 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1549 IPA_CMD_ASS_START, 0);
1550 if (rc)
74eacdb9
FB		 1551 dev_warn(&card->gdev->dev, "Starting outbound TCP "
1552 "segmentation offload for %s failed\n",
1553 QETH_CARD_IFNAME(card));
4a71df50 1554 else
74eacdb9
FB		 1555 dev_info(&card->gdev->dev,
1556 "Outbound TSO enabled\n");
4a71df50 1557 }
6204b47e
MM		 1558 if (rc)
1559 card->dev->features &= ~NETIF_F_TSO;
4a71df50
FB		 1560 return rc;
1561}
1562
1563static int qeth_l3_start_ipassists(struct qeth_card *card)
1564{
847a50fd 1565 QETH_CARD_TEXT(card, 3, "strtipas");
d64ecc22
EL		 1566
1567 qeth_set_access_ctrl_online(card); /* go on*/
4a71df50
FB		 1568 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1569 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1570 qeth_l3_start_ipa_source_mac(card); /* go on*/
1571 qeth_l3_start_ipa_vlan(card); /* go on*/
1572 qeth_l3_start_ipa_multicast(card); /* go on*/
1573 qeth_l3_start_ipa_ipv6(card); /* go on*/
1574 qeth_l3_start_ipa_broadcast(card); /* go on*/
1575 qeth_l3_start_ipa_checksum(card); /* go on*/
f6b85b6c 1576 qeth_l3_start_ipa_tx_checksum(card);
4a71df50
FB		 1577 qeth_l3_start_ipa_tso(card); /* go on*/
1578 return 0;
1579}
1580
4a71df50
FB		 1581static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1582 struct qeth_reply *reply, unsigned long data)
1583{
1584 struct qeth_ipa_cmd *cmd;
1585
1586 cmd = (struct qeth_ipa_cmd *) data;
1587 if (cmd->hdr.return_code == 0)
1588 memcpy(card->dev->dev_addr,
1589 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1590 else
1591 random_ether_addr(card->dev->dev_addr);
1592
1593 return 0;
1594}
1595
1596static int qeth_l3_iqd_read_initial_mac(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, "hsrmac");
4a71df50
FB		 1603
1604 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1605 QETH_PROT_IPV6);
1606 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1607 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1608 card->info.unique_id;
1609
1610 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1611 NULL);
1612 return rc;
1613}
1614
1615static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1616 struct qeth_reply *reply, unsigned long data)
1617{
1618 struct qeth_ipa_cmd *cmd;
1619
1620 cmd = (struct qeth_ipa_cmd *) data;
1621 if (cmd->hdr.return_code == 0)
1622 card->info.unique_id = *((__u16 *)
1623 &cmd->data.create_destroy_addr.unique_id[6]);
1624 else {
1625 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1626 UNIQUE_ID_NOT_BY_CARD;
74eacdb9
FB		 1627 dev_warn(&card->gdev->dev, "The network adapter failed to "
1628 "generate a unique ID\n");
4a71df50
FB		 1629 }
1630 return 0;
1631}
1632
1633static int qeth_l3_get_unique_id(struct qeth_card *card)
1634{
1635 int rc = 0;
1636 struct qeth_cmd_buffer *iob;
1637 struct qeth_ipa_cmd *cmd;
1638
d11ba0c4 1639 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
4a71df50
FB		 1640
1641 if (!qeth_is_supported(card, IPA_IPV6)) {
1642 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1643 UNIQUE_ID_NOT_BY_CARD;
1644 return 0;
1645 }
1646
1647 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1648 QETH_PROT_IPV6);
1649 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1650 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1651 card->info.unique_id;
1652
1653 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1654 return rc;
1655}
1656
76b11f8e
UB		 1657static int
1658qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1659 unsigned long data)
1660{
1661 struct qeth_ipa_cmd *cmd;
1662 __u16 rc;
1663
1664 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1665
1666 cmd = (struct qeth_ipa_cmd *)data;
1667 rc = cmd->hdr.return_code;
a959189a 1668 if (rc)
847a50fd 1669 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
76b11f8e
UB		 1670 switch (cmd->data.diagass.action) {
1671 case QETH_DIAGS_CMD_TRACE_QUERY:
1672 break;
1673 case QETH_DIAGS_CMD_TRACE_DISABLE:
a959189a
UB		 1674 switch (rc) {
1675 case 0:
1676 case IPA_RC_INVALID_SUBCMD:
1677 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1678 dev_info(&card->gdev->dev, "The HiperSockets network "
1679 "traffic analyzer is deactivated\n");
1680 break;
1681 default:
1682 break;
1683 }
76b11f8e
UB		 1684 break;
1685 case QETH_DIAGS_CMD_TRACE_ENABLE:
a959189a
UB		 1686 switch (rc) {
1687 case 0:
1688 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1689 dev_info(&card->gdev->dev, "The HiperSockets network "
1690 "traffic analyzer is activated\n");
1691 break;
1692 case IPA_RC_HARDWARE_AUTH_ERROR:
1693 dev_warn(&card->gdev->dev, "The device is not "
1694 "authorized to run as a HiperSockets network "
1695 "traffic analyzer\n");
1696 break;
1697 case IPA_RC_TRACE_ALREADY_ACTIVE:
1698 dev_warn(&card->gdev->dev, "A HiperSockets "
1699 "network traffic analyzer is already "
1700 "active in the HiperSockets LAN\n");
1701 break;
1702 default:
1703 break;
1704 }
76b11f8e
UB		 1705 break;
1706 default:
1707 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1708 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1709 }
1710
1711 return 0;
1712}
1713
1714static int
1715qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1716{
1717 struct qeth_cmd_buffer *iob;
1718 struct qeth_ipa_cmd *cmd;
1719
1720 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1721
1722 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1723 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1724 cmd->data.diagass.subcmd_len = 16;
1725 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1726 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1727 cmd->data.diagass.action = diags_cmd;
1728 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1729}
1730
4a71df50
FB		 1731static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1732 struct net_device *dev)
1733{
1734 if (dev->type == ARPHRD_IEEE802_TR)
1735 ip_tr_mc_map(ipm, mac);
1736 else
1737 ip_eth_mc_map(ipm, mac);
1738}
1739
1740static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1741{
1742 struct qeth_ipaddr *ipm;
1743 struct ip_mc_list *im4;
1744 char buf[MAX_ADDR_LEN];
1745
847a50fd 1746 QETH_CARD_TEXT(card, 4, "addmc");
f3aa3136
SS		 1747 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1748 im4 = rcu_dereference(im4->next_rcu)) {
4a71df50
FB		 1749 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1750 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1751 if (!ipm)
1752 continue;
1753 ipm->u.a4.addr = im4->multiaddr;
1754 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1755 ipm->is_multicast = 1;
1756 if (!qeth_l3_add_ip(card, ipm))
1757 kfree(ipm);
1758 }
1759}
1760
1761static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1762{
1763 struct in_device *in_dev;
1764 struct vlan_group *vg;
1765 int i;
1766
847a50fd 1767 QETH_CARD_TEXT(card, 4, "addmcvl");
4a71df50
FB		 1768 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1769 return;
1770
1771 vg = card->vlangrp;
b738127d 1772 for (i = 0; i < VLAN_N_VID; i++) {
4a71df50
FB		 1773 struct net_device *netdev = vlan_group_get_device(vg, i);
1774 if (netdev == NULL ||
1775 !(netdev->flags & IFF_UP))
1776 continue;
1777 in_dev = in_dev_get(netdev);
1778 if (!in_dev)
1779 continue;
f3aa3136 1780 rcu_read_lock();
4a71df50 1781 qeth_l3_add_mc(card, in_dev);
f3aa3136 1782 rcu_read_unlock();
4a71df50
FB		 1783 in_dev_put(in_dev);
1784 }
1785}
1786
1787static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1788{
1789 struct in_device *in4_dev;
1790
847a50fd 1791 QETH_CARD_TEXT(card, 4, "chkmcv4");
4a71df50
FB		 1792 in4_dev = in_dev_get(card->dev);
1793 if (in4_dev == NULL)
1794 return;
f3aa3136 1795 rcu_read_lock();
4a71df50
FB		 1796 qeth_l3_add_mc(card, in4_dev);
1797 qeth_l3_add_vlan_mc(card);
f3aa3136 1798 rcu_read_unlock();
4a71df50
FB		 1799 in_dev_put(in4_dev);
1800}
1801
1802#ifdef CONFIG_QETH_IPV6
1803static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1804{
1805 struct qeth_ipaddr *ipm;
1806 struct ifmcaddr6 *im6;
1807 char buf[MAX_ADDR_LEN];
1808
847a50fd 1809 QETH_CARD_TEXT(card, 4, "addmc6");
4a71df50
FB		 1810 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1811 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1812 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1813 if (!ipm)
1814 continue;
1815 ipm->is_multicast = 1;
1816 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1817 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1818 sizeof(struct in6_addr));
1819 if (!qeth_l3_add_ip(card, ipm))
1820 kfree(ipm);
1821 }
1822}
1823
1824static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1825{
1826 struct inet6_dev *in_dev;
1827 struct vlan_group *vg;
1828 int i;
1829
847a50fd 1830 QETH_CARD_TEXT(card, 4, "admc6vl");
4a71df50
FB		 1831 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1832 return;
1833
1834 vg = card->vlangrp;
b738127d 1835 for (i = 0; i < VLAN_N_VID; i++) {
4a71df50
FB		 1836 struct net_device *netdev = vlan_group_get_device(vg, i);
1837 if (netdev == NULL ||
1838 !(netdev->flags & IFF_UP))
1839 continue;
1840 in_dev = in6_dev_get(netdev);
1841 if (!in_dev)
1842 continue;
1843 read_lock_bh(&in_dev->lock);
1844 qeth_l3_add_mc6(card, in_dev);
1845 read_unlock_bh(&in_dev->lock);
1846 in6_dev_put(in_dev);
1847 }
1848}
1849
1850static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1851{
1852 struct inet6_dev *in6_dev;
1853
847a50fd 1854 QETH_CARD_TEXT(card, 4, "chkmcv6");
4a71df50
FB		 1855 if (!qeth_is_supported(card, IPA_IPV6))
1856 return ;
1857 in6_dev = in6_dev_get(card->dev);
1858 if (in6_dev == NULL)
1859 return;
1860 read_lock_bh(&in6_dev->lock);
1861 qeth_l3_add_mc6(card, in6_dev);
1862 qeth_l3_add_vlan_mc6(card);
1863 read_unlock_bh(&in6_dev->lock);
1864 in6_dev_put(in6_dev);
1865}
1866#endif /* CONFIG_QETH_IPV6 */
1867
1868static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1869 unsigned short vid)
1870{
1871 struct in_device *in_dev;
1872 struct in_ifaddr *ifa;
1873 struct qeth_ipaddr *addr;
1874
847a50fd 1875 QETH_CARD_TEXT(card, 4, "frvaddr4");
4a71df50
FB		 1876
1877 in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
1878 if (!in_dev)
1879 return;
1880 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1881 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1882 if (addr) {
1883 addr->u.a4.addr = ifa->ifa_address;
1884 addr->u.a4.mask = ifa->ifa_mask;
1885 addr->type = QETH_IP_TYPE_NORMAL;
1886 if (!qeth_l3_delete_ip(card, addr))
1887 kfree(addr);
1888 }
1889 }
1890 in_dev_put(in_dev);
1891}
1892
1893static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1894 unsigned short vid)
1895{
1896#ifdef CONFIG_QETH_IPV6
1897 struct inet6_dev *in6_dev;
1898 struct inet6_ifaddr *ifa;
1899 struct qeth_ipaddr *addr;
1900
847a50fd 1901 QETH_CARD_TEXT(card, 4, "frvaddr6");
4a71df50
FB		 1902
1903 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1904 if (!in6_dev)
1905 return;
70f60a22 1906 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
4a71df50
FB		 1907 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1908 if (addr) {
1909 memcpy(&addr->u.a6.addr, &ifa->addr,
1910 sizeof(struct in6_addr));
1911 addr->u.a6.pfxlen = ifa->prefix_len;
1912 addr->type = QETH_IP_TYPE_NORMAL;
1913 if (!qeth_l3_delete_ip(card, addr))
1914 kfree(addr);
1915 }
1916 }
1917 in6_dev_put(in6_dev);
1918#endif /* CONFIG_QETH_IPV6 */
1919}
1920
1921static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1922 unsigned short vid)
1923{
1924 if (!card->vlangrp)
1925 return;
1926 qeth_l3_free_vlan_addresses4(card, vid);
1927 qeth_l3_free_vlan_addresses6(card, vid);
1928}
1929
1930static void qeth_l3_vlan_rx_register(struct net_device *dev,
1931 struct vlan_group *grp)
1932{
509e2562 1933 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 1934 unsigned long flags;
1935
847a50fd 1936 QETH_CARD_TEXT(card, 4, "vlanreg");
4a71df50
FB		 1937 spin_lock_irqsave(&card->vlanlock, flags);
1938 card->vlangrp = grp;
1939 spin_unlock_irqrestore(&card->vlanlock, flags);
1940}
1941
1942static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
1943{
4a71df50
FB		 1944 return;
1945}
1946
1947static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
1948{
509e2562 1949 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 1950 unsigned long flags;
1951
847a50fd 1952 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
8e98ac48 1953 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 1954 QETH_CARD_TEXT(card, 3, "kidREC");
8e98ac48
UB		 1955 return;
1956 }
4a71df50
FB		 1957 spin_lock_irqsave(&card->vlanlock, flags);
1958 /* unregister IP addresses of vlan device */
1959 qeth_l3_free_vlan_addresses(card, vid);
1960 vlan_group_set_device(card->vlangrp, vid, NULL);
1961 spin_unlock_irqrestore(&card->vlanlock, flags);
1962 qeth_l3_set_multicast_list(card->dev);
1963}
1964
10651db7
UB		 1965static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1966 struct sk_buff *skb, struct qeth_hdr *hdr,
1967 unsigned short *vlan_id)
4a71df50 1968{
4a71df50
FB		 1969 __be16 prot;
1970 struct iphdr *ip_hdr;
1971 unsigned char tg_addr[MAX_ADDR_LEN];
10651db7 1972 int is_vlan = 0;
4a71df50
FB		 1973
1974 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1975 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1976 ETH_P_IP);
1977 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1978 case QETH_CAST_MULTICAST:
1979 switch (prot) {
1980#ifdef CONFIG_QETH_IPV6
1981 case __constant_htons(ETH_P_IPV6):
1982 ndisc_mc_map((struct in6_addr *)
1983 skb->data + 24,
1984 tg_addr, card->dev, 0);
1985 break;
1986#endif
1987 case __constant_htons(ETH_P_IP):
1988 ip_hdr = (struct iphdr *)skb->data;
1989 (card->dev->type == ARPHRD_IEEE802_TR) ?
1990 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
1991 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1992 break;
1993 default:
1994 memcpy(tg_addr, card->dev->broadcast,
1995 card->dev->addr_len);
1996 }
1997 card->stats.multicast++;
1998 skb->pkt_type = PACKET_MULTICAST;
1999 break;
2000 case QETH_CAST_BROADCAST:
2001 memcpy(tg_addr, card->dev->broadcast,
2002 card->dev->addr_len);
2003 card->stats.multicast++;
2004 skb->pkt_type = PACKET_BROADCAST;
2005 break;
2006 case QETH_CAST_UNICAST:
2007 case QETH_CAST_ANYCAST:
2008 case QETH_CAST_NOCAST:
2009 default:
76b11f8e
UB		 2010 if (card->options.sniffer)
2011 skb->pkt_type = PACKET_OTHERHOST;
2012 else
2013 skb->pkt_type = PACKET_HOST;
4a71df50
FB		 2014 memcpy(tg_addr, card->dev->dev_addr,
2015 card->dev->addr_len);
2016 }
fe94e2e0
UB		 2017 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2018 card->dev->header_ops->create(skb, card->dev, prot,
2019 tg_addr, &hdr->hdr.l3.dest_addr[2],
2020 card->dev->addr_len);
2021 else
2022 card->dev->header_ops->create(skb, card->dev, prot,
2023 tg_addr, "FAKELL", card->dev->addr_len);
4a71df50
FB		 2024 }
2025
2026#ifdef CONFIG_TR
2027 if (card->dev->type == ARPHRD_IEEE802_TR)
2028 skb->protocol = tr_type_trans(skb, card->dev);
2029 else
2030#endif
2031 skb->protocol = eth_type_trans(skb, card->dev);
2032
2033 if (hdr->hdr.l3.ext_flags &
2034 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
10651db7 2035 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
4a71df50 2036 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
10651db7 2037 is_vlan = 1;
4a71df50
FB		 2038 }
2039
b9139800
UB		 2040 switch (card->options.checksum_type) {
2041 case SW_CHECKSUMMING:
2042 skb->ip_summed = CHECKSUM_NONE;
2043 break;
2044 case NO_CHECKSUMMING:
2045 skb->ip_summed = CHECKSUM_UNNECESSARY;
2046 break;
2047 case HW_CHECKSUMMING:
4a71df50 2048 if ((hdr->hdr.l3.ext_flags &
b9139800
UB		 2049 (QETH_HDR_EXT_CSUM_HDR_REQ |
2050 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2051 (QETH_HDR_EXT_CSUM_HDR_REQ |
2052 QETH_HDR_EXT_CSUM_TRANSP_REQ))
4a71df50
FB		 2053 skb->ip_summed = CHECKSUM_UNNECESSARY;
2054 else
b9139800 2055 skb->ip_summed = CHECKSUM_NONE;
4a71df50
FB		 2056 }
2057
10651db7 2058 return is_vlan;
4a71df50
FB		 2059}
2060
a1c3ed4c
FB		 2061static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
2062 int budget, int *done)
4a71df50 2063{
a1c3ed4c 2064 int work_done = 0;
4a71df50
FB		 2065 struct sk_buff *skb;
2066 struct qeth_hdr *hdr;
4a71df50 2067 __u16 vlan_tag = 0;
10651db7 2068 int is_vlan;
4a71df50 2069 unsigned int len;
4a71df50 2070
a1c3ed4c
FB		 2071 *done = 0;
2072 BUG_ON(!budget);
2073 while (budget) {
2074 skb = qeth_core_get_next_skb(card,
2075 card->qdio.in_q->bufs[card->rx.b_index].buffer,
2076 &card->rx.b_element, &card->rx.e_offset, &hdr);
2077 if (!skb) {
2078 *done = 1;
2079 break;
2080 }
2081 skb->dev = card->dev;
4a71df50
FB		 2082 switch (hdr->hdr.l3.id) {
2083 case QETH_HEADER_TYPE_LAYER3:
10651db7
UB		 2084 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
2085 &vlan_tag);
4a71df50 2086 len = skb->len;
10651db7
UB		 2087 if (is_vlan && !card->options.sniffer)
2088 vlan_gro_receive(&card->napi, card->vlangrp,
2089 vlan_tag, skb);
4a71df50 2090 else
a1c3ed4c 2091 napi_gro_receive(&card->napi, skb);
4a71df50 2092 break;
76b11f8e
UB		 2093 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
2094 skb->pkt_type = PACKET_HOST;
2095 skb->protocol = eth_type_trans(skb, skb->dev);
76b11f8e
UB		 2096 len = skb->len;
2097 netif_receive_skb(skb);
2098 break;
4a71df50
FB		 2099 default:
2100 dev_kfree_skb_any(skb);
847a50fd 2101 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 2102 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 2103 continue;
2104 }
a1c3ed4c
FB		 2105 work_done++;
2106 budget--;
4a71df50
FB		 2107 card->stats.rx_packets++;
2108 card->stats.rx_bytes += len;
2109 }
a1c3ed4c
FB		 2110 return work_done;
2111}
2112
2113static int qeth_l3_poll(struct napi_struct *napi, int budget)
2114{
2115 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
2116 int work_done = 0;
2117 struct qeth_qdio_buffer *buffer;
2118 int done;
2119 int new_budget = budget;
2120
2121 if (card->options.performance_stats) {
2122 card->perf_stats.inbound_cnt++;
2123 card->perf_stats.inbound_start_time = qeth_get_micros();
2124 }
2125
2126 while (1) {
2127 if (!card->rx.b_count) {
2128 card->rx.qdio_err = 0;
2129 card->rx.b_count = qdio_get_next_buffers(
2130 card->data.ccwdev, 0, &card->rx.b_index,
2131 &card->rx.qdio_err);
2132 if (card->rx.b_count <= 0) {
2133 card->rx.b_count = 0;
2134 break;
2135 }
2136 card->rx.b_element =
2137 &card->qdio.in_q->bufs[card->rx.b_index]
2138 .buffer->element[0];
2139 card->rx.e_offset = 0;
2140 }
2141
2142 while (card->rx.b_count) {
2143 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
2144 if (!(card->rx.qdio_err &&
2145 qeth_check_qdio_errors(card, buffer->buffer,
2146 card->rx.qdio_err, "qinerr")))
2147 work_done += qeth_l3_process_inbound_buffer(
2148 card, new_budget, &done);
2149 else
2150 done = 1;
2151
2152 if (done) {
2153 if (card->options.performance_stats)
2154 card->perf_stats.bufs_rec++;
2155 qeth_put_buffer_pool_entry(card,
2156 buffer->pool_entry);
2157 qeth_queue_input_buffer(card, card->rx.b_index);
2158 card->rx.b_count--;
2159 if (card->rx.b_count) {
2160 card->rx.b_index =
2161 (card->rx.b_index + 1) %
2162 QDIO_MAX_BUFFERS_PER_Q;
2163 card->rx.b_element =
2164 &card->qdio.in_q
2165 ->bufs[card->rx.b_index]
2166 .buffer->element[0];
2167 card->rx.e_offset = 0;
2168 }
2169 }
2170
2171 if (work_done >= budget)
2172 goto out;
2173 else
2174 new_budget = budget - work_done;
2175 }
2176 }
2177
2178 napi_complete(napi);
2179 if (qdio_start_irq(card->data.ccwdev, 0))
2180 napi_schedule(&card->napi);
2181out:
2182 if (card->options.performance_stats)
2183 card->perf_stats.inbound_time += qeth_get_micros() -
2184 card->perf_stats.inbound_start_time;
2185 return work_done;
4a71df50
FB		 2186}
2187
2188static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2189 struct qeth_card *card)
2190{
2191 int rc = 0;
2192 struct vlan_group *vg;
2193 int i;
2194
2195 vg = card->vlangrp;
2196 if (!vg)
2197 return rc;
2198
b738127d 2199 for (i = 0; i < VLAN_N_VID; i++) {
4a71df50
FB		 2200 if (vlan_group_get_device(vg, i) == dev) {
2201 rc = QETH_VLAN_CARD;
2202 break;
2203 }
2204 }
2205
509e2562 2206 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
4a71df50
FB		 2207 return 0;
2208
2209 return rc;
2210}
2211
2212static int qeth_l3_verify_dev(struct net_device *dev)
2213{
2214 struct qeth_card *card;
2215 unsigned long flags;
2216 int rc = 0;
2217
2218 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2219 list_for_each_entry(card, &qeth_core_card_list.list, list) {
2220 if (card->dev == dev) {
2221 rc = QETH_REAL_CARD;
2222 break;
2223 }
2224 rc = qeth_l3_verify_vlan_dev(dev, card);
2225 if (rc)
2226 break;
2227 }
2228 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2229
2230 return rc;
2231}
2232
2233static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2234{
2235 struct qeth_card *card = NULL;
2236 int rc;
2237
2238 rc = qeth_l3_verify_dev(dev);
2239 if (rc == QETH_REAL_CARD)
509e2562 2240 card = dev->ml_priv;
4a71df50 2241 else if (rc == QETH_VLAN_CARD)
509e2562 2242 card = vlan_dev_real_dev(dev)->ml_priv;
e5bd7be5 2243 if (card && card->options.layer2)
4a71df50 2244 card = NULL;
847a50fd
CO		 2245 if (card)
2246 QETH_CARD_TEXT_(card, 4, "%d", rc);
4a71df50
FB		 2247 return card ;
2248}
2249
2250static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2251{
2252 int rc = 0;
2253
d11ba0c4
PT		 2254 QETH_DBF_TEXT(SETUP, 2, "stopcard");
2255 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 2256
2257 qeth_set_allowed_threads(card, 0, 1);
76b11f8e
UB		 2258 if (card->options.sniffer &&
2259 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2260 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
4a71df50
FB		 2261 if (card->read.state == CH_STATE_UP &&
2262 card->write.state == CH_STATE_UP &&
2263 (card->state == CARD_STATE_UP)) {
2264 if (recovery_mode)
2265 qeth_l3_stop(card->dev);
8af7c5ae 2266 else {
869da90b
UB		 2267 rtnl_lock();
2268 dev_close(card->dev);
2269 rtnl_unlock();
8af7c5ae 2270 }
4a71df50
FB		 2271 card->state = CARD_STATE_SOFTSETUP;
2272 }
2273 if (card->state == CARD_STATE_SOFTSETUP) {
70919e23 2274 qeth_l3_clear_ip_list(card, 1);
4a71df50
FB		 2275 qeth_clear_ipacmd_list(card);
2276 card->state = CARD_STATE_HARDSETUP;
2277 }
2278 if (card->state == CARD_STATE_HARDSETUP) {
4a71df50
FB		 2279 qeth_qdio_clear_card(card, 0);
2280 qeth_clear_qdio_buffers(card);
2281 qeth_clear_working_pool_list(card);
2282 card->state = CARD_STATE_DOWN;
2283 }
2284 if (card->state == CARD_STATE_DOWN) {
2285 qeth_clear_cmd_buffers(&card->read);
2286 qeth_clear_cmd_buffers(&card->write);
2287 }
4a71df50
FB		 2288 return rc;
2289}
2290
76b11f8e
UB		 2291/*
2292 * test for and Switch promiscuous mode (on or off)
2293 * either for guestlan or HiperSocket Sniffer
2294 */
2295static void
2296qeth_l3_handle_promisc_mode(struct qeth_card *card)
2297{
2298 struct net_device *dev = card->dev;
2299
2300 if (((dev->flags & IFF_PROMISC) &&
2301 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2302 (!(dev->flags & IFF_PROMISC) &&
2303 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2304 return;
2305
2306 if (card->info.guestlan) { /* Guestlan trace */
2307 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2308 qeth_setadp_promisc_mode(card);
2309 } else if (card->options.sniffer && /* HiperSockets trace */
2310 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2311 if (dev->flags & IFF_PROMISC) {
847a50fd 2312 QETH_CARD_TEXT(card, 3, "+promisc");
76b11f8e
UB		 2313 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2314 } else {
847a50fd 2315 QETH_CARD_TEXT(card, 3, "-promisc");
76b11f8e
UB		 2316 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2317 }
2318 }
2319}
2320
4a71df50
FB		 2321static void qeth_l3_set_multicast_list(struct net_device *dev)
2322{
509e2562 2323 struct qeth_card *card = dev->ml_priv;
4a71df50 2324
847a50fd 2325 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 2326 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2327 (card->state != CARD_STATE_UP))
2328 return;
76b11f8e
UB		 2329 if (!card->options.sniffer) {
2330 qeth_l3_delete_mc_addresses(card);
2331 qeth_l3_add_multicast_ipv4(card);
4a71df50 2332#ifdef CONFIG_QETH_IPV6
76b11f8e 2333 qeth_l3_add_multicast_ipv6(card);
4a71df50 2334#endif
76b11f8e
UB		 2335 qeth_l3_set_ip_addr_list(card);
2336 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2337 return;
2338 }
2339 qeth_l3_handle_promisc_mode(card);
4a71df50
FB		 2340}
2341
2342static const char *qeth_l3_arp_get_error_cause(int *rc)
2343{
2344 switch (*rc) {
2345 case QETH_IPA_ARP_RC_FAILED:
2346 *rc = -EIO;
2347 return "operation failed";
2348 case QETH_IPA_ARP_RC_NOTSUPP:
2349 *rc = -EOPNOTSUPP;
2350 return "operation not supported";
2351 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2352 *rc = -EINVAL;
2353 return "argument out of range";
2354 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2355 *rc = -EOPNOTSUPP;
2356 return "query operation not supported";
2357 case QETH_IPA_ARP_RC_Q_NO_DATA:
2358 *rc = -ENOENT;
2359 return "no query data available";
2360 default:
2361 return "unknown error";
2362 }
2363}
2364
2365static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2366{
2367 int tmp;
2368 int rc;
2369
847a50fd 2370 QETH_CARD_TEXT(card, 3, "arpstnoe");
4a71df50
FB		 2371
2372 /*
2373 * currently GuestLAN only supports the ARP assist function
2374 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2375 * thus we say EOPNOTSUPP for this ARP function
2376 */
2377 if (card->info.guestlan)
2378 return -EOPNOTSUPP;
2379 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2380 return -EOPNOTSUPP;
2381 }
2382 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2383 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2384 no_entries);
2385 if (rc) {
2386 tmp = rc;
14cc21b6
FB		 2387 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2388 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2389 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2390 }
2391 return rc;
2392}
2393
d0ddf30f
EL		 2394static __u32 get_arp_entry_size(struct qeth_card *card,
2395 struct qeth_arp_query_data *qdata,
2396 struct qeth_arp_entrytype *type, __u8 strip_entries)
4a71df50 2397{
d0ddf30f
EL		 2398 __u32 rc;
2399 __u8 is_hsi;
4a71df50 2400
d0ddf30f
EL		 2401 is_hsi = qdata->reply_bits == 5;
2402 if (type->ip == QETHARP_IP_ADDR_V4) {
2403 QETH_CARD_TEXT(card, 4, "arpev4");
2404 if (strip_entries) {
2405 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2406 sizeof(struct qeth_arp_qi_entry7_short);
2407 } else {
2408 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2409 sizeof(struct qeth_arp_qi_entry7);
2410 }
2411 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2412 QETH_CARD_TEXT(card, 4, "arpev6");
2413 if (strip_entries) {
2414 rc = is_hsi ?
2415 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2416 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2417 } else {
2418 rc = is_hsi ?
2419 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2420 sizeof(struct qeth_arp_qi_entry7_ipv6);
2421 }
2422 } else {
2423 QETH_CARD_TEXT(card, 4, "arpinv");
2424 rc = 0;
4a71df50 2425 }
d0ddf30f
EL		 2426
2427 return rc;
2428}
2429
2430static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2431{
2432 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2433 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
4a71df50
FB		 2434}
2435
2436static int qeth_l3_arp_query_cb(struct qeth_card *card,
2437 struct qeth_reply *reply, unsigned long data)
2438{
2439 struct qeth_ipa_cmd *cmd;
2440 struct qeth_arp_query_data *qdata;
2441 struct qeth_arp_query_info *qinfo;
4a71df50 2442 int i;
d0ddf30f
EL		 2443 int e;
2444 int entrybytes_done;
2445 int stripped_bytes;
2446 __u8 do_strip_entries;
4a71df50 2447
d0ddf30f 2448 QETH_CARD_TEXT(card, 3, "arpquecb");
4a71df50
FB		 2449
2450 qinfo = (struct qeth_arp_query_info *) reply->param;
2451 cmd = (struct qeth_ipa_cmd *) data;
d0ddf30f 2452 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
4a71df50 2453 if (cmd->hdr.return_code) {
d0ddf30f
EL		 2454 QETH_CARD_TEXT(card, 4, "arpcberr");
2455 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2456 return 0;
2457 }
2458 if (cmd->data.setassparms.hdr.return_code) {
2459 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
d0ddf30f
EL		 2460 QETH_CARD_TEXT(card, 4, "setaperr");
2461 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2462 return 0;
2463 }
2464 qdata = &cmd->data.setassparms.data.query_arp;
847a50fd 2465 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
4a71df50 2466
d0ddf30f
EL		 2467 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2468 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2469 entrybytes_done = 0;
2470 for (e = 0; e < qdata->no_entries; ++e) {
2471 char *cur_entry;
2472 __u32 esize;
2473 struct qeth_arp_entrytype *etype;
2474
2475 cur_entry = &qdata->data + entrybytes_done;
2476 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2477 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2478 QETH_CARD_TEXT(card, 4, "pmis");
2479 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2480 break;
2481 }
2482 esize = get_arp_entry_size(card, qdata, etype,
2483 do_strip_entries);
2484 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2485 if (!esize)
2486 break;
2487
2488 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2489 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2490 cmd->hdr.return_code = -ENOMEM;
2491 goto out_error;
2492 }
4a71df50 2493
d0ddf30f
EL		 2494 memcpy(qinfo->udata + qinfo->udata_offset,
2495 &qdata->data + entrybytes_done + stripped_bytes,
2496 esize);
2497 entrybytes_done += esize + stripped_bytes;
2498 qinfo->udata_offset += esize;
2499 ++qinfo->no_entries;
2500 }
4a71df50
FB		 2501 /* check if all replies received ... */
2502 if (cmd->data.setassparms.hdr.seq_no <
2503 cmd->data.setassparms.hdr.number_of_replies)
2504 return 1;
d0ddf30f 2505 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
4a71df50
FB		 2506 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2507 /* keep STRIP_ENTRIES flag so the user program can distinguish
2508 * stripped entries from normal ones */
2509 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2510 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2511 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
d0ddf30f 2512 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
4a71df50
FB		 2513 return 0;
2514out_error:
2515 i = 0;
2516 memcpy(qinfo->udata, &i, 4);
2517 return 0;
2518}
2519
2520static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2521 struct qeth_cmd_buffer *iob, int len,
2522 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2523 unsigned long),
2524 void *reply_param)
2525{
847a50fd 2526 QETH_CARD_TEXT(card, 4, "sendarp");
4a71df50
FB		 2527
2528 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2529 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2530 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2531 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2532 reply_cb, reply_param);
2533}
2534
d0ddf30f
EL		 2535static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2536 enum qeth_prot_versions prot,
2537 struct qeth_arp_query_info *qinfo)
4a71df50
FB		 2538{
2539 struct qeth_cmd_buffer *iob;
d0ddf30f 2540 struct qeth_ipa_cmd *cmd;
4a71df50
FB		 2541 int tmp;
2542 int rc;
2543
d0ddf30f
EL		 2544 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2545
2546 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2547 IPA_CMD_ASS_ARP_QUERY_INFO,
2548 sizeof(struct qeth_arp_query_data) - sizeof(char),
2549 prot);
2550 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2551 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2552 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2553 cmd->data.setassparms.data.query_arp.no_entries = 0;
2554 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2555 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2556 qeth_l3_arp_query_cb, (void *)qinfo);
2557 if (rc) {
2558 tmp = rc;
2559 QETH_DBF_MESSAGE(2,
2560 "Error while querying ARP cache on %s: %s "
2561 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2562 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2563 }
2564
2565 return rc;
2566}
2567
2568static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2569{
2570 struct qeth_arp_query_info qinfo = {0, };
2571 int rc;
2572
847a50fd 2573 QETH_CARD_TEXT(card, 3, "arpquery");
4a71df50
FB		 2574
2575 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2576 IPA_ARP_PROCESSING)) {
d0ddf30f
EL		 2577 QETH_CARD_TEXT(card, 3, "arpqnsup");
2578 rc = -EOPNOTSUPP;
2579 goto out;
4a71df50
FB		 2580 }
2581 /* get size of userspace buffer and mask_bits -> 6 bytes */
d0ddf30f
EL		 2582 if (copy_from_user(&qinfo, udata, 6)) {
2583 rc = -EFAULT;
2584 goto out;
2585 }
4a71df50 2586 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
d0ddf30f
EL		 2587 if (!qinfo.udata) {
2588 rc = -ENOMEM;
2589 goto out;
2590 }
4a71df50 2591 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
d0ddf30f 2592 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
4a71df50 2593 if (rc) {
4a71df50
FB		 2594 if (copy_to_user(udata, qinfo.udata, 4))
2595 rc = -EFAULT;
d0ddf30f 2596 goto free_and_out;
4a71df50 2597 } else {
d0ddf30f
EL		 2598#ifdef CONFIG_QETH_IPV6
2599 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2600 /* fails in case of GuestLAN QDIO mode */
2601 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2602 &qinfo);
2603 }
2604#endif
2605 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2606 QETH_CARD_TEXT(card, 4, "qactf");
4a71df50 2607 rc = -EFAULT;
d0ddf30f
EL		 2608 goto free_and_out;
2609 }
2610 QETH_CARD_TEXT_(card, 4, "qacts");
4a71df50 2611 }
d0ddf30f 2612free_and_out:
4a71df50 2613 kfree(qinfo.udata);
d0ddf30f 2614out:
4a71df50
FB		 2615 return rc;
2616}
2617
2618static int qeth_l3_arp_add_entry(struct qeth_card *card,
2619 struct qeth_arp_cache_entry *entry)
2620{
2621 struct qeth_cmd_buffer *iob;
2622 char buf[16];
2623 int tmp;
2624 int rc;
2625
847a50fd 2626 QETH_CARD_TEXT(card, 3, "arpadent");
4a71df50
FB		 2627
2628 /*
2629 * currently GuestLAN only supports the ARP assist function
2630 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2631 * thus we say EOPNOTSUPP for this ARP function
2632 */
2633 if (card->info.guestlan)
2634 return -EOPNOTSUPP;
2635 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2636 return -EOPNOTSUPP;
2637 }
2638
2639 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2640 IPA_CMD_ASS_ARP_ADD_ENTRY,
2641 sizeof(struct qeth_arp_cache_entry),
2642 QETH_PROT_IPV4);
2643 rc = qeth_l3_send_setassparms(card, iob,
2644 sizeof(struct qeth_arp_cache_entry),
2645 (unsigned long) entry,
2646 qeth_l3_default_setassparms_cb, NULL);
2647 if (rc) {
2648 tmp = rc;
2649 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2650 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2651 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2652 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2653 }
2654 return rc;
2655}
2656
2657static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2658 struct qeth_arp_cache_entry *entry)
2659{
2660 struct qeth_cmd_buffer *iob;
2661 char buf[16] = {0, };
2662 int tmp;
2663 int rc;
2664
847a50fd 2665 QETH_CARD_TEXT(card, 3, "arprment");
4a71df50
FB		 2666
2667 /*
2668 * currently GuestLAN only supports the ARP assist function
2669 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2670 * thus we say EOPNOTSUPP for this ARP function
2671 */
2672 if (card->info.guestlan)
2673 return -EOPNOTSUPP;
2674 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2675 return -EOPNOTSUPP;
2676 }
2677 memcpy(buf, entry, 12);
2678 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2679 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2680 12,
2681 QETH_PROT_IPV4);
2682 rc = qeth_l3_send_setassparms(card, iob,
2683 12, (unsigned long)buf,
2684 qeth_l3_default_setassparms_cb, NULL);
2685 if (rc) {
2686 tmp = rc;
2687 memset(buf, 0, 16);
2688 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2689 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2690 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2691 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2692 }
2693 return rc;
2694}
2695
2696static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2697{
2698 int rc;
2699 int tmp;
2700
847a50fd 2701 QETH_CARD_TEXT(card, 3, "arpflush");
4a71df50
FB		 2702
2703 /*
2704 * currently GuestLAN only supports the ARP assist function
2705 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2706 * thus we say EOPNOTSUPP for this ARP function
2707 */
2708 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2709 return -EOPNOTSUPP;
2710 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2711 return -EOPNOTSUPP;
2712 }
2713 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2714 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2715 if (rc) {
2716 tmp = rc;
14cc21b6
FB		 2717 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2718 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2719 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2720 }
2721 return rc;
2722}
2723
2724static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2725{
509e2562 2726 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2727 struct qeth_arp_cache_entry arp_entry;
2728 struct mii_ioctl_data *mii_data;
2729 int rc = 0;
2730
2731 if (!card)
2732 return -ENODEV;
2733
2734 if ((card->state != CARD_STATE_UP) &&
2735 (card->state != CARD_STATE_SOFTSETUP))
2736 return -ENODEV;
2737
2738 switch (cmd) {
2739 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2740 if (!capable(CAP_NET_ADMIN)) {
2741 rc = -EPERM;
2742 break;
2743 }
2744 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2745 break;
2746 case SIOC_QETH_ARP_QUERY_INFO:
2747 if (!capable(CAP_NET_ADMIN)) {
2748 rc = -EPERM;
2749 break;
2750 }
2751 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2752 break;
2753 case SIOC_QETH_ARP_ADD_ENTRY:
2754 if (!capable(CAP_NET_ADMIN)) {
2755 rc = -EPERM;
2756 break;
2757 }
2758 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2759 sizeof(struct qeth_arp_cache_entry)))
2760 rc = -EFAULT;
2761 else
2762 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2763 break;
2764 case SIOC_QETH_ARP_REMOVE_ENTRY:
2765 if (!capable(CAP_NET_ADMIN)) {
2766 rc = -EPERM;
2767 break;
2768 }
2769 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2770 sizeof(struct qeth_arp_cache_entry)))
2771 rc = -EFAULT;
2772 else
2773 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2774 break;
2775 case SIOC_QETH_ARP_FLUSH_CACHE:
2776 if (!capable(CAP_NET_ADMIN)) {
2777 rc = -EPERM;
2778 break;
2779 }
2780 rc = qeth_l3_arp_flush_cache(card);
2781 break;
2782 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2783 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2784 break;
2785 case SIOC_QETH_GET_CARD_TYPE:
5113fec0
UB		 2786 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2787 card->info.type == QETH_CARD_TYPE_OSX) &&
4a71df50
FB		 2788 !card->info.guestlan)
2789 return 1;
2790 return 0;
2791 break;
2792 case SIOCGMIIPHY:
2793 mii_data = if_mii(rq);
2794 mii_data->phy_id = 0;
2795 break;
2796 case SIOCGMIIREG:
2797 mii_data = if_mii(rq);
2798 if (mii_data->phy_id != 0)
2799 rc = -EINVAL;
2800 else
2801 mii_data->val_out = qeth_mdio_read(dev,
2802 mii_data->phy_id,
2803 mii_data->reg_num);
2804 break;
2805 default:
2806 rc = -EOPNOTSUPP;
2807 }
2808 if (rc)
847a50fd 2809 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
4a71df50
FB		 2810 return rc;
2811}
2812
ce73e10e
KDW		 2813int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2814{
2815 int cast_type = RTN_UNSPEC;
2816
2817 if (skb_dst(skb) && skb_dst(skb)->neighbour) {
2818 cast_type = skb_dst(skb)->neighbour->type;
2819 if ((cast_type == RTN_BROADCAST) ||
2820 (cast_type == RTN_MULTICAST) ||
2821 (cast_type == RTN_ANYCAST))
2822 return cast_type;
2823 else
2824 return RTN_UNSPEC;
2825 }
2826 /* try something else */
2827 if (skb->protocol == ETH_P_IPV6)
2828 return (skb_network_header(skb)[24] == 0xff) ?
2829 RTN_MULTICAST : 0;
2830 else if (skb->protocol == ETH_P_IP)
2831 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2832 RTN_MULTICAST : 0;
2833 /* ... */
2834 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2835 return RTN_BROADCAST;
2836 else {
2837 u16 hdr_mac;
2838
2839 hdr_mac = *((u16 *)skb->data);
2840 /* tr multicast? */
2841 switch (card->info.link_type) {
2842 case QETH_LINK_TYPE_HSTR:
2843 case QETH_LINK_TYPE_LANE_TR:
2844 if ((hdr_mac == QETH_TR_MAC_NC) ||
2845 (hdr_mac == QETH_TR_MAC_C))
2846 return RTN_MULTICAST;
2847 break;
2848 /* eth or so multicast? */
2849 default:
2850 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2851 (hdr_mac == QETH_ETH_MAC_V6))
2852 return RTN_MULTICAST;
2853 }
2854 }
2855 return cast_type;
2856}
2857
4a71df50
FB		 2858static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2859 struct sk_buff *skb, int ipv, int cast_type)
2860{
4a71df50
FB		 2861 memset(hdr, 0, sizeof(struct qeth_hdr));
2862 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2863 hdr->hdr.l3.ext_flags = 0;
2864
2865 /*
2866 * before we're going to overwrite this location with next hop ip.
2867 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2868 */
2869 if (card->vlangrp && vlan_tx_tag_present(skb)) {
213298f8
FB		 2870 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2871 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2872 else
2873 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4a71df50
FB		 2874 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2875 }
2876
2877 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2878 if (ipv == 4) {
2879 /* IPv4 */
2880 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2881 memset(hdr->hdr.l3.dest_addr, 0, 12);
adf30907 2882 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
4a71df50 2883 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
adf30907 2884 *((u32 *) skb_dst(skb)->neighbour->primary_key);
4a71df50
FB		 2885 } else {
2886 /* fill in destination address used in ip header */
2887 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2888 ip_hdr(skb)->daddr;
2889 }
2890 } else if (ipv == 6) {
2891 /* IPv6 */
2892 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2893 if (card->info.type == QETH_CARD_TYPE_IQD)
2894 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
adf30907 2895 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
4a71df50 2896 memcpy(hdr->hdr.l3.dest_addr,
adf30907 2897 skb_dst(skb)->neighbour->primary_key, 16);
4a71df50
FB		 2898 } else {
2899 /* fill in destination address used in ip header */
2900 memcpy(hdr->hdr.l3.dest_addr,
2901 &ipv6_hdr(skb)->daddr, 16);
2902 }
2903 } else {
2904 /* passthrough */
2905 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2906 !memcmp(skb->data + sizeof(struct qeth_hdr) +
2907 sizeof(__u16), skb->dev->broadcast, 6)) {
2908 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2909 QETH_HDR_PASSTHRU;
2910 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2911 skb->dev->broadcast, 6)) {
2912 /* broadcast? */
2913 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2914 QETH_HDR_PASSTHRU;
2915 } else {
2916 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2917 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2918 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2919 }
2920 }
2921}
2922
f6b85b6c
FB		 2923static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2924 struct qeth_hdr *hdr, struct sk_buff *skb)
2925{
2926 struct iphdr *iph = ip_hdr(skb);
2927
2928 /* tcph->check contains already the pseudo hdr checksum
2929 * so just set the header flags
2930 */
2931 if (iph->protocol == IPPROTO_UDP)
2932 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
16c0f936
FB		 2933 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2934 QETH_HDR_EXT_CSUM_HDR_REQ;
2935 iph->check = 0;
f6b85b6c
FB		 2936 if (card->options.performance_stats)
2937 card->perf_stats.tx_csum++;
2938}
2939
64ef8957
FB		 2940static void qeth_tso_fill_header(struct qeth_card *card,
2941 struct qeth_hdr *qhdr, struct sk_buff *skb)
2942{
2943 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2944 struct tcphdr *tcph = tcp_hdr(skb);
2945 struct iphdr *iph = ip_hdr(skb);
2946 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2947
2948 /*fix header to TSO values ...*/
2949 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
8fa9208e 2950 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
64ef8957
FB		 2951 /*set values which are fix for the first approach ...*/
2952 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2953 hdr->ext.imb_hdr_no = 1;
2954 hdr->ext.hdr_type = 1;
2955 hdr->ext.hdr_version = 1;
2956 hdr->ext.hdr_len = 28;
2957 /*insert non-fix values */
2958 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2959 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2960 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2961 sizeof(struct qeth_hdr_tso));
2962 tcph->check = 0;
2963 if (skb->protocol == ETH_P_IPV6) {
2964 ip6h->payload_len = 0;
2965 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2966 0, IPPROTO_TCP, 0);
2967 } else {
2968 /*OSA want us to set these values ...*/
2969 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2970 0, IPPROTO_TCP, 0);
2971 iph->tot_len = 0;
2972 iph->check = 0;
2973 }
2974}
2975
c3b4a740
FB		 2976static inline int qeth_l3_tso_elements(struct sk_buff *skb)
2977{
2978 unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
2979 tcp_hdr(skb)->doff * 4;
2980 int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
51aa165c 2981 int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
c3b4a740
FB		 2982 elements += skb_shinfo(skb)->nr_frags;
2983 return elements;
2984}
2985
4a71df50
FB		 2986static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2987{
2988 int rc;
2989 u16 *tag;
2990 struct qeth_hdr *hdr = NULL;
2991 int elements_needed = 0;
64ef8957 2992 int elems;
509e2562 2993 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2994 struct sk_buff *new_skb = NULL;
2995 int ipv = qeth_get_ip_version(skb);
ce73e10e 2996 int cast_type = qeth_l3_get_cast_type(card, skb);
4a71df50
FB		 2997 struct qeth_qdio_out_q *queue = card->qdio.out_qs
2998 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
2999 int tx_bytes = skb->len;
6204b47e 3000 bool large_send;
683d718a 3001 int data_offset = -1;
64ef8957 3002 int nr_frags;
4a71df50 3003
21fde749
FB		 3004 if (((card->info.type == QETH_CARD_TYPE_IQD) && (!ipv)) ||
3005 card->options.sniffer)
4a71df50
FB		 3006 goto tx_drop;
3007
3008 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3009 card->stats.tx_carrier_errors++;
3010 goto tx_drop;
3011 }
3012
3013 if ((cast_type == RTN_BROADCAST) &&
3014 (card->info.broadcast_capable == 0))
3015 goto tx_drop;
3016
3017 if (card->options.performance_stats) {
3018 card->perf_stats.outbound_cnt++;
3019 card->perf_stats.outbound_start_time = qeth_get_micros();
3020 }
3021
6204b47e 3022 large_send = skb_is_gso(skb);
683d718a
FB		 3023
3024 if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
3025 (skb_shinfo(skb)->nr_frags == 0)) {
3026 new_skb = skb;
3027 data_offset = ETH_HLEN;
3028 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
3029 if (!hdr)
3030 goto tx_drop;
3031 elements_needed++;
3032 } else {
3033 /* create a clone with writeable headroom */
3034 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
3035 + VLAN_HLEN);
3036 if (!new_skb)
3037 goto tx_drop;
3038 }
4a71df50
FB		 3039
3040 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 3041 if (data_offset < 0)
3042 skb_pull(new_skb, ETH_HLEN);
4a71df50 3043 } else {
21fde749 3044 if (ipv == 4) {
4a71df50
FB		 3045 if (card->dev->type == ARPHRD_IEEE802_TR)
3046 skb_pull(new_skb, TR_HLEN);
3047 else
3048 skb_pull(new_skb, ETH_HLEN);
3049 }
3050
91d4576b 3051 if (ipv != 4 && card->vlangrp &&
4a71df50
FB		 3052 vlan_tx_tag_present(new_skb)) {
3053 skb_push(new_skb, VLAN_HLEN);
3054 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
3055 skb_copy_to_linear_data_offset(new_skb, 4,
3056 new_skb->data + 8, 4);
3057 skb_copy_to_linear_data_offset(new_skb, 8,
3058 new_skb->data + 12, 4);
3059 tag = (u16 *)(new_skb->data + 12);
3060 *tag = __constant_htons(ETH_P_8021Q);
3061 *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
2b4ff112 3062 new_skb->vlan_tci = 0;
4a71df50
FB		 3063 }
3064 }
3065
3066 netif_stop_queue(dev);
3067
4a71df50 3068 /* fix hardware limitation: as long as we do not have sbal
64ef8957 3069 * chaining we can not send long frag lists
4a71df50 3070 */
6204b47e 3071 if (large_send) {
c3b4a740
FB		 3072 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
3073 if (skb_linearize(new_skb))
3074 goto tx_drop;
3075 if (card->options.performance_stats)
3076 card->perf_stats.tx_lin++;
3077 }
64ef8957 3078 }
4a71df50 3079
6204b47e 3080 if (large_send && (cast_type == RTN_UNSPEC)) {
4a71df50
FB		 3081 hdr = (struct qeth_hdr *)skb_push(new_skb,
3082 sizeof(struct qeth_hdr_tso));
3083 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
3084 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
3085 qeth_tso_fill_header(card, hdr, new_skb);
3086 elements_needed++;
3087 } else {
683d718a
FB		 3088 if (data_offset < 0) {
3089 hdr = (struct qeth_hdr *)skb_push(new_skb,
4a71df50 3090 sizeof(struct qeth_hdr));
683d718a
FB		 3091 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3092 cast_type);
3093 } else {
3094 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3095 cast_type);
3096 hdr->hdr.l3.length = new_skb->len - data_offset;
3097 }
f6b85b6c
FB		 3098
3099 if (skb->ip_summed == CHECKSUM_PARTIAL)
3100 qeth_l3_hdr_csum(card, hdr, new_skb);
4a71df50
FB		 3101 }
3102
64ef8957 3103 elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
4a71df50 3104 elements_needed);
64ef8957
FB		 3105 if (!elems) {
3106 if (data_offset >= 0)
3107 kmem_cache_free(qeth_core_header_cache, hdr);
3108 goto tx_drop;
f61a0d05 3109 }
64ef8957
FB		 3110 elements_needed += elems;
3111 nr_frags = skb_shinfo(new_skb)->nr_frags;
4a71df50 3112
51aa165c
FB		 3113 if (card->info.type != QETH_CARD_TYPE_IQD) {
3114 int len;
6204b47e 3115 if (large_send)
51aa165c
FB		 3116 len = ((unsigned long)tcp_hdr(new_skb) +
3117 tcp_hdr(new_skb)->doff * 4) -
3118 (unsigned long)new_skb->data;
3119 else
3120 len = sizeof(struct qeth_hdr_layer3);
3121
3122 if (qeth_hdr_chk_and_bounce(new_skb, len))
3123 goto tx_drop;
4a71df50 3124 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
64ef8957 3125 elements_needed);
51aa165c 3126 } else
4a71df50 3127 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
64ef8957 3128 elements_needed, data_offset, 0);
4a71df50
FB		 3129
3130 if (!rc) {
3131 card->stats.tx_packets++;
3132 card->stats.tx_bytes += tx_bytes;
3133 if (new_skb != skb)
3134 dev_kfree_skb_any(skb);
3135 if (card->options.performance_stats) {
6204b47e 3136 if (large_send) {
4a71df50
FB		 3137 card->perf_stats.large_send_bytes += tx_bytes;
3138 card->perf_stats.large_send_cnt++;
3139 }
64ef8957 3140 if (nr_frags) {
4a71df50
FB		 3141 card->perf_stats.sg_skbs_sent++;
3142 /* nr_frags + skb->data */
64ef8957 3143 card->perf_stats.sg_frags_sent += nr_frags + 1;
4a71df50
FB		 3144 }
3145 }
ec634fe3 3146 rc = NETDEV_TX_OK;
4a71df50 3147 } else {
683d718a
FB		 3148 if (data_offset >= 0)
3149 kmem_cache_free(qeth_core_header_cache, hdr);
3150
4a71df50
FB		 3151 if (rc == -EBUSY) {
3152 if (new_skb != skb)
3153 dev_kfree_skb_any(new_skb);
3154 return NETDEV_TX_BUSY;
3155 } else
3156 goto tx_drop;
3157 }
3158
3159 netif_wake_queue(dev);
3160 if (card->options.performance_stats)
3161 card->perf_stats.outbound_time += qeth_get_micros() -
3162 card->perf_stats.outbound_start_time;
3163 return rc;
3164
3165tx_drop:
3166 card->stats.tx_dropped++;
3167 card->stats.tx_errors++;
3168 if ((new_skb != skb) && new_skb)
3169 dev_kfree_skb_any(new_skb);
3170 dev_kfree_skb_any(skb);
d0ec0f54 3171 netif_wake_queue(dev);
4a71df50
FB		 3172 return NETDEV_TX_OK;
3173}
3174
39423440 3175static int __qeth_l3_open(struct net_device *dev)
4a71df50 3176{
509e2562 3177 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 3178 int rc = 0;
4a71df50 3179
847a50fd 3180 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 3181 if (card->state == CARD_STATE_UP)
3182 return rc;
4a71df50
FB		 3183 if (card->state != CARD_STATE_SOFTSETUP)
3184 return -ENODEV;
3185 card->data.state = CH_STATE_UP;
3186 card->state = CARD_STATE_UP;
4a71df50
FB		 3187 netif_start_queue(dev);
3188
a1c3ed4c
FB		 3189 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3190 napi_enable(&card->napi);
3191 napi_schedule(&card->napi);
3192 } else
3193 rc = -EIO;
3194 return rc;
4a71df50
FB		 3195}
3196
39423440
UB		 3197static int qeth_l3_open(struct net_device *dev)
3198{
3199 struct qeth_card *card = dev->ml_priv;
3200
3201 QETH_CARD_TEXT(card, 5, "qethope_");
3202 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
3203 QETH_CARD_TEXT(card, 3, "openREC");
3204 return -ERESTARTSYS;
3205 }
3206 return __qeth_l3_open(dev);
3207}
3208
4a71df50
FB		 3209static int qeth_l3_stop(struct net_device *dev)
3210{
509e2562 3211 struct qeth_card *card = dev->ml_priv;
4a71df50 3212
847a50fd 3213 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 3214 netif_tx_disable(dev);
a1c3ed4c 3215 if (card->state == CARD_STATE_UP) {
4a71df50 3216 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 3217 napi_disable(&card->napi);
3218 }
4a71df50
FB		 3219 return 0;
3220}
3221
6204b47e 3222static u32 qeth_l3_fix_features(struct net_device *dev, u32 features)
4a71df50 3223{
509e2562 3224 struct qeth_card *card = dev->ml_priv;
4a71df50 3225
6204b47e
MM		 3226 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3227 features &= ~NETIF_F_IP_CSUM;
3228 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
3229 features &= ~NETIF_F_TSO;
3230 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
3231 features &= ~NETIF_F_RXCSUM;
3232
3233 return features;
4a71df50
FB		 3234}
3235
6204b47e 3236static int qeth_l3_set_features(struct net_device *dev, u32 features)
4a71df50 3237{
4a71df50 3238 enum qeth_checksum_types csum_type;
6204b47e
MM		 3239 struct qeth_card *card = dev->ml_priv;
3240 u32 changed = dev->features ^ features;
4a71df50 3241
6204b47e
MM		 3242 if (!(changed & NETIF_F_RXCSUM))
3243 return 0;
3244
3245 if (features & NETIF_F_RXCSUM)
4a71df50
FB		 3246 csum_type = HW_CHECKSUMMING;
3247 else
3248 csum_type = SW_CHECKSUMMING;
3249
6204b47e 3250 dev->features = features ^ NETIF_F_RXCSUM;
3fd434d8 3251 return qeth_l3_set_rx_csum(card, csum_type);
4a71df50
FB		 3252}
3253
0fc0b732 3254static const struct ethtool_ops qeth_l3_ethtool_ops = {
4a71df50 3255 .get_link = ethtool_op_get_link,
4a71df50
FB		 3256 .get_strings = qeth_core_get_strings,
3257 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 3258 .get_sset_count = qeth_core_get_sset_count,
4a71df50 3259 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 3260 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 3261};
3262
3263/*
3264 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3265 * NOARP on the netdevice is no option because it also turns off neighbor
3266 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3267 * arp resolution but we want the hard header (packet socket will work
3268 * e.g. tcpdump)
3269 */
3270static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3271{
3272 n->nud_state = NUD_NOARP;
3273 memcpy(n->ha, "FAKELL", 6);
3274 n->output = n->ops->connected_output;
3275 return 0;
3276}
3277
3278static int
3279qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3280{
3281 if (np->tbl->family == AF_INET)
3282 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3283
3284 return 0;
3285}
3286
3d58cefd 3287static const struct net_device_ops qeth_l3_netdev_ops = {
8403b13c
FB		 3288 .ndo_open = qeth_l3_open,
3289 .ndo_stop = qeth_l3_stop,
3290 .ndo_get_stats = qeth_get_stats,
3291 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3292 .ndo_validate_addr = eth_validate_addr,
3293 .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3294 .ndo_do_ioctl = qeth_l3_do_ioctl,
3295 .ndo_change_mtu = qeth_change_mtu,
6204b47e
MM		 3296 .ndo_fix_features = qeth_l3_fix_features,
3297 .ndo_set_features = qeth_l3_set_features,
8403b13c
FB		 3298 .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
3299 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3300 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3301 .ndo_tx_timeout = qeth_tx_timeout,
3302};
3303
3d58cefd
FB		 3304static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3305 .ndo_open = qeth_l3_open,
3306 .ndo_stop = qeth_l3_stop,
3307 .ndo_get_stats = qeth_get_stats,
3308 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3309 .ndo_validate_addr = eth_validate_addr,
3310 .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3311 .ndo_do_ioctl = qeth_l3_do_ioctl,
3312 .ndo_change_mtu = qeth_change_mtu,
6204b47e
MM		 3313 .ndo_fix_features = qeth_l3_fix_features,
3314 .ndo_set_features = qeth_l3_set_features,
3d58cefd
FB		 3315 .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
3316 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3317 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3318 .ndo_tx_timeout = qeth_tx_timeout,
3319 .ndo_neigh_setup = qeth_l3_neigh_setup,
3320};
3321
4a71df50
FB		 3322static int qeth_l3_setup_netdev(struct qeth_card *card)
3323{
5113fec0
UB		 3324 if (card->info.type == QETH_CARD_TYPE_OSD ||
3325 card->info.type == QETH_CARD_TYPE_OSX) {
4a71df50
FB		 3326 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3327 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3328#ifdef CONFIG_TR
3329 card->dev = alloc_trdev(0);
3330#endif
3331 if (!card->dev)
3332 return -ENODEV;
3d58cefd 3333 card->dev->netdev_ops = &qeth_l3_netdev_ops;
4a71df50
FB		 3334 } else {
3335 card->dev = alloc_etherdev(0);
3336 if (!card->dev)
3337 return -ENODEV;
3d58cefd 3338 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
4a71df50
FB		 3339
3340 /*IPv6 address autoconfiguration stuff*/
3341 qeth_l3_get_unique_id(card);
3342 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3343 card->dev->dev_id = card->info.unique_id &
3344 0xffff;
3345 }
3346 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3347 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3348 if (!card->dev)
3349 return -ENODEV;
3350 card->dev->flags |= IFF_NOARP;
3d58cefd 3351 card->dev->netdev_ops = &qeth_l3_netdev_ops;
4a71df50
FB		 3352 qeth_l3_iqd_read_initial_mac(card);
3353 } else
3354 return -ENODEV;
3355
509e2562 3356 card->dev->ml_priv = card;
4a71df50 3357 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50
FB		 3358 card->dev->mtu = card->info.initial_mtu;
3359 SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
6204b47e
MM		 3360 card->dev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM |
3361 NETIF_F_IP_CSUM | NETIF_F_TSO;
4a71df50
FB		 3362 card->dev->features |= NETIF_F_HW_VLAN_TX |
3363 NETIF_F_HW_VLAN_RX |
3364 NETIF_F_HW_VLAN_FILTER;
86d15cd8 3365 card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
c3b4a740 3366 card->dev->gso_max_size = 15 * PAGE_SIZE;
4a71df50
FB		 3367
3368 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
a1c3ed4c 3369 netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
4a71df50
FB		 3370 return register_netdev(card->dev);
3371}
3372
4a71df50
FB		 3373static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3374{
3375 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3376
3377 qeth_l3_create_device_attributes(&gdev->dev);
3378 card->options.layer2 = 0;
a1c3ed4c 3379 card->discipline.start_poll = qeth_qdio_start_poll;
4a71df50 3380 card->discipline.input_handler = (qdio_handler_t *)
a1c3ed4c 3381 qeth_qdio_input_handler;
4a71df50
FB		 3382 card->discipline.output_handler = (qdio_handler_t *)
3383 qeth_qdio_output_handler;
3384 card->discipline.recover = qeth_l3_recover;
dcf4ae2d
FB		 3385 if ((card->info.type == QETH_CARD_TYPE_OSD) ||
3386 (card->info.type == QETH_CARD_TYPE_OSX))
3387 card->options.checksum_type = HW_CHECKSUMMING;
4a71df50
FB		 3388 return 0;
3389}
3390
3391static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3392{
3393 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3394
9dc48ccc
UB		 3395 qeth_l3_remove_device_attributes(&cgdev->dev);
3396
f2148565 3397 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 3398 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3399
70919e23 3400 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 3401 qeth_l3_set_offline(cgdev);
4a71df50
FB		 3402
3403 if (card->dev) {
3404 unregister_netdev(card->dev);
3405 card->dev = NULL;
3406 }
3407
70919e23 3408 qeth_l3_clear_ip_list(card, 0);
4a71df50
FB		 3409 qeth_l3_clear_ipato_list(card);
3410 return;
3411}
3412
3413static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3414{
3415 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3416 int rc = 0;
3417 enum qeth_card_states recover_flag;
3418
3419 BUG_ON(!card);
9dc48ccc 3420 mutex_lock(&card->discipline_mutex);
c4949f07 3421 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3422 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3423 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 3424
4a71df50 3425 recover_flag = card->state;
4a71df50
FB		 3426 rc = qeth_core_hardsetup_card(card);
3427 if (rc) {
d11ba0c4 3428 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
aa909224 3429 rc = -ENODEV;
4a71df50
FB		 3430 goto out_remove;
3431 }
3432
3433 qeth_l3_query_ipassists(card, QETH_PROT_IPV4);
3434
aa909224
UB		 3435 if (!card->dev && qeth_l3_setup_netdev(card)) {
3436 rc = -ENODEV;
4a71df50 3437 goto out_remove;
aa909224 3438 }
4a71df50
FB		 3439
3440 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 3441 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 3442 qeth_print_status_message(card);
3443
3444 /* softsetup */
d11ba0c4 3445 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 3446
3447 rc = qeth_send_startlan(card);
3448 if (rc) {
d11ba0c4 3449 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 3450 if (rc == 0xe080) {
74eacdb9
FB		 3451 dev_warn(&card->gdev->dev,
3452 "The LAN is offline\n");
4a71df50 3453 card->lan_online = 0;
2b6203bb 3454 goto contin;
4a71df50 3455 }
aa909224 3456 rc = -ENODEV;
f2148565 3457 goto out_remove;
4a71df50
FB		 3458 } else
3459 card->lan_online = 1;
4a71df50 3460
2b6203bb 3461contin:
4a71df50
FB		 3462 rc = qeth_l3_setadapter_parms(card);
3463 if (rc)
d11ba0c4 3464 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
76b11f8e
UB		 3465 if (!card->options.sniffer) {
3466 rc = qeth_l3_start_ipassists(card);
3467 if (rc)
3468 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
76b11f8e
UB		 3469 rc = qeth_l3_setrouting_v4(card);
3470 if (rc)
3471 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3472 rc = qeth_l3_setrouting_v6(card);
3473 if (rc)
3474 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3475 }
4a71df50
FB		 3476 netif_tx_disable(card->dev);
3477
3478 rc = qeth_init_qdio_queues(card);
3479 if (rc) {
d11ba0c4 3480 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 3481 rc = -ENODEV;
4a71df50
FB		 3482 goto out_remove;
3483 }
3484 card->state = CARD_STATE_SOFTSETUP;
4a71df50
FB		 3485
3486 qeth_set_allowed_threads(card, 0xffffffff, 0);
e8069040 3487 qeth_l3_set_ip_addr_list(card);
2b6203bb
UB		 3488 if (card->lan_online)
3489 netif_carrier_on(card->dev);
3490 else
3491 netif_carrier_off(card->dev);
8af7c5ae
FB		 3492 if (recover_flag == CARD_STATE_RECOVER) {
3493 if (recovery_mode)
39423440 3494 __qeth_l3_open(card->dev);
8af7c5ae
FB		 3495 else {
3496 rtnl_lock();
3497 dev_open(card->dev);
3498 rtnl_unlock();
3499 }
3500 qeth_l3_set_multicast_list(card->dev);
4a71df50
FB		 3501 }
3502 /* let user_space know that device is online */
3503 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3504 mutex_unlock(&card->conf_mutex);
9dc48ccc 3505 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3506 return 0;
3507out_remove:
4a71df50
FB		 3508 qeth_l3_stop_card(card, 0);
3509 ccw_device_set_offline(CARD_DDEV(card));
3510 ccw_device_set_offline(CARD_WDEV(card));
3511 ccw_device_set_offline(CARD_RDEV(card));
3512 if (recover_flag == CARD_STATE_RECOVER)
3513 card->state = CARD_STATE_RECOVER;
3514 else
3515 card->state = CARD_STATE_DOWN;
c4949f07 3516 mutex_unlock(&card->conf_mutex);
9dc48ccc 3517 mutex_unlock(&card->discipline_mutex);
aa909224 3518 return rc;
4a71df50
FB		 3519}
3520
3521static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3522{
3523 return __qeth_l3_set_online(gdev, 0);
3524}
3525
3526static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3527 int recovery_mode)
3528{
3529 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3530 int rc = 0, rc2 = 0, rc3 = 0;
3531 enum qeth_card_states recover_flag;
3532
9dc48ccc 3533 mutex_lock(&card->discipline_mutex);
c4949f07 3534 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3535 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3536 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 3537
3538 if (card->dev && netif_carrier_ok(card->dev))
3539 netif_carrier_off(card->dev);
3540 recover_flag = card->state;
0f5623c9 3541 qeth_l3_stop_card(card, recovery_mode);
4a71df50
FB		 3542 rc = ccw_device_set_offline(CARD_DDEV(card));
3543 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3544 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3545 if (!rc)
3546 rc = (rc2) ? rc2 : rc3;
3547 if (rc)
d11ba0c4 3548 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50
FB		 3549 if (recover_flag == CARD_STATE_UP)
3550 card->state = CARD_STATE_RECOVER;
3551 /* let user_space know that device is offline */
3552 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3553 mutex_unlock(&card->conf_mutex);
9dc48ccc 3554 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3555 return 0;
3556}
3557
3558static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3559{
3560 return __qeth_l3_set_offline(cgdev, 0);
3561}
3562
3563static int qeth_l3_recover(void *ptr)
3564{
3565 struct qeth_card *card;
3566 int rc = 0;
3567
3568 card = (struct qeth_card *) ptr;
847a50fd
CO		 3569 QETH_CARD_TEXT(card, 2, "recover1");
3570 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
4a71df50
FB		 3571 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3572 return 0;
847a50fd 3573 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 3574 dev_warn(&card->gdev->dev,
3575 "A recovery process has been started for the device\n");
4a71df50
FB		 3576 __qeth_l3_set_offline(card->gdev, 1);
3577 rc = __qeth_l3_set_online(card->gdev, 1);
4a71df50 3578 if (!rc)
74eacdb9
FB		 3579 dev_info(&card->gdev->dev,
3580 "Device successfully recovered!\n");
28a7e4c9
UB		 3581 else {
3582 rtnl_lock();
3583 dev_close(card->dev);
3584 rtnl_unlock();
74eacdb9
FB		 3585 dev_warn(&card->gdev->dev, "The qeth device driver "
3586 "failed to recover an error on the device\n");
28a7e4c9 3587 }
a1c3ed4c
FB		 3588 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3589 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 3590 return 0;
3591}
3592
3593static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3594{
3595 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4a71df50
FB		 3596 qeth_qdio_clear_card(card, 0);
3597 qeth_clear_qdio_buffers(card);
3598}
3599
bbcfcdc8
FB		 3600static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3601{
3602 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3603
3604 if (card->dev)
3605 netif_device_detach(card->dev);
3606 qeth_set_allowed_threads(card, 0, 1);
3607 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3608 if (gdev->state == CCWGROUP_OFFLINE)
3609 return 0;
3610 if (card->state == CARD_STATE_UP) {
bbcfcdc8
FB		 3611 __qeth_l3_set_offline(card->gdev, 1);
3612 } else
3613 __qeth_l3_set_offline(card->gdev, 0);
3614 return 0;
3615}
3616
3617static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3618{
3619 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3620 int rc = 0;
3621
3622 if (gdev->state == CCWGROUP_OFFLINE)
3623 goto out;
3624
3625 if (card->state == CARD_STATE_RECOVER) {
3626 rc = __qeth_l3_set_online(card->gdev, 1);
3627 if (rc) {
869da90b
UB		 3628 rtnl_lock();
3629 dev_close(card->dev);
3630 rtnl_unlock();
bbcfcdc8
FB		 3631 }
3632 } else
3633 rc = __qeth_l3_set_online(card->gdev, 0);
3634out:
3635 qeth_set_allowed_threads(card, 0xffffffff, 0);
3636 if (card->dev)
3637 netif_device_attach(card->dev);
3638 if (rc)
3639 dev_warn(&card->gdev->dev, "The qeth device driver "
3640 "failed to recover an error on the device\n");
3641 return rc;
3642}
3643
4a71df50
FB		 3644struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3645 .probe = qeth_l3_probe_device,
3646 .remove = qeth_l3_remove_device,
3647 .set_online = qeth_l3_set_online,
3648 .set_offline = qeth_l3_set_offline,
3649 .shutdown = qeth_l3_shutdown,
bbcfcdc8
FB		 3650 .freeze = qeth_l3_pm_suspend,
3651 .thaw = qeth_l3_pm_resume,
3652 .restore = qeth_l3_pm_resume,
4a71df50
FB		 3653};
3654EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3655
3656static int qeth_l3_ip_event(struct notifier_block *this,
76fef2b6 3657 unsigned long event, void *ptr)
4a71df50
FB		 3658{
3659 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3660 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3661 struct qeth_ipaddr *addr;
3662 struct qeth_card *card;
3663
c346dca1 3664 if (dev_net(dev) != &init_net)
76fef2b6
DM		 3665 return NOTIFY_DONE;
3666
4a71df50 3667 card = qeth_l3_get_card_from_dev(dev);
847a50fd 3668 QETH_CARD_TEXT(card, 3, "ipevent");
4a71df50
FB		 3669 if (!card)
3670 return NOTIFY_DONE;
3671
3672 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3673 if (addr != NULL) {
3674 addr->u.a4.addr = ifa->ifa_address;
3675 addr->u.a4.mask = ifa->ifa_mask;
3676 addr->type = QETH_IP_TYPE_NORMAL;
3677 } else
3678 goto out;
3679
3680 switch (event) {
3681 case NETDEV_UP:
3682 if (!qeth_l3_add_ip(card, addr))
3683 kfree(addr);
3684 break;
3685 case NETDEV_DOWN:
3686 if (!qeth_l3_delete_ip(card, addr))
3687 kfree(addr);
3688 break;
3689 default:
3690 break;
3691 }
3692 qeth_l3_set_ip_addr_list(card);
3693out:
3694 return NOTIFY_DONE;
3695}
3696
3697static struct notifier_block qeth_l3_ip_notifier = {
3698 qeth_l3_ip_event,
3699 NULL,
3700};
3701
3702#ifdef CONFIG_QETH_IPV6
3703/**
3704 * IPv6 event handler
3705 */
3706static int qeth_l3_ip6_event(struct notifier_block *this,
76fef2b6 3707 unsigned long event, void *ptr)
4a71df50
FB		 3708{
3709 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3710 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3711 struct qeth_ipaddr *addr;
3712 struct qeth_card *card;
3713
4a71df50
FB		 3714
3715 card = qeth_l3_get_card_from_dev(dev);
3716 if (!card)
3717 return NOTIFY_DONE;
847a50fd 3718 QETH_CARD_TEXT(card, 3, "ip6event");
4a71df50
FB		 3719 if (!qeth_is_supported(card, IPA_IPV6))
3720 return NOTIFY_DONE;
3721
3722 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3723 if (addr != NULL) {
3724 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3725 addr->u.a6.pfxlen = ifa->prefix_len;
3726 addr->type = QETH_IP_TYPE_NORMAL;
3727 } else
3728 goto out;
3729
3730 switch (event) {
3731 case NETDEV_UP:
3732 if (!qeth_l3_add_ip(card, addr))
3733 kfree(addr);
3734 break;
3735 case NETDEV_DOWN:
3736 if (!qeth_l3_delete_ip(card, addr))
3737 kfree(addr);
3738 break;
3739 default:
3740 break;
3741 }
3742 qeth_l3_set_ip_addr_list(card);
3743out:
3744 return NOTIFY_DONE;
3745}
3746
3747static struct notifier_block qeth_l3_ip6_notifier = {
3748 qeth_l3_ip6_event,
3749 NULL,
3750};
3751#endif
3752
3753static int qeth_l3_register_notifiers(void)
3754{
3755 int rc;
3756
847a50fd 3757 QETH_DBF_TEXT(SETUP, 5, "regnotif");
4a71df50
FB		 3758 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3759 if (rc)
3760 return rc;
3761#ifdef CONFIG_QETH_IPV6
3762 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3763 if (rc) {
3764 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3765 return rc;
3766 }
3767#else
74eacdb9 3768 pr_warning("There is no IPv6 support for the layer 3 discipline\n");
4a71df50
FB		 3769#endif
3770 return 0;
3771}
3772
3773static void qeth_l3_unregister_notifiers(void)
3774{
3775
847a50fd 3776 QETH_DBF_TEXT(SETUP, 5, "unregnot");
4a71df50
FB		 3777 BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3778#ifdef CONFIG_QETH_IPV6
3779 BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3780#endif /* QETH_IPV6 */
3781}
3782
3783static int __init qeth_l3_init(void)
3784{
3785 int rc = 0;
3786
74eacdb9 3787 pr_info("register layer 3 discipline\n");
4a71df50
FB		 3788 rc = qeth_l3_register_notifiers();
3789 return rc;
3790}
3791
3792static void __exit qeth_l3_exit(void)
3793{
3794 qeth_l3_unregister_notifiers();
74eacdb9 3795 pr_info("unregister layer 3 discipline\n");
4a71df50
FB		 3796}
3797
3798module_init(qeth_l3_init);
3799module_exit(qeth_l3_exit);
3800MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3801MODULE_DESCRIPTION("qeth layer 3 discipline");
3802MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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