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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / s390 / net / qeth_l3_main.c
blobe22ae248f613eea825eaf8fe48f02bbd078f9818
1 /*
2 * drivers/s390/net/qeth_l3_main.c
3 *
4 * Copyright IBM Corp. 2007, 2009
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
11 #define KMSG_COMPONENT "qeth"
12 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
13
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>
22 #include <linux/ipv6.h>
23 #include <linux/inetdevice.h>
24 #include <linux/igmp.h>
25 #include <linux/slab.h>
26
27 #include <net/ip.h>
28 #include <net/arp.h>
29 #include <net/ip6_checksum.h>
30
31 #include "qeth_l3.h"
32
33 static int qeth_l3_set_offline(struct ccwgroup_device *);
34 static int qeth_l3_recover(void *);
35 static int qeth_l3_stop(struct net_device *);
36 static void qeth_l3_set_multicast_list(struct net_device *);
37 static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
38 static int qeth_l3_register_addr_entry(struct qeth_card *,
39 struct qeth_ipaddr *);
40 static int qeth_l3_deregister_addr_entry(struct qeth_card *,
41 struct qeth_ipaddr *);
42 static int __qeth_l3_set_online(struct ccwgroup_device *, int);
43 static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
44
45 int qeth_l3_set_large_send(struct qeth_card *card,
46 enum qeth_large_send_types type)
47 {
48 int rc = 0;
49
50 card->options.large_send = type;
51 if (card->dev == NULL)
52 return 0;
53
54 if (card->options.large_send == QETH_LARGE_SEND_TSO) {
55 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
56 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
57 NETIF_F_IP_CSUM;
58 } else {
59 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
60 NETIF_F_IP_CSUM);
61 card->options.large_send = QETH_LARGE_SEND_NO;
62 rc = -EOPNOTSUPP;
63 }
64 } else {
65 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
66 NETIF_F_IP_CSUM);
67 card->options.large_send = QETH_LARGE_SEND_NO;
68 }
69 return rc;
70 }
71
72 static int qeth_l3_isxdigit(char *buf)
73 {
74 while (*buf) {
75 if (!isxdigit(*buf++))
76 return 0;
77 }
78 return 1;
79 }
80
81 void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
82 {
83 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
84 }
85
86 int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
87 {
88 int count = 0, rc = 0;
89 int in[4];
90 char c;
91
92 rc = sscanf(buf, "%u.%u.%u.%u%c",
93 &in[0], &in[1], &in[2], &in[3], &c);
94 if (rc != 4 && (rc != 5 || c != '\n'))
95 return -EINVAL;
96 for (count = 0; count < 4; count++) {
97 if (in[count] > 255)
98 return -EINVAL;
99 addr[count] = in[count];
100 }
101 return 0;
102 }
103
104 void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
105 {
106 sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
107 ":%02x%02x:%02x%02x:%02x%02x:%02x%02x",
108 addr[0], addr[1], addr[2], addr[3],
109 addr[4], addr[5], addr[6], addr[7],
110 addr[8], addr[9], addr[10], addr[11],
111 addr[12], addr[13], addr[14], addr[15]);
112 }
113
114 int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
115 {
116 const char *end, *end_tmp, *start;
117 __u16 *in;
118 char num[5];
119 int num2, cnt, out, found, save_cnt;
120 unsigned short in_tmp[8] = {0, };
121
122 cnt = out = found = save_cnt = num2 = 0;
123 end = start = buf;
124 in = (__u16 *) addr;
125 memset(in, 0, 16);
126 while (*end) {
127 end = strchr(start, ':');
128 if (end == NULL) {
129 end = buf + strlen(buf);
130 end_tmp = strchr(start, '\n');
131 if (end_tmp != NULL)
132 end = end_tmp;
133 out = 1;
134 }
135 if ((end - start)) {
136 memset(num, 0, 5);
137 if ((end - start) > 4)
138 return -EINVAL;
139 memcpy(num, start, end - start);
140 if (!qeth_l3_isxdigit(num))
141 return -EINVAL;
142 sscanf(start, "%x", &num2);
143 if (found)
144 in_tmp[save_cnt++] = num2;
145 else
146 in[cnt++] = num2;
147 if (out)
148 break;
149 } else {
150 if (found)
151 return -EINVAL;
152 found = 1;
153 }
154 start = ++end;
155 }
156 if (cnt + save_cnt > 8)
157 return -EINVAL;
158 cnt = 7;
159 while (save_cnt)
160 in[cnt--] = in_tmp[--save_cnt];
161 return 0;
162 }
163
164 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
165 char *buf)
166 {
167 if (proto == QETH_PROT_IPV4)
168 qeth_l3_ipaddr4_to_string(addr, buf);
169 else if (proto == QETH_PROT_IPV6)
170 qeth_l3_ipaddr6_to_string(addr, buf);
171 }
172
173 int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
174 __u8 *addr)
175 {
176 if (proto == QETH_PROT_IPV4)
177 return qeth_l3_string_to_ipaddr4(buf, addr);
178 else if (proto == QETH_PROT_IPV6)
179 return qeth_l3_string_to_ipaddr6(buf, addr);
180 else
181 return -EINVAL;
182 }
183
184 static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
185 {
186 int i, j;
187 u8 octet;
188
189 for (i = 0; i < len; ++i) {
190 octet = addr[i];
191 for (j = 7; j >= 0; --j) {
192 bits[i*8 + j] = octet & 1;
193 octet >>= 1;
194 }
195 }
196 }
197
198 int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
199 struct qeth_ipaddr *addr)
200 {
201 struct qeth_ipato_entry *ipatoe;
202 u8 addr_bits[128] = {0, };
203 u8 ipatoe_bits[128] = {0, };
204 int rc = 0;
205
206 if (!card->ipato.enabled)
207 return 0;
208
209 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
210 (addr->proto == QETH_PROT_IPV4)? 4:16);
211 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
212 if (addr->proto != ipatoe->proto)
213 continue;
214 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
215 (ipatoe->proto == QETH_PROT_IPV4) ?
216 4 : 16);
217 if (addr->proto == QETH_PROT_IPV4)
218 rc = !memcmp(addr_bits, ipatoe_bits,
219 min(32, ipatoe->mask_bits));
220 else
221 rc = !memcmp(addr_bits, ipatoe_bits,
222 min(128, ipatoe->mask_bits));
223 if (rc)
224 break;
225 }
226 /* invert? */
227 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
228 rc = !rc;
229 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
230 rc = !rc;
231
232 return rc;
233 }
234
235 /*
236 * Add IP to be added to todo list. If there is already an "add todo"
237 * in this list we just incremenent the reference count.
238 * Returns 0 if we just incremented reference count.
239 */
240 static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
241 struct qeth_ipaddr *addr, int add)
242 {
243 struct qeth_ipaddr *tmp, *t;
244 int found = 0;
245
246 if (card->options.sniffer)
247 return 0;
248 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
249 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
250 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
251 return 0;
252 if ((tmp->proto == QETH_PROT_IPV4) &&
253 (addr->proto == QETH_PROT_IPV4) &&
254 (tmp->type == addr->type) &&
255 (tmp->is_multicast == addr->is_multicast) &&
256 (tmp->u.a4.addr == addr->u.a4.addr) &&
257 (tmp->u.a4.mask == addr->u.a4.mask)) {
258 found = 1;
259 break;
260 }
261 if ((tmp->proto == QETH_PROT_IPV6) &&
262 (addr->proto == QETH_PROT_IPV6) &&
263 (tmp->type == addr->type) &&
264 (tmp->is_multicast == addr->is_multicast) &&
265 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
266 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
267 sizeof(struct in6_addr)) == 0)) {
268 found = 1;
269 break;
270 }
271 }
272 if (found) {
273 if (addr->users != 0)
274 tmp->users += addr->users;
275 else
276 tmp->users += add ? 1 : -1;
277 if (tmp->users == 0) {
278 list_del(&tmp->entry);
279 kfree(tmp);
280 }
281 return 0;
282 } else {
283 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
284 list_add(&addr->entry, card->ip_tbd_list);
285 else {
286 if (addr->users == 0)
287 addr->users += add ? 1 : -1;
288 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
289 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
290 QETH_CARD_TEXT(card, 2, "tkovaddr");
291 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
292 }
293 list_add_tail(&addr->entry, card->ip_tbd_list);
294 }
295 return 1;
296 }
297 }
298
299 static int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
300 {
301 unsigned long flags;
302 int rc = 0;
303
304 QETH_CARD_TEXT(card, 4, "delip");
305
306 if (addr->proto == QETH_PROT_IPV4)
307 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
308 else {
309 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
310 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
311 }
312 spin_lock_irqsave(&card->ip_lock, flags);
313 rc = __qeth_l3_insert_ip_todo(card, addr, 0);
314 spin_unlock_irqrestore(&card->ip_lock, flags);
315 return rc;
316 }
317
318 static int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
319 {
320 unsigned long flags;
321 int rc = 0;
322
323 QETH_CARD_TEXT(card, 4, "addip");
324 if (addr->proto == QETH_PROT_IPV4)
325 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
326 else {
327 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
328 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
329 }
330 spin_lock_irqsave(&card->ip_lock, flags);
331 rc = __qeth_l3_insert_ip_todo(card, addr, 1);
332 spin_unlock_irqrestore(&card->ip_lock, flags);
333 return rc;
334 }
335
336
337 static struct qeth_ipaddr *qeth_l3_get_addr_buffer(
338 enum qeth_prot_versions prot)
339 {
340 struct qeth_ipaddr *addr;
341
342 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
343 if (addr == NULL) {
344 return NULL;
345 }
346 addr->type = QETH_IP_TYPE_NORMAL;
347 addr->proto = prot;
348 return addr;
349 }
350
351 static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
352 {
353 struct qeth_ipaddr *iptodo;
354 unsigned long flags;
355
356 QETH_CARD_TEXT(card, 4, "delmc");
357 iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
358 if (!iptodo) {
359 QETH_CARD_TEXT(card, 2, "dmcnomem");
360 return;
361 }
362 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
363 spin_lock_irqsave(&card->ip_lock, flags);
364 if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
365 kfree(iptodo);
366 spin_unlock_irqrestore(&card->ip_lock, flags);
367 }
368
369 /*
370 * Add/remove address to/from card's ip list, i.e. try to add or remove
371 * reference to/from an IP address that is already registered on the card.
372 * Returns:
373 * 0 address was on card and its reference count has been adjusted,
374 * but is still > 0, so nothing has to be done
375 * also returns 0 if card was not on card and the todo was to delete
376 * the address -> there is also nothing to be done
377 * 1 address was not on card and the todo is to add it to the card's ip
378 * list
379 * -1 address was on card and its reference count has been decremented
380 * to <= 0 by the todo -> address must be removed from card
381 */
382 static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
383 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
384 {
385 struct qeth_ipaddr *addr;
386 int found = 0;
387
388 list_for_each_entry(addr, &card->ip_list, entry) {
389 if ((addr->proto == QETH_PROT_IPV4) &&
390 (todo->proto == QETH_PROT_IPV4) &&
391 (addr->type == todo->type) &&
392 (addr->u.a4.addr == todo->u.a4.addr) &&
393 (addr->u.a4.mask == todo->u.a4.mask)) {
394 found = 1;
395 break;
396 }
397 if ((addr->proto == QETH_PROT_IPV6) &&
398 (todo->proto == QETH_PROT_IPV6) &&
399 (addr->type == todo->type) &&
400 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
401 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
402 sizeof(struct in6_addr)) == 0)) {
403 found = 1;
404 break;
405 }
406 }
407 if (found) {
408 addr->users += todo->users;
409 if (addr->users <= 0) {
410 *__addr = addr;
411 return -1;
412 } else {
413 /* for VIPA and RXIP limit refcount to 1 */
414 if (addr->type != QETH_IP_TYPE_NORMAL)
415 addr->users = 1;
416 return 0;
417 }
418 }
419 if (todo->users > 0) {
420 /* for VIPA and RXIP limit refcount to 1 */
421 if (todo->type != QETH_IP_TYPE_NORMAL)
422 todo->users = 1;
423 return 1;
424 } else
425 return 0;
426 }
427
428 static void __qeth_l3_delete_all_mc(struct qeth_card *card,
429 unsigned long *flags)
430 {
431 struct list_head fail_list;
432 struct qeth_ipaddr *addr, *tmp;
433 int rc;
434
435 INIT_LIST_HEAD(&fail_list);
436 again:
437 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
438 if (addr->is_multicast) {
439 list_del(&addr->entry);
440 spin_unlock_irqrestore(&card->ip_lock, *flags);
441 rc = qeth_l3_deregister_addr_entry(card, addr);
442 spin_lock_irqsave(&card->ip_lock, *flags);
443 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
444 kfree(addr);
445 else
446 list_add_tail(&addr->entry, &fail_list);
447 goto again;
448 }
449 }
450 list_splice(&fail_list, &card->ip_list);
451 }
452
453 static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
454 {
455 struct list_head *tbd_list;
456 struct qeth_ipaddr *todo, *addr;
457 unsigned long flags;
458 int rc;
459
460 QETH_CARD_TEXT(card, 2, "sdiplist");
461 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
462
463 if (card->options.sniffer)
464 return;
465 spin_lock_irqsave(&card->ip_lock, flags);
466 tbd_list = card->ip_tbd_list;
467 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
468 if (!card->ip_tbd_list) {
469 QETH_CARD_TEXT(card, 0, "silnomem");
470 card->ip_tbd_list = tbd_list;
471 spin_unlock_irqrestore(&card->ip_lock, flags);
472 return;
473 } else
474 INIT_LIST_HEAD(card->ip_tbd_list);
475
476 while (!list_empty(tbd_list)) {
477 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
478 list_del(&todo->entry);
479 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
480 __qeth_l3_delete_all_mc(card, &flags);
481 kfree(todo);
482 continue;
483 }
484 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
485 if (rc == 0) {
486 /* nothing to be done; only adjusted refcount */
487 kfree(todo);
488 } else if (rc == 1) {
489 /* new entry to be added to on-card list */
490 spin_unlock_irqrestore(&card->ip_lock, flags);
491 rc = qeth_l3_register_addr_entry(card, todo);
492 spin_lock_irqsave(&card->ip_lock, flags);
493 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
494 list_add_tail(&todo->entry, &card->ip_list);
495 else
496 kfree(todo);
497 } else if (rc == -1) {
498 /* on-card entry to be removed */
499 list_del_init(&addr->entry);
500 spin_unlock_irqrestore(&card->ip_lock, flags);
501 rc = qeth_l3_deregister_addr_entry(card, addr);
502 spin_lock_irqsave(&card->ip_lock, flags);
503 if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
504 kfree(addr);
505 else
506 list_add_tail(&addr->entry, &card->ip_list);
507 kfree(todo);
508 }
509 }
510 spin_unlock_irqrestore(&card->ip_lock, flags);
511 kfree(tbd_list);
512 }
513
514 static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean,
515 int recover)
516 {
517 struct qeth_ipaddr *addr, *tmp;
518 unsigned long flags;
519
520 QETH_CARD_TEXT(card, 4, "clearip");
521 if (recover && card->options.sniffer)
522 return;
523 spin_lock_irqsave(&card->ip_lock, flags);
524 /* clear todo list */
525 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
526 list_del(&addr->entry);
527 kfree(addr);
528 }
529
530 while (!list_empty(&card->ip_list)) {
531 addr = list_entry(card->ip_list.next,
532 struct qeth_ipaddr, entry);
533 list_del_init(&addr->entry);
534 if (clean) {
535 spin_unlock_irqrestore(&card->ip_lock, flags);
536 qeth_l3_deregister_addr_entry(card, addr);
537 spin_lock_irqsave(&card->ip_lock, flags);
538 }
539 if (!recover || addr->is_multicast) {
540 kfree(addr);
541 continue;
542 }
543 list_add_tail(&addr->entry, card->ip_tbd_list);
544 }
545 spin_unlock_irqrestore(&card->ip_lock, flags);
546 }
547
548 static int qeth_l3_address_exists_in_list(struct list_head *list,
549 struct qeth_ipaddr *addr, int same_type)
550 {
551 struct qeth_ipaddr *tmp;
552
553 list_for_each_entry(tmp, list, entry) {
554 if ((tmp->proto == QETH_PROT_IPV4) &&
555 (addr->proto == QETH_PROT_IPV4) &&
556 ((same_type && (tmp->type == addr->type)) ||
557 (!same_type && (tmp->type != addr->type))) &&
558 (tmp->u.a4.addr == addr->u.a4.addr))
559 return 1;
560
561 if ((tmp->proto == QETH_PROT_IPV6) &&
562 (addr->proto == QETH_PROT_IPV6) &&
563 ((same_type && (tmp->type == addr->type)) ||
564 (!same_type && (tmp->type != addr->type))) &&
565 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
566 sizeof(struct in6_addr)) == 0))
567 return 1;
568
569 }
570 return 0;
571 }
572
573 static int qeth_l3_send_setdelmc(struct qeth_card *card,
574 struct qeth_ipaddr *addr, int ipacmd)
575 {
576 int rc;
577 struct qeth_cmd_buffer *iob;
578 struct qeth_ipa_cmd *cmd;
579
580 QETH_CARD_TEXT(card, 4, "setdelmc");
581
582 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
583 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
584 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
585 if (addr->proto == QETH_PROT_IPV6)
586 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
587 sizeof(struct in6_addr));
588 else
589 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
590
591 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
592
593 return rc;
594 }
595
596 static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
597 {
598 int i, j;
599 for (i = 0; i < 16; i++) {
600 j = (len) - (i * 8);
601 if (j >= 8)
602 netmask[i] = 0xff;
603 else if (j > 0)
604 netmask[i] = (u8)(0xFF00 >> j);
605 else
606 netmask[i] = 0;
607 }
608 }
609
610 static int qeth_l3_send_setdelip(struct qeth_card *card,
611 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
612 {
613 int rc;
614 struct qeth_cmd_buffer *iob;
615 struct qeth_ipa_cmd *cmd;
616 __u8 netmask[16];
617
618 QETH_CARD_TEXT(card, 4, "setdelip");
619 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
620
621 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
622 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
623 if (addr->proto == QETH_PROT_IPV6) {
624 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
625 sizeof(struct in6_addr));
626 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
627 memcpy(cmd->data.setdelip6.mask, netmask,
628 sizeof(struct in6_addr));
629 cmd->data.setdelip6.flags = flags;
630 } else {
631 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
632 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
633 cmd->data.setdelip4.flags = flags;
634 }
635
636 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
637
638 return rc;
639 }
640
641 static int qeth_l3_send_setrouting(struct qeth_card *card,
642 enum qeth_routing_types type, enum qeth_prot_versions prot)
643 {
644 int rc;
645 struct qeth_ipa_cmd *cmd;
646 struct qeth_cmd_buffer *iob;
647
648 QETH_CARD_TEXT(card, 4, "setroutg");
649 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
650 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
651 cmd->data.setrtg.type = (type);
652 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
653
654 return rc;
655 }
656
657 static void qeth_l3_correct_routing_type(struct qeth_card *card,
658 enum qeth_routing_types *type, enum qeth_prot_versions prot)
659 {
660 if (card->info.type == QETH_CARD_TYPE_IQD) {
661 switch (*type) {
662 case NO_ROUTER:
663 case PRIMARY_CONNECTOR:
664 case SECONDARY_CONNECTOR:
665 case MULTICAST_ROUTER:
666 return;
667 default:
668 goto out_inval;
669 }
670 } else {
671 switch (*type) {
672 case NO_ROUTER:
673 case PRIMARY_ROUTER:
674 case SECONDARY_ROUTER:
675 return;
676 case MULTICAST_ROUTER:
677 if (qeth_is_ipafunc_supported(card, prot,
678 IPA_OSA_MC_ROUTER))
679 return;
680 default:
681 goto out_inval;
682 }
683 }
684 out_inval:
685 *type = NO_ROUTER;
686 }
687
688 int qeth_l3_setrouting_v4(struct qeth_card *card)
689 {
690 int rc;
691
692 QETH_CARD_TEXT(card, 3, "setrtg4");
693
694 qeth_l3_correct_routing_type(card, &card->options.route4.type,
695 QETH_PROT_IPV4);
696
697 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
698 QETH_PROT_IPV4);
699 if (rc) {
700 card->options.route4.type = NO_ROUTER;
701 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
702 " on %s. Type set to 'no router'.\n", rc,
703 QETH_CARD_IFNAME(card));
704 }
705 return rc;
706 }
707
708 int qeth_l3_setrouting_v6(struct qeth_card *card)
709 {
710 int rc = 0;
711
712 QETH_CARD_TEXT(card, 3, "setrtg6");
713 #ifdef CONFIG_QETH_IPV6
714
715 if (!qeth_is_supported(card, IPA_IPV6))
716 return 0;
717 qeth_l3_correct_routing_type(card, &card->options.route6.type,
718 QETH_PROT_IPV6);
719
720 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
721 QETH_PROT_IPV6);
722 if (rc) {
723 card->options.route6.type = NO_ROUTER;
724 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
725 " on %s. Type set to 'no router'.\n", rc,
726 QETH_CARD_IFNAME(card));
727 }
728 #endif
729 return rc;
730 }
731
732 /*
733 * IP address takeover related functions
734 */
735 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
736 {
737
738 struct qeth_ipato_entry *ipatoe, *tmp;
739 unsigned long flags;
740
741 spin_lock_irqsave(&card->ip_lock, flags);
742 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
743 list_del(&ipatoe->entry);
744 kfree(ipatoe);
745 }
746 spin_unlock_irqrestore(&card->ip_lock, flags);
747 }
748
749 int qeth_l3_add_ipato_entry(struct qeth_card *card,
750 struct qeth_ipato_entry *new)
751 {
752 struct qeth_ipato_entry *ipatoe;
753 unsigned long flags;
754 int rc = 0;
755
756 QETH_CARD_TEXT(card, 2, "addipato");
757 spin_lock_irqsave(&card->ip_lock, flags);
758 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
759 if (ipatoe->proto != new->proto)
760 continue;
761 if (!memcmp(ipatoe->addr, new->addr,
762 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
763 (ipatoe->mask_bits == new->mask_bits)) {
764 rc = -EEXIST;
765 break;
766 }
767 }
768 if (!rc)
769 list_add_tail(&new->entry, &card->ipato.entries);
770
771 spin_unlock_irqrestore(&card->ip_lock, flags);
772 return rc;
773 }
774
775 void qeth_l3_del_ipato_entry(struct qeth_card *card,
776 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
777 {
778 struct qeth_ipato_entry *ipatoe, *tmp;
779 unsigned long flags;
780
781 QETH_CARD_TEXT(card, 2, "delipato");
782 spin_lock_irqsave(&card->ip_lock, flags);
783 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
784 if (ipatoe->proto != proto)
785 continue;
786 if (!memcmp(ipatoe->addr, addr,
787 (proto == QETH_PROT_IPV4)? 4:16) &&
788 (ipatoe->mask_bits == mask_bits)) {
789 list_del(&ipatoe->entry);
790 kfree(ipatoe);
791 }
792 }
793 spin_unlock_irqrestore(&card->ip_lock, flags);
794 }
795
796 /*
797 * VIPA related functions
798 */
799 int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
800 const u8 *addr)
801 {
802 struct qeth_ipaddr *ipaddr;
803 unsigned long flags;
804 int rc = 0;
805
806 ipaddr = qeth_l3_get_addr_buffer(proto);
807 if (ipaddr) {
808 if (proto == QETH_PROT_IPV4) {
809 QETH_CARD_TEXT(card, 2, "addvipa4");
810 memcpy(&ipaddr->u.a4.addr, addr, 4);
811 ipaddr->u.a4.mask = 0;
812 } else if (proto == QETH_PROT_IPV6) {
813 QETH_CARD_TEXT(card, 2, "addvipa6");
814 memcpy(&ipaddr->u.a6.addr, addr, 16);
815 ipaddr->u.a6.pfxlen = 0;
816 }
817 ipaddr->type = QETH_IP_TYPE_VIPA;
818 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
819 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
820 } else
821 return -ENOMEM;
822 spin_lock_irqsave(&card->ip_lock, flags);
823 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
824 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
825 rc = -EEXIST;
826 spin_unlock_irqrestore(&card->ip_lock, flags);
827 if (rc) {
828 return rc;
829 }
830 if (!qeth_l3_add_ip(card, ipaddr))
831 kfree(ipaddr);
832 qeth_l3_set_ip_addr_list(card);
833 return rc;
834 }
835
836 void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
837 const u8 *addr)
838 {
839 struct qeth_ipaddr *ipaddr;
840
841 ipaddr = qeth_l3_get_addr_buffer(proto);
842 if (ipaddr) {
843 if (proto == QETH_PROT_IPV4) {
844 QETH_CARD_TEXT(card, 2, "delvipa4");
845 memcpy(&ipaddr->u.a4.addr, addr, 4);
846 ipaddr->u.a4.mask = 0;
847 } else if (proto == QETH_PROT_IPV6) {
848 QETH_CARD_TEXT(card, 2, "delvipa6");
849 memcpy(&ipaddr->u.a6.addr, addr, 16);
850 ipaddr->u.a6.pfxlen = 0;
851 }
852 ipaddr->type = QETH_IP_TYPE_VIPA;
853 } else
854 return;
855 if (!qeth_l3_delete_ip(card, ipaddr))
856 kfree(ipaddr);
857 qeth_l3_set_ip_addr_list(card);
858 }
859
860 /*
861 * proxy ARP related functions
862 */
863 int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
864 const u8 *addr)
865 {
866 struct qeth_ipaddr *ipaddr;
867 unsigned long flags;
868 int rc = 0;
869
870 ipaddr = qeth_l3_get_addr_buffer(proto);
871 if (ipaddr) {
872 if (proto == QETH_PROT_IPV4) {
873 QETH_CARD_TEXT(card, 2, "addrxip4");
874 memcpy(&ipaddr->u.a4.addr, addr, 4);
875 ipaddr->u.a4.mask = 0;
876 } else if (proto == QETH_PROT_IPV6) {
877 QETH_CARD_TEXT(card, 2, "addrxip6");
878 memcpy(&ipaddr->u.a6.addr, addr, 16);
879 ipaddr->u.a6.pfxlen = 0;
880 }
881 ipaddr->type = QETH_IP_TYPE_RXIP;
882 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
883 ipaddr->del_flags = 0;
884 } else
885 return -ENOMEM;
886 spin_lock_irqsave(&card->ip_lock, flags);
887 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
888 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
889 rc = -EEXIST;
890 spin_unlock_irqrestore(&card->ip_lock, flags);
891 if (rc) {
892 return rc;
893 }
894 if (!qeth_l3_add_ip(card, ipaddr))
895 kfree(ipaddr);
896 qeth_l3_set_ip_addr_list(card);
897 return 0;
898 }
899
900 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
901 const u8 *addr)
902 {
903 struct qeth_ipaddr *ipaddr;
904
905 ipaddr = qeth_l3_get_addr_buffer(proto);
906 if (ipaddr) {
907 if (proto == QETH_PROT_IPV4) {
908 QETH_CARD_TEXT(card, 2, "addrxip4");
909 memcpy(&ipaddr->u.a4.addr, addr, 4);
910 ipaddr->u.a4.mask = 0;
911 } else if (proto == QETH_PROT_IPV6) {
912 QETH_CARD_TEXT(card, 2, "addrxip6");
913 memcpy(&ipaddr->u.a6.addr, addr, 16);
914 ipaddr->u.a6.pfxlen = 0;
915 }
916 ipaddr->type = QETH_IP_TYPE_RXIP;
917 } else
918 return;
919 if (!qeth_l3_delete_ip(card, ipaddr))
920 kfree(ipaddr);
921 qeth_l3_set_ip_addr_list(card);
922 }
923
924 static int qeth_l3_register_addr_entry(struct qeth_card *card,
925 struct qeth_ipaddr *addr)
926 {
927 char buf[50];
928 int rc = 0;
929 int cnt = 3;
930
931 if (addr->proto == QETH_PROT_IPV4) {
932 QETH_CARD_TEXT(card, 2, "setaddr4");
933 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
934 } else if (addr->proto == QETH_PROT_IPV6) {
935 QETH_CARD_TEXT(card, 2, "setaddr6");
936 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
937 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
938 } else {
939 QETH_CARD_TEXT(card, 2, "setaddr?");
940 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
941 }
942 do {
943 if (addr->is_multicast)
944 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
945 else
946 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
947 addr->set_flags);
948 if (rc)
949 QETH_CARD_TEXT(card, 2, "failed");
950 } while ((--cnt > 0) && rc);
951 if (rc) {
952 QETH_CARD_TEXT(card, 2, "FAILED");
953 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
954 dev_warn(&card->gdev->dev,
955 "Registering IP address %s failed\n", buf);
956 }
957 return rc;
958 }
959
960 static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
961 struct qeth_ipaddr *addr)
962 {
963 int rc = 0;
964
965 if (addr->proto == QETH_PROT_IPV4) {
966 QETH_CARD_TEXT(card, 2, "deladdr4");
967 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
968 } else if (addr->proto == QETH_PROT_IPV6) {
969 QETH_CARD_TEXT(card, 2, "deladdr6");
970 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
971 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
972 } else {
973 QETH_CARD_TEXT(card, 2, "deladdr?");
974 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
975 }
976 if (addr->is_multicast)
977 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
978 else
979 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
980 addr->del_flags);
981 if (rc)
982 QETH_CARD_TEXT(card, 2, "failed");
983
984 return rc;
985 }
986
987 static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
988 {
989 if (cast_type == RTN_MULTICAST)
990 return QETH_CAST_MULTICAST;
991 if (cast_type == RTN_BROADCAST)
992 return QETH_CAST_BROADCAST;
993 return QETH_CAST_UNICAST;
994 }
995
996 static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
997 {
998 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
999 if (cast_type == RTN_MULTICAST)
1000 return ct | QETH_CAST_MULTICAST;
1001 if (cast_type == RTN_ANYCAST)
1002 return ct | QETH_CAST_ANYCAST;
1003 if (cast_type == RTN_BROADCAST)
1004 return ct | QETH_CAST_BROADCAST;
1005 return ct | QETH_CAST_UNICAST;
1006 }
1007
1008 static int qeth_l3_send_setadp_mode(struct qeth_card *card, __u32 command,
1009 __u32 mode)
1010 {
1011 int rc;
1012 struct qeth_cmd_buffer *iob;
1013 struct qeth_ipa_cmd *cmd;
1014
1015 QETH_CARD_TEXT(card, 4, "adpmode");
1016
1017 iob = qeth_get_adapter_cmd(card, command,
1018 sizeof(struct qeth_ipacmd_setadpparms));
1019 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1020 cmd->data.setadapterparms.data.mode = mode;
1021 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
1022 NULL);
1023 return rc;
1024 }
1025
1026 static int qeth_l3_setadapter_hstr(struct qeth_card *card)
1027 {
1028 int rc;
1029
1030 QETH_CARD_TEXT(card, 4, "adphstr");
1031
1032 if (qeth_adp_supported(card, IPA_SETADP_SET_BROADCAST_MODE)) {
1033 rc = qeth_l3_send_setadp_mode(card,
1034 IPA_SETADP_SET_BROADCAST_MODE,
1035 card->options.broadcast_mode);
1036 if (rc)
1037 QETH_DBF_MESSAGE(2, "couldn't set broadcast mode on "
1038 "device %s: x%x\n",
1039 CARD_BUS_ID(card), rc);
1040 rc = qeth_l3_send_setadp_mode(card,
1041 IPA_SETADP_ALTER_MAC_ADDRESS,
1042 card->options.macaddr_mode);
1043 if (rc)
1044 QETH_DBF_MESSAGE(2, "couldn't set macaddr mode on "
1045 "device %s: x%x\n", CARD_BUS_ID(card), rc);
1046 return rc;
1047 }
1048 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
1049 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1050 "to set broadcast mode, using ALLRINGS "
1051 "on device %s:\n", CARD_BUS_ID(card));
1052 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
1053 QETH_DBF_MESSAGE(2, "set adapter parameters not available "
1054 "to set macaddr mode, using NONCANONICAL "
1055 "on device %s:\n", CARD_BUS_ID(card));
1056 return 0;
1057 }
1058
1059 static int qeth_l3_setadapter_parms(struct qeth_card *card)
1060 {
1061 int rc;
1062
1063 QETH_DBF_TEXT(SETUP, 2, "setadprm");
1064
1065 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
1066 dev_info(&card->gdev->dev,
1067 "set adapter parameters not supported.\n");
1068 QETH_DBF_TEXT(SETUP, 2, " notsupp");
1069 return 0;
1070 }
1071 rc = qeth_query_setadapterparms(card);
1072 if (rc) {
1073 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
1074 "0x%x\n", dev_name(&card->gdev->dev), rc);
1075 return rc;
1076 }
1077 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1078 rc = qeth_setadpparms_change_macaddr(card);
1079 if (rc)
1080 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
1081 " address failed\n");
1082 }
1083
1084 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
1085 (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
1086 rc = qeth_l3_setadapter_hstr(card);
1087
1088 return rc;
1089 }
1090
1091 static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1092 struct qeth_reply *reply, unsigned long data)
1093 {
1094 struct qeth_ipa_cmd *cmd;
1095
1096 QETH_CARD_TEXT(card, 4, "defadpcb");
1097
1098 cmd = (struct qeth_ipa_cmd *) data;
1099 if (cmd->hdr.return_code == 0) {
1100 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1101 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1102 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1103 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1104 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1105 }
1106 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1107 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1108 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
1109 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
1110 }
1111 if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1112 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1113 card->info.tx_csum_mask =
1114 cmd->data.setassparms.data.flags_32bit;
1115 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
1116 }
1117
1118 return 0;
1119 }
1120
1121 static struct qeth_cmd_buffer *qeth_l3_get_setassparms_cmd(
1122 struct qeth_card *card, enum qeth_ipa_funcs ipa_func, __u16 cmd_code,
1123 __u16 len, enum qeth_prot_versions prot)
1124 {
1125 struct qeth_cmd_buffer *iob;
1126 struct qeth_ipa_cmd *cmd;
1127
1128 QETH_CARD_TEXT(card, 4, "getasscm");
1129 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
1130
1131 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1132 cmd->data.setassparms.hdr.assist_no = ipa_func;
1133 cmd->data.setassparms.hdr.length = 8 + len;
1134 cmd->data.setassparms.hdr.command_code = cmd_code;
1135 cmd->data.setassparms.hdr.return_code = 0;
1136 cmd->data.setassparms.hdr.seq_no = 0;
1137
1138 return iob;
1139 }
1140
1141 static int qeth_l3_send_setassparms(struct qeth_card *card,
1142 struct qeth_cmd_buffer *iob, __u16 len, long data,
1143 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1144 unsigned long),
1145 void *reply_param)
1146 {
1147 int rc;
1148 struct qeth_ipa_cmd *cmd;
1149
1150 QETH_CARD_TEXT(card, 4, "sendassp");
1151
1152 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1153 if (len <= sizeof(__u32))
1154 cmd->data.setassparms.data.flags_32bit = (__u32) data;
1155 else /* (len > sizeof(__u32)) */
1156 memcpy(&cmd->data.setassparms.data, (void *) data, len);
1157
1158 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
1159 return rc;
1160 }
1161
1162 #ifdef CONFIG_QETH_IPV6
1163 static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1164 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1165 {
1166 int rc;
1167 struct qeth_cmd_buffer *iob;
1168
1169 QETH_CARD_TEXT(card, 4, "simassp6");
1170 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1171 0, QETH_PROT_IPV6);
1172 rc = qeth_l3_send_setassparms(card, iob, 0, 0,
1173 qeth_l3_default_setassparms_cb, NULL);
1174 return rc;
1175 }
1176 #endif
1177
1178 static int qeth_l3_send_simple_setassparms(struct qeth_card *card,
1179 enum qeth_ipa_funcs ipa_func, __u16 cmd_code, long data)
1180 {
1181 int rc;
1182 int length = 0;
1183 struct qeth_cmd_buffer *iob;
1184
1185 QETH_CARD_TEXT(card, 4, "simassp4");
1186 if (data)
1187 length = sizeof(__u32);
1188 iob = qeth_l3_get_setassparms_cmd(card, ipa_func, cmd_code,
1189 length, QETH_PROT_IPV4);
1190 rc = qeth_l3_send_setassparms(card, iob, length, data,
1191 qeth_l3_default_setassparms_cb, NULL);
1192 return rc;
1193 }
1194
1195 static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1196 {
1197 int rc;
1198
1199 QETH_CARD_TEXT(card, 3, "ipaarp");
1200
1201 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
1202 dev_info(&card->gdev->dev,
1203 "ARP processing not supported on %s!\n",
1204 QETH_CARD_IFNAME(card));
1205 return 0;
1206 }
1207 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1208 IPA_CMD_ASS_START, 0);
1209 if (rc) {
1210 dev_warn(&card->gdev->dev,
1211 "Starting ARP processing support for %s failed\n",
1212 QETH_CARD_IFNAME(card));
1213 }
1214 return rc;
1215 }
1216
1217 static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1218 {
1219 int rc;
1220
1221 QETH_CARD_TEXT(card, 3, "ipaipfrg");
1222
1223 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
1224 dev_info(&card->gdev->dev,
1225 "Hardware IP fragmentation not supported on %s\n",
1226 QETH_CARD_IFNAME(card));
1227 return -EOPNOTSUPP;
1228 }
1229
1230 rc = qeth_l3_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1231 IPA_CMD_ASS_START, 0);
1232 if (rc) {
1233 dev_warn(&card->gdev->dev,
1234 "Starting IP fragmentation support for %s failed\n",
1235 QETH_CARD_IFNAME(card));
1236 } else
1237 dev_info(&card->gdev->dev,
1238 "Hardware IP fragmentation enabled \n");
1239 return rc;
1240 }
1241
1242 static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1243 {
1244 int rc;
1245
1246 QETH_CARD_TEXT(card, 3, "stsrcmac");
1247
1248 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1249 dev_info(&card->gdev->dev,
1250 "Inbound source MAC-address not supported on %s\n",
1251 QETH_CARD_IFNAME(card));
1252 return -EOPNOTSUPP;
1253 }
1254
1255 rc = qeth_l3_send_simple_setassparms(card, IPA_SOURCE_MAC,
1256 IPA_CMD_ASS_START, 0);
1257 if (rc)
1258 dev_warn(&card->gdev->dev,
1259 "Starting source MAC-address support for %s failed\n",
1260 QETH_CARD_IFNAME(card));
1261 return rc;
1262 }
1263
1264 static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1265 {
1266 int rc = 0;
1267
1268 QETH_CARD_TEXT(card, 3, "strtvlan");
1269
1270 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1271 dev_info(&card->gdev->dev,
1272 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1273 return -EOPNOTSUPP;
1274 }
1275
1276 rc = qeth_l3_send_simple_setassparms(card, IPA_VLAN_PRIO,
1277 IPA_CMD_ASS_START, 0);
1278 if (rc) {
1279 dev_warn(&card->gdev->dev,
1280 "Starting VLAN support for %s failed\n",
1281 QETH_CARD_IFNAME(card));
1282 } else {
1283 dev_info(&card->gdev->dev, "VLAN enabled\n");
1284 }
1285 return rc;
1286 }
1287
1288 static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1289 {
1290 int rc;
1291
1292 QETH_CARD_TEXT(card, 3, "stmcast");
1293
1294 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1295 dev_info(&card->gdev->dev,
1296 "Multicast not supported on %s\n",
1297 QETH_CARD_IFNAME(card));
1298 return -EOPNOTSUPP;
1299 }
1300
1301 rc = qeth_l3_send_simple_setassparms(card, IPA_MULTICASTING,
1302 IPA_CMD_ASS_START, 0);
1303 if (rc) {
1304 dev_warn(&card->gdev->dev,
1305 "Starting multicast support for %s failed\n",
1306 QETH_CARD_IFNAME(card));
1307 } else {
1308 dev_info(&card->gdev->dev, "Multicast enabled\n");
1309 card->dev->flags |= IFF_MULTICAST;
1310 }
1311 return rc;
1312 }
1313
1314 static int qeth_l3_query_ipassists_cb(struct qeth_card *card,
1315 struct qeth_reply *reply, unsigned long data)
1316 {
1317 struct qeth_ipa_cmd *cmd;
1318
1319 QETH_DBF_TEXT(SETUP, 2, "qipasscb");
1320
1321 cmd = (struct qeth_ipa_cmd *) data;
1322 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
1323 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
1324 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1325 } else {
1326 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
1327 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1328 }
1329 QETH_DBF_TEXT(SETUP, 2, "suppenbl");
1330 QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_supported);
1331 QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_enabled);
1332 return 0;
1333 }
1334
1335 static int qeth_l3_query_ipassists(struct qeth_card *card,
1336 enum qeth_prot_versions prot)
1337 {
1338 int rc;
1339 struct qeth_cmd_buffer *iob;
1340
1341 QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
1342 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
1343 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_query_ipassists_cb, NULL);
1344 return rc;
1345 }
1346
1347 #ifdef CONFIG_QETH_IPV6
1348 static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1349 {
1350 int rc;
1351
1352 QETH_CARD_TEXT(card, 3, "softipv6");
1353
1354 if (card->info.type == QETH_CARD_TYPE_IQD)
1355 goto out;
1356
1357 rc = qeth_l3_query_ipassists(card, QETH_PROT_IPV6);
1358 if (rc) {
1359 dev_err(&card->gdev->dev,
1360 "Activating IPv6 support for %s failed\n",
1361 QETH_CARD_IFNAME(card));
1362 return rc;
1363 }
1364 rc = qeth_l3_send_simple_setassparms(card, IPA_IPV6,
1365 IPA_CMD_ASS_START, 3);
1366 if (rc) {
1367 dev_err(&card->gdev->dev,
1368 "Activating IPv6 support for %s failed\n",
1369 QETH_CARD_IFNAME(card));
1370 return rc;
1371 }
1372 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1373 IPA_CMD_ASS_START);
1374 if (rc) {
1375 dev_err(&card->gdev->dev,
1376 "Activating IPv6 support for %s failed\n",
1377 QETH_CARD_IFNAME(card));
1378 return rc;
1379 }
1380 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1381 IPA_CMD_ASS_START);
1382 if (rc) {
1383 dev_warn(&card->gdev->dev,
1384 "Enabling the passthrough mode for %s failed\n",
1385 QETH_CARD_IFNAME(card));
1386 return rc;
1387 }
1388 out:
1389 dev_info(&card->gdev->dev, "IPV6 enabled\n");
1390 return 0;
1391 }
1392 #endif
1393
1394 static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1395 {
1396 int rc = 0;
1397
1398 QETH_CARD_TEXT(card, 3, "strtipv6");
1399
1400 if (!qeth_is_supported(card, IPA_IPV6)) {
1401 dev_info(&card->gdev->dev,
1402 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1403 return 0;
1404 }
1405 #ifdef CONFIG_QETH_IPV6
1406 rc = qeth_l3_softsetup_ipv6(card);
1407 #endif
1408 return rc ;
1409 }
1410
1411 static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1412 {
1413 int rc;
1414
1415 QETH_CARD_TEXT(card, 3, "stbrdcst");
1416 card->info.broadcast_capable = 0;
1417 if (!qeth_is_supported(card, IPA_FILTERING)) {
1418 dev_info(&card->gdev->dev,
1419 "Broadcast not supported on %s\n",
1420 QETH_CARD_IFNAME(card));
1421 rc = -EOPNOTSUPP;
1422 goto out;
1423 }
1424 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1425 IPA_CMD_ASS_START, 0);
1426 if (rc) {
1427 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1428 "%s failed\n", QETH_CARD_IFNAME(card));
1429 goto out;
1430 }
1431
1432 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1433 IPA_CMD_ASS_CONFIGURE, 1);
1434 if (rc) {
1435 dev_warn(&card->gdev->dev,
1436 "Setting up broadcast filtering for %s failed\n",
1437 QETH_CARD_IFNAME(card));
1438 goto out;
1439 }
1440 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1441 dev_info(&card->gdev->dev, "Broadcast enabled\n");
1442 rc = qeth_l3_send_simple_setassparms(card, IPA_FILTERING,
1443 IPA_CMD_ASS_ENABLE, 1);
1444 if (rc) {
1445 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1446 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1447 goto out;
1448 }
1449 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1450 out:
1451 if (card->info.broadcast_capable)
1452 card->dev->flags |= IFF_BROADCAST;
1453 else
1454 card->dev->flags &= ~IFF_BROADCAST;
1455 return rc;
1456 }
1457
1458 static int qeth_l3_send_checksum_command(struct qeth_card *card)
1459 {
1460 int rc;
1461
1462 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1463 IPA_CMD_ASS_START, 0);
1464 if (rc) {
1465 dev_warn(&card->gdev->dev, "Starting HW checksumming for %s "
1466 "failed, using SW checksumming\n",
1467 QETH_CARD_IFNAME(card));
1468 return rc;
1469 }
1470 rc = qeth_l3_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
1471 IPA_CMD_ASS_ENABLE,
1472 card->info.csum_mask);
1473 if (rc) {
1474 dev_warn(&card->gdev->dev, "Enabling HW checksumming for %s "
1475 "failed, using SW checksumming\n",
1476 QETH_CARD_IFNAME(card));
1477 return rc;
1478 }
1479 return 0;
1480 }
1481
1482 int qeth_l3_set_rx_csum(struct qeth_card *card,
1483 enum qeth_checksum_types csum_type)
1484 {
1485 int rc = 0;
1486
1487 if (card->options.checksum_type == HW_CHECKSUMMING) {
1488 if ((csum_type != HW_CHECKSUMMING) &&
1489 (card->state != CARD_STATE_DOWN)) {
1490 rc = qeth_l3_send_simple_setassparms(card,
1491 IPA_INBOUND_CHECKSUM, IPA_CMD_ASS_STOP, 0);
1492 if (rc)
1493 return -EIO;
1494 }
1495 } else {
1496 if (csum_type == HW_CHECKSUMMING) {
1497 if (card->state != CARD_STATE_DOWN) {
1498 if (!qeth_is_supported(card,
1499 IPA_INBOUND_CHECKSUM))
1500 return -EPERM;
1501 rc = qeth_l3_send_checksum_command(card);
1502 if (rc)
1503 return -EIO;
1504 }
1505 }
1506 }
1507 card->options.checksum_type = csum_type;
1508 return rc;
1509 }
1510
1511 static int qeth_l3_start_ipa_checksum(struct qeth_card *card)
1512 {
1513 int rc = 0;
1514
1515 QETH_CARD_TEXT(card, 3, "strtcsum");
1516
1517 if (card->options.checksum_type == NO_CHECKSUMMING) {
1518 dev_info(&card->gdev->dev,
1519 "Using no checksumming on %s.\n",
1520 QETH_CARD_IFNAME(card));
1521 return 0;
1522 }
1523 if (card->options.checksum_type == SW_CHECKSUMMING) {
1524 dev_info(&card->gdev->dev,
1525 "Using SW checksumming on %s.\n",
1526 QETH_CARD_IFNAME(card));
1527 return 0;
1528 }
1529 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
1530 dev_info(&card->gdev->dev,
1531 "Inbound HW Checksumming not "
1532 "supported on %s,\ncontinuing "
1533 "using Inbound SW Checksumming\n",
1534 QETH_CARD_IFNAME(card));
1535 card->options.checksum_type = SW_CHECKSUMMING;
1536 return 0;
1537 }
1538 rc = qeth_l3_send_checksum_command(card);
1539 if (!rc)
1540 dev_info(&card->gdev->dev,
1541 "HW Checksumming (inbound) enabled\n");
1542
1543 return rc;
1544 }
1545
1546 static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1547 {
1548 int rc = 0;
1549
1550 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
1551 return rc;
1552 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1553 IPA_CMD_ASS_START, 0);
1554 if (rc)
1555 goto err_out;
1556 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM,
1557 IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask);
1558 if (rc)
1559 goto err_out;
1560 dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n");
1561 return rc;
1562 err_out:
1563 dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s "
1564 "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card));
1565 return rc;
1566 }
1567
1568 static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1569 {
1570 int rc;
1571
1572 QETH_CARD_TEXT(card, 3, "sttso");
1573
1574 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1575 dev_info(&card->gdev->dev,
1576 "Outbound TSO not supported on %s\n",
1577 QETH_CARD_IFNAME(card));
1578 rc = -EOPNOTSUPP;
1579 } else {
1580 rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1581 IPA_CMD_ASS_START, 0);
1582 if (rc)
1583 dev_warn(&card->gdev->dev, "Starting outbound TCP "
1584 "segmentation offload for %s failed\n",
1585 QETH_CARD_IFNAME(card));
1586 else
1587 dev_info(&card->gdev->dev,
1588 "Outbound TSO enabled\n");
1589 }
1590 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)) {
1591 card->options.large_send = QETH_LARGE_SEND_NO;
1592 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
1593 }
1594 return rc;
1595 }
1596
1597 static int qeth_l3_start_ipassists(struct qeth_card *card)
1598 {
1599 QETH_CARD_TEXT(card, 3, "strtipas");
1600
1601 qeth_set_access_ctrl_online(card); /* go on*/
1602 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1603 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1604 qeth_l3_start_ipa_source_mac(card); /* go on*/
1605 qeth_l3_start_ipa_vlan(card); /* go on*/
1606 qeth_l3_start_ipa_multicast(card); /* go on*/
1607 qeth_l3_start_ipa_ipv6(card); /* go on*/
1608 qeth_l3_start_ipa_broadcast(card); /* go on*/
1609 qeth_l3_start_ipa_checksum(card); /* go on*/
1610 qeth_l3_start_ipa_tx_checksum(card);
1611 qeth_l3_start_ipa_tso(card); /* go on*/
1612 return 0;
1613 }
1614
1615 static int qeth_l3_put_unique_id(struct qeth_card *card)
1616 {
1617
1618 int rc = 0;
1619 struct qeth_cmd_buffer *iob;
1620 struct qeth_ipa_cmd *cmd;
1621
1622 QETH_CARD_TEXT(card, 2, "puniqeid");
1623
1624 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
1625 UNIQUE_ID_NOT_BY_CARD)
1626 return -1;
1627 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
1628 QETH_PROT_IPV6);
1629 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1630 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1631 card->info.unique_id;
1632 memcpy(&cmd->data.create_destroy_addr.unique_id[0],
1633 card->dev->dev_addr, OSA_ADDR_LEN);
1634 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
1635 return rc;
1636 }
1637
1638 static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1639 struct qeth_reply *reply, unsigned long data)
1640 {
1641 struct qeth_ipa_cmd *cmd;
1642
1643 cmd = (struct qeth_ipa_cmd *) data;
1644 if (cmd->hdr.return_code == 0)
1645 memcpy(card->dev->dev_addr,
1646 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1647 else
1648 random_ether_addr(card->dev->dev_addr);
1649
1650 return 0;
1651 }
1652
1653 static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1654 {
1655 int rc = 0;
1656 struct qeth_cmd_buffer *iob;
1657 struct qeth_ipa_cmd *cmd;
1658
1659 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1660
1661 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1662 QETH_PROT_IPV6);
1663 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1664 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1665 card->info.unique_id;
1666
1667 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1668 NULL);
1669 return rc;
1670 }
1671
1672 static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1673 struct qeth_reply *reply, unsigned long data)
1674 {
1675 struct qeth_ipa_cmd *cmd;
1676
1677 cmd = (struct qeth_ipa_cmd *) data;
1678 if (cmd->hdr.return_code == 0)
1679 card->info.unique_id = *((__u16 *)
1680 &cmd->data.create_destroy_addr.unique_id[6]);
1681 else {
1682 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1683 UNIQUE_ID_NOT_BY_CARD;
1684 dev_warn(&card->gdev->dev, "The network adapter failed to "
1685 "generate a unique ID\n");
1686 }
1687 return 0;
1688 }
1689
1690 static int qeth_l3_get_unique_id(struct qeth_card *card)
1691 {
1692 int rc = 0;
1693 struct qeth_cmd_buffer *iob;
1694 struct qeth_ipa_cmd *cmd;
1695
1696 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1697
1698 if (!qeth_is_supported(card, IPA_IPV6)) {
1699 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1700 UNIQUE_ID_NOT_BY_CARD;
1701 return 0;
1702 }
1703
1704 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1705 QETH_PROT_IPV6);
1706 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1707 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1708 card->info.unique_id;
1709
1710 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1711 return rc;
1712 }
1713
1714 static int
1715 qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1716 unsigned long data)
1717 {
1718 struct qeth_ipa_cmd *cmd;
1719 __u16 rc;
1720
1721 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1722
1723 cmd = (struct qeth_ipa_cmd *)data;
1724 rc = cmd->hdr.return_code;
1725 if (rc)
1726 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1727 switch (cmd->data.diagass.action) {
1728 case QETH_DIAGS_CMD_TRACE_QUERY:
1729 break;
1730 case QETH_DIAGS_CMD_TRACE_DISABLE:
1731 switch (rc) {
1732 case 0:
1733 case IPA_RC_INVALID_SUBCMD:
1734 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1735 dev_info(&card->gdev->dev, "The HiperSockets network "
1736 "traffic analyzer is deactivated\n");
1737 break;
1738 default:
1739 break;
1740 }
1741 break;
1742 case QETH_DIAGS_CMD_TRACE_ENABLE:
1743 switch (rc) {
1744 case 0:
1745 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1746 dev_info(&card->gdev->dev, "The HiperSockets network "
1747 "traffic analyzer is activated\n");
1748 break;
1749 case IPA_RC_HARDWARE_AUTH_ERROR:
1750 dev_warn(&card->gdev->dev, "The device is not "
1751 "authorized to run as a HiperSockets network "
1752 "traffic analyzer\n");
1753 break;
1754 case IPA_RC_TRACE_ALREADY_ACTIVE:
1755 dev_warn(&card->gdev->dev, "A HiperSockets "
1756 "network traffic analyzer is already "
1757 "active in the HiperSockets LAN\n");
1758 break;
1759 default:
1760 break;
1761 }
1762 break;
1763 default:
1764 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1765 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1766 }
1767
1768 return 0;
1769 }
1770
1771 static int
1772 qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1773 {
1774 struct qeth_cmd_buffer *iob;
1775 struct qeth_ipa_cmd *cmd;
1776
1777 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1778
1779 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1780 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1781 cmd->data.diagass.subcmd_len = 16;
1782 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1783 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1784 cmd->data.diagass.action = diags_cmd;
1785 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1786 }
1787
1788 static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1789 struct net_device *dev)
1790 {
1791 if (dev->type == ARPHRD_IEEE802_TR)
1792 ip_tr_mc_map(ipm, mac);
1793 else
1794 ip_eth_mc_map(ipm, mac);
1795 }
1796
1797 static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1798 {
1799 struct qeth_ipaddr *ipm;
1800 struct ip_mc_list *im4;
1801 char buf[MAX_ADDR_LEN];
1802
1803 QETH_CARD_TEXT(card, 4, "addmc");
1804 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
1805 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1806 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1807 if (!ipm)
1808 continue;
1809 ipm->u.a4.addr = im4->multiaddr;
1810 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1811 ipm->is_multicast = 1;
1812 if (!qeth_l3_add_ip(card, ipm))
1813 kfree(ipm);
1814 }
1815 }
1816
1817 static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1818 {
1819 struct in_device *in_dev;
1820 struct vlan_group *vg;
1821 int i;
1822
1823 QETH_CARD_TEXT(card, 4, "addmcvl");
1824 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1825 return;
1826
1827 vg = card->vlangrp;
1828 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
1829 struct net_device *netdev = vlan_group_get_device(vg, i);
1830 if (netdev == NULL ||
1831 !(netdev->flags & IFF_UP))
1832 continue;
1833 in_dev = in_dev_get(netdev);
1834 if (!in_dev)
1835 continue;
1836 read_lock(&in_dev->mc_list_lock);
1837 qeth_l3_add_mc(card, in_dev);
1838 read_unlock(&in_dev->mc_list_lock);
1839 in_dev_put(in_dev);
1840 }
1841 }
1842
1843 static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1844 {
1845 struct in_device *in4_dev;
1846
1847 QETH_CARD_TEXT(card, 4, "chkmcv4");
1848 in4_dev = in_dev_get(card->dev);
1849 if (in4_dev == NULL)
1850 return;
1851 read_lock(&in4_dev->mc_list_lock);
1852 qeth_l3_add_mc(card, in4_dev);
1853 qeth_l3_add_vlan_mc(card);
1854 read_unlock(&in4_dev->mc_list_lock);
1855 in_dev_put(in4_dev);
1856 }
1857
1858 #ifdef CONFIG_QETH_IPV6
1859 static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1860 {
1861 struct qeth_ipaddr *ipm;
1862 struct ifmcaddr6 *im6;
1863 char buf[MAX_ADDR_LEN];
1864
1865 QETH_CARD_TEXT(card, 4, "addmc6");
1866 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1867 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1868 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1869 if (!ipm)
1870 continue;
1871 ipm->is_multicast = 1;
1872 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1873 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1874 sizeof(struct in6_addr));
1875 if (!qeth_l3_add_ip(card, ipm))
1876 kfree(ipm);
1877 }
1878 }
1879
1880 static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1881 {
1882 struct inet6_dev *in_dev;
1883 struct vlan_group *vg;
1884 int i;
1885
1886 QETH_CARD_TEXT(card, 4, "admc6vl");
1887 if (!qeth_is_supported(card, IPA_FULL_VLAN) || (card->vlangrp == NULL))
1888 return;
1889
1890 vg = card->vlangrp;
1891 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
1892 struct net_device *netdev = vlan_group_get_device(vg, i);
1893 if (netdev == NULL ||
1894 !(netdev->flags & IFF_UP))
1895 continue;
1896 in_dev = in6_dev_get(netdev);
1897 if (!in_dev)
1898 continue;
1899 read_lock_bh(&in_dev->lock);
1900 qeth_l3_add_mc6(card, in_dev);
1901 read_unlock_bh(&in_dev->lock);
1902 in6_dev_put(in_dev);
1903 }
1904 }
1905
1906 static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1907 {
1908 struct inet6_dev *in6_dev;
1909
1910 QETH_CARD_TEXT(card, 4, "chkmcv6");
1911 if (!qeth_is_supported(card, IPA_IPV6))
1912 return ;
1913 in6_dev = in6_dev_get(card->dev);
1914 if (in6_dev == NULL)
1915 return;
1916 read_lock_bh(&in6_dev->lock);
1917 qeth_l3_add_mc6(card, in6_dev);
1918 qeth_l3_add_vlan_mc6(card);
1919 read_unlock_bh(&in6_dev->lock);
1920 in6_dev_put(in6_dev);
1921 }
1922 #endif /* CONFIG_QETH_IPV6 */
1923
1924 static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1925 unsigned short vid)
1926 {
1927 struct in_device *in_dev;
1928 struct in_ifaddr *ifa;
1929 struct qeth_ipaddr *addr;
1930
1931 QETH_CARD_TEXT(card, 4, "frvaddr4");
1932
1933 in_dev = in_dev_get(vlan_group_get_device(card->vlangrp, vid));
1934 if (!in_dev)
1935 return;
1936 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1937 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1938 if (addr) {
1939 addr->u.a4.addr = ifa->ifa_address;
1940 addr->u.a4.mask = ifa->ifa_mask;
1941 addr->type = QETH_IP_TYPE_NORMAL;
1942 if (!qeth_l3_delete_ip(card, addr))
1943 kfree(addr);
1944 }
1945 }
1946 in_dev_put(in_dev);
1947 }
1948
1949 static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1950 unsigned short vid)
1951 {
1952 #ifdef CONFIG_QETH_IPV6
1953 struct inet6_dev *in6_dev;
1954 struct inet6_ifaddr *ifa;
1955 struct qeth_ipaddr *addr;
1956
1957 QETH_CARD_TEXT(card, 4, "frvaddr6");
1958
1959 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
1960 if (!in6_dev)
1961 return;
1962 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1963 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1964 if (addr) {
1965 memcpy(&addr->u.a6.addr, &ifa->addr,
1966 sizeof(struct in6_addr));
1967 addr->u.a6.pfxlen = ifa->prefix_len;
1968 addr->type = QETH_IP_TYPE_NORMAL;
1969 if (!qeth_l3_delete_ip(card, addr))
1970 kfree(addr);
1971 }
1972 }
1973 in6_dev_put(in6_dev);
1974 #endif /* CONFIG_QETH_IPV6 */
1975 }
1976
1977 static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1978 unsigned short vid)
1979 {
1980 if (!card->vlangrp)
1981 return;
1982 qeth_l3_free_vlan_addresses4(card, vid);
1983 qeth_l3_free_vlan_addresses6(card, vid);
1984 }
1985
1986 static void qeth_l3_vlan_rx_register(struct net_device *dev,
1987 struct vlan_group *grp)
1988 {
1989 struct qeth_card *card = dev->ml_priv;
1990 unsigned long flags;
1991
1992 QETH_CARD_TEXT(card, 4, "vlanreg");
1993 spin_lock_irqsave(&card->vlanlock, flags);
1994 card->vlangrp = grp;
1995 spin_unlock_irqrestore(&card->vlanlock, flags);
1996 }
1997
1998 static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
1999 {
2000 return;
2001 }
2002
2003 static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
2004 {
2005 struct qeth_card *card = dev->ml_priv;
2006 unsigned long flags;
2007
2008 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
2009 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
2010 QETH_CARD_TEXT(card, 3, "kidREC");
2011 return;
2012 }
2013 spin_lock_irqsave(&card->vlanlock, flags);
2014 /* unregister IP addresses of vlan device */
2015 qeth_l3_free_vlan_addresses(card, vid);
2016 vlan_group_set_device(card->vlangrp, vid, NULL);
2017 spin_unlock_irqrestore(&card->vlanlock, flags);
2018 qeth_l3_set_multicast_list(card->dev);
2019 }
2020
2021 static inline __u16 qeth_l3_rebuild_skb(struct qeth_card *card,
2022 struct sk_buff *skb, struct qeth_hdr *hdr)
2023 {
2024 unsigned short vlan_id = 0;
2025 __be16 prot;
2026 struct iphdr *ip_hdr;
2027 unsigned char tg_addr[MAX_ADDR_LEN];
2028
2029 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
2030 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2031 ETH_P_IP);
2032 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
2033 case QETH_CAST_MULTICAST:
2034 switch (prot) {
2035 #ifdef CONFIG_QETH_IPV6
2036 case __constant_htons(ETH_P_IPV6):
2037 ndisc_mc_map((struct in6_addr *)
2038 skb->data + 24,
2039 tg_addr, card->dev, 0);
2040 break;
2041 #endif
2042 case __constant_htons(ETH_P_IP):
2043 ip_hdr = (struct iphdr *)skb->data;
2044 (card->dev->type == ARPHRD_IEEE802_TR) ?
2045 ip_tr_mc_map(ip_hdr->daddr, tg_addr):
2046 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
2047 break;
2048 default:
2049 memcpy(tg_addr, card->dev->broadcast,
2050 card->dev->addr_len);
2051 }
2052 card->stats.multicast++;
2053 skb->pkt_type = PACKET_MULTICAST;
2054 break;
2055 case QETH_CAST_BROADCAST:
2056 memcpy(tg_addr, card->dev->broadcast,
2057 card->dev->addr_len);
2058 card->stats.multicast++;
2059 skb->pkt_type = PACKET_BROADCAST;
2060 break;
2061 case QETH_CAST_UNICAST:
2062 case QETH_CAST_ANYCAST:
2063 case QETH_CAST_NOCAST:
2064 default:
2065 if (card->options.sniffer)
2066 skb->pkt_type = PACKET_OTHERHOST;
2067 else
2068 skb->pkt_type = PACKET_HOST;
2069 memcpy(tg_addr, card->dev->dev_addr,
2070 card->dev->addr_len);
2071 }
2072 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2073 card->dev->header_ops->create(skb, card->dev, prot,
2074 tg_addr, &hdr->hdr.l3.dest_addr[2],
2075 card->dev->addr_len);
2076 else
2077 card->dev->header_ops->create(skb, card->dev, prot,
2078 tg_addr, "FAKELL", card->dev->addr_len);
2079 }
2080
2081 #ifdef CONFIG_TR
2082 if (card->dev->type == ARPHRD_IEEE802_TR)
2083 skb->protocol = tr_type_trans(skb, card->dev);
2084 else
2085 #endif
2086 skb->protocol = eth_type_trans(skb, card->dev);
2087
2088 if (hdr->hdr.l3.ext_flags &
2089 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2090 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2091 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2092 }
2093
2094 switch (card->options.checksum_type) {
2095 case SW_CHECKSUMMING:
2096 skb->ip_summed = CHECKSUM_NONE;
2097 break;
2098 case NO_CHECKSUMMING:
2099 skb->ip_summed = CHECKSUM_UNNECESSARY;
2100 break;
2101 case HW_CHECKSUMMING:
2102 if ((hdr->hdr.l3.ext_flags &
2103 (QETH_HDR_EXT_CSUM_HDR_REQ |
2104 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2105 (QETH_HDR_EXT_CSUM_HDR_REQ |
2106 QETH_HDR_EXT_CSUM_TRANSP_REQ))
2107 skb->ip_summed = CHECKSUM_UNNECESSARY;
2108 else
2109 skb->ip_summed = CHECKSUM_NONE;
2110 }
2111
2112 return vlan_id;
2113 }
2114
2115 static void qeth_l3_process_inbound_buffer(struct qeth_card *card,
2116 struct qeth_qdio_buffer *buf, int index)
2117 {
2118 struct qdio_buffer_element *element;
2119 struct sk_buff *skb;
2120 struct qeth_hdr *hdr;
2121 int offset;
2122 __u16 vlan_tag = 0;
2123 unsigned int len;
2124 /* get first element of current buffer */
2125 element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2126 offset = 0;
2127 if (card->options.performance_stats)
2128 card->perf_stats.bufs_rec++;
2129 while ((skb = qeth_core_get_next_skb(card, buf->buffer, &element,
2130 &offset, &hdr))) {
2131 skb->dev = card->dev;
2132 /* is device UP ? */
2133 if (!(card->dev->flags & IFF_UP)) {
2134 dev_kfree_skb_any(skb);
2135 continue;
2136 }
2137
2138 switch (hdr->hdr.l3.id) {
2139 case QETH_HEADER_TYPE_LAYER3:
2140 vlan_tag = qeth_l3_rebuild_skb(card, skb, hdr);
2141 len = skb->len;
2142 if (vlan_tag && !card->options.sniffer)
2143 if (card->vlangrp)
2144 vlan_hwaccel_rx(skb, card->vlangrp,
2145 vlan_tag);
2146 else {
2147 dev_kfree_skb_any(skb);
2148 continue;
2149 }
2150 else
2151 netif_rx(skb);
2152 break;
2153 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
2154 skb->pkt_type = PACKET_HOST;
2155 skb->protocol = eth_type_trans(skb, skb->dev);
2156 if (card->options.checksum_type == NO_CHECKSUMMING)
2157 skb->ip_summed = CHECKSUM_UNNECESSARY;
2158 else
2159 skb->ip_summed = CHECKSUM_NONE;
2160 len = skb->len;
2161 netif_receive_skb(skb);
2162 break;
2163 default:
2164 dev_kfree_skb_any(skb);
2165 QETH_CARD_TEXT(card, 3, "inbunkno");
2166 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
2167 continue;
2168 }
2169
2170 card->stats.rx_packets++;
2171 card->stats.rx_bytes += len;
2172 }
2173 }
2174
2175 static int qeth_l3_verify_vlan_dev(struct net_device *dev,
2176 struct qeth_card *card)
2177 {
2178 int rc = 0;
2179 struct vlan_group *vg;
2180 int i;
2181
2182 vg = card->vlangrp;
2183 if (!vg)
2184 return rc;
2185
2186 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
2187 if (vlan_group_get_device(vg, i) == dev) {
2188 rc = QETH_VLAN_CARD;
2189 break;
2190 }
2191 }
2192
2193 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
2194 return 0;
2195
2196 return rc;
2197 }
2198
2199 static int qeth_l3_verify_dev(struct net_device *dev)
2200 {
2201 struct qeth_card *card;
2202 unsigned long flags;
2203 int rc = 0;
2204
2205 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2206 list_for_each_entry(card, &qeth_core_card_list.list, list) {
2207 if (card->dev == dev) {
2208 rc = QETH_REAL_CARD;
2209 break;
2210 }
2211 rc = qeth_l3_verify_vlan_dev(dev, card);
2212 if (rc)
2213 break;
2214 }
2215 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2216
2217 return rc;
2218 }
2219
2220 static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2221 {
2222 struct qeth_card *card = NULL;
2223 int rc;
2224
2225 rc = qeth_l3_verify_dev(dev);
2226 if (rc == QETH_REAL_CARD)
2227 card = dev->ml_priv;
2228 else if (rc == QETH_VLAN_CARD)
2229 card = vlan_dev_real_dev(dev)->ml_priv;
2230 if (card && card->options.layer2)
2231 card = NULL;
2232 if (card)
2233 QETH_CARD_TEXT_(card, 4, "%d", rc);
2234 return card ;
2235 }
2236
2237 static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2238 {
2239 int rc = 0;
2240
2241 QETH_DBF_TEXT(SETUP, 2, "stopcard");
2242 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
2243
2244 qeth_set_allowed_threads(card, 0, 1);
2245 if (card->options.sniffer &&
2246 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2247 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2248 if (card->read.state == CH_STATE_UP &&
2249 card->write.state == CH_STATE_UP &&
2250 (card->state == CARD_STATE_UP)) {
2251 if (recovery_mode)
2252 qeth_l3_stop(card->dev);
2253 else {
2254 rtnl_lock();
2255 dev_close(card->dev);
2256 rtnl_unlock();
2257 }
2258 if (!card->use_hard_stop) {
2259 rc = qeth_send_stoplan(card);
2260 if (rc)
2261 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2262 }
2263 card->state = CARD_STATE_SOFTSETUP;
2264 }
2265 if (card->state == CARD_STATE_SOFTSETUP) {
2266 qeth_l3_clear_ip_list(card, !card->use_hard_stop, 1);
2267 qeth_clear_ipacmd_list(card);
2268 card->state = CARD_STATE_HARDSETUP;
2269 }
2270 if (card->state == CARD_STATE_HARDSETUP) {
2271 if (!card->use_hard_stop &&
2272 (card->info.type != QETH_CARD_TYPE_IQD)) {
2273 rc = qeth_l3_put_unique_id(card);
2274 if (rc)
2275 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2276 }
2277 qeth_qdio_clear_card(card, 0);
2278 qeth_clear_qdio_buffers(card);
2279 qeth_clear_working_pool_list(card);
2280 card->state = CARD_STATE_DOWN;
2281 }
2282 if (card->state == CARD_STATE_DOWN) {
2283 qeth_clear_cmd_buffers(&card->read);
2284 qeth_clear_cmd_buffers(&card->write);
2285 }
2286 card->use_hard_stop = 0;
2287 return rc;
2288 }
2289
2290 /*
2291 * test for and Switch promiscuous mode (on or off)
2292 * either for guestlan or HiperSocket Sniffer
2293 */
2294 static void
2295 qeth_l3_handle_promisc_mode(struct qeth_card *card)
2296 {
2297 struct net_device *dev = card->dev;
2298
2299 if (((dev->flags & IFF_PROMISC) &&
2300 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2301 (!(dev->flags & IFF_PROMISC) &&
2302 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2303 return;
2304
2305 if (card->info.guestlan) { /* Guestlan trace */
2306 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2307 qeth_setadp_promisc_mode(card);
2308 } else if (card->options.sniffer && /* HiperSockets trace */
2309 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2310 if (dev->flags & IFF_PROMISC) {
2311 QETH_CARD_TEXT(card, 3, "+promisc");
2312 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2313 } else {
2314 QETH_CARD_TEXT(card, 3, "-promisc");
2315 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2316 }
2317 }
2318 }
2319
2320 static void qeth_l3_set_multicast_list(struct net_device *dev)
2321 {
2322 struct qeth_card *card = dev->ml_priv;
2323
2324 QETH_CARD_TEXT(card, 3, "setmulti");
2325 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2326 (card->state != CARD_STATE_UP))
2327 return;
2328 if (!card->options.sniffer) {
2329 qeth_l3_delete_mc_addresses(card);
2330 qeth_l3_add_multicast_ipv4(card);
2331 #ifdef CONFIG_QETH_IPV6
2332 qeth_l3_add_multicast_ipv6(card);
2333 #endif
2334 qeth_l3_set_ip_addr_list(card);
2335 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2336 return;
2337 }
2338 qeth_l3_handle_promisc_mode(card);
2339 }
2340
2341 static const char *qeth_l3_arp_get_error_cause(int *rc)
2342 {
2343 switch (*rc) {
2344 case QETH_IPA_ARP_RC_FAILED:
2345 *rc = -EIO;
2346 return "operation failed";
2347 case QETH_IPA_ARP_RC_NOTSUPP:
2348 *rc = -EOPNOTSUPP;
2349 return "operation not supported";
2350 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2351 *rc = -EINVAL;
2352 return "argument out of range";
2353 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2354 *rc = -EOPNOTSUPP;
2355 return "query operation not supported";
2356 case QETH_IPA_ARP_RC_Q_NO_DATA:
2357 *rc = -ENOENT;
2358 return "no query data available";
2359 default:
2360 return "unknown error";
2361 }
2362 }
2363
2364 static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2365 {
2366 int tmp;
2367 int rc;
2368
2369 QETH_CARD_TEXT(card, 3, "arpstnoe");
2370
2371 /*
2372 * currently GuestLAN only supports the ARP assist function
2373 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2374 * thus we say EOPNOTSUPP for this ARP function
2375 */
2376 if (card->info.guestlan)
2377 return -EOPNOTSUPP;
2378 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2379 return -EOPNOTSUPP;
2380 }
2381 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2382 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2383 no_entries);
2384 if (rc) {
2385 tmp = rc;
2386 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2387 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2388 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2389 }
2390 return rc;
2391 }
2392
2393 static void qeth_l3_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
2394 struct qeth_arp_query_data *qdata, int entry_size,
2395 int uentry_size)
2396 {
2397 char *entry_ptr;
2398 char *uentry_ptr;
2399 int i;
2400
2401 entry_ptr = (char *)&qdata->data;
2402 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
2403 for (i = 0; i < qdata->no_entries; ++i) {
2404 /* strip off 32 bytes "media specific information" */
2405 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
2406 entry_ptr += entry_size;
2407 uentry_ptr += uentry_size;
2408 }
2409 }
2410
2411 static int qeth_l3_arp_query_cb(struct qeth_card *card,
2412 struct qeth_reply *reply, unsigned long data)
2413 {
2414 struct qeth_ipa_cmd *cmd;
2415 struct qeth_arp_query_data *qdata;
2416 struct qeth_arp_query_info *qinfo;
2417 int entry_size;
2418 int uentry_size;
2419 int i;
2420
2421 QETH_CARD_TEXT(card, 4, "arpquecb");
2422
2423 qinfo = (struct qeth_arp_query_info *) reply->param;
2424 cmd = (struct qeth_ipa_cmd *) data;
2425 if (cmd->hdr.return_code) {
2426 QETH_CARD_TEXT_(card, 4, "qaer1%i", cmd->hdr.return_code);
2427 return 0;
2428 }
2429 if (cmd->data.setassparms.hdr.return_code) {
2430 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2431 QETH_CARD_TEXT_(card, 4, "qaer2%i", cmd->hdr.return_code);
2432 return 0;
2433 }
2434 qdata = &cmd->data.setassparms.data.query_arp;
2435 switch (qdata->reply_bits) {
2436 case 5:
2437 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
2438 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2439 uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
2440 break;
2441 case 7:
2442 /* fall through to default */
2443 default:
2444 /* tr is the same as eth -> entry7 */
2445 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
2446 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2447 uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
2448 break;
2449 }
2450 /* check if there is enough room in userspace */
2451 if ((qinfo->udata_len - qinfo->udata_offset) <
2452 qdata->no_entries * uentry_size){
2453 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2454 cmd->hdr.return_code = -ENOMEM;
2455 goto out_error;
2456 }
2457 QETH_CARD_TEXT_(card, 4, "anore%i",
2458 cmd->data.setassparms.hdr.number_of_replies);
2459 QETH_CARD_TEXT_(card, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
2460 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2461
2462 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
2463 /* strip off "media specific information" */
2464 qeth_l3_copy_arp_entries_stripped(qinfo, qdata, entry_size,
2465 uentry_size);
2466 } else
2467 /*copy entries to user buffer*/
2468 memcpy(qinfo->udata + qinfo->udata_offset,
2469 (char *)&qdata->data, qdata->no_entries*uentry_size);
2470
2471 qinfo->no_entries += qdata->no_entries;
2472 qinfo->udata_offset += (qdata->no_entries*uentry_size);
2473 /* check if all replies received ... */
2474 if (cmd->data.setassparms.hdr.seq_no <
2475 cmd->data.setassparms.hdr.number_of_replies)
2476 return 1;
2477 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2478 /* keep STRIP_ENTRIES flag so the user program can distinguish
2479 * stripped entries from normal ones */
2480 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2481 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2482 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2483 return 0;
2484 out_error:
2485 i = 0;
2486 memcpy(qinfo->udata, &i, 4);
2487 return 0;
2488 }
2489
2490 static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2491 struct qeth_cmd_buffer *iob, int len,
2492 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2493 unsigned long),
2494 void *reply_param)
2495 {
2496 QETH_CARD_TEXT(card, 4, "sendarp");
2497
2498 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2499 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2500 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2501 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2502 reply_cb, reply_param);
2503 }
2504
2505 static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2506 {
2507 struct qeth_cmd_buffer *iob;
2508 struct qeth_arp_query_info qinfo = {0, };
2509 int tmp;
2510 int rc;
2511
2512 QETH_CARD_TEXT(card, 3, "arpquery");
2513
2514 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2515 IPA_ARP_PROCESSING)) {
2516 return -EOPNOTSUPP;
2517 }
2518 /* get size of userspace buffer and mask_bits -> 6 bytes */
2519 if (copy_from_user(&qinfo, udata, 6))
2520 return -EFAULT;
2521 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2522 if (!qinfo.udata)
2523 return -ENOMEM;
2524 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2525 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2526 IPA_CMD_ASS_ARP_QUERY_INFO,
2527 sizeof(int), QETH_PROT_IPV4);
2528
2529 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2530 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2531 qeth_l3_arp_query_cb, (void *)&qinfo);
2532 if (rc) {
2533 tmp = rc;
2534 QETH_DBF_MESSAGE(2, "Error while querying ARP cache on %s: %s "
2535 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2536 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2537 if (copy_to_user(udata, qinfo.udata, 4))
2538 rc = -EFAULT;
2539 } else {
2540 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
2541 rc = -EFAULT;
2542 }
2543 kfree(qinfo.udata);
2544 return rc;
2545 }
2546
2547 static int qeth_l3_arp_add_entry(struct qeth_card *card,
2548 struct qeth_arp_cache_entry *entry)
2549 {
2550 struct qeth_cmd_buffer *iob;
2551 char buf[16];
2552 int tmp;
2553 int rc;
2554
2555 QETH_CARD_TEXT(card, 3, "arpadent");
2556
2557 /*
2558 * currently GuestLAN only supports the ARP assist function
2559 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2560 * thus we say EOPNOTSUPP for this ARP function
2561 */
2562 if (card->info.guestlan)
2563 return -EOPNOTSUPP;
2564 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2565 return -EOPNOTSUPP;
2566 }
2567
2568 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2569 IPA_CMD_ASS_ARP_ADD_ENTRY,
2570 sizeof(struct qeth_arp_cache_entry),
2571 QETH_PROT_IPV4);
2572 rc = qeth_l3_send_setassparms(card, iob,
2573 sizeof(struct qeth_arp_cache_entry),
2574 (unsigned long) entry,
2575 qeth_l3_default_setassparms_cb, NULL);
2576 if (rc) {
2577 tmp = rc;
2578 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2579 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2580 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2581 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2582 }
2583 return rc;
2584 }
2585
2586 static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2587 struct qeth_arp_cache_entry *entry)
2588 {
2589 struct qeth_cmd_buffer *iob;
2590 char buf[16] = {0, };
2591 int tmp;
2592 int rc;
2593
2594 QETH_CARD_TEXT(card, 3, "arprment");
2595
2596 /*
2597 * currently GuestLAN only supports the ARP assist function
2598 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2599 * thus we say EOPNOTSUPP for this ARP function
2600 */
2601 if (card->info.guestlan)
2602 return -EOPNOTSUPP;
2603 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2604 return -EOPNOTSUPP;
2605 }
2606 memcpy(buf, entry, 12);
2607 iob = qeth_l3_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2608 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2609 12,
2610 QETH_PROT_IPV4);
2611 rc = qeth_l3_send_setassparms(card, iob,
2612 12, (unsigned long)buf,
2613 qeth_l3_default_setassparms_cb, NULL);
2614 if (rc) {
2615 tmp = rc;
2616 memset(buf, 0, 16);
2617 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2618 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2619 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2620 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2621 }
2622 return rc;
2623 }
2624
2625 static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2626 {
2627 int rc;
2628 int tmp;
2629
2630 QETH_CARD_TEXT(card, 3, "arpflush");
2631
2632 /*
2633 * currently GuestLAN only supports the ARP assist function
2634 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2635 * thus we say EOPNOTSUPP for this ARP function
2636 */
2637 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2638 return -EOPNOTSUPP;
2639 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2640 return -EOPNOTSUPP;
2641 }
2642 rc = qeth_l3_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2643 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2644 if (rc) {
2645 tmp = rc;
2646 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2647 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2648 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2649 }
2650 return rc;
2651 }
2652
2653 static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2654 {
2655 struct qeth_card *card = dev->ml_priv;
2656 struct qeth_arp_cache_entry arp_entry;
2657 struct mii_ioctl_data *mii_data;
2658 int rc = 0;
2659
2660 if (!card)
2661 return -ENODEV;
2662
2663 if ((card->state != CARD_STATE_UP) &&
2664 (card->state != CARD_STATE_SOFTSETUP))
2665 return -ENODEV;
2666
2667 switch (cmd) {
2668 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2669 if (!capable(CAP_NET_ADMIN)) {
2670 rc = -EPERM;
2671 break;
2672 }
2673 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2674 break;
2675 case SIOC_QETH_ARP_QUERY_INFO:
2676 if (!capable(CAP_NET_ADMIN)) {
2677 rc = -EPERM;
2678 break;
2679 }
2680 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2681 break;
2682 case SIOC_QETH_ARP_ADD_ENTRY:
2683 if (!capable(CAP_NET_ADMIN)) {
2684 rc = -EPERM;
2685 break;
2686 }
2687 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2688 sizeof(struct qeth_arp_cache_entry)))
2689 rc = -EFAULT;
2690 else
2691 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2692 break;
2693 case SIOC_QETH_ARP_REMOVE_ENTRY:
2694 if (!capable(CAP_NET_ADMIN)) {
2695 rc = -EPERM;
2696 break;
2697 }
2698 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2699 sizeof(struct qeth_arp_cache_entry)))
2700 rc = -EFAULT;
2701 else
2702 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2703 break;
2704 case SIOC_QETH_ARP_FLUSH_CACHE:
2705 if (!capable(CAP_NET_ADMIN)) {
2706 rc = -EPERM;
2707 break;
2708 }
2709 rc = qeth_l3_arp_flush_cache(card);
2710 break;
2711 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2712 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2713 break;
2714 case SIOC_QETH_GET_CARD_TYPE:
2715 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2716 card->info.type == QETH_CARD_TYPE_OSX) &&
2717 !card->info.guestlan)
2718 return 1;
2719 return 0;
2720 break;
2721 case SIOCGMIIPHY:
2722 mii_data = if_mii(rq);
2723 mii_data->phy_id = 0;
2724 break;
2725 case SIOCGMIIREG:
2726 mii_data = if_mii(rq);
2727 if (mii_data->phy_id != 0)
2728 rc = -EINVAL;
2729 else
2730 mii_data->val_out = qeth_mdio_read(dev,
2731 mii_data->phy_id,
2732 mii_data->reg_num);
2733 break;
2734 default:
2735 rc = -EOPNOTSUPP;
2736 }
2737 if (rc)
2738 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
2739 return rc;
2740 }
2741
2742 int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2743 {
2744 int cast_type = RTN_UNSPEC;
2745
2746 if (skb_dst(skb) && skb_dst(skb)->neighbour) {
2747 cast_type = skb_dst(skb)->neighbour->type;
2748 if ((cast_type == RTN_BROADCAST) ||
2749 (cast_type == RTN_MULTICAST) ||
2750 (cast_type == RTN_ANYCAST))
2751 return cast_type;
2752 else
2753 return RTN_UNSPEC;
2754 }
2755 /* try something else */
2756 if (skb->protocol == ETH_P_IPV6)
2757 return (skb_network_header(skb)[24] == 0xff) ?
2758 RTN_MULTICAST : 0;
2759 else if (skb->protocol == ETH_P_IP)
2760 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2761 RTN_MULTICAST : 0;
2762 /* ... */
2763 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2764 return RTN_BROADCAST;
2765 else {
2766 u16 hdr_mac;
2767
2768 hdr_mac = *((u16 *)skb->data);
2769 /* tr multicast? */
2770 switch (card->info.link_type) {
2771 case QETH_LINK_TYPE_HSTR:
2772 case QETH_LINK_TYPE_LANE_TR:
2773 if ((hdr_mac == QETH_TR_MAC_NC) ||
2774 (hdr_mac == QETH_TR_MAC_C))
2775 return RTN_MULTICAST;
2776 break;
2777 /* eth or so multicast? */
2778 default:
2779 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2780 (hdr_mac == QETH_ETH_MAC_V6))
2781 return RTN_MULTICAST;
2782 }
2783 }
2784 return cast_type;
2785 }
2786
2787 static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2788 struct sk_buff *skb, int ipv, int cast_type)
2789 {
2790 memset(hdr, 0, sizeof(struct qeth_hdr));
2791 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2792 hdr->hdr.l3.ext_flags = 0;
2793
2794 /*
2795 * before we're going to overwrite this location with next hop ip.
2796 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2797 */
2798 if (card->vlangrp && vlan_tx_tag_present(skb)) {
2799 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2800 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2801 else
2802 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2803 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
2804 }
2805
2806 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2807 if (ipv == 4) {
2808 /* IPv4 */
2809 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2810 memset(hdr->hdr.l3.dest_addr, 0, 12);
2811 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2812 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2813 *((u32 *) skb_dst(skb)->neighbour->primary_key);
2814 } else {
2815 /* fill in destination address used in ip header */
2816 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
2817 ip_hdr(skb)->daddr;
2818 }
2819 } else if (ipv == 6) {
2820 /* IPv6 */
2821 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2822 if (card->info.type == QETH_CARD_TYPE_IQD)
2823 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2824 if ((skb_dst(skb)) && (skb_dst(skb)->neighbour)) {
2825 memcpy(hdr->hdr.l3.dest_addr,
2826 skb_dst(skb)->neighbour->primary_key, 16);
2827 } else {
2828 /* fill in destination address used in ip header */
2829 memcpy(hdr->hdr.l3.dest_addr,
2830 &ipv6_hdr(skb)->daddr, 16);
2831 }
2832 } else {
2833 /* passthrough */
2834 if ((skb->dev->type == ARPHRD_IEEE802_TR) &&
2835 !memcmp(skb->data + sizeof(struct qeth_hdr) +
2836 sizeof(__u16), skb->dev->broadcast, 6)) {
2837 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2838 QETH_HDR_PASSTHRU;
2839 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2840 skb->dev->broadcast, 6)) {
2841 /* broadcast? */
2842 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2843 QETH_HDR_PASSTHRU;
2844 } else {
2845 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2846 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2847 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2848 }
2849 }
2850 }
2851
2852 static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2853 struct qeth_hdr *hdr, struct sk_buff *skb)
2854 {
2855 struct iphdr *iph = ip_hdr(skb);
2856
2857 /* tcph->check contains already the pseudo hdr checksum
2858 * so just set the header flags
2859 */
2860 if (iph->protocol == IPPROTO_UDP)
2861 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
2862 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ;
2863 if (card->options.performance_stats)
2864 card->perf_stats.tx_csum++;
2865 }
2866
2867 static void qeth_tso_fill_header(struct qeth_card *card,
2868 struct qeth_hdr *qhdr, struct sk_buff *skb)
2869 {
2870 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2871 struct tcphdr *tcph = tcp_hdr(skb);
2872 struct iphdr *iph = ip_hdr(skb);
2873 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2874
2875 /*fix header to TSO values ...*/
2876 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2877 /*set values which are fix for the first approach ...*/
2878 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2879 hdr->ext.imb_hdr_no = 1;
2880 hdr->ext.hdr_type = 1;
2881 hdr->ext.hdr_version = 1;
2882 hdr->ext.hdr_len = 28;
2883 /*insert non-fix values */
2884 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2885 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2886 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2887 sizeof(struct qeth_hdr_tso));
2888 tcph->check = 0;
2889 if (skb->protocol == ETH_P_IPV6) {
2890 ip6h->payload_len = 0;
2891 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2892 0, IPPROTO_TCP, 0);
2893 } else {
2894 /*OSA want us to set these values ...*/
2895 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2896 0, IPPROTO_TCP, 0);
2897 iph->tot_len = 0;
2898 iph->check = 0;
2899 }
2900 }
2901
2902 static inline int qeth_l3_tso_elements(struct sk_buff *skb)
2903 {
2904 unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
2905 tcp_hdr(skb)->doff * 4;
2906 int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data);
2907 int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
2908 elements += skb_shinfo(skb)->nr_frags;
2909 return elements;
2910 }
2911
2912 static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2913 {
2914 int rc;
2915 u16 *tag;
2916 struct qeth_hdr *hdr = NULL;
2917 int elements_needed = 0;
2918 int elems;
2919 struct qeth_card *card = dev->ml_priv;
2920 struct sk_buff *new_skb = NULL;
2921 int ipv = qeth_get_ip_version(skb);
2922 int cast_type = qeth_l3_get_cast_type(card, skb);
2923 struct qeth_qdio_out_q *queue = card->qdio.out_qs
2924 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
2925 int tx_bytes = skb->len;
2926 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
2927 int data_offset = -1;
2928 int nr_frags;
2929
2930 if (((card->info.type == QETH_CARD_TYPE_IQD) && (!ipv)) ||
2931 card->options.sniffer)
2932 goto tx_drop;
2933
2934 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2935 card->stats.tx_carrier_errors++;
2936 goto tx_drop;
2937 }
2938
2939 if ((cast_type == RTN_BROADCAST) &&
2940 (card->info.broadcast_capable == 0))
2941 goto tx_drop;
2942
2943 if (card->options.performance_stats) {
2944 card->perf_stats.outbound_cnt++;
2945 card->perf_stats.outbound_start_time = qeth_get_micros();
2946 }
2947
2948 if (skb_is_gso(skb))
2949 large_send = card->options.large_send;
2950
2951 if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
2952 (skb_shinfo(skb)->nr_frags == 0)) {
2953 new_skb = skb;
2954 data_offset = ETH_HLEN;
2955 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2956 if (!hdr)
2957 goto tx_drop;
2958 elements_needed++;
2959 } else {
2960 /* create a clone with writeable headroom */
2961 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2962 + VLAN_HLEN);
2963 if (!new_skb)
2964 goto tx_drop;
2965 }
2966
2967 if (card->info.type == QETH_CARD_TYPE_IQD) {
2968 if (data_offset < 0)
2969 skb_pull(new_skb, ETH_HLEN);
2970 } else {
2971 if (ipv == 4) {
2972 if (card->dev->type == ARPHRD_IEEE802_TR)
2973 skb_pull(new_skb, TR_HLEN);
2974 else
2975 skb_pull(new_skb, ETH_HLEN);
2976 }
2977
2978 if (ipv == 6 && card->vlangrp &&
2979 vlan_tx_tag_present(new_skb)) {
2980 skb_push(new_skb, VLAN_HLEN);
2981 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2982 skb_copy_to_linear_data_offset(new_skb, 4,
2983 new_skb->data + 8, 4);
2984 skb_copy_to_linear_data_offset(new_skb, 8,
2985 new_skb->data + 12, 4);
2986 tag = (u16 *)(new_skb->data + 12);
2987 *tag = __constant_htons(ETH_P_8021Q);
2988 *(tag + 1) = htons(vlan_tx_tag_get(new_skb));
2989 new_skb->vlan_tci = 0;
2990 }
2991 }
2992
2993 netif_stop_queue(dev);
2994
2995 /* fix hardware limitation: as long as we do not have sbal
2996 * chaining we can not send long frag lists
2997 */
2998 if (large_send == QETH_LARGE_SEND_TSO) {
2999 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
3000 if (skb_linearize(new_skb))
3001 goto tx_drop;
3002 if (card->options.performance_stats)
3003 card->perf_stats.tx_lin++;
3004 }
3005 }
3006
3007 if ((large_send == QETH_LARGE_SEND_TSO) &&
3008 (cast_type == RTN_UNSPEC)) {
3009 hdr = (struct qeth_hdr *)skb_push(new_skb,
3010 sizeof(struct qeth_hdr_tso));
3011 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
3012 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
3013 qeth_tso_fill_header(card, hdr, new_skb);
3014 elements_needed++;
3015 } else {
3016 if (data_offset < 0) {
3017 hdr = (struct qeth_hdr *)skb_push(new_skb,
3018 sizeof(struct qeth_hdr));
3019 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3020 cast_type);
3021 } else {
3022 qeth_l3_fill_header(card, hdr, new_skb, ipv,
3023 cast_type);
3024 hdr->hdr.l3.length = new_skb->len - data_offset;
3025 }
3026
3027 if (skb->ip_summed == CHECKSUM_PARTIAL)
3028 qeth_l3_hdr_csum(card, hdr, new_skb);
3029 }
3030
3031 elems = qeth_get_elements_no(card, (void *)hdr, new_skb,
3032 elements_needed);
3033 if (!elems) {
3034 if (data_offset >= 0)
3035 kmem_cache_free(qeth_core_header_cache, hdr);
3036 goto tx_drop;
3037 }
3038 elements_needed += elems;
3039 nr_frags = skb_shinfo(new_skb)->nr_frags;
3040
3041 if (card->info.type != QETH_CARD_TYPE_IQD) {
3042 int len;
3043 if (large_send == QETH_LARGE_SEND_TSO)
3044 len = ((unsigned long)tcp_hdr(new_skb) +
3045 tcp_hdr(new_skb)->doff * 4) -
3046 (unsigned long)new_skb->data;
3047 else
3048 len = sizeof(struct qeth_hdr_layer3);
3049
3050 if (qeth_hdr_chk_and_bounce(new_skb, len))
3051 goto tx_drop;
3052 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
3053 elements_needed);
3054 } else
3055 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
3056 elements_needed, data_offset, 0);
3057
3058 if (!rc) {
3059 card->stats.tx_packets++;
3060 card->stats.tx_bytes += tx_bytes;
3061 if (new_skb != skb)
3062 dev_kfree_skb_any(skb);
3063 if (card->options.performance_stats) {
3064 if (large_send != QETH_LARGE_SEND_NO) {
3065 card->perf_stats.large_send_bytes += tx_bytes;
3066 card->perf_stats.large_send_cnt++;
3067 }
3068 if (nr_frags) {
3069 card->perf_stats.sg_skbs_sent++;
3070 /* nr_frags + skb->data */
3071 card->perf_stats.sg_frags_sent += nr_frags + 1;
3072 }
3073 }
3074 rc = NETDEV_TX_OK;
3075 } else {
3076 if (data_offset >= 0)
3077 kmem_cache_free(qeth_core_header_cache, hdr);
3078
3079 if (rc == -EBUSY) {
3080 if (new_skb != skb)
3081 dev_kfree_skb_any(new_skb);
3082 return NETDEV_TX_BUSY;
3083 } else
3084 goto tx_drop;
3085 }
3086
3087 netif_wake_queue(dev);
3088 if (card->options.performance_stats)
3089 card->perf_stats.outbound_time += qeth_get_micros() -
3090 card->perf_stats.outbound_start_time;
3091 return rc;
3092
3093 tx_drop:
3094 card->stats.tx_dropped++;
3095 card->stats.tx_errors++;
3096 if ((new_skb != skb) && new_skb)
3097 dev_kfree_skb_any(new_skb);
3098 dev_kfree_skb_any(skb);
3099 netif_wake_queue(dev);
3100 return NETDEV_TX_OK;
3101 }
3102
3103 static int qeth_l3_open(struct net_device *dev)
3104 {
3105 struct qeth_card *card = dev->ml_priv;
3106
3107 QETH_CARD_TEXT(card, 4, "qethopen");
3108 if (card->state != CARD_STATE_SOFTSETUP)
3109 return -ENODEV;
3110 card->data.state = CH_STATE_UP;
3111 card->state = CARD_STATE_UP;
3112 netif_start_queue(dev);
3113
3114 if (!card->lan_online && netif_carrier_ok(dev))
3115 netif_carrier_off(dev);
3116 return 0;
3117 }
3118
3119 static int qeth_l3_stop(struct net_device *dev)
3120 {
3121 struct qeth_card *card = dev->ml_priv;
3122
3123 QETH_CARD_TEXT(card, 4, "qethstop");
3124 netif_tx_disable(dev);
3125 if (card->state == CARD_STATE_UP)
3126 card->state = CARD_STATE_SOFTSETUP;
3127 return 0;
3128 }
3129
3130 static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev)
3131 {
3132 struct qeth_card *card = dev->ml_priv;
3133
3134 return (card->options.checksum_type == HW_CHECKSUMMING);
3135 }
3136
3137 static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data)
3138 {
3139 struct qeth_card *card = dev->ml_priv;
3140 enum qeth_checksum_types csum_type;
3141
3142 if (data)
3143 csum_type = HW_CHECKSUMMING;
3144 else
3145 csum_type = SW_CHECKSUMMING;
3146
3147 return qeth_l3_set_rx_csum(card, csum_type);
3148 }
3149
3150 static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data)
3151 {
3152 struct qeth_card *card = dev->ml_priv;
3153 int rc = 0;
3154
3155 if (data) {
3156 rc = qeth_l3_set_large_send(card, QETH_LARGE_SEND_TSO);
3157 } else {
3158 dev->features &= ~NETIF_F_TSO;
3159 card->options.large_send = QETH_LARGE_SEND_NO;
3160 }
3161 return rc;
3162 }
3163
3164 static int qeth_l3_ethtool_set_tx_csum(struct net_device *dev, u32 data)
3165 {
3166 struct qeth_card *card = dev->ml_priv;
3167
3168 if (data) {
3169 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3170 dev->features |= NETIF_F_IP_CSUM;
3171 else
3172 return -EPERM;
3173 } else
3174 dev->features &= ~NETIF_F_IP_CSUM;
3175
3176 return 0;
3177 }
3178
3179 static const struct ethtool_ops qeth_l3_ethtool_ops = {
3180 .get_link = ethtool_op_get_link,
3181 .get_tx_csum = ethtool_op_get_tx_csum,
3182 .set_tx_csum = qeth_l3_ethtool_set_tx_csum,
3183 .get_rx_csum = qeth_l3_ethtool_get_rx_csum,
3184 .set_rx_csum = qeth_l3_ethtool_set_rx_csum,
3185 .get_sg = ethtool_op_get_sg,
3186 .set_sg = ethtool_op_set_sg,
3187 .get_tso = ethtool_op_get_tso,
3188 .set_tso = qeth_l3_ethtool_set_tso,
3189 .get_strings = qeth_core_get_strings,
3190 .get_ethtool_stats = qeth_core_get_ethtool_stats,
3191 .get_sset_count = qeth_core_get_sset_count,
3192 .get_drvinfo = qeth_core_get_drvinfo,
3193 .get_settings = qeth_core_ethtool_get_settings,
3194 };
3195
3196 /*
3197 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3198 * NOARP on the netdevice is no option because it also turns off neighbor
3199 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3200 * arp resolution but we want the hard header (packet socket will work
3201 * e.g. tcpdump)
3202 */
3203 static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3204 {
3205 n->nud_state = NUD_NOARP;
3206 memcpy(n->ha, "FAKELL", 6);
3207 n->output = n->ops->connected_output;
3208 return 0;
3209 }
3210
3211 static int
3212 qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3213 {
3214 if (np->tbl->family == AF_INET)
3215 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3216
3217 return 0;
3218 }
3219
3220 static const struct net_device_ops qeth_l3_netdev_ops = {
3221 .ndo_open = qeth_l3_open,
3222 .ndo_stop = qeth_l3_stop,
3223 .ndo_get_stats = qeth_get_stats,
3224 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3225 .ndo_validate_addr = eth_validate_addr,
3226 .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3227 .ndo_do_ioctl = qeth_l3_do_ioctl,
3228 .ndo_change_mtu = qeth_change_mtu,
3229 .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
3230 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3231 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3232 .ndo_tx_timeout = qeth_tx_timeout,
3233 };
3234
3235 static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3236 .ndo_open = qeth_l3_open,
3237 .ndo_stop = qeth_l3_stop,
3238 .ndo_get_stats = qeth_get_stats,
3239 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3240 .ndo_validate_addr = eth_validate_addr,
3241 .ndo_set_multicast_list = qeth_l3_set_multicast_list,
3242 .ndo_do_ioctl = qeth_l3_do_ioctl,
3243 .ndo_change_mtu = qeth_change_mtu,
3244 .ndo_vlan_rx_register = qeth_l3_vlan_rx_register,
3245 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3246 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3247 .ndo_tx_timeout = qeth_tx_timeout,
3248 .ndo_neigh_setup = qeth_l3_neigh_setup,
3249 };
3250
3251 static int qeth_l3_setup_netdev(struct qeth_card *card)
3252 {
3253 if (card->info.type == QETH_CARD_TYPE_OSD ||
3254 card->info.type == QETH_CARD_TYPE_OSX) {
3255 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3256 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3257 #ifdef CONFIG_TR
3258 card->dev = alloc_trdev(0);
3259 #endif
3260 if (!card->dev)
3261 return -ENODEV;
3262 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3263 } else {
3264 card->dev = alloc_etherdev(0);
3265 if (!card->dev)
3266 return -ENODEV;
3267 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
3268
3269 /*IPv6 address autoconfiguration stuff*/
3270 qeth_l3_get_unique_id(card);
3271 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3272 card->dev->dev_id = card->info.unique_id &
3273 0xffff;
3274 }
3275 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3276 card->dev = alloc_netdev(0, "hsi%d", ether_setup);
3277 if (!card->dev)
3278 return -ENODEV;
3279 card->dev->flags |= IFF_NOARP;
3280 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3281 qeth_l3_iqd_read_initial_mac(card);
3282 } else
3283 return -ENODEV;
3284
3285 card->dev->ml_priv = card;
3286 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3287 card->dev->mtu = card->info.initial_mtu;
3288 SET_ETHTOOL_OPS(card->dev, &qeth_l3_ethtool_ops);
3289 card->dev->features |= NETIF_F_HW_VLAN_TX |
3290 NETIF_F_HW_VLAN_RX |
3291 NETIF_F_HW_VLAN_FILTER;
3292 card->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
3293 card->dev->gso_max_size = 15 * PAGE_SIZE;
3294
3295 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3296 return register_netdev(card->dev);
3297 }
3298
3299 static void qeth_l3_qdio_input_handler(struct ccw_device *ccwdev,
3300 unsigned int qdio_err, unsigned int queue, int first_element,
3301 int count, unsigned long card_ptr)
3302 {
3303 struct net_device *net_dev;
3304 struct qeth_card *card;
3305 struct qeth_qdio_buffer *buffer;
3306 int index;
3307 int i;
3308
3309 card = (struct qeth_card *) card_ptr;
3310 net_dev = card->dev;
3311 if (card->options.performance_stats) {
3312 card->perf_stats.inbound_cnt++;
3313 card->perf_stats.inbound_start_time = qeth_get_micros();
3314 }
3315 if (qdio_err & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
3316 QETH_CARD_TEXT(card, 1, "qdinchk");
3317 QETH_CARD_TEXT_(card, 1, "%04X%04X",
3318 first_element, count);
3319 QETH_CARD_TEXT_(card, 1, "%04X", queue);
3320 qeth_schedule_recovery(card);
3321 return;
3322 }
3323 for (i = first_element; i < (first_element + count); ++i) {
3324 index = i % QDIO_MAX_BUFFERS_PER_Q;
3325 buffer = &card->qdio.in_q->bufs[index];
3326 if (!(qdio_err &&
3327 qeth_check_qdio_errors(card, buffer->buffer,
3328 qdio_err, "qinerr")))
3329 qeth_l3_process_inbound_buffer(card, buffer, index);
3330 /* clear buffer and give back to hardware */
3331 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
3332 qeth_queue_input_buffer(card, index);
3333 }
3334 if (card->options.performance_stats)
3335 card->perf_stats.inbound_time += qeth_get_micros() -
3336 card->perf_stats.inbound_start_time;
3337 }
3338
3339 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3340 {
3341 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3342
3343 qeth_l3_create_device_attributes(&gdev->dev);
3344 card->options.layer2 = 0;
3345 card->discipline.input_handler = (qdio_handler_t *)
3346 qeth_l3_qdio_input_handler;
3347 card->discipline.output_handler = (qdio_handler_t *)
3348 qeth_qdio_output_handler;
3349 card->discipline.recover = qeth_l3_recover;
3350 return 0;
3351 }
3352
3353 static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3354 {
3355 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3356
3357 qeth_l3_remove_device_attributes(&cgdev->dev);
3358
3359 qeth_set_allowed_threads(card, 0, 1);
3360 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3361
3362 if (cgdev->state == CCWGROUP_ONLINE) {
3363 card->use_hard_stop = 1;
3364 qeth_l3_set_offline(cgdev);
3365 }
3366
3367 if (card->dev) {
3368 unregister_netdev(card->dev);
3369 card->dev = NULL;
3370 }
3371
3372 qeth_l3_clear_ip_list(card, 0, 0);
3373 qeth_l3_clear_ipato_list(card);
3374 return;
3375 }
3376
3377 static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3378 {
3379 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3380 int rc = 0;
3381 enum qeth_card_states recover_flag;
3382
3383 BUG_ON(!card);
3384 mutex_lock(&card->discipline_mutex);
3385 mutex_lock(&card->conf_mutex);
3386 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3387 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3388
3389 recover_flag = card->state;
3390 rc = qeth_core_hardsetup_card(card);
3391 if (rc) {
3392 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3393 rc = -ENODEV;
3394 goto out_remove;
3395 }
3396
3397 qeth_l3_query_ipassists(card, QETH_PROT_IPV4);
3398
3399 if (!card->dev && qeth_l3_setup_netdev(card)) {
3400 rc = -ENODEV;
3401 goto out_remove;
3402 }
3403
3404 card->state = CARD_STATE_HARDSETUP;
3405 qeth_print_status_message(card);
3406
3407 /* softsetup */
3408 QETH_DBF_TEXT(SETUP, 2, "softsetp");
3409
3410 rc = qeth_send_startlan(card);
3411 if (rc) {
3412 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3413 if (rc == 0xe080) {
3414 dev_warn(&card->gdev->dev,
3415 "The LAN is offline\n");
3416 card->lan_online = 0;
3417 goto out;
3418 }
3419 rc = -ENODEV;
3420 goto out_remove;
3421 } else
3422 card->lan_online = 1;
3423
3424 rc = qeth_l3_setadapter_parms(card);
3425 if (rc)
3426 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3427 if (!card->options.sniffer) {
3428 rc = qeth_l3_start_ipassists(card);
3429 if (rc)
3430 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3431 qeth_l3_set_large_send(card, card->options.large_send);
3432 rc = qeth_l3_setrouting_v4(card);
3433 if (rc)
3434 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3435 rc = qeth_l3_setrouting_v6(card);
3436 if (rc)
3437 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3438 }
3439 netif_tx_disable(card->dev);
3440
3441 rc = qeth_init_qdio_queues(card);
3442 if (rc) {
3443 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3444 rc = -ENODEV;
3445 goto out_remove;
3446 }
3447 card->state = CARD_STATE_SOFTSETUP;
3448 netif_carrier_on(card->dev);
3449
3450 qeth_set_allowed_threads(card, 0xffffffff, 0);
3451 qeth_l3_set_ip_addr_list(card);
3452 if (recover_flag == CARD_STATE_RECOVER) {
3453 if (recovery_mode)
3454 qeth_l3_open(card->dev);
3455 else {
3456 rtnl_lock();
3457 dev_open(card->dev);
3458 rtnl_unlock();
3459 }
3460 qeth_l3_set_multicast_list(card->dev);
3461 }
3462 /* let user_space know that device is online */
3463 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3464 out:
3465 mutex_unlock(&card->conf_mutex);
3466 mutex_unlock(&card->discipline_mutex);
3467 return 0;
3468 out_remove:
3469 card->use_hard_stop = 1;
3470 qeth_l3_stop_card(card, 0);
3471 ccw_device_set_offline(CARD_DDEV(card));
3472 ccw_device_set_offline(CARD_WDEV(card));
3473 ccw_device_set_offline(CARD_RDEV(card));
3474 if (recover_flag == CARD_STATE_RECOVER)
3475 card->state = CARD_STATE_RECOVER;
3476 else
3477 card->state = CARD_STATE_DOWN;
3478 mutex_unlock(&card->conf_mutex);
3479 mutex_unlock(&card->discipline_mutex);
3480 return rc;
3481 }
3482
3483 static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3484 {
3485 return __qeth_l3_set_online(gdev, 0);
3486 }
3487
3488 static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3489 int recovery_mode)
3490 {
3491 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3492 int rc = 0, rc2 = 0, rc3 = 0;
3493 enum qeth_card_states recover_flag;
3494
3495 mutex_lock(&card->discipline_mutex);
3496 mutex_lock(&card->conf_mutex);
3497 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3498 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3499
3500 if (card->dev && netif_carrier_ok(card->dev))
3501 netif_carrier_off(card->dev);
3502 recover_flag = card->state;
3503 qeth_l3_stop_card(card, recovery_mode);
3504 rc = ccw_device_set_offline(CARD_DDEV(card));
3505 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3506 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3507 if (!rc)
3508 rc = (rc2) ? rc2 : rc3;
3509 if (rc)
3510 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3511 if (recover_flag == CARD_STATE_UP)
3512 card->state = CARD_STATE_RECOVER;
3513 /* let user_space know that device is offline */
3514 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3515 mutex_unlock(&card->conf_mutex);
3516 mutex_unlock(&card->discipline_mutex);
3517 return 0;
3518 }
3519
3520 static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3521 {
3522 return __qeth_l3_set_offline(cgdev, 0);
3523 }
3524
3525 static int qeth_l3_recover(void *ptr)
3526 {
3527 struct qeth_card *card;
3528 int rc = 0;
3529
3530 card = (struct qeth_card *) ptr;
3531 QETH_CARD_TEXT(card, 2, "recover1");
3532 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3533 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3534 return 0;
3535 QETH_CARD_TEXT(card, 2, "recover2");
3536 dev_warn(&card->gdev->dev,
3537 "A recovery process has been started for the device\n");
3538 card->use_hard_stop = 1;
3539 __qeth_l3_set_offline(card->gdev, 1);
3540 rc = __qeth_l3_set_online(card->gdev, 1);
3541 /* don't run another scheduled recovery */
3542 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3543 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3544 if (!rc)
3545 dev_info(&card->gdev->dev,
3546 "Device successfully recovered!\n");
3547 else {
3548 rtnl_lock();
3549 dev_close(card->dev);
3550 rtnl_unlock();
3551 dev_warn(&card->gdev->dev, "The qeth device driver "
3552 "failed to recover an error on the device\n");
3553 }
3554 return 0;
3555 }
3556
3557 static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3558 {
3559 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3560 qeth_l3_clear_ip_list(card, 0, 0);
3561 qeth_qdio_clear_card(card, 0);
3562 qeth_clear_qdio_buffers(card);
3563 }
3564
3565 static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3566 {
3567 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3568
3569 if (card->dev)
3570 netif_device_detach(card->dev);
3571 qeth_set_allowed_threads(card, 0, 1);
3572 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3573 if (gdev->state == CCWGROUP_OFFLINE)
3574 return 0;
3575 if (card->state == CARD_STATE_UP) {
3576 card->use_hard_stop = 1;
3577 __qeth_l3_set_offline(card->gdev, 1);
3578 } else
3579 __qeth_l3_set_offline(card->gdev, 0);
3580 return 0;
3581 }
3582
3583 static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3584 {
3585 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3586 int rc = 0;
3587
3588 if (gdev->state == CCWGROUP_OFFLINE)
3589 goto out;
3590
3591 if (card->state == CARD_STATE_RECOVER) {
3592 rc = __qeth_l3_set_online(card->gdev, 1);
3593 if (rc) {
3594 rtnl_lock();
3595 dev_close(card->dev);
3596 rtnl_unlock();
3597 }
3598 } else
3599 rc = __qeth_l3_set_online(card->gdev, 0);
3600 out:
3601 qeth_set_allowed_threads(card, 0xffffffff, 0);
3602 if (card->dev)
3603 netif_device_attach(card->dev);
3604 if (rc)
3605 dev_warn(&card->gdev->dev, "The qeth device driver "
3606 "failed to recover an error on the device\n");
3607 return rc;
3608 }
3609
3610 struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
3611 .probe = qeth_l3_probe_device,
3612 .remove = qeth_l3_remove_device,
3613 .set_online = qeth_l3_set_online,
3614 .set_offline = qeth_l3_set_offline,
3615 .shutdown = qeth_l3_shutdown,
3616 .freeze = qeth_l3_pm_suspend,
3617 .thaw = qeth_l3_pm_resume,
3618 .restore = qeth_l3_pm_resume,
3619 };
3620 EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
3621
3622 static int qeth_l3_ip_event(struct notifier_block *this,
3623 unsigned long event, void *ptr)
3624 {
3625 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3626 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3627 struct qeth_ipaddr *addr;
3628 struct qeth_card *card;
3629
3630 if (dev_net(dev) != &init_net)
3631 return NOTIFY_DONE;
3632
3633 card = qeth_l3_get_card_from_dev(dev);
3634 QETH_CARD_TEXT(card, 3, "ipevent");
3635 if (!card)
3636 return NOTIFY_DONE;
3637
3638 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3639 if (addr != NULL) {
3640 addr->u.a4.addr = ifa->ifa_address;
3641 addr->u.a4.mask = ifa->ifa_mask;
3642 addr->type = QETH_IP_TYPE_NORMAL;
3643 } else
3644 goto out;
3645
3646 switch (event) {
3647 case NETDEV_UP:
3648 if (!qeth_l3_add_ip(card, addr))
3649 kfree(addr);
3650 break;
3651 case NETDEV_DOWN:
3652 if (!qeth_l3_delete_ip(card, addr))
3653 kfree(addr);
3654 break;
3655 default:
3656 break;
3657 }
3658 qeth_l3_set_ip_addr_list(card);
3659 out:
3660 return NOTIFY_DONE;
3661 }
3662
3663 static struct notifier_block qeth_l3_ip_notifier = {
3664 qeth_l3_ip_event,
3665 NULL,
3666 };
3667
3668 #ifdef CONFIG_QETH_IPV6
3669 /**
3670 * IPv6 event handler
3671 */
3672 static int qeth_l3_ip6_event(struct notifier_block *this,
3673 unsigned long event, void *ptr)
3674 {
3675 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3676 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3677 struct qeth_ipaddr *addr;
3678 struct qeth_card *card;
3679
3680
3681 card = qeth_l3_get_card_from_dev(dev);
3682 if (!card)
3683 return NOTIFY_DONE;
3684 QETH_CARD_TEXT(card, 3, "ip6event");
3685 if (!qeth_is_supported(card, IPA_IPV6))
3686 return NOTIFY_DONE;
3687
3688 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3689 if (addr != NULL) {
3690 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3691 addr->u.a6.pfxlen = ifa->prefix_len;
3692 addr->type = QETH_IP_TYPE_NORMAL;
3693 } else
3694 goto out;
3695
3696 switch (event) {
3697 case NETDEV_UP:
3698 if (!qeth_l3_add_ip(card, addr))
3699 kfree(addr);
3700 break;
3701 case NETDEV_DOWN:
3702 if (!qeth_l3_delete_ip(card, addr))
3703 kfree(addr);
3704 break;
3705 default:
3706 break;
3707 }
3708 qeth_l3_set_ip_addr_list(card);
3709 out:
3710 return NOTIFY_DONE;
3711 }
3712
3713 static struct notifier_block qeth_l3_ip6_notifier = {
3714 qeth_l3_ip6_event,
3715 NULL,
3716 };
3717 #endif
3718
3719 static int qeth_l3_register_notifiers(void)
3720 {
3721 int rc;
3722
3723 QETH_DBF_TEXT(SETUP, 5, "regnotif");
3724 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3725 if (rc)
3726 return rc;
3727 #ifdef CONFIG_QETH_IPV6
3728 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3729 if (rc) {
3730 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3731 return rc;
3732 }
3733 #else
3734 pr_warning("There is no IPv6 support for the layer 3 discipline\n");
3735 #endif
3736 return 0;
3737 }
3738
3739 static void qeth_l3_unregister_notifiers(void)
3740 {
3741
3742 QETH_DBF_TEXT(SETUP, 5, "unregnot");
3743 BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3744 #ifdef CONFIG_QETH_IPV6
3745 BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3746 #endif /* QETH_IPV6 */
3747 }
3748
3749 static int __init qeth_l3_init(void)
3750 {
3751 int rc = 0;
3752
3753 pr_info("register layer 3 discipline\n");
3754 rc = qeth_l3_register_notifiers();
3755 return rc;
3756 }
3757
3758 static void __exit qeth_l3_exit(void)
3759 {
3760 qeth_l3_unregister_notifiers();
3761 pr_info("unregister layer 3 discipline\n");
3762 }
3763
3764 module_init(qeth_l3_init);
3765 module_exit(qeth_l3_exit);
3766 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3767 MODULE_DESCRIPTION("qeth layer 3 discipline");
3768 MODULE_LICENSE("GPL");
Tomato firmware and modifications.