1
2
3
4
5
6
7
8
9#define KMSG_COMPONENT "qeth"
10#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
11
12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/bitops.h>
15#include <linux/string.h>
16#include <linux/errno.h>
17#include <linux/kernel.h>
18#include <linux/etherdevice.h>
19#include <linux/mii.h>
20#include <linux/ip.h>
21#include <linux/ipv6.h>
22#include <linux/inetdevice.h>
23#include <linux/igmp.h>
24#include <linux/slab.h>
25#include <linux/if_vlan.h>
26
27#include <net/ip.h>
28#include <net/arp.h>
29#include <net/route.h>
30#include <net/ip6_fib.h>
31#include <net/ip6_checksum.h>
32#include <net/iucv/af_iucv.h>
33
34#include "qeth_l3.h"
35
36
37static int qeth_l3_set_offline(struct ccwgroup_device *);
38static int qeth_l3_recover(void *);
39static int qeth_l3_stop(struct net_device *);
40static void qeth_l3_set_multicast_list(struct net_device *);
41static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
42static int qeth_l3_register_addr_entry(struct qeth_card *,
43 struct qeth_ipaddr *);
44static int qeth_l3_deregister_addr_entry(struct qeth_card *,
45 struct qeth_ipaddr *);
46static int __qeth_l3_set_online(struct ccwgroup_device *, int);
47static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
48
49static int qeth_l3_isxdigit(char *buf)
50{
51 while (*buf) {
52 if (!isxdigit(*buf++))
53 return 0;
54 }
55 return 1;
56}
57
58static void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
59{
60 sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
61}
62
63static int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
64{
65 int count = 0, rc = 0;
66 unsigned int in[4];
67 char c;
68
69 rc = sscanf(buf, "%u.%u.%u.%u%c",
70 &in[0], &in[1], &in[2], &in[3], &c);
71 if (rc != 4 && (rc != 5 || c != '\n'))
72 return -EINVAL;
73 for (count = 0; count < 4; count++) {
74 if (in[count] > 255)
75 return -EINVAL;
76 addr[count] = in[count];
77 }
78 return 0;
79}
80
81static void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
82{
83 sprintf(buf, "%pI6", addr);
84}
85
86static int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
87{
88 const char *end, *end_tmp, *start;
89 __u16 *in;
90 char num[5];
91 int num2, cnt, out, found, save_cnt;
92 unsigned short in_tmp[8] = {0, };
93
94 cnt = out = found = save_cnt = num2 = 0;
95 end = start = buf;
96 in = (__u16 *) addr;
97 memset(in, 0, 16);
98 while (*end) {
99 end = strchr(start, ':');
100 if (end == NULL) {
101 end = buf + strlen(buf);
102 end_tmp = strchr(start, '\n');
103 if (end_tmp != NULL)
104 end = end_tmp;
105 out = 1;
106 }
107 if ((end - start)) {
108 memset(num, 0, 5);
109 if ((end - start) > 4)
110 return -EINVAL;
111 memcpy(num, start, end - start);
112 if (!qeth_l3_isxdigit(num))
113 return -EINVAL;
114 sscanf(start, "%x", &num2);
115 if (found)
116 in_tmp[save_cnt++] = num2;
117 else
118 in[cnt++] = num2;
119 if (out)
120 break;
121 } else {
122 if (found)
123 return -EINVAL;
124 found = 1;
125 }
126 start = ++end;
127 }
128 if (cnt + save_cnt > 8)
129 return -EINVAL;
130 cnt = 7;
131 while (save_cnt)
132 in[cnt--] = in_tmp[--save_cnt];
133 return 0;
134}
135
136void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
137 char *buf)
138{
139 if (proto == QETH_PROT_IPV4)
140 qeth_l3_ipaddr4_to_string(addr, buf);
141 else if (proto == QETH_PROT_IPV6)
142 qeth_l3_ipaddr6_to_string(addr, buf);
143}
144
145int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
146 __u8 *addr)
147{
148 if (proto == QETH_PROT_IPV4)
149 return qeth_l3_string_to_ipaddr4(buf, addr);
150 else if (proto == QETH_PROT_IPV6)
151 return qeth_l3_string_to_ipaddr6(buf, addr);
152 else
153 return -EINVAL;
154}
155
156static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
157{
158 int i, j;
159 u8 octet;
160
161 for (i = 0; i < len; ++i) {
162 octet = addr[i];
163 for (j = 7; j >= 0; --j) {
164 bits[i*8 + j] = octet & 1;
165 octet >>= 1;
166 }
167 }
168}
169
170int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
171 struct qeth_ipaddr *addr)
172{
173 struct qeth_ipato_entry *ipatoe;
174 u8 addr_bits[128] = {0, };
175 u8 ipatoe_bits[128] = {0, };
176 int rc = 0;
177
178 if (!card->ipato.enabled)
179 return 0;
180
181 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
182 (addr->proto == QETH_PROT_IPV4)? 4:16);
183 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
184 if (addr->proto != ipatoe->proto)
185 continue;
186 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
187 (ipatoe->proto == QETH_PROT_IPV4) ?
188 4 : 16);
189 if (addr->proto == QETH_PROT_IPV4)
190 rc = !memcmp(addr_bits, ipatoe_bits,
191 min(32, ipatoe->mask_bits));
192 else
193 rc = !memcmp(addr_bits, ipatoe_bits,
194 min(128, ipatoe->mask_bits));
195 if (rc)
196 break;
197 }
198
199 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
200 rc = !rc;
201 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
202 rc = !rc;
203
204 return rc;
205}
206
207
208
209
210
211
212static int __qeth_l3_insert_ip_todo(struct qeth_card *card,
213 struct qeth_ipaddr *addr, int add)
214{
215 struct qeth_ipaddr *tmp, *t;
216 int found = 0;
217
218 if (card->options.sniffer)
219 return 0;
220 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
221 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
222 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
223 return 0;
224 if ((tmp->proto == QETH_PROT_IPV4) &&
225 (addr->proto == QETH_PROT_IPV4) &&
226 (tmp->type == addr->type) &&
227 (tmp->is_multicast == addr->is_multicast) &&
228 (tmp->u.a4.addr == addr->u.a4.addr) &&
229 (tmp->u.a4.mask == addr->u.a4.mask)) {
230 found = 1;
231 break;
232 }
233 if ((tmp->proto == QETH_PROT_IPV6) &&
234 (addr->proto == QETH_PROT_IPV6) &&
235 (tmp->type == addr->type) &&
236 (tmp->is_multicast == addr->is_multicast) &&
237 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) &&
238 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
239 sizeof(struct in6_addr)) == 0)) {
240 found = 1;
241 break;
242 }
243 }
244 if (found) {
245 if (addr->users != 0)
246 tmp->users += addr->users;
247 else
248 tmp->users += add ? 1 : -1;
249 if (tmp->users == 0) {
250 list_del(&tmp->entry);
251 kfree(tmp);
252 }
253 return 0;
254 } else {
255 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
256 list_add(&addr->entry, card->ip_tbd_list);
257 else {
258 if (addr->users == 0)
259 addr->users += add ? 1 : -1;
260 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
261 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
262 QETH_CARD_TEXT(card, 2, "tkovaddr");
263 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
264 }
265 list_add_tail(&addr->entry, card->ip_tbd_list);
266 }
267 return 1;
268 }
269}
270
271int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
272{
273 unsigned long flags;
274 int rc = 0;
275
276 QETH_CARD_TEXT(card, 4, "delip");
277
278 if (addr->proto == QETH_PROT_IPV4)
279 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
280 else {
281 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
282 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
283 }
284 spin_lock_irqsave(&card->ip_lock, flags);
285 rc = __qeth_l3_insert_ip_todo(card, addr, 0);
286 spin_unlock_irqrestore(&card->ip_lock, flags);
287 return rc;
288}
289
290int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
291{
292 unsigned long flags;
293 int rc = 0;
294
295 QETH_CARD_TEXT(card, 4, "addip");
296 if (addr->proto == QETH_PROT_IPV4)
297 QETH_CARD_HEX(card, 4, &addr->u.a4.addr, 4);
298 else {
299 QETH_CARD_HEX(card, 4, &addr->u.a6.addr, 8);
300 QETH_CARD_HEX(card, 4, ((char *)&addr->u.a6.addr) + 8, 8);
301 }
302 spin_lock_irqsave(&card->ip_lock, flags);
303 rc = __qeth_l3_insert_ip_todo(card, addr, 1);
304 spin_unlock_irqrestore(&card->ip_lock, flags);
305 return rc;
306}
307
308
309struct qeth_ipaddr *qeth_l3_get_addr_buffer(
310 enum qeth_prot_versions prot)
311{
312 struct qeth_ipaddr *addr;
313
314 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
315 if (addr == NULL) {
316 return NULL;
317 }
318 addr->type = QETH_IP_TYPE_NORMAL;
319 addr->proto = prot;
320 return addr;
321}
322
323static void qeth_l3_delete_mc_addresses(struct qeth_card *card)
324{
325 struct qeth_ipaddr *iptodo;
326 unsigned long flags;
327
328 QETH_CARD_TEXT(card, 4, "delmc");
329 iptodo = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
330 if (!iptodo) {
331 QETH_CARD_TEXT(card, 2, "dmcnomem");
332 return;
333 }
334 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
335 spin_lock_irqsave(&card->ip_lock, flags);
336 if (!__qeth_l3_insert_ip_todo(card, iptodo, 0))
337 kfree(iptodo);
338 spin_unlock_irqrestore(&card->ip_lock, flags);
339}
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354static int __qeth_l3_ref_ip_on_card(struct qeth_card *card,
355 struct qeth_ipaddr *todo, struct qeth_ipaddr **__addr)
356{
357 struct qeth_ipaddr *addr;
358 int found = 0;
359
360 list_for_each_entry(addr, &card->ip_list, entry) {
361 if ((addr->proto == QETH_PROT_IPV4) &&
362 (todo->proto == QETH_PROT_IPV4) &&
363 (addr->type == todo->type) &&
364 (addr->u.a4.addr == todo->u.a4.addr) &&
365 (addr->u.a4.mask == todo->u.a4.mask)) {
366 found = 1;
367 break;
368 }
369 if ((addr->proto == QETH_PROT_IPV6) &&
370 (todo->proto == QETH_PROT_IPV6) &&
371 (addr->type == todo->type) &&
372 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) &&
373 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
374 sizeof(struct in6_addr)) == 0)) {
375 found = 1;
376 break;
377 }
378 }
379 if (found) {
380 addr->users += todo->users;
381 if (addr->users <= 0) {
382 *__addr = addr;
383 return -1;
384 } else {
385
386 if (addr->type != QETH_IP_TYPE_NORMAL)
387 addr->users = 1;
388 return 0;
389 }
390 }
391 if (todo->users > 0) {
392
393 if (todo->type != QETH_IP_TYPE_NORMAL)
394 todo->users = 1;
395 return 1;
396 } else
397 return 0;
398}
399
400static void __qeth_l3_delete_all_mc(struct qeth_card *card,
401 unsigned long *flags)
402{
403 struct list_head fail_list;
404 struct qeth_ipaddr *addr, *tmp;
405 int rc;
406
407 INIT_LIST_HEAD(&fail_list);
408again:
409 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
410 if (addr->is_multicast) {
411 list_del(&addr->entry);
412 spin_unlock_irqrestore(&card->ip_lock, *flags);
413 rc = qeth_l3_deregister_addr_entry(card, addr);
414 spin_lock_irqsave(&card->ip_lock, *flags);
415 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND))
416 kfree(addr);
417 else
418 list_add_tail(&addr->entry, &fail_list);
419 goto again;
420 }
421 }
422 list_splice(&fail_list, &card->ip_list);
423}
424
425void qeth_l3_set_ip_addr_list(struct qeth_card *card)
426{
427 struct list_head *tbd_list;
428 struct qeth_ipaddr *todo, *addr;
429 unsigned long flags;
430 int rc;
431
432 QETH_CARD_TEXT(card, 2, "sdiplist");
433 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
434
435 if (!qeth_card_hw_is_reachable(card) || card->options.sniffer)
436 return;
437
438 spin_lock_irqsave(&card->ip_lock, flags);
439 tbd_list = card->ip_tbd_list;
440 card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_ATOMIC);
441 if (!card->ip_tbd_list) {
442 QETH_CARD_TEXT(card, 0, "silnomem");
443 card->ip_tbd_list = tbd_list;
444 spin_unlock_irqrestore(&card->ip_lock, flags);
445 return;
446 } else
447 INIT_LIST_HEAD(card->ip_tbd_list);
448
449 while (!list_empty(tbd_list)) {
450 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
451 list_del(&todo->entry);
452 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC) {
453 __qeth_l3_delete_all_mc(card, &flags);
454 kfree(todo);
455 continue;
456 }
457 rc = __qeth_l3_ref_ip_on_card(card, todo, &addr);
458 if (rc == 0) {
459
460 kfree(todo);
461 } else if (rc == 1) {
462
463 spin_unlock_irqrestore(&card->ip_lock, flags);
464 rc = qeth_l3_register_addr_entry(card, todo);
465 spin_lock_irqsave(&card->ip_lock, flags);
466 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
467 list_add_tail(&todo->entry, &card->ip_list);
468 else
469 kfree(todo);
470 } else if (rc == -1) {
471
472 list_del_init(&addr->entry);
473 spin_unlock_irqrestore(&card->ip_lock, flags);
474 rc = qeth_l3_deregister_addr_entry(card, addr);
475 spin_lock_irqsave(&card->ip_lock, flags);
476 if (!rc || (rc == IPA_RC_IP_ADDRESS_NOT_DEFINED))
477 kfree(addr);
478 else
479 list_add_tail(&addr->entry, &card->ip_list);
480 kfree(todo);
481 }
482 }
483 spin_unlock_irqrestore(&card->ip_lock, flags);
484 kfree(tbd_list);
485}
486
487static void qeth_l3_clear_ip_list(struct qeth_card *card, int recover)
488{
489 struct qeth_ipaddr *addr, *tmp;
490 unsigned long flags;
491
492 QETH_CARD_TEXT(card, 4, "clearip");
493 if (recover && card->options.sniffer)
494 return;
495 spin_lock_irqsave(&card->ip_lock, flags);
496
497 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry) {
498 list_del(&addr->entry);
499 kfree(addr);
500 }
501
502 while (!list_empty(&card->ip_list)) {
503 addr = list_entry(card->ip_list.next,
504 struct qeth_ipaddr, entry);
505 list_del_init(&addr->entry);
506 if (!recover || addr->is_multicast) {
507 kfree(addr);
508 continue;
509 }
510 list_add_tail(&addr->entry, card->ip_tbd_list);
511 }
512 spin_unlock_irqrestore(&card->ip_lock, flags);
513}
514
515static int qeth_l3_address_exists_in_list(struct list_head *list,
516 struct qeth_ipaddr *addr, int same_type)
517{
518 struct qeth_ipaddr *tmp;
519
520 list_for_each_entry(tmp, list, entry) {
521 if ((tmp->proto == QETH_PROT_IPV4) &&
522 (addr->proto == QETH_PROT_IPV4) &&
523 ((same_type && (tmp->type == addr->type)) ||
524 (!same_type && (tmp->type != addr->type))) &&
525 (tmp->u.a4.addr == addr->u.a4.addr))
526 return 1;
527
528 if ((tmp->proto == QETH_PROT_IPV6) &&
529 (addr->proto == QETH_PROT_IPV6) &&
530 ((same_type && (tmp->type == addr->type)) ||
531 (!same_type && (tmp->type != addr->type))) &&
532 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
533 sizeof(struct in6_addr)) == 0))
534 return 1;
535
536 }
537 return 0;
538}
539
540static int qeth_l3_send_setdelmc(struct qeth_card *card,
541 struct qeth_ipaddr *addr, int ipacmd)
542{
543 int rc;
544 struct qeth_cmd_buffer *iob;
545 struct qeth_ipa_cmd *cmd;
546
547 QETH_CARD_TEXT(card, 4, "setdelmc");
548
549 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
550 if (!iob)
551 return -ENOMEM;
552 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
553 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
554 if (addr->proto == QETH_PROT_IPV6)
555 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
556 sizeof(struct in6_addr));
557 else
558 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
559
560 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
561
562 return rc;
563}
564
565static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
566{
567 int i, j;
568 for (i = 0; i < 16; i++) {
569 j = (len) - (i * 8);
570 if (j >= 8)
571 netmask[i] = 0xff;
572 else if (j > 0)
573 netmask[i] = (u8)(0xFF00 >> j);
574 else
575 netmask[i] = 0;
576 }
577}
578
579static int qeth_l3_send_setdelip(struct qeth_card *card,
580 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
581{
582 int rc;
583 struct qeth_cmd_buffer *iob;
584 struct qeth_ipa_cmd *cmd;
585 __u8 netmask[16];
586
587 QETH_CARD_TEXT(card, 4, "setdelip");
588 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
589
590 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
591 if (!iob)
592 return -ENOMEM;
593 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
594 if (addr->proto == QETH_PROT_IPV6) {
595 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
596 sizeof(struct in6_addr));
597 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
598 memcpy(cmd->data.setdelip6.mask, netmask,
599 sizeof(struct in6_addr));
600 cmd->data.setdelip6.flags = flags;
601 } else {
602 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
603 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
604 cmd->data.setdelip4.flags = flags;
605 }
606
607 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
608
609 return rc;
610}
611
612static int qeth_l3_send_setrouting(struct qeth_card *card,
613 enum qeth_routing_types type, enum qeth_prot_versions prot)
614{
615 int rc;
616 struct qeth_ipa_cmd *cmd;
617 struct qeth_cmd_buffer *iob;
618
619 QETH_CARD_TEXT(card, 4, "setroutg");
620 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
621 if (!iob)
622 return -ENOMEM;
623 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
624 cmd->data.setrtg.type = (type);
625 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
626
627 return rc;
628}
629
630static int qeth_l3_correct_routing_type(struct qeth_card *card,
631 enum qeth_routing_types *type, enum qeth_prot_versions prot)
632{
633 if (card->info.type == QETH_CARD_TYPE_IQD) {
634 switch (*type) {
635 case NO_ROUTER:
636 case PRIMARY_CONNECTOR:
637 case SECONDARY_CONNECTOR:
638 case MULTICAST_ROUTER:
639 return 0;
640 default:
641 goto out_inval;
642 }
643 } else {
644 switch (*type) {
645 case NO_ROUTER:
646 case PRIMARY_ROUTER:
647 case SECONDARY_ROUTER:
648 return 0;
649 case MULTICAST_ROUTER:
650 if (qeth_is_ipafunc_supported(card, prot,
651 IPA_OSA_MC_ROUTER))
652 return 0;
653 default:
654 goto out_inval;
655 }
656 }
657out_inval:
658 *type = NO_ROUTER;
659 return -EINVAL;
660}
661
662int qeth_l3_setrouting_v4(struct qeth_card *card)
663{
664 int rc;
665
666 QETH_CARD_TEXT(card, 3, "setrtg4");
667
668 rc = qeth_l3_correct_routing_type(card, &card->options.route4.type,
669 QETH_PROT_IPV4);
670 if (rc)
671 return rc;
672
673 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
674 QETH_PROT_IPV4);
675 if (rc) {
676 card->options.route4.type = NO_ROUTER;
677 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
678 " on %s. Type set to 'no router'.\n", rc,
679 QETH_CARD_IFNAME(card));
680 }
681 return rc;
682}
683
684int qeth_l3_setrouting_v6(struct qeth_card *card)
685{
686 int rc = 0;
687
688 QETH_CARD_TEXT(card, 3, "setrtg6");
689#ifdef CONFIG_QETH_IPV6
690
691 if (!qeth_is_supported(card, IPA_IPV6))
692 return 0;
693 rc = qeth_l3_correct_routing_type(card, &card->options.route6.type,
694 QETH_PROT_IPV6);
695 if (rc)
696 return rc;
697
698 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
699 QETH_PROT_IPV6);
700 if (rc) {
701 card->options.route6.type = NO_ROUTER;
702 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
703 " on %s. Type set to 'no router'.\n", rc,
704 QETH_CARD_IFNAME(card));
705 }
706#endif
707 return rc;
708}
709
710
711
712
713static void qeth_l3_clear_ipato_list(struct qeth_card *card)
714{
715
716 struct qeth_ipato_entry *ipatoe, *tmp;
717 unsigned long flags;
718
719 spin_lock_irqsave(&card->ip_lock, flags);
720 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
721 list_del(&ipatoe->entry);
722 kfree(ipatoe);
723 }
724 spin_unlock_irqrestore(&card->ip_lock, flags);
725}
726
727int qeth_l3_add_ipato_entry(struct qeth_card *card,
728 struct qeth_ipato_entry *new)
729{
730 struct qeth_ipato_entry *ipatoe;
731 unsigned long flags;
732 int rc = 0;
733
734 QETH_CARD_TEXT(card, 2, "addipato");
735 spin_lock_irqsave(&card->ip_lock, flags);
736 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
737 if (ipatoe->proto != new->proto)
738 continue;
739 if (!memcmp(ipatoe->addr, new->addr,
740 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
741 (ipatoe->mask_bits == new->mask_bits)) {
742 rc = -EEXIST;
743 break;
744 }
745 }
746 if (!rc)
747 list_add_tail(&new->entry, &card->ipato.entries);
748
749 spin_unlock_irqrestore(&card->ip_lock, flags);
750 return rc;
751}
752
753void qeth_l3_del_ipato_entry(struct qeth_card *card,
754 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
755{
756 struct qeth_ipato_entry *ipatoe, *tmp;
757 unsigned long flags;
758
759 QETH_CARD_TEXT(card, 2, "delipato");
760 spin_lock_irqsave(&card->ip_lock, flags);
761 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
762 if (ipatoe->proto != proto)
763 continue;
764 if (!memcmp(ipatoe->addr, addr,
765 (proto == QETH_PROT_IPV4)? 4:16) &&
766 (ipatoe->mask_bits == mask_bits)) {
767 list_del(&ipatoe->entry);
768 kfree(ipatoe);
769 }
770 }
771 spin_unlock_irqrestore(&card->ip_lock, flags);
772}
773
774
775
776
777int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
778 const u8 *addr)
779{
780 struct qeth_ipaddr *ipaddr;
781 unsigned long flags;
782 int rc = 0;
783
784 ipaddr = qeth_l3_get_addr_buffer(proto);
785 if (ipaddr) {
786 if (proto == QETH_PROT_IPV4) {
787 QETH_CARD_TEXT(card, 2, "addvipa4");
788 memcpy(&ipaddr->u.a4.addr, addr, 4);
789 ipaddr->u.a4.mask = 0;
790 } else if (proto == QETH_PROT_IPV6) {
791 QETH_CARD_TEXT(card, 2, "addvipa6");
792 memcpy(&ipaddr->u.a6.addr, addr, 16);
793 ipaddr->u.a6.pfxlen = 0;
794 }
795 ipaddr->type = QETH_IP_TYPE_VIPA;
796 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
797 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
798 } else
799 return -ENOMEM;
800 spin_lock_irqsave(&card->ip_lock, flags);
801 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
802 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
803 rc = -EEXIST;
804 spin_unlock_irqrestore(&card->ip_lock, flags);
805 if (rc) {
806 kfree(ipaddr);
807 return rc;
808 }
809 if (!qeth_l3_add_ip(card, ipaddr))
810 kfree(ipaddr);
811 qeth_l3_set_ip_addr_list(card);
812 return rc;
813}
814
815void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
816 const u8 *addr)
817{
818 struct qeth_ipaddr *ipaddr;
819
820 ipaddr = qeth_l3_get_addr_buffer(proto);
821 if (ipaddr) {
822 if (proto == QETH_PROT_IPV4) {
823 QETH_CARD_TEXT(card, 2, "delvipa4");
824 memcpy(&ipaddr->u.a4.addr, addr, 4);
825 ipaddr->u.a4.mask = 0;
826 } else if (proto == QETH_PROT_IPV6) {
827 QETH_CARD_TEXT(card, 2, "delvipa6");
828 memcpy(&ipaddr->u.a6.addr, addr, 16);
829 ipaddr->u.a6.pfxlen = 0;
830 }
831 ipaddr->type = QETH_IP_TYPE_VIPA;
832 } else
833 return;
834 if (!qeth_l3_delete_ip(card, ipaddr))
835 kfree(ipaddr);
836 qeth_l3_set_ip_addr_list(card);
837}
838
839
840
841
842int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
843 const u8 *addr)
844{
845 struct qeth_ipaddr *ipaddr;
846 unsigned long flags;
847 int rc = 0;
848
849 ipaddr = qeth_l3_get_addr_buffer(proto);
850 if (ipaddr) {
851 if (proto == QETH_PROT_IPV4) {
852 QETH_CARD_TEXT(card, 2, "addrxip4");
853 memcpy(&ipaddr->u.a4.addr, addr, 4);
854 ipaddr->u.a4.mask = 0;
855 } else if (proto == QETH_PROT_IPV6) {
856 QETH_CARD_TEXT(card, 2, "addrxip6");
857 memcpy(&ipaddr->u.a6.addr, addr, 16);
858 ipaddr->u.a6.pfxlen = 0;
859 }
860 ipaddr->type = QETH_IP_TYPE_RXIP;
861 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
862 ipaddr->del_flags = 0;
863 } else
864 return -ENOMEM;
865 spin_lock_irqsave(&card->ip_lock, flags);
866 if (qeth_l3_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
867 qeth_l3_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
868 rc = -EEXIST;
869 spin_unlock_irqrestore(&card->ip_lock, flags);
870 if (rc) {
871 kfree(ipaddr);
872 return rc;
873 }
874 if (!qeth_l3_add_ip(card, ipaddr))
875 kfree(ipaddr);
876 qeth_l3_set_ip_addr_list(card);
877 return 0;
878}
879
880void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
881 const u8 *addr)
882{
883 struct qeth_ipaddr *ipaddr;
884
885 ipaddr = qeth_l3_get_addr_buffer(proto);
886 if (ipaddr) {
887 if (proto == QETH_PROT_IPV4) {
888 QETH_CARD_TEXT(card, 2, "addrxip4");
889 memcpy(&ipaddr->u.a4.addr, addr, 4);
890 ipaddr->u.a4.mask = 0;
891 } else if (proto == QETH_PROT_IPV6) {
892 QETH_CARD_TEXT(card, 2, "addrxip6");
893 memcpy(&ipaddr->u.a6.addr, addr, 16);
894 ipaddr->u.a6.pfxlen = 0;
895 }
896 ipaddr->type = QETH_IP_TYPE_RXIP;
897 } else
898 return;
899 if (!qeth_l3_delete_ip(card, ipaddr))
900 kfree(ipaddr);
901 qeth_l3_set_ip_addr_list(card);
902}
903
904static int qeth_l3_register_addr_entry(struct qeth_card *card,
905 struct qeth_ipaddr *addr)
906{
907 char buf[50];
908 int rc = 0;
909 int cnt = 3;
910
911 if (addr->proto == QETH_PROT_IPV4) {
912 QETH_CARD_TEXT(card, 2, "setaddr4");
913 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
914 } else if (addr->proto == QETH_PROT_IPV6) {
915 QETH_CARD_TEXT(card, 2, "setaddr6");
916 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
917 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
918 } else {
919 QETH_CARD_TEXT(card, 2, "setaddr?");
920 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
921 }
922 do {
923 if (addr->is_multicast)
924 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
925 else
926 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
927 addr->set_flags);
928 if (rc)
929 QETH_CARD_TEXT(card, 2, "failed");
930 } while ((--cnt > 0) && rc);
931 if (rc) {
932 QETH_CARD_TEXT(card, 2, "FAILED");
933 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
934 dev_warn(&card->gdev->dev,
935 "Registering IP address %s failed\n", buf);
936 }
937 return rc;
938}
939
940static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
941 struct qeth_ipaddr *addr)
942{
943 int rc = 0;
944
945 if (addr->proto == QETH_PROT_IPV4) {
946 QETH_CARD_TEXT(card, 2, "deladdr4");
947 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
948 } else if (addr->proto == QETH_PROT_IPV6) {
949 QETH_CARD_TEXT(card, 2, "deladdr6");
950 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
951 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
952 } else {
953 QETH_CARD_TEXT(card, 2, "deladdr?");
954 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
955 }
956 if (addr->is_multicast)
957 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
958 else
959 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
960 addr->del_flags);
961 if (rc)
962 QETH_CARD_TEXT(card, 2, "failed");
963
964 return rc;
965}
966
967static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
968{
969 if (cast_type == RTN_MULTICAST)
970 return QETH_CAST_MULTICAST;
971 if (cast_type == RTN_BROADCAST)
972 return QETH_CAST_BROADCAST;
973 return QETH_CAST_UNICAST;
974}
975
976static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
977{
978 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
979 if (cast_type == RTN_MULTICAST)
980 return ct | QETH_CAST_MULTICAST;
981 if (cast_type == RTN_ANYCAST)
982 return ct | QETH_CAST_ANYCAST;
983 if (cast_type == RTN_BROADCAST)
984 return ct | QETH_CAST_BROADCAST;
985 return ct | QETH_CAST_UNICAST;
986}
987
988static int qeth_l3_setadapter_parms(struct qeth_card *card)
989{
990 int rc;
991
992 QETH_DBF_TEXT(SETUP, 2, "setadprm");
993
994 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
995 dev_info(&card->gdev->dev,
996 "set adapter parameters not supported.\n");
997 QETH_DBF_TEXT(SETUP, 2, " notsupp");
998 return 0;
999 }
1000 rc = qeth_query_setadapterparms(card);
1001 if (rc) {
1002 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
1003 "0x%x\n", dev_name(&card->gdev->dev), rc);
1004 return rc;
1005 }
1006 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
1007 rc = qeth_setadpparms_change_macaddr(card);
1008 if (rc)
1009 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
1010 " address failed\n");
1011 }
1012
1013 return rc;
1014}
1015
1016static int qeth_l3_default_setassparms_cb(struct qeth_card *card,
1017 struct qeth_reply *reply, unsigned long data)
1018{
1019 struct qeth_ipa_cmd *cmd;
1020
1021 QETH_CARD_TEXT(card, 4, "defadpcb");
1022
1023 cmd = (struct qeth_ipa_cmd *) data;
1024 if (cmd->hdr.return_code == 0) {
1025 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
1026 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
1027 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
1028 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
1029 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
1030 }
1031 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
1032 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1033 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
1034 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
1035 }
1036 if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
1037 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
1038 card->info.tx_csum_mask =
1039 cmd->data.setassparms.data.flags_32bit;
1040 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
1041 }
1042
1043 return 0;
1044}
1045
1046#ifdef CONFIG_QETH_IPV6
1047static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
1048 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
1049{
1050 int rc;
1051 struct qeth_cmd_buffer *iob;
1052
1053 QETH_CARD_TEXT(card, 4, "simassp6");
1054 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
1055 0, QETH_PROT_IPV6);
1056 if (!iob)
1057 return -ENOMEM;
1058 rc = qeth_send_setassparms(card, iob, 0, 0,
1059 qeth_l3_default_setassparms_cb, NULL);
1060 return rc;
1061}
1062#endif
1063
1064static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
1065{
1066 int rc;
1067
1068 QETH_CARD_TEXT(card, 3, "ipaarp");
1069
1070 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
1071 dev_info(&card->gdev->dev,
1072 "ARP processing not supported on %s!\n",
1073 QETH_CARD_IFNAME(card));
1074 return 0;
1075 }
1076 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
1077 IPA_CMD_ASS_START, 0);
1078 if (rc) {
1079 dev_warn(&card->gdev->dev,
1080 "Starting ARP processing support for %s failed\n",
1081 QETH_CARD_IFNAME(card));
1082 }
1083 return rc;
1084}
1085
1086static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
1087{
1088 int rc;
1089
1090 QETH_CARD_TEXT(card, 3, "ipaipfrg");
1091
1092 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
1093 dev_info(&card->gdev->dev,
1094 "Hardware IP fragmentation not supported on %s\n",
1095 QETH_CARD_IFNAME(card));
1096 return -EOPNOTSUPP;
1097 }
1098
1099 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
1100 IPA_CMD_ASS_START, 0);
1101 if (rc) {
1102 dev_warn(&card->gdev->dev,
1103 "Starting IP fragmentation support for %s failed\n",
1104 QETH_CARD_IFNAME(card));
1105 } else
1106 dev_info(&card->gdev->dev,
1107 "Hardware IP fragmentation enabled \n");
1108 return rc;
1109}
1110
1111static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
1112{
1113 int rc;
1114
1115 QETH_CARD_TEXT(card, 3, "stsrcmac");
1116
1117 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
1118 dev_info(&card->gdev->dev,
1119 "Inbound source MAC-address not supported on %s\n",
1120 QETH_CARD_IFNAME(card));
1121 return -EOPNOTSUPP;
1122 }
1123
1124 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
1125 IPA_CMD_ASS_START, 0);
1126 if (rc)
1127 dev_warn(&card->gdev->dev,
1128 "Starting source MAC-address support for %s failed\n",
1129 QETH_CARD_IFNAME(card));
1130 return rc;
1131}
1132
1133static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1134{
1135 int rc = 0;
1136
1137 QETH_CARD_TEXT(card, 3, "strtvlan");
1138
1139 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
1140 dev_info(&card->gdev->dev,
1141 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
1142 return -EOPNOTSUPP;
1143 }
1144
1145 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
1146 IPA_CMD_ASS_START, 0);
1147 if (rc) {
1148 dev_warn(&card->gdev->dev,
1149 "Starting VLAN support for %s failed\n",
1150 QETH_CARD_IFNAME(card));
1151 } else {
1152 dev_info(&card->gdev->dev, "VLAN enabled\n");
1153 }
1154 return rc;
1155}
1156
1157static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1158{
1159 int rc;
1160
1161 QETH_CARD_TEXT(card, 3, "stmcast");
1162
1163 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
1164 dev_info(&card->gdev->dev,
1165 "Multicast not supported on %s\n",
1166 QETH_CARD_IFNAME(card));
1167 return -EOPNOTSUPP;
1168 }
1169
1170 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
1171 IPA_CMD_ASS_START, 0);
1172 if (rc) {
1173 dev_warn(&card->gdev->dev,
1174 "Starting multicast support for %s failed\n",
1175 QETH_CARD_IFNAME(card));
1176 } else {
1177 dev_info(&card->gdev->dev, "Multicast enabled\n");
1178 card->dev->flags |= IFF_MULTICAST;
1179 }
1180 return rc;
1181}
1182
1183#ifdef CONFIG_QETH_IPV6
1184static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1185{
1186 int rc;
1187
1188 QETH_CARD_TEXT(card, 3, "softipv6");
1189
1190 if (card->info.type == QETH_CARD_TYPE_IQD)
1191 goto out;
1192
1193 rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
1194 if (rc) {
1195 dev_err(&card->gdev->dev,
1196 "Activating IPv6 support for %s failed\n",
1197 QETH_CARD_IFNAME(card));
1198 return rc;
1199 }
1200 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
1201 IPA_CMD_ASS_START, 3);
1202 if (rc) {
1203 dev_err(&card->gdev->dev,
1204 "Activating IPv6 support for %s failed\n",
1205 QETH_CARD_IFNAME(card));
1206 return rc;
1207 }
1208 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1209 IPA_CMD_ASS_START);
1210 if (rc) {
1211 dev_err(&card->gdev->dev,
1212 "Activating IPv6 support for %s failed\n",
1213 QETH_CARD_IFNAME(card));
1214 return rc;
1215 }
1216 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1217 IPA_CMD_ASS_START);
1218 if (rc) {
1219 dev_warn(&card->gdev->dev,
1220 "Enabling the passthrough mode for %s failed\n",
1221 QETH_CARD_IFNAME(card));
1222 return rc;
1223 }
1224out:
1225 dev_info(&card->gdev->dev, "IPV6 enabled\n");
1226 return 0;
1227}
1228#endif
1229
1230static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1231{
1232 int rc = 0;
1233
1234 QETH_CARD_TEXT(card, 3, "strtipv6");
1235
1236 if (!qeth_is_supported(card, IPA_IPV6)) {
1237 dev_info(&card->gdev->dev,
1238 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
1239 return 0;
1240 }
1241#ifdef CONFIG_QETH_IPV6
1242 rc = qeth_l3_softsetup_ipv6(card);
1243#endif
1244 return rc ;
1245}
1246
1247static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1248{
1249 int rc;
1250
1251 QETH_CARD_TEXT(card, 3, "stbrdcst");
1252 card->info.broadcast_capable = 0;
1253 if (!qeth_is_supported(card, IPA_FILTERING)) {
1254 dev_info(&card->gdev->dev,
1255 "Broadcast not supported on %s\n",
1256 QETH_CARD_IFNAME(card));
1257 rc = -EOPNOTSUPP;
1258 goto out;
1259 }
1260 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1261 IPA_CMD_ASS_START, 0);
1262 if (rc) {
1263 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1264 "%s failed\n", QETH_CARD_IFNAME(card));
1265 goto out;
1266 }
1267
1268 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1269 IPA_CMD_ASS_CONFIGURE, 1);
1270 if (rc) {
1271 dev_warn(&card->gdev->dev,
1272 "Setting up broadcast filtering for %s failed\n",
1273 QETH_CARD_IFNAME(card));
1274 goto out;
1275 }
1276 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
1277 dev_info(&card->gdev->dev, "Broadcast enabled\n");
1278 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
1279 IPA_CMD_ASS_ENABLE, 1);
1280 if (rc) {
1281 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1282 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
1283 goto out;
1284 }
1285 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1286out:
1287 if (card->info.broadcast_capable)
1288 card->dev->flags |= IFF_BROADCAST;
1289 else
1290 card->dev->flags &= ~IFF_BROADCAST;
1291 return rc;
1292}
1293
1294static void qeth_l3_start_ipa_checksum(struct qeth_card *card)
1295{
1296 QETH_CARD_TEXT(card, 3, "strtcsum");
1297 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)
1298 && (card->dev->features & NETIF_F_RXCSUM))
1299 qeth_set_rx_csum(card, 1);
1300}
1301
1302static void qeth_l3_start_ipa_tx_checksum(struct qeth_card *card)
1303{
1304 QETH_CARD_TEXT(card, 3, "strttxcs");
1305 qeth_start_ipa_tx_checksum(card);
1306}
1307
1308static int qeth_l3_start_ipa_tso(struct qeth_card *card)
1309{
1310 int rc;
1311
1312 QETH_CARD_TEXT(card, 3, "sttso");
1313
1314 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
1315 dev_info(&card->gdev->dev,
1316 "Outbound TSO not supported on %s\n",
1317 QETH_CARD_IFNAME(card));
1318 rc = -EOPNOTSUPP;
1319 } else {
1320 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
1321 IPA_CMD_ASS_START, 0);
1322 if (rc)
1323 dev_warn(&card->gdev->dev, "Starting outbound TCP "
1324 "segmentation offload for %s failed\n",
1325 QETH_CARD_IFNAME(card));
1326 else
1327 dev_info(&card->gdev->dev,
1328 "Outbound TSO enabled\n");
1329 }
1330 if (rc)
1331 card->dev->features &= ~NETIF_F_TSO;
1332 return rc;
1333}
1334
1335static int qeth_l3_start_ipassists(struct qeth_card *card)
1336{
1337 QETH_CARD_TEXT(card, 3, "strtipas");
1338
1339 if (qeth_set_access_ctrl_online(card, 0))
1340 return -EIO;
1341 qeth_l3_start_ipa_arp_processing(card);
1342 qeth_l3_start_ipa_ip_fragmentation(card);
1343 qeth_l3_start_ipa_source_mac(card);
1344 qeth_l3_start_ipa_vlan(card);
1345 qeth_l3_start_ipa_multicast(card);
1346 qeth_l3_start_ipa_ipv6(card);
1347 qeth_l3_start_ipa_broadcast(card);
1348 qeth_l3_start_ipa_checksum(card);
1349 qeth_l3_start_ipa_tx_checksum(card);
1350 qeth_l3_start_ipa_tso(card);
1351 return 0;
1352}
1353
1354static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1355 struct qeth_reply *reply, unsigned long data)
1356{
1357 struct qeth_ipa_cmd *cmd;
1358
1359 cmd = (struct qeth_ipa_cmd *) data;
1360 if (cmd->hdr.return_code == 0)
1361 memcpy(card->dev->dev_addr,
1362 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1363 else
1364 eth_random_addr(card->dev->dev_addr);
1365
1366 return 0;
1367}
1368
1369static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1370{
1371 int rc = 0;
1372 struct qeth_cmd_buffer *iob;
1373 struct qeth_ipa_cmd *cmd;
1374
1375 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
1376
1377 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1378 QETH_PROT_IPV6);
1379 if (!iob)
1380 return -ENOMEM;
1381 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1382 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1383 card->info.unique_id;
1384
1385 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1386 NULL);
1387 return rc;
1388}
1389
1390static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1391 struct qeth_reply *reply, unsigned long data)
1392{
1393 struct qeth_ipa_cmd *cmd;
1394
1395 cmd = (struct qeth_ipa_cmd *) data;
1396 if (cmd->hdr.return_code == 0)
1397 card->info.unique_id = *((__u16 *)
1398 &cmd->data.create_destroy_addr.unique_id[6]);
1399 else {
1400 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1401 UNIQUE_ID_NOT_BY_CARD;
1402 dev_warn(&card->gdev->dev, "The network adapter failed to "
1403 "generate a unique ID\n");
1404 }
1405 return 0;
1406}
1407
1408static int qeth_l3_get_unique_id(struct qeth_card *card)
1409{
1410 int rc = 0;
1411 struct qeth_cmd_buffer *iob;
1412 struct qeth_ipa_cmd *cmd;
1413
1414 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
1415
1416 if (!qeth_is_supported(card, IPA_IPV6)) {
1417 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1418 UNIQUE_ID_NOT_BY_CARD;
1419 return 0;
1420 }
1421
1422 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1423 QETH_PROT_IPV6);
1424 if (!iob)
1425 return -ENOMEM;
1426 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1427 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1428 card->info.unique_id;
1429
1430 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1431 return rc;
1432}
1433
1434static int
1435qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1436 unsigned long data)
1437{
1438 struct qeth_ipa_cmd *cmd;
1439 __u16 rc;
1440
1441 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1442
1443 cmd = (struct qeth_ipa_cmd *)data;
1444 rc = cmd->hdr.return_code;
1445 if (rc)
1446 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
1447 switch (cmd->data.diagass.action) {
1448 case QETH_DIAGS_CMD_TRACE_QUERY:
1449 break;
1450 case QETH_DIAGS_CMD_TRACE_DISABLE:
1451 switch (rc) {
1452 case 0:
1453 case IPA_RC_INVALID_SUBCMD:
1454 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1455 dev_info(&card->gdev->dev, "The HiperSockets network "
1456 "traffic analyzer is deactivated\n");
1457 break;
1458 default:
1459 break;
1460 }
1461 break;
1462 case QETH_DIAGS_CMD_TRACE_ENABLE:
1463 switch (rc) {
1464 case 0:
1465 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1466 dev_info(&card->gdev->dev, "The HiperSockets network "
1467 "traffic analyzer is activated\n");
1468 break;
1469 case IPA_RC_HARDWARE_AUTH_ERROR:
1470 dev_warn(&card->gdev->dev, "The device is not "
1471 "authorized to run as a HiperSockets network "
1472 "traffic analyzer\n");
1473 break;
1474 case IPA_RC_TRACE_ALREADY_ACTIVE:
1475 dev_warn(&card->gdev->dev, "A HiperSockets "
1476 "network traffic analyzer is already "
1477 "active in the HiperSockets LAN\n");
1478 break;
1479 default:
1480 break;
1481 }
1482 break;
1483 default:
1484 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1485 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1486 }
1487
1488 return 0;
1489}
1490
1491static int
1492qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1493{
1494 struct qeth_cmd_buffer *iob;
1495 struct qeth_ipa_cmd *cmd;
1496
1497 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1498
1499 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1500 if (!iob)
1501 return -ENOMEM;
1502 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1503 cmd->data.diagass.subcmd_len = 16;
1504 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1505 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1506 cmd->data.diagass.action = diags_cmd;
1507 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1508}
1509
1510static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac,
1511 struct net_device *dev)
1512{
1513 ip_eth_mc_map(ipm, mac);
1514}
1515
1516static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
1517{
1518 struct qeth_ipaddr *ipm;
1519 struct ip_mc_list *im4;
1520 char buf[MAX_ADDR_LEN];
1521
1522 QETH_CARD_TEXT(card, 4, "addmc");
1523 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1524 im4 = rcu_dereference(im4->next_rcu)) {
1525 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
1526 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1527 if (!ipm)
1528 continue;
1529 ipm->u.a4.addr = im4->multiaddr;
1530 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1531 ipm->is_multicast = 1;
1532 if (!qeth_l3_add_ip(card, ipm))
1533 kfree(ipm);
1534 }
1535}
1536
1537
1538static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1539{
1540 struct in_device *in_dev;
1541 u16 vid;
1542
1543 QETH_CARD_TEXT(card, 4, "addmcvl");
1544 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1545 return;
1546
1547 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1548 struct net_device *netdev;
1549
1550 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1551 vid);
1552 if (netdev == NULL ||
1553 !(netdev->flags & IFF_UP))
1554 continue;
1555 in_dev = __in_dev_get_rcu(netdev);
1556 if (!in_dev)
1557 continue;
1558 qeth_l3_add_mc(card, in_dev);
1559 }
1560}
1561
1562static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1563{
1564 struct in_device *in4_dev;
1565
1566 QETH_CARD_TEXT(card, 4, "chkmcv4");
1567 rcu_read_lock();
1568 in4_dev = __in_dev_get_rcu(card->dev);
1569 if (in4_dev == NULL)
1570 goto unlock;
1571 qeth_l3_add_mc(card, in4_dev);
1572 qeth_l3_add_vlan_mc(card);
1573unlock:
1574 rcu_read_unlock();
1575}
1576
1577#ifdef CONFIG_QETH_IPV6
1578static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
1579{
1580 struct qeth_ipaddr *ipm;
1581 struct ifmcaddr6 *im6;
1582 char buf[MAX_ADDR_LEN];
1583
1584 QETH_CARD_TEXT(card, 4, "addmc6");
1585 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1586 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
1587 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1588 if (!ipm)
1589 continue;
1590 ipm->is_multicast = 1;
1591 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1592 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1593 sizeof(struct in6_addr));
1594 if (!qeth_l3_add_ip(card, ipm))
1595 kfree(ipm);
1596 }
1597}
1598
1599
1600static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1601{
1602 struct inet6_dev *in_dev;
1603 u16 vid;
1604
1605 QETH_CARD_TEXT(card, 4, "admc6vl");
1606 if (!qeth_is_supported(card, IPA_FULL_VLAN))
1607 return;
1608
1609 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1610 struct net_device *netdev;
1611
1612 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1613 vid);
1614 if (netdev == NULL ||
1615 !(netdev->flags & IFF_UP))
1616 continue;
1617 in_dev = in6_dev_get(netdev);
1618 if (!in_dev)
1619 continue;
1620 read_lock_bh(&in_dev->lock);
1621 qeth_l3_add_mc6(card, in_dev);
1622 read_unlock_bh(&in_dev->lock);
1623 in6_dev_put(in_dev);
1624 }
1625}
1626
1627static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1628{
1629 struct inet6_dev *in6_dev;
1630
1631 QETH_CARD_TEXT(card, 4, "chkmcv6");
1632 if (!qeth_is_supported(card, IPA_IPV6))
1633 return ;
1634 in6_dev = in6_dev_get(card->dev);
1635 if (in6_dev == NULL)
1636 return;
1637 rcu_read_lock();
1638 read_lock_bh(&in6_dev->lock);
1639 qeth_l3_add_mc6(card, in6_dev);
1640 qeth_l3_add_vlan_mc6(card);
1641 read_unlock_bh(&in6_dev->lock);
1642 rcu_read_unlock();
1643 in6_dev_put(in6_dev);
1644}
1645#endif
1646
1647static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1648 unsigned short vid)
1649{
1650 struct in_device *in_dev;
1651 struct in_ifaddr *ifa;
1652 struct qeth_ipaddr *addr;
1653 struct net_device *netdev;
1654
1655 QETH_CARD_TEXT(card, 4, "frvaddr4");
1656
1657 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
1658 if (!netdev)
1659 return;
1660 in_dev = in_dev_get(netdev);
1661 if (!in_dev)
1662 return;
1663 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
1664 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1665 if (addr) {
1666 addr->u.a4.addr = ifa->ifa_address;
1667 addr->u.a4.mask = ifa->ifa_mask;
1668 addr->type = QETH_IP_TYPE_NORMAL;
1669 if (!qeth_l3_delete_ip(card, addr))
1670 kfree(addr);
1671 }
1672 }
1673 in_dev_put(in_dev);
1674}
1675
1676static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1677 unsigned short vid)
1678{
1679#ifdef CONFIG_QETH_IPV6
1680 struct inet6_dev *in6_dev;
1681 struct inet6_ifaddr *ifa;
1682 struct qeth_ipaddr *addr;
1683 struct net_device *netdev;
1684
1685 QETH_CARD_TEXT(card, 4, "frvaddr6");
1686
1687 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
1688 if (!netdev)
1689 return;
1690 in6_dev = in6_dev_get(netdev);
1691 if (!in6_dev)
1692 return;
1693 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
1694 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1695 if (addr) {
1696 memcpy(&addr->u.a6.addr, &ifa->addr,
1697 sizeof(struct in6_addr));
1698 addr->u.a6.pfxlen = ifa->prefix_len;
1699 addr->type = QETH_IP_TYPE_NORMAL;
1700 if (!qeth_l3_delete_ip(card, addr))
1701 kfree(addr);
1702 }
1703 }
1704 in6_dev_put(in6_dev);
1705#endif
1706}
1707
1708static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1709 unsigned short vid)
1710{
1711 rcu_read_lock();
1712 qeth_l3_free_vlan_addresses4(card, vid);
1713 qeth_l3_free_vlan_addresses6(card, vid);
1714 rcu_read_unlock();
1715}
1716
1717static int qeth_l3_vlan_rx_add_vid(struct net_device *dev,
1718 __be16 proto, u16 vid)
1719{
1720 struct qeth_card *card = dev->ml_priv;
1721
1722 set_bit(vid, card->active_vlans);
1723 return 0;
1724}
1725
1726static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
1727 __be16 proto, u16 vid)
1728{
1729 struct qeth_card *card = dev->ml_priv;
1730 unsigned long flags;
1731
1732 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
1733 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
1734 QETH_CARD_TEXT(card, 3, "kidREC");
1735 return 0;
1736 }
1737 spin_lock_irqsave(&card->vlanlock, flags);
1738
1739 qeth_l3_free_vlan_addresses(card, vid);
1740 clear_bit(vid, card->active_vlans);
1741 spin_unlock_irqrestore(&card->vlanlock, flags);
1742 qeth_l3_set_multicast_list(card->dev);
1743 return 0;
1744}
1745
1746static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1747 struct sk_buff *skb, struct qeth_hdr *hdr,
1748 unsigned short *vlan_id)
1749{
1750 __be16 prot;
1751 struct iphdr *ip_hdr;
1752 unsigned char tg_addr[MAX_ADDR_LEN];
1753 int is_vlan = 0;
1754
1755 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1756 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1757 ETH_P_IP);
1758 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1759 case QETH_CAST_MULTICAST:
1760 switch (prot) {
1761#ifdef CONFIG_QETH_IPV6
1762 case __constant_htons(ETH_P_IPV6):
1763 ndisc_mc_map((struct in6_addr *)
1764 skb->data + 24,
1765 tg_addr, card->dev, 0);
1766 break;
1767#endif
1768 case __constant_htons(ETH_P_IP):
1769 ip_hdr = (struct iphdr *)skb->data;
1770 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1771 break;
1772 default:
1773 memcpy(tg_addr, card->dev->broadcast,
1774 card->dev->addr_len);
1775 }
1776 card->stats.multicast++;
1777 skb->pkt_type = PACKET_MULTICAST;
1778 break;
1779 case QETH_CAST_BROADCAST:
1780 memcpy(tg_addr, card->dev->broadcast,
1781 card->dev->addr_len);
1782 card->stats.multicast++;
1783 skb->pkt_type = PACKET_BROADCAST;
1784 break;
1785 case QETH_CAST_UNICAST:
1786 case QETH_CAST_ANYCAST:
1787 case QETH_CAST_NOCAST:
1788 default:
1789 if (card->options.sniffer)
1790 skb->pkt_type = PACKET_OTHERHOST;
1791 else
1792 skb->pkt_type = PACKET_HOST;
1793 memcpy(tg_addr, card->dev->dev_addr,
1794 card->dev->addr_len);
1795 }
1796 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1797 card->dev->header_ops->create(skb, card->dev, prot,
1798 tg_addr, &hdr->hdr.l3.dest_addr[2],
1799 card->dev->addr_len);
1800 else
1801 card->dev->header_ops->create(skb, card->dev, prot,
1802 tg_addr, "FAKELL", card->dev->addr_len);
1803 }
1804
1805 skb->protocol = eth_type_trans(skb, card->dev);
1806
1807 if (hdr->hdr.l3.ext_flags &
1808 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
1809 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
1810 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
1811 is_vlan = 1;
1812 }
1813
1814 if (card->dev->features & NETIF_F_RXCSUM) {
1815 if ((hdr->hdr.l3.ext_flags &
1816 (QETH_HDR_EXT_CSUM_HDR_REQ |
1817 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1818 (QETH_HDR_EXT_CSUM_HDR_REQ |
1819 QETH_HDR_EXT_CSUM_TRANSP_REQ))
1820 skb->ip_summed = CHECKSUM_UNNECESSARY;
1821 else
1822 skb->ip_summed = CHECKSUM_NONE;
1823 } else
1824 skb->ip_summed = CHECKSUM_NONE;
1825 return is_vlan;
1826}
1827
1828static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1829 int budget, int *done)
1830{
1831 int work_done = 0;
1832 struct sk_buff *skb;
1833 struct qeth_hdr *hdr;
1834 __u16 vlan_tag = 0;
1835 int is_vlan;
1836 unsigned int len;
1837 __u16 magic;
1838
1839 *done = 0;
1840 WARN_ON_ONCE(!budget);
1841 while (budget) {
1842 skb = qeth_core_get_next_skb(card,
1843 &card->qdio.in_q->bufs[card->rx.b_index],
1844 &card->rx.b_element, &card->rx.e_offset, &hdr);
1845 if (!skb) {
1846 *done = 1;
1847 break;
1848 }
1849 skb->dev = card->dev;
1850 switch (hdr->hdr.l3.id) {
1851 case QETH_HEADER_TYPE_LAYER3:
1852 magic = *(__u16 *)skb->data;
1853 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
1854 (magic == ETH_P_AF_IUCV)) {
1855 skb->protocol = ETH_P_AF_IUCV;
1856 skb->pkt_type = PACKET_HOST;
1857 skb->mac_header = NET_SKB_PAD;
1858 skb->dev = card->dev;
1859 len = skb->len;
1860 card->dev->header_ops->create(skb, card->dev, 0,
1861 card->dev->dev_addr, "FAKELL",
1862 card->dev->addr_len);
1863 netif_receive_skb(skb);
1864 } else {
1865 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
1866 &vlan_tag);
1867 len = skb->len;
1868 if (is_vlan && !card->options.sniffer)
1869 __vlan_hwaccel_put_tag(skb,
1870 htons(ETH_P_8021Q), vlan_tag);
1871 napi_gro_receive(&card->napi, skb);
1872 }
1873 break;
1874 case QETH_HEADER_TYPE_LAYER2:
1875 skb->pkt_type = PACKET_HOST;
1876 skb->protocol = eth_type_trans(skb, skb->dev);
1877 len = skb->len;
1878 netif_receive_skb(skb);
1879 break;
1880 default:
1881 dev_kfree_skb_any(skb);
1882 QETH_CARD_TEXT(card, 3, "inbunkno");
1883 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
1884 continue;
1885 }
1886 work_done++;
1887 budget--;
1888 card->stats.rx_packets++;
1889 card->stats.rx_bytes += len;
1890 }
1891 return work_done;
1892}
1893
1894static int qeth_l3_poll(struct napi_struct *napi, int budget)
1895{
1896 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
1897 int work_done = 0;
1898 struct qeth_qdio_buffer *buffer;
1899 int done;
1900 int new_budget = budget;
1901
1902 if (card->options.performance_stats) {
1903 card->perf_stats.inbound_cnt++;
1904 card->perf_stats.inbound_start_time = qeth_get_micros();
1905 }
1906
1907 while (1) {
1908 if (!card->rx.b_count) {
1909 card->rx.qdio_err = 0;
1910 card->rx.b_count = qdio_get_next_buffers(
1911 card->data.ccwdev, 0, &card->rx.b_index,
1912 &card->rx.qdio_err);
1913 if (card->rx.b_count <= 0) {
1914 card->rx.b_count = 0;
1915 break;
1916 }
1917 card->rx.b_element =
1918 &card->qdio.in_q->bufs[card->rx.b_index]
1919 .buffer->element[0];
1920 card->rx.e_offset = 0;
1921 }
1922
1923 while (card->rx.b_count) {
1924 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
1925 if (!(card->rx.qdio_err &&
1926 qeth_check_qdio_errors(card, buffer->buffer,
1927 card->rx.qdio_err, "qinerr")))
1928 work_done += qeth_l3_process_inbound_buffer(
1929 card, new_budget, &done);
1930 else
1931 done = 1;
1932
1933 if (done) {
1934 if (card->options.performance_stats)
1935 card->perf_stats.bufs_rec++;
1936 qeth_put_buffer_pool_entry(card,
1937 buffer->pool_entry);
1938 qeth_queue_input_buffer(card, card->rx.b_index);
1939 card->rx.b_count--;
1940 if (card->rx.b_count) {
1941 card->rx.b_index =
1942 (card->rx.b_index + 1) %
1943 QDIO_MAX_BUFFERS_PER_Q;
1944 card->rx.b_element =
1945 &card->qdio.in_q
1946 ->bufs[card->rx.b_index]
1947 .buffer->element[0];
1948 card->rx.e_offset = 0;
1949 }
1950 }
1951
1952 if (work_done >= budget)
1953 goto out;
1954 else
1955 new_budget = budget - work_done;
1956 }
1957 }
1958
1959 napi_complete(napi);
1960 if (qdio_start_irq(card->data.ccwdev, 0))
1961 napi_schedule(&card->napi);
1962out:
1963 if (card->options.performance_stats)
1964 card->perf_stats.inbound_time += qeth_get_micros() -
1965 card->perf_stats.inbound_start_time;
1966 return work_done;
1967}
1968
1969static int qeth_l3_verify_vlan_dev(struct net_device *dev,
1970 struct qeth_card *card)
1971{
1972 int rc = 0;
1973 u16 vid;
1974
1975 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1976 struct net_device *netdev;
1977
1978 rcu_read_lock();
1979 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
1980 vid);
1981 rcu_read_unlock();
1982 if (netdev == dev) {
1983 rc = QETH_VLAN_CARD;
1984 break;
1985 }
1986 }
1987
1988 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
1989 return 0;
1990
1991 return rc;
1992}
1993
1994static int qeth_l3_verify_dev(struct net_device *dev)
1995{
1996 struct qeth_card *card;
1997 unsigned long flags;
1998 int rc = 0;
1999
2000 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
2001 list_for_each_entry(card, &qeth_core_card_list.list, list) {
2002 if (card->dev == dev) {
2003 rc = QETH_REAL_CARD;
2004 break;
2005 }
2006 rc = qeth_l3_verify_vlan_dev(dev, card);
2007 if (rc)
2008 break;
2009 }
2010 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
2011
2012 return rc;
2013}
2014
2015static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
2016{
2017 struct qeth_card *card = NULL;
2018 int rc;
2019
2020 rc = qeth_l3_verify_dev(dev);
2021 if (rc == QETH_REAL_CARD)
2022 card = dev->ml_priv;
2023 else if (rc == QETH_VLAN_CARD)
2024 card = vlan_dev_real_dev(dev)->ml_priv;
2025 if (card && card->options.layer2)
2026 card = NULL;
2027 if (card)
2028 QETH_CARD_TEXT_(card, 4, "%d", rc);
2029 return card ;
2030}
2031
2032static void qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
2033{
2034 QETH_DBF_TEXT(SETUP, 2, "stopcard");
2035 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
2036
2037 qeth_set_allowed_threads(card, 0, 1);
2038 if (card->options.sniffer &&
2039 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
2040 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2041 if (card->read.state == CH_STATE_UP &&
2042 card->write.state == CH_STATE_UP &&
2043 (card->state == CARD_STATE_UP)) {
2044 if (recovery_mode)
2045 qeth_l3_stop(card->dev);
2046 else {
2047 rtnl_lock();
2048 dev_close(card->dev);
2049 rtnl_unlock();
2050 }
2051 card->state = CARD_STATE_SOFTSETUP;
2052 }
2053 if (card->state == CARD_STATE_SOFTSETUP) {
2054 qeth_l3_clear_ip_list(card, 1);
2055 qeth_clear_ipacmd_list(card);
2056 card->state = CARD_STATE_HARDSETUP;
2057 }
2058 if (card->state == CARD_STATE_HARDSETUP) {
2059 qeth_qdio_clear_card(card, 0);
2060 qeth_clear_qdio_buffers(card);
2061 qeth_clear_working_pool_list(card);
2062 card->state = CARD_STATE_DOWN;
2063 }
2064 if (card->state == CARD_STATE_DOWN) {
2065 qeth_clear_cmd_buffers(&card->read);
2066 qeth_clear_cmd_buffers(&card->write);
2067 }
2068}
2069
2070
2071
2072
2073
2074static void
2075qeth_l3_handle_promisc_mode(struct qeth_card *card)
2076{
2077 struct net_device *dev = card->dev;
2078
2079 if (((dev->flags & IFF_PROMISC) &&
2080 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2081 (!(dev->flags & IFF_PROMISC) &&
2082 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2083 return;
2084
2085 if (card->info.guestlan) {
2086 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2087 qeth_setadp_promisc_mode(card);
2088 } else if (card->options.sniffer &&
2089 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2090 if (dev->flags & IFF_PROMISC) {
2091 QETH_CARD_TEXT(card, 3, "+promisc");
2092 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2093 } else {
2094 QETH_CARD_TEXT(card, 3, "-promisc");
2095 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2096 }
2097 }
2098}
2099
2100static void qeth_l3_set_multicast_list(struct net_device *dev)
2101{
2102 struct qeth_card *card = dev->ml_priv;
2103
2104 QETH_CARD_TEXT(card, 3, "setmulti");
2105 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2106 (card->state != CARD_STATE_UP))
2107 return;
2108 if (!card->options.sniffer) {
2109 qeth_l3_delete_mc_addresses(card);
2110 qeth_l3_add_multicast_ipv4(card);
2111#ifdef CONFIG_QETH_IPV6
2112 qeth_l3_add_multicast_ipv6(card);
2113#endif
2114 qeth_l3_set_ip_addr_list(card);
2115 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2116 return;
2117 }
2118 qeth_l3_handle_promisc_mode(card);
2119}
2120
2121static const char *qeth_l3_arp_get_error_cause(int *rc)
2122{
2123 switch (*rc) {
2124 case QETH_IPA_ARP_RC_FAILED:
2125 *rc = -EIO;
2126 return "operation failed";
2127 case QETH_IPA_ARP_RC_NOTSUPP:
2128 *rc = -EOPNOTSUPP;
2129 return "operation not supported";
2130 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2131 *rc = -EINVAL;
2132 return "argument out of range";
2133 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2134 *rc = -EOPNOTSUPP;
2135 return "query operation not supported";
2136 case QETH_IPA_ARP_RC_Q_NO_DATA:
2137 *rc = -ENOENT;
2138 return "no query data available";
2139 default:
2140 return "unknown error";
2141 }
2142}
2143
2144static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2145{
2146 int tmp;
2147 int rc;
2148
2149 QETH_CARD_TEXT(card, 3, "arpstnoe");
2150
2151
2152
2153
2154
2155
2156 if (card->info.guestlan)
2157 return -EOPNOTSUPP;
2158 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2159 return -EOPNOTSUPP;
2160 }
2161 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2162 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2163 no_entries);
2164 if (rc) {
2165 tmp = rc;
2166 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2167 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
2168 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2169 }
2170 return rc;
2171}
2172
2173static __u32 get_arp_entry_size(struct qeth_card *card,
2174 struct qeth_arp_query_data *qdata,
2175 struct qeth_arp_entrytype *type, __u8 strip_entries)
2176{
2177 __u32 rc;
2178 __u8 is_hsi;
2179
2180 is_hsi = qdata->reply_bits == 5;
2181 if (type->ip == QETHARP_IP_ADDR_V4) {
2182 QETH_CARD_TEXT(card, 4, "arpev4");
2183 if (strip_entries) {
2184 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2185 sizeof(struct qeth_arp_qi_entry7_short);
2186 } else {
2187 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2188 sizeof(struct qeth_arp_qi_entry7);
2189 }
2190 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2191 QETH_CARD_TEXT(card, 4, "arpev6");
2192 if (strip_entries) {
2193 rc = is_hsi ?
2194 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2195 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2196 } else {
2197 rc = is_hsi ?
2198 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2199 sizeof(struct qeth_arp_qi_entry7_ipv6);
2200 }
2201 } else {
2202 QETH_CARD_TEXT(card, 4, "arpinv");
2203 rc = 0;
2204 }
2205
2206 return rc;
2207}
2208
2209static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2210{
2211 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2212 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
2213}
2214
2215static int qeth_l3_arp_query_cb(struct qeth_card *card,
2216 struct qeth_reply *reply, unsigned long data)
2217{
2218 struct qeth_ipa_cmd *cmd;
2219 struct qeth_arp_query_data *qdata;
2220 struct qeth_arp_query_info *qinfo;
2221 int i;
2222 int e;
2223 int entrybytes_done;
2224 int stripped_bytes;
2225 __u8 do_strip_entries;
2226
2227 QETH_CARD_TEXT(card, 3, "arpquecb");
2228
2229 qinfo = (struct qeth_arp_query_info *) reply->param;
2230 cmd = (struct qeth_ipa_cmd *) data;
2231 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
2232 if (cmd->hdr.return_code) {
2233 QETH_CARD_TEXT(card, 4, "arpcberr");
2234 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2235 return 0;
2236 }
2237 if (cmd->data.setassparms.hdr.return_code) {
2238 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
2239 QETH_CARD_TEXT(card, 4, "setaperr");
2240 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
2241 return 0;
2242 }
2243 qdata = &cmd->data.setassparms.data.query_arp;
2244 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
2245
2246 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2247 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2248 entrybytes_done = 0;
2249 for (e = 0; e < qdata->no_entries; ++e) {
2250 char *cur_entry;
2251 __u32 esize;
2252 struct qeth_arp_entrytype *etype;
2253
2254 cur_entry = &qdata->data + entrybytes_done;
2255 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2256 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2257 QETH_CARD_TEXT(card, 4, "pmis");
2258 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2259 break;
2260 }
2261 esize = get_arp_entry_size(card, qdata, etype,
2262 do_strip_entries);
2263 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2264 if (!esize)
2265 break;
2266
2267 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2268 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
2269 cmd->hdr.return_code = IPA_RC_ENOMEM;
2270 goto out_error;
2271 }
2272
2273 memcpy(qinfo->udata + qinfo->udata_offset,
2274 &qdata->data + entrybytes_done + stripped_bytes,
2275 esize);
2276 entrybytes_done += esize + stripped_bytes;
2277 qinfo->udata_offset += esize;
2278 ++qinfo->no_entries;
2279 }
2280
2281 if (cmd->data.setassparms.hdr.seq_no <
2282 cmd->data.setassparms.hdr.number_of_replies)
2283 return 1;
2284 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
2285 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2286
2287
2288 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2289 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2290 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
2291 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
2292 return 0;
2293out_error:
2294 i = 0;
2295 memcpy(qinfo->udata, &i, 4);
2296 return 0;
2297}
2298
2299static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2300 struct qeth_cmd_buffer *iob, int len,
2301 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2302 unsigned long),
2303 void *reply_param)
2304{
2305 QETH_CARD_TEXT(card, 4, "sendarp");
2306
2307 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2308 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2309 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2310 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2311 reply_cb, reply_param);
2312}
2313
2314static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2315 enum qeth_prot_versions prot,
2316 struct qeth_arp_query_info *qinfo)
2317{
2318 struct qeth_cmd_buffer *iob;
2319 struct qeth_ipa_cmd *cmd;
2320 int tmp;
2321 int rc;
2322
2323 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2324
2325 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2326 IPA_CMD_ASS_ARP_QUERY_INFO,
2327 sizeof(struct qeth_arp_query_data)
2328 - sizeof(char),
2329 prot);
2330 if (!iob)
2331 return -ENOMEM;
2332 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2333 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2334 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2335 cmd->data.setassparms.data.query_arp.no_entries = 0;
2336 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2337 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2338 qeth_l3_arp_query_cb, (void *)qinfo);
2339 if (rc) {
2340 tmp = rc;
2341 QETH_DBF_MESSAGE(2,
2342 "Error while querying ARP cache on %s: %s "
2343 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2344 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2345 }
2346
2347 return rc;
2348}
2349
2350static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2351{
2352 struct qeth_arp_query_info qinfo = {0, };
2353 int rc;
2354
2355 QETH_CARD_TEXT(card, 3, "arpquery");
2356
2357 if (!qeth_is_supported(card,
2358 IPA_ARP_PROCESSING)) {
2359 QETH_CARD_TEXT(card, 3, "arpqnsup");
2360 rc = -EOPNOTSUPP;
2361 goto out;
2362 }
2363
2364 if (copy_from_user(&qinfo, udata, 6)) {
2365 rc = -EFAULT;
2366 goto out;
2367 }
2368 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
2369 if (!qinfo.udata) {
2370 rc = -ENOMEM;
2371 goto out;
2372 }
2373 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
2374 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
2375 if (rc) {
2376 if (copy_to_user(udata, qinfo.udata, 4))
2377 rc = -EFAULT;
2378 goto free_and_out;
2379 } else {
2380#ifdef CONFIG_QETH_IPV6
2381 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2382
2383 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2384 &qinfo);
2385 }
2386#endif
2387 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2388 QETH_CARD_TEXT(card, 4, "qactf");
2389 rc = -EFAULT;
2390 goto free_and_out;
2391 }
2392 QETH_CARD_TEXT(card, 4, "qacts");
2393 }
2394free_and_out:
2395 kfree(qinfo.udata);
2396out:
2397 return rc;
2398}
2399
2400static int qeth_l3_arp_add_entry(struct qeth_card *card,
2401 struct qeth_arp_cache_entry *entry)
2402{
2403 struct qeth_cmd_buffer *iob;
2404 char buf[16];
2405 int tmp;
2406 int rc;
2407
2408 QETH_CARD_TEXT(card, 3, "arpadent");
2409
2410
2411
2412
2413
2414
2415 if (card->info.guestlan)
2416 return -EOPNOTSUPP;
2417 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2418 return -EOPNOTSUPP;
2419 }
2420
2421 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2422 IPA_CMD_ASS_ARP_ADD_ENTRY,
2423 sizeof(struct qeth_arp_cache_entry),
2424 QETH_PROT_IPV4);
2425 if (!iob)
2426 return -ENOMEM;
2427 rc = qeth_send_setassparms(card, iob,
2428 sizeof(struct qeth_arp_cache_entry),
2429 (unsigned long) entry,
2430 qeth_l3_default_setassparms_cb, NULL);
2431 if (rc) {
2432 tmp = rc;
2433 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2434 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2435 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2436 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2437 }
2438 return rc;
2439}
2440
2441static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2442 struct qeth_arp_cache_entry *entry)
2443{
2444 struct qeth_cmd_buffer *iob;
2445 char buf[16] = {0, };
2446 int tmp;
2447 int rc;
2448
2449 QETH_CARD_TEXT(card, 3, "arprment");
2450
2451
2452
2453
2454
2455
2456 if (card->info.guestlan)
2457 return -EOPNOTSUPP;
2458 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2459 return -EOPNOTSUPP;
2460 }
2461 memcpy(buf, entry, 12);
2462 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2463 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2464 12,
2465 QETH_PROT_IPV4);
2466 if (!iob)
2467 return -ENOMEM;
2468 rc = qeth_send_setassparms(card, iob,
2469 12, (unsigned long)buf,
2470 qeth_l3_default_setassparms_cb, NULL);
2471 if (rc) {
2472 tmp = rc;
2473 memset(buf, 0, 16);
2474 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
2475 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2476 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2477 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2478 }
2479 return rc;
2480}
2481
2482static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2483{
2484 int rc;
2485 int tmp;
2486
2487 QETH_CARD_TEXT(card, 3, "arpflush");
2488
2489
2490
2491
2492
2493
2494 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2495 return -EOPNOTSUPP;
2496 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
2497 return -EOPNOTSUPP;
2498 }
2499 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
2500 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2501 if (rc) {
2502 tmp = rc;
2503 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2504 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2505 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2506 }
2507 return rc;
2508}
2509
2510static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2511{
2512 struct qeth_card *card = dev->ml_priv;
2513 struct qeth_arp_cache_entry arp_entry;
2514 struct mii_ioctl_data *mii_data;
2515 int rc = 0;
2516
2517 if (!card)
2518 return -ENODEV;
2519
2520 if (!qeth_card_hw_is_reachable(card))
2521 return -ENODEV;
2522
2523 switch (cmd) {
2524 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2525 if (!capable(CAP_NET_ADMIN)) {
2526 rc = -EPERM;
2527 break;
2528 }
2529 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2530 break;
2531 case SIOC_QETH_ARP_QUERY_INFO:
2532 if (!capable(CAP_NET_ADMIN)) {
2533 rc = -EPERM;
2534 break;
2535 }
2536 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2537 break;
2538 case SIOC_QETH_ARP_ADD_ENTRY:
2539 if (!capable(CAP_NET_ADMIN)) {
2540 rc = -EPERM;
2541 break;
2542 }
2543 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2544 sizeof(struct qeth_arp_cache_entry)))
2545 rc = -EFAULT;
2546 else
2547 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2548 break;
2549 case SIOC_QETH_ARP_REMOVE_ENTRY:
2550 if (!capable(CAP_NET_ADMIN)) {
2551 rc = -EPERM;
2552 break;
2553 }
2554 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2555 sizeof(struct qeth_arp_cache_entry)))
2556 rc = -EFAULT;
2557 else
2558 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2559 break;
2560 case SIOC_QETH_ARP_FLUSH_CACHE:
2561 if (!capable(CAP_NET_ADMIN)) {
2562 rc = -EPERM;
2563 break;
2564 }
2565 rc = qeth_l3_arp_flush_cache(card);
2566 break;
2567 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2568 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2569 break;
2570 case SIOC_QETH_GET_CARD_TYPE:
2571 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2572 card->info.type == QETH_CARD_TYPE_OSX) &&
2573 !card->info.guestlan)
2574 return 1;
2575 return 0;
2576 break;
2577 case SIOCGMIIPHY:
2578 mii_data = if_mii(rq);
2579 mii_data->phy_id = 0;
2580 break;
2581 case SIOCGMIIREG:
2582 mii_data = if_mii(rq);
2583 if (mii_data->phy_id != 0)
2584 rc = -EINVAL;
2585 else
2586 mii_data->val_out = qeth_mdio_read(dev,
2587 mii_data->phy_id,
2588 mii_data->reg_num);
2589 break;
2590 case SIOC_QETH_QUERY_OAT:
2591 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
2592 break;
2593 default:
2594 rc = -EOPNOTSUPP;
2595 }
2596 if (rc)
2597 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
2598 return rc;
2599}
2600
2601int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2602{
2603 int cast_type = RTN_UNSPEC;
2604 struct neighbour *n = NULL;
2605 struct dst_entry *dst;
2606
2607 rcu_read_lock();
2608 dst = skb_dst(skb);
2609 if (dst)
2610 n = dst_neigh_lookup_skb(dst, skb);
2611 if (n) {
2612 cast_type = n->type;
2613 rcu_read_unlock();
2614 neigh_release(n);
2615 if ((cast_type == RTN_BROADCAST) ||
2616 (cast_type == RTN_MULTICAST) ||
2617 (cast_type == RTN_ANYCAST))
2618 return cast_type;
2619 else
2620 return RTN_UNSPEC;
2621 }
2622 rcu_read_unlock();
2623
2624
2625 if (skb->protocol == ETH_P_IPV6)
2626 return (skb_network_header(skb)[24] == 0xff) ?
2627 RTN_MULTICAST : 0;
2628 else if (skb->protocol == ETH_P_IP)
2629 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2630 RTN_MULTICAST : 0;
2631
2632 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2633 return RTN_BROADCAST;
2634 else {
2635 u16 hdr_mac;
2636
2637 hdr_mac = *((u16 *)skb->data);
2638
2639 switch (card->info.link_type) {
2640 case QETH_LINK_TYPE_HSTR:
2641 case QETH_LINK_TYPE_LANE_TR:
2642 if ((hdr_mac == QETH_TR_MAC_NC) ||
2643 (hdr_mac == QETH_TR_MAC_C))
2644 return RTN_MULTICAST;
2645 break;
2646
2647 default:
2648 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2649 (hdr_mac == QETH_ETH_MAC_V6))
2650 return RTN_MULTICAST;
2651 }
2652 }
2653 return cast_type;
2654}
2655
2656static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
2657 struct qeth_hdr *hdr, struct sk_buff *skb)
2658{
2659 char daddr[16];
2660 struct af_iucv_trans_hdr *iucv_hdr;
2661
2662 skb_pull(skb, 14);
2663 card->dev->header_ops->create(skb, card->dev, 0,
2664 card->dev->dev_addr, card->dev->dev_addr,
2665 card->dev->addr_len);
2666 skb_pull(skb, 14);
2667 iucv_hdr = (struct af_iucv_trans_hdr *)skb->data;
2668 memset(hdr, 0, sizeof(struct qeth_hdr));
2669 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2670 hdr->hdr.l3.ext_flags = 0;
2671 hdr->hdr.l3.length = skb->len;
2672 hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
2673 memset(daddr, 0, sizeof(daddr));
2674 daddr[0] = 0xfe;
2675 daddr[1] = 0x80;
2676 memcpy(&daddr[8], iucv_hdr->destUserID, 8);
2677 memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
2678}
2679
2680static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2681 struct sk_buff *skb, int ipv, int cast_type)
2682{
2683 struct dst_entry *dst;
2684
2685 memset(hdr, 0, sizeof(struct qeth_hdr));
2686 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2687 hdr->hdr.l3.ext_flags = 0;
2688
2689
2690
2691
2692
2693 if (skb_vlan_tag_present(skb)) {
2694 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2695 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2696 else
2697 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
2698 hdr->hdr.l3.vlan_id = skb_vlan_tag_get(skb);
2699 }
2700
2701 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
2702
2703 rcu_read_lock();
2704 dst = skb_dst(skb);
2705 if (ipv == 4) {
2706 struct rtable *rt = (struct rtable *) dst;
2707 __be32 *pkey = &ip_hdr(skb)->daddr;
2708
2709 if (rt->rt_gateway)
2710 pkey = &rt->rt_gateway;
2711
2712
2713 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2714 memset(hdr->hdr.l3.dest_addr, 0, 12);
2715 *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
2716 } else if (ipv == 6) {
2717 struct rt6_info *rt = (struct rt6_info *) dst;
2718 struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
2719
2720 if (!ipv6_addr_any(&rt->rt6i_gateway))
2721 pkey = &rt->rt6i_gateway;
2722
2723
2724 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2725 if (card->info.type == QETH_CARD_TYPE_IQD)
2726 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
2727 memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
2728 } else {
2729 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
2730 skb->dev->broadcast, 6)) {
2731
2732 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2733 QETH_HDR_PASSTHRU;
2734 } else {
2735 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2736 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2737 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2738 }
2739 }
2740 rcu_read_unlock();
2741}
2742
2743static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2744 struct qeth_hdr *hdr, struct sk_buff *skb)
2745{
2746 struct iphdr *iph = ip_hdr(skb);
2747
2748
2749
2750
2751 if (iph->protocol == IPPROTO_UDP)
2752 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
2753 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2754 QETH_HDR_EXT_CSUM_HDR_REQ;
2755 iph->check = 0;
2756 if (card->options.performance_stats)
2757 card->perf_stats.tx_csum++;
2758}
2759
2760static void qeth_tso_fill_header(struct qeth_card *card,
2761 struct qeth_hdr *qhdr, struct sk_buff *skb)
2762{
2763 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2764 struct tcphdr *tcph = tcp_hdr(skb);
2765 struct iphdr *iph = ip_hdr(skb);
2766 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2767
2768
2769 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
2770 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
2771
2772 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2773 hdr->ext.imb_hdr_no = 1;
2774 hdr->ext.hdr_type = 1;
2775 hdr->ext.hdr_version = 1;
2776 hdr->ext.hdr_len = 28;
2777
2778 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2779 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2780 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2781 sizeof(struct qeth_hdr_tso));
2782 tcph->check = 0;
2783 if (skb->protocol == ETH_P_IPV6) {
2784 ip6h->payload_len = 0;
2785 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2786 0, IPPROTO_TCP, 0);
2787 } else {
2788
2789 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2790 0, IPPROTO_TCP, 0);
2791 iph->tot_len = 0;
2792 iph->check = 0;
2793 }
2794}
2795
2796static inline int qeth_l3_tso_elements(struct sk_buff *skb)
2797{
2798 unsigned long tcpd = (unsigned long)tcp_hdr(skb) +
2799 tcp_hdr(skb)->doff * 4;
2800 int tcpd_len = skb_headlen(skb) - (tcpd - (unsigned long)skb->data);
2801 int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd);
2802
2803 elements += qeth_get_elements_for_frags(skb);
2804
2805 return elements;
2806}
2807
2808static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2809{
2810 int rc;
2811 u16 *tag;
2812 struct qeth_hdr *hdr = NULL;
2813 int elements_needed = 0;
2814 int elems;
2815 struct qeth_card *card = dev->ml_priv;
2816 struct sk_buff *new_skb = NULL;
2817 int ipv = qeth_get_ip_version(skb);
2818 int cast_type = qeth_l3_get_cast_type(card, skb);
2819 struct qeth_qdio_out_q *queue =
2820 card->qdio.out_qs[card->qdio.do_prio_queueing
2821 || (cast_type && card->info.is_multicast_different) ?
2822 qeth_get_priority_queue(card, skb, ipv, cast_type) :
2823 card->qdio.default_out_queue];
2824 int tx_bytes = skb->len;
2825 bool large_send;
2826 int data_offset = -1;
2827 int nr_frags;
2828
2829 if (((card->info.type == QETH_CARD_TYPE_IQD) &&
2830 (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
2831 ((card->options.cq == QETH_CQ_ENABLED) &&
2832 (skb->protocol != ETH_P_AF_IUCV)))) ||
2833 card->options.sniffer)
2834 goto tx_drop;
2835
2836 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2837 card->stats.tx_carrier_errors++;
2838 goto tx_drop;
2839 }
2840
2841 if ((cast_type == RTN_BROADCAST) &&
2842 (card->info.broadcast_capable == 0))
2843 goto tx_drop;
2844
2845 if (card->options.performance_stats) {
2846 card->perf_stats.outbound_cnt++;
2847 card->perf_stats.outbound_start_time = qeth_get_micros();
2848 }
2849
2850 large_send = skb_is_gso(skb);
2851
2852 if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) &&
2853 (skb_shinfo(skb)->nr_frags == 0)) {
2854 new_skb = skb;
2855 if (new_skb->protocol == ETH_P_AF_IUCV)
2856 data_offset = 0;
2857 else
2858 data_offset = ETH_HLEN;
2859 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2860 if (!hdr)
2861 goto tx_drop;
2862 elements_needed++;
2863 } else {
2864
2865 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2866 + VLAN_HLEN);
2867 if (!new_skb)
2868 goto tx_drop;
2869 }
2870
2871 if (card->info.type == QETH_CARD_TYPE_IQD) {
2872 if (data_offset < 0)
2873 skb_pull(new_skb, ETH_HLEN);
2874 } else {
2875 if (ipv == 4) {
2876 skb_pull(new_skb, ETH_HLEN);
2877 }
2878
2879 if (ipv != 4 && skb_vlan_tag_present(new_skb)) {
2880 skb_push(new_skb, VLAN_HLEN);
2881 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2882 skb_copy_to_linear_data_offset(new_skb, 4,
2883 new_skb->data + 8, 4);
2884 skb_copy_to_linear_data_offset(new_skb, 8,
2885 new_skb->data + 12, 4);
2886 tag = (u16 *)(new_skb->data + 12);
2887 *tag = __constant_htons(ETH_P_8021Q);
2888 *(tag + 1) = htons(skb_vlan_tag_get(new_skb));
2889 }
2890 }
2891
2892 netif_stop_queue(dev);
2893
2894
2895
2896
2897 if (large_send) {
2898 if (qeth_l3_tso_elements(new_skb) + 1 > 16) {
2899 if (skb_linearize(new_skb))
2900 goto tx_drop;
2901 if (card->options.performance_stats)
2902 card->perf_stats.tx_lin++;
2903 }
2904 }
2905
2906 if (large_send && (cast_type == RTN_UNSPEC)) {
2907 hdr = (struct qeth_hdr *)skb_push(new_skb,
2908 sizeof(struct qeth_hdr_tso));
2909 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
2910 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2911 qeth_tso_fill_header(card, hdr, new_skb);
2912 elements_needed++;
2913 } else {
2914 if (data_offset < 0) {
2915 hdr = (struct qeth_hdr *)skb_push(new_skb,
2916 sizeof(struct qeth_hdr));
2917 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2918 cast_type);
2919 } else {
2920 if (new_skb->protocol == ETH_P_AF_IUCV)
2921 qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
2922 else {
2923 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2924 cast_type);
2925 hdr->hdr.l3.length = new_skb->len - data_offset;
2926 }
2927 }
2928
2929 if (skb->ip_summed == CHECKSUM_PARTIAL)
2930 qeth_l3_hdr_csum(card, hdr, new_skb);
2931 }
2932
2933 elems = qeth_get_elements_no(card, new_skb, elements_needed);
2934 if (!elems) {
2935 if (data_offset >= 0)
2936 kmem_cache_free(qeth_core_header_cache, hdr);
2937 goto tx_drop;
2938 }
2939 elements_needed += elems;
2940 nr_frags = skb_shinfo(new_skb)->nr_frags;
2941
2942 if (card->info.type != QETH_CARD_TYPE_IQD) {
2943 int len;
2944 if (large_send)
2945 len = ((unsigned long)tcp_hdr(new_skb) +
2946 tcp_hdr(new_skb)->doff * 4) -
2947 (unsigned long)new_skb->data;
2948 else
2949 len = sizeof(struct qeth_hdr_layer3);
2950
2951 if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len))
2952 goto tx_drop;
2953 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
2954 elements_needed);
2955 } else
2956 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
2957 elements_needed, data_offset, 0);
2958
2959 if (!rc) {
2960 card->stats.tx_packets++;
2961 card->stats.tx_bytes += tx_bytes;
2962 if (new_skb != skb)
2963 dev_kfree_skb_any(skb);
2964 if (card->options.performance_stats) {
2965 if (large_send) {
2966 card->perf_stats.large_send_bytes += tx_bytes;
2967 card->perf_stats.large_send_cnt++;
2968 }
2969 if (nr_frags) {
2970 card->perf_stats.sg_skbs_sent++;
2971
2972 card->perf_stats.sg_frags_sent += nr_frags + 1;
2973 }
2974 }
2975 rc = NETDEV_TX_OK;
2976 } else {
2977 if (data_offset >= 0)
2978 kmem_cache_free(qeth_core_header_cache, hdr);
2979
2980 if (rc == -EBUSY) {
2981 if (new_skb != skb)
2982 dev_kfree_skb_any(new_skb);
2983 return NETDEV_TX_BUSY;
2984 } else
2985 goto tx_drop;
2986 }
2987
2988 netif_wake_queue(dev);
2989 if (card->options.performance_stats)
2990 card->perf_stats.outbound_time += qeth_get_micros() -
2991 card->perf_stats.outbound_start_time;
2992 return rc;
2993
2994tx_drop:
2995 card->stats.tx_dropped++;
2996 card->stats.tx_errors++;
2997 if ((new_skb != skb) && new_skb)
2998 dev_kfree_skb_any(new_skb);
2999 dev_kfree_skb_any(skb);
3000 netif_wake_queue(dev);
3001 return NETDEV_TX_OK;
3002}
3003
3004static int __qeth_l3_open(struct net_device *dev)
3005{
3006 struct qeth_card *card = dev->ml_priv;
3007 int rc = 0;
3008
3009 QETH_CARD_TEXT(card, 4, "qethopen");
3010 if (card->state == CARD_STATE_UP)
3011 return rc;
3012 if (card->state != CARD_STATE_SOFTSETUP)
3013 return -ENODEV;
3014 card->data.state = CH_STATE_UP;
3015 card->state = CARD_STATE_UP;
3016 netif_start_queue(dev);
3017
3018 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
3019 napi_enable(&card->napi);
3020 napi_schedule(&card->napi);
3021 } else
3022 rc = -EIO;
3023 return rc;
3024}
3025
3026static int qeth_l3_open(struct net_device *dev)
3027{
3028 struct qeth_card *card = dev->ml_priv;
3029
3030 QETH_CARD_TEXT(card, 5, "qethope_");
3031 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
3032 QETH_CARD_TEXT(card, 3, "openREC");
3033 return -ERESTARTSYS;
3034 }
3035 return __qeth_l3_open(dev);
3036}
3037
3038static int qeth_l3_stop(struct net_device *dev)
3039{
3040 struct qeth_card *card = dev->ml_priv;
3041
3042 QETH_CARD_TEXT(card, 4, "qethstop");
3043 netif_tx_disable(dev);
3044 if (card->state == CARD_STATE_UP) {
3045 card->state = CARD_STATE_SOFTSETUP;
3046 napi_disable(&card->napi);
3047 }
3048 return 0;
3049}
3050
3051static netdev_features_t qeth_l3_fix_features(struct net_device *dev,
3052 netdev_features_t features)
3053{
3054 struct qeth_card *card = dev->ml_priv;
3055
3056 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
3057 features &= ~NETIF_F_IP_CSUM;
3058 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
3059 features &= ~NETIF_F_TSO;
3060 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
3061 features &= ~NETIF_F_RXCSUM;
3062 return features;
3063}
3064
3065static int qeth_l3_set_features(struct net_device *dev,
3066 netdev_features_t features)
3067{
3068 struct qeth_card *card = dev->ml_priv;
3069 netdev_features_t changed = dev->features ^ features;
3070
3071 if (!(changed & NETIF_F_RXCSUM))
3072 return 0;
3073
3074 if (card->state == CARD_STATE_DOWN ||
3075 card->state == CARD_STATE_RECOVER)
3076 return 0;
3077
3078 return qeth_set_rx_csum(card, features & NETIF_F_RXCSUM ? 1 : 0);
3079}
3080
3081static const struct ethtool_ops qeth_l3_ethtool_ops = {
3082 .get_link = ethtool_op_get_link,
3083 .get_strings = qeth_core_get_strings,
3084 .get_ethtool_stats = qeth_core_get_ethtool_stats,
3085 .get_sset_count = qeth_core_get_sset_count,
3086 .get_drvinfo = qeth_core_get_drvinfo,
3087 .get_settings = qeth_core_ethtool_get_settings,
3088};
3089
3090
3091
3092
3093
3094
3095
3096
3097static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3098{
3099 n->nud_state = NUD_NOARP;
3100 memcpy(n->ha, "FAKELL", 6);
3101 n->output = n->ops->connected_output;
3102 return 0;
3103}
3104
3105static int
3106qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3107{
3108 if (np->tbl->family == AF_INET)
3109 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3110
3111 return 0;
3112}
3113
3114static const struct net_device_ops qeth_l3_netdev_ops = {
3115 .ndo_open = qeth_l3_open,
3116 .ndo_stop = qeth_l3_stop,
3117 .ndo_get_stats = qeth_get_stats,
3118 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3119 .ndo_validate_addr = eth_validate_addr,
3120 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
3121 .ndo_do_ioctl = qeth_l3_do_ioctl,
3122 .ndo_change_mtu = qeth_change_mtu,
3123 .ndo_fix_features = qeth_l3_fix_features,
3124 .ndo_set_features = qeth_l3_set_features,
3125 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3126 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3127 .ndo_tx_timeout = qeth_tx_timeout,
3128};
3129
3130static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3131 .ndo_open = qeth_l3_open,
3132 .ndo_stop = qeth_l3_stop,
3133 .ndo_get_stats = qeth_get_stats,
3134 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3135 .ndo_validate_addr = eth_validate_addr,
3136 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
3137 .ndo_do_ioctl = qeth_l3_do_ioctl,
3138 .ndo_change_mtu = qeth_change_mtu,
3139 .ndo_fix_features = qeth_l3_fix_features,
3140 .ndo_set_features = qeth_l3_set_features,
3141 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3142 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
3143 .ndo_tx_timeout = qeth_tx_timeout,
3144 .ndo_neigh_setup = qeth_l3_neigh_setup,
3145};
3146
3147static int qeth_l3_setup_netdev(struct qeth_card *card)
3148{
3149 int rc;
3150
3151 if (card->info.type == QETH_CARD_TYPE_OSD ||
3152 card->info.type == QETH_CARD_TYPE_OSX) {
3153 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3154 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
3155 pr_info("qeth_l3: ignoring TR device\n");
3156 return -ENODEV;
3157 } else {
3158 card->dev = alloc_etherdev(0);
3159 if (!card->dev)
3160 return -ENODEV;
3161 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
3162
3163
3164 qeth_l3_get_unique_id(card);
3165 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3166 card->dev->dev_id = card->info.unique_id &
3167 0xffff;
3168 if (!card->info.guestlan) {
3169 card->dev->hw_features = NETIF_F_SG |
3170 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3171 NETIF_F_TSO;
3172 card->dev->features = NETIF_F_RXCSUM;
3173 }
3174 }
3175 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
3176 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
3177 ether_setup);
3178 if (!card->dev)
3179 return -ENODEV;
3180 card->dev->flags |= IFF_NOARP;
3181 card->dev->netdev_ops = &qeth_l3_netdev_ops;
3182 rc = qeth_l3_iqd_read_initial_mac(card);
3183 if (rc)
3184 return rc;
3185 if (card->options.hsuid[0])
3186 memcpy(card->dev->perm_addr, card->options.hsuid, 9);
3187 } else
3188 return -ENODEV;
3189
3190 card->dev->ml_priv = card;
3191 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
3192 card->dev->mtu = card->info.initial_mtu;
3193 card->dev->ethtool_ops = &qeth_l3_ethtool_ops;
3194 card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
3195 NETIF_F_HW_VLAN_CTAG_RX |
3196 NETIF_F_HW_VLAN_CTAG_FILTER;
3197 netif_keep_dst(card->dev);
3198 card->dev->gso_max_size = 15 * PAGE_SIZE;
3199
3200 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
3201 netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
3202 netif_carrier_off(card->dev);
3203 return register_netdev(card->dev);
3204}
3205
3206static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3207{
3208 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3209
3210 qeth_l3_create_device_attributes(&gdev->dev);
3211 card->options.layer2 = 0;
3212 card->info.hwtrap = 0;
3213 return 0;
3214}
3215
3216static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3217{
3218 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3219
3220 qeth_l3_remove_device_attributes(&cgdev->dev);
3221
3222 qeth_set_allowed_threads(card, 0, 1);
3223 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3224
3225 if (cgdev->state == CCWGROUP_ONLINE)
3226 qeth_l3_set_offline(cgdev);
3227
3228 if (card->dev) {
3229 unregister_netdev(card->dev);
3230 card->dev = NULL;
3231 }
3232
3233 qeth_l3_clear_ip_list(card, 0);
3234 qeth_l3_clear_ipato_list(card);
3235 return;
3236}
3237
3238static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3239{
3240 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3241 int rc = 0;
3242 enum qeth_card_states recover_flag;
3243
3244 mutex_lock(&card->discipline_mutex);
3245 mutex_lock(&card->conf_mutex);
3246 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3247 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3248
3249 recover_flag = card->state;
3250 rc = qeth_core_hardsetup_card(card);
3251 if (rc) {
3252 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
3253 rc = -ENODEV;
3254 goto out_remove;
3255 }
3256
3257 if (!card->dev && qeth_l3_setup_netdev(card)) {
3258 rc = -ENODEV;
3259 goto out_remove;
3260 }
3261
3262 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3263 if (card->info.hwtrap &&
3264 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3265 card->info.hwtrap = 0;
3266 } else
3267 card->info.hwtrap = 0;
3268
3269 card->state = CARD_STATE_HARDSETUP;
3270 memset(&card->rx, 0, sizeof(struct qeth_rx));
3271 qeth_print_status_message(card);
3272
3273
3274 QETH_DBF_TEXT(SETUP, 2, "softsetp");
3275
3276 rc = qeth_send_startlan(card);
3277 if (rc) {
3278 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3279 if (rc == 0xe080) {
3280 dev_warn(&card->gdev->dev,
3281 "The LAN is offline\n");
3282 card->lan_online = 0;
3283 goto contin;
3284 }
3285 rc = -ENODEV;
3286 goto out_remove;
3287 } else
3288 card->lan_online = 1;
3289
3290contin:
3291 rc = qeth_l3_setadapter_parms(card);
3292 if (rc)
3293 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
3294 if (!card->options.sniffer) {
3295 rc = qeth_l3_start_ipassists(card);
3296 if (rc) {
3297 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3298 goto out_remove;
3299 }
3300 rc = qeth_l3_setrouting_v4(card);
3301 if (rc)
3302 QETH_DBF_TEXT_(SETUP, 2, "4err%04x", rc);
3303 rc = qeth_l3_setrouting_v6(card);
3304 if (rc)
3305 QETH_DBF_TEXT_(SETUP, 2, "5err%04x", rc);
3306 }
3307 netif_tx_disable(card->dev);
3308
3309 rc = qeth_init_qdio_queues(card);
3310 if (rc) {
3311 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3312 rc = -ENODEV;
3313 goto out_remove;
3314 }
3315 card->state = CARD_STATE_SOFTSETUP;
3316
3317 qeth_set_allowed_threads(card, 0xffffffff, 0);
3318 qeth_l3_set_ip_addr_list(card);
3319 if (card->lan_online)
3320 netif_carrier_on(card->dev);
3321 else
3322 netif_carrier_off(card->dev);
3323 if (recover_flag == CARD_STATE_RECOVER) {
3324 rtnl_lock();
3325 if (recovery_mode)
3326 __qeth_l3_open(card->dev);
3327 else
3328 dev_open(card->dev);
3329 qeth_l3_set_multicast_list(card->dev);
3330 rtnl_unlock();
3331 }
3332 qeth_trace_features(card);
3333
3334 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
3335 mutex_unlock(&card->conf_mutex);
3336 mutex_unlock(&card->discipline_mutex);
3337 return 0;
3338out_remove:
3339 qeth_l3_stop_card(card, 0);
3340 ccw_device_set_offline(CARD_DDEV(card));
3341 ccw_device_set_offline(CARD_WDEV(card));
3342 ccw_device_set_offline(CARD_RDEV(card));
3343 qdio_free(CARD_DDEV(card));
3344 if (recover_flag == CARD_STATE_RECOVER)
3345 card->state = CARD_STATE_RECOVER;
3346 else
3347 card->state = CARD_STATE_DOWN;
3348 mutex_unlock(&card->conf_mutex);
3349 mutex_unlock(&card->discipline_mutex);
3350 return rc;
3351}
3352
3353static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3354{
3355 return __qeth_l3_set_online(gdev, 0);
3356}
3357
3358static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3359 int recovery_mode)
3360{
3361 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3362 int rc = 0, rc2 = 0, rc3 = 0;
3363 enum qeth_card_states recover_flag;
3364
3365 mutex_lock(&card->discipline_mutex);
3366 mutex_lock(&card->conf_mutex);
3367 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3368 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
3369
3370 if (card->dev && netif_carrier_ok(card->dev))
3371 netif_carrier_off(card->dev);
3372 recover_flag = card->state;
3373 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3374 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3375 card->info.hwtrap = 1;
3376 }
3377 qeth_l3_stop_card(card, recovery_mode);
3378 if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
3379 rtnl_lock();
3380 call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
3381 rtnl_unlock();
3382 }
3383 rc = ccw_device_set_offline(CARD_DDEV(card));
3384 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3385 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3386 if (!rc)
3387 rc = (rc2) ? rc2 : rc3;
3388 if (rc)
3389 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3390 qdio_free(CARD_DDEV(card));
3391 if (recover_flag == CARD_STATE_UP)
3392 card->state = CARD_STATE_RECOVER;
3393
3394 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
3395 mutex_unlock(&card->conf_mutex);
3396 mutex_unlock(&card->discipline_mutex);
3397 return 0;
3398}
3399
3400static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3401{
3402 return __qeth_l3_set_offline(cgdev, 0);
3403}
3404
3405static int qeth_l3_recover(void *ptr)
3406{
3407 struct qeth_card *card;
3408 int rc = 0;
3409
3410 card = (struct qeth_card *) ptr;
3411 QETH_CARD_TEXT(card, 2, "recover1");
3412 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
3413 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3414 return 0;
3415 QETH_CARD_TEXT(card, 2, "recover2");
3416 dev_warn(&card->gdev->dev,
3417 "A recovery process has been started for the device\n");
3418 qeth_set_recovery_task(card);
3419 __qeth_l3_set_offline(card->gdev, 1);
3420 rc = __qeth_l3_set_online(card->gdev, 1);
3421 if (!rc)
3422 dev_info(&card->gdev->dev,
3423 "Device successfully recovered!\n");
3424 else {
3425 qeth_close_dev(card);
3426 dev_warn(&card->gdev->dev, "The qeth device driver "
3427 "failed to recover an error on the device\n");
3428 }
3429 qeth_clear_recovery_task(card);
3430 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3431 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
3432 return 0;
3433}
3434
3435static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3436{
3437 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3438 qeth_set_allowed_threads(card, 0, 1);
3439 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
3440 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3441 qeth_qdio_clear_card(card, 0);
3442 qeth_clear_qdio_buffers(card);
3443 qdio_free(CARD_DDEV(card));
3444}
3445
3446static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3447{
3448 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3449
3450 if (card->dev)
3451 netif_device_detach(card->dev);
3452 qeth_set_allowed_threads(card, 0, 1);
3453 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3454 if (gdev->state == CCWGROUP_OFFLINE)
3455 return 0;
3456 if (card->state == CARD_STATE_UP) {
3457 if (card->info.hwtrap)
3458 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3459 __qeth_l3_set_offline(card->gdev, 1);
3460 } else
3461 __qeth_l3_set_offline(card->gdev, 0);
3462 return 0;
3463}
3464
3465static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3466{
3467 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3468 int rc = 0;
3469
3470 if (gdev->state == CCWGROUP_OFFLINE)
3471 goto out;
3472
3473 if (card->state == CARD_STATE_RECOVER) {
3474 rc = __qeth_l3_set_online(card->gdev, 1);
3475 if (rc) {
3476 rtnl_lock();
3477 dev_close(card->dev);
3478 rtnl_unlock();
3479 }
3480 } else
3481 rc = __qeth_l3_set_online(card->gdev, 0);
3482out:
3483 qeth_set_allowed_threads(card, 0xffffffff, 0);
3484 if (card->dev)
3485 netif_device_attach(card->dev);
3486 if (rc)
3487 dev_warn(&card->gdev->dev, "The qeth device driver "
3488 "failed to recover an error on the device\n");
3489 return rc;
3490}
3491
3492
3493static int qeth_l3_control_event(struct qeth_card *card,
3494 struct qeth_ipa_cmd *cmd)
3495{
3496 return 1;
3497}
3498
3499struct qeth_discipline qeth_l3_discipline = {
3500 .start_poll = qeth_qdio_start_poll,
3501 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
3502 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
3503 .recover = qeth_l3_recover,
3504 .setup = qeth_l3_probe_device,
3505 .remove = qeth_l3_remove_device,
3506 .set_online = qeth_l3_set_online,
3507 .set_offline = qeth_l3_set_offline,
3508 .shutdown = qeth_l3_shutdown,
3509 .freeze = qeth_l3_pm_suspend,
3510 .thaw = qeth_l3_pm_resume,
3511 .restore = qeth_l3_pm_resume,
3512 .control_event_handler = qeth_l3_control_event,
3513};
3514EXPORT_SYMBOL_GPL(qeth_l3_discipline);
3515
3516static int qeth_l3_ip_event(struct notifier_block *this,
3517 unsigned long event, void *ptr)
3518{
3519 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3520 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3521 struct qeth_ipaddr *addr;
3522 struct qeth_card *card;
3523
3524 if (dev_net(dev) != &init_net)
3525 return NOTIFY_DONE;
3526
3527 card = qeth_l3_get_card_from_dev(dev);
3528 if (!card)
3529 return NOTIFY_DONE;
3530 QETH_CARD_TEXT(card, 3, "ipevent");
3531
3532 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
3533 if (addr != NULL) {
3534 addr->u.a4.addr = ifa->ifa_address;
3535 addr->u.a4.mask = ifa->ifa_mask;
3536 addr->type = QETH_IP_TYPE_NORMAL;
3537 } else
3538 goto out;
3539
3540 switch (event) {
3541 case NETDEV_UP:
3542 if (!qeth_l3_add_ip(card, addr))
3543 kfree(addr);
3544 break;
3545 case NETDEV_DOWN:
3546 if (!qeth_l3_delete_ip(card, addr))
3547 kfree(addr);
3548 break;
3549 default:
3550 break;
3551 }
3552 qeth_l3_set_ip_addr_list(card);
3553out:
3554 return NOTIFY_DONE;
3555}
3556
3557static struct notifier_block qeth_l3_ip_notifier = {
3558 qeth_l3_ip_event,
3559 NULL,
3560};
3561
3562#ifdef CONFIG_QETH_IPV6
3563
3564
3565
3566static int qeth_l3_ip6_event(struct notifier_block *this,
3567 unsigned long event, void *ptr)
3568{
3569 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3570 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3571 struct qeth_ipaddr *addr;
3572 struct qeth_card *card;
3573
3574 card = qeth_l3_get_card_from_dev(dev);
3575 if (!card)
3576 return NOTIFY_DONE;
3577 QETH_CARD_TEXT(card, 3, "ip6event");
3578 if (!qeth_is_supported(card, IPA_IPV6))
3579 return NOTIFY_DONE;
3580
3581 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
3582 if (addr != NULL) {
3583 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3584 addr->u.a6.pfxlen = ifa->prefix_len;
3585 addr->type = QETH_IP_TYPE_NORMAL;
3586 } else
3587 goto out;
3588
3589 switch (event) {
3590 case NETDEV_UP:
3591 if (!qeth_l3_add_ip(card, addr))
3592 kfree(addr);
3593 break;
3594 case NETDEV_DOWN:
3595 if (!qeth_l3_delete_ip(card, addr))
3596 kfree(addr);
3597 break;
3598 default:
3599 break;
3600 }
3601 qeth_l3_set_ip_addr_list(card);
3602out:
3603 return NOTIFY_DONE;
3604}
3605
3606static struct notifier_block qeth_l3_ip6_notifier = {
3607 qeth_l3_ip6_event,
3608 NULL,
3609};
3610#endif
3611
3612static int qeth_l3_register_notifiers(void)
3613{
3614 int rc;
3615
3616 QETH_DBF_TEXT(SETUP, 5, "regnotif");
3617 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3618 if (rc)
3619 return rc;
3620#ifdef CONFIG_QETH_IPV6
3621 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3622 if (rc) {
3623 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3624 return rc;
3625 }
3626#else
3627 pr_warn("There is no IPv6 support for the layer 3 discipline\n");
3628#endif
3629 return 0;
3630}
3631
3632static void qeth_l3_unregister_notifiers(void)
3633{
3634
3635 QETH_DBF_TEXT(SETUP, 5, "unregnot");
3636 WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
3637#ifdef CONFIG_QETH_IPV6
3638 WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
3639#endif
3640}
3641
3642static int __init qeth_l3_init(void)
3643{
3644 int rc = 0;
3645
3646 pr_info("register layer 3 discipline\n");
3647 rc = qeth_l3_register_notifiers();
3648 return rc;
3649}
3650
3651static void __exit qeth_l3_exit(void)
3652{
3653 qeth_l3_unregister_notifiers();
3654 pr_info("unregister layer 3 discipline\n");
3655}
3656
3657module_init(qeth_l3_init);
3658module_exit(qeth_l3_exit);
3659MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3660MODULE_DESCRIPTION("qeth layer 3 discipline");
3661MODULE_LICENSE("GPL");
3662
