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qeth layer 2 and layer 3 common feature handling
[mirror_ubuntu-bionic-kernel.git] / drivers / s390 / net / qeth_l3_main.c
CommitLineData
4a71df50 1/*
bbcfcdc8 2 * Copyright IBM Corp. 2007, 2009
4a71df50
FB		 3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
7 */
8
74eacdb9
FB		 9#define KMSG_COMPONENT "qeth"
10#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
11
4a71df50
FB		 12#include <linux/module.h>
13#include <linux/moduleparam.h>
7ff0bcf6 14#include <linux/bitops.h>
4a71df50
FB		 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>
64ef8957 21#include <linux/ipv6.h>
4a71df50
FB		 22#include <linux/inetdevice.h>
23#include <linux/igmp.h>
5a0e3ad6 24#include <linux/slab.h>
7ff0bcf6 25#include <linux/if_vlan.h>
4a71df50
FB		 26
27#include <net/ip.h>
28#include <net/arp.h>
87e7597b
DM		 29#include <net/route.h>
30#include <net/ip6_fib.h>
64ef8957 31#include <net/ip6_checksum.h>
b3332930 32#include <net/iucv/af_iucv.h>
5f78e29c 33#include <linux/hashtable.h>
4a71df50 34
4a71df50 35#include "qeth_l3.h"
4a71df50 36
d0ddf30f 37
4a71df50
FB		 38static int qeth_l3_set_offline(struct ccwgroup_device *);
39static int qeth_l3_recover(void *);
40static int qeth_l3_stop(struct net_device *);
41static void qeth_l3_set_multicast_list(struct net_device *);
42static int qeth_l3_neigh_setup(struct net_device *, struct neigh_parms *);
43static int qeth_l3_register_addr_entry(struct qeth_card *,
44 struct qeth_ipaddr *);
45static int qeth_l3_deregister_addr_entry(struct qeth_card *,
46 struct qeth_ipaddr *);
47static int __qeth_l3_set_online(struct ccwgroup_device *, int);
48static int __qeth_l3_set_offline(struct ccwgroup_device *, int);
49
4a71df50
FB		 50static int qeth_l3_isxdigit(char *buf)
51{
52 while (*buf) {
53 if (!isxdigit(*buf++))
54 return 0;
55 }
56 return 1;
57}
58
56530d68 59static void qeth_l3_ipaddr4_to_string(const __u8 *addr, char *buf)
4a71df50 60{
5f78e29c 61 sprintf(buf, "%pI4", addr);
4a71df50
FB		 62}
63
56530d68 64static int qeth_l3_string_to_ipaddr4(const char *buf, __u8 *addr)
4a71df50
FB		 65{
66 int count = 0, rc = 0;
a68be015 67 unsigned int in[4];
4a71df50
FB		 68 char c;
69
70 rc = sscanf(buf, "%u.%u.%u.%u%c",
71 &in[0], &in[1], &in[2], &in[3], &c);
72 if (rc != 4 && (rc != 5 || c != '\n'))
73 return -EINVAL;
74 for (count = 0; count < 4; count++) {
75 if (in[count] > 255)
76 return -EINVAL;
77 addr[count] = in[count];
78 }
79 return 0;
80}
81
56530d68 82static void qeth_l3_ipaddr6_to_string(const __u8 *addr, char *buf)
4a71df50 83{
963a9fd2 84 sprintf(buf, "%pI6", addr);
4a71df50
FB		 85}
86
56530d68 87static int qeth_l3_string_to_ipaddr6(const char *buf, __u8 *addr)
4a71df50
FB		 88{
89 const char *end, *end_tmp, *start;
90 __u16 *in;
91 char num[5];
92 int num2, cnt, out, found, save_cnt;
93 unsigned short in_tmp[8] = {0, };
94
95 cnt = out = found = save_cnt = num2 = 0;
96 end = start = buf;
97 in = (__u16 *) addr;
98 memset(in, 0, 16);
99 while (*end) {
100 end = strchr(start, ':');
101 if (end == NULL) {
102 end = buf + strlen(buf);
103 end_tmp = strchr(start, '\n');
104 if (end_tmp != NULL)
105 end = end_tmp;
106 out = 1;
107 }
108 if ((end - start)) {
109 memset(num, 0, 5);
110 if ((end - start) > 4)
111 return -EINVAL;
112 memcpy(num, start, end - start);
113 if (!qeth_l3_isxdigit(num))
114 return -EINVAL;
115 sscanf(start, "%x", &num2);
116 if (found)
117 in_tmp[save_cnt++] = num2;
118 else
119 in[cnt++] = num2;
120 if (out)
121 break;
122 } else {
123 if (found)
124 return -EINVAL;
125 found = 1;
126 }
127 start = ++end;
128 }
129 if (cnt + save_cnt > 8)
130 return -EINVAL;
131 cnt = 7;
132 while (save_cnt)
133 in[cnt--] = in_tmp[--save_cnt];
134 return 0;
135}
136
137void qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
138 char *buf)
139{
140 if (proto == QETH_PROT_IPV4)
141 qeth_l3_ipaddr4_to_string(addr, buf);
142 else if (proto == QETH_PROT_IPV6)
143 qeth_l3_ipaddr6_to_string(addr, buf);
144}
145
146int qeth_l3_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
147 __u8 *addr)
148{
149 if (proto == QETH_PROT_IPV4)
150 return qeth_l3_string_to_ipaddr4(buf, addr);
151 else if (proto == QETH_PROT_IPV6)
152 return qeth_l3_string_to_ipaddr6(buf, addr);
153 else
154 return -EINVAL;
155}
156
157static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
158{
159 int i, j;
160 u8 octet;
161
162 for (i = 0; i < len; ++i) {
163 octet = addr[i];
164 for (j = 7; j >= 0; --j) {
165 bits[i*8 + j] = octet & 1;
166 octet >>= 1;
167 }
168 }
169}
170
6298263a 171int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
4a71df50
FB		 172 struct qeth_ipaddr *addr)
173{
174 struct qeth_ipato_entry *ipatoe;
175 u8 addr_bits[128] = {0, };
176 u8 ipatoe_bits[128] = {0, };
177 int rc = 0;
178
179 if (!card->ipato.enabled)
180 return 0;
181
182 qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
183 (addr->proto == QETH_PROT_IPV4)? 4:16);
184 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
185 if (addr->proto != ipatoe->proto)
186 continue;
187 qeth_l3_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
188 (ipatoe->proto == QETH_PROT_IPV4) ?
189 4 : 16);
190 if (addr->proto == QETH_PROT_IPV4)
191 rc = !memcmp(addr_bits, ipatoe_bits,
192 min(32, ipatoe->mask_bits));
193 else
194 rc = !memcmp(addr_bits, ipatoe_bits,
195 min(128, ipatoe->mask_bits));
196 if (rc)
197 break;
198 }
199 /* invert? */
200 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
201 rc = !rc;
202 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
203 rc = !rc;
204
205 return rc;
206}
207
5f78e29c
LD		 208inline int
209qeth_l3_ipaddrs_is_equal(struct qeth_ipaddr *addr1, struct qeth_ipaddr *addr2)
4a71df50 210{
5f78e29c
LD		 211 return addr1->proto == addr2->proto &&
212 !memcmp(&addr1->u, &addr2->u, sizeof(addr1->u)) &&
213 !memcmp(&addr1->mac, &addr2->mac, sizeof(addr1->mac));
214}
4a71df50 215
5f78e29c
LD		 216static struct qeth_ipaddr *
217qeth_l3_ip_from_hash(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
218{
219 struct qeth_ipaddr *addr;
220
221 if (tmp_addr->is_multicast) {
222 hash_for_each_possible(card->ip_mc_htable, addr,
223 hnode, qeth_l3_ipaddr_hash(tmp_addr))
224 if (qeth_l3_ipaddrs_is_equal(tmp_addr, addr))
225 return addr;
4a71df50 226 } else {
5f78e29c
LD		 227 hash_for_each_possible(card->ip_htable, addr,
228 hnode, qeth_l3_ipaddr_hash(tmp_addr))
229 if (qeth_l3_ipaddrs_is_equal(tmp_addr, addr))
230 return addr;
4a71df50 231 }
5f78e29c
LD		 232
233 return NULL;
4a71df50
FB		 234}
235
5f78e29c 236int qeth_l3_delete_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
4a71df50 237{
4a71df50 238 int rc = 0;
5f78e29c 239 struct qeth_ipaddr *addr;
4a71df50 240
847a50fd 241 QETH_CARD_TEXT(card, 4, "delip");
4a71df50 242
5f78e29c
LD		 243 if (tmp_addr->proto == QETH_PROT_IPV4)
244 QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
4a71df50 245 else {
5f78e29c
LD		 246 QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
247 QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
4a71df50 248 }
5f78e29c
LD		 249
250 addr = qeth_l3_ip_from_hash(card, tmp_addr);
251 if (!addr)
252 return -ENOENT;
253
254 addr->ref_counter--;
255 if (addr->type == QETH_IP_TYPE_NORMAL && addr->ref_counter > 0)
256 return rc;
257 if (addr->in_progress)
258 return -EINPROGRESS;
259
260 rc = qeth_l3_deregister_addr_entry(card, addr);
261
262 hash_del(&addr->hnode);
263 kfree(addr);
264
4a71df50
FB		 265 return rc;
266}
267
5f78e29c 268int qeth_l3_add_ip(struct qeth_card *card, struct qeth_ipaddr *tmp_addr)
4a71df50 269{
4a71df50 270 int rc = 0;
5f78e29c 271 struct qeth_ipaddr *addr;
4a71df50 272
847a50fd 273 QETH_CARD_TEXT(card, 4, "addip");
5f78e29c
LD		 274
275 if (tmp_addr->proto == QETH_PROT_IPV4)
276 QETH_CARD_HEX(card, 4, &tmp_addr->u.a4.addr, 4);
4a71df50 277 else {
5f78e29c
LD		 278 QETH_CARD_HEX(card, 4, &tmp_addr->u.a6.addr, 8);
279 QETH_CARD_HEX(card, 4, ((char *)&tmp_addr->u.a6.addr) + 8, 8);
280 }
281
282 addr = qeth_l3_ip_from_hash(card, tmp_addr);
283 if (!addr) {
284 addr = qeth_l3_get_addr_buffer(tmp_addr->proto);
285 if (!addr)
286 return -ENOMEM;
287
288 memcpy(addr, tmp_addr, sizeof(struct qeth_ipaddr));
289 addr->ref_counter = 1;
290
291 if (addr->type == QETH_IP_TYPE_NORMAL &&
292 qeth_l3_is_addr_covered_by_ipato(card, addr)) {
293 QETH_CARD_TEXT(card, 2, "tkovaddr");
294 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
295 }
296 hash_add(card->ip_htable, &addr->hnode,
297 qeth_l3_ipaddr_hash(addr));
298
299 /* qeth_l3_register_addr_entry can go to sleep
300 * if we add a IPV4 addr. It is caused by the reason
301 * that SETIP ipa cmd starts ARP staff for IPV4 addr.
302 * Thus we should unlock spinlock, and make a protection
303 * using in_progress variable to indicate that there is
304 * an hardware operation with this IPV4 address
305 */
306 if (addr->proto == QETH_PROT_IPV4) {
307 addr->in_progress = 1;
308 spin_unlock_bh(&card->ip_lock);
309 rc = qeth_l3_register_addr_entry(card, addr);
310 spin_lock_bh(&card->ip_lock);
311 addr->in_progress = 0;
312 } else
313 rc = qeth_l3_register_addr_entry(card, addr);
314
315 if (!rc || (rc == IPA_RC_DUPLICATE_IP_ADDRESS) ||
316 (rc == IPA_RC_LAN_OFFLINE)) {
317 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
318 if (addr->ref_counter < 1) {
319 qeth_l3_delete_ip(card, addr);
320 kfree(addr);
321 }
322 } else {
323 hash_del(&addr->hnode);
324 kfree(addr);
325 }
326 } else {
327 if (addr->type == QETH_IP_TYPE_NORMAL)
328 addr->ref_counter++;
4a71df50 329 }
5f78e29c 330
4a71df50
FB		 331 return rc;
332}
333
334
b3332930 335struct qeth_ipaddr *qeth_l3_get_addr_buffer(
4a71df50
FB		 336 enum qeth_prot_versions prot)
337{
338 struct qeth_ipaddr *addr;
339
340 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5f78e29c 341 if (!addr)
4a71df50 342 return NULL;
5f78e29c 343
4a71df50 344 addr->type = QETH_IP_TYPE_NORMAL;
5f78e29c 345 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
4a71df50 346 addr->proto = prot;
4a71df50 347
5f78e29c 348 return addr;
4a71df50
FB		 349}
350
5f78e29c 351static void qeth_l3_clear_ip_htable(struct qeth_card *card, int recover)
4a71df50
FB		 352{
353 struct qeth_ipaddr *addr;
5f78e29c
LD		 354 struct hlist_node *tmp;
355 int i;
4a71df50 356
5f78e29c 357 QETH_CARD_TEXT(card, 4, "clearip");
4a71df50 358
5f78e29c 359 if (recover && card->options.sniffer)
76b11f8e 360 return;
f154b79c 361
5f78e29c
LD		 362 spin_lock_bh(&card->ip_lock);
363
364 hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
365 if (!recover) {
366 hash_del(&addr->hnode);
367 kfree(addr);
4a71df50
FB		 368 continue;
369 }
5f78e29c 370 addr->disp_flag = QETH_DISP_ADDR_ADD;
4a71df50 371 }
4a71df50 372
5f78e29c 373 spin_unlock_bh(&card->ip_lock);
4a71df50 374
5f78e29c
LD		 375 spin_lock_bh(&card->mclock);
376
377 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
378 hash_del(&addr->hnode);
4a71df50
FB		 379 kfree(addr);
380 }
381
5f78e29c
LD		 382 spin_unlock_bh(&card->mclock);
383
4a71df50 384
5f78e29c
LD		 385}
386static void qeth_l3_recover_ip(struct qeth_card *card)
4a71df50 387{
5f78e29c
LD		 388 struct qeth_ipaddr *addr;
389 struct hlist_node *tmp;
390 int i;
391 int rc;
4a71df50 392
5f78e29c
LD		 393 QETH_CARD_TEXT(card, 4, "recoverip");
394
395 spin_lock_bh(&card->ip_lock);
396
397 hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
398 if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
399 if (addr->proto == QETH_PROT_IPV4) {
400 addr->in_progress = 1;
401 spin_unlock_bh(&card->ip_lock);
402 rc = qeth_l3_register_addr_entry(card, addr);
403 spin_lock_bh(&card->ip_lock);
404 addr->in_progress = 0;
405 } else
406 rc = qeth_l3_register_addr_entry(card, addr);
407
408 if (!rc) {
409 addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
410 if (addr->ref_counter < 1) {
411 qeth_l3_delete_ip(card, addr);
412 kfree(addr);
413 }
414 } else {
415 hash_del(&addr->hnode);
416 kfree(addr);
417 }
418 }
419 }
4a71df50 420
5f78e29c 421 spin_unlock_bh(&card->ip_lock);
4a71df50 422
4a71df50
FB		 423}
424
425static int qeth_l3_send_setdelmc(struct qeth_card *card,
426 struct qeth_ipaddr *addr, int ipacmd)
427{
428 int rc;
429 struct qeth_cmd_buffer *iob;
430 struct qeth_ipa_cmd *cmd;
431
847a50fd 432 QETH_CARD_TEXT(card, 4, "setdelmc");
4a71df50
FB		 433
434 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
1aec42bc
TR		 435 if (!iob)
436 return -ENOMEM;
4a71df50
FB		 437 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
438 memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN);
439 if (addr->proto == QETH_PROT_IPV6)
440 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
441 sizeof(struct in6_addr));
442 else
443 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr, 4);
444
445 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
446
447 return rc;
448}
449
450static void qeth_l3_fill_netmask(u8 *netmask, unsigned int len)
451{
452 int i, j;
453 for (i = 0; i < 16; i++) {
454 j = (len) - (i * 8);
455 if (j >= 8)
456 netmask[i] = 0xff;
457 else if (j > 0)
458 netmask[i] = (u8)(0xFF00 >> j);
459 else
460 netmask[i] = 0;
461 }
462}
463
464static int qeth_l3_send_setdelip(struct qeth_card *card,
465 struct qeth_ipaddr *addr, int ipacmd, unsigned int flags)
466{
467 int rc;
468 struct qeth_cmd_buffer *iob;
469 struct qeth_ipa_cmd *cmd;
470 __u8 netmask[16];
471
847a50fd
CO		 472 QETH_CARD_TEXT(card, 4, "setdelip");
473 QETH_CARD_TEXT_(card, 4, "flags%02X", flags);
4a71df50
FB		 474
475 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
1aec42bc
TR		 476 if (!iob)
477 return -ENOMEM;
4a71df50
FB		 478 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
479 if (addr->proto == QETH_PROT_IPV6) {
480 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
481 sizeof(struct in6_addr));
482 qeth_l3_fill_netmask(netmask, addr->u.a6.pfxlen);
483 memcpy(cmd->data.setdelip6.mask, netmask,
484 sizeof(struct in6_addr));
485 cmd->data.setdelip6.flags = flags;
486 } else {
487 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
488 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
489 cmd->data.setdelip4.flags = flags;
490 }
491
492 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
493
494 return rc;
495}
496
497static int qeth_l3_send_setrouting(struct qeth_card *card,
498 enum qeth_routing_types type, enum qeth_prot_versions prot)
499{
500 int rc;
501 struct qeth_ipa_cmd *cmd;
502 struct qeth_cmd_buffer *iob;
503
847a50fd 504 QETH_CARD_TEXT(card, 4, "setroutg");
4a71df50 505 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
1aec42bc
TR		 506 if (!iob)
507 return -ENOMEM;
4a71df50
FB		 508 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
509 cmd->data.setrtg.type = (type);
510 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
511
512 return rc;
513}
514
82e2e782 515static int qeth_l3_correct_routing_type(struct qeth_card *card,
4a71df50
FB		 516 enum qeth_routing_types *type, enum qeth_prot_versions prot)
517{
518 if (card->info.type == QETH_CARD_TYPE_IQD) {
519 switch (*type) {
520 case NO_ROUTER:
521 case PRIMARY_CONNECTOR:
522 case SECONDARY_CONNECTOR:
523 case MULTICAST_ROUTER:
82e2e782 524 return 0;
4a71df50
FB		 525 default:
526 goto out_inval;
527 }
528 } else {
529 switch (*type) {
530 case NO_ROUTER:
531 case PRIMARY_ROUTER:
532 case SECONDARY_ROUTER:
82e2e782 533 return 0;
4a71df50
FB		 534 case MULTICAST_ROUTER:
535 if (qeth_is_ipafunc_supported(card, prot,
536 IPA_OSA_MC_ROUTER))
82e2e782 537 return 0;
4a71df50
FB		 538 default:
539 goto out_inval;
540 }
541 }
542out_inval:
4a71df50 543 *type = NO_ROUTER;
82e2e782 544 return -EINVAL;
4a71df50
FB		 545}
546
547int qeth_l3_setrouting_v4(struct qeth_card *card)
548{
549 int rc;
550
847a50fd 551 QETH_CARD_TEXT(card, 3, "setrtg4");
4a71df50 552
82e2e782 553 rc = qeth_l3_correct_routing_type(card, &card->options.route4.type,
4a71df50 554 QETH_PROT_IPV4);
82e2e782
SR		 555 if (rc)
556 return rc;
4a71df50
FB		 557
558 rc = qeth_l3_send_setrouting(card, card->options.route4.type,
559 QETH_PROT_IPV4);
560 if (rc) {
561 card->options.route4.type = NO_ROUTER;
14cc21b6
FB		 562 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
563 " on %s. Type set to 'no router'.\n", rc,
564 QETH_CARD_IFNAME(card));
4a71df50
FB		 565 }
566 return rc;
567}
568
569int qeth_l3_setrouting_v6(struct qeth_card *card)
570{
571 int rc = 0;
572
847a50fd 573 QETH_CARD_TEXT(card, 3, "setrtg6");
4a71df50
FB		 574#ifdef CONFIG_QETH_IPV6
575
576 if (!qeth_is_supported(card, IPA_IPV6))
577 return 0;
82e2e782 578 rc = qeth_l3_correct_routing_type(card, &card->options.route6.type,
4a71df50 579 QETH_PROT_IPV6);
82e2e782
SR		 580 if (rc)
581 return rc;
4a71df50
FB		 582
583 rc = qeth_l3_send_setrouting(card, card->options.route6.type,
584 QETH_PROT_IPV6);
585 if (rc) {
586 card->options.route6.type = NO_ROUTER;
14cc21b6
FB		 587 QETH_DBF_MESSAGE(2, "Error (0x%04x) while setting routing type"
588 " on %s. Type set to 'no router'.\n", rc,
589 QETH_CARD_IFNAME(card));
4a71df50
FB		 590 }
591#endif
592 return rc;
593}
594
595/*
596 * IP address takeover related functions
597 */
598static void qeth_l3_clear_ipato_list(struct qeth_card *card)
599{
4a71df50 600 struct qeth_ipato_entry *ipatoe, *tmp;
4a71df50 601
5f78e29c
LD		 602 spin_lock_bh(&card->ip_lock);
603
4a71df50
FB		 604 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
605 list_del(&ipatoe->entry);
606 kfree(ipatoe);
607 }
5f78e29c
LD		 608
609 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 610}
611
612int qeth_l3_add_ipato_entry(struct qeth_card *card,
613 struct qeth_ipato_entry *new)
614{
615 struct qeth_ipato_entry *ipatoe;
4a71df50
FB		 616 int rc = 0;
617
847a50fd 618 QETH_CARD_TEXT(card, 2, "addipato");
5f78e29c
LD		 619
620 spin_lock_bh(&card->ip_lock);
621
4a71df50
FB		 622 list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
623 if (ipatoe->proto != new->proto)
624 continue;
625 if (!memcmp(ipatoe->addr, new->addr,
626 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
627 (ipatoe->mask_bits == new->mask_bits)) {
4a71df50
FB		 628 rc = -EEXIST;
629 break;
630 }
631 }
5f78e29c 632
4a71df50
FB		 633 if (!rc)
634 list_add_tail(&new->entry, &card->ipato.entries);
635
5f78e29c
LD		 636 spin_unlock_bh(&card->ip_lock);
637
4a71df50
FB		 638 return rc;
639}
640
641void qeth_l3_del_ipato_entry(struct qeth_card *card,
642 enum qeth_prot_versions proto, u8 *addr, int mask_bits)
643{
644 struct qeth_ipato_entry *ipatoe, *tmp;
4a71df50 645
847a50fd 646 QETH_CARD_TEXT(card, 2, "delipato");
5f78e29c
LD		 647
648 spin_lock_bh(&card->ip_lock);
649
4a71df50
FB		 650 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
651 if (ipatoe->proto != proto)
652 continue;
653 if (!memcmp(ipatoe->addr, addr,
654 (proto == QETH_PROT_IPV4)? 4:16) &&
655 (ipatoe->mask_bits == mask_bits)) {
656 list_del(&ipatoe->entry);
657 kfree(ipatoe);
658 }
659 }
5f78e29c
LD		 660
661 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 662}
663
664/*
665 * VIPA related functions
666 */
667int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
668 const u8 *addr)
669{
670 struct qeth_ipaddr *ipaddr;
4a71df50
FB		 671 int rc = 0;
672
673 ipaddr = qeth_l3_get_addr_buffer(proto);
674 if (ipaddr) {
675 if (proto == QETH_PROT_IPV4) {
847a50fd 676 QETH_CARD_TEXT(card, 2, "addvipa4");
4a71df50
FB		 677 memcpy(&ipaddr->u.a4.addr, addr, 4);
678 ipaddr->u.a4.mask = 0;
679 } else if (proto == QETH_PROT_IPV6) {
847a50fd 680 QETH_CARD_TEXT(card, 2, "addvipa6");
4a71df50
FB		 681 memcpy(&ipaddr->u.a6.addr, addr, 16);
682 ipaddr->u.a6.pfxlen = 0;
683 }
684 ipaddr->type = QETH_IP_TYPE_VIPA;
685 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
686 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
687 } else
688 return -ENOMEM;
5f78e29c
LD		 689
690 spin_lock_bh(&card->ip_lock);
691
692 if (!qeth_l3_ip_from_hash(card, ipaddr))
4a71df50 693 rc = -EEXIST;
5f78e29c
LD		 694 else
695 qeth_l3_add_ip(card, ipaddr);
696
697 spin_unlock_bh(&card->ip_lock);
698
699 kfree(ipaddr);
700
4a71df50
FB		 701 return rc;
702}
703
704void qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
705 const u8 *addr)
706{
707 struct qeth_ipaddr *ipaddr;
708
709 ipaddr = qeth_l3_get_addr_buffer(proto);
710 if (ipaddr) {
711 if (proto == QETH_PROT_IPV4) {
847a50fd 712 QETH_CARD_TEXT(card, 2, "delvipa4");
4a71df50
FB		 713 memcpy(&ipaddr->u.a4.addr, addr, 4);
714 ipaddr->u.a4.mask = 0;
715 } else if (proto == QETH_PROT_IPV6) {
847a50fd 716 QETH_CARD_TEXT(card, 2, "delvipa6");
4a71df50
FB		 717 memcpy(&ipaddr->u.a6.addr, addr, 16);
718 ipaddr->u.a6.pfxlen = 0;
719 }
720 ipaddr->type = QETH_IP_TYPE_VIPA;
721 } else
722 return;
5f78e29c
LD		 723
724 spin_lock_bh(&card->ip_lock);
725 qeth_l3_delete_ip(card, ipaddr);
726 spin_unlock_bh(&card->ip_lock);
727
728 kfree(ipaddr);
4a71df50
FB		 729}
730
731/*
732 * proxy ARP related functions
733 */
734int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
735 const u8 *addr)
736{
737 struct qeth_ipaddr *ipaddr;
4a71df50
FB		 738 int rc = 0;
739
740 ipaddr = qeth_l3_get_addr_buffer(proto);
741 if (ipaddr) {
742 if (proto == QETH_PROT_IPV4) {
847a50fd 743 QETH_CARD_TEXT(card, 2, "addrxip4");
4a71df50
FB		 744 memcpy(&ipaddr->u.a4.addr, addr, 4);
745 ipaddr->u.a4.mask = 0;
746 } else if (proto == QETH_PROT_IPV6) {
847a50fd 747 QETH_CARD_TEXT(card, 2, "addrxip6");
4a71df50
FB		 748 memcpy(&ipaddr->u.a6.addr, addr, 16);
749 ipaddr->u.a6.pfxlen = 0;
750 }
5f78e29c 751
4a71df50
FB		 752 ipaddr->type = QETH_IP_TYPE_RXIP;
753 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
754 ipaddr->del_flags = 0;
755 } else
756 return -ENOMEM;
5f78e29c
LD		 757
758 spin_lock_bh(&card->ip_lock);
759
760 if (!qeth_l3_ip_from_hash(card, ipaddr))
4a71df50 761 rc = -EEXIST;
5f78e29c
LD		 762 else
763 qeth_l3_add_ip(card, ipaddr);
764
765 spin_unlock_bh(&card->ip_lock);
766
767 kfree(ipaddr);
768
769 return rc;
4a71df50
FB		 770}
771
772void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
773 const u8 *addr)
774{
775 struct qeth_ipaddr *ipaddr;
776
777 ipaddr = qeth_l3_get_addr_buffer(proto);
778 if (ipaddr) {
779 if (proto == QETH_PROT_IPV4) {
847a50fd 780 QETH_CARD_TEXT(card, 2, "addrxip4");
4a71df50
FB		 781 memcpy(&ipaddr->u.a4.addr, addr, 4);
782 ipaddr->u.a4.mask = 0;
783 } else if (proto == QETH_PROT_IPV6) {
847a50fd 784 QETH_CARD_TEXT(card, 2, "addrxip6");
4a71df50
FB		 785 memcpy(&ipaddr->u.a6.addr, addr, 16);
786 ipaddr->u.a6.pfxlen = 0;
787 }
788 ipaddr->type = QETH_IP_TYPE_RXIP;
789 } else
790 return;
5f78e29c
LD		 791
792 spin_lock_bh(&card->ip_lock);
793 qeth_l3_delete_ip(card, ipaddr);
794 spin_unlock_bh(&card->ip_lock);
795
796 kfree(ipaddr);
4a71df50
FB		 797}
798
799static int qeth_l3_register_addr_entry(struct qeth_card *card,
800 struct qeth_ipaddr *addr)
801{
802 char buf[50];
803 int rc = 0;
804 int cnt = 3;
805
5f78e29c 806
4a71df50 807 if (addr->proto == QETH_PROT_IPV4) {
847a50fd
CO		 808 QETH_CARD_TEXT(card, 2, "setaddr4");
809 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 810 } else if (addr->proto == QETH_PROT_IPV6) {
847a50fd
CO		 811 QETH_CARD_TEXT(card, 2, "setaddr6");
812 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
813 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 814 } else {
847a50fd
CO		 815 QETH_CARD_TEXT(card, 2, "setaddr?");
816 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 817 }
818 do {
819 if (addr->is_multicast)
820 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_SETIPM);
821 else
822 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_SETIP,
823 addr->set_flags);
824 if (rc)
847a50fd 825 QETH_CARD_TEXT(card, 2, "failed");
4a71df50
FB		 826 } while ((--cnt > 0) && rc);
827 if (rc) {
847a50fd 828 QETH_CARD_TEXT(card, 2, "FAILED");
4a71df50 829 qeth_l3_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
74eacdb9
FB		 830 dev_warn(&card->gdev->dev,
831 "Registering IP address %s failed\n", buf);
4a71df50
FB		 832 }
833 return rc;
834}
835
836static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
837 struct qeth_ipaddr *addr)
838{
839 int rc = 0;
840
841 if (addr->proto == QETH_PROT_IPV4) {
847a50fd
CO		 842 QETH_CARD_TEXT(card, 2, "deladdr4");
843 QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
4a71df50 844 } else if (addr->proto == QETH_PROT_IPV6) {
847a50fd
CO		 845 QETH_CARD_TEXT(card, 2, "deladdr6");
846 QETH_CARD_HEX(card, 3, &addr->u.a6.addr, 8);
847 QETH_CARD_HEX(card, 3, ((char *)&addr->u.a6.addr) + 8, 8);
4a71df50 848 } else {
847a50fd
CO		 849 QETH_CARD_TEXT(card, 2, "deladdr?");
850 QETH_CARD_HEX(card, 3, addr, sizeof(struct qeth_ipaddr));
4a71df50
FB		 851 }
852 if (addr->is_multicast)
853 rc = qeth_l3_send_setdelmc(card, addr, IPA_CMD_DELIPM);
854 else
855 rc = qeth_l3_send_setdelip(card, addr, IPA_CMD_DELIP,
856 addr->del_flags);
c4cef07c 857 if (rc)
847a50fd 858 QETH_CARD_TEXT(card, 2, "failed");
4a71df50
FB		 859
860 return rc;
861}
862
863static inline u8 qeth_l3_get_qeth_hdr_flags4(int cast_type)
864{
865 if (cast_type == RTN_MULTICAST)
866 return QETH_CAST_MULTICAST;
867 if (cast_type == RTN_BROADCAST)
868 return QETH_CAST_BROADCAST;
869 return QETH_CAST_UNICAST;
870}
871
872static inline u8 qeth_l3_get_qeth_hdr_flags6(int cast_type)
873{
874 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
875 if (cast_type == RTN_MULTICAST)
876 return ct | QETH_CAST_MULTICAST;
877 if (cast_type == RTN_ANYCAST)
878 return ct | QETH_CAST_ANYCAST;
879 if (cast_type == RTN_BROADCAST)
880 return ct | QETH_CAST_BROADCAST;
881 return ct | QETH_CAST_UNICAST;
882}
883
4a71df50
FB		 884static int qeth_l3_setadapter_parms(struct qeth_card *card)
885{
886 int rc;
887
d11ba0c4 888 QETH_DBF_TEXT(SETUP, 2, "setadprm");
4a71df50
FB		 889
890 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
74eacdb9
FB		 891 dev_info(&card->gdev->dev,
892 "set adapter parameters not supported.\n");
d11ba0c4 893 QETH_DBF_TEXT(SETUP, 2, " notsupp");
4a71df50
FB		 894 return 0;
895 }
896 rc = qeth_query_setadapterparms(card);
897 if (rc) {
74eacdb9 898 QETH_DBF_MESSAGE(2, "%s couldn't set adapter parameters: "
7f6d95e7 899 "0x%x\n", dev_name(&card->gdev->dev), rc);
4a71df50
FB		 900 return rc;
901 }
902 if (qeth_adp_supported(card, IPA_SETADP_ALTER_MAC_ADDRESS)) {
903 rc = qeth_setadpparms_change_macaddr(card);
904 if (rc)
74eacdb9 905 dev_warn(&card->gdev->dev, "Reading the adapter MAC"
6ea2fde1 906 " address failed\n");
4a71df50
FB		 907 }
908
4a71df50
FB		 909 return rc;
910}
911
4a71df50
FB		 912#ifdef CONFIG_QETH_IPV6
913static int qeth_l3_send_simple_setassparms_ipv6(struct qeth_card *card,
914 enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
915{
916 int rc;
917 struct qeth_cmd_buffer *iob;
918
847a50fd 919 QETH_CARD_TEXT(card, 4, "simassp6");
b475e316 920 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
4a71df50 921 0, QETH_PROT_IPV6);
1aec42bc
TR		 922 if (!iob)
923 return -ENOMEM;
4d7def2a 924 rc = qeth_send_setassparms(card, iob, 0, 0,
8f43fb00 925 qeth_setassparms_cb, NULL);
4a71df50
FB		 926 return rc;
927}
928#endif
929
4a71df50
FB		 930static int qeth_l3_start_ipa_arp_processing(struct qeth_card *card)
931{
932 int rc;
933
847a50fd 934 QETH_CARD_TEXT(card, 3, "ipaarp");
4a71df50
FB		 935
936 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
74eacdb9
FB		 937 dev_info(&card->gdev->dev,
938 "ARP processing not supported on %s!\n",
939 QETH_CARD_IFNAME(card));
4a71df50
FB		 940 return 0;
941 }
4d7def2a
TR		 942 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
943 IPA_CMD_ASS_START, 0);
4a71df50 944 if (rc) {
74eacdb9
FB		 945 dev_warn(&card->gdev->dev,
946 "Starting ARP processing support for %s failed\n",
947 QETH_CARD_IFNAME(card));
4a71df50
FB		 948 }
949 return rc;
950}
951
952static int qeth_l3_start_ipa_ip_fragmentation(struct qeth_card *card)
953{
954 int rc;
955
847a50fd 956 QETH_CARD_TEXT(card, 3, "ipaipfrg");
4a71df50
FB		 957
958 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
74eacdb9
FB		 959 dev_info(&card->gdev->dev,
960 "Hardware IP fragmentation not supported on %s\n",
961 QETH_CARD_IFNAME(card));
4a71df50
FB		 962 return -EOPNOTSUPP;
963 }
964
4d7def2a 965 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
4a71df50
FB		 966 IPA_CMD_ASS_START, 0);
967 if (rc) {
74eacdb9
FB		 968 dev_warn(&card->gdev->dev,
969 "Starting IP fragmentation support for %s failed\n",
970 QETH_CARD_IFNAME(card));
4a71df50 971 } else
74eacdb9
FB		 972 dev_info(&card->gdev->dev,
973 "Hardware IP fragmentation enabled \n");
4a71df50
FB		 974 return rc;
975}
976
977static int qeth_l3_start_ipa_source_mac(struct qeth_card *card)
978{
979 int rc;
980
847a50fd 981 QETH_CARD_TEXT(card, 3, "stsrcmac");
4a71df50 982
4a71df50 983 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
74eacdb9 984 dev_info(&card->gdev->dev,
fe94e2e0 985 "Inbound source MAC-address not supported on %s\n",
74eacdb9 986 QETH_CARD_IFNAME(card));
4a71df50
FB		 987 return -EOPNOTSUPP;
988 }
989
4d7def2a 990 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
4a71df50
FB		 991 IPA_CMD_ASS_START, 0);
992 if (rc)
74eacdb9 993 dev_warn(&card->gdev->dev,
fe94e2e0 994 "Starting source MAC-address support for %s failed\n",
74eacdb9 995 QETH_CARD_IFNAME(card));
4a71df50
FB		 996 return rc;
997}
998
999static int qeth_l3_start_ipa_vlan(struct qeth_card *card)
1000{
1001 int rc = 0;
1002
847a50fd 1003 QETH_CARD_TEXT(card, 3, "strtvlan");
4a71df50
FB		 1004
1005 if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
74eacdb9
FB		 1006 dev_info(&card->gdev->dev,
1007 "VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1008 return -EOPNOTSUPP;
1009 }
1010
4d7def2a 1011 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
4a71df50
FB		 1012 IPA_CMD_ASS_START, 0);
1013 if (rc) {
74eacdb9
FB		 1014 dev_warn(&card->gdev->dev,
1015 "Starting VLAN support for %s failed\n",
1016 QETH_CARD_IFNAME(card));
4a71df50 1017 } else {
74eacdb9 1018 dev_info(&card->gdev->dev, "VLAN enabled\n");
4a71df50
FB		 1019 }
1020 return rc;
1021}
1022
1023static int qeth_l3_start_ipa_multicast(struct qeth_card *card)
1024{
1025 int rc;
1026
847a50fd 1027 QETH_CARD_TEXT(card, 3, "stmcast");
4a71df50
FB		 1028
1029 if (!qeth_is_supported(card, IPA_MULTICASTING)) {
74eacdb9
FB		 1030 dev_info(&card->gdev->dev,
1031 "Multicast not supported on %s\n",
1032 QETH_CARD_IFNAME(card));
4a71df50
FB		 1033 return -EOPNOTSUPP;
1034 }
1035
4d7def2a 1036 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
4a71df50
FB		 1037 IPA_CMD_ASS_START, 0);
1038 if (rc) {
74eacdb9
FB		 1039 dev_warn(&card->gdev->dev,
1040 "Starting multicast support for %s failed\n",
1041 QETH_CARD_IFNAME(card));
4a71df50 1042 } else {
74eacdb9 1043 dev_info(&card->gdev->dev, "Multicast enabled\n");
4a71df50
FB		 1044 card->dev->flags |= IFF_MULTICAST;
1045 }
1046 return rc;
1047}
1048
4a71df50
FB		 1049#ifdef CONFIG_QETH_IPV6
1050static int qeth_l3_softsetup_ipv6(struct qeth_card *card)
1051{
1052 int rc;
1053
847a50fd 1054 QETH_CARD_TEXT(card, 3, "softipv6");
4a71df50
FB		 1055
1056 if (card->info.type == QETH_CARD_TYPE_IQD)
1057 goto out;
1058
1da74b1c 1059 rc = qeth_query_ipassists(card, QETH_PROT_IPV6);
4a71df50 1060 if (rc) {
74eacdb9
FB		 1061 dev_err(&card->gdev->dev,
1062 "Activating IPv6 support for %s failed\n",
1063 QETH_CARD_IFNAME(card));
4a71df50
FB		 1064 return rc;
1065 }
4d7def2a 1066 rc = qeth_send_simple_setassparms(card, IPA_IPV6,
4a71df50
FB		 1067 IPA_CMD_ASS_START, 3);
1068 if (rc) {
74eacdb9
FB		 1069 dev_err(&card->gdev->dev,
1070 "Activating IPv6 support for %s failed\n",
1071 QETH_CARD_IFNAME(card));
4a71df50
FB		 1072 return rc;
1073 }
1074 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_IPV6,
1075 IPA_CMD_ASS_START);
1076 if (rc) {
74eacdb9
FB		 1077 dev_err(&card->gdev->dev,
1078 "Activating IPv6 support for %s failed\n",
1079 QETH_CARD_IFNAME(card));
4a71df50
FB		 1080 return rc;
1081 }
1082 rc = qeth_l3_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
1083 IPA_CMD_ASS_START);
1084 if (rc) {
74eacdb9
FB		 1085 dev_warn(&card->gdev->dev,
1086 "Enabling the passthrough mode for %s failed\n",
1087 QETH_CARD_IFNAME(card));
4a71df50
FB		 1088 return rc;
1089 }
1090out:
74eacdb9 1091 dev_info(&card->gdev->dev, "IPV6 enabled\n");
4a71df50
FB		 1092 return 0;
1093}
1094#endif
1095
1096static int qeth_l3_start_ipa_ipv6(struct qeth_card *card)
1097{
1098 int rc = 0;
1099
847a50fd 1100 QETH_CARD_TEXT(card, 3, "strtipv6");
4a71df50
FB		 1101
1102 if (!qeth_is_supported(card, IPA_IPV6)) {
74eacdb9
FB		 1103 dev_info(&card->gdev->dev,
1104 "IPv6 not supported on %s\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1105 return 0;
1106 }
1107#ifdef CONFIG_QETH_IPV6
1108 rc = qeth_l3_softsetup_ipv6(card);
1109#endif
1110 return rc ;
1111}
1112
1113static int qeth_l3_start_ipa_broadcast(struct qeth_card *card)
1114{
1115 int rc;
1116
847a50fd 1117 QETH_CARD_TEXT(card, 3, "stbrdcst");
4a71df50
FB		 1118 card->info.broadcast_capable = 0;
1119 if (!qeth_is_supported(card, IPA_FILTERING)) {
74eacdb9
FB		 1120 dev_info(&card->gdev->dev,
1121 "Broadcast not supported on %s\n",
1122 QETH_CARD_IFNAME(card));
4a71df50
FB		 1123 rc = -EOPNOTSUPP;
1124 goto out;
1125 }
4d7def2a 1126 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
4a71df50
FB		 1127 IPA_CMD_ASS_START, 0);
1128 if (rc) {
74eacdb9
FB		 1129 dev_warn(&card->gdev->dev, "Enabling broadcast filtering for "
1130 "%s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1131 goto out;
1132 }
1133
4d7def2a 1134 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
4a71df50
FB		 1135 IPA_CMD_ASS_CONFIGURE, 1);
1136 if (rc) {
74eacdb9
FB		 1137 dev_warn(&card->gdev->dev,
1138 "Setting up broadcast filtering for %s failed\n",
1139 QETH_CARD_IFNAME(card));
4a71df50
FB		 1140 goto out;
1141 }
1142 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
74eacdb9 1143 dev_info(&card->gdev->dev, "Broadcast enabled\n");
4d7def2a 1144 rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
4a71df50
FB		 1145 IPA_CMD_ASS_ENABLE, 1);
1146 if (rc) {
74eacdb9
FB		 1147 dev_warn(&card->gdev->dev, "Setting up broadcast echo "
1148 "filtering for %s failed\n", QETH_CARD_IFNAME(card));
4a71df50
FB		 1149 goto out;
1150 }
1151 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
1152out:
1153 if (card->info.broadcast_capable)
1154 card->dev->flags |= IFF_BROADCAST;
1155 else
1156 card->dev->flags &= ~IFF_BROADCAST;
1157 return rc;
1158}
1159
4a71df50
FB		 1160static int qeth_l3_start_ipassists(struct qeth_card *card)
1161{
847a50fd 1162 QETH_CARD_TEXT(card, 3, "strtipas");
d64ecc22 1163
0f54761d
SR		 1164 if (qeth_set_access_ctrl_online(card, 0))
1165 return -EIO;
4a71df50
FB		 1166 qeth_l3_start_ipa_arp_processing(card); /* go on*/
1167 qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
1168 qeth_l3_start_ipa_source_mac(card); /* go on*/
1169 qeth_l3_start_ipa_vlan(card); /* go on*/
1170 qeth_l3_start_ipa_multicast(card); /* go on*/
1171 qeth_l3_start_ipa_ipv6(card); /* go on*/
1172 qeth_l3_start_ipa_broadcast(card); /* go on*/
4a71df50
FB		 1173 return 0;
1174}
1175
4a71df50
FB		 1176static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
1177 struct qeth_reply *reply, unsigned long data)
1178{
1179 struct qeth_ipa_cmd *cmd;
1180
1181 cmd = (struct qeth_ipa_cmd *) data;
1182 if (cmd->hdr.return_code == 0)
1183 memcpy(card->dev->dev_addr,
1184 cmd->data.create_destroy_addr.unique_id, ETH_ALEN);
1185 else
1833611d 1186 eth_random_addr(card->dev->dev_addr);
4a71df50
FB		 1187
1188 return 0;
1189}
1190
1191static int qeth_l3_iqd_read_initial_mac(struct qeth_card *card)
1192{
1193 int rc = 0;
1194 struct qeth_cmd_buffer *iob;
1195 struct qeth_ipa_cmd *cmd;
1196
d11ba0c4 1197 QETH_DBF_TEXT(SETUP, 2, "hsrmac");
4a71df50
FB		 1198
1199 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1200 QETH_PROT_IPV6);
1aec42bc
TR		 1201 if (!iob)
1202 return -ENOMEM;
4a71df50
FB		 1203 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1204 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1205 card->info.unique_id;
1206
1207 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_iqd_read_initial_mac_cb,
1208 NULL);
1209 return rc;
1210}
1211
1212static int qeth_l3_get_unique_id_cb(struct qeth_card *card,
1213 struct qeth_reply *reply, unsigned long data)
1214{
1215 struct qeth_ipa_cmd *cmd;
1216
1217 cmd = (struct qeth_ipa_cmd *) data;
1218 if (cmd->hdr.return_code == 0)
1219 card->info.unique_id = *((__u16 *)
1220 &cmd->data.create_destroy_addr.unique_id[6]);
1221 else {
1222 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1223 UNIQUE_ID_NOT_BY_CARD;
74eacdb9
FB		 1224 dev_warn(&card->gdev->dev, "The network adapter failed to "
1225 "generate a unique ID\n");
4a71df50
FB		 1226 }
1227 return 0;
1228}
1229
1230static int qeth_l3_get_unique_id(struct qeth_card *card)
1231{
1232 int rc = 0;
1233 struct qeth_cmd_buffer *iob;
1234 struct qeth_ipa_cmd *cmd;
1235
d11ba0c4 1236 QETH_DBF_TEXT(SETUP, 2, "guniqeid");
4a71df50
FB		 1237
1238 if (!qeth_is_supported(card, IPA_IPV6)) {
1239 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED |
1240 UNIQUE_ID_NOT_BY_CARD;
1241 return 0;
1242 }
1243
1244 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
1245 QETH_PROT_IPV6);
1aec42bc
TR		 1246 if (!iob)
1247 return -ENOMEM;
4a71df50
FB		 1248 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1249 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
1250 card->info.unique_id;
1251
1252 rc = qeth_send_ipa_cmd(card, iob, qeth_l3_get_unique_id_cb, NULL);
1253 return rc;
1254}
1255
76b11f8e
UB		 1256static int
1257qeth_diags_trace_cb(struct qeth_card *card, struct qeth_reply *reply,
1258 unsigned long data)
1259{
1260 struct qeth_ipa_cmd *cmd;
1261 __u16 rc;
1262
1263 QETH_DBF_TEXT(SETUP, 2, "diastrcb");
1264
1265 cmd = (struct qeth_ipa_cmd *)data;
1266 rc = cmd->hdr.return_code;
a959189a 1267 if (rc)
847a50fd 1268 QETH_CARD_TEXT_(card, 2, "dxter%x", rc);
76b11f8e
UB		 1269 switch (cmd->data.diagass.action) {
1270 case QETH_DIAGS_CMD_TRACE_QUERY:
1271 break;
1272 case QETH_DIAGS_CMD_TRACE_DISABLE:
a959189a
UB		 1273 switch (rc) {
1274 case 0:
1275 case IPA_RC_INVALID_SUBCMD:
1276 card->info.promisc_mode = SET_PROMISC_MODE_OFF;
1277 dev_info(&card->gdev->dev, "The HiperSockets network "
1278 "traffic analyzer is deactivated\n");
1279 break;
1280 default:
1281 break;
1282 }
76b11f8e
UB		 1283 break;
1284 case QETH_DIAGS_CMD_TRACE_ENABLE:
a959189a
UB		 1285 switch (rc) {
1286 case 0:
1287 card->info.promisc_mode = SET_PROMISC_MODE_ON;
1288 dev_info(&card->gdev->dev, "The HiperSockets network "
1289 "traffic analyzer is activated\n");
1290 break;
1291 case IPA_RC_HARDWARE_AUTH_ERROR:
1292 dev_warn(&card->gdev->dev, "The device is not "
1293 "authorized to run as a HiperSockets network "
1294 "traffic analyzer\n");
1295 break;
1296 case IPA_RC_TRACE_ALREADY_ACTIVE:
1297 dev_warn(&card->gdev->dev, "A HiperSockets "
1298 "network traffic analyzer is already "
1299 "active in the HiperSockets LAN\n");
1300 break;
1301 default:
1302 break;
1303 }
76b11f8e
UB		 1304 break;
1305 default:
1306 QETH_DBF_MESSAGE(2, "Unknown sniffer action (0x%04x) on %s\n",
1307 cmd->data.diagass.action, QETH_CARD_IFNAME(card));
1308 }
1309
1310 return 0;
1311}
1312
1313static int
1314qeth_diags_trace(struct qeth_card *card, enum qeth_diags_trace_cmds diags_cmd)
1315{
1316 struct qeth_cmd_buffer *iob;
1317 struct qeth_ipa_cmd *cmd;
1318
1319 QETH_DBF_TEXT(SETUP, 2, "diagtrac");
1320
1321 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
1aec42bc
TR		 1322 if (!iob)
1323 return -ENOMEM;
76b11f8e
UB		 1324 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1325 cmd->data.diagass.subcmd_len = 16;
1326 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRACE;
1327 cmd->data.diagass.type = QETH_DIAGS_TYPE_HIPERSOCKET;
1328 cmd->data.diagass.action = diags_cmd;
1329 return qeth_send_ipa_cmd(card, iob, qeth_diags_trace_cb, NULL);
1330}
1331
5f78e29c 1332static void qeth_l3_get_mac_for_ipm(__u32 ipm, char *mac)
4a71df50 1333{
1abd2296 1334 ip_eth_mc_map(ipm, mac);
4a71df50
FB		 1335}
1336
5f78e29c
LD		 1337static void qeth_l3_mark_all_mc_to_be_deleted(struct qeth_card *card)
1338{
1339 struct qeth_ipaddr *addr;
1340 int i;
1341
1342 hash_for_each(card->ip_mc_htable, i, addr, hnode)
1343 addr->disp_flag = QETH_DISP_ADDR_DELETE;
1344
1345}
1346
1347static void qeth_l3_add_all_new_mc(struct qeth_card *card)
1348{
1349 struct qeth_ipaddr *addr;
1350 struct hlist_node *tmp;
1351 int i;
1352 int rc;
1353
1354 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1355 if (addr->disp_flag == QETH_DISP_ADDR_ADD) {
1356 rc = qeth_l3_register_addr_entry(card, addr);
1357 if (!rc || (rc == IPA_RC_LAN_OFFLINE))
1358 addr->ref_counter = 1;
1359 else {
1360 hash_del(&addr->hnode);
1361 kfree(addr);
1362 }
1363 }
1364 }
1365
1366}
1367
1368static void qeth_l3_delete_nonused_mc(struct qeth_card *card)
1369{
1370 struct qeth_ipaddr *addr;
1371 struct hlist_node *tmp;
1372 int i;
1373 int rc;
1374
1375 hash_for_each_safe(card->ip_mc_htable, i, tmp, addr, hnode) {
1376 if (addr->disp_flag == QETH_DISP_ADDR_DELETE) {
1377 rc = qeth_l3_deregister_addr_entry(card, addr);
1378 if (!rc || (rc == IPA_RC_MC_ADDR_NOT_FOUND)) {
1379 hash_del(&addr->hnode);
1380 kfree(addr);
1381 }
1382 }
1383 }
1384
1385}
1386
1387
1388static void
1389qeth_l3_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev)
4a71df50 1390{
4a71df50 1391 struct ip_mc_list *im4;
5f78e29c 1392 struct qeth_ipaddr *tmp, *ipm;
4a71df50
FB		 1393 char buf[MAX_ADDR_LEN];
1394
847a50fd 1395 QETH_CARD_TEXT(card, 4, "addmc");
5f78e29c
LD		 1396
1397 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1398 if (!tmp)
1399 return;
1400
f3aa3136
SS		 1401 for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL;
1402 im4 = rcu_dereference(im4->next_rcu)) {
5f78e29c
LD		 1403 qeth_l3_get_mac_for_ipm(im4->multiaddr, buf);
1404
1405 tmp->u.a4.addr = im4->multiaddr;
1406 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1407
1408 ipm = qeth_l3_ip_from_hash(card, tmp);
1409 if (ipm) {
1410 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1411 } else {
1412 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1413 if (!ipm)
1414 continue;
1415 memcpy(ipm->mac, buf, sizeof(tmp->mac));
1416 ipm->u.a4.addr = im4->multiaddr;
1417 ipm->is_multicast = 1;
1418 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1419 hash_add(card->ip_mc_htable,
1420 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1421 }
4a71df50 1422 }
5f78e29c
LD		 1423
1424 kfree(tmp);
4a71df50
FB		 1425}
1426
0347af51 1427/* called with rcu_read_lock */
4a71df50
FB		 1428static void qeth_l3_add_vlan_mc(struct qeth_card *card)
1429{
1430 struct in_device *in_dev;
7ff0bcf6 1431 u16 vid;
4a71df50 1432
847a50fd 1433 QETH_CARD_TEXT(card, 4, "addmcvl");
5f78e29c 1434
7ff0bcf6 1435 if (!qeth_is_supported(card, IPA_FULL_VLAN))
4a71df50
FB		 1436 return;
1437
7ff0bcf6
JP		 1438 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1439 struct net_device *netdev;
1440
f06c7f9f 1441 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
91b1c1aa 1442 vid);
4a71df50
FB		 1443 if (netdev == NULL ||
1444 !(netdev->flags & IFF_UP))
1445 continue;
0347af51 1446 in_dev = __in_dev_get_rcu(netdev);
4a71df50
FB		 1447 if (!in_dev)
1448 continue;
5f78e29c 1449 qeth_l3_add_mc_to_hash(card, in_dev);
4a71df50
FB		 1450 }
1451}
1452
1453static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
1454{
1455 struct in_device *in4_dev;
1456
847a50fd 1457 QETH_CARD_TEXT(card, 4, "chkmcv4");
5f78e29c 1458
f3aa3136 1459 rcu_read_lock();
0347af51
JP		 1460 in4_dev = __in_dev_get_rcu(card->dev);
1461 if (in4_dev == NULL)
1462 goto unlock;
5f78e29c 1463 qeth_l3_add_mc_to_hash(card, in4_dev);
4a71df50 1464 qeth_l3_add_vlan_mc(card);
0347af51 1465unlock:
f3aa3136 1466 rcu_read_unlock();
4a71df50
FB		 1467}
1468
1469#ifdef CONFIG_QETH_IPV6
5f78e29c
LD		 1470static void
1471qeth_l3_add_mc6_to_hash(struct qeth_card *card, struct inet6_dev *in6_dev)
4a71df50
FB		 1472{
1473 struct qeth_ipaddr *ipm;
1474 struct ifmcaddr6 *im6;
5f78e29c 1475 struct qeth_ipaddr *tmp;
4a71df50
FB		 1476 char buf[MAX_ADDR_LEN];
1477
847a50fd 1478 QETH_CARD_TEXT(card, 4, "addmc6");
5f78e29c
LD		 1479
1480 tmp = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1481 if (!tmp)
1482 return;
1483
4a71df50
FB		 1484 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
1485 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5f78e29c
LD		 1486
1487 memcpy(tmp->mac, buf, sizeof(tmp->mac));
1488 memcpy(&tmp->u.a6.addr, &im6->mca_addr.s6_addr,
1489 sizeof(struct in6_addr));
1490 tmp->is_multicast = 1;
1491
1492 ipm = qeth_l3_ip_from_hash(card, tmp);
1493 if (ipm) {
1494 ipm->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
1495 continue;
1496 }
1497
4a71df50
FB		 1498 ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1499 if (!ipm)
1500 continue;
5f78e29c 1501
4a71df50
FB		 1502 memcpy(ipm->mac, buf, OSA_ADDR_LEN);
1503 memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr,
1504 sizeof(struct in6_addr));
5f78e29c
LD		 1505 ipm->is_multicast = 1;
1506 ipm->disp_flag = QETH_DISP_ADDR_ADD;
1507 hash_add(card->ip_mc_htable,
1508 &ipm->hnode, qeth_l3_ipaddr_hash(ipm));
1509
4a71df50 1510 }
5f78e29c 1511 kfree(tmp);
4a71df50
FB		 1512}
1513
0347af51 1514/* called with rcu_read_lock */
4a71df50
FB		 1515static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
1516{
1517 struct inet6_dev *in_dev;
7ff0bcf6 1518 u16 vid;
4a71df50 1519
847a50fd 1520 QETH_CARD_TEXT(card, 4, "admc6vl");
5f78e29c 1521
7ff0bcf6 1522 if (!qeth_is_supported(card, IPA_FULL_VLAN))
4a71df50
FB		 1523 return;
1524
7ff0bcf6
JP		 1525 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1526 struct net_device *netdev;
1527
f06c7f9f 1528 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
91b1c1aa 1529 vid);
4a71df50
FB		 1530 if (netdev == NULL ||
1531 !(netdev->flags & IFF_UP))
1532 continue;
1533 in_dev = in6_dev_get(netdev);
1534 if (!in_dev)
1535 continue;
1536 read_lock_bh(&in_dev->lock);
5f78e29c 1537 qeth_l3_add_mc6_to_hash(card, in_dev);
4a71df50
FB		 1538 read_unlock_bh(&in_dev->lock);
1539 in6_dev_put(in_dev);
1540 }
1541}
1542
1543static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
1544{
1545 struct inet6_dev *in6_dev;
1546
847a50fd 1547 QETH_CARD_TEXT(card, 4, "chkmcv6");
5f78e29c 1548
4a71df50
FB		 1549 if (!qeth_is_supported(card, IPA_IPV6))
1550 return ;
1551 in6_dev = in6_dev_get(card->dev);
5f78e29c 1552 if (!in6_dev)
4a71df50 1553 return;
5f78e29c 1554
0347af51 1555 rcu_read_lock();
4a71df50 1556 read_lock_bh(&in6_dev->lock);
5f78e29c 1557 qeth_l3_add_mc6_to_hash(card, in6_dev);
4a71df50
FB		 1558 qeth_l3_add_vlan_mc6(card);
1559 read_unlock_bh(&in6_dev->lock);
0347af51 1560 rcu_read_unlock();
4a71df50
FB		 1561 in6_dev_put(in6_dev);
1562}
1563#endif /* CONFIG_QETH_IPV6 */
1564
1565static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
1566 unsigned short vid)
1567{
1568 struct in_device *in_dev;
1569 struct in_ifaddr *ifa;
1570 struct qeth_ipaddr *addr;
7ff0bcf6 1571 struct net_device *netdev;
4a71df50 1572
847a50fd 1573 QETH_CARD_TEXT(card, 4, "frvaddr4");
4a71df50 1574
f06c7f9f 1575 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
eabfbe62 1576 if (!netdev)
1577 return;
7ff0bcf6 1578 in_dev = in_dev_get(netdev);
4a71df50
FB		 1579 if (!in_dev)
1580 return;
5f78e29c
LD		 1581
1582 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
1583 if (!addr)
1584 return;
1585
1586 spin_lock_bh(&card->ip_lock);
1587
4a71df50 1588 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5f78e29c
LD		 1589 addr->u.a4.addr = ifa->ifa_address;
1590 addr->u.a4.mask = ifa->ifa_mask;
1591 addr->type = QETH_IP_TYPE_NORMAL;
1592 qeth_l3_delete_ip(card, addr);
4a71df50 1593 }
5f78e29c
LD		 1594
1595 spin_unlock_bh(&card->ip_lock);
1596
1597 kfree(addr);
4a71df50
FB		 1598 in_dev_put(in_dev);
1599}
1600
1601static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
1602 unsigned short vid)
1603{
1604#ifdef CONFIG_QETH_IPV6
1605 struct inet6_dev *in6_dev;
1606 struct inet6_ifaddr *ifa;
1607 struct qeth_ipaddr *addr;
7ff0bcf6 1608 struct net_device *netdev;
4a71df50 1609
847a50fd 1610 QETH_CARD_TEXT(card, 4, "frvaddr6");
4a71df50 1611
f06c7f9f 1612 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q), vid);
eabfbe62 1613 if (!netdev)
1614 return;
5f78e29c 1615
7ff0bcf6 1616 in6_dev = in6_dev_get(netdev);
4a71df50
FB		 1617 if (!in6_dev)
1618 return;
5f78e29c
LD		 1619
1620 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
1621 if (!addr)
1622 return;
1623
1624 spin_lock_bh(&card->ip_lock);
1625
70f60a22 1626 list_for_each_entry(ifa, &in6_dev->addr_list, if_list) {
5f78e29c
LD		 1627 memcpy(&addr->u.a6.addr, &ifa->addr,
1628 sizeof(struct in6_addr));
1629 addr->u.a6.pfxlen = ifa->prefix_len;
1630 addr->type = QETH_IP_TYPE_NORMAL;
1631 qeth_l3_delete_ip(card, addr);
4a71df50 1632 }
5f78e29c
LD		 1633
1634 spin_unlock_bh(&card->ip_lock);
1635
1636 kfree(addr);
4a71df50
FB		 1637 in6_dev_put(in6_dev);
1638#endif /* CONFIG_QETH_IPV6 */
1639}
1640
1641static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
1642 unsigned short vid)
1643{
0347af51 1644 rcu_read_lock();
4a71df50
FB		 1645 qeth_l3_free_vlan_addresses4(card, vid);
1646 qeth_l3_free_vlan_addresses6(card, vid);
0347af51 1647 rcu_read_unlock();
4a71df50
FB		 1648}
1649
80d5c368
PM		 1650static int qeth_l3_vlan_rx_add_vid(struct net_device *dev,
1651 __be16 proto, u16 vid)
4a71df50 1652{
509e2562 1653 struct qeth_card *card = dev->ml_priv;
4a71df50 1654
7ff0bcf6 1655 set_bit(vid, card->active_vlans);
8e586137 1656 return 0;
4a71df50
FB		 1657}
1658
80d5c368
PM		 1659static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev,
1660 __be16 proto, u16 vid)
4a71df50 1661{
509e2562 1662 struct qeth_card *card = dev->ml_priv;
4a71df50 1663
847a50fd 1664 QETH_CARD_TEXT_(card, 4, "kid:%d", vid);
5f78e29c 1665
8e98ac48 1666 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
847a50fd 1667 QETH_CARD_TEXT(card, 3, "kidREC");
8e586137 1668 return 0;
8e98ac48 1669 }
4a71df50
FB		 1670 /* unregister IP addresses of vlan device */
1671 qeth_l3_free_vlan_addresses(card, vid);
7ff0bcf6 1672 clear_bit(vid, card->active_vlans);
4a71df50 1673 qeth_l3_set_multicast_list(card->dev);
8e586137 1674 return 0;
4a71df50
FB		 1675}
1676
10651db7
UB		 1677static inline int qeth_l3_rebuild_skb(struct qeth_card *card,
1678 struct sk_buff *skb, struct qeth_hdr *hdr,
1679 unsigned short *vlan_id)
4a71df50 1680{
4a71df50
FB		 1681 __be16 prot;
1682 struct iphdr *ip_hdr;
1683 unsigned char tg_addr[MAX_ADDR_LEN];
10651db7 1684 int is_vlan = 0;
4a71df50
FB		 1685
1686 if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) {
1687 prot = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
1688 ETH_P_IP);
1689 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) {
1690 case QETH_CAST_MULTICAST:
1691 switch (prot) {
1692#ifdef CONFIG_QETH_IPV6
1693 case __constant_htons(ETH_P_IPV6):
1694 ndisc_mc_map((struct in6_addr *)
1695 skb->data + 24,
1696 tg_addr, card->dev, 0);
1697 break;
1698#endif
1699 case __constant_htons(ETH_P_IP):
1700 ip_hdr = (struct iphdr *)skb->data;
4a71df50
FB		 1701 ip_eth_mc_map(ip_hdr->daddr, tg_addr);
1702 break;
1703 default:
1704 memcpy(tg_addr, card->dev->broadcast,
1705 card->dev->addr_len);
1706 }
1707 card->stats.multicast++;
1708 skb->pkt_type = PACKET_MULTICAST;
1709 break;
1710 case QETH_CAST_BROADCAST:
1711 memcpy(tg_addr, card->dev->broadcast,
1712 card->dev->addr_len);
1713 card->stats.multicast++;
1714 skb->pkt_type = PACKET_BROADCAST;
1715 break;
1716 case QETH_CAST_UNICAST:
1717 case QETH_CAST_ANYCAST:
1718 case QETH_CAST_NOCAST:
1719 default:
76b11f8e
UB		 1720 if (card->options.sniffer)
1721 skb->pkt_type = PACKET_OTHERHOST;
1722 else
1723 skb->pkt_type = PACKET_HOST;
4a71df50
FB		 1724 memcpy(tg_addr, card->dev->dev_addr,
1725 card->dev->addr_len);
1726 }
fe94e2e0
UB		 1727 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
1728 card->dev->header_ops->create(skb, card->dev, prot,
1729 tg_addr, &hdr->hdr.l3.dest_addr[2],
1730 card->dev->addr_len);
1731 else
1732 card->dev->header_ops->create(skb, card->dev, prot,
1733 tg_addr, "FAKELL", card->dev->addr_len);
4a71df50
FB		 1734 }
1735
1abd2296 1736 skb->protocol = eth_type_trans(skb, card->dev);
4a71df50
FB		 1737
1738 if (hdr->hdr.l3.ext_flags &
1739 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
10651db7 1740 *vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME) ?
4a71df50 1741 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
10651db7 1742 is_vlan = 1;
4a71df50
FB		 1743 }
1744
c5e631a8 1745 if (card->dev->features & NETIF_F_RXCSUM) {
4a71df50 1746 if ((hdr->hdr.l3.ext_flags &
b9139800
UB		 1747 (QETH_HDR_EXT_CSUM_HDR_REQ |
1748 QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
1749 (QETH_HDR_EXT_CSUM_HDR_REQ |
1750 QETH_HDR_EXT_CSUM_TRANSP_REQ))
4a71df50
FB		 1751 skb->ip_summed = CHECKSUM_UNNECESSARY;
1752 else
b9139800 1753 skb->ip_summed = CHECKSUM_NONE;
c5e631a8
FB		 1754 } else
1755 skb->ip_summed = CHECKSUM_NONE;
10651db7 1756 return is_vlan;
4a71df50
FB		 1757}
1758
a1c3ed4c
FB		 1759static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
1760 int budget, int *done)
4a71df50 1761{
a1c3ed4c 1762 int work_done = 0;
4a71df50
FB		 1763 struct sk_buff *skb;
1764 struct qeth_hdr *hdr;
4a71df50 1765 __u16 vlan_tag = 0;
10651db7 1766 int is_vlan;
4a71df50 1767 unsigned int len;
b3332930 1768 __u16 magic;
4a71df50 1769
a1c3ed4c 1770 *done = 0;
18af5c17 1771 WARN_ON_ONCE(!budget);
a1c3ed4c
FB		 1772 while (budget) {
1773 skb = qeth_core_get_next_skb(card,
b3332930 1774 &card->qdio.in_q->bufs[card->rx.b_index],
a1c3ed4c
FB		 1775 &card->rx.b_element, &card->rx.e_offset, &hdr);
1776 if (!skb) {
1777 *done = 1;
1778 break;
1779 }
1780 skb->dev = card->dev;
4a71df50
FB		 1781 switch (hdr->hdr.l3.id) {
1782 case QETH_HEADER_TYPE_LAYER3:
b3332930
FB		 1783 magic = *(__u16 *)skb->data;
1784 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
1785 (magic == ETH_P_AF_IUCV)) {
1786 skb->protocol = ETH_P_AF_IUCV;
1787 skb->pkt_type = PACKET_HOST;
1788 skb->mac_header = NET_SKB_PAD;
1789 skb->dev = card->dev;
1790 len = skb->len;
1791 card->dev->header_ops->create(skb, card->dev, 0,
1792 card->dev->dev_addr, "FAKELL",
1793 card->dev->addr_len);
1794 netif_receive_skb(skb);
1795 } else {
1796 is_vlan = qeth_l3_rebuild_skb(card, skb, hdr,
10651db7 1797 &vlan_tag);
b3332930
FB		 1798 len = skb->len;
1799 if (is_vlan && !card->options.sniffer)
91b1c1aa
PM		 1800 __vlan_hwaccel_put_tag(skb,
1801 htons(ETH_P_8021Q), vlan_tag);
b3332930
FB		 1802 napi_gro_receive(&card->napi, skb);
1803 }
4a71df50 1804 break;
76b11f8e
UB		 1805 case QETH_HEADER_TYPE_LAYER2: /* for HiperSockets sniffer */
1806 skb->pkt_type = PACKET_HOST;
1807 skb->protocol = eth_type_trans(skb, skb->dev);
76b11f8e
UB		 1808 len = skb->len;
1809 netif_receive_skb(skb);
1810 break;
4a71df50
FB		 1811 default:
1812 dev_kfree_skb_any(skb);
847a50fd 1813 QETH_CARD_TEXT(card, 3, "inbunkno");
d11ba0c4 1814 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN);
4a71df50
FB		 1815 continue;
1816 }
a1c3ed4c
FB		 1817 work_done++;
1818 budget--;
4a71df50
FB		 1819 card->stats.rx_packets++;
1820 card->stats.rx_bytes += len;
1821 }
a1c3ed4c
FB		 1822 return work_done;
1823}
1824
1825static int qeth_l3_poll(struct napi_struct *napi, int budget)
1826{
1827 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
1828 int work_done = 0;
1829 struct qeth_qdio_buffer *buffer;
1830 int done;
1831 int new_budget = budget;
1832
1833 if (card->options.performance_stats) {
1834 card->perf_stats.inbound_cnt++;
1835 card->perf_stats.inbound_start_time = qeth_get_micros();
1836 }
1837
1838 while (1) {
1839 if (!card->rx.b_count) {
1840 card->rx.qdio_err = 0;
1841 card->rx.b_count = qdio_get_next_buffers(
1842 card->data.ccwdev, 0, &card->rx.b_index,
1843 &card->rx.qdio_err);
1844 if (card->rx.b_count <= 0) {
1845 card->rx.b_count = 0;
1846 break;
1847 }
1848 card->rx.b_element =
1849 &card->qdio.in_q->bufs[card->rx.b_index]
1850 .buffer->element[0];
1851 card->rx.e_offset = 0;
1852 }
1853
1854 while (card->rx.b_count) {
1855 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
1856 if (!(card->rx.qdio_err &&
1857 qeth_check_qdio_errors(card, buffer->buffer,
1858 card->rx.qdio_err, "qinerr")))
1859 work_done += qeth_l3_process_inbound_buffer(
1860 card, new_budget, &done);
1861 else
1862 done = 1;
1863
1864 if (done) {
1865 if (card->options.performance_stats)
1866 card->perf_stats.bufs_rec++;
1867 qeth_put_buffer_pool_entry(card,
1868 buffer->pool_entry);
1869 qeth_queue_input_buffer(card, card->rx.b_index);
1870 card->rx.b_count--;
1871 if (card->rx.b_count) {
1872 card->rx.b_index =
1873 (card->rx.b_index + 1) %
1874 QDIO_MAX_BUFFERS_PER_Q;
1875 card->rx.b_element =
1876 &card->qdio.in_q
1877 ->bufs[card->rx.b_index]
1878 .buffer->element[0];
1879 card->rx.e_offset = 0;
1880 }
1881 }
1882
1883 if (work_done >= budget)
1884 goto out;
1885 else
1886 new_budget = budget - work_done;
1887 }
1888 }
1889
1890 napi_complete(napi);
1891 if (qdio_start_irq(card->data.ccwdev, 0))
1892 napi_schedule(&card->napi);
1893out:
1894 if (card->options.performance_stats)
1895 card->perf_stats.inbound_time += qeth_get_micros() -
1896 card->perf_stats.inbound_start_time;
1897 return work_done;
4a71df50
FB		 1898}
1899
1900static int qeth_l3_verify_vlan_dev(struct net_device *dev,
1901 struct qeth_card *card)
1902{
1903 int rc = 0;
7ff0bcf6 1904 u16 vid;
4a71df50 1905
7ff0bcf6
JP		 1906 for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
1907 struct net_device *netdev;
4a71df50 1908
7ff0bcf6 1909 rcu_read_lock();
f06c7f9f 1910 netdev = __vlan_find_dev_deep_rcu(card->dev, htons(ETH_P_8021Q),
91b1c1aa 1911 vid);
7ff0bcf6
JP		 1912 rcu_read_unlock();
1913 if (netdev == dev) {
4a71df50
FB		 1914 rc = QETH_VLAN_CARD;
1915 break;
1916 }
1917 }
1918
509e2562 1919 if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
4a71df50
FB		 1920 return 0;
1921
1922 return rc;
1923}
1924
1925static int qeth_l3_verify_dev(struct net_device *dev)
1926{
1927 struct qeth_card *card;
4a71df50 1928 int rc = 0;
5f78e29c 1929 unsigned long flags;
4a71df50
FB		 1930
1931 read_lock_irqsave(&qeth_core_card_list.rwlock, flags);
1932 list_for_each_entry(card, &qeth_core_card_list.list, list) {
1933 if (card->dev == dev) {
1934 rc = QETH_REAL_CARD;
1935 break;
1936 }
1937 rc = qeth_l3_verify_vlan_dev(dev, card);
1938 if (rc)
1939 break;
1940 }
1941 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
1942
1943 return rc;
1944}
1945
1946static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev)
1947{
1948 struct qeth_card *card = NULL;
1949 int rc;
1950
1951 rc = qeth_l3_verify_dev(dev);
1952 if (rc == QETH_REAL_CARD)
509e2562 1953 card = dev->ml_priv;
4a71df50 1954 else if (rc == QETH_VLAN_CARD)
509e2562 1955 card = vlan_dev_real_dev(dev)->ml_priv;
e5bd7be5 1956 if (card && card->options.layer2)
4a71df50 1957 card = NULL;
847a50fd
CO		 1958 if (card)
1959 QETH_CARD_TEXT_(card, 4, "%d", rc);
4a71df50
FB		 1960 return card ;
1961}
1962
b2f4de8b 1963static void qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
4a71df50 1964{
d11ba0c4
PT		 1965 QETH_DBF_TEXT(SETUP, 2, "stopcard");
1966 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50
FB		 1967
1968 qeth_set_allowed_threads(card, 0, 1);
76b11f8e
UB		 1969 if (card->options.sniffer &&
1970 (card->info.promisc_mode == SET_PROMISC_MODE_ON))
1971 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
4a71df50
FB		 1972 if (card->read.state == CH_STATE_UP &&
1973 card->write.state == CH_STATE_UP &&
1974 (card->state == CARD_STATE_UP)) {
1975 if (recovery_mode)
1976 qeth_l3_stop(card->dev);
8af7c5ae 1977 else {
869da90b
UB		 1978 rtnl_lock();
1979 dev_close(card->dev);
1980 rtnl_unlock();
8af7c5ae 1981 }
4a71df50
FB		 1982 card->state = CARD_STATE_SOFTSETUP;
1983 }
1984 if (card->state == CARD_STATE_SOFTSETUP) {
5f78e29c 1985 qeth_l3_clear_ip_htable(card, 1);
4a71df50
FB		 1986 qeth_clear_ipacmd_list(card);
1987 card->state = CARD_STATE_HARDSETUP;
1988 }
1989 if (card->state == CARD_STATE_HARDSETUP) {
4a71df50
FB		 1990 qeth_qdio_clear_card(card, 0);
1991 qeth_clear_qdio_buffers(card);
1992 qeth_clear_working_pool_list(card);
1993 card->state = CARD_STATE_DOWN;
1994 }
1995 if (card->state == CARD_STATE_DOWN) {
1996 qeth_clear_cmd_buffers(&card->read);
1997 qeth_clear_cmd_buffers(&card->write);
1998 }
4a71df50
FB		 1999}
2000
76b11f8e
UB		 2001/*
2002 * test for and Switch promiscuous mode (on or off)
2003 * either for guestlan or HiperSocket Sniffer
2004 */
2005static void
2006qeth_l3_handle_promisc_mode(struct qeth_card *card)
2007{
2008 struct net_device *dev = card->dev;
2009
2010 if (((dev->flags & IFF_PROMISC) &&
2011 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
2012 (!(dev->flags & IFF_PROMISC) &&
2013 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
2014 return;
2015
2016 if (card->info.guestlan) { /* Guestlan trace */
2017 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2018 qeth_setadp_promisc_mode(card);
2019 } else if (card->options.sniffer && /* HiperSockets trace */
2020 qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
2021 if (dev->flags & IFF_PROMISC) {
847a50fd 2022 QETH_CARD_TEXT(card, 3, "+promisc");
76b11f8e
UB		 2023 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_ENABLE);
2024 } else {
847a50fd 2025 QETH_CARD_TEXT(card, 3, "-promisc");
76b11f8e
UB		 2026 qeth_diags_trace(card, QETH_DIAGS_CMD_TRACE_DISABLE);
2027 }
2028 }
2029}
2030
4a71df50
FB		 2031static void qeth_l3_set_multicast_list(struct net_device *dev)
2032{
509e2562 2033 struct qeth_card *card = dev->ml_priv;
4a71df50 2034
847a50fd 2035 QETH_CARD_TEXT(card, 3, "setmulti");
8e98ac48
UB		 2036 if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
2037 (card->state != CARD_STATE_UP))
2038 return;
76b11f8e 2039 if (!card->options.sniffer) {
5f78e29c
LD		 2040
2041 spin_lock_bh(&card->mclock);
2042
2043 qeth_l3_mark_all_mc_to_be_deleted(card);
2044
76b11f8e 2045 qeth_l3_add_multicast_ipv4(card);
4a71df50 2046#ifdef CONFIG_QETH_IPV6
76b11f8e 2047 qeth_l3_add_multicast_ipv6(card);
4a71df50 2048#endif
5f78e29c
LD		 2049 qeth_l3_delete_nonused_mc(card);
2050 qeth_l3_add_all_new_mc(card);
2051
2052 spin_unlock_bh(&card->mclock);
2053
76b11f8e
UB		 2054 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
2055 return;
2056 }
2057 qeth_l3_handle_promisc_mode(card);
4a71df50
FB		 2058}
2059
2060static const char *qeth_l3_arp_get_error_cause(int *rc)
2061{
2062 switch (*rc) {
2063 case QETH_IPA_ARP_RC_FAILED:
2064 *rc = -EIO;
2065 return "operation failed";
2066 case QETH_IPA_ARP_RC_NOTSUPP:
2067 *rc = -EOPNOTSUPP;
2068 return "operation not supported";
2069 case QETH_IPA_ARP_RC_OUT_OF_RANGE:
2070 *rc = -EINVAL;
2071 return "argument out of range";
2072 case QETH_IPA_ARP_RC_Q_NOTSUPP:
2073 *rc = -EOPNOTSUPP;
2074 return "query operation not supported";
2075 case QETH_IPA_ARP_RC_Q_NO_DATA:
2076 *rc = -ENOENT;
2077 return "no query data available";
2078 default:
2079 return "unknown error";
2080 }
2081}
2082
2083static int qeth_l3_arp_set_no_entries(struct qeth_card *card, int no_entries)
2084{
2085 int tmp;
2086 int rc;
2087
847a50fd 2088 QETH_CARD_TEXT(card, 3, "arpstnoe");
4a71df50
FB		 2089
2090 /*
2091 * currently GuestLAN only supports the ARP assist function
2092 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
2093 * thus we say EOPNOTSUPP for this ARP function
2094 */
2095 if (card->info.guestlan)
2096 return -EOPNOTSUPP;
2097 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2098 return -EOPNOTSUPP;
2099 }
4d7def2a 2100 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4a71df50
FB		 2101 IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
2102 no_entries);
2103 if (rc) {
2104 tmp = rc;
14cc21b6
FB		 2105 QETH_DBF_MESSAGE(2, "Could not set number of ARP entries on "
2106 "%s: %s (0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2107 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2108 }
2109 return rc;
2110}
2111
d0ddf30f
EL		 2112static __u32 get_arp_entry_size(struct qeth_card *card,
2113 struct qeth_arp_query_data *qdata,
2114 struct qeth_arp_entrytype *type, __u8 strip_entries)
4a71df50 2115{
d0ddf30f
EL		 2116 __u32 rc;
2117 __u8 is_hsi;
4a71df50 2118
d0ddf30f
EL		 2119 is_hsi = qdata->reply_bits == 5;
2120 if (type->ip == QETHARP_IP_ADDR_V4) {
2121 QETH_CARD_TEXT(card, 4, "arpev4");
2122 if (strip_entries) {
2123 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5_short) :
2124 sizeof(struct qeth_arp_qi_entry7_short);
2125 } else {
2126 rc = is_hsi ? sizeof(struct qeth_arp_qi_entry5) :
2127 sizeof(struct qeth_arp_qi_entry7);
2128 }
2129 } else if (type->ip == QETHARP_IP_ADDR_V6) {
2130 QETH_CARD_TEXT(card, 4, "arpev6");
2131 if (strip_entries) {
2132 rc = is_hsi ?
2133 sizeof(struct qeth_arp_qi_entry5_short_ipv6) :
2134 sizeof(struct qeth_arp_qi_entry7_short_ipv6);
2135 } else {
2136 rc = is_hsi ?
2137 sizeof(struct qeth_arp_qi_entry5_ipv6) :
2138 sizeof(struct qeth_arp_qi_entry7_ipv6);
2139 }
2140 } else {
2141 QETH_CARD_TEXT(card, 4, "arpinv");
2142 rc = 0;
4a71df50 2143 }
d0ddf30f
EL		 2144
2145 return rc;
2146}
2147
2148static int arpentry_matches_prot(struct qeth_arp_entrytype *type, __u16 prot)
2149{
2150 return (type->ip == QETHARP_IP_ADDR_V4 && prot == QETH_PROT_IPV4) ||
2151 (type->ip == QETHARP_IP_ADDR_V6 && prot == QETH_PROT_IPV6);
4a71df50
FB		 2152}
2153
2154static int qeth_l3_arp_query_cb(struct qeth_card *card,
2155 struct qeth_reply *reply, unsigned long data)
2156{
2157 struct qeth_ipa_cmd *cmd;
2158 struct qeth_arp_query_data *qdata;
2159 struct qeth_arp_query_info *qinfo;
4a71df50 2160 int i;
d0ddf30f
EL		 2161 int e;
2162 int entrybytes_done;
2163 int stripped_bytes;
2164 __u8 do_strip_entries;
4a71df50 2165
d0ddf30f 2166 QETH_CARD_TEXT(card, 3, "arpquecb");
4a71df50
FB		 2167
2168 qinfo = (struct qeth_arp_query_info *) reply->param;
2169 cmd = (struct qeth_ipa_cmd *) data;
d0ddf30f 2170 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.prot_version);
4a71df50 2171 if (cmd->hdr.return_code) {
d0ddf30f
EL		 2172 QETH_CARD_TEXT(card, 4, "arpcberr");
2173 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2174 return 0;
2175 }
2176 if (cmd->data.setassparms.hdr.return_code) {
2177 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
d0ddf30f
EL		 2178 QETH_CARD_TEXT(card, 4, "setaperr");
2179 QETH_CARD_TEXT_(card, 4, "%i", cmd->hdr.return_code);
4a71df50
FB		 2180 return 0;
2181 }
2182 qdata = &cmd->data.setassparms.data.query_arp;
847a50fd 2183 QETH_CARD_TEXT_(card, 4, "anoen%i", qdata->no_entries);
4a71df50 2184
d0ddf30f
EL		 2185 do_strip_entries = (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) > 0;
2186 stripped_bytes = do_strip_entries ? QETH_QARP_MEDIASPECIFIC_BYTES : 0;
2187 entrybytes_done = 0;
2188 for (e = 0; e < qdata->no_entries; ++e) {
2189 char *cur_entry;
2190 __u32 esize;
2191 struct qeth_arp_entrytype *etype;
2192
2193 cur_entry = &qdata->data + entrybytes_done;
2194 etype = &((struct qeth_arp_qi_entry5 *) cur_entry)->type;
2195 if (!arpentry_matches_prot(etype, cmd->hdr.prot_version)) {
2196 QETH_CARD_TEXT(card, 4, "pmis");
2197 QETH_CARD_TEXT_(card, 4, "%i", etype->ip);
2198 break;
2199 }
2200 esize = get_arp_entry_size(card, qdata, etype,
2201 do_strip_entries);
2202 QETH_CARD_TEXT_(card, 5, "esz%i", esize);
2203 if (!esize)
2204 break;
2205
2206 if ((qinfo->udata_len - qinfo->udata_offset) < esize) {
2207 QETH_CARD_TEXT_(card, 4, "qaer3%i", -ENOMEM);
e0a8114c 2208 cmd->hdr.return_code = IPA_RC_ENOMEM;
d0ddf30f
EL		 2209 goto out_error;
2210 }
4a71df50 2211
d0ddf30f
EL		 2212 memcpy(qinfo->udata + qinfo->udata_offset,
2213 &qdata->data + entrybytes_done + stripped_bytes,
2214 esize);
2215 entrybytes_done += esize + stripped_bytes;
2216 qinfo->udata_offset += esize;
2217 ++qinfo->no_entries;
2218 }
4a71df50
FB		 2219 /* check if all replies received ... */
2220 if (cmd->data.setassparms.hdr.seq_no <
2221 cmd->data.setassparms.hdr.number_of_replies)
2222 return 1;
d0ddf30f 2223 QETH_CARD_TEXT_(card, 4, "nove%i", qinfo->no_entries);
4a71df50
FB		 2224 memcpy(qinfo->udata, &qinfo->no_entries, 4);
2225 /* keep STRIP_ENTRIES flag so the user program can distinguish
2226 * stripped entries from normal ones */
2227 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
2228 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
2229 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET, &qdata->reply_bits, 2);
d0ddf30f 2230 QETH_CARD_TEXT_(card, 4, "rc%i", 0);
4a71df50
FB		 2231 return 0;
2232out_error:
2233 i = 0;
2234 memcpy(qinfo->udata, &i, 4);
2235 return 0;
2236}
2237
2238static int qeth_l3_send_ipa_arp_cmd(struct qeth_card *card,
2239 struct qeth_cmd_buffer *iob, int len,
2240 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2241 unsigned long),
2242 void *reply_param)
2243{
847a50fd 2244 QETH_CARD_TEXT(card, 4, "sendarp");
4a71df50
FB		 2245
2246 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2247 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2248 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2249 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
2250 reply_cb, reply_param);
2251}
2252
d0ddf30f
EL		 2253static int qeth_l3_query_arp_cache_info(struct qeth_card *card,
2254 enum qeth_prot_versions prot,
2255 struct qeth_arp_query_info *qinfo)
4a71df50
FB		 2256{
2257 struct qeth_cmd_buffer *iob;
d0ddf30f 2258 struct qeth_ipa_cmd *cmd;
4a71df50
FB		 2259 int tmp;
2260 int rc;
2261
d0ddf30f
EL		 2262 QETH_CARD_TEXT_(card, 3, "qarpipv%i", prot);
2263
b475e316
TR		 2264 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
2265 IPA_CMD_ASS_ARP_QUERY_INFO,
2266 sizeof(struct qeth_arp_query_data)
2267 - sizeof(char),
2268 prot);
1aec42bc
TR		 2269 if (!iob)
2270 return -ENOMEM;
d0ddf30f
EL		 2271 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2272 cmd->data.setassparms.data.query_arp.request_bits = 0x000F;
2273 cmd->data.setassparms.data.query_arp.reply_bits = 0;
2274 cmd->data.setassparms.data.query_arp.no_entries = 0;
2275 rc = qeth_l3_send_ipa_arp_cmd(card, iob,
2276 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
2277 qeth_l3_arp_query_cb, (void *)qinfo);
2278 if (rc) {
2279 tmp = rc;
2280 QETH_DBF_MESSAGE(2,
2281 "Error while querying ARP cache on %s: %s "
2282 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
2283 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2284 }
2285
2286 return rc;
2287}
2288
2289static int qeth_l3_arp_query(struct qeth_card *card, char __user *udata)
2290{
2291 struct qeth_arp_query_info qinfo = {0, };
2292 int rc;
2293
847a50fd 2294 QETH_CARD_TEXT(card, 3, "arpquery");
4a71df50
FB		 2295
2296 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
2297 IPA_ARP_PROCESSING)) {
d0ddf30f
EL		 2298 QETH_CARD_TEXT(card, 3, "arpqnsup");
2299 rc = -EOPNOTSUPP;
2300 goto out;
4a71df50
FB		 2301 }
2302 /* get size of userspace buffer and mask_bits -> 6 bytes */
d0ddf30f
EL		 2303 if (copy_from_user(&qinfo, udata, 6)) {
2304 rc = -EFAULT;
2305 goto out;
2306 }
4a71df50 2307 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
d0ddf30f
EL		 2308 if (!qinfo.udata) {
2309 rc = -ENOMEM;
2310 goto out;
2311 }
4a71df50 2312 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
d0ddf30f 2313 rc = qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV4, &qinfo);
4a71df50 2314 if (rc) {
4a71df50
FB		 2315 if (copy_to_user(udata, qinfo.udata, 4))
2316 rc = -EFAULT;
d0ddf30f 2317 goto free_and_out;
4a71df50 2318 } else {
d0ddf30f
EL		 2319#ifdef CONFIG_QETH_IPV6
2320 if (qinfo.mask_bits & QETH_QARP_WITH_IPV6) {
2321 /* fails in case of GuestLAN QDIO mode */
2322 qeth_l3_query_arp_cache_info(card, QETH_PROT_IPV6,
2323 &qinfo);
2324 }
2325#endif
2326 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) {
2327 QETH_CARD_TEXT(card, 4, "qactf");
4a71df50 2328 rc = -EFAULT;
d0ddf30f
EL		 2329 goto free_and_out;
2330 }
8a593148 2331 QETH_CARD_TEXT(card, 4, "qacts");
4a71df50 2332 }
d0ddf30f 2333free_and_out:
4a71df50 2334 kfree(qinfo.udata);
d0ddf30f 2335out:
4a71df50
FB		 2336 return rc;
2337}
2338
2339static int qeth_l3_arp_add_entry(struct qeth_card *card,
2340 struct qeth_arp_cache_entry *entry)
2341{
2342 struct qeth_cmd_buffer *iob;
2343 char buf[16];
2344 int tmp;
2345 int rc;
2346
847a50fd 2347 QETH_CARD_TEXT(card, 3, "arpadent");
4a71df50
FB		 2348
2349 /*
2350 * currently GuestLAN only supports the ARP assist function
2351 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
2352 * thus we say EOPNOTSUPP for this ARP function
2353 */
2354 if (card->info.guestlan)
2355 return -EOPNOTSUPP;
2356 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2357 return -EOPNOTSUPP;
2358 }
2359
b475e316 2360 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4a71df50
FB		 2361 IPA_CMD_ASS_ARP_ADD_ENTRY,
2362 sizeof(struct qeth_arp_cache_entry),
2363 QETH_PROT_IPV4);
1aec42bc
TR		 2364 if (!iob)
2365 return -ENOMEM;
4d7def2a 2366 rc = qeth_send_setassparms(card, iob,
4a71df50
FB		 2367 sizeof(struct qeth_arp_cache_entry),
2368 (unsigned long) entry,
8f43fb00 2369 qeth_setassparms_cb, NULL);
4a71df50
FB		 2370 if (rc) {
2371 tmp = rc;
2372 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2373 QETH_DBF_MESSAGE(2, "Could not add ARP entry for address %s "
2374 "on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2375 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2376 }
2377 return rc;
2378}
2379
2380static int qeth_l3_arp_remove_entry(struct qeth_card *card,
2381 struct qeth_arp_cache_entry *entry)
2382{
2383 struct qeth_cmd_buffer *iob;
2384 char buf[16] = {0, };
2385 int tmp;
2386 int rc;
2387
847a50fd 2388 QETH_CARD_TEXT(card, 3, "arprment");
4a71df50
FB		 2389
2390 /*
2391 * currently GuestLAN only supports the ARP assist function
2392 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
2393 * thus we say EOPNOTSUPP for this ARP function
2394 */
2395 if (card->info.guestlan)
2396 return -EOPNOTSUPP;
2397 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2398 return -EOPNOTSUPP;
2399 }
2400 memcpy(buf, entry, 12);
b475e316 2401 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4a71df50
FB		 2402 IPA_CMD_ASS_ARP_REMOVE_ENTRY,
2403 12,
2404 QETH_PROT_IPV4);
1aec42bc
TR		 2405 if (!iob)
2406 return -ENOMEM;
4d7def2a 2407 rc = qeth_send_setassparms(card, iob,
4a71df50 2408 12, (unsigned long)buf,
8f43fb00 2409 qeth_setassparms_cb, NULL);
4a71df50
FB		 2410 if (rc) {
2411 tmp = rc;
2412 memset(buf, 0, 16);
2413 qeth_l3_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
14cc21b6
FB		 2414 QETH_DBF_MESSAGE(2, "Could not delete ARP entry for address %s"
2415 " on %s: %s (0x%x/%d)\n", buf, QETH_CARD_IFNAME(card),
2416 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
4a71df50
FB		 2417 }
2418 return rc;
2419}
2420
2421static int qeth_l3_arp_flush_cache(struct qeth_card *card)
2422{
2423 int rc;
2424 int tmp;
2425
847a50fd 2426 QETH_CARD_TEXT(card, 3, "arpflush");
4a71df50
FB		 2427
2428 /*
2429 * currently GuestLAN only supports the ARP assist function
2430 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
2431 * thus we say EOPNOTSUPP for this ARP function
2432 */
2433 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
2434 return -EOPNOTSUPP;
2435 if (!qeth_is_supported(card, IPA_ARP_PROCESSING)) {
4a71df50
FB		 2436 return -EOPNOTSUPP;
2437 }
4d7def2a 2438 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4a71df50
FB		 2439 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
2440 if (rc) {
2441 tmp = rc;
14cc21b6
FB		 2442 QETH_DBF_MESSAGE(2, "Could not flush ARP cache on %s: %s "
2443 "(0x%x/%d)\n", QETH_CARD_IFNAME(card),
4a71df50
FB		 2444 qeth_l3_arp_get_error_cause(&rc), tmp, tmp);
2445 }
2446 return rc;
2447}
2448
2449static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2450{
509e2562 2451 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2452 struct qeth_arp_cache_entry arp_entry;
2453 struct mii_ioctl_data *mii_data;
2454 int rc = 0;
2455
2456 if (!card)
2457 return -ENODEV;
2458
c3521254 2459 if (!qeth_card_hw_is_reachable(card))
4a71df50
FB		 2460 return -ENODEV;
2461
2462 switch (cmd) {
2463 case SIOC_QETH_ARP_SET_NO_ENTRIES:
2464 if (!capable(CAP_NET_ADMIN)) {
2465 rc = -EPERM;
2466 break;
2467 }
2468 rc = qeth_l3_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
2469 break;
2470 case SIOC_QETH_ARP_QUERY_INFO:
2471 if (!capable(CAP_NET_ADMIN)) {
2472 rc = -EPERM;
2473 break;
2474 }
2475 rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
2476 break;
2477 case SIOC_QETH_ARP_ADD_ENTRY:
2478 if (!capable(CAP_NET_ADMIN)) {
2479 rc = -EPERM;
2480 break;
2481 }
2482 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2483 sizeof(struct qeth_arp_cache_entry)))
2484 rc = -EFAULT;
2485 else
2486 rc = qeth_l3_arp_add_entry(card, &arp_entry);
2487 break;
2488 case SIOC_QETH_ARP_REMOVE_ENTRY:
2489 if (!capable(CAP_NET_ADMIN)) {
2490 rc = -EPERM;
2491 break;
2492 }
2493 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
2494 sizeof(struct qeth_arp_cache_entry)))
2495 rc = -EFAULT;
2496 else
2497 rc = qeth_l3_arp_remove_entry(card, &arp_entry);
2498 break;
2499 case SIOC_QETH_ARP_FLUSH_CACHE:
2500 if (!capable(CAP_NET_ADMIN)) {
2501 rc = -EPERM;
2502 break;
2503 }
2504 rc = qeth_l3_arp_flush_cache(card);
2505 break;
2506 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
2507 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
2508 break;
2509 case SIOC_QETH_GET_CARD_TYPE:
5113fec0
UB		 2510 if ((card->info.type == QETH_CARD_TYPE_OSD ||
2511 card->info.type == QETH_CARD_TYPE_OSX) &&
4a71df50
FB		 2512 !card->info.guestlan)
2513 return 1;
2514 return 0;
2515 break;
2516 case SIOCGMIIPHY:
2517 mii_data = if_mii(rq);
2518 mii_data->phy_id = 0;
2519 break;
2520 case SIOCGMIIREG:
2521 mii_data = if_mii(rq);
2522 if (mii_data->phy_id != 0)
2523 rc = -EINVAL;
2524 else
2525 mii_data->val_out = qeth_mdio_read(dev,
2526 mii_data->phy_id,
2527 mii_data->reg_num);
2528 break;
c3ab96f3
FB		 2529 case SIOC_QETH_QUERY_OAT:
2530 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
2531 break;
4a71df50
FB		 2532 default:
2533 rc = -EOPNOTSUPP;
2534 }
2535 if (rc)
847a50fd 2536 QETH_CARD_TEXT_(card, 2, "ioce%d", rc);
4a71df50
FB		 2537 return rc;
2538}
2539
ce73e10e
KDW		 2540int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2541{
2542 int cast_type = RTN_UNSPEC;
69cce1d1
DM		 2543 struct neighbour *n = NULL;
2544 struct dst_entry *dst;
2545
1d36cb47 2546 rcu_read_lock();
69cce1d1
DM		 2547 dst = skb_dst(skb);
2548 if (dst)
24db1ba8 2549 n = dst_neigh_lookup_skb(dst, skb);
69cce1d1
DM		 2550 if (n) {
2551 cast_type = n->type;
1d36cb47 2552 rcu_read_unlock();
24db1ba8 2553 neigh_release(n);
ce73e10e
KDW		 2554 if ((cast_type == RTN_BROADCAST) ||
2555 (cast_type == RTN_MULTICAST) ||
2556 (cast_type == RTN_ANYCAST))
2557 return cast_type;
2558 else
2559 return RTN_UNSPEC;
2560 }
1d36cb47
FB		 2561 rcu_read_unlock();
2562
ce73e10e
KDW		 2563 /* try something else */
2564 if (skb->protocol == ETH_P_IPV6)
2565 return (skb_network_header(skb)[24] == 0xff) ?
2566 RTN_MULTICAST : 0;
2567 else if (skb->protocol == ETH_P_IP)
2568 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2569 RTN_MULTICAST : 0;
2570 /* ... */
2571 if (!memcmp(skb->data, skb->dev->broadcast, 6))
2572 return RTN_BROADCAST;
2573 else {
2574 u16 hdr_mac;
2575
2576 hdr_mac = *((u16 *)skb->data);
2577 /* tr multicast? */
2578 switch (card->info.link_type) {
2579 case QETH_LINK_TYPE_HSTR:
2580 case QETH_LINK_TYPE_LANE_TR:
2581 if ((hdr_mac == QETH_TR_MAC_NC) ||
2582 (hdr_mac == QETH_TR_MAC_C))
2583 return RTN_MULTICAST;
2584 break;
2585 /* eth or so multicast? */
2586 default:
2587 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2588 (hdr_mac == QETH_ETH_MAC_V6))
2589 return RTN_MULTICAST;
2590 }
2591 }
2592 return cast_type;
2593}
2594
b3332930
FB		 2595static void qeth_l3_fill_af_iucv_hdr(struct qeth_card *card,
2596 struct qeth_hdr *hdr, struct sk_buff *skb)
2597{
2598 char daddr[16];
2599 struct af_iucv_trans_hdr *iucv_hdr;
2600
2601 skb_pull(skb, 14);
2602 card->dev->header_ops->create(skb, card->dev, 0,
2603 card->dev->dev_addr, card->dev->dev_addr,
2604 card->dev->addr_len);
2605 skb_pull(skb, 14);
2606 iucv_hdr = (struct af_iucv_trans_hdr *)skb->data;
2607 memset(hdr, 0, sizeof(struct qeth_hdr));
2608 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2609 hdr->hdr.l3.ext_flags = 0;
2610 hdr->hdr.l3.length = skb->len;
2611 hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
2612 memset(daddr, 0, sizeof(daddr));
2613 daddr[0] = 0xfe;
2614 daddr[1] = 0x80;
2615 memcpy(&daddr[8], iucv_hdr->destUserID, 8);
2616 memcpy(hdr->hdr.l3.dest_addr, daddr, 16);
2617}
2618
4a71df50
FB		 2619static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
2620 struct sk_buff *skb, int ipv, int cast_type)
2621{
69cce1d1
DM		 2622 struct dst_entry *dst;
2623
4a71df50
FB		 2624 memset(hdr, 0, sizeof(struct qeth_hdr));
2625 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
2626 hdr->hdr.l3.ext_flags = 0;
2627
2628 /*
2629 * before we're going to overwrite this location with next hop ip.
2630 * v6 uses passthrough, v4 sets the tag in the QDIO header.
2631 */
df8a39de 2632 if (skb_vlan_tag_present(skb)) {
213298f8
FB		 2633 if ((ipv == 4) || (card->info.type == QETH_CARD_TYPE_IQD))
2634 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_VLAN_FRAME;
2635 else
2636 hdr->hdr.l3.ext_flags = QETH_HDR_EXT_INCLUDE_VLAN_TAG;
df8a39de 2637 hdr->hdr.l3.vlan_id = skb_vlan_tag_get(skb);
4a71df50
FB		 2638 }
2639
2640 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
1d36cb47
FB		 2641
2642 rcu_read_lock();
69cce1d1 2643 dst = skb_dst(skb);
4a71df50 2644 if (ipv == 4) {
87e7597b
DM		 2645 struct rtable *rt = (struct rtable *) dst;
2646 __be32 *pkey = &ip_hdr(skb)->daddr;
2647
2648 if (rt->rt_gateway)
2649 pkey = &rt->rt_gateway;
2650
4a71df50
FB		 2651 /* IPv4 */
2652 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags4(cast_type);
2653 memset(hdr->hdr.l3.dest_addr, 0, 12);
87e7597b 2654 *((__be32 *) (&hdr->hdr.l3.dest_addr[12])) = *pkey;
4a71df50 2655 } else if (ipv == 6) {
87e7597b
DM		 2656 struct rt6_info *rt = (struct rt6_info *) dst;
2657 struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
2658
2659 if (!ipv6_addr_any(&rt->rt6i_gateway))
2660 pkey = &rt->rt6i_gateway;
2661
4a71df50
FB		 2662 /* IPv6 */
2663 hdr->hdr.l3.flags = qeth_l3_get_qeth_hdr_flags6(cast_type);
2664 if (card->info.type == QETH_CARD_TYPE_IQD)
2665 hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU;
87e7597b 2666 memcpy(hdr->hdr.l3.dest_addr, pkey, 16);
4a71df50 2667 } else {
1abd2296 2668 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4a71df50
FB		 2669 skb->dev->broadcast, 6)) {
2670 /* broadcast? */
2671 hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
2672 QETH_HDR_PASSTHRU;
2673 } else {
2674 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
2675 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
2676 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
2677 }
2678 }
1d36cb47 2679 rcu_read_unlock();
4a71df50
FB		 2680}
2681
f6b85b6c
FB		 2682static inline void qeth_l3_hdr_csum(struct qeth_card *card,
2683 struct qeth_hdr *hdr, struct sk_buff *skb)
2684{
2685 struct iphdr *iph = ip_hdr(skb);
2686
2687 /* tcph->check contains already the pseudo hdr checksum
2688 * so just set the header flags
2689 */
2690 if (iph->protocol == IPPROTO_UDP)
2691 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP;
16c0f936
FB		 2692 hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ |
2693 QETH_HDR_EXT_CSUM_HDR_REQ;
2694 iph->check = 0;
f6b85b6c
FB		 2695 if (card->options.performance_stats)
2696 card->perf_stats.tx_csum++;
2697}
2698
64ef8957
FB		 2699static void qeth_tso_fill_header(struct qeth_card *card,
2700 struct qeth_hdr *qhdr, struct sk_buff *skb)
2701{
2702 struct qeth_hdr_tso *hdr = (struct qeth_hdr_tso *)qhdr;
2703 struct tcphdr *tcph = tcp_hdr(skb);
2704 struct iphdr *iph = ip_hdr(skb);
2705 struct ipv6hdr *ip6h = ipv6_hdr(skb);
2706
2707 /*fix header to TSO values ...*/
2708 hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
8fa9208e 2709 hdr->hdr.hdr.l3.length = skb->len - sizeof(struct qeth_hdr_tso);
64ef8957
FB		 2710 /*set values which are fix for the first approach ...*/
2711 hdr->ext.hdr_tot_len = (__u16) sizeof(struct qeth_hdr_ext_tso);
2712 hdr->ext.imb_hdr_no = 1;
2713 hdr->ext.hdr_type = 1;
2714 hdr->ext.hdr_version = 1;
2715 hdr->ext.hdr_len = 28;
2716 /*insert non-fix values */
2717 hdr->ext.mss = skb_shinfo(skb)->gso_size;
2718 hdr->ext.dg_hdr_len = (__u16)(iph->ihl*4 + tcph->doff*4);
2719 hdr->ext.payload_len = (__u16)(skb->len - hdr->ext.dg_hdr_len -
2720 sizeof(struct qeth_hdr_tso));
2721 tcph->check = 0;
2722 if (skb->protocol == ETH_P_IPV6) {
2723 ip6h->payload_len = 0;
2724 tcph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
2725 0, IPPROTO_TCP, 0);
2726 } else {
2727 /*OSA want us to set these values ...*/
2728 tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
2729 0, IPPROTO_TCP, 0);
2730 iph->tot_len = 0;
2731 iph->check = 0;
2732 }
2733}
2734
2863c613 2735/**
41aeed58
EC		 2736 * qeth_l3_get_elements_no_tso() - find number of SBALEs for skb data for tso
2737 * @card: qeth card structure, to check max. elems.
2738 * @skb: SKB address
2739 * @extra_elems: extra elems needed, to check against max.
2863c613
EC		 2740 *
2741 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
2742 * skb data, including linear part and fragments, but excluding TCP header.
2743 * (Exclusion of TCP header distinguishes it from qeth_get_elements_no().)
2744 * Checks if the result plus extra_elems fits under the limit for the card.
2745 * Returns 0 if it does not.
2746 * Note: extra_elems is not included in the returned result.
2747 */
41aeed58 2748static int qeth_l3_get_elements_no_tso(struct qeth_card *card,
2863c613 2749 struct sk_buff *skb, int extra_elems)
c3b4a740 2750{
2863c613
EC		 2751 addr_t tcpdptr = (addr_t)tcp_hdr(skb) + tcp_hdrlen(skb);
2752 int elements = qeth_get_elements_for_range(
2753 tcpdptr,
2754 (addr_t)skb->data + skb_headlen(skb)) +
8f43fb00 2755 qeth_get_elements_for_frags(skb);
271648b4 2756
2863c613
EC		 2757 if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
2758 QETH_DBF_MESSAGE(2,
2759 "Invalid size of TSO IP packet (Number=%d / Length=%d). Discarded.\n",
2760 elements + extra_elems, skb->len);
2761 return 0;
2762 }
c3b4a740
FB		 2763 return elements;
2764}
2765
4a71df50
FB		 2766static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
2767{
2768 int rc;
2769 u16 *tag;
2770 struct qeth_hdr *hdr = NULL;
2863c613
EC		 2771 int hdr_elements = 0;
2772 int elements;
509e2562 2773 struct qeth_card *card = dev->ml_priv;
4a71df50
FB		 2774 struct sk_buff *new_skb = NULL;
2775 int ipv = qeth_get_ip_version(skb);
ce73e10e 2776 int cast_type = qeth_l3_get_cast_type(card, skb);
290b8348
SR		 2777 struct qeth_qdio_out_q *queue =
2778 card->qdio.out_qs[card->qdio.do_prio_queueing
2779 || (cast_type && card->info.is_multicast_different) ?
2780 qeth_get_priority_queue(card, skb, ipv, cast_type) :
2781 card->qdio.default_out_queue];
4a71df50 2782 int tx_bytes = skb->len;
41aeed58 2783 bool use_tso;
683d718a 2784 int data_offset = -1;
64ef8957 2785 int nr_frags;
4a71df50 2786
b3332930
FB		 2787 if (((card->info.type == QETH_CARD_TYPE_IQD) &&
2788 (((card->options.cq != QETH_CQ_ENABLED) && !ipv) ||
2789 ((card->options.cq == QETH_CQ_ENABLED) &&
2790 (skb->protocol != ETH_P_AF_IUCV)))) ||
2791 card->options.sniffer)
4a71df50
FB		 2792 goto tx_drop;
2793
2794 if ((card->state != CARD_STATE_UP) || !card->lan_online) {
2795 card->stats.tx_carrier_errors++;
2796 goto tx_drop;
2797 }
2798
2799 if ((cast_type == RTN_BROADCAST) &&
2800 (card->info.broadcast_capable == 0))
2801 goto tx_drop;
2802
2803 if (card->options.performance_stats) {
2804 card->perf_stats.outbound_cnt++;
2805 card->perf_stats.outbound_start_time = qeth_get_micros();
2806 }
2807
41aeed58
EC		 2808 /* Ignore segment size from skb_is_gso(), 1 page is always used. */
2809 use_tso = skb_is_gso(skb) &&
2810 (qeth_get_ip_protocol(skb) == IPPROTO_TCP) && (ipv == 4);
683d718a 2811
41aeed58
EC		 2812 if ((card->info.type == QETH_CARD_TYPE_IQD) &&
2813 !skb_is_nonlinear(skb)) {
683d718a 2814 new_skb = skb;
b3332930
FB		 2815 if (new_skb->protocol == ETH_P_AF_IUCV)
2816 data_offset = 0;
2817 else
2818 data_offset = ETH_HLEN;
683d718a
FB		 2819 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
2820 if (!hdr)
2821 goto tx_drop;
2863c613 2822 hdr_elements++;
683d718a
FB		 2823 } else {
2824 /* create a clone with writeable headroom */
2825 new_skb = skb_realloc_headroom(skb, sizeof(struct qeth_hdr_tso)
2826 + VLAN_HLEN);
2827 if (!new_skb)
2828 goto tx_drop;
2829 }
4a71df50
FB		 2830
2831 if (card->info.type == QETH_CARD_TYPE_IQD) {
683d718a
FB		 2832 if (data_offset < 0)
2833 skb_pull(new_skb, ETH_HLEN);
4a71df50 2834 } else {
21fde749 2835 if (ipv == 4) {
1abd2296 2836 skb_pull(new_skb, ETH_HLEN);
4a71df50
FB		 2837 }
2838
df8a39de 2839 if (ipv != 4 && skb_vlan_tag_present(new_skb)) {
4a71df50
FB		 2840 skb_push(new_skb, VLAN_HLEN);
2841 skb_copy_to_linear_data(new_skb, new_skb->data + 4, 4);
2842 skb_copy_to_linear_data_offset(new_skb, 4,
2843 new_skb->data + 8, 4);
2844 skb_copy_to_linear_data_offset(new_skb, 8,
2845 new_skb->data + 12, 4);
2846 tag = (u16 *)(new_skb->data + 12);
2847 *tag = __constant_htons(ETH_P_8021Q);
df8a39de 2848 *(tag + 1) = htons(skb_vlan_tag_get(new_skb));
4a71df50
FB		 2849 }
2850 }
2851
2852 netif_stop_queue(dev);
2853
4a71df50 2854 /* fix hardware limitation: as long as we do not have sbal
64ef8957 2855 * chaining we can not send long frag lists
4a71df50 2856 */
41aeed58
EC		 2857 if ((card->info.type != QETH_CARD_TYPE_IQD) &&
2858 ((use_tso && !qeth_l3_get_elements_no_tso(card, new_skb, 1)) ||
2859 (!use_tso && !qeth_get_elements_no(card, new_skb, 0)))) {
6059c905
EC		 2860 int lin_rc = skb_linearize(new_skb);
2861
2862 if (card->options.performance_stats) {
2863 if (lin_rc)
2864 card->perf_stats.tx_linfail++;
2865 else
2866 card->perf_stats.tx_lin++;
2867 }
2868 if (lin_rc)
41aeed58 2869 goto tx_drop;
64ef8957 2870 }
4a71df50 2871
41aeed58 2872 if (use_tso) {
4a71df50
FB		 2873 hdr = (struct qeth_hdr *)skb_push(new_skb,
2874 sizeof(struct qeth_hdr_tso));
2875 memset(hdr, 0, sizeof(struct qeth_hdr_tso));
2876 qeth_l3_fill_header(card, hdr, new_skb, ipv, cast_type);
2877 qeth_tso_fill_header(card, hdr, new_skb);
2863c613 2878 hdr_elements++;
4a71df50 2879 } else {
683d718a
FB		 2880 if (data_offset < 0) {
2881 hdr = (struct qeth_hdr *)skb_push(new_skb,
4a71df50 2882 sizeof(struct qeth_hdr));
683d718a
FB		 2883 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2884 cast_type);
2885 } else {
b3332930
FB		 2886 if (new_skb->protocol == ETH_P_AF_IUCV)
2887 qeth_l3_fill_af_iucv_hdr(card, hdr, new_skb);
2888 else {
2889 qeth_l3_fill_header(card, hdr, new_skb, ipv,
2890 cast_type);
2891 hdr->hdr.l3.length = new_skb->len - data_offset;
2892 }
683d718a 2893 }
f6b85b6c
FB		 2894
2895 if (skb->ip_summed == CHECKSUM_PARTIAL)
2896 qeth_l3_hdr_csum(card, hdr, new_skb);
4a71df50
FB		 2897 }
2898
41aeed58
EC		 2899 elements = use_tso ?
2900 qeth_l3_get_elements_no_tso(card, new_skb, hdr_elements) :
2901 qeth_get_elements_no(card, new_skb, hdr_elements);
2863c613 2902 if (!elements) {
64ef8957
FB		 2903 if (data_offset >= 0)
2904 kmem_cache_free(qeth_core_header_cache, hdr);
2905 goto tx_drop;
f61a0d05 2906 }
2863c613 2907 elements += hdr_elements;
4a71df50 2908
51aa165c
FB		 2909 if (card->info.type != QETH_CARD_TYPE_IQD) {
2910 int len;
41aeed58 2911 if (use_tso)
51aa165c 2912 len = ((unsigned long)tcp_hdr(new_skb) +
2863c613 2913 tcp_hdrlen(new_skb)) -
51aa165c
FB		 2914 (unsigned long)new_skb->data;
2915 else
2916 len = sizeof(struct qeth_hdr_layer3);
2917
d4ae1f5e 2918 if (qeth_hdr_chk_and_bounce(new_skb, &hdr, len))
51aa165c 2919 goto tx_drop;
2863c613 2920 rc = qeth_do_send_packet(card, queue, new_skb, hdr, elements);
51aa165c 2921 } else
4a71df50 2922 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
2863c613 2923 elements, data_offset, 0);
4a71df50
FB		 2924
2925 if (!rc) {
2926 card->stats.tx_packets++;
2927 card->stats.tx_bytes += tx_bytes;
2928 if (new_skb != skb)
2929 dev_kfree_skb_any(skb);
2930 if (card->options.performance_stats) {
2863c613 2931 nr_frags = skb_shinfo(new_skb)->nr_frags;
41aeed58 2932 if (use_tso) {
4a71df50
FB		 2933 card->perf_stats.large_send_bytes += tx_bytes;
2934 card->perf_stats.large_send_cnt++;
2935 }
64ef8957 2936 if (nr_frags) {
4a71df50
FB		 2937 card->perf_stats.sg_skbs_sent++;
2938 /* nr_frags + skb->data */
64ef8957 2939 card->perf_stats.sg_frags_sent += nr_frags + 1;
4a71df50
FB		 2940 }
2941 }
ec634fe3 2942 rc = NETDEV_TX_OK;
4a71df50 2943 } else {
683d718a
FB		 2944 if (data_offset >= 0)
2945 kmem_cache_free(qeth_core_header_cache, hdr);
2946
4a71df50
FB		 2947 if (rc == -EBUSY) {
2948 if (new_skb != skb)
2949 dev_kfree_skb_any(new_skb);
2950 return NETDEV_TX_BUSY;
2951 } else
2952 goto tx_drop;
2953 }
2954
2955 netif_wake_queue(dev);
2956 if (card->options.performance_stats)
2957 card->perf_stats.outbound_time += qeth_get_micros() -
2958 card->perf_stats.outbound_start_time;
2959 return rc;
2960
2961tx_drop:
2962 card->stats.tx_dropped++;
2963 card->stats.tx_errors++;
2964 if ((new_skb != skb) && new_skb)
2965 dev_kfree_skb_any(new_skb);
2966 dev_kfree_skb_any(skb);
d0ec0f54 2967 netif_wake_queue(dev);
4a71df50
FB		 2968 return NETDEV_TX_OK;
2969}
2970
39423440 2971static int __qeth_l3_open(struct net_device *dev)
4a71df50 2972{
509e2562 2973 struct qeth_card *card = dev->ml_priv;
a1c3ed4c 2974 int rc = 0;
4a71df50 2975
847a50fd 2976 QETH_CARD_TEXT(card, 4, "qethopen");
39423440
UB		 2977 if (card->state == CARD_STATE_UP)
2978 return rc;
4a71df50
FB		 2979 if (card->state != CARD_STATE_SOFTSETUP)
2980 return -ENODEV;
2981 card->data.state = CH_STATE_UP;
2982 card->state = CARD_STATE_UP;
4a71df50
FB		 2983 netif_start_queue(dev);
2984
a1c3ed4c
FB		 2985 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) {
2986 napi_enable(&card->napi);
2987 napi_schedule(&card->napi);
2988 } else
2989 rc = -EIO;
2990 return rc;
4a71df50
FB		 2991}
2992
39423440
UB		 2993static int qeth_l3_open(struct net_device *dev)
2994{
2995 struct qeth_card *card = dev->ml_priv;
2996
2997 QETH_CARD_TEXT(card, 5, "qethope_");
2998 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) {
2999 QETH_CARD_TEXT(card, 3, "openREC");
3000 return -ERESTARTSYS;
3001 }
3002 return __qeth_l3_open(dev);
3003}
3004
4a71df50
FB		 3005static int qeth_l3_stop(struct net_device *dev)
3006{
509e2562 3007 struct qeth_card *card = dev->ml_priv;
4a71df50 3008
847a50fd 3009 QETH_CARD_TEXT(card, 4, "qethstop");
4a71df50 3010 netif_tx_disable(dev);
a1c3ed4c 3011 if (card->state == CARD_STATE_UP) {
4a71df50 3012 card->state = CARD_STATE_SOFTSETUP;
a1c3ed4c
FB		 3013 napi_disable(&card->napi);
3014 }
4a71df50
FB		 3015 return 0;
3016}
3017
0fc0b732 3018static const struct ethtool_ops qeth_l3_ethtool_ops = {
4a71df50 3019 .get_link = ethtool_op_get_link,
4a71df50
FB		 3020 .get_strings = qeth_core_get_strings,
3021 .get_ethtool_stats = qeth_core_get_ethtool_stats,
df8b4ec8 3022 .get_sset_count = qeth_core_get_sset_count,
4a71df50 3023 .get_drvinfo = qeth_core_get_drvinfo,
3f9975aa 3024 .get_settings = qeth_core_ethtool_get_settings,
4a71df50
FB		 3025};
3026
3027/*
3028 * we need NOARP for IPv4 but we want neighbor solicitation for IPv6. Setting
3029 * NOARP on the netdevice is no option because it also turns off neighbor
3030 * solicitation. For IPv4 we install a neighbor_setup function. We don't want
3031 * arp resolution but we want the hard header (packet socket will work
3032 * e.g. tcpdump)
3033 */
3034static int qeth_l3_neigh_setup_noarp(struct neighbour *n)
3035{
3036 n->nud_state = NUD_NOARP;
3037 memcpy(n->ha, "FAKELL", 6);
3038 n->output = n->ops->connected_output;
3039 return 0;
3040}
3041
3042static int
3043qeth_l3_neigh_setup(struct net_device *dev, struct neigh_parms *np)
3044{
3045 if (np->tbl->family == AF_INET)
3046 np->neigh_setup = qeth_l3_neigh_setup_noarp;
3047
3048 return 0;
3049}
3050
3d58cefd 3051static const struct net_device_ops qeth_l3_netdev_ops = {
8403b13c
FB		 3052 .ndo_open = qeth_l3_open,
3053 .ndo_stop = qeth_l3_stop,
3054 .ndo_get_stats = qeth_get_stats,
3055 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3056 .ndo_validate_addr = eth_validate_addr,
afc4b13d 3057 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
7ff0bcf6
JP		 3058 .ndo_do_ioctl = qeth_l3_do_ioctl,
3059 .ndo_change_mtu = qeth_change_mtu,
8f43fb00
TR		 3060 .ndo_fix_features = qeth_fix_features,
3061 .ndo_set_features = qeth_set_features,
8403b13c
FB		 3062 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3063 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
7ff0bcf6 3064 .ndo_tx_timeout = qeth_tx_timeout,
8403b13c
FB		 3065};
3066
3d58cefd
FB		 3067static const struct net_device_ops qeth_l3_osa_netdev_ops = {
3068 .ndo_open = qeth_l3_open,
3069 .ndo_stop = qeth_l3_stop,
3070 .ndo_get_stats = qeth_get_stats,
3071 .ndo_start_xmit = qeth_l3_hard_start_xmit,
3072 .ndo_validate_addr = eth_validate_addr,
afc4b13d 3073 .ndo_set_rx_mode = qeth_l3_set_multicast_list,
7ff0bcf6
JP		 3074 .ndo_do_ioctl = qeth_l3_do_ioctl,
3075 .ndo_change_mtu = qeth_change_mtu,
8f43fb00
TR		 3076 .ndo_fix_features = qeth_fix_features,
3077 .ndo_set_features = qeth_set_features,
3d58cefd
FB		 3078 .ndo_vlan_rx_add_vid = qeth_l3_vlan_rx_add_vid,
3079 .ndo_vlan_rx_kill_vid = qeth_l3_vlan_rx_kill_vid,
7ff0bcf6 3080 .ndo_tx_timeout = qeth_tx_timeout,
3d58cefd
FB		 3081 .ndo_neigh_setup = qeth_l3_neigh_setup,
3082};
3083
4a71df50
FB		 3084static int qeth_l3_setup_netdev(struct qeth_card *card)
3085{
1aec42bc
TR		 3086 int rc;
3087
5113fec0
UB		 3088 if (card->info.type == QETH_CARD_TYPE_OSD ||
3089 card->info.type == QETH_CARD_TYPE_OSX) {
4a71df50
FB		 3090 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3091 (card->info.link_type == QETH_LINK_TYPE_HSTR)) {
1abd2296
PG		 3092 pr_info("qeth_l3: ignoring TR device\n");
3093 return -ENODEV;
4a71df50
FB		 3094 } else {
3095 card->dev = alloc_etherdev(0);
3096 if (!card->dev)
3097 return -ENODEV;
3d58cefd 3098 card->dev->netdev_ops = &qeth_l3_osa_netdev_ops;
4a71df50
FB		 3099
3100 /*IPv6 address autoconfiguration stuff*/
3101 qeth_l3_get_unique_id(card);
3102 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
3103 card->dev->dev_id = card->info.unique_id &
3104 0xffff;
c5e631a8
FB		 3105 if (!card->info.guestlan) {
3106 card->dev->hw_features = NETIF_F_SG |
3107 NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
3108 NETIF_F_TSO;
8f43fb00 3109 card->dev->features = NETIF_F_SG;
c5e631a8 3110 }
4a71df50
FB		 3111 }
3112 } else if (card->info.type == QETH_CARD_TYPE_IQD) {
c835a677
TG		 3113 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN,
3114 ether_setup);
4a71df50
FB		 3115 if (!card->dev)
3116 return -ENODEV;
3117 card->dev->flags |= IFF_NOARP;
3d58cefd 3118 card->dev->netdev_ops = &qeth_l3_netdev_ops;
1aec42bc
TR		 3119 rc = qeth_l3_iqd_read_initial_mac(card);
3120 if (rc)
3121 return rc;
b3332930
FB		 3122 if (card->options.hsuid[0])
3123 memcpy(card->dev->perm_addr, card->options.hsuid, 9);
4a71df50
FB		 3124 } else
3125 return -ENODEV;
3126
509e2562 3127 card->dev->ml_priv = card;
4a71df50 3128 card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
4a71df50 3129 card->dev->mtu = card->info.initial_mtu;
7ad24ea4 3130 card->dev->ethtool_ops = &qeth_l3_ethtool_ops;
f646968f
PM		 3131 card->dev->features |= NETIF_F_HW_VLAN_CTAG_TX |
3132 NETIF_F_HW_VLAN_CTAG_RX |
3133 NETIF_F_HW_VLAN_CTAG_FILTER;
02875878 3134 netif_keep_dst(card->dev);
8bad55f8
EC		 3135 card->dev->gso_max_size = (QETH_MAX_BUFFER_ELEMENTS(card) - 1) *
3136 PAGE_SIZE;
3137 card->dev->gso_max_segs = (QETH_MAX_BUFFER_ELEMENTS(card) - 1);
4a71df50
FB		 3138
3139 SET_NETDEV_DEV(card->dev, &card->gdev->dev);
a1c3ed4c 3140 netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
e5ebe632 3141 netif_carrier_off(card->dev);
4a71df50
FB		 3142 return register_netdev(card->dev);
3143}
3144
4a71df50
FB		 3145static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
3146{
3147 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3148
3149 qeth_l3_create_device_attributes(&gdev->dev);
3150 card->options.layer2 = 0;
1da74b1c 3151 card->info.hwtrap = 0;
4a71df50
FB		 3152 return 0;
3153}
3154
3155static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
3156{
3157 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3158
9dc48ccc
UB		 3159 qeth_l3_remove_device_attributes(&cgdev->dev);
3160
f2148565 3161 qeth_set_allowed_threads(card, 0, 1);
4a71df50
FB		 3162 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3163
70919e23 3164 if (cgdev->state == CCWGROUP_ONLINE)
4a71df50 3165 qeth_l3_set_offline(cgdev);
4a71df50
FB		 3166
3167 if (card->dev) {
3168 unregister_netdev(card->dev);
3169 card->dev = NULL;
3170 }
3171
5f78e29c 3172 qeth_l3_clear_ip_htable(card, 0);
4a71df50
FB		 3173 qeth_l3_clear_ipato_list(card);
3174 return;
3175}
3176
3177static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
3178{
3179 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3180 int rc = 0;
3181 enum qeth_card_states recover_flag;
3182
9dc48ccc 3183 mutex_lock(&card->discipline_mutex);
c4949f07 3184 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3185 QETH_DBF_TEXT(SETUP, 2, "setonlin");
3186 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4a71df50 3187
4a71df50 3188 recover_flag = card->state;
4a71df50
FB		 3189 rc = qeth_core_hardsetup_card(card);
3190 if (rc) {
1aec42bc 3191 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
aa909224 3192 rc = -ENODEV;
4a71df50
FB		 3193 goto out_remove;
3194 }
3195
aa909224
UB		 3196 if (!card->dev && qeth_l3_setup_netdev(card)) {
3197 rc = -ENODEV;
4a71df50 3198 goto out_remove;
aa909224 3199 }
4a71df50 3200
1da74b1c
FB		 3201 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) {
3202 if (card->info.hwtrap &&
3203 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM))
3204 card->info.hwtrap = 0;
3205 } else
3206 card->info.hwtrap = 0;
3207
4a71df50 3208 card->state = CARD_STATE_HARDSETUP;
a1c3ed4c 3209 memset(&card->rx, 0, sizeof(struct qeth_rx));
4a71df50
FB		 3210 qeth_print_status_message(card);
3211
3212 /* softsetup */
d11ba0c4 3213 QETH_DBF_TEXT(SETUP, 2, "softsetp");
4a71df50
FB		 3214
3215 rc = qeth_send_startlan(card);
3216 if (rc) {
d11ba0c4 3217 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4a71df50 3218 if (rc == 0xe080) {
74eacdb9
FB		 3219 dev_warn(&card->gdev->dev,
3220 "The LAN is offline\n");
4a71df50 3221 card->lan_online = 0;
2b6203bb 3222 goto contin;
4a71df50 3223 }
aa909224 3224 rc = -ENODEV;
f2148565 3225 goto out_remove;
4a71df50
FB		 3226 } else
3227 card->lan_online = 1;
4a71df50 3228
2b6203bb 3229contin:
4a71df50
FB		 3230 rc = qeth_l3_setadapter_parms(card);
3231 if (rc)
1aec42bc 3232 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc);
76b11f8e
UB		 3233 if (!card->options.sniffer) {
3234 rc = qeth_l3_start_ipassists(card);
0f54761d 3235 if (rc) {
76b11f8e 3236 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
0f54761d
SR		 3237 goto out_remove;
3238 }
76b11f8e
UB		 3239 rc = qeth_l3_setrouting_v4(card);
3240 if (rc)
1aec42bc 3241 QETH_DBF_TEXT_(SETUP, 2, "4err%04x", rc);
76b11f8e
UB		 3242 rc = qeth_l3_setrouting_v6(card);
3243 if (rc)
1aec42bc 3244 QETH_DBF_TEXT_(SETUP, 2, "5err%04x", rc);
76b11f8e 3245 }
4a71df50
FB		 3246 netif_tx_disable(card->dev);
3247
3248 rc = qeth_init_qdio_queues(card);
3249 if (rc) {
d11ba0c4 3250 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
aa909224 3251 rc = -ENODEV;
4a71df50
FB		 3252 goto out_remove;
3253 }
3254 card->state = CARD_STATE_SOFTSETUP;
4a71df50
FB		 3255
3256 qeth_set_allowed_threads(card, 0xffffffff, 0);
5f78e29c 3257 qeth_l3_recover_ip(card);
2b6203bb
UB		 3258 if (card->lan_online)
3259 netif_carrier_on(card->dev);
3260 else
3261 netif_carrier_off(card->dev);
8af7c5ae 3262 if (recover_flag == CARD_STATE_RECOVER) {
4763b0a0 3263 rtnl_lock();
8af7c5ae 3264 if (recovery_mode)
39423440 3265 __qeth_l3_open(card->dev);
4763b0a0 3266 else
8af7c5ae 3267 dev_open(card->dev);
8af7c5ae 3268 qeth_l3_set_multicast_list(card->dev);
4763b0a0 3269 rtnl_unlock();
4a71df50 3270 }
82f77cf9 3271 qeth_trace_features(card);
4a71df50
FB		 3272 /* let user_space know that device is online */
3273 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3274 mutex_unlock(&card->conf_mutex);
9dc48ccc 3275 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3276 return 0;
3277out_remove:
4a71df50
FB		 3278 qeth_l3_stop_card(card, 0);
3279 ccw_device_set_offline(CARD_DDEV(card));
3280 ccw_device_set_offline(CARD_WDEV(card));
3281 ccw_device_set_offline(CARD_RDEV(card));
22ae2790 3282 qdio_free(CARD_DDEV(card));
4a71df50
FB		 3283 if (recover_flag == CARD_STATE_RECOVER)
3284 card->state = CARD_STATE_RECOVER;
3285 else
3286 card->state = CARD_STATE_DOWN;
c4949f07 3287 mutex_unlock(&card->conf_mutex);
9dc48ccc 3288 mutex_unlock(&card->discipline_mutex);
aa909224 3289 return rc;
4a71df50
FB		 3290}
3291
3292static int qeth_l3_set_online(struct ccwgroup_device *gdev)
3293{
3294 return __qeth_l3_set_online(gdev, 0);
3295}
3296
3297static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
3298 int recovery_mode)
3299{
3300 struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
3301 int rc = 0, rc2 = 0, rc3 = 0;
3302 enum qeth_card_states recover_flag;
3303
9dc48ccc 3304 mutex_lock(&card->discipline_mutex);
c4949f07 3305 mutex_lock(&card->conf_mutex);
d11ba0c4
PT		 3306 QETH_DBF_TEXT(SETUP, 3, "setoffl");
3307 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *));
4a71df50
FB		 3308
3309 if (card->dev && netif_carrier_ok(card->dev))
3310 netif_carrier_off(card->dev);
3311 recover_flag = card->state;
1da74b1c
FB		 3312 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) {
3313 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
3314 card->info.hwtrap = 1;
3315 }
0f5623c9 3316 qeth_l3_stop_card(card, recovery_mode);
72861ae7
EL		 3317 if ((card->options.cq == QETH_CQ_ENABLED) && card->dev) {
3318 rtnl_lock();
3319 call_netdevice_notifiers(NETDEV_REBOOT, card->dev);
3320 rtnl_unlock();
3321 }
4a71df50
FB		 3322 rc = ccw_device_set_offline(CARD_DDEV(card));
3323 rc2 = ccw_device_set_offline(CARD_WDEV(card));
3324 rc3 = ccw_device_set_offline(CARD_RDEV(card));
3325 if (!rc)
3326 rc = (rc2) ? rc2 : rc3;
3327 if (rc)
d11ba0c4 3328 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
22ae2790 3329 qdio_free(CARD_DDEV(card));
4a71df50
FB		 3330 if (recover_flag == CARD_STATE_UP)
3331 card->state = CARD_STATE_RECOVER;
3332 /* let user_space know that device is offline */
3333 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE);
c4949f07 3334 mutex_unlock(&card->conf_mutex);
9dc48ccc 3335 mutex_unlock(&card->discipline_mutex);
4a71df50
FB		 3336 return 0;
3337}
3338
3339static int qeth_l3_set_offline(struct ccwgroup_device *cgdev)
3340{
3341 return __qeth_l3_set_offline(cgdev, 0);
3342}
3343
3344static int qeth_l3_recover(void *ptr)
3345{
3346 struct qeth_card *card;
3347 int rc = 0;
3348
3349 card = (struct qeth_card *) ptr;
847a50fd
CO		 3350 QETH_CARD_TEXT(card, 2, "recover1");
3351 QETH_CARD_HEX(card, 2, &card, sizeof(void *));
4a71df50
FB		 3352 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
3353 return 0;
847a50fd 3354 QETH_CARD_TEXT(card, 2, "recover2");
74eacdb9
FB		 3355 dev_warn(&card->gdev->dev,
3356 "A recovery process has been started for the device\n");
65d8013c 3357 qeth_set_recovery_task(card);
4a71df50
FB		 3358 __qeth_l3_set_offline(card->gdev, 1);
3359 rc = __qeth_l3_set_online(card->gdev, 1);
4a71df50 3360 if (!rc)
74eacdb9
FB		 3361 dev_info(&card->gdev->dev,
3362 "Device successfully recovered!\n");
28a7e4c9 3363 else {
0f54761d
SR		 3364 qeth_close_dev(card);
3365 dev_warn(&card->gdev->dev, "The qeth device driver "
2efaf5ff 3366 "failed to recover an error on the device\n");
28a7e4c9 3367 }
65d8013c 3368 qeth_clear_recovery_task(card);
a1c3ed4c
FB		 3369 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
3370 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
4a71df50
FB		 3371 return 0;
3372}
3373
3374static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
3375{
3376 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
f78ac2bb 3377 qeth_set_allowed_threads(card, 0, 1);
1da74b1c
FB		 3378 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
3379 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
4a71df50
FB		 3380 qeth_qdio_clear_card(card, 0);
3381 qeth_clear_qdio_buffers(card);
22ae2790 3382 qdio_free(CARD_DDEV(card));
4a71df50
FB		 3383}
3384
bbcfcdc8
FB		 3385static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
3386{
3387 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3388
3389 if (card->dev)
3390 netif_device_detach(card->dev);
3391 qeth_set_allowed_threads(card, 0, 1);
3392 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
3393 if (gdev->state == CCWGROUP_OFFLINE)
3394 return 0;
3395 if (card->state == CARD_STATE_UP) {
1da74b1c
FB		 3396 if (card->info.hwtrap)
3397 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
bbcfcdc8
FB		 3398 __qeth_l3_set_offline(card->gdev, 1);
3399 } else
3400 __qeth_l3_set_offline(card->gdev, 0);
3401 return 0;
3402}
3403
3404static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
3405{
3406 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
3407 int rc = 0;
3408
3409 if (gdev->state == CCWGROUP_OFFLINE)
3410 goto out;
3411
3412 if (card->state == CARD_STATE_RECOVER) {
3413 rc = __qeth_l3_set_online(card->gdev, 1);
3414 if (rc) {
869da90b
UB		 3415 rtnl_lock();
3416 dev_close(card->dev);
3417 rtnl_unlock();
bbcfcdc8
FB		 3418 }
3419 } else
3420 rc = __qeth_l3_set_online(card->gdev, 0);
3421out:
3422 qeth_set_allowed_threads(card, 0xffffffff, 0);
3423 if (card->dev)
3424 netif_device_attach(card->dev);
3425 if (rc)
3426 dev_warn(&card->gdev->dev, "The qeth device driver "
3427 "failed to recover an error on the device\n");
3428 return rc;
3429}
3430
c044dc21
EC		 3431/* Returns zero if the command is successfully "consumed" */
3432static int qeth_l3_control_event(struct qeth_card *card,
3433 struct qeth_ipa_cmd *cmd)
3434{
3435 return 1;
3436}
3437
c041f2d4
SO		 3438struct qeth_discipline qeth_l3_discipline = {
3439 .start_poll = qeth_qdio_start_poll,
3440 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
3441 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
3442 .recover = qeth_l3_recover,
3443 .setup = qeth_l3_probe_device,
4a71df50
FB		 3444 .remove = qeth_l3_remove_device,
3445 .set_online = qeth_l3_set_online,
3446 .set_offline = qeth_l3_set_offline,
3447 .shutdown = qeth_l3_shutdown,
bbcfcdc8
FB		 3448 .freeze = qeth_l3_pm_suspend,
3449 .thaw = qeth_l3_pm_resume,
3450 .restore = qeth_l3_pm_resume,
c044dc21 3451 .control_event_handler = qeth_l3_control_event,
4a71df50 3452};
c041f2d4 3453EXPORT_SYMBOL_GPL(qeth_l3_discipline);
4a71df50
FB		 3454
3455static int qeth_l3_ip_event(struct notifier_block *this,
76fef2b6 3456 unsigned long event, void *ptr)
4a71df50 3457{
5f78e29c 3458
4a71df50
FB		 3459 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3460 struct net_device *dev = (struct net_device *)ifa->ifa_dev->dev;
3461 struct qeth_ipaddr *addr;
3462 struct qeth_card *card;
3463
c346dca1 3464 if (dev_net(dev) != &init_net)
76fef2b6
DM		 3465 return NOTIFY_DONE;
3466
4a71df50
FB		 3467 card = qeth_l3_get_card_from_dev(dev);
3468 if (!card)
3469 return NOTIFY_DONE;
6d8823db 3470 QETH_CARD_TEXT(card, 3, "ipevent");
4a71df50
FB		 3471
3472 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
5f78e29c 3473 if (addr) {
4a71df50
FB		 3474 addr->u.a4.addr = ifa->ifa_address;
3475 addr->u.a4.mask = ifa->ifa_mask;
3476 addr->type = QETH_IP_TYPE_NORMAL;
3477 } else
5f78e29c 3478 return NOTIFY_DONE;
4a71df50
FB		 3479
3480 switch (event) {
3481 case NETDEV_UP:
5f78e29c
LD		 3482 spin_lock_bh(&card->ip_lock);
3483 qeth_l3_add_ip(card, addr);
3484 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 3485 break;
3486 case NETDEV_DOWN:
5f78e29c
LD		 3487 spin_lock_bh(&card->ip_lock);
3488 qeth_l3_delete_ip(card, addr);
3489 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 3490 break;
3491 }
5f78e29c
LD		 3492
3493 kfree(addr);
4a71df50
FB		 3494 return NOTIFY_DONE;
3495}
3496
3497static struct notifier_block qeth_l3_ip_notifier = {
3498 qeth_l3_ip_event,
3499 NULL,
3500};
3501
3502#ifdef CONFIG_QETH_IPV6
3503/**
3504 * IPv6 event handler
3505 */
3506static int qeth_l3_ip6_event(struct notifier_block *this,
76fef2b6 3507 unsigned long event, void *ptr)
4a71df50
FB		 3508{
3509 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
3510 struct net_device *dev = (struct net_device *)ifa->idev->dev;
3511 struct qeth_ipaddr *addr;
3512 struct qeth_card *card;
3513
4a71df50
FB		 3514 card = qeth_l3_get_card_from_dev(dev);
3515 if (!card)
3516 return NOTIFY_DONE;
847a50fd 3517 QETH_CARD_TEXT(card, 3, "ip6event");
4a71df50
FB		 3518 if (!qeth_is_supported(card, IPA_IPV6))
3519 return NOTIFY_DONE;
3520
3521 addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
5f78e29c 3522 if (addr) {
4a71df50
FB		 3523 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
3524 addr->u.a6.pfxlen = ifa->prefix_len;
3525 addr->type = QETH_IP_TYPE_NORMAL;
3526 } else
5f78e29c 3527 return NOTIFY_DONE;
4a71df50
FB		 3528
3529 switch (event) {
3530 case NETDEV_UP:
5f78e29c
LD		 3531 spin_lock_bh(&card->ip_lock);
3532 qeth_l3_add_ip(card, addr);
3533 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 3534 break;
3535 case NETDEV_DOWN:
5f78e29c
LD		 3536 spin_lock_bh(&card->ip_lock);
3537 qeth_l3_delete_ip(card, addr);
3538 spin_unlock_bh(&card->ip_lock);
4a71df50
FB		 3539 break;
3540 }
5f78e29c
LD		 3541
3542 kfree(addr);
4a71df50
FB		 3543 return NOTIFY_DONE;
3544}
3545
3546static struct notifier_block qeth_l3_ip6_notifier = {
3547 qeth_l3_ip6_event,
3548 NULL,
3549};
3550#endif
3551
3552static int qeth_l3_register_notifiers(void)
3553{
3554 int rc;
3555
847a50fd 3556 QETH_DBF_TEXT(SETUP, 5, "regnotif");
4a71df50
FB		 3557 rc = register_inetaddr_notifier(&qeth_l3_ip_notifier);
3558 if (rc)
3559 return rc;
3560#ifdef CONFIG_QETH_IPV6
3561 rc = register_inet6addr_notifier(&qeth_l3_ip6_notifier);
3562 if (rc) {
3563 unregister_inetaddr_notifier(&qeth_l3_ip_notifier);
3564 return rc;
3565 }
3566#else
baebc70a 3567 pr_warn("There is no IPv6 support for the layer 3 discipline\n");
4a71df50
FB		 3568#endif
3569 return 0;
3570}
3571
3572static void qeth_l3_unregister_notifiers(void)
3573{
3574
847a50fd 3575 QETH_DBF_TEXT(SETUP, 5, "unregnot");
18af5c17 3576 WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
4a71df50 3577#ifdef CONFIG_QETH_IPV6
18af5c17 3578 WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
4a71df50
FB		 3579#endif /* QETH_IPV6 */
3580}
3581
3582static int __init qeth_l3_init(void)
3583{
3584 int rc = 0;
3585
74eacdb9 3586 pr_info("register layer 3 discipline\n");
4a71df50
FB		 3587 rc = qeth_l3_register_notifiers();
3588 return rc;
3589}
3590
3591static void __exit qeth_l3_exit(void)
3592{
3593 qeth_l3_unregister_notifiers();
74eacdb9 3594 pr_info("unregister layer 3 discipline\n");
4a71df50
FB		 3595}
3596
3597module_init(qeth_l3_init);
3598module_exit(qeth_l3_exit);
3599MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
3600MODULE_DESCRIPTION("qeth layer 3 discipline");
3601MODULE_LICENSE("GPL");
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